Display panel and display device

Abstract

The present invention discloses a display panel and a display device. The display panel includes: a first display area is arranged adjacent to a hole area along a first direction; the hole area includes a hole and a first non-display area surrounding the hole; the first display area includes a plurality of sub-pixels, each sub-pixel includes a pixel driving circuit and a light-emitting unit, and the pixel driving circuit includes a compensation module and a driving module; the first display area includes a first scan line, the control end of the compensation module is electrically connected to the first scan line, and the first scan line extends along a first direction; the first non-display area includes a first winding portion, the first winding portion extends from one side of the hole to the other side of the hole along the first direction, and the first winding portion is electrically connected to the first scan line; the thickness of at least one of the two insulating layers adjacent to the film layer where the first winding portion is located is greater than a set value. The embodiment of the present invention can improve the display unevenness of the display panel and enhance the display effect of the display panel.

Description

Technical Field

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

[0002] With the development of display technology, people have higher and higher requirements on the display performance of display panels. However, existing display panels are prone to display unevenness, which affects the display effect of the display panel. Summary of the invention

[0003] The present invention provides a display panel and a display device to improve the display unevenness of the display panel and enhance the display effect of the display panel.

[0004] According to one aspect of the present invention, there is provided a display panel, comprising:

[0005] A hole area and a display area; the display area includes a first display area; the first display area is arranged adjacent to the hole area along a first direction; the hole area includes a hole and a first non-display area surrounding the hole;

[0006] The first display area includes a plurality of sub-pixels, each of the sub-pixels includes a pixel driving circuit and a light-emitting unit, the pixel driving circuit includes a compensation module and a driving module; the driving module is used to drive the light-emitting unit to emit light, and the compensation module is used to perform threshold compensation on the driving module;

[0007] The first display area includes a first scan line, the control end of the compensation module is electrically connected to the first scan line, and the first scan line extends along the first direction; the first non-display area includes a first winding portion, the first winding portion extends from one side of the hole to the other side of the hole along the first direction, and the first winding portion is electrically connected to the first scan line;

[0008] The thickness of at least one of the two insulating layers adjacent to the film layer where the first winding portion is located is greater than a set value.

[0009] Optionally, the set value is greater than or equal to 1.6 mil.

[0010] Optionally, the first display area includes a first sub-display area and a second sub-display area, and the first sub-display area and the second sub-display area are located on both sides of the hole area along the first direction;

[0011] Two ends of the first winding portion are electrically connected to the first scan line of the first sub-display area and the first scan line of the second sub-display area, respectively.

[0012] Optionally, the pixel driving circuit further includes a data writing module, the data writing module is used to write a data voltage to the control end of the driving module, the first display area further includes a second scanning line, and the control end of the data writing module is electrically connected to the second scanning line;

[0013] The first non-display area further includes a second winding portion extending from one side of the hole to the other side of the hole along a first direction, and the second winding portion is electrically connected to the second scanning line.

[0014] Optionally, the second winding portion includes a first sub-wire and a second sub-wire connected in parallel with each other, and the first sub-wire and the second sub-wire are arranged in different film layers.

[0015] Optionally, the first sub-wire and the second sub-wire are both in different layers from the first winding portion.

[0016] Optionally, the pixel driving circuit further includes a light emitting control module, and the first display area further includes a light emitting control line; a control end of the light emitting control module is electrically connected to the light emitting control line, and the light emitting control module is used to control the light emitting unit to emit light according to a driving current output by the driving module according to a signal on the light emitting control signal line;

[0017] The first non-display area also includes a light-emitting control winding portion, which extends from one side of the hole to the other side of the hole along a first direction, and is electrically connected to the light-emitting control line; the light-emitting control winding portion is arranged on the same layer as the first winding portion.

[0018] Optionally, the pixel driving circuit also includes a first initialization module, which is used to initialize the control end of the driving module; the first display area also includes a third scanning line, and the control end of the first initialization module is electrically connected to the third scanning line; the first non-display area also includes a third winding portion, and the third winding portion extends from one side of the hole to the other side of the hole along the first direction, and the third winding portion is electrically connected to the third scanning line; the third winding portion, the second winding portion and the first winding portion are all in different layers.

[0019] Optionally, the pixel driving circuit also includes a second initialization module, which is used to initialize the first pole of the light-emitting unit. The first display area also includes a fourth scanning line, and the control end of the second initialization module is electrically connected to the fourth scanning line; the first non-display area also includes a fourth winding portion, and the fourth winding portion extends from one side of the hole to the other side of the hole along the first direction, the fourth winding portion is electrically connected to the fourth scanning line, and the fourth winding portion and the third winding portion are arranged on the same layer.

[0020] Optionally, the pixel driving circuit further includes a third initialization module, which is used to initialize the first end of the driving module, and the control end of the third initialization module is electrically connected to the fourth scanning line, wherein the first end of the driving module is electrically connected to the light-emitting unit.

[0021] Optionally, the display area further includes a second display area and a third display area, and the second display area and the third display area are arranged on both sides of the hole area along the second direction;

[0022] The second display area and the third display area both include data lines, and the data lines extend along a second direction, wherein the second direction intersects with the first direction;

[0023] The first non-display area further includes a data line winding portion, the data line winding portion extends from one side of the hole to the other side of the hole along the second direction, and two ends of the data line winding portion are electrically connected to the data lines of the second display area and the third display area respectively;

[0024] The data line winding portion is in a different layer from the first winding portion, the second winding portion, the third winding portion, the fourth winding portion, and the light emission control winding portion.

[0025] Optionally, the sub-pixel includes a first color sub-pixel, a second color sub-pixel and a third color sub-pixel, the data line connected to the first color sub-pixel is a first data line, the data line connected to the third color sub-pixel is a third data line, and the data line connected to the second color sub-pixel is a second data line.

[0026] Optionally, the data line winding portion includes a first data line winding portion, a second data line winding portion and a third data line winding portion; the first data line winding portion is electrically connected to the first data line, the second data line winding portion is electrically connected to the second data line, the third data line winding portion is electrically connected to the third data line, the third data line winding portion and the first data line winding portion are arranged on the same layer, and the third data line winding portion and the second data line winding portion are on a different layer.

[0027] Optionally, the display panel has multiple metal layers, an insulating layer is provided between every two adjacent metal layers, and the thickness of the insulating layer adjacent to the metal layer where the first winding portion is located is greater than the thickness of other insulating layers.

[0028] Optionally, the display panel includes a substrate, a first metal layer, a first insulating layer, a second metal layer, a second insulating layer, a third metal layer, a third insulating layer, a fourth metal layer, a fourth insulating layer, a fifth metal layer, a fifth insulating layer and a sixth metal layer stacked in sequence;

[0029] The first winding portion is located in the fifth metal layer, the first sub-wire is located in the second metal layer, the second sub-wire is located in the third metal layer, the third winding portion and the fourth winding portion are arranged in the first metal layer; the thickness of the first insulating layer, the second insulating layer and the third insulating layer are all smaller than the thickness of the fourth insulating layer and the fifth insulating layer.

