Optical bonding apparatus, touch sensitive display using the same and method of making the same

Patent metadata

Field	Value
Publication number	US-9279068-B2
Application number	US-201114115872-A
Country	US
Kind code	B2
Filing date	May 6, 2011
Priority date	May 6, 2011
Publication date	Mar 8, 2016
Grant date	Mar 8, 2016

Abstract

The present invention discloses an optical bonding apparatus, including: a first bonding layer; a second bonding layer; and a dismountable bonding layer superposed between the first bonding layer and the second bonding layer. The present invention also discloses a touch sensitive display using the optical bonding apparatus and a method of making the optical bonding apparatus.

First claim

The invention claimed is:

1. A method of disassembling a display comprising:
providing a display comprising a touch panel module, a display panel module, and a dismountable bonding layer;
wherein the touch panel module comprises a touch panel and a first bonding layer attached to the touch panel, the display panel module comprises a display panel and a second bonding layer attached to the display panel, and wherein the dismountable bonding layer is capable of transforming from a first state to a second state after the dismountable bonding layer is processed, wherein two sides of the dismountable bonding layer are respectively bonded to the first bonding layer and the second bonding layer in the first state;
wherein the dismountable bonding layer is a heat-to-disassemble bonding layer and heating the dismountable bonding layer for a period of time until the dismountable bonding layer transforms from the first state to the second state, and wherein after the step of heating the heat-to-disassemble bonding layer, the first bonding layer remains bonded to the touch panel and the second bonding layer remains bonded to the display panel;
and
removing the dismountable bonding layer to separate the individual touch panel module and the display panel module;
wherein the first bonding layer is a thermal flow bonding layer and the first bonding layer transforms to a higher viscosity state during the step of heating and returned to solid state by heat solidifying.

2. The method according claim 1 , wherein the second bonding layer is a thermal flow bonding layer, and the second bonding layer remains bonded to the display panel after the step of heating the dismountable bonding layer.

3. The method according claim 1 , wherein the second bonding layer is a pressure sensitive bonding layer and the second bonding layer remains bonded to the display panel after the step of heating the dismountable bonding layer.

4. A method of disassembling a display comprising:
providing a display comprising a touch panel module, a display panel module, and a dismountable bonding layer; wherein the touch panel module comprises a touch panel and a first bonding layer attached to the touch panel, the display panel module comprises a display panel and a second bonding layer attached to the display panel, and wherein the dismountable bonding layer is capable of transforming from a first state to a second state after the dismountable bonding layer is processed, wherein two sides of the dismountable bonding layer are respectively bonded to the first bonding layer and the second bonding layer in the first state;
wherein the dismountable bonding layer is a an ultra violet exposing-to-disassemble bonding layer and exposing the dismountable bonding layer to ultra violet lights for a period of time until the dismountable bonding layer transforms from the first state to the second state, and
wherein after the step of exposing the dismountable bonding layer, the first bonding layer remains bonded to the touch panel and the second bonding layer remains bonded to the display panel;
and
removing the dismountable bonding layer to separate the individual touch panel module and the display panel module;
wherein the first bonding layer is a thermal flow bonding layer and the first bonding layer transforms to a higher viscosity state during the step of exposing the dismountable bonding layer to ultra violet lights and returned to solid state by ultraviolet solidifying.

5. The method according claim 4 , wherein the second bonding layer is a thermal flow bonding layer, and the second bonding layer remains bonded to the display panel after the step of exposing the dismountable bonding layer.

6. The method according claim 4 , wherein the second bonding layer is a pressure sensitive bonding layer and the second bonding layer remains bonded to the display panel after the step of exposing the dismountable bonding layer.

Assignees

• Lee Yuh-Wen
• Yuan Qiong
• Xu Xianbin
• Lin Fengming
• Tpk Touch Solutions Xiamen Inc

Inventors

• Lee Yuh-Wen
• Yuan Qiong
• Xu Xianbin
• Lin Fengming

Classifications

• G02F1/13338

  Input devices, e.g. touch panels · CPC title

• Y10T156/10

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

• G06F3/041 Primary

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

• G02F2202/28

  Adhesive materials or arrangements · CPC title

• G06F2203/04103

  Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices · CPC title