CN209182796U - Touch screen and its touch module - Google Patents
Touch screen and its touch module Download PDFInfo
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- CN209182796U CN209182796U CN201822005966.0U CN201822005966U CN209182796U CN 209182796 U CN209182796 U CN 209182796U CN 201822005966 U CN201822005966 U CN 201822005966U CN 209182796 U CN209182796 U CN 209182796U
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Abstract
The utility model relates to a kind of touch screen and its touch modules.Touching mould group includes substrate layer, transparency conducting layer, metal electrode pattern, insulating layer and adhesive layer.The surface of metal lead wire pattern is sequentially laminated with insulating layer and adhesive layer.Insulating layer can play the role of being dielectrically separated to metal lead wire pattern, may also function as isolation steam.In addition, adhesive layer can also further prevent moisture metal lead wire pattern.Moreover, the anti-steam ability of adhesive layer is better than insulating layer.Through insulating layer in conjunction with adhesive layer, it both can guarantee that touch module normally realizes function, and also effectively metal lead wire pattern can be isolated with hot and humid environment.Therefore, it is impacted that contact conductor electric conductivity due to silver migration occurs or is corroded for metal lead wire pattern can be effectively prevented from, so that the reliability of above-mentioned touch screen and touch module is significantly improved.
Description
Technical field
The utility model relates to touch screen technical field, in particular to a kind of touch screen and its touch module.
Background technique
With the continuous development of touch screen technology, more and more intelligent terminals are all made of touch screen as display and interaction
Device.Currently, the material of the substrate of most of touch screen include PET (polyethylene terephthalate), PI (polyimides),
CPI (clear polyimides) and COP (cyclic olefin polymer).On substrate, after nano silver technology, ITO coating technique, adopt
Touch function can be realized with copper facing design, plating metal design, the design of silver paste cabling etc..
In use, touch screen is possible to that steam can be touched.Moreover, touch screen is in use due to fever
It will lead to temperature raising.However, easily occurring silver in the environment of high temperature and humidity by the contact conductor of the metal formings such as silver paste, copper
Migration is corroded, this, which will will lead to touch screen, can not normally realize its touch function.Therefore, existing some use COP bases
Material, silver nanowire touch screen there is a problem of that reliability is poor.
Utility model content
Based on this, it is necessary to for the problem that existing touch screen reliability is poor, provide a kind of higher touch-control of reliability
Screen and its touch module.
A kind of touch module has visible area and the lead district being circumferentially arranged along the visible area, the touch module
Include:
Substrate layer；
It is formed in the transparency conducting layer of the substrate layer surface, the transparency conducting layer forms transparent in the visible area
Electrode pattern, and transparent lead pattern is formed in the lead district；
Metal lead wire pattern is attached to the surface of the transparent lead pattern and collectively forms with the transparent lead pattern
Contact conductor；
Insulating layer is attached to the surface of the metal lead wire pattern；And
Adhesive layer is attached to the surface of the insulating layer.
The surface of metal lead wire pattern is sequentially laminated with insulating layer and adhesive layer.Insulating layer can play metal lead wire pattern
It is dielectrically separated from effect, may also function as the effect of isolation steam.In addition, adhesive layer can also further prevent moisture metal lead wire
Pattern.Moreover, the anti-steam ability of adhesive layer is better than insulating layer.Through insulating layer in conjunction with adhesive layer, touch-control mould both can guarantee
Group is normal to realize function, and also effectively metal lead wire pattern can be isolated with hot and humid environment.Therefore, electricity can be effectively prevented from
Silver migration occurs for pole lead or electric conductivity is impacted due to be corroded because of metal lead wire pattern so that above-mentioned touch module can
It is significantly improved by property.
The metal lead wire pattern is backwards to the edge of the visible area side relative to described in one of the embodiments,
Transparent lead pattern inside contracts, described to form first step between the transparent lead pattern and the metal lead wire pattern
Insulating layer is filled in the first step.
Therefore, when printing or being coated with insulating materials, insulating materials will be flowed to naturally in first step, thus final
To insulating layer be also filled in first step.In this way, insulating layer can integrally cover metal lead wire pattern, insulation effect can be made more
It is good.
The adhesive layer is towards the edge of the visible area side relative to the insulating layer in one of the embodiments,
It inside contracts, to form second step between the insulating layer and the adhesive layer.
