JPS6018968B2 - liquid crystal display device - Google Patents
liquid crystal display deviceInfo
- Publication number
- JPS6018968B2 JPS6018968B2 JP54011060A JP1106079A JPS6018968B2 JP S6018968 B2 JPS6018968 B2 JP S6018968B2 JP 54011060 A JP54011060 A JP 54011060A JP 1106079 A JP1106079 A JP 1106079A JP S6018968 B2 JPS6018968 B2 JP S6018968B2
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- display device
- crystal display
- electrode substrates
- conductive
- 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
Links
Landscapes
- Liquid Crystal (AREA)
Description
【発明の詳細な説明】
本発明は液晶層を挟む一対の電極基板の電気的接続を改
良した液晶表示装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a liquid crystal display device in which electrical connection between a pair of electrode substrates sandwiching a liquid crystal layer is improved.
本発明の目的は、液晶表示装置を構成する液晶パネルの
上下導通剤に改良を加えることにより、耐環境性に強く
する点にある。An object of the present invention is to improve environmental resistance by improving the vertical conductive agent of a liquid crystal panel that constitutes a liquid crystal display device.
従来、液晶パネルの上下導通剤としては市販の導電性接
着剤が主に使用された。Conventionally, commercially available conductive adhesives have been mainly used as vertical conductive agents for liquid crystal panels.
しかし、市販品をそのまま使用する方法は、液晶パネル
の上下導通としては耐環境性−特に耐高温多湿性に劣る
欠点を有していた。また、耐環境性を向上させるために
、導電性接着剤に液晶パネルの上下電極基板間隔より大
きい径を持つ導電性金属粉末を混合させて、粉末を電極
基板間隔に押しつぶす方法も試みられた。However, the method of using commercially available products as is has the drawback of poor environmental resistance, especially resistance to high temperature and humidity, for vertical conduction of a liquid crystal panel. Additionally, in order to improve environmental resistance, a method has been attempted in which a conductive metal powder having a diameter larger than the gap between the upper and lower electrode substrates of a liquid crystal panel is mixed with a conductive adhesive, and the powder is crushed into the gap between the electrode substrates.
しかし、耐環境性一特に耐温度ショック、，耐高温多湿
性等には大した改善はなかった。本発明はかかる欠点を
除去し、液晶表示菱魔を構成する液晶パネルの液晶層を
挟む一対の電極基板の電気的接続部の信頼性を確実なも
のとすることを目的とする。本発明の液晶表示装置は、
少なくとも液晶と、該液晶を秋持する一対の電極基板と
、該一対の電極基板間に配置され前記液晶を囲むスベー
サとから構成された液晶表示装置において、スべ−サの
外側に一対の電極基板を電気的に接続する電気的接続部
を設け、電気的接続部材として導電物を混入させ導電性
をもたせた有機樹脂接着剤中に、約０．２〜５ムの径の
絶縁性粉末を１〜５０％ｗｔ混入させた導電性接着剤を
用いたことを特徴とする。However, there was no significant improvement in environmental resistance, particularly temperature shock resistance, high temperature and humidity resistance, etc. It is an object of the present invention to eliminate such drawbacks and to ensure the reliability of the electrical connection between a pair of electrode substrates sandwiching a liquid crystal layer of a liquid crystal panel constituting a liquid crystal display panel. The liquid crystal display device of the present invention includes:
In a liquid crystal display device comprising at least a liquid crystal, a pair of electrode substrates for holding the liquid crystal, and a spacer arranged between the pair of electrode substrates and surrounding the liquid crystal, a pair of electrodes is provided on the outside of the spacer. An electrical connection part for electrically connecting the substrate is provided, and an insulating powder with a diameter of about 0.2 to 5 mm is added to an organic resin adhesive mixed with a conductive substance to make it conductive as an electrical connection member. It is characterized by using a conductive adhesive mixed with 1 to 50% wt.
