US Patent Issued to Universal Display on Aug. 5 for "Organic electroluminescent materials and devices" (American, Taiwanese Inventors)

ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,378,197, issued on Aug. 5, was assigned to Universal Display Corp. (Ewing, N.J.).

"Organic electroluminescent materials and devices" was invented by Hsiao-Fan Chen (Taipei, Taiwan), Peter Wolohan (Princeton Junction, N.J.) and Nicholas J. Thompson (Hamilton, N.J.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A compound having a structure of Formula I,is provided. In Formula I, Z1 to Z16 are each CR or N; three consecutive ones of Z1 to Z16 within the same ring cannot be N; each R is independently a hydrogen or a substituent selected from a variety of substituents; at least one R includes and electron donor substituent; at least one R includes an electro...