CN113530959B

CN113530959B - Display device

Info

Publication number: CN113530959B
Application number: CN202110703780.6A
Authority: CN
Inventors: 张晓音; 安平; 何永新
Original assignee: Shanghai Tianma Microelectronics Co Ltd
Current assignee: Shanghai Tianma Microelectronics Co Ltd
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2022-05-13
Anticipated expiration: 2041-06-24
Also published as: CN113530959A

Abstract

The invention discloses a display device, which belongs to the technical field of display and comprises a base, a linkage assembly and a flexible display screen, wherein the linkage assembly and the flexible display screen are arranged on the base; the base comprises a track, and the track at least comprises a first linear track and an arc track which are connected; the linkage assembly comprises a rotating main shaft and a plurality of rotating pieces sleeved with the rotating main shaft, the plurality of rotating pieces which are stacked comprise a first rotating piece and a plurality of second rotating pieces, the first rotating piece drives the plurality of second rotating pieces to move along the arc-shaped track, and the flexible display screen is stretched or contracted; when the flexible display screen is stretched, the display device comprises a plane display surface and a curved surface display surface; when the flexible display screen is retracted, the display device comprises only a flat display surface. The invention can realize the multi-direction display function of the plane and the curved surface so as to meet the display of more information quantity, and can at least keep the plane display surface for displaying even when the flexible display screen is folded, thereby being convenient for users to use and watch at any time.

Description

Display device

Technical Field

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

Background

With the progress of science and technology and the continuous development of display technology, the Organic Light-Emitting Diode (OLED) display technology gradually becomes the mainstream technology in the display field with its unique advantages of low power consumption, high saturation, fast response time, wide viewing angle and the like, and has a wide application prospect in vehicle-mounted, mobile phone, tablet, computer and television products in the future, especially a flexible display panel in the OLED display technology.

In the prior art, as for a flexible display device installed outdoors, single-sided flexible display is mostly adopted, namely, deformation display with a certain radian is realized on one side, and the display surface state is single; and the outdoor flexible display screen is large-scale display screen generally, is used for showing various different kinds of information, and often the volume is great, occupies very big space.

Therefore, the display device not only can be unfolded and folded through the flexible display screen to realize multi-side display in different states, and when the flexible display screen is unfolded, a multi-directional display surface can be realized to meet the requirement of displaying more information, so that the display device which is beneficial to reducing the occupied space of the device while avoiding the display surface being single is provided, and the technical problem to be solved by technical personnel in the field is urgently needed.

Disclosure of Invention

In view of this, the invention provides a display device to solve the problems that in the prior art, a large flexible screen mostly adopts single-sided flexible display, the display surface is single, the size is large, and a large space is occupied.

The invention discloses a display device, comprising: the flexible display screen comprises a base, a linkage assembly and a flexible display screen, wherein the linkage assembly and the flexible display screen are arranged on the base; the base comprises a track, and the track at least comprises a first linear track and an arc track which are connected; the linkage assembly comprises a rotating main shaft and a plurality of rotating pieces sleeved with the rotating main shaft, the rotating main shaft is inserted into a first end of the first linear track, and the first end is the end part of the first linear track far away from the arc track; the plurality of rotating sheets are arranged in a stacked mode, the plurality of stacked rotating sheets comprise a first rotating sheet and a plurality of second rotating sheets, and the plurality of second rotating sheets are positioned on one side, close to the base, of the first rotating sheet in the direction perpendicular to the plane where the base is positioned; the flexible display screen comprises a fixed end and a winding end which are oppositely arranged in the plane direction parallel to the base, the fixed end is connected with the first rotating sheet, and the part of the flexible display screen far away from the fixed end is wound on the rotating main shaft and is connected with the rotating main shaft through the winding end; the first rotating sheet of the linkage assembly drives the plurality of second rotating sheets to move along the arc-shaped track, and the flexible display screen is stretched or contracted; when the flexible display screen is stretched, the display device comprises a plane display surface and a curved surface display surface; when the flexible display screen is contracted, the display device only comprises a plane display surface; the orthographic projection of the planar display surface to the base is positioned in the first linear track, and the orthographic projection of the curved display surface to the base is positioned in the arc track.

Compared with the prior art, the display device provided by the invention at least realizes the following beneficial effects:

the display device can realize the expansion and the retraction of the flexible display screen through the flexible display screen, the linkage assembly, the structural parts with the first linear track, the arc track base and the like, can realize the display in multiple directions through the plane display surface and the curved surface display surface when the flexible display screen is expanded, realizes the multi-direction display function of the plane and the curved surface of the display device, so as to meet the display of more information, and can at least keep the plane display surface for displaying even when the flexible display screen is retracted, thereby being convenient for users to use and watch at any time. The linkage assembly comprises the rotating main shaft and the plurality of rotating pieces sleeved with the rotating main shaft, the flexible display screen can be driven to expand and contract along the direction of the arc-shaped track, the multidirectional display state is realized, the structure is simple, the operation is convenient, the occupied size is small, and the linkage assembly can also be used by the structure.

Of course, it is not necessary for any product in which the present invention is practiced to specifically achieve all of the above-described technical effects simultaneously.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a schematic perspective view of a display device in a display state according to an embodiment of the present invention;

FIG. 2 is a schematic top view of the structure of FIG. 1;

fig. 3 is a schematic perspective view of a display device according to another display state provided by an embodiment of the invention;

FIG. 4 is a schematic perspective view of FIG. 3 at another angle;

FIG. 5 is a schematic top view of the structure of FIG. 3;

FIG. 6 is a schematic diagram of the disassembled structure of FIG. 1;

FIG. 7 is a schematic illustration of a disassembled structure of the linkage assembly of FIG. 6;

FIG. 8 is a schematic top view of each rotating plate according to an embodiment of the present invention;

FIG. 9 is an enlarged schematic view of area A of FIG. 8;

FIG. 10 is another schematic top view of the structure of FIG. 3;

FIG. 11 is an enlarged schematic view of region B of FIG. 10;

FIG. 12 is a schematic cross-sectional view taken along line C-C' of FIG. 10;

FIG. 13 is a schematic view of a first sub-segment of a rotary plate according to an embodiment of the present invention;

FIG. 14 is a schematic view of another cross-sectional structure taken along the line C-C' in FIG. 10;

