JPH052176A - Liquid crystal display device - Google Patents

Liquid crystal display device

Info

Publication number
JPH052176A
JPH052176A JP15331891A JP15331891A JPH052176A JP H052176 A JPH052176 A JP H052176A JP 15331891 A JP15331891 A JP 15331891A JP 15331891 A JP15331891 A JP 15331891A JP H052176 A JPH052176 A JP H052176A
Authority
JP
Japan
Prior art keywords
correction
scanning signal
liquid crystal
crystal display
terminals
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
Application number
JP15331891A
Other languages
Japanese (ja)
Inventor
Teruo Takemura
輝雄 武村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP15331891A priority Critical patent/JPH052176A/en
Publication of JPH052176A publication Critical patent/JPH052176A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To prevent parasitic capacity from being generated between correction electric conductors and the signal input terminals of a liquid crystal display panel by providing an electric conductor for correction for each scanning signal terminal for inputting a scanning signal from an opposite side. CONSTITUTION:The electric conductors 17 for correction are provided independently to, for example, groups 15A and 15B of scanning signal terminals provided on both sides of the display panel 20. The electric conductors 16 for correction, provided for the groups 15A and 15B of scanning signal terminals 15A and 15B, and connected correction terminals 15X and 15Y provided in the groups of scanning signal terminals 15A and 15B and formed in an L shape. The correction electric conductors 17 formed in the L shape are formed over groups of scanning signal lines 10A and 10B extended from the scanning signal terminals 15A and 15B provided on the opposite side across an insulating film 18. Therefore, the video signal lines 11 for which a video signal is inputted and the correction electric conductors 17 are not superposed on one over the other and a broken scanning signal line 10 can be corrected.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、液晶表示装置に関し、
特に高精細あるいは大型の液晶表示装置に関するもので
ある。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display device,
In particular, it relates to a high-definition or large-sized liquid crystal display device.

【0002】[0002]

【従来の技術】近年、CRTに替わる表示装置としての
液晶表示装置の実用化がなされ、現在ではこの装置の高
精細化並びに大型化を目指した研究開発が盛んである。
2. Description of the Related Art In recent years, a liquid crystal display device has been put to practical use as a display device replacing a CRT, and nowadays, research and development aiming at high definition and large size of this device is actively conducted.

【0003】一方で、液晶表示装置の大型化、高精細化
に伴い、画素欠陥あるいは線欠陥による歩留まりの低下
に対応するための表示装置の救済技術も重要となってい
る。
On the other hand, with the increase in size and definition of liquid crystal display devices, a technique for relieving the display device to cope with a decrease in yield due to pixel defects or line defects is also important.

【0004】例えば、液晶表示装置に駆動信号を入力す
る映像信号線または走査信号線の断線欠陥により表示画
素に信号が供給されない不灯部分(液晶に電圧が印加さ
れていない時に光を透過しない場合、即ち、ノーマリー
ブラックの場合に不灯)が発生し、表示装置の歩留まり
が低下することになるのである。
For example, a non-lighted portion where a signal is not supplied to a display pixel due to a disconnection defect of a video signal line or a scanning signal line for inputting a drive signal to a liquid crystal display device (when light is not transmitted when a voltage is not applied to the liquid crystal) That is, non-lighting occurs in the case of normally black, and the yield of the display device is reduced.

【0005】図6(a)に従来の液晶表示パネルの断線
欠陥を救済する修正配線を備えた液晶表示装置の平面図
を示し、同図(b)に図6(a)のB−B’線に沿った
断面図を示す。
FIG. 6 (a) shows a plan view of a liquid crystal display device provided with a repair wiring for repairing a disconnection defect of a conventional liquid crystal display panel, and FIG. 6 (b) shows BB 'of FIG. 6 (a). A sectional view along the line is shown.

