Color display device and method for reproducing color with an increased number of gradation levels
US8159509B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 28, 2008 |
| Grant date | Apr 17, 2012 |
| Priority date | — |
| Expiry date | Jan 20, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0285
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A color display device has a display screen having pixels arrayed, each of which is composed of primary color sub-pixels capable of reproducing respective primary colors and at least one subsidiary color sub-pixel capable of reproducing gray. While gradation signals are generated and supplied to the primary color sub-pixels on the basis of the primary color components of an image to be displayed, the gradation signal to be supplied to the subsidiary color sub-pixel is generated on the basis of the intensity component of the image. The color display device is attained in which the number of gradation levels can be substantially increased without increasing the number of gradation levels of the primary colors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.