JPH04249224A - Liquid crystal display device - Google Patents
Liquid crystal display deviceInfo
- Publication number
- JPH04249224A JPH04249224A JP3015255A JP1525591A JPH04249224A JP H04249224 A JPH04249224 A JP H04249224A JP 3015255 A JP3015255 A JP 3015255A JP 1525591 A JP1525591 A JP 1525591A JP H04249224 A JPH04249224 A JP H04249224A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- crystal display
- driving
- display device
- flexible 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
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 55
- 239000000758 substrate Substances 0.000 claims abstract description 45
- 238000012937 correction Methods 0.000 claims abstract description 35
- 238000005476 soldering Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 abstract description 11
- 238000007747 plating Methods 0.000 abstract description 4
- 239000004020 conductor Substances 0.000 abstract 1
- 230000007547 defect Effects 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000004642 Polyimide Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 229920001721 polyimide Polymers 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000007261 regionalization Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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
- G02F1/136—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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/22—Secondary treatment of printed circuits
- H05K3/225—Correcting or repairing of printed circuits
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/36—Assembling printed circuits with other printed circuits
- H05K3/361—Assembling flexible printed circuits with other printed circuits
- H05K3/363—Assembling flexible printed circuits with other printed circuits by soldering
Landscapes
- Liquid Crystal (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は液晶表示パネルと駆動用
ＩＣを装着した基板で構成される液晶表示デバイスの断
線修正に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to repairing a disconnection in a liquid crystal display device consisting of a liquid crystal display panel and a substrate mounted with a driving IC.
【０００２】0002
【従来の技術】産業機器の多様化に伴い、薄型平面表示
装置は超小型のマイクロサイズから超大型のハイビジョ
ン対応まで幅広い用途に対しての展開がなされている。
また、平面表示装置の中で液晶を用いた表示装置は、テ
レビ受像機やＯＡ機器の表示、もしくは映像機器の表示
デバイスとして用いるため、高解像度の液晶表示デバイ
スを実現しなくてはならない。高解像度の液晶表示デバ
イスを構築するためには、液晶表示デバイス内の信号線
を増やし、また信号線の増加に伴って液晶パネルに配置
される端子電極数の増加と、配置ピッチの高密度化も余
儀なくされるものである。しかし、このように信号線を
増やし、信号線の幅も細くし、さらには端子数の増加と
高密度化が進むと、製造工程中の不良による信号線の断
線も増加してくる。信号線が断線すると断線箇所から先
へは信号が供給されなくなるため、表示画質の著しい低
下をもたらす。従って、これらの断線欠陥に対し、欠陥
の修正を行なう必要がある。2. Description of the Related Art With the diversification of industrial equipment, thin flat display devices are being developed for a wide range of uses, from ultra-small micro-sized devices to ultra-large high-definition devices. Further, among flat display devices, display devices using liquid crystals are used as displays in television receivers, OA equipment, or video equipment, so it is necessary to realize a high-resolution liquid crystal display device. In order to construct a high-resolution liquid crystal display device, the number of signal lines within the liquid crystal display device must be increased, and as the number of signal lines increases, the number of terminal electrodes arranged on the liquid crystal panel must also increase and the arrangement pitch must be increased. is also forced. However, as the number of signal lines increases, the width of the signal lines becomes thinner, and the number of terminals increases and density increases, the number of signal line breaks due to defects during the manufacturing process increases. When a signal line is disconnected, no signal is supplied beyond the disconnection point, resulting in a significant deterioration in display image quality. Therefore, it is necessary to correct these disconnection defects.
【０００３】従来の断線修正の方法は図５に示すように
、液晶表示パネル１内の信号線の断線箇所８を含む信号
線と接続されている端子電極５のｃ部とｃ’部、ｄ部と
ｄ’部に、修正用配線５１をハンダ付けで接続し、信号
を信号線の両側より供給していた。図５に示した方法で
は、修正用配線を端子電極部５に直接接続するように示
したが、端子電極部５に接続パッドを設けておき、そこ
に修正用配線５１を接続する方法もある。また、特開昭
５９−２０８５８１号公報に見られるように、液晶表示
パネルや駆動用ＩＣを装着した基板とは別に修正用配線
を形成した基板を設け、端子電極と前記基板上の修正用
配線とを接続し、信号を断線部分に供給する方法もある
。さらには、特開昭６４−５９３１９に見られるように
液晶表示エリア以外の部分に修正用配線を設け、端子電
極とを接続する方法も提案されている。As shown in FIG. 5, the conventional method for repairing a disconnection involves repairing parts c, c', and d of the terminal electrode 5 connected to the signal line including the disconnection point 8 of the signal line in the liquid crystal display panel 1. Correcting wiring 51 was connected to portions 1 and d' by soldering, and signals were supplied from both sides of the signal line. In the method shown in FIG. 5, the correction wiring is directly connected to the terminal electrode part 5, but there is also a method in which a connection pad is provided in the terminal electrode part 5 and the correction wiring 51 is connected thereto. . Furthermore, as seen in Japanese Patent Application Laid-Open No. 59-208581, a substrate on which correction wiring is formed is provided separately from the substrate on which the liquid crystal display panel and driving IC are mounted, and the terminal electrode and the correction wiring on the substrate are provided. There is also a method of connecting the wires and supplying the signal to the disconnected part. Furthermore, as seen in Japanese Unexamined Patent Publication No. 64-59319, a method has been proposed in which correction wiring is provided in a portion other than the liquid crystal display area and connected to a terminal electrode.
【０００４】0004
【発明が解決しようとする課題】しかしながら、従来の
断線欠陥の修正方法では、修正用配線をハンダ付けで端
子電極部に接続していたため、液晶表示デバイスが高解
像度化され端子電極部の間隔が狭くなってくると、修正
用配線を接続することが困難になる。また、液晶表示パ
ネルや駆動用ＩＣを装着した基板とは別に修正用配線を
形成した基板を設ける方法では、余分な基板を設けるた
め液晶表示デバイスの単価が高くなってしまう。さらに
、液晶表示エリア以外の部分に修正用配線を設ける方法
では、液晶パネルに余分な修正用配線を設けるため、液
晶表示デバイス全体が大きくなるという問題点を、有す
る。[Problems to be Solved by the Invention] However, in the conventional method for repairing disconnection defects, the repair wiring was connected to the terminal electrode part by soldering, but as liquid crystal display devices have become higher resolution, the spacing between the terminal electrode parts has become smaller. As the area becomes narrower, it becomes difficult to connect the wiring for correction. Further, in the method of providing a substrate on which correction wiring is formed separately from the substrate on which the liquid crystal display panel and driving IC are mounted, the unit price of the liquid crystal display device increases because of the provision of the extra substrate. Furthermore, the method of providing correction wiring in a portion other than the liquid crystal display area has the problem that the liquid crystal display device as a whole becomes larger because extra correction wiring is provided in the liquid crystal panel.
【０００５】[0005]
【課題を解決するための手段】本発明の液晶表示デバイ
スは、液晶表示パネルを駆動するための駆動用ＩＣを装
着したフレキシブル基板の裏面に修正用電極パッドを複
数個形成し、液晶表示パネル内で断線している信号線の
液晶表示パネルの両側で、前記修正用電極パッドを形成
した、前記液晶表示パネルを駆動するための駆動用ＩＣ
を装着した基板間において、前記修正用パッドを介して
引き回し配線により、接続している事を特徴とする。[Means for Solving the Problems] The liquid crystal display device of the present invention has a plurality of correction electrode pads formed on the back surface of a flexible substrate equipped with a driving IC for driving the liquid crystal display panel, and A driving IC for driving the liquid crystal display panel, wherein the correction electrode pads are formed on both sides of the liquid crystal display panel of the signal line that is disconnected.
It is characterized in that the boards on which the parts are mounted are connected by routing wiring via the correction pads.
【０００６】[0006]
【実施例】（実施例１）図１は、本発明の実施例を示す
主要断面図であって、図２は、図１の上視図である。図
１、図２において、１は液晶パネル、２はガラス基板上
の端子電極、３はＩＣ、４は修正用パッド、５はフレキ
シブル基板上の端子電極、６はフレキシブル基板、８は
パネル内での断線箇所を含む信号線、５１は引き回し配
線、を示している。Embodiment 1 FIG. 1 is a main sectional view showing an embodiment of the present invention, and FIG. 2 is a top view of FIG. In Figures 1 and 2, 1 is a liquid crystal panel, 2 is a terminal electrode on a glass substrate, 3 is an IC, 4 is a correction pad, 5 is a terminal electrode on a flexible substrate, 6 is a flexible substrate, and 8 is a terminal electrode on the panel. The signal line 51 includes the disconnection point, and 51 indicates the routing wiring.
