CN103273705A

CN103273705A - Adhesive structure

Info

Publication number: CN103273705A
Application number: CN2013101376224A
Authority: CN
Inventors: 张菁; 韦英
Original assignee: Interface Optoelectronics Shenzhen Co Ltd; General Interface Solution Ltd
Current assignee: Interface Optoelectronics Shenzhen Co Ltd; Interface Technology Chengdu Co Ltd
Priority date: 2013-04-19
Filing date: 2013-04-19
Publication date: 2013-09-04
Anticipated expiration: 2033-04-19
Also published as: TWI510364B; CN103273705B; TW201500194A

Abstract

The invention relates to an adhesive structure, comprising a bearing film, a buffer layer with an opening, a first adhesive layer and a release film, wherein the bearing film and the first adhesive layer are disposed at two opposite surfaces of the buffer layer; the surface of the bearing film close to the first adhesive layer is coated by a first protective film; the first protective film is disposed at the opening of the buffer layer; and the release film is disposed on the surface of the first adhesive layer far away the surface of the buffer layer. The adhesive structure also comprises a second protective film which is disposed on the surface of the release film close to the first adhesive layer, so as to prevent mutual contact between the release film and the first protective film.

Description

Bonded structure

Technical field

The present invention relates to a kind of bonded structure that is applied in the touch display unit.

Background technology

Existing touch control display apparatus is for example had a mobile phone, panel computer of touch controllable function etc., is to make the touch module that receives touch control operation and the effective applying that shows module, all needs to adopt bonded structure to connect, to reach effects such as applying, sealing.So; in actual applications; with touch module and after showing the module assembling; find that through regular meeting the stickum in this bonded structure can adhere to or be transferred on the surface of touch module or demonstration module; for example the mould release in the bonded structure can be transferred on the sensing substrate of touch module, causes the flaw of touch module on outward appearance and quality.

Summary of the invention

Given this, provide a kind of bonded structure that can prevent from device to be pasted is produced pollution or transfer printing defective.

A kind of bonded structure; comprise carrier film; cushion with opening; first adhered layer and mould release membrance; this carrier film and this first adhered layer are arranged at two facing surfaces of this cushion; the surface of contiguous this first sticking layer of this carrier film is with one first diaphragm; and this first diaphragm is arranged at the opening part of this cushion; this mould release membrance is arranged at this first adhered layer away from the surface of this cushion; this bonded structure also comprises one second diaphragm; this second diaphragm is arranged at the surface of contiguous this first adhered layer of this mould release membrance, intercepts being in contact with one another of this mould release membrance and this first diaphragm.

Compared to prior art; in the bonded structure of the present invention; also be provided with second diaphragm between this mould release membrance and first adhered layer; thus; in application process; this second diaphragm can effectively prevent from the material adhesion on the mould release membrance or be transferred to waiting one of the module of fitting, on touch module, avoid touching module bad order, bad.

Description of drawings

Fig. 1 is the decomposing schematic representation of bonded structure of the present invention.

Fig. 2 is the planar structure schematic diagram after the bonded structure combination of the present invention.

Fig. 3 be among Fig. 2 bonded structure along the cross-sectional view of III-IIII line.

Fig. 4 is the cross-sectional view that the bonding knot of the present invention is applied to touch control display apparatus.

The main element symbol description

The following specific embodiment will further specify the present invention in conjunction with above-mentioned accompanying drawing.

The specific embodiment

See also Fig. 1 to 3, wherein, Fig. 1 is the decomposing schematic representation of bonded structure of the present invention, and Fig. 2 is the combination schematic diagram of bonded structure of the present invention, Fig. 3 be among Fig. 2 bonded structure along the cross-sectional view of III-III line.In the present embodiment, bonded structure 10 preferably is applied to a touch control display apparatus, and for example touch-control mobile phone or panel computer are used for touch module and other modules with touch control display apparatus, as showing that module is fitted and connected.Be appreciated that this bonded structure 10 also can use in other modules to be fitted, be not limited with touch control display apparatus.

