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ES2049218T3 - Pantalla de cristal liquido con pixels que presentan capacitancia auxiliar. - Google Patents

Pantalla de cristal liquido con pixels que presentan capacitancia auxiliar.

Info

Publication number
ES2049218T3
ES2049218T3 ES87307515T ES87307515T ES2049218T3 ES 2049218 T3 ES2049218 T3 ES 2049218T3 ES 87307515 T ES87307515 T ES 87307515T ES 87307515 T ES87307515 T ES 87307515T ES 2049218 T3 ES2049218 T3 ES 2049218T3
Authority
ES
Spain
Prior art keywords
electrode
pixel
auxiliary
layer
capacitance
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 - Lifetime
Application number
ES87307515T
Other languages
English (en)
Inventor
Yair Baron
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.)
OIS Optical Imaging Systems Inc
Original Assignee
OIS Optical Imaging Systems Inc
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 OIS Optical Imaging Systems Inc filed Critical OIS Optical Imaging Systems Inc
Application granted granted Critical
Publication of ES2049218T3 publication Critical patent/ES2049218T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • 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
    • G02F1/1345—Conductors connecting electrodes to cell terminals
    • 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
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136213—Storage capacitors associated with the pixel electrode
    • 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
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/1365—Active matrix addressed cells in which the switching element is a two-electrode device
    • 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
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device

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)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Liquid Crystal Substances (AREA)

Abstract

SE PRESENTA UN DISPLAY QUE INCLUYE AL MENOS UN PIXEL (50) QUE TIENE UNA CAPACITANCIA DE PIXEL Y UNA CAPACITANCIA AUXILIAR PARALELAS CON LA CAPACITANCIA DE PIXEL. EL PIXEL INCLUYE ELECTRODOS SITUADOS EN AL MENOS TRES CAPAS SEPARADAS, NOMINALMENTE UN PRIMER ELECTRODO (28) QUE INCLUYE UNA PRIMERA Y UNA SEGUNDA PARTES DE ELECTRODO SEPARADAS EN UNA PRIMERA CAPA Y UN SEGUNDO ELECTRODO (30) SEPARADO Y MIRANDO AL PRIMER ELECTRODO EN UNA RELACION SUBSTANCIALMENTE PARALELA CON RESPECTO A UNA SEGUNDA CAPA. EL SEGUNDO ELECTRODO SE AISLA ELECTRICAMENTE DE TODAS LAS CONEXIONES DEL CIRCUITO EXTERNO Y DE TODOS LOS OTROS ELECTRODOS DE PIXEL Y EL MATERIAL DE CRISTAL LIQUIDO (32) SE DISPONE ENTRE EL PRIMER Y EL SEGUNDO ELECTRODO. LA CAPACITANCIA AUXILIAR SE SUMINISTRA MEDIANTE AL MENOS UN PRIMER ELECTRODO AUXILIAR (24) EN UNA TERCERA CAPA SEPARADA Y AISLADA Y QUE MIRA A LA PARTE PRIMERA DE ELECTRODO DEL PRIMER ELECTRODO EN EL LADO DEL PRIMER ELECTRODO OPUESTO AL MATERIAL DE CRISTAL LIQUIDO. EL ELECTRODO AUXILIAR SE CONECTA ELECTRICAMENTE A LA SEGUNDA PARTE DE ELECRODO DEL PRIMER ELECTRODO. SE PUEDE CONSEGUIR CAPACITANCIA AUXILIAR ADICCIONAL INCLUYENDO EN EL PIXEL UN SEGUNDO ELECTRODO AUXILIAR EN LA TERCERA CAPA CONCECTADA A LA PRIMERA PARTE DEL PRIMER ELECTRODO. TAMBIEN SE PRESENTA UN METODO PARA LA CONSTRUCCION EFICIENTE DE TALES PIXELES USANDO SOLO UNA CAPA DE AISLAMIENTO QUE REALIZA TRES FUNCIONES DISTINTAS. ADEMAS CAPACITANCIA AUXILIAR ADICCIONAL SE PUEDE CONSEGUIR TAMBIEN INCLUYENDO ELECTRODOS AUXILIARES ADICIONALES COLOCADOS EN CAPAS ADICIONALES.
ES87307515T 1986-10-09 1987-08-25 Pantalla de cristal liquido con pixels que presentan capacitancia auxiliar. Expired - Lifetime ES2049218T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/916,914 US4728175A (en) 1986-10-09 1986-10-09 Liquid crystal display having pixels with auxiliary capacitance

Publications (1)

Publication Number Publication Date
ES2049218T3 true ES2049218T3 (es) 1994-04-16

Family

ID=25438063

Family Applications (1)

Application Number Title Priority Date Filing Date
ES87307515T Expired - Lifetime ES2049218T3 (es) 1986-10-09 1987-08-25 Pantalla de cristal liquido con pixels que presentan capacitancia auxiliar.

