TWI582655B - Touch panel and touch display device - Google Patents

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 alignment marks disposed in a sensing area or a wiring area.

Since the touch panel has the characteristics of human-computer interaction, it has gradually replaced the keyboard and is widely used in the input interface of an electronic device. In recent years, as the application of consumer electronic products has become more and more widespread, more and more applications have been combined to form touch display devices by combining touch panels and displays, including mobile phones and satellite navigation. System (GPS navigator system), tablet PC (tablet PC), and laptop (laptop PC). The technology development of touch display devices is very diverse, and since the requirements for efficient use efficiency of electronic display products in the display area of the screen are constantly increasing, touch display devices having narrow frames are continuously introduced. In the conventional touch display device, the frame area is a space for designing each component wiring and alignment mark, but in the case where the frame area is continuously reduced, how to set the component wiring and the alignment mark becomes Important issues that the industry needs to address.

One of the main purposes of the present invention is to provide a touch panel and a touch display device that utilize the effect of setting a registration mark in a sensing area or a routing area to achieve a narrow border.

To achieve the above objective, the present invention provides a touch panel including a substrate, a sensing electrode layer, a conductive material layer, and at least two alignment marks. The surface of the substrate defines a sensing area and a routing area, wherein the routing area is disposed on at least one outer side of the sensing area. The sensing electrode layer is disposed on the surface of the substrate, and the sensing electrode layer includes a plurality of sensing electrodes, wherein the sensing electrodes are disposed at least side by side in the sensing region. The conductive material layer is disposed on the surface of the substrate, and the conductive material layer includes a plurality of traces at least in the trace region and electrically connected to at least one of the sensing electrodes. The alignment mark is disposed in the sensing electrode layer or the conductive material layer.

To achieve the above, the present invention further provides a touch display device, including the touch panel and a display panel, wherein the display panel is disposed on one side of the touch panel, and the display panel includes a display area.

To achieve the above objective, the present invention further provides a touch display device including a touch panel and a display panel. The touch panel includes a substrate, a sensing electrode layer, a conductive material layer, and a decorative layer. The surface of the substrate defines a sensing area and a routing area. The routing area is disposed on at least one outer side of the sensing area, and the intersection between the routing area and the sensing area. The sensing electrode layer is disposed on the surface of the substrate, and includes a plurality of sensing electrodes disposed at least side by side in the sensing region. The conductive material layer is disposed on the surface of the substrate, and includes a plurality of traces at least in the trace region and electrically connected to at least one of the sensing electrodes. The decorative layer is disposed on the surface of the substrate, and the decorative layer is located between the conductive material layer and the substrate, wherein the decorative layer has an inner edge adjacent to the interface. The display panel is disposed on one side of the touch panel, wherein the display panel further includes at least two auxiliary alignment marks disposed on the display panel, and an inner edge of the decorative layer of the touch panel corresponds to an auxiliary alignment mark of the display panel.

The present invention will be further understood by those of ordinary skill in the art to which the present invention pertains. . 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.

Please refer to Figures 1 to 4. 1 is a top plan view of a touch panel according to a first embodiment of the present invention, and FIG. 2 is an enlarged schematic view showing a X area of the touch panel according to the first embodiment of the present invention. FIG. FIG. 4 is a cross-sectional view of the touch panel of the first embodiment of the present invention taken along the line A-A′ of FIG. 1 , and FIG. 4 is a schematic view of the alignment of the touch display device according to the first embodiment of the present invention. . The present embodiment provides a touch display device 1 (as shown in FIG. 4), including a display panel 10A and a touch panel 20A. The touch display device 1 of the present embodiment includes an external touch panel 20A, but is not limited thereto. The display panel 10A may be a liquid crystal display panel, an organic light emitting diode (OLED) display panel, an electro-wetting display panel, an e-ink display panel, a plasma display panel, and field emission. (FED) display panel or any other suitable display panel.

