Patent ID: 11925042
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: nan (nan)
Classification: CPC H | IPC H

Claim 6:
7. The organic electroluminescent device according to claim 1, wherein:
when the P:N ratio is 7:3,

0.40 eV≤HOMO(HTL)−HOMO(EML)≤0.55 eV, and  (1)

0.28 eV≤LUMO(EML)−LUMO(ETL)≤0.40 eV; and

when P:N is 6:4,

0.45 eV≤HOMO(HTL)−HOMO(EML)≤0.55 eV, and  (1)

0.30 eV≤LUMO(EML)−LUMO(ETL)≤0.40 eV.