CN218819166U

CN218819166U - Rollable display device

Info

Publication number: CN218819166U
Application number: CN202222927291.1U
Authority: CN
Inventors: 吴雨华; 赵永丰; 廖富; 刘佳; 后红琪; 丁立薇
Original assignee: Kunshan Govisionox Optoelectronics Co Ltd
Current assignee: Kunshan Govisionox Optoelectronics Co Ltd
Priority date: 2022-11-03
Filing date: 2022-11-03
Publication date: 2023-04-07
Anticipated expiration: 2032-11-03

Abstract

The present application relates to a rollable display device comprising: the display assembly comprises a mounting piece, a scroll and a flexible display screen, wherein the first end of the flexible display screen is connected with the scroll, and the mounting piece is arranged at the second end, opposite to the first end, of the flexible display screen; the display assembly is provided with a unfolding state and a rolling state, when the display assembly is in the unfolding state, the flexible display screen is unfolded relative to the reel, and when the display assembly is in the rolling state, the flexible display screen is rolled on the reel; the first support piece is detachably connected with the reel, and the second support piece is detachably connected with the mounting piece; the first supporting piece and the second supporting piece are used for enabling the flexible display screen to display in a vertical mode when the display assembly is in the unfolded state. When the user sees the shadow, the display assembly in the unfolding state can be supported on the desktop by the first supporting piece and the second supporting piece, so that the hands of the user are liberated, and the flexible display screen can provide a better viewing angle for the user.

Description

Rollable display device

Technical Field

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

Background

At present, the pursuit of consumers for display devices is that the display devices can meet the use experience of large screens and large visual fields when in use, and have better portability when not in use. With the development of flexible display screen technology, the flexible and foldable performance of flexible display screens brings possibility for portable large-screen display devices. Among them, the rollable display device has become one of the trends of the future display screen development due to the higher screen expansibility.

The rollable display device of the related art is usually held by a user's hand when used, and if the user views a film only with the rollable display device, the use experience is affected.

SUMMERY OF THE UTILITY MODEL

Accordingly, there is a need for a rollable display device that improves the user experience when viewing images with the rollable display device.

The present application provides a rollable display device, comprising:

the display assembly comprises a mounting piece, a scroll and a flexible display screen, wherein a first end of the flexible display screen is connected with the scroll, and the mounting piece is arranged at a second end, opposite to the first end, of the flexible display screen; the display assembly is provided with a unfolding state and a rolling state, when the display assembly is in the unfolding state, the flexible display screen is unfolded relative to the reel, and when the display assembly is in the rolling state, the flexible display screen is rolled on the reel;

the first support piece is detachably connected with the reel, and the second support piece is detachably connected with the mounting piece; the first supporting piece and the second supporting piece are used for enabling the flexible display screen to display in a vertical mode when the display assembly is in the unfolded state.

The display assembly of the rollable display device in the embodiment of the application has the unfolding state and the rolling state, when the display assembly is in the unfolding state, the flexible display screen is unfolded relative to the reel, at the moment, the rollable display device can display pictures, and therefore in a state that a user can use the display device, the user can obtain the use experience of a large screen and a large view field through the unfolded flexible display screen. When the display assembly is in a curling state, the flexible display screen is wound on the reel, and the display assembly has good portability. In addition, the first support and the second support of the rollable display device are detachably connected with the reel and the mount, respectively. The user can install or detach the first support and the second support according to the use scene. For example, when a user inputs information or plays games, the first supporting piece and the second supporting piece can be in a detached state, the first supporting piece and the second supporting piece can be installed on the display assembly when the user watches the videos, the display assembly in an unfolded state is supported on a desktop through the first supporting piece and the second supporting piece, and the flexible display screen is made to display in a vertical mode. Therefore, the rollable display device in the embodiment of the application can improve the use experience of a user in the process of watching the film by arranging the first supporting piece and the second supporting piece which can be installed and detached.

