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:
Apr. 07, 2026
Filed:
Jul. 18, 2023
Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Wuhan, CN;
Haoran Wang, Wuhan, CN;
Abstract
Embodiments of the present disclosure provide a display panel, in which a hole control layer is disposed on a hole transport layer, a light-emitting material layer is disposed on the hole control layer, and the hole control layer includes a first sub-hole control layer and a second sub-hole control layer. An energy difference between a HOMO energy level of the first sub-hole control layer and a HOMO energy level of the second sub-hole control layer is greater than or equal to 0.2 eV, and the HOMO energy level of the second sub-hole control layer is greater than a HOMO energy level of the light-emitting material layer and less than a HOMO energy level of the hole transport layer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile