Display panel and display device

Abstract

Embodiments of the present application disclose a display panel and a display device. The display panel comprises a touch structure, and the touch structure comprises a touch insulating layer. The display panel further comprises a display area and a non-display area, and the non-display area comprises a first non-display area and a bending area. The first non-display area is located between the bending area and the display area. The first non-display area comprises a first sub-non-display area and a second sub-non-display area. In the first sub-non-display area, the touch insulating layer comprises a plurality of touch vias. In the second sub-non-display area, the touch insulating layer comprises a first hollow part, and the first hollow part penetrates through the touch insulating layer. The display panel provided in the embodiments can set the touch insulating layer in the second sub-non-display area as the first hollow part, so that the stress and the water vapor generated in the display panel can be released, and the display panel can avoid film layer peeling caused by the accumulation of the stress and the water vapor, and ensure the display and touch effects of the display panel.

Description

TECHNICAL FIELD

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

[0002] Touch screen as an important component of human-computer interaction has been widely used in mobile phones, tablet computers and other electronic products.

[0003] However, there are still other problems of touch screen that need to be improved. SUMMARY

[0004] The display panel and the display device provided by the embodiments of the present application set a first hollow part in the touch control insulating layer in the second sub-non-display area, and the first hollow part is used as a release channel for water vapor and stress, so as to ensure the display and touch control effects of the display panel.

[0005] In a first aspect, the embodiments of the present application provide a display panel, comprising a touch control structure, wherein the touch control structure comprises a touch control insulating layer.

[0006] The display panel further comprises a display area and a non-display area, wherein the non-display area comprises a first non-display area and a bending area, and the first non-display area is located between the bending area and the display area.

[0007] The first non-display area comprises a first sub-non-display area and a second sub-non-display area, the touch control insulating layer comprises a plurality of touch control vias in the first sub-non-display area, and the touch control insulating layer comprises a first hollow part in the second sub-non-display area, and the first hollow part penetrates the touch control insulating layer.

[0008] In a second aspect, the embodiments of the present application provide a display device, comprising the display panel of the first aspect.

[0009] The display panel provided by the embodiments of the present application comprises a touch control structure, and the touch control structure comprises a touch control insulating layer. Meanwhile, the display panel further comprises a display area and a non-display area, and the non-display area further comprises a first sub-non-display area and a second sub-non-display area. The touch control insulating layer in the second sub-non-display area is provided with a first hollow part, and the first hollow part penetrates the touch control insulating layer. The first hollow part is used as a release channel for water vapor and stress, so that the stress and water vapor generated inside the display panel can be released through the first hollow part, the film layer peeling caused by the accumulation of stress and water vapor is avoided, and the display and touch control effects of the display panel are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description only some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0011] Figure 1 is a structural schematic diagram of a display panel provided by an embodiment of the present application;

[0012] Figure 2 is Figure 1 is an enlarged schematic diagram of the A region in FIG. 1;

[0013] Figure 3 is Figure 2 is a sectional structural schematic diagram along the section line B-B' in FIG. 1;

[0014] Figure 4 is Figure 2 is another sectional structural schematic diagram along the section line B-B' in FIG. 1;

[0015] Figure 5 is Figure 1 is another enlarged schematic diagram of the A region in FIG. 1;

[0016] Figure 6 is Figure 1 is another enlarged schematic diagram of the A region in FIG. 1;

[0017] Figure 7 is Figure 1 is another enlarged schematic diagram of the A region in FIG. 1;

[0018] Figure 8 is Figure 7 is an enlarged schematic diagram of the D region in FIG. 1;

[0019] Figure 9 is Figure 7 is another enlarged schematic diagram of the D region in FIG. 1;

[0020] Figure 10 is Figure 7 is another enlarged schematic diagram of the D region in FIG. 1;

[0021] Figure 11 is Figure 2 is an enlarged schematic diagram of the E region in FIG. 1;

[0022] Figure 12 is Figure 2 is another enlarged schematic diagram of the E region in FIG. 1;

[0023] Figure 13 is Figure 2 is another enlarged schematic diagram of the E region in FIG. 1;

[0024] Figure 14 is Figure 1 is another enlarged schematic view of the A region in FIG.

[0025] Figure 15 is a structural schematic view of a display device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0026] In order to make the personnel in the art better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by the personnel in the art without creative labor should belong to the protection scope of the present application.

[0027] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be exchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a system, product or device including a series of units does not have to be limited to clearly listed steps or units, but can include other units not clearly listed or inherent to these products or devices.

[0028] Figure 1 is a structural schematic view of a display panel provided by an embodiment of the present application, Figure 2 is Figure 1 is an enlarged schematic view of the A region in FIG. Figure 3 is Figure 2 is a cross-sectional structural schematic view along the section line B-B' in FIG. Figure 4 is Figure 2 is another cross-sectional structural schematic view along the section line B-B' in FIG. Figures 1 to 4As shown, the embodiment of the present application provides a display panel 10, the display panel 10 includes a touch structure 300, the touch structure 300 includes a touch insulating layer 310; the display panel 10 further includes a display area 100 and a non-display area 200, the non-display area 200 includes a first non-display area 210 and a bending area 220, the first non-display area 210 is located between the bending area 220 and the display area 100; the first non-display area 210 includes a first sub-non-display area 211 and a second sub-non-display area 212, in the first sub-non-display area 211, the touch insulating layer 310 includes a plurality of touch vias 311, in the second sub-non-display area 212, the touch insulating layer 310 includes a first hollow part 213, the first hollow part 213 penetrates through the touch insulating layer 310.

[0029] Specifically, the display panel 10 includes a display area 100 and a non-display area 200, the non-display area 200 can be a frame area located on one side of the display area 100, and the positional relationship between the display area 100 and the non-display area 200 is not limited in the embodiment of the present application. The display area 100 includes a plurality of sub-pixels and display signal lines such as data signal lines 600 connected to the sub-pixels, and the display signal lines are respectively electrically connected to the sub-pixels and a display driving chip, for transmitting display signals to the sub-pixels, and realizing the display function of the display panel 10. The display panel 10 further includes a touch structure 300, the touch structure 300 includes a touch electrode 350 and a touch trace 312, the touch trace 312 is respectively electrically connected to the touch electrode 350 and a touch driving chip, the touch driving chip feeds back a touch driving signal to the touch electrode 350 through the touch trace 312 and receives a touch sensing signal fed back by the touch trace, thereby realizing the touch function of the display panel 10. Optionally, the touch electrode 350 can be a transparent touch electrode, or the touch electrode 350 can be a metal mesh electrode, so that the light emitted by the sub-pixel arranged below the touch electrode 350 can be emitted through the touch electrode 500. Optionally, the display driving chip and the touch driving chip can be independently arranged or integrally arranged, and the embodiment of the present application does not limit the same, Figure 1 For example, only the display driving chip and the touch driving chip are integrally arranged, such as the driving chip 700 in Figure 1 , that is, a driving chip integrating display function and touch function.

[0030] It should be noted that the embodiment of the present application does not limit the specific arrangement of the touch structure 300, and the touch structure 300 can be in a mutual capacitance form, such as Figure 1As shown, the touch electrode 350 can include a touch driving electrode 351 and a touch sensing electrode 352, wherein two adjacent touch driving electrode blocks are electrically connected by a connection cross-bridge arranged in the same layer, and two adjacent touch sensing electrodes 352 are electrically connected by a connection cross-bridge arranged in different layers. Alternatively, two adjacent touch driving electrodes 351 are electrically connected by a connection cross-bridge arranged in different layers, and two adjacent touch sensing electrodes 352 are electrically connected by a connection cross-bridge arranged in the same layer, which is not limited by the embodiments of the present application. The touch structure 300 can also be in a self-capacitance form. Whether the touch structure 300 is in a self-capacitance form or a mutual-capacitance form, the touch structure 300 needs to transmit a touch signal through a touch trace 312 to ensure that the touch structure 300 normally realizes the touch function.