FIG. 15 is a schematic top view of a base according to an embodiment of the present invention;

FIG. 16 is a schematic view of an alternative cross-sectional configuration in the direction of C-C' of FIG. 10;

FIG. 17 is a schematic view of an alternative cross-sectional configuration in the direction of C-C' of FIG. 10;

FIG. 18 is a schematic view of an alternative cross-sectional configuration in the direction of C-C' of FIG. 10;

FIG. 19 is a schematic view of an alternative cross-sectional configuration in the direction of C-C' of FIG. 10;

FIG. 20 is a schematic view of an alternative cross-sectional configuration in the direction of C-C' of FIG. 10;

FIG. 21 is a schematic top view of a base according to an embodiment of the present invention;

FIG. 22 is a schematic cross-sectional view taken along line D-D' of FIG. 5;

FIG. 23 is a schematic top view of a base according to an embodiment of the present invention;

fig. 24 is a schematic view of another disassembled structure of fig. 1.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be discussed further in subsequent figures.

Referring to fig. 1 to 7 in combination, fig. 1 is a schematic perspective view of a display device in one display state according to an embodiment of the present invention, fig. 2 is a schematic top view of fig. 1, fig. 3 is a schematic perspective view of the display device in another display state according to the embodiment of the present invention, fig. 4 is a schematic perspective view of fig. 3 at another angle, fig. 5 is a schematic top view of fig. 3, fig. 6 is a schematic split view of fig. 1, fig. 7 is a schematic split view of the linkage assembly in fig. 6, and a display device 000 according to an embodiment of the present invention includes: the display device comprises a base 10, a linkage assembly 20 and a flexible display screen 30, wherein the linkage assembly 20 and the flexible display screen 30 are arranged on the base 10; the base 10 comprises a track 101, and the track 101 at least comprises a first linear track 101A and an arc track 101B which are connected;

the linkage assembly 20 includes a rotating main shaft 201 and a plurality of rotating pieces 202 sleeved with the rotating main shaft 201, the rotating main shaft 201 is inserted into the first end 101A1 of the first linear track 101A, and the first end 101A1 is an end of the first linear track 101A far away from the arc track 101B;

the plurality of rotating plates 202 are arranged in a stacked manner, the plurality of rotating plates 202 arranged in a stacked manner include a first rotating plate 202A and a plurality of second rotating plates 202B, and in a direction Z perpendicular to the plane of the base 10, the plurality of second rotating plates 202B are positioned on one side of the first rotating plate 202A close to the base 10;

the flexible display screen 30 comprises a fixed end 301 and a winding end 302 which are oppositely arranged in the plane direction parallel to the base 10, the fixed end 301 is connected with the first rotating sheet 202A, and the part of the flexible display screen 30 far away from the fixed end 301 is wound on the rotating spindle 201 and is connected with the rotating spindle 201 through the winding end 302;

the first rotating sheet 202A of the linkage assembly 20 drives the plurality of second rotating sheets 202B to move along the arc-shaped track 101B, and the flexible display screen 30 is stretched or contracted;

when the flexible display screen 30 is stretched, the display device 000 includes a flat display surface AA1 and a curved display surface AA 2; when the flexible display 30 is collapsed, the display device 000 comprises only the flat display surface AA 1; the orthographic projection of the plane display surface AA1 to the base 10 is located in the first linear track 101A, and the orthographic projection of the curved display surface AA2 to the base 10 is located in the arc track 101B.

Specifically, the display device 000 provided in the present embodiment at least includes a base 10, and a linkage assembly 20 and a flexible display screen 30 that are disposed on the base 10, wherein the base 10 is used as a bearing structure for disposing other structures of the display device 000 for implementing display thereon. The base 10 is provided with a rail 101, and optionally, the rail 101 is formed by the upper surface of the base 10 being recessed in a direction away from the upper surface. The track 101 at least includes a first linear track 101A and an arc track 101B connected to each other, as shown in fig. 6 and 7, the linkage assembly 20 disposed above the base 10 includes a rotating spindle 201 and a plurality of rotating pieces 202 sleeved with the rotating spindle 201, the rotating spindle 201 is inserted into a first end 101A1 of the first linear track 101A far away from the arc track 101B, the rotating spindle 201 can be used as a starting point for stretching the flexible display screen 30, and the flexible display screen 30 can be stretched above the base 10 along the first linear track 101A and the arc track 101B in sequence by the plurality of rotating pieces 202 of the linkage assembly 20. The plurality of rotating plates 202 of the linkage assembly 20 are stacked, the plurality of stacked rotating plates 202 include a first rotating plate 202A located at the top and a plurality of second rotating plates 202B located below the first rotating plate 202A, the fixed end 301 of the flexible display 30 is connected to the first rotating plate 202A, the portion of the flexible display 30 away from the fixed end 301 is wound on the rotating shaft 201, and is connected to the rotational shaft 201 by a winding end 302, when the flexible display 30 is not stretched (as shown in figures 1 and 2), that is, the orthographic projections of the plurality of stacked rotating sheets 202 to the base 10 are overlapped, most of the flexible display screen 30 is wound on the rotating spindle 201, the fixed end 301 side is connected with the first rotating sheet 202A, the display device 000 only leaves the flat display surface AA1, and the orthographic projection of the flat display surface AA1 to the base 10 is located in the first linear track 101A; when the flexible display screen 30 is stretched (as shown in fig. 3-5), that is, after the first rotating plate 202A of the linkage assembly 20 drives the plurality of second rotating plates 202B to move along the arc-shaped track 101B, so that the stacked rotating plates 202 are unfolded to form the state shown in fig. 5, most of the flexible display screen 30 originally wound on the rotating main shaft 201 is stretched and unfolded, and the flexible display screen 30 is driven to be unfolded along the arc-shaped track 101B along with the movement of the first rotating plate 202A, the display device 000 not only includes the original flat display surface AA1 but also includes a curved display surface AA2, wherein the forward projection of the flat display surface AA1 to the base 10 is still located in the first linear track 101A, and the forward projection of the curved display surface AA2 to the base 10 is located in the arc-shaped track 101B, so as to realize the multi-directional display function of the flat and curved surfaces of the display device 000, to show more display information.

