JP2615960B2 - LCD color display - Google Patents
LCD color displayInfo
- Publication number
- JP2615960B2 JP2615960B2 JP1007206A JP720689A JP2615960B2 JP 2615960 B2 JP2615960 B2 JP 2615960B2 JP 1007206 A JP1007206 A JP 1007206A JP 720689 A JP720689 A JP 720689A JP 2615960 B2 JP2615960 B2 JP 2615960B2
- Authority
- JP
- Japan
- Prior art keywords
- display area
- liquid crystal
- electrode
- substrate
- 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.)
- Expired - Lifetime
Links
Landscapes
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、180度以上のねじれ角度を持つネマティッ
ク液晶の複屈折性を利用した液晶カラー表示装置に関す
る。Description: TECHNICAL FIELD The present invention relates to a liquid crystal color display device utilizing the birefringence of a nematic liquid crystal having a twist angle of 180 degrees or more.
従来の技術 従来の液晶カラー表示装置の一例を第６図，第７図に
示す。従来の液晶カラー表示装置においては、非表示部
80にはカラーフィルター、及び透明電極の形成がなされ
ていない為、カラーフィルター40の厚みと透明電極30の
厚みが加わった表示部の周縁部40Aと、非表示部80との
間に段差が生じる。2. Description of the Related Art FIGS. 6 and 7 show an example of a conventional liquid crystal color display device. In the conventional liquid crystal color display device, the non-display part
Since a color filter and a transparent electrode are not formed on 80, a step is generated between the peripheral portion 40A of the display unit where the thickness of the color filter 40 and the thickness of the transparent electrode 30 are added, and the non-display unit 80 .
発明が解決しようとする課題 液晶層の厚みが小さくなると、低次ツイスト領域と呼
ばれる液晶のねじれ角が正規のねじれ角よりπだけ小さ
いスプレイ配向状態の領域が生じる。特にこの低次ツイ
スト領域は、液晶層の厚みが大きく変化する地点や、電
圧印加部分と電圧無印加部分の境界線付近で生じやす
い。このため、従来の液晶カラー表示装置においては、
表示部と非表示部との境界線付近で低次ツイスト領域が
発生，成長し、表示品位を損ねるという問題点があっ
た。Problems to be Solved by the Invention When the thickness of the liquid crystal layer is reduced, a region in a splay alignment state called a low-order twist region in which the twist angle of the liquid crystal is smaller than the normal twist angle by π is generated. In particular, this low-order twist region is likely to occur at a point where the thickness of the liquid crystal layer changes greatly or near a boundary between a voltage applied portion and a voltage non-applied portion. For this reason, in the conventional liquid crystal color display device,
There is a problem that a low-order twist region is generated and grows near the boundary between the display unit and the non-display unit, thereby deteriorating the display quality.
本発明は、低次ツイスト領域の発生を防止し、また、
低次ツイスト領域が発生し成長した場合でも、表示部分
にまで及ぶ事を防止する事を目的としている。The present invention prevents the occurrence of low-order twist regions,
It is an object of the present invention to prevent a low-order twist region from reaching the display portion even when it grows.
課題を解決するための手段 上記課題を解決するために、本発明の液晶カラー表示
装置においては、カラーフィルターと透明電極とを備え
たフィルター基板と、前記フィルター基板に対向する電
極を備えた対向基板と、前記フィルター基板と対向基板
とを所定の間隙を介して接着シールするシール剤と、前
記間隙に封入した180度以上のねじれ角度を持つネマテ
ィック液晶層とを含み、前記フィルター基板及び対向基
板には前記液晶層を所定の信号に応じて駆動表示する表
示領域と、表示領域とは独立した非表示領域とを有し、
前記非表示領域の前記フィルター基板には前記カラーフ
ィルターの周縁部分と模擬電極とを具備し、前記非表示
領域の前記対向基板には模擬電極を具備し、前記シール
剤の形成位置の基板に対し平行方向の両側が前記非表示
領域の構成である。Means for Solving the Problems In order to solve the above problems, in the liquid crystal color display device of the present invention, a filter substrate having a color filter and a transparent electrode, and a counter substrate having an electrode facing the filter substrate And, a sealing agent for adhesively sealing the filter substrate and the counter substrate through a predetermined gap, and a nematic liquid crystal layer having a twist angle of 180 degrees or more enclosed in the gap, the filter substrate and the counter substrate Has a display area for driving and displaying the liquid crystal layer according to a predetermined signal, and a non-display area independent of the display area,
The filter substrate in the non-display area includes a peripheral portion of the color filter and a simulated electrode, and the counter substrate in the non-display area includes a simulated electrode. Both sides in the parallel direction are the configuration of the non-display area.
