Liquid crystal tilt servo apparatus
US6552984B1 · kind B1 · utility
3Cited by
10References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2000 |
| Grant date | Apr 22, 2003 |
| Priority date | — |
| Expiry date | Apr 10, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/0956
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A liquid-crystal tilt servo apparatus in which a reference voltage generating circuit is unnecessary for a liquid-crystal driving circuit and which has a simple circuit configuration and high reliability is realized. The liquid-crystal driving circuit has a DC removing circuit for removing a DC component of a driving signal generated on the basis of a tilt error correction control signal from a control unit and supplying a resultant signal to a liquid crystal device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.