• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
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    • 专利摘要:
    SUMMARY OF THE INVENTION The present invention aims to realize improvement in luminous luminance and luminous efficiency in a PDP, and in order to achieve the object, the first substrate and the second substrate are arranged side by side at intervals, and the opposing surface of the first substrate is provided. In a PDP in which paired display electrodes and a dielectric layer covering the display electrodes are formed, and a plurality of discharge cells are formed along the paired display electrodes, two or more recesses are formed in each discharge cell on the surface of the dielectric layer. do. In addition, when manufacturing a PDP having recesses formed on the surface of the dielectric layer, it is aimed at realizing cost reduction by increasing the production yield with a small number of steps. In order to achieve the object, a plurality of display electrodes are arranged. In the step of forming a dielectric layer covering a display electrode on a substrate, a transfer film manufacturing step of forming a transfer film by forming a dielectric precursor layer on a support film, and a recess to form a recess in the dielectric precursor layer of the transfer film And a transfer step of transferring the dielectric precursor layer of the transfer film onto the first substrate after the forming step and the recess forming step.
    公开号:KR20030097903A
    申请号:KR10-2003-7015532
    申请日:2002-05-27
    公开日:2003-12-31
    发明作者:모리오 후지타니；히로유키 요네하라；마사키 아오키；게이스케 스미다；히데키 아시다；준이치 히비노
    申请人:마츠시타 덴끼 산교 가부시키가이샤；
    IPC主号:
    专利说明:

    Plasma Display Panel, Manufacturing Method and Transfer Film {PLASMA DISPLAY PANEL, ITS MANUFACTURING METHOD, AND TRANSFER FILM}
    [2] In recent years, the expectation of a large-screen wall-mounted television as an interactive information terminal has increased. For this reason, there are many display panels represented by liquid crystal TVs, field emission displays, electroluminescent displays, and the like, some of which are commercially available, and some of which are under development.
    [3] Among these, the plasma display panel (PDP) has a feature that is not present in other devices that can display a clear image with a self-luminous type and are easily screened.
    [4] In general, the PDP has a structure in which discharge cells of each color are arranged in a matrix shape. In an AC surface discharge type PDP, a front glass substrate and a rear glass substrate are arranged in parallel through a partition wall, and a pair of display electrodes (scanning) is formed on the front glass substrate. Electrodes and sustain electrodes) are arranged in parallel, and a dielectric glass layer is formed thereon, and an address electrode is disposed on the rear glass substrate to be orthogonal to the scanning electrode, and partitioned by a partition between the front glass substrate and the rear glass substrate. A phosphor layer of red (R), green (G), and blue (B) is disposed in the space thus formed, and the discharge gas is sealed to form a panel structure in which discharge cells of each color are formed.
    [5] When driving the PDP, a voltage is applied to each electrode in the driving circuit. As a result, when discharge occurs in each discharge cell, ultraviolet rays are emitted, and the phosphor particles (red, green, blue) of the phosphor layer receive the ultraviolet rays and emit an excitation to display an image.
    [6] In such a PDP, in order to obtain good image quality, it is necessary to adjust the light emission amount of each color cell so that a high color temperature can be obtained when displaying white color. In general, since the blue phosphor has a weaker light emission intensity than the other two colors, in the conventional PDP, by adjusting the driving circuit so that the discharge amount in the blue cell is larger than the cells of other colors, the light emission amount balance of each color is maintained.
    [7] In the PDP, however, it is required to reduce the power consumption and to display images with high brightness.
    [8] In order to make the PDP emit light with high brightness, it is also considered effective to increase the discharge intensity by setting the thickness of the dielectric layer thin. However, only by thinning the dielectric layer does not improve the luminous efficiency but rather tends to lower the luminous efficiency of the phosphor layer.
    [1] BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas discharge display device used for a display device, a manufacturing method thereof, and a transfer film used for the production thereof.
    [42] 1 is a perspective view of an essential part showing a PDP according to an embodiment of the present invention;
    [43] 2 is a view showing a state in which a display electrode pair, an address electrode and a partition wall are arranged.
    [44] 3 is a cross-sectional view showing an example in which the surface of the dielectric layer has a texture structure.
    [45] 4 is a perspective view showing an example in which the surface of the dielectric layer is a texture structure;
    [46] 5 is a diagram showing an example in which grooves are formed on a surface of a dielectric layer over a plurality of discharge cells.
    [47] Fig. 6 is a diagram showing an example in which the first concave portion and the second concave portion are formed in island shapes for each discharge cell on the surface of the dielectric layer.
    [48] Fig. 7 is a diagram showing an example of forming concave portions in different forms for each color cell of RGB on the surface of the dielectric layer.
    [49] Fig. 8 is a diagram showing another example in which recesses are formed in different forms for each of the color cells of RGB on the surface of the dielectric layer.
    [50] 9 is a view showing an example in which the thickness of the dielectric layer is changed so as to focus the light shielding region from the light shielding region.
    [51] 10 is a schematic configuration diagram of a lamination device for performing mold pressure and transfer.
    [52] 11 is a perspective view showing the structure of a pressure roller.
    [9] The first object of the present invention is to improve the luminous luminance and luminous efficiency of a PDP.
    [10] In addition, in the PDP, a second object is to allow a high color temperature to be obtained when displaying white color by maintaining the balance of the amount of emitted light of each color even without adjustment by the driving circuit.
    [11] In order to achieve the first object, the first substrate and the second substrate are arranged side by side at intervals, and a pair of display electrodes and a dielectric layer covering the display electrodes are formed on opposite surfaces of the first substrate, In a PDP in which a phosphor layer is formed on an opposite surface of a substrate and a plurality of discharge cells are formed along a pair of display electrodes, two or more recesses are formed in each discharge cell on the surface of the dielectric layer. Here, the "surface of the dielectric layer" is the surface of the side of the second substrate in the dielectric layer, that is, the surface corresponding to the discharge space.
    [12] In the conventional PDP, since strong discharge is easily concentrated near the discharge gap of the display electrode pair, the luminance saturation of the phosphor easily occurs in the vicinity of the discharge gap, and this luminance saturation causes a decrease in luminous efficiency.
    [13] In contrast, according to the configuration of the present invention, since the capacitance of the dielectric layer is large locally in each recess, a relatively large charge is formed in each recess when a voltage is applied to the display electrode. Therefore, the discharge start voltage is lowered. At the same time, since discharge occurs at each recess, strong discharge spreads not only in the vicinity of the discharge gap but also in the periphery thereof, thereby suppressing the luminance saturation of the phosphor.
    [14] In this way, not only the discharge start voltage is lowered, but also the origin of discharge in the discharge region is dispersed, thereby making it possible to improve the light emission luminance and the light emission efficiency.
    [15] When forming a recessed part in the surface of a dielectric layer, it is preferable to have a form as follows.
    [16] The surface of the dielectric layer is a texture structure.
    [17] Further, within each discharge cell, the first concave portion and the second concave portion are arranged to be distributed to the first display electrode side and the second display electrode side via the center portion of the discharge cell.
