A display panel and display device

Abstract

The application discloses a display panel and a display device. The display panel comprises a display area and a non-display area, and the non-display area is located at least on one side of the display area. The non-display area comprises a bending area and a first via area, and the first via area is located on one side of the bending area close to the display area. The display panel further comprises a substrate and signal traces located on one side of the substrate, wherein the signal traces comprise signal transmission lines and signal connection lines arranged in different layers, the signal connection lines are located on one side of the signal transmission lines away from the substrate, and the signal transmission lines and the signal connection lines are electrically connected through connection vias in the first via area. The display panel further comprises a first shielding structure, which is located on one side of the signal connection lines away from the substrate, and the first shielding structure at least partially overlaps with the first via area. In this way, the first shielding structure is used to block the reaction ions from entering the first via area, so as to improve the corrosion phenomenon of the first via area.

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] With the development of display panels, the display requirements of display panels are higher and higher, and the wiring of display panels is more and more complex. With the increase of signal wiring density in the binding area of the display panel, the electric field strength increases, which accelerates the corrosion problem of the signal wiring at the position of the binding area hole under the action of the electric field, thereby easily causing the problem of display abnormality. SUMMARY

[0003] Embodiments of the present application provide a display panel and a display device. By arranging a first shielding structure on a side of a signal connection line away from a substrate, and arranging the first shielding structure to at least partially overlap with a first hole-changing area, the first shielding structure is used to block the entry of reaction ions into the first hole-changing area, thereby improving the corrosion phenomenon of the first hole-changing area.

[0004] In a first aspect, embodiments of the present application provide a display panel, which includes a display area and a non-display area, and the non-display area is located at least on one side of the display area.

[0005] The non-display area includes a bending area and a first hole-changing area, and the first hole-changing area is located on a side of the bending area close to the display area.

[0006] The display panel further includes a substrate and a signal wiring on a side of the substrate, and the signal wiring includes a signal transmission line and a signal connection line arranged in different layers, and the signal connection line is located on a side of the signal transmission line away from the substrate; and the signal transmission line and the signal connection line are electrically connected through a connection via in the first hole-changing area.

[0007] The display panel further includes a first shielding structure, and the first shielding structure is located on a side of the signal connection line away from the substrate, and the first shielding structure at least partially overlaps with the first hole-changing area.

[0008] In a second aspect, embodiments of the present application further provide a display panel, which includes a display area and a non-display area, and the non-display area is located at least on one side of the display area.

[0009] The non-display area includes a bending area and a first hole-changing area, and the first hole-changing area is located on a side of the bending area close to the display area.

[0010] The display panel further comprises a substrate and signal traces located on one side of the substrate, the signal traces comprising signal transmission lines and signal connection lines arranged in different layers, the signal connection lines being located on the side of the signal transmission lines away from the substrate; the signal transmission lines and the signal connection lines are electrically connected through connection vias in the first via conversion region;

[0011] The display panel further comprises a first shielding structure, the first shielding structure being located on the side of the signal connection lines away from the substrate, and the first shielding structure at least partially overlapping the first via conversion region;

[0012] The first shielding structure comprises a second shielding layer;

[0013] The display panel further comprises a pixel definition layer, the second shielding layer being located on the side of the pixel definition layer away from the substrate.

[0014] In a third aspect, an embodiment of the present application provides a display panel, the display panel comprising a display region and a non-display region, the non-display region being located on at least one side of the display region;

[0015] The non-display region comprises a bending region and a first via conversion region, the first via conversion region being located on the side of the bending region close to the display region;

[0016] The display panel further comprises a substrate and signal traces located on one side of the substrate, the signal traces comprising signal transmission lines and signal connection lines arranged in different layers, the signal connection lines being located on the side of the signal transmission lines away from the substrate; the signal transmission lines and the signal connection lines are electrically connected through connection vias in the first via conversion region;

[0017] The display panel further comprises a nitrogen-silicon inorganic layer located on the side of the signal connection lines away from the substrate, the nitrogen-silicon inorganic layer being arranged staggered with the first via conversion region along the thickness direction of the display panel.

[0018] In a fourth aspect, an embodiment of the present application further provides a display device comprising the display panel of any of the first aspect to the third aspect.

[0019] In the embodiment of the present application, the non-display area includes a bending area and a first via area located on the side of the bending area close to the display area. The display panel further includes a signal trace located on one side of the substrate, and the signal trace includes a signal transmission line and a signal connection line arranged in different layers, wherein the signal connection line is located on the side of the signal transmission line away from the substrate. The signal transmission line and the signal connection line are electrically connected through a connection via in the first via area, and then a first shielding structure is arranged on the side of the signal connection line away from the substrate, and the first shielding structure at least partially overlaps the first via area in the thickness direction of the display panel. In this way, the first shielding structure blocks the reaction ions generated by the chemical reaction of other film layers in the display panel from entering the first via area, avoiding the reaction of the reaction ions with the material of the connection via in the first via area to corrode the connection via, thereby improving the corrosion phenomenon of the first via area and improving the display effect of the display panel. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic diagram of a display panel provided by the embodiment of the present application;

[0021] Figure 2 is Figure 1 is a sectional schematic diagram along the direction of C-C in the embodiment;

[0022] Figure 3 is Figure 1 is another sectional schematic diagram along the direction of C-C in the embodiment;

[0023] Figure 4 is Figure 1 is a sectional schematic diagram along the direction of D-D in the embodiment;

[0024] Figure 5 is Figure 1 is another sectional schematic diagram along the direction of C-C;

[0025] Figure 6 is Figure 1 is another sectional schematic diagram along the direction of D-D;

[0026] Figure 7 is a partial schematic diagram of a non-display area provided by the embodiment of the present application;

[0027] Figure 8 is Figure 7 is a sectional schematic diagram along the direction of E-E in the embodiment;

[0028] Figure 9 is Figure 7 is a sectional schematic diagram along the direction of F-F in the embodiment;

[0029] Figure 10 is a partial schematic diagram of another non-display area provided by the embodiment of the present application;

[0030] Figure 11 is another partial view of the non-display area provided by an embodiment of the present application;

[0031] Figure 12 is a cross-sectional view along the direction of M-M' in the Figure 11

[0032] Figure 13 is a cross-sectional view along the direction of N-N' in the Figure 11

[0033] is another partial view of the non-display area provided by an embodiment of the present application; Figure 14

[0034] is another partial view of the non-display area provided by an embodiment of the present application; Figure 15

[0035] Figure 16 is a structural schematic view of another display panel provided by an embodiment of the present application;

[0036] Figure 17 is a cross-sectional view along the direction of F-F' in the Figure 7

[0037] Figure 18 is another cross-sectional view along the direction of C-C' in the Figure 1

[0038] Figure 19 is another cross-sectional view along the direction of D-D' in the Figure 1

[0039] Figure 20 is a cross-sectional view along the direction of G-G' in the Figure 1

[0040] Figure 21 is another cross-sectional view along the direction of G-G' in the Figure 1

[0041] Figure 22 is another cross-sectional view along the direction of G-G' in the Figure 1

[0042] Figure 23 is another cross-sectional view along the direction of G-G' in the Figure 1

[0043] Figure 24 is another cross-sectional view along the direction of E-E' in the Figure 7

[0044] Figure 25 is another cross-sectional view along the direction of E-E' in the Figure 7 ​​​​​​​​​​Another cross-sectional schematic view along the direction of F-F'.

[0045] Figure 26 is Figure 11 Another cross-sectional schematic view along the direction of M-M'.

[0046] Figure 27 is Figure 11 Another cross-sectional schematic view along the direction of N-N'.

[0047] Figure 28 is Figure 7 Another cross-sectional schematic view along the direction of F-F'.

[0048] Figure 29 A structural schematic diagram of a display device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0049] To make the objectives, technical solutions and advantages of the present application clearer, the following will combine the drawings in the embodiments of the present application, and describe the technical solutions of the present application completely through specific embodiments. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0050] Figure 1 A structural schematic diagram of a display panel provided by an embodiment of the present application, Figure 2 is Figure 1 A cross-sectional schematic view along the direction of C-C'. Referring to Figure 1 and Figure 2 The display panel includes a display area AA and a non-display area BB, and the non-display area BB is located at least on one side of the display area AA. The non-display area BB includes a bending area BB1 and a first aperture conversion area BB2, and the first aperture conversion area BB2 is located on a side of the bending area BB1 close to the display area AA. The display panel further includes a substrate 10 and a signal trace 20 located on one side of the substrate 10, and the signal trace 20 includes a signal transmission line 210 and a signal connection line 220 arranged in different layers, and the signal connection line 220 is located on a side of the signal transmission line 210 away from the substrate 10. The signal transmission line 210 and the signal connection line 220 are electrically connected through a connection via S1 in the first aperture conversion area BB2. The display panel further includes a first shielding structure 310, and the first shielding structure 310 is located on a side of the signal connection line 220 away from the substrate 10, and the first shielding structure 310 at least partially overlaps with the first aperture conversion area BB2.

[0051] For example, Figure 1As shown, the display panel includes a display area AA and a non-display area BB. The display area AA can include a plurality of light emitting elements (not shown in the figure) and pixel circuits (not shown in the figure). The pixel circuits are electrically connected to the light emitting elements, and provide various driving signals for the light emitting elements through the pixel circuits to drive the light emitting elements to emit light, thereby realizing the picture display of the display area AA. The non-display area BB surrounds at least part of the display area AA. For example, the non-display area BB can be a frame area of the display panel, for example, the non-display area BB can include an upper frame area, a lower frame area, a left frame area and a right frame area. The left frame area and / or the right frame area can be provided with a gate drive circuit (not shown in the figure), which can include a shift register including a plurality of cascaded shift register circuits. The output end of each shift register circuit is electrically connected to the light emitting elements of the same row through a scan signal line, thereby providing the light emitting elements with a scan signal through the gate drive circuit. The lower frame area can include a bending area BB1 and a first aperture exchange area BB2. The first aperture exchange area BB2 is located on the side of the bending area BB1 away from the display area AA, i.e. between the bending area BB1 and the display area AA. It can be understood that the first aperture exchange area BB2 can be the junction position of the bending area BB1 and the display area AA.

[0052] For example, as shown in FIG. 1, the display panel 100 includes a display area AA and a non-display area BB. The display area AA can include a plurality of light emitting elements (not shown in the figure) and pixel circuits (not shown in the figure). The pixel circuits are electrically connected to the light emitting elements, and provide various driving signals for the light emitting elements through the pixel circuits to drive the light emitting elements to emit light, thereby realizing the picture display of the display area AA. The non-display area BB surrounds at least part of the display area AA. For example, the non-display area BB can be a frame area of the display panel, for example, the non-display area BB can include an upper frame area, a lower frame area, a left frame area and a right frame area. The left frame area and / or the right frame area can be provided with a gate drive circuit (not shown in the figure), which can include a shift register including a plurality of cascaded shift register circuits. The output end of each shift register circuit is electrically connected to the light emitting elements of the same row through a scan signal line, thereby providing the light emitting elements with a scan signal through the gate drive circuit. The lower frame area can include a bending area BB1 and a first aperture exchange area BB2. The first aperture exchange area BB2 is located on the side of the bending area BB1 away from the display area AA, i.e. between the bending area BB1 and the display area AA. It can be understood that the first aperture exchange area BB2 can be the junction position of the bending area BB1 and the display area AA. Figure 2In the shown embodiment, the display panel further comprises a substrate 10 and signal lines 20 located on one side of the substrate 10. The substrate 10 can comprise a laminated structure of a first flexible base layer 011, a first buffer layer 012 and a second flexible base layer 013. The materials of the first flexible base layer 011 and the second flexible base layer 013 can comprise PI (Polyimide). PI has excellent flexibility, bending resistance and certain high temperature resistance, which provides a physical basis for subsequent processes and bending and curling of the final product. The signal lines 20 can be data signal lines connected to the pixel circuits in the display area AA, and can also be signal lines in the left and / or right frame areas, such as gate signal lines connected to the gate driving circuit, which are not limited in the present application and can be set as needed by those skilled in the art. One end of the data signal line is electrically connected to the pixel circuit in the display area AA, and the other end is electrically connected to the driving chip (not shown in the figure) located in the bending area BB1. Similarly, one end of the gate signal line is electrically connected to the gate driving circuit in the left and / or right frame area, and the other end is electrically connected to the driving chip located in the bending area BB1, so as to provide various driving signals through the driving chip. As can be seen from the above, the signal lines 20 are connected to the driving chip in the bending area BB1 from the display area AA or the left and right frame areas, and are bent to the non-light-emitting side of the display panel in the bending area BB1, and then the signal lines 20 are changed in the junction position of the bending area BB1 and the display area AA, i.e. the first via area BB2, so that the signal lines 20 comprise signal transmission lines 210 and signal connection lines 220 arranged in different layers, and the signal transmission lines 210 and the signal connection lines 220 are electrically connected through the connection via S1 in the first via area BB2. In this way, the bending stress when the bending area BB1 is bent is dispersed through the connection via S1.

[0053] In the prior art, in the FIAA architecture, the overall width of the bending area is reduced, and the density of the signal lines in the bending area is increased, the spacing between the signal lines is compressed, and the influence of the electric field is increased. In addition, when preparing the nitrogen-silicon inorganic layer above the signal lines, ammonia gas is introduced, and the reaction of ammonia gas and water vapor generates hydroxyl ions. At the same time, in the edge position of the display area close to the first via area, the iodine-based polarizing layer will precipitate iodine monomer, and the reaction of iodine monomer and hydroxyl ions will generate iodine ions. Under the action of the strengthened electric field, since the first via area is located closest to the boundary of the display area, the iodine ions will gather on the connection via of the first via area, thereby easily reacting with the connection via to corrode the connection via.

[0054] To this end, the embodiment of the present application sets the first shielding structure 310 on the side of the signal line 20 away from the substrate 10. Specifically, the signal line 20 includes a signal transmission line 210 and a signal connection line 220, wherein the signal transmission line 210 can be the part of the signal line 20 connected to the display area AA (or the part connected to the left and / or right frame area), and the signal connection line 220 can be the part of the signal line 20 connected to the bending area BB1. The signal transmission line 210 and the signal connection line 220 are electrically connected through the connection via S1 in the first via changing area BB2. Then, the first shielding structure 310 is set above the connection via S1, that is, the first shielding structure 310 is located on the side of the signal connection line 220 away from the substrate 10, and along the thickness direction of the display panel, the first shielding structure 310 at least partially overlaps with the first via changing area BB2. Thus, the physical blocking effect of the first shielding structure 310 is used to block the reaction ions from entering the connection via S1, so as to avoid the reaction between the reaction ions and the material of the first via changing area BB2 and the connection via S1, and to avoid the corrosion of the connection via S1, thereby improving the connection stability between the signal connection line 220 and the signal transmission line 210 and avoiding the display abnormality, improving the corrosion phenomenon of the first via changing area BB2, and improving the display effect of the display panel.

[0055] It should be noted that the above scheme is used to better illustrate the technical problem of the present application, and is exemplarily described by taking the reaction ions as iodine ions, but is not limited thereto. In other embodiments, the first shielding structure 310 can also block other reaction ions which are prone to react with the material of the connection via S1, and the person skilled in the art can set as needed.

[0056] It should also be noted that Figure 1 The above is used to represent the positional relationship between the first via changing area BB2 and the bending area BB1, and is exemplarily described by taking the first via changing area BB2 and the bending area BB1 in the same plane. It is easily thought by the person skilled in the art that at least part of the bending area BB1 is bent to the non-light-emitting side of the display panel in the actual product.

[0057] In summary, the embodiment of the present application sets the first shielding structure on the side of the signal connection line away from the substrate, and along the thickness direction of the display panel, the first shielding structure at least partially overlaps with the first via changing area, so as to block the reaction ions generated by the chemical reaction of other film layers in the display panel from entering the first via changing area, avoid the reaction between the reaction ions and the material of the connection via in the first via changing area, and avoid the corrosion of the connection via, thereby improving the corrosion phenomenon of the connection via in the first via changing area, and improving the display effect of the display panel.

[0058] Optionally, on the basis of the above embodiment, continuing to refer to Figure 2The first shielding structure 310 is electrically connected with the potential signal line 500. Specifically, the first shielding structure 310 can be a conductive structure. By electrically connecting the first shielding structure 310 with the potential signal line 500, the potential signal line 500 provides a fixed potential signal or a jump potential signal for the first shielding structure 310. In this way, on the basis of physically blocking the reaction ions by the first shielding structure 310, the potential signal is also applied to the first shielding structure 310 to further block the reaction ions from entering the connection via hole S1 by the attraction or repulsion of the charged first shielding structure 310 to the reaction ions, thereby further improving the corrosion phenomenon of the first via hole area BB2 and improving the display effect of the display panel.

[0059] On the basis of the above embodiment, the first shielding structure 310 is electrically connected with the fixed potential signal line 500a. Specifically, the signal transmitted in the fixed potential signal line 500a is a fixed potential signal. By electrically connecting the first shielding structure 310 with the fixed potential signal line 500a, the potential signal on the first shielding structure 310 is a fixed potential signal. In this way, the force of the first shielding structure 310 on the reaction ions is fixed as repulsive force or attractive force. For example, when the reaction ions are negatively charged ions, the fixed potential signal on the first shielding structure 310 can be set as a positive fixed potential signal to attract the reaction ions on the first shielding structure 310, thereby reducing the reaction ions entering the connection via hole S1 and improving the corrosion phenomenon of the first via hole area BB2. Or when the reaction ions are positively charged ions, the fixed potential signal on the first shielding structure 310 can be set as a negative fixed potential signal. Since the reaction ions usually enter from the side of the signal trace 20 away from the substrate 10, the repulsion of the first shielding structure 310 on the signal trace 20 to the reaction ions can reduce the reaction ions finally entering the connection via hole S1 and improve the corrosion phenomenon of the first via hole area BB2. Similarly, when the reaction ions are negatively charged ions, the fixed potential signal on the first shielding structure 310 can also be set as a positive potential signal. When the reaction ions are positively charged ions, the fixed potential signal on the first shielding structure 310 can also be set as a negative potential signal. In this way, by electrically connecting the first shielding structure 310 with the fixed potential signal line 500a, a continuous repulsive force or attractive force can be applied to the reaction ions, thereby further reducing the reaction ions entering the connection via hole S1 and improving the corrosion phenomenon of the first via hole area BB2.

[0060] Optionally, on the basis of the above embodiment, Figure 3 is Figure 1 is another cross-sectional view along the direction C-C’ of the above embodiment, referring to Figure 3The display panel further comprises an iodine-based polarizing layer 40 located on the side of the first shielding structure 310 away from the substrate 10. The display panel further comprises a power supply trace 50 located on the side of the substrate 10. The power supply trace 50 comprises a first power supply trace 510, and the first shielding structure 310 is electrically connected to the first power supply trace 510, and the first power supply trace 510 is configured to provide a negative fixed potential signal for the first shielding structure 310.

[0061] Specifically, as shown in the embodiment, Figure 3 the display panel further comprises an iodine-based polarizing layer 40, and the iodine-based polarizing layer 40 at least partially overlaps the display area AA in the thickness direction of the display panel, so as to improve the light extraction effect of the display area AA through the iodine-based polarizing layer 40. In addition, the iodine-based polarizing layer 40 is located on the side of the first shielding structure 310 away from the signal trace 20, that is, the first shielding structure 310 is located between the iodine-based polarizing layer 40 and the connection via S1. In this way, when iodine is precipitated from the iodine-based polarizing layer 40 under certain conditions, and ammonia gas is introduced during the preparation of the nitrogen-silicon-based inorganic layer, and the ammonia gas and water vapor react to generate hydroxyl ions under certain conditions, the iodine ions generated by the reaction of iodine and hydroxyl ions will be blocked by the first shielding structure 310, thereby reducing the iodine ions entering the connection via S1 and improving the corrosion phenomenon of the first via area BB2. In addition, the display panel further comprises a power supply trace 50 located on the side of the substrate 10, and the power supply trace 50 comprises a first power supply trace 510, and the first power supply trace 510 is configured to provide a negative fixed potential signal. As shown in Figure 3 the first power supply trace 510 can be arranged in the same layer as the signal connection line 220, and then the first shielding structure 310 is electrically connected to the first power supply trace 510 to provide a negative fixed potential signal for the first shielding structure 310 through the first power supply trace 510, and the iodine ion itself is negatively charged, and then the first shielding structure 310 has a repelling effect on the iodine ion, which can further reduce the iodine ion entering the connection via S1 and improve the corrosion phenomenon of the first via area BB2.

[0062] It should be noted that, Figure 3 the first power supply trace 510 is arranged in the same layer as the signal connection line 220, but this is not limited, and in other embodiments, the first power supply trace 510 can also be located in other film layers.

[0063] Optionally, in yet another embodiment, Figure 4 is Figure 1 a cross-sectional view along the direction D-D' in Figure 4The display panel also includes an iodine-based polarizing layer 40 located on the side of the first shielding structure 310 away from the substrate 10. The display panel also includes a power trace 50 located on one side of the substrate 10. The power trace 50 includes a second power trace 520. The first shielding structure 310 is electrically connected to the second power trace 520. The second power trace 520 is used to provide a positive fixed potential signal to the first shielding structure 310.

[0064] Specifically, such as Figure 4 As shown, the display panel also includes an iodine-based polarizing layer 40. Along the thickness direction of the display panel, the iodine-based polarizing layer 40 at least partially overlaps with the display area AA, thereby improving the light emission effect of the display area AA through the iodine-based polarizing layer 40. Furthermore, the iodine-based polarizing layer 40 is located on the side of the first shielding structure 310 away from the signal trace 20, that is, the first shielding structure 310 is located between the iodine-based polarizing layer 40 and the connecting via S1. Thus, when iodine is deposited in the iodine-based polarizing layer 40 under certain conditions, and ammonia is introduced during the preparation of the nitrogen-silicon inorganic layer, and ammonia and water vapor react under certain conditions to generate hydroxide ions, the iodine ions generated by the reaction of iodine with hydroxide ions will be blocked by the first shielding structure 310, thereby reducing the number of iodine ions entering the connecting via S1 and improving the corrosion phenomenon of the first via area BB2. In addition, the display panel also includes a power trace 50 located on one side of the substrate 10. The power trace 50 includes a second power trace 520, which is used to provide a positive fixed potential signal. For example, such as Figure 4 As shown, the second power supply line 520 can be set on the same layer as the signal connection line 220. Then, by setting the first shielding structure 310 and electrically connecting the second power supply line 520, the second power supply line 520 can provide a positive fixed potential signal to the first shielding structure 310. Since iodine ions are negatively charged, the first shielding structure 310 has an attractive effect on iodine ions, which can further reduce the iodine ions that finally enter the connection via S1 and improve the corrosion phenomenon in the first via area BB2.

[0065] It should be noted that, Figure 4 The illustrated embodiment is exemplified by setting the second power trace 520 and the signal connection line 220 on the same layer, but this is not a limitation. In other embodiments, the second power trace 520 may also be located on other film layers.

[0066] Optionally, in yet another embodiment, Figure 5 yes Figure 1 Another schematic diagram of a cross-section along the C-C' direction. See also... Figure 5 The first shielding structure 310 includes a first shielding layer 311. The display panel also includes a pixel definition layer 110, and the first shielding layer 311 is located between the film layer where the signal connection line 220 is located and the film layer where the pixel definition layer 110 is located.

[0067] As an example, as shown in the embodiment Figure 5 In the embodiment shown, the display panel further comprises a pixel definition layer 110, the pixel definition layer 110 comprises a pixel opening portion 111 and a pixel definition portion 112 at a portion of the display area AA. The pixel definition portion 112 is arranged around the pixel opening portion 111. In addition, the pixel definition layer 110 is located on the side of the signal connection line 220 away from the substrate 10, and at least one planar layer is arranged between the pixel definition layer 110 and the signal connection line 220. Then, the first shielding layer 311 is arranged between the film layer where the signal connection line 220 is located and the film layer where the pixel definition layer 110 is located, so that the distance between the first shielding layer 311 and the connection via hole S1 is closer in the thickness direction of the display panel, thereby further improving the physical blocking effect of the first shielding layer 311 on the reaction ions, that is, further improving the corrosion phenomenon of the first via hole area BB2.

[0068] Optionally, on the basis of the above-mentioned embodiments, continuing to refer to Figure 5 , the display panel further comprises a light emitting element 100, the light emitting element 100 comprises a first electrode 101. The opening in the pixel definition layer 110 exposes at least a portion of the first electrode 101. The first electrode 101 is located in the display area AA, and the film layer where the first electrode 101 is located is between the film layer where the signal connection line 220 is located and the film layer where the pixel definition layer 110 is located. The first shielding structure 310 is in the same layer as the first electrode 101 and is insulated.

[0069] Specifically, the light emitting element 100 is arranged in the pixel opening sub-portion 111 of the display area AA, and the light emitting element 100 includes a first electrode 101, a second electrode 102, and a common light emitting layer 103. The common light emitting layer 103 is located in the pixel opening sub-portion 111, the second electrode 102 can be a cathode of the light emitting element 100, the first electrode 101 can be an anode of the light emitting element 100, the common light emitting layer 103 is located between the first electrode 101 and the second electrode 102, and the first electrode 101 is electrically connected with the pixel circuit. The common light emitting layer 103 can include a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, and an electron injection layer, which are arranged in a stack. When no voltage is applied to the first electrode 101 and the second electrode 102, the light emitting element 100 does not emit light. When a voltage is applied to the first electrode 101 and the second electrode 102, the first electrode injects holes into the hole injection layer, and the second electrode injects electrons into the electron injection layer. The holes and the electrons recombine in the light emitting layer to form excitons, which radiate light. On this basis, since the film layer in which the first electrode 101 is located is located between the film layer in which the signal connection line 220 is located and the film layer in which the pixel definition layer 110 is located, the first shielding structure 310 can be arranged in the same layer as the first electrode 101 and insulated. In this way, the first shielding layer 311 can be arranged at a position close to the connection via hole S1 in the thickness direction of the display panel, thereby improving the physical blocking effect of the first shielding structure 310 on the reactive ions and improving the corrosion phenomenon of the first via hole area BB2. Moreover, since the first shielding structure 310 and the first electrode 101 are located in the same film layer, the first shielding structure 310 and the first electrode 101 can be manufactured in the same manufacturing process using the same mask, without the need to manufacture masks for the first shielding structure 310 and the first electrode 101 separately, thereby saving costs, reducing the number of processes, and improving production efficiency.

[0070] Optionally, based on the above-mentioned embodiments, Figure 6 Figure 1 Another schematic view of a cross section along the direction of D-D'. Referring to Figure 6 The display panel further includes a nitrogen-silicon inorganic layer 60 located on the side of the signal connection line 220 away from the substrate 10. In the thickness direction of the display panel, the nitrogen-silicon inorganic layer 60 is arranged away from the first via hole area BB2.

[0071] Specifically, the display panel further includes a nitrogen-silicon inorganic layer 60 located on the side of the signal connection line 220 away from the substrate 10. For example, Figure 6 ​In the illustrated embodiment, the nitrogen-silicon inorganic layer 60 is located on the surface of the pixel definition layer 110 away from the substrate 10, and the nitrogen-silicon inorganic layer 60 is used to avoid the light emitting element in the pixel definition layer 110 from being corroded by water and oxygen, thereby playing a role of protecting the light emitting element. It should be noted that the inorganic layer includes a nitrogen-silicon inorganic layer and an oxygen-silicon inorganic layer, wherein the dielectric constant of the nitrogen-silicon inorganic layer is greater than that of the oxygen-silicon inorganic layer, and the nitrogen-silicon inorganic layer with a larger dielectric constant is usually prepared on the pixel definition layer 110. On the one hand, the nitrogen-silicon inorganic layer has a more compact structure and better isolation performance than the oxygen-silicon inorganic layer, and can effectively prevent water and oxygen in the air. On the other hand, the nitrogen-silicon inorganic layer with a larger dielectric constant can achieve better results in subsequent preparation of other devices. However, ammonia gas is introduced in the process of preparing the nitrogen-silicon inorganic layer 60, and under certain conditions, ammonia gas reacts with water vapor to generate hydroxyl ions. At the same time, the iodine polarizing layer 40 located away from the substrate 10 on the side of the nitrogen-silicon inorganic layer 60 will precipitate iodine under certain conditions, and the iodine ions generated by the reaction of iodine and hydroxyl ions will corrode the connection via hole S1. Therefore, in the embodiment of the present application, the nitrogen-silicon inorganic layer 60 is arranged to avoid the first via hole area BB2, that is, the nitrogen-silicon inorganic layer 60 is arranged to be staggered with the first via hole area BB2 along the thickness direction of the display panel. Since the nitrogen-silicon inorganic layer 60 is not prepared in the first via hole area BB2, the ammonia gas introduced at the position of the first via hole area BB2 can be reduced, that is, the generated hydroxyl ions are reduced. In this way, although the iodine polarizing layer 40 will precipitate iodine under certain conditions, since the number of hydroxyl ions is relatively small, the number of iodine ions ultimately generated by the reaction is also relatively small, thereby reducing the number of iodine ions entering the connection via hole S1 from another angle, and further improving the corrosion phenomenon of the first via hole area BB2.

[0072] Optionally, based on the above embodiment, Figure 7 is a local schematic view of a non-display area provided by an embodiment of the present application, Figure 8 is Figure 7 is a sectional view along the E-E' direction in Figure 9 is Figure 7 is a sectional view along the F-F' direction in. See Figures 7-9The signal trace 20 includes a gate signal trace 201 and a data signal trace 202. The first via region BB2 includes a gate line via region BB21 and a data line via region BB22. The gate signal trace 201 includes a gate signal transmission line 201a and a gate signal connection line 201b disposed on different layers. The gate signal connection line 201b is located on the side of the gate signal transmission line 201a away from the substrate 10. The gate signal transmission line 201a and the gate signal connection line 201b are electrically connected in the gate line via region BB21 through a connection via S1. The data signal trace 202 includes a data signal transmission line 202a and a data signal connection line 202b disposed on different layers. The data signal connection line 202b is located on the side of the data signal transmission line 202a away from the substrate 10. The data signal transmission line 202a and the data signal connection line 202b are electrically connected in the data line via region BB22 through a connection via S1. The first shielding structure 310 includes a gate shielding structure portion 310a and a data shielding structure portion 310b. Along the thickness direction of the display panel, the gate shielding structure portion 310a at least partially overlaps with the gate line switching via region BB21, and the data shielding structure portion 310b at least partially overlaps with the data line switching via region BB22.

