FR2275794B1 - - Google Patents
Info
- Publication number
- FR2275794B1 FR2275794B1 FR7516836A FR7516836A FR2275794B1 FR 2275794 B1 FR2275794 B1 FR 2275794B1 FR 7516836 A FR7516836 A FR 7516836A FR 7516836 A FR7516836 A FR 7516836A FR 2275794 B1 FR2275794 B1 FR 2275794B1
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
- C09K19/58—Dopants or charge transfer agents
- C09K19/586—Optically active dopants; chiral dopants
Landscapes
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Liquid Crystal Substances (AREA)
- Liquid Crystal (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6234374A JPS5348196B2 (US20020051482A1-20020502-M00012.png) | 1974-05-31 | 1974-05-31 | |
| JP6528674A JPS5348197B2 (US20020051482A1-20020502-M00012.png) | 1974-06-07 | 1974-06-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2275794A1 FR2275794A1 (fr) | 1976-01-16 |
| FR2275794B1 true FR2275794B1 (US20020051482A1-20020502-M00012.png) | 1977-04-15 |
Family
ID=26403403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7516836A Granted FR2275794A1 (fr) | 1974-05-31 | 1975-05-29 | Dispositif electro-optique a cristaux liquides |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3977769A (US20020051482A1-20020502-M00012.png) |
| FR (1) | FR2275794A1 (US20020051482A1-20020502-M00012.png) |
| GB (1) | GB1508029A (US20020051482A1-20020502-M00012.png) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1576106A (en) * | 1976-11-25 | 1980-10-01 | Secr Defence | Temperature compensated liquid crystal devices |
| US4385844A (en) * | 1977-04-07 | 1983-05-31 | Becton, Dickinson And Company | Novel compositions, devices and method |
| DE2827471C2 (de) * | 1978-06-22 | 1982-09-02 | Siemens AG, 1000 Berlin und 8000 München | Flüssigkristallzelle mit einer induzierten cholesterischen Phase |
| US4380008A (en) * | 1978-09-29 | 1983-04-12 | Hitachi, Ltd. | Method of driving a matrix type phase transition liquid crystal display device to obtain a holding effect and improved response time for the erasing operation |
| DE3170701D1 (en) * | 1980-07-16 | 1985-07-04 | Minnesota Mining & Mfg | Helichromic compounds and displays |
| US4394070A (en) * | 1980-07-16 | 1983-07-19 | Minnesota Mining And Manufacturing Company | Helichromic compounds and displays |
| DE3140078A1 (de) * | 1980-10-08 | 1982-04-22 | Kabushiki Kaisha Suwa Seikosha, Tokyo | Optische fluessigkristalleinrichtung und drucker, der eine solche optische einrichtung als lichtventil benutzt |
| US4514045A (en) * | 1981-06-22 | 1985-04-30 | Minnesota Mining And Manufacturing Company | Helichromic-smectic liquid crystal compositions and display cells |
| JPS61183256A (ja) * | 1985-02-09 | 1986-08-15 | Chisso Corp | 光学活性アゾキシ化合物及び液晶組成物 |
| US5604616A (en) * | 1995-04-03 | 1997-02-18 | Motorola, Inc. | Dual function electro-optical display device exhibiting a bistable image or a fugitive image depending the applied voltage |
| KR20020079442A (ko) * | 2001-04-13 | 2002-10-19 | 미츠비시 가스 가가쿠 가부시키가이샤 | 광학 활성화합물 및 그것을 함유하는 액정조성물 |
| CN104503145B (zh) * | 2014-12-24 | 2018-01-09 | 深圳市华星光电技术有限公司 | 一种提高正负性混合液晶响应时间的方法和装置 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS523560B1 (US20020051482A1-20020502-M00012.png) * | 1971-06-02 | 1977-01-28 | ||
| JPS5114433B1 (US20020051482A1-20020502-M00012.png) * | 1971-07-29 | 1976-05-10 | ||
| US3806230A (en) * | 1971-12-14 | 1974-04-23 | Xerox Corp | Liquid crystal imaging system having optical storage capabilities |
| US3819531A (en) * | 1972-02-24 | 1974-06-25 | Xerox Corp | Liquid crystal compositions |
| US3891307A (en) * | 1973-03-20 | 1975-06-24 | Matsushita Electric Ind Co Ltd | Phase control of the voltages applied to opposite electrodes for a cholesteric to nematic phase transition display |
-
1975
- 1975-04-22 US US05/570,375 patent/US3977769A/en not_active Expired - Lifetime
- 1975-05-23 GB GB22931/75A patent/GB1508029A/en not_active Expired
- 1975-05-29 FR FR7516836A patent/FR2275794A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2275794A1 (fr) | 1976-01-16 |
| GB1508029A (en) | 1978-04-19 |
| US3977769A (en) | 1976-08-31 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |