JPH0745066Y2 - Liquid crystal display element - Google Patents
Liquid crystal display elementInfo
- Publication number
- JPH0745066Y2 JPH0745066Y2 JP1987189552U JP18955287U JPH0745066Y2 JP H0745066 Y2 JPH0745066 Y2 JP H0745066Y2 JP 1987189552 U JP1987189552 U JP 1987189552U JP 18955287 U JP18955287 U JP 18955287U JP H0745066 Y2 JPH0745066 Y2 JP H0745066Y2
- Authority
- JP
- Japan
- Prior art keywords
- substrate
- transparent electrode
- liquid crystal
- crystal display
- display element
- 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.)
- Expired - Lifetime
Links
Description
【考案の詳細な説明】 （技術分野） 本考案は、液晶表示素子の透明電極と駆動回路基板との
接続に好適な液晶表示素子の上下基板の構造に関するも
のである。TECHNICAL FIELD The present invention relates to a structure of upper and lower substrates of a liquid crystal display device suitable for connecting a transparent electrode of the liquid crystal display device and a driving circuit substrate.
（従来の技術） 第５図には、ドットマトリックス型のポリマーフイルム
を基板とした液晶表示素子が示されており、表示容量に
応じてポリマーフイルム上基板のＸ電極、Ｙ電極の各信
号線を駆動回路基板の駆動信号線と接続して駆動する
が、この電極ピッチが狭くなるにしたがい、引き出し電
極の幅も狭くなり、ポリマーフイルム基板上の透明電極
は僅かなストレスが加わることにより、接続時に断線を
起こしたり、また長期の使用時に僅かな外力により断線
を発生している。(Prior Art) FIG. 5 shows a liquid crystal display device using a dot-matrix type polymer film as a substrate. The signal lines of the X electrode and the Y electrode of the substrate on the polymer film are changed according to the display capacitance. Driven by connecting to the drive signal line of the drive circuit board, but as the electrode pitch becomes narrower, the width of the extraction electrode also becomes narrower, and a slight stress is applied to the transparent electrode on the polymer film substrate, which causes The wire breaks or is broken by a slight external force during long-term use.
第５図，第６図に示される液晶表示素子Ａは、64×256
ドット表示の正面図、中央断面図であり、ポリマーフイ
ルム上基板11の表面に設けられた偏光板17,15は回路基
板であり、16は上基板11と回路基板15とのＹ電極接続
部、20は下基板12と回路基板とのＸ電極接続部である。The liquid crystal display element A shown in FIGS. 5 and 6 is 64 × 256.
It is a front view of a dot display, a central cross-sectional view, the polarizing plate 17, 15 provided on the surface of the polymer film upper substrate 11, is a circuit substrate, 16 is a Y electrode connection portion between the upper substrate 11 and the circuit substrate 15, Reference numeral 20 is an X electrode connecting portion between the lower substrate 12 and the circuit board.
第３図には、第２図の端部の拡大した図面であり、ポリ
マーフイルム上基板11とポリマーフイルム下基板12との
間にシール材14が配置され、内側に透明電極13を一定間
隔で設けた上基板11の端部は下基板12より外側に延出さ
せ、信号線19を備えた駆動回路基板15にヒートシールコ
ネルタ21を介して接続される。FIG. 3 is an enlarged view of the end portion of FIG. 2, in which a sealing material 14 is arranged between the upper and lower polymer film substrates 11 and 12, and transparent electrodes 13 are arranged at regular intervals inside. An end portion of the provided upper substrate 11 is extended to the outside of the lower substrate 12 and is connected to a drive circuit substrate 15 provided with a signal line 19 via a heat seal connector 21.
この際、上基板11は下基板12の下方位置に配置された駆
動回路基板15側にシール材14の端位置で折り曲げられ、
この上基板11の内側に形成された透明電極13が僅かな上
基板11の下方への曲がりにより、下基板12の隅部12aと
接触を生じ、これが前述の透明電極の断線の原因となっ
ている。At this time, the upper substrate 11 is bent at the end position of the sealing material 14 on the side of the drive circuit substrate 15 disposed below the lower substrate 12,
The slight bending of the transparent electrode 13 formed inside the upper substrate 11 to the lower side of the upper substrate 11 causes contact with the corner 12a of the lower substrate 12, which causes the disconnection of the transparent electrode. There is.
このため、細かいピッチ間隔で幅狭の透明電極の接続の
信頼性が悪く、ファインパターンでの接続が難しく、表
示容量の大きいパネルが実現できなかった。For this reason, the reliability of the connection of the transparent electrodes having a narrow pitch and a narrow width is poor, the connection in the fine pattern is difficult, and a panel having a large display capacity cannot be realized.
なお、18は下基板の偏光板である。In addition, 18 is a polarizing plate of the lower substrate.
