CN111756895B

CN111756895B - Electronic device

Info

Publication number: CN111756895B
Application number: CN202010483060.9A
Authority: CN
Inventors: 史长春
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-06-01
Filing date: 2020-06-01
Publication date: 2021-04-30
Anticipated expiration: 2040-06-01
Also published as: CN111756895A

Abstract

The application discloses electronic equipment includes: the display device comprises a first display screen, a second display screen and a display module, wherein the first display screen comprises a first sub display screen and a second sub display screen; the first sub display screen and the second sub display screen are rotatably connected through the pivoting mechanism to fold or unfold the first display screen, and when the first display screen is folded, the first sub display screen and the second sub display screen are arranged in a stacked mode towards each other; and the first display screen and the second display screen are positioned on two opposite sides of the pivoting mechanism. According to the electronic equipment, when the first display screen is folded, the user can still check related information through the second display screen, so that the use requirement of the user when the electronic equipment is in a folded state can be met, and the practicability of the electronic equipment is improved. In addition, the first display screen does not need to be opened frequently, so that the power consumption of the electronic equipment can be reduced.

Description

Electronic device

Technical Field

The present application relates to the field of electronic devices, and more particularly, to an electronic apparatus.

Background

The foldable screen is one of the future main forms of electronic equipment, and the foldable screen has working states of unfolding, bending, half-bending and the like. In the related art, for the electronic device folded inwards, when the electronic device is in a flat state, the electronic device is similar to a flat panel, and when the electronic device is in a folded state, a screen cannot be used, but at this time, a user still needs to view information and time.

Disclosure of Invention

The application provides an electronic device, which can still meet the use requirements of users when being folded.

According to the electronic equipment of this application embodiment, include: the display device comprises a first display screen, a second display screen and a display control unit, wherein the first display screen comprises a first sub display screen and a second sub display screen; the first sub display screen and the second sub display screen are rotatably connected through the pivoting mechanism to fold or unfold the first display screen, and when the first display screen is folded, the first sub display screen and the second sub display screen are arranged in a stacked mode towards each other; the second display screen is arranged on the pivoting mechanism, and the first display screen and the second display screen are positioned on two opposite sides of the pivoting mechanism.

According to the electronic equipment of this application embodiment, through setting up the second display screen in pivot mechanism's one side that deviates from first display screen, when first display screen was folded, the user still can look over relevant information through the second display screen, can satisfy the user demand of user when electronic equipment is in fold condition from this to electronic equipment's practicality has been promoted. In addition, the first display screen does not need to be opened frequently, so that the power consumption of the electronic equipment can be reduced.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

FIG. 1 is an exploded view of an electronic device according to one embodiment of the present application;

FIG. 2 is a schematic structural diagram of an unfolded state of an electronic device according to one embodiment of the present application;

FIG. 3 is a cross-sectional view of the electronic device of FIG. 2;

FIG. 4 is a cross-sectional view taken at A in FIG. 3;

fig. 5 is a schematic structural diagram of an electronic device in a folded state according to an embodiment of the present application;

FIG. 6 is a cross-sectional view of the electronic device of FIG. 5;

FIG. 7 is a schematic diagram of a first display screen of an electronic device according to one embodiment of the present application;

FIG. 8 is a schematic structural view of a pivot mechanism and a second display screen according to one embodiment of the present application;

FIG. 9 is a schematic structural view of a pivot mechanism according to one embodiment of the present application, with a base plate not shown;

fig. 10 is an exploded view of the pivoting mechanism of fig. 9.

Reference numerals:

the electronic device 100, the first display screen 1,

a first sub-display 11, a first plane display part 111, a first bending part 112,

a second sub-display 12, a second flat display part 121, a second bending part 122,

the pivoting mechanism 2, the base plate 21, the third receiving groove 211,

a base 22, a first stopper 221, a second stopper 222, a first gear tooth 223, a second gear tooth 224,

the first pivot arm 23, the first limit groove 231, the first sliding groove 232,

the second pivot arm 24, the second limiting groove 241, the second sliding groove 242,

the first synchronization arm 25, the third cog 251, the first slider 252,

a second synchronization arm 26, a fourth gear 261, a second slider 262, a second display screen 3,

a first housing 41, a first receiving groove 411, a second housing 42, a second receiving groove 421,

the accommodating space 43.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.

The following disclosure provides many different embodiments, or examples, for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Further, the present application may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize the applicability of other processes and/or the use of other materials.

An electronic apparatus 100 according to an embodiment of the present application is described below with reference to the drawings.

The electronic device 100 may be a game device, a music playback device, a storage device, an AR (Augmented Reality) device, or a device applied to an automobile. Moreover, "electronic device 100100," as used herein, also includes, but is not limited to, an apparatus configured to receive/transmit communication signals via a wireline connection, such as via a Public Switched Telephone Network (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection, and/or another data connection/network, and/or via a wireless interface (e.g., for a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter, and/or another communications electronic device 100). The communication electronic apparatus 100 arranged to communicate over a wireless interface may be referred to as a "wireless communication device", a "wireless device", and/or a "mobile device". Examples of mobile devices include, but are not limited to, satellite or cellular telephones; personal Communications System (PCS) devices that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; PDAs that may include radiotelephones, pagers, internet/intranet access, Web browsers, notepads, calendars, and/or Global Positioning System (GPS) receivers; and a conventional laptop and/or palmtop receiver or other electronic device 100 that includes a radiotelephone transceiver.

As shown in fig. 1, an electronic device 100 according to an embodiment of the present application includes: a first display screen 1, a pivoting mechanism 2 and a second display screen 3.

Specifically, as shown in fig. 1 and 3, the first display screen 1 includes a first sub display screen 11 and a second sub display screen 12, the first sub display screen 11 and the second sub display screen 12 are rotatably connected by a pivot mechanism 2 to fold or unfold the first display screen 1, and when the first display screen 1 is folded, the first sub display screen 11 and the second sub display screen 12 are stacked toward each other.

It is understood that the first display panel 1 can be switched to the folded state when the first sub display panel 11 and the second sub display panel 12 are folded inwards, and at this time, the first sub display panel 11 and the second sub display panel 12 are stacked towards each other. Therefore, the overall size and volume of the electronic device 100 can be reduced, and the carrying convenience of a user is improved.

For example, in one example of the present application, when the first display screen 1 is unfolded, the first sub display screen 11 and the second sub display screen 12 are coplanar, and the first sub display screen 11 and the second sub display screen 12 display a complete picture; when the first display 1 is folded, the first sub-display 11 and the second sub-display 12 are stacked toward each other.

As shown in fig. 1 and 4, the second display 3 is provided on the pivoting mechanism 2, and the first display 1 and the second display 3 are located on opposite sides of the pivoting mechanism 2. It can be understood that the first display screen 1 and the second display screen 3 are respectively located at two opposite sides of the pivoting mechanism 2, when the first display screen 1 is folded, the second display screen 3 located at the other side of the pivoting mechanism 2 can still normally display, and at this time, the user can check related information (such as short messages, time and the like) through the second display screen 3, so that the use requirement of the user when the electronic device 100 is in a folded state can be met, and the practicability of the electronic device 100 is improved. In addition, since it is no longer necessary to frequently open the first display screen 1, power consumption of the electronic apparatus 100 can be reduced.

Alternatively, the second Display screen 3 may be an LCD (Liquid Crystal Display) screen, an OLED (organic light-Emitting Diode) screen, or an ink screen. For example, in one example of the present application, the second display screen 3 is an ink screen. The ink screen has the advantage of energy saving, so that the energy consumption of the electronic device 100 can be further reduced, and the standby time of the electronic device 100 can be prolonged.

In the related art, the sub-screen is provided on the back surface of the chassis of the electronic device, but this design may occupy a space in the thickness direction of the chassis, resulting in a thicker electronic device. In the present application, the second display 3 is disposed on the pivoting mechanism 2, so that the space of the housing is not occupied, and the thickness of the electronic device 100 can be reduced, and the electronic device 100 is made light and thin.

According to the electronic device 100 of the embodiment of the application, the second display screen 3 is arranged on the side, away from the first display screen 1, of the pivoting mechanism 2, when the first display screen 1 is folded, a user can still check related information through the second display screen 3, and therefore the use requirement of the user when the electronic device 100 is in a folded state can be met, and the practicability of the electronic device 100 is improved. In addition, since it is no longer necessary to frequently open the first display screen 1, power consumption of the electronic apparatus 100 can be reduced.

As shown in fig. 1, the first sub-display 11 and the second sub-display 12 are monolithic displays. It is understood that the first sub-display 11 and the second sub-display 12 are an integral display, and the first sub-display 11 and the second sub-display 12 are different display parts of a whole display. From this, can promote the convenience of first display screen 1 installation and dismantlement, can also promote the display effect of first display screen 1 simultaneously.

Of course, the present application is not limited thereto, and the first sub-display 11 and the second sub-display 12 may also be two split displays. Therefore, when the first sub-display screen 11 or the second sub-display screen 12 is damaged, only the damaged first sub-display screen 11 or the second sub-display screen 12 needs to be replaced, and therefore the cost of replacement and maintenance can be reduced.

As shown in fig. 1, the first sub-display 11 and the second sub-display 12 are flexible screens. It can be understood that the first sub-display 11 and the second sub-display 12 are integral display, and the first sub-display 11 and the second sub-display 12 are both flexible displays. The flexible screen has the advantages of thin thickness and strong flexibility, so that the electronic device 100 can be thinned, the requirements of the bending and folding flexible strength of the first display screen 1 can be met, and the working reliability of the electronic device 100 is improved.

Of course, the present application is not limited thereto, as shown in fig. 7, the first sub-display 11 may also include a first flat display portion 111 and a first bending portion 112 connected to each other, the second sub-display 12 includes a second flat display portion 121 and a second bending portion 122 connected to each other, and the second bending portion 122 is connected to the first bending portion 112, where the first flat display portion 111 and the second flat display portion 121 are rigid display portions, and the first bending portion 112 and the second bending portion 122 are flexible display portions. Therefore, only the first bending part 112 on the first sub-display 11 and the second bending part 122 on the second sub-display 12 which need to be bent need to be set as the flexible display parts, so that not only the requirement of the bending and folding flexible strength of the first display 1 can be met, but also the cost of processing and manufacturing the first display 1 can be reduced. It should be noted that the manufacturing cost of the rigid display panel is less than that of the flexible display panel.

As shown in fig. 2 and 4, the electronic device 100 further includes: the first sub-display 11 is connected to the first housing 41, and the second sub-display 12 is connected to the second housing 42. The first shell 41 and the second shell 42 respectively have limiting and protecting effects on the first sub-display screen 11 and the second sub-display screen 12, and the smoothness of a picture when the first display screen 1 displays can be improved by means of the first shell 41 and the second shell 42, so that the display effect of the first display screen 1 is improved.

As shown in fig. 4 to 6, when the first display screen 1 is folded, an end of the first casing 41 adjacent to the pivoting mechanism 2 is spaced apart from an end of the second casing 42 adjacent to the pivoting mechanism 2, and the second display screen 3 is spaced between the first casing 41 and the second casing 42. It can be understood that the spaced first and

second housings

41 and 42 do not obstruct the second display screen 3, thereby ensuring that the user can observe the display of the second display screen 3. For example, in one example of the present application, when the first display screen 1 is folded, one end of the first casing 41 adjacent to the pivoting mechanism 2 and one end of the second casing 42 adjacent to the pivoting mechanism 2 may form a gap, the second display screen 3 is disposed in the gap, and the first casing 41 and the second casing 42 do not shield the second display screen 3.

As shown in fig. 4, a first receiving groove 411 is formed on a side of the first housing 41 adjacent to the pivot mechanism 2, a second receiving groove 421 is formed on a side of the second housing 42 adjacent to the pivot mechanism 2, when the first display 1 is unfolded, the first receiving groove 411 and the second receiving groove 421 form a receiving space 43, and the second display 3 is located in the receiving space 43. It is understood that the second display screen 3 may be enclosed in the accommodating space 43 defined by the first casing 41 and the second casing 42, and the first casing 41 and the second casing 42 have a protective effect on the second display screen 3.

Specifically, in one example of the present application, during the rotation of the first display screen 1 from the folded state to the unfolded state, the inner wall of the first receiving groove 411 is always spaced apart from the outer surface of the first display screen 1, and the inner wall of the second receiving groove 421 is always spaced apart from the outer surface of the first display screen 1, so that the interference between the first housing 41 and the second housing 42 and the second display screen 3 during the rotation can be avoided.

As shown in fig. 4, 6 and 8, a third receiving groove 211 is formed in a side of the pivot mechanism 2 facing away from the first display screen 1, the third receiving groove 211 extends along the first direction of the pivot mechanism 2, and the second display screen 3 is disposed in the third receiving groove 211. The third accommodating groove 211 has a connecting and limiting effect on the second display screen 3, and the second display screen 3 can be prevented from falling off from the pivoting mechanism 2 accidentally. In addition, through setting up third holding tank 211, can also reduce the influence of the thickness of second display screen 3 to the whole quick-witted size of electronic equipment 100 to the convenience that electronic equipment 100 carried can be promoted.

As shown in fig. 6 and 8, the surface of the second display 3 facing away from the first display 1 is flush with the surface of the pivoting mechanism 2 facing away from the first display 1. It can be understood that the second display screen 3 may no longer protrude from the surface of the pivot mechanism 2, so that not only the third receiving groove 211 can be utilized to achieve better protection of the second display screen 3, but also the smoothness of the surface of the pivot mechanism 2 can be improved, thereby improving the comfort of the user.

As shown in fig. 9 and 10, the pivot mechanism 2 includes: the display device comprises a base plate 21, a first pivoting arm 23 and a second pivoting arm 24, wherein the second display screen 3 is arranged on one side of the base plate 21, which is far away from the first display screen 1, the base 22 is connected with the base plate 21, the base 22 is arranged on one side of the base plate 21, which is close to the first display screen 1, one end of the first pivoting arm 23 is rotatably connected with the base 22, the other end of the first pivoting arm 23 is connected with the first sub-display screen 11, one end of the second pivoting arm 24 is rotatably connected with the base 22, and the other end of the second pivoting arm 24 is connected with the second sub-display screen 12.

It can be understood that, the first and

second sub-displays

11 and 12 can be rotated relative to the substrate 21 by the first and

second pivot arms

23 and 24, and the first and

second pivot arms

23 and 24 have a simpler structure, so that the complexity of the structure of the pivot mechanism 2 can be simplified, the manufacturing difficulty of the pivot mechanism 2 can be reduced, the production efficiency of the pivot mechanism 2 can be improved, and the production cost of the pivot mechanism 2 can be reduced.

For example, in one example of the present application, the base 22 is plural, the plural bases 22 are spaced apart on a length line of the base plate 21, the first pivot arm 23 and the second pivot arm 24 are respectively provided in plural, and the plural first pivot arms 23 and the plural second pivot arms 24 are fitted to the plural bases 22 in a one-to-one correspondence.

As shown in fig. 9 and 10, one of the first pivoting arm 23 and the base 22 is provided with a first limiting groove 231, the other of the first pivoting arm 23 and the base 22 is provided with a first limiting block 221 matched with the first limiting groove 231, and the first limiting block 221 is adapted to rotate along the extending direction of the first limiting groove 231, so that the first sub-display 11 rotates towards the direction close to the second sub-display 12 or rotates towards the direction away from the second sub-display 12. It can be understood that the first limit groove 231 and the first limit block 221 are matched to limit the rotation track of the first pivot arm 23, so that the first pivot arm 23 rotates according to a preset track, thereby improving the reliability and accuracy of the relative rotation between the first pivot arm 23 and the base 22.

For example, in an example of the present application, the first pivot arm 23 is provided with a first limiting groove 231, the first limiting groove 231 is formed as an arc-shaped groove, and the base 22 is provided with a first limiting block 221 engaged with the first limiting groove 231. The number of the first limiting grooves 231 is two, the two first limiting grooves 231 are respectively located at two axial sides of the first pivoting arm 23, the number of the first limiting blocks 221 is two, and the two first limiting blocks 221 are correspondingly matched with the two first limiting grooves 231 one by one.

As shown in fig. 9 and 10, one of the second pivot arm 24 and the base 22 is provided with a second limiting groove 241, the other of the second pivot arm 24 and the base 22 is provided with a second limiting block 222 engaged with the second limiting groove 241, and the second limiting block 222 is adapted to rotate along the extending direction of the second limiting groove 241, so that the second sub-display 12 rotates towards the direction close to the first sub-display 11 or rotates towards the direction away from the first sub-display 11. It can be understood that the rotation track of the second pivot arm 24 can be limited by the cooperation of the second limiting groove 241 and the second limiting block 222, so that the second pivot arm 24 rotates according to a preset track, thereby improving the reliability and accuracy of the relative rotation between the second pivot arm 24 and the base 22.

For example, in an example of the present application, the second pivot arm 24 is provided with a second limiting groove 241, the second limiting groove 241 is formed as an arc-shaped groove, and the base 22 is provided with a second limiting block 222 engaged with the second limiting groove 241. The number of the second limiting grooves 241 is two, the two second limiting grooves 241 are respectively located on two axial sides of the second pivoting arm 24, the number of the second limiting blocks 222 is two, and the two second limiting blocks 222 are correspondingly matched with the two second limiting grooves 241.

As shown in fig. 9 and 10, the base 22 is provided with a first gear tooth 223 and a second gear tooth 224 which are engaged with each other, and the pivot mechanism 2 further includes: a first synchronizing arm 25 having a third cog 251 at one end of the first synchronizing arm 25, the third cog 251 being engaged with the first cog 223, the other end of the first synchronizing arm 25 being connected to the first pivot arm 23, a second synchronizing arm 26 having a fourth cog 261 at one end thereof, the fourth cog 261 being engaged with the second cog 224, the other end of the second synchronizing arm 26 being connected to the second pivot arm 24.

It can be understood that the first gear 223, the second gear 224, the third gear 251 and the fourth gear 261 can be used to realize the synchronous rotation of the first synchronization arm 25 and the second synchronization arm 26, so that the second sub-display 12 can be synchronously rotated when the first sub-display 11 is rotated, thereby improving the convenience of the user. Specifically, when a user rotates the first sub-display 11, the first sub-display 11 may drive the first pivoting arm 23 and the first synchronization arm 25 to rotate, the first synchronization arm 25 may drive the second synchronization arm 26 to rotate through the third gear 251, the first gear 223, the second gear 224, and the fourth gear 261, respectively, and the second synchronization arm 26 may drive the second pivoting arm 24 and the second sub-display 12 to rotate, so as to implement the synchronous rotation of the first sub-display 11 and the second sub-display 12.

Specifically, in one example of the present application, a rotation central axis of the first synchronizing arm 25 on the base 22 is spaced in parallel with an axis of a rotation center of the first pivot arm 23 on the base 22, one end of the first pivot arm 23 connected to the first sub-display 11 is provided with a first sliding groove 232, and one end of the first synchronizing arm 25 connected to the first pivot arm 23 is provided with a first sliding block 252 engaged with the first sliding groove 232. Thereby, the relative sliding connection of the first synchronizing arm 25 and the first pivot arm 23 is achieved while the relative rotation of the first synchronizing arm 25 and the base 22 and the relative rotation of the first pivot arm 23 and the base 22 are achieved.

