JPS58189615A - Liquid crystal display - Google Patents
Liquid crystal displayInfo
- Publication number
- JPS58189615A JPS58189615A JP57072417A JP7241782A JPS58189615A JP S58189615 A JPS58189615 A JP S58189615A JP 57072417 A JP57072417 A JP 57072417A JP 7241782 A JP7241782 A JP 7241782A JP S58189615 A JPS58189615 A JP S58189615A
- Authority
- JP
- Japan
- Prior art keywords
- repair
- liquid crystal
- electrode
- electrodes
- substrate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1345—Conductors connecting electrodes to cell terminals
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136259—Repairing; Defects
- G02F1/136272—Auxiliary lines
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は、液晶駆動回路基板上の電極の断線を補修する
ための補修用電極基板を備えた透過型の液晶表示装ａｌ
ｔｔ−関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a transmissive liquid crystal display device AL equipped with a repair electrode substrate for repairing a disconnection of an electrode on a liquid crystal drive circuit board.
tt-related.
近年、多結晶または非晶質半導体薄膜を用いたトランジ
スタアレイを集積形成して液晶駆動回路基板とした液晶
表示装置が注目されている◎特電；上記半導体薄膜が低
温で形成できることから、ガラス基板を用いることがで
き、従って低コスシ化が可能であり―また従来の露光技
術。In recent years, liquid crystal display devices that integrate transistor arrays using polycrystalline or amorphous semiconductor thin films and use them as liquid crystal drive circuit boards have attracted attention.◎Tokuden: Because the above semiconductor thin films can be formed at low temperatures, glass substrates have been Therefore, it is possible to reduce the cost by using conventional exposure techniques.
エツチング技術等のパターン形成法をそのまま適用して
大山積化を容易Ｃ；図ることができるなどの利点が注目
されている・
一般に従来の液晶表示装置は、トランジスタアレイを単
結晶シリコン基板Ｃ；形成して駆動回路基板とした反射
型液晶表示装置が多い。この場合、液晶駆動回路１板Ｃ
；は、液晶駆動用のトランジスタアレイとＸ、Ｙデータ
ラインがマトリゲス状（：配置されており、大面積化６
ユ伴って表示セル数が増加し、これ４：比例して電極数
も増加し、また電極長さも増大する。このため。It is attracting attention for its advantages such as the ability to easily form large stacks by directly applying pattern forming methods such as etching technology.In general, conventional liquid crystal display devices have transistor arrays formed on single crystal silicon substrates. There are many reflective liquid crystal display devices that use this as a driving circuit board. In this case, liquid crystal drive circuit 1 board C
The transistor array for driving the liquid crystal and the X and Y data lines are arranged in a matrix pattern (:), which increases the area.
The number of display cells increases with Y, and the number of electrodes increases proportionally, and the length of the electrodes also increases. For this reason.
電極パターン形成時にゴミやマスクの傷などＣ：より電
極短絡や断線が発生する・短絡の場合はスポット露光等
の作業で修正することが容易であるが、断線の場合Ｃ二
は直接的な修正はできない・そのため一般１：、駆動回
路基板の背後Ｃ二電極補修用基板を設け、ボンディング
等で駆動鑞接の線欠陥を点欠陥Ｃユ変換する手段が得ら
れる。Dust or scratches on the mask during electrode pattern formation C: Electrode short circuits or disconnections occur - In the case of short circuits, it is easy to correct with work such as spot exposure, but in the case of disconnections, C2 requires direct correction. Therefore, General 1: A two-electrode repair board is provided behind the drive circuit board, and a means for converting a line defect in the drive solder into a point defect by bonding or the like is obtained.
従来の反射型液晶表示装＃Ｌｃおいては、駆動回路基板
下の駆動電極補修用゛醒極は見えないから、その補修用
電極としてＡＡ、Ｔｌ−Ａｕ等任意のものを使用しても
何ら問題はない。しかし透過型液晶表示装置とした場合
（＝は、Ａｔ。In the conventional reflective liquid crystal display device #Lc, the drive electrode repair electrode under the drive circuit board is not visible, so there is no problem even if any electrode such as AA, Tl-Au, etc. is used as the repair electrode. No problem. However, in the case of a transmission type liquid crystal display device (= means At.
Ｔ１−Ａｕ等Ｃユより補修用電極を形成すると表示品位
が蓄しく低下するという問題がある。If a repair electrode is formed from C-U such as T1-Au, there is a problem in that the display quality is severely degraded.
本発明は上記の点（−一み、補修用電極（二よる表示品
位の低下を防止した透過型の液晶表７ｒ、メ１を提供す
ることを目的とする。An object of the present invention is to provide a transmissive liquid crystal display 7r, which prevents deterioration in display quality due to the above-mentioned points (-1) and repair electrodes (2).
〔発明の４ａ要〕
本発明は、透過型液晶表示装置の袖を用−極基板として
、透明基板Ｃ−透明纒イ膜からなる補修用電極な形成し
たものを用いることを特徴とする。[Summary 4a of the Invention] The present invention is characterized in that the sleeve of a transmissive liquid crystal display device is used as an electrode substrate, and a repair electrode formed from a transparent substrate C and a transparent film is used.
本発明≦二よれば、透過型液晶表示装置の表示品位が高
いものとなる・
〔発明の実施例〕
以下本発明の詳細な説明する。第１図（ａ）。According to the present invention≦2, the display quality of the transmissive liquid crystal display device becomes high. [Embodiments of the Invention] The present invention will be described in detail below. Figure 1(a).
（ｂ）は一実施例の補修用電極基板を示す平面図とその
Ａ−Ａ’断面図である。これを製造工程≦；従って説明
すると、まずガラス基板Ｊ（＝ＩｎＵ１゜ｓ ｎ Ｌ）
、等の透明導電膜をスパッタ法−二よりｚｏｏｏＸ堆積
し、これをパターニングしてＸデータライン補修用電極
ＩＣＩ＠ ａｌｇ・・・）を形成する０次≦二全面感
：ＳｔＯ，膜１を３００ＯＡ堆積し、その上べ一再度透
明導電膜を２００ＯＡ堆積してこれをパターニングする
こと６：よりＹデータツイン補修用電極ｄ（４１ｍ４ｇ
Ｍ・・・）を形成する・次ζ二Ｘデータライン補修
用電極１の両端部を延出させるべ（８１０，膜１をエツ
チングした後、Ａｔ膜な１．２μｍ蒸暑し、これをパタ
ーニングして各補修用電極ｚａｈの両端部（ユボンデイ
ング・パッド５．６を形成して完成する・このよ５Ｉユ
構成された補修用電極基板を、ガラス基板を用いてトラ
ンジスタアレイとＸ、Ｙデータラインが集積形成された
液晶駆動回路基板と組合せ、Ｘ、Ｙデータツインの断線
を補修した状態を第２図（ユ示す０
なお１図では省略したが、液晶表示装置は。(b) is a plan view and its AA' cross-sectional view showing a repair electrode substrate of one embodiment. Manufacturing process ≦; Therefore, to explain this, first, glass substrate J (=InU1゜s n L)
A transparent conductive film such as , etc. is deposited by sputtering method-2, and this is patterned to form an electrode for repairing the X data line ICI@alg...). 6: Deposit a transparent conductive film of 200 OA again on top of that and pattern it.
M...) ・Next, both ends of the ζ2X data line repair electrode 1 should be extended (810, After etching the film 1, heat the At film to 1.2 μm and pattern it. Both ends of each repair electrode zah (bonding pads 5.6 are formed to complete the repair electrode board). Using a glass substrate, a transistor array and X, Y data lines are bonded to the repair electrode substrate 5. Figure 2 shows the state in which the X and Y data twins have been repaired in combination with the integrated liquid crystal drive circuit board.
この液晶駆動回路基板と透明電極を全面（：形成した対
同基板との間（ユ液晶層を挾持すること（−より構成さ
れること（ユなる０
また＠２図では便宜上、液晶駆動回路基板と補修用ｉｌ
Ｉ＆基板とのＭ４Ｍｌ一ついて、しかもＹデータライン
じ関してのみ示しである。第２図（−おいて、ＪＪが液
晶駆動回路基板であって、ＪＪ（ＪＪｉ ｍ１１ｇ
ｍ・・・）がこれＣ−形成されたＹデータラインである
Ｏまた１４はプリント配線板であって、Ｙデータライン
用のプリント電極１５（１５Ｂｅ１６Ｂ・・・）のみを
示し℃ある・各Ｙデータライン１２は両端Ｃユボンデイ
ング・パッドが設けられているが１通常は交互Ｃニ一方
のボッディング・パッドのみをプリント配線板１１上の
電極ＩＭ＜−ボンディングしているＣ従って入力偏号は
各Ｙデータライン１２１；対してその一端からのみ入力
される・因の場合、Ｙデータツイン１ｇ、の途中（：ｆ
ｒ線１１がある。Between this liquid crystal drive circuit board and the transparent electrode formed on the entire surface (:), the liquid crystal layer is sandwiched (-). and repair illumination
There is one M4M1 with I& board, and only the Y data line is shown. Figure 2 (-, JJ is the liquid crystal drive circuit board, JJ (JJi m11g
14 is a printed wiring board, and shows only the printed electrodes 15 (15Be16B...) for the Y data line. The data line 12 is provided with C bonding pads at both ends, but normally only one of the bonding pads is bonded to the electrode IM<- on the printed wiring board 11. Therefore, the input polarization is If input is only from one end of the Y data line 121;, in the middle of the Y data twin 1g (:f
There is an r-line 11.
これを補修しないとすれば、このＹデータ２イＷｉｌｌ
は断線１１より先（−は入力信号が供給されず、５イン
欠陥となる。この場合≦ユ補修用電極墓板上の補修用電
極４．を用いて補修を行う・部ち、このＹデータライン
ｌｌ箇の通常は用いられていない側のボッディング・パ
ッドと補修用電極４．の一端のボンディング・パッド６
１との間をボンディング接続すると共６：、補修用電極
４．の他端のボンディング−パッド６ｍとプリント電極
１ｉｌｌ との間をボンディング接続する・
このような補修を行うこと毫；より、Ｙデータフィン１
１，４二はその両端から入力信号が供給され、従って断
線１１は単なる点欠陥≦ユすぎなくなる・Ｘ、Ｙデータ
ラインの全てＣユついて。If this is not repaired, this Y data 2 will
is ahead of disconnection 11 (- indicates that the input signal is not supplied, resulting in a 5-in defect. In this case, ≦ repair electrode 4 on the repair electrode grave plate is used for repair. The bonding pad 6 at one end of the bonding pad and the repair electrode 4 on the normally unused side of the line 1.
1 and 6: and repair electrode 4. Bonding connection between the bonding pad 6m at the other end and the printed electrode 1ill ・This kind of repair is required; therefore, the Y data fin 1
1 and 42 are supplied with input signals from both ends thereof, so that the disconnection 11 is no more than a mere point defect.
表示状態を目視して欠陥位置を検出し同様の欠陥補修を
行うこと（二より、殆んどのライン欠陥を点欠陥として
良好な表示状態とすることができる。By visually observing the display state, detecting the defect position, and repairing the same defect, a good display state can be achieved by treating most line defects as point defects.
そしてこの実施例（−よれば、補修用電極基板として、
透明基板（二透明導電膜からなる補修用電極を配設した
ものを用いることく二より、透過型液晶表示装置とした
場合Ｃユ補修用電極が目ざわりとなることはなく１表示
品位が高いものとなる。According to this example (-), as a repair electrode substrate,
By using a transparent substrate (on which repair electrodes made of a transparent conductive film are arranged), when used in a transmission type liquid crystal display device, the repair electrodes will not be noticeable and the display quality will be high. becomes.
１１１図（ａ） 、 （ｂ）は本発明の一実施例におけ
る補修用電極基板の平面図とそのＡ−Ａ’断面図、第２
図はこの補修用基板と液晶駆動回路基板とを組合せて補
修した状態を示す図である。
ｌ・・・ガラス基板ｓ ’ （２Ｂ ＃ ２ ｍ・・
・）・・・Ｘデータライン補修用電極、３・・・８１０
．膜、４（４゜４３・・・）・・・Ｙデータライン補修
用１ｉ！権、 ５ 、６・・・ボンディング・パッド、
１１・・・駆動回路基板。
１２ （ｌ Ｊ １ ＃ １ ｊ ＠ ｍ ”・）
・・・Ｙデータライン。
１３・・・断線、１４−・・プリント配線板、１５（１
５＠＊１６Ｂ・・・）・・・電極。
第１図
（ａ）
（ｂ）111 (a) and (b) are a plan view of a repair electrode substrate according to an embodiment of the present invention, its AA' cross-sectional view, and a second
The figure shows a repaired state in which the repair board and the liquid crystal drive circuit board are combined. l...Glass substrate s' (2B #2 m...