【0006】同図(a),(b)に示す如く、液晶表示
パネル(1)上に配置した映像信号線または走査信号線
の駆動信号を入力する複数の信号入力端子(2)の上に
絶縁膜(53)を積層し、さらにその絶縁膜(53)上
にAlなどの金属材料からなる修正配線(4)を表示画
像領域部(5)の周囲に環状に形成する。
As shown in FIGS. 1A and 1B, on a plurality of signal input terminals (2) for inputting drive signals of video signal lines or scanning signal lines arranged on the liquid crystal display panel (1). An insulating film (53) is laminated, and a repair wiring (4) made of a metal material such as Al is formed on the insulating film (53) in a ring shape around the display image area portion (5).

【0007】ここで、前記液晶表示パネルの映像信号線
の断線欠陥により、その映像信号が供給されず不灯部分
が発生した信号線を前記修正配線を用いて救済する方法
を図に従って説明する。
Now, a method of repairing a signal line in which a video signal is not supplied due to a disconnection defect of the video signal line of the liquid crystal display panel and a non-lighting portion is generated by using the correction wiring will be described with reference to the drawings.

【0008】同図(a)は、従来の液晶表示装置に断線
欠陥が発生した状態を示し、同図(b)はC−C’線に
沿った断面図を示す。
FIG. 1A shows a state where a disconnection defect has occurred in a conventional liquid crystal display device, and FIG. 1B shows a sectional view taken along the line CC '.

【0009】図(a)に示す如く、断線事故により、あ
る1本の映像信号線上の断線個所(56)を境にして、
映像信号が供給されていない不灯部分(図中の斜線部
分)(61)と、映像信号が供給されている点灯部分
(図中の実線部分)(63)とが発生する。ここで、前
記不灯部分(61)側の信号入力端子を(62)、点灯
部分(63)側の信号入力端子を(64)とする。
As shown in FIG. 1A, a disconnection accident causes a disconnection point (56) on a certain video signal line to serve as a boundary.
An unlighted portion (a shaded portion in the drawing) (61) to which the video signal is not supplied and a lit portion (a solid line portion in the drawing) (63) to which the video signal is supplied occur. Here, the signal input terminal on the non-lighting portion (61) side is (62), and the signal input terminal on the lighting portion (63) side is (64).

【0010】まず、修正配線(54)上に第1のボンデ
ィング(71)をし、信号入力端子(64)上に第2の
ボンディング(72)をして信号入力端子(64)と修
正配線(54)とを接続する。続いて、修正配線(5
4)上に第1のボンディング(71)をし、信号入力端
子(62)に第2のボンディング(72)をして信号入
力端子(62)と修正配線(54)とを接続する。これ
により、ボンディング(71),(72)及び修正配線
(54)の経路で不灯部分(61)に映像信号が供給さ
れ、断線部分の修正が行われ断線前の正常な表示が可能
となる。
First, the first bonding (71) is performed on the repair wiring (54), the second bonding (72) is performed on the signal input terminal (64), and the signal input terminal (64) and the repair wiring ( 54) is connected. Then, the correction wiring (5
4) First bonding (71) is performed on the above, and second bonding (72) is performed on the signal input terminal (62) to connect the signal input terminal (62) and the correction wiring (54). As a result, the video signal is supplied to the non-lighted portion (61) through the paths of the bonding (71), (72) and the correction wiring (54), the broken portion is corrected, and a normal display before the disconnection becomes possible. .

【0011】[0011]

【発明が解決しようとする課題】しかしながら、上述の
従来の救済方法では、液晶表示パネル(50)上に絶縁
膜(53)を介して形成された各修正配線(54)と、
前記各信号入力端子(52)との間で寄生容量がそれぞ
れ発生する。特に、液晶表示装置の大型化や高精細化に
伴って、信号入力端子の数が増加すると、前記寄生容量
も増大することになる。また、修正配線の長さも信号入
力端子(52)の増加により長くなるため、修正配線の
抵抗も増大することになる。
However, in the above-mentioned conventional repairing method, each correction wiring (54) formed on the liquid crystal display panel (50) via the insulating film (53),
A parasitic capacitance is generated between each of the signal input terminals (52). In particular, as the number of signal input terminals increases with the increase in size and definition of liquid crystal display devices, the parasitic capacitance also increases. Further, since the length of the correction wiring also becomes longer due to the increase in the signal input terminal (52), the resistance of the correction wiring also increases.

