JPS60260021A - Liquid crystal display device - Google Patents

Liquid crystal display device

Info

Publication number
JPS60260021A
JPS60260021A JP11749484A JP11749484A JPS60260021A JP S60260021 A JPS60260021 A JP S60260021A JP 11749484 A JP11749484 A JP 11749484A JP 11749484 A JP11749484 A JP 11749484A JP S60260021 A JPS60260021 A JP S60260021A
Authority
JP
Japan
Prior art keywords
liquid crystal
display device
crystal display
films
electrodes
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
JP11749484A
Other languages
Japanese (ja)
Inventor
Shuji Sako
迫　周司
Tadashi Teranuma
寺沼　正
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.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Priority to JP11749484A priority Critical patent/JPS60260021A/en
Publication of JPS60260021A publication Critical patent/JPS60260021A/en
Pending legal-status Critical Current

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
    • G02F1/133345—Insulating layers

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Liquid Crystal (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)

Abstract

PURPOSE:To obtain a liquid crystal display device which obviates the leakage between electrodes by providing inorg. insulating films having a prescribed film thickness between org. oriented films and the electrodes. CONSTITUTION:The liquid crystal display device consists of glass substrates 11, the electrodes 12, the inorg. insulating films 13, the org. oriented films 14, a liquid crystal 15 and conductive foreign matter 16. The device is constituted by forming the prescribed electrode patterns on a pair of the glass substrates and coating the inorg. insulating films thereon by dipping into a soln. or printing by overcoating, etc. or depositing said films by evaporation such as sputtering method on the substrates. The org. oriented films are then formed thereon and the substrates are adhered to each other via a resin sealant consisting of epoxy, etc. to manufacture a cell case. The liquid crystal is injected into the case through a liquid crystal packing hole. The packing hole is sealed after the injection of the liquid crystal.

Description

【発明の詳細な説明】 く技術分野〉 本発明は、有機配向膜を用いた液晶表示装置に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a liquid crystal display device using an organic alignment film.

〈従来技術〉 液晶表示装置用基板の液晶と接する表面に液晶配向用被
膜として有機配向膜を用いた場合、対向電極間に導電性
異物が存在すれば、外部からのストレスにより前記異物
が液晶配向用被膜を破壊し、対向電極間でリークを起こ
す。第２図に、その様子を示す。図に於て、１はガラス
基板、２は電極、３は有機配向膜、４は液晶、５は導電
性異物である。<Prior art> When an organic alignment film is used as a coating for liquid crystal alignment on the surface of a substrate for a liquid crystal display device that is in contact with liquid crystal, if a conductive foreign substance exists between opposing electrodes, the foreign substance may be caused to align the liquid crystal due to external stress. It destroys the protective film and causes leakage between the opposing electrodes. Figure 2 shows the situation. In the figure, 1 is a glass substrate, 2 is an electrode, 3 is an organic alignment film, 4 is a liquid crystal, and 5 is a conductive foreign substance.

〈発明の目的〉 それ故に、本発明の目的は、上記のような電極間リーク
の生じない液晶表示装置を提供することにある。<Object of the Invention> Therefore, an object of the present invention is to provide a liquid crystal display device in which the above-mentioned leakage between electrodes does not occur.

〈発明の構成〉 本発明の液晶表示装置は、有機配向膜（例えば、ポリイ
ミド膜等）を用いた液晶表示装置に於て、上記有機配向
膜と電極との間に、リーク防止効果を奏するに充分な膜
厚の無機絶縁膜（例えば、５ｉ０２膜等）を設けたこと
を特徴とするものである。<Structure of the Invention> The liquid crystal display device of the present invention is a liquid crystal display device using an organic alignment film (for example, a polyimide film, etc.), which has a leak prevention effect between the organic alignment film and the electrodes. It is characterized in that an inorganic insulating film (eg, 5i02 film, etc.) of sufficient thickness is provided.

〈実施例〉 本発明の液晶表示装置は、有機配向膜に比べ硬度に優れ
る無機絶縁膜を、前記有機配向膜の下に、塗布または蒸
着等によって形成し、外部ストレスによって導電性異物
が有機配向膜を破壊して対向電極間でリークを起こすの
を防ぐものである。第１図に、本発明に係る液晶表示装
置に於てセル内に導電性異物が存在した場合の様子を示
す。図に於て、１１はガラス基板、１２は電極、１３は
無機絶縁膜（Ｓｉ０２等）、１４は有機配向膜、１５は
液晶、１６は導電性異物である。図に示すように、無機
絶縁膜１３によって、対向電極間でのリークは防止され
るものである。<Example> In the liquid crystal display device of the present invention, an inorganic insulating film having higher hardness than an organic alignment film is formed by coating or vapor deposition under the organic alignment film, and conductive foreign matter is caused to align with the organic alignment by external stress. This prevents the membrane from being destroyed and leakage occurring between opposing electrodes. FIG. 1 shows the situation when a conductive foreign substance is present in a cell in a liquid crystal display device according to the present invention. In the figure, 11 is a glass substrate, 12 is an electrode, 13 is an inorganic insulating film (Si02, etc.), 14 is an organic alignment film, 15 is a liquid crystal, and 16 is a conductive foreign substance. As shown in the figure, the inorganic insulating film 13 prevents leakage between opposing electrodes.