When fitting assembles touch screen, due to the presence of second step, the segment difference filling of same thickness cementing layer can be improved
Ability.Therefore, under the premise of not increasing cementing layer thickness, it is ensured that visible area will not go out close to the position of metal lead wire pattern
Existing bubble.
The adhesive layer is backwards to the edge of the visible area side relative to the insulating layer in one of the embodiments,
It inside contracts, to form third step between the insulating layer and the adhesive layer.
Similarly, the presence of third step also can be avoided the generation of bubble during fitting.
The adhesive layer covers the gold in the projection of the metal lead wire patterned surfaces in one of the embodiments,
Belong to lead pattern backwards to the edge of the visible area side.
That is, adhesive layer inside contracts distance backwards to the edge of visible area side, less than inside contracting for metal lead wire pattern
Distance.Therefore, adhesive layer can integrally cover metal lead wire pattern, so that adhesive layer imitates the isolation of metal lead wire pattern
Fruit is more preferably.
The substrate layer is cyclic olefin polymer layer, and two that the substrate layer is opposite in one of the embodiments,
Surface is attached with hard conating, and the transparency conducting layer is attached to the surface of one of them hard conating.
The surface hardness of COP (cyclic olefin polymer) material is lower, frangible, and hard conating can mention the substrate layer of COP material
For protection, its fracture is prevented.
The protective film layer that can be removed is attached on the surface of another hard conating in one of the embodiments,.
Protective film layer effect be protect hard conating not scratched, set-off or in processing procedure not by acid and alkali corrosion.Therefore, in group
When filling touch screen, protective film layer is removed, thus avoid leading to occur bubble in cementing layer due to there are dirty or impurity particle,
It ensure that the visual effect of touch screen.
The protective film layer is polypropylene layer or layer of polyethylene terephthalate in one of the embodiments,.
In one of the embodiments, further include optical adjustment layer, the optical adjustment layer be held on the hard conating with
Between the transparency conducting layer.
Optical adjustment layer can reduce the refringence between hard conating and transparency conducting layer, play a transition role, thus favorably
In the optical effect for improving touch module.
A kind of touch screen, comprising:
Cover board；
Display module；And
At least one touch module as described in any one of above preferred embodiment, the cover board, described at least one
Touch module and the display module stack gradually and gluing.
Detailed description of the invention
Fig. 1 is the stepped construction schematic diagram of touch screen in the utility model preferred embodiment；
Fig. 2 is the stepped construction schematic diagram of touch module in touch screen shown in Fig. 1；
Fig. 3 is the partial enlargement diagram of touch module shown in Fig. 2.
Specific embodiment
The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model,
It states.The preferred embodiment of the utility model is given in attached drawing.But the utility model can come in many different forms
It realizes, however it is not limited to embodiment described herein.On the contrary, purpose of providing these embodiments is makes to the utility model
The understanding of disclosure is more thorough and comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein includes
Any and all combinations of one or more related listed items.
Referring to Fig. 1, the utility model provides a kind of touch screen 10 and touch module 100.Wherein, touch screen 100 wraps
Include cover board 101, display module 102 and touch module 100.
Cover board 101 can be formed by transparent materials such as glass, resinous polymer or sapphires, play support and protection touch screen
10 effect.Cover board 101, touch module 100 and display module 102 stack gradually and gluing.Touch module 100 is at least one
It is a.Specifically in the present embodiment, touch module 100 is two, one of them can be used as driving electrodes, another can be used as induction
Electrode, so that touch screen 10 be made to realize touch function.
Touch module 100 has visible area (not shown) and the lead district (not shown) being circumferentially arranged along visible area.It can
Vision area is aligned with the display surface of display module 102；Lead district is invisible in touch screen 10, generally by the side of cover board 101
The realization of edge painting black ink is blocked.
Gluing is realized by cementing layer 103 between cover board 101, display module 102 and touch module 100.Cementing layer 103 1
As formed by Optical transparent adhesive.The thickness of cementing layer 103 between cover board 101 and touch module 100 is generally 100 microns extremely
125 microns, the thickness of the cementing layer 103 between two touch modules 100 is generally 25 microns to 50 microns, touch module 100
The thickness of cementing layer 103 between display module 102 is generally 100 microns to 500 microns.
Please refer to figs. 2 and 3 together, the touch module 100 in the utility model preferred embodiment include substrate layer 110,
Transparency conducting layer 120, metal lead wire pattern 130, insulating layer 140 and adhesive layer 150.
