Patent ID: 9685137
Date: 2017-06-20
CPC Classifications: G09G

Claim:
1. A display device comprising: an image display unit in which pixels are arranged, each of the pixels including a fourth sub-pixel and surrounding sub-pixels arranged around the fourth sub-pixel, the fourth sub-pixels of the respective pixels being arranged in a two-dimensional matrix and displaying a white color component as a fourth color, each of the pixels sharing at least one of the surrounding sub-pixels with an adjacent pixel adjacent to the pixel; and a signal processing unit that, based on a first input video signal for a specific pixel and a second input video signal for an adjacent pixel adjacent to the specific pixel, generates an output signal for the surrounding sub-pixels belonging to the specific pixel and outputs the output signal that is generated to the image display unit, wherein the signal processing unit generates third color information on the surrounding sub-pixels belonging to the specific pixel based on second color information obtained by subtracting color information on the fourth sub-pixel belonging to the specific pixel from first color information of the first input video signal for the specific pixel, corrects the third color information on the surrounding sub-pixels belonging to the specific pixel based on the third color information on the surrounding sub-pixels belonging to the adjacent pixel generated based on the second color information obtained by subtracting color information on the fourth sub-pixel belonging to the adjacent pixel from first color information of the second input video signal for the adjacent pixel to generate the output signal for the surrounding sub-pixels.