CN112639926A

CN112639926A - Display device

Info

Publication number: CN112639926A
Application number: CN201880094146.3A
Authority: CN
Inventors: 沈贺文
Original assignee: Shenzhen Royole Technologies Co Ltd
Current assignee: Shenzhen Royole Technologies Co Ltd
Priority date: 2018-08-30
Filing date: 2018-08-30
Publication date: 2021-04-09
Also published as: WO2020042122A1

Abstract

The invention relates to a display device (10), the display device (10) comprising: a base (100); the fixing component is arranged on the base (100) and comprises a first fixing component (20) and a second fixing component (20a) which are oppositely arranged, and the first fixing component (20) and the second fixing component (20a) are respectively used for fixing a first end (30) and a second end (30a) of the device (30) to be displayed; the first driving part is connected with the first fixing assembly (20) and can drive the first fixing assembly (20) to rotate along a preset direction.

Description

Display device

Technical Field

The invention relates to the technical field of display, in particular to a display device which is used for displaying devices.

Background

Flexible devices such as flexible display panels are widely used in display devices such as mobile phones and tablet computers because of their characteristics such as flexibility, high contrast, self-luminescence, and low power consumption, and display devices having flexible display panels are becoming popular. In some scenarios for displaying flexible display screens, the flat or bent state of the screen can often only be displayed in a static manner.

Disclosure of Invention

The invention aims to solve the problem that the existing flexible screen is single in form during display, and provides a display device for the flexible screen.

Embodiments of the present invention provide a display device comprising a base; the fixing component is arranged on the base and comprises a first fixing component and a second fixing component which are oppositely arranged, and the first fixing component and the second fixing component are respectively used for fixing a first end and a second end of a to-be-displayed device; the first driving part is connected with the first fixing assembly and can drive the fixing assembly to rotate along a preset direction.

Preferably, the display device further comprises a second driving part, wherein the second driving part is connected with the first fixing component and can drive the fixing component to move along the horizontal direction. When the first fixing component moves along the horizontal direction, the first driving part moves along with the first fixing component. The base is provided with a slide rail, and the first fixing component is erected on the slide rail and can move along the slide rail.

The display device provided by the invention realizes dynamic display of the flexible device, has a more novel display form, and achieves a better display effect.

Drawings

The following drawings are included to provide a detailed description of various embodiments of the invention. It should be understood that the elements illustrated in the drawings are not necessarily to scale, and that they are merely schematic representations made for clarity of illustration and are not to be construed as limitations of the invention.

FIG. 1 is a schematic structural diagram of a display device assembled with a flexible display screen according to an embodiment of the present invention;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a perspective view of the display device of FIG. 1, wherein the display device is housed within a housing;

FIG. 4 is a side view of the display device of FIG. 1 with the flexible display screen in a flattened state;

FIG. 5 is a view similar to FIG. 4, wherein the flexible display is in a first flexed state;

FIG. 6 is similar to FIG. 5 with the flexible display screen in a second flexed state;

fig. 7 is similar to fig. 6, wherein the flexible display is in a third flexed state.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to a plurality of embodiments and accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

Please refer to fig. 1 and fig. 2, which are a schematic structural diagram of a display device 10 assembled with a flexible display screen and an exploded view of the display device 10 according to an embodiment of the present invention. The display device 10 includes a base 100, and a fixing component disposed on the base 100, the fixing component includes a first fixing component 20 and a second fixing component 20a disposed oppositely, the first fixing component 20 and the second fixing component 20a are respectively used for fixing a first end 30 and a second end 30a of a device 30 to be displayed. The first fixing member 20 includes a base 705 and a worm gear 603 rotatably coupled to the base 705. The outer surface of the worm wheel 603 is ring-shaped and has a plurality of teeth uniformly spaced thereon. A rotating shaft 613 is fixedly connected to the center of the worm wheel 603, and the diameter of the rotating shaft 613 is smaller than that of the worm wheel 603 and can rotate along with the worm wheel 603. The second fixing member 20a includes a base 705a and a worm gear 603a rotatably coupled to the base 705 a. The outer surface of the worm wheel 603a is ring-shaped and has a plurality of teeth uniformly spaced apart from each other. A rotating shaft 613a is fixedly connected to the center of the worm wheel 603a, and the diameter of the rotating shaft 613a is smaller than that of the worm wheel 603a and can rotate along with the worm wheel 603 a.

