Adhesive structure with hybrid adhesive layer

Patent metadata

Field	Value
Publication number	US-9333725-B2
Application number	US-201313928268-A
Country	US
Kind code	B2
Filing date	Jun 26, 2013
Priority date	Jun 26, 2013
Publication date	May 10, 2016
Grant date	May 10, 2016

Abstract

An adhesive structure is disclosed. The adhesive structure includes a first layer, a second layer, and a hybrid adhesive layer for adhering the first layer to the second layer. The hybrid adhesive layer includes two or more adhesive units made of different adhesive materials, and the two or more adhesive units are arranged in a planar pattern.

First claim

What is claimed is:

1. A display device, comprising:
a display panel having a first surface;
a transparent control panel having a second surface; and
a hybrid adhesive layer disposed on the first surface of the display panel for adhering the display panel to the transparent control panel,
wherein the hybrid adhesive layer includes a first adhesive unit made of a first adhesive material, and second adhesive units made of a second adhesive material,
wherein the first adhesive unit and the second adhesive units are arranged in a first direction,
wherein the first adhesive material and the second adhesive material have respective viscoelasticities, the viscoelasticity of the first adhesive material being lower than that of the second adhesive material, and a difference between the viscoelasticity of the second adhesive material and the viscoelasticity of the first adhesive material is equal to or more than 10 centipoise (cps), and
wherein the display device is folded in the first direction along a folding line formed by the first adhesive unit.

2. The display device of claim 1 , wherein at least one of the first adhesive unit and the second adhesive units has a shape selected from the group consisting of a circular shape, a square shape, a triangular shape, and a rectangular shape.

3. The display device of claim 1 , wherein the first adhesive material and the second adhesive material have different adhesion strengths.

4. The display device of claim 1 , wherein the first adhesive material and the second adhesive material have different Young's moduluses.

5. The display device of claim 1 , wherein the first adhesive material and the second adhesive material have different hardnesses.

6. The display device of claim 1 , wherein the first adhesive material and the second adhesive material have different optical properties.

7. The display device of claim 1 , wherein the first adhesive material and the second adhesive material have different electrical properties.

8. The display device of claim 1 , wherein the first adhesive unit and the second adhesive units have different areas.

9. The display device of claim 1 , wherein the first adhesive unit and the second adhesive units have different thicknesses.

10. The adhesive structure display device of claim 1 , wherein at least one of the display panel and the transparent control panel includes a plurality of sub-layers.

11. The display device of claim 10 , wherein the plurality of sub-layers are formed of the same material.

12. The display device of claim 10 , wherein the plurality of sub-layers are formed of different materials.

13. The display device of claim 1 , wherein the hybrid adhesive layer includes at least one filling unit.

14. A display device, comprising:
a display panel having a first surface;
a hybrid adhesive layer disposed on the first surface of the display panel and including a first adhesive unit made of a first adhesive material, and second adhesive units made of a second adhesive material, the first adhesive unit and the second adhesive units being arranged in a first direction; and
a first sacrificial layer formed on one side of the hybrid adhesive layer,
wherein the first adhesive material and the second adhesive material have respective viscoelasticities, the viscoelasticity of the first adhesive material being lower than that of the second adhesive material and a difference between the viscoelasticity of the second adhesive material and the viscoelasticity of the first adhesive material is equal to or more than 10 centipoise (cps), and
wherein the display device is folded in the first direction along a folding line formed by the first adhesive unit.

15. A display device, comprising:
a plurality of layers stacked together and comprising a display panel and a transparent control panel; and
a plurality of adhesive layers for adhering the plurality of layers to each other,
wherein at least one of the plurality of adhesive layers is a hybrid adhesive layer comprising a first adhesive unit made of a first adhesive material, and second adhesive units made of a second adhesive material, the first adhesive unit and the second adhesive units being arranged in a first direction,
wherein the first adhesive material and the second adhesive material have respective viscoelasticities, and the viscoelasticity of the first adhesive material is lower than that of the second adhesive material and a difference between the viscoelasticity of the second adhesive material and the viscoelasticity of the first adhesive material is equal to or more than 10 centipoise (cps), and
wherein the display device is folded in the first direction along a folding line formed by the first adhesive unit.

Assignees

• Ind Tech Res Inst

Inventors

• Chuang Meng-Ying
• Chen Kuo-Feng
• Chang Chih-Chia
• Kung Chen-Pang

Classifications

• Y10T428/1476

  Release layer · CPC title

• B32B2307/20

  having particular electrical or magnetic properties, e.g. piezoelectric · CPC title

• B32B7/02

  Physical, chemical or physicochemical properties · CPC title

• B32B2307/40

  having particular optical properties · CPC title

• B32B7/14 Primary

  applied in spaced arrangements, e.g. in stripes · CPC title