【０００７】本発明の第１の実施例では、図１、図２に
示すように液晶表示デバイスを構成する液晶パネルの端
子電極部２に、異方性導電接着剤により固定されたる駆
動用ＩＣを装着したフレキシブル基板６の裏面（上方）
に修正用パッド４を形成し、対向するフレキシブル基板
６の裏面に形成されたる修正用パッド４に、引き回し配
線をもって接続されている。修正用パッドはフレキシブ
ル基板６の形成時に同一工程内でパターン形成と同時に
作成される。フレキシブル基板の作成方法は、予め用意
されたポリイミドテープをパンチングにより穴明け加工
をする。つぎに、フラッシュ銅めっきを施し、次いでフ
ォトレジストによりパターン形成し銅アディティブめっ
き法，スルホールめっき法により電極形成、修正パッド
の形成を行いフィルムエッチングを行ってデバイスホー
ル、スプロケットホールの形成、さらに銅フラッシュ層
のエッチングを経て、２層両面パターンテープができあ
がる。出来上がったテープに所定の駆動用ＩＣ３を搭載
して、フレキシブル基板６を、得るものである。このよ
うにして出来上がったフレキシブル基板６の各々の端子
電極５と、修正パッド４は正対してできている。In the first embodiment of the present invention, as shown in FIGS. 1 and 2, a driving IC is fixed to a terminal electrode portion 2 of a liquid crystal panel constituting a liquid crystal display device using an anisotropic conductive adhesive. Back side (upper side) of flexible board 6 with attached
A correction pad 4 is formed on the substrate, and is connected to the correction pad 4 formed on the back surface of the opposing flexible substrate 6 through a routing wiring. The correction pads are created at the same time as the pattern formation in the same process when the flexible substrate 6 is formed. The flexible substrate is created by punching holes in a polyimide tape prepared in advance. Next, flash copper plating is applied, followed by pattern formation using photoresist, electrode formation using copper additive plating method and through-hole plating method, correction pad formation, and film etching to form device holes and sprocket holes.Furthermore, copper flash After etching the layers, a two-layer double-sided patterned tape is completed. A predetermined driving IC 3 is mounted on the finished tape to obtain a flexible substrate 6. The terminal electrodes 5 and the correction pads 4 of the flexible substrate 6 thus completed are made to face each other directly.
【０００８】前記フレキシブル基板６の端子電極５を、
液晶表示パネル１の端子電極２に位置合わせを行い、フ
レキシブル基板６の端子電極５に仮圧着せしめたるとこ
ろの異方性導電接着剤をもって、液晶表示パネル１の端
子電極２に熱圧着した後に、駆動用ＩＣ３を装着したフ
レキシブル基板６をパネル基板に実装する。このように
して出来上がった液晶表示デバイスを端子電極部５の両
端で導通検査を行なう。[0008] The terminal electrode 5 of the flexible substrate 6 is
After aligning the terminal electrodes 2 of the liquid crystal display panel 1 and temporarily press-bonding the terminal electrodes 5 of the flexible substrate 6 to the terminal electrodes 2 of the liquid crystal display panel 1 using an anisotropic conductive adhesive, The flexible substrate 6 equipped with the driving IC 3 is mounted on a panel substrate. The thus completed liquid crystal display device is tested for continuity at both ends of the terminal electrode section 5.
【０００９】そして、断線箇所８を有する信号線が検出
されると、その信号線と接続されている両側のフレキシ
ブル基板６に配された修正用パッド４間のａ−ａ’部、
ｂ−ｂ’部で引き回し配線５１を用いて、ハンダ付けに
より接続する。このように構成することによって、断線
箇所８から先には信号が供給されなかったものが、端子
電極部→修正用パッド→引き回し配線→修正用パッド→
端子電極部→信号線なる経路で信号が供給されることに
なり、液晶表示デバイスの表示欠陥の修正を行なうこと
ができる。（実施例２）図３は、第２の実施例における
接続概念図である。また、図４はフレキシブル基板６の
断面図である。図３、図４において１は液晶パネル、２
はガラス基板上の端子電極、３はＩＣ、４は修正用パッ
ド、５はフレキシブル基板上の端子電極、６はフレキシ
ブル基板、７はポリイミド、９は保護レジストを示して
いる。第２の実施例では、図３に示すようにフレキシブ
ル基板６の端子電極の裏面に達するように配されたスル
ホールにより、端子電極５に正対して、かつ、修正用パ
ッド４が、千鳥に配置されるように設計、形成された修
正用パッド付きフレキシブル基板６に駆動用ＩＣ３を装
着した後、導電接着剤により液晶パネルに端子電極をア
ライメント後実装した。つぎに導通検査を行なった後、
発生している断線箇所の修正用パッド４に、別設計によ
り用意したフラットケーブルにより固定、接続した。When a signal line having a disconnection point 8 is detected, the a-a' portion between the repair pads 4 arranged on the flexible substrates 6 on both sides connected to the signal line,
Connection is made by soldering using the routing wiring 51 at the bb' section. With this configuration, signals are not supplied beyond the disconnection point 8 from the terminal electrode section → correction pad → routing wiring → correction pad →