The first fixing assembly 20 further includes a first clamping portion 500 fixedly connected with the worm wheel 603. The second fixing member 20a further includes a second clamping portion 500a fixedly coupled to the worm wheel 603 a. The first clamping portion 500 and the second clamping portion 500a are used for clamping the device to be displayed 30. The first clamping portion 500 includes

clamping pieces

501 and 503 disposed opposite to each other in the up-down direction, and the first end 30 of the device to be displayed 30 is clamped between the

clamping pieces

501 and 503. The first clamping portion 500 further includes two

fastening members

512 and 514 for connecting the clamping piece 501 and the clamping piece 503. The

fastening pieces

512 and 514 are used for adjusting the clamping force of the clamping piece 501 and the clamping piece 503 on the device to be displayed 30. The second clamping portion 500a also includes

clamping pieces

501a, 503 a. The second end 30a of the device to be displayed 30 is sandwiched between the

clamping pieces

501a and 503a, and since the first clamping portion 500 and the second clamping portion 500a have the same structure, a repeated description thereof will not be provided.

The bottom of the first clamping portion 500 protrudes downwards to form two lugs. A support 715 is protruded upwardly from the top surface of the base 705. The support portion 715 is located between the two lugs. The supporting portion 715 has a through hole along the length direction thereof, and each of the lugs has a fixing hole aligned with the through hole. The rotation shaft 613 passes through the fixing holes of the lugs and the through holes of the supporting portion 715, so as to rotatably connect the worm wheel 603 to the base 705. The rotating shaft 613 is rotatably engaged with the through hole of the supporting portion 715, that is, the rotating shaft 613 can freely rotate in the through hole; the rotation shaft 613 is fixedly engaged with the fixing hole of the lug, that is, the rotation shaft 613 and the lug are fixed together, and the lug rotates along with the rotation shaft 613, so as to drive the first clamping portion 500 to rotate around the rotation shaft 613.

Accordingly, the bottom of the second clamping portion 500a protrudes downward to form two

lugs

516a, 518 a. A supporting portion 715a protrudes upward from the top surface of the base 705 a. The support portion 715a is located between the two

lugs

516a and 518 a. The supporting portion 715a has a through hole along the length direction thereof, and each of the lugs has a fixing hole aligned with the through hole. The rotation shaft 613a is inserted into the fixing hole of the lug and the through hole of the supporting portion 715a, so as to rotatably connect the worm wheel 603a to the base 705 a. The rotating shaft 613a is rotatably engaged with the through hole of the supporting portion 715a, that is, the rotating shaft 613a can freely rotate in the through hole; the rotating shaft 613a is fixedly engaged with the fixing holes of the

lugs

516a and 518a, that is, the rotating shaft 613a and the

lugs

516a and 518a are fixed together, and the

lugs

516a and 518a rotate along with the rotating shaft 613a, so as to drive the second clamping portion 500a to rotate around the rotating shaft 613 a.

The display device 10 further includes two

first driving members

401, 401a, the two

first driving members

401, 401a are respectively connected to the first and

second fixing members

20, 20a, and can drive the first and

second fixing members

20, 20a to rotate along a predetermined direction. Each first driving

part

401, 401a further comprises a stepping motor. Each of the

first driving members

401, 401a is disposed in an inclined manner, and the distance between the two

first driving members

401, 401a gradually decreases along the upward direction, even though the top portions of the two

first driving members

401, 401a are disposed opposite to each other and the bottom portions thereof are disposed opposite to each other. Each

