Patent ID: 8976096
Filing Date: 2015-03-10
Classification: G09G

Abstract:
1. A liquid crystal display device, comprising a liquid crystal panel having a plurality of pixels arranged in a matrix, said plurality of pixels being grouped into four types of type 1, type 2, type 3, and type 4; a panel driver circuit connected to the liquid crystal panel to drive the liquid crystal panel; and a display control circuit connected to the panel driver circuit, said display control circuit receiving an image signal, wherein said display control circuit divides each refresh cycle of the image signal into consecutive first to fourth terms and causes the panel driver circuit to drive the liquid crystal panel to perform a halftone display by changing pixel luminance during each refresh cycle composed of the first to fourth terms, and wherein said display control circuit provides timing signals and gradation data to the panel driver circuit so that, for a given halftone to be displayed in a refresh cycle, pixels belonging to respective types in the liquid crystal panel are driven such that: the pixel luminance of pixels in type 4 decreases or is maintained during the first term, increases during the second term, increases or is maintained during the third term, and decreases during the fourth term, thereby generating the halftone as averaged over the first to fourth terms.