US 12,239,017 B2
Organic light-emitting devices, display panels and display apparatuses
Siqi Wang, Beijing (CN); Haiyan Sun, Beijing (CN); and Xiaojin Zhang, Beijing (CN)
Assigned to BOE Technology Group Co., Ltd., Beijing (CN)
Filed by BOE Technology Group Co., Ltd., Beijing (CN)
Filed on Aug. 31, 2021, as Appl. No. 17/462,859.
Claims priority of application No. 202011045754.0 (CN), filed on Sep. 28, 2020.
Prior Publication US 2022/0102648 A1, Mar. 31, 2022
Int. Cl. H01L 51/00 (2006.01); C09K 11/06 (2006.01); H10K 85/60 (2023.01); H10K 50/11 (2023.01); H10K 101/00 (2023.01); H10K 101/20 (2023.01); H10K 101/40 (2023.01)
CPC H10K 85/654 (2023.02) [C09K 11/06 (2013.01); H10K 85/631 (2023.02); H10K 85/6572 (2023.02); C09K 2211/1022 (2013.01); H10K 50/11 (2023.02); H10K 2101/20 (2023.02); H10K 2101/40 (2023.02); H10K 2101/90 (2023.02)] 19 Claims
OG exemplary drawing
 
1. An organic light-emitting device, comprising:
a first electrode layer;
a first light-emitting layer provided on the first electrode layer and comprising a first host material and a first guest material;
a second light-emitting layer provided on the first light-emitting layer and comprising a second host material and a second guest material; and
a second electrode layer provided on the second light-emitting layer,
wherein the first guest material has a general structural formula as indicated in Formula I:

OG Complex Work Unit Chemistry
wherein X is selected from carbon, nitrogen, oxygen, sulfur, or boron;
Y is selected from nitrogen or boron, and Y is different from X; and
R1 and R2 are selected from hydrogen, methyl, isopropyl, tert-butyl, substituted or unsubstituted aryl, substituted or unsubstituted alkyl aryl, or substituted or unsubstituted nitrogen-containing aryl.