For convenience of description, FIG. 1 only shows some components of the touch panel 20A to clearly show the main spirit of the embodiment. As shown in FIG. 1 and FIG. 3 , the touch panel 20A includes a substrate 100 , a sensing electrode layer 102 , a conductive material layer 104 , and at least two alignment marks 106 . Each component of 20A. The substrate 100 of the touch panel 20A may include a rigid substrate or a flexible substrate such as a glass substrate, a plastic substrate, a cover lens, a flexible cover plate, a substrate of a display, or other suitable substrate. In addition, the shape of the substrate 100 of this embodiment is rectangular, but is not limited thereto. In other variant embodiments, the shape of the substrate 100 can also be circular or other suitable geometry, such as can match the shape of the display panel 10A. The surface of the substrate 100 defines a sensing region R1 and a routing region R2. The routing region R2 is disposed on at least one outer side of the sensing region R1. The routing area R2 of the present embodiment is disposed on the outer side of the sensing area R1 and substantially surrounds the sensing area R1, but is not limited thereto. The routing area R2 is disposed adjacent to the sensing area R1 with an interface 107 therebetween.

The touch panel 20A of the present embodiment is a self-capacitance single-layer touch panel. Therefore, the touch electrode is mainly composed of a single layer sensing electrode layer 102, so the touch panel 20A can be regarded as a single layer. One layer sensor (OLS) structure, but not limited to this. For example, in other modified embodiments, the touch panel 20A can also be a self-capacitive double-layer touch panel, a mutual capacitance single-layer touch panel, or a mutual-capacitive double-layer touch panel. The sensing electrode layer 102 is disposed on the surface of the substrate 100, and includes a plurality of sensing electrodes 108 arranged in an array, and is disposed at least side by side in the sensing region R1. In other words, the sensing electrode layer 102 is mainly disposed on the substrate. Within the sensing area R1 of the surface of 100, but not limited thereto. The sensing electrodes 108 are respectively bulk electrodes and are electrically isolated from each other. The shape of the sensing electrode 108 may include a rectangle, a diamond, a triangle, or other suitable geometric shape, and the sensing electrode 108 of the present embodiment is exemplified by a rectangle. The material of the sensing electrode layer 102 may include a transparent conductive material such as indium tin oxide (ITO), indium zinc oxide (IZO), and aluminum zinc oxide (AZO), but not Limited.

The conductive material layer 104 is disposed on the surface of the substrate 100, and includes a plurality of traces 110 at least in the trace region R2 and electrically connected to at least one of the sensing electrodes 108. In detail, each of the traces 110 of the present embodiment is mainly disposed in the trace region R2, and a portion of the traces 110 extend to the sensing region R1 to be electrically connected to one of the sensing electrodes 108 corresponding to the sensing region R1. Connections, for example, each of the traces 110 are respectively connected to one sensing electrode 108. The material of the conductive material layer 104 may include a non-transparent conductive material such as silver, aluminum, copper, magnesium, molybdenum, chromium, titanium, a composite layer of the above materials, an alloy of the above materials, or a transparent conductive material such as indium tin oxide or indium zinc oxide. And aluminum silicate, may also include conductive particles, carbon nanotubes, nanowires (such as nanowires), graphene or terpenes, but not limited thereto. This embodiment is exemplified by the fact that the conductive material layer 104 includes a metal material such as silver. In other variations, the traces 110 and the sensing electrodes 108 may be formed directly from the same material. For example, the conductive material layer 104 and the sensing electrode layer 102 are the same material or the same conductive layer, but not limited thereto.

