TW201502895A - Touch panel, touch displa panel and method of fabricating touch panel - Google Patents

Abstract

A touch panel includes a glass substrate, a barrier layer, a plurality of ions and a touch device. The glass substrate has a tin side and an opposite side opposite to each other. The barrier layer is disposed on the opposite side of the glass substrate. The ions are located inside the tin side and the air side of the glass substrate and in the barrier layer, and the ions in the barrier layer are distributed decreasingly from the side away from the glass substrate toward the glass substrate. The touch device is disposed on the tin side of the glass substrate.

Description

Touch panel, touch display panel and method of manufacturing touch panel

The invention relates to a touch panel, a touch display panel and a method for manufacturing the touch panel, in particular to a touch panel, a touch display panel and a method for manufacturing the touch panel which can avoid warpage of the glass substrate.

Touch panels have been widely used in the input interface of electronic devices because of their human-computer interaction characteristics. The touch panel is mainly formed by using a glass substrate as a substrate and forming a touch element on the glass substrate. In order to improve the surface flatness of the glass substrate, the glass substrate is produced using, for example, a float glass process. The float glass process places a molten glass solution on a tin solution, wherein one side of the glass solution is in contact with the tin solution, and the other side of the glass solution is exposed to the air, and is in a molten state to form a solid after cooling and solidification. glass substrate. The glass substrate formed by the float glass process will have a tin surface and an opposite surface. In addition, in order to increase the strength, a strengthening process is performed after the glass substrate is completed. In general, the intensive process immerses the glass substrate in a potassium nitrate solution, and the sodium ions in the glass substrate diffuse with potassium ions in the potassium nitrate solution, and the larger potassium ions enter the glass to replace the smaller sodium. The position of the ions changes the lattice structure of the glass substrate to achieve a strengthening effect.

However, since the tin ions contained in the tin surface of the glass substrate hinder the entry of potassium ions into the glass substrate, the amount of potassium ions entering the opposite surface after the strengthening process is more than the amount of potassium ions entering the tin surface, resulting in the glass substrate. The stress between the tin surface and the opposite surface is unbalanced, causing the glass substrate to warp. In the trend of thinning the touch panel, the thickness of the glass substrate is getting thinner and thinner. The warpage problem of this glass substrate is more serious and needs further improvement.

One of the objectives of the present invention is to provide a touch panel, a touch display panel, and a method of manufacturing the touch panel to avoid warpage of the glass substrate of the touch panel.

An embodiment of the present invention provides a touch panel including a glass substrate, a barrier layer, a plurality of ions, and a touch element. The glass substrate has a corresponding tin surface and an opposite surface. The barrier layer is disposed on the opposite side of the glass substrate. The ions are located on both sides of the glass substrate adjacent to the tin surface and the opposite surface and the barrier layer, and the ions in the barrier layer are gradually distributed from the side away from the glass substrate toward the glass substrate. The touch element is disposed on the tin surface of the glass substrate.

Another embodiment of the present invention provides a touch display panel including a display panel and a touch panel. The display panel has a display surface. The touch panel is disposed on the display surface of the display panel. The touch panel includes a glass substrate, a barrier layer, a plurality of ions, and a touch element. The glass substrate has a corresponding tin surface and an opposite surface. The barrier layer is disposed on the opposite side of the glass substrate. The ions are located on both sides of the glass substrate adjacent to the tin surface and the opposite surface and the barrier layer, and the ions in the barrier layer are gradually distributed from the side away from the glass substrate toward the glass substrate. The touch element is disposed on the tin surface of the glass substrate.

Yet another embodiment of the present invention provides a method of fabricating a touch panel, including the following steps. A glass substrate is provided. The glass substrate has a corresponding tin surface and an opposite surface. A barrier layer is formed on the opposite side of the glass substrate. Performing a strengthening process to immerse the glass substrate forming the barrier layer in a strengthening solution, wherein the strengthening solution comprises a plurality of ions, and the barrier layer inhibits the amount of ions entering the opposite surface of the glass substrate, and the tin surface and the opposite surface of the glass substrate There are ions, and the ions within the barrier layer are distributed decreasingly in a direction away from one of the opposite faces of the opposite face. After the strengthening process, a touch element is formed on the tin surface of the glass substrate.

The touch panel, the touch display panel and the method for manufacturing the touch panel of the invention have a barrier layer disposed on the opposite side of the glass substrate, and the barrier layer can be in the strengthening process. The amount of ions entering the opposite surface is suppressed, so that the stress on the tin surface and the opposite surface of the glass substrate can be balanced, and the problem of warpage of the glass substrate can be avoided.

2, 4, 6, 8‧ ‧ steps

10‧‧‧ glass substrate

101‧‧‧ tin surface

102‧‧‧ opposite

12‧‧‧Barrier

14‧‧‧ Strengthening solution

16‧‧‧ ions

20‧‧‧Touch components

22‧‧‧Wire

24‧‧‧ patterned decorative layer

26‧‧‧Protective layer

30‧‧‧Touch panel

32‧‧‧buffer layer

40‧‧‧ touch panel

50‧‧‧ touch panel

52‧‧‧Touch sensing area

54‧‧‧The surrounding area

55, 56, 57, 58, 59‧‧

X‧‧‧ horizontal direction

Y‧‧‧Vertical direction

20X‧‧‧first axial electrode

20Y‧‧‧second axial electrode

20H‧‧‧First touch sensing electrode

20V‧‧‧second touch sensing electrode

20R‧‧‧ touch signal receiving electrode

20T‧‧‧ touch signal transmission electrode

60, 60', 70, 70'‧‧‧ touch display panels

62‧‧‧ display panel

62A‧‧‧ display surface

64‧‧‧Adhesive layer

H‧‧‧ height difference

FIG. 1 is a flow chart showing a method of fabricating a touch panel of the present invention.

2 to 5 are schematic views showing a method of fabricating a touch panel according to a first embodiment of the present invention.

6 to 7 are schematic views showing a method of fabricating a touch panel according to a second embodiment of the present invention.

FIG. 8 is a top plan view showing a preferred embodiment of the touch panel of the present invention.

FIG. 9 is a top plan view showing a modified embodiment of a touch element of the touch panel of the present invention.

FIG. 10 is a schematic view showing a first embodiment of the touch display panel of the present invention.

11 is a schematic view showing a modified embodiment of a first embodiment of the touch display panel of the present invention.

FIG. 12 is a schematic view showing a second embodiment of the touch display panel of the present invention.

FIG. 13 is a schematic diagram showing a modified embodiment of a second embodiment of the touch display panel of the present invention.

The present invention will be further understood by the following detailed description of the preferred embodiments of the invention, .

Please refer to Figure 1. FIG. 1 is a flow chart showing a method of fabricating a touch panel of the present invention. As shown in FIG. 1 , the method for fabricating a touch panel of the present invention comprises the following steps: Step 2: providing a glass substrate, wherein the glass substrate has a corresponding one of a tin side and an opposite side; Step 4: forming a barrier layer on the opposite side of the glass substrate; Step 6: performing a strengthening process to immerse the glass substrate on which the barrier layer is formed into a reinforcement a solution, wherein the strengthening solution comprises a plurality of ions, and the barrier layer inhibits the amount of ions entering the opposite side of the glass substrate such that the plasma within the barrier layer is distributed decreasingly from a laterally opposite side of the opposite face; and the step 8: After the strengthening process, a touch element is formed on the tin surface of the glass substrate.

Please refer to Figures 2 to 5 again. 2 to 5 are schematic views showing a method of fabricating a touch panel according to a first embodiment of the present invention. The method of fabricating the touch panel of the present embodiment will be described in detail below with reference to the cross-sectional views shown in FIGS. 2 to 5. As shown in FIG. 2, a glass substrate 10 is first provided, wherein the glass substrate 10 has a corresponding one of the tin faces 101 and an opposite face 102. In the present embodiment, the glass substrate 10 having the tin surface 101 and the opposite surface 102 may be formed by a float glass process, but may not be formed by other suitable processes. The float glass process includes the following steps. The molten glass solution was placed on the tin solution, one side of the glass solution was brought into contact with the tin solution, and the other side of the glass solution was exposed to the air. Next, the solid glass substrate 10 is formed after being cooled and solidified in a molten state. That is to say, in the float glass process, one surface of the glass substrate 10 is in contact with the tin solution, so tin ions may enter the surface of the glass substrate 10, so it is called a tin surface 101; and the glass substrate 10 is another One surface is not exposed to the tin solution and is exposed to the air, so that substantially no tin ions are present, so it is referred to as the opposite surface 102.

As shown in FIG. 3, a barrier layer 12 is then formed on the opposite surface 102 of the glass substrate 10. The barrier layer 12 has a barrier function to block the spacer from entering the glass substrate 10 via the opposite surface 102. In the present embodiment, the barrier layer 12 is in contact with the opposite surface 102 of the glass substrate 10, but is not limited thereto. The barrier layer 12 may be a single layer structure or a multilayer stack structure. The barrier layer 12 can be formed on the opposite side 102 of the glass substrate 10 by physical means, chemical means or other suitable means, such as attachment, coating, electroplating, physical vapor deposition or chemical vapor deposition, but not limited thereto. The material of the barrier layer 12 may include an inorganic material, an organic material, or an organic/inorganic material such as cerium oxide (SiO _x ), cerium nitride (SiN _y ), cerium oxynitride (SiN _x O _y ), but not limited thereto. . The material of the barrier layer 12 may also be a metal or metal oxide such as titanium dioxide (TiO ₂ ), tantalum pentoxide (Ta ₂ O ₅ ) or tantalum pentoxide (Nb ₂ O ₅ ). Depending on the application, the barrier layer 12 can be a light transmissive layer or an opaque layer. For example, when the touch panel is applied to the display surface of the display device, the barrier layer 12 is a light transmissive layer, and when the touch panel is applied to other non-display devices, the barrier layer 12 may be an opaque layer. In addition, the thickness of the barrier layer 12 can be adjusted according to different materials. For example, the thickness of the barrier layer 12 can be substantially between 1 nanometer (nm) and 100 nanometers, and preferably between 1 nanometer and 30 nanometers. Between the rice, but not limited to this. In addition, the refractive index of the barrier layer 12 may be greater than, less than, or equal to the refractive index of the glass substrate 10 depending on different optical considerations.

As shown in FIG. 4, a strengthening process such as a chemical strengthening process is performed, and the glass substrate 10 on which the barrier layer 12 is formed is immersed in the strengthening solution 14. The strengthening solution 14 includes a plurality of ions 16 and there is another ion in the glass substrate 10, wherein the ions 16 of the strengthening solution 14 are larger than the ions contained in the glass substrate 10 itself. For example, the strengthening solution 14 may be a potassium nitrate solution, and thus the ions are potassium ions, and the ions contained in the glass substrate 10 itself are, for example, nano ions. In the strengthening process, an ion displacement reaction occurs between the glass substrate 10 and the strengthening solution 14 by diffusion. That is, the potassium ions having a larger size in the strengthening solution 14 enter the position of the nano-ion having a smaller size in the glass substrate 10 instead of the glass substrate 10, thereby achieving the effect of strengthening the glass substrate 10. The size here may refer to the ionic radius or atomic radius. It is to be noted that the ions 16 of the strengthening solution 14 are not limited to potassium ions, and the ions of the glass substrate 10 are not limited to the nano ions. For example, when the ions of the glass substrate 10 are lithium ions, the ions 16 of the strengthening solution 14 may be any ions larger than lithium ions, such as nano ions and/or potassium ions.

Since the opposite surface 102 of the glass substrate 10 is covered with the barrier layer 12 having a barrier function, the number of ions 16 entering the opposite surface 102 of the glass substrate 10 can be suppressed, and the ions 16 in the barrier layer 12 are separated from the glass substrate 10. One side is gradually distributed in the direction of the glass substrate 10. On the other hand, the tin ions contained in the tin surface 101 of the glass substrate 10 also inhibit the ions 16 from entering the glass substrate 10 via the tin surface 101. Therefore, after the strengthening process, the number of ions 16 entering the opposite surface 102 and entering the tin surface 101 The number of ions 16 will be close without any difference. Further, the barrier layer 12 disposed on the opposite surface 102 of the glass substrate 10 can adjust the ion exchange rate of the opposite surface 102 such that the opposite surface 102 and the tin surface 101 have an approximate ion exchange rate, so that after the strengthening process, the polymerization is performed. The number of ions 16 collected on the tin surface 101 and the opposite surface 102 of the glass substrate 10 is close. That is, the number or concentration of ions 16 of the glass substrate 10 relative to the tin surface 101 and the opposite surface 102 is substantially close, such as the number or concentration distribution of ions 16 near the tin surface 101 and the ions 16 near the opposite surface 102. The number or concentration distribution will exhibit a mirror-like symmetry based on the centerline of the glass substrate 10. Therefore, the stress on the tin surface 101 of the glass substrate 10 and the opposite surface 102 are similar, and the problem of warpage of the glass substrate 10 is effectively prevented. In this embodiment, the barrier layer 12 can completely cover the opposite surface 102 of the glass substrate 10, but is not limited thereto. In other variant embodiments, the barrier layer 12 may also cover only the opposing faces 102 of a portion of the glass substrate 10, as other considerations. In the inside of the glass substrate 10, the number or concentration distribution of the ions 16 is decreased from the tin face 101 toward the inside of the glass substrate 10. Similarly, the number or concentration distribution of the ions 16 is also directed from the opposite face 102 toward the inside of the glass substrate 10. The direction is decreasing. In addition, the concentration of ions 16 on the surface of the tin face 101 will be higher than the concentration of ions 16 on the surface of the opposite face 102.

The warpage problem caused by the stress imbalance is more serious in the case where the thickness of the glass substrate is smaller. Therefore, the method of adjusting the stress by the barrier layer in the present embodiment can greatly improve the warpage of the thin glass substrate. The thickness of the thin glass substrate is, for example, between 0.1 mm (mm) and 0.55 mm, but the method of the present embodiment is not limited to the thickness of the glass substrate.

As shown in FIG. 5 , after the reinforced process, a touch element 20 is formed on the tin surface 101 of the glass substrate 10 , and since the touch element 20 generally provides a compressive stress, after the touch element 20 is formed, The degree of bending of the glass substrate 10 is reduced. The type of the touch element 20 is not limited, and may be a capacitive touch element, a resistive touch element, an optical touch element or other types of touch elements. In addition, the method for fabricating the touch panel of the present embodiment may further include forming a wire 22, a patterned decorative layer 24, and a protective layer 26 on the tin surface 101 of the glass substrate 10 to form the touch panel 30 of the embodiment. The wire 22 is disposed on the periphery of the glass substrate 10 and electrically connected to the touch component 20 for transmitting the signal of the touch component 20 . The wire 22 can be, for example, a metal wire, or a wire made of other conductive material. The primary function of the patterned decorative layer 24 is to shield the wires 22 around the periphery of the glass substrate 10. At least a portion of the touch element 20 can extend onto the patterned decorative layer 24. The material of the patterned decorative layer 24 can be, for example, ink, diamond-like carbon, metal, ceramic, photoresist, resin, organic material, inorganic material, or other various materials having light-shielding properties. Further, the structure of the patterned decorative layer 24 may be a single layer structure or a multilayer structure. The protective layer 26 is used to protect the touch element 20, which may be, for example, an inorganic protective layer or an organic protective layer.

Referring to FIG. 11 at the same time, the general design of the touch panel 12 and the touch element 20 is that the touch panel is formed flat without warping, but there may still be some slight warpage. The warping mode is such that the central portion of the glass substrate 10 is higher than the edge portion, that is, the glass substrate 10 is bent toward the touch element 20 to avoid bending in the opposite direction, but the height difference between the central portion and the edge portion is substantially An upper acceptable range is less than or equal to 0.7 mm. Alternatively, when the barrier layer 12 is designed, the compressive stress of the touch element 20 can be taken into consideration, and the material or thickness of the barrier layer 12 is adjusted first, so that the tin surface 101 of the glass substrate 10 after the touch element 20 is formed The stress balance of the opposing face 102. For example, the thickness of the barrier layer 12 can be reduced, so that the glass substrate 10 is in a warped state before the touch element 20 is formed, but after the touch element 20 is formed, the glass substrate 10 is in a flat and unwarped state or A 0.7 mm warp state is allowed in the direction toward the touch element 20. In general, when the amount or concentration of ions 16 distributed on the tin face 101 is lower than the amount or concentration of the ions 16 distributed on the opposite face 102, the glass substrate 10 is bent toward the direction of the touch element 20. Conversely, when the amount or concentration of the ions 16 distributed on the tin face 101 is higher than or equal to the number or concentration of the ions 16 distributed on the opposite face 102, the glass substrate 10 is bent in the direction of the face 102 (not shown).

The touch panel of the present invention and the method of fabricating the same are not limited to the above embodiments. The touch panel, the touch display panel and the manufacturing method thereof according to other preferred embodiments of the present invention will be sequentially described below, and in order to facilitate comparison of the differences of the embodiments and simplify the description, the following embodiments are used. The same reference numerals are given to the same elements, and the differences between the embodiments are mainly described, and the repeated parts are not described again.

Please refer to Figure 6 and Figure 7. 6 to 7 are schematic views showing a method of fabricating a touch panel according to a second embodiment of the present invention. The method for fabricating the touch panel of the present embodiment is performed after the steps disclosed in FIG. As shown in FIG. 6, unlike the foregoing embodiment, the method of the present embodiment further includes forming a buffer layer 32 on the tin surface 101 of the glass substrate 10 after the strengthening process and before forming the touch element. The material of the buffer layer 32 may include an inorganic material, an organic material, or an organic/inorganic material such as cerium oxide (SiO _x ), cerium nitride (SiN _y ), cerium oxynitride (SiN _x O _y ), but not limited thereto. . The buffer layer 32 is preferably a light transmissive layer, but is not limited thereto but may also be an opaque layer.

As shown in FIG. 7, the touch element 20, the wires 22, the patterned decorative layer 24, and the protective layer 26 are formed on the buffer layer 32 to form the touch panel 40 of the present embodiment. In the present embodiment, the touch element 20 is formed on the buffer layer 32 without directly contacting the tin surface 101 of the glass substrate 10. That is, the buffer layer 32 is disposed between the tin surface 101 of the glass substrate 10 and the touch element 20, and the touch element 32 can improve the touch element 20 due to the better bonding force between the buffer layer 32 and the touch element 20. Yield and reliability. In addition, the buffer layer 32 is formed after the strengthening process. However, in the process of forming the components such as the touch element 20, the wires 22, the patterned decorative layer 24 and the protective layer 26, a part of the ions accumulated by the tin surface 101 of the glass substrate 10 are formed. 16 may diffuse to the buffer layer 32 due to the high temperatures of the above process (generally, up to about 250 ° C), but the amount or concentration of ions 16 in the buffer layer 32 will be much less than the amount or concentration of ions 16 in the barrier layer 12. .

Please refer to Figure 8. FIG. 8 is a top plan view showing a preferred embodiment of the touch panel of the present invention. As shown in FIG. 8 , the touch panel 50 of the present embodiment has a touch sensing area 52 and a peripheral area 54 . The touch element 20 is disposed substantially in the touch sensing area 52 and partially extends to the peripheral area 54 , and the patterned decorative layer 24 is disposed at least on one side of the peripheral area 54 . In this embodiment, the touch element 20 includes a first axial electrode 20X extending along the horizontal direction X of FIG. 8 and a second axial electrode 20Y extending along the vertical direction Y of the eighth figure, wherein the first The axial electrode 20X and the second axial electrode 20Y are disposed to cross each other, and an island-shaped insulating structure 20A is disposed at an intersection position therebetween to electrically insulate the first axial electrode 20X from the second axial electrode 20Y. Each of the first axial electrodes 20X includes a plurality of electrically connected first touch sensing electrodes 20H, and each of the second axial electrodes 20Y includes a plurality of electrically connected second touch sensing electrodes 20V. The shape of the sensing electrode in the first axial electrode 20X and the second axial electrode 20Y can be designed as needed, for example, a diamond electrode or more Angled electrode, but not limited to this. The touch element 20 may include a transparent conductive material such as indium tin oxide, zinc indium oxide, nano silver wire, carbon nanotubes, graphene, conductive polymer, and the like. Additionally, the patterned decorative layer 24 has an opening. The opening can be used as a function pattern, a logo pattern, a button pattern, and the like. For example, the opening 55 can serve as an infrared sensing hole, the opening 56 can serve as a light emitting diode (LED) light transmitting hole, the opening 57 can be used as a trademark pattern, and the opening 58 can serve as a main screen key pattern, and the opening 59 can be used as a return button pattern.

Please refer to Figure 9. FIG. 9 is a top plan view showing a modified embodiment of a touch element of the touch panel of the present invention. As shown in FIG. 9, in the embodiment, the touch element 20 can include a plurality of touch signal receiving electrodes 20R and a plurality of touch signal transmitting electrodes 20T staggered with each other to perform a mutual capacitive touch. Control sensing, but not limited to this.

In other embodiments, the touch sensing electrodes included in the touch component 20 may also be a plurality of triangular touch sensing electrodes arranged side by side and upside down, a plurality of rectangular touch sensing electrodes disposed separately from each other, or other regular or irregularities. Shape touch sensing electrodes. In addition, the touch element 20 can be a single layer (SITO) structure, a double layer (DITO) structure, a monolithic glass type (OGS) or other structure. Moreover, the touch sensing mechanism of the touch component 20 can be self capacitive touch sensing or mutual capacitance touch sensing.

Please refer to Figure 10. FIG. 10 is a schematic view showing a first embodiment of the touch display panel of the present invention. As shown in FIG. 10 , the touch display panel 60 of the present embodiment includes a display panel 62 and a touch panel 30 . The display panel 62 has a display surface 62A, and the touch panel 30 is disposed on the display surface 62A of the display panel 62. In addition, the touch element 20 faces the display surface 62A of the display panel 62. Therefore, the glass substrate 10 is used as a cover glass, but is not limited thereto. The display panel 62 of the embodiment may be a liquid crystal display panel, an electroluminescent display panel, an electrowetting display panel, an electrophoretic display panel or other various types of self-illuminating display panels, non-self-illuminating display panels, hard display panels or Flexible display panel. In the present embodiment, the touch panel 30 is exemplified by the touch panel 30 disclosed in the embodiment of FIG. 5 . For the components and configurations, reference may be made to the related description in FIG. 5 , and details are not described herein again. In addition, the display panel 62 and the touch panel 30 can be adhered by using an adhesive layer 64. Hehe. For example, in the embodiment, the adhesive layer 64 uses a singular glue which is disposed only in a peripheral region between the display panel 62 and the touch panel 30. In other variant embodiments, the adhesive layer 64 can also be a complete adhesive layer.

Please refer to Figure 11. 11 is a schematic view showing a modified embodiment of a first embodiment of the touch display panel of the present invention. As shown in FIG. 11 , in the touch display panel 60 ′ of the modified embodiment, the glass substrate 10 of the touch panel 30 can be slightly warped, for example, the central portion of the glass substrate 10 is higher than the edge portion and has a The height difference H, but this height difference H is substantially an acceptable range in the case of not more than 0.7 mm.

Please refer to Figure 12. FIG. 12 is a schematic view showing a second embodiment of the touch display panel of the present invention. As shown in FIG. 12 , the touch display panel 70 of the present embodiment includes a display panel 62 and a touch panel 40 . The display panel 62 has a display surface 62A, and the touch panel 40 is disposed on the display surface 62A of the display panel 62. In addition, the touch element 20 faces the display surface 62A of the display panel 62. Therefore, the glass substrate 10 is used as a cover plate, but is not limited thereto. The display panel 62 of this embodiment may be a liquid crystal display (LCD) panel, an electroluminescent (EL) display panel such as an organic light emitting diode (OLED) display panel, or an electrowetting display panel. An electrophoretic display panel or other various types of self-illuminating display panels, non-self-illuminating display panels, hard display panels or flexible display panels. In the present embodiment, the touch panel 40 is described by taking the touch panel 40 disclosed in the embodiment of FIG. 7 as an example. For the components and configurations, reference may be made to the related description of FIG. 7, and details are not described herein again. In the present embodiment, the adhesive layer 64 is a full-face adhesive layer. In other variant embodiments, the adhesive layer 64 may also be a mouth-shaped glue that is disposed only in a peripheral region between the display panel 62 and the touch panel 40.

Please refer to Figure 13. FIG. 13 is a schematic diagram showing a modified embodiment of a second embodiment of the touch display panel of the present invention. As shown in FIG. 13 , in the touch display panel 70 ′ of the modified embodiment, the glass substrate 10 of the touch panel 40 can be slightly warped, for example, the central portion of the glass substrate 10 is higher than the edge portion and has a The height difference H, but this height difference H is substantially an acceptable range in the case of not more than 0.7 mm.

The touch panel used in the touch display panel of the present invention may be the touch panel disclosed in any embodiment of the present disclosure.

In summary, the touch panel, the touch display panel, and the method for manufacturing the touch panel of the present invention have a barrier layer disposed on the opposite surface of the glass substrate, and the barrier layer can be inhibited from entering the opposite surface during the strengthening process. The amount of ions, so that the stress on the tin surface and the opposite side of the glass substrate can be balanced, and the problem of warpage of the glass substrate can be avoided.

10‧‧‧ glass substrate

101‧‧‧ tin surface

102‧‧‧ opposite

12‧‧‧Barrier

16‧‧‧ ions

20‧‧‧Touch components

22‧‧‧Wire

24‧‧‧ patterned decorative layer

26‧‧‧Protective layer

30‧‧‧Touch panel

Claims (18)

A touch panel includes: a glass substrate having a corresponding one of a tin side and an opposite side; a barrier layer disposed on the opposite side of the glass substrate; a plurality of ions, distributed In the glass substrate and the barrier layer, the plasma in the barrier layer is gradually distributed from a side away from the glass substrate toward the glass substrate, and the glass substrate has the opposite surface facing the glass substrate. The plasma, wherein the glass substrate has the plasma on the inside of the glass substrate; and a touch element disposed on the tin surface of the glass substrate. The touch panel of claim 1, wherein the plasma comprises at least one of potassium ions or sodium ions. The touch panel of claim 1, wherein the barrier layer is in contact with the opposite surface of the glass substrate, and the amount or concentration distribution of the plasma is from the tin surface and the opposite surface toward the inside of the glass substrate, respectively. Decrement. The touch panel of claim 3, wherein the amount or concentration of the plasma distributed on the tin surface is lower than the amount or concentration of the plasma distributed on the opposite surface, and the glass substrate faces the touch element bending. The touch panel of claim 3, wherein the amount or concentration of the plasma distributed on the tin surface is higher than or equal to the amount or concentration of the plasma distributed on the opposite surface, and the glass substrate faces the opposite surface The direction is curved. The touch panel of claim 1, further comprising a buffer layer disposed between the touch element and the tin surface of the glass substrate. The touch panel of claim 6, wherein the buffer layer has the plasma, and the amount or concentration of the plasma in the buffer layer is less than the amount or concentration of the plasma in the barrier layer. The touch panel of claim 1, further comprising a patterned decorative layer disposed on the glass substrate The tin surface. The touch panel of claim 8, wherein the patterned decorative layer has an opening, and at least a portion of the touch element extends onto the patterned decorative layer. The touch panel of claim 1, further comprising a protective layer disposed on the touch component. The touch panel of claim 1, wherein the thickness of the barrier layer is substantially between 1 nanometer (nm) and 100 nanometers. The touch panel of claim 1, wherein the thickness of the barrier layer is substantially between 1 nm and 30 nm. The touch panel of claim 1, wherein the glass substrate is bent toward the touch element, and a height difference between a central portion and an edge portion of the glass substrate is substantially less than or equal to 0.7 mm. The touch panel of claim 1, wherein the glass substrate is substantially close to the number or concentration of ions at the opposite surface of the tin surface. A touch display panel includes: a display panel having a display surface; and a touch panel disposed on the display surface of the display panel, the touch panel comprising: a glass substrate having a corresponding tin a tin side and an opposite side; a barrier layer disposed on the opposite side of the glass substrate; a plurality of ions located in the glass substrate and the barrier layer, and the plasma in the barrier layer The glass substrate has a decreasing distribution in a direction away from the side of the glass substrate toward the glass substrate, and the glass substrate has the plasma on the opposite side of the glass substrate, and the glass substrate has the tin surface facing the glass substrate. a plasma; and a touch component disposed on the tin surface of the glass substrate. The touch display panel of claim 15, wherein the touch component faces the display surface of the display panel. The touch display panel of claim 16, wherein the glass substrate is bent toward the touch element And the height difference between the central portion and the edge portion of the glass substrate is substantially less than or equal to 0.7 mm. A method for fabricating a touch panel, comprising: providing a glass substrate having a corresponding one of a tin side and an opposite side; forming a barrier layer on the opposite side of the glass substrate Performing a strengthening process, immersing the glass substrate formed with the barrier layer in a strengthening solution, wherein the strengthening solution comprises a plurality of ions, the barrier layer inhibiting the amount of the plasma entering the opposite surface of the glass substrate for The glass substrate has the plasma on the opposite surface facing the inside of the glass substrate, and the glass substrate has the plasma on the tin surface facing the inside of the glass substrate, and the plasma in the barrier layer is away from one side of the opposite surface Decreasing the distribution toward the opposite surface; and after the strengthening process, forming a touch element on the tin surface of the glass substrate.