IP Library › Granted Patent US 12,453,277
Granted Patent B2
US 12,453,277 · App. 18/215,605 · Granted Oct 21, 2025

Display apparatus and method of manufacturing the same

Inventor: Jaehoon Jung (Yongin-si, KR)
Assignee: SAMSUNG DISPLAY CO., LTD.
H10K77/10B32B3/02B32B27/283B32B27/36B32B27/40B32B37/10B32B38/10B32B38/105B32B2250/04B32B2307/546B32B2457/20H10K59/12H10K59/8731H10K59/8791
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Quick Facts
Patent No.
US 12,453,277
App. No.
18/215,605
Granted
Oct 21, 2025
Kind
B2
Abstract

A display apparatus includes: a display panel including a display area, a peripheral area, a bending area, and a pad area; and a lower protection layer arranged on a rear surface of the display panel and including a first portion and a second portion, where the first portion corresponds to the display area and the peripheral area, and the second portion corresponds to the pad area. The first portion of the lower protection layer includes a material different from a material of the second portion. The display area is configured to display an image, the peripheral area is outside the display area and does not display an image, the bending area is on one side of the peripheral area, and the pad area is spaced apart from the peripheral area with the bending area therebetween.

Claims (30)

1. A method of manufacturing a display apparatus, the method comprising:

preparing a display panel including a display area, a peripheral area, a bending area, and a pad area, wherein the peripheral area is outside the display area, the bending area is disposed on one side of the peripheral area, and the pad area is spaced apart from the peripheral area with the bending area therebetween;

attaching a lower protection layer to a rear surface of the display panel, wherein the lower protection layer includes a first portion and a second portion, the first portion corresponds to the display area and the peripheral area, and the second portion corresponds to the pad area;

attaching a guide film to a rear surface of the lower protection layer;

applying a tensile force to the guide film and transforming a shape of the display panel;

attaching a cover window to a front surface of the display panel; and

removing the guide film,

wherein a Young's modulus of the first portion of the lower protection layer is less than a Young's modulus of the second portion.

2. The method of claim 1 , wherein the first portion of the lower protection layer includes poly dimethylsiloxane or thermoplastic polyurethane.

3. The method of claim 1 , wherein the Young's modulus of the first portion of the lower protection layer is greater than about 0 MPa and less than about 100 MPa.

4. The method of claim 1 , wherein the second portion of the lower protection layer includes polyethylene terephthalate.

5. The method of claim 1 , wherein the guide film has a Young's modulus greater than the Young's modulus of the first portion of the lower protection layer.

6. The method of claim 1 , wherein the guide film includes polyethylene terephthalate.

7. The method of claim 1 , wherein the guide film includes:

a central region;

a first edge area connected to a first edge of the central region; and

a second edge area connected to a second edge of the central region crossing the first edge.

8. The method of claim 7 , wherein the display area of the display panel includes:

a front display area;

a first side display area connected to a first edge of the front display area; and

a second side display area connected to a second edge of the front display area crossing the first edge of the front display area, and

the peripheral area of the display panel includes a corner area arranged at a corner side where the first edge of the front display area meets the second edge of the front display area, and the corner area is adjacent to the first side display area and the second side display area.

9. The method of claim 8 , wherein, when the guide film is attached to the rear surface of the lower protection layer, the central region of the guide film includes a concave corner not to overlap the corner area of the display panel in a plan view.

10. The method of claim 7 , wherein the display area of the display panel includes:

a front display area;

a first side display area connected to a first edge of the front display area;

a second side display area connected to a second edge of the front display area crossing the first edge of the front display area; and

a corner display area adjacent to the first side display area and the second side display area.

11. The method of claim 10 , wherein, when the guide film is attached to the rear surface of the lower protection layer, the central region of the guide film includes a concave corner not to overlap the corner display area of the display panel in a plan view.

12. The method of claim 1 , further comprising, after the attaching of the lower protection layer to the rear surface of the display panel, attaching a display circuit board in the pad area of the front surface of the display panel.

Priority Claims (1)
KR 10-2021-0040504 · Mar 29, 2021 · national
Continuity (2)
Division 17523995 · Nov 11, 2021
Related Publication 20230339204A1 · Oct 26, 2023
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