ALEXANDRIA, Va., June 19 -- United States Patent no. 12,334,485, issued on June 17, was assigned to Samsung Display Co. Ltd. (Yongin-si, South Korea).

"Display device for improving internal quantum efficiency" was invented by Jin Woo Choi (Seoul, South Korea), Min Woo Kim (Hwaseong-si, South Korea), Sung Kook Park (Suwon-si, South Korea) and Sung Eun Baek (Suwon-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A display device includes a substrate, a first light-emitting element, a second light-emitting element, and a third light-emitting element on the substrate, each of the first, second, and third light-emitting elements includes a first semiconductor layer, an active layer, a second semicon...