Utility model content
Based on this, be necessary intelligent wearable device and touch-screen that a kind of Rimless is provided.
A kind of touch-screen, comprise: nesa coating, the conductive layer that described nesa coating comprises transparent photosensitive resin layer and is cross-linked to form by electrical-conductive nanometer filamentary silver line, described transparent photosensitive resin layer has relative first surface and second surface, described electrical-conductive nanometer filamentary silver line embeds described first surface, wherein, described conductive layer forms transparent electrode pattern and transparent lead-in wire, described transparent electrode pattern is for obtaining the coordinate information of touch point, described transparent lead-in wire is electrically connected with described transparent electrode pattern, coordinate information for being obtained by described transparent electrode pattern transfers in the chip of the control circuit of touch-screen.
Wherein in an embodiment, described touch-screen is the touch-screen of the support multiple spot of mutual capacitance type.
Wherein in an embodiment, the number of described nesa coating is one deck, described transparent electrode pattern comprises the first touch control electrode and the second touch control electrode, described first touch control electrode and described second touch control electrode are respectively used to obtain the information of X-axis coordinate and the information of Y-axis coordinate, the number of described first touch control electrode and the number of described second touch control electrode and identical with the number of described transparent lead-in wire, each transparent lead-in wire is electrically connected with one first touch control electrode or one second touch control electrode;
Or, the number of described nesa coating is two-layer, first nesa coating and the second nesa coating respectively, described first nesa coating and the stacked setting of described second nesa coating, and described transparent photosensitive resin layer and described conductive layer intersecting, wherein, the transparent electrode pattern of described first nesa coating comprises the first touch control electrode, the transparent lead-in wire of described first nesa coating is the first transparent lead-in wire, the number of described first transparent lead-in wire is identical with the number of described first touch control electrode, each first transparent lead-in wire is electrically connected with one first touch control electrode, the transparent electrode pattern of described second nesa coating comprises the second touch control electrode, the transparent lead-in wire of described second nesa coating is the second transparent lead-in wire, the number of described second transparent lead-in wire is identical with the number of described second touch control electrode, each second transparent lead-in wire is electrically connected with one second touch control electrode, described first touch control electrode and described second touch control electrode are respectively used to obtain the information of X-axis coordinate and the information of Y-axis coordinate.
Wherein in an embodiment, described touch-screen is the touch-screen of the support single-point of self-capacitance.
Wherein in an embodiment, the number of described nesa coating is one deck, described transparent electrode pattern only includes the first touch control electrode of multiple mutually insulated, each the first touch control electrode comprises the sub-electrode of multiple mutually insulated, the number of described transparent lead-in wire is identical with the number of described sub-electrode, and each transparent lead-in wire is electrically connected with a sub-electrode in the first touch control electrode of each described multiple mutually insulated.
Wherein in an embodiment, the size of described touch-screen is less than or equal to 3 inches.
Wherein in an embodiment, described touch-screen also comprises the metal level be located on described first surface;
Part described electrical-conductive nanometer filamentary silver line exposes described first surface, described metal level comprises the metal pins of multiple mutually insulated, to be connected with the flexible PCB of touch-screen, one end that described transparent lead-in wire is connected with described transparent electrode pattern is first end, the other end is the second end, and each transparent lead-in wire is connected with a metal pins.
Wherein in an embodiment, described nesa coating also comprises transparent base, and the second surface of described transparent photosensitive resin layer is located on described transparent base.
Wherein in an embodiment, described touch-screen also comprises cover sheet, and described cover sheet has relative touch-surface and load-bearing surface, and described nesa coating is located on described load-bearing surface, and the skin hardness of described touch-surface is more than or equal to 3H.
Wherein in an embodiment, described cover sheet is bent cover plate.