As shown in FIG. 1 and FIG. 2, the two alignment marks 106 of the present embodiment are disposed in the sensing electrode layer 102 and disposed adjacent to the interface 107 between the sensing region R1 and the routing region R2. In this embodiment, each of the alignment marks 106 is formed by two adjacent sensing electrodes 108, and the alignment marks 106 are respectively disposed at the edges of the sensing electrodes 108, but are not limited thereto. In detail, each of the alignment marks 106 of the embodiment is composed of two adjacent sensing electrodes 108a, 108b, wherein adjacent portions of the sensing electrodes 108a, 108b have an inner portion adjacent to the boundary 107, respectively. The notch 112 is formed, and the two notches 112 form a pattern of the alignment mark 106. The edges of the sensing electrodes 108a, 108b corresponding to the notches 112 are respectively a straight edge, but are not limited thereto. In other variant embodiments, the edge of the sensing electrode 108 corresponding to the notch 112 may also be an arcuate edge. The pattern of the alignment mark 106 in this embodiment is substantially a triangle, but is not limited thereto. The pattern of the alignment mark 106 can also be other suitable polygonal geometric patterns or patterns with arc edges depending on actual design requirements. The alignment mark 106 of the present embodiment is preferably formed by the same patterning process as the sensing electrode layer 102, that is, when defining the pattern of the sensing electrodes 108 (including the sensing electrodes 108a, 108b). The pattern of the alignment mark 106, but not limited thereto. It is also noted that, as shown in FIG. 2, the extension line extending from the edge of the notch 112 of the sensing electrodes 108a, 108b to the touch panel 20A has an intersection C, which can be regarded as a triangular pattern of the alignment mark 106 of the embodiment. The apex. On the other hand, the two alignment marks 106 of the embodiment are respectively disposed on two adjacent sides of the sensing region R1, that is, adjacent to the adjacent two sides of the boundary 107, but not limited thereto. For example, the alignment mark 106 may be respectively disposed on two opposite sides of the sensing area R1, or respectively disposed at other suitable positions on the edge of the sensing area R1, so that the display panel 10A and the touch panel 20A are assembled. Can achieve precise alignment.

In addition, as shown in FIG. 3 , the touch panel 20A of the present embodiment may further include a decorative layer 114 (not shown in FIG. 1 ) disposed on the surface of the substrate 100 , and the decorative layer 114 is located on the conductive material layer 104 . Between the substrate 100 and the substrate 100. The decorative layer 114 of the present embodiment is mainly disposed in the routing region R2 and extends slightly to the outer edge of the interface 107 and the sensing region R1 to shield the conductive material layer 104 from the outer edge of the sensing electrode 108 disposed near the interface 107. . For example, the decorative layer 114 may be composed of a colored ink material, but is not limited thereto. In some variations, the decorative layer 114 may also be located only in the routing region R2, exposing the outer edge of the sensing electrode 108 and the alignment mark 106. It should be noted that, in other modified embodiments, when the touch display device 1 is a frameless touch display device, the decorative layer 114 may not be disposed on the surface of the substrate 100, and thus the conductive material layer 104 and the sensing electrode layer 102 are The outer edge may be disposed directly on the surface of the substrate 100.

As shown in FIG. 4, the display panel 10A includes a display area R3. The size of the display area R3 is preferably smaller than the size of the sensing area R1 of the touch panel 20A, but is not limited thereto. For example, the boundary B of the display area R3 may correspond to the inner edge of the decorative layer 114. The display area R3 may include a plurality of pixels P, which are arranged side by side in the display area R3 in an array manner. In the process of fabricating the touch display device 1 of the present embodiment, when the display panel 10A and the touch panel 20A are assembled, the alignment mark 106 of the touch panel 20A is assembled corresponding to the boundary B of the display area R3 of the display panel 10A. In detail, the alignment is performed in the pattern of the alignment mark 106, and the vertex C inside the sensing region R1 is aligned with the outer edge of the pixel P in the display region R3, but is not limited thereto. In other embodiments, the remaining vertices or edges in the pattern of the alignment mark 106 can also be used as the reference point for the alignment. In addition, in other variant embodiments, a portion of the decorative layer 114 adjacent to the outer edge of the boundary 107 and the sensing region R1 (that is, the inner edge of the decorative layer 114 adjacent to the boundary 107) may also be directly utilized as a reference for alignment. point. In addition, in other embodiments, the touch panel 20A of the present invention may further include three or more alignment marks 106, for example, respectively disposed on three different sides of the sensing area R1, so that the display panel 10A and the touch Panel 20A can be more effectively aligned when assembled. It should be noted that the method of alignment assembly of the present embodiment can be applied to other embodiments and modified embodiments of the present invention.