    [18] Here, the first groove and the second groove are formed on the surface of the dielectric layer in a direction in which the display electrode extends, and a part of the first groove and the second groove is the first concave portion and the second concave portion. Be sure to The first groove and the second groove are formed in a wave shape or a zigzag shape, respectively.
    [19] Further, the first concave portion and the second concave portion are formed in island shapes in each discharge cell. Here, the first concave portion and the second concave portion are U-shaped or V-shaped, and the end portions or the top portions are arranged to face each other.
    [20] The interval between the first concave portion and the second concave portion is set so that the peripheral portion becomes larger than the central portion of each discharge cell in the direction in which the first display electrode and the second display electrode extend.
    [21] Within each discharge cell, the first concave portion and the second concave portion are arranged to be distributed in a direction in which the first display electrode and the second display electrode extend through the center portion of the discharge cell.
    [22] Here, the first and second grooves are formed on the surface of the dielectric layer over a plurality of discharge cells along a direction orthogonal to the direction in which the first and second display electrodes extend. A portion of the portion is such that the first recessed portion and the second recessed portion.
    [23] Alternatively, the first concave portion and the second concave portion are formed in island shapes in each discharge cell.
    [24] At least one of the first concave portion and the second concave portion is provided with regions having different depths therein.
    [25] In the PDP having the above constitution, the second object can also be achieved by changing the shape of the concave portion for each color of the phosphor layer in the discharge cell.
    [26] Specifically, it is preferable to have the following form.
    [27] The area of the recess formed in the discharge cell is set so that the color of the phosphor layer formed in the discharge cell is increased in the order of RGB.
    [28] The interval between the first concave portion and the second concave portion in each discharge cell is set so that the color of the phosphor layer formed in the discharge cell increases in the order of RGB.
    [29] The first purpose is that the front substrate and the rear substrate are arranged side by side at intervals, a display electrode pair and a dielectric layer covering the display electrode pair is formed on the opposite surface of the front substrate, a plurality of discharge cells along the display electrode pair In the PDP having a transmission region that is easy to transmit visible light emitted from the discharge cell and a shielding area that is difficult to transmit visible light, on the front substrate side of each discharge cell, the luminous flux generated from the discharge cell and directed toward the shielding area. It can also be achieved by varying the thickness of the dielectric layer from region to region so as to refract light into the transmission region.
    [30] Specifically, the dielectric layer is preferably formed in a lens shape for condensing light generated in the discharge cells from the light shielding region to the light transmitting region.
    [31] In the present invention, when manufacturing a PDP having recesses formed on the surface of the dielectric layer as described above, it is a third object to realize cost reduction by increasing the production yield with a small number of steps.
    [32] In order to achieve the third object, a process of forming a dielectric layer by covering a display electrode on a first substrate on which a plurality of pairs of display electrodes are disposed, the transfer film to form a dielectric precursor layer on a support film to produce a transfer film A manufacturing step, a recess forming step of forming a recess in the dielectric precursor layer of the transfer film, and a transfer step of transferring the dielectric precursor layer of the transfer film on the first substrate after the recess forming step.
    [33] In addition, a transfer film manufacturing step of forming a transfer film by forming a dielectric precursor layer on the support film, a transfer step of transferring the dielectric precursor layer of the transfer film on the first substrate, and a dielectric precursor transferred on the first substrate And forming a recess in the layer.
    [34] Here, "forming a recess in the dielectric precursor layer" means that the thickness of the dielectric precursor layer is partially different.
    [35] In the recess forming step, it is preferable to form a recess by pressing a base having a convex shape to the surface of the transfer film.
    [36] Although the said base part may be flat or roller-shaped, it is preferable at the point where a roller-shaped side is easy to form a recessed part continuously, and a recessed part can be formed in uniform depth even if a dielectric precursor layer is not constant.
    [37] The third object is a transfer film in which a dielectric precursor layer made of a dielectric precursor comprising a glass powder and a resin is formed on a supporting film, which is used to form a dielectric layer of a PDP, and corresponding to each discharge cell in the dielectric precursor layer. It can also achieve by forming a recessed part according to the position to make.
    [38] The transfer film includes a dielectric precursor layer forming step of forming a dielectric precursor layer comprising a dielectric composition comprising a glass powder and a resin on a support film, and a recess forming step of forming a recess in the dielectric precursor layer. It can manufacture.
    [39] In the above PDP manufacturing method, a lamination apparatus for laminating a transfer film having a dielectric precursor layer for forming a dielectric layer on a substrate, and using a roller having projections for forming recesses on the surface of the transfer film is used. The recess can be easily formed in the dielectric precursor layer.
    [40] Further, as a transfer film producing apparatus for forming a dielectric precursor layer for forming a dielectric layer of a PDP on a supporting film, by using a roller having projections for forming a recess on the surface of the film forming material layer, Concave portions can be easily formed in the dielectric precursor layer.
    [41] Further, an apparatus for removing a film covering a dielectric precursor layer made of a dielectric precursor comprising a glass powder and a resin, which is used to form a dielectric layer of a plasma display panel, for creating recesses in the surface of the dielectric precursor layer. By providing a roller having protrusions, the recess can be easily formed in the dielectric precursor layer.
    [53] EMBODIMENT OF THE INVENTION Hereinafter, the Example which concerns on this invention is described, referring drawings. The examples and drawings shown below of the present invention are for the purpose of illustration, and the present invention is not limited thereto.
    [54] 1 is a perspective view of principal parts showing an AC surface discharge type PDP according to an embodiment.
    [55] The PDP is arranged such that the front panel 101 and the back panel 111 are spaced in parallel with each other.
    [56] The front panel 101 has a display electrode pair (first display electrode 103a, second display electrode 103b), a dielectric layer 106, and a protective layer 107 on the opposite surface of the front glass substrate 102 in this order. It is arranged as it is. On the other hand, in the rear panel 111, an address electrode 113 as a second electrode, a dielectric layer 114, and a partition wall 115 are arranged in order on the opposite surface of the rear glass substrate 112, and the partition walls 115 are separated from each other. The phosphor layer 116 is disposed in between. In addition, the phosphor layers 116 are repeatedly arranged in the order of red, green, and blue.
    [57] The front panel 101 and the back panel 111 are attached to each other by a peripheral sealing material (not shown), and the gap between the two panel plates is partitioned by stripe-shaped partition walls 115 to form a discharge space. The discharge gas is enclosed in the inside.
    [58] 2 shows a state where the display electrode pairs 103a and 103b, the address electrode 113 and the partition wall 115 are arranged.
    [59] The display electrode pairs 103a and 103b are arranged in a stripe shape along the row direction of the matrix display. In addition, the line A in the figure shows the center line of the gap (discharge gap) 201 between the display electrode pairs 103a and 103b.
    [60] The partition wall 115 and the address electrode 113 are arranged in a stripe shape along the column direction.
    [61] In addition, a panel structure is formed in which discharge cells (unit light emitting regions) 202 emitting red, green, and blue colors are formed at portions where the display electrode pairs 103a, 103b and the address electrode 113 cross each other.
    [62] Each of the display electrodes 103a and 103b may be formed only of a metal having low resistance (for example, Cr / Cu / Cr or Ag). However, as shown in FIG. 2, the conductive electrodes such as ITO, SnO 2 , ZnO, and the like are used. It is also possible to have an electrode structure in which a bus electrode 105 having a width narrower than that of the transparent electrode 104 is laminated on a wide transparent electrode 104 made of a metal oxide. It is preferable to provide a wide transparent electrode 104 in the display electrode 103 to secure a wide discharge area in the cell. However, in the case of a precise cell structure, the width of the display electrodes 103a and 103b is small. For example, since it is necessary to set it to 50 micrometers or less, it can be said that it is suitable to form only a metal electrode.
    [63] The dielectric layer 106 is a layer made of a dielectric material covering the entire surface on which the display electrodes 103a and 103b on the front glass substrate 102 are disposed. Generally, lead-based low melting glass is used, but bismuth is used. The low melting point glass or the lead type low melting point glass and the bismuth low melting point glass may be formed.
    [64] The protective layer 107 is a thin film layer made of magnesium oxide (Mg0) and covers the entire surface corresponding to the discharge space of the dielectric layer 106.
    [65] On the other hand, the address electrode 113 in the back panel 111 is formed of a silver electrode film.
    [66] The dielectric layer 114 is the same as the dielectric layer 106, but TiO 2 particles are mixed so that the dielectric layer 114 also functions as a reflective layer that reflects visible light.
    [67] The partition wall 115 is made of a glass material and protrudes on the surface of the dielectric layer 114 of the rear panel 111.
    [68] As the phosphor material constituting the phosphor layer 116, here,
    [69] Blue phosphor: BaMgAl 10 O 17 : Eu
    [70] Green phosphor: Zn 2 SiO 4 : Mn
    [71] Red phosphor: (Y, Gd) BO 3 : Eu
    [72] Use
    [73] A driving circuit (not shown) is connected to the display electrode pairs 103a and 103b and the address electrode 113 of this PDP to form a PDP display device. In the driving circuit, by applying an address discharge pulse to the display electrode 103a and the address electrode 113, wall charges are accumulated in the cell to emit light, and then sustain discharge pulses are applied to the display electrode pairs 103a and 103b. The image display is performed by repeating the operation of performing sustain discharge in the cells in which wall charges are accumulated by applying.
    [74] The dielectric layer 106 has a film thickness different for each part.
    [75] Hereinafter, the first to third embodiments will be described in detail.
    [76] [First Embodiment]
    [77] In this embodiment, a plurality of recesses 108 are formed in each discharge cell 202 in the dielectric layer 106. The protective layer 107 covers the surface of the dielectric layer 106 and covers the inner surface of the recess 108.
    [78] As such, by forming the recesses in the discharge cells of the dielectric layer 106, the capacitance C of the dielectric layer 106 is locally increased at the recesses 108. That is, since the concave portion in the dielectric layer has a relatively small film thickness, the capacitance becomes large. Therefore, when a voltage is applied between the display electrode pairs 103a and 103b, relatively large charges are formed in the recesses.
    [79] When a large charge is formed locally as described above, even if the voltage applied to the display electrode is relatively low, discharge is started because the charge formed in the recess is large.
    [80] In the dielectric layer 106 according to the present embodiment, the plurality of recesses 108 are formed in the discharge region of each discharge cell, so that the luminous efficiency can be improved.
    [81] That is, in the conventional PDP, since discharge generally starts near the discharge gap, strong discharge tends to be concentrated near the discharge gap. Therefore, the luminance saturation of the phosphor in the vicinity of this discharge gap (ultraviolet rays due to the next discharge is irradiated onto the phosphor layer before the phosphor layer is completely emitted, and the ultraviolet ray is not used efficiently) tends to occur. It causes a decrease in efficiency.
    [82] Here, in the case where the dielectric layer is formed as a whole, or when the dielectric gap is formed in the vicinity of the discharge gap, the discharge start voltage is lowered, but the concentration of the strong discharge in the vicinity of the discharge gap cannot be alleviated, and the discharge strength is also increased. Luminescence saturation of the phosphor occurs.
    [83] On the other hand, as in the dielectric layer 106, a large amount of charge is locally formed in each of the plurality of recesses 108 formed in the discharge region of each discharge cell, and discharge occurs from each recess 108. .
    [84] Therefore, since the starting point of the discharge is dispersed in the discharge region, the concentration of strong discharge in the vicinity of the discharge gap 201 is alleviated, so that the luminance saturation of the phosphor is suppressed.
    [85] As described above, according to the dielectric layer 106, not only the discharge start voltage is lowered but also the origin of discharge in the discharge region is dispersed, which makes it possible to greatly improve the light emission luminance and the light emission efficiency.
    [86] As shown in FIG. 2, the partition wall 115 is arranged in a direction orthogonal to the direction in which the display electrode pairs 103a and 103b extend, and the discharge cells 202 extend further in the direction in which the partition wall 115 extends. Shape.
    [87] Accordingly, the plurality of recesses (first recesses 108a and second recesses 108b) are disposed on the display electrode 103a side and the display electrode 103b side through the center line A in the discharge cell 202. It is preferable to disperse | distribute and to arrange | position a starting point of discharge in the longitudinal direction of the discharge cell 202.
    [88] (About a form to form a recess)
    [89] Hereinafter, various forms of forming a plurality of recesses in each discharge cell 202 of the dielectric layer 106 will be described.
    [90] First, as shown in FIG. 3, the surface of the dielectric layer 106 is made into a textured surface.
    [91] Generally, a "texture structure" refers to a structure having pyramidal irregularities. For example, as shown in FIG. 4, the surface of the dielectric layer 106 has a structure in which pyramidal convex portions 302 are arranged in a matrix and concave portions 301 are formed between the convex portions 302. Conversely, a concave portion of a pyramid shape may be arranged in a matrix, and a convex portion may be formed between the concave portions, or both may be mixed.
    [92] Moreover, the shape of a convex part or a recessed part may not necessarily be a pyramid shape, but may be a hemispherical shape etc.
    [93] In addition, the magnitude | size of a convex part and / or a concave part does not necessarily need to be uniform, and may differ in size.
    [94] 1 micrometer-30 micrometers are suitable for the height of a convex part or the depth of a recessed part, Especially, 5 micrometers-20 micrometers are preferable, and 5 micrometers-10 micrometers are more preferable.
    [95] In addition, in the example shown in FIG. 3, although the texture structure is formed in the continuous area | region throughout the surface of the dielectric layer 106, you may form a texture structure only in the island-shaped area | region in each discharge cell.
    [96] When the texture structure is formed on the surface of the dielectric layer 106 as described above, a large number of discharge start points are dispersed in the discharge cells 202.
    [97] Therefore, discharge is initiated in the discharge cell 202 by being dispersed not only in the central portion but also in the peripheral portion, and once the discharge is started, the discharge rapidly diffuses through the recess. Therefore, a strong discharge is uniformly distributed over a wide range in the discharge cell.