【0012】これらの理由により、入力する信号波形に
歪みが生じたり、また救済した線が他の線と輝度差を生
じたりすることになる。即ち、大型あるいは高精細の液
晶表示装置においては、従来の断線欠陥修正方法では限
界をきたすようになった。上述した問題は、特に映像信
号が入力される各ドレインライン電極と、修正配線とが
直交し重畳配置される場合に特に顕著となって表われ
る。
For these reasons, the input signal waveform may be distorted, and the repaired line may have a brightness difference from other lines. That is, in a large-sized or high-definition liquid crystal display device, the conventional disconnection defect correction method has reached its limit. The above-mentioned problem is particularly remarkable when each drain line electrode to which a video signal is input and the correction wiring are arranged so as to be orthogonal to each other and overlap each other.

【0013】[0013]

【課題を解決するための手段】本発明は上述した課題に
鑑みて為されたものであり、表示パネルの相対向する側
辺から走査信号あるいは映像信号を入力する走査信号端
子あるいは映像信号端子の近傍に夫々の信号線が断線し
たときに修正可能な修正用配線を相対向する一群の走査
信号端子あるいは映像信号端子毎に夫々設けて解決す
る。
SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and is provided for a scanning signal terminal or a video signal terminal for inputting a scanning signal or a video signal from opposite sides of a display panel. To solve the problem, a correction wiring that can be corrected when each signal line is broken in the vicinity is provided for each of a group of scanning signal terminals or video signal terminals facing each other.

【0014】[0014]

【作用】このように本発明に依れば、相対向する側辺か
ら走査信号および映像信号を入力する走査信号端子ある
いは映像信号端子毎に修正用の修正用配線を設けること
により、映像信号が入力される映像信号線と修正用配線
とを重畳されることなく、断線した走査信号線を修正す
ることが可能となる。その結果、従来の如き、修正配線
と液晶表示パネルの信号入力端子との間の寄生容量の発
生を防止することができる。
As described above, according to the present invention, the video signal is corrected by providing the correction wiring for correction for each scanning signal terminal or each video signal terminal for inputting the scanning signal and the video signal from the opposite sides. It is possible to correct the broken scanning signal line without overlapping the input video signal line and the correction wiring. As a result, it is possible to prevent the occurrence of parasitic capacitance between the correction wiring and the signal input terminal of the liquid crystal display panel as in the conventional case.

【0015】[0015]

【実施例】以下に図1乃至図5に示した実施例に基づい
て本発明を説明する。図1は液晶表示装置の液晶表示パ
ネルの平面図であり、図2は液晶表示装置のプリント基
板の平面図であり、図3はタブ基板の平面図である。
DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on the embodiments shown in FIGS. 1 is a plan view of a liquid crystal display panel of the liquid crystal display device, FIG. 2 is a plan view of a printed circuit board of the liquid crystal display device, and FIG. 3 is a plan view of a tab substrate.

