Display device and driving method thereof
US9208736B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2012 |
| Grant date | Dec 8, 2015 |
| Priority date | — |
| Expiry date | Dec 8, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/103
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display device includes a display panel having gate lines and data lines, a signal controller driving the display panel, a graphic processing unit transmitting input image data to the signal controller, a gate driver driving the gate lines, and a data driver driving the data lines. The display panel is driven at a first frequency when displaying a moving image and driven at a lower frequency when displaying a still image. The signal controller includes a frame memory storing the input image data, a calculator calculating a representative value of image data stored in the frame memory, a line memory storing the representative value, and a kick-back corrector generating auxiliary image data by correcting the representative value according to a kick-back voltage. The data driver applies an auxiliary voltage corresponding to the auxiliary image data to the data lines in a vertical blank period when displaying the still image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.