[0031] It should be noted that for the mutual-capacitance touch structure, a touch insulating layer is arranged between two adjacent touch sensing electrodes or two adjacent touch driving electrodes and the connection cross-bridge arranged in different layers. At this time, a connection via (not shown in the figure) can be arranged in the touch insulating layer in the display area to realize the electrical connection relationship between the two adjacent touch sensing electrodes or the two adjacent touch driving electrodes and the connection cross-bridge arranged in different layers. Alternatively, when the touch electrode and the touch trace are not arranged in the same layer, a connection via (not shown in the figure) can also be arranged in the touch insulating layer in the display area to realize the electrical connection relationship between the touch electrode and the touch trace.

[0032] Specifically, the non-display area 200 includes a first non-display area 210, a bending area 220, and a second non-display area 230. The first non-display area 210 is arranged between the bending area 220 and the display area 100. The bending area 220 is arranged between the first non-display area 210 and the second non-display area 230. For the display panel 10 with the bending area 220, it usually has a flexible substrate, and at least a part of the flexible substrate can be bent or folded. Therefore, when the display device is prepared, the peripheral area of the display panel 10 which does not display patterns is bent or hidden at the back side of the display panel 10, which can reduce the size of the frame area of the display panel 10. The area of the display panel 10 which is bent or folded is the bending area 220 mentioned in the embodiments of the present application, Figure 1The bending area 220 is unfolded and unbent. By bending the traces in the display panel 10 to the non-display and non-touch side of the display panel 10 at the bending area 220, the area of the frame of the display panel 10 can be reduced, the area ratio of the functional area of the display and touch of the display panel 10 can be increased, and the development trend of the narrow frame of the display panel can be met. The second non-display area 230 can be understood as a binding area, that is, the driving chip 700 is bound to the binding terminal provided in the display panel in this area. The first non-display area 210 is provided with connection traces connected between the driving chip 700 and the display units in the display area 100 and the non-display area 200. Various display signals provided by the driving chip 700 can be normally transmitted to the display units in the display area 100 and the non-display area 200 through the connection traces, so as to ensure the normal work of the display panel.

[0033] Specifically, the first non-display area 210 includes a first sub-non-display area 211. As shown in Figure 2 , the touch insulating layer 310 includes a plurality of touch vias 311 in the first sub-non-display area 211, and the number and shape of the touch vias 311 are not specifically limited in the embodiments of the present application. As shown in Figure 3 and Figure 4 , the touch structure 300 further includes a first touch layer 330 and a second touch layer 340. The first touch layer 330 or the second touch layer 340 can be electrically connected to the touch signal transmission structure 313 at the bending area 220 through the touch via 311. The touch signal transmission structure 313 is electrically connected to the driving chip 700 located in the second non-display area 230 through the bending area 220, so as to realize the transmission of the touch driving signal and the touch sensing signal. It can be understood that the touch signal transmission structure 313 needs to be bent at the bending area 220, so the material of the touch signal transmission structure 313 can be a metal film layer with good ductility, such as titanium-aluminum-titanium. In this way, the touch signal transmission structure 313 bent to the non-display and non-touch side of the display panel 10 will not affect the transmission of the signal, so as to ensure the stable transmission of the touch signal. As shown in Figure 3 , the second touch layer 340 is electrically connected to the touch signal transmission structure 313 through the touch via 311, and as shown in Figure 4 , the first touch layer 330 is electrically connected to the touch signal transmission structure 313 through the touch via 311, and the specific connection mode is not limited in the embodiments of the present application. As shown in Figure 1As shown in the mutual capacitive touch structure, the first touch layer 330 can be a film layer in which the touch driving electrodes 351 and the touch sensing electrodes 352 are located, and the second touch layer 340 can be a film layer in which the connection bridges between two adjacent touch driving electrodes 351 or two adjacent touch sensing electrodes 352 are located. Alternatively, the first touch layer 330 can be a film layer in which the connection bridges between two adjacent touch driving electrodes 351 or two adjacent touch sensing electrodes 352 are located, and the second touch layer 340 can be a film layer in which the touch driving electrodes 351 and the touch sensing electrodes 352 are located. In other words, the first touch layer 330 and the second touch layer 340 can be one of the touch electrode layer and the connection bridge layer, and the present embodiment does not limit the same.

[0034] It should be noted that, as shown in Figure 3 and Figure 4 , the display panel 10 provided by the embodiment of the present application can further include a substrate 130, a buffer layer 111, an inorganic insulating layer 121, an organic insulating layer 112, a third metal layer 113, a planarization layer 114, a pixel definition layer 115, a light-emitting layer 116, a cathode layer 117, an inorganic encapsulating layer 118, an organic encapsulating layer 119, and a touch buffer layer 320, and the related person skilled in the art can adaptively adjust the film layers based on the actual needs, and the embodiment of the present application does not limit the same.

[0035] Further, the first non-display area 210 includes a second sub-non-display area 212, as shown in Figure 2 , the touch insulating layer 310 in the second sub-non-display area 212 includes a first hollow part 213, and the first hollow part 213 penetrates through the touch insulating layer 310. In other words, by setting the first hollow part 213, it is ensured that the touch insulating layer 310 located in the second sub-non-display area 212 is not a film layer structure with an integral surface, and there is a hollow area. There are organic film layers and inorganic film layers in the display panel 10, and the interface stress between the inorganic film layers and the organic film layers does not match, which can cause stress differences between different film layers. The touch insulating layer 310 is provided with the first hollow part 213, and the stress differences generated between different film layers can be released at the first hollow part 213, avoiding the peeling of the film layers, and ensuring the display effect and touch effect of the display panel 10. At the same time, there is a water washing link in the preparation process of the display panel 10, and by setting the first hollow part 213 in the touch insulating layer 310, the generated water vapor can be released through the first hollow part 213, avoiding the corrosion of the water vapor to other metal film layers, and also avoiding the peeling of the film layers in the display panel 10 due to the water vapor, and ensuring the stability of the display panel 10.

[0036] It should be noted that, as shown in Figure 2As shown, the first sub-non-display area 211 and the second sub-non-display area 212 both refer to partitions of the first non-display area 210, and not to partitions defining the display 100 and the bending area 120. For ease of illustration, the reference numerals for the first sub-non-display area 211 and the second sub-non-display area 212 are shown at the edges of the figures. These reference numerals will continue to be used in subsequent figures and will not be described further. In summary, the display panel provided by this embodiment of the invention, by providing a first hollow portion in the touch insulating layer located in the second sub-non-display area, uses the first hollow portion as a channel for releasing moisture and stress, ensuring that stress and moisture generated inside the display panel can be released, thereby avoiding the accumulation of stress and moisture that could cause film peeling, and ensuring the display and touch effects of the display panel.