（考案の目的） 本考案は、前述した如き、ポリマーフイルム上基板の透
明電極が下基板の端部側に変位しても、上基板の透明電
極の断線を生じることがない手段を提供するものであ
り、ポリマーフイルム基板の透明電極と駆動回路基板と
の接続を確実に保証しうる信頼性を向上させる手段を提
供することを目的とするものである。(Object of the Invention) As described above, the present invention provides means for preventing disconnection of the transparent electrode of the upper substrate even when the transparent electrode of the upper substrate of the polymer film is displaced to the end side of the lower substrate. It is an object of the present invention to provide a means for improving the reliability capable of reliably ensuring the connection between the transparent electrode of the polymer film substrate and the drive circuit board.
（考案の構成） 本考案は、前記目的を達成するため、ポリマーフイルム
により形成した液晶表示素子の基板の一方を他方の基板
の端部より長く形成し、その一方の基板の端部の内側に
設けた透明電極を駆動回路基板に接続するように構成し
た液晶表示素子において、一方の基板に設けた透明電極
に対向する他方の基板の端部には、一方の基板の透明電
極の幅より広い幅の切り欠き部を透明電極に対応した位
置に設けたことを特徴とするものである。(Structure of the Invention) In order to achieve the above object, the present invention forms one of the substrates of a liquid crystal display element formed of a polymer film longer than the end of the other substrate, and the inside of the end of the one substrate is formed. In the liquid crystal display element configured to connect the provided transparent electrode to the drive circuit board, the width of the transparent electrode of one substrate is wider than the end of the other substrate facing the transparent electrode provided on one substrate. It is characterized in that a notch portion having a width is provided at a position corresponding to the transparent electrode.
以下、本考案の実施例を図面に基づいて説明する。Embodiments of the present invention will be described below with reference to the drawings.
第１図，第２図には、本考案の液晶表示素子における透
明電極を設けた上基板と下基板との関連の一部を示す平
面図、側面図を示している。1 and 2 are a plan view and a side view showing a part of the relation between an upper substrate and a lower substrate provided with transparent electrodes in a liquid crystal display device of the present invention.
上基板１、下基板２としてポリエステルフイルムを用
い、上基板１の下面には信号用透明電極3,3,…を形成
し、上基板１の信号用透明電極3,3,…は前述したように
駆動回路基板と接続しうるように、上基板１は下基板２
の端部2aより延出して形成される。４はシール材であ
る。A polyester film is used as the upper substrate 1 and the lower substrate 2, and the signal transparent electrodes 3, 3, ... Are formed on the lower surface of the upper substrate 1, and the signal transparent electrodes 3, 3 ,. So that the upper substrate 1 and the lower substrate 2 can be connected to the driving circuit substrate.
It is formed so as to extend from the end portion 2a. 4 is a sealing material.
本考案において、下基板２の端部2aには、上基板１に設
けた信号用透明電極3,3,…に対向する位置に切り欠き部
2b,2b,…を形成している。In the present invention, the end portion 2a of the lower substrate 2 has a notch at a position facing the signal transparent electrodes 3, 3, ...
2b, 2b, ... are formed.
この切り欠き部2b,2b,…は、上基板１の信号用透明電極
3,3,…の幅ａよりもやや広い幅ｂを形成しているので、
第７図に示すように、上基板１の信号用透明電極3,3,…
と駆動回路基板とが接続されて、上基板１の下面と下基
板２の端部2aと接触しても、上基板１の信号用透明電極
3,3,…は、下基板２の端部2aに形成された切り欠き部2
b,2b,…により、下基板２の端部2aと接触することがな
い。The notches 2b, 2b, ... Are transparent electrodes for signals on the upper substrate 1.
Since the width b is slightly wider than the width a of 3,3, ...
As shown in FIG. 7, the signal transparent electrodes 3, 3, ... Of the upper substrate 1
And the drive circuit board are connected to each other, and even when the lower surface of the upper board 1 and the end portion 2a of the lower board 2 come into contact with each other, the signal transparent electrode of the upper board 1
3, 3, ... Are notch portions 2 formed in the end portion 2a of the lower substrate 2.
Due to b, 2b, ..., It does not come into contact with the end 2a of the lower substrate 2.
上基板１に対して下曲げのストレスが加わっても、下基
板２の端部2aの切り欠き部2b,2b,…の存在により、上基
板１の下面の信号用透明電極3,3,…の形成されていない
部分が下基板２の切り欠き部2b,2b,…がない端部2aの部
分に当り、上基板１の信号用透明電極3,3は下基板２の
端部2aにより傷つけられることがない。Even if the downward bending stress is applied to the upper substrate 1, the presence of the cutouts 2b, 2b, ... At the end 2a of the lower substrate 2 causes the signal transparent electrodes 3, 3 ,. The portion where no mark is formed corresponds to the end portion 2a of the lower substrate 2 where the cutouts 2b, 2b, ... Are not present, and the signal transparent electrodes 3, 3 of the upper substrate 1 are damaged by the end portion 2a of the lower substrate 2. Never be.
