WO2023124463A1 - Foldable electronic device - Google Patents

Abstract

The present application relates to a foldable electronic device (10), comprising a housing assembly (100) and a flexible display screen (300). The flexible display screen (300) is arranged on the housing assembly (100), the flexible display screen (300) is provided with an effective region (S) for performing display, and the effective region (S) comprises a first planar region (S1) and a second planar region (S2) connected to the first planar region (S1). As the housing assembly (100) switches between a folded state and an unfolded state, the flexible display screen (300) has an inward-folded state, a flattened state and an outward-folded state, and the included angle between the first planar region (S1) and the second planar region (S2) is sequentially 0°, 180° and 360° in the inward folded state, the flattened folded state and the outward folded state.

Description

foldable electronics

This application claims the priority of the Chinese patent application with application number 2021116736797 and titled "Foldable Electronic Device" filed on December 31, 2021, which is hereby incorporated by reference in its entirety.

technical field

The present application relates to the technical field of terminals, in particular to a foldable electronic device.

Background technique

Most of the foldable electronic devices that appear at present adopt the scheme of book page folding inward or outward, and the inward folding scheme is that the screen is hidden inside after being folded, and it can only display a single large-screen display effect after unfolding, so It is inconvenient to use, and the solution of outward folding is that the screen is exposed on the outside after folding, and the screen is easily damaged.

Contents of the invention

According to various embodiments of the present application, a foldable electronic device is provided.

A foldable electronic device comprising:

shell components; and

A flexible display screen is arranged on the shell assembly; the flexible display screen has an effective area for displaying, and the effective area includes a first plane area and a second plane area connected to the first plane area; then When the shell assembly is switched between the folded state and the unfolded state, the flexible display screen has an inwardly folded state, a flattened state, and an outwardly folded state, and in the inwardly folded state, the unfolded state, and the outwardly folded state, In this state, the included angles between the first planar area and the second planar area are 0°, 180° and 360° in sequence.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present application. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a schematic diagram of a foldable electronic device in an inwardly folded state according to an embodiment of the present application;

FIG. 2 is a schematic diagram of the foldable electronic device shown in FIG. 1 in a flattened state;

FIG. 3 is a schematic diagram of the foldable electronic device shown in FIG. 1 in an outwardly folded state;

Fig. 4 is the enlarged schematic view of the structure at E place in Fig. 2;

Fig. 5 is a schematic diagram of the linkage between the screen adjustment component, the sensor and the circuit board in Fig. 4 to tighten or release the flexible display;

Fig. 6 is a schematic diagram of the operation flow of releasing or recovering the flexible display screen in coordination with each device in Fig. 5;

FIG. 7 is a schematic diagram of the flexible display screen and the supporting structures installed thereon in the foldable electronic device shown in 2;

Fig. 8 is a schematic diagram of two mating states of the slide rail support and the shell assembly shown in Fig. 7;

Figure 9 is an enlarged schematic view of the structure at F in Figure 7;

FIG. 10 is an enlarged schematic diagram of a partial structure of the foldable electronic device shown in FIG. 2;

Fig. 11 is a schematic diagram of the connection relationship between the first housing and the transmission mechanism in Fig. 10 .

Detailed ways

In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Preferred embodiments of the application are shown in the accompanying drawings. However, the present application can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the application more thorough and comprehensive.

As used herein, "terminal equipment" refers to a device capable of receiving and/or sending communication signals, including but not limited to, connected via any one or several of the following connection methods:

(1) Connection via wired lines, such as public switched telephone network (Public Switched Telephone Networks, PSTN), digital subscriber line (Digital Subscriber Line, DSL), digital cable, direct cable connection;

(2) Via wireless interface, such as cellular network, wireless local area network (Wireless Local Area Network, WLAN), digital TV network such as DVB-H network, satellite network, AM-FM broadcast transmitter.

A terminal device arranged to communicate over a wireless interface may be referred to as a "mobile terminal". Examples of mobile terminals include, but are not limited to, the following electronic devices:

(1) satellite phone or cellular phone;

(2) Personal Communications System (PCS) terminals that combine cellular radiotelephone and data processing, facsimile, and data communication capabilities;

(3) Radiotelephones, pagers, Internet/Intranet access, Web browsers, organizers, calendars, Personal Digital Assistants (PDAs) equipped with Global Positioning System (GPS) receivers;

(4) Conventional laptop and/or palm-type receivers;

(5) Conventional laptop and/or palm-sized radiotelephone transceivers and the like.

The foldable electronic device according to the embodiment of the present application includes a shell assembly and a flexible display screen, the flexible display screen is arranged on the shell assembly; the flexible display screen has an effective area for displaying, and the effective area includes a first plane region and a second planar region connected to the first planar region; as the shell component transitions between the folded state and the unfolded state, the flexible display screen has an inwardly folded state, a flattened state, and an outwardly folded state, In the inwardly folded state, the flattened state and the outwardly folded state, the included angles between the first planar area and the second planar area are 0°, 180° and 360° in sequence.

In some embodiments, at least one of the first planar area and the second planar area can move relative to the housing assembly, and the flexible display screen is at least in the flattened state and the outwardly folded state. tension.

In some embodiments, the flexible display screen includes a bending area between the first plane area and the second plane area, and the first plane area, the second plane area and the bending area The folded areas jointly constitute the effective area, and the area of the effective area changes with the change of the state of the flexible display screen.

In some embodiments, the flexible display screen includes an auxiliary area connected to the active area, and the foldable electronic device includes a screen adjustment component connected to the auxiliary area, and the screen adjustment assembly It is used to drive at least one of the first plane area and the second plane area to move relative to the shell assembly.

In some implementations, the foldable electronic device includes a circuit board and a sensor, the circuit board and the sensor are both built into the shell assembly, and the sensor is used to detect the first planar region and the second For information about the included angle between the two plane areas, the sensor and the screen adjustment component are both communicatively connected to the circuit board.

In some embodiments, the auxiliary areas are provided on opposite sides of the effective area, there are two screen adjustment components, and the two screen adjustment components are connected to the two auxiliary areas in one-to-one correspondence.

In some embodiments, the screen adjustment assembly includes a driving member and a first rotor, at least part of the auxiliary area is wound around the first rotor, and the driving member is connected to the first rotor and used to drive the The first rotor rotates.

In some embodiments, the shell assembly is formed with an opening, and the flexible display screen protrudes into the shell assembly through the opening, so that the active area is exposed outside the shell assembly, and the auxiliary area housed inside the shell assembly.

In some embodiments, the foldable electronic device further includes a second rotor, the screen adjustment component and the second rotor are arranged inside the shell component, the auxiliary area is connected with the screen adjustment component, and extending to the opening after wrapping around the outer circumference of the second rotor.

In some embodiments, the foldable electronic device further includes a first support structure, at least part of the auxiliary area is provided with the first support structure, the first support structure is used to support the auxiliary area, and When the auxiliary area wraps around the second rotor, it abuts against the second rotor.

In some embodiments, the first support structure includes a plurality of strip-shaped first support blocks, and the plurality of first support blocks are sequentially spaced from a position close to the effective area to a position away from the effective area arranged.

In some implementations, when the flexible display is in the inwardly-folded state, the cross-sectional shape of the bending region is in the shape of a drop; when the flexible display is in the outwardly-folded state, the bending area The cross-sectional shape of the region is arc-shaped; when the flexible display is in the flattened state, the bending region is coplanar with the first planar region and the second planar region.

In some embodiments, the foldable electronic device further includes a slide rail support, the slide rail support is disposed on the first plane area, and is slidably connected with the shell assembly, and is perpendicular to the second plane. The direction of a planar area resists the shell component to form a limit;

Alternatively, the foldable electronic device further includes a slide rail support, the slide rail support is arranged on the second plane area, and is slidably connected with the shell assembly, and is perpendicular to the second plane area. The direction is opposed to the shell assembly to form a limit.

In some embodiments, the foldable electronic device further includes a slide rail support, the slide rail support is slidably connected to the casing, and the first plane area and the second plane area are both provided with The above-mentioned slide rail support, wherein, the slide rail support provided on the first plane area is opposed to the shell assembly in a direction perpendicular to the first plane area to form a position limiter, and is located on the The slide rail supporting member in the second plane area abuts against the shell assembly in a direction perpendicular to the second plane area to form a position limit.

In some embodiments, the foldable electronic device further includes a second support structure disposed in the bending area, and the second support structure is used to support the bending area.

In some embodiments, the second support structure includes a plurality of strip-shaped second support blocks, and the plurality of second support blocks are arranged sequentially from the first planar area to the second planar area, When the flexible display screen is in the flattened state and the outwardly folded state, any adjacent two of the second support blocks cooperate with each other to support the bending area.

In some embodiments, at least one of the following technical solutions is also included:

Any two adjacent second support blocks are respectively provided with a first magnetic attraction and a second magnetic attraction, and the first magnetic attraction and the second magnetic attraction are magnetically attracted;

Alternatively, any two adjacent second support blocks are respectively provided with a first abutment portion and a second abutment portion, and in the flattened state, any two adjacent second support blocks pass through the first abutting portion. A resisting portion is resisted against the second resisting portion, and a plurality of the second supporting blocks can jointly form a supporting surface parallel to the first planar area and the second planar area;

Alternatively, any adjacent two of the second support blocks are respectively provided with a third abutment portion and a fourth abutment portion, and in the outwardly folded state, any adjacent two of the second support blocks pass through the first The three abutting portions are abutted against the fourth abutting portion, and a plurality of the second support blocks jointly form an arc-shaped support surface capable of supporting the bending area, and the bending area is supported on the arc-shaped support. Under the support of the surface, it is smoothly connected with the first planar area and the second planar area.

In some embodiments, the foldable electronic device further includes an elastic elastic support member, the elastic support member is arranged between the second support structure and the bending area, and is used to support the bending area. district.

In some embodiments, the elastic supporting member is in the shape of a sheet.

In some embodiments, the shell assembly includes a first shell and a second shell, the first plane area is located on the first shell, and the second plane area is located on the second shell; The foldable electronic device includes a transmission mechanism, the transmission mechanism includes a cover, a first link assembly and a second link assembly, the first link assembly connects the cover and the first housing, so The second link assembly is connected to the cover and the second housing, and the first link assembly and the second link assembly are respectively connected to both ends of the cover; the flexible display screen When it is in a flattened state, the first casing and the second casing are respectively located at both ends of the cover, and when the flexible display is in a folded state, the first casing and the second casing are Both housings are located on one side of the inner surface of the cover, and when the flexible display screen is in a folded state, the first housing and the second housing are both located on one side of the outer surface of the cover .

In some embodiments, the first housing includes a first support body and a first protection body connected to the first support body, the first planar area is located on the first support body, and the A housing interior along a direction perpendicular to the first plane area, the first support body and the first protection body are respectively provided with a first connection part and a second connection part opposite to each other; the first connecting rod The assembly includes a first connecting rod and a second connecting rod, the two ends of the first connecting rod are respectively connected to the first connecting part and the cover in rotation; one end of the second connecting rod is connected to the cover Rotationally connected, the other end is slidably connected to the second connecting part along a direction parallel to the first planar area; and/or,

The second housing includes a second support body and a second protection body connected to the second support body, the second planar area is located on the second support body, and is vertically inside the second housing body. In the direction of the second planar area, the second supporting body and the second protective body are respectively provided with a third connecting portion and a fourth connecting portion; the second connecting rod assembly includes a third connecting rod and the fourth connecting rod, the two ends of the third connecting rod are respectively connected to the third connecting part and the cover in rotation; one end of the fourth connecting rod is connected to the cover in rotation, and the other end is connected to the cover in rotation. The fourth connecting portion is slidably connected along a direction parallel to the second planar area.

In some embodiments, when the first connecting rod assembly includes a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod are respectively connected to two spacers on the cover. position, and can rotate 180° relative to the cover; when the second link assembly includes a third link and a fourth link, the third link and the fourth link are respectively It is connected to two spaced positions on the cover, and both of them can rotate 180° relative to the cover.

In some embodiments, the flexible display screen includes a protective layer, a functional layer, and a buffer layer that are sequentially stacked from outside to inside; the foldable electronic device also includes at least one of the following technical solutions:

The protective layer has a transparent structure and can allow light to pass through;

Alternatively, the functional layer is a flexible panel that can be bent and deformed;

Alternatively, the elastic deformation capacity of the buffer layer in a direction parallel to its plane is smaller than the elastic deformation capacity in a direction perpendicular to its plane.

As shown in FIG. 1 to FIG. 3 , the foldable electronic device 10 of this embodiment may be, but not limited to, terminal devices such as mobile phones and tablet computers, or other portable electronic devices. In the implementation manner of this application, a mobile phone is taken as an example for description.

Referring to FIGS. 1 to 3 , specifically, the foldable electronic device 10 includes a case assembly 100 and a flexible display 300 . The flexible display 300 is disposed on the case assembly 100 . The flexible display screen 300 has an active area S for displaying. The active area S includes a first plane area S1 and a second plane area S2 connected to the first plane area S1. The flexible display screen 300 has an inwardly folded state (as shown in FIG. 1 ), a flattened state (as shown in FIG. 2 ) and an outwardly folded state (as shown in FIG. 3 ). In the outwardly folded state, the included angles between the first planar area S1 and the second planar area S2 are 0°, 180° and 360° in sequence.

It can be understood that the shell assembly 100 includes a first shell 110 and a second shell 130 connected to the first shell 110 , the first shell 110 and the second shell 130 are hollow structures for built-in flexible display screen 300 Associated electronic components for display. At least part of the first housing 110 is covered by the flexible display 300, and at least part of the second housing 130 is covered by the flexible display 300, that is, both the first housing 110 and the second housing 130 are directly or indirectly connected to the flexible display 300 , and jointly play a supporting role for the flexible display screen 300 .

It can be understood that the area capable of displaying in the flexible display screen 300 is the effective area S. In order to better display the effective area S, the first housing 110 may provide a first flat mounting surface (not shown), and the second housing 130 may provide a second flat mounting surface (not shown) After the flexible display screen 300 is connected to the first housing 110 and the second housing 130, the part of the flexible display screen 300 corresponding to the first installation surface is close to the first installation surface and becomes a first planar region S1 of a plane, corresponding to The part of the flexible display screen 300 on the second installation surface is close to the second installation surface to form a second planar region S2 that is planar. In addition, when the flexible display 300 changes between the inwardly folded state, the flattened state and the outwardly folded state, both the first planar area S1 and the second planar area S2 are planar and will not be bent.

It can be understood that when the flexible display screen 300 is in the folded state, the first planar area S1 and the second planar area S2 are in contact with each other, and the angle between them is 0°. At this time, the effective area S is covered by the first The casing 110 and the second casing 130 are clamped, that is, the effective area S is located between the first casing 110 and the second casing 130 and cannot be exposed, so it cannot be displayed, but the first casing 110 and the second casing 130 can protect the active area S to prevent the active area S from being damaged. When the flexible display screen 300 is in the flattened state, the entire effective area S is flattened, so that the first plane area S1 and the second plane area S2 are coplanar and the angle between them reaches 180°. At this time, the effective area S All of them can be displayed so that the foldable electronic device 10 has the largest display area, thereby realizing a large-screen display. When the flexible display screen 300 is in the outwardly folded state, the angle between the first plane area S1 and the second plane area S2 is 360°, and the two are relatively spaced apart, and the first housing 110 and the second housing 130 are located Between the first plane area S1 and the second plane area S2. At this time, the first planar area S1 and the second planar area S2 can be displayed separately, so that the foldable electronic device 10 can realize a half-screen display.

It can be understood that the first shell 110 is connected with the second shell 130 and both can move relative to each other, so that the shell assembly 100 is in an unfolded state or a folded state. It can be understood that the shell assembly 100 can be folded or unfolded similarly to a book. When folded, the first shell 110 and the second shell 130 are stacked together like two pages of book paper. When unfolded, the first shell 110 and the second shell 130 are stacked together. 110 and the second casing 130 are unfolded like two pages of paper and are coplanar. Alternatively, it can be understood that the first shell 110 and the second shell 130 are stacked together in the shell assembly 100, and the first mounting surface of the first shell 110 is roughly in contact with the second mounting surface of the second shell 130. state, at this time, the shell assembly 100 is in a folded state, and the flexible display screen 300 is in a folded state; in the shell assembly 100, the first shell 110 and the second shell 130 are stacked together, and the first shell 110 of the first shell 110 The installation surface and the second installation surface of the second casing 130 form the two outermost surfaces of the shell assembly 100 in the stacking direction. At this time, the shell assembly 100 is also in a folded state, and the flexible display screen 300 is in a folded state; The first shell 110 and the second shell 130 in the shell assembly 100 can be placed at two positions on the horizontal plane, and the first mounting surface of the first shell 110 is shared with the second mounting surface of the second shell 130 and both are parallel to the horizontal plane. At this time, the shell assembly 100 is in the unfolded state, and the flexible display screen 300 is in the flattened state. It can also be understood that when the flexible display screen 300 is in the folded state and the folded state, the shell assembly 100 is in the folded state, and when the flexible display screen 300 is in the flattened state, the shell assembly 100 is in the unfolded state.

In the above-mentioned foldable electronic device 10, by making the flexible display 300 have three states of inward folding, flattening and outward folding, and in the process of use, it can be displayed on a large screen in the flattened state, or can be switched to the outward folding state. The status is displayed on a half-screen, so that the foldable electronic device 10 can meet various usage needs of users. In addition, after use, the flexible display screen 300 can also be converted to an inwardly folded state, so that the effective area S is hidden, so that the shell assembly 100 can protect the flexible display screen 300, preventing the effective area S from being exposed due to exposure. damage.

Specifically, at least one of the first planar area S1 and the second planar area S2 can move relative to the shell assembly 100 , and the flexible display screen 300 is tensioned at least in a flattened state and an outwardly folded state. During the state transition of the flexible display screen 300, the first planar area S1 and/or the second planar area S2 move relative to the shell assembly 100 to adapt to the shape change of the shell assembly 100, thereby ensuring flexibility in the flattened state and the outwardly folded state. The display screen 300 is tensioned to avoid warping and deformation of the effective area S if it is not tensioned, and thus cannot perform normal display.

Specifically, one end of the flexible display 300 can be fixedly connected to the first casing 110, and the other end can be moved relative to the second casing 130. At this time, during the state transition of the flexible display 300, the flexible display The second plane area S2 of the screen 300 moves relative to the second casing 130 to tension the flexible display screen 300 in the flattened state and the outwardly folded state. Alternatively, one end of the flexible display screen 300 may be fixedly connected to the second housing 130, and the other end may be movable relative to the first housing 110. At this time, during the state transition of the flexible display screen 300, the flexible display The first planar area S1 of the screen 300 moves relative to the first housing 110 to tension the flexible display screen 300 in a flattened state and an outwardly folded state. In the embodiment of the present application, one end of the flexible display 300 moves relative to the first casing 110, and the other end of the flexible display 300 moves relative to the second casing 130, so that the first planar area S1 of the flexible display 300 Relative to the first housing 110 , the second planar area S2 can move relative to the second housing 130 , so as to be able to tension the flexible display screen 300 in a flattened state and an outwardly folded state.

Specifically, the flexible display screen 300 includes a bending region S3 located between the first planar region S1 and the second planar region S2, the first planar region S1, the second planar region S2 and the bending region S3 together constitute an effective region S, The area of the active area S changes as the state of the flexible display 300 changes. It can be understood that during the state transition process of the flexible display screen 300, the first planar region S1 and the second planar region S2 remain flat without deformation, and the bending region S3 is connected to the first planar region S1 and the second planar region S2. In between, the shape changes with the change of the included angle between the first planar region S1 and the second planar region S2. In the flattened state, the bending area S3 is coplanar with the first planar area S1 and the second planar area S2 , and the bending area S3 is capable of displaying images, so it also belongs to a part of the effective area S. It can be understood that as the angle between the first plane area S1 and the second plane area S2 gradually increases, the flexible display screen required to extend from the first installation surface to the second installation surface and cover the two and the area between the two The area of 300 will increase, and this part of the flexible display 300 is also the effective area S of the flexible display 300, and as the angle between the first plane area S1 and the second plane area S2 gradually decreases, the effective area S area is also gradually reduced. In this way, by changing the area of the effective area S as the state of the flexible display 300 changes, it can be ensured that the effective area S can just cover the first installation surface, the second installation surface and the area between them, thereby It can maintain normal display in various states, avoiding the problem that the effective area S is redundant or is pulled by transition and affects the normal display.

2 and 7, it can be understood that the flexible display 300 extends from the first housing 110 to the second housing 130 to have a length direction (direction along the X-axis), and has a width direction perpendicular to the length direction (direction along the Y axis), and also has a thickness direction (direction along the Z axis). With the change of the angle between the first plane area S1 and the second plane area S2, the first plane area S1 may move relative to the first housing 110, or the second plane area S2 may move relative to the second housing 130, or The first plane area S1 moves relative to the first housing 110, and the second plane area S2 moves relative to the second housing 130, so that the size of the effective area S in the length direction changes, but the size in the width direction does not change, so that the effective area S The area of the region S changes. It can be understood that the area change of the effective area S is not obtained by pulling and extending the flexible display screen 300 in the length direction, but that the part of the flexible display screen 300 that is not originally the active area S moves to correspond to the first installation surface and the second installation surface. After the installation surface is transformed into a part of the effective area S obtained.

As shown in FIG. 1 to FIG. 4 , in the embodiment of the present application, the flexible display screen 300 includes an auxiliary area 310 connected to the active area S, and the foldable electronic device 10 includes a screen adjustment component 500 , and the screen adjustment component 500 and the auxiliary area 310 connected, the screen adjustment assembly 500 is used to drive at least one of the first plane area S1 and the second plane area S2 to move relative to the housing assembly 100 . By setting the screen adjustment component 500, the flexible display screen 300 can be driven to move, and part of the auxiliary area 310 can be converted into a part of the effective area S for display, or part of the effective area S can be converted into a part of the auxiliary area 310, so that The area of the effective area S is changed. Or it can be understood that the auxiliary area 310 is composed of two parts, one part is a part of the flexible display screen 300 that can be converted between the active area S and the auxiliary area 310, and the other part is far away from the active area S and cannot be converted into a Part of the flexible display screen 300 in the active area S.

1 to 6, further, the screen adjustment assembly 500 includes a driving member 510 and a first rotor 520 connected to the driving member 510, part of the auxiliary area 310 is wound around the first rotor 520, and the driving member 510 is connected to the first rotor 520. The rotor 520 is connected, and the driving member 510 is used to drive the first rotor 520 to rotate. It can be understood that during the process of driving the first rotor 520 to rotate by the driving member 510 to release the flexible display screen 300, part of the auxiliary area 310 can be converted into an effective area S, thereby increasing the area of the effective area S, and the driving member 510 drives the first During the rotation of the rotor 520 to wind up the flexible display screen 300 , part of the effective area S can be transformed into the auxiliary area 310 , so that the area of the active area S can be reduced. Specifically, the driving member 510 is a servo motor, and by connecting the first rotor 520 to the output shaft of the driving member 510, the flexible display screen 300 can be driven while occupying a small space. In other embodiments, the first rotor 520 can also be replaced by a gear and a rack, and the gear is driven to rotate through the driving member 510, so that the gear drives the rack to translate, so that the rack drives the flexible display 300 to move.

Specifically, the shell assembly 100 is formed with an opening 150 through which the flexible display 300 protrudes into the shell assembly 100 , so that the active area S is exposed outside the shell assembly 100 , and the auxiliary area 310 is accommodated inside the shell assembly 100 . The auxiliary area 310 is housed inside the shell assembly 100 and hidden, and when the area of the active area S increases, part of the auxiliary area 310 can be exposed outside the shell assembly 100 through the opening 150 and converted into a part of the active area S. Further, when the first planar area S1 moves relative to the shell assembly 100 , an opening 150 may be provided at an end of the first shell 110 away from the second shell 130 . When the second planar area S2 moves relative to the shell assembly 100 , an opening 150 can be defined at an end of the second housing 130 away from the first housing 110 . Specifically, in this application, an opening 150 is opened at the end of the first housing 110 away from the second housing 130 and the end of the second housing 130 away from the first housing 110 , so that one end of the flexible display 300 passes through the One opening 150 protrudes into the first housing 110 , and the other end protrudes into the second housing 130 through the other opening 150 .

Further, the foldable electronic device 10 further includes a second rotor 160, the screen adjustment component 500 and the second rotor 160 are arranged inside the shell component 100, the auxiliary area 310 is connected with the screen adjustment component 500, and after wrapping around the outer circumference of the second rotor 160 Extends to opening 150 . By setting the second rotor 160, the flexible display screen 300 can be buffered between the opening 150 and the screen adjustment assembly 500, so that the flexible display screen 300 can smoothly extend from the outside of the shell assembly 100 to the inside of the shell assembly 100, avoiding the The 300 bending angle is too large and it is easy to be damaged. Specifically, the second rotor 160 is disposed corresponding to the opening 150 , and the auxiliary area 310 bypasses the second rotor 160 and extends toward the opening 150 in an arc shape.

Specifically, auxiliary areas 310 are provided on opposite sides of the effective area S, and there are two screen adjustment assemblies 500, and the two screen adjustment assemblies 500 are connected to the two auxiliary areas 310 in one-to-one correspondence, and one of the screen adjustment assemblies 500 is arranged on the The first housing 110 and another screen adjustment component 500 are disposed on the second housing 130 . By setting two screen adjustment components 500 to simultaneously tighten or release the flexible display screen 300 from both ends of the flexible display screen 300, the smooth adjustment of the area of the effective area S can be achieved in a short period of time, avoiding the need for a single screen The slow adjustment speed of the adjustment component 500 takes a long time or the fast adjustment speed makes the flexible display screen 300 easy to be damaged, thereby improving user experience.

1 to 6, specifically, the foldable electronic device 10 includes a circuit board 810 and a sensor 820, both of which are built in the case assembly 100, and the sensor 820 is used to detect the first planar area S1 and the second For information about the included angle between the two planar areas S2 , the sensor 820 and the screen adjustment component 500 are both in communication connection with the circuit board 810 . It can be understood that the sensor 820 can send the detected angle information between the first plane area S1 and the second plane area S2 to the circuit board 810, and the circuit board 810 then sends a signal to the screen adjustment assembly 500, so that the screen adjustment assembly 500 drives the flexible The display screen 300 moves, so that the area of the effective area S changes as the state of the flexible display screen 300 changes. Specifically, the sensor 820 can periodically send included angle information to the circuit board 810 , and the circuit board 810 can determine the change trend and speed of the included angle through a plurality of included angle information. Further, the sensor 820 is a Hall sensor, and may also be other sensors 820 with similar functions. Further, the circuit board 810 (not shown in the figure) may integrate a processor, a power management module, a storage unit, a baseband chip, and the like.

In the embodiment in which the screen adjustment assembly 500 includes a driver 510 and a first rotor 520, and the driver 510 is a servo motor, the sensor 820 detects the distance between the first plane area S1 and the second plane area S2 in the initial state. The included angle α is 0°, that is, the sensor 820 is at the initial position in the inwardly folded state. For the included angle data α sent by the sensor 820, the circuit board 810 first determines the change trend of α, and if α is gradually increasing, it is judged that the flexible display screen 300 needs to be converted from the inwardly folded state to the flattened state or from the flattened state. When the state is turned outward, the area of the effective area S needs to be increased, so a signal is sent to the servo motor to make the servo motor rotate forward, and the servo motor further drives the first rotor 520 to rotate forward to release the flexible display 300; if α is If the trend is gradually decreasing, it is judged that the flexible display screen 300 needs to switch from the outwardly folded state to the flattened state or from the flattened state to the inwardly folded state, then the area of the effective area S needs to be reduced, so a signal is sent to the servo motor so that The servo motor reverses, and the servo motor further drives the first rotor 520 to rotate in reverse to wind up the flexible display screen 300 . In addition, by judging the relationship between α and 180°, it can be determined that the flexible display screen 300 specifically transitions from the inward-folded state to the flattened state, from the flattened state to the outward-folded state, from the outward-folded state to the flattened state, and from the folded state to the flattened state. One of the transitions from the flattened state to the folded state. In addition, the forward or reverse rotation speed of the servo motor can be controlled by changing the speed of the included angle, so as to avoid redundant or excessive pulling of the flexible display screen 300 . In other embodiments, when the sensor 820 detects that the angle α between the first plane area S1 and the second plane area S2 is 180°, that is, when the flexible display screen 300 is in a flattened state, the sensor 820 Set to the initial state.

Further, in the case of setting two screen adjustment assemblies 500, set one of the screen adjustment assemblies 500 as the first screen adjustment assembly and the other as the second screen adjustment assembly: the angular velocity of the servo motor in the first screen adjustment assembly is w1, the radius of the first rotor 520 is r1, the angular velocity of the servo motor in the second screen adjustment assembly is w2, the radius of the first rotor 520 is r1', and the change angular velocity of α is w2, then the following relationship exists:

w1f(r1,n)=w1'f(r1',n)=G(w2*l)

Wherein, n is the thickness of the flexible display screen 300, and the first rotor 520 rotates once, and the radius of rotation increases by n; the size change of the effective area S along the length direction is l, and l is related to the inwardly folded state of the bending area S3, the outwardly folded It is related to the shape in the folded state.

It can be understood that the adjustment amounts of the first screen adjustment component and the second screen adjustment component to the flexible display screen 300 are equal, and f(r1,n), f(r1',n), and G(w2*l) are known In the case of , w1 and w1' can be calculated, so that the two screen adjustment assemblies 500 can effectively recover or release the flexible display screen 300 without redundancy or excessive pulling. In particular, in the flattened state, the two screen adjustment assemblies 500 tend to tighten the flexible display screen 300 to improve the flatness of the bending area S3, thereby reducing creases and helping to support the bending area S3.

