Touch display panel and display device

Abstract

The embodiment of the utility model discloses a touch control display panel and a display device, the touch control display panel comprises a display area and a frame area, the frame area comprises a first sub-frame area and a second sub-frame area, the touch control display panel further comprises an array substrate, a color film substrate and a touch control layer, the color film substrate is located on one side of the array substrate, and the touch control layer is located on the other side of the color film substrate. The color film substrate is provided with a special-shaped part, and the vertical projection of the special-shaped part of the color film substrate on the array substrate is partially overlapped with the array substrate in the second sub-frame area; the touch layer is located on the side, away from the array substrate, of the color film substrate. Wherein the special-shaped part is provided with a touch control bonding pad, and the touch control bonding pad is connected with the touch control layer through the first sub-frame area. According to the technical scheme provided by the embodiment of the utility model, the special-shaped part is arranged, and the touch pad on the color film substrate is moved to the second sub-frame area from the original first sub-frame area, so that the width of the first sub-frame area can be reduced, and the overall width of the lower frame of the touch display panel can be further reduced.

Description

Technical Field

[0001] The embodiments of the utility model relate to the field of display technology, and in particular to a touch display panel and a display device. Background Art

[0002] With the continuous development of display technology, touch display panels are widely used in display devices such as mobile phones and computers.

[0003] In the existing On-Cell touch display technology, due to the limitation of the lower frame of the color film substrate, the lower frame of the entire touch display panel is relatively wide, which is not conducive to achieving a narrow frame. The existing technology usually adopts the method of compressing the space occupied by the touch wiring to reduce the lower frame of the color film substrate, but the compression of the touch wiring space will increase the impedance of the touch wiring, which is not conducive to touch operation. Utility Model Content

[0004] The embodiments of the present invention provide a touch display panel and a display device, so as to realize a narrow frame design of the touch display panel without affecting the touch operation.

[0005] According to one aspect of the present invention, a touch display panel is provided, comprising a display area and a frame area, wherein the frame area comprises a first sub-frame area and a second sub-frame area, and the first sub-frame area and the second sub-frame area are arranged along a first direction; the touch display panel further comprises:

[0006] An array substrate;

[0007] a color filter substrate, the color filter substrate being located at one side of the array substrate, the color filter substrate being provided with a special-shaped portion, and a vertical projection of the special-shaped portion of the color filter substrate on the array substrate partially overlapping with the array substrate in the second sub-frame area;

[0008] A touch layer, the touch layer is located on a side of the color filter substrate away from the array substrate;

[0009] Wherein, a touch pad is arranged on the special-shaped portion, and the touch pad is connected to the touch layer via the first sub-frame area.

[0010] Optionally, along the first direction, an edge of the special-shaped portion coincides with an edge of the array substrate;

[0011] The plurality of touch pads are arranged along a second direction, wherein the first direction intersects with the second direction and is perpendicular to a thickness direction of the array substrate.

[0012] Optionally, in the second sub-border area, a chip reserved area is provided on the array substrate at a portion where the irregularly shaped portion and the array substrate do not overlap, and the chip reserved area is located between vertical projections of two adjacent irregularly shaped portions on the array substrate.

[0013] Optionally, the number of the chip reserved area is one, and the touch pads are arranged on the special-shaped portions on both sides of the chip reserved area;

[0014] Among them, the touch pad includes a first touch pad and a second touch pad, the touch pad on the special-shaped portion on one side of the chip reserved area includes a part of the first touch pad and a part of the second touch pad, and the touch pad on the special-shaped portion on the other side of the chip reserved area includes another part of the first touch pad and another part of the second touch pad.

[0015] Optionally, along the first direction, the shortest distance between an edge of the display area close to the first sub-frame area and an edge of the first sub-frame area close to the second sub-frame area is between 0.75 mm and 1.45 mm.

[0016] Optionally, there are multiple chip reserved areas, and the touch pad is arranged on the special-shaped portion between two adjacent chip reserved areas close to the central area of ​​the second sub-frame area;

[0017] The touch pads include first touch pads and second touch pads, and the touch pads on the special-shaped portion include all of the first touch pads and all of the second touch pads.

[0018] Optionally, along the first direction, the shortest distance between an edge of the display area close to the first sub-frame area and an edge of the first sub-frame area close to the second sub-frame area is no more than 2.25 mm.

