Reel screen device and electronic device

Abstract

The present disclosure relates to the technical field of flexible display screens, and provides a reel screen device and an electronic device. The reel screen device comprises a screen back plate, a sliding assembly and a display screen. The sliding assembly is arranged in one side panel of the screen back plate and can at least partially slide out or slide into the screen back plate. The display screen comprises a display screen area and a standby display screen area connected with each other. The display screen area is arranged correspondingly to the screen back plate, and the standby display screen area is accommodated between the display screen area and the screen back plate. The other side of the standby display screen area is connected with the sliding assembly, and the sliding assembly can synchronously drive the standby display screen area to slide out of the screen back plate and at least partially display side by side with the display screen area. The electronic device comprises the reel screen device, and both can flexibly adjust the actual display area, fully meet the large display area of the screen, and can be compactly accommodated to save space.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of flexible display screens, and particularly relates to a scroll screen device and an electronic device. BACKGROUND

[0002] Flexible display screens are widely used in electronic devices in the prior art, and the most common application scenario of flexible display screens is a folding screen. The flexible display screen is used as a folding screen in an electronic device by virtue of the flexible and foldable characteristics of the flexible display screen, such as a mobile phone with a folding screen and a tablet with a folding screen.

[0003] For relatively large electronic devices such as notebook computers, the screen size is generally fixedly set. In order to provide better visual viewing experience for users, the size of the notebook computer is generally increased to correspondingly increase the area of the display screen.

[0004] However, for some light and thin notebooks and portable notebooks designed to be small in size, the prior art increases the area of the display screen by using a double screen or additionally configuring a portable auxiliary screen. However, both of the above-mentioned methods will affect the other use space of the notebook computer to some extent and increase the actual use area of the notebook computer.

[0005] Therefore, there is an urgent need for a new type of display screen in the market to solve the problem of insufficient display screen area of the notebook computer in the prior art. SUMMARY

[0006] The present disclosure provides a scroll screen device and an electronic device to solve the problem of insufficient display screen area of the notebook computer in the prior art.

[0007] The scroll screen device provided by the present disclosure comprises a screen back plate, a sliding assembly and a display screen.

[0008] The sliding assembly is arranged in one side surface of the screen back plate and can at least partially slide out or slide into the screen back plate.

[0009] The display screen comprises a display screen area and a standby display screen area connected to each other.

[0010] The display screen area is arranged corresponding to the screen back plate, and the standby display screen area is accommodated between the display screen area and the screen back plate.

[0011] The other side of the standby display screen area is connected to the sliding assembly, and the sliding assembly can synchronously drive the standby display screen area to slide out of the screen back plate and at least partially display side by side with the display screen area.

[0012] In an embodiment, the sliding assembly comprises a sliding plate, a mounting joint and a scissor hinge;

[0013] The sliding plate is arranged on one side of the screen back plate;

[0014] The mounting joint is fixedly arranged on the sliding plate;

[0015] One end of the scissor hinge is hingedly connected to the screen back plate, and the other end is hingedly connected to the mounting joint;

[0016] The scissor hinge can adjust its length by changing the included angle of the scissor hinge, so as to drive the mounting joint and the sliding plate to slide along the screen back plate.

[0017] In an embodiment, the scissor hinge further comprises a protruding limiting chuck;

[0018] The screen back plate is provided with a limiting chuck slot perpendicular to the sliding direction of the sliding assembly;

[0019] The limiting chuck is correspondingly inserted into the limiting chuck slot, and can reciprocally slide along the limiting chuck slot when the scissor hinge is extended or retracted.

[0020] In an embodiment, the scissor hinge further comprises a hinge spring;

[0021] One end of the hinge spring is connected to the mounting joint, and the other end is connected to the limiting chuck;

[0022] The hinge spring can be synchronously extended or retracted with the scissor hinge, so as to store or release elastic potential energy.

[0023] In an embodiment, the display screen further comprises a display tension spring;

[0024] One side of the standby display screen area is elastically connected to the mounting joint through the display tension spring;

[0025] When the mounting joint slides, the display tension spring can be correspondingly extended or retracted to drive the standby display screen area to move out or retract into the screen back plate.

[0026] In an embodiment, the display screen is a flexible display screen, and the display screen area and the standby display screen area are integrally connected;

[0027] The standby display screen area can be respectively bent at an angle of 360° with the display screen area to accommodate two sides of the display screen area;

[0028] And the sliding assembly can separately or simultaneously drive the standby display screen area to extend side by side on both sides of the display screen area.

[0029] In an implementation, the sliding assembly further comprises a sliding shaft;

[0030] The auxiliary display screen area is wrapped around the outer surface of the sliding shaft;

[0031] The sliding shaft can slide synchronously with the sliding plate and drive the auxiliary display screen area to slide and extend or slide and retract around the outer surface of the sliding shaft.

[0032] In an implementation, the scroll screen device further comprises a push-pull piece;

[0033] The push-pull piece is fixedly arranged on the side of the sliding plate opposite to the scissor hinge, and is used to drive the sliding assembly to reciprocate under the external force.

[0034] In an implementation, the sliding assembly is symmetrically arranged in the screen back plate.

[0035] The scissor hinges in the two sliding assemblies correspond to the auxiliary display screen areas respectively.

[0036] The two auxiliary display screen areas can slide in opposite directions under the driving of the sliding assembly.

[0037] In addition, the embodiment of the present disclosure further provides an electronic device comprising a device body and the scroll screen device.

[0038] The scroll screen device is electrically connected with the device body, and can display the image information output by the device body through the display screen area and / or the auxiliary display screen area.

[0039] Compared with the prior art, the technical scheme provided by the embodiment of the present disclosure has the following advantages:

[0040] The scroll screen device provided by the embodiment of the present disclosure ingeniously sets the display screen as the display screen area and an auxiliary display screen area which can slide synchronously with the sliding assembly. When more display area is needed, the auxiliary display screen area can be driven by the sliding assembly to slide out of the screen back plate and display side by side with the display screen area. When less display area is needed, the auxiliary display screen area can be driven by the sliding assembly to slide into the screen back plate and the display screen area. The scroll screen device has the beneficial effects of flexible adjustment of the actual display area, sufficient display area of the screen, and compact storage to save space.

[0041] In addition, the electronic device provided by the embodiment of the present disclosure comprises the scroll screen device, and can achieve the same beneficial effects, which will not be described here.

[0042] It is to be understood that the description of the contents of this section is not intended to identify key or essential features of embodiments of the disclosure, nor is it used to limit the scope of the disclosure. Other features of the disclosure will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0043] The above and other objects, features and advantages of the exemplary embodiments of the present disclosure will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which:

[0044] In the drawings, the same or corresponding parts are denoted by the same or corresponding reference numerals.

[0045] Figure 1 A cross-sectional view of a retracted state of a scroll screen device according to an embodiment of the present disclosure is shown;

[0046] Figure 2 A cross-sectional view of an extended state of a scroll screen device according to an embodiment of the present disclosure is shown;

[0047] Figure 3 A partial perspective view of an extended state of a scroll screen device according to an embodiment of the present disclosure is shown;

[0048] Figure 4 A partial perspective view of a retracted state of a scroll screen device according to an embodiment of the present disclosure is shown;

[0049] Figure 5 A schematic view of an electronic device according to an embodiment of the present disclosure is shown.

[0050] Explanation of reference numerals in the drawings: 1, screen back plate; 11, limiting clamping groove;

[0051] 2, sliding assembly; 21, sliding plate; 22, mounting joint; 23, scissor hinge; 231, limiting clamping head; 232, hinge spring; 24, display tension spring; 25, sliding shaft;

[0052] 3, display screen; 31, display screen area; 32, standby display screen area;

[0053] 4, push-pull piece; 5, device body. DETAILED DESCRIPTION

[0054] In order to make the purposes, features and advantages of the present disclosure more obvious and easy to understand, the technical solutions in the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments of the present disclosure. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present disclosure.

[0055] Embodiments of the present disclosure will be described in detail below with reference to the drawings.

[0056] In combination Figure 1 And Figure 2 As shown in the figure, the present embodiment provides a reel screen device, which comprises a screen backboard 1, a sliding assembly 2 and a display screen 3; the sliding assembly 2 is arranged in one side panel of the screen backboard 1 and can at least partially slide out or slide into the screen backboard 1; the display screen 3 comprises a display screen area 31 and a standby display screen area 32 connected with each other; the display screen area 31 is arranged corresponding to the screen backboard 1, and the standby display screen area 32 is accommodated between the display screen area 31 and the screen backboard 1; the other side of the standby display screen area 32 is connected with the sliding assembly 2, and the sliding assembly can synchronously drive the standby display screen area 32 to slide out of the screen backboard 1 and at least partially display side by side with the display screen area 31.

