JPS60181731A - Liquid-crystal display element - Google Patents

Liquid-crystal display element

Info

Publication number
JPS60181731A
JPS60181731A JP3602884A JP3602884A JPS60181731A JP S60181731 A JPS60181731 A JP S60181731A JP 3602884 A JP3602884 A JP 3602884A JP 3602884 A JP3602884 A JP 3602884A JP S60181731 A JPS60181731 A JP S60181731A
Authority
JP
Japan
Prior art keywords
electrode
sealing material
insulating film
substrate
crystal display
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
JP3602884A
Other languages
Japanese (ja)
Inventor
Yoshikuni Nagashima
長島　吉邦
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP3602884A priority Critical patent/JPS60181731A/en
Publication of JPS60181731A publication Critical patent/JPS60181731A/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
    • G02F1/1339—Gaskets; Spacers; Sealing of cells

Abstract

PURPOSE:To improve the reliability when temperature and humidity are high by providing an insulating film on an electrode substrate on which terminal part electrodes are formed from inside a sealing material to part of a terminal part electrode, and forming an insulating film on the other electrode substrate from inside the sealing material to an end surface of the electrode substrate. CONSTITUTION:Two electrode substrates 1 and 5 which have electrodes 2 and 6 on facing surfaces while a terminal electrode 3 is formed on one substrate are sealed with the sealing material 8; and the insulating film 14 is formed on the electrode substrate 1 provided with the terminal electrode 3 of a liquid-crystal display element formed containing liquid crystal 9 extending from inside the sealing material 8 to part of the electrode 3, and the insulating film 15 extending from inside the sealing material 8 to the end surface of the electrode substrate 5 is formed on the electrode substrate 5. Thus, the sealing material 8 of the substrates 1 and 5 and the part outside it are covered with the insulating films 14 and 15, so even if water drops stick on the substrates 1 and 5 outside of the sealing material 8, the deterioration of the sealing material 8 is prevented by the insulating films 14 and 15. Specially, the terminal part electrode 3 of the substrate 1 is covered with the insulating film 14 to prevent the electrocorrosion of the terminal part electrode and improve the reliability.

Description

【発明の詳細な説明】 〔発明の利用分野〕 本発明は液晶表示素子に関する。[Detailed description of the invention] [Field of application of the invention] The present invention relates to a liquid crystal display element.

〔発明の背景〕[Background of the invention]

従来の液晶表示素子は、第１図に示すような構造よりな
る。すなわち、上電極基板１には透明導電膜を形成し、
エツチングを行なうこと船こよりセグメント電極２及び
端子部電極３を形成し、セグメント電極２上に絶縁膜４
を形成し、この絶縁膜４を配向処理してなる。下電極基
板５にも同様に。A conventional liquid crystal display element has a structure as shown in FIG. That is, a transparent conductive film is formed on the upper electrode substrate 1,
Etching is performed to form the segment electrodes 2 and terminal electrodes 3 from the ship, and to form the insulating film 4 on the segment electrodes 2.
is formed, and this insulating film 4 is subjected to orientation treatment. The same goes for the lower electrode substrate 5.

透明導電膜を形成し、エツチングを行なうことによりコ
モン電極６を形成し、コモン電極６上に絶縁膜７を形成
し、この絶縁膜７を配向処理してなる。このように形成
された上下電極基板１．５は電極２．６面を対向させ、
周囲をシール材８でシールし、内部に液晶９を封入して
なる。A common electrode 6 is formed by forming a transparent conductive film and performing etching, an insulating film 7 is formed on the common electrode 6, and this insulating film 7 is subjected to an alignment treatment. The upper and lower electrode substrates 1.5 thus formed have electrodes 2.6 facing each other,
The periphery is sealed with a sealing material 8, and a liquid crystal 9 is sealed inside.

このような溝成よりなる液晶表示素子１０を液晶表示装
置として組立るには、第２図に示すように、端子部電極
３とプリント基板１１間に導電部を有する絶縁性ゴム１
２を介在させ、正面パネル１３に設けた突出片１３ａを
プリント基板１１の挿入穴（図示せず）に挿入し、突出
片１３ａを折曲げることｌこより正面パネル１３をプリ
ント基板１１に固定し、液晶表示素子１０をプリント基
板ｉｉｔこ保持させている。In order to assemble the liquid crystal display element 10 having such a groove structure as a liquid crystal display device, as shown in FIG.
2, insert the protruding piece 13a provided on the front panel 13 into an insertion hole (not shown) of the printed circuit board 11, bend the protruding piece 13a, thereby fixing the front panel 13 to the printed circuit board 11, A liquid crystal display element 10 is held on a printed circuit board.

