Flexible display panel, preparation method thereof, and flexible display device

Abstract

The present invention discloses a flexible display panel, a preparation method thereof, and a flexible display device. The flexible display panel includes a flexible protective layer, on which a plurality of arc-shaped bosses arranged in sequence are formed; a flexible substrate, disposed on the flexible protective layer and the arc-shaped bosses to form an arc-shaped substrate on each arc-shaped boss, and a planar substrate is formed on the flexible protective layer between any two adjacent arc-shaped bosses; a pixel structure, which covers the upper surface of each arc-shaped substrate, and each pixel structure intersects with the planar substrate. By forming a plurality of arc-shaped bosses arranged in sequence on the flexible protective layer, disposing the flexible substrate on the arc-shaped bosses and the flexible protective layer, and disposing the pixel structure on the upper surface of the flexible substrate on the arc-shaped bosses, not only can the stretching performance of the flexible display panel be improved, but also it can be realized that when the flexible display panel is stretched / bent or not stretched / not bent, it can emit light with the maximum luminous efficiency.

Description

Technical Field

[0001] The present application relates to the field of display technologies, and particularly to a flexible display panel, a preparation method thereof, and a flexible display device. Background Art

[0002] With the development of the information society, people's demand for display devices is increasing day by day. Flexible display panels are becoming more and more popular with people due to their characteristics of being thin, bendable or even curlable, and having good mechanical properties. Currently, flexible display panels are more and more widely used in life. The means to achieve the bendability of a flexible display panel is usually to provide bosses (display areas) on a flexible substrate and bridges connecting every two adjacent bosses. The top surface of the boss is used to arrange pixel structures, and the bridge has connection lines (usually metal lines) for connecting adjacent pixel structures to transmit signals or currents. When the screen is bent, the relative positions of the bosses change through the deformation of the patterned bridges between the bosses.

[0003] Generally, pixel structures are arranged on the top surface of the bosses. In order to prevent the phenomenon of reduced brightness and resolution in the stretched or bent areas of the flexible display panel, the prior art is to also arrange corresponding pixel structures on the side surfaces of the bosses, so that when the bosses are stretched or bent, the pixel structures on the side surfaces of the bosses can be exposed or the exposed area increases, thereby compensating the display brightness and resolution of the stretched or bent areas to solve this technical problem.

[0004] However, in the prior art, since the pixel structures are respectively arranged on the top surface and the side surface of the boss, a rectangular or trapezoidal boss is formed. It is precisely the shape of the boss being rectangular or trapezoidal that causes the pixel structures on the side surface of the boss to be prone to pixel structure breakage when being stretched or bent. Summary of the Invention

[0005] Embodiments of the present application provide a flexible display panel, a preparation method thereof, and a flexible display device to solve the problem that the pixel structures on the side surface of the boss are prone to pixel structure breakage when being stretched or bent.

[0006] Embodiments of the present application provide a flexible display panel, including:

[0007] A flexible protective layer, on which a plurality of arc-shaped bosses arranged in sequence are formed;

[0008] A flexible substrate, disposed on the flexible protective layer and the arc-shaped bosses to form an arc-shaped substrate on each of the arc-shaped bosses, and a planar substrate on the flexible protective layer between any two adjacent arc-shaped bosses;

[0009] A pixel structure, the pixel structure covering the upper surface of each of the arc-shaped substrates, and each of the pixel structures intersecting the planar substrate.

[0010] Further, the flexible display panel further includes an anti-reflection film;

[0011] The anti-reflection film covers the upper surface of each of the pixel structures.

[0012] Further, the flexible display panel further includes a flexible film;

[0013] The flexible film covers the upper surface of each of the arc-shaped bosses.

[0014] Further, the flexible display panel further includes a thin film transistor;

[0015] The thin film transistor covers the upper surface of each of the arc-shaped substrates, and the thin film transistor is connected to the pixel structure to drive the pixel structure to emit light.

[0016] Further, the pixel structure includes an anode disposed on the upper surface of the arc-shaped boss and a light-emitting layer disposed on the upper surface of the anode.

[0017] Further, the flexible display panel further includes a packaging layer;

[0018] The packaging layer is disposed on the outermost side of the flexible display panel.

[0019] Further, the connection line between adjacent arc-shaped bosses is a curve.

[0020] Further, the shape of the arc-shaped boss includes a hemispherical shape.

[0021] An embodiment of the present application further provides a method for manufacturing a flexible display panel, the method for manufacturing the flexible display panel including:

[0022] Providing a flexible protective layer;

[0023] Forming a plurality of sequentially arranged arc-shaped bosses on the flexible protective layer;

[0024] Forming a flexible substrate on the arc-shaped bosses and the flexible protective layer; wherein, the flexible substrate forms an arc-shaped substrate on each of the arc-shaped bosses, and forms a planar substrate on the flexible protective layer between any two adjacent arc-shaped bosses;

[0025] Forming a pixel structure on the upper surface of each of the arc-shaped substrates.

[0026] An embodiment of the present application further provides a flexible display device, the flexible display device including the flexible display panel according to any one of the above.

[0027] The flexible display panel, its manufacturing method, and the flexible display device provided by the embodiments of the present application form a plurality of sequentially arranged arc-shaped protrusions on the flexible protective layer, set a flexible substrate on the arc-shaped protrusions and the flexible protective layer, and set a pixel structure on the upper surface of the flexible substrate on the arc-shaped protrusions. This can not only improve the stretching performance of the flexible display panel, but also enable the flexible display panel to emit light with the maximum luminous efficiency whether it is stretched / bent or not stretched / not bent. Description of the Drawings

[0028] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following described drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0029] Figure 1 It is a partial structural schematic diagram of an existing flexible display panel;

[0030] Figure 2 It is a partial structural schematic diagram of a flexible display panel provided by the embodiments of the present application;

[0031] Figure 3 It is a flowchart of a manufacturing method of a flexible display panel provided by the embodiments of the present application;

[0032] Among them, the reference numerals are as follows:

[0033] 10. Protective layer; 11. Protrusion;

[0034] 20. Main pixel structure;

[0035] 30. Sub-pixel structure;

[0036] 100. Flexible display panel;

[0037] 110. Flexible protective layer; 111. Arc-shaped protrusion;

[0038] 120. Flexible substrate; 121. Arc-shaped substrate; 122. Planar substrate;

[0039] 130. Pixel structure; 131. Anode; 132. Light-emitting layer;

[0040] 140. Thin-film transistor;

[0041] 150. Encapsulation layer. Detailed Embodiments

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0043] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numerals and / or reference letters in different examples. Such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0044] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "longitudinal", "transverse", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined. In the present application, " / " means "or".

[0045] With the rapid development of OLED display panel technology, it has the characteristics of being bendable and having good flexibility and is widely used. Compared with the traditional TFT LCD technology, one of the major advantages of OLED is that it can be made into foldable, rollable or stretchable products.

[0046] For the existing flexible display panel, please refer to Figure 1 , Figure 1 which is a partial structural schematic diagram of the existing flexible display panel. As shown in Figure 1As shown, existing flexible display panels generally include a number of bosses 11 provided on a protective layer 10. Each boss 11 is usually rectangular or trapezoidal. Then, a main pixel structure 20 is provided on the top surface of the rectangular or trapezoidal boss 11, and the purpose of the flexible display panel to emit light is achieved through this main pixel structure 20.

[0047] When the bosses 11 of existing flexible display panels are stretched, the phenomena of reduced brightness and resolution often occur. Therefore, in order to prevent the phenomena of reduced brightness and resolution, existing flexible display panels mainly set corresponding pixel structures on the sides of the bosses 11 as well, so that when the bosses 11 are stretched or bent, the pixel structures on the sides of the bosses 11 can be exposed or the exposed area increases, thereby compensating the display brightness and resolution of the stretched or bent area to solve this technical problem.

[0048] Specifically, please continue to refer to Figure 1 , existing flexible display panels set a sub-pixel structure 30 on each side of each boss 11. Thus, when the flexible display panel is stretched or bent, the exposed area of the sub-pixel structure 30 on the side of the boss 11 in the stretched or bent area increases, thereby compensating the display brightness and resolution of the stretched or bent area, and further being able to avoid the phenomena of reduced brightness and resolution in the stretched or bent area.

[0049] However, in the actual application process, due to the shape of the bosses 11, the arrangement of the most sub-pixel structures 30 cannot be achieved within a limited space, and the maximum brightness display of the flexible display panel cannot be realized. Moreover, precisely due to the shape of the bosses 11, when the existing flexible display panel is stretched, the sub-pixel structures 30 on the sides of the bosses 11 are prone to being broken, thus affecting the normal operation of the flexible display panel.

[0050] Therefore, it is necessary to provide a flexible display panel that can provide greater display brightness and is not prone to the pixel structure being broken.

[0051] In the embodiments of the present invention, by forming a number of sequentially arranged arc-shaped bosses on a flexible protective layer, setting a flexible substrate on the arc-shaped bosses and the flexible protective layer, and setting a pixel structure on the upper surface of the flexible substrate on the arc-shaped bosses, not only can the stretching performance of the flexible display panel be improved, but also when the flexible display panel is stretched / bent or not stretched / not bent, it can emit light with the maximum luminous efficiency.

[0052] Next, the display panel in the embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0053] Please refer to Figure 2 , Figure 2It is a schematic diagram of a partial structure of a flexible display panel provided by an embodiment of the present application. As Figure 2 shown, an embodiment of the present invention provides a flexible display panel 100, including a flexible protection layer 110, a flexible substrate 120, and a pixel structure 130.

[0054] Among them, a plurality of arc-shaped bosses 111 arranged in sequence are formed on the flexible protection layer 110.

[0055] The flexible substrate 120 is disposed on the flexible protection layer 110 and the arc-shaped bosses 111 to form an arc-shaped substrate 121 on each of the arc-shaped bosses 111, and a planar substrate 122 is formed on the flexible protection layer 110 between any two adjacent arc-shaped bosses 111.

[0056] The pixel structure 130 covers the upper surface of each of the arc-shaped substrates 121, and each of the pixel structures 130 intersects with the planar substrate 122.

[0057] In the embodiment of the present invention, by comparing Figure 1 and Figure 2 it can be known that the shape of the boss 11 of the flexible display panel in the prior art is rectangular or trapezoidal, so that when the flexible display panel is stretched, the sub-pixel structure 30 on the side of the rectangular or trapezoidal boss 11 is likely to be broken; while the arc-shaped boss 111 of the flexible display panel 100 provided by the embodiment of the present invention is arc-shaped, and only one pixel structure 130 needs to be covered and arranged on the arc-shaped boss 111, without arranging an additional sub-pixel structure on the side, so that when the flexible display panel 100 is stretched, the sub-pixel structure on the side of the arc-shaped boss 111 will not be broken, and also because the arc-shaped boss 111 provided by the embodiment of the present invention is arc-shaped, the flexible display panel 100 provided by the embodiment of the present invention can expose the most area through the arc-shaped pixel structure 130 covered and arranged on the arc-shaped boss 111 whether it is not stretched or stretched, thereby achieving the purpose of maximizing the display brightness of the flexible display panel 100.

[0058] That is to say, a flexible display panel 100 provided by an embodiment of the present invention, by forming a plurality of arc-shaped bosses 111 arranged in sequence on the flexible protection layer 110, arranging the flexible substrate 120 on the arc-shaped bosses 111 and the flexible protection layer 110, and arranging the pixel structure 130 on the upper surface of the flexible substrate 120 on the arc-shaped bosses 111, can not only improve the stretching performance of the flexible display panel 100, but also achieve the purpose of maximizing the display brightness by enabling the flexible display panel 100 to emit light with the maximum luminous efficiency whether it is stretched / bent or not stretched / not bent.

[0059] In this embodiment, the flexible display panel 100 provided by the embodiment of the present invention further includes an anti-reflective film (not shown in the figure).

[0060] Wherein, the anti-reflective film covers the upper surface of each of the pixel structures 130.

[0061] An anti-reflective coating (AR) is a surface optical coating that increases the light transmittance on the surface by reducing the reflected light. The anti-reflective film utilizes the principle of light interference to make the light reflected from the front surface and the back surface of the film interfere with each other.

[0062] Since the transmittance of the anti-reflective film can vary with the thickness of the anti-reflective film, therefore, in the embodiment of the present invention, by covering a layer of anti-reflective film on the upper surface of the pixel structure 130, when the flexible display panel 100 provided by the embodiment of the present invention is stretched, a higher transmittance can be achieved through the physical property of the thinning of the anti-reflective film, thereby achieving a higher luminous efficiency.

[0063] It should be noted that the anti-reflective film is not limited to covering the upper surface of the pixel structure 130, and can also cover the upper surface of any one or more layers or each layer of the material structure in the flexible display panel 100, and will not be listed one by one here.

[0064] In some embodiments, the flexible display panel 100 provided by the embodiment of the present invention further includes a flexible film (not shown in the figure).

[0065] The flexible film covers the upper surface of each of the arc-shaped bosses 111.

[0066] In this embodiment, in order to prevent the pixel structure 130 and other structures provided in this embodiment from being broken when the flexible display panel 100 provided in this embodiment is stretched, the embodiment of the present invention covers a layer of flexible film on the upper surface of the arc-shaped boss 111, thereby improving the stretching performance of the pixel structure 130 and other structures, preventing the phenomenon of being broken, and further improving the overall stretching performance of the flexible display panel 100 provided in this embodiment.

[0067] It should be noted that the flexible film is not limited to covering the upper surface of the arc-shaped boss 111, and can also cover the upper surface of any one or more layers or each layer of the material structure in the flexible display panel 100, and will not be listed one by one here.

[0068] In some other embodiments, please continue to refer to Figure 2 , the flexible display panel 100 provided by the embodiment of the present invention further includes a thin-film transistor 140.

[0069] Among them, the thin film transistor 140 covers the upper surface of each of the arc-shaped substrates 121, and the thin film transistor 140 is connected to the pixel structure 130 to drive the pixel structure 130 to emit light.

[0070] It should be noted that the number of thin film transistors is not limited to one, but can also be multiple. For example, when the flexible display panel 100 provided in this embodiment is an organic light-emitting diode display panel, the thin film transistor 140 can adopt a structure such as 2T1C, that is, it includes multiple thin film transistors.

[0071] In some embodiments, the pixel structure 130 provided in the embodiment of the present invention includes an anode 131 disposed on the upper surface of the arc-shaped boss 111, and a light-emitting layer 132 disposed on the upper surface of the anode 131.

[0072] In this embodiment, by injecting holes into the anode 131 to combine with electrons transmitted from the cathode layer in the light-emitting layer, the organic material in the light-emitting layer 132 can be excited to emit light, realizing the light emission of the flexible display panel 100 provided in this embodiment.

[0073] In some other embodiments, please continue to refer to Figure 2 , the flexible display panel 100 provided in the embodiment of the present invention further includes a packaging layer 150.

[0074] Among them, the packaging layer 150 is disposed on the outermost side of the flexible display panel 100.

[0075] Specifically, the packaging layer 150 covers the upper surface of the light-emitting layer 132. By covering a packaging layer 150 on the upper surface of the light-emitting layer 132, the pixel structure 130 can be protected from being eroded by water and oxygen, thereby improving the safety factor of the flexible display panel 100 provided in the embodiment of the present invention.

[0076] As an optional embodiment, the connecting line (not shown in the figure) between adjacent arc-shaped bosses 111 is a curve.

[0077] In this embodiment, each arc-shaped boss 111 is connected to adjacent other arc-shaped bosses 111 via a connecting line (not shown in the figure) between the bosses.

[0078] Specifically, by setting the connecting line between adjacent arc-shaped bosses 111 as a curve, the connecting line between the bosses can deform and is not easily broken during the stretching process of the flexible display panel 100, avoiding the situation that the connecting line with a straight structure is not easily deformed and is easily broken during the stretching process of the flexible display panel, and further improving the stretching performance of the flexible display substrate 100 provided in the embodiment of the present invention.

[0079] It should be noted that the material of the connecting line between the bosses in the embodiments of the present invention is a Ti-Al-Ti laminated composite material. By using high-temperature metal Ti as a toughening element and taking advantage of the good deformation ability of the Ti layer, the formation of crack tips can be prevented, so that the Ti-Al-Ti laminated composite material has good damage tolerance performance, with both high strength and good toughness and plasticity.

[0080] As another optional embodiment, the shape of the arc-shaped boss 111 includes a hemispherical shape.

