Electronic device

Abstract

The present application discloses an electronic device, belonging to the technical field of communication devices. The electronic device includes: a first housing; a second housing rotatably connected to the first housing to enable the electronic device to switch between a folded state and an unfolded state; a first display screen that can be folded or unfolded with the relative rotation of the first housing and the second housing; a second display screen disposed on a side of the second housing opposite to the first display screen; both the first display screen and the second display screen are provided with light-transmitting areas; a fingerprint module disposed in the first housing; a light-adjusting module disposed in the second housing and located between the light-transmitting area of the first display screen and the light-transmitting area of the second display screen; wherein, when the electronic device is in the unfolded state, the light-adjusting module is in a light-blocking state, and the fingerprint module performs fingerprint recognition through the light-transmitting area of the first display screen; when the electronic device is in the folded state, the light-adjusting module is in a light-passing state, and the fingerprint module performs fingerprint recognition through the light-transmitting areas of the first display screen and the second display screen.

Description

Technical Field

[0001] This application belongs to the technical field of communication devices, and particularly relates to an electronic device. Background Art

[0002] With the continuous development of technology, in order to enhance the user experience when watching videos and playing games, the screen size of electronic devices has been designed to be larger and larger. However, the increase in screen size also means an increase in the overall size of the device, which results in poor portability of the electronic device. In response to this, the industry has adopted foldable screen technology to balance the above two requirements.

[0003] In related technologies, an electronic device has a foldable screen and an external screen. The foldable screen of the electronic device can be used in the unfolded state, and the external screen can be used in the folded state. In an electronic device that simultaneously adopts an in-screen fingerprint unlocking solution, in-screen fingerprint modules need to be provided on both the lower sides of the foldable screen and the external screen. Such a structural layout will obviously lead to the complication of the structure of the electronic device. Summary of the Invention

[0004] The purpose of the embodiments of this application is to provide an electronic device that can simplify the structure of the electronic device.

[0005] To solve the above technical problems, this application is implemented as follows:

[0006] The embodiments of this application provide an electronic device, including:

[0007] A first housing;

[0008] A second housing rotatably connected to the first housing to enable the electronic device to switch between a folded state and an unfolded state;

[0009] A first display screen, with both ends thereof connected to the first housing and the second housing respectively, and capable of being folded or unfolded as the first housing and the second housing rotate relative to each other;

[0010] A second display screen provided on a side of the second housing opposite to the first display screen; both the first display screen and the second display screen are provided with light-transmitting areas;

[0011] A fingerprint module provided in the first housing;

[0012] A dimming module provided in the second housing and located between the light-transmitting area of the first display screen and the light-transmitting area of the second display screen;

[0013] Among them, when the electronic device is in the unfolded state, the light-dimming module is in an opaque state, and the fingerprint module performs fingerprint recognition through the light-transmitting area of the first display screen; when the electronic device is in the folded state, the light-dimming module is in a light-passing state, and the fingerprint module performs fingerprint recognition through the light-transmitting areas of the first display screen and the second display screen.

[0014] In the electronic device disclosed in the embodiments of the present application, by providing a light-dimming module for adjusting the light transmission amount in the first housing, when the electronic device is in the unfolded state, the user can perform fingerprint recognition through the first display screen, and the light-dimming module can block the light from passing through, so that the areas of the first display screen and the second display screen corresponding to the light-dimming module are non-light-transmitting areas, thereby optimizing the display effect of the first display screen; when the electronic device is in the folded state, the user can perform fingerprint recognition through the second display screen, and the light-dimming module can allow the fingerprint light passing through the second display screen to pass through and project through the light-transmitting area of the first display screen to the fingerprint module to achieve fingerprint recognition.

