TW201545027A - Touch panel and touch display apparatus - Google Patents

Abstract

A touch panel and a touch display apparatus including the touch panel and a display panel are provided. The touch panel includes a first touch electrode layer and a second touch electrode layer. The first touch electrode layer has a plurality of first axial electrodes disposed and extending along a first direction and material of the first touch electrode layer includes metal nanowire. The second touch electrode layer has a plurality of second axial electrodes disposed and extending along a second direction. The second axial electrodes are electrically isolated from the first axial electrodes, and the first touch electrode layer is disposed between the second touch electrode layer and an observer.

Description

Touch panel and touch display device

The present invention relates to a touch panel and a touch display device, and more particularly to a touch panel and a touch display device having a nanowire.

In recent years, with the rapid development and wide application of information technology, wireless communication and information appliances, the operation interface of many information products has been changed from a traditional keyboard or mouse to a touch panel as an input device, and often combined with a display device. As a touch display device. Common touch panels can be roughly divided into capacitive touch panels and resistive touch panels. Capacitive touch panels are attracting attention because of their multi-touch characteristics. Generally, the capacitive touch panel has a plurality of sensing electrode patterns, and when the user approaches or touches the surface of the capacitive touch panel with a finger or a conductive object, the capacitance values of the sensing electrode patterns may occur. Corresponding changes. The capacitive touch panel utilizes such a change in capacitance value to sense and calculate the touch position.

However, the current capacitive touch panel mostly uses a transparent conductive material or a metal mesh as a material of the sensing electrode pattern. However, the production cost of a transparent conductive material such as indium tin oxide (ITO), indium zinc oxide (IZO), and aluminum zinc oxide (AZO) Processes that are higher and whose impedance reduction is more difficult or have lower impedance are more restrictive. For example, high temperature indium tin oxide with low impedance is less likely to be fabricated directly on a film substrate (ex:PET). In other words, the use of a transparent conductive material as a material of the sensing electrode pattern is not easy to achieve low impedance characteristics, and it is not possible to provide better touch sensitivity of the touch panel.

On the other hand, when the ambient light illuminates the touch panel, the sensing electrode patterns reflect the ambient light and are observed by the user, thereby affecting the picture quality and display effect of the touch display device. In addition, the sensing electrode pattern made of the metal mesh has a high reflectivity due to the metal reflection phenomenon, and thus is more likely to affect the picture quality and display effect of the touch display device, and thus may cause a morie phenomenon.

The present invention provides a touch panel that helps reduce the chance that ambient light will penetrate the touch panel and be reflected to the user's eyes.

The invention provides a touch display device with good display effect.

The touch panel of the present invention includes a first touch electrode layer and a second touch electrode layer. The first touch electrode layer has a plurality of first axial electrodes extending along a first direction, and the material of the first touch electrode layer comprises a nano metal wire. The second touch electrode layer has a plurality of second axial electrodes extending along a second direction. The second axial electrodes are electrically insulated from the first axial electrodes, and the first touch electrode layer is located between the second touch electrode layer and an observer.

The touch display device of the present invention includes a display device and a touch The second touch electrode layer is disposed between the display device and the first touch electrode layer.

Based on the above, the touch display device and the touch panel of the present invention can help reduce the ambient light from penetrating the touch panel and being reflected to the use by the arrangement of the first touch electrode layer having the nanowire. The probability of the eyes. In this way, the touch display device can also be less susceptible to ambient light, and thus exhibits a good display effect.

The above described features and advantages of the invention will be apparent from the following description.