[0037] Figure 5 yes Figure 1 Another enlarged diagram of region A in the middle, see reference. Figure 1 , Figure 2 and Figure 5 As shown, the display panel 10 also includes a gate driving circuit 400 and a gate driving signal line 410 connected to the gate driving circuit 400; the gate driving signal line 410 includes a first gate driving line portion 411 disposed in the first non-display area 210 and a second gate driving line portion 412 disposed in the bending area 220, the first gate driving line portion 411 and the second gate driving line portion 412 are disposed in different layers and are electrically connected through a first connecting via 510; the second sub-non-display area 212 includes a first sub-area 212A, the first connecting via 510 is disposed in the first sub-area 212A; and in the first sub-area 212A, the first cutout portion 213 includes at least one first sub-cutout portion 213A.

[0038] Among them, reference Figure 1 , Figure 2 and Figure 5 As shown, the display panel 10 also includes a gate drive circuit 400, such as a shift register. The display panel also includes a gate drive signal line 410, one end of which is electrically connected to the gate drive circuit 400, and the other end is electrically connected to the driver chip 700. The driver chip 700 provides gate drive signals through the gate drive signal line 410, such as a high-level signal VGH, a low-level signal VGL, an enable signal STV, and clock signals CK and XCK, ensuring that the gate drive circuit 400 can operate normally.

[0039] Further, the gate driving signal line 410 includes a first gate driving line part 411 and a second gate driving line part 412, the first gate driving line part 411 is arranged in the first non-display area 210, the second gate driving line part 412 is arranged in the bending area 220, and the second gate driving line part 412 can extend to the second non-display area 230 in the bending area 220, and the first gate driving line part 411 and the second gate driving line part 412 are located at different film layer positions of the display panel 10. Further, referring to Figure 2 and Figure 5 As shown, the first gate driving line part 411 and the second gate driving line part 412 of different film layers are connected across layers by arranging the first connection via hole 510, which ensures the stable transmission of signals between the gate driving circuit 400 and the driving chip 700 in the first non-display area 210 and the bending area 220 of the display panel 10.

[0040] Specifically, referring to Figure 3 and Figure 4 As shown, no inorganic insulating layer 121 is arranged in the bending area 220, that is, part of the inorganic insulating layer 121 is removed in the bending area 220, the thickness of the bending area 220 is reduced, and the removed inorganic insulating layer 121 can be filled with a stress-relieving organic insulating layer 112, which on the one hand facilitates the bending of the bending area 220 and prevents cracks and other conditions from occurring when the bending area 220 is bent, and on the other hand compensates for the height difference of the display panel in the area where the inorganic insulating layer 121 is removed through the organic insulating layer 112, which is conducive to the planarization of different areas of the display panel. For example, the inorganic insulating layer 121 can be an interlayer insulating layer, a gate insulating layer, and a buffer insulating layer, etc., and the organic insulating layer 112 can be selected from at least one material of propylene aldehyde, methyl propylene aldehyde, polyester, polyethylene, polypropylene, polyethylene terephthalate, polyethylene naphthalate, polycarbonate, polyimide, polyvinyl sulfonate, polyformaldehyde, polyarylate, and hexamethyl disiloxane. The present embodiment does not specifically limit the specific film layer composition of the inorganic insulating layer and the material of the organic insulating layer. Further, the second gate driving line part 412 located in the bending area 220 can be arranged on a metal film layer with good ductility, and based on the removal of the inorganic insulating layer 121 in the bending area 220, the second gate driving line part 412 can be better bent to the non-display and non-touch side of the display panel 10, without affecting the signals transmitted on the second gate driving line part 412, thereby ensuring the stable transmission of signals in the second gate driving line part 412. Further, the principle of ensuring the signal transmission effect in the bending area 220 after the line change of other lines in the first non-display area 210 is the same, and is not described here. The present embodiment does not specifically limit the specific arrangement position of the first gate driving line part 411 and the second gate driving line part 412.

[0041] Further, referring to Figure 2 and Figure 5 As shown in FIG. 13, the second sub-non-display area 212 includes a first sub-area 212A, wherein the first connecting via hole 510 for connecting the first gate driving line section 411 and the second gate driving line section 412 is arranged in the first sub-area 212A. Further, the part of the touch insulation layer 310 in the first sub-area 212A includes at least one first sub-hollow part 213A. By arranging the first sub-hollow part 213A, the water vapor and pressure existing in the display panel 10 can be released through the first sub-hollow part 213A, avoiding the film layer peeling, and also avoiding the water vapor corroding the second gate driving line section 412, thereby ensuring the stable transmission of signals in the display panel 10 and ensuring the stability of the display panel 10.

[0042] It should be noted that the display panel provided by the embodiment of the present application further includes a positive power signal line (such as PVDD, not specifically shown in the figure), a negative power signal line (such as PVEE, not specifically shown in the figure), and a crack detection signal line (not specifically shown in the figure), and the positive power signal line, the negative power signal line, and the crack detection signal line each include a wire section in the first non-display area and a wire section in the bending area, and the wire section in the first non-display area and the wire section in the bending area are arranged in different layers and are electrically connected through a third connecting via hole (not specifically shown in the figure). The third connecting via hole is arranged in the first sub-area in the same way as the first connecting via hole. By arranging the first sub-hollow part in the first sub-area, the water vapor and pressure existing in the display panel are released through the first sub-hollow part, avoiding the film layer peeling, and also avoiding the water vapor corroding the positive power signal line, the negative power signal line, and the crack detection signal line, thereby ensuring the stable transmission of signals in the display panel and ensuring the normal work of the display panel.

[0043] Referring to Figure 5 As shown in FIG. 13, along the thickness direction of the display panel 10, the first sub-hollow part 213A covers at least the first sub-area 212A.

[0044] Wherein, referring to Figure 5As shown, the touch insulation layer 310 located in the first sub-area 212A includes a first sub-hollow part 213A, and the first sub-hollow part 213A can cover the first sub-area 212A, that is, along the thickness direction of the display panel 10, the vertical projection of the first sub-hollow part 213A can overlap the vertical projection of the first sub-area 212A. Further, the touch insulation layer 310 at the first sub-area 212A can be only the first sub-hollow part 213A, that is, the touch insulation layer 310 is completely hollowed out at the first sub-area 212A, and there is no touch insulation layer 310 at the first sub-area 212A. By not setting the touch insulation layer 310 at the first sub-area 212A, that is, only in the form of the first sub-hollow part 213A, the discharge of water vapor in the display panel 10 can be further ensured, and the pressure in the display panel 10 can be better released, ensuring the stability of the display panel 10. Alternatively, the touch insulation layer 310 at the first sub-area 212A can be partially provided with the first sub-hollow part 213A, that is, the touch insulation layer 310 is partially hollowed out at the first sub-area 212A, and there is part of the touch insulation layer 310 at the first sub-area 212A. By setting part of the touch insulation layer 310 at the first sub-area 212A, on the one hand, the discharge of water vapor in the display panel 10 is ensured, and on the other hand, the touch insulation layer 310 provides effective support and protection for the area.

[0045] It should be noted that along the thickness direction of the display panel 10 can refer to the thickness direction of the touch insulation layer 310 arranged in the non-bending area of the display panel 10, or the vertical light-emitting direction of the non-bending display area of the display panel 10, etc. Moreover, the thickness direction of the display panel in the following embodiments can be understood in this way, and will not be described in detail hereinafter.

[0046] Continuing to refer to Figure 2 As shown, the first sub-area 212A is provided with a plurality of first sub-hollow parts 213A and a plurality of first insulation parts 214A; along the thickness direction of the display panel 10, the first sub-hollow part 213A at least partially overlaps the first connection via 510, and the first insulation part 214A at least partially overlaps the gap between the adjacent two first connection vias 510.