以下、本発明に係る液晶表示装置の製造方法を説明する
。Hereinafter, a method for manufacturing a liquid crystal display device according to the present invention will be explained.

一対のガラス基板に所定の電極パターンを形成し、その
上に、無機絶縁膜を、溶液への浸漬あるいはオーバーコ
ートによる印刷等により塗布、またはスパッタ方式等に
よシ蒸着する。次いで、有機配向膜を形成し、エポキシ
系等のレジン・シール材を介して貼り合わせを行ない、
セル容器を作り、容器内に液晶充填孔より液晶を注入す
る。液晶注入後、前記充填孔を封止する。A predetermined electrode pattern is formed on a pair of glass substrates, and an inorganic insulating film is applied thereon by immersion in a solution, printing with an overcoat, or vapor-deposited by a sputtering method. Next, an organic alignment film is formed and bonded via a resin sealant such as epoxy.
A cell container is made and liquid crystal is injected into the container through the liquid crystal filling hole. After the liquid crystal is injected, the filling hole is sealed.

例えば、上記条件にて作成した２５０＋＋＋＋＋Ｘ１０
０闘の表示面積をもつ液晶表示装置にて、無機絶縁膜の
膜厚を下記の表のように変えた場合、５に９／ｃｄの外
部ヌトレヌによシ発生する対向電極間リーク数は、膜厚
１５０Ａ以上にて確認されなくなシ、非常に良好な結果
が得られた。For example, 250++++++X10 created under the above conditions
In a liquid crystal display device with a display area of 0, when the thickness of the inorganic insulating film is changed as shown in the table below, the number of leaks between the opposing electrodes due to external stress of 5 to 9/cd is: This was not observed when the film thickness was 150A or more, and very good results were obtained.

〈発明の効果〉 以上詳細に説明したように本発明によれば、有機配向膜
を用いた液晶表示装置に於て、セル内に導電性異物が存
在しても、それによって対向電極間リークが生じること
のない、きわめて有用な液晶表示装置を提供することが
できるも゛のである。<Effects of the Invention> As described in detail above, according to the present invention, even if conductive foreign matter exists in the cell in a liquid crystal display device using an organic alignment film, leakage between opposing electrodes is prevented. Therefore, it is possible to provide an extremely useful liquid crystal display device that does not cause such problems.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図及び第２図は断面図である。 符号の説明 １．１１ニガラス基板、　２，１２：電極、３．１４：
有機配向膜、　４，１５：液晶、５．１６：導電性異物
、　１３：無機絶縁膜。 １１４− 第７図 第２図1 and 2 are cross-sectional views. Explanation of symbols 1.11 Glass substrate, 2, 12: Electrode, 3.14:
Organic alignment film, 4, 15: Liquid crystal, 5.16: Conductive foreign matter, 13: Inorganic insulating film. 114- Figure 7 Figure 2

Claims (1)

【特許請求の範囲】[Claims] 】、有機配向膜を用いた液晶表示装置に於て、上記有機
配向膜と電極との間に所定膜厚の無機絶縁膜を設けたこ
とを特徴とする液晶表示装置。A liquid crystal display device using an organic alignment film, characterized in that an inorganic insulating film of a predetermined thickness is provided between the organic alignment film and the electrode.
JP11749484A 1984-06-06 1984-06-06 Liquid crystal display device Pending JPS60260021A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11749484A JPS60260021A (en) 1984-06-06 1984-06-06 Liquid crystal display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11749484A JPS60260021A (en) 1984-06-06 1984-06-06 Liquid crystal display device

Publications (1)

Publication Number Publication Date
JPS60260021A true JPS60260021A (en) 1985-12-23

Family

ID=14713116

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11749484A Pending JPS60260021A (en) 1984-06-06 1984-06-06 Liquid crystal display device

Country Status (1)

Country Link
JP (1) JPS60260021A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0376648A2 (en) * 1988-12-26 1990-07-04 Sharp Kabushiki Kaisha A liquid crystal display apparatus
JPH032825A (en) * 1989-05-31 1991-01-09 Nippon Seiki Co Ltd Capsule type liquid crystal display device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58172621A (en) * 1982-04-02 1983-10-11 Hitachi Ltd Liquid crystal display element

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58172621A (en) * 1982-04-02 1983-10-11 Hitachi Ltd Liquid crystal display element

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0376648A2 (en) * 1988-12-26 1990-07-04 Sharp Kabushiki Kaisha A liquid crystal display apparatus
JPH032825A (en) * 1989-05-31 1991-01-09 Nippon Seiki Co Ltd Capsule type liquid crystal display device

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