JPS63144326A - Color liquid crystal display device - Google Patents
Color liquid crystal display deviceInfo
- Publication number
- JPS63144326A JPS63144326A JP61292107A JP29210786A JPS63144326A JP S63144326 A JPS63144326 A JP S63144326A JP 61292107 A JP61292107 A JP 61292107A JP 29210786 A JP29210786 A JP 29210786A JP S63144326 A JPS63144326 A JP S63144326A
- Authority
- JP
- Japan
- Prior art keywords
- color
- liquid crystal
- light
- polarizer
- polarizers
- 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
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 38
- 238000010521 absorption reaction Methods 0.000 claims abstract description 29
- 230000010287 polarization Effects 0.000 claims abstract description 23
- 239000000758 substrate Substances 0.000 claims abstract description 23
- 230000007935 neutral effect Effects 0.000 claims abstract description 11
- 239000011521 glass Substances 0.000 abstract description 21
- 239000004988 Nematic liquid crystal Substances 0.000 abstract description 3
- 210000004027 cell Anatomy 0.000 description 14
- 239000003086 colorant Substances 0.000 description 8
- 230000000295 complement effect Effects 0.000 description 5
- 238000004043 dyeing Methods 0.000 description 5
- 239000004372 Polyvinyl alcohol Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 description 4
- 230000005684 electric field Effects 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 210000002858 crystal cell Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 210000002784 stomach Anatomy 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
- G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
- G02F1/13475—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells in which at least one liquid crystal cell or layer is doped with a pleochroic dye, e.g. GH-LC cell
-
- 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
- G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
- G02F1/13471—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells in which all the liquid crystal cells or layers remain transparent, e.g. FLC, ECB, DAP, HAN, TN, STN, SBE-LC cells
- G02F1/13473—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells in which all the liquid crystal cells or layers remain transparent, e.g. FLC, ECB, DAP, HAN, TN, STN, SBE-LC cells for wavelength filtering or for colour display without the use of colour mosaic 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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
- G02F1/133533—Colour selective polarisers
Abstract
Description
【発明の詳細な説明】
（イ）産業上の利用分野
今日、液晶を用いたカラー表示装置として種々の方式が
提案されている。その中で、液晶セルの内面、赤、緑、
青の微細パターンからなるカラーフィルタ層を形成した
カラー液晶表示装置は、セルの構造が比較的簡単で、フ
ルカラー表示が可能であるという特徴を有している。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application Today, various systems have been proposed as color display devices using liquid crystals. Among them, the inner surface of the liquid crystal cell, red, green,
A color liquid crystal display device in which a color filter layer consisting of a blue fine pattern is formed has a relatively simple cell structure and is capable of full-color display.
この発明は、赤、緑、青の微細パターンを有しフルカラ
ー表示が可能なカラー液晶表示装置の改良に関する。The present invention relates to an improvement in a color liquid crystal display device that has fine patterns of red, green, and blue and is capable of full-color display.
（ロ）従来の技術
従来のカラー液晶表示装置［）ａは第５図に示すように
、ゼラチン、グリユーあるいはカゼインからなるレリー
フパターンを、ホトリソグラフィーの手法により、赤、
緑、青の各色に染色したカラーフィルタ９ａ、１０ａ、
１１ａ、ツィステッド・ネマティック液晶１１３６ａ及
び２枚の中性偏光子３７ａ、３７ｂを組み合わせて構成
したものである。(b) Prior art Conventional color liquid crystal display device [a] As shown in FIG.
Color filters 9a, 10a dyed in green and blue colors,
11a, twisted nematic liquid crystal 1136a, and two neutral polarizers 37a and 37b.
他の従来のカラー液晶表示装置Ｄａは第６図に示すよう
に、２色性染料を一方向に整列させたカラー漏光子９ｃ
、１０ｃ、１１ｃと中性偏光子３７ｃとを組み合わせて
構成したものである（以上、特開昭５８−７１７７号公
報、特開昭５８−１７４２０号公報を参照）。Another conventional color liquid crystal display device Da, as shown in FIG.
, 10c, 11c and a neutral polarizer 37c (refer to JP-A-58-7177 and JP-A-58-17420).
