Patent ID: 11968852
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: nan (nan)
Classification: CPC H | IPC H

Claim 10:
11. The light-emitting substrate according to claims 8, wherein
the light-emitting substrate further comprises a pixel defining layer and a film having electron transport function located on a side of the pixel defining layer away from the base, and the pixel defining layer has a plurality of openings; and
the film having the electron transport function includes a portion located in each opening and a portion covering the pixel defining layer except for the openings, the portion of the film having the electron transport function located in each opening serves as the ETL, and a LUMO energy level of the portion of the film having the electron transport function covering the pixel defining layer except for the openings is higher than a LUMO energy level of a surface of the ETL away from the base.