[0019] Optionally, the touch layer includes a touch electrode layer and a touch wiring layer, the touch electrode layer is connected to the touch wiring layer, and the touch wiring layer is correspondingly connected to the touch pad; wherein the vertical projection of the touch electrode layer on the array substrate covers the vertical projection of the display area on the array substrate.

[0020] Optionally, the touch electrode layer includes a first touch electrode layer and a second touch electrode layer, and the second touch electrode layer is located at a side of the first touch electrode layer away from the array substrate;

[0021] The touch routing layer includes a first touch routing and a second touch routing arranged in different layers, the first touch routing is connected to the first touch electrode layer via the first sub-frame area, and the second touch routing is connected to the second touch electrode layer via the first sub-frame area.

[0022] According to another aspect of the present invention, a display device is provided. The display device includes the touch display panel provided by any embodiment of the present invention.

[0023] The technical solution provided by the embodiment of the utility model is to design the shape of the color filter substrate to be irregular, so that the vertical projection of the irregular part of the color filter substrate on the array substrate partially overlaps with the second sub-frame area of ​​the array substrate, and the touch pad is set on the irregular part. Compared with the solution in the related art, the technical solution provided by the embodiment of the utility model moves the touch pad on the color filter substrate from the original first sub-frame area to the second sub-frame area by setting the irregular part, so that there is no touch pad in the first sub-frame area, thereby reducing the width of the first sub-frame area, and further reducing the overall width of the lower frame of the touch display panel, which is conducive to realizing a narrow frame design.

[0024] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present utility model, nor are they intended to limit the scope of the present utility model. Other features of the present utility model will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 It is a structural schematic diagram of a touch display panel in the related art;

[0027] Figure 2 A schematic diagram of a planar structure of a touch display panel provided by an embodiment of the utility model;

[0028] Figure 3 A schematic cross-sectional structure diagram of a touch display panel provided in an embodiment of the utility model;

[0029] Figure 4 A schematic diagram of the planar structure of another touch display panel provided by an embodiment of the utility model;

[0030] Figure 5A schematic diagram of the planar structure of another touch display panel provided by an embodiment of the utility model;

[0031] Figure 6 A schematic diagram of the structure of another touch display panel provided by an embodiment of the utility model;

[0032] Among them, 10-array substrate; 20-color film substrate; 201-touch pad; 21-special-shaped part;

[0033] 30 - touch electrode layer; 301 - first touch electrode layer; 302 - second touch electrode layer;

[0034] 40-touch wiring layer; 401-first touch wiring 401; 402-second touch wiring;

[0035] 51-chip reserved area;

[0036] AA-display area; FA-first sub-frame area; BA-second sub-frame area. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0038] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0039] Figure 1 is a schematic diagram of a touch display panel in the related art, refer to Figure 1The touch display panel includes a display area AA and a frame area. The frame area includes a first sub-frame area FA and a second sub-frame area BA. The first sub-frame area FA and the second sub-frame area BA are arranged along a first direction; wherein the first direction may be a Y direction. The touch pad 210 is usually disposed at the lower frame of the color film substrate 20, that is, located in the first sub-frame area FA, and the width of the first sub-frame area FA at this time is marked as H0. The touch pad 210 is used to access the touch signal and transmit it to the touch electrode via the touch wiring. Since the touch pad 210 and the touch wiring occupy the area of ​​the lower frame of the color film substrate 20, the width of the first sub-frame area FA is relatively large, which is not conducive to achieving a lower narrow frame.

[0040] In view of the above problems, an embodiment of the present invention provides a touch display panel. Figure 2 A schematic diagram of a planar structure of a touch display panel provided by an embodiment of the utility model, Figure 3 A schematic cross-sectional structure diagram of a touch display panel provided by an embodiment of the utility model, specifically: Figure 2 The cross-sectional structure of the touch display panel shown in FIG. 1 is obtained along the cutting line BB'. Figure 2 and Figure 3 , the touch display panel also includes:

[0041] An array substrate 10;

[0042] A color filter substrate 20, which is located on one side of the array substrate 10. The color filter substrate 20 is provided with a special-shaped portion 21. The vertical projection of the special-shaped portion 21 of the color filter substrate 20 on the array substrate 10 partially overlaps with the array substrate 10 in the second sub-frame area BA.

[0043] A touch layer, which is located on a side of the color filter substrate 20 away from the array substrate 10;

[0044] A touch pad 210 is disposed on the irregular portion 21 , and the touch pad 210 is bonded to the touch layer via the first sub-frame area FA.

[0045] Specifically, the touch display panel provided in this embodiment can be a liquid crystal display panel (Liquid Crystal Display, LCD) or an organic light emitting display panel (Organic Light Emitting Diode, OLED). A driving unit is provided on the array substrate 10, which can be used to drive the liquid crystal deflection in the LCD, or to drive the light emitting diode in the OLED to emit light. A plurality of color resists (not shown in the figure) are provided on the color filter substrate 20, and the plurality of color resists can be arranged in a certain arrangement manner for red color resists, green color resists and blue color resists. Among them, both the array substrate 10 and the color filter substrate 20 can be glass substrates.

[0046] The touch layer can be used to realize the touch function. For example, the touch layer includes a touch electrode layer 30 and a touch wiring layer 40. The vertical projection of the touch electrode layer 30 on the array substrate 10 covers the vertical projection of the display area AA on the array substrate 10. The touch wiring in the touch wiring layer 40 can extend through the first sub-frame area FA. The touch electrode layer 30 can be bonded to the touch pad 210 through the touch wiring layer 40, thereby realizing the transmission of the touch signal.

[0047] In the present embodiment, the color filter substrate 20 is provided with a shaped portion 21. That is, the color filter substrate 20 is an irregular shape. The shaped portion 21 is located in the second sub-frame area BA, and the vertical projection of the shaped portion 21 on the array substrate 10 partially overlaps with the array substrate 10. Here, the partial overlap means that in the second sub-frame area BA, the vertical projection of the shaped portion 21 on the array substrate 10 does not completely cover the array substrate 10. In other words, in the second sub-frame area BA, the area of ​​the shaped portion 21 is smaller than the area of ​​the array substrate 10.

[0048] Furthermore, the touch pad 210 is arranged on the special-shaped portion 21. Since the special-shaped portion 21 is located in the second sub-frame area BA, the width of the color film substrate 20 in the first sub-frame area FA can be reduced to H2, H2<H0, and the width H1 of the second sub-frame area BA remains unchanged, that is, H1+H2

[0049] The technical solution provided by the embodiment of the utility model is to design the shape of the color filter substrate 20 to be irregular, so that the vertical projection of the irregular portion 21 of the color filter substrate 20 on the array substrate 10 partially overlaps with the second sub-frame area BA of the array substrate 10, and the touch pad 210 is arranged on the irregular portion 21. Compared with the solution in the related art, the technical solution provided by the embodiment of the utility model moves the touch pad 210 on the color filter substrate 20 from the original first sub-frame area FA to the second sub-frame area BA by setting the irregular portion 21, so that the touch pad 210 does not exist in the first sub-frame area FA, thereby reducing the width of the first sub-frame area FA, and further reducing the overall width of the lower frame of the touch display panel, which is conducive to realizing a narrow frame design.

[0050] Continue to refer Figure 2 and Figure 3 Since the vertical projection of the special-shaped portion 21 of the color filter substrate 20 on the array substrate 10 partially overlaps with the array substrate 10 in the second sub-border area BA, the area difference between the color filter substrate 20 and the array substrate 10 can be reduced, so that the color filter substrate 20 can cover at least part of the array substrate 10 in the second sub-border area BA, which is beneficial to reducing the risk of the array substrate 10 being broken due to external impact or stress at the edge or corner. ​

[0051] Figure 4 A schematic diagram of a planar structure of another touch display panel provided by an embodiment of the present utility model, referring to Figure 4 On the basis of the above embodiment, optionally, along the first direction, the edge of the profiled portion 21 coincides with the edge of the array substrate 10, which can further reduce the area difference between the color filter substrate 20 and the array substrate 10 to minimize the risk of fragmentation in the border area.

[0052] Optionally, the plurality of touch pads 210 are arranged along the second direction, and more touch pads 210 can be provided without changing the width H1 of the second sub-frame area BA, which is beneficial to the layout of the touch pads 210. The second direction may be an X direction, wherein the first direction intersects with the second direction and is perpendicular to the thickness direction of the array substrate 10.

