US 11,768,401 B2
Display apparatus
Sungyeol Kim, Suwon-si (KR); Kyehoon Lee, Suwon-si (KR); Kyungsoo Park, Suwon-si (KR); and Hyukjun Jang, Suwon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on May 27, 2022, as Appl. No. 17/827,164.
Application 17/827,164 is a continuation of application No. PCT/KR2022/007117, filed on May 18, 2022.
Claims priority of application No. 10-2021-0084830 (KR), filed on Jun. 29, 2021.
Prior Publication US 2022/0413341 A1, Dec. 29, 2022
Int. Cl. G02F 1/13357 (2006.01)
CPC G02F 1/133605 (2013.01) [G02F 1/133603 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display apparatus, comprising:
a liquid crystal panel;
a substrate; and
a plurality of light emitting diodes (LEDs) provided on one side of the substrate and configured to emit light towards the liquid crystal panel,
wherein each LED of the plurality of LEDs comprises:
a first reflection layer;
a second reflection layer; and
a light emitting layer provided between the first reflection layer and the second reflection layer,
wherein the second reflection layer is provided between the substrate and the light emitting layer,
wherein a first reflectivity of the first reflection layer for a first light entering at a first incident angle is different from a second reflectivity of the second reflection layer for the first light entering at the first incident angle, and
wherein a fourth reflectivity of the second reflection layer for light entering at an angle other than the first incident angle is different from the second reflectivity of the second reflection layer.