公开(公告)号：US11852854B2

公开(公告)日：2023-12-26

申请号：US17495755

申请日：2021-10-06

Applicant: Samsung Display Co., Ltd.

Inventor： Youngchan Kim ,  Jaeho You ,  Jeongwoo Park ,  Hyun Jin Cho

IPC: H10K59/38 ,  G02B5/23 ,  F21V8/00

CPC classification number: G02B5/23 ,  G02B6/005 ,  H10K59/38

Abstract: An embodiment of a display device includes a substrate, a first light-emitting element, and a light control layer. The substrate includes a display area and a peripheral area adjacent to the display area, and the display area includes a light-emitting area and a light-blocking area. The first light-emitting element is disposed in the light-emitting area on the substrate and emits a first light having a first wavelength range. The light control layer is disposed on the first light-emitting element, and defines an opening exposing a portion of the light-emitting area. The light control layer includes a photochromic material such that in operation a second light having a second wavelength range different from the first wavelength range applied to the light control layer discolors the light control layer.