US Patent Issued to Semiconductor Energy Laboratory on July 1 for "Light-emitting device, display device, light-emitting apparatus, electronic device, and lighting device" (Japanese Inventors)

ALEXANDRIA, Va., July 3 -- United States Patent no. 12,349,538, issued on July 1, was assigned to Semiconductor Energy Laboratory Co. Ltd. (Atsugi, Japan).

"Light-emitting device, display device, light-emitting apparatus, electronic device, and lighting device" was invented by Takeyoshi Watabe (Kanagawa, Japan), Yuta Kawano (Kanagawa, Japan), Airi Ueda (Kanagawa, Japan), Nobuharu Ohsawa (Kanagawa, Japan) and Satoshi Seo (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A light-emitting device with high emission efficiency is provided. The light-emitting device includes an EL layer and a light-transmitting electrode. The EL layer includes a light-emitting layer and a low refractive index layer. ...