CN203299774U - Touch panel and touch display panel - Google Patents

Abstract

A touch panel and a touch display panel. The touch panel includes a flexible substrate, a touch array, a plurality of metal traces, and a plurality of contact pads. The flexible substrate includes a touch area and a peripheral circuit area. The peripheral circuit area includes a first area adjacent to the first side of the touch control area, a second area adjacent to the second side of the touch control area, and a first connection area connecting the first area and the second area, wherein the contact pad is located in the second area. The flexible substrate includes a strip-shaped groove located at the interface between the first area and the touch area, and at the interface between the first connection area and the second area, so that the flexible substrate is bent from the strip-shaped groove.

Description

Touch panel and touch display panel

technical field

The utility model relates to a panel and a display panel, in particular to a touch panel and a touch display panel.

Background technique

With the rapid development and application of information technology, wireless mobile communication and information home appliances, many information products have changed from traditional keyboard or mouse input devices to touch The touch panel acts as an input device.

Currently, touch panels can be roughly classified into resistive, capacitive, infrared and ultrasonic touch panels, among which resistive touch panels and capacitive touch panels are the most common products. As far as the capacitive touch panel is concerned, the multi-touch feature provides a more user-friendly operation mode, making the capacitive touch panel favored by the market.

Generally speaking, the capacitive touch panel detects the touch position of the finger or the conductive object by changing the capacitance value caused by the user touching the capacitive touch panel with the finger or the conductive object. Furthermore, the capacitive touch panel generally has a first conductive layer and a second conductive layer that are electrically insulated from each other. When the user does not touch the touch panel, there is an initial capacitance between the conductive layers. When the user touches the touch panel, the capacitance value will change between the conductive layers, thus changing the original capacitance value. At this time, the position touched by the user can be determined by determining the position of the changed capacitance value.

FIG. 1 is a schematic partial top view of a conventional touch panel. The touch panel 100 includes a substrate 110 , a touch array 120 , a plurality of pads 130 and a plurality of metal wires 140 . The substrate 110 can be divided into a touch area A1 and a peripheral circuit area A2 surrounding the touch area A1. The touch array 120 is disposed in the touch area A1, and the pads 130 and metal wires 140 are disposed in the peripheral circuit area A2, wherein each metal wire 140 is electrically connected to the touch array 120 and one of the pads 130 , so that the touch panel 100 can perform touch detection. However, the pads 130 and the metal traces 140 need to occupy a certain area of the substrate 110 , so it is difficult to realize a narrow frame design. In addition, in order to prevent the user from seeing the pads 130 and the metal traces 140 located in the peripheral circuit area A2 , the touch panel 100 is additionally provided with a black matrix 150 covering the peripheral circuit area A2 . Therefore, the application scope of the touch panel 100 is limited.

Contents of the invention

The purpose of the utility model is to provide a touch panel with a narrow frame design.

Another object of the present invention is to provide a touch display panel with a narrow frame design.

To achieve the above object, a touch panel of the present invention includes a flexible substrate, a touch array located in the touch area, a plurality of pads located in the second area, and a touch panel extending from the touch area to the periphery A plurality of metal traces in the circuit area are arranged on the upper surface. The flexible substrate has opposite upper and lower surfaces. The flexible substrate includes a touch area and a peripheral line area, wherein the peripheral line area includes a first area adjacent to the first side of the touch area, a second area adjacent to the second side of the touch area, and a first connection area connected to the first district and the second district. The flexible substrate includes strip grooves on the lower surface. The strip groove is located at the junction of the first area and the touch area, and at the junction of the first connection area and the second area, so that the flexible substrate is bent from the strip groove so that the flexible substrate And some metal traces are bent.