[0073] Specifically, such as Figure 7 As shown, the lower bezel area of ​​the display panel includes multiple signal traces 20 and multiple power traces 50. The signal traces 20 may include gate signal traces 201 and data signal traces 202. The power traces 50 may include a first power trace 510 and a second power trace 520. The first power trace 510 can transmit a negative fixed potential signal, and the second power trace 520 can transmit a positive fixed potential signal. Let the direction from the first via area BB2 to the bend area BB1 be the first direction X, and the second direction Y intersect the first direction X. Then, both the power traces 50 and the signal traces 20 extend along the first direction X and are arranged along the second direction Y. Since one end of the gate signal trace 201 is electrically connected to the gate drive circuit of the left bezel area and / or the right bezel area, the gate signal trace 201 is located at the edge of the lower bezel area along the second direction Y, thus facilitating electrical connection with the gate drive circuit. The first power supply trace 510 is arranged around at least a portion of the display area AA. Therefore, by placing the first power supply trace 510 at the edge of the lower bezel area along the second direction Y, the entry of the first power supply trace 510 is facilitated. One end of the data signal trace 202 is electrically connected to the pixel circuit in the display area AA, thereby allowing the data signal trace 202 to be concentrated at the center of the lower bezel area for entry.

[0074] Based on the above, see Figure 7 and Figure 8The first via region BB2 includes a gate line via region BB21 located at a side of the bending region BB1 close to the display region AA. The gate signal wire 201 includes a gate signal transmission line 201a and a gate signal connection line 201b arranged in different layers. The gate signal connection line 201b is located at a side of the gate signal transmission line 201a away from the substrate 10. The gate signal connection line 201b can be electrically connected with the driving chip located at the bending region BB1, and the gate signal transmission line 201a can be electrically connected with the gate driving circuit located at the left and / or right frame region. The gate signal transmission line 201a and the gate signal connection line 201b are electrically connected through the connection via S1 at the gate line via region BB21 to disperse the bending stress of the bending region BB1 when bending. The first shielding structure 310 includes a gate shielding structure part 310a. In the thickness direction of the display panel, the gate shielding structure part 310a at least partially overlaps with the gate line via region BB21, so that the gate shielding structure part 310a blocks the reactive ions from entering the connection via S1 of the gate line via region BB21, avoids the reactive ions from reacting with the material of the connection via S1 of the gate line via region BB21 to corrode the connection via S1, improves the corrosion phenomenon of the gate line via region BB21, and improves the display effect of the display panel.

[0075] On the basis of the above, referring to Figure 7 and Figure 9 The first via region BB2 further includes a data line via region BB22 located at a side of the bending region BB1 close to the display region AA. The data signal wire 202 includes a data signal transmission line 202a and a data signal connection line 202b arranged in different layers. The data signal connection line 202b is located at a side of the data signal transmission line 202a away from the substrate 10. The data signal connection line 202b can be electrically connected with the driving chip located at the bending region BB1, and the data signal transmission line 202a can be electrically connected with the pixel circuit located at the display region AA. The data signal transmission line 202a and the data signal connection line 202b are electrically connected through the connection via S1 at the data line via region BB22 to disperse the bending stress of the bending region BB1 when bending. The first shielding structure 310 includes a data shielding structure part 310b. In the thickness direction of the display panel, the data shielding structure part 310b at least partially overlaps with the data line via region BB22, so that the data shielding structure part 310b blocks the reactive ions from entering the connection via S1 of the data line via region BB22, avoids the reactive ions from reacting with the material of the connection via S1 of the data line via region BB22 to corrode the connection via S1, improves the corrosion phenomenon of the data line via region BB22, and improves the display effect of the display panel.

[0076] Optionally, on the basis of the above embodiment, referring toFigure 7 The gate shielding structure portion 310a and the data shielding structure portion 310b are connected to the same potential signal line.

[0077] For example, such as Figure 7 In the illustrated embodiment, both the gate shielding structure portion 310a and the data shielding structure portion 310b are electrically connected to the first power supply line 510. The first power supply line 510 provides negative fixed potential signals to the gate shielding structure portion 310a and the data shielding structure portion 310b respectively. Thus, the gate shielding structure portion 310a and the data shielding structure portion 310b also have a repulsive or attractive force on the reactive ions, thereby further reducing the reactive ions entering the connection via S1 and improving the corrosion phenomenon in the first via region BB2. It should be noted that... Figure 7 The example described herein is exemplified by the fact that both the gate shielding structure portion 310a and the data shielding structure portion 310b are electrically connected to the first power supply line 510, but this is not a limitation. In other embodiments, both the gate shielding structure portion 310a and the data shielding structure portion 310b may also be electrically connected to the second power supply line 520, so that the second power supply line 520 provides positive fixed potential signals to the gate shielding structure portion 310a and the data shielding structure portion 310b respectively.

[0078] Optionally, in yet another embodiment, Figure 10 This is a partial schematic diagram of another non-display area provided in an embodiment of this application. See also... Figure 10 The gate shielding structure portion 310a and the data shielding structure portion 310b are independently provided, and the gate shielding structure portion 310a and the data shielding structure portion 310b are connected to different potential signal lines.

[0079] For example, such as Figure 10 In the illustrated embodiment, the gate shielding structure portion 310a and the data shielding structure portion 310b are independently configured. The gate shielding structure portion 310a is electrically connected to the first power supply line 510 to provide a negative fixed potential signal to the gate shielding structure portion 310a via the first power supply line 510. The data shielding structure portion 310b is electrically connected to the second power supply line 520 to provide a positive fixed potential signal to the data shielding structure portion 310b via the second power supply line 520. It is understood that in other embodiments, the gate shielding structure portion 310a may also be electrically connected to the second power supply line 520, and the data shielding structure portion 310b may be electrically connected to the first power supply line 510. This application does not limit this, and those skilled in the art can configure it as needed.

[0080] Optional, Figure 11 This is a partial schematic diagram of another non-display area provided in an embodiment of this application.Figure 12 is Figure 11 is a schematic view of a cross section along the direction of M-M' in Figure 13 is Figure 11 is a schematic view of a cross section along the direction of N-N' in Figures 11-13 The gate signal wire 201 includes a first gate signal wire 2011 and a second gate signal wire 2012, and the signal levels transmitted by the first gate signal wire 2011 and the second gate signal wire 2012 are opposite. The gate line via region BB21 includes a first via sub-region BB21a and a second via sub-region BB21b. The first gate signal wire 2011 includes a first gate signal transmission line 2011a and a first gate signal connection line 2011b arranged in different layers, the first gate signal connection line 2011b is located on the side of the first gate signal transmission line 2011a away from the substrate 10, and the first gate signal transmission line 2011a and the first gate signal connection line 2011b are electrically connected through a connection via S1 in the first via sub-region BB21a. The second gate signal wire 2012 includes a second gate signal transmission line 2012a and a second gate signal connection line 2012b arranged in different layers, the second gate signal connection line 2012b is located on the side of the second gate signal transmission line 2012a away from the substrate 10, and the second gate signal transmission line 2012a and the second gate signal connection line 2012b are electrically connected through a connection via S1 in the second via sub-region BB21b. The gate shielding structure part 310a includes a first sub-shielding structure 310a1 and a second sub-shielding structure 310a2. In the thickness direction of the display panel, the first sub-shielding structure 310a1 at least partially overlaps with the first via sub-region BB21a, and the second sub-shielding structure 310a2 at least partially overlaps with the second via sub-region BB21b. The potential signal line connected by the first sub-shielding structure 310a1 is different from the potential signal line connected by the second sub-shielding structure 310a2.

[0081] Specifically, as Figure 11 and Figure 12As shown, the gate signal wire 201 includes a first gate signal wire 2011 and a second gate signal wire 2012, and the signals transmitted by the first gate signal wire 2011 and the second gate signal wire 2012 are opposite in level. For example, the first gate signal wire 2011 can transmit a fixed low-level signal, and the second gate signal wire 2012 can transmit a fixed high-level signal. The first gate signal wire 2011 includes a first gate signal transmission line 2011a and a first gate signal connection line 2011b arranged in different layers, and the first gate signal connection line 2011b is located on the side of the first gate signal transmission line 2011a away from the substrate 10. Among them, the first gate signal connection line 2011b can be electrically connected with the driving chip located in the bending area BB1, and the first gate signal transmission line 2011a can be electrically connected with the gate driving circuit located in the left and / or right frame area to provide a fixed high-level signal for the gate driving circuit. The gate line via hole area BB21 includes a first via hole sub-area BB21a. The first gate signal transmission line 2011a and the first gate signal connection line 2011b are electrically connected through the connection via hole S1 in the first via hole sub-area BB21a. Further, the first sub-shielding structure 310a1 at least partially overlaps the first via hole sub-area BB21a along the thickness direction of the display panel, so as to block the reactive ions from entering the connection via hole S1 of the first via hole sub-area BB21a through the first sub-shielding structure 310a1, improve the corrosion phenomenon of the first via hole sub-area BB21a, and improve the display effect of the display panel. In addition, the first sub-shielding structure 310a1 can be electrically connected with the first power supply wire 510 to provide a negative fixed potential signal for the first sub-shielding structure 310a1 through the first power supply wire 510, so that the first sub-shielding structure 310a1 also has repulsive force or attractive force to the reactive ions, further reducing the reactive ions entering the connection via hole S1, and improving the corrosion phenomenon of the first via hole sub-area BB21a.

[0082] Similarly, as Figure 11 and Figure 13As shown, the second gate signal wire 2012 includes a second gate signal transmission line 2012a and a second gate signal connection line 2012b which are arranged in different layers, and the second gate signal connection line 2012b is located on the side of the second gate signal transmission line 2012a away from the substrate 10. The second gate signal connection line 2012b can be electrically connected with the driving chip located in the bending area BB1, and the second gate signal transmission line 2012a can be electrically connected with the gate driving circuit located in the left and / or right frame area to provide a fixed low-level signal for the gate driving circuit. The gate line via area BB21 further includes a second via sub-area BB21b. The second gate signal transmission line 2012a and the second gate signal connection line 2012b are electrically connected through a connection via S1 in the second via sub-area BB21b. Further, the second sub-shielding structure 310a2 at least partially overlaps the second via sub-area BB21b along the thickness direction of the display panel, so as to block the reactive ions from entering the connection via S1 of the second via sub-area BB21b through the second sub-shielding structure 310a2, thereby improving the corrosion phenomenon of the second via sub-area BB21b and improving the display effect of the display panel. In addition, the second sub-shielding structure 310a2 can be electrically connected with the second power supply wire 520 to provide a positive fixed potential signal for the second sub-shielding structure 310a2 through the second power supply wire 520, so that the second sub-shielding structure 310a2 also has repulsive force or attractive force to the reactive ions, further reducing the reactive ions entering the connection via S1 and improving the corrosion phenomenon of the first via sub-area BB21a.

[0083] It can be understood that, since the levels of the signals transmitted by the first gate signal wire 2011 and the second gate signal wire 2012 are opposite, different fixed potential signals can be provided for the first sub-shielding structure 310a1 arranged on the first gate signal wire 2011 and the second sub-shielding structure 310a2 arranged on the second gate signal wire 2012, respectively. For example, as shown in the embodiment, Figure 11 In the embodiment shown, the first gate signal wire 2011 transmits a fixed low-level signal, and the first sub-shielding structure 310a1 is electrically connected with the first power supply wire 510 to provide a negative fixed potential signal for the first sub-shielding structure 310a1, thereby avoiding the influence of the first sub-shielding structure 310a1 on the signal transmitted by the first gate signal wire 2011. Similarly, the second gate signal wire 2012 transmits a fixed high-level signal, and the second sub-shielding structure 310a2 is electrically connected with the second power supply wire 520 to provide a positive fixed potential signal for the second sub-shielding structure 310a2, thereby avoiding the influence of the second sub-shielding structure 310a2 on the signal transmitted by the second gate signal wire 2012.

[0084] It can be understood that the embodiments of the present application do not limit the positions of the first via sub-area BB21a and the second via sub-area BB21b. Preferably, the first via sub-area BB21a and the second via sub-area BB21b are arranged staggeredly along the first direction X, and the first direction X is a direction in which the display area AA points to the bending area BB1.

[0085] Optionally, on the basis of the above-mentioned embodiments, continuing to refer to Figure 7 , the first via area BB2 includes a plurality of connection vias arranged along the second direction Y. The first shielding structure 310 extends along the second direction Y, and the second direction Y intersects with the direction in which the display area AA points to the bending area BB1.

[0086] Specifically, as shown in Figure 7 , the gate signal wire 201 and the data signal wire 202 extend along the first direction X and are arranged along the second direction Y, the first direction X is a direction in which the display area AA points to the bending area BB1, and the second direction Y intersects with the first direction X. Further, the gate line via area BB21 and the data line via area BB22 are arranged along the second direction Y in the first via area BB2, so that the plurality of connection vias in the first via area BB2 are arranged along the second direction Y. On this basis, by arranging the first shielding structure 310 to extend along the second direction Y, the first shielding structure 310 can overlap the plurality of connection vias along the thickness direction of the display panel, thereby ensuring that the first shielding structure 310 is simple in arrangement mode.

[0087] In yet another embodiment, Figure 14 is another partial view of a non-display area provided by the embodiments of the present application. Referring to Figure 14 , the first shielding structure 310 also at least partially overlaps the signal connection line 220. Specifically, as shown in the embodiment of Figure 14 , the signal wire 20 includes the gate signal wire 201 and the data signal wire 202, and the signal connection line 220 includes the gate signal connection line 201b and the data signal connection line 202b, both of which are electrically connected to the driving chip located in the bending area BB1. Further, along the thickness direction of the display panel, the first shielding structure 310 at least partially overlaps the gate signal connection line 201b and the data signal connection line 202b, so that the area close to the first via area BB2 in the bending area BB1 is also blocked by the first shielding structure 310, thereby avoiding that the reaction ions bypass the first shielding structure 310 at the junction area between the first via area BB2 and the bending area BB1, and further improving the blocking effect of the first shielding structure 310.

[0088] Optionally, Figure 15 is another partial view of a non-display area provided by the embodiments of the present application. Referring toFigure 15 The display panel also includes a second perforation area BB3. The second perforation area BB3 is located on the side of the bending area BB1 away from the first perforation area BB2. The display panel also includes a second shielding structure 320, which at least partially overlaps with the second perforation area BB3 along the thickness direction of the display panel.