[0047] Specifically, the first sub-area 212A includes a plurality of first sub-hollow parts 213A and a plurality of first insulation parts 214A, the first sub-hollow part 213A hollows out the touch insulation layer 310 located in the first sub-area 212A, that is, penetrates through the touch insulation layer 310, and the first insulation part 214A is a reserved area of the touch insulation layer 310 in the first sub-area 212A. Further, referring to Figure 2As shown, along the thickness direction of the display panel 10, the first sub-hollow part 213A at least partially overlaps with the first connecting via 510, that is, the vertical projection of the first sub-hollow part 213A and the vertical projection of the first connecting via 510 overlap, which can avoid the transmission of water vapor to the first connecting via 510, that is, avoid corroding the wire passing through the first connecting via 510, and ensure stable signal transmission of the display panel 10. Meanwhile, referring to Figure 2 As shown, along the thickness direction of the display panel 10, the first insulating part 214A can be located at the gap between the two adjacent first connecting vias 510, that is, the vertical projection of the first insulating part 214A and the vertical projection of the first connecting via 510 do not overlap, and the protection function of the film layer below and the support function of the film layer above are realized through the first insulating part 214A, which ensures the stable structure of the display panel 10.

[0048] Continuing to refer to Figure 2 and Figure 5 As shown, the second sub-non-display area 212 includes a second sub-area 212B, and in the second sub-area 212B, the first hollow part 213 includes a plurality of second sub-hollow parts 213B; in the second sub-area 212B, the touch insulation layer 300 further includes a plurality of second insulating parts 214B.

[0049] Among them, the second sub-non-display area 212 further includes a second sub-area 212B, and in the second sub-area 212B, there are a plurality of second sub-hollow parts 213B and a plurality of second insulating parts 214B, and the number and shape of the second sub-hollow part 213B and the second insulating part 214B are not specifically limited in the embodiments of the application. Specifically, the second sub-hollow part 213B is to hollow the touch insulation layer 310 in the second sub-area 212B, that is, to penetrate the touch insulation layer 310, and the second insulating part 214B is the reserved area of the touch insulation layer 310 in the second sub-area 212B. By providing a plurality of second sub-hollow parts 213B, the water vapor or pressure generated inside the display panel 10 can be released, ensuring the stability of the display panel 10 and the stability of signal transmission, that is, better realizing the display and touch effect of the display panel 10. Further, the plurality of second insulating parts 214B have the effect of supporting and protecting other film layers in the second sub-area 212B, and ensure the good overall stability of the display panel 10.

[0050] Figure 6 is Figure 1 Another enlarged schematic view of the A area in Figure 1 and Figure 6As shown, the display area 100 includes a plurality of data signal lines 600; the display panel 10 further includes a plurality of data transmission lines 610 in the second sub-area 212B, the data transmission lines 610 are disposed in a layer different from the data signal lines 600 and are electrically connected through the second connection via 520; in the thickness direction of the display panel 10, the second sub-hollow part 213B at least partially overlaps the second connection via 520, and the second insulating part 214B at least partially overlaps the gap between the adjacent two second connection vias 520.

[0051] Among them, the display area 100 further includes a plurality of data signal lines 600, and a plurality of data transmission lines 610 are further included in the second sub-area 212B of the second sub-non-display area 212. Specifically, the data signal lines 600 are electrically connected with the sub-pixels in the display area 100, the data signal lines 600 are electrically connected with the data transmission lines 610, and the data transmission lines 610 are further electrically connected with the driving chip 700 for emitting display signals, so as to realize driving and light emitting of the sub-pixels in the display area 100 and ensure the display function of the whole display panel 10.

[0052] Further, the data signal lines 600 and the data transmission lines 610 are not disposed in the same layer, and the two kinds of signal lines can be electrically connected across the film layer through the second connection via 520, so as to ensure the stability of signal transmission. For example, referring to Figure 5 As shown, in the thickness direction of the display panel 10, the vertical projection of the second sub-hollow part 213B partially overlaps the vertical projection of the second connection via 520. Further, in the thickness direction of the display panel 10, the vertical projection of the second sub-hollow part 213B and the vertical projection of the second connection via 520 can both overlap, for example, referring to Figure 6As shown. Further, if there are n second sub-cutout portions 213B within a unit area of ​​the second sub-region 212B, to ensure that the vertical projection of the second sub-cutout portion 213B overlaps with the vertical projection of the second connecting via 520, n second connecting vias 520 are provided in the second sub-region 212B, where n is a positive integer. This embodiment of the invention does not impose a specific limitation on this. The second sub-cutout portion 213B is a cutout of the touch insulating layer 310 located in the second sub-region 212B, i.e., penetrating the touch insulating layer 310. The second insulating portion 214B is the area where the touch insulating layer 310 is retained in the second sub-region 212B. The second sub-cutout 213B at least partially overlaps with the second connecting via 520, meaning the vertical projection of the second sub-cutout 213B overlaps with the vertical projection of the second connecting via 520. This prevents moisture from being transmitted to the second connecting via 520, thus preventing corrosion of the traces passing through the second connecting via 520 and ensuring stable signal transmission of the display panel 10. Simultaneously, along the thickness direction of the display panel 10, the second insulating portion 214B can be located in the gap between two adjacent second connecting vias 520, meaning the vertical projection of the second insulating portion 214B does not overlap with the vertical projection of the second connecting via 520. The second insulating portion 214B provides protection for the underlying film layer and supports the upper film layer, ensuring the structural stability of the display panel 10.

[0053] Figure 7 yes Figure 1 Another enlarged diagram of region A in the middle, see reference. Figure 1 , Figure 6 and Figure 7 As shown, the touch structure 300 also includes touch traces 312; the display panel 10 also includes a touch signal transmission structure 313 located in the first sub-non-display area 211. The touch signal transmission structure 313 and the touch traces 312 are disposed on different layers and are electrically connected through the touch via 311; in the first sub-non-display area 211, the touch insulating layer 310 includes a second cutout portion 215, which penetrates the touch insulating layer 310.

[0054] The touch structure 300 further includes a touch wire 312 and a touch signal transmission structure 313 located in the first sub-non-display area 211. Specifically, the touch signal transmission structure 313 includes a transmission part located in the first sub-non-display area 211 and a transmission part located in the bending area, and the transmission part located in the first sub-non-display area 211 and the transmission part located in the bending area are arranged in the same layer and integrally, forming a complete touch signal transmission structure. In the touch signal transmission structure 313, the transmission part located in the first sub-non-display area 211 is electrically connected to the touch wire 312 through the touch via 311 to realize touch signal transmission, and the transmission part located in the bending area 220 is bent to the non-display side or the non-touch side of the display panel and is used to be electrically connected to the driving chip. The driving chip 700 provides a touch driving signal to the touch driving electrode 351 through the touch signal transmission structure 313 and the touch wire 312 and receives a touch sensing signal fed back by the touch sensing electrode 352, thereby realizing the touch function of the display panel 10.

[0055] Further, in the first sub-non-display area 211, the touch insulating layer 310 includes a second hollow part 215, and the second hollow part 215 penetrates the touch insulating layer 310. In other words, by arranging the second hollow part 215 in the first sub-non-display area 211, it is ensured that the touch insulating layer 310 located in the first sub-non-display area 211 is also not a whole film layer structure, and there is a hollow area. The stress difference generated between different film layers can be released at the second hollow part 215, and the second hollow part 215 can also be used as a water vapor release channel to avoid the peeling of the film layer due to the action of water vapor or pressure, thereby ensuring the structural stability of the display panel 10, and further ensuring the display and touch functions of the display panel 10.