しかしながら、かかる従来の液晶表示素子１０は、絶縁
膜４．７はシール材８の内側近くまでしか形成されてい
ないので、高温多湿時の結露がシール材８の外側の上下
電極基板１．５Ｉこ発生すると、シール材８に水分が入
り、シール材８が劣化し、シール材はがれが発生し、更
に水分が素子内部へ進行する。また絶縁膜４．７が劣化
し、隣り合ったセグメント電極２あるいは対向電極２．
６間でも電極反応が進み、気泡が発生するという欠点が
あった。特に端子部電極３に水滴が付着すると、電融に
より端子部電極３が断線し易く、また時間の経過と共に
電融端子の電極反応がシール材８部分に進行し、前記し
た欠点が発生し易い。However, in such a conventional liquid crystal display element 10, since the insulating film 4.7 is formed only up to the vicinity of the inside of the sealing material 8, dew condensation occurs on the upper and lower electrode substrates 1.5I outside the sealing material 8 during high temperature and humidity. When this occurs, moisture enters the sealing material 8, causing deterioration of the sealing material 8, causing peeling of the sealing material, and further moisture advancing into the inside of the element. In addition, the insulating film 4.7 deteriorates, and the adjacent segment electrodes 2 or counter electrodes 2.
There was a drawback that the electrode reaction proceeded even after 6 hours, and bubbles were generated. In particular, if water droplets adhere to the terminal electrode 3, the terminal electrode 3 is likely to be disconnected due to electrical fusion, and as time passes, the electrode reaction of the fused terminal progresses to the sealing material 8, resulting in the above-mentioned drawbacks. .

〔発明の目的〕[Purpose of the invention]

本発明の目的は、高温多湿時の信頼性を向上させること
ができる液晶表示素子を提供することζこある。An object of the present invention is to provide a liquid crystal display element that can improve reliability under high temperature and high humidity conditions.

〔発明の概要〕[Summary of the invention]

本発明は、上記目的を達成するためｌこ、対向面ζこそ
れぞれ電極が形成され、かつ一方に端子部電極が形成さ
れた２枚の電極基板をシール材でシールし、内部に液晶
を封入してなる液晶表示素子において、前記端子部電極
が形成された一方の電極基板に前記シール材の内側から
端子部電極の一部まで絶縁膜を形成し、他方の電極基板
に前記シール材の内側から電極基板端面まで絶縁膜を形
成したことを特徴とする。In order to achieve the above-mentioned object, the present invention seals two electrode substrates, each having an electrode formed on the opposite surface and a terminal electrode formed on one side, with a sealing material, and sealing a liquid crystal inside. In the liquid crystal display element, an insulating film is formed on one electrode substrate on which the terminal electrode is formed from inside the sealing material to a part of the terminal electrode, and on the other electrode substrate, an insulating film is formed on the inside of the sealing material. A feature is that an insulating film is formed from the electrode substrate to the end surface of the electrode substrate.

〔発明の実施例〕[Embodiments of the invention]

以下、本発明の一実施例を第３図により説明する。なお
、第１図及び第２図と同じ部材には同一符号を付し、そ
の説明を省略する。上電極基板１にはシール材８の内側
から絶縁性ゴム１２が配設される部分まで端子部電極３
上に絶縁膜１４が形成されている。また下電極基板５に
もシール材８の内側からこの下電極基板５の端面まで絶
縁膜１５が形成されている。前記絶縁膜１４．１５とし
ては１例えばＴｉＯ２人りＳｉｎ、などを用いる。An embodiment of the present invention will be described below with reference to FIG. Note that the same members as in FIGS. 1 and 2 are given the same reference numerals, and their explanations will be omitted. The upper electrode substrate 1 has a terminal electrode 3 from the inside of the sealing material 8 to the part where the insulating rubber 12 is disposed.
An insulating film 14 is formed thereon. Further, an insulating film 15 is also formed on the lower electrode substrate 5 from the inside of the sealing material 8 to the end surface of the lower electrode substrate 5. The insulating films 14 and 15 are made of, for example, TiO2 or Sin.

このように、上下電極基板１．５Ｉこおけるシール材８
の部分及びシール材８の外側部分は絶縁膜１４．１５で
覆ってなるので、高温高湿時に水滴がシール材８の外側
の上下電極基板１．５の部分に付着しても絶縁膜１４．
１５でシール材８の劣化が防止される。特に上電極基板
１の端子部電極３が絶縁膜１４で覆われていることによ
り、端子部電極３の電融が防止され、信頼性が向上する
。In this way, the sealing material 8 on the upper and lower electrode substrates 1.5I
, and the outside portion of the sealing material 8 are covered with the insulating film 14.15, so even if water droplets adhere to the portion of the upper and lower electrode substrates 1.5 outside the sealing material 8 during high temperature and high humidity, the insulating film 14.
15 prevents the sealing material 8 from deteriorating. In particular, since the terminal electrode 3 of the upper electrode substrate 1 is covered with the insulating film 14, electrical melting of the terminal electrode 3 is prevented and reliability is improved.

