Patent ID: 8780298

Claim:
A liquid crystal display device comprising: a liquid crystal panel that has a display area for displaying an image; a light guide plate that has an emission surface emitting light to the liquid crystal panel and a plurality of side surfaces extending from the emission surface; and a plurality of light sources that inputs light to the light guide plate from at least one side surface of the plurality of side surfaces, wherein the light guide plate is divided into a plurality of parts extending from the one side surface to the side surface opposite to the one side surface and the plurality of parts include at least one first part and at least one second part, wherein the first part and the second part are adjacent to each other, have different sectional shapes in the extending direction, and two-dimensionally overlap with the display area, respectively, wherein at least the second part has a shape for guiding the light incident on the light guide plate and emitting the light from the emission surface, wherein the first part has a sectional area of the sectional shape greater than that of the second part, wherein a direction perpendicular to the extending direction of the plurality of parts is a width direction of the plurality of parts, and wherein a total length of the width direction of the at least one second part included in the plurality of parts is greater than a total length of the width direction of the at least one first part included in the plurality of parts, wherein a total number of a plurality of light sources which input light to the at least one second part is more than a total number of a plurality of light sources which input light to the at least one first part.