JPS58209716A - Liquid-crystal display device - Google Patents
Liquid-crystal display deviceInfo
- Publication number
- JPS58209716A JPS58209716A JP57094245A JP9424582A JPS58209716A JP S58209716 A JPS58209716 A JP S58209716A JP 57094245 A JP57094245 A JP 57094245A JP 9424582 A JP9424582 A JP 9424582A JP S58209716 A JPS58209716 A JP S58209716A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- polarizing plate
- pattern
- light
- color
- 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
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
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Liquid Crystal (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は文字２図形などのパターンを形成した透明電
極を設けだ液晶セルに、この透明電極を介して電気信号
を印加し、液晶セルの光学特性を変化させて、パターン
を表がすると共に１そのパターンの表示色を電子回路的
に切換えることができる液晶表示装置に関するものであ
る。[Detailed Description of the Invention] This invention applies an electric signal to a liquid crystal cell provided with a transparent electrode formed with a pattern such as two characters and figures through this transparent electrode to change the optical characteristics of the liquid crystal cell. The present invention relates to a liquid crystal display device that can display a pattern and also switch the display color of the pattern using an electronic circuit.
第１図は従来の液晶表示装置を示す断面側面図である。FIG. 1 is a cross-sectional side view showing a conventional liquid crystal display device.
同図において、（１）はツィステッド・ネマチック形液
晶（以下液晶と言う）、（２）および（３１はそれぞれ
この液晶（１）に電圧を印加する表側の透明電極および
ａｎの透明電極、（４１Ｖｉ表側に設けた表側偏光板、
（５）は裏側に設けた裏側偏）で二板、 （Ｌｉｔは前
記液晶（１）に印加する交番′電圧を発生する駆、？！
ｈド１１路、（７）はこの交番電圧の透明電極（２）お
よび（３）への印加をオンあるいはオフするスイッチ回
路、（８）お上ひ（９）はそれぞれ独立に点灯する照明
用ランプ、０１１１および０υはそれぞれ照明用ランプ
（８）および（り）に装部し、それぞれ異なった色をも
つカラーフィルタ、０シは照明用ランプ（８）および（
９）の光を尋びき、成品＋Ｉｌを背面から照明するライ
トガイド、（１３は照明用′市、源、０４１Ｆｉ照明用
ランプ（８）あるいハ（９）に切換えるランプスイッチ
回路である。In the figure, (1) is a twisted nematic liquid crystal (hereinafter referred to as liquid crystal), (2) and (31 are a front transparent electrode and an an transparent electrode that apply voltage to this liquid crystal (1), respectively, (41Vi Front polarizing plate provided on the front side,
(5) is a back side panel installed on the back side) with two plates, (Lit is a drive that generates an alternating voltage to be applied to the liquid crystal (1).
(7) is a switch circuit that turns on or off the application of this alternating voltage to the transparent electrodes (2) and (3), (8) and (9) is a lighting circuit that turns on each independently. Lamps 0111 and 0υ are mounted on the illumination lamps (8) and (ri), respectively, and color filters with different colors, respectively, are mounted on the illumination lamps (8) and (ri).
9) is a light guide that illuminates the product +Il from the back side; (13 is a lamp switch circuit that switches between the 041Fi illumination lamp (8) and the 041Fi illumination lamp (9);
次に、上記構成による液晶表示装置の動作について説明
する。まず、液晶（１１は電圧が印加しない状態では入
射する光の偏光方向を９０°回転させ、成るしきい値を
越えた電圧が印加すると、入射光の偏光方向を保存した
まま透過させる性質を有する。したがって、表面偏光板
（５１で入射光のｍ個光方向を選択して、液晶（１１に
入射させ、液晶（１）を透過した光をさらに偏光板（４
）を通して見ると、液晶（１）Ｋ印加される電圧の有無
によって、透過光１が変化する。したがって、表側の透
明電極（２）およびＩＩｋ側の透明電極（３）の少なく
とも一方を文字２図形などのパターンに形成し、これに
印加する電圧をスイッチ回路（７）で切換え、液晶（１
）に選択的に電圧を印加してパターンを表示する。今、
例えば、液１１！ｌ衣ろく素子が電流値、水位、速度な
どの値を０字、バーグラフなどの形で指示しており、指
示値が成る設定値以内であｔば照明用ランプ（８）が点
灯し、設足稙を越えると照明用ランプ（５つ）に切換え
るように制御するなら、観察者は数字を読まなくても背
景色が変わったことによって、設定値を越えたこと？認
識−することができる。このように、表示の背景色を適
宜切換えることによって、表示される内在のｇＡ［を高
め、早く確実に観察者に情報を伝達することができる。Next, the operation of the liquid crystal display device with the above configuration will be explained. First, the liquid crystal (11) has the property of rotating the polarization direction of incident light by 90 degrees when no voltage is applied, and transmitting the incident light while preserving the polarization direction when a voltage exceeding a threshold is applied. Therefore, m light directions of the incident light are selected by the surface polarizing plate (51) and made incident on the liquid crystal (11), and the light transmitted through the liquid crystal (1) is further passed through the polarizing plate (4).
