Display panel and display device

Abstract

The present application relates to the technical field of display, and discloses a display panel and a display device. The display panel provided by the present application comprises: a substrate, and light-emitting devices, a first metal ring and a multilayer inorganic functional layer that are located on one side of the substrate. Since the portion of at least one layer of the multilayer inorganic functional layer located in a transition region is provided with annular grooves, the annular grooves are distributed around a hole region, and the first metal ring is at least partially located in the annular grooves, a three-dimensional metal structure can be formed in the transition region of the display panel. Since metals have good ductility, when the display panel is subjected to an external impact, the first metal ring can absorb the energy of the external impact, reducing the probability of cracks occurring in the inorganic functional layer under the external impact, thereby improving the overall structural strength of the display panel by using the high ductility of metals, and improving the reliability of the display panel.

Description

Display panel and display device

[0001] This application claims priority to Chinese Patent Application No. 202510221481.7, filed on February 26, 2025, entitled “Display Panel and Display Device”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of display technology, and in particular to a display panel and display device. Background Technology

[0003] In pursuit of a full-screen design, display panels incorporate perforations within the display area to house sensors such as cameras, thereby reducing screen bezels and increasing the screen-to-body ratio. This type of display panel features a perforation area, a transition area, and a display area, with the display area surrounding the perforation area and the transition area located between them.

[0004] Some of the film layers in the display panel are made of inorganic materials. Inorganic materials have high rigidity and poor plasticity, making them prone to cracking when the display panel is subjected to external forces, and even film layer separation, resulting in low reliability of the display panel. Summary of the Invention

[0005] This application provides a display panel and a display device. It can solve the problem of low reliability in existing display panels. The technical solution is as follows:

[0006] On one hand, a display panel is provided, characterized in that the display panel has: a display area, a transition area and an aperture area, the display area being located around the aperture area, and the transition area being located between the display area and the aperture area; the display panel includes: a substrate, and a light-emitting device, a first metal ring and a multilayer inorganic functional layer located on one side of the substrate;

[0007] The light-emitting device is located within the display area;

[0008] The multilayer inorganic functional layer is located on the side of the light-emitting device away from the substrate, and at least one of the inorganic functional layers has an annular groove in the portion located in the transition region, the annular groove being distributed around the opening region;

[0009] The first metal ring is distributed within the transition region and is located on the side of the multilayer inorganic functional layer opposite to the substrate, with at least a portion of the first metal ring located within the ring groove.

[0010] Optionally, the inorganic functional layer that is furthest from the substrate in the multilayer inorganic functional layers is the first inorganic layer;

[0011] The annular groove extends through the entire first inorganic layer at least in a direction perpendicular to the substrate.

[0012] Optionally, the inorganic functional layer distributed adjacent to the first inorganic layer in the multi-layer inorganic functional layer is the 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 the third inorganic layer.

[0013] The annular groove also penetrates the entire second inorganic layer in a direction perpendicular to the substrate, and penetrates at least a portion of the third inorganic layer.

[0014] Optionally, there may be multiple annular grooves, which are nested sequentially.

[0015] Wherein, the orthographic projection of the first metal ring on the substrate covers the orthographic projections of the plurality of annular grooves on the substrate, and there is a portion of the orthographic projection of the first metal ring on the substrate distributed between the orthographic projections of two adjacent annular grooves on the substrate.

[0016] Optionally, at least one inorganic functional layer located within the transition zone further comprises: a plurality of connecting slots located between two adjacent annular slots, the two ends of which are respectively connected to the two adjacent annular slots.

[0017] Optionally, the plurality of annular grooves and the plurality of communicating grooves are used to form a plurality of mesh areas;

[0018] The first metal ring has a plurality of first openings corresponding to the plurality of mesh regions, wherein the orthographic projection of the first openings on the substrate lies within the orthographic projection of the mesh regions on the substrate.

[0019] Optionally, for any three adjacent annular grooves, the three adjacent annular grooves are: a first annular groove, a second annular groove, and a third annular groove, wherein 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.

[0020] The connecting groove located between the first annular groove and the second annular groove is the first connecting groove, and the connecting groove located between the second annular groove and the third annular groove is the second connecting groove;

[0021] In this configuration, multiple first connecting slots and multiple second connecting slots correspond to each other, with one end of the first connecting slot facing the second annular groove directly connected to the end of the corresponding second connecting slot facing the second annular groove; or, multiple first connecting slots and multiple second connecting slots are alternately arranged in the circumferential direction of the opening area.

[0022] Optionally, the display panel further includes: a second metal ring, the second metal ring being distributed within the transition region and located on the side of at least one inorganic functional layer facing the substrate; the second metal ring being distributed around the opening region, and the orthographic projection of the second metal ring on the substrate not coinciding with the orthographic projection of the ring groove on the substrate;

[0023] Wherein, the orthographic projection of the second metal ring on the substrate lies within the orthographic projection of the first metal ring on the substrate.

[0024] Optionally, the inorganic functional layer distributed between the first metal ring and the second metal ring has a first through groove, the orthographic projection of the first through groove on the substrate being located within the orthographic projection of the second metal ring on the substrate;

[0025] The first metal ring overlaps with the second metal ring through the first through groove.

[0026] Optionally, there may be multiple annular grooves, and at least one second metal ring;

[0027] In this configuration, the orthographic projection of one of the second metal rings onto the substrate lies between the orthographic projections of two adjacent ring grooves onto the substrate.

[0028] Optionally, the display panel further includes: a plurality of isolation portions; the plurality of isolation portions are all located within the transition area and are distributed around the opening area; the plurality of isolation portions are nested sequentially.

[0029] The display panel further includes: a first electrode layer, a light-emitting layer, and a second electrode layer stacked together; the portions of the first electrode layer, the light-emitting layer, and the second electrode layer located within the display area are used to form a plurality of light-emitting devices;

[0030] The isolation portion is used to isolate the portion of the light-emitting layer and the second electrode layer located within the transition region.

[0031] Optionally, the multilayer inorganic functional layer is located on the side of the isolation portion away from the substrate; the number of annular grooves is multiple;

[0032] The orthographic projection of the plurality of annular grooves on the substrate is located between the orthographic projection of the plurality of isolation portions on the substrate and the orthographic projection of the opening area on the substrate;

[0033] Alternatively, at least a portion of the plurality of isolation portions corresponds to a plurality of the annular grooves, wherein the orthographic projection of the annular groove on the substrate lies within the orthographic projection of the corresponding isolation portion on the substrate;

[0034] Alternatively, the orthographic projection of one of the annular grooves on the substrate lies between the orthographic projections of two adjacent isolation portions on the substrate.

[0035] Optionally, the display panel further includes: an encapsulation layer and a touch layer;

[0036] The encapsulation layer is located on the side of the light-emitting device away from the substrate, and the encapsulation layer includes at least: a first inorganic encapsulation layer, an organic encapsulation layer and a second inorganic encapsulation layer stacked in a direction away from the substrate;

[0037] The touch layer is located on the side of the encapsulation layer away from the substrate, and the touch layer includes at least: a touch buffer layer, a first touch metal layer, a touch insulating layer and a second touch metal layer stacked along the direction away from the substrate;

[0038] The multilayer inorganic functional layers, along the direction away from the substrate, are: 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 disposed in the same layer and are made of the same material.

[0039] Optionally, the display panel further includes: a second metal ring, the second metal ring being distributed within the transition region and located on the side of at least one inorganic functional layer facing the substrate; the second metal ring being distributed around the opening region, and the orthographic projection of the second metal ring on the substrate not coinciding with the orthographic projection of the ring groove on the substrate;

[0040] The second metal ring is disposed in the same layer as the first touch metal layer and is made of the same material.

[0041] On the other hand, a display device is provided, characterized in that it includes: a power supply component and a display panel connected to the power supply component, wherein the display panel is any of the display panels described above.

[0042] The beneficial effects of the technical solutions provided in this application include at least the following:

[0043] Because at least one layer of the multilayer inorganic functional layer has an annular groove in the transition zone, and the annular groove is distributed around the opening area, with at least a portion of the first metal ring located within the annular groove, a three-dimensional metal structure can be formed within the transition zone of the display panel. Since metal has good ductility, when the display panel is subjected to an external impact, the first metal ring can absorb the energy of the impact, reducing the probability of cracks appearing in the inorganic functional layer under the impact. This allows the high ductility of the metal to be used to improve the overall structural strength of the display panel. Furthermore, even if cracks appear in the portion of the inorganic functional layer located in the transition zone under an external impact, the annular groove can effectively prevent the cracks from propagating towards the display area. This avoids film separation or moisture from the external environment entering the display area from the opening area along the cracks, thus improving the reliability of the display panel. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 is a top view of a display panel provided in an embodiment of this application;

[0046] Figure 2 is a cross-sectional view of the display panel shown in Figure 1 at AA'.

[0047] Figure 3 is a cross-sectional schematic diagram of the display panel shown in Figure 1 at BB';

[0048] Figure 4 is a top view of a display panel provided in this application at the transition area;

[0049] Figure 5 is another top view of the display panel provided in this application in the transition area;

[0050] Figure 6 is a schematic cross-sectional view of CC' in Figure 5;

[0051] Figure 7 is another top view of the display panel provided in this application in the transition area;

[0052] Figure 8 is another top view of the display panel provided in this application in the transition area;

[0053] Figure 9 is another top view of the display panel provided in this application in the transition area;

[0054] Figure 10 is another top view of the display panel provided in this application in the transition area;

[0055] Figure 11 is another top view of the display panel provided in this application in the transition area;

[0056] Figure 12 is another top view of the display panel provided in this application in the transition area;

[0057] Figure 13 is another top view of the display panel provided in this application in the transition area;

[0058] Figure 14 is a schematic cross-sectional view of DD' in Figure 13;

[0059] Figure 15 is another top view of the display panel provided in this application in the transition area;

[0060] Figure 16 is an enlarged schematic diagram of point R1 in Figure 15;

[0061] Figure 17 is a schematic cross-sectional view of EE' in Figure 16;

[0062] Figure 18 is another top view of the display panel provided in this application in the transition area;

[0063] Figure 19 is a schematic cross-sectional view of GG' in Figure 18;

[0064] Figure 20 is another cross-sectional view of GG' in Figure 18;

[0065] Figure 21 is another cross-sectional schematic diagram of GG' in Figure 18;

[0066] Figure 22 is another top view of the display panel provided in this application in the transition area;

[0067] Figure 23 is an enlarged schematic diagram of point R2 in Figure 22;

[0068] Figure 24 is a schematic cross-sectional view of FF' in Figure 23;

[0069] Figure 25 is another top view of the display panel provided in this application in the transition area;

[0070] Figure 26 is another top view of the display panel provided in this application in the transition area;

[0071] Figure 27 is an enlarged view of point R3 in Figure 26;

[0072] Figure 28 is a schematic cross-sectional view of HH' in Figure 27;

[0073] Figure 29 is another top view of the display panel provided in this application in the transition area;

[0074] Figure 30 is an enlarged schematic diagram of point R4 in Figure 29;

[0075] Figure 31 is a schematic cross-sectional view of point II' in Figure 30;

[0076] Figure 32 is another top view of the display panel provided in this application in the transition area;

[0077] Figure 33 is an enlarged schematic diagram of R5 in Figure 32;

[0078] Figure 34 is a schematic cross-sectional view of JJ' in Figure 33. Detailed Implementation

[0079] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0080] Please refer to Figure 1, which is a top view of a display panel provided in an embodiment of this application. The display panel 000 has: a display area 001, a transition area 002, and an opening area 003. The display area 001 is located around the opening area 003, and the transition area 002 is located between the display area 001 and the opening area 003.

[0081] Please refer to Figures 2 and 3. Figure 2 is a cross-sectional view of the display panel shown in Figure 1 at AA', and Figure 3 is a cross-sectional view of the display panel shown in Figure 1 at BB'. The display panel 000 may include: a substrate 100, and a light-emitting device 200 and a multilayer inorganic functional layer 300 located on one side of the substrate 100.

[0082] The display panel 000 contains multiple light-emitting devices 200, and these multiple light-emitting devices 200 can be distributed within the display area 001.

[0083] As shown in Figure 3, 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 may have multiple pixel openings K corresponding one-to-one with multiple light-emitting devices 200, with each light-emitting device 200 located within its corresponding pixel opening K. The display panel 000 may further include: a first electrode layer 201 located 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 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. The first electrode layer 201 includes multiple first electrodes 201a corresponding one-to-one with the multiple pixel openings K.

[0084] It should be noted that the portion of the light-emitting layer 202 distributed within each pixel opening K can contact the corresponding first electrode 201a. In this case, for any pixel opening K, the first electrode 201a corresponding to this pixel opening K, and the portions of the light-emitting layer 202 and the second electrode layer 203 distributed within this pixel opening K, can constitute a light-emitting device 200.

[0085] The multilayer inorganic functional layer 300 in the display panel 000 is located on the side of the light-emitting device 200 away from the substrate 100. As shown in FIG3, the display panel 000 may also include an encapsulation layer 500 and a touch layer 600.

