CN113643610B

CN113643610B - Display device

Info

Publication number: CN113643610B
Application number: CN202010346321.2A
Authority: CN
Inventors: 杨鑫
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-04-27
Filing date: 2020-04-27
Publication date: 2022-11-15
Anticipated expiration: 2040-04-27
Also published as: CN113643610A

Abstract

The embodiment of the application provides a display device. The display device includes: the roller is arranged at one end of the first moving assembly and can rotate relative to the first moving assembly; one end of the flexible screen assembly is connected with the first moving assembly, and the other end of the flexible screen assembly is connected with the second moving assembly by bypassing the roller; the transmission assembly comprises a rack, a first gear meshed with the rack and a second gear meshed with the first gear, the rack is arranged on the first moving assembly, the first gear and the second gear are both arranged on the second moving assembly, and the second gear is fixedly connected with the roller; the rack is used for driving the first gear, the second gear and the roller to rotate, so that the first moving assembly and the second moving assembly move relatively in the direction of approaching to or separating from each other, and the flexible screen assembly moves around the roller. The embodiment of the application can improve the smoothness of the flexible screen assembly in the movement process.

Description

Display device

Technical Field

The application relates to the technical field of display, in particular to a display device.

Background

With the development of electronic technology, the degree of intelligence of display devices such as smart phones is increasing. The display device can display a picture through a display screen thereof.

Among them, the flexible display screen is spotlighted because it has characteristics of being foldable and bendable, and the entire size of the display device can be reduced by folding or bending the flexible display screen. However, the flexible display screen is easy to abut against the surrounding housing structure during the movement process to form friction force, so that the normal movement of the flexible display screen is influenced.

Disclosure of Invention

The embodiment of the application provides a display device, can improve the smooth and easy degree of flexible screen assembly motion in the motion process.

An embodiment of the present application provides a display device, including:

a first motion assembly;

a second motion assembly;

the roller is arranged at one end of the first motion assembly and can rotate relative to the first motion assembly;

one end of the flexible screen assembly is connected with the first moving assembly, and the other end of the flexible screen assembly bypasses the roller and is connected with the second moving assembly; and

the transmission assembly comprises a rack, a first gear meshed with the rack and a second gear meshed with the first gear, the rack is arranged on the first movement assembly, the first gear and the second gear are both arranged on the second movement assembly, and the second gear is fixedly connected with the roller;

the rack is used for driving the first gear, the second gear and the roller to rotate, so that the first motion assembly and the second motion assembly move relatively in the direction of approaching to or departing from each other, and the flexible screen assembly moves around the roller.

First motion subassembly and second motion subassembly can carry out relative motion, and first motion subassembly and second motion subassembly drive flexible screen motion in the motion process to and drive the gyro wheel and rotate. In the moving process of the flexible screen assembly, the transmission assembly can synchronously drive the rollers to rotate, so that the bending radius of the flexible screen assembly is prevented from being too large in the moving process. And prevent that flexible screen assembly from increasing and the structural component shell butt in the outside because of bend radius in the motion process to can improve the smooth and easy degree of flexible screen assembly in the motion process.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

For a more complete understanding of the present application and its advantages, reference is now made to the following descriptions taken in conjunction with the accompanying drawings, wherein like reference numerals represent like parts in the following description.

Fig. 1 is a first structural schematic diagram of a display device according to an embodiment of the present disclosure.

Fig. 2 is a second structural schematic diagram of a display device according to an embodiment of the present application.

Fig. 3 is a schematic diagram of a third structure of a display device according to an embodiment of the present disclosure.

Fig. 4 is a fourth structural schematic diagram of a display device according to an embodiment of the present application.

Fig. 5 is a side view of the display device shown in fig. 3.

Fig. 6 is a side view of the display device shown in fig. 4.

Fig. 7 is a sectional view of the display device shown in fig. 3.

Fig. 8 is a sectional view of the display device shown in fig. 4.

Fig. 9 is a schematic diagram illustrating a first motion assembly and a second motion assembly of a display device according to an embodiment of the present disclosure.

Fig. 10 is a schematic structural diagram of a limiting assembly in a display device according to an embodiment of the present application.

Figure 11 is an exploded view of the stop assembly shown in figure 10.

Fig. 12 is a schematic structural diagram illustrating a structure of a limiting assembly and a roller in a display device according to an embodiment of the present application.

Fig. 13 is a schematic structural diagram of a flexible screen assembly in a display device according to an embodiment of the present application.

Fig. 14 is a schematic structural diagram of a transmission assembly of a display device according to an embodiment of the present application.

Fig. 15 is an exploded view of the transmission assembly of fig. 14.

Fig. 16 is a schematic structural diagram illustrating a transmission assembly and a roller in a display device according to an embodiment of the present disclosure.

Fig. 17 is a schematic structural diagram of a first moving body in a display device according to an embodiment of the present application.

Fig. 18 is an exploded view of the first moving body shown in fig. 17.

Fig. 19 is a schematic view illustrating a roller, a limiting assembly and a first fixing plate of a display device according to an embodiment of the present disclosure.

Fig. 20 is a schematic structural diagram of a second moving body in a display device according to an embodiment of the present application.

Fig. 21 is an exploded view of the second moving body shown in fig. 20.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, are within the scope of the present application.

Referring to fig. 1 and fig. 2, fig. 1 is a first structural schematic diagram of a display device according to an embodiment of the present disclosure, and fig. 2 is a second structural schematic diagram of the display device according to the embodiment of the present disclosure. The display device 20 may include a first moving body 100, a second moving body 200, and a flexible screen assembly 300. The first and second moving

bodies

100 and 200 are slidably connected such that the first and second moving

bodies

100 and 200 are relatively moved in directions approaching or departing from each other, whereby switching between the expanded state and the collapsed state can be achieved. In this regard, the closed state may refer to fig. 1, that is, a state in which the first moving body 100 and the second moving body 200 are relatively moved in a direction to approach each other to be finally formed. In this case, the unfolded state may refer to fig. 2, which is a state in which the first moving body 100 and the second moving body 200 are relatively moved in a direction away from each other.

