Display device

Patent metadata

Field	Value
Publication number	US-10869388-B2
Application number	US-201916376884-A
Country	US
Kind code	B2
Filing date	Apr 5, 2019
Priority date	Jul 30, 2013
Publication date	Dec 15, 2020
Grant date	Dec 15, 2020

Abstract

A display device includes a flexible first substrate including a display part, a bending part at one side of the display part, and a pad part at one side of the bending part; a back film adhered to a portion corresponding to the display part and the pad part on a bottom of the first substrate; a supporting member disposed below a portion of the back film corresponding to the display part, wherein the supporting member is not bent, and wherein the bending part of the first substrate is bent along a side of the supporting member; and a second substrate facing the display part.

First claim

What is claimed is:

1. A display device comprising:
a flexible first substrate including a display part, a bending part at one side of the display part, and a pad part at one side of the bending part;
a back film adhered to a portion corresponding to the display part and the pad part on a bottom of the flexible first substrate;
a supporting member placed below a portion of the back film corresponding to the display part,
wherein the supporting member is not bent and extends beyond an outer edge of the display part, and
wherein the bending part of the flexible first substrate is bent along a side of the supporting member; and
a second substrate facing the display part,
wherein the back film includes a first film and a second film separated from the first film, and a top adhesive layer,
wherein between a bottom surface of the display part of the flexible first substrate and a top surface of the supporting member, the first film and the top adhesive layer on the first film are provided, and
wherein between a bottom surface of the supporting member and a top surface of the pad part of the flexible first substrate, the second film and the top adhesive layer on the second film are provided.

2. The display device of claim 1 , wherein the back film comprises:
a bottom adhesive layer adhered to a base back film; and
a bottom release layer adhered to a surface of the bottom adhesive layer,
wherein a portion of the bottom adhesive layer corresponding to the bending part is cut out.

3. The display device of claim 1 , wherein the supporting member is adhered to a lower surface of the portion of the back film corresponding to the display part.

4. The display device of claim 1 , further comprising:
a flexible circuit board provided below the pad part and the support member, and extending substantially parallel to the support member.

5. The display device of claim 4 , further comprising:
a driving integrated circuit (IC) provided below the flexible circuit board and the display part of the flexible first substrate.

6. The display device of claim 5 , further comprising:
an adhesive part provided between the bottom surface of the supporting member and a top surface of the flexible circuit board, and provided below the display part of the flexible first substrate.

7. The display device of claim 1 , wherein the side of the supporting member along which the bending part is bent, contacts an inner surface of the bending part.

8. The display device of claim 1 , wherein a side end of the first film of the back film is aligned with a side end of the display part of the flexible first substrate.

9. The display device of claim 1 , wherein a side end of the second film of the back film is aligned with a side end of the display part of the flexible first substrate.

10. The display device of claim 8 , wherein a side end of the second film of the back film is aligned with a side end of the display part of the flexible first substrate.

11. The display device of claim 1 , wherein the support member has a rounded end.

12. A display device comprising:
a flexible first substrate including a display part, a bending part at one side of the display part, and a pad part at one side of the bending part;
a back film including:
a first film and a top adhesive first part provided on the first film,
a second film and a top adhesive second part provided on the second film, and
a gap between the first and second films and between the top adhesive first part and the top adhesive second part,

wherein the flexible first substrate is adhered to the top adhesive first part and the top adhesive second part that the first film corresponds to the display part, the gap corresponds to the bending part, and the second film corresponds to the pad part; and
a supporting member adhered to a bottom surface of the first film below the display part,
wherein the supporting member is not bent and extends beyond an outer edge of the display part.

13. The display device of claim 12 , wherein the bending part including the second film and the top adhesive second part adhered thereto is bent along a side of the supporting member.

14. The display device of claim 13 , wherein a side end of the second film of the back film is aligned with a side end of the display part of the flexible first substrate.

15. The display device of claim 12 , wherein a side end of the first film of the back film is aligned with a side end of the display part of the flexible first substrate.

16. The display device of claim 13 , further comprising:
a flexible circuit board provided below the pad part and the support member, and extending substantially parallel to the support member.

17. The display device of claim 16 , further comprising:
a driving integrated circuit (IC) provided below the flexible circuit board and the display part of the flexible first substrate.

18. The display device of claim 16 , further comprising:
another adhesive part provided between a bottom surface of the supporting member and a top surface of the flexible circuit board, and provided below the display part of the flexible first substrate.

19. The display device of claim 12 , further comprising:
a second substrate facing the display part of the flexible first substrate.

20. The display device of claim 13 , wherein the side of the supporting member along which the bending part is bent, contacts an inner surface of the bending part.

Assignees

• Lg Display Co Ltd

Inventors

• Park Ji Sun
• Lee Dal Jae
• Jeong Ji Yong

Classifications

• H10K59/8791

  Arrangements for improving contrast, e.g. preventing reflection of ambient light · CPC title

• H10K59/873

  Encapsulations · CPC title

• H10K59/8722

  Peripheral sealing arrangements, e.g. adhesives, sealants · CPC title

• H10K59/871

  Self-supporting sealing arrangements · CPC title

• H10K59/805

  Electrodes · CPC title