JPH02187724A - LCD color display device - Google Patents
LCD color display deviceInfo
- Publication number
- JPH02187724A JPH02187724A JP1007206A JP720689A JPH02187724A JP H02187724 A JPH02187724 A JP H02187724A JP 1007206 A JP1007206 A JP 1007206A JP 720689 A JP720689 A JP 720689A JP H02187724 A JPH02187724 A JP H02187724A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- display device
- color filter
- color display
- simulated
- 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.)
- Granted
Links
Landscapes
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
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。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a liquid crystal color display device that utilizes the birefringence of 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８
０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３
０の厚みが加わった表示部の周縁部４０Ａと、非表示部
８ｏとの間に段差が生じる。2. Description of the Related Art An example of a conventional liquid crystal color display device is shown in FIGS. 6 and 7. In conventional liquid crystal color display devices, the non-display area 8
0 does not have a color filter or transparent electrode formed, so the thickness of the color filter 40 and the transparent electrode 3
A step is created between the peripheral edge portion 40A of the display portion to which the thickness of 0 is added and the non-display portion 8o.
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
スプレィ配向状態の領域が生しる。Problems to be Solved by the Invention When the thickness of the liquid crystal layer decreases, a region in a splayed alignment state, called a low-order twist region, occurs where the twist angle of the liquid crystal is smaller by π than the normal twist angle.
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
付近で生しやすい。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
ライス）？ｉＪＩ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。In particular, this low-order twist region is likely to occur at a point where the thickness of the liquid crystal layer changes significantly or near the boundary between a voltage-applied area and a voltage-free area. For this reason, in conventional liquid crystal color display devices, low-order rice (Rice)? There is a problem in that the iJI area develops and grows, impairing 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 aims to prevent the occurrence of low-order twist regions, and even if low-order twist regions occur and grow, to prevent them from extending to the display portion.
課題を解決するだめの手段
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、カラーフィルター周縁部の形成を表示部
分に留めず、非表示部分に拡大し、また、非表示部には
模擬透明電極を形成し、シール剤形成位置の直前にまで
至らしめることが効果的である。Means for Solving the Problems In order to solve the above problems, in the liquid crystal color display device of the present invention, the formation of the color filter peripheral portion is not limited to the display area, but is expanded to the non-display area, and the formation of the color filter periphery is expanded to the non-display area. It is effective to form a simulated transparent electrode and extend it to just before the position where the sealant is formed.
また、カラーフィルター周縁部、及び、模擬透明電極を
シール剤形成地点よりも更に拡大し、カラーフィルター
及び模擬透明電極の上から、シール剤を形成することも
効果的である。Furthermore, it is also effective to expand the color filter periphery and the simulated transparent electrode further than the sealant formation point and form the sealant from above the color filter and the simulated transparent electrode.
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 display portion has small steps due to the color filter peripheral portion and the transparent electrode, it is possible to prevent the occurrence of low-order twist regions in the display portion. In addition, even if a low-order twist region occurs in the color filter periphery and the simulated transparent electrode that exist in the non-display area or in the sealant area, if the distance from that point to the display area is sufficient, the It is possible to prevent the next twist area from extending to the display area.
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
。EXAMPLE An example 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０，２
μＩｎ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。更にこの両側子基板
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。この両側子基板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回で、Ｒｆ、Ｒｒは
第１図における配向剤５０５１のラビング処理方向をそ
れぞれ示し、Ｐｆ。In FIG. 1, the display portion of the glass substrate 20 has a thickness of 0.2 mm.
A transparent signal electrode 30 made of μIn is formed in the non-display portion, and a simulated transparent signal electrode 30A having a thickness of 0.2 μm and whose outer edge extends to just before the sealant is formed. A color filter 40 with a thickness of 1 μm is formed on the transparent signal electrode 30, and a peripheral portion 40A of the color filter 40 is formed on the transparent signal electrode 30.
is extended outward from the transparent signal electrode 30 and formed on the simulated transparent signal electrode 30A so that its outer edges coincide with each other. The display part of the glass substrate 21 on the other side has a thickness of 0.2 μm.
A simulated transparent scanning electrode 31A having a thickness of 0.2 μm is formed in the non-display portion of the transparent scanning electrode 31, and its outer edge extends to just in front of the sealant. Further, an alignment agent 50.51 is applied on each of the child substrates 20.21 on both sides,
Rubbing processing is performed in the direction described below. Both side child boards 50
．． 51 with sealant 70 so that the cell thickness is 6.0 μm.
A nematic liquid crystal 60 to which an optically active substance is added is injected so as to have a twist angle of 270°. A polarizing plate 10.11 is attached to the outside of the pair of glass substrates 20.21 in a direction to be described later. In the fifth time, Rf and Rr respectively indicate the rubbing direction of the alignment agent 5051 in FIG. 1, and 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。Pr indicates the direction of the polarization axis of the polarizing plates 10 and 11 in FIG. 1, respectively.
