Touch panel and manufacturing method thereof, and display touch device

Abstract

A touch panel comprises: a plane area and a curved area located on at least one side of the plane area. The touch panel has at least one notch adjacent to the curved area. The touch panel comprises at least one first touch peripheral area located around the at least one notch, and the at least one first touch peripheral area is provided with a light-transmissive first wiring layer.

Description

Technical Field

[0001] This article relates to but is not limited to the field of touch technology, and in particular to a touch panel and a preparation method thereof, and a display touch device. Background Art

[0002] With the development of portable electronic display devices, touch technology provides a new human-computer interaction interface, which is more direct and user-friendly. Touch technology is integrated with flat display technology to form a display touch device, which can make the flat display device have a touch function. Summary of the invention

[0003] The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

[0004] Embodiments of the present disclosure provide a touch panel and a method for manufacturing the same, and a display touch device.

[0005] On the one hand, an embodiment of the present disclosure provides a touch panel, comprising: a plane area, and a curved area located on at least one side of the plane area. The touch panel has at least one notch adjacent to the curved area. The touch panel includes at least one first touch peripheral area located around the at least one notch, and the at least one first touch peripheral area is provided with a light-transmitting first wiring layer.

[0006] In some exemplary embodiments, the planar region has a plurality of corner regions, and the at least one notch is located at a periphery of at least one corner region of the planar region.

[0007] In some exemplary embodiments, the planar region is substantially in the shape of a rounded rectangle, four sides of the planar region are provided with curved regions, and a gap is provided between the curved regions on two adjacent sides.

[0008] In some exemplary embodiments, the edge of the touch panel corresponding to at least one notch includes a first straight line segment, an arc segment, and a second straight line segment connected in sequence, or the edge of the touch panel corresponding to the at least one notch includes a first straight line segment, a first transition segment, an arc segment, a second transition segment, and a second straight line segment connected in sequence; the extension directions of the first straight segment and the second straight line segment intersect.

[0009] In some exemplary embodiments, the at least one first touch peripheral area partially overlaps with the planar area, and partially overlaps with the curved area adjacent to the at least one notch.

[0010] In some exemplary embodiments, the touch panel further includes: at least one second touch peripheral area, the at least one second touch peripheral area at least partially overlapping with the at least one curved area. The at least one second touch peripheral area is provided with a second wiring layer, the second wiring layer and the first wiring layer are of a different layer structure. The first wiring layer in the first touch peripheral area is electrically connected to the second wiring layer in the adjacent second touch peripheral area.

[0011] In some exemplary embodiments, the touch panel further includes: a touch area, the touch area partially overlaps with the planar area and the at least one curved area. A plurality of first touch units and a plurality of second touch units are arranged in the touch area; at least one first touch unit includes a plurality of first touch electrodes and a plurality of first connecting portions arranged in sequence along a first direction; at least one second touch unit includes a plurality of second touch electrodes and a plurality of second connecting portions arranged in sequence along a second direction; and the first direction intersects with the second direction.

[0012] In some exemplary embodiments, the plurality of first touch electrodes, the plurality of second touch electrodes and the plurality of first connecting portions are arranged in the same layer on the touch layer, the plurality of second connecting portions are arranged in the bridge layer, and the second connecting portions are connected to adjacent second touch electrodes through via holes on the touch insulating layer between the bridge layer and the touch layer. Alternatively, the plurality of first touch electrodes, the plurality of second touch electrodes and the plurality of second connecting portions are arranged in the same layer on the touch layer, the plurality of first connecting portions are arranged in the bridge layer, and the first connecting portions are connected to adjacent first touch electrodes through via holes on the touch insulating layer between the bridge layer and the touch layer.

[0013] In some exemplary embodiments, the first routing layer and the touch layer are in the same layer structure, and the second routing layer and the bridge layer are in the same layer structure.

[0014] In some exemplary embodiments, the second wiring layer in the at least one second touch peripheral region includes at least one of the following: a plurality of first touch leads and a plurality of second touch leads; the first touch leads are connected to the first touch unit, and the second touch leads are connected to the second touch unit. The first wiring layer in the at least one first touch peripheral region includes: a plurality of lead connection lines, at least one of the plurality of lead connection lines is configured to be connected to the first touch lead or the second touch lead in the adjacent second touch peripheral region.

[0015] In some exemplary embodiments, the plurality of lead connection lines of the first routing layer have connection ends, and the connection ends of adjacent lead connection lines are staggered.

[0016] In some exemplary embodiments, the ratio of the width of the same routing line in the first routing layer to the width of the same routing line in the second routing layer is approximately equal to the ratio of the surface resistance of the first conductive material used in the first routing layer to the surface resistance of the second conductive material used in the second routing layer.

[0017] In some exemplary embodiments, the first conductive material includes a conductive material having a light transmittance greater than about 90%.

[0018] In some exemplary embodiments, the surface resistance of the first conductive material is about 10Ω / m 2 .

[0019] On the other hand, an embodiment of the present disclosure provides a display touch device, including: a display panel and the above-mentioned touch panel disposed on the display panel.

[0020] In some exemplary embodiments, the touch substrate of the touch panel is disposed on the display panel to form an external hang-on structure.

[0021] In some exemplary embodiments, the touch panel uses the encapsulation layer of the display panel as a touch substrate to form a covering surface structure.

[0022] In some exemplary embodiments, at least one corner region of the planar region of the touch panel has an arc-shaped edge, and the arc-shaped edge of the corner region faces the arc-shaped edge of the display panel.

[0023] In some exemplary embodiments, an orthographic projection of at least one notch of the touch panel on the display panel partially overlaps with a display area of ​​the display panel.

[0024] On the other hand, an embodiment of the present disclosure provides a method for manufacturing a touch panel. The touch panel includes: a plane area, and a curved area located on at least one side of the plane area; the touch panel has at least one notch adjacent to the curved area. The manufacturing method includes: forming a light-transmissive first wiring layer in at least one first touch peripheral area located around the at least one notch.

[0025] In some exemplary embodiments, the preparation method further includes: forming a second routing layer in at least one second touch peripheral area that at least partially overlaps with at least one bending area, and the first routing layer in the first touch peripheral area is electrically connected to the second routing layer in the adjacent second touch peripheral area.

[0026] Other aspects will be apparent upon reading and understanding the drawings and detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide an understanding of the technical solution of the present disclosure and constitute a part of the specification. Together with the embodiments of the present disclosure, they are used to explain the technical solution of the present disclosure and do not constitute a limitation on the technical solution of the present disclosure. The shape and size of one or more components in the accompanying drawings do not reflect the actual proportions and are only intended to illustrate the contents of the present disclosure.

[0028] Figure 1 A schematic diagram of a four-curved display product;

[0029] Figure 2 It is a three-dimensional schematic diagram of a display touch device according to at least one embodiment of the present disclosure;

[0030] Figure 3 It is a schematic plan view of a display touch device according to at least one embodiment of the present disclosure;

[0031] Figure 4 is a schematic plan view of a touch panel according to at least one embodiment of the present disclosure;

[0032] Figure 5 A schematic diagram of a driving architecture of a touch panel according to at least one embodiment of the present disclosure;

[0033] Figure 6 A schematic diagram of the structure of a touch electrode in the form of a metal grid according to at least one embodiment of the present disclosure;

[0034] Figure 7 is a partial schematic diagram of a touch panel according to at least one embodiment of the present disclosure;

[0035] Figure 8 for Figure 3 A partial enlarged schematic diagram of the middle area S1;

[0036] Fig. 9 for Figure 8 Schematic diagram of the local section along the PP direction;

[0037] Fig.10 for Figure 3 A partial enlarged schematic diagram of the middle area S1;

[0038] Fig.11 for Fig.10 A partial enlarged schematic diagram of the middle area P1;

[0039] Fig.12 for Fig.11 Schematic diagram of the local section along the QQ direction;

[0040] Fig.13 for Fig.10 A partial enlarged schematic diagram of the middle area P2;

[0041] Fig.14 for Figure 3A partial enlarged schematic diagram of the middle area S2;

[0042] Fig.15 for Figure 3 A partial enlarged schematic diagram of the middle area S3;

[0043] Fig.16 for Fig.15 A partial enlarged schematic diagram of the middle area P3;

[0044] Fig.17 for Figure 3 A partial enlarged schematic diagram of the middle area S4;

[0045] Fig.18 for Figure 8 Another partial cross-sectional schematic diagram along the PP direction;

[0046] Fig.19 It is another three-dimensional schematic diagram of a display touch device according to at least one embodiment of the present disclosure;

[0047] Fig. 20 is another schematic plan view of a touch panel according to at least one embodiment of the present disclosure;

[0048] Fig.21 It is another three-dimensional schematic diagram of a display touch device according to at least one embodiment of the present disclosure;

[0049] Fig. 22 is another schematic plan view of a touch panel according to at least one embodiment of the present disclosure;

[0050] Fig.23 It is a schematic plan view of another display touch device according to at least one embodiment of the present disclosure;

[0051] Fig.24 It is a partial cross-sectional schematic diagram of a display touch device according to at least one embodiment of the present disclosure. DETAILED DESCRIPTION

[0052] The embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. The embodiments can be implemented in a plurality of different forms. A person skilled in the art can easily understand the fact that the method and content can be transformed into one or more forms without departing from the purpose and scope of the present disclosure. Therefore, the present disclosure should not be interpreted as being limited to the contents described in the following embodiments. In the absence of conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other arbitrarily.

[0053] In the drawings, the size of one or more components, the thickness of a layer, or an area is sometimes exaggerated for the sake of clarity. Therefore, one embodiment of the present disclosure is not necessarily limited to the size, and the shape and size of each component in the drawings do not reflect the true proportion. In addition, the drawings schematically show ideal examples, and one embodiment of the present disclosure is not limited to the shapes or values ​​shown in the drawings.

[0054] The ordinal numbers such as "first", "second", and "third" in the present disclosure are provided to avoid confusion of constituent elements, rather than to limit the quantity. The "plurality" in the present disclosure means a quantity of two or more.

[0055] In the present disclosure, for the sake of convenience, the words and phrases indicating the orientation or positional relationship, such as "middle", "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., are used to illustrate the positional relationship of the constituent elements with reference to the drawings. This is only for the convenience of describing the present specification and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. The positional relationship of the constituent elements is appropriately changed according to the direction in which the constituent elements are described. Therefore, it is not limited to the words and phrases described in the specification, and can be appropriately replaced according to the situation.

[0056] In the present disclosure, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, or a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate, or the internal connection of two elements. For ordinary technicians in this field, the meanings of the above terms in the present disclosure can be understood according to the circumstances. Among them, "electrical connection" includes the situation where constituent elements are connected together through an element with some electrical function. There is no special restriction on "elements with some electrical function" as long as they can transfer electrical signals between connected constituent elements. Examples of "elements with some electrical function" include not only electrodes and wirings, but also switching elements such as transistors, resistors, inductors, capacitors, and other elements with one or more functions.

[0057] In the present disclosure, a transistor refers to an element including at least three terminals: a gate electrode, a drain electrode, and a source electrode. A transistor has a channel region between a drain electrode (drain electrode terminal, drain region, or drain electrode) and a source electrode (source electrode terminal, source region, or source electrode), and current can flow through the drain electrode, the channel region, and the source electrode. In the present disclosure, a channel region refers to a region where current mainly flows.

[0058] In the present disclosure, in order to distinguish the two poles of the transistor other than the gate electrode, one of the electrodes is called the first pole and the other electrode is called the second pole. The first pole can be a source electrode or a drain electrode, and the second pole can be a drain electrode or a source electrode. In addition, the gate electrode of the transistor is called the control pole. In the case of using transistors with opposite polarities or when the current direction changes during circuit operation, the functions of the "source electrode" and the "drain electrode" are sometimes interchanged. Therefore, in the present disclosure, the "source electrode" and the "drain electrode" can be interchanged.

[0059] In the present disclosure, "parallel" means a state where the angle formed by two straight lines is greater than -10° and less than 10°, and therefore, also includes a state where the angle is greater than -5° and less than 5°. In addition, "perpendicular" means a state where the angle formed by two straight lines is greater than 80° and less than 100°, and therefore, also includes a state where the angle is greater than 85° and less than 95°.

[0060] In the present disclosure, "film" and "layer" may be interchanged. For example, "conductive layer" may be replaced with "conductive film" in some cases. Similarly, "insulating film" may be replaced with "insulating layer" in some cases.

[0061] The terms “about” and “substantially” in the present disclosure do not strictly define the limits, but allow for a range of process and measurement errors.

[0062] With the development of display technology, three-dimensional display products, such as dual-curved electronic devices, quad-curved electronic devices, etc., have gradually emerged to provide a better visual experience. Figure 1 This is a schematic diagram of a four-curved display product. Figure 1 As shown, the four-curved display product includes: a plane area A0 and a curved area B0 located around the plane area A0. The curved area B0 surrounds the periphery of the plane area A0. Figure 1 The touch panel of the four-curved display product shown is a rounded rectangle that matches the shape of the four-curved display product, and the touch panel needs to be bent on four sides. However, when the touch panel is bent on four sides, the four corner positions (such as Figure 1 The four corner positions C0 in the touch panel may be squeezed in different directions (for example, including squeezing stress in two perpendicular directions), which may easily cause wrinkles, resulting in cracks or breaks in the circuit of the touch panel, thereby causing poor touch.

