TW201610769A - Touch panel - Google Patents

Abstract

A touch panel includes a rigid substrate, a touch-control element, and a silicon-based strengthening layer. The touch-control element has a plurality of electrodes disposed on a surface of the substrate. The strengthening layer is disposed on the surface of the substrate and at least between a portion of the electrodes and the substrate such that the contact area of the electrodes and the substrate is less than 50% of the area of the substrate. The Young's Modulus of the silicon-based strengthening layer is less than 6.

Description

Touch panel

The present invention relates to a touch panel, and more particularly to a touch panel capable of improving the impact strength of a substrate.

Due to the human-computer interaction characteristics of the touch panel, it has been widely used in smart phones, GPS navigator systems, tablet PCs, personal digital assistants (PDAs), and notebook computers. (laptop PC) and other electronic products.

Generally, a touch panel or a touch device may include more than one hard substrate, such as glass or tempered glass, and the electronic components of the touch panel are directly formed on the surface of the rigid substrate. However, after the conductive film layer for fabricating the electronic component is formed on the surface of the hard substrate, the impact strength of the hard substrate is significantly reduced, thereby affecting the service life and reliability of the touch panel. Therefore, how to improve the impact strength of a hard substrate is still a subject of research in the industry.

The touch panel of the present invention comprises a silicon-based strengthening layer disposed between the hard substrate and at least a portion of the conductive layer to reduce the contact area between the substrate and the conductive layer, and the 矽-based strengthening layer of the Young's The Young's Modulus is no more than 60Gpa, which reduces the reflection of the shock wave on the contact interface between the substrate and the conductive layer during impact to improve the impact strength of the substrate and the service life of the touch panel.

The embodiment of the invention discloses a touch panel comprising a rigid substrate, a touch component and a germanium-based strengthening layer. The touch element has a plurality of electrodes disposed on a surface of the substrate, and the ruthenium-based strengthening layer is disposed on the surface of the substrate and at least partially located at the electrodes and the substrate The contact area between the electrodes and the substrate is less than 50% of the substrate area, and the Young's Modulus of the ruthenium-based strengthening layer is not more than 60 GPa.

100‧‧‧ touch panel

102‧‧‧Substrate

102a‧‧‧ surface

102b‧‧‧ sidewall

104‧‧‧Light transmission area

106‧‧‧ shading area

108‧‧‧Touch components

108X‧‧‧first axial electrode

108X1‧‧‧First electrode section

108X2‧‧‧First connection

108Y‧‧‧second axial electrode

108Y1‧‧‧Second electrode part

108Y2‧‧‧Second connection

1081‧‧‧electrode

1082,1083, 1084‧‧‧Electrode

1085‧‧‧First electrode

1086‧‧‧second electrode

110‧‧‧矽基层层

110a‧‧‧Rough surface

1101‧‧‧Contact hole

112‧‧‧Decorative layer

114‧‧‧ perimeter wiring

1141‧‧‧Lower wiring

1142‧‧‧ upper line

116‧‧‧Protective layer

1161‧‧‧First protective layer

1162‧‧‧Second protective layer

118‧‧‧Insulation

120, 122‧‧‧ conductive layer

124, 126‧ ‧Protection Department

128, 130‧‧‧ dielectric layer

132‧‧‧ junction area

136‧‧‧ joint pad

138‧‧‧First mesh layer

1381‧‧‧First grid line

140‧‧‧Second grid layer

1401‧‧‧second grid line

142, 144‧‧‧ patterned electrode layer

T‧‧‧ total thickness

FIG. 1 is a top plan view of a first embodiment of a touch panel of the present invention.

Fig. 2 is a partial cross-sectional view showing the touch panel shown in Fig. 1 along a tangential line A-A'.

3 is a partial cross-sectional view showing a second embodiment of the touch panel of the present invention.

4 is a partial cross-sectional view showing a third embodiment of the touch panel of the present invention.

FIG. 5 is a partial cross-sectional view showing a fourth embodiment of the touch panel of the present invention.

FIG. 6 is a partial cross-sectional view showing a fifth embodiment of the touch panel of the present invention.

FIG. 7 is a partial cross-sectional view showing a sixth embodiment of the touch panel of the present invention.

FIG. 8 is a partial cross-sectional view showing a seventh embodiment of the touch panel of the present invention.

Figure 9 is a partial cross-sectional view showing an eighth embodiment of the touch panel of the present invention.

FIG. 10 is a partial cross-sectional view showing a ninth embodiment of the touch panel of the present invention.

11 is a partial cross-sectional view showing a tenth embodiment of the touch panel of the present invention.

FIG. 12 is a top plan view showing an eleventh embodiment of the touch panel of the present invention.

Figure 13 is a partial cross-sectional view of the touch panel shown in Figure 12 along a tangential line B-B'.

Figure 14 is a top plan view showing a twelfth embodiment of the touch panel of the present invention.

Figure 15 is a top plan view showing a thirteenth embodiment of the touch panel of the present invention.

Figure 16 is a partial cross-sectional view showing the fourteenth embodiment of the touch panel of the present invention.

Figure 17 is a top plan view showing a fifteenth embodiment of the touch panel of the present invention.

Figure 18 is a partial cross-sectional view of the touch panel shown in Figure 17 along a tangential line C-C'.

Figure 19 is a top plan view showing a sixteenth embodiment of the touch panel of the present invention.

FIG. 20 is an enlarged schematic view showing a mesh pattern of a touch element of the touch panel of the present invention.

Figure 21 is a partial cross-sectional view showing the seventeenth embodiment of the touch panel of the present invention.

Figure 22 is a partial cross-sectional view showing the eighteenth embodiment of the touch panel of the present invention.

Figure 23 is a partial cross-sectional view showing the nineteenth embodiment of the touch panel of the present invention.

Figure 24 is a partial cross-sectional view showing a twentieth embodiment of the touch panel of the present invention.

Figure 25 is a partial cross-sectional view showing the twenty-first embodiment of the touch panel of the present invention.

Table 1 is a data table of a conventional touch panel and a touch panel of the present invention in a ball drop experiment.

