• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    light emitting unit, display, and lighting apparatus. there is provided a light-emitting unit, utilizing a wavelength converting member, which can be put to practical use, and a display, and a lighting apparatus that include a light-emitting unit. the light emitting unit includes: a light source; an optical portion including a light incident surface facing the light source; a wavelength converting member provided between the light source and the light-inciding surface; and a support member, supporting the wavelength converting member in a position between the light source and the light-inciding surface of the optical part.
    公开号:BR102013008258B1
    申请号:R102013008258-9
    申请日:2013-04-04
    公开日:2021-07-13
    发明作者:Tomoharu Nakamura
    申请人:Sony Corporation；
    IPC主号:
    专利说明:

    FUNDAMENTALS
    [0001] The present technology refers to a light emitting unit suitable for a flat light source, for a display and for a lighting apparatus that include the light emitting unit.
    [0002] LEDs (light emitting diodes) are used as backlight in liquid crystal displays, and as a light source for lighting apparatus, and the like. This backlight, and the like, typically use a method in which red, green, and blue LED lights are synthesized to generate white light. However, it is difficult to stably obtain uniform white light using the above-mentioned method or synthesizing plural color lights. Thus, methods have been proposed in which the wavelength conversion of LED light from a single color, for example to the blue color, is carried out using a fluorescent pigment or a fluorescent dye (see, for example, , Japanese Patent Nos. 3116727 and 3114805). SUMMARY
    [0003] However, the above-mentioned method of converting the wavelength of blue LED light has not yet been put into use in practice.
    [0004] It is, therefore, desirable to provide a light-emitting unit, utilizing a wavelength converting member that can be put to practical use, and a display and a lighting apparatus that include the light-emitting unit.
    [0005] According to an embodiment of the present technology, there is provided a light emitting unit including: a light source; an optical part including a light-inciding surface, the light-inciding surface facing the light source; a converting member of the length where provided between the light source and the light-inciding surface; and a support member supporting the wavelength converting member at a position between the light source and the light-inciding surface of the optical part.
    [0006] According to an embodiment of the present technology, a display with a liquid crystal panel and a light emitting unit arranged on the rear side of the liquid crystal panel is provided. The light emitting unit includes: a fountain; an optical part including a light-inciding surface, the light-inciding surface facing the light source; a wavelength converting member provided between the light source and the light-inciding surface; and a support member, supporting the wavelength converting member, in a position between the light source and the light-inciding surface of the optical part.
    [0007] According to an embodiment of the present technology, a lighting apparatus with a light emitting unit is provided. The light emitting unit includes: a light source, an optical part including a light-inciding surface, the light-inciding surface facing the light source; a wavelength converting member provided between the light source and the light-inciding surface; and a support member, supporting the wavelength converting member in a position between the light source and the light-inciding surface of the optical part.
    [0008] According to the light emitting unit, the display and the lighting apparatus, embodiments of the present technology, the wavelength converting member and the light source are spaced apart by a predetermined interval by the support member .
    [0009] According to the light emitting unit, the display and the lighting apparatus, embodiments of the present technology, once the support member supporting the position of the wavelength converting member is provided, it is It is possible to prevent the light source and the wavelength converting member from coming into contact with each other, thereby preventing a breakage from occurring. Consequently, it is possible to make use in practice with use with improved reliability.
    [00010] It should be understood that both the descriptions, the one above and the one detailed below, are exemplary and are intended to provide further explanations of the technology that is claimed. BRIEF DESCRIPTION OF THE DRAWINGS
    [00011] The accompanying drawings are included to provide a better understanding of the publication, and are incorporated into, and constitute a part of, this report. The drawings illustrate embodiments and together with the report serve to explain the principles of the technology.
    [00012] FIG. 1 is a perspective view showing a general configuration of the light emitting unit according to an embodiment of the present technology.
    [00013] FIG. 2 is a perspective view showing the configuration of the member supporting the wavelength converting member illustrated in FIG.
    [00014] FIGS. 3A and 3B are views, each showing the state in which the wavelength converting member is mounted on the support member illustrated in FIG.
    [00015] FIG. 4 is a perspective view showing a configuration of the support member (light emitting unit) according to a second embodiment of the present technology.
    [00016] FIGS. 5A to 5C are views, each showing the state in which the wavelength converting member is mounted on the support member illustrated in FIG. 4.
    [00017] FIG. 6 is a perspective view showing another example of the support member illustrated in FIG.
    [00018] FIGS. 7A and 7B are sectional views each showing another example of a wavelength converting member, different in size, from the wavelength converting member of FIGS. from 5A to 5C.
    [00019] FIGS. 8A and 8B are sectional views each showing a modification of the eave section illustrated in FIGS. from 5A to 5C.
    [00020] FIGS. 9A and 9B are sectional views to describe the distance between the wavelength converting member and the guide plate illustrated in FIGS. from 5A to 5C.
    [00021] FIG. 10 is a perspective view showing a configuration of the support member (light emitting unit) according to a third embodiment of the present technology.
    [00022] FIGS. 11A and 11B are sectional views each showing the state in which the wavelength converting member is attached to the support member illustrated in FIG. 10.
    [00023] FIG. 12 is a sectional view showing a configuration of a support member according to a modification 1.
    [00024] FIG. 13 is a perspective view showing a configuration of a support member according to a modification 2.
    [00025] FIG. 14 is a perspective view showing the external appearance of a display to which the light emitting unit illustrated in FIG. 1 and following is applied.
    [00026] FIG. 15 is a perspective view showing a main body section illustrated in FIG. 14 in exploded form.
    [00027] FIG. 16 is a perspective view showing a panel module illustrated in FIG. 15 in exploded form.
    [00028] FIGS. 17A and 17B are perspective views each showing the external appearance of an application example 1 of the panel module illustrated in FIG. 15.
    [00029] FIG. 18 is a perspective view showing the external appearance of an application example 2.
    [00030] FIG. 19A is a perspective view showing an external appearance of an application example 3, and FIG. 19B is a perspective view showing the external appearance of the same, viewed from the rear.
    [00031] FIG. 20 is a perspective view showing an external appearance of an application example 4.
    [00032] FIG. 21 is a perspective view showing an external appearance of an application example 5.
    [00033] FIG. 22A is a front view showing an application example 6, in an unfolded state, FIG. 22B is a side view thereof, FIG. 22C is a front view in folded state, FIG 22D is a left side view, FIG. 22E is a right side view, FIG. 22F is a top view, and FIG 22G is a bottom view.
    [00034] FIG. 23 is a perspective view showing an external appearance of a lighting apparatus to which the light emitting unit illustrated in FIG. 1, and the following, is applied.
    [00035] FIG. 24 is a perspective view showing another example of the lighting apparatus illustrated in FIG. 23
    [00036] FIG. 25 is a perspective view showing yet another example of the lighting apparatus illustrated in FIG. DETAILED DESCRIPTION
    [00037] In the following, the embodiments of the present technology will be described in detail with reference to the drawings. It should be noted that the description will be in the following order:
    [00038] 1. First Mode of Realization (light emitting unit: an example of a support member, which supports the wavelength converting member about the extending direction of the wavelength converting member).
    [00039] 2. Second Mode of Realization (light emitting unit: an example of a support member, which supports the wavelength converting member in a part of the wavelength converting member).
    [00040] 3. Third Embodiment (light emitting unit: an example in which the support member includes a housing section (first housing section) for the wavelength converting member and a housing section (second section housing) to a light source).
    [00041] 4. Modification 1 (an example in which the first housing section includes a tapered section).
    [00042] 5. Modification 2 (an example in which the second housing section includes a reflective section).