〔発明の効果〕〔Effect of the invention〕

以上の説明から明らかな如く、本発明によれば、対向面
にそれぞれ電極が形成され、かつ一方に端子部電極が形
成された２枚の電極基板をシール材でシールし、内部に
液晶を封入してなる液晶表示素子において、端子部電極
が形成された−　方の電極基板にシール材の内側から端
子部電極の一部まで絶縁膜を形成し、他方の電極基板に
シール材の内側から電極基板端面まで絶縁膜を形成して
なるので、高温高湿時のシール材の劣化が防止されると
共に、端子部電極の電融が防止され、信頼性が向上する
。As is clear from the above description, according to the present invention, two electrode substrates each having an electrode formed on their opposing surfaces and a terminal electrode formed on one side are sealed with a sealing material, and a liquid crystal is sealed inside. In the liquid crystal display element, an insulating film is formed on one electrode substrate on which the terminal electrode is formed from the inside of the sealing material to a part of the terminal electrode, and an insulating film is formed on the other electrode substrate from the inside of the sealing material. Since the insulating film is formed up to the end surface of the substrate, deterioration of the sealing material at high temperatures and high humidity is prevented, and electrical melting of the terminal electrodes is prevented, improving reliability.

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

桑 第１図は従来の液晶表示素子要部断面図、第２図は第１
図の液晶表示素子を用いた液晶表示装置の要部断面図、
第３図は本発明になる液晶表示素子の一実施例を示す要
部断面図である。 １・・・上電極基板、　２・・・セグメント電極、３・
・・端子部電極、　５・・・下電極基板、６・・・コモ
ン電極、　８・・・シール材、９・・・液晶、　１４．
１５・・・絶縁膜。Figure 1 is a cross-sectional view of the main parts of a conventional liquid crystal display element, and Figure 2 is a cross-sectional view of the main parts of a conventional liquid crystal display element.
A sectional view of the main parts of a liquid crystal display device using the liquid crystal display element shown in the figure,
FIG. 3 is a sectional view of a main part showing an embodiment of a liquid crystal display element according to the present invention. DESCRIPTION OF SYMBOLS 1... Upper electrode substrate, 2... Segment electrode, 3...
...Terminal part electrode, 5...Lower electrode substrate, 6...Common electrode, 8...Sealing material, 9...Liquid crystal, 14.
15...Insulating film.

Claims (1)

【特許請求の範囲】[Claims] 対向面にそれぞれ電極が形成され、かつ一方に端子部電
極が形成された２枚の電極基板をシール材でシールし、
内部に液晶を封入してなる液晶表示素子において、前記
端子部電極が形成された一方の電極基板に前記シール材
の内側から端子部電極の一部まで絶縁膜を形成し、他方
の電極基板に前記シール材の内側から電極基板端面まで
絶縁膜を形成したことを特徴とする液晶表示素子。Two electrode substrates each having electrodes formed on opposing surfaces and a terminal electrode formed on one side are sealed with a sealing material,
In a liquid crystal display element having a liquid crystal sealed inside, an insulating film is formed on one electrode substrate on which the terminal electrode is formed from the inside of the sealing material to a part of the terminal electrode, and on the other electrode substrate. A liquid crystal display element characterized in that an insulating film is formed from the inside of the sealing material to the end surface of the electrode substrate.
JP3602884A 1984-02-29 1984-02-29 Liquid-crystal display element Pending JPS60181731A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3602884A JPS60181731A (en) 1984-02-29 1984-02-29 Liquid-crystal display element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3602884A JPS60181731A (en) 1984-02-29 1984-02-29 Liquid-crystal display element

Publications (1)

Publication Number Publication Date
JPS60181731A true JPS60181731A (en) 1985-09-17

Family

ID=12458259

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3602884A Pending JPS60181731A (en) 1984-02-29 1984-02-29 Liquid-crystal display element

Country Status (1)

Country Link
JP (1) JPS60181731A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0854640A (en) * 1994-08-15 1996-02-27 Nec Corp Liquid crystal display device and its production
US6989879B1 (en) 1998-08-31 2006-01-24 Seiko Epson Corporation Liquid crystal panel and method of fabricating the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0854640A (en) * 1994-08-15 1996-02-27 Nec Corp Liquid crystal display device and its production
US6989879B1 (en) 1998-08-31 2006-01-24 Seiko Epson Corporation Liquid crystal panel and method of fabricating the same

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