作用 上記のように構成された液晶カラー表示装置において
は、表示部分にカラーフィルター周縁部及び、透明電極
による段差が小さいため、表示部分における低次ツイス
ト領域の発生を防止することができる。また、非表示部
に存在するカラーフィルター周縁部及び模擬透明電極に
よる段差や、シール剤部分において低次ツイスト領域が
発生した場合においても、その地点より表示部までの距
離が十分であれば、低次ツイスト領域が表示部分にまで
及ぶ事を防止することができる。Effect In the liquid crystal color display device configured as described above, since the step due to the peripheral portion of the color filter and the transparent electrode is small in the display portion, it is possible to prevent the generation of a low-order twist region in the display portion. Further, even when a step due to the color filter peripheral portion and the simulated transparent electrode present in the non-display portion or a low-order twist region occurs in the sealant portion, if the distance from the point to the display portion is sufficient, the low It is possible to prevent the next twist area from reaching the display portion.
実施例 以下本発明の一実施例については図面を用いて説明す
る。Embodiment An embodiment of the present invention will be described below with reference to the drawings.
第１図において、硝子基板20の表示部には厚さ0.2μ
ｍの透明信号電極30を、非表示部にはその外縁がシール
剤の直前にまで延長された、厚さ0.2μｍの模擬透明信
号電極30Aをそれぞれ形成する。透明信号電極30の上に
は、厚さ１μｍのカラーフィルター40を形成し、更にこ
のカラーフィルター40の周縁部40Aを、透明信号電極30
より外側に延長し、模擬透明信号電極30Aの上に、その
外縁が一致するように形成する。もう片側の硝子基板21
の表示部には厚さ0.2μｍ透明走査電極31を、非表示部
にはその外縁がシール剤の直前にまで延長された、厚さ
0.2μｍの模擬透明走査電極31Aをそれぞれ形成する。更
にこの両硝子基板20,21それぞれの上に配向剤50,51を塗
布し、後述の方向にラビング処理を行う。この両硝子基
板50,51をセル厚が6.0μｍとなるようにシール剤70で貼
り合せ、270゜のねじれ角を持つように旋光性物質が添
加されたネマティック液晶60を注入する。この一対の硝
子基板20,21の外側には、後述する方向に偏光板10,11を
貼付する。第５図で、Rf,Rrは第１図における配向剤50,
51のラビング処理方向をそれぞれ示し、Pf,Prは第１図
における偏光板10,11の偏光軸の方向をそれぞれ示す。In FIG. 1, the display portion of the glass substrate 20 has a thickness of 0.2 μm.
The m transparent signal electrode 30 is formed, and a simulated transparent signal electrode 30A having a thickness of 0.2 μm is formed in the non-display portion, the outer edge of which is extended to just before the sealant. A color filter 40 having a thickness of 1 μm is formed on the transparent signal electrode 30, and a peripheral portion 40 A of the color filter 40 is further
It extends further outward and is formed on the simulated transparent signal electrode 30A so that its outer edges coincide. Glass substrate 21 on the other side
A transparent scanning electrode 31 having a thickness of 0.2 μm is displayed on the display section, and a non-display section is formed so that the outer edge thereof extends to just before the sealant.
Simulated transparent scanning electrodes 31A each having a thickness of 0.2 μm are formed. Further, alignment agents 50 and 51 are applied on the glass substrates 20 and 21, respectively, and rubbing is performed in a direction described later. The two glass substrates 50 and 51 are bonded together with a sealant 70 so that the cell thickness becomes 6.0 μm, and a nematic liquid crystal 60 to which a rotatory substance is added so as to have a twist angle of 270 ° is injected. Polarizing plates 10 and 11 are attached to the outside of the pair of glass substrates 20 and 21 in directions described later. In FIG. 5, Rf and Rr are the alignment agents 50,
Reference numeral 51 denotes a rubbing direction, and Pf and Pr denote the directions of the polarization axes of the polarizing plates 10 and 11 in FIG.
第２図の実施例においては、模擬透明信号電極30A
と、透明信号電極30及び模擬透明信号電極30A上に形成
されるカラーフィルター40の周縁部40A、それに模擬透
明走査電極31Aを、シール剤70の形成位置より外側にま
で延長して形成する。In the embodiment of FIG. 2, the simulated transparent signal electrode 30A
Then, the peripheral edge portion 40A of the color filter 40 formed on the transparent signal electrode 30 and the simulated transparent signal electrode 30A and the simulated transparent scanning electrode 31A are formed so as to extend outside the position where the sealant 70 is formed.
第３図の実施例においては、模擬透明信号電極30A
と、硝子基板20と透明信号電極30及び模擬透明信号電極
30Aの間に形成されるカラーフィルター40の周縁部40A、
それに模擬透明走査電極31Aを、シール剤70の形成位置
の直前にまで延長して形成する。In the embodiment of FIG. 3, the simulated transparent signal electrode 30A
And the glass substrate 20, the transparent signal electrode 30, and the simulated transparent signal electrode
Peripheral portion 40A of color filter 40 formed between 30A,
In addition, the simulated transparent scanning electrode 31A is formed to extend immediately before the position where the sealant 70 is formed.
第４図の実施例においては、模擬透明信号電極30A
と、硝子基板20と透明信号電極30及び模擬透明信号電極
30Aの間に形成されるカラーフィルター40の周縁部40A、
それに模擬透明走査電極31Aを、シール剤70の形成位置
より外側にまで延長して形成する。In the embodiment of FIG. 4, the simulated transparent signal electrode 30A
And the glass substrate 20, the transparent signal electrode 30, and the simulated transparent signal electrode
Peripheral portion 40A of color filter 40 formed between 30A,
In addition, the simulated transparent scanning electrode 31A is formed to extend outside the position where the sealant 70 is formed.
発明の効果 表示部分の周縁付近に発生する低次ツイスト領域の発
生を防止することができ、信頼性の高い表示品位の良好
な表示が得られ、またシール剤の設置位置を非表示部に
した構成により、シールを確実かつ強固にできるととも
に、フィルター基板の電極と対向基板の電極とのアライ
メント調整も容易になし得る効果も得られる。Advantageous Effects of Invention It is possible to prevent the occurrence of a low-order twist region generated near the periphery of the display portion, obtain a display with high display quality with high reliability, and set the installation position of the sealant in the non-display portion. With this configuration, the seal can be reliably and firmly provided, and the effect of easily adjusting the alignment between the electrode on the filter substrate and the electrode on the counter substrate can be obtained.