A signal is supplied through a path from the terminal electrode section to the signal line, so that display defects in the liquid crystal display device can be corrected. (Embodiment 2) FIG. 3 is a conceptual diagram of connections in a second embodiment. Further, FIG. 4 is a cross-sectional view of the flexible substrate 6. In Figures 3 and 4, 1 is a liquid crystal panel, 2
3 indicates a terminal electrode on a glass substrate, 3 indicates an IC, 4 indicates a repair pad, 5 indicates a terminal electrode on a flexible substrate, 6 indicates a flexible substrate, 7 indicates polyimide, and 9 indicates a protective resist. In the second embodiment, as shown in FIG. 3, through holes arranged to reach the back surface of the terminal electrodes of the flexible substrate 6 allow the correction pads 4 to be arranged in a staggered manner directly facing the terminal electrodes 5. After mounting the driving IC 3 on the flexible substrate 6 with a correction pad designed and formed as described above, the terminal electrodes were aligned and mounted on the liquid crystal panel using a conductive adhesive. Next, after conducting a continuity test,
A flat cable prepared according to a different design was fixed and connected to the repair pad 4 at the location where the disconnection occurred.
【００１０】第１の実施例、第２の実施例において、引
き回し配線を用いるように説明したが、超細密ピッチ実
装においては、修正用パッドと修正用配線間をワイヤー
ボンデングで接続することもできる。以上のことにより
基板サイズの小型化、作業効率のアップが可能となる。[0010] In the first and second embodiments, it has been explained that routing wiring is used, but in ultra-fine pitch mounting, wire bonding may also be used to connect the repair pad and the repair wiring. can. The above makes it possible to reduce the board size and increase work efficiency.
【００１１】[0011]
【発明の効果】以上の説明のように本発明は、液晶表示
パネルを駆動するための駆動用ＩＣを装着したフレキシ
ブル基板の裏面に修正用電極パッドを複数個形成し、液
晶表示パネル内で断線している信号線の液晶表示パネル
の両側で、前記修正用電極パッドを形成した前記液晶表
示パネルを駆動するための駆動用ＩＣを装着した基板間
において前記修正用電極パッドを介して、引き回し線に
より接続したことにより、信号線が高密度に形成された
液晶表示デバイスであっても断線した信号線の修正が可
能であり、液晶表示デバイスの歩留まりを高めることが
できる。また、フレキシブル基板に修正用パッドを設け
、フレキシブル基板のパターン形成と同時に作製するた
め、余分な部品が要らず、さらには工程も簡略化できる
ため、コストアップが防げるなどの利点を有する。Effects of the Invention As described above, the present invention forms a plurality of correction electrode pads on the back surface of a flexible substrate mounted with a driving IC for driving a liquid crystal display panel, and prevents disconnection within the liquid crystal display panel. On both sides of the liquid crystal display panel, a wiring line is connected between the substrates mounted with driving ICs for driving the liquid crystal display panel on which the correction electrode pads are formed, via the correction electrode pads. Due to the connection, even in a liquid crystal display device in which signal lines are formed at a high density, a broken signal line can be repaired, and the yield of the liquid crystal display device can be increased. Furthermore, since the correction pad is provided on the flexible substrate and is manufactured at the same time as the patterning of the flexible substrate, no extra parts are required and the process can be simplified, which has the advantage of preventing cost increases.
【図１】本発明の第１の実施例を示す液晶表示デバイス
の主要断面図。FIG. 1 is a main cross-sectional view of a liquid crystal display device showing a first embodiment of the present invention.
【図２】図１の上視図。FIG. 2 is a top view of FIG. 1.
【図３】本発明の第２の実施例を示す液晶表示デバイス
の接続概念図。FIG. 3 is a conceptual diagram of connections of a liquid crystal display device showing a second embodiment of the present invention.
【図４】本発明のフレキシブル基板の断面図。FIG. 4 is a cross-sectional view of the flexible substrate of the present invention.
【図５】従来の液晶表示デバイスの修正方法を示す主要
上視図。FIG. 5 is a main top view showing a conventional method of repairing a liquid crystal display device.