    [00043] 6. Application Examples (a display and a lighting device).
    [00044] 7. Examples. (First Realization Mode)
    [00045] FIG. 1 shows the general configuration of a light-emitting unit (light-emitting unit 1) according to a first embodiment of the present technology. This light-emitting unit 1 is used, for example as a backlight, which illuminates a transmitter-type liquid crystal panel from the rear side, and is provided with a light source 10, a light guide plate 20 (optical part), a wavelength converting member 30, a reflecting member 40 and an optical blade 50. The light guide plate 20 has a left end surface and a right end surface, each serving as a light-incidence surface 20A, and main surfaces (wider surfaces) serving as light-emitting surface 20B and 20D. In other terms, the light emitting unit 1 is an edge-lit type light emitting unit.
    [00046] In this report, the Z direction (front to back direction) is a direction in which the optical blade 50, the light guide plate 20 and the reflecting member 40 are laminated; an X direction is a lateral direction of the main surface of the light guide plate 20 and the Y direction is a vertical direction of the main surface of the light guide plate.
    [00047] The light source 10 is an LED that generates, for example, a blue color light (with a wavelength of about 440nm to about 465nm, both included, for example), and the plurality of sources of light 10 are provided in facing relation to the light incidence surface 20A of the light guide plate 20. More specifically, the light source 10 is sealed in a package (package 11, described in FIG. 3B below), and assembled on a light source substrate 12. Package 11 has a flat shape and rectangular shape, with a long side, from approximately 1.8mm to approximately 7mm, both included, and a short side, from approximately 1mm to approximately 4mm, both included, for example, and a thickness (in the X direction) thereof is about 0.5mm, for example. It is preferable to use a light source 10 of small size to efficiently improve the luminance, but for example a light source 10 with a long length of about 7mm can also be used. The light source substrate 12 is, for example, a glass epoxy substrate, a metal substrate, or a flexible substrate having a rectangular shape, on which a pattern is formed. The light source substrate 12 supports a light source 10 and supplies electricity to the light source 10. A plurality of the light source substrates 12 (light sources 10) are disposed in a line along a longitudinal direction ( along the Y direction). The number of light sources can be one.
    [00048] The light guide plate mainly includes, for example, a transparent thermoplastic resin, such as polycarbonate (PC) resin and an acrylic resin, and guides the light, from a light source 10, incident on a light-inciding surface 20A, to a light-emitting surface 20B (the main surface on the side of the optical blade 50 in FIG. 1). The light-emitting surface 20B (the main side surface of the optical blade 50 in FIG. 1). The light emitting surface 20B is provided with a concave-convex pattern, configured in the minute convex sections 20C, to improve the linearity of light traveling on the light guide plate 20, for example. Convex section 20C has a band shape extending in a direction from the light-emitting surface 20B (in the X direction of FIG. 1), for example. On the light-emitting surface 20D, provided opposite the light-emitting surface 20B, for example, a scattering agent is printed in a patterned way, when the scattering section, which scatters and evens out the light, is traveling on the guide plate. light 20. In place of a spreading agent, it is also possible to provide a section including a filler, or to partially provide a rough surface on the front surface, as a spreading section.
    [00049] The wavelength converting member 30 is provided between the light source 10 and the light-inciding surface 20A of the light guide plate 20. The wavelength converting member 30 absorbs light, which it has. a wavelength generated by the light source 10, and from it generates a light having a different wavelength than the light generated by the light source 10. Specifically, after being subjected to a wavelength conversion, total or partially, in the wavelength converting member 30, light from the light source 10 enters the light-inciding surface 20A.
    [00050] In the first embodiment, the wavelength converting member 30 is held by the support member 60, illustrated in FIG. 2. This makes it possible to prevent the light source and the wavelength converting member 30 from coming into contact with each other, thus improving reliability.
    [00051] FIGS. 3A and 3B each show the state in which the wavelength converting member 30 is attached to the support member 60. FIG. 3A shows a planar configuration as viewed from the light-inciding surface 20A of the light guide plate 20, and FIG. 3B shows a transverse configuration, taken along line B-B of FIG. 3A. More specifically, the wavelength converting member 30 includes, for example, a tubular container 32 (capillary) made of glass or similar material; a wavelength converting material 31, sealed in the container 32. The container 32 (the wavelength converting member 30) extends along the length of one direction (along the Y direction) of the light-inciding surface 20A . The wavelength converting material 31 contains, for example, a fluorescent pigment, a fluorescent dye, quantum dots, etc., and absorbs light from the light source 10 to convert some or all of the absorbed light into a light having a different wavelength and emits the converted light. The wavelength converting material 31 absorbs blue-colored light from the light source 10, and converts some of the light then absorbed into red light (wavelength from about 620nm to about 750nm, both included), or into a green light (wavelength from about 495nm to about 750nm, both included), for example. In this way, when light from the light source 10 passes through the wavelength converting material 31, the red, green and blue lights are synthesized to generate white light. The container 32 has the role of suppressing the degradation of the wavelength converting material 31 due to factors such as moisture and oxygen in the atmosphere, as well as improving the handling capacity of the wavelength converting material 31. The container tubular is substantially rectangular in cross section (ZX cross section), and has a longitudinal diameter D (along the Z direction) of, for example, about 2mm to about 5mm, both included (FIG. 3B). The container 32 has a thickness (along the X direction) of, for example, approximately 0.1mm.
    [00052] The converting material of the wavelength 31, preferably, contains quantum points. The quantum dot is a particle with a diameter of about 1nm to about 100nm, both included, and that has a discrete energy level. The energy state of a quantum point depends on its size, and in this way the wavelength of light in the emission can be freely selected, modifying its size. Furthermore, the spectral width of the light emitted by quantum dots is narrow. A combination of such a steep peaked light widens the color gamut. In this way, the use of a quantum dot, as a material converting the wavelength 31, makes it possible to extend the color gamut with ease. Furthermore, since the quantum dot has a high responsiveness, it is possible to efficiently use the light from the light source 10. In addition, the quantum dot also has great stability. Examples of quantum points include composed of group12 elements and group16 elements; composed of group 13 elements and group 16 elements; or composed of group14 elements and group16 elements. Examples of these compounds include: CdSe, CdTe, ZnS, CdS, PdS, PbSe, and CdHgTe.
    [00053] The support member 60 is a support provided to fix the wavelength converting member 30, and has the function of maintaining the gap, between the wavelength converting member 30 and the light source 10, in one default value. The support member 60 includes a top face section 61, a bottom face section 62, separated from each other, and light generated in the light source passes through the space between the top face section 61 and the section. of bottom face 62, in the direction of the light incidence surface 20A (in the X direction). The top face section 61 and the bottom face section 62 each extend in the same direction as the container 32 (in the Y direction). The distance between the top face section 61 and the bottom face section 62 (in the Z direction) is preferably equal to the longitudinal diameter D. The top face section 61 and the bottom face section 62 include, each, a first locking section 63 on the light source 10 side, and a second locking section 64 on the light guide plate 20 side, thereby holding the wavelength converting member 30. Along with the above-mentioned support function, the support member 60 has the function of improving the light extraction efficiency of a wavelength converting member 30. Light from the wavelength converting member 30 is emitted at all times. directions, and with the reflection of this light by the support member 60 (the top face section 61 and the bottom face section 62), the light utilization efficiency of the wavelength converting member 30 is improved.
