US 12,457,844 B2
Display device and method of manufacturing the same
Joongu Lee, Yongin-si (KR); Hyejin Gwark, Yongin-si (KR); Arong Kim, Yongin-si (KR); Jaeik Kim, Yongin-si (KR); Jungsun Park, Yongin-si (KR); Heemin Park, Yongin-si (KR); Yeonhwa Lee, Yongin-si (KR); and Kyuhwan Hwang, Yongin-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Jun. 10, 2022, as Appl. No. 17/837,769.
Claims priority of application No. 10-2021-0130308 (KR), filed on Sep. 30, 2021.
Prior Publication US 2023/0103050 A1, Mar. 30, 2023
Int. Cl. H10K 50/11 (2023.01); H10K 71/00 (2023.01)
CPC H10K 50/11 (2023.02) [H10K 71/00 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A display device comprising:
a substrate comprising a display area and a peripheral area outside the display area, the display area having a transmission area and a pixel area;
a display element corresponding to the pixel area and comprising a pixel electrode, an intermediate layer on the pixel electrode, and a counter electrode on the intermediate layer;
a photoluminescent layer corresponding to the transmission area and comprising a photoluminescent material; and
an auxiliary layer on the photoluminescent layer,
wherein the counter electrode comprises a first material,
the auxiliary layer comprises a second material, and
the first material is higher in surface energy than the second material, at 25° C.