10, 40, 50, 60, 70‧‧‧ touch panels

11, 61‧‧ ‧ cover board

12, 62‧‧‧ first adhesive layer

13, 63, 73‧‧‧ first touch electrode layer

13X‧‧‧first axial electrode

14, 64‧‧‧ first substrate

15‧‧‧Second Adhesive Layer

16, 46, 56, 66‧‧‧ second touch electrode layer

16Y‧‧‧second axial electrode

17‧‧‧Second substrate

18, 68‧‧‧ third adhesive layer

19‧‧‧Optical matching layer

100, 400, 500, 600, 700‧‧‧ touch display devices

110‧‧‧ display device

AR‧‧‧Anti-reflective layer

LA‧‧‧ strip area

LS‧‧‧ strip opening

DU‧‧‧Dummy electrode

PE‧‧‧ resin layer

CA‧‧‧ groove

S1‧‧‧ first side

S2‧‧‧ second side

X‧‧‧ first direction

Y‧‧‧second direction

Z‧‧‧ direction

EL‧‧‧Wiring

FIG. 1A is a schematic cross-sectional view of a touch display device according to an embodiment of the invention.

FIG. 1B is a front elevational view of the touch panel of FIG. 1A.

2A is a schematic diagram of a first touch electrode layer of FIG. 1A.

2B is a schematic diagram of another first touch electrode layer of FIG. 1A.

Figure 3 is a schematic illustration of an optical matching layer of Figure 1A.

4 is a cross-sectional view of a touch display device according to another embodiment of the present invention.

FIG. 5 is a cross-sectional view of a touch display device according to still another embodiment of the present invention.

FIG. 6 is a cross-sectional view of a touch display device according to still another embodiment of the present invention.

FIG. 7 is a cross-sectional view of a touch display device according to another embodiment of the present invention.

1A is a cross-sectional view of a touch display device according to an embodiment of the invention intention. FIG. 1B is a front elevational view of the touch panel of FIG. 1A. Referring to FIG. 1A , in the embodiment, the touch display device 100 includes a touch panel 10 and a display device 110 . The touch panel 10 is disposed on the display device 110. For example, in the embodiment, the touch panel 10 includes a cover plate 11 , a first adhesive layer 12 , a first touch electrode layer 13 , a first substrate 14 , and a second adhesive layer 15 . A second touch electrode layer 16, a second substrate 17, and a third adhesive layer 18. In this embodiment, the cover plate 11 is, for example, a glass cover plate, a sapphire cover plate, a plastic cover plate, a hard cover plate or a soft cover plate. The cover plate 11 may be protected by a high mechanical strength material, covered or beautified. It corresponds to the cover plate of the device. When the cover plate 11 is a glass substrate, the glass substrate may be a chemically or physically strengthened tempered glass. For example, the cover plate may have an ion exchange layer on all surfaces, or only the edge surface does not have an ion exchange layer, but The micro-crack is removed by a polishing or etching process, and the edge-strength coating is applied and cured, such as UV glue, as appropriate, thereby having high mechanical strength and edge strength to protect the touch panel 10 The display device 110, and the cover plate 11 may have a thickness of between 0.2 mm and 2 mm. In addition, the cover plate 11 may be a planar shape or a curved shape or a combination of the foregoing, such as 2.5D glass, or both surfaces are curved shapes, such as 3D glass. But it is not limited to this.

Specifically, as shown in FIG. 1A , in the embodiment, the first touch electrode layer 13 is located between the second touch electrode layer 16 and the cover plate 11 , and the second touch electrode layer 16 is located at the first base. Between the material 14 and the second substrate 17. In detail, the first substrate 14 is disposed on the first touch electrode layer 13 , wherein the first touch electrode layer 13 is disposed on the first substrate 14 and is located on the second touch electrode layer 16 and an observation layer The second touch electrode layer 16 is disposed on the surface of the second substrate 17 facing the first touch electrode layer 13 , that is, disposed between the display device 110 and the first touch electrode layer 13 .

In addition, as shown in FIG. 1A, in the embodiment, the first adhesive layer 12, the second adhesive layer 15, and the third adhesive layer 18 are, for example, Optically Clear Adhesives (OCA), and the first adhesive layer 12 is disposed on Between the cover plate 11 and the first substrate 14 , the second adhesive layer 15 is disposed between the first substrate 14 and the second substrate 17 , and the third adhesive layer 18 is disposed on the touch panel 10 and the display device 110 . The cover sheet 11 for bonding the touch panel 10, the first substrate 14, the second substrate 17, and the display device 110 are interposed.

In more detail, as shown in FIG. 1B, in the embodiment, the first touch electrode layer 13 has a plurality of first axial electrodes 13X extending along a first direction X. The second touch electrode layer 16 has a plurality of second axial electrodes 16Y extending along a second direction Y. These second axial electrodes 16Y are electrically insulated from these first axial electrodes 13X. The first direction X is preferably substantially perpendicular to the second direction Y, but is not limited thereto. In addition, the touch panel 10 further includes a plurality of traces EL, and each of the traces EL is electrically connected to a corresponding touch electrode, for example, to perform touch detection, but This is limited to this.

It should be noted that, in this embodiment, the material of the first touch electrode layer 13 The material includes a nanowire (herein, a nanosilver wire) and a resin body for dispersing the nanowire, and the second touch electrode layer 16 is a transparent conductive material layer or a conductive mesh layer. . For example, the second touch electrode layer 16 may be respectively made of a transparent conductive material such as indium tin oxide (ITO), indium zinc oxide (IZO), and aluminum zinc oxide (AZO). , a metal, a transparent conductive material and a composite layer of metal or other suitable conductive material. The metal may include a metal material such as at least one of aluminum, copper, silver, chromium, titanium, molybdenum, a composite layer of the above materials, or an alloy of the above materials, but is not limited thereto, and the type may be a line. The width is, for example, a grid of 0.5 to 10 micrometers, such as a metal grid. The above conductive material may include conductive particles, carbon nanotubes, graphene or decene, but is not limited thereto, and its type may be a grid shape, such as a conductive mesh.

Further, in the present embodiment, since the nanosilver material has a high wire diameter ratio and a small radius, scattering (diffuse reflection) is generated when ambient light hits the nanosilver. In other words, in the embodiment, the first touch electrode layer 13 has a haze. Thus, the first touch electrode layer 13 closer to the observer includes a nano silver material, and the second touch electrode layer 16 farther from the observer is made of a metal oxide or a conductive mesh layer. The ambient light that is incident on the touch panel 10 can be scattered by the nanowires of the first touch electrode layer 13 when the ambient light that is incident on the touch panel 10 is reflected by the respective electrode patterns in the second touch electrode layer 16 . In this way, it is possible for the observer to easily observe the electrode pattern in the touch panel 10 and make the touch display device 100 good. Good picture quality and display effect. In addition, in the present embodiment, the haze of the first touch electrode layer 13 can be appropriately increased, so that the risk of the electrode pattern in the touch panel 10 being observed or generating a morie phenomenon can be more avoided. For example, in this embodiment, the haze of the first touch electrode layer 13 may be greater than 1, preferably, the haze may be greater than 1.2, and more preferably, the haze may be greater than 1.5. It should be noted that the haze of the first touch electrode layer 13 is too large, which may cause image blurring. Therefore, the haze is preferably less than 3 and preferably less than 2. From another point of view, the sheet resistance of the first touch electrode layer 13 may be less than 150 Ω/□, preferably less than 100 Ω/□, and most preferably less than 75 Ω/□. The unit of the sheet resistance can also be expressed as Ω/square or Ω per square.

In addition, in this embodiment, since the first touch electrode layer 13 is made of nanometer The silver wire material is formed. Therefore, even if the second touch electrode layer 16 is formed by using a transparent conductive material such as a metal oxide, the electrode pattern of the touch panel 10 does not need to use all metal oxides (for example, indium tin oxide). Reduce production costs. In addition, when the second touch electrode layer 16 is a conductive mesh layer, the light reflected by the metal mesh through the conductive mesh layer can be reduced by the first touch electrode layer 13 having the nano silver material. The possibility to the observer's eyes, and thus the generation of the morie phenomenon, does not require the design of the metal grid pattern.

