CN104407734B - The manufacture method and touch screen of touch screen - Google Patents
The manufacture method and touch screen of touch screen Download PDFInfo
- Publication number
- CN104407734B CN104407734B CN201410612728.XA CN201410612728A CN104407734B CN 104407734 B CN104407734 B CN 104407734B CN 201410612728 A CN201410612728 A CN 201410612728A CN 104407734 B CN104407734 B CN 104407734B
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- CN
- China
- Prior art keywords
- touch screen
- ito layer
- marginal zone
- layer
- contact conductor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/13338—Input devices, e.g. touch panels
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
Abstract
The invention discloses a kind of manufacture method of touch screen, including ITO layer is plated on the transparent substrate, ITO layer covering marginal zone and the face inner region surrounded by the marginal zone；The ITO layer of face inner region is patterned, forms transparent touch electrode；Silver paste is printed in the ITO layer of the marginal zone and is cured, forms silver slurry layer；And the ITO layer of the marginal zone and silver paste layer are fabricated to contact conductor；One end of the contact conductor connects the transparent touch electrode, and the other end connects the wiring board of touch screen.The present invention also provides a kind of touch-control screen structure.Touch screen manufacture method provided by the invention causes touch screen to have stable line conduction so that the service life and function of touch screen are all enhanced.
Description
Technical field
The present invention relates to technical field of liquid crystal display, more particularly to a kind of manufacture method of touch screen and a kind of touch screen
Structure.
Background technology
Intelligence is the most important development trend of post-industrial age manufacturing industry, and touch screen preferably resolves intelligent Process
In human-computer interaction bottleneck problem, and change its business model (using smart mobile phone as typical case), promote whole industrial chain and be good for
Kang Fazhan, therefore possess bright prospects, touch screen is widely used in various numerals as a kind of new human-computer interaction interface
In information system, from small sized product such as mobile phone, digital product, e-book, to medium-sized product such as automatic navigator, game machine, family
Electrical appliance, industry control instrument, then it is upper it can be seen that touch-control screen products to large product such as common query system, Medical Instruments etc..
With the release of apple (iPhone) mobile phone, the dynamics that touch-screen is applied on mobile phone is greatly have stimulated, is applied on mobile phone
Touch-screen has become a kind of popular prevailing custom, in addition application of the touch-screen on automatic navigator (GPS), therefore to the need of touch-screen
Ask increasing, its market prospects is very considerable.
By touch sensible principle, existing touch-screen is broadly divided into resistance-type, condenser type, surface infrared type touch-screen.Wherein,
Capacitive touch screen has that simple in structure, light transmittance is high, rub resistance, resistance to ambient humidity temperature change, service life are long, achievable
The advantages that multiple point touching, and increasingly become the market centre and market focus of touch-screen.
As the application for touching screen products is more and more wider, the requirement to production technology is also more and more stringenter.Silver paste is current
A kind of most popular conductive material of touch-control industry, realizes that the transmission of sensor signal can improve transmission effect by silver paste line
Rate.But due to the adhesive force difference of silver, in the process of manufacture of touch screen, easily there is silver powder and takes off in printed silver wire
Falling, have that Pinhole-shaped transmission etc. is bad after silver wire baking, these silver wire defects can cause silver wire resistance value to increase, or even open circuit occur,
So that signal can not normal transmission, touch screen disabler.
Therefore, design provides the manufacture method of touch screen, can solve money drawbacks described above so that touch screen, which has, to be stablized
Function, the problem persistently studied for industry.
The content of the invention
The present invention provides a kind of manufacture method of touch screen and the structure of touch screen, solve what the defects of silver wire brought
The problem of touch screen is bad, avoids silver paste from coming off, breaking phenomena caused by transmission etc. so that there is touch screen stable circuit to lead
It is logical so that the service life and function of touch screen are all enhanced.
To achieve these goals, embodiment of the present invention provides following technical solution：
On the one hand, the present invention provides a kind of manufacture method of touch screen, including：
ITO layer is plated on the transparent substrate, the transparent substrate includes marginal zone and the face inner region surrounded by the marginal zone,
The ITO layer covers the marginal zone knead dough inner region of the transparent substrate；
The ITO layer of the face inner region is patterned, forms transparent touch electrode, and retain the ITO layer of the marginal zone；
Silver paste is printed in the ITO layer of the marginal zone and is cured, forms silver slurry layer；And
The ITO layer of the marginal zone and silver paste layer are fabricated to contact conductor；
The contact conductor includes upper and lower two layers, and lower floor is formed by the ITO layer and upper strata is formed by silver paste layer, institute
State lower floor to be arranged between transparent substrate and the upper strata, one end of the contact conductor connects the transparent touch electrode, separately
One end connects the wiring board of touch screen.
Wherein, " ITO layer of the face inner region is patterned, forms transparent touch electrode, and retain the marginal zone
The step of ITO layer ", includes：To having plated the acidproof printing of transparent substrate progress of the ITO layer, etching or having covered photoresist,
Exposure, development, etching, to form the transparent touch electrode and retain the ITO layer of marginal zone.
Wherein, the step of " ITO layer of the marginal zone and silver paste layer being fabricated to contact conductor " includes：Pass through radium
The mode penetrated obtains the contact conductor.
Wherein, energy density and part can be obtained by optics into focus into hot spot using the laser beam of Laser machine stand
High temperature, makes silver slurry layer and ITO layer fusing, the gasification or chemical change of laser beam irradiation position, obtains the contact conductor.
Wherein, the line width of the contact conductor and line-spacing are 15-45 μm.
Wherein, the diameter of the hot spot is less than or equal to 0.01mm, and the energy density scope is 108w/cm2~1010w/
Cm2, the temperature of the localized hyperthermia is 10000 DEG C.
Wherein, the thickness of the ITO layer is 15-50nm, and the thickness of silver paste layer is 5-10 μm.
On the other hand, the present invention also provides a kind of touch screen, including transparent substrate, multiple transparent touch electrodes and multiple electricity
Pole lead, transparent substrate include marginal zone and the face inner region surrounded by the marginal zone；Multiple transparent touch electrodes are arranged at institute
State face inner region；Multiple electrodes lead is arranged at the marginal zone；The contact conductor includes two layers, the conduction material of the lower floor
Matter is identical with the transparent touch electrode material, and the conductive material electrical conductivity on the upper strata is more than the conductance of underlying conductive material
Rate, the lower floor are arranged between transparent substrate and the upper strata, and the length of the lower floor is greater than or equal to the length on the upper strata
Degree, one end of the contact conductor connect the transparent touch electrode, and the other end connects the wiring board of touch screen.
Wherein, the conductive material of the lower electrode lead and the transparent touch electrode is ITO.
Wherein, the conductive material of the upper electrode lead is cured silver paste.
Wherein, the thickness of the lower electrode lead is 15-50nm, and the thickness of the upper electrode lead is 5-10 μm.
The present invention is by the way that silver slurry layer is printed in the ITO layer of marginal zone so that and contact conductor has preferable adhesive force,
It is not easy phenomena such as coming off, transmission occur, prevents that touch screen is breaking, and the ITO layer of the marginal zone is made into contact conductor,
So that touch screen provided by the invention has two-layer electrode cabling, therefore the present invention has dual line conduction structure so that
The service life and function of touch screen are all enhanced.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the flow chart of the manufacture method of touch screen provided by the invention；
Fig. 2 is the schematic diagram of touch-control screen structure provided by the invention.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment, belongs to the scope of protection of the invention.
Referring to Fig. 1, the present invention provides a kind of manufacture method of touch screen, include the following steps：
Step 101, ITO layer is plated on the transparent substrate, and the transparent substrate includes marginal zone and surrounded by the marginal zone
Face inner region.Specifically, plate indium oxide layer tin (being commonly called as ITO) film processing and fabricating using the method for magnetron sputtering and form institute
State ITO layer, in addition the methods that others make ITO layers also have vacuum vapor deposition method, chemical vapour deposition technique, spraying process, colloidal sol-solidifying
The methods of glue method.
