Optical modulation apparatus
US4802744A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 1987 |
| Grant date | Feb 7, 1989 |
| Priority date | — |
| Expiry date | Apr 10, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13439
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical modulation device includes: a first substrate having thereon a high-resistivity film having a sheet resistivity of 10.sup.3 .OMEGA./.quadrature. or above and a plurality of scanning electrode lines having a sheet resistivity of 10.sup.2 .OMEGA./.quadrature. or below and electrically connected to the high-resistivity film; a second substrate having thereon a plurality of data electrodes; and an optical modulation material disposed between the first and second substrates. At least one of the first and second substrates has thereon a pair of color filters of the same color disposed on both sides of at least one of the scanning electrode lines. The difference in height betwen the high-resistivity film and the scanning electrode lines is less than 1000 .ANG..
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.