It should be noted that there may be a plurality of unfolding states of the first moving body 100 and the second moving body 200, such as that the maximum moving distance of the first moving body 100 and the second moving body 200 in the direction away from each other is H, and the first moving body 100 and the second moving body 200 may move away from each other in the folded state to reach the unfolding states of different distances by the same distance as H, and H. The state of the distance gradually becoming farther may be defined as a first developed state, a second developed state, a third developed state, and the like in this order.

It should be noted that, when the first moving body 100 and the second moving body 200 are in the first deployed state, such as the distance of the relative distancing movement of the first moving body 100 and the second moving body 200 in the first deployed state is a quarter H, the first moving body 100 and the second moving body 200 can still perform the distancing movement with respect to each other to reach the second deployed state, such as the distance of the relative distancing movement of the first moving body 100 and the second moving body 200 in the second deployed state is a half H.

It is to be understood that the one or more development states of the first moving body 100 and the second moving body 200 of the embodiment of the present application are merely illustrative and do not constitute a limitation on the development states of the first moving body 100 and the second moving body 200 of the embodiment of the present application.

One end of the flexible screen assembly 300 is fixedly connected to the first moving body 100, and the other end of the flexible screen assembly 300 is fixedly connected to the second moving body 200. The first and second moving

bodies

100 and 200 may support the flexible screen assembly 300. The first moving body 100 and the second moving body 200 may drive the flexible screen assembly 300 to move together or drive the flexible screen assembly 300 to move during the mutual movement, so that the length of the flexible screen assembly 300 may be adjusted, and the size of the display area of the display device may be changed.

When the first and second moving

bodies

100 and 200 are relatively moved in a direction to approach each other, the first and second moving

bodies

100 and 200 may drive a portion of the flexible screen assembly 300 to be received inside the display device 20, such as inside the first housing 115 of the display device 20. When the first and second moving

bodies

100 and 200 are relatively moved in a direction away from each other, the first and second moving

bodies

100 and 200 may drive a portion of the flexible screen assembly 300 to protrude from the inside of the display device 20.

Wherein, the first casing 115 may cover a circumference of the first moving body 100, and the second casing 230 may cover a circumference of the second moving body 200.

It should be noted that, during the movement of the flexible screen assembly 300, especially when the first moving body 100 and the second moving body 200 move relatively in the direction of approaching each other, the flexible screen assembly 300 may be folded, curled, and deformed by external force to abut against the first housing 115 of the display device 20, so as to generate friction force, which affects the smoothness of the flexible screen assembly 300 during the movement. It should be noted that the bending radius of the flexible panel assembly 300 may increase and become larger due to deformation of the flexible panel assembly 300 such as curling and folding during the movement process, which is not favorable for the light and thin design of the display device 20. It should be further noted that the flexible screen assembly 300 may also be susceptible to damage to the flexible screen assembly 300 and reduce the lifetime of the flexible screen assembly 300 due to long term friction with the first housing 115 of the display device 20.

Based on this, in the moving process of the first moving body 100 and the second moving body 200 according to the embodiment of the present application, the bending portion of the flexible screen assembly 300 may be limited by a limiting assembly to limit the bending radius of the flexible screen assembly 300 in the moving process, that is, to limit the space of the flexible screen assembly 300 at the bending portion, so as to keep the flexible screen assembly 300 from additionally enlarging the bending radius, which is beneficial to the lightness and thinness of the display device 20. And the limiting assembly can prevent the flexible screen assembly 300 from abutting against an outer structure, such as the first housing 115, to form a friction force during the movement process, so that the movement smoothness of the flexible screen assembly 300 is improved, and the service life of the flexible screen assembly 300 is prolonged.

Referring to fig. 3 to 9, fig. 3 is a third structural schematic diagram of a display device according to an embodiment of the present application, fig. 4 is a fourth structural schematic diagram of the display device according to the embodiment of the present application, fig. 5 is a side view of the display device shown in fig. 3, fig. 6 is a side view of the display device shown in fig. 4, fig. 7 is a cross-sectional view of the display device shown in fig. 3, fig. 8 is a cross-sectional view of the display device shown in fig. 4, and fig. 9 is a schematic diagram of a first moving body and a second moving body in the display device according to the embodiment of the present application.

The display device 20 may further include a roller 400, the roller 400 may be disposed at one end of the first moving body 100, and the first moving body 100 may be provided with an escape space to install the roller 400. The roller 400 may be pivotally connected to the first moving body 100 such that the roller 400 can roll, or rotate, relative to the first moving body 100.

One end of the flexible screen assembly 300 is fixedly connected to the first moving body 100, and the other end of the flexible screen assembly 300 is fixedly connected to the second moving body 200 by bypassing the roller 400. That is, the flexible screen assembly 300 may pass around the roller 400 to connect the first moving body 100 and the second moving body 200, so that the flexible screen assembly 300 may rotate the roller 400 in a moving state.

The display device 20 may further include a limiting assembly 500, please refer to fig. 10 and 11, fig. 10 is a schematic structural diagram of the limiting assembly in the display device according to an embodiment of the present application, and fig. 11 is an exploded view of the limiting assembly shown in fig. 10. The limiting member 500 may be disposed at one end of the first moving body 100, and the limiting member 500 and the roller 400 are disposed at the same end of the first moving body 100. Referring to fig. 12, fig. 12 is a schematic view illustrating a structure of a limiting assembly and a roller in a display device according to an embodiment of the present disclosure, in which the limiting assembly 500 may be disposed on an outer side of the roller 400, so that a gap 201 is defined between the limiting assembly 500 and the roller 400 to receive a portion of the flexible screen assembly 300, i.e., a portion of the flexible screen assembly is located between the limiting assembly 500 and the roller 400.

Therefore, the embodiment of the present application can limit the bending portion of the flexible screen assembly 300 (or the portion around the roller 400) by the cooperation of the limiting assembly 500 and the roller 400, so as to limit the bending radius of the flexible screen assembly 300 during the movement process, that is, to limit the space of the flexible screen assembly 300 at the bending portion, so as to keep the flexible screen assembly 300 not to enlarge the bending radius additionally, which is beneficial to the lightness and thinness of the display device 20. And the cooperation of the limiting assembly 500 and the roller 400 can prevent the flexible screen assembly 300 from abutting against an outer structure, such as the first housing 115, during the movement process to form a friction force, thereby improving the movement smoothness of the flexible screen assembly 300 and prolonging the service life of the flexible screen assembly 300.

In the actual movement process of the first moving body 100 and the second moving body 200, when the first moving body 100 moves relatively in the direction away from each other, the flexible screen assembly 300 is forced to follow the first moving body 100 and the second moving body 200 to move relatively in the direction away from each other, so as to display the portion received in the first moving body 100, so as to increase the display area of the flexible screen assembly 300.

It is understood that, when the flexible panel assembly 300 moves following the relative movement of the first moving body 100 in the direction away from each other, the flexible panel assembly 300 moves closely to the roller 400, and the roller 400 rotates following the movement of the flexible panel assembly 300. In this process, the acting force applied to the flexible screen assembly 300 is applied to the roller 400 to drive the roller 400 to rotate, so that the flexible screen assembly 300 does not generate deformation such as curling and bending during movement, i.e. the bending radius is not increased, and the flexible screen assembly does not abut against an outer structure such as the first housing 115 to generate friction. At this time, the limiting assembly 500 may limit the flexible screen assembly 300, and the limiting assembly 500 may not limit the flexible screen assembly. That is, when the flexible screen assembly 300 moves relatively in the direction away from each other following the first moving body 100, the limiting assembly 500 may be attached to the flexible screen assembly 300, and the limiting assembly 500 may not be attached to the flexible screen assembly 300. The spacing between the spacing assembly 500 and the roller 400 may be designed to be slightly larger than the thickness of the flexible screen assembly 300.

In the actual movement process of the first moving body 100 and the second moving body 200, when the first moving body 100 moves relatively in the direction of approaching to each other, the flexible screen assembly 300 is forced to follow the first moving body 100 and the second moving body 200 to move relatively in the direction of departing from each other, so that a portion extending outside the first moving body 100 is accommodated in the first moving body 100, thereby reducing the display area of the flexible screen assembly 300.

It is understood that, when the flexible screen assembly 300 moves following the relative movement of the first moving body 100 in the direction approaching each other, the flexible screen assembly 300 still moves in close contact with the roller 400, and the roller 400 rotates following the movement of the flexible screen assembly 300. In the process, a part of the force applied to the flexible screen assembly 300 is applied to the roller 400 to rotate the roller 400. Another portion of the force applied to the flexible screen assembly 300 is likely to cause the flexible screen assembly to deform, such as by curling or bending, to increase the bend radius of the flexible screen assembly 300, resulting in friction between the flexible screen assembly 300 and the outside structure, such as the first housing 115. At this time, the limiting assembly 500 may limit the flexible screen assembly 300, for example, another part of the acting force applied to the flexible screen assembly 300 acts on the limiting assembly 500, so as to limit the moving space of the flexible screen assembly 300 at the position of the roller 400, that is, limit the bending radius of the flexible screen assembly 300, and avoid the flexible screen assembly 300 from abutting against an outside structure such as the first housing 115 to generate a friction force.

It should be noted that, in the embodiment of the present application, the flexible screen assembly 300 moves along with the relative movement of the first moving body 100 and the second moving body 200 in the direction away from each other, and the flexible screen assembly 300 moves along with the relative movement of the first moving body 100 and the second moving body 200 in the direction approaching each other, and both the flexible screen assembly 300 and the limiting assembly 500 move along with the roller 400.

It should be further noted that, when the flexible screen assembly 300 of the embodiment of the present application moves along with the relative movement of the first moving body 100 and the second moving body 200 in the direction away from each other, the flexible screen assembly 300 will move while being attached to the roller 400, but not attached to the limiting assembly 500. The flexible screen assembly 300 moves along with the relative movement of the first moving body 100 and the second moving body 200 in the direction of approaching each other, and the flexible screen assembly 300 moves while being attached to the roller 400 and the limiting assembly 500. This manner may still increase the bending radius of the flexible screen assembly 300 when following the relative movement of the first moving body 100 and the second moving body 200 in the direction approaching each other, but may still reduce the bending radius of the flexible screen assembly 300 when following the relative movement of the first moving body 100 and the second moving body 200 in the direction approaching each other to some extent.

Here, the limiting assembly 500 may be designed to be rotatable with respect to the first moving body, such as the limiting assembly 500 is rotatably fixed on the first moving body 100 by using a pin or the like. Therefore, even if the flexible screen assembly 300 is attached to the limiting assembly 500 during the movement process, the movement of the flexible screen assembly 300 is smoother because the limiting assembly 500 can rotate along with the movement of the flexible screen assembly 300. Of course, the limiting assembly 500 may also be designed not to rotate relative to the first moving body 100 and directly and fixedly connected to the first moving body 100, and at this time, a portion of the first moving body 100 close to the flexible screen assembly 300 may be designed to be a smooth arc structure, so that when the flexible screen assembly 300 is attached to the limiting assembly 500 to move, the friction force is reduced.

In order to reduce the friction force between the limiting assembly 500 and the flexible screen assembly 300 in the fitting process, the embodiment of the application can reduce the fitting area between the limiting assembly 500 and the flexible screen assembly 300. Such as the spacing assembly 500, may include a spacing shaft 510 and at least one spacing sleeve 520. The limiting shaft 510 is disposed at one end of the first moving body 100, i.e., at the same end as the roller 400. The stopper shaft 510 is fixed to the first moving body 100 and may not move. The at least one position-limiting sleeve 520 may be one position-limiting sleeve 520, or may be a plurality of position-limiting sleeves, such as two position-limiting sleeves 520. The limiting sleeve 520 is sleeved on the limiting shaft 510, and the limiting sleeve 520 sleeved on the limiting shaft 510 is only sleeved on a partial region of the limiting shaft 510, i.e. other parts of the limiting shaft 510 are not sleeved by the limiting sleeve 520 and are exposed outside. The limiting sleeve 520 is sleeved on the limiting shaft 510 and can rotate relative to the limiting shaft 510.

The number of the limiting sleeves 520 may be two, one of the two limiting sleeves 520 is sleeved on one end of the limiting shaft 510, and the other of the two limiting sleeves 520 is sleeved on the other end of the limiting shaft 510. That is, one of the two position-limiting bushes 520 is positioned at one side of the first moving body 100, and the other of the two position-limiting bushes 520 is positioned at the other side of the first moving body 100.

In order to avoid the influence of the size of the position-limiting sleeve 520, such as the diameter, on the size of the whole display device 20, the position-limiting sleeve 520 may be provided with a groove structure, such as the slot 512, on the position-limiting shaft 510, and the position-limiting sleeve 520 may be provided at the position of the groove structure, such as the slot 512, so that the outer periphery of the position-limiting sleeve 520 slightly protrudes out of the position-limiting shaft 510. The size, such as the diameter, of the stop collar 520 and the size, such as the diameter, of the stop shaft 510 may be designed to be smaller than the size, such as the diameter, of the roller 400.

Therefore, when the flexible screen assembly 300 according to the embodiment of the present application moves along with the relative movement of the first moving body 100 and the second moving body 200, the flexible screen assembly 300 may be attached to the position-limiting sleeve 520, so as to drive the position-limiting sleeve 520 to rotate around the position-limiting shaft 510. Therefore, the contact area between the flexible screen assembly 300 and the limiting assembly 500 can be greatly reduced, the friction force is reduced, and the motion smoothness of the flexible screen assembly 300 is improved.

In order to maintain the retention assembly 500, such as the retention sleeve 520, to always provide effective retention for the flexible screen assembly 300, or in order to maintain the retention assembly 500, such as the retention sleeve 520, to always fit the flexible screen assembly 300, some embodiments of the present application may design at least one elastic member 530. The at least one elastic member 530 may be one or more, such as two elastic members 530. The elastic member 530 abuts against the limiting shaft 510 and the first moving body 100 to form an elastic force for pressing the limiting shaft 510 toward the roller 400. The elastic member 530 may be an elastic structure such as a torsion spring, a spring, etc. Taking the elastic member 530 as the torsion spring 530 for example, one end of the limiting shaft 510 is fixedly connected to one side of the first moving body through the torsion spring 530, and the other end of the limiting shaft 510 is fixedly connected to the other side of the first moving body 100 through the torsion spring 530. For example, one torsion spring 530 is sleeved on one end of the limiting shaft 510, and the torsion spring 530 is abutted against one side of the first moving body 100, and the other torsion spring 530 is sleeved on the other end of the limiting shaft 510, and the other torsion spring 530 is abutted against the other side of the first moving body 100. And both the torsion springs 530 are abutted to the outside of one end of the first moving body 100, so that the torsion springs 530 can form an elastic force toward the roller 400 by abutting or abutting with the first moving body 100, the elastic force acts on the limit shaft 510, and the limit shaft 510 transmits the acting force to the limit sleeve 520. Therefore, the two torsion springs 530 can maintain the elastic force of the position limiting sleeve 520 towards the direction of the roller 400, so as to ensure that the position limiting sleeve 520 can always generate the pressing force with the flexible screen assembly 300.

Referring to fig. 13, fig. 13 is a schematic structural diagram of a flexible screen assembly in a display device according to an embodiment of the present disclosure, where the flexible screen assembly 300 may include a flexible screen 320 and a supporting sheet 340 disposed on a non-display surface of the flexible screen 320, and another surface of the supporting sheet 340 abuts against the roller 400. The supporting structure may be designed at the position where the flexible screen assembly 300 abuts against the limiting assembly 500, such as the limiting sleeve 520, instead of the flexible screen structure, so as to prevent the flexible screen 320 from partially abutting against the limiting sleeve 520, and effectively protect the flexible screen 320.

Such as: the size of the flexible screen 320 is smaller than that of the supporting sheet 340, when the non-display surface of the flexible screen 320 is fixed to the supporting sheet 340, an abutting portion 342 may be formed at the periphery of the supporting sheet 340, and the abutting portion 342 may abut against the position-limiting sleeve 520 of the position-limiting assembly 500, or a portion of the supporting sheet 340 is limited between the position-limiting sleeve 520 and the roller 400. The flexible screen 320 of the flexible screen assembly 300 may thus be captured between the two stop collars 520, or the flexible screen 320 may be captured between the stop shaft 510 and the roller 400 without abutting against the stop collars 520. The supporting sheet 340 may be made of wear-resistant materials such as metal, so that the supporting sheet 340 abuts against the position-limiting sleeve 520, thereby protecting the flexible screen 320 and having wear-resistant characteristics.

It should be noted that, in some other embodiments of the present application, a portion of the flexible screen 320 and a portion of the supporting sheet 340 may be directly limited between the limiting shaft 510 and the roller 400. Or the flexible screen 320, directly abuts a stop assembly 500, such as stop collar 520.

In other embodiments, to reduce damage to flexible screen assembly 300 due to direct abutment of retainer assembly 500, such as retainer sleeve 520, against flexible screen 320 of flexible screen assembly 300, an additional protective layer may be provided where flexible screen 320 of flexible screen assembly 300 abuts retainer assembly 500, such as retainer sleeve 520.

Referring to fig. 14 and 15, fig. 14 is a schematic structural diagram of a transmission assembly of a display device according to an embodiment of the present disclosure, and fig. 15 is an exploded view of the transmission assembly shown in fig. 14. The display device 20 may further include a driving assembly such as a driving assembly 600, and the driving assembly 600 is used to drive the first moving body 100 and the second moving body 200 to move. A part of the transmission assembly 600 may be provided to the first moving body 100, and another part of the transmission assembly 600 may be provided to the second moving body 200. Such as the driving assembly 600 including the first gear 610, the second gear 620, and the driving belt 630 provided to the first moving body 100, and the driving assembly 600 including the rack 640 provided to the second moving body 200. The rack 640 may be fixedly connected to the second moving body 200 by screws, such as a plurality of screw holes 644 are formed in the rack 640, so that the screws are screwed into the screw holes 644 to achieve the fixed connection with the second moving body 200.

One surface of the rack 640 is provided with teeth 642 that engage with the first gear 610. The rack 640 is engaged with the first gear 610, the first gear 610 is engaged with the belt 630, the belt 630 is engaged with the second gear 620, and the second gear 620 is fixedly connected with the roller 400. The rack 640 can drive the first gear 610 to rotate, the first gear 610 rotates to drive the belt 630 to move, and the belt 630 moves to drive the second gear 620 and the roller 400 to rotate together. Thereby achieving the transmission of the first and second moving

bodies

100 and 200 such that the first and second moving

bodies

100 and 200 are relatively moved in a direction approaching or departing from each other and the flexible screen assembly 300 is moved around the roller 400.

It will be appreciated that the inner surface of the belt 630 is provided with teeth 632 that mesh with the first gear 610 and the second gear 620.

It should be noted that the belt 630 defined in the embodiments of the present application may be replaced by other components, such as one or more third gears instead of the belt 630. Or a gear set may be used between the first gear 610 and the second gear 620 instead of the belt 630. It should be noted that other components may be used instead of the belt 630, which is not illustrated here.

Referring to fig. 16, fig. 16 is a schematic structural diagram illustrating a transmission assembly and a roller of a display device according to an embodiment of the present disclosure. In some embodiments of the present application, the transmission assembly 600 may further drive the roller 400 to rotate when transmitting the relative movement in the direction in which the first moving body 100 and the second moving body 200 move away from or close to each other, so that the acting forces of the components are synchronized in the movement process, and the transmission effect is better. The second gear 620 may be fixedly coupled with the roller 400. For example, a fixing hole 622 is formed in the second gear 620, the rotating shaft 420 is disposed at the end of the roller 400, and the rotating shaft 420 can be inserted into the fixing hole 622 to fixedly connect the roller 400 and the second gear 620. It should be noted that the fixing manner of the second gear 620 and the roller 400 is not limited to this, for example, a rotating shaft is provided on the second gear 620, a fixing hole is provided on the roller 400, and the rotating shaft of the second gear 620 is inserted into the fixing hole provided on the roller 400 to achieve the fixed connection.

Therefore, the driving assembly 600 according to the embodiment of the present invention can drive the first gear 610 to rotate through the rack 640, and then drive the second gear 620 and the roller 400 to rotate through the belt 630, and the flexible screen assembly 300 fixed on the first moving body 100 and the second moving body 200 is in a limited state through the mutual cooperation of the rack 640, the first gear 610, the second gear 620 and the belt 630.

Or the rack 640, the first gear 610, the second gear 620 and the transmission belt 630 are mutually matched to enable the flexible screen assembly 300 fixed on the first moving body 100 and the second moving body 200 to be in a tensioned state, and in the moving process of the flexible screen assembly 300, deformation such as large winding and bending is not easy to occur, namely, the rack 640, the first gear 610, the second gear 620 and the transmission belt 630 are mutually matched to always exert tensioning force on the flexible screen assembly 300 in the moving process of the flexible screen assembly 300, so that the flexible screen assembly 300 is prevented from generating large deformation. Therefore, the limiting assembly 500 combined with the display device 20 has a better limiting effect on the flexible screen assembly 300.

Of course, it should be noted that the display device 20 may adopt the transmission assembly 600 defined in the embodiment of the present application, and the limiting assembly 500 is not provided.

Here, the rack gear 640 may be disposed at a side of the second moving body 200, such as two rack gears 640, one of which is disposed at one side of the second moving body 200 and the other of which is disposed at the other side of the second moving body 200. Correspondingly, there may be two first gears 610, two second gears 620, and two belts 630. One of the first gears 610, one of the second gears 620, and one of the belts 630 are disposed at one side of the first moving body 100, and the other of the first gears 610, the other of the second gears 620, and the other of the belts 630 are disposed at the other side of the first moving body. A first gear 610 on the same side of the display device 20 engages a rack 640, a first gear 610 engages a belt 630, and a belt 630 engages a second gear 620. One second gear 620 is fixedly connected to one end of the roller 400, and the other second gear 620 is fixedly connected to the other end of the roller 400.

Referring to fig. 17 and 18, fig. 17 is a schematic structural view of a first moving body in a display device according to an embodiment of the present disclosure, fig. 18 is an exploded view of the first moving body shown in fig. 17, a first moving body 100 may include a body 110, a first fixing plate 120 and a second fixing plate 130, the first fixing plate 120 is disposed on one side of the body 110, and the second fixing plate 130 is disposed on the other side of the body 110. The first fixing plate 120, the second fixing plate 130 and the body 110 may be integrally formed, such as machining, injection molding, etc. The first fixing plate 120 may also be fixed to the body 110 by other methods, such as screwing, welding, inserting, etc. The second fixing plate 130 may also be fixed to the body 110 by other methods, such as screwing, welding, inserting, etc. Screw holes 123 may be opened in the first fixing plate 120 to fix the first fixing plate 120 to one side of the body 110 by screws, and screw holes 133 may be opened in the second fixing plate 130 to fix the second fixing plate 130 to the other side of the body 110 by screws.

Referring to fig. 19, fig. 19 is a schematic view illustrating a roller, a limiting assembly and a first fixing plate of a display device according to an embodiment of the present disclosure, wherein the roller 400 may be disposed on the first fixing plate 120 and the second fixing plate 130, and the roller 400 is disposed between the first fixing plate 120 and the second fixing plate 130. A through hole 121, such as a round hole, may be formed in the first fixing plate 120 to receive an end of the roller 400, or a through hole 121, such as a round hole, may be formed in the first fixing plate 120 to receive a portion of the roller 400 fixedly connected to the second gear 620. And a through hole 131, such as a circular hole, may be formed in the second fixing plate 130 to receive the other end of the roller 400, or a through hole 131, such as a circular hole, may be formed in the second fixing plate 130 to receive a portion of the roller 400 fixedly connected to the second gear 620.

It should be noted that, when the display device 20 includes the limiting assembly 500, the limiting assembly 500 may also be disposed on the first fixing plate 120 and the second fixing plate 130. One end of the spacing shaft 510 and one of the elastic members 530, such as the spacing assembly 500, are disposed on the first fixing plate 120, and the other end of the spacing shaft 510 and the other elastic member 530 are disposed on the second fixing plate 130. A through hole 122 such as a kidney-shaped hole may be formed in the first fixing plate 120 to receive one end of the stopper shaft 510, and a through hole 132 such as a kidney-shaped hole may be formed in the second fixing plate 130 to receive the other end of the stopper shaft 510. And a limiting groove 125 communicating with the waist-shaped hole may be formed on the first fixing plate 120 to receive one elastic member, and a limiting groove communicating with the waist-shaped hole may be formed on the second fixing plate 130 to receive another elastic member. The position of limiting shaft 510 can be adjusted by limiting shaft 510 in the waist-shaped hole in the embodiment of the application, and when the position is needed, the thicknesses of different flexible screen components are different, so that the position of limiting shaft 510 can be adjusted according to the thicknesses of different flexible screen components.

It should be noted that, when the display device 20 includes the transmission assembly 600, the first gear 610, the second gear 620 and the transmission belt 630 in the transmission assembly 600 are disposed on the first fixing plate 120 and the second fixing plate 130. Such as the first fixing plate 120 provided with a first gear 610, a second gear 620 and a belt 630, and the second fixing plate 130 provided with a first gear 610, a second gear 620 and a belt 630.

Each first gear 610 may include a first tooth portion 612, a second tooth portion 614, and a first connection portion 616. The rotating shaft 420 of one end of the roller 400 is fixedly connected with the fixing hole 622 of one second gear 620, and the rotating shaft of the other end of the roller 400 is fixedly connected with the fixing hole of the other second gear 620. The first fixing plate 120 is further provided with a through hole 126, the through hole 126 is provided with a first connecting portion 616 of a first gear 610, a first tooth portion 612 of the first gear 610 is located on an inner surface of the first fixing plate 120 and is engaged with a rack gear 640, a second tooth portion 614 of the first gear 610 is located on an outer surface of the first fixing plate 120 and is engaged with a driving belt 630, and a second gear 620 is located on an outer surface of the first fixing plate 120 and is engaged with the driving belt 630.

The second fixing plate 130 is further provided with a through hole 136, the through hole 136 is provided with a first connecting portion of another first gear 610, a first tooth portion of the another first gear 610 is located on an inner surface of the second fixing plate 130 and is engaged with another rack 640, a second tooth portion of the another first gear 610 is located on an outer surface of the second fixing plate 130 and is engaged with another driving belt 630, and the another second gear 620 is located on an outer surface of the second fixing plate 130 and is engaged with the driving belt 630.

It should be noted that, in some other embodiments, only one side or other positions of the display device 20 may be provided with a rack 640, a first gear 610, a second gear 620 and a transmission belt 630.

The body 110 may include a first support plate 111, a second support plate 112, and a main body plate 113, wherein the first support plate 111, the main body plate 113, and the second support plate 112 are sequentially stacked, the first support plate 111 is disposed on one side of the main body plate 113, and the second support plate 112 is disposed on the other side of the main body plate 113. The first support plate 111, the second support plate 112, and the main body plate 113 may be integrally formed, such as machined, injection molded, or the like. The first supporting plate 111 and the main body plate 113 may also be fixed by other methods, such as screwing, welding, plugging, etc. the screws 700 may be fixed by other methods. The second supporting plate 112 and the main body plate 113 can also be fixed by other methods, such as screwing, welding, inserting and the like of the screw 700. When the first supporting plate 111 and the second supporting plate 112 are fixed on two sides of the main body plate 113, a receiving cavity may be formed between the first supporting plate 111 and the second supporting plate 112 to receive a portion of the second moving body 200.

It should be noted that, the first moving body 100 according to the embodiment of the present application may further include a rear cover 114, and the rear cover 114 may be disposed outside the second support plate 112. That is, the first support plate 111, the main body plate 113, the second support plate 112, and the rear cover 114 are sequentially stacked.

The body plate 113 may be understood to have three portions, such as including a body portion 1133, a first side portion 1131, and a second side portion 1132, the first side portion 1131 and the second side portion 1132 being connected to both sides of the body portion 1133. The first and

second side portions

1131 and 1132 are spaced apart from each other, and when the first and

second support plates

111 and 112 are fixed to the main body plate 113, a receiving cavity is formed between the first and second side portions to receive a portion of the second moving body 200. The body 1133 is disposed near the roller 400. The first fixing plate 120 is disposed on the first side 1131 of the main body plate 113, and the second fixing plate 130 is disposed on the second side 1132 of the main body plate 113.

It should be noted that the first casing 115 of the first moving body 100 according to the embodiment of the present application may be covered on the outer side of the roller 400 and the limiting assembly 500. The first moving body 100 of the embodiment of the present application may further include two covers 116, one cover 116 being located at one side of the first moving body 100, and the other cover 116 being located at the other side of the first moving body 100. An outer cover 116 may be disposed on the first fixing plate 120, such as screw holes 124 formed on the first fixing plate 120, for fixing the outer cover 116 to the first fixing plate 120 by screws. Another outer cover 116 may be disposed on the second fixing plate 130, such as screw holes 134 formed on the second fixing plate 140, so as to fix the outer cover 116 to the second fixing plate 130 by screws.

Referring to fig. 20 and 21, fig. 20 is a schematic structural diagram of a second moving body in a display device according to an embodiment of the present application, fig. 21 is an exploded view of the second moving body shown in fig. 20, and the second moving body 200 may include a bearing plate 210 and a third supporting plate 220. The third supporting plate 220 may be fixed on the loading plate 210, such as by means of screws. Wherein the rack 640 may be fixed on the carrier plate 210, such as with a screw passing through a screw hole 644 of the rack 640, to fix the rack 640 on the carrier plate 210. It should be noted that the second housing 230 of the second moving body 200 according to the embodiment of the present invention can be covered on one side and the lateral side of the third supporting plate 220 and the loading plate 210.

In order to increase the stability of the first moving body 100 and the second moving body 200 during the mutual movement, a guide structure may be provided between the first moving body 100 and the second moving body 200. Such as the first moving body 100 provided with the guide 1112 and the second moving body 200 provided with the guide groove 221, the guide 1112 can move in the guide groove 221. The number of the guide grooves 221 may be one, two or more, and the number of the guide members 1112 is the same as the number of the guide grooves 221. It should be noted that in the embodiment of the present application, a spacing plate 222 is formed between two adjacent guide grooves 221, a gap 1113 is formed between two adjacent guide members 1112, and the spacing plate 222 of the second moving body 200 can move in the gap 1113. In some embodiments, a rib 223 is disposed on a sidewall of the guide groove 221 of the second moving body 200, and the rib 223 may further limit the position of the guide 1112.

Wherein the guide groove 221 may be provided on the third support plate 220. The guide 1112 may be provided on the first support plate 111.

It is also possible to provide the guide groove in the first support plate 111 and the guide in the third support plate 220.

In order to ensure the smoothness of the flexible screen assembly 300 during the movement process, the flexible screen assembly 300 is prevented from being caught at the roller 400. Some embodiments of the present application may design the roller 400 as a stepped shaft structure, such as the roller 400 provided with a plurality of spaced grooves 410. It is understood that the groove 410 may be disposed around one turn of the roller 400. One end of the body 110 is adjacent to the roller 400, such as a plurality of protrusions 117 are disposed at the position of the body 110 adjacent to the roller 400, a protrusion 117 is disposed in a groove 410, and the protrusion 117 is not in contact with the outer surface of the roller 400. The number of the bumps 117 may be equal to the number of the grooves 410. It should be noted that the protrusion 117 may be composed of two parts, such as the protrusion 117 includes a first protrusion 1111 and a second protrusion 1121, the first protrusion 1111 may be disposed at an end of the first support plate 111, and the second protrusion 1121 may be disposed at an end of the second support plate 112. The first protrusion 1111 and the second protrusion 1121 are both located in the recess 410, and a main portion 1113 is spaced between the first protrusion 1111 and the second protrusion 1121.

The motion of the driving assembly 600 can be driven manually. The force in the first direction may be applied to the rack 640, such as by applying a force in the first direction to the first moving body 100 and the second moving body 200, the rack 640 moves to drive the first gear 610 to rotate in a first preset direction, such as clockwise, and then the second gear 620 and the roller 400 are driven to rotate by the driving belt 630, so that the first moving body 100 and the second moving body 200 move in a direction away from each other, and the flexible screen assembly 300 moves to increase the display area. For another example, when a force in a second direction is applied to the first moving body 100 and the second moving body 200, the force in the second direction may be applied to the rack 640, the rack 640 moves to drive the first gear 610 to rotate in a second predetermined direction, such as counterclockwise, and further drives the second gear 620 and the roller 400 to rotate through the belt 630, so that the first moving body 100 and the second moving body 200 move in a direction approaching each other, and the flexible screen assembly 300 moves to reduce the display area of the flexible screen assembly 300.

The transmission assembly 600 may also be electrically driven to drive the first moving body 100 and the second moving body 200 to move relatively. If the driving assembly 600 is electrically driven, the display device 20 may further include a driving mechanism, such as a motor, a gear set, and the like.

The following description shows, for example, the device 20 in which the first moving body 100 and the second moving body 200 move relative to each other to move the flexible screen assembly 300 and change the display area of the flexible screen assembly 300.

Referring to fig. 1 to 9, fig. 1, fig. 3, fig. 5, fig. 7 and fig. 9 schematically show the first moving body 100 and the second moving body 200 of the display device 20 in a folded state. The first and second moving

bodies

100 and 200 may be manually driven to move away from each other to be switched to the unfolded state, and fig. 2, 4, 6, and 8 illustrate the first and second moving

bodies

100 and 200 of the display device 20 in the unfolded state.

For example, the process of switching the first and second moving

bodies

100 and 200 in the collapsed state to the expanded state is as follows: the user holds the first moving body 100, or the first housing 115 covering the first moving body 100, with one hand. The other hand holds the second moving body 200, or the second housing 230 whose cover is provided outside the second moving body 200.

Then, both hands are pulled in the moving direction of the display device 20 and in the direction toward the outside from the inside of the display device 20. At this time, the first moving body 100 and the second moving body 200 are moved away from each other as seen from the outside of the display device 20, and a portion of the flexible screen assembly 300 originally received inside the display device 20 is pulled out, so that the display area of the flexible screen assembly 300 is gradually increased.

At this time, in the display device 20, the user applies a force to the first moving body 100 and the second moving body 200, applies a force to the rack 640 through the first moving body 100, and applies a force to the first gear 610 through the second moving body 200. Thereby causing the rack 640 and the first gear 610 to generate a driving motion with respect to each other to move the belt 630, thereby driving the second gear 620 and the roller 400 to rotate together and simultaneously driving the flexible screen assembly 300 to move around the roller 400. Thereby achieving synchronization of the forces and reducing the amount of folding or bending of flexible screen assembly 300 during movement. If the display device 20 includes the spacing assembly 500, the flexible screen assembly 300 is moved to be spaced by the spacing assembly 500, such as to rotate the spacing sleeve 520 of the spacing assembly 500.

For example, the process of switching the first moving body 100 and the second moving body 200 in the folded state to the folded state is as follows: the user holds the first moving body 100 with one hand, or the first housing 115 whose cover is provided outside the first moving body 100. The other hand holds the second moving body 200, or the second housing 230 whose cover is provided outside the second moving body 200.

Then, both hands are pushed in the moving direction of the display device 20 and in the direction of the outside of the display device 20 toward the inside. At this time, the first and second moving

bodies

100 and 200 can be seen from the outside of the display device 20 while performing the movement close to each other, and a portion of the flexible screen assembly 300 originally exposed outside of the display device 20 is received inside the display device 20, so that the display area of the flexible screen assembly 300 is gradually reduced.