), the transmitted light 1 changes depending on the presence or absence of a voltage applied to the liquid crystal (1)K. Therefore, at least one of the transparent electrode (2) on the front side and the transparent electrode (3) on the IIk side is formed into a pattern such as a character 2 figure, and the voltage applied thereto is switched by a switch circuit (7).
) to display a pattern. now,
For example, liquid 11! The lighting element indicates values such as current value, water level, speed, etc. in the form of zero characters, bar graphs, etc., and if the indicated value is within the set value, the lighting lamp (8) lights up. If the control is to switch to the illumination lamps (5 lights) when the footfall is exceeded, will the observer be able to see that the set value has been exceeded because the background color has changed without having to read the numbers? can be recognized. In this way, by appropriately switching the background color of the display, it is possible to increase the intrinsic gA[ displayed and to quickly and reliably transmit information to the viewer.
しかしながら、従来の液晶表示装置では色の変化を背景
光の色の切換えに頼っているため、強い外光下では背景
光が外光に負けて色の変化が視認できないほか、照明用
ランプが色を替えない場合より多く必要であり、さらに
は背景照明を用いない反射形液晶表示装置には本質的に
実施できないなどの欠点があった。However, in conventional LCD devices, color changes depend on switching the color of the background light, so under strong external light, the background light is overwhelmed by the external light and color changes cannot be seen, and the lighting lamps are Further, there are drawbacks such as the fact that a reflective liquid crystal display device that does not use background illumination cannot be implemented.
したがって、この発明の目的は背景照明光の切換えに頼
らずに表示色を切換えることができる成品表示装置を提
供するものである。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a product display device that can switch display colors without relying on switching background illumination light.
このような目的を達成するため、この発明はｌＩ＋１記
文字９図形などのパターンを形成した一対の第１の透明
電極を設けた第１のツイスデツドネマｔツク形成品表示
素子と、その前面および背■に配置した第１の偏光板お
よび第２の偏光板とｓ Ｍ−１１記文字９図形などのパ
ターンをきむ領域全体に形成した一対の第２の透明電極
を設け、前ｇｒ２第２（１）ＬＩＩＬ１光板の背面に配
置した第２のツイステツド不マナツク形液晶表示素子と
、この第２のツィステッドネマチック形液晶表不素子の
背向に設け、偏光方向によって異なる着色性を呈する２
色体吸収体とを備え、前記第２の透明電極に印加する１
比をオン・オフ制御して、パターンの表示色を切換える
ものであり、以下実施例を用いて旺細に説明する。In order to achieve such an object, the present invention provides a first twisted nematic display element having a pair of first transparent electrodes formed with a pattern such as 1I+1 letters, 9 figures, etc. A first polarizing plate and a second polarizing plate arranged in LIIL1 A second twisted non-manac type liquid crystal display element disposed on the back side of the light plate, and a second twisted nematic type liquid crystal display element disposed on the back side of the second twisted nematic type liquid crystal display element, which exhibits different coloring properties depending on the polarization direction.
a color body absorber, and 1 applied to the second transparent electrode.
The display color of the pattern is switched by controlling the ratio on and off, and will be explained in detail below using an example.
