JPS6048020A - Liquid crystal color display element - Google Patents

Liquid crystal color display element

Info

Publication number
JPS6048020A
JPS6048020A JP58154803A JP15480383A JPS6048020A JP S6048020 A JPS6048020 A JP S6048020A JP 58154803 A JP58154803 A JP 58154803A JP 15480383 A JP15480383 A JP 15480383A JP S6048020 A JPS6048020 A JP S6048020A
Authority
JP
Japan
Prior art keywords
liquid crystal
transparent electrode
color filter
display element
crystal orientation
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
Application number
JP58154803A
Other languages
Japanese (ja)
Inventor
Kiyoshige Kinugawa
清重 衣川
Yoshio Hanada
花田　良雄
Toshiyuki Sakuma
敏幸 佐久間
Toshihiko Yabuuchi
籔内　俊彦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP58154803A priority Critical patent/JPS6048020A/en
Publication of JPS6048020A publication Critical patent/JPS6048020A/en
Pending legal-status Critical Current

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
    • G02F1/133514—Colour filters
    • 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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133711—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films

Abstract

PURPOSE:To obtain the titled element capable of reducing cost and voltage drop by forming a color filter obtained by mixing a dye with a polyimide type polymer on a transparent electrode formed on a glass base, and rubbing it to give a liquid crystal orientation ability. CONSTITUTION:An SiO2 film 2 and a transparent electrode 3 are successively formed on the inside of a glass base 1, and a color filter 6 made by mixing a dye into a polyimide type polymer high in the performance of control of liquid crystal orientation is formed on the transparent electrode 3, the color filter 6 is directly rubbed to give liquid crystal orientation ability, and an intended liquid crystal color display element is thus obtained. As a result, the manufacturing process is simplified, cost is reduced, an orienting film on the transparent electrode 3 is thinned, and therefore, drop of liquid crystal drive voltage can be lowered.

Description

【発明の詳細な説明】 〔発明の利用分野〕 本発明はカラー表示液晶表示素子に係シ、特にガラス基
板の内面にカラーフィルターを配置した液晶表示素子に
関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a color display liquid crystal display element, and more particularly to a liquid crystal display element in which a color filter is arranged on the inner surface of a glass substrate.

〔発明の背景〕[Background of the invention]

周知の如く、ツィスティッドネマチック液晶表示素子は
、透明ｔ＆、極が形成された２枚の上下ガラス基板間で
液晶分子がらせん状構造をなすように配向させるために
、ガラス基板の液晶に接する表面を、例えば布などで一
方向にこする、いわゆるラビング法が行なわれてい゛る
。仁のようにして配向処理された２枚のガラス基板をそ
れぞれのラビング方向、即ち配向方向が例えば９０度に
交叉するように対向させ、周辺をシール材によシ接着し
、内部に液晶、例えば正の誘電異方性をもったネマチッ
ク液晶を封入すると、液晶分子は上下ガラス基板間でら
せん状構造の分子配列をする。As is well-known, twisted nematic liquid crystal display elements are designed to align liquid crystal molecules so as to form a spiral structure between two upper and lower glass substrates on which transparent T& poles are formed. A so-called rubbing method is used in which the material is rubbed in one direction with, for example, a cloth. Two glass substrates that have been oriented in a parallel manner are placed facing each other so that their respective rubbing directions, that is, the alignment directions intersect at, for example, 90 degrees, the periphery is adhered with a sealant, and a liquid crystal, for example, is placed inside. When a nematic liquid crystal with positive dielectric anisotropy is sealed, the liquid crystal molecules are arranged in a spiral structure between the upper and lower glass substrates.

このようにして構成した液晶セルの上ガラス基板の外側
に偏光板を、下ガラス基板の外側に偏光板を介して反射
板をそれぞれ貼り合わせることにより反射型液晶表示素
子を構成する。A reflective liquid crystal display element is constructed by attaching a polarizing plate to the outer side of the upper glass substrate of the liquid crystal cell constructed in this way, and a reflecting plate to the outer side of the lower glass substrate via the polarizing plate.

ところで、ツィスティッドネマチック液晶表示素子を光
のシャッターとして動作させ、これにカラーフィルター
を加えてカラー表示する液晶表示素子として、従来、カ
ラーフィルターを液晶表示素子を構成するガラス基板の
内面に配置したものが知られている。この構造は、第１
図に示すようにガラス基板ｌの内面上に、順次８ｉ０ｘ
膜２へ透明電極３、カラーフィルター４、配向膜５を形
成し、更に配向膜５をラビングして液晶配向性？もたせ
ている。この構造は、カラーフィルター４が透明電極３
と嫌は同一平面にあるので、視差がなく、ｆｓ度の良い
カラー表示が可能である。By the way, as a liquid crystal display element in which a twisted nematic liquid crystal display element operates as a light shutter and a color filter is added to display color, conventionally, a color filter is placed on the inner surface of a glass substrate that constitutes the liquid crystal display element. It has been known. This structure is the first
8i0x on the inner surface of the glass substrate l as shown in the figure.
A transparent electrode 3, a color filter 4, and an alignment film 5 are formed on the film 2, and the alignment film 5 is further rubbed to improve liquid crystal alignment. I'm leaning on it. In this structure, the color filter 4 is connected to the transparent electrode 3.
Since the two surfaces are on the same plane, there is no parallax and color display with good fs is possible.

しかし７ながら、かかる構造は透明電極３上に２８Ｉり
ηの薄膜４，５を形成する必要があるので、工程が檜雑
でコストアップに々ると共に、透明電極３上の薄膜が凡
くなり、これらの膜による液晶駆動電圧の電圧降下が大
きいという欠点を肩する。However, in this structure, it is necessary to form the thin films 4 and 5 of 28I to η on the transparent electrode 3, so the process is complicated and costs increase, and the thin film on the transparent electrode 3 becomes thin. , which suffers from the drawback that the voltage drop in the liquid crystal driving voltage due to these films is large.

０発６７Ｊの目的〕 本発明の目的は、コストおよび電圧降下の低減を図るこ
とができるカラー表示液晶表示素子を提供することにあ
る。0 Shot 67J Object] An object of the present invention is to provide a color display liquid crystal display element that can reduce cost and voltage drop.

〔発明の概要〕[Summary of the invention]

本発明は、ガラス基板上に形成された透明電極上に、ポ
リイミド系高分子に染料を混合【７たカラー７・ｆルタ
ーを形成し、このカラーフィルターをラビングして液晶
配向性をもたせたことを特徴とする。The present invention involves forming a color 7.f filter in which dye is mixed with a polyimide polymer on a transparent electrode formed on a glass substrate, and rubbing this color filter to impart liquid crystal orientation. It is characterized by

〔発明の奥施例〕　゛ 本発明は、透明ｉ１！、極上に液晶の配向制御能力の高
いポリイミド系高分子に染料を混合したカラーに、透明
電極上にはカラーフィルターのみを形成し、このカラー
フィルターに液晶配向性をもたせているので、工程が単
純でコスト低減が図れると共に、透明電極上の薄膜が薄
くなり、電圧降下も減少する。[Embodiment of the invention] ゛The present invention is transparent i1! The process is simple because only a color filter is formed on the transparent electrode using a color mixture of dye and a polyimide polymer that has an extremely high ability to control liquid crystal alignment, and this color filter has liquid crystal alignment. In addition to reducing costs, the thin film on the transparent electrode becomes thinner, reducing voltage drop.

以下、本発明の一実施例を第２図により説明する。なお
、館！図と同じ部材には同一符号を付し、その説明を省
略する。透明電極３上に液晶の配向制御能力の高いポリ
イミド糸筒分子に染料を混合した力２〜フィルター６′
を形成し、この力２−フィルター６を直接ラビングして
液晶配向性をもたせている。An embodiment of the present invention will be described below with reference to FIG. In addition, the building! The same members as in the figures are given the same reference numerals, and their explanations will be omitted. On the transparent electrode 3 are filters 2 to 6', which are made of a polyimide thread tube with a high ability to control the alignment of liquid crystals, mixed with dye.
This force 2-filter 6 is directly rubbed to provide liquid crystal orientation.

このように、透明［極３上にはカラーフィルター６のみ
を形成し、このカラーフィルター６に液晶配向性をもた
せているので、工程が単純でコスト低減が図れると共に
、透明電極３上の薄膜が薄くなシ、電圧降下も減少する
。例えば、カシ−フィルター６の膜厚を０．３〜５μｍ
に形成したところ、非常に良好な結果が得られた。In this way, only the color filter 6 is formed on the transparent electrode 3, and this color filter 6 has liquid crystal orientation, so the process is simple and costs can be reduced, and the thin film on the transparent electrode 3 is It is thinner and voltage drop is also reduced. For example, the film thickness of the Cassie filter 6 is set to 0.3 to 5 μm.
When formed, very good results were obtained.

〔発明の効果〕〔Effect of the invention〕

本発明によれば、透明電極上にポリイミド系高分子に染
料を混合したカラーフィルターを形成し、このカラーフ
ィルターをラビングしてなるので、コストおよび電圧降
下の低減が図れる。According to the present invention, a color filter made of a polyimide polymer mixed with a dye is formed on a transparent electrode, and this color filter is rubbed, so that cost and voltage drop can be reduced.

【図面の簡単な説明】[Brief explanation of the drawing]

図は力２−表示液晶表示素子を構成するガラス基板を示
し、第１図は従来例の断面図、第２図は本発明の一実施
例を示す断面図である。 １・・・・ガラス基板、３・・・・透明電極、６・・・
・カラーフィルター。The figures show a glass substrate constituting a liquid crystal display element, FIG. 1 is a sectional view of a conventional example, and FIG. 2 is a sectional view showing an embodiment of the present invention. 1...Glass substrate, 3...Transparent electrode, 6...
·Color filter.

Claims (1)

【特許請求の範囲】[Claims] ガラス基板上に形成した透明電極上に、ポリイミド系高
分子に染料を混合したカラーフィルターを形成し、この
カラーフィルターをラビングして液晶配向性をもたせて
なるカラー表示液晶表示素子。A color display liquid crystal display element in which a color filter made of polyimide-based polymer mixed with dye is formed on a transparent electrode formed on a glass substrate, and this color filter is rubbed to impart liquid crystal orientation.
JP58154803A 1983-08-26 1983-08-26 Liquid crystal color display element Pending JPS6048020A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58154803A JPS6048020A (en) 1983-08-26 1983-08-26 Liquid crystal color display element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58154803A JPS6048020A (en) 1983-08-26 1983-08-26 Liquid crystal color display element

Publications (1)

Publication Number Publication Date
JPS6048020A true JPS6048020A (en) 1985-03-15

Family

ID=15592226

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58154803A Pending JPS6048020A (en) 1983-08-26 1983-08-26 Liquid crystal color display element

Country Status (1)

Country Link
JP (1) JPS6048020A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62242918A (en) * 1986-04-15 1987-10-23 Kyodo Printing Co Ltd Color filter
JPS62254103A (en) * 1986-04-26 1987-11-05 Kyodo Printing Co Ltd Color filter
JPH02123328A (en) * 1988-11-01 1990-05-10 Fujitsu Ten Ltd Liquid crystal color display device
JPH02130528A (en) * 1988-11-11 1990-05-18 Nippon I B M Kk Color liquid crystal display device and production thereof
US5229039A (en) * 1988-11-11 1993-07-20 International Business Machines Corporation Color liquid crystal display and method of manufacture

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62242918A (en) * 1986-04-15 1987-10-23 Kyodo Printing Co Ltd Color filter
JPS62254103A (en) * 1986-04-26 1987-11-05 Kyodo Printing Co Ltd Color filter
JPH02123328A (en) * 1988-11-01 1990-05-10 Fujitsu Ten Ltd Liquid crystal color display device
JPH02130528A (en) * 1988-11-11 1990-05-18 Nippon I B M Kk Color liquid crystal display device and production thereof
EP0369663A2 (en) * 1988-11-11 1990-05-23 International Business Machines Corporation Colour liquid crystal display
US5229039A (en) * 1988-11-11 1993-07-20 International Business Machines Corporation Color liquid crystal display and method of manufacture

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