JPH0493924A - Liquid crystal display device - Google Patents
Liquid crystal display deviceInfo
- Publication number
- JPH0493924A JPH0493924A JP20892990A JP20892990A JPH0493924A JP H0493924 A JPH0493924 A JP H0493924A JP 20892990 A JP20892990 A JP 20892990A JP 20892990 A JP20892990 A JP 20892990A JP H0493924 A JPH0493924 A JP H0493924A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- display device
- crystal display
- spacer
- picture element
- 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
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims description 51
- 239000000758 substrate Substances 0.000 claims abstract description 50
- 125000006850 spacer group Chemical group 0.000 claims abstract description 47
- 238000000926 separation method Methods 0.000 claims abstract description 31
- 230000006866 deterioration Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 7
- 239000003795 chemical substances by application Substances 0.000 abstract description 3
- 238000001312 dry etching Methods 0.000 abstract description 3
- 229920002120 photoresistant polymer Polymers 0.000 abstract description 3
- 239000003086 colorant Substances 0.000 abstract description 2
- 239000010408 film Substances 0.000 description 29
- 238000010586 diagram Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000011159 matrix material Substances 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 239000004988 Nematic liquid crystal Substances 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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
- G02F1/13394—Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars
-
- 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
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は色フィルタを有するカラー表示方式の光透過型
液晶表示装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a color display type light transmission type liquid crystal display device having a color filter.
本発明は、液晶層を挟んで一方の基板内面に第１の電極
が形成され、他方の基板内面に第２の電極が形成されて
上記電極により絵素パターンが形成され、上記絵素パタ
ーンを互いに分離する絵素分離パターンを有してなる液
晶表示装置において、上記絵素分離パターン上にスペー
サを配して構成することにより、スペーサによるコント
ラストの劣化を防止できるようにすると共に、基板間の
間隔に関する精度の向上を図れるようにしたものである
。In the present invention, a first electrode is formed on the inner surface of one substrate with a liquid crystal layer in between, and a second electrode is formed on the inner surface of the other substrate, and a pixel pattern is formed by the electrodes. In a liquid crystal display device having pixel separation patterns that are separated from each other, by arranging spacers on the pixel separation patterns, it is possible to prevent deterioration of contrast due to the spacers, and also to prevent the deterioration of contrast between the substrates. This makes it possible to improve the accuracy regarding spacing.
また、本発明は、上記液晶表示装置において、上記絵素
分離パターン上に色フィルタを重ね合せてスペーサを形
成して構成することにより、絵素分離パターン上へのス
ペーサの形成を容易に実現させて、スペーサによるコン
トラストの劣化の防止並びに基板間の間隔に関する精度
の向上を容易に実現できるようにすると共に、液晶表示
装置自体の歩留りの向上並びに製造コストの低廉化を図
れるようにしだもである。Further, in the liquid crystal display device of the present invention, a color filter is superimposed on the pixel separation pattern to form a spacer, thereby easily realizing the formation of the spacer on the pixel separation pattern. In this way, it is possible to easily prevent deterioration of contrast due to spacers and improve accuracy regarding the spacing between substrates, and also to improve the yield of the liquid crystal display device itself and reduce manufacturing costs. .
