A flexible display device and its control method, electronic equipment

Abstract

This application provides a flexible display device and its control method, as well as an electronic device. The flexible display device includes: a flexible display panel, a first shaft, a second shaft, a fixing member, and a housing; the housing forms a receiving cavity and an opening in the receiving cavity, the first shaft, the second shaft, and the fixing member are disposed within the receiving cavity; the flexible display panel passes through the opening and includes: a first end and a second end, the first end being disposed within the receiving cavity and fixedly connected to the fixing member, and the second end being disposed outside the receiving cavity; the second shaft is parallel to the first shaft and configured to rotate around the first shaft and around its own axis; the fixing member is disposed between the trajectory of the second shaft rotating around the first shaft and the first shaft. This application extends the service life of the roll-type flexible display device by reducing the concentrated stress experienced by the flexible display panel during the rolling / unrolling process.

Description

Technical Field

[0001] This application relates to the field of display device technology, and in particular to a flexible display device and its control method, and an electronic device. Background Technology

[0002] The development of display devices is rapidly evolving, often involving minor adjustments to function or structure based on actual market demands. However, these adjustments can easily lead to new problems. For example, related technologies have proposed bendable or rollable display screens to balance portability and large-screen interactive experiences in electronic devices. Rollable screens, also known as rollable displays, achieve portability by rolling up the flexible display panel and large-screen display by unfolding it. However, in actual use, each unfolding / rolling of electronic devices subjectes the screen structure to bending and deformation, resulting in long-term complex dynamic loads that compromise the lifespan of the display device.

[0003] It should be noted that the information in the background section of the invention is only used to enhance the understanding of the background of the invention, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0004] This application provides a flexible display device and its control method and electronic device, which aim to improve the structural stability of roll-type flexible display devices and extend the service life of roll-type flexible display devices.

[0005] In one aspect, embodiments of this application provide a flexible display device, including: a flexible display panel, a first axis, a second axis, a fixing member, and a housing;

[0006] The housing is used to form a receiving cavity and an opening on the receiving cavity, and the first shaft and the second shaft are disposed in the receiving cavity;

[0007] The flexible display panel passes through the opening and includes: a first end and a second end, wherein the first end is disposed within the accommodating cavity and is fixedly connected to the fixing member, and the second end is disposed outside the accommodating cavity;

[0008] The second shaft, parallel to the first shaft, is configured to rotate about the first shaft and about its own axis.

[0009] The fixing member is disposed between the trajectory of the second shaft member rotating around the first shaft member and the first shaft member.

[0010] Optionally, the first shaft is configured to rotate about its own axis.

[0011] Optionally, it further includes: a control module connected to the second shaft and configured to drive the second shaft to rotate about the first shaft in a first clockwise direction and / or in a second clockwise direction;

[0012] Wherein, the first clockwise direction is opposite to the second clockwise direction.

[0013] Optionally, the control module includes: a first drive module and a first linkage;

[0014] The first drive module is connected to the second shaft via the first connecting rod; wherein, the end of the first connecting rod connected to the first drive module is coaxial with the first shaft, and the end of the first connecting rod connected to the second shaft is coaxial with the second shaft.

[0015] Optionally, it further includes: a first limiting member and a second limiting member, located within the accommodating cavity; wherein the center of the first limiting member is directly opposite the axis of the first shaft member, and the second limiting member is connected between the first shaft member and the second shaft member;

[0016] The first limiting member is configured to fix the position of the first shaft member;

[0017] The second limiting member is configured to fix the trajectory of the second shaft member rotating around the first shaft member.

[0018] Optionally, it further includes: a first limiting member and a guide rail, located within the accommodating cavity; wherein the center of the first limiting member is directly opposite the axis of the first shaft, and the guide rail overlaps with the trajectory of the second shaft rotating around the first shaft;

[0019] The first limiting member is configured to fix the position of the first shaft member;

[0020] The guide rail is configured to fix the trajectory of the second shaft rotating around the first shaft.

[0021] The flexible display device provided in this application has the following advantages:

[0022] (1) The flexible display device provided in this application embodiment fixes the flexible display panel to the fixing member in the accommodating cavity. The fixing member is disposed between the trajectory of the second shaft rotating around the first shaft and the first shaft. By controlling the rotation of the second shaft around the first shaft, the flexible display panel can be rolled up or unfolded, thereby effectively reducing the bending degree of the flexible display panel during rolling up or unfolding, thereby reducing the stress on the flexible display panel and thus reducing the damage and destruction of the flexible display panel under cyclic load.

[0023] (2) The tensile stress on the first end of the flexible display panel only increases suddenly when it is fully unfolded. However, in actual product applications, roll-type flexible display devices typically switch between the maximum rolled-up state and the half-frame state, which does not significantly increase the tensile stress on the first end. Therefore, the embodiments of this application also fully consider the actual usage factors of roll-type flexible display devices, which helps to further improve the structural stability of flexible display devices and extend their service life.

[0024] (3) The flexible display panel can be rolled up or unfolded by relying solely on the second axis to rotate around the first axis, thereby saving the use of the control module and helping to reduce the manufacturing cost of the flexible display device.

[0025] In another aspect, embodiments of this application also provide a control method for a flexible display device, applied to the flexible display device as described in any of the foregoing embodiments, comprising:

[0026] The second axis is controlled to rotate around the first axis in a first clockwise direction to cause the flexible display panel to roll up, or the second axis is controlled to rotate around the first axis in a second clockwise direction to cause the flexible display panel to unfold.

[0027] The control method for the flexible display device provided in this application has the following advantages:

[0028] (1) The flexible display device controlled by the control method has all the advantages of the flexible display device in any of the above embodiments.

[0029] (2) This control method can achieve the roll-up or unfolding of the flexible display panel by switching the rotation direction of the second axis member while relying solely on the rotation of the second axis member around the first axis member.

[0030] In another aspect, embodiments of this application also provide a flexible display device, including: a flexible display panel, a first axis, a second axis, and a housing;

[0031] The housing is used to form a receiving cavity and an opening on the receiving cavity, and the first shaft, the second shaft and the fixing member are disposed in the receiving cavity;

[0032] The flexible display panel passes through the opening and includes: a first end and a second end, wherein the first end is disposed within the accommodating cavity and is fixedly connected to the second shaft member, and the second end is disposed outside the accommodating cavity;

[0033] The second shaft, parallel to the first shaft, is configured to rotate about the first shaft and about its own axis.

[0034] Optionally, it further includes: a control module; connected to the second shaft, configured to drive the second shaft to rotate about the first shaft in a first clockwise direction and / or in a second clockwise direction, and to drive the second shaft to rotate about its own axis in the first clockwise direction and / or in the second clockwise direction;

[0035] Wherein, the first clockwise direction is opposite to the second clockwise direction.

[0036] Optionally, the control module includes: a first drive module and a first linkage, a second drive module and a second linkage;

[0037] The first drive module is connected to the second shaft via the first connecting rod; wherein, the end of the first connecting rod connected to the first drive module is coaxial with the first shaft, and the end of the first connecting rod connected to the second shaft is coaxial with the second shaft;

[0038] The second drive module is connected to the second shaft via the second connecting rod; wherein the second connecting rod and the second shaft are coaxial.

[0039] The flexible display device provided in this application has the following advantages:

[0040] (1) The flexible display device provided in this application embodiment fixes the flexible display panel to the second shaft. By controlling the second shaft to rotate around the first shaft and / or its own axis, the flexible display panel can be rolled up or unfolded, thereby effectively reducing the bending degree of the flexible display panel during rolling up or unfolding, thereby reducing the stress on the flexible display panel and thus reducing the damage and destruction of the flexible display panel under cyclic load.

[0041] (2) The tensile stress on the first end of the flexible display panel only increases suddenly when it is fully unfolded. However, in actual product applications, roll-type flexible display devices typically switch between the maximum rolled-up state and the half-frame state, which does not significantly increase the tensile stress on the first end. Therefore, the embodiments of this application also fully consider the actual usage factors of roll-type flexible display devices, which helps to further improve the structural stability of flexible display devices and extend their service life.

[0042] (3) The flexible display panel can be rolled up or unfolded by rotating the second shaft around the first shaft and / or its own axis, thereby improving the control accuracy of the roll-up or unfolding of the flexible display panel. In this way, the number of times the flexible display panel is wrapped around the second shaft is maintained when the flexible display panel is not fully unfolded, thereby reducing the stress pull on the first end.

[0043] In another aspect, embodiments of this application also provide a control method for a flexible display device, applied to the flexible display device as described in any of the foregoing embodiments, comprising:

[0044] When the unfolded ratio of the flexible display panel is greater than a first ratio threshold and less than a second ratio threshold, the second axis is controlled to rotate around the first axis in a first clockwise direction to cause the flexible display panel to roll up; or, the second axis is controlled to rotate around the first axis in a second clockwise direction to cause the flexible display panel to unfold.

[0045] When the unfolded ratio of the flexible display panel is less than the first ratio threshold, the second axis is controlled to rotate around its own axis in the first clockwise direction to cause the flexible display panel to roll up; or, the second axis is controlled to rotate around its own axis in the second clockwise direction to cause the flexible display panel to unfold.

[0046] The control method for the flexible display device provided in this application has the following advantages:

[0047] (1) The flexible display device controlled by the control method has all the advantages of the flexible display device in any of the above embodiments.

[0048] (2) The control method can rotate the second shaft around the first shaft and / or its own axis, and adjust the order and direction of rotation according to the current unfolding ratio of the flexible display panel, thereby realizing the control of the roll-up or unfolding of the flexible display panel and further reducing the stress tension on the first end.

[0049] In another aspect, embodiments of this application also provide an electronic device, including: two flexible display devices as described in any of the above embodiments;

[0050] The two flexible display devices share a flexible display panel.

[0051] The electronic device provided in this application embodiment includes the flexible display device in any of the above embodiments, and also has all the advantages of the above flexible display device. Attached Figure Description

[0052] The accompanying drawings are for reference and illustration only and are not intended to limit the scope of protection of this application. The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0053] Figure 1 A schematic diagram of the appearance of a flexible display device in the related art is shown.

[0054] Figure 2 A schematic diagram of the internal winding of a flexible display device in the related art is shown.

[0055] Figure 3 This illustration shows a schematic diagram of the retracted state of a flexible display device according to one embodiment of the present application.

[0056] Figure 4 A schematic diagram of the unfolded state of a flexible display device according to one embodiment of this application is shown.

[0057] Figure 5 A schematic diagram of a control module of a flexible display device according to one embodiment of the present application is shown.

[0058] Figure 6 A cross-sectional structural schematic diagram of a limiting member in one embodiment of the present application is shown.

[0059] Figure 7 A cross-sectional structural schematic diagram of a limiting member in another embodiment provided in this application is shown.

[0060] Figure 8 This illustration shows a first state of winding up a flexible display device according to yet another embodiment of the present application.

[0061] Figure 9This illustration shows a second state of winding up a flexible display device according to yet another embodiment of the present application.

[0062] Figure 10 This illustration shows a third state of winding up a flexible display device according to yet another embodiment of the present application.

[0063] Figure 11 A schematic diagram of a control module of a flexible display device according to another embodiment provided in this application is shown.

[0064] Figure 12 A schematic diagram of the appearance of an electronic device according to one embodiment of the present application is shown. Detailed Implementation

[0065] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0066] Figure 1 A schematic diagram of the appearance of a flexible display device in the related art is shown. For example... Figure 1 As shown, current rollable display screens typically include a housing 15 and a retractable flexible display panel 14.

[0067] Figure 2 A schematic diagram of the internal winding of a flexible display device in the related art is shown. For example... Figure 2 As shown, current rollable displays typically employ a single-axis mechanism, utilizing the rotation of the first axis 11 built into the housing 15 to achieve the roll-up and unfolding of the flexible display panel 14. Based on this structure, each unfolding / rolling of the flexible display panel causes bending and deformation of the entire screen structure. Rollable displays typically offer narrow, medium, and wide-format options. Considering the convenience of practical use, the narrow / medium format is used far more frequently than the wide format. Even so, in all format applications, the mechanical structure of the entire flexible display panel is stretched, and the entire flexible display panel is subjected to complex dynamic loads over a long period, which is detrimental to extending the screen's lifespan. The inventors hope to propose a solution, particularly for the narrow / medium format usage scenarios, to reduce the tensile stress on the flexible display panel and extend the screen's lifespan.

[0068] In view of the above analysis, this application proposes a flexible display device and its control method and electronic device, which provides at least two shafts to restrict the trajectory of the flexible display panel's roll-up or roll-up, and controls the rotational movement of the second shaft to drive the flexible display panel to roll up or roll up. This can effectively reduce the bending degree of the flexible display panel during roll-up or roll-up, thereby reducing the stress on the flexible display panel and thus reducing damage and destruction of the flexible display panel under cyclic loading. Furthermore, the tensile stress on the first end only suddenly increases when the flexible display panel is fully unfolded. Roll-up flexible display devices are usually used in a narrow / half-frame state, in which the tensile force on the first end will not increase significantly. Therefore, this application also fully considers the conventional use scenarios of roll-up flexible display devices, which helps to further extend the service life of the flexible display device.

[0069] The embodiments of this application will now be described with reference to the accompanying drawings.

[0070] Figure 3 This illustration shows a schematic diagram of the retracted state of a flexible display device according to one embodiment of the present application. Figure 4 This illustration shows a schematic diagram of the unfolded state of a flexible display device according to one embodiment of this application, in its rolled-up state. (Combined with...) Figure 3 and Figure 4 As shown, this application provides a flexible display device, including: a flexible display panel 14, a first shaft 11, a second shaft 12, a fixing member 13, and a housing 15.

[0071] In this embodiment of the application, the flexible display device may be a rollable display device, which may include a housing 15 with a built-in shaft and a flexible display panel 14 that can roll up or unfold with the rotation of the shaft.

[0072] The housing 15 is used to form a receiving cavity and an opening on the receiving cavity, and the first shaft 11, the second shaft 12 and the fixing member 13 are disposed in the receiving cavity.

[0073] In order to improve space utilization and enhance the portability of the flexible display device, in some optional embodiments, the shape of the housing 15 and the accommodating cavity may include a cylindrical shape.

[0074] In some alternative embodiments, the opening may be located on the arcuate side of the cylindrical housing 15, and the shape of the opening may include a rectangle. The length of the long side of the opening may be slightly greater than the width of the flexible display panel 14, thereby facilitating the flexible display panel 14 to roll up / unroll through the opening.

[0075] For example, the length of the long side of the opening can be 1% to 3% greater than the width of the flexible display panel 14.

[0076] In this embodiment of the application, the width of the flexible display panel 14 may refer to the length of the flexible display panel 14 perpendicular to the rolling / unrolling direction.

[0077] The flexible display panel 14 passes through the opening and includes a first end 141 and a second end 142. The first end 141 is disposed inside the accommodating cavity and is fixedly connected to the fixing member 13, while the second end 142 is disposed outside the accommodating cavity.

[0078] The second shaft 12, parallel to the first shaft 11, is configured to rotate about the first shaft 11 and about its own axis.

[0079] In this embodiment, the second shaft 12 rotates around the first shaft 11 and / or around its own axis, which can cause the flexible display panel 14 to roll up or unfold, thereby changing the length of the flexible display panel 14 outside the accommodating cavity, and consequently changing the size of the screen that can be displayed to the user.

[0080] In this embodiment, the second shaft 12 can be driven to rotate around the first shaft 11 by the control module, thereby causing the flexible display panel 14 to roll up or unfold. Furthermore, the first shaft 11 and the second shaft 12 can rotate around their own axis as the flexible display panel 14 moves, thereby reducing the stress on the flexible display panel 14.

[0081] The fixing member 13 is disposed between the trajectory 121 of the second shaft member 12 rotating around the first shaft member 11 and the first shaft member 11.

[0082] To improve the stability of the connection between the first end 141 of the flexible display panel 14 and the fixing member 13, in an optional embodiment, the length of the fixing member 13 may be greater than the width of the flexible display panel 14. For example, the length of the fixing member 13 may be 2% to 5% greater than the width of the flexible display panel 14.

[0083] In one alternative embodiment, the fastener 13 may be a cylinder parallel to the first shaft 11 or the second shaft 12.

[0084] In order to further improve the space utilization rate within the accommodating cavity, in an optional embodiment, the fixing member 13 may be a U-shaped column surrounding a portion of the circumference of the first shaft member 11.

[0085] To facilitate the housing 15 in restricting the positions of the first shaft 11, the second shaft 12, and the fixing member 13, in an optional embodiment, the lengths of the first shaft 11, the second shaft 12, and the fixing member 13 are equal.

[0086] To prevent interference between the limiting structure between the first shaft 11, the second shaft 12, or the fixing member 13 and the housing 15 and the flexible display panel 14, in some optional embodiments, the length of the first shaft 11 or the second shaft 12 may be greater than the width of the flexible display panel 14. For example, the length of the first shaft 11 or the second shaft 12 may be 2% to 5% greater than the width of the flexible display panel 14.

[0087] In some alternative embodiments, the first shaft 11, the second shaft 12, or the fastener 13 may be made of metal. For example, the material of the first shaft 11, the second shaft 12, or the fastener 13 may include at least one of the following: stainless steel, titanium, aluminum, etc.

[0088] Through the above embodiments, the flexible display panel 14 is fixedly connected to the fixing member 13 in the accommodating cavity. The fixing member 13 is disposed between the trajectory 121 of the second shaft member 12 rotating around the first shaft member 11 and the first shaft member 11. By controlling the rotation of the second shaft member 12 around the first shaft member 11, the flexible display panel 14 can be rolled up or unfolded, which can effectively reduce the bending degree of the flexible display panel 14 during rolling up or unfolding, thereby reducing the stress on the flexible display panel 14 and thus reducing the damage and destruction of the flexible display panel 14 under cyclic load.

[0089] Furthermore, the tensile stress on the first end 141 only increases suddenly when the flexible display panel 14 is fully unfolded. Roll-up flexible display devices are usually used in a half-frame state, which does not significantly increase the tensile force on the first end 141. Therefore, the embodiments of this application also fully consider the conventional use scenarios of roll-up flexible display devices, which helps to further extend the service life of flexible display devices.

[0090] Furthermore, the embodiments of this application can also achieve the roll-up or unfolding of the flexible display panel 14 by relying solely on the rotation of the second axis 12 around the first axis 11, thereby saving the use of the control module and helping to reduce the manufacturing cost of the flexible display device.

[0091] To reduce the stress on the flexible display panel 14 as it is rolled up / unrolled by the second shaft 12, in some optional embodiments, the coefficient of friction of the side surface of the first shaft 11 can be less than a preset coefficient of friction threshold. Thus, the side surface of the second shaft 12 is smooth, which can effectively help the flexible display panel 14 to be rolled up / unrolled by the second shaft 12.

[0092] In some alternative implementations, the preset friction coefficient threshold can be between 0.1 and 0.5.

[0093] For example, the coefficient of friction of the side surface of the first shaft 11 can be between 0.1 and 0.3.

[0094] In order to further reduce the stress on the flexible display panel 14 caused by the second shaft 12 to roll / unroll, in some alternative embodiments, this application also provides a flexible display device, wherein the first shaft 11 is configured to rotate about its own axis.

[0095] This application embodiment considers using a control module to actively control the rotation of the second axis 12, thereby causing the flexible display panel 14 to roll up or unfold. Therefore, in some optional embodiments, this application also provides a flexible display device, which further includes: a control module connected to the second axis 12, configured to drive the second axis 12 to rotate about the first axis 11 in a first clockwise direction 101 and / or in a second clockwise direction 102.

[0096] The first clockwise direction 101 is opposite to the second clockwise direction 102.

[0097] In some alternative examples, the first clockwise direction 101 may be a counterclockwise direction from one end of the first shaft 11 relative to the first shaft 11, and the second clockwise direction 102 may be a clockwise direction from that end of the first shaft 11 relative to the first shaft 11.

[0098] In some alternative examples, the first clockwise direction 101 may be a clockwise direction from one end of the first shaft 11 relative to the first shaft 11, and the second clockwise direction 102 may be a counterclockwise direction from that end of the first shaft 11 relative to the first shaft 11.

[0099] Figure 5 A schematic diagram of a control module for a flexible display device according to one embodiment of this application is shown. Figure 5 As shown, embodiments of this application consider using a linkage to connect and drive the second shaft 12 to rotate around the first shaft 11. Therefore, in some alternative embodiments, this application also provides a flexible display device, wherein the control module includes: a first drive module 161 and a first linkage 171.

[0100] The first drive module 161 is connected to the second shaft 12 via the first connecting rod 171.

[0101] The first connecting rod 171 is connected to the first drive module 161 at one end, which is coaxial with the first shaft 11, and the first connecting rod 171 is connected to the second shaft 12 at one end, which is coaxial with the second shaft 12.

[0102] The first drive module 161 may include a first motor.

[0103] Figure 6 A cross-sectional structural schematic diagram of a limiting member according to one embodiment of this application is shown. For example... Figure 6 As shown, embodiments of this application can also utilize limiting members to restrict the position of the shaft. Therefore, in some optional embodiments, this application also provides a flexible display device, which further includes: a first limiting member 181 and a second limiting member 182, located within the accommodating cavity.

[0104] The center of the first limiting member 181 is directly opposite the axis of the first shaft member 11, and the second limiting member 182 is connected between the first shaft member 11 and the second shaft member 12.

[0105] In some alternative implementations, the first limiting member 181 may be fixedly connected to the inner wall of the housing 15.

[0106] like Figure 6 As shown, in some optional embodiments, the first limiting member 181 can serve as the axis of the first shaft member 11.

[0107] The first limiting member 181 is configured to fix the position of the first shaft member 11.

[0108] The second limiting member 182 is configured to fix the trajectory 121 of the second shaft member 12 rotating around the first shaft member 11.

[0109] In some alternative implementations, the second limiting member 182 may be connected to the first limiting member 181.

[0110] In some alternative implementations, to save space, the first link 171 may include a structure of a first limiting member 181 and a second limiting member 182, thereby achieving a functional equivalent substitution.

[0111] In some optional embodiments, a portion of the second limiting member 182 can serve as the axis of the second shaft member 12, and the second shaft member 12 can rotate around this portion of the second limiting member 182.

[0112] In some optional embodiments, the first limiting member 181 may coincide with the structure of the end of the first connecting rod 171 connected to the first drive module 161. When the first drive module 161 drives the first connecting rod 171 to rotate, the first limiting member 181 and the second limiting member 182 rotate accordingly, causing the second shaft 12 to rotate around the first shaft 11.

[0113] Figure 7 A cross-sectional structural schematic diagram of a limiting member according to another embodiment of the present application is shown. For example... Figure 7As shown, embodiments of this application can also utilize the guide rail 19 to limit the position of the second shaft 12. Therefore, in some optional embodiments, this application also provides a flexible display device, which further includes: a first limiting member 181 and the guide rail 19, located within the accommodating cavity.

[0114] The center of the first limiting member 181 is directly opposite the axis of the first shaft member 11, and the guide rail 19 and the trajectory 121 of the second shaft member 12 rotating around the first shaft member 11 overlap.

[0115] The first limiting member 181 is configured to fix the position of the first shaft member 11.

[0116] In some alternative implementations, the first limiting member 181 may be disposed on the inner wall of the housing 15.

[0117] The guide rail 19 is configured to fix the trajectory 121 of the second shaft 12 rotating about the first shaft 11.

[0118] In some alternative implementations, the guide rail 19 may be disposed on the inner wall of the housing 15.

[0119] Based on the same inventive concept, this application also provides a control method for a flexible display device, applied to the flexible display device as described in any of the above embodiments, comprising:

[0120] The second axis 12 is controlled to rotate around the first axis 11 in a first clockwise direction 101 to cause the flexible display panel 14 to roll up, or the second axis 12 is controlled to rotate around the first axis 11 in a second clockwise direction 102 to cause the flexible display panel 14 to unfold.

[0121] Through the above embodiments, the control method can be applied to a flexible display device with a fixing member 13. The flexible display panel 14 can be rolled up or unfolded by switching the rotation direction of the second axis member 12, while only relying on the second axis member 12 to rotate around the first axis member 11.

[0122] Figure 8 This illustration shows a first state of winding up a flexible display device according to yet another embodiment of the present application. Figure 9 This illustration shows a second state of winding up a flexible display device according to yet another embodiment of the present application. Figure 10 This illustration shows a schematic diagram of the third state of a flexible display device according to yet another embodiment of this application, in which it is wound up. (Combined with...) Figures 8 to 10 As shown, based on the same inventive concept, this application also provides a flexible display device, including: a flexible display panel 14, a first shaft 11, a second shaft 12, and a housing 15.

[0123] The housing 15 is used to form a receiving cavity and an opening on the receiving cavity, and the first shaft 11 and the second shaft 12 are disposed in the receiving cavity.

[0124] The flexible display panel 14 passes through the opening and includes a first end 141 and a second end 142. The first end 141 is disposed inside the accommodating cavity and is fixedly connected to the second shaft 12, while the second end 142 is disposed outside the accommodating cavity.

[0125] The second shaft 12, parallel to the first shaft 11, is configured to rotate about the first shaft 11 and about its own axis.

[0126] Through the above embodiments, the flexible display panel 14 is fixedly connected to the second shaft 12. By controlling the rotation of the second shaft 12 around the first shaft 11 and / or its own axis, the flexible display panel 14 can be rolled up or unfolded, improving the control precision of the rolling up or unfolding of the flexible display panel 14. When the flexible display panel 14 is not fully unfolded, the number of turns of the flexible display panel 14 around the second shaft 12 is maintained, thereby reducing the stress tension on the first end 141, which helps improve the structural stability of the flexible display device and extend its service life. Furthermore, the tensile stress on the first end 141 only suddenly increases when the flexible display panel 14 is fully unfolded. In actual product applications, roll-type flexible display devices typically switch between the maximum rolled-up state and the half-frame state, thus not significantly increasing the tensile stress on the first end 141. Therefore, the embodiments of this application also fully consider the actual usage factors of roll-type flexible display devices, which helps to further improve the structural stability of the flexible display device and extend its service life.

[0127] This application embodiment considers using a control module to actively control the second axis 12 to rotate around the first axis 11 and / or its own axis, thereby causing the flexible display panel 14 to roll up or unfold. To this end, in some optional embodiments, this application also provides a flexible display device, which further includes: a control module; connected to the second axis 12, configured to drive the second axis 12 to rotate around the first axis 11 in a first clockwise direction 101 and / or in a second clockwise direction 102, and to drive the second axis 12 to rotate around its own axis in the first clockwise direction 101 and / or in the second clockwise direction 102;

[0128] The first clockwise direction 101 is opposite to the second clockwise direction 102.

[0129] In some alternative examples, the first clockwise direction 101 may be a counterclockwise direction from one end of the first shaft 11 relative to the first shaft 11, and the second clockwise direction 102 may be a clockwise direction from that end of the first shaft 11 relative to the first shaft 11.

[0130] In some alternative examples, the first clockwise direction 101 may be a clockwise direction from one end of the first shaft 11 relative to the first shaft 11, and the second clockwise direction 102 may be a counterclockwise direction from that end of the first shaft 11 relative to the first shaft 11.

[0131] Figure 11 A schematic diagram of a control module for a flexible display device according to yet another embodiment of the present application is shown. Figure 11 As shown, in this embodiment, a first link 171 is used to connect and drive a second shaft 12 to rotate around a first shaft 11, and a second link 172 is used to connect and drive the second shaft 12 to rotate around its own axis. Therefore, in some optional embodiments, this application also provides a flexible display device, wherein the control module includes: a first drive module 161 and a first link 171, a second drive module 162 and a second link 172.

[0132] The first drive module 161 is connected to the second shaft 12 via the first connecting rod 171; wherein, the end of the first connecting rod 171 connected to the first drive module 161 is coaxial with the first shaft 11, and the end of the first connecting rod 171 connected to the second shaft 12 is coaxial with the second shaft 12.

[0133] The second drive module 162 is connected to the second shaft 12 via the second connecting rod 172; wherein the second connecting rod 172 and the second shaft 12 are coaxial.

[0134] To further reduce costs and save space, in some alternative embodiments, the end of the first link 171 connected to the second shaft 12 may include a second link 172, and the second drive module 162 is fixedly connected to the end of the first link 171 connected to the second shaft 12 and can rotate with the first link 171.

[0135] In some alternative embodiments, the first link 171 may be connected to one end of the second drive module 162, and the second link 172 may be connected to the remaining end of the second drive module 162, so that the second drive module 162 can rotate following the first link 171.

[0136] The first drive module 161 may include a first motor, and the second drive module 162 may include a second motor.

[0137] In some alternative implementations, the flexible display device of this application can be configured with three states: a first state, a second state, and a third state.

[0138] For example, the first state can be the fully expanded state, the second state can be the partially expanded state, and the third state can be the fully contracted state.

[0139] like Figure 8 As shown, in some optional embodiments, in the first state, the number of times the flexible display panel 14 wraps around the second axis 12 is at its minimum, the number of times the flexible display panel 14 wraps around the first axis 11 is at its minimum, and the proportion of the flexible display panel 14 located outside the cavity is at its maximum.

[0140] like Figure 9 As shown, in some optional embodiments, in the second state, the flexible display panel 14 has more than 50% of its turns around the second axis 12, less than 50% of its turns around the first axis 11, and the proportion of the flexible display panel 14 located outside the cavity is greater than 30% and less than 80%.

[0141] like Figure 10 As shown, in some optional embodiments, in the third state, the flexible display panel 14 has the largest number of turns around the second axis 12, the flexible display panel 14 has the largest number of turns around the first axis 11, and the flexible display panel 14 has the smallest proportion located outside the cavity.

[0142] Based on the same inventive concept, this application also provides a control method for a flexible display device, applied to the flexible display device as described in any of the above embodiments, comprising:

[0143] When the unfolded ratio of the flexible display panel 14 is greater than the first ratio threshold and less than the second ratio threshold, the second axis member 12 is controlled to rotate around the first axis member 11 in the first clockwise direction 101 to make the flexible display panel 14 roll up, or the second axis member 12 is controlled to rotate around the first axis member 11 in the second clockwise direction 102 to make the flexible display panel 14 unfold.

[0144] In some alternative implementations, the first ratio threshold may be the ratio between the current length of the flexible display panel 14 outside the receiving cavity and the maximum length of the flexible display panel 14 outside the receiving cavity when the second axis 12 rotates to its maximum amplitude around its own axis in the first clockwise direction 101 and the second axis 12 rotates to its minimum amplitude around the first axis 11. That is, when the number of rotations of the flexible display panel 14 around the second axis 12 is the maximum and the number of rotations of the flexible display panel 14 around the first axis 11 is the minimum.

[0145] In some alternative implementations, the second ratio threshold is less than 1.

[0146] For example, the first percentage threshold can be 30%, and the second percentage threshold can be 80%.

[0147] When the unfolded ratio of the flexible display panel 14 is less than the first ratio threshold, the second axis member 12 is controlled to rotate around its own axis in the first clockwise direction 101 to make the flexible display panel 14 roll up, or the second axis member 12 is controlled to rotate around its own axis in the second clockwise direction 102 to make the flexible display panel 14 unfold.

[0148] Based on the same inventive concept, embodiments of this application also provide an electronic device, including: a flexible display device as described in any of the above embodiments.

[0149] In some alternative embodiments, the electronic device may include a flexible display device as described in any of the above embodiments.

[0150] Figure 12 A schematic diagram of the appearance of an electronic device according to one embodiment of the present application is shown. Figure 12 As shown, based on the same inventive concept, this application further provides an electronic device, including: two flexible display devices as described in any of the above embodiments.

[0151] The two flexible display devices share a flexible display panel.

[0152] The electronic device includes two flexible display devices, which in turn include two housings 15. The two housings 15 are symmetrically arranged and share a flexible display panel 14.

[0153] Wherein, the second end 142 of the flexible display panel 14 in any flexible display device can be the first end 141 of the flexible display panel 14 in the remaining flexible display device.

[0154] This embodiment allows the shafts within the two housings 15 to jointly unfold or roll up the flexible display panel 14, thereby improving the symmetrical aesthetics of the electronic device and enhancing the structural protection of the flexible display panel 14.

[0155] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0156] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, 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 number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0157] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0158] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0159] In this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device 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 terminal device. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes that element.

[0160] In the description of this application, unless otherwise stated, "multiple" means two or more. Unless otherwise stated, "approximately," "around," "about," etc., are defined in a non-absolute sense, expressing values ​​within ±10% of a reference value.

[0161] It should be noted that in the embodiments of this application, the words "exemplarily" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design schemes. Specifically, the use of the words "exemplarily" or "for example" is intended to present the relevant concepts in a specific manner.

[0162] In the description of this application, unless otherwise stated, "same layer" means that two or more defined objects are located on the same layer in a stacking relationship, or that they are all or partly on the same horizontal plane in the thickness direction of the stacking relationship.

[0163] In this article, the terms "and / or" and "and / or" are merely a description of the relationship between related objects, indicating that there can be three kinds of relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0164] Finally, it should be noted that specific examples have been used in this document to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the technical solutions and core ideas of this application. Although preferred embodiments of this application have been described, those skilled in the art, once they understand the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of this application.

Claims

1. A flexible display device, characterized in that, include: Flexible display panel, first axis, second axis, fastener and housing; The housing is used to form a receiving cavity and an opening on the receiving cavity, and the first shaft, the second shaft and the fixing member are disposed in the receiving cavity; The flexible display panel passes through the opening and includes: a first end and a second end, wherein the first end is disposed within the accommodating cavity and is fixedly connected to the fixing member, and the second end is disposed outside the accommodating cavity; The second shaft, parallel to the first shaft, is configured to rotate about the first shaft and about its own axis. The fixing member is disposed between the trajectory of the second shaft member rotating around the first shaft member and the first shaft member.

2. The flexible display device according to claim 1, characterized in that, The first shaft is configured to rotate about its own axis.

3. The flexible display device according to claim 1, characterized in that, Also includes: A control module, connected to the second shaft, is configured to drive the second shaft to rotate about the first shaft in a first clockwise direction and / or in a second clockwise direction; Wherein, the first clockwise direction is opposite to the second clockwise direction.

4. The flexible display device according to claim 3, characterized in that, The control module includes: a first drive module and a first linkage; The first drive module is connected to the second shaft via the first connecting rod; wherein, the end of the first connecting rod connected to the first drive module is coaxial with the first shaft, and the end of the first connecting rod connected to the second shaft is coaxial with the second shaft.

5. The flexible display device according to claim 1, characterized in that, Also includes: A first limiting member and a second limiting member are located within the accommodating cavity; wherein the center of the first limiting member is directly opposite the axis of the first shaft member, and the second limiting member is connected between the first shaft member and the second shaft member; The first limiting member is configured to fix the position of the first shaft member; The second limiting member is configured to fix the trajectory of the second shaft member rotating around the first shaft member.

6. The flexible display device according to claim 1, characterized in that, Also includes: A first limiting member and a guide rail are located within the accommodating cavity; wherein the center of the first limiting member is directly opposite the axis of the first shaft member, and the guide rail overlaps with the trajectory of the second shaft member rotating around the first shaft member; The first limiting member is configured to fix the position of the first shaft member; The guide rail is configured to fix the trajectory of the second shaft rotating around the first shaft.

7. A flexible display device, characterized in that, include: Flexible display panel, first axis component, second axis component, housing; The housing is used to form a receiving cavity and an opening on the receiving cavity, and the first shaft and the second shaft are disposed in the receiving cavity; The flexible display panel passes through the opening and includes: a first end and a second end, wherein the first end is disposed within the accommodating cavity and is fixedly connected to the second shaft member, and the second end is disposed outside the accommodating cavity; The second shaft, parallel to the first shaft, is configured to rotate about the first shaft and about its own axis.

8. The flexible display device according to claim 7, characterized in that, Also includes: Control module; Connected to the second shaft member, configured to drive the second shaft member to rotate about the first shaft member in a first clockwise direction and / or in a second clockwise direction, and to drive the second shaft member to rotate about its own axis in the first clockwise direction and / or in the second clockwise direction; Wherein, the first clockwise direction is opposite to the second clockwise direction.

9. The flexible display device according to claim 8, characterized in that, The control module includes: a first drive module and a first linkage, a second drive module and a second linkage; The first drive module is connected to the second shaft via the first connecting rod; wherein, the end of the first connecting rod connected to the first drive module is coaxial with the first shaft, and the end of the first connecting rod connected to the second shaft is coaxial with the second shaft; The second drive module is connected to the second shaft via the second connecting rod; wherein the second connecting rod and the second shaft are coaxial.

10. A control method for a flexible display device, characterized in that, Applied to the flexible display device as described in any one of claims 1 to 6, comprising: The second axis is controlled to rotate around the first axis in a first clockwise direction to cause the flexible display panel to roll up, or the second axis is controlled to rotate around the first axis in a second clockwise direction to cause the flexible display panel to unfold.

11. A control method for a flexible display device, characterized in that, Applied to the flexible display device as described in any one of claims 7 to 9, comprising: When the unfolded ratio of the flexible display panel is greater than a first ratio threshold and less than a second ratio threshold, the second axis is controlled to rotate around the first axis in a first clockwise direction to cause the flexible display panel to roll up; or, the second axis is controlled to rotate around the first axis in a second clockwise direction to cause the flexible display panel to unfold. When the unfolded ratio of the flexible display panel is less than the first ratio threshold, the second axis is controlled to rotate around its own axis in the first clockwise direction to cause the flexible display panel to roll up; or, the second axis is controlled to rotate around its own axis in the second clockwise direction to cause the flexible display panel to unfold.

12. An electronic device, characterized in that, include: Two flexible display devices as described in any one of claims 1 to 9; The two flexible display devices share a flexible display panel.

Images