下基板２の端部2aに形成される切り欠き部の形状として
は、第３図（イ）（ロ）（ハ）（ニ）（ホ）に示すよう
に、加工し易い形状2b1〜2b5を採用することができ、こ
の切り欠き部を形成する際、カットによるバリ発生方向
が上基板の信号用透明電極側に生じないように、下側に
加工することによって、上基板の信号用透明電極側に対
する損傷を防止することができる。As the shape of the cutout portion formed in the end portion 2a of the lower substrate 2, as shown in FIG. 3 (a), (b), (c), (d), and (e), the shapes 2b 1 to 2b that can be easily processed. 5 can be adopted, and when forming this notch, by processing the lower side so that the direction of burrs due to cutting does not occur on the signal transparent electrode side of the upper substrate, It is possible to prevent damage to the transparent electrode side.
第４図には、本考案の他の実施例として、上基板１の信
号用透明電極3,3,…をフレキシブルプラスチック回路基
板（FPC）５と接続する場合を示している。FPC基板を使
用する場合、接続時に信号用透明電極3,3,…には曲げに
よるストレスが加わることはなく、前述した実施例のよ
うな、接続時の不良発生はないが、装置稼動時において
液晶表示素子全体に加わるストレスによって、信号用透
明電極の断線が発生するのを防止することができる。As another embodiment of the present invention, FIG. 4 shows a case where the signal transparent electrodes 3, 3, ... Of the upper substrate 1 are connected to a flexible plastic circuit board (FPC) 5. When an FPC board is used, stress due to bending is not applied to the signal transparent electrodes 3, 3, ... At the time of connection, and there is no defect at the time of connection as in the above-mentioned embodiment, but during operation of the device. It is possible to prevent disconnection of the signal transparent electrode due to stress applied to the entire liquid crystal display element.
上基板１の信号用透明電極3,3,…はFPC基板５とヒート
シールコネクタを介して接続され、上基板１より短い下
基板２の端部2aには、前記実施例と同じく、信号用透明
電極3,3,…の幅より広い切り欠き部2b,2b,…が形成され
ている。The transparent electrodes for signal 3, 3, ... Of the upper substrate 1 are connected to the FPC substrate 5 via a heat seal connector, and the end portion 2a of the lower substrate 2 shorter than the upper substrate 1 has the same signal as the above embodiment. Cutout portions 2b, 2b, ... Wider than the width of the transparent electrodes 3, 3 ,.
第１図，第２図に示す本考案の実施例において接続時に
生じる断線発生率は従来のやり方のものと比較すると、
1280箇所の接続部分を10個テストして12箇所の断線を生
じた従来のものに比して、本考案の実施例では、1280箇
所の接続部分を100個テストして断線箇所は認められな
かった。従来のものにおいても、信号用透明電極の引き
出しの長さを大きくとることによって、断線の発生率を
低下することができるが、液晶表示素子が大きくなる欠
点があり、パネルの大型化、加工コストの増大をまねい
ていたが、本考案の構成により、このような欠点を解消
しうるものである。In the embodiment of the present invention shown in FIG. 1 and FIG. 2, the disconnection occurrence rate at the time of connection is compared with that of the conventional method.
In comparison with the conventional one in which 10 connection parts at 1280 locations were tested and 12 disconnections were generated, in the embodiment of the present invention, 100 connection parts at 1280 locations were tested and no disconnection location was found. It was Even in the conventional case, by increasing the length of the lead-out of the signal transparent electrode, it is possible to reduce the occurrence rate of wire breakage, but there is a drawback that the liquid crystal display element becomes large, and the panel size and processing cost are increased. However, the configuration of the present invention can eliminate such a drawback.
（考案の効果） 本考案の構成により、液晶表示素子の一方の基板の透明
電極と駆動回路基板との接続に伴い、また透明電極を有
する基板に加わる外力によって、他方の基板の端部によ
り一方の基板の透明電極を傷つけることがなく、しかも
透明電極の引出部を短くして装置を小型化し、透明電極
の断線をなくし、接続の信頼性を得ることができる効果
を有する。(Effects of the Invention) With the configuration of the present invention, when the transparent electrode of one substrate of the liquid crystal display element is connected to the drive circuit board, and by the external force applied to the substrate having the transparent electrode, one end of the other substrate There is an effect that the transparent electrode of the substrate is not damaged, the lead-out portion of the transparent electrode is shortened, the device is downsized, disconnection of the transparent electrode is eliminated, and connection reliability is obtained.