Moreover, when the second touch electrode layer 16 is a conductive mesh layer, it is electrically conductive. The metal mesh of the mesh layer has a low impedance characteristic. Therefore, the second axial electrode 16Y of the second touch electrode layer 16 can be used as the touch signal driving electrode (Tx) of the touch panel 10. On the other hand, although the impedance of the first touch electrode layer 13 is inversely proportional to its haze, the impedance of the touch sensing electrode (Rx) of the touch panel 10 to the electrode is The first axial electrode 13X of the first touch electrode layer 13 can be used as the touch signal sensing electrode (Rx) of the touch panel 10, and can be used as the second The axial electrodes 16Y are matched to each other for mutual capacitive touch detection, but the invention is not limited thereto.

In addition, in the embodiment, the touch panel 10 can also further include an anti-reflection layer AR such as an oxidized metal layer or an optically stacked film layer (for example, titanium dioxide, hafnium oxide, tantalum nitride, hafnium oxynitride, The tantalum aluminum oxide or any stacked layer of the above materials is disposed on the second touch electrode layer 16 to reduce the reflectivity of the second touch electrode layer 16. It is to be noted that although the anti-reflection layer AR in FIG. 1A is represented by a continuous surface, it is not limited thereto, and may be disposed corresponding to the second touch electrode layer 16, for example. In this embodiment, when the second touch electrode layer 16 is a conductive mesh layer, the electrode pattern may be a regular pattern or an irregular pattern. Preferably, the electrode of the second touch electrode layer 16 is used. The pattern can be an irregular pattern, which is advantageous for avoiding the occurrence of a morie phenomenon.

2A is a schematic diagram of a first touch electrode layer of FIG. 1A. 2B is a schematic diagram of another first touch electrode layer of FIG. 1A. Referring to FIG. 2A, in the embodiment, the first touch electrode layer 13 has a plurality of strip openings LS and a plurality of dummy electrodes DU, and the dummy electrodes DU are disposed in the strip openings LS to enable A large area shields the pattern of the second touch electrode layer 16. Moreover, it is preferable that the width of the strip-shaped opening LS between the dummy electrode DU and the first axial electrode 13X is less than 30 micrometers (um), but the invention is not limited thereto, for example, the opening is not limited to the strip. shape. In another embodiment, as shown in FIG. 2B, the first touch electrode layer 13 has a plurality of The strip regions LA, but not limited to strips, may optionally have no dummy electrodes DU, but electrically insulate adjacent two strip regions LA from each other by, for example, etching. In other words, in this embodiment, the first touch electrode layer 13 can form a plurality of first axial electrodes 13X without the strip-shaped opening LS, and thereby can shield the second touch with a larger area. The pattern of the electrode layer 16 is controlled, thereby making it difficult for the observer to observe the electrode pattern in the touch panel 10, and the touch display device 100 has good picture quality and display effect.

Figure 3 is a schematic illustration of an optical matching layer of Figure 1A. Referring to FIG. 3 , in the embodiment, the touch panel 10 can further include an optical matching layer 19 having a high refractive index covering the first touch electrode layer 13 to avoid the first touch. The haze of the control electrode layer 13 is too high to affect the picture quality and display effect of the touch display device 100. For example, in this embodiment, the refractive index of the optical matching layer 19 is greater than the refractive index of the first touch electrode layer 13 covered by the first touch electrode layer 13 , and the refractive index of the first touch electrode layer 13 is greater than the first touch electrode. The refractive index of the substrate 14 covered by the layer 13. In detail, the optical matching layer 19 may be greater than 1.55. Preferably, the refractive index of the optical matching layer 19 may be greater than 1.7, and the refractive index of the first touch electrode layer 13 may be between 1.5 and 1.65. The refractive index can range from 1.45 to 1.55. In addition, in the embodiment, the optical matching layer 19 can also be used as a passivation layer. The above situation is taken as an example in which the optical matching layer 19 is close to the human eye; in other embodiments, if the optical matching layer is away from the human eye, that is, from the near to the far side of the human eye, the substrate and the first touch electrode layer are sequentially arranged. And the optical matching layer (or protective layer), the refractive index matching of the stacked structure is preferably from large to small, for example, the refractive index of the substrate can be 1.6, and the touch electrode layer is folded. The incident rate may be 1.55, and the refractive index of the optical matching layer or the protective layer may be 1.5, but not limited thereto.