１ 液晶パネル
２ ガラス基板上の端子電極
３ ＩＣ
４ 修正用パッド
５ フレキシブル基板の端子電極
６ フレキシブル基板
７ ポリイミド
８ パネル内での断線箇所を含む信号線９ 保護レ
ジスト
ａ 修正用パッドとの接続部
ａ’ 〃
ｂ 〃
ｂ’ 〃1 Liquid crystal panel 2 Terminal electrode on glass substrate 3 IC 4 Repair pad 5 Terminal electrode on flexible substrate 6 Flexible substrate 7 Polyimide 8 Signal line 9 including the disconnected part in the panel Protective resist a Connection part a with the repair pad ' 〃 b 〃 b' 〃
Claims (4)
駆動するための駆動用ＩＣを装着した基板で構成される
液晶表示デバイスであって、前記液晶表示パネルを駆動
するための駆動用ＩＣを装着した、フレキシブル基板の
裏面に修正用電極パッドを複数個形成し、液晶表示パネ
ル内で断線している信号線の液晶表示パネル外の両側で
、前記修正用電極パッドを形成した、前記液晶表示パネ
ルを駆動するための駆動用ＩＣを装着した基板間におい
て、前記修正用電極パッドを介して引き回し配線により
接続していることを特徴とする液晶表示デバイス。1. A liquid crystal display device comprising a liquid crystal display panel and a substrate mounted with a driving IC for driving the liquid crystal display panel, wherein the driving IC for driving the liquid crystal display panel is mounted. A plurality of correction electrode pads are formed on the back surface of the attached flexible substrate, and the correction electrode pads are formed on both sides outside the liquid crystal display panel of a signal line that is disconnected within the liquid crystal display panel. A liquid crystal display device characterized in that substrates mounted with driving ICs for driving the panel are connected by routing wiring via the correction electrode pads.
、フレキシブル基板上に形成されていることを特徴とす
る請求項１記載の液晶表示デバイス。2. The liquid crystal display device according to claim 1, wherein the correction electrode pad is formed on a flexible substrate other than the liquid crystal display panel.
端子電極と、修正用電極パッドとを同一フレキシブル基
板内において、表面にパターンと端子電極を、裏面に修
正用パッドを配し、且つスルホールを介して導通をはか
っていることを特徴とする請求項１記載の液晶表示デバ
イス。3. The terminal electrodes of the flexible substrate on which the driving IC is mounted and the correction electrode pads are placed on the same flexible substrate, with the pattern and terminal electrodes on the front surface, the correction pads on the back surface, and through-holes. 2. The liquid crystal display device according to claim 1, wherein the liquid crystal display device is electrically connected through the conductive layer.
修正用電極パッドと、対向する駆動用ＩＣを装着したフ
レキシブル基板の修正用電極パッドとを、引き回し配線
を介してパッド間をハンダ付けすることにより、接続し
ていることを特徴とする請求項１記載の液晶表示デバイ
ス。4. Soldering the repair electrode pad of the flexible substrate on which the driving IC is mounted and the correction electrode pad of the opposing flexible substrate on which the driving IC is mounted via routing wiring. 2. The liquid crystal display device according to claim 1, wherein the liquid crystal display device is connected by.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3015255A JPH04249224A (en) | 1991-02-06 | 1991-02-06 | Liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3015255A JPH04249224A (en) | 1991-02-06 | 1991-02-06 | Liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04249224A true JPH04249224A (en) | 1992-09-04 |
Family
ID=11883751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3015255A Pending JPH04249224A (en) | 1991-02-06 | 1991-02-06 | Liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04249224A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06301046A (en) * | 1993-03-30 | 1994-10-28 | Kodo Eizo Gijutsu Kenkyusho:Kk | Liquid crystal display device |
| US5717556A (en) * | 1995-04-26 | 1998-02-10 | Nec Corporation | Printed-wiring board having plural parallel-connected interconnections |
| US6091553A (en) * | 1998-10-28 | 2000-07-18 | Samsung Electronics Co., Ltd. | Pickup actuator |
-
1991
- 1991-02-06 JP JP3015255A patent/JPH04249224A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06301046A (en) * | 1993-03-30 | 1994-10-28 | Kodo Eizo Gijutsu Kenkyusho:Kk | Liquid crystal display device |
| US5717556A (en) * | 1995-04-26 | 1998-02-10 | Nec Corporation | Printed-wiring board having plural parallel-connected interconnections |
| US6091553A (en) * | 1998-10-28 | 2000-07-18 | Samsung Electronics Co., Ltd. | Pickup actuator |
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