US 11,871,597 B2
Organic electroluminescence display device
Jungjin Yang, Seoul (KR); Myunghwan Kim, Hanam-si (KR); Seohyun Kim, Seoul (KR); Ji-young Kim, Seoul (KR); Jinwoo Park, Yongin-si (KR); Wonjun Song, Hwaseong-si (KR); Taewoong Yoo, Seoul (KR); Soojung Youn, Seoul (KR); Kwanhee Lee, Suwon-si (KR); and Seokjae Lee, Hwaseong-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Dec. 29, 2022, as Appl. No. 18/148,194.
Application 18/148,194 is a continuation of application No. 17/352,111, filed on Jun. 18, 2021, granted, now 11,545,643.
Application 17/352,111 is a continuation of application No. 16/383,362, filed on Apr. 12, 2019, granted, now 11,043,649, issued on Jun. 22, 2021.
Claims priority of application No. 10-2018-0047519 (KR), filed on Apr. 24, 2018.
Prior Publication US 2023/0141265 A1, May 11, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H10K 50/15 (2023.01); H10K 50/16 (2023.01); H10K 59/32 (2023.01); H10K 50/805 (2023.01)
CPC H10K 50/805 (2023.02) [H10K 50/15 (2023.02); H10K 50/16 (2023.02); H10K 59/32 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A light emitting display device comprising:
a display panel; and
a touch sensing unit on the display panel,
wherein the display panel comprises:
a substrate including a first light emitting region, a second light emitting region, and a non-light emitting region;
a first electrode comprising a first sub-electrode on the first light emitting region and a second sub-electrode on the second light emitting region;
a first light emitting unit on the first electrode;
a charge generation unit comprising an n-type charge generation layer on the first light emitting unit and a p-type charge generation layer on the n-type charge generation layer;
a second light emitting unit on the charge generation unit; and
a second electrode on the second light emitting unit,
wherein the first light emitting unit comprises a first light emitting layer on the first sub-electrode, and a second light emitting layer on the second sub-electrode,
wherein the second light emitting unit comprises a third light emitting layer on the first light emitting layer, and a fourth light emitting layer on the second light emitting layer,
wherein one of the n-type charge generation layer and the p-type charge generation layer comprises a first sub charge generation layer on the first light emitting region and a second sub charge generation layer on the second light emitting region.