[0056] Continuing to refer to Figure 7 As shown, at least one second hollow part 215 is multiplexed as a touch via 311.

[0057] Further, the second hollow part 215 penetrates the touch insulating layer 310, and the touch via 311 also penetrates the touch insulating layer 310, so as to realize the cross-hole electrical connection of the touch wire 312 and the touch signal transmission structure 313 located in different film layers. Referring to Figure 7 As shown, based on the fact that the second hollow part 215 and the touch via 311 both penetrate the touch insulating layer 310, and the touch via 311 and the second hollow part 215 overlap in the thickness direction of the display panel 10, at least one second hollow part 215 can be multiplexed as a touch via 311. Multiplexing the second hollow part 215 as the touch via 311 can reduce the preparation process degree of the display panel 10 and save costs.

[0058] It should be noted that since the second hollow part 215 is a hollow part arranged in the touch insulation layer 310, the touch via hole 311 includes a via hole arranged in the touch insulation layer 310 and a via hole arranged in other film layers, for example, a via hole arranged in the touch buffer layer. Therefore, the at least one second hollow part 215 is multiplexed as the touch via hole 311, which can be understood as the at least one second hollow part 215 being multiplexed as the touch via hole 311 for the hollow part and the via hole arranged in the touch insulation layer 310, that is, the second hollow part 215 and the touch via hole 311 arranged in the touch insulation layer 310 are an integral structure.

[0059] On the basis of the above-mentioned embodiments, Figure 8 Figure 7 is an enlarged schematic view of the D region in FIG. 8, and reference is made to Figure 8 It is shown that in any two touch wires 312, the touch wire 312 with a longer extension length is the first touch wire 312A, and the touch wire 312 with a shorter extension length is the second touch wire 312B. The first touch wire 312A is electrically connected to the touch signal transmission structure 313 through the first touch via hole 311A, and the second touch wire 312B is electrically connected to the touch signal transmission structure 313 through the second touch via hole 311B. A plurality of second hollow parts 215 are arranged in the first sub-non-display area 211, the plurality of second hollow parts 215 extend along the first direction X and are arranged along the second direction Y. The first direction X is parallel to the direction in which the display area 100 points to the non-display area 200, and the second direction Y intersects the first direction X. The plurality of second hollow parts 215 include third sub-hollow parts 215A and fourth sub-hollow parts 215B. At least one third sub-hollow part 215A is multiplexed as the first touch via hole 311A, and at least one fourth sub-hollow part 215B is multiplexed as the second touch via hole 311B. The sheet resistance of the touch signal transmission structure 313 is less than the sheet resistance of the touch wire 312. The first touch via hole 311A is located on the side of the second touch via hole 311B close to the display area 100. Along the first direction X, the extension length of the third sub-hollow part 215A is greater than the extension length of the fourth sub-hollow part 215B.

[0060] Specifically, the touch structure 300 includes a plurality of touch wires 312, wherein there are touch wires 312 with different extension lengths, and reference is made to Figure 8 It is shown that the extension length of the first touch wire 312A is greater than the extension length of the second touch wire 312B. The extension length can be the sum of the wire lengths of the touch wire 312 along the first direction X and the second direction Y. For example, the wire length of the touch wire 312 close to the edge area of the display panel 10 is relatively long, or the wire length of the touch wire 312 connected to the touch electrode away from the side of the first non-display area 210 is relatively long. Exemplarily, reference is made to Figure 8 ​The first touch trace 312A is closer to the edge than the second touch trace 312B, meaning the first touch trace 312A is longer. Furthermore, the touch via 311 includes a first touch via 311A ​​and a second touch via 311B. The first touch trace 312A is electrically connected to the touch signal transmission structure 313 through the first touch via 311A, and the second touch trace 312B is electrically connected to the touch signal transmission structure 313 through the second touch via 311B, thereby enabling touch signal transmission of the display panel 10 and ensuring the touch functionality of the display panel 10.

[0061] Further reference Figure 8 As shown, the first sub-non-display area 211 is provided with multiple second cutout portions 215. By providing the second cutout portions 215, the pressure generated in the first sub-non-display area 211 can be released, and the second cutout portions 215 can also serve as moisture release channels to ensure the working stability of the display panel 10. Furthermore, the second cutout portions 215 include a third sub-cutout portion 215A and a fourth sub-cutout portion 215B. Since both the touch via 311 and the second cutout portion 215 penetrate the touch insulating layer 310, the third sub-cutout portion 215A is reused as the first touch via 311A, and the fourth sub-cutout portion 215B is reused as the second touch via 311B, thereby reducing the manufacturing process and manufacturing cost of the display panel 10.

[0062] Furthermore, since the extension length of the first touch trace 312A is greater than that of the second touch trace 312B, the transmission loss of the touch signal in the first touch trace 312A is greater than that in the second touch trace 312B. Both the touch signal transmission structure 313 and the touch trace 312 possess sheet resistance, also known as thin-film resistance, which is the resistance value per unit thickness and unit area of ​​the conductive material. The sheet resistance of the touch signal transmission structure 313 and the touch trace 312 differs due to different choices of metal materials or differences in the film thickness of the two structures. For example, if both the touch signal transmission structure 313 and the touch trace 312 are made of titanium-aluminum-titanium material, but the thicknesses of the titanium and aluminum metal layers are different, resulting in differences in the sheet resistance of the touch signal transmission structure 313 and the touch trace 312, this embodiment of the invention does not impose specific limitations on this. Specifically, the sheet resistance of the touch signal transmission structure 313 is less than that of the touch trace 312. Therefore, by adjusting the position of the touch via connecting the touch trace 312 and the touch signal transmission structure 313, the transmission loss of the touch signal on different transmission paths is ensured to be the same or similar. Specifically, refer to... Figure 8As shown, the first touch via hole 311A is located on the side of the second touch via hole 311B close to the display area 100, that is, the touch signal transmitted by the first touch trace 312A can be transmitted more in the touch signal transmission structure 313 than the touch signal transmitted by the second touch trace 312B, and the smaller transmission loss in the touch signal transmission structure 313 compensates for the larger transmission loss of the first touch trace 312A, so as to ensure that the transmission losses of the touch signals in different transmission paths are the same or similar. Further, the at least one third sub-hollow part 215A is multiplexed as the first touch via hole 311A, and the at least one fourth sub-hollow part 215B is multiplexed as the second touch via hole 311B, so that the extension length of the third sub-hollow part 215A can be set to be greater than the extension length of the fourth sub-hollow part 215B, thereby ensuring that the touch signal in the first touch trace 312A is transmitted more in the touch signal transmission structure 313, and the transmission loss difference of the touch signal in different transmission channels is compensated, and the overall touch effect of the display panel is balanced.

