JPS581777B2 - exiyoirohiyoujisouchi - Google Patents
exiyoirohiyoujisouchiInfo
- Publication number
- JPS581777B2 JPS581777B2 JP50121269A JP12126975A JPS581777B2 JP S581777 B2 JPS581777 B2 JP S581777B2 JP 50121269 A JP50121269 A JP 50121269A JP 12126975 A JP12126975 A JP 12126975A JP S581777 B2 JPS581777 B2 JP S581777B2
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- crystal cell
- electric field
- display device
- displayed
- 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
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
- G02F1/1347—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
- G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F1/13706—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering the liquid crystal having positive dielectric anisotropy
-
- 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
- G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F1/13712—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering the liquid crystal having negative dielectric anisotropy
-
- 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
- G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F1/13787—Hybrid-alignment cells
-
- 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
- G02F2203/00—Function characteristic
- G02F2203/01—Function characteristic transmissive
-
- 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
- G02F2203/00—Function characteristic
- G02F2203/02—Function characteristic reflective
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)
Description
【発明の詳細な説明】 本発明は液晶色表示装置に関する。[Detailed description of the invention] The present invention relates to a liquid crystal color display device.
電極が施された２枚の透明な基板のうち、一方を液晶分
子が垂直配向し、他方を液晶分子が水平配向するような
手段を施し、前記手段を施した基板間にネマチツク液晶
をはさみ、さらに前記液晶の光路に偏光板を設置するこ
とにより、多色カラー表示ができる。Of two transparent substrates provided with electrodes, one is provided with means such that liquid crystal molecules are vertically aligned, and the other is provided with means such that liquid crystal molecules are horizontally aligned, and a nematic liquid crystal is sandwiched between the substrates provided with the aforementioned means, Furthermore, by installing a polarizing plate in the optical path of the liquid crystal, multicolor display can be performed.
しかし、この方式では、液晶の配向と、複屈折率により
、色表示するが、電場無印加でも色相を呈し、電場無印
加で黒を表示することはできない。However, although this method displays colors based on the orientation of the liquid crystal and the birefringence, it exhibits hue even when no electric field is applied, and cannot display black without applying an electric field.
また、電場印加しても完全な黒を表示することは困難で
、特に誘電異方性が負のネマチツク液晶を用いた場合は
全く黒を表示できない。Furthermore, it is difficult to display complete black even when an electric field is applied, and in particular, when a nematic liquid crystal with negative dielectric anisotropy is used, no black can be displayed at all.
しかも、黒を表示できないばかりか、そのため、表示部
と非表示部との間の色相の輝度が充分にとれない場合が
ある。Moreover, not only cannot black be displayed, but also the luminance of the hue between the display area and the non-display area may not be sufficient.
本発明は上記点に鑑みなされたもので、鮮明な黒を表示
でき、しかも色相の輝度の高い表示ができ、さらに色相
表示が低電圧であり、色相制御が容易な液晶色表示装置
を提供することにある。The present invention has been made in view of the above points, and provides a liquid crystal color display device that can display clear black and high hue brightness, and furthermore, can display the hue at a low voltage and can easily control the hue. There is a particular thing.
すなわち、本発明は、水平配向処理された基板と、垂直
配向処理された基板間にネマテイツク液晶を設けた第１
の液晶セルと、該第１の液晶セルと同一光路に設けられ
た、電場無印加時に旋光性を有し電場印加時に前記旋光
性を解消する誘電異方性が正の第２の液晶セルと、該両
液晶セルの光路に配置された偏光子とからなる液晶色表
示装置に関するものである。That is, the present invention provides a first substrate in which a nematic liquid crystal is provided between a horizontally aligned substrate and a vertically aligned substrate.
and a second liquid crystal cell provided in the same optical path as the first liquid crystal cell and having positive dielectric anisotropy that has optical rotation when no electric field is applied and cancels the optical rotation when an electric field is applied. , and a polarizer disposed in the optical path of both liquid crystal cells.
以下に、本発明の一実施態様である第１図を用いて本発
明を更に詳細に説明する。The present invention will be explained in more detail below using FIG. 1, which is an embodiment of the present invention.