（ハ）発明が解決しようとする問題点
カラー液晶表示装置Ｄａでは、通常２枚の中性偏光子３
．７ａ 、 ３７ｂをその偏光方向Ｃ矢印ＥａとＦｌ）
方向）が平行になるように位置しており、透明電極２４
ａと１８ａ 、１９ａ 、２０ａ １．：電圧を非印加
にして黒の表示を行ない、且つ、電圧を印加することで
、その絵素の液晶分子を電界方向に立ち上がらせ、カラ
ーフィルタ自身の色の表示を行っている。従って、赤、
緑、青の各絵素に印加する電圧を、それぞれ独立に任意
に選ぶことにより、黒の地に任意の色が表示できる。(c) Problem to be solved by the invention In the color liquid crystal display device Da, normally two neutral polarizers 3
．． 7a, 37b with their polarization directions C arrows Ea and Fl)
direction) are parallel to each other, and the transparent electrode 24
a and 18a, 19a, 20a 1. : Black is displayed when no voltage is applied, and when voltage is applied, the liquid crystal molecules of the picture element stand up in the direction of the electric field, thereby displaying the color of the color filter itself. Therefore, red,
By arbitrarily and independently selecting the voltages applied to each of the green and blue picture elements, any color can be displayed on a black background.
しかしながら、このカラー液晶表示装置［）ａでは、赤
、緑、赤の重色表示の場合、全体の三分の−しか表示に
寄与できず、全体が暗い表示しか得られないという問題
があった。However, this color liquid crystal display device [)a has a problem in that, in the case of red, green, and red superimposed color display, only a third of the total can contribute to the display, resulting in only a dark display overall. .
この問題を解決するために、裏側に光源を置くことによ
り、コントラストの優れた明るい表示を行うことは可能
である。しかし、そうすると、液晶表示装置が一般にも
つ低消費電力、及び薄型化が可能であるといったメリッ
トが、裏に光源を置いてしか使えないということによっ
て損われるということになり好ましくはない。To solve this problem, it is possible to provide a bright display with excellent contrast by placing a light source on the back side. However, in this case, the advantages that liquid crystal display devices generally have, such as low power consumption and the ability to be made thinner, are impaired by the fact that they can only be used with a light source placed on the back, which is not preferable.
カラー液晶表示装置ＤＣでは、上記カラー液晶表示装置
Ｄａと同様に、赤、緑、胃の単色表示の場合、全体の三
分の−しか表示に寄与できないという問題がある。加え
て、黒の表示ができないという問題がある。無電界時に
は、直線偏光の偏光方向がカラー偏光子９Ｃ，、１０ｃ
、 １１ｃの吸収軸方向と一致するために、それぞれ
、赤、縁、青の色として観顕される。次に、電界印加時
には、直線偏光がカラー偏光子９ｃ、１０ｃ、１１ｃで
吸収されず、無色として観察される。カラー液晶表示装
置［）Ｃでは、白色あるいは無色の中に任意の色を表示
することから、全体が明るくはなるが、その反面、表示
コントラストが劣るという問題がある。Similar to the color liquid crystal display device Da, the color liquid crystal display device DC has a problem in that, in the case of monochromatic display of red, green, and stomach, only a third of the total can be contributed to the display. In addition, there is a problem that black cannot be displayed. When there is no electric field, the polarization direction of linearly polarized light is the color polarizer 9C, 10c.
, 11c, and are therefore observed as red, edge, and blue colors, respectively. Next, when an electric field is applied, the linearly polarized light is not absorbed by the color polarizers 9c, 10c, and 11c, and is observed as colorless. The color liquid crystal display device [)C displays any color in white or colorless, so the overall display becomes brighter, but on the other hand, there is a problem in that the display contrast is poor.
この発明は上記の事情に鑑みてなされたものであり、表
示面積を拡大し、表示が明るく、表示コントラストが優
れ、しかも低消費電力で且つ薄型という特長を確保した
カラー液晶表示装置を提供するものである。This invention has been made in view of the above circumstances, and provides a color liquid crystal display device that has an enlarged display area, a bright display, excellent display contrast, low power consumption, and a thin profile. It is.
（ニ）問題点を解決するための手段
この発明は、積層したカラー偏光子のうちのいずれか、
又は黒色が選択的に表示できるカラー液晶表示装置であ
る。(d) Means for solving the problem The present invention provides a method for solving the problems by using any one of laminated color polarizers,
Alternatively, it is a color liquid crystal display device that can selectively display black.
