• 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:
    BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image display device such as a color television, and more particularly, to an electrode support structure of a color flat panel display device which can reduce the assembly process and material cost by simplifying the electrode support structure. Conventionally, in order to install the electrode unit in the rear container, the studs are bonded using frit glass, and then the long side frame is fixed by welding to the studs using a welding piece. Increasing tolerances due to assembly may result in deterioration of product quality. In the present invention, an image display device comprising a back electrode, an electron source for generating electrons, an extraction electrode, a control electrode, a focusing electrode, and a plurality of deflection electrodes in a vacuum container, which is fixedly installed in a front container or a rear container of the image display device. By forming and installing the electrode support structure 200 to support a plurality of unit electrodes 120 to be integrally attached to the integral electrode support structure 200 as a binder or using a frit glass 210 front container ( 110 or one electrode support structure similar to the electrode size of the integrated electrode support structure 200 to prevent sagging of the electrode unit 120 after being fused to the rear container 100 or a predetermined length shorter than the electrode size One or more of the electrode support structure 200 is installed.
    公开号:KR20030066908A
    申请号:KR1020020006654
    申请日:2002-02-06
    公开日:2003-08-14
    发明作者:박기범
    申请人:엘지.필립스디스플레이(주)；
    IPC主号:
    专利说明:

    Electrode support structure of color flat display device
    [19] BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image display device such as a color television, and more particularly, to an electrode support structure of a color flat panel display device which can reduce the assembly process and material cost by simplifying the electrode support structure.
    [20] Conventionally, a CRT is mainly used as a color television image display element, and a CRT has a considerably longer depth than a screen, making it impossible to produce a thin television receiver.
    [21] Therefore, EL display elements, plasma display elements, and the like have been developed as flat panel display elements, all of which are insufficient in terms of performance such as brightness, contrast, and color reproducibility.
    [22] Japanese Patent Laid-Open Nos. Hei 3-184247 and Hei 3--205751 display a screen on a screen in order to display a high quality image comparable to a CRT on a flat panel device using an electron beam. The image display which divides | segments into image divisions, and deflects-scans an electron beam for each division, emits fluorescent substance, and comprises a color television image as a whole is shown.
    [23] Hereinafter, an example of the above-described prior art image display apparatus will be described with reference to FIG. 1 showing the structure of a general image display apparatus.
    [24] As shown in FIG. 1, the image display apparatus of the prior art embodiment includes a back electrode 2, a linear cathode 3 as an electron beam source, an electron beam extraction electrode 4, a control electrode 5, and a focusing electrode 6 The horizontal deflection electrode 7 and the vertical deflection electrode 8 and these components are housed in the front and rear containers 1 and 9 which are glass containers, and the inside of the container is vacuumed.
    [25] The front cathode 3 is provided in the horizontal direction so as to generate an electron beam uniformly distributed in the horizontal direction, and is provided with a plurality of keys (only 4 are shown in the figure) in the vertical direction while maintaining a predetermined interval.
    [26] These linear cathodes 3 are formed by coating an oxide cathode material on the surface of a tungsten wire, for example.
    [27] The back electrode 2 is made of a flat conductive material and is provided in parallel to the linear cathode.
    [28] The lead-out electrode 4 is positioned in the screen direction above the line cathode 3 and faces a row of through-holes facing the back electrode 2 and provided at predetermined intervals in the horizontal direction, on a horizontal line facing the line cathode 3. The branch is made of a conductive plate.
    [29] The control electrodes 5 are arranged in rows of thin and long conductive plates in a vertical direction with a predetermined spacing at positions facing each other at each of the through holes in the lead-out electrode 4, and are drawn out in each conductive plate. The through holes of the electrode 4 have through holes of the same shape at positions opposite to each other.
    [30] The focusing electrode 6 is a conductive plate having a through hole at a position opposite to each through hole of the control electrode 5.
    [31] The horizontal deflection electrode 7 is constituted by a conductive plate connected to two blade-shaped ends which are interlocked with each other at predetermined intervals on the same plane.
    [32] The vertical deflection electrode 8 is in a state in which the blazing conductive plates of two conductive plates connected at the ends thereof are engaged with each other at predetermined intervals on the same plane.
    [33] The screen is constructed by applying a phosphor that emits light by irradiation of an electron beam to the inner surface of the front container 9, and a metal backing layer (not shown) is added thereon.
