JPS5981621A - Liquid crystal display device - Google Patents

Liquid crystal display device

Info

Publication number
JPS5981621A
JPS5981621A JP58176069A JP17606983A JPS5981621A JP S5981621 A JPS5981621 A JP S5981621A JP 58176069 A JP58176069 A JP 58176069A JP 17606983 A JP17606983 A JP 17606983A JP S5981621 A JPS5981621 A JP S5981621A
Authority
JP
Japan
Prior art keywords
liquid crystal
display device
display
substrate
scanning
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
JP58176069A
Other languages
Japanese (ja)
Inventor
Yoshio Yamazaki
山崎 淑夫
Teiji Miura
三浦 「てい」次
Koichi Oguchi
小口 幸一
Toshimoto Kodaira
小平 寿源
Shinji Morozumi
両角 伸治
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP58176069A priority Critical patent/JPS5981621A/en
Publication of JPS5981621A publication Critical patent/JPS5981621A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362Active matrix addressed cells
    • G02F1/136277Active matrix addressed cells formed on a semiconductor substrate, e.g. of silicon
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362Active matrix addressed cells
    • G02F1/136213Storage capacitors associated with the pixel electrode
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362Active matrix addressed cells
    • G02F1/13624Active matrix addressed cells having more than one switching element per pixel

Landscapes

  • Physics & Mathematics (AREA)
  • Liquid Crystal (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)

Abstract

PURPOSE:To enable sharp color display and to obtain superior drive characteristics by applying the electrooptical effect of a liquid crystal compsn. and using a semiconductor substrate having plural active elements formed on one of electrodes constituting a display device. CONSTITUTION:Two transistors 305, 306 connected in series formed in each unit cell 301 are scanned by an X scanning circuit 302 and a Y scanning circuit 303. When both transistor gates come into active states in accord, a time modulated display signal 304 given to the source is written on the drain. All the dots of a dot matrix display device are scanned and this scanning is repeated to obtain optional characters and figures. In addition, the scanning speed at which observers feel no flicker is necessary for the display. In order to improve deterioration of image quality of a displayed image due to the low response speed of the liquid crystals and the performance of the switching transistors at the time of nonaction, it is effective to form a capacitor in parallel to each unit cell.

Description

【発明の詳細な説明】 本発明は、多色性染料とネマチンク液晶とから成る液晶
組成物の電気光学効果を用いた表示装置において、表示
セル全構成する一方の電極に複数個の能動素子を形成し
た半導体基板を用いたことを特徴とする液晶1表示装置
に関するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention provides a display device that utilizes the electro-optic effect of a liquid crystal composition consisting of a pleochroic dye and a nematic liquid crystal, in which a plurality of active elements are provided on one electrode constituting the entire display cell. The present invention relates to a liquid crystal 1 display device characterized by using the formed semiconductor substrate.

液晶表示素子は、低パワー性、薄型率iすが可能という
特徴が生かされて、電卓や時計の表示に応用されている
が、汎用ディスプレーとしての特性は満足すべきもので
はない。即ち、マルチブレフサ−駆動をする場合、応答
速度も速いこと、温度妃よる特性変什がないこと、視角
依存性がないことなどが必要条件となるが、液晶表示素
子の場合、これらの条件がいずれも光分とは言えない。
Liquid crystal display elements have been applied to displays in calculators and watches due to their low power and low profile characteristics, but their characteristics as general-purpose displays are not satisfactory. In other words, when using a multi-blep sensor drive, the necessary conditions include fast response speed, no change in characteristics due to temperature, and no viewing angle dependence, but in the case of liquid crystal display elements, these conditions are It cannot be said that it is a minute of light.

従って、応用面においても柳、在は限定されている。Therefore, its use is limited in terms of application.

本発明の目的は、液晶表示素子のこのような特性上の欠
点を除去するために多色性染料とネマチンク液扁とから
なる液晶組成物の電気光学効果音用い7’を表示装置の
広角贋でのa誌良好性と表示装置を構成する単位表示襄
素毎にトランジスタを形成してグイナミンクマトリック
ス信号入力にJt)スタテインク動作する液晶の駆動を
行ない更に任意の階調による表面画像表示を行なうもの
である。
The purpose of the present invention is to eliminate such drawbacks in the characteristics of liquid crystal display devices by using an electro-optic sound effect of a liquid crystal composition consisting of a pleochroic dye and a nematic fluid. A transistor is formed for each unit display element constituting the display device, and a transistor is formed for each unit display element to input the Guinamink matrix signal to drive a liquid crystal that operates in a static state.Furthermore, surface images can be displayed with arbitrary gradations. It is something to do.

多色性染料を含むネマチック液晶はDIS M液晶に比
べて低′市圧。低消費電力で駆動が可能であり、偏光板
金も不要にすることから薄型小型な携帯機器に適した表
示装置を提供するものである。・さらに扁えば、従来の
ねじれネマチック液晶と@元フィルターを用いたFFi
型の液晶表示方式とは異った多色性染料を含むネマチッ
ク液晶組成物の電気光学効果を用いた表示方式を適用す
ることにより、鮮明なカラー表示が可能でしかも、優れ
た駆動特性を有する新規な液晶表示装置を提供するもの
である。
Nematic liquid crystals containing pleochroic dyes have a lower market pressure than DISM liquid crystals. The present invention provides a display device that can be driven with low power consumption and eliminates the need for a polarizing sheet metal, making it suitable for thin and small portable devices.・Furthermore, FFi using conventional twisted nematic liquid crystal and original filter
By applying a display method that uses the electro-optical effect of a nematic liquid crystal composition containing a pleochroic dye, which is different from the conventional liquid crystal display method, it is possible to display clear colors and has excellent drive characteristics. The present invention provides a new liquid crystal display device.

多色性染料を含みネマチック液晶組成物の電気光学効果
會用いた表示装置は、ネマチック液晶の誘′亀異方性の
正負を選ぶこと如よシカラーのバンクに白いパターン又
は白いバンクにカラーパターンの方式があるが、本発明
においては、そのいずれも使用可能である。
A display device using an electro-optical effect of a nematic liquid crystal composition containing a pleochroic dye can be used to create a white pattern on a shicolor bank or a color pattern on a white bank by selecting the positive or negative polarity of the dielectric anisotropy of the nematic liquid crystal. There are several methods, and any of them can be used in the present invention.

第1図は多色性染料を含むネマチック液晶組成物の電気
光学効果を示す原理楔型図である。第1図aは母体とな
るネマチック液晶組成物の誘電異方性が負の場合を示し
である。入射光109に対して、透明な導電被膜106
全備えた透明平板101と平行に配置された電、i@1
04との間に多色性染料+05を含む1N電異方性が負
のネマチック液晶106が封入式れている。この液晶セ
ルに電界が印加されるよう、それぞれの電極端子からリ
ード線を散り出し、電源108゜スイッチ間に接続され
ている。この場合、電極内表面は液晶分子が図のように
垂直に配向するように処理しである。
FIG. 1 is a principle wedge diagram showing the electro-optic effect of a nematic liquid crystal composition containing a pleochroic dye. FIG. 1a shows the case where the dielectric anisotropy of the nematic liquid crystal composition serving as the matrix is negative. A conductive film 106 that is transparent to incident light 109
A fully equipped transparent flat plate 101 and an electric wire placed in parallel, i@1
A 1N nematic liquid crystal 106 containing a pleochroic dye +05 and having negative electrical anisotropy is sealed between the 04 and 04. In order to apply an electric field to this liquid crystal cell, lead wires are spread out from each electrode terminal and connected between the power source 108° switch. In this case, the inner surface of the electrode is treated so that the liquid crystal molecules are vertically aligned as shown in the figure.

