Touch display panel and touch display device

Abstract

The application discloses a touch display panel and a touch display device. The touch display panel comprises a substrate, a first supporting structure, a first touch wire and a second touch wire. The first touch wire comprises a first wire part and a second wire part. In the plane of the substrate, the first wire part comprises a first projection part, the second wire part comprises a second projection part, and the first supporting structure comprises a first projection supporting structure. In the first direction, the first projection part overlaps the first projection supporting structure, and at least part of the second projection part does not overlap the first projection supporting structure. In the second direction, the first projection part does not overlap the first projection supporting structure, at least part of the second projection part overlaps the first projection supporting structure, and at least part of the second projection part is located on the side of the straight line where the first projection part is away from the center of the first projection supporting structure. The application is beneficial to avoiding the problem of broken touch wire and improving the reliability of the touch display panel.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the technical field of display, and in particular, to a touch display panel and a touch display device. BACKGROUND

[0002] With the development of science and technology, the field of touch panel has also made great progress, and people's requirements for touch panel are also increasing day by day. The touch display panel includes touch wires and touch electrodes, the touch wires are connected with the touch electrodes, thereby providing touch signals for the touch electrodes. The preparation effect of the touch wires affects the transmission of the touch signals, thereby affecting the touch performance of the touch display panel. Improving the preparation effect of the touch wires and avoiding the problem of broken touch wires are important problems in the manufacturing process of the touch display panel. SUMMARY

[0003] The present application provides a touch display panel and a touch display device to reduce or avoid the problem of broken touch wires, ensure the touch effect, and improve the reliability of the touch display panel.

[0004] In a first aspect, embodiments of the present application provide a touch display panel, comprising a substrate, a plurality of support structures located on one side of the substrate, and a plurality of touch wires located on a side of the support structures away from the substrate; the plurality of touch wires extend along a first direction and are arranged along a second direction, the first direction and the second direction intersect and are both parallel to the plane where the substrate is located;

[0005] The plurality of touch wires includes a first touch wire, the first touch wire includes a first wire part and a second wire part arranged along the first direction, the first wire part extends along the first direction; the orthographic projection of the first wire part on the plane where the substrate is located includes a first projection part, and the orthographic projection of the second wire part on the plane where the substrate is located includes a second projection part;

[0006] The plurality of support structures includes a first support structure, the orthographic projection of the first support structure on the plane where the substrate is located includes a first projection support structure;

[0007] Along the first direction, the first projection part overlaps with the first projection support structure, and at least part of the second projection part does not overlap with the first projection support structure; along the second direction, the first projection part does not overlap with the first projection support structure, and at least part of the second projection part overlaps with the first projection support structure;

[0008] Along the second direction, at least part of the second projection part is located on a side of the straight line where the first projection part is located away from the center of the first projection support structure.

[0009] In a second aspect, the embodiments of the present application provide a touch display device, comprising the display panel of the first aspect of the present application.

[0010] In the embodiments of the present application, the second wire part of the first touch wire close to the first support structure is wound in the area corresponding to the first support structure, the first touch wire can avoid the area above the first support structure, so that the first touch wire and the first support structure do not overlap in the orthogonal projection in the plane direction of the substrate. Thus, the abnormality of the touch wire caused by the existence of evaporation foreign matter in the area above the first support structure is avoided, the disconnection of the touch wire and other bad problems are avoided, the normal transmission of the touch signal is ensured, the touch effect is improved, and the reliability of the touch display panel is improved. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 A structure schematic diagram of a display panel in a related technology is provided for the embodiments of the present application;

[0012] Figure 2 A structure schematic diagram of a touch display panel is provided for the embodiments of the present application;

[0013] Figure 3 A structure schematic diagram of another touch display panel is provided for the embodiments of the present application;

[0014] Figure 4 A partial enlarged structure schematic diagram of a touch display panel is provided for the embodiments of the present application;

[0015] Figure 5 A cross-sectional structure schematic diagram of a touch display panel is provided for the embodiments of the present application;

[0016] Figure 6 A partial structure schematic diagram of another touch display panel is provided for the embodiments of the present application;

[0017] Figure 7 A partial structure schematic diagram of another touch display panel is provided for the embodiments of the present application;

[0018] Figure 8 A partial structure schematic diagram of another touch display panel is provided for the embodiments of the present application;

[0019] Figure 9 A partial structure schematic diagram of another touch display panel is provided for the embodiments of the present application;

[0020] Figure 10 A partial structure schematic diagram of another touch display panel is provided for the embodiments of the present application;

[0021] Figure 11A partial structure schematic diagram of still another touch display panel provided by an embodiment of the present application is shown in FIG. 6;

[0022] Figure 12 A partial structure schematic diagram of still another touch display panel provided by an embodiment of the present application is shown in FIG. 6;

[0023] Figure 13 For Figure 12 A cross-sectional structure schematic diagram along the direction of A-A' is shown in FIG. 4;

[0024] Figure 14 A partial structure schematic diagram of still another touch display panel provided by an embodiment of the present application is shown in FIG. 6;

[0025] Figure 15 A structure schematic diagram of a touch display device provided by an embodiment of the present application is shown in FIG. 7. DETAILED DESCRIPTION

[0026] The present application will be further described below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, for the convenience of description, only the parts related to the present application are shown in the drawings, but not all the structures.

[0027] It should be noted that the "have", "contain", "include" and the like described in the present application are all open meanings, i.e., when describing a module "having", "containing" or "including" a first element, a second element and / or a third element, it means that the module includes other elements in addition to the first element, the second element and / or the third element. In addition, the ordinal numbers "first", "second" and "third" in the present application are not intended to limit the specific order, but only to distinguish the parts. In the present application, when describing that layer A and layer B are "disposed in the same layer", it means that layer A and layer B are made of the same material and by the same process.

[0028] A support column 20' is generally provided in the touch display panel, for the liquid crystal touch display panel, the support column 20' can play a role of supporting the array substrate and the mask substrate; for the organic light emitting diode touch display panel, the support column 20' can play a role of supporting the display panel and supporting the evaporation mask. The touch wire 30' is generally provided on the side of the support column 20' away from the substrate 10'. Figure 1 A structure schematic diagram of a display panel in a related art provided by an embodiment of the present application is shown in FIG. 8, which can be referred to Figure 1In the related art, part of the touch control wires 30' are arranged above the support column 20', that is, the orthographic projection of the touch control wires 30' on the plane of the substrate 10' overlaps with the orthographic projection of the support column 20' on the plane of the substrate 10'. The inventor finds that, in this arrangement, the evaporation foreign matter above the support column 20' can cause the touch control wires 30' to be abnormal, thereby causing the signal transmission of this part of the touch control wires 30' to be abnormal, affecting the touch control effect, and reducing the reliability of the display panel.

[0029] Based on the defects of the above-mentioned related art, the present application provides a touch display panel, which comprises a substrate, a plurality of support structures located on one side of the substrate, and a plurality of touch control wires located on the side of the support structures away from the substrate; the plurality of touch control wires extend along a first direction and are arranged along a second direction, the first direction and the second direction intersect and are both parallel to the plane of the substrate;

[0030] The plurality of touch control wires comprise a first touch control wire, the first touch control wire comprises a first wire part and a second wire part arranged along the first direction, the first wire part extends along the first direction; the orthographic projection of the first wire part on the plane of the substrate comprises a first projection part, and the orthographic projection of the second wire part on the plane of the substrate comprises a second projection part;

[0031] The plurality of support structures comprise a first support structure, the orthographic projection of the first support structure on the plane of the substrate comprises a first projection support structure;

[0032] Along the first direction, the first projection part overlaps with the first projection support structure, and at least part of the second projection part does not overlap with the first projection support structure; along the second direction, the first projection part does not overlap with the first projection support structure, and at least part of the second projection part overlaps with the first projection support structure;

[0033] Along the second direction, at least part of the second projection part is located on the side of the straight line of the first projection part away from the center of the first projection support structure.

[0034] In the embodiment of the present application, the second wire part of the first touch control wire close to the first support structure is arranged to be wound in the area corresponding to the first support structure, the first touch control wire can avoid the area above the first support structure, so that the orthographic projection of the first touch control wire and the first support structure on the plane of the substrate does not overlap. Thus, the evaporation foreign matter in the area above the first support structure can be avoided to cause the touch control wire to be abnormal, and the problem of broken wire of the touch control wire can be avoided, the normal transmission of the touch control signal is ensured, the touch control effect is improved, and the reliability of the touch display panel is improved.

[0035] The above is the core idea of the present application. The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0036] Figure 2 A structural schematic diagram of a touch display panel provided by an embodiment of the present application is shown in Figure 3 A structural schematic diagram of another touch display panel provided by an embodiment of the present application is shown in Figure 4 A partial enlarged structural schematic diagram of a touch display panel provided by an embodiment of the present application is shown in Figure 5 A cross-sectional structural schematic diagram of a touch display panel provided by an embodiment of the present application is shown in Figures 2-5 In an embodiment of the present application, the touch display panel includes a substrate 10, a plurality of support structures 20 located on one side of the substrate 10, and a plurality of touch wires 30 located on a side of the support structures 20 away from the substrate 10; the plurality of touch wires 30 extend along a first direction X and are arranged along a second direction Y, the first direction X and the second direction Y intersect and are both parallel to the plane in which the substrate 10 lies; the plurality of touch wires 30 include a first touch wire 301, the first touch wire 301 includes a first wire part 3011 and a second wire part 3012 arranged along the first direction X, the first wire part 3011 extends along the first direction X; the orthographic projection of the first wire part 3011 on the plane of the substrate 10 includes a first projection part 3013, and the orthographic projection of the second wire part 3012 on the plane of the substrate 10 includes a second projection part 3014; the plurality of support structures 20 include a first support structure 201, the orthographic projection of the first support structure 201 on the plane of the substrate 10 includes a first projection support structure 202; along the first direction X, the first projection part 3013 overlaps the first projection support structure 202, and at least part of the second projection part 3014 does not overlap the first projection support structure 202; along the second direction Y, the first projection part 3013 does not overlap the first projection support structure 202, and at least part of the second projection part 3014 overlaps the first projection support structure 202; along the second direction Y, at least part of the second projection part 3014 is located on a side of the straight line on which the first projection part 3013 lies away from the center of the first projection support structure 202.

[0037] As shown in Figures 2-5 To realize the touch function of the touch display panel, a touch electrode 40 and a touch wire 30 connected with the touch electrode 40 are arranged in the touch display panel, and the touch wire 30 transmits a touch signal to the touch electrode 40. The touch wire 30 and the touch electrode 40 are located on one side of the substrate 10, and the substrate 10 can be a flexible substrate or a rigid substrate, which is not limited in the embodiments of the present application.

[0038] The touch display panel can be a liquid crystal display panel or an organic light emitting diode display panel. In the embodiments of the present application, the organic light emitting diode display panel is taken as an example for illustration, but the present application is not limited thereto. In the case of the organic light emitting diode display panel, the substrate 10 can be provided with a driving circuit layer 50, a light emitting element layer 60 and a touch layer on one side thereof. The driving circuit layer 50 includes a plurality of driving circuits 501, the light emitting element layer 60 includes a plurality of light emitting elements 601, and the driving circuits 501 are connected to the light emitting elements 601 in correspondence to drive the light emitting elements 601 to emit light. The touch layer can include a touch electrode 40 and a touch trace 30.

[0039] For example, the driving circuit layer 50 away from the substrate 10 includes a plurality of anodes 602 and a pixel definition layer 70, the pixel definition layer 70 includes a plurality of openings, and the anodes 602 are exposed at the openings to define a plurality of pixel setting areas. The driving circuit layer 50 is connected to the anodes 602 of the light emitting elements. The light emitting element layer 60 can include the anodes 602, an organic functional layer 603 and a cathode (not shown in the figure), the organic functional layer 603 is located in the openings, and the cathode is located on the side of the organic functional layer 603 away from the anodes 602. The anodes 602, the organic functional layer 603 and the cathode in one pixel setting area constitute one light emitting element 601. The light emitting element layer 60 and the touch layer can be separated by a first encapsulation layer 80, and the first encapsulation layer 80 can include an organic encapsulation layer and / or an inorganic encapsulation layer. The side of the touch layer away from the first encapsulation layer 80 can be provided with a color resistance layer 90 and a second encapsulation layer 100, and the second encapsulation layer 100 can include an optical adhesive layer and the like. Of course, the above-mentioned film layer design scheme is only an example, and in the actual application process, the film layer position can be exchanged, added or removed by the person skilled in the art according to the actual needs.

[0040] Optionally, the support structure 20 can be located on the side of the pixel definition layer 70 away from the driving circuit layer 50, i.e. between the driving circuit layer 50 and the touch layer, and the support structure 20 can be used to support the evaporation mask, support and fix the structure in the touch display panel.

[0041] The touch display panel in the embodiments of the present application can be a self-capacitive touch display panel (as shown in FIG. 1) or a mutual-capacitive touch display panel (as shown in FIG. 2). Figure 3 Figure 2 ​The self-capacitive touch display panel is usually composed of a plurality of arrayed touch electrode blocks 40 (i.e. the touch electrode 40 in the present application), each of which can form a self-capacitance with the ground, and the external capacitance formed by the finger contact will change the self-capacitance between the touch electrode block 40 and the ground, thereby detecting the specific position of the touch point. The mutual-capacitive touch display panel is usually composed of a sensing electrode 401 and a driving electrode 402 (both of which can be the touch electrode 40 in the present application), and a mutual-capacitance will be formed between the driving electrode 402 and the sensing electrode 401, and the external capacitance formed by the finger contact will change the mutual-capacitance between the two electrodes, thereby detecting the specific position of the touch point.

[0042] As shown in Figure 2 and Figure 3 , the touch display panel further comprises a display area AA and a non-display area NA, and the touch wire 30 is located in the display area AA or in the non-display area NA; the touch display panel further comprises a touch electrode 40 located in the display area AA, and the touch electrode 40 is electrically connected with the touch wire 30.

[0043] The non-display area NA surrounds at least part of the display area AA, the display area AA is used for image display, and sub-pixels and signal lines (not shown in the figure) are arranged in the display area AA, and the touch electrode 40 is arranged in the display area AA; the non-display area NA is a frame area, and no image display is performed, and peripheral wires (not shown in the figure) and peripheral driving circuits are arranged in the non-display area NA. For the mutual-capacitive touch display panel as shown in Figure 2 , the touch electrode 40 in the display area AA is led out through the touch wire 30 in the non-display area NA and is electrically connected with the touch driving module 110 (such as a touch driving chip). For the self-capacitive touch display panel as shown in Figure 3 , the touch electrode 40 in the display area AA is led out through the touch wire 30 in the display area AA and is electrically connected with the touch driving module 110.

[0044] Further, with reference to Figures 2-4 , the touch wire 30 can extend along a first direction X and arrange along a second direction Y. It should be noted that the first direction X and the second direction Y do not refer to fixed directions, the first direction X represents the extension direction of the touch wire 30, and the second direction Y represents the arrangement direction of the touch wire 30. In different areas of the display panel, the first direction X can be different, and the second direction Y can be different. For example, in the left and right frames of the touch display panel as shown in Figure 2 , the first direction X can be the column direction, and the second direction Y can be the row direction; in the lower frame of the touch display panel as shown in Figure 2 , the first direction X can be the row direction, and the second direction Y can be the column direction; in the upper frame of the touch display panel as shown in Figure 3In the display area AA of the illustrated touch display panel, the first direction X can be the column direction, and the second direction Y can be the row direction. Figure 4 The illustrated partial enlarged structural schematic diagram can represent a schematic diagram of the arrangement of the touch wires 30 in the lower frame of the mutual-capacitance touch display panel, so as to Figure 4 In the illustrated orientation, the first direction X can be the row direction, and the second direction Y can be the column direction.

[0045] With continued reference to Figures 2-5 The support structure 20 includes a first support structure 201, and a projection of the first support structure 201 on the plane of the substrate 10 is a first projected support structure 202. The touch wires 30 include a first touch wire 301, which can refer to a portion of the touch wires 30 close to the first support structure 201. The first touch wire 301 can be used to transmit TX or RX signals. The first touch wire 301 includes a first wire section 3011 and a second wire section 3012, which are arranged along the extension direction of the first touch wire 301 and are electrically connected, and the second wire section 3012 can be connected between two first wire sections 3011. The extension direction of the first wire section 3011 is the same as the extension direction of the first touch wire 301 as a whole. A projection of the first wire section 3011 on the plane of the substrate 10 is a first projected section 3013, and a projection of the second wire section 3012 on the plane of the substrate 10 is a second projected section 3014. Figure 4 The structure illustrated in the middle can be regarded as the structure body or as a projection thereof on the plane of the substrate.

[0046] In the first direction X, the first projected support structure 202 overlaps the first projected section 3013 and does not overlap at least part of the second projected section 3014, and in the second direction Y, the first projected support structure 202 does not overlap the first projected section 3013 and overlaps at least part of the second projected section 3014. Among the connected first projected section 3013 and second projected section 3014, the second projected section 3014 is located on the side of the straight line on which the first projected section 3013 is located, away from the center of the first projected support structure 202. In simple terms, the second projected section 3014 close to the first projected support structure 202 and overlapping the same in the second direction Y surrounds the periphery of the first projected support structure 202. Figure 4 The dashed line at the first projected section 3013 in the middle is a straight line on which the first projected section 3013 is located.

