Self light emitting display device for adjusting a necessary brightness based on user setting, outside light or video signal
US8659627B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 8, 2010 |
| Grant date | Feb 25, 2014 |
| Priority date | — |
| Expiry date | Aug 28, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/144
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A self light emitting display device is provided which includes a panel driver which changes a maximum voltage supplied to the self light emitting display panel according to the necessary maximum brightness, a storage unit which holds data related to a reverse gamma characteristic that is opposite to a gamma characteristic between an amount of light emitted from the self light emitting display panel and a voltage supplied from the panel driver to the self light emitting display panel, and a panel gamma generation unit which generates an output signal based on the reverse gamma characteristic by changing an applicable range of the reverse gamma characteristic according to the necessary maximum brightness while maintaining the same gradations as those when the self light emitting display panel emits light at a displayable maximum brightness. The panel driver drives the self light emitting display panel based on the output signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.