CN212782502U

CN212782502U - Display device

Info

Publication number: CN212782502U
Application number: CN202021077137.4U
Authority: CN
Inventors: 胡旭高; 王朝纲
Original assignee: Shenzhen Royole Technologies Co Ltd
Current assignee: Shenzhen Royole Technologies Co Ltd
Priority date: 2020-06-11
Filing date: 2020-06-11
Publication date: 2021-03-23
Anticipated expiration: 2030-06-11

Abstract

The utility model provides a display device, which comprises a winding drum, a bracket and a flexible screen, wherein one end of the flexible screen is fixedly connected with the winding drum, and the other end of the flexible screen is movably connected with the bracket through a sliding component; when the winding drum rotates forwards, the flexible screen is wound on the winding drum, and the support is close to the winding drum; when the winding drum rotates reversely, the support is far away from the winding drum and drives the flexible screen to be unfolded; and in the process of winding or unwinding the flexible screen, the other end of the flexible screen slides relative to the bracket through the sliding assembly. After the flexible screen of the display device provided by the utility model is wound, the display device has small volume and is convenient to carry; after the flexible screen is unfolded, the display device can meet diversified display requirements of users; the flexible screen can be prevented from being excessively stretched during winding or unwinding.

Description

Display device

Technical Field

The utility model relates to a show technical field, especially relate to a display device of flexible screen in area.

Background

Among the prior art, display device adopts the rigidity screen as the display screen mostly, leads to its bulky, portable not, and the display area is fixed moreover, can't satisfy the diversified demonstration demand of user.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a display device, which comprises a winding drum, a bracket and a flexible screen, wherein one end of the flexible screen is fixedly connected with the winding drum, and the other end of the flexible screen is movably connected with the bracket through a sliding assembly; when the winding drum rotates forwards, the flexible screen is wound on the winding drum, and the support is close to the winding drum; when the winding drum rotates reversely, the support is far away from the winding drum and drives the flexible screen to be unfolded; and in the process of winding or unwinding the flexible screen, the other end of the flexible screen slides relative to the bracket through the sliding assembly.

In one embodiment, the sliding assembly comprises a cross bar slidably disposed in the bracket and an elastic member connected between the cross bar and the bracket; the other end of the flexible screen is fixedly connected with the cross rod, when the other end of the flexible screen slides relative to the support, the cross rod is driven to slide relative to the support, and the elastic piece is elastically deformed.

In one embodiment, two opposite ends of the cross bar are respectively provided with a protruding column extending towards the winding drum in a protruding manner, the elastic member is a spring sleeved on the protruding column, the spring is abutted between the cross bar and the support and is always in a compressed state, and the spring generates elastic thrust which is abutted against and pushes the cross bar towards a direction away from the winding drum, so that the cross bar tensions the flexible screen.

In another embodiment, one side of the cross rod, which is far away from the winding drum, is symmetrically provided with at least one first hook part, one side of the support, which is far away from the winding drum, is provided with a second hook part corresponding to each first hook part, the elastic part is a tension spring which is hooked on the first hook part and the corresponding second hook part, the tension spring is always in a stretching state, and the tension spring generates elastic tension which pulls the cross rod towards the direction far away from the winding drum, so that the cross rod is tensioned to the flexible screen.

The support comprises a support body and a support cover plate covering the support body, a containing cavity is formed between the support body and the support cover plate, the cross rod is arranged in the containing cavity, and the elastic piece is connected between the cross rod and the support body.

In one embodiment, a bendable supporting element is fixedly connected between the reel and the bracket; when the winding drum rotates forwards, the supporting piece and the flexible screen are wound on the winding drum together and drive the support to be close to the winding drum; when the winding drum rotates reversely, the supporting piece is unfolded relative to the winding drum and pushes the support to be away from the winding drum, so that the support drives the flexible screen to be unfolded.

In one embodiment, the support members are two support sheets symmetrically disposed about a center line of the flexible screen, and each support sheet extends in a direction parallel to the center line.

Preferably, the support sheet has a rectangular cross section in a normal direction of the flexible screen; when the supporting sheet is straightened, the cross section of the supporting sheet in the normal direction of the flexible screen is arc-shaped.

In an embodiment, the display device further includes a housing, the drum is rotatably disposed in the housing, an accommodating cavity is formed between the housing and the drum, and the housing is provided with a through slot for the flexible screen and the supporting member to pass through; when the flexible screen and the supporting piece are wound on the outer peripheral surface of the winding drum, the flexible screen and the supporting piece are contained in the containing cavity.

In one embodiment, a driving member is disposed in the winding drum at a position close to one end, a driving shaft of the driving member passes through the winding drum and is fixed to an end of the housing close to the driving member, and the driving member is configured to drive the winding drum to rotate relative to the housing to wind or unwind the flexible screen.

In the display device provided by the utility model, one end of the flexible screen is fixedly connected with the winding drum, and the winding drum can wind the flexible screen by rotating the winding drum in the forward direction, so that the display device has small volume and is convenient to carry; the winding drum rotates reversely, the flexible screen can be unfolded for displaying, the winding drum rotates by different angles, the flexible screen can be unfolded by different areas, the area of the display device is correspondingly changed, and diversified display requirements of users can be met. In addition, the other end of the flexible screen is movably connected with the support through the sliding assembly, and in the winding or unwinding process of the flexible screen, the other end of the flexible screen can slide relative to the support through the sliding assembly so as to eliminate relative sliding between the flexible screen and the support, so that the flexible screen is prevented from being stretched excessively, and the flexible screen is protected.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of a display device in an embodiment of the present invention in a state where a flexible screen is unfolded.

Fig. 2 is a schematic perspective view of the display device in fig. 1 in a rolled state of the flexible screen.

Fig. 3 is a partially exploded perspective view of the display device of fig. 1.

Fig. 4 is a partially exploded perspective view of the drum, support and flexible screen of fig. 3.

Fig. 5 is a perspective view of fig. 4 from another angle.

Fig. 6 is an enlarged view of a portion XI in fig. 5.

Fig. 7 is a perspective view of the stent body in fig. 5.

Fig. 8 is a perspective view of fig. 3 from another angle.

Fig. 9 is a perspective view of fig. 3 from yet another perspective.

Fig. 10 is a perspective exploded view of the reel in fig. 4.

Fig. 11 is a perspective view of fig. 10 from another perspective.

Fig. 12 is a perspective view of fig. 10 from yet another perspective.

Fig. 13 is a partially assembled perspective view of the spool of fig. 11.

Fig. 14 is a perspective view of fig. 13 from another perspective.

Fig. 15 is a perspective view of the fixing member of fig. 8.

Fig. 16 is a perspective exploded view of the end cap assembly of fig. 8.

Fig. 17 is a perspective view of fig. 16 from another perspective.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1 to 6 together, fig. 1 is a schematic perspective view of a display device in an embodiment of the present invention in a flexible screen unfolding state, fig. 2 is a schematic perspective view of the display device in fig. 1 in a flexible screen rolling state, fig. 3 is a schematic perspective view of the display device in fig. 1, fig. 4 is a schematic perspective view of a reel, a bracket and a flexible screen in fig. 3, fig. 5 is a schematic perspective view of another view angle in fig. 4, and fig. 6 is an enlarged view of a portion XI in fig. 5. The utility model provides a display device 100, it includes reel 10, support 20 and flexible screen 30. One end of the flexible screen 30 is fixedly connected with the winding drum 10, and the other end of the flexible screen 30 is movably connected with the bracket 20 through a sliding assembly 40. When the winding drum 20 rotates forward, the flexible screen 30 is wound on the winding drum 10, and the bracket 20 is close to the winding drum 10; when the reel 10 rotates reversely, the bracket 20 moves away from the reel 10 and drives the flexible screen 30 to unfold. Specifically, the flexible screen 30 may be wound on the outer circumferential surface of the roll 10, or in other embodiments, the flexible screen 30 is wound inside the roll 10. Therefore, as shown in fig. 2, when the flexible screen 30 is not needed, the flexible screen 30 can be wound by rotating the winding drum 10 in the forward direction, so that the display device 100 is small in size and convenient to carry; as shown in fig. 1, when the flexible screen 30 needs to be used, the flexible screen 30 can be unfolded by reversely rotating the winding drum 10, the display device 100 displays the display through the unfolded part of the flexible screen 30, and the winding drum 10 can be rotated by different angles according to the display needs to unfold the flexible screen 30 by different areas, so that the area of the display device 100 is correspondingly changed, and the diversified display requirements of the user can be met. It should be noted that, during the process of winding or unwinding the flexible screen 30, that is, when the flexible screen 30 is bent, the other end of the flexible screen 30 may slide relative to the support 20 through the sliding assembly 40, so as to eliminate the relative sliding between the flexible screen 30 and the support 20, thereby preventing the flexible screen 30 from being over-stretched, and facilitating to protect the flexible screen 30.

Referring to fig. 3 to 7, fig. 7 is a schematic perspective view of the bracket body in fig. 5. In an embodiment, the bracket 20 includes a bracket body 21, a bracket cover plate 22 and a bracket top plate 23, the bracket cover plate 22 is used for covering the bracket body 21, the bracket top plate 23 is disposed on the top of the bracket body 21 and the bracket cover plate 22, which are covered together, and the three are detachably connected to the integrally formed bracket 20 by a screw or a snap manner. The sliding assembly 40 includes a cross bar 41 slidably disposed in the stand 20 and an elastic member 42 connected between the cross bar 41 and the stand 20. The other end of the flexible screen 30 is fixedly connected with the cross bar 41, and when the other end of the flexible screen 30 slides relative to the support 20, the cross bar 41 is driven to slide relative to the support 20, and the elastic member 42 is elastically deformed.

Specifically, as shown in fig. 5 and 7, the bracket body 21 includes a beam main body and two connecting blocks respectively connected to two opposite ends of the beam main body, the two connecting blocks are protruded from the beam main body toward the direction of the winding drum 10, and the bracket body 21 is substantially in a door-shaped structure. The crossbeam main part is seted up in one side towards support lid 22 along a first cross slot 211 that its length direction extends, first cross slot 211 break-through the crossbeam main part is close to one side of reel 10, two connecting blocks are seted up respectively and are erected a first groove 213 that extends towards reel 10, first perpendicular groove 213 does not break-through the connecting block is close to one side of reel 10, the relative both ends of first cross slot 211 communicate respectively in one the first perpendicular groove 213 of connecting block. As shown in fig. 4, the bracket cover 22 has a second transverse slot 221 corresponding to the first transverse slot 211 of the bracket body 21 on a side facing the bracket body 21, and a second vertical slot 223 corresponding to each first vertical slot 213 of the bracket body 21, the second transverse slot 221 penetrates through the bracket cover 22 on a side close to the winding drum 10, the second vertical slot 223 does not penetrate through the bracket cover 22 on a side close to the winding drum 10, and two opposite ends of the second transverse slot 221 are respectively connected to the second vertical slots 223. It can be understood that, when the bracket cover 22 covers the bracket body 21, the first transverse groove 211 is correspondingly communicated with the second transverse groove 221, and the two first vertical grooves 213 are respectively correspondingly communicated with the two second vertical grooves 223, so that a receiving cavity is formed between the bracket body 21 and the bracket cover 22, and an opening of the receiving cavity facing the winding drum 10 is formed on one side of the first transverse groove 211 and the second transverse groove 221 close to the winding drum 10.

As shown in fig. 5 and 6, the cross bar 41 is disposed in the receiving cavity of the bracket 20, and the elastic member 42 is connected between the cross bar 41 and the bracket body 21. In one embodiment, the cross bar 41 is substantially rectangular, two opposite ends of the cross bar 41 are respectively provided with an extending piece, each extending piece is convexly provided with a protruding pillar extending towards the winding drum 10, and the elastic element 42 is a spring sleeved on the protruding pillar.

In an embodiment, when the other end of the flexible screen 30 is movably connected to the bracket 20 through the sliding assembly 40, the other end of the flexible screen 30 is firstly fixed to one side of the cross bar 41 opposite to the bracket cover 22 by bonding with a double-sided adhesive or an optical adhesive, and two springs (i.e., elastic members 42) are respectively sleeved on the protruding columns at the two ends of the cross bar 41; then, the cross bar 41 is arranged in the first transverse groove 211 of the bracket body 21, two springs at two ends of the cross bar 41 are respectively arranged in two first vertical grooves 213 at two ends of the bracket body 21, and the two springs are abutted between the cross bar 41 and the bracket body 21; and finally, covering the bracket cover body 22 on the bracket body 21 to accommodate the cross rod 41 and the two springs in the accommodating cavity formed between the bracket body 21 and the bracket cover body 22, wherein the other end of the flexible screen 30 movably penetrates through an opening of the accommodating cavity, so that the other end of the flexible screen 30 is movably connected to the bracket 20 through the cross rod 41 and the two springs.

It can be understood that, when the other end of the flexible screen 30 slides relative to the bracket 20, the flexible screen 30 can drive the cross bar 41 to slide relative to the bracket body 21 in the accommodating cavity, and the two springs abutting against between the cross bar 41 and the bracket body 21 are elastically deformed. In particular, when the cross bar 41 approaches the reel 10 with respect to the support body 21, said spring is compressed; the spring is released when the cross bar 41 is moved away from the spool 10 relative to the stand body 21. Preferably, in an embodiment, the spring is configured to be always in a compressed state, and the spring can generate an elastic pushing force which pushes the cross bar 41 in a direction away from the winding drum 10, so that the cross bar 41 tensions the flexible screen 30 to prevent the flexible screen 30 from being wrinkled.

In other embodiments, the sliding assembly 40 may be a combination of the cross bar 41 and other elastic members 42, for example, one side of the cross bar 41 away from the winding drum 10 may be symmetrically provided with at least one first hooking portion, one side of the support body 21 away from the winding drum 10 is provided with a second hooking portion corresponding to each of the first hooking portions, and the elastic members 42 are tension springs hooked on the first hooking portions and the corresponding second hooking portions, so that the other end of the flexible screen 30 can be movably connected to the support 20. Preferably, the tension spring is configured to be always in a tension state, and the tension spring generates an elastic tension force that pulls the cross bar 41 in a direction away from the winding drum 10, so that the cross bar 41 tensions the flexible screen 30, and also prevents the flexible screen 30 from being wrinkled.

Referring to fig. 4, 5, 8 and 9, fig. 8 is a schematic perspective view of another view angle of fig. 3, and fig. 9 is a schematic perspective view of another view angle of fig. 3. In one embodiment, a flexible supporting member 50 is fixedly connected between the winding drum 10 and the bracket 20, when the winding drum 10 rotates forward, the supporting member 50 and the flexible screen 30 are wound on the winding drum 10 together, and the supporting member 50 drives the bracket 20 to approach the winding drum 10; when the winding drum 10 rotates reversely, the supporting member 50 unwinds relative to the winding drum 10 and pushes the bracket 20 away from the winding drum 10, so that the bracket 20 drives the flexible screen 30 to unwind. Wherein, the supporting member 50 is disposed on a side of the flexible screen 30 facing the winding drum 10, that is, the supporting member 50 is located on a non-display surface side of the flexible screen 30. It is understood that, when the flexible screen 30 and the support member 50 are wound on the outer circumferential surface of the roll 10, the flexible screen 30 and the support member 50 are stacked in the radial direction of the roll 10.

Specifically, as shown in fig. 8 and 9, in an embodiment, the supporting member 50 is two supporting sheets symmetrically disposed about the center line L of the flexible screen 30, and each of the supporting sheets extends along a direction parallel to the center line L. Obviously, in other embodiments, the support member 50 may be a plurality of support sheets symmetrically disposed on the center line L of the flexible screen 30.

Wherein, each support piece is made of a material with a shape memory function, and preferably a metal material such as stainless steel.

As shown in fig. 4, in an embodiment, the winding drum 10 includes a winding drum seat 11, an outer wall of the winding drum seat 11 is provided with a mounting plane 118 extending along an axial direction of the winding drum 10, and one end of each of the two supporting pieces is fixedly connected to the two opposite ends of the mounting plane 118. Specifically, two opposite ends of each support piece are respectively provided with a pair of through holes, two opposite ends of the mounting plane 118 are respectively and correspondingly provided with a pair of threaded holes (not shown), one end of each support piece is respectively attached to the two opposite ends of the mounting plane 118, the through hole at one end of each support piece is correspondingly communicated with the threaded hole at one end of the mounting plane 118, and a screw passes through the through hole and is in threaded connection with the threaded hole, so that one end of each support piece is in threaded connection with one end of the mounting plane 118, and one end of each support piece is respectively in threaded connection with the two opposite ends of the mounting plane 118.

Further, as shown in fig. 4, the bracket cover 22 is substantially rectangular, and a pair of threaded holes are respectively formed at opposite ends of the bracket cover 22 in the length direction thereof. One end of each support sheet, which is far away from the reel 10, is respectively attached to the two opposite ends of one side, facing the support body 21, of the support cover plate 22, a through hole at one end, which is far away from the reel 10, of each support sheet is correspondingly communicated with a threaded hole at one end of the support cover plate 22, and a screw penetrates through the through hole and is in threaded connection with the threaded hole, so that one end, which is far away from the reel 10, of each support sheet is in threaded connection with one end of the support cover plate 22, and the other ends, which are far away from the reel 10, of each support sheet are respectively in threaded connection with the two opposite ends of the support cover plate 22, so that the two opposite ends of each support sheet are.

In other embodiments, when the supporting members 50 do not need to be disassembled, the opposite ends of each supporting member can be fixedly connected to the reel 10 and the bracket 20 by gluing or welding.

Preferably, in an embodiment, the support sheet is a stainless steel sheet with a curved strip shape, and a concave side of the support sheet faces the flexible screen 30. When the support 50 is wound around the outer circumferential surface of the drum 10 with the forward rotation of the drum 10, the support sheet is bent, and the cross section of the support sheet in the normal direction of the flexible screen 30 is rectangular; when the support 50 is unwound from the roll 10 with the reverse rotation of the roll 10, the support sheet is straightened, and the cross section of the support sheet in the normal direction of the flexible screen 30 is arc-shaped. It can be understood that, when the supporting member 50 wound around the outer circumferential surface of the winding drum 10 is unfolded and straightened relative to the winding drum 10, the cross-sectional shape of the supporting sheet is changed from a rectangular shape to an arc shape, and as can be known from the principle of material mechanics, the bending-resistant cross-sectional coefficient of the arc-shaped cross-section is greater than that of the rectangular cross-section, so that the supporting sheet in the straightened state has good bending resistance and can stand upright, and the supporting sheet can stably support the bracket 20 along the vertical direction, thereby stably supporting the flexible screen 30 connected to the bracket 20, and being beneficial to ensuring that the unfolded flexible screen 30 does not shake during display.

Referring to fig. 4 and 5 again, one end of the flexible screen 30 away from the bracket 20 is pressed and fixed on the mounting plane 118 of the outer wall of the roll base 11 by a pressing plate 32, and an elastic gasket 34 is disposed between the flexible screen 30 and the pressing plate 32 to prevent the flexible screen 30 from being damaged by the pressing plate 32.

Specifically, as shown in fig. 4, in an embodiment, the mounting plane 118 is provided with a strip-shaped groove 1182 communicating with the inner cavity of the winding drum 10, each end of the mounting plane 118 is provided with a locking hole 1184, the pressing plate 32 is a strip-shaped plate with an arc surface, two opposite ends of the pressing plate 32 are provided with a through hole 324, and the through holes 324 at two ends of the pressing plate 32 correspond to the locking holes 1184 at two ends of the mounting plane 118 one by one. The threaded holes at the two opposite ends of the mounting plane 118 are located between the locking hole 1184 and the strip-shaped groove 1182 at the corresponding end and are close to the locking hole 1184.

In an embodiment, when one end of the flexible screen 30 is fixedly connected to the winding drum 10, first, one end of the flexible screen 30 is attached to the mounting plane 118 of the winding drum 10, and the two support plates screwed to the two opposite ends of the mounting plane 118 are respectively covered on the two opposite sides of the flexible screen 30 along the axial direction of the winding drum 10; then, the elastic gasket 34 is stacked on the flexible screen 30, and then the pressing plate 32 is stacked on the elastic gasket 34, so that the through holes 324 at the two ends of the pressing plate 32 are in one-to-one correspondence communication with the locking holes 1184 at the two ends of the mounting plane 118; finally, the screw is threaded through the through hole 324 and into the corresponding locking hole 1184, so as to tightly fix one end of the flexible screen 30 to the mounting plane 118.

Alternatively, one end of the flexible screen 30 may be adhered to the mounting plane 118 by double-sided adhesive or optical glue, and then pressed and fixed by the pressing plate 32, which is beneficial to improving the connection reliability between the flexible screen 30 and the roll 10.

After the pressing plate 32 is pressed on the mounting plane 118, the arc surface of the pressing plate 32 and the outer peripheral surfaces of the winding drum seat 11 on the two opposite sides of the mounting plane 118 form a complete circumferential surface.

It should be noted that one end of the flexible screen 30 fixedly connected to the winding drum 10 is electrically connected to a flexible circuit board (not shown), and the flexible circuit board penetrates into the inner cavity of the winding drum 10 through the strip-shaped groove 1182 on the mounting plane 118 and is electrically connected to a main board (not shown) in the winding drum 10, so that the flexible screen 30 is electrically connected to the main board. The flexible circuit board may be a part of the flexible screen 30 itself, or may be a separate flexible circuit board.

Further, referring to fig. 10 to 14, fig. 10 is a schematic perspective exploded view of the reel in fig. 4, fig. 11 is a schematic perspective view of another view angle of fig. 10, fig. 12 is a schematic perspective view of still another view angle of fig. 10, fig. 13 is a schematic perspective view of the reel in fig. 11 partially assembled, and fig. 14 is a schematic perspective view of another view angle of fig. 13. The reel 10 further comprises a reel cover 12 detachably matched with the reel seat 11, and the reel seat 11 and the reel cover 12 cover to form an inner cavity. A driving member 13, a rotating conductive member 14, and a battery 15 and a main board 16 between the driving member 13 and the rotating conductive member 14 are disposed in the inner cavity of the reel 10 along the axial direction thereof. Wherein, the battery 15 and the main board 16 are arranged at intervals along the radial direction of the reel 10, and the main board 16 is electrically connected with the driving member 13, the rotating conductive member 14 and the battery 15 respectively. The battery 15 can supply electric power to the main board 16 and the driver 13 electrically connected to the main board 16.

It should be noted that, the main board 16 is provided with a plurality of electronic components and antennas, and the electronic components and the antennas are used for realizing various functions and signal transmission; the main board 16 is further provided with a plurality of connectors for electrically connecting the driving member 13, the rotating conductive member 14, the battery 15 and the like; the driving member 13 is a micro motor or a motor, and the battery 15 is a rechargeable battery.

As shown in fig. 10 to 12, the winding drum holder 11 includes a semi-cylindrical groove 111, a first end plate 112 connected to one end of the groove 111, and a second end plate 113 connected to the other end of the groove 111, where the first end plate 112 and the second end plate 113 are both circular plates.

Two mounting frames 114 for mounting the battery 15 are oppositely arranged in the groove 111 at positions close to the two ends, and a receiving space is formed between each mounting frame 114 and the end plate at the corresponding end. A pair of first connecting posts 115 for detachably connecting the reel cover 12 are disposed at two opposite ends of each accommodating space, and each first connecting post 115 partially protrudes out of the slot 111 and is axially provided with a threaded hole. A plurality of second connecting columns 116 for mounting the main board 16 are further arranged in the groove 111, and a part of each second connecting column 116 protrudes out of the groove 111 and is provided with a threaded hole along the axial direction. In one embodiment, a pair of second connecting posts 116 is disposed in each of the receiving spaces at a side close to the mounting frame 114; correspondingly, the main board 16 has a plurality of through holes corresponding to the plurality of second connecting posts 116. In addition, at least one third connecting pole 117 is further disposed in the accommodating space near the second end plate 113, and the third connecting pole 117 is used for installing a fixing frame 145. In one embodiment, the number of the third connecting posts 117 is two, and each third connecting post 117 is axially provided with a threaded hole; the fixing frame 145 includes a fixing frame body 1452 and a pair of connecting seats 1454 disposed at two opposite ends of the fixing frame body 1452, each connecting seat 1454 is symmetrically provided with a pair of through holes about two sides of the fixing frame body 1452, the through holes correspond to the third connecting posts 117 one to one, and the fixing frame 145 can be fixed in the accommodating space of the slot 111 near the second end plate 113 by passing screws through the through holes and screwing with the threaded holes of the third connecting posts 117.

Wherein the fixing frame 145 is used for installing the rotating conductive member 14. Specifically, in an embodiment, the fixing frame body 1452 defines a mounting hole 1456, the fixing frame body 1452 further defines a plurality of connection posts with threaded holes protruding around an edge of the mounting hole 1456 on a side facing the second end plate 113, and the housing of the rotating conductive member 14 defines a plurality of through holes corresponding to the connection posts. When the shell of the rotating conductive piece 14 is installed at the installation hole 1456, the connection column on the fixing frame body 1452 is inserted into the through hole on the shell of the rotating conductive piece 14, and the screw is screwed into the threaded hole of the connection column so that the nut of the screw abuts against the shell of the rotating conductive piece 14, thereby realizing the screwed fixation of the fixing frame 145 and the rotating conductive piece 14, the installation stability of the rotating conductive piece 14 is higher, and the connection column can play a role of positioning when being inserted into the through hole on the shell of the rotating conductive piece 14, which is beneficial to the rapid installation of the rotating conductive piece 14.

In other embodiments, the rotating conductive member 14 is fastened to the mounting hole 1456 of the fixing frame body 1452 in an interference fit manner, and the fixing frame body 1452 may not be provided with a connecting column.

Further, the outer wall of the tank body 111 is provided with the aforementioned mounting plane 118. In an embodiment, the mounting plane 118 and the two mounting frames 114 are disposed on the inner side and the outer side of the groove 111 in a back-to-back manner, and the strip-shaped groove 1182 is disposed in an area between the two mounting frames 114 and the mounting plane 118.

An annular first rotating shaft 1121 is convexly arranged on one side of the first end plate 112, which is far away from the groove body 111, and the axial lead of the first rotating shaft 1121 coincides with the axial lead of the winding drum 10. The first end plate 112 has a mounting hole 1123 formed in a middle region of the first rotating shaft 1121, the mounting hole 1123 communicating with the inside of the groove 111, and the driving member 13 is mounted on the mounting hole 1123. Specifically, the driving member 13 includes a driving member body and a driving shaft 135 protruding from a side of the driving member body away from the slot 111, the driving member 13 body is accommodated in the accommodating space adjacent to the first end plate 112, and the driving shaft 135 of the driving member 13 passes through the mounting hole 1123 and is exposed outside the winding drum 10. In one embodiment, in order to ensure that the driving member 13 is reliably mounted, the first end plate 112 has a plurality of through holes around the edge of the mounting hole 1123, and the housing of the driving member 13 has a plurality of connecting posts with threaded holes. When the driving piece 13 is installed in the mounting hole 1123, the through hole at the edge of the mounting hole 1123 is communicated with the threaded hole of the connecting column on the casing of the driving piece 13, and the driving piece 13 and the first end plate 112 can be fixed in a threaded manner by using screws, so that the stability of the driving piece 13 is enhanced, and the driving piece 13 is convenient to detach.

