CN105335034A - Metal-grid single-film double-faced capacitance screen functional sheet and manufacturing method thereof - Google Patents
Metal-grid single-film double-faced capacitance screen functional sheet and manufacturing method thereof Download PDFInfo
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- CN105335034A CN105335034A CN201510894797.9A CN201510894797A CN105335034A CN 105335034 A CN105335034 A CN 105335034A CN 201510894797 A CN201510894797 A CN 201510894797A CN 105335034 A CN105335034 A CN 105335034A
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- 229910052751 metal Inorganic materials 0.000 claims abstract description 82
- 239000002184 metal Substances 0.000 claims abstract description 82
- 239000000463 material Substances 0.000 claims abstract description 38
- 229920002799 BoPET Polymers 0.000 claims abstract description 37
- 238000005530 etching Methods 0.000 claims abstract description 17
- 238000011161 development Methods 0.000 claims abstract description 13
- 229920002120 photoresistant polymer Polymers 0.000 claims description 28
- 239000010410 layer Substances 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 26
- 239000007769 metal material Substances 0.000 claims description 20
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims description 15
- 229910000423 chromium oxide Inorganic materials 0.000 claims description 15
- 239000011248 coating agent Substances 0.000 claims description 10
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 13
- 229910052802 copper Inorganic materials 0.000 description 13
- 239000010949 copper Substances 0.000 description 13
- MRNHPUHPBOKKQT-UHFFFAOYSA-N indium;tin;hydrate Chemical compound O.[In].[Sn] MRNHPUHPBOKKQT-UHFFFAOYSA-N 0.000 description 12
- 229920000139 polyethylene terephthalate Polymers 0.000 description 12
- 239000005020 polyethylene terephthalate Substances 0.000 description 12
- 230000018109 developmental process Effects 0.000 description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 4
- 208000003351 Melanosis Diseases 0.000 description 4
- 230000032683 aging Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
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- 210000000887 face Anatomy 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 229960004643 cupric oxide Drugs 0.000 description 2
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- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
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- 239000000126 substance Substances 0.000 description 2
- 229910000570 Cupronickel Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
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- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
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Landscapes
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a metal-grid single-film double-faced capacitance screen functional sheet. The metal-grid single-film double-faced capacitance screen functional sheet comprises a PET film and metal grids plated on the two faces of the PET film, and the width of metal wires used for composing the metal grids ranges from one micrometer to 20 micrometers. The invention further discloses a manufacturing method of the metal-grid single-film double-faced capacitance screen functional sheet. Due to the fact that the metal grids which are extremely fine and dense are only formed on the two faces of one PET film, so that after the metal grids on the two sides are powered on, dense touch net points can be formed on the functional sheet. Compared with the prior art, not only is the thickness of the functional sheet greatly decreased, but also the touch control sensitivity of the capacitance screen functional sheet is improved, it is very difficult to observe the metal grids for an observer, the moire pattern phenomenon is avoided, and the display effect is optimized. Meanwhile, due to the fact that the bendability of the PET film is good, one-time exposure, one-time development and one-time etching can be conducted on the two sides of a base material of the functional sheet through a roll-to-roll technology, the manufacturing efficiency is improved, the manufacturing technology is simplified, and the manufacturing cost is reduced.
Description
Technical field
The present invention relates to touch screen technology field, particularly relate to two-sided capacitance plate functional sheet of a kind of metal grill monofilm and preparation method thereof.
Background technology
The technique of the making touch panel function sheet of main flow mainly contains three kinds on the market, the first be glass two-face printing or plate attached transparent ITO (tin indium oxide) layer; The second technique is respectively at two panels PET (polyethyleneterephthalate, poly terephthalic acid class plastics) after the one side of film is coated with ITO base material, plating copper on ITO base material, finally fits together two panels PET contraposition again, forms composite film; The third technique is in two panels PET film, be coated with the two sides that functional sheet produced respectively by ITO base material, and the both sides wire of functional sheet needs by serigraphy silver line or laser wire simultaneously, then by serigraphy one deck dielectric ink protective seam.
But ITO material price is expensive, production cost is high, the first technique can not accomplish Low ESR due to the ITO layer that glass is coated with, especially in wide area touch screen, high impedance has a strong impact on the touch sensitivity of touch panel, even increase driving circuit Design and manufacture cost, and this kind functional sheet thickness is large, transmittance is lower, be unfavorable for the slimming design of touch panel and affect display effect.And glass baseplate is thicker because of its thickness, generally between 0.33 ~ 1.1mm, is difficult to realize frivolous effect, simultaneously frangible, can not buckling work be realized.
Although latter two technique utilizes two-layer PET film to replace glass as base material, because the characteristic of its material during ITO plated film causes the ITO being attached to PET material surface significantly to bend, curved surface operation cannot be realized; And the resistance of these two kinds of functional sheets is all comparatively large, and that conventional is 150 Ω, is difficult to realize high-precision effect; Each one side processing procedure needs twice gold-tinted processing and twice etching, need two panels to fit together simultaneously, therefore production procedure is complicated, manufacture efficiency is lower, foaming and impurity can be produced when fitting simultaneously and affect product yield, if out of true aimed at by the pattern of the ITO in two-layer PET film or metal grill manufacture, moir patterns phenomenon can be there is, when user closely watches display screen, clearly can see the grid on functional sheet, affect display effect.
Summary of the invention
In view of the deficiency that prior art exists, the invention provides and a kind ofly manufacture that efficiency is high, cost is low, good bandability, the two-sided capacitance plate functional sheet of metal grill monofilm being applicable to volume to volume production technology and preparation method thereof.
In order to realize above-mentioned object, present invention employs following technical scheme:
The two-sided capacitance plate functional sheet of a kind of metal grill monofilm, comprises one deck PET film and the metal grill of difference plating on two faces of described PET film, forms the live width of the metal wire of described metal grill between 1 ~ 20 μm.
Further, the live width of described metal wire is between 2 ~ 8 μm.
Further, described metal grill comprises the many described metal wires be arranged in parallel, and the spacing between adjacent two parallel described metal wires is 150 ~ 400 μm.
Further, the spacing between adjacent two parallel described metal wires is 150 ~ 200 μm.
Further, described metal grill outside surface is formed with blackening layer.
Further, all chromium oxide layer is formed with between described PET film and the described metal grill on its two sides.
Another object of the present invention is to the method for making that the two-sided capacitance plate functional sheet of a kind of above-mentioned metal grill monofilm is provided, comprising:
One deck PET film is provided;
To described PET film burin-in process;
One deck chromium oxide material is plated respectively on the two sides of described PET film;
The plated surface layer of metal material of chromium oxide material every layer described;
The surface coating photoresist of metal material every layer described;
Exposure, makes the partially cured formation pattern of described photoresist;
Development, removes the part that described photoresist is uncured;
Etching, to remove part metals material and form the metal grill of the pattern consistent with described photoresist on described metal material.
Further, described step of exposure, described development step and etching step are all carry out in the both sides of described PET film respectively simultaneously.
Further, described step of exposure, described development step and described etching step are all carry out in the liquid sprung up.
Further, the method for making of described metal grill monofilm two-sided capacitance plate functional sheet is also included in after described etching step completes, and forms blackening layer to the surperficial Darkening process of described metal material.
The present invention only forms superfine and intensive metal grill respectively on the two sides of one deck PET film, intensive touch site can be formed on functional sheet after the metal grill of both sides is energized, compared with prior art not only thickness is significantly thinning, and improve the touch-control sensitivity of capacitance plate functional sheet, beholder makes with the naked eye to be difficult to observe metal grill, avoid moir patterns phenomenon, optimize display effect.Simultaneously, owing to using PET film as the functional sheet good bandability of base material, functional sheet of the present invention can by volume to volume technique at base material both sides single exposure, once develop, once etched, improve manufacture efficiency, simplify manufacturing process, reduce manufacturing cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the two-sided capacitance plate functional sheet of metal grill monofilm of the preferred embodiment of the present invention.
