Display panel and display device

Abstract

The invention discloses a display panel and a display device.The display panel comprises a display area and a non-display area located on the periphery of the display area, the display panel comprises a substrate, an inorganic packaging layer and a filling structure, the non-display area comprises a bending area and a dam surrounding at least part of the display area, and the bending area is located on the side, away from the display area, of the dam; the inorganic packaging layer is arranged on one side of the substrate and located in the non-display area, and the portion, located in the bending area, of the inorganic packaging layer is provided with at least one groove; the filling structure is arranged in the groove, and the filling structure and the inorganic packaging layer are made of different materials. In this way, the bending resistance and the packaging effect of the display panel can be 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 recent years, foldable displays have achieved a breakthrough in showing a larger screen field of view in a limited space by combining flexible display technology with a foldable mechanical structure. This technology not only improves the screen utilization rate of mobile devices, but also brings users a more flexible and convenient experience. During the long-term research and development process, the applicant of this application found that the packaging of the foldable display had a defect that the packaging failed due to insufficient bendability. Summary of the invention

[0003] The main technical problem solved by the present application is to provide a display panel and a display device, which can improve the bending resistance and packaging effect of the display panel.

[0004] In order to solve the above technical problems, a technical solution adopted in the present application is: providing a display panel, the display panel includes a display area and a non-display area located at least partially outside the display area, the display panel includes: a substrate; the non-display area includes a bending area and a dam surrounding at least part of the display area, the bending area is located on the side of the dam away from the display area; an inorganic encapsulation layer, arranged on one side of the substrate, the inorganic encapsulation layer is located in the non-display area, and the inorganic encapsulation layer located in the bending area is provided with at least one groove; a filling structure, arranged in the groove, wherein the filling structure is made of a different material from the inorganic encapsulation layer.

[0005] In order to solve the above technical problems, another technical solution adopted by the present application is: to provide a display device, comprising a display panel as described in any one of the above items.

[0006] The beneficial effect of the present application is: different from the prior art, the present application sets a groove on the inorganic packaging layer in the non-display area, and the filling structure is set in the groove. Since the filling structure and the inorganic packaging layer are made of different materials, the inorganic packaging layer located in the non-display area is a discontinuous film layer, which can disperse the stress of the film layer when bending, and can improve the bendability of the inorganic packaging layer, so that the display panel can have a good packaging effect at different bending angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0008] Figure 1 It is a schematic structural diagram of an embodiment of a display panel of the present application;

[0009] Figure 2 In one embodiment, the groove is Figure 1 Display the position diagram in the panel;

[0010] Figure 3 yes Figure 2 A cross-sectional view of the display panel along line AA' in one embodiment;

[0011] Figure 4 yes Figure 2 A cross-sectional view of the display panel along line BB' in one embodiment;

[0012] Figure 5 yes Figure 2 A cross-sectional view of the display panel along line AA' in another embodiment;

[0013] Figure 6 yes Figure 2 A cross-sectional view of the display panel along line AA' in another embodiment;

[0014] Figure 7 In another embodiment, the groove is Figure 1 Display the position diagram in the panel;

[0015] Figure 8 yes Figure 7 A cross-sectional view of the display panel along line CC' in one embodiment;

[0016] Fig. 9 yes Figure 7 A cross-sectional view of the display panel along line DD' in one embodiment;

[0017] Fig.10 yes Figure 2 A cross-sectional view of the display panel along line AA' in yet another embodiment;

[0018] Fig.11 It is a structural schematic diagram of an embodiment of a display device of the present application. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0020] In the current technology, in order to ensure the effectiveness of packaging, the display panel uses inorganic packaging around the periphery. After inorganic packaging, when the display area of ​​the screen is bent, the screen is prone to breakage due to the rigid material of the inorganic layer, which eventually leads to failure of the screen packaging, display abnormalities and other display problems. The present application proposes the following solutions to solve the above problems.

[0021] See also Figures 1 to 4 The display panel 100 includes a display area 11 and a non-display area 12 located at least partially outside the display area 11 (the non-display area 12 can be only set at part of the outside of the display area 12, or can surround the entire display area 12), wherein the display panel 100 can be an LCD display panel (Liquid Crystal Display), an OLED display panel (Organic Light-Emitting Diode), or a Micro-LED display panel (Micro Light Emitting Diode), wherein the display area 11 is used to display images, and usually includes structures such as light-emitting pixels and driving circuits, and the non-display area 12 is not used to display images, and usually peripheral circuits and other structures are set. The non-display area 12 includes a bending area 125 and a dam 9 surrounding at least part of the display area 11, and the bending area 125 is located on the side of the dam 9 away from the display area 11, and the display panel 100 includes a substrate 1, an inorganic encapsulation layer 2, a filling structure 4, a light-emitting layer 5, an array layer 6 and a first encapsulation layer 7.

[0022] The substrate 1 plays a supporting role in the display panel 100, and can be a flexible substrate or a rigid substrate. When the substrate 1 is a flexible substrate, its material can be polyimide (PI), and when the substrate 1 is a rigid substrate, its material can be glass or metal. The present application does not limit the structure of the substrate 1.

[0023] The inorganic encapsulation layer 2 is disposed on one side of the substrate 1, located in the non-display area 12, and the inorganic encapsulation layer 2 located in the bending area 125 is provided with at least one groove 3, that is, the groove 3 is disposed in the bending area 125. The material of the inorganic encapsulation layer 2 includes an inorganic material, which generally has good chemical stability, is not easy to chemically react with the surrounding environment, and can play a packaging role to prevent external water and oxygen from invading the interior of the display panel 100.

[0024] The array layer 6 is located on one side of the substrate 1 and is used to drive the light-emitting layer 5 to emit light. The array layer 6 includes a pixel driving circuit 21. The pixel driving circuit 21 can be, for example, a 2T1C circuit, a 7T1C circuit, a 7T2C circuit or a 9T1C circuit, etc., and the present application does not limit its specific structure. Among them, the "2T1C circuit" refers to a pixel circuit including two thin film transistors (T) and one capacitor (C) in the pixel driving circuit 21, and other "7T1C circuits", "7T2C circuits", "9T1C circuits" and so on. Among them, the pixel driving circuit 21 includes structures such as a transistor 211 and a storage capacitor 212. The transistor 211 includes a semiconductor part, a gate, a source and a drain. The storage capacitor 212 includes a first plate and a second plate. Among them, the gate and the first plate can be located in the first metal layer, the second plate can be located in the second metal layer, and the source and drain can be located in the third metal layer. An insulating layer is provided between the first metal layer and the second metal layer, and between the second metal layer and the third metal layer.

[0025] The light-emitting layer 5 is arranged on the side of the array layer 6 away from the substrate 1 and located in the display area 11. The light-emitting layer 5 includes a light-emitting element 51. The number of the light-emitting element 51 can be one or more. When the number of the light-emitting element 51 is more than one, some of the light-emitting elements 51 emit red light, some of the light-emitting elements 51 emit green light, and some of the light-emitting elements 51 emit blue light. It should be noted that the color of the light emitted by the light-emitting element 51 is not limited to red, green, and blue, and can also be yellow or other colors, which are not limited here.

[0026] Meanwhile, the light emitting element 51 includes a first electrode, a light emitting material layer and a second electrode which are sequentially stacked in a direction away from the substrate 1 .

[0027] The first encapsulation layer 7 is disposed on the side of the light-emitting layer 5 facing away from the substrate 1 , wherein the orthographic projection of the first encapsulation layer 7 on the substrate 1 covers the orthographic projection of the light-emitting layer 5 on the substrate 1 .

[0028] At the same time, a filling structure 4 is arranged in the groove 3 , wherein the filling structure 4 and the inorganic encapsulation layer 2 are made of different materials.

[0029] Specifically, the filling structure 4 can be set in a partial area of ​​the groove 3 or in the entire area of ​​the groove 3. The material of the filling structure 4 is different from the material of the inorganic encapsulation layer 2, so that the inorganic encapsulation layer 2 can be discontinuous, which can improve the bendability of the inorganic encapsulation layer 2 in the non-display area 12.

[0030] It can be seen from the above content that the present application sets a groove 3 on the inorganic packaging layer 2, and a filling structure 4 is set in the groove 3. Since the filling structure 4 is made of different materials from the inorganic packaging layer 2, the inorganic packaging layer 2 located in the non-display area 12 is a discontinuous film layer, that is, the inorganic packaging layer 2 located in the non-display area 12 has a graphic structure, which can disperse the stress of the film layer when bending, and has a stronger stress bearing capacity when bending, which can improve the bendability of the inorganic packaging layer 2, so that the display panel 100 can have a good packaging effect at different bending angles.

[0031] Continue reading Figure 3 In one embodiment, the inorganic encapsulation layer 2 is disposed on the same layer as at least a portion of the inorganic film layer in the array layer 6 .

[0032] Specifically, the inorganic encapsulation layer 2 is provided in the same layer as at least a portion of the inorganic film layer in the array layer 6 , so that the inorganic encapsulation layer 2 and the array layer 6 can be prepared simultaneously during preparation, thereby improving preparation efficiency.

[0033] Continue reading Figure 3 In one embodiment, the inorganic encapsulation layer 2 is disposed on the same layer as an inorganic film layer in the array layer 6. Figure 5 In another embodiment, the inorganic encapsulation layer 2 is disposed in the same layer as the multi-layer inorganic film layer in the array layer 6. Figure 5 In a specific example, the inorganic encapsulation layer 2 is disposed in the same layer as all inorganic film layers in the array layer 6. It can be understood that, compared with the inorganic encapsulation layer 2 being disposed in the same layer as one inorganic film layer in the array layer 6, when the inorganic encapsulation layer 2 is disposed in the same layer as multiple inorganic film layers in the array layer 6, the inorganic encapsulation layer 2 is thicker.

[0034] In one embodiment, the inorganic film layer in the array layer 6 extends to the non-display area 12 to form the inorganic encapsulation layer 2 .

[0035] In one embodiment, when an inorganic film layer exists between the array layer 6 and the substrate 1 , the inorganic encapsulation layer 2 may also be disposed in the same layer as the inorganic film layer between the array layer 6 and the substrate 1 .

[0036] In one embodiment, see Figure 3 as well as Figure 5, the groove 3 penetrates the inorganic encapsulation layer 2 to further enhance the stress bearing capacity of the display panel 100 when it is bent. It should be noted that the drawings of the present application are schematically illustrated with the groove 3 penetrating the inorganic encapsulation layer 2, but this does not mean that the groove 3 must penetrate the inorganic encapsulation layer 2. In other embodiments, the groove 3 may not penetrate the inorganic encapsulation layer 2, that is, the groove 3 is a blind groove, and the depth of the groove 3 is less than the thickness of the inorganic encapsulation layer 2. In one embodiment, when the film layer in the array layer 6 extends to the non-display area 12 to form the inorganic encapsulation layer 2, and the groove 3 penetrates the inorganic encapsulation layer 2, it is equivalent to the groove 3 penetrating the array layer 6.

[0037] In one embodiment, the material of the filling structure 4 includes a metal material.

[0038] Specifically, the material of the filling structure 4 includes a metal material. The metal material has strong bendability and is not easy to break. This arrangement can further improve the anti-bending performance of the display panel 100 .

[0039] Of course, in other implementations, the material of the filling structure 4 may also include organic materials, and the present application does not limit the material of the filling structure 4 .

[0040] In one embodiment, the metal material includes at least one of aluminum, copper, steel, molybdenum and titanium. For example, the metal material may include only aluminum or a mixture of copper and steel.

[0041] Combination Figures 2 to 9 The first encapsulation layer 7 is arranged on the side of the inorganic encapsulation layer 2 away from the substrate 1, and the orthographic projection of the first encapsulation layer 7 on the substrate 1 covers at least part of the orthographic projection of the filling structure 4 on the substrate 1, that is, the filling structure 4 is encapsulated by at least the first encapsulation layer 7 to prevent external water and oxygen from invading the filling structure 4, and to prevent the filling structure 4 from being corroded by the outside world and causing encapsulation failure. Among them, the first encapsulation layer 7 can be a single-layer structure or a multi-layer structure, and the details can be seen in the following introduction.

[0042] Continue reading Figures 2 to 5 In one embodiment, the orthographic projection of the first encapsulation layer 7 on the substrate 1 covers the orthographic projection of a portion of the filling structure 4 on the substrate 1, that is, the first encapsulation layer 7 only covers a portion of the filling structure 4. At the same time, the display panel 100 further includes a second encapsulation layer 8, which is located in the non-display area 12 and at least on the side of the filling structure 4 facing away from the substrate 1, wherein the total orthographic projection of the second encapsulation layer 8 and the first encapsulation layer 7 on the substrate 1 covers the orthographic projection of the filling structure 4 on the substrate 1.

[0043] Specifically, the first encapsulation layer 7 covers part of the filling structure 4, and in order to isolate the filling structure 4 from water and oxygen, a second encapsulation layer 8 is further provided to cover the remaining part of the filling structure 4, that is, the total orthographic projection of the first encapsulation layer 7 and the second encapsulation layer 8 on the substrate 1 covers the orthographic projection of the filling structure 4 on the substrate 1. This arrangement can ensure that the filling structure 4 is completely covered, and ensure that the filling structure will not be corroded by the outside world to cause packaging failure.

[0044] In one embodiment, the orthographic projection of the second encapsulation layer 8 on the substrate 1 covers the orthographic projection of a portion of the filling structure 4 on the substrate 1 .

[0045] In another embodiment, the orthographic projection of the second encapsulation layer 8 on the substrate 1 may also completely cover the orthographic projection of the filling structure 4 on the substrate 1. In summary, it is sufficient as long as the first encapsulation layer 7 and the second encapsulation layer 8 can cover the filling structure 4 together.

[0046] In yet another embodiment, see Figure 6 , the orthographic projection of the first encapsulation layer 6 on the substrate 1 and the orthographic projection of the filling structure 4 on the substrate 1 may not overlap, and at this time the orthographic projection of the second encapsulation layer 8 on the substrate 1 completely covers the orthographic projection of the filling structure 4 on the substrate 1, that is, this embodiment encapsulates the filling structure 4 solely by the second encapsulation layer 7. This setting can reduce the contact interface between different film layers and prevent external water and oxygen from invading the filling structure 4 from the contact interface between different film layers.

[0047] In one embodiment, the material of the second encapsulation layer 8 includes at least one of blue glue and sealant. Specifically, the material of the second encapsulation layer 8 includes one or more of blue glue and sealant, for example, the material of the second encapsulation layer 8 includes only blue glue, or the material of the second encapsulation layer 8 includes a mixture of blue glue and sealant.

[0048] It should be noted that the present application does not limit the material of the second encapsulation layer 8 . For example, the material of the second encapsulation layer 8 may be the same as that of the inorganic encapsulation layer 2 , thereby reducing costs.

[0049] Continue reading Figure 3 as well as Figure 5 In one embodiment, the first encapsulation layer 7 includes a first sublayer 71, a second sublayer 72, and a third sublayer 73 which are sequentially stacked in a direction away from the substrate 1. That is, the first encapsulation layer 7 adopts a three-layer encapsulation structure, which can prevent the influence of external dust, water oxygen and mechanical damage on the light-emitting layer 5, thereby extending the service life of the display panel 100.

[0050] In one embodiment, the orthographic projection of the second sub-layer 72 on the substrate 1 is located within the orthographic projection of the first sub-layer 71 on the substrate 1, and the orthographic projection of the first sub-layer 71 on the substrate 1 coincides with the orthographic projection of the third sub-layer 73 on the substrate 1, and the first sub-layer 71 partially away from the display area 11 can be further arranged to be in contact and connected with the third sub-layer 73 partially away from the display area 11, so as to improve the packaging effect.

[0051] In one embodiment, the first sublayer 71 is an inorganic material layer, the second sublayer 72 is an organic material layer, and the third sublayer 73 is an inorganic material layer. This arrangement can achieve that the film layers above the filling structure 4 are all inorganic film layers, and the inorganic film layers have a strong sealing effect, which can ensure the sealing effect of the filling structure 4.

[0052] Of course, in other implementations, the first encapsulation layer 7 may also be a single-layer structure.

[0053] Continue reading Figure 2 as well as Figure 3 In one embodiment, the groove 3 extends to the edge of the display panel 100 , the filling structure 4 is disposed in a partial area of ​​the groove 3 , and the second encapsulation layer 8 extends from the side of the filling structure 4 away from the substrate 1 into the groove 3 in a direction away from the display area 11 .

[0054] Specifically, the filling structure 4 and the second encapsulation layer 8 are arranged in the groove 3 to fill the groove 3 together, and the second encapsulation layer 8 and the first encapsulation layer 7 encapsulate the filling structure 4 together, so that the filling structure 4 has a good effect of isolating water and oxygen.

[0055] Of course, in other embodiments, the groove 3 may be completely filled with the filling structure 4 . In this case, the second encapsulation layer 8 is not disposed in the groove 3 , but is only located on the side of the filling structure 4 facing away from the substrate 1 .

[0056] See also Figures 7 to 9 ,and Figure 3 The difference between the implementations is that, in this case, the orthographic projection of the first encapsulation layer 7 on the substrate 1 covers the orthographic projection of the entire filling structure 4 on the substrate 1 .

[0057] Specifically, the first encapsulation layer 7 not only encapsulates the light-emitting layer 5, but also covers the entire filling structure 4, so that the filling structure 4 is isolated from water and oxygen. Figure 3 Compared with the embodiment, in this case, during the processing, the first encapsulation layer 7 only needs to be extended to cover the filling structure 4 , thereby improving the processing efficiency.

[0058] Continue reading Figure 8In one embodiment, the orthographic projection of the end of the first encapsulation layer 7 away from the display area 11 on the substrate 1 is located between the orthographic projection of the array layer 6 on the substrate 1 and the orthographic projection of the end of the inorganic encapsulation layer 2 away from the display area 11 on the substrate 1. That is, the end of the first encapsulation layer 7 away from the display area 11 does not extend to the edge of the substrate 1, that is, the orthographic projection of the first encapsulation layer 7 on the substrate 1 is located within the substrate 1, and there is a preset distance between the outer edge of the first encapsulation layer 7 and the outer edge of the substrate 1, so that the first encapsulation layer 7 can be prevented from extending to the edge of the substrate 1 and increasing the thickness of the edge of the display panel 100. This arrangement makes the edge of the display panel 100 easier to bend.

[0059] Continue reading Figure 8 In one embodiment, the first encapsulation layer 7 includes a first sublayer 71, a second sublayer 72 and a third sublayer 73 which are stacked in sequence in a direction away from the substrate 1, wherein the orthographic projection of the first sublayer 71 on the substrate 1 covers the orthographic projection of the filling structure 4 on the substrate 1.

[0060] Specifically, the first encapsulation layer 7 adopts a three-layer encapsulation structure, which can prevent external dust, water oxygen and mechanical damage from affecting the light-emitting layer 5, thereby extending the service life of the display panel 100. At the same time, the first sublayer 71 covers the filling structure 4 and encapsulates the filling structure 4 together with the inorganic encapsulation layer 2.

[0061] It should be noted that, in other embodiments, the first encapsulation layer 7 may also adopt a single-layer structure.

[0062] Continue reading Figure 8 In one embodiment, in the non-display area 12, a portion of the first sub-layer 71 away from the display area 11 is in contact with a portion of the third sub-layer 73 away from the display area 11, thereby improving the packaging effect.

[0063] Continue reading Figure 7 In one embodiment, the orthographic projection of the third sublayer 73 on the substrate 1 is located inside the orthographic projection of the first sublayer 71 on the substrate 1, which is convenient for saving materials and is also beneficial for improving the bending performance of the display panel 100. However, in other embodiments, such as Figure 3 As shown, the orthographic projections of the first sublayer 71 and the third sublayer 73 on the substrate 1 may also completely overlap.

[0064] That is to say, at this time, the second sublayer 72 is retracted relative to the first sublayer 71 and the third sublayer 73 , while the first sublayer 71 and the third sublayer 73 extending outside the second sublayer 72 are in contact and connected, which can increase the sealing performance of the first encapsulation layer 7 .

[0065] In one embodiment, the materials of the first sublayer 71 and the third sublayer 73 include inorganic materials, and the material of the second sublayer 72 includes organic materials, which can achieve a good encapsulation effect. It should be noted that the present application does not limit the materials of the first sublayer 71, the second sublayer 72, and the third sublayer 73, and they can be selected according to actual needs.

[0066] from Figure 8 It can be seen that Figure 3 Another difference in the implementation method is that in Figure 7 In the embodiment, the groove 3 does not extend to the edge of the inorganic encapsulation layer 2 .

[0067] However, in another embodiment, see Fig.10 When the orthographic projection of the first encapsulation layer 7 on the substrate 1 covers the orthographic projection of the entire filling structure 4 on the substrate 1 , the groove 3 can also be set to extend to the edge position of the inorganic encapsulation layer 2 . This setting can further demonstrate the bending performance of the bending zone 125 of the panel 100 .

[0068] It should be noted that the present application does not limit the encapsulation structure used to encapsulate the filling structure 4. The filling structure 4 may be encapsulated using only the first encapsulation layer 7, or only the second encapsulation layer, or the first encapsulation layer 7 and the second encapsulation layer 8 together. The groove 3 may extend to the edge of the display panel 100, or may not extend to the edge of the display panel 100.

[0069] Continue reading Figure 3 as well as Figure 4 In one embodiment, the dam 9 is located on the side of the inorganic encapsulation layer 2 facing away from the substrate 1, and the orthographic projection of the first encapsulation layer 7 on the substrate 1 covers the orthographic projection of the dam 9 on the substrate 1, and the filling structure 4 is arranged on the periphery of the dam 9.

[0070] The number of the dams 9 may be one or more, such as two, three or more, which is not limited here.

[0071] The dam 9 may be disposed around the entire display area 11 , or may be disposed around a portion of the display area 11 , that is, the dam 9 may be a fully enclosed structure or a semi-enclosed structure.

[0072] In one embodiment, the orthographic projections of the first sublayer 71 and the third sublayer 73 on the substrate 1 cover the dam 9, and the first sublayer 71 and the third sublayer 73 are in contact with each other outside the dam 9. Meanwhile, the second sublayer 72 is located inside the dam 9, that is, the dam 9 is arranged around the second sublayer 72, so that the dam 9 blocks the second sublayer 72.

[0073] Combination Figure 3 as well as Figure 8 In one embodiment, the surface of the filling structure 4 facing away from the substrate 1 and the surface of the inorganic encapsulation layer 2 facing away from the substrate 1 are in the same plane. Specifically, this arrangement can ensure the flatness of the display panel 100.

[0074] Of course, in other embodiments, the surface of the filling structure 4 facing away from the substrate 1 and the surface of the inorganic encapsulation layer 2 facing away from the substrate 1 may not be in the same plane. For example, the surface of the filling structure 4 facing away from the substrate 1 is recessed relative to the surface of the inorganic encapsulation layer 2 facing away from the substrate 1, or the surface of the filling structure 4 facing away from the substrate 1 is protruding relative to the surface of the inorganic encapsulation layer 2 facing away from the substrate 1.

[0075] Continue reading Figure 1 In one embodiment, the non-display area 12 includes a first sub-area 121, a second sub-area 122, a third sub-area 123 and a fourth sub-area 124 which are connected to each other, the first sub-area 121 and the second sub-area 122 are located on opposite sides of the width direction of the display area 11, and the third sub-area 123 and the fourth sub-area 124 are located on opposite sides of the length direction of the display area 11, wherein the inorganic encapsulation layer 2 located in the first sub-area 121 and / or the inorganic encapsulation layer 2 located in the second sub-area 122 is provided with a groove 3.

[0076] Specifically, in one application scenario, the inorganic packaging layer 2 located in the first sub-area 121 is provided with a groove 3 to ensure the bendability of the inorganic packaging layer 2 in the first sub-area 121. In another application scenario, the inorganic packaging layer 2 located in the second sub-area 122 is provided with a groove 3 to ensure the bendability of the inorganic packaging layer 2 in the second sub-area 122. In yet another application scenario, the inorganic packaging layer 2 located in the first sub-area 121 and the inorganic packaging layer 2 located in the second sub-area 122 are both provided with a groove 3 to ensure the bendability of the inorganic packaging layer 2 in the first sub-area 121 and the second sub-area 122.

[0077] Of course, in other embodiments, the inorganic encapsulation layer 2 located in the third sub-region 123 and the inorganic encapsulation layer 2 located in the fourth sub-region 124 may also be provided with a groove 3 .

[0078] See also Figure 2 and Figure 7 In one embodiment, there are multiple grooves 3, which are arranged at intervals around the display area 11, and each groove 3 is provided with a filling structure 4. Specifically, by providing multiple grooves 3, the inorganic encapsulation layer 2 can still have a good encapsulation effect when bent at different angles.

[0079] Continue reading Figure 2 as well as Figure 7In one embodiment, the groove 3 is a rectangular area. In other embodiments, the groove 3 can be a triangular area or a circular area. The present application does not limit the shape of the groove 3.

[0080] See also Fig.11 The display device 200 includes a display panel 100 as in any of the above embodiments, wherein the detailed structure can be referred to in the above embodiments and will not be described in detail here. The display device 200 can be an electronic device such as a television, a mobile phone, a computer, a stage screen, etc., and this application does not limit its specific type.

[0081] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A display panel, characterized in that: The display panel includes a display area and a non-display area located at least partially around the display area, and the display panel includes: substrate; The non-display area includes a bending area and a dam surrounding at least a portion of the display area, and the bending area is located on a side of the dam away from the display area; An inorganic encapsulation layer is disposed on one side of the substrate, the inorganic encapsulation layer is located in the non-display area, and the inorganic encapsulation layer located in the bending area is provided with at least one groove; A filling structure is disposed in the groove, wherein the filling structure is made of a material different from that of the inorganic encapsulation layer.

2. The display panel according to claim 1, characterized in that: The material of the filling structure includes a metal material; Preferably, the metal material includes at least one of aluminum, copper, steel, molybdenum and titanium.

3. The display panel according to claim 1, characterized in that: The display panel further includes a first encapsulation layer disposed on a side of the inorganic encapsulation layer away from the substrate, wherein an orthographic projection of the first encapsulation layer on the substrate covers at least a portion of an orthographic projection of the filling structure on the substrate.

4. The display panel according to claim 3, characterized in that: The orthographic projection of the first encapsulation layer on the substrate covers a portion of the orthographic projection of the filling structure on the substrate, and the display panel further comprises: A second encapsulation layer is located in the non-display area and at least on a side of the filling structure away from the substrate, wherein a total orthographic projection of the second encapsulation layer and the first encapsulation layer on the substrate covers an orthographic projection of the filling structure on the substrate; Preferably, the material of the second encapsulation layer includes at least one of blue glue and sealant; Preferably, the groove extends to the edge of the display panel, the filling structure is arranged in a partial area of ​​the groove, and the second encapsulation layer extends from a side of the filling structure away from the substrate to the groove in a direction away from the display area; Preferably, the first encapsulation layer comprises a first sublayer, a second sublayer and a third sublayer which are sequentially stacked in a direction away from the substrate, wherein the orthographic projection of the first sublayer on the substrate covers a portion of the orthographic projection of the filling structure on the substrate; Preferably, the orthographic projection of the second sub-layer on the substrate is within the orthographic projection of the first sub-layer on the substrate; Preferably, the orthographic projection of the third sub-layer on the substrate coincides with the orthographic projection of the first sub-layer on the substrate; Preferably, in the non-display area, a portion of the first sub-layer away from the display area is in contact with and connected to a portion of the third sub-layer away from the display area; Preferably, the materials of the first sub-layer and the second sub-layer include inorganic materials, and the material of the second sub-layer includes organic materials.

5. The display panel according to claim 3, characterized in that: The orthographic projection of the first encapsulation layer on the substrate covers the orthographic projection of the filling structure on the substrate; Preferably, the display panel also includes an array layer arranged on one side of the substrate, the inorganic encapsulation layer is arranged on the same layer as at least part of the inorganic film layer in the array layer, and the orthographic projection of the end of the first encapsulation layer away from the display area on the substrate is located between the orthographic projection of the array layer on the substrate and the orthographic projection of the end of the inorganic encapsulation layer away from the display area on the substrate.

6. The display panel according to claim 5, characterized in that: The first encapsulation layer includes a first sublayer, a second sublayer, and a third sublayer which are sequentially stacked in a direction away from the substrate, wherein the orthographic projection of the first sublayer on the substrate covers the orthographic projection of the filling structure on the substrate; Preferably, in the non-display area, a portion of the first sub-layer away from the display area is in contact with and connected to a portion of the third sub-layer away from the display area; Preferably, the orthographic projection of the third sub-layer on the substrate is located inside the orthographic projection of the first sub-layer on the substrate; Preferably, the materials of the first sub-layer and the second sub-layer include inorganic materials, and the material of the second sub-layer includes organic materials.

7. The display panel according to claim 1, characterized in that: A surface of the filling structure facing away from the substrate and a surface of the inorganic encapsulation layer facing away from the substrate are in the same plane.

8. The display panel according to claim 1, characterized in that: The non-display area includes a first sub-area, a second sub-area, a third sub-area and a fourth sub-area connected to each other, the first sub-area and the second sub-area are located at two opposite sides in a width direction of the display area, and the third sub-area and the fourth sub-area are located at two opposite sides in a length direction of the display area, wherein the inorganic encapsulation layer located in the first sub-area and / or the inorganic encapsulation layer located in the second sub-area is provided with the groove; Preferably, there are multiple grooves, and the multiple grooves are arranged at intervals around the display area, and the filling structure is arranged in each groove; Preferably, the groove is a rectangular area.

9. The display panel according to claim 1, characterized in that: The display panel further includes: An array layer is arranged on one side of the substrate, wherein the inorganic encapsulation layer is arranged on the same layer as at least part of the inorganic film layer in the array layer; Preferably, the groove penetrates the inorganic encapsulation layer.

10. A display device, characterized in that: Comprising the display panel as claimed in any one of claims 1 to 9.

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