TW201601017A - Touch panel - Google Patents

Abstract

A touch panel including a substrate, a first decoration pattern layer, a plurality of touch sensing components, a plurality of wirings, a dielectric optical layer and a second decoration pattern layer is provided. The substrate has a display area and a peripheral area, wherein the peripheral area is located at least at a side of the display area. The first decoration pattern layer covers the peripheral area and has a hollow area. The touch sensing components are at least located at the display area. The wirings are electrically connected to the touch sensing components and disposed in the peripheral area. The dielectric optical layer is disposed on the substrate and corresponded to the hollow area. The second decoration pattern layer is disposed on the dielectric optical layer.

Description

Touch panel

The present invention relates to a touch panel, and more particularly to a touch panel that can improve the capacitive coupling effect between a trace and a logo pattern.

In order to achieve portability, volume, and user-friendly, many information products have been converted from traditional keyboards or mice to touch panels. With the rapid development of the optoelectronic industry, a variety of touch panels have been developed. In addition to the high-sensitivity, low-power consumption and other good performance characteristics, the touch panel must have other additional functions, such as display of logo, fingerprint identification, infrared distance sensor, Front lens cameras and warning lights to enhance their competitiveness.

At present, the marking pattern on the touch panel is mainly made of conductive ink or metal. However, when the wiring area of the peripheral area is insufficient and the traces have to pass over the mark pattern, electrical problems may be derived due to the capacitive coupling effect between the traces and the mark pattern, and the traces cross the mark pattern. It is easy to cause disconnection problems due to excessive gaps. Therefore, it is necessary to additionally set other layers or re-route the wiring to improve the electrical influence of the conductive marking pattern, thereby increasing The complexity of the process and the cost and time it takes.

The present invention provides a touch panel that can improve the problem of disconnection and the electrical influence of the marking pattern.

A touch panel of the present invention includes a substrate, a first decorative pattern layer, a plurality of touch sensing elements, a plurality of traces, a dielectric optical layer, and a second decorative pattern layer. The substrate has a display area and a peripheral area, wherein the peripheral area is located on at least one side of the display area. The first decorative pattern layer covers the peripheral area and has a hollowed out area. The touch sensing element is disposed at least in the display area. The trace is electrically connected to the touch sensing element and disposed in the peripheral area. The dielectric optical layer is disposed on the substrate and corresponds to the hollow region. The second decorative pattern layer is disposed on the dielectric optical layer.

In an embodiment of the invention, the dielectric optical layer further covers an edge of the first decorative pattern layer adjacent to the dielectric optical layer.

In an embodiment of the invention, the dielectric optical layer covering the edge of the first decorative pattern layer is located between the first decorative pattern layer and the second decorative pattern layer.

In an embodiment of the invention, the material of the dielectric optical layer comprises cerium oxide, cerium nitride, magnesium fluoride, titanium dioxide or a combination of at least two of the foregoing.

In an embodiment of the invention, the dielectric optical layer includes a first layer and a second layer, wherein the first layer is located between the second layer and the substrate, and the refractive index of the first layer is greater than the refractive index of the second layer rate.

In an embodiment of the invention, the dielectric optical layer includes a plurality of One layer and multiple second layers. The refractive index of each of the first layers is greater than the refractive index of each of the second layers, and one of the first layers is closer to the substrate than all of the second layers.

In an embodiment of the invention, the refractive index of each of the first layers falls within a range of 2 to 3, and the refractive index of each of the second layers falls within a range of 1 to 2.

In an embodiment of the invention, the at least one trace partially covers the hollow region and is disposed on the second decorative pattern layer.

In an embodiment of the invention, the thickness of the dielectric optical layer is smaller than the thickness of the first decorative pattern layer.

In an embodiment of the invention, the dielectric optical layer has a thickness of less than 2 microns.

In an embodiment of the invention, the touch panel further includes at least one touch sensing component corresponding to the cutout region, and the touch sensing component corresponding to the cutout region is electrically independent of the touches located in the display region Control the sensing element.

A touch panel of the present invention includes a substrate, a dielectric optical layer, a first decorative pattern layer, a plurality of touch sensing elements, and a plurality of traces. The substrate has a display area and a peripheral area, wherein the peripheral area is located on at least one side of the display area. The dielectric optical layer is disposed in the peripheral region. The first decorative pattern layer covers the peripheral region and the dielectric optical layer. The touch sensing element is disposed at least in the display area. The trace is electrically connected to the touch sensing element and disposed in the peripheral area.

In an embodiment of the invention, the material of the dielectric optical layer comprises cerium oxide, cerium nitride, magnesium fluoride, titanium dioxide or a combination of at least two of the foregoing.

In an embodiment of the invention, the dielectric optical layer comprises a first layer And a second layer, wherein the first layer is between the second layer and the substrate, and the refractive index of the first layer is greater than the refractive index of the second layer.

In an embodiment of the invention, the dielectric optical layer includes a plurality of first layers and a plurality of second layers. The refractive index of each of the first layers is greater than the refractive index of each of the second layers, and one of the first layers is closer to the substrate than all of the second layers.

In an embodiment of the invention, the refractive index of each of the first layers falls within a range of 2 to 3, and the refractive index of each of the second layers falls within a range of 1 to 2.

In an embodiment of the invention, the at least one trace partially covers the dielectric optical layer and is disposed on the first decorative pattern layer.

In an embodiment of the invention, the thickness of the dielectric optical layer is smaller than the thickness of the first decorative pattern layer.

In an embodiment of the invention, the dielectric optical layer has a thickness of less than 2 microns.

In an embodiment of the invention, the touch panel further includes at least one touch sensing element corresponding to the dielectric optical layer, and the touch sensing element corresponding to the dielectric optical layer is electrically independent of being located in the display area. The touch sensing elements.

Based on the above, the touch panel of the present invention forms a marking pattern with a dielectric optical layer. Since the material of the dielectric optical layer is a dielectric material, the electrical problem derived from the capacitive coupling effect between the trace and the mark pattern can be improved. In addition, the touch panel of the present invention can also over-adjust the refractive index and thickness of the dielectric optical layer to meet different reflectivity and chromaticity requirements of different touch panels, and can improve the trace crossing pattern. Broken wire problem caused by excessive gap.

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

100,200‧‧‧ touch panel

110‧‧‧Substrate

120‧‧‧First decorative pattern layer

130, 130A‧‧‧ touch sensing components

132‧‧‧First electrode

132a‧‧‧First electrode pad

132b‧‧‧first cable

134‧‧‧second electrode

134a‧‧‧Second electrode pad

134b‧‧‧second cable

140‧‧‧Wiring

150‧‧‧Dielectric optical layer

152‧‧‧ first floor

154‧‧‧ second floor

160‧‧‧Second decorative pattern layer

A1‧‧‧ display area

A2‧‧‧ surrounding area

A3‧‧‧ hollow area

B‧‧‧Area

D1‧‧‧ first direction

D2‧‧‧ second direction

T, T152, T154‧‧‧ thickness

A-A’, B-B’‧‧‧ cut line

1A is a top plan view of a touch panel in accordance with a first embodiment of the present invention.

Fig. 1B is a schematic cross-sectional view taken along line A-A' of Fig. 1A.

Fig. 1C is an enlarged view of a region B in Fig. 1B.

2 is a top plan view of another touch panel in accordance with a first embodiment of the present invention.

3A is a top plan view of a touch panel in accordance with a second embodiment of the present invention.

Fig. 3B is a schematic cross-sectional view taken along line B-B' of Fig. 3A.

1A is a top plan view of a touch panel in accordance with a first embodiment of the present invention. Fig. 1B is a schematic cross-sectional view taken along line A-A' of Fig. 1A. Fig. 1C is an enlarged view of a region B in Fig. 1B. 2 is a top plan view of another touch panel in accordance with a first embodiment of the present invention. Referring to FIG. 1A to FIG. 1C , the touch panel 100 of the present embodiment includes a substrate 110 , a first decorative pattern layer 120 , a plurality of touch sensing elements 130 , a plurality of traces 140 , a dielectric optical layer 150 , and a second decoration . Pattern layer 160.