In other embodiments, when the driving member 13 does not need to be frequently disassembled, the driving member 13 may be fastened to the mounting hole 1123 of the first end plate 112 by interference fit.

One side of the second end plate 113, which is away from the groove 111, is convexly provided with a circular second rotating shaft 1132, and an axial line of the second rotating shaft 1132 coincides with an axial line of the winding drum 10, that is, the first rotating shaft 1121 and the second rotating shaft 1132 are coaxial. The second end plate 113 is provided with a circular hole 1134 in the middle region of the second rotating shaft 1132, the circular hole 1134 is used for the rotating conductive member 14 to pass through. Specifically, the rotating conductive device 14 includes a rotating conductive device body and a first connector 141 and a second connector 142 respectively disposed at two opposite ends of the rotating conductive device body, the rotating conductive device body 14 is accommodated in the accommodating space adjacent to the second end plate 113, and the first connector 141 of the rotating conductive device 14 passes through the circular hole 1134 and is exposed outside the drum 10.

Preferably, in an embodiment, the outer diameters of the first rotating shaft 1121 and the second rotating shaft 1132 are equal, and are used for sleeving the same bearing 17. Specifically, the two bearings 17 are respectively sleeved and fixed on the first rotating shaft 1121 and the second rotating shaft 1132, inner rings of the bearings 17 are sleeved and fixed on the outer peripheral surfaces of the corresponding rotating shafts, an end face of one end of each bearing 17 abuts against a corresponding end plate, and an end face of the other end of each bearing 17, which is far away from the end plate, is flush with or close to the end faces of the first rotating shaft 1121 and the second rotating shaft 1132.

In other embodiments, the outer diameters of the first rotating shaft 1121 and the second rotating shaft 1132 may be unequal, and are respectively sleeved with bearings having the same outer diameter and different inner diameters.

As shown in fig. 10 and 11, the roll cover 12 includes a semi-cylindrical cover body 121, two opposite ends of the cover body 121 are respectively provided with a fourth connecting column 125, and the fourth connecting columns 125 correspond to the first connecting columns 115 at two opposite ends of the groove body 111 of the roll seat 11 one by one. In one embodiment, the diameter of the fourth connecting post 125 is larger than the diameter of the first connecting post 115, and the end of the fourth connecting post 125 has a sinking groove, and the bottom of the sinking groove has a through hole penetrating through the cover 121 along the axial direction. When the winding drum cover 12 is covered on the winding drum seat 11, the part of the first connecting column 115 protruding out of the groove body 111 is accommodated in the sink groove at the end part of the fourth connecting column 125, the through hole of the fourth connecting column 125 is communicated with the threaded hole of the first connecting column 115, a screw passes through the through hole of the fourth connecting column 125 and is in threaded connection with the threaded hole of the first connecting column 115, and the winding drum cover 12 is detachably connected with the winding drum seat 11.

In other embodiments, the spool cover 12 and the spool base 11 can be detachably connected in other manners, for example, the fourth connecting column 125 and the first connecting column 115 can be provided with a snap structure, and the spool cover 12 and the spool base 11 are snap-connected.

Referring to fig. 11, 13 and 14, when assembling the reel 10, first, the opposite ends of the battery 15 are correspondingly installed in the two installation frames 114, and the battery 15 is fixed in the groove 111 by the fixing frame 155; then, the driving piece 13 is fixed at the mounting hole 1123 of the first end plate 112, the fixing frame 145 is screwed and fixed in the accommodating space of the groove body 111 adjacent to the second end plate 113 by a plurality of screws, and the rotating conductive piece 14 is fixed at the mounting hole 1456 of the fixing frame 145; then, the main board 16 is quickly positioned by matching the positioning columns on the groove body 111 with the positioning holes on the main board 16, so that the through holes on the main board 16 are correspondingly communicated with the threaded holes of the second connecting posts 116, and screws penetrate through the through holes on the main board 16 and are in threaded connection with the threaded holes of the second connecting posts 116, so that the main board 16 is in threaded connection with the winding drum seat 11; and finally, covering the reel cover 12 on the reel seat 11, and utilizing a plurality of screws to carry out screw connection and fixation to complete the assembly of the reel 10.

It is understood that when the length of the body of the driving member 13 and/or the body of the rotating conductive member 14 in the axial direction of the reel 10 is long, an end portion of the body of the driving member 13 and/or the body of the rotating conductive member 14 away from the corresponding end plate thereof is accommodated in the space between the battery 15 and the main board 16 in the radial direction of the reel 10.

As shown in fig. 11, in an embodiment, the fixing frame 155 is a U-shaped frame structure. The two opposite sides of the fixing frame 155 are respectively provided with a connecting pin 1552 with a through hole, a pair of fifth connecting pins 119 is arranged in the groove body 111 corresponding to the two connecting pins 1552 of the fixing frame 155, each fifth connecting pin 119 is axially provided with a threaded hole, the frame body of the fixing frame 155 is clamped and sleeved on the main body of the battery 15, the through holes of the connecting pins 1552 are correspondingly communicated with the threaded holes of the fifth connecting pins 119, and the fixing frame 155 and the groove body 111 are fixed in a threaded manner by screws. The frame of the fixing frame 155 is further provided with a pair of support pieces 1554 extending away from the battery 15. When the main board 16 is fixed on the reel seat 11, the side of the main board 16 facing the battery 15 abuts against the supporting pieces 1554, and the pair of supporting pieces 1554 and the plurality of pairs of second connecting posts 116 support the main board 16 together. Preferably, in an embodiment, the inner side of the spool cover 12 is provided with a plurality of supporting blocks (shown in fig. 10), and when the spool cover 12 covers the spool seat 11, the supporting blocks abut against a side of the main board 16 facing away from the battery 15, so that opposite sides of the main board 16 are supported, which is beneficial to improving the stability of the main board 16 installed in the spool 10. Optionally, the outer wall of the spool cover 12 is hollowed out in the area corresponding to the support blocks to reduce the overall weight of the spool 10.

As shown in fig. 11, 13 and 14, when the driving member 13 and the rotating conductive member 14 are respectively fixed at two opposite ends of the reel seat 11, the driving shaft 135 penetrates through an end surface of the first rotating shaft 1121 in the axial direction of the first rotating shaft 1121, and the driving shaft 135 penetrates through an end portion of one end of the reel 10; the first connector 141 penetrates through the end surface of the second shaft 1132 from the circular hole 1134 of the second end plate 113, and the first connector 141 is used for electrically connecting an expansion circuit board (shown in the figure); the second connector 142 is located between the battery 15 and the motherboard 16, and the second connector 142 is used for electrically connecting the motherboard 16, so that the extension circuit board is electrically connected with the motherboard 16 by rotating the conductive member 14.

It should be noted that the first connector 141 is electrically connected to the body of the rotating conductive member 14 in a rotatable manner. Specifically, in one embodiment, the first connector 141 and the body of the rotating conductive member 14 are rotatably connected by a cable, and when the body of the rotating conductive member 14 rotates along with the reel 10, the cable between the first connector 141 and the body of the rotating conductive member 14 can rotate with each other, i.e., the cable of the first connector 141 is rotatably connected with the body of the rotating conductive member 14. Therefore, when the reel 10 rotates relative to the expansion circuit board, the body of the rotating conductive member 14 rotates along with the reel 10, and the cable of the first connector 141 and the body of the rotating conductive member 14 rotate relative to each other, so that the cable of the first connector 141 electrically connected to the expansion circuit board can be prevented from being twisted repeatedly, and the cable can be prevented from being twisted off.

Referring to fig. 1 to 3 again, the display device 100 further includes a housing 60, the reel 10 is rotatably disposed in the housing 60, and a receiving cavity is formed between the reel 10 and the housing 60. When the flexible screen 30 and the support member 50 are wound around the outer circumferential surface of the roll 10, the wound portion of the flexible screen 30 and the support member 50 is accommodated in the accommodating chamber, and the flexible screen 30 can be protected.

Specifically, as shown in fig. 3, 8 and 9, the housing 60 includes a first housing 61 and a second housing 62 detachably covering the first housing 61, and the first housing 61 and the second housing 62 are respectively provided with a pair of feet 63 for placing the display device 100. In an embodiment, the first casing 61 and the second casing 62 are respectively provided with a foot base 63 at two opposite ends, the foot base 63 on the first casing 61 and the foot base 63 on the second casing 62 correspondingly form a seat with a larger area, and the display device 100 is more stable after being placed.

The first housing 61 includes a first groove 611, a first mounting portion 612 provided at one end of the first groove 611, and a second mounting portion 613 provided at the opposite end of the first groove 611. Two opposite ends of the first groove 611 are respectively provided with an arc-shaped first positioning rib 614, and each first positioning rib 614 is provided with an arc-shaped first positioning groove 6141. The space between the two second positioning ribs 614 in the first groove 611 is a receiving groove 615, and the receiving groove 615 is used for receiving the reel 10. The first mounting portion 612 is located at an end of one of the first positioning ribs 614 facing away from the first positioning groove 6141 thereof, and the second mounting portion 613 is located at an end of the other first positioning rib 614 facing away from the first positioning groove 6141 thereof. A pair of sixth connecting posts 616 detachably connected to the second housing 62 is disposed at two opposite ends of each first positioning rib 614, and each sixth connecting post 616 is axially provided with a threaded hole. A through groove 617 is formed in a side wall of the first groove 611, through which the flexible screen 30 and the supporting member 50 pass, the through groove 617 is located between the two first positioning ribs 614 and extends along an axial direction of the housing 60, and the through groove 617 is communicated with the receiving groove 615. A pair of seventh connecting posts 618 for mounting a fixing element 18 are disposed on two opposite sides of the first mounting portion 612, each seventh connecting post 618 is axially provided with a threaded hole, and a positioning post 6124 is disposed on one side of each seventh connecting post 618 in the first mounting portion 612.

The fixing element 18 serves, inter alia, to fix the drive shaft 135 of the drive element 13. Specifically, referring to fig. 15, in an embodiment, the fixing member 18 includes a connecting column 181 and two connecting pieces 183 disposed at two opposite sides of the connecting column 181, the connecting column 181 is formed with a connecting hole 185, and each connecting piece 183 is formed with a positioning hole 184 and a through hole 188. The driving shaft 135 of the driving member 13 can be clamped in the connection hole 185 after passing through the end of the winding drum 10, the two positioning columns 6124 of the first mounting portion 612 are correspondingly inserted into the positioning holes 184 at the two sides of the fixing member 18, the two seventh connection columns 618 are correspondingly communicated with the through holes 188 at the two sides of the fixing member 18, and a screw passes through the through holes 188 and is screwed with the threaded hole of the corresponding seventh connection column 618, so that the fixing member 18 is screwed and fixed in the first mounting portion 612, and the driving shaft 135 of the driving member 13 is fixedly connected to the first housing 61. It will be appreciated that since the driving member 13 is fixed to the end of one end of the roll 10, and the driving shaft 135 is fixed to the first housing 61 of the housing 60 through the fixing member 18, the rotation of the driving member 13 can drive the roll 10 to rotate in the housing 60 to wind or unwind the flexible screen 30.

In one embodiment, the first housing 61 includes a first portion having a substantially semi-cylindrical shape and a second portion having a substantially triangular prism shape, the second portion includes a first plane and a second plane extending in a length direction of the first housing 61 and connected to each other, the first plane is a vertical plane parallel to the unfolded flexible screen 30, the second plane is a horizontal plane perpendicular to the unfolded flexible screen 30, and the through groove 617 is opened in the second plane. Wherein the first plane comprises a first area 619 covering a part of the flexible screen 30. Preferably, in an embodiment, a portion of the first plane corresponding to the first area 619 is made of a transparent material, so that the portion of the flexible screen 30 covered by the first area 619 can also be used for displaying.

The portion of the first plane corresponding to the first region 619 and the rest of the first plane may be integrally formed, or may be assembled into a whole by being engaged or screwed after being separately manufactured. The first part and the second part of the first housing 61 may be integrally formed, or may be separately manufactured and assembled into a whole by means of snap-fit or screw-connection.

In other embodiments, the first housing 61 is a semi-cylindrical housing, i.e., the first housing 61 includes only a first portion, and the through-slot 617 opens to an outer wall of the first housing 61.

The second housing 62 includes a second slot 621, a first connecting portion 622 disposed at one end of the second slot 621, and a second connecting portion 623 disposed at the other end opposite to the second slot 621. The first connecting portion 622 covers the first mounting portion 612, and the second connecting portion 623 covers the second mounting portion 613. Two arc-shaped second positioning ribs 624 are arranged at two opposite ends of the second groove 621, and the two second positioning ribs 624 correspond to the two first positioning ribs 614. Each second positioning rib 624 is provided with an arc-shaped second positioning slot 6241. The space between the two second positioning ribs 614 in the second groove 621 is an accommodating groove 625, the accommodating groove 625 and the accommodating groove 615 in the first groove 611 form an accommodating space, and the spool 10 is rotatably disposed in the accommodating space. The first connecting portion 622 is located at one end of one of the second positioning ribs 624 facing away from the second positioning groove 6241, and the second connecting portion 623 is located at one end of the other second positioning rib 624 facing away from the second positioning groove 6241. A pair of eighth connecting posts 626 corresponding to the pair of sixth connecting posts 616 on the first housing 61 are respectively disposed at two opposite ends of each second positioning rib 624, and each eighth connecting post 626 is axially provided with a through hole penetrating through the second housing 62.