Specifically, since the flexible display screen 300 has a certain thickness, a step consistent with the thickness of the flexible display screen 300 is provided on the outer periphery of the first rotor 520, and the end of the flexible display screen 300 is just placed at the step, so that the flexible display screen 300 After one rotation along the first rotor 520 , it transitions smoothly to the previous round of flexible display screen 300 , so as to continue winding in a helical shape. In this way, the radius of rotation increases by n every time the first rotor 520 rotates one round.

As shown in FIG. 2 and FIG. 7, in the embodiment of the present application, the foldable electronic device 10 includes a first support structure 610, at least part of the auxiliary area 310 is provided with the first support structure 610, and the first support structure 610 is used to support the auxiliary area 310 , and abut against the second rotor 160 when the auxiliary area 310 wraps around the second rotor 160 . By setting the first support structure 610, the flexible display screen 300 can be supported, reducing the possibility of the auxiliary area 310 being stretched and deformed, and at the same time increasing the minimum bending radius of the flexible display screen 300 to avoid bending of the flexible display screen 300 Damage due to overdose. Specifically, all of the auxiliary area 310 is provided with the first support structure 610. It should be noted that the auxiliary area 310 referred to here includes a part of the flexible display screen 300 that can be switched between the active area S and the auxiliary area 310. In other embodiments, only a part of the auxiliary region 310 may be provided with the first support structure 610 . Alternatively, in other embodiments, the first support structure 610 may also be provided in the effective area S. Specifically, when the auxiliary area 310 wraps around the second rotor 160, the first support structure 610 contacts the second rotor 160, so that the second rotor 160 does not directly contact the auxiliary area 310, so as to reduce the relative strength of the auxiliary area 310 to the second rotor 160. The possibility of the rotor 160 being worn as it moves back and forth.

Further, the first support structure 610 includes a plurality of strip-shaped first support blocks, and the plurality of first support blocks are arranged at intervals from a position close to the effective area S to a position far away from the effective area S. A plurality of first supporting blocks cooperate together to support the auxiliary area 310 . It can be understood that if the first support structure 610 is a complete plate, it will not be easily bent and deformed due to excessive tension, and it will smoothly bypass the second rotor 160. By setting the first support structure 610 into a plurality of bar The first support block, so that the tension can be reduced while achieving the supporting effect. Specifically, the first support block is in the shape of a trapezoid whose cross-section gradually shrinks in a direction away from the flexible display screen 300 . In other embodiments, the cross section of the first support block may also be in other shapes, such as a semicircle.

As shown in FIG. 2 , in the embodiment of the present application, the flexible display screen 300 is in a folded state, and the cross-sectional shape of the bending area S3 is in the shape of a water drop. By making the bending area S3 in the shape of a water drop, a local cavity can be formed to meet the minimum bending radius requirement of the bending area S3 and prevent the bending transition of the bending area S3 from causing creases on the flexible display screen 300 and affecting the display effect. The flexible display screen 300 is in a state of being folded outward, and the cross-sectional shape of the bending area S3 is arc-shaped. In this way, the bending area S3 can realize a smooth transition between the first planar area S1 and the second planar area S2. The flexible display screen 300 is in a flattened state, and the bending area S3 is coplanar with the first plane area S1 and the second plane area S2, so that the effective area S is flattened to meet the requirement of large-screen display. In this way, during the state transition process of the flexible display screen 300, the first planar region S1, the bending region S3, and the second planar region S2 can all achieve a smooth transition without overfolding and creases.

As shown in FIG. 2 , FIG. 7 , and FIG. 8 , in the embodiment of the present application, the foldable electronic device 10 includes a slide rail support 620 , and the slide rail support 620 is installed on both the first planar area S1 and the second planar area S2 . For the slide rail support 620 in the first plane area S1, the slide rail support 620 is slidably connected with the shell assembly 100, and is connected to the shell assembly 100 in a direction perpendicular to the first plane area S1 (that is, the thickness direction of the flexible display screen 300). Resist and form a limit. As for the slide rail support 620 in the second plane area S2, the slide rail support 620 is slidably connected with the shell assembly 100, and abuts against the shell assembly 100 in a direction perpendicular to the second plane area S2 to form a stop. By setting the slide rail support 620, the flexible display screen 300 can be limited in the thickness direction of the flexible display screen 300, avoiding the flexible display screen 300 from moving in the thickness direction, enhancing the reliability of the surface structure, and preventing the flexible display screen 300 from being relative to the shell assembly. 100 off. In addition, through the sliding connection between the slide rail support member 620 and the shell assembly 100 , the moving direction of the flexible display screen 300 relative to the shell assembly 100 can be limited, and the flexible display screen 300 can be guided to move relative to the shell assembly 100 . It should be noted that, in other embodiments, only one of the first planar area S1 and the second planar area S2 may be provided with the slide rail support 620 . Specifically, the slide rail support 620 corresponding to the first planar area S1 is slidably connected to the first housing 110 , and the slide rail support 620 corresponding to the second planar area S2 is slidably connected to the second housing 130 .

Specifically, the slide rail support member 620 is in the shape of a flat plate, and is attached to the inner side of the flexible display screen 300 to keep fixed with the flexible display screen 300 . It can be understood that the slide rail support 620 roughly corresponds to the first plane area S1 and the second plane area S2, so that the first plane area S1 and the second plane area S2 remain flat during the movement of the flexible display screen 300 relative to the housing assembly 100 . Specifically, as shown in (a) of FIG. 8 , slide grooves 160 can be provided at positions corresponding to the slide rail support 620 on the first housing 110 and the second housing 130 to make the slide rail support 620 exceed the flexibility. The edge of the display screen 300 has a certain length, and the part of the slide rail support 620 beyond the edge of the flexible display screen 300 is accommodated in the chute 160, and the chute 160 constrains the slide rail support 620 in the thickness direction of the flexible display screen 300 and guides The flexible display screen 300 slides relative to the case assembly 100 along its length direction. Specifically, as shown in (b) in FIG. A chute 180 corresponding to the slider 621 is provided on the top. The slider 621 can be in an "L" shape, a "T" shape or a dovetail shape. The chute 180 constrains the slider 621 in the thickness direction of the flexible display 300 . In other implementation manners, magnetic attractors may also be provided on the shell assembly 100 and the slide rail support 620 , so that the slide rail support 620 is in close contact with the shell assembly 100 through magnetic action. In addition, as shown in FIG. 8 , installation grooves 190 can also be provided in the first housing 110 and the second housing 130, and the two edge regions of the flexible display 300 in the width direction can be accommodated in the installation grooves 190, thereby being covered. , so as to achieve the purpose of being beautiful and protecting the flexible display screen 300 .

As shown in FIG. 2 , FIG. 7 and FIG. 9 , in the embodiment of the present application, the foldable electronic device 10 includes a second support structure disposed in the bending area S3 , and the second support structure is used to support the bending area S3 . The supporting function of the second support structure ensures that when the flexible display screen 300 is in the flattened state, the bending area S3 can be coplanar with the first plane area S1 and the second plane area S2, so that the effective area S has a better display effect. In addition, the second support structure can increase the structural strength at the bending area S3, so as to avoid depressions when pressed in the flattened state, and provide a better touch experience. In addition, in the outwardly bent state, the second supporting structure can support the bending area S3, increase the bending radius of the bending area S3, and avoid over-folding of the bending area S3.

Specifically, the second support structure includes a plurality of second support blocks 630 in the form of strips, and the plurality of second support blocks 630 are arranged sequentially from the first planar area S1 to the second planar area S2. In the flat state and the outwardly folded state, any two adjacent second support blocks 630 cooperate with each other to support the bending area S3. It can be understood that if the second support structure is a complete plate, it will not easily be bent and deformed due to excessive tension. By setting the second support structure as a plurality of strip-shaped second support blocks 630, from the opposite The bending area S3 plays a supporting role, increases the bending radius of the bending area S3, and at the same time reduces the tension, so as to avoid excessive tension and make it difficult to be bent.

