Flexible display screen and intelligent terminal

Abstract

The utility model provides a flexible display screen and an intelligent terminal, the flexible display screen comprises a flexible screen body and a protective film, the flexible screen body comprises a first display area, a first bending area, a second display area, a second bending area and a third display area which are connected in sequence; the protective film comprises a base material layer, a compensation layer and a hardened layer, the base material layer covers the display side of the flexible screen body, the compensation layer covers part of the base material layer and at least corresponds to at least one of the first bending area and the second bending area, the hardening layer covers the compensation layer and the base material layer, and the side, away from the base material layer, of the hardening layer is parallel to the display side. According to the technical scheme, the compensation layer is arranged corresponding to the first bending area and / or the second bending area, so that the thickness of the corresponding hardened layer is reduced, the strain force of the hardened layer during bending is reduced, and the bearable bending radius of the hardened layer is reduced, so that the bending radius of the flexible display screen is reduced, and the thickness of the folded flexible display screen is reduced.

Description

Technical Field

[0001] This application relates to the field of electronic equipment technology, specifically to a flexible display screen and a smart terminal. Background Technology

[0002] Smart terminals with foldable screens include a hinge and a flexible display screen. The flexible display screen is mounted on the hinge, and the two folded parts of the flexible display screen are hinged together to facilitate flattening or folding the flexible display screen.

[0003] In the process of conceiving and implementing this application, the inventors discovered at least the following problems: In some solutions, when a smart terminal with a tri-fold screen is closed, the hardened layer on the surface of the flexible display screen has a large strain force when bent. Therefore, if the bending radius of the bending area is too small, the hardened layer is prone to breakage. In order to avoid the hardened layer from breaking, the bending radius of the bending area of ​​the flexible display screen is large, which leads to an increase in the thickness of the flexible display screen after folding, and ultimately an increase in the thickness of the smart terminal after folding.

[0004] The preceding description is intended to provide general background information and does not necessarily constitute prior art. Utility Model Content

[0005] To address the aforementioned technical problems, this application provides a flexible display screen and a smart terminal to solve the problem of the large thickness of a tri-fold flexible display screen after folding.

[0006] This application provides a flexible display screen, including:

[0007] The flexible screen includes a first display area, a first bending area, a second display area, a second bending area, and a third display area connected in sequence. The first display area and the second display area are bent relative to each other through the first bending area, and the second display area and the third display area are bent relative to each other through the second bending area.

[0008] The protective film includes a substrate layer, a compensation layer, and a hardening layer; the substrate layer covers the display side of the flexible screen, the compensation layer covers a portion of the substrate layer, and the compensation layer corresponds to at least one of the first bending area and the second bending area; the hardening layer covers the compensation layer and the substrate layer, and the side of the hardening layer away from the substrate layer is parallel to the display side; the elastic modulus of both the substrate layer and the compensation layer is less than the elastic modulus of the hardening layer.

[0009] Optionally, the first display area and the second display area are folded outward relative to each other through the first bending area, and the second display area and the third display area are folded inward relative to each other through the second bending area.

[0010] Optionally, the compensation layer includes a first compensation segment and a second compensation segment, wherein the first compensation segment corresponds to the first bending zone, and the second compensation segment corresponds to the second bending zone.

[0011] Optionally, the thickness of the second compensation segment is greater than the thickness of the first compensation segment.

[0012] Optionally, the length of the first compensation segment is greater than the length of the first bending area, and both ends of the first compensation segment extend to correspond to the first display area and the second display area, respectively; and / or,

[0013] The length of the second compensation segment is greater than the length of the second bending area, and the two ends of the length direction of the second compensation segment extend to correspond to the second display area and the third display area, respectively.

[0014] Optionally, the compensation layer includes a first compensation layer, one end of which extends along the length direction to correspond to the end of the third display area away from the second bending area, and the other end of which extends along the length direction to correspond to the first display area, and the first compensation layer corresponds to a portion of the first display area.

[0015] Optionally, the compensation layer may further include a second compensation layer, which covers a portion of the first compensation layer, and the second compensation layer corresponds to the second bending area.

[0016] Optionally, the length of the second compensation layer is greater than the length of the second bending area, and the two ends of the length direction of the second compensation layer extend to correspond to the second display area and the third display area, respectively. The second compensation layer corresponds to a portion of the second display area and a portion of the third display area.

[0017] Optionally, the compensation layer and the substrate layer are made of the same material.

[0018] Optionally, the compensation layer and the substrate layer are integrally formed.

[0019] This application also provides a smart terminal, including any of the above-mentioned flexible displays.

[0020] The flexible display screen provided in this application includes a flexible screen body and a protective film. The flexible screen body includes a first display area, a first bending area, a second display area, a second bending area, and a third display area connected in sequence. The first display area and the second display area are bent relative to each other through the first bending area, and the second display area and the third display area are bent relative to each other through the second bending area. The protective film includes a substrate layer, a compensation layer, and a hardening layer. The substrate layer covers the display side of the flexible screen body, the compensation layer covers a portion of the substrate layer, and the compensation layer corresponds to at least one of the first bending area and the second bending area. The hardening layer covers the compensation layer and the substrate layer, and the side of the hardening layer away from the substrate layer is parallel to the display side. The elastic modulus of both the substrate layer and the compensation layer is less than the elastic modulus of the hardening layer. By adding a compensation layer to the protective film of the flexible display screen, the compensation layer is located between the substrate layer and the hardening layer. The compensation layer corresponds to at least one of the first bending area and the second bending area. Since the thickness of the hardening layer and the compensation layer as a whole is equal at all positions, the thickness of the hardening layer corresponding to the compensation layer is reduced, thereby reducing the strain force of the hardening layer when bending and reducing the bending radius that the hardening layer can withstand. This, in turn, reduces the bending radius of the folding area of ​​the flexible display screen (at least one of the first bending area and the second bending area), thereby reducing the thickness of the flexible display screen after folding. Ultimately, this reduces the thickness of the smart terminal after folding, improving the portability of the smart terminal. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the smart terminal provided in this application embodiment when the flexible display screen is in a folded state;