第1図すは、これに′電界を電力0した。嚇合の模型図
である。透明4[験16を備えた透明乎板醜極111と
対向電極112の間にスイッチ117をオンにした場合
電界が印カロされ、内部に封入きれた組成物115,1
16はネマチック液晶のタイボールの向きに従って電界
に対し垂直に配向する。
In Figure 1, the electric field was set to zero. It is a model diagram of a battle. When the switch 117 is turned on between the transparent electrode 111 and the counter electrode 112, an electric field is applied, and the composition 115,1 sealed inside is
16 is oriented perpendicular to the electric field according to the direction of the tie ball of the nematic liquid crystal.

すると、組成物に含まれている多已性染料は電界印加前
のaの状態から、電界印加後のbの状態に変わり、その
染料特有の色調の変化を起こして見える。例えは二色性
染料の場合、具体的には、aの状態はほとんど無色であ
るが、bでは特有の色町を呈する。
Then, the multicolor dye contained in the composition changes from state a before the application of the electric field to state b after the application of the electric field, causing a change in color tone peculiar to the dye. For example, in the case of a dichroic dye, specifically, state a is almost colorless, but state b exhibits a unique color pattern.

本発明は、上記パネルの一部に半導体スインチング素子
を有−)る半導体基板を配置する。第2図にはパネルの
構造を示す。シリコン基板201上にシリジンゲートM
OSトランジスタを形成するため処ポリシリコンによる
ゲート電極2 iJ 2と配線層及び基板の導電型と異
なる導電型の拡散VCより形成されたソース206゜2
05とドレイン204.204とからなっている。ソー
ス或いはドレイン或いはケート電極から配線にはアルミ
もしくはアルミシリコンによる配線が行なわれでおり、
更にドレ1ン出力により前記多色性染料とネマチック液
晶とからなる液晶組成物208に印加する電圧を制御し
且つ素子効果を顕著にするための単位セルの背面電極2
09が設けられる。上記背面電極としては白色アルミニ
クム合金からなる薄膜或いは白色絶縁膜上に透明電極全
組み合わせたものを利用できる。上部透明′電極210
と前記背面電$i!、209とはラビング若しくは配向
処理剤によシ配向処理を行なった後に、上記液晶組成物
を封入する。上記スインチング素子としてシリコンゲー
トトランジスタは製造工程も簡便であシ、動作閾値電圧
も低く、セルノアライメント及び多層配線が容易であシ
ため能動素子の占める面積が小さくて済むため上記背面
電極の有効1r1積が大きくとれるという長所金有する
が、アルミゲート或いはモリゴテンゲート等、他のλ4
08型トランジスタでもよい。
In the present invention, a semiconductor substrate having a semiconductor switching element is disposed in a part of the panel. Figure 2 shows the structure of the panel. A syringe gate M is formed on a silicon substrate 201.
To form an OS transistor, a gate electrode 2 iJ 2 made of polysilicon and a source 206° 2 made of a diffused VC of a conductivity type different from that of the wiring layer and substrate are used.
05 and a drain 204.204. The wiring from the source, drain, or gate electrode is made of aluminum or aluminum silicon.
Furthermore, a back electrode 2 of the unit cell is used to control the voltage applied to the liquid crystal composition 208 made of the pleochroic dye and nematic liquid crystal by the drain output and to make the element effect remarkable.
09 is provided. As the back electrode, a thin film made of a white aluminum alloy or a combination of a transparent electrode on a white insulating film can be used. Upper transparent electrode 210
And said back electric $i! , 209, the above-mentioned liquid crystal composition is sealed after being subjected to alignment treatment by rubbing or an alignment treatment agent. As the above-mentioned switching element, a silicon gate transistor has a simple manufacturing process, low operating threshold voltage, easy cell alignment and multilayer wiring, and the area occupied by the active element is small, so the effective 1r1 product of the back electrode is used. Although it has the advantage of being able to obtain a large amount of metal, other λ4 gates such as aluminum gates or
A 08 type transistor may also be used.

