FR2763145B1 - Dispositif a cristaux liquides comprenant des moyens d'ancrage perfectionnes sur au moins une plaque de confinement donnant une orientation degeneree sans memoire - Google Patents

Dispositif a cristaux liquides comprenant des moyens d'ancrage perfectionnes sur au moins une plaque de confinement donnant une orientation degeneree sans memoire

Info

Publication number
FR2763145B1
FR2763145B1 FR9705653A FR9705653A FR2763145B1 FR 2763145 B1 FR2763145 B1 FR 2763145B1 FR 9705653 A FR9705653 A FR 9705653A FR 9705653 A FR9705653 A FR 9705653A FR 2763145 B1 FR2763145 B1 FR 2763145B1
Authority
FR
France
Prior art keywords
degenerated
orientation
memory
liquid crystal
device including
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
FR9705653A
Other languages
English (en)
Other versions
FR2763145A1 (fr
Inventor
Lagarde Philippe Martinot
Ivan Dozov
Eric Polossat
Eric Raspaud
Philippe Auroy
Ramdane Olivier Ou
Georges Durand
Sandrine Forget
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
Centre National de la Recherche Scientifique CNRS
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 FR9705653A priority Critical patent/FR2763145B1/fr
Application filed by Centre National de la Recherche Scientifique CNRS filed Critical Centre National de la Recherche Scientifique CNRS
Priority to CA002260262A priority patent/CA2260262A1/fr
Priority to US09/214,432 priority patent/US6452573B1/en
Priority to JP10547791A priority patent/JP2000513837A/ja
Priority to CN98800770A priority patent/CN1228168A/zh
Priority to KR1019997000031A priority patent/KR100546446B1/ko
Priority to EP98924387A priority patent/EP0912914A1/fr
Priority to PCT/FR1998/000909 priority patent/WO1998050821A1/fr
Priority to TW087107075A priority patent/TW569063B/zh
Publication of FR2763145A1 publication Critical patent/FR2763145A1/fr
Application granted granted Critical
Publication of FR2763145B1 publication Critical patent/FR2763145B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G02F1/137—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
    • G02F1/139—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 based on orientation effects in which the liquid crystal remains transparent
    • G02F1/1391—Bistable or multi-stable liquid crystal 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
    • 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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • 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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133753—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle
    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Liquid Crystal (AREA)
FR9705653A 1997-05-07 1997-05-07 Dispositif a cristaux liquides comprenant des moyens d'ancrage perfectionnes sur au moins une plaque de confinement donnant une orientation degeneree sans memoire Expired - Fee Related FR2763145B1 (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
FR9705653A FR2763145B1 (fr) 1997-05-07 1997-05-07 Dispositif a cristaux liquides comprenant des moyens d'ancrage perfectionnes sur au moins une plaque de confinement donnant une orientation degeneree sans memoire
US09/214,432 US6452573B1 (en) 1997-05-07 1998-05-06 Liquid crystal device comprising anchoring means on at least one confinement plate providing a degenerated orientation
JP10547791A JP2000513837A (ja) 1997-05-07 1998-05-06 縮退した配向を与える少なくとも１つの閉じ込め板上に束縛するための手段を備えた液晶装置
CN98800770A CN1228168A (zh) 1997-05-07 1998-05-06 包括用于在至少一个产生退化取向的限制板上进行锚定的方法的液晶器件
CA002260262A CA2260262A1 (fr) 1997-05-07 1998-05-06 Dispositif a cristaux liquides comprenant des moyens d'ancrage sur au moins une plaque de confinement donnant une orientation degeneree
KR1019997000031A KR100546446B1 (ko) 1997-05-07 1998-05-06 축퇴된 배향을 제공하는 적어도 하나의 가둠판 상에 속박 수단을 포함하는 액정 장치
EP98924387A EP0912914A1 (fr) 1997-05-07 1998-05-06 Dispositif a cristaux liquides comprenant des moyens d'ancrage sur au moins une plaque de confinement donnant une orientation degeneree
PCT/FR1998/000909 WO1998050821A1 (fr) 1997-05-07 1998-05-06 Dispositif a cristaux liquides comprenant des moyens d'ancrage sur au moins une plaque de confinement donnant une orientation degeneree
TW087107075A TW569063B (en) 1997-05-07 1998-06-30 Liquid crystal device comprising improved anchoring means on at least one bordering plate for providing an orientation without any memory

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9705653A FR2763145B1 (fr) 1997-05-07 1997-05-07 Dispositif a cristaux liquides comprenant des moyens d'ancrage perfectionnes sur au moins une plaque de confinement donnant une orientation degeneree sans memoire

Publications (2)

