Flexible substrate and display device

Abstract

The application provides a flexible substrate, comprising: a flexible substrate, a plurality of pixel islands arranged in an array on the flexible substrate, and a plurality of first connecting bridges and a plurality of second connecting bridges for connecting adjacent pixel islands. The first connecting bridge comprises a first sub-connecting bridge and a second sub-connecting bridge. The first sub-connecting bridge is located on the side of the pixel island close to the flexible substrate. The second sub-connecting bridge is located on the side of the pixel island away from the flexible substrate. The plane where the second connecting bridge is located is in the same plane as the plane where the pixel island is located. When the flexible substrate is stretched, adjacent two pixel islands will generate a rotating trend opposite to each other and a flip trend in a certain direction, which can effectively reduce the viewing angle, reduce the probability of color deviation at the curved surface, and improve the display effect of the flexible display device.

Description

[0001] This application is a divisional application of the invention patent application with application number 202010182724.8 and the invention name of "a flexible substrate and display device". TECHNICAL FIELD

[0002] The present application relates to the technical field of display, in particular to a flexible substrate and display device. BACKGROUND

[0003] With the development of information society, various types of flat panel display devices have appeared, such as liquid crystal display panels, plasma display panels, and electrophoretic display panels. However, traditional display panels are made of rigid materials such as glass, and the size and shape of the display panel are fixed after production, which cannot meet the use of multiple occasions and complex environments. Therefore, people have been working hard to research flexible display devices that can be bent, stretched, and folded for many years.

[0004] In recent years, there have been many bendable, stretchable, and foldable display products. However, the applicant found that when the flexible display device is bent with a large radius of curvature, color cast occurs at the edge of the curved surface when the user looks directly at the curved surface of the flexible display device, which seriously affects the display effect of the flexible display device. Therefore, the traditional flexible display device can only be bent with a small radius of curvature, and the display effect of the flexible display device is not better than that of the traditional glass rigid display device. SUMMARY

[0005] Therefore, the present application provides a flexible substrate and display device to solve the technical problem that color cast easily occurs at the edge of the curved surface when the flexible display device is bent with a large radius of curvature.

[0006] In order to solve the above problems, the embodiments of the present application mainly provide the following technical solutions:

[0007] In a first aspect, the embodiments of the present application disclose a flexible substrate, comprising: a flexible substrate, a plurality of pixel islands arranged in an array on the flexible substrate, and a plurality of first connecting bridges and a plurality of second connecting bridges for connecting adjacent pixel islands;

[0008] The first connecting bridge comprises a first sub-connecting bridge and a second sub-connecting bridge;

[0009] The first sub-connecting bridge is located on the side of the pixel island close to the flexible substrate;

[0010] The second sub-connecting bridge is located on the side of the pixel island away from the flexible substrate;

[0011] The plane where the second connecting bridge is located is in the same plane as the plane where the pixel island is located.

[0012] Optionally, the first sub-connection bridge extends along a preset direction.

[0013] The plane in which the second sub-connection bridge lies is parallel to the plane in which the first sub-connection bridge lies.

[0014] Optionally, the material of the second sub-connection bridge comprises a conductive material, and the second sub-connection bridge and a cathode comprised by the pixel island are located in the same layer.

[0015] Optionally, the first sub-connection bridge is embedded into the side of the flexible substrate facing the pixel island.

[0016] Optionally, the plane in which the first sub-connection bridge lies forms a first preset angle with the plane in which the second connection bridge lies, and the plane in which the second sub-connection bridge lies forms a second preset angle with the plane in which the second connection bridge lies.

[0017] The first preset angle is equal to the second preset angle.

[0018] Optionally, the second connection bridge comprises a third sub-connection bridge and a fourth sub-connection bridge.

[0019] When the flexible substrate is stretched, the third sub-connection bridge and the fourth sub-connection bridge extend in opposite directions.

[0020] Optionally, when the flexible substrate is stretched, the third sub-connection bridge extends in a first direction, and the fourth sub-connection bridge extends in a direction opposite to the first direction; the first direction is the same as the stretching direction of the flexible substrate when the flexible substrate is stretched.

[0021] Optionally, the third sub-connection bridge and the fourth sub-connection bridge are in the shape of a cuboid or a convex structure or a concave structure with a preset radius of curvature.

[0022] Optionally, the external contour of the pixel island is in one of a circular shape or a polygonal shape.

[0023] In a second aspect, the embodiments of the present application disclose a display device, comprising the flexible substrate of the first aspect.

[0024] By means of the above technical solutions, the technical solutions provided by the embodiments of the present application have at least the following advantages:

[0025] Since the flexible substrate of the embodiment of the present application comprises a plurality of pixel islands arranged in an array, adjacent pixel islands are connected through a first connecting bridge and a second connecting bridge, the first connecting bridge comprises a first sub-connecting bridge and a second sub-connecting bridge; since the plane where the second connecting bridge is located and the plane where the pixel island is located are located in the same plane, when the flexible substrate is stretched, the adjacent two pixel islands will have opposite rotation trends, and the first sub-connecting bridge is located on the side of the pixel island close to the flexible substrate, and the second sub-connecting bridge is located on the side of the pixel island away from the flexible substrate, so that the first sub-connecting bridge and the second sub-connecting bridge will inhibit the rotation of the pixel island, thereby making the pixel island have a tendency to flip, and the design that the pixel island 3 has a tendency to flip can ensure a good viewing angle of the flexible substrate under the condition of being stretched and bent, reduce the occurrence of color deviation at the edge, and improve the display effect of the flexible display substrate.

[0026] The above description is only a summary of the technical solutions of the embodiments of the present application, in order to more clearly understand the technical means of the embodiments of the present application, and can be implemented according to the content of the specification, and in order to make the above and other purposes, characteristics and advantages of the embodiments of the present application more obvious and easy to understand, the following specific embodiments of the embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0027] By reading the detailed description of the following optional embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of illustrating optional embodiments and are not considered as limiting the embodiments of the present application. Moreover, the same reference symbols are used throughout the drawings to represent the same parts. In the drawings:

[0028] Figure 1 is a structural schematic view of the flexible substrate of the embodiment of the present application;

[0029] Figure 2 is a structural schematic view of one of the pixel islands included in the flexible substrate of the embodiment of the present application;

[0030] Figure 3 is a structural schematic view of the pixel island adjacent to the Figure 2 pixel island shown in the embodiment of the present application;

[0031] Figure 4 is a structural schematic view of the adjacent pixel islands connected in the embodiment of the present application.

[0032] The following is an introduction of the reference symbols:

[0033] 1 - flexible substrate; 2 - flexible substrate; 3 - pixel island; 31 - first pixel island; 32 - second pixel island; 4 - first connecting bridge; 41 - first sub-connecting bridge; 42 - second sub-connecting bridge; 5 - second connecting bridge; 51 - third sub-connecting bridge; 52 - fourth sub-connecting bridge; 6 - pixel island plane; 7 - sub-pixel unit. Detailed Implementation

[0034] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0035] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in the specification of this application means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that the term “and / or” as used herein includes all or any units and all combinations of one or more associated listed items.

[0036] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0037] In a first aspect, embodiments of this application disclose a flexible substrate, comprising: a flexible substrate, a plurality of pixel islands arranged in an array on the flexible substrate, and a plurality of first connecting bridges and a plurality of second connecting bridges for connecting adjacent pixel islands; the first connecting bridge includes a first sub-connecting bridge and a second sub-connecting bridge; the first sub-connecting bridge is located on the side of the pixel island closer to the flexible substrate; the second sub-connecting bridge is located on the side of the pixel island away from the flexible substrate; and the plane on which the second connecting bridge is located is on the same plane as the plane on which the pixel island is located.

[0038] The flexible substrate disclosed by the embodiment of the present application comprises a plurality of pixel islands arranged in an array, adjacent pixel islands are connected through first connecting bridges and second connecting bridges, the first connecting bridges comprise first sub-connecting bridges and second sub-connecting bridges; since the plane where the second connecting bridges are located and the plane where the pixel islands are located are located in the same plane, when the flexible substrate is stretched, the adjacent two pixel islands will generate opposite rotation trends, the first sub-connecting bridges are located on the side of the pixel islands close to the flexible substrate, and the second sub-connecting bridges are located on the side of the pixel islands away from the flexible substrate, so that the first sub-connecting bridges and the second sub-connecting bridges will inhibit the rotation of the pixel islands, thereby making the pixel islands generate a tendency to flip, and the design that the pixel islands 3 generate a tendency to flip can ensure a good viewing angle of the flexible substrate under the condition of being stretched and bent, reduce the occurrence of color deviation at the edge, and improve the display effect of the flexible display substrate.

[0039] As shown in Figure 1 The flexible substrate 1 disclosed by the embodiment of the present application comprises a flexible substrate 2, a plurality of pixel islands 3 arranged in an array on the flexible substrate 2, and a plurality of first connecting bridges 4 and a plurality of second connecting bridges 5 for connecting adjacent pixel islands 3. The first connecting bridges 4 comprise first sub-connecting bridges 41 and second sub-connecting bridges 42. The first sub-connecting bridges 41 are located on the side of the pixel islands 3 close to the flexible substrate 2. The second sub-connecting bridges 42 are located on the side of the pixel islands 3 away from the flexible substrate 2. The plane where the second connecting bridges 5 are located and the plane where the pixel islands 3 are located are located in the same plane.

[0040] Since the plane where the second connecting bridges 5 of the embodiment of the present application are located and the plane where the pixel islands 3 are located are located in the same plane, when the flexible substrate 1 is stretched, the adjacent two pixel islands 3 will generate opposite rotation trends, the first sub-connecting bridges 41 are located on the side of the pixel islands 3 close to the flexible substrate 2, and the second sub-connecting bridges 42 are located on the side of the pixel islands 3 away from the flexible substrate 2, so that the first sub-connecting bridges 41 and the second sub-connecting bridges 42 will inhibit the rotation of the pixel islands 3, thereby making the pixel islands 3 generate a tendency to flip, and the design that the pixel islands 3 generate a tendency to flip can ensure a good viewing angle of the flexible substrate 1 under the condition of being stretched and bent, reduce the occurrence of color deviation at the edge, and improve the display effect of the flexible display substrate 1.

[0041] As shown in Figure 1 Since when the flexible substrate 1 is stretched, the adjacent two pixel islands 3 will generate opposite rotation trends, the embodiment of the present application describes the adjacent two pixel islands 3 as a first pixel island 31 and a second pixel island 32, specifically, in the direction parallel to the first row of pixel islands 3, the first pixel island 31 and the second pixel island 32 are arranged alternately.

[0042] Optionally, the first sub-connection bridge 41 extends along a preset direction, and the plane where the second sub-connection bridge 42 is located is parallel to the plane where the first sub-connection bridge 41 is located. The preset direction can be set according to the specific external contour shape of the pixel island. Specifically, as shown in Figure 1 , the external contour shape of the first pixel island 31 and the second pixel island 32 is circular. Although the external contour shape of the pixel island 3 in this embodiment is circular, the external contour shape of the pixel island 3 in this embodiment is not limited to circular, for example, it can also be polygonal.

[0043] As shown in Figure 1 , Figure 2 and Figure 3 , the first sub-connection bridge 41 extends along the tangent direction of the circular contour of the first pixel island 31 and the second pixel island 32, one end of the first sub-connection bridge 41 is connected to the pixel island plane 6 of the first pixel island 31, and the other end is connected to the pixel island plane 6 of the second pixel island 32. The plane where the second sub-connection bridge 42 is located is parallel to the plane where the first sub-connection bridge 41 is located, one end of the second sub-connection bridge 42 is connected to the pixel island plane 6 of the first pixel island 31, and the other end is connected to the pixel island plane 6 of the second pixel island 32.

[0044] Optionally, as shown in Figure 1 , Figure 2 and Figure 3 , the second connection bridge 5 includes a third sub-connection bridge 51 and a fourth sub-connection bridge 52. When the flexible substrate 2 is stretched, the third sub-connection bridge 51 and the fourth sub-connection bridge 52 extend in opposite directions. Specifically, as shown in Figure 2 and Figure 3 , the external contour shape of the first pixel island 31 and the second pixel island 32 is circular, the third sub-connection bridge 51 extends along the tangent direction of the circular contour of the first pixel island 31 and the second pixel island 32, one end of the third sub-connection bridge 51 is connected to the pixel island plane 6 of the first pixel island 31, and the other end is connected to the pixel island plane 6 of the second pixel island 32; the fourth sub-connection bridge 52 extends along the tangent direction of the circular contour of the first pixel island 31 and the second pixel island 32, one end of the fourth sub-connection bridge 52 is connected to the pixel island plane 6 of the first pixel island 31, and the other end is connected to the pixel island plane 6 of the second pixel island 32.

[0045] Optionally, as shown in Figure 1 , when the flexible substrate 2 is stretched, the third sub-connection bridge 51 extends in the first direction, and the fourth sub-connection bridge 52 extends in the direction opposite to the first direction, and the first direction is the same as the stretching direction when the flexible substrate 2 is stretched.

[0046] Specifically, as shown in Figure 2 , Figure 3 and Figure 4As shown, the third sub-connection bridge 51 connected with the first pixel island 31 extends in the horizontal direction at the top of the first pixel island 31 body, while the fourth sub-connection bridge 52 connected with the first pixel island 31 extends in the horizontal direction at the bottom of the first pixel island 31 body. Similarly, the third sub-connection bridge 51 connected with the second pixel island 32 extends in the horizontal direction at the top of the second pixel island 32 body, while the fourth sub-connection bridge 52 connected with the second pixel island 32 extends in the horizontal direction at the bottom of the second pixel island 31 body, and the adjacent first pixel island 31 and second pixel island 32 after connection are mirror image arranged.

[0047] It should be noted that the first pixel island 31 includes a plurality of first sub-pixel units, and the second pixel island 32 includes a plurality of second sub-pixel units, and the first sub-pixel units and the second sub-pixel units are not mirror image arranged.

[0048] As shown, Figure 1 Because the first sub-connection bridge 41 and the second sub-connection bridge 42 of the embodiment of the application are arranged on both sides of the pixel island 3, and the two ends of the first sub-connection bridge 41 and the second sub-connection bridge 42 are connected to the first pixel island 31 and the second pixel island 32 respectively. When the flexible substrate 1 is stretched, causing the pixel island 3 to have a rotating trend, the first sub-connection bridge 41 and the second sub-connection bridge 42 will inhibit the rotation of the first pixel island 31 and the second pixel island 32. Specifically, as shown, Figure 2 When the first pixel island 31 has a rotating trend, the first sub-connection bridge 41 will generate a downward pulling component force, and at the same time, the second sub-connection bridge 42 will generate an upward pulling component force, thereby causing the first pixel island 31 to have a tendency to flip. Similarly, as shown, Figure 3 When the second pixel island 32 has a rotating trend, the second sub-connection bridge 42 will generate a downward pushing component force, and the first sub-connection bridge 41 will generate an upward pushing component force, thereby causing the second pixel island 32 to have a tendency to flip. As shown, Figures 1-3 The flipping trend of the first pixel island 31 and the second pixel island 32 is to flip to the left, and the stretching direction is left-right stretching, so that the flexible substrate 1 of the embodiment of the application can still ensure good viewing angle under the condition of being stretched and bent, and reduce the occurrence of color deviation at the edge.

[0049] Optionally, the plane where the first sub-connection bridge 41 is located and the plane where the second connection bridge 5 is located form a first preset angle A1, and the plane where the second sub-connection bridge 42 is located and the plane where the second connection bridge 5 is located form a second preset angle A2. Specifically, the first preset angle A1 and the second preset angle A2 are equal. In specific implementation, the preset angle can be 45 degrees. Specifically, as shown, Figures 1-3As shown, since the outer contours of the first pixel island 31 and the second pixel island 32 in this embodiment are circular, and the first sub-connecting bridge 41 and the second sub-connecting bridge 42 extend along the tangent direction of the outer contours of the first pixel island 31 and the second pixel island 32, this helps to suppress the rotation of the first pixel island 31 and the second pixel island 32.

[0050] Optionally, the material of the second sub-connecting bridge 42 includes a conductive material, and the second sub-connecting bridge 42 and the cathode included in the pixel island 3 are located on the same layer. In this embodiment, since the second sub-connecting bridge 42 is made of a conductive material, it can be made into a metal line that runs through the entire screen. This not only improves the stability of the second sub-connecting bridge 42, but also allows it to be located on the same layer as the cathode and connected to it, which can reduce the cathode resistance in non-light-emitting areas, thereby improving luminous efficiency and brightness uniformity.

[0051] Optionally, the first sub-connecting bridge 41 is embedded in the flexible substrate 2 on the side facing the pixel island 3. Structurally, the first sub-connecting bridge 41 is lower than the pixel island plane 6 and embedded in the flexible substrate 2, thereby ensuring that the deformation resistance of the first sub-connecting bridge 41 is greater than that of the pixel island 3. The second sub-connecting bridge 42 is higher than the pixel island plane 6, and the connection between the second sub-connecting bridge 42 and the pixel island plane is made of an insulator. During fabrication, a laser is used to remove the organic film layer on the surface of the second sub-connecting bridge 42 before fabricating the cathode, which can reduce the cathode resistance in the non-light-emitting area, thereby improving the luminous efficiency.

[0052] like Figures 2-4 As shown, both the first pixel island 31 and the second pixel island 32 include multiple sub-pixel units 7. In specific implementations, the sub-pixel units 7 are individually packaged to ensure the stability of the light-emitting device.

[0053] like Figures 1-4 As shown, since the second connecting bridge 5 is located on the same plane as the first pixel island 31 and the second pixel island 32, when the flexible substrate 1 is stretched, adjacent pixel islands 3 will have opposite rotational tendencies. Since the first sub-connecting bridge 41 and the second sub-connecting bridge 42 are respectively disposed on both sides of the pixel island 3, and the first pixel island 31 and the second pixel island 32 are respectively connected to the second connecting bridge 5, the first sub-connecting bridge 41 and the second sub-connecting bridge 42 will suppress the rotation of the first pixel island 31 and the second pixel island 32. Specifically, as... Figure 4As shown, when the first pixel island 31 has a tendency to rotate, the first sub-connection bridge 41 will generate a downward pulling component force, while the second sub-connection bridge 42 will generate an upward pulling component force, thereby making the first pixel island 31 have a tendency to flip. Similarly, when the second pixel island 32 has a tendency to rotate, the second sub-connection bridge 42 will generate a downward pushing component force, and the first sub-connection bridge 41 will generate an upward pushing component force, thereby making the second pixel island 32 have a tendency to flip. As shown, the flipping tendencies of the first pixel island 31 and the second pixel island 32 are both to the left, and the stretching direction is left-right stretching, so that the flexible substrate 1 of the embodiment of the present application can still ensure a good viewing angle in the case of tensile bending, and reduce the occurrence of color deviation at the edge. Figures 1-4 As shown, the flipping tendencies of the first pixel island 31 and the second pixel island 32 are both to the left, and the stretching direction is left-right stretching, so that the flexible substrate 1 of the embodiment of the present application can still ensure a good viewing angle in the case of tensile bending, and reduce the occurrence of color deviation at the edge.

[0054] In addition, due to the opposite arrangement of the third sub-connection bridge 51 of the first pixel island 31 and the third sub-connection bridge 51 of the second pixel island 32, and the opposite arrangement of the fourth sub-connection bridge 52 of the first pixel island 31 and the fourth sub-connection bridge 52 of the second pixel island 32, such a structure can perform wiring on the third sub-connection bridge 51 and the fourth sub-connection bridge 52, further simplifying the overall structure of the flexible substrate 1.

[0055] Alternatively, the third sub-connection bridge 51 and the fourth sub-connection bridge 52 are in the shape of a cuboid or a convex structure or a concave structure with a preset radius of curvature. In an embodiment, the third sub-connection bridge 51 and the fourth sub-connection bridge 52 are concave structures with curvature. In specific implementation, the thickness of the third sub-connection bridge 51 and the fourth sub-connection bridge 52 can be reduced to further reduce the flipping of the pixel island 3, or the thickness of the third sub-connection bridge 51 and the fourth sub-connection bridge 52 can be increased to increase the flipping amplitude of the pixel island 3, thereby controlling the flipping of the pixel island 3.

[0056] In a second aspect, the embodiment of the present application discloses a display device, comprising the flexible substrate of the first aspect. Since the display device of the second aspect comprises the flexible substrate 1 of the first aspect, the display device has the same beneficial technical effects as the flexible substrate 1. Therefore, the beneficial effects of the display device of the second aspect are not repeated here.

[0057] The beneficial effects obtained by applying the embodiment of the present application include:

[0058] 1. Since the plane of the second connecting bridge 5 in this embodiment is located on the same plane as the plane of the pixel island 3, when the flexible substrate 1 is stretched, the two adjacent pixel islands 3 will have opposite rotational tendencies. The first sub-connecting bridge 41 is located on the side of the pixel island 3 closer to the flexible substrate 2, and the second sub-connecting bridge 42 is located on the side of the pixel island 3 away from the flexible substrate 2. In this way, the first sub-connecting bridge 41 and the second sub-connecting bridge 42 will suppress the rotation of the pixel island 3, thereby causing the pixel island 3 to have a flipping tendency. The design of the pixel island 3 having a flipping tendency can ensure a good viewing angle when the flexible substrate 1 is stretched and bent, reduce the occurrence of color shift at the edge, and improve the display effect of the flexible display substrate 1.

[0059] 2. Since the second sub-connecting bridge 42 is made of conductive material, it can be made into a metal line that runs through the entire screen. This not only improves the stability of the second sub-connecting bridge 42, but also allows it to be located on the same layer as the cathode and connected to it, thereby improving luminous efficiency and brightness uniformity.

[0060] 3. Since the first sub-connecting bridge 41 is embedded in the flexible substrate 2 on the side facing the pixel island 3, structurally, the first sub-connecting bridge 41 is lower than the pixel island plane 6 and embedded in the flexible substrate 2, thereby ensuring that the deformation resistance of the first sub-connecting bridge 41 is greater than the deformation resistance of the pixel island 3.

[0061] 4. Because the third sub-connecting bridge 51 and the fourth sub-connecting bridge 52 are cuboids or protruding or recessed structures with a preset radius of curvature. Specifically, the third sub-connecting bridge 51 and the fourth sub-connecting bridge 52 are concave structures with curvature. In this embodiment, the thickness of the third sub-connecting bridge 51 and the fourth sub-connecting bridge 52 can be reduced to further reduce the flipping of the pixel island 3, or the thickness of the third sub-connecting bridge 51 and the fourth sub-connecting bridge 52 can be increased to increase the flipping amplitude of the pixel island 3, thereby controlling the flipping of the pixel island 3.

[0062] The above description is only a partial embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A flexible substrate, characterized in that, include: A flexible substrate, a plurality of pixel islands located on the flexible substrate, and a first connecting bridge and a second connecting bridge for connecting adjacent pixel islands; The first connecting bridge includes a first sub-connecting bridge and a second sub-connecting bridge, which are disposed on both sides of the pixel island; The plane where the second connecting bridge is located is on the same plane as the plane where the pixel island is located; The two adjacent pixel islands are respectively the first pixel island and the second pixel island, and the two ends of the first sub-connecting bridge and the second sub-connecting bridge are respectively connected to the first pixel island and the second pixel island; The first sub-connecting bridge extends along a preset direction; The first sub-connecting bridge is located on the side of the pixel island closer to the flexible substrate; The second sub-connecting bridge is located on the side of the pixel island away from the flexible substrate; the plane of the second sub-connecting bridge is parallel to the plane of the first sub-connecting bridge.

2. The flexible substrate as described in claim 1, characterized in that, The second sub-connecting bridge is made of a conductive material, and the second sub-connecting bridge and the cathode included in the pixel island are located on the same layer.

3. The flexible substrate as described in claim 1, characterized in that, The first sub-connecting bridge is embedded in the flexible substrate on the side facing the pixel island.

4. The flexible substrate as described in claim 1, characterized in that, The second connecting bridge includes a third sub-connecting bridge and a fourth sub-connecting bridge; The third sub-connecting bridge and the fourth sub-connecting bridge extend in opposite directions.

5. The flexible substrate as described in claim 4, characterized in that, The third sub-connecting bridge extends along a first direction, and the fourth sub-connecting bridge extends along a direction opposite to the first direction; the first direction is the same as the stretching direction when the flexible substrate is stretched.

6. The flexible substrate as described in claim 5, characterized in that, The third and fourth sub-connecting bridges are rectangular parallelepipeds or have a protruding or recessed structure with a preset radius of curvature.

7. The flexible substrate according to any one of claims 1-6, characterized in that, The outer contour of the pixel island is either circular or polygonal.

8. The flexible substrate according to any one of claims 1-6, characterized in that, The pixel islands are arranged in an array; The first pixel island and the second pixel island are arranged alternately in a direction parallel to the first row of pixel islands.

9. The flexible substrate according to any one of claims 1-6, characterized in that, After connection, the adjacent first pixel island and the second pixel island are set as mirror images.

10. The flexible substrate according to any one of claims 1-6, characterized in that, The first pixel island includes a plurality of first sub-pixel units, and the second pixel island includes a plurality of second sub-pixel units. The first sub-pixel units and the second sub-pixel units are not mirror images of each other.

11. The flexible substrate according to any one of claims 1-6, characterized in that, The second sub-connecting bridge is made of metal and extends across the entire screen.

12. The flexible substrate according to any one of claims 1-6, characterized in that, The connection between the second sub-connecting bridge and the pixel island plane is made of an insulating material.

13. The flexible substrate according to any one of claims 1-6, characterized in that, The plane where the first sub-connecting bridge is located forms a first preset angle with the outer contour of the pixel island, and the plane where the second sub-connecting bridge is located forms a second preset angle with the outer contour of the pixel island.

14. A display device, characterized in that, include: The flexible substrate as described in any one of claims 1-13.

Images