IP Library › Granted Patent US 12,384,129
Granted Patent B2
US 12,384,129 · App. 17/355,554 · Granted Aug 12, 2025

Guide film and method of manufacturing display apparatus

Inventors: Hosik Shin (Yongin-si, KR); Hyejin Joo (Yongin-si, KR); Jaemin Shin (Yongin-si, KR)
Assignee: SAMSUNG DISPLAY CO., LTD.
B32B3/04B32B3/02B32B37/1284B32B2307/40B32B2457/20
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Quick Facts
Patent No.
US 12,384,129
App. No.
17/355,554
Granted
Aug 12, 2025
Kind
B2
Abstract

A guide film includes a main area, a first subsidiary area, and a second subsidiary area being apart from the first subsidiary area. The main area includes a central area having a rectangular shape in a plan view, a first side area arranged between the central area and the first subsidiary area, a second side area arranged between the central area and the second subsidiary area, and a first corner area connecting the first side area to the second side area.

Claims (31)

1. A guide film for stably changing a shape of a display panel including a pixel, the guide film comprising:

a main area including:

a central area having a rectangular shape and including a first side extending in a first direction and a second side extending in a second direction crossing the first direction in a plan view;

a first side area;

a second side area; and

a first corner area unitarily extending from the first side area and the second side area in the plan view in an unbent state of the guide film;

a first subsidiary area connected to a first edge of the main area; and

a second subsidiary area connected to a second edge of the main area, the second edge intersecting the first edge of the main area and the second subsidiary area being apart from the first subsidiary area,

wherein:

the first side area is disposed between the central area and the first subsidiary area,

the second side area is disposed between the central area and the second subsidiary area,

a Young's modulus of the first corner area is about 1 megapascal to about 50 megapascals,

a main plane extension direction of the first corner area is parallel to a main plane extension direction of the first side area and the second side area in the unbent state of the guide film,

a plurality of cut portions which extend in a third direction inclined between the first direction and the second direction is defined in the first corner area,

the plurality of cut portions has a closed-curve shape, and

a Young's modulus of the main area is less than a Young's modulus of the first subsidiary area and the second subsidiary area.

2. The guide film of claim 1 , further comprising:

a third subsidiary area connected to a third edge and apart from the second subsidiary area, the third edge being parallel to the first edge of the main area,

wherein the main area further includes:

a third side area between the central area and the third subsidiary area; and

a second corner area connecting the second side area to the third side area.

3. The guide film of claim 2 , further comprising:

a fourth subsidiary area connected to a fourth edge and apart from the third subsidiary area, the fourth edge being parallel to the second edge of the main area,

wherein the main area further includes:

a fourth side area between the central area and the fourth subsidiary area; and

a third corner area connecting the third side area to the fourth side area.

4. The guide film of claim 3 , wherein the main area, the first subsidiary area, the second subsidiary area, the third subsidiary area, and the fourth subsidiary area are provided as one area.

5. The guide film of claim 1 , wherein the first corner area includes silicon rubber.

6. The guide film of claim 1 , wherein the main area has a multi-layered structure, and the first subsidiary area and the second subsidiary area each have a same layered structure as a layered structure of the main area.

7. The guide film of claim 6 , wherein the main area includes a first layer, a second layer, and a third layer arranged between the first layer and the second layer.

8. The guide film of claim 7 , wherein a Young's modulus of the first layer and the second layer is less than a modulus of the third layer.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 23, 2021
From: SHIN, HOSIK; JOO, HYEJIN; SHIN, JAEMIN
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 056637/0939 →
Priority Claims (1)
KR 10-2020-0133739 · Oct 15, 2020 · national
Continuity (1)
Related Publication 20220118731A1 · Apr 21, 2022
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