[0063] In other embodiments, the display product may be a display product with at least one curved surface. When at least one side is bent, the corners are squeezed in at least one direction and wrinkles are easily generated, causing cracks or breaks in the circuit of the touch panel, thereby causing poor touch. In some embodiments, the display product may be a display product with two adjacent curved surfaces or two opposite curved surfaces.

[0064] At least one embodiment of the present disclosure provides a touch panel, comprising: a plane area, and a curved area located on at least one side of the plane area. The touch panel has at least one notch adjacent to the curved area. The touch panel includes at least one first touch peripheral area located around the at least one notch. A light-transmitting first wiring layer is provided in at least one first touch peripheral area. In some examples, the touch panel is a single-sided curved surface product, and the touch panel may have one or two notches, for example, the two notches are each located at an angle position adjacent to the side where the curved area of ​​the touch panel is located. Alternatively, the touch panel is a multi-sided curved product. For example, the touch panel is roughly rectangular, and the touch panel may have four notches, and the four notches are each located at the four corner positions of the touch panel. However, this embodiment is not limited to this. In some examples, the touch panel may be other special-shaped structures. For example, the touch panel may have N sides and N corners, where N is an integer greater than 2; a curved area is provided at at least one of the N sides, and a notch is provided at at least one corner adjacent to the curved area.

[0065] In the present disclosure, light-transmitting refers to a case where the light transmittance is approximately greater than 90%, and light-impermeable refers to a case where the light transmittance is not greater than 90%.

[0066] The touch panel provided by the embodiment of the present disclosure forms a notch at a position adjacent to the curved area, and sets the wiring around the notch in a relatively flat first touch peripheral area, so as to avoid wrinkles caused by bending of the touch panel and damage to the touch circuit, thereby improving the touch effect. Moreover, by setting the first wiring layer in the first touch peripheral area to be light-transmissive, it is possible to avoid the setting of the notch from affecting the display effect of the display area of ​​the display touch device where the touch panel is located.

[0067] In some exemplary embodiments, the plane area has a plurality of corner areas, and at least one notch is located at the periphery of at least one corner area of ​​the plane area. In some examples, the plane area is substantially a rounded rectangle, and the four sides of the plane area are provided with curved areas, and a notch is provided between the curved areas of two adjacent sides. In this example, the plane area has four corner areas, and the four corner areas have arc-shaped edges, and a notch is formed at the periphery of each corner area of ​​the plane area. However, this embodiment is not limited to this.

[0068] In some exemplary embodiments, the edge of the touch panel corresponding to at least one notch includes a first straight line segment, an arc segment, and a second straight line segment connected in sequence. The extension directions of the first straight line segment and the second straight line segment intersect. For example, the extension lines of the first straight line segment and the second straight line segment intersect at the center of the circle corresponding to the arc segment, and the center angle of the arc segment is about 80 to 100 degrees, for example, 90 degrees. In some examples, the shape of the touch panel before the notch is formed is roughly a rounded rectangle, and notches roughly in the shape of a fan ring can be formed at the four corners.

[0069] In some exemplary embodiments, the edge of the touch panel corresponding to at least one notch may include a first straight line segment, a first transition segment, an arc segment, a second transition segment, and a second straight line segment connected in sequence. The extension directions of the first straight line segment and the second straight line segment intersect. For example, the first transition segment and the second transition segment are arc lines, and a chamfer between the arc segment and the straight line segment may be formed. However, this embodiment is not limited to this. For example, the edge of the notch may be formed by connecting a plurality of straight line segments.

[0070] In some exemplary embodiments, the first touch peripheral area around at least one notch partially overlaps with the planar area and partially overlaps with the curved area adjacent to at least one notch. In some examples, the first touch peripheral area may be an area formed by connecting an edge portion of a corner area of ​​the planar area close to the notch and an edge portion of a curved area adjacent to the corner area close to the notch.

[0071] In some exemplary embodiments, the touch panel further includes: at least one second touch peripheral area, at least one second touch peripheral area at least partially overlapping with at least one curved area. At least one second touch peripheral area is provided with a second routing layer. The second routing layer and the first routing layer are heterogeneous structures. The first routing layer in the first touch peripheral area is electrically connected to the second routing layer in the adjacent second touch peripheral area. In this example, the first touch peripheral area is connected to the second touch peripheral area to form a touch peripheral area surrounding the touch area of ​​the touch panel. In some examples, the second routing layer may be a non-transparent routing layer. However, this embodiment is not limited to this. In some examples, the second routing layer and the first routing layer may both be translucent routing layers. In some examples, the first routing layer and the second routing layer may be arranged in the same layer.

[0072] In some exemplary embodiments, the touch panel further includes: a touch area, the touch area partially overlaps with the plane area and the at least one curved area. A plurality of first touch units and a plurality of second touch units are arranged in the touch area. At least one first touch unit includes a plurality of first touch electrodes and a plurality of first connecting portions arranged in sequence along a first direction; at least one second touch unit includes a plurality of second touch electrodes and a plurality of second connecting portions arranged in sequence along a second direction. The first direction intersects with the second direction.

[0073] In some exemplary embodiments, a plurality of first touch electrodes, a plurality of second touch electrodes, and a plurality of first connecting portions are arranged in the same layer on the touch layer, a plurality of second connecting portions are arranged in the bridging layer, and the second connecting portions are interconnected with adjacent second touch electrodes through via holes on the touch insulating layer between the bridging layer and the touch layer. Alternatively, a plurality of first touch electrodes, a plurality of second touch electrodes, and a plurality of second connecting portions are arranged in the same layer on the touch layer, a plurality of first connecting portions are arranged in the bridging layer, and the first connecting portions are interconnected with adjacent first touch electrodes through via holes on the touch insulating layer between the bridging layer and the touch layer. However, this embodiment is not limited to this.

[0074] In some exemplary embodiments, the first routing layer and the touch layer are in the same layer structure, and the second routing layer and the bridge layer are in the same layer structure. However, this embodiment is not limited to this. For example, the first routing layer, the touch layer and the bridge layer are all in different layers, and the second routing layer and the bridge layer are in the same layer structure. Or, for example, the first routing layer, the second routing layer and the touch layer are in the same layer structure.

[0075] In some exemplary embodiments, the second wiring layer in at least one second touch peripheral region includes at least one of the following: a plurality of first touch leads and a plurality of second touch leads. The first touch leads are connected to the first touch unit, and the second touch leads are connected to the second touch unit. The first wiring layer in at least one first touch peripheral region includes: a plurality of lead connection lines. At least one of the plurality of lead connection lines is configured to be connected to the first touch lead or the second touch lead in the adjacent second touch peripheral region.

[0076] In some exemplary embodiments, the plurality of lead connection lines of the first routing layer have connection ends, and the connection ends of adjacent lead connection lines are arranged in a staggered manner. In this exemplary embodiment, by arranging the connection ends of adjacent lead connection lines in a staggered manner, the spacing between adjacent lead connection lines can be reduced, supporting the realization of a touch panel with a narrow frame.

[0077] In some exemplary embodiments, the ratio of the routing width of the same routing line in the first routing layer to the routing width of the second routing layer is approximately equal to the ratio of the surface resistance of the first conductive material used in the first routing layer to the surface resistance of the second conductive material used in the second routing layer. In this exemplary embodiment, the routing width of the same routing line in the first routing layer and the second routing layer is set according to the ratio of the surface resistance of the conductive materials of the first routing layer and the second routing layer, so as to ensure the consistency of the overall routing impedance.

[0078] In some exemplary embodiments, the first conductive material may include a conductive material having a light transmittance greater than about 90%, and the second conductive material may include a metal material. For example, the first conductive material may be a metal material having a light transmittance greater than about 90%, or may be a transparent conductive material such as indium tin oxide (ITO). However, this embodiment is not limited to this.

[0079] In some exemplary embodiments, the surface resistance of the first conductive material is about 10Ω / m 2 However, this embodiment is not limited to this.

[0080] In some exemplary embodiments, the sheet resistance of the materials of the first touch electrode and the second touch electrode is greater than the sheet resistance of the first conductive material, for example, may be greater than about 4 times.

[0081] At least one embodiment of the present disclosure also provides a display touch device, including: a display panel and a touch panel arranged on the display panel. In some exemplary embodiments, the display panel may be a liquid crystal display (LCD, Liquid Crystal Display) panel, or may be an organic light emitting diode (OLED, Organic Light Emitting Diode) display panel, or may be a plasma display panel (PDP, Plasma Display Panel), or may be an electrophoretic display panel (EPD). In some examples, the display panel may be an OLED display panel. OLED is an active light-emitting display device with the advantages of self-luminescence, wide viewing angle, high contrast, low power consumption, and extremely high response speed. With the continuous development of display technology, a flexible display device (Flexible Display) using OLED as a light-emitting device and signal controlled by a thin film transistor (TFT, Thin Film Transistor) has become a mainstream product in the current display field.

[0082] In some exemplary embodiments, the touch panel may be an add-on mode touch panel. The touch panel may be attached to the display panel by a surface bonding method in which the entire surface is coated with optical clear resin (OCR) or optical clear adhesive (OCA), or by a frame bonding method in which frame adhesive is coated on all four edges. However, this embodiment is not limited to this.

[0083] Figure 2 It is a three-dimensional schematic diagram of a display touch device according to at least one embodiment of the present disclosure. Figure 3 It is a schematic plan view of a display touch device according to at least one embodiment of the present disclosure. Figure 3 for Figure 2The schematic top view of the display touch device shows that the four sides are in an unbent state. Figure 4 The present invention is a schematic plan view of a touch panel according to at least one embodiment of the present invention. Figure 4 for Figure 2 The diagram shown is a top view showing four sides of a touch panel of a touch control device in an unbent state.

[0084] In some exemplary embodiments, Figures 2 to 4 As shown, the display touch device includes a stacked display panel 1 and a touch panel 2. The touch panel 2 can be arranged on the display panel 1 by laminating to form an external structure. In a plane parallel to the display touch device, the touch panel 2 includes: a touch area 200 and a touch peripheral area 201 located outside the touch area 200. The display panel 1 includes: a display area 100 and a display peripheral area 110 located outside the display area 100. For example, the display panel 1 is roughly a rounded rectangle. Figure 3 The dotted line in FIG. 2 may represent the boundary of the touch area 200 of the touch panel 2. Figure 3 The dot-dash line in may represent a boundary of the display area 100 of the display panel 1 . Figure 3 The dotted line in represents the boundary between the plane area A1 and the curved area of ​​the touch panel 2. In some examples, the orthographic projection of the touch area 200 of the touch panel 2 on the display panel 1 partially overlaps with the display area 100. However, this embodiment is not limited to this. In some examples, the display area 100 of the display panel 1 may cover the orthographic projection of the touch area 200 of the touch panel 2 on the display panel 1.

[0085] In some exemplary embodiments, Figure 3 As shown, the touch panel 2 may have a first opening H. An optical device, such as a camera, an infrared light detector, etc., may be provided on the side of the display panel 1 away from the touch panel 2. The orthographic projection of the optical device on the touch panel 2 overlaps with the first opening H. In some examples, a second opening overlapping with the orthographic projection of the first opening H may be provided on the display panel 1. By providing an opening on the touch panel 2, it is beneficial for the optical device to receive external light. However, this embodiment is not limited to this.

[0086] In some exemplary embodiments, Figures 2 to 4 As shown, the touch panel 2 includes: a plane area A1 and curved areas located on four sides of the plane area A1. Figure 4As shown, the plane area A1 has four corner areas A11, A12, A13 and A14. The four corner areas A11 to A14 have arc-shaped edges, for example. The arcs of the arc-shaped edges of the four corner areas A11 to A14 can be the same, for example, the plane area A1 is roughly a rounded rectangle; or, the arcs of the arc-shaped edges of the four corner areas A11 to A14 can be different or the arcs of at least two corner areas can be the same. However, this embodiment is not limited to this.

[0087] In some exemplary embodiments, Figures 2 to 4 As shown, the arc-shaped edges of the corner areas of the plane area A1 of the touch panel 2 face the arc-shaped edges of the display panel 1. In this example, the four corner areas of the plane area A1 and the four corner areas of the display panel 1 are all arc-shaped, that is, have arc-shaped edges. However, this embodiment is not limited to this.

[0088] In some examples, such as Figures 2 to 4 As shown, the curved areas on the four sides of the plane area A1 are respectively rectangular areas extending outward from the four sides of the plane area A1. However, this embodiment is not limited to this. For example, the curved area can be a trapezoidal area extending outward from the four sides of the plane area A1; or, the curved area can be other shapes. In some examples, the shapes of the four curved areas can be different, or at least two of the curved areas have the same shape.

