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. 03, 2019
Filed:
Jan. 05, 2017
Universal Display Corporation, Ewing, NJ (US);
Michael S. Weaver, Princeton, NJ (US);
Nicholas J. Thompson, Trenton, NJ (US);
Jason Brooks, Philadelphia, PA (US);
Geza Szigethy, Ewing, NJ (US);
Glenn Morello, Pittsburgh, PA (US);
Jun Deng, Murrysville, PA (US);
Peter I. Djurovich, Long Beach, CA (US);
Hsiao-Fan Chen, Lawrenceville, NJ (US);
Universal Display Corporation, Ewing, NJ (US);
Abstract
An organic light emitting device (OLED) is provided. The OLED has an anode, a cathode, and an emission layer, disposed between the anode and the cathode, including a first emitting compound; wherein the first emitting compound is capable of functioning as a blue phosphorescent emitter in the OLED at room temperature; wherein the first emitting compound has PLQY of less than 90% at room temperature; wherein the OLED has an external quantum efficiency of between 8% and 20% at 1 mA/cm.