CN113643610B - display device - Google Patents

Abstract

An embodiment of the present application provides a display device. The display device includes: a first moving assembly, a second moving assembly, and a roller set at one end of the first moving assembly, and the roller can rotate relative to the first moving assembly; one end of the flexible screen assembly is connected to the first moving assembly, and the flexible screen assembly The other end goes around the roller and is connected with the second motion assembly; the transmission assembly includes a rack, a first gear meshed with the rack, a second gear meshed with the first gear, the rack is arranged on the first motion assembly, and the first gear and the second gear are all arranged on the second moving assembly, and the second gear is fixedly connected with the roller; the rack is used to drive the first gear, the second gear and the roller to rotate, so that the first moving assembly and the second moving assembly are close to each other Or move relative to each other in a direction away from each other, and make the flexible screen assembly move around the rollers. The embodiments of the present application can improve the smoothness of the movement of the flexible screen assembly during movement.

Description

display device

technical field

The present application relates to the field of display technology, and in particular to a display device.

Background technique

With the development of electronic technology, the degree of intelligence of display devices such as smart phones is getting higher and higher. The display device can display pictures through its display screen.

Among them, the flexible display screen has attracted much attention due to its foldable and bendable characteristics, and the overall size of the display device can be reduced by folding or bending the flexible display screen. However, the flexible display screen tends to abut against the surrounding housing structure during movement to form a frictional force, thereby affecting the normal movement of the flexible display screen.

Contents of the invention

An embodiment of the present application provides a display device, which can improve the smoothness of movement of a flexible screen assembly during movement.

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

first motion component;

second motion component;

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

a flexible screen assembly, one end of the flexible screen assembly is connected to the first motion assembly, and the other end of the flexible screen assembly is connected to the second motion assembly by going around the roller; and

A transmission assembly, the transmission assembly includes a rack, a first gear meshing with the rack, and a second gear meshing with the first gear, the rack is arranged on the first moving assembly, the Both the first gear and the second gear are arranged on the second moving assembly, and the second gear is fixedly connected to the roller;

Wherein, the rack is used to drive the first gear, the second gear and the roller to rotate, so that the first moving component and the second moving component are opposite to each other in the direction of approaching or moving away from each other. and make the flexible screen assembly move around the roller.

In the embodiment of the present application, the first movement component and the second movement component can perform relative movement, and the first movement component and the second movement component drive the flexible screen to move and the rollers to rotate during the movement. During the movement of the flexible screen assembly, the transmission assembly can synchronously drive the rollers to rotate, so as to prevent the bending radius of the flexible screen assembly from being too large during the movement. In addition, it prevents the flexible screen assembly from abutting against the shell of the outer structural assembly due to the increase of the bending radius during movement, thereby improving the smoothness of the flexible screen assembly during movement.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative efforts.

For a more complete understanding of the present application and its beneficial effects, the following description will be made in conjunction with the accompanying drawings, wherein the same reference numerals in the following descriptions represent the same parts.

FIG. 1 is a schematic diagram of a first structure of a display device provided by an embodiment of the present application.

FIG. 2 is a second structural schematic diagram of a display device provided by an embodiment of the present application.

FIG. 3 is a schematic diagram of a third structure of a display device provided by an embodiment of the present application.

FIG. 4 is a schematic diagram of a fourth structure of a display device provided by 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 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 .

FIG. 9 is a schematic diagram of cooperation between the first motion component and the second motion component in the display device provided by the embodiment of the present application.

FIG. 10 is a schematic structural diagram of a limiting component in a display device provided by an embodiment of the present application.

Fig. 11 is an exploded view of the limiting assembly shown in Fig. 10 .

FIG. 12 is a schematic structural diagram of cooperation between a limit assembly and a roller in a display device provided by an embodiment of the present application.

FIG. 13 is a schematic structural diagram of a flexible screen assembly in a display device provided by an embodiment of the present application.

FIG. 14 is a schematic structural diagram of a transmission assembly of a display device provided by an embodiment of the present application.

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

FIG. 16 is a schematic structural diagram of the cooperation between the transmission assembly and the rollers in the display device provided by the embodiment of the present application.

FIG. 17 is a schematic structural diagram of a first moving body in a display device provided by 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 diagram of the cooperation of the scroll wheel, the limiting assembly and the first fixing plate in the display device provided by the embodiment of the present application.

FIG. 20 is a schematic structural diagram of a second moving body in a display device provided by an embodiment of the present application.

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

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of this application.

Please refer to FIG. 1 and FIG. 2 , FIG. 1 is a first structural schematic diagram of a display device provided by an embodiment of the present application, and FIG. 2 is a second structural schematic diagram of a display device provided by an embodiment of the present application. The display device 20 may include a first moving body 100 , a second moving body 200 and a flexible screen assembly 300 . The first moving body 100 and the second moving body 200 are slidably connected so that the first moving body 100 and the second moving body 200 move relative to each other in the direction of approaching each other or moving away from each other, so that the unfolded state and the folded state can be realized. switch between. Wherein, the folded state can refer to FIG. 1 , that is, the state finally formed by the relative movement of the first moving body 100 and the second moving body 200 in the direction of approaching each other. Wherein, the unfolded state can refer to FIG. 2 , that is, the state formed by the relative movement of the first moving body 100 and the second moving body 200 in directions away from each other.

It should be noted that the unfolded states of the first moving body 100 and the second moving body 200 can be various. For example, 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 The body 100 and the second moving body 200 can move away from each other in the folded state, so as to reach the unfolded state in which one-quarter H, one-half H, and three-quarters of H are equally spaced to form different distances. The states with gradually farther distances may be defined as the first expanded state, the second expanded state, the third expanded state, and so on.