【0016】図1の液晶表示パネルにおいて、中央のマ
トリックス状に形成されている小さな四角形は、TFT
およびこのTFT周囲に形成される表示電極走査信号線
(ゲートライン)(10)、映像信号線(ドレインライ
ン)(11)、補助容量および補助容量ライン(12)
を一組としたものであり、上下には映像信号線(ドレイ
ンライン)(11)が伸び、映像信号端子(ドレイン端
子)(13)に接続される。一方、左右には走査信号線
(ゲートライン)(10)及び補助容量ライン(12)
が伸び、走査信号線(ゲートライン)(10)は表示パ
ネルの両側辺に設けられた走査信号端子(ゲート端子)
(15)と接続される。また、走査信号端子(15)及
び映像信号端子(13)は複数本、(例えば50〜20
0本)が一群をなすように形成され、その一群の端子が
複数のブロック毎に形成されている。かかる一群の端子
(13)(15)上には後述するタブ基板が接続され
る。
In the liquid crystal display panel of FIG. 1, the small squares formed in the central matrix form TFTs.
And display electrode scanning signal line (gate line) (10), video signal line (drain line) (11), auxiliary capacitance and auxiliary capacitance line (12) formed around the TFT.
And a video signal line (drain line) (11) extends vertically and is connected to a video signal terminal (drain terminal) (13). On the other hand, scanning signal lines (gate lines) (10) and auxiliary capacitance lines (12) are provided on the left and right.
And the scanning signal line (gate line) (10) is a scanning signal terminal (gate terminal) provided on both sides of the display panel.
(15) is connected. Further, the scanning signal terminal (15) and the video signal terminal (13) are plural (for example, 50 to 20).
0) are formed to form a group, and the group of terminals is formed for each of a plurality of blocks. A tab substrate, which will be described later, is connected to the group of terminals (13) and (15).

【0017】本発明の特徴とするところは、表示パネル
(20)の両側辺に設けられた、例えば一群の走査信号
端子(15A)(15B)毎に独立した修正用配線(1
7)を設けるところにある。ここで修正用配線(17)
について説明する。修正用配線(17)は図1及び図4
に示す如く、一群の走査信号端子(15A)(15B)
毎に設けられ、一群の走査信号端子(15A)(15
B)中に設けられた修正用端子(15X)(15Y)と
接続されてL字型状に形成されている。L字状に形成さ
れた修正用配線(17)は絶縁膜(18)を介して相対
向する側辺に設けられている走査信号端子(15A)
(15B)から延在される一群の走査信号線(10A)
(10B)と重畳するように形成される。また修正用配
線(17)はTFTを構成するAl等の金属よりなるソ
ース・ドレイン電極を形成する際に同時に形成されるが
これに限定されるものではない。
The feature of the present invention resides in that, for example, a group of scanning signal terminals (15A) (15B) provided on both sides of the display panel (20) has an independent correction wiring (1).
7) is provided. Wiring for correction here (17)
Will be described. The correction wiring (17) is shown in FIGS.
As shown in, a group of scanning signal terminals (15A) (15B)
A group of scanning signal terminals (15A) (15A)
It is connected to the correction terminals (15X) and (15Y) provided in B) and is formed in an L-shape. The L-shaped correction wiring (17) has scanning signal terminals (15A) provided on opposite sides of the insulating film (18).
A group of scanning signal lines (10A) extending from (15B)
It is formed so as to overlap with (10B). The correction wiring (17) is formed at the same time when the source / drain electrodes made of a metal such as Al forming the TFT are formed, but the invention is not limited to this.

【0018】プリント基板(30)は図2に示す如く、
中央に表示窓(31)を備えた枠状に形成され、枠状に
形成された実装領域上にはCu箔等によりタブ基板を接
続する走査信号線用および映像信号用の接続パッド(3
2A)(32B)(33)が形成され、接続パッド(3
2A)(32B)(33)から延在された配線はスルー
ホール孔(34)を介して基板(30)の両面に形成さ
れる。図示されないが配線上にはLSI等の複数の半導
体素子が固着搭載されている。ところで、走査信号線用
の接続パッド(32A)(32B)には表示パネルの修
正用端子(15X)(15Y)と接続される修正用の接
続パッド(32X)(32Y)を有している。また、相
対向する修正用の接続パッド(32X)(32Y)は夫
々配線(36)により引き回し形成されている。
The printed circuit board (30) is as shown in FIG.
A connection pad (3) for a scanning signal line and a video signal, which is formed in a frame shape having a display window (31) in the center, and which connects the tab substrate with a Cu foil or the like on a mounting area formed in the frame shape.
2A) (32B) (33) are formed, and the connection pads (3
Wirings extending from 2A, 32B, and 33 are formed on both surfaces of the substrate 30 through the through holes 34. Although not shown, a plurality of semiconductor elements such as LSI are fixedly mounted on the wiring. By the way, the connection pads (32A) (32B) for the scanning signal lines have connection pads (32X) (32Y) for correction which are connected to the correction terminals (15X) (15Y) of the display panel. Further, the correction connection pads (32X) (32Y) facing each other are formed by the wiring (36).

