Display device and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-9415576-B2
Application number	US-201414287929-A
Country	US
Kind code	B2
Filing date	May 27, 2014
Priority date	Jan 22, 2014
Publication date	Aug 16, 2016
Grant date	Aug 16, 2016

Abstract

A display device and a method of manufacturing the same, the display device including a display module including a display area and a circuit area; a window that faces the display module; a bonding member between the display area of the display module and the window, the bonding member bonding the display module and the window together; and a dam member along a boundary between the display area and the circuit area, the dam member separating the bonding member and the circuit area, wherein the dam member includes a foam element that absorbs at least a portion of the bonding member.

First claim

What is claimed is:

1. A display device, comprising:
a display module including a display area and a circuit area;
a window that faces the display module;
a bonding member between the display area of the display module and the window, the bonding member contacting the display module and the window, and bonding the display module and the window together; and
a dam member along a boundary between the display area and the circuit area, the dam member separating the bonding member and the circuit area,
wherein the bonding member contacts the dam member, and the dam member includes a foam element that absorbs at least a portion of the bonding member.

2. The display device as claimed in claim 1 , further comprising an integrated circuit (IC) chip in the circuit area.

3. The display device as claimed in claim 2 , wherein the dam member covers at least a portion of the IC chip.

4. The display device as claimed in claim 2 , wherein:
the display module includes a first substrate and a second substrate, the second substrate overlying a portion of the first substrate in the display area, and
the IC chip is on a portion of the first substrate in the circuit area.

5. The display device as claimed in claim 1 , further comprising a connecting member, the connecting member having a side that is connected to the display module.

6. The display device as claimed in claim 5 , wherein the dam member covers the side of the connecting member.

7. The display device as claimed in claim 5 , wherein:
the display module includes a display panel and a touch panel, the touch panel being on the display panel, and
the side of the connecting member is connected to the touch panel.

8. The display device as claimed in claim 5 , wherein the connecting member includes a flexible printed circuit board.

9. The display device as claimed in claim 1 , wherein the dam member is attached to a surface of the window that faces the display module.

10. The display device as claimed in claim 1 , wherein:
the dam member is between the display module and the window, and
the dam member extends along side surfaces of the bonding member, the dam member contacting the side surfaces of the bonding member.

11. The display device as claimed in claim 1 , wherein the bonding member includes a photocurable resin.

12. The display device as claimed in claim 1 , wherein the foam element includes at least one of a polypropylene-based resin, a polyacrylic-based resin, a polyurethane-based resin, or a polyolefin-based resin.

13. A method of manufacturing a display device, the method comprising:
providing a display module that includes a display area and a circuit area;
forming a dam member on a portion of a surface of a window such that the dam member extends along a boundary between the display area and the circuit area; and
bonding the window and the display module together with a bonding member that contacts the dam member, the display module, and the window, the bonding including curing the bonding member,
wherein the dam member includes a foam element that absorbs at least a portion of the bonding member.

14. The method as claimed in claim 13 , wherein forming the dam member includes attaching the foam element to a tape and attaching the tape having the foam element thereon onto the surface of the window at the boundary between the display area and the circuit area.

15. The method as claimed in claim 14 , wherein forming the dam member includes attaching the tape to edges of the surface of the window.

16. The method as claimed in claim 13 , wherein bonding the window and the display module includes:
coating a space on the surface of the window with the bonding member, the space being formed by the surface of the window and the dam member;
placing the display module such that the display module faces the surface of the window and the bonding member; and
pressing the display module toward the window.

17. The method as claimed in claim 13 , wherein bonding the window and the display module includes:
coating the bonding member on the display area of the display module;
placing the window such that the surface of the window faces the display module and the bonding member; and
pressing the window toward the display module.

18. The method as claimed in claim 13 , wherein the bonding member includes a photocurable resin.

19. The method as claimed in claim 18 , wherein curing the bonding member includes irradiating ultraviolet light to the bonding member.

20. The method as claimed in claim 13 , wherein the foam element includes at least one of a polypropylene-based resin, a polyacrylic-based resin, a polyolefin-based resin, or a polyolefin-based resin.

Assignees

• Samsung Display Co Ltd

Inventors

• Seo Gwang Jea
• Choi Dong Suk

Classifications

• G06F3/041

  Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means · CPC title

• B32B2037/1253

  curable adhesive · CPC title

• B32B38/0008 Primary

  Electrical discharge treatment, e.g. corona, plasma treatment; wave energy or particle radiation (heat treatment B32B38/0036) · CPC title

• B32B2310/08

  by wave energy or particle radiation · CPC title

• Y10T156/10

  Methods of surface bonding and/or assembly therefor · CPC title