Touch display panel and touch display device

Abstract

The invention 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 control wire comprises a first wire branch part and a second wire branch part; on the plane where the substrate is located, the first wiring branch comprises a first projection branch, the second wiring branch comprises a second projection branch, and the first supporting structure comprises a first projection supporting structure; in the first direction, the first projection subsection is overlapped with the first projection supporting structure, and at least part of the second projection subsection is not overlapped with the first projection supporting structure; in the second direction, the first projection subsection is not overlapped with the first projection supporting structure, at least part of the second projection subsection is overlapped with the first projection supporting structure, and at least part of the second projection subsection is located on the side, away from the center of the first projection supporting structure, of the straight line where the first projection subsection is located. Therefore, the problem of poor breakage of the touch wiring can be avoided, and the reliability of the touch display panel is improved.

Description

Technical Field

[0001] Embodiments of the present invention relate to the field of display technology, and in particular to a touch display panel and a touch display device. Background Art

[0002] With the development of science and technology, the field of touch panels has also made great progress, and people's requirements for touch panels are also increasing day by day. The touch display panel includes touch wiring and touch electrodes. The touch wiring is connected to the touch electrode to provide touch signals to the touch electrode. The preparation effect of the touch wiring affects the transmission of the touch signal, thereby affecting the touch performance of the touch display panel. Improving the preparation effect of the touch wiring and avoiding problems such as broken touch wiring are important issues in the manufacturing process of touch display panels. Summary of the invention

[0003] The present invention provides a touch display panel and a touch display device, so as to reduce or avoid the problem of bad touch wiring disconnection, ensure the touch effect, and improve the reliability of the touch display panel.

[0004] In a first aspect, an embodiment of the present invention provides a touch display panel, comprising a substrate, a plurality of support structures located on one side of the substrate, and a plurality of touch lines located on a side of the support structures away from the substrate; the plurality of touch lines 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 a plane where the substrate is located;

[0005] The plurality of touch lines include a first touch line, the first touch line includes a first line section and a second line section arranged along the first direction, the first line section extends along the first direction; the orthographic projection of the first line section on the plane where the substrate is located includes a first projection section, and the orthographic projection of the second line section on the plane where the substrate is located includes a second projection section;

[0006] The plurality of support structures include a first support structure, and 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 projected section overlaps with the first projected support structure, and at least a portion of the second projected section does not overlap with the first projected support structure; along the second direction, the first projected section does not overlap with the first projected support structure, and at least a portion of the second projected section overlaps with the first projected support structure;

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

[0009] In a second aspect, an embodiment of the present invention provides a touch display device, comprising the display panel according to the first aspect of the present invention.

[0010] In the embodiment of the present invention, by setting the second wiring section of the first touch wiring close to the first supporting structure to be wound in the area corresponding to the first supporting structure, the first touch wiring can avoid the area above the first supporting structure, so that the first touch wiring and the orthographic projection of the first supporting structure in the direction of the substrate plane do not overlap. This avoids abnormal touch wiring caused by the presence of evaporated foreign matter in the area above the first supporting structure, avoids undesirable problems such as touch wiring disconnection, ensures normal transmission of touch signals, improves touch effects, and improves the reliability of the touch display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A schematic diagram of the structure of a display panel in a related technology provided by an embodiment of the present invention;

[0012] Figure 2 A schematic diagram of the structure of a touch display panel provided by an embodiment of the present invention;

[0013] Figure 3 A schematic diagram of the structure of another touch display panel provided by an embodiment of the present invention;

[0014] Figure 4 A schematic diagram of a partially enlarged structure of a touch display panel provided by an embodiment of the present invention;

[0015] Figure 5 A schematic cross-sectional structure diagram of a touch display panel provided by an embodiment of the present invention;

[0016] Figure 6 A schematic diagram of a partial structure of another touch display panel provided by an embodiment of the present invention;

[0017] Figure 7 A schematic diagram of a partial structure of another touch display panel provided by an embodiment of the present invention;

[0018] Figure 8 A schematic diagram of a partial structure of another touch display panel provided by an embodiment of the present invention;

[0019] Fig. 9 A schematic diagram of a partial structure of another touch display panel provided by an embodiment of the present invention;

[0020] Fig.10 A schematic diagram of a partial structure of another touch display panel provided by an embodiment of the present invention;

[0021] Fig.11A schematic diagram of a partial structure of another touch display panel provided by an embodiment of the present invention;

[0022] Fig.12 A schematic diagram of a partial structure of another touch display panel provided by an embodiment of the present invention;

[0023] Fig.13 for Fig.12 Schematic diagram of the cross-sectional structure along the A-A' direction;

[0024] Fig.14 A schematic diagram of a partial structure of another touch display panel provided by an embodiment of the present invention;

[0025] Fig.15 A schematic structural diagram of a touch display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0027] It should be noted that the terms “having”, “including”, “comprising”, etc. described in the present application are all open-ended meanings, that is, when describing a module as “having”, “including” or “comprising” 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, ordinal numbers such as “first”, “second” and “third” in the present application are not intended to limit a specific order, but are only intended to distinguish between the various parts. In the present application, when describing that layer A and layer B are “set in the same layer”, it means that layer A and layer B are made of the same material and process.

[0028] A support column 20' is generally provided in a touch display panel. For a liquid crystal touch display panel, the support column 20' can support the array substrate and the mask substrate; for an organic light emitting diode touch display panel, the support column 20' can support the display panel and the evaporation mask. The touch wiring 30' is generally provided on the side of the support column 20' away from the base substrate 10'. Figure 1 A schematic diagram of a display panel structure in a related technology provided by an embodiment of the present invention can be referred to Figure 1In the related art, some touch lines 30' are arranged above the support column 20', that is, the orthographic projection of the touch lines 30' on the plane where the base substrate 10' is located overlaps with the orthographic projection of the support column 20' on the plane where the base substrate 10' is located. The inventors have found that under this arrangement, the vapor-deposited foreign matter above the support column 20' may cause the touch lines 30' to be abnormal, thereby causing abnormal signal transmission of this part of the touch lines 30', affecting the touch effect, and causing the reliability of the display panel to be reduced.

[0029] Based on the defects of the above-mentioned related technologies, the present application provides a touch display panel, which includes a substrate, a plurality of support structures located on one side of the substrate, and a plurality of touch lines located on a side of the support structures away from the substrate; the plurality of touch lines 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;

[0030] The plurality of touch lines include a first touch line, the first touch line includes a first line section and a second line section arranged along a first direction, the first line section extends along the first direction; an orthographic projection of the first line section on the plane where the substrate is located includes a first projection section, and an orthographic projection of the second line section on the plane where the substrate is located includes a second projection section;

[0031] The plurality of support structures include a first support structure, and an orthographic projection of the first support structure on a plane where the substrate is located includes a first projection support structure;

[0032] Along the first direction, the first projected section overlaps with the first projected support structure, and at least a portion of the second projected section does not overlap with the first projected support structure; along the second direction, the first projected section does not overlap with the first projected support structure, and at least a portion of the second projected section overlaps with the first projected support structure;

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

[0034] In the embodiment of the present invention, the second wiring section of the first touch wiring close to the first supporting structure is arranged to be wound in the area corresponding to the first supporting structure, and the first touch wiring can avoid the area above the first supporting structure, so that the first touch wiring and the orthographic projection of the first supporting structure in the direction of the plane where the substrate is located do not overlap. This avoids abnormal touch wiring caused by the presence of vapor-deposited foreign matter in the area above the first supporting structure, avoids undesirable problems such as disconnection of the touch wiring, ensures normal transmission of touch signals, improves touch effects, and improves the reliability of the touch display panel.