第１図は本考案の一実施例を示す平面図 第２図は第１図のＡ−Ａ′断面図 第３図（イ），（ロ），（ハ），（ニ），（ホ）は下基
板に形成される切り欠き部の形状を示す説明図 第４図は本考案の他の実施例を示す側面図 第５図は従来公知の液晶表示素子の平面図 第６図は第５図のＢ−Ｂ′断面図 第７図は第６図の一部拡大断面図である。 １……上基板、２……下基板、2b……切り欠き部、３…
…透明電極。1 is a plan view showing an embodiment of the present invention. FIG. 2 is a sectional view taken along the line AA 'in FIG. 1. FIGS. 3 (a), (b), (c), (d) and (e). Is an explanatory view showing the shape of a notch formed in the lower substrate. FIG. 4 is a side view showing another embodiment of the present invention. FIG. 5 is a plan view of a conventionally known liquid crystal display element. FIG. 7 is a partially enlarged sectional view of FIG. 6. 1 ... upper substrate, 2 ... lower substrate, 2b ... notch, 3 ...
… Transparent electrodes.
Claims (1)
素子の基板の一方を他方の基板の端部より長く形成し、
その一方の基板の端部の内側に設けた透明電極を駆動回
路基板に接続するように構成した液晶表示素子におい
て、一方の基板に設けた透明電極に対向する他方の基板
の端部には、一方の基板の透明電極の幅よりも広い幅き
切り欠き部を透明電極に対応した位置に設けたことを特
徴とする液晶表示素子。1. A substrate of a liquid crystal display element formed of a polymer film is formed to be longer than an end portion of the other substrate,
In the liquid crystal display element configured to connect the transparent electrode provided inside the end portion of the one substrate to the drive circuit board, at the end portion of the other substrate facing the transparent electrode provided on the one substrate, A liquid crystal display element, characterized in that a notch portion having a width wider than the width of the transparent electrode of one substrate is provided at a position corresponding to the transparent electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987189552U JPH0745066Y2 (en) | 1987-12-15 | 1987-12-15 | Liquid crystal display element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987189552U JPH0745066Y2 (en) | 1987-12-15 | 1987-12-15 | Liquid crystal display element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0194921U JPH0194921U (en) | 1989-06-22 |
| JPH0745066Y2 true JPH0745066Y2 (en) | 1995-10-11 |
Family
ID=31480577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987189552U Expired - Lifetime JPH0745066Y2 (en) | 1987-12-15 | 1987-12-15 | Liquid crystal display element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0745066Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60228421A (en) * | 1984-04-27 | 1985-11-13 | Shionogi & Co Ltd | Monoclonal anti-human-igg antibody and its preparation |
| JPS61174512A (en) * | 1985-01-30 | 1986-08-06 | Hitachi Ltd | Liquid-crystal display element |
-
1987
- 1987-12-15 JP JP1987189552U patent/JPH0745066Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60228421A (en) * | 1984-04-27 | 1985-11-13 | Shionogi & Co Ltd | Monoclonal anti-human-igg antibody and its preparation |
| JPS61174512A (en) * | 1985-01-30 | 1986-08-06 | Hitachi Ltd | Liquid-crystal display element |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0194921U (en) | 1989-06-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4381498B2 (en) | Liquid crystal display device with COG structure | |
| JP2003045648A (en) | Organic el display device | |
| JPH0745066Y2 (en) | Liquid crystal display element | |
| JP2002299773A (en) | Flexible wiring board and electro-optical device | |
| JPH0358025A (en) | Packaging method for display panel | |
| JPS6041928U (en) | Connection structure between liquid crystal display element and drive circuit board | |
| JP2002040462A (en) | Liquid crystal display device | |
| JP2595484B2 (en) | Connection structure between liquid crystal panel and integrated circuit for driving it | |
| JPH0828395B2 (en) | Flexible circuit board and liquid crystal display device | |
| JP4142042B2 (en) | Inspection method of liquid crystal display panel | |
| JPH048458Y2 (en) | ||
| JPH0792478A (en) | Liquid crystal display device | |
| KR19980050043U (en) | TPS structure of LCD | |
| JP2602218B2 (en) | Liquid crystal display device | |
| KR0140006Y1 (en) | Connecting structure of plate display element | |
| JP2864888B2 (en) | Liquid crystal display | |
| JP2655881B2 (en) | Liquid crystal display | |
| JPH0423263Y2 (en) | ||
| KR200151018Y1 (en) | Liquid crystal display device | |
| JPH0414949Y2 (en) | ||
| KR940008339Y1 (en) | Structure for liquid crystal display panel | |
| JPH04131958U (en) | light emitting diode display device | |
| KR0140114Y1 (en) | Chop on board form | |
| JPS61250672A (en) | Liquid crystal display unit | |
| JP3482881B2 (en) | Semiconductor mounting structure, liquid crystal device and electronic equipment |