CN107943357A - A kind of preparation method of metal grill capacitive touch screen - Google Patents
A kind of preparation method of metal grill capacitive touch screen Download PDFInfo
- Publication number
- CN107943357A CN107943357A CN201711442760.8A CN201711442760A CN107943357A CN 107943357 A CN107943357 A CN 107943357A CN 201711442760 A CN201711442760 A CN 201711442760A CN 107943357 A CN107943357 A CN 107943357A
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- China
- Prior art keywords
- preparation
- touch screen
- capacitive touch
- metal grill
- metal
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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
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
-
- 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 present invention relates to a kind of preparation method of metal grill capacitive touch screen.A kind of preparation method of metal grill capacitive touch screen：First, photoresist layer is coated with tempered glass cover plate；2nd, the photoresist figure needed for exposure imaging metal grid electrode；3rd, reserved groove is etched；4th, photoresist layer is removed；5th, conductive silver paste is scraped and be painted into the reserved groove of etching, carry out low-temperature setting, form metal grill touch control electrode and perimeter leads；Complete the preparation of metal grill capacitive touch screen.A kind of preparation method of metal grill capacitive touch screen of the present invention, avoids indium tin oxide material that use cost is high and the vacuum coating equipment needed for sputtering indium tin oxide transparent conductive layer；Touch control electrode and perimeter leads complete at the same time, simplify structure and processing procedure, reduce production cost, are advantageously implemented the lightening and high transmittance of touch-control product；Rimless touch-screen can be made.
Description
Technical field
The present invention relates to the field of touch-screen, more particularly to a kind of preparation method of metal grill capacitive touch screen.
Background technology
With the progress of modern touch technology, touch-screen applications scope constantly expands, touch controllable function in mobile phone, tablet computer
Almost become standard configuration；In laptop, super basis, all-in-one machine, the product for possessing touch controllable function occupies the market share
Also constantly expand；From the point of view of touch-screen industry, touch-screen low cost, improve the direction that production is future development；It is and right
In ordinary consumer, the frivolous property of touch-screen, high-permeability then can more be paid close attention to；With the development of touch technology, tradition
Resistive touch screen progressively substituted by more frivolous, touch-control performance more preferably capacitance-type touch screen technology；In many condenser types
It is optimal with the frivolous property of the touch-screen of OGS and TOL structures, transmitance in touch screen structure；For existing OGS and TOL techniques, industry
Boundary collapses bridge structure to form touch electrode structure usually using individual layer ITO or ITO, needs to sink using vacuum sputtering equipment in technique
Product ito thin film, then forms figure, bridge structure need to also make transparent insulating layer material under the bridge that collapses for collapsing using yellow light processing procedure
Material；Either which kind of structure, is required for the sputtering vacuum process deposition ITO nesa coating layer and ITO black-out layers of costliness；In order to
Cost is reduced, industry has begun to attempt to substitute transparent conduction using metal grill and metal nanometer line nesa coating
Layer, metal nanometer line nesa coating mist degree when face resistance is relatively low can significantly increase, therefore limit its application, and metal mesh
Lattice (metal mesh) using extremely low-impedance metal material because form electrode, therefore can realize the filament of touch control electrode
Change.
Industry has a variety of metal mesh technologies at present：Adopted extensively to have two kinds, one kind is Cu metals metal
Mesh (Atmel, 3M etc.), another kind are halogenation silver nano-grain metal mesh (Fujifilm), by metal mesh electricity
Pole is made in PET film, and then PET nesa coatings are fitted on glass cover-plate using OCA film coating process, forms GFF
Or the capacitive touch screen structure of GF2 structures, such a processing procedure is not only due to the yield issues increase cost of fitting, also as attaching
PET film and the thickness for adding touch-screen, are unfavorable for that product is lightening and lifting product transmitance.
The content of the invention
The present invention provides a kind of preparation method of metal grill capacitive touch screen, the sputtering that use cost is high is avoided
Indium tin oxide transparent conductive layer and the required vacuum sputtering equipment of tin indium oxide Vanishing Hidden-image layer, are greatly reduced cost；At the same time
Using metal grill low impedance characteristic, touch control electrode and perimeter leads are completed at the same time, simplifies structure and processing procedure, reduces into
This；Fall the structure of frame (BM) since the present invention is simplified, Rimless touch-screen can be made.
