Patent Description:
With development of the mobile phone industry, mobile phones continue to pursue ultimate appearances, and a screen-to-body ratio of a mobile phone screen is also increasingly higher. Especially, after the second half of <NUM>, how to further increase the screen-to-body ratio of the mobile phone screen becomes a highlight of competition among major mobile phone manufacturers. Currently, screen types with large screen-to-body ratios include a notch screen, a water drop screen, a magic eye full screen, and the like. However, none of the screen types is implemented as a true full screen. This is because a most suitable position for mounting some functional components of a mobile phone is the front of the mobile phone, for example, a front-facing camera that needs to capture front images of the mobile phone. Therefore, how to further increase the screen-to-body ratio and implement a true "full screen" without affecting functions and usage effects of the mobile phone has become a growing challenge. <CIT> discloses a camera module applied to a full-screen mobile terminal with a flexible display screen. The camera module comprises a camera module with a lens assembly, a transmission mechanism and a driving mechanism, and the transmission mechanism is in driving connection with the driving mechanism to drive the flexible display screen of the full-screen mobile terminal to curl to expose the lens assembly of the camera module. When the camera module is used for shooting, the flexible display screen is curled to expose the lens assembly of the camera module. <CIT> discloses a terminal comprising a first structure and a second structure, wherein the first structure covers the second structure; the first structure comprises a display screen, the second structure comprises a terminal body, a driving device and a function module, the driving device and the function module are arranged on the terminal body, and the display screen is connected with the driving device; the driving device is configured for driving the display screen to move, so that a portion, which is moved out of the terminal interface, of the display screen rolls into the second structure, and the function module shielded by the display screen is exposed. <CIT> discloses a display device, applied to a mobile terminal, the mobile terminal comprises a main display screen, the display device is spliced with the main display screen to form a display area of the mobile terminal, the display device comprises a display part and a driving part, and the driving part is connected to the display part so that the display part can be switched between a display position and a non-display position. When the display part is located at the display position, the display part spliced with the main display screen. When the display part is located at the non-display position, the display part is separated from the main display screen.

Embodiments of the present invention provide an electronic device, to resolve a problem that a true full screen cannot be implemented because some functional components need to be mounted in the front of an existing electronic device.

To resolve the foregoing technical problem, the present invention is implemented as follows:.

In the embodiments of the present invention, part of a screen above the functional module, that is, the second screen, is folded and unfolded to implement a true full screen under a premise that implementation of functions of the functional module is ensured. In addition, when the functions of the functional module is implemented, only part of the screen that blocks the functional module, that is, the second screen, is folded, and the other part of the screen, that is, the first screen, can still be displayed normally.

To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following clearly and completely describes the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention.

In the related art, to implement a higher screen-to-body ratio, there is a solution that uses a motor to drive a camera up and down. The camera is hidden under a screen when the camera is not in use, and extends out of a mobile phone when the camera is in use. Specifically, automatic extension and retraction of the camera can be implemented by using a driving motor, and some complex technical structures such as a screw mechanism and a sliding mechanism. A solution using a rotating motor to drive a front-facing camera to extend or a solution using a motor to drive a camera up and down usually has the following disadvantages: <NUM>. Because an opening needs to be designed in a middle metal frame in a camera extending design to cooperate with a camera extending assembly, a gap exists and affects delicacy of the appearance, and finally affects aesthetics of the appearance. Because the opening is designed in the middle metal frame to cooperate with the camera extending assembly, liquids such as water vapor and sweat easily enter the gap, causing corrosion of internal components and a mainboard of the mobile phone. Because the opening is designed in the middle metal frame to cooperate with the camera extending assembly, dust and other foreign objects easily enter the gap. Consequently, the camera cannot effectively extend, or the camera cannot extend smoothly, affecting use experience of consumers. For moving up and down of the camera, the motor needs to rotate to drive the front-facing camera to extend. Because the motor starts and responds slowly, the front-facing camera extends slowly, and extension takes a relatively long time and needs to take several seconds. Because components such as the motor, a transmission screw, and a spring are used to move the camera up and down, the components occupy a large space in the entire mobile phone. This is not conducive to a stacking layout of the entire mobile phone. Because moving up and down of the camera are driven by the motor, if the camera is dropped when being extending, the extending camera cannot immediately retract into the mobile phone due to fast free-fall movement and reverse resistance of the motor and the screw. Consequently, the extending camera is unable to move up and down normally after being dropped and deformed. Because moving up and down of the camera are driven by the motor, when the motor drives the screw to rotate, vibration and abnormal noise tend to be generated, not good for use experience of consumers. Because the opening is designed in the middle metal frame, strength of an upper end of the middle metal frame is destroyed, and the drop of the entire mobile phone tends to cause a break in the upper screen. Because the opening is designed in the middle metal frame, integrity of the upper end of the middle metal frame is destroyed, and this is not conducive to an antenna layout design using the middle metal frame as an antenna radiator. Because the front-facing camera needs to extend when taking a picture, it is easy for nearby personnel to find that the consumer is taking a selfie, not good for privacy protection of consumers.

