Display panel and display device

Abstract

The invention discloses a display panel and a display device, and the display panel comprises a substrate which comprises a display area and a first hole area; the size of the first hole area in the first direction is larger than that in the second direction, and the first direction and the second direction intersect with each other; the display area surrounds the first hole area; the first hole area comprises a first winding area, a transition area and at least two first transparent areas, the first winding area surrounds the transition area, and the transition area surrounds the first transparent areas; the at least two first transparent areas are sequentially arranged in the first direction; the first winding area is provided with a plurality of leads, and the leads are electrically connected with leads in the display area; the transition area comprises a light-transmitting supporting structure which is arranged on one side of the substrate. The display panel further comprises a cover plate, the cover plate is arranged on the side, away from the substrate, of the light-transmitting supporting structure, and the cover plate covers the display area and the first hole area. According to the invention, Newton rings are prevented from appearing in the first hole area, and the display effect is improved.

Description

Technical Field

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

[0002] With the development of display technology, display panels are increasingly widely used. The display area of ​​existing display panels is usually provided with a hole area, and the hole area is used to set an optical sensor. The hole area of ​​existing display panels is prone to Newton rings, 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 avoid the occurrence of Newton rings and improve the display effect.

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

[0005] The substrate comprises a display area and a first hole area; the size of the first hole area along a first direction is larger than the size along a second direction, and the first direction and the second direction intersect each other; the display area surrounds the first hole area; the first hole area comprises a first winding area, a transition area and at least two first transparent areas, the first winding area surrounds the transition area, and the transition area surrounds the first transparent area; the at least two first transparent areas are arranged in sequence along the first direction; the first winding area is provided with a plurality of leads, and the leads are electrically connected to the leads in the display area;

[0006] The transition zone includes a light-transmitting support structure, which is arranged on one side of the substrate;

[0007] The display panel also includes a cover plate, which is arranged on a side of the light-transmitting support structure away from the substrate, and covers the display area and the first hole area.

[0008] Furthermore, the display panel further comprises a support column layer, which is arranged between the substrate and the cover plate; the support column layer extends from the display area through the first winding area to the transition area; the light-transmitting support structure comprises the support column layer;

[0009] The height difference between the support column layer in the first hole area and the surface of the substrate away from the support column layer in the display area and the surface of the substrate away from the support column layer in the first hole area is less than or equal to a first preset value;

[0010] Optionally, a height difference between a surface of the support column layer in the first winding area away from the substrate and a surface of the support column layer in the transition area away from the substrate is less than or equal to a second preset value;

[0011] Optionally, the height difference between the support column layer in the first winding area away from the surface of the substrate and the support column layer in the transition area away from the surface of the substrate is zero;

[0012] Optionally, a height difference between a surface of the support column layer in the first hole region away from the substrate and a surface of the support column layer in the display region away from the substrate is zero;

[0013] Optionally, the light-transmitting support structure is also arranged in the first transparent area;

[0014] Optionally, the support column layer extends from the display area to the first winding area, the transition area and the first transparent area.

[0015] Furthermore, the first winding area includes at least one first metal layer and at least one first insulating layer; the first metal layer and the first insulating layer are arranged between the substrate and the cover plate;

[0016] The side of the support column layer in the transition region close to the substrate further includes a first insulating layer or a first metal layer and the first insulating layer; when the transition region includes the first metal layer, the first metal layer in the transition region includes a plurality of first hollow regions;

[0017] Optionally, at least one first metal layer and at least one first insulating layer both extend from the first winding region to the transition region;

[0018] Optionally, the first insulating layer extends from the first winding area to the transition area and the first transparent area;

[0019] Optionally, the first insulating layer includes a first inorganic layer;

[0020] Optionally, the first insulating layer includes a first organic layer;

[0021] Optionally, the light-transmitting support structure includes a plurality of sub-support structures, and a vertical projection of the sub-support structure on the first metal layer does not overlap with the first hollow area;

[0022] Optionally, in the transition region or in the transition region and the first transparent region, the first organic layer includes a plurality of second hollow regions, the vertical projections of the first hollow regions and the second hollow regions on the substrate overlap, and the vertical projection of the sub-support structure on the first organic layer does not overlap with the second hollow regions;

[0023] Optionally, vertical projections of the first hollow area and the second hollow area on the substrate overlap;

[0024] Optionally, in the transition region, vertical projections of the light-transmitting support structure, the first organic layer and the first metal layer on the substrate overlap.

[0025] Furthermore, the display area includes a plurality of array metal layers and a plurality of second insulating layers; the array metal layers and the second insulating layers are arranged between the substrate and the light-transmitting support structure;

[0026] Each first metal layer is disposed on the same layer as an array metal layer, and each first insulating layer is disposed on the same layer as a second insulating layer;

[0027] Optionally, the multiple array metal layers all extend from the display area to the first winding area and the transition area, the multiple second insulating layers all extend from the display area to the first winding area and the transition area, at least one array metal layer is reused as the first metal layer, and at least one second insulating layer is reused as the first insulating layer;

[0028] Optionally, the second insulating layer includes an inorganic insulating layer and an organic insulating layer;

[0029] Optionally, the organic insulating layer includes a planarization layer and a pixel defining layer;

[0030] Optionally, the multiple second insulating layers extend from the display area to the winding area, the transition area and the first transparent area.