Fig. 2 is the manufacture craft schematic diagram of the two-sided capacitance plate functional sheet of metal grill monofilm of the preferred embodiment of the present invention.
Fig. 3 is the cross-sectional view after the double layer of metal material surface coating photoresist of the preferred embodiment of the present invention.
Fig. 4 is the Exposure mode schematic diagram of the preferred embodiment of the present invention.
Fig. 5 is the cross-sectional view after the making material exposure of Fig. 3.
Fig. 6 is the cross-sectional view after the making material etches of Fig. 5.
Fig. 7 is the cross-sectional view after the making material removing photoresistance of Fig. 6.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is described in more detail.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Consult Fig. 1, the two-sided capacitance plate functional sheet of metal grill monofilm of the preferred embodiment of the present invention comprises one deck PET film 10 and the metal grill 20 of difference plating on two faces of PET film 10, wherein, the live width of the metal wire 21 of metal grill 20 is formed between 1 ~ 20 μm.Preferably this metal grill 20 is that ductility becomes with the good copper of electric conductivity.Be understandable that, in other embodiments, metal grill 20 also can be that metal alloy is as cupronickel.Because the ductility of copper and electric conductivity are better than tin indium oxide, bend so can carry out high strength, its surperficial resistance can realize between 5-10 Ω, and its sensitivity of the product gone out by this manufacture of materials improves 500 ~ 1000 times, so can realize the effect of high precision.
Metal grill 20 comprises the many metal wires be arranged in parallel 21, and the spacing between adjacent two parallel metal wires 21 is 150 ~ 400 μm.Preferably, the spacing between adjacent two parallel metal wires 21 is 150 ~ 200 μm, though this capacitance plate functional sheet be applied in also be not easy in the touch-screen product of reduced size in sight.For avoiding moir patterns phenomenon as much as possible, prevent the metal grill 20 can seeing screen surface during naked eyes close-ups capacitance plate, the live width of metal wire 21 is preferably between 2 ~ 8 μm.In giant-screen touch-screen product more than 21 cun, the live width of metal wire 21 can be designed to 20 μm, line-spacing 200-400 μm.
In other embodiments, the metal wire 21 in metal grill 20 also can be other shapes beyond straight line, as polygon, annular, ellipse, irregular close-shaped etc.
In the present embodiment, the outside surface of metal grill 20 is also formed with the blackening layer 22 of anti-oxidation, and this blackening layer 22 can be metal oxide, as cupric oxide, can play protection metal grill 20, prevent its effect that is oxidized, that ensure the serviceable life of product.Meanwhile, this blackening layer 22 can be avoided in the use procedure of touch-screen, and the light sent by display screen is injected in beholder's eye after being reflected by metal grill 20, avoids beholder see metal grill 20 and affect display effect and Consumer's Experience.
Between PET film 10 and the metal grill 20 on its two sides, be all formed with chromium oxide layer 30, metal grill 20 can be combined with PET film 10 better, improve bond strength.
As Fig. 2, the manufacture craft schematic diagram of the two-sided capacitance plate functional sheet of the metal grill monofilm for the preferred embodiment of the present invention; Fig. 3 is the cross-sectional view after the double layer of metal material surface coating photoresist of the preferred embodiment of the present invention; Fig. 4 is the Exposure mode schematic diagram of the preferred embodiment of the present invention; Fig. 5 is the cross-sectional view after the making material exposure of Fig. 3; Fig. 6 is the cross-sectional view after the making material etches of Fig. 5.Fig. 7 is the cross-sectional view after the making material removing photoresistance of Fig. 6.
The method for making making the two-sided capacitance plate functional sheet of this metal grill monofilm mainly comprises:
One deck PET film 10 is provided;
To PET film 10 burin-in process;
One deck chromium oxide material 3 is plated respectively on the two sides of PET film 10;
At the plated surface layer of metal material 2 of every layer of chromium oxide material 3;
At the surface of every layer of metal material 2 coating photoresist 4;
Exposure, makes the partially cured formation pattern of photoresist 4;
Development, removes the part that photoresist 4 is uncured;
Etching, to remove part metals material 2 and form the metal grill 20 of the pattern consistent with photoresist 4 on metal material 2; Meanwhile, etching oxidation chromium material 3, to form the chromium oxide layer 30 of the pattern consistent with photoresist 4 on chromium oxide material 3.
And demoulding, come off better to make etched metal material 2;
Last cleaning products, namely completes functional sheet and makes.
Concrete making step is as follows:
(1) PET film 10 is undertaken aging in the mode of volume to volume by air floating formula aging equipment.Preferred digestion time is about 30min, and aging temperature is 140 DEG C, and PET film 10 is shunk in advance, stabilising membrane material size.Wherein PET film 10 thickness is preferably 50 ~ 200 μm.
(2) chromium oxide material 3 and metal material 2 is plated.By the PET film 10 of aging mistake by filming equipment, adopt the mode of vacuum magnetic-control sputtering to plate chromium oxide material 3 as adhesion layer and metal material 2 respectively successively in two faces of film 1, form PET copper film.
(3) photoresist 4 is applied.The PET copper film made is applied photoresist 4 by coating machine on the surface of every layer of metal material 2; the coating of dual surface lithography glue is completed successively, as shown in Figure 3 through processes such as overtension control-diaphragm stripping-light blockage coating-baking-cooling-Double-face adhesive diaphragm-tension force control-rewindings.Wherein the special positive photoresist of TFT-LCD selected by photoresist 4, its part be irradiated by light can be dissolved in photoresistance developer solution, and the part be not irradiated by light can not be dissolved in photoresistance developer solution, its feature is that good coating homogeneity, film speed are fast, exposure latitude is large, there have to be good linear, high-contrast and high resolving power, and possess good adhesiveness with base material, and high resistance to corrosion.The coating thickness of photoresist is 2 ± 0.5 μm, and coating photoresist uniformity coefficient difference is less than 3%, and tension force controls at 1-5kgf adjustable.The diaphragm of the two-sided attaching of product can ensure that product is injury-free in handling process, plays a protective role.
(4) expose.By coated PET copper film by high-precision exposure machine, control to make it smooth through overtension, additional mask version 5 (as Fig. 4) the two sides of PET copper film while, by CCD (Charge-coupledDevice, charge coupled cell) point captured on mask plate 5 realizes the exactitude position on PET copper film two sides and fixing, then light exposure lamp, by illumination the line pattern on mask plate 5 is mapped on the photoresist 4 on PET copper film.Preferred exposure lamp is high energy mercury vapor lamp, and its power is 8Kw, and the light sent is parallel uv (ultraviolet, ultraviolet) light, and the angulation of uv light and mask plate 5 is 90 ± 0.5 °, and aligning accuracy is ± 2 μm, and light intensity is 200mj/cm
2, finally on pattern, form extremely fine and closely woven grid cell, the degree of accuracy of grid exposure is high.Preferably the wire diameter of this grid cell is 2-5 μm, line-spacing 150-200 μm.
(5) develop.By the PET copper film after exposure by development-curing apparatus, wash-dry up-baking-overlay film rewinding through blowing-stripping-development-pure water successively.After being carried to developing location, before development, need the diaphragm peeling off product two sides.After development, the part not by illumination in photoresist 4 is insoluble to developer solution, and be not irradiated by light in photoresist 4 partially cured after be retained in metal material 2 surface, form corresponding lattice (as Fig. 5).Preferred developer solution is KOH, and concentration is 0.8mol/L, development time 50sec, and temperature is 30 ± 1 DEG C, and pure resistivity of water is 16-18
baking temperature is 140 DEG C, baking time 90sec.Preferably, in present embodiment, development section changes by traditional spray mode the mode that developer solution springs up into, avoids the direct spray due to developer solution to cause the damage of photoresist.After having developed, again attach diaphragm on the two sides of product, again to carry.
