DISPLAY DEVICE AND CONTROL METHOD FOR SAME

摘要

On the basis of the image data obtained by the image data acquisition section, a target luminance calculation section calculates a target luminance, which is a target value for the luminance of emitted light for each segment region. An inverse filter acquisition section acquires an inverse filter of a light emission distribution function which represents light emission distribution characteristics of the light source for each segment region. A setting value calculation section calculates a setting value for the luminance of emitted light of the light source for each segment region by performing a convolution operation on the target luminance for each segment region with the inverse filter. On the basis of the setting value for each segment region calculated by the setting value calculation section, a light source control section controls the luminance of emitted light of the light source for each segment region.

主权项

1. A display device comprising:
a non-self-luminous display panel; a light source that separately controls a luminance of each illumination arranged for each segment region which is obtained by segmenting a display region of the non-self-luminous display panel into a plurality of pieces; an image data acquisition section that acquires image data; a target luminance calculation section that calculates a target luminance which is a target value of a luminance of emitted light for each of the illumination arranged for each segment region on the premise of an ideal condition that emitted light of a certain segment region is not leaked into peripheral segment regions thereof, on the basis of the image data acquired by the image data acquisition section; an inverse filter acquisition section that acquires an inverse filter of a light emission distribution function which represents light emission distribution characteristics dispersed across segment regions of the illumination arranged for each segment region; a setting value calculation section that calculates a setting value of the luminance of the emitted light of the illumination for each segment region so as to minimize difference between estimated luminance which is an estimated value of a luminance of an emitted light of the illumination affected by setting values of luminance of emitted light of illuminations of peripheral segment regions and the target luminance, by performing a convolution operation on the target luminance for each segment region, which is calculated by the target luminance calculation section, with the inverse filter which is acquired by the inverse filter acquisition section; and a light source control section that controls the luminance of the emitted light of the illumination for each segment region on the basis of the setting value for each segment region which is calculated by the setting value calculation section.