It should also be noted that when the first moving body 100 and the second moving body 200 are in the first unfolded state, for example, the distance that the first moving body 100 and the second moving body 200 move away from in the first unfolded state is four H, the first moving body 100 and the second moving body 200 can still move away from each other to reach the second unfolded state, such as the relative distance between the first moving body 100 and the second moving body 200 in the second unfolded state The distance traveled is one-half H.

It can be understood that one or more unfolded states of the first moving body 100 and the second moving body 200 in the embodiment of the present application are only for illustration, and do not constitute a reference to the first moving body 100 and the second moving body in the embodiment of the present application. A limit of 200 expanded states.

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

When the first moving body 100 and the second moving body 200 move relative to each other in a direction close to each other, the first moving body 100 and the second moving body 200 can drive a part of the flexible screen assembly 300 to be stored inside the display device 20, such as a display device 20 in the first housing 115. When the first moving body 100 and the second moving body 200 move relatively away from each other, the first moving body 100 and the second moving body 200 can drive a part of the flexible screen assembly 300 to protrude from the inside of the display device 20 .

Wherein, the first shell 115 can be covered on the periphery of the first moving body 100 , and the second shell 230 can be covered on the periphery 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 relative to each other in a direction close to each other, the flexible screen assembly 300 will form a fold under the action of an external force. , curling and other deformations to abut against the first housing 115 of the display device 20 , thereby generating frictional force, which affects the smoothness of the flexible screen assembly 300 during movement. It should also be noted that the bending radius of the flexible screen assembly 300 will increase due to deformation such as curling and folding during the movement of the flexible screen assembly 300 , which is not conducive to the thinner and lighter design of the display device 20 . In addition, it should be noted that the friction between the flexible screen assembly 300 and the first housing 115 of the display device 20 for a long time may easily damage the flexible screen assembly 300 and reduce the service life of the flexible screen assembly 300 .

Based on this, during the movement of the first moving body 100 and the second moving body 200 in the embodiment of the present application, a limiting component can be used to limit the bending position of the flexible screen assembly 300, so as to limit the movement of the flexible screen assembly 300 The bending radius in the process is to limit the space of the flexible screen assembly 300 at the bending part, so that the flexible screen assembly 300 will not increase the bending radius, which is beneficial to the thinning of the display device 20 . Moreover, the limit assembly can also prevent the flexible screen assembly 300 from abutting against the outer structure such as the first shell 115 to form a friction force during the movement, thereby improving the smoothness of the movement of the flexible screen assembly 300 and increasing the life of the flexible screen assembly 300 .

Please refer to FIG. 3 to FIG. 9, FIG. 3 is a schematic diagram of the third structure of the display device provided by the embodiment of the present application, FIG. 4 is a schematic diagram of the fourth structure of the display device provided by the embodiment of the present application, and FIG. 5 is the display shown in FIG. The side view of the device, 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 provided by the embodiment of the present application The schematic diagram of cooperation between the first moving body and the second moving body in the display device.

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 . The first moving body 100 may be provided with an escape space for installing the roller 400 . The roller 400 can be connected with the first moving body 100 by a pin shaft, so 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 around the roller 400 . That is, the flexible screen assembly 300 can bypass the roller 400 to connect the first moving body 100 and the second moving body 200 , so that the flexible screen assembly 300 can drive the roller 400 to rotate in a moving state.

The display device 20 may also include a limit assembly 500, please refer to Figure 10 and Figure 11, Figure 10 is a schematic structural view of the limit assembly in the display device provided by the embodiment of the present application, Figure 11 is an exploded view of the limit assembly shown in Figure 10 picture. The limiting assembly 500 may be disposed at one end of the first moving body 100 , and the limiting assembly 500 and the roller 400 are disposed at the same end of the first moving body 100 . Please refer to FIG. 12, which is a schematic diagram of the structure of the cooperation between the limit assembly and the roller in the display device provided by the embodiment of the present application. The limit assembly 500 can be arranged outside the roller 400, so that the limit gap 201 to accommodate a part of the flexible screen assembly 300 , that is, a part 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 part of the flexible screen assembly 300 (or the part around the roller 400) through the cooperation of the limit assembly 500 and the roller 400, so as to limit the bending of the flexible screen assembly 300 during the movement. The radius, that is, defines the space at the bending part of the flexible screen assembly 300 , so that the flexible screen assembly 300 will not increase the bending radius, which is beneficial to the thinning of the display device 20 . Moreover, the cooperation of the limit assembly 500 and the roller 400 can also prevent the flexible screen assembly 300 from abutting against the outer structure such as the first shell 115 during the movement to form frictional force, thereby improving the smoothness of the movement of the flexible screen assembly 300, and increasing the The lifespan of the flexible screen assembly 300.

During the actual movement of the first moving body 100 and the second moving body 200, when the first moving body 100 moves relative to each other 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 The relative movement in the direction away from each other displays the part received in the first moving body 100 , so as to increase the display area of the flexible screen assembly 300 .

