• 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:
    The present invention discloses a PDP having a novel configuration. Conventionally, the opaque metal electrode has a problem of lowering the aperture ratio by blocking the light transmission path and requiring photo etching to form the transparent electrode. In the present invention, the aperture ratio is improved by overlapping at least a portion of the metal electrode on the black stripe. In particular, by laminating a primary dielectric layer on a black stripe to form a transparent electrode and a metal electrode, it is possible to form a transparent electrode by a printing method, thereby providing a high luminance PDP at a low manufacturing cost.
    公开号:KR19990086905A
    申请号:KR1019980020087
    申请日:1998-05-30
    公开日:1999-12-15
    发明作者:김화수
    申请人:김영남；오리온전기 주식회사；
    IPC主号:
    专利说明:

    Plasma display device
    The present invention relates to a plasma display panel (PDP).
    PDP is a display device that uses gas discharge phenomenon for image display, and it is gradually replacing the area of CRT from large display devices such as electronic display boards and electronic display boards, and its resolution is further advanced and next-generation display devices such as wall-mounted TVs. As attention is focused.
    The first appearance of the PDP was a direct current (DC) type PDP in which two groups of select electrodes faced in the discharge space. It is based on PDP.
    In FIG. 1A, the front and rear substrates P1 and P2 are arranged so that the front and rear electrodes E1 and E2 that cross each other are arranged, and have a stripe or a matrix for partitioning pixels formed at the intersections thereof. A partition b is provided to partition the discharge space V into a plurality of pixels, and each pixel is provided with a required fluorescent layer (omitted for convenience) for each pixel as necessary. A dielectric layer (D) is coated on one of the two electrodes (E1, E2) (front electrode in FIG. 1; E1) to form a wall charge on the surface by applying a voltage, thereby realizing a rapid and powerful discharge and memory effect. do.
    1 is a surface discharge type AC PDP, which includes a pair of front electrodes E1 and causes an initial discharge between any one of both front electrodes E1 and back electrode E2. The sustained discharge is continued between the front electrodes E1 to improve the luminance of light emitted. In this case, when the luminance is increased, it is difficult to recognize a clear image when the adjacent pixels simultaneously emit light. Thus, a black stripe S is formed between the pixels of the front substrate P1 to improve contrast. To promote The black stripe S is generally formed to correspond to the upper portion of the partition wall B, which is an invalid space.
    By the way, the discharge light generated in the discharge space (V) is transmitted to the user through the front substrate (P1), the front electrode (E1) is composed of a transparent electrode (T), such as ITO in order not to inhibit the light transmission. Since ITO is poor in conductivity, the larger the PDP, the greater the voltage drop, making it difficult to realize uniform luminance as a whole. Accordingly, it is common to adopt a stacked structure front electrode E1 on which the metal electrode M having a small projected area is stacked as a bus electrode to compensate for the drop in conductivity. Since the metal electrode E1 has high conductivity but is opaque, the metal electrode E1 is eccentrically arranged to the outside of the transparent electrode T of both front electrodes E1 as shown in order to minimize the inhibition of light transmission.
    However, even with this configuration, the actual area through which the discharged light can pass through the front substrate P1 becomes the remaining portion except for the partition B and the black stripe S and the metal electrode M. In the surface discharge type PDP as shown in Fig. 1, the front electrode E1 is provided in pairs, so that the opening width d 'is the distance between the inner ends of the metal electrodes M of the front electrode E1. The aperture ratio is greatly reduced. As a result, the improvement in the discharge intensity and the duty cycle achieved by the surface discharge are offset by the reduction in the aperture ratio, thereby failing to achieve a significant improvement in the luminance of light emission.
    In addition, the larger problem of the conventional PDP is a problem in manufacturing the transparent electrode (T), the cumbersome and high cost of forming the transparent electrode (T) by forming a photo ITO layer on the front substrate (P1) and then photo-etched it It requires a process of.
    SUMMARY OF THE INVENTION In view of such a conventional problem, an object of the present invention is to provide a PDP that can improve the light emission luminance by increasing the aperture ratio of a front substrate and can be manufactured by a cheap and simple printing method.
    1 is a cross-sectional view showing a general configuration of a conventional surface discharge AC PDP;
    2A and B are sectional views showing the structure of the surface discharge type AC PDP according to the present invention, respectively.
