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:
Nov. 04, 2025
Filed:
Oct. 27, 2021
Boe Technology Group Co., Ltd., Beijing, CN;
Beijing BOE Technology Development Co., Ltd., Beijing, CN;
Abstract
The present disclosure provides a light emitting device, a display substrate and a display equipment. The light emitting device includes a hole injection layer, a hole transport layer, an electron blocking layer, a light emitting layer and an electron injection layer that are stacked in sequence; the light emitting layer includes a plurality of light emitting units, and the wavelengths of lights emitted by at least two of the plurality of light emitting units are different from each other; a hole mobility of the electron blocking layer is greater than or equal to a hole mobility of the hole injection layer or the hole transport layer; and a square resistance of the hole injection layer and a square resistance of the hole transport layer are both greater than or equal to 5×10Ω/sq.