This bonded structure 10 comprises carrier film 100, first diaphragm 200, cushion 300, first adhered layer 400, second diaphragm 500, second adhered layer 600 and mould release membrance 700.Wherein, carrier film 100, cushion 300, first adhered layer 400 and mould release membrance 700 are cascading, and first diaphragm 200 is arranged between carrier film 100 and the cushion 300, and second diaphragm 500 is arranged between first adhered layer 400 and the mould release membrance 700.Second adhered layer 600 is arranged between second diaphragm 500 and the mould release membrance 700.

Cushion 300 has certain elasticity, and in the present embodiment, cushion 300 is acrylic compounds foam or foam.

Need to prove, for not influencing the operate as normal of touch module, show in the module at touch-control, the cushion 300 that possesses buffering and viscosity in the bonded structure 10 is arranged at the marginal portion that touch-control shows module, and the part setting that not corresponding touch control display apparatus receives touch control operation and shows image.So cushion 300 and first adhered layer 400 are the shaped as frame with a hollow open in the present embodiment.

Carrier film 100 is pasted on this cushion 300, and covers the zone of this cushion 300 and hollow opening thereof, is used for preventing cushion 300 distortion or contaminated.Carrier film 100 can be selected the PET material for use, and has the transparent membrane of certain viscosity.

The position of first diaphragm, 200 corresponding cushion 300 hollow open arranges, and the area of this first diaphragm 200 is slightly less than the area of cushion 300 hollow open.After these bonded structure 10 combinations, as shown in Figure 3, this first diaphragm 200 embeds in these cushion 300 hollow opening.And this first diaphragm 200 is on the surface that is attached at carrier film 100 contiguous these cushions 300 under the viscous effect of carrier film 100.

Preferably, the distance between the inward flange of the outward flange of first diaphragm 200 and cushion 300 is not less than 1 millimeter.

First diaphragm 200 can be PET material transparent membrane.This first diaphragm 200 also can be according to the shape difference of cushion 300 respective change.

First adhered layer 400 is arranged at the lower surface of cushion 300, is used to a module to be fitted, and provides and other modules as touch module, as the applying power that shows that module is fitted required.

Mould release membrance 700 is arranged on first surface of adhered layer 400 away from cushion 300, and the whole zone that covers this first adhered layer 400 and hollow open thereof, this mould release membrance 700 can prevent cushion 300 distortion, and prevents that dust etc. from adhering to first adhered layer 400.In the present embodiment, mould release membrance 700 applies mould release for the substrate in the PET material or silicone oil forms.

Mould release membrance 700 comprises main part 710 and extension 720, and this main part 710 covers cushion 300 and hollow open zone thereof.The part that extension 720 extends for autonomous body 710 marginal portions is so that this mould release membrance 700 of user's clamping.

Second diaphragm 500 is arranged at the surface of mould release membrance 700 contiguous first adhered layers 400; and the position of corresponding first adhered layer, 400 hollow open; be used for intercepting first diaphragm 200 and mould release membrance 700; prevent that mould release membrance 700 from directly contacting with first diaphragm 200, the area of this second diaphragm 500 is less than the area of first adhered layer, 400 hollow open.

Preferably, the distance of the inward flange of the outward flange of second diaphragm 500 and first adhered layer, 400 hollow open is not more than 1 millimeter.

Second adhered layer 600 is arranged between second diaphragm 500 and the mould release membrance 700, is used for this second diaphragm 500 is pasted with mould release membrance 700.

Preferably, the silica gel of second adhered layer 600 for having viscosity, and the cross-sectional area of second adhered layer 600 is 3mm*6mm, and be arranged at the position of corresponding main part 710 contiguous extensions 720.Invent in other embodiments in real name, second adhered layer 600 is not restricted to 1.

Preferably, adhesion strength between carrier film 100 and this cushion 300 is greater than the adhesion strength between this mould release membrance 700 and first adhered layer 400, so that with mould release membrance 700 from this first adhered layer 400 tear off and with module to be fitted, after for example touch module is fitted, when transporting, the remainder integral body of touch module and this bonded structure 10 can prevent effectively that carrier film 100 breaks away from and touch module is contaminated or damage on cushion 300.Wherein, carrier film 100 can be the film of same nature and material with mould release membrance 700.

Variable ground, when mould release membrance 700 had certain viscosity, bonded structure 10 can save second adhered layer 600.

