| 主权项 |
1. A display device comprising:
an image display panel; a planar light source comprising
a light guide plate that irradiates the image display panel from a back surface of the image display panel and includes a first side surface serving as a first incident surface and a second side surface serving as a second incident surface and opposite to the first side surface,a first sidelight light source that is disposed at a position facing the first incident surface of the light guide plate and includes a plurality of light sources, anda second sidelight light source that is disposed at a position facing the second incident surface of the light guide plate and includes a plurality of light sources; and a control unit that controls luminance of the light sources of the first sidelight light source individually and luminance of the light sources of the second sidelight light source individually, wherein the control unit divides a whole display surface of the image display panel into a first display surface and a second display surface, sets first luminance determination blocks by dividing the first display surface into a plurality of portions in a light source array direction in which the light sources of the first sidelight light source are aligned and in a light incident direction orthogonal to the light source array direction, identifies a first luminance determination block having highest luminance out of the first luminance determination blocks present at the same position in the light source array direction in an image to be displayed based on information of an input signal of the image, identifies a first luminance determination block to be a target of luminance correction by referring to luminance information on the light sources, and controls light source lighting amounts of the respective light sources so as to satisfy luminance of the identified first luminance determination block, and the control unit sets second luminance determination blocks by dividing the second display surface into a plurality of portions in the light source array direction and the light incident direction, identifies a second luminance determination block having highest luminance out of the second luminance determination blocks present at the same position in the light source array direction in the image to be displayed based on information in the input signal of the image, identifies a second luminance determination block to be a target of luminance correction by referring to the luminance information on the light sources, and controls the light source lighting amounts of the respective light sources so as to satisfy luminance of the identified second luminance determination block. |
