Patent ID: 9726807
Date: 2017-08-08
CPC Classifications: G02B

Claim:
1. A display apparatus, comprising: a display panel having two light transmission surfaces opposite to each other; and two back light modules comprising a light guide plate, the light guide plate comprising: wherein a reflection coating layer is formed on side surfaces of each of the transmission protrusion, so that light from the light source is emitted from the top surface after being reflected by the reflection coating layer, wherein the two back light modules are disposed at sides of the two light transmission surfaces, respectively, wherein the surface of the respective light guide plate body opposite to the bottom surface thereof is located adjacent to the respective light transmission surface of the display panel, wherein the light transmission regions and reflection sheets of one of two light guide plates correspond to respective pixel electrode regions of the display panel, wherein the pixel electrode regions corresponding to the light transmission regions of the one of two light guide plates correspond to the reflection sheets of the other of two light guide plates, and wherein the pixel electrode regions corresponding to the reflection sheets of the one of two light guide plates correspond to the light transmission regions of the other of two light guide plates, so that the light transmitting through the one of two light guide plates at the transmission protrusion of the one of two light guide plates is directed into the led out the display panel, then the light led out the display panel is irradiated on the reflected back by the reflection surface of the reflection sheet of the other of the two light guide plates, and the reflected light is further transmitted through the display panel and emitted from the respective transmission protrusion of the one of two light guide plates.