    [00054] The first locking section 63 is provided, in both the top face section 61 and the bottom face section 62, about the direction extending therefrom (the Y direction). The pair of first locking sections 63 are provided vertically to face each other in a vertical direction (in the Z direction), with respect to the top face section 61, and the bottom face section 62 (FIG. 2), and in this way the light source side 10 of the container 32 (of the wavelength converting member 30) is supported. The light source substrate 12, assembled with the light source 10, is held, for example, by an attachment section 66 (FIG. 3B) in a predetermined position relative to the support member 60. In other terms, the light source 10 (the package 11) and the wavelength converting member 30 (container 32) are spaced by a thickness T (in the X direction) from the first locking section 63 or greater (FIG. 3B) . In this way, the adjustment of the thickness T of the first locking section 63 makes it possible to prevent the light source 10 and the wavelength converting member 30 from coming into contact with each other. Since the light utilization efficiency of the light source 10 can be reduced, if the light source 10 and the wavelength converting member 30 are too far apart, thus preferably the clamping section 66 is adjusted so as to make the distance between the light-emitting surface of the light source 10 and the wavelength converting member 30 and the thickness T of the first locking section 63 equal to each other. Furthermore, it is preferable to make the amount of light from the light source 10, reflected by the first locking section 63, as small as possible by reducing the thickness T, taking into account the coefficient of thermal expansion of the container 32, of the package. light source 10, and the like. The thickness T of the first locking section 63 is, for example, approximately 0.8mm.
    [00055] In the same way as the above-mentioned first locking section 63, a second locking section 64 is also provided in both the top face section 61 and the bottom face section 62, about the extending direction thereof. (in the Y direction), and the second locking sections 64 are provided vertically so that one faces each other in the vertical direction (in the Z direction) with respect to the top face section 61 and the bottom face section 62 (FIG. 2). The pair of second locking sections 64 support the side of the light guide plate 20 (the light-inciding surface 20A) of the container 32 (wavelength converting member 30), and in this way the container 32 is secured to a predetermined position. The length of the first locking section 63 and the second locking section 64 in the vertical direction (in the Z direction) is, for example, approximately 0.8mm.
    [00056] As illustrated by the dotted line in FIG. 2, the top face section 61 and the bottom face section 62 of the support member 60 can be provided in eave sections 65A and 65B, respectively, on the outer side of the second locking section 64. The light guide plate 20 and the reflector member 40 are interposed and held between the eave section 65A and the eave section 65B.
    [00057] Since the support member 60 is designed to be disposed close to the light source 10, the support member is made of a material having high heat resistance and high light resistance. Furthermore, it is preferable to use a material having a low coefficient of thermal expansion as the support member 60 to improve reliability. In addition, the material of the support member 60 preferably has high reflectance, to effectively utilize light from the light source 10. Examples of material for the support member 60 include resins mixed with a metal having a high reflectance, such as oxide. titanium, and examples of resins include a highly reflective PC (polycarbonate), a highly reflective PPA (polyphthalamide), a highly reflective PPA/PCT (polycyclohexylene dimethylene terephthalate) and a highly reflective epoxy resin. In case the container 32 is made of glass, it is preferable to include PPA, which is close to the thermal expansion coefficient of glass and is cost effective. Specifically, the “Genestar (trademark)” made available by Kuraray Co. Ltd. and the like may be used. Support member 60 may also be configured from metal with a highly reflective coating. It is also possible to provide, for example, a heat-releasing member, such as a heat sink (not shown), on the outside of the support member 60, for example, on the side of the light source 10.
    [00058] The reflecting member 40 (FIG. 1) is a member having the shape of a plate, or the shape of a blade, and facing the main surface of the light guide plate 20. The reflecting member 40 is provided on the light-emitting surface side 20D of the light guide plate 20 (on the opposite side of the optical blade 50). The reflector member 40 redirects, back to the side of the light guide plate 20, the light from the light source 10, cast to the side of the light-emitting surface 20D, and the light emitted to the side of the light-emitting surface. 20D, from inside the light guide plate 20. The reflector member 40 has the function of, for example, reflecting, diffusing, spreading, and similar functions. With this, it is possible to efficiently use the light from the light source 10, and, in this way, to improve the luminance of the frontal surface.
    [00059] The reflector member 40 is configured with, for example, a PET (polyethylene terephthalate) foam, an evaporated silver film, a multi-layer reflective film, or a white PET. In the case of providing a reflector member 40 with a regular reflection function (mirror function), it is preferable to carry out processes such as silver evaporation, aluminum evaporation, and multilayer evaporation on the front surface of the same beforehand. Where the reflector member 40 has a tiny shape, this tiny shape can be integrally formed by a method such as mold extrusion molding and hot pressure molding using a thermoplastic resin, for example. Examples of this thermoplastic resin include PC, an acrylic resin such as PMMA (polymethyl methacrylate), a polyester resin such as PET, an amorphous copolyester resin such as MS (methyl methacrylate-styrene copolymer), a polystyrene resin, a polyvinyl chloride resin, and similar resins. For example, the tiny shape can be formed so that after an energy ray curable resin (eg ultraviolet) is applied to a base material of PET or glass, the pattern is transferred to the base material. base.
    [00060] The optical blade 50 is provided on the light-emitting surface side 20B (front surface) of the light guide plate 20, and includes, for example, a diffuser plate, a diffuser blade, a lens film, a separate polarizing blade, and similar blades. FIG. 1 shows only one of the aforementioned optical blades 50. The provision of an optical blade 50 makes it possible to increase the light emitted by the light guide plate 20, in an oblique direction to the forward direction, and thereby improve the luminance of the surface. front.
    [00061] In the light emitting unit 1, the wavelength converting member 30 performs the wavelength conversion of the light generated in the light source 10, and the light thus converted enters the light-incidence surface 20A of the plate. light guide 20. This light advances into the light guide plate 20, exits the light guide plate 20 from the light emitting surface 20B, and passes through the optical blade 50.
    [00062] In this case, the support member 60 holds the wavelength converting member 30 in a predetermined position between the light source 10 and the light guide plate 20. With this configuration, the reliability of the light emitting unit 1 is improved.
    [00063] To make the light generated in the light source 10 enter the light guide plate 20 efficiently, it is conceivable that the light source 10, the wavelength converting member 30 and the light guide plate light 20 are fixed, for example, with an adhesive agent, to ensure maximum possible adhesion thereof. However, when the light emitting unit is brought to such a state, due to the difference in the coefficient of thermal expansion between the light source, the container of the wavelength converting member, the adhesive agent, and the like, the light source and the container come into contact with each other, and in this way a rupture can occur. Thus, it is difficult to guarantee their reliability. In addition, the light generated in the wavelength converting member can be emitted in all directions, and in this way the efficiency of light entering the light-inciding surface 20A of the light guide plate 20 can be reduced. .
    [00064] On the other hand, in the first embodiment, the wavelength converting member 30 is held in a predetermined position by the support member 60. In other terms, the support member 60 maintains the distance between the source of light 10 and the wavelength converting member 30 at a predetermined value. Accordingly, it is possible to stably obtain uniform light through the wavelength converting member 30, and prevent disruption of the light source 10, the container 32, the wavelength converting member 30, and the like; thus improving reliability.
    [00065] In addition, the reflection of light emitted from the wavelength converting member 30, by the top face section 61 and the bottom face section 62, makes it possible to efficiently make light generated in the wavelength converting member 30 enters the light-inciding surface 20A of the light guide plate.
    [00066] As described above, once the support member 60 is provided, in the first embodiment, it is possible to improve the reliability of the light-emitting unit 1. In this way, it is possible to practically use the light-emitting unit 1 provided. with a wavelength converting member 30. In addition, it is possible to suppress the reduction in the light input efficiency of light coming from a light source 10 through the wavelength converting member 30 at the incidence surface of the 20A light, from the light guide plate.