Step 102, the ITO layer of the face inner region is patterned, forms transparent touch electrode, and retain the marginal zone
ITO layer.Specifically, in present embodiment, a kind of embodiment of this step includes：To having plated the described of the ITO layer
Bright substrate carries out acidproof printing, then ITO layer is etched to form transparent touch electrode.Wherein, in the ITO layer of face inner region
Acid-proof ink is printed according to corresponding ITO electrode pattern, acid-proof ink is then completely covered in the ITO layer of marginal zone, to retain side
The ITO layer in edge area.The another embodiment of this step includes：Photoresist is covered to the transparent substrate for having plated the ITO layer；
Development is exposed photoresist according to the pattern of transparent touch electrode, while retains the light on the marginal zone of the transparent substrate
Photoresist；ITO layer is etched in the face inner region to form the transparent touch electrode；Peel off the photoresist.
Step 103, silver paste is printed in the ITO layer of the marginal zone and is cured, forms silver slurry layer.Form the same of silver slurry layer
When can obtain the general profile of silver paste circuit, can so save the material of silver paste.
Step 104, the ITO layer of the marginal zone and silver paste layer are fabricated to contact conductor.Specifically, this step
Including：The contact conductor is obtained by radium-shine mode.Using Laser machine stand laser beam can by optics into focus into
Hot spot, the diameter of the hot spot are less than or equal to 0.01mm, obtain 108w/cm2~1010w/cm2 energy density and 10000 DEG C
Localized hyperthermia, make laser beam irradiation position the ITO layer and silver slurry layer fusing, gasification or chemical change, obtain electrode draw
Line.The line width and line-spacing of the contact conductor are 15-45 μm.
The step of " ITO layer of the marginal zone and silver paste layer are fabricated to contact conductor ", includes：By radium-shine
Mode obtains the contact conductor.
The contact conductor includes upper and lower two layers, and lower floor is formed by the ITO layer, and upper strata is formed by silver paste layer, institute
State lower floor to be arranged between transparent substrate and the upper strata, the contact conductor is used to the transparent touch electrode being electrically connected to
The wiring board of the touch screen, so as to be connected by the master control circuit of the wiring board and electronic equipment.That is, described contact conductor
One end connects the transparent touch electrode, and the other end connects the wiring board of touch screen.The wiring board is usually flexible circuit board.
The bilevel line width of the contact conductor is equal.
In one embodiment of the present invention, the thickness of the ITO layer is 15-50nm, and the thickness of silver paste layer is 5-10 μ
m。
Marginal zone of the invention by the way that silver slurry layer to be printed on to ITO layer so that silver slurry layer has preferable adhesive force, does not allow
Easily there is phenomena such as coming off, transmission, prevent that touch screen is breaking.And the ITO layer of the marginal zone is made into contact conductor so that
Touch screen provided by the invention has two-layer electrode cabling, therefore the present invention has dual line conduction structure so that touch-control
The service life and function of screen are all enhanced.
Referring to Fig. 2, the present invention also provides a kind of touch screen, including transparent substrate 10, multiple transparent touch electrodes 20 and
Multiple electrodes lead 30.Transparent substrate 10 includes marginal zone and the face inner region surrounded by the marginal zone.Multiple transparent touch electricity
Pole 20 is arranged at the face inner region.Multiple electrodes lead 30 is arranged at the marginal zone.The contact conductor 30 is included up and down
Two layers 32,34, the conductive material of the lower floor 32 is identical with 20 material of transparent touch electrode, the conduction material on the upper strata 34
Matter electrical conductivity is more than the electrical conductivity of 32 conductive material of lower floor, the lower floor 32 be arranged at transparent substrate 10 and the upper strata 34 it
Between, the length of the lower floor 32 is greater than or equal to the length on the upper strata 34, and one end connection of the contact conductor 30 is described
Bright touch control electrode 20, the wiring board of other end connection touch screen (figure is not shown).The contact conductor 30 include upper and lower two layers 32,
34 line widths are equal.
The conductive material of the lower electrode lead and the transparent touch electrode 20 is ITO.The upper electrode draws
The conductive material of line is silver paste.
In the touch screen, the thickness of the lower electrode lead is 15-50nm, and the thickness of the upper electrode lead is
5-10μm。
The setting that the present invention passes through two layers of contact conductor 30 so that touch screen has dual line conduction structure so that
The service life and function of touch screen are all enhanced.