[0030] Optionally, the third data line winding portion and the first data line winding portion are located in the fourth metal layer, and the second data line winding portion is located in the sixth metal layer.

[0031] Optionally, the display area also includes a first power line and an initialization signal line, the first power line is located at the fourth metal layer and the sixth metal layer, and the initialization signal line is located at the fourth metal layer; the second scan line, the fourth scan line and the light-emitting control line are located at the first metal layer; the first scan line is located at the third metal layer and the second metal layer; the third scan line is located at the third metal layer and the second metal layer; the first data line, the second data line and the third data line are all located at the fifth metal layer.

[0032] Optionally, the first display area includes a plurality of pixel row groups sequentially arranged along a second direction, each pixel row group includes at least two sub-pixel rows adjacent to each other along the second direction, and each of the sub-pixel rows includes a plurality of sub-pixels sequentially arranged along the first direction; wherein the second direction intersects with the first direction;

[0033] The first scanning lines connected to the sub-pixel rows in each pixel row group are electrically connected to the same first winding portion, and different pixel row groups are connected to different first winding portions.

[0034] Optionally, the second scan lines connected to each sub-pixel row in each pixel row group are electrically connected to the same second winding portion, and different pixel row groups are connected to different second winding portions.

[0035] Optionally, the light emitting control lines connected to the sub-pixel rows in each pixel row group are electrically connected to the same light emitting control line portion, and the light emitting control winding portions connected to different pixel row groups are different.

[0036] Optionally, the third scan lines connected to each sub-pixel row in each pixel row group are electrically connected to the same third winding portion, and different pixel row groups are connected to different third winding portions.

[0037] Optionally, the fourth scan lines connected to the sub-pixel rows in each pixel row group are electrically connected to the same fourth winding portion, and different pixel row groups are connected to different fourth winding portions.

[0038] Optionally, each pixel row group includes two sub-pixel rows.

[0039] Optionally, the first winding portion and the second winding portion connected to the same pixel row group do not overlap.

[0040] Optionally, the second winding portion connected to each pixel row group at least partially overlaps with the first winding portion connected to the next pixel row group of the pixel row group; wherein, the next pixel row group of the pixel row group is a pixel row group adjacent to the pixel row group and is lit after the pixel row group is lit.

[0041] Optionally, the driving module includes a driving transistor, the compensation module includes a first transistor; the data writing module includes a second transistor; the light emitting control module includes a third transistor and a fourth transistor; the first initialization module includes a fifth transistor; the second initialization module includes a sixth transistor; and the third initialization module includes a seventh transistor.

[0042] Optionally, the hole is used to set an optical sensor.

[0043] Optionally, the optical sensor includes a camera.

[0044] Preferably, the display area comprises a first edge and a second edge arranged opposite to each other along a first direction, and the hole area is at the same or different distances from the first edge and the second edge.

[0045] According to another aspect of the present invention, a display device is provided, comprising the display panel according to any embodiment of the present invention.

[0046] The display panel of the embodiment of the present invention comprises a hole area and a display area; the display area comprises a first display area; the first display area is arranged adjacent to the hole area along a first direction; the hole area comprises a hole and a first non-display area surrounding the hole; the first display area comprises a first scan line, a control end of a compensation module is electrically connected to the first scan line, the first non-display area comprises a first winding portion, the first winding portion extends from one side of the hole to the other side of the hole along the first direction, the first winding portion is electrically connected to the first scan line, at least one of the two insulating layers adjacent to the film layer where the first winding portion is located has a thickness greater than a set value, so that there is a thicker insulating layer between the first winding portion and the adjacent conductive layer, so that the capacitance on the first winding portion is smaller, so that the difference between the capacitance of the first scan line and the first winding portion in the first display area and the capacitance of the first scan line in the normal display area is smaller, so that the difference between the load of the first scan line and the first winding portion and the load of the first scan line in the normal display area is smaller, so that the difference in data writing between sub-pixels in the first display area and the normal display area is smaller, the brightness difference between the first display area and the normal display area is reduced, the brightness uniformity of the display panel is improved, and the display effect of the display panel is improved.

[0047] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0049] Figure 1 is a top view of a display panel provided by an embodiment of the present invention;

[0050] Figure 2 yes Figure 1 A partial enlarged view of

[0051] Figure 3 yes Figure 2 The cross-section of the panel along the section line AA is shown in FIG.

[0052] Figure 4 is a schematic diagram of a sub-pixel provided by an embodiment of the present invention;

[0053] Figure 5 is a partial enlarged view of another display panel provided by an embodiment of the present invention;

[0054] Figure 6 is a partial enlarged view of another display panel provided by an embodiment of the present invention;

[0055] Figure 7 is a partial enlarged view of another display panel provided by an embodiment of the present invention;

[0056] Figure 8 is a partial enlarged view of another display panel provided by an embodiment of the present invention;

[0057] Fig. 9 is a schematic diagram of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0058] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0059] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0060] As mentioned in the background technology, the existing display panels have uneven display, which affects the display effect of the display panel. The inventors have found through long-term research that the reason for this problem is that: at present, the display area width of the display panel is getting larger and larger, especially the foldable display panel, which has a larger display area width. Due to the large display area width, the load of the display panel scan line increases. When the display area is provided with an optical hole such as a camera hole, since there are no sub-pixels at the hole, the load of the scan lines on the left and right sides of the hole is inconsistent with the normal display area, resulting in uneven display when the display panel displays the picture, affecting the display effect.

[0061] Based on the above problems, an embodiment of the present invention provides a display panel. Figure 1 is a top view of a display panel provided by an embodiment of the present invention, Figure 2 yes Figure 1 A partial enlarged view of Figure 3 yes Figure 2 The cross-section of the panel along the section line AA is shown in FIG. Figure 4 is a schematic diagram of a sub-pixel provided by an embodiment of the present invention, with reference to Figure 1-Figure 4 , the display panel includes:

[0062] The hole area 20 and the display area 10; the display area 10 includes a first display area 11; the first display area 11 is arranged adjacent to the hole area 20 along the first direction X; the hole area 20 includes a hole 21 and a first non-display area 22 surrounding the hole 21;

[0063] The first display area 11 includes a plurality of sub-pixels 30, each of which includes a pixel driving circuit 301 and a light-emitting unit 302, and the pixel driving circuit 301 includes a compensation module 31 and a driving module 32; the driving module 32 is used to drive the light-emitting unit 302 to emit light, and the compensation module 31 is used to perform threshold compensation on the driving module 32;

[0064] The first display area 11 includes a first scan line S1, the control end of the compensation module 31 is electrically connected to the first scan line S1, and the first scan line S1 extends along the first direction X; the first non-display area 22 includes a first winding portion 41, the first winding portion 41 extends from one side of the hole 21 to the other side of the hole 21 along the first direction X, and the first winding portion 41 is electrically connected to the first scan line S1;

[0065] The thickness of at least one of the two insulating layers adjacent to the film layer where the first winding portion S1 is located is greater than a set value.

[0066] Specifically, the display area 10 is used to display images, and the hole area 20 is a non-display area, and the hole area 20 does not display images. The hole 21 is used to set an optical sensor, and the optical sensor can be a camera, etc. The first direction X is the row direction of the display panel, and the first display area 11 can be set on one side or both sides of the hole area 20 along the first direction X.

[0067] The pixel driving circuit 301 is used to drive the light-emitting unit 302 to emit light. The light-emitting unit 302 may be an organic light-emitting unit. The pixel driving circuit 301 may include a plurality of transistors and at least one capacitor. Exemplarily, the pixel driving circuit 301 may include 7 transistors and one capacitor, or may include 8 transistors and one capacitor. The driving module 32 is used to output a driving current to the light-emitting unit 302 to drive the light-emitting unit 302 to emit light. The first end of the compensation module 31 is connected to the control end of the driving module 32, and the second end of the compensation module 31 is connected to the first end of the driving module 32. The compensation module 31 is used to perform threshold compensation on the driving module 32. The driving module 32 may include a driving transistor T0, and the compensation module 31 may include a first transistor T1. The first scanning line S1 and the first winding portion 41 are used to transmit a first scanning signal to the compensation module 31 of the first display area 11 to control the on and off of the compensation module 31. The normal display area, that is, the display area not adjacent to the hole area 20 along the first direction X, also includes a first scan line S1. The first scan line S1 of the normal display area extends from one side of the display area 10 to the other side along the first direction X. The first scan line S1 of the normal display area is used to transmit a first scan signal to the compensation module 31 of the sub-pixel 30 of the normal display area.

[0068] The pixel driving circuit 301 may also include a data writing module 33. When the sub-pixel 30 emits light, the data signal is first written to the control end of the driving module 32 through the data writing module 33. During the writing process, the data signal is written to the control end of the driving module 32 through the data writing module 33 and the compensation module 31. The conduction state of the compensation module 32 has a great influence on the writing of the data signal. In the related art, the load of the first scanning line S1 in the first display area 11 is large, which causes the conduction state of the compensation module 31 to be affected, thereby causing the data voltage written to the control end of the driving module 32 to be affected, resulting in the display brightness of the sub-pixel 30 in the first display area 11 being different from the display brightness of the sub-pixel 30 in other display areas, resulting in uneven display. In this embodiment, by setting the thickness of at least one of the two insulating layers adjacent to the first winding portion 41 connected to the first scanning line S1 to be greater than a set value, a thicker insulating layer is provided between the first winding portion 41 and the adjacent conductive layer, so that the capacitance on the first winding portion 41 is smaller, thereby making the difference between the capacitance between the first scanning line S1 and the first winding portion 41 and the capacitance of the first scanning line S1 in the normal display area smaller, making the difference between the load on the first scanning line S1 and the first winding portion 41 and the load of the first scanning line S1 in the normal display area smaller, making the difference in data writing between the sub-pixels 30 in the first display area 11 and the normal display area smaller, reducing the brightness difference between the first display area 11 and the normal display area, and improving the brightness uniformity of the display panel.

[0069] Exemplarily, the thickness of two adjacent insulating layers of the first winding portion 41 is greater than a set value. The set value can be set as needed. Exemplarily, the set value can be greater than or equal to 1.6 mil, etc.

[0070] The display panel of the embodiment of the present invention includes a hole area 20 and a display area 10; the display area 10 includes a first display area 11; the first display area 11 is arranged adjacent to the hole area 20 along the first direction X; the hole area 20 includes a hole 21 and a first non-display area 22 surrounding the hole 21; the first display area 11 includes a first scan line S1, the control end of the compensation module 31 is electrically connected to the first scan line S1, the first non-display area 22 includes a first winding portion 41, the first winding portion 41 extends from one side of the hole 21 to the other side of the hole 21 along the first direction X, the first winding portion 41 is electrically connected to the first scan line S1, and the thickness of at least one of the two insulating layers adjacent to the film layer where the first winding portion S1 is located is greater than At the set value, there is a thicker insulating layer between the first winding portion 41 and the adjacent conductive layer, so that the capacitance on the first winding portion 41 is smaller, so that the capacitance of the first scanning line S1 and the first winding portion 41 in the first display area 11 is smaller than the capacitance of the first scanning line S1 in the normal display area, and the load of the first scanning line S1 and the first winding portion 41 is smaller than the load of the first scanning line S1 in the normal display area, so that the data writing difference between the sub-pixels 30 in the first display area 11 and the normal display area is smaller, which reduces the brightness difference between the first display area 11 and the normal display area, improves the brightness uniformity of the display panel, and improves the display effect of the display panel.

[0071] Based on the above embodiment, optionally, the set value is greater than or equal to 1.6 mil.

[0072] Specifically, when the thickness of the insulating layer adjacent to the first winding portion 41 is greater than 1.6 mil, the first winding portion 41 has a smaller capacitance, so that the first winding portion 41 and the first scanning line S1 have a smaller load, so that the load on the first scanning line S1 in the first display area 11 and the load on the first winding portion 41 have a smaller load difference with the first scanning line S1 in the normal display area, so that the data writing difference between the sub-pixels 30 in the first display area 11 and the normal display area is smaller, reducing the brightness difference between the first display area 11 and the normal display area, improving the brightness uniformity of the display panel, and improving the display effect of the display panel.

[0073] For example, the thickness of two adjacent insulating layers of the first winding portion 41 may be 1.7 mil, 1.8 mil, 1.9 mil, or 2 mil.

[0074] On the basis of the above embodiment, optionally, the first display area 11 includes a first sub-display area 111 and a second sub-display area 112, and the first sub-display area 111 and the second sub-display area 112 are located on both sides of the hole area 20 along the first direction X;

[0075] Two ends of the first winding portion 41 are electrically connected to the first scan line S1 of the first sub-display area 111 and the first scan line S1 of the second sub-display area 112 , respectively.

[0076] On the basis of the above embodiment, optionally, the pixel driving circuit 301 further includes a data writing module 33, the data writing module 33 is used to write a data voltage to the control end of the driving module 32, the first display area 11 further includes a second scanning line S2, and the control end of the data writing module 33 is electrically connected to the second scanning line S2;

[0077] The first non-display area 22 further includes a second winding portion 42 , which extends from one side of the hole 21 to the other side of the hole 21 along the first direction X, and the second winding portion 42 is electrically connected to the second scan line S2 ;

[0078] The second winding portion 42 includes a first sub-wire 421 and a second sub-wire 422 connected in parallel with each other, and the first sub-wire 421 and the second sub-wire 422 are arranged in different film layers.

[0079] Specifically, the first end of the data writing module 33 is electrically connected to the second end of the driving module 32, and the second end of the data writing module 33 is electrically connected to the data line Data. The second scanning line S2 and the second winding portion 42 are used to input a second scanning signal to the data writing module 33 of the first display area 11, control the data writing module 33 to be turned on, and write the data signal on the data line Data to the control end of the driving module 32. The normal display area also includes a second scanning line S2, and the second scanning line S2 of the normal display area extends from one side of the display area to the other side along the first direction X. The second scanning line S2 of the normal display area is used to transmit the second scanning signal to the data writing module 33 of the sub-pixel 30 in the normal display area.

[0080] The inventor has found through long-term research that in the related art, the load difference between the second scan line S2 in the first display area 11 and the second scan line S2 in the normal display area is relatively large, resulting in a difference in the data signal written to the control end of the driving module 32. In this embodiment, by setting the second winding portion 42 to include a first sub-line 421 and a second sub-line 422 connected in parallel, the resistance of the second winding portion 42 can be reduced, thereby reducing the load difference between the second scan line S2 in the first display area 11 and the second winding portion 42 and the second scan line S2 in the normal display area, further reducing the data writing difference between the sub-pixels 30 in the first display area 11 and the normal display area, further reducing the brightness difference between the first display area 11 and the normal display area, improving the brightness uniformity of the display panel, and improving the display effect of the display panel.

[0081] On the basis of the above embodiment, optionally, the first sub-wire 421 and the second sub-wire 422 are both in different layers from the first winding portion 41 .

[0082] With such an arrangement, the first sub-line 421, the second sub-line 422 and the first winding portion 41 all have a larger wiring space, so that the first sub-line 421, the second sub-line 422 and the first winding portion 41 can have a larger spacing with other conductive layers, and the first sub-line 421, the second sub-line 422 and the first winding portion 41 can also have a larger spacing, thereby further reducing the capacitance on the first sub-line 421, the second sub-line 422 and the first winding portion 41, reducing the capacitance difference between the first winding portion 41 and the first scanning line S1 in the first display area 11 and the first scanning line S1 in the normal display area, reducing the capacitance difference between the second winding portion 42 and the second scanning line S2 in the first display area 11 and the second scanning line S2 in the normal display area, further reducing the data writing difference between the sub-pixels 30 in the first display area 11 and the normal display area, further reducing the brightness difference between the first display area 11 and the normal display area, improving the brightness uniformity of the display panel, and improving the display effect of the display panel.

[0083] On the basis of the above embodiment, optionally, the pixel driving circuit 301 further includes a light emitting control module 34, and the first display area 11 further includes a light emitting control line EM; the control end of the light emitting control module 34 is electrically connected to the light emitting control line EM, and the light emitting control module 34 is used to control the light emitting unit 302 to emit light according to the driving current output by the driving module 32 according to the signal on the light emitting control signal line EM;

[0084] The first non-display area 21 also includes a light-emitting control winding portion 45, which extends from one side of the hole 21 to the other side of the hole 21 along the first direction X, and is electrically connected to the light-emitting control line EM; the light-emitting control winding portion 45 is arranged on the same layer as the first winding portion 41.

[0085] Specifically, the light-emitting control module 34, the driving module 32, and the light-emitting unit 302 are connected in series between the first power line ELVDD and the second power line ELVSS. The light-emitting control line EM and the light-emitting control winding portion 45 are used to transmit a light-emitting control signal to the light-emitting control module 34 of the first display area 11, so that the light-emitting control module 34 is turned on, and the driving module 32 outputs a driving current to the light-emitting unit 302, thereby driving the light-emitting unit 302 to emit light. The normal display area also includes a light-emitting control line EM, and the light-emitting control line EM of the normal display area extends from one side of the display area to the other side along the first direction X. The light-emitting control line EM of the normal display area is used to transmit a light-emitting control line signal to the light-emitting control module 34 of the sub-pixel 30 in the normal display area.

[0086] By setting the light-emitting control winding part 45 and the first winding part 41 in the same layer, the light-emitting control winding part 45 has a smaller capacitance with other conductive layers, which reduces the capacitance on the light-emitting control winding part 45 and the light-emitting control line EM of the first display area 11, thereby reducing the capacitance difference between the light-emitting control winding part 45 and the light-emitting control line EM of the first display area 11 and the light-emitting control line EM of the normal display area, thereby reducing the load difference between the light-emitting control winding part 45 and the light-emitting control line EM of the first display area 11 and the light-emitting control line EM of the normal display area, and further reducing the brightness difference between the first display area 11 and the normal display area. In addition, the light-emitting control winding part 45 and the first winding part 41 are set in the same layer, so that the two can be prepared in the same process, reducing the manufacturing process steps of the display panel, and can fully utilize the wiring space of the film layer where the first winding part 41 is located, without adding a new film layer, reducing the thickness and size of the first non-display area 22.

[0087] On the basis of the above embodiment, optionally, the pixel driving circuit 301 also includes a first initialization module 35, which is used to initialize the control end of the driving module 32; the first display area 11 also includes a third scanning line S3, and the control end of the first initialization module 35 is electrically connected to the third scanning line S3; the first non-display area 21 also includes a third winding portion 43, the third winding portion 43 extends from one side of the hole to the other side of the hole along the first direction X, and the third winding portion 43 is electrically connected to the third scanning line S3; the third winding portion 43, the second winding portion 42 and the first winding portion 41 are all in different layers.

[0088] Specifically, the first end of the first initialization module 35 is electrically connected to the second end of the compensation module 31, and the second end of the first initialization module 35 is used to receive the first initialization signal VREFN1. The third scan line S3 of the first display area 11 and the third winding portion 43 are used to transmit the third scan signal to the first initialization module 35, so that the first initialization signal VREFN1 is transmitted to the control end of the driving module 32 through the compensation module 31, and the control end of the driving module 32 is initialized. The normal display area also includes a third scan line S3, and the third scan line S3 of the normal display area extends from one side of the display area to the other side along the first direction X. The third scan line S3 of the normal display area is used to transmit the third scan signal to the first initialization module 35 of the sub-pixel 30 of the normal display area.

[0089] In the related art, there is a load difference between the third scan line S3 in the first display area 11 and the normal display area, which affects the conduction state of the first initialization module 35 and the initialization degree of the control end of the driving module 32, resulting in a brightness difference between the first display area 11 and the normal display area. In this embodiment, the third winding part 43, the second winding part 42 and the first winding part 41 are arranged in different layers, so that the third winding part 43, the second winding part 42 and the first winding part 41 all have a larger wiring space, so that the third winding part 43, the second winding part 42 and the first winding part 41 can also have a larger spacing with other conductive layers, and the third winding part 43, the second winding part 42 and the first winding part 41 can also have a larger spacing with each other, so that the third winding part 43, the second winding part 42 and the first winding part 41 all have smaller capacitance, further reducing the capacitance difference on the scanning line between the first display area 11 and the normal display area, reducing the load difference, reducing the data writing difference between the first display area 11 and the normal display area and the initialization difference of the control end of the driving module 32, thereby further reducing the brightness difference between the first display area 11 and the normal display area, and improving the display effect of the display panel.

[0090] On the basis of the above embodiment, optionally, the pixel driving circuit 301 also includes a second initialization module 36, which is used to initialize the first pole of the light-emitting unit 302, and the first display area 11 also includes a fourth scanning line S4, and the control end of the second initialization module 36 is electrically connected to the fourth scanning line S4; the first non-display area 21 also includes a fourth winding portion 44, and the fourth winding portion 44 extends from one side of the hole 21 to the other side of the hole 21 along the first direction X, and the fourth winding portion 44 is electrically connected to the fourth scanning line S4, and the fourth winding portion 44 and the third winding portion 43 are arranged on the same layer.

[0091] Specifically, a first end of the second initialization module 36 is electrically connected to a first electrode of the light emitting unit 302, and a second end of the second initialization module 36 is used to receive a second initialization signal VREFN2. A first electrode of the light emitting unit 302 is electrically connected to the light emitting control module 34, and a second electrode of the light emitting unit 32 is electrically connected to the second power line ELVSS. The normal display area also includes a fourth scan line S4, and the fourth scan line S4 of the normal display area extends from one side of the display area to the other side along the first direction X. The fourth scan line S4 of the normal display area is used to transmit a fourth scan signal to the second initialization module 36 of the sub-pixel 30 of the normal display area.

[0092] In the related art, there is a load difference between the fourth scan line S4 in the first display area 11 and the normal display area, which affects the conduction state of the second initialization module 36 and the initialization degree of the light-emitting unit 302, resulting in a brightness difference between the first display area 11 and the normal display area. In this embodiment, the fourth winding part 44 and the third winding part 43 are arranged on the same layer, and the third winding part 43, the second winding part 42 and the first winding part 41 are all on different layers, so that the fourth winding part 44, the third winding part 43, the second winding part 42 and the first winding part 41 all have a larger wiring space, so that the fourth winding part 44 and the adjacent conductive layer have a smaller capacitance, thereby reducing the capacitance difference between the fourth winding part 44 and the fourth scanning line S4 in the first display area 11 and the fourth scanning line S4 in the normal display area, reducing the capacitance difference between the fourth winding part 44 and the fourth scanning line S4 in the first display area 11 and the fourth scanning line S4 in the normal display area, reducing the initialization difference of the first pole of the light-emitting unit 302 in the first display area 11 and the normal display area, further reducing the brightness difference between the first display area 11 and the normal display area, improving the brightness uniformity of the display panel, and improving the display effect of the display panel.

[0093] On the basis of the above embodiment, optionally, the pixel driving circuit 301 also includes a third initialization module 37, which is used to initialize the first end of the driving module 32, and the control end of the third initialization module 37 is electrically connected to the fourth scan line S4, wherein the first end of the driving module 32 is electrically connected to the light-emitting unit 302.

[0094] Specifically, a first end of the third initialization module 37 is electrically connected to a first end of the driving module 32, and a second end of the third initialization module 37 is used to receive a third initialization signal VREFP1. Similar to the above embodiment, this embodiment can reduce the initialization difference between the first end of the driving module 32 in the first display area 11 and the normal display area, further reduce the brightness difference between the first display area 11 and the normal display area, improve the brightness uniformity of the display panel, and improve the display effect of the display panel.

[0095] Figure 5 is a partial enlarged view of another display panel provided by an embodiment of the present invention. Based on the above embodiment, optionally, refer to Figure 2-Figure 5 , the display area 10 further includes a second display area 12 and a third display area 13, and the second display area 12 is arranged on both sides of the hole area 20 along the second direction Y;

[0096] The second display area 12 and the third display area 13 both include data lines Data, and the data lines Data extend along a second direction Y, wherein the second direction Y intersects with the first direction X;

[0097] The first non-display area 22 further includes a data line winding portion 46, which extends from one side of the hole 21 to the other side of the hole 21 along the second direction Y, and two ends of the data line winding portion 46 are electrically connected to the data lines Data of the second display area 12 and the third display area 13 respectively;

[0098] The data line winding portion 46 is located at a different layer from the first winding portion 41 , the second winding portion 42 , the third winding portion 43 , the fourth winding portion 44 and the light emission control winding portion 45 .

[0099] Specifically, the data line Data is electrically connected to the data writing module 33 of the sub-pixel 30, and the data line Data is used to transmit a data signal to the data writing module 33. The normal display area also includes the data line Data, and the data line Data in the normal display area extends along the second direction Y from one side of the display area 10 to the other side.

[0100] In the related art, the load on the data line Data in the second display area 12 and the third display area 13 is different from that on the data line Data in the normal display area, which affects the transmission of the data signal, thereby affecting the display brightness of the second display area 12 and the third display area 13. In this embodiment, by setting the data line winding part 46 and the first winding part 41, the second winding part 42, the third winding part 43, the fourth winding part 44 and the light-emitting control winding part 45 in different layers, there is a large spacing between each winding part, the influence between each winding part is small, and each winding part has a small capacitance. The capacitance difference and load difference between the data line Data in the second display area 12 and the third display area 13 and the data line winding part 46 and the data line Data in the normal display area are small, so that the data signal difference transmitted by the data line Data in the second display area 12 and the third display area 13 and the data line winding part 46 and the data line Data in the normal display area is small, the display brightness difference between the second display area 12 and the third display area 13 and the normal display area is reduced, and the display uniformity of the display panel is further improved.

[0101] It should be noted that the second display area 12 and the third display area 13 may have overlapping areas with the first display area 11 (that is, some sub-pixels 30 belong to both the first display area 11 and the second display area 12 or the third display area 13), or there may be no overlapping areas, which is not specifically limited in this embodiment.

[0102] Figure 6 is a partial enlarged view of another display panel provided by an embodiment of the present invention. Based on the above embodiment, optionally, refer to Figure 3 and Figure 6, the sub-pixel includes a first color sub-pixel, a second color sub-pixel and a third color sub-pixel, the data line connected to the first color sub-pixel is the first data line D1, the data line connected to the third color sub-pixel is the third data line D3, and the data line connected to the second color sub-pixel is the second data line D2;

[0103] The data line winding portion includes a first data line winding portion 461, a second data line winding portion 462 and a third data line winding portion 463; the first data line winding portion 461 is electrically connected to the first data line D1, the second data line winding portion 462 is electrically connected to the second data line D2, and the third data line winding portion 463 is electrically connected to the third data line D3. The third data line winding portion 463 and the first data line winding portion 461 are arranged on the same layer, and the third data line winding portion 463 and the second data line winding portion 462 are on different layers.

[0104] Specifically, the first color sub-pixel, the second color sub-pixel and the third color sub-pixel can be a red sub-pixel, a green sub-pixel and a blue sub-pixel, respectively. By arranging the data line winding parts of different color sub-pixels in two layers, the wiring space of each data line winding part can be further increased, the spacing between each data line winding part and between the data line winding part and other winding parts can be increased, the capacitance of each data line winding part and the capacitance of other winding parts can be reduced, and the display difference between the display area around the hole area 20 and other display areas can be further reduced, thereby improving the display uniformity of the display panel.

[0105] In this embodiment, the film layer is designed for the winding parts of each scanning line, light-emitting control line and data line, so that the mutual influence between the winding parts is small, and each winding part has a smaller capacitance and a smaller load, thereby reducing the load difference between the scanning lines, light-emitting control lines and data lines in the display area around the hole area and the scanning lines, light-emitting control lines and data lines in the normal display area, thereby reducing the display difference between the display area around the hole area and the normal display area, improving the display uniformity of the display panel, and improving the display effect of the display panel.

