DE2848581A1 - Speicherndes fluessigkristall-anzeigeelement - Google Patents
Speicherndes fluessigkristall-anzeigeelementInfo
- Publication number
- DE2848581A1 DE2848581A1 DE19782848581 DE2848581A DE2848581A1 DE 2848581 A1 DE2848581 A1 DE 2848581A1 DE 19782848581 DE19782848581 DE 19782848581 DE 2848581 A DE2848581 A DE 2848581A DE 2848581 A1 DE2848581 A1 DE 2848581A1
- Authority
- DE
- Germany
- Prior art keywords
- liquid crystal
- crystal
- display element
- smectic
- crystal display
- 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.)
- Granted
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
- G02F1/132—Thermal activation of liquid crystals exhibiting a thermo-optic effect
-
- 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
- G02F1/137—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
- G02F1/13781—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 using smectic liquid crystals
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)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4682177A GB1569688A (en) | 1977-11-10 | 1977-11-10 | Smectic display cell |
GB4682178 | 1978-05-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2848581A1 true DE2848581A1 (de) | 1979-05-17 |
DE2848581C2 DE2848581C2 (de) | 1987-01-29 |
Family
ID=26265912
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19782848581 Expired DE2848581C2 (de) | 1977-11-10 | 1978-11-09 | Speicherndes Flüssigkristall-Anzeigeelement |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2848581C2 (US06633600-20031014-M00021.png) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0032362A1 (en) * | 1980-01-10 | 1981-07-22 | Noel A. Clark | Chiral smectic liquid crystal electro-optical device and process of making the same |
EP0063447A1 (en) * | 1981-04-06 | 1982-10-27 | Minnesota Mining And Manufacturing Company | Thermally addressed smectic liquid crystal device |
WO1989009426A1 (en) * | 1988-03-24 | 1989-10-05 | The Secretary Of State For Defence In Her Britanni | Liquid crystal colour displays |
GB2236403A (en) * | 1988-03-24 | 1991-04-03 | Secr Defence | Liquid crystal colour displays |
USRE34942E (en) * | 1980-01-08 | 1995-05-16 | Clark Noel A | Surface stabilized ferroelectric liquid crystal devices with means for aligning LC molecules at Ω(α) from normal to the means |
USRE34950E (en) * | 1980-01-08 | 1995-05-23 | Clark Noel A | Surface stabilized ferroelectric liquid crystal devices with means for aligning LC molecules at Ω(α) from normal to the means |
USRE34949E (en) * | 1980-01-08 | 1995-05-23 | Clark Noel A | Surface stabilized ferroelectric liquid crystal devices |
USRE34966E (en) * | 1980-01-08 | 1995-06-13 | Clark Noel A | Surface stabilized ferroelectric liquid crystal devices with LC molecules aligned at angle Ω(α) from normal to substrates |
USRE34967E (en) * | 1980-01-08 | 1995-06-13 | Clark Noel A | Surface stabilized ferroelectric liquid crystal devices with plural orientation states of different colors or separated by domain walls |
USRE34973E (en) * | 1980-01-08 | 1995-06-20 | Clark Noel A | Surface stabilized ferroelectric liquid crystal devices with total reflection in one state and transmission in another state |
US5555117A (en) * | 1980-01-08 | 1996-09-10 | Clark; Noel A. | Surface stabilized ferroelectric liquid crystal devices |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2558409A1 (de) * | 1974-12-24 | 1976-07-08 | Thomson Csf | Verfahren zur wiedergabe von bildern und vorrichtung zur durchfuehrung des verfahrens |
-
1978
- 1978-11-09 DE DE19782848581 patent/DE2848581C2/de not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2558409A1 (de) * | 1974-12-24 | 1976-07-08 | Thomson Csf | Verfahren zur wiedergabe von bildern und vorrichtung zur durchfuehrung des verfahrens |
