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:
Sep. 30, 2025
Filed:
Aug. 03, 2021
The Regents of the University of Michigan, Ann Arbor, MI (US);
Yongbum Park, Ann Arbor, MI (US);
Changyeong Jeong, Ann Arbor, MI (US);
Lingjie Jay Guo, Ann Arbor, MI (US);
The Regents of The University of Michigan, Ann Arbor, MI (US);
Abstract
A method of increasing light emission efficiency in an organic light emitting diode (OLED) eliminates or reduces at least one waveguide mode selected from the group consisting of: transverse electric (TE0) mode, transverse magnetic (TM1) mode, and combinations thereof by disposing an ultrathin electrically conductive transparent metallic electrode having a first polarity within the OLED. The OLED has a transparent substrate on which the ultrathin electrically conductive transparent metallic electrode is disposed. It also has an emissive active assembly for generating photons defining first and second opposite sides. A conductive transparent metallic electrode is disposed along the first side. A second transparent electrode having a second polarity opposite to the first polarity disposed adjacent to the second side of emissive active assembly. The methods include increasing an external quantum efficiency of the organic light emitting diode to ≥about 20%. OLEDs with such a design are also contemplated.