[0015] Compared with the related art, the electronic device in the embodiments of the present application only sets one fingerprint module, and can realize the dual-screen fingerprint recognition function of the foldable electronic device, effectively simplifying the structure of the electronic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 and Figure 2 are respectively schematic structural diagrams of the electronic device disclosed in the embodiments of the present application in the unfolded state and the folded state;

[0017] Figure 3 is an exploded structural diagram of the first electronic device disclosed in the embodiments of the present application;

[0018] Figure 4 is a cross-sectional view of the first electronic device disclosed in the embodiments of the present application;

[0019] Figure 5 and Figure 6 are respectively a top view and a bottom view of the first light-dimming module blocking the light path disclosed in the embodiments of the present application;

[0020] Figure 7 and Figure 8 are respectively a top view and a bottom view of the first light-dimming module avoiding the light path disclosed in the embodiments of the present application;

[0021] Figure 9 is an exploded structural diagram of the second electronic device disclosed in the embodiments of the present application;

[0022] Figure 10 is a cross-sectional view of the second electronic device disclosed in the embodiments of the present application;

[0023] Figure 11 The bottom view of the second light - dimming module of the present application embodiment blocking the light path;

[0024] Figure 12 The bottom view of the second light - dimming module of the present application embodiment avoiding the light path;

[0025] Figure 13 The exploded structural schematic diagram of the third electronic device of the present application embodiment;

[0026] Figure 14 The cross - sectional view of the third electronic device of the present application embodiment;

[0027] Figure 15 The bottom view of the third light - dimming module of the present application embodiment blocking the light path;

[0028] Figure 16 The bottom view of the third light - dimming module of the present application embodiment avoiding the light path.

[0029] Explanation of reference numerals:

[0030] 100 - First housing, 200 - Second housing, 210 - First light - passing hole,

[0031] 300 - First display screen, 310 - First sub - screen, 320 - Second sub - screen,

[0032] 400 - Second display screen, 500 - Fingerprint module,

[0033] 600 - Light - dimming module, 610 - Substrate, 611 - Second light - passing hole, 612 - Guide groove, 620 - First driving component, 621 - Electric heating device, 622 - Shape memory alloy component, 630 - Blade, 631 - Splicing corner, 632 - Fitting part, 640 - Baffle, 641 - Rack part, 650 - Second driving component, 651 - Electromagnet device, 652 - Elastic part, 653 - Motor, 654 - Transmission gear,

[0034] 700 - Translucent support plate, 800 - Circuit board, 900 - Fingerprint recognition area, 1000 - Rotating hinge. Detailed implementation manners

[0035] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are 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 of ordinary skill in the art belong to the scope of protection of the present application.

[0036] The terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of this application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are usually of the same type, and do not limit the number of objects. For example, the first object can be one or more. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / ", generally represents an "or" relationship between the associated objects before and after.

[0037] The following will describe in detail the technical solutions disclosed in the embodiments of this application with reference to the accompanying drawings.

[0038] To solve the technical problem in the related art that the under-screen fingerprint modules need to be provided on both the folding screen and the lower side of the outer screen of the electronic device, resulting in an overly complex structure, the embodiments of this application provide an electronic device.

[0039] Please refer to Figures 1 to 16 , the electronic device disclosed in the embodiments of this application includes a first housing 100, a second housing 200, a first display screen 300, a second display screen 400, a fingerprint module 500, and a dimming module 600.

[0040] Among them, the first housing 100 and the second housing 200 are the basic components of the electronic device, which can provide an installation basis for components such as the first display screen 300, the second display screen 400, the fingerprint module 500, and the dimming module 600 in the electronic device.

[0041] The second housing 200 is rotatably connected to the first housing 100, that is, relative rotation can occur between the first housing 100 and the second housing 200, so that the electronic device can be switched between a folded state and an unfolded state. The electronic device may include a rotating hinge 1000, and the first housing 100 and the second housing 200 are rotationally matched through the rotating hinge 1000.

[0042] Both ends of the first display screen 300 are respectively connected to the first housing 100 and the second housing 200, and can be folded or unfolded with the relative rotation of the first housing 100 and the second housing 200; the second display screen 400 is disposed on the side of the second housing 200 opposite to the first display screen 300.

[0043] Specifically, the first display screen 300 is the flexible folding screen of the electronic device. Relatively speaking, the second display screen 400 is the outer screen of the electronic device. When the electronic device is in the unfolded state, the display area of the first display screen 300 is larger, thus meeting the user's demand for a large display screen; when the electronic device is in the folded state, the overall size of the electronic device is smaller, and the user can realize the display function of the electronic device through the second display screen 400, and it is convenient for the user to carry and hold the electronic device.

[0044] The embodiments of the present application do not limit the specific angle between the first housing 100 and the second housing 200 when the electronic device is in the unfolded state or the folded state. Optionally, when the electronic device is in the unfolded state, the angle between the first housing 100 and the second housing 200 is 180°, as Figure 1 shown; when the electronic device is in the folded state, the angle between the first housing 100 and the second housing 200 is 0°, as Figure 2 shown.

[0045] The first display screen 300 may include a first sub-screen 310 and a second sub-screen 320. The first sub-screen 310 is correspondingly connected to the first housing 100, and the second sub-screen 320 is correspondingly connected to the second housing 200. In such a layout, the first housing 100 is the carrier of the first sub-screen 310, and the second housing 200 is the carrier of the second sub-screen 320. When the first housing 100 and the second housing 200 are unfolded or folded, the first sub-screen 310 and the second sub-screen 320 can be driven to unfold or fold. Among them, the first sub-screen 310 and the second sub-screen 320 can be independently displayed.

[0046] The first display screen 300 may further include a third sub-screen. The first sub-screen 310 is connected to the second sub-screen 320 through the third sub-screen. In this way, the first sub-screen 310, the second sub-screen 320 and the third sub-screen together constitute the complete display area of the first display screen 300. The third sub-screen corresponds to the area between the first housing 100 and the second housing 200, and specifically may correspond to the rotating hinge 1000. In this way, during the folding process of the electronic device, the third sub-screen is deformed. Among them, the third sub-screen can be independently displayed.

[0047] Meanwhile, both the first display screen 300 and the second display screen 400 are provided with light-transmitting areas; a fingerprint module 500 is disposed within the first housing 100; a light-adjusting module 600 is disposed within the second housing 200 and located between the light-transmitting area of the first display screen 300 and the light-transmitting area of the second display screen 400; when the electronic device is in the unfolded state, the light-adjusting module 600 is in a light-blocking state, and the fingerprint module 500 performs fingerprint recognition through the light-transmitting area of the first display screen 300; when the electronic device is in the folded state, the light-adjusting module 600 is in a light-passing state, and the fingerprint module 500 performs fingerprint recognition through the light-transmitting areas of the first display screen 300 and the second display screen 400.

[0048] Specifically, in the embodiments of the present application, the electronic device employs optical fingerprint recognition technology. Optical fingerprint recognition technology means that when a finger presses the fingerprint recognition area of the display screen, the built-in module of the display screen emits light to illuminate the fingerprint recognition area, the light illuminating the fingerprint is reflected and passes through the display screen, and is projected onto the fingerprint sensor inside the electronic device, and the fingerprint sensor compares the reflected light with the pre-recorded fingerprint image information to perform recognition and judgment.

[0049] Among them, the light-adjusting module 600 is used to adjust the light passing amount, and it can be connected to the circuit board 800 of the electronic device. The light-transmitting areas of the first display screen 300 and the second display screen 400 are both used to transmit light, so that the light illuminating the fingerprint can be smoothly transmitted through the corresponding display screen after reflection, and is projected onto the fingerprint module 500 (i.e., the fingerprint recognition sensor) inside the electronic device. Both the first sub-screen 310 and the second sub-screen 320 of the first display screen 300 have light-transmitting areas. Thus, the light-adjusting module 600 is located between the light-transmitting area of the second sub-screen 320 of the first display screen 300 and the light-transmitting area of the second display screen 400. To ensure the smooth propagation of the fingerprint light, a first light-passing hole 210 corresponding to the light-transmitting area and the light-adjusting module 600 may be provided within the second housing 200.

[0050] Such as Figure 1As shown, when the electronic device is in the unfolded state, the user uses the first display screen 300. The user can press on the fingerprint recognition area 900 of the first display screen 300, which corresponds to the fingerprint module 500. The light illuminating the fingerprint can pass through the light-transmitting area of the first display screen 300 and be smoothly reflected to the fingerprint module 500 inside the first housing 100, thereby realizing fingerprint recognition. It should be noted that the light-blocking state of the light-dimming module 600 is the state of blocking light transmission, and the light-dimming module 600 is located between the light-transmitting area of the first display screen 300 and the light-transmitting area of the second display screen 400. When the electronic device is in the unfolded state, the area of the light-dimming module 600 corresponding to the first display screen 300 is a non-light-transmitting area, thereby avoiding the difference in light transmittance between this area and other areas of the first display screen 300, that is, avoiding the "perspective" problem, so as to ensure that the overall screen display color of the first display screen 300 remains consistent and achieves a better display effect.

[0051] As Figure 2 shown, when the electronic device is in the folded state, the first display screen 300 is folded inside the electronic device, while the second display screen 400 is on the outside of the electronic device. The user can use the second display screen 400, and the user can press on the preset fingerprint recognition area 900 of the second display screen 400. At the same time, when the electronic device is in the folded state, the light-transmitting area of the second display screen 400 is arranged corresponding to the two light-transmitting areas (the light-transmitting areas on the first sub-screen 310 and the second sub-screen 320) of the first display screen 300, and the light-dimming module 600 is in the light-passing state, that is, the light-dimming module 600 allows fingerprint light to pass through. In this way, the light illuminating the fingerprint can sequentially pass through the light-transmitting areas of the second display screen 400, the second sub-screen 320, and the first sub-screen 310 and be smoothly reflected to the fingerprint module 500 inside the first housing 100, thereby realizing fingerprint recognition.

[0052] Compared with the related art, the electronic device in the embodiment of the present application only sets one fingerprint module 500, and can realize the dual-screen fingerprint recognition function of the foldable electronic device, which undoubtedly effectively simplifies the structure of the electronic device. Specifically, the electronic device in the embodiment of the present application can reduce the number of fingerprint modules 500, so as to save the stacking space inside the electronic device, and can reduce the circuit layout, thereby reducing the cost and realizing the thin and light design of the electronic device.

[0053] In the embodiment of the present application, there are various types of the light-dimming module 600. For example, the light-dimming module 600 is an electrochromic device. When the electronic device is in the unfolded state, the electrochromic device is in a colored state, so as to realize light blocking; when the electronic device is in the folded state, the electrochromic device is in a transparent state, so as to realize light passing.

[0054] In another implementation scheme of the light-dimming module 600, asFigures 3 to 8 As shown in Figures 3 to 8 , the dimming module 600 may include a first driving component 620 and a plurality of blades 630. The plurality of blades 630 are arranged circumferentially along the optical path of the fingerprint light, and are all movably disposed within the second housing 200 between a first position and a second position. When the plurality of blades 630 are in the first position, the plurality of blades 630 are spliced together to block the optical path; when the plurality of blades 630 are in the second position, the plurality of blades 630 avoid the optical path; the first driving component 620 is connected to the plurality of blades 630 and is configured to drive the plurality of blades 630 to move.

[0055] In this structural layout, the first driving component 620 is configured to drive the blades 630 to move between the first position and the second position. When the plurality of blades 630 are in the first position, the plurality of blades 630 block the optical path, that is, prevent the light from propagating, so that the dimming module 600 is in the light-blocking state; when the plurality of blades 630 are in the second position, the plurality of blades 630 all avoid the optical path, and at this time the light can propagate smoothly, so that the dimming module 600 is in the light-passing state.

[0056] In the solution where the plurality of blades 630 are spliced together, the area surrounded by the plurality of blades 630 can form an avoidance hole through which the fingerprint light can pass. The size of the avoidance hole can be changed by switching the blades 630 between the first position and the second position, so as to change the light-passing amount of the fingerprint light. Since the solution of splicing the plurality of blades 630 determines that the blades 630 all move substantially in the radial direction, the avoidance hole is always on the optical path of the fingerprint light. Thus, even if the avoidance hole is made smaller by driving the blades 630 to be spliced, it can still ensure that the fingerprint light passes through, so as to ensure that the fingerprint recognition function can be successfully realized. Of course, when less fingerprint light passes through, the sensitivity of the fingerprint recognition function will decrease.