4 is a cross-sectional view of a touch display device according to another embodiment of the present invention; intention. Referring to FIG. 4 , the touch display device 400 of the present embodiment is similar to the touch display device 100 of FIG. 1A , and the differences are as follows. In the embodiment, the second touch electrode layer 46 is buried on the surface of the second substrate 17 . In this embodiment, the touch display device 400 and the touch panel 40 can also be made of a metal oxide or a conductive mesh by using the first touch electrode layer 13 and the second touch electrode layer 46 including the nano silver material. When the ambient light incident on the touch panel 40 is reflected by the electrode patterns in the second touch electrode layer 46, the grid layer can be scattered through the nanowire of the first touch electrode layer 13. . In this way, the electrode pattern in the touch panel 40 can be easily observed by the observer, and the touch display device 400 can have good picture quality and display effect. In other words, the touch display device 400 and the touch panel 40 can achieve similar effects as the touch display device 100 and the touch panel 10, and have the advantages mentioned in the touch display device 100 and the touch panel 10, This will not be repeated.

FIG. 5 is a cross-sectional view of a touch display device according to still another embodiment of the present invention. Referring to FIG. 5 , the touch display device 500 of the present embodiment is similar to the touch display device 100 of FIG. 1A , and the differences are as follows. In this embodiment, the touch panel 50 further includes a resin layer PE between the first substrate 14 and the second substrate 17, and the second touch electrode layer 56 is embedded in the resin layer PE. For example, in the embodiment, the resin layer PE has a plurality of grooves CA, and the second axial electrodes 56Y of the second touch electrode layer 56 are respectively located in the grooves CA. However, the invention is not limited The depth of the groove CA. In other words, in another embodiment, the recesses CA may also penetrate the resin layer PE such that the second axial electrodes (not shown) of the second touch electrode layer 56 are in contact with the second substrate 17 .

In addition, in the present embodiment, the touch display device 500 and the touch panel 50 can also use metal oxide or the first touch electrode layer 13 and the second touch electrode layer 56 including the nano silver material. The combination of the conductive mesh layers is such that when the ambient light incident on the touch panel 50 is reflected by the electrode patterns in the second touch electrode layer 56, the nanowires of the first touch electrode layer 13 can be used. Scattered. In this way, the electrode pattern in the touch panel 50 is not easily observed by the observer, and the touch display device 500 has good picture quality and display effect. In other words, the touch display device 500 and the touch panel 50 can achieve similar effects to the touch display device 100 and the touch panel 10, and have the advantages mentioned in the touch display device 100 and the touch panel 10, This will not be repeated.

In addition, the foregoing embodiment is exemplified by the side of the first touch electrode layer 13 disposed on the first substrate 14 facing the cover plate 11, but the invention is not limited thereto. In another embodiment, the first touch electrode layer 13 can be disposed on the side of the first substrate 14 facing the second substrate 17 to be closer to the display device 110, and can be more capable. The risk of affecting the picture quality and display effect of the touch display device 100 due to the excessive haze of the first touch electrode layer 13 is avoided. In addition, the present invention does not limit the second touch electrode layer 16 , 46 , 56 to be located on the side of the second substrate 17 facing the first substrate 14 . In another embodiment, the second touch The electrode layers 16, 46, 56 may also be located on the side of the second substrate 17 facing the display device 110, and will not be described herein.