It can be understood that when the flexible screen assembly 300 moves relative to the first moving body 100 in a direction away from each other, the flexible screen assembly 300 moves in close contact with the roller 400 , and the roller 400 follows the movement of the flexible screen assembly 300 . turn. During this process, the force on the flexible screen assembly 300 is applied to the roller 400 to drive the roller 400 to rotate. The movement of the flexible screen assembly 300 will not cause curling, bending or other deformations, that is, it will not increase its bending radius, and will not No frictional force will be generated by abutting against the outer structure such as the first shell 115 . At this time, the limiting component 500 may limit the flexible screen component 300, or the limiting component 500 may not limit it. That is, when the flexible screen assembly 300 moves relative to the first moving body 100 in a direction away from each other, the limit assembly 500 may be attached to the flexible screen assembly 300 , or the limit assembly 500 may not be attached to the flexible screen assembly 300 . The distance between the limiting assembly 500 and the roller 400 can be designed to be slightly larger than the thickness of the flexible screen assembly 300 .

During the actual movement of the first moving body 100 and the second moving body 200, when the first moving body 100 moves relative to each other in a direction close to each other, the flexible screen assembly 300 is forced to follow the first moving body 100 and the second moving body 200 The directions moving away from each other move relative to each other to accommodate a part extending outside the first moving body 100 in the first moving body 100 , so as to reduce the display area of the flexible screen assembly 300 .

It can be understood that when the flexible screen assembly 300 moves relative to each other following the first moving body 100 in the direction of approaching each other, the flexible screen assembly 300 is still moving in close contact with the roller 400 , and the roller 400 follows the movement of the flexible screen assembly 300 And turn. During this process, part of the force experienced by the flexible screen assembly 300 is applied to the roller 400 to drive the roller 400 to rotate. Another part of the force on the flexible screen assembly 300 is likely to cause the flexible screen assembly to produce curling, bending and other deformations, so as to increase the bending radius of the flexible screen assembly 300, causing the flexible screen assembly 300 to abut against the outer structure such as the first shell 115 to generate friction. At this time, the limit assembly 500 can limit the flexible screen assembly 300, for example, another part of the force on the flexible screen assembly 300 acts on the limit assembly 500 to control the movement space of the flexible screen assembly 300 at the position of the roller 400. Limiting, that is, limiting the bending radius of the flexible screen assembly 300 , prevents the flexible screen assembly 300 from abutting against an outer structure such as the first housing 115 to generate frictional force.

It should be noted that in the embodiment of the present application, the flexible screen assembly 300 follows 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 follows the first moving body 100 and the second moving body. The moving body 200 moves relative to each other in the direction of approaching each other, and the flexible screen assembly 300 is attached to the roller 400 and the limit assembly 500 to move.

It should also be noted that the flexible screen assembly 300 in the embodiment of the present application moves relative to the first moving body 100 and the second moving body 200 in a direction away from each other, and the flexible screen assembly 300 will be attached to the roller 400 to move, But it does not fit with the limiting component 500 . The flexible screen assembly 300 follows 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 is attached to the roller 400 and the limiting assembly 500 to move. This method will 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 of approaching each other, but it can still reduce the flexibility to a certain extent. The bending radius of the screen assembly 300 when the first moving body 100 and the second moving body 200 move relative to each other in the direction of approaching each other.

Wherein, the limiting assembly 500 can be designed to be rotatable relative to the first moving body, for example, the limiting assembly 500 is rotatably fixed on the first moving body 100 by a pin shaft or the like. Therefore, even if the flexible screen assembly 300 is attached to the limit assembly 500 during movement, since the limit assembly 500 can rotate following the movement of the flexible screen assembly 300 , the movement of the flexible screen assembly 300 will be relatively smooth. Of course, the limit assembly 500 can also be designed not to rotate relative to the first moving body 100, and is directly fixedly connected to the first moving body 100. At this time, the part of the first moving body 100 close to the flexible screen assembly 300 can be designed to be smooth. The arc-shaped structure makes the flexible screen assembly 300 reduce friction when it is attached to the stopper assembly 500 and moves.

In order to reduce the friction force between the limiting component 500 and the flexible screen component 300 during the bonding process, the embodiment of the present application can reduce the bonding area of the limiting component 500 and the flexible screen component 300 . For example, the limiting assembly 500 may include a limiting shaft 510 and at least one limiting sleeve 520 . The limiting shaft 510 is disposed at one end of the first moving body 100 , that is, disposed at the same end as the roller 400 . The limiting shaft 510 is fixed on the first moving body 100 and may not move. At least one limiting sleeve 520 may be one limiting sleeve 520 , or may be multiple, such as two limiting sleeves 520 . The limit sleeves 520 are all sleeved on the limit shaft 510, and the limit sleeves 520 sleeved on the limit shaft 510 are only sleeved on a part of the limit shaft 510, that is, there are still other parts of the limit shaft 510. It is set and exposed outside by the limit sleeve 520. The limiting sleeve 520 is sleeved on the limiting shaft 510 and can rotate relative to the limiting shaft 510 .

Wherein, there may be two limiting sleeves 520, 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 limiting sleeves 520 is located on one side of the first moving body 100 , and the other of the two limiting sleeves 520 is located on the other side of the first moving body 100 .

In order to prevent the size of the limit sleeve 520 from being too large in diameter and affect the size of the entire display device 20, some embodiments of the present application may provide a groove structure on the limit shaft 510 such as slot 512, and set the limit sleeve 520 At the position of the slot structure such as the slot 512 , the outer peripheral edge of the limiting sleeve 520 slightly protrudes from the limiting shaft 510 . In the embodiment of the present application, the dimension such as the diameter of the limiting shaft 510 and the dimension such as the diameter of the limiting sleeve 520 may be designed to be smaller than the dimension such as the diameter of the roller 400 .

