ALEXANDRIA, Va., July 14 -- United States Patent no. 12,684,934, issued on July 14, was assigned to Sharp K.K. (Sakai City, Japan).
"Light-emitting device including quantum dots for enhancing luminous efficiency" was invented by Yoshihiro Ueta (Sakai City, Japan) and Keisuke Kitano (Sakai City, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A light-emitting device includes: a first electrode; a second electrode; a light-emitting layer disposed between the first electrode and the second electrode; and a hole transport layer disposed between the first electrode and the light-emitting layer, wherein the light-emitting layer includes a first quantum dot including a first core with an emission peak in a vis...