The display device 000 of the embodiment can realize the expansion and retraction of the flexible display screen 30 through the flexible display screen 30, the linkage assembly 20 and the structural members with the bases of the first linear track 101A and the arc track 101B, when the flexible display screen 30 is expanded, the display in multiple directions can be realized through the plane display surface AA1 and the curved display surface AA2, the multi-direction display function of the plane and the curved surface of the display device 000 is realized, so that the display of more information can be met, and even when the flexible display screen 30 is folded, at least the plane display surface AA1 can be reserved for displaying, and the display device is convenient for users to use and watch at any time. The linkage subassembly 20 including rotatory main shaft 201 and a plurality of revolving fragments 202 that cup joint with rotatory main shaft 201 of this embodiment, not only can drive flexible display screen 30 along the direction expansion and the shrink of arc track 101B, realize multi-directional display state, moreover, the steam generator is simple in structure, and convenient for operation, it is small to occupy, can also pass through this structure, when the display device 000 of this embodiment is used as an outdoor application, satisfy the user demand of different weather conditions, as at ordinary times, flexible display screen 30 is packed up, only keep plane display face AA1 to supply the user to look over relevant display content, and in high temperature and sleet weather, can realize the tensile expansion of flexible display screen 30 through linkage subassembly 20, revolving fragment 202 after the expansion this moment can also play certain shielding effect.

It should be noted that, in this embodiment, the structure of the flexible display screen 30 is not specifically limited, and in specific implementation, the structure may be understood according to the structure of the flexible display panel in the related art, and details of this embodiment are not described herein.

In some alternative embodiments, please continue to refer to fig. 1-7 in combination, in this embodiment, the rotating plate 202 of the linkage assembly 20 includes a first sub-plate 2021 and a second sub-plate 2022 connected to each other; the extending direction of the first sub-sheet 2021 is parallel to the direction of the plane of the base 10, and the extending direction of the second sub-sheet 2022 intersects with the direction of the plane of the base 10;

one end of the first sub-sheet 2021 is sleeved with the rotating main shaft 201, the other end of the first sub-sheet 2021 is fixedly connected with one end of the second sub-sheet 2022, optionally, the first sub-sheet 2021 and the second sub-sheet 2022 may be integrally formed into an L-shaped rotating sheet 202 structure, and the orthographic projection of the other end of the second sub-sheet 2022 to the base 10 is located in the arc-shaped track 101B;

the fixed end 301 of the flexible display 30 is fixed to the second sub-sheet 2022 of the first rotating sheet 202A;

the display device 000 includes at least a first display state and a second display state:

as shown in fig. 1 and fig. 2, in the first display state, the flexible display 30 is contracted, the portion of the flexible display 30 away from the fixed end 301 is wound on the rotating spindle 201, the plurality of rotating sheets 202 are all located on one side of the arc-shaped track 101B close to the first linear track 101A, the display device 000 only includes the flat display surface AA1, and the orthographic projection of the flat display surface AA1 to the base 10 is located in the first linear track 101A;

as shown in fig. 3 to fig. 5, in the second display state, the first sub-sheet 2021 of the first rotating sheet 202A drives the first sub-sheets 2021 of the second rotating sheets 202B to move along the arc-shaped track 101B, the fixed end 301 of the flexible display 30 follows the second sub-sheets 2022 of the first rotating sheets 202A to move along the arc-shaped track 101B, the flexible display 30 is stretched, the display device 000 includes a curved display surface AA2 and a flat display surface AA1, a forward projection of the curved display surface AA2 to the base 10 is located in the arc-shaped track 101B, and a forward projection of the flat display surface AA1 to the base 10 is located in the first linear track 101A.

This embodiment explains that the specific structure of the rotary plate 202 may include a first sub-plate 2021 and a second sub-plate 2022 which extend in different directions and are connected to each other, as shown in fig. 6 and 7, the extending direction of the first sub-plate 2021 is parallel to the direction of the plane of the base 10, and the extending direction of the second sub-plate 2022 is crossed with the direction of the plane of the base 10; optionally, in the present embodiment, the extending direction of the second sub-sheet 2022 is perpendicular to the direction of the plane where the base 10 is located, that is, the extending direction of the second sub-sheet 2022 is parallel to the direction Z; one end of the first sub-sheet 2021 is sleeved with the rotating spindle 201, and optionally, the first sub-sheet 2021 of each rotating sheet 202 is provided with a positioning hole 2020 matched with the rotating spindle 201, so that the end of the rotating spindle 201 is inserted into the positioning hole 2020 to realize the sleeving of the rotating sheet 202 and the rotating spindle 201; optionally, the other end of the first sub-sheet 2021 and one end of the second sub-sheet 2022 are fixedly connected, and optionally, the first sub-sheet 2021 and the second sub-sheet 2022 may be integrally formed into an L-shaped structure of the rotating sheet 202, and the orthographic projection of the other end of the second sub-sheet 2022 to the base 10 is located in the arc-shaped track 101B, so that the second sub-sheet 2022 of the first rotating sheet 202A drives the second sub-sheets 2022 of the remaining second rotating sheets 202B to move along the arc-shaped track 101B, thereby forming a second display state of the display device 000. In addition, in the structure of the rotating sheet 202 in this embodiment, each first sub-sheet 2021 after being unfolded in the second display state may form a structure for shielding in high temperature and rainy and snowy weather, and each second sub-sheet 2022 after being unfolded in the second display state may form a supporting structure of the flexible display screen 30 corresponding to the curved display surface AA2, so as to realize the function of multi-directional display of the plane and the curved surface of the display device 000, and improve the stability of the entire display device 000 while displaying more display information.

In some alternative embodiments, please refer to fig. 1-7, 8, and 9 in combination, fig. 8 is a schematic top view of each rotating plate according to an embodiment of the present invention, fig. 9 is an enlarged schematic view of a region a in fig. 8, in this embodiment, each rotating plate 202 is stacked, and the first sub-plate 2021 of the first rotating plate 202A includes a first limiting hole 2021A;

the first sub-piece 2021 of the second rotating piece 202B includes a second position-limiting hole 2021B and a position-limiting post 2021C;

the plurality of second rotating pieces 202B include a second rotating piece 202B1 contacting the first rotating piece 202A, and a plurality of second rotating pieces 202B2 positioned at a side of the second rotating piece 202B1 close to the base 10;

in the plurality of stacked rotating pieces 202, the limit post 2021C of the second rotating piece 202B1 is inserted into the first limit hole 2021A of the first rotating piece 202A;

in the plurality of second rotating blades 202B2, the stopper 2021C of the second rotating blade 202B2 at the lower layer is inserted into the second stopper hole 2021B of the second rotating blade 202B2 at the upper layer.

