Display device and driving method of display device

Abstract

The application relates to a display device and a driving method thereof, wherein the display device comprises a support assembly, a display panel and a driving assembly; the support assembly comprises a first support part and a second support part, the first support part is rotationally connected with the second support part and has a connecting area; the display panel is arranged around the support assembly; the driving assembly is arranged on the support assembly; in the folding state, the driving assembly abuts against the display panel and can drive the display panel to move along the circumferential direction of the support assembly, so as to adjust the relative position of the connecting area and the display panel. The display device provided by the application can reduce the folding mark and improve the display effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a display device and a driving method of the display device. BACKGROUND

[0002] In the existing foldable display device, the relative rotation between the two support structures is usually realized by a rotating member such as a hinge, and then the folding and unfolding of the display device is realized. In this process, since the relative position of the display panel and the aforementioned rotating member in the display device is relatively fixed, the position of the display panel that is pressed and forms a crease is also relatively fixed each time the display device is folded. Thus, with the increase of the folding times, the part of the display panel corresponding to the rotating member repeatedly deforms and is pressed, and the crease formed thereby becomes more obvious and difficult to eliminate, resulting in a decline in the display effect of the display device as a whole.

[0003] Therefore, there is an urgent need for a display device and a corresponding driving method that can improve the problem of crease aggravation after multiple foldings. SUMMARY

[0004] The present application provides a display device and a driving method of the display device, aiming to solve the problem of crease aggravation and poor display effect in a foldable display panel with the increase of folding times.

[0005] In a first aspect, the present application provides a display device, which has a folded state and an unfolded state. The display device comprises a support assembly, a display panel, and a driving assembly. The support assembly comprises a first support part and a second support part, and the first support part is rotationally connected with the second support part and has a connection area. The display panel is arranged around the support assembly. The driving assembly is arranged on the support assembly. In the folded state, the driving assembly abuts against the display panel and can drive the display panel to move along the circumferential direction of the support assembly, so as to adjust the relative position between the orthographic projection of the connection area on the display panel and the display panel.

[0006] In a second aspect, the present application provides a driving method of a display device. The method comprises the following steps. A display device is provided. The display device comprises a support assembly, a display panel, and a driving assembly. The display panel is arranged around the support assembly. The display panel comprises a plurality of drive signal lines, which extend along a first direction and are arranged at intervals in the circumferential direction of the support assembly. The driving assembly is arranged on the support assembly. The driving assembly abuts against the display panel and can drive the display panel to move along the circumferential direction. The display device has a folded state and an unfolded state. In a preset condition, the display panel is driven to move along the circumferential direction. A preliminary display area is selected on the display device. In the folded state, the coordinate information of the drive signal lines of the display panel located in the preliminary display area in the current display stage is obtained. A preliminary light-emitting signal is provided to the drive signal lines located in the preliminary display area according to the coordinate information.

[0007] The display device provided in the embodiments of the present application comprises a support assembly, a display panel and a driving assembly. The support assembly comprises a first support part and a second support part connected in rotation, so that the display device can be switched between a folded state and an unfolded state. The display panel is arranged around the support assembly and can move along the circumference of the support assembly under the driving of the driving assembly, so that the position of the part of the display panel corresponding to the connecting area at the junction of the first support part and the second support part on the display panel can be changed, that is, the crease can be formed at different positions on the display panel each time the display device is folded, so that the crease can be reduced and the display effect can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0008] The features, advantages and technical effects of the exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

[0009] Figure 1 is a structural schematic diagram of a display device provided in an embodiment of the present application;

[0010] Figure 2 is a sectional view schematic diagram of the display device provided in an embodiment of the present application in an unfolded state;

[0011] Figure 3 is a sectional view schematic diagram of the display device provided in an embodiment of the present application in a folded state;

[0012] Figure 4 is a sectional view schematic diagram of the display device provided in another embodiment of the present application in an unfolded state;

[0013] Figure 5 is a partial structural schematic diagram of the display device provided in an embodiment of the present application;

[0014] Figure 6 is a flowchart of a driving method of the display device provided in an embodiment of the present application;

[0015] Figure 7 is a flowchart of a driving method of the display device provided in another embodiment of the present application;

[0016] Figure 8 is a flowchart of a driving method of the display device provided in another embodiment of the present application.

[0017] Wherein:

[0018] 100 - display device;

[0019] 10 - support assembly; 20 - display panel; 30 - driving assembly; 40 - power supply assembly; 50 - housing;

[0020] 11 - first support portion; 12 - second support portion; 13 - connection region; 21 - display region; 22 - bezel region; 23 - spacing region; 24 - display body; 25 - flexible protective film; 31 - rotation shaft; 41 - retractable wire; 42 - adapter; 51 - accommodation cavity;

[0021] 311 - drive shaft; 312 - support shaft; 411 - connection ring; 511 - display opening; 512 - auxiliary display opening;

[0022] X - first direction; Y - second direction; Z - third direction.