[0089] In some examples, such as Figures 2 to 4 As shown, the curved areas on the four sides of the plane area A1 include: a first curved area B1, a second curved area B2, a third curved area B3 and a fourth curved area B4. For example, the first curved area B1 is located on the left side of the plane area A1, the second curved area B2 is located on the upper side of the plane area A1, the third curved area B3 is located on the right side of the plane area A1, and the fourth curved area B4 is located on the lower side of the plane area A1. The first curved area B1 and the third curved area B3 are arranged opposite to each other, and the second curved area B2 and the fourth curved area B4 are arranged opposite to each other. In some examples, the four curved areas are all roughly rectangular. In some examples, the sizes of the first curved area B1 and the third curved area B3 can be the same, and the sizes of the second curved area B2 and the fourth curved area B4 are the same. However, this embodiment is not limited to this. For example, the size of the third curved area B3 can be larger than the size of the first curved area B1, or the size of the fourth curved area B4 is larger than the size of the second curved area B2. In addition, this embodiment does not limit the shape and size of the four curved areas.

[0090] In some exemplary embodiments, Figures 2 to 4 As shown, the touch panel 2 has four notches, each of which is located between two adjacent curved areas. All four notches are adjacent to the plane area A1. Figure 2 As shown, the four notches are located at the four corners of the touch panel 2. Figure 4 As shown, the four notches are respectively located at the periphery of the four corner areas of the plane area A1. A first notch C1 is provided between the first curved area B1 and the second curved area B2, a second notch C2 is provided between the second curved area B2 and the third curved area B3, a third notch C3 is provided between the third curved area B3 and the fourth curved area B4, and a fourth notch C4 is provided between the fourth curved area B4 and the first curved area B1. Among them, the first notch C1 is located at the periphery of the corner area A11 of the plane area A1, and the first notch C1 is surrounded by the corner area A11 of the plane area A1, the first curved area B1 and the second curved area B2. The second notch C2 is located at the periphery of the corner area A12 of the plane area A1, and the second notch C2 is surrounded by the corner area A12 of the plane area A1, the second curved area B2 and the third curved area B3. The third notch C3 is located at the periphery of the corner area A13 of the plane area A1, and the third notch C3 is surrounded by the corner area A13 of the plane area A1, the third curved area B3 and the fourth curved area B4. The fourth notch C4 is located at the periphery of the corner region A14 of the plane region A1 , and the fourth notch C4 is surrounded by the corner region A14 of the plane region A1 , the fourth bending region B4 , and the first bending region B1 .

[0091] In some exemplary embodiments, Figure 3 As shown, the orthographic projections of the four notches on the display panel 1 partially overlap with the display area 100 of the display panel 1. The orthographic projection of each notch on the display panel 1 overlaps with both the display area 100 and the display peripheral area 110 of the display panel 1.

[0092] In some examples, the shapes of the first notch C1, the second notch C2, the third notch C3, and the fourth notch C4 may be the same. Figure 4As shown, the first notch C1 is used as an example for explanation. The edge of the touch panel 2 corresponding to the first notch C1 includes a first edge C11, a second edge C12 and a third edge C13 connected in sequence. The first edge C11 is the edge of the first curved area B1, the second edge C12 is the edge of the corner area A11 of the plane area A1, and the third edge C13 is the edge of the second curved area B2. The first edge C11 and the third edge C13 can be straight line segments, and the second edge C12 can be an arc segment. For example, the lengths of the first edge C11 and the third edge C13 can both be about 10.8 millimeters (mm), and the center angle corresponding to the second edge C12 is about 90 degrees. In some examples, the touch panel 2 is roughly a rounded rectangle before the notch is formed, and the first notch C1 can be roughly a fan ring shape, and the corresponding center angle is about 90 degrees. However, this embodiment is not limited to this. In some examples, the first notch C1, the second notch C2, the third notch C3 and the fourth notch C4 can all be roughly fan ring shaped, and the degrees of the corresponding center angles can be different from each other. In some examples, the shapes of the first notch C1 , the second notch C2 , the third notch C3 , and the fourth notch C4 may be different from each other or at least two of them may be the same.

[0093] In some exemplary embodiments, Figures 2 to 4 As shown, the touch area 200 of the touch panel 2 partially overlaps with the plane area A1 and the four curved areas (i.e., the first curved area B1 to the fourth curved area B4). The edge of the plane area A1 close to the four notches (i.e., the first notch C1 to the fourth notch C4) does not belong to the touch area 200. The portion of at least one curved area away from the plane area 200 does not belong to the touch area 200. The boundary shape of the touch area 200 is similar to the boundary shape of the touch panel 2. In this example, the boundaries of the touch area 200 and the touch panel 2 have a similarity of more than 90%, that is, at more than 90% of the boundary positions, the boundary shapes of the touch area 200 and the touch panel 2 can be consistent.

[0094] In some exemplary embodiments, Figure 3 and Figure 4As shown, the touch peripheral area 201 includes four first touch peripheral areas and four second touch peripheral areas. The four first touch peripheral areas are respectively located at the four corners of the touch panel 2, and overlap with the display area 100 of the display panel. Each first touch peripheral area is connected to two adjacent second touch peripheral areas. Each first touch peripheral area partially overlaps with a plane area A1 around a notch and two adjacent curved areas. The overlapping area between the first touch peripheral area and the plane area A1 is located in the corner area of ​​the plane area A1. Each first touch peripheral area is located between the notch and the touch area 200. The four second touch peripheral areas correspond one-to-one to the four curved areas, and each second touch peripheral area partially overlaps with a curved area. However, this embodiment is not limited to this.

[0095] Figure 5 Schematic diagram of the driving architecture of the touch panel of at least one embodiment of the present disclosure. In some exemplary embodiments, the touch panel may be a mutual capacitance structure. The mutual capacitance structure is a mutual capacitance formed by the overlap of a first touch electrode and a second touch electrode, and position detection is performed using changes in mutual capacitance. The mutual capacitance touch panel is a multi-layer structure and has characteristics such as multi-touch. However, this embodiment is not limited to this. For example, the touch panel may be a self-capacitance structure, in which a touch electrode and a human body form a self-capacitance, and position detection is performed using changes in self-capacitance. The self-capacitance touch panel is a single-layer structure and has the characteristics of low power consumption and simple structure.

[0096] In some exemplary embodiments, Figure 5As shown, the touch area may include a plurality of first touch units 210 and a plurality of second touch units 220. The first touch unit 210 extends along the first direction D1, and the plurality of first touch units 210 are arranged in sequence along the second direction D2. The second touch unit 220 extends along the second direction D2, and the plurality of second touch units 220 are arranged in sequence along the first direction D1. The first direction D1 intersects with the second direction D2, for example, the first direction D1 is perpendicular to the second direction D2. Each first touch unit 210 includes a plurality of first touch electrodes 211 and a plurality of first connecting portions 212 arranged in sequence along the first direction D1, and the first touch electrodes 211 and the first connecting portions 212 are alternately arranged and connected in sequence. Each second touch unit 120 includes a plurality of second touch electrodes 221 arranged in sequence along the second direction D2, and the plurality of second touch electrodes 221 are arranged at intervals, and adjacent second touch electrodes 221 are connected to each other through second connecting portions 222. In some examples, the film layer where the second connection portion 222 is located is different from the film layer where the first touch electrode 211 and the second touch electrode 221 are located. The first touch electrodes 211 and the second touch electrodes 221 are alternately arranged in the third direction D3, and the third direction D3 intersects the first direction D1 and the second direction D2. However, this embodiment is not limited to this. Figure 5 In the figure, only six first touch control units and five second touch control units are used as examples for illustration, and each first touch control unit is only used with six first touch control electrodes, and each second touch control unit is used with seven second touch control electrodes for illustration. This embodiment does not limit the number of first touch control units, second touch control units, first touch control electrodes, and second touch control electrodes on the touch panel.

[0097] In some exemplary embodiments, a plurality of first touch electrodes 211, a plurality of second touch electrodes 221 and a plurality of first connecting portions 212 may be arranged in the same layer on the touch layer, and may be formed by the same patterning process. The first touch electrodes 211 and the first connecting portions 212 may be interconnected integral structures. The second connecting portions 222 may be arranged in the bridge layer, and the adjacent second touch electrodes 221 may be interconnected through vias. A touch insulating layer is arranged between the touch layer and the bridge layer. In other examples, a plurality of first touch electrodes 211, a plurality of second touch electrodes 221 and a plurality of second connecting portions 222 may be arranged in the same layer on the touch layer, and the second touch electrodes 221 and the second connecting portions 222 may be interconnected integral structures. The first connecting portion 212 may be arranged in the bridge layer, and the adjacent first touch electrodes 211 may be interconnected through vias. In some exemplary embodiments, the first touch electrodes may be sensing (Rx) electrodes, and the second touch electrodes may be driving (Tx) electrodes. Alternatively, the first touch control electrode may be a driving (Tx) electrode, and the second touch control electrode may be a sensing (Rx) electrode. However, this embodiment is not limited to this.

[0098] In some exemplary embodiments, Figure 5 As shown, the first touch electrode 211 and the second touch electrode 221 may have a rhombus shape, for example, a regular rhombus, a horizontally long rhombus, or a vertically long rhombus. However, this embodiment is not limited to this. In some examples, the first touch electrode 211 and the second touch electrode 221 may have any one or more of a triangle, a square, a trapezoid, a parallelogram, a pentagon, a hexagon, and other polygons.

[0099] In some exemplary embodiments, most of the first touch electrodes in the touch area are in a rhombus shape, and a small number of the first touch electrodes located on the edge may be in an isosceles triangle shape, or may be in a shape that matches the edge of the touch area. Most of the second touch electrodes are in a rhombus shape, and a small number of the second touch electrodes located on the edge may be in an isosceles triangle shape, or may be in a shape that matches the edge of the touch area. However, this embodiment is not limited to this.

[0100] In some exemplary embodiments, the first touch electrode 211 and the second touch electrode 221 may be in the form of a metal grid, the metal grid is formed by interweaving a plurality of metal wires, the metal grid includes a plurality of grid patterns, and the grid pattern is a polygon composed of a plurality of metal wires. In some examples, the grid pattern surrounded by the metal wires may be a regular shape or an irregular shape, and the edges of the grid pattern may be straight lines or curves, which are not limited in the embodiments of the present disclosure. In some examples, the line width of the metal wire may be less than or equal to 5 microns (μm). The first touch electrode and the second touch electrode in the form of a metal grid have the advantages of low resistance, small thickness and fast reaction speed. However, this embodiment is not limited to this. For example, the first touch electrode and the second touch electrode may be in the form of transparent conductive electrodes.

[0101] Figure 6 is a schematic diagram of the structure of a touch electrode in the form of a metal grid according to at least one embodiment of the present disclosure, Figure 5 A partial enlarged schematic diagram of the area S0 in FIG. In this example, the grid pattern is a diamond shape, and the edges of the grid pattern may be curves. Figure 6 As shown, in order to insulate the first touch electrode 211 and the second touch electrode 221 from each other, a plurality of cuts are provided on the metal grid, and the plurality of cuts disconnect the metal wires of the grid pattern, thereby forming an invalid connection area 301 between the first touch electrode 211 and the second touch electrode 221, thereby isolating the grid pattern of the first touch electrode 211 from the grid pattern of the second touch electrode 221. In some embodiments, the cut may be a straight line or a broken line formed by connecting some straight lines, thereby further solving the visualization problem at the cutout break.

[0102] In some exemplary embodiments, a cutout may be provided in each mesh pattern located in the invalid connection area 301, and the cutout cuts off the metal wire of the mesh pattern, so that each mesh pattern is divided into two parts, one part belongs to the first touch electrode 211, and the other part belongs to the second touch electrode 221, or one part belongs to the second touch electrode 221, and the other part belongs to the first touch electrode 211. In some examples, the first connection portion 212 and the first touch electrode 211 may be an integral structure, configured to achieve connection between two first touch electrodes 211. For example, the first connection portion 212 may be a mesh pattern connecting two first touch electrodes 211. The second connection portion 222 and the second touch electrode 221 are arranged in different layers, and are configured to achieve connection between two second touch electrodes 221. For example, the second connection portion 222 may include two arc-shaped connection lines arranged in parallel, one end of each arc-shaped connection line is connected to one second touch electrode 221, and the other end is connected to another second touch electrode 221.

[0103] In some exemplary embodiments, Figure 3 As shown, the touch peripheral area 201 is located around the touch area 200. The touch peripheral area 201 includes: four first touch peripheral areas and four second touch peripheral areas. The overlapping area of ​​each first touch peripheral area and the plane area A1 is located in the corner area of ​​the plane area A1. The four second touch peripheral areas are respectively located at the edges of the four curved areas away from the plane area A1. At least one first touch peripheral area is provided with a plurality of lead connecting lines. At least one second touch peripheral area is provided with a plurality of touch leads. The plurality of touch leads include at least one of the following: a plurality of first touch leads, a plurality of second touch leads. For example, the first touch lead is a sensing lead, and the second touch lead is a driving lead; or, the first touch lead is a driving lead, and the second touch lead is a sensing lead. However, this embodiment is not limited to this.

[0104] In some exemplary embodiments, Figure 5 As shown, the first touch unit 210 of each row is connected to a first touch lead 401, and the second touch unit 220 of each column is connected to a second touch lead 402. The first touch lead 401 and the second touch lead 402 can be connected to the touch chip on the flexible circuit board through a binding area located on one side of the touch area. For example, the first touch lead is a sensing lead, and the second touch lead is a driving lead. The touch chip can input a driving scanning signal to the second touch unit through the driving lead, and the first touch unit can output a sensing signal to the touch chip through the sensing lead. However, this embodiment is not limited to this. For example, the first touch lead can be a driving lead, and the second touch lead can be a sensing lead.

[0105] In some exemplary embodiments, Figure 5As shown, the first touch unit 210 in the upper half of the touch area is connected to the first touch lead 401 in the second touch peripheral area on the left side of the touch area, and the first touch unit 210 in the lower half of the touch area is connected to the first touch lead 401 in the second touch peripheral area on the right side of the touch area. The second touch unit 220 in the touch area is connected to the second touch lead 402 in the second touch peripheral area on the lower side of the touch area. In some embodiments, the first touch unit 210 in the upper half of the touch area can be connected to the first touch lead 401 in the second touch peripheral area on the right side of the touch area, and the first touch unit 210 in the lower half of the touch area can be connected to the first touch lead 401 in the second touch peripheral area on the left side of the touch area. The second touch unit 220 in the touch area is connected to the second touch lead 402 in the second touch peripheral area on the lower side of the touch area. The touch panel of this exemplary embodiment adopts a 1T1R driving mode. However, this embodiment is not limited to this. In some examples, for a touch area with an aspect ratio of 18:9 or 20:9, a 2T1R driving mode may be used, that is, the top and bottom ends (e.g., the second direction) provide driving signals simultaneously through driving leads, and the left or right side (e.g., the first direction) provides receiving signals through a single-sided sensing lead. In some examples, for a touch area with an aspect ratio of 8:9, such as a folding screen, a 2T2R driving mode may be used, that is, the top and bottom ends (e.g., the second direction) provide driving signals simultaneously through driving leads, and the left and right sides (e.g., the first direction) provide receiving signals simultaneously through sensing leads.

[0106] Figure 7 It is a partial schematic diagram of a touch panel according to at least one embodiment of the present disclosure. Figure 7 Shown Figure 4 A partial schematic diagram of the second curved area B2 in FIG. In some exemplary embodiments, at least one ground (GND) line 403 and at least one first shield (Guard) line 404 are further provided in the second touch peripheral area around the touch area. The first shield line 404 can, for example, be connected to a ground signal to achieve a shielding function. The ground line 403 can be used to achieve shielding and anti-static (ESD, Electro-Static discharge) functions. The first shield line 404 and the ground line 403 can be respectively connected to binding pins provided in the binding area to receive external signals. Figure 7As shown, the first shielding wires 404 on the left and right sides are disconnected, and the grounding wires 403 on the left and right sides are disconnected. The first shielding wires 404 on the left and right sides receive the same signal through the binding pins in the binding area, and the grounding wires 403 on the left and right sides receive the same signal through the binding pins in the binding area. The grounding wire 403 is located on the side of the first shielding wire 404 away from the touch area 200. However, this embodiment is not limited to this. In some exemplary embodiments, taking the touch panel adopting the 1T1R driving method as an example, as shown in FIG. Figures 2 to 4 As shown, a first shielding connection line, a grounding connection line and a plurality of lead connections are provided in the first touch peripheral area around the first notch C1. Among them, the first shielding connection line is configured to connect the first shielding line in the second touch peripheral area located on the upper and left sides of the plane area A1, the grounding connection line is configured to connect the grounding line in the second touch peripheral area located on the upper and left sides of the plane area A1, and at least one of the plurality of lead connection lines is configured to connect the first touch unit located in the upper left corner area of ​​the plane area A1 and the first touch lead in the second touch peripheral area on the left side of the plane area A1, or to connect the first touch unit in the second curved area B2 and the first touch lead in the second touch peripheral area on the left side of the plane area A1. In the first touch peripheral area around the first notch C1, the first shielding connection line can be located on the side of the grounding connection line close to the touch area, and the plurality of lead connection lines are located on the side of the first shielding connection line close to the touch area. However, this embodiment is not limited to this.

[0107] In some examples, such as Figures 2 to 4 As shown, a first shielding connection line and a ground connection line are provided in the first touch peripheral area around the second notch C2. The first shielding connection line in the second notch C2 peripheral area is configured to connect the first shielding line in the second touch peripheral area located on the upper side and right side of the plane area A1, and the ground connection line is configured to connect the grounding line in the second touch peripheral area located on the upper side and right side of the plane area A1. In the first touch peripheral area around the second notch C2, the first shielding connection line can be located on the side of the ground connection line close to the touch area. However, this embodiment is not limited to this.

[0108] In some examples, such as Figures 2 to 4As shown, a first shielding connection line, a second shielding connection line, a ground connection line and a plurality of lead connection lines are arranged in the first touch peripheral area around the fourth notch C4. Among them, the first shielding connection line in the peripheral area around the fourth notch C4 is configured to connect the first shielding line in the second touch peripheral area on the left and lower side of the plane area A1, the second shielding connection line is configured to connect the second shielding line in the second touch peripheral area on the left and lower side of the plane area A1, and the ground connection line is configured to connect the ground line in the second touch peripheral area on the left and lower side of the plane area A1. At least one of the plurality of lead connection lines in the peripheral area around the fourth notch C4 is configured to connect the first touch lead line in the second touch peripheral area on the left and lower side of the plane area A1, or to connect the second touch unit in the lower left corner area of ​​the plane area A1 and the second touch lead line in the second touch peripheral area on the lower side of the plane area A1. In the first touch peripheral area around the fourth notch C4, the second shielding connection line may be located between the lead connection line connected to the first touch lead and the lead connection line connected to the second touch lead, the first shielding connection line may be located between the ground connection line and the lead connection line, and the ground connection line may be located on a side of the first shielding connection line away from the touch area. However, this embodiment is not limited to this.

[0109] In some examples, such as Figures 2 to 4 As shown, a first shielding connection line, a second shielding connection line, a ground connection line and a plurality of lead connection lines are arranged in the first touch peripheral area located around the third notch C3. Among them, the first shielding connection line in the peripheral area of ​​the third notch C3 is configured to connect the first shielding line in the second touch peripheral area located on the right and lower side of the plane area A1, the second shielding connection line is configured to connect the second shielding line in the second touch peripheral area located on the right and lower side of the plane area A1, and the ground connection line is configured to connect the ground line located on the right and lower side of the plane area A1. At least one of the plurality of lead connection lines in the peripheral area of ​​the third notch C3 is configured to connect the first touch lead line in the second touch peripheral area located on the right and lower side of the plane area A1, or to connect the first touch unit in the lower right corner area of ​​the plane area A1 and the first touch lead line in the second touch peripheral area below the plane area A1, or to connect the second touch unit in the lower right corner area of ​​the plane area A1 and the second touch lead line in the second touch peripheral area below the plane area A1. In the first touch peripheral area around the third notch C3, the second shielding connection line is located between the lead connection line connected to the first touch lead and the lead connection line connected to the second touch lead, the first shielding connection line is located between the lead connection line and the ground connection line, and the ground connection line can be located on a side of the first shielding connection line away from the touch area. However, this embodiment is not limited to this.

[0110] The following takes the driving mode of the touch panel as 1T1R as an example to illustrate the routing of the four corners of the touch panel. Figure 8 and Fig.10 Both Figure 3 A partial enlarged schematic diagram of the middle area S1, that is, Figure 8 and Fig.10 All of the diagrams shown are partial enlarged schematic diagrams of the lower left corner of the touch panel 2 . Fig. 9 for Figure 8 Schematic diagram of the local section along the PP direction. Fig.11 for Fig.10 A partial enlarged schematic diagram of the middle area P1. Fig.12 for Fig.11 Schematic diagram of the local section along the QQ direction. Fig.13 for Fig.10 A partial enlarged schematic diagram of the middle area P2. Fig.14 for Figure 3 A partial enlarged schematic diagram of the middle area S2, that is, Fig.14 It is a partial enlarged schematic diagram of the lower right corner of the touch panel 2. Fig.15 for Figure 3 A partial enlarged schematic diagram of the middle area S3, namely Fig.15 It is a partial enlarged schematic diagram of the upper right corner of the touch panel 2. Fig.16 for Fig.15 A partial enlarged schematic diagram of the middle area P3. Fig.17 for Figure 3 A partial enlarged schematic diagram of the middle area S4, namely Fig.17 It is a partial enlarged schematic diagram of the upper left corner of the touch panel 2.

[0111] exist Figure 8 , Fig.10 , Fig.14 , Fig.15 and Fig.17 In FIG. 1 , line L1 represents the boundary of the display area 100 of the display panel 1 , line L2 represents the boundary of the touch panel 2 , and line L3 represents the boundary of the touch area 200 of the touch panel 2 .

[0112] In some exemplary embodiments, Figure 8 and Fig.10As shown, the area E11 between the line L1 and the line L2 corresponds to the location of the fourth notch C4 of the touch panel 2. On the side of the area E11 close to the touch area 200, the area surrounded by the lines L1, L2 and L3 is the first touch peripheral area E12 at the lower right corner of the touch panel 2. On the side of the first touch peripheral area E12 away from the touch area 200, the area surrounded by the lines L1, L2 and L3 is the second touch peripheral area E51 on the left side of the touch panel 2 and the second touch peripheral area E52 on the lower side of the touch panel 2. Among them, the first touch peripheral area E12 overlaps with the display area 100, and a light-transmitting first wiring layer 50 is set in the first touch peripheral area E12 to avoid affecting the display effect of the display area 100. The second touch peripheral area E51 and the second touch peripheral area E52 do not overlap with the display area 100, and a non-transparent second routing layer 40 may be provided in the second touch peripheral area E51 and the second touch peripheral area E52. In some examples, the connection position of the transparent first routing layer 50 and the non-transparent second routing layer 40 may be located at the boundary of the second touch peripheral area E51 (or the second touch peripheral area E52) close to the first touch peripheral area E12 to ensure that the first touch peripheral area E12 is a transparent visible area. For example, the transparent first routing layer 50 may extend from the first touch peripheral area E12 to the second touch peripheral area E51, and be connected to the non-transparent second routing layer 40 in the second touch peripheral area E51; the first routing layer 50 may extend from the first touch peripheral area E12 to the second touch peripheral area E52, and be connected to the non-transparent second routing layer 40 in the second touch peripheral area E52.

[0113] In some exemplary embodiments, Figure 8As shown, the first touch peripheral area E12 may include: a first sub-area F1, a second sub-area F2, a third sub-area F3, a fourth sub-area F4 and a fifth sub-area F5 connected in sequence. The routing lines in the first sub-area F1 and the fifth sub-area F5 may be straight line segments, and the routing lines in the second sub-area F2 and the fourth sub-area F4 may be a combination of curved line segments, straight line segments or a combination of curved line segments and straight line segments. The routing line in the third sub-area F3 may be an arc segment. In some examples, the edge of the notch located at the periphery of the first touch peripheral area E12 is formed by a first straight line segment, a first transition segment, an arc segment, a second transition segment and a second straight line segment connected in sequence. The first straight line segment is the edge of the first sub-area F1, the first transition segment is the edge of the second sub-area F2, the arc segment is the edge of the third sub-area F3, the second transition segment is the edge of the fourth sub-area F4, and the second straight line segment is the edge of the fifth sub-area F5. In some examples, the first transition segment connects the first straight line segment and the arc segment, and the first transition segment is an arc line, and the corresponding radius is about 0.5mm to 0.9mm, for example, about 0.7mm. The second transition section connects the second direct line and the arc section, the second transition section is an arc line, and the corresponding radius is about 0.5mm to 0.9mm, for example, about 0.7mm. The arc section is connected between the first transition section and the second transition section, and the corresponding radius is about 3mm to 4mm, for example, about 3.6mm. However, this embodiment is not limited to this.

[0114] like Figure 3 As shown, any bending region has a boundary line along which the plane region bends, which is defined as a bending line.

[0115] Combination Figure 8 As shown, in some embodiments, the extension line of the curved line has any intersection with the edge of the notch. In some embodiments, the extension line of the curved line has an intersection with the straight line segment of the notch. In some embodiments, the extension line of the curved line has an intersection with the arc segment of the notch. In some embodiments, the extension line of the curved line has an intersection with the transition segment of the notch. In some embodiments, the intersection point of the extension line of the curved line with the notch at the point where the straight line segment changes can be the change point of the straight line segment and the arc segment, that is, the connection point, or the change point of the straight line segment and the transition segment, that is, the connection point. In some embodiments, the curved line can be a straight line parallel to the side where the curved side display panel is located, or it can have a certain angle. In some embodiments, the intersection angle of the extension lines of adjacent curved lines can be 90 degrees, or it can be any other angle. In some embodiments, the intersection point of the extension lines of adjacent curved lines is located in the first touch peripheral area E12.