従来の色フィルタを有する例えばアクティブ・マ） Ｉ
Ｊクス方式の光透過型液晶表示装置は、第４図に示すよ
うに、一方の透明基板（２１）の内面に、ＴＰＴ （薄
膜トランジスタ）等からなる液晶駆動素子と配線層を含
む液晶駆動回路形成領域（２２）と、絶縁膜（２３）と
、絵素パターンに従ってバターニングされた透明導電膜
（絵素電極） （２４）と、ラビング法による配向膜（
２５）が順次積層され、他方の透明基板（２６）の内面
に、上記絵素電極（２４）に対応して形成される色フィ
ルタ（２７）と、色フイルタ保護膜（２８）と、対向電
極となる透明導電膜（２９）と、ラビング法による配向
膜（３０）が順次積層され、上記透明基板（２１）及び
（２６）を夫々配向膜（２５）及び（３０）を対向させ
、更に液晶層（３１）を挾むようにして貼合せて構成さ
れている。また、透明基板（２６）の内面には、対向す
る透明基板（２１）において絵素電極（２４）が形成さ
れていない部分に対応して絵素分離パターン（３２）が
形成される。e.g. active matrix with conventional color filters) I
As shown in FIG. 4, the JX type light transmission type liquid crystal display device has a liquid crystal drive circuit formed on the inner surface of one transparent substrate (21), including a liquid crystal drive element made of TPT (thin film transistor), etc., and a wiring layer. A region (22), an insulating film (23), a transparent conductive film (pixel electrode) patterned according to the pixel pattern (24), and an alignment film (
25) are sequentially laminated, and on the inner surface of the other transparent substrate (26), a color filter (27) formed corresponding to the picture element electrode (24), a color filter protective film (28), and a counter electrode. A transparent conductive film (29) and an alignment film (30) formed by a rubbing method are sequentially laminated, and the transparent substrates (21) and (26) are faced with the alignment films (25) and (30), respectively. It is constructed by laminating layers (31) in between. Further, on the inner surface of the transparent substrate (26), a picture element separation pattern (32) is formed corresponding to a portion of the opposing transparent substrate (21) where the picture element electrode (24) is not formed.
また、各透明基板（２１）及び（２６）間には、液晶層
（３１）が介在することから、全面にわたって一様の間
隔となるように、基板（２１）及び（２６）間に例えば
球形で透明状のスペーサ（３３）がランダムに配され、
各透明基板（２１）及び（２６）同士が高精度に貼り合
わされるようになされている。In addition, since the liquid crystal layer (31) is interposed between each transparent substrate (21) and (26), a spherical shape, for example, is formed between the substrates (21) and (26) so that the spacing is uniform over the entire surface. Transparent spacers (33) are randomly arranged,
The transparent substrates (21) and (26) are bonded together with high precision.
〔発明が解決しようとする課題］
しかしながら、従来の液晶表示装置においては、スペー
サ（３３）がランダムに液晶層（３１）内に混入した構
成となっているため、このスペーサ（３３）が存在する
絵素（絵素電極（２４））では、該絵素の動作時の光の
量とオフ時の光の量との差がはっきりしなくなり、全体
的にみてコントラストが劣化するという不都合が生じる
。[Problem to be Solved by the Invention] However, in the conventional liquid crystal display device, the spacers (33) are randomly mixed into the liquid crystal layer (31), so the spacers (33) exist. In the picture element (picture element electrode (24)), the difference between the amount of light when the picture element is in operation and the amount of light when it is off becomes unclear, resulting in a disadvantage that overall contrast deteriorates.
また、透明基板（２１）及び（２６）間の間隔は、スペ
ーサ（３３）の配置密度を増すほどその精度が良好とな
るわけだが、上記の如く、スペーサ（３３）の配置密度
が高くなると、コントラストの劣化がより進むため、実
用上、上記スペーサ（３３）の配置密度には限界があり
、透明基板（２１）及び（２６）間の間隔に関する精度
出しにも限界が生じるという欠点がある。Furthermore, the accuracy of the interval between the transparent substrates (21) and (26) becomes better as the arrangement density of the spacers (33) increases, but as mentioned above, as the arrangement density of the spacers (33) increases, Since the contrast deteriorates further, there is a practical limit to the arrangement density of the spacers (33), and there is also a limit to the accuracy of the spacing between the transparent substrates (21) and (26).
本発明は、このような点に鑑み成されたもので、その目
的とするところは、スペーサによるコントラストの劣化
を防止できると共に、基板間の間隔に関する精度の向上
を図ることができる液晶表示装置を提供することにある
。The present invention has been made in view of the above, and an object of the present invention is to provide a liquid crystal display device that can prevent deterioration of contrast due to spacers and improve accuracy regarding the spacing between substrates. It is about providing.
