JP2751392B2 - Liquid crystal display - Google Patents
Liquid crystal displayInfo
- Publication number
- JP2751392B2 JP2751392B2 JP1119705A JP11970589A JP2751392B2 JP 2751392 B2 JP2751392 B2 JP 2751392B2 JP 1119705 A JP1119705 A JP 1119705A JP 11970589 A JP11970589 A JP 11970589A JP 2751392 B2 JP2751392 B2 JP 2751392B2
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- color filter
- crystal display
- color
- substrates
- 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)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明はパーソナルコンピュータの端末ディスプレイ
等に用いられるカラー液晶表示素子に関する。Description: TECHNICAL FIELD The present invention relates to a color liquid crystal display device used for a terminal display of a personal computer and the like.
〔従来の技術〕 液晶表示装置の表示性能を支配する要素の一つに透明
基板間の間隔（液晶層々厚）の均一性が掲げられる。不
均一な層厚は不均一なしきい値特性の原因となりコント
ラストムラや色ムラという不良の要因となる。この液晶
層々厚を均一にする為の技術として、重ね合わせする前
の透明基板上に均一な粒径分布を有するギャップ材を散
布した後に重ね合わせる方式が考えられて実用化されて
いる。[Prior Art] One of the factors governing the display performance of a liquid crystal display device is the uniformity of the distance between the transparent substrates (the thickness of each liquid crystal layer). The non-uniform layer thickness causes non-uniform threshold characteristics and causes defects such as contrast unevenness and color unevenness. As a technique for making the thicknesses of the liquid crystal layers uniform, a method in which a gap material having a uniform particle size distribution is sprayed on a transparent substrate before overlapping and then the liquid crystal layers are overlapped has been considered and put to practical use.
前記ギャップ材散布方式による液晶層厚の均一化技術
は画素部にギャップ材がばらまかれる為、ギャップ材自
身の光漏れ及びギャップ材周辺での配向乱れとそれによ
る光漏れの問題があり、高コントラスト化の制約となっ
ていた。The liquid crystal layer thickness uniformization technique using the gap material dispersion method has a problem of light leakage of the gap material itself and alignment disorder around the gap material due to the gap material being dispersed in the pixel portion, thereby causing a problem of light leakage. Was a constraint on
本発明ではかかる問題点を解決し均一な液晶層々厚み
と高いコントラストを両立させた液晶表示装置を得る事
を目的とする。It is an object of the present invention to solve such a problem and to obtain a liquid crystal display device having both a uniform liquid crystal layer thickness and high contrast.
本発明の液晶表示装置は、対向する基板内面に複数の
電極を有する一対の基板間に液晶を挟持してなり、一方
の前記基板上に複数の色要素からなるカラーフィルタを
配置してなり、前記一対の基板の間隔を一定に保つ支柱
を隣接する前記電極の間に形成してなり、前記支柱を前
記複数の色要素からなるカラーフィルターを積層して形
成したことを特徴とする。The liquid crystal display device of the present invention is configured such that liquid crystal is sandwiched between a pair of substrates having a plurality of electrodes on opposing substrate inner surfaces, and a color filter composed of a plurality of color elements is arranged on one of the substrates, A column for maintaining a constant distance between the pair of substrates is formed between the adjacent electrodes, and the column is formed by laminating a color filter including the plurality of color elements.
また、本発明の第２の液晶表示装置は、前記電極の間
に遮光層が形成されてなることを特徴とする。Further, a second liquid crystal display device of the present invention is characterized in that a light shielding layer is formed between the electrodes.
（１）第１図に本発明において用いたカラーフィルター
の構造を示す。101は透明基板であり、102は電極、103
は画素上に設けられたカラーフィルターで104は、カラ
ーフィルターにより形成された基板間隔保持用の為の支
柱である。本発明では透明基板にガラス基板を用い、電
極にはITO透明電極を用いた。また、カラーフィルター
にはカラーモザイク（富士ハントエレクトロニクス社）
を用いてフォトリソグラフィー法により画素形成した。
赤画素はカラーモザイクCRを用いスピンコート法により
塗膜後プリベークし、フォトマスクパターンを通じて紫
外線照斜した後現象・ポストベークしてパターン形成を
行なった。緑画素はCG、青画素はCBを用いてそれぞれ同
様なプロセスにより画素形成を行なった。各画素のサイ
ズは170μｍ角とし画素間はＸ・Ｙ方向ともに30μｍと
した。また、液晶層々厚出しの為の支柱のサイズは10μ
ｍ角とし第２図に示す様な配置とした。ここでＲは赤
の、Ｇは緑の、Ｂは青のそれぞれ画素を示している。赤
のカラーフィルター層々厚を2.54μｍ、緑を2.48μｍ青
を2.83μｍとした際の支柱の高さは7.51μｍであった。
このような透明電極付きカラーフィルターを対向基板と
重ね合わせし周囲をエポキシ系接着剤を用い接着した後
一部接着剤のない封入部より液晶を真空封入法を用いて
注入した際の緑画素での液晶層厚は、4.3μｍであっ
た。第３図はこのようにして作成したカラー液晶表示装
置の断面図であり、201は対向基板で202は電極を表わ
す。本発明ではITO透明電極付きのガラス基板を使用し
た。(1) FIG. 1 shows the structure of a color filter used in the present invention. 101 is a transparent substrate, 102 is an electrode, 103
Numeral 104 denotes a color filter provided on the pixel. Numeral 104 denotes a support formed by the color filter for maintaining a substrate interval. In the present invention, a glass substrate was used as the transparent substrate, and an ITO transparent electrode was used as the electrode. In addition, color mosaic (Fuji Hunt Electronics Co., Ltd.)