【0019】タブ基板(40)は、図3に示す如く、映
像信号及び走査信号を液晶表示パネルに供給する液晶駆
動ICチップ(41)を搭載しており、プリント基板
(30)上の駆動信号を入力する入力端子(42)と、
表示パネルに駆動信号を供給する出力端子(43)とを
備えている。この入力端子は前記プリント基板(30)
上の接続パッド(32A)(32B)と接続される。ま
たタブ基板(40)上には表示パネルの修正用端子(1
5X)(15Y)とプリント基板の修正用接続パッド
(32X)(32Y)とを接続する修正専用ライン(4
4)が設けられている。
As shown in FIG. 3, the tab board (40) has a liquid crystal drive IC chip (41) for supplying a video signal and a scanning signal to the liquid crystal display panel, and the drive signal on the printed board (30). An input terminal (42) for inputting
And an output terminal (43) for supplying a drive signal to the display panel. This input terminal is the printed circuit board (30)
It is connected to the upper connection pads (32A) (32B). Further, on the tab substrate (40), the correction terminal (1
5X) (15Y) and a dedicated correction line (4) for connecting the correction connection pads (32X) (32Y) of the printed circuit board
4) is provided.

【0020】上述した液晶表示パネル(20)とプリン
ト基板(30)とはタブ基板(40)を介して異方性導
電フィルムを用いた熱圧着等で電気的に接続される。
The liquid crystal display panel (20) and the printed circuit board (30) described above are electrically connected to each other via the tab substrate (40) by thermocompression bonding using an anisotropic conductive film.

【0021】本発明の液晶表示パネルの例えば走査信号
線の断線事故により走査信号が供給されず不灯となった
場合における救済する方法を説明する。
A method of relieving a liquid crystal display panel of the present invention in the case where a scan signal is not supplied and a lamp is in an unlit state due to a disconnection accident of a scan signal line will be described.

【0022】例えば走査信号線が図1に示す如く、×印
の部分で断線したとすると×印以降(×印より右側)部
には走査信号が供給されないために不灯となるが修正用
配線(17)を介して断線した走査信号線(15A)を
救済することができる。即ち、修正用配線(17)は前
述した如く、相対向する一群の全ての走査信号線(15
A)(15B)と夫々重畳するように配置されているた
め、断線した走査信号線(10A)(10B)と修正用
配線(17)との重畳部分にレーザ光を照射せしめ夫々
の金属を接続導通させる。更に図5に基づいて説明する
と、上述した様に修正用配線(17)と断線した走査信
号線(10A)(10B)との重畳部にレーザ光を矢印
方向(TFT基板側)から所定の出力で所定時間照射す
る。すると、走査信号線(10A)(10B)および修
正用配線(17)が夫々溶融するとともに絶縁膜(1
8)に穴(19)が形成され、その穴(19)の壁面に
溶融された修正用配線(17)の金属の一部が流れ込
み、修正用配線(17)を介して断線した走査信号線
(10)と修正用端子(15X)(15Y)とが接続さ
れることになる。
For example, as shown in FIG. 1, if the scanning signal line is broken at the portion marked with X, the scanning signal is not supplied to the portion after the portion marked with X (on the right side of the portion marked with X), but the wiring is uncorrected. The scanning signal line (15A) disconnected through (17) can be relieved. That is, as described above, the correction wiring (17) is formed by a group of all the scanning signal lines (15) facing each other.
A) and (15B) are arranged so as to overlap each other, so that the overlapping portions of the broken scanning signal lines (10A) (10B) and the correction wiring (17) are irradiated with laser light to connect the respective metals. Make it conductive. Further explaining with reference to FIG. 5, as described above, the laser light is output to the predetermined portion from the arrow direction (TFT substrate side) to the overlapping portion of the correction wiring (17) and the broken scanning signal line (10A) (10B). For a predetermined time. Then, the scanning signal lines (10A) (10B) and the correction wiring (17) are melted and the insulating film (1
8) A hole (19) is formed in the hole (19), a part of the molten metal of the repair wiring (17) flows into the wall surface of the hole (19), and the scanning signal line is broken through the repair wiring (17). (10) and the correction terminals (15X) and (15Y) are connected.