[0081] It should be noted that the arc-shaped bosses 111 of the flexible display panel 100 provided in the embodiments of the present invention are not limited to hemispherical shapes, but can also be shapes with other curvatures, as long as the edges of the arc-shaped bosses 111 are smooth curves.

[0082] In summary, the present invention discloses a flexible display panel and a flexible display device. The flexible display panel includes a flexible protective layer on which a plurality of arc-shaped bosses are formed in sequence; a flexible substrate disposed on the flexible protective layer and the arc-shaped bosses to form an arc-shaped substrate on each arc-shaped boss and a planar substrate on the flexible protective layer between any two adjacent arc-shaped bosses; and a pixel structure covering the upper surfaces of the arc-shaped substrates, and each pixel structure intersects with the planar substrate. By adopting the embodiments of the present invention, by forming a plurality of arc-shaped bosses in sequence on the flexible protective layer, disposing a flexible substrate on the arc-shaped bosses and the flexible protective layer, and disposing a pixel structure on the upper surface of the flexible substrate on the arc-shaped bosses, not only can the stretching performance of the flexible display panel be improved, but also it can be realized that when the flexible display panel is stretched / bent or not stretched / not bent, it can emit light with the maximum luminous efficiency.

[0083] Please refer to Figure 3 , Figure 3 which is a flowchart of a method for manufacturing a flexible display panel provided in an embodiment of the present application. As Figure 3 shown, the manufacturing method provided in the embodiments of the present invention includes steps 101 to 104, and the specific process steps are as follows:

[0084] Step 101: Provide a flexible protective layer.

[0085] Step 102: Form a plurality of arc-shaped bosses in sequence on the flexible protective layer.

[0086] In this embodiment, step 103 further includes: covering a flexible film on the upper surface of the arc-shaped boss.

[0087] To prevent the pixel structure and other structures provided in this embodiment from being broken when the flexible display panel provided in this embodiment is stretched, in the embodiment of the present invention, a flexible film is covered on the upper surface of the arc-shaped convex platform, thereby improving the stretching performance of the pixel structure and other structures, preventing the phenomenon of being broken, and further improving the overall stretching performance of the flexible display panel provided in this embodiment.

[0088] Step 103, form a flexible substrate on the arc-shaped convex platform and the flexible protective layer; wherein, the flexible substrate forms an arc-shaped substrate on each arc-shaped convex platform, and forms a planar substrate on the flexible protective layer between any two adjacent arc-shaped convex platforms.

[0089] In this embodiment, step 103 further includes: covering a thin film transistor on the upper surface of each arc-shaped substrate.

[0090] Wherein, the thin film transistor is connected to the pixel structure to drive the pixel structure to emit light.

[0091] It should be noted that the number of thin film transistors is not limited to one, but can also be multiple. For example, when the flexible display panel 100 provided in this embodiment is an organic light emitting diode display panel, the thin film transistor 140 can adopt a structure such as 2T1C, that is, it includes multiple thin film transistors.

[0092] Step 104, form a pixel structure on the upper surface of each arc-shaped substrate.

[0093] In this embodiment, step 104 further includes: forming an anti-reflection film on the upper surface of the pixel structure.

[0094] By covering an anti-reflection film on the upper surface of the pixel structure, when the flexible display panel provided in the embodiment of the present invention is stretched, higher transmittance can be achieved through the physical property of the anti-reflection film becoming thinner, thereby achieving higher luminous efficiency.

[0095] Optionally, the method for manufacturing a flexible display panel provided in the embodiment of the present invention further includes: forming a packaging layer on the outermost side of the flexible display panel.

[0096] Specifically, the packaging layer covers the upper surface of the light-emitting layer. By covering a packaging layer on the upper surface of the light-emitting layer, the pixel structure can be protected, preventing water and oxygen from eroding the pixel structure, thereby improving the safety factor of the flexible display panel provided in the embodiment of the present invention.

[0097] It should be noted that the connection line between adjacent arc-shaped convex platforms is a curve. In this embodiment, each arc-shaped convex platform is connected to adjacent other arc-shaped convex platforms via the connection line between the convex platforms.

[0098] Specifically, by setting the connecting line between adjacent arc-shaped bosses as a curve, during the stretching process of the flexible display panel, the connecting line between the bosses can deform and is not easily broken, avoiding the situation that the connecting line with a straight structure is not easily deformed and is easily broken during the stretching process of the flexible display panel, and further improving the stretching performance of the flexible display substrate provided by the embodiment of the present invention.

