Patent ID: 9659531
Date: 2017-05-23
CPC Classifications: G09G

Claim:
1. A display device comprising: an image display panel including a plurality of pixels each including: a first subpixel which displays a first primary color, a second subpixel which displays a second primary color, a third subpixel which displays a third primary color, and a fourth subpixel which displays a fourth color; a lighting unit which emits light to the image display panel from a rear of the image display panel; and a control unit, which calculates a required luminance value for each of blocks obtained by dividing a display surface of the image display panel on the basis of an input image signal, which determines a light source lighting amount of the lighting unit on the basis of luminance distribution information on the lighting unit stored in advance so as to satisfy the required luminance value, which generates luminance information on each pixel on the basis of the luminance distribution information and the light source lighting amount, which generates an output image signal that drives the first subpixel, the second subpixel, the third subpixel, and the fourth subpixel on the basis of the luminance information and the input image signal, which controls the lighting unit by the light source lighting amount, and which controls the image display panel by the output image signal.