Display apparatus with gamma measurement
US5798790A · kind A · utility
16Cited by
6References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 12, 1996 |
| Grant date | Aug 25, 1998 |
| Priority date | — |
| Expiry date | Apr 12, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N17/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Display apparatus comprises a display screen and drive means for generating an image on the display screen in response to a video signal input from an external video source. The drive means comprises gamma measurement means having a test signal generator for generating a test signal to produce a test image on the display screen, and output detection means for generating a sense signal as a function of the test image produced on the display screen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.