また、本発明は、絵素分離パターン上へのスペーサの形
成が容易に実現でき、スペーサによるコントラストの劣
化の防止並びに基板間の間隔に関する精度の向上を容易
に図れると共に、液晶表示装置自体の歩留りの向上並び
に製造コストの低廉化を図ることができる液晶表示装置
を提供することにある。In addition, the present invention makes it possible to easily form spacers on pixel separation patterns, prevent deterioration of contrast due to the spacers, easily improve accuracy regarding the spacing between substrates, and improve the yield of the liquid crystal display device itself. An object of the present invention is to provide a liquid crystal display device that can improve the performance and reduce the manufacturing cost.
本発明は、液晶層（１１）を挟んで一方の基板（５）内
面に第１の電極〔絵素電極（３）あるいは対向電極（８
）〕が形成され、他方の基板（１０）内面に第２の電極
〔対向電極（８）あるいは絵素電極（３）〕が形成され
て、上記絵素電極（３）単体あるいは絵素電極（３）及
び対向電極（８）により絵素パターンが形成され、更に
上記絵素パターンを互いに分離する絵素分離パターン（
１２）を有してなる液晶表示装置（Ａ）において、上記
絵素分離パターン（１２）上にスペーサ（１３）を配し
て構成する。The present invention provides a first electrode [pixel electrode (3) or counter electrode (8) on the inner surface of one substrate (5) with a liquid crystal layer (11) in between.
)] is formed on the inner surface of the other substrate (10), and a second electrode [counter electrode (8) or picture element electrode (3)] is formed on the inner surface of the other substrate (10). 3) and the counter electrode (8) form a picture element pattern, and furthermore, a picture element separation pattern (
12), the liquid crystal display device (A) is constructed by disposing a spacer (13) on the picture element separation pattern (12).
また、本発明は、上記液晶表示装置（Ａ）において、上
記絵素分離パターン（１２）上に色フィルタ（６）を重
ね合せてスペーサ（１３）を形成して構成する。Further, in the liquid crystal display device (A) of the present invention, a color filter (6) is superimposed on the picture element separation pattern (12) to form a spacer (13).
上述の本発明の構成によれば、光が透過しない絵素分離
パターン（１２）上にスペーサ（１３）を配するように
したので、絵素パターン上にスペーサ（１３）が配され
るということがなくなり、全体的にコントラストが向上
する。しかも、基板（５）及び（１０）間の間隔に関す
る精度を向上させる目的でスペーサ（１３）の配置密度
を上げても、コントラストへの悪影響は皆無となる。According to the configuration of the present invention described above, the spacer (13) is arranged on the pixel separation pattern (12) through which light does not pass, so that the spacer (13) is arranged on the pixel pattern. , and overall contrast is improved. Furthermore, even if the arrangement density of the spacers (13) is increased for the purpose of improving the accuracy regarding the spacing between the substrates (5) and (10), there is no adverse effect on the contrast.
また、上述の本発明の構成によれば、絵素分離パターン
（１２）上に色フィルタ（６）を重ね合せてスペーサ（
１３）を形成するようにしたので、絵素分離パターン（
１２）上へのスペーサ（１３）の形成を容易に実現させ
ることができ、コントラストの向上並びに基板（５）及
び（１０）間の間隔に関する精度の向上を容易に実現さ
せることができる。しかも、スペーサ散布等の発塵を伴
なう工程が不要となるため、液晶表示装置（Ａ）自体の
歩留りが向上すると共に、製造コストの低廉化を図るこ
とができる。Further, according to the configuration of the present invention described above, the color filter (6) is superimposed on the pixel separation pattern (12), and the spacer (
13), the picture element separation pattern (
12) Formation of spacers (13) on top can be easily realized, and improvement of contrast and accuracy regarding the spacing between substrates (5) and (10) can be easily realized. Furthermore, since steps such as spacer dispersion that generate dust are not required, the yield of the liquid crystal display device (A) itself can be improved and manufacturing costs can be reduced.
［実施例〕
以下、第１図〜第３図を参照しながら本発明の詳細な説
明する。[Example] Hereinafter, the present invention will be described in detail with reference to FIGS. 1 to 3.
第１図は、本実施例に係る液晶表示装置、例えばアクテ
ィブ・マトリクス方式の光透過型液晶表示装置（Ａ）の
原理を示す構成図である。FIG. 1 is a configuration diagram showing the principle of a liquid crystal display device according to this embodiment, for example, an active matrix type light transmission type liquid crystal display device (A).
この液晶表示装置（Ａ）は、内面に、ＴＰＴ（薄膜トラ
ンジスタ）等からなる液晶駆動素子と配線層を含む液晶
駆動回路形成領域（１）と、絶縁膜（２）と、絵素パタ
ーンに従ってパターニングされた透明導電膜即ち絵素電
極（３）と、配向膜（４）とを順次積層してなる透明基
板（５）と、内面に、絵素電極（３）に対応して形成さ
れる染色による色フィルタ又は顔料系の色フィルタ（以
下、単に色フィルタと記す）（６）と、該色フィルタ（
６）の表面を保護する色フイルタ保護膜（７）と、対向
電極となる透明導電膜（８）と、配向膜（９）とを順次
積層してなる透明基板（１０）を夫々配向膜（４）及び
（９）を対向させ、更に例えばツイストネマティック型
の液晶層（１１）を挟むようにして貼り合せてなる。ま
た、透明基板（ｌＯ）の内面には、対向する透明基板（
５）において絵素電極（３）が形成されていない部分に
対応して光遮蔽層からなる絵素分離パターン（１２）が
形成される。This liquid crystal display device (A) has a liquid crystal drive circuit forming area (1) including a liquid crystal drive element made of TPT (thin film transistor) etc. and a wiring layer, an insulating film (2), and is patterned according to a pixel pattern on the inner surface. A transparent substrate (5) formed by successively laminating a transparent conductive film, that is, a picture element electrode (3), and an alignment film (4), and a dyeing layer formed on the inner surface corresponding to the picture element electrode (3). A color filter or a pigment-based color filter (hereinafter simply referred to as a color filter) (6);
A transparent substrate (10) formed by sequentially laminating a color filter protective film (7) that protects the surface of a color filter (7), a transparent conductive film (8) serving as a counter electrode, and an alignment film (9) is coated with an alignment film (6), respectively. 4) and (9) are made to face each other, and further bonded with, for example, a twisted nematic liquid crystal layer (11) sandwiched therebetween. In addition, on the inner surface of the transparent substrate (lO), an opposing transparent substrate (
In step 5), a picture element separation pattern (12) made of a light shielding layer is formed corresponding to the portion where the picture element electrode (3) is not formed.
しかして、本例では、上記絵素分離パターン（１２）上
にスペーサ（二点鎖線で示す） （１３）を配して構成
される。Therefore, in this example, a spacer (indicated by a two-dot chain line) (13) is arranged on the picture element separation pattern (12).
この構成によれば、絵素パターン、即ち絵素電極（３）
上にスペーサ（１３）が配されるということがなくなり
、スペーサ（１３）によるコントラストの劣化が防止さ
れ、全体的にコントラストが向上する。According to this configuration, the picture element pattern, that is, the picture element electrode (3)
Since the spacer (13) is no longer placed on top, deterioration of contrast due to the spacer (13) is prevented, and the overall contrast is improved.
しかも、スペーサ（１３）の配置密度を上げても、コン
トラストへの悪影響は皆無であるため、透明基板（５）
及び（１０）間の間隔に関する精度を向上させることが
できる。Moreover, even if the arrangement density of the spacers (13) is increased, there is no negative effect on the contrast, so the transparent substrate (5)
The accuracy regarding the interval between and (10) can be improved.
