Display apparatus and control method thereof
US8970470B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 14, 2012 |
| Grant date | Mar 3, 2015 |
| Priority date | — |
| Expiry date | Jan 10, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/16
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display apparatus comprises a display panel, a backlight having emission brightness levels adjustable for each of divided sections, a graphic image generating unit that generates a graphic image signal, a synthetic image generating unit that generates a synthetic image signal representing a synthetic image in which an image based on the graphic image signal is overlapped on the image based on the input image signal, and a control unit, wherein the control unit controls the emission brightness levels of the backlight of a plurality of divided sections containing a graphic image display region, where a graphic image based on the graphic image signal is displayed, to be uniform, and controls the emission brightness levels of the backlight of other divided sections based on the input image signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.