IP Library › Granted Patent US 12,612,689
Granted Patent B2
US 12,612,689 · App. 18/324,623 · Granted Apr 28, 2026

Mask stick and mask assembly including the same

Inventors: Sanghoon Kim (Yongin-si, KR); Yeonju Kang (Yongin-si, KR); Sang Shin Lee (Yongin-si, KR); Seung Jin Lee (Yongin-si, KR); Minji Jang (Yongin-si, KR)
Assignee: Samsung Display Co., Ltd.
C23C14/042C23C14/24H10K59/40
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Quick Facts
Patent No.
US 12,612,689
App. No.
18/324,623
Granted
Apr 28, 2026
Kind
B2
Abstract

One or more embodiments provides a mask assembly including a frame defining an opening, a mask stick above the frame, extending in a first direction, defining through-holes, and including pattern areas that include one or more first non-hole portions in which no through-hole exists, and one or more second non-hole portions in which no through-hole exists, and a first support stick between the frame and the mask stick, extending in a second direction crossing the first direction, and overlapping the one or more second non-hole portions.

Claims (14)

1 . A mask assembly comprising:

a frame defining an opening;

a mask stick above the frame, extending in a first direction, defining through-holes therein, and comprising:

pattern areas that comprise one or more first non-hole portions in which no through-hole exists at a first side of the mask stick; and

one or more second non-hole portions in which no through-hole exists at a second side of the mask stick; and

a first support stick between the frame and the mask stick, extending in a second direction crossing the first direction, and overlapping the one or more second non-hole portions,

wherein the second side is disposed opposite to the first side with respect to a longitudinal central axis of the mask stick.

2 . The mask assembly of claim 1 , wherein the pattern areas are divided by areas where the mask stick and the first support stick overlap.

3 . The mask assembly of claim 1 , wherein a number of the one or more first non-hole portions is equal to a number of the one or more second non-hole portions of the mask stick.

4 . The mask assembly of claim 1 , wherein the mask stick is configured to be fixed to the frame to be tensioned in the first direction.

5 . The mask assembly of claim 1 , wherein the one or more first non-hole portions and the one or more second non-hole portions have a same planar area.

6 . The mask assembly of claim 1 , wherein the one or more first non-hole portions or the one or more second non-hole portions comprises concave portions at a surface of the mask stick, and having a thickness that is less than a thickness of the mask stick.

7 . The mask assembly of claim 1 , wherein the one or more first non-hole portions or the one or more second non-hole portions comprises concave portions at regular intervals.

8 . The mask assembly of claim 1 , wherein the one or more first non-hole portions or the one or more second non-hole portions comprises concave portions having a same planar shape.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 5, 2023
From: KIM, SANGHOON; KANG, YEONJU; LEE, SANG SHIN; LEE, SEUNG JIN; JANG, MINJI
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 063850/0291 →
Priority Claims (1)
KR 10-2022-0113639 · Sep 7, 2022 · national
Continuity (1)
Related Publication 20240076772A1 · Mar 7, 2024
References Cited (7)
US 20160122860A1 · Kim · 2016 [cited by examiner]
US 20200357998A1 · Bai · 2020 [cited by examiner]
US 20200385856A1 · Yamabuchi · 2020 [cited by examiner]
US 20210265396A1 · Kim et al. · 2021 [cited by applicant]
KR 1020200026354A · 2020 [cited by applicant]
KR 1020200039901A · 2020 [cited by applicant]
KR 102404576 · 2022 [cited by applicant]