The substrate 110 has a display area A1 and a peripheral area A2, wherein the peripheral area A2 is located on at least one side of the display area A1. The first decorative pattern layer 120 disposed on the peripheral area A2 has a cutout area A3 to define a location of a logo pattern such as a brand name or a function key. The touch sensing element 130 is disposed on the display area A1 and extends from the display area A1 to the peripheral area A2 and covers a partial area of the first decorative pattern layer 120. The trace 140 is electrically connected to the touch sensing element 130, and the trace 140 or other lines, circuit boards, and the like, which are not shown, are disposed in the peripheral area A2. In an embodiment, the peripheral area A2 may also be provided with a touch sensing element 130 extending from the display area A1 or a corresponding functional pattern to be independent of the touch sensing element 130 of the display area A1 corresponding to a functional pattern (such as a hot key). The touch sensing element 130, which is independent of the display area A1, is a touch sensing element 130 disposed only corresponding to a functional pattern (such as a hot key), and is electrically independent and structurally separated from the touch sensing element disposed in the display area A1. 130. In the present embodiment, the number of the cutout areas A3 is one and the shape is a rectangle. In addition, the hollow area A3 is located at a corner of the peripheral area A2, and the peripheral area A2 is located on the four sides of the display area A1, that is, the peripheral area A2 surrounds the display area A1, but the present invention is not limited to the above, and the actual arrangement relationship of the above respective areas and The number and shape of the cutout A3 can be determined by the design requirements.

The substrate 110 can be used as a cover. The first decorative pattern layer 120, the touch sensing element 130, the trace 140, the dielectric optical layer 150, and the second decorative pattern layer 160 are disposed on the same surface of the substrate 110 (hereinafter referred to as component configuration). Face). The arrangement of the components herein is not intended to limit all of the above elements to the element arrangement surface, but generally refers to all of the above elements being located on the same side of the substrate 110. In addition, the surface of the substrate 110 relative to the component arrangement surface is an operation surface, that is, touch The surface touched by the user during the operation or the surface of the substrate 110 relatively adjacent to the user when the touch is suspended. In an embodiment, an anti-stain coating may be selectively disposed on the operation surface.

The cover plate may be a cover plate formed by a glass cover plate, a plastic cover plate, a composite plastic substrate or other high mechanical strength material having protection (for example, scratch resistance), covering or beautifying the corresponding device. Further, the thickness of the cover plate may be between 0.2 mm and 2 mm. Furthermore, the shape of the cover plate may be a planar shape, a curved shape, or a combination of the aforementioned shapes.

The first decorative pattern layer 120 covers the peripheral area A2 and exposes the display area A1. Specifically, the first decorative pattern layer 120 is used, for example, to shield the shading elements located in the peripheral area A2, such as the traces 140 or other lines, circuit boards, and the like, not shown. Therefore, the first decorative pattern layer 120 is preferably made of a material having a good light blocking effect or a low light transmittance. For example, the material of the first decorative pattern layer 120 may include ceramics, diamond-like carbon, ceramics, organic materials, a mixture of organic materials and inorganic materials, an organic-inorganic hybrid compound, or a composite laminate thereof. In addition, the first decorative pattern layer 120 may be a single layer structure of a single material, a multilayer stack structure, or a multilayer stack structure of multiple materials. When the first decorative pattern layer 120 is a multi-layer stacked structure, the first decorative pattern layer 120 can also be used to beautify and decorate the touch panel 100 by modulating the material or color of the stacked decorative pattern layers. For example, the decorative pattern layer exposed on the outside and seen by the user may be a light color (for example, white), and the light decorative pattern layer may be further laminated with a dark decorative pattern layer (for example, black) to improve the first The light shielding property of the decorative pattern layer 120 is not limited thereto.

In this embodiment, the touch sensing element 130 includes a plurality of first electrodes 132. And a plurality of second electrodes 134, wherein the first electrodes 132 and the second electrodes 134 do not overlap each other and do not intersect to form a single-layer touch structure. Specifically, the first electrode 132 and the second electrode 134 are alternately arranged, for example, in the first direction D1 and respectively extend in the second direction D2 that intersects the first direction D1. The first direction D1 is, for example, but not limited to, perpendicular to the second direction D2. In other words, the first electrodes 132 are disposed on the substrate 110 at intervals in the first direction D1, and each of the second electrodes 134 is located between the two adjacent first electrodes 132. In a structure in which the first electrode 132 serves as a driving electrode and the second electrode 134 functions as a sensing electrode, a first capacitive sensing unit is defined by a first electrode 132 and a corresponding second electrode 134, but The invention is not limited thereto. In other embodiments, each of the first electrodes 132 and the second electrodes 134 can also be driven and sensed, and each forms a self-capacitive touch sensing unit.

It should be noted that the present invention is not intended to limit the shape, arrangement, relative arrangement, and electrical insulation of the touch sensing element 130. The touch sensing element 130 disposed on the substrate 110 and configured to enable surface sensing is within the scope of the present application. For example, in another embodiment, as shown in FIG. 2, the first electrode 132 and the second electrode 134 of the touch sensing element 130A may be staggered and electrically insulated from each other. In addition, the first electrode 132 may include a plurality of first electrode pads 132a and a plurality of first connection lines 132b, wherein each of the first connection lines 132b connects the adjacent two first electrode pads 132a in the second direction D2. On the other hand, the second electrode 134 includes a plurality of second electrode pads 134a and a plurality of second connection lines 134b, wherein each of the second connection lines 134b connects the adjacent two second electrode pads 134a in the first direction D1. Further, the first connection line 132b and the second connection line 134b intersect each other. Of course, in another embodiment, each of the first electrodes 132 and each of the second electrodes 134 may also be strip electrodes, and the first electrodes 132 and the second electrodes 134 are staggered with each other.

On the other hand, the present invention does not limit the first electrode 132 and the second electrode 134 to be directly formed on the substrate 110. For example, one of the first electrode 132 and the second electrode 134 may be formed on an insulating film (not shown) and then bonded to the substrate 110 through an adhesive layer (not shown). Alternatively, the first electrode 132 and the second electrode 134 may be formed on opposite surfaces of the insulating film and then bonded to the substrate 110 through an adhesive layer (not shown). Furthermore, the first electrode 132 and the second electrode 134 may be formed on the two insulating films and respectively bonded to the substrate 110.

In addition, the present invention does not need to limit the materials of the touch sensing elements 130, 130A. For example, the materials of the touch sensing elements 130, 130A may be metal oxides such as indium tin oxide, indium zinc oxide, aluminum tin oxide, aluminum zinc oxide, indium antimony zinc oxide, or other suitable materials. A transparent conductive material such as a carbon nanotube, a nanowire (such as nanosilver), a terpene, graphene or a composite layer of the above materials. In addition, the touch sensing elements 130, 130A may also be made of a metal or a metal alloy, and may have a mesh shape with a grid line width of between 0.08 μm and 8 μm. The metal includes at least one of silver (Ag), aluminum (Al), copper (Cu), chromium (Cr), titanium (Ti), molybdenum (Mo), niobium (Nb), niobium (Nd), the above materials The composite laminate or the alloy of the above materials, for example, the composite laminate is a three-layer structure of molybdenum/aluminum/molybdenum, molybdenum-niobium/aluminum-niobium/molybdenum oxide or indium tin oxide/silver/indium tin oxide. , but not limited to this.

The dielectric optical layer 150 is disposed on the substrate 110 and corresponds to the hollow area A3, The second decorative pattern layer 160 is disposed on the dielectric optical layer 150 such that the dielectric optical layer 150 is located between the second decorative pattern layer 160 and the substrate 110. In the present embodiment, the dielectric optical layer 150 covers the substrate 110 and a portion of the first decorative pattern layer 120, and the second decorative pattern layer 160 covers the dielectric optical layer 150. However, the invention is not limited to the above.

Further, the dielectric optical layer 150 is used as, for example, a ground color layer of a marking pattern, and the second decorative pattern layer 160 is, for example, a material having a light transmittance of less than 20% for reducing the overall light transmittance of the hollowed out area A3. To reduce the visibility of components that are opaque behind the dielectric optical layer 150 (such as traces 140 or other unillustrated lines, circuit boards, etc.) to the human eye. The material of the second decorative pattern layer 160 is, for example, a material having a good light-shielding effect (such as an optical density greater than 1) or a low light transmittance. The material of the second decorative pattern layer 160 may be the same or different from that of the first decorative pattern layer 120. Material.