第２図を１この発明に係る液晶表示装置の一実施例を示
す分解斜視図である。同図において、０９は裏−偏光板
（５１の背面に設けた第２の液晶、Ｈおよび（１７１は
それぞれこの第２の液晶０９に電圧を印加する表−の透
明電極および実測の透明電極、（１８は第２の液晶Ｏｊ
に印加する交番電圧を発生する駆動回路、ｌＪ■まこの
交番電圧の透明Ｔｈ’極００およびＯｎへの印加をオン
あるいｒＪオフする色換えスイッチ回路、しＩＪｔｉｙ
方向に偏光軸をもつ赤色カラー偏光板、（２１１はＸ方
向に偏光４１１含・もつ緑色カラー偏光板である。FIG. 2 is an exploded perspective view showing an embodiment of a liquid crystal display device according to the present invention. In the figure, 09 is a back polarizing plate (a second liquid crystal provided on the back side of 51, H and (171 is a transparent electrode on the front side that applies a voltage to this second liquid crystal 09, respectively, and an actual transparent electrode, (18 is the second liquid crystal Oj
A drive circuit that generates an alternating voltage to be applied to lJ ■ A color change switch circuit that turns on or turns off the application of the alternating voltage to transparent Th' poles 00 and On, and IJtiy
A red color polarizing plate having a polarization axis in the X direction (211 is a green color polarizing plate having a polarization axis 411 in the X direction).
なお、Ｃ２１Ｊはこの赤色カラー偏光板（イ）と緑色カ
ラー偏光板Ｑυを合わせて構成した２色体吸収体である
。Ｊた、照明光は図中左側から入射し、図中右側から表
示を見るものとする。Note that C21J is a dichroic absorber constructed by combining this red color polarizing plate (a) and the green color polarizing plate Qυ. It is assumed that the illumination light enters from the left side of the figure and the display is viewed from the right side of the figure.
次に、上記構成による液晶表示装置の動作について説明
する。まず、入射した照明光が赤色カラー偏光板（至）
を通過すると、Ｘ方向の偏光成分は赤色の補色が吸収さ
れ、Ｘ方向の偏光成分はほとんど吸収されず透過する。Next, the operation of the liquid crystal display device with the above configuration will be explained. First, the incident illumination light is directed to a red color polarizing plate (towards).
When passing through, the complementary color of red is absorbed in the polarized light component in the X direction, and the polarized light component in the X direction is hardly absorbed and is transmitted.
これがさらに緑色カラー偏光根囲を通過すると、Ｘ方向
の偏光成分はほとんど吸収されず透過し、Ｘ方向の偏光
成分は緑色の補色が吸収される。その結果、２枚のカラ
ー偏光板を透過した光けＸ方向の偏光成分が緑色のスペ
クトルを持ち、Ｘ方向の偏光成分が赤色のスペクトルを
持つようになる。そして、この光が第２の液晶０！ｌｊ
を通過し、さら＆（Ｘ方向に偏光軸を持つ偏光板（５１
を通過すると、第２の成品（Ｉ餡’ｒ＆、Ｊさむ表側の
透明電極（１（珍と表側の透明電極Ｑ７１に電圧を印）
ＪＩｌしない場合には第２の液晶ｕ９が偏光方向を９０
゜回転させるので、偏光板（５１の透過光は赤色のスペ
クトルを持った光となる。逆に１圧を印加すると、第２
の液晶０９否−光が透過する間偏光方向が保存されるの
で、偏光板（５）ｆ透過した光は緑色のスペクトルを持
つ。しかも、いずｔｌの場合も、光の偏光方向Ｖｉｘ方
向ＶＣなっている。そして、第１０）Ｍ晶ｆ１１では、
その偏光板（７１順ｉｘ方向の偏光−１を持つので、こ
の第１の液晶（１）を通過した光１表側の透明電極（２
）と裏側の透明電極（３１に電圧を印加しない場合に＃
−ｉ偏光板（４）で阻止さ汎、電圧を印加すると、偏光
板（４）を通過して観察者の目に入る。このように、第
１の液晶（１）の表側の透明電極（２（あるいｉｉｍ側
の透明電極（３）の少なくとも一方に、文字２図形など
のパターンを形成し、第ｚｅ）液晶０９の表側の透明電
ｍａｔａおよび裏側の透明電極０７）は文字２図形など
のパターンを含む領域全体に形成しておくと、スイッチ
０１１路（７）の切換えＫよってパターンの点灯あるい
ｔま非点灯を１ｌｉｌｌ １１Ｉ４１（、つつ、色換え
スイッチ回路ｕｌによってパターンの表示色を切換える
ことができる。When this light further passes through the green color polarization root, the polarized light component in the X direction is hardly absorbed and is transmitted, and the complementary color of green is absorbed in the polarized light component in the X direction. As a result, the polarized light component in the X direction of the light transmitted through the two color polarizing plates has a green spectrum, and the polarized light component in the X direction has a red spectrum. And this light is the second liquid crystal 0! lj
, and a polarizing plate (51) with a polarization axis in the X direction.
When passing through, the second product (I bean'r&, the transparent electrode on the front side of J (1) (apply voltage to the transparent electrode Q71 on the front side)
If not, the second liquid crystal u9 changes the polarization direction to 90
Since it is rotated by 50 degrees, the light transmitted through the polarizing plate (51) becomes light with a red spectrum.On the other hand, when one pressure is applied, the second
Since the polarization direction is preserved while the light is transmitted through the liquid crystal (5), the light transmitted through the polarizing plate (5) has a green spectrum. Moreover, in any case of tl, the polarization direction of the light is the Vix direction VC. And in the 10th) M crystal f11,
Since the polarizing plate (71) has -1 polarization in the forward ix direction, the light 1 that has passed through this first liquid crystal (1) has a transparent electrode (2
) and the transparent electrode on the back side (# when no voltage is applied to 31)
-i When a voltage is applied, the light passes through the polarizing plate (4) and enters the observer's eyes. In this way, a pattern such as a character 2 figure is formed on at least one of the transparent electrodes (2) on the front side of the first liquid crystal (1) (or the transparent electrodes (3) on the IIM side, and If the transparent electrode 07) on the front side and the transparent electrode 07) on the back side are formed over the entire area including the pattern such as characters 2 figures, the pattern can be turned on or off by switching the switch 011 path (7). 1lill 11I41 (,However, the display color of the pattern can be switched by the color change switch circuit ul.
第３図＆、」この発明に係る該＾ｂ衣衣装装置他の実施
例をかす圓ＩＪ図であり、特に、反射形液晶表示装置に
実施した場合を示す。同図において、２３１は駆動回路
、（２４ｔｉ背面に設けた半透過性光反射シートである
。FIG. 3 is an IJ diagram illustrating another embodiment of the clothing device according to the present invention, particularly showing the case where it is applied to a reflective liquid crystal display device. In the figure, 231 is a drive circuit and a semi-transparent light reflecting sheet (24ti) provided on the back side.
この実施例では背面からの照明光は半透過性光反射ジ−
トリルを通過したのち、第２図と同様の動作によし色換
えを行なうことができる。また、パネル前面から入射す
る外光についても、半透過性光反射シート３４まで達し
たのち、この半透過性光反射シート２４）で反射され、
第２図と同様の動作により色換えを行なうことができる
。In this embodiment, the illumination light from the back side is
After passing through the trill, the color can be changed by the same operation as in FIG. Also, external light incident from the front of the panel reaches the semi-transparent light reflecting sheet 34, and then is reflected by the semi-transparent light reflecting sheet 24).
Color change can be performed by the same operation as in FIG.
なお、以上の実施例では２色体吸収体＋２−として、色
の異なるカラー偏光板２枚を、その偏光軸を直交させて
重ねて実現したが、偏光特性を持たないカラーフィルタ
と、それとは異なる色のカラー偏光板を重ねてもよいし
、また吸収軸と色の異なる２棟類以上の色素層を一枚の
シートに形成（７てもよいことはもちろんである。さら
に、そのような色素をゲストとして持つゲストホスト形
液晶などでもよいことはもちろんである。また、以上の
実施例でＦｉ第１の液、１′！、 （ＩＩに鴇―圧を印
加しないとき、透過光が阻止されるノーマリクローズ形
を説明【７たが、偏光板（４）の偏光軸を９０°回転さ
せて配置したノーマリオープン形の液晶表示装置ぽにつ
いても同様に色換えができることはもちろんで−ある。In the above example, the dichroic absorber +2- was realized by stacking two color polarizing plates of different colors with their polarization axes orthogonal to each other. It is of course possible to stack color polarizing plates of different colors, or to form two or more dye layers with different absorption axes and colors on one sheet (7). Of course, a guest-host type liquid crystal having a dye as a guest may also be used.Also, in the above embodiment, when no pressure is applied to Fi first liquid, 1'!, (II), transmitted light is blocked. Explaining the normally closed type [7] However, it is of course possible to change the color of a normally open type liquid crystal display device in which the polarizing axis of the polarizing plate (4) is rotated by 90 degrees. be.
