Power consumption reduction device, visibility improvement device, self-luminous display apparatus, image processing device, electronic equipment, power consumption reduction method, visibility improvement method, and computer program
US8253718B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2007 |
| Grant date | Aug 28, 2012 |
| Priority date | — |
| Expiry date | Jun 13, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/144
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A power consumption reduction device includes a region-adaptive gray level conversion unit wherein the gray level conversion unit is operable to convert n1 bits of gray level information for a low gray level region into m1 (<n1) bits of gray level information, further operable to convert n2 bits of gray level information for an intermediate gray level region into m2 (≦n2) bits of gray level information, and still further operable to convert n3 bits of gray level information for a high gray level region into m3 (<n3) bits of gray level information, and the gray level conversion unit converts a gray level of an input video signal so that m1≦m2, m3≦m2 and n1+n2+n3>m1+m2+m3 are all satisfied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.