US 12,439,817 B2
Long-lifetime organic electroluminescent compound and organic electroluminescent device comprising the same
Zaihao Zheng, Hebei (CN); Pengjun Bu, Hebei (CN); Shiwen Yue, Hebei (CN); Feng Liang, Hebei (CN); and Tianyu Wei, Hebei (CN)
Assigned to SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD., Hebei (CN)
Appl. No. 18/688,112
Filed by Shijiazhuang Chengzhi Yonghua Display Material Co., Ltd., Hebei (CN)
PCT Filed Jan. 31, 2024, PCT No. PCT/CN2024/074909
§ 371(c)(1), (2) Date Feb. 29, 2024,
.
Claims priority of application No. 202410063441.X (CN), filed on Jan. 16, 2024.
Prior Publication US 2025/0248299 A1, Jul. 31, 2025
Int. Cl. H10K 85/60 (2023.01); C09K 11/06 (2006.01); H10K 50/11 (2023.01)
CPC H10K 85/626 (2023.02) [C09K 11/06 (2013.01); H10K 50/11 (2023.02); H10K 85/6574 (2023.02); C09K 2211/1088 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A long-lifetime organic electroluminescent compound, characterized in that the general structural formula of the organic electroluminescent compound is shown as Formula I:

OG Complex Work Unit Chemistry
wherein D is deuterium and n is an integer selected from 0 to 8;
Ar1 is selected from any one of phenyl, biphenyl, naphthyl, perinaphthenyl, benzonaphthofuranyl, dinaphthofuranyl, methylnaphthalene, ethylbenzene, deuterated phenyl, and deuterated naphthyl;
L1 and L2 are selected from a single bond and a substituted or unsubstituted arylene group with a carbon atom number of 6 to 30;
when any one of L1, L2, and Ar1 has substituents, the number of the substituents on the L1, L2, and Ar1 may be one or more, and each of the substituents is independently selected from any one of deuterium, an alkyl group with a carbon atom number of 1 to 30, a haloalkyl group with a carbon atom number of 1 to 30, a cycloalkyl group with a carbon atom number of 3 to 30, an aryl group with a carbon atom number of 6 to 30, and a fused aryl group with a carbon atom number of 10 to 30; and
Ar2 is selected from structures shown in Formula II-111:

OG Complex Work Unit Chemistry
any site on the structure shown in Formula II-111 can be bonded to L2 of Formula I; and
X is selected from O.