JP2636592B2 - LCD substrate - Google Patents
LCD substrateInfo
- Publication number
- JP2636592B2 JP2636592B2 JP3247521A JP24752191A JP2636592B2 JP 2636592 B2 JP2636592 B2 JP 2636592B2 JP 3247521 A JP3247521 A JP 3247521A JP 24752191 A JP24752191 A JP 24752191A JP 2636592 B2 JP2636592 B2 JP 2636592B2
- Authority
- JP
- Japan
- Prior art keywords
- layer
- rubbing
- light
- shielding layer
- display device
- 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
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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133512—Light shielding layers, e.g. black matrix
Landscapes
- Liquid Crystal (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は液晶表示装置に用いら
れる、カラー層と遮光層を備えた液晶表示装置用基板に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a substrate for a liquid crystal display device having a color layer and a light shielding layer, which is used for a liquid crystal display device.
【０００２】[0002]
【従来の技術】従来の液晶表示装置用基板に於いては、
遮光層とＲＧＢ画素等のカラー層パターンの重畳幅はブ
ラック線幅の１／４とし、遮光層開口部の中心とカラー
層パターンの中心が同一座標にあった。2. Description of the Related Art In a conventional substrate for a liquid crystal display device,
The overlap width of the light-shielding layer and the color layer pattern such as RGB pixels was 1/4 of the black line width, and the center of the light-shielding layer opening and the center of the color layer pattern were at the same coordinates.
【０００３】例えば、図５乃至図６で表示される液晶表
示装置用基板等がある。但し、図６では、基板１、透明
電極層４、ラビング層５を省略している。For example, there is a substrate for a liquid crystal display device shown in FIGS. However, in FIG. 6, the substrate 1, the transparent electrode layer 4, and the rubbing layer 5 are omitted.
【０００４】基板１の上にパターン状に遮光層２が設け
られ、その上にパターン状にカラー層３Ｒ，３Ｇ，３Ｂ
が設けられ、その更に上にラビング層４が表示部では一
様に設けられている。A light-shielding layer 2 is provided in a pattern on a substrate 1, and color layers 3R, 3G, 3B are
Is provided thereon, and the rubbing layer 4 is further provided uniformly on the display portion.
【０００５】ラビング層４の表面は、ａからｂに向かっ
てラビングされている。The surface of the rubbing layer 4 is rubbed from a to b.
【０００６】遮光層２とカラー層３Ｒ，３Ｇ，３Ｂの重
畳幅は、ラビング開始側と終了側で同じ遮光層２の幅の
１／４であった。The overlapping width of the light-shielding layer 2 and the color layers 3R, 3G, 3B was 1/4 of the same width of the light-shielding layer 2 on the rubbing start side and the rubbing start side.
【０００７】[0007]
【発明が解決しようとする課題】最近は遮光層幅の狭小
化にともない、遮光層とカラー層パターンの重畳幅も必
然的に狭くなり、カラー層パターンの端部での液晶分子
の配向の乱れ（リバースティルト）が遮光層開口部から
漏れて、表示ムラとなり、問題となっている。Recently, as the width of the light-shielding layer has been reduced, the overlap width of the light-shielding layer and the color layer pattern has necessarily been reduced, and the orientation of the liquid crystal molecules at the end of the color layer pattern has been disturbed. (Reverse tilt) leaks from the light-shielding layer opening, resulting in display unevenness, which is a problem.
【０００８】特にはカラー層パターンのエッジ形状が急
峻なほどリバースティルト現象は起こり易くなる。In particular, the steeper the edge shape of the color layer pattern, the more easily the reverse tilt phenomenon occurs.
【０００９】以上の問題点に鑑み、リバースティルトが
発生しても表示ムラのない液晶表示装置に用いる基板が
求められていた。In view of the above problems, there has been a demand for a substrate used for a liquid crystal display device that does not cause display unevenness even when reverse tilt occurs.
【００１０】[0010]
【課題を解決するための手段】遮光層開口部の中心座標
とカラーパターンの中心座標を故意にズラす。ズラす方
向としては、リバースティルト現象が起こり易い側のカ
ラー層パターンを、より遮光層との重畳幅を広く取る様
にする。The center coordinates of the light-shielding layer opening and the center coordinates of the color pattern are intentionally shifted. The direction of the shift is such that the color layer pattern on the side where the reverse tilt phenomenon is likely to occur has a wider overlapping width with the light shielding layer.