[0047] Thus, the portion of the first touch trace 301 closest to the first support structure 201 (i.e., the second trace portion 3012) is wound around the corresponding area of ​​the first support structure 201. The first touch trace 301 avoids the area above the first support structure 201 (the side away from the substrate 10), ensuring that the orthographic projections of the first touch trace 301 and the first support structure 201 in the plane of the substrate 10 do not overlap. Since no touch trace 30 is laid in the area above the first support structure 201, even if there are vapor-deposited foreign objects above the support structure 20, it will not affect the laying effect of the touch trace 30. This reduces or avoids problems such as broken touch traces, ensures normal transmission of touch signals, improves touch performance, and enhances the reliability of the touch display panel.

[0048] It should be noted that the starting point of the second wiring portion 3012 is the endpoint of the first wiring portion 3011. Along the first direction X, the portion of the second wiring portion 3012 near the starting point will still overlap with the first projection support structure 202. Therefore, in this embodiment of the invention, it is specified that along the first direction X, at least a portion of the second projection portion 3014 does not overlap with the first support projection structure.

[0049] Optionally, embodiments of the present invention do not limit the winding shape of the second wiring portion 3012, that is, the shape of the second projection portion 3014. Figure 4 The second routing portion 3012 is in the shape of a trapezoidal broken line, but it is not limited to this. In embodiments not shown in this invention, the second routing portion 3012 may also be arc-shaped or any broken line shape. For Figure 4 The second wiring portion 3012 shown in the figure has a winding shape. The second wiring portion 3012 may include a first sub-portion 30121, a second sub-portion 30122, and a third sub-portion 30123 arranged and electrically connected along a first direction X. The second sub-portion 30122 is connected between the first sub-portion 30121 and the third sub-portion 30123. Along the second direction Y, the first projection support structure 202 covers the second sub-portion 30122. The first end of the first sub-portion 30121 is connected to the first wiring portion 3011, and the second end of the first sub-portion 30121 is connected to the first end of the second sub-portion 30122. The second end of the second sub-portion 30122 is connected to the first end of the third sub-portion 30123, and the third sub-portion 30123 is electrically connected to the first wiring portion 3011 located on the other side of the first support projection structure along the first direction X. The extension direction of the first sub-part 30121 intersects both the first direction X and the second direction Y. The second sub-part 30122 extends along the first direction X. The extension direction of the third sub-part 30123 intersects both the first direction X and the second direction Y.

[0050] The second projection part 3014 needs to be paid attention to when winding. The second projection part 3014 should be wound to the side away from the center of the first projection support structure 202 along the straight line where the first projection part 3013 is located. That is, when the first touch wire 301 is wound at the first support structure 201, the first touch wire 301 is wound to the side of the edge of the first support structure 201 closer to the first touch wire 301 along the first direction X, or in other words, along the second direction Y, the second projection part 3014 protrudes to the side away from the center of the first projection support structure 202 along the straight line where the first projection part 3013 is located. For example, as shown in Figure 4 When there are two first projection parts 3013 overlapping with the same first projection support structure 202 along the first direction X, the second projection part 3014 connected to the first projection part 3013 close to the upper edge of the first projection support structure 202 can be wound from above the first projection support structure 202, and the second projection part 3014 connected to the first projection part 3013 close to the lower edge of the first projection support structure 202 can be wound from below the first projection support structure 202. Thus, the winding difficulty of the second wire part 3012 is reduced. Of course, in other embodiments, the same first projection support structure 202 can overlap with one or more first projection parts 3013 along the first direction X. At this time, a suitable winding method can be designed according to the distance between the first projection part 3013 and the center of the first projection support structure 202. The embodiments of the present application will not be described in detail.

[0051] In the embodiments of the present application, the part of the first touch wire 301 close to the first support structure 201 (i.e., the second wire part 3012) is wound in the area corresponding to the first support structure 201. The first touch wire 301 avoids the area corresponding to the first support structure 201, so that the first touch wire 301 and the first support structure 201 do not overlap in the orthogonal projection in the plane direction of the substrate 10. The abnormality of the touch wire 30 caused by the existence of evaporation foreign matter above the first support structure 2011 can be avoided, and the problem of disconnection of the touch wire 30 can be avoided. The normal transmission of the touch signal is ensured, the touch effect is improved, and the reliability of the touch display panel is improved.

[0052] Optionally, the above description can be continued with reference to Figure 4In a possible embodiment, the first touch wire 301 further comprises a third wire part 3015, the first wire part 3011, the second wire part 3012 and the third wire part 3015 are arranged along the first direction X; the third wire part 3015 comprises a third projection part 3016 in the orthographic projection of the substrate 10; the plurality of support structures 20 further comprises a second support structure 203, the first support structure 201 and the second support structure 203 are staggered along the first direction X and the second direction Y; the second support structure 203 comprises a second projection support structure 204 in the orthographic projection of the substrate 10; at least part of the third projection part 3016 is overlapped with the second projection support structure 204 along the second direction Y, and at least part of the third projection part 3016 is located on a side of the straight line of the first projection part 3013 away from the center of the second projection support structure 204.

[0053] As shown in Figure 4 , the first touch wire 301 further comprises a third wire part 3015, the third wire part 3015 comprises a third projection part 3016 in the orthographic projection of the substrate 10. The support structure 20 further comprises a second support structure 203, the second support structure 203 is in the same layer with the first support structure 201, and the two are staggered along the first direction X and the second direction Y. The staggered arrangement can make the distribution of the support structure 20 in the display panel more uniform, and improve the supporting effect of the support structure 20. The second support structure 203 comprises a second projection support structure 204 in the orthographic projection of the substrate 10, and the second projection support structure 204 is not overlapped with the first projection support structure 202 along the first direction X and the second direction Y.

[0054] Wherein, referring to Figure 4 , the second projection support structure 204 is overlapped with at least part of the third projection part 3016 along the second direction Y, the second projection support structure 204 and the third projection part 3016 are located on the same side of the first projection support structure 202 along the first direction X, and the orthographic projection of the third wire part 3015 on the substrate 10 is not overlapped with the support structure 20. Figure 4 It is exemplarily shown that the second projection support structure 204 is located above and left of the first projection support structure 202, and the third projection part 3016 is located on the left side of the first projection support structure 202, which is not limited thereto.

[0055] It should be noted that in the embodiments of the present application, the first support structure 201 and the second support structure 203 do not refer to specific support structures 20, and any two support structures 20 staggered along the first direction X and the second direction Y can be the first support structure 201 and the second support structure 203. As shown in Figure 4As shown, when the right lower support structure 20 is regarded as the first support structure 201, the left upper support structure 20 is regarded as the second support structure 203; when the left upper support structure 20 is regarded as the first support structure 201, the right lower support structure 20 is regarded as the second support structure 203.

[0056] It can be understood that the first touch control wire 301 can also be wound in the region corresponding to the second support structure 203 to avoid the region above the second support structure 203. For example, along the first direction X, at least one first projection part 3013 of the first touch control wire 301 overlaps the second projection support structure 204, and at least part of the second projection part 3014 does not overlap the second projection support structure 204; along the second direction Y, the first projection part 3013 does not overlap the second projection support structure 204, and at least part of the second projection part 3014 overlaps the second projection support structure 204. That is, there is at least one second projection part 3014 around the second projection support structure 204, which protrudes away from the center of the second projection support structure 204 on the side of the straight line where the first projection part 3013 is located (that is, on the side of the second projection support structure 204 facing the first projection support structure 202 along the second direction Y).

[0057] Continuing to refer to Figure 6 , along the first direction X, the third projection part 3016 corresponding to the first projection support structure 202 overlaps the second projection part 3014 wound around the second projection support structure 204. Since the second projection part 3014 wound around the second projection support structure 204 protrudes away from the center of the second projection support structure 204 on the side of the straight line where the first projection part 3013 is located, in this embodiment, at least part of the third projection part 3016 is located on the side of the straight line where the first projection part 3013 is located away from the center of the second projection support structure 204, and the third projection part 3016 corresponding to the first projection support structure 202 also protrudes away from the side of the second projection support structure 204 on the straight line where the first projection part 3013 is located. In this way, the same first touch control wire 301 includes at least two winding parts (the second winding part 3012 and the third winding part 3015), the winding parts of different first touch control wires 301 are arranged in the second direction Y, and the protruding directions of at least part of the winding parts projected between the first projection support structure 202 and the second projection support structure 204 in the second direction Y are consistent, which is beneficial to improve the uniformity of the winding distribution of the first touch control wire 301, thereby ensuring the impedance consistency of the touch control wire 30 and the display uniformity.

[0058] Figure 6 Another partial structure schematic diagram of a touch display panel provided by an embodiment of the present application is shown in FIG. 6. Figure 4In the shown embodiment, the first support structure 201 and the second support structure 203 are arranged in the same way as Figure 4 the shown embodiment, which will not be repeated here. Different from the shown embodiment, in the present embodiment, Figure 6 the first touch control wire 301 is arranged in the same way as Figure 4 the shown embodiment, which will not be repeated here. Different from the shown embodiment, in the present embodiment, the first touch control wire 301 is arranged in the same way as

[0059] the shown embodiment, which will not be repeated here. Different from the shown embodiment, in the present embodiment, Figure 4 the first projection portion 3013 is located between the center of the first projection support structure 202 and the center of the second projection support structure 204 along the second direction Y; the second projection portion 3014 and the third projection portion 3016 are arranged in opposite directions relative to the first projection portion 3013.

[0060] The first support structure 201 and the second support structure 203 that are close to each other along the first direction X (or the second direction Y) can be defined as a support structure group. As Figure 4 shown, for the same support structure group, the first projection portion 3013 that overlaps with the first projection support structure 202 along the first direction X includes a first sub-projection portion 30131. Along the second direction Y, the first sub-projection portion 30131 is located between the center of the first projection support structure 202 and the center of the second projection support structure 203. The second projection portion 3014 and the third projection portion 3016 corresponding to this part of the first touch control wire 301 are arranged in opposite directions.

[0061] Exemplarily, as Figure 4The first support structure 201 (the first projection support structure 202) is located in the lower right corner, and the second support structure 203 (the second projection support structure 204) is located in the upper left corner. The second projection section 3014 connected to the first sub-projection section 30131 close to the first projection support structure 202 protrudes to the side close to the second projection support structure 204 (i.e. the side of the straight line where the first sub-projection section 30131 is located away from the center of the first projection support structure 202), and the third projection section 3016 connected to the second projection section 3014 protrudes to the side away from the second projection support structure 204 (i.e. the side of the straight line where the first sub-projection section 30131 is located towards the center of the first projection support structure 202). The second projection section 3014 connected to the first sub-projection section 30131 close to the second projection support structure 204 protrudes to the side close to the first projection support structure 202 (i.e. the side of the straight line where the first sub-projection section 30131 is located away from the center of the second projection support structure 204), and the third projection section 3016 connected to the second projection section 3014 protrudes to the side away from the first projection support structure 202 (i.e. the side of the straight line where the first sub-projection section 30131 is located towards the center of the second projection support structure 204). In this arrangement, along the second direction Y, the protruding directions of the second projection section 3014 and the third projection section 3016 overlapping in the first direction X between the first projection support structure 202 and the second projection support structure 204 are the same, and the winding mode of the first touch control wire 301 in this part is the same, and the impedance is consistent.

[0062] Optionally, the first projection section 3013 can be continued to refer to Figure 4 , along the second direction Y, the straight line where the first projection section 3013 is located is located on the same side of the center of the first projection support structure 202 and the center of the second projection support structure 204; the protruding direction of the second projection section 3014 relative to the straight line where the first projection section 3013 is located is the same as the protruding direction of the third projection section 3016 relative to the straight line where the first projection section 3013 is located.

[0063] As shown in Figure 4 , for the same support structure group, the first projection section 3013 overlapping the first projection support structure 202 in the first direction X includes the second sub-projection section 30132. Along the second direction Y, the straight line where the second sub-projection section 30132 is located is located on the same side of the center of the first projection support structure 202 and the center of the second projection support structure 204. The protruding directions of the second projection section 3014 and the third projection section 3016 corresponding to the first touch control wire 301 in this part are the same.

[0064] Exemplarily, as shown in Figure 4The first support structure 201 (the first projection support structure 202) is located in the lower right corner, and the second support structure 203 (the second projection support structure 204) is located in the upper left corner. The second projection section 3014 connected to the second sub-projection section 30132 close to the first projection support structure 202 protrudes to the side away from the second projection support structure 204 (i.e., the side away from the center of the first projection support structure 202 along the straight line where the second sub-projection section 30132 is located). The third projection section 3016 connected to the second projection section 3014 also protrudes to the side away from the second projection support structure 204. The second projection section 3014 connected to the second sub-projection section 30132 close to the second projection support structure 204 protrudes to the side away from the first projection support structure 202 (i.e., the side away from the center of the second projection support structure 204 along the straight line where the second sub-projection section 30132 is located). The third projection section 3016 connected to the second projection section 3014 protrudes to the side away from the first projection support structure 202. In this arrangement, the third projection section 3016 connected to the first sub-projection section 30131 and the third projection section 3016 connected to the second sub-projection section 30132 protrude in the same direction, which facilitates the layout of the third routing section 3015.

[0065] Optionally, the above description can be continued with reference to Figure 4 In possible embodiments, the plurality of touch control wires 30 further includes a second touch control wire 302, the second touch control wire 302 and the first touch control wire 301 are arranged along the second direction Y; the second touch control wire 302 includes a fourth wire section 3021 and a fifth wire section 3022 arranged along the first direction X, the fourth wire section 3021 extends along the first direction X; the orthogonal projection of the fourth wire section 3021 on the plane where the substrate 10 is located includes a fourth projection section 3023, and the orthogonal projection of the fifth wire section 3022 on the plane where the substrate 10 is located includes a fifth projection section 3024; along the first direction X, the fourth projection section 3023 and the fifth projection section 3024 are both non-overlapping with the first projection support structure 202; along the second direction Y, the fourth projection section 3023 is non-overlapping with the first projection support structure 202, and at least part of the fifth projection section 3024 is overlapping with the first projection support structure 202; along the second direction Y, at least part of the fifth projection section 3024 is located on the side away from the center of the first projection support structure 202 along the straight line where the fourth projection section 3023 is located.

[0066] As Figure 7As shown, the orthographic projection of the second touch wire 302 on the plane where the substrate 10 is located is on the side of the orthographic projection of the first touch wire 301 away from the first projection support structure 202. The second touch wire 302 and the first touch wire 301 can transmit the same or different touch signals. The second touch wire 302 can include a fourth wire section 3021 and a fifth wire section 3022; the fourth wire section 3021 and the fifth wire section 3022 are arranged along the extension direction of the second touch wire 302 and are electrically connected. The fourth wire section 3021 is arranged along the second direction Y with the first wire section 3011, and the fifth wire section 3022 is arranged along the second direction Y with the second wire section 3012. The orthographic projection of the fourth wire section 3021 on the plane where the substrate 10 is located is a fourth projection section 3023, and the orthographic projection of the fifth wire section 3022 on the plane where the substrate 10 is located is a fifth projection section 3024.

[0067] In the orthographic projection of the second touch wire 302 on the plane where the substrate 10 is located, the fourth projection section 3023 and the fifth projection section 3024 do not overlap with the first projection support structure 202 along the first direction X; along the second direction Y, the fourth projection section 3023 does not overlap with the first projection support structure 202, and at least part of the fifth projection section 3024 overlaps with the first projection support structure 202. Among the connected fourth projection section 3023 and fifth projection section 3024, the fifth projection section 3024 is located on the side of the straight line where the fourth projection section 3023 is located away from the center of the first projection support structure 202. In short, in the orthographic projection of the second touch wire 302 on the plane where the substrate 10 is located, the part (the fifth projection section 3024) overlapping with the first projection support structure 202 along the second direction Y is also wound, so as to ensure that the impedances of the touch wires 30 in different regions are consistent or similar, and to improve the touch signal transmission effect.

[0068] The winding shapes of the fourth wire section 3021 and the second wire section 3012 can be the same or different, and the embodiments of the present application do not limit this, and the figures take the same winding shape as an example, which is not limited in practice. For example, for the fourth wire section 3021 and the second wire section 3012, the winding shape of the fourth wire section 3021 can be a straight line, and the winding shape of the second wire section 3012 can be a meander line. Figure 7The fifth trace sub-portion 3022 can include a fourth sub-portion 30221, a fifth sub-portion 30222 and a sixth sub-portion 30223 arranged along the first direction X and electrically connected, the fifth sub-portion 30222 being connected between the fourth sub-portion 30221 and the sixth sub-portion 30223. Along the second direction Y, the first projection support structure 202 covers the fifth sub-portion 30222, a first end of the fourth sub-portion 30221 is connected with the fifth trace sub-portion 3021, and a second end of the fourth sub-portion 30221 is connected with a first end of the fifth sub-portion 30222; a second end of the fifth sub-portion 30222 is connected with a first end of the sixth sub-portion 30223, and the sixth sub-portion 30223 is electrically connected with the fifth trace sub-portion 3021 located on the other side along the first direction X. The fourth sub-portion 30221 extends in a direction intersecting both the first direction X and the second direction Y, the fifth sub-portion 30222 extends along the first direction X, and the sixth sub-portion 30223 extends in a direction intersecting both the first direction X and the second direction Y.

[0069] Figure 8 Another partial structure diagram of a touch display panel is provided in another embodiment of the present application, which can be referred to Figure 8 In other possible embodiments, the plurality of touch traces 30 further includes a fourth touch trace 304, the fourth touch trace 304 and the first touch trace 301 being arranged along the second direction Y; a normal projection of the fourth touch trace 304 on a plane where the substrate 10 is located includes an eighth projection sub-portion (a new reference sign is not used in the figure, and the eighth projection sub-portion is referred to as the fourth touch trace 304), along the first direction X, the eighth projection sub-portion does not overlap with both the first projection support structure 202 and the second projection support structure 204. The extension direction of each region of the eighth projection sub-portion is unchanged and extends along the first direction X. Since the projection of any position of the fourth touch trace 304 along the thickness direction of the touch display panel does not overlap with the projection of the support structure 20 at any position, the probability of the support structure 20 causing abnormality of the fourth touch trace 304 is small, and thus the fourth touch trace 304 can not be wound, thereby reducing the overall winding complexity of the touch traces 30.

[0070] Optionally, Figure 4 Another partial structure diagram of a touch display panel is provided in another embodiment of the present application, which can be referred to Figure 4In some embodiments, the second touch trace 302 includes a second touch trace 302a, the fourth trace portion 3021 includes a fourth trace portion 3021a located within the second touch trace 302a, the fifth trace portion 3022 includes a fifth trace portion 3022a located within the second touch trace 302a, and the orthographic projection of the fourth trace portion 3021a onto the plane of the substrate 10 includes the fourth trace projection portion (not referred to by new reference numerals in the figure, refer to the fourth trace). The orthographic projection of the fifth A trace portion 3022a onto the plane of the substrate 10 includes the fifth A projection portion (no new reference numerals are used in the figure, refer to the fifth A trace portion 3022a); the maximum distance between the lines containing the second projection portion 3014 and the first projection portion 3013 in the second direction Y is L1, and the maximum distance between the lines containing the fifth A projection portion and the fourth A projection portion in the second direction Y is L2; ​​wherein, |L1-L2| / L1≤20%.

[0071] Figure 9 The second touch traces 302 shown are all second A touch traces 302a. The second A touch trace 302a may include a fourth A trace portion 3021a (corresponding to the fourth trace portion 3021 described above) and a fifth A trace portion 3022a (corresponding to the fifth trace portion 3022 described above). The orthographic projection of the fourth A trace portion 3021a onto the plane of the substrate 10 is the fourth A projection portion, and the orthographic projection of the fifth A trace portion 3022a onto the plane of the substrate 10 is the fifth A projection portion. Along the second direction Y, the fifth A projection portion (fifth A trace portion 3022a) overlaps with the second projection portion 3014, and the fifth A projection portion is wound around the trace.

[0072] Furthermore, such as Figure 9 As shown, along the second direction Y, in the same first touch trace 301, the maximum distance L1 between the straight line containing the second projection portion 3014 and the first projection portion 3013 can be the distance between the straight line containing the second sub-portion 30122 and the first trace portion 3011. In the same second touch trace 302, the maximum distance along the second direction Y between the straight line containing the fifth A projection portion and the fourth A projection portion can be the distance between the straight line containing the fifth sub-portion 30222 and the fourth A trace portion 3021a.

[0073] In the embodiment, |L1-L2| / L1≤20% is defined, that is, the distance between the second sub-section 30122 and the straight line on which the first trace section 3011 is located is similar to or the same as the distance between the fifth sub-section 30222 and the straight line on which the fourth trace section 3021a is located, and the protruding degree of the second trace section 3012 in the second direction Y is similar to or the same as the protruding degree of the fifth trace section 3022a in the second direction Y. In this way, the consistency of the winding of the first touch trace 301 and the second touch trace 302 is improved.

[0074] Figure 9 Another partial structure schematic diagram of a touch display panel provided by the embodiment of the application can be referred to Figure 9 In some other possible embodiments, the second touch trace 302 includes a second sub-touch trace 302b, the fourth trace section 3021 includes a fourth sub-trace section 3021b in the second sub-touch trace 302b, the fifth trace section 3022 includes a fifth sub-trace section 3022b in the second sub-touch trace 302b, the fourth sub-trace section 3021b includes a fourth projection section in the orthographic projection of the substrate 10 on the plane, the fifth sub-trace section 3022b includes a fifth projection section in the orthographic projection of the substrate 10 on the plane, the maximum distance between the second projection section 3014 and the first projection section 3013 in the second direction Y is L1, and the maximum distance between the fifth projection section and the fourth projection section in the second direction Y is L3; wherein L1>L3.

[0075] Figure 8 The second touch trace 302 shown is the second sub-touch trace 302b, which can include the fourth sub-trace section 3021b (corresponding to the fourth trace section 3021 described above) and the fifth sub-trace section 3022b (corresponding to the fifth trace section 3022 described above). The fourth sub-trace section 3021b includes a fourth projection section in the orthographic projection of the substrate 10 on the plane, and the fifth sub-trace section 3022b includes a fifth projection section in the orthographic projection of the substrate 10 on the plane. Along the second direction Y, the fifth projection section (the fifth sub-trace section 3022b) overlaps the second projection section 3014, and the fifth projection section is wound.

[0076] Further, as Figure 9As shown, along the second direction Y, the maximum distance L1 between the second projection subpart 3014 and the straight line where the first projection subpart 3013 is located in the same first touch control wire 301 can be the distance between the fifth subpart 30222 and the fourth wire subpart 3021b.

[0077] In the embodiment, L1>L3, that is, the distance between the second subpart 30122 and the first wire subpart 3011 is greater than the distance between the fifth subpart 30222 and the fourth wire subpart 3021b, and the protruding degree of the second wire subpart 3012 along the second direction Y is greater than the protruding degree of the fifth wire subpart 3022b along the second direction Y. Since the orthographic projection of the second touch control wire 302 on the plane where the substrate 10 is located is far from the distance of the first projection support structure 202 along the second direction Y, the probability of the abnormality of the second touch control wire 302 caused by the first support structure 201 is small, the protruding degree of the second touch control wire 302 can be appropriately reduced, the problem of the impedance increase caused by the length increase of the second touch control wire 302 is improved, and the loss in the process of the touch signal transmission is reduced.

[0078] The specific values of L1, L2 and L3 are not limited in the embodiment, and can be designed according to the actual situation by those skilled in the art.

[0079] The above Figure 10 In the embodiment shown, the second touch control wire 302 is the second alpha touch control wire 302a, Figure 10 In the embodiment shown, the second touch control wire 302 is the second beta touch control wire 302b. In the embodiment not shown in the application, the second alpha touch control wire 302a and the second beta touch control wire 302b can be included in the touch display panel at the same time, the second alpha touch control wire 302a and the second beta touch control wire 302b are designed according to the above embodiment, and the first embodiment of the application will not be described in detail.

[0080] Further, Figure 10 Another partial structure schematic diagram of a touch display panel provided by the embodiment of the application can be referred to Figure 11The second touch trace 302 includes an i-th touch signal line 302i and a j-th touch signal line 302j arranged along the second direction Y. Along the second direction Y, the i-th touch signal line 302i is located on the side of the j-th touch signal line 302j closest to the first support structure 201; where i and j are both positive integers. The fourth trace portion 3021 includes a fourth i-th trace portion 3021i located in the i-th touch signal line 302i and a fourth j-th trace portion 3021j located in the j-th touch signal line 302j. The fifth trace portion 3022 includes a fifth i-th trace portion 3022i located in the i-th touch signal line 302i and a fifth j-th trace portion 3022j located in the j-th touch signal line 302j. The orthographic projection of the fourth i-th trace portion 3021i onto the plane of the substrate 10 includes the fourth i-th projection portion and the fourth j-th trace portion 3021i. The orthographic projection of 021j onto the plane of substrate 10 includes the fourth j projection portion; the orthographic projection of the fifth i routing portion 3022i onto the plane of substrate 10 includes the fifth i projection portion; the orthographic projection of the fifth j routing portion 3022j onto the plane of substrate 10 includes the fifth j projection portion; the fifth i projection portion includes the fifth projection position P5; the fifth j projection portion includes the sixth projection position P6; along the second direction Y, the fifth projection position P5 and the sixth projection position P6 overlap; the maximum distance between the lines containing the fifth i projection portion (the fifth i routing portion 3022i) and the fourth i projection portion (the fourth i routing portion 3021i) in the second direction Y is L4; the distance between the lines containing the fifth j projection portion (the fifth j routing portion 3022j) and the fourth j projection portion (the fourth j routing portion 3021j) in the second direction Y is L5; wherein, L4 > L5.

[0081] like Figure 11 As shown, the i-th touch signal line 302i and the j-th touch signal line 302j are two adjacent second touch traces 302. The orthographic projection of the j-th touch signal line 302j on the plane of the substrate 10 is located on the side of the orthographic projection of the i-th touch signal line 302i on the plane of the substrate 10 that is far away from the first projection support structure 202. That is, the distance between the orthographic projection of the j-th touch signal line 302j on the plane of the substrate 10 and the first projection support structure 202 is greater than the distance between the orthographic projection of the i-th touch signal line 302i on the plane of the substrate 10 and the first projection support structure 202.

[0082] The i-th touch signal line 302i and the j-th touch signal line 302j each include a fourth trace section 3021 and a fifth trace section 3022. The fourth trace section 3021 of the i-th touch signal line 302i is a fourth i trace section 3021i, the fifth trace section 3022 of the i-th touch signal line 302i is a fifth i trace section 3022i, the fourth trace section 3021 of the j-th touch signal line 302j is a fourth j trace section 3021j, and the fifth trace section 3022 of the j-th touch signal line 302j is a fifth j trace section 3022j. The fourth j trace section 3021j is located on a side of the fourth i trace section 3021i away from the first trace section 3011, and the fifth j trace section 3022j is located on a side of the fifth i trace section 3022i away from the second trace section 3012. The fourth i trace section 3021i has a fourth i projected section in a normal projection of the substrate 10, the fourth j trace section 3021j has a fourth j projected section in the normal projection of the substrate 10, the fifth i trace section 3022i has a fifth i projected section in the normal projection of the substrate 10, and the fifth j trace section 3022j has a fifth j projected section in the normal projection of the substrate 10.

[0083] The fifth projected position P5 of the fifth i projected section can be a normal projection position of a fifth sub-section 30222 of the fifth i trace section 3022i in the substrate 10, and the sixth projected position P6 of the fifth j projected section can be a normal projection position of a fifth sub-section 30222 of the fifth j trace section 3022j in the substrate 10. As described above, the fifth projected position P5 and the sixth projected position P6 overlap in the second direction Y. The maximum distance L4 between the fifth i projected section and the straight line on which the fourth i projected section lies in the second direction Y can be regarded as the distance between the fifth projected position P5 and the straight line on which the fourth i projected section lies (the distance between the fifth sub-section 30222 of the fifth i trace section 3022i and the straight line on which the fourth i trace section 3021i lies), and the maximum distance L5 between the fifth j projected section and the straight line on which the fourth j projected section lies in the second direction Y can be regarded as the distance between the sixth projected position P6 and the straight line on which the fourth j projected section lies (the distance between the fifth sub-section 30222 of the fifth j trace section 3022j and the straight line on which the fourth j trace section 3021j lies). The fifth projected position P5 and the sixth projected position P6 are shown as circular dots in the figure, which do not represent the actual shape of the projected positions.

[0084] In this embodiment, L4>L5, that is, in the second direction Y, the farther the fifth trace portion 3022 is from the first projection support structure 202, the smaller the convexity of the fifth trace portion 3022, or in the second direction Y, in the direction from the center of the first support structure 201 to the edge thereof, the convexity of the fifth trace portion 3022 gradually decreases. In this way, the winding uniformity of different second touch control traces 302 can be improved, and the problem of impedance increase due to the increase in the length of the second touch control trace 302 can be avoided to some extent.

[0085] Figure 11 Another partial structure schematic diagram of a touch display panel provided by an embodiment of the present application can be referred to Figure 11 In a possible embodiment, the first support structure 201 includes a first alpha support structure 205 and a first beta support structure 206, and the first alpha support structure 205 overlaps the first beta support structure 206 in the second direction Y; the orthographic projection of the first alpha support structure 205 on the plane where the substrate 10 is located includes a first alpha projection support structure 207, and the orthographic projection of the first beta support structure 206 on the plane where the substrate 10 is located includes a first beta projection support structure 208; the touch display panel further includes a first touch trace group 3001 and a second touch trace group 3002 located between the first alpha support structure 205 and the first beta support structure 206 in the second direction Y, the first touch trace group 3001 and the second touch trace group 3002 each include a plurality of second touch control traces 302, and the first touch trace group 3001 is located on the side of the second touch trace group 3002 close to the first alpha support structure 205; among the plurality of second touch control traces 302 included in the first touch trace group 3001, in the second direction Y, at least part of the fifth projection portion 3024 is located on the side of the straight line where the fourth projection portion 3023 is located away from the center of the first alpha projection support structure 207; and in the direction from the first alpha support structure 205 to the first beta support structure 206, the maximum distance between the straight line where the fifth projection portion 3024 is located and the straight line where the fourth projection portion 3023 is located gradually decreases; among the plurality of second touch control traces 302 included in the second touch trace group 3002, in the second direction Y, at least part of the fifth projection portion 3024 is located on the side of the straight line where the fourth projection portion 3023 is located away from the center of the first beta projection support structure 208; and in the direction from the first beta support structure 206 to the first alpha support structure 205, the maximum distance between the straight line where the fifth projection portion 3024 is located and the straight line where the fourth projection portion 3023 is located gradually decreases.

[0086] As Figure 11As shown, the touch display panel can include first a support structure 205 and first b support structure 206 arranged along the second direction Y. The first a support structure 205 has a first a projection support structure 207 in the plane of the substrate 10, and the first b support structure 206 has a first b projection support structure 208 in the plane of the substrate 10. Between the first a support structure 205 and the first b support structure 206 along the second direction Y, there are a first touch wire group 3001 and a second touch wire group 3002, and along the second direction Y, the first touch wire group 3001 and the second touch wire group 3002 are sequentially located between the first a support structure 205 and the first b support structure 206. The first touch wire group 3001 and the second touch wire group 3002 respectively include a plurality of second touch wires 302.

[0087] For the second touch wire 302 in the first touch wire group 3001, the fifth projection part 3024 (i.e. the winding area) of the second touch wire 302 protrudes to the side of the first b projection support structure 208 facing the first a projection support structure 207. For the second touch wire 302 in the second touch wire group 3002, the fifth projection part 3024 (i.e. the winding area) of the second touch wire 302 protrudes to the side of the first a projection support structure 207 facing the first b projection support structure 208. It can also be understood that the winding protruding direction of the second touch wire 302 in the first touch wire group 3001 is opposite to the winding protruding direction of the second touch wire 302 in the second touch wire group 3002.

[0088] Further, in the first touch wire group 3001, the maximum distance between the fifth projection part 3024 and the fourth projection part 3023 of each second touch wire 302 gradually decreases along the direction of the first a projection support structure 207 facing the first b projection support structure 208; in the second touch wire group 3002, the maximum distance between the fifth projection part 3024 and the fourth projection part 3023 of each second touch wire 302 gradually decreases along the direction of the first b projection support structure 208 facing the first a projection support structure 207. In other words, between two adjacent first support structures 201, the protruding degree of the fifth wire part 3022 of the plurality of second touch wires 302 gradually decreases along the direction of the adjacent first support structure 201 of the touch wire group facing the other first support structure 201. Thus, the problem of impedance increase due to the increase in the length of the second touch wire 302 is improved, which is beneficial to reduce the loss in the process of touch signal transmission.

[0089] Optionally, the number of second touch wires 302 in the first touch wire group 3001 and the second touch wire group 3002 can be the same or different, Figure 12The number of the second touch wires 302 is exemplarily shown as the same, but is not limited thereto. In addition, at least one first touch wire 301 is included in each of the first touch wire group 3001 and the second touch wire group 3002. In the same touch wire group, the first touch wire 301 is located between the second touch wire 302 and the corresponding first support structure 201 along the second direction Y.

[0090] With continuous reference to Figure 13 In some embodiments, a fourth touch wire 304 can also be included between the first touch wire group 3001 and the second touch wire group 3002, and the orthogonal projection of the fourth touch wire 304 on the plane where the substrate 10 is located includes an eighth projection part, which does not overlap with the first projection support structure 202 and the second projection support structure 204 along the first direction X. The extension direction of each region of the eighth projection part is unchanged, and each region extends along the first direction X. The fourth touch wire 304 does not have a winding part, and can serve as a transition wire between the first touch wire group 3001 and the second touch wire group 3002.