[0035] The above is the core idea of ​​the present invention. The technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Figure 2 A schematic diagram of the structure of a touch display panel provided by an embodiment of the present invention is shown in FIG. Figure 3 A schematic diagram of the structure of another touch display panel provided by an embodiment of the present invention, Figure 4 A partial enlarged structural diagram of a touch display panel provided by an embodiment of the present invention, Figure 5 A schematic diagram of the cross-sectional structure of a touch display panel provided by an embodiment of the present invention. Figure 2-Figure 5 In an embodiment of the present invention, 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 lines 30 located on a side of the support structure 20 away from the substrate 10; the plurality of touch lines 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 where the substrate 10 is located; the plurality of touch lines 30 include a first touch line 301, the first touch line 301 includes a first line section 3011 and a second line section 3012 arranged along the first direction X, the first line section 3011 extends along the first direction X; the orthographic projection of the first line section 3011 on the plane where the substrate 10 is located includes a first projection section 3013, and the second line section 3012 on the plane where the substrate 10 is located includes a first projection section 3014. The orthographic projection includes a second projection section 3014; the plurality of support structures 20 include a first support structure 201, and the orthographic projection of the first support structure 201 on the plane where the substrate 10 is located includes a first projection support structure 202; along the first direction X, the first projection section 3013 overlaps with the first projection support structure 202, and at least a portion of the second projection section 3014 does not overlap with the first projection support structure 202; along the second direction Y, the first projection section 3013 does not overlap with the first projection support structure 202, and at least a portion of the second projection section 3014 overlaps with the first projection support structure 202; along the second direction Y, at least a portion of the second projection section 3014 is located on a side of the straight line where the first projection section 3013 is located, away from the center of the first projection support structure 202.

[0037] like Figure 2-Figure 5 As shown, in order to realize the touch function of the touch display panel, a touch electrode 40 and a touch trace 30 connected to the touch electrode 40 are provided in the touch display panel, and the touch trace 30 transmits a touch signal to the touch electrode 40. The touch trace 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 embodiment of the present invention.

[0038] Among them, the touch display panel can be a liquid crystal display panel or an organic light emitting diode display panel. In the embodiment of the present invention, the organic light emitting diode display panel is used as an example for description, but it is not limited thereto. Taking the organic light emitting diode display panel as an example, a driving circuit layer 50, a light emitting element layer 60 and a touch layer can be provided on one side of the substrate 10. The driving circuit layer 50 includes a plurality of driving circuits 501, and the light emitting element layer 60 includes a plurality of light emitting elements 601. The driving circuit 501 is connected to the light emitting element 601 correspondingly to drive the light emitting element 601 to emit light. The touch layer may include a touch electrode 40 and a touch trace 30.

[0039] Exemplarily, the side of the driving circuit layer 50 away from the substrate 10 includes a plurality of anodes 602 and a pixel definition layer 70, and 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 anode 602 of the light-emitting element. The light-emitting element layer 60 may include an anode 602, an organic functional layer 603 and a cathode (not shown in the figure), the organic functional layer 603 is located in the opening, and the cathode is located on the side of the organic functional layer 603 away from the anode 602. The anode 602, the organic functional layer 603 and the cathode in a pixel setting area constitute a light-emitting element 601. The light-emitting element layer 60 and the touch layer may be spaced apart by a first encapsulation layer 80, and the first encapsulation layer 80 may include an organic encapsulation layer and / or an inorganic encapsulation layer. A color resist layer 90 and a second encapsulation layer 100 may be provided on the side of the touch layer away from the first encapsulation layer 80, and the second encapsulation layer 100 may include an optical adhesive layer, etc. Of course, the above-mentioned film layer design scheme is only an example. In actual application, those skilled in the art can replace the positions of the film layers, add or remove certain film layers according to actual needs.

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

[0041] The touch display panel in the embodiment of the present invention may be a self-capacitive touch display panel (such as Figure 3 as shown) or a mutual capacitive touch display panel (as shown Figure 2As shown). A self-capacitive touch display panel is usually composed of a plurality of touch electrode blocks 40 (i.e., the touch electrodes 40 in the present invention) arranged in an array. Each touch electrode block 40 can form a self-capacitance with the ground. The external capacitance formed by finger contact will change the self-capacitance formed between the touch electrode block 40 and the ground, thereby detecting the specific position of the touch point. A mutual capacitance touch display panel is usually composed of a sensing electrode 401 and a driving electrode 402 (both the sensing electrode and the driving electrode can be the touch electrodes 40 in the present invention). A mutual capacitance is formed between the driving electrode 402 and the sensing electrode 401. The external capacitance formed by finger contact will change the mutual capacitance between the two electrodes, thereby detecting the specific position of the touch point.

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

[0043] The non-display area NA surrounds at least a portion of the display area AA, which is used for image display. 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, which does not display images and is used for arranging peripheral wiring (not shown in the figure) and peripheral driving circuits. Figure 2 For the mutual capacitance touch display panel shown, the touch electrodes 40 in the display area AA are led out through the touch wiring 30 in the non-display area NA and then electrically connected to the touch driving module 110 (eg, a touch driving chip). Figure 3 For the self-capacitive touch display panel shown, the touch electrodes 40 in the display area AA are led out through the touch wirings 30 in the display area AA and are further electrically connected to the touch driving module 110 .

[0044] Further, continue to refer to Figure 2-Figure 4 , the touch line 30 may extend along the first direction X and be arranged in the 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 extending direction of the touch line 30, and the second direction Y represents the arrangement direction of the touch line 30. In different areas of the display panel, the first direction X may be different, and the second direction Y may be different. For example, in Figure 2 In the left and right frames of the touch display panel shown, the first direction X may be a column direction, and the second direction Y may be a row direction; Figure 2 At the lower frame of the touch display panel shown, the first direction X may be a row direction, and the second direction Y may be a column direction; Figure 3In the display area AA of the touch display panel, the first direction X may be a column direction, and the second direction Y may be a row direction. Figure 4 The partial enlarged structure schematic diagram shown can represent the layout schematic diagram of the touch wiring 30 in the lower frame of the mutual capacitive touch display panel. Figure 4 For the illustrated orientation, the first direction X may be a row direction, and the second direction Y may be a column direction.

[0045] Continue to refer Figure 2-Figure 5 , the support structure 20 includes a first support structure 201, and the orthographic projection of the first support structure 201 on the plane where the substrate 10 is located is a first projection support structure 202. The touch line 30 includes a first touch line 301, and the first touch line 301 may refer to a portion of the touch line 30 close to the first support structure 201. The first touch line 301 can be used to transmit TX or RX signals. The first touch line 301 includes a first line section 3011 and a second line section 3012, and the first line section 3011 and the second line section 3012 are arranged along the extension direction of the first touch line 301 and are electrically connected, and the second line section 3012 can be connected between the two first line sections 3011. Among them, the extension direction of the first line section 3011 is the same as the extension direction of the first touch line 301 as a whole. The orthographic projection of the first routing portion 3011 on the plane where the substrate 10 is located is a first projection portion 3013 , and the orthographic projection of the second routing portion 3012 on the plane where the substrate 10 is located is a second projection portion 3014 . Figure 4 The structure shown in the figure can be regarded as the structure body or as its positive projection on the plane where the substrate is located.

[0046] In the first direction X, the first projection support structure 202 overlaps with the first projection sub-section 3013, and does not overlap with at least a portion of the second projection sub-section 3014; in the second direction Y, the first projection support structure 202 does not overlap with the first projection sub-section 3013, and overlaps with at least a portion of the second projection sub-section 3014. In the connected first projection sub-section 3013 and second projection sub-section 3014, the second projection sub-section 3014 is located on the side of the straight line where the first projection sub-section 3013 is located away from the center of the first projection support structure 202. In short, the second projection sub-section 3014 close to the first projection support structure 202 and overlapping with it in the second direction Y surrounds the periphery of the first projection support structure 202. Figure 4 The dotted line at the first projection portion 3013 is the straight line where the first projection portion 3013 is located.

[0047] In this way, the portion of the first touch line 301 close to the first support structure 201 (i.e., the second line section 3012) is wound in the area corresponding to the first support structure 201, and the first touch line 301 avoids the area above the first support structure 201 (the side away from the substrate 10), so that the orthographic projections of the first touch line 301 and the first support structure 201 in the plane direction of the substrate 10 do not overlap. Since the touch line 30 is not arranged in the area above the first support structure 201, even if there are evaporated foreign objects above the support structure 20, it will not affect the arrangement effect of the touch line 30, and can reduce or avoid adverse problems such as disconnection of the touch line 30, ensure the normal transmission of the touch signal, improve the touch effect, and improve the reliability of the touch display panel.

[0048] It should be noted that the winding starting point of the second routing section 3012 is the end point of the first routing section 3011, and along the first direction X, the portion of the second routing section 3012 close to the winding starting point will still overlap with the first projection support structure 202. Therefore, in the embodiment of the present invention, it is defined that along the first direction X, at least a portion of the second projection section 3014 does not overlap with the first support projection structure.

[0049] Optionally, the embodiment of the present invention does not limit the winding shape of the second routing section 3012, that is, the shape of the second projection section 3014. Figure 4 In the figure, the second routing section 3012 is in a right trapezoidal fold line shape, but is not limited thereto. In an embodiment not shown in the present invention, the second routing section 3012 may also be in an arc shape or any fold line shape. Figure 4 The winding shape of the second routing sub-portion 3012 is shown in FIG. 2 , and the second routing sub-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 the first direction X, and 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 routing sub-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 routing sub-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-portion 30121 intersects both the first direction X and the second direction Y, the second sub-portion 30122 extends along the first direction X, and the extension direction of the third sub-portion 30123 intersects both the first direction X and the second direction Y.

[0050] Among them, it should be noted that when the second projection section 3014 is wound, the second projection section 3014 should be wound toward the side of the straight line where the first projection section 3013 connected thereto is located, which is far away from the center of the first projection support structure 202. That is, when the first touch line 301 is wound at the first support structure 201, it is wound toward the edge of the first support structure 201 which is closer to the first touch line 301 along the first direction X. In other words, along the second direction Y, the second projection section 3014 protrudes toward the side of the straight line where the first projection section 3013 is located, which is far away from the center of the first projection support structure 202. For example, as Figure 4 As shown, along the first direction X, when there are two first projection sub-sections 3013 overlapping with the same first projection support structure 202, the second projection sub-section 3014 connected to the first projection sub-section 3013 near the upper edge of the first projection support structure 202 may be arranged to be wound from above the first projection support structure 202, and the second projection sub-section 3014 connected to the first projection sub-section 3013 near the lower edge of the first projection support structure 202 may be arranged to be wound from below the first projection support structure 202. This reduces the difficulty of winding the second routing sub-section 3012. Of course, in other embodiments, the same first projection support structure 202 may overlap with one or more first projection sub-sections 3013 along the first direction X. In this case, a suitable winding method may be designed according to the distance between the first projection sub-section 3013 and the center of the first projection support structure 202, and this will not be described in detail in the embodiment of the present invention.

[0051] In the embodiment of the present invention, a portion of the first touch line 301 close to the first support structure 201 (i.e., the second line section 3012) is arranged to be wound in the area corresponding to the first support structure 201, and the first touch line 301 avoids the area corresponding to the first support structure 201, so that the orthographic projections of the first touch line 301 and the first support structure 201 in the plane direction of the substrate 10 do not overlap. This can avoid abnormalities of the touch line 30 due to the presence of vapor-deposited foreign matter in the area above the first support structure 2011, avoid problems such as disconnection of the touch line 30, ensure normal transmission of touch signals, improve touch effects, and improve the reliability of the touch display panel.

[0052] Optional, you can continue to refer to Figure 4In a possible embodiment, the first touch wiring 301 further includes a third wiring division 3015, and the first wiring division 3011, the second wiring division 3012 and the third wiring division 3015 are arranged along the first direction X; the orthographic projection of the third wiring division 3015 on the plane where the substrate 10 is located includes a third projection division 3016; the multiple support structures 20 further include a second support structure 203, and along the first direction X and the second direction Y, the first support structure 201 and the second support structure 203 are staggered; the orthographic projection of the second support structure 203 on the plane where the substrate 10 is located includes a second projection support structure 204; along the second direction Y, at least part of the third projection division 3016 overlaps with the second projection support structure 204, and at least part of the third projection division 3016 is located on a side of the straight line where the first projection division 3013 is located away from the center of the second projection support structure 204.

[0053] like Figure 4 As shown, the first touch line 301 also includes a third line section 3015, and the orthographic projection of the third line section 3015 on the plane where the substrate 10 is located is a third projection section 3016. The support structure 20 also includes a second support structure 203, and the second support structure 203 is in the same layer as the first support structure 201, and the two are staggered in 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 support effect of the support structure 20. The orthographic projection of the second support structure 203 on the plane where the substrate 10 is located is a second projection support structure 204, and the second projection support structure 204 does not overlap with the first projection support structure 202 in the first direction X and the second direction Y.

[0054] Among them, reference Figure 4 The second projection support structure 204 overlaps with at least part of the third projection division 3016 along the second direction Y, the second projection support structure 204 and the third projection division 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 routing division 3015 on the plane where the substrate 10 is located does not overlap with the support structure 20. Figure 4 It is exemplarily shown that the second projection support structure 204 is located at the upper left of the first projection support structure 202, and the third projection section 3016 is located at the left side of the first projection support structure 202, but it is not limited thereto.

[0055] It should be noted that, in the embodiment of the present invention, 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. Figure 4As shown, when the lower right support structure 20 is regarded as the first support structure 201, the upper left support structure 20 is regarded as the second support structure 203; when the upper left support structure 20 is regarded as the first support structure 201, the lower right support structure 20 is regarded as the second support structure 203.

[0056] It can be understood that the first touch line 301 can also be wound in the corresponding area of ​​the second support structure 203 to avoid the area above the second support structure 203. Exemplarily, along the first direction X, there is at least one first projection section 3013 of the first touch line 301 overlapping with the second projection support structure 204, and at least part of the second projection section 3014 does not overlap with the second projection support structure 204; along the second direction Y, the first projection section 3013 does not overlap with the second projection support structure 204, and at least part of the second projection section 3014 overlaps with the second projection support structure 204. That is, there is at least one second projection section 3014 surrounding the second projection support structure 204, and along the second direction Y, the second projection section 3014 protrudes toward the side of the straight line where the first projection section 3013 is located away from the center of the second projection support structure 204 (that is, along the second direction Y, the second projection support structure 204 faces the side of the first projection support structure 202).

[0057] Continue to refer Figure 4 , along the first direction X, the third projection division 3016 corresponding to the first projection support structure 202 overlaps with the second projection division 3014 winding around the second projection support structure 204. Since the second projection division 3014 winding around the second projection support structure 204 protrudes toward the side of the straight line where the first projection division 3013 is located away from the center of the second projection support structure 204, in this embodiment, at least a part of the third projection division 3016 can be arranged to be located on the side of the straight line where the first projection division 3013 is located away from the center of the second projection support structure 204, and the third projection division 3016 corresponding to the first projection support structure 202 also protrudes toward the side of the straight line where the first projection division 3013 is located away from the second projection support structure 204. In this way, the same first touch line 301 includes at least two winding sections (a second routing section 3012 and a third routing section 3015), and the winding sections of different first touch lines 301 are arranged in the second direction Y, and along the second direction Y, the protrusion directions of the projections of at least part of the winding sections located between the first projection support structure 202 and the second projection support structure 204 are consistent, which is beneficial to improving the uniformity of the winding distribution of the first touch line 301, thereby ensuring the impedance consistency and display uniformity of the touch line 30.

[0058] Figure 6 A partial structural diagram of another touch display panel provided by an embodiment of the present invention, Figure 6In the embodiment shown, the first support structure 201 and the second support structure 203 are arranged in the same manner as Figure 4 The embodiment shown is the same as that shown in the figure, and will not be described in detail here. Figure 4 The embodiment shown differs in that Figure 6 In the illustrated embodiment, the first touch wiring 301 only includes a first wiring section 3011 and a second wiring section 3012, and the second wiring section 3012 can be connected between the two first wiring sections 3011. The first touch wiring 301 corresponding to the first support structure 201 is not wound at the second support structure 203 adjacent to the first support structure 201, thereby reducing the difficulty of winding the first touch wiring 301, and the layout difficulty of the touch wiring 30 is relatively small.

[0059] Optional, you can continue to refer to Figure 4 , along the second direction Y, the straight line where the first projection division 3013 is located is located between 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 division 3014 relative to the straight line where the first projection division 3013 is located is opposite to the protruding direction of the third projection division 3016 relative to the straight line where the first projection division 3013 is located.