6 is a cross-sectional view of a touch display device according to still another embodiment of the present invention; intention. Referring to FIG. 6 , the touch display device 600 of the present embodiment is similar to the touch display device 100 of FIG. 1A , and the differences are as follows. In this embodiment, the touch panel 60 includes a cover 61, a first adhesive layer 62, a first touch electrode layer 63, a first substrate 64, a second touch electrode layer 66, and a first Three adhesive layers 68. Specifically, in the embodiment, the first substrate 64 is disposed facing the first touch electrode layer 63, wherein the first substrate 64 has a first surface S1 facing the first touch electrode layer 63 and a relative On the second surface S2 of the first surface S1 , the first touch electrode layer 63 is disposed on the cover plate 61 , and the second touch electrode layer 66 is disposed on the second surface S2 of the first substrate 64 . The first adhesive layer 62 is disposed between the cover sheet 61 and the first substrate 64. In other words, in the embodiment, the touch panel 60 adopts a single-chip single-layer structure (G1F).

In addition, in the present embodiment, the touch display device 600 and the touch panel 60 can also use metal oxide or the first touch electrode layer 63 and the second touch electrode layer 66 including the nano silver material. The combination of the conductive mesh layers is such that when ambient light incident on the touch panel 60 is reflected by the electrode patterns in the second touch electrode layer 66, the nanowires of the first touch electrode layer 63 can be used. Scattered. In this way, the electrode pattern in the touch panel 60 can be easily observed by the observer, and the touch display device 600 can have good picture quality and display effect. In other words, the touch display device 600 and the touch panel 60 can achieve similar effects as the touch display device 100 and the touch panel 10, and have the advantages mentioned in the touch display device 100 and the touch panel 10, This will not be repeated.

FIG. 7 is a cross-sectional view showing a touch display device according to another embodiment of the present invention; intention. Referring to FIG. 7 , the touch display device 700 of the present embodiment is similar to the touch display device 600 of FIG. 6 , and the differences are as follows. In this embodiment, the first touch electrode layer 73 is disposed on the first surface S1 of the first substrate 64, and the second touch electrode layer 66 is disposed on the second surface S2 of the first substrate 64. . In this embodiment, the touch display device 700 and the touch panel 70 can also be made of a metal oxide or a conductive mesh by using the first touch electrode layer 73 and the second touch electrode layer 66 including the nano silver material. When the ambient light incident on the touch panel 70 is reflected by the electrode patterns in the second touch electrode layer 66, the grid layer can be scattered through the nano metal lines of the first touch electrode layer 73. . In this way, the electrode pattern in the touch panel 70 can be hardly observed by the observer, and the touch display device 700 has good picture quality and display effect. In other words, the touch display device 700 and the touch panel 70 can achieve the same effects as the touch display device 600 and the touch panel 60, and have the advantages mentioned in the touch display device 600 and the touch panel 60. This will not be repeated.

In addition, in the foregoing embodiments, the touch panel 10, 40, 50, 60, The substrate or/and the adhesive material between the two axial electrodes in 70 may be replaced by an insulating layer disposed between the first axial electrode 13X and the second axial electrode 16Y for electrically isolating the first axial direction. The electrode 13X and the second axial electrode 16Y, wherein the insulating layer may be an organic or inorganic insulating material, so the thickness thereof is generally lower than the thickness of the substrate, for example, less than 100 micrometers, preferably less than 50 micrometers, and most preferably less than 30 micrometers. It is worth mentioning that, because the line width of the nano-silver wire is quite thin, even if the two-axis electrode is separated by a small thickness of the insulating layer or a substrate having a small thickness, the capacitive load is not too large, and the conductive is used. This is especially true for the grid layer. In the foregoing embodiments, the first substrate 64 can also be used as For the purpose of the insulating layer, the first axial electrode and the second axial electrode may be respectively disposed on opposite sides of the first substrate 64 (as shown in FIG. 6 or FIG. 7 ) to form the touch panel 60 . 70. Alternatively, the first axial electrode 13X and the second axial electrode 16Y are respectively formed on the first substrate 14 or the second substrate 17, and the two substrates 14 and 17 are bonded together to form a touch panel. 10, 40, 50 (as shown in Figure 1A, Figure 4 or Figure 5).