    [34] In addition, the above-mentioned extraction electrode 4, control electrode 5, focusing electrode 6, horizontal deflection electrode 7, and vertical deflection electrode 8 are joined with an insulating adhesive (not shown), respectively.
    [35] It looks at the operating state of the prior art having the above configuration.
    [36] First, the heater cathode is heated by flowing a heater current to facilitate electron emission. In a heated state, an appropriate voltage is applied to the back electrode 2, the line cathode 3, and the lead-out electrode 4 to emit an electron beam on the sheet from the surface of the line cathode 3.
    [37] The electron beam on the sheet is divided into a plurality of through holes of the lead-out electrode 4 to form a plurality of electron beams 11 (only one electron beam is shown in FIG. 1).
    [38] This electron beam flow 11 is controlled by the control electrode 5 in correspondence with the image signal applied to the control electrode 5, and the amount of passage is individually adjusted.
    [39] Next, the electron beam passing through the control electrode 5 is focused and shaped by the electrostatic lens effect of the through hole of the focusing electrode 6, and then the conductive plates and the vertical deflection electrodes 8 adjacent to each other of the horizontal deflection electrode 7 are formed. Are deflected horizontally and vertically by the potential difference applied to the conductive plates adjacent to each other.
    [40] In addition, a high voltage (for example, 10 mA) is applied to the metal back layer of the screen, and the electron beam is accelerated to high energy to impinge on the metal back and emit phosphors.
    [41] When the television screen is divided into subdivisions 10 on a matrix, and the subdivisions are aggregated, the electron beams are separated by matching the separated electron beams one by one for each subdivision as described above. It is possible to project the whole screen onto the screen by deflecting and scanning only within the area. In addition, it is possible to reproduce a television moving picture by controlling the R, G, and B video signals corresponding to each image by the control electrode 5.
    [42] In the related art, in order to install the electrode unit 20 on the rear container 1 as shown in FIGS. 2 and 3, the long side frame 32 is welded after the stud 30 is adhered using the fleece glass 31. Fix to the stud 30 by using a).
    [43] The reason why the long side frame 32 is installed is used to fasten using bolts 21 for preventing sagging and fixing of the electrode unit 20 as the size of the electrode unit 20 increases, and the electrode unit ( 20) In order to prevent conduction due to the attachment of the long side frame 32, an insulating layer for insulation should be provided on the electrode unit installation side of the long side frame 32.
    [44] However, in such a structure, the complexity of the process according to a large number of parts and the increase in tolerance due to assembly that may occur during assembly may be a factor that degrades product quality.
    [45] In order to solve the above problems, in the present invention, a color flat display device capable of reducing quality deterioration by reducing tolerances generated during assembly due to the simplification of the electrode unit support structure and the subsequent process in the rear container. The purpose is to provide an electrode support structure.
    [46] .
    [1] 1 is a block diagram of a general image display apparatus.
    [2] 2 is a cross-sectional view of a conventional image display device electrode coupling state.
    [3] Figure 3 is a cross-sectional view of the electrode support structure of the prior art.
    [4] 4 is a cross-sectional view of an electrode support structure according to the present invention;
    [5] Figure 4 (a) is installed in the rear container 100,
    [6] Figure 4 (b) shows a state installed in the front container (110).
    [7] 5 is a perspective view showing a state in which a plurality of electrode support structure is installed in the long side, short side as an embodiment of the present invention.
    [8] 6 is a perspective view showing a state in which the electrode support structure is installed only on the long side as another embodiment of the present invention.
    [9] 7 is a perspective view showing a state in which the electrode support structure is installed on the long side as another embodiment of the present invention.
    [10] * Explanation of symbols for the main parts of the drawings
    [11] 100: rear container 110: front container
    [12] 120: electrode unit 130: long side
    [13] 131: short side 140: linear cathode
    [14] 150: bolts
    [15] 200: electrode support structure 210: frit glass
    [16] 220: positive electrode support structure 230: long side electrode support structure
    [17] 231: short-side electrode support structure 240: insulating material
    [18] 250: bolt tap
    [47] In order to achieve the above object, the present invention provides an image display device comprising a back electrode, an electron source for generating electrons, an extraction electrode, a control electrode, a focusing electrode, and a plurality of deflection electrodes in a vacuum container. An electrode support structure for supporting a plurality of unit electrodes fixedly installed is formed in one piece, and the electrode support structure is attached to a front container or a rear container.