Was formed by a photolithography method.
The red pixels were pre-baked after coating by a spin coating method using a color mosaic CR, irradiated with ultraviolet light through a photomask pattern, and then subjected to phenomenon and post-baking to form a pattern. Pixel formation was performed by the same process using CG for the green pixel and CB for the blue pixel. The size of each pixel was 170 μm square, and the distance between pixels was 30 μm in both X and Y directions. In addition, the size of the support for thickening the liquid crystal layers is 10μ.
The arrangement was as shown in FIG. Here, R indicates a red pixel, G indicates a green pixel, and B indicates a blue pixel. When the thickness of each red color filter layer was 2.54 μm, that of green was 2.48 μm, and that of blue was 2.83 μm, the height of the support was 7.51 μm.
This color filter with a transparent electrode is superimposed on the counter substrate, and the surroundings are bonded using an epoxy adhesive. Was 4.3 μm. FIG. 3 is a cross-sectional view of the color liquid crystal display device prepared in this manner, where 201 is a counter substrate and 202 is an electrode. In the present invention, a glass substrate with an ITO transparent electrode was used.
（２）第４図は本発明において用いたもう一つのカラー
フィルターの構造を示す。本実施例では、画素部以外を
ブラックマスクで遮光した場合を示す。401はブラック
マスクを示しており、本発明ではカラーモザイク（富士
ハントエレクトロニクス社）のCKを使用し前記カラーモ
ザイクのCRと同一の形成法により、カラーフィルター形
成前に作製した。第５図にはその平面図を示している。
本実施例では赤のカラーフィルターの画素厚を2.46μ
ｍ、緑を2.41μｍ、赤を2.68μｍとしブラックマスクの
厚さを2.63μｍとした際に、支柱の高さとして7.04μ
ｍ、対向透明電極基板を重ね合わせし周囲をエポキシ樹
脂で接着し、液晶を封入した際に得られた液晶層厚は緑
の画素で6.2μｍであった。(2) FIG. 4 shows the structure of another color filter used in the present invention. In this embodiment, a case is shown in which light is shielded by a black mask except for the pixel portion. Reference numeral 401 denotes a black mask. In the present invention, CK of color mosaic (manufactured by Fuji Hunt Electronics Co., Ltd.) was used, and it was manufactured before forming a color filter by the same forming method as CR of the color mosaic. FIG. 5 is a plan view thereof.
In this embodiment, the pixel thickness of the red color filter is 2.46 μm.
m, 2.41 μm for green, 2.68 μm for red, and 2.63 μm for the thickness of the black mask, the height of the support is 7.04 μm
m, the opposing transparent electrode substrates were overlapped, the periphery was adhered with epoxy resin, and the liquid crystal layer thickness obtained when the liquid crystal was sealed was 6.2 μm for green pixels.
（３）第６図は２色のカラーフィルターを重ね合わせた
場合の断面図を表わし、第７図はその平面図を表わして
いる。カラーフィルターの形成については前記形成法と
同一な方法を用いた。赤のカラーフィルターと緑のカラ
ーフィルターが重なるよう第７図に示すような重なり部
を設けることにより支柱701を形成した。重なり部を10
×50μm2とした。赤の画素の厚み2.53μｍ緑の画素の厚
み2.46μｍとした際支柱の高さは4.63μｍとなり、対向
基板と重ね合わせた後、前記過程により液晶封入を行な
い液晶層厚を測定したところ、緑画素上で2.12μｍとな
った。(3) FIG. 6 shows a cross-sectional view when two color filters are superposed, and FIG. 7 shows a plan view thereof. The same method as described above was used for forming the color filter. The strut 701 was formed by providing an overlapping portion as shown in FIG. 7 so that the red color filter and the green color filter overlapped. 10 overlap
× 50 μm 2 . When the thickness of the red pixel was 2.53 μm and the thickness of the green pixel was 2.46 μm, the height of the support became 4.63 μm.After overlapping with the counter substrate, liquid crystal was sealed by the above process, and the liquid crystal layer thickness was measured. It was 2.12 μm on the pixel.
本発明によれば、カラーフィルターの一部を利用して
液晶層々厚を均一化する為の支柱を表示性能に影響なく
形成する事が出来た。According to the present invention, it is possible to form a column for making the thickness of the liquid crystal layer uniform using a part of the color filter without affecting the display performance.
第１図は本発明に用いたカラーフィルターの断面図を表
わし、第２図はその平面図を表わしている。第３図は、
該カラーフィルターを用いたカラー液晶表示装置の断面
図である。第４図はブラックマスクを採用したカラーフ
ィルターの断面図を表わし、第５図はその平面図を表わ
している。第６図は、２色のカラーフィルターを重ねた
場合の断面図であり、第７図はその平面図を示してい
る。 101……透明基板 102、103……電極 103……カラーフィルター 104、701……支柱 201……対向基板 401……ブラックマスクFIG. 1 is a sectional view of a color filter used in the present invention, and FIG. 2 is a plan view thereof. FIG.
FIG. 3 is a cross-sectional view of a color liquid crystal display device using the color filter. FIG. 4 shows a sectional view of a color filter employing a black mask, and FIG. 5 shows a plan view thereof. FIG. 6 is a cross-sectional view when two color filters are overlapped, and FIG. 7 is a plan view thereof. 101: Transparent substrate 102, 103: Electrode 103: Color filter 104, 701: Support column 201: Counter substrate 401: Black mask
Claims (2)
対の基板間に液晶を挟持してなり、一方の前記基板上に
複数の色要素からなるカラーフィルタを配置してなり、
前記一対の基板の間隔を一定に保つ支柱を隣接する前記
電極の間に形成してなり、前記支柱を前記複数の色要素
からなるカラーフィルターを積層して形成したことを特
徴とする液晶表示装置。1. A liquid crystal is sandwiched between a pair of substrates having a plurality of electrodes on inner surfaces of opposed substrates, and a color filter comprising a plurality of color elements is arranged on one of the substrates,
A liquid crystal display device, wherein a support for maintaining a constant distance between the pair of substrates is formed between the adjacent electrodes, and the support is formed by stacking a color filter including the plurality of color elements. .
とを特徴とする請求項１記載の液晶表示装置。2. The liquid crystal display device according to claim 1, wherein a light shielding layer is formed between said electrodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1119705A JP2751392B2 (en) | 1989-05-12 | 1989-05-12 | Liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1119705A JP2751392B2 (en) | 1989-05-12 | 1989-05-12 | Liquid crystal display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02298916A JPH02298916A (en) | 1990-12-11 |
| JP2751392B2 true JP2751392B2 (en) | 1998-05-18 |
Family
ID=14768049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1119705A Expired - Lifetime JP2751392B2 (en) | 1989-05-12 | 1989-05-12 | Liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2751392B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6317188B1 (en) | 1999-04-20 | 2001-11-13 | Nec Corporation | LCD having particular spacing between spacers |
| US6549260B1 (en) | 1999-03-26 | 2003-04-15 | Nec Corporation | Liquid crystal display device of latitudinal electric field type having protruded spacer covers common line |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW373098B (en) * | 1995-09-06 | 1999-11-01 | Toshiba Corp | Liquid crystal exposure component and its fabricating method |
| US6888608B2 (en) | 1995-09-06 | 2005-05-03 | Kabushiki Kaisha Toshiba | Liquid crystal display device |
| JPH0980447A (en) * | 1995-09-08 | 1997-03-28 | Toshiba Electron Eng Corp | Liquid crystal display element |
| JP2007025715A (en) * | 1996-08-05 | 2007-02-01 | Toray Ind Inc | Substrate for liquid crystal display element and color liquid crystal display element including the same |
| JP2000047200A (en) * | 1998-07-31 | 2000-02-18 | Hitachi Ltd | Diffusive reflector, liquid crystal display device using that, and its production |
| KR101024640B1 (en) * | 2002-12-12 | 2011-03-25 | 엘지디스플레이 주식회사 | Liquid Crystal Display and Method of Fabricating the same |
| JP4455449B2 (en) * | 2005-08-05 | 2010-04-21 | 東芝モバイルディスプレイ株式会社 | Manufacturing method of liquid crystal display element |
| US7764254B2 (en) | 2007-08-29 | 2010-07-27 | Epson Imaging Devices Corporation | Electro-optical device and electronic apparatus |
| JP4968220B2 (en) * | 2008-09-24 | 2012-07-04 | 大日本印刷株式会社 | Color filter, liquid crystal panel substrate, and liquid crystal panel |
-
1989
- 1989-05-12 JP JP1119705A patent/JP2751392B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6549260B1 (en) | 1999-03-26 | 2003-04-15 | Nec Corporation | Liquid crystal display device of latitudinal electric field type having protruded spacer covers common line |
| US6317188B1 (en) | 1999-04-20 | 2001-11-13 | Nec Corporation | LCD having particular spacing between spacers |
| US6459468B2 (en) | 1999-04-20 | 2002-10-01 | Nec Corporation | LCD having particular spacing between spacers |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02298916A (en) | 1990-12-11 |
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