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. 21, 2023
Filed:
Jul. 10, 2020
The Regents of the University of Michigan, Ann Arbor, MI (US);
The University of Southern California, Los Angeles, CA (US);
Stephen R. Forrest, Ann Arbor, MI (US);
Yue Qu, Ann Arbor, MI (US);
Haonan Zhao, Ann Arbor, MI (US);
Mark E. Thompson, Los Angeles, CA (US);
The Regents of the University of Michigan, Ann Arbor, MI (US);
The University of Southern California, Los Angeles, CA (US);
Abstract
An OLED device comprises a substrate, a first electrode positioned over the substrate, a second electrode positioned over the first electrode, at least one emissive layer positioned between the first and second electrodes in a first region of the OLED device, and a multilayer dielectric reflector stack, comprising a plurality of dielectric reflector layers positioned between the substrate and the first electrode, wherein the multilayer dielectric reflector stack is configured to form an optical cavity with the emissive layer having a Purcell Factor of at least 3.