Patent ID: 9588273
Date: 2017-03-07
CPC Classifications: G02B,G02F

Claim:
1. A backlight unit comprising: a light guide plate; a light source portion arranged adjacent to a side surface of the light guide plate to emit light; a mold frame having an extension portion that covers an upper portion of the light source portion and at least a part of an upper portion of the light guide plate; and an optical pattern sheet arranged on a lower portion of the extension portion to shade or diffuse incident light, wherein the optical pattern sheet does not extend beyond the extension portion in a plan view, and includes a base film and an optical pattern portion disposed on the base film, and wherein the optical pattern portion includes a first pattern having an isolated straight line shape and shielding light, and a second pattern disposed on both sides of the first pattern and having a different planar shape than the first pattern; and wherein the first pattern includes a metal material, and wherein the second pattern includes at least one of TiO