Country Status (9)

Country Link
US (1) US4728175A (es)
EP (1) EP0263589B1 (es)
JP (1) JPS63113525A (es)
KR (1) KR960016099B1 (es)
AT (1) ATE98783T1 (es)
CA (1) CA1266113A (es)
DE (1) DE3788490T2 (es)
ES (1) ES2049218T3 (es)
IL (1) IL84103A (es)

Families Citing this family (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0713715B2 (ja) * 1987-01-22 1995-02-15 ホシデン株式会社 カラ−液晶表示素子
GB2203881B (en) * 1987-04-16 1991-03-27 Philips Electronic Associated Liquid crystal display device
FR2614718B1 (fr) * 1987-04-28 1989-06-16 Commissariat Energie Atomique Ecran matriciel d'affichage a cristaux liquides muni de capacites de stockage
JP2620240B2 (ja) 1987-06-10 1997-06-11 株式会社日立製作所 液晶表示装置
JP2771820B2 (ja) * 1988-07-08 1998-07-02 株式会社日立製作所 アクティブマトリクスパネル及びその製造方法
IT1224722B (it) * 1988-08-26 1990-10-18 Morton Thiokol Inc Societa Del Laminatore automatico ad elevata velocita' di laminazione per laproduzione di pannelli per circuiti stampati
JPH02137366A (ja) * 1988-11-18 1990-05-25 Nec Corp ダイオード型アクティブマトリクス基板
JPH02165125A (ja) * 1988-12-20 1990-06-26 Seiko Epson Corp 表示装置
JPH02176717A (ja) * 1988-12-28 1990-07-09 Sony Corp 液晶表示装置
US4961630A (en) * 1989-03-15 1990-10-09 Ovonic Imaging Systems, Inc. Liquid crystal display with auxiliary pixel capacitance interconnected through substrate
NL8902421A (nl) * 1989-09-29 1991-04-16 Philips Nv Weergeefinrichting.
JP2630663B2 (ja) * 1990-03-09 1997-07-16 セイコー電子工業株式会社 電気光学装置
JP2616160B2 (ja) * 1990-06-25 1997-06-04 日本電気株式会社 薄膜電界効果型トランジスタ素子アレイ
JPH04122982A (ja) * 1990-09-13 1992-04-23 Seiko Instr Inc 電気光学装置の駆動方法
US5402254B1 (en) * 1990-10-17 1998-09-22 Hitachi Ltd Liquid crystal display device with tfts in which pixel electrodes are formed in the same plane as the gate electrodes with anodized oxide films before the deposition of silicon
US5177475A (en) * 1990-12-19 1993-01-05 Xerox Corporation Control of liquid crystal devices
JP2938232B2 (ja) * 1991-07-25 1999-08-23 キヤノン株式会社 強誘電性液晶表示デバイス
WO1994008331A1 (en) * 1992-10-06 1994-04-14 Panocorp Display Systems Drive system and method for panel displays
US5572344A (en) * 1995-01-03 1996-11-05 Xerox Corporation Pixel elements having resistive divider elements
US5748277A (en) * 1995-02-17 1998-05-05 Kent State University Dynamic drive method and apparatus for a bistable liquid crystal display
US6154190A (en) * 1995-02-17 2000-11-28 Kent State University Dynamic drive methods and apparatus for a bistable liquid crystal display
WO1996029312A1 (en) * 1995-03-20 1996-09-26 Orion Electric Co., Ltd. Stilbazolium salt, and preparation and use thereof
JPH09236826A (ja) * 1995-09-28 1997-09-09 Sharp Corp 液晶表示素子およびその製造方法
US6268840B1 (en) 1997-05-12 2001-07-31 Kent Displays Incorporated Unipolar waveform drive method and apparatus for a bistable liquid crystal display
US6133895A (en) * 1997-06-04 2000-10-17 Kent Displays Incorporated Cumulative drive scheme and method for a liquid crystal display
WO1998057222A1 (en) * 1997-06-10 1998-12-17 Lg. Philips Lcd Co., Ltd. Liquid crystal display with wide viewing angle and method for making it
JP3941901B2 (ja) * 1998-04-28 2007-07-11 株式会社半導体エネルギー研究所 半導体装置の作製方法
US6268839B1 (en) 1998-05-12 2001-07-31 Kent State University Drive schemes for gray scale bistable cholesteric reflective displays
US6204835B1 (en) 1998-05-12 2001-03-20 Kent State University Cumulative two phase drive scheme for bistable cholesteric reflective displays
US6335776B1 (en) 1998-05-30 2002-01-01 Lg. Philips Lcd Co., Ltd. Multi-domain liquid crystal display device having an auxiliary electrode formed on the same layer as the pixel electrode
KR100357213B1 (ko) 1998-07-23 2002-10-18 엘지.필립스 엘시디 주식회사 멀티도메인 액정표시소자
US6313481B1 (en) 1998-08-06 2001-11-06 Semiconductor Energy Laboratory Co., Ltd. Semiconductor device and a method of manufacturing the same