In an embodiment of the present invention, the above-mentioned peripheral circuit area is also adjacent to the third side of the touch control area opposite to the first side, and the peripheral circuit area further includes a third area adjacent to the third side and connecting the second area and the second area. In the second connection area of the third area, a part of the metal wiring extends from the touch area to the corresponding pad through the first area, the first connection area and the second area, and the other part of the metal line extends from the touch area through The third area, the second connection area and the second area extend to the corresponding pads, and the rest of the metal traces extend from the touch area to the corresponding pads through the second area. The flexible base material also includes another strip-shaped groove located at the junction of the touch area and the third area, and the junction of the second connection area and the second area, so that the flexible substrate can pass through the strip-shaped groove and The other strip-shaped groove is bent so as to be in a double-sided bent state.

In an embodiment of the present invention, the above-mentioned touch panel further includes a cover plate covering the touch area and the second area.

In an embodiment of the present invention, the above-mentioned touch array is located between the cover plate and the flexible substrate.

In an embodiment of the present invention, the above-mentioned flexible base material is located between the touch array and the cover plate.

In an embodiment of the present invention, the above-mentioned touch panel further includes a bonding layer disposed between the flexible base material and the cover plate.

In an embodiment of the present invention, the bending angle of the above-mentioned flexible base material is 90 degrees.

In an embodiment of the present invention, the ratio of the depth of the strip-shaped grooves to the thickness of the flexible substrate is greater than or equal to 50% and less than 100%.

In an embodiment of the present invention, the above-mentioned touch array includes a plurality of first sensing series electrically isolated from each other, and a plurality of second sensing series electrically isolated from each other, and these first sensing series The sensing series are electrically insulated from the second sensing series and arranged alternately.

In an embodiment of the present invention, the first sensing series and the second sensing series mentioned above are the first sensing series and the first sensing series made of metal oxide, nano silver, carbon nanotube or graphene. the second sensing series.

A touch display panel of the present invention includes the aforementioned touch panel and a display panel, the touch panel includes a cover plate, the cover plate covers the touch area and the second area, wherein the flexible base material is located between the cover plate and the second area. between display panels.

Based on the above, the utility model arranges the strip-shaped groove at the junction of the touch area and the peripheral circuit area, so as to bend the peripheral circuit area on at least one side of the touch area, so that the peripheral circuit area located on the side The surrounding wires in the touch panel will not be seen by the user, thereby eliminating the need for the existing black matrix, and enabling the touch panel to have a narrow frame or even a frameless design.

In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail with accompanying drawings.

Description of drawings

FIG. 1 is a schematic partial top view of a conventional touch panel.

2A to 2E are schematic diagrams of a manufacturing process of a touch panel according to an embodiment of the present invention.

3A to 3D are schematic cross-sectional views of the line A-A' in FIGS. 2A to 2D respectively.

4A and 4B are schematic cross-sectional views of two types of touch display panels using the touch panel of the embodiment shown in FIG. 2E .

5A is a schematic top view of a touch panel before bending according to another embodiment of the present invention.

FIG. 5B is a schematic side view of the touch panel in FIG. 5A after being bent.

Wherein, the reference signs are explained as follows:

100, 200, 300: touch panel

110: Substrate

120, 220: touch array

130, 230: pad

140, 240: metal wiring

150: black matrix

210, 210': flexible substrate

222: first sensing series

222a: first sensing pad

222b: first connection part

224: second sensing series

224a: Second sensing pad

224b: second connection part

310: display panel

320: cover plate

330: bonding layer

10, 20: touch display panel

A1: Touch area

A2, A2': Peripheral line area

A21: District 1

A22: Second District

A23: The third district

AC1: first connection area

AC2: Second Connection Area

S1: First side

S2: second side

S3: third side

S21: upper surface

S22: lower surface

S23, S24: side wall surface

S31, S: Light-emitting surface

G, G': strip groove

H: hole

P: intersection

D: Depth

T: Thickness

θ, θ': angle

X: first direction

Y: Second direction

Z: third direction

A-A': section line

Detailed ways

2A to 2E are schematic views of a manufacturing process of a touch panel according to an embodiment of the present invention, wherein FIGS. 2A to 2D are schematic top views, and FIG. 2E is a schematic side view. 3A to 3D are schematic cross-sectional views of the line A-A' in FIGS. 2A to 2D respectively. Referring to FIG. 2A and FIG. 3A , a flexible substrate 210 is provided, wherein the material of the flexible substrate 210 is, for example, a transparent and flexible material. Here, the transparent material generally refers to a material with a high transmittance, rather than a material with a limited transmittance of 100%. In addition, flexible materials such as plastic or glass. The plastic material may include polyethylene, polypropylene, polystyrene, polymethyl methacrylate, polyvinyl chloride, nylon, polycarbonate, polyurethane, polytetrafluoroethylene, polyethylene terephthalate and other materials .

The flexible substrate 210 includes a touch area A1 and a peripheral circuit area A2. In this embodiment, the peripheral circuit area A2 is, for example, adjacent to the first side S1 and the second side S2 adjacent to the touch area A1. In addition, the peripheral line area A2 of this embodiment includes a first area A21 adjacent to the first side S1, a second area A22 adjacent to the second side S2, and a first connection area AC1 connecting the first area A21 and the second area A22.

2B and FIG. 3B, a touch array 220 and a plurality of pads 230 are formed on the upper surface S21 of the flexible substrate 210, wherein the touch array 220 is located in the touch area A1, and the pads 230 are located in the first In the second district A22. The touch array 220 includes, for example, a plurality of first sensing series 222 electrically insulated from each other and a plurality of second sensing series 224 electrically isolated from each other, wherein the first sensing series 222 and the second sensing series 224 are electrically isolated from each other. The series 224 are electrically insulated from each other and arranged in a staggered manner to achieve surface sensing. Further, the first sensing series 222 extends along the first direction X and is arranged along the second direction Y, and the second sensing series 224 extends along the second direction Y and is arranged along the first direction X. Referring to FIG. In this embodiment, the first direction X is, for example, perpendicular to the second direction Y, but the present invention is not limited thereto.

In addition, the first sensing series 222 of this embodiment includes a plurality of first sensing pads 222a and a plurality of first connecting portions 222b, wherein each first connecting portion 222b connects two adjacent first sensing pads 222a. The second sensing series 224 of this embodiment includes a plurality of second sensing pads 224a and a plurality of second connecting parts 224b, wherein each second connecting part 224b connects two adjacent second sensing pads 224a, and each The second connection portions 224b and one of the first connection portions 222b are arranged alternately and electrically insulated. A method for electrically insulating the second connection portion 224b from the first connection portion 222b is, for example, to form an insulating pattern (not shown) at the intersection P of the two.

It should be noted that this embodiment is only an example to illustrate one implementation of the touch array 220 , but the present invention is not limited thereto. In other embodiments, the first direction X is not necessarily perpendicular to the second direction Y, and the shapes of the first sensing pad 222a and the second sensing pad 224a can be other shapes.

In addition, the pads 230 of this embodiment are, for example, a plurality of conductive patterns formed simultaneously with the first sensing series 222 or the second sensing series 224 , and these conductive patterns are electrically insulated from each other. The material of the pad 230 can be the same as that of the first sensing series 222 or the second sensing series 224 , but the present invention is not limited thereto.

The material of the first sensing series 222 and the second sensing series 224 can be selected from metal oxide, nano-silver, carbon nanotubes, graphene or other materials with high transmittance and good conductivity. Metal oxides such as tin gallium oxide, zinc oxide, zinc gallium oxide, indium tin oxide, indium zinc oxide, aluminum tin oxide, aluminum zinc oxide, indium germanium zinc oxide, or selected from titanium, zinc , zirconium, antimony, indium, tin, aluminum, and silicon, etc., as one of the metal oxide groups, or a stacked layer of at least two of the above.

