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. 17, 2019
Filed:
May. 05, 2016
Universal Display Corporation, Ewing, NJ (US);
Siu Tung Lam, Apleichau, HK;
Raymond Kwong, Fo Tan, HK;
Chi Hang Lee, Chaiwan, HK;
Kit Yee Tsang, Shatin, HK;
Universal Display Corporation, Ewing, NJ (US);
Abstract
A compound having a structure of Formula I: is described. In the structure of Formula I, R, R, and Rare each independently 5 or 6 membered aryl or heteroaryl rings; R, R, R, and A are selected from a variety of substituents, including being joined or fused to form a ring; A is optionally bonded to at least one benzo or azabenzo ring to form fused rings; Xis B, C, N, O, S or Se; and X-Xare independently B, C or N. Formulations and devices, such as an OLEDs, that include the compound containing a structure of Formula I are also described.