Display panel and display device

Abstract

The invention discloses a display panel and a display device. The display panel is provided with a display area and a non-display area. The display panel comprises a substrate; the limiting structure is arranged on one side of the substrate and provided with a limiting opening located in the display area and a ventilation opening located in the non-display area; and the light emitting device is arranged in the limiting opening. The display panel provided by the embodiment of the invention has relatively good structural reliability.

Description

Technical Field

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

[0002] Organic Light Emitting Diode (OLED) and flat panel display devices based on technologies such as Light Emitting Diode (LED) have been widely used in various consumer electronic products such as mobile phones, televisions, laptops, desktop computers, etc. due to their advantages such as high image quality, power saving, thin body and wide application range, becoming the mainstream in display devices.

[0003] However, the process reliability of current OLED display products needs to be improved. Summary of the invention

[0004] Embodiments of the present application provide a display panel and a display device, aiming to improve the structural reliability of the display panel.

[0005] An embodiment of the first aspect of the present application provides a display panel, which has a display area and a non-display area. The display panel includes: a substrate; a limiting structure, which is arranged on one side of the substrate and has a limiting opening located in the display area and a ventilation opening located in the non-display area; and a light-emitting device, which is arranged in the limiting opening.

[0006] According to an implementation of the first aspect of the present application, the substrate includes a substrate and a planarization layer arranged on one side of the substrate, the planarization layer extends from the display area to the non-display area, the limiting structure is located on the side of the planarization layer away from the substrate, and the air permeable opening exposes the planarization layer.

[0007] According to any of the aforementioned embodiments of the first aspect of the present application, the material of the planarization layer includes an organic material.

[0008] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection of the gas permeable opening on the substrate is located within the orthographic projection of the planarization layer on the substrate.

[0009] According to any of the aforementioned embodiments of the first aspect of the present application, the planarization layer includes a first planarization portion and a second planarization portion located in the non-display area, the air-permeable opening exposes the first planarization portion, the second planarization portion is located between the limiting structure and the substrate, a surface of the first planarization portion facing away from the substrate has a first distance from the substrate, a surface of the second planarization portion facing away from the substrate has a second distance from the substrate, and the second distance is greater than the first distance.

[0010] According to any of the aforementioned embodiments of the first aspect of the present application, the non-display area includes a hole area and a transition area arranged between the hole area and the display area, the planarization layer extends from the display area to the transition area, and the planarization layer is spaced apart from the hole area.

[0011] According to any of the aforementioned embodiments of the first aspect of the present application, the air permeable opening is located in the transition zone, there are multiple air permeable openings, and the multiple air permeable openings are arranged at intervals around the hole area.

[0012] According to any of the aforementioned embodiments of the first aspect of the present application, the display panel also includes a dam structure arranged on one side of the substrate, the dam structure is spaced apart from the planarization layer, and the dam structure is located between the planarization layer and the hole area; preferably, the partial limiting structure extends to the side of the dam structure away from the substrate.

[0013] According to any of the aforementioned embodiments of the first aspect of the present application, the defining structure includes a pixel defining portion, and the air permeable opening is arranged through the pixel defining portion, and / or the defining structure includes an isolation structure, and the air permeable opening is arranged through the isolation structure, the isolation structure includes a first isolation portion and a second isolation portion located on the side of the first isolation portion away from the substrate, and the second isolation portion protrudes from the first isolation portion toward the defining opening and / or the air permeable opening.

[0014] According to any of the aforementioned implementations of the first aspect of the present application, the material of the pixel defining portion includes an inorganic material.

[0015] According to any of the aforementioned embodiments of the first aspect of the present application, the limiting structure includes a pixel limiting portion and an isolation structure, the non-display area includes a hole area and a transition area arranged between the hole area and the display area, the isolation structure and the pixel limiting portion extend from the display area to the transition area, the edge of the isolation structure close to the hole area has a first spacing from the side wall of the hole area, the edge of the pixel limiting portion close to the hole area has a second spacing from the side wall of the hole area, and the first spacing is greater than the second spacing.

[0016] According to any of the aforementioned embodiments of the first aspect of the present application, the isolation structure is arranged on the side of the pixel defining portion facing away from the substrate, and the air permeable opening includes a first air permeable opening that passes through the isolation structure and the pixel defining portion and a second air permeable opening that only passes through the pixel defining portion, and the second air permeable opening is located on the side of the isolation structure away from the display area.

[0017] According to any of the aforementioned embodiments of the first aspect of the present application, the substrate includes a substrate, a planarization layer arranged on one side of the substrate, and a signal routing arranged between the substrate and the planarization layer, at least part of the signal routing is located in a non-display area, the orthographic projection of the first air opening on the substrate at least partially overlaps with the orthographic projection of the signal routing in the non-display area on the substrate, and / or the orthographic projection of the second air opening on the substrate does not overlap with the orthographic projection of the signal routing on the substrate.

[0018] According to any of the aforementioned embodiments of the first aspect of the present application, the display panel also includes a dam structure arranged on one side of the substrate, the dam structure is spaced apart from the planarization layer, and the dam structure is located between the planarization layer and the hole area, and a portion of the pixel defining portion extends to a side of the dam structure away from the substrate.

[0019] According to any of the aforementioned embodiments of the first aspect of the present application, the material of the isolation structure includes a conductive material, and in a direction away from the substrate, the light-emitting device includes a first electrode, a light-emitting unit and a second electrode stacked in sequence, and the second electrode is connected to the isolation structure.

[0020] According to any of the aforementioned embodiments of the first aspect of the present application, the isolation structure also includes a conductive portion arranged on the side of the first isolation portion facing the substrate, the conductive portion protruding from the first isolation portion toward the limited opening and / or the air-permeable opening, and the second electrode is connected to the conductive portion.

[0021] An embodiment of the first aspect of the present application also provides a display panel, the display panel having a display area and a non-display area, the display panel comprising: a substrate, comprising a substrate, a planarization layer arranged on one side of the substrate, and a signal routing arranged between the substrate and the planarization layer, at least part of the signal routing is located in the non-display area; a limiting structure, arranged on one side of the substrate and having a limiting opening located in the display area and a ventilation opening located in the non-display area; a light-emitting device, arranged in the limiting opening; a projection of the ventilation opening on the substrate at least partially overlaps with a positive projection of the signal routing in the non-display area on the substrate.

[0022] According to an implementation of the first aspect of the present application, the planarization layer extends from the display area to the non-display area, the defining structure is located on a side of the planarization layer facing away from the substrate, and the air permeable opening exposes the planarization layer.

[0023] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection of the gas permeable opening on the substrate is located within the orthographic projection of the planarization layer on the substrate.

[0024] According to any of the aforementioned embodiments of the first aspect of the present application, the material of the planarization layer includes an organic material.

[0025] According to any of the aforementioned embodiments of the first aspect of the present application, the non-display area includes a hole area and a transition area arranged between the hole area and the display area, the planarization layer extends from the display area to the transition area, and the planarization layer is spaced apart from the hole area.

[0026] According to any of the aforementioned embodiments of the first aspect of the present application, the air permeable opening is located in the transition zone, there are multiple air permeable openings, and the multiple air permeable openings are arranged at intervals around the hole area.

[0027] According to any of the aforementioned implementations of the first aspect of the present application, the display panel further includes a dam structure disposed on one side of the substrate, the dam structure is spaced apart from the planarization layer, and the dam structure is located between the planarization layer and the hole area.

[0028] According to any of the aforementioned embodiments of the first aspect of the present application, the planarization layer includes a first planarization portion and a second planarization portion located in the non-display area, the air-permeable opening exposes the first planarization portion, the second planarization portion is located between the limiting structure and the substrate, a surface of the first planarization portion facing away from the substrate has a first distance from the substrate, a surface of the second planarization portion facing away from the substrate has a second distance from the substrate, and the second distance is greater than the first distance.

[0029] According to any of the aforementioned embodiments of the first aspect of the present application, the defining structure includes a pixel defining portion, and the air permeable opening is arranged through the pixel defining portion, and / or the defining structure includes an isolation structure, and the air permeable opening is arranged through the isolation structure, the isolation structure includes a first isolation portion and a second isolation portion located on the side of the first isolation portion away from the substrate, and the second isolation portion protrudes from the first isolation portion toward the defining opening and / or the air permeable opening.

[0030] According to any of the aforementioned implementations of the first aspect of the present application, the material of the pixel defining portion includes an inorganic material.

[0031] According to any of the aforementioned embodiments of the first aspect of the present application, the limiting structure includes a pixel limiting portion and an isolation structure, the non-display area includes a hole area and a transition area arranged between the hole area and the display area, the isolation structure and the pixel limiting portion extend from the display area to the transition area, the edge of the isolation structure close to the hole area has a first spacing from the side wall of the hole area, the edge of the pixel limiting portion close to the hole area has a second spacing from the side wall of the hole area, and the first spacing is greater than the second spacing.

[0032] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection of part of the air openings on the substrate at least partially overlaps with the orthographic projection of the signal routing in the non-display area on the substrate, and / or, the orthographic projection of part of the air openings on the substrate does not overlap with the orthographic projection of the signal routing on the substrate.

[0033] According to any of the aforementioned embodiments of the first aspect of the present application, the isolation structure is arranged on the side of the pixel defining portion facing away from the substrate, and the air permeable opening includes a first air permeable opening that passes through the isolation structure and the pixel defining portion and a second air permeable opening that only passes through the pixel defining portion, and the second air permeable opening is located on the side of the isolation structure away from the display area.

[0034] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection of the first air opening on the substrate at least partially overlaps with the orthographic projection of the signal routing in the non-display area on the substrate, and / or the orthographic projection of the second air opening on the substrate does not overlap with the orthographic projection of the signal routing on the substrate.

[0035] An embodiment of a second aspect of the present application provides a display device, which includes a display panel according to any of the above embodiments.

[0036] In a display panel provided in an embodiment of the present application, the display panel has a display area and a non-display area, and the display panel includes a substrate, a limiting structure, and a light-emitting device. The limiting structure is arranged on one side of the substrate and has a limiting opening located in the display area, and the limiting structure can be used to divide the sub-pixels of the display panel. The light-emitting device is arranged in the limiting opening in the display area, and the light-emitting device can realize the light-emitting display of the display area in the display panel.

[0037] The limiting structure is also provided with a ventilation opening located in the non-display area. The ventilation opening can be used to discharge the gas generated by the underlying film layer during the preparation process of the display panel, which can improve the structural reliability of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0039] Figure 1 is a schematic diagram of the structure of a display panel provided in an embodiment of the present application;

[0040] Figure 2 is a schematic diagram of a partial structure of a display panel provided in an embodiment of the present application;

[0041] Figure 3 is a partial cross-sectional view of a display panel provided in an embodiment of the present application;

[0042] Figure 4 is a partial cross-sectional view of a display panel provided by another embodiment of the present application;

[0043] Figure 5 is a partial cross-sectional view of a display panel provided in yet another embodiment of the present application;

[0044] Figure 6 This is a partial cross-sectional view of a display panel provided in yet another embodiment of the present application.

[0045] Description of reference numerals:

[0046] 10. Display panel;

[0047] 100, substrate; 110, substrate; 120, first insulating layer; 130, second insulating layer; 140, third insulating layer; 150, driving circuit; 151, transistor; 151a, gate; 151b, source and drain; 152, storage capacitor; 152a, first plate; 152b, second plate; 153, signal trace; 160, planarization layer; 161, first planarization portion; 162, second planarization portion;

[0048] 200, defining structure; 201, defining opening; 202, ventilation opening; 202a, first ventilation opening; 202b, second ventilation opening; 210, isolation structure; 211, first isolation part; 212, second isolation part; 213, conductive part; 220, pixel defining part;

[0049] 300, light emitting device; 310, first electrode; 320, light emitting unit; 330, second electrode;

[0050] 400, encapsulation layer; 410, first encapsulation layer; 420, second encapsulation layer; 430, third encapsulation layer;

[0051] 500. Dam structure;

[0052] H, functional hole;

[0053] AA, display area;

[0054] NA, non-display area; NA1, transition area; NA2, hole area. DETAILED DESCRIPTION

[0055] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present application and are not configured to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0056] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0057] It should be understood that when describing the structure of a component, when a layer or a region is referred to as being "on" or "over" another layer or another region, it may mean that it is directly on the other layer or another region, or that other layers or regions are included between it and the other layer or another region. Moreover, if the component is turned over, the layer or a region will be "below" or "beneath" another layer or another region.

[0058] Embodiments of the present application provide a display panel and a display device. Embodiments of the display panel and the display device will be described below in conjunction with the accompanying drawings.

[0059] Figure 1 is a schematic structural diagram of a display panel 10 provided in an embodiment of the present application, Figure 2 is a partial structural diagram of a display panel 10 provided in an embodiment of the present application, Figure 3 It is a partial cross-sectional view of a display panel 10 provided in an embodiment of the present application.

[0060] like Figures 1 to 3 As shown, an embodiment of the first aspect of the present application provides a display panel 10, the display panel 10 has a display area AA and a non-display area NA, and the display panel 10 includes: a substrate 100; a limiting structure 200, which is arranged on one side of the substrate 100 and has a limiting opening 201 located in the display area AA and a ventilation opening 202 located in the non-display area NA; a light-emitting device 300, which is arranged in the limiting opening 201.

[0061] In a display panel 10 provided in an embodiment of the present application, the display panel 10 has a display area AA and a non-display area NA, and the display panel 10 includes a substrate 100, a limiting structure 200, and a light-emitting device 300. The limiting structure 200 is disposed on one side of the substrate 100 and is provided with a limiting opening 201 located in the display area AA, and the limiting structure 200 can be used to divide the sub-pixels of the display panel 10. The light-emitting device 300 is disposed in the limiting opening 201 in the display area AA, and the light-emitting device 300 can realize the light-emitting display of the display area AA in the display panel 10.

[0062] Optionally, the defining opening 201 may be provided through the defining structure 200 .

[0063] The limiting structure 200 is further provided with a ventilation opening 202 located in the non-display area NA. The ventilation opening 202 can be used to discharge the gas generated by the film layer below during the preparation process of the display panel 10 , which can improve the structural reliability of the display panel 10 .

[0064] Optionally, the ventilation opening 202 may be provided through the defining structure 200 .

[0065] In some optional embodiments of the present application, there are many ways to set the position and function of the non-display area NA of the display panel 10.

[0066] Optionally, at least a portion of the non-display area NA of the display panel 10 may serve as a frame area of ​​the display panel 10. Optionally, the non-display area NA serving as the frame area may be disposed around at least a portion of the display area AA.

[0067] Optionally, at least part of the non-display area NA of the display panel 10 may be used as a functional area of ​​the display panel 10. For example, the non-display area NA may include a hole area NA2, and the display panel 10 may be provided with a functional hole H in the hole area NA2, so that the display panel 10 at the hole area NA2 is not easy to block the transmission of light, so that when the display panel 10 is applied to a display device, the photosensitive component for sensing light in the display device may be correspondingly arranged under the hole area NA2 of the display panel 10, and the photosensitive component can better sense light through the hole area NA2. Among them, the photosensitive component may include: at least one of the components capable of sensing light, such as a distance sensor, a camera, an under-screen fingerprint recognition module, an infrared light emitting diode (IR-LED) proximity sensor, etc. Optionally, the non-display area NA as a functional area may be at least partially surrounded by the display area AA.

[0068] For the convenience of description, the following embodiments are described by taking the non-display area NA as an example of a functional area of ​​the display panel 10 .

[0069] In some optional embodiments, the non-display area NA may further include a transition area NA1 disposed between the hole area NA2 and the display area AA.

[0070] Optionally, the display area AA may be disposed around at least a portion of the transition area NA1 , and the transition area NA1 may be disposed around at least a portion of the hole area NA2 .

[0071] In these optional embodiments, by setting a transition area NA1 between the hole area NA2 and the display area AA, the path for water vapor to invade from the hole area NA2 to the display area AA can be better improved, so that during the preparation process of the display panel 10, water vapor is not easy to invade the display area AA along the boundary of the hole area NA2, thereby better improving the preparation yield of the display panel 10.

[0072] In some optional embodiments, the ventilation opening 202 may be located in the transition area NA1.

[0073] Optionally, there may be a plurality of air permeable openings 202 , and the plurality of air permeable openings 202 are spaced apart around the circumference of the hole area NA2 .

[0074] In these optional embodiments, the ventilation openings 202 located in the transition area NA1 can better improve the ventilation capacity of the display panel 10 located in the transition area NA1 during the preparation process of the display panel 10 .

[0075] In some embodiments of the present application, there are many ways to set the shape of the ventilation opening 202. For example, the ventilation opening 202 can be a circular opening, a square opening, etc., which is not specifically limited in the present application.

[0076] In some embodiments of the present application, there are various ways to configure the substrate 100 . The substrate 100 , for example, may include a substrate 110 and a planarization layer 160 disposed on one side of the substrate 110 .

[0077] Optionally, the material of the planarization layer 160 may include organic material, so that during the preparation process of the display panel 10, the material of the planarization layer 160 may have better fluidity, and the surface of the planarization layer 160 facing away from the substrate 110 may have better flatness, which can facilitate the preparation of subsequent film layers on the planarization layer 160.

[0078] Optionally, the substrate 100 may further include a driving circuit 150 disposed between the substrate 110 and the planarization layer 160. Optionally, the substrate 100 includes a first insulating layer 120, a second insulating layer 130 and a third insulating layer 140 stacked, and the planarization layer 160 may be disposed on the side of the third insulating layer 140 away from the substrate. Exemplarily, the driving circuit 150 may include a transistor 151, a storage capacitor 152, and a signal trace 153 for connecting various devices. The transistor 151 includes a semiconductor, a gate 151a and a source and drain 151b. The storage capacitor 152 includes a first plate 152a and a second plate 152b. The signal trace 153 may include a data trace.

[0079] As an example, the gate 151a and the first electrode 152a can be located on the side of the first insulating layer 120 facing the substrate 110, the second electrode 152b can be located between the first insulating layer 120 and the second insulating layer 130, and the source and drain 151b can be located between the second insulating layer 130 and the third insulating layer 140.

[0080] Optionally, at least part of the signal lines 153 may be located in the non-display area NA. For example, at least part of the signal lines 153 may extend from the display area AA to the non-display area NA.

[0081] Optionally, the signal wiring 153 located in the non-display area NA may be at least partially disposed between the third insulating layer 140 and the planarization layer 160 .

[0082] In some optional embodiments, in a direction away from the substrate 100 , the light emitting device 300 includes a first electrode 310 , a light emitting unit 320 , and a second electrode 330 which are sequentially stacked.

[0083] Optionally, the light-emitting unit 320 may include a hole injection layer (HIL), a hole transport layer (HTL), a light-emitting structure, an electron injection layer (EIL) and an electron transport layer (ETL).

[0084] In these optional embodiments, the first electrode 310 and the second electrode 330 can be used as pixel electrodes of the display panel 10, one of the first electrode 310 and the second electrode 330 can be used as an anode, and the other can be used as a cathode to drive the light-emitting unit 320 to emit light. The embodiment of the present application is described by taking the first electrode 310 as the anode of the display panel 10 and the second electrode 330 as the cathode of the display panel 10 as an example.

[0085] In some optional embodiments of the present application, the air opening 202 opened on the limiting structure 200 can be used to discharge the gas generated in the underlying film layer during the preparation of the light-emitting device 300. For example, during the preparation of the light-emitting device 300, the substrate 100 needs to be baked before evaporating the materials of the light-emitting unit 320 and the second electrode 330. The air opening 202 can be used to discharge the gas generated in the planarization layer 160 when the substrate 100 is baked, thereby better improving the structural reliability of the display panel 10.

[0086] In some optional embodiments, the planarization layer 160 may extend from the display area AA to the non-display area NA, the defining structure 200 may be located on a side of the planarization layer 160 facing away from the substrate, and the ventilation opening 202 may expose the planarization layer 160 .

[0087] Optionally, the orthographic projection of the vent opening 202 on the substrate 110 may be located within the orthographic projection of the planarization layer 160 on the substrate 110 .

[0088] Optionally, the orthographic projection of the air-permeable opening 202 on the substrate 110 may refer to a projection area formed by the orthographic projection of the inner wall of the air-permeable opening 202 on the substrate 110 .

[0089] Optionally, the planarization layer 160 may extend from the display area AA to the transition area NA1, and the planarization layer 160 may be spaced apart from the hole area NA2, so that water vapor is not easy to invade the planarization layer 160 through the hole area NA2, thereby enabling the planarization layer 160 to have better structural reliability.

[0090] In these optional embodiments, the planarization layer 160 is exposed by providing a ventilation opening 202. For example, the ventilation opening 202 is provided on the side of the planarization layer 160 facing away from the substrate 110. In the preparation process of the display panel 10, the ventilation opening 202 can better discharge the gas generated in the planarization layer 160, thereby improving the structural reliability of the display panel 10.

[0091] Figure 4 It is a partial cross-sectional view of a display panel 10 provided in another embodiment of the present application.

[0092] like Figure 4As shown, in some optional embodiments, the planarization layer 160 includes a first planarization portion 161 and a second planarization portion 162 located in the non-display area NA, the air permeable opening 202 exposes the first planarization portion 161, the second planarization portion 162 is located between the defining structure 200 and the substrate 110, a first distance d1 is provided between the surface of the first planarization portion 161 facing away from the substrate 110 and the substrate 110, a second distance d2 is provided between the surface of the second planarization portion 162 facing away from the substrate 110 and the substrate 110, and the second distance d2 may be greater than the first distance d1.

[0093] Optionally, the orthographic projection of the first planarized portion 161 on the substrate 110 may be located within the orthographic projection of the vent opening 202 on the substrate 110 .

[0094] Optionally, the orthographic projection of the second planarization portion 162 on the substrate 110 may be located within the orthographic projection of the defining structure 200 and the light emitting device 300 on the substrate 110 .

[0095] Optionally, the first distance d1 may be the average distance between the surface of the first planarizing portion 161 facing away from the substrate 110 and the substrate 110, and the second distance d2 may be the average distance between the surface of the second planarizing portion 162 facing away from the substrate 110 and the substrate 110. Exemplarily, the second distance d2 is greater than the first distance d1, which may indicate that the average thickness of the second planarizing portion 162 is greater than the average thickness of the first planarizing portion 161.

[0096] Alternatively, the first distance d1 may be the minimum distance between the surface of the first planarizing portion 161 facing away from the substrate 110 and the substrate 110, and the second distance d2 may be the minimum distance between the surface of the second planarizing portion 162 facing away from the substrate 110 and the substrate 110. Exemplarily, the second distance d2 is greater than the first distance d1, which may reflect that the minimum thickness of the second planarizing portion 162 is greater than the minimum thickness of the first planarizing portion 161.

[0097] In these optional embodiments, the first planarization portion 161 exposed from the air permeable opening 202 is easily affected by the etching of the etching material during the preparation process of the display panel 10, so that part of the material of the first planarization portion 161 away from the substrate 110 is easily etched away, while the second planarization portion 162 covered with the limiting structure 200 is not easily affected by the etching of the etching material during the preparation process of the display panel 10, thereby easily making the second distance d2 greater than the first distance d1.

[0098] In some optional embodiments, the display panel 10 may include a pixel defining portion 220. For example, the defining structure 200 may include a pixel defining portion 220 having a defining opening 201 located in the display area AA and a ventilation opening 202 located in the non-display area NA.

[0099] Optionally, both the limiting opening 201 and the ventilation opening 202 may be disposed through the pixel limiting portion 220 .

[0100] Optionally, the pixel defining portion 220 may be disposed on a side of the planarization layer 160 facing away from the substrate 110 .

[0101] In these optional embodiments, the pixel defining part 220 can be used to participate in dividing the sub-pixels of the display panel 10, and the first electrodes 310 of adjacent light-emitting devices 300 can be insulated by the pixel defining part 220, so that the first electrodes 310 of adjacent light-emitting devices 300 are not easily short-circuited to each other. By providing the air-permeable opening 202 on the pixel defining part 220, the shielding effect of the pixel defining part 220 on the gas discharge of the film layer below can be reduced, for example, the shielding effect of the pixel defining part 220 on the gas discharge in the planarization layer 160 can be reduced, thereby improving the structural reliability of the display panel 10.

[0102] In some optional embodiments, the display panel 10 may further include an isolation structure 210 . Exemplarily, the limiting structure 200 may include the isolation structure 210 . The isolation structure 210 may at least have a limiting opening 201 located in the display area AA.

[0103] Related solutions for isolation structures (also called partition structures, etc.) are disclosed in patents (applications) CN118251982A, 202410864269.8, PCT / CN2024 / 098407, PCT / CN2024 / 102783, PCT / CN2024 / 098217, PCT / CN2024 / 099419, PCT / CN2024 / 099072, CN11797975 5A, CN117998900A, CN117062489A, CN117580403A, CN116583155A, CN116669477A, ​​CN117396039A, CN116669480A, CN116600606A, CN117500332A, etc., the contents of which are incorporated into this application by reference for reference.

[0104] Optionally, the defined opening 201 may be provided through the isolation structure 210 .

[0105] Optionally, the isolation structure 210 may be disposed on a side of the pixel defining portion 220 facing away from the substrate 100 .

[0106] In these optional embodiments, the isolation structure 210 can also be used to participate in dividing the sub-pixels of the display panel 10. The single defining opening 201 can be set through both the isolation structure 210 and the pixel defining portion 220 to facilitate the placement of the light emitting device 300.

[0107] In some optional embodiments, the isolation structure 210 includes a first isolation portion 211 and a second isolation portion 212 located on a side of the first isolation portion 211 facing away from the substrate 100 , and the second isolation portion 212 is disposed to protrude from the first isolation portion 211 toward the defined opening 201 .

[0108] By setting the second isolation portion 212 protruding from the first isolation portion 211, when the light-emitting unit 320 and the second electrode 330 of the display panel 10 are evaporated, the second isolation portion 212 can block at least a portion of the material used to prepare the light-emitting unit 320 and the second electrode 330, so as to separate the materials of the light-emitting unit 320 and the second electrode 330 between adjacent sub-pixels, which can facilitate the formation of a plurality of spaced light-emitting units 320 and second electrodes 330, thereby eliminating the need to set a mask with high precision when evaporating the light-emitting unit 320 and the second electrode 330 of the display panel 10. For example, there is no need to set a high-precision metal mask (Fine Metal Mask, FMM) when evaporating the light-emitting unit 320 and the second electrode 330, thereby effectively reducing the production cost of the display panel 10.

[0109] Optionally, the material of the isolation structure 210 may include a conductive material, and the second electrode 330 may be connected to the isolation structure 210. For example, the material of the first isolation portion 211 may include a conductive material, and the second electrodes 330 of adjacent light-emitting devices 300 may be electrically connected through the isolation structure 210, that is, the second electrodes 330 of adjacent light-emitting devices 300 may be connected to each other through the isolation structure 210 to form a surface electrode, so as to facilitate the control of the second electrodes 330 in the display panel 10.

[0110] Optionally, the isolation structure 210 may further include a conductive portion 213 located on the side of the first isolation portion 211 facing the substrate 100 , and the conductive portion 213 may be disposed protruding from the first isolation portion 211 toward the defined opening 201 . Optionally, the second electrode 330 may be connected to the conductive portion 213 .

[0111] By making the conductive portion 213 protrude from the first isolation portion 211 , the overlap between the second electrode 330 and the conductive portion 213 can be facilitated, and the overlap area between the second electrode 330 and the conductive portion 213 can be improved to reduce the resistance of the display panel 10 .

[0112] Optionally, the isolation structure 210 may be spaced apart from the hole area NA2 so that water vapor cannot easily invade the isolation structure 210 through the hole area NA2, thereby making the isolation structure 210 less susceptible to oxidation and improving the structural reliability of the isolation structure 210.

[0113] In some optional embodiments, the material of the pixel defining portion 220 may include inorganic material, so that the pixel defining portion 220 has a good ability to resist water vapor interference, so that when preparing the isolation structure 210, for example, when the material of the isolation structure 210 is patterned, the pixel defining portion 220 is not easily affected by the etching solution and swells due to water absorption, thereby better improving the structural reliability of the display panel 10.

[0114] like Figure 3 and Figure 4 As shown, in some optional embodiments, the air opening 202 may be opened only in the pixel defining portion 220, and the air opening 202 may not be opened on the isolation structure 210, that is, the defining opening 201 may be opened in the isolation structure 210 and the pixel defining portion 220, and the air opening 202 may be opened only in the pixel defining portion 220.

[0115] In this optional embodiment, by opening a ventilation opening 202 on the pixel defining portion 220, the shielding effect of the pixel defining portion 220 on the gas discharge of the underlying film layer can be reduced, so that the pixel defining portion 220 can be set to have a larger size to facilitate the preparation of the pixel defining portion 220. When the material of the pixel defining portion 220 includes an inorganic material, the pixel defining portion 220 can also play a certain packaging role for the underlying film layer, thereby better improving the structural reliability of the display panel 10.

[0116] Figure 5 It is a partial cross-sectional view of a display panel 10 provided in yet another embodiment of the present application.

[0117] like Figure 5 As shown, in some other optional embodiments, the ventilation opening 202 may be opened on the pixel defining portion 220 and the isolation structure 210 .

[0118] Optionally, the ventilation opening 202 may be provided through the isolation structure 210 .

[0119] Optionally, at least one ventilation opening 202 may be provided through both the isolation structure 210 and the pixel defining portion 220 .

[0120] In these optional embodiments, by opening a breathable opening 202 on the isolation structure 210, the shielding effect of the isolation structure 210 on the gas discharge of the film layer below can be reduced, so that the isolation structure 210 can be set to have a larger size to facilitate the preparation of the isolation structure 210, and the isolation structure 210 can better limit the invasion of water vapor into the display area AA, thereby better improving the structural reliability of the display panel 10.

[0121] In some optional embodiments, the isolation structure 210 and the pixel defining portion 220 may extend from the display area AA to the transition area NA1, and the edge of the isolation structure 210 close to the hole area NA2 has a first spacing from the side wall of the hole area NA2 (for example, the side wall of the functional hole H in the hole area NA2), and the edge of the pixel defining portion 220 close to the side wall of the hole area NA2 has a second spacing from the side wall of the hole area NA2, and the first spacing is greater than the second spacing, so that the pixel defining portion 220 can have a larger size, so that the pixel defining portion 220 located in the transition area NA1, including inorganic materials, can also be used for packaging, thereby improving the packaging effect of the display panel.

[0122] In some optional embodiments, the second isolation portion 212 may be disposed to protrude from the first isolation portion 211 toward the ventilation opening 202 , and / or the conductive portion 213 may be disposed to protrude from the first isolation portion 211 toward the ventilation opening 202 .

[0123] In this optional embodiment, by setting the inner wall morphology of the air opening 202 opened on the isolation opening to be the same as or similar to the inner wall morphology of the limiting opening 201, during the preparation process of the display panel 10, the limiting opening 201 and the air opening 202 opened on the isolation structure 210 can be prepared using the same or similar preparation process, and the limiting opening 201 and the air opening 202 on the isolation structure 210 can be prepared in the same preparation process, thereby greatly improving the preparation efficiency of the display panel 10.

[0124] In some optional embodiments, the ventilation opening 202 may include a first ventilation opening 202a that passes through the isolation structure 210 and the pixel defining portion 220 and a second ventilation opening 202b that only passes through the pixel defining portion 220, and the second ventilation opening 202b is located on a side of the isolation structure 210 away from the display area AA.

[0125] Optionally, the first vent 202 a penetrating the isolation structure 210 and the pixel defining portion 220 may refer to a single first vent 202 a being disposed penetrating both the isolation structure 210 and the pixel defining portion 220 .

[0126] Optionally, the number of the first air permeable opening 202a and the number of the second air permeable opening 202b can be multiple, and the multiple first air permeable openings 202a can be arranged at intervals around the hole area NA2, and the multiple second air permeable openings 202b can also be arranged at intervals around the hole area NA2. Among them, the first air permeable opening 202a can be located on the side of the second air permeable opening 202b away from the hole area NA2.

[0127] In these optional embodiments, at the stacking portion of the isolation structure 210 and the pixel defining portion 220, the gas in the film layer below the pixel defining portion 220 can be discharged outward through the first vent 202a in sequence through the pixel defining portion 220 and the isolation structure 210. In the pixel defining portion 220 not covered by the isolation structure 210 in the transition area NA1, that is, at the pixel defining portion 220 exposed from the isolation structure 210 toward the hole area NA2, the pixel defining portion 220 including an inorganic material can be used to perform a certain packaging effect on the film layer below. By opening the second vent 202b on the pixel defining portion 220 at this position, the pixel defining portion 220 extending from the isolation structure 210 is not likely to cause too much influence on the discharge of the gas from the film layer below, thereby being able to better improve the structural reliability of the display panel 10.

[0128] In some optional embodiments, the orthographic projection of the first vent 202a on the substrate 110 at least partially overlaps with the orthographic projection of the signal line 153 in the non-display area NA on the substrate 110, and / or the orthographic projection of the second vent 202b on the substrate 110 does not overlap with the orthographic projection of the signal line 153 on the substrate 110.

[0129] Optionally, the orthographic projection of the first vent 202a on the substrate 110 may refer to a projection area formed by the orthographic projection of the inner wall of the first vent 202a on the substrate 110. Optionally, the orthographic projection of the second vent 202b on the substrate 110 may refer to a projection area formed by the orthographic projection of the inner wall of the second vent 202b on the substrate 110.

[0130] In this optional embodiment, when at least part of the signal wiring 153 extends from the display area AA to the non-display area NA, compared with the second ventilation opening 202b, the first ventilation opening 202a, which is located closer to the display area AA, is likely to be arranged with denser signal wiring 153. Therefore, in order to arrange denser or larger first ventilation openings 202a in the non-display area NA, the orthographic projection of the first ventilation opening 202a on the substrate 110 can be arranged to at least partially overlap with the orthographic projection of the signal wiring 153 in the non-display area NA on the substrate 110, so as to facilitate the arrangement of the first ventilation opening 202a. The signal lines 153 arranged below the second air vent 202b which is located relatively far from the display area AA are less densely packed. Therefore, the second air vent 202b may be staggered with the signal lines 153. That is, the orthographic projection of the second air vent 202b on the substrate 110 is not overlapped with the orthographic projection of the signal lines 153 on the substrate 110. This prevents the signal lines 153 from being exposed from the second air vent 202b during the preparation of the display panel 10, thereby improving the structural reliability of the display panel 10.

[0131] Figure 6 It is a partial cross-sectional view of a display panel 10 provided in yet another embodiment of the present application.

[0132] like Figure 6 As shown, in some optional embodiments, the display panel 10 further includes an encapsulation layer 400 disposed on the side of the isolation structure 210 and the light-emitting device 300 facing away from the substrate 100 , and the encapsulation layer 400 can be used to implement encapsulation of the display panel 10 .

[0133] Optionally, part of the encapsulation layer 400 may be located within the defined opening 201 and the vent opening 202 .

[0134] Optionally, the encapsulation layer 400 may include a first encapsulation layer 410 disposed on the side of the isolation structure 210 and the light-emitting device 300 away from the substrate 100. Optionally, the material of the first encapsulation layer 410 may include an inorganic material, so that the first encapsulation layer 410 can better reduce the influence of water vapor on the operation of the light-emitting device 300. Exemplarily, the first encapsulation layer 410 can be prepared by a chemical vapor deposition process (Chemical Vapor Deposition, CVD).

[0135] Optionally, the encapsulation layer 400 further includes a second encapsulation layer 420 located on the side of the first encapsulation layer 410 away from the substrate 100, so as to better improve the encapsulation effect of the display panel 10. Optionally, the material of the second encapsulation layer 420 may include an organic material, so that during the preparation process of the display panel 10, the second encapsulation layer 420 may have good fluidity, so that the surface of the second encapsulation layer 420 on the side away from the substrate 100 may have good flatness, which can facilitate the formation of subsequent film layers. Exemplarily, the second encapsulation layer 420 may be prepared by inkjet printing technology (Inkjet Printing, IJP).

[0136] Optionally, the encapsulation layer 400 may further include a third encapsulation layer 430 located on the side of the second encapsulation layer 420 away from the substrate 100, so as to better improve the encapsulation effect of the display panel 10. Optionally, the material of the third encapsulation layer 430 may include an inorganic material, so that the third encapsulation layer 430 can better reduce the influence of water vapor on the operation of the light-emitting device 300. Exemplarily, the third encapsulation layer 430 can be prepared by a chemical vapor deposition process.

[0137] In some optional embodiments, the display panel 10 may further include a dam structure 500 disposed on one side of the substrate 100 , the dam structure 500 is spaced apart from the planarization layer 160 , and the dam structure 500 is located between the planarization layer 160 and the aperture area NA2 .

[0138] Optionally, the dam structure 500 may be disposed around the aperture area NA2.

[0139] Optionally, the ventilation openings 202 may all be located on a side of the dam structure 500 facing the display area AA.

[0140] In these optional embodiments, the dam structure 500 can be used to block the flow of material of the encapsulation layer 400. For example, the dam structure 500 can be used to block the flow of material of the second encapsulation layer 420, so that the material of at least part of the encapsulation layer 400 located on the side of the dam structure 500 facing the display area AA is not easy to flow toward the hole area NA2, thereby better improving the structural reliability of the display panel 10.

[0141] In some optional embodiments, the portion of the defining structure 200 may extend to a side of the dam structure 500 facing away from the substrate 100 .

[0142] Optionally, part of the pixel defining portion 220 may extend to a side of the dam structure 500 facing away from the substrate 100 .

[0143] In these optional embodiments, by providing a portion of the defining structure 200 extending to the side of the dam structure 500 facing away from the substrate 100, the defining structure 200 can have a larger size, so that the defining structure 200 located in the transition area NA1 can also be used for packaging. For example, the pixel defining portion 220 located in the transition area NA1, whose material includes inorganic material, can also be used for packaging, thereby improving the packaging effect of the display panel.

[0144] Please refer to Figures 1 to 6 The embodiment of the first aspect of the present application further provides a display panel 10, the display panel 10 having a display area AA and a non-display area NA, the display panel 10 comprising: a substrate 100, comprising a substrate 110, a planarization layer 160 arranged on one side of the substrate 110, and a signal line 153 arranged between the substrate 110 and the planarization layer 160, at least part of the signal line 153 is located in the non-display area NA; a limiting structure 200, arranged on one side of the substrate 100 and having a limiting opening 201 located in the display area AA and a ventilation opening 202 located in the non-display area NA; a light-emitting device 300, arranged in the limiting opening 201; the projection of the ventilation opening 202 on the substrate 110 at least partially overlaps with the orthographic projection of the signal line 153 in the non-display area NA on the substrate 110.

[0145] In a display panel 10 provided in an embodiment of the present application, the display panel 10 has a display area AA and a non-display area NA, and the display panel 10 includes a substrate 100, a limiting structure 200, and a light-emitting device 300. The limiting structure 200 is disposed on one side of the substrate 100 and is provided with a limiting opening 201 located in the display area AA, and the limiting structure 200 can be used to divide the sub-pixels of the display panel 10. The light-emitting device 300 is disposed in the limiting opening 201 in the display area AA, and the light-emitting device 300 can realize the light-emitting display of the display area AA in the display panel 10.

[0146] The limiting structure 200 is further provided with a ventilation opening 202 located in the non-display area NA. The ventilation opening 202 can be used to discharge the gas generated by the film layer below during the preparation process of the display panel 10 , which can improve the structural reliability of the display panel 10 .

[0147] At least part of the signal wiring 153 is located in the non-display area NA, which can facilitate the arrangement of the signal wiring 153. By setting the projection of the ventilation opening 202 on the substrate 110 to at least partially overlap with the orthographic projection of the signal wiring 153 in the non-display area NA on the substrate 110, when the ventilation openings 202 are arranged in the non-display area NA, the ventilation openings 202 with a relatively dense or larger size can be arranged, thereby better improving the structural reliability of the display panel 10.

[0148] Optionally, a display panel 10 provided in an embodiment of the first aspect of the present application may be the display panel 10 in any of the aforementioned embodiments. Therefore, a display panel 10 provided in an embodiment of the present application may have the structure and beneficial effects of the display panel 10 in any of the aforementioned embodiments, and the present application will not elaborate on it.

[0149] For example, the substrate 100 may be the substrate 100 in any of the aforementioned embodiments, the substrate 100 may include the planarization layer 160 in any of the aforementioned embodiments, and the venting opening 202 may be used to discharge gas in the planarization layer 160 during the preparation process of the display panel 10. For example, the light emitting device 300 may be the light emitting device 300 in any of the aforementioned embodiments, and the light emitting device 300 may include the first electrode 310, the light emitting unit 320 and the second electrode 330 in any of the aforementioned embodiments. Optionally, the limiting structure 200 may be the limiting structure 200 in any of the aforementioned embodiments, and the limiting structure 200 may be provided with the limiting opening 201 and the venting opening 202 in any of the aforementioned embodiments. The limiting structure 200 may include the pixel limiting portion 220 and the isolation structure 210 in any of the aforementioned embodiments, and the isolation structure 210 may include the first isolation portion 211, the second isolation portion 212 and the conductive portion 213 in any of the aforementioned embodiments. The isolation structure 210 may only be provided with the limiting opening 201 in any of the aforementioned embodiments, or the isolation structure 210 may be provided with the limiting opening 201 and the ventilation opening 202 in any of the aforementioned embodiments, which is not specifically limited in the present application.

[0150] The embodiment of the second aspect of the present application provides a display device, and the display device includes the display panel 10 of any of the above-mentioned embodiments. Since the display device provided by the embodiment of the second aspect of the present application includes the display panel 10 of any of the above-mentioned first aspects, the display device provided by the embodiment of the second aspect of the present application has the beneficial effects of the display panel 10 of any of the above-mentioned first aspects, which will not be repeated here.

[0151] The display device in the embodiments of the present application includes but is not limited to mobile phones, personal digital assistants (PDAs), tablet computers, e-books, televisions, access control systems, smart landline phones, consoles, and other devices with display functions.

[0152] Optionally, at least part of the non-display area NA of the display panel 10 may be used as a functional area of ​​the display panel 10. For example, the non-display area NA may include a hole area NA2, and the display panel 10 may be provided with a functional hole H in the hole area NA2. The display device may include a photosensitive component for sensing light disposed in correspondence with the hole area NA2, for example, the display device may include a photosensitive component disposed at the functional hole H.

[0153] Optionally, there are multiple ways to set the type of photosensitive components. For example, the photosensitive component may include at least one of components capable of sensing light, such as a distance sensor, a camera, an under-screen fingerprint recognition module, and an infrared light-emitting diode proximity sensor.

[0154] According to the embodiments of the present application as above, these embodiments do not describe all the details in detail, nor do they limit the invention to specific embodiments. Obviously, many modifications and changes can be made based on the above description. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that those skilled in the art can make good use of the present application and the modifications based on the present application. The present application is only limited by the claims and their full scope and equivalents.

Claims

1. A display panel, characterized in that: The display panel has a display area and a non-display area, and the display panel includes: substrate; A limiting structure is disposed on one side of the substrate and is provided with a limiting opening located in the display area and a ventilation opening located in the non-display area; The light emitting device is arranged in the defined opening.

2. The display panel according to claim 1, characterized in that: The substrate comprises a substrate and a planarization layer disposed on one side of the substrate, the planarization layer extends from the display area to the non-display area, the limiting structure is located on a side of the planarization layer away from the substrate, and the air permeable opening exposes the planarization layer; Preferably, the material of the planarization layer includes organic material.

3. The display panel according to claim 2, characterized in that: The orthographic projection of the gas permeable opening on the substrate is located within the orthographic projection of the planarization layer on the substrate.

4. The display panel according to claim 2, characterized in that: The planarization layer includes a first planarization portion and a second planarization portion located in the non-display area, the air permeable opening exposes the first planarization portion, the second planarization portion is located between the limiting structure and the substrate, a surface of the first planarization portion facing away from the substrate has a first distance from the substrate, a surface of the second planarization portion facing away from the substrate has a second distance from the substrate, and the second distance is greater than the first distance.

5. The display panel according to claim 2, characterized in that: The non-display area includes a hole area and a transition area arranged between the hole area and the display area, the planarization layer extends from the display area to the transition area, and the planarization layer is spaced apart from the hole area; Preferably, the air permeable opening is located in the transition zone, and there are multiple air permeable openings, which are spaced apart around the hole zone.

6. The display panel according to claim 5, characterized in that: The display panel also includes a dam structure arranged on one side of the substrate, the dam structure is spaced apart from the planarization layer, and the dam structure is located between the planarization layer and the hole area; preferably, part of the limiting structure extends to a side of the dam structure away from the substrate.

7. The display panel according to any one of claims 1 to 6, characterized in that: The limiting structure includes a pixel limiting portion, and the air permeable opening is arranged through the pixel limiting portion. And / or, the limiting structure includes an isolation structure, the ventilation opening is arranged through the isolation structure, the isolation structure includes a first isolation portion and a second isolation portion located at a side of the first isolation portion away from the substrate, and the second isolation portion is arranged toward the limiting opening and / or the ventilation opening and protrudes from the first isolation portion; Preferably, the material of the pixel defining portion includes an inorganic material.

8. The display panel according to claim 7, characterized in that: The defining structure includes a pixel defining portion and an isolation structure, the non-display area includes a hole area and a transition area arranged between the hole area and the display area, the isolation structure and the pixel defining portion extend from the display area to the transition area, the edge of the isolation structure close to the hole area has a first distance from the side wall of the hole area, the edge of the pixel defining portion close to the hole area has a second distance from the side wall of the hole area, and the first distance is greater than the second distance.

9. The display panel according to claim 8, characterized in that: The isolation structure is arranged on a side of the pixel defining portion away from the substrate, and the ventilation opening includes a first ventilation opening that passes through the isolation structure and the pixel defining portion and a second ventilation opening that only passes through the pixel defining portion, and the second ventilation opening is located on a side of the isolation structure away from the display area.

10. The display panel according to claim 9, characterized in that: The substrate includes a substrate, a planarization layer arranged on one side of the substrate, and a signal routing arranged between the substrate and the planarization layer, at least part of the signal routing is located in the non-display area, the orthographic projection of the first air opening on the substrate at least partially overlaps with the orthographic projection of the signal routing in the non-display area on the substrate, and / or the orthographic projection of the second air opening on the substrate does not overlap with the orthographic projection of the signal routing on the substrate.

11. The display panel according to claim 8, characterized in that: The display panel also includes a dam structure arranged on one side of the substrate, the dam structure is spaced apart from the planarization layer, and the dam structure is located between the planarization layer and the hole area, and part of the pixel defining portion extends to a side of the dam structure away from the substrate.

12. The display panel according to claim 7, characterized in that: The material of the isolation structure includes a conductive material, and in a direction away from the substrate, the light-emitting device includes a first electrode, a light-emitting unit, and a second electrode stacked in sequence, and the second electrode is connected to the isolation structure; Preferably, the isolation structure further comprises a conductive portion disposed on the side of the first isolation portion facing the substrate, the conductive portion protruding from the first isolation portion toward the limited opening and / or the air-permeable opening, and the second electrode is connected to the conductive portion.

13. A display panel, characterized in that: The display panel has a display area and a non-display area, and the display panel includes: A substrate, comprising a substrate, a planarization layer disposed on one side of the substrate, and a signal wiring disposed between the substrate and the planarization layer, at least part of the signal wiring being located in the non-display area; A limiting structure is disposed on one side of the substrate and is provided with a limiting opening located in the display area and a ventilation opening located in the non-display area; A light emitting device is disposed in the defined opening; The projection of the ventilation opening on the substrate at least partially overlaps with the orthographic projection of the signal wiring in the non-display area on the substrate.

14. The display panel according to claim 13, characterized in that: The planarization layer extends from the display area to the non-display area, the limiting structure is located on a side of the planarization layer away from the substrate, and the air permeable opening exposes a portion of the planarization layer; Preferably, the orthographic projection of the vent opening on the substrate is located within the orthographic projection of the planarization layer on the substrate; Preferably, the material of the planarization layer includes an organic material; Preferably, the non-display area includes a hole area and a transition area arranged between the hole area and the display area, the planarization layer extends from the display area to the transition area, and the planarization layer is spaced apart from the hole area; Preferably, the ventilation opening is located in the transition area, the number of the ventilation opening is multiple, and the multiple ventilation openings are arranged at intervals around the circumference of the hole area; Preferably, the display panel further comprises a dam structure arranged on one side of the substrate, the dam structure is spaced apart from the planarization layer, and the dam structure is located between the planarization layer and the hole area.

15. The display panel according to any one of claims 13 or 14, characterized in that: The limiting structure includes a pixel limiting portion, and the air permeable opening is arranged through the pixel limiting portion. And / or, the limiting structure includes an isolation structure, the ventilation opening is arranged through the isolation structure, the isolation structure includes a first isolation portion and a second isolation portion located at a side of the first isolation portion away from the substrate, and the second isolation portion is arranged toward the limiting opening and / or the ventilation opening and protrudes from the first isolation portion; Preferably, the material of the pixel defining portion includes an inorganic material.

16. The display panel according to claim 13, characterized in that: The orthographic projection of part of the vents on the substrate at least partially overlaps with the orthographic projection of the signal wiring in the non-display area on the substrate, and / or the orthographic projection of part of the vents on the substrate does not overlap with the orthographic projection of the signal wiring on the substrate.

17. A display device, characterized in that: Comprising the display panel as claimed in any one of claims 1 to 16.

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