Patent ID: 8451399

Claim:
A liquid crystal display device, comprising: a resin frame including a storing space formed of a hole which passes through a first surface and a second surface; a light guide plate disposed in the storing space; and a liquid crystal display panel which is fixed on the first surface of the resin frame so as to overlap the light guide plate, wherein: the hole of the resin frame is formed of an inner peripheral surface, which is inclined, so that an opening of the second surface is smaller than an opening of the first surface; and the light guide plate includes an outer peripheral surface, which is inclined, and is disposed in the storing space in a manner that the inner peripheral surface and the outer peripheral surface are opposed to each other; wherein, in a triangle having an oblique line corresponding to a length of the inner peripheral surface between the first surface and the second surface, a height corresponding to a thickness of the resin frame between the first surface and the second surface, and a base corresponding to a length of protrusion of an end of the second surface with respect to an end of the first surface toward the hole, the following expression is satisfied, tan θ=( T/ 2 C ), where θ represents an angle formed by the second surface and the inner peripheral surface on an internal side of the resin frame, T represents a thickness of the light guide plate, and C represents a gap between the light guide plate and the inner peripheral surface.