Display panel and display device

Abstract

The application provides a display panel and a display device. The display panel comprises a plurality of display islands and a connecting bridge, and two adjacent display islands are connected by the connecting bridge. The display island comprises a substrate, a dielectric layer, a display unit, a pin, and a groove. The dielectric layer is arranged on one surface of the substrate and comprises a first area and a second area. The second area is arranged at the periphery of the first area and surrounds the first area, and the second area comprises a plurality of connecting bridge junctions. The display unit is arranged on the side of the dielectric layer away from the substrate and located in the first area. The pin is arranged between the dielectric layer and the display unit. The groove is arranged in the dielectric layer and located in the second area. Thus, the groove on the display panel can block the extension of cracks to the inside of the display island during the stretching process, reduce the strain of the display island during the stretching process, prevent the display unit from falling off caused by the cracks, and improve the service life of the display panel.

Description

Technical Field

[0001] This application relates to the field of display technology, and more specifically, to display panels and display devices. Background Technology

[0002] With the continuous development of electronic display technology, users have increasingly higher requirements for electronic device displays. In recent years, flexible electronic devices and stretchable electronic devices have been developed. Flexible electronic devices are devices that can be bent or folded, and are usually manufactured by mounting electronic components on a flexible substrate. Stretchable electronic devices are devices whose length can be increased in one or more dimensions. Stretchable electronic devices play a significant role in various applications, including display devices and sensor arrays. Therefore, stretchable displays, as one of the important development directions of electronic device displays, have gradually received increasing attention. Although the substrates, circuit layers, and especially inorganic layers in current display devices have a certain degree of bendability, their stretchability is extremely limited. If directly stretched, the inorganic layers, organic layers, substrates, and circuits used for encapsulation will break or undergo irreversible deformation.

[0003] Therefore, the current display panels still need further improvement. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the technical problems in the related art.

[0005] In one aspect of the present invention, a display panel is provided, comprising: a plurality of display islands and connecting bridges, wherein two adjacent display islands are connected by the connecting bridges; each display island comprises: a substrate; a dielectric layer disposed on a surface of the substrate, the dielectric layer comprising a first region and a second region, the second region being disposed around and surrounding the first region, the second region comprising a plurality of connecting bridge junctions; a display unit disposed on the side of the dielectric layer opposite to the substrate and located in the first region; a pin disposed between the dielectric layer and the display unit; and a groove disposed in the dielectric layer and located in the second region. Thus, the groove on the display panel can prevent cracks from extending into the display island during stretching, reduce the strain of the display island during stretching, prevent cracks from causing the display unit to detach, and improve the service life of the display panel.

[0006] According to some embodiments of the present invention, the groove is located at the connection point of the connecting bridge. This further prevents cracks at the connection point of the connecting bridge from extending into the interior of the display island.

[0007] According to some embodiments of the present invention, in the direction of the second region near the first region, the groove includes a plurality of spaced sub-grooves. This allows for better absorption of stress and strain generated during the tensile process.

[0008] According to some embodiments of the present invention, the groove surrounds the display unit and is provided continuously.

[0009] According to some embodiments of the present invention, the groove extends at least through the dielectric layer.

[0010] According to some embodiments of the present invention, the display panel further includes: a filling layer adapted to fill at least a portion of the groove, wherein the surface of the filling layer opposite to the substrate is flush with the surface of the dielectric layer opposite to the substrate.

[0011] According to some embodiments of the present invention, the material forming the filler layer includes at least one selected from polyimide, acrylic, acrylic, silicone, and epoxy resin.

[0012] According to some embodiments of the present invention, the display panel further includes: a stress barrier layer disposed between the substrate and the dielectric layer, wherein the Young's modulus of the stress barrier layer is greater than that of the substrate.

[0013] According to some embodiments of the present invention, the orthographic projection of the stress barrier layer onto the dielectric layer covers both the first region and the second region.

[0014] According to some embodiments of the present invention, the orthogonal projection of the stress barrier layer onto the dielectric layer is located in the second region.

[0015] According to some embodiments of the present invention, the stress barrier layer includes a plurality of sub-stress barrier layers, and the plurality of sub-stress barrier layers are arranged at intervals in the thickness direction of the dielectric layer.

[0016] According to some embodiments of the present invention, the groove extends through at least a portion of the stress barrier layer.

