Display panel and electronic device

Abstract

The application provides a display panel and an electronic device. The display panel comprises a functional area, a display area close to the functional area, and a first transition area between the functional area and the display area. The display panel further comprises an inorganic layer arranged on a substrate, and a plurality of dams arranged on the inorganic layer and located in the first transition area. The inorganic layer is formed with a plurality of grooves in the first transition area. Each groove penetrates the inorganic layer and extends into the substrate. There is at least one groove between each adjacent two dams. By dispersing the plurality of dams on one side of the grooves, the space originally used for arranging the dams can be saved, so that the width of the first transition area can be reduced, and the width between the display area and the functional area can be reduced, thereby alleviating the problem that the frame width of the existing display device is wide.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a display panel and an electronic device. BACKGROUND

[0002] With the development of display technology, the existing display devices are designed towards high screen ratio to obtain full screen. The notch camera design is one of the methods to improve the screen ratio, in which a notch area is designed on the screen for placing the front camera. The notch area edge needs to accommodate multiple signal lines, packaging structures and the like, so that the frame width of the notch area is relatively wide, and the wide frame of the notch area will cause a circle of black edges around the camera, affecting the visual effect. SUMMARY

[0003] The present application provides a display panel and an electronic device to alleviate the technical problem of the wide frame width of the notch area of the existing display device.

[0004] To solve the above problems, the technical scheme provided by the present application is as follows:

[0005] The present application provides a display panel, which comprises a functional area, a display area close to the functional area, and a first transition area between the functional area and the display area; the display panel further comprises:

[0006] a substrate;

[0007] an inorganic layer arranged on one side of the substrate, and in the first transition area, the inorganic layer is formed with a plurality of grooves, each of the grooves penetrates through the inorganic layer and extends into the substrate;

[0008] a plurality of dams located in the first transition area and arranged on the side of the inorganic layer away from the substrate;

[0009] wherein, between two adjacent grooves, there is a first interval, and the width of each adjacent first interval is equal, and between two adjacent dams, there is at least one groove, and the width of each dam is equal to or less than the width of the first interval.

[0010] In the display panel provided by the present application, the plurality of grooves comprises a first groove and at least two second grooves, the first groove is arranged close to the display area, and the second groove is located on the side of the first groove away from the display area;

[0011] One of the dams is located on the side of the first groove close to the display area, and the remaining dams are located on the side of the first groove away from the display area.

[0012] In the display panel provided by the embodiment of the present application, each two adjacent second grooves have one dam.

[0013] In the display panel provided by the embodiment of the present application, each groove comprises a first opening and a second opening which are mutually through, the first opening penetrates the inorganic layer, and the second opening is located in the substrate, and the width of the first opening close to the substrate side is smaller than the width of the second opening close to the inorganic layer side.

[0014] In the display panel provided by the embodiment of the present application, each two adjacent dams have two grooves.

[0015] In the display panel provided by the embodiment of the present application, the display panel further comprises:

[0016] a first stack layer arranged on a side of the inorganic layer away from the substrate;

[0017] a second stack layer arranged on a side of the first stack layer away from the inorganic layer;

[0018] The second stack layer comprises a first planarization layer and a pixel definition layer which are arranged in a stack, the pixel definition layer is located on a side of the first planarization layer away from the first stack layer, in the first transition area, the first planarization layer is formed with a first protrusion, the pixel definition layer covers the first protrusion, and the first protrusion and the pixel definition layer covering the first protrusion form the dam.

[0019] In the display panel provided by the embodiment of the present application, the second stack layer further comprises a barrier layer located on a side of the pixel definition layer away from the first planarization layer, in the first transition area, the barrier layer covers the pixel definition layer on the first protrusion, and the dam further comprises the barrier layer arranged corresponding to the first protrusion.

[0020] In the display panel provided by the embodiment of the present application, the display panel further comprises a second transition area between the first transition area and the display area, the first stack layer and the second stack layer both extend from the display area to the second transition area, in the second transition area, the coverage area of the pixel definition layer is smaller than the coverage area of the first planarization layer.