【００１１】リバースティルト現象の起こり易さはラビ
ング方向と関連性があり、ラビング終了方向に起こり易
いことが判っている。It has been found that the likelihood of occurrence of the reverse stilt phenomenon is related to the rubbing direction and tends to occur in the rubbing end direction.
【００１２】従って、ラビング終了方向に重畳幅を広く
形成すると、リバースティルトの影響が出なくなる。Therefore, if the overlap width is increased in the rubbing end direction, the influence of the reverse tilt is not exerted.
【００１３】なお、ラビング開始方向もパターンずれを
考慮すれば広い方が良いが、開口率を考慮すれば全体の
遮光層開口幅を狭く出来ない場合があり、ラビング開始
方向の重畳幅が狭まる。It is preferable that the rubbing start direction is wide in consideration of the pattern shift. However, in consideration of the aperture ratio, the entire light-shielding layer opening width may not be able to be narrowed, and the overlap width in the rubbing start direction is narrowed.
【００１４】この為、ラビング終了方向で５μｍ以上、
ラビング開始方向で２μｍ以上あれば品質上問題のない
液晶表示装置用電極板を得られる。For this reason, 5 μm or more in the rubbing end direction,
If the rubbing start direction is 2 μm or more, an electrode plate for a liquid crystal display device having no problem in quality can be obtained.
【００１５】また、液晶の駆動方式は、アクティブ駆動
方式ＸＹ駆動方式何れでも良く、従って透明電極層はＩ
ＴＯ等の低抵抗の材料であれば、全面とパターン何れで
も良い。また、上ＩＴＯ下ＩＴＯ何れでも良い。The liquid crystal may be driven by any of an active driving method and an XY driving method.
As long as the material has a low resistance such as TO, the whole surface and the pattern may be used. In addition, either upper ITO or lower ITO may be used.
【００１６】カラ−層は、液晶表示装置をカラ−化する
為に透過光を赤（Ｒ）緑（Ｇ）青（Ｂ）にする為のフイ
ルターである。The color layer is a filter for converting transmitted light into red (R) green (G) blue (B) in order to color the liquid crystal display device.
【００１７】遮光層は、表示装置のコントラストを上げ
る為にカラ−層の間に設けるものである。The light shielding layer is provided between the color layers to increase the contrast of the display device.
【００１８】透明電極層は、液晶を駆動する為に各画素
上に設けられた光透過性の導電層である。The transparent electrode layer is a light-transmitting conductive layer provided on each pixel for driving the liquid crystal.
【００１９】ラビング層は、液晶の配向方向を並べる為
に行うラビング処理を施すための層である。従って、表
面はラビング処理により平行に多数の微細な溝が設けら
れている。この場合のラビング処理方向は、画素配列に
対して斜めにするのが一般的であるが、画素配列方向と
同一もしくは垂直である場合でも同一の効果がえられ
る。The rubbing layer is a layer for performing a rubbing treatment for arranging the alignment directions of the liquid crystal. Therefore, the surface is provided with many fine grooves in parallel by rubbing. In this case, the rubbing direction is generally inclined with respect to the pixel array, but the same effect can be obtained even when the rubbing direction is the same as or perpendicular to the pixel array direction.
【００２０】以上の様な液晶表示装置用基板は、スペ−
サ−を周囲に設け、ラビング層と対向電極を備えた対向
基板とスペ−サ−ビ−ズを挟んで張り合わせ、その間隙
に液晶を封入し、両外面に偏向フイルムを張り合わせ、
実装部品を実装すれば液晶表示装置となる。各画素の駆
動は、対向した透明電極層間で掛ける電圧による電界の
制御によって行う。The substrate for a liquid crystal display device as described above is made of a space.
A surface is provided around the substrate, a rubbing layer and an opposing substrate having an opposing electrode are adhered to each other with a spacer therebetween, liquid crystal is sealed in the gap, and a deflection film is adhered to both outer surfaces.
A liquid crystal display device is obtained by mounting the mounted components. The driving of each pixel is performed by controlling an electric field by a voltage applied between the transparent electrode layers facing each other.
【００２１】[0021]
【作用】リバースティルトが発生しても、発生し易い部
分が遮光層に隠され、表示ムラのない極めて良質の表示
品位が得られるようになった。[Effects] Even when reverse tilt occurs, a portion which is likely to occur is hidden by the light-shielding layer, and an extremely high-quality display quality without display unevenness can be obtained.
【００２２】遮光層は、その部分にカラー層のあるなし
や、どちらが上になっているかに関わらず見られる場合
は視覚的に黒になるので、ラビング終了方向に重畳部を
形成すると、リバースティルトの影響が判らなくなる。The light-shielding layer becomes visually black when it is seen irrespective of the presence or absence of a color layer at that part or which side is up. Therefore, when the overlapping portion is formed in the rubbing end direction, the reverse tilt The effect of is unknown.
【００２３】[0023]
【実施例】以下、この発明を実施例に基づいて具体的に
説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below based on embodiments.
【００２４】＜実施例１＞ＯＡ機器等の場合、Ｘ方向に
ＲＧＢが配列され、Ｙ方向は同色配列となることが多
い。<First Embodiment> In the case of OA equipment and the like, RGB are often arranged in the X direction and the same color arrangement is often used in the Y direction.
【００２５】図１は、その様な本発明の一実施例の断面
図であり、図２は同平面図である。但し、図２では、基
板１、透明電極層４、ラビング層５を省略している。FIG. 1 is a sectional view of such an embodiment of the present invention, and FIG. 2 is a plan view of the same. However, in FIG. 2, the substrate 1, the transparent electrode layer 4, and the rubbing layer 5 are omitted.
【００２６】基板１の上にパターン状に遮光層２が設け
られ、その上にパターン状にカラー層３Ｒ，３Ｇ，３Ｂ
が設けられ、その更に上に透明電極層４とラビング層５
が表示部では一様に設けられている。A light-shielding layer 2 is provided on a substrate 1 in a pattern, and color layers 3R, 3G, 3B are formed on the light-shielding layer 2 in a pattern.
Is provided thereon, and the transparent electrode layer 4 and the rubbing layer 5 are further provided thereon.
Are provided uniformly on the display unit.
【００２７】ラビング層４の表面は、ａからｂに向かっ
てラビングされている。The surface of the rubbing layer 4 is rubbed from a to b.
【００２８】遮光層２とカラー層３Ｒ，３Ｇ，３Ｂの重
畳幅は、Ｘ方向のみカラー層３Ｒ，３Ｇ，３Ｂのラビン
グ開始側で５μｍ、終了側で１３μｍ取った。尚、遮光
層２の幅は全体で３６μｍで、遮光層２の開口幅は８４
μｍとした。The overlap width of the light shielding layer 2 and the color layers 3R, 3G, 3B was 5 μm on the rubbing start side and 13 μm on the end side of the color layers 3R, 3G, 3B only in the X direction. Note that the width of the light shielding layer 2 is 36 μm in total, and the opening width of the light shielding layer 2 is 84 μm.
μm.
【００２９】尚、本実施例の様にカラー層３Ｒ，３Ｇ，
３Ｂをストライプ状にすることで、Ｙ方向であるゲート
ライン部となる遮光層２付近でのリバースティルトは抑
えられる。Incidentally, the color layers 3R, 3G,
By forming the stripes 3B, the reverse tilt in the vicinity of the light-shielding layer 2 which is a gate line portion in the Y direction can be suppressed.
【００３０】＜実施例２＞ＴＶの場合、ＲＧＢの配列は
トライアングル配列になることが多い。<Embodiment 2> In the case of a TV, the RGB arrangement is often a triangle arrangement.
【００３１】図３は、その様な本発明の一実施例の平面
図である。但し、基板と透明電極層とラビング層を省略
している。FIG. 3 is a plan view of such an embodiment of the present invention. However, the substrate, the transparent electrode layer, and the rubbing layer are omitted.
【００３２】遮光層２とカラー層３Ｒ，３Ｇ，３Ｂの重
畳幅は、Ｘ方向、Ｙ方向ともカラー層３Ｒ，３Ｇ，３Ｂ
のラビング開始側で５μｍ、終了側で１３μｍ取った。
尚、遮光層２の幅は全体で３６μｍで、遮光層２の開口
幅は１１４μｍとした。The overlapping width of the light-shielding layer 2 and the color layers 3R, 3G, 3B is such that the color layers 3R, 3G, 3B in both the X and Y directions.
5 μm on the rubbing start side and 13 μm on the end side.
The width of the light-shielding layer 2 was 36 μm in total, and the opening width of the light-shielding layer 2 was 114 μm.
【００３３】本設計にて製造した液晶表示装置用基板を
用いて液晶パネル化し、モジュール点灯させ液晶表示装
置を得たが、表示ムラのない良好な表示品位が得られ
た。A liquid crystal panel was formed using the substrate for a liquid crystal display device manufactured by this design, and a module was turned on to obtain a liquid crystal display device. Good display quality without display unevenness was obtained.
