IP Library Granted Patent US 12,698,555
Granted Patent B2
US 12,698,555 · App. 18/817,418 · Granted Aug 4, 2026

Method and device for manufacturing display apparatus

Inventors: Jeongkuk Kim (Yongin-si, KR); Duckjung Lee (Yongin-si, KR); Jihyun Jung (Yongin-si, KR)
Assignee: SAMSUNG DISPLAY CO., LTD.
C23C14/042
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12,698,555
App. No.
18/817,418
Granted
Aug 4, 2026
Kind
B2
Abstract

A device for manufacturing a display apparatus includes a mask assembly, and a magnetic force portion facing the mask assembly, where the magnetic force portion applies a magnetic force toward the mask assembly. The mask assembly includes a mask frame, in which first openings are defined therethrough and a second opening is defined in a first surface thereof, where the second opening is arranged between two adjacent first openings among the first openings, a mask membrane disposed on a second surface of the mask frame opposite to the first surface and overlapping at least one of the first openings, and a support member on the first surface of the mask frame and including a magnetic body, where the support member is disposed on a surface of the mask frame defining a first opening or a surface of the mask frame defining the second opening.

Claims (19)

1 . A device for manufacturing a display apparatus, the device comprising:

a mask assembly; and

a magnetic force portion facing the mask assembly, wherein the magnetic force portion applies a magnetic force toward the mask assembly,

wherein the mask assembly comprises:

a mask frame in which a plurality of first openings is defined therethrough in a thickness direction and a second opening is defined in a first surface thereof in a recess or groove form, wherein the second opening is arranged between two adjacent first openings among the plurality of first openings;

a mask membrane disposed on a second surface of the mask frame, which is opposite to the first surface, and overlapping at least one of the plurality of first openings; and

a support member disposed on the first surface of the mask frame and comprising a magnetic body, wherein the support member is disposed on at least one selected from a surface of the mask frame defining a first opening and a surface of the mask frame defining the second opening.

2 . The device of claim 1 , wherein a depth of the second opening is less than a thickness of the mask frame.

3 . The device of claim 1 , wherein the support member defines a groove overlapping the second opening.

4 . The device of claim 1 , wherein a width of the second opening changes in a depth direction of the second opening.

5 . The device of claim 1 , wherein a width of the second opening is about a half of a distance between the two adjacent first openings or greater.

6 . The device of claim 1 , wherein the support member completely fills in the second opening.

7 . The device of claim 1 , wherein a third opening is defined in the first surface of the mask frame,

wherein the third opening is arranged outside the plurality of first openings,

wherein a portion of the support member is arranged in the third opening.

8 . The device of claim 1 , wherein the second opening is provided in plural,

wherein a plurality of second openings are apart from each other and arranged between the two adjacent first openings among the plurality of first openings.

9 . The device of claim 1 , wherein, in a plan view, the second opening at least partially surrounds one of the plurality of first openings.

10 . The device of claim 1 , wherein a thickness of the support member is about 10 angstroms or greater.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 7, 2026
From: KIM, JEONGKUK; LEE, DUCKJUNG; JUNG, JIHYUN
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 074300/0014 →
Priority Claims (1)
KR 10-2024-0017624 · Feb 5, 2024 · national
Continuity (1)
Related Publication 20250250662A1 · Aug 7, 2025
References Cited (28)
US 9045818B2 · Gersdorff et al. · 2015 [cited by applicant]
US 10072328B2 · Ghosh · 2018 [cited by examiner]
US 10386731B2 · Ghosh · 2019 [cited by examiner]
US 10396283B2 · Takeda · 2019 [cited by examiner]
US 10644239B2 · Ghosh · 2020 [cited by examiner]
US 10651386B2 · Takeda · 2020 [cited by examiner]
US 10873029B2 · Takeda · 2020 [cited by examiner]
US 10876199B2 · Kishimoto · 2020 [cited by examiner]
US 11038009B2 · Ju · 2021 [cited by examiner]
US 11275315B2 · Ghosh · 2022 [cited by examiner]
US 11877500B2 · Kim · 2024 [cited by examiner]
US 12266535B2 · Reddy · 2025 [cited by examiner]
US 20080268164A1 · Thayer · 2008 [cited by examiner]
US 20160141498A1 · Ghosh · 2016 [cited by examiner]
US 20180062079A1 · Ko · 2018 [cited by examiner]
US 20180190906A1 · Takeda · 2018 [cited by examiner]
US 20190319190A1 · Nakamura · 2019 [cited by examiner]
US 20190363256A1 · Takeda · 2019 [cited by examiner]
US 20200044010A1 · Ju · 2020 [cited by examiner]
US 20200235299A1 · Takeda · 2020 [cited by examiner]
US 20200263287A1 · Kishimoto · 2020 [cited by examiner]
US 20210098702A1 · Takeda · 2021 [cited by examiner]
US 20210273207A1 · Kishimoto · 2021 [cited by examiner]
US 20210391541A1 · Kim · 2021 [cited by examiner]
US 20220406610A1 · Reddy · 2022 [cited by examiner]
KR 1020110045217A · 2011 [cited by applicant]
KR 101673126B1 · 2016 [cited by applicant]
KR 1020220072864A · 2022 [cited by applicant]