When the wiring area of the peripheral area A2 is insufficient (for example, a design of a narrow bezel) such that the trace 140 has to pass over the dielectric optical layer 150 (indicative pattern), since the material of the dielectric optical layer 150 is made of a dielectric material, This embodiment can improve the electrical problems derived from the capacitive coupling effect between the trace 140 and the marking pattern, so that the touch panel 100 has a relatively stable electrical performance. In addition, the arrangement of the second decorative pattern layer 160 prevents the user from seeing the trace 140 located behind the second decorative pattern layer 160. In actual fabrication, when the trace 140 passes over the dielectric optical layer 150, the second decorative pattern layer 160 needs to be formed before the trace 140 to reduce the visibility of the trace 140.

The dielectric optical layer 150 can be a single layer structure of a single material, multi-layer stacking A multilayer stack structure of a structure or a plurality of materials, the material of which includes yttria, tantalum nitride, magnesium fluoride, titanium dioxide or a combination of at least two of the foregoing. It should be noted that, in this embodiment, the refractive index of the dielectric optical layer 150 (for example, an appropriate material), the number of layers, and the thickness of the dielectric layer 150 can be adjusted to meet different reflectances and chromaticities of different touch panels. Demand.

As shown in FIG. 1B and FIG. 1C , the dielectric optical layer 150 of the present embodiment may include, for example, a plurality of first layers 152 and a plurality of second layers 154 , wherein each of the first layers 152 has a refractive index greater than each of the second layers 154 . Refractive index. For example, the refractive index of each of the first layers 152 is, for example, falling within the range of 2 to 3, and the refractive index of each of the second layers 154 is, for example, falling within the range of 1 to 2. Further, the first layer 152 and the second layer 154 are alternately arranged in the hollowed out area A3. Moreover, one of the first layers 152 is closer to the substrate 110 than all of the second layers 154, and the refractive index of the first layer 152 is greater than the refractive index of the substrate 110. In other words, the refractive indices of the dielectric layers arranged on the substrate 110 and the refractive index of the substrate 110 are low in the order of the operation surface in the direction away from the operation surface (refractive index of the substrate 110), high, low, high, and low. High, low order. Specifically, in order to achieve the effect of reflection, the refractive index of the first layer 152 must be greater than the refractive index of the substrate 110, and the above-described arrangement relationship of high and low refractive indices needs to be maintained.

In an experimental example, when the material of the first layer 152 is titanium dioxide and the thickness T152 is about 57.65 nm, and the material of the second layer 154 is yttrium oxide and the thickness T154 is about 91.95 nm, the dielectric optical layer 150 The reflectance is approximately 78.08%. If the chromaticity displayed by the dielectric optical layer 150 is represented by the CIE 1976 color space, the a* value is -17.8 and the b* value is 40.85 (the color is yellow when the a* and b* values are positive values; a*) , b* value When the values are negative, the color is blue; when the a* value is positive and the b* value is negative, the color is purple; when the a* value is negative and the b* value is positive, the color is greenish). On the other hand, the material and thickness T152 of the first layer 152 maintain the above conditions, and when the material of the second layer 154 is magnesium fluoride and the thickness T154 is about 99.64 nm, the reflectivity of the dielectric optical layer 150 is about 85.61%, and its a* value is -14.8 and the b* value is 32.03. Or, when the material of the second layer 154 is yttrium oxide and the thickness T154 is about 91.95 nm, and the material of the first layer 152 is tantalum nitride and the thickness T152 is about 75.45 nm, the reflection of the dielectric optical layer 150 The rate is about 33.32%, and its a* value is -15.3 and the b* value is 48.2. From the above, the reflectance and chromaticity of the dielectric optical layer 150 vary depending on the material (change in refractive index) and thickness.

Of course, the material composition, the number of layers, and the thickness of the dielectric optical layer 150 of the present invention are not limited to the above. The reflectivity and chromaticity of the dielectric optical layer 150 also change with the combination of different materials, number of layers, and thickness. Taking the number of layers as an example, the material of the first layer 152 is titanium dioxide and the thickness T152 maintains the above conditions, while the material of the second layer 154 is yttria and the thickness T154 maintains the above conditions, and the dielectric optical layer 150 is composed of two layers. When the first layer 152 and the second layer 154 are formed, the dielectric optical layer 150 has a reflectance of about 45.7%, and has an a* value of -12.5 and a b* value of 6.54. Of course, the dielectric optical layer 150 may also be composed of a first layer 152 or a first layer 152 and a second layer 154.

