Display device, display device drive method, and computer program
US8427513B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 2008 |
| Grant date | Apr 23, 2013 |
| Priority date | — |
| Expiry date | Nov 14, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/16
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display device is provided which includes: a still image detection unit (122) which inputs video signals having linear characteristic and calculates an average value of signal levels of the video signals having linear characteristic per pixel; a storage unit (150) which successively stores the average values calculated by the still image detection unit (122); a still image judging unit (162) which judges whether a still image is displayed on a present screen based on a difference between the average value stored in the storage unit (150) and the last average value; a coefficient calculation unit (164) which calculates coefficients for reducing luminance of an image to be displayed when the still image judging unit (162) has judged that a still image is displayed on the present screen; and a signal level correction unit (128) which multiplies the video signals by the coefficients calculated by the coefficient calculation unit (164).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.