Flexible display cover and flexible display device

Abstract

This application discloses a flexible display cover and a flexible display device. The flexible display cover includes a body and a first hardening layer. The body includes a first surface and a second surface disposed opposite to each other. The first hardening layer is disposed on the first surface. In a first direction of winding the flexible display cover, the first hardening layer includes a plurality of first sub-components spaced apart. The first sub-components are embedded in the body, and the surface of the first sub-components facing away from the body is flush with the first surface. Through the above method, this application ensures the rollability and scratch resistance of the flexible display cover while reducing damage to the hardening layer during the winding process, improving the user experience and extending the service life of the flexible display cover.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a flexible display cover and a flexible display device. Background Technology

[0002] Flexible display devices are attracting increasing attention from consumers and manufacturers due to their diverse forms and portability. A flexible display device typically consists of a flexible screen and a flexible cover plate disposed on the light-emitting side of the flexible screen.

[0003] Generally, to enhance the scratch resistance of flexible display cover plates, a hard coating (HC) is introduced on their outer surface. Due to the high modulus of the hard coating itself, it is prone to damage during the winding process, thereby reducing the user experience and lifespan of flexible display devices. Summary of the Invention

[0004] The main technical problem solved by this application is to provide a flexible display cover and a flexible display device that, while ensuring the rollability and scratch resistance of the flexible display cover, reduces the damage of the hardened layer during the rolling process of the flexible display cover, improves the user experience, and extends the service life of the flexible display cover.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application is: to provide a flexible display cover plate, including: a body, including a first surface and a second surface disposed opposite to each other; a first hardening layer disposed on the first surface; in a first direction of the flexible display cover plate being rolled up, the first hardening layer includes a plurality of first sub-components disposed at intervals, the first sub-components being embedded in the body, and the side surface of the first sub-components facing away from the body being flush with the first surface.

[0006] To solve the above-mentioned technical problems, another technical solution adopted in this application is to provide a flexible display device, including the aforementioned flexible display cover plate.

[0007] Unlike existing technologies, the advantages of this application are as follows: The flexible display cover includes a body and a first hardening layer. The body includes a first surface and a second surface disposed opposite to each other; the first hardening layer is disposed on the first surface; in the first direction of winding the flexible display cover, the first hardening layer includes a plurality of first sub-components spaced apart, the first sub-components being embedded in the body, and the side surface of the first sub-components facing away from the body being flush with the first surface. Through this method, the application sets the hardening layer as a plurality of spaced-apart first components, achieving a structured hardening layer in the first direction of the flexible display cover. This ensures the rollability and scratch resistance of the flexible display cover while reducing damage to the hardening layer during the winding process, improving user experience, and extending the service life of the flexible display cover. Furthermore, the fact that the side surface of the first sub-components facing away from the base layer is flush with the first surface ensures a smooth surface for the flexible display cover, reducing scratches and maintaining aesthetics. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0009] Figure 1 This is a cross-sectional schematic diagram of one embodiment of the flexible display cover plate of this application;

[0010] Figure 2 yes Figure 1 A schematic diagram of the structure of the middle body and the first hardened layer in one embodiment;

[0011] Figure 3 yes Figure 1 A cross-sectional schematic diagram of one embodiment when multiple first sub-components form a diffraction grating;

[0012] Figure 4 yes Figure 1 A schematic diagram of one embodiment when multiple first sub-components form a diffraction grating;

[0013] Figure 5 This is a cross-sectional schematic diagram of one embodiment of the flexible display cover plate of this application, which includes a first hardening layer and a second hardening layer;

[0014] Figure 6 This is a cross-sectional schematic diagram of another embodiment of the flexible display cover plate of this application, which includes a first hardening layer and a second hardening layer;

[0015] Figure 7 yes Figure 5A cross-sectional schematic diagram of one embodiment when the orthographic projection of the second sub-component on the first hardened layer coincides with the gap between the first sub-component;

[0016] Figure 8 yes Figure 5 A cross-sectional schematic diagram of the first and second sub-components forming a diffraction grating;

[0017] Figure 9 yes Figure 6 A cross-sectional schematic diagram of one embodiment where the protective film includes multiple protective sub-films. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0019] Please refer to Figures 1-2 , Figure 1 This is a cross-sectional schematic diagram of one embodiment of the flexible display cover plate of this application. Figure 2 for Figure 1 A schematic diagram of the structure of the body and the first hardening layer in one embodiment. The flexible display cover provided in this application may include: a body 0 and a first hardening layer 31.

[0020] The body 0 may include a first surface a1 and a second surface a2 disposed opposite to each other. In some embodiments, such as Figure 1 As shown, the body 0 may include a base layer 1 and a protective film 2 sequentially stacked in the thickness direction D3 of the body 0. The protective film 2 may have a first surface a1 and a third surface a3 disposed opposite to each other, and the surface of the base layer 1 away from the first surface a1 may have a second surface a2. Of course, in some embodiments, the body 0 may also include only the base layer 1 or the protective film 2.

[0021] Among them, the base layer 1 can be a single or multiple thin film structure, such as optically transparent glass, optical adhesive tape (OCA), liquid optical adhesive (OCR), polyimide (CPI) film, polyester (PET) film, etc., and can be the main structural layer of the flexible display cover.

[0022] The protective film 2 can be a single-layer film; alternatively, the protective film 2 can include multiple protective sub-films stacked sequentially on a third direction D3 perpendicular to the first surface a1. Optionally, the protective film 2 is an optically transparent film with a transmittance greater than 90% to reduce the impact of the introduction of the protective film 2 on light transmittance. Preferably, the material of the protective film 2 can be a common optically transparent organic polymer film, such as polyimide (CPI) film, polyester (PET) film, etc.

[0023] The first hardening layer 31 is disposed on the first surface a1 of the body 0 and can be used to protect the body 0 from scratches during the use of the flexible display cover. The material of the first hardening layer 31 may include oxides; preferably, the material of the first hardening layer 31 may include at least one of silicon oxide and tantalum compound. Silicon oxide and tantalum compound are commonly used materials in the production of flexible display devices, are readily available, and have high hardness and good wear resistance, providing excellent scratch resistance. In the first direction D1 of the flexible display cover winding, the first hardening layer 31 may include a plurality of first sub-components 310 spaced apart. The first sub-components 310 can be embedded in the body 0, and the surface of the first sub-component 310 facing away from the body 0 can be flush with the first surface a1. When the body 0 includes a base layer 1 and a protective film 2 stacked together, the first sub-component 310 can be embedded in the protective film 2, and the surface of the first sub-component 310 facing away from the protective film 2 can be flush with the first surface a1. The first hardening layer 31 can be formed by screen printing or exposure development. Multiple first sub-components 310 in the first hardened layer 31 are spaced apart along the first direction D1 of the flexible display cover. During the winding process, when a stress concentration occurs in a certain first sub-component 310 and a crack is generated, the stress will be released between the two adjacent first sub-components 310 because they are spaced apart, thus reducing the probability of the crack being transmitted to the next first sub-component 310.

[0024] To ensure good scratch resistance, the first hardened layer 31 generally has a high modulus. This makes it susceptible to tensile and bending stresses during winding, leading to damage and reduced scratch resistance. It may also damage other film layers, ultimately decreasing the user experience and lifespan of the flexible display cover. By configuring the first hardened layer 31 as multiple spaced-apart first sub-components 310, the first hardened layer 31 is structured along the first direction D1 of the flexible display cover. This ensures the flexible display cover's rollability and scratch resistance while reducing damage to the first hardened layer 31 during winding, improving user experience and extending the lifespan of the flexible display cover. Furthermore, the surface of the first sub-component 310 facing away from the main body 0 is flush with the first surface a1, ensuring a smooth outermost surface of the flexible display cover, reducing scratches, and maintaining aesthetics.

[0025] Optionally, the distance between adjacent first sub-components 310 can be 1-100 μm (e.g., 10 μm, 30 μm, 50 μm, 70 μm, 90 μm, etc.). Setting this distance can reduce diffraction problems caused by light passing through the body 0 and the first hardening layer 31, and can ensure that the area ratio of the first surface a1 of the body 0 exposed from the first hardening layer 31 is appropriate, thereby reducing the risk of the body 0 being scratched. Preferably, this distance can be larger than the size of a pixel in the flexible screen body that is bonded to the flexible display cover, thereby reducing overall light diffraction.

[0026] Furthermore, according to embodiments of the present invention, the specific thickness of the first sub-component 310 is not particularly limited, and those skilled in the art can design and adjust it accordingly based on the specific surface hardness requirements of the flexible display cover.

[0027] In some embodiments, such as Figure 2 As shown, each first sub-component 310 can extend in a second direction D2 perpendicular to the first direction D1. This allows the length direction of the first sub-component 310 to be perpendicular to the direction of maximum stress experienced by the flexible display cover plate during winding in the first direction D1, minimizing damage to the first sub-component 310 during winding and reducing resistance encountered by the flexible display cover plate during winding in the first direction D1, thus ensuring the strength of the first sub-component 310 in the first direction D1. Preferably, the first sub-component 310 can extend continuously in the second direction D2. The first direction D1 is the winding direction of the flexible display cover plate; allowing the first sub-component 310 to extend continuously in the second direction D2 ensures structural strength and rigidity in directions other than the first direction D1, especially in the second direction D2, making the flexible display cover plate less prone to deformation after multiple windings. Of course, in some embodiments, the first sub-component 310 can also be discontinuous in the second direction D2. The two ends of the first sub-component 310 in its extension direction can be flush with the edge of the body 0, thereby ensuring an effective protection area for the body 0.

[0028] In one embodiment, please refer to Figure 3-4 , Figure 3 yes Figure 1 A cross-sectional schematic diagram of one embodiment when multiple first sub-components form a diffraction grating; Figure 4 yes Figure 1This is a schematic diagram of one embodiment where multiple first sub-components form a diffraction grating. Multiple first sub-components 310 of the first hardened layer 31 can form a diffraction grating. The first sub-components 310 can act as diffractive optical elements, reducing diffraction. Preferably, when light is emitted along the third direction D3 pointing from the body 0 to the first sub-component 310, the brightness difference of the light at each location on the plane where the first surface a1 is located is less than or equal to 5%. This results in a smaller visually perceptible brightness difference caused by diffraction, ensuring a better user experience. Specifically, the method for forming the first hardened layer 31 in this embodiment can be as follows: A flexible display cover plate (which may or may not have a hardened layer; the hardened layer may be a structured first hardened layer 31 or a full-surface hardened layer) is bonded to a display unit. An optical diffraction image of the light-emitting side of the flexible display cover plate is obtained using optical simulation software. The first hardened layer 31 is then fabricated based on the shape of this optical diffraction image to form a diffraction grating. Next, an optical diffraction image of the flexible display cover plate with the diffraction grating is obtained using optical simulation software. The pattern of the first hardened layer 31 is corrected based on the brightness differences at various points in the current optical diffraction image until a pattern of the first hardened layer 31 with the expected brightness difference is obtained. Depending on the application scenario of the flexible display cover plate and the different film layer structures, device structures, etc., assembled with the flexible display cover plate, the diffraction grating pattern of the first hardened layer 31 can be different. For example, in one embodiment, such as… Figure 4 As shown, the first sub-component 310 of the first hardening layer 31 can form a dendritic structured pattern on the body 0. Of course, in other embodiments, the first sub-component 310 of the first hardening layer 31 can also be an arc, square, wave-shaped, sawtooth, or other pattern. This application does not limit the specific structure of the diffraction grating.

[0029] exist Figure 1 In this embodiment, the flexible display cover plate has only one hardening layer. In other embodiments, the flexible display cover plate may also have multiple hardening layers, and the multiple hardening layers are used to improve the strength of the first hardening layer 31. For example, as Figure 5-6 As shown, Figure 5 This is a cross-sectional schematic diagram of one embodiment of the flexible display cover plate of this application, which includes a first hardening layer and a second hardening layer; Figure 6 This is a cross-sectional schematic diagram of another embodiment of the flexible display cover plate of this application, which includes a first hardened layer and a second hardened layer. In addition to the first hardened layer 31 located on the first surface a1, the flexible display cover plate may also include a second hardened layer 32.

[0030] In some embodiments, the second hardening layer may be disposed on the second surface a2. In the first direction D1, the second hardening layer 32 may include a plurality of second sub-components 320 spaced apart. By simultaneously providing a high-hardness structured first hardening layer 31 and a structured second hardening layer 32, the neutral layer of the flexible display cover plate is adjusted during bending, causing the neutral layer to move towards the center of the body 0 where the film layer stress resistance is weak in the thickness direction of the body 0, reducing the risk of the first hardening layer 31 cracking during bending. In this embodiment, the stress consistency on the first surface a1 and the second surface a2 is higher than in embodiments with only the first hardening layer 31, resulting in higher winding strength for both the body 0 and the first hardening layer 31. Simultaneously, like the first hardening layer 31, the second hardening layer 32 also has a similar structured design, with the second sub-components 320 spaced apart, ensuring the winding strength of both the first hardening layer 31 and the second hardening layer 32. The first hardening layer 31 and the second hardening layer 32 are separately disposed on the first surface a1 and the second surface a2. When the flexible display cover plate is bent, stress is dispersed, further reducing the damage of the first hardening layer 31 and the second hardening layer 32. Furthermore, the second hardening layer 32 can compensate for the optical diffraction caused by the first hardening layer 31 to a certain extent. The first hardening layer 31 and the second hardening layer 32 interact to reduce optical diffraction.

[0031] Preferably, the second sub-component 320 is embedded in the body 0, and the surface of the second sub-component 320 away from the body 0 is flush with the second surface a2. This ensures the flatness of the plane containing the second surface a2, avoiding damage to other structural layers that are attached to the second surface a2 and affecting the overall strength of the flexible display cover. The two ends of the second sub-component 320 in its extension direction can be flush with the edge of the body 0, thereby ensuring an effective protection area for the first hardened layer 31. Each second sub-component 320 can extend in a second direction D2 perpendicular to the first direction D1. This way, the length direction of the second sub-component 320 can be perpendicular to the direction of the maximum stress experienced by the flexible display cover when it is wound in the first direction D1, minimizing damage to the second sub-component 320 during the winding of the flexible display cover and reducing the resistance experienced by the flexible display cover when it is wound in the first direction D1, thereby ensuring the strength of the second sub-component 320 in the first direction D1.

[0032] Preferably, the orthographic projection of the second sub-component 320 onto the first hardened layer 31 covers the gap between the first sub-components 310, preventing areas in the gap where the neutral layer is not adjusted from becoming stress concentration points, thus further reducing the risk of the first hardened layer 31 cracking. In one embodiment, please refer to... Figure 7 , Figure 7 for Figure 5A cross-sectional schematic diagram of one embodiment shows the second sub-component 320 projecting onto the first hardened layer and coinciding with the gap between the first sub-components 310. The second hardened layer 32 and the first hardened layer 31 are structurally complementary. When light passes sequentially through the second hardened layer 32 and the first hardened layer 31 along the third direction D3, it is equivalent to passing through a continuous, full-surface hardened layer, allowing the current light diffraction to reach the state of a full-surface hardened layer. This helps to improve the light diffraction problem caused by the structured first hardened layer 31. Of course, in other embodiments, please refer to... Figure 5 The orthographic projection of the second sub-component 320 onto the first hardened layer 31 can at least partially coincide with the first sub-component 310. Similarly, the patterns of the first hardened layer 31 and the second hardened layer 32 can be complementary, adjusting the neutral layer, improving the bending strength of the flexible display cover, and reducing the probability of misalignment and gap formation between the first sub-component 310 and the second sub-component 320 during bending, which is more conducive to reducing light diffraction during bending. In one embodiment, the body 0 includes a base layer 1 and a protective film 2 stacked together. The side of the protective film 2 facing away from the base layer 1 is a first surface a1, and the side of the base layer 1 facing away from the protective film 2 is a second surface a2. The first hardened layer can be embedded in the protective film 2, and the second hardened layer can be embedded in the base layer 1. The first hardened layer 31 can be used to protect the protective film 2, preventing it from being scratched during the use of the flexible display cover. Placing the second hardened layer 32 on the second surface a2 of the base layer 1 can reduce the impact of the second hardened layer 32 on the strength of the protective film 2.

[0033] In some embodiments, please refer to Figure 6 The body 0 includes a base layer 1 and a protective film 2 stacked together. The protective film 2 includes a third surface a3 facing the base layer 1. A second hardening layer 32 can be located on the third surface a3. In the first direction a1, the second hardening layer 32 includes a plurality of second sub-components 320 spaced apart. The distance between the first sub-component 310 and the second sub-component 320 is relatively close, which reduces the misalignment of the first sub-component 310 and the second sub-component 320 when the flexible display cover is bent. This further reduces the probability of light escaping from the gap formed after the misalignment of the first sub-component 310 and the second sub-component 320, and is more conducive to reducing light diffraction when the flexible display cover is bent.

[0034] Preferably, the second sub-component 320 is embedded in the protective film 2, and the side surface of the second sub-component 320 facing away from the base layer 1 is flush with the third surface a3, thereby ensuring the effective protection area of ​​the first hardened layer 31.

[0035] Preferably, the orthographic projection of the second sub-component 320 onto the first hardened layer 31 covers the gap between the first sub-components 310. This avoids areas in the gap that are not properly adjusted neutralized and thus become stress concentration points, further reducing the risk of the first hardened layer 31 cracking. In one embodiment, the orthographic projection of the second sub-component 320 onto the first hardened layer 31 coincides with the gap between the first sub-components 310. The second hardened layer 32 and the first hardened layer 31 are structurally complementary. When light passes through the second hardened layer 32 and the first hardened layer 31 sequentially along the third direction D3, it is equivalent to passing through a continuous, full-surface hardened layer, allowing the current light diffraction to reach the state of a full-surface hardened layer, which helps to improve the light diffraction problem caused by the structured first hardened layer 31. In another embodiment, the orthographic projection of the second sub-component 320 on the first hardened layer 31 at least partially coincides with that of the first sub-component 310. This also makes the patterns of the first hardened layer 31 and the second hardened layer 32 complementary, adjusts the position of the neutral layer, improves the bending strength of the flexible display cover, and reduces the probability of the first sub-component 310 and the second sub-component 320 misaligning and forming a gap when the flexible display cover is bent. This is more conducive to reducing light diffraction when the flexible display cover is bent.

[0036] In one embodiment, the widths of the first sub-component 310 and the second sub-component 320 are equal in the first direction D1, so that the first sub-component 310 and the second sub-component 320 can be manufactured using the same process conditions and equipment, simplifying the processing steps and improving production efficiency.

[0037] Of course, in other embodiments, the widths of the first sub-component 310 and the second sub-component 320 in the first direction D1 may not be equal, and can be adjusted according to the actual product structure requirements. For example, in one embodiment, such as Figure 8 As shown, Figure 8 yes Figure 5 The diagram shows a cross-sectional view of the first and second sub-components forming a diffraction grating. Multiple first sub-components 310 and 320 can cooperate to form the diffraction grating. Preferably, when light is emitted along the third direction D3 from the body 0 towards the first sub-component 310, the brightness difference of the light at each position on the plane containing the first surface a1 is less than or equal to 5%. This can further reduce optical diffraction and improve the uniformity of light emission from the plane containing the first surface a1 of the body 0. This application does not limit the specific structure of the diffraction grating.

[0038] In one embodiment, the first hardened layer 31 and the second hardened layer 32 can be made of the same material, which can also simplify the processing steps and improve production efficiency. Of course, in another embodiment, the first hardened layer 31 and the second hardened layer 32 can be made of different materials, which can be adjusted according to the actual product structure requirements.

[0039] When the body 0 includes a base layer 1 and a protective film 2 stacked upwards on a third side:

[0040] In one embodiment, the protective film 2 can be a single-layer film, and the first sub-component 310 and the second sub-component 320 can be respectively disposed on the first surface a1 and the third surface a3 of the single-layer film, such as... Figure 6 As shown. The design of a single-layer film is beneficial for the accuracy of the complementary positions of the first hardened layer 31 and the second hardened layer 32, and helps to reduce light diffraction.

[0041] In another embodiment, the protective film 2 may include multiple layers of protective sub-films stacked sequentially in a direction D3 perpendicular to the first surface a1. The thickness and number of layers of the protective sub-films are not limited, and the first hardened layer 31 may be located on the first surface a1 of the protective sub-film furthest from the base layer 1. For example, please refer to... Figure 9 , Figure 9 for Figure 6 The diagram shows a cross-sectional view of one embodiment where the protective film 2 includes multiple protective sub-films. The protective film 2 may include multiple protective sub-films 21, 22, and 23. A first hardened layer 31 may be located on the first surface a1 of the protective sub-film 21, and a second hardened layer 32 may be located on the third surface a3 of the protective sub-film 23. By distributing the first hardened layer 31 and the second hardened layer 32 in different protective sub-films, the stress concentration caused by the simultaneous presence of the first hardened layer 31 and the second hardened layer 32 in the protective sub-film 21 can be transferred to the protective sub-film 23, thereby reducing stress concentration in the protective sub-film 21 and improving the overall strength of the protective film 2. Of course, in another embodiment, the second hardened layer 32 may also be located on the second surface a2 of the base layer 1, which can reduce the impact of the second hardened layer 32 on the strength of the protective film 2.

[0042] This application also relates to a flexible display device, which may include the aforementioned flexible display cover. This flexible display device may include: smartphones, televisions, computer monitors, wearable devices, medical devices, etc. While ensuring the rollability and scratch resistance of the flexible display cover in the flexible display device, it reduces damage to the hardened layer during the rolling process, improves the user experience, and extends the service life of the flexible display device.

[0043] As described above, the present invention provides a flexible display cover and a flexible display device, wherein the flexible display cover includes a body and a first hardening layer. The body includes a first surface and a second surface disposed opposite to each other; the first hardening layer is disposed on the first surface; in a first direction of winding the flexible display cover, the first hardening layer includes a plurality of first sub-components disposed at intervals, the first sub-components being embedded in the body, and the surface of the first sub-components facing away from the body being flush with the first surface. Through the above method, this application, while ensuring the rollability and scratch resistance of the flexible display cover, reduces damage to the hardening layer during the winding process of the flexible display cover, improves the user experience, and extends the service life of the flexible display cover.

[0044] The above are merely embodiments of this application and do not limit the scope of this patent application. Any equivalent structural or procedural changes made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this application.

Claims

1. A flexible display cover, characterized in that, include: The body includes a first surface and a second surface that are positioned opposite to each other; A first hardening layer is disposed on the first surface; in the first direction of the flexible display cover being wound, the first hardening layer includes a plurality of first sub-components spaced apart, the first sub-components being embedded in the body, and the side surface of the first sub-components facing away from the body being flush with the first surface, the plurality of first sub-components forming a diffraction grating; A second hardening layer is disposed on the second surface, and in the first direction, the second hardening layer includes a plurality of second sub-components spaced apart; or, the body includes a base layer and a protective film stacked together, the protective film including a third surface facing the base layer, the second hardening layer being located on the third surface, and in the first direction, the second hardening layer including a plurality of second sub-components spaced apart. The plurality of first sub-components and the plurality of second sub-components cooperate to form a diffraction grating.

2. The flexible display cover plate according to claim 1, characterized in that, Each of the first sub-components extends in a second direction perpendicular to the first direction; The first sub-component has both ends flush with the edge of the body in the extending direction.

3. The flexible display cover plate according to claim 1, characterized in that, When the second hardened layer is disposed on the second surface, the second sub-component is embedded in the body, and the side surface of the second sub-component facing away from the body is flush with the second surface.

4. The flexible display cover plate according to claim 1, characterized in that, When the second hardening layer is disposed on the second surface, the orthographic projection of the second sub-component onto the first hardening layer covers the gap between the first sub-components.

5. The flexible display cover plate according to claim 4, characterized in that, The orthographic projection of the second sub-component onto the first hardened layer coincides with the gap between the first sub-components.

6. The flexible display cover plate according to claim 4, characterized in that, The orthographic projection of the second sub-component onto the first hardened layer at least partially coincides with that of the first sub-component.

7. The flexible display cover plate according to claim 1, characterized in that, When the second hardening layer is disposed on the second surface, the body includes a base layer and a protective film stacked together. The side of the protective film away from the base layer is the first surface, and the side of the base layer away from the protective film is the second surface. The first hardening layer is embedded in the protective film, and the second hardening layer is embedded in the base layer.

8. The flexible display cover plate according to claim 1, characterized in that, When the second hardened layer is located on the third surface, the orthographic projection of the second sub-component onto the first hardened layer covers the gap between the first sub-components.

9. The flexible display cover plate according to claim 8, characterized in that, The orthographic projection of the second sub-component onto the first hardened layer coincides with the gap between the first sub-components.

10. The flexible display cover plate according to claim 8, characterized in that, The orthographic projection of the second sub-component onto the first hardened layer at least partially coincides with that of the first sub-component.

11. The flexible display cover plate according to claim 1, characterized in that, When the second hardened layer is located on the third surface, the second sub-component is embedded in the protective film, and the side surface of the second sub-component closest to the base layer is flush with the third surface.

12. The flexible display cover plate according to claim 1, characterized in that, The first sub-component and the second sub-component have equal widths in the first direction; and / or, the first hardened layer and the second hardened layer are made of the same material.

13. The flexible display cover plate according to claim 1, characterized in that, The protective film is a single-layer film; Alternatively, the protective film may comprise multiple layers of protective sub-films stacked sequentially in a direction perpendicular to the first surface.

14. The flexible display cover plate according to claim 13, characterized in that, The protective film comprises multiple layers of protective sub-films stacked sequentially in a direction perpendicular to the first surface, and the first hardened layer is located on the first surface of the protective sub-film furthest from the base layer.

15. The flexible display cover plate according to claim 1, characterized in that, When light is emitted along the third direction from the body toward the first sub-component, the brightness difference of the light at each location on the plane where the first surface is located is less than or equal to 5%.

16. The flexible display cover plate according to claim 1, characterized in that, When light is emitted along the third direction from the body toward the first sub-component, the brightness difference of the light at each location on the plane where the first surface is located is less than or equal to 5%.

17. The flexible display cover plate according to claim 1, characterized in that, The distance between adjacent first sub-components is 1-100um.

18. The flexible display cover plate according to claim 1, characterized in that, The material of the first hardened layer includes oxides.

19. The flexible display cover plate according to claim 18, characterized in that, The material of the first hardened layer includes at least one of silicon oxide and tantalum compound.

20. A flexible display device, characterized in that, Includes the flexible display cover plate according to any one of claims 1-19.

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