[0060] It can be defined that 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) constitute a support structure group. Figure 4 As shown, for the same support structure group, the first projection section 3013 overlapping with the first projection support structure 202 along the first direction X includes a first sub-projection section 30131. Along the second direction Y, the straight line where the first sub-projection section 30131 is located is located between the center of the first projection support structure 202 and the center of the second projection support structure 203. The protrusion directions of the second projection section 3014 and the third projection section 3016 corresponding to this part of the first touch wiring 301 are opposite.

[0061] For example, Figure 4Take the lower right of the middle as an example, the first support structure 201 (first projection support structure 202), and the upper left as an example, the second support structure 203 (second projection support structure 204). The second projection sub-section 3014 connected to the first sub-projection sub-section 30131 close to the first projection support structure 202 is convex toward the side close to the second projection support structure 204 (i.e., the side where the straight line of the first sub-projection sub-section 30131 is away from the center of the first projection support structure 202), and the third projection sub-section 3016 connected to the second projection sub-section 3014 is convex toward the side away from the second projection support structure 204 (i.e., the side where the straight line of the first sub-projection sub-section 30131 is toward the center of the first projection support structure 202). The second projection sub-section 3014 connected to the first sub-projection sub-section 30131 close to the second projection support structure 204 protrudes toward the side close to the first projection support structure 202 (i.e., the side where the straight line of the first sub-projection sub-section 30131 is far from the center of the second projection support structure 204), and the third projection sub-section 3016 connected to the second projection sub-section 3014 protrudes toward the side away from the first projection support structure 202 (i.e., the side where the straight line of the first sub-projection sub-section 30131 is toward the center of the second projection support structure 204). Under this arrangement, along the second direction Y, in the first touch control wiring 301 between the first projection support structure 202 and the second projection support structure 204, the second projection sub-section 3014 and the third projection sub-section 3016 overlapping along the second direction Y have the same protrusion direction, and the winding method of this part of the first touch control wiring 301 is the same, and the impedance is relatively consistent.

[0062] Optional, you can continue to refer to Figure 4 , along the second direction Y, the straight line where the first projection division 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 division 3014 relative to the straight line where the first projection division 3013 is located is the same as the protruding direction of the third projection division 3016 relative to the straight line where the first projection division 3013 is located.

[0063] like Figure 4 As shown, for the same support structure group, the first projection sub-portion 3013 overlapping with the first projection support structure 202 along the first direction X includes a second sub-projection sub-portion 30132. Along the second direction Y, the straight line where the second sub-projection sub-portion 30132 is located is located on the same side of the center of the first projection support structure 202 and the second projection support structure 204. The second projection sub-portion 3014 and the third projection sub-portion 3016 corresponding to this part of the first touch wiring 301 have the same protrusion direction.

[0064] For example, Figure 4Take the lower right of the middle as an example, the first support structure 201 (first projection support structure 202), and the upper left as the second support structure 203 (second projection support structure 204). The second projection division 3014 connected to the second sub-projection division 30132 close to the first projection support structure 202 protrudes toward the side away from the second projection support structure 204 (i.e., the side where the straight line where the second sub-projection division 30132 is located is away from the center of the first projection support structure 202), and the third projection division 3016 connected to the second projection division 3014 also protrudes toward the side away from the second projection support structure 204. The second projection division 3014 connected to the second sub-projection division 30132 close to the second projection support structure 204 protrudes toward the side away from the first projection support structure 202 (i.e., the side where the straight line where the second sub-projection division 30132 is located is away from the center of the second projection support structure 204), and the third projection division 3016 connected to the second projection division 3014 protrudes toward the side away from the first projection support structure 202. In this configuration, the third projection portion 3016 connected to the first sub-projection portion 30131 and the third projection portion 3016 connected to the second sub-projection portion 30132 have the same protrusion direction, which is beneficial to the layout of the third routing portion 3015 .

[0065] Optional, you can continue to refer to Figure 4 In a possible embodiment, the plurality of touch lines 30 further include a second touch line 302, and the second touch line 302 and the first touch line 301 are arranged along the second direction Y; the second touch line 302 includes a fourth line section 3021 and a fifth line section 3022 arranged along the first direction X, and the fourth line section 3021 extends along the first direction X; the orthographic projection of the fourth line section 3021 on the plane where the substrate 10 is located includes a fourth projection section 3023, and the orthographic projection of the fifth line section 3022 on the plane where the substrate 10 is located includes a fourth projection section 3024. It includes a fifth projection division 3024; along the first direction X, the fourth projection division 3023 and the fifth projection division 3024 do not overlap with the first projection support structure 202; along the second direction Y, the fourth projection division 3023 does not overlap with the first projection support structure 202, and at least a portion of the fifth projection division 3024 overlaps with the first projection support structure 202; along the second direction Y, at least a portion of the fifth projection division 3024 is located on a side of the straight line where the fourth projection division 3023 is located, away from the center of the first projection support structure 202.

[0066] like Figure 4As shown, the orthographic projection of the second touch line 302 on the plane where the substrate 10 is located is located on the side of the orthographic projection of the first touch line 301 away from the first projection support structure 202. The second touch line 302 and the first touch line 301 can transmit the same or different touch signals. The second touch line 302 may include a fourth line branch 3021 and a fifth line branch 3022; the fourth line branch 3021 and the fifth line branch 3022 are arranged along the extension direction of the second touch line 302 and are electrically connected. The fourth line branch 3021 and the first line branch 3011 are arranged along the second direction Y, and the fifth line branch 3022 and the second line branch 3012 are arranged along the second direction Y. The orthographic projection of the fourth line branch 3021 on the plane where the substrate 10 is located is the fourth projection branch 3023, and the orthographic projection of the fifth line branch 3022 on the plane where the substrate 10 is located is the fifth projection branch 3024.

[0067] The orthographic projection of the second touch-sensing trace 302 on the plane where the substrate 10 is located does not overlap with the first projection support structure 202 along the first direction X. Specifically, in the first direction X, the fourth projection sub-section 3023 and the fifth projection sub-section 3024 do not overlap with the first projection support structure 202; in the second direction Y, the fourth projection sub-section 3023 does not overlap with the first projection support structure 202, and at least part of the fifth projection sub-section 3024 overlaps with the first projection support structure 202. Of the connected fourth projection sub-section 3023 and fifth projection sub-section 3024, the fifth projection sub-section 3024 is located on the side of the straight line where the fourth projection sub-section 3023 is located away from the center of the first projection support structure 202. Simply put, in the orthographic projection of the second touch line 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, thereby ensuring that the impedance of the touch lines 30 in different areas is consistent or similar, thereby improving the touch signal transmission effect.

[0068] The winding shapes of the fourth wiring sub-section 3021 and the second wiring sub-section 3012 may be the same or different, which is not limited in the embodiment of the present invention. The figure takes the same winding shape of the two as an example, which is not limited to this. Figure 4The winding shape of the fifth routing sub-section 3022 is shown in the figure, and the fifth routing sub-section 3022 may include a fourth sub-section 30221, a fifth sub-section 30222, and a sixth sub-section 30223 arranged and electrically connected along the first direction X, and the fifth sub-section 30222 is connected between the fourth sub-section 30221 and the sixth sub-section 30223. Along the second direction Y, the first projection support structure 202 covers the fifth sub-section 30222, the first end of the fourth sub-section 30221 is connected to the fourth routing sub-section 3021, and the second end of the fourth sub-section 30221 is connected to the first end of the fifth sub-section 30222; the second end of the fifth sub-section 30222 is connected to the first end of the sixth sub-section 30223, and the sixth sub-section 30223 is electrically connected to the fourth routing sub-section 3021 located on the other side along the first direction X. The extension direction of the fourth sub-portion 30221 intersects both the first direction X and the second direction Y, the fifth sub-portion 30222 extends along the first direction X, and the extension direction of the sixth sub-portion 30223 intersects both the first direction X and the second direction Y.

[0069] Figure 7 A partial structural diagram of another touch display panel provided in an embodiment of the present invention can be referred to Figure 7 In other possible embodiments, the plurality of touch lines 30 further include a fourth touch line 304, and the fourth touch line 304 and the first touch line 301 are arranged along the second direction Y; the orthographic projection of the fourth touch line 304 on the plane where the substrate 10 is located includes an eighth projection division (no new reference numerals are used in the figure, refer to the fourth touch line 304), and along the first direction X, the eighth projection division does not overlap with the first projection support structure 202 and the second projection support structure 204. The extension direction of each area of ​​the eighth projection division remains unchanged, and all extend along the first direction X. Since along the thickness direction of the touch display panel, the projection of any position of the fourth touch line 304 does not overlap with the projection of the support structure 20, the probability that the support structure 20 causes the fourth touch line 304 to be abnormal is small, and at this time, the fourth touch line 304 may not be wound, thereby reducing the overall winding complexity of the touch line 30.

[0070] Optional, Figure 8 A partial structural diagram of another touch display panel provided in an embodiment of the present invention can be referred to Figure 8In some embodiments, the second touch wiring 302 includes a second A touch wiring 302a, the fourth wiring division 3021 includes a fourth A wiring division 3021a located in the second A touch wiring 302a, the fifth wiring division 3022 includes a fifth A wiring division 3022a located in the second A touch wiring 302a, and the orthographic projection of the fourth A wiring division 3021a on the plane where the substrate 10 is located includes a fourth A projection division (no new reference numerals are used in the figure, refer to the fourth A wiring The orthographic projection of the fifth A wiring division 3022a on the plane where the substrate 10 is located includes the fifth A projection division (no new reference numerals are used in the figure, refer to the fifth A wiring division 3022a); the maximum distance between the second projection division 3014 and the straight line where the first projection division 3013 is located in the second direction Y is L1, and the maximum distance between the fifth A projection division and the straight line where the fourth A projection division is located in the second direction Y is L2; ​​wherein, |L1-L2| / L1≤20%.

[0071] Figure 4 The second touch lines 302 shown are all second A touch lines 302a, and the second A touch lines 302a may include a fourth A line section 3021a (corresponding to the fourth line section 3021 described above) and a fifth A line section 3022a (corresponding to the fifth line section 3022 described above). The orthographic projection of the fourth A line section 3021a on the plane where the substrate 10 is located is the fourth A projection section, and the orthographic projection of the fifth A line section 3022a on the plane where the substrate 10 is located is the fifth A projection section. Along the second direction Y, the fifth A projection section (fifth A line section 3022a) overlaps with the second projection section 3014, and the fifth A projection section is wound.

[0072] Furthermore, if Figure 4 As shown, along the second direction Y, in the same first touch routing 301, the maximum distance L1 between the straight line where the second projection division 3014 and the first projection division 3013 are located can be the distance between the second sub-division 30122 and the straight line where the first routing division 3011 are located. In the same second touch routing 302, the maximum distance between the straight line where the fifth A projection division and the fourth A projection division are located in the second direction Y can be the distance between the fifth sub-division 30222 and the straight line where the fourth A routing division 3021a are located.

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

[0074] Fig. 9 A partial structural diagram of another touch display panel provided in an embodiment of the present invention can be referred to Fig. 9 In some other possible embodiments, the second touch wiring 302 includes a second B touch wiring 302b, the fourth wiring division 3021 includes a fourth B wiring division 3021b located in the second B touch wiring 302b, the fifth wiring division 3022 includes a fifth B wiring division 3022b located in the second B touch wiring 302b, and the orthographic projection of the fourth B wiring division 3021b on the plane where the substrate 10 is located includes a fourth B projection division (no new reference numerals are used in the figure, Refer to the fourth B routing division 3021b), the orthographic projection of the fifth B routing division 3022b on the plane where the substrate 10 is located includes the fifth B projection division (no new figure marks are used in the figure, refer to the fifth B routing division 3022b; the maximum distance between the second projection division 3014 and the straight line where the first projection division 3013 is located in the second direction Y is L1, and the maximum distance between the fifth B projection division and the straight line where the fourth B projection division is located in the second direction Y is L3; wherein, L1>L3.

[0075] Fig. 9 The second touch lines 302 shown are all second B touch lines 302b, and the second B touch lines 302b may include a fourth B line section 3021b (corresponding to the fourth line section 3021 described above) and a fifth B line section 3022b (corresponding to the fifth line section 3022 described above). The orthographic projection of the fourth B line section 3021b on the plane where the substrate 10 is located is the fourth B projection section, and the orthographic projection of the fifth B line section 3022b on the plane where the substrate 10 is located is the fifth B projection section. Along the second direction Y, the fifth B projection section (fifth B line section 3022b) overlaps with the second projection section 3014, and the fifth B projection section is wound.

[0076] Furthermore, if Fig. 9As shown, along the second direction Y, in the same first touch routing 301, the maximum distance L1 between the straight line where the second projection sub-portion 3014 and the first projection sub-portion 3013 are located can be the distance between the second sub-portion 30122 and the straight line where the first routing sub-portion 3011 are located. In the same second touch routing 302, the maximum distance L3 between the straight line where the fifth B projection sub-portion and the fourth B projection sub-portion are located in the second direction Y can be the distance between the fifth sub-portion 30222 and the straight line where the fourth B routing sub-portion 3021b are located.

[0077] Among them, this embodiment defines: L1>L3, that is, the distance between the second sub-portion 30122 and the straight line where the first routing branch 3011 is located is greater than the distance between the fifth sub-portion 30222 and the straight line where the fourth B routing branch 3021b is located, and the protrusion degree of the second routing branch 3012 in the second direction Y is greater than the protrusion degree of the fifth B routing branch 3022b in the second direction Y. Since the distance between the orthographic projection of the second touch wiring 302 on the plane where the substrate 10 is located and the first projection support structure 202 in the second direction Y is relatively far, the probability of the first support structure 201 causing the second touch wiring 302 to be abnormal is relatively small, and this embodiment can appropriately reduce the degree of the winding protrusion of the second touch wiring 302, improve the impedance increase problem caused by the increase in the length of the second touch wiring 302, and help reduce the loss in the touch signal transmission process.

[0078] The embodiment of the present invention does not limit the specific numerical values ​​of L1, L2 and L3, and those skilled in the art can design them according to actual conditions.

[0079] Above Figure 8 In the illustrated embodiment, the second touch lines 302 are all second A touch lines 302a. Fig. 9 In the illustrated embodiment, the second touch lines 302 are all second touch lines B 302b. In an embodiment not shown in the present invention, the touch display panel may include second touch lines A 302a and second touch lines B 302b at the same time, and the second touch lines A 302a and second touch lines B 302b are designed according to the above embodiment, and the first embodiment of the invention will not describe this scheme in detail.

[0080] Furthermore, Fig.10 A partial structural diagram of another touch display panel provided in an embodiment of the present invention can be referred to Fig.10, the second touch signal line 302 includes an i-th touch signal line 302i and a j-th touch signal line 302j arranged along the second direction Y, and 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 close to the first support structure 201; wherein i and j are both positive integers; the fourth routing section 3021 includes a fourth i-th routing section 3021i located in the i-th touch signal line 302i and a fourth j-th routing section 3021j located in the j-th touch signal line 302j, the fifth routing section 3022 includes a fifth i-th routing section 3022i located in the i-th touch signal line 302i and a fifth j-th routing section 3022j located in the j-th touch signal line 302j; the orthographic projection of the fourth i-th routing section 3021i on the plane where the substrate 10 is located includes a fourth i-th projection section, a fourth j-th routing section 3021i, and a fifth j-th routing section 3021j located in the j-th touch signal line 302j. The orthographic projection of 021j on the plane where the substrate 10 is located includes the fourth j projection division, the orthographic projection of the fifth i routing division 3022i on the plane where the substrate 10 is located includes the fifth i projection division, and the orthographic projection of the fifth j routing division 3022j on the plane where the substrate 10 is located includes the fifth j projection division; the fifth i projection division includes the fifth projection position P5, and the fifth j projection division includes the sixth projection position P6. Along the second direction Y, the fifth projection position P5 overlaps with the sixth projection position P6; the maximum distance between the straight line where the fifth i projection division (fifth i routing division 3022i) and the fourth i projection division (fourth i routing division 3021i) are located in the second direction Y is L4, and the distance between the straight line where the fifth j projection division (fifth j routing division 3022j) and the fourth j projection division (fourth j routing division 3021j) are located in the second direction Y is L5; wherein, L4>L5.

