CN103412662A - Touch panel and preparation method thereof - Google Patents

Abstract

The invention discloses a touch panel. The touch panel comprises transparent cover plate glass, transparent impressing glue, a conducting layer, insulating covering layers and transparent conductive ink layers, wherein the transparent impressing glue covers one surface of the transparent cover plate glass, and the conducting layer, the insulating covering layer and the transparent conductive ink layer are embedded in the transparent impressing glue. The conducting layer comprises X-axis conducting units and Y-axis conducting units, wherein the X-axis conducting units and the Y-axis conducting units are arranged in a staggered mode, the Y-axis conducting units are arranged continuously, and each X-axis conducting unit is partitioned through the Y-axis conducting units to form a plurality of electrode blocks. The transparent conductive ink layers are located at the intersections of the X-axis conducting units and the Y-axis conducting units in a silk-screen printing or ink-jet printing bridging mode, and every two adjacent electrode blocks are communicated to form the continuous X-axis conducting units. The insulating covering layers are arranged between the transparent conductive ink layers and the Y-axis conducting units. The touch panel is simple in process and high in qualified rate; besides, the etching process is not needed, and cost is reduced greatly. In addition, the invention further discloses a preparation method of the touch panel.

Description

Contact panel and preparation method thereof

Technical field

The present invention relates to the touch-control field, particularly relate to a kind of contact panel and preparation method thereof.

Background technology

Touch-screen is the inductive arrangement that can receive the input signals such as touch.Touch-screen has given information interaction brand-new looks, is extremely attractive brand-new information interaction equipment.The development of touch screen technology has caused the common concern of domestic and international information medium circle, has become the Chaoyang new high-tech industry that the photoelectricity industry is a dark horse.

At present, ITO(Indium Tin Oxide tin indium oxide) layer is vital ingredient in the contact panel of touch-screen.Although the develop rapidly at a tremendous pace of the manufacturing technology of touch panel.But the projecting type capacitor screen of take is example, too large change does not occur in the basic manufacturing process of ITO layer in recent years, always inevitably needs the ITO plated film, and ITO is graphical.

The integrated touch-control of tradition OGS(One Glass Solution) technology adopts at plating ITO on glass, after etching, obtains the conductive unit of required X, Y-direction, finally adopts ITO to put up a bridge.This traditional making needs expensive filming equipment, flow process is complicated and tediously long, therefore yield is controlled and just have been become the present stage field of touch screen manufacturing difficult problem that is difficult to avoid, and this production method also inevitably need to use etching technics, and a large amount of ITO materials can be wasted.

In addition, main flow OGS contact panel all adopts MoAlMo(molybdenum aluminium molybdenum at present) to put up a bridge, the metal wire that product appearance there will be metal to put up a bridge, affect product attractive in appearance.While adopting MoAlMo to put up a bridge, need accurate contraposition, and width, the length of putting up a bridge are very little, are easy to cause bad, the line yield is produced in impact, raises the cost.

Summary of the invention

Based on this, provide higher and lower-cost contact panel of a kind of yield and preparation method thereof.

A kind of contact panel, comprise transparent cover plate glass, cover a surface of described transparent cover plate glass transparent impression glue, be embedded at conductive layer, insulation coating and electrically conducting transparent ink layer in described transparent impression glue, described conductive layer comprises X-axis conductive unit and the Y-axis conductive unit of interlaced setting, described Y-axis conductive unit arranges continuously, and described X-axis conductive unit be take the Y-axis conductive unit and as interval, is divided into several electrode blocks; Described electrically conducting transparent ink layer silk-screen or inkjet printing etc. are put up a bridge at the infall of described X-axis conductive unit and described Y-axis conductive unit, every two adjacent electrode blocks are communicated with and form continuous X-axis conductive unit, and described insulation coating is arranged between described electrically conducting transparent ink layer and Y-axis conductive unit.

Therein in embodiment, described insulation coating is greater than described electrically conducting transparent ink layer at the width of each infall along Y direction at each infall along the width of Y direction, and described electrically conducting transparent ink layer is greater than described insulation coating at the width of each infall along X-direction at each infall along the width of X-direction.

In embodiment, described insulation coating is being covered on the Y-axis conductive unit across two X-axis conductive units on Y direction at least therein.

In embodiment, described insulation coating at least one end on X-direction covers the partial electrode piece therein.

Therein in embodiment, described X-axis conductive unit and Y-axis conductive unit include conductive grid, described conductive grid consists of the mesh lines of conduction, and the width of described mesh lines is 0.2 micron-5 microns, and the distance between adjacent two mesh lines is 50 microns-500 microns.

In embodiment, described transparent impression glue is formed with graphical groove away from a side of described transparent cover plate glass therein, and described mesh lines is contained in described groove.

In embodiment, the material of described mesh lines is metal, conducting polymer, Graphene, carbon nano-tube or ITO therein.

In embodiment, described mesh lines comprises a kind of metal in silver, copper, zinc, aluminium, nickel, gold at least therein.

Therein in embodiment, each end of described electrically conducting transparent ink layer at least across establish on X-direction or Y direction two described mesh lines or at least across establishing a grid.

Therein in embodiment, the material of described electrically conducting transparent ink layer is the electrically conducting transparent ink, the electrically conducting transparent ink comprises conductive material, solvent, crosslinking chemical and spreading agent, described conductive material is metal nanoparticle, metal nanometer line, the carbon nanocoils pipe, Graphene, at least a in organic conductive macromolecule and semiconducting compound quantum dot, described solvent is deionized water or organic molecule, described crosslinking chemical is boric acid, maleic anhydride, phthalate anhydride, at least a in succinic anhydride and glyoxal, described spreading agent is polyglycol, polyvinylpyrrolidone, at least a in polyacrylic acid and polyvinyl alcohol (PVA) etc., described each component of electrically conducting transparent ink weight ratio be: conductive material: 0.1-30 part, solvent: 60-90 part, crosslinking chemical: 0.1-5 part, spreading agent: 0.1-5 part, the above component sum is 100 parts.

Therein in embodiment, described electrically conducting transparent ink is ultraviolet hardening, also comprise light trigger and photosensitizer, described light trigger is at least a in aromatic diazo salt, aromatic sulfonium salts, fragrant salt compounded of iodine and ferrocene salt, described photosensitizer is radical initiator and light-sensitive coloring agent, described photosensitizer comprises dimethoxybenzoin, two propiophenones, anthracene, dibenzoyl peroxide etc., and the weight ratio of each component of ultraviolet hardening electrically conducting transparent ink is: conductive material: 0.1-30 part; Solvent: 60-90 part; Crosslinking chemical: 0.1-5 part; Spreading agent: 0.1-5 part; Light trigger: 0.1-0.5 part; Photosensitizer: 0.05-0.1 part; The above component sum is 100 parts.

In embodiment, the material of described transparent cover plate glass is sillico aluminate glass or calcium soda-lime glass therein, and its thickness is 0.3 millimeter-1.2 millimeters; Described insulation coating is the material with electrical insulation characteristics.

A kind of preparation method of contact panel, comprise the steps: the transparent impression glue of a surface-coated at transparent cover plate glass; By corresponding template, impress out the grid groove on described transparent impression glue; To filled conductive material in above-mentioned grid groove and be cured, form the conductive layer with X-axis conductive unit and Y-axis conductive unit; The Y-axis conductive unit covers the insulation coating on the surface of the infall with the X-axis conductive unit; Utilize the technology such as silk-screen, inkjet printing to form the electrically conducting transparent ink layer at described insulation clad surface, described electrically conducting transparent ink layer electrical communication X-axis conductive unit and do not lead unit with Y-axis and be communicated with.

Above-mentioned contact panel, thereby the electrically conducting transparent ink layer is communicated with electrode block in twos by bridgings such as silk-screen or inkjet printings forms continuous X-axis conductive unit, and the insulation coating is arranged between electrically conducting transparent ink layer and Y-axis conductive unit to prevent the electric connection of electrically conducting transparent ink layer and Y-axis guided missile unit, technique is simple, yield is higher, and do not need etch process, cost reduces greatly.In addition, also provide a kind of preparation method of contact panel, the method does not need etch process, and cost reduces greatly.

The accompanying drawing explanation

Fig. 1 is the schematic diagram of present embodiment contact panel;

Fig. 2 is the cut-open view in Fig. 1 picture frame zone;

Fig. 3 is the schematic diagram of the conduction region mesh lines of present embodiment contact panel;

Fig. 4 is the schematic diagram of other shapes of mesh lines;

Fig. 5 is the schematic diagram of the first mode of being connected with the electrically conducting transparent ink layer of mesh lines shown in Figure 3;

Fig. 6 is the schematic diagram of the second mode of being connected with the electrically conducting transparent ink layer of mesh lines shown in Figure 3;

Fig. 7 is the schematic diagram of the Third Way that is connected with the electrically conducting transparent ink layer of mesh lines shown in Figure 3;

Fig. 8 is the first insulation coating of present embodiment contact panel and the schematic diagram of electrically conducting transparent ink layer configuration relation;

Fig. 9 is the second insulation coating of present embodiment contact panel and the schematic diagram of electrically conducting transparent ink layer configuration relation;

Figure 10 is the third insulation coating of present embodiment contact panel and the schematic diagram of electrically conducting transparent ink layer configuration relation;

Figure 11 is the schematic diagram of the 4th kind of present embodiment contact panel insulation coating and electrically conducting transparent ink layer configuration relation;

Figure 12 a is the schematic diagram of present embodiment contact panel preparation method's the first step;

Figure 12 b is the schematic diagram of present embodiment contact panel preparation method's second step;

Figure 12 c is the schematic diagram of present embodiment contact panel preparation method's the 3rd step;

Figure 12 d is the schematic diagram of present embodiment contact panel preparation method's the 4th step;

Figure 12 e is the schematic diagram of present embodiment contact panel preparation method's the 5th step.

Embodiment

Please refer to the drawing 1 and Fig. 2, the present invention discloses a kind ofcontact panel 100, comprise transparentcover plate glass 110, cover a surface of transparentcover plate glass 110transparent impression glue 120, be embedded atconductive layer 130,insulation coating 140 and electrically conductingtransparent ink layer 150 in transparent impression glue 120.Conductive layer 130 comprises X-axisconductive unit 132 and the Y-axisconductive unit 134 of interlaced setting.Y-axisconductive unit 134 arranges continuously, and X-axisconductive unit 132 be take Y-axisconductive unit 134 and as interval, is divided into several electrode blocks 1321.Electrically conductingtransparent ink layer 150 silk-screens or inkjet printing etc. are put up a bridge at the infall of X-axisconductive unit 132 and Y-axisconductive unit 134, every two adjacent electrode blocks are communicated with and form continuous X-axisconductive unit 132, andinsulation coating 140 is arranged between electrically conductingtransparent ink layer 150 and Y-axis conductive unit 132.Thereby electrically conductingtransparent ink layer 150 is communicated withelectrode block 1322 in twos by bridgings such as silk-screen or inkjet printings forms continuous X-axisconductive unit 132, andinsulation coating 140 is arranged between electrically conductingtransparent ink layer 150 and Y-axisconductive unit 132 to prevent the electric connection of electrically conductingtransparent ink layer 150 and Y-axis guidedmissile unit 132, technique is simple, yield is higher, and do not need etch process, cost reduces greatly.

At length, Y-axisconductive unit 134 is to be embedded intransparent impression glue 120 distance transparent cover-plate glass that surface far away with the axial equi-spaced apart of Y-axis, and the zone definitions between adjacent Y-axisconductive unit 134 goes out the configuring area of X-axis conductive unit.X-axisconductive unit 132 has a plurality ofelectrode blocks 1322 that are embedded at configuring area.Adjacent twoelectrode blocks 1322 of an X-axisconductive unit 132 are realized electrically conducting by electrically conductingtransparent ink layer 150, and electrically conductingtransparent ink layer 150 is crossed oninsulation coating 140,insulation coating 140 covers on the Y-axisconductive unit 134 of infall, so electrically conductingtransparent ink layer 150 can be by the conducting of Y-axis conductive unit.

X-axisconductive unit 132 and Y-axisconductive unit 134 include conductive grid, and conductive grid consists of the mesh lines of conduction.Each conductive grid is regular polygon (as square, rhombus or card hexagon etc.) or irregular figure (please refer to the drawing 4).The width of mesh lines is 0.2 micron-5 microns, is preferably 0.5 micron-2 microns.Distance between adjacent two mesh lines is 50 microns-500 microns.The density of the mesh lines of X-axisconductive unit 132 and Y-axisconductive unit 134 and width can be identical, also can be different.Transparent impression glue 120 is formed with graphical groove away from a side of transparentcover plate glass 110, and mesh lines is contained in groove.The material of mesh lines is metal, conducting polymer, Graphene, carbon nano-tube or ITO.Wherein, when the material of mesh lines is metal, comprise at least a kind of metal in silver, copper, zinc, aluminium, nickel, gold.Preferred embodiment, mainly using the material of silver as mesh lines.For guaranteeing the electric conductivity of conductive unit, the thickness of mesh lines is 2 microns-8 microns, is preferably 2 microns-5 microns.

Please refer to the drawing 5 is to Fig. 7, for the electric conductivity after assurance electrically conductingtransparent ink layer 150 bridge joints, each end of electrically conductingtransparent ink layer 150 is at least across two mesh lines (as Fig. 5) of establishing X-direction, perhaps at least across two mesh lines (as Fig. 6) of establishing on Y direction, or at least across establishing a grid (as Fig. 7).

Can conducting Y-axisconductive unit 134 when guaranteeing electrically conductingtransparent ink layer 150 conducting X-axisconductive unit 132,insulation coating 140 is greater than electrically conductingtransparent ink layer 132 at the width of each infall along Y direction at each infall along the width of Y direction, and electrically conductingtransparent ink layer 150 is greater thaninsulation coating 140 at the width of each infall along X-direction at each infall along the width of X-direction.A kind of concrete mode please refer to the drawing 8, electrically conductingtransparent ink layer 150 is a andinsulation coating 140 at each infall along the width of Y direction is to follow between b at each infall along the width of Y direction: a<b;Insulation coating 140 is followed between the width x of X-direction at each infall along width y and the electrically conductingtransparent ink layer 150 of X-direction at each infall: y<x, with this, can guarantee that electrically conductingtransparent ink layer 150 is by the effective electrical communication of X-axisconductive unit 132, and can not be electrically connected with the Y-axis pilot unit.

Electrically conductingtransparent ink layer 150 can have multiple as Fig. 8 to Figure 12 with the configuration relation of insulation coating 140.The length that the first, electrically conductingtransparent ink layer 150 are overlapped on adjacent twoelectrode blocks 1322 is identical, ginseng Fig. 8.The second, electrically conductingtransparent ink layer 150 are overlapped on the length difference on adjacent twoelectrode blocks 1322, and the length that an end is overlapped onelectrode block 1322 is long, and it is shorter that the other end is overlapped on the length ofmotor piece 1322, ginseng Fig. 9.The third,insulation coating 140 is being covered on Y-axisconductive unit 134 across two X-axis conductive units on Y direction at least, that is to say that same Y-axisconductive unit 134 shares aninsulation coating 140, ginseng Figure 10 at least two adjacent infalls.The 4th kind,insulation coating 140 at least one end on X-direction covers the partial electrode piece; In the mode of ginseng Figure 11,insulation coating 140 two ends on X-direction all coverpartial electrode piece 1322; Certainly in other modes, also can not cover electrode fast 1322.Certainly, can also be the combination of above-mentioned several modes.Thus, when the bridging of the X-axisconductive unit 132 be interrupted when conducting is electrically conductingtransparent ink layer 150, can be also by putting up a bridge electrically conductingtransparent ink layer 150 relatively do wider, relatively easy when prepared by reality, thus more easily realize volume production.

The material of transparentcover plate glass 110 is sillico aluminate glass or calcium soda-lime glass, and its thickness is 0.3 millimeter-1.2 millimeters, is preferably 0.5 millimeter-0.7 millimeter.The material oftransparent impression glue 120 is for being the curing glue of UV, and in an embodiment, thistransparent impression glue 120 is solvent-free ultra-violet curing acrylic resin therein.In other embodiments, this UV solidifies glue can also be other composition, but generally comprises prepolymer, monomer, light trigger and auxiliary agent, and each component mole proportioning is: 30～50%:40～60%:1～6%:0.2～1%.Wherein, prepolymer is selected from: epoxy acrylate, urethane acrylate, polyether acrylate, polyester acrylate and acryl resin etc.; Monomer is selected from: simple function, two senses and trifunctional and multifunctional; Initiating agent is selected from: benzophenone, benzyl phenyl ketone etc.; Auxiliary agent can add and can not add, and generally as bonding agent, uses, and usual auxiliaries comprises: p-dihydroxy-benzene, p methoxy phenol, 1,4-benzoquinone and 2,6 one di-t-butyl cresols etc.The thickness oftransparent impression glue 120, for being 1 micron-10 microns, is preferably 2 microns-5 microns.The choosing ofinsulation coating 140 has the material of electrical insulation characteristics, and transparent insulating material preferably, can be silicon dioxide, macromolecule resin etc., thereby avoid electrically conducting between X axis conductive unit and Y-axis conductive unit.

The material of electrically conductingtransparent ink layer 150 is the electrically conducting transparent ink, and the electrically conducting transparent ink comprises conductive material, solvent, crosslinking chemical and spreading agent.Conductive material is at least a in metal nanoparticle, metal nanometer line, carbon nanocoils pipe, Graphene, organic conductive macromolecule and semiconducting compound quantum dot.Solvent is deionized water or organic molecule.Crosslinking chemical is at least a in boric acid, maleic anhydride, phthalate anhydride, succinic anhydride and glyoxal.Spreading agent is at least a in polyglycol, polyvinylpyrrolidone, polyacrylic acid and polyvinyl alcohol (PVA) etc.Each component of electrically conducting transparent ink weight ratio be:

Conductive material: 0.1-30 part;

Solvent: 60-90 part;

Crosslinking chemical: 0.1-5 part;

Spreading agent: 0.1-5 part;

The above component sum is 100 parts.

If being ultraviolet hardening, the electrically conducting transparent ink also comprises light trigger and photosensitizer.Light trigger is at least a in aromatic diazo salt, aromatic sulfonium salts, fragrant salt compounded of iodine and ferrocene salt.Photosensitizer is radical initiator and light-sensitive coloring agent, and photosensitizer comprises dimethoxybenzoin, two propiophenones, anthracene, dibenzoyl peroxide etc., and the weight ratio of each component of ultraviolet hardening electrically conducting transparent ink is:

Conductive material: 0.1-30 part;

Solvent: 60-90 part;

Crosslinking chemical: 0.1-5 part;

Spreading agent: 0.1-5 part;

Light trigger: 0.1-0.5 part;

Photosensitizer: 0.05-0.1 part;

The above component sum is 100 parts.

Contact panel 100 utilizes electrically conductingtransparent ink layer 150 as the bridging wire, can adopt the plain modes such as silk-screen, inkjet printing to carry out operation, MoAlMo or ITO with respect to current employing put up a bridge, technique is simple, do not need the expensive device such as sputter, evaporation, yield is high, is applicable to large tracts of land, production in enormous quantities.And in production run, do not need to use etching technics, can not cause the waste of conductive, material cost reduces greatly.And the bridging structure adopts the electrically conducting transparent ink layer to connect, can solve main flow OGS touch screen at present and adopt MoAlMo to put up a bridge and the problem of bridging metal wire appears in the product appearance that causes.In addition, the bridging structure adopts electrically conductingtransparent ink layer 150 to connect, and that the part of putting up a bridge can be done is relatively wide, larger, thereby is convenient to operation, is conducive to improve yield.

In addition, please refer to the drawing 12a-Figure 12 e, present embodiment also provides a kind of preparation method ofcontact panel 100, comprises the steps:

Step 1: the transparent impression glue of a surface-coated 120(at transparentcover plate glass 110 joins Figure 12 a);

Preferably, transparentcover plate glass 110 is the silico-aluminate tempered glass of 0.7 millimeters thick, transparent impression glue be 5 micron thick without the transparent impression glue of shadow.

Step 2: impress out grid groove 122(ginseng Figure 12 b by corresponding template on transparent impression glue 120);

Step 3: to the interior filled conductive material ofgrid groove 120 and be cured, form the conductive layer 130(ginseng Figure 12 c with X-axisconductive unit 132 and Y-axis conductive unit 134);

Step 4: Y-axisconductive unit 134 covers insulation coating 140(ginseng Figure 12 d on the surface of the infall with X-axis conductive unit 132);

Step 5: utilize the technology such as silk-screen, inkjet printing to form electrically conductingtransparent ink layer 150 oninsulation coating 140 surface, electrically conductingtransparent ink layer 150 electrical communication X-axis conductive units and do not lead unit with Y-axis and is communicated with (joining Figure 12 d).

Adopt the method to preparecontact panel 100, the electrically conducting transparent ink layer adopts the plain modes such as silk-screen, inkjet printing to carry out operation, with respect to MoAlMo or the ITO bridging of current employing, technique is simple, do not need the expensive device such as sputter, evaporation, yield is high, is applicable to large tracts of land, production in enormous quantities.

The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.

Claims (15)

1. contact panel, it is characterized in that, comprise transparent cover plate glass, cover a surface of described transparent cover plate glass transparent impression glue, be embedded at conductive layer, insulation coating and electrically conducting transparent ink layer in described transparent impression glue, described conductive layer comprises X-axis conductive unit and the Y-axis conductive unit of interlaced setting, described Y-axis conductive unit arranges continuously, and described X-axis conductive unit be take the Y-axis conductive unit and as interval, is divided into several electrode blocks; Described electrically conducting transparent ink layer silk-screen or inkjet printing etc. are put up a bridge at the infall of described X-axis conductive unit and described Y-axis conductive unit, every two adjacent electrode blocks are communicated with and form continuous X-axis conductive unit, and described insulation coating is arranged between described electrically conducting transparent ink layer and Y-axis conductive unit.

2. contact panel according to claim 1, it is characterized in that, described insulation coating is greater than described electrically conducting transparent ink layer at the width of each infall along Y direction at each infall along the width of Y direction, and described electrically conducting transparent ink layer is greater than described insulation coating at the width of each infall along X-direction at each infall along the width of X-direction.

3. contact panel according to claim 2, is characterized in that, the length that described electrically conducting transparent ink layer is overlapped on adjacent two electrode blocks is identical, or described electrically conducting transparent ink layer is overlapped on the length difference on adjacent two electrode blocks.

4. according to the described contact panel of claim 2 or 3, it is characterized in that, described insulation coating is being covered on the Y-axis conductive unit across two X-axis conductive units on Y direction at least.