[0086] The encapsulation layer 500 in the display panel 000 is located on the side of the light-emitting device 200 away from the substrate 100, and the encapsulation layer 500 may include at least: a first inorganic encapsulation layer 501, an organic encapsulation layer 502, and a second inorganic encapsulation layer 503 stacked along a direction away from the substrate 100. Here, the first inorganic encapsulation layer 501 can contact the side of the second electrode layer 203 away from the substrate 100, that is, the first inorganic encapsulation layer 501 can cover multiple light-emitting devices 200. The organic encapsulation layer 502 can ensure good flatness of the portion of the display panel 000 located within the display area 001, so as to ensure good performance of other functional layers (e.g., touch layer) subsequently formed on the portion of the encapsulation layer 500 located within the display area 001. The second inorganic encapsulation layer 503 can be used to cover the side of the organic encapsulation layer 502 away from the substrate 100. By providing an encapsulation layer 500 in the display panel 000, water and oxygen from the external environment can be prevented from corroding the light-emitting device 200 from the display side of the display panel 000, thereby improving the reliability of the display panel 000.

[0087] However, because the organic encapsulation layer 502 has high fluidity and poor water and oxygen barrier properties, please refer to Figure 4, which is a top view of a display panel provided in this application at the transition area. The display panel 000 may further include an annular barrier 700, which may be located within the transition area 002 and distributed around the opening area 003. The annular barrier 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 enclosed by the annular barrier 700. That is, within the area enclosed by the annular barrier 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.

[0088] Referring again to Figure 3, the touch layer 600 in the display panel 000 is located on the side of the encapsulation layer 500 facing away from the substrate 100, and the touch layer 600 may include at least: a touch buffer layer 601, a first touch metal layer 602, a touch insulating layer 603, and a second touch metal layer 604 stacked in a direction away from the substrate 100. By setting the touch layer 600, the display panel 000 can realize touch function.

[0089] It should be noted that the touch layer 600 may have multiple second openings 600a, which may correspond to multiple pixel openings K in the pixel definition layer 400. The orthographic projection of a pixel opening K onto the substrate 100 lies within the orthographic projection of the corresponding second opening 600a onto the substrate 100. In one possible scenario, the multiple second openings 600a in the touch layer 600 may correspond one-to-one with the multiple pixel openings K in the pixel definition layer 400. As shown in Figure 3, the orthographic projection of the light-emitting device 200 in each pixel opening K onto the substrate 100 may lie within the orthographic projection of the corresponding second opening 600a in the touch layer 600 onto 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 be emitted through its corresponding second opening 600a, thereby ensuring that the display panel 000 can perform touch functions without affecting its normal display.

[0090] Here, the touch buffer layer 601 can contact 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 in the future. The touch buffer layer 601 can also be used to improve the bonding force between the encapsulation layer 500 and the touch layer 600, and buffer the impact force generated during touch operation, improve the firmness of the film layer bonding, thereby ensuring the high reliability of the display panel 000.

[0091] The first touch metal layer 602 and the second touch metal layer 604 are located at least 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 disposed on the same layer, and a connecting electrode 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: a bridging electrode for connecting two adjacent second touch electrodes.

[0092] It should be noted that the bridging electrode and the connecting electrode can be arranged alternately, and they can be insulated from each other by the touch insulating layer 603. One of the first touch electrode and the second touch electrode can be a touch driving electrode, and the other can be a touch sensing electrode. Through the cooperation of the touch driving electrode and the touch sensing electrode, the display panel 000 can achieve touch functionality.

[0093] It should also be noted that both the touch driving electrode and the touch sensing electrode can be mesh electrodes with multiple mesh holes, and the mesh holes in both the touch driving electrode and the touch sensing electrode are part of the second opening 600a.

[0094] The touch buffer layer 601 and the touch insulating layer 603 may also include portions located within the transition region 002, as shown in FIG2. Within the transition region 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.

[0095] Therefore, the multilayer inorganic functional layers 300 in the display panel 000 along the direction away from the substrate 100 may include: a first inorganic encapsulation layer 501, a second inorganic encapsulation layer 503, a touch buffer layer 601, and a touch insulating layer 603, and the portions of the multilayer inorganic functional layers 300 located in the transition region 002 are stacked and in contact with each other. The first inorganic encapsulation layer 501, the second inorganic encapsulation layer 503, and the touch insulating layer 603 can all be made of inorganic materials such as silicon nitride, silicon oxide, or silicon oxynitride.

[0096] Because the opening area 003 of the display panel 000 is easily subjected to external impact, and inorganic materials have high rigidity and poor plasticity, when the display panel 000 is subjected to external impact, the inorganic functional layer 300 near the opening area 003 is prone to cracking. The generation and propagation of cracks will further lead to the separation of the film layer of the display panel 000, and water and oxygen in the external environment will more easily penetrate from the opening area 003 into the display area 001, affecting the display effect of the display panel 000 and resulting in low reliability of the display panel 000.

[0097] Therefore, please refer to Figures 5 and 6. Figure 5 is another top view of the display panel provided in this application at the transition zone, and Figure 6 is a cross-sectional schematic diagram at CC' in Figure 5. In the multilayer inorganic functional layers 300 of the display panel 000, at least one inorganic functional layer 300 has an annular groove 300a located in the transition zone 002, and the annular groove 300a is distributed around the opening zone 003.

[0098] The display panel 000 may further include a first metal ring 800, which is distributed within the transition region 002 and located on the side of the multilayer inorganic functional layer 300 opposite to the substrate 100. At least a portion of the first metal ring 800 is located within a ring groove 300a.

[0099] In this scenario, on the one hand, a three-dimensional metal structure can be formed within the transition zone 002 of the display panel 000. Due to the good ductility of metal, when the display panel 000 is subjected to an external impact, the first metal ring 800 can absorb the energy of the impact, reducing the probability of cracks appearing in the inorganic functional layer 300 under the impact. This allows the high ductility of the metal to be utilized to improve the overall structural strength of the display panel 000. On the other hand, even if cracks appear in the portion of the inorganic functional layer 300 located in the transition zone 002 under the impact, the ring groove 300a can effectively prevent the cracks from propagating towards the display area 001. This avoids film separation in the display panel 000 or moisture from the external environment entering the display area 001 along the cracks from the opening area 003, thus improving the reliability of the display panel 000.

