Apparatus and method for controlling display brightness in an image display device
US8004612B2 · kind B2 · utility
0Cited by
1References
16Claims
0Family size
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Key dates
| Filing date | Nov 21, 2006 |
| Grant date | Aug 23, 2011 |
| Priority date | — |
| Expiry date | May 25, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/16
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An inputted picture signal is stored in an image memory into which a picture signal for at least one frame period can be written, while rewriting the memory. At a plurality of timings within one frame period, an average brightness calculation unit calculates an average brightness from the picture signal written into the image memory, and a brightness control unit performs brightness control of the picture signal read from the image memory based on the calculated average brightness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.