As can be seen from the above, the touch display device 1 of the present embodiment is provided with the alignment mark 106 on the edge of the sensing electrode 108 of the touch panel 20A, and the display of the alignment mark 106 on the sensing electrode 108 and the display panel 10A. The edge of the region R3 is assembled in alignment. Therefore, the touch display device 1 of the present embodiment does not need to additionally provide the alignment mark 106 by using the routing area R2 or the frame area, thereby enabling an electronic product having a narrow frame or a frameless touch display device, and can conform to The need for fine alignment assembly.

The different embodiments 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 components in the various embodiments of the present invention are denoted by the same reference numerals to facilitate the comparison between the embodiments.

Please refer to Figure 5 and Figure 6. FIG. 5 is a top plan view of a touch panel according to a first variation of the first embodiment of the present invention, and FIG. 6 is a view showing a touch display device according to a first variation of the first embodiment of the present invention. A schematic representation of the bit. The difference between the touch panel 20B and the first embodiment is that each of the alignment marks 106 is formed by the notch 112 of the single sensing electrode 108c, and the alignment mark 106 is respectively disposed on the sensing electrode. The edge of 108c. In detail, the edge of the sensing electrode 108c provided with the alignment mark 106 has a concave notch 112 at a portion close to the boundary 107, and the notch 112 constitutes a pattern of the alignment mark. The pattern of the alignment mark 106 of the modified embodiment is substantially a triangle, but is not limited thereto. The pattern of the alignment mark 106 can also be other suitable polygonal geometric patterns according to actual design requirements. In addition, the alignment mark 106 of the modified embodiment is preferably formed by the same patterning process as the sensing electrode layer 102, but is not limited thereto. In the process of fabricating the touch display device 1 in the embodiment of the present invention, when the display panel 10B and the touch panel 20B are assembled, the alignment mark 106 of the touch panel 20B is adjacent to the display area R3 of the display panel 10B. B is assembled in an alignment manner that is equidistant (e.g., a distance L). In detail, the modified embodiment is assembled in such a manner that the vertex inside the sensing region R1 in the pattern of the alignment mark 106 is equidistant from the outer edge of the pixel P in the display region R3. In other words, the alignment mark 106 on the upper side of the touch panel 20B in FIG. 6 corresponds to the position of the display panel 10B at a distance L from the upper boundary B of the display area R3, and the alignment mark on the lower side of the touch panel 20B. The corresponding position of 106 and display panel 10B is also the same distance L as the lower boundary B of display area R3. In other embodiments, the remaining vertices or edges in the pattern of the alignment mark 106 can also be used as the reference point for the alignment. On the other hand, the two alignment marks 106 of the embodiment are respectively disposed on opposite sides of the sensing region R1, but not limited thereto. For example, the alignment mark 106 may also be respectively disposed in the sensing region R1. The adjacent two sides are disposed on other suitable positions on the edge of the sensing area R1, so that the display panel 10B and the touch panel 20B can be accurately aligned when assembled. It should be noted that the pattern change of the alignment mark 106 and the method of equidistant alignment assembly of the modified embodiment may also be applied to other embodiments of the present invention.