In this embodiment, the structure of each rotating plate 202 is explained, the first sub-plate 2021 of each second rotating plate 202B is provided with a limiting post 2021C, the limiting post 2021C can be inserted into and matched with the second limiting hole 2021B of the first sub-plate 2021 of another second rotating plate 202B above the first sub-plate, and the first rotating plate 202A located at the uppermost layer of the stacked rotating plates 202 is inserted into and matched with the first limiting hole 2021A of the first rotating plate 202A through the limiting post 2021C on the first sub-plate 2021 of the second rotating plate 202B1 closest to the first rotating plate 202A, so that the first rotating plate 202A drives the second rotating plate 202B1 and the second rotating plate 202B1 to sequentially drive the second rotating plate 202B2 below the second rotating plate 202B 38b to sequentially expand with the rotating main shaft 201 as the center of the circle and the arc-shaped track 101B as the track, and when the first rotating plate 202A is stretched, the first sub-plate 202A slides in the first limiting post 2021C on the first sub-plate 202B 361 of the second rotating plate 202B1 in the first limiting hole 2021A to the first rotating plate 202A 2021A The limit posts 2021C on the first sub-plate 2021 of the second rotating plate 202B2 on the next layer slide in the second limit holes 2021B on the first sub-plate 2021 of the second rotating plate 202B2 on the upper layer to the limit positions, so that each rotating plate 202 is opened in a fan shape to form a second display state of the display device 000, thereby ensuring that the flexible display 30 is fixed on the base 10 and the operation is simple.

Optionally, as shown in fig. 2, fig. 8 and fig. 9, the first limiting hole 2021A and the second limiting hole 2021B in this embodiment are both waist-shaped holes, and the extending direction of the long axis K of each waist-shaped hole is the same as the extending direction of the arc-shaped rail 101B.

The embodiment further explains that the limiting posts 2021C for the rotating sheets 202 slide in the holes thereof to make the first limiting holes 2021A and the second limiting holes 2021B opened by each rotating sheet 202 be waist-shaped holes, and the extending direction of the long axis K of the waist-shaped holes is the same as the extending direction of the arc-shaped track 101B, so that the shielding area of each rotating sheet 202 after being opened in a fan shape is as large as possible, that is, the occupied area of the curved display surface AA2 of the stretched flexible display screen 30 in the direction of the arc-shaped track 101B is also as large as possible, thereby increasing the display area of the display device 000 in the second display state, and being beneficial to improving the satisfaction degree of users.

In some alternative embodiments, please continue to refer to fig. 1-7, in this embodiment, the second sub-sheet 2022 of the first rotating sheet 202A of the stacked rotating sheets 202 includes a roller 20221, the roller 20221 is located in the arc-shaped track 101B, and the second sub-sheet 2022 slides in the arc-shaped track 101B via the roller 20221.

The embodiment explains that the roller 20221 may be disposed on the first rotating sheet 202A located at the uppermost of the stacked plurality of rotating sheets 202, and optionally, the roller 20221 is disposed below the second sub-sheet 2022 of the first rotating sheet 202A, since the arc-shaped track 101B is formed on the base 10, and the unfolding of each rotating sheet 202 is performed by the traction of the first rotating sheet 202A, the sliding of the second sub-sheet 2022 of the first rotating sheet 202A in the arc-shaped track 101B may be achieved by mounting the roller 20221 at the bottom of the second sub-sheet 2022 of the first rotating sheet 202A, and then the second rotating sheet 202B is pulled to be unfolded together along the direction of the arc-shaped track 101B, so as to form the second display state of the display device 000. Moreover, since the roller 20221 of the embodiment is mainly used for sliding in the arc-shaped track 101B, the number of the rollers 20221 installed at the bottom of the second sub-piece 2022 of the first rotating sheet 202A may be one or two (two are illustrated in fig. 7), which avoids the occurrence of the phenomenon that too many installed rollers 20221 may cause unsmooth sliding and even jamming in the arc-shaped track 101B, and further, the embodiment installs the roller 20221 only at the bottom of the second sub-piece 2022 of the first rotating sheet 202A, which is beneficial for each rotating sheet 202 to smoothly spread along the arc-shaped track 101B.

In some alternative embodiments, please refer to fig. 1-7 with continued reference, in this embodiment, in the direction Z perpendicular to the plane of the base 10, one end of the rotation spindle 201 away from the base 10 includes a positioning end 2011, the first sub-piece 2021 of the rotation piece 202 includes a positioning hole 2020, and the positioning end 2011 is inserted into the positioning hole 2020;

a supporting plate 2012 is disposed at a side of the positioning end 2011 close to the base 10, and the first sub-sheet 2021 of the second rotating sheet 202B contacts the supporting plate 2012.

This embodiment explains that the structure that the plurality of rotating plates 202 are sleeved on the rotating spindle 201 can be realized by the positioning hole 2020 formed in the first sub-plate 2021 of the rotating plate 202 and the positioning end 2011 of the end of the rotating spindle 201 away from the base 10, that is, in the direction Z perpendicular to the plane of the base 10, the end of the rotating spindle 201 away from the base 10 is the positioning end 2011, the positioning hole 2020 is formed in the first sub-plate 2021 of the rotating plate 202, optionally, in the direction parallel to the plane of the first sub-plate 2021, the positioning hole 2020 is located at the end of the first sub-plate 2021 away from the arc-shaped rail 101B, the positioning end 2011 of the rotating spindle 201 is inserted into the positioning hole 2020 of the first sub-plate 2021, so as to realize the sleeved fixation of each rotating plate 202 and the rotating spindle 201, and realize the expansion of each rotating plate 202. Optionally, in this embodiment, a supporting plate 2012 is further disposed on a side, close to the base 10, of the positioning end 2011 of the rotating spindle 201, and the first sub-sheet 2021 of the second rotating sheet 202B contacts with the supporting plate 2012, so that the supporting plate 2012 can be used as a carrier of the first sub-sheet 2021 of each rotating sheet 202, and the first sub-sheet 2021 of each rotating sheet 202 is limited on the supporting plate 2012, and optionally, in a direction Z perpendicular to the plane of the base 10, the length of the rotating spindle 201 located above the supporting plate 2012 can be greater than or equal to the sum of thicknesses of all the first sub-sheets 2021 of each rotating sheet 202 after being stacked, so as to facilitate supporting each rotating sheet 202 at an end, far from the base 10, of the rotating spindle 201, to implement a certain height space on the base 10, and the space can be used for playing a role of shielding after each rotating sheet 202 is unfolded.