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

Please refer to FIG. 1 and FIG. 2 . FIG. 1 is a top plan view of a touch panel according to a first embodiment of the present invention, and FIG. 2 is a partial cross-sectional view of the touch panel along the line A-A′ of FIG. 1 . schematic diagram. According to the first embodiment of the present invention, the touch panel 100 is exemplified by a one-piece substrate/one-glass (OGS) touch panel, but is not limited thereto. The touch panel 100 has a light-transmitting region 104 and a light-shielding region 106 on at least one side of the light-transmitting region 104. The light-shielding region 106 of the present embodiment surrounds the light-transmitting region 104, but is not limited thereto. The touch substrate 100 of the present invention comprises a transparent hard substrate 102, a touch element 108 (for example, a capacitive touch element), and a silicon-based strengthening layer 110. The material of the substrate 102 is rigid, and is, for example, a glass substrate or a plastic substrate, but is not limited thereto. The touch element 108 includes a plurality of electrodes disposed on a surface of the substrate 102, such as the surface 102a on the upper side of the substrate 102 shown in FIG. The touch element 108 of the present embodiment includes a plurality of first axial electrodes 108X and a plurality of second axial electrodes 108Y extending in different directions and insulated from each other. Each of the first axial electrodes 108X includes a plurality of first electrode portions 108X1 and a plurality of first connecting portions 108X2, wherein the first connecting portion 108X2 is used to connect the first electrode portions 108X1 of the same first axial electrode 108X, similar to The second axial electrode 108Y includes a plurality of second electrode portions 108Y1 and a plurality of second connecting portions 108Y2, wherein the second connecting portion 108Y2 is used to connect the second electrode portion 108V1 of the same second axial electrode 108Y. . In this embodiment The first electrode portion 108X1, the second electrode portion 108Y1, and the second connecting portion 108Y2 are made of the same layer of the patterned transparent conductive layer 120, and the first connecting portion 108X2 is formed by another patterned transparent conductive layer. The layer 122 is fabricated, wherein the conductive layer 122 is disposed on the side of the conductive layer 120 opposite to the substrate 102. The materials of the transparent conductive layers 120 and 122 are exemplified by indium tin oxide (ITO), indium zinc oxide (IZO) and aluminum zinc oxide (AZO), but not limited thereto. . Then, in other embodiments, the conductive layers 120, 120 may also include other suitable non-transparent conductive materials, such as silver, aluminum, copper, magnesium, molybdenum, composite layers of the above materials, or alloys of the above materials, such as the conductive layer 120. 120 may be a grid conductive layer comprising a non-transparent material. In addition, the touch panel 100 can further include an insulating layer 118 at least partially disposed between the first axial electrode 108X and the second axial electrode 108Y, for example, disposed on the first axial electrode 108X and the second The intersection of the axial electrodes 108Y is such that the first axial electrode 108X is insulated from the second axial electrode 108Y. The insulating layer 118 may be an inorganic insulating layer such as yttrium oxide (SiO2), tantalum nitride (SiNx) or lanthanum oxynitride (SiOxNy), or may be an organic insulating layer such as an epoxy resin. In the present embodiment, the insulating layer 118 includes a plurality of island-shaped insulating structures disposed between the first connecting portion 108X2 and the second connecting portion 108Y2, but is not limited thereto. In other embodiments, the insulating layer 118 may also be a strip-shaped insulating structure or cover the entire area of the light-transmitting region 104. The design can utilize the edge effect between the first electrode portion and the second electrode portion to perform touch sensing.

Furthermore, the ruthenium-based strengthening layer 110 is disposed on the surface of the substrate 102 and located between at least a portion of the first axial electrode 108X / the second axial electrode 108Y and the substrate 102 to be made of the transparent conductive layers 120, 122. The contact area of the touch element 108 or the first axial electrode 108X and the second axial electrode 108Y with the substrate 102 is less than 50% of the total area of the substrate 102. Therefore, the bismuth-based strengthening layer 110 is disposed at least in the transparent region 104. In other words, at least a portion of the ruthenium-based enhancement layer 110 in the light-transmissive region 104 may be located between the touch element 108 and the substrate 102 or directly in contact with the surface 102a of the substrate 102. In the present embodiment, the germanium-based strengthening layer 110 in the light-transmitting region 104 is disposed between the touch element 108 and the substrate 102, so that the touch element 108 is not in direct contact with the substrate 102. It should be noted that the material of the ruthenium-based strengthening layer 110 should have a characteristic that the wave impedance is smaller than the wave impedance of the substrate 102, and in the preferred case, the substrate 102 The difference between the wave impedance and the wave impedance of the ruthenium-based strengthening layer 110 should be greater than 5%. The wave impedance is the ability of the material to resist the transfer of momentum inside, and can also be called characteristic impedance, which can be defined as the density of the substance and the wave propagating within the substance. The product of speed. For example, when the material of the substrate 102 is glass, the ruthenium-based strengthening layer 110 may be selected from a Young's Modulus of not more than 60 GPa, such as a polyoxyalkylene material, and preferably, a polyfluorene. The reactive functional group in the oxyalkylene material (that is, the composition other than ruthenium and oxygen, in the present embodiment, for example, an aromatic hydroxy group or/and an alkenyl group) preferably accounts for 3 to 50% by weight, and the polyfluorene The Young's modulus of the oxyalkylene is controlled to be less than 6 GPa, preferably between 2 and 5 GPa; of course, in other embodiments, the reactive functional group may also be another functional group, such as a methyl group, specifically, for example It is a polydimethyl siloxane, but is not limited thereto, and a polyoxy siloxane having an inorganic oxime bond as a main component and a Young's modulus of not more than 60 GPa is suitable for use in the present invention. Further, the polyoxyalkylene oxide may be a thermosetting polyoxyalkylene which is synthesized by a lyotropic method or synthesized in another conventional manner, and is a thermosetting polyoxyalkylene in this embodiment. In addition, the ruthenium-based strengthening layer 110 may be formed on the substrate 102 by, for example, but not limited to, spin coating or slot-die, and then cured at 200-350 ° C, in this embodiment. In the above, it is considered that the characteristics of the components of the touch panel (such as the glass cover plate and the ink decorative layer) are not damaged as much as possible, and the curing temperature is preferably controlled at a temperature of 200 to 280 ° C to be cured, and more preferably controlled below 260 ° C. For example, using a curing temperature of 200 degrees or more and a result of a nanoindentation test, the higher the curing temperature, the lower the Young's modulus, but the higher the temperature, the less the functional group content. The upper Young's modulus should increase, but the experimental results show that the Young's modulus is reduced, and it is inferred that a large number of pores are formed inside the ruthenium-based strengthening layer 110 to cause such experimental results; and, the ruthenium-based strengthening layer The thickness of 110 is, for example, controlled to be greater than about 0.4 microns to about 50 microns, preferably greater than about 0.8 microns to about 50 microns, and most preferably greater than about 1.2 microns to about 50 microns, in this embodiment 2.5 microns is used. for example . Further, the ruthenium-based strengthening layer 110 may be a stack of one or more layers of structure, for example, may comprise a stack of the same or different layers of materials. It is to be noted that the curing process of the ruthenium-based strengthening layer 110 is preferably carried out under the atmosphere, but the invention is not limited thereto, and for example, it may be carried out under a nitrogen atmosphere. The materials and process conditions of the above-described ruthenium-based strengthening layer 110 are also applicable to all embodiments of the present invention.