    [00067] Although other embodiments and modifications thereof are described below, components like those mentioned in the aforementioned embodiment are assigned the same reference numbers, and their descriptions will not be made in detail, for reasons of simplification. (Second Realization Mode)
    [00068] A light emitting unit (light emitting unit 2) according to a second embodiment of the present technology, includes a support member 70, illustrated in FIG. In the support member 70, the locking sections (first locking section 63A and second locking section 64B), provided in a portion of the top face section 61 and the bottom face section 62, support the length converting member. waveform 30. Except for this point, the light emitting unit 2 has the same configuration as the light emitting unit 1 of the above-mentioned first embodiment in configuration, functions and effects.
    [00069] FIGs. 5A through 5C show the state in which the wavelength converting member 30 is attached to a support member 70. FIG. 5A shows a planar configuration, as viewed from the light-inciding surface 20A, of the guide plate of light 20; FIG. 5B shows a transverse configuration taken along line B-B in FIG. 5A, and FIG. 5C shows a transverse configuration taken along line C-C in FIG. 5A.
    [00070] The first locking section 63A of the support member 70 is in the form of a column, which connects the top face section 61 and the bottom face section 62 (FIG. 4) to each other, and supports the container 32 on the longitudinal diameter D thereof (FIG. 5B). The light source 10 (the package 11) and the wavelength converting member 30 (the container 32) are spaced apart by the thickness T of the first locking section 63A (in the X direction) or more (FIGS. 5B and 5C). In this way, adjusting the thickness T of the first locking section 63A makes it possible to prevent the light source 10 and the wavelength converting member 30 from coming into contact with each other. To suppress reflection from the first locking section 63A, a light source 10 is provided in such a way as to avoid the position facing the first locking section 63A, for example.
    [00071] The second locking sections 64A are provided as part of the top face section 61 and part of the bottom face section 62, and are provided vertically to face each other in the vertical direction (in the Z direction) , with respect to the top face section 61 and the bottom face section 62. The pair of second locking sections 64A makes it possible to support the light guide plate 20 side of the container 32, and keep the converting member of the length of wave 30 at a predetermined position. The first locking section 63A and the second locking section 64A may be provided to face each other, with the wavelength converting member 30 between them (GIG. 4), or they may alternatively be provided as required. illustrated in FIG. 6. The second locking section 64A of the top face section 61 and the second locking section 64A of the bottom face section 62 may not face each other (not shown). Although FIG. 4 illustrates the ease with which the plurality (two) of the first locking sections 63A and the second locking section 64 are provided, the number of each of the first locking section 63A and the second locking section 64A can be one.
    [00072] When the wavelength converting member 30 is held by the first locking sections 63A and the second locking section 64A, provided at the top face section portion 61 and at the bottom face section 62, it is possible to suppress vignetting of the light generated in the wavelength converting member 30. In this way, compared to the support member 60 of the above-mentioned embodiment, it is possible to improve the efficiency of the light input of light leaving the converting member of the wavelength 30, for the light-inciding surface 20A, of the light guide plate 20.
    [00073] Furthermore, to improve the efficiency of light input from the wavelength converting member 30 to the light guide plate 20, the longitudinal diameter D is preferably equal to or close to the width W of the light incidence surface 20A (in the Z direction), in size. The longitudinal diameter D can be greater than the width W (FIG. 5C), or equal to the width W (FIG. 7A), but the efficiency of light input from the wavelength converting member 30 to the surface The incidence of light 20A is particularly high when the longitudinal diameter D is slightly smaller than the width W (FIG. 7B). For example, when the width W of the light-inciding surface 20A is about 3.0mm, the longitudinal diameter D of the container 32 is approximately 2.8mm.
    [00074] The eave sections 65A and 65B are preferably provided in parallel in the top face section 61 and the bottom face section 62, respectively (FIG. 5C). For example, if eave sections 65A and 65B are curved at right angles (FIG 8A), or angled relative to top face section 61 and bottom face section 62 (FIG.8B), then the point wherein the vignetting of light is generated or accumulated takes place between the wavelength converting member 30 and the light guide plate 20 (the light-inciding surface 20A). This reduces the efficiency of light input from the wavelength converting member 30 to the light guide plate 20.
    [00075] As illustrated in FIG 9A, the wavelength converting member 30 and the light-inciding surface 24A of the light guide plate 20 are spaced apart, for example, by approximately 1.2mm, taking into account the coefficient of thermal expansion of the container 32, and of the light guide plate, etc., however, this distance can be reduced to, for example, approximately 0.5mm, as illustrated in FIG. 9B. If the support member 70 (the eave sections 65A and 65B) and the light guide plate 20 are fixed together, for example, by means of an adhesive agent or the like, then the thermal expansion of the guide plate of light 20 and that of the support member 70 agree with each other, and in this way it is possible to shorten the distance between the wavelength converting member 30 and the light-inciding surface 20A of the light guide plate 20. The support member 70 may include sidewalls (not shown) facing each other along the direction of extension of the wavelength converting member 30 (along the Y direction). (Third Realization Mode)
    [00076] A light emitting unit (light emitting unit 3) according to a third embodiment of the present technology, includes a support member 80 illustrated in FIG. 10. The support member 80 includes a first housing section 81, provided to hold the wavelength converting member 30, and a second housing section 82, provided to hold the light source 10. The second housing section 82 it is integrated with the first housing section 81. Except for this point, the light-emitting unit 3 is the same light-emitting unit 2, of the above-mentioned second embodiment, in configuration, functions and effects.
    [00077] Similar to the support member 70, the first housing section 81 includes a top face section 61, a bottom face section 62, a first locking section 63A and a second locking section 64A. FIG. 10 shows the middle section of the support member 80, and the illustration of the top face section 61 is omitted. The second housing section 82 is provided adjacent to the first housing section 81, on an opposite side of the light guide plate 20. The second housing section 82 includes a top face section 61A and a bottom face section 62A , facing each other in the Z direction.
    [00078] FIGS. 11A and 11B each show a cross-sectional configuration of the state in which the wavelength converting member 30 is attached to the support member 80. With the support member 80, light from the light source 10 enters the converting member. wavelength 30 through an opening (second opening) of the second housing section 82 between the top face section 61A and the bottom face section 62A; and light which has passed through the wavelength converting member 30 proceeds to the light-inciding surface 20A of the light guide plate 20 through the opening (first opening) of the first housing section 81 between the housing section. top face 61 and bottom face section 62. In other words, with the support member 80 it is possible to suppress the expansion of light from the light source 10, through the top face section 61A and the bottom face section 62A, and thereby improve the efficiency of utilization of the light generated in the light source 10. The depth Dp (in the X direction) of the second housing section 82 is substantially equal to the thickness of the package 11. Similar to that of the member of the aforementioned support 60, the second housing section 82 is preferably made of a material with high reflectance; in addition thereto, the top face section 61A and the bottom face section 62A are preferably provided in a position close to the light source 10 (the package 11). The front surfaces of the top face section 61A and the bottom face section 62A (the surfaces of the top face section 61A and the bottom face section 62A opposite the other surfaces thereof, facing each other) configure the same planes as the front surfaces of the top face section 61 and bottom face section 62, respectively, for example. Similar to the aforementioned support member 70, also in support member 80, the light source 10 and the wavelength converting member 30 are spaced apart by a thickness T from the first locking section 63A or greater. Preferably, the projection section 67 is provided on the rear side of the second housing section 82 (a side opposite the first housing section), so as to fix the light source substrate 12 in this projection section 67, for example. , with an adhesive agent 84.