In some embodiments, any two adjacent second support blocks 630 are respectively provided with a first abutment portion 631 and a second abutment portion 632 , and in a flattened state, any two adjacent second support blocks 630 pass through the first abutting portion 632 . A resisting portion 631 is resisted by the second resisting portion 632 , and the plurality of second supporting blocks 630 can jointly form a supporting surface (not shown) parallel to the first planar area S1 and the second planar area S2 . It can be understood that in the flattened state, the bending area S3 is flattened to at least correspond to the support surface, and since the plurality of second support blocks 630 are against each other, the support surface can be kept stable to realize the alignment of the bending area S3. stable support. Specifically, both the first abutting portion 631 and the second abutting portion 632 are planes perpendicular to the supporting surface, so that in the flattened state, the first abutting portion 631 and the second abutting portion 632 are just face-to-face. Combined to form a stable resistance.

In some embodiments, any two adjacent second support blocks 630 are respectively provided with a first magnetic attraction 633 and a second magnetic attraction 634 , and the first magnetic attraction 633 and the second magnetic attraction 634 are magnetically attracted to each other. Through the magnetic attraction between the first magnetic attraction piece 633 and the second magnetic attraction piece 634 , the plurality of second support blocks 630 can be connected to each other to have higher support strength.

In some embodiments, any two adjacent second support blocks 630 are respectively provided with a third abutment portion 635 and a fourth abutment portion 636 , and in the outwardly folded state, any two adjacent second support blocks 630 pass through the third abutment portion 636 . The abutting portion 635 is abutted against the fourth abutting portion 636, and the plurality of second supporting blocks 630 jointly form an arcuate support surface (not shown) capable of supporting the bending area S3, under the support of the arcuate support surface , the bending area S3 is smoothly connected with the first planar area S1 and the second planar area S2. It can be understood that in the outwardly folded state, the plurality of second support blocks 630 abut against each other to form a stable support for the bending area S3, and at the same time avoid the gap between the bending area S3 and the first plane area S1 and the second plane area S2. Creases affect the display effect. Specifically, the third abutting portion 635 and the fourth abutting portion 636 are planes parallel to the radial direction of the arc-shaped supporting surface, so that in the outwardly folded state, the third abutting portion 635 and the fourth abutting portion 636 are face to face. Fit together to form a stable resistance. It should be noted that, in the flattened state, both the third abutting portion 635 and the fourth abutting portion 636 are sloped, and they are mirror images of a plane defined by the thickness direction and the width direction of the flexible display screen 300 .

In the embodiment of the present application, the foldable electronic device 10 further includes an elastic elastic support member 640, the elastic support member 640 is disposed between the second support structure and the bending area S3, and is used to support the bending area S3. It can be understood that the elastic support member 640 can increase the rigidity of the bending area S3, so that the bending area S3 has better flattening stiffness and outer bending arc bending stiffness. In addition, when the second support structure includes a plurality of bar-shaped second support blocks 630, the elastic support member 640 can isolate the flexible display screen 300 from the second support structure, avoiding excessive The relative position change between the two second support blocks 630 may cause damage to the flexible display screen 300 .

Furthermore, the elastic support member 640 is in the shape of a sheet, so that the elastic support member 640 can provide a better supporting effect and provide a better tactile feeling when touching the flexible display screen 300 . When the second support structure includes a plurality of strip-shaped second support blocks 630, the second support blocks 630 will form strip-shaped wear marks on the flexible display screen 300 during the repeated state transition of the flexible display screen 300, The possibility of wear marks on the flexible display screen 300 can also be reduced by providing the sheet-shaped elastic support member 640 . Specifically, the elastic support member 640 may be in the form of a shrapnel, a memory alloy, or the like.

In the embodiment of the present application, the flexible display screen 300 includes a protective layer 310 , a functional layer 320 and a buffer layer 330 which are sequentially stacked from outside to inside. Wherein, the protective layer 310 is a film layer that protects the functional layer 320 from the outside of the functional layer 320, the functional layer 320 is a film layer that has a display function in the flexible display screen 300, and the buffer layer 330 is a film layer that protects the functional layer 320 inside the functional layer 320. Layer 320 acts as a protective membrane layer.

Specifically, the protection layer 310 has a transparent structure and can allow light to pass through. It can be understood that the light emitted by the functional layer 320 needs to pass through the protective layer 310 and enter the user's eyes to form an image. The protective layer 310 needs to be selected from scratch-resistant and puncture-resistant materials, such as PET (Polyethylene terephthalate), UTG (Ultra Thin Glass) or PI (Polyimide).

Specifically, the functional layer 320 is a flexible panel that can be bent and deformed. In addition, the functional layer 320 is a stacked layer with display and touch functions, such as flexible OLED (Organic Light-Emitting Diode) or Micro LED.

Specifically, the elastic deformation capacity of the buffer layer 330 in a direction parallel to its plane is smaller than that in a direction perpendicular to its plane. It can be understood that the buffer layer 330 has a small elastic deformation capability and a high elastic modulus in a direction parallel to its plane, so it is not easy to deform, thereby avoiding expansion and contraction when the screen adjustment assembly 500 drives the flexible display screen 300 to move relative to the shell assembly 100 , that is, keep the dimensions of the flexible display 300 along its lengthwise and widthwise directions unchanged as much as possible. The buffer layer 330 has a strong elastic deformation capacity in the direction perpendicular to the plane where it is located, that is, it has a large deformation capacity and can play a buffering role, so that it can not only absorb the uneven structural features of the functional layer 320 inside, but also improve the performance of the functional layer 320. The degree of flatness, but also part of the stress can be released during the bending process of the bending area S3, and the deformation of the buffer layer 330 can absorb the change of the gap between two adjacent second support blocks 630 in different forms. influence, and improve the service life of the flexible display 300. Specifically, the buffer layer 330 can be buffer foam or TPU (Thermoplastic polyurethanes). It can be understood that in the flattened state, the first abutting portion 631 is abutted against the second abutting portion 632, while in the process of transitioning to the outwardly folded state, the two adjacent second support blocks 630 will be under the action of force. and a gap is formed on the side close to the flexible display 300 until the third abutting portion 635 and the fourth abutting portion 636 are abutted against each other. During this process, the deformation of the buffer layer 330 can absorb the corresponding The effect of the change of the gap between two adjacent second support blocks 630 on the functional layer 320 .

2 and 10, in the embodiment of the present application, the foldable electronic device 10 includes a transmission mechanism 700, the transmission mechanism 700 includes a cover 710, a first link assembly 720 and a second link assembly 730, the first The link assembly 720 connects the cover 710 and the first housing 110, the second link assembly 730 connects the cover 710 and the second housing 130, and the first link assembly 720 and the second link assembly 730 are respectively connected to the cover 710; when the flexible display 300 is in the flattened state, the first casing 110 and the second casing 130 are respectively located at the two ends of the cover 710; when the flexible display 300 is in the folded state, the first casing 110 Both the first housing 110 and the second housing 130 are located on one side of the inner side of the cover 710 , and when the flexible display 300 is in a folded state, the first housing 110 and the second housing 130 are located on one side of the outer side of the cover 710 .

It can be understood that the transmission mechanism 700 is connected between the first housing 110 and the second housing 130, and limits the trajectory of the relative movement of the first housing 110 and the second housing 130, so that the flexible display screen 300 can realize Steady state transitions.

It should be pointed out that the cover 710 corresponds to the bending area S3 , and is substantially flat and has an inner side 711 and an outer side 712 opposite to the inner side 711 . The inner side 711 is specifically the side of the cover 710 facing the bending area S3 , and the outer side 712 is the side of the cover 710 facing away from the bending area S3 . When the flexible display screen 300 is in the flattened state, the first housing 110 and the second housing 130 are located at both ends of the cover 710, and part of the gap between the first housing 110 and the second housing 130 is covered by the cover. 710 is filled, at which point the outer side 712 is exposed. When the flexible display screen 300 is folded inward, the first housing 110 and the second housing 130 are in a stacked state, and both are located on the side of the inner side 711 . At this time, the outer side 712 becomes the side of the foldable electronic device 10 . When the flexible display screen 300 is in the folded state, the first housing 110 and the second housing 130 are in a stacked state, and both are located on the side of the outer surface 712. At this time, the transmission mechanism 700 is completely covered by the flexible display screen 300. It cannot be exposed, and the bending area S3 becomes the side of the foldable electronic device 10 .

Specifically, the first housing 110 includes a first support body 111 and a first protection body 112 connected to the first support body 111 , the first planar area S1 is located on the first support body 111 , and inside the first housing 110 along the vertical In the direction of the first plane area S1, the first support body 111 and the first protection body 112 are respectively provided with a first connecting portion 113 and a second connecting portion 114 opposite to each other; the first connecting rod assembly 720 includes a first connecting rod 721 and The second connecting rod 722, the two ends of the first connecting rod 721 are rotatably connected with the first connecting part 113 and the cover 710 respectively, one end of the second connecting rod 722 is rotatably connected with the cover 710, and the other end is connected with the second connecting part 114 Slidingly connected in a direction parallel to the first planar area S1.

The second housing 130 includes a second support body 131 and a second protection body 132 connected to the second support body 131. The second planar area S2 is located on the second support body 131, and inside the second housing 130 is perpendicular to the second In the direction of the plane area S2, the second support body 131 and the second protection body 132 are respectively provided with a third connection portion 133 and a fourth connection portion 134 opposite to each other. The second connecting rod assembly 730 includes a third connecting rod 731 and a fourth connecting rod 732. Both ends of the third connecting rod 731 are rotatably connected to the third connecting portion 133 and the cover 710 respectively. The cover 710 is rotatably connected, and the other end is slidably connected to the fourth connecting portion 134 along a direction parallel to the second planar area S2.

Considering the connection between the second housing 130 and the transmission mechanism 700 and the connection between the first housing 110 and the transmission mechanism 700 are consistent, only the connection between the first housing 110 and the transmission mechanism 700 will be described in detail below.

As shown in FIG. 11 , it is a schematic diagram of the connection relationship between the transmission mechanism 700 and the first housing 110 . As shown in FIG. 10 and FIG. 11 , the rotational connection between the first connecting rod 721 and the cover 710 constitutes a rotating pair B, the rotating connection between the second connecting rod 722 and the blocking cover 710 constitutes a rotating pair A, and the first connecting rod 721 and the second connecting rod 721 form a rotating pair B. The rotational connection of a connecting part 113 constitutes a rotating pair C, and the sliding connection between the second connecting rod 722 and the second connecting part 114 constitutes a sliding pair D. A and B located at the blocking cover 710 are set as fixed ends, and then C and D are At the mobile end, the shapes of the first connecting rod 721 and the second connecting rod 722 are not limited, and it is only necessary that the first connecting rod 721 and the second connecting rod 721 and the second connecting rod be The rods 722 do not interfere with each other and have reliable strength, and the cover 710 does not interfere with the first connecting rod 721 and the second connecting rod 722 . It can be understood that the sliding pair D limits the rotation angle of the first casing 110 , so that the rotation angle of the first casing 110 relative to the cover 710 is the same as the rotation angle of the sliding pair D. The rotation pair C limits the distance between the first housing 110 and the cover 710 during rotation, that is, the distance between point C on the first housing 110 and point B on the cover 710 is constant. In this way, the movement trajectory of the first housing 110 relative to the cover 710 is limited. Similarly, the connection method between the third connecting rod 731 and the fourth connecting rod 732 and the second housing 130 can make the second housing 130 The movement trajectory of the relative blocking cover 710 is limited, so that the first casing 110 and the second casing 130 are relatively rotated along the predetermined trajectory.

Specifically, the first connecting rod 721 is rotatably connected to the first connecting part 113, and there must be a rotating shaft between the two; the third connecting rod 731 is rotatably connected to the third connecting part 133, and there must also be a rotating shaft between the two. As for the rotating shaft, the sensor can obtain the angle information between the first planar area S1 and the second planar area S2 by detecting the relative rotation angle information of the two rotating shafts.

1 and 10, it can be understood that for the first support body 111 and the first protection body 112, they are connected at the edge and spaced apart in the middle area, thereby jointly forming a hollow cavity, so that the first shell The interior of the body 110 can accommodate associated devices, such as screen adjustment components, circuit boards, and power supplies. For the second supporting body 131 and the second protecting body 132, they are connected at the edge and spaced apart in the middle area, so as to jointly form a hollow cavity, so that the interior of the second housing 130 can accommodate related devices, such as screen adjustment. components, circuit boards and power supplies etc. Specifically, in order to make the first housing 110 communicate with the inner cavity of the second housing 130 and then isolate it from the outside world, there are set Flexible seal 830 . The flexible seal 830 can also be deformed as the first housing 110 rotates relative to the cover 710 and the second housing 130 rotates relative to the cover 710 while performing a sealing function.

1 , 3 , and 10 , specifically, the first connecting rod 721 and the second connecting rod 722 are respectively connected to two spaced positions on the cover 710 , and both can rotate 180° relative to the cover 710 , the third connecting rod 731 and the fourth connecting rod 732 are respectively connected to two spaced positions on the cover 710, and both of them can rotate 180° relative to the cover 710, so that the setting can just meet the state transition requirements of the flexible display screen 300 .

The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

The above-mentioned embodiments only express several implementation modes of the present application, and the description thereof is relatively specific and detailed, but should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of protection of the patent application should be based on the appended claims.

Claims (23)

1. A foldable electronic device, characterized in that it comprises:

   shell components; and

   A flexible display screen is arranged on the shell assembly; the flexible display screen has an effective area for displaying, and the effective area includes a first plane area and a second plane area connected to the first plane area; then When the shell assembly is switched between the folded state and the unfolded state, the flexible display screen has an inwardly folded state, a flattened state, and an outwardly folded state, and in the inwardly folded state, the unfolded state, and the outwardly folded state, In this state, the included angles between the first planar area and the second planar area are 0°, 180° and 360° in sequence.
2. The foldable electronic device according to claim 1, wherein at least one of the first planar area and the second planar area can move relative to the shell assembly, and the flexible display screen is at least in the The flattened state and the outward folded state are tensioned.
3. The foldable electronic device according to claim 2, wherein the flexible display screen includes a bending area located between the first plane area and the second plane area, the first plane area, The second planar area and the bending area jointly constitute the effective area, and the area of the effective area changes with the change of the state of the flexible display screen.
4. The foldable electronic device according to claim 3, wherein the flexible display screen includes an auxiliary area connected to the active area, the foldable electronic device includes a screen adjustment component, and the screen adjustment component is connected to the active area. The auxiliary area is connected, and the screen adjustment component is used to drive at least one of the first plane area and the second plane area to move relative to the shell assembly.
5. The foldable electronic device according to claim 4, wherein the foldable electronic device comprises a circuit board and a sensor, both of which are built into the shell assembly, and the sensor is used to detect Angle information between the first plane area and the second plane area, the sensor and the screen adjustment component are both communicatively connected to the circuit board.
6. The foldable electronic device according to claim 4, wherein the auxiliary area is provided on opposite sides of the effective area, there are two screen adjustment components, and the two screen adjustment components are connected to the two screen adjustment components. The auxiliary areas are connected in one-to-one correspondence.
7. The foldable electronic device according to claim 4, wherein the screen adjustment assembly includes a driving member and a first rotor, at least part of the auxiliary area is wound around the first rotor, and the driving member and the first rotor are wound together. connected to the first rotor and used to drive the first rotor to rotate.
8. The foldable electronic device according to claim 4, wherein the shell component is formed with an opening, and the flexible display screen protrudes into the inside of the shell component through the opening, so that the active area is exposed to the Outside the shell component, the auxiliary area is accommodated inside the shell component.
9. The foldable electronic device according to claim 8, wherein the foldable electronic device further comprises a second rotor, the screen adjustment component and the second rotor are arranged inside the shell component, and the auxiliary The area is connected with the screen adjustment assembly and extends to the opening after wrapping around the outer circumference of the second rotor.
10. The foldable electronic device according to claim 9, wherein the foldable electronic device further comprises a first support structure, at least part of the auxiliary area is provided with the first support structure, and the first support structure It is used for supporting the auxiliary area, and abuts against the second rotor when the auxiliary area winds around the second rotor.
11. The foldable electronic device according to claim 10, wherein the first support structure comprises a plurality of strip-shaped first support blocks, and the plurality of first support blocks are from a position close to the active area They are arranged at intervals in sequence toward positions away from the effective area.
12. The foldable electronic device according to claim 3, wherein when the flexible display is in the inwardly folded state, the cross-sectional shape of the bending area is in the shape of a drop; when the flexible display is in the state In the outwardly folded state, the cross-sectional shape of the bending area is arc-shaped; when the flexible display is in the flattened state, the bending area and the first plane area and the second The planar regions are coplanar.
13. The foldable electronic device according to claim 3, wherein the foldable electronic device further comprises a slide rail support, the slide rail support is arranged on the first plane area, and is connected with the shell assembly Slidingly connected, and abutting against the shell component in a direction perpendicular to the first plane area to form a limit;

    Alternatively, the foldable electronic device further includes a slide rail support, the slide rail support is arranged on the second plane area, and is slidably connected with the shell assembly, and is perpendicular to the second plane area. The direction is opposed to the shell assembly to form a limit.
14. The foldable electronic device according to claim 3, wherein the foldable electronic device further comprises a slide rail support, the slide rail support is slidably connected with the housing, and the first planar area and The second plane area is provided with the slide rail support, wherein the slide rail support provided on the first plane area abuts against the shell assembly in a direction perpendicular to the first plane area Hold to form a position limit, and the slide rail support member disposed on the second plane area is opposed to the shell component in a direction perpendicular to the second plane area to form a position limit.
15. The foldable electronic device according to claim 3, wherein the foldable electronic device further comprises a second support structure arranged in the bending area, and the second support structure is used to support the bending district.
16. The foldable electronic device according to claim 15, wherein the second support structure comprises a plurality of bar-shaped second support blocks, and the plurality of second support blocks extend from the first plane area to The second planar areas are arranged in sequence, and when the flexible display is in the flattened state and the outwardly folded state, any two adjacent second support blocks cooperate with each other to support the bending area .
17. The foldable electronic device according to claim 16, further comprising at least one of the following technical solutions:

    Any two adjacent second support blocks are respectively provided with a first magnetic attraction and a second magnetic attraction, and the first magnetic attraction and the second magnetic attraction are magnetically attracted;

    Alternatively, any two adjacent second support blocks are respectively provided with a first abutment portion and a second abutment portion, and in the flattened state, any two adjacent second support blocks pass through the first abutting portion. A resisting portion is resisted against the second resisting portion, and a plurality of the second supporting blocks can jointly form a supporting surface parallel to the first planar area and the second planar area;

    Alternatively, any adjacent two of the second support blocks are respectively provided with a third abutment portion and a fourth abutment portion, and in the outwardly folded state, any adjacent two of the second support blocks pass through the first The three abutting portions are abutted against the fourth abutting portion, and a plurality of the second support blocks jointly form an arc-shaped support surface capable of supporting the bending area, and the bending area is supported on the arc-shaped support. Under the support of the surface, it is smoothly connected with the first planar area and the second planar area.
18. The foldable electronic device according to claim 16, characterized in that, the foldable electronic device further comprises an elastic elastic support member, the elastic support member is arranged between the second support structure and the bending area between and for supporting the bending zone.
19. The foldable electronic device according to claim 18, wherein the elastic supporting member is in the shape of a sheet.
20. The foldable electronic device according to claim 1, wherein the shell assembly comprises a first shell and a second shell, the first plane area is located on the first shell, and the second plane The area is located in the second casing; the foldable electronic device includes a transmission mechanism, and the transmission mechanism includes a cover, a first link assembly and a second link assembly, and the first link assembly is connected to the cover cover and the first housing, the second link assembly connects the cover and the second housing, and the first link assembly and the second link assembly are respectively connected to the cover both ends of the cover; when the flexible display is in a flattened state, the first casing and the second casing are respectively located at both ends of the cover; when the flexible display is in a folded state, Both the first housing and the second housing are located on one side of the inner surface of the cover, and when the flexible display screen is in the outwardly folded state, the first housing and the second housing are both Located on one side of the outer side of the cover.
21. The foldable electronic device according to claim 20, wherein the first housing includes a first support body and a first protection body connected to the first support body, and the first plane area is located at the The first supporting body, along the direction perpendicular to the first plane area inside the first casing, the first supporting body and the first protecting body are respectively provided with a first connecting part and a second Two connecting parts; the first connecting rod assembly includes a first connecting rod and a second connecting rod, and the two ends of the first connecting rod are respectively rotatably connected to the first connecting part and the cover; the second connecting rod One end of the two connecting rods is rotatably connected to the cover, and the other end is slidably connected to the second connecting portion along a direction parallel to the first planar area; and/or,

    The second housing includes a second support body and a second protection body connected to the second support body, the second planar area is located on the second support body, and is vertically inside the second housing body. In the direction of the second planar area, the second supporting body and the second protective body are respectively provided with a third connecting portion and a fourth connecting portion; the second connecting rod assembly includes a third connecting rod and the fourth connecting rod, the two ends of the third connecting rod are respectively connected to the third connecting part and the cover in rotation; one end of the fourth connecting rod is connected to the cover in rotation, and the other end is connected to the cover in rotation. The fourth connecting portion is slidably connected along a direction parallel to the second planar area.
22. The foldable electronic device according to claim 21, wherein when the first link assembly includes a first link and a second link, the first link and the second link are respectively connected to two spaced positions on the cover, and can rotate 180° relative to the cover; when the second link assembly includes a third link and a fourth link, the third The connecting rod and the fourth connecting rod are respectively connected to two spaced positions on the cover, and both can rotate 180° relative to the cover.
23. The foldable electronic device according to any one of claims 1 to 22, wherein the flexible display screen includes a protective layer, a functional layer and a buffer layer that are sequentially stacked from the outside to the inside; the foldable electronic device also Including at least one of the following technical solutions:

    The protective layer has a transparent structure and can allow light to pass through;

    Alternatively, the functional layer is a flexible panel that can be bent and deformed;

    Alternatively, the elastic deformation capacity of the buffer layer in a direction parallel to its plane is smaller than the elastic deformation capacity in a direction perpendicular to its plane.

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