ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,557,506, issued on Feb. 17, was assigned to Semiconductor Energy Laboratory Co. Ltd. (Japan).
"Light-emitting device and display device" was invented by Satoshi Seo (Kanagawa, Japan), Toshiki Sasaki (Kanagawa, Japan), Nobuharu Ohsawa (Kanagawa, Japan), Takahiro Ushikubo (Kanagawa, Japan) and Shunpei Yamazaki (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A technique of manufacturing a display device with high productivity is provided. In addition, a high-definition display device with high color purity is provided. By adjusting the optical path length between an electrode having a reflective property and a light-emitting layer by the central wave...