    [98] In addition, these effects are not greatly damaged even if the positional relationship between the display electrodes 103a and 103b and the recessed portion 301 is slightly shifted, and the alignment of the two electrodes does not have to be strictly performed. .
    [99] Next, a groove is formed over a plurality of discharge cells, and a part of the groove is described as a recess.
    [100] 5A to 5E show grooves 401a, 401b to 405a and 405b formed in the dielectric layer 106 over a plurality of discharge cells.
    [101] The grooves 401a, 401b to 405a, 405b shown in Figs. 5A to 5E extend along the display electrodes 103a and 103b (row electrodes).
    [102] A portion of the grooves 401 to 405 correspond to the recesses 108 of the respective discharge cells 202.
    [103] However, the grooves 401a and 401b shown in Fig. 5A are straight lines parallel to the display electrodes 103a and 103b. Therefore, the distance between the groove 401a and the groove 401b in the row direction center portion 202a and the row direction peripheral portion 202b in the discharge cell 202 is the same.
    [104] On the other hand, the grooves 402a, 402b to 405a, 405b shown in Figs. 5B to 5D are all curved, but each has the following characteristics.
    [105] Among them, the grooves 402a and 402b shown in (b) and the grooves 404a and 404b shown in (d) approach each other in the row direction center portion 202a of the discharge cell and in the row direction peripheral portion 202b. Are spaced apart.
    [106] In this case, since the grooves approach each other near the row direction center portion 202a of the discharge gap, the discharge is initiated near the row direction center portion 202a, but is also strong in the row direction peripheral portion 202b along the groove. It spreads.
    [107] On the other hand, the grooves 403a and 403b shown in (c) and the grooves 405a and 405b shown in (e) are spaced apart from each other in the row direction center part 202a of the discharge cell, and the row direction peripheral part 202b. Homes are approaching each other.
    [108] In this case, since the grooves are spaced apart from each other near the row direction center portion 202a of the discharge gap, the discharge is dispersed and started not only in the row direction center portion 202a but also in the row direction peripheral portion 202b. Therefore, the origin of discharge is distributed over a wide range in the discharge cell.
    [109] In addition, although the grooves 402a and 403b shown in (b) and the grooves 403a and 403b shown in (c) are formed in a waveform shape which changes in a curved manner, the grooves 404a and 404b shown in (d) and The grooves 405a and 405b shown in (e) are formed in a zigzag shape.
    [110] In addition, each groove shown in Figs. 5A to 5E has an equal groove width (i.e., a uniform groove width) at the center portion and a peripheral portion, but the groove width is not equal at the center portion and the peripheral portion (i.e., the grooves). Width may be uneven).
    [111] Next, the first concave portion 501a, the second concave portion 501b to the first concave portion 505a, and the second concave portion 505b are discharge cells while referring to Figs. 6A to 6E. The form formed in island shape for every 202 is demonstrated. 6 (a) to 6 (e), only portions corresponding to one discharge cell 202 are shown.
    [112] The concave portions 501a and 501b shown in FIG. 6A are linear in parallel with the display electrodes 103a and 103b. Therefore, similarly to the first grooves 401a and the second grooves 401b, not only the row center portion 202a in the discharge cell 202 but also the recess portion 501a and the recess portion in the row direction peripheral portion 202b. The distance between 501b is the same.
    [113] In contrast, the recesses 502a, 502b to 505a, 505b shown in Figs. 6B to 6D are U-shaped or V-shaped, and the distance between the recesses varies depending on the case.
    [114] Among these, the recessed portions 502a and 502b shown in (b) and the recessed portions 504a and 504b shown in (d) are U-shaped or V-shaped, so that the valley side faces each other (the ends are opposed to each other). ) Is placed.
    [115] In this case, like the grooves 403a and 403b and the grooves 405a and 405b, the concave portions are spaced apart from each other in the row center portion 202a of the discharge cell and approach each other in the row peripheral portion 202b. The discharge is distributed and started not only in the central portion but also in the peripheral portion. Therefore, a strong discharge is distributed over a wide range in the discharge cell.
    [116] On the other hand, the recessed portions 503a and 503b shown in (c) and the recessed portions 505a and 505b shown in (e) are U-shaped or V-shaped and are arranged so that the mountain side (normal portion) faces each other.
    [117] In this case, the concave portions approach each other in the row direction center portion 202a of the discharge cell, and are spaced apart from each other in the row direction peripheral portion 202b, similarly to the grooves 402a and 402b and the grooves 404a and 404b. The initiation takes place in the center portion, but then a strong discharge diffuses in the periphery along the groove.
    [118] In addition, although the shape of the recessed part showed the linear shape, the U shape, and the V shape in FIG. 6, the shape of circular shape, an ellipse, a triangle, a rhombus, a polygon, a Y shape, T shape etc. can also be set. In addition, a 1st recessed part and a 2nd recessed part may not be the same shape.
    [119] In addition, in the above description, as shown in the first concave portion 108a and the second concave portion 108b of FIG. 2, the concave portions are disposed to be distributed on the first display electrode 103a side and the second display electrode 103b side. However, the display electrodes 103a and 103b may be disposed in a direction in which the display electrodes 103a and 103b extend. In this case, since the starting point of discharge in the discharge cell is dispersed in the direction orthogonal to the longitudinal direction of the discharge cell 202, the effect of improving the light emission luminance and light emission efficiency is obtained.
    [120] In the example shown in Figs. 5 and 6, the number of recesses formed in each discharge cell is two, but the same effect is obtained even when three or more are formed.
    [121] (Consideration of the depth of the recess)
    [122] With respect to the depth of the recessed portions shown in Figs. 5 and 6, if too shallow, the action of locally forming charges is not obtained, while if too deep, the address becomes difficult. In view of this point, a suitable depth is 5 micrometers-50 micrometers, Especially, the range of 10 micrometers-40 micrometers is preferable, and 20 micrometers-30 micrometers are still more preferable.
    [123] In addition, although the depth of each concave part may be set constant in a discharge cell, by changing the depth partially, discharge intensity | strength can be changed or the generation | occurrence | production form of discharge can be controlled.
    [124] For example, by locally deepening a part of the recessed portion, it is possible to easily form a discharge start at that part.
    [125] Second Embodiment
    [126] In this embodiment, recesses are formed on the surface of the dielectric layer 106 in a different form for each of the RGB color cells.
    [127] In FIG. 7A, grooves 601a and 601b are formed in the dielectric layer 106 so as to be parallel to the display electrode 103. The groove widths of the grooves 601a and 601b are red discharge cells 202R, It is set to become large in order of the green discharge cell 202G and the blue discharge cell 202B. In FIG. 7B, the areas of the island-shaped recesses 602a and 602b are set so as to increase in the order of the red discharge cells 202R, the green discharge cells 202G, and the blue discharge cells 202B. have.
    [128] In all, the area (volume) of the concave portion is set so as to increase in the order of the red discharge cell 202R, the green discharge cell 202G, and the blue discharge cell 202B.
