Liquid crystal display and driving method thereof
US7733358B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 12, 2005 |
| Grant date | Jun 8, 2010 |
| Priority date | — |
| Expiry date | Sep 21, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/16
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a display device having a light source and a storage for storing at least one reference frame of image data, a driving method includes receiving a current frame of image data; comparing grey levels between pixels of the current frame of image data and the corresponding pixels of the reference frame of image data; determining a pixel quantity of pixels having different grey levels in the current frame of image data and the reference frame of image data; and based on the determined pixel quantity, calculating and outputting a signal controlling a light emitting duty ratio and an amplitude of the light source while displaying the current frame. The display device further has a comparing unit and light source control unit for performing the driving method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.