Digital camera that automatically adjusts LCD brightness according to ambient light
US7403227B2 · kind B2 · utility
3Cited by
4References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 6, 2004 |
| Grant date | Jul 22, 2008 |
| Priority date | — |
| Expiry date | Dec 9, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/63
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A digital camera includes a LCD that has a back light whose intensity level is set at a point midway between a maximum intensity setting and a minimum intensity setting. The back light level is then adjusted automatically from this default setting to a brightness level that corresponds to a measured scene level. The back light intensity level and contrast level of the LCD then change automatically thereafter to correspond to the measured scene level whereby the LCD controls are adjusted according to the lighting environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.