[0063] Figure 9 is Figure 7 Another enlarged schematic view of the D area in FIG. 11A is shown in FIG. 11B. Figure 9 As shown, in any two touch traces 312, the touch trace 312 with a longer extension length is the first touch trace 312A, and the touch trace 312 with a shorter extension length is the second touch trace 312B. The first touch trace 312A is electrically connected to the touch signal transmission structure 313 through the first touch via hole 311A, and the second touch trace 312B is electrically connected to the touch signal transmission structure 313 through the second touch via hole 311B. A plurality of second hollow parts 215 are arranged in the first non-display area 211, the plurality of second hollow parts 215 extend along the first direction X and are arranged along the second direction Y. The first direction X is parallel to the direction in which the display area 100 points to the non-display area 200, and the second direction Y intersects the first direction X. The sheet resistance of the touch signal transmission structure 313 is less than the sheet resistance of the touch trace 312. The first touch via hole 311A is located on the side of the second touch via hole 311B close to the display area. Along the first direction X, the extension lengths of any two second hollow parts 215 are the same.

[0064] Further, since the extension length of the first touch trace 312A is greater than the extension length of the second touch trace 312B, the transmission loss of the touch signal in the first touch trace 312A is greater than the transmission loss in the second touch trace 312B. Since the sheet resistance of the touch signal transmission structure 313 is less than the sheet resistance of the touch trace 312, the position of the touch via hole connecting the touch trace 312 and the touch signal transmission structure 313 is adjusted to ensure that the transmission losses of the touch signals in different transmission paths are the same or similar. Specifically, refer to FIG. 11B. Figure 9As shown, the first touch via 311A ​​is located on the side of the second touch via 311B closest to the display area 100. This means that the touch signal transmitted by the first touch trace 312A can be transmitted more extensively within the touch signal transmission structure 313 compared to the touch signal transmitted by the second touch trace 312B. The smaller transmission loss in the touch signal transmission structure 313 compensates for the larger transmission loss of the first touch trace 312A, ensuring that the transmission loss of the touch signal is the same or similar on different transmission paths. Furthermore, by adjusting the position of the touch via 311, the second cutout portion 215 of the same extension length is correspondingly adjusted at different positions. This ensures that the second cutout portion 215 can cover the touch via 311, while also maintaining a simple arrangement of the second cutout portion 215, reducing the manufacturing cost of the display panel 10.

[0065] Figure 10 yes Figure 7 Another enlarged diagram of region D in the middle, see reference. Figure 10 As shown, in any two touch traces 312, the touch trace 312 with a longer extension length is the first touch trace 312A, and the touch trace 312 with a shorter extension length is the second touch trace 312B. The first touch trace 312A is electrically connected to the touch signal transmission structure 313 through the first touch via 311A, and the second touch trace 312B is electrically connected to the touch signal transmission structure 313 through the second touch via 311B. A plurality of second cutout portions 215 are provided in the first sub-non-display area 211. The plurality of second cutout portions 215 extend along the first direction X and are arranged along the second direction Y. The direction X is parallel to the direction from the display area 100 to the non-display area 200, and the second direction Y intersects the first direction X; the plurality of second cutout portions 215 include a third sub-cutout portion 215A and a fourth sub-cutout portion 215B; at least one third sub-cutout portion 215A is reused as a first touch via 311A, and at least one fourth sub-cutout portion 215B is reused as a second touch via 311B; the opening size of the first touch via 311A ​​is larger than the opening size of the second touch via 311B, and along the second direction Y, the extension width of the third sub-cutout 215A is larger than the extension width of the fourth sub-cutout 215B.

[0066] Furthermore, since the extension length of the first touch trace 312A is greater than the extension length of the second touch trace 312B, the transmission loss of the touch signal in the first touch trace 312A is greater than the transmission loss in the second touch trace 312B. Also, since the sheet resistance of the touch signal transmission structure 313 is less than the sheet resistance of the touch trace 312, by adjusting the size of the touch via connecting the touch trace 312 and the touch signal transmission structure 313, the transmission loss of the touch signal on different transmission paths can be kept the same or similar. Specifically, refer to... Figure 10As shown, the opening size of the first touch via hole 311A is larger than that of the second touch via hole 311B, and the resistance value difference of different touch via holes 311 is realized by adjusting the size of the opening size. Since the extension length of the first touch trace 312A is longer, the resistance value at the first touch via hole 311A is realized based on the adjustment of the opening size of the touch via hole 311, the transmission loss is reduced, the transmission loss of the touch signal on different transmission paths is the same or similar, and the stability of the display panel 10 as a whole is ensured. Further, the size of the opening size of the touch via hole 311 is adjusted, and the third sub-hollow part 215A is reused as the first touch via hole 311A, and the fourth sub-hollow part 215B is reused as the second touch via hole 311B. Therefore, the size of the third sub-hollow part 215A and the fourth sub-hollow part 215B is adaptively adjusted. Specifically, along the second direction Y, the extension width of the third sub-hollow 215A is greater than that of the fourth sub-hollow 215B, that is, d1 is greater than d2 in the figure, so as to ensure that the second hollow part 215 can cover the touch via hole, and also ensure that the setting mode of the hollow part is simple, and the process cost of the display panel 10 is reduced.

[0067] Figure 11 is Figure 2 an enlarged schematic view of the E region in FIG. Figure 12 is Figure 2 another enlarged schematic view of the E region in FIG. Figure 13 is Figure 2 another enlarged schematic view of the E region in FIG. Figures 11 to 13 As shown, in a unit area, the sum of the hollow areas of the first hollow part 213 in the second sub-non-display area 212 close to the display area 100 is less than the sum of the hollow areas of the first hollow part 213 in the second sub-non-display area 212 away from the display area 100.

[0068] As shown, in a unit area, the sum of the hollow areas of the first hollow part 213 in the second sub-non-display area 212 close to the display area 100 is less than the sum of the hollow areas of the first hollow part 213 in the second sub-non-display area 212 away from the display area 100.

[0069] Specifically, referring to Figures 11 to 13As shown, since the film layer on the side of the second sub-non-display area 212 away from the display area 100 is more prone to peeling due to stress and moisture, the sum of the cutout areas of the first cutout portions 213 in the second sub-non-display area 212 near the display area 100 is set to be less than the sum of the cutout areas of the first cutout portions 213 in the second sub-display area 212 away from the display area 100. That is, by increasing the sum of the cutout areas of the touch insulating layer 310 on the side away from the display area 100, the release of pressure and moisture is better guaranteed, thus ensuring the structural stability of the display panel 10.

[0070] For example, with Figure 11 For example, Figure 11 Regions n1 and n2 are of equal area, with region n1 being closer to the display area 100 than region n2. The sum of the cutout areas in region n1 is less than the sum of the cutout areas in region n2. It should be noted that... Figure 11 The first hollow area 213 of a triangle is used as an example for illustration. In reality, the shape and size of the first hollow area 213 are diverse, such as a regular trapezoid. This embodiment of the invention does not impose a specific limitation on this.

[0071] It should also be noted that, Figures 11 to 13 The image is only used to illustrate the arrangement of the cutout area of ​​the touch insulating layer 310, while the connecting vias and traces are not shown.

[0072] Furthermore, the sum of the cutout areas can also exhibit a gradual trend, as shown in the reference. Figure 12 and Figure 13 As shown, the overall cutout area of ​​the first cutout portion 213 is increased on the side away from the display area 100, which increases the stress and moisture release channels, reduces the risk of warping and peeling of the touch insulation layer 310 on the bending area 220 side, solves the problem of easy warping and peeling of the touch insulation layer 310, and ensures the structural stability of the display panel 10.

[0073] Continue to refer to Figure 12 and Figure 13 As shown, the distribution density of the first cutout portion 213 on the side of the second sub-region 212B closest to the display area 100 is less than the distribution density of the first cutout portion 213 on the side of the second sub-region 212B furthest from the display area 100; and / or, the cutout area of ​​the first cutout portion 213 on the side of the second sub-region 212B closest to the display area 100 is less than the cutout area of ​​the first cutout portion 213 on the side of the second sub-region 212B furthest from the display area 100.

