CH662239GA3 - - Google Patents

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Publication number
CH662239GA3
CH662239GA3 CH79186A CH79186A CH662239GA3 CH 662239G A3 CH662239G A3 CH 662239GA3 CH 79186 A CH79186 A CH 79186A CH 79186 A CH79186 A CH 79186A CH 662239G A3 CH662239G A3 CH 662239GA3
Authority
CH
Switzerland
Prior art keywords
plates
alignment
plate
mixture
plane
Prior art date
Application number
CH79186A
Other languages
French (fr)
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 filed Critical
Priority to CH79186A priority Critical patent/CH662239GA3/fr
Priority to KR870001131A priority patent/KR870008211A/en
Priority to DE8787101956T priority patent/DE3765797D1/en
Priority to EP87101956A priority patent/EP0235634B1/en
Priority to JP62041554A priority patent/JPH01112223A/en
Publication of CH662239GA3 publication Critical patent/CH662239GA3/fr
Priority to US07/271,408 priority patent/US4923286A/en

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
    • 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
    • G02F1/1393—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 birefringence of the liquid crystal being electrically controlled, e.g. ECB-, DAP-, HAN-, PI-LC 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
    • G02F1/137—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
    • G02F1/13787—Hybrid-alignment cells

Abstract

1. Multiplexable display cell using liquid crystals including : - two plane and parallel plates (10, 12) one (10) in front the other (12) at the rear ; - a frame (14) located between the plates which with the latter defines a chamber (15) ; - a mixture (26) of nematic liquid crystals and a chiralic compound within said chamber : - two networks (18, 20) of control electrodes each fixed to the inner surface of one of the plates ; - two alignment layers (22, 24) each covering one of the inner surfaces ; - a polariser (28) extending parallel to said surfaces located in front of the front plate (10) ; and - a reflector-diffuser located at the back of the alignment layer borne by the rear plate ; in which cell the helical pitch of the liquid crystal is greater than the distance between said plates (10, 12), characterized in that one (24) of the alignment layers induces a planar alignment orienting the molecules of the mixture (26) in a manner such that their optical axis forms an angle less than or equal to 10 degrees with the plane of the plate (12) adjacent to said layer and in that the other of said alignment layers induces a homeotropic alignment orienting the molecules of the mixture (26) in a manner such that their optical axis forms an angle less than or equal to 10 degrees with an axis perpendicular to the plane of the plate (10) adjacent to said other layer.
CH79186A 1986-02-27 1986-02-27 CH662239GA3 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CH79186A CH662239GA3 (en) 1986-02-27 1986-02-27
KR870001131A KR870008211A (en) 1986-02-27 1987-02-11 Display cell
DE8787101956T DE3765797D1 (en) 1986-02-27 1987-02-12 DISPLAY CELL.
EP87101956A EP0235634B1 (en) 1986-02-27 1987-02-12 Display cell
JP62041554A JPH01112223A (en) 1986-02-27 1987-02-26 Multiplex drivable liquid crystal display cell
US07/271,408 US4923286A (en) 1986-02-27 1988-11-14 Display cell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH79186A CH662239GA3 (en) 1986-02-27 1986-02-27

Publications (1)

Publication Number Publication Date
CH662239GA3 true CH662239GA3 (en) 1987-09-30

Family

ID=4195265

Family Applications (1)

Application Number Title Priority Date Filing Date
CH79186A CH662239GA3 (en) 1986-02-27 1986-02-27

Country Status (6)

Country Link
US (1) US4923286A (en)
EP (1) EP0235634B1 (en)
JP (1) JPH01112223A (en)
KR (1) KR870008211A (en)
CH (1) CH662239GA3 (en)
DE (1) DE3765797D1 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0812360B2 (en) * 1989-12-21 1996-02-07 スタンレー電気株式会社 Liquid crystal display device and driving method thereof
WO1995020180A1 (en) * 1994-01-25 1995-07-27 Fergason James L Display system and method
US5717422A (en) * 1994-01-25 1998-02-10 Fergason; James L. Variable intensity high contrast passive display
US5532854A (en) * 1994-01-25 1996-07-02 Fergason; James L. Folded variable birefringerence zeroth order hybrid aligned liquid crystal apparatus
US5541745A (en) * 1994-01-25 1996-07-30 Fergason; James L. Illumination system for a display using cholesteric liquid crystal reflectors
US5519524A (en) * 1994-07-05 1996-05-21 Fergason; James L. Active matrix liquid crystal having a counterelectrode substrate extended and connected to an external circuit
US6184969B1 (en) * 1994-10-25 2001-02-06 James L. Fergason Optical display system and method, active and passive dithering using birefringence, color image superpositioning and display enhancement
TW329500B (en) 1995-11-14 1998-04-11 Handotai Energy Kenkyusho Kk Electro-optical device
JPH09146108A (en) * 1995-11-17 1997-06-06 Semiconductor Energy Lab Co Ltd Liquid crystal display device and its driving method
JP3708620B2 (en) * 1996-03-01 2005-10-19 株式会社半導体エネルギー研究所 Active matrix liquid crystal electro-optical device
GB2314642A (en) * 1996-06-26 1998-01-07 Sharp Kk Twisted nematic liquid crystal device
GB2314641A (en) * 1996-06-26 1998-01-07 Sharp Kk Liquid crystal devices
TW522273B (en) * 1998-08-07 2003-03-01 Matsushita Electric Ind Co Ltd Reflection type liquid crystal display element
AU2001256641A1 (en) 2000-05-17 2001-11-26 E-Magin Display Technologies Ltd. Electronic billboard with reflective color liquid crystal displays
US8243004B2 (en) 2003-03-10 2012-08-14 Fergason Patent Properties, Llc Apparatus and method for preparing, storing, transmitting and displaying images
US20050091939A1 (en) * 2003-09-09 2005-05-05 Hillstrom Brian J. Door assembly for menu board
TWI383176B (en) * 2008-10-20 2013-01-21 Univ Nat Chiao Tung The beam splitter apparatus of electromagnetic waves
JP2012008363A (en) * 2010-06-25 2012-01-12 Sony Chemical & Information Device Corp Method for manufacturing wavelength plate

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2152757A1 (en) * 1971-09-09 1973-04-27 Sperry Rand Corp
GB2023865A (en) * 1978-06-22 1980-01-03 Ebauches Sa Guest-host liquid crystal display
JPS5573023A (en) * 1978-11-27 1980-06-02 Seiko Epson Corp Liquid crystal color display body
JPS5669735A (en) * 1979-11-09 1981-06-11 Anzen Dengu Kk Method of manufacturing overheat preventing unit
US4418487A (en) * 1982-02-02 1983-12-06 Strahan Travis R Mounting bracket for gunsight
EP0131216A2 (en) * 1983-07-12 1985-01-16 BBC Brown Boveri AG Liquid crystal display

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2181115A5 (en) * 1972-04-17 1973-11-30 Thomson Csf
US3814501A (en) * 1972-12-04 1974-06-04 Rca Corp Liquid-crystal display device and method of making
US3837729A (en) * 1973-05-14 1974-09-24 Hoffmann La Roche Liquid crystal display
US3912369A (en) * 1974-07-02 1975-10-14 Gen Electric Single polarizer reflective liquid crystal display
GB1506570A (en) * 1975-07-08 1978-04-05 Secr Defence Liquid crystal devices
US4042294A (en) * 1976-03-17 1977-08-16 Micro Display Systems Inc Illuminated electro-optical display apparatus
GB1571496A (en) * 1976-05-04 1980-07-16 Standard Telephones Cables Ltd Cholesteric liquid crystal cells
CH600367A5 (en) * 1976-08-10 1978-06-15 Bbc Brown Boveri & Cie
US4250503A (en) * 1977-07-26 1981-02-10 National Research Development Corporation Apparatus for displaying waveforms on a matrix display
CH620774A5 (en) * 1978-06-22 1980-12-15 Ebauches Sa
JPS5630118A (en) * 1979-08-21 1981-03-26 Sharp Corp Liquid crystal display element
JPS5683718A (en) * 1979-12-13 1981-07-08 Asahi Glass Co Ltd Liquid crystal display element
US4418102A (en) * 1981-05-14 1983-11-29 Eaton Corporation Liquid crystal displays having improved hermetic seal
US4427978A (en) * 1981-08-31 1984-01-24 Marshall Williams Multiplexed liquid crystal display having a gray scale image
FR2526177A1 (en) * 1982-04-28 1983-11-04 Centre Nat Rech Scient IMPROVEMENTS TO OPTICAL CELLS USING LIQUID CRYSTALS
JPS5969735A (en) * 1982-10-15 1984-04-20 Seikosha Co Ltd Liquid crystal display device
US4566758A (en) * 1983-05-09 1986-01-28 Tektronix, Inc. Rapid starting, high-speed liquid crystal variable optical retarder

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2152757A1 (en) * 1971-09-09 1973-04-27 Sperry Rand Corp
GB2023865A (en) * 1978-06-22 1980-01-03 Ebauches Sa Guest-host liquid crystal display
JPS5573023A (en) * 1978-11-27 1980-06-02 Seiko Epson Corp Liquid crystal color display body
JPS5669735A (en) * 1979-11-09 1981-06-11 Anzen Dengu Kk Method of manufacturing overheat preventing unit
US4418487A (en) * 1982-02-02 1983-12-06 Strahan Travis R Mounting bracket for gunsight
EP0131216A2 (en) * 1983-07-12 1985-01-16 BBC Brown Boveri AG Liquid crystal display

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENTS ABSTRACTS OF JAPAN, vol. 4, no. 118 (P-24)[600], 22 août 1980; & JP-A-55 73 023 (SUWA SEIKOSHA K.K.) *
PATENTS ABSTRACTS OF JAPAN, vol. 4, no. 184 (P-41)[666], 18 décembre 1980; & JP-A-55 127 519 (SUWA SEIKOSHA K.K.) *
PATENTS ABSTRACTS OF JAPAN, vol. 8, no. 175 (P-294)[1612], 11 août 1984; & JP-A-56 69 735 (SEIKOUSHIYA) *

Also Published As

Publication number Publication date
EP0235634A1 (en) 1987-09-09
KR870008211A (en) 1987-09-25
DE3765797D1 (en) 1990-12-06
US4923286A (en) 1990-05-08
JPH01112223A (en) 1989-04-28
EP0235634B1 (en) 1990-10-31

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