ところが、通常用いられているスペーサを第１図に示す
ように、絵素分離パターン（１２）上に配することは、
実際上困難である。However, placing a commonly used spacer on the picture element separation pattern (12) as shown in FIG.
This is difficult in practice.
そこで、以下、絵素分離パターン（１２）上へのスペー
サ（１３）の形成を容易に実現させることができる２つ
の実施例について第２図及び第３図を参照しながら説明
する。尚、第１図と対応するものについては同符号を記
す。Hereinafter, two embodiments that can easily realize the formation of the spacer (13) on the picture element separation pattern (12) will be described with reference to FIGS. 2 and 3. Components corresponding to those in FIG. 1 are designated by the same reference numerals.
第２図は、第１実施例に係る液晶表示装置（八１）を示
す構成図である。FIG. 2 is a configuration diagram showing a liquid crystal display device (81) according to the first embodiment.
この液晶表示装置（Ａ１）は、上記第１図で示す液晶表
示装置（Ａ）とほぼ同様の構成を有するが、スペーサ（
１３）として、色フィルタ（６）を重ね合せたものを使
用していることで異なる。This liquid crystal display device (A1) has almost the same configuration as the liquid crystal display device (A) shown in FIG.
The difference is that a superimposed color filter (6) is used as 13).
即ち、この第１実施例では、スペーサ（１３）として、
絵素分離パターン（１２）上にアライメントして形成さ
れる色フィルタ（６）を利用し、絵素分離パターン（１
２）上で３色の色フィルタ（６ａ） 、 （６ｂ）及び
（６ｃ）を重ね合せることにより、スペーサ（１３）の
代用となる高さを設けるようにしている。このとき、色
フィルタ（６）は、１色当たり１〜３μｍの厚みを有す
るため、上記の如く、３色の色フィルタ（６ａ）。That is, in this first embodiment, as the spacer (13),
The picture element separation pattern (12) is formed by aligning the color filter (6) on the picture element separation pattern (12).
2) By overlapping three color filters (6a), (6b) and (6c) on top, a height that can be used as a substitute for the spacer (13) is provided. At this time, since the color filter (6) has a thickness of 1 to 3 μm per color, the color filter (6a) has three colors as described above.
（６ｂ）及び（６ｃ）を重ね合せることにより、スペー
サ（１３）として必要な２〜６μｍの高さを得ることが
可能となる。By overlapping (6b) and (6c), it becomes possible to obtain the height of 2 to 6 μm required for the spacer (13).
ところで、上記のように形成した色フィルタ（６）上に
配向膜（９）を形成する際、通常のラビング法では不可
能である。そこで本例では、色フィルタ（６）上にコー
ティングされた配向剤をフォトレジストを使用してパタ
ーニングし、ドライエツチング法にて配向処理して色フ
ィルタ（６）上に配向膜（９）を形成する。By the way, when forming the alignment film (9) on the color filter (6) formed as described above, it is impossible to use a normal rubbing method. Therefore, in this example, the alignment agent coated on the color filter (6) is patterned using a photoresist, and then subjected to alignment treatment using a dry etching method to form an alignment film (9) on the color filter (6). do.
この第１実施例によれば、絵素分離パターン（１２）上
へのスペーサ（１３）の形成を容易に実現させることが
でき、コントラストの向上並びに透明基板（５）及び（
１０）間の間隔に関する精度の向上を容易に実現させる
ことができる。しかも、色フィルタ（６）自体をスペー
サ（工３）として利用するため、通常行なわれているス
ペーサ散布や配向膜（９）に対するラビング処理等の発
塵を伴なう工程が不要となるため、液晶表示装置（Ａ１
）自体の歩留りが向上すると共に、製造コストの低廉化
をも図ることができる。According to the first embodiment, the spacer (13) can be easily formed on the pixel separation pattern (12), and the contrast can be improved and the transparent substrate (5) and (
10) It is possible to easily improve the accuracy regarding the interval between the two. Moreover, since the color filter (6) itself is used as a spacer (step 3), the normally performed processes that generate dust, such as spacer dispersion and rubbing treatment for the alignment film (9), are not required. Liquid crystal display device (A1
) itself can be improved in yield, and manufacturing costs can also be reduced.