    <Description of the code used in the main part of the drawing>
    P1, P2: Front and Back Boards
    B: bulkhead
    E1, E2: front and back electrodes
    T: transparent electrode
    M: metal electrode
    D: dielectric layer
    D1: primary dielectric layer
    D2: secondary dielectric layer
    PDP according to the present invention for achieving the above object is
    At least a portion of the outer end of the metal electrode extends on the black stripe, and the extension part thereof overlaps the black stripe in the light transmission path yarn.
    According to a preferred feature of the present invention, the outer end of the transparent electrode extends on the black stripe so that the metal electrode is stacked on the extension, and the opaque metal electrode is not positioned on the transmission path of the discharged light, but overlaps the black stripe on the partition wall. As a result, the opening width of the PDP becomes the distance between the inner ends of the black strips on both sides, so that the opening ratio is greatly improved.
    According to another preferred feature of the present invention, a transparent electrode is formed by a printing method such that a primary dielectric layer is laminated on the black stripe, and an outer end thereof overlaps the black stripe on the primary dielectric layer. The manufacturing process and cost can be greatly improved.
    As a result, the discharge light generated in the discharge space more efficiently penetrates the front substrate, thereby greatly improving the PDP emission luminance, and the transparent electrode can be formed by a printing method, thereby providing a high luminance PDP at a low manufacturing cost.
    Example
    Such specific features and other advantages of the present invention will become more apparent from the following description of the preferred embodiments with reference to the accompanying drawings.
    In Fig. 2, the PDP according to the present invention basically includes the front and back electrodes E1 and E2 arranged on the front and back substrates P1 and P2 so as to cross each other and formed at the intersection thereof, as shown in Fig. 1. A partition B is provided for partitioning of the dielectric layer D, and a dielectric layer D is provided on one of the two electrodes E1 and E2 (front electrode E1 in FIG. 1). The front electrode E1 is provided as a pair having a lamination structure of the transparent electrode T such as ITO and the metal electrode M to form a surface discharge type PDP which repeats the start discharge and the sustain discharge. The black stripe S is arranged above the partition B to improve contrast.
    In such a configuration, each of the metal electrodes M of the pair of front electrodes E1 has a black stripe S on the partition B so that at least a portion thereof overlaps the black stripe S according to the present invention. It extends upward and the inner end is laminated and connected on the transparent electrode T. Since the partition B and the black stripe S are positioned on the boundary between the two pixels, the outer ends of the metal electrodes M of the two adjacent pixels are separated from each other in the black stripe S.
    According to this, since at least a part of the opaque metal electrode M is moved outward so as to overlap the black stripe S, the opening width dl is increased accordingly, and the opening ratio can be improved.
    In this configuration, since the transparent electrode T is positioned on the front substrate P1, the transparent electrode T must be formed by front lamination and photolithography as described above. Accordingly, the outer end thereof cannot be moved out of the inner end of the black stripe S. At least a part of the electrode M extends inside the black stripe S and overlaps the transparent electrode T so that electrical connection between the two electrodes M is possible. Therefore, in the embodiment of FIG. 2, the problem of manufacturing the transparent electrode T, in addition to the improvement of the aperture ratio, remains.
    In contrast, the embodiment of FIG. 3 allows the transparent electrode T to be formed by the printing method with the maximization of the aperture ratio.
    That is, in FIG. 3, the first dielectric layer D1 is first formed on the black stripe S, and the transparent electrode T is formed on the first dielectric layer D1. The outer end of the transparent electrode T overlaps the black stripe S and the metal electrode M is stacked on the overlapped extension. Preferably, the inner end of the metal electrode M of each pixel is formed of the black stripe S. It is located on the same or outside the inner end. After the transparent electrode T and the metal electrode M are formed, the secondary dielectric layer D2 is stacked thereon to complete the dielectric layer D.
    However, the width of the black stripe S is generally slightly larger than the width of the partition B, for example, for the shielding of phosphors remaining on the partition B, so that the opening width d2 is equal to both sides of the pixel when the above configuration is adopted. Since the distance between the inner ends of the black stripe S corresponds to the entire area of the usable effective portion, the aperture ratio can be maximized regardless of the stack structure of the front electrode E1 or the surface discharge type structure having the pair thereof. do.
    Another great advantage of the embodiment of Fig. 3 is that the transparent electrode T can be formed by a printing method. That is, since the transparent electrode T is formed on the primary dielectric layer D1 having a high surface roughness by printing, not on the front substrate P2 which is a glass surface, direct pattern printing is possible because of high adhesion. As a result, an expensive photolithography process is unnecessary, and the transparent electrode T can be formed by a single printing process, thereby greatly reducing the process cost of PDP and improving productivity, thereby realizing a high brightness PDP with low manufacturing cost. .
