Method of manufacturing display device

Patent metadata

Field	Value
Publication number	US-10342120-B2
Application number	US-201715689627-A
Country	US
Kind code	B2
Filing date	Aug 29, 2017
Priority date	Jul 30, 2013
Publication date	Jul 2, 2019
Grant date	Jul 2, 2019

Abstract

Discussed is a method of manufacturing a display device. The method of manufacturing the display device according to one example includes providing a first substrate including a display part, a bending part at one side of the display part, and a pad part at an end of the bending part. The method further includes providing a second substrate facing-coupled to the display part, providing a back film, and adhering the back film to a portion corresponding to the display part and the pad part on a bottom of the first substrate.

First claim

What is claimed is:

1. A method of manufacturing a display device, the method comprising:
providing a first substrate including a display part, a bending part at one side of the display part, and a pad part at an end of the bending part;
providing a second substrate facing the display part;
providing a back film including a first film part and a second film part,
wherein the first and second film parts are separated from each other by a separation space which corresponds to the bending part of the first substrate, and
wherein a top adhesive material is disposed on tops of the first film part and the second film part, and a bottom adhesive material is disposed on bottoms of the first film part and the second film part; and
adhering the back film to a portion corresponding to the display part and the pad part on a bottom of the first substrate, using the top adhesive material.

2. The method of claim 1 , wherein a plurality of pixels are formed in the display panel.

3. The method of claim 1 , wherein the providing the back film comprises:
applying the top adhesive material to a top of a base back film;
adhering a top release layer to a surface of the top adhesive material;
adhering the bottom adhesive material to the base back film;
adhering a bottom release layer to a surface of the bottom adhesive layer; and
cutting out a portion corresponding to the bending part except the bottom release layer to manufacture the back film.

4. The method of claim 3 , wherein the adhering the back film to the portion corresponding to the display part and the pad part of the first substrate comprises:
separating the top release layer; and
adhering a top of the back film to the bottom of the first substrate by using the top adhesive material.

5. The method of claim 1 , further comprising:
adhering a top of a supporting member to a bottom of a portion of the back film, the portion of the back film corresponding to the display part.

6. The method of claim 5 , wherein the providing the back film comprises:
applying the top adhesive material to a top of a base back film;
adhering a top release layer to a surface of the top adhesive material;
adhering the bottom adhesive material to the base back film;
adhering a bottom release layer to a surface of the bottom adhesive layer; and
cutting out a portion corresponding to the bending part except the bottom release layer to provide the back film.

7. The method of claim 6 , wherein the adhering the top of the supporting member to the bottom of the portion of the back film comprises:
separating the bottom release layer; and
adhering the bottom of the portion of the back film to the top of the supporting member, the portion of the back film corresponding to the display part.

8. The method of claim 7 , wherein the bottom of the portion of the back film is adhered to the top of the supporting member by an adhesive which is adhered or disposed on the top of the supporting member.

9. The method of claim 7 , wherein the bottom of the portion of the back film is adhered to the top of the supporting member by the bottom adhesive material.

10. The method of claim 5 , further comprising:
bending the bending part of the first substrate along a side of the supporting member; and
adhering a portion of the back film, corresponding to the pad part, to a bottom of the supporting member.

11. The method of claim 10 , wherein the providing the back film comprises:
applying the top adhesive material to a top of a base back film;
adhering a top release layer to a surface of the top adhesive material;
adhering the bottom adhesive material to the base back film;
adhering a bottom release layer to a surface of the bottom adhesive layer; and
cutting out a portion corresponding to the bending part except the bottom release layer to manufacture the back film.

12. The method of claim 11 , wherein the portion of the back film, which corresponds to the pad part, is adhered to the bottom of the supporting member by an adhesive which is adhered or disposed on the bottom of the supporting member.

13. The method of claim 11 , wherein the portion of the back film, which corresponds to the pad part, is adhered to the bottom of the supporting member by the bottom adhesive material.

14. A method of providing a display device, the method comprising:
providing 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;
providing a second substrate facing the display part;
providing a back film;
adhering the back film to a portion corresponding to the display part and the pad part on a bottom of the first substrate;
providing a supporting member disposed below a portion of the back film corresponding to the display part, wherein the supporting member is not bent; and
bending the bending part of the first substrate along a side of the supporting member.

15. The method of claim 14 , wherein the providing the back film comprises:
adhering a bottom adhesive layer to a base back film;
adhering a bottom release layer to a surface of the bottom adhesive layer; and
cutting out a portion of the bottom adhesive layer corresponding to the bending part.

16. The method of claim 15 , wherein in the providing the supporting member, the bottom release layer is removed.

17. A method of manufacturing a display device, the method comprising:
providing a first substrate including a display part, a bending part at one side of the display part, and a pad part at an end of the bending part;
providing a second substrate facing-coupled to the display part;
providing a back film, wherein the providing the back film comprises:
applying a top adhesive material to a top of a base back film,
adhering a top release paper to a surface of the top adhesive material,
adhering a bottom adhesive material to the base back film,
adhering a bottom release paper to a surface of the bottom adhesive paper, and
cutting a portion corresponding to the bending part except the bottom release paper to manufacture the back film; and

adhering the back film to a portion corresponding to the display part and the pad part on a bottom of the first substrate.

Assignees

• Lg Display Co Ltd

Inventors

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

Classifications

• H05K1/14

  Structural association of two or more printed circuits (providing electric connection to or between printed circuits H05K1/11, H01R12/00) · CPC title

• G02F1/133305 Primary

  Flexible substrates, e.g. plastics, organic film · CPC title

• H05K1/147

  at least one of the printed circuits being bent or folded, e.g. by using a flexible printed circuit (H05K1/148 takes precedence) · CPC title

• H05K1/028 Primary

  Bending or folding regions of flexible printed circuits (H05K1/0283 takes precedence) · CPC title

• Y10T156/1028

  by bending, drawing or stretch forming sheet to assume shape of configured lamina while in contact therewith · CPC title