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 shown in FIG. 2, the simulated transparent signal electrode 30A, the peripheral 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 attached to the sealing agent 70. Formed by extending outward from the formation position.
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７て形成する。In the embodiment of FIG. 3, a simulated transparent signal electrode 30A, a peripheral portion 40A of a color filter 40 formed between the glass substrate 20, the transparent signal electrode 30, and the simulated transparent signal electrode 30A, and a simulated transparent scanning electrode 31A is extended 7 to just 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３ｉＡ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 shown in FIG. 4, a simulated transparent signal electrode 30A, a peripheral portion 40A of a color filter 40 formed between the glass substrate 20, the transparent signal electrode 30, and the simulated transparent signal electrode 30A, and a simulated transparent scanning electrode 3iA is formed extending outward from 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
表示が得られる。Effects of the Invention It is possible to prevent the occurrence of low-order twist regions near the periphery of the display portion, and to obtain a display with high reliability and good display quality.
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ヒング方
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、３１
Ａ・・・・・・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。
代理人の氏名 弁理士 粟野重孝 はか１名派
０Ａ
４ＯＡ1 to 4 are cross-sectional views of the main parts of a liquid crystal color display device showing one embodiment of the present invention, and FIG. FIG. 6 is an explanatory diagram showing the lahing direction of the alignment agent and the direction of the polarization axis of the polarizing plate attached to the outside of the glass substrate. FIG. 7 is a sectional view of the main parts of an example of a conventional liquid crystal color display device. 10.11...Polarizing plate, 20...Glass substrate, 30.31...Transparent electrode, 30A, 31
A: Simulated transparent electrode, 40: Color filter, 40A: Peripheral part of color filter, 50.51: Aligning agent, 60:・・・
Liquid crystal layer, 80...Non-display area, Rf...
Rubbing direction of alignment agent 50, Rr...Rubbing direction of alignment agent 51, Pf...Polarizing plate 10
Pr: the direction of the polarization axis of the polarizing plate 11; Name of agent: Patent attorney Shigetaka Awano 0A 4OA
Claims (3)
は含む複数の基板と、前記複数の基板に挟持された１８
０度以上のねじれ角度を持つネマティック液晶層より成
る、液晶カラー表示装置のカラーフィルターの周縁部分
が、非表示部にまで拡大、形成され、また、非表示部に
模擬透明電極を持つことを特徴とする液晶カラー表示装
置。(1) A plurality of substrates including at least one substrate having a color filter, and 18 sandwiched between the plurality of substrates.
The peripheral part of the color filter of a liquid crystal color display device consisting of a nematic liquid crystal layer with a twist angle of 0 degrees or more is expanded and formed into a non-display area, and the non-display area has a simulated transparent electrode. LCD color display device.
、基板同志を貼り合わせるためのシール剤の形成位置に
まで拡大、形成された請求項（１）記載の液晶カラー表
示装置。(2) The liquid crystal color display device according to claim (1), wherein the peripheral portion of the color filter and the simulated transparent electrode are expanded and formed to a position where a sealant for bonding the substrates is formed.
、シール剤の形成位置より更に外側にまで拡大、形成さ
れた請求項（１）記載の液晶カラー表示装置。(3) The liquid crystal color display device according to claim (1), wherein the peripheral portion of the color filter and the simulated transparent electrode are expanded and formed further outward than the position where the sealant is formed.
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 true JPH02187724A (en) | 1990-07-23 |
| JP2615960B2 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 (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04356021A (en) * | 1990-08-30 | 1992-12-09 | Canon Inc | Ferroelectric liquid crystal color panel |
| US5396356A (en) * | 1992-01-29 | 1995-03-07 | Seiko Instruments Inc. | Color liquid crystal device with non-driving electrodes under the sealant for providing an even cell gap |
| JP2006343530A (en) * | 2005-06-09 | 2006-12-21 | Sharp Corp | Liquid crystal display device and liquid crystal panel |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7378923B2 (en) | 2018-10-31 | 2023-11-14 | キヤノン株式会社 | Semiconductor devices, modules, cameras and equipment |
Citations (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
Patent Citations (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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04356021A (en) * | 1990-08-30 | 1992-12-09 | Canon Inc | Ferroelectric liquid crystal color panel |
| US5396356A (en) * | 1992-01-29 | 1995-03-07 | Seiko Instruments Inc. | Color liquid crystal device with non-driving electrodes under the sealant for providing an even cell gap |
| JP2006343530A (en) * | 2005-06-09 | 2006-12-21 | Sharp Corp | Liquid crystal display device and liquid crystal panel |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2615960B2 (en) | 1997-06-04 |
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