US 12,422,599 B2
Light emitting diode display device
Young-Hun Jeong, Paju-si (KR); and Byung-Hyuck Seo, Paju-si (KR)
Assigned to LG Display Co., Ltd., Seoul (KR)
Filed by LG DISPLAY CO., LTD., Seoul (KR)
Filed on Oct. 31, 2022, as Appl. No. 18/051,257.
Claims priority of application No. 10-2021-0178707 (KR), filed on Dec. 14, 2021.
Prior Publication US 2023/0187579 A1, Jun. 15, 2023
Int. Cl. G02B 5/04 (2006.01)
CPC G02B 5/045 (2013.01) 20 Claims
OG exemplary drawing
 
1. A light emitting diode display device, comprising:
a display panel including a light emitting diode for each sub-pixel defined on a substrate; and
an optical cover window positioned to correspond to a transmission direction of light emitted from the display panel and including a plurality of pyramid patterns;
wherein each of the plurality of pyramid patterns includes an inner bevel surface corresponding to an arrangement error of the light emitting diodes.