Flexible display panel and display device

Abstract

The invention provides a flexible display panel and a display device.The flexible display panel comprises a first area bent in the first direction, the first area comprises at least one second area bent in the second direction, and the first direction intersects with the second direction; the flexible display panel comprises a supporting layer arranged on the side away from the light emitting direction of the flexible display panel, and the supporting layer is provided with a plurality of notches formed in the second area in the second direction.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a flexible display panel and a display device. Background Art

[0002] With the development of panel production technology for OLED display modules, the flexibility and plasticity of OLED panels are getting better and better. In the related art, there are slidable and rollable display devices that are bent in two directions. In the related art, in a straight sliding display device or a straight folding display device, in order to ensure sufficient support capacity for the display module, it is usually necessary to set a support plate on the back of the display module.

[0003] However, the inventors of the present application discovered that for a display module of a slidable device that bends in two directions, since the plasticity of the support plate material is low, the edge of the support plate in the sliding or bending area will be subjected to a certain degree of extrusion deformation, and the deformation will be simultaneously transmitted to the display panel, causing the display panel to be squeezed and then cause cracks. Summary of the invention

[0004] In view of this, the purpose of the present application is to provide a flexible display panel and a display device to solve or partially solve the above-mentioned problems.

[0005] Based on the above purpose, the present application provides a flexible display panel, the flexible display panel comprising a first area bent along a first direction, the first area comprising at least one second area bent along a second direction, the first direction intersecting with the second direction;

[0006] The flexible display panel includes a support layer arranged at a side away from the light emitting direction of the flexible display panel, and the support layer is provided with a plurality of notches opened along the second direction in the second area.

[0007] Optionally, the second area is located on a side of the first area away from the display area, and an extending direction of the notch is perpendicular to an edge of the second area away from the first area.

[0008] Optionally, the plurality of notches are arranged at equal intervals in the second area.

[0009] Optionally, the shape of the notch includes a trapezoid, and the height of the trapezoid is parallel to the extension direction of the notch.

[0010] Optionally, the shape of the notch includes a serpentine shape.

[0011] Optionally, adjacent serpentine notches are symmetrically arranged.

[0012] Optionally, adjacent serpentine notches have symmetrical recesses, and openings are arranged between the symmetrical recesses.

[0013] Optionally, the supporting layer includes a plurality of supporting portions corresponding to the plurality of notches.

[0014] Optionally, the support portion is in a trapezoidal shape, and a height of the trapezoid is parallel to an extending direction of the support portion.

[0015] Optionally, the shape and size of the support portion and the notch are the same; the size of the support portion and the notch is determined according to the etching process accuracy of the support layer and the minimum radius of the second region in a bent state; the number of the support portions and the notch is determined according to the minimum radius of the second region in a bent state and the size of the support portion and the notch.

[0016] Based on the same inventive concept, a second aspect of the present application provides a display device, comprising the display module described in any one of the first aspects above.

[0017] From the above description, it can be seen that the present application provides a flexible display panel and a display device, wherein the flexible display panel includes a first area bent along a first direction, the first area includes at least one second area bent along a second direction, and the first area intersects with the second area; wherein the first area includes the second area, and the first area intersects with the second area, so that the flexible display panel can slide along the first area and the second area when sliding and rolling, thereby ensuring smoother sliding of the flexible display panel. The flexible display panel includes a support layer disposed on the side away from the light emitting direction of the flexible display panel, and the support layer is provided with a plurality of notches opened along the second direction in the second area, so that the flexible display panel can be rolled up or unfolded as the plurality of notches of the support layer change, thereby avoiding the problem that the second area of ​​the support layer is squeezed and deformed when the display panel is sliding and rolling, resulting in cracks on the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present application or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 A schematic diagram of a sliding structure of a flexible display panel according to an embodiment of the present application.

[0020] Figure 2 A schematic diagram of an exemplary flexible display device in a rolled-up state is shown.

[0021] Figure 3 For the embodiment of this application Figure 1 Schematic diagram of the cross-section in direction a.

[0022] Figure 4 This is a schematic diagram of the structure of the support layer in a rolled-up state according to an embodiment of the present application.

[0023] Figure 5 This is a schematic diagram of a state in which the notch of the flexible display panel of an embodiment of the present application is in a trapezoidal shape.

[0024] Fig. 6A This is a schematic diagram of a flexible display panel in an embodiment of the present application in which the notch is in a serpentine state.

[0025] Figure 6B This is another schematic diagram of the flexible display panel in the embodiment of the present application having a notch in a serpentine state.

[0026] Figure 7 For the embodiment of this application Figure 1 Schematic side view viewed from direction b.

[0027] Figure 8 For the embodiment of this application Figure 1 Schematic side view viewed from direction a.

[0028] In the attached figure:

[0029] 1. First area; 11. Display area; 12. Second area; 100. Flexible display panel; 2. Support layer; 21. Notch; 22. Support portion; 23. Protrusion; 24. Opening; 3. Casing; 4. Rotating shaft. DETAILED DESCRIPTION

[0030] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0031] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be the usual meanings understood by people with ordinary skills in the field to which the present application belongs. The "first", "second" and similar words used in the embodiments of the present application do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0032] In the related art, in a straight-plate sliding display device or a straight-plate folding display device, in order to ensure sufficient support capacity for the display module, it is usually necessary to set a support layer on the back of the display module. The support layer can be an extremely thin plate. For example, the support layer can be a stainless steel (SUS) plate or other support plate (BKT). However, the inventors of the present application found that for a display module of a slidable device with a double bending area, since the material plasticity of the support layer is low, the edge of the support layer in the sliding area or the bending area will be subjected to a certain degree of extrusion deformation, and the deformation will be synchronously transmitted to the display panel, so that the display panel will show a cracked state, affecting the display effect.

[0033] In response to the above problems, the embodiment of the present application opens multiple grooves in the edge area of ​​the supporting layer to enable the flexible display panel to be rolled up or unfolded as the multiple grooves of the supporting layer change, thereby avoiding the problem of the second area of ​​the supporting layer being squeezed and deformed when the display panel is rolled up, resulting in cracks on the display panel.

[0034] Figure 1 A schematic diagram of a sliding structure of an exemplary flexible display panel 100 provided in the present application is shown.

[0035] like Figure 1 As shown, the present application provides a flexible display panel 100, one end of the flexible display panel 100 is a curling end, and the curling end realizes the rolling and unfolding operation of the flexible display panel 100 through a rotating shaft 4. The flexible display panel 100 includes a first area 1 bent along a first direction, wherein the first direction can be a rolling direction or an unfolding direction of the flexible display panel 100, Figure 1The exemplary first direction indicated in is the rolling direction. The first region 1 is a rollable region of the flexible display panel 100. The first region 1 includes at least one second region 12 bent along a second direction, wherein the first direction intersects the second direction. As an optional embodiment, the second direction is a direction perpendicular to the rolling direction or the unfolding direction of the flexible display panel 100.

[0036] It can be seen that the first area 1 includes the second area 12, and the first area 1 intersects with the second area 12, so that the flexible display panel 100 can slide along the first area 1 and the second area 12 at the same time when sliding, thereby realizing the sliding of the display panel 100 with a double bending structure.

[0037] Figure 2 A schematic diagram of an exemplary flexible display device in a rolled-up state is shown.

[0038] like Figure 2 As shown, the embodiment of the present application provides a flexible display device, the flexible display device includes a housing 3, a rotating shaft 4 (refer to Figure 1 ), and the flexible display panel 100 (reference Figure 1 ); the casing 3 is provided with an opening, the shaft 4 is arranged in the casing 3, the flexible display panel 100 can be wound around the shaft 4, and can be extended or retracted from the casing 3 through the opening.

[0039] The flexible display device provided in the embodiment of the present invention, by providing a housing 3, a shaft 4 and a flexible display panel 100, enables the flexible display panel 100 to be wound around the shaft 4 and stored in the housing, thereby facilitating the use of the display device and having good portability.

[0040] The display device in this embodiment can be: electronic paper, mobile phone, tablet computer, television, notebook computer, digital photo frame, navigator, or any other product or component with a display function.

[0041] Figure 3 Shown along Figure 1 Sectional view in direction a.