[0089] Specifically, such as Figure 15 As shown, the second hole-changing area BB3 is located on the side of the bending area BB1 away from the first hole-changing area BB2, that is, the bending area BB1 is located between the second hole-changing area BB3 and the first hole-changing area BB2. Since a first shielding structure 310 is provided above the first hole-changing area BB2, a second shielding structure 320 is provided above the second hole-changing area BB3 to balance the bending stress of the bending area BB1 during bending. That is, along the thickness direction of the display panel, the second shielding structure 320 and the second hole-changing area BB3 at least partially overlap. It can be understood that since the second hole-changing area BB3 is located on the side of the bending area BB1 away from the first hole-changing area BB2, that is, the second hole-changing area BB3 is farther from the boundary of the display area AA, the iodine elemental precipitated from the iodine-based polarizing layer in the display area AA is less likely to reach the second hole-changing area BB3. Therefore, the corrosion phenomenon at the location of the second hole-changing area BB3 is less than that of the first hole-changing area BB2.

[0090] Optionally, based on the above embodiments, Figure 16 This is a schematic diagram of another display panel structure provided in an embodiment of this application. See also... Figure 16 The display area AA also includes data signal lines 200 and signal wiring 300. The data signal lines 200 include a first data signal line 200a and a second data signal line 200b. The display area AA includes a first display area AA1 and a second display area AA2. Along a second direction Y, the second display area AA2 is located on both sides of the first display area AA1. The second direction Y intersects the direction of the display area AA towards the bend area BB1. The first data signal line 200a is located in the second display area AA2, and the second data signal line 200b is located in the first display area AA1. The first data signal line 200a is electrically connected to the data signal transmission line 202a of the first via area BB2 via the signal wiring 300. The second data signal line 200b is also electrically connected to the data signal transmission line 202a of the first via area BB2. The signal wiring 300 includes interconnected first signal wiring 300a and second signal wiring 300b, whose extending directions intersect.

[0091] Specifically, such as Figure 16As shown, the display area AA includes a first display area AA1 and a second display area AA2, and the second display area AA2 is located on both sides of the first display area AA1 along the second direction Y, and the second display area AA2 is closer to the boundary of the display area AA than the first display area AA1. In addition, the display area AA includes a first data signal line 200a and a second data signal line 200b, and the first data signal line 200a is located at the second display area AA2, i.e. at the boundary of the display area AA. The first aperture replacement area BB2 includes a data signal wire 202, and the data signal wire 202 includes a data signal transmission line 202a and a data signal connection line 202b, the data signal connection line 202b is electrically connected with the driving chip of the bending area BB1, and the data signal transmission line 202a is electrically connected with the first data signal line 200a or the second data signal line 200b of the display area AA, and then transmits the data signal for the first data signal line 200a or the second data signal line 200b of the display area AA through the driving chip. On this basis, the first data signal line 200a is electrically connected with the data signal transmission line 202a of the first aperture replacement area BB2 through the first signal wiring 300a and the second signal wiring 300b intersecting in the extension direction, and the second data signal line 200b is directly electrically connected with the data signal transmission line 202a of the first aperture replacement area BB2, so as to concentrate the data signal line 200 in the central area of the display area AA, which is beneficial to reduce the width of the bending area BB1 along the second direction Y.

[0092] Optionally, on the basis of the above embodiment, continuing to refer to Figure 9The display panel further comprises a first metal layer M1, a third metal layer M3 and a fourth metal layer M4 which are arranged in a stack on one side of the substrate 10. The signal trace 20 comprises a data signal trace 202, and the data signal trace 202 comprises a data signal transmission line 202a and a data signal connection line 202b. The data signal transmission line 202a is located on the first metal layer M1, and the data signal connection line 202b is located on the fourth metal layer M4. The display panel further comprises a first bridging structure 400 which is located on the third metal layer M3. The connection via S1 comprises a first connection via S11 and a second connection via S12 which are arranged along the thickness direction of the display panel. The first connection via S11 and the second connection via S12 at least partially overlap. The first bridging structure 400 can thus communicate the first connection via S11 and the second connection via S12. The data signal connection line 202b is electrically connected to the first bridging structure 400 through the first connection via S11, and the first bridging structure 400 is electrically connected to the data signal transmission line 202a through the second connection via S12. In this way, the data signal transmission line 202a located on the first metal layer M1 is electrically connected to the data signal connection line 202b located on the fourth metal layer M4 through the first bridging structure 400, the first connection via S11 and the second connection via S12, and the connection mode of the data signal transmission line 202a and the data signal connection line 202b is ensured to be simple.

[0093] It can be understood that a second metal layer M2 can also be included between the first metal layer M1 and the third metal layer M3. Since the data signal transmission line 202a is electrically connected to the data signal line in the display area, the data signal line in the display area is usually located on the first metal layer M1 or the second metal layer M2. Therefore, the data signal transmission line 202a located in the first bridge area BB2 can be located on the first metal layer M1 or the second metal layer M2. In other embodiments, Figure 17 is Figure 7 is another schematic view of a cross section along the F-F' direction. Referring to Figure 7 and Figure 17The display panel includes a first metal layer M1, a second metal layer M2, a third metal layer M3 and a fourth metal layer M4 which are arranged in a stack on one side of the substrate 10. The signal trace 20 includes a data signal trace 202, and the data signal trace 202 includes a data signal transmission line 202a and a data signal connection line 202b. The data signal transmission line 202a is located on the second metal layer M2, and the data signal connection line 202b is located on the fourth metal layer M4. The display panel further includes a first bridging structure 400 which is located on the third metal layer M3. The connection via S1 includes a first connection via S11 and a third connection via S13, and along the thickness direction of the display panel, the first connection via S11 and the third connection via S13 at least partially overlap, so that the first bridging structure 400 can communicate the first connection via S11 and the third connection via S13. The data signal connection line 202b is electrically connected to the first bridging structure 400 through the first connection via S11, and the first bridging structure 400 is electrically connected to the data signal transmission line 202a through the third connection via S13. In this way, the electrical connection between the data signal transmission line 202a located on the second metal layer M2 and the data signal connection line 202b located on the fourth metal layer M4 is achieved through the first bridging structure 400, the first connection via S11 and the third connection via S13, and the connection mode of the data signal transmission line 202a and the data signal connection line 202b is ensured to be simple.

[0094] It should be noted that a second buffer layer 014 and a gate insulating layer 015 can also be included between the substrate 10 and the first metal layer M1. The second buffer layer 014 is located on the side of the gate insulating layer 015 close to the substrate 10, and the first metal layer M1 is arranged on the gate insulating layer 015. In addition, a plurality of interlayer insulating layers are also arranged between the fourth metal layer M4 and the first metal layer M1. For example, a first interlayer insulating layer 016 and a second interlayer insulating layer 017. The first interlayer insulating layer 016 is located on the side of the second interlayer insulating layer 017 close to the substrate 10. The first bridging structure 400 penetrates at least part of the interlayer insulating layers. For example, as shown in the embodiment, Figure 9 The first bridging structure 400 penetrates the second interlayer insulating layer 017 and part of the first interlayer insulating layer 016. Figure 17In the shown embodiment, the first bridging structure 400 penetrates part of the second interlayer insulating layer 017. In addition, the display panel further comprises a passivation layer 018 disposed on the part of the second interlayer insulating layer 017 and the part of the first bridging structure 400. That is, the first bridging structure 400 is connected to the first connection via S11 and the second connection via S12, or the first connection via S11 and the third connection via S13, which are covered by the interlayer insulating layer and the passivation layer 018, so as to avoid being eroded by the reaction ions. It can be understood that the substrate 10 and the fourth metal layer M4 are further provided with a dielectric layer 019, which plays a role of signal isolation, parasitic capacitance control and stress buffering. In addition, the fourth metal layer M4 is further provided with a planarization layer 020 away from the substrate 10. The planarization layer 020 is used to optimize the flatness of the film layer, thereby providing a basis for the preparation of subsequent devices.

[0095] Based on the above-mentioned inventive concept, the embodiments of the present application further provide a display panel, Figure 18 is Figure 1 Another schematic view of a cross section along the direction of C-C'. Referring to Figure 1 and Figure 18 The display panel comprises a display area AA and a non-display area BB, and the non-display area BB is located at least on one side of the display area AA. The display area AA can comprise a plurality of light emitting elements and pixel circuits. The pixel circuit is electrically connected to the light emitting element, and provides various driving signals for the light emitting element through the pixel circuit to drive the light emitting element to emit light, thereby realizing the picture display of the display area AA. The non-display area BB comprises a bending area BB1 and a first via area BB2, and the first via area BB2 is located on the side of the bending area BB1 close to the display area AA. For example, the lower frame area of the non-display area BB can comprise the bending area BB1 and the first via area BB2. The first via area BB2 is located on the side of the bending area BB1 away from the display area AA, that is, the first via area BB2 is located between the bending area BB1 and the display area AA. It can be understood that the first via area BB2 can be the junction position of the bending area BB1 and the display area AA. As shown in Figure 18As shown, the display panel further comprises a substrate 10 and signal lines 20 located on one side of the substrate 10. The signal lines 20 can be data signal lines connected to the pixel circuits, and can also be signal lines of the left and / or right frame regions, such as gate signal lines connected to the gate driving circuit, etc. The signal lines 20 comprise signal transmission lines 210 and signal connection lines 220 arranged in different layers, and the signal connection lines 220 are located on the side of the signal transmission lines 210 away from the substrate 10. For example, the signal transmission lines 210 can be electrically connected to the pixel circuits of the display area AA or the gate driving circuit of the left and right frame regions, and the signal connection lines 220 can be electrically connected to the driving chip of the bending area BB1. In addition, the signal transmission lines 210 and the signal connection lines 220 are electrically connected through the connection via S1 in the first via area BB2, and the connection via S1 is used to disperse the bending stress when the bending area BB1 bends.

[0096] In addition, the display panel further comprises a first shielding structure 310 located on the side of the signal connection lines 220 away from the substrate 10, and the first shielding structure 310 at least partially overlaps the first via area BB2. Thus, the first shielding structure 310 physically blocks the reaction ions from entering the connection via S1, avoids the reaction ions from reacting with the materials of the first via area BB2 and the connection via S1 to corrode the connection via S1, causes the connection stability of the signal connection lines 220 and the signal transmission lines 210 to be poor and display abnormalities to occur, improves the corrosion phenomenon of the first via area BB2, and improves the display effect of the display panel.

[0097] In addition, the first shielding structure 310 further comprises a second shielding layer 312, and the display panel further comprises a pixel definition layer 110 and an iodine-based polarizing layer 40. The second shielding layer 312 is located on the side of the pixel definition layer 110 away from the substrate 10, i.e., the second shielding layer 312 is located between the pixel definition layer 110 and the iodine-based polarizing layer 40. In this way, the second shielding layer 312 not only blocks the reaction ions from entering the connection via S1, but also blocks the reaction between the hydroxyl ions below the second shielding layer 312 and the iodine element separated from the iodine-based polarizing layer 40, thereby reducing the generation of iodine ions and further reducing the iodine ions entering the connection via S1, and improving the corrosion phenomenon of the first via area BB2.

[0098] On the basis of the above, continuing to refer to Figure 18 The display panel further comprises at least one touch metal layer 70. The touch metal layer 70 is located on the side of the pixel definition layer 110 away from the substrate 10. The second shielding layer 312 is in the same layer as and insulated from the at least one touch metal layer 70.

[0099] Specifically, since the touch metal layer 70 is located between the pixel definition layer 110 and the iodine-based polarizing layer 40, the second shielding layer 312 can be disposed in the same layer and insulated from the at least one touch metal layer 70. In this way, the second shielding layer 312 can block the reaction ions from entering the connection via S1, and also block the reaction between the hydroxyl ions below the second shielding layer 312 and the iodine element separated from the iodine-based polarizing layer 40, thereby reducing the generation of iodine ions, further reducing the iodine ions entering the connection via S1, and improving the corrosion phenomenon of the first via area BB2. Moreover, since the second shielding layer 312 and the at least one touch metal layer 70 are located in the same film layer, the second shielding layer 312 and the at least one touch metal layer 70 can be manufactured in the same manufacturing process using the same mask, without the need to manufacture masks for the second shielding layer 312 and the at least one touch metal layer 70 respectively, thereby saving costs, reducing the number of manufacturing processes, and improving production efficiency.

[0100] Optionally, based on the above embodiments, Figure 19 Figure 1 Another cross-sectional view along the direction of D-D'. Referring to Figure 18 and Figure 19 The display panel further includes a nitrogen-silicon-based inorganic layer 60 located on the side of the signal connection line 220 away from the substrate 10. The at least one touch metal layer 70 includes a first touch metal layer 710 and a second touch metal layer 720, and the nitrogen-silicon-based inorganic layer 60 includes a first inorganic layer 610 and a second inorganic layer 620. The first inorganic layer 610 is located on the side of the second inorganic layer 620 close to the substrate 10, the first touch metal layer 710 is located between the first inorganic layer 610 and the second inorganic layer 620, and the second touch metal layer 720 is located on the side of the nitrogen-silicon-based inorganic layer 60 away from the substrate 10. Along the thickness direction of the display panel, the first touch metal layer 710 covers the first inorganic layer 610, and the second touch metal layer 720 covers the nitrogen-silicon-based inorganic layer 60. The second shielding layer 312 is disposed in the same layer and insulated from the first touch metal layer 710, and / or the second shielding layer 312 is disposed in the same layer and insulated from the second touch metal layer 720.

[0101] ​Specifically, the nitrogen-silicon inorganic layer 60 is located on the surface of the pixel definition layer 110 away from the substrate 10, and the nitrogen-silicon inorganic layer 60 is used to avoid the light emitting element in the pixel definition layer 110 from being corroded by water and oxygen, thereby playing a role of protecting the light emitting element. It should be noted that the inorganic layer includes a nitrogen-silicon inorganic layer and an oxygen-silicon inorganic layer, and the dielectric constant of the nitrogen-silicon inorganic layer is greater than that of the oxygen-silicon inorganic layer. The nitrogen-silicon inorganic layer 60 is usually prepared on the side of the pixel definition layer 110 away from the substrate 10. However, ammonia gas is introduced in the process of preparing the nitrogen-silicon inorganic layer 60, and under certain conditions, the ammonia gas reacts with water vapor to generate hydroxyl ions. At the same time, the iodine-based polarizing layer 40 located on the side of the nitrogen-silicon inorganic layer 60 away from the substrate 10 can precipitate iodine under certain conditions, and the iodine ions generated by the reaction of the iodine with the hydroxyl ions can corrode the connection via S1. Therefore, the second shielding layer 312 is arranged between the pixel definition layer 110 and the iodine-based polarizing layer 40 to reduce the generation of iodine ions.

[0102] As shown in the embodiment shown in Figure 18 , along the thickness direction of the display panel, the first touch metal layer 710 covers the first inorganic layer 610, and the second shielding layer 312 is arranged in the same layer as the first touch metal layer 710. On the one hand, the first touch metal layer 710 and the second shielding layer 312 covering the first inorganic layer 610 can block the reaction between the hydroxyl ions generated by the reaction of ammonia gas and water vapor and the iodine single atoms precipitated from the iodine-based polarizing layer 40, thereby reducing the generation of iodine ions. On the other hand, the second shielding layer 312 at least partially overlapping with the first via region BB2 can also block the iodine ions from entering the connection via S1, thereby further improving the corrosion phenomenon of the first via region BB2.