In some embodiments, the rollable display device further comprises a receiving sleeve provided with a receiving cavity;

wherein the display component is configured to be separated from the receiving sleeve under the condition of the unfolding state, and can be installed in or taken out of the accommodating cavity from the outside of the receiving sleeve under the condition of the rolling state;

the first support and the second support are separated from the display assembly when the display assembly is in a rolled state.

In some embodiments, the inner wall of the receiving sleeve is provided with a soft compressible layer configured to be compressed and deformed when the display assembly is received in the receiving cavity.

In some embodiments, the storage sleeve comprises a first sleeve section and a second sleeve section, the first sleeve section comprises a first end cover and a first side wall, the second sleeve section comprises a second end cover and a second side wall, the first end cover, the first side wall, the second end cover and the second side wall jointly define a containing cavity and a taking and placing opening communicated with the containing cavity, the axis of the first sleeve section and the axis of the second sleeve section are arranged in a collinear mode, and the first sleeve section and the second sleeve section are connected in a mode that the distance between the first end cover and the second end cover is adjustable, so that the volume of the containing cavity and the size of the taking and placing opening can be adjusted.

In some embodiments, the receiving sleeve comprises a first sleeve section and a second sleeve section, the first sleeve section comprises a first end cover and a first side wall, the second sleeve section comprises a second end cover and a second side wall, the first end cover, the first side wall, the second end cover and the second side wall jointly define a containing cavity, the axis of the first sleeve section and the axis of the second sleeve section are arranged in a collinear mode, and the first side wall and the second side wall are connected in a detachable mode.

In some embodiments, the first end cap, the first sidewall, the second end cap, and the second sidewall further define an access opening in communication with the receiving cavity.

In some embodiments, a mounting cavity is arranged inside the scroll, and an opening communicated with the mounting cavity is arranged on the scroll;

the rollable display device further comprises a system control board, and the system control board is arranged in the installation cavity;

the first end of the flexible display screen penetrates through the opening to extend into the mounting cavity, a binding area is arranged at the first end, and the binding area system control board is electrically connected.

In some embodiments, the rollable display device further includes a rechargeable battery disposed within the mounting cavity for powering the display assembly and the system control board.

In some embodiments, the reel is provided with a data interface electrically connected with the system control board and a charging interface electrically connected with the rechargeable battery.

In some embodiments, the outer contour of the reel is helical, and a step structure is formed at the opening.

In some embodiments, the height of the step structure is equal to the thickness of the flexible display screen.

In some embodiments, the first end of the flexible display screen is attached to the inner wall of the scroll by the nano-adhesive.

In some embodiments, the spool includes first and second semi-cylindrical housings that are connected in a snap-fit relationship with each other and that collectively define a mounting cavity.

In some embodiments, the rollable display device further includes two decorative covers mounted at both ends of the roller.

In some embodiments, the first support member includes a first mounting portion and a first support portion, the first mounting portion is detachably connected to the reel, the first mounting portion is rotatably disposed on the top of the first support portion, and the axis direction of rotation of the first mounting portion is parallel to the extending direction of the reel;

and/or the second support piece comprises a second mounting part and a second supporting part, the second mounting part is detachably connected with the mounting part, the second mounting part is arranged at the top of the second supporting part in a self-rotating mode, and the axis direction of the self-rotating of the second mounting part is parallel to the extending direction of the mounting part.

In some embodiments, the first mounting portion is provided with a first fixing groove for inserting the spool, and the cross-sectional shape of the first fixing groove matches with the cross-sectional shape of the spool.

And a second fixing groove for inserting the mounting piece is arranged on the second mounting part, and the sectional shape of the second fixing groove is matched with that of the mounting piece.

In some embodiments, inner walls of the first and second fixing grooves are provided with a soft compressible layer.

