ALEXANDRIA, Va., June 17 -- United States Patent no. 12,312,669, issued on May 27, was assigned to Chengdu BOE Optoelectronics Technology Co. Ltd. (Sichuan, China) and BOE Technology Group Co. Ltd. (Beijing).
"Mask plate assembly" was invented by Panting He (Beijing) and Leifang Xiao (Beijing).
According to the abstract* released by the U.S. Patent & Trademark Office: "A mask plate assembly is provided, including a first mask plate and multiple types of first mask strips having different effective evaporation patterns, where the first mask plate includes a first frame and a first support strip arranged between a set of opposite sides of the first frame, a first hollowed-out portion including multiple first holes is arranged in a first reg...