Patent ID: 9354450
Filing Date: 2016-05-31
CPC Classification: G02B

Claim Text:
1. A display apparatus, comprising: a display panel; and a light module opposite to the display panel, wherein the light module comprises: a light guide plate having a first light incident surface, a first lateral surface and a second lateral surface opposite to the first lateral surface; a first light emitting unit corresponding to the first light incident surface; and a plurality of light guide elements disposed on the first lateral surface with intervals, wherein the light guide element has a plurality of cross-sections parallel to the first light incident surface, and an area of the cross-section increases as the distance from the cross-section to the first light incident surface increases to a certain distance from the light incident surface, and thereafter the area of the cross-section decreases as the distance from the cross-section to the first light incident surface continues to increase; wherein, after a light is emitted from the first light emitting unit and enters the light guide plate via the first light incident surface, the light is guided by the plurality of light guide elements and emitted from one of the first and the second lateral surfaces of the light guide plate with alternated bright state and dark state.