US Patent Issued to Semiconductor Energy Laboratory on June 17 for "Light-emitting element, display device, electronic device, and lighting device each having thermally-activated delayed fluorescent organic compound" (Japanese Inventors)

ALEXANDRIA, Va., June 19 -- United States Patent no. 12,336,369, issued on June 17, was assigned to Semiconductor Energy Laboratory Co. Ltd. (Japan).

"Light-emitting element, display device, electronic device, and lighting device each having thermally-activated delayed fluorescent organic compound" was invented by Nobuharu Ohsawa (Kanagawa, Japan) and Satoshi Seo (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A light-emitting element having high emission efficiency is provided.The light-emitting element includes a first organic compound, a second organic compound, and a third organic compound. The first organic compound has a function of converting triplet excitation energy into light emissi...