Liquid-crystal display method and information-processing apparatus applying this method
US3988056A · kind A · utility
13Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 18, 1975 |
| Grant date | Oct 26, 1976 |
| Priority date | — |
| Expiry date | Nov 18, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F3/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention concerns liquid-crystal display methods and their application to radar screens. The invention provides a method which consists in thermally writing on a layer of liquid-crystal two successive patterns which are combined in accordance with a law designated A .times. B in Boolean algebra by the way of a reorienting biasing voltage applied during the writing in of the second of said pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.