In some alternative embodiments, please refer to fig. 1-7, 10, 11 and 12 in combination, fig. 10 is another schematic top view structure of fig. 3, fig. 11 is an enlarged view of a region B in fig. 10, and fig. 12 is a schematic cross-sectional view taken along the direction C-C' in fig. 10, in this embodiment, the linkage assembly 20 further includes a plurality of fixed posts 203 (not filled in the drawing) and a rotating ring 204, the rotating ring 204 is sleeved outside the fixed posts 203, one ends of the fixed posts 203 are fixed to the first sub-piece 2021 of the rotating piece 202, and the other ends of the fixed posts 203 are close to the base 10 and do not contact with the base 10.

The embodiment explains that the linkage assembly 20 may further include a plurality of fixed posts 203 and a plurality of rotating rings 204, one rotating ring 204 is sleeved outside one fixed post 203, and one rotating ring 204 and one fixed post 203 are in a group, one first sub-plate 2021 is matched with the structures of the group of rotating rings 204 and the fixed posts 203, one end of the fixed post 203 sleeved with the rotating ring 204, which is far away from the base 10, is fixed with the first sub-plate 2021 of the rotating plate 202, i.e. the fixed post 203 and the rotating ring 204 may be entirely erected on the side of the second sub-plate 2022 of the rotating plate 202 (as shown in fig. 12), one end of the fixed post 203, which is far away from the base 10, is fixed with the first sub-plate 2021 of the rotating plate 202, and the rotating ring 204 is sleeved on the fixed post 203, so that the flexible display 30 can be attached to the rotating ring 204 when being unfolded along the arc-shaped track 101B, thereby ensuring that the flexible display 30 is stretched along a certain track, and at the same time when being unfolded along the arc-shaped track 101B, the friction between the flexible display screen 30 and the fixing column 203 is favorably reduced, and after the flexible display screen 30 is unfolded along the arc-shaped track 101B, the fixing column 203 plays a certain supporting role, so that the flatness of the curved display surface AA2 of the flexible display screen 30 is favorably improved. The other end of the fixing column 203, which is far away from the first sub-sheet 2021, is close to the base 10, but is not in contact with the base 10 (as shown in fig. 12), so that the bottom of the fixing column 203 can be prevented from being attached to the base 10 to hinder the flexible display 30 from being stretched, and the flexible display 30 can be smoothly unfolded to the second display state.

In some alternative embodiments, referring to fig. 1-7, 13 and 14 in combination, fig. 13 is a schematic structural diagram of a first sub-sheet of a rotating sheet according to an embodiment of the present invention, fig. 14 is a schematic sectional structural diagram along direction C-C' in fig. 10 (when the first sub-sheet 2021 is in the stretchable structure shown in fig. 13), in this embodiment, the first sub-sheet 2021 is in the stretchable structure.

This embodiment explains that the first sub-piece 2021 of the rotating plate 202 parallel to the plane of the base 10 may be a telescopic structure, as shown in fig. 13, optionally, the telescopic structure may be formed by sleeving a plurality of frames with different inner diameters, similar to the principle of a telescopic rod, so as to realize that the first sub-piece 2021 extends and contracts in the direction parallel to the plane of the base 10, so as to realize that the overall length of the first sub-piece 2021 is variable, thereby controlling the size of the space formed by the rotating plate 202 and the base 10 to vary, meeting the requirements of different numbers of users, and realizing the diversified display effect of the display device 000.

Optionally, referring to fig. 1-7, 13, 14 and 15 in combination, fig. 15 is a schematic top view structure of the base according to the embodiment of the present invention, and fig. 16 is another schematic cross-sectional structure along the direction C-C' in fig. 10 (when the first sub-sheet 2021 is the retractable structure shown in fig. 13, and the base 10 is the structure shown in fig. 15 and including a plurality of arc-shaped rails 101B), in this embodiment, when the first sub-sheet 2021 is the retractable structure shown in fig. 13 and 14, the number of the arc-shaped rails 101B includes a plurality (as shown in fig. 15), the distance from the plurality of arc-shaped rails 101B to the main axis of rotation 201 is different along the direction parallel to the plane of the base 10, and the second sub-sheet 2022 moves along the different arc-shaped rails 101B by stretching of the first sub-sheet 2021.

This embodiment illustrates that when the first sub-sheet 2021 of each rotating sheet 202 is of a stretchable construction, the length variation of the first sub-sheet 2021 can be controlled by the telescopic structure, so that the orthographic projection of the second sub-sheet 2022 of each rotary sheet 202 to the base 10 is located in different arc-shaped tracks 101B, thereby satisfying the requirements of different users by controlling the size of the space formed by the rotating piece 202 and the base 10 to be different, for example after shortening the length of the first sub-sheet 2021 in a direction parallel to the plane of the base 10, the orthographic projection of the second sub-sheet 2022 onto the base 10 is located within one of the arcuate tracks 101B (e.g. arcuate track 101B1 in figures 15 and 16) adjacent the spindle 201, at this time, the first rotating piece 202A pulls other second rotating pieces 202B to form a smaller space after being unfolded along the arc-shaped track 101B, so that the requirement of a small number of users (such as only one user) can be met; when the number of users is large, after the length of the first sub-piece 2021 in the direction parallel to the plane of the base 10 is lengthened, the orthographic projection of the second sub-piece 2022 to the base 10 is located in another arc-shaped track 101B (e.g., the arc-shaped track 101B3 in fig. 15 and fig. 16) away from the main rotating shaft 201, and then the space formed by drawing the other second rotating pieces 202B along the arc-shaped track 101B by the first rotating piece 202A is large, so that the requirement of the number of users can be met. In this embodiment, the first sub-sheet 2021 with a retractable structure and the plurality of arc-shaped tracks 101B with different lengths from the rotating main shaft 201 are arranged, and the size of the space formed by the rotating sheet 202 and the base 10 is controlled to be changed, so as to meet the requirements of users with different numbers, so that the display device is simple in structure, flexible and convenient, and can achieve the diversified display effect of the display device 000.