In summary, the touch display device and the touch panel of the present invention can help reduce ambient light penetration through the touch panel and be reflected by the arrangement of the first touch electrode layer having a nanowire. The probability of reaching the user's eyes. In this way, the touch display device can also be less susceptible to ambient light, and thus exhibits a good display effect.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and any one of ordinary skill in the art can make some changes and refinements without departing from the spirit and scope of the present invention. The scope of the invention is defined by the scope of the appended claims.

10‧‧‧Touch panel

11‧‧‧ Covering board

12‧‧‧First adhesive layer

13‧‧‧First touch electrode layer

14‧‧‧First substrate

15‧‧‧Second Adhesive Layer

16‧‧‧Second touch electrode layer

17‧‧‧Second substrate

18‧‧‧ third adhesive layer

100‧‧‧Touch display device

110‧‧‧ display device

AR‧‧‧Anti-reflective layer

X‧‧‧ first direction

Y‧‧‧second direction

Z‧‧‧ direction

Claims (43)

A touch panel includes: a first touch electrode layer having a plurality of first axial electrodes extending along a first direction; and the material of the first touch electrode layer comprises a nanowire; and The second touch electrode layer has a plurality of second axial electrodes extending along a second direction, wherein the second axial electrodes are electrically insulated from the first axial electrodes, and the first touch The electrode layer is located between the second touch electrode layer and an observer. The touch panel of claim 1, further comprising a cover plate, wherein the first touch electrode layer is located between the second touch electrode layer and the cover plate. The touch panel of claim 2, further comprising: a first substrate facing the first touch electrode layer, wherein the first substrate has a first touch electrode layer facing The first touch electrode layer is disposed on the cover plate, and the second touch electrode layer is disposed on the first substrate. The second surface; and a first adhesive layer disposed between the cover plate and the first substrate. The touch panel of claim 2, further comprising: a first substrate facing the first touch electrode layer, wherein the first substrate has a first touch electrode layer facing The first touch electrode layer is disposed on the first surface, and the second touch electrode layer is disposed on the second surface And a first adhesive layer disposed between the cover sheet and the first substrate. The touch panel of claim 2, further comprising: a first substrate disposed facing the first touch electrode layer, wherein the first touch electrode layer is disposed on the first substrate a first adhesive layer disposed between the cover plate and the first substrate; a second substrate, wherein the second touch electrode layer is located between the first substrate and the second substrate And a second adhesive layer disposed between the first substrate and the second substrate. The touch panel of claim 5, wherein the second touch electrode layer is located on a surface of the second substrate facing the first touch electrode layer. The touch panel of claim 5, wherein the second touch electrode layer is embedded on a surface of the second substrate. The touch panel of claim 5, further comprising a resin layer between the first substrate and the second substrate, wherein the second touch electrode layer is embedded in the resin layer. The touch panel of claim 1, wherein the first touch electrode layer has a haze greater than one. The touch panel of claim 9, wherein the first touch electrode layer has a haze greater than 1.2. The touch panel of claim 10, wherein the first touch electrode layer has a haze greater than 1.5. The touch panel of claim 1, wherein the first touch electrode layer has a sheet resistance of less than 150 Ω/□. The touch panel of claim 12, wherein the first touch electrode layer has a sheet resistance of less than 100 Ω/□. The touch panel of claim 13, wherein the first touch electrode layer has a sheet resistance of less than 75 Ω/□. The touch panel of claim 1, wherein the second touch electrode layer is a transparent conductive material layer or a metal mesh layer. The touch panel of claim 1, wherein the first touch electrode layer has a plurality of openings and a plurality of dummy electrodes, and the dummy electrodes are disposed in the openings. The touch panel of claim 1, wherein the first touch electrode layer has a plurality of regions, and adjacent ones of the regions are electrically insulated from each other. The touch panel of claim 1, further comprising an optical matching layer covering the first touch electrode layer. The touch panel of claim 18, wherein the optical matching layer has a refractive index greater than 1.55. The touch panel of claim 1, further comprising an anti-reflection layer on the second touch electrode layer. The touch panel of claim 1, further comprising an insulating layer disposed between the first axial electrodes and the second axial electrodes for