Patent ID: 11930651
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: nan (nan)
Classification: CPC H | IPC H

Claim 10:
11. The organic electroluminescence element according to claim 9, further comprising a hole transport layer and an electron blocking layer disposed between the anode and the organic light emitting layer, the hole transport layer disposed close to the anode, the electron blocking layer disposed close to the organic light-emitting layer, and the electron blocking layer comprising an electron blocking material; wherein
a difference between a HOMO energy level of the electron blocking material and the HOMO energy level of the host material is less than 0.2 eV; or
a triplet energy level of the electron blocking material is greater than a triplet energy level of the host material, the triplet energy level of the electron blocking material is greater than a triplet energy level of the TADF sensitizer, and the triplet energy level of the electron blocking material is greater than a triplet energy level of the fluorescent luminescent material.