It should be noted that fig. 15 and fig. 16 of the present embodiment are only exemplified by the base 10 including three arc-shaped rails 101B, and distances from the three arc-shaped rails 101B to the rotating spindle 201 are different, in a specific implementation, the number of the arc-shaped rails 101B may be selected according to actual requirements, and the present embodiment is not particularly limited.

Optionally, as shown in fig. 15, the plurality of arc tracks 101B are a plurality of concentric circular arc structures, and an orthographic projection of the rotating spindle 201 to the base 10 is a circle center. This embodiment explains that when the first sub-sheet 2021 is in the extensible structure shown in fig. 13 and 14, the number of the arc-shaped tracks 101B includes a plurality as shown in fig. 15, and the distances from the plurality of arc-shaped tracks 101B to the main rotation axis 201 are different along a direction parallel to the plane of the base 10, each of the arc-shaped tracks 101B may be in a concentric arc structure with the main rotation axis 201 projecting to the front of the base 10 as a center, so that the distance between adjacent arc-shaped tracks 101B may be uniform, and the second sub-sheet 2022 of the rotating sheet 202 may be moved and unfolded along the arc-shaped track 101B.

In some alternative embodiments, please refer to fig. 1-7, fig. 13-14, fig. 17 and fig. 18 in combination, fig. 17 is another sectional structure diagram along the direction C-C 'in fig. 10, fig. 18 is another sectional structure diagram along the direction C-C' in fig. 10 (when the first sub-sheet 2021 is in the stretchable structure shown in fig. 13), in this embodiment, as shown in fig. 17, in the direction Z1 of the base 10 pointing to the first sub-sheet 2021, along the direction parallel to the plane of the base 10, the distance L1 from the curved display surface AA2 to the main axis of rotation 201 is gradually increased; alternatively, as shown in fig. 18, in a direction Z1 in which the base 10 points to the first sub-piece 2021, the distance L2 from the curved display surface AA2 to the main axis of rotation 201 decreases gradually along a direction parallel to the plane of the base 10.

This embodiment illustrates that, when the first sub-sheet 2021 is in the stretchable structure shown in fig. 13 and 14, by controlling the length extension of the first sub-sheet 2021 of each rotary sheet 202, furthermore, in the direction Z1 of the base 10 pointing to the first sub-piece 2021, along the direction parallel to the plane of the base 10, the distance L1 from the curved display surface AA2 to the main axis 201 of rotation gradually increases, i.e., the rotary pieces 202 form a space structure with the base 10 as shown in fig. 17, or may also be shortened by controlling the length of the first sub-pieces 2021 of the respective rotary pieces 202, furthermore, in the direction Z1 of the base 10 pointing to the first sub-piece 2021, along the direction parallel to the plane of the base 10, the distance L2 from the curved display surface AA2 to the main axis 201 of rotation gradually decreases, thereby meeting the requirements of different users for different inclination degrees of the curved display surface AA2 and realizing the diversified display effect of the display device 000.

In some alternative embodiments, please continue to refer to fig. 1-7, in this embodiment, the material of the rotating plate 202 is a transparent material.

The embodiment explains that the material for manufacturing the rotating sheet 202 of the linkage assembly 20 may be a transparent material, and optionally, the transparent material may further have a certain hardness, which may ensure the supporting and stabilizing effect of the rotating sheet 202 on the flexible display screen 30. In this embodiment, the material for manufacturing the rotating plate 202 is made of transparent material, and the display device 000 is in the second display state, that is, the first rotating plate 202A of the linkage assembly 20 drives the second rotating plates 202B to move along the arc-shaped track 101B, so that after the rotating plates 202 arranged in a stacked manner are unfolded to form the state shown in fig. 5, because the rotating plates 202 are made of transparent material, the internal illumination intensity of the space formed by the base 10 and the rotating plates 202 can be improved, in high-temperature and rainy and snowy weather, when the user unfolds the rotating plates 202 to perform a certain shielding function, the opaque rotating plates 202 are prevented from shielding the viewing line of sight of the user. Moreover, since the rotating sheet 202 is made of a transparent material, the curved display surface AA2 on the second sub-sheet 2022 side of the rotating sheet 202 can be prevented from being blocked, so as to meet the requirement of a user to view the curved display surface AA2 of the flexible display 30 in the space formed by the base 10 and the rotating sheet 202.

In some alternative embodiments, please refer to fig. 1-7, 10, 19 and 20 in combination, fig. 19 is a schematic view of another cross-sectional structure along the direction C-C 'in fig. 10, fig. 20 is a schematic view of another cross-sectional structure along the direction C-C' in fig. 10, in this embodiment, the flexible display 30 includes a substrate 30A and a display portion 30B located on the substrate 30A, and a side of the display portion 30B away from the substrate 30A is a display surface (i.e., a light-emitting surface of the flexible display 30);

the display part 30B is positioned on one side of the substrate 30A far away from the rotating main shaft 201 along the direction parallel to the plane of the base 10; alternatively, the display section 30B is located on the side of the substrate 30A close to the rotation spindle 201.

The present embodiment explains that the flexible display 30 may at least include a substrate 30A and a display portion 30B located on the substrate 30A, optionally, the flexible display 30 may include a flexible organic light emitting display panel, the display portion 30B may be an organic light emitting layer, one side of the display portion 30B away from the substrate 30A is a display surface, that is, the display surface represents a light emitting surface of the flexible display 30, that is, a side surface of a display screen can be seen by a user, the flexible display 30 of the present embodiment adopts the flexible organic light emitting display panel, which not only has a flexible effect, but also has advantages of low power consumption, high saturation, fast response time, wide viewing angle, and the like. Alternatively, as shown in fig. 19, the display part 30B is located on the side of the substrate 30A away from the spindle 201 in the direction parallel to the plane of the base 10, so that the function of the user viewing the flat display surface AA1 and the curved display surface AA2 outside the display device 000 can be realized; alternatively, as shown in fig. 20, the display portion 30B is located on the side of the display surface of the substrate 30 close to the spindle 201, so that the user can view the flat display surface AA1 and the curved display surface AA2 in the space formed by the rotating piece 202 and the base 10 of the display device 000, thereby achieving the diversified display effect of the display device 000.

