Liquid crystal display device

摘要

According to one embodiment, a liquid crystal display device includes a liquid crystal display panel, a first illumination unit configured to illuminate the liquid crystal display panel with light which is emitted in a first emission direction, a second illumination unit configured to illuminate the liquid crystal display panel with light which is emitted in a second emission direction different from the first emission direction, and a controller configured to control the liquid crystal display panel, the first illumination unit and the second illumination unit in a first display mode in which 3D display with power saving is effected, and in a second display mode in which 3D display with a wider viewing angle than in the first display mode is effected.

主权项

1. A liquid crystal display device comprising:
a liquid crystal display panel of a transmission type; a first illumination unit configured to illuminate the liquid crystal display panel with light which is emitted in a first emission direction with an inclination to a normal of the liquid crystal display panel; a second illumination unit configured to illuminate the liquid crystal display panel with light which is emitted in a second emission direction with an inclination to the normal of the liquid crystal display panel, the second emission direction being different from the first emission direction; and a controller configured to control the liquid crystal display panel, the first illumination unit and the second illumination unit in a first display mode in which 3D display with power saving is effected, and in a second display mode in which 3D display with a wider viewing angle than in the first display mode is effected, the controller being configured to execute the first display mode in which the controller alternately outputs a left-eye video signal and a right-eye video signal to the liquid crystal display panel in a state in which a right-eye shutter and a left-eye shutter of shutter glasses are opened at the same time, turns on the first illumination unit and turns off the second illumination unit when the left-eye video signal is output to the liquid crystal display panel, and turns on the second illumination unit and turns off the first illumination unit when the right-eye video signal is output to the liquid crystal display panel, and the controller being configured to execute the second display mode in which the controller alternately outputs the left-eye video signal and the right-eye video signal to the liquid crystal display panel in synchronism with alternate opening/closing of the right-eye shutter and the left-eye shutter of the shutter glasses, and turns on the first illumination unit and the second illumination unit at the same time.