[0081] like Fig.10 As shown, the ith touch signal line 302i and the jth touch signal line 302j are two adjacent second touch traces 302, and the orthographic projection of the jth touch signal line 302j on the plane where the substrate 10 is located is located on the side of the orthographic projection of the ith touch signal line 302i on the plane where the substrate 10 is located away from the first projection support structure 202, that is, the distance between the orthographic projection of the jth touch signal line 302j on the plane where the substrate 10 is located and the first projection support structure 202 is greater than the distance between the orthographic projection of the ith touch signal line 302i on the plane where the substrate 10 is located and the first projection support structure 202.

[0082] The i-th touch signal line 302i and the j-th touch signal line 302j both include a fourth routing section 3021 and a fifth routing section 3022. The fourth routing section 3021 of the i-th touch signal line 302i is the fourth i routing section 3021i, the fifth routing section 3022 of the i-th touch signal line 302i is the fifth i routing section 3022i, the fourth routing section 3021 of the j-th touch signal line 302j is the fourth j routing section 3021j, and the fifth routing section 3022 of the j-th touch signal line 302j is the fifth j routing section 3022j. The fourth j routing section 3021j is located on the side of the fourth i routing section 3021i away from the first routing section 3011, and the fifth j routing section 3022j is located on the side of the fifth i routing section 3022i away from the second routing section 3012. The orthographic projection of the fourth i routing section 3021i on the plane where the substrate 10 is located is the fourth i projection section, the orthographic projection of the fourth j routing section 3021j on the plane where the substrate 10 is located is the fourth j projection section, the orthographic projection of the fifth i routing section 3022i on the plane where the substrate 10 is located is the fifth i projection section, and the orthographic projection of the fifth j routing section 3022j on the plane where the substrate 10 is located is the fifth j projection section.

[0083] Among them, the fifth projection position P5 of the fifth i projection division may be the orthographic projection position of the fifth sub-division 30222 of the fifth i routing division 3022i on the plane where the substrate 10 is located, and the sixth projection position P6 of the fifth j projection division may be the orthographic projection position of the fifth sub-division 30222 of the fifth j routing division 3022j on the plane where the substrate 10 is located. Referring to the above description, the fifth projection position P5 and the sixth projection position P6 overlap along the second direction Y. The maximum distance L4 between the fifth i projection division and the straight line where the fourth i projection division is located in the second direction Y can be regarded as the distance between the fifth projection position P5 and the straight line where the fourth i projection division is located (the distance between the fifth sub-division 30222 of the fifth i routing division 3022i and the straight line where the fourth i routing division 3021i is located), and the maximum distance L5 between the fifth j projection division and the straight line where the fourth j projection division is located in the second direction Y can be regarded as the distance between the sixth projection position P6 and the straight line where the fourth j projection division is located (the distance between the fifth sub-division 30222 of the fifth j routing division 3022j and the straight line where the fourth j routing division 3021j is located). The fifth projection position P5 and the sixth projection position P6 are shown as dots in the figure, which do not represent the actual shapes of the projection positions.

[0084] In this embodiment, L4>L5 can be set, which means that the farther the fifth wiring section 3022 is from the first projection support structure 202 along the second direction Y, the smaller the protrusion degree of the fifth wiring section 3022 is, or in other words, along the direction from the center of the first support structure 201 to its edge in the second direction Y, the protrusion degree of the fifth wiring section 3022 gradually decreases. In this way, the winding uniformity of different second touch wirings 302 can be improved, and the impedance increase problem caused by the increase in the length of the second touch wiring 302 can be avoided to a certain extent.

[0085] Fig.11 A partial structural diagram of another touch display panel provided in an embodiment of the present invention can be referred to Fig.11 In a possible embodiment, the first support structure 201 includes a first A support structure 205 and a first B support structure 206, and along the second direction Y, the first A support structure 205 overlaps with the first B support structure 206; the orthographic projection of the first A support structure 205 on the plane where the substrate 10 is located includes a first A projection support structure 207, and the orthographic projection of the first B support structure 206 on the plane where the substrate 10 is located includes a first B projection support structure 208; the touch display panel also includes a first touch wiring group 3001 and a second touch wiring group 3002 located between the first A support structure 205 and the first B support structure 206 along the second direction Y, the first touch wiring group 3001 and the second touch wiring group 3002 both include multiple second touch wirings 302, and the first touch wiring group 3001 is located on the side of the second touch wiring group 3002 close to the first A support structure 205; the first touch wiring group 3001 Among the multiple second touch routing lines 302 included in the touch routing group 3001, along the second direction Y, at least part of the fifth projection division 3024 is located on the side of the straight line where the fourth projection division 3023 is located, away from the center of the first A projection support structure 207; and along the direction from the first A support structure 205 to the first B support structure 206, the maximum distance between the fifth projection division 3024 and the straight line where the fourth projection division 3023 is located gradually decreases; among the multiple second touch routing lines 302 included in the second touch routing group 3002, along the second direction Y, at least part of the fifth projection division 3024 is located on the side of the straight line where the fourth projection division 3023 is located, away from the center of the first B projection support structure 208; and along the direction from the first B support structure 206 to the first A support structure 205, the maximum distance between the fifth projection division 3024 and the straight line where the fourth projection division 3023 is located gradually decreases.

[0086] like Fig.11As shown, the touch display panel may include a first A support structure 205 and a first B support structure 206 arranged along the second direction Y. The orthographic projection of the first A support structure 205 on the plane where the substrate 10 is located is a first A projection support structure 207, and the orthographic projection of the first B support structure 206 on the plane where the substrate 10 is located is a first B projection support structure 208. Along the second direction Y, the first A support structure 205 and the first B support structure 206 include a first touch wiring group 3001 and a second touch wiring group 3002, and along the second direction Y, the first touch wiring group 3001 and the second touch wiring group 3002 are sequentially located between the first A support structure 205 and the first B support structure 206. The first touch wiring group 3001 and the second touch wiring group 3002 respectively include a plurality of second touch wirings 302.

[0087] Among them, for the second touch routing 302 in the first touch routing group 3001, its fifth projection division 3024 (i.e., the winding area) protrudes toward the side of the first A projection support structure 207 pointing to the first B projection support structure 208. For the second touch routing 302 in the second touch routing group 3002, its fifth projection division 3024 (i.e., the winding area) protrudes toward the side of the first B projection support structure 208 pointing to the first A projection support structure 207. It can also be understood that the winding protrusion direction of the second touch routing 302 in the first touch routing group 3001 is opposite to the winding protrusion direction of the second touch routing 302 in the second touch routing group 3002.

[0088] Furthermore, in the first touch routing group 3001, along the direction from the first A projection support structure 207 to the first B projection support structure 208, the maximum distance between the straight line where the fifth projection division 3024 and the fourth projection division 3023 of each second touch routing group 3002 are located gradually decreases; in the second touch routing group 3002, along the direction from the first B projection support structure 208 to the first A projection support structure 207, the maximum distance between the straight line where the fifth projection division 3024 and the fourth projection division 3023 of each second touch routing group 302 are located gradually decreases. In other words, between two adjacent first support structures 201, in the same touch routing group, along the direction from the first support structure 201 adjacent to the touch routing group to another first support structure 201, the protrusion degree of the fifth routing division 3022 of multiple second touch routing groups 302 gradually decreases. This improves the impedance increase problem caused by the increase in the length of the second touch routing group 302, which is conducive to reducing the loss in the touch signal transmission process.

[0089] Optionally, the number of second touch wirings 302 in the first touch wiring group 3001 and the second touch wiring group 3002 may be the same or different. Fig.11The example shows that the number of the second touch lines 302 is the same, but it is not limited thereto. In addition, the first touch line group 3001 and the second touch line group 3002 each include at least one first touch line 301. In the same touch line group, along the second direction Y, the first touch line 301 is located between the second touch line 302 and the corresponding first support structure 201.

