Inventor
HAN QIAONAN
CN2 patents
Patents
2 patentsUS11560616B2Jan 24, 2023
Mask device, mask plate, and frame
BOE TECHNOLOGY GROUP CO LTD2 citations69
US11355707B2Jun 7, 2022
Mask having shielding part within opening and manufacturing method thereof, evaporation method and display screen with active area surrounding functional component area
BOE TECHNOLOGY GROUP CO LTD2 citations68