Electronic device

Abstract

An embodiment of the present application provides an electronic device, including a first housing, a second housing, a first driving device, a flexible screen assembly, and a second driving device, wherein the first housing is movably connected to the second housing; the first driving device is configured to drive the first housing and the second housing to move relative to each other to achieve the engagement and separation of the first housing and the second housing; one end of the flexible screen assembly is connected to the first housing; the second driving device is connected to the other end of the flexible screen assembly, and the second driving device is configured to drive the flexible screen assembly to move following the relative movement of the first housing and the second housing, so as to retract a part of the flexible screen assembly into the first housing or the second housing, or to deploy a part of the flexible screen assembly outside the first housing or the second housing. The embodiment of the present application can increase the display area of the electronic device without additionally increasing the installation space for the flexible screen assembly.

Description

[0001] This application is a divisional application of the application titled "Electronic Device" with the application number 201911348628.X filed with the Chinese Patent Office on December 24, 2019, the entire content of which is incorporated herein by reference. Technical Field

[0002] This application relates to the field of electronic technology, and particularly to an electronic device. Background Art

[0003] Generally, electronic devices such as smart phones are provided with display screens. The electronic device displays images through the display screen for users to use. However, in related technologies, the space for installing the display screen in the electronic device is limited, thus limiting the display area of the display screen. Summary of the Invention

[0004] Embodiments of this application provide an electronic device that can increase the display area of the electronic device without additionally increasing the installation space for the flexible screen assembly.

[0005] Embodiments of this application provide an electronic device, including:

[0006] A first housing;

[0007] A second housing movably connected to the first housing;

[0008] A first driving device for driving the relative movement of the first housing and the second housing to achieve the engagement and separation of the first housing and the second housing;

[0009] A flexible screen assembly, one end of which is connected to the first housing; and

[0010] A second driving device connected to the other end of the flexible screen assembly, the second driving device being configured to drive the flexible screen assembly to move following the relative movement of the first housing and the second housing, so as to retract a part of the flexible screen assembly into the first housing or the second housing, or to deploy a part of the flexible screen assembly outside the first housing or the second housing;

[0011] A tension detector for detecting the tension value of the flexible screen assembly; and

[0012] A processor, connected to the tension detector, the first driving device, and the second driving device, is configured to control the first driving device to drive the first housing and the second housing to move relative to each other and control the second driving device to drive the flexible screen assembly to move following the relative movement of the first housing and the second housing according to the tension value of the flexible screen assembly detected by the tension detector, so as to prevent the flexible screen assembly from being wrinkled and uneven.

[0013] In the embodiment of the present application, by providing two driving devices to respectively control the movement states of the first housing, the second housing, and the flexible screen assembly, the display area of the flexible screen assembly can be selected. Compared with the display screen with a fixed installation space in the related art, the embodiment of the present application can increase the display area of the electronic device without additionally increasing the installation space of the flexible screen assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 FIG. 9 is a schematic structural diagram of a first type of electronic device provided by an embodiment of the present application.

[0015] Figure 2 is Figure 1 a schematic structural diagram of the first housing in the electronic device shown in FIG.

[0016] Figure 3 is Figure 1 a schematic structural diagram of the second housing in the electronic device shown in FIG.

[0017] Figure 4 FIG. 25 is a schematic structural diagram of a second type of electronic device provided by an embodiment of the present application.

[0018] Figure 5 FIG. 29 is a schematic structural diagram of a third type of electronic device provided by an embodiment of the present application.

[0019] Figure 6 is Figure 5 a schematic structural diagram of the first driving device in the electronic device shown in FIG.

[0020] Figure 7 is Figure 6 a schematic structural diagram of the connecting member in the first driving device shown in FIG.

[0021] Figure 8 FIG. 45 is a schematic structural diagram of a fourth type of electronic device provided by an embodiment of the present application.

[0022] Figure 9 is Figure 8 a schematic structural diagram of the first driving device in the electronic device shown in FIG.

[0023] Figure 10 FIG. 55 is a schematic structural diagram of a fifth type of electronic device provided by an embodiment of the present application.

[0024] Figure 11 This is the sixth structural schematic diagram of the electronic device provided by the embodiment of the present application.

[0025] Figure 12 This is the seventh structural schematic diagram of the electronic device provided by the embodiment of the present application.

[0026] Figure 13 is Figure 12 the structural schematic diagram of the first driving device in the electronic device shown.

[0027] Figure 14 is Figure 12 the structural schematic diagram of the pushing component in the first driving device shown. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0029] Please refer to Figure 1 , Figure 1 This is the first structural schematic diagram of the electronic device provided by the embodiment of the present application. Electronic devices such as Figure 1 the electronic device 20 may be a computing device such as a laptop computer, a computer monitor including an embedded computer, a tablet computer, a cellular phone, a media player, or other handheld or portable electronic devices, smaller devices (such as a wristwatch device, a pendant device, a headset or earpiece device, a device embedded in glasses or other devices worn on the user's head, or other wearable or micro devices), a television, a computer monitor without an embedded computer, a gaming device, a navigation device, an embedded system (such as a system in which an electronic device with a display is installed in a kiosk or a vehicle), a device that implements the functions of two or more of these devices, or other electronic devices. In Figure 1 the exemplary configuration, the electronic device 20 is a portable device, such as a cellular phone, a media player, a tablet computer, or other portable computing devices. Other configurations may be used for the electronic device 20 if needed. Figure 1 The examples in

[0030] For example, Figure 1As shown, the electronic device 20 may include a first housing such as the first housing 100 and a second housing such as the second housing 200. The first housing 100 and the second housing 200 may be movably connected such that the distance between the first housing 100 and the second housing 200 is adjustable. The first housing 100 and the second housing 200 may be formed of plastic, glass, ceramic, fiber composite material, metal (e.g., stainless steel, aluminum, etc.), other suitable materials, or a combination of any two or more of these materials. The first housing 100 and the second housing 200 may be formed using an integrated configuration in which some or all of the first housing 100 and the second housing 200 are processed or molded into a single structure, or may be formed using multiple structures (e.g., an inner frame structure, one or more structures forming an outer housing surface, etc.). Among them, the structures and manufacturing materials of the first housing 100 and the second housing 200 may be the same or different.

[0031] Please refer to Figure 2 , Figure 2 is Figure 1 a schematic structural diagram of the first housing in the electronic device shown. The first housing 100 may include a carrier plate such as the carrier plate 110, a first side 120, and a first rear cover such as the first rear cover 130. Among them, the first side 120 is provided at the periphery of the carrier plate 110. The carrier plate 110 may be used to carry the internal components of the electronic device 20, such as a flexible screen assembly, a driving device, a circuit board, etc. The first side 120 may be used to form the frame of the electronic device 20 to protect the internal components of the electronic device 20. The carrier plate 110, the first side 120, and the first rear cover 130 are connected to form a receiving cavity 140 with an opening structure to receive components of the electronic device 20 such as a battery, a driving device, etc. The opening structure may provide a passage for the second housing 200 to enter and exit the receiving cavity 140. The second housing 200 may move out of the receiving cavity 140 through the opening structure, and the second housing 200 may also move into the receiving cavity 140 through the opening structure, so that the second housing 200 can be received in the receiving cavity 140.

[0032] The carrier plate 110 includes a main body portion such as the main body portion 112 and a plurality of side portions. The plurality of side portions are located at the edge positions of the main body portion 112. Among them, the main body portion 112 may be a regular shape, such as a rectangular structure. The carrier plate 110 may include a first side portion 114 and a second side portion 116, and the first side portion 114 and the second side portion 116 are disposed opposite to each other.

[0033] One end of the first side edge 120 is connected to the first side portion 114, and the other end of the first side edge 120 is connected to the second side portion 116. The first side edge 120 is disposed between the first side portion 114 and the second side portion 116, and both ends of the first side edge 120 are bent along the first side portion 114 and the second side portion 116 respectively. For example, the first side edge 120 has opposite first and second ends. The first end is bent along a direction parallel to the first side portion 114 and covers and is disposed on the outer surface of the first side portion 114, and the second end is bent along a direction parallel to the second side portion 116 and covers and is disposed on the outer surface of the second side portion 116. It should be noted that both ends of the first side edge 120 may also be flush with the outer surfaces of the first side portion 114 and the second side portion 116.

[0034] The first rear cover 130 is sleeved outside the carrier plate 110 to shield the internal components disposed on the carrier plate 110, so that the components disposed inside the electronic device 20 cannot be observed from the outside of the electronic device 20 by the user. It can be understood that a part of the flexible screen assembly such as the flexible screen assembly 300 and the first rear cover 130 are respectively disposed on two opposite surfaces of the carrier plate 110, and a part of the flexible screen assembly 300 can be disposed on the display surface of the carrier plate 110 to display a picture.

[0035] The flexible screen assembly 300 may include a flexible display module and a flexible support member. The flexible support member is located on the non-display surface side of the flexible display module and is used to support the flexible display module. It can be understood that the flexible support member has a relatively high structural strength. On the one hand, it can support the flexible display module and improve the flatness of the flexible display module, so that the flexible display module is not prone to collapse or wrinkle during the display process. On the other hand, the flexible support member can also improve the overall strength of the flexible screen assembly 300 and can protect the flexible screen assembly 300 from being easily damaged during the stretching process. Among them, the flexible display module may be an OLED (Organic Light Emitting Diode) module. The OLED module may include a display substrate and a packaging material. An organic light-emitting substance is encapsulated between the display substrate and the packaging material. The OLED module includes a number of OLED units, and each OLED unit is electrically connected to the main board of the electronic device to achieve self-luminescence and display a picture. The flexible display module may also be an LCD (Liquid Crystal Display) module. The LCD module may include a display substrate and a packaging material. A liquid crystal material is encapsulated between the display substrate and the packaging material. The main board of the electronic device provides a voltage for the liquid crystal material, thereby changing the arrangement direction of the liquid crystal molecules. After the light projected by the backlight source acts together inside the LCD module, an image is formed in the display area to display a picture.

[0036] The first rear cover 130 may include opposite first and second bending portions 132 and 134. The first bending portion 132 is located on the outer surface of the first side portion 114, and the outer surface of the first bending portion 132 is flush with one end face of the first side edge 120. The second bending portion 134 is located on the outer surface of the second side portion 116, and the outer surface of the second bending portion 134 is flush with the other end face of the first side edge 120, so that the gap between the first rear cover 130 and the first side edge 120 is not visible from the outside, which can not only achieve the effects of waterproofing and dustproofing, but also maintain the consistency of the appearance.

[0037] As Figure 3 shown, Figure 3 is Figure 1 a schematic structural view of a second housing in the electronic device shown. The second housing 200 may include a second side edge such as the second side edge 210, a third side edge such as the third side edge 220, and a fourth side edge such as the fourth side edge 230. The second side edge 210 is disposed opposite to the first side edge 120, and the second side edge 210 is disposed between the third side edge 220 and the fourth side edge 230. Both ends of the second side edge 210 are bent along the third side edge 220 and the fourth side edge 230 respectively. For example, the second side edge 210 has opposite third and fourth end portions such as the third end portion 212 and the fourth end portion 214. The third end portion 212 is bent along a direction parallel to the third side edge 220 and is disposed to cover the outer surface of the third side edge 220, and the fourth end portion 214 is bent along a direction parallel to the fourth side edge 230 and is disposed to cover the outer surface of the fourth side edge 230. It should be noted that the end faces of both ends of the second side edge 210 may also be flush with the outer surfaces of the third side edge 220 and the fourth side edge 230.

[0038] When the second housing 200 is received in the receiving cavity 140, the third end portion 212 of the second side edge 210 abuts against the first bending portion 132 of the first rear cover 130, and the fourth end portion 214 of the second side edge 210 abuts against the second bending portion 134 of the first rear cover 130, so that the first side edge 120, the second side edge 210, the third side edge 220, and the fourth side edge 230 form a complete frame structure to protect the components inside the electronic device 20 from being damaged. In some embodiments, the outer surface of the second side edge 210 is flush with the outer surface of the first end portion 242, and the outer surface of the third side edge 220 is flush with the outer surface of the second end portion 244, so that the gaps between the first side edge 120 and the second side edge 210 and the third side edge 220 are not visible from the outside of the electronic device 20, maintaining the consistency of the appearance of the electronic device 20.

[0039] The third side 220 and the fourth side 230 are oppositely arranged. The third side 220 is movably connected to the first side portion 114, such that the third side 220 can move along a direction parallel to the first side portion 114; the fourth side 230 is movably connected to the second side portion 116, such that the fourth side 230 can move along a direction parallel to the second side portion 116, thereby enabling the second housing 200 to move outside the receiving cavity 140 or move inside the receiving cavity 140.

[0040] The second housing 200 further includes rollers such as roller 250. The roller 250 is disposed between the third side 220 and the fourth side 230. The flexible screen assembly 300 is wound around the roller 250 and is movably connected to the roller, such that the roller 250 can rotate following the movement of the flexible screen assembly 300. The roller 250 includes a rotating shaft such as a roller shaft 252 and one or more drums such as a first drum 254 and a second drum 256. Wherein, one end of the roller shaft 252 is connected to the third side 220, the other end of the roller shaft 252 is connected to the fourth side 230. The first drum 254 and the second drum 256 are spaced apart so that a part of the roller shaft 252 is exposed. The first drum 254 and the second drum 256 are rotatably connected to the roller shaft 252 (such as by ball bearings), such that the first drum 254 and the second drum 256 can rotate around the roller shaft 252.

[0041] Combined Figure 4 and Figure 5 as shown Figure 4 is the second schematic structural diagram of the electronic device provided by the embodiment of the present application. Figure 5 is the third schematic structural diagram of the electronic device provided by the embodiment of the present application. Another part of the flexible screen assembly 300 can be wound around the first drum 254 and the second drum 256 and slide along the outer surfaces of the first drum 254 and the second drum 256, which can reduce the friction between the flexible screen assembly 300 and the first drum 254 and the second drum 256, making the movement of the flexible screen assembly 300 smoother. Moreover, during the sliding process, the flexible screen assembly 300 can also drive the first drum 254 and the second drum 256 to rotate, and when the first drum 254 and the second drum 256 rotate, they can drive the second housing 200 to move, further increasing the speed of the second housing 200 moving away from or approaching the first housing 100.

[0042] It should be noted that one or more drums may not be provided outside the roller shaft 252. For example, the flexible screen assembly 300 can be directly wound around the outer surface of the roller shaft 252, such that the flexible screen assembly 300 can slide along the outer surface of the roller shaft 252.

[0043] As Figure 5As shown, the electronic device 20 may further include a first driving device such as the first driving device 400. The first driving device 400 may be disposed on the first housing 100. For example, the first driving device 400 may be disposed on the carrier plate 110, or the first driving device 400 may also be disposed on the second housing 200. For example, the first driving device 400 may be disposed on the second side 210, the third side 220, and / or the fourth side 230 of the second housing 200. Alternatively, the second housing 200 may be provided with a substrate, and the first driving device 400 may be disposed on the substrate.

[0044] The first driving device 400 is used to drive the relative movement of the first housing 100 and the second housing 200 to achieve the engagement and separation of the first housing 100 and the second housing 200. For example, the first housing 100 may be fixed, and the first driving device 400 may drive the second housing 200 to move away from the first housing 100, so that the second housing 200 extends out of the receiving cavity 140 to achieve the separation between the first housing 100 and the second housing 200. The first driving device 400 may also drive the second housing 200 to move towards the first housing 100, so that the second housing 200 enters the receiving cavity 140 and is accommodated in the receiving cavity 140 to achieve the engagement between the first housing 100 and the second housing 200. It can be understood that the first housing 100 and the second housing 200 may reciprocate in a direction parallel to the first housing 100 or, in other words, parallel to the second housing 200, thereby achieving the separation and engagement between the first housing 100 and the second housing 200.

[0045] In the above embodiment, alternatively, it may also be that the second housing 200 is fixed, and the first driving device 400 drives the first housing 100 to reciprocate in a direction parallel to the second housing 200. Or the first driving device 400 may also drive the first housing 100 and the second housing 200 to move simultaneously to achieve the engagement and separation of the first housing 100 and the second housing 200.

[0046] Combined Figure 4 and Figure 5 As shown, the first driving device 400 may include a first motor such as the first motor 420 and a pushing mechanism such as the pushing mechanism 440. The pushing mechanism 440 is connected to the first motor 420. The first motor 420 is used to drive the pushing mechanism 440 to push the second housing 200 to reciprocate in a direction parallel to the first housing 100, so that the second housing 200 extends out of or enters the receiving cavity 140, achieving the separation or engagement between the second housing 200 and the first housing 100.

[0047] Among them, the driving mechanism 440 may include a transmission component such as the transmission component 442 and a push rod such as the pushing component 444. The transmission component 442 is connected to the first motor 420. One end of the pushing component 444 is connected to the transmission component 442, and the other end of the pushing component 444 is connected to the second housing 200. The first motor 420 is configured to drive the transmission component 442 to move, so that the connected pushing component 444 follows the transmission component 442 to move, and further causes the pushing component 444 to move in a direction parallel to the first housing 100. The transmission component 442 may be one or a combination of a lead screw transmission component, a gear set, or a telescopic component. The telescopic component may include an electric push rod, an electro-hydraulic push rod, a pneumatic push rod, or a hydraulic push rod, etc.

[0048] The pushing component 444 may include a first base such as the first base 4441 and a push rod such as the push rod 4442. Among them, the first base 4441 is fixed on the carrier plate 110. A chute is provided on the first base 4441. The push rod 4442 is arranged in the chute and is slidably connected to the chute so that the push rod 4442 can slide in the chute. One end of the push rod 4442 is connected to the transmission component 442, and the other end of the push rod 4442 is connected to the second housing 200. For example, the push rod 4442 may be connected to the roller 252.

[0049] When the electronic device 20 needs to control the relative movement of the first housing 100 and the second housing 200, it can control the first motor 420 to drive the transmission component 442 to move. When the transmission component 442 moves, it drives the push rod 4442 to slide in the chute in a direction parallel to the first housing 100, and further drives the second housing 200 to move in a direction parallel to the first housing 100, so as to realize the fitting and separation of the first housing 100 and the second housing 200.

[0050] For example, the electronic device 20 can control the output shaft of the first motor 420 to rotate forward (or backward), so that the transmission assembly 442 connected to the output shaft of the first motor 420 moves along with the output shaft of the first motor 420. During the movement of the transmission assembly 442, the push rod 4442 will be driven to move away from the first housing 100. The second housing 200 connected to the push rod 4442 will move along with the movement of the push rod 4442, so that the second housing 200 also moves away from the first housing 100, and further enables the second housing 200 to extend out of the storage cavity 140, realizing the separation of the second housing 200 from the first housing 100. Another example: The electronic device 20 can control the output shaft of the first motor 420 to rotate backward (or forward), so that the transmission assembly 442 connected to the output shaft of the first motor 420 moves along with the output shaft of the first motor 420. During the movement of the transmission assembly 442, the push rod 4442 will be driven to move towards the first housing 100. The second housing 200 connected to the push rod 4442 will move along with the movement of the push rod 4442, so that the second housing 200 also moves towards the first housing 100, and further enables the second housing 200 to contract from the outside of the storage cavity 140 into the storage cavity 140, realizing the fitting of the second housing 200 with the first housing 100.

[0051] An elastic member such as the elastic member 4443 is further provided on the outer surface of the push rod 4442. The elastic member 4443 can be a spring or other elastic components. The elastic member 4443 can be used to support and protect the push rod 4442. For example, when the electronic device 20 drops, the elastic member 4443 can play a buffering role, reducing the instantaneous impact force received by the push rod 4442, and further reducing the impact force on the transmission assembly 442 connected to the push rod 4442, protecting the transmission assembly 442 from damage.

[0052] As Figure 6 shown, Figure 6 For Figure 5Schematic structural diagram of the first driving device in the electronic device shown. The transmission assembly 442 may include a second base 4421, a transmission lead screw 4422, and a connecting member 4423. Among them, the second base 4421 is fixed on the first housing 100. For example, the second base 4421 may be fixed on the carrier plate 110. The transmission lead screw 4422 is rotatably connected to the second base 4421. For example, the transmission lead screw 4422 may be connected by a bearing embedded in the second base 4421, so as to realize the rotation of the transmission lead screw 4422 relative to the second base 4421. The transmission lead screw 4422 is also connected to the first motor 420, and the first motor 420 is used to drive the transmission lead screw 4422 to rotate relative to the second base 4421. The connecting member 4423 is sleeved on the transmission lead screw 4422 and the connecting member 4423 is in transmission connection with the transmission lead screw 4422. The connecting member 4423 is also connected to the push rod 4442. Driven by the transmission lead screw 4422, the connecting member 4423 reciprocates in a direction perpendicular to the axial direction of the transmission lead screw 4422, thereby driving the push rod 4442 to reciprocate parallel to the first housing 100. When the push rod 4442 reciprocates, the second housing 200 follows the push rod 4442 to reciprocate.

[0053] Combined Figure 7 as shown Figure 7 is Figure 6 Schematic structural diagram of the connecting member in the first driving device shown. The transmission assembly 442 may further include a guide rod such as the guide rod 4424. The guide rod 4424 is arranged on the second base 4421. For example, both ends of the guide rod 4424 may be directly inserted and fixed in the connection holes of the second base 4421. Among them, the guide rod 4424 is arranged in parallel with the transmission lead screw 4422. The connecting member 4423 may be sleeved on both the transmission lead screw 4422 and the guide rod 4424 at the same time. The guide rod 4424 can play a role in guiding and positioning the connecting member 4423. For example, the connecting member 4423 may be provided with a first through hole 4423a, a second through hole 4423b, and a third through hole 4423c. The connecting member 4423 is sleeved on the transmission lead screw 4422 through the first through hole 4423a, sleeved on the push rod 4442 through the second through hole 4423b, and sleeved on the guide rod 4424 through the third through hole 4423c and is in sliding contact with the guide rod. A transmission thread is provided on the inner wall of the first through hole 4423a, and the transmission thread meshes with the thread teeth of the transmission lead screw 4422, so that when the transmission lead screw 4422 rotates, the connecting member 4423 is driven to move linearly along a direction parallel to the first housing 100 through the first through hole 4423a. It can be understood that the rotation of the transmission lead screw 4422 can be converted into the linear motion of the connecting member 4423.

[0054] As Figure 8 and Figure 9 shown Figure 8The fourth schematic structural diagram of the electronic device provided by the embodiment of the present application Figure 9 is Figure 8 The schematic structural diagram of the first driving device in the shown electronic device. The transmission component 442 can also be a gear group transmission. For example, the transmission component 442 includes gears such as gear 446. The gear 446 is arranged on the output shaft of the first motor 420, and the first motor 420 can drive the gear 446 to rotate. The push rod 4442 is in transmission connection with the gear 446. For example, a plurality of ratchets can be arranged on the outer surface of the push rod 4442, and the push rod 4442 meshes with the gear 446 through the ratchets, so that when the gear 446 rotates, it can drive the push rod 4442 to reciprocate along the direction parallel to the first housing 100. It should be noted that the transmission component 442 can also include a plurality of gears, and the reciprocating movement of the push rod 4442 is driven by the mutual transmission of the plurality of gears.

[0055] Combined with Figure 4 、 Figure 6 and Figure 10 shown, Figure 10 The fifth schematic structural diagram of the electronic device provided by the embodiment of the present application. The electronic device 20 can also include a second driving device such as the second driving device 500. The second driving device 500 is connected to the flexible screen assembly 300, and the second driving device 500 can be used to drive the flexible screen assembly 300 to move following the relative movement of the first housing 100 and the second housing 200, and recover a part of the flexible screen assembly 300 into the first housing 100 or unfold a part of the flexible screen assembly 300 outside the first housing 100 to increase the display area of the electronic device 20.

[0056] For example, the flexible screen assembly 300 can include a first display part 320 and a second display part 340. The first display part 320 refers to a part of the flexible screen assembly 300 located on the first housing 100, and the second display part 340 refers to another part of the flexible screen assembly 300 located on the second housing 200. In the initial state, the first display part 320 is exposed outside the first housing 100 (or outside the electronic device 20), and the second display part 340 is received in the receiving cavity 140, such as Figure 1 shown. When the first driving device 400 drives the second housing 200 to move away from the first housing 100, the second driving device 500 can drive the flexible screen assembly 300 to move following the second housing 200 after a preset interval time, so that the second display part 340 originally received inside the receiving cavity 140 slowly slides along the roller 250 and is gradually unfolded outside the first housing 100 (or outside the electronic device 20) such as Figure 4 or Figure 5As shown, the first display unit 320 and the second display unit 340 are both unfolded outside the electronic device 20. The first display unit 320 and the second display unit 340 can display a single screen together or display two different screens separately. Compared with only using the first display unit 320 for display in the initial state, unfolding the second display unit 340 outside the receiving cavity 140 can increase the display area of the electronic device 20.

[0057] In the embodiment of the present application, two driving devices are provided to respectively control the movement states of the first housing 100, the second housing 200, and the flexible screen assembly 300, so that the display area of the flexible screen assembly 300 can be selected. Compared with the display screen with a fixed installation space in the related art, in the embodiment of the present application, the display area of the electronic device 20 can be increased without additionally increasing the installation space of the flexible screen assembly 300 (or the display screen).

[0058] Please continue to refer to Figure 6 and Figure 10 , the second driving device 500 includes a second motor such as the second motor 520 and a connecting belt such as the connecting belt 540. The second motor 520 is used to drive the connecting belt 540 to curl or stretch, so that another part of the flexible screen assembly 300 is received in the receiving cavity 140 or unfolded outside the first housing 100. For example, one end of the connecting belt 540 is wound around the output shaft of the second motor 520, the other end of the connecting belt 540 is connected to one end of the flexible screen assembly 300, and the other end of the flexible screen assembly 300 is connected to the first housing 100.

[0059] When the electronic device 20 needs to control the flexible screen assembly 300 to unfold outside the first housing 100, the electronic device 20 can control the second motor 520 to drive the connecting belt 540 to gradually change from the curled state to the stretched state, so that the second display unit 340 can slide along the outer surfaces of the first roller 254 and the second roller 256 in a direction away from the second motor 520, so as to gradually unfold the second display unit 340 originally received in the receiving cavity 140 outside the electronic device 20 (or the first housing 100), and display a screen together with the first display unit 320 originally exposed outside the electronic device 20.

[0060] When the electronic device 20 needs to control the flexible screen assembly 300 to be received in the first housing 100, the electronic device 20 can control the second motor 520 to drive the connecting belt 540 to gradually change from the stretched state to the curled state, so that the flexible screen assembly 300 can slide along the outer surfaces of the first roller 254 and the second roller 256 in a direction close to the second motor 520, so as to gradually recover the second display unit 340 originally unfolded outside the electronic device 20 (or the first housing 100) into the receiving cavity 140 (or inside the first housing 100).

[0061] Among them, the size of the second display unit 340 is less than or equal to the size of the first housing 100, so that when the second display unit 340 is received in the receiving cavity 140, it can be fully unfolded without curling. Compared with the display screen that needs to be curled in the related art, the embodiment of the present application can avoid being easily damaged due to frequent curling of the flexible screen assembly, and can extend the service life of the flexible screen assembly.

[0062] When the first driving device 400 drives the first housing 100 and the second housing 200 to move relative to each other, if the second driving device 500 moves simultaneously with the first driving device 400, the flexible screen assembly 300 will be slack, which may lead to wrinkles or unevenness of the flexible screen assembly 300, and further affect the screen display effect of the electronic device 20.

[0063] As Figure 11 shown, Figure 11 This is the sixth structural schematic diagram of the electronic device provided by the embodiment of the present application. In order to keep the flexible screen assembly 300 always in a taut state and ensure the tension of the flexible screen assembly 300, a processor such as the processor 600 of the electronic device 20 in the embodiment of the present application is electrically connected to the first driving device 400 and the second driving device 500. The processor 600 can be used to drive the first driving device 400 to drive the first housing 100 and the second housing 200 to move relative to each other and the second driving device 500 to drive the flexible screen assembly 300 to move following the relative movement of the first housing 100 and the second housing 200 at different times, so that the first driving device 400 and the second driving device are driven step by step at different times. It can be understood that there is a time difference between the driving times of the first driving device 400 and the second driving device 500, and this time difference is very short, mainly used to ensure that both ends of the flexible screen assembly 300 are always in a stressed and taut state, ensure the tension of the flexible screen assembly 300, and ensure that there are no wrinkles and unevenness and other bad phenomena, so that the screen display effect of the electronic device 20 is not affected by the movement of the flexible screen assembly 300.

[0064] For example, when the second display unit 340 needs to be unfolded, the processor 600 can control the first driving device 400 at the first moment T1 to drive the second housing 200 to move away from the first housing 100, so that the second housing 200 slowly extends out of the storage cavity 140 to achieve the separation of the first housing 100 and the second housing 200. When the second housing 200 moves to the second moment T2, the processor 600 controls the second motor 520 to slowly unwind the connecting belt 540, so that the second display unit 340 of the flexible screen assembly 300 can slide along the outer surfaces of the first roller 254 and the second roller 256 to the outside of the storage cavity 140. Among them, the first moment T1 is earlier than the second moment T2. For example, T2 = T1 + t1, where t1 is the first preset interval time, and the first preset interval time can be set according to the actual situation, and the embodiments of the present application do not limit it. It can be understood that when the second display unit 340 is unfolded, the second housing 200 moves earlier than the flexible screen assembly 300, so that the flexible screen assembly 300 is always in a taut state during the process of gradually unfolding the second display unit 340 outside the first housing 100.

[0065] When the second display unit 340 needs to be retracted into the storage cavity 140, the processor 600 can control the second motor 520 to slowly wind up the connecting belt 540 at the third moment T3. During the winding process of the connecting belt 540, it pulls the second display unit 340 to move towards the direction close to the second motor 520. During the movement of the second display unit 340, the first roller 254 and the second roller 256 will rotate, and then the second side 210 moves towards the direction close to the first side 120. When the flexible screen assembly 300 moves to the fourth moment T4, the processor 600 controls the first driving device 400 to drive the second housing 200 to move towards the direction away from the first housing 100, so that the second housing 200 slowly retracts into the storage cavity 140 to achieve the fitting of the first housing 100 and the second housing 200. Among them, the third moment T3 is earlier than the fourth moment T4. For example, T4 = T3 + t2, where t2 is the second preset interval time, and the second preset interval time can be set according to the actual situation, and the embodiments of the present application do not limit it. It can be understood that when the second display unit 340 is retracted, the flexible screen assembly 300 moves earlier than the second housing 200, so that the flexible screen assembly 300 is always in a taut state during the process of gradually retracting the second display unit 340 into the first housing 100.

[0066] In some other embodiments, the processor 600 can also control the first driving device 400 and the second driving device 500 according to the tension value of the flexible screen assembly 300. For example, the flexible screen assembly 300 can be provided with a tension detector for detecting the tension value of the flexible screen assembly 300. When the second display portion 340 needs to be unfolded, the processor 600 first controls the first driving device 400 to start and obtains the first tension value of the flexible screen assembly 300 detected by the tension detector. When the first tension value of the flexible screen assembly 300 is greater than the first preset tension value, the processor 600 controls the second driving device 500 to start. Similarly, when the second display portion 340 needs to be retracted, the processor 600 first controls the second driving device 500 to start and obtains the second tension value of the flexible screen assembly 300 detected by the tension detector. When the second tension value of the flexible screen assembly 300 is greater than the second preset tension value, the processor 600 controls the first driving device to start. In the embodiments of the present application, the start times of the first driving device 400 and the second driving device 500 are determined according to the magnitude of the tension value of the flexible screen assembly 300, which can avoid the situation that the tension value of the flexible screen assembly 300 is too small and wrinkled due to too small a start time interval between the two, and can also avoid the situation that the tension value of the flexible screen assembly 300 is too large and damaged due to too large a start time interval between the two. Compared with the start control of the two driving devices according to a fixed time interval, the control in the embodiments of the present application is more accurate and intelligent.

[0067] In the above embodiments, alternatively, the electronic device 20 can be provided with only the first driving device 400 without the second driving device 500, such as Figure 12 shown Figure 12 is the seventh structural schematic diagram of the electronic device provided by the embodiments of the present application. One end of the flexible screen assembly 300 is connected to the first housing 100, and the other end of the flexible screen assembly 300 is connected to the first driving device 400. The first driving device 400 drives the relative movement of the first housing 100 and the second housing 200 and drives the flexible screen assembly 300 to move, so that the second display portion 340 of the flexible screen assembly 300 extends out of the storage cavity 140 and unfolds on the outer surface of the second housing 200, so that the second display portion 340 can display a picture together with the first display portion 320.