    [48] Alternatively, in the present invention, the electrode support structure is installed on only one side of the long side or the short side of the front and rear containers, or is installed on both the long side and the short side of the container, the long side electrode support structure installed on the long side and the short side electrode support installed on the short side Characterized in that the structure is made in one piece.
    [49] One or more electrode support structures each smaller than the unit electrode are installed on the long side or the short side, and the electrode support structure has a cylindrical shape or a square bar shape.
    [50] The electrode support structure is characterized in that the concave, convex portion is present.
    [51] The coefficient of thermal expansion among the physical properties of the electrode support structure is characterized in that less than ± 5% compared to the material to which the electrode support structure is attached.
    [52] The upper surface of the electrode support structure is formed with a bolt tab for fastening the bolt for fixing the electrode, the surface facing the unit electrode of the electrode support structure is an insulating material made of ceramic coating or plasma spray coating for insulation Characterized in that it is installed.
    [53] Alternatively, the insulating material is a solid material, characterized in that provided between the electrode support structure and the unit electrode.
    [54] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
    [55] Figure 4 is a cross-sectional view of the electrode support structure according to the present invention, Figure 4 (a) is a state installed in the rear container 100, Figure 4 (b) shows a state installed in the front container 110.
    [56] The integrated electrode support structure 200 is attached to the front container 110 or the rear container 100 using a frit class 210 or attached to the front electrode 110 or the rear container 100 to prevent the electrode unit 120 from sagging. The structure 200 may be provided with one electrode support structure similar to the electrode size, or one or more electrode support structures 200 having a predetermined length shorter than the electrode size may be installed.
    [57] 5, the electrode support structure 200 is formed on the long side 130 and the short side 131 in order to improve the distance between the electrodes in the inner surface of the front container 110 or the rear container 100 as shown in FIG. 5. It is to separate and install more than one.
    [58] Between the rear container 100 and the electrode unit 120, a cathode cathode 140 is installed to emit electrons.
    [59] At this time, in order to install the linear cathode 140, there should be a linear cathode support structure 220.
    [60] When the linear cathode support structure 220 is installed in the rear container 100, when the linear cathode support structure 220 is installed outside the short side electrode support structure 230, the front cathode 220 and the short side electrode are provided. Since the support structure 231 may cause interference, as shown in FIG. 5, the short side electrode support may be blanked in a portion where the front cathode 140 passes in the short side electrode support structure 231 so as to reduce interference with the front cathode 140. The structure 231 has a convex, concave shape.
    [61] The electrode support structure 200 passes through a thermal process of 500 ° C. in order to attach to the front glass 110 or the rear glass 100 by using an adhesive or frit glass. The front glass 100 and the rear glass 110 and If the difference in the coefficient of thermal expansion of the electrode support structure 200 is more than ± 5%, cracks occur in the front glass 110 or the rear glass 100 to increase the defective rate of the product.
    [62] When the electrode unit 120 is installed in the integrated electrode support structure 200, a constant voltage is applied to the electrode. When the voltage is connected to the integrated electrode support structure 200, the quality of the display element is deteriorated. In order to install the on the integrated electrode support structure 200, the insulating material 240 should be attached to the surface of the integrated electrode support structure 200 in contact with the electrode unit 120.
    [63] As the insulating material 240, an integral electrode support structure 200 and an electrode unit are attached to a material having excellent insulation, such as ceramics, by coating or plasma spraying, or after molding a material such as ceramics through a mold or the like. It can be assembled after insertion between the 120.
    [64] When the electrode unit 120 is to be fixed by fastening the bolt 150 by the method for fixed installation on the electrode support structure 200, the bolt 150 on the surface in contact with the electrode unit 120 in the electrode support structure 200 By installing a bolt tab 250 to fasten the electrode unit 120 can be easily installed.
    [65] Looking at a specific embodiment of the present invention through the drawings, Figure 6 is a long side 130 by installing one long side electrode support structure 230 on the long side 130, as shown to install the electrode support structure only on the long side. Compared to the short side 131, a weak problem for deflection may be prevented.