    [129] The diffusion of discharge generated in each color discharge cell when the voltage is applied between the display electrodes 103a and 103b becomes larger as the area (volume) of the concave portion becomes larger. Thus, by adjusting the area (volume) of the concave portion as described above, Diffusion can be increased in order of red discharge cell 202R, green discharge cell 202G, and blue discharge cell 202B.
    [130] Of the RGB colors, blue (B) is the shortest wavelength and has the highest energy even at the same intensity. Therefore, when ultraviolet rays are irradiated to the respective RGB phosphors under the same conditions, the luminescence intensities of different colors cannot be obtained with the blue phosphors.
    [131] On the other hand, as shown to FIG.7 (a), (b), the balance of each color light emission amount can be adjusted by changing the area or volume of a recessed part.
    [132] In other words, the light emission amount of the blue cell is compensated for by a small amount, whereby the color temperature at the time of displaying white can be adjusted to a high level.
    [133] Moreover, in order to maintain the balance of the amount of emitted light of each RGB color, a method of increasing the color temperature by changing the spacing (cell pitch) of each RGB partition wall is known as the prior art, but the area (volume) of the concave portion as in the present embodiment is known. ), Even if each color cell width (cell pitch) is set equal, the amount of emitted light of each color of RGB can be maintained.
    [134] In the grooves 603a and 603b shown in FIG. 8, the gaps between the grooves 603a and 603b are widened in the order of the red discharge cell 202R, the green discharge cell 202G, and the blue discharge cell 202B. It is.
    [135] In this case, in the discharge cell 202R, the recess formed by the grooves 603a and 603b is located close to the discharge gap 201, but in the discharge cell 202G and the discharge cell 202B, the grooves 603a and 603b. The recess formed by the is spaced apart in order from the discharge gap 201.
    [136] As the position of the concave portion moves away from the discharge gap, the discharge spreads greatly when a voltage is applied between the display electrodes 103a and 103b, so that the discharge cells 202R, the discharge cells 202G, and the discharge cells 202B are in sequence. The discharge scale increases.
    [137] Therefore, as shown in FIG. 7, the balance of each color light emission amount can be adjusted.
    [138] In the above description, the shape of the recess is adjusted so that the spread of the discharge becomes larger in the order of RGB, but the spread of the discharge is not necessarily the order of the RGB, but may be adjusted according to the magnitude of the visible light conversion efficiency in the phosphor layer. That is, the shape of the concave portion may be adjusted so that the diffusion of the discharge is increased with respect to the discharge cells of a color having a small visible light conversion efficiency of the phosphor layer.
    [139] Third Embodiment
    [140] In this embodiment, the light emitting efficiency is improved by changing the thickness of the dielectric layer so as to focus light from the light shielding region to the light transmitting region.
    [141] In general, in the PDP, visible light generated in a cell is emitted to the outside through the front substrate, but the front substrate has a transmission region through which the visible light is easily transmitted and a shielding region that is difficult to transmit.
    [142] In the PDP shown in FIG. 9, specifically, the shielding area is an area in which the bus electrode 105 and the black stripe 701 made of an opaque metal are present, and the transmission area is another area.
    [143] In FIG. 9, the white arrow marks indicate the luminous flux of visible light generated in the discharge cell and passing through the front glass substrate 102 to the outside.
    [144] In this PDP, the surface of the dielectric layer 106 is bent so that the light beam 702a directed to the shielding region (the region where the bus electrode 105 or the black stripe 701 is arranged) is refracted toward the transmission region.
    [145] That is, the dielectric layer 106 has a lens shape for condensing visible light generated in the cell from the shielding region to the transmission region.
    [146] The protective layer 107 is bent along the surface of the dielectric layer 106 and covers it.
    [147] If the surface of the dielectric layer 106 is parallel to the front glass substrate 102, the light beam 702a is shielded from the bus electrode 105 or the black stripe 701, but the light beam 702a is transmitted as described above. By refracting, the amount of light blocked is suppressed, so that the luminous efficiency can be improved.
    [148] (Production method of PDP)
    [149] Hereinafter, the manufacturing method of the said PDP is demonstrated.
    [150] First, the method of manufacturing the front panel 101 will be described in particular a process of forming the dielectric layer 106 (transfer film production process, transfer process, firing process).
    [151] Electrode Formation Process:
    [152] As the front glass substrate 102, a glass plate manufactured by a float method is used. The transparent electrode 104 is formed on the front glass substrate 102 by a conventional thin film formation method.
    [153] The silver electrode precursor layer, which is a precursor of the bus electrode 105, is formed on the transparent electrode 104 using silver paste including silver powder, an organic binder, a glass frit, an organic solvent, and the like.
    [154] The silver paste may be coated and dried in a pattern shape of the bus electrode 105 using a screen printing method, or may be applied and dried using a screen printing method, a die coating method, or the like, followed by a photolithography method (or a lift). The patterning may be performed by the off method).
    [155] On the other hand, when using a silver electrode transfer film, the same component as the said silver paste is processed into a film form, and a silver electrode transfer film is produced, and this film is laminated | stacked on the transparent electrode 104, and a silver electrode precursor layer is formed.
    [156] The silver electrode precursor layer is not baked but is fired simultaneously with the dielectric precursor layer in the step of forming the next dielectric layer. However, you may move to the process of baking an electrode precursor and forming the next dielectric layer.
    [157] In addition, when forming Cr / Cu / Cr electrode, it forms using the method of depositing a thin film.
    [158] Transfer film production process:
    [159] First, a transfer film having a dielectric precursor layer is produced as follows.
    [160] A paste-like glass powder-containing composition (glass paste composition) containing a glass powder, a resin, and a solvent is prepared.
    [161] Glass powders used herein include PbO-B 2 O 3 -SiO 2 based, ZnO-B 2 O 3 -SiO 2 based, PbO-SiO 2 -Al 2 O 3 based, PbO-ZnO-B 2 O 3 -SiO 2 A system etc. are mentioned, It is preferable to use a softening point near the baking temperature. Ethyl cellulose, acrylic resin, etc. are mentioned as resin. Examples of the solvent include n-butyl acetate, BCA and terpineol.
    [162] Next, this glass paste composition is applied onto a supporting film and dried. As a result, a film made of a dielectric precursor is formed to produce a transfer film.
    [163] As a material used as a material of a support film, resin which has flexibility is preferable, For example, polyethylene, a polypropylene, polystyrene, polyimide, polyvinyl alcohol, polyvinyl chloride, etc. are mentioned, A support film The thickness of is 20-20 micrometers, for example.
    [164] In this application, a coating method by a roller coater, a coating method by a blade coater such as a doctor blade, a coating method by a curtain coater, or the like can be used.
    [165] By crimping and laminating a cover film made of a resin having flexibility on the surface of the dielectric precursor layer, it becomes easy to handle the transfer film.
    [166] In addition, it is preferable that the support film and the cover film be subjected to a releasing treatment on the surface so that they can be easily peeled off when transferring.
