公开(公告)号：US20240324433A1

公开(公告)日：2024-09-26

申请号：US18380440

申请日：2023-10-16

申请人： Samsung Display Co., LTD.

发明人： Jeongkuk KIM ,  Arong KIM ,  Youngmin MOON ,  Youngho PARK ,  Heemin PARK ,  Sungsoon IM ,  Wonje CHO ,  Junho JO

IPC分类号： H10K71/16 ,  C23C14/04 ,  H10K71/20

CPC分类号： H10K71/166 ,  C23C14/042 ,  H10K71/233

摘要： An apparatus for manufacturing a display device includes a chamber, a mask assembly disposed in the chamber and facing a display substrate, a magnetic force portion which is disposed in the chamber and applies magnetic force to the mask assembly, and a deposition source which is disposed in the chamber, faces the mask assembly and supplies a deposition material so that the deposition material passes through the mask assembly and is deposited on the display substrate, where the mask assembly includes a first mask layer in which a first mask opening is defined, and a second mask layer which is disposed on the first mask layer and in which a second mask opening overlapping the first mask opening is defined, where the second mask layer includes a 2-1st mask portion, and a 2-2nd mask portion protruding from the 2-1st mask portion toward the display substrate.

公开(公告)号：US20200152876A1

公开(公告)日：2020-05-14

申请号：US16563619

申请日：2019-09-06

申请人： Samsung Display Co., Ltd.

发明人： In-bae KIM ,  Minho MOON ,  Youngho PARK ,  Sungsoon IM

IPC分类号： H01L51/00 ,  H01L27/32 ,  H01L51/56 ,  C23C14/24 ,  C23C14/04 ,  B23K26/22 ,  B23K26/352

摘要： Provided is a mask assembly including a mask sheet including a pattern part with at least one opening part, and a welding part connected to the pattern part, and a mask frame with the mask sheet mounted thereon and welded to the welding part. The mask sheet includes a first surface configured to fact the mask frame and a second surface opposite to the first surface. The welding part includes a hatching area in which a surface roughness of the second surface is larger than that of the second surface in the pattern part.