Please refer to Figure 7 and Figure 8. FIG. 7 is a top plan view of a touch panel according to a second variation of the first embodiment of the present invention, and FIG. 8 is a view showing a touch display device according to a second variation of the first embodiment of the present invention. A schematic representation of the bit. The difference from the first embodiment is that each of the alignment marks 106 of the touch panel 20C of the present variation embodiment is composed of one sensing electrode 108, and the sensing electrodes 108d constituting the alignment mark 106 respectively have one. The opening H is disposed inside the sensing electrode 108d, and is preferably disposed near the boundary 107, but is not limited thereto. The shape of the opening H is a pattern of the alignment marks 106, that is, the opening H of the sensing electrode 108d constitutes the alignment mark 106. The shape of the opening H of the embodiment of the present invention is a triangle, but is not limited thereto. For example, the shape of the opening H may be other suitable polygonal geometric patterns according to actual design requirements. In addition, the alignment mark 106 of the modified embodiment is preferably formed by the same patterning process as the sensing electrode layer 102, but is not limited thereto. On the other hand, in the process of manufacturing the touch display device 1 in the embodiment of the present invention, when the display panel 10C and the touch panel 20C are assembled, the alignment mark 106 of the touch panel 20C corresponds to the display area R3 of the display panel 10C. The boundary B is assembled, that is, the vertices in the pattern of the alignment mark 106 that are closer to the inside of the sensing region R1 are aligned with the outer edge of the pixel P in the display region R3. It should be noted that the position of the alignment mark 106 of the modified embodiment may also be applied to other embodiments of the present invention.

Please refer to Figure 9 and Figure 10. FIG. 9 is a top plan view of a touch panel according to a third variation of the first embodiment of the present invention, and FIG. 10 is a view showing a touch display device according to a third variation of the first embodiment of the present invention. A schematic representation of the bit. The difference between the touch panel 20D of the present embodiment and the first embodiment is that the alignment mark 106 is disposed in the conductive material layer 104. In other words, the alignment mark 106 of the modified embodiment is composed of the conductive material layer 104. It is configured and located in the routing area R2 and adjacent to the interface 107 between the sensing area R1 and the routing area R2. The alignment mark 106 is preferably disposed in the area of the routing area R2 where the number of the routing lines 110 is small or the routing line 110 is not provided, but is not limited thereto. The pattern of the alignment mark 106 is substantially a triangle, but is not limited thereto. For example, the pattern of the alignment mark 106 may be other suitable polygonal geometric patterns according to actual design requirements. In addition, the alignment mark 106 of the modified embodiment is preferably formed by the same patterning process as the trace 110, that is, when the pattern of the conductive material layer 104 is patterned to define the pattern of the traces 110, The pattern of the alignment mark 106, but not limited thereto. On the other hand, the display panel 10D of the embodiment of the present invention further includes at least two auxiliary alignment marks 116 disposed outside the display area R3, wherein the pattern of the auxiliary alignment mark 116 is a triangle, but not limited thereto. For example, the pattern of the auxiliary alignment mark 116 may be other suitable polygonal geometric patterns or patterns having arcuate edges. In the process of fabricating the touch display device 1 in the embodiment of the present invention, when the display panel 10D and the touch panel 20D are assembled, the alignment mark 106 of the touch panel 20D corresponds to the auxiliary alignment mark 116 of the display panel 10D. The two are assembled in alignment. However, in other embodiments, one of the vertices of the alignment mark 106 and the apex of the auxiliary alignment mark 116 may be assembled equidistantly, for example, as shown in FIG. The alignment method will not be described again. In detail, at the time of assembly, the alignment mark 106 and the auxiliary alignment mark 116 are directly overlapped. In other embodiments, the remaining vertices or edges of the pattern of the alignment mark 106 or the auxiliary alignment mark 116 may be used as the reference point of the alignment, or the pattern of the alignment mark 106 may be closer to the sensing area. The vertices inside R1 and the apexes of the auxiliary alignment mark 116 are compared to the vertices of the display area R3 by equidistant alignment of the distance L. It should be noted that the pattern change of the alignment mark 106 and the auxiliary alignment mark 116 of the modified embodiment may also be applied to other embodiments of the present invention. It is worth mentioning that the alignment mark 106 can also be composed of a part of the trace 110 located in the sensing area R1. In other words, the alignment mark 106 may also be composed of a portion of the conductive material layer 104 disposed in the sensing region R1 to further effectively reduce the area required for the wiring region R2.