[0053] Figure 5 A schematic diagram of a planar structure of another touch display panel provided by an embodiment of the present utility model, referring to Figure 5 On the basis of the above embodiment, optionally, in the second sub-frame area BA, a chip reserved area 51 is provided on the array substrate 10 at the non-overlapping portion of the irregularly shaped portion 21 and the array substrate 10, wherein the chip reserved area 51 can be used to set a driver chip and some bonding pads. The chip reserved area 51 is located between the vertical projections of two adjacent irregularly shaped portions 21 on the array substrate 10, that is, the two adjacent irregularly shaped portions 21 are symmetrically arranged about the chip reserved area 51. Optionally, the chip reserved area 51 can be arranged on the central axis of the touch display panel in the first direction, which is conducive to optimizing the layout of the touch wiring.

[0054] Specifically, combined Figure 3 and Figure 5 The touch layer includes a touch electrode layer 30 and a touch wiring layer 40, the touch electrode layer 30 is connected to the touch wiring layer 40, and the touch wiring layer 40 is connected to the touch pad 210 correspondingly; wherein, the vertical projection of the touch electrode layer 30 on the array substrate 10 covers the vertical projection of the display area AA on the array substrate 10. That is, the edge of the touch electrode layer 30 exceeds the edge of the display area AA to ensure the touch effect at the edge of the display area AA.

[0055] Among them, the touch electrode layer 30 includes a first touch electrode layer 301 and a second touch electrode layer 302, and the second touch electrode layer 302 is located on the side of the first touch electrode layer 301 away from the array substrate 10; the touch wiring layer 40 includes a first touch wiring 401 and a second touch wiring 402 arranged in different layers, the first touch wiring 401 is connected to the first touch electrode layer 301 via the first sub-frame area FA, and the second touch wiring 402 is connected to the second touch electrode layer 302 via the first sub-frame area FA.

[0056] The first touch electrode layer 301 and the second touch electrode layer 302 are both in the shape of metal grids. The first touch electrode layer 301 includes a plurality of first touch electrodes, and the second touch electrode layer 302 includes a plurality of second touch electrodes. The plurality of first touch electrodes are connected to form the first touch electrode layer 301, and the plurality of second touch electrodes are connected to form the second touch electrode layer 302. Of course, in other embodiments, the touch electrode layer 30 may also be other touch structures, which will not be described in detail here.

[0057] In this embodiment, the first touch electrode layer 401 may be a touch driving electrode layer, and the second touch electrode layer 402 may be a touch sensing electrode layer. Accordingly, the first touch pad 201 is used to transmit a touch driving signal, and the second touch pad 202 is used to transmit a touch sensing signal.

[0058] like Figure 5 As shown, the number of chip reserved areas 51 can be one, and the special-shaped parts 21 on both sides of the chip reserved area 51 are provided with touch pads 210; wherein, the touch pads 210 include a first touch pad 201 and a second touch pad 202, the touch pads 210 on the special-shaped part 21 on one side of the chip reserved area 51 include part of the first touch pad 201 and part of the second touch pad 202, and the touch pads 210 on the special-shaped part 21 on the other side of the chip reserved area 51 include another part of the first touch pad 201 and another part of the second touch pad 202. Exemplarily, the touch pads corresponding to the left half of the touch electrodes (including the first touch electrodes and the second touch electrodes) are provided on the special-shaped part 21 on the left side of the chip reserved area 51, and the touch pads corresponding to the right half of the touch electrodes are provided on the special-shaped part 21 on the right side of the chip reserved area 51. The advantage of such a setting is that it is conducive to reducing the width of the first sub-frame area FA to a large extent.

[0059] The touch pads 210 provided on the special-shaped portions 21 on both sides of the chip reserved area 51 are bonded to different flexible circuit boards respectively to realize the input and output of touch signals. For example, all the first touch pads 201 and the second touch pads 202 on the left side of the chip reserved area 51 are bonded to the first flexible circuit board, and all the first touch pads 201 and the second touch pads 202 on the right side of the chip reserved area 51 are bonded to the second flexible circuit board, and the first flexible circuit board and the second flexible circuit board are electrically connected.

[0060] In this embodiment, in the first direction, it is assumed that the width of the touch pad 210 is 500 μm and the cutting tolerance is 100 μm, wherein the cutting tolerance refers to the 100 μm spacing between the lower edge of the color film substrate 20 and the touch pad 210, so as to prevent the touch pad 210 from being damaged when the color film substrate 20 is cut. Therefore, by setting the touch pad 210 on the special-shaped portion 21 of the color film substrate 20, the size △H of the lower frame of the color film substrate 20 can be reduced to (500+100+h) μm, wherein h is the reduced width of the touch line in the first direction, specifically the reduced width of the first touch line 401 in the first direction. According to the number of the first touch lines 401, h is between 800 μm and 1500 μm, and therefore, △H is between 1400 μm and 2100 μm. Here, the size of the lower frame of the color filter substrate 20 refers to the shortest distance between the edge of the display area AA close to the first sub-frame area FA and the edge of the first sub-frame area FA close to the second sub-frame area BA along the first direction, that is, the vertical distance from the edge of the color filter substrate 20 above the chip reserved area 51 to the edge of the display area AA. For example, Figure 1 In the structure shown, H0=2850μm, H1=2450μm, and the width of the lower frame of the touch display panel is H0+H1; while in this solution, H2=H0-△H, that is, the size of H2 is between 0.75mm and 1.45mm. In addition, since the size of H1 remains unchanged, Figure 1 According to the structure shown, the width of the lower frame of the touch display panel provided in this embodiment can be reduced by (2.85-1.45=1.4) mm to (2.85-0.75=2.1) mm. Therefore, this solution can greatly reduce the size of the lower frame of the touch display panel, which is conducive to realizing a narrow frame design.

[0061] It should be understood that in the above scheme, due to the presence or absence of the special-shaped portion 21, the touch pad 210 is located below the touch electrode layer 30, so the wiring size of the second touch line 402 in the first direction does not change, only the wiring size of the first touch line 401 in the first direction is changed, so h is the reduced width of the first touch line 401 in the first direction.

[0062] Optionally, in another optional implementation manner provided by the present invention, the number of chip reserved areas 51 may be multiple to suit different application scenarios, and the multiple chip reserved areas 51 may be used to respectively set corresponding driver chips. Figure 6 A schematic diagram of the structure of another touch display panel provided by an embodiment of the utility model, wherein: Figure 6 Only part of the touch line is shown. Figure 6On the basis of the above embodiments, the number of chip reserved areas 51 can be two, and the two chip reserved areas 51 are symmetrically arranged about the central axis of the touch display panel, and a touch pad 210 is arranged on the special-shaped portion 21 between two adjacent chip reserved areas 51 near the central area of ​​the second sub-frame area BA; wherein the touch pad 210 includes a first touch pad 201 and a second touch pad 202, and the touch pad 210 on the special-shaped portion 21 between two adjacent chip reserved areas 51 includes all the first touch pads 201 and all the second touch pads 202.

[0063] Specifically, in this embodiment, by centrally arranging all the touch pads 210 on the special-shaped portion 21 between the two chip reserved areas 51, the length and number of the flexible circuit boards bonded thereto can be reduced, which is beneficial to reducing system cost and design difficulty. And by centrally arranging the touch pads 210 between two adjacent chip reserved areas 51 near the center area of ​​the second sub-frame area BA, the touch pads 210 can be arranged close to the central axis of the entire touch display panel, which is more conducive to the wiring of the touch lines.

[0064] Among them, since all the touch pads 210 are located in the central area of ​​the entire shaped portion 21, the wiring dimensions of the first touch trace 401 and the second touch trace 402 are not changed. At this time, the size △H of the lower frame of the color film substrate 20 is reduced to (500+100)μm, that is, only the width of the touch pad 210 in the first direction and the size of the cutting tolerance are saved, H2=H0-△H, that is, the size of H2 is not greater than 2.25mm. Figure 5 The scheme shown, Figure 6 The reduced border size of the solution shown is slightly smaller, but still capable of achieving a narrow border design.

[0065] Optionally, in other embodiments, if the number of chip reserved areas 51 is greater than two, the touch pads 210 can also be concentrated on the special-shaped portion 21 between two adjacent chip reserved areas 51, which can reduce the size of the lower frame while also reducing system cost and design difficulty.

[0066] The technical solution provided by the embodiment of the utility model changes the shape of the color filter substrate 20 so that the color filter substrate 20 has a shaped portion 21, and the vertical projection of the shaped portion 21 of the color filter substrate 20 on the array substrate 10 partially overlaps with the second sub-frame area BA of the array substrate 10, and the touch pad 210 is arranged on the shaped portion 21. Compared with the solution in the related art, the technical solution provided by the embodiment of the utility model moves the touch pad 210 on the color filter substrate 20 from the original first sub-frame area FA to the second sub-frame area BA by setting the shaped portion 21, so that the touch pad 210 does not exist in the first sub-frame area FA, thereby reducing the width of the first sub-frame area FA, and further reducing the overall width of the lower frame of the touch display panel, which is conducive to realizing a narrow frame design. In addition, since the vertical projection of the special-shaped portion 21 of the color filter substrate 20 on the array substrate 10 partially overlaps with the array substrate 10 in the second sub-border area BA, it is equivalent to increasing the area of ​​the color filter substrate. Therefore, it is beneficial to reduce the risk of the array substrate 10 being broken due to external impact or stress at the edges or corners.