In one embodiment, the assembly of the spool 10 into the housing 60 is as follows:

firstly, one end of the flexible screen 30 and one end of the supporting member 50 are fixedly connected to the winding drum 10, the other end of the flexible screen 30 and the other end of the supporting member 50 pass through the through groove 617 from the first housing 61, the other end of the flexible screen 30 is movably connected to the bracket 20 through the sliding assembly 40, and the other end of the supporting member 50 is fixedly connected to the bracket 20, which will not be described herein again.

Then, the two bearings 17 sleeved at the opposite ends of the winding drum 10 are respectively installed in the first positioning grooves 6141 of the first positioning ribs 614 at the opposite ends of the first groove body 611, the end surface of one end of each bearing 17 far away from the winding drum 10 abuts against the corresponding first positioning rib 614, the driving shaft 135 of the driving element 13 passing through one end of the winding drum 10 is located in the first installation part 612, and the driving shaft 325 is fixed on the first housing 61 by using the fixing element 18.

Finally, the second housing 62 is covered on the first housing 61, the first positioning grooves 6141 of the two first positioning ribs 614 of the first housing 61 and the second positioning grooves 6241 of the two second positioning ribs 624 of the second housing 62 enclose together to form a bearing seat capable of clamping and fixing the two bearings 17, and the outer ring of each bearing 17 abuts against the annular groove surface of the bearing seat. The first connecting portion 622 covers the first mounting portion 612, the second connecting portion 623 covers the second mounting portion 613, the sixth connecting posts 616 at the two opposite ends of the first casing 61 are correspondingly communicated with the eighth connecting posts 626 at the two opposite ends of the second casing 62, and a plurality of screws respectively penetrate through holes of the eighth connecting posts 626 from the outer wall of the second casing 62 and are in threaded connection with corresponding threaded holes of the sixth connecting posts 616, so that the detachable connection of the second casing 62 and the first casing 61 is realized. Thus, the opposite ends of the reel 10 and the opposite ends of the housing 60 are connected by a bearing 17, respectively, and when the driving shaft 135, which is provided at one end of the reel 10 and fixed to the first housing 61 through the reel 10, is rotated by the driving member 13, the reel 10 can be rotated in the housing 60 by the two bearings 17.

Further, referring to fig. 8, 16 and 17, fig. 16 is a schematic perspective exploded view of the end cap assembly in fig. 8, and fig. 17 is a schematic perspective view of another view angle of fig. 16. The housing 60 further includes a first end cover 64 and a second end cover 65, the first end cover 64 for covering an end of the housing 60 near the first mounting portion 612, and the second end cover 65 for covering an end of the housing 60 near the second mounting portion 613. In an embodiment, a circle of snap ring is respectively convexly provided at the edge of the first end cover 64 and the edge of the second end cover 65, a first snap groove extending along the circumferential direction of the housing 60 is respectively provided at a position close to the end portion corresponding to one end on the inner wall of the first mounting portion 612 and the inner wall of the second mounting portion 613 of the first housing 61, a second snap groove extending along the circumferential direction of the housing 60 is respectively provided at a position close to the end portion corresponding to one end on the inner wall of the first mounting portion 612 and the inner wall of the second mounting portion 613 of the second housing 62, when the first housing 61 and the second housing 62 are covered, the corresponding first snap groove and the corresponding second snap groove form a complete circle of snap groove, the snap rings of the first end cover 64 and the second end cover 65 are respectively snapped into the snap grooves at the two opposite ends of the first housing 61 and the second housing 62, and the first end cover 64 and the second end cover 65 are respectively covered at the two opposite.

In other embodiments, the edges of the first end cap 64 and the second end cap 65 are provided with external threads, the inner walls of the two opposite ends of the first shell 61 and the second shell 62 which are covered together are correspondingly provided with internal threads, and the first end cap 64 and the second end cap 65 are respectively covered on the two opposite ends of the shell 60 in a threaded manner.

When the second end cap 65 covers one end of the housing 60 close to the second mounting portion 613, the end cap assembly is accommodated in an accommodating space formed by the second mounting portion 613 of the first housing 61, the second connecting portion 623 of the second housing 62 and the second end cap 65.

Specifically, as shown in fig. 8, 16 and 17, the end cap assembly includes an expansion circuit board 70 fixed to the side of the second end cap 65 facing the inside of the housing 60 by screwing or snapping, and as mentioned above, the expansion circuit board 70 is electrically connected to the first connector 141 of the rotating conductive member 14, so as to be electrically connected to the main board 16 in the reel 10 through the rotating conductive member 14. The side of the extended circuit board 70 facing the second end cover 65 is provided with at least one key 71, and the second end cover 65 is provided with an exposed key cap 651 corresponding to the key 71. In one embodiment, two keys 71 are disposed on the extended circuit board 70, each key 71 is correspondingly disposed with a key cap 651, one of the two keys 71 is used for controlling forward rotation of the driving member 13 electrically connected to the main board 16, and the other is used for controlling reverse rotation of the driving member 13, it is understood that pressing and releasing the key cap 651 to trigger any key 71 can implement corresponding control function.

In other embodiments, the forward and reverse rotation of the driver 13 may be controlled by the same key 71.

Further, one side of the second end cover 65 facing the inside of the housing 60 is further provided with a mounting groove 653, the end cover assembly further includes a horn assembly 73 disposed on the mounting groove 653, and the horn assembly 73 includes a horn 731 mounted in the mounting groove 653 and a horn cover 733 covering the mounting groove 653. The speaker 731 is electrically connected to the expansion circuit board 70, and when the display device 100 displays through the expanded portion of the flexible screen 30, the speaker 731 can play corresponding audio content.

It should be noted that, the expansion circuit board 70 is provided with a plurality of control circuits, a plurality of electronic components, a plurality of connectors, and the like, so as to implement various corresponding functions.

Referring to fig. 8, 9 and 16, the display device 100 further includes a USB connector 80, and the USB connector 80 is electrically connected to the expansion circuit board 70 through a flexible circuit board 75. Specifically, one of the bases 63 of the casing 60 close to the second end cap 65 is provided with an installation groove for installing the USB connector 80, the installation groove is communicated with an accommodation space of the casing 60 for accommodating the end cap assembly, the USB connector 80 is fixed on a cover plate 66, the cover plate 66 is detachably connected with the base 63 in a screwing or clamping manner to cover the installation groove, so as to seal the USB connector 80 in the installation groove, and the base 63 is correspondingly provided with a USB through hole 635 for exposing the USB connector 80. In one embodiment, the mounting groove is formed on the base 63 of the first housing 61 near the second end cap 65, and the cover plate 66 is screwed on the base 63.

