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.
Patent No.:
Date of Patent:
May. 19, 2026
Filed:
Jun. 06, 2022
Hefei Boe Joint Technology Co., Ltd., Hefei, CN;
Boe Technology Group Co., Ltd., Beijing, CN;
Hefei BOE Joint Technology Co., Ltd., Hefei, CN;
BOE Technology Group Co., Ltd., Beijing, CN;
Abstract
The present application relates to a display substrate, a method of manufacturing thereof and a display device. The display substrate includes a base and sub-pixels on the base. Each of the sub-pixels includes a light-emitting device. The light-emitting device includes an anode layer, a light-emitting material layer, an electron transport layer, an electron injection layer and a cathode layer; the light-emitting device includes at least one electron injection layer, and the light-emitting device further includes at least one high impedance layer. The high impedance layer includes a first high impedance film layer, at least one second high impedance film layer located between the first high impedance film layer and the cathode layer, and at least one third high impedance film layer located between the first high impedance film layer and the electron injection layer.