Patent ID: 9625639
Date: 2017-04-18
CPC Classifications: G02B,G02F

Claim:
1. A display device comprising: a light source for generating a light; an optical member into which the light generated from the light source is incident; a light guide plate under the optical member; a display panel into which the light output from the optical member is incident, wherein the optical member comprises: a wavelength conversion layer to convert a wavelength of the light; an upper substrate and a lower substrate including polyethyleneterephthalate (PET), wherein the wavelength conversion layer is sandwiched between the upper and lower substrates; an upper anti-reflective layer of at least two layers disposed above a first surface of the wavelength conversion layer; and a lower anti-reflective layer of at least two layers disposed under a second surface of the wavelength conversion layer opposite to the first surface, wherein the at least two layers of the lower anti-reflective layer have different refractive indices, wherein the at least two layers of the upper anti-reflective layer have different refractive indices, wherein the wavelength conversion layer includes a matrix and a plurality of wavelength conversion particles distributed in the matrix, wherein the plurality of wavelength conversion particles comprise a quantum dot, and wherein the optical member is sandwiched between the display panel and the light guide plate.