US 12,069,877 B2
Composition for manufacturing light-emitting device, light-emitting device manufactured by the same, and method of manufacturing the light-emitting device
Heunggyu Kim, Yongin-si (KR); Sehun Kim, Yongin-si (KR); Taeheon Kang, Yongin-si (KR); Hyeran Mun, Yongin-si (KR); Juyon Lee, Yongin-si (KR); and Jaekook Ha, Yongin-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Aug. 23, 2021, as Appl. No. 17/445,666.
Claims priority of application No. 10-2021-0000984 (KR), filed on Jan. 5, 2021.
Prior Publication US 2022/0216444 A1, Jul. 7, 2022
Int. Cl. H10K 85/60 (2023.01); H10K 50/11 (2023.01); H10K 50/16 (2023.01); H10K 71/00 (2023.01); H10K 71/12 (2023.01); H10K 101/30 (2023.01); H10K 101/40 (2023.01)
CPC H10K 50/11 (2023.02) [H10K 85/626 (2023.02); H10K 85/631 (2023.02); H10K 85/636 (2023.02); H10K 85/6576 (2023.02); H10K 50/16 (2023.02); H10K 71/00 (2023.02); H10K 71/12 (2023.02); H10K 85/6574 (2023.02); H10K 2101/30 (2023.02); H10K 2101/40 (2023.02)] 19 Claims
OG exemplary drawing
 
1. A composition for manufacturing a light-emitting device, the composition comprising:
a solvent; and
a first compound and a second compound, each dispersed in the solvent;
wherein a molecular weight of the first compound is 750 g/mol or less,
a molecular weight of the second compound is greater than 750 g/mol,
a lowest unoccupied molecular orbital (LUMO) energy level of the second compound is greater than −2.4 eV,
a highest occupied molecular orbital (HOMO) energy level of the second compound is less than −5.6 eV, and
a bandgap energy of the second compound is greater than 3.2 eV, and
wherein an amount of the first compound is greater than an amount of the second compound.