The hard substrate 102 described above may be a strengthened glass substrate formed by chemical or chemical treatment. For example, the chemical strengthening treatment may be a chemical ion strengthening treatment. During the chemical ion strengthening treatment, the glass substrate to be strengthened may be placed in a molten potassium salt to ionize the potassium ions and the sodium ions on the surface of the glass substrate. The exchange produces a chemical strengthening layer, so that the surface layer of the glass substrate forms a compressive stress layer DOL, and an appropriate tensile stress TS is derived inside the glass substrate to achieve a force balance. The thicker the compressive stress layer DOL, the stronger the ability to restrain the crack growth of the glass surface layer, and the higher the strength of the strengthened glass substrate, the higher the ability of the glass surface to resist the impact of foreign objects. In this example, the chemical strengthening layer refers to the average depth at which potassium ions diffuse from the surface of the glass into the glass, and is preferably defined as the average of the maximum diffusion depth. The depth of diffusion can generally be known by the instrument detecting the presence of potassium ions. Since the diffusion depth still has different depths even under the same process, the average value of the diffusion depth is taken as the criterion. The relationship between the chemically strengthened layer and the compressive stress layer DOL, for example, is pointed out in the literature by Varshneya (1975), the depth of the ion exchange layer is slightly greater than the depth of the compressive stress layer DOL. In a glass process, if the tempered glass substrate after the initial chemical strengthening has been machined or material removed (for example, a cut tempered glass substrate), the treatment may cause the strengthened glass substrate to be derivatized without a strengthening layer. The newly formed surface (for example, the cut surface of the tempered glass substrate), the newly formed surface crack not covered by the reinforcing layer is relatively easy to grow and may lower the strength of the tempered glass substrate. Therefore, it is possible to reuse a secondary chemical strengthening treatment (for example, HF etching) to newly generate a surface region, or to reinforce the original strengthening layer which is weakened or partially removed due to machining or material removal treatment, etc. (for example, in tempered glass). The cut surface of the substrate is coated with a glue layer and the glue layer is cured to provide good tempered glass strength.

In the prior art, when a conductive layer such as a transparent conductive layer (for example, a wave impedance of ITO is 17.07*10 ⁶ ) is formed on the surface of the substrate of the touch panel, since the wave impedance of the transparent conductive layer is larger than the wave impedance of the hard substrate, When the surface of the substrate is struck by an external object, when the shock wave is transmitted through the substrate to the interface between the substrate and the conductive layer, the shock wave is reflected back into the substrate and interference is generated inside the substrate, so that the substrate is easily broken and damaged. In contrast, the present invention provides a ruthenium-based strengthening layer 110 having a wave impedance smaller than that of the substrate 102 and a Young's Modulus of not more than 60 GPa on the non-impinging surface of the substrate 102 (ie, the surface 102a), and the installation area is at least the substrate 102. More than 50% of the area, when the shock wave of the impact enters the inside of the substrate 102 from the impact surface of the substrate 102 and is conducted to the interface of the substrate 102 and the ruthenium-based strengthening layer 110 (ie, the surface 102a), because of the wave impedance of the ruthenium-based strengthening layer 110 It is smaller than the wave impedance of the substrate 102 and the Young's Modulus is not more than 60 GPa, so that the ratio of the seismic wave penetrating the substrate 102 can be increased, so that the interference of the shock wave inside the substrate 102 is greatly reduced, and the shock wave caused by the external force can be further reduced. Effectively transferring from the substrate 102 to the ruthenium-based strengthening layer 110 via the substrate 102 and the ruthenium-based strengthening layer 110, the external force can be dissipated to damage the substrate 102 even if the wave resistance of the transparent conductive layer 120 on the upper side of the ruthenium-based strengthening layer 110 is Up to 17.07*10 ⁶ and larger than the ruthenium-based strengthening layer 110, the arrangement of the ruthenium-based strengthening layer 110 can still provide good collision resistance of the substrate 102.

Please refer to Table 1. Table 1 is a data table of a conventional touch panel and a touch panel of the present invention in a ball drop experiment. In the experiment, the falling ball is dropped from the height to the center/heart point of the touch panel, and the height of the substrate is broken. The weight of the falling ball is 130 grams, the conductive material layer on the surface of the substrate faces downward, and the highest test height of the falling ball. It is 110 cm, and both the touch panel of the present invention and the conventional touch panel use the same substrate material and conductive material. It can be seen from Table 1 that when the conventional touch panel is provided with a conductive material on the surface of the substrate, the average ball landing height of the substrate is 5 cm, and when the ruthenium-based strengthening layer is disposed on the surface of the substrate of the touch panel of the present invention, the substrate is The average height of the falling ball is 78.5 cm. It can be seen that after the touch panel of the present invention is provided with a ruthenium-based strengthening layer on the surface of the substrate, even if a conductive material is disposed on the substrate, the collision resistance of the substrate can be greatly improved by about 15 times. The effect is quite remarkable.