Publication Number Publication Date
FR2763145A1 FR2763145A1 (fr) 1998-11-13
FR2763145B1 true FR2763145B1 (fr) 1999-07-30

Family

ID=9506682

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9705653A Expired - Fee Related FR2763145B1 (fr) 1997-05-07 1997-05-07 Dispositif a cristaux liquides comprenant des moyens d'ancrage perfectionnes sur au moins une plaque de confinement donnant une orientation degeneree sans memoire

Country Status (9)

Country Link
US (1) US6452573B1 (fr)
EP (1) EP0912914A1 (fr)
JP (1) JP2000513837A (fr)
KR (1) KR100546446B1 (fr)
CN (1) CN1228168A (fr)
CA (1) CA2260262A1 (fr)
FR (1) FR2763145B1 (fr)
TW (1) TW569063B (fr)
WO (1) WO1998050821A1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7071824B2 (en) 1999-07-29 2006-07-04 Micron Technology, Inc. Radio frequency identification devices, remote communication devices, identification systems, communication methods, and identification methods
TWI292846B (fr) 2000-07-13 2008-01-21 Japan Science & Tech Agency
GB0017953D0 (en) * 2000-07-21 2000-09-13 Secr Defence Liquid crystal device
US6611308B2 (en) * 2000-11-30 2003-08-26 Hannstar Display Corp. Cone protrusion in multi-domain vertically aligned liquid crystal display
FR2835644B1 (fr) * 2002-02-06 2005-04-29 Nemoptic Procede et dispositif d'adressage d'un ecran cristal liquide bistable
GB2388201A (en) * 2002-04-30 2003-11-05 Hewlett Packard Co Liquid crystal device
FR2847704B1 (fr) * 2002-11-26 2005-01-28 Nemoptic Procede et dispositif perfectionnes d'affichage a cristal liquide nematique bistable
US7033523B2 (en) * 2003-11-14 2006-04-25 Photintech Inc. Composite liquid crystalline mixture
US20080094556A1 (en) * 2004-03-01 2008-04-24 Koninklijke Philips Electronics, N.V. Birefringent layers with tilted optical axis
FR2899712B1 (fr) * 2006-04-07 2008-05-30 Nemoptic Sa Perfectionnements aux afficheurs bistables a cristaux liquides nematique
US7855643B2 (en) * 2006-11-10 2010-12-21 Round Rock Research, Llc Tracking systems, passive RFIDs, methods of locating and identifying RFIDs, and methods of tracking items
US20080186178A1 (en) * 2007-02-07 2008-08-07 Micron Technology, Inc. RFIDS, interrogators, indication systems, methods of determining a bi-directional communication range of an interrogator, methods of activating an observable indicator, and methods of indicating bi-directional functionality of a radio connection
KR101747421B1 (ko) * 2010-01-20 2017-06-14 가부시키가이샤 한도오따이 에네루기 켄큐쇼 액정 표시 장치의 구동 방법
US9720283B2 (en) 2014-02-26 2017-08-01 Samsung Display Co., Ltd Curved display device comprising first and second liquid crystal molecules with respective first and second pretilt-angles and method of manufacturing the same

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7904618A (nl) 1979-06-13 1980-12-16 Philips Nv Optische focusseerinrichting.
JP3330940B2 (ja) * 1991-05-02 2002-10-07 ケント ステイト ユニバーシティ 液晶光変調デバイスと液晶物質
US5492769A (en) * 1992-09-17 1996-02-20 Board Of Governors Of Wayne State University Method for the production of scratch resistance articles and the scratch resistance articles so produced
US5579140A (en) * 1993-04-22 1996-11-26 Sharp Kabushiki Kaisha Multiple domain liquid crystal display element and a manufacturing method of the same
JP3267844B2 (ja) * 1994-11-09 2002-03-25 シャープ株式会社 液晶素子およびその製造方法
KR100247137B1 (ko) * 1996-07-29 2000-03-15 구본준 멀티도메인 액정셀의 제조방법

Also Published As

Publication number Publication date
JP2000513837A (ja) 2000-10-17
EP0912914A1 (fr) 1999-05-06
TW569063B (en) 2004-01-01
KR100546446B1 (ko) 2006-01-26
CA2260262A1 (fr) 1998-11-12
US6452573B1 (en) 2002-09-17
CN1228168A (zh) 1999-09-08
KR20000023586A (ko) 2000-04-25
FR2763145A1 (fr) 1998-11-13
WO1998050821A1 (fr) 1998-11-12

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Legal Events

Date Code Title Description
TP Transmission of property
TP Transmission of property
TP Transmission of property

Owner name: FRANCE BREVETS, FR

Effective date: 20130315

ST Notification of lapse

Effective date: 20150130