Patent ID: 8289252
Filing Date: 2012-10-16
Classification: G09G

Abstract:
1. A liquid crystal display device, comprising: a data analysis unit to analyze image data of an input image data stream for variation of luminance between the image data in order to determine whether or not to insert a black data; a black data processing unit to insert the black data into the input image data stream based on the comparison of the variation of luminance of the image data corresponding to an each pixel analyzed by the data analysis unit and to output an output image data stream with the black data or output an output image data stream without the black data; and a liquid crystal panel to display images based on the output image data stream output from the black data processing unit, wherein when a gray level difference between the image data of a current frame and the image data of an next frame is greater than a preset gray level difference, the black data is inserted as a preceding frame right before a change of the gray level of the image data; and wherein the input image data stream is driven at a frequency of 60 Hz, and the insertion of the black data into the input image data stream causes the output image data stream to be driven at a frequency only slightly higher than 60 Hz, wherein the black data is inserted as an entire frame.