Display device

Abstract

The embodiment of the invention provides a display device. The display device comprises a flexible display module; the winding and unwinding module comprises a reel and a winding and unwinding power assembly connected with the reel, one end of the flexible display module is connected with the reel, and the winding and unwinding power assembly is used for driving the reel to rotate so as to wind the flexible display module on the reel and further used for driving the flexible display module to be unwound from the reel and unfolded to be in a fan shape. According to the display device disclosed by the embodiment of the invention, the flexible display module is fan-shaped in the unfolded state, so that a user with a larger viewing angle range and different angles can conveniently watch a display picture, and the display device is relatively small in size in the folded state, so that the occupied area and the occupied space are reduced.

Description

Technical Field

[0001] The present disclosure relates to the field of display technologies, and particularly to a display device. Background Art

[0002] In the related art, a display screen is usually rectangular, and only users within a relatively small viewing angle range can normally view the display screen. Summary of the Invention

[0003] Embodiments of the present disclosure provide a display device to solve or alleviate one or more technical problems in the prior art.

[0004] As a first aspect of the embodiments of the present disclosure, embodiments of the present disclosure provide a display device, including:

[0005] A flexible display module;

[0006] A winding and unwinding module, including a reel and a winding and unwinding power assembly connected to the reel. One end of the flexible display module is connected to the reel. The winding and unwinding power assembly is configured to drive the reel to rotate to wind the flexible display module on the reel, and is further configured to drive the flexible display module to unwind from the reel and expand into a fan shape.

[0007] In some embodiments, the central angle corresponding to the fan shape presented by the flexible display module in the unfolded state is greater than or equal to 270°.

[0008] In some embodiments, the winding and unwinding power assembly includes an unwinding assembly. The unwinding assembly includes an unwinding motor and a first guide shaft and a second guide shaft arranged in parallel. The flexible display module is clamped between the first guide shaft and the second guide shaft. The free end of the flexible display module and the reel are respectively located on two sides of the unwinding assembly. The unwinding motor is connected to the first guide shaft. The unwinding motor is configured to drive the first guide shaft to rotate, and the second guide shaft follows the rotation of the first guide shaft to move the free end of the flexible display module in a direction away from the reel, forcing the reel to unwind the flexible display module.

[0009] In some embodiments, during the winding process of the flexible display module, the first guide shaft and the second guide shaft rotate following the winding of the flexible display module.

[0010] In some embodiments, the flexible display module includes a flexible support pad and a flexible display panel arranged in a stacked manner. The flexible support pad is provided with a containing groove, and the flexible display panel is located in the containing groove. The first guide shaft and the second guide shaft are respectively in press-contact with opposite surfaces of the flexible support pad.

[0011] In some embodiments, the depth of the containing groove is greater than the thickness of the flexible display panel.

[0012] In some embodiments, the display device further includes a housing. The winding and unwinding module is located inside the housing. The housing is provided with an opening, and the flexible display module is wound or unwound through the opening.

[0013] The flexible display module includes a flexible support pad and a flexible display panel arranged in a stacked manner. The free end of the flexible support pad is farther away from the reel than the free end of the flexible display panel. A protruding limiting strip is provided at the free end of the flexible support pad. When the flexible display module is in the retracted state, under the blocking action of the limiting strip, the free end of the flexible support pad is located outside the housing, and the flexible display panel is located inside the housing.

[0014] In some embodiments, the flexible display module includes a flexible support pad and a flexible display panel arranged in a stacked manner. A plurality of gravity bars are arranged inside the flexible support pad. The gravity bars are arranged along the radial direction of the sector inside the flexible support pad, and the plurality of gravity bars are arranged at intervals along the unfolding direction of the flexible display module.

[0015] In some embodiments, the material of the flexible support pad includes silicone; and / or, the material of the gravity bars includes metal.

[0016] In some embodiments, the reel is provided with a step extending in the axial direction, and one end of the flexible display module is adhered to the surface of the reel near the step.

[0017] In some embodiments, the height of the step is the same as the thickness of the flexible display module.

[0018] In some embodiments, the reel is a conical shaft.

[0019] According to the technical solution of the embodiments of the present disclosure, when the display is not needed, the winding and unwinding power assembly can drive the reel to rotate to wind the flexible display module on the reel. After winding, the volume of the display device is small, reducing the occupied area and space of the display device; when the display is needed, the winding and unwinding power assembly can drive the flexible display module to unwind from the reel and unfold in a sector shape, and the sector-shaped display screen can facilitate users in a larger viewing angle range and at different angles to view. Therefore, for the display device of the embodiments of the present disclosure, in the unfolded state, the flexible display module is in a sector shape, facilitating users in a larger viewing angle range and at different angles to view the display screen; in the retracted state, the volume of the display device is small, reducing the occupied area and space.

[0020] The above summary is only for the purpose of the specification and is not intended to be limiting in any way. In addition to the above-described illustrative aspects, embodiments, and features, further aspects, embodiments, and features of the present disclosure will be readily apparent by reference to the drawings and the following detailed description. Description of the Drawings

[0021] In the drawings, unless otherwise specified, the same reference numerals throughout the several views denote the same or similar components or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments in accordance with the present disclosure and should not be regarded as limiting the scope of the present disclosure.

[0022] Figure 1 Schematic diagram of the unfolded state of a display device according to an embodiment of the present disclosure;

[0023] Figure 2 is Figure 1 another view of Figure 2 showing the internal partial structure of the retractable module;

[0024] Figure 3 is Figure 1 schematic diagram of the retracted state of the display device shown;

[0025] Figure 4 Schematic diagram of the axial section of the retractable module in a display device according to an embodiment of the present disclosure;

[0026] Figure 5 Internal schematic diagram of the retractable module in a display device according to an embodiment of the present disclosure, Figure 5 showing the retracted state;

[0027] Figure 6 Cross-sectional schematic diagram of a unwind assembly according to an embodiment of the present disclosure;

[0028] Figure 7 Cross-sectional schematic diagram of a unwind assembly according to another embodiment of the present disclosure;

[0029] Figure 8 Cross-sectional schematic diagram of a flexible display module in its extending direction;

[0030] Figure 9 Partial plan schematic diagram of the flexible display module.

[0031] Explanation of reference numerals:

[0032] 10. Flexible display module; 11. Flexible support pad; 111. Holding groove; 112. Protection step; 113. Limiting strip; 114. Gravity strip; 12. Flexible display panel; 20. Retractable module; 21. Reel; 211. Step; 221. First guide shaft; 222. Second guide shaft; 223. Unwind motor; 224. Transmission mechanism; 231. Rewind motor; 232. Coupling; 233. Bearing; 30. Housing; 31. Opening; 40. Base. Detailed description of the invention

[0033] In the following, only some exemplary embodiments are briefly described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present disclosure, and different embodiments can be combined arbitrarily without conflict. Therefore, the accompanying drawings and the description are considered to be exemplary in nature rather than restrictive.

[0034] In addition to the rectangular display screen, in the related art, there is also a circular display screen. However, when not displaying, the circular display screen occupies a large area, resulting in waste of space.

[0035] Figure 1 Schematic diagram of the unfolded state of a display device according to an embodiment of the present disclosure, Figure 2 is Figure 1 another view of Figure 2 which shows the internal partial structure of the winding and unwinding module; Figure 3 is Figure 1 Schematic diagram of the retracted state of the display device shown in. The present disclosure provides a display device, which may include a flexible display module 10 and a winding and unwinding module 20. The winding and unwinding module 20 may include a reel 21 and a winding and unwinding power assembly connected to the reel 21. One end of the flexible display module 10 is connected to the reel 21. The winding and unwinding power assembly is used to drive the reel 21 to rotate to wind the flexible display module 10 on the reel 21. The winding and unwinding power assembly is also used to drive the flexible display module 10 to unwind from the reel 21 and unfold in a fan shape.

[0036] When the winding and unwinding power assembly drives the reel 21 to rotate, the reel 21 can wind the flexible display module 10 on the reel 21. After the winding process is completed, the display device is in the retracted state, as shown in Figure 3 the state shown. The winding and unwinding power assembly can drive the flexible display module 10 to unwind from the reel 21. After the unwinding process is completed, the display device is in the unfolded state, as shown in Figure 1 the state shown. In the present disclosure, the retracted state means that the flexible display module 10 is completely wound on the reel 21; the unfolded state means that the flexible display module 10 is completely unwound from the reel 21.

[0037] Exemplarily, the display device may have a partially retracted state and a partially unfolded state. The partially retracted state means that a part of the flexible display module 10 is wound on the reel 21 and the other part remains unfolded. The partially retracted state is achieved by winding from the unfolded state. The partially unfolded state means that a part of the flexible display module 10 is unwound from the reel 21 and the other part remains wound on the reel 21. The partially unfolded state is achieved by unwinding from the retracted state. Those skilled in the art can understand that although the implementation processes of the partially retracted state and the partially unfolded state are different, the two states can achieve the same display effect.

[0038] In the display device according to an embodiment of the present disclosure, when the display is not required, the winding and unwinding power assembly can drive the reel 21 to rotate to wind the flexible display module 10 on the reel 21. After winding, the volume of the display device is small, reducing the occupied area and space of the display device; when the display is required, the winding and unwinding power assembly can drive the flexible display module 10 to unwind from the reel 21 and unfold in a fan shape. The fan-shaped display screen can facilitate viewing by users within a larger viewing angle range and at different angles. Therefore, in the display device according to an embodiment of the present disclosure, in the unfolded state, the flexible display module is in a fan shape, facilitating viewing of the display screen by users within a larger viewing angle range and at different angles; in the retracted state, the volume of the display device is small, reducing the occupied area and space.

[0039] In one embodiment, the central angle corresponding to the fan shape presented by the flexible display module 10 in the unfolded state is greater than or equal to 270°. Exemplarily, the central angle corresponding to the fan shape presented by the flexible display module 10 in the unfolded state can be greater than or equal to 335°.

[0040] In such a display device, in the unfolded state, the flexible display module 10 can present a shape close to an annular shape. Thus, the display area can be divided into 4 display sub-areas according to angles, facilitating viewing by users at 4 angles, and the viewing range of users at each angle is close to 90°.

[0041] Figure 4 It is a schematic cross-sectional view of the winding and unwinding module in the display device according to an embodiment of the present disclosure. Figure 5 It is an internal schematic view of the winding and unwinding module in the display device according to an embodiment of the present disclosure. Figure 5 The shown state is the retracted state. To ensure that the flexible display module 10 can be smoothly wound on the reel 21, the reel 21 can be a tapered shaft, as Figure 4 shown. That is, the circumferential radii at both ends of the reel 21 are different, and the circumferential radius at one end of the reel 21 can be greater than that at the other end. Thus, the flexible display module 10, which is in a fan shape in the unfolded state, can be smoothly wound on the reel 21, as Figure 5 shown. The circumferential radii at both ends of the reel 21 can be determined according to the size of the fan shape.

[0042] In one embodiment, the winding and unwinding power assembly can include an unwinding assembly. As Figure 5 shown, the unwinding assembly can include an unwinding motor (not shown in the figure), and a first guide shaft 221 and a second guide shaft 222 arranged in parallel. The flexible display module 10 is clamped between the first guide shaft 221 and the second guide shaft 222.

[0043] The flexible display module 10 may include a fixed end and a free end 100. One end of the flexible display module 10 connected to the reel 21 may be the fixed end, and the other end of the flexible display module 10 may be the free end 100.

[0044] As Figure 5 shown, the free end 100 of the flexible display module 10 and the reel 21 are respectively located on both sides of the unwinding assembly. The unwinding motor may be connected to the first guide shaft 221. The unwinding motor is used to drive the first guide shaft 221 to rotate, and the second guide shaft 222 follows the rotation of the first guide shaft 221 to move the free end 100 of the flexible display module 10 in a direction away from the reel 21, forcing the reel 21 to unwind the flexible display module 10.

[0045] The flexible display module 10 is clamped between the first guide shaft 221 and the second guide shaft 222. Thus, as Figure 5 shown, the first guide shaft 221 contacts the lower surface of the flexible display module 10, and the second guide shaft 222 contacts the upper surface of the flexible display module 10. When the unwinding motor drives the first guide shaft 221 to rotate counterclockwise, the second guide shaft 222 will rotate clockwise following the counterclockwise rotation of the first guide shaft 221. Thus, under the driving action of the rotation of the first guide shaft 221 and the second guide shaft 222, the free end 100 of the flexible display module 10 moves in a direction away from the reel 21. Under the pulling action of the flexible display module 10, the reel 21 is forced to rotate in the direction opposite to the winding direction to unwind. For example, in Figure 5 when the reel 21 rotates counterclockwise, it winds up, and when the reel 21 rotates clockwise, it unwinds.

[0046] In the related art, the reel 21 is actively rotated to unwind. Such an unwinding process may cause the unwinding speed to be too fast, resulting in the flexible display module 10 bulging, causing the flexible display module 10 to be subjected to unnecessary stress, and further affecting the lifespan of the flexible display module 10. In the embodiments of the present disclosure, the cooperative rotation of the first guide shaft 221 and the second guide shaft 222 is used to push the free end 100 of the flexible display module 10 in a direction away from the reel 21, and the reel 21 is forced to rotate to unwind by relying on the pulling action of the flexible display module 10, which can ensure that the flexible display module 10 between the unwinding assembly and the reel 21 remains flat during the unwinding process, avoid the flexible display module 10 from bulging during the unwinding process, and extend the lifespan of the flexible display module 10.

[0047] Exemplarily, during the unwinding process, a preset torsion is applied to the reel 21 to prevent the reel 21 from rotating too fast due to inertia during unwinding, ensure that the reel 21 rotates to unwind as the flexible display module 10 is pulled, and ensure a smooth unwinding process.

[0048] Figure 6 2 is a cross-sectional schematic diagram of an unwinding assembly in an embodiment of the present disclosure. For example, the second guide shaft 222 and the first guide shaft 221 can be connected to each other through a transmission mechanism 224 at one end. Thus, when the unwinding motor 223 drives the first guide shaft 221 to rotate, under the transmission action of the transmission mechanism 224, the second guide shaft 222 follows the rotation of the first guide shaft 221. The transmission mechanism 224 can include a gear transmission, a belt transmission, or a chain transmission. For example, the transmission mechanism 224 can include a first gear and a second gear, the first gear is arranged on the first guide shaft 221, the second gear is arranged on the second guide shaft 222, and the first gear is meshed with the second gear.

[0049] In another embodiment, the surface of the second guide shaft 222 may contact the surface of the first guide shaft 221 at least at one end. When the unwinding motor drives the first guide shaft 221 to rotate, the second guide shaft 222 follows the rotation of the first guide shaft 221 under the action of contact friction.

[0050] In one embodiment, Figure 6 As shown, the flexible display module 10 may include a stacked flexible support pad 11 and a flexible display panel 12. The flexible support pad 11 is provided with a receiving groove 111, and the flexible display panel 12 is located in the receiving groove 111. The first guide shaft 221 and the second guide shaft 222 are respectively pressed and contacted with the opposite surfaces of the flexible support pad 11. Figure 6 In the embodiment, the holding groove 111 can extend along the extension direction of the flexible display module 10, and the flexible support pad 11 includes protective steps 112 located at the edges of both sides of the holding groove 111. The first guide shaft 221 is in pressure contact with the lower surface of the flexible support pad 11, and the second guide shaft 222 is in pressure contact with the upper surface of the protective step 112, and the second guide shaft 222 does not contact the surface of the flexible display panel 12. The lower surface of the flexible support pad 11 and the upper surface of the protective step 112 are opposite surfaces of the flexible support pad 11. With such a structure, the second guide shaft 222 will not contact the surface of the flexible display panel 12, thereby avoiding damage to the surface of the flexible display panel 12 and further extending the life of the flexible display module 10.

[0051] Exemplarily, the depth of the receiving groove 111 may be greater than the thickness of the flexible display panel 12 , so that the first guide shaft 221 may be a cylindrical guide shaft, and the first guide shaft 221 will not contact the flexible display panel 12 when it is pressed into contact with the upper surface of the protection step 112 .

[0052] Figure 7A cross-sectional schematic view of the unwinding assembly in another embodiment of the present disclosure is shown. When the depth of the storage groove 111 is less than or equal to the thickness of the flexible display panel 12, in order to prevent the second guide shaft 222 from contacting the surface of the flexible display panel 12, the second guide shaft 222 can be set as a guide shaft with larger ends and a smaller middle part. That is to say, the circumferential radius of the part of the second guide shaft 222 corresponding to the flexible display panel 12 is smaller, and the circumferential radius of the part of the second guide shaft 222 corresponding to the protection step 112 is larger, as Figure 7 shown. Thus, when the second guide shaft 222 is in press contact with the upper surface of the protection step 112, it will not contact the flexible display panel 12.

[0053] The material of the flexible support pad 11 can include silicone. For example, the material of the flexible support pad 11 is silicone. The material of the flexible support pad 11 is not limited to silicone, and the material of the flexible support pad 11 can also include other organic materials.

[0054] In one embodiment, as Figure 4 shown, the winding and unwinding power assembly can include a winding assembly. The winding assembly can include a winding motor 231. The winding motor 231 is connected to the reel 21 through a coupling 232. Both ends of the reel 21 are supported by bearings 233. Exemplarily, the winding motor 231 can be a motor with a reduction device. Thus, the winding motor 231 can drive the reel 21 to rotate at a relatively low speed, avoiding wrinkles in the part of the flexible display module 10 wound on the reel 21 due to the too-fast rotation of the winding motor during the winding process.

[0055] During the winding process, the first guide shaft 221 and the second guide shaft 222 rotate following the winding of the flexible display module 10. The first guide shaft 221 and the second guide shaft 222 play a role of guiding and limiting during the winding process, ensuring that the flexible display module 10 is evenly wound on the reel 21.

[0056] As Figure 5 shown, the reel 21 is provided with a step 211 extending in the axial direction. One end of the flexible display module 10, that is, the fixed end of the flexible display module 10, is adhered to the surface of the reel 21 near the step 211. The flexible display module 10 starts to be wound on the reel 21 from the position of the step 211. By providing the step 211 and adhering the fixed end of the flexible display module 10 to the surface of the reel 21 near the step 211, the step difference between the inner and outer circles of the flexible display module 10 on the reel 21 can be reduced or eliminated during the winding process, avoiding additional stress on the flexible display module 10 and prolonging the service life of the flexible display module 10.

[0057] Exemplarily, the height of the step 211 is the same as the thickness of the flexible display module 10. In this way, the step difference between the inner and outer circles of the flexible display module 10 on the reel 21 can be eliminated.

[0058] As Figures 3 - 5 shown, the display device may further include a housing 30, and the winding and unwinding module 20 may be located inside the housing 30. The housing 30 is provided with an opening 31, and the flexible display module 10 is wound or unwound through the opening 31. That is to say, the flexible display module 10 passes through the opening 31 during the winding and unwinding processes. The shape of the housing 30 may be set according to the shape of the reel 21.

[0059] Figure 8 is a schematic cross-sectional view of the flexible display module in its extending direction. As Figure 3 , Figure 5 and Figure 8 shown, the flexible display module 10 may include a flexible support pad 11 and a flexible display panel 12 which are stacked. The free end of the flexible support pad 11 is farther away from the reel 21 than the free end of the flexible display panel 12. A raised limiting strip 113 is provided at the free end of the flexible support pad 11. When the flexible display module 10 is in the retracted state, under the blocking action of the limiting strip 113, the free end 100 of the flexible support pad 11 is located outside the housing 30, and the flexible display panel 12 is located inside the housing 30.

[0060] As Figure 5 shown, the limiting strip 113 is higher than the opening 31. Thus, the limiting strip 113 can play a role in limiting the winding. When the limiting strip 113 contacts the housing 30, the winding ends. Thus, in the retracted state, the limiting strip 113 is limited outside the housing 30 at the position of the opening 31. Under the blocking action of the limiting strip 113, the free end 100 of the flexible support pad 11 is located outside the housing 30, and the flexible display panel 12 is located inside the housing 30, avoiding the difficulty in the next unwinding caused by the flexible display module 10 completely entering the housing 30.

[0061] As Figure 4 and Figure 5 shown, both the unwinding assembly and the winding assembly are located inside the housing 30. During the winding process, the first guide shaft 221 and the second guide shaft 222 rotate following the winding of the flexible display module 10. The first guide shaft 221 and the second guide shaft 222 play a role in guiding and limiting the flexible display module 10 during the winding process, preventing the flexible display module 10 from rubbing against the housing 30 at the opening position.

[0062] As Figure 3 and Figure 5 shown, the display device may further include a base 40. The base 40 is located at the bottom of the housing 30, and the base 40 is used to support the display device.

[0063] Figure 9 It is a partial planar schematic diagram of a flexible display module. As Figure 8 , Figure 9 shown, a plurality of gravity bars 114 are arranged inside the flexible support pad 11. The gravity bars 114 are arranged in the radial direction of the sector inside the flexible support pad 11. The plurality of gravity bars 114 are arranged at intervals along the extending direction of the flexible display module 10. Arranging a plurality of gravity bars 114 inside the flexible support pad 11 can improve the support performance of the flexible support pad 11; and in the unfolded state, relying on the weight of the flexible support pad 11 can offset the curling force of the flexible display module 10 itself, making the surface of the flexible display panel 12 flat.

[0064] Arranging the gravity bars 114 in the radial direction of the sector can avoid the influence of the gravity bars 114 on winding, and ensure normal winding and unwinding.

[0065] The material of the gravity bars 114 may include metal. For example, when the material of the gravity bars 114 is metal, the gravity bars 114 may be steel bars. Such gravity bars 114 have a large density, and can make the size of the gravity bars 114 smaller while ensuring the weight, reducing the influence of the gravity bars 114 on winding and unwinding.

[0066] The flexible display panel may be an organic light-emitting diode (OLED) display panel.

[0067] In the unfolded state of the display device according to the embodiments of the present disclosure, the flexible display module is in a sector shape, which is convenient for users in a larger viewing angle range and at different angles to view the display screen. In the folded state, the display device has a smaller volume, reducing the occupied area and space.

[0068] The display device may be: a display device, a mobile phone, a tablet computer, a television, a monitor, a laptop computer, a digital photo frame, a navigator, or any product or component with a display function.

[0069] In the description of this specification, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present disclosure.

[0070] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present disclosure, "a plurality of" means two or more unless otherwise specifically defined.

[0071] In the present disclosure, unless otherwise clearly defined and limited, terms such as "installed", "connected", "coupled", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0072] In the present disclosure, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0073] The above disclosure provides many different embodiments or examples for implementing different structures of the present disclosure. For the sake of simplifying the present disclosure, the components and settings of specific examples are described above. Of course, they are only examples and are not intended to limit the present disclosure. In addition, the present disclosure may repeat reference numerals and / or reference letters in different examples. Such repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0074] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of various changes or substitutions. Different parts in different embodiments can be combined with each other without conflict, and all of these should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. A display device, characterized in that, Comprising: Flexible display module; Retracting and deploying module, including a reel and a retracting and deploying power assembly connected to the reel. One end of the flexible display module is connected to the reel. The retracting and deploying power assembly is used to drive the reel to rotate to wind the flexible display module on the reel, and is also used to drive the flexible display module to unwind from the reel and expand in a fan shape.

2. The display device according to claim 1, wherein The central angle corresponding to the fan shape presented by the flexible display module in the unfolded state is greater than or equal to 270°.

3. The display device according to claim 1, characterized in that, The retracting and deploying power assembly includes an unwinding assembly. The unwinding assembly includes an unwinding motor and a first guide shaft and a second guide shaft arranged in parallel. The flexible display module is clamped between the first guide shaft and the second guide shaft. The free end of the flexible display module and the reel are respectively located on both sides of the unwinding assembly. The unwinding motor is connected to the first guide shaft. The unwinding motor is used to drive the first guide shaft to rotate, and the second guide shaft follows the rotation of the first guide shaft to move the free end of the flexible display module in a direction away from the reel, forcing the reel to unwind the flexible display module.

4. The display device according to claim 3, characterized in that, During the winding process of the flexible display module, the first guide shaft and the second guide shaft rotate following the winding of the flexible display module.

5. The display device according to claim 3, characterized in that The flexible display module includes a flexible support pad and a flexible display panel arranged in a stacked manner. The flexible support pad is provided with a receiving groove, and the flexible display panel is located in the receiving groove. The first guide shaft and the second guide shaft are respectively in pressing contact with the opposite surfaces of the flexible support pad.

6. The display device according to claim 5, wherein The depth of the receiving groove is greater than the thickness of the flexible display panel.

7. The display device according to claim 1, wherein The display device further includes a housing. The retracting and deploying module is located in the housing. The housing is provided with an opening, and the flexible display module is wound or unwound through the opening; The flexible display module includes a flexible support pad and a flexible display panel arranged in a stacked manner. The free end of the flexible support pad is farther from the reel than the free end of the flexible display panel. The free end of the flexible support pad is provided with a protruding limiting strip. When the flexible display module is in the retracted state, under the blocking action of the limiting strip, the free end of the flexible support pad is located outside the housing, and the flexible display panel is located inside the housing.

8. The display device according to claim 1, wherein The flexible display module includes a flexible support pad and a flexible display panel arranged in a stacked manner. A plurality of gravity bars are arranged in the flexible support pad along the radial direction of the fan shape, and the plurality of gravity bars are arranged at intervals along the unfolding direction of the flexible display module.

9. The display device according to claim 8, wherein The material of the flexible support pad includes silicone; and / or, the material of the gravity bars includes metal.

10. The display device according to claim 1, wherein, The reel is provided with a step extending in the axial direction, and one end of the flexible display module is adhered to the surface of the reel near the step position.

11. The display device according to claim 10, wherein The height of the step is the same as the thickness of the flexible display module.

12. The display device according to claim 1, characterized in that, The reel is a conical shaft.

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