Display panel and display device

Abstract

This application provides a display panel and a display device. The display panel includes a display area, a light-transmitting area, and a transition area. The display area surrounds the transition area, and the transition area surrounds the light-transmitting area. A substrate is also present. A first insulating layer is disposed on one side of the substrate, and includes a groove disposed in the transition area and surrounding the light-transmitting area. A first metal layer is disposed on the side of the first insulating layer away from the substrate, and includes a first opening disposed in the transition area and corresponding to the groove. The first opening communicates with the corresponding groove, and the opening size of the first opening is smaller than the opening size of the corresponding groove. A second insulating layer is disposed on the side of the first metal layer away from the substrate, and includes a second opening disposed in the transition area and corresponding to the first opening. The second opening communicates with the corresponding first opening. A light-emitting functional layer is disposed on the side of the second insulating layer away from the substrate, and the light-emitting functional layer is disconnected at the first opening and the groove in the transition area.

Description

Technical Field

[0001] This application relates to the field of displays, and more particularly to a display panel and a display device. Background Technology

[0002] Organic light-emitting diode (OLED) displays offer advantages over liquid crystal displays (LCDs) such as higher contrast, thinner profiles, and wider viewing angles. OLED panel manufacturing requires laser cutting (O-CUT) of the display area. However, the organic light-emitting material at the cut edges can easily become a conduit for water and oxygen, leading to encapsulation failures. Summary of the Invention

[0003] This application provides a display panel and a display device that can solve the problem of display panel encapsulation failure caused by water and oxygen intrusion through the cut edge area.

[0004] This application embodiment provides a display panel, the display panel including a display area, a light-transmitting area, and a transition area, the display area surrounding the transition area, and the transition area surrounding the light-transmitting area; the display panel includes:

[0005] Substrate;

[0006] A first insulating layer is disposed on one side of the substrate, the first insulating layer including a groove disposed in the transition region and surrounding the light-transmitting region;

[0007] A first metal layer is disposed on the side of the first insulating layer away from the substrate. The first metal layer includes a first opening disposed in the transition region and corresponding to the groove. The first opening communicates with the corresponding groove, and the opening size of the first opening is smaller than the opening size of the corresponding groove.

[0008] A second insulating layer is disposed on the side of the first metal layer away from the substrate. The second insulating layer includes a second opening disposed in the transition region and corresponding to the first opening. The second opening communicates with the corresponding first opening.

[0009] A light-emitting functional layer is disposed on the side of the second insulating layer away from the substrate, and the light-emitting functional layer is disconnected at the first opening and the groove in the transition region.

[0010] Optionally, the opening size of the second opening is larger than the opening size of the corresponding first opening.

[0011] Optionally, the first insulating layer includes:

[0012] A first insulator layer is disposed on one side of the substrate.

[0013] The second insulator layer is disposed on the side of the first insulating layer away from the substrate.

[0014] The display panel also includes:

[0015] A semiconductor layer is disposed between the first insulator layer and the second insulator sublayer, the semiconductor layer including a plurality of active portions disposed in the display area;

[0016] The first metal layer includes: a gate disposed in the display area and corresponding to the active portion, and a first disconnection portion disposed in the transition area, wherein the first disconnection portion includes the first opening.

[0017] Optionally, the groove is disposed in the second insulator layer, and the depth of the groove is less than or equal to the thickness of the second insulator layer;

[0018] or,

[0019] The groove penetrates the second insulator layer and extends to the first insulator layer, and the depth of the groove is greater than the thickness of the second insulator layer.

[0020] Optionally, the groove does not extend to the substrate.

[0021] Optionally, the display panel further includes:

[0022] A second metal layer is disposed between the second insulating layer and the light-emitting functional layer. The second metal layer includes a third opening disposed in the transition region and corresponding to the second opening. The third opening is connected to the second opening, and the opening size of the third opening is larger than the opening size of the corresponding first opening.

[0023] The light-emitting functional layer also covers the sidewalls of the third opening and the second opening.

[0024] Optionally, the opening size of the third opening is larger than the opening size of the corresponding second opening.

[0025] Optionally, the second metal layer includes: a source and a drain disposed in the display area, and a second disconnection portion disposed in the transition area, the second disconnection portion including a third opening.

[0026] The source and the drain are electrically connected to the corresponding active part.

[0027] Optionally, at least one side wall of the second disconnected portion is provided with a recessed structure, and the light-emitting functional layer is disconnected at the second disconnected portion.

[0028] This application embodiment also provides a display device, including:

[0029] Display panel as described in any of the above;

[0030] A sensor is disposed in the light-transmitting area.

[0031] The beneficial effects of this application are as follows: The display panel provided in this application embodiment includes a display area, a transition area, and a light-transmitting area. The display area surrounds the transition area, and the transition area surrounds the light-transmitting area. The display panel includes a substrate, a first insulating layer, a first metal layer, a second insulating layer, and a light-emitting functional layer. The first insulating layer is disposed on one side of the substrate and includes a groove disposed in the transition area and surrounding the light-transmitting area. The first metal layer is disposed on the side of the first insulating layer away from the substrate and includes a first opening disposed in the transition area and corresponding to the groove. The first opening communicates with the corresponding groove, and the opening size of the first opening is smaller than the opening size of the corresponding groove. The second insulating layer is disposed on the side of the first metal layer away from the substrate and includes a second opening disposed in the transition area and corresponding to the first opening. The second opening communicates with the corresponding first opening. The light-emitting functional layer is disposed on the side of the second insulating layer away from the substrate and is disconnected at the first opening and the groove in the transition area. By disconnecting the light-emitting functional layer at the first opening and the groove in the transition area, this application embodiment can prevent water and oxygen from intruding through the light-emitting functional layer, thereby solving the problem of product packaging failure caused by water and oxygen intruding through the cutting edge area. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.

[0034] Figure 1 This is a schematic diagram of the structure of the display panel provided in an embodiment of this application.

[0035] Figure 2 for Figure 1 The diagram shows a cross-sectional view of the display panel along the AA direction. Detailed Implementation

[0036] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0037] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] Existing OLED display panels require laser cutting (O-CUT) of the display area during the manufacturing process. The organic light-emitting material at the edge of the cut can easily become a channel for the transport of water and oxygen from the outside. Water and oxygen can invade through the cut edge area, causing product encapsulation failure.

[0039] Therefore, in order to solve the above problems, this application proposes a display panel and a display device. The present application will be further described below with reference to the accompanying drawings and embodiments.

[0040] Please see Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of the display panel provided in an embodiment of this application. Figure 2 for Figure 1The diagram shows a cross-sectional view of the display panel along the AA direction. This application provides a display panel 100, which includes a display area 1, a light-transmitting area 3, and a transition area 2. The display area 1 surrounds the transition area 2, and the transition area 2 surrounds the light-transmitting area 3. The display panel 100 includes a substrate 10, a first insulating layer 20, a first metal layer 40, a second insulating layer 60, and a light-emitting functional layer 30. The first insulating layer 20 is disposed on one side of the substrate 10 and includes a groove 50 disposed in the transition area 2 and surrounding the light-transmitting area 3. A first metal layer 40 is disposed on the side of the first insulating layer 20 away from the substrate 10. The first metal layer 40 includes a first opening 420 disposed in the transition region 2 and corresponding to the groove 50. The first opening 420 communicates with the corresponding groove 50, and the opening size of the first opening 420 is smaller than the opening size of the corresponding groove 50. A second insulating layer 60 is disposed on the side of the first metal layer 40 away from the substrate 10. The second insulating layer 60 includes a second opening 610 disposed in the transition region 2 and corresponding to the first opening 420. The second opening 610 communicates with the corresponding first opening 420. A light-emitting functional layer 30 is disposed on the side of the second insulating layer 60 away from the substrate 10. The light-emitting functional layer 30 is disconnected at the first opening 420 and the groove 50 in the transition region 2. This embodiment of the application cuts off the path for water and oxygen to enter the display area 1 by disconnecting the light-emitting functional layer 30 at the first opening 420 and the groove 50 in the transition area. This prevents water and oxygen from entering the display area 1 from the opening area through the transition area 2, thus preventing water and oxygen from invading through the light-emitting functional layer 30. This ensures that the structural layers in the display area 1 are not corroded by water and oxygen, guaranteeing normal display of the display panel 100 and stable performance of the display panel 100. This solves the problem of product packaging failure caused by water and oxygen invading through the cutting edge area. At the same time, the film layer setting in the transition area 2 is simple, and the water and oxygen blocking method is simple.

[0041] It should be noted that the transition zone 2 is the non-display zone 1 near the cutting channel, that is, the first opening 420 and the groove 50 on the first metal layer 40 are disposed in the non-display zone 1 near the cutting channel. In some embodiments, in order to better block water and oxygen, the first opening 420 and the groove 50 on the first metal layer 40 are also disposed in the light-transmitting zone 3.

[0042] The fact that the opening size of the first opening 420 is smaller than the opening size of the corresponding groove 50 can be understood as the diameter of the first opening 420 being smaller than the diameter of the corresponding groove 50, or it can be understood as the positive projection area of ​​the first opening 420 on the substrate 10 being smaller than the positive projection area of ​​the groove 50 on the substrate 10.

[0043] In some embodiments, the light-emitting functional layer 30 includes a first organic material layer 310 and a second organic material layer 320. The first organic material layer 310 is disposed on one side of the substrate 10 and in the transition region 2. The second organic material layer 320 is disposed on the side of the first metal layer 40 away from the substrate 10. In other embodiments, the light-emitting functional layer 30 may be an organic light-emitting material layer. The specific configuration can be adjusted according to actual conditions. This application uses the example of the light-emitting functional layer 30 including a first organic material layer 310 and a second organic material layer 320 for illustration, and should not be construed as a limitation.

[0044] Understandably, the first organic material layer 310 does not emit light.

[0045] The opening size of the second opening 610 is larger than the opening size of the corresponding first opening 420. This can be understood as the diameter of the second opening 610 being larger than the diameter of the corresponding first opening 420, or the projected area of ​​the second opening 610 on the substrate 10 being larger than the projected area of ​​the first opening 420 on the substrate 10. By setting the diameter of the second opening 610 to be larger than the diameter of the first opening 420, the projected areas of the second insulating layer 60 and the first organic material layer 310 on the substrate 10 do not overlap. This prevents the second organic material layer 320 deposited on the second insulating layer 60 from connecting with the first organic material layer 310 deposited on the substrate 10 during the evaporation of the organic material.

[0046] The first insulating layer 20 includes a first insulator layer 220 and a second insulator layer 210. The first insulator layer 220 is disposed on one side of the substrate 10, and the second insulator layer 210 is disposed on the side of the first insulator layer 220 away from the substrate 10.

[0047] In some embodiments, the groove 50 is disposed in the second insulator layer 210, and the depth of the groove 50 is less than or equal to the thickness of the second insulator layer 210. By disposing the groove 50 in the second insulator layer 210, it is possible to ensure that the light-emitting functional layer 30 is disconnected at the first opening 420 and the groove 50 in the transition region during fabrication, thereby preventing water and oxygen from invading through the light-emitting functional layer 30.

[0048] In some embodiments, the groove 50 penetrates the second insulator layer 210 and extends to the first insulator layer 220, and the depth of the groove 50 is greater than the thickness of the second insulator layer 210. By extending the groove 50 to the first insulator layer 220, the depth of the groove 50 is increased, and the distance between the bottom of the first metal layer 40 and the groove 50 is increased. This ensures that the first organic material layer 310 and the second organic material layer 320 are not connected during the evaporation of organic materials, thereby ensuring that the light-emitting functional layer 30 is disconnected at the first opening 420 and the groove 50 in the transition region, preventing water and oxygen from invading through the light-emitting functional layer 30.

[0049] It is understandable that the groove 50 does not extend to the substrate 10.

[0050] In some embodiments, the thickness of the second insulator layer 210 is greater than the thickness of the first organic material layer 310, which can further deepen the groove 50 and increase the height difference between the bottom of the first metal layer 40 and the groove 50. This ensures that the first organic material layer 310 and the second organic material layer 320 are separated at the groove 50 when the organic material is laid across the entire surface. This avoids the situation where the distance between the first metal layer 40 and the substrate 10 is too short due to the smaller thickness of the second insulator layer 210, which could lead to the first organic material layer 310 and the second organic material layer 320 connecting during organic material deposition. Furthermore, the orthographic projection of the first metal layer 40 on the substrate 10 does not coincide with the orthographic projection of the first organic material layer 310 on the substrate 10, thus increasing the opening of the groove 50. This ensures that the organic light-emitting material can only be deposited onto the first metal layer 40 and part of the substrate 10, and not into the groove 50, thereby ensuring that the first organic material layer 310 and the second organic material layer 320 do not connect.

[0051] In some embodiments, the material used in the fabrication of the second insulator layer 210 includes one or a combination of SiOx, SiNx, and Si(ON)x, specifically chosen according to actual conditions. The thickness of the second insulator layer 210 ranges from...

[0052] The display panel 100 further includes a semiconductor layer disposed between the first insulator layer and the second insulating sublayer. The semiconductor layer includes a plurality of active portions disposed in the display area 1. The first metal layer 40 includes a gate disposed in the display area 1 and corresponding to the active portions, and a first disconnection portion 410 disposed in the transition area 2. The first disconnection portion 410 includes a first opening 420. That is, the first disconnection portion 410 in the transition area 2 is disposed in the same layer as the gate in the display area 1, i.e., the first disconnection portion 410 and the gate in the display area 1 are fabricated by patterning the same metal layer, thereby reducing and simplifying the fabrication process.

[0053] In some embodiments, the first metal layer 40 includes a plurality of first disconnections 410 surrounding the light-transmitting area 3. The plurality of first disconnections 410 are arranged sequentially around each other, wherein each first disconnection 410 is provided with a first opening 420 and a groove 50. By providing a plurality of first disconnections 410, a good blocking effect on the water and oxygen propagation path can be ensured.

[0054] In this case, too few first disconnections 410 will result in poor packaging performance, while too many first disconnections 410 will lead to too many process problems. Therefore, in some embodiments, the number of multiple first disconnections 410 ranges from 3 to 30. The specific number needs to be set according to the actual situation, and no specific limit is set here.

[0055] It should be noted that the first break portion 410 provided in this application can be a continuous closed ring structure, or it can be multiple arc structures dispersed along the entire ring trajectory. The multiple first break portions 410 arranged sequentially around a central ring formed around the light-transmitting area 3, or the multiple first break portions 410 can be arranged with non-overlapping centers. The specific arrangement can be determined based on actual circumstances, and no specific limitations are made here.

[0056] In some embodiments, the process material of the first metal layer 40 includes one or a combination of Al, Cu, Mo, Ag, Pt, Fe, and ITO, specifically set according to actual conditions. The thickness of the first metal layer 40 ranges from [specific range missing].

[0057] In some embodiments, the substrate 10 may be a buffer layer, and the material used in the buffer layer may be one or a combination of SiOx, SiNx, and Si(ON)x, depending on the specific circumstances. The thickness of the substrate 10 may range from [specific range missing].

[0058] The display panel also includes a second metal layer 70, which is disposed between the second insulating layer 60 and the light-emitting functional layer 30. The second metal layer 70 includes a third opening disposed in the transition region 2 and corresponding to the second opening 610. The third opening 710 is connected to the second opening 610, and the opening size of the third opening 710 is larger than the opening size of the corresponding first opening 420. By providing a third opening 710 on the second metal layer 70 connected to the second opening 610 to expose the first organic material layer 310, the light-emitting functional layer 30 can be disconnected at the third opening 710. This avoids the situation where the light-emitting functional layer 30 is connected to the second insulating layer 60 during the evaporation of organic material due to the absence of an opening in the second metal layer 70.

[0059] The fact that the opening size of the third opening 710 is greater than the opening size of the corresponding first opening 420 can be understood as the diameter of the third opening 710 being greater than the diameter of the corresponding first opening 420, or it can be understood as the positive projection area of ​​the third opening 710 on the substrate 10 being greater than the positive projection area of ​​the first opening 420 on the substrate 10.

[0060] It is understandable that the opening size of the third opening 710 is larger than the opening size of the corresponding second opening 610. This can be understood as the diameter of the third opening 710 being larger than the diameter of the corresponding second opening 610, or the orthographic projection area of ​​the third opening 710 on the substrate 10 being larger than the orthographic projection area of ​​the second opening 610 on the substrate 10. By setting the opening size of the third opening 710 to be larger than the opening size of the second opening 610, the orthographic projection of the second metal layer 70 on the substrate 10 and the orthographic projection of the first organic material on the substrate 10 do not coincide. This avoids the situation where the second organic material layer 320 deposited on the second metal layer 70 connects with the first organic material layer 310 deposited on the substrate 10 during the evaporation of the organic material. Additionally, it facilitates the placement of the source and drain electrodes on the second metal layer 70, preventing the source and drain electrodes from being suspended.

[0061] Understandably, the light-emitting functional layer also covers the sidewalls of the third opening 710 and the second opening 610.

[0062] It should be noted that in some embodiments, the number of second insulating layers 60 and second metal layers 70 is not limited to one, and the side of the first metal layer 40 away from the substrate 10 is not limited to the second insulating layer 60 and the second metal layer 70; other layers may also be provided, without specific limitations here. Furthermore, the thicknesses of the second insulating layer 60 and the second metal layer 70 can be set according to actual conditions, without specific limitations here.

[0063] In some embodiments, the material used in the fabrication of the second insulating layer 60 includes one or a combination of SiOx, SiNx, and Si(ON)x, specifically chosen according to the actual situation. The thickness of the second insulating layer 60 ranges from [specific range missing].

[0064] In some embodiments, the process material of the second metal layer 70 includes one or a combination of SiOx, SiNx, and Si(ON)x, specifically configured according to actual conditions. The thickness of the second metal layer 70 ranges from...

[0065] The second metal layer 70 further includes: a source and a drain disposed in the display area 1, and a second disconnection portion disposed in the transition area. The second disconnection portion includes a third opening 710. The source and drain are electrically connected to their corresponding active portions to form a TFT. In some embodiments, the process materials of the source and drain are in the form of Ti / Al / Ti, Mo / Al / Mo, or ITO / Ag / ITO, depending on the specific circumstances. The thickness of the source and drain ranges from...

[0066] At least one sidewall of the second disconnection portion has a recessed structure, and the light-emitting functional layer is disconnected at the second disconnection portion. The second disconnection portion is constructed using an SD metal layer, which comprises three metal layers: Ti / Al / Ti. In some embodiments, the Al layer in the middle can be etched inward to form a sidewall recessed structure, so that the light-emitting functional layer can also be disconnected at this location.

[0067] In some embodiments, the display panel 100 may further include a pad layer of the array layer disposed on the side of the buffer layer away from the first insulating layer 20, for example: an organic material (PI1), an inorganic material such as silicon oxide (PB1), an organic material (PI2), and an inorganic material (PB2).

[0068] The specific process for manufacturing the display panel is as follows:

[0069] First, a substrate 10 is provided, on which a display area 1, a transition area 2, and a light-transmitting area 3 are disposed, with the display area 1 surrounding the transition area 2 and the transition area 2 surrounding the light-transmitting area 3. In some embodiments, the substrate 10 may be a buffer layer.

[0070] Then, a first insulating layer 20 is provided on one side of the substrate 10 located in the transition region 2. The first insulating layer 20 includes a groove 50 provided in the transition region 2 and surrounding the light-transmitting region 3.

[0071] Then, a first metal layer 40 is disposed on the side of the first insulating layer 20 away from the substrate 10. One end of the first metal layer 40 protrudes from the first insulating layer 20. The first metal layer 40 includes a first opening 420 disposed in the transition region 2 and corresponding to the groove 50. The first opening 420 communicates with the corresponding groove 50, and the opening size of the first opening 420 is smaller than the opening size of the corresponding groove 50.

[0072] In some embodiments, an etching solution is used to etch the first insulating layer 20 and the first metal layer 40 to form a groove 50 and a first opening 420. The etching rate of the etching solution on the first insulating layer 20 is greater than the etching rate on the first metal layer 40. That is, the etching rate of the etching solution on the metal layer of GE1 is different from the etching rate of the etching solution on the inorganic layer of GI1, thereby causing one end of the first metal layer 40 to protrude from the first insulating layer 20, thus forming the groove 50 between the first insulating layer 20 and the first metal layer 40.

[0073] In some embodiments, the etching solution may be a mixed solution comprising hydrofluoric acid and ammonium fluoride.

[0074] In some other embodiments, the fabrication method further includes the following steps prior to etching to form the first opening 420 and the groove 50:

[0075] A second insulating layer 60 is disposed on the side of the first insulating layer 20 and the first metal layer 40 away from the substrate 10.

[0076] A second metal layer 70 is disposed on the side of the second insulating layer 60 away from the substrate 10.

[0077] After the second insulating layer 60 and the second metal layer 70 are fabricated, when the first opening 420 and the groove 50 are etched with an etching solution, the etching solution also etches the second insulating layer 60 and the second metal layer 70 to form the second opening 610 and the third opening 710 respectively. The first opening 420, the second opening 610 and the third opening 710 are connected.

[0078] It should be noted that in some embodiments, since the etching solution starts etching from the upper second metal layer 70 to the lower first metal layer 40, there is more etching solution on the upper layer, resulting in more horizontal etching on the upper layer and less horizontal etching on the lower layer. As a result, the diameter of the first opening 420 is smaller than the diameter of the second opening 610, and the diameter of the second opening 610 is smaller than the diameter of the third opening 710. This facilitates the placement of the source and drain electrodes on the second metal layer 70, so that the source and drain electrodes are not suspended.

[0079] After setting the first opening 420 and the groove 50, organic material is vapor-deposited to form a first organic material layer 310 on one side of the substrate 10, and a second organic material layer 320 on the side of the first metal layer 40 away from the substrate 10. The first organic material layer 310 and the second organic material layer 320 are separated by the groove 50 and the first opening 420, thereby cutting off the path for water and oxygen to enter the display area 1. This prevents water and oxygen from entering the display area 1 from the opening area through the transition area 2, preventing water and oxygen from invading through the organic layer. This ensures that the structural layers in the display area 1 are not corroded by water and oxygen, ensuring normal display of the display panel 100 and stable performance of the display panel 100. This solves the problem of product packaging failure caused by water and oxygen invading through the cutting edge area. At the same time, the film layer setting in the transition area 2 is simple, and the water and oxygen blocking method is simple.

[0080] This application embodiment also provides a display device, including the display panel 100 described in any of the above claims, and also includes a sensor disposed in the light-transmitting area 3.

[0081] The display panel and display device provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A display panel, characterized by, The display panel comprises a display area, a light-transmitting area and a transition area, the display area surrounds the transition area, and the transition area surrounds the light-transmitting area; the display panel comprises: a substrate substrate; a first insulating layer arranged on one side of the substrate substrate, the first insulating layer comprising a groove arranged in the transition area and surrounding the light-transmitting area, the first insulating layer comprising: a first insulating sublayer arranged on one side of the substrate substrate; a second insulating sublayer arranged on one side of the first insulating layer sublayer away from the substrate substrate; The display panel further comprises: a semiconductor layer arranged between the first insulating sublayer and the second insulating layer sublayer, the semiconductor layer comprising a plurality of active parts arranged in the display area; a first metal layer arranged on one side of the first insulating layer away from the substrate substrate, the first metal layer comprising a first opening arranged in the transition area and corresponding to the groove, the first opening being in communication with the corresponding groove, and the opening size of the first opening being smaller than the opening size of the corresponding groove, the first metal layer comprising a gate electrode arranged in the display area and corresponding to the active part, and a first disconnected part arranged in the transition area, the first disconnected part comprising the first opening; a second insulating layer arranged on one side of the first metal layer away from the substrate substrate, the second insulating layer comprising a second opening arranged in the transition area and corresponding to the first opening, the second opening being in communication with the corresponding first opening; a second metal layer arranged on one side of the second insulating layer away from the substrate substrate and between the second insulating layer and the light-emitting functional layer, the second metal layer comprising a third opening arranged in the transition area and corresponding to the second opening, the third opening being in communication with the second opening, the opening size of the third opening being greater than the opening size of the corresponding second opening, the second metal layer further comprising a second disconnected part arranged in the transition area, the second disconnected part comprising the third opening, and the sidewall of at least one side of the second disconnected part being provided with a recess structure; a light-emitting functional layer arranged on one side of the second insulating layer away from the substrate substrate, the light-emitting functional layer being arranged discontinuously at the first opening and the groove in the transition area, the light-emitting functional layer further covering the sidewall of the third opening and the second opening, and the light-emitting functional layer being arranged discontinuously at the second disconnected part.

2. The display panel of claim 1, wherein, The opening size of the second opening is greater than the opening size of the corresponding first opening.

3. The display panel of claim 1, wherein, The groove is arranged in the second insulating sublayer, and the depth of the groove is less than or equal to the thickness of the second insulating sublayer; Or, The groove extends through the second insulating sublayer and extends to the first insulating sublayer, and the depth of the groove is greater than the thickness of the second insulating sublayer.

4. The display panel of claim 3, wherein, The groove does not extend to the substrate substrate.

5. The display panel of claim 3, wherein, The opening size of the third opening is greater than the opening size of the corresponding first opening.

6. The display panel of claim 1, wherein, The second metal layer comprises: a source electrode and a drain electrode arranged in the display area, the source electrode and the drain electrode being electrically connected to the corresponding active part.

7. A display device, characterized by comprising: Comprise: The display panel of any one of claims 1-6; A sensor is disposed in the light-transmissive region.

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