In addition; second diaphragm 500 can also extend and cover whole first adhered layer 400; at this moment; adhesion strength between second diaphragm 500 and the mould release membrance 700 is greater than the adhesion strength between second diaphragm 500 and first adhered layer 400, and the surface of these second diaphragm, 500 contiguous these first adhered layers 400 is smooth surface.

See also Fig. 4, the cross-sectional view when being applied to touch control display apparatus 20.

Touch control display apparatus 20 comprises touch module 210 and shows module 220, touch module 210 is used for receiving user's touch operation, and definite position that receives this touch operation, touch module 210 includes touch-sensing substrate (not shown) and other supplementary structures.Show that module 220 is used for showing image, includes display floater and module backlight etc.Bonded structure 10 is arranged at touch module 210 and shows between the module 220, is used for pasting this two module 210,220.

When pasting this touch module 210 and showing module 220, at first, second diaphragm 500 in this bonded structure 10, second adhered layer 600 and mould release membrance 700 integral body are torn off from first adhered layer 400; First adhered layer 400, cushion 300, first diaphragm 200 and carrier film 100 are fixed on the tool then; Then, carry out after touch module 210 and 400 contrapositions of first adhered layer bonding; At last, carrier film 100 and first diaphragm 200 tear off from cushion 300, combination after demonstration module 220 and cushion 300 contrapositions.

Compared to prior art; also be provided with second diaphragm 500 between mould release membrance 700 and first adhered layer 400; thus; in application process; can prevent effectively that material permeance first diaphragm 200 on the mould release membrance 700 from adhering to or being transferred on the touch module 210; that is to say that the silicone oil that prevents on the mould release membrance 700 is transferred to touch-control sensing substrate 211 by first diaphragm 200, causes touch module 210 bad orders, bad.

Variable ground can also further be correspondingly provided with adhered layer between first diaphragm 200 and the cushion 300, so that more preferably fit with showing module 220.

Claims

1. bonded structure; comprise carrier film; cushion with opening; first adhered layer and mould release membrance; this carrier film and this first adhered layer are arranged at two facing surfaces of this cushion; the surface of contiguous this first sticking layer of this carrier film is with one first diaphragm; and this first diaphragm is arranged at the opening part of this cushion; this mould release membrance is arranged at this first adhered layer away from the surface of this cushion; it is characterized in that; this bonded structure also comprises one second diaphragm; this second diaphragm is arranged at the surface of contiguous this first adhered layer of this mould release membrance, intercepts being in contact with one another of this mould release membrance and this first diaphragm.

2. bonded structure as claimed in claim 1 is characterized in that, this second protective layer is to opening setting that should cushion, and the area of this second diaphragm is less than the area of this opening.

3. bonded structure as claimed in claim 2 is characterized in that, the distance of the outward flange of this second diaphragm and the inward flange of this opening is not more than 1 millimeter.

4. bonded structure as claimed in claim 1 is characterized in that, the adhesion strength between this second protective layer and this mould release membrance is greater than the adhesion strength of this second protective layer and this first sticking layer.

5. bonded structure as claimed in claim 4 is characterized in that, the surface of contiguous this first sticking layer of this second protective layer is smooth surface.

6. bonded structure as claimed in claim 1; it is characterized in that; this mould release membrance and the contacted at least part of surface of this second diaphragm also are provided with second adhered layer; this second adhered layer is used for bonding this mould release membrance and this second diaphragm, and this mould release membrance and this second diaphragm can be torn off on this first adhered layer simultaneously.

7. bonded structure as claimed in claim 6, it is characterized in that, this mould release membrance comprises main part and extension, this main part covers whole second adhered layer and this opening, this extension forms from the extension of the edge of this main part, and this second adhered layer is arranged at the position of contiguous this extension of this main part.

8. bonded structure as claimed in claim 1 is characterized in that, the distance of the outward flange of this first diaphragm and the inward flange of this opening is not more than 1 millimeter.

9. as any described bonded structure of claim 1 to 8, it is characterized in that the adhesion strength between this carrier film and this cushion is greater than the adhesion strength between this mould release membrance and this first adhered layer.

10. bonded structure as claimed in claim 1 is characterized in that, this cushion is foam.