    [00079] The opening size of the first housing section 81 (on the side of the light incidence surface 20A) and the opening size of the second housing section 82 (on the side of the wavelength converting member 30) may be different one another (FIG. 11A), or they may be the same as each other (FIG. 11). However, in case there is a step between the first housing section 81 and the second housing section 82 (FIG. 11A), the light vignetting conversion can occur in a space between the light source 10 and the member 30 wavelength converter, and thus the light input efficiency can be reduced. In this way, the top face section surfaces 61 and the bottom face section 62 which face each other and form the opening of the first housing section 81, and the surfaces of the top face section 61A and the bottom face section 61A and bottom face section 62A which face each other form the opening of the second housing section 82, preferably form the same planes (FIG 11B).
    [00080] It is preferable to fill the first housing section 81 and the second housing section 82 with a transparent fill 83. Examples of fill 83 include PMMA and PC. It is preferable to use as filler 83 an elastic body having high transmittance for light generated in light source 10, and a wavelength converting member 30, having a refractive index close to the refractive index of container 32 (e.g., index of refraction n of the glass of 1.52). The refractive index “n” of PMMA is 1.49, and the refractive index of PC is 1.59. The pad 83 may further be provided between the wavelength converting member 30 and the light guide plate 20.
    [00081] (Modification 1)
    [00082] FIG 12 shows a cross-sectional configuration of a support member (support member 80A) according to the modification 1 of the above-mentioned third embodiment, together with the wavelength converting member 30, etc. This support member 80A includes a tapered section 85, provided to direct light from the light source 10, from the opening of the second housing section 82 to the opening of the first housing section 81. Except for this point, the housing member support 80A is the same as support member 80 of the above-mentioned third embodiment, in configuration, functions and effects.
    [00083] The tapered section 85 is provided in the first housing section 85, and is located between the wavelength converting member 30 and the light source 10, when the wavelength converting member 30 is fixed in the opening of the first housing section 81 and the light source 10 is attached to the second housing section 82. The opening of the first housing section 82 is smaller than that of the first housing section 81, and the top face section 61A and the section of the bottom face section 62A of the second housing section are provided in a position closer to the light source 10 than the top face section 61 and the bottom face section 62 of the first housing section 81. The tapered section 85 is a section that continuously (successively) modifies the opening size from an opening size of the second housing section 82 to an opening size of the first housing section 81. Specifically, the opening of the tapered section 85 has a tapered shape reverse taken from the side of the light source 10 in the direction of the side of the wavelength converting member 30. With such a tapered section 85 it is possible to have a top face section 61A and a bottom face section 62A , in position close to the light source 10, and eliminate the step between the first housing section 81 and the second housing section 82 (e.g., FIG 11A). Consequently, it is possible to improve the efficiency of light input from the light source into the wavelength converting member 30. The tapered section 85 has a tapered angle θ of, for example, approximately 45 degrees. Preferably, the tapered angle θ is adjusted approximately in accordance with the size of the light source and container 32, and the like.
    [00084] (Modification 2)
    [00085] FIG. 13 shows a configuration of a main part of the support member (support member 80B) according to a modification 2 of the above-mentioned third embodiment. Support member 80B includes reflective sections 86 located between the plurality of light source 10 held in second housing section 82. Except for this point, support member 80B is the same as the aforementioned support member 80, in configuration, functions and effects. FIG 13 shows an intermediate section of the support member 80B and the top face section 61 is omitted.
    [00086] The reflective sections 86 are provided between the light sources 10 adjacent to each other, so as to reflect to the side of the light incidence surface 20A of the light guide plate 20, the light emitted from the member wavelength converter 30, for light source side 10, and the like. The reflective sections 86 are each, for example, shaped like a column, and are connected to the top face section 61A and the bottom face section 62A of the second housing section 82. Preferably, the reflective sections 86 fill the span between the light sources 10 adjacent to each other and the light sources 10 and the reflective sections 86 are alternately arranged with no gaps between them. These reflective sections 86 make it possible to improve the efficiency of utilization of the light generated in the light source 10.
    [00087] When the wavelength converting member 30 is provided between the light source 10 and the light-inciding surface 20A of the light guide plate 20, a uniform light is stably obtained. However, since the wavelength converting member 30 emits light in all directions, as mentioned above, the intensity of light generated in the light source 10 can be reduced before reaching the light guide plate 20. , reflection can occur on the surface of the container 32 of the wavelength converting member 30. In this case, once the reflective sections 86 are provided, it is possible to reflect to the light-inciding surface 20A of the light guide plate 20 , the light emitted from the wavelength converting member 30 to the side of the light source 10. The reflective sections 86 are also capable of redirecting, back to the side of the light guide plate 20, the light that is emitted from the light source 10 or the wavelength converting member 30; and then reflected in the container 32 and part of the supporting member 80B, as first locking section 63A, for example. Consequently, it is possible to improve the efficiency of utilization of the light generated in the light source 10 by the reflective section 86 and, in this way, suppress the luminance reduction. Furthermore, the provision of a first housing section 81 with a tapered section (tapered section 85 of FIG. 12) makes it possible to also improve the light input efficiency of light from the light source 10 to the converting member of the length of wave 30. It is preferable to provide a reflective surface of the reflective section 86 and a light-emitting surface of the light source 10 (the package 11) in the same plane. Like the aforementioned support member 60, for example, the reflective section 86 is made with a highly reflective PC, a highly reflective PPA, a highly reflective PPA/PCT, a highly reflective epoxy resin, or similar resins, and is integrated with top face section 61A and bottom face section 62A. The first locking section 63A has a thickness T of, for example, approximately 0.03mm. Specifically, the first locking section 63A protrudes toward the side of the wavelength converting member 30, by approximately 0.3mm, with respect to the reflective surface of the reflective section 86 and the light-emitting surface of the light source 10.
    [00088] (Examples of Applications)
    [00089] FIG. 14 shows an example of the external appearance of a display 101 to which the above-mentioned light emitting unit 1 (or the light emitting unit 2 or 3) is applied. The display 101 is used as a flat-panel television, for example, and has a configuration in which the plate-shaped main body section 102 for displaying the image is supported by a stand 103. The display 101 is used as a vertical type display, which is mounted in a horizontal plane such as a floor, a shelf, and a stand 103 affixed to the main body section 102, but, the display 101 can also be used as a wall mount type display, state in which the foot support is disassembled from the main body section 102.
    [00090] FIG. 15 shows the main body section 102, illustrated in FIG. 14, in exploded form. The main body section 102 includes, for example, from the front face side (viewer side) thereof, a front outer member (slot) 111, a panel module 112, and a rear outer member (back cover) 113, in that order. Front outer member 111 is a frame-shaped member covering the front peripheral section of panel module 112; and a pair of speakers 114 is disposed in the lower section of the outer front member 111. The panel module 112 is secured to the outer front member 111; and on the rear face thereof, an energy substrate 115 and a signal substrate 116 are mounted; and a metal part 117 is attached. The fastening part 117 is used to fasten a wall fastener, a substrate, the foot support 103, and the like. The rear outer member 113 covers the rear face and the side face of the panel module 112.
    [00091] FIG. 16 shows the panel module 112 illustrated in FIG. 15 in exploded form. The panel module includes, for example, from the front face side (viewer side) thereof, a front housing (top chassis) 121, a liquid crystal panel 122, a frame-shaped member (middle chassis) ) 90, the light emitting unit 1, a rear housing (rear chassis) 124, a balancer substrate 125, a balancer cover 126, and a timing control substrate 127, in that order.