    [167] Transfer process:
    [168] Using the transfer film produced as described above, the dielectric precursor layer is thermally transferred onto the front glass substrate 102 on which the electrode precursor is formed in the above step, but the recess is formed by pressing the dielectric precursor layer before or after the transfer step. .
    [169] Here, "forming recesses" means "partially varying the thickness of the layer," which not only forms grooves or recesses in the layer, but also forms a texture structure and the structure of the layer as in the third embodiment. It also includes changing the thickness.
    [170] The dielectric precursor layer of the transfer film produced as described above has soft clay-like adhesiveness and appropriate shape retention.
    [171] Therefore, the dielectric precursor layer is easily thermally transferred by thermocompression bonding on a glass substrate, and concave portions can be formed by pressing a template having a mold or a projection onto the dielectric precursor layer.
    [172] At this mold pressure, a template having a convex portion having the same shape as that of the concave portion to be formed in the dielectric precursor layer is used.
    [173] However, since the dielectric precursor layer shrinks by firing, and the recess also contracts accordingly, the depth of the recess formed by the mold pressure in the dielectric precursor layer is set in consideration of this shrinkage rate.
    [174] In addition, by pressing the dielectric precursor layer on the support film, it is possible to prevent dust from entering the dielectric precursor layer when the recess is formed.
    [175] Here, since the support film also has flexibility, it is possible to form a recess in the dielectric precursor layer even if the dielectric precursor layer is pressed on the support film.
    [176] This transfer and mold pressing step will be described in detail.
    [177] 10 (a) and 10 (b) are schematic configuration diagrams of a lamination apparatus that performs both mold pressure and transfer.
    [178] In addition to the heating roller 810, the lamination apparatus is provided with a pressing roller 820, and the front glass substrate 102 on which the transfer film 800 and the electrode precursor are formed is transferred.
    [179] The transferred transfer film 800 is a cover film peeled off, and the dielectric precursor layer 802 is formed on the support film 801.
    [180] Then, while the transfer film 800 is overlapped with the surface of the dielectric precursor layer 802 on the surface where the electrode precursor of the front glass substrate 102 is formed, the thermocompression bonding is performed by the heating roller 810 on the support film 801. As a result, the dielectric precursor layer 802 is transferred onto the front glass substrate 102.
    [181] As thermal transfer conditions, for example, the surface temperature of a heating roller is 60-120 degreeC, the roller pressure is 1-5 kg / cm <2> , and the moving speed of a heating roller is 0.2-10.0 m / min. The front glass substrate 102 to be supplied may be preheated to, for example, 40 to 100 ° C.
    [182] In the lamination apparatus of FIG. 10A, after the dielectric precursor layer 802 is transferred to the heating roller 810, the mold roller 820 is transferred to the dielectric precursor layer 802 transferred onto the front glass substrate 102. Is pressed to form a recess in the surface of the dielectric precursor layer 802. In addition, the mold pressure roller 820 does not need to be heated.
    [183] As shown in FIG. 11, in the press roller 820, the convex part 822 of the same shape as the recessed part to be formed in the surface of the dielectric precursor layer 802 is formed.
    [184] As shown in FIG. 11, the annular convex part 822 is formed in the rotation direction on the outer peripheral surface of the cylindrical roller 821. As shown in FIG. When the mold pressing roller 820 is used, parallel grooves as shown in Fig. 5A can be formed, but the convex portion 822 is curved in a wave shape or a zigzag shape, so that Fig. 5B is used. Grooves having a shape as shown in (c) or (d) and (e) can also be formed. Moreover, by forming the convex part 822 in island shape, the island-shaped recessed part as shown in FIG. 6 can be formed.
    [185] At this mold pressure, the position where the convex portion 822 presses the dielectric precursor layer 602 so that the position of the recess formed in the dielectric precursor layer 602 and the display electrodes 103a and 103b become a predetermined positional relationship. The display electrodes 103a and 103b are aligned with each other.
    [186] Moreover, when forming a recessed part by this method, rather than forming an island-shaped recessed part like FIG. 6, it is easier to remove a template after forming a recessed part with a mold pressure as shown in FIG. Positioning is also easy, and is advantageous in manufacturing.
    [187] Peeling of the support film 801 may be performed before or after the mold pressure.
    [188] For example, as shown in FIG. 10A, the mold pressure by the mold roller 820 may be performed on the support film 801, and the support film 801 may be peeled off immediately before the next firing step. In this case, since the surface of the dielectric precursor layer 802 is protected by the support film 801, there is an advantage that it is not easily affected by foreign matter.
    [189] On the other hand, after peeling the supporting film 801 from the transferred dielectric precursor layer 802, the pressing pressure by the pressing roller 820 may be performed. In this case, since the pressing is performed directly without interposing the supporting film 801, the recessed portion The shape can be formed more precisely.
    [190] On the other hand, in the lamination apparatus shown in Fig. 10B, the pressing roller 820 is disposed in front of the heating roller 810, and the recess is formed by the pressing roller 820 with respect to the dielectric precursor layer of the transfer film. Thermal transfer is performed on the glass substrate 102.
    [191] As shown in FIG. 10A, the thickness of the front glass substrate 102 in the case of forming a recess with the mold roller 820 after transferring the dielectric precursor layer 802 on the front glass substrate 102 is shown. If it is not constant, it is difficult to form the concave portion uniformly as a whole, but as shown in FIG. 10 (b), when the concave portion is formed by the pressing roller 820 before the transfer film, the front glass substrate 102 is used. Even if the thickness of is not constant, it is possible to form the recesses uniformly as a whole.
    [192] Moreover, although the example which attached the press roller 820 to the lamination apparatus was shown here, the recessed part was formed with the press roller 820 with respect to the transfer film beforehand, The transfer film which formed the recessed part was supplied to the lamination apparatus, The glass substrate 102 may be thermally transferred.
    [193] In addition, as a method of forming a recess in the dielectric precursor layer in the transfer step, the following method is also possible.
    [194] In the apparatus of Figs. 10A and 10B, the heating roller 810 and the pressing roller 820 are provided separately, but by forming a convex portion in the transfer roller itself, it is also possible to have a function as the pressing roller. have.
    [195] In the step of thermally transferring the dielectric precursor layer to the front glass substrate 102, the recess is not formed in the dielectric precursor layer, and as described later, the recess is removed when the supporting film is removed immediately before firing the dielectric precursor layer. It may be formed.
    [196] In the above description, the recess is formed in the dielectric precursor layer by using a pressure roller, but the recess may be formed by using a plate-shaped template. However, considering that the transfer film is continuously supplied to form concave portions continuously, it is easier to use a mold pressure roller. In addition, in the case of using the pressing roller, the concave portion can be formed with a uniform depth even if the front glass substrate 102 or the dielectric precursor layer is not constant.
    [197] Firing process:
    [198] The front glass substrate 102 having the pressed dielectric precursor layer 802 is put in a firing furnace and fired.