[0100] In summary, the display panel provided in this application includes: a substrate, and a light-emitting device, a first metal ring, and a multilayer inorganic functional layer located on one side of the substrate. Since at least one layer of the multilayer inorganic functional layer has a groove in the transition region, and the groove is distributed around the opening region, and at least a portion of the first metal ring is located within the groove, a three-dimensional metal structure can be formed within the transition region of the display panel. Because metal has good ductility, when the display panel is subjected to an external impact, the first metal ring can absorb the energy of the impact, reducing the probability of cracks appearing in the inorganic functional layer under the impact, thereby utilizing the high ductility of the metal to improve the overall structural strength of the display panel. Furthermore, even if cracks appear in the portion of the inorganic functional layer located in the transition region under the impact, the groove can effectively prevent the cracks from propagating towards the display area, thus avoiding film separation or moisture from the external environment entering the display area from the opening region along the cracks, improving the reliability of the display panel.

[0101] As shown in Figure 6, the inorganic functional layer 300 furthest from the substrate 100 in the multilayer inorganic functional layers 300 can be the first inorganic layer 301. The annular groove 300a penetrates the entire first inorganic layer 301 at least in a direction perpendicular to the substrate 100. For example, the first inorganic layer 301 can be a touch insulating layer 603, and the annular groove 300a penetrates the entire touch insulating layer 603 at least in a direction perpendicular to the substrate 100. This ensures that the annular groove 300a has a certain depth, and at least a portion of the first metal ring 800 is located within the annular groove 300a, effectively improving the overall structural strength of the display panel 000 and thus enhancing its reliability.

[0102] In the multilayer inorganic functional layer 300, the inorganic functional layer 300 adjacent to the first inorganic layer 301 can be a 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 can be a third inorganic layer 303. The annular groove 300a can also penetrate the entire second inorganic layer 302 and at least a portion of the third inorganic layer 303 in a direction perpendicular to the substrate 100.

[0103] That is, the annular groove 300a can have several possible implementations. In one possibility, the annular groove 300a can penetrate the entire first inorganic layer 301 and at least a portion of the second inorganic layer 302 in a direction perpendicular to the substrate 100. In another possibility, the annular groove 300a can penetrate the entire first inorganic layer 301 and the entire second inorganic layer 302 in a direction perpendicular to the substrate 100. In yet another possibility, the annular groove 300a can penetrate the entire first inorganic layer 301 and the entire second inorganic layer 302 in a direction perpendicular to the substrate 100 and at least a portion of the third inorganic layer 303.

[0104] For example, the second inorganic layer 302 can be the touch buffer layer 601 in the display panel 000, and the third inorganic layer 303 can be the second inorganic encapsulation layer 503 in the display panel 000.

[0105] The multilayer inorganic functional layer 300 may further include a fourth inorganic layer 304, which is located on the side of the third inorganic layer 303 opposite to the second inorganic layer 302. For example, the fourth inorganic layer 304 may be the first inorganic encapsulation layer 501 in the display panel 000.

[0106] It should be noted that in order to ensure that the encapsulation effect of the display panel 000 is not affected, the integrity of the first inorganic encapsulation layer 501 and at least part of the second inorganic encapsulation layer 503 must be guaranteed. That is, the first inorganic encapsulation layer 501 and at least part of the second inorganic encapsulation layer 503 shall not be penetrated by the annular groove 300a, so as to avoid the encapsulation failure causing moisture in the external environment to enter the display area 001 and damage the light-emitting device 200, thus ensuring the reliability and yield of the display panel 000.

[0107] Understandably, under the premise of ensuring good encapsulation of the display panel 000, since at least a portion of the first metal ring 800 is located within the ring groove 300a, the deeper the ring groove 300a, the stronger the ability of the three-dimensional metal structure formed in the transition area 002 of the display panel 000 to absorb external impact energy. Therefore, it can more effectively reduce the probability of the inorganic functional layer 300 cracking under external force, improve the overall structural strength of the display panel 000, and improve the reliability of the display panel 000.

[0108] In this embodiment, as shown in FIG6, there can be multiple annular grooves 300a, which are nested sequentially. At least a portion of the first metal ring 800 is located within the multiple annular grooves 300a. In one possible case, the orthographic projection of the first metal ring 800 on the substrate 100 can cover the orthographic projections 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 projections of the multiple annular grooves 300a on the substrate 100, and the orthographic projection of the first metal ring 800 on the substrate 100 also includes portions distributed between the orthographic projections of two adjacent annular grooves 300a on the substrate 100. Thus, on the one hand, the area of ​​the first metal ring 800 located in the transition region 002 is larger, and the first metal ring 800 has a stronger ability to absorb external impact energy. Therefore, it can more effectively reduce the probability of cracks appearing in the inorganic functional layer 300 under external impact, improve the overall structural strength of the display panel 000, and improve the reliability of the display panel 000. On the other hand, it can also simplify the manufacturing process of the display panel and improve production efficiency.

[0109] Please refer to Figure 7, which is another top view of the display panel provided in this application at the transition zone. The portion of at least one inorganic functional layer 300 of the display panel 000 located within the transition zone 002 further includes: a plurality of connecting grooves 300b located between two adjacent annular grooves 300a, with both ends of the connecting grooves 300b respectively connected to the two adjacent annular grooves 300a. In this case, the first metal ring 800 may further include: a portion located within the plurality of connecting grooves 300b. This further enhances the ability of the three-dimensional metal structure formed by the first metal ring 800 within the transition zone 002 of the display panel 000 to absorb external impact energy, thereby more effectively reducing the probability of cracks appearing in the inorganic functional layer 300 under external impact, improving the overall structural strength of the display panel 000, and enhancing the reliability of the display panel 000.

[0110] For example, as shown in Figure 7, multiple connecting grooves 300b located between two adjacent annular grooves 300a can be evenly distributed around the opening area 003. In this way, the strength of the structure near the opening area 003 of the display panel 000 can be improved in a relatively balanced manner, ensuring that each position in the transition area 002 of the display panel 000 is not prone to cracking under the impact of external forces, thereby improving the reliability of the display panel 000.

[0111] Please refer to Figure 8, which is another top view of the display panel provided in this application at the transition zone. Multiple annular grooves 300a and multiple connecting grooves 300b can be used to form multiple mesh regions U. The first metal ring 800 can have multiple first openings 800a corresponding to the multiple mesh regions U. The orthographic projection of the first openings 800a on the substrate 100 lies within the orthographic projection of the mesh regions U on the substrate 100. In this case, the first metal ring 800 can form a three-dimensional metal mesh structure within the transition zone 002, providing stronger buffering capacity against external impacts. This can more effectively reduce the probability of cracks appearing in the inorganic functional layer 300 under external impacts, improve the overall structural strength of the display panel 000, and enhance the reliability of the display panel 000.

[0112] It should be noted that the multiple connecting grooves 300b located between the multiple annular grooves 300a can have various possible implementations. This application embodiment illustrates the following two possible implementations as examples:

[0113] For a first possible implementation, please refer to Figure 9, which is another top view of the display panel provided in this application at the transition area. 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. The first annular groove 300a1 can be closer to the opening area 003 relative to the second annular groove 300a2, and the third annular groove 300a3 can be farther away from the opening area 003 relative to the second annular groove 300a2. The connecting groove 300b located between the first annular groove 300a1 and the second annular groove 300a2 can be the first connecting groove 300b1, and the connecting groove 300b located between the second annular groove 300a2 and the third annular groove 300a3 can be the second connecting groove 300b2.

[0114] The plurality of first connecting grooves 300b1 and the plurality of second connecting grooves 300b2 can correspond to each other, and the end of the first connecting groove 300b1 facing the second annular groove 300a2 can be directly connected to the end of the corresponding second connecting groove 300b2 facing the second annular groove 300a2. As shown in Figure 9, the adjacent first annular grooves 300a1 and second annular grooves 300a2, as well as the two adjacent first connecting grooves 300b1 located between the first annular grooves 300a1 and second annular grooves 300a2, can be used to form a mesh area U. In one possible case, please refer to Figure 10, which is another top view of the display panel provided in this application at the transition area, the first metal ring 800 can have a first opening 800a corresponding to the mesh area U. The adjacent second annular grooves 300a2 and 300a3, and the two adjacent second connecting grooves 300b2 located between the second annular grooves 300a2 and 300a3, can also be used to form a mesh region U. In one possible case, as shown in FIG10, the first metal ring 800 may also have a first opening 800a corresponding to the mesh region U. When the end of the first connecting groove 300b1 facing the second annular groove 300a2 is directly connected to the end of the corresponding second connecting groove 300b2 facing the second annular groove 300a2, the first opening 800a in the first metal ring 800 corresponding to the mesh region U located between the first annular grooves 300a1 and 300a2, and the first opening 800a in the first metal ring 800 corresponding to the mesh region U located between the second annular grooves 300a2 and 300a3 can correspond one-to-one.

[0115] For a second possible implementation, please refer to Figure 11, which is another top view of the display panel provided in this application in the transition area. Multiple first connecting slots 300b1 and multiple second connecting slots 300b2 can correspond to each other, and the multiple first connecting slots 300b1 and multiple second connecting slots 300b2 are alternately arranged in the circumferential direction of the opening area 003.

[0116] Please refer to Figure 12, which is another top view of the display panel provided in this application at the transition area. When multiple first connecting slots 300b1 and multiple second connecting slots 300b2 are alternately arranged in the circumferential direction of the opening area 003, the first opening 800a in the first metal ring 800 corresponding to the mesh area U located between the first ring slot 300a1 and the second ring slot 300a2, and the first opening 800a in the first metal ring 800 corresponding to the mesh area U located between the second ring slot 300a2 and the third ring slot 300a3 can also be alternately arranged in the circumferential direction of the opening area 003.

[0117] Please refer to Figures 13 and 14. Figure 13 is another top view of the display panel provided in this application at the transition region, and Figure 14 is a cross-sectional schematic diagram at DD' in Figure 13. The display panel 000 may further include a second metal ring 900, which is distributed within the transition region 002 and located on the side of at least one inorganic functional layer 300 facing the substrate 100. For example, 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 annular groove 300a on the substrate 100.

[0118] The orthographic projection of the second metal ring 900 onto the substrate 100 lies within the orthographic projection of the first metal ring 800 onto the substrate 100. By adding the second metal ring 900 within the transition region 002 of the display panel 000, the high ductility of the metal can be utilized to further enhance the overall structural strength of the display panel 000. The first metal ring 800 and the second metal ring 900 can simultaneously absorb the energy generated during external impacts, thereby further reducing the probability of cracks appearing in the inorganic functional layer 300 under external impacts and improving the reliability of the display panel 000.

[0119] Please refer to Figures 15, 16, and 17. Figure 15 is another top view of the display panel provided in this application at the transition area. Figure 16 is an enlarged schematic diagram of R1 in Figure 15. Figure 17 is a cross-sectional schematic diagram of EE' in Figure 16. The inorganic functional layer distributed between the first metal ring 800 and the second metal ring 900 may have a first through-groove V1. The orthographic projection of the first through-groove V1 on the substrate 100 lies within the orthographic projection of the second metal ring 900 on the substrate 100.

[0120] 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 to allow the first metal ring 800 to overlap with the second metal ring 900, the tightness of the metal structure connection within the transition zone 002 can be improved, thus enhancing the overall structural strength of the display panel 000, reducing the probability of cracks appearing in the inorganic functional layer 300 under external impact, and improving the reliability of the display panel 000. On the other hand, by setting the first through groove V1, the portion of the inorganic functional layer between the first metal ring 800 and the second metal ring 900 located on the side of the first through groove V1 facing the opening area 003 is disconnected from the portion located on the side of the first through groove V1 away from the opening area 003, and the first metal rings 800 are distributed within the first through groove V1. In this way, even if the inorganic functional layer between the first metal ring 800 and the second metal ring 900 cracks under the impact of external force, the first through groove V1 can effectively prevent the crack from extending towards the display area 001. This can prevent the film layer from separating in the display panel 000 or moisture from the external environment from entering the display area 001 from the opening area 003 along the crack, thereby improving the reliability of the display panel 000.

[0121] It should be noted that the first metal ring 800 in the display panel 000 can be disposed 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 disposed in the same layer as the first touch metal layer 602 and made of the same material. This simplifies the manufacturing steps of the display panel 000 and reduces costs. 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. 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.

[0122] As shown in Figure 14, in the display panel 000, there can be multiple annular grooves 300a and at least one second metal ring 900. The orthographic projection of one second metal ring 900 onto the substrate 100 lies between the orthographic projections of two adjacent annular grooves 300a onto the substrate 100. This ensures that the annular groove 300a can penetrate the entire first inorganic layer 301, the entire second inorganic layer 302, and at least a portion of the third inorganic layer 303, without being affected by the second metal ring 900. Therefore, the depth of the annular groove 300a is relatively deep, and the three-dimensional metal structure formed within the transition region 002 of the display panel 000 has a strong ability to absorb external impact energy. This effectively reduces the probability of cracks forming in the inorganic functional layer 300 under external force, improves the overall structural strength of the display panel 000, and enhances the reliability of the display panel 000.

[0123] Please refer to Figure 18, which is another top view of the display panel provided in this application at the transition zone. The display panel 000 may further include: a plurality of isolation portions 1000, all of which are located within the transition zone 002 and are distributed around the opening zone 003. The plurality of isolation portions 1000 are nested sequentially. In this case, the plurality of isolation portions 1000 may all be located on the side of the annular baffle 700 near the opening zone 003; or, the plurality of isolation portions 1000 may all be located on the side of the annular baffle 700 away from the opening zone 003; or, the isolation portions 1000 may be distributed on both the side of the annular baffle 700 near the opening zone 003 and the side away from the opening zone 003.

[0124] The isolation section 1000 is used to isolate the portion of the light-emitting layer 202 and the second electrode layer 203 of the display panel 000 located in the transition region 002.

[0125] Since the light-emitting layer 202 contains organic materials, which have strong water absorption, the display panel 000 uses the isolation part 1000 to isolate the part of the light-emitting layer 202 located in the transition area 002, which can prevent water and oxygen from the external environment from entering the display area 001 from the opening area 003 along the light-emitting layer 202 and affecting the display effect of the display panel 000.

[0126] When the display panel 000 is in operation, the second electrode layer 203 is typically negatively charged. When water and oxygen from the external environment enter the transition zone 002 through the opening area 003 of the display panel 000, the water and oxygen entering the transition zone 002 will undergo an electrolytic reaction under the action of the negatively charged second electrode layer 203, generating hydrogen ions and hydroxide ions. Furthermore, since the light-emitting side of the display panel 000 is usually equipped with a polarizer to reduce the reflectivity of ambient light, and the polarizer is usually made of metal, positively charged metal ions (e.g., potassium ions) in the polarizer are easily attracted by the negatively charged second electrode layer 203, causing positively charged metal ions to accumulate near the portion of the second electrode layer 203 located in the transition zone 002. Metal ions readily combine with hydroxide ions, causing the portion of the encapsulation layer 500 located in the transition region 002 to be in a strongly alkaline environment formed by the combination of metal ions and hydroxide ions. This environment reacts with the inorganic materials in the encapsulation layer 500, leading to defects such as holes or expansion in the encapsulation layer 500. This affects the encapsulation effect of the encapsulation layer 500 on the light-emitting device 200, resulting in low reliability of the display panel 000.

[0127] Therefore, by using the isolation portion 1000 to isolate the portion of the second electrode layer 203 located in the transition region 002, the second electrode layer 203 near the opening region 003 can be de-energized, thereby avoiding electrolytic reaction near the opening region 003 and affecting the encapsulation effect of the encapsulation layer 500.

[0128] It should be noted that the isolation section 1000 in the display panel 000 can have multiple possible implementations. This application embodiment illustrates the following three possible implementations as examples:

[0129] For a first possible implementation, please refer to Figure 19, which is a cross-sectional view of point GG' in Figure 18. When 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 further away from the light-emitting device 200 of the display panel 000 than the second sub-substrate 102.

[0130] The portion of the second sub-substrate 102 in the display panel 000 located in the transition region 002 may have multiple first grooves 102a, and the first electrode layer 201 in the display panel 000 may have multiple second through grooves V2 corresponding to the multiple 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, one first groove 102a and one corresponding second through groove V2 constitute an isolation portion 1000. Thus, since both the light-emitting layer 202 and the second electrode layer 203 can be formed by a whole-layer vapor deposition process, by providing the isolation portion 1000 in the transition region 002, it can be ensured that the portion of the light-emitting layer 202 located within the first groove 102a is disconnected from the portion located outside the first groove 102a, and the portion of the second electrode layer 203 located within the first groove 102a is disconnected from the portion located outside the first groove 102a.

[0131] For a second possible implementation, please refer to Figure 20, which is another cross-sectional view of GG' in Figure 18. 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 stacked along a direction away from the substrate 100.

[0132] For example, as shown in FIG3, 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 the 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 in a one-to-one correspondence. Each pixel driving circuit P may be used 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.

[0133] The storage capacitor may include a first capacitor electrode C1 and a second capacitor electrode C2 disposed opposite to each other. 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 be connected to the active layer Act. Furthermore, the source S may be electrically connected to multiple data lines distributed within the display area 001. In one possible scenario, as shown in Figure 3, the drain D may be electrically connected to the anode 201a of the light-emitting device 200 via a transfer electrode Z. It should be noted that the transfer electrode Z of the display panel 000 may be a single-layer structure or a multi-layer structure; this application does not impose any limitations on this. For ease of explanation, this application uses the example of the drain D of the display panel 000 being electrically connected to the anode 201a of the light-emitting device 200 via a single transfer electrode Z for illustrative purposes.

[0134] 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 away from the substrate 100, a first planarization layer 1600 located on the side of the passivation layer 1500 away from the substrate 100, and a second planarization layer 1700 located on the side of the transition electrode Z away from the substrate 100.

[0135] To simplify the fabrication process of the display panel 000, the first sub-part 1001 in the isolation section 1000 can be disposed in the same layer and made of the same material as the gate electrode G and the first capacitor electrode C1 in the display panel 000; the second sub-part 1002 in the isolation section 1000 can be disposed in 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 section 1000 can be disposed in 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 section 1000 can be disposed in the same layer and made of the same material as the interlayer dielectric layer 1400 in the display panel 000; the first sub-part 1001 in the isolation section 1000 can be disposed in 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 section 1000 can be disposed in 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 section 1000 can be disposed in the same layer and made of the same material as the interlayer dielectric layer 1400 in the display panel 000; the third sub-part 1001 in the isolation section 1000 can be disposed in 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 1002 ... The fifth sub-section 1005 can be disposed on the same layer as the source S and drain D layers in the display panel 000 and made of the same material; the sixth sub-section 1006 in the isolation section 1000 can be disposed on the same layer as the first planarization layer 1600 in the display panel 000 and made of the same material; the seventh sub-section 1007 in the isolation section 1000 can be disposed on the same layer as the transition electrode Z in the display panel 000 and made of the same material; the eighth sub-section 1008 in the isolation section 1000 can be disposed on the same layer as the second planarization layer 1700 in the display panel 000 and made of the same material; the ninth sub-section 1009 in the isolation section 1000 can be disposed on the same layer as the pixel definition layer 400 in the display panel 000 and made of the same material.

[0136] Since the sixth sub-part 1006 can be an organic material and the seventh sub-part 1007 is a conductive metal material, after the seventh sub-part 1007 is formed, the sixth sub-part 1006 can be over-etched using methods such as gas etching. A second groove 1006a is formed on the side of the sixth sub-part 1006 facing the opening area 003 and / or on the 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. Thus, since both the light-emitting layer 202 and the second electrode layer 203 can be formed by a whole-layer vapor deposition process, by providing the isolation portion 1000 in the transition region 002, the second groove 1006a and the height difference between the isolation portion 1000 and its two sides can be used to disconnect the portion of the light-emitting layer 202 located on the side of the isolation portion 1000 facing away from the substrate 100 from the portions located on both sides of the isolation portion 1000; and the portion of the second electrode layer 203 located on the side of the isolation portion 1000 facing away from the substrate 100 from the portions located on both sides of the isolation portion 1000. Here, the two sides of the isolation pillar refer to the side of the isolation pillar facing the opening region 003 and the side of the isolation pillar facing away from the opening region 003.

