Liquid crystal display device and driving method thereof
US7312777B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2004 |
| Grant date | Dec 25, 2007 |
| Priority date | — |
| Expiry date | Dec 10, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2340/16
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A liquid crystal display device carries out tone display with pixels by applying a tone voltage according to tone data to each pixel in each frame, and includes: an LUT memory, which receives tone data of a display frame and tone data of an immediately preceding frame, for converting and outputting the tone data of the display frame; a source driver for applying the tone voltage to the pixels based on the converted tone data outputted from the LUT memory; and a liquid crystal cell, which makes up the pixels, for realizing tone display by the applied tone voltage, wherein the LUT memory stores beforehand output tone data which is specified by the tone data of the display frame and the tone data of the immediately preceding frame. This reduces a voltage change of pixel electrodes which is associated with a tone change to suppress unmatched tone display, thereby improving image quality of moving images.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.