Referring to FIG. 2C and FIG. 3C , a plurality of metal traces 240 are formed on the upper surface S21 . The metal wires 240 extend from the touch area A1 to the peripheral circuit area A2 to electrically connect the touch array 220 and the pads 230 . In this embodiment, part of the metal traces 240 are electrically connected to the first sensing series 222 and the corresponding pads 230 , while the rest of the metal traces 240 are electrically connected to the second sensing series 224 and the corresponding pads 230 . pad 230 . Specifically, the metal traces 240 connected between the first sensing series 222 and the pads 230 extend from the touch area A1 to the corresponding The metal wires 240 connected between the second sensing series 224 and the pads 230 extend from the touch area A1 to the corresponding pads 230 through the second area A22 .

Please refer to FIG. 2D, FIG. 2E and FIG. 3D, a strip-shaped groove G is formed on the lower surface S22 of the flexible substrate 210, wherein the lower surface S22 and the upper surface S11 are the opposite surfaces of the flexible substrate 210 respectively. . The method for forming the strip-shaped groove G may be to remove the flexible substrate 210 to form the strip-shaped groove G by laser, knife grinding or drill.

Furthermore, the strip-shaped groove G is located at the junction of the first area A21 and the touch area A1, and at the junction of the first connection area AC1 and the second area A22. In this embodiment, the strip-shaped groove G extends along the second direction Y, for example, and extends from the side wall surface S23 of the flexible substrate 210 to the side wall surface S24 opposite to the side wall surface S23, wherein the side wall surface S23 is connected to the side wall surface S24. The wall surfaces S24 are connected between the lower surface S22 and the upper surface S11 respectively. In addition, the ratio of the depth D of the strip-shaped groove G to the thickness T of the flexible substrate 210 is greater than 50% and less than 100%, so that the flexible substrate 210 can be bent from the strip-shaped groove G to allow The flexible substrate 210 and some of the metal traces 230 are bent (see FIG. 2E ). Here, the fabrication of the touch panel 200 is preliminarily completed.

Please refer to FIG. 2D and FIG. 2E , the flexible substrate 210 of this embodiment is bent to the third direction Z with the strip groove G as the axis, for example. Specifically, before bending, the flexible substrate 210 of this embodiment is parallel to the XY plane (as shown in FIG. 2D ), and after bending, it corresponds to the first region A21 and the first connection region AC1 The flexible substrate 210 is parallel to the YZ plane, and the unbent flexible substrate 210 (referring to the flexible substrate 210 corresponding to the touch area A1 and the second area A22) is still parallel to the XY plane . In other words, the bending angle θ of the flexible substrate 210 is about 90 degrees, but the present invention is not limited thereto. Specifically, the angle θ is related to factors such as the flexibility of the flexible substrate 210 , the depth of the strip groove G, and the thickness of the flexible substrate 210 , and the angle θ can be adjusted according to actual applications.

This embodiment is not used to limit the range of the angle θ, but to explain that by disposing the strip groove G at the junction of the touch area A1 and the peripheral circuit area A2 (referring to the junction of the touch area A1 and the first area A21 and the junction of the first connection area AC1 and the second area A22), so as to bend the peripheral line area A2 located on at least one side of the touch area A1 (here refers to the first side of the first side of the touch area A1 area A21 and the first connection area AC1), so that the peripheral wiring 240 located in the peripheral circuit area A2 on the side cannot be seen by the user, thereby eliminating the setting of the existing black matrix on the side, and making the touch The control panel 200 has a design with a narrow frame or even no frame in the first direction X.

Two implementations of the touch display panel applying the embodiment of FIG. 2B will be described below with reference to FIG. 4A and FIG. 4B . Referring to FIG. 4A , the touch display panel 10 includes a touch panel 200 and a display panel 310 as shown in FIG. 2E . In this embodiment, the lower surface S22 of the flexible substrate 210 faces the light-emitting surface S31 of the display panel 310 , so that the flexible substrate 210 that is not bent is located between the touch array 220 and the display panel 310 . The display panel 310 can be a liquid crystal display panel, an organic electroluminescent display panel, an electrophoretic display panel, a plasma display panel, an electrowetting display panel, a field emission display panel or other types of display panels.

