JPS6468732A - Driving method for optical modulating element - Google Patents
Driving method for optical modulating elementInfo
- Publication number
- JPS6468732A JPS6468732A JP22515987A JP22515987A JPS6468732A JP S6468732 A JPS6468732 A JP S6468732A JP 22515987 A JP22515987 A JP 22515987A JP 22515987 A JP22515987 A JP 22515987A JP S6468732 A JPS6468732 A JP S6468732A
- Authority
- JP
- Japan
- Prior art keywords
- stable state
- voltage
- image
- voltage application
- picture elements
- 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 obtain the driving method matching with gradation representation by applying a 1st voltage which orients respective picture elements in an area where an image is written in a 1st stable state, a 2nd voltage which orients them to a 2nd stable state, and a 3rd voltage for writing an image in the 1st stable state again. CONSTITUTION:When a ferroelectric liquid crystal cell 11 of such matrix picture element structure that bistable ferroelectric liquid crystal is sandwiched between a scanning electrode group 12 and a signal electrode group 13 is driven, three steps are set for voltage application. In 1st voltage application, an entire surface writing step for orienting picture elements A-C including the image uniformly into the 1st stable state is carried out and in 2nd voltage application, an erasure step for inverting those picture elements A-C into the 2nd stable step is performed. Lastly, an image writing step for orienting the desired picture element A in the 1st stable state again is carried out in 3rd voltage application. Consequently, the 'light' or 'dark' state is not inverted at the time of fast switching and this method is suitable to the gradation representation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22515987A JPS6468732A (en) | 1987-09-10 | 1987-09-10 | Driving method for optical modulating element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22515987A JPS6468732A (en) | 1987-09-10 | 1987-09-10 | Driving method for optical modulating element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6468732A true JPS6468732A (en) | 1989-03-14 |
Family
ID=16824867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22515987A Pending JPS6468732A (en) | 1987-09-10 | 1987-09-10 | Driving method for optical modulating element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6468732A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5200846A (en) * | 1991-02-16 | 1993-04-06 | Semiconductor Energy Laboratory Co., Ltd. | Electro-optical device having a ratio controlling means for providing gradated display levels |
| US6195139B1 (en) | 1992-03-04 | 2001-02-27 | Semiconductor Energy Laboratory Co., Ltd. | Electro-optical device |
-
1987
- 1987-09-10 JP JP22515987A patent/JPS6468732A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5200846A (en) * | 1991-02-16 | 1993-04-06 | Semiconductor Energy Laboratory Co., Ltd. | Electro-optical device having a ratio controlling means for providing gradated display levels |
| US7479939B1 (en) | 1991-02-16 | 2009-01-20 | Semiconductor Energy Laboratory Co., Ltd. | Electro-optical device |
| US6195139B1 (en) | 1992-03-04 | 2001-02-27 | Semiconductor Energy Laboratory Co., Ltd. | Electro-optical device |
| US6618105B2 (en) | 1992-03-04 | 2003-09-09 | Semiconductor Energy Laboratory Co., Ltd. | Electro-optical device |
| US7123320B2 (en) | 1992-03-04 | 2006-10-17 | Semiconductor Energy Laboratory Co., Ltd. | Electro-optical device |
| US8035773B2 (en) | 1992-03-04 | 2011-10-11 | Semiconductor Energy Laboratory Co., Ltd. | Electro-optical device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0726556A3 (en) | Liquid crystal apparatus | |
| EP0316774A3 (en) | Liquid crystal apparatus | |
| DE69225199T2 (en) | Liquid crystal display device | |
| EP0378293A3 (en) | Liquid crystal display device and its driving method | |
| CA2057965A1 (en) | Method of driving a matrix-type liquid crystal display device | |
| US4846560A (en) | Liquid crystal device with ferroelectric liquid crystal oriented at non-pixel portions | |
| DE68922159D1 (en) | Display device. | |
| EP0244804A3 (en) | A multiplexed driving method for an optical switching element employing ferroelectric liquid crystal | |
| EP0306203A3 (en) | A method of addressing a ferroelectric liquid crystal display | |
| KR880002118A (en) | Display driving device and driving method thereof | |
| EP0469531A3 (en) | Liquid crystal apparatus and driving method therefor | |
| US5381254A (en) | Method for driving optical modulation device | |
| JPS6468732A (en) | Driving method for optical modulating element | |
| DE69219644D1 (en) | Liquid crystal display device | |
| JPS644721A (en) | Active device | |
| EP0221613B1 (en) | Low drive voltage display device | |
| JPS61243429A (en) | Driving method for optical modulating element | |
| EP0344753A3 (en) | Liquid crystal apparatus and driving method therefor | |
| JPS6474533A (en) | Method for driving active matrix panel | |
| JPS6432237A (en) | Driving method for liquid crystal display element | |
| JPS56155921A (en) | Liquid crystal display device | |
| EP0864911A3 (en) | Ferroelectric liquid crystal electro-optic apparatus and manufacturing method thereof | |
| JPS54106194A (en) | Driving method for matrix type liquid crystal display unit | |
| JPS6415722A (en) | Liquid crystal display device | |
| JPS6459213A (en) | Shutter array element and its driving method |