Display device

摘要

A display device includes: a first light source which emits light; a second light source which emits light; a display panel which displays an image; a first light guide plate and a second light guide plate which guide, to the display panel, the light from the first light source and the light from the second light source, respectively; and a control unit which causes one of the first light source and the second light source to emit the light. A first divergence angle obtained when the light from the first light source enters the first light guide plate is larger than a second divergence angle obtained when the light from the second light source enters the second light guide plate.

主权项

1. A display device which has a switchable viewing angle for displaying an image, the display device comprising:
a first light source which emits light; a second light source which emits light; a display panel which displays the image; a light guide plate which guides each of the light from the first light source and the light from the second light source to the display panel; and a control unit configured to cause one of the first light source and the second light source to emit the light, a switchable diffusing element which is switchable between a diffusion state where light from the light guide plate is diffused and a non-diffusion state where the light from the light guide plate is allowed to pass through the switchable diffusing element without being diffused; and a light deflector which is capable of deflecting the light from the light guide plate, wherein a first divergence angle obtained when the light from the first light source enters the light guide plate is larger than a second divergence angle obtained when the light from the second light source enters the light guide plate, and the control unit is configured to: switch the switchable diffusing element to the diffusion state when the first light source emits the light; switch the switchable diffusing element to the non-diffusion state when the second light source emits the light cause the first light source to emit the light when an image for 2D displaying is to be displayed on the display panel; and cause the second light source to emit the light, and control the light deflector in such a manner that light from the display panel is focused alternately on a right eye and a left eye of a user, when a parallax image for 3D displaying is to be displayed on the display panel.