[0017] According to some embodiments of the present invention, the material forming the stress barrier layer includes at least one of Ti, Al, Mo, Ag, ITO, IZO, ZnO, In2O3, IGO, AZO, amorphous silicon, polycrystalline silicon, organic semiconductor materials, and oxygen-containing compound semiconductor materials.

[0018] In another aspect of the invention, a display device is provided, comprising the aforementioned display panel, thereby possessing all the features and advantages of the aforementioned display panel, which will not be repeated here. In general, it has at least the advantages of the display unit being less prone to detachment and having a long service life. Attached Figure Description

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1 A top view of a display panel according to an embodiment of the present invention is shown;

[0021] Figure 2 A schematic diagram of the structure of a display panel according to another embodiment of the present invention is shown;

[0022] Figure 3 This shows a schematic diagram of the structure of a display panel in the related technology;

[0023] Figure 4 A schematic diagram of the structure of a display panel according to another embodiment of the present invention is shown;

[0024] Figure 5 A schematic diagram of the structure of a display panel according to another embodiment of the present invention is shown;

[0025] Figure 6 A schematic diagram of the structure of a display panel according to another embodiment of the present invention is shown;

[0026] Figure 7 A schematic diagram of the structure of a display panel according to another embodiment of the present invention is shown;

[0027] Figure 8 A schematic diagram of the structure of a display panel according to another embodiment of the present invention is shown;

[0028] Figure 9 A schematic diagram of the structure of a display panel according to another embodiment of the present invention is shown;

[0029] Figure 10 A schematic diagram of the structure of a display panel according to another embodiment of the present invention is shown;

[0030] Figure 11 A schematic diagram of the structure of a display panel according to another embodiment of the present invention is shown;

[0031] Figure 12 A schematic diagram of the structure of a display panel according to another embodiment of the present invention is shown;

[0032] Figure 13 A schematic diagram of the structure of a display panel according to another embodiment of the present invention is shown;

[0033] Figure 14 A schematic diagram of the structure of a display panel according to another embodiment of the present invention is shown;

[0034] Figure 15A schematic diagram of the structure of a display panel according to another embodiment of the present invention is shown;

[0035] Figure 16 A schematic diagram of the structure of a display panel according to another embodiment of the present invention is shown.

[0036] Figure label:

[0037] 1: Display panel; 10: Crack; 11: Display island; 12: Connecting bridge; 111: Substrate; 112: Dielectric layer; 112A: First region; 112B: Second region; 113: Display unit; 1131: N-GaN layer; 1132: Multiple quantum well layer; 1133: N electrode; 1134: P-GaN layer; 1135: P electrode; 114: Pin; 115: Groove; 1151: First sub-groove; 1152: Second sub-groove; 1153: Third sub-groove; 1154: Fourth sub-groove; 116: Filling layer; 117: Stress barrier layer. Detailed Implementation

[0038] The embodiments of the present invention are described in detail below. These embodiments are exemplary and are only used to explain the present invention, and should not be construed as limiting the invention. Where specific techniques or conditions are not specified in the embodiments, they are performed according to the techniques or conditions described in the literature in the art or according to the product instructions. Reagents or instruments used, unless otherwise specified, are all commercially available conventional products.

[0039] In one aspect of the invention, a display panel 1 is provided, with reference to... Figure 1 and Figure 2The display panel 1 includes: multiple display islands 11 and connecting bridges 12, with adjacent display islands 11 connected by connecting bridges 12, and a cutout portion between the connecting bridges 12 and the display islands 11; each display island 11 includes: a substrate 111, a dielectric layer 112, a display unit 113, and pins 114; the dielectric layer 112 is disposed on one surface of the substrate 111, and includes a first region 112A and a second region 112B, the second region 112B being disposed around and surrounding the first region 112A, and the second region 112B including multiple connecting bridge connections; the display unit 113 is disposed on the side of the dielectric layer 112 away from the substrate 111 and located in the first region 112A; the pins 114 are disposed between the dielectric layer 112 and the display unit 113; the display panel 1 also includes a groove 115, which is disposed in the dielectric layer 112 and located in the second region 112B. Specifically, the display panel 1 includes multiple display islands 11. Any two adjacent display islands 11 are electrically connected by a connecting bridge 12. The connecting bridge 12 can be stretched or contracted, allowing the entire display panel 1 to be stretched, contracted, and twisted to a certain extent. The area on the dielectric layer 112 where display units 113 are disposed is designated as the first region 112A, and the area on the dielectric layer 112 where no display units 113 are disposed is designated as the second region 112B. The second region 112B is located around the first region 112A. For example, when the display island 11 is square, the display unit 113 is centrally located on the display island 11, and the peripheral area on the dielectric layer 112 where no display island 11 is disposed is designated as the second region 112B. Pins 114 are disposed between the display units 113 and the dielectric layer 112 to electrically connect the multiple display islands 11. Therefore, the groove 115 on the display panel 1 can prevent the crack 10 from extending into the display island 11 during the stretching process, reduce the strain of the display island 11 during the stretching process, prevent the crack 10 from causing the display unit 113 to fall off, and improve the service life of the display panel 1.

[0040] The principles by which this application achieves the aforementioned beneficial effects are explained in detail below:

[0041] refer to Figure 3In related technologies, during the stretching process, the display panel 1 experiences tensile force between the display island 11 and the connecting bridge 12, resulting in stress and strain at their connection point. The strain is greatest at this connection point, making it prone to cracks 10 at the edges of the inorganic layer and pins 114 within the display island 11. These cracks 10 extend along the inorganic layer into the display island 11. When the display unit 113 is fixed to the top of the display island 11 by bonding or welding, the large stress and strain can easily cause the welded joints of the display unit 113 to detach. In this application, the display panel 1 has a groove 115 in the second region 112B. When cracks 10 occur at the edge of the inorganic layer and extend to the groove 115, the groove 115 can absorb the stress and strain, preventing the cracks 10 from further extending into the display island 11, thus reducing the risk of the display unit 113 detaching and improving the lifespan of the display panel 1.

[0042] The specific structure of groove 115 is described in detail below:

[0043] According to some embodiments of the present invention, reference Figure 1 The groove 115 is located at the connection point of the connecting bridge. Here, the connection point refers to the dielectric layer 112 on the substrate 111 corresponding to the area where the connecting bridge 12 connects to the substrate 111 in each of the two display islands 11, when both ends of the connecting bridge 12 extend to it. Taking a square display island 11 with four connecting bridges 12 as an example, the first connection corresponds to the first connecting bridge connection point, the second connection corresponds to the second connecting bridge connection point, the third connection corresponds to the third connecting bridge connection point, and the fourth connection corresponds to the fourth connecting bridge connection point. The display island 11 is electrically connected to the other four display islands 11 through the four connecting bridges 12. During the stretching process, the strain at the connecting bridge connection point is the largest. A groove 115 can be provided at each of the four connecting bridge connections, and the grooves 115 at the four connecting bridge connections are discontinuous. This allows for a rapid response to the strain generated during the stretching process, timely and quickly absorbing stress and strain, and preventing the crack 10 from extending into the interior of the display island 11.

[0044] It should be noted that the specific dimensions of the recesses 115 at the four connecting bridges are not particularly limited and can be the same or different. Those skilled in the art can design them according to the specific requirements of the display panel 1. The specific shape of the recesses 115 is not particularly limited; for example, refer to... Figure 1 and Figure 4 The shape of the groove 115 can be as shown in the figure, but is not limited to the two shapes mentioned above.

[0045] Further, refer to Figure 5In the direction of the second region 112B near the first region 112A, the groove 115 includes a plurality of spaced-apart sub-grooves. Specifically, a plurality of sub-grooves can be provided at each connecting bridge connection. For example, a plurality of first sub-grooves 1151 are provided at the first connecting bridge connection, with the plurality of first sub-grooves 1151 spaced apart from each other; a plurality of second sub-grooves 1152 are provided at the second connecting bridge connection, with the plurality of second sub-grooves 1152 spaced apart from each other; a plurality of third sub-grooves 1153 are provided at the third connecting bridge connection, with the plurality of third sub-grooves 1153 spaced apart from each other; and a plurality of fourth sub-grooves 1154 are provided at the fourth connecting bridge connection, with the plurality of fourth sub-grooves 1154 spaced apart from each other. Thus, by providing a plurality of sub-grooves 115 at each connecting bridge connection, the stress and strain generated during the stretching process can be better absorbed, increasing the maximum deformation that the display panel 1 can withstand, making it better suited for use in display devices with high deformation requirements. It should be noted that the dimensions of the multiple sub-grooves 115 at each connecting bridge connection point are not particularly limited, and the length of the sub-grooves 115 can gradually increase in the direction away from the display unit 113. The length of the groove 115 referred to here refers to the size of the groove 115 in the extending direction of the display panel 1.

[0046] According to some embodiments of the present invention, reference Figure 6 The groove 115 surrounds the display unit 113 and is continuously arranged. That is to say, the groove 115 surrounds the display unit 113 all around. As a result, not only can it prevent the crack 10 at the connection of the connecting bridge with large strain from extending to other positions of the dielectric layer 112, but even if crack 10 occurs at other positions of the second region 112B, the annular groove 115 can also absorb stress and strain, further preventing the crack 10 in the dielectric layer 112 from extending into the display island 11, and at the same time further increasing the maximum deformation that the display panel 1 can withstand.

[0047] Further, refer to Figure 7 and Figure 8 In the second region 112B, in the direction adjacent to the first region 112A, a plurality of annular grooves 115 are provided, and the plurality of annular grooves 115 are spaced apart from each other. It should be noted that "a plurality of" here refers to two or more. For example, see reference... Figure 7 Two annular grooves 115 are provided in the second region 112B; Reference Figure 8 Three annular grooves 115 are provided in the second region 112B. This further prevents cracks 10 in the dielectric layer 112 from extending into the display island 11, and also further increases the maximum deformation that the display panel 1 can withstand. It should be noted that the specific structure and size of the multiple annular grooves 115 are not particularly limited.

[0048] It should be noted that the specific shape of the annular groove is not particularly limited; for example, the shape of the annular groove can be as follows: Figure 7 and Figure 9 As shown, but not limited to the shape shown in the figure.

[0049] According to some embodiments of the present invention, the groove 115 penetrates at least the dielectric layer 112. Specifically, when the groove 115 is only located at the connection point of the connecting bridge, the grooves 115 at multiple connection points can all penetrate the dielectric layer 112, as shown in the reference. Figure 1 The groove 115 at the connection of one or more connecting bridges penetrates the dielectric layer 112 and extends to the substrate 111 (not shown in the figure); Reference Figure 8 When the groove 115 surrounds the display unit 113 and is continuously provided, the groove 115 can also penetrate the dielectric layer 112, or the groove 115 can penetrate the dielectric layer 112 and extend to the substrate 111 (not shown in the figure). As a result, it can better prevent the crack 10 on the edge of the dielectric layer 112 from extending into the display island 11.

[0050] According to some embodiments of the present invention, reference Figure 10 The display panel 1 may further include: a filling layer 116, the filling layer 116 being adapted to fill at least a portion of the recess 115, the surface of the filling layer 116 facing away from the substrate 111 being flush with the surface of the dielectric layer 112 facing away from the substrate 111. Preferably, reference Figure 11 When the display panel 1 includes multiple recesses 15, a filling layer 116 is provided in all recesses 115. The filling layer 116 can make the surface of the dielectric layer 112 smoother and the pins 114 on the surface of the dielectric layer 112 flatter (see reference). Figure 12 This reduces the risk of pin 114 breaking.

[0051] According to some embodiments of the present invention, the material forming the filler layer 116 is not particularly limited. For example, the material forming the filler layer 116 includes at least one of polyimide, acrylic, acrylic, silicone, and epoxy resin. Thus, when the crack 10 extends to the organic adhesive material of the groove 115, the elastic organic adhesive material will not break, the crack 10 is blocked, further preventing the crack 10 from extending into the display island 11, and increasing the maximum deformation that the display panel 1 can withstand.

[0052] According to some embodiments of the present invention, reference Figure 13The display panel 1 may further include a stress-barrier layer 117, which is disposed between the substrate 111 and the dielectric layer 112. The Young's modulus of the stress-barrier layer 117 is greater than that of the substrate 111. Specifically, the display panel 1 can prevent cracks 10 from extending towards the back of the display island 11 by providing a groove 115 only in the dielectric layer 112 and providing a stress-barrier layer 117, or by providing a groove 115 in the dielectric layer 112 and a filling layer 116 within the groove 115, while providing a stress-barrier layer 117 to prevent cracks 10 from extending into the display island 11. Thus, the stress-barrier layer 117 can improve the strength of the display panel 1, thereby increasing the threshold for cracks 10 to occur in the display panel 1 and reducing the probability of cracks 10 occurring. At the same time, even if cracks 10 occur, the groove 115 can further prevent cracks 10 from extending into the display island 11.

[0053] The structure of stress barrier layer 117 is described in detail below:

[0054] According to some embodiments of the present invention, the orthographic projection of the stress barrier layer 117 onto the dielectric layer 112 lies within the second region 112B. Specifically, the orthographic projection of the stress barrier layer 117 onto the dielectric layer 112 may be smaller than the orthographic projection of the dielectric layer 112 of the second region 112B onto the substrate 111, or the orthographic projection of the stress barrier layer 117 onto the dielectric layer 112 may be equal to the orthographic projection of the dielectric layer 112 of the second region 112B onto the substrate 111. (See reference...) Figure 13 Taking the square display island 11 as an example, the second region 112B surrounds the first region 112A, which is equivalent to a stress-barrier layer 117 being provided on the outer periphery of the display unit 113. This further improves the strength of the display panel 1 and increases the threshold for the formation of cracks 10 in the display panel 1. According to some specific embodiments of the present invention, the stress-barrier layer 117 can also be constructed as multiple layers, with multiple stress-barrier layers 117 arranged at intervals in the thickness direction of the dielectric layer 112.

[0055] According to some embodiments of the present invention, reference Figure 14 The orthographic projection of the stress barrier layer 117 onto the dielectric layer 112 covers the first region 112A and the second region 112B. Specifically, when the orthographic projection of the dielectric layer 112 onto the substrate 111 coincides with the substrate 111, the orthographic projection of the stress barrier layer 117 onto the substrate 111 also coincides with the substrate 111. Thus, a stress barrier layer 117 is provided between the dielectric layer 112 and the substrate 111 of the entire display panel 1, which can further improve the strength of the display panel 1 and increase the threshold for the formation of cracks 10 in the display panel 1. It should be noted that, referring to... Figure 15When a stress barrier layer 117 is provided between the dielectric layer 112 and the substrate 111, the stress barrier layer 117 can also be constructed as multiple layers, with multiple stress barrier layers 117 arranged at intervals in the thickness direction of the dielectric layer 112.

[0056] According to some specific embodiments of the present invention, the groove 115 penetrates at least a portion of the stress-retaining layer 117. Specifically, when the orthogonal projection of the stress-retaining layer 117 onto the dielectric layer 112 is located within the second region 112B and only one stress-retaining layer 117 is disposed between the dielectric layer 112 and the substrate 111, the groove 115 may extend to the stress-retaining layer 117 but not penetrate the stress-retaining layer 117 (not shown in the figure), or the groove 115 may directly penetrate the stress-retaining layer 117 (see reference). Figure 13 When multiple stress barrier layers 117 are disposed between the dielectric layer 112 and the substrate 111, the groove 115 may penetrate part of the stress barrier layer 117, or the groove 115 may penetrate all of the stress barrier layer 117 (see reference). Figure 15 According to other specific embodiments of the present invention, when the orthogonal projection of the stress barrier layer 117 on the dielectric layer 112 covers the first region 112A and the second region 112B, and only one stress barrier layer 117 is disposed between the dielectric layer 112 and the substrate 111, the groove 115 may extend to the stress barrier layer 117 but not penetrate the stress barrier layer 117, or the groove 115 may directly penetrate the stress barrier layer 117 (see reference). Figure 14 When the orthogonal projection of the stress barrier layer 117 onto the dielectric layer 112 covers the first region 112A and the second region 112B, and multiple stress barrier layers 117 are disposed between the dielectric layer 112 and the substrate 111, the groove 115 may penetrate a portion of the stress barrier layer 117, or the groove 115 may penetrate all of the stress barrier layer 117 (see reference). Figure 16 ).

[0057] According to some specific embodiments of the present invention, the material forming the stress barrier layer 117 is not particularly limited, and those skilled in the art can select it according to actual needs, as long as the material forming the stress barrier layer 117 can reduce the stress and strain on the dielectric layer 112 during the stretching of the display panel 1, thereby reducing the risk of detachment at the joint between the display unit 113 and the display island 11.

[0058] According to some specific embodiments of the present invention, the material forming the substrate 111 is not particularly limited, and may include, for example, at least one of polyimide, polyethylene terephthalate, and metal.

[0059] According to some specific embodiments of the present invention, the material forming the dielectric layer 112 includes SiO2. x SiON x SiN xThe polymer is selected from at least one of the following: polymers of polymethyl methacrylate and polystyrene; polymer derivatives based on phenol groups; polymers based on acrylic; polymers based on p-xylene; polymers based on aryl ethers; polymers based on amides; polymers based on fluorides; and polymers based on vinyl alcohol. Further, the dielectric layer 112 may be a single layer or multiple layers.

