Patent ID: 8690411

Claim:
An electronic apparatus comprising: a light emitting element; a lens having an incident surface on which light emitted by the light emitting element is incident, and an outgoing surface configured to converge light and from which the light incident on the incident surface is transmitted; a light guide plate having a light incidence plane and introducing through the incidence plane the light transmitted from the outgoing surface, so as to perform surface light emission; a reflective member operative to reflect a portion of the light transmitted from the outgoing surface of the lens, toward the incidence plane of the light guide plate, wherein the reflective member comprises a first reflective portion provided so as to face a side surface of the lens and causing light having already been transmitted through the side surface to be repeatedly incident on the side surface and to be transmitted through the outgoing surface, and wherein the reflective member comprises a second reflective portion configured to reflect light having already been transmitted through the outgoing surface toward the incidence plane of the light guide plate, the first reflective portion including a base part having a constant thickness and the second reflective portion including a wedge part having a thickness that gradually decreases in a direction further from the base part and toward the light guide plate; and a transmittance modulating element having a plurality of pixels and operative to modulate the transmittance of the light emitted by the light guide plate on a pixel basis.