US 12,396,075 B2
Blue organic electroluminescence device, display panel and display apparatus
Dongxu Zhang, Beijing (CN); Rongrong Gao, Beijing (CN); Lixia Qiu, Beijing (CN); and Yang Liu, Beijing (CN)
Assigned to BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 17/606,840
Filed by BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Dec. 17, 2020, PCT No. PCT/CN2020/137230
§ 371(c)(1), (2) Date Oct. 27, 2021,
PCT Pub. No. WO2022/126499, PCT Pub. Date Jun. 23, 2022.
Prior Publication US 2022/0418059 A1, Dec. 29, 2022
Int. Cl. H01L 51/50 (2006.01); H05B 33/10 (2006.01); H05B 33/14 (2006.01); H10K 50/155 (2023.01); H10K 85/60 (2023.01)
CPC H05B 33/14 (2013.01) [H05B 33/10 (2013.01); H10K 50/155 (2023.02); H10K 85/615 (2023.02); H10K 85/622 (2023.02)] 18 Claims
OG exemplary drawing
 
1. A blue organic electroluminescence device, comprising:
a light-emitting layer comprising a matrix material and a blue fluorescent doping material doped in the matrix material, wherein dipole moments of the matrix material and the blue fluorescent doping material are both 0 to 1 D; and
a hole transport layer located on a side of the light-emitting layer, wherein a dipole moment of a material of the hole transport layer is 0 to 2 D.