Liquid crystal display and driving method thereof
AssigneesInnocom Technology (Shenzhen) Co., Ltd., Chimei Innolux Corporation
InventorsAN SHIH, SHUN-MING HUANG, DAO-PENG XIE
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Abstract
A liquid crystal display includes a liquid crystal panel, a gray scale correction circuit, a control circuit, and a data driver. The gray scale correction circuit provides a corrected red, green, blue (RGB) data set corresponding to a white image element. The control circuit receives an original RGB data set, and selectively outputs one of the original RGB data set and a corrected RGB data set according to a gray scale value of the of the original data set. The data driver provides a gray scale voltage to the liquid crystal panel according to the output RGB data set of the control circuit.
Claims20
A liquid crystal display, comprising:
- a liquid crystal panel configured for displaying an image having a plurality of image elements, the liquid crystal panel comprising a plurality of pixel units each corresponding to one of the image elements;
- a gray scale correction circuit configured for providing a corrected red, green, blue (RGB) data set corresponding to a white image element;
- and
- a control circuit configured for receiving an original RGB data set, and selectively outputting one of the original RGB data set and one of the corrected RGB data set according to a gray scale value of the of the original RGB data set;
- and
- a data driver configured for providing a gray scale voltage to the liquid crystal panel according to the an output RGB data set of the control circuit.
A method for driving a display, comprising:
- receiving an original red, green, blue (RGB) data set;
- determining whether a gray scale value of the original RGB data set is substantially equal to a predetermined gray scale value corresponding to a white image element;
- outputting a pre-stored corrected RGB data set if the determined gray scale value is substantially equal to the predetermined gray scale value, and, if not, outputting original RGB data set to the data driver;
- generating gray scale voltages according to the output RGB data set, so as to drive a display panel to display an image.
A liquid crystal display, comprising:
- a liquid crystal panel;
- a gray scale correction circuit configured for providing corrected red, green, blue (RGB) data signals of a white image;
- and
- a control circuit configured for receiving original RGB data signals, determining whether the original RGB data signals correspond to the white image based on gray scale values of the original RGB data signals, and outputting the corrected RGB data signals when the original RGB data signals correspond to the white image;
- a data driver configured for providing gray scale voltages to the liquid crystal panel according to the output RGB data signals of the control circuit.
Dependencies are inferred from the claim text.