[0021] In the display panel provided by the embodiment of the present application, the second stack further comprises a second planarization layer, the first planarization layer is located on a side of the second planarization layer away from the first stack, in the display area, the display panel further comprises a plurality of signal lines and a plurality of signal transfer lines in different layers from the signal lines, the plurality of signal transfer lines are arranged on the second planarization layer, the signal lines are arranged in the first stack and / or the second stack, and the signal transfer lines are electrically connected with the corresponding signal lines.

[0022] The embodiment of the present application further provides an electronic device comprising a shell and the display panel of any one of the foregoing embodiments, wherein the shell is formed with a receiving cavity, and the display panel is assembled in the receiving cavity.

[0023] The display panel and the electronic device provided by the present application have the following beneficial effects: in the display panel and the electronic device provided by the present application, a plurality of dams are arranged in the first transition area, and at least one groove is arranged between two adjacent dams, the plurality of dams are arranged on one side of the groove, so that the space originally occupied by the dam can be saved, the width of the first transition area can be reduced, and the width between the display area and the function area can be reduced, thereby solving the problem of a wide frame width of the notch area of the existing display device. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0025] Figure 1 It is a top view structural schematic diagram of the existing display device.

[0026] Figure 2 It is a top view structural schematic diagram of the display panel provided by the embodiment of the present application.

[0027] Figure 3 It is a sectional view structural schematic diagram of the display panel along the A-A' direction. Figure 2

[0028] Figure 4 It is a detail structural schematic diagram of the display area of the display panel provided by the embodiment of the present application.

[0029] Figure 5 It is a detail structural schematic diagram of the groove and the dam provided by the embodiment of the present application.

[0030] Figure 6 It is a sectional view structural schematic diagram of the display panel provided by the embodiment of the present application.​

[0031] Figure 7 Another schematic view of a display panel according to an embodiment of the present application is shown.

[0032] Figure 8 Another schematic view of a display panel according to an embodiment of the present application is shown.

[0033] Figure 9 Another schematic view of a dam according to an embodiment of the present application is shown.

[0034] Figure 10 A schematic view of a cross-sectional structure of an electronic device according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0035] The following description of the embodiments is provided as an example to illustrate particular embodiments that can be implemented by the present application. The directional terms mentioned in the present application, such as [up], [down], [front], [back], [left], [right], [inward], [outward], [lateral] and the like, are only the directions of the accompanying drawings. Therefore, the directional terms used are used to illustrate and understand the present application, and not to limit the present application. In the drawings, similar elements are denoted by the same reference numerals. In the drawings, the thicknesses of some layers and regions are exaggerated for clear understanding and ease of description. That is, the size and thickness of each component shown in the drawings are arbitrarily shown, but the present application is not limited thereto.

[0036] In view of the problem of the wide bezel width of the existing display device, the inventors of the present application have found that Figure 1 , Figure 1 A schematic view of a top view structure of an existing display device is shown. The display area AA' and the cutout area HA' of the display device are provided with a winding area TA1' close to the display area AA' and an encapsulation area TA2' between the winding area TA1' and the cutout area HA'. A plurality of signal lines, such as data lines Data, are provided in the winding area TA1'. The encapsulation area TA2' is provided with an encapsulation structure, such as a dam Dam. The width of the dam Dam is relatively wide, which occupies a relatively large space of the encapsulation area TA2'. The structure design of the winding area TA1' and the encapsulation area TA2' makes the bezel of the cutout area HA' relatively wide.

[0037] To solve the problem of the wide bezel of the existing display device, the inventors of the present application propose a display panel and an electronic device:

[0038] Please refer to Figures 2 to 5 , Figure 2 A schematic view of a top view structure of a display panel according to an embodiment of the present application is shown, Figure 3 is providedFigure 2 A cross-sectional structure diagram of a display panel along the A-A' direction, Figure 4 A detailed structure diagram of a display area of a display panel provided by an embodiment of the present application, Figure 5 A detailed structure diagram of a groove and a dam provided by an embodiment of the present application. The display panel 100 includes a functional area HA, a display area AA close to the functional area HA, and a first transition area TA1 and a second transition area TA2 between the functional area HA and the display area AA, wherein the first transition area TA1 is located on a side of the second transition area TA2 away from the display area AA.

[0039] The display area AA is used for displaying a picture, and the functional area HA can be located in any area of the display panel 100, such as the middle area or the edge area of the display panel 100. The functional area HA is provided with a through hole penetrating through each film layer of the display panel 100, and functional elements such as earpieces, cameras, various sensors, etc. can be placed in the through hole to realize the functions of under-screen camera and under-screen fingerprint, thereby improving the screen ratio of the display panel 100.

[0040] The second transition area TA2 and the first transition area TA1 are located between the functional area HA and the display area AA. The second transition area TA2 is used to place signal lines blocked by the functional area HA, such as data lines, power lines, etc. The first transition area TA1 is used to set a packaging structure to avoid affecting the packaging effectiveness of the display panel 100 due to the setting of the functional area HA. When the functional area HA is located in the middle area of the display panel 100, the first transition area TA1 surrounds the functional area HA. When the functional area HA is located in the edge area of the display panel 100, the first transition area TA1 semi-surrounds the functional area HA.

[0041] Specifically, referring to Figure 3 , the display panel 100 further includes a substrate 10, an inorganic layer 20 provided on one side of the substrate 10, a first stack 30 provided on a side of the inorganic layer 20 away from the substrate 10, a second stack 40 provided on a side of the first stack 30 away from the inorganic layer 20, and a plurality of dams 50. The second stack 40 extends from the display area AA to the second transition area TA2 and the first transition area TA1, and a plurality of the dams 50 are located on the inorganic layer 20 in the first transition area TA1.

[0042] In the first transition area TA1, the inorganic layer 20 is formed with a plurality of grooves 21, each of which penetrates the inorganic layer 20 and extends into the substrate 10, and at least one of the grooves 21 is between two adjacent dams 50. The first stack 30 and the second stack 40 both extend from the display area AA to the second transition area TA2, that is, the first stack 30 and the second stack 40 are arranged corresponding to the display area AA and the second transition area TA2, and part of the second stack 40 is also arranged in the first transition area TA1 to form the dam 50.

[0043] Optionally, the substrate 10 can be a rigid substrate or a flexible substrate; when the substrate 10 is a rigid substrate, it can include a hard substrate such as a glass substrate; when the substrate 10 is a flexible substrate, it can include a flexible substrate such as a polyimide (PI) film and an ultra-thin glass film. Using a flexible substrate as the substrate 10 can make a flexible display panel to realize special properties such as bending and curling of the display panel 100.

[0044] The substrate 10 in the embodiments of the present application is taken as an example of a flexible substrate, and the substrate 10 can include flexible films and inorganic films arranged alternately in layers, such as the substrate 10 including a first polyimide film 11, a first inorganic film 12 and a second polyimide film 13 arranged in layers. In this way, the flexibility of the substrate 10 is realized while the water and oxygen blocking performance of the substrate 10 is also enhanced.

[0045] The inorganic layer 20 is arranged on the substrate 10, specifically, the inorganic layer 20 is arranged on the second polyimide film 13. The material of the inorganic layer 20 can include inorganic materials such as silicon oxide (SiOx), silicon nitride (SiNx) and silicon oxynitride (SiON), which can further prevent undesirable impurities or contaminants (such as moisture and oxygen) from diffusing from the substrate 10 to devices that can be damaged by these impurities or contaminants, while also providing a flat top surface.

[0046] The first stack 30 is arranged on the side of the inorganic layer 20 away from the substrate 10, and the first stack 30 includes a first gate insulating layer 31, a second gate insulating layer 32 and an interlayer insulating layer 33 arranged in layers on the inorganic layer 20. The second stack 40 is arranged on the side of the first stack 30 away from the inorganic layer 20, and the second stack 40 includes a third planarization layer 41, a first planarization layer 42, a pixel definition layer 43 and a barrier layer 44 arranged in layers on the interlayer insulating layer 33.

[0047] The film layer structure of the display panel 100 in each area will be described in detail below:

[0048] Referring toFigure 4 In the display area AA, the display panel 100 further comprises a thin film transistor 60 and a light emitting device 70. The thin film transistor 60 comprises a semiconductor layer 61, a first gate 62, a second gate 63, a first source 641 and a first drain 642, and a second drain 65. The semiconductor layer 61 is disposed on the inorganic layer 20, and the semiconductor layer 61 comprises a channel region 611 and a source region 612 and a drain region 613 located on both sides of the channel region 611. The first gate insulating layer 31 is disposed on the semiconductor layer 61 and the inorganic layer 20. The first gate 62 is disposed on the first gate insulating layer 31, and the first gate 62 is disposed corresponding to the channel region 611 of the semiconductor layer 61. The second gate insulating layer 32 is disposed on the first gate 62 and the first gate insulating layer 31. The second gate 63 is disposed on the second gate insulating layer 32, and the second gate 63 and the first gate 62 are disposed correspondingly. The interlayer insulating layer 33 is disposed on the second gate 63 and the second gate insulating layer 32. The first source 641 and the first drain 642 are disposed on the interlayer insulating layer 33, and the first source 641 is electrically connected to the source region 612 of the semiconductor layer 61, and the first drain 642 is electrically connected to the drain region 613 of the semiconductor layer 61.

[0049] The third planarization layer 41 is disposed on the interlayer insulating layer 33, and the second drain 65 is disposed on the third planarization layer 41, and the second drain 65 is electrically connected to the first drain 642. The first planarization layer 42 is disposed on the second drain 65 and the third planarization layer 41.

[0050] The light emitting device 70 comprises a first electrode 71, a second electrode 72, and a light emitting layer 73 disposed between the first electrode 71 and the second electrode 72. The first electrode 71 is disposed on the first planarization layer 42, the pixel definition layer 43 is disposed on the first electrode 71 and the first planarization layer 42, and the pixel definition layer 43 is provided with a pixel opening at a position corresponding to the first electrode 71. The light emitting layer 73 is disposed on the first electrode 71 in the pixel opening, and the second electrode 72 is disposed on the light emitting layer 73. Optionally, the first electrode 71 is an anode, and the second electrode 72 is a cathode, but the application is not limited thereto.

[0051] In order to protect the light emitting device 70 and avoid water and oxygen from entering the light emitting device 70 to cause failure of the light emitting device 70, the display panel 100 further comprises an encapsulation layer (not shown in the figure) covering the light emitting device 70. The encapsulation layer can adopt a thin film encapsulation, for example, the encapsulation layer can be a laminated structure formed by laminating a first inorganic encapsulation layer, an organic encapsulation layer and a second inorganic encapsulation layer in sequence, or a laminated structure with more layers. The material of the organic encapsulation layer comprises one or more of organic materials such as epoxy and acrylic. The organic encapsulation layer can be coated on the first inorganic encapsulation layer by one of coating processes such as ink jet printing (IJP) and spray coating. It can be understood that when the organic encapsulation layer is printed by the ink jet printing process, the printing ink has fluidity, and therefore the dam layer 44 is provided to block overflow of the printing ink.

[0052] In addition, in the display area AA, the display panel 100 further comprises various signal lines such as data lines, gate scanning lines, power supply lines (VDD, VSS) and the like. As shown in the figure, the data lines 80 are arranged in the display area AA. Figure 4 Of course, the data lines 80 of the present application can also be arranged in the same layer as other metal layers, for example, the data lines 80 can also be arranged in the same layer as the first drain electrode 642. In addition, it should be noted that the structure of the thin film transistor 60 of the present application is not limited to the embodiment shown in the figure, and the thin film transistor 60 of the present application can also adopt a single gate, a single source / drain electrode and a bottom gate structure and the like.

[0053] Next, the film layer structure of the second transition area TA2 will be described in detail.

[0054] It can be understood that, due to the through hole provided in the functional area HA, part of the signal lines in the display area AA need to bypass the through hole of the functional area HA, and therefore the second transition area TA2 needs to be provided between the functional area HA and the display area AA as a wire winding area for placing the signal lines blocked by the functional area HA. The present embodiment takes the data lines 80 as an example of the blocked signal lines. Due to process limitations, a certain spacing needs to be ensured between adjacent data lines 80, and there are dozens of data lines 80 blocked by the functional area HA, so a relatively wide width needs to be provided for the data lines 80. The present application reduces the width of the second transition area TA2 by arranging the signal adapter lines 90 in the first laminated layer 30 in the second transition area TA2, so that the data lines 80 are electrically connected with the signal adapter lines 90.

[0055] Specifically, as shown in the figure, the signal adapter lines 90 are arranged in the first laminated layer 30 in the second transition area TA2. Figure 3As shown, the signal jumper 90 can be arranged in the same layer as any one of the first source electrode 641, the first gate electrode 62 and the second gate electrode 63. For example, as shown in FIG. 6A, the signal jumper 90 is arranged in the same layer as the first gate electrode 62, and the data line 80 is electrically connected to the signal jumper 90 through a via. Figure 4 As shown, the signal jumper 90 is arranged in the same layer as the first gate electrode 62, and the data line 80 is electrically connected to the signal jumper 90 through a via.

[0056] In addition, in the second transition area TA2, the coverage area of the pixel definition layer 43 is smaller than that of the first planarization layer 42, so as to provide a buffer for printing the organic encapsulation layer.

[0057] Next, the film structure of the first transition area TA1 is described in detail.

[0058] For reference Figure 3 and Figure 5 In order to improve the effective encapsulation effect of the display panel 100, a first transition area TA1 is further arranged between the functional area HA and the second transition area TA2. The inorganic layer 20 is formed with a plurality of grooves 21 in the first transition area TA1, so as to block the water and oxygen invasion path. The first interval L1 is arranged between two adjacent grooves 21, and the width of each adjacent first interval L1 is equal.

[0059] Specifically, the plurality of grooves 21 includes a first groove 211 and at least two second grooves 212. The first groove 211 is arranged close to the display area AA, and the second groove 212 is arranged on the side of the first groove 211 away from the display area AA. Each groove 21 includes a first opening (such as 2111 and 2121) and a second opening (such as 2112 and 2122) penetrating each other. Taking the first groove 211 as an example, the first opening 2111 penetrates the inorganic layer 20, and the second opening 2112 is arranged in the substrate 10. The width D11 of the first opening 2111 close to the substrate 10 is smaller than the width D12 of the second opening 2112 close to the inorganic layer 20, so that the first groove 211 forms an undercut structure. Figure 5 Figure 5

[0060] ​​Therefore, when the light emitting device 70 is manufactured, the organic functional layer deposited will be broken at the undercut structure of the groove 21, so as to avoid water and oxygen from the functional area HA along the organic functional layer to the display area AA, thereby cutting off the water and oxygen invasion path. The encapsulation layer extends from the display area AA to the second transition area TA2 and the first transition area TA1, and covers the groove 21 in the first transition area TA1, so as to form effective encapsulation. Meanwhile, the groove 21 can also block the crack generated when the through hole of the functional area HA is formed from extending to the display area AA.

[0061] Optionally, the width D11 of the first opening 2111 of the first groove 211 is greater than the width D21 of the first opening 2121 of the second groove 212, the width D12 of the second opening 2112 of the first groove 211 is greater than the width D22 of the second opening 2122 of the second groove 212, and the number of the second groove 212 includes 2 to 6, so that the groove 21 can form a better undercut structure on the substrate 10, and the inorganic encapsulation layer of the encapsulation layer can also cover the undercut structure to block the water and oxygen invasion path.

[0062] Further, a plurality of the dams 50 are located on the inorganic layer 20 in the first transition area TA1, and the plurality of the dams 50 can play a secondary blocking role and a slight crack prevention role when the inkjet printing slightly overflows. Optionally, the plurality of the dams 50 are arranged close to the display area AA to play a better blocking role of the inkjet printing slightly overflowing and a slight crack prevention role. Each of the dams 50 is formed by part of the second stack 40 located in the first transition area TA1, specifically, each of the dams 50 is stacked by the first planarization layer 42, the pixel definition layer 43 and the barrier layer 44. More specifically, the first planarization layer 42 located in the first transition area TA1 is formed with a first protrusion, the pixel definition layer 43 is covered on the first protrusion, and the barrier layer 44 is covered on the pixel definition layer 43 on the surface of the first protrusion.

