Pixel-gap controlled ferroelectric liquid crystal display device and its driving method
US5151803A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 3, 1990 |
| Grant date | Sep 29, 1992 |
| Priority date | — |
| Expiry date | Jan 3, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0209
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A liquid crystal display device and its driving method of the present invention have a voltage application scheme to control a stable condition of a gap between pixels, by applying a voltage to a liquid crystal panel in which ferroelectric liquid crystal is sandwiched between substrates each having a plurality of electrodes. It is possible to implement the black matrix conditions with a simple configuration without a light shielding layer by controlling the stable condition of the gap, to display a grey tone with a combination of pixels and a gap, or to raise the opening ratio by making the condition between adjacent pixels and a gap the same condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.