さらに、表ボされるパターン全体を色換えするのでＶｌ
なく、その一部だけを色換えしてもよいことはもちろん
である。Furthermore, since the entire pattern to be embossed is changed in color, Vl
Of course, it is also possible to change only a part of the color.
以上詳細に説明した−ように、この発明に係るＨｖ品表
示装置によれば文字１図形などのパターンの表示色を、
背景照明光の切換えによらず、電子回路によって切換え
ることができる効果がある。As explained in detail above, according to the Hv product display device according to the present invention, the display color of a pattern such as a character 1 figure can be
This has the effect of being able to be switched by an electronic circuit without depending on switching the background illumination light.
第１図は従来の液晶表示装置を示す概略構成図、第２図
はこの発明に係る液晶表示装置の一実施例を・示す分解
斜視図、絹３図はこの発明に係る液晶表７１＜装置の他
の実施例を示す側面図である。
ｉｌｌ・・・・ライスデッドネマチック形液晶、（２）
・・・・表側の透明’＋ｈ極、（出・・・・裏側の透明
電極、（・１）・・・・表側偏光板１、（！１ｊ・・・
・・表側偏光板ｓ （ｔｉｔ・参〇・駆動回路、（７）
−・・・スイッチ回路、（８）および（！１１・・・・
照明用ランプ、０〔凌および０υ・・・Φカラーフィル
タ、０邊・・・−ライトガイド、（１３１・・・・照明
用電源、（１４１・・拳・ランプスイッチ回路、Ｏｊ・
・−・第２のツィステッドネマチック形液晶、＋１６１
・・・・表側の透明電極、０７）・・・・裏側の透明電
極、０８・・・・駆動回路、０９・・・・色換えスイッ
チ回路、イ舅・・・・赤色カラー偏光板、０１）・・・
・緑色カラー偏光板、（２渇・争・・２色体吸収体、（
２濁・・・・駆動回路、２４１・・・・半透過性光反射
シート。
なお、図中、同一符号は同一または相当部分を−示す。
代理人 ＆ 野 信 −
第１図
第２図
第３図Fig. 1 is a schematic configuration diagram showing a conventional liquid crystal display device, Fig. 2 is an exploded perspective view showing an embodiment of the liquid crystal display device according to the present invention, and Fig. 3 is a liquid crystal display device according to the present invention. FIG. 3 is a side view showing another embodiment of the invention. ill... Rice dead nematic liquid crystal, (2)
...transparent '+h pole on the front side, (out...transparent electrode on the back side, (・1)...front polarizing plate 1, (!1j...
・・Top side polarizing plate s (tit・See〇・Drive circuit, (7)
-... switch circuit, (8) and (!11...
Lighting lamp, 0〔 and 0υ...Φ color filter, 0be... - light guide, (131... lighting power supply, (141... fist/lamp switch circuit, Oj...
・-・Second twisted nematic liquid crystal, +161
... Transparent electrode on the front side, 07) ... Transparent electrode on the back side, 08 ... Drive circuit, 09 ... Color change switch circuit, Ino ... Red color polarizing plate, 01 )...
・Green color polarizing plate, (2-color polarizing plate, dichroic absorber, (
2 turbidity...drive circuit, 241...semi-transparent light reflective sheet. In addition, in the figures, the same reference numerals indicate the same or corresponding parts. Agent & Nobu Nobu - Figure 1 Figure 2 Figure 3
Claims (1)
１の透明電極を設けた第１のツィステッドネマチック形
液晶表示素子と、その前聞および背面ｉ＋（配置した！
！、１の偏光板および第２の偏光板と、１１記文字９図
形などのパターンを含む饋域全体に形成した一対の第２
の透明電極を設け、前記第２（ｈ偏光板の背向に配置し
た第２のツィステッドネマチック形液晶表示素子と、こ
の第２のライスデッドネマチック形液晶表示素子の背面
に設け、偏光方向によって異なる着色性を呈する２色体
吸収体とを備え、前記第２の透明電極に印加する電圧を
オン・オフ制御して、パターンの表示色を切換えること
を％徴とする液晶表示装＃。 （２）前記２色性吸収体はｌ偏光方向のみについて着色
性を有する第１のカラー偏光板と、この第１のカラー偏
光孜とは異なる着色性を有する第２のカラー偏光板とを
両者の偏光軸を直ズさセで重ね合わせて構成したことを
特徴とする特許請求の範囲第１項記載の液晶表示装置。 （３）前記２色性吸収体／ｒｉ１偏光方向のみについて
着色性を南するカラー偏光板と、このカラー偏光板と異
なる着色性を有するカラーフィルタとを重ね合わせて構
成したことを特徴とする特許請求の範囲第１項記載の液
晶表示＃Ｃ前。[Claims] (A pair υ formed with a pattern such as 11 characters and 1 figure) A first twisted nematic liquid crystal display element provided with a first transparent electrode, and its front and rear surfaces i+ (arranged!