Wherein in an embodiment, described cover sheet comprises plastic rubber substrate and is located at the hardening coat on described plastic rubber substrate surface, the surface of described hardening coat described plastic rubber substrate is dorsad described touch-surface, the surface of described plastic rubber substrate described hardening coat is dorsad described load-bearing surface, wherein, the thickness of described plastic rubber substrate is 0.1 ~ 0.3mm, and the thickness of described hardening coat is less than 0.05mm;
Or described cover sheet is the plastic rubber substrate of a surface through cure process, described plastic rubber substrate is described touch-surface through the surface of cure process, and another surface is described load-bearing surface, and wherein, the thickness of described plastic rubber substrate is 0.1 ~ 0.3mm.
A method for making for above-mentioned touch-screen, comprises the steps:
Pending film is provided, the conductive layer that described pending film comprises hypothallus and formed by electrical-conductive nanometer filamentary silver line, described hypothallus has relative connecting surface and finished surface, described electrical-conductive nanometer filamentary silver line embeds described finished surface, wherein, described hypothallus is the transparent photosensitive resin layer of semi-solid preparation;
Light shield is provided, described light shield is preset with pattern area, the pattern that the transparent electrode pattern of described nesa coating and transparent lead-in wire are formed is standard pattern, pattern in described pattern area is identical with described standard pattern or complementary, described light shield is placed in the side that described pending film has described conductive layer, and carry out successively exposing and development treatment, obtain the intermediate product with transparent electrode pattern and transparent lead-in wire; And
Process is cured to described intermediate product.
A method for making for above-mentioned touch-screen, comprises the steps:
Pending film and cover sheet are provided, the conductive layer that described pending film comprises hypothallus and formed by electrical-conductive nanometer filamentary silver line, described hypothallus has relative connecting surface and finished surface, described electrical-conductive nanometer filamentary silver line embeds described finished surface, wherein, described hypothallus is the transparent photosensitive resin layer of semi-solid preparation, be located on described cover sheet by described pending film, and described connecting surface is near described cover sheet;
Light shield is provided, described light shield is preset with pattern area, the pattern that the transparent electrode pattern of described nesa coating and transparent lead-in wire are formed is standard pattern, pattern in described pattern area is identical with described standard pattern or complementary, described light shield is placed in the side that described pending film has described conductive layer, and carry out successively exposing and development treatment, obtain the intermediate product with transparent electrode pattern and transparent lead-in wire; And
Be cured process, described hypothallus is solidified.
Wherein in an embodiment, described cover sheet is flexible parent metal, and the size of described cover sheet and described pending film is all many times of the size of a touch-screen, and described light shield has multiple pattern area;
After obtaining described intermediate product, and before being cured process, also comprise and adopt the mode of laser to carry out the step cutting to obtain multiple touch-screen;
Or, after being cured process, also comprising and adopt the mode of laser to carry out the step cutting to obtain multiple touch-screen.
A kind of intelligent wearable device, comprises above-mentioned touch-screen.
Above-mentioned nesa coating adopts electrical-conductive nanometer filamentary silver line to realize conduction, and electrical-conductive nanometer filamentary silver line has relatively low resistance relative to traditional conductive layer, therefore electrical-conductive nanometer filamentary silver line both may be used for forming transparent electrode pattern, may be used for again forming transparent lead-in wire.Because transparent lead-in wire itself has the transparency, therefore not needing to make light shield layer in the both sides at the cover sheet back side, is also above-mentioned touch-screen Rimless.And electrical-conductive nanometer filamentary silver line embeds first surface, thus make above-mentioned nesa coating can avoid preferably scratching, be not easy to damage.Greatly reduce the chance that nesa coating contacts with air simultaneously, above-mentioned nesa coating is not easy oxidized.
Embodiment
Below in conjunction with drawings and the specific embodiments, intelligent wearable device and touch-screen are described further.
As shown in Figures 1 and 2, the touch-screen 10 of an embodiment comprises cover sheet 100 and nesa coating 200.
Cover sheet 100 has relative touch-surface 110 and load-bearing surface 120.Wherein, the skin hardness of touch-surface 110 is more than or equal to 3H (3H is pencil hardness grade), thus effectively can avoid scratch.
Traditional cover sheet is generally tempered glass, because tempered glass is rigid, can not bend, and therefore cannot meet the wearable devices such as such as intelligent watch on the horizon to the demand of flexible touch screen.In the present embodiment, cover sheet 100 is bent cover plate.
Further; in the present embodiment; as shown in Figure 3; cover sheet 100 comprises plastic rubber substrate 130 and is located at the hardening coat 140 on plastic rubber substrate 130 surface; the surface of hardening coat 140 plastic rubber substrate 130 is dorsad touch-surface 110, and the surface of plastic rubber substrate 130 hardening coat 140 is dorsad load-bearing surface 120.Wherein, the thickness of plastic rubber substrate 130 is 0.1 ~ 0.3mm, and the thickness of hardening coat 140 is less than 0.05mm.Concrete, plastic rubber substrate 130 is PET (polyethylene terephthalate, polyethylene terephthalate) film material, PC (Polycarbonate, polycarbonate) one or more compounds in film material and PMMA (PolymethylMethacrylate, polymethylmethacrylate) film material.Hardening coat 140 be frp layer, silicon dioxide layer or carbon fiber with glass fibre mix staple fibre.
In other embodiments, cover sheet 100 can be the plastic rubber substrate of a surface through cure process, and plastic rubber substrate is touch-surface 110 through the surface of cure process, and another surface is load-bearing surface 120.Wherein, the thickness of cover sheet 100 is 0.1 ~ 0.3mm.Concrete, plastic rubber substrate can be one or more compounds in PET film material, PC film material and PMMA film material.
Further, in the present embodiment, the transmitance of cover sheet 100 is more than or equal to 90%, and haze value is less than or equal to 1%.Concrete, in the present embodiment, the thickness of cover sheet 100 is 0.1mm, transmitance is greater than 91%, and haze value is less than 0.55%.
As shown in Figures 2 and 4, nesa coating 200 is located on load-bearing surface 120.The conductive layer 220 that nesa coating 200 comprises transparent photosensitive resin layer 210 and is cross-linked to form by electrical-conductive nanometer filamentary silver line 222.Transparent photosensitive resin layer 210 has relative first surface 212 and second surface 214, and electrical-conductive nanometer filamentary silver line 222 embeds first surface 212.Wherein, conductive layer 220 forms transparent electrode pattern 230 and transparent lead-in wire 240, transparent electrode pattern 230 is for obtaining the coordinate information of touch point, transparent lead-in wire 240 is electrically connected with transparent electrode pattern 230, and the coordinate information for being obtained by transparent electrode pattern 230 transfers in the chip of the control circuit of touch-screen 10.
In the process making traditional touch-screen, usually pattern process is carried out to ITO conductive layer and obtain transparent electrode pattern, but the resistance of ITO is higher, cannot directly as the lead-in wire of touch-screen, therefore usually need to make corresponding metal lead wire (being generally silver slurry line) at the axial end points place of transparent electrode pattern to overlap with transparent electrode pattern, by metal lead wire the coordinate information of touch point transferred in the chip in control circuit.And metal lead wire does not have the transparency usually, therefore need to make in cover sheet 100 back side (load-bearing surface 120) surrounding that there is certain thickness opaque light shield layer, block the metal lead wire below cover sheet 100.And the area of touch-screen visible area is reduced just because of the frame that the light shield layer of both sides is formed.
And above-mentioned nesa coating 200 adopts electrical-conductive nanometer filamentary silver line 222 to realize conduction, and electrical-conductive nanometer filamentary silver line 222 has relatively low resistance relative to traditional ITO conductive layer, therefore electrical-conductive nanometer filamentary silver line 222 both may be used for forming transparent electrode pattern 230, may be used for again forming transparent lead-in wire 240.Because transparent lead-in wire 240 itself has the transparency, therefore not needing to make light shield layer in the both sides at cover sheet 100 back side, is also above-mentioned touch-screen 10 Rimless.And electrical-conductive nanometer filamentary silver line 222 embeds first surface 212, thus make above-mentioned nesa coating 200 can avoid preferably scratching, be not easy to damage.Greatly reduce the chance that nesa coating 200 contacts with air simultaneously, make above-mentioned nesa coating 200 be not easy oxidized.
Because ITO enbrittles, can not bend, and electrical-conductive nanometer filamentary silver line 222 has good pliability, can bend.And transparent photosensitive resin layer 210 also has pliability, can bend, also namely above-mentioned nesa coating 200 has pliability.When cover sheet 100 is bent cover plate, above-mentioned touch-screen 10 has flexibility, can meet the wearable devices such as such as intelligent watch on the horizon to the demand of flexible touch screen.
Further, in the present embodiment, the length of electrical-conductive nanometer filamentary silver line 222 is 30 ~ 50 μm, and the diameter of electrical-conductive nanometer filamentary silver line 222 is 30 ~ 50nm.
In the present embodiment, nesa coating 200 is directly formed on cover sheet 100, and the second surface 214 of transparent photosensitive resin layer 210 is connected with load-bearing surface 120.Be appreciated that in other embodiments, as shown in Figure 5, nesa coating 200 also comprises transparent base 250.The second surface 214 of transparent photosensitive resin layer 210 is located on transparent base 250.Nesa coating 200 is connected with the load-bearing surface 120 of cover sheet 100 by optical cement layer (OracleCertified Associate, OCA) 300.In the present embodiment, the first surface 212 of transparent photosensitive resin layer 210 is near load-bearing surface 120.In other embodiments, also can be that the surface of transparent base 250 away from transparent photosensitive resin layer 210 is near load-bearing surface 120.
In the present embodiment, the size of touch-screen 10 is less than or equal to 3 inches, and the finger that this undersized touch-screen is not too applicable to people carries out more complicated operation in the above.For this reason, present embodiment provides a kind of touch-screen of support single-point of self-tolerant.In actual applications, touch-screen 10 can also arrange gesture operation, thus makes touch-screen 10 can have similar operating function to the touch-screen of the support multiple spot of mutual capacitance type.
Concrete, as shown in Figure 6, above-mentioned touch-screen 10 only includes layer of transparent conducting film 200.Transparent electrode pattern 230 only includes the first touch control electrode 232 of multiple mutually insulated.Each the first touch control electrode 232 comprises the sub-electrode 2322 of multiple mutually insulated.The number of transparent lead-in wire 240 is identical with the number of sub-electrode 2322, and each transparent lead-in wire 240 is electrically connected with a sub-electrode 2322.Further, in the present embodiment, the number of the first touch control electrode 232 is two, and each first touch control electrode 232 comprises 8 sub-electrodes 2322.
Be appreciated that in other embodiments, touch-screen 10 also can be the touch-screen of the support multiple spot of mutual capacitance type.
Concrete, touch-screen only includes layer of transparent conducting film 200.Transparent electrode pattern 230 comprises the first touch control electrode and the second touch control electrode.First touch control electrode and the second touch control electrode are respectively used to obtain the information of X-axis coordinate and the information of Y-axis coordinate.The number of the first touch control electrode and the number of the second touch control electrode and identical with the number of transparent lead-in wire 240, each transparent lead-in wire 240 is electrically connected with one first touch control electrode or one second touch control electrode.
Or touch-screen comprises two-layer nesa coating 200, the first nesa coating and the second nesa coating respectively.First nesa coating and the stacked setting of the second nesa coating, and transparent photosensitive resin layer 210 and conductive layer 220 intersecting.Wherein, the transparent electrode pattern 230 of the first nesa coating comprises the first touch control electrode, and the transparent lead-in wire of the first nesa coating is the first transparent lead-in wire.The number of the first transparent lead-in wire is identical with the number of the first touch control electrode, and each first transparent lead-in wire is electrically connected with one first touch control electrode.The transparent electrode pattern 230 of the second nesa coating comprises the second touch control electrode, and the transparent lead-in wire of the second nesa coating is the second transparent lead-in wire.The number of the second transparent lead-in wire is identical with the number of the second touch control electrode, and each second transparent lead-in wire is electrically connected with one second touch control electrode.First touch control electrode and the second touch control electrode are respectively used to obtain the information of X-axis coordinate and the information of Y-axis coordinate.
Further, as shown in Fig. 6 and Figure 13, in the present embodiment, touch-screen 10 also comprises and is located at metal level 400 on first surface 212.Partially conductive nano silver coated suture line 222 exposes first surface 212.
Wherein, metal level 400 comprises the metal pins 410 of multiple mutually insulated, to be connected with the flexible PCB of touch-screen.One end that transparent lead-in wire 240 is connected with transparent electrode pattern 230 is first end 242, and the other end is the second end 244.Each transparent lead-in wire 240 is connected with a metal pins.Because partially conductive nano silver coated suture line 222 exposes first surface 212, thus transparent lead-in wire 240 can be electrically connected with metal level 400, to be transferred to by coordinate information in the chip of the control circuit of touch-screen.
Present embodiment also provides a kind of method for making of touch-screen, comprises the steps:
Step S510, provides pending film and cover sheet.As shown in Figure 7, pending film 600 comprise body 610 and two diaphragm 620, two diaphragms 620 be located at respectively body 610 relative two on the surface.The conductive layer 640 that body 610 comprises hypothallus 630 and formed by electrical-conductive nanometer filamentary silver line 642.Hypothallus 630 has relative connecting surface 632 and finished surface 634, electrical-conductive nanometer filamentary silver line 642 embeds finished surface 634, wherein, the region that hypothallus 630 is embedded in electrical-conductive nanometer filamentary silver line 642 is conduction region 650, and the region not being embedded with electrical-conductive nanometer filamentary silver line 642 is nonconductive regions 660.Hypothallus 630 is the transparent photosensitive resin layer of semi-solid preparation.After removing two diaphragms 620, body 610 is located on cover sheet 100, and connecting surface 632 is near cover sheet.
As shown in Figure 8, in the present embodiment, partially conductive nano silver coated suture line 642 exposes finished surface 634.
In the present embodiment, be located on cover sheet 100 by the mode of roller hot pressing by body 610, wherein, roller 700 at the uniform velocity moves along certain orientation.Nonconductive regions 660 is equivalent to tack coat and is connected on cover sheet 100 conduction region 650.
Wherein, the transparent feel photopolymer resin of semi-solid preparation comprises each component of following parts by weight: 60 ~ 80 parts of film-forming resins, 1 ~ 10 part of emulsion, 5 ~ 20 parts of solvents, 0.1 ~ 5 part of stabilizing agent, 0.1 ~ 5 part of levelling agent, 0.1 ~ 5 part of defoamer, the number sum of each component is 100.
The transparent feel photopolymer resin of solidification comprises each component of following parts by weight: 30 ~ 50 parts of film-forming resins, 1 ~ 10 part of emulsion, 0.1 ~ 5 part of stabilizing agent, 0.1 ~ 5 part of levelling agent and 0.1 ~ 5 part of defoamer.
Film-forming resin is at least one in polymethylmethacrylate, linear phenolic resin, epoxy resin, crotonic acid, acrylate, vinyl ether and M Cr.Emulsion is at least one in diazobenzene quinone, diazo naphthoquinone ester, polyvinyl cinnamate, poly-Chinese cassia tree fork malonic acid glycol ester polyester, aromatic diazo salt, aromatic sulfonium salts, aromatic iodonium salt and ferrocene salt.Solvent is tetrahydrofuran, methyl ethyl ketone, cyclohexanone, propylene glycol, N, at least one in dinethylformamide, ethyl cellosolve acetate, ethyl acetate and butyl acetate, toluene, dimethylbenzene, tripropylene glycol diacrylate, trimethylolpropane triacrylate, ethoxylated trimethylolpropane triacrylate, dipentaerythrite six acrylate, 1,6-hexanediol methoxyl mono acrylic ester and ethoxylation neopentyl glycol methoxyl mono acrylic ester.Stabilizing agent is p-dihydroxy-benzene, p methoxy phenol, 1,4-benzoquinone, 2, at least one in 6 one di-t-butyl cresols, phenothiazine and anthraquinone.Levelling agent is at least one in polyacrylate, acetate butyrate fiber, nitrocellulose and polyvinyl butyral.Defoamer is phosphate, fatty acid ester and organosilyl at least one.