[0116] In some embodiments, the extension of the bend line passes through at least a portion of the first touch peripheral area E12. In some embodiments, the extension of the bend line passes through the first sub-area F1 of the first touch peripheral area E12. In some embodiments, the extension of the bend line passes through the second sub-area F2 of the first touch peripheral area E12. In some embodiments, the extension of the bend line passes through the third sub-area F3 of the first touch peripheral area E12. In some embodiments, the extension of the bend line passes through the fourth sub-area F4 of the first touch peripheral area E12. In some embodiments, the extension of the bend line passes through the fifth sub-area F5 of the first touch peripheral area E12.

[0117] In some embodiments, the extension line of the bending line intersects at least a portion of the routing lines of the first routing layer 50 .

[0118] In some exemplary embodiments, Fig.10 As shown, the shape of the touch electrodes at the edge of the touch area 200 may match the edge shape of the touch area 200 , for example, the touch electrodes at the edge may have arc edges, or may be polygonal. However, this embodiment is not limited to this.

[0119] In some exemplary embodiments, Figures 10 to 13As shown, the first routing layer 50 in the first touch peripheral area E12 includes: a plurality of first lead connection lines 501, a plurality of second lead connection lines 502, at least one ground connection line 503, at least one first shield connection line 504, and at least one second shield connection line 505. The second routing layer 40 in the second touch peripheral area E51 includes: a plurality of first touch leads 401, at least one ground line 403, at least one first shield line 404, and at least one second shield line 405. The second routing layer 40 in the second touch peripheral area E52 includes: a plurality of first touch leads 401, a plurality of second touch leads 402, at least one ground line 403, at least one first shield line 404, and at least one second shield line 405. In some examples, the ground line 403, the first shield line 404, and the second shield line 405 in the second touch peripheral area E52 can be respectively extended to the binding pins in the connection binding area to receive external signals, for example, both receive ground signals. In some examples, the grounding line 403 may extend from the second touch peripheral area E52 through the first touch peripheral area E12, the second touch peripheral area E51 and the first touch peripheral area E42 to the second touch peripheral area E54, and from the second touch peripheral area E52 through the first touch peripheral area E22, the second touch peripheral area E53 and the first touch peripheral area E32 to the second touch peripheral area E54 by overlapping the grounding connection line 503. The first shielding line 404 may extend from the second touch peripheral area E52 through the first touch peripheral area E12, the second touch peripheral area E51 and the first touch peripheral area E42 to the second touch peripheral area E54, and from the second touch peripheral area E52 through the first touch peripheral area E22, the second touch peripheral area E53 and the first touch peripheral area E32 to the second touch peripheral area E54 by overlapping the first shielding connection line 504. The second shielding line 405 may extend from the second touch peripheral area E52 through the first touch peripheral area E12 to the second touch peripheral area E51, and from the second touch peripheral area E52 through the first touch peripheral area E22 to the second touch peripheral area E53 through the second shielding connection line 505. However, this embodiment is not limited thereto.

[0120] In some exemplary embodiments, Figures 10 to 13As shown, a plurality of first lead connection lines 501 are configured to connect the second touch unit (for example, including the second touch unit in the first curved area B1 and the second touch unit in the corner area A14 of the plane area A1) at the lower left corner of the touch panel 2 and the second touch lead 402 in the second touch peripheral area E52 below the plane area A1. A plurality of second lead connection lines 502 are configured to connect the first touch lead 401 in the second touch peripheral area E51 on the left side of the plane area A1 and the first touch lead 401 in the second touch peripheral area E52 below the plane area A1. A ground connection line 503 is configured to connect the second touch peripheral area E51 on the left side of the plane area A1 and the ground line 403 in the second touch peripheral area E52 below the plane area A1. A first shield connection line 504 is configured to connect the second touch peripheral area E51 on the left side of the plane area A1 and the first shield line 404 in the second touch peripheral area E52 below the plane area A1. The second shielding connection line 505 is configured to connect the second touch peripheral area E51 on the left side of the plane area A1 and the second shielding line 405 in the second touch peripheral area E52 below the plane area A1. A portion of the second touch lead 402 in the second touch peripheral area E52 can be connected to the second touch electrode 221 in the fourth bending area B4. Fig.10 In the figure, only a number of first lead connection lines 501 are shown, a plurality of second lead connection lines 502 are shown as a whole, and a plurality of first touch lead lines, a plurality of second touch lead lines, a ground line, a first shielding line and a second shielding line in the second touch peripheral area E52 are shown as a whole. However, this embodiment is not limited to this.

[0121] In this exemplary embodiment, by providing a second shielding line between the first touch signal line and the second touch signal line, and by providing a second shielding connection line between the first lead connection line and the second lead connection line, interference between adjacent touch signal lines and lead connection lines can be shielded. By providing a first shielding line on the side of the touch signal line away from the touch area, and by providing a first shielding connection line on the side of the lead connection line away from the touch area, external signal interference can be shielded.

[0122] In some exemplary embodiments, Fig.10As shown, the extension direction of the ground connection line 503, the first shielding connection line 504, the second shielding connection line 505, the plurality of first lead connection lines 501 and the plurality of second lead connection lines 502 in the first touch peripheral area E12 matches the boundary shape (e.g., line L3) of the touch area 200 of the touch panel 2. In some examples, at least one second lead connection line 502 can be formed by connecting a first straight line segment, a first transition line segment, a curved line segment, a second transition line segment and a second straight line segment, the first straight line segment is parallel to the first direction D1, and the second straight line segment is parallel to the second direction D2. The first straight line segment of a second lead connection line 502 is connected to the first touch lead 401 in the second touch peripheral area E51 on the left side of the touch area 200, and the second straight line segment is connected to the first touch lead 401 in the second touch peripheral area E52 on the lower side of the touch area 200. However, this embodiment is not limited to this. For example, at least one first lead connection line or a second lead connection line can be a broken line formed by connecting a plurality of straight line segments.

[0123] In some exemplary embodiments, Fig.10 As shown, in the first touch peripheral area E12, a plurality of first lead connection lines 501, a second shielding connection line 505, a plurality of second lead connection lines 502, a first shielding connection line 504 and a ground connection line 503 are arranged in sequence along a direction away from the touch area 200. The spacing between adjacent first lead connection lines 501 can be the same, and the spacing between adjacent second lead connection lines 502 can be the same. A second shielding connection line 505 is arranged between the first lead connection line 501 and the second lead connection line 502. There is a first spacing between the second shielding connection line 505 and the adjacent second lead connection line 502, and there is a second spacing between the second lead connection line 502 and the adjacent first shielding connection line 504. The first spacing can be greater than the spacing between adjacent first lead connection lines 501, and can also be greater than the spacing between adjacent second lead connection lines 502. The second spacing can be greater than the spacing between adjacent first lead connection lines 501, and can also be greater than the spacing between adjacent second lead connection lines 502. In some examples, the first spacing can be greater than or equal to the second spacing. However, this embodiment is not limited to this.

[0124] In some exemplary embodiments, Figures 10 to 13 As shown, the width of the ground connection line 503 can be greater than the width of the first lead connection line 501, and also greater than the width of the second lead connection line 502. The width of the second shielding connection line 505 can be greater than the width of the ground connection line 503. The width of the first shielding connection line 504 can be less than the width of the ground connection line 503. However, this embodiment is not limited to this.

[0125] In some exemplary embodiments, Fig.14As shown, the area E21 between the line L1 and the line L2 corresponds to the location of the third notch C3 of the touch panel 2. On the side of the area E21 close to the touch area 200, the area surrounded by the lines L1, L2 and L3 is the first touch peripheral area E22 at the lower right corner of the touch panel 2. On the side of the first touch peripheral area E22 away from the touch area 200, the area surrounded by the lines L1, L2 and L3 is the second touch peripheral area E53 on the right side of the touch panel 2 and the second touch peripheral area E52 on the lower side. Among them, the first touch peripheral area E22 overlaps with the display area 100, and a light-transmitting first wiring layer 50 is provided in the first touch peripheral area E22. The first wiring layer 50 includes: a plurality of first lead connection lines 501, a plurality of second lead connection lines 502, at least one ground connection line 503, at least one first shielding connection line 504 and at least one second shielding connection line 505. The non-light-transmissive second routing layer 40 in the second touch peripheral area E53 includes: a plurality of first touch lead wires 401, at least one ground wire 403, at least one first shield wire 404, and at least one second shield wire 405. The second routing layer 40 in the second touch peripheral area E52 includes: a plurality of first touch lead wires 401, a plurality of second touch lead wires 402, at least one ground wire 403, at least one first shield wire 404, and at least one second shield wire 405. In the first touch peripheral area E22, the second shielding connection wire 505 is located between the plurality of first lead connection wires 501 and the plurality of second lead connection wires 502, the first shielding connection wire 504 is located on a side of the plurality of second lead connection wires 502 away from the touch area 200, and the ground connection wire 503 is located on a side of the first shielding connection wire 504 away from the touch area 200.

[0126] In some exemplary embodiments, Fig.14As shown, the plurality of first lead connection lines 501 in the first touch peripheral area E22 are configured to connect the second touch unit at the lower right corner of the touch panel 2 (for example, including the second touch unit in the third curved area B3 and the second touch unit in the corner area A13 of the plane area A1) and the second touch lead 402 in the second touch peripheral area E52 below the plane area A1. The plurality of second lead connection lines 502 in the first touch peripheral area E22 are configured to connect the first touch lead 401 in the second touch peripheral area E53 on the right side of the plane area A1 and the first touch lead 401 in the second touch peripheral area E52 below the plane area A1, as well as the first touch unit at the lower right corner of the touch panel 2 (for example, including the first touch unit in the fourth curved area B4 and the first touch unit in the corner area A13 of the plane area A1) and the first touch lead 401 in the second touch peripheral area E52 below the plane area A1. The ground connection line 503 is configured to connect the second touch peripheral area E53 on the right side of the plane area A1 and the ground line 403 in the second touch peripheral area E52 below the plane area A1. The first shield connection line 504 is configured to connect the second touch peripheral area E53 on the right side of the plane area A1 and the first shield line 404 in the second touch peripheral area E52 below the plane area A1. The second shield connection line 505 is configured to connect the second touch peripheral area E53 on the right side of the plane area A1 and the second shield line 405 in the second touch peripheral area E52 below the plane area A1. A portion of the second touch lead 402 in the second touch peripheral area E52 can be connected to the second touch electrode 221 in the fourth bending area B4. Fig.14 In the figure, only a number of first lead connection lines 501 are shown, a plurality of second lead connection lines 502 are shown as a whole, and a plurality of first touch lead lines, a plurality of second touch lead lines, a ground line, a first shielding line and a second shielding line in the second touch peripheral area E52 are shown as a whole. However, this embodiment is not limited to this.

[0127] In some exemplary embodiments, Fig.14As shown, the second lead connection line 502 in the first touch peripheral area E22 can be connected to the first touch unit at the lower right corner of the touch panel 2 through at least one first overlap line 601. In some examples, the first wiring layer is arranged in the same layer as the touch layer, and the bridge layer is located on the side of the first wiring layer close to the touch substrate. The first overlap line 601 can be arranged in the same layer as the bridge layer, or located on the side of the touch layer away from the touch substrate. For example, one end of the first overlap bridge 601 can be connected to the first touch electrode of the first touch unit at the lower right corner of the touch panel 2 through a via, and the other end can be connected to a second lead connection line 502 through a via. However, this embodiment is not limited to this. In this exemplary embodiment, the first overlap line 601 can cross the first lead connection line 501 to achieve electrical connection between the second lead connection line 502 and the first touch unit. In some examples, when the first touch lead in the lower half of the touch area is led out from the left side, a first bonding wire can be set at the lower left corner of the touch panel to electrically connect the first touch unit and the second lead connection wire.

[0128] In some exemplary embodiments, Fig.15 As shown, the area E31 between the line L1 and the line L2 corresponds to the location of the second notch C2 of the touch panel 2. On the side of the area E31 close to the touch area 200, the area surrounded by the lines L1, L2 and L3 is the first touch peripheral area E32 at the upper right corner of the touch panel 2. On the side of the first touch peripheral area E32 away from the touch area 200, the area surrounded by the lines L1, L2 and L3 is the second touch peripheral area E53 on the right side of the touch panel 2 and the second touch peripheral area E54 on the upper side. Among them, the first touch peripheral area E32 overlaps with the display area 100, and a transparent first wiring layer 50 is provided in the first touch peripheral area E32. The first wiring layer 50 includes: at least one ground connection line 503, at least one first shielding connection line 504. The non-transparent second wiring layer 40 in the second touch peripheral area E53 includes: at least one ground line 403, at least one first shielding line 404. The second wiring layer 40 in the second touch peripheral area E54 includes: at least one first shielding line 404 and at least one grounding line 403. The first shielding line 404 is located on the side of the grounding line 403 close to the touch area. The first shielding connection line 504 is located on the side of the grounding connection line 503 close to the touch area.

[0129] In some exemplary embodiments, Fig.15As shown, the first shielding connection line 504 is configured to connect the first shielding line 404 in the second touch peripheral area E54 on the upper side of the plane area A1 and the second touch peripheral area E53 on the right side of the plane area A1. The grounding connection line 503 is configured to connect the second touch peripheral area E54 on the upper side of the plane area A1 and the grounding line 403 in the second touch peripheral area E53 on the right side of the plane area A1. However, this embodiment is not limited to this.