[0023] In the drawings, like reference numerals refer to like elements throughout. The drawings are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the application. DETAILED DESCRIPTION

[0024] The features and exemplary embodiments of various aspects of the present application will be described below in detail, in order to make the purposes, technical solutions and advantages of the present application more clear. The following further describes the present application in detail with reference to the drawings and specific embodiments. It should be understood that the specific embodiments described herein are configured only to explain the present application, and are not configured to limit the present application. The present application can be implemented without some of these specific details by those skilled in the art. The following description of the embodiments is merely to provide a better understanding of the present application by showing examples of the present application.

[0025] It should be noted that, in this document, relational terms such as first and second, and the like, are used solely to distinguish one entity or action from another entity or action, without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises... " does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the stated elements.

[0026] It should be understood that, in describing the structure of a component, when one layer, one region is referred to as being "on" or "above" another layer, another region, it can mean that it is directly on or above the other layer, the other region, or other layers or regions are included therebetween. Moreover, if the component is turned over, the one layer, the one region will be "under" or "below" the other layer, the other region.

[0027] It should be understood that although the terms "first" and "second" may be used to describe the form of the display device in the embodiments of this application, these forms should not be limited to these terms, which are only used to distinguish these forms from each other. For example, without departing from the scope of the embodiments of this application, the first form may also be referred to as the second form, and similarly, the second form may also be referred to as the first form.

[0028] The features and exemplary embodiments of various aspects of this application will now be described in detail. Furthermore, the features, structures, or characteristics described below may be combined in any suitable manner in one or more embodiments.

[0029] With the development of display technology, foldable screen display devices have occupied a certain share of the market. Foldable screen display devices have an unfolded state and a folding mechanism. In the unfolded state, they can have a large display area, while in the folded state, they can reduce the size required for carrying, thus balancing portability and display effect.

[0030] Based on this, the inventors discovered that existing foldable screen display devices typically fold repeatedly at a fixed position in the display panel, meaning that creases on the display panel are formed in a fixed area. As the number of folds increases, this area is repeatedly folded and squeezed, eventually causing the creases to deepen and become difficult to eliminate, which has a significant negative impact on the overall display effect of the display device.

[0031] To address the aforementioned technical problems, this application provides a display device and a driving method for the display device, which can effectively improve the problems of obvious creases and poor display effects in foldable display devices.

[0032] Furthermore, to better understand this application, the following will be combined with... Figures 1 to 8 The display device and its driving method provided in the embodiments of this application will be described in detail.

[0033] Please refer to the following: Figures 1 to 3 , Figure 1 This is a schematic diagram of the structure of a display device provided in one embodiment of this application. Figure 2 This is a cross-sectional schematic diagram of a display device provided in an embodiment of this application in its unfolded state. Figure 3 This is a cross-sectional schematic diagram of a display device provided in an embodiment of this application in a folded state.

[0034] In a first aspect, embodiments of this application provide a display device 100, which has a folded state and an unfolded state. The display device 100 includes a support component 10, a display panel 20, and a driving component 30. The support component 10 includes a first support portion 11 and a second support portion 12, which are rotatably connected and have a connecting area 13. The display panel 20 is disposed around the support component 10. The driving component 30 is disposed on the support component 10. In the folded state, the driving component 30 abuts against the display panel 20 and can drive the display panel 20 to move circumferentially along the support component 10 to adjust the relative position of the orthographic projection of the connecting area 13 on the display panel 20 and the display panel 20.

[0035] This application provides a display device 100, which is a foldable display device having a folded state and an unfolded state and being able to switch between the two states. In the unfolded state, the display device 100 can use a large-area display panel 20 for display. In the folded state, the display panel 20 can be at least partially in a screen-off standby state.

[0036] The display device 100 includes a support assembly 10 for providing support and enabling state switching, a display panel 20 for displaying information, and a drive assembly 30 for moving the display panel 20. Specifically, the support assembly 10 includes a first support portion 11 and a second support portion 12, which are rotatably connected to each other, for example, through a hinge, pivot, or other structure. The first support portion 11 and the second support portion 12 may have the same or similar shape and size to keep the outer peripheral surface of the display device 100 regular in the folded state.

[0037] Optionally, the first support portion 11 and the second support portion 12 can be connected by a hinge, and the width of the connection area 13 is the same as or similar to the width of the hinge.

[0038] The display panel 20 is used to implement the display function and may include components such as a flexible circuit board, a support layer, and a screen. The display panel 20 is arranged around the support component 10, and the display side may be arranged on the side opposite to the support component 10. In the unfolded state, the length of the display panel 20 may be greater than the length of the support component 10, so that at least one end of the display panel 20 bypasses the side of the support component 10 and extends to the opposite back side, thereby reserving sufficient space during movement.

[0039] The drive assembly 30 is disposed within the support assembly 10. Optionally, it can be disposed inside the support assembly 10 to prevent the drive assembly 30 from being subjected to external impacts, while also saving space. Optionally, the drive assembly 30 may include at least one of drive components such as a drive shaft, drive wheel, or telescopic rod, and any component capable of driving the display panel 20 to move can be selected.

[0040] The driving component 30 can drive the display panel 20 to move circumferentially along the support component 10, thereby enabling the area opposite to the connecting area 13 to gradually move within the display panel 20. Furthermore, each time a fold is made, the crease can be located at a different position on the display panel 20, thereby avoiding repeated folding of the same position that would deepen the crease.

[0041] Optionally, when driving the display panel 20 to rotate, it should be ensured that its edge does not move from the back side of the support component 10 to a position on the display surface that exceeds the edge of the display window. That is, the area in the display device 100 that is displayed should always be completely filled by the part of the display panel 20 that can be displayed, so as to achieve a good display effect.

[0042] Optionally, in the display state, the position of the display panel 20 can be fixed to ensure a good display effect; in the folded state, the display panel 20 can be driven to rotate at a constant speed, or the display panel 20 can be driven to rotate intermittently at a preset time interval.

[0043] In some optional embodiments, the drive assembly 30 includes a plurality of rotating shafts 31 surrounded by the display panel 20. In the unfolded state, the rotating shafts 31 extend along a first direction X and are arranged sequentially in a second direction Y, with the first direction X intersecting the second direction Y.

[0044] In this embodiment, the driving component 30 can be configured as a rotating shaft 31, thereby providing both support and driving force for the display panel 20. The display panel 20 surrounds the rotating shaft 31, and two of the rotating shafts 31 can be positioned at the two ends in the unfolded state, allowing the display panel 20 to move around the space defined by the two rotating shafts 31.

[0045] In the unfolded state, the rotating shafts 31 extend along the first direction X and are spaced apart along the second direction Y. In addition to the two rotating shafts 31 located at both ends, other rotating shafts 31 may be provided between these two rotating shafts 31 to provide support at different positions. Optionally, the multiple rotating shafts 31 may all have the same diameter and length to ensure that the surface of the supported display panel 20 is flat.

[0046] Please see Figure 4 , Figure 4 This is a cross-sectional schematic diagram of a display device in an unfolded state according to another embodiment of this application. In some optional embodiments, the rotation shaft 31 includes at least one drive shaft 311, and the drive assembly 30 further includes a power member connected to the drive shaft 311 and capable of driving the drive shaft 311 to rotate in its own circumferential direction.

[0047] In the drive assembly 30, at least some of the multiple rotating shafts 31 can be drive shafts 311 for providing driving force. Optionally, at least one of the two rotating shafts 31 located at both ends of the display device 100 in the unfolded state can be configured as a drive shaft 311, or both can be configured as drive shafts 311.

[0048] The drive assembly 30 also includes a power component for directly providing power, which may be an electric motor, and is directly or indirectly connected to the drive shaft 311 through a structure such as a connecting rod, a transmission belt or a transmission gear, so that the drive shaft 311 can rotate in its own circumferential direction, and then transmit power to the display panel 20 through the part of the drive shaft 311 that abuts against the display panel 20, so that it can move in the circumferential direction of the support assembly 10.

[0049] Optionally, the power component can be configured in a one-to-one correspondence with the drive shaft 311, or multiple drive shafts 311 can be connected to the same power component simultaneously. Optionally, all of the multiple rotating shafts 31 can be configured as drive shafts 311, or at least one of the rotating shafts 31 can be configured as a drive shaft 311.

[0050] In some optional embodiments, the drive assembly 30 includes two or more drive shafts 311. In the unfolded state, the two ends of the display panel 20 in the second direction Y respectively abut against the drive shafts 311. The drive assembly 30 also includes a support shaft 312. In the unfolded state, the support shaft 312 is disposed between the drive shafts 311.

[0051] Optionally, the drive assembly 30 may simultaneously include two or more drive shafts 311 and at least one support shaft 312. The drive shafts 311, acting as shafts providing driving force, support the display panel 20 and drive it to move. The support shaft 312, on the other hand, only provides support. Optionally, the support shaft 312 can achieve follow-up movement through contact with the display panel 20, meaning the display panel 20 drives the support shaft 312 to rotate; alternatively, the support shaft 312 can be a fixed shaft, allowing the display panel 20 to contact and slide on the outer peripheral surface of the support shaft 312.

[0052] Optionally, in the unfolded state, with the central axis of the connecting area 13 as the axis of symmetry, the drive shafts 311 and support shafts 312 on both sides can be arranged symmetrically to form a more uniform support structure. By placing the drive shafts 311 on both sides and the support shafts 312 between the drive shafts 311, the display panel 20 can be subjected to more uniform force, reducing the possibility of deformation or wrinkling of the display panel 20 during circumferential movement.

[0053] In some optional embodiments, the power component is an electric motor, and the power component is connected to and disposed on the drive shaft 311 in a one-to-one correspondence with the drive shaft 311.

[0054] Optionally, a micro motor can output torque and drive the corresponding drive shaft 311 to rotate. In an embodiment where the display device 100 has a certain thickness, the drive shaft 311 can have a large diameter. In this case, the drive shaft 311 can be set as a hollow cylindrical structure, and the micro motor, as a power component, can be set inside the drive shaft 311. Alternatively, the power component can be set at a position adjacent to the drive shaft 311 that is easy to connect to.

[0055] Optionally, the drive assembly 30 may include multiple power components, which may be configured one-to-one with multiple drive shafts 311 to ensure sufficient and uniform driving force.

[0056] In some optional embodiments, the display panel 20 includes a display area 21 and a frame area 22. The frame area 22 is disposed on opposite sides of the display area 21 in the first direction X. A first drive tooth is provided on the side of the frame area 22 facing the support component 10, and a second drive tooth is provided on the outer peripheral surface of the drive shaft 311. The first drive tooth and the second drive tooth mesh with each other.

[0057] In this embodiment, the display panel 20 and the drive shaft 311 abut against each other to achieve transmission between them. This transmission can be achieved by setting transmission teeth and having them mesh with each other. Specifically, the display panel 20 may have a display area 21 for displaying functions and bezel areas 22 located on both sides of the display area 21 in the first direction X. Optionally, the bezel areas 22 may be used to house electronic components such as transistors, capacitors, and wiring required for display, and are connected to the light-emitting elements disposed in the display area 21 via scanning signal lines.

[0058] The bezel area 22 in the display panel 20 may have a first drive tooth on the side near the support component 10. These first drive teeth are arranged sequentially along the extension direction of the display panel 20, and their extension dimension in the first direction X should be less than or equal to the extension dimension of the bezel area 22 in that direction, so as to reduce the impact of the first drive teeth on the flatness and display effect of the display area 21.

[0059] Correspondingly, a second drive tooth can be provided on the drive shaft 311 at the position corresponding to the frame area 22. In the first direction X, the extension dimension of the second drive tooth can be greater than or equal to the extension dimension of the first drive tooth, thereby reducing the possibility of the display panel 20 misaligning in this direction and causing disengagement.

[0060] By engaging the first drive tooth with the second drive tooth, the drive shaft 311 can stably apply the driving force to the display panel 20, while requiring less space and correspondingly reducing the overall thickness of the display device 100.

[0061] In some alternative embodiments, the width of the border area 22 in the first direction X is less than or equal to 5 mm.

[0062] The bezel area 22 is located on both sides of the display area 21 and is used to house the electronic components required for the display. To ensure that the display panel 20 has a high screen-to-body ratio and sufficient display area, the width of the bezel area 22 can be less than or equal to 5mm. Optionally, the bezel areas 22 on both sides of the display area 21 can have the same width.

[0063] Please see Figure 5 , Figure 5 This is a partial structural schematic diagram of a display device provided in one embodiment of this application. In some optional embodiments, the display device 100 further includes a power supply component 40, which includes a retractable wire 41 and an adapter 42, wherein the retractable wire 41 is electrically connected between the adapter 42 and the display panel 20.

[0064] The display device 100 may further include a power supply component 40 for providing the display panel 20 with the electrical energy required for its operation. The power supply component includes a retractable wire 41 and an adapter 42 that are electrically connected to each other. The retractable wire 41 can extend and retract in its extension direction, maintaining a stable electrical connection while its length changes. The adapter 42 can be electrically connected to a battery, thereby enabling the transfer of electrical energy from the battery to the flexible circuit board in the display panel 20 via the adapter 42 and the retractable wire 41.

[0065] Optionally, the display panel 20 may include a screen body and a flexible circuit board. The flexible circuit board may be disposed on the side of the screen body near the support component 10, and the retractable wire 41 can be electrically connected to the flexible circuit board. The retractable wire 41 should have a certain degree of elasticity, be able to automatically return to its original position after being stretched, and its maximum stretched length should be greater than the maximum distance between the connection point on the flexible circuit board and the adapter 42 during rotation, so as to prevent the wire from being damaged or broken.

[0066] Optionally, the power supply component 40 may be disposed on the support component 10 and surrounded by the display panel 20. The power unit in the drive component 30 may also be connected to the battery via the power supply component 40 to enable the power unit to operate.

[0067] The elasticity of the retractable wire 41 ensures that the display panel 20 receives a stable power supply as it moves circumferentially.

[0068] In some alternative embodiments, the display panel 20 is connected end to end and arranged in a ring shape in the circumferential direction of the support component 10; the adapter 42 includes a slip ring, and a connecting ring 411 is provided at one end of the retractable wire 41. The connecting ring 411 is sleeved on the slip ring and can slide along the circumferential direction of the slip ring.

[0069] The display panel 20 is arranged around the support component 10. Optionally, the display panel 20 can be connected end to end and arranged in a ring shape using splicing screen technology, while surrounding the support component 10. In this embodiment, the display panel 20 can move continuously in a fixed direction, for example, it can maintain a clockwise movement.

