Liquid-crystal display device and method for both displaying fast moving images and holding static images
US5548420A · kind A · utility
21Cited by
3References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 1994 |
| Grant date | Aug 20, 1996 |
| Priority date | — |
| Expiry date | Mar 15, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13781
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Light-controlling layer which contains at least a liquid crystal as a component is combined with photoconductive layer that is provided on the side of the layer closer to exposing unit and the impedance of which varies in accordance with the intensity of input light. Exposing unit exposes the photoconductive layer to write image into the light-controlling layer. Gradation control unit modulates the output light of the exposing unit on the basis of a signal indicative of the multi-level density of the image to be written, thereby controlling the light transmittance of the light-controlling layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.