(5) etching, demoulding and melanism.Gu by material good for development-film by etching-demoulding-melanism equipment, successively through blowing-stripping-etching-pure water wash-dry up-demoulding-pure water washes-dries up-melanism-pure water washes-dry up-overlay film rewinding process, etch away the part beyond pattern on metal material 2, and form the metal grill 20 of the pattern consistent with photoresist 4 on metal material 2; Meanwhile, etching oxidation chromium material 3, chromium oxide material 3 forms the chromium oxide layer 30 (as Fig. 6) consistent with photoresist 4 pattern; Then washing, the demoulding are to remove photoresist and etch residues etc. (as Fig. 7); Finally, to the surperficial Darkening process of metal grill 20 on two sides, form the blackening layer 22 of protection and reflection-proof effect.Etching solution preferably sulfuric acid hydrogen peroxide mixed liquor, concentration is 0.8mol/L, temperature is 45 ± 1 DEG C, etching period 50sec, liquid parting selects NaOH, and concentration is 0.8mol/L, temperature is 40 ± 3 DEG C, demoulding time 50sec, blackening liquid is selected to use potassium persulfate oxidation under alkaline environment, makes copper film surface produce cupric oxide; Liquid proportion: NaOH 110 ± 10g/L, potassium persulfate 35 ± 5g/L, temperature is 60 ± 5 DEG C, melanism time 120sec, above-mentioned each stage changes by traditional spray mode the mode that chemical liquids springs up into, avoids the spray due to liquid to cause the damage of copper mesh.Wherein pure resistivity of water is 16-18
wherein, step of exposure, development step and etching step are all carry out in the both sides of PET film 10 respectively simultaneously, and are all carry out in the chemical liquid sprung up.
The present invention only forms superfine and intensive metal grill respectively on the two sides of one deck PET film, intensive touch site can be formed on functional sheet after the metal grill of both sides is energized, compared with prior art not only thickness is significantly thinning, and improve the touch-control sensitivity of capacitance plate functional sheet, beholder makes with the naked eye to be difficult to observe metal grill, avoid moir patterns phenomenon, optimize display effect.Simultaneously, owing to using PET film as the functional sheet good bandability of base material, functional sheet of the present invention can by volume to volume technique at base material both sides single exposure, once develop, once etched, improve manufacture efficiency, simplify manufacturing process, reduce manufacturing cost; Owing to adopting PET copper film to instead of traditional ITO, therefore cheap, manufacturing cost reduces 70% than traditional material, and market outlook are far-reaching.
The above is only the embodiment of the application; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the application's principle; can also make some improvements and modifications, these improvements and modifications also should be considered as the protection domain of the application.
Claims (10)
1. the two-sided capacitance plate functional sheet of metal grill monofilm, it is characterized in that, comprise one deck PET film (10) and the metal grill (20) of difference plating on two faces of described PET film (10), form the live width of the metal wire (21) of described metal grill (20) between 1 ~ 20 μm.
2. the two-sided capacitance plate functional sheet of metal grill monofilm according to claim 1, is characterized in that, the live width of described metal wire (21) is between 2 ~ 8 μm.
3. the two-sided capacitance plate functional sheet of metal grill monofilm according to claim 1, it is characterized in that, described metal grill (20) comprises the many described metal wires (21) be arranged in parallel, and the spacing between adjacent two parallel described metal wires (21) is 150 ~ 400 μm.
4. the two-sided capacitance plate functional sheet of metal grill monofilm according to claim 3, is characterized in that, the spacing between adjacent two parallel described metal wires (21) is 150 ~ 200 μm.
5. the two-sided capacitance plate functional sheet of metal grill monofilm according to claim 1, is characterized in that, described metal grill (20) outside surface is formed with blackening layer (22).
6., according to the arbitrary described two-sided capacitance plate functional sheet of metal grill monofilm of claim 1-5, it is characterized in that, between the described metal grill (20) on described PET film (10) and its two sides, be all formed with chromium oxide layer (30).