[0031] Furthermore, the display panel further includes:

[0032] An ink layer, the ink layer is disposed between the light-transmitting support structure and the cover plate, and the ink layer covers the first hole area;

[0033] Optionally, the display panel further includes a polarizer layer, which is disposed between the light-transmitting support structure and the cover plate, and covers the first winding area;

[0034] Optionally, the display panel further includes a touch metal layer, which is disposed between the light-transmitting support structure and the cover plate, and the touch metal layer extends from the display area to the first winding area.

[0035] Furthermore, the substrate further comprises a second hole area; the display area surrounds the second hole area, the second hole area comprises a second winding area and a second transparent area, the second winding area surrounds the second transparent area; the second winding area is provided with a plurality of leads, and the leads are electrically connected to the leads in the display area;

[0036] The display panel also includes:

[0037] A shielding layer, which is disposed between the light-transmitting support structure and the cover plate, and covers the second winding area;

[0038] Preferably, the second transparent area does not include a metal film layer, an organic film layer and an inorganic film layer.

[0039] Further, the shielding layer includes at least one of an ink layer and a polarizer layer;

[0040] Optionally, the display panel further includes a touch metal layer, which is disposed between the shielding layer and the substrate, and the touch metal layer extends from the display area to the second winding area.

[0041] Furthermore, the second winding area includes a support column layer, at least one second metal layer and at least one third insulating layer; the support column layer, the second metal layer and the third insulating layer are arranged between the substrate and the shielding layer;

[0042] Optionally, the third insulating layer includes at least one of a third inorganic layer and a third organic layer;

[0043] Optionally, the support column layer includes a plurality of support columns, and the plurality of support columns are arranged at intervals;

[0044] Optionally, the display area includes multiple array metal layers and multiple second insulating layers; each second metal layer is disposed on the same layer as an array metal layer, and each third insulating layer is disposed on the same layer as a second insulating layer;

[0045] Optionally, multiple layers of array metal layers extend from the display area to the second winding area, multiple layers of second insulating layers extend from the display area to the second winding area, at least one layer of array metal layers is reused as the second metal layer, and at least one layer of second insulating layer is reused as the third insulating layer.

[0046] Further, the first hole area is used to set the first optical sensor, and the second hole area is used to set the second optical sensor;

[0047] Optionally, the first optical sensor includes an infrared sensor, and the second optical sensor includes a camera;

[0048] Optionally, the first hole region includes an elliptical hole region, and the second hole region includes a circular hole region.

[0049] According to another aspect of the present invention, a display device is provided. The display device includes the display panel described in any of the above embodiments.

[0050] The display panel provided by the embodiment of the present invention, by setting the first hole area to include a first winding area, a transition area and at least two first transparent areas, and a light-transmitting support structure is set in the transition area, so that both the first transparent area and the transition area can be light-transmitting, thereby ensuring that the first hole area has a large light-transmitting area. At the same time, the setting of the light-transmitting support structure can reduce the height difference of the film layer between the first hole area and the display area, so that other film layers such as the cover plate in the first hole area can be better supported, avoiding slight depression in the first hole area, thereby avoiding the appearance of Newton rings in the first hole area, and improving the display effect of the display panel.

[0051] 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

[0052] 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.

[0053] Figure 1 is a schematic structural diagram of a display panel provided according to an embodiment of the present invention;

[0054] Figure 2 yes Figure 1 A schematic diagram of a cross-sectional structure along the A-A' direction;

[0055] Figure 3 yes Figure 1 Another schematic diagram of the cross-sectional structure along the A-A' direction;

[0056] Figure 4 yes Figure 1 Another schematic diagram of a cross-sectional structure along the A-A' direction;

[0057] Figure 5 yes Figure 1 Another schematic diagram of a cross-sectional structure along the AA' direction;

[0058] Figure 6 yes Figure 1 Another schematic diagram of the cross-sectional structure along the A-A' direction;

[0059] Figure 7 yes Figure 1 Another schematic diagram of a cross-sectional structure along the A-A' direction;

[0060] Figure 8 yes Figure 1 Another schematic diagram of a cross-sectional structure along the AA' direction;

[0061] Fig. 9 is a schematic structural diagram of a display panel provided according to an embodiment of the present invention;

[0062] Fig.10 yes Fig. 9 Schematic diagram of a cross-sectional structure along the BB' direction. DETAILED DESCRIPTION

[0063] 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.

[0064] 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 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 clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0065] As mentioned in the background technology, the hole area of ​​the existing display panel is prone to Newton rings, which affects the display effect of the display panel. The inventors have found through research that the reason for this problem is that the infrared irradiation hole area of ​​the display panel is large, and the central area of ​​the infrared irradiation hole area will produce a slight depression. When light is irradiated, the infrared irradiation hole area will produce a thin film interference phenomenon, which leads to the appearance of Newton rings.

[0066] Based on the above problems, an embodiment of the present invention provides a display panel. Figure 1 is a schematic structural diagram of a display panel provided according to an embodiment of the present invention, Figure 2 yes Figure 1 A schematic diagram of a cross-sectional structure along the A-A' direction, refer to Figure 1 and Figure 2 , the display panel includes:

[0067] Substrate 1, substrate 1 includes a display area 01 and a first hole area 02; the size of the first hole area 01 along a first direction X is greater than the size along a second direction Y, and the first direction X and the second direction Y intersect each other; the display area 01 surrounds the first hole area 02; the first hole area 02 includes a first winding area 021, a transition area 022 and at least two first transparent areas 023, the first winding area 021 surrounds the transition area 022, and the transition area 022 surrounds the first transparent area 023; at least two first transparent areas 023 are arranged in sequence along the first direction X; the first winding area 021 is provided with a plurality of leads, and the leads are electrically connected to the leads in the display area 01;

[0068] The transition area 022 includes a light-transmitting support structure 20, and the light-transmitting support structure 20 is disposed on one side of the substrate 1;

[0069] The display panel further includes a cover plate 30 , which is disposed on a side of the light-transmitting support structure 20 away from the substrate 1 , and covers the display area 01 and the first hole area 02 .

[0070] Among them, the display area 01 is used to display the picture. The first hole area 02 is used to set an optical sensor, and the optical sensor can be exemplarily an infrared sensor, which is used to emit an optical detection signal along the direction of the support column layer 2 away from the substrate 1. The first direction X and the second direction Y can be set to be perpendicular to each other, or the first direction X and the second direction Y can be set not to be perpendicular to each other. The leads in the first winding area 021 are connected to the multiple leads in the display area 01. Exemplarily, the leads can include one, two or more of the scanning lines, data lines, light-emitting control lines, power lines and initialization signal lines. At least two can be understood as two or more. Exemplarily, the first hole area 02 can include two first transparent areas 023, and the transition area 022 is arranged around the two first transparent areas 023. The first hole area 02 can include three first transparent areas 023, and the transition area 022 is arranged around the three first transparent areas 023. The embodiment of the present invention does not limit this.

[0071] The light-transmitting support structure 20 may be made of light-transmitting material or non-light-transmitting material. When the light-transmitting support structure 20 is made of non-light-transmitting material, the light-transmitting support structure 20 may include a hollow area, and the hollow area is used for light transmission. When the light-transmitting support structure 20 is made of light-transmitting material, a hollow area may also be provided to increase the light transmittance. The light-transmitting support structure 20 is used to support the cover plate 30 and the film layer between the cover plate 30 and the light-transmitting support column layer 20. By providing the light-transmitting support structure 20, the height difference between the film layer of the first hole area 02 and the display area 01 is reduced, so that the cover plate 30 and other film layers in the first hole area 02 can be better supported, avoiding slight depression in the first hole area 02, thereby avoiding the appearance of Newton rings in the first hole area 02, and improving the display effect of the display panel.

[0072] The display panel provided by the embodiment of the present invention, by setting the first hole area 02 to include a first winding area 021, a transition area 022 and at least two first transparent areas 023, and a light-transmitting support structure 20 is set in the transition area 022, so that the first transparent area 023 and the transition area 022 can both be light-transmitting, thereby ensuring that the first hole area 02 has a large light-transmitting area. At the same time, the setting of the light-transmitting support structure 20 can reduce the height difference of the film layer between the first hole area 02 and the display area 01, so that other film layers such as the cover plate 30 in the first hole area 02 can be better supported, avoiding slight depression of the first hole area 02, thereby avoiding the appearance of Newton rings in the first hole area 02, and improving the display effect of the display panel.

[0073] Figure 3 yes Figure 1 Another cross-sectional structure diagram along the A-A' direction, refer to Figure 1-Figure 3 On the basis of the above embodiment, optionally, the display panel also includes a support column layer 2, which is arranged between the substrate 1 and the cover plate 30; the support column layer 2 extends from the display area 01 through the first winding area 021 to the transition area 022; the light-transmitting support structure 20 includes the support column layer 2.

[0074] Specifically, the display area 01 further includes a plurality of light-emitting units, the light-emitting units include a plurality of organic layers, and the support column layer 2 may include a plurality of support columns 21 , and the support columns 21 are used to support the mask used in the process of evaporating the organic layer.

[0075] By arranging the support column layer 2 to extend from the display area 01 through the first winding area 021 to the transition area 022 , the light-transmitting support structure 20 includes the support column layer 2 , and there is no need to increase the process steps for manufacturing the light-transmitting support structure 20 , thereby reducing the process cost.

[0076] Continue to refer Figure 1 and Figure 3 On the basis of the above embodiment, optionally, the height difference between the support column layer 2 of the first hole area 02 away from the surface of the substrate 1 and the support column layer 2 of the display area 01 away from the surface of the substrate 1 is less than or equal to a first preset value.

[0077] Specifically, the height difference between the surface of the support column layer 2 of the first hole area 02 away from the substrate 1 and the surface of the support column layer 2 of the display area 01 away from the substrate 1 is set to be less than or equal to the first preset value, which reduces the height difference between the support height of the first hole area 02 and the support height of the display area 01, thereby avoiding the first hole area 02 from being depressed, thereby avoiding the appearance of Newton rings in the first hole area 02. For example, the surface of the support column layer 2 of the first winding area 021 in the first hole area 02 away from the substrate 1 and the surface of the support column layer 2 of the transition area 022 away from the substrate 1 can be set to be on the same horizontal plane; the surface of the support column layer 2 of the first winding area 021 in the first hole area 02 away from the substrate 1 and the surface of the support column layer 2 of the transition area 022 away from the substrate 1 can also be set to be not on the same horizontal plane. The first preset value can be set according to actual conditions.

[0078] Optionally, a height difference between a surface of the support column layer 2 in the first winding area 021 away from the substrate 1 and a surface of the support column layer 2 in the transition area 022 away from the substrate 1 is less than or equal to a second preset value.

[0079] Specifically, the height difference between the surface of the support column layer 2 of the first winding area 021 away from the substrate 1 and the surface of the support column layer 2 of the transition area 022 away from the substrate 1 is set to be less than or equal to the second preset value, which reduces the height difference between the support height of the first winding area 021 and the support height of the transition area 022, making the surface of the first hole area 02 away from the substrate smoother, further avoiding the first hole area 02 from being concave, and thus avoiding the appearance of Newton rings in the first hole area 02. The second preset value can be set according to actual conditions.

[0080] Optionally, the height difference between the support column layer 2 in the first winding area 021 and the surface of the substrate 1 away from the support column layer 2 in the transition area 022 and the surface of the substrate 1 away from is zero.

[0081] Specifically, the height difference between the surface of the support column layer 2 in the first winding area 021 away from the substrate 1 and the surface of the support column layer 2 in the transition area 022 away from the substrate 1 is zero, so that the surface of the first hole area 02 away from the substrate 1 is smoother, further avoiding the generation of depressions in the first hole area 02, thereby avoiding the appearance of Newton rings in the first hole area 02.

[0082] Optionally, the height difference between the support column layer 2 in the first hole area 02 and the surface of the substrate 1 away from the support column layer 2 in the display area 01 and the surface of the substrate 1 away from is zero.

[0083] Specifically, the height difference between the surface of the support column layer 2 of the first hole area 02 away from the substrate 1 and the surface of the support column layer 2 of the display area 01 away from the substrate 1 is zero, so that the surface of the display panel away from the substrate is smoother, further avoiding the occurrence of depressions in the first hole area 02, thereby further avoiding the occurrence of Newton rings in the first hole area 02.

[0084] Optional, Figure 4 yes Figure 1 Another schematic diagram of a cross-sectional structure along the A-A' direction, refer to Figure 4 The light-transmitting support structure 20 is also arranged in the first transparent area 023 .

[0085] With this arrangement, the light-transmitting support structure 20 can provide better support for the cover plate 30 and other film layers of the first transparent area 023 , further avoiding the first hole area 02 from being sunken, thereby further avoiding the appearance of Newton rings in the first hole area 02 .

[0086] Optional, Figure 5 yes Figure 1 Another cross-sectional structure diagram along the A-A' direction, refer to Figure 5 The support column layer 2 extends from the display area 01 to the first winding area 021 , the transition area 022 and the first transparent area 023 .

[0087] Specifically, the support column layer 2 is arranged to extend from the display area 01 to the first winding area 021, the transition area 022 and the first transparent area 023, so that the support area of ​​the support column layer 2 in the first hole area 02 is larger, thereby avoiding the first hole area 02 from being depressed and further avoiding the appearance of Newton rings in the first hole area 02.

[0088] For further reference, Figure 2-Figure 5 The first winding area 021 includes at least one first metal layer 3 and at least one first insulating layer 4; the first metal layer 3 and the first insulating layer 4 are disposed between the substrate 1 and the cover plate 30;

[0089] The side of the support column layer 2 of the transition zone 022 close to the substrate 1 also includes a first insulating layer 4 or a first metal layer 3 and a first insulating layer 4; when the transition zone 022 includes the first metal layer 3, the first metal layer 3 of the transition zone 022 includes multiple first hollow areas 31.

[0090] Among them, at least one layer can be understood as one layer or more than one layer. For example, the first winding area 021 may include a first metal layer 3 and a first insulating layer 4, or may include more than one first metal layer 3 and more than one first insulating layer 4, and the embodiment of the present invention is not limited to this; the transition area 022 may include only at least one first insulating layer 4, or may include at least one first metal layer 3 and at least one first insulating layer 4 at the same time.

[0091] Specifically, by setting the transition zone 022 to include at least one of the first insulating layer 4 or the first insulating layer 4 and the first metal layer 3, the height difference of the film layers between the display area 01 and the first hole area 02 can be further reduced, and the first hole area 02 can be further prevented from being depressed, and the first hole area 02 can be further prevented from having Newton rings. And when the transition zone 022 includes the first metal layer 3, by setting a plurality of first hollow areas 31 in the first metal layer 3 of the transition zone 022, it can be ensured that the transition zone 022 has a high light transmittance, so that both the first transparent area and the transition zone can be light-transmissive, and the first hole area 02 has a large light-transmitting area, thereby increasing the signal emission area of ​​the optical detection signal. Among them, the plurality of first hollow areas 31 can be understood as two or more hollow areas 31.