[0023] Figure 2 This is a schematic diagram of the flexible display screen provided in this application when it is in the unfolded state. Figure 1 ;

[0024] Figure 3 This is a schematic diagram of the flexible display screen provided in this application when it is in the unfolded state. Figure 2 ;

[0025] Figure 4 This is a schematic diagram of the flexible display screen provided in this application when it is in the unfolded state. Figure 3 ;

[0026] Figure 5This is a schematic diagram of the flexible display screen provided in this application when it is in the unfolded state. Figure 4 ;

[0027] Figure 6 This is a schematic diagram of the flexible display screen provided in this application when it is in the unfolded state. Figure 5 ;

[0028] Figure 7 This is a schematic diagram of the flexible display screen provided in this application when it is in the unfolded state. Figure 6 ;

[0029] Figure 8 This is a schematic diagram of the hardware structure of a mobile terminal that implements the various embodiments of this application.

[0030] Figure label:

[0031] 100 - Flexible screen body;

[0032] 110 - First display area; 120 - First bend area;

[0033] 130 - Second display area; 140 - Second bending area;

[0034] 150 - Third display area; 101 - Display side;

[0035] 200-protective film;

[0036] 210 - Substrate layer;

[0037] 220 - Compensation layer;

[0038] 221 - First compensation stage; 222 - Second compensation stage;

[0039] 223 - First compensation layer; 224 - Second compensation layer;

[0040] 230 - Hardened layer;

[0041] 300 - Mobile Terminal;

[0042] 301 - Radio Frequency Unit; 302 - WiFi Module;

[0043] 303 - Audio output unit; 304 - A / V input unit;

[0044] 3041 - Graphics Processor; 3042 - Microphone;

[0045] 305 - Sensor; 306 - Display unit;

[0046] 3061 - Display panel; 307 - User input unit;

[0047] 3071 - Touch panel; 3072 - Other input devices;

[0048] 308 - Interface unit; 309 - Memory;

[0049] 310 - Processor; 311 - Power supply.

[0050] The realization of the objectives, functional features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. The accompanying drawings have illustrated specific embodiments of this application, which will be described in more detail below. These drawings and textual descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this application to those skilled in the art through reference to specific embodiments. Detailed Implementation

[0051] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0052] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Optionally, components, features, and elements with the same names in different embodiments of this application may have the same meaning or different meanings, the specific meaning of which needs to be determined by its interpretation in that specific embodiment or further in conjunction with the context of that specific embodiment.

[0053] It should be understood that although the terms first, second, third, etc., may be used herein to describe various information, such information should not be limited to these terms. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this document, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if," as used herein, may be interpreted as "when," "when," or "in response to determination." Furthermore, as used herein, the singular forms "a," "an," and "the" are intended to also include the plural forms unless the context indicates otherwise. It should be further understood that the terms "comprising," "including," indicate the presence of the stated feature, step, operation, element, component, item, kind, and / or group, but do not exclude the presence, occurrence, or addition of one or at least one other feature, step, operation, element, component, item, kind, and / or group. The terms "or," "and / or," "including at least one of the following," etc., as used in this application, may be interpreted as inclusive, or mean any one or any combination thereof. For example, "including at least one of the following: A, B, C" means "any one of the following: A; B; C; A and B; A and C; B and C; A and B and C." Similarly, "A, B, or C" or "A, B, and / or C" means "any one of the following: A; B; C; A and B; A and C; B and C; A and B and C." Exceptions to this definition only occur when the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

[0054] Depending on the context, the words “if” or “suppose” as used here can be interpreted as “when” or “in response to determination” or “in response to detection.” Similarly, depending on the context, the phrases “if determination” or “if detection (of the stated condition or event)” can be interpreted as “when determination” or “in response to determination” or “when detection (of the stated condition or event)” or “in response to detection (of the stated condition or event).”

[0055] In the following description, the use of suffixes such as "module," "part," or "unit" to denote elements is solely for the purpose of illustrative purposes and has no specific meaning in itself. Therefore, "module," "part," or "unit" may be used interchangeably.

[0056] As described in the background section, flexible displays in related technologies suffer from a large thickness after folding. The inventors discovered that this problem arises because a flexible display comprises a flexible screen body and a protective film. The protective film covers the display side of the flexible screen body to protect it and reduce wear and tear. The outermost layer of the protective film is a hardened layer, which increases its surface hardness and scratch resistance. However, the hardened layer experiences significant strain during bending. If the bending radius is too small, the hardened layer is prone to breakage, resulting in a large bending radius in the folding area of ​​the flexible display, thus increasing the thickness of the folded display.

[0057] To address the aforementioned technical problems, this application provides a flexible display screen and a smart terminal. By adding a compensation layer to the protective film of the flexible display screen, the compensation layer is located between the substrate layer and the hardening layer. The compensation layer corresponds to at least one of the first bending area and the second bending area. Since the thickness of the hardening layer and the compensation layer as a whole is equal at all positions, the thickness of the hardening layer corresponding to the compensation layer is reduced, thereby reducing the strain force of the hardening layer during bending and reducing the bending radius that the hardening layer can withstand. This, in turn, reduces the bending radius of the folding area of ​​the flexible display screen (at least one of the first bending area and the second bending area), thereby reducing the thickness of the flexible display screen after folding. Ultimately, this reduces the thickness of the smart terminal after folding, improving the portability of the smart terminal.

[0058] The principles and features of the embodiments of this application are described below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for explaining this application and are not intended to limit the scope of this application.

[0059] It should be noted that, in this embodiment, thickness refers to the length along the direction perpendicular to the display side of the flexible display screen. Length refers to the length along the direction parallel to the display side and perpendicular to the bending line of the flexible display screen.

[0060] The flexible display screen provided in this application embodiment is flexible and can be bent under the action of external force, so that the flexible display screen can be unfolded and folded.

[0061] When the flexible display screen is in its unfolded state, it can provide a larger display area and operating area to improve performance.

[0062] When the flexible display is folded, its length decreases, making it easier to carry.

[0063] refer to Figure 1 and Figure 2The flexible display screen includes a flexible screen body 100. The flexible screen body 100 may have a display side 101, which faces the user. The flexible screen body 100 is used to display information, which may include text, images, videos, etc., allowing users to intuitively obtain data and content provided by the smart terminal.

[0064] When the flexible screen 100 is in the unfolded state, the display side 101 of the flexible screen 100 is roughly located in the same plane.

[0065] The flexible screen 100 may include a first display area 110, a first bending area 120, a second display area 130, a second bending area 140, and a third display area 150. The first display area 110, the first bending area 120, the second display area 130, the second bending area 140, and the third display area 150 may be connected sequentially.

[0066] The first display area 110, the first bending area 120, the second display area 130, the second bending area 140, and the third display area 150 can be integrally formed, reducing the seams and connection points of the flexible screen 100, improving the structural strength and durability of the flexible screen 100, and reducing the risk of damage caused by drops or impacts.

[0067] The first bending area 120 is located between the first display area 110 and the second display area 130. The first display area 110 and the second display area 130 can be bent inward or outward by bending the first bending area 120.

[0068] The second bending area 140 is located between the second display area 130 and the third display area 150. The second bending area 140 can be bent to make the second display area 130 and the third display area 150 fold inward or outward relative to each other.

[0069] refer to Figure 1 The first display area 110 and the second display area 130 can be folded outward relative to each other through the first bending area 120, and the second display area 130 and the third display area 150 can be folded inward relative to each other through the second bending area 140, so that the flexible display screen is folded in a "Z" shape. In this way, after the flexible display screen is folded, the first display area 110 is located on the outside of the smart terminal and can still display information normally.

[0070] refer to Figure 2 The flexible display screen may also include a protective film 200, which covers the display side 101 of the flexible screen body 100 to protect the flexible screen body 100 and reduce the wear and tear on the flexible screen body 100.

[0071] The protective film 200 can be adhered to the display side 101 of the flexible screen 100 to simplify the connection between the protective film 200 and the flexible screen 100, making it easier to place the protective film 200 on the display side 101 of the flexible screen 100.

[0072] The protective film 200 may include a substrate layer 210, which may be a PET (polyethylene terephthalate) layer, a CPI (colorless polyimide) layer, or other material layers. The substrate layer 210 covers the display side 101 of the flexible screen 100 to provide a physical barrier for the flexible screen 100, protecting it and reducing dust adhesion, scratches, and wear, thereby extending the service life of the flexible screen 100.

[0073] The substrate layer 210 can be approximately of equal thickness, meaning that the thickness of the substrate layer 210 at each location is approximately equal. This makes the substrate layer 210 easier to process and manufacture, and also ensures that the thickness of the substrate layer 210 covering each location of the flexible screen 100 is approximately equal, so that the protective performance of the substrate layer 210 on each location of the flexible screen 100 is basically consistent.

[0074] The protective film 200 may also include a compensation layer 220. The material of the compensation layer 220 may be the same as that of the substrate layer 210, or the elastic modulus of the compensation layer 220 may be close to that of the substrate layer 210, so that the compensation layer 220 and the substrate layer 210 are equally easy to deform.

[0075] The compensation layer 220 covers a portion of the substrate layer 210, and the compensation layer 220 corresponds to at least one of the first bending region 120 and the second bending region 140. That is, the compensation layer 220 corresponds to at least the first bending region 120; or, the compensation layer 220 corresponds to at least the second bending region 140; or, the compensation layer 220 corresponds to at least the first bending region 120 and the second bending region 140.

[0076] The protective film 200 may also include a hardening layer 230. The elastic modulus of the hardening layer 230 can be greater than that of the substrate layer 210 and the compensation layer 220, so that the hardening layer 230 has a certain degree of hardness, making the protective film 200 more wear-resistant and scratch-resistant. The material of the hardening layer 230 can be silicone, polyurethane, nanocomposite materials, fluorides, etc. The hardening layer 230 covers the compensation layer 220 and the substrate layer 210, and is in direct contact with the user. The hardening layer 230 has a certain degree of hardness, which improves the surface hardness of the protective film 200 without affecting the bending performance of the flexible screen 100, making the protective film 200 more wear-resistant and scratch-resistant, thereby extending the service life of the flexible display screen.

[0077] Since the compensation layer 220 covers part of the substrate layer 210, and the hardening layer 230 covers both the compensation layer 220 and the substrate layer 210, the compensation layer 220 is embedded between the substrate layer 210 and the hardening layer 230.

[0078] The side of the hardened layer 230 facing away from the substrate layer 210 and the display side 101 of the flexible screen 100 can be parallel. Since the substrate layer 210 is approximately of uniform thickness, the hardened layer 230 and the compensation layer 220 as a whole are also approximately of uniform thickness. Thus, the thickness of the hardened layer 230 corresponding to the compensation layer 220 is less than the thickness of the hardened layer 230 directly corresponding to the substrate layer 210.

[0079] In the implementation of the compensation layer 220 corresponding to the first bending area 120, the thickness of the hardening layer 230 corresponding to the first bending area 120 is reduced, which reduces the strain of the hardening layer 230 corresponding to the first bending area 120 when bending, and reduces the bending radius that this part of the hardening layer 230 can withstand. This reduces the bending radius of the first bending area 120, thereby reducing the thickness of the flexible display screen after folding, and ultimately reducing the thickness of the smart terminal after folding, thus improving the portability of the smart terminal.

[0080] In the implementation of the compensation layer 220 and the second bending area 140, the thickness of the hardening layer 230 corresponding to the second bending area 140 is reduced, which reduces the strain of the hardening layer 230 corresponding to the second bending area 140 when bending, and reduces the bending radius that this part of the hardening layer 230 can withstand. This reduces the bending radius of the second bending area 140, thereby reducing the thickness of the flexible display screen after folding, and ultimately reducing the thickness of the smart terminal after folding, thus improving the portability of the smart terminal.

[0081] In the implementation of the compensation layer 220 corresponding to the first bending region 120 and the second bending region 140, the thickness of the hardening layer 230 corresponding to the first bending region 120 is reduced, thereby reducing the strain force of the hardening layer 230 corresponding to the first bending region 120 during bending, and reducing the bending radius that this part of the hardening layer 230 can withstand. This reduces the bending radius of the first bending region 120. Similarly, the reduced thickness of the hardening layer 230 corresponding to the second bending region 140 reduces the strain force of the hardening layer 230 corresponding to the second bending region 140 during bending, and reduces the bending radius that this part of the hardening layer 230 can withstand. This reduces the bending radius of the second bending region 140. The reduction in the bending radii of both the first bending region 120 and the second bending region 140 makes the reduction in the thickness of the flexible display screen after folding more significant, ultimately reducing the thickness of the smart terminal after folding and improving the portability of the smart terminal.

[0082] The following embodiments are described with the compensation layer 220 corresponding to at least the first bending region 120 and the second bending region 140 as an example.

[0083] Example 1

[0084] refer to Figure 2 The compensation layer 220 may include a first compensation segment 221, which corresponds to the first bending area 120. The first compensation segment 221 can reduce the thickness of the hardening layer 230 corresponding to the first bending area 120, thereby reducing the strain of the hardening layer 230 when bending, and reducing the bending radius that this part of the hardening layer 230 can withstand. This can reduce the bending radius of the first bending area 120, reduce the thickness of the flexible display screen after folding, and ultimately reduce the thickness of the smart terminal after folding, thus improving the portability of the smart terminal.

[0085] refer to Figure 2 The compensation layer 220 may include a second compensation segment 222, which corresponds to the second bending area 140. The second compensation segment 222 can reduce the thickness of the hardening layer 230 corresponding to the second bending area 140, thereby reducing the strain of the hardening layer 230 when bending, and reducing the bending radius that this part of the hardening layer 230 can withstand. This reduces the bending radius of the second bending area 140, reduces the thickness of the flexible display screen after folding, and ultimately reduces the thickness of the smart terminal after folding, improving the portability of the smart terminal.

[0086] Optionally, in the implementation where the first display area 110 and the second display area 130 are folded outwards relative to each other through the first bending area 120, and the second display area 130 and the third display area 150 are folded inwards relative to each other through the second bending area 140, since the second display area 130 and the third display area 150 are folded inwards relative to each other through the second bending area 140, while the first display area 110 and the second display area 130 are folded outwards relative to each other through the first bending area 120, the bending radius of the second display area 130 is smaller than that of the first display area 110.

[0087] The thickness T3 of the second compensation segment 222 can be greater than the thickness T2 of the first compensation segment 221, so that the thickness of the hardened layer 230 corresponding to the second bending region 140 is less than the thickness of the hardened layer 230 corresponding to the first bending region 120. In this way, the bending radius that the hardened layer 230 corresponding to the second bending region 140 can withstand is less than the bending radius that the hardened layer 230 corresponding to the first bending region 120 can withstand, thereby further reducing the bending radius of the second bending region 140.

[0088] Optionally, the thickness T1 of the hardened layer 230 that does not correspond to the first display area 110 corresponding to the first compensation segment 221 and the second compensation segment 222 may be not less than 10 μm, so as to improve the wear resistance of the part of the hardened layer 230 that does not correspond to the first compensation segment 221 and the second compensation segment 222, thereby improving the durability of the flexible display screen corresponding to this part of the hardened layer 230.

[0089] Optionally, T1-T3 can be no greater than 5µm, which can ensure that the flexible display screen corresponding to the second compensation section 222 has sufficient durability, and can also reduce the strain force of the hardened layer 230 corresponding to the second compensation section 222 when bent, thereby reducing the bending radius of the hardened layer 230, which in turn can reduce the bending radius of the second bending area 140, thereby reducing the thickness of the flexible display screen after folding, and ultimately reducing the thickness of the smart terminal after folding, thus improving the portability of the smart terminal.

[0090] Optionally, the length of the first compensation segment 221 can be greater than the length of the first bending area 120. The two ends of the length direction X of the first compensation segment 221 can be extended to correspond to the first display area 110 and the second display area 130, respectively, so as to improve the tolerance between the first compensation segment 221 and the first bending area 120, so that the entire first bending area 120 corresponds to the first compensation segment 221, reducing the situation where the first compensation segment 221 does not cover part of the first bending area 120, thereby reducing the situation where the strain force is too large locally during bending due to the excessive thickness of the hardened layer 230 corresponding to part of the first bending area 120, which may cause fracture.

[0091] In the implementation where the first display area 110 and the second display area 130 are folded outwards relative to each other via the first bending area 120, and the second display area 130 and the third display area 150 are folded inwards relative to each other via the second bending area 140, the flexible display screen, after folding, still displays information normally with the display side 101 of the first display area 110 facing the user. Therefore, the flexible display screen corresponding to the first display area 110 is used more frequently than the second display area 130 and the third display area 150. The first compensation segment 221 corresponds to a portion of the first display area 110, increasing the thickness of the hardened layer 230 of the other portion of the first display area 110 that does not correspond to the first compensation segment 221, thereby improving the wear resistance of this portion of the hardened layer 230, and further improving the durability of the flexible display screen corresponding to this portion of the hardened layer 230.

[0092] Optionally, the length L1 of the first compensation segment 221 corresponding to the first display area 110 can be no less than 0.2 mm. This setting gives the flexible display screen provided in this application embodiment at least the following three beneficial effects:

[0093] First, it facilitates the manufacturing of the first compensation segment 221, thereby reducing the difficulty in processing and manufacturing the first compensation segment 221 due to the small length of L1;

[0094] Second, it can ensure the tolerance between the first compensation segment 221 and the first bending area 120, so that the first compensation segment 221 can correspond to the entire first bending area 120 during the manufacturing process, reducing the situation where the first compensation segment 221 cannot correspond to the entire first bending area 120 during the manufacturing process due to the small tolerance between the first compensation segment 221 and the first bending area 120.

[0095] Third, the length of the hardened layer 230 (hardened layer 230 with a thickness of T1) that does not correspond to the first display area 110 corresponding to the first compensation segment 221 is increased to the proportion of the length of the entire first display area 110. In other words, the thickness of the hardened layer 230 corresponding to most of the first display area 110 is T1, thereby improving the durability of the flexible display screen corresponding to the entire first display area 110.

[0096] Optionally, the length of the second compensation segment 222 can be greater than the length of the second bending area 140, and the two ends of the length direction X of the second compensation segment 222 can extend to correspond to the second display area 130 and the third display area 150, respectively, so as to improve the tolerance between the second compensation segment 222 and the second bending area 140, so that the entire second bending area 140 corresponds to the second compensation segment 222, reducing the situation where the second compensation segment 222 does not cover part of the second bending area 140, thereby reducing the situation where the strain force is too large locally during bending due to the excessive thickness of the hardened layer 230 corresponding to part of the second bending area 140, which may cause fracture.

[0097] Example 2

[0098] refer to Figure 3 Based on the above embodiment 1, in the implementation method where the compensation layer 220 and the substrate layer 210 are made of the same material, the substrate layer 210, the first compensation segment 221 and the second compensation segment 222 can be integrally formed.

[0099] For example, when manufacturing the protective film 200, a film layer can first be formed using the material of the substrate layer 210. The thickness of the film layer is greater than the total height of the substrate layer 210 and the first compensation segment 221, and not less than the total height of the substrate layer 210 and the second compensation segment 222. Then, the film layer is etched to form the overall shape of the substrate layer 210, the first compensation segment 221 and the second compensation segment 222 in the above embodiment. Finally, a hardening layer 230 is covered on the overall shape formed by the substrate layer 210, the first compensation segment 221 and the second compensation segment 222, and the protective film 200 is finally formed.

[0100] The substrate layer 210, the first compensation segment 221, and the second compensation segment 222 are integrally formed, which can improve the connection strength between the substrate layer 210 and the first compensation segment 221, and between the substrate layer 210 and the second compensation segment 222; and can simplify the manufacturing process of the protective film 200.

[0101] Example 3

[0102] refer to Figure 4 The compensation layer 220 may include a first compensation layer 223, which covers a portion of the substrate layer 210. The first compensation layer 223 corresponds at least to the first bending area 120 and the second bending area 140 to reduce the thickness T2 of the hardened layer 230 corresponding to the first bending area 120 and the second bending area 140. This reduces the strain force of the hardened layer 230 corresponding to the first bending area 120 and the second bending area 140 during bending, thereby reducing the bending radius that the hardened layer 230 can withstand. This reduces the bending radius of the first bending area 120 and the second bending area 140, thereby reducing the thickness of the flexible display screen after folding. Ultimately, this reduces the thickness of the smart terminal after folding, improving the portability of the smart terminal.

[0103] Optionally, one end of the first compensation layer 223 in the length direction X can extend to correspond to the end of the third display area 150 away from the second bending area 140, and the other end of the first compensation layer 223 in the length direction X can extend to correspond to the first display area 110. In this way, the first compensation layer 223 covers the third display area 150 from the first display area 110 along the length direction X of the flexible display screen, which facilitates the processing and manufacturing of the first compensation layer 223 on the substrate layer 210 and reduces the manufacturing difficulty of the first compensation layer 223.

[0104] Optionally, the first compensation layer 223 corresponds to a portion of the first display area 110, that is, the other end of the first compensation layer 223 in the length direction X extends to correspond to a portion of the first display area 110.

[0105] This configuration improves the tolerance between the first compensation layer 223 and the first bending area 120, ensuring that the entire first bending area 120 corresponds to the first compensation layer 223. This reduces the possibility that the first compensation layer 223 may not cover parts of the first bending area 120, thereby reducing the likelihood of breakage due to excessive local strain caused by the excessive thickness of the hardened layer 230 corresponding to parts of the first bending area 120 during bending.

[0106] On the other hand, in the implementation where the first display area 110 and the second display area 130 are folded outward relative to each other through the first bending area 120, and the second display area 130 and the third display area 150 are folded inward relative to each other through the second bending area 140, after the flexible display screen is folded, the display side 101 of the first display area 110 faces the user and can still display information normally. Therefore, the usage frequency of the flexible display screen corresponding to the first display area 110 is higher than that of the second display area 130 and the third display area 150. The first compensation layer 223 corresponds to a portion of the first display area 110, increasing the thickness T1 of the hardened layer 230 of the other portion of the first display area 110 that does not correspond to the first compensation layer 223, thereby improving the wear resistance of this portion of the hardened layer 230, and further improving the durability of the flexible display screen corresponding to this portion of the hardened layer 230 with a thickness of T1.

[0107] Optionally, the thickness T1 of the hardened layer 230 that does not correspond to the first display area 110 corresponding to the first compensation layer 223 can be not less than 10 μm to improve the wear resistance of this part of the hardened layer 230, thereby improving the durability of the flexible display screen corresponding to this part of the hardened layer 230 with a thickness of T1, and reducing the situation where the durability of the flexible display screen corresponding to the first display area 110 is low due to the thickness of T1 being too small.

[0108] Optionally, the length L1 of the first compensation layer 223 corresponding to the first display area 110 can be not less than 0.2 mm. This setting gives the flexible display screen provided in this application embodiment at least the following three beneficial effects:

[0109] First, it facilitates the manufacturing of the first compensation layer 223, thereby reducing the difficulty in processing and manufacturing the first compensation layer 223 due to the small length of L1;

[0110] Second, it can ensure the tolerance between the first compensation layer 223 and the first bending area 120, so that the first compensation layer 223 can correspond to the entire first bending area 120 during the manufacturing process, reducing the situation where the first compensation layer 223 cannot correspond to the entire first bending area 120 during the manufacturing process due to the small tolerance between the first compensation layer 223 and the first bending area 120.

[0111] Third, the length of the hardened layer 230 (hardened layer 230 with a thickness of T1) that does not correspond to the first display area 110 corresponding to the first compensation layer 223 is increased to the proportion of the length of the entire first display area 110. In other words, the thickness of the hardened layer 230 corresponding to most of the first display area 110 is T1, thereby improving the durability of the flexible display screen corresponding to the entire first display area 110.

[0112] Optionally, the thickness T2 of the first compensation layer 223 can be no less than 5 μm to reduce the thickness of the hardening layer 230 (thickness T3, T3 = T1 - T2) corresponding to the first compensation layer 223, so that the thickness of the hardening layer 230 with thickness T3 can be no more than 5 μm. This can make the flexible display screen corresponding to the first compensation layer 223 have sufficient durability, and can also reduce the strain force of the flexible display screen when bending, thereby reducing the bending radius of the hardening layer 230, reducing the thickness of the flexible display screen after folding, and ultimately reducing the thickness of the smart terminal after folding, thus improving the portability of the smart terminal.

[0113] Example 4

[0114] refer to Figure 5 Based on the above embodiment three, in the implementation method where the compensation layer 220 and the substrate layer 210 are made of the same material, the substrate layer 210 and the first compensation layer 223 can be integrally formed.

[0115] For example, when manufacturing the protective film 200, a film layer can first be formed using the material of the substrate layer 210. The thickness of the film layer can be equal to or greater than the total height of the substrate layer 210 and the first compensation layer 223. Then, the film layer is etched to form the overall shape formed by the substrate layer 210 and the first compensation layer 223 in the above embodiment 3. Finally, a hardening layer 230 is covered on the overall shape formed by the substrate layer 210 and the first compensation layer 223, and the protective film 200 is finally formed.

[0116] The substrate layer 210 and the first compensation layer 223 are integrally formed, which can improve the connection strength between the substrate layer 210 and the first compensation layer 223, and simplify the manufacturing process of the protective film 200.

[0117] Example 5

[0118] refer to Figure 6 Based on the above embodiment three, in the implementation of the first display area 110 and the second display area 130 being folded outwards relative to each other through the first bending area 120, and the second display area 130 and the third display area 150 being folded inwards relative to each other through the second bending area 140, since the second display area 130 and the third display area 150 are folded inwards relative to each other through the second bending area 140, while the first display area 110 and the second display area 130 are folded outwards relative to each other through the first bending area 120, the bending radius of the second display area 130 is smaller than that of the first display area 110.

[0119] The compensation layer 220 may further include a second compensation layer 224, which covers a portion of the first compensation layer 223 and corresponds to the second bending region 140. This increases the thickness of the compensation layer 220 corresponding to the second bending region 140, making the thickness of the hardening layer 230 corresponding to the second bending region 140 less than the thickness of the hardening layer 230 corresponding to the first bending region 120. As a result, the bending radius that the hardening layer 230 corresponding to the second bending region 140 can withstand is less than the bending radius that the hardening layer 230 corresponding to the first bending region 120 can withstand, thereby further reducing the bending radius of the second bending region 140.

[0120] Optionally, the length of the second compensation layer 224 can be greater than the length of the second bending region 140. One end of the length direction X of the second compensation layer 224 can extend to correspond to the second display area 130, and the second compensation layer 224 and a portion of the second display area 130 correspond to each other. This increases the tolerance between the second compensation layer 224 and the second bending region 140, so that the entire second bending region 140 corresponds to the second compensation layer 224. This reduces the situation where the second compensation layer 224 does not cover a portion of the second bending region 140, thereby reducing the possibility of breakage due to excessive local strain caused by the excessive thickness of the hardened layer 230 corresponding to a portion of the second bending region 140 during bending.

[0121] Optionally, the other end of the second compensation layer 224 in the length direction X can extend to correspond to the third display area 150, and the second compensation layer 224 and a portion of the third display area 150 correspond to each other, so as to increase the tolerance between the second compensation layer 224 and the second bending area 140, so that the entire second bending area 140 corresponds to the second compensation layer 224, reducing the situation where the second compensation layer 224 does not cover a portion of the second bending area 140, thereby reducing the situation where the strain force is locally too large and fracture occurs due to the excessive thickness of the hardened layer 230 corresponding to a portion of the second bending area 140 during bending.

[0122] Optionally, the thickness T1 of the hardened layer 230 corresponding to the first display area 110 not corresponding to the first compensation layer 223 can be not less than 15 μm, the thickness T2 of the first compensation layer 223 can be not less than 5 μm, the thickness T3 of the second compensation layer 224 can be not less than 5 μm, and the thickness T1-(T2+T3) of the hardened layer 230 corresponding to the second compensation layer 224 can be not greater than 5 μm. This can make the flexible display screen corresponding to the second compensation layer 224 have sufficient durability, and can also reduce the strain force of the flexible display screen when bending, so that the bending radius that the hardened layer 230 corresponding to the second bending area 140 can withstand is reduced, and the thickness of the flexible display screen after folding is reduced, ultimately reducing the thickness of the smart terminal after folding and improving the portability of the smart terminal.

[0123] Example 6

[0124] refer to Figure 7 Based on the above embodiment five, in the implementation method where the compensation layer 220 and the substrate layer 210 are made of the same material, the substrate layer 210, the first compensation layer 223 and the second compensation layer 224 can be integrally formed.

[0125] For example, when manufacturing the protective film 200, a film layer can first be formed using the material of the substrate layer 210. The thickness of the film layer can be equal to or greater than the total height of the substrate layer 210, the first compensation layer 223, and the second compensation layer 224. Then, the film layer is etched to form the overall shape of the substrate layer 210, the first compensation layer 223, and the second compensation layer 224 in the above embodiment 5. Finally, a hardening layer 230 is covered on the overall shape formed by the substrate layer 210, the first compensation layer 223, and the second compensation layer 224, and the protective film 200 is finally formed.

[0126] The substrate layer 210, the first compensation layer 223, and the second compensation layer 224 are integrally formed, which can improve the connection strength between the substrate layer 210 and the first compensation layer 223, as well as between the first compensation layer 223 and the second compensation layer 224; and can simplify the manufacturing process of the protective film 200.

[0127] This application also provides a smart terminal, including the flexible display screen in any of the above embodiments.

[0128] The smart terminal in this embodiment includes the flexible display screen from the preceding embodiments. The specific structure, working principle, and functions of the flexible display screen have been described in detail in the preceding embodiments and will not be repeated here.

[0129] Optionally, the smart terminal provided in this application embodiment can be implemented in various forms. For example, the smart terminal described in this application may include mobile terminals such as mobile phones, tablets, laptops, handheld computers, personal digital assistants (PDAs), portable media players (PMPs), navigation devices, wearable devices, smart bracelets, pedometers, etc., as well as fixed terminals such as digital TVs and desktop computers.

[0130] The following description will use a mobile terminal as an example. Those skilled in the art will understand that, apart from elements specifically designed for mobile purposes, the construction according to the embodiments of this application can also be applied to fixed-type terminals.

[0131] Please see Figure 8This is a schematic diagram of the hardware structure of a mobile terminal implementing various embodiments of this application. The mobile terminal 300 may include: an RF (Radio Frequency) unit 301, a WiFi module 302, an audio output unit 303, an A / V (Audio / Video) input unit 304, a sensor 305, a display unit 306, a user input unit 307, an interface unit 308, a memory 309, a processor 310, and a power supply 311, etc. Those skilled in the art will understand that... Figure 8 The mobile terminal structure shown does not constitute a limitation on the mobile terminal. The mobile terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0132] The following is combined Figure 8 A detailed introduction to each component of the mobile terminal 300:

[0133] The radio frequency unit 301 can be used for receiving and transmitting signals during information transmission or calls. Specifically, it receives downlink information from the base station and processes it with the processor 310; additionally, it transmits uplink data to the base station. Typically, the radio frequency unit 301 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, and a duplexer. Furthermore, the radio frequency unit 301 can also communicate wirelessly with networks and other devices. The aforementioned wireless communications may use any communication standard or protocol, including but not limited to GSM (Global System of Mobile communication), GPRS (General Packet Radio Service), CDMA2000 (Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), FDD-LTE (Frequency Division Duplexing-Long Term Evolution), TDD-LTE (Time Division Duplexing-Long Term Evolution), 5G, and 6G.

[0134] WiFi is a short-range wireless transmission technology. Mobile terminal 300, through WiFi module 302, can help users send and receive emails, browse web pages, and access streaming media, providing users with wireless broadband internet access. Although Figure 8 WiFi module 302 is shown, but it is understood that it is not a necessary component of mobile terminal 300 and can be omitted as needed without changing the nature of this application.

[0135] The audio output unit 303 can convert audio data received by the radio frequency unit 301 or the WiFi module 302 or stored in the memory 309 into audio signals and output them as sound when the mobile terminal 300 is in call signal receiving mode, call mode, recording mode, voice recognition mode, broadcast receiving mode, etc. Furthermore, the audio output unit 303 can also provide audio output related to specific functions performed by the mobile terminal 300 (e.g., call signal receiving sound, message receiving sound, etc.). The audio output unit 303 may include a speaker, a buzzer, etc.

[0136] The A / V input unit 304 is used to receive audio or video signals. The A / V input unit 304 may include a graphics processing unit (GPU) 3041 and a microphone 3042. The GPU 3041 processes image data of still images or videos acquired by an image capture device (such as a camera) in video capture mode or image capture mode. The processed image frames can be displayed on the display unit 306. The image frames processed by the GPU 3041 can be stored in the memory 309 (or other storage medium) or transmitted via the radio frequency unit 301 or the WiFi module 302. The microphone 3042 can receive sound (audio data) in operating modes such as telephone call mode, recording mode, and voice recognition mode, and can process such sound into audio data. The processed audio (voice) data can be converted into a format that can be transmitted to a mobile communication base station via the radio frequency unit 301 in telephone call mode. The microphone 3042 can implement various types of noise cancellation (or suppression) algorithms to eliminate (or suppress) noise or interference generated during the reception and transmission of audio signals.

[0137] The mobile terminal 300 also includes at least one sensor 305, such as a light sensor, a motion sensor, and other sensors. Optionally, the light sensor includes an ambient light sensor and a proximity sensor. Optionally, the ambient light sensor can adjust the brightness of the display panel 3061 according to the ambient light level, and the proximity sensor can turn off the display panel 3061 and / or backlight when the mobile terminal 300 is moved to the ear. As a type of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in various directions (generally three axes), and can detect the magnitude and direction of gravity when stationary. It can be used for applications that recognize the phone's posture (such as landscape / portrait switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), etc. Other sensors that may be configured in the phone, such as fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, and infrared sensors, will not be described in detail here.

[0138] Display unit 306 is used to display information input by the user or information provided to the user. Display unit 306 may include display panel 3061, which may be configured as a liquid crystal display (LCD), organic light-emitting diode (OLED), or other similar devices. Optionally, display unit 306 may be a flexible display screen.

[0139] User input unit 307 can be used to receive input numerical or character information, and generate key signal inputs related to user settings and function control of mobile terminal 300. Optionally, user input unit 307 may include touch panel 3071 and other input devices 3072. Touch panel 3071, also known as touch screen, can collect touch operations on or near the user (such as operations performed by the user using a finger, stylus, or any suitable object or accessory on or near touch panel 3071), and drive corresponding connection devices according to a pre-set program. Touch panel 3071 may include a touch detection device and a touch controller. Optionally, touch detection device detects the user's touch position and the signal generated by the touch operation, and transmits the signal to touch controller; touch controller receives touch information from touch detection device, converts it into touch point coordinates, and sends it to processor 310, and can receive and execute commands from processor 310. In addition, touch panel 3071 can be implemented using various types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 3071, the user input unit 307 may also include other input devices 3072. Optionally, other input devices 3072 may include, but are not limited to, one or more of the following: physical keyboard, function keys (such as volume control buttons, power buttons, etc.), trackball, mouse, joystick, etc., without being specifically limited here.

[0140] Optionally, the touch panel 3071 may cover the display panel 3061. When the touch panel 3071 detects a touch operation on or near it, it transmits the information to the processor 310 to determine the type of touch event. Subsequently, the processor 310 provides corresponding visual output on the display panel 3061 based on the type of touch event. Although in Figure 8 In this embodiment, the touch panel 3071 and the display panel 3061 are two independent components to realize the input and output functions of the mobile terminal 300. However, in some embodiments, the touch panel 3071 and the display panel 3061 can be integrated to realize the input and output functions of the mobile terminal 300. The specific implementation is not limited here.

[0141] Interface unit 308 serves as an interface through which at least one external device can connect to mobile terminal 300. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, an audio input / output (I / O) port, a video I / O port, a headphone port, and so on. Interface unit 308 may be used to receive input (e.g., data, power, etc.) from the external device and transmit the received input to one or more elements within mobile terminal 300, or it may be used to transmit data between mobile terminal 300 and the external device.

[0142] The memory 309 can be used to store software programs and various data. The memory 309 may primarily include a program storage area and a data storage area. Optionally, the program storage area may store the operating system, applications required for at least one function (such as sound playback, image playback, etc.), etc.; the data storage area may store data created based on the use of the mobile phone (such as audio data, phonebook, etc.). Furthermore, the memory 309 may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device.

[0143] The processor 310 is the control center of the mobile terminal 300. It connects various parts of the mobile terminal 300 via various interfaces and lines. By running or executing software programs and / or modules stored in the memory 309, and by calling data stored in the memory 309, it performs various functions and processes data of the mobile terminal 300, thereby providing overall monitoring of the mobile terminal 300. The processor 310 may include one or more processing units; preferably, the processor 310 may integrate an application processor and a modem processor. Optionally, the application processor mainly handles the operating system, user interface, and applications, while the modem processor mainly handles wireless communication. It is understood that the modem processor may also not be integrated into the processor 310.

[0144] The mobile terminal 300 may also include a power supply 311 (such as a battery) that supplies power to various components. Preferably, the power supply 311 can be logically connected to the processor 310 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system.

[0145] although Figure 8 As not shown, the mobile terminal 300 may also include a Bluetooth module, etc., which will not be described in detail here.

[0146] The units / modules in the terminal of this application embodiment can be merged, divided, and deleted according to actual needs.

[0147] In this application, the same or similar terms, concepts, technical solutions and / or application scenario descriptions are generally described in detail only when they appear for the first time. When they appear again, they are generally not repeated for the sake of brevity. When understanding the technical solutions and other contents of this application, the same or similar terms, concepts, technical solutions and / or application scenario descriptions that are not described in detail later can be referred to their previous relevant detailed descriptions.

[0148] In this application, the descriptions of the various embodiments have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0149] The technical features of the present application can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of the present application.

[0150] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations 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 patent protection scope of this application.

Claims

1. A flexible display screen, characterized in that, include: The flexible screen (100) includes a first display area (110), a first bending area (120), a second display area (130), a second bending area (140), and a third display area (150) connected in sequence. The first display area (110) and the second display area (130) are bent relative to each other through the first bending area (120), and the second display area (130) and the third display area (150) are bent relative to each other through the second bending area (140). A protective film (200) includes a substrate layer (210), a compensation layer (220), and a hardening layer (230); the substrate layer (210) covers the display side (101) of the flexible screen (100), the compensation layer (220) covers a portion of the substrate layer (210), and the compensation layer (220) corresponds to at least one of the first bending region (120) and the second bending region (140); the hardening layer (230) covers the compensation layer (220) and the substrate layer (210), and the side of the hardening layer (230) facing away from the substrate layer (210) is parallel to the display side (101); the elastic modulus of the substrate layer (210) and the compensation layer (220) is both less than the elastic modulus of the hardening layer (230).

2. The flexible display screen as described in claim 1, characterized in that, The first display area (110) and the second display area (130) are folded outward relative to each other through the first bending area (120), and the second display area (130) and the third display area (150) are folded inward relative to each other through the second bending area (140).

3. The flexible display screen as described in claim 2, characterized in that, The compensation layer (220) includes a first compensation segment (221) and a second compensation segment (222), the first compensation segment (221) corresponds to the first bending area (120), and the second compensation segment (222) corresponds to the second bending area (140).

4. The flexible display screen as described in claim 3, characterized in that, The thickness of the second compensation segment (222) is greater than the thickness of the first compensation segment (221).

5. The flexible display screen as described in claim 3, characterized in that, The length of the first compensation segment (221) is greater than the length of the first bending area (120), and both ends of the first compensation segment (221) extend in the length direction to correspond to the first display area (110) and the second display area (130), respectively; and / or, The length of the second compensation segment (222) is greater than the length of the second bending area (140), and the two ends of the length direction of the second compensation segment (222) extend to correspond to the second display area (130) and the third display area (150), respectively.

6. The flexible display screen as described in claim 2, characterized in that, The compensation layer (220) includes a first compensation layer (223), one end of the first compensation layer (223) in the length direction extends to correspond to the end of the third display area (150) away from the second bending area (140), the other end of the first compensation layer (223) in the length direction extends to correspond to the first display area (110), and the first compensation layer (223) corresponds to a portion of the first display area (110).

7. The flexible display screen as described in claim 6, characterized in that, The compensation layer (220) further includes a second compensation layer (224), which covers a portion of the first compensation layer (223), and the second compensation layer (224) corresponds to the second bending area (140).

8. The flexible display screen as described in claim 7, characterized in that, The length of the second compensation layer (224) is greater than the length of the second bending area (140), and the two ends of the length direction of the second compensation layer (224) extend to correspond to the second display area (130) and the third display area (150), respectively. The second compensation layer (224) corresponds to a portion of the second display area (130), and the second compensation layer (224) corresponds to a portion of the third display area (150).

9. The flexible display screen as described in any one of claims 1 to 8, characterized in that, The compensation layer (220) and the substrate layer (210) are made of the same material; The compensation layer (220) and the substrate layer (210) are integrally formed.

10. A smart terminal, characterized in that, include: The flexible display screen as described in any one of claims 1 to 9.

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