[0057] The reel screen device can be specifically used as a display screen and applied to electronic devices such as notebook computers, host computers, tablet computers and mobile phones. The use process is described below taking a notebook computer as an example.

[0058] The reel screen device provided by the present embodiment can be used as the main display screen of a notebook computer when the display screen area 31 corresponding to the screen backboard 1 in the display screen 3 is arranged. When a user needs more display area according to the use condition, the sliding assembly 2 is correspondingly slid out of the screen backboard 1, and the sliding assembly 2 can synchronously drive the standby display screen area 32 in the display screen 3 to slide out of the screen backboard 1, so that the standby display screen area 32 can at least partially display side by side with the display screen area 31, thereby effectively realizing the function of expanding and increasing the display area of the notebook computer. Moreover, the sliding assembly 2 can drive the standby display screen area 32 to slide out of the screen backboard 1 from any one or more of the left side, the right side and the upper side of the screen backboard 1 simultaneously or respectively, as long as the function of displaying side by side with the display screen area 31 can be realized.

[0059] In addition, when the user no longer needs more display area, the sliding assembly 2 is correspondingly slid into the screen backboard 1, so that the sliding assembly 2 can synchronously drive the standby display screen area 32 in the display screen 3 to slide into the screen backboard 1, thereby restoring the notebook computer to the state of using only the display screen area 31 as the actual display screen, so that the notebook computer can maintain the structure miniaturization, save the occupied space and be convenient to store.

[0060] In summary, compared with the prior art double screen or notebook computer with an additional portable auxiliary screen, the scroll screen device provided by the embodiment of the present disclosure ingeniously sets the display screen 3 into the display screen area 31 and a standby display screen area 32 capable of sliding synchronously with the sliding assembly 2. When more display area is needed, the standby display screen area 32 is only needed to slide out of the screen backboard 1 and display side by side with the display screen area 31 through the sliding assembly 2, and when less display area is needed, the standby display screen area 32 is only needed to slide into the screen backboard 1 and the display screen area 31 through the sliding assembly 2, thereby having the beneficial effects of being capable of flexibly adjusting the actual display area, fully meeting the large display area of the notebook computer, and being capable of compact storage and space saving.

[0061] In an implementable manner, the sliding assembly 2 comprises a sliding plate 21, a mounting joint 22 and a scissor hinge 23. The sliding plate 21 is correspondingly arranged to slide on one side of the screen backboard 1. The mounting joint 22 is fixedly arranged on the sliding plate 21. One end of the scissor hinge 23 is hingedly connected to the screen backboard 1, and the other end is hingedly connected to the mounting joint 22. The scissor hinge 23 is capable of adjusting its length by changing the scissor angle, so as to correspondingly drive the mounting joint 22 and the sliding plate 21 to slide along the screen backboard 1.

[0062] Specifically, in combination with Figure 2 , Figure 3 and Figure 4 further detailed description, the sliding assembly 2 is specifically arranged to comprise the sliding plate 21, the mounting joint 22 and the scissor hinge 23, and one end of the scissor hinge 23 is hingedly connected to the screen backboard 1, and the other end is connected to the sliding plate 21 through the mounting joint 22. In this way, when the scissor hinge 23 changes the scissor angle, the scissor hinge 23 can correspondingly lengthen or shorten, so as to realize the function of driving the mounting joint 22 and the sliding plate 21 to slide out or slide in along the screen backboard 1.

[0063] Of course, the above-mentioned sliding assembly 2 can also be arranged into other planar motion structures capable of realizing the sliding function, for example, can be arranged into a gear and rack type planar motion mechanism, a screw and nut type planar motion mechanism, etc.

[0064] The specific arrangement mode of the above-mentioned sliding assembly 2 has the beneficial effects of simple structure and being capable of flexibly driving the screen backboard 1 to slide out or slide in.

[0065] In an implementable manner, the scissor hinge 23 further comprises a protruding limiting clamping head 231. The screen backboard 1 is provided with a limiting clamping groove 11 perpendicular to the sliding direction of the sliding assembly 2. The limiting clamping head 231 is correspondingly inserted into the limiting clamping groove 11 and is capable of reciprocally sliding along the limiting clamping groove 11 when the scissor hinge 23 is extended or retracted.

[0066] Specifically, in combination withFigure 3 Further in detail, the limiting clamping head 231 protrudes towards the screen backboard 1, and a limiting clamping slot 11 corresponding to the sliding direction of the sliding assembly 2 is arranged in the plate surface of the screen backboard 1, so that the limiting clamping head 231 is correspondingly inserted into the limiting clamping slot 11, and when the sliding plate 21 is manually pulled and pushed by the user, the sliding plate 21 will correspondingly stretch or extrude to change the shearing angle of the scissor hinge 23, so that the limiting clamping head 231 relatively reciprocates in the limiting clamping slot 11. The limiting clamping head 231 and the limiting clamping slot 11 limit and cooperate with each other, on the one hand, it can limit the extension direction of the scissor hinge 23, and ensure that the scissor hinge 23 can reciprocate along the same fixed linear direction with the sliding plate 21; on the other hand, the limiting clamping head 231 and the limiting clamping slot 11 can be appropriately assembled to increase the resistance, so that the scissor hinge 23 is self-locked at any angle, and then the sliding plate 21 can be automatically fixed when it drives the standby screen area 32 to slide to any position relative to the screen backboard 1, ensuring the stability of the standby screen area 32 and the display screen area 31 when they are displayed side by side.

[0067] The specific arrangement of the limiting clamping head 231 and the limiting clamping slot 11 has the beneficial effects of simple structure, limiting the extension direction of the scissor hinge 23, and real-time self-locking of the sliding plate 21 and the standby screen area 32.

[0068] In an embodiment, the scissor hinge 23 is further provided with a hinge spring 232, one end of the hinge spring 232 is connected with the mounting connector 22, and the other end is connected with the limiting clamping head 231; the hinge spring 232 can synchronously extend and contract with the scissor hinge 23 to correspondingly store or release elastic potential energy.

[0069] Specifically, in combination with Figure 3 Further in detail, the scissor hinge 23 is further provided with a hinge spring 232, and the hinge spring 232 can be specifically arranged in correspondence with the two scissor arms of the scissor hinge 23. Since one end of the hinge spring 232 is connected with the mounting connector 22, and the other end is connected with the limiting clamping head 231, when the actual effective connection length of the scissor hinge 23 changes, the hinge spring 232 can synchronously extend and contract with the length change of the scissor hinge 23 to correspondingly store or release elastic potential energy, so that when the user manually pulls or pushes the sliding plate 21, the movement stroke can be more labor-saving, and the pulling and pushing process can be more smooth, avoiding the problem of accidental injury of the standby screen area 32 caused by too fast movement of the sliding plate 21.

[0070] The specific arrangement of the hinge spring 232 has the beneficial effects of simple structure and smoother movement process of the sliding plate 21.

[0071] In an embodiment, the display screen 3 further comprises a display spring 24, and one side of the standby display screen area 32 is elastically connected to the mounting connector 22 through the display spring 24; when the mounting connector 22 slides, the display spring 24 can correspondingly expand or contract to drive the standby display screen area 32 to move out or retract into the screen backboard 1.

[0072] Specifically, in combination with Figure 4 Further details, the display screen 3 further comprises a display spring 24, and one side of the standby display screen area 32 is elastically connected to the mounting connector 22 through the display spring 24; when the mounting connector 22 slides, the display spring 24 can correspondingly expand or contract to drive the standby display screen area 32 to move out or retract into the screen backboard 1.

[0073] The specific setting mode of the display spring 24 has the beneficial effects of simple structure, buffering the pulling force of the mounting connector 22, and avoiding accidental damage to one side of the standby display screen area 32.

[0074] In an embodiment, the display screen 3 is set as a flexible display screen, and the display screen area 31 and the standby display screen area 32 are integrally connected; the standby display screen area 32 can be respectively bent at an angle of 360° with the display screen area 31 to accommodate both sides of the display screen area 31; and the sliding assembly 2 can separately or simultaneously drive the standby display screen area 32 to extend side by side on both sides of the display screen area 31.

[0075] Specifically, in combination with Figure 1 and Figure 2 Further details, the display screen 3 is set as a whole flexible display screen, the display screen area 31 and the standby display screen area 32 are integrally connected, and the standby display screen area 32 can be respectively bent at an angle of 360° with the display screen area 31 to accommodate both sides of the display screen area 31; thus, when the reel screen device is in a normal state, the display screen 3 can only rely on the display screen area 31 for normal display, so that the notebook computer occupies less space and is easy to store; when the reel screen device is in an expanded display area state, the sliding assembly 2 can separately drive one side of the standby display screen area 32 or simultaneously drive both sides of the standby display screen area 32 to slide and extend out of the display screen area 31, and together with the display screen area 31 as the display area of the display screen 3; thus, the user can flexibly adjust the actual display width of the display screen 3 according to actual use requirements, so that the display screen 3 can provide a larger display range and improve user work efficiency and viewing experience.

[0076] Moreover, the flexible display screen has excellent bending resistance, and there is no need to worry about the problem of cracks at the bending connection between the standby display screen area 32 and the display screen area 31.

[0077] The specific arrangement of the display screen area 31 and the standby display screen area 32 has the beneficial effects of simple structure and flexible adjustment of the actual display width range of the display screen 3.

[0078] In an embodiment, the sliding assembly 2 further comprises a sliding shaft 25, the standby display screen area 32 is wrapped around the outer surface of the sliding shaft 25, and the sliding shaft 25 can slide synchronously with the sliding plate 21 and drive the standby display screen area 32 to slide and extend or slide and retract around the outer surface of the sliding shaft 25.

[0079] Specifically, in combination with Figure 1 and Figure 2 Further details, the sliding assembly 2 further comprises a sliding shaft 25, which can be specifically connected to the sliding plate 21 through the shaft end. This not only ensures that the sliding shaft 25 slides synchronously with the sliding plate 21, but also does not affect the forward and reverse rotation of the sliding shaft 25 around its axis.

[0080] Moreover, the standby display screen area 32 is wrapped around the outer surface of the sliding shaft 25, so that when the sliding assembly 2 moves, the standby display screen area 32 can slide and extend or slide and retract relative to the outer surface of the sliding shaft 25, effectively reducing the resistance when the standby display screen area 32 extends or retracts. In addition, the circular outer surface of the sliding shaft 25 can also avoid the problem of excessive bending damage at the connection between the standby display screen area 32 and the display screen area 31.

[0081] In an embodiment, the reel screen device further comprises a push-pull piece 4, which is fixedly arranged on the side of the sliding plate 21 opposite to the scissor hinge 23, and is used to drive the sliding assembly 2 to reciprocally slide under the external force.

[0082] Specifically, in combination with Figure 1 and Figure 2 Further details, the reel screen device further comprises a push-pull piece 4 fixedly arranged on the side of the sliding plate 21 opposite to the scissor hinge 23, and the push-pull piece 4 can be specifically arranged as a push-pull wrapping shell. On the one hand, it is convenient for two-handed gripping, and the sliding plate 21 is indirectly driven to reciprocally slide by directly moving the push-pull piece 4. On the other hand, when the reel screen device is in a normal state, the push-pull piece 4 is correspondingly buckled and fitted on both sides of the screen backboard 1, which can wrap and protect the standby display screen area 32, and avoid damage to the standby display screen area 32 caused by external impact.

[0083] The specific arrangement of the push-pull piece 4 has the beneficial effects of simple structure, convenient user gripping, and protection of the standby display screen area 32 from impact.

[0084] In an embodiment, two sliding assemblies 2 are symmetrically arranged in the screen backboard 1; the scissors hinges 23 in the two sliding assemblies 2 correspond to one display screen area 32 respectively; and the two display screen areas 32 can slide in opposite directions under the driving of the sliding assemblies 2.

[0085] Specifically, in combination with Figure 1 and Figure 2 In further detail, the sliding assemblies 2, the display screen areas 32 and the push-pull members 4 are symmetrically arranged about the central axis of the screen backboard 1, and the two display screen areas 32 can slide in opposite directions under the driving of the sliding assemblies 2, which fully meets the ergonomic design. When the user needs to adjust the actual display width of the display screen 3, the user pulls the push-pull members 4 on both sides of the screen backboard 1 with both hands, simultaneously driving the two display screen areas 32 to slide reversely to extend on both sides of the display screen area 31, and display side by side with the display screen area 31, and at this time the user is still corresponding to the center of the scroll screen device, ensuring the comfortable user experience.