[0074] Specifically, to satisfy the sum of the hollowed-out areas of the first hollowed-out portions 213 near the display area 100 side in the second sub-area 212B is less than the sum of the hollowed-out areas of the first hollowed-out portions 213 away from the display area 100 side in the second sub-area 212B, the setting density or size of the first hollowed-out portions 213 can be adjusted to achieve the above-mentioned purpose.

[0075] For example, as shown in FIG. 2B, the number of the first hollowed-out portions 213 near the display area 100 side in the second sub-area 212B is less than the number of the first hollowed-out portions 213 away from the display area 100 side in the second sub-area 212B, so that the sum of the hollowed-out areas of the first hollowed-out portions 213 near the display area 100 side is less than the sum of the hollowed-out areas of the first hollowed-out portions 213 away from the display area 100 side. Figure 12 For example, as shown in FIG. 2B, the size of the first hollowed-out portions 213 near the display area 100 side in the second sub-area 212B is less than the size of the first hollowed-out portions 213 away from the display area 100 side in the second sub-area 212B, so that the sum of the hollowed-out areas of the first hollowed-out portions 213 near the display area 100 side is less than the sum of the hollowed-out areas of the first hollowed-out portions 213 away from the display area 100 side.

[0076] Figure 13 For example, as shown in FIG. 2B, the size of the first hollowed-out portions 213 near the display area 100 side in the second sub-area 212B is less than the size of the first hollowed-out portions 213 away from the display area 100 side in the second sub-area 212B, so that the sum of the hollowed-out areas of the first hollowed-out portions 213 near the display area 100 side is less than the sum of the hollowed-out areas of the first hollowed-out portions 213 away from the display area 100 side. Further, as shown in FIG. 2B, the number of the first hollowed-out portions 213 near the display area 100 side in the second sub-area 212B is less than the number of the first hollowed-out portions 213 away from the display area 100 side in the second sub-area 212B, while the size of the first hollowed-out portions 213 near the display area 100 side in the second sub-area 212B is less than the size of the first hollowed-out portions 213 away from the display area 100 side in the second sub-area 212B. In summary, the first hollowed-out portions 213 have multiple settings, which can be applied to different display panels 10. Figure 13 Further, as shown in FIG. 2B, along the direction from the display area 100 to the non-display area 200, the sum of the hollowed-out areas of the first hollowed-out portions 213 in the second sub-area 212B gradually increases per unit area.

[0077] Figure 13 For example, as shown in FIG. 2B, the size of the first hollowed-out portions 213 near the display area 100 side in the second sub-area 212B is less than the size of the first hollowed-out portions 213 away from the display area 100 side in the second sub-area 212B, so that the sum of the hollowed-out areas of the first hollowed-out portions 213 near the display area 100 side is less than the sum of the hollowed-out areas of the first hollowed-out portions 213 away from the display area 100 side. Further, as shown in FIG. 2B, along the direction from the display area 100 to the non-display area 200, the sum of the hollowed-out areas of the first hollowed-out portions 213 in the second sub-area 212B gradually increases per unit area.

[0078] For example, as shown in FIG. 2B, the size of the first hollowed-out portions 213 near the display area 100 side in the second sub-area 212B is less than the size of the first hollowed-out portions 213 away from the display area 100 side in the second sub-area 212B, so that the sum of the hollowed-out areas of the first hollowed-out portions 213 near the display area 100 side is less than the sum of the hollowed-out areas of the first hollowed-out portions 213 away from the display area 100 side. Further, as shown in FIG. 2B, along the direction from the display area 100 to the non-display area 200, the sum of the hollowed-out areas of the first hollowed-out portions 213 in the second sub-area 212B gradually increases per unit area. Figure 11 Further, as shown in FIG. 2B, along the direction from the display area 100 to the non-display area 200, the sum of the hollowed-out areas of the first hollowed-out portions 213 in the second sub-area 212B gradually increases per unit area.

[0079] Figure 12 Further, as shown in FIG. 2B, along the direction from the display area 100 to the non-display area 200, the sum of the hollowed-out areas of the first hollowed-out portions 213 in the second sub-area 212B gradually increases per unit area. Figure 13 Figure 12 ​​​​There are area m1 and area m2 with equal area in the display panel 10, the area m1 is farther from the display area 100 than the area m2, and the sum of the hollowed-out area in the area m1 is greater than the sum of the hollowed-out area in the area m2. But in the area m1 or the area m2, the hollowed-out area close to the display area 100 side is equal to the hollowed-out area far from the display area 100 side, that is Figure 12 The change of the hollowed-out area in the display panel 10 is a gradient gradient. In summary, the setting of the first hollowed-out part 213 has diversity, which can be applied to different display panels 10.

[0080] Referring back to Figure 2 As shown in the display panel 10, the second sub-non-display area 212 includes a plurality of first hollowed-out parts 213 and a plurality of insulating parts 214A or 214B; the plurality of first hollowed-out parts 213 extend along the first direction X and are arranged along the second direction Y; the plurality of insulating parts 214A or 214B extend along the first direction X and are arranged along the second direction Y; along the second direction Y, the insulating part 214A or 214B is arranged between any two adjacent first hollowed-out parts 213; the first direction X is parallel to the direction of the display area 100 pointing to the non-display area 200, and the second direction Y intersects the first direction X.

[0081] Among them, the second sub-non-display area 212 includes a plurality of first hollowed-out parts 213 and a plurality of insulating parts 214A or 214B, specifically, the first sub-area 212A includes a plurality of first insulating parts 214A, and the second sub-area 212B includes a plurality of second insulating parts 214B. Referring to Figure 2 As shown in the display panel 10, the plurality of first hollowed-out parts 213 extend along the first direction X, and the first insulating part 214A or the second insulating part 214B is arranged between any two adjacent first hollowed-out parts 213, that is, the plurality of first hollowed-out parts 213 and the plurality of insulating parts 214A or 214B in the second sub-non-display area 212 are similar to the shape of the "anchoring" structure of the strip, through the setting mode, the stability of the first hollowed-out part 213 and the insulating part 214A or 214B is guaranteed, while realizing the release of stress or water vapor, and the flatness of the display panel 10 as a whole is guaranteed, and the stability of the overall structure of the display panel 10 is guaranteed.

[0082] Figure 14 is Figure 1 Another enlarged schematic view of the A area in the display panel 10, referring to Figure 14 As shown in the display panel 10, the second sub-non-display area 212 includes a grid-shaped touch insulating layer 310, and the first hollowed-out part 213 is a grid of the touch insulating layer 310.

[0083] Specifically, referring to Figure 14As shown, the touch insulation layer 310 of the second sub-non-display area 212 can be a network structure, for example, the first hollow part 213 can be a mesh part of the mesh-shaped touch insulation layer 310, and the non-hollow area, for example, the insulating area, can be a mesh part of the mesh-shaped touch insulation layer 310. By setting the second sub-non-display area 212 to include the mesh-shaped touch insulation layer 310, the setting mode of the touch insulation layer 310 can be enriched, and the release of water vapor and pressure and the stability of the display panel 10 structure can also be ensured.

