US 12,289,992 B2
Display apparatus and light absorber included in display apparatus
Sanghyun Han, Hwaseong-si (KR); Jongwoo Kim, Hwaseong-si (KR); Eunjae Jeong, Hwaseong-si (KR); Dongjun Kim, Suwon-si (KR); Wonmin Yun, Yongin-si (KR); Young Kook Kim, Suwon-si (KR); Eung Seok Park, Seoul (KR); Yongchan Ju, Yongin-si (KR); Yisu Kim, Seoul (KR); Byoungduk Lee, Seongnam-si (KR); and Seokhwan Hwang, Suwon-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Appl. No. 17/250,808
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
PCT Filed Sep. 27, 2019, PCT No. PCT/KR2019/012652
§ 371(c)(1), (2) Date Mar. 4, 2021,
PCT Pub. No. WO2020/071695, PCT Pub. Date Apr. 9, 2020.
Claims priority of application No. 10-2018-0118701 (KR), filed on Oct. 5, 2018; application No. 10-2018-0118704 (KR), filed on Oct. 5, 2018; application No. 10-2018-0118707 (KR), filed on Oct. 5, 2018; and application No. 10-2019-0020685 (KR), filed on Feb. 21, 2019.
Prior Publication US 2022/0158099 A1, May 19, 2022
Int. Cl. H01L 51/00 (2006.01); C07D 239/34 (2006.01); C07D 251/22 (2006.01); C07D 405/04 (2006.01); H10K 50/844 (2023.01); H10K 50/86 (2023.01); H10K 85/60 (2023.01); H10K 59/35 (2023.01); H10K 59/38 (2023.01)
CPC H10K 85/654 (2023.02) [C07D 239/34 (2013.01); C07D 251/22 (2013.01); C07D 405/04 (2013.01); H10K 50/8445 (2023.02); H10K 50/865 (2023.02); H10K 85/615 (2023.02); H10K 85/622 (2023.02); H10K 85/623 (2023.02); H10K 85/6574 (2023.02); H10K 59/35 (2023.02); H10K 59/38 (2023.02)] 31 Claims
OG exemplary drawing
 
1. A display apparatus comprising:
a light-emitting device comprising a first electrode, a second electrode facing the first electrode, and a plurality of organic layers between the first electrode and the second electrode; and
an encapsulation member on the light-emitting device and comprising a light absorber,
wherein the light absorber comprises a hexagonal heterocycle comprising two or more nitrogen atoms as ring-forming atoms, and first to third substituents substituted at the hexagonal heterocycle, the first to third substituents being different from one another,
the first substituent is a substituted phenyl group comprising at least one hydroxyl group, and
the second substituent is a substituted or unsubstituted anthracene group, a substituted or unsubstituted phenanthrene, a substituted or unsubstituted pyrene group, a substituted or unsubstituted chrysene group, a substituted or unsubstituted dibenzofuran derivative, a substituted or unsubstituted carbazole derivative, or a substituted or unsubstituted fluorene derivative,
wherein a substituent of the substituted or unsubstituted dibenzofuran derivative, a substituent of the substituted or unsubstituted carbazole derivative, and a substituent of the substituted or unsubstituted fluorene derivative are each independently a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, an alkenyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 ring-forming carbon atoms, or a substituted or unsubstituted heteroaryl group having 2 to 30 ring-forming carbon atoms, and/or adjacent groups are bonded to each other to form a ring, and
wherein when the hexagonal heterocycle comprises three nitrogen atoms as ring-forming atoms, then the third substituent is a substituted or unsubstituted alkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted aryloxy group having 6 to 30 ring-forming carbon atoms, a substituted or unsubstituted alkylthio group having 1 to 20 carbon atoms, or a substituted or unsubstituted arylthio group having 6 to 30 ring-forming carbon atoms.