Substrate layer 110 is typically chosen the lesser material of phase difference, is conducive to yield.The material of substrate layer 110 can be PET
(polyethylene terephthalate), PI (polyimides), CPI (clear polyimides) and COP (cyclic olefin polymer) etc..Due to
COP material has the characteristic of relatively low price, optical property and good mechanical performance, therefore in order to promote the quality of touch screen 10
And reduce cost.Specifically in the present embodiment, substrate layer 110 is cyclic olefin polymer layer, and two tables that substrate layer 110 is opposite
Face is attached with hard conating 160.
The surface hardness of COP material is lower, frangible, hard conating 160 can substrate layer 110 to COP material protection is provided, prevent
Only it is broken.Wherein, hard conating 160 generally comprises binder resin.The binder resin is including, for example, being based on ultraviolet light, electronics
The hardening resin composition of ray.Hardening resin composition preferably comprises glycidyl acrylate based polymer and propylene
Acid carries out polymer obtained from addition reaction.
Transparency conducting layer 120 is formed in 110 surface of substrate layer.Specifically in the present embodiment, transparency conducting layer 120 is attached to
The surface of one of hard conating 160.Wherein, transparency conducting layer 120 can be ITO (tin indium oxide) layer.Transparency conducting layer 120
Transparent electrode pattern 121 is formed in visible area, and transparent lead pattern 123 is formed in lead district.Transparent electrode pattern 121
Induction electrode or driving electrodes can be formed, transparent lead pattern 123 is then electrically connected with induction electrode or driving electrodes realization.
Metal lead wire pattern 130 is attached to the surface of transparent lead pattern 123 and collectively forms with transparent lead pattern 123
Contact conductor (figure is not marked).Wherein, the material of metal lead wire pattern 130 can be the good conductor of the electricity such as copper, silver, nickel.With conduction
Silver paste is formed for metal lead wire pattern 130, silver paste is first printed in lead district, then toast silver paste to make its sizing, finally will be silver-colored
Pulp layer is radium-shine just to obtain metal lead wire pattern 130 into strips.
In the present embodiment, being attached at another backwards to the surface of the hard conating 160 of transparency conducting layer 120 can remove
Protective film layer 170.
Protective film layer 170 effect be protect hard conating 160 not scratched, set-off or in processing procedure not by acid and alkali corrosion.Cause
This removes protective film layer 170 when assembling touch screen 10, to avoid leading to gluing due to there are dirty or impurity particle
There is bubble in layer 103, ensure that the visual effect of touch screen 10.
Further, in the present embodiment, protective film layer 170 is polypropylene layer or layer of polyethylene terephthalate.
In the present embodiment by taking conductive silver paste forms metal lead wire pattern 130 as an example, the baking of silver paste cabling needs is just plastic,
The temperature of baking is different according to the difference of silver paste type.Generally there are 80 DEG C to 140 DEG C and 90 DEG C of silver pastes below for choosing
It selects, and PET (polyethylene terephthalate) and the substrate layer 110 of COP material progress high-temperature baking will appear serious warpage shape
Condition.Therefore, corresponding protective film layer 170 is PP (polypropylene) material when using high temperature silver paste, and while using low temperature silver paste is corresponding
Protective film layer 170 be PET material.
Insulating layer 140 is attached to the surface of metal lead wire pattern 130.Specifically, after forming metal lead wire pattern 130, it can
By printing, being coated with coatings and make its solidification to form insulating layer 140.The thickness of insulating layer 140 be generally 5 microns with
Under.Insulating layer 140 can play the role of being dielectrically separated to metal lead wire pattern 130, may also function as isolation steam.
Adhesive layer 150 is attached to the surface of insulating layer 140.Wherein, the moulding process of adhesive layer 150 can be with insulating layer 140
Moulding process it is identical.The color of adhesive layer 150 is generally milky or partially transparent, and thickness is also generally at 5 microns or less.
Adhesive layer 150 is closeer by quality, the isolation preferable colloid of steam effect is formed by curing.Therefore, adhesive layer 150 can also further hinder
Only moisture metal lead wire pattern 130.Moreover, the anti-steam ability of adhesive layer 150 is better than insulating layer 140.Pass through insulating layer
140 are combined with adhesive layer 150, both can guarantee that touch module 100 normally realizes function, can also be effectively by metal lead wire pattern
130 are isolated with hot and humid environment.Therefore, metal lead wire pattern 130 will be not easy to be corroded or occur silver migration.