[0099] Preferably, the shape of the arc-shaped boss includes a hemispherical shape.

[0100] It should be noted that the arc-shaped bosses of the flexible display panel provided by the embodiment of the present invention are not limited to a hemispherical shape, and may also be shapes with other radian values, as long as the edges of the arc-shaped bosses are smooth curves.

[0101] Continuing from the above, in the embodiment of the present invention, by forming a plurality of sequentially arranged arc-shaped bosses on the flexible protective layer, setting a flexible substrate on the arc-shaped bosses and the flexible protective layer, and setting a pixel structure on the upper surface of the flexible substrate on the arc-shaped bosses, not only can the stretching performance of the flexible display panel be improved, but also it can be realized that when the flexible display panel is stretched / bent or not stretched / not bent, it can emit light with the maximum luminous efficiency.

[0102] In addition, the embodiment of the present application also provides a flexible display device, which includes the flexible display panel in any of the above embodiments, or a flexible display panel prepared by the preparation method of the flexible display panel in any of the above embodiments. For specific details, please refer to the description above and will not be repeated here.

[0103] In the above embodiments, the descriptions of the respective embodiments have their own emphases. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0104] The above has introduced in detail a flexible display panel, its preparation method, and a flexible display device provided by the embodiments of the present invention. Specific examples are used in this article to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the technical solution and its core idea of the present invention; those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A flexible display panel, characterized in that, it comprises: A flexible protective layer, on which a plurality of arc-shaped protrusions arranged in sequence are formed, and the shape of the arc-shaped protrusions includes a hemispherical shape; A flexible substrate, disposed on the flexible protective layer and the arc-shaped protrusions, so as to form an arc-shaped substrate on each of the arc-shaped protrusions, and a planar substrate is formed on the flexible protective layer between any two adjacent arc-shaped protrusions, and the arc-shaped substrate is connected to the planar substrate; A pixel structure, the pixel structure covers the upper surface of each of the arc-shaped substrates, and each of the pixel structures intersects with the planar substrate, and the pixel structure includes an anode disposed on the upper surface of the arc-shaped protrusion, and a light-emitting layer disposed on the upper surface of the anode, and the light-emitting layer is continuously arranged and is arc-shaped.

2. The flexible display panel according to claim 1, characterized in that, the flexible display panel further comprises an antireflection film; the antireflection film covers the upper surface of each of the pixel structures.

3. The flexible display panel according to claim 1, characterized in that, the flexible display panel further comprises a flexible film; the flexible film covers the upper surface of each of the arc-shaped protrusions.

4. The flexible display panel according to claim 1, characterized in that, the flexible display panel further comprises a thin-film transistor; the thin-film transistor covers the upper surface of each of the arc-shaped substrates, and the thin-film transistor is connected to the pixel structure to drive the pixel structure to emit light.

5. The flexible display panel according to claim 1, characterized in that, the flexible display panel further comprises a packaging layer; the packaging layer is disposed on the outermost side of the flexible display panel.

6. The flexible display panel according to any one of claims 1-5, characterized in that, the connecting line between adjacent arc-shaped protrusions is a curve.

7. A method for manufacturing a flexible display panel, characterized in that, it comprises: Providing a flexible protective layer; Forming a plurality of arc-shaped protrusions arranged in sequence on the flexible protective layer, and the shape of the arc-shaped protrusions includes a hemispherical shape; Forming a flexible substrate on the arc-shaped protrusions and the flexible protective layer; wherein, the flexible substrate forms an arc-shaped substrate on each of the arc-shaped protrusions, and a planar substrate is formed on the flexible protective layer between any two adjacent arc-shaped protrusions, and the arc-shaped substrate is connected to the planar substrate; Forming a pixel structure on the upper surface of each of the arc-shaped substrates, and each of the pixel structures intersects with the planar substrate, and the pixel structure includes an anode disposed on the upper surface of the arc-shaped protrusion, and a light-emitting layer disposed on the upper surface of the anode, and the light-emitting layer is continuously arranged and is arc-shaped.

8. A flexible display device, characterized in that, the flexible display device comprises the flexible display panel according to any one of claims 1 to 6.

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