    [00092] The front housing 121 is a metal part in the form of a frame, which covers the front peripheral section of the liquid crystal panel 122. The liquid crystal panel 122 includes, for example, a liquid crystal cell 122A, a source substrate 122B, and a flexible substrate 122C which is configured of a COF (chip or film) or the like and connects liquid crystal cell 122A and source substrate 122B with each other. The frame-shaped member 90 is a frame-shaped resin portion that holds the liquid crystal panel 122 and the optical blade 50 of the light-emitting unit 1. The back housing 124 is a metal portion that is made of iron (Fe) or the like and houses the liquid crystal panel 122, the frame member 90 and the light emitting unit 1. The balancer substrate 125 controls the light emitting unit 1. The balancer substrate 125 is mounted on the rear surface of the rear housing 124 and is covered by a balancer cover 126. The timing control substrate 127 is also mounted on the rear face of the rear housing 124.
    [00093] In the display 101, the light from the light emitting unit 1 is selectively transmitted by the liquid crystal panel 122, and in this way the image display is realized. In this case, since the light-emitting unit 1 with improved reliability is employed, as described above, the display 101 stably realizes a uniform display.
    [00094] Examples of applications in which the aforementioned panel module 112 is applied in electronic devices will be described below. These electronic devices include, for example, a television, a digital camera, a notebook personal computer, a mobile terminal device such as a cell phone, and a video camcorder. In other terms, the aforementioned display can be applied to electronic devices of various fields, which display an externally received video signal, or an internally generated video signal as image or video.
    [00095] (Example of Application 1)
    [00096] FIG. 17A and FIG 17B each show the outward appearance of an electronic book to which panel module 112 is applied. The electronic book includes, for example, a display section 210 and a non-display section 220, and the display section 210 is configured by the display 101.
    [00097] (Example of Application 2)
    [00098] FIG. 8 shows the external appearance of a smartphone to which panel module 112 is applied. The smartphone has, for example, a display section 230 and a non-display section 240, and the display section 230 is composed of a display 101.
    [00099] (Example of Application 3)
    [000100] FIGS. 19A and 19B each show the external appearance of a digital camera to which the panel module is applied. The digital camera has, for example, a light emitting section 410 for generating a flash light, a display section 420, a menu switch 430, and a shutter button 440, and the display section 420 is made up of the viewfinder. 101.
    [000101] (Application Example 4)
    [000102] FIG. 20 shows the external appearance of a notebook personal computer to which the panel module 112 is applied. The notebook personal computer includes, for example, a main body 510, a keyboard 520 for the operation of entering letters and the like, and the display section 530, used to display an image, is configured by the display 101.
    [000103] (Example of Application 5)
    [000104] FIG. 21 shows the external appearance of a video camcorder to which panel module 112 is applied. The video camcorder includes, for example, a main body section 610, a lens 620 which is provided on the side front side of the main body section 610, and is used to image an object, an on-off switch 630 to capture an image, and a display section 640. The display section is configured by viewfinder 101.
    [000105] (Example of Application 6)
    [000106] Those of FIGS. 22A through 22G show the external appearance of a mobile phone to which a panel module 112 is applied. The mobile phone includes, for example, an upper housing 710, and a lower housing 729, a coupling section (hinge section) 730, which couples the upper housing 710 and the lower housing 720; a display 740; a subviewer 750; a still image light 760; and, a camera 770. Display 740 is configured by display 101.
    [000107] FIG. 23 shows the external appearance of a lighting apparatus to which the above-mentioned light emitting unit 1 (or the light emitting unit 2 or 3) is applied. The lighting apparatus is a tabletop lighting apparatus, and includes, for example, a base 841, a support pole 842, provided on the base 841, and a lighting section 843 mounted on the support pole 842. lighting 843 is configured by the above mentioned light emitting unit 1 . When the light guide plate 20 is formed in a curved shape, the illumination section 843 may have any shape, such as the cylindrical shape illustrated in FIG. 23, and the curved shape illustrated in FIG 24.
    [000108] The light emitting unit 1 (or the light emitting unit 2 or 3) can be applied to a lighting apparatus for indoor use, illustrated in FIG 25. In the lighting apparatus, the lighting section 844 is configured by the above mentioned light emitting unit 1. Any number of 844 lighting sections can be arranged on an 850A ceiling of a building, at any range. It should be noted that instead of the ceiling 850A, the lighting section 844 can be installed in any location, such as an 850B wall and floor (not shown) as a job.
    [000109] In the above-described lighting apparatus, lighting is performed using light starting from the light-emitting unit 1. In this case, since a light-emitting unit 1 with improved reliability is employed, as described in the first embodiment , it is possible to stably obtain uniform light.
    [000110] (Examples)
    [000111] In the examples below, the present technology will be described in detail.
    [000112] It was assumed that the efficiency of light entry from the light source to the light incidence surface was 1.0 (Ref.), when the light was taken to enter the light guide plate, without providing a wavelength converting member and a support member. On the basis of these, the light input efficiency of the light-emitting unit 1 (or of the light-emitting unit 2 or 3) according to the above-mentioned embodiment, and so on, was calculated and determined. Conditions identical to Ref. were used, except for the wavelength converting member and the support member. Incidentally, all calculation results were determined under the condition that the light-inciding surface 20A of the light guide plate 20 had a width W of approximately 3.3mm. (Experiment 1)
    [000113] The light input efficiency of the light emitting unit 1 provided with the support member 60, illustrated in FIG. 1, has been determined. The support member 60 supported the wavelength converting member 30 over the direction of extension of the container 32, by means of the first locking section 63 and the second locking section 64. The longitudinal diameter D of the container 32 was set at approximately 4.0mm. (Experiment 2)
    [000114] The light input efficiency of the light emitting unit 3 provided with the support member 80 illustrated in FIG. 11 has been determined. The support member 80, included the second housing section 82 which housed the light source 10, in addition to the first locking section 81, which housed the wavelength converting member 30. The aperture (diameter approx. 2.2mm) of the second housing section 82 was smaller than the opening (about 2.8mm diameter) of the first housing section 81, and there was a pitch between the second housing section 82 and the first housing section 81. Similarly that of experiment 1, the longitudinal diameter D of container 32 was set at about 4.0mm. (Experiment 3)
    [000115] Except that the diameter D of container 32 was set at approximately 2.8mm, the light input efficiency of light emitting unit 2 was determined, similarly to experiment 2. (Experiment 4)
    [000116] The light input efficiency of the light emitting unit 3 provided with the support member 80 illustrated in FIG. 11B, has been determined. In the support member 80, the opening of the second housing section 82 and that of the first housing section 81 were equal in size (diameter approximately 2.8mm) and there was no step between the first housing section 81 and the second housing section 82. Except for this point, the calculation was performed similarly to experiment 3. (Experiment 5)
    [000117] The light input efficiency of the light emitting unit 3 provided by the support member 80A illustrated in FIG. 12, has been determined. The support member 80A was provided with a tapered section 85 in the first housing section 81. Specifically, the opening (diameter approximately 2.2mm) of the second housing section 82 was smaller than the opening (diameter approximately 2.8mm) of the first housing section 81, but, there was no pitch between the first housing section 81 and the second housing section 82. The tapered angle θ was set at approximately 45 degrees. Except for this point, calculations were performed similarly to experiment 3. (Experiment 6)
    [000118] Except that the first housing section 81 and the second housing section 82 were filled with a filler 83, the light input efficiency of the light emitting unit 3 was determined similarly to that of experiment 5. A PMMA was used as filler 83. (Experiment 7)
    [000119] The efficiency of light entering the light emitting unit 3, provided with the support member 80B illustrated in FG 13, has been determined. The support member 80B was provided with reflective sections 86 between the light sources 10 adjacent to each other. Except for this point, calculations were performed similarly to experiment 5.