次に、上記第１実施例よりも透明基板（５）及び（１０
）間の間隔に関する精度が良好な第２実施例に係る液晶
表示装置ｒ（１ｇ）を第３図に基いて説明する。Next, the transparent substrates (5) and (10) are more transparent than the first embodiment.
A liquid crystal display device r (1g) according to a second embodiment, which has good accuracy regarding the spacing between (), will be described with reference to FIG.
この液晶表示装置（Ａ２）は、上記第１実施例の場合と
異なって、絵素電極（３）のある透明基板（５）の内面
に、上記第１実施例と同様な色フィルタ（６）によるス
ペーサ（１３）を形成する。This liquid crystal display device (A2) differs from the first embodiment in that a color filter (6) similar to that in the first embodiment is provided on the inner surface of a transparent substrate (5) on which picture element electrodes (3) are provided. A spacer (13) is formed.
即ち、一方の透明基板（５）内面に、液晶駆動回路形成
領域（］）と、絶縁膜（２）を形成し、更に該絶縁膜（
２）上に絵素を互いに分離する絵素分離パターン（１２
）を設け、この絵素分離パターン（１２）を含む全面に
色フィルタ（６）を形成する。このとき、絵素分離パタ
ーン（１２）上において、３色の色フィルタ（６ａ）
、 （６ｂ）及び（６Ｃ）が重ね合さるように形成して
、これをスペーサ（１３）となす。その後、色フィルタ
（６）上に色フイルタ保護膜（７）を形成すると共に、
透明導電膜を選択的に形成して絵素電極（３）を形成す
る。この絵素電極（３）で絵素パターンが形成される。That is, a liquid crystal drive circuit forming area (]) and an insulating film (2) are formed on the inner surface of one transparent substrate (5), and the insulating film (2) is formed on the inner surface of one transparent substrate (5).
2) A picture element separation pattern (12
), and a color filter (6) is formed on the entire surface including this picture element separation pattern (12). At this time, on the pixel separation pattern (12), the three color filters (6a)
, (6b) and (6C) are formed so as to be overlapped to form a spacer (13). After that, a color filter protective film (7) is formed on the color filter (6), and
A transparent conductive film is selectively formed to form a picture element electrode (3). A picture element pattern is formed by this picture element electrode (3).
その後、全面に配向剤をコーティングしたのち、フォト
レジストを用いてバターニングし、次いでドライエツチ
ング法により配向処理して配向膜（４）となす。Thereafter, the entire surface is coated with an alignment agent, patterned using a photoresist, and then subjected to an alignment treatment using a dry etching method to form an alignment film (4).
また、他方の透明基板（１０）の内面には、対向電極と
なる透明導電膜（８）と配向膜（９）が順次積層され、
そして、上記透明基板（５）とこの透明基板（１０）と
を夫々配向膜（４）及び（９）を対向させ、更に液晶層
（１１）を挾むように貼り合せることによって、第２実
施例に係る液晶表示装置（Ａ２）が構成される。Further, on the inner surface of the other transparent substrate (10), a transparent conductive film (8) serving as a counter electrode and an alignment film (9) are sequentially laminated.
Then, the above-mentioned transparent substrate (5) and this transparent substrate (10) are bonded to each other so that the alignment films (4) and (9) are opposed to each other, and the liquid crystal layer (11) is sandwiched therebetween. Such a liquid crystal display device (A2) is constructed.