[0057] It can be seen that the solution of splicing the plurality of blades 630 in the embodiment of the present application can adjust the light-passing amount of the fingerprint light by adjusting the size of the avoidance hole, and can ensure the propagation of the fingerprint light on its optical path, and finally adjust the sensitivity of the fingerprint recognition function of the electronic device to meet the needs of different users.

[0058] In addition, the plurality of blades 630 in the embodiment of the present application are arranged circumferentially along the optical path of the fingerprint light, so as to avoid the deficiency of the over-large size in a single direction inside the electronic device, thereby optimizing the internal structural layout of the device.

[0059] Further, as Figures 4 to 8, the dimming module 600 may further include a substrate 610. The substrate 610 is provided with a second light passing hole 611, and the second light passing hole 611 is arranged corresponding to the light path. The blade 630 is movably arranged on the substrate 610. Among the blade 630 and the substrate 610, one of them is provided with a guide groove 612, and the other is provided with a matching part 632. The matching part 632 is movably arranged in the guide groove 612.

[0060] With such a setting, the second light passing hole 611 allows light to pass through, so as to ensure that an optical path can be smoothly formed inside the dimming module 600 when the dimming module 600 is in a light passing state. The substrate 610 is a carrier for the movable arrangement of the blade 630. As an independent structure, the substrate 610 is more convenient for processing the matching structure with the blade 630.

[0061] As Figure 5 and Figure 7 shown, the matching part 632 is arranged on the blade 630, and the guide groove 612 is arranged on the substrate 610. Of course, the matching part 632 can also be arranged on the substrate 610, and the guide groove 612 is arranged on the blade 630. The embodiments of the present application do not limit the specific setting positions of the matching part 632 and the guide groove 612. The matching part 632 is usually a convex structure. It should be understood that the matching relationship between the matching part 632 and the guide groove 612 not only realizes the movable arrangement of the blade 630 on the substrate 610, but also the guide groove 612 plays a guiding role in the moving action of the blade 630 through the matching part 632, so as to ensure that the blade 630 can accurately move between the first position and the second position, thereby improving the accuracy of the moving path of the blade 630 and the stability of the accurate switching of the dimming module 600 between the light blocking state and the light passing state.

[0062] In another embodiment, the blade 630 of the embodiment of the present application can be directly in guiding and moving cooperation with the second housing 200, and the electronic device does not need to be provided with a substrate 610.

[0063] Furthermore, as Figures 5 to 8 shown, the blade 630 has a splicing corner 631. The blade 630 includes a first side wall and a second side wall located on both sides of the splicing corner 631. The blade 630 abuts against the splicing corners 631 of two adjacent blades 630 through the first side wall and the second side wall respectively. The first driving assembly 620 is connected to one of the blades 630. When the first driving assembly 620 drives the blade 630 to move to the first position, the blade 630 pushes the blade 630 abutting against its first side wall to block the light path. When the first driving assembly 620 drives the blade 630 to move to the second position, the blade 630 pushes the blade 630 abutting against its second side wall to avoid the light path.

[0064] It should be understood that the blades 630 can be spliced at the vertices of the splicing corners 631 so that the blades 630 are completely spliced along a circumference, ensuring that the optical path of the light is completely blocked. Specifically, each blade 630 can abut against the splicing corners 631 of two adjacent blades 630 through the first side wall and the second side wall. That is, along the circumference of the optical path of the fingerprint light, multiple blades 630 are arranged in sequence, and each blade 630 abuts against the adjacent blade 630 through the first side wall and the second side wall respectively.

[0065] During the process of the blade 630 being driven to move from the second position to the first position, the blade 630 pushes the adjacent blade 630 to move through the first side wall, so that all the blades 630 along the circumference of the optical path of the fingerprint light move towards the first position, thus realizing the switching of the dimming module 600 from the light-transmitting state to the light-blocking state. During the process of the blade 630 being driven to move from the first position to the second position, the blade 630 pushes the adjacent blade 630 to move through the second side wall, so that all the blades 630 along the circumference of the optical path of the fingerprint light move towards the second position, thus realizing the switching of the dimming module 600 from the light-blocking state to the light-transmitting state.

[0066] Obviously, the first driving component 620 in the embodiment of the present application can drive all the blades 630 to move by driving one blade 630. Compared with the scheme of configuring a driving device for each blade 630, it effectively saves costs and the stacking space inside the electronic device.

[0067] In the embodiment of the present application, the number of the blades 630 is not limited. For example Figure 6 and Figure 8 as shown, the number of the blades 630 can be selected as 6, or it can also be other numbers such as four or five.

[0068] Furthermore, as Figure 4 , Figure 5 and Figure 7 shown, the first driving component 620 can be selected as an electro-deformable component, and the electro-deformable component drives the blade 630 to move through telescopic deformation. It should be understood that the electro-deformable component can conveniently drive the blade 630 by energizing and de-energizing, so as to facilitate the switching of the dimming module 600 between the light-blocking state and the light-transmitting state. The structure of the electro-deformable component is relatively simple, which can simplify the internal structure layout of the electronic device.

[0069] Certainly, the embodiment of the present application does not limit the specific type of the first driving component 620. For example, it can be a linear motor 653, a hydraulic telescopic member, etc.

[0070] Among them, the electro-deformation component may include an electro-heating device 621 and a shape memory alloy component 622. The electro-heating device 621 is used to heat the shape memory alloy component 622, and the shape memory alloy component 622 is connected to the blade 630. In such a layout, the electro-heating device 621 is the excitation device of the shape memory alloy component 622. By sending an excitation signal to the electro-heating device 621, the electro-heating device 621 can transfer energy to the shape memory alloy component 622, so that the shape memory alloy component 622 can perform telescopic movements to drive the blade 630 to move. The shape memory alloy component 622 can be a shape memory alloy wire.

[0071] In addition, the electro-deformation component can also be made of electroactive polymer (Electroactive Polymer, namely EAP), piezoelectric material, etc.

[0072] In another implementation of the dimming module 600, as Figures 9 to 16 shown, the dimming module 600 may include a baffle 640 and a second driving component 650. The baffle 640 is movably disposed within the second housing 200 between a third position and a fourth position. When the baffle 640 is in the third position, the baffle 640 blocks the optical path of the fingerprint light; when the baffle 640 is in the fourth position, the baffle 640 avoids the optical path; the second driving component 650 is connected to the baffle 640 and is used to drive the baffle 640 to move.

[0073] In this implementation, the second driving component 650 is the driving device corresponding to the baffle 640. During the process of driving the baffle 640 to move from the fourth position to the third position, the baffle 640 gradually blocks the optical path of the fingerprint light, thus realizing the switching of the dimming module 600 from the light-passing state to the light-blocking state. During the process of driving the baffle 640 to move from the third position to the fourth position, the baffle 640 gradually avoids the optical path of the fingerprint light, thus realizing the switching of the dimming module 600 from the light-blocking state to the light-passing state. Such a driving scheme of driving the baffle 640 has a relatively simple structure and can simplify the structural layout inside the electronic device.

[0074] In a specific implementation of the second driving component 650, as Figures 9 to 12 shown, the second driving component 650 may include an electromagnet device 651 and an elastic member 652. The baffle 640 is a magnetic structure member. The electromagnet device 651 and the elastic member 652 are respectively disposed on opposite sides of the baffle 640. Among the electromagnet device 651 and the elastic member 652, one of them is used to drive the baffle 640 to move to the third position, and the other is used to drive the baffle 640 to move to the fourth position.

[0075] It should be understood that since the baffle 640 is a magnetic structural member, when the electromagnet device 651 is energized, the electromagnet device 651 generates a driving effect on the baffle 640 through magnetic force. The elastic member 652 can store energy when compressed, and at this time, a restoring force can be applied to the baffle 640. The elastic member 652 can store energy when stretched, and at this time, a pulling force can be applied to the baffle 640. Both of these states can apply a driving effect to the baffle 640.

[0076] The electromagnet device 651 can change the magnitude of the driving effect by the intensity of the energization, thereby making it easier to achieve the control of the adjustment accuracy, and the structure of the electromagnetic driving scheme is relatively simple.

[0077] The embodiments of the present application do not limit the specific driving relationships between the electromagnet device 651 and the elastic member 652 and the baffle 640 respectively. Among them, as Figures 10 to 12 shown, the elastic member 652 can be selected as a spring, or the elastic member 652 can also be foam, rubber, elastic polymer material, etc.

[0078] As Figure 11 and Figure 12 shown, when the electromagnet device 651 is energized, the electromagnet device 651 applies a suction force to the baffle 640 to drive the baffle 640 to move to the third position, and the elastic member 652 is in a stretched state and stores energy; when the electromagnet device 651 is de-energized, the elastic member 652 contracts and releases energy to apply a pulling force to the baffle 640 to drive the baffle 640 to move to the fourth position.

[0079] In other embodiments, when the electromagnet device 651 is energized, the electromagnet device 651 can apply a repulsive force to the baffle 640 to drive the baffle 640 to move to the fourth position, and the elastic member 652 is in a compressed state and stores energy; when the battery iron device is de-energized, the elastic member 652 rebounds and elongates to release energy to apply a pushing force to the baffle 640 to drive the baffle 640 to move to the third position.

[0080] In a specific another embodiment of the second driving assembly 650, as Figures 13 to 16 shown, the second driving assembly 650 may include a motor 653 and a transmission gear 654. The baffle 640 includes a rack portion 641 provided at one end thereof close to the motor 653. The transmission gear 654 is provided at the output end of the motor 653, and the transmission gear 654 meshes with the rack portion 641.

[0081] It should be understood that the transmission gear 654 can rotate with the output end of the motor 653, and the rack portion 641 can move with the transmission gear 654, thereby driving the baffle 640 to move. Specifically, by adjusting the output rotation direction of the motor 653 differently, the baffle 640 can be moved between the third position and the fourth position. In the above-described gear-rack drive solution, the rack portion 641 moves linearly without relative rotation, thereby reducing the probability of interference with other components during transmission and facilitating the layout of other components in the internal environment of the device.

[0082] In an alternative embodiment, as Figure 10 and Figure 14 shown, the electronic device may further include a light-transmitting support plate 700. The light-transmitting support plate 700 is disposed within the second housing 200 and is located between the light modulation module 600 and the first display screen 300. The first display screen 300 is attached to the light-transmitting support plate 700.

[0083] It should be understood that the light-transmitting support plate 700 can transmit fingerprint light, which can ensure the smooth realization of the fingerprint recognition function. The area where the light modulation module 600 is located is a relatively weak area inside the second housing 200. The light-transmitting support plate 700 can enhance the strength of this area, thereby optimizing the structural stability of the electronic device. In the case where the light modulation module 600 is implemented by splicing the blades 630 or moving the baffle 640, when the light modulation module 600 is in the light-transmitting state, the supporting effect of the blades 630 or the baffle 640 is weakened, while the light-transmitting support plate 700 can always provide a good supporting effect on the first display screen 300. Even if the first display screen 300 is a flexible folding screen, it can ensure relatively excellent structural stability.

[0084] The electronic device disclosed in the embodiments of the present application may be a smart phone, a tablet computer, an e-book reader, a wearable device (such as a smart watch), an electronic game console, etc. The embodiments of the present application do not specifically limit the types of electronic devices.

[0085] The embodiments of the present application have been described above with reference to the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the spirit and scope protected by the claims of the present application, and all of them fall within the protection scope of the present application.