electrically isolating the first axes The electrode and the second axial electrodes. A touch display device includes: a display device; A touch panel includes: a first touch electrode layer having a plurality of first axial electrodes extending along a first direction; and the material of the first touch electrode layer comprises a nanowire; and The second touch electrode layer has a plurality of second axial electrodes extending along a second direction, wherein the second axial electrodes are electrically insulated from the first axial electrodes, and the first touch electrodes The layer is located between the second touch electrode layer and an observer, and the second touch electrode layer is disposed between the display device and the first touch electrode layer. The touch display device of claim 22, wherein the touch panel further comprises a cover plate, and the first touch electrode layer is located between the second touch electrode layer and the cover plate. The touch display device of claim 23, wherein the touch panel further comprises: a first substrate disposed facing the first touch electrode layer, wherein the first substrate has a surface facing a first touch electrode layer is disposed on the cover plate, and the second touch electrode layer is disposed on the first surface of the first touch electrode layer and the second surface opposite to the first surface The second surface of the first substrate; and a first adhesive layer disposed between the cover sheet and the first substrate. The touch display device of claim 23, wherein the touch panel further comprises: a first substrate disposed facing the first touch electrode layer, wherein the first substrate The first touch electrode layer is disposed on the first surface, and the second touch surface is disposed on the first surface of the first touch electrode layer and the second surface opposite to the first surface The electrode layer is disposed on the second surface; and a first adhesive layer is disposed between the cover plate and the first substrate. The touch display device of claim 23, wherein the touch panel further comprises: a first substrate disposed facing the first touch electrode layer, wherein the first touch electrode layer is disposed On the first substrate; a first adhesive layer disposed between the cover plate and the first substrate; a second substrate, wherein the second touch electrode layer is located on the first substrate and the Between the second substrates; and a second adhesive layer disposed between the first substrate and the second substrate. The touch display device of claim 26, wherein the second touch electrode layer is located on a surface of the second substrate facing the first touch electrode layer. The touch display device of claim 26, wherein the second touch electrode layer is embedded on a surface of the second substrate. The touch display device of claim 26, wherein the touch panel further comprises a resin layer between the first substrate and the second substrate, and the second touch electrode layer is buried In the resin layer. The touch display device of claim 22, wherein the first touch electrode layer has a haze greater than one. The touch display device according to claim 30, wherein the A touch electrode layer has a haze greater than 1.2. The touch display device of claim 31, wherein the first touch electrode layer has a haze greater than 1.5. The touch display device of claim 22, wherein the first touch electrode layer has a sheet resistance of less than 150 Ω/□. The touch display device of claim 33, wherein the first touch electrode layer has a sheet resistance of less than 100 Ω/□. The touch display device of claim 34, wherein the first touch electrode layer has a sheet resistance of less than 75 Ω/□. The touch display device of claim 22, wherein the second touch electrode layer is a transparent conductive material layer or a conductive mesh layer. The touch display device of claim 22, wherein the first touch electrode layer has a plurality of openings and a plurality of dummy electrodes, and the dummy electrodes are disposed in the openings. The touch display device of claim 22, wherein the first touch electrode layer has a plurality of regions, and adjacent ones of the regions are electrically insulated from each other. The touch display device of claim 22, wherein the touch panel further comprises an optical matching layer overlying the first touch electrode layer. The touch display device of claim 39, wherein the optical matching layer has a refractive index greater than 1.55. The touch display device of claim 22, wherein the touch panel further comprises an anti-reflection layer on the second touch electrode layer. The touch display device of claim 22, wherein the touch panel further comprises a third adhesive layer disposed between the touch panel and the display device. The touch display device of claim 22, wherein the touch panel further comprises an insulating layer disposed between the first axial electrodes and the second axial electrodes for electrical The first axial electrodes and the second axial electrodes are isolated.