[0106] The specific positions of each winding part are described below in combination with the specific film layer of the display panel:

[0107] Based on the above embodiment, optionally, refer to Figure 3 The display panel has multiple metal layers (71-76 are all metal layers), an insulating layer (81-85 are all insulating layers) is arranged between each two adjacent metal layers, and the thickness of the insulating layer adjacent to the metal layer where the first winding part 41 is located is greater than the thickness of other insulating layers.

[0108] This configuration can minimize the capacitance on the first winding portion 41, reduce the load of the first scanning line of the first display area and the first winding portion 41, minimize the load difference between the first scanning line of the first display area and the normal display area, thereby minimizing the brightness difference and improving the display uniformity of the display panel.

[0109] Based on the above embodiment, optionally, refer to Figure 3 The display panel includes a substrate 70, a first metal layer 71, a first insulating layer 81, a second metal layer 72, a second insulating layer 82, a third metal layer 73, a third insulating layer 83, a fourth metal layer 74, a fourth insulating layer 84, a fifth metal layer 75, a fifth insulating layer 85 and a sixth metal layer 76 which are stacked in sequence;

[0110] The first winding portion 41 is located in the fifth metal layer 75, the first sub-wire 421 is located in the second metal layer 72, and the second sub-wire 422 is located in the third metal layer 73; the third winding portion 43 and the fourth winding portion 44 are arranged in the first metal layer 71; the thickness of the first insulating layer 81, the second insulating layer 82 and the third insulating layer 83 are all smaller than the thickness of the fourth insulating layer 84 and the fifth insulating layer 85.

[0111] The pixel driving circuit includes a plurality of transistors and capacitors, wherein the plurality of transistors include a first type transistor and a second type transistor. Exemplarily, the first type transistor is a low temperature polysilicon LTPS transistor, and the second type transistor is an indium gallium zinc oxide IGZO transistor. The first metal layer 71 may be a film layer where the gate of the LTPS transistor is located, and the second metal layer 72 may be a film layer where one plate of the capacitor is located. The third metal layer 73 may be a film layer where the gate of the IGZO transistor is located.

[0112] Specifically, the thickness of the fourth insulating layer 84 and the fifth insulating layer 85 on both sides of the fifth metal layer 75 is greater than the thickness of the metal layers on both sides of other metal layers. The first winding portion 41 is arranged on the fifth metal layer 75. The capacitance on the first winding portion 41 can be minimized, and the load of the first scanning line of the first display area and the first winding portion 41 can be reduced. The load difference between the first scanning line of the first display area and the normal display area is minimized, thereby minimizing the brightness difference and improving the display uniformity of the display panel.

[0113] Based on the above embodiment, optionally, refer to Figure 3 , Figure 4 and Figure 6The display area also includes a first power line ELVDD and an initialization signal line, the first power line ELVDD is located at the fourth metal layer 74 and the sixth metal layer 76, and the initialization signal line is located at the fourth metal layer 74; the second scan line S2, the fourth scan line S4 and the light-emitting control line EM are located at the first metal layer 71; the first scan line S1 is located at the third metal layer 73 and the second metal layer 72; the third scan line S3 is located at the third metal layer 73 and the second metal layer 72; the first data line D1, the second data line D2 and the third data line D3 are all located at the fifth metal layer 75.

[0114] The initialization signal line is used to transmit the first initialization signal VREFN1, the second initialization signal VREFN2 and the third initialization signal VREFP1. The compensation module 31 and the first initialization module 35 both include transistors, and the transistors included in the compensation module 31 and the first initialization module 35 are IGZO transistors. The IGZO transistors adopt a dual-gate structure, the first gate is located in the second metal layer 72, and the second gate is located in the third metal layer 73. The corresponding first scan line S1 and the third scan line S3 both include two sub-scan lines, one sub-scan line is located in the second metal layer 72 and is electrically connected to the first gate, and the other sub-scan line is located in the third metal layer 73 and is electrically connected to the second gate.

[0115] The first power line ELVDD, the initialization signal line, the first scan line S1, the second scan line S2, the third scan line S3, the fourth scan line S4, the light-emitting control line EM, the first data line D1, the second data line D2 and the third data line D3 are distributed in the first metal layer 71-sixth metal layer 76, the first winding part 41-fourth winding part 44, the first data line winding part 461-third data line winding part 463 and the light-emitting control winding part 45 are also distributed in the first metal layer 71-sixth metal layer 76, and the structures located in the same metal layer can be made of the same material and prepared in the same process. In this embodiment, the film layer distribution of each winding part in the first non-display area 32 is changed without increasing the number of film layers and processes of the display panel, so as to reduce the capacitance of each winding part, thereby reducing the load of the scan line, data line and light-emitting control line respectively connected to each winding part, reducing the display difference between the display area around the hole area 20 and the normal display area, and improving the display uniformity.

[0116] Figure 7 is a partial enlarged view of another display panel provided by an embodiment of the present invention. Based on the above embodiment, optionally, refer to Figure 7The first display area 11 includes a plurality of pixel row groups 60 arranged in sequence along the second direction Y, each pixel row group 60 includes at least two sub-pixel rows 50 adjacent to each other along the second direction Y, and each sub-pixel row 50 includes a plurality of sub-pixels 30 arranged in sequence along the first direction X; the first scanning line S1 connected to each sub-pixel row 50 in each pixel row group 60 is electrically connected to the same first winding portion 41, and different pixel row groups 60 are connected to different first winding portions 41.

[0117] Specifically, two or more sub-pixel rows 50 in the same layer of the display panel are driven to emit light at the same time, that is, the driving timing of the two or more sub-pixel rows 50 is the same, and at least two sub-pixel rows 50 included in each pixel row group 60 can be sub-pixel rows 50 with the same driving timing. By setting the first scan line S1 connected to each sub-pixel row 50 in each pixel row group 60 to be electrically connected to the same first winding portion 41, different pixel row groups 60 are connected to different first winding portions 41, and the number of first winding portions 41 in the first non-display area 22 can be reduced without affecting the driving timing of the sub-pixel rows 50 and without changing other circuits, so that each winding portion can have a larger wiring space, further reducing the capacitance of each winding portion, and improving display uniformity.

[0118] Based on the above embodiment, optionally, the second scan lines S2 connected to each sub-pixel row 50 in each pixel row group 60 are electrically connected to the same second winding portion 42 , and different pixel row groups 60 are connected to different second winding portions 42 .

[0119] With this arrangement, the number of second winding portions 42 in the first non-display area 22 can be reduced without affecting the driving timing of the sub-pixel row 50 and without changing other circuits, so that each winding portion can have a larger wiring space, further reducing the capacitance of each winding portion and improving display uniformity.

[0120] On the basis of the above embodiment, optionally, the light emitting control lines EM connected to each sub-pixel row 50 in each pixel row group 60 are electrically connected to the same light emitting control line portion 45 , and different pixel row groups 60 are connected to different light emitting control winding portions 45 .

[0121] With this arrangement, the number of light-emitting control line portions 45 in the first non-display area 22 can be reduced without affecting the driving timing of the sub-pixel row 50 and without changing other circuits, so that each winding portion can have a larger wiring space, further reducing the capacitance of each winding portion and improving display uniformity.

[0122] On the basis of the above embodiment, optionally, the third scan lines S3 connected to each sub-pixel row 50 in each pixel row group 60 are electrically connected to the same third winding portion 43 , and different pixel row groups 60 are connected to different third winding portions 43 .

[0123] With this arrangement, the number of third winding parts 43 in the first non-display area 22 can be reduced without affecting the driving timing of the sub-pixel row 50 and without changing other circuits, so that each winding part can have a larger wiring space, further reducing the capacitance of each winding part and improving display uniformity.

[0124] Based on the above embodiment, optionally, the fourth scan lines S4 connected to the sub-pixel rows 50 in each pixel row group 60 are electrically connected to the same fourth winding portion 44 , and different pixel row groups 60 are connected to different fourth winding portions 44 .

[0125] With this arrangement, the number of fourth winding parts 44 in the first non-display area 22 can be reduced without affecting the driving timing of the sub-pixel row 50 and without changing other circuits, so that each winding part can have a larger wiring space, further reducing the capacitance of each winding part and improving display uniformity.

[0126] Based on the above embodiment, optionally, each pixel row group 60 includes two sub-pixel rows 50 .

[0127] On the basis of the above embodiment, optionally, the first winding portion 41 and the second winding portion 42 connected to the same pixel row group 60 do not overlap. That is, the vertical projections of the first winding portion 41 and the second winding portion 42 connected to the same pixel row group 60 on the substrate do not overlap. This arrangement can prevent the voltage jump on the second winding portion 42 from affecting the capacitance of the first winding portion 41, avoid affecting the load of the first scan line S1, avoid affecting the data signal written to the driving module, further reduce the brightness difference between the first display area and the normal display area, and improve display uniformity.

[0128] Figure 8 is a partial enlarged view of another display panel provided by an embodiment of the present invention. Based on the above embodiment, optionally, refer to Figure 8 , the second winding portion 42 connected to each pixel row group 60 at least partially overlaps with the first winding portion 41 connected to the next pixel row group 60 of the pixel row group 60; wherein the next pixel row group 60 of the pixel row group 60 is a pixel row group 60 adjacent to the pixel row group 60 and lit up after the pixel row group 60 is lit up. That is, the vertical projection of the second winding portion 42 connected to each pixel row group 60 on the substrate at least partially overlaps with the vertical projection of the first winding portion 41 connected to the next pixel row group 60 of the pixel row group 60 on the substrate.

[0129] Specifically, refer to Figure 8 , Figure 8Two pixel row groups 60 are shown in the figure. The driving timing of the first pixel row group 61 is earlier than that of the second pixel row group 62, that is, the second pixel row group 62 is lit after the first pixel row group 61. Since the first pixel row group 61 is lit first, the scan driving circuit first transmits the second scan signal to the second scan line S2 and the second winding portion 42 of the first pixel row group 61. After the transmission is completed, the first scan signal is transmitted to the first scan line S1 and the first winding portion 41 of the second pixel row group 62. When the first winding portion 41 of the second pixel row group 62 transmits the signal, the second winding portion 42 of the first pixel row group 61 will not have a voltage change, and will not affect the capacitance on the first winding portion 41 of the second pixel row group 62. Therefore, by arranging the second winding portion 42 connected to each pixel row group 60 to at least partially overlap with the first winding portion 41 connected to the next pixel row group 60 of the pixel row group 60, the area occupied by the first winding portion 41 and the second winding portion 42 in the first non-display area 22 can be reduced without affecting the capacitance of the first winding portion 41, thereby further increasing the wiring space in the first non-display area 22, reducing the capacitance between the winding portions, and improving display uniformity.

[0130] Based on the above embodiment, optionally, refer to Figure 4 The driving module 32 includes a driving transistor T0, the compensation module 31 includes a first transistor T1; the data writing module 33 includes a second transistor T2; the light emitting control module 34 includes a third transistor T3 and a fourth transistor T4; the first initialization module 35 includes a fifth transistor T5; the second initialization module 36 includes a sixth transistor T6; and the third initialization module 37 includes a seventh transistor T7. The pixel driving circuit also includes a storage capacitor Cst.

[0131] Based on the above embodiments, Figure 1 Optionally, hole 21 is used to set an optical sensor.

[0132] Based on the above embodiment, optionally, the optical sensor includes a camera.

[0133] On the basis of the above embodiment, optionally, the display area 10 includes a first edge 101 and a second edge 102 arranged opposite to each other along the first direction X, and the hole area 20 is at the same or different distances from the first edge 101 and the second edge 102 .

[0134] Specifically, when the distances between the hole area 20 and the first edge 101 and the second edge 102 are different, the hole 21 is a biased hole, the widths of the first display areas 11 on both sides of the hole area 20 along the first direction X are different, and the loads of the scanning lines and the light-emitting control lines of the first display areas 11 on both sides of the hole area 20 are different. The first display areas 11 on both sides of the hole area 20 are more prone to display brightness deviation. The solution of this embodiment can improve display unevenness.

[0135] An embodiment of the present invention further provides a display device, Fig. 9 is a schematic diagram of a display device provided by an embodiment of the present invention, with reference to Fig. 9 The display device 100 includes the display panel 200 described in any embodiment of the present invention. The display device 100 may be an electronic device such as a mobile phone, a tablet, and a computer. The display device 100 may be a foldable display device or a non-foldable display device.

[0136] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0137] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A display panel, characterized in that: include: A hole area and a display area; the display area includes a first display area; the first display area is arranged adjacent to the hole area along a first direction; the hole area includes a hole and a first non-display area surrounding the hole; The first display area includes a plurality of sub-pixels, each of the sub-pixels includes a pixel driving circuit and a light-emitting unit, the pixel driving circuit includes a compensation module and a driving module; the driving module is used to drive the light-emitting unit to emit light, and the compensation module is used to perform threshold compensation on the driving module; The first display area includes a first scan line, the control end of the compensation module is electrically connected to the first scan line, and the first scan line extends along the first direction; the first non-display area includes a first winding portion, the first winding portion extends from one side of the hole to the other side of the hole along the first direction, and the first winding portion is electrically connected to the first scan line; The thickness of at least one of the two insulating layers adjacent to the film layer where the first winding portion is located is greater than a set value.

2. The display panel according to claim 1, characterized in that: The set value is greater than or equal to 1.6 mil; Preferably, the first display area includes a first sub-display area and a second sub-display area, and the first sub-display area and the second sub-display area are located on both sides of the hole area along the first direction; Two ends of the first winding portion are electrically connected to the first scan line of the first sub-display area and the first scan line of the second sub-display area, respectively.

3. The display panel according to claim 1, wherein: The pixel driving circuit further includes a data writing module, the data writing module is used to write a data voltage to the control end of the driving module, the first display area further includes a second scanning line, the control end of the data writing module is electrically connected to the second scanning line; The first non-display area further includes a second winding portion, the second winding portion extends from one side of the hole to the other side of the hole along the first direction, and the second winding portion is electrically connected to the second scanning line; Preferably, the second winding portion includes a first sub-wire and a second sub-wire connected in parallel with each other, and the first sub-wire and the second sub-wire are arranged in different film layers; Preferably, the first sub-wire and the second sub-wire are both in different layers from the first winding portion; Preferably, the pixel driving circuit further includes a light emitting control module, and the first display area further includes a light emitting control line; the control end of the light emitting control module is electrically connected to the light emitting control line, and the light emitting control module is used to control the light emitting unit to emit light according to the driving current output by the driving module according to the signal on the light emitting control signal line; The first non-display area further includes a light-emitting control winding portion, the light-emitting control winding portion extends from one side of the hole to the other side of the hole along a first direction, the light-emitting control winding portion is electrically connected to the light-emitting control line; the light-emitting control winding portion and the first winding portion are arranged in the same layer; Preferably, the pixel driving circuit further includes a first initialization module, the first initialization module is used to initialize the control end of the driving module; the first display area further includes a third scanning line, the control end of the first initialization module is electrically connected to the third scanning line; the first non-display area further includes a third winding portion, the third winding portion extends from one side of the hole to the other side of the hole along the first direction, the third winding portion is electrically connected to the third scanning line; the third winding portion, the second winding portion and the first winding portion are all in different layers; Preferably, the pixel driving circuit further includes a second initialization module, the second initialization module is used to initialize the first pole of the light-emitting unit, the first display area further includes a fourth scanning line, and the control end of the second initialization module is electrically connected to the fourth scanning line; the first non-display area further includes a fourth winding portion, the fourth winding portion extends from one side of the hole to the other side of the hole along the first direction, the fourth winding portion is electrically connected to the fourth scanning line, and the fourth winding portion and the third winding portion are arranged on the same layer; Preferably, the pixel driving circuit further includes a third initialization module, the third initialization module is used to initialize the first end of the driving module, the control end of the third initialization module is electrically connected to the fourth scanning line, wherein the first end of the driving module is electrically connected to the light-emitting unit.

4. The display panel according to claim 3, characterized in that: The display area further includes a second display area and a third display area, and the second display area and the third display area are arranged on both sides of the hole area along the second direction; The second display area and the third display area both include data lines, and the data lines extend along a second direction, wherein the second direction intersects with the first direction; The first non-display area further includes a data line winding portion, the data line winding portion extends from one side of the hole to the other side of the hole along the second direction, and two ends of the data line winding portion are electrically connected to the data lines of the second display area and the third display area respectively; Preferably, the data line winding portion and the first winding portion, the second winding portion, the third winding portion, the fourth winding portion and the light emitting control winding portion are all in different layers; Preferably, the sub-pixel includes a first color sub-pixel, a second color sub-pixel and a third color sub-pixel, the data line connected to the first color sub-pixel is a first data line, the data line connected to the third color sub-pixel is a third data line, and the data line connected to the second color sub-pixel is a second data line; The data line winding portion includes a first data line winding portion, a second data line winding portion and a third data line winding portion; the first data line winding portion is electrically connected to the first data line, the second data line winding portion is electrically connected to the second data line, the third data line winding portion is electrically connected to the third data line, the third data line winding portion and the first data line winding portion are arranged on the same layer, and the third data line winding portion and the second data line winding portion are on a different layer.

5. The display panel according to claim 3 or 4, characterized in that: The display panel comprises a plurality of metal layers, an insulating layer is arranged between every two adjacent metal layers, and the thickness of the insulating layer adjacent to the metal layer where the first winding portion is located is greater than the thickness of other insulating layers; Preferably, the display panel comprises a substrate, a first metal layer, a first insulating layer, a second metal layer, a second insulating layer, a third metal layer, a third insulating layer, a fourth metal layer, a fourth insulating layer, a fifth metal layer, a fifth insulating layer and a sixth metal layer which are stacked in sequence; The first winding portion is located in the fifth metal layer, the first sub-wire is located in the second metal layer, the second sub-wire is located in the third metal layer, and the third winding portion and the fourth winding portion are arranged in the first metal layer; the thickness of the first insulating layer, the second insulating layer and the third insulating layer are all smaller than the thickness of the fourth insulating layer and the fifth insulating layer; Preferably, the third data line winding portion and the first data line winding portion are located in the fourth metal layer, and the second data line winding portion is located in the sixth metal layer; Preferably, the display area also includes a first power line and an initialization signal line, the first power line is located at the fourth metal layer and the sixth metal layer, and the initialization signal line is located at the fourth metal layer; the second scan line, the fourth scan line and the light-emitting control line are located at the first metal layer; the first scan line is located at the third metal layer and the second metal layer; the third scan line is located at the third metal layer and the second metal layer; the first data line, the second data line and the third data line are all located at the fifth metal layer.

6. The display panel according to claim 3, characterized in that: The first display area includes a plurality of pixel row groups sequentially arranged along a second direction, each pixel row group includes at least two sub-pixel rows adjacent to each other along the second direction, and each sub-pixel row includes a plurality of sub-pixels sequentially arranged along the first direction; wherein the second direction intersects with the first direction; The first scanning lines connected to the sub-pixel rows in each pixel row group are electrically connected to the same first winding portion, and different pixel row groups are connected to different first winding portions; Preferably, the second scanning lines connected to each sub-pixel row in each pixel row group are electrically connected to the same second winding portion, and different pixel row groups are connected to different second winding portions; Preferably, the light emitting control lines connected to the sub-pixel rows in each pixel row group are electrically connected to the same light emitting control line portion, and the light emitting control winding portions connected to different pixel row groups are different; Preferably, the third scanning lines connected to each sub-pixel row in each pixel row group are electrically connected to the same third winding portion, and different pixel row groups are connected to different third winding portions; Preferably, the fourth scanning lines connected to the sub-pixel rows in each pixel row group are electrically connected to the same fourth winding portion, and different pixel row groups are connected to different fourth winding portions; Preferably, each pixel row group includes two sub-pixel rows.

7. The display panel according to claim 6, characterized in that: The first winding portion and the second winding portion connected to the same pixel row group do not overlap; Preferably, the second winding portion connected to each pixel row group at least partially overlaps with the first winding portion connected to the next pixel row group of the pixel row group; wherein the next pixel row group of the pixel row group is a pixel row group adjacent to the pixel row group and is lit after the pixel row group is lit.

8. The display panel according to claim 3, characterized in that: The driving module includes a driving transistor, the compensation module includes a first transistor; the data writing module includes a second transistor; the light emitting control module includes a third transistor and a fourth transistor; the first initialization module includes a fifth transistor; the second initialization module includes a sixth transistor; and the third initialization module includes a seventh transistor.

9. The display panel according to claim 1, characterized in that: The hole is used to set the optical sensor; Preferably, the optical sensor includes a camera; Preferably, the display area comprises a first edge and a second edge arranged opposite to each other along a first direction, and the hole area is at the same or different distances from the first edge and the second edge.

10. A display device, characterized in that: A display panel comprising any one of claims 1 to 9.

Images