[0137] It should be noted that in this implementation, since the sixth sub-part 1006 of the isolation section 1000 is made of organic material, the sixth sub-part 1006 can have a third through-slot V3, and the seventh sub-part 1007 can overlap with the fifth sub-part 1005 through the third through-slot V3. This prevents the sixth sub-part 1006 from connecting with the light-emitting layers 202 on both sides of the isolation section 1000 to form a new water and oxygen intrusion channel. Therefore, it effectively prevents water and oxygen from 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, improving the reliability of the display product.

[0138] For a third possible implementation, please refer to Figure 21, which is another cross-sectional view of GG' in Figure 18. The isolation portion 1000 may be disposed in the same layer and made of the same material as at least one of the source electrode S and drain electrode D layers and the transition electrode Z in the display panel 000. The isolation portion 1000 may have a third groove 1011a, which may be located on the side of the isolation portion 1000 facing the opening area 003 and / or on the side of the isolation portion 1000 away from the opening area 003.

[0139] For example, the isolation portion 1000 may include a first metal structure 1010, a second metal structure 1011, and a third metal structure 1012 stacked together, wherein the first metal structure 1010 is closer to the substrate 100 than the third metal structure 1012. When the isolation portion 1000 has a third groove 1011a on both the side facing the aperture region 003 and the side facing away from the aperture region 003, the orthographic projection of the second metal structure 1011 onto the substrate 100 lies within the orthographic projection of the third metal structure 1012 onto the substrate 100, and the boundary of the orthographic projection of the second metal structure 1011 onto the substrate 100 does not coincide with the boundary of the orthographic projection of the third metal structure 1012 onto the substrate 100. The orthographic projection of the first metal structure 1010 onto the substrate 100 may overlap with the orthographic projection of the third metal structure 1012 onto the substrate 100.

[0140] 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 third groove 1011a on both sides of the isolation portion 1000, the portion of the light-emitting layer 202 located on the side of the isolation portion 1000 away from the substrate 100 can be disconnected from the portion of the light-emitting layer 202 located on the side of the isolation portion 1000 with the third groove 1011a. Similarly, the portion of the second electrode layer 203 located on the side of the isolation portion 1000 away from the substrate 100 can be disconnected from the portion of the second electrode layer 203 located on the side of the isolation portion 1000 with the third groove 1011a.

[0141] It should be noted that the isolation section 1000 in the other figures of this application is embodied in the structure of the third possible implementation.

[0142] Please refer to Figures 22, 23 and 24. Figure 22 is another top view of the display panel provided in this application in the transition area. Figure 23 is an enlarged schematic diagram of R2 in Figure 22. Figure 24 is a cross-sectional schematic diagram of FF' in Figure 23.

[0143] As shown in Figure 24, the multilayer inorganic functional layer 300 in the display panel 000 is located on the side of the isolation portion 1000 away from the substrate 100, and there are multiple annular grooves 300a.

[0144] It should be noted that the positions of the multiple annular grooves 300a in the display panel 000 can be implemented in various ways. This application embodiment illustrates the following five possible implementations as examples:

[0145] For the first possible implementation, please refer to Figure 25. Figure 25 is another top view of the display panel provided in this application in the transition area. 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 area 003 on the substrate 100.

[0146] In a second possible implementation, as shown in Figure 24, at least some of the multiple isolation portions 1000 can correspond to multiple annular grooves 300a, and the orthographic projection of the annular groove 300a on the substrate 100 lies 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, thereby allowing the area of ​​the display region 001 to be relatively large, thus improving the screen-to-body ratio of the display panel 000.

[0147] For a third possible implementation, please refer to Figures 26, 27, and 28. Figure 26 is another top view of the display panel provided in this application at the transition area. Figure 27 is an enlarged schematic diagram of R3 in Figure 26, and Figure 28 is a cross-sectional schematic diagram of HH' in Figure 27. For any annular groove 300a, the orthographic projection of an annular groove 300a on the substrate 100 lies 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 area 002 is not too large, thereby allowing the area of ​​the display area 001 to be relatively large, increasing the screen-to-body ratio of the display panel 000.

[0148] For a fourth possible implementation, please refer to Figures 29, 30, and 31. Figure 29 is another top view of the display panel provided in this application at the transition area. Figure 30 is an enlarged schematic diagram of R4 in Figure 29, and Figure 31 is a cross-sectional schematic diagram of II' in Figure 30. Among the plurality of annular grooves 300a of the display panel 000, a portion of the annular grooves 300a may have their orthogonal projection on the substrate 100 located between the orthogonal projections of the plurality of isolation portions 1000 on the substrate 100 and the orthogonal projection of the opening area 003 on the substrate 100; another portion of the annular grooves 300a corresponds to at least a portion of the isolation portions 1000, and the orthogonal projection of the annular grooves 300a on the substrate 100 is located within the orthogonal projection of the corresponding isolation portion 1000 on the substrate 100. In this configuration, it is possible to ensure that the area of ​​the transition zone 002 is not too large, thereby allowing the area of ​​the display zone 001 to be relatively large and increasing the screen-to-body ratio of the display panel 000. At the same time, it is possible to ensure that there are a large number of annular grooves 300a. Since at least a portion of the first metal ring 800 is located within the annular groove 300a, the more annular grooves 300a there are, the better the effect of using the first metal ring 800 to improve the overall structural strength of the display panel 000. This can more effectively reduce the probability of cracks appearing in the inorganic functional layer 300 under external impact, thereby improving the reliability of the display panel 000.

[0149] For a fifth possible implementation, please refer to Figures 32, 33, and 34. Figure 32 is another top view of the display panel provided in this application at the transition area. Figure 33 is an enlarged schematic diagram of R5 in Figure 32. Figure 34 is a cross-sectional schematic diagram of JJ' in Figure 33. Among the multiple annular grooves 300a of the display panel 000, the orthographic projection of a portion of the annular grooves 300a on the substrate 100 may lie between the orthographic projections of the multiple isolation portions 1000 on the substrate 100 and the orthographic projection of the opening area 003 on the substrate 100. For any one of the other annular grooves 300a, the orthographic projection of one annular groove 300a on the substrate 100 lies between the orthographic projections of two adjacent isolation portions 1000 on the substrate 100. In this configuration, it is possible to ensure that the area of ​​the transition zone 002 is not too large, thereby allowing the area of ​​the display zone 001 to be relatively large and increasing the screen-to-body ratio of the display panel 000. At the same time, it is possible to ensure that there are a large number of annular grooves 300a. Since at least a portion of the first metal ring 800 is located within the annular groove 300a, the more annular grooves 300a there are, the better the effect of using the first metal ring 800 to improve the overall structural strength of the display panel 000. This can more effectively reduce the probability of cracks appearing in the inorganic functional layer 300 under external impact, thereby improving the reliability of the display panel 000.

[0150] As shown in Figure 34, 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 improve the flatness of the display panel 000 and protect the film layers such as the second touch metal layer 604 in the display panel 000. For example, the material used to make the touch organic layer 605 can be a thermosetting or photocurable organic material such as acrylate or epoxy resin.

[0151] In summary, the display panel provided in this application includes: a substrate, and a light-emitting device, a first metal ring, and a multilayer inorganic functional layer located on one side of the substrate. Since at least one layer of the multilayer inorganic functional layer has a groove in the transition region, and the groove is distributed around the opening region, and at least a portion of the first metal ring is located within the groove, a three-dimensional metal structure can be formed within the transition region of the display panel. Because metal has good ductility, when the display panel is subjected to an external impact, the first metal ring can absorb the energy of the impact, reducing the probability of cracks appearing in the inorganic functional layer under the impact, thereby utilizing the high ductility of the metal to improve the overall structural strength of the display panel. Furthermore, even if cracks appear in the portion of the inorganic functional layer located in the transition region under the impact, the groove can effectively prevent the cracks from propagating towards the display area, thus avoiding film separation or moisture from the external environment entering the display area from the opening region along the cracks, improving the reliability of the display panel.

[0152] This 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. The display panel 000 may include any of the display panels 000 given above. The display device may be any product or component with display functionality, such as a mobile phone, tablet computer, television, advertising machine, display screen, digital photo frame, etc.

[0153] It should be noted that the dimensions of layers and regions may be exaggerated in the accompanying drawings for clarity. Furthermore, it is 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 intermediate layers. Additionally, it is understood that when an element or layer is referred to as being "below" another element or layer, it can be directly below the other element, or there may be more than one intermediate layer or element. Furthermore, it is also 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.

[0154] 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 "multiple" refers to two or more unless otherwise expressly defined.

[0155] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should 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 aperture area, wherein the display area is located around the aperture area, and the transition area is located between the display area and the aperture area; the display panel includes: a substrate, and a light-emitting device, a first metal ring, and a multilayer inorganic functional layer located on one side of the substrate; The light-emitting device is located within the display area; The multilayer inorganic functional layer is located on the side of the light-emitting device away from the substrate, and at least one of the inorganic functional layers has an annular groove in the portion located in the transition region, the annular groove being distributed around the opening region; The first metal ring is distributed within the transition region and is located on the side of the multilayer inorganic functional layer opposite to the substrate, with at least a portion of the first metal ring located within the ring groove.

2. The display panel according to claim 1, characterized in that, The inorganic functional layer that is furthest from the substrate in the multilayer inorganic functional layers is the first inorganic layer; The annular groove extends through 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 the 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 the third inorganic layer. The annular groove also penetrates the entire second inorganic layer in a direction perpendicular to the substrate, and penetrates at least a portion of the third inorganic layer.

4. The display panel according to any one of claims 1-3, characterized in that, There are multiple annular grooves, and the multiple annular grooves are nested in sequence; Wherein, the orthographic projection of the first metal ring on the substrate covers the orthographic projections of the plurality of annular grooves on the substrate, and there is a portion of the orthographic projection of the first metal ring on the substrate 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 inorganic functional layer located within the transition region further comprises: a plurality of connecting grooves located between two adjacent annular grooves, the two ends of which 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 form a plurality of mesh areas; The first metal ring has a plurality of first openings corresponding to the plurality of mesh regions, wherein the orthographic projection of the first openings on the substrate lies within the orthographic projection 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: a first annular groove, a second annular groove, and a third annular groove, wherein 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 connecting groove located between the first annular groove and the second annular groove is the first connecting groove, and the connecting groove located between the second annular groove and the third annular groove is the second connecting groove; In this configuration, multiple first connecting slots and multiple second connecting slots correspond to each other, with one end of the first connecting slot facing the second annular groove directly connected to the end of the corresponding second connecting slot facing the second annular groove; or, multiple first connecting slots and multiple second connecting slots 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 within the transition region and located on the side of at least one inorganic functional layer facing the substrate; the second metal ring is distributed around the opening region, 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; Wherein, the orthographic projection of the second metal ring on the substrate lies 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, the orthographic projection of the first through groove on the substrate being located within the orthographic projection of the second metal ring on the substrate; The first metal ring overlaps with the second metal ring through the first through groove.

10. The display panel according to claim 8, characterized in that, The number of annular grooves is multiple, and the number of second metal rings is at least one; In this configuration, the orthographic projection of one of the second metal rings onto the substrate lies between the orthographic projections of two adjacent ring grooves onto 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 includes: a plurality of isolation sections; the plurality of isolation sections are all located within the transition area and are distributed around the opening area; the plurality of isolation sections are nested sequentially. The display panel further includes: a first electrode layer, a light-emitting layer, and a second electrode layer stacked together; the portions of the first electrode layer, the light-emitting layer, and the second electrode layer located within the display area are used to form a plurality of light-emitting devices; The isolation portion is used to isolate the portion of the light-emitting layer and the second electrode layer located within the transition region.

12. The display panel according to claim 11, characterized in that, The multilayer inorganic functional layer is located on the side of the isolation portion away from the substrate; there are multiple annular grooves; The orthographic projection of the plurality of annular grooves on the substrate is located between the orthographic projection of the plurality of isolation portions on the substrate and the orthographic projection of the opening area on the substrate; Alternatively, at least a portion of the plurality of isolation portions corresponds to a plurality of the annular grooves, wherein the orthographic projection of the annular groove on the substrate lies within the orthographic projection of the corresponding isolation portion on the substrate; Alternatively, the orthographic projection of one of the annular grooves on the substrate lies between the 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 the side of the light-emitting device away from the substrate, and the encapsulation layer includes at least: 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 the side of the encapsulation layer away from the substrate, and the touch layer includes at least: a touch buffer layer, a first touch metal layer, a touch insulating layer and a second touch metal layer stacked along the direction away from the substrate; The multilayer inorganic functional layers, along the direction away from the substrate, are: 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 disposed in the same layer and are 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 within the transition region and located on the side of at least one inorganic functional layer facing the substrate; the second metal ring is distributed around the opening region, 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; 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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