Image display apparatus
US7423661B2 · kind B2 · utility
19Cited by
9References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 18, 2004 |
| Grant date | Sep 9, 2008 |
| Priority date | — |
| Expiry date | Feb 1, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2340/0428
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Driving condition is determined so that the stimulating values of brightness with respect to drive data become closer to being regular in interval. As the drive condition, the frequency of a reference clock used for the pulse width modulation is changed to be higher than the range of high gradations in the range of low gradations in drive data. Accordingly, smaller increment in brightness in the range of low gradation and larger increment in the range of high gradations are achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.