first drive member

401, 401a includes a

rotatable worm

403, 403a, each

worm

403, 403a being in meshing engagement with a

respective worm gear

603, 603 a. The outer side surface of each

worm

403, 403a is provided with a clockwise or counter-clockwise distributed thread for engagement with the teeth of the

respective worm wheel

603, 603 a. The rotational axis of the

worm wheels

603, 603a is perpendicular to the rotational axis of the

worm wheels

403, 403 a. When the

worm

403, 403a rotates, the thread follows and then rotates the teeth of the

worm wheel

603, 603a, so that the

worm wheel

603, 603a rotates. The direction of rotation of the

worm

403, 403a determines the direction of rotation of the

worm wheel

603, 603a, for example, when the

worm

403, 403a rotates clockwise, the

worm wheel

603, 603a can rotate clockwise; when the

worm

403, 403a rotates counterclockwise, the

worm wheel

603, 603a may rotate counterclockwise, or vice versa, depending on the actual requirement. The

first driving parts

401, 401a are located at one side of the first and second fixed

assemblies

20, 20a, respectively, in this embodiment. It is understood that the number of the first driving parts can be more than two, which is more beneficial to driving the motion state of the fixing component to change.

In a specific embodiment, the device to be displayed 30 is a flexible display screen, and each of the

first driving members

401, 401a is a stepping motor. When the stepping motor operates, the worm 403 is driven to rotate, the thread follows the worm 403 to rotate, and then the tooth part of the worm wheel 603 is driven to rotate, so that the worm wheel 603 rotates, the worm wheel 603 drives the rotating shaft 613 to rotate, and the lug also follows the rotation, thereby driving the first clamping part 500 to rotate around the rotating shaft 613. Similarly, when the stepping motor is operated, the worm 403a is driven to rotate, the thread follows the worm 403a to rotate, and then the tooth portion of the worm wheel 603a is driven to rotate, so that the worm wheel 603a rotates, and further the worm wheel 603a drives the rotating shaft 613a to rotate, and the

lugs

516a and 518a also rotate, thereby driving the second clamping portion 500a to rotate around the rotating shaft 613 a. Therefore, the flexible display screen can be bent to a certain degree.

With reference to fig. 1 and fig. 2, the display apparatus 10 further includes a second driving part 701, wherein the second driving part 701 is connected to the first fixing element 20 and can drive the first fixing element 20 to move along the horizontal direction. The base 100 is provided with a slide rail 707, and the first fixing assembly 20 is mounted on the slide rail 707 and moves in a horizontal direction along the slide rail 707. The second driving part 701 is connected to the first fixing assembly 20 through a screw 703. The base 705 of the first fixing assembly 20 is provided with a screw hole, and the screw rod 703 is inserted into the screw hole. The screw 703, when rotated in the threaded hole, abuts the threads in the threaded hole, thereby driving the base 705 to move. The second driving part 701 drives the screw rod 703 to rotate, so as to drive the first fixing component 20 to move along the slide rail 701.

When the first fixing member 20 moves in the horizontal direction, the first driving part 401 also moves along with the first fixing member 20. It is understood that in other embodiments, when the second fixing assembly 20a moves in the horizontal direction, the first driving part 401a also moves along with the second fixing assembly 20 a. Thus, the first or

second clamping portion

501 or 501a can be moved in the horizontal direction while being rotated by a predetermined angle in the vertical direction.

In a specific embodiment, the second driving part 701 is a stepping motor, and the screw 703 is a lead screw. The stepping motor is connected with the screw rod, the base 705 and the base 705a are erected above the screw rod, the base 705 and the base 705a are provided with screw holes, and the screw rod penetrates through the screw holes. The lead screw rotates in the threaded hole and abuts against the threads in the threaded hole, thereby driving the base 705 and the base 705a to move. When the stepping motor operates, the screw rod is driven to rotate, and the screw rod drives the

bases

705 and 705a to move in the horizontal direction along the slide rail 707, so as to drive the first clamping part 500 and the second clamping part 500a to move in the horizontal direction. Therefore, the flexible display screen can be bent to a certain degree.