【0023】表示パネル上で断線ラインの修正が行われ
ると、タブ基板(40)の修正専用ライン(44)を介
して修正用端子(15X)(15Y)とプリント基板
(30)の修正用接続パッド(32X)(32Y)とが
接続される。その結果、表示パネルの断線した走査信号
線(10A)は相対向する側辺からデータ信号が供給さ
れることになる。尚、本実施例では、修正用配線(1
7)と修正用端子(15X)(15Y)とを1本しか設
けてないが表示パネルの画素数に応じて増加することで
多くの救済が可能となる。また、本実施例ではタブ基板
を用いて説明したがFPCを用いても同様に行えること
は説明するまでもない。
When the disconnection line is corrected on the display panel, the correction terminals (15X) (15Y) and the printed circuit board (30) are connected for correction through the dedicated correction line (44) of the tab substrate (40). The pads (32X) and (32Y) are connected. As a result, the data signal is supplied to the broken scan signal line (10A) of the display panel from the opposite side. In this embodiment, the correction wiring (1
Although only 7) and the correction terminals (15X) and (15Y) are provided, many reliefs can be made by increasing the number according to the number of pixels of the display panel. Further, in this embodiment, the tab substrate is used for the description, but it goes without saying that the same can be done by using the FPC.

【0024】[0024]

【発明の効果】以上に詳述した如く、本発明に依れば、
相対向する側辺から走査信号を入力する走査信号端子毎
に修正用の修正用配線を設けることにより、映像信号が
入力される映像信号線と修正用配線とを重畳されること
なく、断線した走査信号線を修正することが可能とな
る。その結果、従来の如き、修正配線と液晶表示パネル
の信号入力端子との間の寄生容量の発生を防止すること
ができる。
As described in detail above, according to the present invention,
By providing the correction wiring for correction for each scanning signal terminal for inputting the scanning signal from the opposite side, the video signal line to which the video signal is input and the correction wiring are disconnected without being overlapped. It becomes possible to modify the scanning signal line. As a result, it is possible to prevent the occurrence of parasitic capacitance between the correction wiring and the signal input terminal of the liquid crystal display panel as in the conventional case.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明にかかる液晶表示装置の液晶表示パネル
を示す平面図である。
FIG. 1 is a plan view showing a liquid crystal display panel of a liquid crystal display device according to the present invention.

【図2】本発明にかかる液晶表示装置のプリント基板を
示す平面図である。
FIG. 2 is a plan view showing a printed circuit board of a liquid crystal display device according to the present invention.

【図3】タブ基板を示す平面図である。FIG. 3 is a plan view showing a tab substrate.

【図4】図1のA−A断面図である。FIG. 4 is a cross-sectional view taken along the line AA of FIG.

【図5】修正後の図1のA−A断面図である。5 is a cross-sectional view taken along the line AA of FIG. 1 after correction.

【図6】従来の液晶表示装置の構成図である。FIG. 6 is a configuration diagram of a conventional liquid crystal display device.

