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

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