Liquid crystal display
US8294738B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 16, 2009 |
| Grant date | Oct 23, 2012 |
| Priority date | — |
| Expiry date | Jul 2, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/144
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
There is provided a liquid crystal display. A liquid crystal display panel displays an image. An external light sensor senses a color temperature of external light around the liquid crystal display panel. The output luminance of a backlight is controlled in response to an adjustment dimming signal which is varied according to an input image. A gamma curve adjustment circuit restores an original color of the display image irrespective of a change in the viewing environments by modulating input digital video data based on the color temperature of the external light or a relative maximum white luminance for the adjustment dimming signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.