The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 27, 2023

Filed:

May. 21, 2020
Applicant:

Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Shenzhen, CN;

Inventors:

Shipan Wang, Shenzhen, CN;

Ting Shi, Shenzhen, CN;

Weiran Cao, Shenzhen, CN;

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/50 (2006.01); H01L 27/32 (2006.01); H01L 51/52 (2006.01); H01L 51/56 (2006.01); H10K 50/16 (2023.01); H10K 50/15 (2023.01); H10K 50/17 (2023.01); H10K 50/86 (2023.01); H10K 59/122 (2023.01); H10K 71/00 (2023.01);
U.S. Cl.
CPC ...
H10K 50/16 (2023.02); H10K 50/15 (2023.02); H10K 50/171 (2023.02); H10K 50/865 (2023.02); H10K 59/122 (2023.02); H10K 71/00 (2023.02);
Abstract

An embodiment of the present invention provides a display panel. The display panel includes a driving circuit layer, a first electrode layer, an auxiliary electrode layer, a pixel definition layer, and an electron transport layer disposed in a stack. The electron transport layer is connected to the auxiliary electrode layer through a first via hole defined on the pixel definition layer. By setting an energy level difference between a lowest unoccupied molecular orbital of the electron transport layer and a work function of the auxiliary electrode layer to 2.0 eV or less, it reduces an injection barrier between the auxiliary electrode layer and the electron transport layer, and relieves unevenness of luminescence of the display panel.


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