Patent ID: 9720160
Date: 2017-08-01
CPC Classifications: F21V,G02B,G02F

Claim:
1. A backlight assembly comprising: a reflective sheet; a light guide plate on the reflective sheet; an optical sheet on the light guide plate; a plurality of light sources disposed at an incident surface of the light guide plate; a wavelength conversion member disposed between the plurality of light sources and the light guide plate; and a reflection-transmission part adjacent to the wavelength conversion member; wherein the wavelength conversion member comprises: a tube; a host in the tube; an air layer in the tube; and a plurality of quantum dots (QDs) in the host, wherein the tube includes an incident surface and an exit surface opposite to the incident surface, wherein the reflection-transmission part comprises a reflection part and a plurality of transmission holes; wherein the reflection part comprises: a front reflection part that is closer to the incident surface of the tube than it is to the exit surface of the tube; an upper reflection part disposed on a top portion of the tube; and a lower reflection part disposed under a bottom portion of the tube, wherein the front reflection part is connected to the upper reflection part and the lower reflection part, and wherein the tube extends along the incident surface of the light guide plate.