AU9247398A (en) * 1998-08-06 2000-02-28 Victor A. Konovalov Liquid-cristal display and the method of its fabrication
US6654090B1 (en) 1998-09-18 2003-11-25 Lg. Philips Lcd Co., Ltd. Multi-domain liquid crystal display device and method of manufacturing thereof
US6525794B1 (en) 1998-10-19 2003-02-25 Lg. Philips Lcd Co., Ltd. Multi-domain liquid crystal display device having a dielectric frame controlling alignment of the liquid crystal molecules
KR100313949B1 (ko) 1998-11-11 2002-09-17 엘지.필립스 엘시디 주식회사 멀티도메인액정표시소자
US6900869B1 (en) 1998-11-25 2005-05-31 Lg. Philips Lcd Co., Ltd. Multi-domain liquid crystal display device with particular dielectric structures
US6809787B1 (en) * 1998-12-11 2004-10-26 Lg.Philips Lcd Co., Ltd. Multi-domain liquid crystal display device
US6320563B1 (en) 1999-01-21 2001-11-20 Kent State University Dual frequency cholesteric display and drive scheme
KR100339332B1 (ko) 1999-02-08 2002-06-03 구본준, 론 위라하디락사 멀티도메인 액정표시소자
US6791647B1 (en) 1999-02-24 2004-09-14 Lg Philips Lcd Co., Ltd. Multi-domain liquid crystal display device
KR100357216B1 (ko) 1999-03-09 2002-10-18 엘지.필립스 엘시디 주식회사 멀티도메인 액정표시소자
KR100519366B1 (ko) 1999-04-03 2005-10-07 엘지.필립스 엘시디 주식회사 멀티도메인 액정표시소자
KR100308161B1 (ko) * 1999-05-07 2001-09-26 구본준, 론 위라하디락사 멀티도메인 액정표시소자
KR100627107B1 (ko) 1999-07-31 2006-09-25 엘지.필립스 엘시디 주식회사 멀티 도메인 액정표시소자 및 그 제조방법
JP4755748B2 (ja) * 1999-09-24 2011-08-24 東芝モバイルディスプレイ株式会社 平面表示装置
US6639641B1 (en) 1999-11-25 2003-10-28 Lg.Philips Lcd Co., Ltd. Multi-domain liquid crystal display device
KR100595295B1 (ko) * 2000-06-27 2006-07-03 엘지.필립스 엘시디 주식회사 멀티 도메인 액정표시장치 및 그 제조방법
KR100595296B1 (ko) 2000-06-27 2006-07-03 엘지.필립스 엘시디 주식회사 멀티 도메인 액정표시소자 및 그 제조방법
US7072017B1 (en) 2000-06-29 2006-07-04 Lg. Philips Lcd Co., Ltd. Multi-domain liquid crystal display device having a common-auxiliary electrode and dielectric structures
US7023409B2 (en) 2001-02-09 2006-04-04 Kent Displays, Incorporated Drive schemes for gray scale bistable cholesteric reflective displays utilizing variable frequency pulses
TW493158B (en) * 2001-05-29 2002-07-01 Hannstar Display Corp Transistor array circuit for liquid crystal display
TWI274220B (en) * 2003-08-19 2007-02-21 Hannstar Display Corp A liquid crystal display having thin cell gap and method of producing the same
CN102959605B (zh) * 2011-06-27 2015-11-25 株式会社日本有机雷特显示器 显示装置及其制造方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3150854C2 (de) * 1980-12-22 1985-12-12 Casio Computer Co., Ltd., Tokio/Tokyo Flüssigkristall-Anzeigeeinrichtung
FR2505070B1 (fr) * 1981-01-16 1986-04-04 Suwa Seikosha Kk Dispositif non lineaire pour un panneau d'affichage a cristaux liquides et procede de fabrication d'un tel panneau d'affichage
JPS59131974A (ja) * 1983-01-18 1984-07-28 セイコーエプソン株式会社 液晶表示装置
US4589733A (en) * 1984-06-29 1986-05-20 Energy Conversion Devices, Inc. Displays and subassemblies having improved pixel electrodes
US4639087A (en) * 1984-08-08 1987-01-27 Energy Conversion Devices, Inc. Displays having pixels with two portions and capacitors
DE3436527A1 (de) * 1984-10-05 1986-04-10 Vdo Adolf Schindling Ag, 6000 Frankfurt Multiplexbare fluessigkristallzelle
FR2586859B1 (fr) * 1985-08-27 1987-11-20 Thomson Csf Procede de fabrication d'un transistor de commande pour ecran plat de visualisation et element de commande realise selon ce procede

Also Published As

Publication number Publication date
US4728175A (en) 1988-03-01
CA1266113A (en) 1990-02-20
EP0263589A2 (en) 1988-04-13
KR960016099B1 (ko) 1996-11-27
EP0263589A3 (en) 1989-06-07
ATE98783T1 (de) 1994-01-15
IL84103A0 (en) 1988-03-31
EP0263589B1 (en) 1993-12-15
IL84103A (en) 1991-05-12
JPS63113525A (ja) 1988-05-18
DE3788490D1 (de) 1994-01-27
KR880005483A (ko) 1988-06-29
DE3788490T2 (de) 1994-05-11

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