その詳細な構成は、電圧の印加に応答して入射偏光の偏
光方向を選択的に９ｃ゛回転させる積層関係に配置され
た第一及び第二の液晶層をそれぞれ挾設する各基板の互
いに対応する部位に、吸収特性が互いに異なり且つ吸収
軸方向が互いに直交する少なくとも２１１Ｎのカラー偏
光子が積層関係で配設され、光の入射側又は出射側には
偏光方向が上記吸収軸方向と平行又は直交状態にあΦ中
性偏光子が配設され、上記カラー偏光子の互いに対応す
る上下層位置にあるものは、吸収軸方向が略々同方向に
設定されていることを特徴とするカラー液晶表示装置で
ある。Its detailed configuration consists of two substrates each sandwiching a first and second liquid crystal layer arranged in a stacked relationship that selectively rotates the polarization direction of incident polarized light by 9c in response to the application of a voltage. At least 211N color polarizers having different absorption characteristics and whose absorption axes are perpendicular to each other are arranged in a stacked manner in the parts where the light is incident and the polarization direction is parallel or parallel to the absorption axis direction. A color liquid crystal characterized in that Φ neutral polarizers are disposed orthogonally to each other, and the absorption axes of the color polarizers located in mutually corresponding upper and lower layer positions are set in substantially the same direction. It is a display device.
（ホ）作 用
第−の液晶層で２個のカラー偏光子のどららかが２択さ
れ、第二の液晶層で吸収又は透過される。(E) Function One of the two color polarizers is selected in the second liquid crystal layer, and the light is absorbed or transmitted in the second liquid crystal layer.
（へ）実施例
この発明を第１〜４図に示す実施例に基づき詳述するが
、これによってこの発明が限定されるものではない。(f) Examples This invention will be described in detail based on the examples shown in FIGS. 1 to 4, but the invention is not limited thereby.
第１図に、カラー液晶表示装置りの構成説明図を示す。FIG. 1 shows an explanatory diagram of the configuration of a color liquid crystal display device.
平行に配設されたガラス基板１．２及び２．３とによっ
て二つのセル４，５が形成されている。ガラス基板２上
に、それぞれ青、赤、緑のカラー偏光子６．７．８が積
層されている。カラー偏光子６，７．８の吸収軸方向は
、矢印へ方向である。カラー偏光子６．７．８は、ガラ
ス基板２上に一軸延伸したポリビニルアルコールフィル
ム（図示省略）を矢印へ方向に合わせて貼り付け、それ
ぞれ青、赤、緑の二色性染料を用いて所定のパターンに
染色することによって形成する。Two cells 4, 5 are formed by glass substrates 1.2 and 2.3 arranged in parallel. Blue, red, and green color polarizers 6.7.8 are laminated on the glass substrate 2, respectively. The absorption axis direction of the color polarizers 6, 7.8 is in the direction of the arrow. The color polarizer 6.7.8 is made by pasting a uniaxially stretched polyvinyl alcohol film (not shown) on the glass substrate 2 in the direction of the arrow, and using dichroic dyes of blue, red, and green, respectively. It is formed by dyeing it into a pattern.
カラー偏光子６．７．８上に、それぞれ赤、緑、肯であ
る二苦目のカラー偏光子９．１０．１１が積層されてい
る。カラー（偏光子９，１０．１１の吸収軸方向は、矢
印Ｂ方向であって、カラー偏光子６，７．８の吸収軸方
向と直交状態となっている。カラー偏光子９．１０．１
１は、カラー偏光子６，７．８上に一軸延伸したポリビ
ニルアルコールフィルム（図示省略）を矢印Ｂ方向に合
わせて貼り付け、それぞれ赤、緑、青の二色性染料を用
いて所定のパターンに染色することによって形成する。Laminated on the color polarizer 6.7.8 are red, green, and second color polarizers 9.10.11, respectively. Color (The absorption axis direction of the color polarizers 9, 10.11 is in the direction of arrow B, and is perpendicular to the absorption axis direction of the color polarizers 6, 7.8. Color polarizer 9.10.1
1, a uniaxially stretched polyvinyl alcohol film (not shown) is pasted on color polarizers 6 and 7.8 in the direction of arrow B, and predetermined patterns are formed using red, green, and blue dichroic dyes, respectively. Formed by dyeing.
