FR2707019B1 - - Google Patents

Info

Publication number
FR2707019B1
FR2707019B1 FR9407780A FR9407780A FR2707019B1 FR 2707019 B1 FR2707019 B1 FR 2707019B1 FR 9407780 A FR9407780 A FR 9407780A FR 9407780 A FR9407780 A FR 9407780A FR 2707019 B1 FR2707019 B1 FR 2707019B1
Authority
FR
France
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
FR9407780A
Other versions
FR2707019A1 (fr
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.)
L3 Technologies ESS Inc
Original Assignee
Litton Systems Canada Ltd
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 Litton Systems Canada Ltd filed Critical Litton Systems Canada Ltd
Publication of FR2707019A1 publication Critical patent/FR2707019A1/fr
Application granted granted Critical
Publication of FR2707019B1 publication Critical patent/FR2707019B1/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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/13363—Birefringent elements, e.g. for optical compensation
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/13363—Birefringent elements, e.g. for optical compensation
    • G02F1/133634—Birefringent elements, e.g. for optical compensation the refractive index Nz perpendicular to the element surface being different from in-plane refractive indices Nx and Ny, e.g. biaxial or with normal optical axis
    • 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
    • G02F1/13725—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 guest-host interaction
    • 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
    • G02F1/1396—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 the liquid crystal being selectively controlled between a twisted state and a non-twisted state, e.g. TN-LC cell
    • 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
    • G02F2413/00—Indexing scheme related to G02F1/13363, i.e. to birefringent elements, e.g. for optical compensation, characterised by the number, position, orientation or value of the compensation plates
    • G02F2413/02—Number of plates being 2
    • 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
    • G02F2413/00—Indexing scheme related to G02F1/13363, i.e. to birefringent elements, e.g. for optical compensation, characterised by the number, position, orientation or value of the compensation plates
    • G02F2413/07—All plates on one side of the LC cell
FR9407780A 1993-06-24 1994-06-24 Expired - Fee Related FR2707019B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002099642A CA2099642A1 (fr) 1993-06-24 1993-06-24 Afficheur a grand angle de visionnement a cristaux liquides nematiques en helice dopes avec un colorant utilisant des couches de retardement

Publications (2)

Publication Number Publication Date
FR2707019A1 FR2707019A1 (fr) 1994-12-30
FR2707019B1 true FR2707019B1 (fr) 1998-01-02

Family

ID=4151881

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9407780A Expired - Fee Related FR2707019B1 (fr) 1993-06-24 1994-06-24

Country Status (6)

Country Link
US (1) US5589965A (fr)
CA (1) CA2099642A1 (fr)
DE (1) DE4422218A1 (fr)
FR (1) FR2707019B1 (fr)
GB (1) GB2279466B (fr)
IT (1) IT1268078B1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3974217B2 (ja) * 1997-04-02 2007-09-12 シャープ株式会社 液晶表示パネルおよび液晶表示装置
KR100286762B1 (ko) 1997-06-27 2001-04-16 박종섭 액정 표시 소자
JPH11109335A (ja) * 1997-09-30 1999-04-23 Sharp Corp 液晶表示装置
KR100789864B1 (ko) 2006-11-02 2007-12-28 삼성정밀화학 주식회사 콜레스테릭 액정 고분자, 이를 포함하는 근적외선 차단필름과 근적외선 차단 필터, 및 상기 근적외선 차단 필름또는 필터를 구비하는 표시소자
CN111142300B (zh) * 2020-02-26 2022-09-27 上海天马微电子有限公司 显示装置、显示装置的制作方法以及控制方法
WO2022187949A1 (fr) * 2021-03-08 2022-09-15 Tigran Galstian Ensemble cellule à cristaux liquides et procédé d'amélioration de détection

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4946954A (fr) * 1972-09-11 1974-05-07
JPS5887538A (ja) * 1981-11-20 1983-05-25 Hitachi Ltd 液晶表示素子
JPS58143305A (ja) * 1982-02-22 1983-08-25 Hitachi Ltd 表示パネル
JPS58186723A (ja) * 1982-04-26 1983-10-31 Seiko Epson Corp 液晶表示装置
US4527864A (en) * 1983-03-29 1985-07-09 Xerox Corporation High contrast liquid crystal display devices
GB2171549B (en) * 1985-02-15 1988-05-18 Citizen Watch Co Ltd Liquid crystal display device
JPS62257123A (ja) * 1986-04-30 1987-11-09 Seiko Epson Corp 投射型表示装置
JPS6352118A (ja) * 1986-08-22 1988-03-05 Toyota Motor Corp 反射型液晶表示素子
JPH02925A (ja) * 1988-03-18 1990-01-05 Sharp Corp 液晶表示装置
JPH01304423A (ja) * 1988-06-02 1989-12-08 Seiko Instr Inc 液晶装置
JPH02143563A (ja) * 1988-11-25 1990-06-01 Fuji Electric Co Ltd サイリスタ
US5184236A (en) * 1990-08-10 1993-02-02 Casio Computer Co., Ltd. Twisted nematic liquid crystal display device with retardation plates having phase axis direction within 15° of alignment direction
US5150235A (en) * 1991-02-04 1992-09-22 Honeywell Inc. Apparatus for improving the angle of view in a liquid crystal display

Also Published As

Publication number Publication date
DE4422218A1 (de) 1995-01-05
ITTO940520A0 (it) 1994-06-23
GB2279466B (en) 1997-11-05
CA2099642A1 (fr) 1994-12-25
GB9412121D0 (en) 1994-08-10
IT1268078B1 (it) 1997-02-20
ITTO940520A1 (it) 1995-12-23
FR2707019A1 (fr) 1994-12-30
US5589965A (en) 1996-12-31
GB2279466A (en) 1995-01-04

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse