US Patent Issued to Semiconductor Energy Laboratory on July 22 for "Light-emitting element, display device, electronic device, and lighting device" (Japanese Inventors)

ALEXANDRIA, Va., July 23 -- United States Patent no. 12,365,835, issued on July 22, was assigned to Semiconductor Energy Laboratory Co. Ltd. (Atsugi, Japan).

"Light-emitting element, display device, electronic device, and lighting device" was invented by Takeyoshi Watabe (Kanagawa, Japan), Satoshi Seo (Kanagawa, Japan) and Satomi Mitsumori (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "To provide a light-emitting element with high emission efficiency and low driving voltage. The light-emitting element includes a guest material and a host material. A LUMO level of the host material is higher than a LUMO level of the host material, and a HOMO level of the guest material is lower than a HOMO le...