[0091] Figure 12 Another partial structure schematic diagram of a touch display panel provided by an embodiment of the present application is shown in Figure 12 For Figure 13 A cross-sectional structure schematic diagram along the A-A' direction is shown in Figure 12 and Figure 12 In possible embodiments, the plurality of touch wires 30 further include a third touch wire 303, which is located on the side of the first touch wire 301 close to the support structure 20; the third touch wire 303 includes a sixth wire part 3031 and a seventh wire part 3032 arranged along the first direction X, and the sixth wire part 3031 extends along the first direction X; the orthogonal projection of the sixth wire part 3031 on the plane where the substrate 10 is located includes a sixth projection part 3033, and the orthogonal projection of the seventh wire part 3032 on the plane where the substrate 10 is located includes a seventh projection part 3034; at least part of the seventh projection part 3034 is located on the side of the straight line where the sixth projection part 3033 is located away from the center of the first projection support structure 202; along the thickness direction of the touch display panel, the sixth wire part 3031 overlaps with the first wire part 3011; the maximum distance L1 between the straight line where the second projection part 3014 and the first projection part 3013 are located in the second direction Y, and the maximum distance L6 between the straight line where the seventh projection part 3034 and the sixth projection part 3033 are located in the second direction Y; wherein L6>L1.

[0092] In the above embodiments, the first touch wire 301, the second touch wire 302 and the fourth touch wire 304 are all arranged in the same layer. Figure 13In the embodiment shown, the touch wires 30 further include a third touch wire 303 arranged in a layer different from the first touch wire 301. As shown in Figure 12 and Figure 12 As shown, the layer in which the third touch wire 303 is located can be between the layer in which the first touch wire 301 is located and the layer in which the support structure 20 is located. In the thickness direction of the touch display panel, the distance from the layer in which the third touch wire 303 is located to the layer in which the support structure 20 is located is less than the distance from the layer in which the first touch wire 301 is located to the layer in which the support structure 20 is located. The third touch wire 303 and the first touch wire 301 can transmit the same or different touch signals. Figure 12 In the cross-sectional view shown, only some of the layers are shown, and all the layers of the touch display panel are not shown.

[0093] The third touch wire 303 includes a sixth wire portion 3031 and a seventh wire portion 3032, which are arranged along the extension direction of the third touch wire 303 and electrically connected. The orthogonal projection of the sixth wire portion 3031 on the plane in which the substrate 10 is located is a sixth projection portion 3033, and the orthogonal projection of the seventh wire portion 3032 on the plane in which the substrate 10 is located is a seventh projection portion 3034. Along the first direction X, the sixth projection portion 3033 overlaps the first projection support structure 202, and at least part of the seventh projection portion 3034 does not overlap the first projection support structure 202; along the second direction Y, the sixth projection portion 3033 does not overlap the first projection support structure 202, and at least part of the seventh projection portion 3034 overlaps the first projection support structure 202. Along the second direction Y, at least part of the seventh projection portion 3034 is located on the side of the straight line on which the sixth projection portion 3033 is located away from the center of the first projection support structure 202.

[0094] As shown in Figure 14 The wire arrangement of the sixth wire portion 3031 is the same as that of the first wire portion 3011, and along the thickness direction of the touch display panel, the sixth wire portion 3031 overlaps the first wire portion 3011. The wire arrangement of the seventh wire portion 3032 is the same as that of the second wire portion 3012, that is, the third touch wire 303 is routed at the seventh wire portion 3032 to avoid the first support structure 201 for the area, so as to avoid the first support structure 201 causing abnormality of the third touch wire 303.

[0095] Optionally, the shapes of the seventh wire portion 3032 and the second wire portion 3012 can be the same or different, Figure 14 Exemplarily, the shapes of the seventh wire portion 3032 and the second wire portion 3012 are the same.

[0096] In the embodiment, the maximum distance L1 of the straight line on which the second projection part 3014 and the first projection part 3013 are located in the second direction Y is less than the maximum distance L6 of the straight line on which the seventh projection part 3034 and the sixth projection part 3033 are located in the second direction Y, that is, the protruding degree of the seventh routing part 3032 in the second direction Y is greater than the protruding degree of the second routing part 3012 in the second direction Y. Since the distance between the third touch routing 303 and the first support structure 201 in the thickness direction of the touch display panel is relatively small, the first support structure 201 has a greater influence on the third touch routing 303, and thus the protruding degree of the winding part of the third touch routing 303 can be set to be greater, so as to ensure the normal layout of the third touch routing 303 and reduce the influence of the first support structure 201 on the touch routing 30.

[0097] Optionally, the third touch routing 303 can be electrically connected with the first touch routing 301, or the third touch routing 303 and the first touch routing 301 can be insulated.

[0098] In some embodiments, the third touch routing 303 and the first touch routing 301 can be in parallel, the third touch routing 303 and the first touch routing 301 transmit the same touch signal, and the parallel connection of the third touch routing 303 and the first touch routing 301 can reduce the impedance of the first touch routing 301, thereby reducing the loss of the touch signal in the transmission process.

[0099] In some other embodiments, the third touch routing 303 and the first touch routing 301 can be insulated, and the third touch routing 303 and the first touch routing 301 transmit different touch signals, for example, one of them transmits a TX signal and the other transmits an RX signal. In this arrangement, the number of touch routings 30 in each touch routing layer can be reduced, and the wiring difficulty can be reduced.

[0100] Optionally, Figure 14 Another partial structure schematic diagram of a touch display panel provided by the embodiment of the present application can be referred to Figure 14 The second projection part 3014 includes the first projection position P1 and the second projection position P2 which are arranged at will; the minimum distance between the first projection position P1 and the first projection support structure 202 is L7, and the minimum distance between the second projection position P2 and the first projection support structure 202 is L8; wherein |L7-L8| / L7≤20%.

[0101] The first projection position P1 and the second projection position P2 can be any position of the second projection part 3014, Figure 14The first projection position P1 is the middle position of the second projection section 3014 in the first direction X, and the second projection position P2 is the position of the second projection section 3014 close to the first projection section 3013. The actual position relationship is not limited to this. The minimum distance between the first projection position P1 and the first projection support structure 202 can be understood as the length of the shortest line between the first projection position P1 and the first projection support structure 202. The minimum distance between the second projection position P2 and the first projection support structure 202 can be understood as the length of the shortest line between the second projection position P2 and the first projection support structure 202.

[0102] In this embodiment, it is limited that |L7-L8| / L7≤20%, that is, the minimum distance between the first projection position P1 and the first projection support structure 202 is similar or equal to the minimum distance between the second projection position P2 and the first projection support structure 202. In this way, the minimum distances between different positions of the second projection section 3014 and the first projection support structure 202 are similar or the same. The winding of the second trace section 3012 in the corresponding area of the first support structure 201 is more uniform, which ensures that the winding section of the first touch trace 301 is not affected by the first support structure 201.

[0103] The specific values of L7 and L8 are not limited in this embodiment, and can be set according to actual conditions by those skilled in the art.

[0104] Further, with reference to Figure 15 , the first projection section 3013 includes an arbitrarily set third projection position P3, and the second projection section 3014 includes an arbitrarily set fourth projection position P4. The line width of the third projection position P3 is L9, and the line width of the fourth projection position P4 is L10. |L9-L10| / L9≤20%.

[0105] The third projection position P3 can be any position of the first projection section 3013, and the fourth projection position P4 can be any position of the second projection section 3014. The line width of the first trace section 3011 is the same at different positions, and the line width of the second trace section 3012 is the same at different positions. The line width L9 of the third projection position P3 can be regarded as the line width of the first trace section 3011, and the line width L10 of the fourth projection position P4 can be regarded as the line width of the second trace section 3012.

[0106] Wherein, the embodiment limits: |L9-L10| / L9≤20%, that is, the line width L9 of the third projection position P3 is similar or identical to the line width L10 of the fourth projection position P4, the line width of the first trace part 3011 is similar or identical to the line width of the second trace part 3012, which is beneficial to improve the impedance consistency of the first touch trace 301, and can ensure that the reflection effect at different positions of the first touch trace 301 is consistent, and improve the display uniformity.

[0107] The embodiment of the present application does not limit the specific values of L9 and L10, and a person skilled in the art can set them according to actual conditions.

[0108] Figure 15 The first projection position P1, the second projection position P2, the third projection position P3 and the fourth projection position P4 are shown as dots, which do not represent the actual shape of the projection position.

[0109] The touch display panel provided by the embodiment of the present application can also include any structure known to a person skilled in the art, and the embodiment of the present application does not repeat or limit it.

[0110] Based on the same inventive concept, the embodiment of the present application also provides a touch display device. ​ A structural schematic diagram of a touch display device provided by the embodiment of the present application is shown in FIG. 8. ​ As shown in the figure, the touch display device includes the touch display panel 1000 provided by any embodiment of the present application, so the touch display device provided by the embodiment of the present application has the corresponding beneficial effects of the touch display panel 1000 provided by the embodiment of the present application, which will not be repeated here. For example, the touch display device can be a mobile phone, a computer, a smart wearable device (for example, a smart watch) and a vehicle-mounted display device, and the like, and the embodiment of the present application does not limit it.