[0103] In yet another embodiment, as shown in the embodiment shown in Figure 19 , along the thickness direction of the display panel, the second touch metal layer 720 covers the second inorganic layer 620, and the second shielding layer 312 is arranged in the same layer as the second touch metal layer 720. On the one hand, the second touch metal layer 720 and the second shielding layer 312 covering the second inorganic layer 620 can block the reaction between the hydroxyl ions generated by the reaction of ammonia gas and water vapor and the iodine single atoms precipitated from the iodine-based polarizing layer 40, thereby reducing the generation of iodine ions. On the other hand, the second shielding layer 312 at least partially overlapping with the first via region BB2 can also block the iodine ions from entering the connection via S1, thereby improving the corrosion phenomenon of the first via region BB2.

[0104] It should be noted that, Figure 18 and Figure 19The second shielding layer 312 is only illustratively arranged in the same layer as one touch metal layer, but the application is not limited thereto. In other embodiments, the second shielding layer 312 can also include two shielding layers and be arranged in the same layer as two touch metal layers. Those skilled in the art can arrange as needed.

[0105] Based on the above inventive concept, the embodiment of the present application also provides a display panel, Figure 20 Figure 1 a cross-sectional view along the G-G' direction. Referring to Figure 1 and Figure 20 The display panel includes a display area AA and a non-display area BB, and the non-display area BB is located at least on one side of the display area AA. The non-display area BB includes a bending area BB1 and a first via area BB2, and the first via area BB2 is located on a side of the bending area BB1 close to the display area AA1. The display panel further includes a substrate 10 and a signal trace 20 located on one side of the substrate 10, and the signal trace 20 includes a signal transmission line 210 and a signal connection line 220 arranged in different layers, and the signal connection line 220 is located on a side of the signal transmission line 210 away from the substrate 10. The signal transmission line 210 and the signal connection line 220 are electrically connected through a connection via S1 in the first via area BB2. The display panel further includes a nitrogen-silicon-based inorganic layer 60 located on a side of the signal connection line 220 away from the substrate 10, and along the thickness direction of the display panel, the nitrogen-silicon-based inorganic layer 60 is arranged offset from the first via area BB2.

[0106] Illustratively, as shown in Figure 1 The display panel includes a display area AA and a non-display area BB. The display area AA can include a plurality of light emitting elements and pixel circuits. The pixel circuits are electrically connected to the light emitting elements, and provide various driving signals to the light emitting elements through the pixel circuits to drive the light emitting elements to emit light, thereby realizing picture display of the display area AA. The non-display area BB surrounds at least part of the display area AA. Illustratively, the non-display area BB can be a frame area of the display panel, for example, the non-display area BB can include an upper frame area, a lower frame area, a left frame area, and a right frame area. The left frame area and / or the right frame area can be provided with a gate drive circuit. The lower frame area can include a bending area BB1 and a first via area BB2. The first via area BB2 is located on a side of the bending area BB1 away from the display area AA, i.e. between the bending area BB1 and the display area AA. It can be understood that the first via area BB2 can be the junction position of the bending area BB1 and the display area AA.

[0107] Illustratively, as shown in Figure 20 ​In the shown embodiment, the display panel further comprises a substrate 10 and signal traces 20 located on one side of the substrate 10. The substrate 10 can comprise a laminated structure of a first flexible base layer 011, a first buffer layer 012 and a second flexible base layer 013. The materials of the first flexible base layer 011 and the second flexible base layer 013 can comprise PI (Polyimide). PI has excellent flexibility, bending resistance and certain high temperature resistance, which provides a physical basis for subsequent processes and bending and curling of the final product. The signal traces 20 can be data signal traces connected to the pixel circuit, and can also be signal traces of the left and / or right frame regions, such as gate signal traces connected to the gate driving circuit. The present application does not limit this, and those skilled in the art can set it according to the needs. One end of the data signal traces is electrically connected to the pixel circuit in the display area AA, and the other end is electrically connected to the driving chip located in the bending area BB1. Similarly, one end of the gate signal traces is electrically connected to the gate driving circuit of the left and / or right frame regions, and the other end is electrically connected to the driving chip located in the bending area BB1, so as to provide various driving signals through the driving chip. As can be seen from the above, the signal traces 20 are connected to the driving chip in the bending area BB1 from the display area AA or the left and right frame regions, and are bent to the non-light-emitting side of the display panel in the bending area BB1, and then the signal traces 20 are changed in the first via area BB2 at the junction of the bending area BB1 and the display area AA, that is, the signal traces 20 comprise signal transmission lines 210 and signal connection lines 220 arranged in different layers, and the signal transmission lines 210 and the signal connection lines 220 are electrically connected through the connection via S1 in the first via area BB2. In this way, the connection via S1 is used to disperse the bending stress when the bending area BB1 is bent.

[0108] In addition, the display panel further comprises a nitrogen-silicon inorganic layer 60 on the side of the signal connection line 220 away from the substrate 10. Specifically, the nitrogen-silicon inorganic layer 60 is located on the surface of the pixel definition layer 110 away from the substrate 10, and the light emitting element in the pixel definition layer 110 is protected by the nitrogen-silicon inorganic layer 60 to avoid water and oxygen erosion. It should be noted that the inorganic layer includes a nitrogen-silicon inorganic layer and an oxygen-silicon inorganic layer, wherein the dielectric constant of the nitrogen-silicon inorganic layer is greater than that of the oxygen-silicon inorganic layer. Generally, the nitrogen-silicon inorganic layer with a larger dielectric constant is prepared on the pixel definition layer 110. On the one hand, the nitrogen-silicon inorganic layer has a more compact structure and better isolation performance than the oxygen-silicon inorganic layer, which can effectively prevent water and oxygen in the air. On the other hand, the nitrogen-silicon inorganic layer with a larger dielectric constant can achieve better results in subsequent preparation of other devices. However, ammonia gas is introduced during the preparation of the nitrogen-silicon inorganic layer 60, and under certain conditions, ammonia gas reacts with water vapor to generate hydroxyl ions. At the same time, the iodine-based polarizing layer 40 located on the side of the nitrogen-silicon inorganic layer 60 away from the substrate 10 will precipitate iodine under certain conditions, and the iodine will react with the hydroxyl ions to generate iodine ions.

[0109] Therefore, in the embodiment of the present application, the nitrogen-silicon inorganic layer 60 is arranged to avoid the first via hole area BB2 along the thickness direction of the display panel, that is, the nitrogen-silicon inorganic layer 60 is arranged to avoid the first via hole area BB2. Since the nitrogen-silicon inorganic layer 60 is not prepared in the first via hole area BB2, the ammonia gas introduced at the position of the first via hole area BB2 can be reduced, that is, the generated hydroxyl ions are reduced. In this way, although the iodine-based polarizing layer 40 will precipitate iodine under certain conditions, the number of generated iodine ions will be relatively small due to the small number of hydroxyl ions, thereby reducing the number of iodine ions entering the connection via hole S1 and improving the corrosion phenomenon of the first via hole area BB2.

[0110] In summary, in the embodiment of the present application, the nitrogen-silicon inorganic layer is arranged to avoid the first via hole area along the thickness direction of the display panel, so as to avoid the first via hole area during preparation of the nitrogen-silicon inorganic layer, thereby reducing the ammonia gas introduced at the position of the first via hole area, that is, reducing the generated hydroxyl ions. In this way, although the iodine-based polarizing layer will precipitate iodine under certain conditions, the number of generated iodine ions will be relatively small due to the small number of hydroxyl ions, thereby reducing the number of iodine ions entering the connection via hole and improving the corrosion phenomenon of the first via hole area.

[0111] Optionally, on the basis of the above-mentioned embodiment, referring to Figure 6The display panel further comprises a first shielding structure 310 located on the side of the signal connection line 220 away from the substrate 10, and the first shielding structure 310 at least partially overlaps the first via hole conversion area BB2. Thus, the physical blocking effect of the first shielding structure 310 is used to block the reaction ions from entering the connection via hole S1, so as to avoid the reaction ions from reacting with the materials of the first via hole conversion area BB2 and the connection via hole S1 to corrode the connection via hole S1, thereby avoiding the problem of poor connection stability between the signal connection line 220 and the signal transmission line 210 and display abnormalities, further improving the corrosion phenomenon of the first via hole conversion area BB2, and improving the display effect of the display panel.

[0112] Optionally, based on the above embodiments, Figure 21 is Figure 1 is another schematic view of a cross section along the direction of G-G'. Referring to Figure 21 The first shielding structure 310 is electrically connected to the potential signal line 500. Specifically, the first shielding structure 310 can be a conductive structure, and by electrically connecting the first shielding structure 310 to the potential signal line 500, the potential signal line 500 provides a fixed potential signal or a jump potential signal for the first shielding structure 310. In this way, on the basis of physically blocking the reaction ions by the first shielding structure 310, a potential signal is also applied to the first shielding structure 310 to further block the reaction ions from entering the connection via hole S1 through the attraction or repulsion of the charged first shielding structure 310 to the reaction ions, thereby further improving the corrosion phenomenon of the first via hole conversion area BB2 and improving the display effect of the display panel.

[0113] On the basis of the above-mentioned embodiments, the first shielding structure 310 is electrically connected with the fixed potential signal line 500a. Specifically, the signal transmitted in the fixed potential signal line 500a is a fixed potential signal. By electrically connecting the first shielding structure 310 with the fixed potential signal line 500a, the potential signal on the first shielding structure 310 is a fixed potential signal. In this way, the force of the first shielding structure 310 on the reaction ions is fixed as repulsive force or attractive force. For example, when the reaction ions are negatively charged ions, the fixed potential signal on the first shielding structure 310 can be set as a positive fixed potential signal to attract the reaction ions on the first shielding structure 310, thereby reducing the reaction ions entering the connection via hole S1 and improving the corrosion phenomenon of the first via hole region BB2. Or, when the reaction ions are positively charged ions, the fixed potential signal on the first shielding structure 310 can be set as a negative fixed potential signal. Since the reaction ions usually enter from the side of the signal line 20 away from the substrate 10, the repulsive effect of the first shielding structure 310 on the reaction ions located on the signal line 20 can reduce the reaction ions entering the connection via hole S1 and improve the corrosion phenomenon of the first via hole region BB2. Similarly, when the reaction ions are negatively charged ions, the fixed potential signal on the first shielding structure 310 can also be set as a positive potential signal. When the reaction ions are positively charged ions, the fixed potential signal on the first shielding structure 310 can also be set as a negative potential signal. In this way, by electrically connecting the first shielding structure 310 with the fixed potential signal line 500a, a continuous repulsive force or attractive force can be applied to the reaction ions, thereby further reducing the reaction ions entering the connection via hole S1 and improving the corrosion phenomenon of the first via hole region BB2.

[0114] Optionally, continuing to refer to Figure 21 , the display panel further includes an iodine-based polarizing layer 40 located on the side of the nitrogen-silicon-based inorganic layer 60 away from the substrate 10. The display panel further includes a power supply line 50 located on the side of the substrate 10. The power supply line includes a first power supply line 510, and the first shielding structure 310 is electrically connected with the first power supply line 510. The first power supply line 510 is used to provide a negative fixed potential signal for the first shielding structure 310.

[0115] For example, Figure 21In the illustrated embodiment, the display panel further comprises an iodine-based polarizing layer 40, which at least partially overlaps the display area AA in the thickness direction of the display panel, so as to improve the light-out effect of the display area AA through the iodine-based polarizing layer 40. In addition, the iodine-based polarizing layer 40 is located on the side of the first shielding structure 310 away from the signal trace 20, i.e., the first shielding structure 310 is located between the iodine-based polarizing layer 40 and the connection via S1. In this way, when iodine is precipitated from the iodine-based polarizing layer 40 under certain conditions, and ammonia gas is introduced during the preparation of the nitrogen-silicon-based inorganic layer, and the ammonia gas and water vapor react to form hydroxyl ions under certain conditions, the iodine ions generated by the reaction of the iodine and the hydroxyl ions will be blocked by the first shielding structure 310, thereby reducing the iodine ions entering the connection via S1 and improving the corrosion phenomenon of the first via area BB2. In addition, the display panel further comprises a power supply trace 50 located on one side of the substrate 10, and the power supply trace 50 comprises a first power supply trace 510 for providing a negative fixed potential signal. For example, as shown in Figure 21 The first power supply trace 510 can be arranged in the same layer as the signal connection line 220, and the first shielding structure 310 is electrically connected to the first power supply trace 510 to provide a negative fixed potential signal for the first shielding structure 310 through the first power supply trace 510. Since the iodine ion itself is negatively charged, the first shielding structure 310 has a repelling effect on the iodine ion, which can further reduce the iodine ion entering the connection via S1 and improve the corrosion phenomenon of the first via area BB2.

[0116] It should be noted that, Figure 21 The first power supply trace 510 can be arranged in the same layer as the signal connection line 220, and the first shielding structure 310 is electrically connected to the first power supply trace 510 to provide a negative fixed potential signal for the first shielding structure 310 through the first power supply trace 510. Since the iodine ion itself is negatively charged, the first shielding structure 310 has a repelling effect on the iodine ion, which can further reduce the iodine ion entering the connection via S1 and improve the corrosion phenomenon of the first via area BB2.

[0117] Optionally, in yet another embodiment, continuing to refer to Figure 6 The display panel further comprises an iodine-based polarizing layer 40 located on the side of the nitrogen-silicon-based inorganic layer 60 away from the substrate 10. The display panel further comprises a power supply trace 50 located on one side of the substrate 10. The power supply trace comprises a second power supply trace 520, and the first shielding structure 310 is electrically connected to the second power supply trace 520, and the second power supply trace 520 is used to provide a positive fixed potential signal for the first shielding structure 310.

[0118] Specifically, as shown in Figure 6As shown, the display panel further comprises an iodine-based polarizing layer 40, which at least partially overlaps the display area AA along the thickness direction of the display panel, so as to improve the light-out effect of the display area AA through the iodine-based polarizing layer 40. In addition, the iodine-based polarizing layer 40 is located on the side of the first shielding structure 310 away from the signal trace 20, i.e., the first shielding structure 310 is located between the iodine-based polarizing layer 40 and the connection via S1. In this way, when the iodine-based polarizing layer 40 releases iodine under certain conditions, and the nitrogen-silicon-based inorganic layer is prepared to introduce ammonia, and the ammonia and water vapor react to generate hydroxyl ions under certain conditions, the iodine ions generated by the reaction of iodine and hydroxyl ions will be blocked by the first shielding structure 310, thereby reducing the iodine ions entering the connection via S1 and improving the corrosion phenomenon of the first via area BB2. In addition, the display panel further comprises a power supply trace 50 located on one side of the substrate 10, and the power supply trace 50 comprises a second power supply trace 520 for providing a positive fixed potential signal. For example, as shown in the embodiment, Figure 6 As shown, the second power supply trace 520 can be arranged in the same layer as the signal connection line 220, and then the first shielding structure 310 is electrically connected to the second power supply trace 520 to provide a positive fixed potential signal for the first shielding structure 310 through the second power supply trace 520, and the iodine ion itself is negatively charged, and then the first shielding structure 310 has an attractive effect on the iodine ion, which can further reduce the iodine ion entering the connection via S1 and improve the corrosion phenomenon of the first via area BB2.