Therefore, when the flexible screen assembly 300 of the embodiment of the present application moves following the relative movement of the first moving body 100 and the second moving body 200, the flexible screen assembly 300 can be attached to the limiting sleeve 520 to drive the limiting sleeve 520 around the limiting sleeve. Bit axis 510 rotates. Therefore, the contact area between the flexible screen assembly 300 and the limit assembly 500 can be greatly reduced, the frictional force can be reduced, and the smoothness of movement of the flexible screen assembly 300 can be improved.

In order to keep the limit assembly 500 such as the limit sleeve 520 can always produce an effective limit on the flexible screen assembly 300, or in order to keep the limit assembly 500 such as the limit sleeve 520 can always be attached to the flexible screen assembly 300, some Embodiments may design at least one elastic member 530 . At least one elastic member 530 may be one, or multiple, 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 the limiting shaft 510 to push toward the direction of the roller 400 . The elastic member 530 may be an elastic structure such as a torsion spring or a spring. Taking the elastic member 530 as a torsion spring 530 as an example, one end of the limit shaft 510 is fixedly connected to one side of the first moving body through a torsion spring 530, and the other end of the limit shaft 510 is fixedly connected to the first moving body through a torsion spring 530. The other side of the moving body 100. For example, a torsion spring 530 is sleeved on one end of the limit shaft 510, and the torsion spring 530 is connected to one side of the first moving body 100, another torsion spring 530 is sleeved on the other end of the limit shaft 510, and The other torsion spring 530 abuts against the other side of the first moving body 100 . And the two torsion springs 530 are connected to the outer side of one end of the first moving body 100, so that the torsion springs 530 can form an elastic force toward the direction of the roller 400 by contacting or abutting against the first moving body 100 , the elastic force acts on the limit shaft 510 , and the limit shaft 510 transmits the force to the limit sleeve 520 . Therefore, the two torsion springs 530 can maintain the elastic force of the limiting sleeve 520 toward the roller 400 , so as to ensure that the limiting sleeve 520 can always generate pressing force with the flexible screen assembly 300 .

Please refer to FIG. 13. FIG. 13 is a schematic structural diagram of a flexible screen assembly in a display device provided by an embodiment of the present application. The flexible screen assembly 300 may include a flexible screen 320 and a support sheet 340 disposed on the non-display surface of the flexible screen 320. The support sheet The other side of 340 abuts against the roller 400 . At the part where the flexible screen assembly 300 abuts with the limiting assembly 500 such as the limiting sleeve 520, only the supporting structure can be designed without designing the flexible screen structure, so as to avoid the part of the flexible screen 320 directly abutting against the limiting sleeve 520. 320 plays an effective protection.

For example: the size of the flexible screen 320 is smaller than the size of the support sheet 340, when the non-display surface of the flexible screen 320 is fixed to the support sheet 340, an abutment portion 342 can be formed on the periphery of the support sheet 340, and the abutment portion 342 can be connected to the limit assembly 500 The limit sleeve 520 is abutted against, or a part of the support piece 340 is limited between the limit sleeve 520 and the roller 400 . Therefore, the flexible screen 320 of the flexible screen assembly 300 can be limited between the two limiting sleeves 520 , or the flexible screen 320 can be limited between the limiting shaft 510 and the roller 400 without abutting against the limiting sleeves 520 . The support piece 340 can be made of wear-resistant material such as metal, so that the support piece 340 abuts with the limit sleeve 520, which not only protects the flexible screen 320, but also has wear resistance.

It should be noted that, in some other embodiments of the present application, a part of the flexible screen 320 and a part of the support piece 340 may also be directly limited between the limiting shaft 510 and the roller 400 . In other words, the flexible screen 320 directly abuts against the limiting component 500 such as the limiting sleeve 520 .

In some other embodiments, in order to reduce the damage of the flexible screen assembly 300 caused by the direct abutment of the limiting assembly 500 such as the limiting sleeve 520 and the flexible screen 320 of the flexible screen assembly 300, the flexible screen 320 of the flexible screen assembly 300 and the limiting An additional layer of protection is provided where assembly 500 such as stopper 520 fits.

Please refer to FIG. 14 and FIG. 15 . FIG. 14 is a schematic structural diagram of a transmission assembly of a display device provided by an embodiment of the present application, and FIG. 15 is an exploded view of the transmission assembly shown in FIG. 14 . The display device 20 may further include a transmission assembly such as a transmission assembly 600 for driving the first moving body 100 and the second moving body 200 to move. A part of the transmission assembly 600 may be disposed on the first moving body 100 , and another part of the transmission assembly 600 may be disposed on the second moving body 200 . For example, the transmission assembly 600 includes a first gear 610 , a second gear 620 and a transmission belt 630 disposed on the first moving body 100 , and the transmission assembly 600 includes a rack 640 disposed on the second moving body 200 . The rack 640 can be fixedly connected to the second moving body 200 by screws, for example, a plurality of screw holes 644 are provided on the rack 640, so that the screws are screwed into the screw holes 644 to achieve a fixed connection with the second moving body 200 .

One side of the rack 640 is provided with a tooth 642 meshing with the first gear 610 . The rack 640 meshes with the first gear 610 , the first gear 610 meshes with the transmission belt 630 , the transmission belt 630 meshes with the second gear 620 , and the second gear 620 and the roller 400 are fixedly connected together. The rack 640 can drive the first gear 610 to rotate, the rotation of the first gear 610 drives the transmission belt 630 to move, and the movement of the transmission belt 630 drives the second gear 620 and the roller 400 to rotate together. In this way, the transmission of the first moving body 100 and the second moving body 200 is realized, so that the first moving body 100 and the second moving body 200 move relative to each other in the direction of approaching or moving away from each other, and the flexible screen assembly 300 surrounds the roller 400 sports.

It can be understood that the inner surface of the transmission belt 630 is provided with teeth 632 meshing with the first gear 610 and the second gear 620 .

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

Please refer to FIG. 16 . FIG. 16 is a schematic structural diagram of the cooperation between the transmission assembly and the rollers in the display device provided by the embodiment of the present application. In some embodiments of the present application, the transmission assembly 600 can also drive the roller 400 to rotate when driving the first moving body 100 and the second moving body 200 to move away from or approach each other, so that each component can be realized during the movement. Synchronization of force, better transmission effect. The second gear 620 and the roller 400 can be fixedly connected together. For example, a fixing hole 622 is opened on the second gear 620 , and the rotating shaft 420 is provided at the end of the roller 400 , and the rotating shaft 420 can be inserted into the fixing hole 622 to realize the fixed connection between the roller 400 and the second gear 620 . It should be noted that the fixing method of the second gear 620 and the roller 400 is not limited to this, for example, a rotating shaft is arranged on the second gear 620, and a fixing hole is opened on the roller 400, and the rotating shaft of the second gear 620 is inserted into the roller 400 The fixed hole provided realizes the fixed connection.

Thus, the transmission assembly 600 of the embodiment of the present application 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 transmission belt 630 . The mutual cooperation of the transmission belt 630 makes the flexible screen assembly 300 fixed on the first moving body 100 and the second moving body 200 in a limited state.

In other words, through the mutual cooperation of the rack 640, the first gear 610, the second gear 620 and the transmission belt 630, the flexible screen assembly 300 fixed on the first moving body 100 and the second moving body 200 is in a tensioned state. During the movement of the screen assembly 300, it is not easy to have large deformations such as winding and bending, that is, the mutual cooperation of the rack 640, the first gear 610, the second gear 620 and the transmission belt 630 is always consistent during the movement of the flexible screen assembly 300. There is a tension force on the flexible screen assembly 300 to prevent the flexible screen assembly 300 from being greatly deformed. Based on this, the limiting effect of the limiting component 500 combined with the display device 20 on the flexible screen component 300 is better.

Of course, it should be noted that the display device 20 adopts the transmission assembly 600 defined in the embodiment of the present application, and it is also possible not to provide the limit assembly 500 .

Wherein, the rack 640 can be arranged on the side of the second moving body 200, such as two racks 640, one of which is arranged on one side of the second moving body 200, and the other is arranged on the other side of the second moving body 200. side. Correspondingly, there may be two first gears 610, two second gears 620, and two transmission belts 630. Wherein a first gear 610, a second gear 620 and a transmission belt 630 are arranged on one side of the first moving body 100, and another first gear 610, another second gear 620 and another transmission belt 630 are arranged on the first moving body. the other side of the body. A first gear 610 on the same side of the display device 20 meshes with a rack 640 , a first gear 610 meshes with a transmission belt 630 , and a transmission belt 630 meshes with a second gear 620 . One second gear 620 is fixedly connected with one end of the roller 400 , and the other second gear 620 is fixedly connected with the other end of the roller 400 .

Please refer to Figure 17 and Figure 18, Figure 17 is a schematic structural diagram of the first moving body in the display device provided by the embodiment of the present application, Figure 18 is an exploded view of the first moving body shown in Figure 17, the first moving body 100 can It includes 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 can be integrally formed, such as machining, injection molding and the like. The first fixing plate 120 can also be fixed with the body 110 in other ways, such as screwing, welding, inserting and so on. The second fixing plate 130 can also be fixed with the main body 110 in other ways, such as screwing, welding, inserting and so on. A screw hole 123 can be provided on the first fixed plate 120, so that the first fixed plate 120 can be fixed on one side of the body 110 by screws, and a screw hole 133 can be set on the second fixed plate 130, so that the second fixed plate can be fixed by screws. The fixing plate 130 is fixed on the other side of the body 110 .

Please refer to FIG. 19. FIG. 19 is a schematic diagram of the cooperation of the roller, the limit assembly and the first fixing plate in the display device provided by the embodiment of the present application. The roller 400 can be arranged 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 can be provided on the first fixed plate 120 to accommodate one end of the roller 400 , or a through hole 121 such as a round hole can be provided on the first fixed plate 120 to accommodate the roller 400 and the second gear 620 part of the fixed connection. And set a through hole 131 such as a round hole on the second fixed plate 130 to accommodate the other end of the roller 400, or in other words can set a through hole 131 such as a round hole on the second fixed plate 130 to accommodate the roller 400 and the second gear 620 fixedly connected parts.

It should be noted that when the display device 20 includes the limiting component 500 , the limiting component 500 may also be disposed on the first fixing plate 120 and the second fixing plate 130 . For example, one end of the limiting shaft 510 and one elastic member 530 of the limiting assembly 500 are disposed on the first fixing plate 120 , and the other end of the limiting shaft 510 and another elastic member 530 are disposed on the second fixing plate 130 . A through hole 122 such as a waist hole can be provided on the first fixed plate 120 to accommodate one end of the limit shaft 510, and a through hole 132 such as a waist hole can be provided on the second fixed plate 130 to accommodate the other end of the limit shaft 510. one end. And can offer a limit groove 125 communicated with the waist-shaped hole on the first fixed plate 120 to accommodate an elastic member, and set a limit groove communicated with the waist-shaped hole on the second fixed plate 130 to accommodate another an elastic piece. In the embodiment of the present application, the limit shaft 510 is defined in the waist-shaped hole to realize the adjustment of the position of the limit shaft 510. When necessary, for example, the thickness of different flexible screen components is different, so that it can be adjusted according to the thickness of different flexible screen components. The position of the limit axis 510 .

It should also 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 . For example, the first fixed plate 120 is provided with a first gear 610 , a second gear 620 and a transmission belt 630 , and the second fixed plate 130 is provided with a first gear 610 , a second gear 620 and a transmission belt 630 .

Each first gear 610 may include a first tooth portion 612 , a second tooth portion 614 and a first connecting portion 616 . The rotating shaft 420 at one end of the roller 400 is fixedly connected to a fixing hole 622 of a second gear 620 , and the rotating shaft at the other end of the roller 400 is fixedly connected to a fixing hole of another second gear 620 . The first fixed plate 120 is also provided with a through hole 126, the through hole 126 is provided with a first connecting portion 616 of a first gear 610, the first tooth portion 612 of a first gear 610 is located on the inner surface of the first fixed plate 120, and Engaged with a rack 640, the second tooth portion 614 of a first gear 610 is located on the outer surface of the first fixed plate 120 and meshed with a transmission belt 630, a second gear 620 is located on the outer surface of the first fixed plate 120, And engage with a transmission belt 630 .

The second fixed plate 130 is also provided with a through hole 136, the through hole 136 is provided with a first connecting portion of another first gear 610, the first tooth portion of the other first gear 610 is located on the inner surface of the second fixed plate 130, And meshed with another rack 640, the second tooth portion of the other first gear 610 is located on the outer surface of the second fixed plate 130 and meshed with another transmission belt 630, and the other second gear 620 is located on the second fixed plate 130 and engages with the drive belt 630.

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

Wherein, the body 110 may include a first support plate 111, a second support plate 112 and a main body plate 113, the first support plate 111, the main body plate 113 and the second support plate 112 are stacked in sequence, and the first support plate 111 is arranged on the main board 113 On one side, 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 can be integrally formed, such as formed by machining or injection molding. The first support plate 111 and the main body plate 113 may also be fixed in other ways, such as screwing with screws 700 , welding, inserting and so on. The second support plate 112 and the main body plate 113 can also be fixed in other ways, such as screwing with screws 700 , welding, inserting and so on. When the first support plate 111 and the second support plate 112 are fixed on both sides of the main body plate 113 , a storage cavity can be formed between the first support plate 111 and the second support plate 112 to accommodate a part of the second moving body 200 .

It should be noted that, in the embodiment of the present application, the first moving body 100 may further include a rear cover 114 , and the rear cover 114 may be disposed on the outside of 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 stacked in sequence.

The main body plate 113 can be understood as having three parts, such as including a main body part 1133 , a first side part 1131 and a second side part 1132 connected to two sides of the main body part 1133 . The first side portion 1131 and the second side portion 1132 are spaced apart from each other. When the first support plate 111 and the second support plate 112 are fixed on the main body plate 113, a The storage chamber is used to accommodate a part of the second moving body 200 . Wherein, the main body portion 1133 is disposed close to the position of the roller 400 . Wherein, the first fixing plate 120 is disposed on the first side portion 1131 of the main body plate 113 , and the second fixing plate 130 is disposed on the second side portion 1132 of the main body plate 113 .

It should be noted that, in the embodiment of the present application, the first casing 115 of the first moving body 100 can be covered on the outer side of the roller 400 and the limit assembly 500 . In the embodiment of the present application, the first moving body 100 may further include two outer covers 116 , one outer cover 116 is located on one side of the first moving body 100 , and the other outer cover 116 is located on the other side of the first moving body 100 . An outer cover 116 can be disposed on the first fixing plate 120 , such as opening a screw hole 124 on the first fixing plate 120 , so as to fix the outer cover 116 on the first fixing plate 120 by screws. Another outer cover 116 can be disposed on the second fixing plate 130 , such as opening a screw hole 134 on the second fixing plate 140 , so as to fix the outer cover 116 on the second fixing plate 130 by screws.

Please refer to Figure 20 and Figure 21, Figure 20 is a schematic structural diagram of the second moving body in the display device provided by the embodiment of the present application, Figure 21 is an exploded view of the second moving body shown in Figure 20, the second moving body 200 can It includes a carrying board 210 and a third supporting board 220 . The third support plate 220 may be fixed on the bearing plate 210, such as by screw fixing. Wherein, the rack 640 can be fixed on the bearing plate 210 , such as using screws to pass through the screw holes 644 of the rack 640 , so as to fix the rack 640 on the bearing plate 210 . It should be noted that, in the embodiment of the present application, the second casing 230 of the second moving body 200 may cover one side and the side of the third support plate 220 and the bearing plate 210 .

In order to increase the stability of the first moving body 100 and the second moving body 200 during mutual movement, a guiding structure may be provided between the first moving body 100 and the second moving body 200 . For example, the first moving body 100 is provided with a guide 1112 , and the second moving body 200 is provided with a guide groove 221 , and the guide 1112 can move in the guide groove 221 . The number of guide grooves 221 in the embodiment of the present application may be one, two or more, and the number of guide pieces 1112 is the same as the number of guide grooves 221 . It should be noted that, in the embodiment of the present application, a spacer plate 222 is formed between two adjacent guide grooves 221, and a gap 1113 is formed between two adjacent guide pieces 1112. The spacer plate 222 of the second moving body 200 can be in the gap Movement in 1113. In some embodiments, the side wall of the guide groove 221 of the second moving body 200 is provided with a protruding line 223 , and the protruding line 223 can further limit the guiding member 1112 .

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

It should be noted that it is also possible to provide guide grooves on the first support plate 111 and provide guide members on the third support plate 220 .

In order to ensure the smoothness of the flexible screen assembly 300 during movement, avoid the flexible screen assembly 300 from being stuck at the position of the roller 400 . In some embodiments of the present application, the roller 400 may be designed as a stepped shaft structure, for example, the roller 400 is provided with a plurality of spaced grooves 410 . It can be understood that the groove 410 can be arranged around one circle of the roller 400 . One end of the body 110 is adjacent to the roller 400. For example, a plurality of protrusions 117 are arranged at the position adjacent to the roller 400 of the body 110. A protrusion 117 is arranged in a groove 410, and the outer surface of the protrusion 117 is not in contact with the roller 400. . Wherein, the number of protrusions 117 may be equal to the number of grooves 410 . It should be noted that the bump 117 can be composed of two parts. For example, the bump 117 includes a first bump 1111 and a second bump 1121. The first bump 1111 can be arranged at the end of the first supporting plate 111, and the second The bump 1121 may be disposed at an end of the second support plate 112 . Wherein, both the first protrusion 1111 and the second protrusion 1121 are located in the groove 410 , and there is a main body 1113 between the first protrusion 1111 and the second protrusion 1121 .

The transmission assembly 600 can be manually driven to move. For example, if a force in the first direction is applied to the first moving body 100 and the second moving body 200, the acting force in the first direction can be applied to the rack 640, and the rack 640 moves to drive the first gear 610 along the first Rotate in a predetermined direction such as clockwise, and then drive the second gear 620 and the roller 400 to rotate through the transmission belt 630, so that the first moving body 100 and the second moving body 200 move in a direction away from each other, and make the flexible screen assembly 300 move, to increase the display area. For another example, when the force in the second direction is applied to the first moving body 100 and the second moving body 200, the force in the second direction can be applied to the rack 640, and the rack 640 moves to drive the first gear 610 along the first gear 610. Rotate in two preset directions, such as counterclockwise, and then drive the second gear 620 and the roller 400 to rotate through the transmission belt 630, so that the first moving body 100 and the second moving body 200 move in the direction close to each other, and make the flexible screen assembly 300 move , so as to reduce the display area of the flexible screen assembly 300 .

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

The following is an example to illustrate that the first moving body 100 and the second moving body 200 in the display device 20 move with each other to drive the flexible screen assembly 300 to move so as to change the display area of the flexible screen assembly 300 .

Please continue to refer to FIG. 1 to FIG. 9 . FIG. 1 , FIG. 3 , FIG. 5 , FIG. 7 and FIG. 9 illustrate that the first moving body 100 and the second moving body 200 of the display device 20 are in a folded state. The first moving body 100 and the second moving body 200 can be manually driven to move away from each other to switch to the unfolded state. FIG. 2 , FIG. 4 , FIG. 6 and FIG. 8 illustrate the first moving body 100 of the display device 20 And the second moving body 200 is in the unfolded state.

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

Then, the two hands are pulled along the movement direction of the display device 20 and in a direction from the inside of the display device 20 toward the outside. At this time, it can be seen from the outside of the display device 20 that the first moving body 100 and the second moving body 200 are moving away from each other, and a part of the flexible screen assembly 300 originally stored in the display device 20 is pulled out, so that The display area of the flexible screen assembly 300 gradually increases.

At this time, inside the display device 20, the user applies force to the first moving body 100 and the second moving body 200, the first moving body 100 applies the force to the rack 640, and the second moving body 200 applies force to the first gear 610 . Therefore, the rack 640 and the first gear 610 generate driving motions to drive the transmission belt 630 to move, thereby driving the second gear 620 to rotate together with the roller 400 , and at the same time drive the flexible screen assembly 300 to move around the roller 400 . In this way, force synchronization is achieved, and folding or bending of the flexible screen assembly 300 during movement is reduced. If the display device 20 includes a limiting component 500 , the flexible screen component 300 is limited by the limiting component 500 when moving, such as driving the limiting sleeve 520 of the limiting component 500 to rotate.

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

Then, the two hands are pushed along the movement direction of the display device 20 and in a direction from the outside to the inside of the display device 20 . At this time, it can be seen from the outside of the display device 20 that the first moving body 100 and the second moving body 200 are moving closer to each other, and the part of the originally exposed outside of the display device 20 of the flexible screen assembly 300 is housed in the display device. 20, so that the display area of the flexible screen assembly 300 gradually decreases.

At this time, inside the display device 20, the user applies force to the first moving body 100 and the second moving body 200, the first moving body 100 applies the force to the rack 640, and the second moving body 200 applies force to the first gear 610 . Therefore, the rack 640 and the first gear 610 generate driving motions to drive the transmission belt 630 to move, thereby driving the second gear 620 to rotate together with the roller 400 , and at the same time drive the flexible screen assembly 300 to move around the roller 400 . In this way, the synchronization of the acting force is realized, and the possibility of folding or bending during the movement of the flexible screen assembly 300 is reduced. If the display device 20 includes a limiting component 500 , the flexible screen component 300 is limited by the limiting component 500 when moving, such as driving the limiting sleeve 520 of the limiting component 500 to rotate.

Therefore, whether the first moving body 100 and the second moving body 200 in the embodiment of the present application are moving closer or moving away, one end of the flexible screen assembly 300 is always fixedly connected to the second moving body 200, and the flexible screen assembly The other end of 300 is always fixedly connected with the first moving body, and through the cooperation of the rack 640, the first gear 610, the second rack 620 and the transmission belt 630, the relative force of the two ends of the flexible screen assembly 300 can be maintained, or Talk about tension. The possibility of curling or folding of the flexible screen assembly 300 during movement is reduced, the smoothness of the movement of the flexible screen assembly 300 is improved, the flexible screen assembly 300 is protected, and its lifespan is improved. If combined with the limiting assembly 500 of some embodiments of the present application, the flexible screen assembly 300 can be prevented from being curled or folded during movement.

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

The structure of the display device 20 in the embodiment of the present application is not limited to the above content, for example, the display device 20 may also include components such as a main board and a battery.

It should be noted that the display device defined in the embodiment of the present application is a device, or device, including the above flexible screen assembly, the first moving body and the second moving body, which can be a mobile phone, a desktop computer, a notebook, a tablet computer, Devices with display functions such as wristwatch devices, televisions, media players, computer monitors, etc.

The first moving body 100, the second moving body 100, the rollers 400 and the limit assembly 500 assembled on the first moving body 100 defined in the embodiment of the present application can constitute a carrying device, which can carry the flexible screen as described above. Component 300. It can be understood that the carrying device can also carry other components, and it is not limited to carrying the flexible screen assembly 300 .

The first moving body 100, the second moving body 100, the rollers 400 and the transmission assembly 600 assembled on the first moving body 100 defined in the embodiment of the present application can constitute a carrying device, which can carry the above-mentioned flexible screen assembly 300. It can be understood that the carrying device can also carry other components, and it is not limited to carrying the flexible screen assembly 300 .

The display device provided by the embodiment of the present application has been introduced in detail above. In this paper, specific examples are used to illustrate the principle and implementation of the present application. The description of the above embodiment is only used to help understand the method and its core of the present application. At the same time, for those skilled in the art, according to the idea of this application, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be construed as limiting the application.

Claims (11)

1. A display device, characterized in that, comprising: first motion component; second motion component; a roller, the roller is arranged at one end of the first moving component, and the roller can rotate relative to the first moving component; a flexible screen assembly, one end of the flexible screen assembly is connected to the first motion assembly, and the other end of the flexible screen assembly is connected to the second motion assembly by going around the roller; and A transmission assembly, the transmission assembly includes a rack, a first gear engaged with the rack, a transmission belt engaged with the first gear, and a second gear engaged with the belt, the rack is arranged on the 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 to the roller; Wherein, the rack is used to drive the first gear, the second gear and the roller to rotate, so that the first moving component and the second moving component are opposite to each other in the direction of approaching or moving away from each other. moving, and causing the flexible screen assembly to move around the roller; The display device also includes a limit assembly, the limit assembly and the roller are arranged at the same end of the first moving assembly, and the limit assembly is arranged outside the roller, the limit A gap is defined between the component and the roller, and the distance between the limiting component and the roller is greater than the thickness of the flexible screen component. 2. The display device according to claim 1, wherein the inner surface of the transmission belt is provided with teeth meshing with the first gear and the second gear. 3. The display device according to claim 2, wherein the first gear is disposed at the other end of the first moving component. 4. The display device according to claim 2, wherein the first moving component comprises a body, a first fixing plate and a second fixing plate, the first fixing plate is arranged on one side of the body, and the The second fixing plate is arranged on the other side of the body; The first fixed plate is provided with the first gear, the second gear and a transmission belt, and the second fixed plate is provided with the first gear, the second gear and the Transmission belt; One side of the second moving assembly is provided with a rack, the other side of the second moving assembly is also provided with a rack, and one of the gears meshes with the first gear; The roller is arranged between the first fixed plate and the second fixed plate, one end of the roller is fixedly connected to a second gear, and the other end of the roller is connected to another second gear Fixed connection. 5. The display device according to claim 4, wherein the first gear comprises a first tooth portion, a first connecting portion and a second tooth portion, and the first fixing plate is provided with a structure for accommodating the The through hole of the first connecting part, the first tooth part is located on the inner side of the first fixing plate, the first tooth part is engaged with the rack, and the second tooth part is located on the first fixing plate. Outboard of the plate, the second toothing meshes with the drive belt. 6. The display device according to claim 4, wherein the second gear is arranged on the outside of the first fixing plate, a fixing hole is opened in the second gear, and the end of the roller wheel A rotating shaft is provided, and a rotating shaft is arranged in a fixing hole of the second gear. 7. The display device according to claim 4, wherein the main body comprises a first support plate, a main body plate and a second support plate stacked in sequence, the main body plate comprises a first side, a second side part and a main part, the first side part is arranged on one side of the main part, the second side part is arranged on the other side of the main part, the first side part and the second side part are spaced apart from each other to accommodate the second moving assembly. 8. The display device according to claim 4, wherein one end of the body is adjacent to the roller, the roller is provided with a plurality of grooves spaced apart from each other, and the body is provided with a plurality of protrusions, One of the protrusions is arranged in one of the grooves. 9. The display device according to claim 4, wherein the body is provided with a first guide structure, the second moving component is provided with a second guide structure, and the first guide structure and the second A guide structure cooperates to define a direction of relative movement of the first motion assembly and the second motion assembly. 10. The display device according to claim 2, wherein the transmission assembly is disposed on one side of the display device. 11. The display device according to any one of claims 1 to 8, characterized in that the display device further comprises a driving mechanism, the driving mechanism is used to drive the transmission assembly to move, so that the first movement assembly Relatively moving with the second moving component.

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