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
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
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Electric Clocks (AREA)
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.
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 |
EP87101956A EP0235634B1 (en) | 1986-02-27 | 1987-02-12 | Display cell |
DE8787101956T DE3765797D1 (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)
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 |
US5532854A (en) * | 1994-01-25 | 1996-07-02 | Fergason; James L. | Folded variable birefringerence zeroth order hybrid aligned liquid crystal apparatus |
AU1733195A (en) * | 1994-01-25 | 1995-08-08 | James L. Fergason | Display system and method |
US5717422A (en) * | 1994-01-25 | 1998-02-10 | Fergason; James L. | Variable intensity high contrast passive display |
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 |
EP1290541A1 (en) | 2000-05-17 | 2003-03-12 | 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 |
CA2480927A1 (en) * | 2003-09-09 | 2005-03-09 | Marketing Displays, Inc. | 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)
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)
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 |
-
1986
- 1986-02-27 CH CH79186A patent/CH662239GA3/fr unknown
-
1987
- 1987-02-11 KR KR870001131A patent/KR870008211A/en not_active Application Discontinuation
- 1987-02-12 EP EP87101956A patent/EP0235634B1/en not_active Expired - Lifetime
- 1987-02-12 DE DE8787101956T patent/DE3765797D1/en not_active Expired - Lifetime
- 1987-02-26 JP JP62041554A patent/JPH01112223A/en active Pending
-
1988
- 1988-11-14 US US07/271,408 patent/US4923286A/en not_active Expired - Fee Related
Patent Citations (6)
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)
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 |
DE3765797D1 (en) | 1990-12-06 |
US4923286A (en) | 1990-05-08 |
JPH01112223A (en) | 1989-04-28 |
EP0235634B1 (en) | 1990-10-31 |
KR870008211A (en) | 1987-09-25 |
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