第3図には本発明のドントマトリソクス液晶表示装置の
回路を示す。単位セル601毎に設けられた二つの直列
トランジスタ50’5,506はX走査回路302とX
走査回路306とにより走査される。二つのトランジス
タのゲートが一致して動作状態になったとき、ソースに
与えられた時間変調された表示信号504全ドレインに
書き込む。
FIG. 3 shows a circuit of the don't-matrix liquid crystal display device of the present invention. Two series transistors 50'5 and 506 provided for each unit cell 601 connect the X scanning circuit 302 and the
It is scanned by a scanning circuit 306. When the gates of the two transistors coincide and become operational, the time modulated display signal 504 applied to the source is written to all drains.

ドントマトリンクス表示装置の全ドツトについて疋査し
、繰返し走査する・ことにより、任意の文字。
Any character can be created by scanning all the dots on the DonTomato Links display and scanning repeatedly.

図形を得ることができる。You can get shapes.

更に表示のための走査速度はフリンカーを感じない速度
(20H2以上)が必要であるが、液晶の応答速度が遅
いことと、スイッチングトランジスタの非動作時の性能
に寄因する羨示像の画質の低下全改善するために単位セ
ルと並列にコンデンサーを形成することは有効である。
Furthermore, the scanning speed for display needs to be at a speed (20H2 or higher) at which no flicker is felt, but the image quality of the displayed image may be affected by the slow response speed of the liquid crystal and the performance of the switching transistor when not in operation. It is effective to form a capacitor in parallel with the unit cell to improve the overall drop.

このコンデンサーQよ半導体製造工程での酸化工程。窒
化工程。
This capacitor Q is an oxidation process in the semiconductor manufacturing process. Nitriding process.

拡散工程を′用いて容易につくることができる。It can be easily produced using a diffusion process.

オた上記走査回路として、レフトレジスター或いはリン
グ力ワンター等任意の回路が可能であるが、按示体駆動
用スイッチングトランジスタと同一基板内に形成するこ
とによ、り実装工程全署しく簡便什できる。更に本発明
による回路では、デジタル回路である疋今回路とアナロ
グ量である表示信号と全分離しているため、階調表示が
容易に行なえる。更に表示体゛の上部透明共通電極の電
位レベルヲ、・へ択する回路と前記表示信号を反転する
回路と葡同期して動かすことによυ液晶の:52″香駆
動も可能となシ、表示体の長寿合作を図ることができる
Although any circuit such as a left register or a ring force transistor can be used as the above-mentioned scanning circuit, by forming it on the same substrate as the switching transistor for driving the display body, the entire mounting process can be made simpler and faster. . Further, in the circuit according to the present invention, since the digital circuit, which is a digital circuit, and the display signal, which is an analog quantity, are completely separated, gradation display can be easily performed. Furthermore, by synchronizing the circuit for selecting the potential level of the upper transparent common electrode of the display body and the circuit for inverting the display signal, it is possible to drive the 52" liquid crystal. It is possible to increase the longevity of the body.

第4図には、テレビの如き画像台足を行なうための、パ
ネルの実装を示す。第4図aは一枚半導、体基板401
によるもので、半導体回路の入力配壱である電源線。ビ
デオ信号線。走査信号tail 404は金属片若しく
は導′亀性ペーストによる導体層403にて下部半導体
基板401から上部透明基板402の電極配線へと導ひ
かれる。従って、外部回路部品との接続は、上部透明基
板を用いて行なわれ、下部シリコン基板から面接出力を
出す構造に比べて低コスト化できる。。
FIG. 4 shows the implementation of a panel to provide a television-like image stand. Figure 4a shows a single semiconductor body substrate 401.
This is due to the power supply line, which is the input circuit for semiconductor circuits. video signal line. A scanning signal tail 404 is guided from the lower semiconductor substrate 401 to the electrode wiring of the upper transparent substrate 402 through a conductor layer 403 made of a metal piece or conductive paste. Therefore, connections with external circuit components are made using the upper transparent substrate, and costs can be reduced compared to a structure in which surface output is output from the lower silicon substrate. .

