MASK ASSEMBLY, AND APPARATUS AND METHOD FOR MANUFACTURING DISPLAY APPARATUS

• Main Authors: KIM, Seil, KIM, Minseok, YI, Sangmin, PARK, Jongsung
• Format: Patent
• Language: English; French; German
• Published: 19.04.2023
• Subjects: CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; ELECTRICITY; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION

A mask assembly (500) includes: a mask frame (530) that includes an opening area (OA); a first mask (510) arranged on the mask frame (530) and that includes at least one first opening portion (511) in an area corresponding to the opening area (OA); and a second mask (520) arranged on the first mask (510) and that includes a plurality of second opening portions (521), wherein the plurality of second opening portions (521) overlap the at least one first opening portion (511) in a direction perpendicular to a surface of the first mask (510).