[0067] Optionally, the embodiment of the utility model further provides a display device, which includes the touch display panel provided in any of the above embodiments. In this embodiment, the display device can be a laptop computer, or any electronic product with a display function, including but not limited to the following categories: televisions, mobile phones, desktop displays, tablet computers, digital cameras, smart bracelets, smart glasses, car displays, medical equipment, industrial control equipment, touch interactive terminals, etc., and the embodiment of the utility model does not specifically limit this.

[0068] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be performed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0069] The above specific implementations do not constitute a limitation on the protection scope of the present utility model. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A touch display panel, characterized in that: The touch display panel includes a display area and a frame area, wherein the frame area includes a first sub-frame area and a second sub-frame area, and the first sub-frame area and the second sub-frame area are arranged along a first direction; and the touch display panel further includes: An array substrate; a color filter substrate, the color filter substrate being located at one side of the array substrate, the color filter substrate being provided with a special-shaped portion, and a vertical projection of the special-shaped portion of the color filter substrate on the array substrate partially overlapping with the array substrate in the second sub-frame area; A touch layer, the touch layer is located on a side of the color filter substrate away from the array substrate; Wherein, a touch pad is arranged on the special-shaped portion, and the touch pad is connected to the touch layer via the first sub-frame area.

2. The touch display panel according to claim 1, characterized in that: Along the first direction, the edge of the special-shaped portion coincides with the edge of the array substrate; The plurality of touch pads are arranged along a second direction, wherein the first direction intersects with the second direction and is perpendicular to a thickness direction of the array substrate.

3. The touch display panel according to claim 1, characterized in that: In the second sub-frame area, a chip reserved area is provided on the array substrate at the non-overlapping portion of the irregularly shaped portion and the array substrate, and the chip reserved area is located between vertical projections of two adjacent irregularly shaped portions on the array substrate.

4. The touch display panel according to claim 3, characterized in that: The number of the chip reserved area is one, and the touch pads are arranged on the special-shaped portions on both sides of the chip reserved area; Among them, the touch pad includes a first touch pad and a second touch pad, the touch pad on the special-shaped portion on one side of the chip reserved area includes a part of the first touch pad and a part of the second touch pad, and the touch pad on the special-shaped portion on the other side of the chip reserved area includes another part of the first touch pad and another part of the second touch pad.

5. The touch display panel according to claim 4, characterized in that: Along the first direction, the shortest distance between an edge of the display area close to the first sub-frame area and an edge of the first sub-frame area close to the second sub-frame area is between 0.75 mm and 1.45 mm.

6. The touch display panel according to claim 3, characterized in that: There are multiple chip reserved areas, and the touch pad is arranged on the special-shaped portion between two adjacent chip reserved areas close to the central area of ​​the second sub-frame area; The touch pads include first touch pads and second touch pads, and the touch pads on the special-shaped portion include all of the first touch pads and all of the second touch pads.

7. The touch display panel according to claim 6, characterized in that: Along the first direction, the shortest distance between an edge of the display area close to the first sub-frame area and an edge of the first sub-frame area close to the second sub-frame area is no more than 2.25 mm.

8. The touch display panel according to any one of claims 1 to 7, characterized in that: The touch layer includes a touch electrode layer and a touch wiring layer, the touch electrode layer is connected to the touch wiring layer, and the touch wiring layer is correspondingly connected to the touch pad; wherein the vertical projection of the touch electrode layer on the array substrate covers the vertical projection of the display area on the array substrate.

9. The touch display panel according to claim 8, characterized in that: The touch electrode layer comprises a first touch electrode layer and a second touch electrode layer, wherein the second touch electrode layer is located at a side of the first touch electrode layer away from the array substrate; The touch routing layer includes a first touch routing and a second touch routing arranged in different layers, the first touch routing is connected to the first touch electrode layer via the first sub-frame area, and the second touch routing is connected to the second touch electrode layer via the first sub-frame area.

10. A display device, characterized in that: It comprises a touch display panel as described in any one of claims 1 to 9.

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