5. according to the described contact panel of claim 2 or 3, it is characterized in that, described insulation coating at least one end on X-direction covers the partial electrode piece.

6. contact panel according to claim 4, is characterized in that, described insulation coating at least one end on X-direction covers the partial electrode piece.

7. contact panel according to claim 1, it is characterized in that, described X-axis conductive unit and Y-axis conductive unit include conductive grid, described conductive grid consists of the mesh lines of conduction, the width of described mesh lines is 0.2 micron-5 microns, and the distance between adjacent two mesh lines is 50 microns-500 microns.

8. contact panel according to claim 7, is characterized in that, described transparent impression glue is formed with graphical groove away from a side of described transparent cover plate glass, and described mesh lines is contained in described groove.

9. contact panel according to claim 7, is characterized in that, the material of described mesh lines is metal, conducting polymer, Graphene, carbon nano-tube or ITO.

10. contact panel according to claim 7, is characterized in that, described mesh lines comprises a kind of metal in silver, copper, zinc, aluminium, nickel, gold at least.

11. contact panel according to claim 4, is characterized in that, each end of described electrically conducting transparent ink layer at least across establish on X-direction or Y direction two described mesh lines or at least across establishing a grid.

12. contact panel according to claim 1, it is characterized in that, the material of described electrically conducting transparent ink layer is the electrically conducting transparent ink, the electrically conducting transparent ink comprises conductive material, solvent, crosslinking chemical and spreading agent, described conductive material is metal nanoparticle, metal nanometer line, the carbon nanocoils pipe, Graphene, at least a in organic conductive macromolecule and semiconducting compound quantum dot, described solvent is deionized water or organic molecule, described crosslinking chemical is boric acid, maleic anhydride, phthalate anhydride, at least a in succinic anhydride and glyoxal, described spreading agent is polyglycol, polyvinylpyrrolidone, at least a in polyacrylic acid and polyvinyl alcohol (PVA) etc., described each component of electrically conducting transparent ink weight ratio be:

Conductive material: 0.1-30 part;

Solvent: 60-90 part;

Crosslinking chemical: 0.1-5 part;

Spreading agent: 0.1-5 part;

The above component sum is 100 parts.

13. contact panel according to claim 12, it is characterized in that, described electrically conducting transparent ink is ultraviolet hardening, also comprise light trigger and photosensitizer, described light trigger is at least a in aromatic diazo salt, aromatic sulfonium salts, fragrant salt compounded of iodine and ferrocene salt, described photosensitizer is radical initiator and light-sensitive coloring agent, described photosensitizer comprises dimethoxybenzoin, two propiophenones, anthracene, dibenzoyl peroxide etc., and the weight ratio of each component of ultraviolet hardening electrically conducting transparent ink is:

Conductive material: 0.1-30 part;

Solvent: 60-90 part;

Crosslinking chemical: 0.1-5 part;

Spreading agent: 0.1-5 part;

Light trigger: 0.1-0.5 part;

Photosensitizer: 0.05-0.1 part;

The above component sum is 100 parts.

14. contact panel according to claim 1, is characterized in that, the material of described transparent cover plate glass is sillico aluminate glass or calcium soda-lime glass, and its thickness is 0.3 millimeter-1.2 millimeters; Described insulation coating is the material with electrical insulation characteristics.

15. the preparation method of a contact panel, is characterized in that, comprises the steps:

The transparent impression glue of a surface-coated at transparent cover plate glass;

By corresponding template, impress out the grid groove on described transparent impression glue;

To filled conductive material in above-mentioned grid groove and be cured, form the conductive layer with X-axis conductive unit and Y-axis conductive unit;

The Y-axis conductive unit covers the insulation coating on the surface of the infall with the X-axis conductive unit;

Utilize the technology such as silk-screen, inkjet printing to form the electrically conducting transparent ink layer at described insulation clad surface, described electrically conducting transparent ink layer electrical communication X-axis conductive unit and do not lead unit with Y-axis and be communicated with.

Images