In some optional embodiments, the flexible display screen 30 may further include a double-sided flexible display panel (not shown in the drawings), the images displayed on the double-sided display surface may be the same or different, and this embodiment is not specifically limited, thereby being beneficial to achieving the double-sided display effect of the display device 000, and a user may view the display information not only outside the display device 000, but also after the plurality of rotating sheets 202 are unfolded, the user may view the display information simultaneously inside a space formed by the rotating sheets 202 and the base 10, thereby satisfying different viewing requirements.

It can be understood that, in this embodiment, specific structures of the single-sided display flexible display panel 30 or the double-sided display flexible display panel 30 are not specifically limited, and in specific implementation, the structures of the flexible display panel or the double-sided flexible display panel in the related art may be referred to for understanding, and details of this embodiment are not described herein. Optionally, the rotating ring 204 and the fixing post 203 may also be made of transparent materials, so as to avoid the opaque materials from blocking the display effect of the flexible display screen 30.

In some alternative embodiments, please refer to fig. 1-7, 21 and 22 in combination, fig. 21 is another schematic top view of the base according to the embodiment of the present invention, fig. 22 is a schematic cross-sectional view along direction D-D' in fig. 5, in this embodiment, the arc-shaped track 101B includes a plurality of spaced latches 401 therein, the first rotating plate 202A includes a latch 402 thereon, optionally, the latch 402 may be disposed at an end portion of the second sub-plate 2022 of the first rotating plate 202A close to the base 10, and the first rotating plate 202A is fixed with the latch 401 at any position by the latch 402 when moving along the arc-shaped track 101B.

The embodiment explains that a plurality of latches 401 may be arranged at intervals in the arc-shaped track 101B, optionally, the number of the latches 401 may be selected according to the length of the arc-shaped track 101B, and further optionally, the distance between any two adjacent latches 401 may be the same. In the embodiment, the end portion of the second sub-piece 2022 of the first rotating piece 202A close to the chassis 10 is provided with the lock ring 402 matched with the lock catch 401, and when the second rotating piece 202B is unfolded along the direction of the arc-shaped track 101B together by the traction of the first rotating piece 202A to form the second display state of the display device 000, the lock ring 402 provided by the end portion of the second sub-piece 2022 of the first rotating piece 202A close to the chassis 10 is fixed with the lock catch 401 at any position in the arc-shaped track 101B, so that the rotating piece 202 is positioned and stopped, the size of the area where the curved display surface AA2 is unfolded can be flexibly selected, and the stability of the whole display device 000 can be improved.

In some optional embodiments, please refer to fig. 1-7 and fig. 23 in combination, fig. 23 is a schematic top view structure diagram of a base according to an embodiment of the present invention, in this embodiment, a rail 101 disposed on the base 10 is a fully-enclosed structure;

the track 101 further comprises a second linear track 101C, one end of the second linear track 101C is connected with one end of the arc-shaped track 101B, and the other end of the second linear track 101C is connected with the first linear track 101A, so that the track 101 in a full-surrounding structure is formed;

the first rotating plate 202A of the linkage assembly 20 drives the second rotating plates 202B to move along the arc-shaped track 101B and the second linear track 101C.

This embodiment further explains that the track 101 disposed on the base 10 may be a fully-enclosed structure, that is, the track 101 may include not only the first linear track 101A and the arc-shaped track 101B connected to each other, but also a second linear track 101C, wherein one end of the second linear track 101C is connected to one end of the arc-shaped track 101B, and the other end of the second linear track 101C is connected to the first linear track 101A, thereby forming a fully-enclosed structure track 101, the fully-enclosed structure track 101 may further move along the second linear track 101C after the plurality of second rotating pieces 202B are driven by the first rotating pieces 202A of the linkage assembly 20 to move along the arc-shaped track 101B, so that the flexible display screen 30 is further stretched to include a second planar display surface (not shown in the drawings), and at this time, the forward projection of the planar display surface AA1 to the base 10 is still located in the first linear track 101A, the orthographic projection of the curved surface display surface AA2 to the base 10 is positioned in the arc-shaped track 101B, and the orthographic projection of the second planar display surface to the base 10 is positioned in the second linear track 101C, so that the multidirectional display function of the plane and the curved surface of the display device 000 can be further realized, more display information can be displayed, and meanwhile, a basically closed space can be formed through the base 10 and the rotating sheet 202, and a better shielding effect can be favorably realized.

In some alternative embodiments, please refer to fig. 1-7 and fig. 24 in combination, fig. 24 is another schematic diagram of the disassembled structure of fig. 1, in this embodiment, the display device 000 further includes a cover plate 50, and in a direction Z perpendicular to the plane of the base 10, the cover plate 50 is located on a side of the base 10 away from the linkage assembly 20.

In the embodiment, it is explained that, in the direction Z perpendicular to the plane of the base 10, a cover plate 50 may be further disposed on one side of the base 10 away from the linkage assembly 20, optionally, the cover plate 50 and the surface of one side of the base 10 away from the linkage assembly 20 may be attached and fixed, the cover plate 50 performs a sealing and shielding function, when the display device 000 is used for outdoor display, a sealing effect may be performed through the cover plate 50, the display effect of the display device 000 is prevented from being affected by external environments such as moisture, soil, and the like, and the function of protecting the display device 000 is performed.