[0068] As Figure 13 and Figure 14 shown Figure 13 is Figure 12 the structural schematic diagram of the first driving device in the electronic device shown Figure 14 is Figure 12Schematic structural diagram of the pushing component in the first driving device shown. The push rod 4442 includes a support portion 4442a, a rotating shaft 4442b, and a pushing portion 4442c. One end of the pushing portion 4442c is fixed to the support portion 4442a, and the other end of the pushing portion 4442c is connected to the roller 250 (for example, connected to the roller shaft 252). The rotating shaft 4442b is disposed at one end of the support portion 4442a away from the roller 250. The flexible screen assembly 300 is slidably connected to the rotating shaft 4442b through a connecting belt 540. For example, the connecting belt 540 is wound around the rotating shaft 4442b, and one end of the connecting belt 540 is fixedly connected to the first housing 100, and the other end of the connecting belt 540 is connected to the other end of the flexible screen assembly 300.

[0069] When it is necessary to unfold the second display portion 340, the processor 600 can control the first motor 420 to drive the transmission assembly 442 to move. The transmission assembly 442 drives the pushing assembly 444 to move in a direction away from the first housing 100. During the movement of the pushing assembly 444, the second housing 200 is pushed in a direction away from the first housing 100 through the pushing portion 4442c. At the same time, since the rotating shaft 4442b also moves in a direction away from the first housing 100, the connecting belt 540 also moves in a direction away from the first housing 100 following the rotating shaft 4442b and slides along the outer surface of the rotating shaft 4442b. As a result, the length of the connecting belt 540 located on the second housing 200 is increased. Under the combined action of the second housing 200 and the connecting belt 540, the second display portion 340 slides along the roller 250 to the outside of the storage cavity 140 in the direction of the outer surface of the second housing 200, so that the second display portion 340 is exposed outside the electronic device 20. It can be understood that when the flexible screen assembly 300 receives the thrust applied by the second housing 200, the connecting belt 540 gradually reduces the pulling force on the flexible screen assembly 300, enabling the second display portion 340 of the flexible screen assembly 300 to be unfolded.

[0070] When the second display unit 340 needs to be retracted, the processor 600 can control the first motor 420 to drive the transmission assembly 442 to move. The transmission assembly 442 drives the pushing assembly 444 to move towards the first housing 100. During the movement of the pushing assembly 444, the pushing part 4442c pulls the second housing 200 to also move towards the first housing 100. At the same time, since the rotating shaft 4442b also moves towards the first housing 100, the connecting belt 540 also follows the rotating shaft 4442b to slide along the outer surface of the rotating shaft 4442b towards the first housing 100, thereby reducing the length of the connecting belt 540 located on the second housing 200. Under the combined action of the second housing 200 and the connecting belt 540, the second display unit 340 slides towards the inner surface of the second housing 200 along the roller 250 into the storage cavity 140, so that the second display unit 340 is retracted into the storage cavity 140. It can be understood that when the second housing 200 moves towards the first housing 100, the thrust applied by the second housing 200 to the flexible screen assembly 300 will gradually decrease. At this time, when the connecting belt 540 moves towards the first housing, it will pull the flexible screen assembly 300 towards the first housing 100, so that the second display unit 340 of the flexible screen assembly 300 can be retracted into the storage cavity 140.

[0071] It should be noted that during the process of the second display unit 340 of the flexible screen assembly 300 being unfolded outside the first housing 100 or retracted into the first housing 100, the flexible screen assembly 300 remains in a taut state under the combined action of the second housing 200 and the connecting belt 540, ensuring that the screen display effect of the electronic device 20 is not affected.

[0072] In order to avoid excessive friction between the connecting belt 540 and the rotating shaft 4442b, resulting in excessive tension applied by the connecting belt 540 to the flexible screen assembly 300 and further causing excessive tension of the flexible screen assembly 300 to be damaged, a third roller such as the third roller 4442d is sleeved on the outer surface of the rotating shaft 4442b in the embodiment of the present application. The third roller 4442d is rotatably connected to the rotating shaft 4442b so that the third roller 4442d can rotate around the rotating shaft 4442b. Further, when the connecting belt 540 moves, it can drive the third roller 4442d to rotate, thereby reducing the friction between the connecting belt 540 and the third roller 4442d, making the movement of the connecting belt 540 smoother, and avoiding the situation that the flexible screen assembly 300 is damaged due to excessive tension applied by the connecting belt 540 to the flexible screen assembly 300. Moreover, the third roller 4442d can also form a combined rolling mechanism with the roller 250, thereby ensuring the smooth retraction and smooth unfolding of the flexible screen assembly 300.

[0073] It can be understood that the first motor 420 in the embodiment of the present application provides an active driving effect. The roller 250 and the rotating shaft 4442b on the second housing 200 are a linkage mechanism, which performs a linkage movement under the active driving of the first motor 420, so that the movement distance of the pushing portion 4442c, the unfolding length of the second display portion 340, and the movement distance of the connecting belt 540 are equal. Furthermore, it is ensured that the flexible screen assembly 300 is in a taut state at all times during the unfolding process and the recycling process (ensuring that the tension of the flexible screen assembly 300 is within a certain range), avoiding abnormal situations such as excessive tension damage to the flexible screen assembly 300 caused by asynchronous unfolding or wrinkles due to too small tension of the flexible screen assembly 300.

[0074] In the embodiment of the present application, the relative movement between the first housing 100 and the second housing 200 and the unfolding and recycling of the flexible screen assembly 300 can be achieved through the first driving device 400. Compared with the above-mentioned application embodiment, one driving device can be reduced, and the structure of the electronic device 20 can be simplified on the basis of the above-mentioned application embodiment.

[0075] As Figure 3 shown, the second housing 200 may further include a second rear cover such as the second rear cover 240. The second rear cover 240 covers the second side 210, the third side 220, and the fourth side 230 to cover the devices provided on the second housing 200. It can be understood that the second display portion 340 of the flexible screen assembly 300 is provided on one side of the second side 210, the third side 220, and the fourth side 230, and the second rear cover 240 is provided on the other side of the second side 210, the third side 220, and the fourth side 230. The second display portion 340 of the flexible screen assembly 300 can display a picture together with the first display portion 320 provided on the first housing 100. It should be noted that the first display portion 320 provided on the first housing 100 can also display a picture alone.

[0076] The electronic device provided by the embodiment of the present application has been introduced in detail above. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the present application. At the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. An electronic device, characterized in that, comprising: a first housing; a second housing movably connected to the first housing; a first driving device for driving the first housing and the second housing to move relative to each other to achieve the engagement and separation of the first housing and the second housing; a flexible screen assembly, one end of which is connected to the first housing; a second driving device connected to the other end of the flexible screen assembly, the second driving device being configured to drive the flexible screen assembly to move following the relative movement of the first housing and the second housing, so as to retract a part of the flexible screen assembly into the first housing or the second housing, or to deploy a part of the flexible screen assembly outside the first housing or the second housing; a tension detector for detecting the tension value of the flexible screen assembly; and a processor connected to the tension detector, the first driving device and the second driving device, the processor being configured to control the first driving device to drive the first housing and the second housing to move relative to each other and control the second driving device to drive the flexible screen assembly to move following the relative movement of the first housing and the second housing according to the tension value of the flexible screen assembly detected by the tension detector, so as to prevent the flexible screen assembly from being wrinkled and uneven.

2. The electronic device according to claim 1, characterized in that, the processor is further configured to: when it is necessary to deploy a part of the flexible screen assembly outside the first housing or the second housing, the processor controls the first driving device to start and obtains the first tension value of the flexible screen assembly detected by the tension detector. When the first tension value of the flexible screen assembly is greater than a first preset tension value, the processor controls the second driving device to start.

3. The electronic device according to claim 1 or 2, characterized in that, the processor is further configured to: when it is necessary to retract a part of the flexible screen assembly into the first housing or the second housing, the processor controls the second driving device to start and obtains the second tension value of the flexible screen assembly detected by the tension detector. When the second tension value of the flexible screen assembly is greater than a second preset tension value, the processor controls the first driving device to start.

4. The electronic device according to claim 1, characterized in that, the processor is further configured to control the first driving device to drive the first housing and the second housing to move relative to each other and control the second driving device to drive the flexible screen assembly to move following the relative movement of the first housing and the second housing at different times, wherein there is a time difference between the driving time of the first driving device and the driving time of the second driving device, which is used to ensure that both ends of the flexible screen assembly are always in a stressed and taut state, so as to prevent the flexible screen assembly from being wrinkled and uneven.

5. The electronic device according to claim 4, characterized in that, the processor is configured to: At a first moment, control the first driving device to drive the first housing and the second housing to move relative to each other so that the first housing and the second housing are separated; At a second moment, control the second driving device to drive the flexible screen assembly to move following the relative movement of the first housing and the second housing, so that a part of the flexible screen assembly is unfolded outside the first housing or outside the second housing, and the first moment is earlier than the second moment.

6. The electronic device according to claim 5, wherein, the processor is further configured to: At a third moment, control the second driving device to drive the flexible screen assembly to move, and at a fourth moment, control the first driving device to drive the first housing and the second housing to move relative to each other so that the first housing and the second housing are engaged, such that a part of the flexible screen assembly is retracted into the first housing or the second housing, and the third moment is earlier than the fourth moment.

7. The electronic device according to claim 1, wherein, the first driving device includes a first motor and a pushing mechanism, the pushing mechanism is connected to the first motor, and the first motor is configured to drive the pushing mechanism to move in a direction parallel to the first housing, so that the second housing follows the pushing mechanism to move in a direction parallel to the first housing to achieve the engagement and separation of the first housing and the second housing.

8. The electronic device according to claim 7, wherein, the pushing mechanism includes a transmission component and a pushing component, the transmission component is connected to the first motor, the pushing component is connected to the transmission component and the second housing, and the first motor is configured to drive the transmission component to move so that the pushing mechanism follows the transmission component to move and drive the second housing to move in a direction parallel to the first housing.

9. The electronic device according to claim 8, wherein, the pushing component includes a first base and a push rod, the first base is disposed on the first housing, the push rod is slidably connected to the first base and connected to the second housing, and an elastic member is further sleeved on the outer surface of the push rod to support and protect the push rod.

10. The electronic device according to claim 1, wherein, the second driving device includes a second motor and a connecting belt, one end of the connecting belt is connected to the output shaft of the second motor, the other end of the connecting belt is connected to the flexible screen assembly, the second motor is configured to drive the connecting belt to extend so that a part of the flexible screen assembly is unfolded outside the second housing, and the second motor is further configured to drive the connecting belt to curl so that a part of the flexible screen assembly is retracted into the second housing.

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