7. a method for making for the arbitrary described two-sided capacitance plate functional sheet of metal grill monofilm of claim 1-6, is characterized in that, comprising:
One deck PET film (10) is provided;
To described PET film (10) burin-in process;
One deck chromium oxide material (3) is plated respectively on the two sides of described PET film (10);
The plated surface layer of metal material (2) of chromium oxide material (3) every layer described;
Surface coating photoresist (4) of metal material (2) every layer described;
Exposure, makes the partially cured formation pattern of described photoresist (4);
Development, removes the part that described photoresist (4) is uncured;
Etching, to remove part metals material (2) and to go up the metal grill (20) forming the pattern consistent with described photoresist (4) at described metal material (2).
8. the method for making of the two-sided capacitance plate functional sheet of metal grill monofilm according to claim 7, is characterized in that, described step of exposure, described development step and described etching step are all carry out in the both sides of described PET film (10) respectively simultaneously.
9. the method for making of the two-sided capacitance plate functional sheet of metal grill monofilm according to claim 7, is characterized in that, described step of exposure, described development step and described etching step are all carry out in the liquid sprung up.
10. according to the method for making of the arbitrary described two-sided capacitance plate functional sheet of metal grill monofilm of claim 7-9, it is characterized in that, also be included in after described etching step completes, blackening layer (22) is formed to the surperficial Darkening process of described metal material (2).
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| CN201510894797.9A CN105335034B (en) | 2015-12-08 | 2015-12-08 | Two-sided capacitance plate functional sheet of metal grill monofilm and preparation method thereof |
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| CN106843622A (en) * | 2017-03-03 | 2017-06-13 | 赵宗轩 | The preparation method that capacitance touch screen functional sheet is made using Ag ITO |
| WO2017097204A1 (en) * | 2015-12-08 | 2017-06-15 | 金英花 | Metal mesh single-film dual sided capacitive screen sensor and manufacturing method thereof |
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| CN107577381A (en) * | 2017-07-31 | 2018-01-12 | 珠海纳金科技有限公司 | A kind of volume to volume capacitive touch screen functional sheet and preparation method thereof |
| CN107957819A (en) * | 2017-12-29 | 2018-04-24 | 信利光电股份有限公司 | A kind of production method of touch-screen |
| CN108762594A (en) * | 2018-06-26 | 2018-11-06 | 赵宗轩 | The electrode structure of capacitance touching control |
| CN108762578A (en) * | 2018-06-12 | 2018-11-06 | 信利光电股份有限公司 | A kind of metal grill touch screen and its preparation process |
| CN109375815A (en) * | 2018-11-16 | 2019-02-22 | 信利光电股份有限公司 | A kind of the melanism method and metal grill touch screen of metal grill touch screen |
| CN111651100A (en) * | 2020-06-10 | 2020-09-11 | 淄博松柏电子科技有限公司 | Touch screen structure of metal grid |
| CN111933329A (en) * | 2020-08-13 | 2020-11-13 | 江苏软讯科技有限公司 | Double-sided metal grid flexible conductive film and manufacturing method thereof |
| CN113093939A (en) * | 2021-03-31 | 2021-07-09 | 牧东光电科技有限公司 | Manufacturing method of anti-moire touch screen |
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| CN111651100A (en) * | 2020-06-10 | 2020-09-11 | 淄博松柏电子科技有限公司 | Touch screen structure of metal grid |
| CN111933329A (en) * | 2020-08-13 | 2020-11-13 | 江苏软讯科技有限公司 | Double-sided metal grid flexible conductive film and manufacturing method thereof |
| CN113093939A (en) * | 2021-03-31 | 2021-07-09 | 牧东光电科技有限公司 | Manufacturing method of anti-moire touch screen |
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| CN113467649A (en) * | 2021-07-19 | 2021-10-01 | 广东生益科技股份有限公司 | Metal grid capacitive touch sensor and preparation method and application thereof |
| CN113467649B (en) * | 2021-07-19 | 2024-05-24 | 广东生益科技股份有限公司 | Metal grid capacitive touch sensor and preparation method and application thereof |
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