ガラス基板３上のカラー偏光子６，７．８と対応する部
位に、それぞれカラー偏光子６，７．８の色である青、
赤、緑と補色関係にある黄、シアン、マゼンタのカラー
偏光子１２．１３．１４が積層されている。カラー偏光
子１２．１３．１４の吸収方向は、カラー偏光子６，７
．８の吸収方向と同じであり、矢印Ｃ方向である。力オ
ー偏光子１２，１３．１４は、ガラス基板３上に一軸延
伸したポリビニルアルコールフィルム（図示省略）を矢
印Ｃ方向に合わせて貼り付け、それぞれ黄、シアン、マ
ゼンタを用いて所定のパターンに染色することによって
形成する。Blue, which is the color of the color polarizers 6 and 7.8, is placed on the glass substrate 3 at locations corresponding to the color polarizers 6 and 7.8, respectively.
Yellow, cyan, and magenta color polarizers 12, 13, and 14, which are complementary colors to red and green, are stacked. The absorption directions of color polarizers 12, 13, and 14 are the same as those of color polarizers 6 and 7.
．． 8, which is the direction of arrow C. The Force-O polarizers 12, 13, and 14 are made by pasting a uniaxially stretched polyvinyl alcohol film (not shown) on the glass substrate 3 in the direction of arrow C, and dyeing it in a predetermined pattern using yellow, cyan, and magenta, respectively. Form by doing.
カラー偏光子１２，１３．１４上に、それぞれカラー変
更子９．１０．１１の色である赤、緑、青と補色関係に
あるシアン、マゼンタ、黄である二層目のカラー偏光子
１５，１６．１７が積層されている。カラー偏光子１５
．１６．１７の吸収軸方向は、矢印Ｅ方向であって、カ
ラー偏光子１２．１３．１４の吸収軸方向と直交状態と
なっている。カラー偏光子１５．１６．１７は、カラー
Ｓ光子１２，１３．１４上に一軸延伸したポリビニルア
ルコールフィルム（図示省略）を矢印Ｅ方向に貼り付け
、それぞれシアン、マぜンタ、黄の染色を用いて所定の
パターンに染色することによって形成する。On the color polarizers 12, 13.14, a second layer of color polarizers 15, which are cyan, magenta, and yellow, which are complementary colors to red, green, and blue, which are the colors of the color modifiers 9, 10, and 11, respectively. 16.17 are stacked. color polarizer 15
．． The absorption axis direction of 16.17 is the direction of arrow E, and is orthogonal to the absorption axis direction of color polarizer 12.13.14. Color polarizers 15, 16, and 17 are made by pasting a uniaxially stretched polyvinyl alcohol film (not shown) on color S photons 12, 13, and 14 in the direction of arrow E, and dyeing them cyan, magenta, and yellow, respectively. It is formed by dyeing it in a predetermined pattern.
ガラス基板２上の一層目のカラー偏光子６，７゜８と二
層目のカラー偏光子９．１０．１１とは、−ピッチずつ
色がずれている。同様に、ガラス基板３上の一層目のカ
ラー偏光子１２．１３．１４と二層目のカラー偏光子１
５，１６．１７とは、−ピッチずつ色がずれている。The colors of the first-layer color polarizers 6, 7.8 and the second-layer color polarizers 9, 10, and 11 on the glass substrate 2 are shifted by -pitch. Similarly, the first layer color polarizer 12, 13, 14 on the glass substrate 3 and the second layer color polarizer 1
5, 16, and 17, the colors are shifted by -pitch.
１８．１９，２０．２１，２２．２３は、透明電極であ
る。透明電極１８．１９．２０，２１゜２２．２３は、
低温スパッタリングにより透明導電膜を形成したのち所
定のパターンにエツチングすることによって形成する。18.19, 20.21, and 22.23 are transparent electrodes. Transparent electrodes 18.19.20, 21°22.23 are
A transparent conductive film is formed by low-temperature sputtering and then etched into a predetermined pattern.
又、２４及び２５は、それぞれ透明電極１８゜１９．２
０及び２１．２２．２３に対応する透明電極である。Further, 24 and 25 are transparent electrodes 18°19.2, respectively.
0 and 21.22.23.
２６．２７．２８．２９．３０．３１はそれぞれ、透明
電極２４と１８．１９．２０．及び２５と２１．２２．
２３との間に電圧を印加するための電源である。26.27.28.29.30.31 are the transparent electrode 24 and 18.19.20., respectively. and 25 and 21.22.
This is a power supply for applying a voltage between the terminal and the terminal 23.
３２．３３．３４．３５は、液晶分子配向膜である。32, 33, 34, and 35 are liquid crystal molecule alignment films.
