CN113650373B - Touch layer, preparation method thereof and touch device - Google Patents
Touch layer, preparation method thereof and touch device Download PDFInfo
- Publication number
- CN113650373B CN113650373B CN202010397923.0A CN202010397923A CN113650373B CN 113650373 B CN113650373 B CN 113650373B CN 202010397923 A CN202010397923 A CN 202010397923A CN 113650373 B CN113650373 B CN 113650373B
- Authority
- CN
- China
- Prior art keywords
- layer
- nanowire
- touch
- light
- substrate layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/02—Layer formed of wires, e.g. mesh
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
- B32B15/09—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/02—Coating on the layer surface on fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/103—Metal fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/418—Refractive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
- B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
- B32B2457/208—Touch screens
Abstract
The invention provides a touch layer, a preparation method thereof and a touch device, and relates to the technical field of touch. The touch control layer comprises a first substrate layer, a nano metal wire film layer with a touch control array pattern and a second substrate layer, wherein the nano metal wire film layer is positioned between the first substrate layer and the second substrate layer, and a high refractive index polymer is mixed in the nano metal wire film layer. In the embodiment of the invention, the high refractive index polymer can be mixed in the nanowire film layer positioned between the first substrate layer and the second substrate layer in the touch layer, so that the refractive index of the nanowire film layer can be adjusted, the diffuse reflection of the nanowire film layer is weakened, and the haze of the surface of the touch layer is reduced.
Description
Technical Field
The present invention relates to the field of touch technologies, and in particular, to a touch layer, a method for manufacturing the same, and a touch device.
Background
With the development of mobile terminals, wearable devices and intelligent home appliances, the demands of the market for the large size, low price and flexibility of touch panels are increasing. The touch layer in the touch panel usually adopts an ITO film, but the conventional ITO film cannot be bent and applied, and has the intrinsic problems of low conductivity, low light transmittance and the like, which cannot be effectively improved. The advantages of the nano metal wires such as the nano silver wires in the resistance, the ductility and the bendability make the nano metal wires an important scheme for replacing the ITO film.
Taking nano silver wires as an example, the nano silver wire technology is to smear nano silver wire ink material on a plastic or glass substrate, and then to manufacture a transparent conductive film with a transverse and longitudinal staggered touch array pattern as a touch layer by utilizing a laser lithography technology. The line width is very small and the diameter is about 50nm, so that the transmittance can reach more than 90%.
However, the nano silver wire touch layer has the defect that the surface of the whole bottom substrate is fully covered by the nano silver wire in a coating mode, so that the touch layer manufactured by the nano silver wire process has high surface haze, serious diffuse reflection problem exists, the haze problem of the screen can cause strong reflection of the screen under the condition of strong light irradiation, and a user can not see the screen clearly when serious reflection occurs. Therefore, the nano metal wire touch layer has the problem of larger haze.
Disclosure of Invention
The invention provides a touch layer, a preparation method thereof and a touch device, which are used for solving the problem that the prior nano metal wire touch layer is large in haze and easy to cause a user to see an invisible screen.
In order to solve the above problems, the invention discloses a touch layer, which comprises a first substrate layer, a nanowire film layer with a touch array pattern, and a second substrate layer, wherein the nanowire film layer is positioned between the first substrate layer and the second substrate layer, and a high refractive index polymer is mixed in the nanowire film layer.
Optionally, a plurality of first light focusing structures are disposed on a side, close to the first substrate layer, of the nanowire film layer, a plurality of first microstructures are disposed on a side, close to the nanowire film layer, of the first substrate layer, and the first light focusing structures are matched with the first microstructures in shape.
Optionally, a plurality of second light condensation structures are disposed on a side, close to the second substrate layer, of the nanowire film layer, and a plurality of second microstructures are disposed on a side, close to the nanowire film layer, of the second substrate layer, and the second light condensation structures are matched with the second microstructures in shape.
Optionally, the first light focusing structure is a hemispherical convex structure.
Optionally, the second light focusing structure is a hemispherical convex structure.
Optionally, at least one of metal oxide nanoparticles, high atomic number monomers and high atomic number polymers are mixed in the nanowire film layer.
Optionally, the high refractive index polymer includes at least one of a polymer of an aromatic monomer and a polymer of a brominated aromatic monomer.
Optionally, the nanowire film layer includes at least one of a nanowire, a nanowire copper wire, and a nanowire tin wire.
In order to solve the problems, the invention also discloses a preparation method of the touch layer, which comprises the following steps:
adding a high refractive index polymer into the nanowire ink to form a nanowire mixed solution;
coating the nanowire mixed solution on a second substrate layer to form a nanowire coating;
curing the nanowire coating;
patterning the cured nano metal wire coating to form a nano metal wire film layer with a touch array pattern;
and forming a first substrate layer on the nano metal wire film layer to obtain the touch control layer.
Optionally, the curing treatment of the nanowire coating includes:
and pressing the first pressing plate on the nanowire coating to form a plurality of first light gathering structures, and curing the nanowire coating in the pressing process of the first pressing plate.
Optionally, the step of coating the nanowire mixture on the second substrate layer to form a nanowire coating comprises the following steps:
forming a plurality of second microstructures on the second substrate layer through pressing by a second pressing plate;
coating the nanowire mixture on the second substrate layer to form a nanowire coating comprising a plurality of second light-condensing structures; the second light focusing structure is matched with the shape of the second microstructure.
In order to solve the problems, the invention also discloses a touch device which comprises the touch layer.
Compared with the prior art, the invention has the following advantages:
in the embodiment of the invention, the high refractive index polymer can be mixed in the nanowire film layer positioned between the first substrate layer and the second substrate layer in the touch layer, so that the refractive index of the nanowire film layer can be adjusted, the diffuse reflection of the nanowire film layer is weakened, and the haze of the surface of the touch layer is reduced.
Drawings
FIG. 1 shows a schematic cross-sectional view of a prior art nano-silver wire touch layer;
fig. 2 is a schematic cross-sectional view of a touch layer according to a first embodiment of the invention;
fig. 3 is a schematic cross-sectional view of another touch layer according to a first embodiment of the disclosure;
FIG. 4 shows a schematic view of an optical path according to a first embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of a touch layer according to a first embodiment of the invention;
fig. 6 is a flowchart illustrating steps of a method for manufacturing a touch layer according to a second embodiment of the present invention;
fig. 7 is a schematic cross-sectional view of a touch layer after forming a nano metal wire coating according to a second embodiment of the present invention;
FIG. 8 is a schematic cross-sectional view of a second substrate layer according to a second embodiment of the invention;
fig. 9 is a schematic cross-sectional view of a touch layer after forming a nanowire coating according to another embodiment of the present invention;
fig. 10 shows a schematic diagram of laminating a plurality of first light-focusing structures on a nanowire coating according to a second embodiment of the present invention;
fig. 11 is a schematic diagram illustrating another embodiment of the present invention, in which a plurality of first light-gathering structures are formed by laminating on a nanowire coating;
FIG. 12 is a schematic view of a first platen according to a second embodiment of the present invention;
fig. 13 is a schematic view showing removal of the first pressing plate after pressing according to the second embodiment of the invention.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
Before describing the embodiments of the present invention in detail, the conventional nanowire touch layer and the haze problem thereof will be described first.
The mass production of the nano-silver wire touch layer will be described below as an example. Fig. 1 shows a schematic cross-sectional view of a conventional nano-silver wire touch layer, referring to fig. 1 and 11, in which a first substrate layer is shown, a nano-silver wire film layer 12 is shown with a touch array pattern with a X, Y direction staggered horizontally and vertically, and nano-silver wires 121 and 13 are included in the nano-silver wire film layer 12, and a second substrate layer is shown. In fig. 1, a parallel light is incident on the nano silver wire touch layer, and factors such as secondary refraction and reflection are not considered. The nano silver wire has a diameter of about 20 to 100nm, a length of about 20 to 70um, an aspect ratio of about 1000, and different lengths and different bending forms, so that a large amount of diffuse reflection is generated on the surface of the nano silver wire, and the parallel light in fig. 1 enters the touch layer for example, and the surface of the nano silver wire generates a large amount of diffuse reflection, so that the direction of emergent light is disordered, namely, the surface of the nano silver film layer shows a high haze.
In practical applications, the touch layer is not limited to the nano silver wire touch layer, and similar high haze problems can occur in touch layers containing some other nano metal wires.
For the problem of high haze of the nano metal wire touch layer, some solutions may be adopted, for example, a layer of high reflection or low reflection film is added on the basis of the nano metal wire touch layer, but this way can additionally increase the thickness of the touch layer, and influence the flexible bending and transmittance of the touch layer. There is also a method of roughening the surface of the nanowire, but there is no way to effectively control the surface roughening degree and amount of the nanowire according to the current physical or chemical preparation method of the nanowire.
In summary, for the existing nanowire touch layer, the preparation method thereof and the touch device in the embodiment of the invention are provided, so as to solve the problem that the existing nanowire touch layer has larger haze and is easy to cause a user to see a screen out of sight.
Example 1
Fig. 2 is a schematic cross-sectional view of a touch layer according to a first embodiment of the present invention, referring to fig. 2, the touch layer includes a first substrate layer 21, a nanowire film layer 22 with a touch array pattern, and a second substrate layer 23, the nanowire film layer 22 is located between the first substrate layer 21 and the second substrate layer 23, and a high refractive index polymer 222 is mixed in the nanowire film layer 22.
Referring to fig. 2, the nanowire film 22 includes a nanowire 221 therein. The nanowire film layer 22 is formed on the second substrate layer 23, the first substrate layer 21 covers the nanowire film layer 22, and the nanowire film layer 22 between the first substrate layer 21 and the second substrate layer 23 is mixed with the high refractive index polymer 222.
Alternatively, the high refractive index polymer 222 may include at least one of a polymer of an aromatic monomer and a polymer of a brominated aromatic monomer. Such as polybrominated phenyl methacrylate, and the like, which are not particularly limited in the examples of the present invention.
In particular applications, the high refractive index polymer 222 may employ a polymer of monomers that are excellent in light transparency (light transparency > 95%), good in hardness, and scratch resistance (hardness > 2H), and the refractive index of the nanowire film 22 may be adjusted by the selection of functional monomers for the high refractive index polymer 222.
In the embodiment of the invention, the refractive index of the nanowire film 22 can be adjusted by mixing the high refractive index polymer 222 in the nanowire film 22 of the touch layer, so that the diffuse reflection of the nanowire film 22 is weakened, and the haze of the surface of the touch layer is reduced.
Further, referring to fig. 3, in an alternative implementation, a plurality of first light focusing structures 223 are disposed on a side of the nanowire film layer 22 adjacent to the first substrate layer 21, and a plurality of first microstructures 211 are disposed on a side of the first substrate layer 21 adjacent to the nanowire film layer 22, and the first light focusing structures 223 are matched with the shapes of the first microstructures 211.
Alternatively, the first light focusing structure 223 may be a hemispherical convex structure, and of course, may be another shape structure, such as an elliptical convex structure, which is not limited in particular by the embodiment of the present invention.
Referring to fig. 4, a schematic light path diagram of the first embodiment of the present invention is shown, taking the parallel light incident on the touch layer in fig. 4 as an example, due to the high refractive index polymer 222 and the first light focusing structure 223, diffuse reflection generated by the nano metal wires 221 is weakened, so that emergent light can be basically emitted in parallel, and the haze of the surface of the touch layer is reduced.
Referring to fig. 5, in another alternative implementation, a plurality of second light collecting structures 224 are disposed on a side of the nanowire film layer 22 adjacent to the second substrate layer 23, and a plurality of second microstructures 231 are disposed on a side of the second substrate layer 23 adjacent to the nanowire film layer 22, and the second light collecting structures 224 are matched with the shapes of the second microstructures 231.
Alternatively, the second light collecting structure 224 is a hemispherical convex structure, but may be other shapes, such as an elliptical convex structure, which is not limited in the embodiment of the present invention.
In the embodiment of the present invention, the position of the light condensing structure is not limited to the upper surface or the lower surface of the nanowire film layer 22, and may be disposed only on the upper surface of the nanowire film layer 22, that is, on the side of the nanowire film layer 22 close to the first substrate layer 21, or may be disposed only on the lower surface of the nanowire film layer 22, that is, on the side of the nanowire film layer 22 close to the second substrate layer 23, or may be disposed on both the upper surface and the lower surface of the nanowire film layer 22, which is not particularly limited in the embodiment of the present invention. In addition, the shapes of the first light collecting structure 223 and the second light collecting structure 224 may be the same or different, which is not particularly limited in the embodiment of the present invention.
Optionally, at least one of metal oxide nanoparticles, high atomic number monomers, and high atomic number polymers may be mixed in the nanowire film layer 22. Referring to fig. 3, 4 or 5, that is, the nanowire film 22 may be mixed with a substance 225 for improving the conductivity of the nanowire, and the metal oxide nanoparticles, the high-atomic-number monomer and the high-atomic-number polymer may improve the conductivity of the nanowire, thereby improving the touch sensing capability of the touch layer.
Optionally, the nanowire film 22 includes at least one of a nano silver wire, a nano copper wire and a nano tin wire, that is, in practical application, the nano metal wire 221 may be at least one of a nano silver wire, a nano copper wire and a nano tin wire, which is not limited in particular by the embodiment of the present invention.
In a specific application, the user may specifically touch the first substrate layer 21 in the touch layer, so as to implement a touch function through the touch array pattern of the touch layer.
In practical applications, the first substrate layer 21 and the second substrate layer 23 may be a PET (polyethylene terephthalate) material layer, an adhesive layer, etc., which is not particularly limited in the embodiment of the present invention.
In the embodiment of the invention, the high refractive index polymer can be mixed in the nanowire film layer positioned between the first substrate layer and the second substrate layer in the touch layer, so that the refractive index of the nanowire film layer can be adjusted, the diffuse reflection of the nanowire film layer is weakened, and the haze of the surface of the touch layer is reduced.
Example two
Fig. 6 is a step flowchart of a method for manufacturing a touch layer according to a second embodiment of the present invention, and referring to fig. 6, the method for manufacturing a touch layer according to the second embodiment of the present invention includes the following steps:
step 601: and adding a high refractive index polymer into the nanowire ink to form a nanowire mixed solution.
In this step, the nanowire ink is a nanowire suspension formed by adding a common solvent to the nanowire, wherein the common solvent may be deionized water, alcohols (such as methanol, ethanol, isopropanol), benzenes (such as toluene), etc., and the embodiment of the present invention is not limited thereto.
A high refractive index polymer 222, such as polybrominated phenyl methacrylate, may be added to the nanowire ink to form a nanowire mixture.
Optionally, before or after this step, the method may further comprise the steps of: at least one of metal oxide nanoparticles, high atomic number monomers, and high atomic number polymers is added to the nanowire ink. The metal oxide nano particles, the high atomic number monomer and the high atomic number polymer can improve the conduction rate of the nano metal wire, so that the touch sensing capability of the touch layer can be improved.
Step 602: and coating the nanowire mixed solution on a second substrate layer to form a nanowire coating.
In an alternative implementation of the present invention, referring to fig. 7, the prepared nanowire mixture may be coated on the second substrate layer 23, thereby forming the nanowire coating 01. The mode of coating the nanowire mixture is not limited to roll coating, slit coating, spin coating, spraying, and the like, and the embodiment of the invention is not particularly limited thereto.
In a second alternative implementation, referring to fig. 8, the present step may specifically include the following steps: forming a plurality of second microstructures 231 on the second substrate layer 23 by pressing the second pressing plate; coating the nanowire mixture on the second substrate layer 23 to form a nanowire coating 01 including a plurality of second light-condensing structures 224; the second light collecting structure 224 matches the shape of the second microstructure 231.
Wherein the second platen includes a plurality of microstructures that match the shape of the second microstructures 231. Referring to fig. 8, for example, the second microstructure 231 may be a hemispherical concave structure, and accordingly, the microstructure on the second platen may be a hemispherical convex structure matching the shape of the hemispherical concave structure. In a specific application, the second substrate layer 23 may be laminated by a second platen, where a surface of the second platen on which the first platen structure is formed contacts the second substrate layer 23, so that a plurality of second microstructures 231 may be formed on the second substrate layer 23. Optionally, the second substrate layer 23 formed with the plurality of second microstructures 231 may be further subjected to a curing process to accelerate the shaping of the second microstructures 231. Then, referring to fig. 9, the prepared nanowire mixture may be coated on the second substrate layer 23 formed with the plurality of second microstructures 231 to form a nanowire coating 01 including the plurality of second light collecting structures 224.
Further alternatively, the surface of the first platen structure may be subjected to specular highlight in advance, so that the surface of the second microstructure 231 may be smoother, and further diffuse reflection of the touch layer may be reduced. In practical application, the first pressing plate structure on the second pressing plate can be manufactured through nano etching and other processes, and the manufacturing process of the first pressing plate structure is not particularly limited in the embodiment of the invention.
That is, in one implementation, the second microstructure 231 is not formed on the second substrate layer 23, and accordingly, the second light condensing structure 224 is not formed on the lower surface of the nanowire coating 01. In the second implementation, the second substrate layer 23 is formed with a second microstructure 231, and correspondingly, the lower surface of the nanowire coating 01 is also formed with a second light condensing structure 224.
By designing a three-dimensional light-gathering microstructure above or below the nanowire coating, the surface area and volume of the nanowire coating can be increased, the number of the nanowire which acts on the nanowire coating can be correspondingly increased, so that a touch layer electrode with stronger electric conduction capacity can be obtained, and the electric conduction capacity of the touch layer is improved.
In addition, in the embodiment of the invention, the thickness of the nano metal wire coating 01 is not required, and the required thickness can be formulated according to the expected purpose or the thickness.
Step 603: and curing the nanowire coating.
In this step, the nanowire coating 01 may be subjected to a curing process, wherein the manner of the curing process is not limited to UV (ultraviolet) curing, infrared curing, warming curing, etc., and the embodiment of the present invention is not particularly limited thereto.
Alternatively, referring to fig. 10 or 11, this step may also be implemented by including: and forming a plurality of first light gathering structures 223 on the nanowire coating 01 through pressing by the first pressing plate 02, and curing the nanowire coating 01 in the pressing process of the first pressing plate 02.
In which fig. 12 shows a schematic view of a first platen 02, referring to fig. 12, the first platen 02 includes a plurality of second platen structures 021 that match the shape of the first light focusing structures 223. Referring to fig. 8, for example, the first light condensing structure 223 may be a hemispherical convex structure, and accordingly, the second pressing plate structure 021 on the second pressing plate 02 may be a hemispherical concave structure matching with the shape of the hemispherical convex structure. In a specific application, the first pressing plate 02 may be used to press the nanowire coating 01, where the surface of the second pressing plate 02 where the second pressing plate structure 021 is formed is in contact with the nanowire coating 01, so that a plurality of first light focusing structures 223 may be formed on the nanowire coating 01. The nanowire coating 01 may be subjected to a curing treatment, such as UV curing by using an ultraviolet lamp 03 shown in fig. 10, while being pressed by the first pressing plate 02, and after the curing is completed, the upper first pressing plate 02 is removed, as shown in fig. 13.
Further alternatively, the surface of the second pressing plate structure 021 may be subjected to specular highlight in advance, so that the surface of the first light focusing structure 223 may be smoother, and further diffuse reflection of the touch layer is reduced. In practical application, the second pressing plate structure on the first pressing plate can also be processed and manufactured through nano etching and other processes, so that the purpose of obtaining the three-dimensional structure layer with the light condensation function, namely the first light condensation structure is achieved.
In the embodiment of the present invention, fig. 10 shows a case where a light condensing structure is formed only on the upper surface of the nanowire coating, fig. 11 shows a case where light condensing structures are formed on both the upper surface and the lower surface of the nanowire coating, and of course, as shown in fig. 2, no light condensing structure may be provided on both the upper surface and the lower surface of the nanowire coating.
Step 604: and patterning the cured nanowire coating to form a nanowire film layer with a touch array pattern.
In the step, the cured nanowire coating can be subjected to patterning treatment to form a touch array pattern with transverse and longitudinal staggered X direction and Y direction on the cured nanowire coating, so that a nanowire film layer with the touch array pattern is obtained.
Optionally, a touch array pattern may be formed on the cured nano metal wire coating by a laser lithography technology, and the embodiment of the invention does not specifically limit a process for forming the touch array pattern.
Step 605: and forming a first substrate layer on the nano metal wire film layer to obtain the touch control layer.
In this step, the first substrate layer 21 may be formed on the nanowire film layer, thereby obtaining a touch layer, as shown in fig. 3 or 5.
In the case that the first light focusing structure is formed on the upper surface of the nanowire film layer, the first substrate layer 21 can fill up the gaps between the first light focusing structures under the action of gravity, so that a plurality of first microstructures 211 can be formed on one side of the first substrate layer 21, which is close to the nanowire film layer, that is, a shape similar to that of the second pressing plate structure of the first pressing plate 02 is formed.
In the embodiment of the invention, the diffuse reflection light of the touch layer can be eliminated by adding the high refractive index polymer into the nano metal wire film layer and profiling and solidifying the nano metal wire coating by the microstructure pressing plate, so that the thickness of the touch layer is not required to be additionally increased, the better flexible bending and transmittance of the touch layer can be ensured, and in addition, the surface roughening degree and the surface roughening quantity of the nano metal wire are not required to be controlled.
In the embodiment of the invention, a high refractive index polymer can be added into the nanowire ink to form a nanowire mixed solution, then the nanowire mixed solution is coated on a second substrate layer to form a nanowire coating, then the nanowire coating is cured, the cured nanowire coating is subjected to patterning treatment to form a nanowire film layer with a touch array pattern, and then a first substrate layer is formed on the nanowire film layer to obtain the touch layer. The high refractive index polymer is added into the nanowire ink, so that the refractive index of the nanowire film layer can be adjusted, diffuse reflection of the nanowire film layer is weakened, and the haze of the surface of the touch control layer is reduced.
Example III
The embodiment of the invention also discloses a touch device comprising the touch layer.
In the embodiment of the invention, the high refractive index polymer can be mixed in the nanowire film layer positioned between the first substrate layer and the second substrate layer in the touch layer, so that the refractive index of the nanowire film layer can be adjusted, the diffuse reflection of the nanowire film layer is weakened, and the haze of the surface of the touch layer is reduced.
For the foregoing method embodiments, for simplicity of explanation, the methodologies are shown as a series of acts, but one of ordinary skill in the art will appreciate that the present invention is not limited by the order of acts, as some steps may, in accordance with the present invention, occur in other orders or concurrently. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily required for the present invention.
In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by differences from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.
Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.
The above detailed description of the touch layer, the preparation method thereof and the touch device provided by the invention applies specific examples to illustrate the principle and the implementation of the invention, and the above examples are only used for helping to understand the method and the core idea of the invention; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present invention, the present description should not be construed as limiting the present invention in view of the above.
Claims (10)
1. The touch control layer is characterized by comprising a first substrate layer, a nano metal wire film layer with a touch control array pattern and a second substrate layer, wherein the nano metal wire film layer is positioned between the first substrate layer and the second substrate layer, and a high refractive index polymer is mixed in the nano metal wire film layer;
the nano metal wire film layer is provided with a plurality of first light gathering structures on one side close to the first substrate layer, and a plurality of second light gathering structures on one side close to the second substrate layer, wherein the shapes of the first light gathering structures and the second light gathering structures are the same or different;
wherein the first light focusing structure is a continuous hemispherical convex structure.
2. The touch layer of claim 1, wherein a plurality of first microstructures are disposed on a side of the first substrate layer adjacent to the nanowire film layer, and the first light focusing structures are matched with the first microstructures in shape.
3. The touch layer according to claim 1 or 2, wherein a plurality of second microstructures are arranged on a side, close to the nanowire film layer, of the second substrate layer, and the second light condensation structures are matched with the second microstructures in shape.
4. The touch layer of claim 3, wherein the second light focusing structure is a hemispherical convex structure.
5. The touch layer of claim 1, wherein the nanowire film layer is further mixed with metal oxide nanoparticles.
6. The touch layer of claim 1, wherein the high refractive index polymer comprises at least one of a polymer of an aromatic monomer and a polymer of a brominated aromatic monomer.
7. The touch layer of claim 1, wherein the nanowire film comprises at least one of a nano silver wire, a nano copper wire, and a nano tin wire.
8. The preparation method of the touch control layer is characterized by comprising the following steps:
adding a high refractive index polymer into the nanowire ink to form a nanowire mixed solution;
coating the nanowire mixture on a second substrate layer to form a nanowire coating comprising a plurality of second light-condensing structures;
a plurality of first light-gathering structures are formed on the nanowire coating through pressing by a first pressing plate, and the shapes of the first light-gathering structures and the second light-gathering structures are the same or different, wherein the first light-gathering structures are continuous hemispherical convex structures; and in the pressing process of the first pressing plate, curing the nano metal wire coating;
patterning the cured nano metal wire coating to form a nano metal wire film layer with a touch array pattern;
and forming a first substrate layer on the nano metal wire film layer to obtain the touch control layer.
9. The method of claim 8, wherein prior to coating the nanowire mixture on the second substrate layer, the method further comprises:
and pressing the second substrate layer through a second pressing plate to form a plurality of second microstructures, wherein the second light condensation structures are matched with the second microstructures in shape.
10. A touch device comprising the touch layer according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010397923.0A CN113650373B (en) | 2020-05-12 | 2020-05-12 | Touch layer, preparation method thereof and touch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010397923.0A CN113650373B (en) | 2020-05-12 | 2020-05-12 | Touch layer, preparation method thereof and touch device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113650373A CN113650373A (en) | 2021-11-16 |
| CN113650373B true CN113650373B (en) | 2023-09-08 |
Family
ID=78488721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010397923.0A Active CN113650373B (en) | 2020-05-12 | 2020-05-12 | Touch layer, preparation method thereof and touch device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113650373B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101292362A (en) * | 2005-08-12 | 2008-10-22 | 凯博瑞奥斯技术公司 | Nanowires-based transparent conductors |
| CN101689568A (en) * | 2007-04-20 | 2010-03-31 | 凯博瑞奥斯技术公司 | Composite transparent conductors and methods of forming the same |
| CN104067351A (en) * | 2011-11-04 | 2014-09-24 | 凯博瑞奥斯技术公司 | Methods for reducing diffuse reflection of nanostructure-based transparent conductive films and touch panels made of the same |
| CN104221098A (en) * | 2012-03-23 | 2014-12-17 | 富士胶片株式会社 | Method of manufacturing conductive member, conductive member, and touch panel using same |
| JP2015040316A (en) * | 2013-08-20 | 2015-03-02 | デクセリアルズ株式会社 | Nanoparticle carrying metal nanowire, dispersion, transparent conductive film and production method thereof, as well as touch panel |
| CN105204674A (en) * | 2014-06-12 | 2015-12-30 | 宸鸿科技(厦门)有限公司 | Touch control display module |
| CN105204673A (en) * | 2014-06-12 | 2015-12-30 | 宸鸿科技(厦门)有限公司 | Touch panel |
| JP2016076241A (en) * | 2015-11-26 | 2016-05-12 | デクセリアルズ株式会社 | Transparent conductive film and manufacturing method thereof, information input device, and electronic device |
| CN107251160A (en) * | 2014-12-16 | 2017-10-13 | 索尔维公司 | Transparent conductor comprising metal nanometer line and forming method thereof |
| CN108897462A (en) * | 2018-06-30 | 2018-11-27 | 云谷（固安）科技有限公司 | Touch panel and preparation method thereof, display device |
| CN108958547A (en) * | 2018-06-30 | 2018-12-07 | 云谷（固安）科技有限公司 | A kind of touch panel and preparation method |
| CN109546005A (en) * | 2018-12-07 | 2019-03-29 | 京东方科技集团股份有限公司 | Display module and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9523797B2 (en) * | 2012-09-21 | 2016-12-20 | Electronics And Telecommunications Research Institute | Microlens array film and display device including the same |
-
2020
- 2020-05-12 CN CN202010397923.0A patent/CN113650373B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101292362A (en) * | 2005-08-12 | 2008-10-22 | 凯博瑞奥斯技术公司 | Nanowires-based transparent conductors |
| CN101689568A (en) * | 2007-04-20 | 2010-03-31 | 凯博瑞奥斯技术公司 | Composite transparent conductors and methods of forming the same |
| CN104067351A (en) * | 2011-11-04 | 2014-09-24 | 凯博瑞奥斯技术公司 | Methods for reducing diffuse reflection of nanostructure-based transparent conductive films and touch panels made of the same |
| CN104221098A (en) * | 2012-03-23 | 2014-12-17 | 富士胶片株式会社 | Method of manufacturing conductive member, conductive member, and touch panel using same |
| JP2015040316A (en) * | 2013-08-20 | 2015-03-02 | デクセリアルズ株式会社 | Nanoparticle carrying metal nanowire, dispersion, transparent conductive film and production method thereof, as well as touch panel |
| CN105204674A (en) * | 2014-06-12 | 2015-12-30 | 宸鸿科技(厦门)有限公司 | Touch control display module |
| CN105204673A (en) * | 2014-06-12 | 2015-12-30 | 宸鸿科技(厦门)有限公司 | Touch panel |
| CN107251160A (en) * | 2014-12-16 | 2017-10-13 | 索尔维公司 | Transparent conductor comprising metal nanometer line and forming method thereof |
| JP2016076241A (en) * | 2015-11-26 | 2016-05-12 | デクセリアルズ株式会社 | Transparent conductive film and manufacturing method thereof, information input device, and electronic device |
| CN108897462A (en) * | 2018-06-30 | 2018-11-27 | 云谷（固安）科技有限公司 | Touch panel and preparation method thereof, display device |
| CN108958547A (en) * | 2018-06-30 | 2018-12-07 | 云谷（固安）科技有限公司 | A kind of touch panel and preparation method |
| CN109546005A (en) * | 2018-12-07 | 2019-03-29 | 京东方科技集团股份有限公司 | Display module and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113650373A (en) | 2021-11-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101263564B (en) | Transparent conductive film, electrode plate for touch panel, and the touch panel | |
| CN103257748B (en) | Contact panel and manufacture method | |
| CN103279222B (en) | Touch panel and preparation method thereof | |
| CA2826027A1 (en) | Patterned flexible transparent conductive sheet and manufacturing method thereof | |
| KR20140132264A (en) | Touch screen sensing module, manufacturing method thereof and display device | |
| CN106133660B (en) | Touch panel and its manufacturing method | |
| CN102819367B (en) | Manufacturing method of touch panel | |
| CN109799935A (en) | Touch-control sensing unit | |
| CN113534976A (en) | Touch panel with dummy pattern | |
| CN110770687A (en) | Transparent conductive film | |
| TWM607109U (en) | Touch panel | |
| WO2020149113A1 (en) | Transparent electroconductive film | |
| CN113650373B (en) | Touch layer, preparation method thereof and touch device | |
| CN102279677B (en) | Structure of touch panel and manufacturing method thereof | |
| CN103034355A (en) | Touch sensing structure and manufacturing method thereof | |
| US11003290B2 (en) | Sensing film with an integrated structure | |
| US20140131067A1 (en) | Transparent conductor and preparation method thereof | |
| CN103971787A (en) | Transparent electric conductor and method for manufacturing same | |
| CN202976874U (en) | Transparent conductor | |
| WO2017056977A1 (en) | Touch panel sensor manufacturing method and touch panel sensor | |
| US20140262452A1 (en) | Embossed micro-structure with cured transfer material method | |
| US20200348775A1 (en) | Weathering-resistant transparent thin film | |
| CN109991772B (en) | Display panel film structure and preparation process thereof | |
| CN113534975A (en) | Touch electrode, touch panel using same and touch display | |
| CN212515719U (en) | Touch panel with dummy pattern |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |