TW201530399A - Touch device - Google Patents

Abstract

A touch device includes a first substrate, a structure layer and a touch unit. The first substrate has a first surface and a second surface opposite to the first surface. The structure layer is disposed on the first surface of the first substrate. The structure layer has a rough surface opposite to the first substrate. The rough surface includes a plurality of nanostructures. The touch unit at least partially overlaps the nanostructures along a vertical projective direction perpendicular to the first substrate.

Description

Touch device

The present invention relates to a touch device, and more particularly to a touch device for forming a nano microstructure on a structural layer to reduce the visibility of the touch component.

The technology development of touch panels is very diverse, and the more common technologies include resistive, capacitive, and optical. Among them, capacitive touch panels have become the mainstream touch technology used in middle and high-end consumer electronic products due to their high accuracy, multi-touch, high durability and high touch resolution. The operation principle of the capacitive touch panel is to use the sensing electrode to detect the change of the capacitance of the touch point, and to use the connecting line connecting the electrodes on different axes to transmit the signal back to complete the positioning. Among them, the connecting wires are generally formed of a metal material having a low electrical resistivity. However, since the connecting line formed of the metal material is relatively easy to reflect light, the connecting line is easily recognized and causes a visual effect of the touch panel. In addition, in the related field, a metal mesh interwoven with metal wires has been developed to replace the transparent conductive material to form a sensing electrode to improve the reaction speed. However, the metal materials used in the metal grid are also more likely to reflect light, which may also cause adverse effects on the visual effect of the touch panel.

One of the main purposes of the present invention is to provide a touch device for forming a nano-structure on a structure layer overlapping the touch element, and scattering or suppressing the reflected light that may be generated by the touch element by the nano-structure. The effect of the reflected light is emitted, thereby achieving the purpose of improving the appearance quality of the touch device.

To achieve the above objective, an embodiment of the present invention provides a touch device including a first substrate, a structural layer, and a touch element. The first substrate has a first surface and a second surface, and the first surface is opposite to the second surface. The structural layer is disposed on the first surface of the first substrate. The structural layer has a roughened surface, the roughened surface is opposite the first substrate, and the roughened surface includes a plurality of nano microstructures. The touch element is at least partially overlapped with the nano-structure in a vertical projection direction of a vertical first substrate.

Another embodiment of the present invention provides a touch device in which the distance between the vertices of two adjacent nanostructures is between 90 nm and 900 nm.

Another embodiment of the present invention provides a touch device in which two adjacent nano microstructures are connected to each other with a connection point between the highest point and the connection point of one of the two adjacent nano microstructures. It has a height and a height between 90 nm and 900 nm.

Another embodiment of the present invention provides a touch device in which a distance between a highest point and a lowest point of a nano microstructure in a vertical projection direction is between 90 nm and 900 nm.

Another embodiment of the present invention provides a touch device in which nano microstructures are disposed in connection with each other.

Another embodiment of the present invention provides a touch device in which a structural layer includes an organic material, an inorganic material, or an organic-inorganic composite material.

Another embodiment of the present invention provides a touch device in which a structural layer has a refractive index of between 1.35 and 2.

Another embodiment of the present invention provides a touch device in which a touch element is disposed on a roughened surface of a structural layer.

Another embodiment of the present invention provides a touch device, further comprising a decorative layer disposed on the first substrate, and the first substrate is a light transmissive cover plate.

Another embodiment of the present invention provides a touch device in which the thickness of the decorative layer is less than the thickness of the structural layer.

Another embodiment of the present invention provides a touch device in which the thickness of the decorative layer is greater than the thickness of the structural layer.

Another embodiment of the present invention provides a touch device in which a decorative layer is disposed on a first surface of a first substrate.

Another embodiment of the present invention provides a touch device in which a decorative layer is at least partially disposed between a structural layer and a first substrate.

Another embodiment of the present invention provides a touch device, further comprising a second substrate disposed opposite to the first substrate, wherein the second substrate has a third surface and a fourth surface, and the third surface and the fourth surface In contrast, the third surface faces the first surface of the first substrate, and the touch component is at least partially disposed on the third surface of the second substrate.

Another embodiment of the present invention provides a touch device in which a touch component is disposed on a first surface of a first substrate, and a touch component is disposed between the structural layer and the first substrate.

Another embodiment of the present invention provides a touch device, further comprising a light transmissive cover plate disposed opposite to the first substrate, wherein the structural layer is disposed between the first substrate and the light transmissive cover plate.

Another embodiment of the present invention provides a touch device, further comprising a decorative layer disposed on the transparent cover plate.

Another embodiment of the present invention provides a touch device, further comprising a light shielding layer disposed at least partially between the touch element and the structural layer.

Another embodiment of the present invention provides a touch device, wherein the touch element includes at least one metal layer or at least one metal mesh, wherein the metal mesh has a line width and the line width is between 0.1 micrometer and 10 micrometers. .

Another embodiment of the present invention provides a touch device in which a touch element includes a plurality of touch electrodes electrically insulated from each other.

Another embodiment of the present invention provides a touch device, wherein the touch electrode includes at least one touch signal driving electrode and at least one touch signal receiving electrode.

Another embodiment of the present invention provides a touch device in which a touch element includes at least one first axial electrode and at least one second axial electrode. The first axial electrode extends in a first direction, and the second axial electrode extends in a second direction. The second axial electrode is electrically insulated from the first axial electrode.

Another embodiment of the present invention provides a touch device, wherein the first axial electrode includes a plurality of first sub-electrodes and at least one first connecting line is disposed between two adjacent first sub-electrodes, the first connecting line Electrically connecting two adjacent first sub-electrodes, the second axial electrode includes a plurality of second sub-electrodes, and at least one second connecting line is disposed between two adjacent second sub-electrodes, and the second connecting line is electrically Connecting two adjacent second sub-electrodes.

Another embodiment of the present invention provides a touch device, wherein the first substrate comprises a glass substrate, a plastic substrate, a glass film, a plastic film, a light-transmissive cover plate or a display substrate.

Another embodiment of the present invention provides a touch device in which the thickness of the structural layer is between 200 nm and 10 microns.

101-105, 200-201, 300, 400-404‧‧‧ touch devices

111‧‧‧First substrate

111A‧‧‧ first side

111B‧‧‧ second side

112‧‧‧second substrate

112A‧‧‧ third side

112B‧‧‧ fourth side

113‧‧‧Light cover plate

113A‧‧‧The fifth side

113B‧‧‧ sixth side

120‧‧‧decorative layer

130‧‧‧Structural layer

130S‧‧‧ rough surface

140‧‧‧Touch components

140C‧‧‧Wiring

140M‧‧‧ grid pattern

140R‧‧‧ touch signal receiving electrode

140S‧‧‧ touch electrode

140T‧‧‧ touch signal drive electrode

140X‧‧‧first axial electrode

140Y‧‧‧second axial electrode

150‧‧‧Insulating components

159‧‧‧Protective layer

160‧‧‧Lighting layer

161‧‧‧ first light shielding layer

162‧‧‧ second light shielding layer

170‧‧‧Adhesive layer

490‧‧‧ display

491‧‧‧ shows the lower substrate

492‧‧‧ Display media

B‧‧‧ bottom

C‧‧‧ connection point

D1, D2, D3‧‧‧ distance

D4‧‧ depth

H‧‧‧ Height

M‧‧ nm nanostructure

P1‧‧‧ hexagonal grid unit

P2‧‧‧ quadrilateral mesh unit

T‧‧‧ vertex

X‧‧‧ first direction

X1‧‧‧ first subelectrode

X2‧‧‧ first cable

Y‧‧‧second direction

Y1‧‧‧Second subelectrode

Y2‧‧‧second cable

Z‧‧‧Vertical projection direction

FIG. 1 is a schematic view of a touch device according to a first embodiment of the present invention.

Fig. 2 is a schematic view showing the nanostructure of the first embodiment of the present invention.

Fig. 3 is a schematic view showing the irregularly arranged nanostructures of the first embodiment of the present invention.

Fig. 4 is a schematic view showing the nanostructures of the first embodiment of the present invention which are arranged separately from each other.

FIG. 5 is a schematic diagram of a self-capacitive touch element according to a first embodiment of the present invention.

FIG. 6 is a schematic view showing a hexagonal grid pattern of the touch element according to the first embodiment of the present invention.

FIG. 7 is a schematic view showing a quadrilateral mesh pattern of the touch element according to the first embodiment of the present invention.

Fig. 8 is a schematic cross-sectional view taken along line A-A' in Fig. 7.

FIG. 9 is a schematic diagram showing a mutual capacitive touch element according to a first embodiment of the present invention.

FIG. 10 is a schematic diagram of another mutual capacitive touch element according to the first embodiment of the present invention.

FIG. 11 is a schematic view showing another mutual capacitive touch element according to the first embodiment of the present invention.

Fig. 12 is a schematic cross-sectional view taken along line B-B' in Fig. 11.

FIG. 13 is a schematic view showing a touch device according to a second embodiment of the present invention.

FIG. 14 is a schematic view showing a touch device according to a third embodiment of the present invention.

FIG. 15 is a schematic view showing a touch device according to a fourth embodiment of the present invention.

FIG. 16 is a schematic diagram of a touch device according to a fifth embodiment of the present invention.

FIG. 17 is a schematic diagram of a touch device according to a sixth embodiment of the present invention.

FIG. 18 is a schematic diagram of a touch device according to a seventh embodiment of the present invention.

FIG. 19 is a schematic diagram of a touch device according to an eighth embodiment of the present invention.

FIG. 20 is a schematic diagram of a touch device according to a ninth embodiment of the present invention.

21 is a schematic view of a touch device according to a tenth embodiment of the present invention.

Figure 22 is a schematic view showing a touch device according to an eleventh embodiment of the present invention.

FIG. 23 is a schematic view showing a touch device according to a twelfth embodiment of the present invention.

Figure 24 is a schematic view showing a touch device of a thirteenth embodiment of the present invention.

The present invention will be described in detail with reference to the preferred embodiments of the invention,

Please refer to Figures 1 to 4. FIG. 1 is a schematic view of a touch device according to a first embodiment of the present invention. 2 to 4 are schematic views showing the nanostructure of the present embodiment. For the convenience of description, the drawings of the present invention are only for the purpose of understanding the present invention, and the detailed proportions thereof can be adjusted according to the design requirements. As shown in FIG. 1 , the touch device 101 includes a first substrate 111 , a structural layer 130 , and a touch element 140 . The first substrate 111 has a first surface 111A and a second surface 111B, and the first surface 111A is opposite to the second surface 111B. The first substrate 111 may include a glass substrate, a plastic substrate, a glass film, a plastic film, a light-transmissive cover plate or a display substrate. Wherein, the light-transmitting cover plate may be provided with a decorative layer 120 on at least one side thereof, and the light-transmitting cover plate may include a glass cover plate, a plastic cover plate or other materials with high mechanical strength to form protection (for example, scratch resistance), Covering or beautifying the light-transmitting cover plate of the corresponding device, the thickness of the transparent cover plate may be between 0.02 mm and 2 mm. The light-transmitting cover plate may have a planar shape or a curved shape, or a combination thereof, for example, 2.5D glass, but not limited thereto, and the light-transmitting cover plate has a transmittance of 85% or more. Alternatively, an anti-smudge coating may be provided on one side of the light-transmitting cover plate facing the user. another The first substrate 111 may be a color filter substrate, an active array substrate, or a package cover of an organic light emitting display, but is not limited thereto.

The structural layer 130 is disposed on one side of the first substrate 111, for example, on the first surface 111A of the first substrate 111. The structural layer 130 has a roughened surface 130S, the roughened surface 130S is opposite to the first substrate 111, and the roughened surface 130S includes a plurality of nano microstructures M. The structural layer 130 of the present embodiment may include an organic material, an inorganic material, or an organic and inorganic composite material. The above organic material may include an acrylic resin, a polyurethane (PU), an epoxy resin, a phenol resin or other suitable organic materials, and the above inorganic material may include silicon nitride. , silicon oxide, silicon oxynitride or other suitable inorganic materials, and the above organic and inorganic composite materials may include organic-inorganic mixed sol-gel materials. In addition, the material of the structural layer 130 preferably also has ultraviolet curing or heat curing characteristics, but is not limited thereto. The nanostructures M constituting the roughened surface 130S on the structural layer 130 are preferably formed by plasma surface treatment or nanoimprinting, but the invention is not limited thereto. In other embodiments of the present invention, the nanostructures M are formed in other suitable manners depending on the material and process considerations of the structural layer 130.

The touch component 140 is at least partially overlapped with the nano microstructure M in a vertical projection direction Z of the vertical first substrate 111. Alternatively, if the touch component 140 includes a metal material that is easy to generate light reflection, the metal component is made of metal. The portion of the touch element 140 overlaps with the nano-microstructure M in the vertical projection direction Z. Therefore, as shown in FIG. 1 , when the light sequentially passes through the first substrate 111 and the structural layer 130 to reach the touch element 140 composed of a metal that is easy to generate light reflection, the nano microstructure M on the structural layer 130 can be used. A scattering effect is produced on this reflected light. In other words, the touch element 140 of the present embodiment is disposed on the roughened surface 130S of the structural layer 130. Therefore, the nano microstructure M can also be used to increase the intensity of the metal surface plasma in the touch element 140 and increase the light. Absorption thus reduces the reflection of the metal surface. Therefore, the nano microstructure M of the embodiment can be used to lower the touch element 140 in the first The identifiable degree of viewing on the second surface 111B of the substrate 111 further improves the visual effect of the touch device 101.

As shown in FIG. 1 and FIG. 2, the structural layer 130 preferably covers the first substrate 111 in a comprehensive manner, and the thickness of the structural layer 130 is preferably between 200 nm and 10 μm, and the refraction of the structural layer 130. The ratio is preferably between 1.35 and 2 to form the desired optical effect, but is not limited thereto. The decorative layer 120 of the embodiment is disposed on the first surface 111A of the first substrate 111, and the decorative layer 120 may be composed of a single layer or a plurality of layers of decorative materials such as ink or colored photoresist, and the decorative layer 120 may be further A light shielding layer is disposed on the decorative material, but is not limited thereto. The thickness of the structural layer 130 of the present embodiment may be thicker than the thickness of the decorative layer 120 and cover the decorative layer 120, that is, the decorative layer 120 may be disposed between the structural layer 130 and the first substrate 111, but not limited thereto. . For example, the thickness of the structural layer 130 in other embodiments of the present invention may also be smaller than the thickness of the decorative layer 120. Thus, the touch element 140 may partially overlap the decorative layer 120 in the vertical projection direction Z, and the structural layer 130 is disposed. It can be used to alleviate the product defects that may occur as a result of the height difference formed by the provision of the decorative layer 120. In addition, the touch device 101 of the present embodiment can also selectively provide a bottom layer (for example, a tantalum nitride layer) between the decorative layer 120 and the first substrate 111 and between the structural layer 130 and the first substrate 111. Show), but not limited to this.

As shown in FIG. 2, the nano microstructures M of the present embodiment can be formed by the above-described nanoimprinting method to exhibit a regular shape and arrangement, and the nano microstructures M can be connected to each other, but not This is limited to this. It should be noted that the surface roughness (Ra) of the roughened surface 130S composed of the nano microstructure M on the structural layer 130 is preferably between 90 nm and 900 nm, which can be used to increase the light. Absorption and scattering, but not limited to this. When the surface roughness is increased to 900-nano to 5 microns, the scattering of light will increase more, and the reflection of the metal surface at a certain angle will be significantly reduced, which can be used to form the desired light scattering effect, but not This is limited. More specifically, the nano microstructure M can be a convex structure or a concave structure, and the top of two adjacent nano microstructures M The distance D1 between the points T is preferably between 90 nm and 900 nm, and the height H of each nano microstructure is preferably between 90 nm and 900 nm, but not This is limited. Further, the two adjacent nano microstructures M may have a connection point C, and the highest point of one of the two adjacent nano microstructures M and the connection point C have the height H, and The height H is between 90 nm and 900 nm.

In addition, as shown in FIG. 3, the nano microstructures M of the present embodiment can also be formed by the above-mentioned plasma surface treatment to exhibit a relatively irregular shape and arrangement, and two adjacent nano microstructures. The distance D1 between the vertices T of M is preferably between 90 nm and 900 nm, and the distance D2 between the highest point and the lowest point of the nano microstructure M in the vertical projection direction Z is preferably between Between 90 nm and 900 nm, but not limited to this, for example, it is also possible to compare the distance between the highest point and the lowest point of two adjacent nanostructures M in the vertical projection direction Z, this distance Preferably, it is between 90 nm and 900 nm. In addition, the sampling method of the distance D2 between the highest point and the lowest point of the nano microstructure M described above can be measured within a predetermined area, for example, a square area having a side length of 0.1 mm can be used for the nanometer. The microstructure M is measured, but is not limited thereto.

In addition, as shown in FIG. 4, each nano microstructure M can also be arranged separately, and when the nano microstructure M is a concave structure, the distance D3 between the bottom B of two adjacent nano microstructures M Preferably, the system is between 90 nm and 900 nm, and the depth D4 of the nano microstructure M is preferably between 90 nm and 900 nm, but is not limited thereto. In other words, the shape and arrangement of the nano-structures M constituting the roughened surface 130S of the present invention are not limited to the conditions of the above-mentioned FIGS. 2 to 4, and may be adjusted to be generated by other design requirements. The required optical effect.

For further explanation of the touch element 140 of the present embodiment, please refer to FIGS. 5 to 12. FIG. 5 is a schematic diagram of the self-capacitive touch element of the embodiment, FIG. 6 and the seventh The figure shows a schematic diagram of a grid pattern of the touch element of the embodiment. Fig. 8 is a schematic cross-sectional view taken along line A-A' in Fig. 7. 9 to 11 are schematic views of different types of mutual capacitive touch elements of the present embodiment. Fig. 12 is a schematic cross-sectional view taken along line B-B' in Fig. 11.

As shown in FIG. 5, the touch element 140 of the present embodiment may include a plurality of touch electrodes 140S and a plurality of traces 140C. Each of the traces 140C is electrically connected to the corresponding touch electrode 140S. Each of the touch electrodes 140S is electrically insulated from each other for performing a self-capacitance touch detection, that is, calculating a capacitance between a touch object (such as a finger or a stylus) and the electrode 140S. Change for touch detection, but not limited to this. The shape of each touch electrode 140S may be a rectangle, a diamond, a triangle or other suitable geometric shape.

In this embodiment, the touch electrodes 140S or/and the traces 140C may be formed by a metal layer or a metal grid. In other words, the touch element 140 can include at least one metal layer or at least one metal mesh, but is not limited thereto. In addition, the touch electrodes 140S or/and the traces 140C may include a grid pattern or a block pattern, that is, the touch electrodes 140S or/and the traces 140C may be formed by a grid pattern or a block pattern. But it is not limited to this. For example, as shown in FIGS. 6 and 7, the touch element 140 may include a grid pattern 140M, and the grid pattern 140M may include a polygonal grid unit arranged by rules (as shown in FIG. 6). Hexagonal grid cells P1, quadrilateral mesh cells P2) shown in Fig. 7 or circular grid cells, irregularly arranged irregular polygon mesh cells or circular mesh cells, or other suitable rules Or an irregularly shaped grid unit. The material of the mesh pattern 140M may include at least one of a metal material such as aluminum (Al), copper (Cu), silver (Ag), chromium (Cr), titanium (Ti), molybdenum (Mo), and niobium (Nd). a composite layer of the above materials (for example, a Mo/Al/Mo laminate, a Mo/AlNd/Mo laminate), an alloy of the above materials (for example, an AlNd or a Mo/AlNd/Mo laminate), but not limit. The metal mesh may have a line width of between 0.1 micrometers and 20 micrometers, and preferably a width of between 1 micrometer and 10 micrometers, but is not limited thereto. Therefore, the embodiment The touch element 140 can be formed at least partially by a metal layer or a metal grid to enhance the related electrical performance, and the nano microstructure on the structural layer can be used to improve the light reflection phenomenon of the metal material in the touch element 140. Therefore, the appearance quality of the touch device can be improved while improving the appearance of the touch device.

In addition, as shown in FIG. 8 , the touch device 101 further includes a light shielding layer 160 at least partially disposed between the touch component 140 and the structural layer 130 to further reduce the touch component 140 from the first substrate 111 . The pattern visibility when viewed on the second side 111B, particularly when the touch element 140 is formed of a grid pattern 140M formed of a metal material. In addition, the touch device 101 may further include a protective layer 159 disposed on the touch component 140 for forming a protective effect on the touch component 140. The protective layer 159 may include an inorganic material such as tantalum nitride, hafnium oxide, and hafnium oxynitride. An organic material such as an acrylic resin or other suitable protective material.

As shown in FIG. 9 , the touch electrode 140S may include at least one touch signal driving electrode 140T and at least one touch signal receiving electrode 140R are disposed apart from each other for performing mutual capacitance touch detection. That is, the capacitance change between the touch signal driving electrode 140T and the touch signal receiving electrode 140R is calculated to perform touch detection, but is not limited thereto.

As shown in FIG. 10, the touch element 140 can also include a plurality of first axial electrodes 140X and a plurality of second axial electrodes 140Y. The first axial electrode 140X extends along a first direction X, and the second axial electrode 140Y extends along a second direction Y. The first axial electrode 140X and the second axial electrode 140Y are vertically projected. Z at least partially overlap each other, and the second axial electrode 140Y is electrically insulated from the first axial electrode 140X from each other. The first direction X is preferably substantially perpendicular to the second direction Y, but is not limited thereto. The first axial electrode 140X and the second axial electrode 140Y are respectively a touch signal driving electrode or a touch signal receiving electrode, which are used for mutual capacitive touch detection, but are not limited thereto. . An insulating member 150 may be disposed between the first axial electrode 140X and the second axial electrode 140Y for electrically isolating the first axial electrode 140X and the second axial electrode 140Y, but the invention is not limited thereto. The insulating member 150 may be a glass substrate, a plastic substrate or an insulating material (such as an organic or inorganic insulating material), wherein the glass substrate and the plastic substrate may be a thin substrate, and the thickness thereof may be substantially less than or equal to 0.25 mm, but not This is limited.

As shown in FIG. 11 , the first axial electrode 140X may further include a plurality of first sub-electrodes X1 and at least one first connection line X2 disposed between two adjacent first sub-electrodes X1, and the first connection line X2 is electrically connected to two adjacent first sub-electrodes X1. The second axial electrode 140Y may include a plurality of second sub-electrodes Y1 and at least one second connecting line Y2 disposed between two adjacent second sub-electrodes Y1, and the second connecting line Y2 is electrically connected to two adjacent ones. The second sub-electrode Y1. In addition, the insulating member 150 is partially disposed between the first connecting line X2 and the second connecting line Y2 for electrically isolating the first axial electrode 140X and the second axial electrode 140Y, but is not limited thereto. The insulating member 150 may include an inorganic material such as tantalum nitride, tantalum oxide and niobium oxynitride, an organic material such as an acrylic resin, or other suitable materials. The touch electrode 140S, the trace 140C, the first axial electrode 140X, the second axial electrode 140Y, the first sub-electrode X1, the first connection line X2, the second sub-electrode Y1, and the second connection line Y2 are respectively respectively It is formed of a transparent conductive material such as indium tin oxide, indium zinc oxide and aluminum zinc oxide, metal or other suitable conductive material. The metal material may be, for example, at least one of gold, aluminum, copper, silver, chromium, titanium, molybdenum, niobium, an alloy of the above materials, a composite layer of the above materials, or a composite layer of the above materials and an alloy of the above materials. However, it is not limited thereto, and other conductive materials may be used. Furthermore, the composite layer described above may be, for example, a three-layer stacked structure composed of molybdenum, an aluminum-niobium alloy, and molybdenum, but is not limited thereto, as long as the stacked structure capable of achieving a conductive effect is also protected by the present invention. Within the scope. In this embodiment, the touch electrode 140S, the trace 140C, the first axial electrode 140X, the second axial electrode 140Y, the first sub-electrode X1, the first connection line X2, the second sub-electrode Y1, and the first The two connection lines Y2 may be metal meshes, wherein the metal mesh may have a line width between 0.1 micrometers and 20 micrometers, and preferably a width between 1 micrometer and 10 micrometers. The conductive material may include conductive particles, carbon nanotubes or nano-silver, but not limited thereto, and The pattern can be grid-like, such as a conductive grid. For example, the first sub-electrode X1, the second sub-electrode Y1, and the second connection line Y2 of the embodiment may be formed of indium tin oxide, and the first connection line X2 may be formed of a metal conductive material, but Limited.

As shown in FIG. 12, when the first connection line X2 is composed of a bulk metal or a metal mesh, the nano microstructure M on the structural layer 130 can be used to reduce the light reflection phenomenon that may be formed by the first connection line X2. Therefore, the pattern of the first connecting line X2 formed of the metal material when viewed from the second surface 111B of the first substrate 111 is significantly reduced, thereby achieving the purpose of improving the appearance quality of the touch device. In addition, it should be noted that the touch component 140 of the present embodiment can directly contact the nano microstructure M, and the first connection line X2 formed of a metal material under the touch component 140 is directly formed on the nano microstructure. M, so that the plasma strength of the contact surface between the first connecting line X2 and the nano-microstructure M can be increased, so that at least part of the reflected light can be confined without light, thereby reducing the reflected light at a specific angle. effect. It should be noted that the first sub-electrode X1, the first connection line X2, the second sub-electrode Y1, and the second connection line Y2 of the embodiment may be formed by a metal mesh as needed, but are not limited thereto. In addition, the touch element 140 of the present invention is not limited to the type shown in FIG. 5 to FIG. 12, and the types of the touch elements 140 shown in the fifth to twelfth figures are also visible. It needs to be applied to other embodiments of the present invention to be described later.

The different embodiments of the touch device of the present invention are described below, and the following description is mainly for the sake of simplification of the description of the embodiments, and the details are not repeated. In addition, the same elements in the embodiments of the present invention are denoted by the same reference numerals to facilitate the comparison between the embodiments.

Please refer to FIG. 13 , which illustrates a schematic diagram of a touch device 102 according to a second embodiment of the present invention. As shown in FIG. 13 , the touch device 102 of the present embodiment is different from the first embodiment in that the touch device 102 further includes a light shielding layer 160 at least partially disposed on the touch component 140. The structure layer 130 is used to further reduce the visibility of the touch element 140 when viewed from the second surface 111B of the first substrate 111. For example, when the first connecting line X2 is formed of a metal material, the light shielding layer 160 may be disposed between the first connecting line X2 and the structural layer 130, but the invention is not limited thereto. When the first sub-electrode X1 is also formed of a metal material such as a metal mesh, the light shielding layer 160 may also extend between the first sub-electrode X1 and the structural layer 130 to form a shielding effect. The light shielding layer 160 of the present embodiment may include a metal oxide, a black resin, a low reflection metal such as chromium, a low reflection alloy such as a nickel-chromium (Ni-Cr) alloy or other suitable light-shielding material. It should be noted that the light shielding layer 160 may be formed together with the first bonding line X2 by the same film forming process or/and a patterning process (for example, a photolithography process), thereby ensuring that the light shielding layer 160 covers the condition of the first connection line X2. And can achieve the purpose of simplifying the process at the same time. For example, if the first connecting line X2 is made of copper, the copper oxide or the copper alloy oxide may be formed as the light shielding layer 160 in the same film forming process or a separate film forming process; or may be separated. The film-forming process, such as chrome oxide, is stacked as the light-shielding layer 160 before or after the first connection line X2, and other embodiments are also possible, and are not limited thereto.

Please refer to FIG. 14 , which illustrates a schematic diagram of a touch device 103 according to a third embodiment of the present invention. As shown in FIG. 14 , the touch device 103 of the present embodiment is different from the second embodiment in that the light shielding layer 160 of the embodiment may include a first light shielding layer 161 and a second light shielding layer 162 . The first light shielding layer 161 is disposed between the first connection line X2 and the structural layer 130, and the pattern of the first light shielding layer 161 is similar to the first connection line X2. The second light shielding layer 162 is at least partially disposed between the first sub-electrode X1 and the structural layer 130 and at least partially disposed between the second axial electrode 140Y and the structural layer 130 for the first sub-electrode X1 and the second The axial electrode 140Y produces a shielding effect. The second light shielding layer 161 may also be formed together with the first sub-electrode X1 and the second axial electrode 140Y by the same film forming process or/and a patterning process, thereby ensuring that the second light shielding layer 161 covers the first sub-electrode X1 and the first The condition of the two-axis electrode 140Y can simultaneously achieve the purpose of simplifying the process.

Please refer to FIG. 15 , which illustrates a touch device 104 according to a fourth embodiment of the present invention. Schematic diagram. As shown in FIG. 15 , the touch device 104 of the present embodiment is different from the first embodiment in that the first connection line X2 of the embodiment is also disposed on the insulating member 150 as needed, and the first connection line is X2 can span the insulating member 140 for electrically connecting the two adjacent first sub-electrodes X1. In this embodiment, since the first sub-electrode X1 and the second axial electrode 140Y are directly formed on the nano microstructure M, the first sub-electrode X1 and the second axial electrode 140Y are formed by a metal mesh. At the same time, the effect of reducing the apparentness of the pattern can be achieved by the nano microstructure M. In addition, the touch device 104 may further include a light shielding layer 160 disposed between the first connection line X2 and the insulating member 150 for enhancing the effect of shielding the first connection line X2. In addition, when the first sub-electrode X1 and the second axial electrode 140Y are also made of a metal material, it is also possible to selectively provide a light shielding between the first sub-electrode X1 and the second axial electrode 140Y and the structural layer 130. Layer (not shown) to enhance the shadowing effect.

Please refer to FIG. 16, which is a schematic diagram of a touch device 105 according to a fifth embodiment of the present invention. As shown in FIG. 16 , the touch device 105 of the present embodiment is different from the first embodiment in that the insulating member 150 of the present embodiment is provided with a full-face insulating film layer disposed on the first axial electrode 140X and Between the second axial electrodes 140Y, the first axial electrode 140X and the second axial electrode 140Y are electrically isolated. In addition, the touch device 105 can further include a light shielding layer 160 and a protective layer 159. The light shielding layer 160 is disposed between the first axial electrode 140X and the structural layer 130, and the protective layer 159 is disposed above the second axial electrode 140Y.

Please refer to FIG. 17, which is a schematic diagram of a touch device 200 according to a sixth embodiment of the present invention. As shown in FIG. 17, the touch device 200 of the present embodiment is different from the first embodiment in that the structural layer 130 of the present embodiment can cover the decorative layer 120 in the vertical projection direction Z, thereby reducing the structure. The thickness of the layer 130 and the overall thickness of the touch device 200, but the touch element 140 can still achieve the effect of reducing the apparentness of the pattern by overlapping with the nano-micro structure M.

Please refer to FIG. 18, which illustrates a schematic diagram of a touch device 201 according to a seventh embodiment of the present invention. As shown in FIG. 18, the touch device 201 of the present embodiment is different from the sixth embodiment in that the thickness of the decorative layer 120 of the present embodiment is preferably greater than the thickness of the structural layer 130. That is to say, the thickness of the structural layer 130 of the present embodiment can be relatively thin, thereby achieving the effect of reducing the overall thickness of the touch device 201. In addition, the arrangement of the structural layer 130 of the present embodiment can also be used to reduce the difference in terrain height formed by the provision of the decorative layer 120, and to reduce product defects that may occur thereby.

Referring to FIG. 19, FIG. 19 is a schematic diagram of a touch device 300 according to an eighth embodiment of the present invention. As shown in FIG. 19, the touch device 300 of the present embodiment is different from the first embodiment in that the touch device 300 further includes a second substrate 112 and an adhesive layer 170. The second substrate 112 is disposed opposite to the first substrate 111. The second substrate 112 has a third surface 112A and a fourth surface 112B. The third surface 112A is opposite to the fourth surface 112B. The third surface 112A faces the first surface 111A of the first substrate 111, and the touch component The 140 series is at least partially disposed on the third surface 112A of the second substrate 112. The adhesive layer 170 is disposed between the first substrate 111 and the second substrate 112 for bonding the first substrate 111 provided with the structural layer 130 and the second substrate 112 provided with the touch element 140. The adhesive layer 170 may comprise an optical clear adhesive (OCA), a pressure sensitive adhesive (PSA), a liquid optical clear adhesive (LOCA) or other suitable bonding material. The first substrate 111 of the present embodiment is preferably a light-transmitting cover plate, and the second substrate 112 may include a glass substrate, a plastic substrate, a glass film, a plastic film, and a display. The substrate or other suitable substrate, for example, may also be a thin substrate (GFG) and have a thickness of less than or equal to 0.25 mm. It should be noted that, in other embodiments of the present invention, the touch component 140 may be selectively disposed on the fourth surface 112B of the second substrate 112 or the touch component 140 may be partially disposed on the second substrate 112. The third surface 112A is partially disposed on the fourth surface 112B of the second substrate 112, or the touch element 140 may be partially disposed on the first substrate 111 and partially disposed on the second substrate 112.

Please refer to FIG. 20, which illustrates a schematic diagram of a touch device 400 according to a ninth embodiment of the present invention. As shown in FIG. 20, the touch device 400 of the present embodiment is different from the first embodiment in that the touch device 140 of the present embodiment is disposed on the first surface 111A of the first substrate 111 and is in contact with The control element 140 is disposed between the structural layer 130 and the first substrate 111. In addition, the touch device 400 further includes a light-transmitting cover plate 113 and an adhesive layer 170. The light-transmitting cover plate 113 is disposed opposite to the first substrate 111. The light-transmitting cover plate 113 has a fifth surface 113A and a sixth surface 113B. The fifth surface 113A is opposite to the sixth surface 113B, and the fifth surface 113A faces the first surface 111A of the first substrate 111. In addition, the decorative layer 120 of the embodiment may be disposed on the transparent cover plate 113, and the adhesive layer 170 is disposed between the first substrate 111 and the transparent cover plate 113 for bonding the touch element 140 and the structural layer. The first substrate 111 of 130 and the light-transmitting cover plate 113 provided with the decorative layer 120. The structural layer 130 of the present embodiment is disposed between the first substrate 111 and the transparent cover plate 113, and the structural layer 130 having the nano microstructure M is located in the vertical projection direction Z at the touch element 140 and the transparent cover. Between the plates 113. Therefore, when the light passes through the transparent cover plate 113 and the structural layer 130 and enters the touch element 140, if the touch element 140 includes a metal material that is easy to generate light reflection, the nano microstructure on the structural layer 130. The M can be used to reduce the apparent visibility of the touch device 140 on the sixth surface 113B of the transparent cover plate 113, thereby improving the visual effect of the touch device 400.

Please refer to FIG. 21, which shows a schematic diagram of a touch device 401 according to a tenth embodiment of the present invention. As shown in FIG. 21, the touch device 401 of the present embodiment is different from the fourth embodiment in that the touch element 140 of the present embodiment is disposed on the first surface 111A of the first substrate 111, and is touched. The control element 140 is disposed between the structural layer 130 and the first substrate 111. In addition, the touch device 401 further includes a transparent cover plate 113 and an adhesive layer 170. The light-transmitting cover plate 113 is disposed opposite to the first substrate 111. The adhesive layer 170 is disposed between the first substrate 111 and the transparent cover plate 113 for bonding the first substrate 111 provided with the touch element 140 and the underlying structure layer 130, and Light transmissive cover plate 113. When the first connection line X2 of the embodiment is made of a metal material, since the nano microstructure M is overlapped with the first connection line X2, the first connection line X2 can be lowered to the sixth of the transparent cover plate 113. The pattern viewed on the face 113B is noticeable. In addition, it should be noted that the structural layer 130 of the present embodiment can also be formed by using a protective layer generally disposed on the touch element 140, thereby achieving the effect of simplifying the structure and the process.

Please refer to FIG. 22, which shows a schematic diagram of a touch device 402 according to an eleventh embodiment of the present invention. As shown in FIG. 22, the touch device 402 of the present embodiment is different from the ninth embodiment in that the first substrate 111 of the present embodiment can be a substrate of a display 490. Display 490 can include a liquid crystal display, an organic light emitting diode (OLED) display, an electro-wetting display, an electronic ink (e-ink) display, a plasma display, a field emission (FED) display, or the like. Suitable for the display. The first substrate 111 may include a color filter substrate, an active array substrate, a package cover or other suitable substrate. Therefore, the touch device 402 of the present embodiment can be regarded as an on-cell touch display device, but is not limited thereto.

Referring to FIG. 23, FIG. 23 is a schematic diagram of a touch device 403 according to a twelfth embodiment of the present invention. As shown in FIG. 23, the touch device 403 of the present embodiment is different from the eleventh embodiment in that the touch device 403 further includes a display lower substrate 491 and a display medium 492. The display lower plate 491 is disposed opposite to the first substrate 111, and the display medium 492 is disposed between the display lower substrate 491 and the first substrate 111. The touch device 403 of the present embodiment can be regarded as an in-cell touch display device, and the first substrate 111 can be a substrate of the display, such as a color filter substrate, an active array substrate or a package cover. But it is not limited to this.

Please refer to FIG. 24, which shows a schematic diagram of a touch device 404 according to a thirteenth embodiment of the present invention. As shown in FIG. 24, the touch device 404 of the present embodiment is different from the first embodiment in that the nano-micro structure M of the embodiment can only correspond to a portion of the touch element 140. Component settings. For example, when the first connection line X2 is formed of a metal material and the first sub-electrode X1 and the second axial electrode 140Y are formed of a transparent conductive material, the nano-micro structure M may correspond to only the first connection line X2. . That is, the nano-microstructures M may be formed only on a portion of the surface of the structural layer 130, and the touch element 140 may at least partially not overlap the nano-microstructures M in the vertical projection direction Z. With the design of the present embodiment, the nano microstructures M can be formed only in the required regions, and the influence of the nano microstructures M on other light-transmitting regions can be reduced. In other words, at least part of the touch element 140 may not overlap with the nano-micro structure M in the vertical projection direction Z as needed, and the portion of the touch element 140 that is not overlapped with the nano-micro structure M is preferably It is not part of a material with high reflectivity such as metal, but it is not limited to this. Therefore, the nanostructures M of the present invention can be formed only on a part of the surface of the structural layer 130, and the regions each formed with the nanostructures M are separated from each other.

In summary, the touch device of the present invention is configured to form a nano-structure on a structure layer overlapping the touch element, and the nano-structure can scatter or suppress the light generated by the touch element. The effect is to achieve the purpose of improving the appearance quality of the touch device. In addition, the present invention further utilizes the light shielding layer and the nano microstructure to achieve the effect of further reducing the pattern visibility of the touch element.

The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

101‧‧‧ touch device

111‧‧‧First substrate

111A‧‧‧ first side

111B‧‧‧ second side

120‧‧‧decorative layer

130‧‧‧Structural layer

130S‧‧‧ rough surface

140‧‧‧Touch components

M‧‧ nm nanostructure

Z‧‧‧Vertical projection direction

Claims (26)

A touch device includes: a first substrate having a first surface and a second surface, wherein the first surface is opposite to the second surface; and a structural layer is disposed on the first surface of the first substrate The surface layer has a roughened surface, the roughened surface is opposite to the first substrate, and the roughened surface includes a plurality of nano microstructures; and a touch component, wherein the touch component is And at least partially overlapping the nano microstructures in a vertical projection direction perpendicular to the first substrate. The touch device of claim 1, wherein a distance between two adjacent apexes of the nano microstructures is between 90 nm and 900 nm. The touch device of claim 1, wherein two adjacent nano microstructures have a connection point, and a highest point of one of the adjacent nano microstructures is connected to the connection point There is a height between the points, and the height is between 90 nm and 900 nm. The touch device of claim 1, wherein the distance between the highest point and the lowest point of the nano microstructures in the vertical projection direction is between 90 nm and 900 nm. The touch device of claim 1, wherein the nano microstructures are disposed in connection with each other. The touch device of claim 1, wherein the structural layer comprises an organic material, an inorganic material or an organic-inorganic composite material. The touch device of claim 1, wherein the structural layer has a refractive index between 1.35 and 2. The touch device of claim 1, wherein the touch element is disposed on the roughened surface of the structural layer. The touch device of claim 1, further comprising a decorative layer disposed on the first substrate, the first substrate being a transparent cover plate. The touch device of claim 9, wherein the thickness of the decorative layer is less than the thickness of the structural layer degree. The touch device of claim 9, wherein the decorative layer has a thickness greater than a thickness of the structural layer. The touch device of claim 9, wherein the decorative layer is disposed on the first surface of the first substrate. The touch device of claim 12, wherein the decorative layer is at least partially disposed between the structural layer and the first substrate. The touch device of claim 1, further comprising a second substrate disposed opposite to the first substrate, wherein the second substrate has a third surface and a fourth surface, the third surface and the third surface The third surface faces the first surface of the first substrate, and the touch component is at least partially disposed on the third surface of the second substrate. The touch device of claim 1 , wherein the touch component is disposed on the first surface of the first substrate, and the touch component is disposed between the structural layer and the first substrate. The touch device of claim 15 further comprising a light-transmitting cover plate disposed opposite the first substrate, wherein the structural layer is disposed between the first substrate and the light-transmitting cover plate. The touch device of claim 16, further comprising a decorative layer disposed on the transparent cover plate. The touch device of claim 1 further comprising a light shielding layer disposed at least partially between the touch element and the structural layer. The touch device of claim 1, wherein the touch element comprises at least one metal layer or at least one metal grid, wherein the metal grid has a line width, and the line width is between 0.1 micrometer and 10 micrometers. between. The touch device of claim 1, wherein the touch element comprises a plurality of touch electrodes electrically insulated from each other. The touch device of claim 20, wherein the touch electrodes comprise at least one touch signal driving electrode and at least one touch signal receiving electrode. The touch device of claim 1, wherein the touch component comprises: At least one first axial electrode extending along a first direction; and at least one second axial electrode extending along a second direction, wherein the second axial electrode is electrically connected to the first axial electrode insulation. The touch device of claim 22, wherein the first axial electrode comprises a plurality of first sub-electrodes and at least one first connecting line is disposed between the two adjacent first sub-electrodes, the first The connecting line electrically connects the two adjacent first sub-electrodes, the second axial electrode includes a plurality of second sub-electrodes, and the at least one second connecting line is disposed between the two adjacent second sub-electrodes The second connecting line is electrically connected to the two adjacent second sub-electrodes. The touch device of claim 1, wherein the first substrate comprises a glass substrate, a plastic substrate, a glass film, a plastic film, a light-transmissive cover plate or a display substrate. The touch device of claim 1, wherein the structural layer has a thickness between 200 nm and 10 microns. The touch device of claim 1, wherein at least a portion of the touch elements are not overlapped with the nano microstructures in the vertical projection direction.