The thickness of each dielectric layer can be modulated according to the formula 2nd=m λ of destructive interference (where n is the refractive index, d is the thickness, m is a positive integer, and λ is the wavelength) to achieve the desired reflectance, and The above thickness can also be fine tuned according to the chromaticity requirement. Big In vivo, when the desired reflectivity is low (eg, the reflectivity is less than 20%) and the chromaticity is bluish, the dielectric optical layer 150 can be selected from a high refractive index dielectric layer. The high refractive index dielectric layer refers to a dielectric layer having a higher refractive index than the substrate 110. For example, the material of the dielectric layer having a higher refractive index than the substrate 110 is, for example, tantalum nitride or titanium dioxide. On the other hand, when the desired reflectance is high (for example, the reflectance is 45% or more) and the chromaticity is greenish, the dielectric optical layer 150 may be alternately stacked by a plurality of layers of high refractive index and multilayer low refractive index dielectric layers. Made. The low refractive index is based on a high refractive index instead of the substrate 110 as a reference. That is, the refractive index of the low refractive index dielectric layer may be greater than, equal to, or less than the refractive index of the substrate 110.

The thickness of the dielectric optical layer 150 may be smaller than The thickness of a decorative pattern layer 120 (1 micron to 45 microns). In the present embodiment, the thickness T of the dielectric optical layer 150 is less than 2 microns. Since the thickness T is much smaller than the thickness of the conductive ink (thickness is about 7 micrometers to 10 micrometers), the marking pattern formed by the dielectric optical layer 150 in this embodiment can be compared to the marking pattern formed by the conductive ink. It has a better flatness, so that when the trace 140 has a requirement to cross the marking pattern, the problem of disconnection caused by excessively large deviation can be reduced.

3A is a top plan view of a touch panel in accordance with a second embodiment of the present invention. Fig. 3B is a schematic cross-sectional view taken along line B-B' of Fig. 3A. Referring to FIG. 3A and FIG. 3B , the touch panel 200 of the present embodiment is substantially the same as the touch panel 100 of FIG. 1A and FIG. 1B , and the same components are denoted by the same reference numerals, and details are not described herein again. Its role and relative configuration relationship.

The main difference between the touch panel 200 and the touch panel 100 is that the dielectric optical layer 150 of the touch panel 100 is formed behind the first decorative pattern layer 120 and the location of the marking pattern (ie, the configuration area of the dielectric optical layer 150). It is defined by the hollowed out area A3 of the first decorative pattern layer 120. In contrast, the position of the marking pattern of the touch panel 200 is directly defined by the dielectric optical layer 150 , and the dielectric optical layer 150 is formed before the first decorative pattern layer 120 . Further, the dielectric optical layer 150 of the present embodiment is formed on the substrate 110 and disposed in the peripheral region A, wherein the dielectric optical layer 150 can be defined by a mask. The first decorative pattern layer 120 covers the peripheral region A2 and the dielectric optical layer 150 located in the peripheral region A. Compared with the touch panel 100, since the second decorative layer 160 in FIG. 1B can be omitted in this embodiment, the touch panel 200 of the embodiment can reduce the steps and time of a process. Moreover, since the dielectric optical layer 150 of the present embodiment is made of a dielectric material, the electrical problem derived from the capacitive coupling effect between the trace 140 and the marking pattern can be improved, thereby making the touch panel 200 has a relatively stable electrical performance. Furthermore, the present embodiment can also modulate the refractive index and thickness of the dielectric optical layer 150 to meet different requirements of reflectivity and chromaticity, and can improve the occurrence of excessive deviation of the trace 140 when crossing the marking pattern. The disconnection problem.

In summary, the touch panel of the present invention forms a marking pattern with a dielectric optical layer. Since the material of the dielectric optical layer is a dielectric material, the electrical problem derived from the capacitive coupling effect between the trace and the mark pattern can be improved. In addition, the touch panel of the present invention can also over-adjust the refractive index and thickness of the dielectric optical layer. Degree, in order to meet the needs of different reflectivity and chromaticity, and can improve the disconnection problem caused by the excessive gap when the trace crosses the marking pattern.