Embodiments described above, does not form the restriction to the technical solution protection domain.It is any in above-mentioned implementation
Modifications, equivalent substitutions and improvements made within the spirit and principle of mode etc., should be included in the protection model of the technical solution
Within enclosing.
Claims (10)
- A kind of 1. manufacture method of touch screen, it is characterised in that including：ITO layer is plated on the transparent substrate, and the transparent substrate includes marginal zone and the face inner region surrounded by the marginal zone, described ITO layer covers the marginal zone and the face inner region；The ITO layer of the face inner region is patterned, forms transparent touch electrode, and retain the ITO layer of the marginal zone；Silver paste is printed in the ITO layer of the marginal zone and is cured, forms silver slurry layer；AndThe ITO layer of the marginal zone and silver paste layer are fabricated to contact conductor, to form dual line conduction structure；The contact conductor includes upper and lower two layers, and lower floor is formed by the ITO layer, and upper strata is formed by silver paste layer, under described Layer is arranged between transparent substrate and the upper strata, and one end of the contact conductor connects the transparent touch electrode, the other end Connect the wiring board of touch screen.
- 2. the manufacture method of touch screen as claimed in claim 1, it is characterised in that " by the ITO layer pattern of the face inner region Change, formed transparent touch electrode, and retain the ITO layer of the marginal zone " the step of include：To plated the ITO layer the transparent substrate carry out it is acidproof printing, etch or cover photoresist, exposure, development, erosion Carve, to form the transparent touch electrode and retain the ITO layer of marginal zone.
- 3. the manufacture method of touch screen as claimed in claim 1, it is characterised in that " by the ITO layer of the marginal zone and described Silver slurry layer is fabricated to contact conductor " the step of include：The contact conductor is obtained by radium-shine mode.
- 4. the manufacture method of touch screen as claimed in claim 3, it is characterised in that can be passed through using the laser beam of Laser machine stand Optics into focus obtains energy density and localized hyperthermia, the silver slurry layer and ITO layer for making laser beam irradiation position melts into hot spot Change, gasification or chemical change, obtain the contact conductor.
- 5. such as the manufacture method of claim 4 to the touch screen, it is characterised in that the line width and line-spacing of the contact conductor It is 15-45 μm.
- 6. such as the manufacture method of claim 4 to the touch screen, it is characterised in that the diameter of the hot spot is less than or equal to 0.01mm, the energy density scope are 108w/cm2~1010w/cm2, and the temperature of the localized hyperthermia is 10000 DEG C.
- 7. the manufacture method of touch screen as claimed in claim 1, it is characterised in that the thickness of the ITO layer is 15-50nm, The thickness of silver paste layer is 5-10 μm.
- 8. a kind of touch screen, including：Transparent substrate, including marginal zone and the face inner region that is surrounded by the marginal zone；Multiple transparent touch electrodes, are arranged at the face inner region；Multiple electrodes lead, is arranged at the marginal zone；It is characterized in that：The contact conductor includes the upper and lower, to form dual line conduction structure, the lower floor Conductive material is identical with the transparent touch electrode material, and the conductive material electrical conductivity on the upper strata is more than underlying conductive material Electrical conductivity, the conductive material of the upper electrode lead are cured silver paste, the lower floor be arranged at transparent substrate with it is described on Between layer, the length of the lower floor is greater than or equal to the length on the upper strata, and one end connection of the contact conductor is described transparent Touch control electrode, the other end connect the wiring board of touch screen.
- 9. touch screen as claimed in claim 8, it is characterised in that the lower electrode lead and the transparent touch electrode Conductive material is ITO.
