Spatial light modulators
US5339090A · kind A · utility
118Cited by
10References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 10, 1992 |
| Grant date | Aug 16, 1994 |
| Priority date | — |
| Expiry date | Sep 10, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2300/0842
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A smart pixel is comprised by a chiral smectic liquid crystal light modulator (45) (ferro-electric or electroclinic) disposed on a semiconductor substrate and having associated therewith electronic circuitry (41-44) formed in the semiconductor substrate in particular a single crystal silicon VLSI substrate, which circuitry is such as to provide localised intelligence (electrical signal processing and conditioning, pointwise operations, logic functions) at the modulator. The circuitry may comprise photodetector/threshold circuitry (FIG. 7) or digital-to-analogue conversion (FIGS. 3 or 4), for example.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.