セル４．５内にはツィステッド・ネマティック液晶３６
が注入され、シール（図示省略）、によって封止されて
いる。Twisted nematic liquid crystal 36 inside cell 4.5
is injected and sealed with a seal (not shown).
３７は、セル４の入射光側に配設した中性偏光子である
。中性偏光子３７の偏光方向は、矢印Ｆ方向である。つ
まり、中性偏光子３７の偏光方向は、カラー偏光子９．
１０．１１，１５，１６゜１７の吸収軸方向に対し直交
し、且つカラー偏光子６，７．８，１２，１３．１４の
吸収軸方向と平行の関係である。37 is a neutral polarizer disposed on the incident light side of the cell 4. The polarization direction of the neutral polarizer 37 is in the direction of arrow F. That is, the polarization direction of the neutral polarizer 37 is the same as that of the color polarizer 9.
10.11, 15, 16.degree. 17, and perpendicular to the absorption axis direction of the color polarizers 6, 7.8, 12, 13.14.
カラー液晶表示装置りは上述したとおりに構成されてお
り、以下においてその動作を説明する。The color liquid crystal display device is constructed as described above, and its operation will be explained below.
第２図に、赤の単色表示を行なう例を示す。透明型？ｆ
１９．２４及び２３．２５との間に電圧を印加する。入
射光（矢印し）は中性偏光子３７で矢印Ｆ方向に偏向さ
れた後、ガラス基板１、透明電極２４、液晶分子配向膜
３２を透過してセル４の液晶３６の腎へ入る。透明電極
１８．２４及び２０．２４の間では、光は９０’だけね
じれてそれぞれ透明電極１８．２０に到達する。透明電
極１９．２４の間では、光はねじれることなくそのまま
で透明電極１９に到達する。FIG. 2 shows an example of monochromatic red display. Transparent type? f
A voltage is applied between 19.24 and 23.25. The incident light (indicated by an arrow) is deflected in the direction of arrow F by a neutral polarizer 37, and then passes through the glass substrate 1, the transparent electrode 24, and the liquid crystal molecule alignment film 32, and enters the liquid crystal 36 of the cell 4. Between the transparent electrodes 18.24 and 20.24, the light is twisted by 90' to reach the respective transparent electrode 18.20. Between the transparent electrodes 19 and 24, the light reaches the transparent electrode 19 without being twisted.
透明電極１８に到達した光は、カラー偏光子９に入り赤
色に着色される。その下層のカラー偏光子６では、カラ
ー偏光子９で赤色となった光の偏光方向とカラー偏光子
６の吸収軸方向とが直交しているから何ら影響を受けず
にそのまま透過する。The light that has reached the transparent electrode 18 enters the color polarizer 9 and is colored red. In the color polarizer 6 in the lower layer, since the polarization direction of the red light in the color polarizer 9 and the absorption axis direction of the color polarizer 6 are perpendicular to each other, the light passes through without being affected in any way.
カラー偏光子６を透過した赤色の光は、ガラス基板２、
透明電極２５、液晶分子配向膜３４を透過してセル５へ
と進み、９０’だけねじれ偏光方向を９０”だけねじれ
て透明電極２１に到達する。The red light transmitted through the color polarizer 6 is transmitted to the glass substrate 2,
The light passes through the transparent electrode 25 and the liquid crystal molecule alignment film 34 and proceeds to the cell 5, twists by 90', twists the polarization direction by 90'', and reaches the transparent electrode 21.
透明電極２１に到達した光はカラー偏光子１５へと進む
が、このときの光の偏光方向とカラー偏光子１５の吸収
軸方向とは直交していて異なっているため、光はシアン
色による吸収がなく赤色のままカラー偏光子１５を透過
してカラー偏光子１２へと進む。カラー偏光子１２へと
進む光の偏光方向とカラー偏光子１２の吸収軸方向とは
平行であるが、カラー偏光子１２は黄であり赤色の光は
そのまま透過し、ガラス基板３の下方で赤色として１２
察される。The light that has reached the transparent electrode 21 travels to the color polarizer 15, but since the polarization direction of the light and the absorption axis direction of the color polarizer 15 are orthogonal to each other and different, the light is absorbed by the cyan color. The light passes through the color polarizer 15 as a red color and advances to the color polarizer 12. The polarization direction of the light traveling to the color polarizer 12 is parallel to the absorption axis direction of the color polarizer 12, but since the color polarizer 12 is yellow, the red light is transmitted as it is, and the red light is transmitted below the glass substrate 3. as 12
be noticed.
透明電極２０に到達した光は、カラー偏光子１１に入り
青色に着色され、カラー偏光子８でそのまま透過しセル
５へと進む。セル５へ進んだこの光は、透明電極２３．
２５の間に電気が印加されていることよりねじれること
なく透明電極２３に到達し、カラー偏光子１７へ進む。The light that has reached the transparent electrode 20 enters the color polarizer 11 and is colored blue, passes through the color polarizer 8 as it is, and proceeds to the cell 5. This light traveling to the cell 5 passes through the transparent electrode 23.
Since electricity is applied between 25 and 25, the light reaches the transparent electrode 23 without being twisted and proceeds to the color polarizer 17.
カラー偏光子１７では、カラー偏光子１７が青と補色関
係にある黄のために青色の光は吸収されでぶ所されガラ
ス基板３の下方では黒色と観察される。In the color polarizer 17, since the color polarizer 17 is yellow, which is a complementary color to blue, the blue light is absorbed and left behind, and the area below the glass substrate 3 is observed as black.
透明電極１９に到達した光はカラー偏光子１０゜７へと
進むが、偏光方向と吸収軸方向が同じであルカラー偏光
子７で赤色に着色されてセル５へと進む。カラー偏光子
７がらの赤色の光は、セル５で９０”だけねじられ、マ
ゼンタのカラー偏光子１６はそのまま透過する。更に、
赤色と補色関係にあるシアンのカラー偏光子１３では、
偏光方向とが直交しているために吸収されることなくそ
のままカラー偏光子１３を透過し、ガラス基板３の下方
では赤色と観察される。The light that has reached the transparent electrode 19 travels to the color polarizer 10.7, but since the polarization direction and the absorption axis direction are the same, the light is colored red by the color polarizer 7 and travels to the cell 5. The red light from the color polarizer 7 is twisted by 90'' in the cell 5, and is transmitted through the magenta color polarizer 16 as is.Furthermore,
In the cyan color polarizer 13, which has a complementary color relationship with red,
Since the polarization direction is perpendicular to the polarization direction, the light passes through the color polarizer 13 without being absorbed, and is observed as red under the glass substrate 3.
以上より、カラー液晶表示装置りは、その表示部分全体
の部分の二で赤色表示を行って邦り表示面積が大きく、
又このことより画面も明るくコントラストが優れている
。従って、光源を特別に備えているわけでないから、消
費電力及び薄型は変らずに確保されている。From the above, the color liquid crystal display device displays red in the second part of the entire display area, so the display area is large.
Additionally, the screen is bright and has excellent contrast. Therefore, since no special light source is provided, power consumption and thinness remain unchanged.
第３図に、左側に赤色の表示、中央に緑の表示、右側に
黒の表示をそれぞれ行なう例を示す。透明層ｆｆ１２３
．２５の間に電圧を印加して中性偏光子３７の上方より
光（矢印Ｌ）を入射する。左側では、第２図で示したと
同様に赤色の光がガラス基板３の下方で観察される。中
央では、光はカラー偏光子１ｏにおいてカラー偏光子１
０の吸収軸方向と偏光方向が同じであることより緑色に
着色され、カラー偏光子７においてカラー偏光子７の吸
収軸方向と偏光方向が異なることよりそのまま透過しセ
ル５へと進む。光はセル５の液晶３６で偏光方向が９０
°だけねじれるが、ねじれて得られた偏光方向はカラー
偏光子１６の吸収軸方向と直交しているから緑色の光は
カラー偏光子１６において吸収されることなくそのまま
透過し、カラー偏光子１３に進む。カラー偏光子１３に
おいて、緑色はシアンと補色関係にないから、緑色の光
はそのまま透過し、ガラス基板３の下方で緑色の光が観
察される。右側では、第２図で示したと同様に、黒色の
表示となる。ここで、カラー偏光子９゜１０．１１を極
めて細かくすると加法混色によってガラス基板３の下方
で黄色が観察できる。FIG. 3 shows an example in which red is displayed on the left, green is displayed in the center, and black is displayed on the right. transparent layer ff123
．． A voltage is applied between 25 and light (arrow L) is incident from above the neutral polarizer 37. On the left side, red light is observed below the glass substrate 3, similar to that shown in FIG. In the center, the light passes through color polarizer 1 in color polarizer 1o.