・)...X data line repair electrode, 3...810
．． Membrane, 4 (4°43...)...1i for Y data line repair! 5, 6...bonding pad,
11...Drive circuit board. 12 (l J 1 # 1 j @ m ”・)
...Y data line. 13... Disconnection, 14-... Printed wiring board, 15 (1
5@*16B...)...Electrode. Figure 1 (a) (b)
Claims (1)
板と、全面Ｃ；電極が形成された対向電極基板との間Ｃ
：液晶層を挾持し、液晶駆動回路基板の背後にその電極
の断線を補修する電極が形成された補修用電極基板を配
設して構成される透過型の液晶表示装にζ：おいて、前
記補修用電極基板は透明基板１；透明導電膜からなる補
修用電極を形成したものであることを特徴とする液晶表
示装置。Matrix C: between the liquid crystal drive circuit board on which electrodes are arranged and the entire surface C; a counter electrode substrate on which electrodes are formed C
: In a transmissive liquid crystal display device configured by sandwiching a liquid crystal layer and arranging a repair electrode board on which an electrode for repairing a disconnection of the electrode is formed behind a liquid crystal drive circuit board, A liquid crystal display device characterized in that the repair electrode substrate is a transparent substrate 1 on which a repair electrode made of a transparent conductive film is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57072417A JPS58189615A (en) | 1982-04-28 | 1982-04-28 | Liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57072417A JPS58189615A (en) | 1982-04-28 | 1982-04-28 | Liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58189615A true JPS58189615A (en) | 1983-11-05 |
Family
ID=13488680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57072417A Pending JPS58189615A (en) | 1982-04-28 | 1982-04-28 | Liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58189615A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS599634A (en) * | 1982-07-07 | 1984-01-19 | Seiko Epson Corp | Liquid crystal display device |
| FR2605437A1 (en) * | 1986-10-17 | 1988-04-22 | Thomson Csf | Method of repairing defective electrodes of a matrix network and repair network implementing this method |
| JPS6396537U (en) * | 1986-12-12 | 1988-06-22 | ||
| JPH02301723A (en) * | 1989-05-16 | 1990-12-13 | Matsushita Electric Ind Co Ltd | Defect correcting method for electrode and optical modulating element |
| EP0766118A2 (en) * | 1995-09-28 | 1997-04-02 | Sharp Kabushiki Kaisha | Active-matrix type liquid crystal display device and method of compensating for defective pixel |
| US6111620A (en) * | 1995-09-06 | 2000-08-29 | Sharp Kabushiki Kaisha | Active matrix substrate |
| US6697037B1 (en) | 1996-04-29 | 2004-02-24 | International Business Machines Corporation | TFT LCD active data line repair |
| KR100529562B1 (en) * | 1998-04-30 | 2006-02-08 | 삼성전자주식회사 | Liquid Crystal Display with Multiple Repair Lines |
| JP2007249201A (en) * | 2006-03-15 | 2007-09-27 | Au Optronics Corp | Display panel |
-
1982
- 1982-04-28 JP JP57072417A patent/JPS58189615A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS599634A (en) * | 1982-07-07 | 1984-01-19 | Seiko Epson Corp | Liquid crystal display device |
| FR2605437A1 (en) * | 1986-10-17 | 1988-04-22 | Thomson Csf | Method of repairing defective electrodes of a matrix network and repair network implementing this method |
| JPS6396537U (en) * | 1986-12-12 | 1988-06-22 | ||
| JPH02301723A (en) * | 1989-05-16 | 1990-12-13 | Matsushita Electric Ind Co Ltd | Defect correcting method for electrode and optical modulating element |
| US6111620A (en) * | 1995-09-06 | 2000-08-29 | Sharp Kabushiki Kaisha | Active matrix substrate |
| EP0766118A3 (en) * | 1995-09-28 | 1998-07-08 | Sharp Kabushiki Kaisha | Active-matrix type liquid crystal display device and method of compensating for defective pixel |
| EP0766118A2 (en) * | 1995-09-28 | 1997-04-02 | Sharp Kabushiki Kaisha | Active-matrix type liquid crystal display device and method of compensating for defective pixel |
| US6175393B1 (en) | 1995-09-28 | 2001-01-16 | Sharp Kabushiki Kaisha | Active-matrix type liquid crystal display device and method of compensating for defective pixel |
| US6697037B1 (en) | 1996-04-29 | 2004-02-24 | International Business Machines Corporation | TFT LCD active data line repair |
| KR100529562B1 (en) * | 1998-04-30 | 2006-02-08 | 삼성전자주식회사 | Liquid Crystal Display with Multiple Repair Lines |
| JP2007249201A (en) * | 2006-03-15 | 2007-09-27 | Au Optronics Corp | Display panel |
| US7894011B2 (en) | 2006-03-15 | 2011-02-22 | Au Optronics Corp. | Display panel having repair lines and signal lines disposed at different substrates |
| US8026993B2 (en) | 2006-03-15 | 2011-09-27 | Au Optronics Corp. | Display panel having repair lines and signal lines disposed at different substrates |
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