JPS5489759A - Liquid crystal light valve type projector - Google Patents
Liquid crystal light valve type projectorInfo
- Publication number
- JPS5489759A JPS5489759A JP15763377A JP15763377A JPS5489759A JP S5489759 A JPS5489759 A JP S5489759A JP 15763377 A JP15763377 A JP 15763377A JP 15763377 A JP15763377 A JP 15763377A JP S5489759 A JPS5489759 A JP S5489759A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- light valve
- deposited
- film
- glass substrate
- 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.)
- Pending
Links
Abstract
PURPOSE: To increase contrast, make images even, bright and long lasting and further make them suitable for color displaying by constituting the light valve of the construction wherein it is integrated with a photoconductive layer and yet modulating voltages are space periodically applied to the liquid crystal layer.
CONSTITUTION: Metal stripe form thin films 35 of 20μ pitch are formed on a glass substrate 34 deposited with a transparent electrode 33 and a dielectric mirror 38 composed of a CdS photoconductive thin film 36, CdTe light shield layer 37 and multilayer films of TiO2 and SiO2 is laminated thereon. A positive nematic liquid crystal layer 41 of homogeneous orientation is sealed by way of a spacer 42 between this substrate 34 and a glass substrate 40 deposited with a transparent conductive film 39, whereby the liquid crystal light valve is constituted. Two-dimensional images for writing are formed in the thin film 36 and the applied voltages having two dimensional distributions to be applied between the electrode 33 and film 39 are modulated spacially at a fixed period, whereby the diffracted light having specific angles is produced and is projected as output images by a schlieren projection system.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15763377A JPS5489759A (en) | 1977-12-27 | 1977-12-27 | Liquid crystal light valve type projector |
US06/237,471 US4389096A (en) | 1977-12-27 | 1981-02-23 | Image display apparatus of liquid crystal valve projection type |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15763377A JPS5489759A (en) | 1977-12-27 | 1977-12-27 | Liquid crystal light valve type projector |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5489759A true JPS5489759A (en) | 1979-07-17 |
Family
ID=15653975
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15763377A Pending JPS5489759A (en) | 1977-12-27 | 1977-12-27 | Liquid crystal light valve type projector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5489759A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6433520A (en) * | 1987-07-29 | 1989-02-03 | Canon Kk | Liquid crystal optical modulator |
JPH0282178U (en) * | 1988-12-13 | 1990-06-25 | ||
JPH049925A (en) * | 1990-04-27 | 1992-01-14 | Sharp Corp | Optical writing type liquid crystal display element |
-
1977
- 1977-12-27 JP JP15763377A patent/JPS5489759A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6433520A (en) * | 1987-07-29 | 1989-02-03 | Canon Kk | Liquid crystal optical modulator |
JPH0282178U (en) * | 1988-12-13 | 1990-06-25 | ||
JPH049925A (en) * | 1990-04-27 | 1992-01-14 | Sharp Corp | Optical writing type liquid crystal display element |
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