Non-Patent Citations (2)
Title |
---|
US-B.: Kmetz, V. Willisen: Nonemissive Electrooptic Displays, New York 1976, Plenum Press, S.27-29,36,37,134-136,316 * |
US-Z.: Appl.Phys.Letters Bd.19, 1971, S.241-242 * |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE34966E (en) * | 1980-01-08 | 1995-06-13 | Clark Noel A | Surface stabilized ferroelectric liquid crystal devices with LC molecules aligned at angle Ω(α) from normal to substrates |
USRE34949E (en) * | 1980-01-08 | 1995-05-23 | Clark Noel A | Surface stabilized ferroelectric liquid crystal devices |
US5555111A (en) * | 1980-01-08 | 1996-09-10 | Clark; Noel A. | Surface stabilized ferroelectric liquid crystal devices with dielectric torques greater than ferroelectric torques |
US5555117A (en) * | 1980-01-08 | 1996-09-10 | Clark; Noel A. | Surface stabilized ferroelectric liquid crystal devices |
USRE34973E (en) * | 1980-01-08 | 1995-06-20 | Clark Noel A | Surface stabilized ferroelectric liquid crystal devices with total reflection in one state and transmission in another state |
USRE34950E (en) * | 1980-01-08 | 1995-05-23 | Clark Noel A | Surface stabilized ferroelectric liquid crystal devices with means for aligning LC molecules at Ω(α) from normal to the means |
USRE34967E (en) * | 1980-01-08 | 1995-06-13 | Clark Noel A | Surface stabilized ferroelectric liquid crystal devices with plural orientation states of different colors or separated by domain walls |
USRE34942E (en) * | 1980-01-08 | 1995-05-16 | Clark Noel A | Surface stabilized ferroelectric liquid crystal devices with means for aligning LC molecules at Ω(α) from normal to the means |
EP0032362A1 (en) * | 1980-01-10 | 1981-07-22 | Noel A. Clark | Chiral smectic liquid crystal electro-optical device and process of making the same |
EP0063447A1 (en) * | 1981-04-06 | 1982-10-27 | Minnesota Mining And Manufacturing Company | Thermally addressed smectic liquid crystal device |
US5189534A (en) * | 1988-03-24 | 1993-02-23 | The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland | Liquid crystal color displays which cool from isotropic to twisted nematic to smectic |
GB2236403B (en) * | 1988-03-24 | 1992-03-18 | Secr Defence | Liquid crystal colour displays |
GB2236403A (en) * | 1988-03-24 | 1991-04-03 | Secr Defence | Liquid crystal colour displays |
WO1989009426A1 (en) * | 1988-03-24 | 1989-10-05 | The Secretary Of State For Defence In Her Britanni | Liquid crystal colour displays |
Also Published As
Publication number | Publication date |
---|---|
DE2848581C2 (de) | 1987-01-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OAP | Request for examination filed | ||
OD | Request for examination | ||
8125 | Change of the main classification |
Ipc: G09F 9/35 |
|
8181 | Inventor (new situation) |
Free format text: CROSSLAND, WILLIAM ALDEN, HARLOW, ESSEX, GB MORISSY, JOSEPH, HOURIGAN, DUNMOW, ESSEX, GB COATES, DAVID, BISHOPS STORTFORD, HERTFORDSHIRE, GB |
|
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: STC PLC, LONDON, GB |
|
8328 | Change in the person/name/address of the agent |
Free format text: WALLACH, C., DIPL.-ING. KOCH, G., DIPL.-ING. HAIBACH, T., DIPL.-PHYS. DR.RER.NAT. FELDKAMP, R., DIPL.-ING., PAT.-ANWAELTE, 8000 MUENCHEN |
|
8327 | Change in the person/name/address of the patent owner |
Owner name: NORTHERN TELECOM LTD., MONTREAL, QUEBEC, CA |
|
8328 | Change in the person/name/address of the agent |
Free format text: KOCH, G., DIPL.-ING. HAIBACH, T., DIPL.-PHYS. DR.RER.NAT. FELDKAMP, R., DIPL.-ING., PAT.-ANWAELTE, 80339 MUENCHEN |