Since the absorption axis direction and the polarization direction of 0 are the same, the light is colored green, and since the absorption axis direction and the polarization direction of the color polarizer 7 are different, the light passes through the color polarizer 7 as it is and proceeds to the cell 5. The light is polarized in the liquid crystal 36 of cell 5 with a polarization direction of 90.
However, since the polarization direction obtained by twisting is orthogonal to the absorption axis direction of the color polarizer 16, the green light is transmitted as it is without being absorbed by the color polarizer 16, and is transmitted to the color polarizer 13. move on. In the color polarizer 13, since green is not a complementary color to cyan, the green light is transmitted as it is, and the green light is observed below the glass substrate 3. On the right side, the display is black, similar to that shown in FIG. Here, if the color polarizer 9° 10.11 is made extremely fine, a yellow color can be observed below the glass substrate 3 due to additive color mixture.
第４図に、左側に赤色の表示、中央に緑の表示、右側に
青の表示をそれぞれ行なう例を示す。電圧無印加状態で
、中央偏光子３７の上方より光（矢印Ｌ）を入射する。FIG. 4 shows an example in which red is displayed on the left, green is displayed in the center, and blue is displayed on the right. Light (arrow L) is input from above the central polarizer 37 with no voltage applied.
左側及び中央は、第３図で示したと同様にそれぞれ赤色
及び緑色がガラス基板３の下方で観察される。右側では
、光はカラー偏光子１１において光の偏光方向とカラー
偏光子１１の吸収軸方向が同じであることより青色に着
色されカラー偏光子８へと進む。カラー偏光子８の吸収
軸方向と青色の光の偏光方向は異なるから青色の光はそ
のまま透過しセル５へと進み、液晶３６によって９０゛
だけねじられカラー偏光子１７に到達する。青色の光の
偏光方向とカラー偏光子１７の吸収軸方向とは異なって
いるため、青色の光はカラー偏光子１７で吸収されるこ
となくそのまま透過し、ガラス基板３の下方では青色が
［１される。ここで、カラー偏光子９．１０゜１１を極
めて細かくすると、加法混色によってガラス基板３の下
方では白色が観察できる。On the left side and in the center, red and green colors are observed under the glass substrate 3, respectively, as shown in FIG. On the right side, since the polarization direction of the light in the color polarizer 11 and the absorption axis direction of the color polarizer 11 are the same, the light is colored blue and proceeds to the color polarizer 8. Since the absorption axis direction of the color polarizer 8 and the polarization direction of the blue light are different, the blue light passes through the cell 5 as it is, is twisted by 90 degrees by the liquid crystal 36, and reaches the color polarizer 17. Since the polarization direction of the blue light is different from the absorption axis direction of the color polarizer 17, the blue light is transmitted as it is without being absorbed by the color polarizer 17, and below the glass substrate 3, the blue light is [1 be done. Here, if the color polarizer 9.10.degree. 11 is made very fine, white color can be observed below the glass substrate 3 due to additive color mixture.
上述した例の他に、透明電極２４と１８．１９゜２０、
及び２５と２１．２２．２３との間に電圧を印加あるい
は無印加して組み合わせることにより、フルカラー表示
が可能である。In addition to the above-mentioned example, transparent electrode 24 and 18.19° 20,
By applying or not applying a voltage between 25 and 21, 22, and 23 in combination, full color display is possible.
（ト）発明の効果
この発明は、消費電力が小さく且つ薄型であるという液
晶表示装置の特長を損うことなく、表示面積が大きく、
表示が明るく、更に表示コントラストが優れているカラ
ー液晶表示装置である。(G) Effects of the Invention This invention provides a large display area without sacrificing the characteristics of liquid crystal display devices such as low power consumption and thinness.
This is a color liquid crystal display device with a bright display and excellent display contrast.
第１図はこの発明の一実施例を示す構成説明図、第２〜
４図はこの実施例の動作を示す構成説明図、第５〜６図
は従来例の第１図相当図である。
Ｄ・・・・・・カラー液晶表示装置、
１．２．３・・・・・・ガラス基板、４，５・・・・・
・セル、６．７，８．９．１０．１１，１２，１３．１
４゜１５．１６．１７・・・・・・カラー偏光子、３６
・・・・・・液晶。
第１図 。
■
第２図
六〉ぐ〉FIG. 1 is a configuration explanatory diagram showing one embodiment of the present invention, and FIG.