At this time, in the display device 20, the user applies an urging force to the first moving body 100 and the second moving body 200, applies an urging force to the rack 640 via the first moving body 100, and applies an urging force to the first gear 610 via the second moving body 200. Thereby causing the rack 640 and the first gear 610 to generate a driving motion with respect to each other to move the belt 630, thereby driving the second gear 620 and the roller 400 to rotate together and simultaneously driving the flexible screen assembly 300 to move around the roller 400. Thereby achieving synchronization of the forces and reducing the likelihood of folding or bending of flexible screen assembly 300 during movement. If the display device 20 includes the spacing assembly 500, the flexible screen assembly 300 is moved to be spaced by the spacing assembly 500, such as to rotate the spacing sleeve 520 of the spacing assembly 500.

Therefore, in the embodiment of the present invention, no matter the first moving body 100 and the second moving body 200 perform approaching movement or moving away, one end of the flexible screen assembly 300 is always fixedly connected to the second moving body 200, and the other end of the flexible screen assembly 300 is always fixedly connected to the first moving body, so that the relative acting force, or tension, of the two ends of the flexible screen assembly 300 can be maintained through the cooperation of the rack 640, the first gear 610, the second rack 620 and the transmission belt 630. The possibility that the flexible screen assembly 300 is curled or folded in the moving process is reduced, the moving smoothness of the flexible screen assembly 300 is improved, the flexible screen assembly 300 is protected, and the service life of the flexible screen assembly is prolonged. If combined with the stop assembly 500 of some embodiments of the present application, the flexible screen assembly 300 may be prevented from curling or folding during movement.

It is noted that, in some embodiments, the display device 20 of the present application may not be provided with a housing such as the first housing and the second housing.

The configuration of the display device 20 of the embodiment of the present application is not limited to the above, and the display device 20 may further include a main board, a battery, and the like.

It should be noted that the display device defined in the embodiments of the present application is a device including the above flexible screen assembly, the first moving body and the second moving body, or an apparatus, which may be a mobile phone, a desktop computer, a notebook, a tablet computer, a wristwatch apparatus, a television, a media player, a computer monitor, and other apparatuses having a display function.

The first moving body 100, the second moving body 100, the roller 400 assembled on the first moving body 100, and the limiting assembly 500 defined in the embodiments of the present application may constitute a carrying device, which may carry the flexible screen assembly 300 as described above. It will be appreciated that the carrier may also carry other devices, which are not limited to carrying the flexible screen assembly 300.

The first moving body 100, the second moving body 100, and the roller 400 and the driving assembly 600 assembled on the first moving body 100 as defined in the embodiments of the present application may constitute a carrying device, which may carry the flexible screen assembly 300 as described above. It will be appreciated that the carrier may also carry other devices, which are not limited to carrying the flexible screen assembly 300.

The display device provided in the embodiments of the present application is described in detail above, and the principles and embodiments of the present application are described herein by applying specific examples, and the description of the embodiments is only used to help understanding the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A display device, comprising:

a first motion assembly;

a second motion assembly;

the roller is arranged at one end of the first moving assembly and can rotate relative to the first moving assembly;

the transmission assembly comprises a rack, a first gear meshed with the rack, a transmission belt meshed with the first gear, and a second gear meshed with the transmission belt, the rack is arranged on the first movement assembly, the first gear and the second gear are both arranged on the second movement assembly, and the second gear is fixedly connected with the roller;

the rack is used for driving the first gear, the second gear and the roller to rotate, so that the first motion assembly and the second motion assembly move relatively in the directions of approaching to each other or separating from each other, and the flexible screen assembly moves around the roller;

the display device further comprises a limiting assembly, the limiting assembly and the roller are arranged at the same end of the first moving assembly, the limiting assembly is arranged on the outer side of the roller, a gap is limited between the limiting assembly and the roller, and the distance between the limiting assembly and the roller is larger than the thickness of the flexible screen assembly.

2. The display device according to claim 1, wherein the belt inner surface is provided with teeth that mesh with the first gear and the second gear.

3. The display device of claim 2, wherein the first gear is disposed at the other end of the first motion assembly.

4. The display device according to claim 2, wherein the first moving assembly comprises a body, a first fixing plate and a second fixing plate, the first fixing plate is disposed on one side of the body, and the second fixing plate is disposed on the other side of the body;

the first fixing plate is provided with a first gear, a second gear and a transmission belt, and the second fixing plate is provided with a first gear, a second gear and a transmission belt;

one side of the second motion assembly is provided with the rack, the other side of the second motion assembly is also provided with the rack, and the gear is meshed with the first gear;

the roller is arranged between the first fixing plate and the second fixing plate, one end of the roller is fixedly connected with one second gear, and the other end of the roller is fixedly connected with the other second gear.

5. The display device according to claim 4, wherein the first gear includes a first tooth portion, a first connecting portion, and a second tooth portion, the first fixing plate is provided with a through hole for receiving the first connecting portion, the first tooth portion is located inside the first fixing plate, the first tooth portion is engaged with the rack, the second tooth portion is located outside the first fixing plate, and the second tooth portion is engaged with the transmission belt.

6. The display device according to claim 4, wherein a second gear is disposed outside the first fixing plate, a fixing hole is formed in the second gear, a rotating shaft is disposed at an end of the roller, and the rotating shaft is disposed in a fixing hole of the second gear.

7. The display device according to claim 4, wherein the body comprises a first support plate, a body plate and a second support plate, which are sequentially stacked, the body plate comprises a first side portion, a second side portion and a body portion, the first side portion is disposed on one side of the body portion, the second side portion is disposed on the other side of the body portion, and the first side portion and the second side portion are spaced apart from each other to receive the second moving component.

8. A display device as claimed in claim 4, characterised in that the body is provided with an end abutting the roller, the roller being provided with a plurality of mutually spaced recesses, the body being provided with a plurality of projections, a said projection being provided in a said recess.

9. A display device as claimed in claim 4, characterised in that the body is provided with a first guide formation and the second motion assembly is provided with a second guide formation, the first and second guide formations cooperating to define the direction of relative motion of the first and second motion assemblies.

10. The display device of claim 2, wherein the transmission assembly is disposed on a side of the display device.

11. The display device according to any one of claims 1 to 8, further comprising a driving mechanism for driving the transmission assembly to move so that the first moving assembly and the second moving assembly move relatively.