    Such advantages of the present invention can be realized not only in the surface discharge type PDP as shown, but also in a general AC PDP in which the front electrode E1 is single, and can be implemented in a direct current (DC) type PDP without a dielectric layer (D). Can be. That is, in the dielectric layer D of FIG. 3, since the second layer is the second dielectric layer D2, the transparent electrode T and the metal electrode M are stacked on the primary dielectric layer D1. The configuration of the front electrode E1 can be applied as it is to print the transparent electrode T while improving the aperture ratio in the DC PDP.
    As described above, according to the present invention, a PDP capable of realizing high resolution and high resolution with low manufacturing cost and high screen brightness is provided at low cost.
    权利要求:
    Claims (6)
    [1" claim-type="Currently amended] In a plasma display device in which a black stripe is arranged on a partition wall partitioning pixels, and the front electrode is formed of a laminated structure of a transparent electrode and a metal electrode.
    Extend at least a portion of the outer end of the metal electrode onto the black stripe so that the extension overlaps the black stripe on the light transmission path;
    Plasma display element characterized by.
    [2" claim-type="Currently amended] The method of claim 1,
    The primary right layer is stacked on the black stripe, and the transparent electrode and the metal electrode are formed on the primary dielectric layer.
    Plasma display element characterized by.
    [3" claim-type="Currently amended] The method of claim 2,
    The transparent electrode is formed by a printing method
    Plasma display element characterized by.
    [4" claim-type="Currently amended] The method of claim 2,
    The outer end of the transparent electrode is extended so as to overlap on the black stripe and the metal electrode is stacked on this extension portion
    Plasma display element characterized by.
    [5" claim-type="Currently amended] The method of claim 2,
    The secondary dielectric layer is laminated on the transparent electrode and the metal electrode to form the dielectric layer.
    Plasma display element characterized by.
    [6" claim-type="Currently amended] The method of claim 1,
    The front electrode is composed of a pair of mutual sustain discharge
    Plasma display element characterized by.
    类似技术:
    公开号 | 公开日 | 专利标题
    JP4069583B2|2008-04-02|Plasma display device
    JP3224486B2|2001-10-29|Surface discharge type plasma display panel
    JP4288258B2|2009-07-01|Plasma display panel
    KR100304906B1|2001-09-26|Plasma Display Panel having Floating electrode
    US7211953B2|2007-05-01|Plasma display device having portion where electrical field is concentrated
    TW507239B|2002-10-21|Plasma display panel having trench type discharge space and method of fabricating the same
    US6713960B2|2004-03-30|Plasma display panel and plasma display device
    EP0691671A1|1996-01-10|Discharge display apparatus
    JP3443167B2|2003-09-02|Plasma display panel
    US7088043B2|2006-08-08|Plasma display panel enhancing a bright room contrast
    US6353292B1|2002-03-05|Plasma display panel
    KR20020072791A|2002-09-18|Plasma Display Panel
    US20050017637A1|2005-01-27|Plasma display panel
    CN1327471C|2007-07-18|Plasma display panel
    EP1099234A1|2001-05-16|Capillary electrode discharge plasma display panel device and method of fabricating the same
    JP2003131224A|2003-05-08|Liquid crystal display device, backlight and driving method and manufacturing method therefor
    JP2005123198A|2005-05-12|Plasma display panel
    US7394197B2|2008-07-01|Plasma display panel
    US7265492B2|2007-09-04|Plasma display panel with discharge cells having curved concave-shaped walls
    KR100374968B1|2003-03-06|Palasma display pannel of ac type
    US7265490B2|2007-09-04|Plasma display panel bus electrode structure
    US20040232843A1|2004-11-25|Plasma display panel and method of forming address electrodes thereof
    US6608447B2|2003-08-19|Plasma display panel and driving method thereof
    JP2002170496A|2002-06-14|Direct current plasma display panel for backlight of liquid crystal display device
    JP2005135896A|2005-05-26|Plasma display panel
    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:
    1998-05-30|Application filed by 김영남, 오리온전기 주식회사
    1998-05-30|Priority to KR1019980020087A
    1999-12-15|Publication of KR19990086905A
    优先权:
    申请号 | 申请日 | 专利标题
    KR1019980020087A|KR19990086905A|1998-05-30|1998-05-30|Plasma Display Device|
    [返回顶部]