Semiconductor device for a space modulation matrix and method for driving a space modulation matrix
US5028969A · kind A · utility
14Cited by
1References
7Claims
0Family size
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Key dates
| Filing date | Sep 13, 1989 |
| Grant date | Jul 2, 1991 |
| Priority date | — |
| Expiry date | Sep 13, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/12
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A space modulation matrix is composed of semiconductor transmittivity modulation elements arranged in a matrix pattern. A transmittivity of the transmittivity modulation elements is changed by supplying a light or applying a voltage greater than a switching voltage of the transmittivity modulation elements to a selected number of the transmittivity modulation elements, so that a space modulation is provided on the space modulation matrix, and is renewed by any number of times.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.