Referring to FIG. 2 again, the touch panel 100 of the present invention may further include a decorative layer 112 disposed in the light shielding region 106. The decorative layer 112 may be formed of an ink or a photoresist material, but is not limited thereto. When the decorative layer 112 is a non-black ink material, the total thickness T thereof is between about 5 and 40 microns, and may be a single layer ink or a multilayer ink stack, a single layer photoresist or a multilayer photoresist stack or by at least one photoresist layer. A structure in which a layer of ink is stacked. In various embodiments, the decorative layer 112 may also be formed by stacking ink layers or photoresist layers of different colors. As shown in FIG. 2, the ruthenium-based strengthening layer 110 may be at least partially extended to the decorative layer 112 and cover the decorative layer 112, and the touch element 108 also partially covers the decorative layer 112. Therefore, the decorative layer 112 of the embodiment is located at a portion. The ruthenium-based enhancement layer 110 and the substrate 102 are also located between the touch element 108 and the substrate 102 of the light-shielding region 106. In addition, the touch panel 100 further includes at least one peripheral trace 114 (three strips are drawn in FIG. 2 ) disposed on the decorative layer 112 and electrically connected to the corresponding first axial electrode 108X and second axial electrode 108Y. The touch element 108 of the present embodiment extends directly to the decorative layer 112 to be in electrical contact with the corresponding peripheral trace 114, and the germanium-based enhancement layer 110 of FIG. 2 does not cover the peripheral trace 114. In addition, the other end of the peripheral trace 114 can be electrically connected to an external driving circuit (not shown). In addition, the touch panel 100 further includes a passivation 116 covering the peripheral traces 114 and the touch elements 108. The protective layer 116 of the embodiment may be made of an inorganic material, for example, including yttrium oxide (SiO2). a material of tantalum nitride (SiNx) or yttrium oxynitride (SiOxNy), and the protective layer 116 may also be composed of an organic material, for example, a resin material such as photoresist or PI. But it is not limited to this. Alternatively, the material of the protective layer 116 may be the same as the ruthenium based strengthening layer 110 to reduce the complexity of the manufacturing process and conditions. Of course, in other embodiments, the ruthenium-based strengthening layer may be formed first, and then the decorative layer may be formed. Therefore, a protective layer (the material may be the same as the protective layer 116) may be formed on the surface of the ruthenium-based strengthening layer. Surface modification (such as surface plasma treatment) to allow the decorative layer to adhere more firmly to the ruthenium-based reinforcement layer.

Please refer to FIG. 3 , which is a partial cross-sectional view showing a second embodiment of the touch panel of the present invention. Compared with the previous embodiment, the ruthenium-based strengthening layer 110 in this embodiment may be subjected to a surface treatment to form a rough surface 110a, which reduces the reflection of the light by the subsequent conductive layer, especially when the touch element 108 includes In the case of a metallic material, the ruthenium-based strengthening layer 110 having a rough surface 110a can further reduce the phenomenon of visual bright spots. In addition, the ruthenium-based strengthening layer 110 of the present embodiment extends outward to the sidewall 102b of the substrate 102 and is coated on the sidewall 102b to further enhance the side protection of the substrate 102. It should be noted that the design of the rough surface 110a and the cladding sidewall 102b of the ruthenium-based strengthening layer 110 of the present embodiment can be applied to various embodiments and variations of the present invention, and details are not described herein.

Please refer to FIG. 4, which is a partial cross-sectional view showing a third embodiment of the touch panel of the present invention. The difference between this embodiment and the first embodiment is that the protective layer 116 may include a first protective layer 1161 and a second protective layer 1162, and at least one of the first protective layer 1161 and the second protective layer 1162 may be made of inorganic materials or Made up of organic materials. For example, the first protective layer 1161 is composed of a thinner inorganic material layer, and the second protective layer 1162 is composed of a thicker organic material layer, but not limited thereto, the order of the two is interchangeable. Moreover, the material of one of the first protective layer 1161 and the second protective layer 1162 may be the same as the material of the ruthenium-based strengthening layer 110 to reduce the complexity of the process and conditions.

Please refer to FIG. 5. FIG. 5 is a partial cross-sectional view showing a fourth embodiment of the touch panel of the present invention. The difference between this embodiment and the third embodiment is that the second protective layer 1162 has a patterned design. The second protective layer 1162 covers the decorative layer 112 and the peripheral traces 114 in the light-shielding region 106, and only in the transparent region 104. The second connecting portion 108Y2 overlaps the first connecting portion 108X2 to cover the touch element 108. It should be noted that the design of the first and second protective layers 1161, 1162 of the protective layer 116 in this embodiment and the foregoing embodiment may be applied to subsequent embodiments and variations thereof, and the second protective layer 1162 may be If there is a patterned design as needed, even if the corresponding pattern of the subsequent embodiment does not depict the protective layer 116, applying the protective layer 116 of FIGS. 4 and 5 to the embodiments of the present invention is within the scope of the present invention. .

Please refer to FIG. 6. FIG. 6 is a partial cross-sectional view showing a fifth embodiment of the touch panel of the present invention. In contrast to the first embodiment illustrated in FIG. 2, the ruthenium-based enhancement layer 110 of the present embodiment may cover at least a portion of the perimeter traces 114 in the region of the trim layer 112 to provide further protection of the perimeter traces 114. Since the peripheral traces 114 are generally electrically connected to the electrodes of the corresponding touch elements 108, the ruthenium-based enhancement layer 110 of the present embodiment preferably includes at least one contact hole 1101, exposing a portion of the peripheral traces 114, and touching At least one of the electrodes of the control element 108 is electrically coupled to the peripheral trace 114 by the contact hole 1101. The peripheral traces 114 of the present embodiment and the electrodes of the touch element 108 are formed by different film layers. For example, the peripheral traces 114 are made of metal or a layer of conductive material, such as silver, aluminum, copper, magnesium, The metal layer of molybdenum or the like, the composite layer of the above materials or the alloy layer of the above materials, and the electrode of the touch element 108 is composed of the transparent conductive layer 120, and the materials thereof are as described in the foregoing embodiments, and will not be described again. However, the material of the peripheral trace 114 and the touch element 108 of the present invention is not limited to this embodiment. Moreover, the patterned transparent conductive layer 120 may further include a plurality of protection portions 124 disposed on the surface of the ruthenium-based enhancement layer 110 and corresponding to the peripheral traces 114. For example, the protection portion 124 may have the same structure as the peripheral traces 124. The shape or pattern, or the guard 124 at least partially covers the perimeter trace 114. The protection portion 124 can further protect the peripheral traces 110, so as to prevent the chemical liquid of the patterned conductive layer 120 from infiltrating the ruthenium-based enhancement layer 110 and damage the peripheral traces 114 when the touch element 108 is subsequently formed, thereby causing wire breakage or electrical occurrence. The problem of the defect is as shown in Fig. 6. The protective portion 124 of the present embodiment and the first electrode portion 108X1, the second electrode portion 108Y1, and the second connecting portion 108Y2 are each formed by patterning the same transparent conductive layer 120. In addition, although the protective layer 116 of the present embodiment has only a single layer structure similar to the first embodiment, in other variations, the protective layer of the touch panel 100 may also have the same as shown in FIG. 4 or FIG. A double layer of protective layer, and the upper protective layer therein may have a patterned design.

Please refer to FIG. 7. FIG. 7 is a partial cross-sectional view showing a sixth embodiment of the touch panel of the present invention. schematic diagram. The difference between this embodiment and the previous embodiment is that the protection portion 126 on the upper side of the peripheral trace 114 has a block design, which simultaneously covers a plurality of peripheral traces 114, and can also provide the function of protecting the peripheral traces 114.

Please refer to FIG. 8. FIG. 8 is a partial cross-sectional view showing a seventh embodiment of the touch panel of the present invention. The main difference between the touch panel 100 of the present embodiment and the first embodiment shown in the second figure is that the peripheral traces 114 are disposed on the ruthenium-based enhancement layer 110, so that the ruthenium-based enhancement layer 110 is located at the periphery of the opaque region 106. Between the line 114 and the decorative layer 112. Since the touch element 108 and the peripheral traces 114 are both located on the germanium-based enhancement layer 110, the touch elements 108 extending to the light-shielding region 106 can be electrically connected to the corresponding peripheral traces 114 via direct contact with the peripheral traces 114. . In a variant embodiment, the peripheral trace 114 and a portion of the touch element 108 may also be formed by the same patterned conductive layer, that is, the portion of the touch element 108 extending to the light-shielding region 106 may be regarded as the peripheral trace 114. Furthermore, the ruthenium-based strengthening layer 110 of the present embodiment extends over the entire decorative layer 112, but is not limited thereto. It should be noted that, in FIG. 8 , the protective layer covering the surface of the peripheral trace 114 and the touch component 108 is not shown. The touch panel 100 of the embodiment may further include the protective layer 116 as in the foregoing embodiment, for example, protection. The layer may have a single layer or a double layer structure, and one of the protective layers may have a patterned design, and the subsequent embodiments are the same, and will not be described again.

Please refer to FIG. 9. FIG. 9 is a partial cross-sectional view showing the eighth embodiment of the touch panel of the present invention. The biggest difference between this embodiment and the foregoing embodiment is that the peripheral trace 114 includes a double layer structure of the lower trace 1141 and the upper trace 1142, wherein the lower trace 1141 can be composed of metal or highly conductive material, and the upper trace 1142 The patterned transparent conductive layer 120 constituting the first electrode portion 108X1, the second electrode portion 108Y1, and the second connecting portion 108Y2 may be formed, wherein the upper trace 1142 of each peripheral trace 114 is preferably coated on the lower trace 1141. The outer side is to further protect the lower trace 1141. However, the upper traces 1142 of the present embodiment can also be regarded as the protection portions 124 of FIG. 6, corresponding to one trace 114 (ie, the lower trace 1141 of FIG. 9) and covering the entire trace 114.

Please refer to FIG. 10 , which is a partial cross-sectional view of a ninth embodiment of the touch panel of the present invention. Schematic diagram. Compared with the first embodiment, the touch panel 10 of the present embodiment further includes a dielectric layer 128 disposed between the ruthenium-based enhancement layer 110 and the substrate 102 to increase the adhesion between the subsequent layers and the substrate 102. The dielectric layer 128 is preferably an inorganic material such as cerium oxide (SiO2), cerium nitride (SiNx) or cerium oxynitride (SiOxNy). Preferably, the wave impedance of the dielectric layer 128 is similar to the wave impedance of the substrate 102, for example, the difference in wave impedance between the dielectric layer 128 and the substrate 102 is less than 5%. The arrangement of the medium layer 128 in this embodiment can be applied to other embodiments of the present invention, and details are not described herein again.

Please refer to FIG. 11. FIG. 11 is a partial cross-sectional view showing a tenth embodiment of the touch panel of the present invention. The main difference between this embodiment and the first embodiment is that the touch panel 100 further includes a dielectric layer 130 disposed on the ruthenium-based enhancement layer 110 to increase the interface adhesion between the subsequent film layer and the ruthenium-based reinforcement layer 110. . The dielectric layer 130 may be an inorganic material layer including, for example, cerium oxide, cerium nitride or cerium oxynitride. Further, in the light-shielding region 106, the dielectric layer 130 is located between the peripheral traces 114 and the ruthenium-based enhancement layer 110. The arrangement of the dielectric layer 130 in this embodiment can be applied to other embodiments of the present invention and will not be described again.

