DE3782008D1 - Fluessigkristall-projektionsanzeige mit verbessertem kontrast. - Google Patents
Fluessigkristall-projektionsanzeige mit verbessertem kontrast.Info
- Publication number
- DE3782008D1 DE3782008D1 DE8787202295T DE3782008T DE3782008D1 DE 3782008 D1 DE3782008 D1 DE 3782008D1 DE 8787202295 T DE8787202295 T DE 8787202295T DE 3782008 T DE3782008 T DE 3782008T DE 3782008 D1 DE3782008 D1 DE 3782008D1
- Authority
- DE
- Germany
- Prior art keywords
- liquid crystal
- projection display
- crystal projection
- improved contrast
- contrast
- 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 - Lifetime
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/60—Projection screens characterised by the nature of the surface
- G03B21/604—Polarised screens
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US93487186A | 1986-11-25 | 1986-11-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3782008D1 true DE3782008D1 (de) | 1992-11-05 |
DE3782008T2 DE3782008T2 (de) | 1993-04-22 |
Family
ID=25466210
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8787202295T Expired - Fee Related DE3782008T2 (de) | 1986-11-25 | 1987-11-24 | Fluessigkristall-projektionsanzeige mit verbessertem kontrast. |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0270169B1 (de) |
JP (1) | JPS63163820A (de) |
CN (1) | CN1010806B (de) |
AU (1) | AU8147687A (de) |
DE (1) | DE3782008T2 (de) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4928123A (en) * | 1987-06-16 | 1990-05-22 | Sharp Kabushiki Kaisha | Projection type liquid crystal display device |
JP2601083B2 (ja) * | 1991-11-25 | 1997-04-16 | カシオ計算機株式会社 | 投影型ディスプレイ |
FR2700772A1 (fr) * | 1993-01-27 | 1994-07-29 | Michelin Rech Tech | Composition, susceptible de donner des fibres ou des films, à base de formiate de cellulose. |
CA2197999A1 (en) * | 1994-08-19 | 1996-02-29 | Hanneke Boerstoel | Process for making cellulose extrudates |
EP0777768B1 (de) * | 1994-08-19 | 1999-06-02 | Akzo Nobel N.V. | Zelluloselösungen und hieraus hergestellte produkte |
KR100394283B1 (ko) * | 1994-12-22 | 2003-11-28 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 오버헤드프로젝터를갖는프리젠테이션시스템 |
FR2737735A1 (fr) * | 1995-08-10 | 1997-02-14 | Michelin Rech Tech | Fibres cellulosiques a allongement rupture ameliore |
NL1001692C2 (nl) * | 1995-11-20 | 1997-05-21 | Akzo Nobel Nv | Werkwijze voor de bereiding van geregenereerde cellulose filamenten. |
DK0880609T3 (da) * | 1996-02-14 | 2000-08-28 | Akzo Nobel Nv | Cellulosefibre og -filamenter med høj brudforlængelse |
FR2759094B1 (fr) * | 1997-02-06 | 1999-03-05 | Michelin Rech Tech | Fibres cellulosiques d'origine cristal-liquide ayant un allongement a la rupture important ; procedes pour les obtenir |
CN105652564B (zh) * | 2016-01-26 | 2017-07-07 | 京东方科技集团股份有限公司 | 显示系统及显示方法 |
TWI680326B (zh) * | 2018-09-28 | 2019-12-21 | 友達光電股份有限公司 | 顯示器 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1120093A (en) * | 1965-06-29 | 1968-07-17 | Westinghouse Electric Corp | Display system |
FR2212559B1 (de) * | 1972-12-29 | 1977-08-05 | Thomson Csf | |
IL48536A0 (en) * | 1975-01-06 | 1976-01-30 | Hughes Aircraft Co | Photo-activated liquid crystal field effect light valve display device |
JPS6138976A (ja) * | 1984-07-27 | 1986-02-25 | セイコーエプソン株式会社 | 投射型表示装置 |
-
1987
- 1987-11-22 CN CN87104122A patent/CN1010806B/zh not_active Expired
- 1987-11-23 AU AU81476/87A patent/AU8147687A/en not_active Abandoned
- 1987-11-24 DE DE8787202295T patent/DE3782008T2/de not_active Expired - Fee Related
- 1987-11-24 JP JP62294269A patent/JPS63163820A/ja active Pending
- 1987-11-24 EP EP87202295A patent/EP0270169B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
AU8147687A (en) | 1988-05-26 |
EP0270169A1 (de) | 1988-06-08 |
JPS63163820A (ja) | 1988-07-07 |
CN87101153A (zh) | 1988-07-06 |
EP0270169B1 (de) | 1992-09-30 |
CN1010806B (zh) | 1990-12-12 |
DE3782008T2 (de) | 1993-04-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: PHILIPS ELECTRONICS NORTH AMERICA CORP., NEW YORK, |
|
8328 | Change in the person/name/address of the agent |
Free format text: PEUCKERT, H., DIPL.-ING., PAT.-ASS., 20097 HAMBURG |
|
8339 | Ceased/non-payment of the annual fee |