JPS5559434A - Driving method of photo writing liquid crystal light bulb element - Google Patents
Driving method of photo writing liquid crystal light bulb elementInfo
- Publication number
- JPS5559434A JPS5559434A JP13191578A JP13191578A JPS5559434A JP S5559434 A JPS5559434 A JP S5559434A JP 13191578 A JP13191578 A JP 13191578A JP 13191578 A JP13191578 A JP 13191578A JP S5559434 A JPS5559434 A JP S5559434A
- Authority
- JP
- Japan
- Prior art keywords
- time
- liquid crystals
- light bulb
- liquid crystal
- crystal light
- 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
Abstract
PURPOSE: To make possible high-speed image writing by applying the specified voltage for s short time to the writing liquid crystal light bulb element at the starting of the driving means for said element.
CONSTITUTION: At the time of connecting a power source 8 to the photo writing liquid crystal light bulb 1 composed of glass substrates 2, 3, transparent electrodes 4, 5, of In2O3, CdS photoconductive layers 6, mixed cholesteric liquid crystals 7 to drive the same, the voltage above thr threshold voltage value at which the liquid crystals 7 cause phase transition is applied for a short time to the element 1 a fixed time before the time when the video information is first inputted at the time of turning the power source 8 again ON and inputting the new video information by an image pickup optical system 9 in order to rewrite the video information having been stored, whereby the liquid crystals 7 are shifted to a transparent nematic phase. This results in considerably reduced transition time of the liquid crystals 7 and reduced time necessary for rewriting of the video informatin.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13191578A JPS5559434A (en) | 1978-10-26 | 1978-10-26 | Driving method of photo writing liquid crystal light bulb element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13191578A JPS5559434A (en) | 1978-10-26 | 1978-10-26 | Driving method of photo writing liquid crystal light bulb element |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5559434A true JPS5559434A (en) | 1980-05-02 |
JPS6354164B2 JPS6354164B2 (en) | 1988-10-27 |
Family
ID=15069153
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13191578A Granted JPS5559434A (en) | 1978-10-26 | 1978-10-26 | Driving method of photo writing liquid crystal light bulb element |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5559434A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04318514A (en) * | 1991-01-31 | 1992-11-10 | Hughes Aircraft Co | Method of formed voltage pulse for operating polymer-scattered liquid crystal cell and optical valve using this method |
-
1978
- 1978-10-26 JP JP13191578A patent/JPS5559434A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04318514A (en) * | 1991-01-31 | 1992-11-10 | Hughes Aircraft Co | Method of formed voltage pulse for operating polymer-scattered liquid crystal cell and optical valve using this method |
Also Published As
Publication number | Publication date |
---|---|
JPS6354164B2 (en) | 1988-10-27 |
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