Drawings

FIG. 1 is a schematic structural diagram of a display module according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a rollable display device in an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a first support member according to an embodiment of the present application;

FIG. 4 is a schematic structural diagram of a second support member according to an embodiment of the present application;

FIG. 5 is a schematic structural view of a receiving sleeve according to an embodiment of the present application;

fig. 6 is an exploded view of a receiving sleeve according to an embodiment of the present disclosure;

FIG. 7 is a schematic view of a reel according to an embodiment of the present application;

FIG. 8 is a schematic view of an outer contour of a spool according to an embodiment of the present application;

fig. 9 is an exploded view of a reel according to an embodiment of the present application.

Detailed Description

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In describing positional relationships, unless otherwise specified, when an element such as a layer, film, or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. Further, when a layer is referred to as being "under" another layer, it may be directly under, or one or more light-emitting units may be present. It will also be understood that when a layer is referred to as being "between" two layers, it can be the only layer between the two layers, or one or more light-emitting units can also be present.

Where the terms "comprising," "having," and "including" are used herein, another component may be added unless an explicit limitation is used, such as "only," "consisting of … …," etc. Unless mentioned to the contrary, terms in the singular may include the plural and are not to be construed as being one in number.

It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present application.

It will also be understood that when interpreting elements, although not explicitly described, the elements are to be interpreted as including a range of errors which are within the acceptable range of deviation of the particular values as determined by those skilled in the art. For example, "about," "approximately," or "substantially" may mean within one or more standard deviations, without limitation.

Further, in the specification, the phrase "plane distribution diagram" refers to a drawing when the target portion is viewed from above, and the phrase "sectional diagram" refers to a drawing when a section taken by vertically cutting the target portion is viewed from the side.

Furthermore, the figures are not 1:1, and the relative sizes of the various elements in the drawings are drawn for illustration only and not necessarily to true scale.

At present, consumers seek for a display device which can meet the use experience of a large screen and a large visual field when in use and has better portability when not in use. With the development of flexible display screen technology, the flexible and foldable performance of flexible display screens brings possibility for portable large-screen display devices. Among them, the rollable display device has become one of the trends of the future display screen development due to the higher screen expansibility.

The related art rollable display device is generally held by a user when in use. However, it is necessary for the user to hold the hand in some usage scenarios, such as inputting information, playing games, etc., while it is not necessary for the user to hold the hand in some usage scenarios, such as watching movies. That is, if the user views the image using the rollable display device, the process of holding the hand increases the burden on the user, fatiguing the user. However, if the user lays the rollable display device on the desktop for viewing, the user needs to keep his head down for a good view angle, which increases the risk of cervical spondylosis. Therefore, how to improve the use experience of the user in watching the movie is a problem which needs to be solved.

As shown in fig. 1 to 4, the rollable display device 10 in the embodiment of the present application includes a display assembly 100, a first support 500, and a second support 600. Specifically, the display assembly 100 includes a mount 130, a spool 110, and a flexible display 120, a first end of the flexible display 120 being coupled to the spool 110, the mount 130 being disposed at a second end of the flexible display 120 opposite the first end. The display assembly 100 has a deployed state and a rolled state, wherein when the display assembly 100 is in the deployed state, the flexible display 120 is deployed relative to the roller 110, and when the display assembly 100 is in the rolled state, the flexible display 120 is rolled up on the roller 110. The first support 500 is detachably connected to the reel 110, and the second support 600 is detachably connected to the mounting member. The first support 500 and the second support 600 are used for enabling the flexible display screen 120 to display in a vertical manner when the display assembly 100 is in the unfolded state.

In the rollable display device 10 of the embodiment of the present application, the display assembly 100 has a rolled state and a unrolled state, when the display assembly 100 is in the rolled state, the flexible display screen 120 is unrolled relative to the scroll 110, at this time, the rollable display device 10 can display a picture, so that in a state available for a user, the user can obtain a large-screen and large-view use experience through the unrolled flexible display screen 120. When the display assembly 100 is in the rolled state, the flexible display screen 120 is rolled up on the roller 110, and the display assembly 100 has good portability. In addition, the first and

second supports

500 and 600 of the rollable display device 10 are detachably connected with the spool 110 and the mount 130, respectively. The user can mount or dismount the first and

second supports

500 and 600 according to the use scene. For example, when a user inputs information or plays a game, the first support 500 and the second support 600 may be in a detached state, and when the user views a video, the first support 500 and the second support 600 may be mounted on the display assembly 100, and the display assembly 100 in the unfolded state is supported on a table by the first support 500 and the second support 600, so that the flexible display 120 is displayed in a vertical state, thereby freeing the two hands of the user and enabling the flexible display 120 to provide a better viewing angle for the user. Therefore, the rollable display device 10 in the embodiment of the present application can improve the user experience when viewing images by providing the first support 500 and the second support 600 that can be mounted and dismounted.

Illustratively, mount 130 may be a decorative strip, or mount 130 may be a second reel, and when mount 130 is a second reel, display assembly 100 may be rolled up and unrolled from both ends.

In some embodiments, as shown in fig. 2 and 3, the first support 500 includes a first mounting portion 520 and a first support portion 530, the first mounting portion 520 is detachably connected to the winding shaft 110, and the first mounting portion 520 is rotatably disposed on a top portion of the first support portion 530, which is equivalent to the first mounting portion 520 rotatably connected to the first support portion 530. The axial direction of the rotation of the first mounting portion 520 is parallel to the extending direction of the spool 110. Therefore, the rotation angle of the first mounting portion 520 relative to the first supporting portion 530 is adjustable, and a user can rotate the display assembly 100 around the axis of the first supporting portion 530 (which is parallel to or collinear with the axis of the scroll 110) as a rotation axis, so as to adjust the orientation of the display surface of the flexible display 120. For example, the mounting member 130 is held by hand, so that the flexible display screen 120 in the unfolded state rotates around the reel 110, and the first mounting portion 520 rotates to drive the reel 110 to rotate, thereby adjusting the orientation of the display surface of the flexible display screen 120, and the unfolded length of the flexible display screen 120 is not changed.

In some embodiments, as shown in fig. 2 and 4, the second supporting element 600 includes a second mounting portion 620 and a second supporting portion 630, the second mounting portion 620 is detachably connected to the mounting element 130, and the second mounting portion 620 is rotatably disposed on the top of the second supporting portion 630, which is equivalent to that the second mounting portion 620 is rotatably connected to the second supporting portion 630. The axial direction of the rotation of the second mounting portion 620 is parallel to the extending direction of the mount 130. Therefore, the rotation angle of the second mounting portion 620 relative to the second supporting portion 630 is adjustable, and a user can rotate the display assembly 100 around the axis of the second supporting portion 630 (parallel to or collinear with the extending direction of the mounting member 130) to adjust the orientation of the display surface of the flexible display 120. For example, the reel 110 is held by hand, so that the flexible display screen 120 in the unfolded state rotates around the mounting member 130, and the second mounting portion 620 rotates to drive the mounting member 130 to rotate, thereby adjusting the orientation of the display surface of the flexible display screen 120, and the unfolded length of the flexible display screen 120 is not changed.

In some embodiments, as shown in fig. 3, the first support 50 (e.g., the first mounting portion 520) may be provided with a first fixing groove 510 for inserting the winding shaft 110, and a cross-sectional shape of the first fixing groove 510 may match a cross-sectional shape of the winding shaft 110, and as shown in fig. 4, the second support 600 (e.g., the second mounting portion 620) may be provided with a second fixing groove 610 for inserting the mounting member 130, and a cross-sectional shape of the second fixing groove 610 may match a cross-sectional shape of the mounting member 130. When the roller 110 is inserted into the first fixing groove 510, the first supporting member 500 can stably support the roller 110 on the desktop, and the second supporting member 600 can stably support the mounting member 130 on the desktop, so that the display assembly 100 in the unfolded state can be stably supported on the desktop to realize the upright display.

In addition, the reel 110 is coupled to the first support 500 in a cartridge manner, and the mounting member 130 is coupled to the second support 600 in a cartridge manner, so that the reel 110 and the first support 500, and the mounting member 130 and the second support 600 can be rapidly mounted and dismounted.