As can be seen from the above embodiments, the display device provided by the present invention at least achieves the following beneficial effects:

Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. A display device, comprising: the flexible display screen comprises a base, and a linkage assembly and a flexible display screen which are arranged on the base; the base comprises a track, and the track at least comprises a first linear track and an arc track which are connected;

the linkage assembly comprises a rotating main shaft and a plurality of rotating pieces sleeved with the rotating main shaft, the rotating main shaft is inserted into a first end of the first linear track, and the first end is the end part of the first linear track far away from the arc track;

the plurality of rotating sheets are arranged in a stacked manner, the plurality of rotating sheets arranged in the stacked manner comprise a first rotating sheet and a plurality of second rotating sheets, and the plurality of second rotating sheets are positioned on one side, close to the base, of the first rotating sheet in the direction perpendicular to the plane of the base;

the flexible display screen comprises a fixed end and a winding end which are oppositely arranged in the plane direction parallel to the base, the fixed end is connected with the first rotating sheet, and the part of the flexible display screen, which is far away from the fixed end, is wound on the rotating main shaft and is connected with the rotating main shaft through the winding end;

the first rotating sheet of the linkage assembly drives the second rotating sheets to move along the arc-shaped track, and the flexible display screen is stretched or contracted;

when the flexible display screen is stretched, the display device comprises a plane display surface and a curved surface display surface; when the flexible display screen is contracted, the display device only comprises the plane display surface; the orthographic projection of the planar display surface to the base is positioned in the first linear track, and the orthographic projection of the curved display surface to the base is positioned in the arc track.

2. The display device according to claim 1,

the rotating sheet comprises a first sub-sheet and a second sub-sheet which are connected with each other; the extending direction of the first sub-piece is parallel to the direction of the plane where the base is located, and the extending direction of the second sub-piece is intersected with the direction of the plane where the base is located;

one end of the first sub-piece is sleeved with the rotating main shaft, the other end of the first sub-piece is fixedly connected with one end of the second sub-piece, and the orthographic projection of the other end of the second sub-piece to the base is positioned in the arc-shaped track;

the fixed end of the flexible display screen is fixed on the second sub-sheet of the first rotating sheet;

the display device comprises at least a first display state and a second display state:

in the first display state, the flexible display screen is contracted, the part of the flexible display screen, which is far away from the fixed end, is wound on the rotating spindle, the plurality of rotating pieces are positioned on one side, which is close to the first linear track, of the arc-shaped track, the display device only comprises a plane display surface, and the orthographic projection of the plane display surface to the base is positioned in the first linear track;

under the second display state, first revolving fragment first sub-fragment drives a plurality of second revolving fragments first sub-fragment is followed arc orbital motion, flexible display screen the stiff end is followed first revolving fragment second sub-fragment is followed arc orbital motion, flexible display screen is stretched, display device include the curved surface show the face with the flat display face, the curved surface show the face the orthographic projection of base is located in the arc track, the flat display face the orthographic projection of base is located in the first linear track.

3. The display device according to claim 2,

the first sub-piece of the first rotating piece comprises a first limiting hole;

the first sub-piece of the second rotating piece comprises a second limiting hole and a limiting column;

the second rotating pieces comprise a second rotating piece contacted with the first rotating piece and a plurality of second rotating pieces positioned on one side of the second rotating piece close to the base;

in the plurality of rotating sheets which are arranged in a stacked manner, the limiting column of the second rotating sheet is inserted into the first limiting hole of the first rotating sheet;

in the plurality of second rotating slices, the limiting columns of the second rotating slices on the lower layer are inserted into the second limiting holes of the second rotating slices on the upper layer.

4. The display device according to claim 3, wherein the first position-limiting hole and the second position-limiting hole are both kidney-shaped holes, and a long axis direction of the kidney-shaped holes is the same as an extending direction of the arc-shaped rail.

5. The display device of claim 2, wherein the second sub-piece of the first rotating piece comprises a roller wheel, the roller wheel being positioned within the arcuate track, the second sub-piece sliding within the arcuate track via the roller wheel.

6. The display device according to claim 2, wherein in a direction perpendicular to the plane of the base, an end of the rotation main shaft away from the base includes a positioning end, the first sub-piece of the rotation piece includes a positioning hole, and the positioning end is inserted into the positioning hole;

one side of the positioning end close to the base is provided with a supporting plate, and the first sub-piece of the second rotating piece is in contact with the supporting plate.

7. The display device as claimed in claim 2, wherein the linkage assembly further comprises a plurality of fixing posts and a rotating ring, the rotating ring is sleeved outside the fixing posts, one end of each fixing post is fixed to the first sub-piece of the rotating piece, and the other end of each fixing post is close to the base and is not in contact with the base.

8. The display device according to claim 2, wherein the first sub-sheet is a stretchable structure.

9. The display device according to claim 8, wherein the number of the arc-shaped tracks comprises a plurality of arc-shaped tracks, the distances from the arc-shaped tracks to the main axis of rotation are different along the direction parallel to the plane of the base, and the second sub-sheet moves along the different arc-shaped tracks through the stretching of the first sub-sheet.

10. The display device according to claim 9, wherein the plurality of arc-shaped tracks are a plurality of concentric circular arc structures, and an orthographic projection of the main axis of rotation to the base is a center of the concentric circular arcs.

11. The display device according to claim 8,

in the direction of the base pointing to the first sub-sheet, along the direction parallel to the plane of the base, the distance from the curved display surface to the main rotation axis is gradually increased; or,

and in the direction of the base pointing to the first sub-sheet, along the direction parallel to the plane of the base, the distance from the curved display surface to the main rotation axis is gradually reduced.

12. The display device according to claim 1, wherein the material of the rotating sheet is transparent.

13. The display device according to claim 12, wherein the flexible display panel comprises a substrate and a display portion over the substrate, and wherein a side of the display portion away from the substrate is a display surface;

the display part is positioned on one side of the substrate away from the main rotation axis along the direction parallel to the plane of the base; alternatively, the display portion is located on a side of the substrate near the main axis of rotation.

14. The display device according to claim 1, wherein the arc-shaped track comprises a plurality of spaced-apart latches, the first rotary plate comprises a locking ring, and the first rotary plate is fixed with the latches at any position by the locking ring when moving along the arc-shaped track.

15. The display device according to claim 1, wherein the rail is a full-enclosure structure;

the rail also comprises a second linear rail, one end of the second linear rail is connected with one end of the arc rail, and the other end of the second linear rail is connected with the first linear rail;

the first rotating piece of the linkage assembly drives the second rotating pieces to move along the arc-shaped rail and the second linear rail.

16. The display device according to claim 1, further comprising a cover plate disposed on a side of the base away from the linkage assembly in a direction perpendicular to a plane of the base.