In this embodiment, in order to protect the components in the touch panel 200 (such as the touch array 220, the pad 230 or the metal wiring 240 in FIG. 2E ) and/or increase the structural strength of the touch panel 200, the touch The panel 200 may further include a cover plate 320 covering the touch area A1 (shown in FIG. 2E ) and the second area A22 . The cover plate 320 is, for example, a transparent plastic plate or a transparent strengthened glass substrate. In detail, the material of the cover plate 320 may be polymethyl methacrylate (PMMA), acrylic resin or other suitable transparent materials. The material of the cover plate 320 in this embodiment may not be limited to a flexible material.

In this embodiment, the cover plate 320 is disposed on the touch array 220 , and the touch array 220 is located between the cover plate 320 and the flexible substrate 210 , but the present invention is not limited thereto. As shown in FIG. 4B , the flexible substrate 210 of the touch display panel 20 can also be located between the touch array 220 and the cover 320 . In detail, in the embodiment of FIG. 4B , the upper surface S21 of the flexible substrate 210 faces the light-emitting surface S31 of the display panel 310 , and the touch array 220 is located between the upper surface S21 and the light-emitting surface S31 . In addition, the lower surface S22 of the flexible substrate 210 faces the cover plate 320 . In this embodiment, the touch panel 200 may further include a bonding layer 330 located between the flexible substrate 210 and the cover 320 , wherein the bonding layer 330 may be optical glue, pressure-sensitive glue or ultraviolet water glue.

In the embodiment of FIG. 4A and FIG. 4B , since the touch panel 200 adopted by the touch display panels 10 and 20 can have a design with a narrow border or even no border, therefore, under the display panel 310 of the same size, the touch panel 200 in FIG. 4A and FIG. The touch display panels 10 and 20 of the embodiment shown in FIG. 4B can not only have a relatively large touch area, but also avoid reducing the light transmittance of the touch display panel due to the configuration of the black matrix in the existing touch panel. In other words, the touch display panels 10 and 20 of the embodiment shown in FIG. 4A and FIG. 4B can not only be matched with a display panel 310 having a narrow frame or even a frameless design, but also can effectively improve the light transmittance of the touch display panels 10 and 20 .

In addition, the touch display panels 10 and 20 may further include a front bezel (not shown) and a back bezel (not shown) corresponding to the front bezel, wherein the front bezel and the back bezel combine the above components (for example The display panel 310, the touch panel 200, the cover plate 320, etc.) are accommodated therein. Furthermore, the back frame is used to carry the above components, and the front frame covers the cover plate 320 , that is, the front frame covers the light emitting surfaces S of the touch display panels 10 and 20 . The front frame also has an opening exposing the touch area, so that the user can touch the touch area. In addition, the bent portion of the flexible base material 210 in the first direction X can be covered by the front frame so as not to be seen by the user. Accordingly, compared with the existing touch display panels, the touch display panels 10 and 20 can have narrow frame or even no frame design in the first direction X, and can have good light penetration.

The above-mentioned touch panel 200 is illustrated with a state of one side bending, but the present invention is not limited thereto. The double-sided bending of the touch panel will be described below with reference to FIG. 5A and FIG. 5B . 5A is a schematic top view of a touch panel before bending according to another embodiment of the present invention. FIG. 5B is a schematic side view of the touch panel in FIG. 5A after being bent. Please refer to FIG. 5A and FIG. 5B , the touch panel 300 of this embodiment has a similar structure to the touch panel 200 of FIG. 2E , and the differences between the two include the following. First of all, the peripheral circuit area A2' of this embodiment is adjacent to three adjacent sides of the touch area A1. Specifically, the peripheral circuit area A2' of this embodiment is also adjacent to the third side S3 of the touch area A1, wherein the third side S3 and the first side S1 are opposite sides of the touch area A1. In addition, the peripheral line area A2' further includes a third area A23 adjacent to the third side S3 and a second connecting area AC2 connecting the second area S22 and the third area A23. In this embodiment, a part of the metal wires 240 extends from the touch area A1 to the corresponding pad 230 through the first area S21, the first connection area SC1 and the second area S22, and the other part of the metal wires 240 Extend from the touch area A1 to the corresponding pad 230 through the third area A23, the second connection area AC2 and the second area A22, and the rest of the metal traces 240 pass through the second area A22 from the touch area A1. extending to the corresponding pads 230 .