[0070] Correspondingly, the adapter 42 may include a slip ring with a smooth surface, which may be made of a conductive material, such as metal, or the slip ring may have a plating / coating made of a conductive material. A connecting ring 411 may be provided at one end of the retractable wire 41 electrically connected to the adapter 42. The connecting ring 411 is fitted onto the slip ring and can slide circumferentially on the slip ring. Similarly, the connecting ring 411 may be directly made of a conductive material or have a coating / plating made of a wire material. Fitting the connecting ring 411 onto the slip ring establishes an electrical connection between the two. Optionally, the inner diameter of the connecting ring 411 may be slightly larger than the width of the slip ring, increasing the contact area between the two and facilitating current flow.

[0071] By setting a structure in which the connecting ring 411 is sleeved on the slip ring, the retractable wire 41 can be prevented from getting tangled or knotted during the rotation of the display panel 20 in a specific direction. Instead, the relative position is adjusted by the movement of the connecting ring 411 on the slip ring while maintaining the electrical connection.

[0072] In some alternative embodiments, a gap 23 is provided between opposite ends of the display panel 20 in the circumferential direction of the support component 10, and in the unfolded state, the width of the gap 23 is smaller than the width of the connection area 13.

[0073] Optionally, the display panel 20 can also be connected end-to-end without using a splicing method, but simply have a certain extension dimension with a certain gap between the beginning and end in its extension direction, forming a gap area 23. In this embodiment, the display panel 20 cannot continuously move in a specific direction, but needs to move back and forth between two preset positions. For example, the display panel 20 can first be rotated clockwise until the gap area 23 moves to a position near the edge rotation axis 31 on the back side of the support component 10, and then the driving direction can be reversed to rotate the display panel 20 counterclockwise until the gap area 23 moves to the position of the other edge rotation axis 31. Thus, the gap area 23 can always be located on the back side of the support component 10, avoiding the possibility of the display area being missing when rotating this area to the display side.

[0074] The width of the interval 23 should be small so that the display panel 20 has ample room for rotation in the circumferential direction. Optionally, in the unfolded state, the extension dimension of the interval in the circumferential direction of the support component 10 can be less than or equal to the width of the connection area 13.

[0075] In some optional embodiments, the display device 100 further includes a housing 50, which encloses a receiving cavity 51. The support assembly 10, the drive assembly 30, and the display panel 20 are at least partially disposed in the receiving cavity 51. The support assembly 10 and the drive assembly 30 are connected to the housing 50. The housing 50 has a display opening 511 communicating with the receiving cavity 51 on one side surface in the third direction Z. The first direction X, the second direction Y, and the third direction Z are intersected in pairs. The display panel 20 is at least partially exposed by the display opening 511.

[0076] The display device 100 may further include a housing 50 disposed on the outside for providing protection. The housing 50 may enclose a nearly rectangular receiving cavity 51. The support components 10 may all be disposed in the receiving cavity 51. At least a portion of the display panel 20 is disposed in the receiving cavity 51, and at least a portion of the area on the display side is exposed through an opening in the receiving cavity 51 to achieve the display function. The driving components 30 may be similarly surrounded by the display panel 20, i.e., all disposed in the receiving cavity 51.

[0077] Optionally, the receiving cavity 51 can be configured as two parts corresponding to the first support part 11 and the second support part 12, respectively for accommodating the support parts on both sides and the corresponding drive components 30. In the folded state, the two parts of the receiving cavity 51 can be separated from each other and rotate relative to each other.

[0078] Furthermore, a display opening 511 may be provided on the surface of the housing 50 near the display side of the display device 100. This opening communicates with the receiving cavity 51 and is used to expose the display panel 20 for display. Optionally, the display opening 511 may be in various shapes such as rectangle, rounded rectangle, circle, or ellipse, as long as it is adapted to the image to be displayed.

[0079] Optionally, the first direction X, the second direction Y, and the third direction Z can be set to be perpendicular to each other.

[0080] In some optional embodiments, the housing 50 is further provided with an auxiliary display opening 512. In the third direction Z, the display opening 511 and the auxiliary display opening 512 are respectively provided on opposite sides. The area of ​​the auxiliary display opening 512 is smaller than the area of ​​the display opening 511. The display panel 20 is exposed at least partially through the auxiliary display opening 512.

[0081] The housing 50 may have a display opening 511 and an auxiliary display opening 512 on opposite sides in the third direction Z. Both are connected to the receiving cavity 51, and a portion of the display panel 20 is exposed through the opening. The display opening 511 can serve as a larger main display area and is used in the unfolded state, while the auxiliary display opening 512 can serve as a smaller auxiliary display area located on the back side and is used in the folded state.

[0082] Optionally, in an embodiment where an auxiliary display opening 512 is provided and a gap area 23 is provided between the beginning and end of the display panel 20, the auxiliary display opening 512 and the gap area 23 should be kept offset from each other during the process of driving the display panel 20 to move circumferentially, that is, the gap area 23 should be prevented from being exposed by the auxiliary display opening 512, so that the auxiliary display area can maintain a good display effect.

[0083] In some optional embodiments, the receiving cavity 51 is provided with grooves on its opposite side walls in the first direction X. The grooves are recessed in the direction away from the support component 10, and the display panel 20 extends at least partially into the grooves and is slidably connected to the housing 50.

[0084] To further limit the movement trajectory of the display panel 20, an annular groove extending circumferentially along the support assembly 10 may be provided on the side wall of the receiving cavity 51. The opposite two sides of the display panel 20 are respectively inserted into the grooves on both sides, so that the display panel 20 can move along the trajectory of the groove.

[0085] The groove originates from the two opposing sidewalls of the receiving cavity 51 in the first direction X and is recessed outwards away from the support assembly 120. Optionally, in embodiments where the display panel 20 includes a display area 21 and a bezel area 22, the groove may be offset from the display area 21, and its depth may be less than the width of the bezel area 22 to avoid affecting the integrity of the display. In embodiments where the bezel area 22 is provided with a second drive tooth, the sidewalls of the receiving cavity 51 and the second drive tooth should be spaced apart, that is, the portion provided with the second drive tooth should not extend into the groove to avoid interference between the second drive tooth and the housing 50 during rotation.

[0086] In some optional embodiments, the display panel 20 includes a display body 24 and a flexible protective film 25 stacked together, wherein the orthographic projection of the display body 24 onto the flexible protective film 25 is within the outline of the flexible protective film 25.

[0087] The display panel 20 can be constructed by stacking a display body 24 and a flexible protective film 25. The flexible protective film 25 is disposed on the side of the display body 24 near the support assembly 10, providing support and protection. The flexible protective film 25 can prevent scratches and reduce wear during the rotation of the display panel 20, and provide support for the display body 24. The orthographic projection of the display body 24 onto the flexible protective film 25 can be within the contour range of the flexible protective film 25, so that the flexible protective film can completely protect the back side of the display body 24.

[0088] Optionally, in an embodiment where a second drive tooth is provided in the frame area 22, the second drive tooth may be provided on the flexible protective film 25.

[0089] Please see Figure 6 , Figure 6 This is a flowchart of a driving method for a display device according to one embodiment of this application. In a second aspect, this application proposes a driving method for a display device 100, comprising:

[0090] S1. A display device 100 is provided. The display device 100 includes a support component 10, a display panel 20, and a driving component 30. The display panel 20 is disposed around the support component 10 and includes multiple rows of driving signal lines. The driving signal lines extend along a first direction X and are spaced apart in the circumferential direction of the support component 10. The driving component 30 is disposed on the support component 10 and abuts against the display panel 20 and can drive the display panel 20 to move in the circumferential direction. The display device 100 has a folded state and an unfolded state.

[0091] S2. Under preset conditions, drive the display panel 20 to move in the circumferential direction;

[0092] S3. Select a pre-display area on the display device 100. In the folded state, obtain the coordinate information of the drive signal line of the display panel 20 located in the pre-display area during the current display stage.

[0093] S4. Provide a pre-light signal to the drive signal line located in the pre-display area according to the coordinate information.

[0094] This application also provides a driving method for a display device 100, which first includes a step S1 of providing the display device 100, wherein the display panel 20 in the display device 100 is arranged around the support component 10 and can move circumferentially along the support component 10 under the drive of the driving component 30. The specific structural information can be referred to the description of the display device 100 in any of the embodiments of the first aspect mentioned above, and will not be repeated here.

[0095] The display panel 20 is provided with multiple drive signal lines extending along the first direction X. These drive signal lines can be used to provide electrical signals to the pixel columns in the display panel 20. Optionally, the drive signal lines and pixel columns can be configured in a one-to-one correspondence, and the multiple drive signal lines are arranged at intervals in the second direction Y.

[0096] In step S2, the state of the display device 100 is determined. If the preset conditions are met, the display panel 20 can be driven to move. Optionally, determining the state of the display device 100 may include determining the current state of the display device 100, and / or may include collecting relevant parameters such as the number of times, frequency, and duration of switching between the unfolded and folded states, and / or may include collecting relevant parameters such as the flatness information, crease position, and crease depth of the display panel 20 in the display device 100. This application does not impose specific limitations on these parameters.

[0097] In step S3, a pre-display area is selected on the display device 100. This pre-display area refers to the area on the display panel 20 that will be displayed. As mentioned earlier, when the display device 100 is moved in a folded state, the pre-display area refers to the portion of the display panel 20 located on the display side of the display device 100 that is to be displayed after the display device 100 is switched to an unfolded state in its current posture. This area is the pre-display area.

[0098] It is understandable that the relative position of the pre-display area with the support component 10, drive component 30 and other components is fixed, and as the display panel 20 moves in the circumferential direction of the support component 10, the position of the pre-display area on the display panel 20 also moves accordingly.

[0099] After selecting the pre-display area, the coordinate information of the drive signal lines located within that area in the display panel 20 under the current posture can be obtained. For example, the drive signal lines can be numbered along the extension direction of the display panel 20, for example, as column 1 to column x. When obtaining position information, the numbers of the drive signal lines are obtained, for example, column p to column q.

[0100] In step S4, a pre-light emission signal is applied to the corresponding drive signal line according to the aforementioned coordinate information. The pre-light emission signal refers to an electrical signal that can immediately drive the pixels in the pre-display area to emit light after the display device 100 switches from the folded state to the unfolded state.

[0101] By adopting the aforementioned driving method, it is possible to quickly and accurately make the pixels in the display area emit light each time the display panel 20 is switched to the unfolded state, while reducing creases and ensuring good display effect.

[0102] Please see Figure 7 , Figure 7 This is a flowchart of a driving method for a display device provided in another embodiment of this application. In some optional embodiments, step S2, which drives the display panel 20 to move circumferentially under preset conditions, includes:

[0103] S21. Obtain the folding information of the display device 100 and determine whether the folding information meets the preset standard. The folding information includes the duration of the display device being in the folded state and / or the number of times the display device switches from the unfolded state to the folded state.

[0104] When the display panel 20 is in a folded state, it can rotate around the support component 10. Based on this, when determining whether the display panel 20 has reached the preset condition for starting to rotate, the determination can be made based on the folding information of the display device 100.

[0105] Specifically, the folding information can refer to the number of folds and / or the duration of folding of the display device 100. For example, the display device 100 may have a sensor installed in the connection area 13 or other locations, or the duration of the display device 100 being in a folded state can be calculated based on the light emission state of the display panel 20. Once the folding duration exceeds a preset duration standard, the display panel 20 can begin to rotate. Alternatively, the aforementioned method can be used to calculate the number of folds performed at the same location on the display panel 20; once this number of folds exceeds a preset number, the display panel 20 can begin to rotate. Alternatively, the display panel 20 can begin to rotate after either of the aforementioned two determination methods is achieved.

[0106] Optionally, to simplify the judgment criteria, the display panel 20 can be driven to rotate immediately when the display device 100 switches from the unfolded state to the folded state. This rotation can be continuous or intermittent.

[0107] In some optional embodiments, step S3 of selecting a pre-display area on the display device 100 includes:

[0108] S31. Obtain the circumferential moving speed of the display panel 20 in column a / second;

[0109] S32. Obtain the circumferential extension dimension b of the pre-display area;

[0110] S33. Obtain the coordinate information of the drive signal line of the display panel 20 located in the pre-display area, from column m to column m+b.

[0111] Step S4, which provides a pre-light emission signal to the drive signal line located in the pre-display area based on coordinate information, includes:

[0112] S41. At the nth second, provide a pre-light signal to the drive signal lines from column m to column m+b.

[0113] S42. At the (n+1)th second, provide a pre-light signal to the drive signal lines from column (m+a) to column (m+a+b).

[0114] In step S3 of selecting the pre-display area, in addition to the method of collecting data for each display stage to obtain the coordinate information of the corresponding drive signal line, the coordinate information of the drive signal line can also be calculated based on the rotation speed of the display panel 20 and the width of the pre-display area to predict the coordinate information of the drive signal line that should be in the pre-display area.

[0115] Specifically, the moving speed of the display panel 20 can first be obtained based on the parameters of the driving component 30 or the parameters in the control program. This moving speed is recorded as a column / second, which means that in each second, the display panel 20 rotates the area width corresponding to the a column driving signal line.

[0116] Subsequently, the extended dimension b columns of the pre-display area and the coordinate information of the drive signal lines in the current pre-display area are obtained. The extended dimension refers to the presence of b columns of drive signal lines in the pre-display area along the circumference of the support component 10, and the coordinate information refers to the drive signal lines in the pre-display area being from column m to column m+b in the current display stage.

[0117] Furthermore, step S4, which provides a light-emitting signal to the pre-display area based on the aforementioned collected speed and coordinate data, can be implemented by calculating the coordinate information in the current display stage based on the coordinate information within the pre-display area in the previous display stage. For example, each second is considered a display stage. In the nth second, based on the data collected in steps S31 to S33, a pre-display signal is applied to the drive signal lines from column m to column (m+b). In the subsequent n+1th second, based on the rotational speed of the display panel 20, a pre-display signal is applied to the drive signal lines from column (m+a) to column (m+a+b).

[0118] This allows for the calculation of the coordinate information of the pre-display area for each light-emitting stage, making the light emission more accurate and eliminating the need to repeatedly obtain coordinate information, thus further improving the display effect.

[0119] In some optional embodiments, step S1 of providing the display device 100 further includes:

[0120] The display panel is arranged in a ring shape with its ends connected.

[0121] Step S2, which involves driving the display panel 20 to move circumferentially, includes:

[0122] Drive the display panel 20 to move unidirectionally along a preset direction;

[0123] Alternatively, step S2, which drives the display panel 20 to move circumferentially, includes:

[0124] The drive display panel 20 moves back and forth between a first preset position and a second preset position.

[0125] Optionally, the display panel 20 in the display device 100 can employ flexible splicing screen technology, connecting the two ends of the display panel 20 in the circumferential direction of the support component 10 to form a ring-shaped display panel 20. In this embodiment, when driving the display panel 20 to rotate, the display panel 20 can be made to continuously move in one direction, or the display panel 20 can be made to rotate in one direction for a period of time and then rotate in the opposite direction for a period of time, that is, the display panel 20 can be made to rotate back and forth between two or more preset positions.

[0126] Both of the aforementioned driving methods can reduce creases on the display panel 20. Optionally, in embodiments where the display panel 20 is driven to reciprocate between multiple preset positions, the rotational speed in one direction can be defined as a positive value after the drive signal lines are numbered, and the rotational speed in the opposite direction can be defined as a negative value for easier calculation. Whether the display panel 20 has reached the preset position can be determined by calculating or obtaining rotational parameters through the control program of the drive component 30.

[0127] Please seeFigure 8 , Figure 8 This is a flowchart of a driving method for a display device according to another embodiment of this application. In some optional embodiments, step S1 of providing the display device 100 further includes:

[0128] S11, the drive assembly 30 includes a rotating shaft 31, which is positioned at opposite ends of the display panel in the second direction Y when in the unfolded state.

[0129] S12. In the circumferential direction, there is a gap area 23 between the two opposite ends of the display panel 20;

[0130] Step S2, which involves driving the display panel 20 to move circumferentially, includes:

[0131] S23, drive the display panel 20 to reciprocate between the first preset position and the second preset position, so as to make the interval area 23 reciprocate between the rotation axis 31 in the circumferential direction.

[0132] Optionally, the display panel 20 may not be spliced, maintaining a structure with a gap 23 between its two ends. In this embodiment, the display panel 20 should reciprocate between multiple preset positions, and during the movement, the gap 23 should remain on the back side of the support assembly 10. Specifically, the drive assembly 30 may include two rotating shafts 31 disposed at both ends of the support assembly 10 in the unfolded state. During the circumferential rotation of the display panel 20, the gap 23 can be positioned between the two rotating shafts 31 and reciprocate, preventing it from moving beyond the position of the rotating shafts 31.

[0133] Optionally, in addition to the main display area on the display side, i.e., the inner side after folding, the display device 100 may also have an auxiliary display area on the opposite back side. Similar to the driving method of the main display area described above, the same method can be used to select the preliminary auxiliary display area, and a preliminary light-emitting signal can be applied to the driving signal line therein. Depending on the position and size of the auxiliary display area and the rotation speed of the display panel 20, the coordinate information of the driving signal line in the preliminary auxiliary display area can be obtained or calculated using the same method. For details, please refer to the foregoing description, which will not be repeated here in this embodiment.

[0134] It is understood that the above description and details are merely exemplary and explanatory, and do not constitute a limitation on this application. Those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Thus, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A driving method for a display device, characterized in that, include: A display device is provided, the display device including a support component, a display panel and a driving component, the display panel being disposed around the support component, the display panel including multiple rows of driving signal lines extending along a first direction and spaced apart in the circumferential direction of the support component, the driving component being disposed on the support component, the driving component abutting against the display panel and capable of driving the display panel to move along the circumferential direction, the display device having a folded state and an unfolded state; Under preset conditions, the display panel is driven to move in the circumferential direction; A preliminary display area is selected on the display device. In the folded state, the coordinate information of the drive signal line of the display panel located in the preliminary display area during the current display stage is obtained. A pre-light emission signal is provided to the drive signal line located in the pre-display area according to the coordinate information; The step of selecting a pre-display area on the display device includes: Obtain the movement speed of the display panel in the circumferential direction, column a / second; Obtain the extension dimension b column of the pre-display area in the circumferential direction; Obtain the coordinate information of the drive signal line where the display panel is located in the pre-display area, from column m to column m+b. The step of providing a preliminary light-emitting signal to the driving signal line located in the preliminary display area according to the coordinate information includes: At the nth second, a preliminary light-emitting signal is provided to the drive signal lines from column m to column m+b; At the (n+1)th second, a pre-lighting signal is provided to the drive signal lines from column (m+a) to column (m+a+b).

2. The driving method according to claim 1, characterized in that, The step of driving the display panel to move in the circumferential direction under preset conditions includes: Obtain the folding information of the display device, and determine whether the folding information meets the preset standard. The folding information includes the duration of the display device in the folded state and / or the number of times the display device switches from the unfolded state to the folded state.

3. The driving method according to claim 1, characterized in that, The step of providing the display device further includes: The display panel is arranged in a ring shape with its ends connected. The step of driving the display panel to move in the circumferential direction includes: Drive the display panel to move unidirectionally along a preset direction; Alternatively, the step of driving the display panel to move in the circumferential direction includes: The display panel is driven to move back and forth between a first preset position and a second preset position.

4. The driving method according to claim 1, characterized in that, The step of providing the display device further includes: The driving component includes a rotating shaft, which, in the unfolded state, is respectively positioned at opposite ends of the display panel in a second direction; In the circumferential direction, there is a gap between the two opposite ends of the display panel; The step of driving the display panel to move in the circumferential direction includes: The display panel is driven to reciprocate between a first preset position and a second preset position, so as to cause the interval area to reciprocate between the rotation axis in the circumferential direction.

Images