Please refer to Figure 11 and Figure 12. 11 is a top plan view of a touch panel according to a second embodiment of the present invention, and FIG. 12 is a schematic view showing the alignment of the touch display device according to the second embodiment of the present invention. In order to facilitate the description and clearly show the main spirit of the embodiment, the 11th and 12th drawings do not show the traces 110 in the touch panel 20E. The touch panel 20E of the present embodiment is different from the first embodiment in that the shape of the substrate 100 is circular, and the shape of the display panel 10E is also circular with the touch panel 20E, but not limited thereto. The shape of the display panel 10E may also be elliptical, and the shape of the display panel 10E may also be elliptical in accordance with the touch panel 20E. On the other hand, the touch panel 20E of the present embodiment includes three alignment marks 106 respectively disposed in the sensing electrode layer 102 and disposed adjacent to the interface 107 between the sensing region R1 and the routing region R2. In this embodiment, each of the alignment marks 106 is formed by two adjacent sensing electrodes 108, and the alignment marks 106 are respectively disposed at the edges of the sensing electrodes 108, but are not limited thereto. In detail, the adjacent edges of the two adjacent sensing electrodes 108 constituting the alignment mark 106 respectively have a concave notch 112 at a portion close to the boundary 107, and the two notches 112 constitute a pattern of the alignment mark 106. The edge of the sensing electrode 108 corresponding to the notch 112 is a straight edge, but is not limited thereto. In other variant embodiments, the edge of the sensing electrode 108 corresponding to the notch 112 may also be an arcuate edge. The pattern of the alignment mark 106 in this embodiment is substantially a triangle, but is not limited thereto. The pattern of the alignment mark 106 can also be other suitable polygonal geometric patterns or patterns with arc edges depending on actual design requirements. In addition, the alignment mark 106 of the embodiment is preferably formed by the same patterning process as the sensing electrode layer 102, that is, when the pattern of the sensing electrode 108 is defined, the pattern of the alignment mark 106 is defined. But not limited to this.

As shown in FIG. 12, in the process of fabricating the touch display device 2 of the present embodiment, when the display panel 10E and the touch panel 20E are assembled, the alignment mark 106 of the touch panel 20E and the display area of the display panel 10E are displayed. The boundary B of R3 is assembled in a manner that is equidistant (e.g., a distance L). In detail, when the touch display device 2 of the present embodiment is assembled, the pixel in the pattern of the alignment mark 106 is closer to the apex inside the sensing region R1 and the outermost pixel P in the display region R3 (not shown in FIG. Figure 12) The outer edge is equidistant. In other embodiments, the remaining vertices or edges in the pattern of the alignment mark 106 can also be used as the reference point for the alignment. It should be noted that the display panel 10E having a circular shape and the touch panel 20E of the present embodiment may also be used in other embodiments of the present invention.

Please refer to FIG. 13 , which is a schematic diagram showing the alignment of the touch display device according to the third embodiment of the present invention. The touch display device 3 of the present embodiment includes a touch panel 20F and a display panel 10F. The touch panel 20F includes a substrate 100, a sensing electrode layer 102, a conductive material layer 104 (not shown in FIG. 13), and a decorative layer 114. The surface of the substrate 100 defines a sensing region R1 and a routing region R2. The routing region R2 is disposed on at least one outer side of the sensing region R1, and the interface between the routing region R2 and the sensing region R1 has an interface 107. The sensing electrode layer 102 is disposed on the surface of the substrate 100, and the sensing electrode layer 102 includes a plurality of sensing electrodes 108 disposed at least side by side in the sensing region R1. The conductive material layer 104 is disposed on the surface of the substrate 100, and the conductive material layer 104 includes at least one of the plurality of traces 110 at least in the trace region R2 and electrically connected to the sensing electrodes 108 respectively. The figure shown in Fig. 1 is omitted in Fig. 13. The decorative layer 114 is disposed on the surface of the substrate 100, and the decorative layer 114 is located between the conductive material layer 104 and the substrate 100, wherein the decorative layer 114 has an inner edge 114a adjacent to the interface 107. The inner edge 114a of the decorative layer 114 can be, for example, a decorative layer 114 adjacent to at least one edge of the sensing electrode layer 102. The display panel 10F is disposed on one side of the touch panel 20F, wherein the display panel 10F further includes at least two auxiliary alignment marks 116 disposed on the display panel 10F. The difference between the embodiment and the embodiment is that the touch panel 20F does not have the alignment mark, and the touch display device 3 of the embodiment is used for assembling the touch panel 20F and the display panel 10F. The inner edge 114a of the layer 114 is assembled corresponding to the auxiliary alignment mark 116 of the display panel 10F. The remaining features of the touch display device 3 of the present embodiment may be the same as those of the above embodiment, and will not be described again.

In summary, the touch panel and the touch display device of the present invention utilize the alignment mark on the sensing electrode or the conductive material layer, and the edge or auxiliary alignment of the display area of the display panel during assembly. The mark corresponds. Therefore, the touch display device of the present invention does not need to use the bezel area to additionally set the alignment mark, or can effectively reduce the use area of the frame area, thereby realizing the electronic product with the narrow frame or the borderless touch display device. And can meet the needs of fine alignment assembly. In addition, the touch panel and the touch display device of the present invention can be applied to electronic products of various shapes, for example, having a rectangular or circular shape, and can also be applied to various planar, non-planar or even wearable electronic products.

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.

1, 2, 3‧‧‧ touch display device

10A, 10B, 10C, 10D, 10E, 10F‧‧‧ display panels

20A, 20B, 20C, 20D, 20E, 20F‧‧‧ touch panels

100‧‧‧Substrate

102‧‧‧Sensing electrode layer

104‧‧‧ Conductive material layer

106‧‧‧ alignment mark

107‧‧‧ junction

108, 108a, 108b, 108c, 108d‧‧‧ sensing electrodes

110‧‧‧Wiring

112‧‧‧ gap

114‧‧‧Decorative layer

114a‧‧‧ inner edge

116‧‧‧Auxiliary registration mark

B‧‧‧ border

C‧‧‧ intersection

H‧‧‧Opening

L‧‧‧ distance

R1‧‧‧ Sensing Area

R2‧‧‧Drop area

R3‧‧‧ display area

P‧‧‧ pixels

X‧‧‧ area

FIG. 1 is a schematic top plan view of a touch panel according to a first embodiment of the present invention. FIG. 2 is an enlarged schematic view showing the X area of the touch panel of the first embodiment of the present invention in FIG. 1 . Fig. 3 is a cross-sectional view showing the touch panel of the first embodiment of the present invention taken along line A-A' of Fig. 1. FIG. 4 is a schematic diagram showing the alignment of the touch display device according to the first embodiment of the present invention. FIG. 5 is a schematic top plan view of a touch panel according to a first variation of the first embodiment of the present invention. FIG. 6 is a schematic diagram showing the alignment of the touch display device according to the first modified embodiment of the first embodiment of the present invention. FIG. 7 is a schematic top plan view of a touch panel according to a second modified embodiment of the first embodiment of the present invention. FIG. 8 is a schematic diagram showing the alignment of the touch display device according to the second modified embodiment of the first embodiment of the present invention. FIG. 9 is a top plan view of a touch panel according to a third modified embodiment of the first embodiment of the present invention. FIG. 10 is a schematic diagram showing the alignment of the touch display device according to the third modified embodiment of the first embodiment of the present invention. 11 is a top plan view of a touch panel according to a second embodiment of the present invention. FIG. 12 is a schematic diagram showing the alignment of the touch display device according to the second embodiment of the present invention. FIG. 13 is a schematic diagram showing the alignment of the touch display device according to the third embodiment of the present invention.