As shown in fig. 9 and 10, the rotation center axis of the second synchronizing arm 26 on the base 22 is parallel to and spaced from the axis of the rotation center of the second pivoting arm 24 on the base 22, the end of the second pivoting arm 24 connected to the second sub-display 12 is provided with a second sliding slot 242, and the end of the second synchronizing arm 26 connected to the second pivoting arm 24 is provided with a second sliding block 262 engaged with the second sliding slot 242. Thereby, the relative sliding connection of the second synchronizing arm 26 and the second pivot arm 24 is achieved while the relative rotation of the second synchronizing arm 26 and the base 22 and the relative rotation of the second pivot arm 24 and the base 22 are achieved.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. An electronic device, comprising:

the display device comprises a first display screen, a second display screen and a display control unit, wherein the first display screen comprises a first sub display screen and a second sub display screen;

the first sub display screen and the second sub display screen are rotatably connected through the pivoting mechanism to fold or unfold the first display screen, and when the first display screen is folded, the first sub display screen and the second sub display screen are arranged in a stacked mode towards each other;

the second display screen is arranged on the pivoting mechanism, and the first display screen and the second display screen are positioned on two opposite sides of the pivoting mechanism.

2. The electronic device of claim 1, wherein the first sub-display and the second sub-display are monolithic displays.

3. The electronic device of claim 2, wherein the first sub-display and the second sub-display are flexible screens.

4. The electronic device according to claim 2, wherein the first sub-display comprises a first planar display portion and a first bending portion connected to each other, the second sub-display comprises a second planar display portion and a second bending portion connected to each other, and the second bending portion is connected to the first bending portion, wherein the first planar display portion and the second planar display portion are rigid display portions, and the first bending portion and the second bending portion are flexible display portions.

5. The electronic device of claim 1, further comprising:

the first sub-display screen is connected with the first shell;

a second housing, the second sub display screen being connected with the second housing,

when the first display screen is folded, an end of the first housing adjacent the pivot mechanism is spaced apart from an end of the second housing adjacent the pivot mechanism, the second display screen being spaced between the first housing and the second housing.

6. The electronic device of claim 5, wherein a side of the first housing adjacent to the pivot mechanism is provided with a first receiving slot, a side of the second housing adjacent to the pivot mechanism is provided with a second receiving slot, when the first display screen is unfolded, the first receiving slot and the second receiving slot form a receiving space, and the second display screen is located in the receiving space.

7. The electronic device of claim 1, wherein a side of the pivot mechanism facing away from the first display screen is provided with a third receiving groove, the third receiving groove extends along the first direction of the pivot mechanism, and the second display screen is disposed in the third receiving groove.

8. The electronic device of claim 7, wherein a surface of the second display screen facing away from the first display screen is flush with a surface of the pivot mechanism facing away from the first display screen.

9. The electronic device of claim 1, wherein the pivot mechanism comprises:

the second display screen is arranged on one side of the substrate, which is far away from the first display screen;

the base is connected with the substrate and is positioned on one side of the substrate, which is adjacent to the first display screen;

one end of the first pivoting arm is rotatably connected with the base, and the other end of the first pivoting arm is connected with the first sub-display screen;

and one end of the second pivoting arm is rotatably connected with the base, and the other end of the second pivoting arm is connected with the second sub-display screen.

10. The electronic device according to claim 9, wherein one of the first pivot arm and the base is provided with a first limiting groove, the other of the first pivot arm and the base is provided with a first limiting block engaged with the first limiting groove, and the first limiting block is adapted to rotate along an extending direction of the first limiting groove, so that the first sub-display screen rotates toward a direction close to the second sub-display screen or rotates toward a direction away from the second sub-display screen.

11. The electronic device according to claim 9, wherein one of the second pivot arm and the base is provided with a second limiting groove, the other of the second pivot arm and the base is provided with a second limiting block engaged with the second limiting groove, and the second limiting block is adapted to rotate along an extending direction of the second limiting groove, so that the second sub-display screen rotates toward a direction close to the first sub-display screen or rotates toward a direction away from the first sub-display screen.

12. The electronic device of claim 9, wherein the base has first and second gear teeth engaged with each other, the pivot mechanism further comprising:

one end of the first synchronous arm is provided with third gear teeth, the third gear teeth are meshed with the first gear teeth, and the other end of the first synchronous arm is connected with the first pivoting arm;

and one end of the second synchronous arm is provided with a fourth gear tooth, the fourth gear tooth is meshed with the second gear tooth, and the other end of the second synchronous arm is connected with the second pivoting arm.