[0042] In some embodiments, Figure 1 and Figure 3As shown, the flexible display panel 100 further includes a display area 11, which can be located in the middle of the first area 1. The second area 12 can be located on a side of the first area 1 away from the display area 11. Exemplarily, two second areas 12 are provided, which are located at opposite edges of the first area 1 and away from the side of the display area 11, forming a double-bent flexible display panel 100, and the double-bent flexible display panel 100 can be rolled up and unfolded by the rotating shaft 4.

[0043] In some embodiments, Figure 1 and Figure 2 As shown, the flexible display panel 100 includes a support layer 2 arranged on a side away from the light emitting direction of the flexible display panel 100, so as to support the flexible display panel 100. The support layer 2 may be, for example, a titanium alloy plate, a carbon fiber plate, a stainless steel (SUS) plate, etc. The support layer 2 is attached to the light emitting direction side of the flexible display panel 100 through an adhesive layer. The adhesive layer may be an adhesive material with high temperature resistance, for example, a pressure sensitive adhesive PSA, a polyacrylate double-sided foam tape VHB, a transparent optical adhesive OCA, etc.

[0044] As an optional embodiment, the support layer 2 may be made of a stainless steel (SUS) plate, which has low density, high modulus, and high rigidity, thereby achieving a good supporting effect and making the module light. In addition, the stainless steel plate has good oxidation resistance, corrosion resistance, high temperature resistance, and acid and alkali resistance, thereby increasing the service life of the display module.

[0045] However, the inventors of the present application discovered that during the winding process of the double-bend flexible display module, due to the high rigidity and low plasticity of stainless steel, when the double-curved flexible display module is rolled up, the edge of the supporting layer 2 will be subjected to a certain degree of extrusion deformation, and the deformation will be synchronously transmitted to the flexible display panel 100, thereby causing the flexible display panel 100 to display a cracked state, affecting the display effect.

[0046] Figure 4 The structure diagram of the support layer 2 in the rolled-up state is shown. Figure 4 As shown, in some embodiments, when the edge area of ​​the support layer 2 is squeezed during the rolling process of the flexible display module, it will shrink, resulting in the squeeze deformation of the support layer 2. Therefore, the support layer 2 is provided with a plurality of notches 21 opened along the second direction in the second area 12. In this way, the notches 21 are used to increase the squeeze space of the edge area of ​​the support layer 2 to solve the problem that the support layer 2 is squeezed and deformed, and the deformation effect is transmitted to the flexible display panel 100, resulting in the flexible display panel 100 having cracks.

[0047] By setting the notch 21 in the second area 12 of the flexible display panel 100, the unfolded part of the flexible display panel 100 has a straight and stable structural support and a certain flatness; through this structure, on the one hand, the curling performance of the double-bent flexible display panel 100 can be guaranteed, and on the other hand, when the double-curved flexible display panel 100 is unfolded, stable support and surface flatness can be maintained.

[0048] Optionally, the plurality of support portions 22 may be integrally formed with the support layer 2. Optionally, the notches 21 may be formed in the bent second region 12 of the support layer 2 by an etching process, and the plurality of support portions 22 corresponding to the plurality of notches 21 may be formed at the same time.

[0049] In some embodiments, a plurality of support portions 22 are arranged at equal intervals in the second region 12 of the support layer 2, so that each support portion 22 corresponds to the notch 21. When the flexible display panel 100 is rolled up, the support portion 22 of the support layer 2 is squeezed and moves into the notch 21, thereby avoiding deformation of the end surface of the support layer 2, and solving the problem that the support layer 2 is squeezed and deformed, and the deformation effect is transmitted to the flexible display panel 100, resulting in a cracked state of the flexible display panel 100.

[0050] As an optional embodiment, in order to make the support layer 2 have a better rolling effect, the shape of the support portion 22 can be set to a trapezoid, and the height of the trapezoid is parallel to the extension direction of the support portion 22 (for example, the direction extending from the display area in the middle to the non-display areas on both sides), such as Figure 5 When the edge area of ​​the support layer 2 is squeezed during the rolling process of the flexible display module, the support portion 22 of the support layer 2 gathers inside the notch 21, and the sides of the adjacent trapezoidal support portions 22 gradually approach each other to avoid deformation of the end surface of the support layer 2, thereby avoiding the problem of cracks in the flexible display screen.

[0051] In some embodiments, Figure 4 As shown, the support portion 22 and the notch 21 have the same shape and size; thus, when the support layer 2 is squeezed, it can better shrink, thereby avoiding the problem of wrinkles in the display area 11 corresponding to the support layer 2 and affecting the display effect.

[0052] In some embodiments, Figure 4As shown, since the edge of the flexible display module is bent in the second direction to form the second area 12, that is, a flexible display module with a double bending area is formed, during the rolling process of the flexible display module, the rotating shaft 4 drives the flexible display module to roll up, and the edge area of ​​the supporting layer 2 thereof is rolled up into a circle. During the rolling process, pressure will be generated at the edge of the second area 12 away from the first area 1. Therefore, the extension direction of the notch 21 is set perpendicular to the edge of the second area 12 away from the first area 1. In this way, the problem of pressure squeezing and deforming the edge of the supporting layer 2 when the flexible display module is rolled up is avoided.

[0053] In some embodiments, Figure 4 As shown, the multiple notches 21 are arranged at equal intervals in the second area 12. In this way, when the flexible display module is rolled up, the rotating shaft 4 drives the flexible display module to roll up, and the edge area of ​​the supporting layer 2 will roll up into a circle. At this time, the edge of the supporting layer 2 will shrink inward. Therefore, the notches 21 are arranged at equal intervals, which helps the shrinkage of the edge of the supporting layer 2, thereby avoiding the problem of uneven shrinkage of the supporting edge and wrinkles caused by the different sizes of the notches 21, which may cause cracks in the flexible display module.

[0054] Figure 5 A schematic diagram showing a state in which the notch of the flexible display panel is in a trapezoidal shape is shown.

[0055] In some embodiments, Figure 5 As shown, the notch 21 is trapezoidal. Figure 5 As shown, the extending direction of the notch 21 is from the display area in the middle to the non-display areas on both sides, and the height of the trapezoid is parallel to the extending direction of the notch 21. In this way, when the edge area of ​​the support layer 2 is squeezed during the rolling process of the flexible display module, the edge of the support layer 2 gathers inside the notch 21, and the sides of adjacent trapezoids gradually approach each other to avoid deformation of the support layer 2, thereby avoiding the problem of cracks in the flexible display screen. Figure 5 As shown, in some embodiments, the bottom side of the trapezoidal notch 21 away from the display area 11 is the lower bottom and the bottom side close to the display area 11 is the upper bottom, that is, the length of the bottom side of the trapezoidal notch 21 away from the display area 11 is greater than the length of the bottom side close to the display area 11. In this way, when rolling up, since the opening of the notch 21 away from the display area is larger, rolling can be better achieved, the degree of extrusion is reduced, and wrinkles and stress caused by extrusion are reduced or avoided.

[0056] Optionally, the notch 21 is an isosceles trapezoid. With this structure, when the flexible display module is rolled up, when the support layer 2 is squeezed, the isosceles trapezoidal notch allows the support layer 2 to shrink symmetrically inward from both sides of the notch 21, thereby better relieving bending stress and improving wrinkles, thereby better realizing the curling of the flexible display module.

[0057] In some embodiments, Figure 5 As shown, the angle between the waist and the bottom edge of the trapezoidal notch 21 can be 75 to 90 degrees. In other words, the inclination of the waist of the trapezoid is relatively large. When the notch is manufactured by etching process, the notch shape can be better formed. Moreover, in the rolled-up state, the notch 21 can be better closed to avoid the formation of a large gap due to the notch 21, which leads to problems such as unstable support or easy entry of impurities.

[0058] It is understandable that Figure 5 As shown, the support portion 22 has a shape and size similar to the notch 21 , which will not be described in detail herein.

[0059] Fig. 6A The schematic diagram shows that the notch of the flexible display panel is in a serpentine state. In order to illustrate clearly in the figure, the solid part of the support layer 2 is filled with mesh cross-section lines, and the mesh cross-section lines have no special meaning.

[0060] In some embodiments, Fig. 6A As shown, in the process of rolling up the flexible display module, in order to prevent the adhesive of the adhesive layer (pressure-sensitive adhesive PSA or transparent optical adhesive OCA) between the flexible display panel 100 and the support layer 2 from being squeezed out, resulting in the thinning of the adhesive layer, and not utilizing the multiple rolling and unfolding operations of the flexible display module, the notch 21 is set to be serpentine, so that when the support layer 2 is squeezed, the serpentine notches 21 gather together, thereby reducing the problem of glue overflowing from the adhesive layer between the flexible display panel 100 and the support layer 2. Fig. 6A As shown, in some embodiments, the serpentine notch 21 may be a serpentine shape formed alternately in a repeating unit (single concave portion), so that stress can be uniformly relieved from both sides of the notch and the extrusion problem can be improved. As an optional embodiment, Fig. 6A As shown, the repeating unit is in a rectangular shape, so that the rectangular shape can be better formed when the serpentine notch 21 is made by etching. It is understandable that the repeating unit of the serpentine notch 21 can also be in other shapes, such as semicircle, semi-ellipse, arc, triangle, etc.

[0061] As an optional embodiment, adjacent serpentine notches 21 are symmetrically arranged. In this way, when the support layer 2 is squeezed and contracted, the symmetrically arranged serpentine notches 21 can gather the glue of the adhesive layer between the flexible display panel 100 and the support layer 2 to the greatest extent, thereby reducing the overflow of the glue and further facilitating the winding and unfolding operations of the flexible display module.

[0062] Figure 6B Another schematic diagram showing the notch of the flexible display panel is in a serpentine state. In order to illustrate clearly in the figure, the solid part of the support layer 2 is filled with mesh cross-section lines, and the mesh cross-section lines have no special meaning.

[0063] As another optional embodiment, Figure 6B As shown, adjacent serpentine notches 21 are provided with symmetrical recesses, and openings 24 are provided between the symmetrical recesses. When the support layer 2 is squeezed and shrunk, the symmetrical recesses of the symmetrically arranged serpentine notches 21 can gather the glue of the adhesive layer between the flexible display panel 100 and the support layer 2 in the recesses, thereby avoiding the overflow of the glue to a great extent, and being more conducive to the winding and unfolding operations of the flexible display module. In addition, since the openings 24 are arranged between the symmetrical recesses of the serpentine notches, the relatively large area between the symmetrical recesses can be broken by the openings 24, and then the openings 24 can be used to eliminate the bending stress and better reduce wrinkles.

[0064] In some embodiments, the spacing between the opening 24 and the serpentine notch 21 can match or be equal to the width of the serpentine notch 21 (the spacing between the two side walls of the notch 21). On the one hand, the notch 21 and the opening 24 can be made at the same time under the condition allowed by the etching process accuracy. On the other hand, the notch 21 and the opening 24 can be better utilized to eliminate the bending stress and reduce wrinkles. Optionally, the spacing between the opening 24 and the serpentine notch 21 can be along the first direction (for example, Figure 6B vertical direction) and / or a second direction (e.g., Figure 6B The spacing in the horizontal direction) can improve the bending stress and wrinkles in these two directions.

[0065] Figure 7 A front view of a schematic structural diagram of the flexible display panel 100 in a folded state is shown. Figure 8 A side view of a schematic structural diagram of the flexible display panel 100 in a folded state is shown.

[0066] In some embodiments, Figure 7 and Figure 8As shown, the sizes of the support portion 22 and the notch 21 are determined according to the etching process accuracy of the support layer 2 and the minimum radius of the second region 12 in the bent state; wherein, the minimum radius in the bent state includes the winding radius of the flexible display panel 100 and the minimum winding radius of the second region 12; the numbers of the support portion 22 and the notch 21 are determined according to the minimum radius of the second region 12 in the bent state and the sizes of the support portion 22 and the notch 21, so that the distribution of the numbers of the support portion 22 and the notch 21 is more uniform, and the flexible display module can be curled better, thereby avoiding the problem that the flexible display screen cracks during the curling process.

[0067] Specifically, by way of example, assume that the winding radius of the flexible display panel 100 is R, the minimum winding radius of the second region 12 (the bent region of the second region 12) is r, the bending depth of the display panel is h, and the bending width of the second region 12 is L. Then: R = r + h. Accordingly, it can be known that the winding arc length of the flexible display panel 100 is πR, and the winding arc length of the second region 12 is πr. Therefore, it can be known that when the support layer 2 is wound, the arc length of the second region 12 being extruded is: π(R - r) = πh. Therefore, according to the arc length of the second region 12 being extruded, and according to the minimum limit width x of the support portion 22 defined by the etching process and the minimum limit of the size of the notch 21 being y, further by way of example, it can be seen from the figure that the second region 12 can be divided equally by the number of n = πr / x, and thus the size of the notch 21 can be obtained as: π(R - r) / n = π(R - r) / (πr / x) = xh / r, where the condition of xh / r > y needs to be satisfied; if xh / r < y, etching needs to be performed according to the value of y.