    [000120] The results of experiments 1 through 7 mentioned above are shown in Table 1. (Table 1)

    [000121] Comparing experiment 1 with experiment 2, it is confirmed that when the wavelength converting member 30 is supported by the first locking section 63A and second locking section 64, in a part of the container 32, vignetting of light between the light source 10 and the wavelength converting member 30, and between the wavelength converting member 30 and the light incident surface 20A, of the light guide plate 20 is reduced. , and thus the efficiency of light input is improved. Furthermore, preferably, the longitudinal diameter D of the container 32 of the wavelength converting member 30 is close in size to the width W of the light-inciding surface 20A, and is smaller than the width W (experiments 2 and 3 ). Preferably, no pitch is placed between the first housing section 81 and the second housing section 82 (experiments 3 and 4). Furthermore, the closer the upper face surface 61A and the lower face surface 62A of the second housing section 82 are to the light source, the more the light input efficiency will be improved (experiments 4 and 5). Furthermore, when the first housing section 81 and the second housing section 82 are filled with a filler 83, the light entry efficiency is further improved (experiments 5 and 6). Furthermore, the provision of a reflective section 86 further improves the efficiency of light entry (experiments 5 and 7).
    [000122] Although the present technology has previously been described herein with reference to embodiments and modifications, the present technology is not limited to the above-described embodiments and various modifications can be made. For example, although the light source 10, which generates blue light, is used in the aforementioned embodiments and so on, the light source 10 can also generate light of other colors, such as red and green, or it can generate light that is not visible light, for example, ultraviolet light. Furthermore, although a blue light is passed through the wavelength converting member 30 to generate a white light, in the above mentioned embodiments and so on, a light of other colors than white, as in example, red-orange, blue and green can also be generated, for example.
    [000123] Additionally, although the light incidence surface 20A of the light guide plate 20 is provided on both the left end surface and the right end surface, in the above-mentioned embodiments, and so on, the incidence surface The 20A light can be provided on only one of the four end surfaces (top, bottom, left and right) surrounding the main surface, or on three or more than four surfaces. Furthermore, it is also possible to configure the light emitting unit 1 (or the light emitting units 2 or 3) in a type of backlight, by arranging the light source 10 in the position facing the main surface of the light guide plate 20 Furthermore, it is only necessary that the flat shape of the light guide plate 20 matches the shape of an object to be radiated by the light-emitting unit 1, and the flat shape of the light guide plate 20 can be other different shapes. of rectangular shape. Additionally, although the light guide plate 20 is used as the optical part in the aforementioned embodiments and so on, the convex section 20G of the light guide plate 20 can be omitted, and the light guide plate 20 can be made of a gel-shaped material. Alternatively, for example, light emitted from the wavelength converting member 30 may be guided by components of the lighting apparatus, display 101, and the like.
    [000124] Furthermore, although the case where the light source 10 is an LED has been described in the above mentioned embodiments and so on, the light source 10 can also be configured as a semiconductor laser, or the like .
    [000125] Furthermore, although the configurations of light emitting units 1,2 and 3, display 101 (television) and the like have been described in detail in the aforementioned embodiments, not all components need necessarily be included and other components can also be included.
    [000126] Furthermore, for example, the materials and thicknesses of the components described in the aforementioned embodiments are not limiting and other materials and thicknesses can also be employed.
    [000127] It should be noted that the present technology can be configured as follows:
    [000128] (1) A light emitting unit including: a light source; an optical portion including a light-incidence surface facing the light source; a wavelength converting member between the light source and the light incident surface; and a support member, supporting the wavelength converting member in a position between the light source and the light-inciding surface.
    [000129] (2) The light-emitting unit according to (1), wherein: the support member includes a first locking section and a second locking section, the first locking section being provided closest to the source of light than the optical part; the second locking section being provided closer to the optical part than the light source; and a wavelength converting member is secured between the first locking section and the second locking section.
    [000130] (3) The light-emitting unit according to (2) wherein the wavelength converting member is moved away from the light source by a distance predetermined by the thickness of the first locking section.
    [000131] (4) The light-emitting unit according to (2) or (3), the support member including a top face section and a bottom face section separated from each other, the light of The light source proceeds to the light-incidence surface of the optical part, through the space between the top face section and the bottom face section, and the first locking section and the second locking section are provided in one part. of the top face section and the bottom face section.
    [000132] (5) The light emitting unit according to any one of items (1) to (4), wherein the wavelength converting member includes a wavelength converting material sealed in a tubular container.
    [000133] (6) The light emitting unit according to (5), the wavelength converting material containing quantum points.
    [000134] (7) The light-emitting unit according to any one of items (2) to (6), the support member including a first housing section and a second housing section integrated with the first section of housing, the first housing section including the first locking section and the second locking section, the second housing section housing the light source.
    [000135] (8) The light-emitting unit according to (7), wherein: the first housing section includes a first opening, through which light from the wavelength converting member is extracted, and the second housing section includes a second opening, through which light from the light source is extracted.
    [000136] (9) The light-emitting unit according to (8), wherein: the second opening is smaller than the first opening; and the first housing section includes a tapered section that guides light from the light source from the second opening to the first opening.
    [000137] (10) The light-emitting unit according to (8), the first opening and the second opening having substantially the same size.
    [000138] (11) The light-emitting unit according to any one of items (7) to (9), further including: a plurality of light sources, the second housing section including a reflecting section, located between light sources; the reflector section being configured to redirect, back to the light-inciding surface side, the light coming from the wavelength converting member side.
    [000139] (12) The light-emitting unit according to (5), the container having a longitudinal transverse diameter equal to, or less than, the width of the light incidence surface.
    [000140] (13) The light-emitting unit according to any one of items (1) to (12), wherein the support member contains a resin mixed with titanium oxide.
    [000141] (14) The light-emitting unit according to (13), the resin containing any one of polycarbonate (PC), polyphthalamide (PPA), polycyclohexylene dimethylene terephthalate (PPA/PCT), and an epoxy resin .
    [000142] (15) The light-emitting unit according to (2), the support member including an eave section that holds the optical part; the eave section being disposed on an outer side of the second locking section.
    [000143] (16) The light-emitting unit according to any of the items (1) to (15) where: the optical part is a light guide plate, and the light-inciding surface is a surface end of the light guide plate.
    [000144] (17) The light emitting unit according to any of the items (1) to (16), the light source being a blue light source.
    [000145] (18) The light-emitting unit according to any one of items (1) to (17), the light source being a light-emitting diode (LED).
    [000146] (19) A display with a liquid crystal panel and a light emitting unit disposed on the rear side of the liquid crystal panel, the light emitting unit including: a light source; an optical part including a light-inciding surface, the light-inciding surface facing the light source; a wavelength converting member provided between the light source and the light-inciding surface; and a support member holding the wavelength converting member in a position between the light source and the light-inciding surface of the optical part.
    [000147] (20) Lighting apparatus with a light emitting unit, the light emitting unit including: a light source; an optical part including a light incidence surface; the light incidence surface facing the light source; a wavelength converting member provided between the light source and the light-inciding surface; and a support member, supporting the wavelength converting member in a position between the light source and the light-inciding surface of the optical part.
    [000148] The present publication contains matter related to that published in Patent Application JP 2012-090201, filed with the Japan Patent Office on April 11, 2012, the entire contents of which are incorporated herein by reference.
    [000149] Those skilled in the art should understand that various modifications, combinations, sub-combinations, and alterations can be made depending on a project's requirements and other factors, as long as they fall within the scope of the appended claims and their equivalents.
