IP Library › Granted Patent US 12,426,422
Granted Patent B2
US 12,426,422 · App. 18/018,493 · Granted Sep 23, 2025

Display device having support module on side surface of substrate

Inventors: Sungguk Lee (Seoul, KR); Dohyung Lee (Seoul, KR); Sangdae Park (Seoul, KR); Hwankuk Yuh (Seoul, KR); Jaegwang Um (Seoul, KR)
Assignee: LG ELECTRONICS INC.
H10H20/857H01L25/0753
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Quick Facts
Patent No.
US 12,426,422
App. No.
18/018,493
Granted
Sep 23, 2025
Kind
B2
Abstract

Provided is a display device. The display device includes a substrate, a display panel including a display disposed on a front surface of the substrate and a flexible base material extending from the display to surround a portion of each of a side surface and a rear surface of the substrate, and a support layer disposed between the side surface of the substrate and the flexible base material to support the flexible base material. The flexible base material includes: a pair of curved portions spaced apart from the support layer and a side cover portion that is configured to connect the pair of curved portions to each other and is in contact with the support layer.

Claims (55)

1. A display device comprising:

a substrate;

a display panel comprising a display and a flexible base material,

wherein the display is disposed on a front surface of the substrate, and the flexible base material extends from the display to surround at least a portion of each of a side surface and a rear surface of the substrate; and

a support layer disposed between the side surface of the substrate and the flexible base material to support the flexible base material,

wherein the flexible base material comprises:

a pair of curved portions spaced apart from the support layer; and

a side cover portion connecting the pair of curved portions to each other, and being in contact with the support layer, and

wherein the support layer is coated on the flexible base material.

2. The display device according to claim 1 , wherein the display panel comprises:

a flexible substrate that is in contact with the substrate;

a line electrode disposed on the flexible substrate;

a plurality of semiconductor light emitting elements disposed on the line electrode; and

a protective layer covering the line electrode and the plurality of semiconductor light emitting elements.

3. The display device according to claim 1 , wherein the side cover portion of the flexible base material is spaced apart from the side surface of the substrate, and is substantially parallel to the side surface of the substrate.

4. The display device according to claim 1 , wherein a curvature radius of each of the pair of curved portions of the flexible base material is less than half of a thickness of the substrate.

5. The display device according to claim 1 , wherein a length of the support layer is less than a length obtained by subtracting twice a curvature radius of each of the pair of curved portions from a thickness of the substrate.

6. The display device according to claim 1 , further comprising an adhesive coated to the support layer and the flexible base material to adhere to the side surface of the substrate.

7. The display device according to claim 1 , wherein the support layer comprises:

a first surface configured to face the side surface of the substrate; and

a second surface configured to face the flexible base material,

wherein the second surface of the support layer has an area or length greater than an area or length of the first surface of the support layer.

8. A display device, comprising:

a plurality of display modules disposed at one or more predetermined intervals,

wherein each of the plurality of display modules comprises:

a substrate;

a display panel comprising a display disposed on a front surface of the substrate and a flexible base material extending from the display to surround at least a portion of each of a side surface and a rear surface of the substrate; and

a support layer disposed between the side surface of the substrate and the flexible base material to support the flexible base material,

wherein the flexible base material comprises:

a pair of curved portions spaced apart from the support layer; and

a side cover portion connecting the pair of curved portions to each other, the side cover portion being in contact with the support layer and being substantially parallel to the side surface of the substrate,

wherein the flexible base material is in contact with another display panel adjacent thereto, and

wherein the display device further comprises an adhesive coated to the support layer and the flexible base material to adhere to the side surface of the substrate, for the plurality of display modules.

9. The display device according to claim 8 , wherein the display panel comprises:

a flexible substrate that is in contact with the substrate;

a line electrode disposed on the flexible substrate;

a semiconductor light emitting element disposed on the line electrode; and

a protective layer covering the line electrode and the semiconductor light emitting element.

10. The display device according to claim 8 , wherein a curvature radius of each of the pair of curved portions is less than half of a thickness of the substrate.

11. The display device according to claim 8 , wherein a length of the support layer is less than a length obtained by subtracting twice a curvature radius of each of the pair of curved portions from a thickness of the substrate.

12. The display device according to claim 8 , wherein the support layer is coated on the flexible base material.

13. A method for manufacturing a display device, the method comprising:

forming a display panel on a front surface of a substrate;

removing a portion of the substrate to expose a portion of a rear surface of the display panel;

applying a support layer to the exposed rear surface of the display panel;

coating an adhesive to the support layer and the display panel; and

bending the display panel to be fixed to portions of a side surface and a rear surface of the substrate,

wherein the display panel comprises:

a pair of curved portions spaced apart from the support layer; and

a side cover portion connecting the pair of curved portions to each other and being in contact with the support layer.

14. The method according to claim 13 , wherein the side cover portion is spaced apart from the side surface of substrate and is substantially parallel to the side surface of the substrate.

15. The method according to claim 13 , further comprising providing an adhesive coated to the support layer and the flexible base material to adhere to the side surface of the substrate.

16. The method according to claim 13 , wherein a curvature radius of each of the pair of curved portions is less than half of a thickness of the substrate.

17. The method according to claim 13 , wherein a length of the support layer is less than a length obtained by subtracting twice a curvature radius of each of the pair of curved portions from a thickness of the substrate.

18. The method according to claim 13 , wherein the side surface of the substrate is substantially perpendicular to the front surface and the rear surface of the substrate.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 30, 2023
From: LEE, SUNGGUK; LEE, DOHYUNG; PARK, SANGDAE; YUH, HWANKUK; UM, JAEGWANG
To: LG ELECTRONICS INC.
Reel/Frame 062530/0639 →
Continuity (1)
Related Publication 20230290918A1 · Sep 14, 2023
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