Driving method of image display device
US9024982B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2014 |
| Grant date | May 5, 2015 |
| Priority date | — |
| Expiry date | Aug 8, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/145
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image display device includes an image display panel configured of pixels made up of first, second, third, and fourth sub-pixels being arrayed in a two-dimensional matrix shape, and a signal processing unit into which an input signal is input and from which an output signal based on an extension coefficient is output, and causes the signal processing unit to obtain a maximum value of luminosity with saturation S in the HSV color space enlarged by adding a fourth color, as a variable, and to obtain a reference extension coefficient based on the maximum value, and further to determine an extension coefficient at each pixel from the reference extension coefficient, an input signal correction coefficient based on the sub-pixel input signal values at each pixel, and an external light intensity correction coefficient based on external light intensity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.