Image displaying method, image displaying device, and contrast-adjusting circuit for use therewith
US7227559B2 · kind B2 · utility
18Cited by
7References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 10, 2003 |
| Grant date | Jun 5, 2007 |
| Priority date | — |
| Expiry date | Mar 20, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/066
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system provides an image displaying technique that provides stable high contrast even in an area having high brightness. Based on information about an average brightness level of a digital luminance signal, black-correction processing which decreases a brightness level by offsetting the brightness level to the minus side, and increase processing which increases a contrast gain within a dynamic range, are performed for an analog luminance signal or a digital luminance signal, enabling improvement in contrast even where brightness is intense.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.