Patent ID: 8517591

Claim:
A liquid crystal display device comprising: a liquid crystal panel; and a backlight which radiates light to the liquid crystal panel, wherein the backlight includes a light emitting element and a light guide plate on which light emitted from the light emitting element is incident, the light guide plate includes a plurality of side surfaces including a light incident portion forming a side surface which faces a light emitting surface of the light emitting element in an opposed manner and on which the light emitted from the light emitting element is incident, a top surface including a light radiating portion which radiates the incident light, and a bottom surface, the light incident portion is formed by compressing a resin, and the light guide plate includes a stepped portion which is formed by compression, the stepped portion including a first stepped portion which is formed at the top surface between the light incident portion and the light radiation portion, and a second stepped portion which is formed at position only adjacent at least one of the plurality of side surfaces of the light guide plate between at least one end of the bottom surface and the at least one of the plurality of side surfaces.