[0119] It should be noted that, Figure 6 The embodiment shown in the embodiment is exemplarily described by taking the second power supply trace 520 arranged in the same layer as the signal connection line 220 as an example, but this is not limited thereto, and in other embodiments, the second power supply trace 520 can also be located on other film layers.

[0120] Optionally, on the basis of the above-mentioned embodiments, Figure 22 is Figure 1 Another cross-sectional view along the G-G' direction in the embodiment. Referring to Figure 22 The first shielding structure 310 comprises a first shielding layer 311. The display panel further comprises a pixel definition layer 110, and the first shielding layer 311 is located between the film layer where the signal connection line 220 is located and the film layer where the pixel definition layer 110 is located.

[0121] For example, as shown in the embodiment, Figure 22In the illustrated embodiment, the display panel further comprises a pixel definition layer 110, the pixel definition layer 110 comprises a pixel opening portion 111 and a pixel definition portion 112 at a portion of the display area AA. The pixel definition portion 112 is arranged around the pixel opening portion 111. In addition, the pixel definition layer 110 is located on a side of the signal connection line 220 away from the substrate 10, and at least one planar layer is arranged between the pixel definition layer 110 and the signal connection line 220. Then, the first shielding layer 311 is arranged between the film layer where the signal connection line 220 is located and the film layer where the pixel definition layer 110 is located, so that the distance between the first shielding layer 311 and the connection via hole S1 is closer in the thickness direction of the display panel, thereby further improving the physical blocking effect of the first shielding layer 311 on the reaction ions, that is, further improving the corrosion phenomenon of the first via hole area BB2.

[0122] Optionally, on the basis of the above-mentioned embodiments, continuing to refer to Figure 22 , the display panel further comprises a light emitting element 100, the light emitting element 100 comprises a first electrode 101. The opening in the pixel definition layer 110 exposes at least a portion of the first electrode 101. The first electrode 101 is located in the display area AA, and the film layer where the first electrode 101 is located is between the film layer where the signal connection line 220 is located and the film layer where the pixel definition layer 110 is located. The first shielding structure 310 is in the same layer as the first electrode 101 and is insulated.

[0123] Specifically, the light emitting element 100 is arranged in the pixel opening sub-part 111 of the display area AA, and the light emitting element 100 includes a first electrode 101, a second electrode 102, and a common light emitting layer 103. The common light emitting layer 103 is located in the pixel opening sub-part 111, the second electrode 102 can be the cathode of the light emitting element 100, the first electrode 101 can be the anode of the light emitting element 100, the common light emitting layer 103 is located between the first electrode 101 and the second electrode 102, and the first electrode 101 is electrically connected with the pixel circuit. The common light emitting layer 103 can include a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, and an electron injection layer, which are arranged in a stack. When no voltage is applied to the first electrode 101 and the second electrode 102, the light emitting element 100 does not emit light. When a voltage is applied to the first electrode 101 and the second electrode 102, the first electrode injects holes into the hole injection layer, and the second electrode injects electrons into the electron injection layer. The holes and the electrons recombine in the light emitting layer to form excitons, which radiate light. On this basis, since the film layer in which the first electrode 101 is located is between the film layer in which the signal connection line 220 is located and the film layer in which the pixel definition layer 110 is located, the first shielding structure 310 can be arranged in the same layer as the first electrode 101 and insulated. In this way, the first shielding layer 311 can be arranged at a position close to the connection via hole S1 in the thickness direction of the display panel, thereby improving the physical blocking effect of the first shielding layer 311 on the reactive ions and improving the corrosion phenomenon of the first via hole area BB2. Moreover, since the first shielding structure 310 and the first electrode 101 are located in the same film layer, the first shielding structure 310 and the first electrode 101 can be manufactured in the same manufacturing process using the same mask, without the need to manufacture masks for the first shielding structure 310 and the first electrode 101 separately, thereby saving costs, reducing the number of manufacturing processes, and improving production efficiency.

[0124] Optionally, based on the above embodiment, Figure 23 is Figure 1 is another schematic cross-sectional view along the G-G' direction. Referring to Figure 23 , the first shielding structure 310 includes a second shielding layer 312. The display panel further includes a pixel definition layer 110, and the second shielding layer 312 is located on the side of the pixel definition layer 110 away from the substrate 10.

[0125] Specifically, the first shielding structure 310 further comprises a second shielding layer 312, and the display panel further comprises a pixel definition layer 110 and an iodine-based polarizing layer 40. The second shielding layer 312 is located on a side of the pixel definition layer 110 away from the substrate 10, that is, the second shielding layer 312 is located between the pixel definition layer 110 and the iodine-based polarizing layer 40. In this way, the second shielding layer 312 can not only block the reaction ions from entering the connection via hole S1, but also block the reaction between the hydrogen and oxygen ions below the second shielding layer 312 and the iodine element separated from the iodine-based polarizing layer 40, so as to reduce the generation of iodine ions and further reduce the iodine ions entering the connection via hole S1, thereby improving the corrosion phenomenon of the first via hole area BB2.

[0126] Optionally, continuing to refer to Figure 23 , the display panel further comprises at least one touch metal layer 70. The touch metal layer 70 is located on a side of the pixel definition layer 110 away from the substrate 10. The second shielding layer 312 is disposed in the same layer as the at least one touch metal layer 70.

[0127] Specifically, as shown in the embodiment of Figure 23 , the touch metal layer 70 can extend from the display area AA to the first via hole area BB2. Since the nitrogen-silicon-based inorganic layer 60 is not arranged above the first via hole area BB2, the part of the touch metal layer 70 located on the surface of the nitrogen-silicon-based inorganic layer 60 overlaps the display area AA in the thickness direction of the display panel, and the part of the touch metal layer 70 located on the surface of the pixel definition layer 110 at least partially overlaps the first via hole area BB2 in the thickness direction of the display panel. That is, the part of the touch metal layer 70 located on the surface of the pixel definition layer 110 can be used as the second shielding layer 312. In this way, the second shielding layer 312 can not only block the reaction ions from entering the connection via hole S1, but also block the reaction between the hydrogen and oxygen ions below the second shielding layer 312 and the iodine element separated from the iodine-based polarizing layer 40, so as to reduce the generation of iodine ions and further reduce the iodine ions entering the connection via hole S1, thereby improving the corrosion phenomenon of the first via hole area BB2. Moreover, since the second shielding layer 312 and the at least one touch metal layer 70 are located in the same film layer. During manufacturing, the second shielding layer 312 and the at least one touch metal layer 70 can be manufactured in the same manufacturing process by using the same mask, without the need to manufacture masks for the second shielding layer 312 and the at least one touch metal layer 70 respectively, thereby saving costs, reducing the number of manufacturing processes, and improving production efficiency.

[0128] Optionally, based on the above embodiments, Figure 24 is Figure 7 another cross-sectional view along the E-E' direction in Figure 25 . is Figure 7 another cross-sectional view along the F-F' direction in Figure 7 . Figure 24 and Figure 25The signal trace 20 includes a gate signal trace 201 and a data signal trace 202. The first via region BB2 includes a gate line via region BB21 and a data line via region BB22. The gate signal trace 201 includes a gate signal transmission line 201a and a gate signal connection line 201b disposed on different layers. The gate signal connection line 201b is located on the side of the gate signal transmission line 201a away from the substrate 10. The gate signal transmission line 201a and the gate signal connection line 201b are electrically connected in the gate line via region BB21 through a connection via S1. The data signal trace 202 includes a data signal transmission line 202a and a data signal connection line 202b disposed on different layers. The data signal connection line 202b is located on the side of the data signal transmission line 202a away from the substrate 10. The data signal transmission line 202a and the data signal connection line 202b are electrically connected in the data line via region BB22 through a connection via S1. The first shielding structure 310 includes a gate shielding structure portion 310a and a data shielding structure portion 310b. Along the thickness direction of the display panel, the gate shielding structure portion 310a at least partially overlaps with the gate line switching via region BB21, and the data shielding structure portion 310b at least partially overlaps with the data line switching via region BB22.

[0129] Specifically, such as Figure 7 As shown, the lower bezel area of ​​the display panel includes multiple signal traces 20 and multiple power traces 50. The signal traces 20 may include gate signal traces 201 and data signal traces 202. The power traces 50 may include a first power trace 510 and a second power trace 520. The first power trace 510 can transmit a negative fixed potential signal, and the second power trace 520 can transmit a positive fixed potential signal. Let the direction from the first via area BB2 to the bend area BB1 be the first direction X, and the second direction Y intersect the first direction X. Then, both the power traces 50 and the signal traces 20 extend along the first direction X and are arranged along the second direction Y. Since one end of the gate signal trace 201 is electrically connected to the gate driving circuit of the left bezel area and / or the right bezel area, the gate signal trace 201 is located at the edge of the lower bezel area along the second direction Y to facilitate electrical connection with the gate driving circuit. The first power supply trace 510 is arranged around at least a portion of the display area AA. Therefore, by placing the first power supply trace 510 at the edge of the lower bezel area along the second direction Y, the entry of the first power supply trace 510 is facilitated. One end of the data signal trace 202 is electrically connected to the pixel circuit in the display area AA, thereby allowing the data signal trace 202 to be concentrated at the center of the lower bezel area for entry.

[0130] Based on the above, see Figure 7 and Figure 24The first via region BB2 includes a gate line via region BB21 located at a side of the bending region BB1 close to the display region AA. The gate signal wire 201 includes a gate signal transmission line 201a and a gate signal connection line 201b arranged in different layers. The gate signal connection line 201b is located at a side of the gate signal transmission line 201a away from the substrate 10. The gate signal connection line 201b can be electrically connected with the driving chip located at the bending region BB1, and the gate signal transmission line 201a can be electrically connected with the gate driving circuit located at the left and / or right frame region. The gate signal transmission line 201a and the gate signal connection line 201b are electrically connected through the connection via S1 at the gate line via region BB21 to disperse the bending stress of the bending region BB1 when bending. The first shielding structure 310 includes a gate shielding structure part 310a. In the thickness direction of the display panel, the gate shielding structure part 310a at least partially overlaps with the gate line via region BB21, so that the gate shielding structure part 310a blocks the reactive ions from entering the connection via S1 of the gate line via region BB21, avoids the reactive ions from reacting with the material of the connection via S1 of the gate line via region BB21 to corrode the connection via S1, improves the corrosion phenomenon of the gate line via region BB21, and improves the display effect of the display panel.

[0131] On the basis of the above, referring to Figure 7 and Figure 25 The first via region BB2 further includes a data line via region BB22 located at a side of the bending region BB1 close to the display region AA. The data signal wire 202 includes a data signal transmission line 202a and a data signal connection line 202b arranged in different layers. The data signal connection line 202b is located at a side of the data signal transmission line 202a away from the substrate 10. The data signal connection line 202b can be electrically connected with the driving chip located at the bending region BB1, and the data signal transmission line 202a can be electrically connected with the pixel circuit located at the display region AA. The data signal transmission line 202a and the data signal connection line 202b are electrically connected through the connection via S1 at the data line via region BB22 to disperse the bending stress of the bending region BB1 when bending. The first shielding structure 310 includes a data shielding structure part 310b. In the thickness direction of the display panel, the data shielding structure part 310b at least partially overlaps with the data line via region BB22, so that the data shielding structure part 310b blocks the reactive ions from entering the connection via S1 of the data line via region BB22, avoids the reactive ions from reacting with the material of the connection via S1 of the data line via region BB22 to corrode the connection via S1, improves the corrosion phenomenon of the data line via region BB22, and improves the display effect of the display panel.

[0132] On the basis of the above embodiment, referring to Figure 7The gate shielding structure subpart 310a and the data shielding structure subpart 310b are connected to the same potential signal line.

[0133] For example, in the embodiment shown in Figure 7 , the gate shielding structure subpart 310a and the data shielding structure subpart 310b are both electrically connected to the first power supply line 510 to provide the gate shielding structure subpart 310a and the data shielding structure subpart 310b with negative fixed potential signals through the first power supply line 510. In this way, the gate shielding structure subpart 310a and the data shielding structure subpart 310b have repulsion or attraction to the reaction ions, thereby further reducing the reaction ions entering the connection via hole S1 and improving the etching phenomenon of the first via hole area BB2. It should be noted that Figure 7 , the gate shielding structure subpart 310a and the data shielding structure subpart 310b are both electrically connected to the first power supply line 510, but this is not limited thereto. In other embodiments, the gate shielding structure subpart 310a and the data shielding structure subpart 310b can also be both electrically connected to the second power supply line 520 to provide the gate shielding structure subpart 310a and the data shielding structure subpart 310b with positive fixed potential signals through the second power supply line 520.

[0134] In yet another embodiment, continuing to refer to Figure 10 , the gate shielding structure subpart 310a and the data shielding structure subpart 310b are independently provided, and the gate shielding structure subpart 310a and the data shielding structure subpart 310b are connected to different potential signal lines.

[0135] For example, in the embodiment shown in Figure 10 , the gate shielding structure subpart 310a and the data shielding structure subpart 310b are independently provided. The gate shielding structure subpart 310a is electrically connected to the first power supply line 510 to provide the gate shielding structure subpart 310a with a negative fixed potential signal through the first power supply line 510, and the data shielding structure subpart 310b is electrically connected to the second power supply line 520 to provide the data shielding structure subpart 310b with a positive fixed potential signal through the second power supply line 520.

[0136] It can be understood that in other embodiments, the gate shielding structure subpart 310a can also be electrically connected to the second power supply line 520, and the data shielding structure subpart 310b can also be electrically connected to the first power supply line 510. The present application does not limit this, and those skilled in the art can make settings as needed.

[0137] Optionally, on the basis of the above embodiments, Figure 26 is Figure 11 another cross-sectional view along the direction of M-M' in the embodiment shown inFigure 27 is Figure 11 is Figure 11 , Figure 26 and Figure 27 , the gate signal wire 201 includes a first gate signal wire 2011 and a second gate signal wire 2012, the signal levels transmitted by the first gate signal wire 2011 and the second gate signal wire 2012 are opposite. The gate line via region BB21 includes a first via sub-region BB21a and a second via sub-region BB21b. The first gate signal wire 2011 includes a first gate signal transmission line 2011a and a first gate signal connection line 2011b arranged in different layers, the first gate signal connection line 2011b is located on the side of the first gate signal transmission line 2011a away from the substrate 10, the first gate signal transmission line 2011a and the first gate signal connection line 2011b are electrically connected through a connection via S1 in the first via sub-region BB21a. The second gate signal wire 2012 includes a second gate signal transmission line 2012a and a second gate signal connection line 2012b arranged in different layers, the second gate signal connection line 2012b is located on the side of the second gate signal transmission line 2012a away from the substrate 10, the second gate signal transmission line 2012a and the second gate signal connection line 2012b are electrically connected through a connection via S1 in the second via sub-region BB21b. The gate shielding structure part 310a includes a first sub-shielding structure 310a1 and a second sub-shielding structure 310a2. In the thickness direction of the display panel, the first sub-shielding structure 310a1 at least partially overlaps the first via sub-region BB21a, and the second sub-shielding structure 310a2 at least partially overlaps the second via sub-region BB21b. The potential signal line connected by the first sub-shielding structure 310a1 is different from the potential signal line connected by the second sub-shielding structure 310a2.