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.

100‧‧‧ touch panel

110‧‧‧Substrate

120‧‧‧First decorative pattern layer

140‧‧‧Wiring

150‧‧‧Dielectric optical layer

160‧‧‧Second decorative pattern layer

A2‧‧‧ surrounding area

A3‧‧‧ hollow area

B‧‧‧Area

Claims (20)

A touch panel includes: a substrate having a display area and a peripheral area, the peripheral area being located on at least one side of the display area; a first decorative pattern layer covering the peripheral area and having a hollowed out area; The touch sensing component is disposed at least in the display area; the plurality of traces are electrically connected to the touch sensing elements and disposed in the peripheral region; and a dielectric optical layer is disposed on the substrate and opposite A void region should be provided; and a second decorative pattern layer disposed on the dielectric optical layer. The touch panel of claim 1, wherein the dielectric optical layer further covers an edge of the first decorative pattern layer adjacent to the dielectric optical layer. The touch panel of claim 2, wherein the dielectric optical layer covering an edge of the first decorative pattern layer is located between the first decorative pattern layer and the second decorative pattern layer. The touch panel of claim 1, wherein the material of the dielectric optical layer comprises ruthenium oxide, tantalum nitride, magnesium fluoride, titanium dioxide or a combination of at least two of the foregoing. The touch panel of claim 1, wherein the dielectric optical layer comprises a first layer and a second layer, the first layer is located between the second layer and the substrate, and the first The refractive index of the layer is greater than the refractive index of the second layer. The touch panel of claim 1, wherein the dielectric optical layer comprises a plurality of first layers and a plurality of second layers, each of the first layers having a refractive index greater than each The refractive index of the second layer, and one of the first layers is closer to the substrate than all of the second layers. The touch panel of claim 6, wherein the refractive index of each of the first layers falls within a range of 2 to 3, and the refractive index of each of the second layers falls within a range of 1 to 2. The touch panel of claim 1, wherein at least one of the traces partially covers the cutout and is disposed on the second decorative pattern layer. The touch panel of claim 1, wherein the dielectric optical layer has a thickness smaller than a thickness of the first decorative pattern layer. The touch panel of claim 1, wherein the dielectric optical layer has a thickness of less than 2 micrometers. The touch panel of claim 1, further comprising at least one pair of touch sensing elements that should be hollowed out, and the touch sensing element corresponding to the cutout is electrically independent of the location located in the display area Some touch sensing components. A touch panel includes: a substrate having a display area and a peripheral area, the peripheral area being located on at least one side of the display area; a dielectric optical layer disposed in the peripheral area; a first decorative pattern layer Covering the peripheral region and the dielectric optical layer; a plurality of touch sensing elements disposed at least in the display area; and a plurality of traces electrically connected to the touch sensing elements and disposed in the peripheral area Inside. The touch panel of claim 12, wherein the dielectric light The material of the layer includes yttria, tantalum nitride, magnesium fluoride, titanium dioxide or a combination of at least two of the foregoing. The touch panel of claim 12, wherein the dielectric optical layer comprises a first layer and a second layer, the first layer is located between the second layer and the substrate, and the first The refractive index of the layer is greater than the refractive index of the second layer. The touch panel of claim 12, wherein the dielectric optical layer comprises a plurality of first layers and a plurality of second layers, each of the first layers having a refractive index greater than a refractive index of each of the second layers And one of the first layers is closer to the substrate than all of the second layers. The touch panel of claim 15, wherein the refractive index of each of the first layers falls within a range of 2 to 3, and the refractive index of each of the second layers falls within a range of 1 to 2. The touch panel of claim 12, wherein at least one of the traces partially covers the dielectric optical layer and is disposed on the first decorative pattern layer. The touch panel of claim 12, wherein the dielectric optical layer has a thickness smaller than a thickness of the first decorative pattern layer. The touch panel of claim 12, wherein the dielectric optical layer has a thickness of less than 2 micrometers. The touch panel of claim 12, further comprising at least one pair of touch sensing elements that should be dielectric optical layers, and the touch sensing elements corresponding to the dielectric optical layer are electrically independent of the display The touch sensing elements in the area.