[0068] The present application also provides a display device, including the flexible display module described in any one of the above.

[0069] It should be noted that the display device may be a product with an image display function. For example, it may be: a monitor, a television, a billboard, a digital photo frame, a laser printer with a display function, a telephone, a mobile phone, a personal digital assistant (PDA), a digital camera, a portable video camera, a viewfinder, a navigator, a vehicle, a large-area wall, a household appliance, an information query device (such as business query devices, monitors, etc. in departments such as e-government, banks, hospitals, and power).

[0070] In some embodiments, the display device may further include a driving circuit coupled to the display panel 3, and the driving circuit is configured to provide corresponding electrical signals to the display panel 3.

[0071] It should be noted that the above describes some embodiments of the present application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the above embodiments and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0072] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present application (including the claims) is limited to these examples. In line with the concept of the present application, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.

[0073] In addition, in order to simplify the description and discussion, and in order not to make the embodiments of the present application difficult to understand,

[0074] The drawings provided may or may not show known power / ground connections to integrated circuit (IC) chips and other components. In addition, the device may be shown in the form of a block diagram to avoid making the present application embodiment difficult to understand, and this also takes into account the fact that the details of the implementation methods of these block diagram devices are highly dependent on the platform to be implemented in the present application embodiment (that is, these details should be fully within the scope of understanding of those skilled in the art). In the case of elaborating specific details (e.g., circuits) to describe an exemplary embodiment of the application, it is obvious to those skilled in the art that the present application embodiment can be implemented without these specific details or when these specific details are changed. Therefore, these descriptions should be considered illustrative rather than restrictive.

[0075] Although the present application has been described in conjunction with specific embodiments of the present application, many replacements, modifications and variations of these embodiments will be apparent to those skilled in the art from the foregoing description. For example, other memory architectures (e.g., dynamic RAM (DRAM)) may use the embodiments discussed.

[0076] The embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the scope of protection of the present application.

Claims

1. A flexible display panel, characterized in that: The flexible display panel includes a first area bent along a first direction, the first area includes at least one second area bent along a second direction, and the first direction intersects with the second direction; The flexible display panel includes a support layer arranged at a side away from the light emitting direction of the flexible display panel, and the support layer is provided with a plurality of notches opened along the second direction in the second area.

2. The flexible display panel according to claim 1, characterized in that: The second area is located at a side of the first area away from the display area, and an extending direction of the notch is perpendicular to an edge of the second area away from the first area.

3. The flexible display panel according to claim 1, characterized in that: The plurality of notches are arranged at equal intervals in the second region.

4. The flexible display panel according to claim 1, characterized in that: The shape of the notch includes a trapezoid, and the height of the trapezoid is parallel to the extending direction of the notch.

5. The flexible display panel according to claim 1, characterized in that: The shape of the notch includes a serpentine shape.

6. The flexible display panel according to claim 5, characterized in that: Adjacent serpentine notches are symmetrically arranged.

7. The flexible display panel according to claim 6, characterized in that: Adjacent serpentine notches have symmetrical recesses, and openings are arranged between the symmetrical recesses.

8. The flexible display panel according to claim 1, characterized in that: The supporting layer includes a plurality of supporting portions corresponding to the plurality of notches.

9. The flexible display panel according to claim 8, characterized in that: The shape of the support portion includes a trapezoid, and the height of the trapezoid is parallel to the extending direction of the support portion.

10. The flexible display panel according to claim 9, characterized in that: The shape and size of the support portion and the notch are the same; the size of the support portion and the notch is determined according to the etching process accuracy of the support layer and the minimum radius of the second area in a bent state; the number of the support portions and the notch is determined according to the minimum radius of the second area in a bent state and the size of the support portion and the notch.

11. A display device, characterized in that: A flexible display panel comprising any one of claims 1-10.

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