FIG. 4 is a configuration explanatory diagram showing the operation of this embodiment, and FIGS. 5 and 6 are diagrams corresponding to FIG. 1 of the conventional example. D...Color liquid crystal display device, 1.2.3...Glass substrate, 4,5...
・Cell, 6.7, 8.9.10.11, 12, 13.1
4゜15.16.17・・・Color polarizer, 36
······liquid crystal. Figure 1. ■ Figure 2 6〉g〉
Claims (1)
に９０°回転させる積層関係に配置された第一及び第二
の液晶層をそれぞれ挾設する各基板の互いに対応する部
位に、吸収特性が互いに異なり且つ吸収軸方向が互いに
直交する少なくとも２個のカラー偏光子が積層関係で配
設され、光の入射側又は出射側には偏光方向が上記吸収
軸方向と平行又は直交状態にある中性偏光子が配設され
、上記カラー偏光子の互いに対応する上下層位置にある
ものは、吸収軸方向が略々同方向に設定されていること
を特徴とするカラー液晶表示装置。1. First and second liquid crystal layers arranged in a stacked relationship that selectively rotate the polarization direction of incident polarized light by 90 degrees in response to the application of a voltage are sandwiched in mutually corresponding parts of each substrate, At least two color polarizers having different absorption characteristics and whose absorption axes directions are perpendicular to each other are arranged in a stacked relationship, and the polarization direction is parallel or perpendicular to the absorption axis direction on the light incidence side or the light emission side. 1. A color liquid crystal display device, wherein a certain neutral polarizer is disposed, and the absorption axes of the color polarizers located at mutually corresponding upper and lower layer positions are set in substantially the same direction.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61292107A JPH083591B2 (en) | 1986-12-08 | 1986-12-08 | Color liquid crystal display |
| DE3789855T DE3789855T2 (en) | 1986-12-08 | 1987-12-08 | Color liquid crystal display device. |
| US07/130,110 US4877309A (en) | 1986-12-08 | 1987-12-08 | Color liquid crystal display unit |
| EP87310776A EP0271315B1 (en) | 1986-12-08 | 1987-12-08 | Color liquid crystal display unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61292107A JPH083591B2 (en) | 1986-12-08 | 1986-12-08 | Color liquid crystal display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63144326A true JPS63144326A (en) | 1988-06-16 |
| JPH083591B2 JPH083591B2 (en) | 1996-01-17 |
Family
ID=17777636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61292107A Expired - Lifetime JPH083591B2 (en) | 1986-12-08 | 1986-12-08 | Color liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH083591B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4966441A (en) * | 1989-03-28 | 1990-10-30 | In Focus Systems, Inc. | Hybrid color display system |
| US5050965A (en) * | 1989-09-01 | 1991-09-24 | In Focus Systems, Inc. | Color display using supertwisted nematic liquid crystal material |
| US5089810A (en) * | 1990-04-09 | 1992-02-18 | Computer Accessories Corporation | Stacked display panel construction and method of making same |
| FR2667972A1 (en) * | 1990-10-12 | 1992-04-17 | Thomson Csf | DEVICE FOR VISUALIZING COLOR IMAGES. |
| CN113448119A (en) * | 2021-07-13 | 2021-09-28 | 深圳市兔高科技有限公司 | Liquid crystal light adjusting film |
-
1986
- 1986-12-08 JP JP61292107A patent/JPH083591B2/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4966441A (en) * | 1989-03-28 | 1990-10-30 | In Focus Systems, Inc. | Hybrid color display system |
| US5050965A (en) * | 1989-09-01 | 1991-09-24 | In Focus Systems, Inc. | Color display using supertwisted nematic liquid crystal material |
| US5089810A (en) * | 1990-04-09 | 1992-02-18 | Computer Accessories Corporation | Stacked display panel construction and method of making same |
| FR2667972A1 (en) * | 1990-10-12 | 1992-04-17 | Thomson Csf | DEVICE FOR VISUALIZING COLOR IMAGES. |
| US5229874A (en) * | 1990-10-12 | 1993-07-20 | Thomson-Csf | Device for the display of color images |
| CN113448119A (en) * | 2021-07-13 | 2021-09-28 | 深圳市兔高科技有限公司 | Liquid crystal light adjusting film |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH083591B2 (en) | 1996-01-17 |
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| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |