TW201525805A - Touch panel and touch display panel - Google Patents

Abstract

A touch panel includes a transparent substrate, a plurality of connecting lines, a plurality of electrodes, a patterned insulating layer, and a plurality of electrode strips. The connecting lines and the electrodes are disposed on the transparent substrate, and each connecting line electrically connects any two of the electrodes arranged along a first direction and adjacent to each other. Each connecting line includes a middle part and two end parts respectively disposed at two sides of the middle part. The patterned insulating layer is disposed on the transparent substrate and the middle parts of the connecting lines, and has a plurality of openings, wherein the two end parts of each connecting line are exposed with two of the openings adjacent to each other respectively, and each electrode is disposed on the transparent substrate in each opening and electrically connects the end parts of the connecting lines adjacent to each other. The electrode strips are disposed on the patterned insulating layer, and each electrode strip is extended along a second direction different from the first direction.

Description

Touch panel and touch display panel

The present invention relates to a touch panel and a touch display panel, and more particularly to a touch panel having two layers of conductive patterns and a touch display panel.

Please refer to FIG. 1 , which is a schematic cross-sectional view of a conventional touch panel. As shown in FIG. 1 , the touch panel 10 is configured to detect the position of the touch object on the transparent substrate 14 , wherein the touch component 12 includes a plurality of first electrodes 16 and a plurality of A connecting line 18, a plurality of second electrodes 20, and a plurality of second connecting lines 22. The first connection line 18 connects the first electrodes 16 arranged in the first direction to form a first electrode strip. The second connection line 22 connects the second electrodes 20 arranged in a second direction different from the first direction to form a second electrode strip interleaved with the first electrode strip. The first connecting line 18 is formed by the first conductive pattern layer, and the first electrode 16, the second electrode 20 and the second connecting line 22 are formed by the second conductive pattern layer, and the first and second conductive patterns are formed. The layers are sequentially stacked on the transparent substrate 14. In order to electrically isolate the first electrode strip and the second electrode strip that are staggered from each other, the touch element 12 further includes a patterned insulating layer 24 disposed between each of the first connecting lines 18 and each of the second connecting lines 22.

Since the touch sensitivity of the touch panel 10 is related to the coupling capacitance between the first electrode strip and the second electrode strip, the coupling capacitance between the first electrode strip and the second electrode strip is lower as the touch sensitivity is improved. good. In order to achieve this, the widths of the first connecting line 18 and the second connecting line 22 are generally reduced to reduce the overlapping area of the first connecting line 18 and the second connecting line 22. However, the thickness of the patterned insulating layer 24 of the conventional touch panel 10 is greater than the thickness of the first and second conductive pattern layers, and the area thereof is only approximately similar to the area of the first connecting line 18, and is only disposed to overlap each other. of Between each of the first connecting lines 18 and each of the second connecting lines 22 and between the first connecting line 18 and a portion of the first electrode 16, so that the second connecting line 22 and the first electrode 16 will be from the patterned insulating layer 24. The upper surface extends along the sidewall of the patterned insulating layer 24 to the upper surface of the transparent substrate 14, such that the second connecting line 22 at the corner and the first electrode 16 are easily scratched or even broken, causing the electrode strip to be broken. Moreover, since one portion of the first electrode 16 and the second electrode 20 are directly in contact with the transparent substrate 14, the conductive material is likely to remain in the gap between the first electrode 16 and the second electrode 20 due to poor plating, so that the first The electrode 16 and the second electrode 20 are short-circuited.

At present, the patterned insulating layer and the second conductive pattern layer are formed by using the same photoresist layer, so that the patterned insulating layer and the second conductive pattern layer have the same shape to prevent the second conductive pattern layer from being patterned and insulated. The upper surface of the layer extends along the sidewall of the patterned insulating layer to the upper surface of the transparent substrate, thereby preventing the second conductive pattern layer from being scratched and broken. However, since the patterned insulating layer, the first conductive pattern layer, and the second conductive pattern layer do not completely cover the transparent substrate, the area of the gap between the first electrode and the second electrode of the conventional touch panel and the second cover are covered. The area of the conductive pattern layer still has a large difference in light reflectivity, so that the touch element is easily viewed, resulting in poor appearance of the touch panel.

In view of this, reducing the visibility of the touch components is an industry goal.

A main object of the present invention is to provide a touch panel and a touch display panel to reduce the visibility of the touch component.