Further, inner walls of the first and second fixing

grooves

510 and 610 are provided with soft compressible layers. When the display assembly 100 is impacted, the compressible layer may deform to absorb the impact energy to protect the display assembly 100.

In some embodiments, as shown in fig. 5 and 6, the rollable display device 10 further comprises a storage sleeve 200, the storage sleeve 200 being provided with a storage cavity 201, wherein the display assembly 100 is configured to be separated from the storage sleeve 200 in a deployed state, and to be able to be inserted into the storage cavity 201 from outside the storage sleeve 200 or removed from the storage cavity 201 in a rolled state. The first and

second supports

500 and 600 are separated from the display assembly 100 when the display assembly 100 is in a rolled state.

In this embodiment, the rollable display device 10 further includes a receiving sleeve 200, and the receiving sleeve 200 can be used to receive and protect the display assembly 100 in a rolled state. In the related art, some rollable display devices are provided with a protective sleeve for accommodating the reel and the flexible display screen, but the reel is always in the protective sleeve and cannot be taken out, and the rollable display devices can pull out and unfold the flexible display screen through an outlet portion of the protective sleeve when in use. In the rollable display device of the related art, since the spool is always located in the protective tube, when the flexible display screen is unrolled, a section of the structure is located between the spool and the outlet portion of the protective tube, and the section of the structure is located inside the protective tube and cannot be observed by a user, and thus cannot be used as a display portion, so that the expandability of the flexible display screen is limited. In contrast, in the rollable display device 10 of the embodiment of the present application, the display assembly 100 can be switched to the unfolded state after being taken out from the receiving sleeve 200, so that after the flexible display 120 is unfolded, there is no portion that cannot be observed by a user due to the limitation of the receiving sleeve 200, and thus, the area of the display area can be set to be larger, and the expandability of the flexible display 120 is better.

In addition, the first and

second supports

500 and 600 are separated from the display module 100 when the display module 100 is in the rolled state, which is advantageous in that the display module 100 in the rolled state can be easily loaded into or unloaded from the receiving sleeve 200.

In some embodiments, the inner wall of the receiving sleeve 200 is provided with a soft compressible layer (not shown), which is configured to be compressed and deformed when the display assembly 100 is received in the receiving cavity 201. In this embodiment, when the display assembly 100 is received in the receiving sleeve 200, the compressible layer is deformed by the pressing action of the display assembly 100. On one hand, the deformed compressible layer can provide elastic supporting force for the display assembly 100, so as to fix the display assembly 100, thereby reducing the shaking of the display assembly 100 relative to the receiving sleeve 200 when the rollable display device 10 is carried by a user. On the other hand, when the receiving sleeve 200 is accidentally dropped, the compressible layer may be further deformed to absorb the impact energy to protect the display assembly 100.

In some embodiments, as shown in connection with fig. 5 and 6, the receiving sleeve 200 includes a first barrel section 210 and a second barrel section 220, the first barrel section 210 includes a first end cover 211 and a first sidewall 212, the second barrel section 220 includes a second end cover 221 and a second sidewall 222, the first end cover 211, the first sidewall 212, the second end cover 221, and the second sidewall 222 together define a receiving cavity 201, an axis of the first barrel section 210 is arranged in line with an axis of the second barrel section 220, and the first sidewall 212 and the second sidewall 222 are detachably connected therebetween. In this embodiment, the first sidewall 212 of the first barrel section 210 and the second sidewall 222 of the second barrel section 220 are removably connected to each other, thereby allowing assembly or disassembly of the first barrel section 210 and the second barrel section 220. When the display module 100 needs to be stored, the first tube section 210 and the second tube section 220 can be separated, the display module 100 in a curled state is placed into the storage sleeve 200, and then the first tube section 210 and the second sleeve are assembled, so that the display module 100 cannot slide out of or fall out of the storage sleeve 200. When the display module 100 needs to be removed from the accommodating cavity 201, the first barrel section 210 and the second barrel section 220 can be separated, and then the display module 100 can be removed.

Illustratively, a snap groove may be provided at an end of the first sidewall 212 of the first barrel section 210 and a snap fit to the snap groove may be provided at an end of the second sidewall 222 of the second barrel section 220, thereby detachably connecting the first sidewall 212 and the second sidewall 222.

In other embodiments, the receiving sleeve 200 comprises a first barrel section 210 and a second barrel section 220, the first barrel section 210 comprises a first end cover 211 and a first side wall 212, the second barrel section 220 comprises a second end cover 221 and a second side wall 222, the first end cover 211, the first side wall 212, the second end cover 221 and the second side wall 222 together define a containing cavity 201 and an access opening 202 communicated with the containing cavity 201, the axis of the first barrel section 210 is arranged in line with the axis of the second barrel section 220, and the first barrel section 210 and the second barrel section 220 are connected in a manner that the distance between the first end cover 211 and the second end cover 221 is adjustable, so that the volume of the containing cavity 201 and the size of the access opening 202 can be adjusted. In this embodiment, the first end cover 211 and the first sidewall 212 of the first cylinder section 210 and the second end cover 221 and the second sidewall 222 of the second cylinder section 220 together define the accommodating cavity 201 and the access opening 202 communicated with the accommodating cavity 201, and the first cylinder section 210 and the second cylinder section 220 are connected with each other in a manner that the distance between the first end cover 211 and the second end cover 221 is adjustable. That is, by adjusting the first cylinder section 210 and the second cylinder section 220, the distance between the first end cover 211 and the second end cover 221 can be changed, and then the volume of the accommodating cavity 201 and the size of the access opening 202 are changed, so that the display assembly 100 can pass through the access opening 202 and enter and exit the accommodating cavity 201 more conveniently. Specifically, when the display module 100 needs to be stored, the volume of the accommodating cavity 201 can be enlarged first, the size of the accommodating port 202 is enlarged synchronously, then the display module 100 in a curled state is put into the accommodating cavity 201, the volume of the accommodating cavity 201 is adjusted to be matched with the display module 100, and at the moment, the size of the accommodating port 202 is reduced synchronously, so that the display module 100 cannot slide out of or fall out of the accommodating sleeve 200. When the display module 100 needs to be taken out from the accommodating cavity 201, the volume of the accommodating cavity 201 can be firstly enlarged, and the size of the taking and placing opening 202 is synchronously enlarged, so that the display module 100 can be taken out from the accommodating cavity 201 more conveniently.

For example, a sliding groove may be formed on the first sidewall 212 of the first cylinder section 210, and a sliding block may be formed on the second sidewall 222 of the second cylinder section 220 to cooperate with the sliding groove, so that the distance between the first end cap 211 and the second end cap 221 is adjustable. In addition, a locking structure can be arranged between the sliding block and the sliding groove, so that the sliding block can be locked in the sliding groove.

Further, the first end cover 211, the first side wall 212, the second end cover 221 and the second side wall 222 further define a pick-and-place opening 202 communicated with the accommodating cavity 201, and pick-and-place of the display assembly 100 can be achieved more quickly through the pick-and-place opening 202, so that the pick-and-place process is simplified, and the pick-and-place efficiency is improved.

In some embodiments, as shown in fig. 7 to 9, a mounting cavity 111 is provided inside the winding shaft 110, and an opening 112 communicating with the mounting cavity 111 is provided on the winding shaft 110. The rollable display device 10 also includes a system control board 300, the system control board 300 being disposed within the mounting cavity 111. The first end of the flexible display screen 120 passes through the opening 112 and extends into the installation cavity 111, and a binding region is arranged at the first end of the flexible display screen 120 and electrically connected with the system control board 300. In the related art, in order to realize a narrow bezel, one end of the flexible display 120 is bent to the back side of the display area of the flexible display 120, so as to be bound with the system control board 300 at the back side of the display area. In the embodiment of the present application, the installation cavity 111 is disposed inside the winding shaft 110, the system control board 300 is disposed in the installation cavity 111, and the first end of the flexible display screen 120 extends into the installation cavity 111 through the opening 112 and is electrically connected to the system control board 300 through the binding region. Compared with the structure in the related art, the embodiment of the application provides the installation position for the system control board 300 by using the inner space of the scroll 110, so that the flexible display screen 120 does not need to be provided with a bending area and a binding area outside the scroll 110, and is further beneficial to obtaining a larger display area.