    权利要求:
    Claims (17)
    [0001]
    1. A light emitting unit (1) comprising: a light source (10); a light guide plate (20) including an end surface (20A) as a light-inciding surface (20A); the light-incidence surface (20A) facing the light source (10); a wavelength converting member (30) provided between the light source (10) and the light-inciding surface (20A) of the light guide plate (20); and a reflector member (40) attached to a main surface (20D) of the light guide plate (20); wherein the wavelength converting member (30) includes a wavelength converting material (31) sealed to a tubular container (32); wherein the tubular container (32) has a transverse diameter in the direction of the thickness of the light guide plate (20), and thus in a direction parallel to the light-inciding surface (20A) and parallel to the direction in which the light guide plate the light guide (20) and the reflecting member (40) are laminated, which is less than the thickness of the light guide plate (20) on the light-inciding surface (20A); characterized by: a support member (60, 70, 80) holding the wavelength converting member (30) in a position between the light source (10) and the light-incidence surface (20A) of the platen. light guide (20), wherein the support member (60) includes eave sections (65A, 65B) between which the light guide plate (20) and the reflector member (40) are held; wherein the support member (60, 70, 80) includes a first locking section (63) and a second locking section (64), the first locking section (63) being provided closest to the light source (10 ) than the light guide plate (20), the second locking section (64) being provided closer to the light guide plate (20) than the light source (10), and the length converting member The waveform (30) is fixed between the first locking section (63) and the second locking section (64).
    [0002]
    2. A light-emitting unit (1) according to claim 1, characterized in that the wavelength converting member (30) is distanced from the light source (10) by a distance predetermined by the thickness of the first section of locking (63).
    [0003]
    3. A light-emitting unit (1) according to claim 1, characterized in that: the support member (60) includes a separate top face section (61) and a separate bottom face section (62) from each other, light from the light source (10) proceeds to the light-inciding surface (20A) of the light guide plate (20) through a space between the top face section (61) and the bottom face section (62), and the first locking section (63) and the second locking section (64) are respectively provided in a part of the top face section (61) and the end face section. bottom (62).
    [0004]
    4. Light emitting unit (1) according to claim 1, characterized in that the wavelength converting material (31) contains quantum points.
    [0005]
    5. Light emitting unit (1) according to claim 1, characterized in that the container (32) has a transverse longitudinal diameter equal to or less than the width of the light incidence surface (20A).
    [0006]
    6. Light-emitting unit (1) according to claim 1, characterized in that the support member (80) includes a first housing section (81) and a second housing section (82) integrated with the first housing section (81); the first housing section (81) including the first locking section (63) and the second locking section (64); the second housing section (82) housing the light source (10).
    [0007]
    7. A light-emitting unit (1) according to claim 6, characterized in that: the first housing section (81) includes a first opening through which light the wavelength converting member (30) is extracted, and the second housing section (82) includes a second opening through which light from the light source (10) is extracted.
    [0008]
    8. A light-emitting unit (1) according to claim 7, characterized in that: the second opening is smaller than the first opening, and the first housing section (81) includes a tapered section (85) which guides light from the light source (10) from the second opening to the first opening.
    [0009]
    9. Light-emitting unit (1) according to claim 7, characterized in that the first opening and the second opening have substantially the same diameter.
    [0010]
    10. A light-emitting unit (1) according to claim 6, characterized in that it further comprises: a plurality of light sources (10), wherein the second housing section (82) includes a reflective section (86) located between the light sources (10), the reflective section (86) being configured to redirect back to the side of the light incidence surface (20A) light coming from the side of the wavelength converting member (30 ).
    [0011]
    11. Light emitting unit (1) according to claim 1, characterized in that the support member (60, 70, 80) contains a resin mixed with titanium oxide.
    [0012]
    12. Light emitting unit (1) according to claim 11, characterized in that the resin contains any of: polycarbonate (PC); polyphthalamide (PPA), polycyclohexylene dimethylene terephthalate (PPA/PCT) and an epoxy resin.
    [0013]
    13. Light-emitting unit (1) according to claim 1, characterized in that the eave sections (65A, 65B) is arranged on an outer side of the second locking section (64).
    [0014]
    14. Light emitting unit (1) according to claim 1, characterized in that the light source (10) is a blue light source (10).
    [0015]
    15. Light emitting unit (1) according to claim 1, characterized in that the light source (10) is a light emitting diode (LED).
    [0016]
    16. Display (101) with a liquid crystal panel (122) and a light emitting unit (1) disposed on the rear side of the liquid crystal panel (122), the light emitting unit (1) comprising: a source of light (10); a light guide plate (20) including an end surface (20A) as a light-inciding surface (20A); the light-incidence surface (20A) facing the light source (10); a wavelength converting member (30) provided between the light source (10) and the light-inciding surface (20A) of the light guide plate; and a reflector member (40) attached to a main surface (20D) of the light guide plate (20); wherein the wavelength converting member (30) includes a wavelength converting material (31) sealed to a tubular container (32); wherein the tubular container (32) has a transverse diameter in the direction of the thickness of the light guide plate (20), and thus in a direction parallel to the light-inciding surface (20A) and parallel to the direction in which the light guide plate the light guide (20) and the reflecting member (40) are laminated, which is less than the thickness of the light guide plate (20) on the light-inciding surface (20A); characterized by: a support member (60, 70, 80) supporting the wavelength converting member (30) in a position between the light source (10) and the light-incidence surface (20A) of the light plate. guide (20); wherein the support member (60) includes eave sections (65A, 65B) between which the light guide plate (20) and the reflector member (40) are held; wherein the support member (60, 70, 80) includes a first locking section (63) and a second locking section (64), the first locking section (63) being provided closest to the light source (10 ) than the light guide plate (20), the second locking section (64) being provided closer to the light guide plate (20) than the light source (10), and the length converting member The waveform (30) is fixed between the first locking section (63) and the second locking section (64).
    [0017]
    17. Lighting apparatus (843) having a light emitting unit (1), the light emitting unit (1) comprising: a light source (10); a light guide plate (20) including an end surface (20A) as a light-inciding surface (20A), the light-inciding surface (20A) facing the light source (10); a wavelength converting member (30) provided between the light source (10) and the light-inciding surface (20A) of the light guide plate (20); and a reflector member (40) attached to a main surface (20D) of the light guide plate (20); wherein the wavelength converting member (30) includes a wavelength converting material (31) sealed to a tubular container (32); wherein the tubular container (32) has a transverse diameter in the direction of the thickness of the light guide plate (20), and thus in a direction parallel to the light-inciding surface (20A) and parallel to the direction in which the light guide plate the light guide (20) and the reflecting member (40) are laminated, which is less than the thickness of the light guide plate (20) on the light-inciding surface (20A); characterized by: a support member (60, 70, 80) supporting the wavelength converting member (30) in a position between the light source (10) and the light-incidence surface (20A) of the guide plate of light (20); wherein the support member (60) includes eave sections (65A, 65B) between which the light guide plate (20) and the reflector member (40) are held; wherein the support member (60, 70, 80) includes a first locking section (63) and a second locking section (64), the first locking section (63) being provided closest to the light source (10 ) than the light guide plate (20), the second locking section (64) being provided closer to the light guide plate (20) than the light source (10), and the length converting member The waveform (30) is fixed between the first locking section (63) and the second locking section (64).
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    法律状态:
    2016-01-19| B03A| Publication of a patent application or of a certificate of addition of invention [chapter 3.1 patent gazette]|
    2018-12-04| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2020-02-27| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-01-26| B07A| Technical examination (opinion): publication of technical examination (opinion) [chapter 7.1 patent gazette]|
    2021-05-11| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-07-13| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 04/04/2013, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    JP2012090212|2012-04-11|
    JP2012090212A|JP5939004B2|2012-04-11|2012-04-11|LIGHT EMITTING DEVICE, DISPLAY DEVICE, AND LIGHTING DEVICE|
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