以下、本発明の液晶表示装置を構成する液晶パネルの実
施例を図面を用いて説明する。第１図は本発明の液晶表
示装置を構成する液晶パネルの断面図を示す。図に示す
ように、上電極基板１と下電極基板２に、それぞれ上電
極３と下電極４が形成されている。液晶５は上下電極基
板１，２に挟まれると共に、スベーサ６によって囲まれ
ている。上下電極基板１，・２の上下電極３，４の電気
的接続は、導電性を付与した樹脂部７と絶縁性の粉末部
８よりなるスべ−サ６の外側に露出した上下導通剤１川
こより構成されている。かかる樹脂部７は、ェポキシ樹
脂、フェノール、レゾルシノール、尿素、エチレン尿素
、メラミン、ベンゾグアナミン、フラン、キシレソ、な
どのホルムアルデヒド系樹脂、シリコン樹脂、不飽和ポ
リエステル樹脂、ポリウレタン樹脂、ポリジアリルフタ
レート樹脂等のうち、少なくとも１種類を含む有機樹脂
接着剤に、ＡいＡｇ、Ｃ等を混合させて導鰭性をもたせ
た導電性接着剤である。また、粉末部８は、上下電極基
板１，２間隔（一般に約１０仏の）より小さな径、約０
．２〜５ム凧のＡ〆２０３またはガラス粉末の少なくと
も一種類を含む絶縁体である。樹脂部７と粉末部８との
混合割合は、樹脂部１００％に対し、粉末部を約１〜５
０％ｗｔの割合である。液晶を挟む上下電極基板１，２
の上下電極３，４の電気的接続部材としてかかる上下導
通剤１０を用いると、絶縁性の粉末を混入したことによ
る電気的接続部の電気抵抗値の増大は無視できる程度の
ものであり、かつ、導電性を付与した樹脂部７を単独で
使用した場合に比べて、耐環境性−耐高温性、耐低温性
、耐緑性、耐温度ショック性、耐縞ショック性、耐高温
多湿性等は数十倍以上向上した。このように、本発明の
液晶表示装置は、液晶パネルに上下電極基板の上下導通
部を有するため一方の電極基板と外部駆動回路を接続す
ればパネルの表示駆動が可能となるが、その際、導電物
を混入させ導電性をもたせた有機樹脂接着剤中に約０．
２〜５〃径の絶縁性粉末を１〜５０％Ｍ混入させた導電
性接着剤により上下導通部を形成するという、注射針に
よる吐出、スクリーン印刷等量産性に富む方法での信頼
性ある上下電極基板の電気的接続が可能になる。Embodiments of a liquid crystal panel constituting a liquid crystal display device of the present invention will be described below with reference to the drawings. FIG. 1 shows a cross-sectional view of a liquid crystal panel constituting a liquid crystal display device of the present invention. As shown in the figure, an upper electrode 3 and a lower electrode 4 are formed on an upper electrode substrate 1 and a lower electrode substrate 2, respectively. The liquid crystal 5 is sandwiched between the upper and lower electrode substrates 1 and 2 and is surrounded by a spacer 6. Electrical connections between the upper and lower electrodes 3 and 4 of the upper and lower electrode substrates 1 and 2 are made using the upper and lower conductive agents 1 exposed on the outside of the baser 6 consisting of a conductive resin part 7 and an insulating powder part 8. It is composed of rivers. The resin portion 7 is made of formaldehyde resins such as epoxy resin, phenol, resorcinol, urea, ethylene urea, melamine, benzoguanamine, furan, xyreso, silicone resin, unsaturated polyester resin, polyurethane resin, polydiallyl phthalate resin, etc. This is a conductive adhesive made by mixing A, Ag, C, etc. with an organic resin adhesive containing at least one type of . Further, the powder part 8 has a diameter smaller than the interval between the upper and lower electrode substrates 1 and 2 (generally about 10 mm), and has a diameter of about 0.
．． It is an insulator containing at least one type of A203 of 2-5 μm kite or glass powder. The mixing ratio of the resin part 7 and the powder part 8 is approximately 1 to 5% of the powder part to 100% of the resin part.