It can be understood that when the stepping motor operates, the screw rod may only drive the base 705 to move in the horizontal direction along the sliding rail 707, and the other base 705a is fixedly disposed above the base 100. Similarly, when the stepping motor operates, the screw rod may only drive the base 705a to move in the horizontal direction along the sliding rail 707, and the other base 705 is fixedly disposed above the base 100. The embodiment of the invention is not limited to this, and a plurality of bases erected on the slide rail can be arranged according to the requirement of dynamic display of the device to be displayed, so as to control the relative movement of different bases.

The display apparatus 10 further comprises a power source electrically connected to the device to be displayed 30 for energizing the device to be displayed 30, and a housing 800 covering the power source. Specifically, the device 30 to be displayed is a flexible display screen, and the power supply enables the flexible display screen to emit light to display pictures with good visual effects such as pictures, videos and animations.

It will be appreciated that in other embodiments, the device to be displayed 30 may comprise a flexible display touch screen or other flexible device requiring dynamic display.

The following description will be made by taking a flexible display screen as an example, in which the display device 10 of the present invention displays various motion states of the flexible display screen.

Referring to FIG. 4, a side view of display device 10 of FIG. 1 is shown with the flexible display in a flattened state. The first clamping portion 500 and the second clamping portion 500a respectively fix the first end 30 and the second end 30a of the flexible display screen opposite to each other. Under the driving of the second driving part 701, the screw 707 starts to rotate, and the base 705 is driven to move along the horizontal direction relative to the base 705 a. When the base 705 moves, the flexible display screen bends in the horizontal direction because the distance between the first end and the second end of the flexible display screen becomes smaller. In this embodiment, the first driving member 401 is connected to the base 705, and when the base 705 moves in the horizontal direction, the first driving member 401 is also driven to move in the same direction.

It is understood that in some embodiments, the first driving part 401a may be connected to the base 705a, and when the base 705a moves in the horizontal direction, the first driving part 401a is driven to move in the same direction. In other embodiments, the first driving member 401 may be connected to the base 705, the first driving member 401a may be connected to the base 705a, and the base 705a may respectively drive the driving member 401 and the driving member 401a to move in the horizontal direction.

Referring to fig. 5, fig. 5 is similar to fig. 4, wherein the flexible display screen is in a first bending state. At the same time as the second driving part 701 shown in fig. 4 starts operating, the first driving

parts

401 and 401a drive the

worms

403 and 403a to start rotating. The worm screws 403 and 403a drive the worm gears 603 and 603a to rotate, respectively, and further drive the fixing component 500 and the fixing component 500a to rotate in the same direction by the same preset angle, so that the flexible display screen starts to generate a wave motion state. In this embodiment, the first clamping portion 500 and the second clamping portion 500a rotate counterclockwise, and the size of the angle is related to the bending performance and the size of the flexible display. The rotation angle may be set according to the bending property and size of the flexible display screen. When the flexible display screen has excellent bending performance, the rotatable angle is large. Preferably, when the rotation angle is between 20 ° and 50 °, the flexible display screen is not damaged, and the display effect of the flexible display screen displayed by waves is optimal. In some embodiments, the direction of rotation of the fixing component may also be clockwise, and the invention is not limited thereto.

In some preferred embodiments, by controlling the time for the first clamping part 500 to move in the horizontal direction to be the same as the time for the first clamping part 500 to rotate in the vertical direction by a preset angle, it can be ensured that the flexible display screen is not subjected to a force exceeding the bending performance of the flexible display screen during the deformation process, thereby protecting the flexible display screen from being damaged.

