Samsung Display Co., Ltd.

Minji Jang

Jongbum Kim

Sanghoon Kim

Daewon Baek

Sangshin Lee

Jongsung Park

Jongdae Lee

Sangheon Jeon

Hongkyun Ahn

A mask including: a deposition pattern portion including a plurality of deposition holes that are configured to have deposition material pass therethrough; and a dummy pattern portion outside the deposition pattern portion, wherein the dummy pattern portion includes an auxetic structure having a negative Poisson's ratio.

Mask, mask assembly, and apparatus for manufacturing display apparatus

A mask assembly includes a first mask area including first opening areas, and a second mask area including second opening areas having centers located at vertices of virtual squares in a row direction and a column direction, half-etching areas having centers located at centers of the virtual squares, and a non-etching area surrounding the second opening areas and the half-etching areas. Each of the second opening areas includes a base portion and at least one protrusion portion protruding from the base portion.

Mask assembly and apparatus for manufacturing display device

Provided are a mask-frame assembly including (i) a frame including an opening portion, (ii) an open mask coupled to the frame to cover the opening portion and including a main portion including a plurality of openings located in the opening portion, a first rib connected to the main portion and extending in a first direction away from a center of the main portion, a second rib connected to the main portion and extending in a second direction across the first direction and away from the center of the main portion, and a first bridge portion connecting a first edge of the first rib in a direction toward the second rib to a second edge of the second rib in a direction toward the first rib, and (iii) mask sticks overlapping the open mask, having both ends coupled to the frame, and including a plurality of holes.

Mask-frame assembly and method of manufacturing organic light emitting display apparatus by using the same

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Yongin-si, South Korea

Minji Jang