[0130] In some exemplary embodiments, Fig.16 As shown, the ground connection line 503 in the first touch peripheral area E32 can be connected to the ground line 403 in the adjacent second touch peripheral area through multiple vias, and the first shielding connection line 504 can be connected to the first shielding line 404 in the adjacent second touch peripheral area through multiple vias. However, this embodiment is not limited to this.

[0131] In some exemplary embodiments, Fig.17 As shown, the area E41 between the line L1 and the line L2 corresponds to the location of the first notch C1 of the touch panel 2. On the side of the area E41 close to the touch area 200, the area surrounded by the lines L1, L2 and L3 is the first touch peripheral area E42 at the upper left corner of the touch panel 2. On the side of the first touch peripheral area E42 away from the touch area 200, the area surrounded by the lines L1, L2 and L3 is the second touch peripheral area E51 on the left side of the touch panel 2 and the second touch peripheral area E54 on the upper side. Among them, the first touch peripheral area E42 overlaps with the display area 100, and a light-transmitting first wiring layer 50 is provided in the first touch peripheral area E42. The first wiring layer 50 includes: at least one ground connection line 503, at least one first shielding connection line 504, and a plurality of second lead connection lines 502. The first shielding connection line 504 is located on a side of the plurality of second lead connection lines 502 away from the touch area, and the ground connection line 503 is located on a side of the first shielding connection line 504 away from the touch area. The second non-light-transmissive wiring layer 40 in the second touch peripheral area E51 includes: a plurality of first touch lead lines 401, at least one ground line 403, and at least one first shielding line 404. The second wiring layer 40 in the second touch peripheral area E54 includes: at least one ground line 403, and at least one first shielding line 404.

[0132] In some exemplary embodiments, Fig.17As shown, the first shielding connection line 504 in the first touch peripheral area E42 is configured to connect the first shielding line 404 in the second touch peripheral area E54 on the upper side of the plane area A1 and the second touch peripheral area E51 on the left side of the plane area A1. The grounding connection line 503 is configured to connect the second touch peripheral area E54 on the upper side of the plane area A1 and the grounding line 403 in the second touch peripheral area E51 on the left side of the plane area A1. The plurality of second lead connection lines 502 in the first touch peripheral area E42 are configured to connect the first touch unit (for example, including the first touch unit in the second curved area B2 and the first touch unit in the corner area A11 of the plane area A1) at the upper left corner of the touch panel 2 and the first touch lead 401 in the second touch peripheral area E51 on the left side of the plane area A1. A portion of the first touch lead 401 in the second touch peripheral area E51 can be connected to the first touch electrode 211 in the first curved area B1. Fig.17 Only a plurality of second lead connection lines 502 in the first touch peripheral area E42 are shown. The connection method between the first wiring layer 50 in the first touch peripheral area E42 and the second wiring layer 40 in the adjacent second touch peripheral area can refer to the connection method between the first wiring layer in the first touch peripheral area E32 and the second wiring layer in the adjacent second touch peripheral area, so it will not be repeated here.

[0133] In some exemplary embodiments, when the touch panel adopts a 2T1R driving mode, the first touch lead can be led out from the upper side and the lower side of the touch area, and the second touch lead can be led out from the left side and the right side. For example, the second touch peripheral area on the upper side of the plane area includes a plurality of second touch leads, the second touch peripheral area on the left side includes a plurality of first touch leads and a plurality of second touch leads, the second touch peripheral area on the right side includes a plurality of first touch leads and a plurality of second touch leads, and the second touch peripheral area on the lower side includes a plurality of first touch leads and a plurality of second touch leads. The second touch peripheral areas on the four sides of the plane area all include a ground line, a first shielding line, and a second shielding line. The first touch peripheral area in the upper left corner of the touch panel may include: a lead connection line connecting the second touch lead in the second touch peripheral area on the upper side and the left side, a lead connection connecting the second touch unit at the upper left corner of the touch panel (for example, including the first touch unit in the first bending area B1 and the second touch unit in the first notch C1 of the plane area A1) and the second touch lead in the second touch peripheral area on the left side, a grounding connection line connecting the ground wire in the second touch peripheral area on the upper side and the left side, and a shielding connection line (for example, including: a first shielding connection line connecting the first shielding line in the second touch peripheral area on the upper side and the left side, and a second shielding connection line connecting the second shielding line in the second touch peripheral area on the upper side and the left side). The first touch peripheral area in the upper right corner of the touch panel may include: a lead connection line connecting the second touch lead in the second touch peripheral area on the upper side and the right side, a lead connection connecting the second touch unit at the upper right corner of the touch panel (for example, including the second touch unit in the third bending area B3 and the second touch unit in the second notch C2 of the plane area A1) and the second touch lead in the second touch peripheral area on the right side, a lead connection line connecting the first touch unit at the upper right corner of the touch panel (for example, including the first touch unit in the second bending area B2 and the first touch unit in the second notch C2 of the plane area A1) and the first touch lead in the second touch peripheral area on the right side, a ground connection line, and a shield connection line. The routing in the first touch peripheral area at the lower left corner and the lower right corner of the touch panel further includes a lead connection line connecting the first touch lead in two adjacent second touch peripheral areas on the basis of the aforementioned embodiments. However, the present embodiment is not limited to this.

[0134] In some exemplary embodiments, Fig.11As shown, at least one second lead connection line 502 includes: an extension portion 5021 and a connection end portion 5020 connected to both ends of the extension portion 5021. The width of the connection end portion 5020 is greater than the width of the extension portion 5021. The connection end portion 5020 of a second lead connection line 502 is connected to the first touch lead 401 of the second touch peripheral area E51 through at least one first via K1. The connection ends 5020 of two adjacent second lead connection lines 502 are arranged in a staggered manner. By arranging the connection ends of a plurality of adjacent second lead connection lines in a staggered manner, not only can the effective connection between the second lead connection line and the first touch lead be ensured, the transmission performance is improved, but also the spacing between adjacent lead connection lines can be reduced. In some examples, the connection method of the first lead connection line 501 in the first touch peripheral area E12 and the second touch lead in the second touch peripheral area E52 is similar to the connection method of the second lead connection line 502 and the first touch lead in the second touch peripheral area E51, so it is not repeated here.

[0135] In some exemplary embodiments, Figures 10 to 13 As shown, one end of the ground connection line 503 can be connected to the ground line 403 in the second touch peripheral area E51 through at least one second via K2, and the other end can be connected to the ground line 403 in the second touch peripheral area E52 through multiple second vias. For example, one end of the ground connection line 503 can be connected to the ground line 403 in the second touch peripheral area E52 through five second vias, and the other end can be connected to the ground line 403 in the second touch peripheral area E51 through two second vias. One end of the first shielding connection line 504 can be connected to the first shielding line 404 in the second touch peripheral area E51 through at least one fourth via K4, and the other end can be connected to the first shielding line 404 in the second touch peripheral area E52 through at least one fourth via. One end of the second shielding connection line 505 may be connected to the second shielding line 405 in the second touch peripheral area E51 through a plurality of third vias K3 (for example, four third vias), and the other end may be connected to the second shielding line 405 in the second touch peripheral area E52 through a plurality of third vias (for example, five third vias). However, this embodiment is not limited thereto.

[0136] In the present disclosure, width refers to the characteristic dimension of a trace in a direction perpendicular to the extension direction. Length refers to the characteristic dimension of a trace in the extension direction. Thickness refers to the vertical distance between the surface of the trace away from the substrate and the surface close to the substrate.

[0137] Fig. 9 for Figure 8 A schematic diagram of a local cross section along the PP direction in FIG. In some exemplary embodiments, as Fig. 9As shown, in a plane perpendicular to the touch panel, the touch area 200 includes: a touch substrate 500, a bridge layer, a touch insulating layer 51, a touch layer and a protective layer 52 sequentially arranged on the touch substrate 500. The bridge layer includes, for example, a second connecting portion 222, and the touch layer includes, for example, a first touch electrode 211, a first connecting portion 212 and a second touch electrode 221. The first touch peripheral area E12 includes: a touch substrate 500, a touch insulating layer 51 sequentially arranged on the touch substrate 500, a light-transmissive first routing layer and a protective layer 52. The first routing layer includes: a plurality of first lead connection wires 501, a plurality of second lead connection wires 502, a ground connection wire 503, a first shielding connection wire 504, and a second shielding connection wire 505. In some examples, the first lead connection wire 501 can be directly connected to the second touch electrode 221, or can be connected to the second touch electrode 221 through a bridge layer. However, this embodiment is not limited to this.

[0138] In some examples, the bridging layer may be made of a metal material, for example, any one or more of silver (Ag), copper (Cu), aluminum (Al), titanium (Ti) and molybdenum (Mo), or alloy materials of the above metals. The touch layer and the first wiring layer may be made of a first conductive material having a transmittance greater than about 90%. For example, the first conductive material may be a metal material having a transmittance greater than about 90%, a transparent conductive material such as ITO, IZO, etc. In this exemplary embodiment, the first wiring layer of the first touch peripheral area and the touch layer of the touch area are prepared simultaneously and formed by the same patterning process, which can simplify the preparation process and ensure the visual effect of the first touch peripheral area.

[0139] Fig.12 for Fig.11 A schematic diagram of a partial cross section along the QQ direction in FIG. In some exemplary embodiments, as Fig.11 and Fig.12 As shown, the grounding wire 403, the first touch lead 401, the first shielding wire 404 and the second shielding wire 402 of the second touch peripheral area E52 and E51 are of the same layer structure, and are located on the side of the first wiring layer 50 close to the touch substrate 500. The second lead connection wire 502 can be connected to the first touch lead 401 through the first via K1 on the touch insulating layer 51. The grounding connection wire 503 is connected to the grounding wire 403 through multiple second vias K2 on the touch insulating layer 51. The first shielding connection wire 504 is connected to the first shielding wire 404 through the fourth via K4 on the touch insulating layer 51. The second shielding connection wire 505 is connected to the second shielding wire 405 through multiple third vias K3 on the touch insulating layer 51. In this example, the touch lead and the bridge layer are of the same layer structure, and can be prepared by the same patterning process. However, this embodiment is not limited to this.

[0140] The structure of the touch panel of the embodiment of the present disclosure is explained below by taking the example of the preparation process of the touch panel as an example. The "patterning process" mentioned in the present disclosure includes processes such as depositing a film layer, coating a photoresist, mask exposure, development, etching and stripping the photoresist. Deposition can be carried out by any one or more selected from sputtering, evaporation and chemical vapor deposition, coating can be carried out by any one or more selected from spraying and spin coating, and etching can be carried out by any one or more selected from dry etching and wet etching. "Thin film" refers to a thin film made of a certain material on a substrate using a deposition or coating process. If the "thin film" does not require a patterning process during the entire production process, the "thin film" can also be called a "layer". When the "thin film" still requires a patterning process during the entire production process, it is called a "thin film" before the patterning process and a "layer" after the patterning process. The "layer" after the patterning process contains at least one "pattern".

[0141] The term "A and B are arranged in the same layer" in the present disclosure means that A and B are formed simultaneously by the same patterning process. "Same layer" does not always mean that the thickness of the layer or the height of the layer is the same in the cross-sectional view. "The orthographic projection of A includes the orthographic projection of B" means that the orthographic projection of B falls within the range of the orthographic projection of A, or the orthographic projection of A covers the orthographic projection of B.

[0142] In some exemplary embodiments, the process of preparing the touch panel of the exemplary embodiment includes the following steps.

[0143] (1) Provide a touch substrate.

[0144] In some exemplary embodiments, the touch substrate may be made of a flexible material, such as cycloolefin polymer (COP), polyimide (PI), polyethylene terephthalate (PET), etc. However, this embodiment is not limited thereto.

[0145] (2) Prepare a bridge layer and a second wiring layer pattern on the touch substrate.

[0146] In some exemplary embodiments, a second conductive film is deposited on the touch substrate 500, and the second conductive film is patterned by a patterning process to form a bridge layer and a second wiring layer pattern disposed on the touch substrate 500, such as Figures 8 to 13The bridge layer pattern is formed in the touch area 200, and at least includes the second connection portion 222. The second routing layer pattern is formed in the second touch peripheral area, and at least includes a plurality of touch leads (for example, including: a plurality of first touch leads 401 and a plurality of second touch leads 402), a second shielding line located between the first touch leads and the second touch leads, a first shielding line 404 located on a side of the plurality of touch leads away from the touch area 200, and a grounding line 403.

[0147] In some examples, the second conductive film can be made of metal materials, such as any one or more of silver (Ag), copper (Cu), aluminum (Al), titanium (Ti) and molybdenum (Mo), or alloy materials of the above metals, such as aluminum-neodymium alloy (AlNd) or molybdenum-niobium alloy (MoNb), and can be a single-layer structure, or a multi-layer composite structure, such as Ti / Al / Ti, etc.

[0148] (3) Preparing a touch insulating layer on the touch substrate.

