Display panel and display device

Abstract

The invention discloses a display panel and a display device, and belongs to the technical field of display. The display panel provided by the invention comprises a substrate, and a light-emitting device, a first metal ring and a plurality of inorganic functional layers which are positioned on one side of the substrate. The part, located in the transition area, of at least one layer of the multiple inorganic functional layers is provided with the annular groove, the annular groove is distributed around the opening area, at least part of the first metal ring is located in the annular groove, and a metal three-dimensional structure can be formed in the transition area of the display panel. As metal has good ductility, when the display panel is impacted by an external force, the first metal ring can absorb energy of the impact of the external force, and the probability that the inorganic functional layer cracks under the impact of the external force is reduced, so that the strength of the overall structure of the display panel can be improved by utilizing the high ductility of the metal, and the reliability of the display panel is improved.

Description

Technical Field

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

[0002] In order to pursue a full-screen design, the display panel has an opening area in the display area for placing sensors such as cameras to reduce the screen border and increase the screen-to-body ratio. This type of display panel has an opening area, a transition area and a display area. The display area is arranged around the opening area, and the transition area is located between the display area and the opening area.

[0003] Part of the film layer of the display panel is made of inorganic materials. Inorganic materials have high rigidity and poor plasticity. When the display panel is subjected to external force, cracks may easily appear, or even the film layer may separate, resulting in low reliability of the display panel. Summary of the invention

[0004] The embodiments of the present application provide a display panel and a display device, which can solve the problem of low reliability of display panels in the prior art. The technical solution is as follows:

[0005] On the one hand, a display panel is provided, characterized in that the display panel has: a display area, a transition area and an opening area, the display area is located at the periphery of the opening area, and the transition area is located between the display area and the opening area; the display panel includes: a substrate, and a light-emitting device, a first metal ring and a multi-layer inorganic functional layer located on one side of the substrate;

[0006] The light emitting device is located in the display area;

[0007] The multi-layer inorganic functional layer is located on a side of the light-emitting device away from the substrate, and a portion of at least one layer of the inorganic functional layer located in the transition region has an annular groove, and the annular groove is distributed around the opening region;

[0008] The first metal ring is distributed in the transition region and is located on a side of the multi-layer inorganic functional layer facing away from the substrate, and at least a portion of the first metal ring is located in the ring groove.

[0009] Optionally, the inorganic functional layer farthest from the substrate among the multiple inorganic functional layers is the first inorganic layer;

[0010] The annular groove penetrates the entire first inorganic layer at least in a direction perpendicular to the substrate.

[0011] Optionally, the inorganic functional layer adjacent to the first inorganic layer in the multi-layer inorganic functional layer is a second inorganic layer, and the inorganic functional layer located on a side of the second inorganic layer away from the first inorganic layer in the multi-layer inorganic functional layer is a third inorganic layer;

[0012] Wherein, the annular groove also penetrates through the entire second inorganic layer in a direction perpendicular to the substrate, and penetrates through at least a part of the third inorganic layer.

[0013] Optionally, the number of the annular grooves is multiple, and the multiple annular grooves are nested and distributed in sequence;

[0014] Wherein, the orthographic projection of the first metal ring on the substrate covers the orthographic projections of the multiple annular grooves on the substrate, and there is a part in the orthographic projection of the first metal ring on the substrate that is distributed between the orthographic projections of two adjacent annular grooves on the substrate.

[0015] Optionally, at least a part of the inorganic functional layer located in the transition region further has: multiple communication grooves located between two adjacent annular grooves, and two ends of each communication groove are respectively communicated with two adjacent annular grooves.

[0016] Optionally, the multiple annular grooves and the multiple communication grooves are used to enclose multiple mesh regions;

[0017] The first metal ring has multiple first openings corresponding to the multiple mesh regions, and the orthographic projection of the first opening on the substrate is located within the orthographic projection of the mesh region on the substrate.

[0018] Optionally, for any three adjacent annular grooves, the three adjacent annular grooves are respectively: a first annular groove, a second annular groove, and a third annular groove, the first annular groove is closer to the opening area than the second annular groove, and the third annular groove is farther from the opening area than the second annular groove;

[0019] The communication groove located between the first annular groove and the second annular groove is a first communication groove, and the communication groove located between the second annular groove and the third annular groove is a second communication groove;

[0020] Wherein, the multiple first communication grooves and the multiple second communication grooves correspond to each other, and one end of the first communication groove facing the second annular groove is directly communicated with one end of the corresponding second communication groove facing the second annular groove; or, the multiple first communication grooves and the multiple second communication grooves are alternately arranged in the circumferential direction of the opening area.

[0021] Optionally, the display panel further includes: a second metal ring, the second metal ring is distributed in the transition region and is located on a side of at least one inorganic functional layer facing the substrate; the second metal ring is distributed around the opening area, and the orthographic projection of the second metal ring on the substrate does not coincide with the orthographic projection of the annular groove on the substrate;

[0022] The orthographic projection of the second metal ring on the substrate is located within the orthographic projection of the first metal ring on the substrate.

[0023] Optionally, the inorganic functional layer distributed between the first metal ring and the second metal ring has a first through groove, and an orthographic projection of the first through groove on the substrate is located within an orthographic projection of the second metal ring on the substrate;

[0024] Wherein, the first metal ring is overlapped with the second metal ring through the first through groove.

[0025] Optionally, the number of the ring grooves is multiple, and the number of the second metal ring is at least one;

[0026] Wherein, an orthographic projection of one of the second metal rings on the substrate is located between the orthographic projections of two adjacent ring grooves on the substrate.

[0027] Optionally, the display panel further comprises: a plurality of isolation parts; the plurality of isolation parts are all located in the transition area and are distributed around the opening area; the plurality of isolation parts are nested and distributed in sequence;

[0028] The display panel further comprises: a first electrode layer, a light-emitting layer, and a second electrode layer which are stacked; parts of the first electrode layer, the light-emitting layer, and the second electrode layer located in the display area are used to form a plurality of the light-emitting devices;

[0029] The isolation portion is used to separate the light-emitting layer and the portion of the second electrode layer located in the transition region.

[0030] Optionally, the multi-layer inorganic functional layer is located on a side of the isolation portion away from the substrate; the number of the annular groove is multiple;

[0031] The orthographic projections of the plurality of annular grooves on the substrate are located between the orthographic projections of the plurality of isolation portions on the substrate and the orthographic projection of the opening area on the substrate;

[0032] Alternatively, at least some of the plurality of isolation portions correspond to the plurality of annular grooves, and the orthographic projections of the annular grooves on the substrate are located within the orthographic projections of the corresponding isolation portions on the substrate;

[0033] Alternatively, an orthographic projection of one of the annular grooves on the substrate is located between orthographic projections of two adjacent isolation portions on the substrate.

[0034] Optionally, the display panel further includes: an encapsulation layer and a touch layer;

[0035] The encapsulation layer is located on the side of the light-emitting device facing away from the substrate, and the encapsulation layer at least includes: a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer that are stacked in a direction away from the substrate;

[0036] The touch layer is located on the side of the encapsulation layer facing away from the substrate, and the touch layer at least includes: a touch buffer layer, a first touch metal layer, a touch insulating layer, and a second touch metal layer that are stacked in a direction away from the substrate;

[0037] Among them, the multiple inorganic functional layers in the direction away from the substrate are respectively: the first inorganic encapsulation layer, the second inorganic encapsulation layer, the touch buffer layer, and the touch insulating layer; the first metal ring and the second touch metal layer are arranged in the same layer and have the same material.

[0038] Optionally, the display panel further includes: a second metal ring, the second metal ring is distributed in the transition area and is located on the side of at least one of the inorganic functional layers facing the substrate; the second metal ring is distributed around the opening area, and the orthographic projection of the second metal ring on the substrate does not coincide with the orthographic projection of the ring groove on the substrate;

[0039] The second metal ring and the first touch metal layer are arranged in the same layer and have the same material.

[0040] On the other hand, a display device is provided, which is characterized by including: a power supply component, and a display panel connected to the power supply component, and the display panel is the display panel described in any one of the above.

[0041] The beneficial effects brought by the technical solutions provided in the embodiments of the present application at least include:

[0042] Since a part of at least one of the multiple inorganic functional layers located in the transition area has a ring groove, and the ring groove is distributed around the opening area, and at least a part of the first metal ring is located in the ring groove. On the one hand, a metal three-dimensional structure can be formed in the transition area of the display panel. Since the metal has good ductility, when the display panel is impacted by an external force, the first metal ring can absorb the energy of the external force impact, reduce the probability of cracks appearing in the inorganic functional layer under the action of the external force impact, and thus the overall strength of the display panel can be improved by using the high ductility of the metal. On the other hand, even if cracks are generated in the part of the inorganic functional layer located in the transition area under the action of an external force impact, the ring groove can effectively block the cracks from spreading towards the display area, thereby avoiding the phenomenon of film layer separation in the display panel or water vapor in the external environment entering the display area along the cracks from the opening area, and improving the reliability of the display panel. Description of the Drawings

[0043] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0044] Figure 1 It is a top view of a display panel provided by an embodiment of the present application;

[0045] Figure 2 is Figure 1 A cross-sectional schematic diagram of the display panel shown at AA';

[0046] Figure 3 is Figure 1 A cross-sectional schematic diagram of the display panel shown at BB';

[0047] Figure 4 It is a top view of a display panel provided by the present application at the transition region;

[0048] Figure 5 It is another top view of the display panel provided by the present application at the transition region;

[0049] Figure 6 is Figure 5 A cross-sectional schematic diagram at CC' in;

[0050] Figure 7 It is another top view of the display panel provided by the present application at the transition region;

[0051] Figure 8 It is yet another top view of the display panel provided by the present application at the transition region;

[0052] Figure 9 It is yet another top view of the display panel provided by the present application at the transition region;

[0053] Figure 10 It is yet another top view of the display panel provided by the present application at the transition region;

[0054] Figure 11 It is yet another top view of the display panel provided by the present application at the transition region;

[0055] Figure 12 It is yet another top view of the display panel provided by the present application at the transition region;

[0056] Figure 13 It is yet another top view of the display panel provided by the present application at the transition region;

[0057] Figure 14 isFigure 13 A schematic cross-sectional view at DD' in

[0058] Figure 15 Another top view of the display panel provided by this application at the transition area;

[0059] Figure 16 Is Figure 15 An enlarged schematic view at R1 in

[0060] Figure 17 Is Figure 16 A schematic cross-sectional view at EE' in

[0061] Figure 18 Another top view of the display panel provided by this application at the transition area;

[0062] Figure 19 Is Figure 18 A schematic cross-sectional view at GG' in

[0063] Figure 20 Is Figure 18 Another schematic cross-sectional view at GG' in

[0064] Figure 21 Is Figure 18 Another schematic cross-sectional view at GG' in

[0065] Figure 22 Another top view of the display panel provided by this application at the transition area;

[0066] Figure 23 Is Figure 22 An enlarged schematic view at R2 in

[0067] Figure 24 Is Figure 23 A schematic cross-sectional view at FF' in

[0068] Figure 25 Another top view of the display panel provided by this application at the transition area;

[0069] Figure 26 Another top view of the display panel provided by this application at the transition area;

[0070] Figure 27 Is Figure 26 An enlarged schematic view at R3 in

[0071] Figure 28 Is Figure 27 A schematic cross-sectional view at HH' in

[0072] Figure 29 Another top view of the display panel provided by this application at the transition area;

[0073] Figure 30 is Figure 29 An enlarged schematic view at R4 in

[0074] Figure 31 is Figure 30 A cross-sectional schematic view at II' in

[0075] Figure 32 Another top view of the display panel provided by the present application at the transition region

[0076] Figure 33 is Figure 32 An enlarged schematic view at R5 in

[0077] Figure 34 is Figure 33 A cross-sectional schematic view at JJ' in Detailed implementation manners

[0078] To make the objectives, technical solutions and advantages of the present application clearer, the following will further describe the implementation manners of the present application in detail with reference to the accompanying drawings.

[0079] Please refer to Figure 1 , Figure 1 which is a top view of a display panel provided by an embodiment of the present application. The display panel 000 has: a display area 001, a transition area 002, and an opening area 003. Among them, the display area 001 is located on the periphery of the opening area 003, and the transition area 002 is located between the display area 001 and the opening area 003.

[0080] Please refer to Figure 2 and Figure 3 , Figure 2 is Figure 1 A cross-sectional schematic view of the display panel shown at AA', Figure 3 is Figure 1 A cross-sectional schematic view of the display panel shown at BB'. The display panel 000 may include: a substrate 100, and a light-emitting device 200 and a multi-layer inorganic functional layer 300 located on one side of the substrate 100.

[0081] The number of the light-emitting devices 200 in the display panel 000 is multiple, and the multiple light-emitting devices 200 can all be distributed in the display area 001.

[0082] Such as Figure 3As shown, the display panel 000 may further include a pixel definition layer 400. The pixel definition layer 400 is distributed within the display area 001, and the pixel definition layer 400 may have a plurality of pixel apertures K that correspond one-to-one with a plurality of light-emitting devices 200, and each light-emitting device 200 may be located within a corresponding pixel aperture K. The display panel 000 may further include: a first electrode layer 201 on the side of the pixel definition layer 400 facing the substrate 100, and a light-emitting layer 202 and a second electrode layer 203 that are stacked on the side of the pixel definition layer 400 facing away from the substrate 100. The light-emitting layer 202 is closer to the substrate 100 than the second electrode layer 203. Among them, the first electrode layer 201 includes a plurality of first electrodes 201a that correspond one-to-one with the plurality of pixel apertures K.

[0083] It should be noted that the portion of the light-emitting layer 202 distributed within each pixel aperture K may be in contact with the corresponding first electrode 201a. In this case, for any one pixel aperture K, the first electrode 201a corresponding to this pixel aperture K, and the portions of the light-emitting layer 202 and the second electrode layer 203 distributed within this pixel aperture K may form a light-emitting device 200.

[0084] The multi-layer inorganic functional layer 300 in the display panel 000 is located on the side of the light-emitting device 200 facing away from the substrate 100. As Figure 3 shown, the display panel 000 may further include: a packaging layer 500 and a touch control layer 600.

[0085] The packaging layer 500 in the display panel 000 is located on the side of the light-emitting device 200 facing away from the substrate 100, and the packaging layer 500 may at least include: a first inorganic packaging layer 501, an organic packaging layer 502, and a second inorganic packaging layer 503 that are stacked in the direction away from the substrate 100. Here, the first inorganic packaging layer 501 may be in contact with the side of the second electrode layer 203 facing away from the substrate 100, that is, the first inorganic packaging layer 501 may cover the plurality of light-emitting devices 200. The organic packaging layer 502 can ensure that the flatness of the portion of the display panel 000 within the display area 001 is better, so as to ensure better effects of other functional layers (such as the touch control layer) formed on the portion of the packaging layer 500 within the display area 001 subsequently. The second inorganic packaging layer 503 can be used to cover the side of the organic packaging layer 502 facing away from the substrate 100. By providing the packaging layer 500 in the display panel 000, it is possible to prevent water and oxygen in the external environment from eroding the light-emitting devices 200 from the display side of the display panel 000, and improve the reliability of the display panel 000.

[0086] However, since the organic packaging layer 502 has strong fluidity and poor water and oxygen isolation ability, therefore, please refer to Figure 4 , Figure 4It is a top view of a display panel provided by this application at the transition area. The display panel 000 may further include: an annular retaining wall 700, which may be located within the transition area 002 and distributed around the opening area 003. The annular retaining wall 700 can be used to prevent the organic encapsulation layer 502 from overflowing outward, so that the organic encapsulation layer 502 is located outside the area surrounded by the annular retaining wall 700. That is, within the area surrounded by the annular retaining wall 700, the first inorganic encapsulation layer 501 and the second inorganic encapsulation layer 503 are in direct contact to ensure that the first inorganic encapsulation layer 501 and the second inorganic encapsulation layer 503 can wrap the organic encapsulation layer 502. In this way, it can be ensured that the organic encapsulation layer 502 is not distributed near the opening area 003, thereby ensuring the encapsulation effect of the display panel 000.

[0087] Please refer to again Figure 3 , the touch layer 600 in the display panel 000 is located on the side of the encapsulation layer 500 away from the substrate 100, and the touch layer 600 may at least include: a touch buffer layer 601, a first touch metal layer 602, a touch insulating layer 603, and a second touch metal layer 604 that are stacked in the direction away from the substrate 100. By setting the touch layer 600, the display panel 000 can achieve the touch function.

[0088] It should be noted that the touch layer 600 may have a plurality of second openings 600a, and the plurality of second openings 600a may correspond to a plurality of pixel openings K in the pixel definition layer 400. The orthographic projection of the pixel opening K on the substrate 100 is located within the orthographic projection of the corresponding second opening 600a on the substrate 100. In a possible case, the plurality of second openings 600a in the touch layer 600 and the plurality of pixel openings K in the pixel definition layer 400 may correspond one by one. As Figure 3 shown, the orthographic projection of each light-emitting device 200 in the pixel opening K on the substrate 100 may be located within the orthographic projection of the corresponding second opening 600a in the touch layer 600 on the substrate 100. In this way, the light emitted by each light-emitting device 200 will not be blocked by the touch layer 600, but can emit light outward through its corresponding second opening 600a. Furthermore, it can be ensured that while the display panel 000 realizes the touch function, it will not affect the normal display of the display panel 000.

[0089] Here, the touch buffer layer 601 may be in contact with the side of the second inorganic encapsulation layer 503 away from the substrate 100. By setting the touch buffer layer 601, it can be ensured that the first touch metal layer 602 and the second touch metal layer 604 can be formed better subsequently. Moreover, the touch buffer layer 601 can also be used to enhance the bonding force between the encapsulation layer 500 and the touch layer 600 and buffer the impact force generated during the touch operation, improving the firmness of the film layer bonding, thereby ensuring that the reliability of the display panel 000 is relatively high.

[0090] The first touch metal layer 602 and the second touch metal layer 604 are at least located within the display area 001. One of the first touch metal layer 602 and the second touch metal layer 604 may include: a plurality of first touch electrodes and a plurality of second touch electrodes arranged in the same layer, and connection electrodes for connecting two adjacent first touch electrodes; the other of the first touch metal layer 602 and the second touch metal layer 604 may include: bridging electrodes for connecting two adjacent second touch electrodes.

[0091] It should be noted that the bridging electrodes and the connection electrodes may be arranged in a cross pattern, and they may be insulated from each other by a touch insulating layer 603. Among them, one of the first touch electrodes and the second touch electrodes may be a touch driving electrode, and the other may be a touch sensing electrode. Through the cooperation of the touch driving electrode and the touch sensing electrode, the display panel 000 can achieve a touch function.

[0092] It should also be noted that both the touch driving electrode and the touch sensing electrode may be grid-shaped electrodes having a plurality of grid holes, and the grid holes in the touch driving electrode and the touch sensing electrode are both part of the second opening 600a.

[0093] The touch buffer layer 601 and the touch insulating layer 603 may also include portions located within the transition area 002, such as Figure 2 As shown, within the transition area 002 of the display panel 000, the touch buffer layer 601 may be located on the side of the second inorganic encapsulation layer 503 away from the substrate 100 and in contact with the second inorganic encapsulation layer 503; the touch insulating layer 603 may be located on the side of the touch buffer layer 601 away from the substrate 100 and in contact with the touch buffer layer 601.

[0094] Therefore, the multiple inorganic functional layers 300 in the display panel 000 along the direction away from the substrate 100 may include: the first inorganic encapsulation layer 501, the second inorganic encapsulation layer 503, the touch buffer layer 601, and the touch insulating layer 603, and the portions of the multiple inorganic functional layers 300 located within the transition area 002 are stacked and in contact with each other in pairs. Among them, the first inorganic encapsulation layer 501, the second inorganic encapsulation layer 503, and the touch insulating layer 603 may all be made of inorganic materials such as silicon nitride, silicon oxide, or silicon oxynitride.

[0095] Since the opening area 003 of the display panel 000 is easily impacted by external forces, and inorganic materials have high rigidity and poor plasticity, when the display panel 000 is impacted by external forces, the inorganic functional layers 300 near the opening area 003 are prone to generate cracks. The generation and propagation of the cracks will further cause the film layer separation of the display panel 000, and water and oxygen in the external environment are also more likely to invade the display area 001 from the opening area 003, affecting the display effect of the display panel 000 and resulting in low reliability of the display panel 000.

[0096] For this purpose, please refer to Figure 5 and Figure 6 , Figure 5 which is another top view of the display panel provided by the present application at the transition region, Figure 6 and Figure 5 is a schematic cross-sectional view at CC' in . In the multi-layer inorganic functional layer 300 of the display panel 000, at least a part of the inorganic functional layer 300 located within the transition region 002 has an annular groove 300a, and the annular groove 300a is distributed around the opening region 003.

[0097] The display panel 000 may further include: a first metal ring 800. The first metal ring 800 in the display panel 000 is distributed within the transition region 002 and is located on the side of the multi-layer inorganic functional layer 300 away from the substrate 100. At least a part of the first metal ring 800 is located within the annular groove 300a.

[0098] In this case, on the one hand, a metal three-dimensional structure can be formed within the transition region 002 of the display panel 000. Since the metal has good ductility, when the display panel 000 is impacted by an external force, the first metal ring 800 can absorb the energy of the external force impact, reducing the probability of cracks appearing in the inorganic functional layer 300 under the action of the external force impact. Thus, the high ductility of the metal can be utilized to improve the strength of the overall structure of the display panel 000. On the other hand, even if cracks occur in the part of the inorganic functional layer 300 located within the transition region 002 under the action of an external force impact, the annular groove 300a can effectively prevent the cracks from spreading towards the display region 001, thereby avoiding the phenomenon of film layer separation in the display panel 000 or water vapor in the external environment entering the display region 001 along the cracks from the opening region 003, and improving the reliability of the display panel 000.

[0099] In summary, the display panel provided by the present application includes: a substrate, and a light-emitting device, a first metal ring, and a multi-layer inorganic functional layer located on one side of the substrate. Since at least a part of the multi-layer inorganic functional layer located within the transition region has an annular groove, and the annular groove is distributed around the opening region, and at least a part of the first metal ring is located within the annular groove, on the one hand, a metal three-dimensional structure can be formed within the transition region of the display panel. Since the metal has good ductility, when the display panel is impacted by an external force, the first metal ring can absorb the energy of the external force impact, reducing the probability of cracks appearing in the inorganic functional layer under the action of the external force impact. Thus, the high ductility of the metal can be utilized to improve the strength of the overall structure of the display panel. On the other hand, even if cracks occur in the part of the inorganic functional layer located within the transition region under the action of an external force impact, the annular groove can effectively prevent the cracks from spreading towards the display region, thereby avoiding the phenomenon of film layer separation in the display panel or water vapor in the external environment entering the display region along the cracks from the opening region, and improving the reliability of the display panel.

[0100] As shown Figure 6 in the figure, the inorganic functional layer 300 farthest from the substrate 100 in the multi-layer inorganic functional layer 300 may be the first inorganic layer 301. Among them, the annular groove 300a penetrates through the entire first inorganic layer 301 at least in the direction perpendicular to the substrate 100. Exemplarily, the first inorganic layer 301 may be the touch insulation layer 603, and the annular groove 300a penetrates through the entire touch insulation layer 603 at least in the direction perpendicular to the substrate 100. In this way, it can be ensured that the annular groove 300a has a certain depth, and at least part of the first metal ring 800 is located in the annular groove 300a, which can effectively improve the strength of the overall structure of the display panel 000, thereby improving the reliability of the display panel 000.

[0101] The inorganic functional layer 300 adjacent to the first inorganic layer 301 in the multi-layer inorganic functional layer 300 may be the second inorganic layer 302, and the inorganic functional layer 300 located on the side of the second inorganic layer 302 away from the first inorganic layer 301 in the multi-layer inorganic functional layer 300 may be the third inorganic layer 303. Among them, the annular groove 300a may also penetrate through the entire second inorganic layer 302 in the direction perpendicular to the substrate 100, and penetrate through at least part of the third inorganic layer 303.

[0102] That is to say, the annular groove 300a may have various possible implementation manners. In one possible case, the annular groove 300a may penetrate through the entire first inorganic layer 301 in the direction perpendicular to the substrate 100, and penetrate through at least part of the second inorganic layer 302. In another possible case, the annular groove 300a may penetrate through the entire first inorganic layer 301 and the entire second inorganic layer 302 in the direction perpendicular to the substrate 100. In still another possible case, the annular groove 300a may penetrate through the entire first inorganic layer 301 and the entire second inorganic layer 302 in the direction perpendicular to the substrate 100, and penetrate through at least part of the third inorganic layer 303.

[0103] Exemplarily, the second inorganic layer 302 may be the touch buffer layer 601 in the display panel 000, and the third inorganic layer 303 may be the second inorganic encapsulation layer 503 in the display panel 000.

[0104] The multi-layer inorganic functional layer 300 may further include: a fourth inorganic layer 304, and the fourth inorganic layer 304 is located on the side of the third inorganic layer 303 away from the second inorganic layer 302. Exemplarily, the fourth inorganic layer 304 may be the first inorganic encapsulation layer 501 in the display panel 000.

[0105] It should be noted that in order to ensure that the encapsulation effect of the display panel 000 is not affected, at least the integrity of the first inorganic encapsulation layer 501 and part of the second inorganic encapsulation layer 503 should be ensured. That is, the first inorganic encapsulation layer 501 and at least part of the second inorganic encapsulation layer 503 are not penetrated by the annular groove 300a, so as to avoid the failure of encapsulation and the entry of water vapor in the external environment into the display area 001 to damage the light-emitting device 200, and ensure the reliability and yield of the display panel 000.

[0106] It can be understood that on the premise of ensuring good encapsulation effect of the display panel 000, since at least part of the first metal ring 800 is located in the annular groove 300a, the deeper the depth of the annular groove 300a, the stronger the ability of the metal three-dimensional structure formed in the transition area 002 of the display panel 000 to absorb the energy of external force impact. Therefore, the probability of cracks generated in the inorganic functional layer 300 under the action of external force can be more effectively reduced, the strength of the overall structure of the display panel 000 can be improved, and the reliability of the display panel 000 can be improved.

[0107] In the embodiment of the present application, as Figure 6 shown, the number of the annular grooves 300a can be multiple, and the multiple annular grooves 300a are nested and distributed in sequence. At least part of the first metal ring 800 is located in the multiple annular grooves 300a. In a possible case, the orthographic projection of the first metal ring 800 on the substrate 100 can cover the orthographic projection of the multiple annular grooves 300a on the substrate 100. In another possible case, the orthographic projection of the first metal ring 800 on the substrate 100 can cover the orthographic projection of the multiple annular grooves 300a on the substrate 100, and there is also a part in the orthographic projection of the first metal ring 800 on the substrate 100 that is distributed between the orthographic projections of two adjacent annular grooves 300a on the substrate 100. In this way, on the one hand, the area of the first metal ring 800 located in the transition area 002 is larger, and the ability of the first metal ring 800 to absorb the energy of external force impact is stronger. Therefore, the probability of cracks appearing in the inorganic functional layer 300 under the action of external force impact can be more effectively reduced, the strength of the overall structure of the display panel 000 can be improved, and the reliability of the display panel 000 can be improved. On the other hand, the manufacturing process of the display panel 000 can be simplified, and the production efficiency can be improved.

[0108] Please refer to Figure 7 , Figure 7It is another top view of the display panel provided by the present application at the transition region. The portion of at least one inorganic functional layer 300 of the display panel 000 located within the transition region 002 further has: a plurality of communication grooves 300b located between two adjacent annular grooves 300a, and both ends of the communication groove 300b are respectively communicated with two adjacent annular grooves 300a. In this case, the first metal ring 800 may further include: a portion located within the plurality of communication grooves 300b. In this way, the ability of the metal three-dimensional structure formed by the first metal ring 800 within the transition region 002 of the display panel 000 to absorb the energy of external force impact can be further improved, so that the probability of cracks appearing in the inorganic functional layer 300 under the action of external force impact can be more effectively reduced, the strength of the overall structure of the display panel 000 can be improved, and the reliability of the display panel 000 can be improved.

[0109] Exemplarily, as Figure 7 shown, the plurality of communication grooves 300b located between two adjacent annular grooves 300a may be evenly distributed around the opening region 003. In this way, the strength of the structure near the opening region 003 of the display panel 000 can be improved more evenly, ensuring that each position at the transition region 002 of the display panel 000 is not easily cracked under the action of external force impact, and the reliability of the display panel 000 is improved.

[0110] Please refer to Figure 8 , Figure 8 It is yet another top view of the display panel provided by the present application at the transition region. The plurality of annular grooves 300a and the plurality of communication grooves 300b may be used to enclose a plurality of mesh regions U. The first metal ring 800 may have a plurality of first openings 800a corresponding to the plurality of mesh regions U, and the orthographic projection of the first opening 800a on the substrate 100 is located within the orthographic projection of the mesh region U on the substrate 100. In this case, the first metal ring 800 can form a three-dimensional metal mesh structure within the transition region 002, with a stronger buffering ability against external force impact, so that the probability of cracks appearing in the inorganic functional layer 300 under the action of external force impact can be more effectively reduced, the strength of the overall structure of the display panel 000 can be improved, and the reliability of the display panel 000 can be improved.

[0111] It should be noted that the plurality of communication grooves 300b located between the plurality of annular grooves 300a may have various possible implementation manners. The embodiments of the present application will be schematically described by taking the following two possible implementation manners as examples:

[0112] The first possible implementation manner, please refer to Figure 9 , Figure 9This is another top view of the display panel provided by the present application at the transition region. For any three adjacent annular grooves 300a, the three adjacent annular grooves 300a can be respectively: a first annular groove 300a1, a second annular groove 300a2, and a third annular groove 300a3. Among them, the first annular groove 300a1 can be closer to the opening region 003 than the second annular groove 300a2, and the third annular groove 300a3 can be farther from the opening region 003 than the second annular groove 300a2. The communication groove 300b located between the first annular groove 300a1 and the second annular groove 300a2 can be a first communication groove 300b1, and the communication groove 300b located between the second annular groove 300a2 and the third annular groove 300a3 can be a second communication groove 300b2.

[0113] Among them, multiple first communication grooves 300b1 and multiple second communication grooves 300b2 can correspond to each other, and one end of the first communication groove 300b1 facing the second annular groove 300a2 can be directly communicated with one end of the corresponding second communication groove 300b2 facing the second annular groove 300a2. As Figure 9 shown, the adjacent first annular groove 300a1 and second annular groove 300a2, and two adjacent first communication grooves 300b1 located between the first annular groove 300a1 and the second annular groove 300a2 can be used to enclose a mesh region U. In a possible case, please refer to Figure 10 , Figure 10 This is another top view of the display panel provided by the present application at the transition region. The first metal ring 800 can have a first opening 800a corresponding to the mesh region U. The adjacent second annular groove 300a2 and third annular groove 300a3, and two adjacent second communication grooves 300b2 located between the second annular groove 300a2 and the third annular groove 300a3 can also be used to enclose a mesh region U. In a possible case, as Figure 10 shown, the first metal ring 800 can also have a first opening 800a corresponding to the mesh region U. When one end of the first communication groove 300b1 facing the second annular groove 300a2 is directly communicated with one end of the corresponding second communication groove 300b2 facing the second annular groove 300a2, the first opening 800a of the first metal ring 800 corresponding to the mesh region U located between the first annular groove 300a1 and the second annular groove 300a2, and the first opening 800a of the first metal ring 800 corresponding to the mesh region U located between the second annular groove 300a2 and the third annular groove 300a3 can correspond to each other one by one.

[0114] The second possible implementation manner, please refer to Figure 11 , Figure 11It is another top view of the display panel provided by the present application at the transition region. A plurality of first communication grooves 300b1 and a plurality of second communication grooves 300b2 can correspond to each other, and the plurality of first communication grooves 300b1 and the plurality of second communication grooves 300b2 are alternately arranged in the circumferential direction of the opening region 003.

[0115] Please refer to Figure 12 , Figure 12 It is another top view of the display panel provided by the present application at the transition region. In the case where a plurality of first communication grooves 300b1 and a plurality of second communication grooves 300b2 are alternately arranged in the circumferential direction of the opening region 003, a first opening 800a in the first metal ring 800 corresponding to the mesh region U located between the first ring groove 300a1 and the second ring groove 300a2, and a first opening 800a in the first metal ring 800 corresponding to the mesh region U located between the second ring groove 300a2 and the third ring groove 300a3 can also be alternately arranged in the circumferential direction of the opening region 003.

[0116] Please refer to Figure 13 and Figure 14 , Figure 13 It is another top view of the display panel provided by the present application at the transition region, Figure 14 is Figure 13 A cross-sectional schematic diagram at DD' in. The display panel 000 may further include: a second metal ring 900, which is distributed in the transition region 002 and is located on the side of at least one inorganic functional layer 300 facing the substrate 100. Exemplarily, the second metal ring 900 may be located on the side of the first inorganic layer 301 facing the substrate 100. The second metal ring 900 is distributed around the opening region 003, and the orthographic projection of the second metal ring 900 on the substrate 100 does not coincide with the orthographic projection of the ring groove 300a on the substrate 100.

[0117] Wherein, the orthographic projection of the second metal ring 900 on the substrate 100 is located within the orthographic projection of the first metal ring 800 on the substrate 100. By adding the second metal ring 900 in the transition region 002 of the display panel 000, the high ductility of the metal can be utilized to further improve the strength of the overall structure of the display panel 000. The first metal ring 800 and the second metal ring 900 can be simultaneously used to absorb the energy generated during an external force impact, thereby further reducing the probability of cracks appearing in the inorganic functional layer 300 under the action of an external force impact and improving the reliability of the display panel 000.

[0118] Please refer to Figure 15 , Figure 16 and Figure 17 , Figure 15 It is another top view of the display panel provided by the present application at the transition region, Figure 16 is Figure 15The enlarged schematic diagram of R1 in the figure, Figure 17 yes Figure 16 A cross-sectional schematic diagram at EE' in FIG. The inorganic functional layer distributed between the first metal ring 800 and the second metal ring 900 may have a first through-groove V1, and the orthographic projection of the first through-groove V1 on the substrate 100 is located within the orthographic projection of the second metal ring 900 on the substrate 100.

[0119] Among them, the first metal ring 800 can overlap with the second metal ring 900 through the first through groove V1. On the one hand, by setting the first through groove V1, the first metal ring 800 can overlap with the second metal ring 900, which can improve the tightness of the metal structure connection in the transition area 002, better improve the strength of the overall structure of the display panel 000, reduce the probability of cracks in the inorganic functional layer 300 under the impact of external force, and improve the reliability of the display panel 000. On the other hand, by setting the first through groove V1, the part of the inorganic functional layer between the first metal ring 800 and the second metal ring 900, which is located on the side of the first through groove V1 facing the opening area 003, can be disconnected from the part of the first through groove V1 on the side away from the opening area 003, and the first metal ring 800 is distributed in the first through groove V1. In this way, even if cracks are generated in the inorganic functional layer between the first metal ring 800 and the second metal ring 900 due to external impact, the first through groove V1 can effectively prevent the cracks from expanding toward the display area 001, thereby avoiding the phenomenon of film separation in the display panel 000 or water vapor in the external environment entering the display area 001 from the opening area 003 along the cracks, thereby improving the reliability of the display panel 000.

[0120] It should be noted that the first metal ring 800 in the display panel 000 can be provided in the same layer as the second touch metal layer 604 and made of the same material, and the second metal ring 900 in the display panel 000 can be provided in the same layer as the first touch metal layer 602 and made of the same material. In this way, the preparation steps of the display panel 000 can be simplified and the cost can be reduced. In this case, the inorganic functional layer 300 distributed between the first metal ring 800 and the second metal ring 900 can be a touch insulating layer 603, and the touch insulating layer 603 can have a first through groove V1, and the orthographic projection of the first through groove V1 on the substrate 100 can be located within the orthographic projection of the second metal ring 900 on the substrate 100, and the first metal ring 800 can overlap with the second metal ring 900 through the first through groove V1.

[0121] like Figure 14As shown, in the display panel 000, the number of the annular grooves 300a can be multiple, and the number of the second metal rings 900 can be at least one. Among them, the orthographic projection of one second metal ring 900 on the substrate 100 is located between the orthographic projections of two adjacent annular grooves 300a on the substrate 100. In this way, it can be ensured that the annular groove 300a can penetrate the entire first inorganic layer 301, the entire second inorganic layer 302, and at least part of the third inorganic layer 303 without being affected by the second metal ring 900. Therefore, it can be ensured that the depth of the annular groove 300a is deep, and the metal three-dimensional structure formed in the transition zone 002 of the display panel 000 has a strong ability to absorb external force impact energy, so that the probability of cracks in the inorganic functional layer 300 under the action of external force can be more effectively reduced, the strength of the overall structure of the display panel 000 is improved, and the reliability of the display panel 000 is improved.

[0122] Please refer to Figure 18 , Figure 18 It is another top view of the display panel provided in the present application at the transition zone. The display panel 000 may also include: a plurality of isolation parts 1000, the plurality of isolation parts 1000 are all located in the transition zone 002, and are all distributed around the opening area 003. The plurality of isolation parts 1000 are nested and distributed in sequence. In this case, the plurality of isolation parts 1000 may all be located on the side of the annular retaining wall 700 close to the opening area 003; or, the plurality of isolation parts 1000 may all be located on the side of the annular retaining wall 700 facing away from the opening area 003; or, the isolation parts 1000 may be distributed on both the side of the annular retaining wall 700 close to the opening area 003 and the side facing away from the opening area 003.

[0123] The isolation portion 1000 is used to separate the light emitting layer 202 and the second electrode layer 203 of the display panel 000 from the portion located in the transition region 002 .

[0124] Since the light-emitting layer 202 contains organic materials, which have strong water absorption, the display panel 000 uses the isolation portion 1000 to isolate the portion of the light-emitting layer 202 located in the transition zone 002, thereby preventing water and oxygen in the external environment from entering the display area 001 along the light-emitting layer 202 from the opening area 003 and affecting the display effect of the display panel 000.

[0125] When the display panel 000 is displaying, the second electrode layer 203 is usually negatively charged. When water and oxygen in the external environment intrude into the transition zone 002 through the opening area 003 of the display panel 000, the water and oxygen intruding into the transition zone 002 will undergo electrolysis under the action of the negatively charged second electrode layer 203 to generate hydrogen ions and hydroxide ions. In addition, since a polarizer for reducing the reflectivity of ambient light is usually provided on the light-emitting side of the display panel 000, and the polarizer is usually made of metal material, the positively charged metal ions (for example, potassium ions) in the polarizer are easily attracted by the negatively charged second electrode layer 203, causing the positively charged metal ions to gather near the part of the second electrode layer 203 located in the transition zone 002. Metal ions are very easy to combine with hydroxide ions, causing the portion of the encapsulation layer 500 located in the transition zone 002 to be in a strong alkaline environment formed by the combination of metal ions and hydroxide ions, which will react with the inorganic material in the encapsulation layer 500, thereby causing holes or expansion in the encapsulation layer 500, affecting the encapsulation effect of the encapsulation layer 500 on the light-emitting device 200, resulting in low reliability of the display panel 000.

[0126] Therefore, the display panel 000 uses the isolation part 1000 to isolate the part of the second electrode layer 203 located in the transition area 002, so that the second electrode layer 203 near the opening area 003 is no longer charged, thereby avoiding electrolytic reaction near the opening area 003 and affecting the packaging effect of the packaging layer 500.

[0127] It should be noted that the isolation portion 1000 in the display panel 000 may have multiple possible implementations. The present application embodiment uses the following three possible implementations as examples for schematic illustration:

[0128] For the first possible implementation, please refer to Figure 19 , Figure 19 yes Figure 18 A cross-sectional schematic diagram at GG' in FIG. 1 . In the case where the substrate 100 of the display panel 000 is a flexible substrate 100, the substrate 100 may include: a first sub-substrate 101, a second sub-substrate 102, and a substrate buffer layer 103 located between the first sub-substrate 101 and the second sub-substrate 102. The first sub-substrate 101 is farther away from the light-emitting device 200 of the display panel 000 than the second sub-substrate 102.

[0129] A portion of the second sub - substrate 102 in the transition region 002 in the display panel 000 may have a plurality of first grooves 102a. The first electrode layer 201 in the display panel 000 may have a plurality of second through - grooves V2 corresponding to the plurality of first grooves 102a. The orthographic projection of the second through - groove V2 on the first sub - substrate 101 is located within the orthographic projection of the corresponding first groove 102a on the first sub - substrate 101. In this case, a first groove 102a and a corresponding second through - groove V2 form an isolation portion 1000. Thus, since both the light - emitting layer 202 and the second electrode layer 203 can be formed by an integral evaporation process, setting the isolation portion 1000 in the transition region 002 can ensure that the portion of the light - emitting layer 202 within the first groove 102a is disconnected from the portion outside the first groove 102a, and the portion of the second electrode layer 203 within the first groove 102a is disconnected from the portion outside the first groove 102a.

[0130] For the second possible implementation, please refer to Figure 20 , Figure 20 is Figure 18 Another cross - sectional schematic view at GG' in. The isolation portion 1000 may include a first sub - portion 1001, a second sub - portion 1002, a third sub - portion 1003, a fourth sub - portion 1004, a fifth sub - portion 1005, a sixth sub - portion 1006, a seventh sub - portion 1007, an eighth sub - portion 1008, and a ninth sub - portion 1009 that are stacked in a direction away from the substrate 100.

[0131] Exemplarily, as Figure 3 shown, the display panel 000 may further include: a plurality of pixel driving circuits P. The plurality of pixel driving circuits P may be located on a side of the plurality of light - emitting devices 200 facing the substrate 100 and are electrically connected to the plurality of light - emitting devices 200 one - to - one. Each pixel driving circuit P may be configured to drive the corresponding light - emitting device 200 to emit light. The pixel driving circuit P electrically connected to the light - emitting device 200 in the display panel 000 may include: at least two transistors and at least one storage capacitor.

[0132] Among them, the storage capacitor may include: a first capacitor electrode C1 and a second capacitor electrode C2 that are oppositely arranged. The transistor may include: an active layer Act, a gate G, a source S, and a drain D. The active layer Act may be insulated from the gate G, and both the source S and the drain D may overlap with the active layer Act. And the source S may be electrically connected to a plurality of data lines distributed in the display region 001. In one possible case, as Figure 3As shown, the drain D can be electrically connected to the anode 201a of the light-emitting device 200 through the transfer electrode Z. It should be noted that the transfer electrode Z of the display panel 000 can be a single-layer structure or a multi-layer structure, and the present application does not impose any restrictions thereon. For the convenience of description, the present application takes the drain D of the display panel 000 being electrically connected to the anode 201a of the light-emitting device 200 through a single layer of transfer electrode Z as an example for illustrative description.

[0133] The display panel 000 may further include: a buffer layer 1100 located on the side of the active layer facing the substrate 100, a first gate insulating layer 1200 located between the active layer Act and the gate G, a second gate insulating layer 1300 located between the first capacitor electrode C1 and the second capacitor electrode C2, an interlayer dielectric layer 1400 located between the second capacitor electrode C2 and the source S and drain D layers, a passivation layer 1500 located on the side of the source S and drain D layers facing away from the substrate 100, a first planarization layer 1600 located on the side of the passivation layer 1500 facing away from the substrate 100, and a second planarization layer 1700 located on the side of the transfer electrode Z facing away from the substrate 100.

[0134] To simplify the manufacturing process of the display panel 000, the first sub-part 1001 in the isolation part 1000 can be provided on the same layer and made of the same material as the gate G and the first capacitor electrode C1 in the display panel 000; the second sub-part 1002 in the isolation part 1000 can be provided on the same layer and made of the same material as the second gate insulating layer 1300 in the display panel 000; the third sub-part 1003 in the isolation part 1000 can be provided on the same layer and made of the same material as the second capacitor electrode C2 in the display panel 000; the fourth sub-part 1004 in the isolation part 1000 can be provided on the same layer and made of the same material as the interlayer dielectric layer 1400 in the display panel 000; the fifth sub-part 1005 in the isolation part 1000 can be provided on the same layer and made of the same material as the source S and drain D layers in the display panel 000; the sixth sub-part 1006 in the isolation part 1000 can be provided on the same layer and made of the same material as the first planarization layer 1600 in the display panel 000; the seventh sub-part 1007 in the isolation part 1000 can be provided on the same layer and made of the same material as the transfer electrode Z in the display panel 000; the eighth sub-part 1008 in the isolation part 1000 can be provided on the same layer and made of the same material as the second planarization layer 1700 in the display panel 000; the ninth sub-part 1009 in the isolation part 1000 can be provided on the same layer and made of the same material as the pixel definition layer 400 in the display panel 000.

[0135] Among them, since the sixth sub - part 1006 can be an organic material and the seventh sub - part 1007 is a conductive metal material, after the formation of the seventh sub - part 1007, methods such as gas etching can be used to over - etch the sixth sub - part 1006, and a second groove 1006a is formed on one side of the sixth sub - part 1006 facing the opening area 003 and / or on one side of the sixth sub - part 1006 away from the opening area 003, so that the orthographic projection of the sixth sub - part 1006 on the substrate 100 is located within the orthographic projection of the seventh sub - part 1007 on the substrate 100. In this way, since both the light - emitting layer 202 and the second electrode layer 203 can be formed by a whole - layer evaporation process, by providing the isolation part 1000 in the transition area 002, the second groove 1006a and the height difference between the isolation part 1000 and the two sides of the isolation part 1000 can be utilized to disconnect the part of the light - emitting layer 202 on the side of the isolation part 1000 away from the substrate 100 from the parts of the light - emitting layer 202 on the two sides of the isolation part 1000; the part of the second electrode layer 203 on the side of the isolation part 1000 away from the substrate 100 is disconnected from the parts of the second electrode layer 203 on the two sides of the isolation part 1000. Here, the two sides of the isolation column refer to the side of the isolation column facing the opening area 003 and the side of the isolation column away from the opening area 003.

[0136] It should be noted that in this implementation, since the sixth sub - part 1006 of the isolation part 1000 is an organic material, the sixth sub - part 1006 can have a third through - groove V3, and the seventh sub - part 1007 can overlap with the fifth sub - part 1005 through the third through - groove V3. In this way, it is possible to prevent the sixth sub - part 1006 from connecting with the light - emitting layer 202 on both sides of the isolation part 1000 to form a new water - oxygen intrusion channel, thereby effectively preventing water and oxygen in the external environment from entering the display area 001 from the opening area 003 along the light - emitting layer 202 and the sixth sub - part 1006, and improving the reliability of the display product.

[0137] For the third possible implementation, please refer to Figure 21 , Figure 21 is Figure 18 Another cross - sectional schematic diagram at GG' in

[0138] Exemplarily, the isolation part 1000 may include: a first metal structure 1010, a second metal structure 1011, and a third metal structure 1012 that are stacked, wherein the first metal structure 1010 is closer to the substrate 100 than the third metal structure 1012. When both the side of the isolation part 1000 facing the opening area 003 and the side of the isolation part 1000 facing away from the opening area 003 have the third groove 1011a, the orthographic projection of the second metal structure 1011 on the substrate 100 is located within the orthographic projection of the third metal structure 1012 on the substrate 100, and the boundary of the orthographic projection of the second metal structure 1011 on the substrate 100 does not coincide with the boundary of the orthographic projection of the third metal structure 1012 on the substrate 100. The orthographic projection of the first metal structure 1010 on the substrate 100 may intersect with the orthographic projection of the third metal structure 1012 on the substrate 100.

[0139] In this way, since both the light-emitting layer 202 and the second electrode layer 203 can be formed by an all-layer evaporation process, by providing the third grooves 1011a on both sides of the isolation part 1000, the part of the light-emitting layer 202 located on the side of the isolation part 1000 away from the substrate 100 can be disconnected from the part of the light-emitting layer 202 located on the side of the isolation part 1000 having the third groove 1011a, and the part of the second electrode layer 203 located on the side of the isolation part 1000 away from the substrate 100 can also be disconnected from the part of the second electrode layer 203 located on the side of the isolation part 1000 having the third groove 1011a.

[0140] It should be noted that the isolation part 1000 in other drawings of this application is embodied in the structure in the third possible implementation manner.

[0141] Please refer to Figure 22 、 Figure 23 and Figure 24 , Figure 22 which is another top view of the display panel provided by this application at the transition area, Figure 23 is Figure 22 an enlarged schematic view at R2 in Figure 24 is Figure 23 a cross-sectional schematic view at FF’ in

[0142] As Figure 24 shown, the multiple inorganic functional layers 300 in the display panel 000 are located on the side of the isolation part 1000 away from the substrate 100, and the number of the annular grooves 300a is multiple.

[0143] It should be noted that the positions of the multiple annular grooves 300a in the display panel 000 may have multiple possible implementation manners. Five possible implementation manners are taken as examples in the embodiments of this application for schematic illustration:

[0144] For the first possible implementation, please refer to Figure 25 , Figure 25 FIG. Figure 25 is another top view of the display panel provided in the present application at the transition region. The orthographic projection of the plurality of annular grooves 300a on the substrate 100 is located between the orthographic projection of the plurality of isolation portions 1000 on the substrate 100 and the orthographic projection of the opening region 003 on the substrate 100.

[0145] For the second possible implementation, as Figure 24 shown, at least some of the plurality of isolation portions 1000 can correspond to the plurality of annular grooves 300a, and the orthographic projection of the annular groove 300a on the substrate 100 is located within the orthographic projection of the corresponding isolation portion 1000 on the substrate 100. In this case, it can be ensured that the area of the transition region 002 is not too large, so that the area of the display region 001 can be relatively large, and the screen-to-body ratio of the display panel 000 can be improved.

[0146] For the third possible implementation, please refer to Figure 26 , Figure 27 and Figure 28 , FIG. Figure 26 is another top view of the display panel provided in the present application at the transition region, Figure 26 Figure 27 FIG. Figure 27 is Figure 26 an enlarged schematic view of the R3 position in FIG. Figure 26 , Figure 28 FIG. Figure 28 is Figure 27 a cross-sectional schematic view of the HH' position in FIG. Figure 27 . For any one of the annular grooves 300a, the orthographic projection of an annular groove 300a on the substrate 100 is located between the orthographic projections of two adjacent isolation portions 1000 on the substrate 100. In this case, it can also be ensured that the area of the transition region 002 is not too large, so that the area of the display region 001 can be relatively large, and the screen-to-body ratio of the display panel 000 can be improved.

[0147] For the fourth possible implementation, please refer to Figure 29 , Figure 30 and Figure 31 , FIG. Figure 29 is another top view of the display panel provided in the present application at the transition region, Figure 29 Figure 30 FIG. Figure 30 is Figure 29 an enlarged schematic view of the R4 position in FIG. Figure 29 , Figure 31 FIG. Figure 31 is Figure 30A schematic cross-sectional view at II' in the middle. Among the multiple annular grooves 300a of the display panel 000, there may be a part of the annular grooves 300a whose orthographic projection on the substrate 100 is located between the orthographic projection of the multiple isolation parts 1000 on the substrate 100 and the orthographic projection of the opening area 003 on the substrate 100; another part of the annular grooves 300a corresponds to at least some of the multiple isolation parts 1000, and the orthographic projection of the annular groove 300a on the substrate 100 is located within the orthographic projection of the corresponding isolation part 1000 on the substrate 100. In this case, it can not only ensure that the area of the transition region 002 is not too large, so that the area of the display region 001 can be relatively large, improving the screen-to-body ratio of the display panel 000; but also ensure that the number of the annular grooves 300a is relatively large. Since at least part of the first metal ring 800 is located within the annular grooves 300a, the more the number of the annular grooves 300a, the better the effect of using the first metal ring 800 to improve the strength of the overall structure of the display panel 000, and the probability of cracks in the inorganic functional layer 300 under the action of external force impact can be more effectively reduced, improving the reliability of the display panel 000.

[0148] The fifth possible implementation manner, please refer to Figure 32 、 Figure 33 and Figure 34 , Figure 32 is another top view of the display panel provided by the present application at the transition region, Figure 33 is Figure 32 the enlarged schematic view at R5 in Figure 34 is Figure 33 a schematic cross-sectional view at JJ' in the middle. Among the multiple annular grooves 300a of the display panel 000, there may be a part of the annular grooves 300a whose orthographic projection on the substrate 100 is located between the orthographic projection of the multiple isolation parts 1000 on the substrate 100 and the orthographic projection of the opening area 003 on the substrate 100; for any one of the other part of the annular grooves 300a, the orthographic projection of an annular groove 300a on the substrate 100 is located between the orthographic projections of two adjacent isolation parts 1000 on the substrate 100. In this case, it can not only ensure that the area of the transition region 002 is not too large, so that the area of the display region 001 can be relatively large, improving the screen-to-body ratio of the display panel 000; but also ensure that the number of the annular grooves 300a is relatively large. Since at least part of the first metal ring 800 is located within the annular grooves 300a, the more the number of the annular grooves 300a, the better the effect of using the first metal ring 800 to improve the strength of the overall structure of the display panel 000, and the probability of cracks in the inorganic functional layer 300 under the action of external force impact can be more effectively reduced, improving the reliability of the display panel 000.

[0149] Such as Figure 34As shown, the touch layer 600 in the display panel 000 may further include: a touch organic layer 605, which is located on the side of the second touch metal layer 604 and the first metal ring 800 facing away from the substrate 100. The touch organic layer 605 can not only improve the flatness of the display panel 000, but also protect film layers such as the second touch metal layer 604 in the display panel 000. Exemplarily, the manufacturing material of the touch organic layer 605 can be thermosetting or photocuring organic materials such as acrylate and epoxy resin.

[0150] In summary, the display panel provided by the present application includes: a substrate, and a light-emitting device, a first metal ring, and multiple inorganic functional layers located on one side of the substrate. Since at least a part of the at least one layer of the multiple inorganic functional layers located in the transition region has a ring groove, and the ring groove is distributed around the opening region, at least a part of the first metal ring is located in the ring groove. On the one hand, a metal three-dimensional structure can be formed in the transition region of the display panel. Since metal has good ductility, when the display panel is impacted by an external force, the first metal ring can absorb the energy of the external force impact, reducing the probability of cracks appearing in the inorganic functional layer under the action of the external force impact, so that the strength of the overall structure of the display panel can be improved by using the high ductility of the metal. On the other hand, even if cracks are generated in the part of the inorganic functional layer located in the transition region under the action of an external force impact, the ring groove can effectively block the cracks from spreading towards the display region, thus avoiding the phenomenon of film layer separation in the display panel or water vapor in the external environment entering the display region along the cracks from the opening region, and improving the reliability of the display panel.

[0151] The present application also provides a display device, which may include: a power supply component, and a display panel 000 electrically connected to the power supply component, and the display panel 000 may include any of the display panels 000 given above. The display device may be any product or component with a display function such as a mobile phone, a tablet computer, a television, an advertising machine, a display screen, a digital photo frame, etc.

[0152] It should be noted that in the drawings, the dimensions of layers and regions may be exaggerated for clarity of illustration. Also, it can be understood that when an element or layer is referred to as being "on" another element or layer, it can be directly on the other element, or there may be an intermediate layer. Additionally, it can be understood that when an element or layer is referred to as being "under" another element or layer, it can be directly under the other element, or there may be more than one intermediate layer or element. Further, it can be understood that when a layer or element is referred to as being "between" two layers or two elements, it can be the only layer between the two layers or two elements, or there may be more than one intermediate layer or element. Similar reference numerals throughout indicate similar elements.

[0153] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "plural" refers to two or more, unless otherwise clearly defined.

[0154] The above are only optional embodiments of this application and are not intended to limit this application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application shall be included within the protection scope of this application.

Claims

1. A display panel, characterized in that: The display panel has: a display area, a transition area and an opening area, wherein the display area is located at the periphery of the opening area, and the transition area is located between the display area and the opening area; the display panel includes: a substrate, and a light-emitting device, a first metal ring and a multi-layer inorganic functional layer located on one side of the substrate; The light emitting device is located in the display area; The multi-layer inorganic functional layer is located on a side of the light-emitting device away from the substrate, and a portion of at least one layer of the inorganic functional layer located in the transition region has an annular groove, and the annular groove is distributed around the opening region; The first metal ring is distributed in the transition region and is located on a side of the multi-layer inorganic functional layer facing away from the substrate, and at least a portion of the first metal ring is located in the ring groove.

2. The display panel according to claim 1, characterized in that: The inorganic functional layer farthest from the substrate among the multiple inorganic functional layers is the first inorganic layer; The annular groove penetrates the entire first inorganic layer at least in a direction perpendicular to the substrate.

3. The display panel according to claim 2, characterized in that: The inorganic functional layer adjacent to the first inorganic layer in the multi-layer inorganic functional layer is a second inorganic layer, and the inorganic functional layer located on the side of the second inorganic layer away from the first inorganic layer in the multi-layer inorganic functional layer is a third inorganic layer; The annular groove also penetrates the entire second inorganic layer and at least a portion of the third inorganic layer in a direction perpendicular to the substrate.

4. The display panel according to any one of claims 1 to 3, characterized in that: There are multiple annular grooves, and the multiple annular grooves are nested and distributed in sequence; The orthographic projection of the first metal ring on the substrate covers the orthographic projections of a plurality of the annular grooves on the substrate, and the orthographic projection of the first metal ring on the substrate includes a portion distributed between the orthographic projections of two adjacent annular grooves on the substrate.

5. The display panel according to claim 4, characterized in that: The portion of at least one of the inorganic functional layers located in the transition zone further comprises: a plurality of connecting grooves located between two adjacent annular grooves, and two ends of the connecting grooves are respectively connected to the two adjacent annular grooves.

6. The display panel according to claim 5, characterized in that: The plurality of annular grooves and the plurality of connecting grooves are used to enclose a plurality of mesh areas; The first metal ring has a plurality of first openings corresponding to the plurality of mesh regions, and the orthographic projections of the first openings on the substrate are located within the orthographic projections of the mesh regions on the substrate.

7. The display panel according to claim 5 or 6, characterized in that: For any three adjacent annular grooves, the three adjacent annular grooves are respectively: a first annular groove, a second annular groove and a third annular groove, the first annular groove is closer to the opening area than the second annular groove, and the third annular groove is farther away from the opening area than the second annular groove; The communicating groove between the first annular groove and the second annular groove is a first communicating groove, and the communicating groove between the second annular groove and the third annular groove is a second communicating groove; Among them, multiple first connecting grooves and multiple second connecting grooves correspond to each other, and the first connecting groove faces one end of the second annular groove and is directly connected with the corresponding second connecting groove facing one end of the second annular groove; or, multiple first connecting grooves and multiple second connecting grooves are alternately arranged in the circumferential direction of the opening area.

8. The display panel according to any one of claims 1-3, 5-6, characterized in that: The display panel further includes: a second metal ring, which is distributed in the transition area and located on a side of at least one layer of the inorganic functional layer facing the substrate; the second metal ring is distributed around the opening area, and the orthographic projection of the second metal ring on the substrate does not overlap with the orthographic projection of the ring groove on the substrate; The orthographic projection of the second metal ring on the substrate is located within the orthographic projection of the first metal ring on the substrate.

9. The display panel according to claim 8, characterized in that: The inorganic functional layer distributed between the first metal ring and the second metal ring has a first through groove, and the orthographic projection of the first through groove on the substrate is located within the orthographic projection of the second metal ring on the substrate; Wherein, the first metal ring is overlapped with the second metal ring through the first through groove.

10. The display panel according to claim 8, characterized in that: The number of the ring grooves is multiple, and the number of the second metal ring is at least one; Wherein, an orthographic projection of one of the second metal rings on the substrate is located between the orthographic projections of two adjacent ring grooves on the substrate.

11. The display panel according to any one of claims 1-3, 5-6, 9-10, characterized in that: The display panel further comprises: a plurality of isolation parts; the plurality of isolation parts are all located in the transition area and are distributed around the opening area; the plurality of isolation parts are nested and distributed in sequence; The display panel further comprises: a first electrode layer, a light-emitting layer, and a second electrode layer which are stacked; parts of the first electrode layer, the light-emitting layer, and the second electrode layer located in the display area are used to form a plurality of the light-emitting devices; The isolation portion is used to separate the light-emitting layer and the portion of the second electrode layer located in the transition region.

12. The display panel according to claim 11, characterized in that: The multi-layer inorganic functional layer is located on a side of the isolation portion away from the substrate; the number of the annular grooves is multiple; The orthographic projections of the plurality of annular grooves on the substrate are located between the orthographic projections of the plurality of isolation portions on the substrate and the orthographic projection of the opening area on the substrate; Alternatively, at least some of the plurality of isolation portions correspond to the plurality of annular grooves, and the orthographic projections of the annular grooves on the substrate are located within the orthographic projections of the corresponding isolation portions on the substrate; Alternatively, an orthographic projection of one of the annular grooves on the substrate is located between orthographic projections of two adjacent isolation portions on the substrate.

13. The display panel according to claims 1-3, 5-6, 9-10, 12, characterized in that: The display panel further includes: an encapsulation layer and a touch layer; The encapsulation layer is located on a side of the light-emitting device away from the substrate, and the encapsulation layer at least includes: a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer stacked in a direction away from the substrate; The touch layer is located on a side of the encapsulation layer away from the substrate, and the touch layer at least includes: a touch buffer layer, a first touch metal layer, a touch insulating layer, and a second touch metal layer stacked in a direction away from the substrate; The multiple inorganic functional layers along the direction away from the substrate are: the first inorganic packaging layer, the second inorganic packaging layer, the touch buffer layer and the touch insulation layer; the first metal ring and the second touch metal layer are arranged in the same layer and made of the same material.

14. The display panel according to claim 13, characterized in that: The display panel further includes: a second metal ring, which is distributed in the transition area and located on a side of at least one layer of the inorganic functional layer facing the substrate; the second metal ring is distributed around the opening area, and the orthographic projection of the second metal ring on the substrate does not overlap with the orthographic projection of the ring groove on the substrate; The second metal ring is disposed in the same layer as the first touch metal layer and is made of the same material.

15. A display device, characterized in that: include: A power supply component, and a display panel connected to the power supply component, wherein the display panel is the display panel according to any one of claims 1 to 14.

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