PANEL PACKAGE STRUCTURE

• US 20150309628A1
• Filed: 10/21/2014
• Published: 10/29/2015
• Est. Priority Date: 04/25/2014
• Status: Abandoned Application

• Current Assignee: Industrial Technology Research Institute
• Original Assignee: Industrial Technology Research Institute
• Inventors: Chen, Kuo-Feng, Chang, Chih-Chia, Lee, Shu-Hsing, Chuang, Meng-Ying
• Application Number:
  US14/519,149
• Publication Number:
  US 20150309628A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G02F 1/133305 Flexible substrates, e.g. plastics, organic film
• CPC Class Codes: G02F 1/13332 Front frames
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G06F 1/1626 with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
• CPC Class Codes: G06F 1/1652 the display being flexible, e.g. mimicking a sheet of paper, or rollable
• CPC Class Codes: G06F 2203/04102 Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper
• CPC Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means

Abstract

A package structure includes a first panel having a first surface and a second surface opposite to the first surface, a second panel having a third surface and a fourth surface opposite to the third surface, a first adhesive layer disposed between the first surface of the first panel and the third surface of the second panel, and a frame disposed on the side of the first panel and the first adhesive layer and disposed on the second surface of the first panel and the third surface of the second panel. The difference of the adhesive strength between the frame and the first adhesive layer is equal to or larger than 0.5N/25 mm. The width of the first panel is larger than the width of the frame, and the ratio of the width of the first panel to the width of the frame is between 15 and 83.

Claims

1. A panel package structure, comprising:

a first panel having a first surface and a second surface opposite to the first surface;

a second panel having a third surface and a fourth surface opposite to the third surface;

a first adhesive layer disposed between the first surface of the first panel and the third surface of the second panel; and

a frame disposed by sides of the first panel and the first adhesive layer, on the second surface of the first panel and on the third surface of the second panel, wherein a difference between an adhesive strength of the frame and an adhesive strength of the first adhesive layer is equal to or larger than 0.5N/25 mm, a width of the first panel is larger than a width of the frame, and a ratio of the width of the first panel to the width of the frame ranges between 15 and 83.

2. The structure according to claim 1, wherein the frame comprises:

a lateral frame disposed by sides of the first panel and the first adhesive layer and on the third surface of the second panel; and

a top frame disposed on the second surface of the first panel and adjacent to the lateral frame.

3. The structure according to claim 2, wherein a thickness of the top frame that surrounds at least two sides of the first and second panels ranges between 10 μ

m and 5 mm.

4. The structure according to claim 2, wherein a thickness of the lateral frame is a sum of a thickness of the top frame, a thickness of the first panel and a thickness of the first adhesive layer.

5. The structure according to claim 2, wherein a ratio of a width of the lateral frame to a width of the top frame ranges between 1 and 4.

6. The structure according to claim 2, wherein a Young'"'"'s modulus of the lateral frame and the top frame is smaller than 10 GPa.

7. The structure according to claim 6, wherein materials of the lateral frame and the top frame include rubber adhesive materials, acrylic resin adhesive materials or silicone resin adhesive materials.

8. The structure according to claim 7, wherein the rubber adhesive materials include natural rubber and synthetic rubber, and the acrylic resin adhesive materials include acrylic resins and modified acrylic resins.

9. The structure according to claim 1, wherein the first panel is a touch panel, a color filter, a planar layer, a gas barrier layer, a water barrier layer, a stress buffering layer, a scratch-resistant layer, an UV shielding layer, an anti-glare layer, an anti-fingerprint layer or an anti-reflection layer and the second panel is a display panel, or the first panel is a display panel and the second panel is a touch panel, a color filter, a planar layer, a gas barrier layer, a water barrier layer, a stress buffering layer, a scratch-resistant layer, an UV shielding layer, an anti-glare layer, an anti-fingerprint layer or an anti-reflection layer.

10. The structure according to claim 1, wherein the frame is disposed in a peripheral region of the first and second panels and surrounds at least two sides of the first and second panels.

11. The structure according to claim 10, wherein the frame disposed in the peripheral region of the first and second panels is a continuous structure.

12. The structure according to claim 10, wherein the frame disposed in the peripheral region of the first and second panels includes discontinuous structures.

13. The structure according to claim 1, wherein the frame is disposed in a peripheral region of the first and second panels and only disposed in a predetermined folding region of the first and second panels.

14. The structure according to claim 1, wherein the frame located at different sides of the first panel includes different materials.

15. The structure according to claim 1, wherein the width of the first panel is equivalent to a width of the first adhesive layer, and the frame is in direct contact with the sides of the first panel and the first adhesive layer.

16. The structure according to claim 1, wherein the width of the first panel is larger than a width of the first adhesive layer, and the frame is not in contact with the side of the first adhesive layer.

17. The structure according to claim 1, wherein the width of the first panel is larger than a width of the first adhesive layer, and the frame is in direct contact with the side of the first adhesive layer.

18. The structure according to claim 1, wherein a width of the first adhesive layer is larger than the width of the first panel, and the frame is in direct contact with the sides of the first panel and the first adhesive layer.

19. The structure according to claim 1, wherein the width of the second panel is equivalent to a width of the first adhesive layer, and the frame is in direct contact with the side of the first panel without contacting with the side of the first adhesive layer.