[0111] Note that the above is only the preferred embodiment of the present application and the technical principle applied. A person skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and a person skilled in the art can make various obvious changes, re-adjustments, mutual combinations and substitutions without departing from the protection scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the inventive concept, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. A touch display panel, characterized in that, The substrate, a plurality of support structures on one side of the substrate, and a plurality of touch wires on the side of the support structures away from the substrate; the plurality of touch wires extend along a first direction and are arranged along a second direction, the first direction and the second direction intersect and are both parallel to the plane of the substrate; The plurality of touch wires includes a first touch wire, the first touch wire includes a first wire part and a second wire part arranged along the first direction, the first wire part extends along the first direction; the first wire part includes a first projection part in the orthographic projection of the plane of the substrate, and the second wire part includes a second projection part in the orthographic projection of the plane of the substrate; The plurality of support structures includes a first support structure, the first support structure includes a first projection support structure in the orthographic projection of the plane of the substrate; Along the first direction, the first projection part overlaps the first projection support structure, and at least part of the second projection part does not overlap the first projection support structure; Along the second direction, the first projection part does not overlap the first projection support structure, and at least part of the second projection part overlaps the first projection support structure; Along the second direction, at least part of the second projection part is located on the side of the straight line of the first projection part away from the center of the first projection support structure; The first touch wire further includes a third wire part, the first wire part, the second wire part and the third wire part are arranged along the first direction; the third wire part includes a third projection part in the orthographic projection of the plane of the substrate; The plurality of support structures further includes a second support structure, the first support structure and the second support structure are staggered along the first direction and the second direction; the second support structure includes a second projection support structure in the orthographic projection of the plane of the substrate; Along the second direction, at least part of the third projection part overlaps the second projection support structure, and at least part of the third projection part is located on the side of the straight line of the first projection part away from the center of the second projection support structure; Along the second direction, the straight line of the first projection part is located between the center of the first projection support structure and the center of the second projection support structure; The convex direction of the second projection part relative to the straight line of the first projection part and the convex direction of the third projection part relative to the straight line of the first projection part are opposite; The plurality of touch wires further includes a second touch wire, the second touch wire and the first touch wire are arranged along the second direction; The second touch wire includes a fourth wire part and a fifth wire part arranged along the first direction, the fourth wire part extends along the first direction; the fourth wire part includes a fourth projection part in the orthographic projection of the plane of the substrate, and the fifth wire part includes a fifth projection part in the orthographic projection of the plane of the substrate; Along the first direction, the fourth projection subpart and the fifth projection subpart are both non-overlapped with the first projection support structure; Along the second direction, the fourth projection subpart is non-overlapped with the first projection support structure, and at least part of the fifth projection subpart is overlapped with the first projection support structure; Along the second direction, at least part of the fifth projection subpart is located on the side of the straight line where the fourth projection subpart is away from the center of the first projection support structure. 2.The touch display panel of claim 1, wherein, The second touch control trace includes a second beta touch control trace, the fourth trace subpart includes a fourth beta trace subpart located in the second beta touch control trace, and the fifth trace subpart includes a fifth beta trace subpart located in the second beta touch control trace; the fourth beta trace subpart includes a fourth beta projection subpart in the orthographic projection of the substrate plane, and the fifth beta trace subpart includes a fifth beta projection subpart in the orthographic projection of the substrate plane; The maximum distance between the second projection subpart and the straight line where the first projection subpart is located in the second direction is L1, and the maximum distance between the fifth beta projection subpart and the straight line where the fourth beta projection subpart is located in the second direction is L3; Wherein, |L1-L2| / L1≤20%. 3.The touch display panel of claim 1, wherein, The second touch control trace includes a second beta touch control trace, the fourth trace subpart includes a fourth beta trace subpart located in the second beta touch control trace, and the fifth trace subpart includes a fifth beta trace subpart located in the second beta touch control trace; the fourth beta trace subpart includes a fourth beta projection subpart in the orthographic projection of the substrate plane, and the fifth beta trace subpart includes a fifth beta projection subpart in the orthographic projection of the substrate plane; The maximum distance between the second projection subpart and the straight line where the first projection subpart is located in the second direction is L1, and the maximum distance between the fifth beta projection subpart and the straight line where the fourth beta projection subpart is located in the second direction is L3; Wherein, L1>L3. 4.The touch display panel of claim 3, wherein, The second touch control trace includes the ith touch signal line and the jth touch signal line arranged along the second direction, and along the second direction, the ith touch signal line is located on the side of the jth touch signal line close to the first support structure; wherein i and j are both positive integers; The fourth trace subpart includes a fourth i trace subpart located in the ith touch signal line and a fourth j trace subpart located in the jth touch signal line, and the fifth trace subpart includes a fifth i trace subpart located in the ith touch signal line and a fifth j trace subpart located in the jth touch signal line; the fourth i trace subpart includes a fourth i projection subpart in the orthographic projection of the substrate plane, the fourth j trace subpart includes a fourth j projection subpart in the orthographic projection of the substrate plane, the fifth i trace subpart includes a fifth i projection subpart in the orthographic projection of the substrate plane, and the fifth j trace subpart includes a fifth j projection subpart in the orthographic projection of the substrate plane; The fifth i projection subpart includes a fifth projection position, and the fifth j projection subpart includes a sixth projection position, which overlap along the second direction; The maximum distance between the fifth i projection subpart and the fourth i projection subpart along the second direction is L4, and the distance between the fifth j projection subpart and the fourth j projection subpart along the second direction is L5; Wherein, L4>L5. 5.The touch display panel of claim 4, wherein, The first support structure includes a first a support structure and a first b support structure, which overlap along the second direction; the orthographic projection of the first a support structure on the plane where the substrate is located includes a first a projection support structure, and the orthographic projection of the first b support structure on the plane where the substrate is located includes a first b projection support structure; The touch display panel further includes a first touch wire group and a second touch wire group between the first a support structure and the first b support structure along the second direction, the first touch wire group and the second touch wire group each include a plurality of second touch wires, and the first touch wire group is located on one side of the second touch wire group close to the first a support structure; Among the plurality of second touch wires included in the first touch wire group, at least part of the fifth projection subpart is located on one side of the straight line where the fourth projection subpart is located away from the center of the first a projection support structure along the second direction; and along the direction of the first a support structure pointing to the first b support structure, the maximum distance between the fifth projection subpart and the straight line where the fourth projection subpart is located gradually decreases; Among the plurality of second touch wires included in the second touch wire group, at least part of the fifth projection subpart is located on one side of the straight line where the fourth projection subpart is located away from the center of the first b projection support structure along the second direction; and along the direction of the first b support structure pointing to the first a support structure, the maximum distance between the fifth projection subpart and the straight line where the fourth projection subpart is located gradually decreases. 6.The touch display panel of claim 1, wherein, The plurality of touch wires further include a third touch wire, which is located on one side of the first touch wire close to the support structure; The third touch wire includes a sixth wire subpart and a seventh wire subpart arranged along the first direction, the sixth wire subpart extends along the first direction; the orthographic projection of the sixth wire subpart on the plane where the substrate is located includes a sixth projection subpart, and the orthographic projection of the seventh wire subpart on the plane where the substrate is located includes a seventh projection subpart; at least part of the seventh projection subpart is located on one side of the straight line where the sixth projection subpart is located away from the center of the first projection support structure; Along the thickness direction of the touch display panel, the sixth wire subpart overlaps the first wire subpart; the maximum distance between the second projection subpart and the straight line where the first projection subpart is located along the second direction is L1, and the maximum distance between the seventh projection subpart and the straight line where the sixth projection subpart is located along the second direction is L6; Wherein, L6>L1. 7.The touch display panel of claim 6, wherein, The third touch wire is electrically connected with the first touch wire. Alternatively, the third touch wire is insulated from the first touch wire. 8.The touch display panel of claim 1, wherein, The second projection subpart includes a first projection position and a second projection position. The minimum distance between the first projection position and the first projection support structure is L7, and the minimum distance between the second projection position and the first projection support structure is L8. Wherein, |L7-L8| / L7≤20%. 9.The touch display panel of claim 1, wherein, The first projection subpart includes a third projection position, and the second projection subpart includes a fourth projection position. The line width of the third projection position is L9, and the line width of the fourth projection position is L10. Wherein, |L9-L10| / L9≤20%. 10.The touch display panel of claim 1, wherein, The touch display panel further includes a display area and a non-display area, and the touch wire is located in the display area or the non-display area. The touch display panel further includes a touch electrode located in the display area, and the touch electrode is electrically connected with the touch wire.

11. A touch display device, comprising: The touch display panel includes any one of claims 1-10.

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