Video enhancement and display power management
US7692612B2 · kind B2 · utility
3Cited by
8References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2006 |
| Grant date | Apr 6, 2010 |
| Priority date | — |
| Expiry date | Oct 3, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/16
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In visual display devices such as LCD devices with backlight illumination, the backlight typically consumes most of device battery power. In the interest of displaying a given pixel pattern at a minimized backlight level, the pattern can be transformed while maintaining image quality, with a transform determined from pixel luminance statistics. Aside from, or in addition to such minimizing, a transform also can be used for image enhancement, for a displayed image better to meet a visual perception quality. In either case, the transform preferably is constrained for enforcing one or several display attributes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.