In some embodiments, the rollable display device 10 further includes a rechargeable battery (not shown) disposed within the mounting cavity 111 for powering the display assembly 100 and the system control board 300.

Further, the winding shaft 110 is provided with a data interface electrically connected to the system control board and a charging interface electrically connected to the rechargeable battery, so that external electronic devices, power supplies, and the like can conveniently transmit data to and charge the display module 100.

In some embodiments, as shown in fig. 8, fig. 8 can be a side sectional view of the reel, the outer contour of the reel 110 is spiral, and a step structure 113 is formed at the opening 112. It will be appreciated that a spiral is a curve that starts at a fixed point and spirals outwardly. In this embodiment, the outer contour of the winding shaft 110 is spiral, and the step structure 113 is formed at the opening 112, so that when the display assembly 100 is in the second state, the flexible display screen 120 is wound from the step structure 113 as a winding start end one by one, and a step difference formed by the step structure 113 and the thickness of the winding start end of the flexible display screen 120 are offset with each other, so that a local obvious protrusion does not occur after the flexible display screen 120 is wound, and the problem of stress concentration caused by the local protrusion of the flexible display screen 120 is further improved or avoided.

Further, as shown in fig. 8, the height of the step structure 113 is equal to the thickness of the flexible display 120, so that the step difference formed by the step structure 113 can be completely offset from the thickness of the starting end of the flexible display 120, thereby ensuring that no local protrusion occurs after the flexible display 120 is wound.

In some embodiments, the first end of the flexible display 120 is attached to the inner wall of the spool 110 by a nano-gel (not shown). In one aspect, the first end of the flexible display 120 is fixed to the scroll 110; on the other hand, the nano glue has micro elasticity, and the first end of the flexible display screen 120 is adhered to the inner wall of the scroll 110 through the nano glue, so that the flexible display screen 120 can be prevented from being damaged by tensile force in the using process. Furthermore, due to the process limitation, the inner wall of the scroll 110 may have poor flatness, and the nano-gel may compensate for the unevenness of the inner wall of the scroll 110, thereby preventing the flexible display 120 from being damaged due to the unevenness of the inner wall.

In some embodiments, as shown in fig. 8 and 9, the spool 110 includes a first semi-cylindrical housing 114 and a second semi-cylindrical housing 115, the first semi-cylindrical housing 114 and the second semi-cylindrical housing 115 being coupled in a snap-fit manner with each other and together defining the mounting cavity 111. In this embodiment, the winding shaft 110 includes two half-cylindrical housings that can be fastened together, so that the difficulty of processing the winding shaft 110 can be reduced, and accordingly, the processing accuracy of the winding shaft 110 can be improved.

In some embodiments, the rollable display device 10 further includes two decorative covers 116 mounted at both ends of the roller 110, and the decorative covers 116 can cover the seam formed at the ends of the first semi-cylindrical housing 114 and the second semi-cylindrical housing 115 after the snap-fit connection, thereby improving the aesthetic appearance of the roller 110.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent application shall be subject to the appended claims.