[0138] Specifically, as Figure 11 and Figure 26As shown, the gate signal wire 201 includes a first gate signal wire 2011 and a second gate signal wire 2012, and the signals transmitted by the first gate signal wire 2011 and the second gate signal wire 2012 are opposite in level. For example, the first gate signal wire 2011 can transmit a fixed low-level signal, and the second gate signal wire 2012 can transmit a fixed high-level signal. The first gate signal wire 2011 includes a first gate signal transmission line 2011a and a first gate signal connection line 2011b arranged in different layers, and the first gate signal connection line 2011b is located on the side of the first gate signal transmission line 2011a away from the substrate 10. Among them, the first gate signal connection line 2011b can be electrically connected with the driving chip located in the bending area BB1, and the first gate signal transmission line 2011a can be electrically connected with the gate driving circuit located in the left and / or right frame area to provide a fixed high-level signal for the gate driving circuit. The gate line via hole area BB21 includes a first via hole sub-area BB21a. The first gate signal transmission line 2011a and the first gate signal connection line 2011b are electrically connected through the connection via hole S1 in the first via hole sub-area BB21a. Further, the first sub-shielding structure 310a1 at least partially overlaps the first via hole sub-area BB21a along the thickness direction of the display panel, so as to block the reactive ions from entering the connection via hole S1 of the first via hole sub-area BB21a through the first sub-shielding structure 310a1, improve the corrosion phenomenon of the first via hole sub-area BB21a, and improve the display effect of the display panel. In addition, the first sub-shielding structure 310a1 can be electrically connected with the first power supply wire 510 to provide a negative fixed potential signal for the first sub-shielding structure 310a1 through the first power supply wire 510, so that the first sub-shielding structure 310a1 also has repulsive force or attractive force to the reactive ions, further reducing the reactive ions entering the connection via hole S1, and improving the corrosion phenomenon of the first via hole sub-area BB21a.

[0139] Similarly, as Figure 11 and Figure 27As shown, the second gate signal wire 2012 includes a second gate signal transmission line 2012a and a second gate signal connection line 2012b which are arranged in different layers, and the second gate signal connection line 2012b is located on the side of the second gate signal transmission line 2012a away from the substrate 10. The second gate signal connection line 2012b can be electrically connected with the driving chip located in the bending area BB1, and the second gate signal transmission line 2012a can be electrically connected with the gate driving circuit located in the left and / or right frame area to provide a fixed low-level signal for the gate driving circuit. The gate line via area BB21 further includes a second via sub-area BB21b. The second gate signal transmission line 2012a and the second gate signal connection line 2012b are electrically connected through a connection via S1 in the second via sub-area BB21b. Further, the second sub-shielding structure 310a2 at least partially overlaps the second via sub-area BB21b along the thickness direction of the display panel, so as to block the reactive ions from entering the connection via S1 of the second via sub-area BB21b through the second sub-shielding structure 310a2, improve the corrosion phenomenon of the second via sub-area BB21b, and improve the display effect of the display panel. In addition, the second sub-shielding structure 310a2 can be electrically connected with the second power supply wire 520 to provide a positive fixed potential signal for the second sub-shielding structure 310a2 through the second power supply wire 520, so that the second sub-shielding structure 310a2 has repulsive force or attractive force to the reactive ions, further reducing the reactive ions entering the connection via S1, and improving the corrosion phenomenon of the first via sub-area BB21a.

[0140] It can be understood that, since the levels of the signals transmitted by the first gate signal wire 2011 and the second gate signal wire 2012 are opposite, different fixed potential signals can be provided for the first sub-shielding structure 310a1 arranged on the first gate signal wire 2011 and the second sub-shielding structure 310a2 arranged on the second gate signal wire 2012. For example, as shown in the embodiment, Figure 11 In the embodiment shown, the first gate signal wire 2011 transmits a fixed low-level signal, and the first sub-shielding structure 310a1 is electrically connected with the first power supply wire 510 to provide a negative fixed potential signal for the first sub-shielding structure 310a1, so as to avoid the influence of the first sub-shielding structure 310a1 on the signal transmitted by the first gate signal wire 2011. Similarly, the second gate signal wire 2012 transmits a fixed high-level signal, and the second sub-shielding structure 310a2 is electrically connected with the second power supply wire 520 to provide a positive fixed potential signal for the second sub-shielding structure 310a2, so as to avoid the influence of the second sub-shielding structure 310a2 on the signal transmitted by the second gate signal wire 2012.

[0141] Optionally, on the basis of the above embodiment, continuing to refer toFigure 7 The first via area BB2 includes a plurality of connection vias arranged along the second direction Y. The first shielding structure 310 extends along the second direction Y, which intersects the direction in which the display area AA points to the bending area BB1.

[0142] Specifically, as shown in Figure 7 , the gate signal wires 201 and the data signal wires 202 extend along the first direction X and are arranged along the second direction Y, the first direction X being the direction in which the display area AA points to the bending area BB1, and the second direction Y intersecting the first direction X. Further, the gate line via area BB21 and the data line via area BB22 are arranged along the second direction Y in the first via area BB2, so that the plurality of connection vias in the first via area BB2 are arranged along the second direction Y. On this basis, the first shielding structure 310 is arranged to extend along the second direction Y, so that the first shielding structure 310 can overlap the plurality of connection vias along the thickness direction of the display panel, and the arrangement of the first shielding structure 310 is simple.

[0143] Optionally, on the basis of the above embodiment, continuing to refer to Figure 14 , the first shielding structure 310 also at least partially overlaps the signal connection line 220. Specifically, as shown in the embodiment of Figure 14 , the signal wires 20 include the gate signal wires 201 and the data signal wires 202, and the signal connection line 220 includes the gate signal connection line 201b and the data signal connection line 202b, both of which are electrically connected to the driving chip located in the bending area BB1. Further, the first shielding structure 310 is arranged along the thickness direction of the display panel and at least partially overlaps the gate signal connection line 201b and the data signal connection line 202b, so that the area close to the first via area BB2 in the bending area BB1 is also blocked by the first shielding structure 310, avoiding that the reaction ions bypass the first shielding structure 310 at the junction area between the first via area BB2 and the bending area BB1, and further improving the blocking effect of the first shielding structure 310.

[0144] Optionally, continuing to refer to Figure 15 , the display panel further includes a second via area BB3. The second via area BB3 is located on the side of the bending area BB1 away from the first via area BB2. The display panel further includes a second shielding structure 320, which at least partially overlaps the second via area BB3 along the thickness direction of the display panel.

[0145] Specifically, as shown in Figure 15As shown, the second aperture conversion area BB3 is located on the side of the bending area BB1 away from the first aperture conversion area BB2, that is, the bending area BB1 is located between the second aperture conversion area BB3 and the first aperture conversion area BB2. In order to balance the bending stress of the bending area BB1 when bending, a second shielding structure 320 is arranged above the second aperture conversion area BB3, that is, the second shielding structure 320 at least partially overlaps the second aperture conversion area BB3 in the thickness direction of the display panel. It can be understood that since the second aperture conversion area BB3 is located on the side of the bending area BB1 away from the first aperture conversion area BB2, that is, the second aperture conversion area BB3 is far away from the boundary position of the display area AA, it is difficult for the iodine element separated from the iodine-based polarizer in the display area AA to reach the second aperture conversion area BB3. Therefore, the corrosion phenomenon at the position of the second aperture conversion area BB3 is lighter than that of the first aperture conversion area BB2.

[0146] Optionally, on the basis of the above embodiment, continuing to refer to Figure 16 The display area AA further includes a data signal line 200 and a signal wiring 300. The data signal line 200 includes a first data signal line 200a and a second data signal line 200b. The display area AA includes a first display area AA1 and a second display area AA2. In the second direction Y, the second display area AA2 is located on both sides of the first display area AA1. The second direction Y intersects the direction in which the display area AA points to the bending area BB1. The first data signal line 200a is located in the second display area AA2, and the second data signal line 200b is located in the first display area AA1. The first data signal line 200a is electrically connected to the data signal transmission line 202a of the first aperture conversion area BB2 through the signal wiring 300. The second data signal line 200b is electrically connected to the data signal transmission line 202a of the first aperture conversion area BB2. The signal wiring 300 includes a first signal wiring 300a and a second signal wiring 300b connected to each other. The extension directions of the first signal wiring 300a and the second signal wiring 300b intersect.

[0147] Specifically, as Figure 16As shown, the display area AA includes a first display area AA1 and a second display area AA2, and the second display area AA2 is located on both sides of the first display area AA1 along the second direction Y, and the second display area AA2 is closer to the boundary of the display area AA than the first display area AA1. In addition, the display area AA includes a first data signal line 200a and a second data signal line 200b, and the first data signal line 200a is located at the second display area AA2, i.e. at the boundary of the display area AA. The first aperture conversion area BB2 includes a data signal wire 202, and the data signal wire 202 includes a data signal transmission line 202a and a data signal connection line 202b, the data signal connection line 202b is electrically connected with the driving chip of the bending area BB1, and the data signal transmission line 202a is electrically connected with the first data signal line 200a or the second data signal line 200b of the display area AA, and then transmits the data signal for the first data signal line 200a or the second data signal line 200b of the display area AA through the driving chip. On this basis, the first data signal line 200a is electrically connected with the data signal transmission line 202a of the first aperture conversion area BB2 through the first signal wiring 300a and the second signal wiring 300b intersecting in the extension direction, and the second data signal line 200b is directly electrically connected with the data signal transmission line 202a of the first aperture conversion area BB2, so as to concentrate the data signal line 200 in the central area of the display area AA, which is beneficial to reduce the width of the bending area BB1 along the second direction.

[0148] Optionally, on the basis of the above embodiment, continuing to refer to Figure 25The display panel further comprises a first metal layer M1, a third metal layer M3 and a fourth metal layer M4 which are arranged in a stack on one side of the substrate 10. The signal trace 20 comprises a data signal trace 202, and the data signal trace 202 comprises a data signal transmission line 202a and a data signal connection line 202b. The data signal transmission line 202a is located on the first metal layer M1, and the data signal connection line 202b is located on the fourth metal layer M4. The display panel further comprises a first bridging structure 400 which is located on the third metal layer M3. The connection via S1 comprises a first connection via S11 and a second connection via S12 which are arranged along the thickness direction of the display panel. The first connection via S11 and the second connection via S12 at least partially overlap. The first bridging structure 400 can thus communicate the first connection via S11 and the second connection via S12. The data signal connection line 202b is electrically connected to the first bridging structure 400 through the first connection via S11, and the first bridging structure 400 is electrically connected to the data signal transmission line 202a through the second connection via S12. In this way, the data signal transmission line 202a located on the first metal layer M1 is electrically connected to the data signal connection line 202b located on the fourth metal layer M4 through the first bridging structure 400, the first connection via S11 and the second connection via S12, and the connection mode of the data signal transmission line 202a and the data signal connection line 202b is ensured to be simple.

[0149] It can be understood that a second metal layer M2 can also be included between the first metal layer M1 and the third metal layer M3. Since the data signal transmission line 202a is electrically connected to the data signal line of the display area, the data signal line of the display area is usually located on the first metal layer M1 or the second metal layer M2. Therefore, the data signal transmission line 202a located in the first bridge area BB2 can be located on the first metal layer M1 or the second metal layer M2. In other embodiments, Figure 28 is Figure 7 is another schematic view of a cross section along the F-F' direction. Referring to Figure 28The display panel includes a first metal layer M1, a second metal layer M2, a third metal layer M3 and a fourth metal layer M4 which are arranged in a stack on one side of the substrate 10. The signal trace 20 includes a data signal trace 202, and the data signal trace 202 includes a data signal transmission line 202a and a data signal connection line 202b. The data signal transmission line 202a is located on the second metal layer M2, and the data signal connection line 202b is located on the fourth metal layer M4. The display panel further includes a first bridging structure 400 which is located on the third metal layer M3. The connection via S1 includes a first connection via S11 and a third connection via S13, and along the thickness direction of the display panel, the first connection via S11 and the third connection via S13 at least partially overlap, so that the first bridging structure 400 can communicate the first connection via S11 and the third connection via S13. The data signal connection line 202b is electrically connected to the first bridging structure 400 through the first connection via S11, and the first bridging structure 400 is electrically connected to the data signal transmission line 202a through the third connection via S13. In this way, the electrical connection between the data signal transmission line 202a located on the second metal layer M2 and the data signal connection line 202b located on the fourth metal layer M4 is achieved through the first bridging structure 400, the first connection via S11 and the third connection via S13, and the connection mode of the data signal transmission line 202a and the data signal connection line 202b is ensured to be simple.

[0150] It should be noted that a second buffer layer 014 and a gate insulating layer 015 can also be included between the substrate 10 and the first metal layer M1. The second buffer layer 014 is located on the side of the gate insulating layer 015 close to the substrate 10, and the first metal layer M1 is arranged on the gate insulating layer 015. In addition, a plurality of interlayer insulating layers are also arranged between the fourth metal layer M4 and the first metal layer M1. For example, a first interlayer insulating layer 016 and a second interlayer insulating layer 017. The first interlayer insulating layer 016 is located on the side of the second interlayer insulating layer 017 close to the substrate 10. The first bridging structure 400 penetrates at least part of the interlayer insulating layers. For example, as shown in the embodiment, Figure 9 The first bridging structure 400 penetrates the second interlayer insulating layer 017 and part of the first interlayer insulating layer 016. Figure 17In the shown embodiment, the first bridging structure 400 penetrates part of the second interlayer insulating layer 017. In addition, the display panel further comprises a passivation layer 018 arranged on the part of the second interlayer insulating layer 017 and the part of the first bridging structure 400. That is, the first bridging structure 400 is connected to the first connection via S11 and the second connection via S12, or the first connection via S11 and the third connection via S13, which are covered by the interlayer insulating layer and the passivation layer 018, so as to avoid being eroded by the reaction ions. It can be understood that the substrate 10 and the fourth metal layer M4 are further provided with a dielectric layer 019, which plays a role of signal isolation, parasitic capacitance control and stress buffering. In addition, the fourth metal layer M4 is further provided with a planarization layer 020 away from the substrate 10. The planarization layer 020 is used to optimize the flatness of the film layer, thereby providing a basis for the preparation of subsequent devices.

[0151] Based on the above-mentioned inventive concept, the embodiment of the present application further provides a display device. Figure 29 A structural schematic diagram of a display device provided by the embodiment of the present application is shown in FIG. 18. As shown in FIG. 18, the display device comprises the display panel 01 according to any of the above-mentioned embodiments. Therefore, the display device provided by the embodiment of the present application has the corresponding beneficial effects of the display panel 01 provided by the embodiment of the present application, which will not be described here. For example, the display device can be a mobile phone, a computer, a smart wearable device (for example, a smart watch) and a vehicle-mounted display device, etc. Figure 29

[0152] It should be noted that the above-mentioned is only the preferred embodiment of the present application and the applied technical principle. 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, re-adjustments and substitutions without departing from the protection scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the 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 display panel comprises a display area and a non-display area, and the non-display area is located at least on one side of the display area; The non-display area comprises a bending area and a first aperture conversion area, and the first aperture conversion area is located on one side of the bending area close to the display area; The display panel further comprises a substrate and a signal trace located on one side of the substrate, the signal trace comprises a signal transmission line and a signal connection line arranged in different layers, and the signal connection line is located on one side of the signal transmission line away from the substrate; the signal transmission line and the signal connection line are electrically connected through a connecting via in the first aperture conversion area; The display panel further comprises a first shielding structure, the first shielding structure is located on one side of the signal connection line away from the substrate, and the first shielding structure at least partially overlaps with the first aperture conversion area, and the first shielding structure is used to block reactive ions from entering the first aperture conversion area; The signal trace comprises a gate signal trace and a data signal trace; The first aperture conversion area comprises a gate line aperture conversion area and a data line aperture conversion area; The gate signal trace comprises a gate signal transmission line and a gate signal connection line arranged in different layers, the gate signal connection line is located on one side of the gate signal transmission line away from the substrate, and the gate signal transmission line and the gate signal connection line are electrically connected through a connecting via in the gate line aperture conversion area; The data signal trace comprises a data signal transmission line and a data signal connection line arranged in different layers, the data signal connection line is located on one side of the data signal transmission line away from the substrate, and the data signal transmission line and the data signal connection line are electrically connected through a connecting via in the data line aperture conversion area; The first shielding structure comprises a gate shielding structure part and a data shielding structure part; In the thickness direction of the display panel, the gate shielding structure part at least partially overlaps with the gate line aperture conversion area, and the data shielding structure part at least partially overlaps with the data line aperture conversion area.

2. The display panel of claim 1, wherein The first shielding structure is electrically connected with a potential signal line.

3. The display panel of claim 2, wherein The first shielding structure is electrically connected with a fixed potential signal line.

4. The display panel of claim 3, wherein, The display panel further comprises an iodine-based polarizing layer located on one side of the first shielding structure away from the substrate; The display panel further comprises a power supply trace located on one side of the substrate; The power supply trace comprises a first power supply trace, the first shielding structure is electrically connected with the first power supply trace, and the first power supply trace is used to provide a negative fixed potential signal for the first shielding structure.

5. The display panel of claim 3, wherein, The display panel further comprises an iodine-based polarizing layer located on one side of the first shielding structure away from the substrate; The display panel further comprises a power supply trace located on one side of the substrate; The power supply trace comprises a second power supply trace, the first shielding structure is electrically connected with the second power supply trace, and the second power supply trace is used to provide a positive fixed potential signal for the first shielding structure.

6. The display panel of claim 1, wherein, The first shielding structure comprises a first shielding layer; The display panel further comprises a pixel definition layer, and the first shielding layer is located between a film layer where the signal connection line is located and a film layer where the pixel definition layer is located.

7. The display panel of claim 6, wherein, The display panel further comprises a light emitting element, the light emitting element comprising a first electrode; and the opening in the pixel definition layer exposes at least part of the first electrode; The first electrode is located in the display area, and a film layer where the first electrode is located is located between a film layer where the signal connection line is located and a film layer where the pixel definition layer is located; The first shielding structure is in the same layer as the first electrode and is insulated.

8. The display panel of claim 1, wherein, The display panel further comprises a nitrogen-silicon inorganic layer located on a side of the signal connection line away from the substrate, and along a thickness direction of the display panel, the nitrogen-silicon inorganic layer is staggered with the first via area.

9. The display panel of claim 1, wherein, The gate shielding structure part and the data shielding structure part are connected to the same potential signal line.

10. The display panel of claim 1, wherein, The gate shielding structure part and the data shielding structure part are independently arranged, and the gate shielding structure part and the data shielding structure part are connected to different potential signal lines.

11. The display panel of claim 10, wherein, The gate signal trace comprises a first gate signal trace and a second gate signal trace, and the first gate signal trace and the second gate signal trace transmit signals with opposite levels; The gate line via area comprises a first via sub-area and a second via sub-area; The first gate signal trace comprises a first gate signal transmission line and a first gate signal connection line arranged in different layers, the first gate signal connection line is located on a side of the first gate signal transmission line away from the substrate, and the first gate signal transmission line and the first gate signal connection line are electrically connected through a connection via in the first via sub-area; The second gate signal trace comprises a second gate signal transmission line and a second gate signal connection line arranged in different layers, the second gate signal connection line is located on a side of the second gate signal transmission line away from the substrate, and the second gate signal transmission line and the second gate signal connection line are electrically connected through a connection via in the second via sub-area; The gate shielding structure part comprises a first sub-shielding structure and a second sub-shielding structure; Along the thickness direction of the display panel, the first sub-shielding structure at least partially overlaps with the first via sub-area, and the second sub-shielding structure at least partially overlaps with the second via sub-area; The potential signal line connected to the first sub-shielding structure is different from the potential signal line connected to the second sub-shielding structure.

12. The display panel of claim 1, wherein, The first via area comprises a plurality of connection vias arranged along a second direction; The first shielding structure extends along the second direction, and the second direction intersects with a direction in which the display area points to the bending area.

13. The display panel of claim 1, wherein the first shielding structure at least partially overlaps the signal connection line in a thickness direction of the display panel.

14. The display panel of claim 1, wherein the display panel further comprises a second via conversion region; the second via conversion region is located on a side of the bending region away from the first via conversion region; the display panel further comprises a second shielding structure; and the second shielding structure at least partially overlaps the second via conversion region in a thickness direction of the display panel.

15. The display panel of claim 1, wherein the display region further comprises a data signal line and a signal routing line; the data signal line comprises a first data signal line and a second data signal line, and the display region comprises a first display region and a second display region, the second display region being located on both sides of the first display region in a second direction intersecting a direction in which the display region points to the bending region; the first data signal line is located in the second display region, and the second data signal line is located in the first display region; the first data signal line is electrically connected to the data signal transmission line of the first via conversion region through the signal routing line; the second data signal line is electrically connected to the data signal transmission line of the first via conversion region; and the signal routing line comprises a first signal routing line and a second signal routing line connected to each other, and the first signal routing line and the second signal routing line intersect in an extension direction.

16. The display panel of claim 1, wherein the display panel further comprises a first metal layer, a third metal layer, and a fourth metal layer located on a side of the substrate and stacked; the signal trace comprises a data signal trace, and the data signal trace comprises a data signal transmission line and a data signal connection line; the data signal transmission line is located in the first metal layer, and the data signal connection line is located in the fourth metal layer; the display panel further comprises a first bridging structure located in the third metal layer; the connection via comprises a first connection via and a second connection via, and the first connection via and the second connection via at least partially overlap in a thickness direction of the display panel; the data signal connection line is electrically connected to the first bridging structure through the first connection via, and the first bridging structure is electrically connected to the data signal transmission line through the second connection via.

17. The display panel of claim 1, wherein the display panel further comprises a second metal layer, a third metal layer, and a fourth metal layer located on a side of the substrate and stacked; the signal trace comprises a data signal trace, and the data signal trace comprises a data signal transmission line and a data signal connection line; the data signal transmission line is located in the second metal layer, and the data signal connection line is located in the fourth metal layer; the display panel further comprises a first bridging structure located in the third metal layer. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The connection via includes a first connection via and a third connection via, and the first connection via and the third connection via at least partially overlap in a thickness direction of the display panel; The data signal connection line is electrically connected with the first bridging structure through the first connection via, and the first bridging structure is electrically connected with the data signal transmission line through the third connection via.

18. A display panel, characterized by The display panel includes a display area and a non-display area, and the non-display area is located at least on one side of the display area; The non-display area includes a bending area and a first via area, and the first via area is located on a side of the bending area close to the display area; The display panel further includes a substrate and signal traces located on one side of the substrate, the signal traces include signal transmission lines and signal connection lines arranged in different layers, and the signal connection lines are located on a side of the signal transmission lines away from the substrate; the signal transmission lines and the signal connection lines are electrically connected through connection vias in the first via area; The display panel further includes a nitrogen-silicon inorganic layer located on a side of the signal connection lines away from the substrate, and the nitrogen-silicon inorganic layer is arranged staggered with the first via area in a thickness direction of the display panel; The display panel further includes a first shielding structure for blocking reactive ions from entering the first via area; The signal traces include gate signal traces and data signal traces; The first via area includes a gate line via area and a data line via area; The gate signal traces include gate signal transmission lines and gate signal connection lines arranged in different layers, and the gate signal connection lines are located on a side of the gate signal transmission lines away from the substrate; the gate signal transmission lines and the gate signal connection lines are electrically connected through connection vias in the gate line via area; The data signal traces include data signal transmission lines and data signal connection lines arranged in different layers, and the data signal connection lines are located on a side of the data signal transmission lines away from the substrate; the data signal transmission lines and the data signal connection lines are electrically connected through connection vias in the data line via area; The first shielding structure includes a gate shielding structure part and a data shielding structure part; In the thickness direction of the display panel, the gate shielding structure part at least partially overlaps with the gate line via area, and the data shielding structure part at least partially overlaps with the data line via area.

19. The display panel of claim 18, wherein The first shielding structure is located on a side of the signal connection lines away from the substrate, and the first shielding structure at least partially overlaps with the first via area.

20. The display panel of claim 19, wherein The first shielding structure is electrically connected with a potential signal line.

21. The display panel of claim 20, wherein The first shielding structure is electrically connected with a fixed potential signal line.

22. The display panel of claim 21, wherein, The display panel further includes an iodine-based polarizing layer located on a side of the nitrogen-silicon inorganic layer away from the substrate; The display panel further includes power supply traces located on one side of the substrate; The power supply wires include a first power supply wire, the first shielding structure is electrically connected with the first power supply wire, and the first power supply wire is configured to provide a negative fixed potential signal for the first shielding structure.

23. The display panel of claim 21, wherein, The display panel further includes an iodine-based polarizing layer located on a side of the nitrogen-silicon-based inorganic layer away from the substrate. The display panel further includes power supply wires located on a side of the substrate. The power supply wires include a second power supply wire, the first shielding structure is electrically connected with the second power supply wire, and the second power supply wire is configured to provide a positive fixed potential signal for the first shielding structure.

24. The display panel of claim 19, wherein, The first shielding structure includes a first shielding layer. The display panel further includes a pixel definition layer, and the first shielding layer is located between a film layer in which the signal connection line is located and a film layer in which the pixel definition layer is located. 25.The display panel of claim 24, wherein, The display panel further includes a light-emitting element, the light-emitting element includes a first electrode, and an opening in the pixel definition layer exposes at least part of the first electrode. The first electrode is located in the display area, and a film layer in which the first electrode is located is located between a film layer in which the signal connection line is located and a film layer in which the pixel definition layer is located. The first shielding structure is located in the same layer as the first electrode and is insulated.

26. The display panel of claim 19, wherein, The first shielding structure includes a second shielding layer. The display panel further includes a pixel definition layer, and the second shielding layer is located on a side of the pixel definition layer away from the substrate. 27.The display panel of claim 26, wherein, The display panel further includes at least one touch metal layer. The touch metal layer is located on a side of the pixel definition layer away from the substrate. The second shielding layer is located in the same layer as the at least one touch metal layer. 28.The display panel of claim 18, wherein, The gate shielding structure part and the data shielding structure part are connected to the same potential signal line. 29.The display panel of claim 18, wherein, The gate shielding structure part and the data shielding structure part are independently arranged, and the gate shielding structure part and the data shielding structure part are connected to different potential signal lines. 30.The display panel of claim 29, wherein, The gate signal wires include a first gate signal wire and a second gate signal wire, and the first gate signal wire and the second gate signal wire transmit signals with opposite levels. The gate line via hole area includes a first via hole sub-area and a second via hole sub-area. The first gate signal wire includes a first gate signal transmission line and a first gate signal connection line arranged in different layers, the first gate signal connection line is located on a side of the first gate signal transmission line away from the substrate, and the first gate signal transmission line and the first gate signal connection line are electrically connected through a connection via in the first via hole sub-area. The second gate signal wire includes a second gate signal transmission line and a second gate signal connection line which are arranged in different layers, the second gate signal connection line is located on a side of the second gate signal transmission line away from the substrate, and the second gate signal transmission line and the second gate signal connection line are electrically connected through a connection via in the second via hole sub-area; The gate shielding structure includes a first sub-shielding structure and a second sub-shielding structure; The first sub-shielding structure at least partially overlaps the first via hole sub-area along the thickness direction of the display panel, and the second sub-shielding structure at least partially overlaps the second via hole sub-area; The potential signal connected to the first sub-shielding structure is different from the potential signal connected to the second sub-shielding structure.

31. The display panel of claim 19, wherein The first via hole area includes a plurality of connection vias arranged along a second direction; The first shielding structure extends along the second direction, and the second direction intersects with a direction in which the display area points to the bending area.

32. The display panel of claim 19, wherein The first shielding structure at least partially overlaps the signal connection line along the thickness direction of the display panel.

33. The display panel of claim 19, wherein The bending area further includes a second via hole area; The second via hole area is located on a side of the bending area away from the first via hole area; The display panel further includes a second shielding structure; The second shielding structure at least partially overlaps the second via hole area along the thickness direction of the display panel.

34. The display panel of claim 18, wherein The display area further includes a data signal line and a signal wiring; The data signal line includes a first data signal line and a second data signal line, and the display area includes a first display area and a second display area, the second display area is located on both sides of the first display area along a second direction, and the second direction intersects with a direction in which the display area points to the bending area; The first data signal line is located in the second display area, and the second data signal line is located in the first display area; The first data signal line is electrically connected to a data signal transmission line in the first via hole area through the signal wiring; The second data signal line is electrically connected to the data signal transmission line in the first via hole area; The signal wiring includes a first signal wiring and a second signal wiring which are connected to each other, and the extension directions of the first signal wiring and the second signal wiring intersect with each other.

35. The display panel of claim 18, wherein The display panel further includes a first metal layer, a third metal layer and a fourth metal layer which are arranged in different layers on a side of the substrate; The signal wire includes a data signal wire, and the data signal wire includes a data signal transmission line and a data signal connection line; The data signal transmission line is located in the first metal layer, the data signal connection line is located in the fourth metal layer, and the display panel further includes a first jumper structure located in the third metal layer. The connection via includes a first connection via and a second connection via, and the first connection via and the second connection via at least partially overlap in a thickness direction of the display panel. The data signal connection line is electrically connected with the first bridging structure through the first connection via, and the first bridging structure is electrically connected with the data signal transmission line through the second connection via. 36.The display panel of claim 18, wherein, The display panel further comprises a second metal layer, a third metal layer and a fourth metal layer which are arranged in a stack on one side of the substrate. The signal trace includes a data signal trace, and the data signal trace includes a data signal transmission line and a data signal connection line. The data signal transmission line is located on the second metal layer, and the data signal connection line is located on the fourth metal layer. The display panel further comprises a first bridging structure which is located on the third metal layer. The connection via includes a first connection via and a third connection via, and the first connection via and the third connection via at least partially overlap in a thickness direction of the display panel.

37. A display device comprising: The data signal connection line is electrically connected with the first bridging structure through the first connection via, and the first bridging structure is electrically connected with the data signal transmission line through the third connection via. A display panel as claimed in any one of claims 1 to 36.

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