    [66] In another embodiment, FIG. 7 illustrates a state in which the electrode support structure is installed on both the long side and the short side. When the inch (size) of the screen increases and the electrode size increases, deflection occurs on the short side 131. In order to prevent this, both the long side electrode support structure 230 and the short side electrode support structure 231 may be installed.
    [67] In this case, the long side electrode support structure 230 and the short side electrode support structure 231 may be formed in one unit and installed in the front container 110 or the rear container 100.
    [68] In another embodiment, the long side electrode support structure 230 and the short side electrode support structure 231 may be separately assembled and installed.
    [69] As such, the present invention is to install the integral electrode support structure having a certain length, attach the insulating material and install the bolt tab for the electrode unit installation, so that one part is responsible for several functions to reduce the number of parts and the process accordingly It is a very useful technology to improve the quality of the display device by simplifying the assembly and reducing the assembly tolerance that occurs during assembly.
    权利要求:
    Claims (13)
    [1" claim-type="Currently amended] An image display device comprising a back electrode, an electron source for generating electrons, an extraction electrode, a control electrode, a focusing electrode, and a plurality of deflection electrodes in a vacuum container,
    Electrode support structure of the color flat panel display device, characterized in that the electrode support structure 200 for supporting a plurality of unit electrodes 120 fixedly installed in the image display device is formed in one piece.
    [2" claim-type="Currently amended] The method of claim 1,
    The electrode support structure 200 is an electrode support structure of a color flat panel display device, characterized in that attached to the front container 110 or the rear container (100).
    [3" claim-type="Currently amended] The method of claim 1,
    The electrode support structure 200 is an electrode support structure of a color flat panel display device, characterized in that installed only on either side of the long side 130 or short side 131 of the container (100, 110).
    [4" claim-type="Currently amended] The method of claim 1,
    The electrode support structure 200 is an electrode support structure of a color flat panel display device, characterized in that installed on both the long side 130 and the short side 131 of the container (100, 110).
    [5" claim-type="Currently amended] The method according to claim 1 or 2 or 4,
    The electrode support structure 200 includes a long side electrode support structure 230 installed on the long side 130 and a short side electrode support structure 231 installed on the short side 131 are integrally formed. Electrode support structure.
    [6" claim-type="Currently amended] The method of claim 5,
    Electrode support structure of a color flat panel display device, characterized in that at least one electrode support structure 200, each smaller than the electrode size is installed on the long side 130 or short side (131).
    [7" claim-type="Currently amended] The method of claim 5,
    The electrode support structure 200 is an electrode support structure of a color flat panel display device, characterized in that the cylindrical or rectangular bar shape.
    [8" claim-type="Currently amended] The method of claim 7, wherein
    The electrode support structure 200 is an electrode support structure of a color flat panel display device, characterized in that the concave, convex portion is present.
    [9" claim-type="Currently amended] The method of claim 1,
    The thermal expansion coefficient of the electrode support structure (200) in the physical properties of the electrode support structure of the color flat display device, characterized in that within ± 5% compared to the material to which the electrode support structure is attached.
    [10" claim-type="Currently amended] The method of claim 1,
    The electrode support structure of the color flat display device, characterized in that the upper surface portion of the electrode support structure 200 is formed with a bolt tab 250 for fastening the bolt 150 for fixing the electrode.
    [11" claim-type="Currently amended] The method of claim 1,
    The electrode support structure of a color flat panel display device, characterized in that the insulating material 240 for insulation is installed on the surface facing the unit electrode 120 of the electrode support structure (200).
    [12" claim-type="Currently amended] The method of claim 11,
    The insulating material 240 is an electrode support structure of a color flat panel display device, characterized in that made by ceramic coating or plasma spray coating.
    [13" claim-type="Currently amended] The method of claim 11,
    The insulating material 240 is a solid material, the electrode support structure of a color flat panel display device, characterized in that installed between the electrode support structure 200 and the unit electrode 120.
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    同族专利:
    公开号 | 公开日
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2002-02-06|Application filed by 엘지.필립스디스플레이(주)
    2002-02-06|Priority to KR1020020006654A
    2003-08-14|Publication of KR20030066908A
    优先权:
    申请号 | 申请日 | 专利标题
    KR1020020006654A|KR20030066908A|2002-02-06|2002-02-06|Electrode support structure of color flat Display device|
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