[0090] Continue to refer Fig.11 In some embodiments, a fourth touch line 304 may be further included between the first touch line group 3001 and the second touch line group 3002. The orthographic projection of the fourth touch line 304 on the plane where the substrate 10 is located includes an eighth projection division. Along the first direction X, the eighth projection division does not overlap with the first projection support structure 202 and the second projection support structure 204. The extension direction of each area of ​​the eighth projection division remains unchanged and extends along the first direction X. The fourth touch line 304 does not have a winding division, and it can be used as a transition line from the first touch line group 3001 to the second touch line group 3002.

[0091] Fig.12 A partial structural diagram of another touch display panel provided by an embodiment of the present invention is shown. Fig.13 for Fig.12 The cross-sectional structure diagram along the A-A' direction can be referred to Fig.12 and Fig.13 In a possible embodiment, the plurality of touch traces 30 further include a third touch trace 303, and the third touch trace 303 is located on a side of the first touch trace 301 close to the support structure 20; the third touch trace 303 includes a sixth trace section 3031 and a seventh trace section 3032 arranged along the first direction X, and the sixth trace section 3031 extends along the first direction X; the orthographic projection of the sixth trace section 3031 on the plane where the substrate 10 is located includes a sixth projection section 3033, and the orthographic projection of the seventh trace section 3032 on the plane where the substrate 10 is located includes a seventh projection section 3034. Projection division 3034; at least part of the seventh projection division 3034 is located on the side of the straight line where the sixth projection division 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 routing division 3031 overlaps with the first routing division 3011; the maximum distance between the second projection division 3014 and the straight line where the first projection division 3013 is located in the second direction Y is L1, and the maximum distance between the seventh projection division 3034 and the straight line where the sixth projection division 3033 is located in the second direction Y is L6; wherein, L6>L1.

[0092] In the above embodiment, the first touch wiring 301 , the second touch wiring 302 and the fourth touch wiring 304 are all disposed in the same layer. Fig.12In the illustrated embodiment, the touch wiring 30 further includes a third touch wiring 303 disposed in a different layer from the first touch wiring 301. Fig.12 and Fig.13 As shown, the film layer where the third touch wiring 303 is located can be located between the film layer where the first touch wiring 301 is located and the film layer where the support structure 20 is located. In the thickness direction of the touch display panel, the distance between the third touch wiring 303 and the film layer where the support structure 20 is located is smaller than the distance between the first touch wiring 301 and the film layer where the support structure 20 is located. The third touch wiring 303 and the first touch wiring 301 can transmit the same or different touch signals. Fig.12 The cross-sectional view only shows part of the film layers, and does not show all the film layers of the touch display panel.

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

[0094] like Fig.12 As shown, the routing mode of the sixth routing section 3031 is the same as that of the first routing section 3011. Along the thickness direction of the touch display panel, the sixth routing section 3031 overlaps with the first routing section 3011. The routing mode of the seventh routing section 3032 is the same as that of the second routing section 3012, that is, the third touch routing line 303 is wound at the seventh routing section 3032 to avoid the first support structure 201 for the area, so as to prevent the first support structure 201 from causing the third touch routing line 303 to be abnormal.

[0095] Optionally, the shapes of the seventh routing section 3032 and the second routing section 3012 may be the same or different. Fig.12 The two are shown as having the same shape.

[0096] Among them, this embodiment defines that: the maximum distance L1 between the straight line where the second projection division 3014 and the first projection division 3013 are located in the second direction Y is less than the maximum distance L6 between the straight line where the seventh projection division 3034 and the sixth projection division 3033 are located in the second direction Y, that is, the protrusion degree of the seventh routing division 3032 in the second direction Y is greater than the protrusion degree of the second routing division 3012 in the second direction Y. Since the distance between the third touch routing 303 and the first supporting structure 201 in the thickness direction of the touch display panel is relatively close, the first supporting structure 201 has a greater influence on the third touch routing 303, and therefore the protrusion degree of the winding division in 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 supporting structure 201 on the touch routing 30.

[0097] Optionally, the third touch wiring 303 may be electrically connected to the first touch wiring 301 ; or the third touch wiring 303 may be insulated from the first touch wiring 301 .

[0098] In some embodiments, the third touch line 303 and the first touch line 301 can be connected in parallel. The third touch line 303 and the first touch line 301 transmit the same touch signal. By connecting the two in parallel, the impedance of the first touch line 301 can be reduced, thereby reducing the loss of the touch signal during transmission.

[0099] In other embodiments, the third touch line 303 and the first touch line 301 can be insulated and transmitted different touch signals, for example, one transmits a TX signal and the other transmits an RX signal. In this configuration, the touch lines 30 transmitting the same touch signal are arranged in a touch line layer, which can reduce the number of touch lines 30 in each touch line layer and reduce the wiring difficulty.

[0100] Optional, Fig.14 A partial structural diagram of another touch display panel provided in an embodiment of the present invention can be referred to Fig.14 The second projection section 3014 includes an arbitrarily set first projection position P1 and a second projection position P2; 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 section 3014. Fig.14The first projection position P1 is exemplarily shown as the middle position of the second projection sub-section 3014 along the first direction X, and the second projection position P2 is the position of the second projection sub-section 3014 close to the first projection sub-section 3013, but the actual positional relationship between the two is not limited thereto. 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] Among them, this embodiment defines: |L7-L8| / L7≤20%, that is, the minimum distance between the first projection position P1 and the first projection support structure 202, and the minimum distance between the second projection position P2 and the first projection support structure 202 are close to or equal. In this way, the minimum distance between different positions of the second projection division 3014 and the first projection support structure 202 is close to or the same. The winding of the second wiring division 3012 in the corresponding area of ​​the first support structure 201 is relatively uniform, ensuring that the winding division of the first touch wiring 301 is not affected by the first support structure 201.

[0103] The embodiment of the present invention does not limit the specific values ​​of L7 and L8, and those skilled in the art can set them according to actual conditions.

[0104] For further optional information, please refer to Fig.14 The first projection division 3013 includes an arbitrarily set third projection position P3, and the second projection division 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; wherein, |L9-L10| / L9≤20%.

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

[0106] Among them, this embodiment defines: |L9-L10| / L9≤20%, that is, the line width L9 of the third projection position P3 is similar to or the same as the line width L10 of the fourth projection position P4, and the line width of the first routing section 3011 is similar to or the same as the line width of the second routing section 3012, which is beneficial to improving the impedance consistency of the first touch routing 301, and can ensure that the reflective effect at different positions of the first touch routing 301 is consistent, thereby improving display uniformity.

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

[0108] Fig.14 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 shapes of the projection positions.

[0109] The touch display panel provided in the embodiment of the present invention may further include any structure known to those skilled in the art, which will not be elaborated or limited in the embodiment of the present invention.

[0110] Based on the same inventive concept, an embodiment of the present invention further provides a touch display device. Fig.15 FIG. 1 is a schematic diagram of a touch display device provided by an embodiment of the present invention. Fig.15 As shown, the touch display device includes the touch display panel 1000 provided by any embodiment of the present invention. Therefore, the touch display device provided by the embodiment of the present invention has the corresponding beneficial effects of the touch display panel 1000 provided by the embodiment of the present invention, which will not be repeated here. Exemplarily, the touch display device can be an electronic device such as a mobile phone, a computer, a smart wearable device (for example, a smart watch), and a car display device, which is not limited by the embodiment of the present invention.

[0111] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, combinations and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A touch display panel, characterized in that: It comprises a substrate, a plurality of support structures located on one side of the substrate, and a plurality of touch lines located on a side of the support structures away from the substrate; the plurality of touch lines 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; The plurality of touch lines include a first touch line, the first touch line includes a first line section and a second line section arranged along the first direction, the first line section extends along the first direction; the orthographic projection of the first line section on the plane where the substrate is located includes a first projection section, and the orthographic projection of the second line section on the plane where the substrate is located includes a second projection section; The plurality of support structures include a first support structure, and the orthographic projection of the first support structure on the plane where the substrate is located includes a first projection support structure; Along the first direction, the first projected section overlaps with the first projected support structure, and at least a portion of the second projected section does not overlap with the first projected support structure; Along the second direction, the first projected portion does not overlap with the first projected support structure, and at least a portion of the second projected portion overlaps with the first projected support structure; Along the second direction, at least a portion of the second projection portion is located on a side of the straight line where the first projection portion is located away from the center of the first projection support structure.