Please refer to FIG. 12 and FIG. 13 . FIG. 12 is a top plan view of the eleventh embodiment of the touch panel of the present invention, and FIG. 13 is a partial view of the touch panel along the tangential line B-B′ of FIG. 12 . Schematic diagram of the section. In this embodiment, the touch element 108 includes a plurality of electrodes 1081 and a plurality of electrode portions 1082, and each of the electrodes 1081 and the electrode portions 1082 are insulated from each other, and the touch panel 100 utilizes adjacent electrodes 1081 and electrode portions. The edge effect between 1082 is used for touch sensing. The electrode 1081 and the electrode portion 1082 are preferably formed by the same layer of patterned electrode layers, such as a transparent conductive layer 120 or a metal mesh layer (not shown), but are not limited thereto. The electrode 1081 and the electrode portion 1082 can be electrically connected to a peripheral trace 114, respectively. The touch panel 100 of the present embodiment further includes a decorative layer 112, a ruthenium-based strengthening layer 110 and a protective layer 116 disposed on the surface 102a of the rigid substrate 102. For a change of the relative position and arrangement relationship of the ruthenium-based layer 110 and the slabs 114 and the slabs 112, reference may be made to other arrangements of the foregoing embodiments, and details are not described herein.

Please refer to FIG. 14 , which is a top plan view of a twelfth embodiment of the touch panel of the present invention. The difference between this embodiment and the previous embodiment is that the touch component 108 can include two opposite electrode portions 1083 and 1084 whose opposite width directions are opposite, wherein the electrode portions 1083 and 1084 are preferably The same layer of patterned conductive layers are formed, such as conductive layer 120 in the previous embodiment. In the touch panel 100 of the present embodiment, in addition to the shape and structure design of the touch element 108, the structure and arrangement of the ruthenium-based reinforcing layer, the peripheral trace, the protective layer and the decorative layer can be referred to the foregoing embodiments. ,No longer.

Please refer to FIG. 15 , which is a top plan view of a thirteenth embodiment of the touch panel of the present invention. The touch element 108 of the touch panel 100 of the present embodiment includes double-layer patterned electrode layers 142 and 144 with an insulating layer (not shown) disposed therebetween to form a plurality of capacitive sensing structures. The patterned electrode layer 142 includes a plurality of strip-shaped first electrodes 1085, and the patterned electrode layer 144 includes a plurality of strip-shaped second electrodes 1086, wherein the first electrodes 1085 and the second electrodes 1086 are disposed to cross each other, in a vertical In the projection direction, the first electrode 1085 and the second electrode 1086 are substantially perpendicular to each other, but are not limited thereto. The touch panel 100 utilizes a capacitive sensing change between the first electrode 1085 and the second electrode 1086 to provide a touch sensing function. The overlapping area or the line width of the first electrode 1085 and the second electrode 1086 can be adjusted separately in consideration of the value of the sensing capacitance. In other embodiments, the first electrode 1085 and the second electrode 1086 may have other shapes, and are not limited to the strip electrodes in FIG. When the touch panel 100 is disposed on a display element, and the patterned electrode layer 142 is closer to the display element than the patterned electrode layer 144, the area or line width of the first electrode 1085 is preferably larger than the area of the second electrode 1086 or Line width, but not limited to this. For example, the patterned electrode layers 142, 144 may be transparent conductive layers or metal mesh layers, respectively. In addition, the first electrode 1085 and the second electrode 1086 are electrically connected to a peripheral trace 114, respectively, and the touch panel 100 of the embodiment further includes the ruthenium-based strengthening layer mentioned in the foregoing embodiment, wherein the ruthenium-based strengthening layer and the periphery For the relative position and configuration relationship of the routing and the decorative layer, refer to the foregoing embodiment, and details are not described herein.

Please refer to FIG. 16. FIG. 16 is a partial cross-sectional view showing the fourteenth embodiment of the touch panel of the present invention. Compared with FIG. 2, the main difference of this embodiment is that the ruthenium-based strengthening layer 110 is first formed on the surface 102a of the substrate 102 to form the decorative layer 112, and then the ruthenium-based strengthening layer 110 and the decorative layer 112 are fabricated. Such as the touch element 108, the peripheral trace 114 and other components. That is, in the light shielding region 106 of the touch panel 100 of the present embodiment, the ruthenium-based strengthening layer 110 is located between the decorative layer 112 and the substrate 102.

Please refer to FIG. 17 and FIG. 18 , FIG. 17 is a top view of the fifteenth embodiment of the touch panel of the present invention, and FIG. 18 is a partial view of the touch panel along the line C-C′ of FIG. 17 . Schematic diagram of the section. Compared with the first embodiment shown in FIG. 1 and FIG. 2, the conductive layer 122 (forming the first connecting portion 108X2) of the present embodiment is disposed on the conductive layer 120 (forming the first electrode portion 108X1 and the second electrode portion). The lower side of the 108Y1 and the second connecting portion 108Y2), since the width of the first connecting portion 108X2 is generally less than 200 micrometers, the patterned conductive layer 122 occupies a smaller area than the first electrode portion 108X1 and the second electrode portion 108Y1, And less than 50% of the area of the substrate 102, and more than 10% of the area of the substrate 102, and even less than 1% of the area of the substrate 102. Therefore, the first connection portion 108X2 or the conductive layer 122 can be directly formed in this embodiment. On the surface 102a of the substrate 102, a ruthenium-based enhancement layer 110 is then formed. As can be seen from the figure, the area of the ruthenium-based enhancement layer 110 directly contacting the substrate 102 is significantly larger than 50% of the area of the substrate 102, which can effectively reduce the impact wave transmission. The shock reflection occurring when the interface between the substrate 102 and the conductive layer 122 is increased improves the overall impact strength of the touch panel 100. Even if the area of the ruthenium-based strengthening layer 110 directly contacting the substrate 102 is greater than 90% of the area of the substrate 102, the touch panel can provide better impact resistance, such as strengthening the glass substrate against cracking during the ball drop test. In addition, in the variation of the embodiment, reference may be made to the design of the single-layer or double-layer protective layer and the protective layer having the patterned pattern, the ruthenium-based strengthening layer of the light-shielding region, the peripheral trace, the decorative layer, and the first embodiment. The relative position design of the second electrode portion and the material selection of each of the above-mentioned film layer elements will not be described again. In another embodiment, the insulating layer 118 in FIGS. 17 and 18 may be formed in the same process as the ruthenium-based strengthening layer 110. In this case, it is equivalent to burying the via in the ruthenium-based strengthening layer 110. The first electrode portion 108X1, the second electrode portion 108Y1, and the second connecting portion 108Y2 are further provided, and the first electrode portion 108X1 is electrically connected to the first connecting portion 108X2 via via.