[0063] There is at least one groove 21 between two adjacent dams 50, preferably two grooves 21 between two adjacent dams 50, and the width L2 of each dam 50 is equal to or less than the width of the first interval L1. Among the plurality of the dams 50, one of the dams 50 is located on one side of the first groove 211 close to the display area AA, and the remaining dams 50 are located on the other side of the first groove 211 away from the display area AA, as shown in Figure 3Among the three dams 50 shown, one of the dams 50 is located on one side of the first groove 211 close to the display area AA, and the other two dams 50 are respectively located on the inorganic layer 20 between two adjacent second grooves 212, and two grooves 21 are provided between the two adjacent dams 50.

[0064] In this embodiment, by dispersing a plurality of dams 50 on one side of the groove 21, the space originally provided with the dam can be saved, thereby reducing the width of the first transition area TA1, and further reducing the width between the display area AA and the function area HA, thereby solving the problem of the wide frame width of the existing display device. At the same time, the signal lines of the second transition area TA2 are layered by the signal adapter lines 90, thereby reducing the width of the second transition area TA2, and further reducing the width between the display area AA and the function area HA.

[0065] In one embodiment, please refer to Figures 2 to 8 , Figure 6 A cross-sectional structure diagram of a part of the film layer of the display panel provided in the embodiment of the present application is shown in Figure 7 Another detail structure diagram of the display area of the display panel provided in the embodiment of the present application is shown in Figure 8 Another top view structure diagram of the display panel provided in the embodiment of the present application is shown in. Different from the above embodiment, the signal lines in the second transition area TA2 and the signal adapter lines 90 in the above embodiment are placed in the display area AA, as shown in Figure 8 , so that the signal adapter lines 90 do not need to be provided in the second transition area TA2, thereby further reducing or even eliminating the width of the second transition area TA2.

[0066] Specifically, the second stack 40 further includes a second planarization layer 45 between the first planarization layer 42 and the third planarization layer 41, the signal adapter lines 90 are provided on the second planarization layer 45, the signal lines are located in the first stack 30 and / or the second stack 40, and the signal lines are electrically connected to the corresponding signal adapter lines 90. This embodiment also takes the data line 80 located on the third planarization layer 41 as an example, as shown in Figure 7 , the data line 80 is electrically connected to the signal adapter line 90. For other descriptions, please refer to the above embodiment, which will not be repeated here.

[0067] In one embodiment, please refer to Figures 2 to 9Another detail structure diagram of the dam is provided in the embodiment of the present application. Different from the above embodiment, the dam 50 is stacked by the first planarization layer 42 and the pixel definition layer 43, and specifically, the first planarization layer 42 located in the first transition area TA1 is formed with a first protrusion, and the pixel definition layer 43 is covered on the first protrusion to form the dam 50. In this way, the beneficial effects in the above embodiment can also be achieved. For other descriptions, please refer to the above embodiment, which will not be repeated here.

[0068] Based on the same inventive concept, the embodiment of the present application also provides an electronic device, please refer to Figure 10 , Figure 10 A cross-sectional structure diagram of the electronic device provided in the embodiment of the present application is shown. The electronic device 1000 includes a housing 200 and the display panel 100 of any one of the above embodiments, the housing 200 is formed with a receiving cavity 201, and the display panel 100 is assembled in the receiving cavity 201. The electronic device 1000 can be a wearable device, such as a smart bracelet, a smart watch, or a virtual reality (VR) device, etc. It can also be a mobile phone, an electronic book, an electronic newspaper, a television, or a personal portable computer. It can also be a flexible OLED display or lighting device that can be bent and folded. The specific form of the electronic device is not limited in the embodiment of the present application.

[0069] According to the above embodiments, it can be known that:

[0070] The present application provides a display panel and an electronic device, the display panel includes a functional area, a display area close to the functional area, and a first transition area between the functional area and the display area. The display panel further includes an inorganic layer disposed on a substrate and a plurality of dams disposed on the inorganic layer in the first transition area. The inorganic layer forms a plurality of grooves in the first transition area, each groove penetrates the inorganic layer and extends into the substrate. There is at least one groove between each adjacent two dams. By dispersing the plurality of dams on one side of the groove, the space originally occupied by the dam can be saved, thereby reducing the width of the first transition area, and further reducing the width between the display area and the functional area, to alleviate the problem of wide bezel width of the existing display device.

[0071] In the above embodiments, the description of each embodiment focuses on different aspects. The parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0072] The above has carried out the detailed introduction to the embodiment of the application, the principle and implementation mode of the application are described by applying specific examples in this paper, the above embodiment is only used to help understanding the technical scheme of the application and its core idea; the ordinary skilled in the art should understand that: it can still modify the technical scheme recorded by the foregoing each embodiment, or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical scheme deviate from the scope of the technical scheme of each embodiment of the application.

Claims

1. A display panel, characterized by, The display panel comprises a function area, a display area close to the function area, and a first transition area between the function area and the display area; the display panel further comprises: a substrate; an inorganic layer disposed on one side of the substrate, and in the first transition area, the inorganic layer is formed with a plurality of grooves, each of the grooves penetrates the inorganic layer and extends into the substrate; a plurality of dams located in the first transition area and disposed on the side of the inorganic layer away from the substrate; wherein, between two adjacent grooves, there is a first interval, and the width of each adjacent first interval is equal, between two adjacent dams, there is at least one groove, and the width of each dam is equal to or less than the width of the first interval; the plurality of grooves comprises a first groove and at least two second grooves, the first groove is disposed close to the display area, and the second groove is located on the side of the first groove away from the display area; one of the dams is located on the side of the first groove close to the display area, and the remaining dams are located on the side of the first groove away from the display area; each of the grooves comprises a first opening and a second opening which are mutually penetrated, the first opening penetrates the inorganic layer, and the second opening is located in the substrate, the width of the first opening close to the substrate side is less than the width of the second opening close to the inorganic layer side, the width of the first opening of the first groove is greater than the width of the first opening of the second groove, and the width of the second opening of the first groove is greater than the width of the second opening of the second groove.

2. The display panel of claim 1, wherein, Between each adjacent two second grooves, there is a dam.

3. The display panel of claim 1, wherein, Between each adjacent two dams, there are two grooves.

4. The display panel of any one of claims 1-3, wherein, The display panel further comprises: a first stack disposed on the side of the inorganic layer away from the substrate; a second stack disposed on the side of the first stack away from the inorganic layer; wherein, the second stack comprises a first planarization layer and a pixel definition layer which are stacked, the pixel definition layer is located on the side of the first planarization layer away from the first stack, in the first transition area, the first planarization layer is formed with a first protrusion, the pixel definition layer covers the first protrusion, and the first protrusion and the pixel definition layer covering the first protrusion form the dam.

5. The display panel of claim 4, wherein, The second stack further comprises a barrier layer located on the side of the pixel definition layer away from the first planarization layer, in the first transition area, the barrier layer covers the pixel definition layer on the first protrusion, and the dam further comprises the barrier layer disposed corresponding to the first protrusion.

6. The display panel of claim 4, wherein, The display panel further comprises a second transition area between the first transition area and the display area, the first stack and the second stack both extend from the display area to the second transition area, in the second transition area, the coverage area of the pixel definition layer is smaller than the coverage area of the first planarization layer.

7. The display panel of claim 4, wherein, The second stack further comprises a second planarization layer, the first planarization layer is located on a side of the second planarization layer away from the first stack, in the display area, the display panel further comprises a plurality of signal lines and a plurality of signal transfer lines in different layers from the signal lines, a plurality of the signal transfer lines are arranged on the second planarization layer, the signal lines are arranged in the first stack and / or the second stack, and the signal transfer lines are electrically connected with the corresponding signal lines.

8. An electronic device, comprising: The display panel as claimed in any one of claims 1 to 7, comprising a housing, wherein the housing is formed with a receiving cavity, and the display panel is assembled in the receiving cavity.

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