2. The touch display panel according to claim 1, characterized in that: The first touch control wiring further includes a third wiring division, the first wiring division, the second wiring division and the third wiring division are arranged along the first direction; the orthographic projection of the third wiring division on the plane where the substrate is located includes a third projection division; The plurality of support structures further include a second support structure, and the first support structure and the second support structure are staggered along the first direction and the second direction; the orthographic projection of the second support structure on the plane where the substrate is located includes a second projection support structure; Along the second direction, at least a portion of the third projection portion overlaps with the second projection support structure, and at least a portion of the third projection portion is located on a side of the straight line where the first projection portion is located away from a center of the second projection support structure.

3. The touch display panel according to claim 2, characterized in that: Along the second direction, the straight line where the first projection division is located is located between the center of the first projection support structure and the center of the second projection support structure; A protruding direction of the second projection portion relative to the straight line where the first projection portion is located is opposite to a protruding direction of the third projection portion relative to the straight line where the first projection portion is located.

4. The touch display panel according to claim 2, characterized in that: Along the second direction, the straight line where the first projection division is located is located on the same side of the center of the first projection support structure and the center of the second projection support structure; A protruding direction of the second projection portion relative to the straight line where the first projection portion is located is the same as a protruding direction of the third projection portion relative to the straight line where the first projection portion is located.

5. The touch display panel according to claim 1, characterized in that: The plurality of touch lines further include a second touch line, and the second touch line and the first touch line are arranged along the second direction; The second touch-control wiring includes a fourth wiring section and a fifth wiring section arranged along the first direction, the fourth wiring section extends along the first direction; the orthographic projection of the fourth wiring section on the plane where the substrate is located includes a fourth projection section, and the orthographic projection of the fifth wiring section on the plane where the substrate is located includes a fifth projection section; Along the first direction, the fourth projected section and the fifth projected section do not overlap with the first projected support structure; Along the second direction, the fourth projected portion does not overlap with the first projected support structure, and at least a portion of the fifth projected portion overlaps with the first projected support structure; Along the second direction, at least a portion of the fifth projection portion is located on a side of the straight line where the fourth projection portion is located away from the center of the first projection support structure.

6. The touch display panel according to claim 5, characterized in that: The second touch routing includes a second A touch routing, the fourth routing section includes a fourth A routing section located in the second A touch routing, the fifth routing section includes a fifth A routing section located in the second A touch routing, the orthographic projection of the fourth A routing section on the plane where the substrate is located includes a fourth A projection section, and the orthographic projection of the fifth A routing section on the plane where the substrate is located includes a fifth A projection section; The maximum distance between the second projection division and the straight line where the first projection division is located in the second direction is L1, and the maximum distance between the fifth projection division and the straight line where the fourth projection division is located in the second direction is L2; Among them, |L1-L2| / L1≤20%.

7. The touch display panel according to claim 5, characterized in that: The second touch-control trace includes a second B touch-control trace, the fourth trace branch includes a fourth B trace branch located in the second B touch-control trace, the fifth trace branch includes a fifth B trace branch located in the second B touch-control trace, the orthographic projection of the fourth B trace branch on the plane where the substrate is located includes a fourth B projection branch, and the orthographic projection of the fifth B trace branch on the plane where the substrate is located includes a fifth B projection branch; The maximum distance between the second projection division and the straight line where the first projection division is located in the second direction is L1, and the maximum distance between the fifth B projection division and the straight line where the fourth B projection division is located in the second direction is L3; Among them, L1>L3.

8. The touch display panel according to claim 7, characterized in that: The second touch signal line includes an i-th touch signal line and a j-th touch signal line arranged along the second direction, and along the second direction, the i-th touch signal line is located on a side of the j-th touch signal line close to the first supporting structure; wherein i and j are both positive integers; The fourth routing section includes a fourth i routing section located in the i-th touch signal line and a fourth j routing section located in the j-th touch signal line, and the fifth routing section includes a fifth i routing section located in the i-th touch signal line and a fifth j routing section located in the j-th touch signal line; the orthographic projection of the fourth i routing section on the plane where the substrate is located includes a fourth i projection section, the orthographic projection of the fourth j routing section on the plane where the substrate is located includes a fourth j projection section, the orthographic projection of the fifth i routing section on the plane where the substrate is located includes a fifth i projection section, and the orthographic projection of the fifth j routing section on the plane where the substrate is located includes a fifth j projection section; The fifth i projection section includes a fifth projection position, the fifth j projection section includes a sixth projection position, and along the second direction, the fifth projection position overlaps with the sixth projection position; The maximum distance between the fifth i projection section and the straight line where the fourth i projection section is located in the second direction is L4, and the distance between the fifth j projection section and the straight line where the fourth j projection section is located in the second direction is L5; Among them, L4>L5.

9. The touch display panel according to claim 8, characterized in that: The first support structure includes a first A support structure and a first B support structure, and along the second direction, the first A support structure overlaps with the first B support structure; the orthographic projection of the first A support structure on the plane where the substrate is located includes the first A projection support structure, and the orthographic projection of the first B support structure on the plane where the substrate is located includes the first B projection support structure; The touch display panel further includes a first touch wiring group and a second touch wiring group located between the first A support structure and the first B support structure along the second direction, the first touch wiring group and the second touch wiring group both include a plurality of the second touch wirings, and the first touch wiring group is located on a side of the second touch wiring group close to the first A support structure; Among the plurality of second touch traces included in the first touch trace group, along the second direction, at least part of the fifth projection division is located on a side of the straight line where the fourth projection division is located away from the center of the first A projection support structure; and along the direction from the first A support structure to the first B support structure, the maximum distance between the fifth projection division and the straight line where the fourth projection division is located gradually decreases; Among the multiple second touch lines included in the second touch line group, along the second direction, at least part of the fifth projection section is located on the side of the straight line where the fourth projection section is located, away from the center of the first B projection support structure; and along the direction from the first B support structure to the first A support structure, the maximum distance between the fifth projection section and the straight line where the fourth projection section is located gradually decreases.

10. The touch display panel according to claim 1, characterized in that: The plurality of touch lines further include a third touch line, and the third touch line is located on a side of the first touch line close to the support structure; The third touch wiring includes a sixth wiring section and a seventh wiring section arranged along the first direction, the sixth wiring section extends along the first direction; the orthographic projection of the sixth wiring section on the plane where the substrate is located includes a sixth projection section, and the orthographic projection of the seventh wiring section on the plane where the substrate is located includes a seventh projection section; at least part of the seventh projection section is located on a side of the straight line where the sixth projection section is located away from the center of the first projection support structure; Along the thickness direction of the touch display panel, the sixth routing section overlaps with the first routing section; the maximum distance between the second projection section and the straight line where the first projection section is located in the second direction is L1, and the maximum distance between the seventh projection section and the straight line where the sixth projection section is located in the second direction is L6; Among them, L6>L1.

11. The touch display panel according to claim 10, characterized in that: The third touch wiring is electrically connected to the first touch wiring; Alternatively, the third touch control wiring is insulated from the first touch control wiring.

12. The touch display panel according to claim 1, characterized in that: The second projection section includes a first projection position and a second projection position which are arbitrarily set; 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; Among them, |L7-L8| / L7≤20%.

13. The touch display panel according to claim 1, characterized in that: The first projection division includes an arbitrarily set third projection position, and the second projection division includes an arbitrarily set fourth projection position; The line width of the third projection position is L9, and the line width of the fourth projection position is L10; Among them, |L9-L10| / L9≤20%.

14. The touch display panel according to claim 1, characterized in that: The touch display panel further includes a display area and a non-display area, and the touch wiring is located in the display area or in 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 to the touch wiring.

15. A touch display device, characterized in that: A touch display panel comprising any one of claims 1 to 14.

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