Claims

1. An electronic device, characterized in that, Comprising: A first housing; A second housing rotatably connected to the first housing to enable the electronic device to switch between a folded state and an unfolded state; A first display screen, with both ends thereof connected to the first housing and the second housing respectively, and capable of being folded or unfolded along with the relative rotation of the first housing and the second housing; A second display screen provided on a side of the second housing opposite to the first display screen; both the first display screen and the second display screen are provided with light-transmitting areas; A fingerprint module provided inside the first housing; A light-dimming module provided in the second housing and located between the light-transmitting area of the first display screen and the light-transmitting area of the second display screen; Wherein, when the electronic device is in the unfolded state, the light-dimming module is in a light-blocking state, and the fingerprint module performs fingerprint recognition through the light-transmitting area of the first display screen; when the electronic device is in the folded state, the light-dimming module is in a light-passing state, and the fingerprint module performs fingerprint recognition through the light-transmitting areas of the first display screen and the second display screen.

2. The electronic device according to claim 1, wherein The light-dimming module includes a first driving component and a plurality of blades. The plurality of blades are arranged circumferentially along the optical path of the fingerprint light, and are all movably provided inside the second housing between a first position and a second position. When the plurality of blades are in the first position, the plurality of blades are spliced with each other to block the optical path; when the plurality of blades are in the second position, the plurality of blades avoid the optical path; the first driving component is connected to the plurality of blades and is used to drive the plurality of blades to move.

3. The electronic device according to claim 2, wherein The light-dimming module further includes a substrate, and the substrate is provided with a second light-passing hole corresponding to the optical path, and the blades are movably provided on the substrate; Among the blades and the substrate, one of them is provided with a guide groove, and the other is provided with a mating portion, and the mating portion is movably arranged in the guide groove.

4. The electronic device according to claim 2, wherein The blade has a splicing corner portion. The blade includes a first side wall and a second side wall located on both sides of the splicing corner portion. The blade is in abutment with the splicing corner portions of two adjacent blades through the first side wall and the second side wall respectively, and the first driving component is connected to one of the blades; When the first driving component drives the blade to move to the first position, the blade pushes the blade in abutment with its first side wall to block the optical path; when the first driving component drives the blade to move to the second position, the blade pushes the blade in abutment with its second side wall to avoid the optical path.

5. The electronic device according to claim 4, wherein The first driving component is an electro-deformable component, and the electro-deformable component drives the blade to move through telescopic deformation.

6. The electronic device according to claim 5, wherein The electro-deformable component includes an electro-heating device and a shape memory alloy component. The electro-heating device is used to heat the shape memory alloy component, and the shape memory alloy component is connected to the blade.

7. The electronic device according to claim 1, wherein The dimming module includes a baffle and a second driving component. The baffle is movably arranged in the second shell between a third position and a fourth position. When the baffle is in the third position, the baffle blocks the light path of the fingerprint light; when the baffle is in the fourth position, the baffle avoids the light path. The second driving component is connected to the baffle and is used to drive the baffle to move.

8. The electronic device according to claim 7, wherein The second driving component includes an electromagnet device and an elastic member, the baffle is a magnetic structural member, the electromagnet device and the elastic member are respectively arranged on opposite sides of the baffle, and one of the electromagnet device and the elastic member is used to drive the baffle to move to the third position, and the other is used to drive the baffle to move to the fourth position.

9. The electronic device according to claim 8, characterized in that, When the electromagnet device is powered on, the electromagnet device applies suction to the baffle to drive the baffle to move to the third position; when the electromagnet device is powered off, the elastic member contracts and applies pulling force to the baffle to drive the baffle to move to the fourth position.

10. The electronic device according to claim 7, wherein The second driving assembly includes a motor and a transmission gear. The baffle includes a rack portion disposed at one end thereof close to the motor. The transmission gear is disposed at an output end of the motor, and the transmission gear is meshed with the rack portion.

11. The electronic device according to claim 1, wherein The electronic device further comprises a light-transmitting support plate, wherein the light-transmitting support plate is arranged in the second housing and between the dimming module and the first display screen, and the first display screen is attached to the light-transmitting support plate.

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