Referring to FIG. 19 and FIG. 20, FIG. 19 is a top plan view of a sixteenth embodiment of the touch panel of the present invention, and FIG. 20 is an enlarged schematic view showing a grid pattern of the touch element of the touch panel of the present invention. When the touch element 108 of the touch panel 100 of the present invention is composed of a grid electrode, for example, a metal mesh layer, the area of the entire light-transmissive area 104 of the grid electrode is approximately 1% to 15%, so the surface of the substrate 102 of the touch panel 100 of the present invention may also be first set by the grid electrode shape. The touch element 108 is formed, and the germanium-based strengthening layer 110 is further disposed. As shown in FIG. 19, the touch element 108 of the present embodiment includes a plurality of first axial electrodes 108X and a plurality of second axial electrodes 108Y extending in different directions, and both are grid electrodes. For example, they are respectively composed of different metal mesh layers, and an insulating layer is disposed between the two metal mesh layers to insulate the first axial electrode 108X from the plurality of second axial electrodes 108Y from each other. For example, the mesh pattern of the grid electrode constituting the touch element 108 of the present embodiment may have a hexagonal pattern of continuous stacking as shown in the diagram (1) of FIG. 20, and the adjacent first axis Between the electrode 108X or the adjacent second axial electrode 108Y, the mesh pattern of the insulating portion thereof may be as shown in the diagram (2) of FIG. 20, and the hexagonal grid has a broken pattern to achieve Insulation effect. It should be noted that the mesh pattern of the present invention is not limited to a hexagonal pattern, and may be other different designs such as a polygon, a circle, an ellipse or an irregular pattern. Furthermore, although the first and second axial electrodes 108X and 108Y in the form of a straight strip are schematically illustrated in FIG. 19, the touch element 108 of the touch panel 100 of the present invention may have other shapes, for example, having a diamond shape or the foregoing. The patterns of other embodiments are not limited thereto.

Further embodiments relating to the grid electrode application in the structural design of the present invention are continued below. Please refer to FIG. 21. FIG. 21 is a partial cross-sectional view showing the seventeenth embodiment of the touch panel of the present invention. The touch panel 100 of the present embodiment includes a plurality of first grid electrodes and second grid electrodes, such as the first axial electrode 108X and the second axial electrode 108Y shown in FIG. 20, but not limited thereto. . The first axial electrode 108X is composed of a first mesh layer 138, and includes a plurality of first grid lines 1381 disposed directly on the surface 102a of the substrate 102, on which the ruthenium-based strengthening layer 110 having insulating properties is disposed. The second axial electrode 108Y is composed of the second mesh layer 140, and includes a plurality of first mesh lines 1401 disposed on the ruthenium-based enhancement layer 110, and the second mesh can be formed by the ruthenium-based enhancement layer 110. Layer 140 is insulated from first mesh layer 138. The first mesh layer 138 of the present embodiment further forms at least one peripheral trace 114 and a bonding pin 136 located in the light shielding region 106 and disposed on the decorative layer 112, wherein the region where the bonding pad 136 is disposed is defined as The splicing region 132, the second mesh layer 140 also includes at least one peripheral trace 114 located in the opaque region 106 and disposed on the ruthenium-based enhancement layer 110, wherein the peripheral traces 114 formed by the second grid layer 140 are via 矽Contact holes 1101 in the base reinforcement layer 110 are electrically connected to corresponding joints Pad 136 is configured to electrically connect first axial electrode 108X and second axial electrode 108Y to a bond pad 136 via respective peripheral traces 114 and to an external control element. As shown in FIG. 21, although the first axial electrode 108X of the present embodiment is directly disposed on the surface of the substrate 102, since the first axial electrode 108X is composed of the first mesh layer 138, the general grid electrode is The width is between 0.5 micrometers and 10 micrometers, so the contact area of the first grid line 1381 with the surface 102a of the substrate 102 is less than 50% of the area of the substrate 102, and may be less than 15% of the area of the substrate 102. Even more than 5% of the area of the substrate 102, and the direct contact area of the ruthenium-based strengthening layer 110 with the substrate 102 is greater than 50% of the area of the substrate 102, so that the impact wave is still effectively reduced on the substrate 102 and the conductive film layer ( For example, the seismic reflection of the interface formed by the first mesh layer 138) enhances the impact bearing force of the substrate 102. It should be noted that the design of the touch element 108 in the mesh layer can be applied to various designs of the touch element 108 of the foregoing embodiment, and the peripheral traces 114 can be connected to at least a portion of the touch elements 108. Made with the same process.

Please refer to FIG. 22, which is a partial cross-sectional view showing the eighteenth embodiment of the touch panel of the present invention. The difference between this embodiment and the previous embodiment is that the ruthenium-based enhancement layer 110 does not cover most of the bond pads 136, and the peripheral traces 114 formed by the second mesh layer 140 cover a portion of the ruthenium-based enhancement layer 110 and The contact pads 136 are in direct contact with and electrically connected, so that the contact holes 1101 are not required to be disposed in the ruthenium-based reinforcement layer 110. The bond pads 136 of the present embodiment are still formed by the first mesh layer 138 and disposed on the decorative layer 112.

Please refer to FIG. 23. FIG. 23 is a partial cross-sectional view showing the nineteenth embodiment of the touch panel of the present invention. The difference between this embodiment and the seventeenth and eighteenth embodiments is mainly that the bonding pad 136 is formed by the second mesh layer 140, so when the peripheral trace 114 is formed by the first mesh layer 138, The second mesh layer 140 of the upper layer may be connected to and electrically connected to the bonding pad 136 by the contact hole 1101 in the germanium-based strengthening layer 110. According to this embodiment, the partial peripheral traces 114 may also include a lower trace 1141 and an upper trace 1142, respectively formed by the first mesh layer 138 and the second mesh layer 140, wherein the lower trace 1141 extends. The first axial electrode 108X is formed by the first mesh layer 138, and the upper trace 1142 is extended to the corresponding bonding pad 136. another In one aspect, the second axial electrode 108Y is directly connected to each of the corresponding peripheral traces 114 formed by the second mesh layer 140, and is electrically connected to the corresponding bonding pad 136 via the peripheral trace 114.