[0149] In some exemplary embodiments, a touch insulating material is coated on the touch substrate having the aforementioned structure to form a touch insulating layer 51 covering the bridge layer, and a plurality of vias are formed on the touch insulating layer 51 by a patterning process, for example, including: a plurality of first vias K1, a plurality of second vias K2, a plurality of third vias K3, a fourth via K4, and a plurality of fifth vias, such as Figures 8 to 13 As shown. A plurality of first vias K1, a plurality of second vias K2, a plurality of third vias K3 and a fourth via K4 are formed in the second touch peripheral area near the boundary of the first touch peripheral area E12. The touch insulating layer 51 in the first via K1 is etched away to expose the surface of the first touch lead 401 or the second touch lead 402, and the touch insulating layer 51 in the second via K2 is etched away to expose the surface of the grounding line 403. The touch insulating layer 51 in the third via K3 is etched away to expose the surface of the second shielding line 405. The touch insulating layer 51 in the fourth via K4 is etched away to expose the surface of the first shielding line 404. A plurality of fifth vias are formed in the touch area 200, and the touch insulating layer 51 in the fifth via is etched away to expose the surface of the bridge layer.

[0150] In some examples, the touch insulating material may be made of organic materials such as polyimide, acrylic, or polyethylene terephthalate.

[0151] (4) Preparing a touch layer and a first wiring layer pattern on a touch substrate.

[0152] In some exemplary embodiments, a first conductive film is deposited on the touch substrate 500 having the aforementioned structure, and the first conductive film is patterned by a patterning process to form a touch layer and a first wiring layer pattern disposed on the touch substrate 500, such as Figures 8 to 13 As shown. The touch layer is formed in the touch area 200, and at least includes: a first touch electrode 211, a second touch electrode 221 and a first connection portion 212. The second touch electrode 221 is connected to the second connection portion 222 of the bridge layer through a third via. The first routing layer is formed in the first touch peripheral area E12, and at least includes: a plurality of lead connection lines (for example, a plurality of first lead connection lines 501 and a plurality of second lead connection lines 502), a first shielding connection line 504 and a ground connection line 503 located on the side of the plurality of lead connection lines away from the touch area 200, and a second shielding connection line 505 located between the first lead connection line 501 and the second lead connection line 502. At least one lead connection line is connected to the first touch lead or the second touch lead of the adjacent second touch peripheral area through the first via K1. The first shielding connection line 504 is connected to the first shielding line 404 of the adjacent second touch peripheral area through the fourth via K4. The ground connection line 503 is connected to the ground line 403 of the adjacent second touch peripheral area through a plurality of second via holes K2. The second shielding connection line 505 is connected to the second shielding line 405 of the adjacent second touch peripheral area through a plurality of third via holes K3.

[0153] In some exemplary embodiments, at the junction of the touch area and the first touch peripheral area, the first touch unit may be directly connected to the lead connection line, and the second touch unit may be directly connected to the lead connection line, or connected to the lead connection line through a via. At the junction of the touch area and the second touch peripheral area, the first touch unit may be connected to the first touch lead through a via, and the second touch unit may be connected to the second touch lead through a via. However, this embodiment is not limited to this.

[0154] In some exemplary embodiments, the first conductive film may be made of a first conductive material, such as a metal material with a light transmittance greater than about 90%, or a transparent conductive material such as indium tin oxide (ITO) or indium zinc oxide (IZO). In some exemplary embodiments, the first conductive film is made of a conductive material with a light transmittance greater than about 90%, and the second conductive film is made of a second conductive material, such as a metal material. Since the surface resistance of the first conductive material and the second conductive material is different, in order to ensure that the overall routing impedance is consistent, the ratio of the routing width of the same routing in the first routing layer to the second routing layer must meet the following conditions:

[0155]

[0156] Where Sa is the routing width of the first routing layer, Sb is the routing width of the second routing layer, ρ a is the surface resistance of the first conductive material of the first wiring layer, ρ bis the surface resistance of the second conductive material of the second wiring layer. For example, the ratio of the wiring width of the lead connection wire of the first wiring layer to the wiring width of the touch lead wire of the second wiring layer connected thereto, and the ratio of the wiring width of the shielding connection wire of the first wiring layer to the wiring width of the shielding wire of the second wiring layer connected thereto are both approximately equal to the ratio of the surface resistance of the first conductive material to the surface resistance of the second conductive material.

[0157] In this exemplary embodiment, under the premise that the thickness and length of the routing are the same, the width of the routing prepared by the material with a larger surface resistance is larger, that is, the surface resistance of the material is directly proportional to the routing width. Therefore, by adjusting the width of the routing connected between the first routing layer and the second routing layer according to the surface resistance ratio of the first conductive material and the second conductive material, the consistency of the routing impedance can be ensured.

[0158] In some exemplary embodiments, the first wiring layer may be made of a metal material with a transmittance greater than about 90%, and the surface resistance of such a metal material is about 10Ω / m 2 , thereby effectively reducing the space required for routing of the first routing layer, thereby increasing the area of ​​the touch area.

[0159] (5) Preparing a protective layer on the touch substrate.

[0160] In some exemplary embodiments, a protective film is coated on the touch substrate 500 having the aforementioned structure to form a protective layer 52 covering the touch layer and the first wiring layer. Fig. 9 and Fig.12 shown.

[0161] In some example embodiments, the protection film may be made of an organic material such as polyimide, acryl, or polyethylene terephthalate.

[0162] After the above-mentioned film layer structure is prepared, it can be cut at four corners of the touch panel through a cutting process to form four notches and four independent bending areas.

[0163] The preparation process of this exemplary embodiment can be implemented using existing mature preparation equipment, with minor improvements on existing processes, and can be well compatible with existing preparation processes. The process is simple to implement, easy to implement, with high production efficiency, low production cost, and high yield rate.

[0164] In the touch panel provided by this exemplary embodiment, since the areas of the four notch regions are relatively small, the touch algorithm can be compensated to ensure that the four corners of the touch panel achieve normal touch performance.

[0165] The structure of the touch panel of this exemplary embodiment and its preparation process are merely exemplary. In some exemplary embodiments, the corresponding structure can be changed and the patterning process can be increased or decreased according to actual needs. For example, the touch panel may include: a touch substrate, a touch layer, a touch insulating layer, a bridging layer and a protective layer sequentially arranged on the touch substrate, the first wiring layer and the touch layer are the same layer structure, and the second wiring layer and the bridging layer are the same layer structure. For another example, the first touch lead connected to the first touch unit can be located in the touch peripheral area on the right or left side of the touch area. However, this embodiment is not limited to this.

[0166] Fig.18 for Figure 8 Another cross-sectional diagram along the PP direction. Fig.18 As shown, in a plane perpendicular to the touch panel, the touch area 200 includes: a touch substrate 500, a bridge layer, a first touch insulating layer 53, a touch layer, a second touch insulating layer 54 and a protective layer 52 sequentially arranged on the touch substrate 500. The bridge layer includes, for example, a second connecting portion 222, and the touch layer includes, for example, a first touch electrode 211, a first connecting portion 212 and a second touch electrode 221. The first touch peripheral area E12 includes: a touch substrate 500, a first touch insulating layer 53, a second touch insulating layer 54, a first routing layer and a protective layer 52 sequentially arranged on the touch substrate 500. The first routing layer may include: a plurality of first lead connection lines 501, a plurality of second lead connection lines 502 located on a side of the plurality of first lead connection lines 501 away from the touch area 200, a second shielding connection line 505 located between the plurality of first lead connection lines 501 and the plurality of second lead connection lines 502, a first shielding connection line 504 located on a side of the plurality of second lead connection lines 502 away from the touch area 200, and a ground connection line 503 located on a side of the first shielding connection line 504 away from the touch area 200. However, this embodiment is not limited to this. In some examples, the first routing layer may be located on a side of the touch layer close to the touch substrate, and the bridge layer is away from the touch substrate; or, the first routing layer may be located on a side of the bridge layer close to the touch substrate.

[0167] In some examples, the bridging layer may be made of a metal material, for example, any one or more of silver (Ag), copper (Cu), aluminum (Al), titanium (Ti) and molybdenum (Mo), or an alloy material of the above metals. The touch layer may be made of a transparent conductive material, for example, ITO. The first wiring layer may be made of a conductive material having a transmittance greater than about 90%, for example, a metal material having a transmittance greater than about 90%. The materials of the touch layer and the first wiring layer may be different or the same. In this exemplary embodiment, the first wiring layer is made of a conductive material having a transmittance greater than about 90%, which can ensure the visual effect of the first touch peripheral area that overlaps with the display area.

[0168] In some examples, the second touch peripheral area may include: a touch substrate 500, a second wiring layer, a first touch insulating layer, a second touch insulating layer, and a protective layer sequentially arranged on the touch substrate 500. Alternatively, the second touch peripheral area may include: a touch substrate 500, a first touch insulating layer, a second wiring layer, a second touch insulating layer, and a protective layer sequentially arranged on the touch substrate 500. The second wiring layer may be a co-layer structure with the touch layer or the bridge layer of the touch area. However, this embodiment is not limited to this.

[0169] Other structures of the touch panel in this exemplary embodiment are similar to the corresponding structures described in the above embodiments, and thus are not described in detail here.

[0170] The structure (or method) described in this embodiment mode can be combined with the structure (or method) described in other embodiment modes as appropriate.

[0171] Fig.19 FIG. 4 is another three-dimensional schematic diagram of a display touch device according to at least one embodiment of the present disclosure. Fig. 20 FIG. 4 is another schematic plan view of a touch panel according to at least one embodiment of the present disclosure. Fig. 20 for Fig.19 The schematic diagram of the top view of the touch panel of the display touch device in the unbent state is shown. Fig.19 and Fig. 20 As shown, in this exemplary embodiment, the touch panel 2 includes: a plane area A1 and curved areas located on the four sides of the plane area A1 (i.e., the first curved area B1 to the fourth curved area B4). The plane area A1 is roughly a rounded rectangle. Not only are four notches (i.e., the first notch C1 to the fourth notch C4) set outside the four corner areas of the plane area A1, but a portion can also be reserved to form a connecting area between adjacent curved areas so that the adjacent curved areas can be connected. In this example, the connecting area between adjacent curved areas is located between the plane area A1 and the notch.

[0172] Other structures of the touch panel in this exemplary embodiment are similar to the corresponding structures described in the above embodiments, and thus are not described in detail here.

[0173] The structure (or method) described in this embodiment mode can be combined with the structure (or method) described in other embodiment modes as appropriate.

[0174] Fig.21 FIG. 4 is another three-dimensional schematic diagram of a display touch device according to at least one embodiment of the present disclosure. Fig. 22 FIG. 4 is another schematic plan view of a touch panel according to at least one embodiment of the present disclosure. Fig. 22 for Fig.21 The schematic diagram of the top view of the touch panel of the display touch device in the unbent state is shown. Fig.21 and Fig. 22 As shown, in this exemplary embodiment, the touch panel 2 includes: a plane area A1 and curved areas located on the four sides of the plane area A1 (i.e., the first curved area B1 to the fourth curved area B4). The plane area A1 is a shape formed by cutting the four corner areas of the rounded rectangle, and the shape cut off at the corner position of the rounded rectangle is roughly a fan ring shape. However, this embodiment is not limited to this.

[0175] Other structures of the touch panel in this exemplary embodiment are similar to the corresponding structures described in the above embodiments, and thus are not described in detail here.

[0176] The structure (or method) described in this embodiment mode can be combined with the structure (or method) described in other embodiment modes as appropriate.

[0177] In some exemplary embodiments, the touch panel uses the encapsulation layer of the display panel as a touch substrate to form an on-cell structure. In some examples, the display panel includes an OLED display substrate, and the touch panel is disposed on the encapsulation layer of the OLED display substrate to form a flexible multi-layer on-cell (FMLOC) structure, which integrates the display structure and the touch structure, has the advantages of being thin and light, and foldable, and can meet product requirements such as flexible folding and narrow bezels.

[0178] Fig.23 The diagram is a planar structural diagram of a display touch control device according to an exemplary embodiment of the present disclosure. Fig.23 FIG. 1 is a schematic top view showing the four sides of the touch control device in an unbent state. In some exemplary embodiments, Fig.23 As shown, the touch panel 2 is arranged on the encapsulation layer of the display panel 1, and the encapsulation layer of the display panel 1 is used as a touch substrate. In a plane parallel to the touch panel, the touch panel 2 may include a touch area and a touch peripheral area located outside the touch area. The display panel 1 may include: a display area and a display peripheral area located outside the display area. The relevant description of the touch area and the touch peripheral area can refer to the description of the previous embodiment, so it will not be repeated here.

[0179] Fig.24 for Fig.23 A cross-sectional schematic diagram of a display touch device is shown. Fig.24The structure of three sub-pixels is illustrated in FIG. In some exemplary embodiments, on a plane perpendicular to the display touch device, the display panel may include a driving circuit layer 102 disposed on a substrate 101, a light emitting device 103 disposed on a side of the driving circuit layer 102 away from the substrate 101, and an encapsulation layer 104 disposed on a side of the light emitting device 103 away from the substrate 101. In some examples, the display panel may include other film layers, such as spacers, etc., which are not limited in the embodiments of the present disclosure.