透明電極が一体的ないしは部分的に形成された透明基板
、例えば透明ガラス基板１，３に、液晶分子が一定方向
に水平配向するように水平配向処理、例えば、綿布、各
種研磨剤での基板の研磨、無機物の斜め蒸着などを施し
、水平配向処理方向がほぼ直交するように基板１，３を
処理面が対向するように配置して容器を形成し、この容
器内に誘電異方性が正の液晶２を注入する。A transparent substrate on which a transparent electrode is integrally or partially formed, for example, the transparent glass substrates 1 and 3, is subjected to a horizontal alignment treatment, for example, using cotton cloth or various abrasives, so that liquid crystal molecules are horizontally aligned in a certain direction. A container is formed by applying polishing, oblique vapor deposition of inorganic material, etc., and arranging the substrates 1 and 3 with their treated surfaces facing each other so that the horizontal alignment treatment directions are almost perpendicular. Inject liquid crystal 2.
さらに前記電極からリード端子を取り出し、スイッチ４
と電源５に接続する。Furthermore, take out the lead terminal from the electrode and switch 4.
and connect to power supply 5.
このようにすることにより、電場無印加で旋光性をもち
、電場印加時に旋光性が解消されるいわゆるＴＮ（ツイ
スト）液晶セルが構成される。By doing so, a so-called TN (twist) liquid crystal cell is constructed, which has optical rotation when no electric field is applied, and whose optical rotation is canceled when an electric field is applied.
また、液晶分子が水平配向するための処理を施した電極
を有する基板６と、液晶分子が垂直配向するための処理
例えば、基板の酸処理、各種界面活性剤による基板処理
等を施した電極を有する基板８を処理面が対向するよう
に配置し、液晶７をはさむ。In addition, a substrate 6 having an electrode that has been subjected to a treatment for horizontally aligning liquid crystal molecules, and an electrode that has been subjected to a treatment for vertically aligning the liquid crystal molecules, such as acid treatment of the substrate, substrate treatment with various surfactants, etc. The substrates 8 having the substrates 8 are arranged so that their processing surfaces face each other, and the liquid crystal 7 is sandwiched therebetween.
さらに、電極からリード端子をとり出し、スイッチ９、
電源１０に接続する。Furthermore, take out the lead terminal from the electrode, switch 9,
Connect to power supply 10.
このようにして、垂直水平配向の液晶セルを構成する。In this way, a liquid crystal cell with vertical and horizontal alignment is constructed.
上記、ＴＮ液晶セルと垂直水平配向の液晶セルを対向す
るように配置し、偏光子１１，１２，１３，を第１図の
ように設置する。The TN liquid crystal cell and the vertically horizontally oriented liquid crystal cell are arranged to face each other, and polarizers 11, 12, 13 are installed as shown in FIG.
このようにして設置した本発明による液晶表示装置にお
いて、入射光１４は偏光子１１を通過して偏光となり、
ＴＮ液晶セルの電場が印加された部分は、液晶分子が垂
直配向することにより、施光性がなく、電場が印加され
ない部分が施光性をもつため、偏光子１１ ．１２の偏
光軸方向を直交、もしくは平行に配置し、一方の偏光子
の偏光軸方向とＴＮ液晶セルの水平配向処理方向が一致
するように設置することにより、ＴＮ液晶セルと偏光子
１１、１２は光弁となる。In the liquid crystal display device according to the present invention installed in this way, the incident light 14 passes through the polarizer 11 and becomes polarized light,
The part of the TN liquid crystal cell to which an electric field is applied has no light-transmitting property due to vertical alignment of the liquid crystal molecules, and the part to which no electric field is applied has light-transmitting property, so the polarizer 11. By arranging the polarization axes of the polarizers 11 and 12 perpendicularly or in parallel, and installing the polarizer so that the polarization axis direction of one polarizer matches the horizontal alignment direction of the TN liquid crystal cell, the TN liquid crystal cell and the polarizers 11 and 12 becomes a light bulb.
このとき、偏光子１１．１２が直交の場合、入射光１４
は電場無印加の部分は透過し、電場印加部分は透過しな
い。At this time, if the polarizers 11 and 12 are orthogonal, the incident light 14
The area where no electric field is applied is transmitted, and the area where an electric field is applied is not transmitted.
逆に偏光子１１．１２が平行の場合は電場無印加部分は
入射光１４が透過せず、電場印加部分が通過する。Conversely, when the polarizers 11 and 12 are parallel, the incident light 14 does not pass through the portions where no electric field is applied, but passes through the portions where the electric field is applied.
さらに、偏光子１１，１２とＴＮ液晶セルにより選択的
に透過された偏光が垂直水平液晶セルにより楕円偏光を
形成し、さらに偏光子１２により選択的に透過し、透過
光１５は干渉現象により色相を呈す。Further, the polarized light selectively transmitted by the polarizers 11 and 12 and the TN liquid crystal cell forms elliptically polarized light by the vertical and horizontal liquid crystal cells, and is further selectively transmitted by the polarizer 12, and the transmitted light 15 has a hue due to an interference phenomenon. exhibits.
したがって、本発明にかかる液晶表示装置は黒を背景に
、各色を表示したり、また、ある色を背景に黒色を表示
したりすることがき、従来にないすぐれた表示特性を示
す。Therefore, the liquid crystal display device according to the present invention can display each color against a black background, or display black against a certain color background, and exhibits excellent display characteristics never seen before.
しかも、各色相表示が低電圧で動作でき、各色が明るく
鮮明に表示でき、色相の電圧による制御が容易であるこ
とを特徴とする液晶色表示装置である。Moreover, the liquid crystal color display device is characterized in that each hue can be displayed at a low voltage, each color can be displayed brightly and clearly, and the hue can be easily controlled by voltage.
本発明にかかる液晶表示装置を入射光側にＴＮ液晶セル
を配置したものについて第１図を用いて説明したが、入
射光側に垂直水平液晶セルを配置しても要するに同一光
路にあればよい。Although the liquid crystal display device according to the present invention in which the TN liquid crystal cell is arranged on the incident light side has been described using FIG. 1, vertical and horizontal liquid crystal cells may be arranged on the incident light side as long as they are on the same optical path. .
また、垂直水平液晶セルの場合、入射光側基板面を垂直
配向処理、透過光側基板面を水平配向処理してもかまわ
ない。Further, in the case of a vertical horizontal liquid crystal cell, the substrate surface on the incident light side may be subjected to vertical alignment treatment, and the substrate surface on the transmitted light side may be subjected to horizontal alignment treatment.
さらに本発明にかかる液晶色表示装置を第１図により、
透過型の場合について説明したが、第１図の構成におい
て透過光側に光拡散板や、光反射板、を設置した、もし
くは、透過光側の基板が電極を有する反射板であるよう
な反射型の表示装置であっても透過型の表示装置と同様
の優れた性能を示す。Furthermore, the liquid crystal color display device according to the present invention is shown in FIG.
Although we have explained the case of a transmission type, in the configuration shown in Fig. 1, a light diffusion plate or a light reflection plate is installed on the transmitted light side, or a reflection type in which the substrate on the transmitted light side is a reflection plate with electrodes. Even a transmissive type display device exhibits excellent performance similar to a transmissive type display device.
本発明にかかる液晶色表示装置に用いられる液晶は、Ｔ
Ｎ液晶セルについては誘電異方性が正の液晶ならなんで
もよく、また垂直水平液晶セルは誘電異方性が正、負に
かかわらず、ネマチツク液晶であればよい。The liquid crystal used in the liquid crystal color display device according to the present invention is T
For the N liquid crystal cell, any liquid crystal with positive dielectric anisotropy may be used, and for the vertical and horizontal liquid crystal cells, any liquid crystal may be used as long as the dielectric anisotropy is positive or negative, as long as it is a nematic liquid crystal.
以下、本発明の有用性をより明らかにするために、実施
例をあげて説明する。EXAMPLES Hereinafter, in order to clarify the usefulness of the present invention, examples will be given and explained.
２枚の透明電極がコーテングされた２枚のガラス基板の
うち、一方の基板の電極を有する面を一定方向に綿布で
研磨することにより水平配向処理をし、もう一枚の基板
の電極を有する面を有機シラン塗布により垂直配向処理
をし、この２枚の基板を処理面が対向するように配置し
、４′−メトキシベンジリデン−４−ｎ−ブチルアニリ
ン（ＭＢＢＡ）と、４′−ｎ−ブトキシベンジリデン−
４・シアノアニリン（ ＢＢＣＡ ）の２種のネマチツ
ク液晶の混合物を注入し、垂直水平液晶セルとした。Of the two glass substrates coated with two transparent electrodes, the surface of one substrate with the electrodes is polished in a certain direction with a cotton cloth for horizontal alignment treatment, and the surface of the other substrate with the electrodes is polished. The surfaces were vertically aligned by coating with organic silane, the two substrates were placed so that the treated surfaces faced each other, and 4'-methoxybenzylidene-4-n-butylaniline (MBBA) and 4'-n- Butoxybenzylidene
A mixture of two types of nematic liquid crystals, 4.cyanoaniline (BBCA), was injected to form a vertical and horizontal liquid crystal cell.
このとき、電極間距離はスペーサーを用いて８μｍとし
、混合液晶の混合比はＮＢＢｇ−ｂとＢＢＣＡＩ部と晴
。At this time, the distance between the electrodes was set to 8 μm using a spacer, and the mixing ratio of the mixed liquid crystal was NBBg-b and BBCAI.
さらに、２枚の透明電極がコーテングされた２枚のガラ
ス基板の電極が有する面を一定方向に綿布で研磨するこ
とにより水平配向処理をし、その配向処理方向がほぼ直
交するように、処理面を対向させて配置し、さらに上記
混合液晶を注入してＴＮ液晶セルとした。Furthermore, the surfaces of the electrodes of the two glass substrates coated with the two transparent electrodes are horizontally aligned by polishing them in a certain direction with a cotton cloth, and the treated surfaces are were placed facing each other, and the above mixed liquid crystal was further injected to form a TN liquid crystal cell.
このＴＮ液晶セルの電極間距離はスベーサを用いて１０
μｍとした。The distance between the electrodes of this TN liquid crystal cell is 10 by using a spacer.
It was set as μm.
これらの垂直水平液晶セルとＴＮ液晶セルを対向するよ
うに配置し、それぞれの液晶セルの光路に偏光板を設置
した。These vertical and horizontal liquid crystal cells and TN liquid crystal cells were arranged to face each other, and a polarizing plate was installed in the optical path of each liquid crystal cell.
このとき、ＴＮ液晶セルの光路には、２枚の偏光板の偏
光軸方向が平行になるようにしかもその偏光軸方向と、
ＴＮ液晶セルの一方の基板研磨方向とが一致するように
、また、垂直水平液晶セルの光路には２枚の偏光板の偏
光軸方向が直交するように、しかもその一方の偏光軸方
向と垂直水平液晶セルの研磨方向とが４５゜方向をとる
ように、ＴＮ液晶セル、垂直水平液晶セル、そして偏光
板をそれぞれ設置した。At this time, the optical path of the TN liquid crystal cell is such that the polarization axes of the two polarizing plates are parallel to each other, and
The polishing direction of one of the substrates of the TN liquid crystal cell should match the direction of polishing, and the direction of the polarization axes of the two polarizing plates should be perpendicular to the optical path of the vertical and horizontal liquid crystal cell, and perpendicular to the direction of one of the polarization axes. A TN liquid crystal cell, a vertical horizontal liquid crystal cell, and a polarizing plate were each installed so that the polishing direction of the horizontal liquid crystal cell was oriented at 45°.
さらにＴＮ液晶セルには例として“”Ａ”の文字が表示
できるように透明電極を構成した。Furthermore, a transparent electrode was configured in the TN liquid crystal cell so that the letter "A" could be displayed, for example.
本実施例において、ＴＮ液晶セル、垂直水平液晶セル共
に電圧無印加の状態で黒を表示した。In this example, both the TN liquid crystal cell and the vertical and horizontal liquid crystal cells displayed black when no voltage was applied.
さらにＴＮ液晶セルに１． ５ Ｖ （ｒｍｓ）印加す
ると黄緑を呈す“Ａ”を表示した。Furthermore, 1. When 5 V (rms) was applied, a yellow-green "A" was displayed.
“Ａ”以外は黒を表示している。All characters other than "A" are displayed in black.
さらに、垂直水平液晶セルに０．６ＶＣ ｒｍｓ ）印
加すると緑、０．９Ｖ（ｒｍｓ）を印加すると青、１．
２Ｖ（ｒｍｓ）を印加すると赤、そして１．７■印加す
ると黄の“Ａ”文字を表示した。Further, when 0.6 V (rms) is applied to the vertical and horizontal liquid crystal cells, it becomes green, when 0.9 V (rms) is applied, it becomes blue, and when 1.
When 2V (rms) was applied, a red "A" character was displayed, and when 1.7V was applied, a yellow "A" character was displayed.
このとき、“Ａ”文字以外は黒を示した。At this time, characters other than the letter "A" were shown in black.
これにより明らかなように、この実施例では黒を背景に
鮮明な緑、青、赤、黄等の各色を表示し従来の垂直水平
液晶セルぞけのものに比較し、背景が黒を示すため、著
しく各色の輝度が向モした。As is clear from this, in this example, clear colors such as green, blue, red, and yellow are displayed against a black background. , the brightness of each color was significantly improved.
さらに、各色を低電圧で表示でき、しかも各色の色相制
御が容易であり、本発明にかかる液晶色表示装置は従来
にない優れた性能を示した。Furthermore, each color can be displayed at a low voltage, and the hue of each color can be easily controlled, and the liquid crystal color display device according to the present invention has exhibited excellent performance not seen before.