【００３４】＜実施例３＞図４は、別な本発明の一実施
例の平面図である。但し、基板と透明電極層とラビング
層を省略している。<Embodiment 3> FIG. 4 is a plan view of another embodiment of the present invention. However, the substrate, the transparent electrode layer, and the rubbing layer are omitted.
【００３５】遮光層２とカラー層３Ｒ，３Ｇ，３Ｂの重
畳幅は、Ｘ方向、Ｙ方向ともカラー層３Ｒ，３Ｇ，３Ｂ
のラビング開始側で５μｍ、終了側で１３μｍ取った。
尚、遮光層２の幅は全体で３６μｍで、遮光層２の開口
幅は８４μｍとした。The overlapping width of the light shielding layer 2 and the color layers 3R, 3G, 3B is such that the color layers 3R, 3G, 3B
5 μm on the rubbing start side and 13 μm on the end side.
The width of the light-shielding layer 2 was 36 μm as a whole, and the opening width of the light-shielding layer 2 was 84 μm.
【００３６】本設計にて製造した液晶表示装置用基板を
用いて液晶パネル化し、モジュール点灯させ液晶表示装
置を得たが、表示ムラのない良好な表示品位が得られ
た。A liquid crystal panel was formed using the substrate for a liquid crystal display device manufactured by this design, and a module was turned on to obtain a liquid crystal display device. Good display quality without display unevenness was obtained.
【００３７】[0037]
【発明の効果】この発明によれば、リーバースティルト
による画質の低下を抑える事ができる表示装置用電極板
を得る。According to the present invention, there is provided an electrode plate for a display device capable of suppressing a decrease in image quality due to a reverse stilt.
【図１】 本発明の一実施例の表示装置用電極板の平面
図である。FIG. 1 is a plan view of an electrode plate for a display device according to an embodiment of the present invention.
【図２】 本発明の一実施例の表示装置用電極板の断面
図である。FIG. 2 is a sectional view of an electrode plate for a display device according to an embodiment of the present invention.
【図３】 本発明の別な一実施例の表示装置用電極板の
平面図である。FIG. 3 is a plan view of an electrode plate for a display device according to another embodiment of the present invention.
【図４】 本発明の別な一実施例の表示装置用電極板の
平面図である。FIG. 4 is a plan view of an electrode plate for a display device according to another embodiment of the present invention.
【図５】 従来の表示装置用電極板の断面図である。FIG. 5 is a sectional view of a conventional electrode plate for a display device.
【図６】 従来の表示装置用電極板の平面図である。FIG. 6 is a plan view of a conventional display device electrode plate.
１ 基板 ２ 遮光層 ３Ｒ、３Ｇ、３Ｂ カラー層 ４ 透明電極層 ５ ラビング層 Reference Signs List 1 substrate 2 light shielding layer 3R, 3G, 3B color layer 4 transparent electrode layer 5 rubbing layer
Claims (1)
形成され、さらに透明電極層とラビング層が設けられて
いる液晶表示装置用基板において、遮光層とカラー層の
重畳幅がカラー層のラビング開始方向よりラビング進行
方向の方が広い事を特徴とする液晶表示装置用基板。In a liquid crystal display device having a light-shielding layer and a color layer formed in a pattern on a substrate and further including a transparent electrode layer and a rubbing layer, the overlapping width of the light-shielding layer and the color layer is limited to the color layer. A substrate for a liquid crystal display device, characterized in that the rubbing direction is wider than the rubbing start direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3247521A JP2636592B2 (en) | 1991-09-26 | 1991-09-26 | LCD substrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3247521A JP2636592B2 (en) | 1991-09-26 | 1991-09-26 | LCD substrate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0588178A JPH0588178A (en) | 1993-04-09 |
| JP2636592B2 true JP2636592B2 (en) | 1997-07-30 |
Family
ID=17164731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3247521A Expired - Lifetime JP2636592B2 (en) | 1991-09-26 | 1991-09-26 | LCD substrate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2636592B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003066433A (en) * | 2001-08-28 | 2003-03-05 | Hitachi Ltd | Liquid crystal display |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2534055Y2 (en) * | 1990-11-27 | 1997-04-30 | カシオ計算機株式会社 | Liquid crystal display device |
-
1991
- 1991-09-26 JP JP3247521A patent/JP2636592B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0588178A (en) | 1993-04-09 |
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