[0180] In some exemplary embodiments, the substrate 101 may be a flexible substrate. The flexible substrate may include a first flexible material layer, a first inorganic material layer, a semiconductor layer, a second flexible material layer, and a second inorganic material layer stacked. The materials of the first flexible material layer and the second flexible material layer may be polyimide (PI), polyethylene terephthalate (PET), or a surface-treated polymer soft film, the materials of the first inorganic material layer and the second inorganic material layer may be silicon nitride (SiNx) or silicon oxide (SiOx), etc., to improve the water and oxygen resistance of the substrate, and the material of the semiconductor layer may be amorphous silicon (a-Si). However, this embodiment is not limited to this.

[0181] In some exemplary embodiments, the driving circuit layer 102 of each sub-pixel may include a plurality of transistors and storage capacitors constituting a pixel driving circuit. Fig.24 In the example, each sub-pixel includes a driving transistor and a storage capacitor. In some examples, the driving circuit layer 102 of each sub-pixel may include: a first insulating layer disposed on the substrate 101; an active layer disposed on the first insulating layer; a second insulating layer covering the active layer; a gate electrode and a first capacitor electrode disposed on the second insulating layer; a third insulating layer covering the gate electrode and the first capacitor electrode; a second capacitor electrode disposed on the third insulating layer; a fourth insulating layer covering the second capacitor electrode, the second insulating layer, the third insulating layer and the fourth insulating layer having vias, the vias exposing the active layer; a source electrode and a drain electrode disposed on the fourth insulating layer, the source electrode and the drain electrode being connected to the active layer through the vias respectively; a flat layer covering the aforementioned structure, the flat layer having vias, the vias exposing the drain electrode. The active layer, the gate electrode, the source electrode and the drain electrode constitute the driving transistor, and the first capacitor electrode and the second capacitor electrode constitute the storage capacitor.

[0182] In some exemplary embodiments, the light emitting device 103 may include an anode, a pixel definition layer, an organic light emitting layer, and a cathode. The anode is disposed on the planar layer and connected to the drain electrode of the driving transistor through a via hole provided on the planar layer; the pixel definition layer is disposed on the anode and the planar layer, and a pixel opening is disposed on the pixel definition layer, and the pixel opening exposes the anode; the organic light emitting layer is at least partially disposed in the pixel opening, and the organic light emitting layer is connected to the anode; the cathode is disposed on the organic light emitting layer, and the cathode is connected to the organic light emitting layer; the organic light emitting layer emits light of corresponding colors under the drive of the anode and the cathode.

[0183] In some exemplary embodiments, the encapsulation layer 104 may include a first encapsulation layer, a second encapsulation layer, and a third encapsulation layer stacked together. The first encapsulation layer and the third encapsulation layer may be made of inorganic materials, the second encapsulation layer may be made of organic materials, and the second encapsulation layer is disposed between the first encapsulation layer and the third encapsulation layer, so as to ensure that external water vapor cannot enter the light-emitting device 103.

[0184] In some exemplary embodiments, the organic light-emitting layer of the light-emitting element 103 may include an emitting layer (EML, Emitting Layer), and one or more film layers including a hole injection layer (HIL, Hole Injection Layer), a hole transport layer (HTL, Hole Transport Layer), a hole blocking layer (HBL, Hole Block Layer), an electron blocking layer (EBL, Electron Block Layer), an electron injection layer (EIL, Electron Injection Layer), and an electron transport layer (ETL, Electron Transport Layer). Under the voltage drive of the anode and the cathode, the light-emitting characteristics of the organic material are used to emit light according to the required grayscale.

[0185] In some exemplary embodiments, the light-emitting layers of light-emitting elements of different colors are different. For example, the red light-emitting element includes a red light-emitting layer, the green light-emitting element includes a green light-emitting layer, and the blue light-emitting element includes a blue light-emitting layer. In order to reduce the process difficulty and improve the yield, the hole injection layer and the hole transport layer on one side of the light-emitting layer can use a common layer, and the electron injection layer and the electron transport layer on the other side of the light-emitting layer can use a common layer. In some examples, any one or more layers of the hole injection layer, the hole transport layer, the electron injection layer, and the electron transport layer can be made by a single process (a single evaporation process or a single inkjet printing process), and isolation is achieved by means of a surface step difference of the formed film layer or by surface treatment. For example, any one or more layers of the hole injection layer, the hole transport layer, the electron injection layer, and the electron transport layer corresponding to adjacent sub-pixels can be isolated. In some examples, the organic light-emitting layer can be formed by evaporation using a fine metal mask (FMM, Fine Metal Mask) or an open mask (Open Mask), or by inkjet technology.

[0186] In some exemplary embodiments, on a plane perpendicular to the touch panel, the touch panel may include a buffer layer 105 disposed on a side of the encapsulation layer 104 away from the substrate 101, a second conductive layer 512 disposed on a side of the buffer layer 105 away from the substrate 101, a touch insulating layer 51 disposed on a side of the second conductive layer 512 away from the substrate 101, a first conductive layer 510 disposed on a side of the touch insulating layer 51 away from the substrate 101, and a protective layer 52 disposed on a side of the first conductive layer 510 away from the substrate 101. The first conductive layer 510 may include a touch layer located in a touch area (for example, including a first touch electrode, a second touch electrode, and a first connection portion) and a first wiring layer located in a touch peripheral area (for example, including a ground connection line, a shielding connection line, and a plurality of lead connection lines). The second conductive layer 512 may include a bridge layer located in the touch area (for example, including a second connection portion, connecting adjacent second touch electrodes to each other through vias) and a second wiring layer located in a touch peripheral area (for example, including a ground line, a shielding line, and a plurality of touch leads).

[0187] In some exemplary embodiments, the buffer layer 105, the touch insulating layer 51 and the protective layer 52 may be made of organic materials. The second conductive layer 512 may be made of a metal material, such as any one or more of silver (Ag), copper (Cu), aluminum (Al), titanium (Ti) and molybdenum (Mo), or an alloy material of the above metals. The first conductive layer 510 may be made of a conductive material with a transmittance greater than about 90%, such as a metal material with a transmittance greater than about 90%, or a transparent conductive material such as ITO. However, this embodiment is not limited to this.

[0188] The relevant structures of the touch panel in this exemplary embodiment are similar to the corresponding structures described in the above embodiments, so they are not described again here.

[0189] The structure (or method) described in this embodiment mode can be combined with the structure (or method) described in other embodiment modes as appropriate.

[0190] In some exemplary embodiments, the display touch device of the exemplary embodiments of the present disclosure may be any product or component with display and touch functions, such as a mobile phone, a tablet computer, a television, a display, a laptop computer, a digital photo frame, and a navigator.

[0191] At least one embodiment of the present disclosure further provides a method for preparing a touch panel. The touch panel includes: a plane area and a curved area located on at least one side of the plane area. The touch panel has at least one notch adjacent to the curved area. The preparation method includes: forming a light-transmissive first wiring layer in at least one first touch peripheral area located around at least one notch.

[0192] In some exemplary embodiments, the preparation method further includes: forming a second routing layer in at least one second touch peripheral area that at least partially overlaps with at least one bending area, and the first routing layer in the first touch peripheral area is electrically connected to the second routing layer in the adjacent second touch peripheral area.

[0193] The preparation method of this embodiment can refer to the description of the above embodiment, so it will not be described again here.

[0194] The drawings in this disclosure only relate to the structures involved in this disclosure, and other structures may refer to the general design. In the absence of conflict, the embodiments of this disclosure and the features in the embodiments may be combined with each other to obtain new embodiments.

[0195] Those skilled in the art should understand that the technical solutions of the present disclosure may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present disclosure, and all should be included in the scope of the claims of the present disclosure.

Claims

1. A touch panel, It is characterized in that include: A plane region, and a curved region located on at least one side of the plane region; The touch panel has at least one notch adjacent to the bending area; The touch panel comprises at least one first touch peripheral area located around the at least one notch, and the at least one first touch peripheral area is provided with a light-transmissive first wiring layer; The touch panel also includes: at least one second touch peripheral area, the at least one second touch peripheral area at least partially overlaps with the at least one curved area, and the at least one second touch peripheral area is provided with a second routing layer; the second routing layer and the first routing layer are different-layer structures; the first routing layer in the first touch peripheral area is electrically connected to the second routing layer in the adjacent second touch peripheral area.

2. The touch panel according to claim 1, It is characterized in that The plane area has a plurality of corner areas, and the at least one notch is located at the periphery of at least one corner area of ​​the plane area.

3. The touch panel according to claim 2, It is characterized in that The plane area is in the shape of a rounded rectangle, four sides of the plane area are all provided with curved areas, and a gap is provided between the curved areas on two adjacent sides.

4. The touch panel according to any one of claims 1 to 3, It is characterized in that The edge of the touch panel corresponding to the at least one notch includes a first straight line segment, an arc segment and a second straight line segment connected in sequence, or the edge of the touch panel corresponding to the at least one notch includes a first straight line segment, a first transition segment, an arc segment, a second transition segment and a second straight line segment connected in sequence; the extension directions of the first straight line segment and the second straight line segment intersect.

5. The touch panel according to claim 1, It is characterized in that A first touch peripheral area around the at least one notch partially overlaps with the planar area, and partially overlaps with a curved area adjacent to the at least one notch.

6. The touch panel according to claim 1, It is characterized in that The touch panel further includes: a touch area, wherein the touch area partially overlaps with both the planar area and the at least one curved area; A plurality of first touch control units and a plurality of second touch control units are arranged in the touch control area; at least one first touch control unit includes a plurality of first touch control electrodes and a plurality of first connecting portions arranged in sequence along a first direction; at least one second touch control unit includes a plurality of second touch control electrodes and a plurality of second connecting portions arranged in sequence along a second direction; the first direction intersects with the second direction.

7. The touch panel according to claim 6, It is characterized in that The plurality of first touch electrodes, the plurality of second touch electrodes and the plurality of first connecting portions are arranged in the same layer on the touch layer, the plurality of second connecting portions are arranged on the bridge layer, and the second connecting portions are connected to adjacent second touch electrodes through via holes on the touch insulating layer between the bridge layer and the touch layer; or The multiple first touch electrodes, the multiple second touch electrodes and the multiple second connecting parts are arranged in the same layer of the touch layer, the multiple first connecting parts are arranged in the bridging layer, and the first connecting parts are interconnected with adjacent first touch electrodes through via holes on the touch insulating layer between the bridging layer and the touch layer.

8. The touch panel according to claim 7, It is characterized in that The first wiring layer and the touch layer are in the same layer structure, and the second wiring layer and the bridge layer are in the same layer structure.

9. The touch panel according to claim 6, It is characterized in that The second wiring layer in the at least one second touch peripheral area includes at least one of the following: a plurality of first touch leads and a plurality of second touch leads; the first touch leads are connected to the first touch unit, and the second touch leads are connected to the second touch unit; The first routing layer in the at least one first touch peripheral area includes: a plurality of lead connection lines, at least one of the plurality of lead connection lines is configured to be connected to the first touch lead or the second touch lead in the adjacent second touch peripheral area.

10. The touch panel according to claim 9, It is characterized in that The plurality of lead connection lines of the first wiring layer have connection ends, and the connection ends of adjacent lead connection lines are arranged in a staggered manner.

11. The touch panel according to claim 1, It is characterized in that The ratio of the width of the same routing line in the first routing layer to the width of the same routing line in the second routing layer is equal to the ratio of the surface resistance of the first conductive material used in the first routing layer to the surface resistance of the second conductive material used in the second routing layer.

12. The touch panel according to claim 11, It is characterized in that The first conductive material includes a conductive material with a light transmittance greater than 90%.

13. The touch panel according to claim 11 or 12, It is characterized in that The surface resistance of the first conductive material is 10Ω / m 2 .

14. A display touch device, It is characterized in that include: A display panel and a touch panel as claimed in any one of claims 1 to 13 arranged on the display panel.

15. The display touch device according to claim 14, It is characterized in that The touch substrate of the touch panel is arranged on the display panel to form an external structure.

16. The display touch device according to claim 14, It is characterized in that The touch panel uses the packaging layer of the display panel as a touch substrate to form a covering surface structure.

17. The display touch device according to claim 14, It is characterized in that At least one corner area of ​​the plane area of ​​the touch panel has an arc-shaped edge, and the arc-shaped edge of the corner area faces the arc-shaped edge of the display panel.

18. The display touch device according to claim 14, It is characterized in that The orthographic projection of at least one notch of the touch panel on the display panel partially overlaps with the display area of ​​the display panel.

19. A method for preparing a touch panel, It is characterized in that The touch panel comprises: a plane area and a curved area located on at least one side of the plane area, and the touch panel has at least one notch adjacent to the curved area; The preparation method comprises: Forming a light-transmissive first wiring layer in at least one first touch peripheral area located around the at least one notch; A second routing layer is formed in a second touch peripheral area at least partially overlapping with at least one curved area. The second routing layer and the first routing layer are in a different-layer structure. The first routing layer in the first touch peripheral area is electrically connected to the second routing layer in the adjacent second touch peripheral area.

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