以上のように、本発明によれば、垂直水平液晶セルとＴ
Ｎ液晶セルと偏光子を組み合わせることにより、明るく
鮮明な赤、黄、緑、青、黒を表示でき、その輝度も高く
、しかも、各色を低電圧で表示でき、色相制御が容易な
実用的価値の高い液晶色表示装置を得ることができる。As described above, according to the present invention, vertical and horizontal liquid crystal cells and T
By combining an N liquid crystal cell and a polarizer, it is possible to display bright and clear red, yellow, green, blue, and black, and the brightness is high.In addition, each color can be displayed with low voltage, and hue control is easy, which is a practical value. It is possible to obtain a liquid crystal color display device with high color.
第１図は本発明の一実施例説明図である。
１，３，６，８……ガラス基板、２，７……液晶、１１
，１２．１３……偏光子。FIG. 1 is an explanatory diagram of an embodiment of the present invention. 1, 3, 6, 8...Glass substrate, 2,7...Liquid crystal, 11
, 12.13...Polarizer.
Claims (1)
間にネマテイツク液晶を設けた第１の液晶セルと、該第
１の液晶セルと同一光路に設けられた電場無印加時に旋
光性を有し、電場印加時に前記旋光性を解消する誘電異
方性が正の第２の液晶セルと、前記第１及び第２の液晶
セルの光路に設けられた偏光子とを具備してなることを
特徴とする液晶色表示装置。1. A first liquid crystal cell in which a nematic liquid crystal is provided between a horizontally aligned substrate and a vertically aligned substrate, and a cell that has optical rotation when no electric field is applied and is provided in the same optical path as the first liquid crystal cell. , comprising a second liquid crystal cell with positive dielectric anisotropy that eliminates the optical rotation when an electric field is applied, and a polarizer provided in the optical path of the first and second liquid crystal cells. LCD color display device.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50121269A JPS581777B2 (en) | 1975-10-09 | 1975-10-09 | exiyoirohiyoujisouchi |
| US05/678,553 US4097128A (en) | 1975-04-24 | 1976-04-20 | Liquid crystal color display devices |
| DE2617924A DE2617924B2 (en) | 1975-04-24 | 1976-04-23 | Liquid crystal display device for color display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50121269A JPS581777B2 (en) | 1975-10-09 | 1975-10-09 | exiyoirohiyoujisouchi |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5245894A JPS5245894A (en) | 1977-04-11 |
| JPS581777B2 true JPS581777B2 (en) | 1983-01-12 |
Family
ID=14807061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50121269A Expired JPS581777B2 (en) | 1975-04-24 | 1975-10-09 | exiyoirohiyoujisouchi |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS581777B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59187318A (en) * | 1983-04-07 | 1984-10-24 | Fujitsu Ltd | Liquid-crystal display device |
| US4581608A (en) * | 1983-06-13 | 1986-04-08 | General Electric Company | Multi-color liquid crystal display and system |
| US4613207A (en) * | 1984-05-08 | 1986-09-23 | Manchester R & D Partnership | Liquid crystal projector and method |
| US5168380A (en) * | 1985-03-01 | 1992-12-01 | Manchester R & D Partnership An Ohio Limited Partnership | Multiple containment mediums of operationally nematic liquid crystal responsive to a prescribed input |
| US4953953A (en) * | 1985-03-01 | 1990-09-04 | Manchester R & D Partnership | Complementary color liquid display |
| JP4607630B2 (en) * | 2005-03-16 | 2011-01-05 | 株式会社光波 | Vending machine display |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49104657A (en) * | 1973-02-05 | 1974-10-03 | ||
| JPS49115564A (en) * | 1973-03-07 | 1974-11-05 | ||
| JPS50110296A (en) * | 1974-02-04 | 1975-08-30 | ||
| JPS50120598A (en) * | 1974-03-06 | 1975-09-20 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5719739Y2 (en) * | 1972-10-28 | 1982-04-26 |
-
1975
- 1975-10-09 JP JP50121269A patent/JPS581777B2/en not_active Expired
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49104657A (en) * | 1973-02-05 | 1974-10-03 | ||
| JPS49115564A (en) * | 1973-03-07 | 1974-11-05 | ||
| JPS50110296A (en) * | 1974-02-04 | 1975-08-30 | ||
| JPS50120598A (en) * | 1974-03-06 | 1975-09-20 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5245894A (en) | 1977-04-11 |
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