[0060] According to some specific embodiments of the present invention, the display panel 1 may further include a touch function layer disposed on the display island 11.

[0061] According to some embodiments of the present invention, the specific structure of the display unit 113 is not particularly limited. For example, when the display unit 113 is an LED display unit, refer to... Figure 16 The display unit 113 may include: an N-GaN layer 1131, a multi-quantum well layer 1132 and an N electrode 1133 disposed on the surface of the N-GaN layer 1131 facing the substrate 111, a P-GaN layer 1134 disposed on the surface of the multi-quantum well layer 1132 facing the substrate 111, a P electrode 1135 disposed on the surface of the P-GaN layer 1134 facing the substrate 111, a pin 114 disposed on the surface of the P electrode 1135 facing the substrate 111, and a pin 114 disposed on the surface of the N electrode facing the substrate 111.

[0062] According to some specific embodiments of the present invention, the material forming the multiple quantum well layer 1132 includes at least one of InGaN and GaN.

[0063] According to some specific embodiments of the present invention, the materials forming the pins 114, the N electrode, and the P electrode 1135 may each independently include at least one of conductive metals, conductive oxides, and rubber mixed with conductive particles. Specifically, the materials forming the pins 114, the N electrode, and the P electrode 1135 may each independently include at least one of Ti, Al, Mo, Ag, ITO, IZO, ZnO, In2O3, IGO, AZO, and carbon nanotubes.

[0064] In another aspect of the invention, a display device is provided, comprising the aforementioned display panel 1. This display device possesses all the features and advantages of the aforementioned display panel 1, which will not be repeated here. In general, it has at least the advantages of the display unit 113 being less prone to detachment and having a long service life.

[0065] According to some specific embodiments of the present invention, the types of display devices include, but are not limited to, mobile phones, monitors, and televisions.

[0066] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0067] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0068] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0069] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0070] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0071] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A display panel, characterized in that, include: Multiple display islands and connecting bridges, with adjacent display islands connected by the connecting bridges; The display island includes: Substrate; A dielectric layer is disposed on a surface of the substrate. The dielectric layer includes a first region and a second region. The second region is disposed around and surrounds the first region. The second region includes a plurality of interconnecting bridges. The material forming the dielectric layer includes at least one of SiOx, SiONx, and SiNx. The display unit is disposed on the side of the dielectric layer opposite to the substrate and located in the first region; Pins, wherein the pins are disposed between the dielectric layer and the display unit; A groove is disposed in the dielectric layer and located in the second region; the groove at least penetrates the dielectric layer; A stress-blocking layer is disposed between the substrate and the dielectric layer. The Young's modulus of the stress-blocking layer is greater than that of the substrate. The orthographic projection of the stress-blocking layer on the dielectric layer is located in the second region, or the orthographic projection of the stress-blocking layer on the dielectric layer covers both the first region and the second region.

2. The display panel according to claim 1, characterized in that, The groove is located at the connection point of the connecting bridge.

3. The display panel according to claim 1 or 2, characterized in that, In the direction of the second region toward the first region, the groove includes a plurality of spaced sub-grooves.

4. The display panel according to claim 1 or 2, characterized in that, The groove surrounds the display unit and is provided continuously.

5. The display panel according to claim 1, characterized in that, Further includes: A filler layer adapted to fill at least a portion of the groove, wherein the surface of the filler layer opposite to the substrate is flush with the surface of the dielectric layer opposite to the substrate.

6. The display panel according to claim 5, characterized in that, The material forming the filler layer includes at least one of polyimide, acrylic, acrylic, silicone, and epoxy resin.

7. The display panel according to claim 1, characterized in that, The stress barrier layer includes multiple sub-stress barrier layers, which are arranged at intervals along the thickness direction of the dielectric layer.

8. The display panel according to claim 1, characterized in that, The groove penetrates at least a portion of the stress barrier layer.

9. The display panel according to claim 1, characterized in that, The material forming the stress barrier layer includes at least one of Ti, Al, Mo, Ag, ITO, IZO, ZnO, In2O3, IGO, AZO, amorphous silicon, polycrystalline silicon, organic semiconductor materials, and oxygen-containing compound semiconductor materials.

10. A display device, characterized in that, The display panel includes any one of claims 1 to 9.

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