この第２実施例によれば、上記第１実施例と同様に、絵
素分離パターン（１２）上へのスペーサ（１３）の形成
が容易に実現でき、コントラストの向上並びに透明基板
（５）及び（１０）間の間隔に関する精度の向上を容易
に図れると共に、液晶表示装置（Ａ２）自体の歩留りの
向上並びに製造コストの低廉化を図ることができる。According to the second embodiment, similarly to the first embodiment, the spacer (13) can be easily formed on the pixel separation pattern (12), and the contrast can be improved and the transparent substrate (5) and (10) It is possible to easily improve the accuracy with respect to the interval, and also to improve the yield of the liquid crystal display device (A2) itself and to reduce the manufacturing cost.
また、内面に色フィルタ（６）を形成した透明基板（５
）と対向する透明基板（１０）の内面には、ベタ塗りの
対向電極（８）と配向膜（９）が形成されるのみである
ため、該透明基板（１０）の内面は、第１実施例の透明
基板（５）内面と比べ、よりフラットになり、透明基板
（５）及び（１０）間の間隔に関する精度がより向上す
る。In addition, a transparent substrate (5) with a color filter (6) formed on the inner surface.
), only the solid-coated counter electrode (8) and alignment film (9) are formed on the inner surface of the transparent substrate (10), which faces the transparent substrate (10). Compared to the inner surface of the transparent substrate (5) in the example, the inner surface of the transparent substrate (5) is more flat, and the accuracy regarding the distance between the transparent substrates (5) and (10) is further improved.
尚、上記実施例では、アクティブ・マトリクス方式の液
晶表示装置に適用した例を示したが、その他、対向する
透明導電膜（電極）（３）及び（８）で絵素パターンが
構成される所謂単純マトリクス方式の液晶表示装置にも
適用させることができる。In the above embodiment, an example is shown in which the liquid crystal display device is applied to an active matrix type liquid crystal display device. It can also be applied to a simple matrix type liquid crystal display device.
また、上記実施例において、色フィルタ（６）として顔
料系の色フィルタを用いれば、その表面性の良好さから
透明基板（５）及び（１０）間の間隔のコントロールが
容易になり、上記実施例の構成とも相伴って上記間隔に
関する精度を効率良く高めることが可能になる。Furthermore, in the above embodiment, if a pigment-based color filter is used as the color filter (6), the interval between the transparent substrates (5) and (10) can be easily controlled due to its good surface properties, and the above embodiment Together with the configuration of the example, it becomes possible to efficiently improve the accuracy regarding the above-mentioned spacing.
本発明に係る液晶表示装置によれば、スペーサによるコ
ントラストの劣化を防止できると共に、基板間の間隔に
関する精度の向上を図ることができる。According to the liquid crystal display device according to the present invention, it is possible to prevent deterioration of contrast due to spacers, and it is also possible to improve accuracy regarding the spacing between substrates.
また、本発明に係る液晶表示装置によれば、絵素分離パ
ターン上へのスペーサの形成が容易に実現でき、スペー
サによるコントラストの劣化の防止並びに基板間の間隔
に関する精度の向上を容易に図れると共に、液晶表示装
置自体の歩留りの向上並びに製造コストの低廉化を図る
ことができる。Further, according to the liquid crystal display device of the present invention, it is possible to easily form spacers on the pixel separation pattern, and it is possible to easily prevent deterioration of contrast caused by the spacers and improve accuracy regarding the spacing between substrates. , it is possible to improve the yield of the liquid crystal display device itself and to reduce the manufacturing cost.