The opposite ends of the flexible circuit board 75 are electrically connected to the expansion circuit board 70 and the USB connector 80, respectively, when the battery 15 needs to be charged, the charging plug is inserted into the USB connector 80 through the USB through hole 635 on the socket 63, and the USB connector 80 charges the battery 15 through the flexible circuit board 75, the expansion circuit board 70 and the motherboard 16 which are electrically connected in sequence.

In an embodiment, the USB connection port 80 may also be used for externally connecting an electronic device to transmit data including display content to the motherboard 16, and the motherboard 16 may control the expanded portion of the flexible screen 30 to display after acquiring the data, and simultaneously control the speaker 731 in the end cap assembly to play corresponding audio content. It is understood that the main board 16 may also obtain data containing display content through wireless transmission, and the main board 16 is provided with a corresponding wireless communication module.

As shown in fig. 1, when the flexible screen 30 needs to be used, one of the key caps 651 on the second end cap 65 is pressed and released to activate the corresponding key 71, the driving member 13 is controlled to rotate reversely to drive the reel 10 to rotate reversely in the housing 60, so that the supporting member 50 wound on the outer circumferential surface of the reel 10 passes through the through slot 617 in the housing 60 to unwind relative to the reel 10 and push the stand 20 away from the reel 10, the stand 20 drives the flexible screen 30 to unwind and expose, and the display device 100 can display through the unwound part of the flexible screen 30. Wherein, after the supporting member 50 is straightened, the bending resistance is good, the flexible screen 30 is not easy to bend, and the supporting bracket 20 and the flexible screen 30 can be stably supported. It can be understood that, during the reverse rotation of the roll 10, the roll 10 can be controlled to rotate by different angles to make the flexible screen 30 spread by different areas, so that the area of the display device 100 is changed accordingly to meet the diversified display requirements of the user.

As shown in fig. 2, when the flexible screen 30 is not used up, another key cap 651 on the second end cap 65 is pressed and released to activate the corresponding key 71, the driving member 13 is controlled to rotate forward to drive the reel 10 to rotate forward in the housing 60, so that the unfolded portion of the flexible screen 30 and the supporting member 50 passes through the through slot 617 of the housing 60 and is wound on the outer circumferential surface of the reel 10 together, and the flexible screen 30 and the supporting member 50 are accommodated in the accommodating cavity between the reel 10 and the housing 60, thereby protecting the flexible screen 30.

It should be noted that, in order to avoid that the flexible member 30 and the supporting member 50 are completely received in the housing 60, and the flexible member 30 and the supporting member 50 cannot smoothly extend out of the housing 60 through the through slot 617 when the flexible screen 30 is reused, in an embodiment, the length of the bracket top plate 23 is greater than the length of the through slot 617 of the housing 60, so that when the flexible screen 30 and the supporting member 50 are received in the receiving cavity between the winding drum 10 and the housing 60, the bracket top plate 23 is stopped at the notch of the through slot 617, and the bracket body 21 and the bracket cover plate 22 of the bracket 20 are received in the receiving cavity, that is, the bracket 20 is partially received in the receiving cavity. When the flexible screen 30 needs to be used again, the winding drum 10 rotates reversely, so that the supporting member 50 is unfolded and straightened relative to the winding drum 10 and pushes the supporting frame 20 to be away from the winding drum 10, and the supporting frame 20 drives the flexible screen 30 and the supporting member 50 to smoothly extend out of the casing 60 from the through groove 617.

The above is an implementation manner of the embodiments of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principles of the embodiments of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.

Claims

1. A display device is characterized by comprising a winding drum, a support and a flexible screen, wherein one end of the flexible screen is fixedly connected with the winding drum, and the other end of the flexible screen is movably connected with the support through a sliding assembly;

when the winding drum rotates forwards, the flexible screen is wound on the winding drum, and the support is close to the winding drum; when the winding drum rotates reversely, the support is far away from the winding drum and drives the flexible screen to be unfolded;

and in the process of winding or unwinding the flexible screen, the other end of the flexible screen slides relative to the bracket through the sliding assembly.

2. The display apparatus of claim 1, wherein the sliding assembly comprises a rail slidably disposed within the bracket and a resilient member coupled between the rail and the bracket;

the other end of the flexible screen is fixedly connected with the cross rod, when the other end of the flexible screen slides relative to the support, the cross rod is driven to slide relative to the support, and the elastic piece is elastically deformed.

3. The display apparatus as claimed in claim 2, wherein a protruding post extending toward the winding drum is respectively protruded at two opposite ends of the cross bar, the elastic member is a spring sleeved on the protruding post, the spring is abutted between the cross bar and the bracket and is always in a compressed state, and the spring generates an elastic pushing force pushing the cross bar in a direction away from the winding drum, so that the cross bar tensions the flexible screen.

4. The display device according to claim 2, wherein at least one first hook portion is symmetrically disposed on a side of the cross bar away from the winding drum, a second hook portion is disposed on a side of the support away from the winding drum corresponding to each first hook portion, the elastic member is a tension spring hooked on the first hook portion and the corresponding second hook portion, the tension spring is always in a tension state, and the tension spring generates an elastic pulling force for pulling the cross bar in a direction away from the winding drum, so that the cross bar tensions the flexible screen.

5. The display device according to claim 3 or 4, wherein the bracket includes a bracket body and a bracket cover plate covering the bracket body, a receiving cavity is formed between the bracket body and the bracket cover plate, the cross bar is disposed in the receiving cavity, and the elastic member is connected between the cross bar and the bracket body.

6. The display apparatus as claimed in claim 1, wherein a bendable supporting member is fixedly connected between the reel and the bracket; when the winding drum rotates forwards, the supporting piece and the flexible screen are wound on the winding drum together and drive the support to be close to the winding drum; when the winding drum rotates reversely, the supporting piece is unfolded relative to the winding drum and pushes the support to be away from the winding drum, so that the support drives the flexible screen to be unfolded.

7. The display device as claimed in claim 6, wherein the support member is two support pieces symmetrically disposed about a center line of the flexible screen, each of the support pieces extending in a direction parallel to the center line.

8. The display device according to claim 7, wherein when the support sheet is bent, a cross section of the support sheet in a normal direction of the flexible screen is rectangular; when the supporting sheet is straightened, the cross section of the supporting sheet in the normal direction of the flexible screen is arc-shaped.

9. The display device according to claim 6, further comprising a housing, wherein the roller is rotatably disposed in the housing, a receiving cavity is formed between the housing and the roller, and the housing is provided with a through slot for the flexible screen and the supporting member to pass through;

when the flexible screen and the supporting piece are wound on the outer peripheral surface of the winding drum, the flexible screen and the supporting piece are contained in the containing cavity.

10. The display apparatus as claimed in claim 9, wherein a driving member is disposed in the roller near an end portion, a driving shaft of the driving member passes through the roller and is fixed to the end portion of the housing near the driving member, and the driving member is used for driving the roller to rotate relative to the housing to wind or unwind the flexible screen.