A kind of preparation method of metal grill capacitive touch screen, specific method carry out according to the following steps：First, in steel
Change and be coated with photoresist layer on glass cover-plate；2nd, exposure imaging removes part photoresist layer on the photoresist bed of material, is formed
Photoresist figure needed for metal grid electrode；3rd, etched on glass by wet-etching technology using etching liquid and metal
The corresponding reserved groove of grid electrode figure；4th, remaining photoresist layer is removed；5th, conductive silver paste is scraped and is painted into etching
In reserved groove, low-temperature setting is carried out, forms metal grill touch control electrode and perimeter leads；Complete metal grill capacitive touch
Touch the preparation of screen.
Wet-etching technology in the step 3 is spray etching technics or dip etching technics.
Etching liquid in the step 3 is hf etching liquid.
It is 2-10 μm that the width of groove is stayed in preparation in the step 3.
It is 3-4 μm that the width of groove is stayed in preparation in the step 3.
The conductive silver paste of the step 5 is nano silver low-temperature solidified silver pulp material.
The temperature of low-temperature setting in the step 5 is 80-200 DEG C；The cured time is 10-120min.
The temperature of low-temperature setting in the step 5 is 120 DEG C, and the cured time is 60min.
The metal grill capacitive touch screen of completion is prepared in the step 5, transparent protective layer is coated with its surface, uses
Metal grid electrode and perimeter leads outside to binding area are protected.
Advantages of the present invention：A kind of preparation method of metal grill capacitive touch screen of the present invention, avoids use cost
Vacuum coating equipment needed for high tin indium oxide (ITO) material and sputtering indium tin oxide transparent conductive layer；Gold is utilized at the same time
Belong to grid (metal mesh) low impedance characteristic, touch control electrode and perimeter leads completed at the same time, at the same it is opposite with GFF and
GF2 structure metal mesh, simplify structure and processing procedure, save and are bonded metal nanometer line PET nesa coatings using OCA
Technique on glass cover-plate, avoids the increased cost of yield issues institute by fitting, is advantageously implemented touch-control product
Lightening and high transmittance；Fall the structure of frame (BM) due to simplifying, Rimless touch-screen can be made.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram of the flow of the preparation method of metal grill capacitive touch screen.
Embodiment
In order to deepen the understanding of the present invention, the present invention is done below in conjunction with drawings and examples and is further retouched in detail
State, which is only used for explaining the present invention, and protection scope of the present invention is not formed and is limited.
Embodiment one
As shown in Figure 1, present embodiments providing a kind of preparation method of metal grill capacitive touch screen, specific method is
Carry out according to the following steps：First, photoresist layer 102 is coated with tempered glass cover plate 101；2nd, in the photoresist bed of material 102
Upper exposure imaging removes part photoresist layer, forms the photoresist figure needed for metal grid electrode；3rd, passed through using etching liquid
Wet-etching technology etches reserved groove 104 corresponding with metal grid electrode figure on glass；4th, remaining light is removed
Hinder material layer 102；5th, conductive silver paste is scraped and be painted into the reserved groove 104 of etching, carry out low-temperature setting, form metal grill
Touch control electrode and perimeter leads 105；Complete the preparation of metal grill capacitive touch screen.
Embodiment two
The present embodiment and the difference of embodiment one are：Wet-etching technology in the step 3 etches for spray
Technique is other identical with embodiment one；Wherein, spray etching technics is sprinkling etching technics；Reference numeral 103 in Fig. 1 refers to
Be nozzle used in spray etching technics.
Embodiment three
The present embodiment and the difference of embodiment one are：Wet-etching technology in the step 3 etches work for dip
Skill is other identical with embodiment one；Wherein, dip etching technics is to dip etching technics.
Example IV
The present embodiment and the difference of embodiment one are：Etching liquid in the step 3 is hf etching liquid, its
It is identical with embodiment one.
Embodiment five
The present embodiment and the difference of embodiment one are：It is 2- that the width of groove 104 is stayed in preparation in the step 3
It is 10 μm, other identical with embodiment one；Wherein, the limitation of width is to reach the not visible property of metal grid electrode.