[0084] Based on the same inventive concept, the embodiment of the present application also provides a display device, Figure 15 is a structural schematic diagram of a display device provided by the embodiment of the present application, as Figure 15 shown, the display device 1 includes the display panel described in any of the above embodiments, therefore, the display device 1 provided by the embodiment of the present application has the corresponding beneficial effects in the above embodiments, which will not be repeated here. For example, the display device 1 can be a mobile phone, a computer, a smart wearable device (for example, a smart watch) and a vehicle-mounted display device, etc. electronic equipment, specifically, the display device 1 can also be a liquid crystal display, an electrophoretic display, an organic light-emitting display, an inorganic light-emitting display, a field emission display, a surface conduction electron emission display, a plasma display, a cathode ray display, etc. The embodiment of the present application does not make specific limitations on this.

[0085] Note that the above is only the preferred embodiment of the present application and the technical principle applied. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and those skilled in the art can make various obvious changes, readjustments and substitutions without departing from the scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. A display panel, characterized by, The touch control structure comprises a touch control insulating layer; The display panel further comprises a display area and a non-display area, the non-display area comprises a first non-display area and a bending area, and the first non-display area is located between the bending area and the display area; The first non-display area comprises a first sub-non-display area and a second sub-non-display area, the touch control insulating layer comprises a plurality of touch control vias in the first sub-non-display area, and the touch control insulating layer comprises a first hollow part in the second sub-non-display area, and the first hollow part penetrates through the touch control insulating layer; The display panel further comprises a gate drive circuit and a gate drive signal line connected with the gate drive circuit; The gate drive signal line comprises a first gate drive line subpart arranged in the first non-display area and a second gate drive line subpart arranged in the bending area, the first gate drive line subpart and the second gate drive line subpart are arranged in different layers and are electrically connected through a first connection via; The second sub-non-display area comprises a first sub-area, the first connection via is arranged in the first sub-area, and in the first sub-area, the first hollow part comprises at least one first sub-hollow part.

2. The display panel of claim 1, wherein, Along the thickness direction of the display panel, the first sub-hollow part at least covers the first sub-area.

3. The display panel of claim 1, wherein, A plurality of first sub-hollow parts and a plurality of first insulating parts are arranged in the first sub-area; Along the thickness direction of the display panel, the first sub-hollow part at least partially overlaps with the first connection via, and the first insulating part at least partially overlaps with the gap between adjacent two first connection vias.

4. The display panel of claim 1, wherein, The second sub-non-display area comprises a second sub-area, and in the second sub-area, the first hollow part comprises a plurality of second sub-hollow parts; In the second sub-area, the touch control insulating layer further comprises a plurality of second insulating parts.

5. The display panel of claim 4, wherein, The display area comprises a plurality of data signal lines; The display panel further comprises a plurality of data transmission lines arranged in the second sub-area, the data transmission lines are arranged in different layers from the data signal lines and are electrically connected through second connection vias; Along the thickness direction of the display panel, the second sub-hollow part at least partially overlaps with the second connection via, and the second insulating part at least partially overlaps with the gap between adjacent two second connection vias.

6. The display panel of claim 1, wherein, The touch control structure further comprises touch control traces; The display panel further comprises a touch signal transmission structure arranged in the first sub-non-display area, the touch signal transmission structure is arranged in different layers from the touch control traces and is electrically connected through the touch control vias; In the first sub-non-display area, the touch control insulating layer comprises a second hollow part, and the second hollow part penetrates through the touch control insulating layer.

7. The display panel of claim 6, wherein, At least one second hollow part is multiplexed as the touch control via.

8. The display panel of claim 7, wherein, In any two touch control traces, the touch control trace with a longer extension length is a first touch control trace, and the touch control trace with a shorter extension length is a second touch control trace, the first touch control trace is electrically connected with the touch signal transmission structure through a first touch control via, and the second touch control trace is electrically connected with the touch signal transmission structure through a second touch control via; The first sub-non-display area is provided with a plurality of second hollow parts, the plurality of second hollow parts extend along a first direction and are arranged along a second direction, the first direction is parallel to the direction in which the display area points to the non-display area, and the second direction intersects the first direction; the plurality of second hollow parts include third sub-hollow parts and fourth sub-hollow parts; at least one third sub-hollow part is multiplexed as the first touch via, and at least one fourth sub-hollow part is multiplexed as the second touch via; The sheet resistance of the touch signal transmission structure is less than the sheet resistance of the touch wire, the first touch via is located on the side of the second touch via close to the display area, and along the first direction, the extension length of the third sub-hollow part is greater than the extension length of the fourth sub-hollow part.

9. The display panel of claim 7, wherein, In any two touch wires, the touch wire with a longer extension length is a first touch wire, and the touch wire with a shorter extension length is a second touch wire, the first touch wire is electrically connected to the touch signal transmission structure through a first touch via, and the second touch wire is electrically connected to the touch signal transmission structure through a second touch via; The first sub-non-display area is provided with a plurality of second hollow parts, the plurality of second hollow parts extend along a first direction and are arranged along a second direction, the first direction is parallel to the direction in which the display area points to the non-display area, and the second direction intersects the first direction; The sheet resistance of the touch signal transmission structure is less than the sheet resistance of the touch wire, the first touch via is located on the side of the second touch via close to the display area, and along the first direction, the extension length of any two second hollow parts is the same.

10. The display panel of claim 7, wherein, In any two touch wires, the touch wire with a longer extension length is a first touch wire, and the touch wire with a shorter extension length is a second touch wire, the first touch wire is electrically connected to the touch signal transmission structure through a first touch via, and the second touch wire is electrically connected to the touch signal transmission structure through a second touch via; The first sub-non-display area is provided with a plurality of second hollow parts, the plurality of second hollow parts extend along a first direction and are arranged along a second direction, the first direction is parallel to the direction in which the display area points to the non-display area, and the second direction intersects the first direction; the plurality of second hollow parts include third sub-hollow parts and fourth sub-hollow parts; at least one third sub-hollow part is multiplexed as the first touch via, and at least one fourth sub-hollow part is multiplexed as the second touch via; The opening size of the first touch via is greater than the opening size of the second touch via, and along the second direction, the extension width of the third sub-hollow part is greater than the extension width of the fourth sub-hollow part.

11. The display panel of claim 1, wherein, In a unit area, the sum of the hollow areas of the first hollow parts on the side of the second sub-non-display area close to the display area is less than the sum of the hollow areas of the first hollow parts on the side of the second sub-non-display area away from the display area.

12. The display panel of claim 11, wherein, The distribution density of the first hollow part near the display area side of the second sub-non-display area is less than the distribution density of the first hollow part away from the display area side of the second sub-non-display area. And / or, the hollow area of the first hollow part near the display area side of the second sub-non-display area is less than the hollow area of the first hollow part away from the display area side of the second sub-non-display area.

13. The display panel of claim 11, wherein, In the direction from the display area to the non-display area, the sum of the hollow area of the first hollow part in the second sub-non-display area per unit area gradually increases.

14. The display panel of claim 1, wherein, The second sub-non-display area comprises a plurality of first hollow parts and a plurality of insulating parts. The plurality of first hollow parts extend along a first direction and are arranged along a second direction; the plurality of insulating parts extend along the first direction and are arranged along the second direction; along the second direction, the insulating part is arranged between any two adjacent first hollow parts; the first direction is parallel to the direction from the display area to the non-display area, and the second direction intersects the first direction.

15. The display panel of claim 1, wherein, The second sub-non-display area comprises a grid-shaped touch insulating layer, and the first hollow part is a grid of the touch insulating layer.

16. A display device comprising: The display panel comprises any one of claims 1-15.

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