公开(公告)号：US20250089541A1

公开(公告)日：2025-03-13

申请号：US18767101

申请日：2024-07-09

Applicant: Samsung Display Co., Ltd.

Inventor： KYUWON CHO ,  HYUNSEUNG LEE ,  YISEOP SHIM

IPC: H10K59/80 ,  H10K59/12 ,  H10K59/122 ,  H10K59/40 ,  H10K102/00

Abstract: A display device includes a pixel definition layer provided with a pixel opening defined through the pixel definition layer, a light emitting element comprising a light emitting layer having at least a portion disposed in the pixel opening, a refractive pattern disposed on the light emitting element and overlapping the pixel opening, and a cover layer covering the refractive pattern and having a refractive index smaller than a refractive index of the refractive pattern. Grooves are defined in an upper surface of the refractive pattern, and each of the grooves has a diameter equal to or greater than about 50 nm and equal to or smaller than about 500 nm.