第4図すには複数のシリコン基板音用いた叛示装肯の構
造を示す。φ5緑性基板410上に係数個の半導体基板
411゜412を熱可塑性樹脂を用いて平坦住良く埋設
する。マヌク然宥或いはホトエンチング法を用いて半導
体制11t%基板の相互配線416と出力電極414の
配線を行なう、スベーザ−415を介して上記絶縁基板
416とは一体成形し、内部を間417に液晶組成物を
光塙する。
FIG. 4 shows the structure of a rebellion device using a plurality of silicon substrates. A coefficient number of semiconductor substrates 411 and 412 are buried flat and well on a φ5 green substrate 410 using thermoplastic resin. The interconnection 416 of the semiconductor 11t% substrate and the output electrode 414 are interconnected using a photo-etching method or a photo-etching method. Lighten things.

以上本発明は半2!を体重板上にMO8型トランジスタ
による回路構成の例を述べたが、この他にも多重ゲート
を有する静電誘導型トランジスタ或いはバイホーラトラ
ンジスタ及び工ILによっても構成することができる。
This invention is half 2! Although an example of a circuit configuration using MO8 type transistors on the weight plate has been described, it can also be configured using electrostatic induction type transistors having multiple gates, bihole transistors, and engineered ILs.

更に、ドントマトリンクス駆jllb回路の例として、
二つのトランジスタのゲ−1−(N号走査による画像走
査の例を述べたが、一つのトランジスタによるゲート(
S号走査とソース信月走査によっても画像走査を行なう
ことが出来る。′−f/と画1架の階調表示法として電
圧差による方法以外に、信号パルス幅による階調表示を
11なうことも出来る。
Furthermore, as an example of the Don Tomato Links driver jllb circuit,
We have described an example of image scanning using two transistor gates (N number of scans), but gate (
Image scanning can also be performed by S scan and source Shingetsu scan. In addition to the voltage difference method for displaying 11 gradations using '-f/' and 1 frame, it is also possible to display 11 gradations using a signal pulse width.

以上、本発明は、上側基板を一枚の透明基板とし、下側
基板は、複数の半導体基板で形成し、複数の半導体基板
は匣いに平坦度を維持されて固定部材上に設置されたか
ら、単結晶半導体基板のサイズに限定されて液晶表示装
置のサイズ金決める必要がなく、任意のサイズの大型画
面の液晶表示装置が実現でさる効果を有する。
As described above, in the present invention, the upper substrate is a single transparent substrate, the lower substrate is formed of a plurality of semiconductor substrates, and the plurality of semiconductor substrates are placed on a fixing member while maintaining flatness in a box. Therefore, it is not necessary to determine the size of the liquid crystal display device based on the size of the single crystal semiconductor substrate, and a liquid crystal display device with a large screen of any size can be realized.

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

第1図は多色性染料とネマチック液晶から成る液晶紹成
物圧よる電気光学的な表示装置の動作原理、 第2図は表示体ハネルの?11(分オI々造、第3図は
表示体パネルの回路図、 第4図は表示体パネルの実装構造。 以上 出願人 株式会社 諏訪精工告 代理人 弁理士 最 」−1拷 /ipl               //1(α)
(ト) 第1図 第2図 第3図 第4図
Figure 1 shows the operating principle of an electro-optical display device based on a liquid crystal composition consisting of a pleochroic dye and nematic liquid crystal. 11 (Fig. 3 is the circuit diagram of the display panel, and Fig. 4 is the mounting structure of the display panel. Applicant: Suwa Seiko Co., Ltd., Patent Attorney, Patent Attorney) -1/ipl/ /1(α)
(G) Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

【特許請求の範囲】[Claims] 透明な上側基板、該上側基板に設けられた透明電極、該
上側基板と空@を残して対置される下側基板及び該空隙
に液晶組成物が封入されてなる液晶表示装置において、
該液晶組成物は、多色性染料とネマチンク液晶から成り
、該下側基板は半導体基板を用い、該半導体基板に複数
の能動素子が形成され、該半導体基板上には、マトリク
ス状に形成されてなる複数の光反射型背面電極を形成し
てなり、該上側基板は、一枚の透明基板で形成され、該
下側基板は、複数の半導体基板で形成され、■複数の半
導体基板は互いに平坦度を維持されて固定部材上に設置
されてなることを特徴とする液晶表示装置。
A liquid crystal display device comprising a transparent upper substrate, a transparent electrode provided on the upper substrate, a lower substrate opposed to the upper substrate leaving a space, and a liquid crystal composition sealed in the space,
The liquid crystal composition is composed of a pleochroic dye and a nematic liquid crystal, the lower substrate is a semiconductor substrate, a plurality of active elements are formed on the semiconductor substrate, and a plurality of active elements are formed in a matrix on the semiconductor substrate. The upper substrate is formed of a single transparent substrate, the lower substrate is formed of a plurality of semiconductor substrates, and the plurality of semiconductor substrates are A liquid crystal display device characterized in that it is installed on a fixed member while maintaining flatness.
JP58176069A 1983-09-22 1983-09-22 Liquid crystal display device Pending JPS5981621A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58176069A JPS5981621A (en) 1983-09-22 1983-09-22 Liquid crystal display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58176069A JPS5981621A (en) 1983-09-22 1983-09-22 Liquid crystal display device

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP2943078A Division JPS54136196A (en) 1978-03-14 1978-03-14 Liquid crystal display unit

Publications (1)

Publication Number Publication Date
JPS5981621A true JPS5981621A (en) 1984-05-11

Family

ID=16007171

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58176069A Pending JPS5981621A (en) 1983-09-22 1983-09-22 Liquid crystal display device

Country Status (1)

Country Link
JP (1) JPS5981621A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4838652A (en) * 1985-05-15 1989-06-13 Canon Kabushiki Kaisha Image forming apparatus
US4917467A (en) * 1988-06-16 1990-04-17 Industrial Technology Research Institute Active matrix addressing arrangement for liquid crystal display
US4938565A (en) * 1987-08-21 1990-07-03 Nec Corporation Thin-film transistor array used for liquid-crystal display device
US5506598A (en) * 1992-01-21 1996-04-09 Sharp Kabushiki Kaisha Active matrix substrate and a method for driving the same
US5543947A (en) * 1991-05-21 1996-08-06 Semiconductor Energy Laboratory Co., Ltd. Method of driving an LCD employing an active matrix with short pulses for gray scale
US5821559A (en) * 1991-02-16 1998-10-13 Semiconductor Energy Laboratory Co., Ltd. Electric device, matrix device, electro-optical display device, and semiconductor memory having thin-film transistors
US6028333A (en) * 1991-02-16 2000-02-22 Semiconductor Energy Laboratory Co., Ltd. Electric device, matrix device, electro-optical display device, and semiconductor memory having thin-film transistors

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4838652A (en) * 1985-05-15 1989-06-13 Canon Kabushiki Kaisha Image forming apparatus
US4938565A (en) * 1987-08-21 1990-07-03 Nec Corporation Thin-film transistor array used for liquid-crystal display device
US4917467A (en) * 1988-06-16 1990-04-17 Industrial Technology Research Institute Active matrix addressing arrangement for liquid crystal display
US5821559A (en) * 1991-02-16 1998-10-13 Semiconductor Energy Laboratory Co., Ltd. Electric device, matrix device, electro-optical display device, and semiconductor memory having thin-film transistors
US6028333A (en) * 1991-02-16 2000-02-22 Semiconductor Energy Laboratory Co., Ltd. Electric device, matrix device, electro-optical display device, and semiconductor memory having thin-film transistors
US5543947A (en) * 1991-05-21 1996-08-06 Semiconductor Energy Laboratory Co., Ltd. Method of driving an LCD employing an active matrix with short pulses for gray scale
US5506598A (en) * 1992-01-21 1996-04-09 Sharp Kabushiki Kaisha Active matrix substrate and a method for driving the same

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