    [199] However, when the support film 801 covers the dielectric precursor layer 802, an apparatus (support film peeling apparatus) for peeling off the support film 801 is provided at the inlet of the firing furnace, and then the substrate is removed after the support film is peeled off. Is put in a kiln and fired.
    [200] In the kiln, the substrate is left for several minutes to several minutes at a temperature equal to or more than the softening point of the glass component contained in the electrode precursor and the dielectric precursor layer, and then the temperature is lowered. By this operation, the electrode precursor is changed into an electrode, and the dielectric precursor layer is changed into a dielectric layer.
    [201] As a result, a dielectric layer 106 having a recess is formed on the front glass substrate 102.
    [202] Protective layer formation process:
    [203] A protective layer 107 made of Mg0 is formed on the dielectric layer 106 by electron beam deposition or the like. The protective layer is also formed on the inner surface of the recess of the dielectric layer 106.
    [204] The front panel is completed by the above process.
    [205] Manufacturing method of back panel:
    [206] The address electrode 113 is formed by screen printing and then firing the silver electrode paste on the back glass substrate 112, and the dielectric layer 114 is formed by applying and baking the dielectric paste by screen printing.
    [207] The partition wall 115 is formed on the dielectric layer 114. The partition wall 115 is formed by applying a glass paste for partition walls by screen printing and then baking or forming an entire film, followed by drying, using photolithography and sandblasting.
    [208] Each color phosphor paste (or phosphor ink) of red, green, and blue is prepared, and applied to the gap between the partition walls 115, and fired in air to form each color phosphor layer 116. The back panel 111 is completed by the above process.
    [209] The front panel 101 and the back panel 111 manufactured as described above are aligned to overlap each other so that the display electrodes 103a and 103b and the address electrode 113 intersect, and the peripheral portion is sealed with a sealing material. Then, gas is exhausted from the internal space partitioned by the partition wall 115, and then, discharge gas such as Ne-Xe is sealed to seal the internal space. This completes the PDP.
    [210] (About the effect by this manufacturing method)
    [211] In the above production method, by adjusting the convex portion shape of the mold pressing roller 820 to be used, the recessed portion having the shape shown in FIGS. 5 to 8 and the texture structure shown in FIGS. 3 and 4 can be formed in the dielectric layer. 9, the thickness of a dielectric layer can also be changed.
    [212] In particular, the texture structure can be easily formed by using a method of pressing with a pressing roller.
    [213] When the above-mentioned mold pressing method is used, the shape of the concave portion formed on the surface of the dielectric layer is not limited to that shown in Figs. 3 to 8 but can be formed in any shape. The number of recesses in the cell is not limited to two, but can be formed in any number of one or more.
    [214] As described above, according to the present manufacturing method, recesses can be formed on the surface of the dielectric layer with a relatively low number of steps and a high production yield.
    [215] That is, as a method of partially varying the film thickness of the dielectric layer, first, the dielectric glass paste is uniformly applied to the entire region, and the dielectric glass paste is applied to the regions other than the region where the recesses are to be formed by screen printing or the like. There is also a method of patterning.
    [216] In this method, however, the application of the dielectric glass paste needs to be performed twice, thereby increasing the cost.
    [217] In addition, when the pattern is applied using the screen printing method, the shape of the concave portion formed is deformed due to expansion or deterioration of the screen plate, or variations in the coating state of the paste occur due to the change of the characteristics of the glass paste. This gets worse.
    [218] Moreover, in order to form a recessed part in the surface of a dielectric layer, the method of patterning a dielectric precursor layer can also be used by removing the part which wants to form the recessed part of a dielectric precursor layer using the photolithographic method by developing. In this method, since it is difficult to remove a minute part by image development, it is difficult to form a texture structure and the island-shaped recessed part exactly shown in FIG. 6, and manufacturing defects are easy to produce.
    [219] On the other hand, according to the method of this embodiment, the number of application of the dielectric glass paste composition is completed once, and since a constant recess is formed by the mold pressure, the production yield is good, and the recess of the detailed shape can be formed relatively accurately. have. Therefore, manufacturing yield becomes favorable.
    [220] Therefore, a PDP having recesses formed on the surface of the dielectric layer can be manufactured at a relatively low cost.
    [221] (Variation of Method of Forming Concave in Dielectric Precursor Layer)
    [222] In the above description, a pressing roller is provided in the transfer device for transferring the transfer film onto the substrate, and the recess roller is used to form the recess in the dielectric precursor layer. However, the following method is used as a method of forming the recess in the dielectric precursor layer. It may be.
    [223] As a device separate from the transfer apparatus, a recessed portion may be formed in the transfer film by using a pressure roller.
    [224] In the step of transferring the dielectric precursor layer onto the substrate, a mold pressing roller is provided in the peeling apparatus used in the firing step without forming a recess in the dielectric precursor layer, and immediately before the supporting film on the dielectric precursor layer transferred to the substrate is peeled off. Or you may form a recessed part in the surface of the said dielectric precursor layer with a press roller immediately after it.
    [225] The PDP of the present invention can be used for display devices such as computers and televisions, especially large display devices.
    权利要求:
    Claims (31)
    [1" claim-type="Currently amended] The first substrate and the second substrate are installed side by side at intervals,
    On the opposite surface of the first substrate, a pair of first display electrodes and second display electrodes and a dielectric layer covering the first display electrode and the second display electrode pair are formed.
    A phosphor layer is formed on the opposite surface of the second substrate,
    A plasma display panel in which a plurality of discharge cells are formed along the pair of first and second display electrodes.
    And two or more recesses including a first recess and a second recess in each of the discharge cells are formed on a surface of the dielectric layer.
    [2" claim-type="Currently amended] The method of claim 1,
    And a surface of the dielectric layer has a matte texture structure.
    [3" claim-type="Currently amended] The method of claim 1,
    And wherein the first concave portion and the second concave portion are distributed to the first display electrode side and the second display electrode side via the center portion of the discharge cell in each of the discharge cells.
    [4" claim-type="Currently amended] The method of claim 1,
    First and second grooves are formed on a surface of the dielectric layer over a plurality of discharge cells along a direction in which the first and second display electrodes extend.
    A portion of the first grooves and the second grooves are the first recesses and the second recesses.
    [5" claim-type="Currently amended] The method of claim 4, wherein
    And the first groove and the second groove are formed in a wave shape or a zigzag shape, respectively.
    [6" claim-type="Currently amended] The method of claim 3,
    And the first recess and the second recess are formed in island shapes in each of the discharge cells.
    [7" claim-type="Currently amended] The method of claim 6,
    The first and second concave portions are U-shaped or V-shaped, and the end portions or the top portions are arranged so that their ends face each other.
    [8" claim-type="Currently amended] The method of claim 3,
    The peripheral portion of the first recessed portion and the second recessed portion is larger in the peripheral portion than the central portion of each discharge cell in the direction in which the first display electrode and the second display electrode extend.
    [9" claim-type="Currently amended] The method of claim 1,
    Wherein the first concave portion and the second concave portion are distributed in the discharge cells in a direction in which the first display electrode and the second display electrode extend through the center portion of the discharge cell. Display panel.
