US 12,219,787 B2
QLED devices, hole transport materials and producing methods thereof, and display devices
Jingwen Feng, Beijing (CN)
Assigned to BOE Technology Group Co., Ltd., Beijing (CN)
Appl. No. 17/426,615
Filed by BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed Jan. 11, 2021, PCT No. PCT/CN2021/071135
§ 371(c)(1), (2) Date Jul. 28, 2021,
PCT Pub. No. WO2021/143653, PCT Pub. Date Jul. 22, 2021.
Claims priority of application No. 202010047324.6 (CN), filed on Jan. 16, 2020.
Prior Publication US 2022/0102664 A1, Mar. 31, 2022
Int. Cl. H01L 51/50 (2006.01); C08K 3/22 (2006.01); C08K 3/30 (2006.01); H10K 50/115 (2023.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01); H10K 50/17 (2023.01); H10K 71/00 (2023.01); H10K 85/10 (2023.01); B82Y 20/00 (2011.01); H10K 102/00 (2023.01)
CPC H10K 50/15 (2023.02) [C08K 3/22 (2013.01); C08K 3/30 (2013.01); H10K 50/115 (2023.02); H10K 50/16 (2023.02); H10K 50/17 (2023.02); H10K 71/00 (2023.02); H10K 85/10 (2023.02); B82Y 20/00 (2013.01); C08K 2003/2248 (2013.01); C08K 2003/2293 (2013.01); C08K 2003/3009 (2013.01); C08K 2201/001 (2013.01); C08K 2201/011 (2013.01); H10K 2102/351 (2023.02)] 15 Claims
OG exemplary drawing
 
1. A hole transport material, comprising: a polymer, wherein the polymer is a single nanoparticle comprising at least a first metal compound and a second metal compound, the first metal compound and the second metal compound are linked via a covalent bond or a Van der Waals force, and valence band energy levels of the first metal compound and the second metal compound are different;
wherein the single nanoparticle further comprises a third metal compound, the third metal compound and the first metal compound are linked via a covalent bond or a Van der Waals force, and/or the third metal compound and the second metal compound are linked via a covalent bond or a Van der Waals force, valence band energy levels of any two of the first metal compound, the second metal compound and the third metal compound are different.