20A sense the touch panel 100 of the substrate 102 sensing electrode layer 104 a conductive material layer 106 of the alignment mark 107 at the junction 108,108a, 108b sense electrode traces 112 notch 110 sensing region R1 R2 X wiring region Region

Claims (15)

A touch panel includes: a substrate having a sensing area and a routing area defined on a surface thereof, the routing area being disposed on at least one outer side of the sensing area; and a sensing electrode layer disposed on the surface of the substrate The sensing electrode layer includes a plurality of sensing electrodes disposed at least side by side in the sensing region; a conductive material layer disposed on the surface of the substrate, the conductive material layer including a plurality of traces at least in the routing region and Each of the sensing electrodes is electrically connected to at least one of the sensing electrodes; and at least two alignment marks are disposed in the sensing electrode layer or the conductive material layer, wherein the alignment marks are disposed on the sensing electrode In the layer, each of the alignment marks is formed by at least one of the sensing electrodes, and when the alignment marks are disposed in the conductive material layer, the alignment marks are respectively formed by the conductive material layer It is constructed and located in the routing area. The touch panel of claim 1, wherein the alignment marks are respectively disposed at edges of the sensing electrodes. The touch panel of claim 2, wherein the trace area has an interface with the sensing area, and the pattern of each of the alignment marks is formed by two adjacent sensing electrodes. Adjacent edges of the two sensing electrodes respectively have a notch near the boundary, and the notches constitute a pattern of the alignment mark. The touch panel of claim 2, wherein the trace area and the sensing area have an interface, and each of the alignment marks is formed by one of the sensing electrodes, and the edge of the sensing electrode is The portion near the junction has a gap and the gap constitutes a pattern of the alignment mark. The touch panel of claim 1, wherein each of the alignment marks is formed by one of the sensing electrodes, and each of the sensing electrodes constituting the alignment marks respectively has an opening, and each of the openings The shape of the holes is a pattern of each of the alignment marks. The touch panel of claim 1, wherein the pattern of the alignment marks is a polygonal geometric pattern or a pattern having a circular arc edge. The touch panel of claim 1, wherein the touch panel is a single-layer electrode touch panel. The touch panel of claim 1, wherein the sensing electrode layer and the conductive material layer may be the same or different conductive materials. The touch panel of claim 1, wherein the substrate has a circular or rectangular shape. A touch display device comprising: one touch panel as claimed in claim 1; and a display panel disposed on one side of the touch panel, and the display panel includes a display area. The touch display device of claim 10, wherein the alignment marks of the touch panel correspond to boundaries of the display area. The touch display device of claim 10, wherein each of the alignment marks of the touch panel has an equidistant alignment with a boundary of the display area. The touch display device of claim 10, wherein the display panel further comprises at least two auxiliary alignment marks disposed outside the display area, wherein the alignment marks of the touch panel correspond to the auxiliary pairs of the display panel A bit mark, and the pattern of the auxiliary alignment marks is a polygonal geometric pattern or a pattern having a circular arc edge. The touch display device of claim 10, wherein the display panel further comprises at least two auxiliary alignment marks disposed outside the display area, and the auxiliary pairs of the alignment marks of the touch panel and the display panel The bit marks have equidistant alignments, and the patterns of the auxiliary alignment marks are polygonal geometric patterns or patterns having arc edges. A touch display device includes: a touch panel comprising: a substrate defining a sensing area and a routing area on a surface thereof, the routing area being disposed on at least one outer side of the sensing area, the routing Between the region and the sensing region, a sensing electrode layer is disposed on the surface of the substrate, the sensing electrode layer includes a plurality of sensing electrodes disposed at least side by side in the sensing region; a conductive material layer Provided on the surface of the substrate, the conductive material layer includes at least one of a plurality of traces located in the trace region and electrically connected to at least one of the sensing electrodes; and a decorative layer disposed on the surface of the substrate And the decorative layer is located between the conductive material layer and the substrate, wherein the decorative layer has an inner edge adjacent to the interface; and a display panel is disposed on one side of the touch panel, wherein the display panel further comprises At least two auxiliary alignment marks are disposed on the display panel, and the inner edge of the decorative layer of the touch panel is correspondingly displayed These auxiliary alignment marks of the panel.