Wherein, the semi-cured state of transparent feel photopolymer resin has photosensitive property, and the solidification shape body of transparent feel photopolymer resin does not have photosensitive property.
Step S520, provides light shield.As shown in Figure 9, light shield 800 is preset with pattern area 810, and the pattern that the transparent electrode pattern of nesa coating and transparent lead-in wire are formed is standard pattern, and the pattern in pattern area 810 is identical with standard pattern or complementary.Light shield 800 is placed in the side that body 610 has conductive layer (conduction region 650), and carries out successively exposing and development treatment, obtain the intermediate product with transparent electrode pattern and transparent lead-in wire.
In the present embodiment, the transparent feel photopolymer resin forming body 610 is negative photosensitive resin, and namely illumination place is insoluble to developer solution.Because illumination place is insoluble to developer solution, if want retention criteria pattern, the light shield 800 with the pattern area identical with standard pattern should be adopted.Fig. 9 is exposure process, and adopt UV-irradiation light shield 800 away from the side of body 610, wherein, the part that conduction region 650 is irradiated by light is area of illumination 652, and the part be not irradiated by light is non-area of illumination 654.Figure 10 is developing process, and non-area of illumination 654 is removed.
Be appreciated that in other embodiments, the transparent feel photopolymer resin forming pending film 600 can be also positive type photosensitive, and namely illumination place is dissolved in developer solution.Because illumination place is dissolved in developer solution, if want retention criteria pattern, the light shield 800 had with the pattern area of standard pattern complementation should be adopted.
Step S530, is cured process to intermediate product.
In the present embodiment, the mode of ultraviolet lighting is adopted to be cured process.If Figure 11 is solidification processing procedure.
Further, as shown in figure 12, in the present embodiment, cover sheet 100 is flexible parent metal, and cover sheet 100 and the size of body 610 are all many times of the size of a touch-screen 10.In the present embodiment, the size of cover sheet 100 is greater than the size of body 610.Light shield 800 has multiple pattern area 810.After obtaining intermediate product, and before being cured process, also comprise and adopt the mode of laser to carry out the step cutting to obtain multiple touch-screen.Or, after being cured process, also comprising and adopt the mode of laser to carry out the step cutting to obtain multiple touch-screen.
The cover sheet of traditional touch-screen is tempered glass, and tempered glass needs through multiple tracks intensive treatment, and the corner of tempered glass needs polishing and cutting, and on tempered glass, forms hole (sound transmission aperture) need professional tool.Therefore, adopt tempered glass to be suitable only for one-step operation as the touch-screen of cover sheet, also namely once can only process a touch-screen, not can manufacture.
And in the present embodiment, cover sheet 100 is flexible parent metal, the mode of laser can be adopted directly to form predetermined profile and/or hole etc.Also namely in the present embodiment, can directly by large cover sheet once property make multiple independently nesa coating, form multiple independently touch-screen finally by laser.
In other embodiments; when nesa coating 200 also comprises transparent base 250; and transparent base 250 is when being also flexible parent metal; also can directly on large transparent base once property make multiple independently small-sized touch control unit; and then adopt optical cement to fit with a large cover sheet; finally by laser, transparent base 250 and cover sheet are all cut into fritter, thus form multiple independently touch-screen.
Employing flexible parent metal relative to adopting tempered glass as cover sheet as cover sheet, greatly can simplify the manufacturing process of touch-screen, provide make efficiency.
In the present embodiment, also above-mentioned touch-screen 10 is applied in intelligent wearable device.Nesa coating 200 shown in Figure 13 is intelligent watch nesa coating 200.Nesa coating 200 in Figure 13 is the embody rule of the nesa coating 200 in Fig. 6.
The above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.