    [10" claim-type="Currently amended] The method of claim 9,
    First and second grooves are formed on the surface of the dielectric layer over a plurality of discharge cells in a direction orthogonal to a direction in which the first and second display electrodes extend.
    And a part of the first groove and the second groove is the first recess and the second recess.
    [11" claim-type="Currently amended] The method of claim 9,
    And the first recess and the second recess are formed in island shapes in each of the discharge cells.
    [12" claim-type="Currently amended] The method of claim 1,
    And at least one of the first concave portion and the second concave portion has regions having different depths therein.
    [13" claim-type="Currently amended] The method of claim 1,
    The discharge cell is formed with a phosphor layer of a color selected from a plurality of colors,
    And the first concave portion and the second concave portion differ in shape for each color of the phosphor layer in the corresponding discharge cell.
    [14" claim-type="Currently amended] The method of claim 13,
    The discharge cell is formed with a phosphor layer of a color selected from RGB,
    The area of the first concave portion and the second concave portion formed in the discharge cell is that the color of the phosphor layer formed in the discharge cell is increased in the order of RGB.
    [15" claim-type="Currently amended] The method of claim 13,
    The discharge cell is formed with a phosphor layer of a color selected from RGB,
    Wherein the color of the phosphor layer formed in the discharge cell is increased in the order of RGB in the interval between the first recess and the second recess in each of the discharge cells.
    [16" claim-type="Currently amended] The front and back boards are installed side by side with a gap,
    On the opposite surface of the front substrate, a display electrode pair and a dielectric layer covering the display electrode pair are formed,
    A plurality of discharge cells are formed along the display electrode pairs,
    A plasma display panel having a front region of each discharge cell having a transmission region that is easy to transmit visible light emitted from the discharge cell and a shielding area that is difficult to transmit the visible light.
    And the dielectric layer has a thickness varying from area to area so as to refract the light beam generated in the discharge cell toward the shielding area in the transmission area.
    [17" claim-type="Currently amended] The method of claim 16,
    And said dielectric layer is formed in the shape of a lens for condensing light generated in said discharge cell from said light shielding zone to a light transmission region.
    [18" claim-type="Currently amended] A first step of forming a dielectric layer by covering the display electrode on a first substrate on which a plurality of pairs of display electrodes are disposed;
    A method of manufacturing a plasma display panel comprising a second step of side-by-side installation of a second substrate on the side where the dielectric layer of the first substrate is formed,
    The first step,
    A transfer film manufacturing step of forming a transfer film by forming a dielectric precursor layer on the support film;
    Forming a recess in the dielectric precursor layer of the transfer film;
    And after the recess forming step, transferring the dielectric precursor layer of the transfer film onto the first substrate.
    [19" claim-type="Currently amended] The method of claim 18,
    In the recess forming step, the recess is formed by pressing a base having a convex shape on the surface of the transfer film.
    [20" claim-type="Currently amended] The method of claim 19,
    And the base portion is a flat plate.
    [21" claim-type="Currently amended] The method of claim 19,
    And the base portion is in the shape of a roller.
    [22" claim-type="Currently amended] A first step of forming a dielectric layer by covering the display electrode on a first substrate on which a plurality of pairs of display electrodes are disposed;
    A method of manufacturing a plasma display panel comprising a second step of side-by-side installation of a second substrate on the side where the dielectric layer of the first substrate is formed,
    The first step,
    A transfer film manufacturing step of forming a transfer film by forming a dielectric precursor layer on the support film;
    A transfer step of transferring the dielectric precursor layer of the transfer film onto the first substrate;
    And forming a recess in the dielectric precursor layer transferred on the first substrate.
    [23" claim-type="Currently amended] The method of claim 22,
    In the recess forming step, the recess is formed by pressing a base having a convex portion on the surface of the transferred dielectric precursor layer.
    [24" claim-type="Currently amended] The method of claim 23, wherein
    And the base portion is a flat plate.
    [25" claim-type="Currently amended] The method of claim 23, wherein
    And the base portion is in the shape of a roller.
    [26" claim-type="Currently amended] Used to form a dielectric layer of a plasma display panel,
    As a transfer film having a dielectric precursor layer composed of a dielectric precursor comprising a glass powder and a resin on a support film,
    The dielectric precursor layer is a transfer film, characterized in that the recess is formed in accordance with the position corresponding to each discharge cell.
    [27" claim-type="Currently amended] A method of manufacturing a transfer film used to form a dielectric layer of a plasma display panel,
    A dielectric precursor layer forming step of forming a dielectric precursor layer formed of a dielectric composition comprising a glass powder and a resin on a support film;
    And a recess forming step of forming recesses on one or both surfaces of the dielectric precursor layer.
    [28" claim-type="Currently amended] A laminating apparatus for laminating a transfer film having a dielectric precursor layer for forming a dielectric layer of a plasma display panel on a substrate,
    Laminating apparatus, characterized in that provided with a roller or a plate having a projection for forming a recess on the surface of the transfer film.
    [29" claim-type="Currently amended] A transfer film producing apparatus for forming a dielectric precursor layer for forming a dielectric layer of a plasma display panel on a support film,
    And a roller or flat plate having projections for forming a recess on the surface of the dielectric precursor layer.
    [30" claim-type="Currently amended] Used to form a dielectric layer of a plasma display panel,
    An apparatus for removing a film covering a dielectric precursor layer made of a dielectric precursor comprising a glass powder and a resin,
    An apparatus for removing a film, comprising a roller or a flat plate having projections for creating a recess on the surface of the dielectric precursor layer.
    [31" claim-type="Currently amended] A plasma display panel produced by the method for manufacturing a plasma display panel according to any one of claims 18 to 25.
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    同族专利:
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    JP2003203573A|2003-07-18|
    WO2002097846A1|2002-12-05|
    CN1529896A|2004-09-15|
    JP3442069B2|2003-09-02|
    KR100859056B1|2008-09-17|
    JP3957641B2|2007-08-15|
    CN1295735C|2007-01-17|
    JP2007123292A|2007-05-17|
    JP3957739B2|2007-08-15|
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2001-05-28|Priority to JP2001158716
    2001-05-28|Priority to JPJP-P-2001-00158717
    2001-05-28|Priority to JPJP-P-2001-00158716
    2001-05-28|Priority to JP2001158717
    2002-05-27|Application filed by 마츠시타 덴끼 산교 가부시키가이샤
    2002-05-27|Priority to PCT/JP2002/005100
    2003-12-31|Publication of KR20030097903A
    2008-09-17|Application granted
    2008-09-17|Publication of KR100859056B1
    优先权:
    申请号 | 申请日 | 专利标题
    JP2001158716|2001-05-28|
    JPJP-P-2001-00158717|2001-05-28|
    JPJP-P-2001-00158716|2001-05-28|
    JP2001158717|2001-05-28|
    PCT/JP2002/005100|WO2002097846A1|2001-05-28|2002-05-27|Plasma display panel, its manufacturing method, and transfer film|
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