Image processing apparatus and image displaying apparatus
US8305339B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2012 |
| Grant date | Nov 6, 2012 |
| Priority date | — |
| Expiry date | Mar 13, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/16
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
There is provided an image displaying apparatus in which a light-source luminance calculator calculates light-source luminance of the light emitted by a backlight based on pixel values of an input image, a cumulative light-emission amount calculator calculates a cumulative light-emission amount by summing up light-source luminance for an arbitrary period for which an image is displayed at a time before the input image is displayed, the cumulative light-emission amount is compared with a reference light-emission amount determined in advance, and if the difference between the cumulative light-emission amount and the reference light-emission amount is smaller than a reference, a light-source luminance correcting unit corrects the light-source luminance to a smaller value to obtain corrected light-source luminance corrected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.