DE2848581C2 - Speicherndes Flüssigkristall-Anzeigeelement - Google Patents
Speicherndes Flüssigkristall-AnzeigeelementInfo
- Publication number
- DE2848581C2 DE2848581C2 DE19782848581 DE2848581A DE2848581C2 DE 2848581 C2 DE2848581 C2 DE 2848581C2 DE 19782848581 DE19782848581 DE 19782848581 DE 2848581 A DE2848581 A DE 2848581A DE 2848581 C2 DE2848581 C2 DE 2848581C2
- Authority
- DE
- Germany
- Prior art keywords
- liquid crystal
- smectic
- display element
- cell
- 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.)
- Expired
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims description 27
- 239000004990 Smectic liquid crystal Substances 0.000 claims description 22
- 238000001816 cooling Methods 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 210000004027 cell Anatomy 0.000 description 17
- 239000000463 material Substances 0.000 description 12
- 239000000975 dye Substances 0.000 description 6
- 230000005684 electric field Effects 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 4
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical group [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000007740 vapor deposition Methods 0.000 description 3
- 239000000987 azo dye Substances 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000006060 molten glass Substances 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- CSQPODPWWMOTIY-UHFFFAOYSA-N 4-(4-octylphenyl)benzonitrile Chemical group C1=CC(CCCCCCCC)=CC=C1C1=CC=C(C#N)C=C1 CSQPODPWWMOTIY-UHFFFAOYSA-N 0.000 description 1
- 239000005224 4-Cyano-4'-n-octylbiphenyl Substances 0.000 description 1
- 239000001000 anthraquinone dye Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 210000002858 crystal cell Anatomy 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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 DE2848581A1 (de) | 1979-05-17 |
| DE2848581C2 true 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 (US20030204162A1-20031030-M00001.png) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4958916A (en) * | 1980-01-08 | 1990-09-25 | Clark Noel A | Surface stabilized ferroelectric liquid crystal devices |
| 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 |
| US4840463A (en) * | 1987-08-19 | 1989-06-20 | Clark Noel A | Surface stabilized ferroelectric liquid crystal devices |
| US5083855A (en) * | 1980-01-08 | 1992-01-28 | 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 |
| US5227905A (en) * | 1980-01-08 | 1993-07-13 | Clark Noel A | Surface stabilized ferroelectric liquid crystal devices |
| US4813767A (en) * | 1980-01-08 | 1989-03-21 | Clark Noel A | Surface stabilized ferroelectric liquid crystal devices |
| EP0032362B1 (en) * | 1980-01-10 | 1984-08-22 | Noel A. Clark | Chiral smectic liquid crystal electro-optical device and process of making the same |
| DE3275133D1 (en) * | 1981-04-06 | 1987-02-19 | Minnesota Mining & Mfg | Thermally addressed smectic liquid crystal device |
| GB8807090D0 (en) * | 1988-03-24 | 1988-04-27 | Secr Defence | Liquid crystal colour display |
| GB2236403B (en) * | 1988-03-24 | 1992-03-18 | Secr Defence | Liquid crystal colour displays |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2296197A1 (fr) * | 1974-12-24 | 1976-07-23 | Thomson Csf | Procede et dispositif utilisant un effet thermo-optique dans une couche mince en phase smectique pour la reproduction d'images avec memoire |
-
1978
- 1978-11-09 DE DE19782848581 patent/DE2848581C2/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2848581A1 (de) | 1979-05-17 |
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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 |