Patent ID: 9697795
Date: 2017-07-04
CPC Classifications: G09G,H04N

Claim:
1. A video processing device, comprising: a dual matrix selecting module and a dual channel color data processing module, wherein the dual matrix selecting module is used to select one of a first dithering matrix and a second dithering matrix when one of two adjacent frames of images is displayed, and select the other one of the first dithering matrix and the second dithering matrix when the other one of said two adjacent frames of images is displayed, wherein after a dithering matrix is selected, when the same frame of image is displayed, a first row of elements or a second row of elements in the selected dithering matrix is selected for an odd row of pixels, and the selected elements are outputted to the dual channel color data processing module; the other row of elements in the selected dithering matrix is selected for an even row of pixels, and the selected elements are outputted to the dual channel color data processing module, wherein the first dithering matrix and the second dithering matrix are both 2*2 matrices, the second dithering matrix being a rotation matrix of the first dithering matrix; the dual channel color data processing module is used to compare lower 2 bit video data in an 8 bit video data received by sub-pixels in each row with two selected elements in the selected dithering matrix respectively, wherein when a decimal number to which the lower 2 bit video data corresponds is greater than each of the selected elements in the selected dithering matrix, a higher 6 bit video data to which the lower 2 bit video data corresponds is outputted after being increased by 1; when overflow occurs after being increased by 1, a video data of 111111 is outputted; when the decimal number to which the lower 2 bit video data corresponds is less than or equal to at least one of the selected elements in the selected dithering matrix, the higher 6 bit video data to which the lower 2 bit video data corresponds is outputted directly.