Embodiment six
The present embodiment and the difference of embodiment five are：It is 3-4 that the width of groove 104 is stayed in preparation in the step 3
μm, it is other identical with embodiment five；Wherein, the limitation of width is to reach the not visible property of metal grid electrode.
Embodiment seven
The present embodiment and the difference of embodiment one are：The conductive silver paste of the step 5 is nano silver low-temperature solidified silver
Pulp material is other identical with embodiment one.
Embodiment eight
The present embodiment and the difference of embodiment seven are：The temperature of low-temperature setting in the step 5 is 80-200
℃；The cured time is 10-120min, other identical with embodiment seven.
Embodiment nine
The present embodiment and the difference of embodiment eight are：The temperature of low-temperature setting in the step 5 is 120 DEG C；Gu
The time of change is 60min, other identical with embodiment eight.
Embodiment ten
The present embodiment and the difference of embodiment one are：The metal grill capacitive touch of completion is prepared in the step 5
Screen is touched, transparent protective layer 106 is coated with its surface, for being protected to the metal grid electrode outside binding area and perimeter leads,
It is other identical with embodiment seven.
It should be noted that the selection of hf etching liquid is only the selection of optimization, other etching liquids can be also used；
The selection of spray etching technics and dip etching technics is also the selection of optimization, and other wet-etching technologies also may be selected, can add
Work goes out reserved groove.
A kind of preparation method of metal grill capacitive touch screen of above example, avoids the oxidation that use cost is high
Vacuum coating equipment needed for indium tin (ITO) material and sputtering indium tin oxide transparent conductive layer；Utilize metal grill at the same time
(metal mesh) low impedance characteristic, touch control electrode and perimeter leads are completed at the same time, while are tied relatively with GFF and GF2
Structure metal mesh, simplify structure and processing procedure, save and metal nanometer line PET nesa coatings are fitted in glass using OCA
Technique on glass cover board, avoids the increased cost of yield issues institute by fitting, is advantageously implemented the light of touch-control product
Thinning and high transmittance；Fall the structure of frame (BM) due to simplifying, Rimless touch-screen can be made；This preparation method is fitted
Prepared for the structures such as OGS, TOL and not limited to this structure touch-screen.
It should be noted that the thickness of each Rotating fields is only signal in attached drawing, do not signify actual ratio.
Above-described embodiment should not in any way limit the present invention, all to be obtained by the way of equivalent substitution or equivalency transform
Technical solution all fall within protection scope of the present invention.
Claims (9)
- A kind of 1. preparation method of metal grill capacitive touch screen, it is characterised in that：Specific method is to carry out according to the following steps 's：First, photoresist layer is coated with tempered glass cover plate；2nd, exposure imaging removes part photoresist on the photoresist bed of material Material layer, forms the photoresist figure needed for metal grid electrode；3rd, carved using etching liquid by wet-etching technology on glass Lose reserved groove corresponding with metal grid electrode figure；4th, remaining photoresist layer is removed；5th, conductive silver paste is scraped It is painted into the reserved groove of etching, carries out low-temperature setting, forms metal grill touch control electrode and perimeter leads；Complete metal mesh The preparation of lattice capacitive touch screen.
- A kind of 2. preparation method of metal grill capacitive touch screen according to claim 1, it is characterised in that：The step Wet-etching technology in rapid three is spray etching technics or dip etching technics.
- A kind of 3. preparation method of metal grill capacitive touch screen according to claim 1, it is characterised in that：The step Etching liquid in rapid three is hf etching liquid.
- A kind of 4. preparation method of metal grill capacitive touch screen according to claim 1, it is characterised in that：The step It is 2-10 μm that the width of groove is stayed in preparation in rapid three.
- A kind of 5. preparation method of metal grill capacitive touch screen according to claim 4, it is characterised in that：The step It is 3-4 μm that the width of groove is stayed in preparation in rapid three.
- A kind of 6. preparation method of metal grill capacitive touch screen according to claim 1, it is characterised in that：The step Rapid five conductive silver paste is nano silver low-temperature solidified silver pulp material.
- A kind of 7. preparation method of metal grill capacitive touch screen according to claim 6, it is characterised in that：The step The temperature of low-temperature setting in rapid five is 80-200 DEG C；The cured time is 10-120min.
- A kind of 8. preparation method of metal grill capacitive touch screen according to claim 7, it is characterised in that：The step The temperature of low-temperature setting in rapid five is 120 DEG C, and the cured time is 60min.
- A kind of 9. preparation method of metal grill capacitive touch screen according to claim 1, it is characterised in that：The step The metal grill capacitive touch screen of completion is prepared in rapid five, transparent protective layer is coated with its surface, outside to binding area Metal grid electrode and perimeter leads protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711442760.8A CN107943357A (en) | 2017-12-28 | 2017-12-28 | A kind of preparation method of metal grill capacitive touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711442760.8A CN107943357A (en) | 2017-12-28 | 2017-12-28 | A kind of preparation method of metal grill capacitive touch screen |
Publications (1)
| Publication Number | Publication Date |
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| CN107943357A true CN107943357A (en) | 2018-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711442760.8A Pending CN107943357A (en) | 2017-12-28 | 2017-12-28 | A kind of preparation method of metal grill capacitive touch screen |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108376042A (en) * | 2018-05-04 | 2018-08-07 | 蓝思科技（长沙）有限公司 | Metal grill sensor and touch screen and preparation method thereof and equipment |
| CN110058725A (en) * | 2019-03-06 | 2019-07-26 | 苏州蓝沛光电科技有限公司 | The preparation method of touch screen |
| WO2020000892A1 (en) * | 2018-06-27 | 2020-01-02 | 广州视源电子科技股份有限公司 | Fabrication process for sensing film and fabrication method for touch screen |
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| CN102063951A (en) * | 2010-11-05 | 2011-05-18 | 苏州苏大维格光电科技股份有限公司 | Transparent conductive film and manufacturing method thereof |
| CN102254586A (en) * | 2011-05-05 | 2011-11-23 | 苏州喜仁新材料科技有限公司 | Low-temperature cured conductive silver paste and preparation method and use thereof |
| JP2012014930A (en) * | 2010-06-30 | 2012-01-19 | Sanyo Chem Ind Ltd | Photosensitive resin composition |
| CN103456390A (en) * | 2013-02-05 | 2013-12-18 | 南昌欧菲光科技有限公司 | Conducting film and manufacturing method thereof |
| CN106445225A (en) * | 2016-08-03 | 2017-02-22 | 深圳市骏达光电股份有限公司 | Touch screen and processing method thereof |
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Patent Citations (5)
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| JP2012014930A (en) * | 2010-06-30 | 2012-01-19 | Sanyo Chem Ind Ltd | Photosensitive resin composition |
| CN102063951A (en) * | 2010-11-05 | 2011-05-18 | 苏州苏大维格光电科技股份有限公司 | Transparent conductive film and manufacturing method thereof |
| CN102254586A (en) * | 2011-05-05 | 2011-11-23 | 苏州喜仁新材料科技有限公司 | Low-temperature cured conductive silver paste and preparation method and use thereof |
| CN103456390A (en) * | 2013-02-05 | 2013-12-18 | 南昌欧菲光科技有限公司 | Conducting film and manufacturing method thereof |
| CN106445225A (en) * | 2016-08-03 | 2017-02-22 | 深圳市骏达光电股份有限公司 | Touch screen and processing method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108376042A (en) * | 2018-05-04 | 2018-08-07 | 蓝思科技（长沙）有限公司 | Metal grill sensor and touch screen and preparation method thereof and equipment |
| WO2020000892A1 (en) * | 2018-06-27 | 2020-01-02 | 广州视源电子科技股份有限公司 | Fabrication process for sensing film and fabrication method for touch screen |
| CN110058725A (en) * | 2019-03-06 | 2019-07-26 | 苏州蓝沛光电科技有限公司 | The preparation method of touch screen |
| CN110058725B (en) * | 2019-03-06 | 2021-11-05 | 苏州蓝沛光电科技有限公司 | Preparation method of touch screen |
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Application publication date: 20180420 |
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