Please refer to FIG. 24, which is a partial cross-sectional view showing a twentieth embodiment of the touch panel of the present invention. The difference between this embodiment and the previous embodiment is that the ruthenium-based enhancement layer 110 does not cover a portion of the peripheral traces 114, so that at least a portion of the peripheral traces 114 formed by the first grid layer 138 are directly disposed on the upper side thereof and are The bond pads 136 formed by the second mesh layer 140 are connected without the need to electrically connect the two via the contact holes 1101 of the ruthenium-based enhancement layer 110 as in the previous embodiment. Alternatively, it can be considered that the partial peripheral traces 114 include both the lower trace 1141 and the upper trace 1142, which are stacked on top of each other to be electrically connected to each other.

Please refer to FIG. 25, which is a partial cross-sectional view showing the twenty-first embodiment of the touch panel of the present invention. In the present embodiment, the bonding pad 136 is formed by the second mesh layer 140 and located on the ruthenium-based strengthening layer 110, and the ruthenium-based strengthening layer 110 completely covers the decorative layer 112 and the first mesh layer 138 of the light-shielding region, and is bonded. Pad 136 is electrically coupled to corresponding peripheral traces 114 formed by first mesh layer 138 via contact holes 1101 of ruthenium-based enhancement layer 110. On the other hand, it can be considered that each of the peripheral traces 114 includes both the lower trace 1141 and the upper trace 1142. The lower trace 1141 is connected to the upper trace 1142 via the contact hole 1101 and electrically connected to the bonding pad 136.

Compared with the prior art, the surface of the rigid substrate of the touch panel of the present invention is provided with a ruthenium-based strengthening layer having a Young's modulus of not more than 60 GPa, and the area of the ruthenium-based strengthening layer directly contacting the substrate surface is greater than 50% of the substrate area. Or the area of the conductive material directly contacting the surface of the substrate is less than 50% of the area of the substrate by the arrangement of the ruthenium-based strengthening layer, which can effectively improve the reflection of the shock wave on the substrate and the conductive material interface when the touch panel is impacted. The problem of substrate rupture effectively improves the impact tolerance of the touch panel. In addition, since the polyoxyalkylene contains a Si-O-Si bond and functions as a main chain structure, its optical characteristics, outgassing, and thermal stability are also better, so that the touch panel can be made electrically. Properties such as sex and optics can be maintained at a certain quality. That is to say, during the process of the touch panel, the polysiloxane does not have a color change (for example, yellowing or white fog), and the amount of outgassing is small, so that the touch element is not easily caused. The resistance rises a lot.

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.

100‧‧‧ touch panel

102‧‧‧Substrate

102a‧‧‧ surface

104‧‧‧Light transmission area

106‧‧‧ shading area

108‧‧‧Touch components

108X‧‧‧first axial electrode

108X1‧‧‧First electrode section

108X2‧‧‧First connection

108Y‧‧‧second axial electrode

108Y2‧‧‧Second connection

110‧‧‧矽基层层

112‧‧‧Decorative layer

114‧‧‧ perimeter wiring

116‧‧‧Protective layer

118‧‧‧Insulation

120, 122‧‧‧ conductive layer

T‧‧‧ total thickness

Claims (15)

A touch panel includes: a rigid substrate; a touch element having a plurality of electrodes disposed on a surface of the substrate; and a silicon-based strengthening layer disposed on the substrate The surface is at least partially between the electrodes and the substrate such that the contact area of the electrodes with the substrate is less than 50% of the area of the substrate, and the Young's Modulus of the bismuth-based strengthening layer (Young's Modulus) ) no more than 60Gpa. The touch panel of claim 1, wherein the ruthenium-based strengthening layer comprises polyoxyalkylene. The touch panel of claim 2, wherein the ruthenium-based strengthening layer comprises a thermosetting polyoxyalkylene. The touch panel of claim 2, wherein the polyoxyalkylene is synthesized by a sol gel method. The touch panel of claim 2, wherein the reactive functional group in the polyoxyalkylene is from 3 to 50% by weight. The touch panel of claim 2, wherein the 矽-based strengthening layer has a Young's modulus of less than 6 GPa. The touch panel of claim 1, wherein the ruthenium-based strengthening layer has a thickness of from 0.4 micrometers to 50 micrometers. The touch panel of claim 1 , which has a light-transmissive area and a light-shielding area, the light-shielding area is located on at least one side of the light-transmissive area, and the touch panel further includes a decorative layer disposed in the light-shielding area Inside. The touch panel of claim 8 includes at least one peripheral trace disposed in the light-shielding region and electrically connected to the touch component. The touch panel of claim 8, wherein the ruthenium-based reinforcement layer is disposed in the light-transmissive region and extends to the light-shielding region and between the decorative layer and the substrate. The touch panel of claim 8, wherein the ruthenium-based reinforcement layer is disposed on the light-transmissive region and extends to the light-shielding region and is disposed on the surface of the decorative layer such that the decorative layer is located in a portion of the ruthenium-based reinforcement layer Between the substrates. The touch panel of claim 10 or 11, comprising a protective layer disposed between the ruthenium-based strengthening layer and the decorative layer. The touch panel of claim 10 or 11, comprising an inorganic dielectric layer disposed between the ruthenium-based strengthening layer and the substrate. The touch panel of claim 1, wherein a part of the electrodes is directly disposed on the surface of the substrate, and the area of the ruthenium-based strengthening layer directly disposed on the surface of the substrate accounts for at least 90% of the area of the substrate. The touch panel of claim 1, wherein the hard substrate is a tempered glass, and the electrodes are made of a transparent conductive material or a metal.