Patent ID: 8562148
Filing Date: 2013-10-22
Classification: G03B,G09G,H04N

Abstract:
1. A control device that controls a video signal to be input to a display device and controls the luminance of a light source that causes light to be incident on the display device, comprising: a video signal analyzing section that analyzes the video signal; a light source luminance control signal generating section that generates, on the basis of the results of the analysis, a light source luminance control signal that is used to control the luminance of the light source; a light source luminance control section that controls the luminance of the light source by means of the light source luminance control signal; a storage section that stores relationships between light source luminance control signals and video correction amounts; a video correction signal generating section that generates, on the basis of the video correction amount that is stored in the storage section and corresponds to the generated light source luminance control signal, a video correction signal that is used to correct the video signal; a video signal correcting section that corrects the video signal by means of the video correction signal; and a video signal output section that outputs the corrected video signal to the display device, wherein when a value of the video correction signal, which corresponds to the generated light source luminance control signal, is not stored in the storage section, the video correction signal generating section interpolates the value of the video correction signal on the basis of the video correction amounts stored in the storage section and generates the video correction signal.