【図7】従来の液晶表示装置の断線信号線救済の方法を
示す構成図である。
FIG. 7 is a configuration diagram showing a method of repairing a broken signal line of a conventional liquid crystal display device.

【符号の説明】[Explanation of symbols]

(20) 液晶表示パネル (10A)(10B) 走査信号線 (11) 映像信号線 (15A)(15B) 走査信号端子 (15X)(15Y) 修正用端子 (17) 修正用配線 (30) プリント基板 (40) タブ基板 (20) Liquid crystal display panel (10A) (10B) Scan signal line (11) Video signal line (15A) (15B) Scan signal terminal (15X) (15Y) Correction terminal (17) Wiring for correction (30) Printed circuit board (40) Tab substrate

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 互いに交差した複数の映像信号線および
走査信号線を配置した液晶表示パネルと、前記液晶表示
パネルに対応した枠状の表示窓を有し前記パネルの各信
号線に所望の信号を供給するためのプリント基板とから
なる液晶表示装置において、前記走査信号線および前記
映像信号線に信号を入力するためのTABあるいはFP
Cが固着される一群の走査信号端子および映像信号端子
が夫々相対向する側辺に形成され、いずれかの走査信号
線あるいは映像信号線が断線したときに修正を行うため
の修正用配線を前記走査信号端子あるいは前記映像信号
端子の近傍に夫々対応して設けたことを特徴とする液晶
表示装置。
1. A liquid crystal display panel in which a plurality of video signal lines and scanning signal lines intersecting each other are arranged, and a frame-shaped display window corresponding to the liquid crystal display panel, and a desired signal is provided to each signal line of the panel. In a liquid crystal display device including a printed circuit board for supplying a signal, a TAB or FP for inputting a signal to the scanning signal line and the video signal line.
A group of scanning signal terminals and video signal terminals to which C is fixed are formed on opposite sides, and a correction wiring for correcting when any of the scanning signal lines or the video signal lines is disconnected is provided. A liquid crystal display device, which is provided in the vicinity of a scanning signal terminal or the vicinity of the video signal terminal, respectively.
【請求項2】 前記走査信号端子あるいは前記映像信号
端子には修正用の専用端子が設けられ、前記専用端子か
ら前記修正用配線が延在されたことを特徴とする請求項
1記載の液晶表示装置。
2. The liquid crystal display according to claim 1, wherein the scanning signal terminal or the video signal terminal is provided with a dedicated correction terminal, and the correction wiring extends from the dedicated terminal. apparatus.
JP15331891A 1991-06-25 1991-06-25 Liquid crystal display device Pending JPH052176A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15331891A JPH052176A (en) 1991-06-25 1991-06-25 Liquid crystal display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15331891A JPH052176A (en) 1991-06-25 1991-06-25 Liquid crystal display device

Publications (1)

Publication Number Publication Date
JPH052176A true JPH052176A (en) 1993-01-08

Family

ID=15559876

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15331891A Pending JPH052176A (en) 1991-06-25 1991-06-25 Liquid crystal display device

Country Status (1)

Country Link
JP (1) JPH052176A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5734450A (en) * 1995-03-17 1998-03-31 Sharp Kabushiki Kaisha Active-matrix substrate and a defect correcting method thereof
US5767929A (en) * 1995-09-21 1998-06-16 Advanced Display Inc. Liquid crystal display apparatus with shorting ring

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0398023A (en) * 1989-09-12 1991-04-23 Sharp Corp Matrix type display device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0398023A (en) * 1989-09-12 1991-04-23 Sharp Corp Matrix type display device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5734450A (en) * 1995-03-17 1998-03-31 Sharp Kabushiki Kaisha Active-matrix substrate and a defect correcting method thereof
US5767929A (en) * 1995-09-21 1998-06-16 Advanced Display Inc. Liquid crystal display apparatus with shorting ring

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