第１図〜第４図は、本発明の一実施例を示す液晶カラー
表示装置の主要部分の断面図、第５図は、第１図の下側
から見た、硝子基板上に塗布された配向剤のラビング方
向と、硝子基板外側に貼付された偏光板の偏光軸の方向
を示す説明図、第６図，第７図は、従来まで実施されて
いた液晶カラー表示装置の一例の主要部分の断面図であ
る。 10,11……偏光板、20……硝子基板、30,31……透明電
極、30A,31A……模擬透明電極、40……カラーフィルタ
ー、40A……カラーフィルターの周縁部、50,51……配向
剤、60……液晶層、80……非表示部、Rf……配向剤50の
ラビング処理方向、Rr……配向剤51のラビング処理方
向、Pf……偏光板10の偏光軸の方向、Pr……偏光板11の
偏光軸の方向。1 to 4 are sectional views of a main part of a liquid crystal color display device according to an embodiment of the present invention, and FIG. 5 is a view of a liquid crystal color display device coated on a glass substrate viewed from the lower side of FIG. FIGS. 6 and 7 show the rubbing direction of the alignment agent and the direction of the polarization axis of the polarizing plate attached to the outside of the glass substrate. FIGS. FIG. 10,11 ... Polarizing plate, 20 ... Glass substrate, 30,31 ... Transparent electrode, 30A, 31A ... Simulated transparent electrode, 40 ... Color filter, 40A ... Peripheral part of color filter, 50,51 ... ... Alignment agent, 60 ... Liquid crystal layer, 80 ... Non-display part, Rf ... Rubbing direction of alignment agent 50, Rr ... Rubbing direction of alignment agent 51, Pf ... Direction of polarization axis of polarizing plate 10 , Pr... Direction of the polarization axis of the polarizing plate 11.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平２−123325（ＪＰ，Ａ) 特開 昭63−26631（ＪＰ，Ａ) 特開 昭63−266427（ＪＰ，Ａ) 実開 平２−90827（ＪＰ，Ｕ) ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-123325 (JP, A) JP-A-63-26631 (JP, A) JP-A-63-266427 (JP, A) 90827 (JP, U)
Claims (1)
ィルター基板と、前記フィルター基板に対向する電極を
備えた対向基板と、前記フィルター基板と対向基板とを
所定の間隙を介して接着シールするシール剤と、前記間
隙に封入した180度以上のねじれ角度を持つネマティッ
ク液晶層とを含み、前記フィルター基板及び対向基板に
は前記液晶層を所定の信号に応じて駆動表示する表示領
域と、表示領域とは独立した非表示領域とを有し、前記
非表示領域の前記フィルター基板には前記カラーフィル
ターの周縁部分と模擬電極とを具備し、前記非表示領域
の前記対向基板には模擬電極を具備し、前記シール剤の
形成位置の基板に対し平行方向の両側が前記非表示領域
であることを特徴とする液晶カラー表示装置。1. A filter substrate provided with a color filter and a transparent electrode, a counter substrate provided with an electrode facing the filter substrate, and a seal for adhesively sealing the filter substrate and the counter substrate with a predetermined gap therebetween. And a nematic liquid crystal layer having a twist angle of 180 ° or more enclosed in the gap, a display area for driving and displaying the liquid crystal layer on the filter substrate and the counter substrate according to a predetermined signal, and a display area. And a non-display area independent of the non-display area, the filter substrate in the non-display area includes a peripheral portion of the color filter and a simulation electrode, and the counter substrate in the non-display area includes a simulation electrode. A liquid crystal color display device, wherein both sides of the sealant forming position in the direction parallel to the substrate are the non-display areas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1007206A JP2615960B2 (en) | 1989-01-13 | 1989-01-13 | LCD color display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1007206A JP2615960B2 (en) | 1989-01-13 | 1989-01-13 | LCD color display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02187724A JPH02187724A (en) | 1990-07-23 |
| JP2615960B2 true JP2615960B2 (en) | 1997-06-04 |
Family
ID=11659542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1007206A Expired - Lifetime JP2615960B2 (en) | 1989-01-13 | 1989-01-13 | LCD color display |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2615960B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11181767B2 (en) | 2018-10-31 | 2021-11-23 | Canon Kabushiki Kaisha | Semiconductor apparatus, module, camera, and equipment |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2782291B2 (en) * | 1990-08-30 | 1998-07-30 | キヤノン株式会社 | Ferroelectric liquid crystal color panel |
| JPH05203966A (en) * | 1992-01-29 | 1993-08-13 | Seiko Instr Inc | Color liquid crystal electrooptical device |
| JP5042467B2 (en) * | 2005-06-09 | 2012-10-03 | シャープ株式会社 | Liquid crystal display device and liquid crystal panel |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02123325A (en) * | 1988-11-01 | 1990-05-10 | Asahi Glass Co Ltd | Color liquid crystal display device |
-
1989
- 1989-01-13 JP JP1007206A patent/JP2615960B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11181767B2 (en) | 2018-10-31 | 2021-11-23 | Canon Kabushiki Kaisha | Semiconductor apparatus, module, camera, and equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02187724A (en) | 1990-07-23 |
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