FR2854980B1 - Procede et dispositif perfectionnes d'affichage a cristal liquide nematique bistable - Google Patents

Procede et dispositif perfectionnes d'affichage a cristal liquide nematique bistable

Info

Publication number
FR2854980B1
FR2854980B1 FR0305934A FR0305934A FR2854980B1 FR 2854980 B1 FR2854980 B1 FR 2854980B1 FR 0305934 A FR0305934 A FR 0305934A FR 0305934 A FR0305934 A FR 0305934A FR 2854980 B1 FR2854980 B1 FR 2854980B1
Authority
FR
France
Prior art keywords
liquid crystal
crystal display
improved method
nematic liquid
bistable nematic
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 - Fee Related
Application number
FR0305934A
Other languages
English (en)
Other versions
FR2854980A1 (fr
Inventor
Lagarde Philippe Martinot
Jacques Angele
Stephane Joly
Jean Denis Lafitte
Francois Leblanc
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.)
France Brevets SAS
Original Assignee
Nemoptic SA
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
Priority to FR0305934A priority Critical patent/FR2854980B1/fr
Application filed by Nemoptic SA filed Critical Nemoptic SA
Priority to EP04742736A priority patent/EP1634270A2/fr
Priority to TW093113683A priority patent/TWI361916B/zh
Priority to KR1020057021898A priority patent/KR101064363B1/ko
Priority to US10/557,721 priority patent/US7616180B2/en
Priority to CNB2004800203960A priority patent/CN100411000C/zh
Priority to PCT/FR2004/001187 priority patent/WO2004104980A2/fr
Priority to JP2006530356A priority patent/JP4740860B2/ja
Publication of FR2854980A1 publication Critical patent/FR2854980A1/fr
Application granted granted Critical
Publication of FR2854980B1 publication Critical patent/FR2854980B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3622—Control of matrices with row and column drivers using a passive matrix
    • G09G3/3629—Control of matrices with row and column drivers using a passive matrix using liquid crystals having memory effects, e.g. ferroelectric liquid crystals
    • 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
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3622—Control of matrices with row and column drivers using a passive matrix
    • G09G3/3629—Control of matrices with row and column drivers using a passive matrix using liquid crystals having memory effects, e.g. ferroelectric liquid crystals
    • G09G3/3637—Control of matrices with row and column drivers using a passive matrix using liquid crystals having memory effects, e.g. ferroelectric liquid crystals with intermediate tones displayed by domain size control
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0469—Details of the physics of pixel operation
    • G09G2300/0478—Details of the physics of pixel operation related to liquid crystal pixels
    • G09G2300/0482—Use of memory effects in nematic liquid crystals
    • G09G2300/0486—Cholesteric liquid crystals, including chiral-nematic liquid crystals, with transitions between focal conic, planar, and homeotropic states
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/06—Details of flat display driving waveforms
    • G09G2310/061—Details of flat display driving waveforms for resetting or blanking
    • G09G2310/062—Waveforms for resetting a plurality of scan lines at a time
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/06—Details of flat display driving waveforms
    • G09G2310/066—Waveforms comprising a gently increasing or decreasing portion, e.g. ramp
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2007—Display of intermediate tones
    • G09G3/2018—Display of intermediate tones by time modulation using two or more time intervals

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
FR0305934A 2003-05-16 2003-05-16 Procede et dispositif perfectionnes d'affichage a cristal liquide nematique bistable Expired - Fee Related FR2854980B1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FR0305934A FR2854980B1 (fr) 2003-05-16 2003-05-16 Procede et dispositif perfectionnes d'affichage a cristal liquide nematique bistable
TW093113683A TWI361916B (en) 2003-05-16 2004-05-14 Improved bistable nematic liquid-crystal display device and improved method therefor
KR1020057021898A KR101064363B1 (ko) 2003-05-16 2004-05-14 쌍안정 네마틱 액정 디스플레이를 구비한 장치 및 진보된방법
US10/557,721 US7616180B2 (en) 2003-05-16 2004-05-14 Advanced method and device with a bistable nematic liquid crystal display
EP04742736A EP1634270A2 (fr) 2003-05-16 2004-05-14 Procede et dispositif perfectionnes d'affichage a cristal liquide nematique bistable
CNB2004800203960A CN100411000C (zh) 2003-05-16 2004-05-14 有关双稳态向列液晶显示器的改进方法及设备
PCT/FR2004/001187 WO2004104980A2 (fr) 2003-05-16 2004-05-14 Procede et dispositif perfectionnes d'affichage a cristal liquide nematique bistable
JP2006530356A JP4740860B2 (ja) 2003-05-16 2004-05-14 双安定ネマティック液晶表示を有する先進的方法および装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0305934A FR2854980B1 (fr) 2003-05-16 2003-05-16 Procede et dispositif perfectionnes d'affichage a cristal liquide nematique bistable