第１図は本実施例に係る液晶表示装置の原理を示す構成
図、第２図は第１実施例に係る液晶表示装置を示す構成
図、第３図は第２実施例に係る液晶表示装置を示す構成
図、第４図は従来例に係る液晶表示装置を示す構成図で
ある。
（Ａ） 、 （Ａ、）及び（Ａ２）は液晶表示装置、（
１）は液晶駆動回路形成領域、（２）は絶縁膜、（３）
は絵素電極、（４）及び（９）は配向膜、（５）及び（
１０）は透明基板、（６）は色フィルタ、（７）は色フ
イルタ保護膜、（８）は対向電極、（１１）は液晶層、
（１２）は絵素分離パターン、（１３）はスペーサであ
る。
代
理
人
松
隈
秀
盛FIG. 1 is a block diagram showing the principle of the liquid crystal display device according to the present embodiment, FIG. 2 is a block diagram showing the liquid crystal display device according to the first embodiment, and FIG. 3 is a block diagram showing the liquid crystal display device according to the second embodiment. FIG. 4 is a block diagram showing a conventional liquid crystal display device. (A), (A,) and (A2) are liquid crystal display devices, (
1) is the liquid crystal drive circuit forming area, (2) is the insulating film, (3)
are picture element electrodes, (4) and (9) are alignment films, (5) and (
10) is a transparent substrate, (6) is a color filter, (7) is a color filter protective film, (8) is a counter electrode, (11) is a liquid crystal layer,
(12) is a picture element separation pattern, and (13) is a spacer. Agent Hidemori Matsukuma
Claims (1)
され、他方の基板内面に第２の電極が形成されて上記電
極により絵素パターンが形成され、上記絵素パターンを
互いに分離する絵素分離パターンを有してなる液晶表示
装置において、 上記絵素分離パターン上にスペーサを配してなる液晶表
示装置。 ２、液晶層を挟んで一方の基板内面に第１の電極が形成
され、他方の基板内面に第２の電極が形成されて上記電
極により絵素パターンが形成され、上記絵素パターンを
互いに分離する絵素分離パターンを有してなる液晶表示
装置において、 上記絵素分離パターン上に色フィルタを重ね合わせてス
ペーサを形成してなる液晶表示装置。[Claims] 1. A first electrode is formed on the inner surface of one substrate with a liquid crystal layer in between, and a second electrode is formed on the inner surface of the other substrate, and a pixel pattern is formed by the electrodes, A liquid crystal display device comprising a pixel separation pattern that separates pixel patterns from each other, comprising: a spacer disposed on the pixel separation pattern. 2. A first electrode is formed on the inner surface of one substrate with the liquid crystal layer in between, and a second electrode is formed on the inner surface of the other substrate, a pixel pattern is formed by the electrodes, and the pixel patterns are separated from each other. A liquid crystal display device comprising a picture element separation pattern, wherein a color filter is superimposed on the picture element separation pattern to form a spacer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20892990A JPH0493924A (en) | 1990-08-07 | 1990-08-07 | Liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20892990A JPH0493924A (en) | 1990-08-07 | 1990-08-07 | Liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0493924A true JPH0493924A (en) | 1992-03-26 |
Family
ID=16564467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20892990A Pending JPH0493924A (en) | 1990-08-07 | 1990-08-07 | Liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0493924A (en) |
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| JPH0980447A (en) * | 1995-09-08 | 1997-03-28 | Toshiba Electron Eng Corp | Liquid crystal display element |
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-
1990
- 1990-08-07 JP JP20892990A patent/JPH0493924A/en active Pending
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| US5815232A (en) * | 1995-08-18 | 1998-09-29 | Kabushiki Kaisha Toshiba | Color liquid crystal display apparatus |
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| CN100403136C (en) * | 2004-07-21 | 2008-07-16 | 夏普株式会社 | Color filter substrate and liquid crystal display device |
| JP2005055923A (en) * | 2004-11-05 | 2005-03-03 | Toshiba Electronic Engineering Corp | Liquid crystal display device |
| JP2005326887A (en) * | 2005-08-05 | 2005-11-24 | Toshiba Corp | Liquid crystal display element |
| JP2009192795A (en) * | 2008-02-14 | 2009-08-27 | Seiko Instruments Inc | Liquid crystal display |
| JP2011209618A (en) * | 2010-03-30 | 2011-10-20 | Dainippon Printing Co Ltd | Color filter for transmissive liquid crystal display device |
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