! , a pair of second polarizing plates formed over the entire area including a pattern such as the first polarizing plate and the second polarizing plate, and a pattern such as the 9th figure
a second twisted nematic liquid crystal display element disposed on the back side of the second (h polarizing plate); A liquid crystal display device comprising a dichroic absorber exhibiting different coloring properties, and switching the display color of a pattern by controlling on/off the voltage applied to the second transparent electrode. ( 2) The dichroic absorber has a first color polarizing plate having a coloring property only in the polarization direction, and a second color polarizing plate having a coloring property different from the first color polarizing direction. The liquid crystal display device according to claim 1, characterized in that the polarization axes are overlapped vertically and horizontally. The front liquid crystal display #C according to claim 1, characterized in that it is constructed by superimposing a color polarizing plate and a color filter having a different coloring property from the color polarizing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57094245A JPS58209716A (en) | 1982-05-31 | 1982-05-31 | Liquid-crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57094245A JPS58209716A (en) | 1982-05-31 | 1982-05-31 | Liquid-crystal display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58209716A true JPS58209716A (en) | 1983-12-06 |
| JPH0254528B2 JPH0254528B2 (en) | 1990-11-21 |
Family
ID=14104920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57094245A Granted JPS58209716A (en) | 1982-05-31 | 1982-05-31 | Liquid-crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58209716A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61112130A (en) * | 1984-04-02 | 1986-05-30 | テクトロニツクス・インコ−ポレイテツド | Electrooptic display unit |
| US5091795A (en) * | 1985-05-11 | 1992-02-25 | Olympus Optical Co., Ltd. | Optical low-pass filter without using polarizers |
| JPH04251219A (en) * | 1990-04-09 | 1992-09-07 | Proxima Corp | Stacked-type display panel and manufacture thereof |
| US5315418A (en) * | 1992-06-17 | 1994-05-24 | Xerox Corporation | Two path liquid crystal light valve color display with light coupling lens array disposed along the red-green light path |
| US5642125A (en) * | 1992-06-17 | 1997-06-24 | Xerox Corporation | Two path liquid crystal light valve color display |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51364A (en) * | 1974-06-20 | 1976-01-06 | Gen Corp | EKISHOHYOJISOCHI |
| JPS5447598A (en) * | 1977-09-22 | 1979-04-14 | Seiko Instr & Electronics Ltd | Liquid crystal display device |
| JPS56109389A (en) * | 1980-02-01 | 1981-08-29 | Hitachi Ltd | Liquid crystal display unit |
-
1982
- 1982-05-31 JP JP57094245A patent/JPS58209716A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51364A (en) * | 1974-06-20 | 1976-01-06 | Gen Corp | EKISHOHYOJISOCHI |
| JPS5447598A (en) * | 1977-09-22 | 1979-04-14 | Seiko Instr & Electronics Ltd | Liquid crystal display device |
| JPS56109389A (en) * | 1980-02-01 | 1981-08-29 | Hitachi Ltd | Liquid crystal display unit |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61112130A (en) * | 1984-04-02 | 1986-05-30 | テクトロニツクス・インコ−ポレイテツド | Electrooptic display unit |
| US5091795A (en) * | 1985-05-11 | 1992-02-25 | Olympus Optical Co., Ltd. | Optical low-pass filter without using polarizers |
| JPH04251219A (en) * | 1990-04-09 | 1992-09-07 | Proxima Corp | Stacked-type display panel and manufacture thereof |
| US5315418A (en) * | 1992-06-17 | 1994-05-24 | Xerox Corporation | Two path liquid crystal light valve color display with light coupling lens array disposed along the red-green light path |
| US5642125A (en) * | 1992-06-17 | 1997-06-24 | Xerox Corporation | Two path liquid crystal light valve color display |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0254528B2 (en) | 1990-11-21 |
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