IP Library Granted Patent US 12,477,933
Granted Patent B2
US 12,477,933 · App. 18/189,086 · Granted Nov 18, 2025

Apparatus for manufacturing display device and method of manufacturing display device

Inventors: Hyunwoo Lee (Yongin-si, KR); Wonjun Lee (Yongin-si, KR); Junhyeong Kim (Yongin-si, KR)
Assignee: Samsung Display Co., Ltd.
H10K59/873H10K71/00B65H2801/61H10K2102/311
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Quick Facts
Patent No.
US 12,477,933
App. No.
18/189,086
Granted
Nov 18, 2025
Kind
B2
Abstract

An apparatus for manufacturing a display device includes: a display panel comprising a display area, an adjacent area surrounding the display area, and a bending area extending from one side of the adjacent area; a stage on which the display panel is located; a first applicator configured to discharge a first material to the bending area of the display panel; and a second applicator configured to discharge a second material to the adjacent area of the display panel, the second material being different from the first material, wherein a position of at least one of the first applicator or the second applicator is changeable in a first direction.

Claims (35)

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

a display panel comprising a display area, an adjacent area surrounding the display area, and a bending area extending from one side of the adjacent area;

a stage on which the display panel is located;

a first applicator configured to discharge a first material to the bending area of the display panel; and

a second applicator configured to discharge a second material to the adjacent area of the display panel, the second material being different from the first material,

wherein a position of at least one of the first applicator or the second applicator is changeable in a first direction.

2 . The apparatus of claim 1 , wherein the display panel further comprises a dam on at least a portion of the adjacent area and at least a portion of the bending area.

3 . The apparatus of claim 2 , wherein the dam includes a same material as the first material.

4 . The apparatus of claim 2 , wherein the adjacent area comprises a first portion adjacent to the display area, and a second portion between the first portion and the dam.

5 . The apparatus of claim 4 , wherein the bending area comprises a third portion and a fourth portion, the third portion is adjacent to the dam, and

a shortest distance from the third portion to the adjacent area in the first direction is less than a shortest distance from the fourth portion to the adjacent area in a plan view.

6 . The apparatus of claim 5 , wherein the second applicator applies the second material onto the first portion of the adjacent area at a same time when the first applicator applies the first material onto the third portion of the bending area.

7 . The apparatus of claim 1 , wherein a moving speed of the stage is changeable.

8 . The apparatus of claim 3 , wherein a discharge amount of the first material discharged from the first applicator is configured to be adjusted according to a moving speed of the stage.

9 . A method of manufacturing a display device, the method comprising:

placing a display panel on a stage, the display panel comprising a display area, an adjacent area surrounding the display area, and a bending area extending from one side of the adjacent area;

forming a dam on at least a portion of the adjacent area and at least a portion of the bending area; and

applying a first material onto the bending area and a second material onto the adjacent area, the second material being different from the first material.

10 . The method of claim 9 , wherein the dam includes a same material as the first material.

11 . The method of claim 9 , wherein the first material is discharged from a first applicator.

12 . The method of claim 11 , wherein the second material is discharged from a second applicator.

13 . The method of claim 12 , wherein the adjacent area comprises a first portion adjacent to the display area, and a second portion between the first portion and the dam.

14 . The method of claim 13 , wherein the bending area comprises a third portion and a fourth portion,

the third portion is adjacent to the dam, and

a shortest distance from the third portion to the adjacent area in a first direction is less than a shortest distance from the fourth portion to the adjacent area in a plan view.

15 . The method of claim 14 , wherein the applying of the first material onto the bending area and the second material onto the adjacent area comprises discharging the first material from the first applicator to the third portion of the bending area, and discharging the second material from the second applicator to the first portion of the adjacent area.

16 . The method of claim 15 , wherein, in the applying of the first material onto the bending area and the second material onto the adjacent area,

the first material and the second material are concurrently discharged from the first applicator and the second applicator, respectively.

17 . The method of claim 15 , further comprising:

after the applying of the first material onto the bending area and the second material onto the adjacent area,

discharging the second material from the second applicator to the second portion of the adjacent area; and

discharging the first material from the first applicator to the fourth portion of the bending area.

18 . The method of claim 14 , further comprising moving the stage in a second direction crossing the first direction.

19 . The method of claim 18 , further comprising changing a moving speed of the stage.

20 . The method of claim 11 , further comprising adjusting a discharge amount of the first material discharged from the first applicator according to a moving speed of the stage.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 11, 2023
From: LEE, HYUNWOO; LEE, WONJUN; KIM, JUNHYEONG
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 063286/0767 →
Priority Claims (1)
KR 10-2022-0084615 · Jul 8, 2022 · national
Continuity (1)
Related Publication 20240016038A1 · Jan 11, 2024
References Cited (8)
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