ALEXANDRIA, Va., June 12 -- United States Patent no. 12,302,755, issued on May 13, was assigned to Samsung Display Co. Ltd. (Yongin-si, South Korea).
"Organic electroluminescent device emitting blue light" was invented by Georgios Liaptsis (Mannheim, Germany), Christian Kasparek (Heidelberg, Germany), Harald Fluegge (Karlsruhe, Germany), Sandra Bonus (Cologne, Germany), Patrick Pingel (Potsdam, Germany), Jaime Leganes Carballo (Heidelberg, Germany) and Irina Roerich (Mannheim, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to organic electroluminescent devices comprising a light-emitting layer B comprising a host material HB, a first thermally activated delayed fluoresce...