As shown in figure 3, in the present embodiment, metal lead wire pattern 130 backwards to visible area side edge relative to transparent
Lead pattern 123 inside contracts, to form first step 21, insulating layer between transparent lead pattern 123 and metal lead wire pattern 130
140 are filled in first step 21.
Specifically, the edge of metal lead wire pattern 130 is not aligned with transparent lead pattern 123, metal lead wire pattern 130
Edge generally inside contract 30 microns or more of distance.Therefore, when printing or being coated with insulating materials, insulating materials will naturally flow
Into first step 21, so that finally obtained insulating layer 140 is also filled in first step 21.In this way, insulating layer 140 can be whole
Body covers metal lead wire pattern 130, can make insulation effect more preferably.
In the present embodiment, the edge of adhesive layer 150 towards visible area side is inside contracted relative to insulating layer 140, exhausted
Second step 22 is formed between edge layer 140 and adhesive layer 150.
Specifically, adhesive layer 150 and the edge of insulating layer 140 are also not perfectly aligned.In the side of visible area, adhesive layer
150 edge generally inside contracts 15 to 110 microns.When fitting assembles touch screen 10, due to the presence of second step 22, can be improved
The segment difference filling capacity of same thickness cementing layer 103.Therefore, under the premise of not increasing by 103 thickness of cementing layer, it is ensured that visual
Area is not in bubble close to the position of metal lead wire pattern 130.
In the present embodiment, adhesive layer 150 is inside contracted backwards to the edge of visible area side relative to insulating layer 140, exhausted
Third step 23 is formed between edge layer 140 and adhesive layer 150.
Specifically, adhesive layer 150 and the edge of 140 two sides of insulating layer are unjustified, second step 22 and third step 23
It is respectively formed in the opposite sides of adhesive layer 150.Similarly, the presence of third step 23 also can be avoided bubble during fitting
It generates.
Further, in the present embodiment, adhesive layer 150 covers metal and draws in the projection on 130 surface of metal lead wire pattern
Edge of the line pattern 130 backwards to visible area side.
That is, adhesive layer 150 inside contracts distance backwards to the edge of visible area side, it is less than metal lead wire pattern 130
Inside contract distance.Wherein, the distance that inside contracts at 150 edge of adhesive layer is generally 15 microns.Therefore, adhesive layer 150 can integrally cover
Lid metal lead wire pattern 130 so that adhesive layer 150 to the isolation effect of metal lead wire pattern 130 more preferably.
In the present embodiment, touch module 100 further includes optical adjustment layer 180, and optical adjustment layer 180 is held on hard conating
Between 160 and transparency conducting layer 120.Wherein, optical adjustment layer 180 can reduce between hard conating 160 and transparency conducting layer 120
Refringence plays a transition role, to be conducive to improve the optical effect of touch module 100.
Above-mentioned touch screen 10 and touch module 100, the surface of metal lead wire pattern 130 be sequentially laminated with insulating layer 140 and
Adhesive layer 150.Insulating layer 140 can play the role of being dielectrically separated to metal lead wire pattern 130, may also function as the work of isolation steam
With.In addition, adhesive layer 150 can also further prevent moisture metal lead wire pattern 130.Moreover, the anti-steam of adhesive layer 150
Ability is better than insulating layer 140.It is combined by insulating layer 140 with adhesive layer 150, both can guarantee that touch module 100 normally realizes function
Can, also effectively metal lead wire pattern 130 can be isolated with hot and humid environment.Therefore, can be effectively prevented from contact conductor because
Metal lead wire pattern 130 occurs silver migration or is corroded and electric conductivity is impacted, so that above-mentioned touch screen 10 and touch-control mould
The reliability of group 100 is significantly improved.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. a kind of touch module has visible area and the lead district being circumferentially arranged along the visible area, which is characterized in that described
Touch module includes:
Substrate layer；
It is formed in the transparency conducting layer of the substrate layer surface, the transparency conducting layer forms transparent electrode in the visible area
Pattern, and transparent lead pattern is formed in the lead district；
Metal lead wire pattern is attached to the surface of the transparent lead pattern and collectively forms electrode with the transparent lead pattern
Lead；
Insulating layer is attached to the surface of the metal lead wire pattern；And
Adhesive layer is attached to the surface of the insulating layer.
