ALEXANDRIA, Va., June 19 -- United States Patent no. 12,336,393, issued on June 17, was assigned to GUANGDONG JUHUA PRINTED DISPLAY TECHNOLOGY Co. LTD (Guangdong, China).
"Light-emitting device, substrate thereof and fabrication method" was invented by Yawen Chen (Guangzhou, China) and Wen Shi (Guangzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A fabrication method for a substrate of a light-emitting device comprises: fabricating an organic photoresist layer on the surface of a substrate provided with a protruding structure, so that the organic photoresist layer covers the protruding structure, wherein by means of semi-exposing, developing and removing a portion of the thickness of a specific re...