公开(公告)号：US20250115987A1

公开(公告)日：2025-04-10

申请号：US18760814

申请日：2024-07-01

Applicant: Samsung Display Co., Ltd.

Inventor： Jeongkuk Kim ,  Kyongtae Yu ,  Sungwon Cho ,  Junho Jo

IPC: C23C14/04 ,  C23C14/12 ,  H10K71/16

Abstract: A mask assembly includes: a mask frame having an opening region; and a first mask sheet covering the mask frame. The first mask sheet includes: a first layer including a plurality of first ribs extending in a first direction and a plurality of second ribs extending in a second direction crossing the first direction and having a plurality of first openings defined by the first ribs and the second ribs; a second layer on a first surface of the first layer and extending around the first openings; and a third layer on a second surface of the first layer and having a plurality of pattern holes overlapping the first openings.