To achieve the above objective, the present invention provides a touch panel including a transparent substrate, a plurality of first electrode strips, a patterned insulating layer, and a plurality of second electrode strips. The first electrode strip is disposed on the transparent substrate, and each of the first electrode strips includes a plurality of first connecting lines and a plurality of first electrodes, wherein each of the first connecting lines is electrically connected to any two adjacent and along a first direction The first electrodes are arranged, and each of the first connecting lines includes an intermediate portion and two end portions respectively located at two sides of the intermediate portion. The patterned insulating layer is disposed on the transparent substrate and the middle portion of each of the first connecting lines, and has a plurality of openings, wherein the two ends of each of the first connecting lines are respectively exposed by two adjacent openings, and each of the first electrodes is respectively disposed on the transparent substrate in each opening, and electrically connected to the adjacent first connection The end of the line. The second electrode strip is disposed on the patterned insulating layer, and each of the second electrode strips extends in a second direction different from the first direction. The first electrode strip and the second electrode strip are insulated from each other by the patterned insulating layer.

To achieve the above, the present invention provides a touch display panel, including a touch panel and a display panel, and the touch panel includes a transparent substrate and a touch component. The touch component is disposed on the transparent substrate, and the touch component includes a plurality of first electrode strips, a patterned insulating layer, and a plurality of second electrode strips. The first electrode strip is disposed on the transparent substrate, and each of the first electrode strips includes a plurality of first connecting lines and a plurality of first electrodes, wherein each of the first connecting lines is electrically connected to any two adjacent and along a first direction The first electrodes are arranged, and each of the first connecting lines includes an intermediate portion and two end portions respectively located at two sides of the intermediate portion. The patterned insulating layer is disposed on the transparent substrate and the intermediate portion of each of the first connecting lines, and has a plurality of openings, wherein the two ends of each of the first connecting lines are respectively exposed by two adjacent openings, and each of the first electrodes They are respectively disposed on the transparent substrate in each opening, and are electrically connected to the ends of the adjacent first connecting lines. The second electrode strip is disposed on the patterned insulating layer, and each of the second electrode strips extends in a second direction different from the first direction. The first electrode strip and the second electrode strip are insulated from each other by the patterned insulating layer. The display panel is disposed on one side of the touch panel.

The open sidewall of the patterned insulating layer of the present invention is substantially aligned with the sidewall of the first electrode such that the first electrode and the second electrode strip do not need to cross the sidewall of the patterned insulating layer, thereby avoiding the first electrode and the first electrode The two electrode strips are broken or scratched. As a result, the thickness of the patterned insulating layer can be increased to improve the touch sensitivity of the touch panel. Moreover, by covering the spacing between the first electrode and the second electrode strip through the patterned insulating layer, the difference in reflectivity of the light entering the touch panel can be reduced, thereby reducing the visibility of the touch component.

10‧‧‧Touch panel

12‧‧‧Touch components

14‧‧‧Transparent substrate

16‧‧‧First electrode

18‧‧‧First cable

20‧‧‧second electrode

22‧‧‧second cable

24‧‧‧ patterned insulation

100, 204‧‧‧ touch panel

102, 210‧‧‧ Transparent substrate

104, 212‧‧‧ Touch components

105, 214‧‧‧ decorative layer

106‧‧‧First electrode strip

106a‧‧‧First cable

106b‧‧‧first electrode

108‧‧‧patterned insulation

108a‧‧‧ Opening

110‧‧‧Second electrode strip

110a‧‧‧second cable

110b‧‧‧second electrode

112‧‧‧ middle part

114‧‧‧End

200, 300, 400‧‧‧ touch display panel

202, 302‧‧‧ display panel

202a‧‧‧ display area

202b‧‧‧Non-display area

202c‧‧‧ upper surface

204a‧‧‧Transparent area

204b‧‧‧ surrounding area

206‧‧‧Adhesive layer

208‧‧‧Array substrate

214a‧‧‧ openings

216‧‧ ‧ protective layer

304‧‧‧Color filter substrate

306‧‧‧Display media layer

308, 404‧‧‧ box glue

310‧‧‧Color filter layer

312‧‧‧ Covering board

402‧‧‧Organic light-emitting diode layer

G‧‧‧ gap

M1‧‧‧First conductive pattern layer

M2‧‧‧Second conductive pattern layer

X‧‧‧ first direction

Y‧‧‧second direction

Z‧‧‧projection direction

FIG. 1 is a schematic cross-sectional view of a conventional touch panel.

2 to 4 are schematic views showing a method of fabricating a touch panel according to a first embodiment of the present invention.

FIG. 5 is a top plan view of the touch panel according to the first embodiment of the present invention.

Fig. 6 and Fig. 7 are schematic cross-sectional views along the section lines A-A' and B-B', respectively, of Fig. 5.

FIG. 8 is a cross-sectional view showing a touch display panel according to a second embodiment of the present invention.

FIG. 9 is a cross-sectional view showing a touch display panel according to a third embodiment of the present invention.

FIG. 10 is a cross-sectional view showing a touch display panel according to a fourth embodiment of the present invention.

A first embodiment of the present invention provides a method of fabricating the touch panel 100, which is described below. As shown in Fig. 2, first, a transparent substrate 102 is provided. Then, a plurality of first connecting lines 106a are formed on the transparent substrate 102 and arranged in a matrix. In this embodiment, the first connection line 106a may be formed by a first conductive pattern layer M1. Moreover, the transparent substrate 102 may include a glass plate, a plastic plate, a glass sheet, a plastic film or a substrate of the display, and the substrate of the display such as a color filter substrate or a package cover of the organic light emitting display, etc., but the present invention does not limit.

Then, as shown in FIG. 3, a patterned insulating layer 108 is formed on the transparent substrate 102, and the patterned insulating layer 108 has a plurality of openings 108a between the adjacent first connecting lines 106a. Each of the first connecting lines 106a includes a middle portion 112, and two end portions 114 respectively located on both sides of the intermediate portion 112, and the both end portions 114 are exposed from the two adjacent openings 108a. In this embodiment, the thickness of the patterned insulating layer 108 is greater than the thickness of the first connecting line 106b formed by the first conductive pattern layer M1, and may be less than or equal to 3 micrometers, but not limited thereto. For example, the thickness of the patterned insulating layer 108 may be approximately eight times greater than the first conductive pattern layer M1. For example, the thickness of the patterned insulating layer 108 is approximately 1.2 μm, and the thickness of the first conductive pattern layer M1 is approximately 0.11 μm, but is not limited thereto.

Next, as shown in FIG. 4, a plurality of second electrode strips 110 are formed on the patterned insulating layer 108, and a plurality of first electrodes 106b are formed on the transparent substrate 102 in the opening 108a, and Each of the first electrodes 106b is connected to an end portion 114 of the adjacent two first connecting lines 106a. In this embodiment, the first electrode 106b and the second electrode strip 110 are formed by the same second conductive pattern layer M2. Moreover, the materials of the first conductive pattern layer M1 and the second conductive pattern layer M2 are respectively an inorganic conductive material, a metal, a metal oxide conductive material, a nano metal material, a carbon nanotube conductive material, a nano wire conductive material. . Nanowire conductive material such as: nano silver wire, nano metal particle conductive material, polymer conductive material, polymer metal composite conductive material, polymer carbon conductive composite material or polymer inorganic conductive composite material or other conductive Material, metal oxide conductive material such as: indium tin oxide, indium zinc oxide, aluminum zinc oxide, aluminum oxide or indium gallium oxide Indium gallium zinc oxide, and the above metal can be made into a metal mesh pattern, but not limited thereto.

Please refer to Figures 5 to 7. The structure of the touch panel 100 of the present embodiment will be described in further detail below. The touch panel 100 of the present embodiment includes a transparent substrate 102, a touch element 104, and a decorative layer 105. The touch component 104 is disposed on the transparent substrate 102 and is used for detecting a touch object, such as a finger or a stylus, touching or approaching the position of the touch panel 100. The decorative layer 105 is disposed on the transparent substrate 102 to define a light transmissive area and a peripheral area of the touch panel 100. The touch element 104 includes a plurality of first electrode strips 106, a patterned insulating layer 108, and a second electrode strip 110. In this embodiment, each of the first electrode strips 106 is disposed on the transparent substrate 102 along a first direction X. Each of the first electrode strips 106 includes at least one first connecting line 106a and a plurality of first electrodes 106b, and each of the first connecting lines 106a is electrically connected to any two adjacent first electrodes arranged along the first direction X. 106b.

Furthermore, the patterned insulating layer 108 of the present embodiment is disposed on the transparent substrate 102, and each of the first connecting lines 106a is electrically connected to any two adjacent first electrodes 106b arranged along a first direction X. Specifically, since each opening 108a exposes a portion of the transparent substrate 102 and the end portion 114 of the adjacent first connection line 106a when the patterned insulating layer 108 is formed, each of the first electrodes 106b is formed in each opening. In the case of 108, each of the first electrodes 106b may be exposed to each opening 108a The end portions 114 of the two adjacent first connecting lines 106a are in contact with each other, whereby the first electrodes 106b arranged in the first direction X are electrically connected in series to each other to form the first electrode strips through the first connecting lines 106a. 106. In addition, each of the first electrodes 106b is formed in each of the openings 108a. Each of the first electrodes 106b substantially covers the openings 108a such that the area of each of the first electrodes 106b is substantially the same or smaller than the area of each of the openings 108a.

In addition, each of the second electrode strips 110 of the present embodiment is disposed on the patterned insulating layer 108, and each of the second electrode strips 110 extends along a second direction Y different from the first direction X. Specifically, each of the second electrode strips 110 includes at least one second connecting line 110a and a plurality of second electrodes 110b. The second connecting line 110a is connected to any two adjacent second electrodes 110b, and each of the first connecting lines 106a and Each of the second connection lines 110a is electrically insulated by the patterned insulating layer 108.

Therefore, as shown in FIG. 6, the second connection line 110a and the second electrode 110b of the second electrode strip 110 are disposed on the patterned insulating layer 108, and the thickness of the patterned insulating layer 108 is greater than the first connection line 106a. Since the thickness is 8 times or more, the height difference between the second connection line 110a and the second electrode 110b can be greatly reduced, and the second electrode strip 110 can be prevented from being broken or scratched. Moreover, since each of the first electrodes 106b does not extend onto the patterned insulating layer 108, there is a significant height difference from the second electrode strips 110 disposed on the patterned insulating layer 108, and in the projection direction Z and each There is a gap G between the first electrodes 106b, so that not only the visibility can be increased, but also the short circuit between the first electrode strips 106 and the second electrode strips 110 can be avoided.

To further illustrate the effectiveness of the touch panel 100 of the present embodiment in reducing visibility, please refer to Table 1. The conventional touch panel can be as shown in FIG. 1 , and the reflectance at the gap refers to the reflectivity of the touch panel 100 that is incident on the gap G between the first electrode 106 b and the second electrode strip 110 . The reflectivity at the second electrode refers to the reflectivity of the light entering the touch panel 100 located in the region of the second electrode strip 110, and the reflectance at the first electrode refers to the light incident on the region of the first electrode 106b. The reflectivity of the touch panel 100. As shown in Table 1, in the touch panel 100 of the present embodiment, the difference between the reflectance at the gap and the reflectance at the second electrode is only 1.26%, and the reflectance at the gap and the reflection at the first electrode The difference in rates is only 1.53%. In the conventional touch panel, The difference between the reflectance at the gap and the reflectance at the second electrode was 1.58%, and the difference between the reflectance at the gap and the reflectance at the first electrode was 1.58%. Therefore, the patterned insulating layer 108 of the present embodiment covers the gap G between the second electrode strip 110 and the first electrode 106b in the projection direction Z, so that the light is incident on the reflectivity of the touch panel 100 of the embodiment. The difference can be reduced, whereby the visibility of the touch element 104 can be effectively reduced.

The present invention further provides a touch display panel to which the touch panel of the above embodiment can be applied. Please refer to Figure 8. The touch display panel 200 of the present embodiment includes a display panel 202, a touch panel 204, and an adhesive layer 206. The adhesive layer 206 is disposed between the display panel 202 and the touch panel 204 for engaging the display panel 202 and the touch panel 204 . In the embodiment, the display panel 202 has a display area 202a and a non-display area 202b, and the non-display area 202b surrounds the display area 202a. The display panel 202 displays a screen in the display area 202a, and a peripheral component that is opaque to the non-display area 202b, such as a driving circuit, is not limited thereto. Moreover, the display panel 202 can include an array substrate 208 for driving the display unit. For example, the display panel 202 may include, for example, a liquid crystal display panel, a field emission display panel, a plasma display panel, an organic light emitting display panel, an electrowetting display panel, or an electrophoretic display panel, but is not limited thereto. In addition, the touch panel 204 of the present embodiment can be disposed on the upper surface 202c of the display panel 202 and has a light transmissive area 204a and a peripheral area 204b surrounding the light transmissive area 204a. The light transmitting region 204a is disposed corresponding to the display region 202a.

The touch display panel of the present invention is not limited to the above embodiment. Other embodiments or variations of the invention will be disclosed hereinafter, but to simplify the description and highlight the various embodiments or variations. In the following, the same elements are denoted by the same reference numerals, and the repeated parts will not be described again.

Please refer to Figure 9. The display panel 302 of the present embodiment is a liquid crystal display panel, and the transparent substrate 210 serves as a substrate of the color filter substrate, so that the touch display panel of the embodiment is different from the second embodiment shown in FIG. The 300 series system can omit a substrate from the touch display panel of the second embodiment. In the embodiment, the touch display panel 300 includes a display panel 302 , a touch element 212 , and a cover plate 312 . The display panel 302 includes a color filter substrate 304, an array substrate 208, a display medium layer 306, and a sealant 308. The color filter substrate 304 and the array substrate 208 are disposed opposite to each other, and the display dielectric layer 306 and the sealant 308 are disposed between the color filter substrate 304 and the array substrate 208, and the sealant 308 is disposed around the display medium layer 306. The display medium layer 306 is sealed between the color filter substrate 304 and the array substrate 208. In the embodiment, the display medium layer 306 may include a liquid crystal layer for displaying a picture, but is not limited thereto. In addition, the color filter substrate 304 may include a transparent substrate 210 and a color filter layer 310, and the color filter layer 310 may be disposed on a side of the transparent substrate 210 facing the array substrate 208. The touch element 212 is disposed on the outer side of the transparent substrate 210 , that is, the transparent substrate 210 is disposed between the touch element 212 and the color filter layer 310 . In this embodiment, the touch display panel 300 can further include a cover plate 312 covering the touch element 212 and the transparent substrate 210 for protecting the touch element 212. The decorative layer 214 is disposed on the periphery of the cover plate 312. Moreover, the adhesive layer 206 can be disposed between the cover plate 312 and the transparent substrate 210 for bonding the cover plate 312 and the transparent substrate 210.

Please refer to Figure 10. Compared with the second embodiment, the display panel of the present embodiment is an organic light emitting diode display panel, and the transparent substrate 210 is used as a cover plate, so that the touch display panel 400 of the embodiment can also be compared with the second embodiment. The touch display panel omits a substrate. That is, the touch display panel 400 of the present embodiment includes a transparent substrate 210, an array substrate 208, an organic light emitting diode layer 402, a touch element 212, and a sealant 404. The transparent substrate 210 is disposed opposite to the array substrate 208, and the organic light emitting diode layer 402 is disposed on one side of the array substrate 208 facing the transparent substrate 210, and the touch component 212 is disposed on the transparent substrate 210 facing the array substrate 208. On one side. Moreover, the sealant 404 can be disposed between the transparent substrate 210 and the array substrate 208 for connection. The transparent substrate 210 and the array substrate 208 are combined.

In addition, the above embodiments are merely illustrative, and between the components and the film layer, for example, a transparent substrate, a touch component, a decorative layer, a protective layer, a sealant, an array substrate, etc., other components may be added as needed. The layers of the film between the relative positions are included in the present invention as long as they conform to variations in the features of the present invention. For example, the touch element may be directly disposed on the transparent substrate, or an insulating layer (SiO2 or SiNx, etc.) may be selectively interposed between the touch element and the transparent substrate. The above embodiments are all disposed on the transparent substrate. The meaning of the above.

In summary, in the touch panel of the present invention, the sidewall of the opening of the patterned insulating layer is substantially aligned with the sidewall of the first electrode, so that the first electrode and the second electrode strip do not need to cross the patterned insulation. The side walls of the layer prevent the first electrode and the second electrode strip from being broken or scratched. As a result, the thickness of the patterned insulating layer can be increased to improve the touch sensitivity of the touch panel. Moreover, by covering the spacing between the first electrode and the second electrode strip through the patterned insulating layer, the difference in reflectivity of the light entering the touch panel can be reduced, thereby reducing the visibility of the touch component.

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.

102‧‧‧Transparent substrate

104‧‧‧Touch components

106a‧‧‧First cable

106b‧‧‧first electrode

108‧‧‧patterned insulation

108a‧‧‧ Opening

110‧‧‧Second electrode strip

110a‧‧‧second cable

110b‧‧‧second electrode

G‧‧‧ gap

M1‧‧‧First conductive pattern layer

M2‧‧‧Second conductive pattern layer

Z‧‧‧projection direction

Claims (17)

A touch panel includes: a transparent substrate; a plurality of first electrode strips disposed on the transparent substrate, and each of the first electrode strips includes a plurality of first connecting lines and a plurality of first electrodes, wherein each of the first electrodes a connecting line electrically connecting any two adjacent first electrodes arranged along a first direction, each of the first connecting lines comprising an intermediate portion and two end portions respectively located at two sides of the intermediate portion; a pattern The insulating layer is disposed on the transparent substrate and the intermediate portion of each of the first connecting lines, and has a plurality of openings, wherein the two ends of each of the first connecting lines are respectively exposed by two adjacent openings And the first electrodes are respectively disposed on the transparent substrate in each of the openings, and electrically connected to the ends of the adjacent first connecting lines; and the plurality of second electrode strips are disposed on On the patterned insulating layer, each of the second electrode strips extends in a second direction different from the first direction, and the first electrode strips and the second electrode strips are insulated from each other through the patterned insulating layer . The touch panel of claim 1, wherein a gap is formed between each of the second electrode strips and the adjacent first electrodes, and the second electrode strips and the first electrodes are located in the openings One electrode is on a different plane. The touch panel of claim 1, wherein an area of each of the first electrodes is substantially the same or smaller than an area of each of the openings of the patterned insulating layer. The touch panel of claim 1, wherein the first electrodes and the second electrode strips are formed by a same conductive pattern layer. The touch panel of claim 1, wherein each of the second electrode strips includes a plurality of second electrodes and a plurality of second connecting lines, and each of the second connecting lines is connected to any two adjacent and along the second The second electrodes arranged in the direction, the second connecting lines and the first connecting lines of the first electrode strips are mutually staggered, and the patterned insulating layers are insulated from each other. The touch panel of claim 1, wherein a thickness of the patterned insulating layer is greater than a thickness of each of the first connecting lines, and a thickness of the patterned insulating layer is less than or equal to 3 micrometers. The touch panel of claim 1, wherein the thickness of the patterned insulating layer is greater than 8 times the thickness of each of the first connecting lines. The touch panel of claim 1, wherein the transparent substrate is a glass plate, a plastic plate, a glass sheet, a plastic film or a substrate of a display. The touch panel of claim 1, further comprising a decorative layer disposed on at least one side of the transparent substrate. A touch display panel includes: a touch panel, comprising: a transparent substrate; a touch component disposed on the transparent substrate, wherein the touch component comprises: a plurality of first electrode strips disposed on the transparent substrate And each of the first electrode strips includes a plurality of first connecting lines and a plurality of first electrodes, wherein each of the first connecting lines is electrically connected to any two of the first adjacent ones and arranged along a first direction Each of the first connecting lines includes an intermediate portion and two end portions respectively located at two sides of the intermediate portion; a patterned insulating layer disposed on the transparent substrate and the intermediate portion of each of the first connecting lines Dividing a plurality of openings, wherein the two ends of each of the first connecting lines are respectively exposed by the two adjacent openings, and the first electrodes are respectively disposed on the transparent substrate in each of the openings And electrically connecting the ends of the adjacent first connecting lines; and a plurality of second electrode strips disposed on the patterned insulating layer, and each of the second electrode strips is different from the One of the first directions extends in a second direction, and the first electrode strips and the second electrode strips are insulated from each other through the patterned insulating layer; and a display panel is disposed on one side of the touch panel. The touch display panel of claim 10, wherein the display panel is a liquid crystal display panel, an organic light emitting display panel, an electrowetting display panel, or an electrophoretic display panel. The touch display panel of claim 10, wherein a gap is formed between each of the second electrode strips and the adjacent first electrodes, and the second electrode strips are located in the openings The first electrodes are located on different planes. The touch display panel of claim 10, wherein an area of each of the first electrodes is substantially the same or smaller than an area of each of the openings of the patterned insulating layer. The touch display panel of claim 10, wherein the first electrodes and the second electrode strips are formed by a same conductive pattern layer. The touch display panel of claim 10, wherein each of the second electrode strips comprises a plurality of second electrodes and a plurality of second connecting lines, and each of the second connecting lines is connected to any two adjacent and along the first The second electrodes arranged in two directions, each of the second connecting lines and each of the first connecting lines of the first electrode strips are staggered with each other, and the patterned insulating layers are insulated from each other. The touch display panel of claim 10, wherein the patterned insulating layer has a thickness greater than a thickness of each of the first connecting lines and less than or equal to 3 micrometers. The touch display panel of claim 10, wherein the thickness of the patterned insulating layer is greater than 8 times the thickness of each of the first connecting lines.