[0086] In addition, the embodiment of the present disclosure also provides an electronic device including a device body 5 and the scroll screen device described above; wherein the scroll screen device is electrically connected with the device body 5, and can display the image information output by the device body 5 through the display screen area 31 and / or the display screen area 32.

[0087] Specifically, in combination with Figure 5 In further detail, the electronic device can be but is not limited to a notebook computer, a tablet computer, an all-in-one computer and the like electronic device having a display screen. Since the electronic device includes the scroll screen device described above, it can achieve all the beneficial effects thereof, which will not be described in detail here.

[0088] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present disclosure, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0089] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present disclosure, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A reeled screen device, characterized by The utility model relates to a screen backboard (1); Slip component (2) is arranged in the side panel of screen backboard (1), and can at least partially slide out or slide in screen backboard (1); Display screen (3) includes display screen area (31) and standby display screen area (32) connected with each other; Wherein; Display screen area (31) is arranged correspondingly with screen backboard (1), and standby display screen area (32) is stored between display screen area (31) and screen backboard (1); The other side of standby display screen area (32) is connected with slip component (2), and slip component can drive standby display screen area (32) to slide out screen backboard (1) simultaneously, and at least partially display with display screen area (31) side by side; Slip component (2) includes: Slip board (21) is correspondingly arranged in the side panel of screen backboard (1); Mounting joint (22) is fixedly installed in slip board (21); Scissor hinge (23) is hinged to screen backboard (1) at one end and is hinged to mounting joint (22) at the other end; Wherein, the scissor hinge (23) can adjust its length by changing the scissor angle to correspondingly drive the mounting joint (22) and the slip board (21) to slide along the screen backboard (1); The scissor hinge (23) further includes a protruding limiting chuck (231); The surface of the screen backboard (1) is provided with a limiting clamping groove (11) perpendicular to the sliding direction of the slip component (2); The limiting chuck (231) is correspondingly inserted into the limiting clamping groove (11), and can reciprocate along the limiting clamping groove (11) when the scissor hinge (23) is extended or retracted. The scissor hinge (23) further comprises a hinge spring (232); 2. A reelpn screen device according to claim 1, wherein, One end of the hinge spring (232) is connected with the mounting joint (22), and the other end is connected with the limiting chuck (231); The hinge spring (232) can be retracted or extended synchronously with the scissor hinge (23) to correspondingly store or release elastic potential energy. The display screen (3) further comprises a display tension spring (24); 3. The reelpnane device of claim 1, wherein, One side of the standby display screen area (32) is elastically connected with the mounting joint (22) through the display tension spring (24); When the mounting joint (22) slides, the display tension spring (24) can correspondingly extend or retract to drive the standby display screen area (32) to move out or retract into the screen backboard (1). The display screen (3) is a flexible display screen, and the display screen area (31) and the standby display screen area (32) are integrally connected; 4. The reelpn screen device of claim 1, wherein, The standby display screen area (32) can be bent at an angle of 360° with the display screen area (31) to accommodate both sides of the display screen area (31); And the slip component (2) can individually or simultaneously drive the standby display screen area (32) to extend side by side on both sides of the display screen area (31). The slip component (2) further comprises a sliding shaft (25); 5. The reelpen arrangement of claim 1, wherein, The standby display screen area (32) is wrapped around the outer surface of the sliding shaft (25). ​ The sliding shaft (25) can slide synchronously with the sliding plate (21) and drive the standby screen area (32) to slide and extend or slide and retract around the outer circumferential surface thereof.

6. The reelpn screen device of claim 1, wherein, The scroll screen device further comprises a push-pull piece (4); The push-pull piece (4) is fixedly arranged on the side of the sliding plate (21) opposite to the scissor hinge (23) and used for driving the sliding assembly (2) to reciprocally slide under the external force.

7. The reelpn screen device of claim 1, wherein, The sliding assembly (2) is symmetrically arranged in the screen back plate (1) and two; The scissor hinge (23) in each of the two sliding assemblies (2) is connected with one of the standby screen areas (32) respectively; The two standby screen areas (32) can slide in opposite directions under the driving of the sliding assembly (2).

8. An electronic device, comprising: The device body (5) and the scroll screen device according to any one of claims 1-7 are comprised; The scroll screen device is electrically connected with the device body (5) and can display the image information output by the device body (5) through the display screen area (31) and / or the standby screen area (32).

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