Signal conversion device, signal conversion method and display device
US9570015B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 2014 |
| Grant date | Feb 14, 2017 |
| Priority date | — |
| Expiry date | Dec 6, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2340/06
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention discloses a signal conversion device, a signal conversion method and a display device. The signal conversion device includes a gamma conversion unit, a brightness detection unit and a brightness processing unit, wherein the gamma conversion unit is used for performing a gamma conversion process on RGB input signals and generating RGB brightness input values; the brightness detection unit is used for generating a W brightness input value based on RGB proportional coefficients and the RGB brightness input values; and the brightness processing unit is used for generating RGBW output signals based on the RGB proportional coefficients, the RGB brightness input values and the W brightness input value. With the present invention, the brightness of a displayed image can be increased without increasing the power consumption, so that the contrast of the displayed image is increased, and the display quality of the image is also improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.