[0092] Optionally, at least one first metal layer 3 and at least one first insulating layer 4 both extend from the first winding region 021 to the transition region 022 .

[0093] Specifically, the first metal layer 3 and the first insulating layer 4 are extended from the first winding area 021 to the transition area 022, which can further reduce the film layer height difference between the display area 01 and the first hole area 02, further avoid the first hole area 02 from being depressed, and further avoid the first hole area 02 from having Newton rings.

[0094] Optionally, the first insulating layer 4 extends from the first winding area 021 to the transition area 022 and the first transparent area 023 .

[0095] This arrangement can increase the height of the transparent support structure 20 in the first transparent area 023, so that the transparent support structure 20 can better support the film layer such as the cover plate 30, further avoiding the first hole area 02 from being sunken and further avoiding the first hole area 02 from having Newton rings.

[0096] Optionally, the first insulating layer 4 includes a first inorganic layer 41 .

[0097] Optionally, the first insulating layer 4 includes a first organic layer 42 .

[0098] Specifically, the first insulating layer 4 may include a first inorganic layer 41 and a first organic layer 42 .

[0099] Optional, reference Figure 3 and Figure 5 The light-transmitting support structure 20 includes a plurality of sub-support structures 201 , and the vertical projections of the sub-support structures 201 on the first metal layer 3 do not overlap with the first hollow area 31 .

[0100] Here, a plurality may be understood as two or more than two. Exemplarily, the light-transmitting support structure 20 includes two or more sub-support structures 201 .

[0101] Specifically, the vertical projection of the sub-support structure 201 on the first metal layer 3 is set not to overlap with the first hollow area 31, so as to avoid the sub-support structure 201 blocking the optical detection signal emitted by the optical sensor, thereby improving the transmittance of the optical detection signal. The vertical projection of the sub-support structure 201 on the first metal layer 3 may overlap with the first metal layer 3, or may not overlap with the first metal layer 3.

[0102] Optional, Figure 6 yes Figure 1 Another cross-sectional structure diagram along the A-A' direction, Figure 7 yes Figure 1 Another schematic diagram of a cross-sectional structure along the A-A' direction, Figure 8 yes Figure 1 Another cross-sectional structure diagram along the A-A' direction, refer to Figure 6-Figure 8 In the transition zone 022 or the transition zone 022 and the first transparent zone 023 , the first organic layer 42 includes a plurality of second hollow areas 421 , the vertical projections of the first hollow area 31 and the second hollow area 421 on the substrate 1 overlap, and the vertical projection of the sub-support structure 201 on the first organic layer 42 does not overlap with the second hollow area 421 .

[0103] The term "multiple" may be understood as two or more than two. For example, the first organic layer 42 includes two or more second hollow regions 421. The second hollow region 421 may be disposed only in the transition region 022, or in both the transition region 022 and the first transparent region 023.

[0104] Specifically, the vertical projections of the first hollow area 31 and the second hollow area 421 are arranged to overlap on the substrate 1, so that the optical detection signal emitted by the optical sensor can pass through the overlap of the vertical projections of the first hollow area 31 and the second hollow area 421, ensuring the transmittance of the optical detection signal. At the same time, the vertical projection of the support column 21 on the first organic layer 42 is arranged not to overlap with the second hollow area 421, so as to avoid the support column 21 blocking the optical detection signal emitted by the optical sensor, and further improve the transmittance of the optical detection signal.

[0105] Optional, continue to refer to Figure 6-Figure 8 , the vertical projections of the first hollow area 31 and the second hollow area 421 on the substrate 1 overlap.

[0106] Specifically, the vertical projections of the first hollow area 31 and the second hollow area 421 on the substrate 1 are arranged to overlap, thereby further improving the transmittance of the optical detection signal.

[0107] Optional, continue to refer to Figure 6-Figure 8 In the transition region 022 , the vertical projections of the light-transmitting support structure 20 , the first organic layer 42 , and the first metal layer 3 on the substrate 1 overlap.

[0108] Specifically, in the transition region 022 , the vertical projections of the light-transmitting support structure 20 , the first organic layer 42 and the first metal layer 3 on the substrate 1 overlap, which reduces the transmission obstacle of the optical detection signal and further improves the transmittance of the optical detection signal.

[0109] For further information, please refer to Figure 6-Figure 8 , the display area 01 includes a multi-layer array metal layer 5 and a multi-layer second insulating layer 6; the array metal layer 5 and the second insulating layer 6 are arranged between the substrate 1 and the support column layer 2;

[0110] Each first metal layer 3 is disposed on the same layer as an array metal layer 5 , and each first insulating layer 4 is disposed on the same layer as a second insulating layer 6 .

[0111] Specifically, each first metal layer 3 is arranged at the same layer as an array metal layer 5, so that the array metal layer 5 and the first metal layer 3 in the display area 01 can be prepared in the same preparation process, and each first insulating layer 4 is arranged at the same layer as a second insulating layer 6, so that the second insulating layer 6 in the display area 01 can be prepared in the same preparation process as the first insulating layer 4, thereby reducing the process cost.

[0112] Optional, continue to refer to Figure 6-Figure 8 , the multi-layer array metal layer 5 extends from the display area 01 to the first winding area 021 and the transition area 022, the multi-layer second insulating layer 6 extends from the display area 01 to the first winding area 021 and the transition area 022, at least one layer of the array metal layer 5 is reused as the first metal layer 3, and at least one layer of the second insulating layer 6 is reused as the first insulating layer 4.

[0113] Specifically, the multi-layer array metal layer 5 is extended from the display area 01 to the first winding area 021 and the transition area 022, and the multi-layer second insulating layer 6 is extended from the display area 01 to the first winding area 021 and the transition area 022. This can further reduce the film layer height difference between the display area 01 and the first hole area 02, further avoid the first hole area 02 from being depressed, and further avoid the first hole area 02 from having Newton rings.

[0114] Optional, continue to refer to Figure 6-Figure 8 , the second insulating layer 6 includes an inorganic insulating layer 61 and an organic insulating layer 62 .

[0115] Specifically, Figure 7 As shown, only the inorganic insulating layer 61 may be disposed in the first transparent region 023 without the light-transmitting support structure 20 .

[0116] Optionally, the organic insulating layer 62 includes a planarization layer 621 and a pixel defining layer 622. Optionally, refer to Figure 8 The multiple second insulating layers all extend from the display area 01 to the first winding area 021 , the transition area 022 and the first transparent area 023 .

[0117] Herein, multi-layer can be understood as two or more layers.

[0118] Specifically, by setting up multiple layers of second insulating layers extending from the display area 01 to the first winding area 021, the transition area 022 and the first transparent area 023, the height of the transparent support structure 20 in the first transparent area 023 can be increased, so that the transparent support structure 20 can better support the film layer such as the cover plate 30, further reducing the height difference of the film layer between the display area 01 and the first hole area 02, thereby further avoiding the occurrence of depressions in the first hole area 02 and further avoiding the occurrence of Newton rings in the first hole area 02.

[0119] For further reference, Figure 2-Figure 8 , the display panel further comprises:

[0120] The ink layer 7 is disposed between the light-transmitting support structure 20 and the cover plate 30 , and the ink layer 7 covers the first hole area 02 .

[0121] Specifically, the ink layer 7 is used to cover the structure of the first hole area 02 to avoid affecting the display effect.

[0122] Optionally, the display panel further includes a polarizer layer 8 , which is disposed between the light-transmitting support structure 20 and the cover plate 30 , and covers the first winding area 021 .

[0123] Specifically, the polarizer layer 8 only extends to the first winding area 021 and does not cover the transition area 022 and the first transparent area 023 , thereby avoiding affecting the detection range and transmittance of the optical detection signal.

[0124] Optionally, the display panel further includes a touch metal layer 9 , which is disposed between the light-transmitting support structure 20 and the cover plate 30 , and extends from the display area 01 to the first winding area 021 .

[0125] Specifically, the touch metal layer 9 is extended from the display area 01 to the first winding area 021 , and the multiple touch leads bypass the transition area 022 and the first transparent area 023 to be connected to the multiple touch leads of the touch metal layer 9 in the display area 01 .

[0126] Furthermore, Fig. 9 is a schematic structural diagram of a display panel provided according to an embodiment of the present invention, Fig.10 yes Fig. 9 A schematic diagram of a cross-sectional structure along the B-B' direction, refer to Fig. 9 and Fig.10The substrate 1 further includes a second hole area 03; the display area 01 surrounds the second hole area 03, the second hole area 03 includes a second winding area 031 and a second transparent area 032, the second winding area 031 surrounds the second transparent area 032; the second winding area 031 is provided with a plurality of leads, which are electrically connected to the leads in the display area 01;

[0127] The display panel also includes:

[0128] The shielding layer 04 is disposed between the light-transmitting support structure 20 and the cover plate 30 , and the shielding layer 04 covers the second winding area 031 .

[0129] Specifically, the shielding layer 04 is provided to cover the second winding area 031 , so as to effectively shield the second winding area 031 and prevent bright light from appearing at the edge of the second winding area 031 close to the second transparent area 032 .

[0130] Optionally, the second transparent area 032 does not include a metal film layer, an organic film layer, and an inorganic film layer.

[0131] Specifically, by not providing a metal film layer, an organic film layer, and an inorganic film layer in the second transparent area 032 , the light transmittance in the second hole area 03 can be improved.

[0132] For further reference, Fig.10 The shielding layer 04 includes at least one of an ink layer 7 and a polarizer layer 8 .

[0133] Specifically, at least one layer may be understood as one or more than one layer. For example, only the ink layer 7 may be provided to cover the second winding area 031 , or only the polarizer layer 8 may be provided to cover the second winding area 031 , or both the ink layer 7 and the polarizer layer 8 may be provided at the same time.

[0134] Optionally, the display panel further includes a touch metal layer 9 , which is disposed between the shielding layer 04 and the substrate 1 , and extends from the display area 01 to the second winding area 031 .

[0135] Specifically, the touch metal layer 9 is extended from the display area 01 to the first winding area 021 , and the multiple touch leads bypass the transition area 022 and the first transparent area 023 to be connected to the multiple touch leads of the touch metal layer 9 in the display area 01 .

[0136] For further information, please refer to Fig.10 The second winding area 031 includes a support column layer 2, at least one second metal layer 10 and at least one third insulating layer 11; the support column layer 2, the second metal layer 10 and the third insulating layer 11 are arranged between the substrate 1 and the shielding layer 04.

[0137] Specifically, at least one layer can be understood as one or more than one layer. For example, the second winding area 031 may include one second metal layer 10 and one third insulating layer 11, or may include two second metal layers 10 and two third insulating layers 11. At least one third insulating layer 11 is provided between adjacent second metal layers 10. By providing the second winding area 031 to include a support column layer 2, at least one second metal layer 10 and at least one third insulating layer 11, the height of the transparent support structure 20 in the second winding area 031 can be increased, so that the transparent support structure 20 can better support the film layer such as the cover plate 30.

[0138] Optionally, the third insulating layer 11 includes at least one of a third inorganic layer 111 and a third organic layer 112 .

[0139] Specifically, the third insulating layer 11 may include only the third inorganic layer 111 , or only the third organic layer 112 , or may include both the third inorganic layer 111 and the third organic layer 112 .

[0140] Optionally, the support column layer 2 includes a plurality of support columns 21, and the plurality of support columns 21 are arranged at intervals.

[0141] Specifically, multiple can be understood as two or more than two. For example, the support column layer 2 includes two or more support columns 21. The multiple support columns 21 are arranged at intervals to effectively support the film layers such as the cover plate 30 of the second winding area 031.

[0142] Optionally, the display area 01 includes multiple array metal layers 5 and multiple second insulating layers 6 ; each second metal layer 10 is disposed on the same layer as an array metal layer 5 , and each third insulating layer 11 is disposed on the same layer as a second insulating layer 6 .

[0143] Specifically, each second metal layer 10 is arranged on the same layer as an array metal layer 5, so that the array metal layer 5 in the display area 01 can be prepared in the same preparation process as the second metal layer 10, and each third insulating layer 11 is arranged on the same layer as a second insulating layer 6, so that the second insulating layer 6 in the display area 01 can be prepared in the same preparation process as the third insulating layer 11, thereby reducing the process cost.

[0144] Optionally, multiple layers of array metal layers 5 extend from the display area 01 to the second winding area 031, multiple layers of second insulating layers 6 extend from the display area 01 to the second winding area 031, at least one layer of array metal layer 5 is reused as the second metal layer 10, and at least one layer of second insulating layer 6 is reused as the third insulating layer 11.

[0145] Specifically, the multi-layer array metal layer 5 is extended from the display area 01 to the first winding area 021 and the transition area 022, and the multi-layer second insulating layer 6 is extended from the display area 01 to the first winding area 021 and the transition area 022, which can reduce the film layer height difference between the display area 01 and the second hole area 03.

[0146] Further, such as Figure 1 and Fig. 9 As shown, the first hole area 02 is used to set the first optical sensor, and the second hole area 03 is used to set the second optical sensor.

[0147] Optionally, the first optical sensor includes an infrared sensor, and the second optical sensor includes a camera.

[0148] Specifically, an infrared sensor is provided in the first hole area 02 to realize face recognition and infrared distance measurement. A camera is provided in the second hole area 03 to realize functions such as front camera photography.

[0149] Optionally, the first hole area 02 includes an elliptical hole area, and the second hole area 03 includes a circular hole area.

[0150] A display device provided by an embodiment of the present invention includes the display panel described in any of the above embodiments, and thus has the beneficial effects of the above display panel, which will not be described in detail herein.

[0151] 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.

[0152] 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 substrate, the substrate comprising a display area and a first hole area; the size of the first hole area along a first direction is greater than the size along a second direction, and the first direction and the second direction intersect each other; the display area surrounds the first hole area; the first hole area comprises a first winding area, a transition area and at least two first transparent areas, the first winding area surrounds the transition area, and the transition area surrounds the first transparent area; the at least two first transparent areas are arranged in sequence along the first direction; the first winding area is provided with a plurality of leads, and the leads are electrically connected to the leads in the display area; The transition zone includes a light-transmitting support structure, and the light-transmitting support structure is arranged on one side of the substrate; The display panel further includes a cover plate, which is disposed on a side of the light-transmitting support structure away from the substrate, and covers the display area and the first hole area.

2. The display panel according to claim 1, characterized in that: The display panel further comprises a support column layer, wherein the support column layer is arranged between the substrate and the cover plate; the support column layer extends from the display area through the first winding area to the transition area; the light-transmitting support structure comprises the support column layer; The height difference between the support column layer in the first hole area and the surface of the substrate away from the support column layer in the display area and the surface of the substrate away from the support column layer in the display area is less than or equal to a first preset value; Preferably, the height difference between the support column layer in the first winding area and the surface of the substrate away from the support column layer in the transition area and the surface of the substrate away from the support column layer in the transition area is less than or equal to a second preset value; Preferably, the height difference between the support column layer in the first winding area and the surface of the substrate away from the support column layer in the transition area is zero; Preferably, the height difference between the support column layer in the first hole area and the surface of the substrate away from the support column layer in the display area and the surface of the substrate away from the support column layer in the first hole area is zero; Preferably, the light-transmitting support structure is also arranged in the first transparent area; Preferably, the support column layer extends from the display area to the first winding area, the transition area and the first transparent area.

3. The display panel according to claim 1 or 2, characterized in that: The first winding area includes at least one first metal layer and at least one first insulating layer; the first metal layer and the first insulating layer are arranged between the substrate and the cover plate; The support column layer of the transition region further comprises the first insulating layer or the first metal layer and the first insulating layer on a side close to the substrate; when the transition region comprises the first metal layer, the first metal layer of the transition region comprises a plurality of first hollow regions; Preferably, the at least one first metal layer and the at least one first insulating layer both extend from the first winding area to the transition area; Preferably, the first insulating layer extends from the first winding area to the transition area and the first transparent area; Preferably, the first insulating layer comprises a first inorganic layer; Preferably, the first insulating layer further comprises a first organic layer; Preferably, the light-transmitting support structure includes a plurality of sub-support structures, and the vertical projections of the sub-support structures on the first metal layer do not overlap with the first hollow area; Preferably, in the transition area or in the transition area and the first transparent area, the first organic layer includes a plurality of second hollow areas, the first hollow areas overlap with the second hollow areas in a vertical projection of the substrate, and the vertical projection of the sub-support structure on the first organic layer does not overlap with the second hollow areas; Preferably, the vertical projections of the first hollow area and the second hollow area on the substrate overlap; Preferably, in the transition region, vertical projections of the light-transmitting support structure, the first organic layer and the first metal layer on the substrate overlap.

4. The display panel according to claim 3, characterized in that: The display area includes a plurality of array metal layers and a plurality of second insulating layers; the array metal layers and the second insulating layers are arranged between the substrate and the light-transmitting support structure; Each of the first metal layers is disposed on the same layer as a layer of the array metal layer, and each of the first insulating layers is disposed on the same layer as a layer of the second insulating layer; Preferably, the multi-layer array metal layer extends from the display area to the first winding area and the transition area, the multi-layer second insulating layer extends from the display area to the first winding area and the transition area, at least one layer of the array metal layer is reused as the first metal layer, and at least one layer of the second insulating layer is reused as the first insulating layer; Preferably, the second insulating layer includes an inorganic insulating layer and an organic insulating layer; Preferably, the organic insulating layer includes a planarization layer and a pixel defining layer; Preferably, the multiple layers of second insulating layers all extend from the display area to the winding area, the transition area and the first transparent area.

5. The display panel according to claim 1, characterized in that: Also includes: An ink layer, wherein the ink layer is disposed between the light-transmitting support structure and the cover plate, and the ink layer covers the first hole area; Preferably, the display panel further comprises a polarizer layer, wherein the polarizer layer is disposed between the light-transmitting support structure and the cover plate, and the polarizer layer covers the first winding area; Preferably, the display panel further comprises a touch metal layer, wherein the touch metal layer is disposed between the light-transmitting support structure and the cover plate, and the touch metal layer extends from the display area to the first winding area.

6. The display panel according to claim 1, characterized in that: The substrate further comprises a second hole area; the display area surrounds the second hole area, the second hole area comprises a second winding area and a second transparent area, the second winding area surrounds the second transparent area; the second winding area is provided with a plurality of leads, and the leads are electrically connected to the leads in the display area; The display panel further includes: a shielding layer, the shielding layer being disposed between the light-transmitting support structure and the cover plate, and the shielding layer covering the second winding area; Preferably, the second transparent area does not include a metal film layer, an organic film layer and an inorganic film layer.

7. The display panel according to claim 6, characterized in that: The shielding layer includes at least one of an ink layer and a polarizer layer; Preferably, the display panel further includes a touch metal layer, the touch metal layer is disposed between the shielding layer and the substrate, and the touch metal layer extends from the display area to the second winding area.

8. The display panel according to claim 6, characterized in that: The second winding area includes a support column layer, at least one second metal layer and at least one third insulating layer; the support column layer, the second metal layer and the third insulating layer are arranged between the substrate and the shielding layer; Preferably, the third insulating layer includes at least one of a third inorganic layer and a third organic layer; Preferably, the support column layer includes a plurality of support columns, and the plurality of support columns are arranged at intervals; Preferably, the display area includes multiple array metal layers and multiple second insulating layers; each of the second metal layers is disposed on the same layer as a layer of the array metal layer, and each of the third insulating layers is disposed on the same layer as a layer of the second insulating layer; Preferably, the multi-layer array metal layers all extend from the display area to the second winding area, the multi-layer second insulating layers all extend from the display area to the second winding area, at least one layer of the array metal layer is reused as the second metal layer, and at least one layer of the second insulating layer is reused as the third insulating layer.

9. The display panel according to claim 6, characterized in that: The first hole area is used to set a first optical sensor, and the second hole area is used to set a second optical sensor; Preferably, the first optical sensor includes an infrared sensor, and the second optical sensor includes a camera; Preferably, the first hole area includes an elliptical hole area, and the second hole area includes a circular hole area.

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

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