Claims

1. A rollable display device, comprising:

a display assembly comprising a mount, a spool, and a flexible display screen, a first end of the flexible display screen being connected to the spool, the mount being disposed at a second end of the flexible display screen opposite the first end; the display assembly has a deployed state and a rolled state, when the display assembly is in the deployed state, the flexible display screen is deployed relative to the reel, and when the display assembly is in the rolled state, the flexible display screen is rolled on the reel;

2. A rollable display device according to claim 1, further comprising a receiving sleeve provided with a receiving cavity;

wherein the display assembly is configured to be separated from the receiving sleeve in the unfolded state and to be capable of being inserted into or taken out of the accommodating cavity from outside the receiving sleeve in the rolled state;

3. A rollable display device according to claim 2, wherein an inner wall of the receiving sleeve is provided with a soft, compressible layer configured to compressively deform when the display assembly is received in the receiving cavity.

4. The rollable display device of claim 2, wherein the receiving sleeve comprises a first barrel section and a second barrel section, the first barrel section comprises a first end cap and a first sidewall, the second barrel section comprises a second end cap and a second sidewall, the first end cap, the first sidewall, the second end cap, and the second sidewall collectively define the receiving cavity and a pick-and-place port in communication with the receiving cavity, an axis of the first barrel section is arranged collinear with an axis of the second barrel section, and the first barrel section and the second barrel section are connected in a manner that a distance between the first end cap and the second end cap is adjustable, such that a volume of the receiving cavity and a size of the pick-and-place port can be adjusted.

5. The rollable display device of claim 2, wherein the receiving sleeve comprises a first barrel section and a second barrel section, the first barrel section comprising a first end cap and a first sidewall, the second barrel section comprising a second end cap and a second sidewall, the first end cap, first sidewall, second end cap, and second sidewall collectively defining the receiving cavity, an axis of the first barrel section disposed collinear with an axis of the second barrel section, the first sidewall and the second sidewall removably connected therebetween.

6. The rollable display device of claim 5, wherein the first end cap, first sidewall, second end cap, and second sidewall further define an access opening in communication with the receiving cavity.

7. A rollable display device according to claim 1, wherein a mounting cavity is provided inside the roller shaft, and an opening communicating with the mounting cavity is provided on the roller shaft;

the rollable display device further includes a system control board disposed within the mounting cavity;

the first end of the flexible display screen penetrates through the opening to extend into the installation cavity, a binding area is arranged at the first end, and the binding area is electrically connected with the system control board.

8. The rollable display device of claim 7, further comprising a rechargeable battery disposed within the mounting cavity for powering the display assembly and the system control board.

9. The rollable display device according to claim 8, wherein the spool is provided with a data interface electrically connected to the system control board and a charging interface electrically connected to the rechargeable battery.

10. A rollable display device according to claim 7, wherein the outer profile of the roller is helical and forms a step structure at the opening.

11. A rollable display device according to claim 10, wherein the height of the step structure is equal to the thickness of the flexible display screen.

12. A rollable display device according to claim 7, wherein the first end of the flexible display screen is attached to the inner wall of the roller by nano glue.

13. The rollable display device of claim 7, wherein the roller shaft includes a first semi-cylindrical housing and a second semi-cylindrical housing that are connected in a snap-fit relationship with each other and that collectively define the mounting cavity.

14. The rollable display device of claim 12, further comprising two decorative covers mounted at both ends of the spool.

15. The rollable display device according to claim 1, wherein the first support member includes a first mounting portion and a first support portion, the first mounting portion is detachably connected to the spool, the first mounting portion is rotatably disposed on a top portion of the first support portion, and an axial direction of rotation of the first mounting portion is parallel to an extending direction of the spool;

and/or, the second support piece comprises a second installation part and a second support part, the second installation part is detachably connected with the installation part, the second installation part is arranged at the top of the second support part in a self-rotating mode, and the self-rotating axial direction of the second installation part is parallel to the extending direction of the installation part.

16. A rollable display device according to claim 15,

the first mounting part is provided with a first fixing groove for inserting the reel, and the cross-sectional shape of the first fixing groove is matched with that of the reel;

and a second fixing groove for inserting the mounting part is formed in the second mounting part, and the sectional shape of the second fixing groove is matched with that of the mounting part.

17. A rollable display device according to claim 16, wherein inner walls of the first fixation slot and the second fixation slot are provided with a soft compressible layer.