Image display device
US8217968B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2009 |
| Grant date | Jul 10, 2012 |
| Priority date | — |
| Expiry date | Jan 26, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/16
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image display device 100 is an image display device capable of controlling the luminance of a backlight. The image display device 100 includes: a backlight luminance set value estimator which calculates the luminance set value of a backlight 101 based on an input image; and a signal corrector which corrects the transmittance of a liquid crystal in accordance with the luminance distribution of backlight emitted to the liquid crystal panel. The image display device 100 is characterized in that a signal corrector 107 corrects the transmittance of the liquid crystal while retaining the proportion of a gray-scale level value of each of RGB subpixels of the input image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.