The ratio is 0%wt. Upper and lower electrode substrates 1 and 2 sandwiching the liquid crystal
When the upper and lower conductive agent 10 is used as an electrical connection member for the upper and lower electrodes 3 and 4, the increase in the electrical resistance value of the electrical connection due to the insulating powder is negligible, and , environmental resistance - high temperature resistance, low temperature resistance, green resistance, temperature shock resistance, striped shock resistance, high temperature and humidity resistance, etc., compared to when the conductive resin part 7 is used alone. has improved several dozen times. As described above, since the liquid crystal display device of the present invention has the upper and lower conductive parts of the upper and lower electrode substrates in the liquid crystal panel, display driving of the panel is possible by connecting one electrode substrate to an external driving circuit. Approximately 0.0.
The upper and lower conductive parts are formed using a conductive adhesive containing 1 to 50% M of insulating powder with a diameter of 2 to 5 mm, which is a reliable method for mass production such as injection with a syringe needle or screen printing. Electrical connection of the electrode substrate becomes possible.
第１図は本発明の液晶表示装置に用いる液晶パネルの実
施例を示す。
１・・・・・・上電極基板、２…・・・下電極基板、３
・・・・・・上電極、４・・・・・・下電極、５・・・
・・・液晶、６・・・・・・スべ−サ、７・・・・・・
上下導通剤の樹脂部、８・・・・・・上下導通剤の粉末
部、１０・・・・・・上下導通剤。FIG. 1 shows an embodiment of a liquid crystal panel used in a liquid crystal display device of the present invention. 1... Upper electrode substrate, 2... Lower electrode substrate, 3
...Top electrode, 4...Bottom electrode, 5...
...LCD, 6...Subesa, 7...
Resin part of upper and lower conductive agent, 8... Powder part of upper and lower conductive agent, 10... Upper and lower conductive agent.
Claims (1)
と該一対の電極基板間に配置され前記液晶を囲むスペー
サとから構成された液晶表示装置において、前記スペー
サの外側に前記一対の電極基板を電気的に接続する電気
的接続部を設けると共に、該電気的接続部材として導電
物を混入させ導電性をもたせた有機樹脂接着剤中に約０
．２〜５μ径の絶縁性粉末を１〜５０％ｗｔ混入させた
導電性接着剤を用いたことを特徴とする液晶表示装置。1. In a liquid crystal display device comprising at least a liquid crystal, a pair of electrode substrates that sandwich the liquid crystal, and a spacer arranged between the pair of electrode substrates and surrounding the liquid crystal, the pair of electrode substrates are electrically connected to the outside of the spacer. In addition to providing an electrical connection part for electrical connection, about 0.0
．． A liquid crystal display device characterized in that a conductive adhesive containing 1 to 50% wt of insulating powder with a diameter of 2 to 5 μm is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54011060A JPS6018968B2 (en) | 1979-02-01 | 1979-02-01 | liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54011060A JPS6018968B2 (en) | 1979-02-01 | 1979-02-01 | liquid crystal display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55103526A JPS55103526A (en) | 1980-08-07 |
| JPS6018968B2 true JPS6018968B2 (en) | 1985-05-14 |
Family
ID=11767459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54011060A Expired JPS6018968B2 (en) | 1979-02-01 | 1979-02-01 | liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6018968B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5781236A (en) * | 1980-11-10 | 1982-05-21 | Seiko Epson Corp | Liquid crystal display device |
| TWI434119B (en) * | 2006-06-28 | 2014-04-11 | Creator Technology Bv | Improved common contact layout for flexible displays |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5327077B2 (en) * | 1973-08-31 | 1978-08-05 | ||
| JPS5545592B2 (en) * | 1973-11-20 | 1980-11-18 |
-
1979
- 1979-02-01 JP JP54011060A patent/JPS6018968B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55103526A (en) | 1980-08-07 |
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