US Patent Issued to Beijing BOE Technology Development on Nov. 3 for "Light-emitting device and preparation method thereof, and display apparatus" (Chinese Inventors)

ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,787,539, issued on Nov. 3, was assigned to Beijing BOE Technology Development Co. Ltd. (Beijing).

"Light-emitting device and preparation method thereof, and display apparatus" was invented by Xiaobo Du (Beijing), Haidong Wu (Beijing) and Yansong Li (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "A light-emitting device includes at least one light-emitting unit including a luminescent layer, an electron functional layer and a hole functional layer; a material of the luminescent layer includes host materials and guest materials, the host materials include hole transport materials and electron transport materials; a material of the electron function...