- 10. touch screen as claimed in claim 9, it is characterised in that the thickness of the lower electrode lead is 15-50nm, institute The thickness for stating upper electrode lead is 5-10 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410612728.XA CN104407734B (en) | 2014-11-04 | 2014-11-04 | The manufacture method and touch screen of touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410612728.XA CN104407734B (en) | 2014-11-04 | 2014-11-04 | The manufacture method and touch screen of touch screen |
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| Publication Number | Publication Date |
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| CN104407734A CN104407734A (en) | 2015-03-11 |
| CN104407734B true CN104407734B (en) | 2018-04-27 |
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| CN201410612728.XA Active CN104407734B (en) | 2014-11-04 | 2014-11-04 | The manufacture method and touch screen of touch screen |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI539351B (en) * | 2015-03-26 | 2016-06-21 | 友達光電股份有限公司 | Touch device |
| CN106598318B (en) * | 2015-10-20 | 2023-05-30 | 长鸿光电(厦门)有限公司 | Touch panel and preparation method thereof |
| US9857930B2 (en) * | 2015-12-16 | 2018-01-02 | 3M Innovative Properties Company | Transparent conductive component with interconnect circuit tab comprising cured organic polymeric material |
| CN107340941A (en) * | 2017-06-28 | 2017-11-10 | 昆山国显光电有限公司 | A kind of capacitive touch screen and preparation method thereof |
| CN109545437B (en) * | 2017-09-22 | 2021-07-30 | 南昌欧菲显示科技有限公司 | Transparent conductive film, touch screen and preparation method thereof |
| CN109545432B (en) * | 2017-09-22 | 2021-08-10 | 南昌欧菲显示科技有限公司 | Transparent conductive film, touch screen and preparation method thereof |
| CN110955359A (en) * | 2018-09-26 | 2020-04-03 | 南昌欧菲触控科技有限公司 | Touch screen, double-window process of touch screen and touch display device |
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| CN103309510A (en) * | 2013-06-08 | 2013-09-18 | 南昌欧菲光科技有限公司 | Touch screen electrode manufacturing method |
| CN103713772A (en) * | 2013-12-31 | 2014-04-09 | 东莞市平波电子有限公司 | Technology for manufacturing GF single-layer multi-point structure touch screen |
| CN204331654U (en) * | 2014-11-04 | 2015-05-13 | 苏州欧菲光科技有限公司 | Touch screen |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5928268B2 (en) * | 2012-09-12 | 2016-06-01 | コニカミノルタ株式会社 | Conductive film, touch panel, and display device |
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2014
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103309510A (en) * | 2013-06-08 | 2013-09-18 | 南昌欧菲光科技有限公司 | Touch screen electrode manufacturing method |
| CN103713772A (en) * | 2013-12-31 | 2014-04-09 | 东莞市平波电子有限公司 | Technology for manufacturing GF single-layer multi-point structure touch screen |
| CN204331654U (en) * | 2014-11-04 | 2015-05-13 | 苏州欧菲光科技有限公司 | Touch screen |
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Address after: 215143 Kangyang Road 233, Huangdi Town, Xiangcheng District, Suzhou City, Jiangsu Province Patentee after: SUZHOU OFILM TECH Co.,Ltd. Patentee after: Nanchang OFilm Tech. Co.,Ltd. Patentee after: Ophiguang Group Co.,Ltd. Address before: 215143 Kangyang Road 233, Huangdi Town, Xiangcheng District, Suzhou City, Jiangsu Province Patentee before: SUZHOU OFILM TECH Co.,Ltd. Patentee before: Nanchang OFilm Tech. Co.,Ltd. Patentee before: OFilm Tech Co.,Ltd. Address after: 215143 Kangyang Road 233, Huangdi Town, Xiangcheng District, Suzhou City, Jiangsu Province Patentee after: SUZHOU OFILM TECH Co.,Ltd. Patentee after: Nanchang OFilm Tech. Co.,Ltd. Patentee after: OFilm Tech Co.,Ltd. Address before: 215143 Kangyang Road 233, Huangdi Town, Xiangcheng District, Suzhou City, Jiangsu Province Patentee before: SUZHOU OFILM TECH Co.,Ltd. Patentee before: Nanchang OFilm Tech. Co.,Ltd. Patentee before: Shenzhen OFilm Tech Co.,Ltd. |
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Effective date of registration: 20210107 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: 215143 Kangyang Road 233, Huangdi Town, Xiangcheng District, Suzhou City, Jiangsu Province Patentee before: SUZHOU OFILM TECH Co.,Ltd. Patentee before: Nanchang OFilm Tech. Co.,Ltd. Patentee before: Ophiguang Group Co.,Ltd. |
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