Display device, electronic apparatus, and method for driving display device

An electronic apparatus comprising:

• a display device having
• an image display panel;
• a planar light source including a light guide plate and an edge-lit light source, the light guide plate illuminating the image display panel from a back side, the edge-lit light source including a plurality of light sources arranged in a first direction facing a plane of incidence that is at least one side surface of the light guide plate;
• and
• a controller that controls luminance of each of the plurality of light sources independently, wherein,
• the controller stores therein, as lookup tables corresponding to for the plurality of light sources, each of the lookup tables indicating light intensity distribution information that is information on a distribution of light intensity values distributions of light for respective divided areas specified by the first direction and a second direction that is perpendicular to the first direction, that is the light being incident on the light guide plate from the plurality of light sources and being and is emitted to a plane of the image display panel from the light guide plate, and
• the controller controls a light quantity of each of the plurality of light sources based on information on an input signal of an image, and on luminance information obtained by superimposing the lookup tables.

A method for driving a display device that comprises an image display panel and a planar light source including a light guide plate and an edge-lit light source, the light guide plate illuminating the image display panel from a back side, the edge-lit light source including a plurality of light sources arranged in a first direction facing a plane of incidence that is at least one side surface of the light guide plate, the method comprising:

• detecting an input signal of an image;
• analyzing the image;
• and
• computing a light quantity of each of the plurality of light sources based on a result of the analyzing the image, the input signal of the image, and luminance information obtained by superimposing lookup tables corresponding to the plurality of light sources, the lookup tables each indicating light intensity distribution information that is information on a distribution of light intensity values of light for respective divided areas specified by the first direction and a second direction that is perpendicular to the first direction, the light being incident on the light guide plate from the plurality of light sources and being emitted to a plane of the image display panel from the light guide plate.