Referring to fig. 6 and 7, there are shown side views of the device 10, wherein the flexible display screen is in the second bending state and the third bending state. After the flexible display screen is in a wave state, the second driving part 701 stops operating and the base 705 stops moving in the horizontal direction in order to continuously present the wave state. Meanwhile, the first driving part 401 drives the first clamping part 500 to rotate in the opposite direction by a preset angle, the first driving part 401a drives the second clamping part 500a to rotate in the opposite direction by a preset angle, and the rotating speeds of the first clamping part 500 and the second clamping part 500a are consistent. From the second motion state to the fourth motion state, the fixed component is changed from anticlockwise rotation to clockwise rotation by a certain angle. It will be appreciated that in some embodiments, display assembly 10 may be returned to the second state of motion from the fourth state of motion after being moved from the second state of motion to the fourth state of motion. The display content of the flexible display screen can be displayed and the good bending performance of the flexible display screen can be displayed after the cycle is repeated for many times.

Referring to fig. 7 and fig. 4, when the display is finished, the second driving part 701 drives the base 705 to retract to the position where the flexible display screen is flattened along the horizontal direction, and simultaneously the first driving

parts

401 and 401a drive the first clamping part 500 and the second clamping part 500a to rotate to the position parallel to the horizontal direction. It is understood that in some embodiments, the retraction of the base 705 and the rotation of the fixing assembly to the horizontal direction may be performed asynchronously, as long as the process of the flexible display screen being flattened without being excessively distorted and damaged by the external force is ensured.

The display device provided by the invention can enable the to-be-displayed device to dynamically display the bending performance of the to-be-displayed device, and can improve the visual effect of the to-be-displayed device in some scenes needing to display the bending state of the to-be-displayed device.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

A display device, comprising:

a base;

the fixing component is arranged on the base and comprises a first fixing component and a second fixing component, and the first fixing component and the second fixing component are respectively used for fixing a first end and a second end of a to-be-displayed device;

the first driving part is connected with the first fixing assembly and can drive the first fixing assembly to rotate along a preset direction.
The display apparatus as claimed in claim 1 wherein the first mounting assembly is provided with a clamp for clamping the device to be displayed, the first drive member being operable to drive the clamp to rotate relative to the base.
The display apparatus as claimed in claim 2, wherein the first fixing member comprises a base and a worm wheel rotatably connected to the base via a rotating shaft, and the worm wheel is fixedly connected to the clamping portion.
The display apparatus as claimed in claim 3 wherein said first drive member includes a rotatable worm, said worm being in meshing engagement with said worm gear, rotation of the worm causing rotation of the worm gear.
The display apparatus as claimed in claim 1, further comprising a second driving member connected to the first fixing member for driving the fixing member to move in the horizontal direction.
The display apparatus as claimed in claim 5 wherein the first drive member follows movement of the first stationary assembly as the first stationary assembly moves in the horizontal direction.
The display apparatus as claimed in claim 5, wherein the base is provided with a slide rail, and the first fixing member is erected on the slide rail and can move along the slide rail.
The display apparatus as claimed in claim 7, wherein the second driving member is connected to the first fixing member by a screw, and the second driving member drives the screw to rotate, so as to drive the first fixing member to move along the slide rail.
The display apparatus as claimed in claim 2, wherein the clamping portion comprises two clamping pieces and a fastening member, the two clamping pieces are disposed oppositely, and the fastening member is used for adjusting the clamping force of the two clamping pieces on the device to be displayed.
The display apparatus as claimed in claim 1 further comprising a power source electrically connected to the device to be displayed.
The display apparatus as claimed in claim 4 wherein the axis of rotation of the worm wheel is perpendicular to the axis of rotation of the worm.
The display apparatus as claimed in claim 4 wherein the outer surface of the worm wheel is provided with an annular arrangement of teeth and the outer surface of the worm is provided with a screw thread which engages the teeth.
The display apparatus as claimed in claim 1 wherein the first drive member is angularly disposed relative to the base.
A display device as claimed in claim 3, in which the base of the retaining portion projects with a lug and the base forms a support portion at the top thereof, the pivot passing through the lug and being in fixed engagement with the lug, the pivot also passing through the support portion and being in rotatable engagement with the support portion.
The display apparatus as claimed in claim 14 wherein the number of the lugs is two and the support portion is sandwiched between the lugs.