Publications (2)

Publication Number Publication Date
FR2854980A1 FR2854980A1 (fr) 2004-11-19
FR2854980B1 true FR2854980B1 (fr) 2005-07-15

Family

ID=33306432

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0305934A Expired - Fee Related FR2854980B1 (fr) 2003-05-16 2003-05-16 Procede et dispositif perfectionnes d'affichage a cristal liquide nematique bistable

Country Status (8)

Country Link
US (1) US7616180B2 (fr)
EP (1) EP1634270A2 (fr)
JP (1) JP4740860B2 (fr)
KR (1) KR101064363B1 (fr)
CN (1) CN100411000C (fr)
FR (1) FR2854980B1 (fr)
TW (1) TWI361916B (fr)
WO (1) WO2004104980A2 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2610644A1 (fr) 2005-05-31 2006-12-07 Devgen Nv Arni pour la lutte contre les insectes et les arachnides
FR2899712B1 (fr) * 2006-04-07 2008-05-30 Nemoptic Sa Perfectionnements aux afficheurs bistables a cristaux liquides nematique
FR2924520A1 (fr) * 2007-02-21 2009-06-05 Nemoptic Sa Dispositif afficheur a cristal liquide comprenant des moyens perfectionnes de commutation.
FR2916296B1 (fr) * 2007-05-18 2009-08-21 Nemoptic Sa Procede d'adressage d'un ecran matriciel a cristal liquide et dispositif appliquant ce procede.
FR2916295B1 (fr) * 2007-05-18 2010-03-26 Nemoptic Procede d'adressage d'un ecran matriciel a cristal liquide et dispositif appliquant ce procede
DE602007005953D1 (de) 2007-12-06 2010-05-27 Nemoptic Verfahren zur Herstellung einer bistabilen Flüssigkristallzelle
US20110233463A1 (en) * 2008-09-17 2011-09-29 Tetragon Lc Chemie Ag Chiral compounds, cholesteric and ferroelectric liquid crystal compositions comprising these chiral compounds, and liquid crystal displays comprising these liquid crystal compositions
CN102208175B (zh) * 2010-03-29 2016-01-20 精工电子有限公司 双稳定型液晶显示装置的驱动方法
US9007285B2 (en) 2011-09-22 2015-04-14 Delta Electronics, Inc. Multi-line addressing method and apparatus for bistable display
TWI504984B (zh) * 2013-11-19 2015-10-21 Innolux Corp 顯示面板及包含該顯示面板的顯示裝置
CN112699540B (zh) * 2020-12-21 2021-11-23 温州市数据管理发展集团有限公司 一种户外led矩阵屏及设计方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5530573A (en) * 1993-05-27 1996-06-25 Sharp Kabushiki Kaisha Multiple domain liquid crystal display having a cell thickness divided by helical pitch equal to 1/8 or less
GB9402513D0 (en) * 1994-02-09 1994-03-30 Secr Defence Bistable nematic liquid crystal device
GB9510612D0 (en) * 1995-05-25 1995-07-19 Central Research Lab Ltd Improvements in or relating to the addressing of liquid crystal displays
FR2740894B1 (fr) * 1995-11-08 1998-01-23 Centre Nat Rech Scient Dispositif d'affichage perfectionne a base de cristaux liquides et a effet bistable
GB2320103A (en) * 1996-12-05 1998-06-10 Sharp Kk Liquid crystal devices
KR19980033500A (ko) * 1998-04-18 1998-07-25 이신두 반사형 쌍안정 네마틱 액정 표시 장치
JP3666249B2 (ja) * 1998-06-19 2005-06-29 セイコーエプソン株式会社 液晶装置および電子機器
US6320563B1 (en) * 1999-01-21 2001-11-20 Kent State University Dual frequency cholesteric display and drive scheme
FR2824400B1 (fr) 2001-05-04 2003-12-19 Nemoptic Dispositif d'affichage bistable a niveau de gris a base de cristaux liquides

Also Published As

Publication number Publication date
CN100411000C (zh) 2008-08-13
TWI361916B (en) 2012-04-11
EP1634270A2 (fr) 2006-03-15
WO2004104980A3 (fr) 2005-02-03
KR20060015263A (ko) 2006-02-16
TW200512492A (en) 2005-04-01
WO2004104980A2 (fr) 2004-12-02
US7616180B2 (en) 2009-11-10
KR101064363B1 (ko) 2011-09-14
JP2006529030A (ja) 2006-12-28
JP4740860B2 (ja) 2011-08-03
FR2854980A1 (fr) 2004-11-19
CN1823366A (zh) 2006-08-23
US20070070001A1 (en) 2007-03-29

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Legal Events

Date Code Title Description
CL Concession to grant licences
TP Transmission of property

Owner name: FRANCE BREVETS, FR

Effective date: 20130315

ST Notification of lapse

Effective date: 20150130