In addition, the flexible substrate 210' further includes another strip-shaped groove G' located at the junction of the touch area A1 and the third area A23, and at the junction of the second connection area AC2 and the second area A22. In this example. The strip-shaped groove G' extends along the second direction Y, for example, and extends from the side wall surface S23 of the flexible substrate 210' to the side wall surface S24 opposite to the side wall surface S23. That is, the stripe groove G' of this embodiment is parallel to the stripe groove G. In addition, the ratio of the depth of the strip-shaped groove G' to the thickness of the flexible substrate 210' is greater than 50% and less than 100%, so that the flexible substrate 210' can be bent from the strip-shaped groove G In addition, the flexible substrate 210' can also be bent from the strip-shaped groove G', so that the flexible substrate 210' is bent on both sides (see FIG. 5B).

Please refer to FIG. 5A and FIG. 5B , the flexible base material 210' of this embodiment, for example, is bent to a third direction Z with strip-shaped grooves G and G' as axes respectively. Specifically, before bending, the flexible substrate 210' of this embodiment is parallel to the XY plane (as shown in FIG. 5A ), and after bending, it corresponds to the first area A21 and the first connection area. The flexible base material 210' of AC1, the third area A23, and the second connection area AC2 is parallel to the YZ plane, and the flexible base material 210' that has not been bent (referring to the corresponding touch area A1 and the second area The flexible substrate 210') of A22 is still parallel to the XY plane. In other words, the bending angles θ, θ' of the flexible substrate 210' are about 90 degrees, but the present invention is not limited thereto. Specifically, the angles θ and θ' are related to factors such as the flexibility of the flexible substrate 210', the depth of the strip grooves G and G', and the thickness of the flexible substrate 210', and the angle θ , θ' can be adjusted depending on the actual application, wherein the angle θ may not be equal to the angle θ'.

To be more specific, this embodiment is not used to limit the range of the angles θ and θ', but to illustrate that by disposing the strip-shaped grooves G and G' at the junction of the touch area A1 and the peripheral circuit area A2 (finger touch The junction of the control area A1 and the first area A21, the junction of the first connection area AC1 and the second area A22, the junction of the touch area A1 and the third area A23, and the junction of the second connection area AC2 and the second area A22 junction), so as to bend the peripheral line area A2 located on both sides of the touch area A1 (here refers to the first area A21 located on the first side of the touch area A1, the first connection area AC1, and the first connection area A1 located on the touch area A1 The third area A23 and the second connection area AC2 on the third side of the third side), so that the peripheral wiring 240 located in the peripheral line area A2 on the side (referring to the first side S1 and the third side S3) will not be used It can be seen that the arrangement of the existing black matrix on the side is eliminated, and the touch panel 300 has a narrow border or even no border design in the first direction X.

Similar to the touch panel 200 , the touch panel 300 can also be applied to a touch display panel, and its type can refer to the implementation forms in FIG. 4A and FIG. 4B , and will not be repeated here. The touch display panel is, for example, an electronic device such as a mobile phone or a tablet computer. Generally speaking, the side walls of these electronic devices often need to be provided with buttons or sound source holes. In this embodiment, the metal wiring 240 can be arranged at a position other than the corresponding button or sound source hole of the flexible substrate 210 ′, and by hollowing out the position of the flexible substrate 210 ′ corresponding to the button or sound source hole , that is, a hole H is formed on the flexible base material 210 ′, and a button or a sound source hole can be arranged at a desired position. In other words, the double-sided bending design of this embodiment not only enables the touch display panel to have a narrow frame or even a frameless design and high penetration rate, but also increases the flexibility of the layout of the metal traces 240 and increases the flexibility of the button or sound source. Elasticity in the location of the hole settings.

To sum up, the utility model arranges the strip groove at the junction of the touch area and the peripheral circuit area, so as to bend the peripheral circuit area located on at least one side of the touch area, so that the peripheral area located on the side The surrounding wires in the wiring area will not be seen by the user, thereby eliminating the need for the existing black matrix, and enabling the touch panel to have a design with narrow borders or even no borders.

Although the present utility model has been disclosed above with the embodiments, it is not intended to limit the present utility model. Any person skilled in the art may make some modifications and modifications without departing from the spirit and scope of the present utility model. Therefore, the scope of protection of the present utility model should be defined by the appended claims.

Claims (12)

1. A touch panel, characterized in that, comprising: A flexible base material has an opposite upper surface and a lower surface, the flexible base material includes a touch area and a peripheral circuit area, wherein the touch area includes an adjacent first side and a first side On two sides, the peripheral line area includes a first area adjacent to the first side of the touch area, a second area adjacent to the second side of the touch area and connecting the first area and the second area a first connecting region of; a touch array configured on the upper surface and located in the touch area; a plurality of pads are disposed on the upper surface and located in the second region; and A plurality of metal traces are arranged on the upper surface and extend from the touch area to the peripheral circuit area to electrically connect the touch array and the pads. The flexible substrate includes a A strip-shaped groove on the lower surface, the strip-shaped groove is located at the junction of the first area and the touch area, and at the junction of the first connection area and the second area, so that the flexibility The substrate is bent from the strip-shaped groove so that the flexible substrate and some of the metal traces are in a bent state. 2. The touch panel according to claim 1, wherein the peripheral wiring area is also adjacent to a third side of the touch area opposite to the first side, and the peripheral wiring area also includes a third side adjacent to the third side. A third area on the side and a second connection area connecting the second area and the third area, a part of the metal traces pass from the touch area through the first area, the first connection area and the second connection area The second area extends to the corresponding pads, and the other part of the metal traces extends from the touch area to the corresponding pads through the third area, the second connection area and the second area. , and the rest of the metal traces extend from the touch area to the corresponding pads through the second area, and the flexible substrate further includes another strip-shaped groove, and the other strip-shaped groove The groove is located at the junction of the touch area and the third area, and at the junction of the second connection area and the second area, so that the flexible substrate can pass through the strip groove and the other strip groove The groove is bent so as to be in a bilaterally bent state. 3. The touch panel according to claim 1, further comprising: A cover plate covers the touch area and the second area. 4. The touch panel according to claim 3, wherein the touch array is located between the cover plate and the flexible substrate. 5. The touch panel as claimed in claim 3, wherein the flexible substrate is located between the touch array and the cover. 6. The touch panel according to claim 5, further comprising: A bonding layer is disposed between the flexible base material and the cover plate. 7. The touch panel as claimed in claim 1, wherein the bending angle of the flexible substrate is 90 degrees. 8 . The touch panel according to claim 1 , wherein a ratio of the depth of the strip groove to the thickness of the flexible substrate is greater than or equal to 50% and less than 100%. 9. The touch panel according to claim 1, wherein the touch array comprises: a plurality of first sensing series electrically insulated from each other; and The plurality of second sensing series are electrically insulated from each other, electrically insulated from the first sensing series and arranged in a staggered manner. 10. The touch panel according to claim 9, wherein the first sensing series and the second sensing series are made of metal oxide, silver nanometer, carbon nanotube or graphene. The first sensing series and the second sensing series. 11. A touch display panel, characterized in that it comprises: The touch panel according to any one of claims 1, 2, 7-10; the touch panel comprises a cover plate covering the touch area and the second area; and A display panel, wherein the flexible substrate is located between the cover plate and the display panel. 12. A touch display panel, characterized in that it comprises: The touch panel according to any one of claims 3-6; and A display panel, wherein the flexible substrate is located between the cover plate and the display panel.

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