Liquid crystal display with photodetectors having polarizing plates mounted thereon and its correcting method
US7068333B2 · kind B2 · utility
14Cited by
3References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2001 |
| Grant date | Jun 27, 2006 |
| Priority date | — |
| Expiry date | Oct 16, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/145
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The quantity of light from a backlight is monitored by a first photodetector, and the environment on the part of a user is monitored by a second photodetector disposed in the rear of a liquid crystal panel, not on the front thereof. It is possible to exclude the influence of external light from the user side on the first photodetector which detects the quantity of light from the backlight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.