2. touch module according to claim 1, which is characterized in that the metal lead wire pattern is backwards to the visible area one
The edge of side is inside contracted relative to the transparent lead pattern, between the transparent lead pattern and the metal lead wire pattern
First step is formed, the insulating layer is filled in the first step.
3. touch module according to claim 1, which is characterized in that side of the adhesive layer towards the visible area side
Edge is inside contracted relative to the insulating layer, to form second step between the insulating layer and the adhesive layer.
4. touch module according to claim 1, which is characterized in that side of the adhesive layer backwards to the visible area side
Edge is inside contracted relative to the insulating layer, to form third step between the insulating layer and the adhesive layer.
5. touch module according to claim 4, which is characterized in that the adhesive layer is in the metal lead wire patterned surfaces
Projection, cover the metal lead wire pattern backwards to the edge of the visible area side.
6. touch module according to any one of claims 1 to 5, which is characterized in that the substrate layer is cyclic olefin polymerization
Nitride layer, and opposite two surfaces of the substrate layer are attached with hard conating, the transparency conducting layer is attached to one of institute
State the surface of hard conating.
7. touch module according to claim 6, which is characterized in that being attached on the surface of another hard conating can
The protective film layer removed.
8. touch module according to claim 7, which is characterized in that the protective film layer is polypropylene layer or gathers to benzene two
Two ester layer of formic acid second.
9. touch module according to claim 6, which is characterized in that it further include optical adjustment layer, the optical adjustment layer
It is held between the hard conating and the transparency conducting layer.
10. a kind of touch screen characterized by comprising
Cover board；
Display module；And
At least one is such as the described in any item touch modules of the claims 1 to 9, the cover board, at least one described touch-control
Mould group and the display module stack gradually and gluing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822005966.0U CN209182796U (en) | 2018-11-30 | 2018-11-30 | Touch screen and its touch module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822005966.0U CN209182796U (en) | 2018-11-30 | 2018-11-30 | Touch screen and its touch module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209182796U true CN209182796U (en) | 2019-07-30 |
Family
ID=67375214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201822005966.0U Active CN209182796U (en) | 2018-11-30 | 2018-11-30 | Touch screen and its touch module |
Country Status (1)
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110489017A (en) * | 2019-09-27 | 2019-11-22 | 业成科技（成都）有限公司 | Touch screen, touching display screen and intelligent terminal |
| CN110825262A (en) * | 2019-10-29 | 2020-02-21 | 昆山龙腾光电股份有限公司 | Touch panel, manufacturing method of touch panel and display device |
| TWI703484B (en) * | 2019-10-10 | 2020-09-01 | 大陸商業成科技（成都）有限公司 | Improved insulation protection structure |
| CN111625116A (en) * | 2020-04-10 | 2020-09-04 | 南昌欧菲显示科技有限公司 | Touch module, module manufacturing process and electronic device |
-
2018
- 2018-11-30 CN CN201822005966.0U patent/CN209182796U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110489017A (en) * | 2019-09-27 | 2019-11-22 | 业成科技（成都）有限公司 | Touch screen, touching display screen and intelligent terminal |
| CN110489017B (en) * | 2019-09-27 | 2022-08-30 | 业成科技（成都）有限公司 | Touch screen, touch display screen and intelligent terminal |
| TWI703484B (en) * | 2019-10-10 | 2020-09-01 | 大陸商業成科技（成都）有限公司 | Improved insulation protection structure |
| CN110825262A (en) * | 2019-10-29 | 2020-02-21 | 昆山龙腾光电股份有限公司 | Touch panel, manufacturing method of touch panel and display device |
| CN110825262B (en) * | 2019-10-29 | 2023-06-23 | 昆山龙腾光电股份有限公司 | Touch panel, manufacturing method of touch panel and display device |
| CN111625116A (en) * | 2020-04-10 | 2020-09-04 | 南昌欧菲显示科技有限公司 | Touch module, module manufacturing process and electronic device |
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Effective date of registration: 20210416 Address after: 231323 Building 1, precision electronics industrial park, Hangbu Town, Shucheng County, Lu'an City, Anhui Province Patentee after: Anhui jingzhuo optical display technology Co.,Ltd. Address before: 215131 No. 233 Kangyang Road, Huangdi Town, Xiangcheng District, Suzhou City, Jiangsu Province Patentee before: Suzhou OFilm Tech. Co.,Ltd. |