To avoid the disadvantages of the foregoing solution that uses the motor to drive the camera up and down to implement a true full screen, an embodiment of the present invention provides a solution based on a flexible full screen. For details, refer to the following description.

<FIG> is a schematic structural diagram of an electronic device according to an embodiment of the present invention. The electronic device includes a housing, a screen module <NUM>, a functional module <NUM>, and a control mechanism <NUM>.

The functional module <NUM> and the control mechanism <NUM> are located in an accommodating space formed by the housing and the screen module <NUM>.

The screen module <NUM> includes a first screen <NUM> and a foldable second screen <NUM>. The control mechanism <NUM> is connected to the second screen <NUM> and drives the second screen <NUM> to switch between a folded state and an unfolded state.

In a case that the second screen <NUM> is in the unfolded state, the second screen <NUM> blocks the functional module <NUM>; or in a case that the second screen <NUM> is in the folded state, the functional module <NUM> is exposed from the accommodating space.

For example, when receiving a first control instruction, the control mechanism <NUM> controls the second screen <NUM> to move in a direction approaching the first screen <NUM>, so that the second screen <NUM> is in the folded state to expose the functional module <NUM>; or when receiving a second control instruction, the control mechanism <NUM> controls the second screen <NUM> to move away from the first screen <NUM>, so that the second screen <NUM> is in the unfolded state to block the functional module <NUM>.

The functional module <NUM> may be a front-facing camera, a light sensor, a distance sensor, an earpiece, or the like, and can be fixed on a middle frame <NUM> of the electronic device. The middle frame <NUM> is generally made of a metal material, and therefore can also be referred to as a middle metal frame.

Specifically, when the functional module <NUM> is the front-facing camera, because the front-facing camera is located below the opaque screen module <NUM>, when the screen module <NUM> is in the unfolded state, the front-facing camera cannot take a picture. When a user needs to take a picture, after tapping a front-shooting function, the user can control the second screen <NUM> that is on the screen module <NUM> and located above the front-facing camera to curl into the electronic device, and unblock a viewing angle of the front-facing camera, so that the front-shooting function can be implemented.

Optionally, the first screen <NUM> and the second screen <NUM> may be integrated screens in two different areas of the screen module <NUM>.

In this embodiment of the present invention, by folding and unfolding a part of a screen above the functional module <NUM>, that is, the second screen <NUM>, a true full screen is implemented while implementation of a function of the functional module is ensured In addition, when the function of the functional module <NUM> is implemented, only a part of the screen that blocks the functional module <NUM>, that is, the second screen <NUM>, is folded, and the other part of the screen, that is, the first screen <NUM>, can still be displayed normally.

Specifically, when the functional module <NUM> is the front-facing camera, by folding and unfolding the part of the screen above the front-facing camera, that is, the second screen <NUM>, the true full screen is implemented while implementation of the front-shooting function is ensured. In addition, in comparison with a solution that uses a motor to drive a camera up and down, this embodiment of the present invention has the following advantages:.

In comparison with a camera extending design in which an opening is required in a middle metal frame, this embodiment of the present invention avoids a gap that affects delicacy of the appearance, and integrity of a side wall is reserved, which helps improve aesthetics of the appearance of the side wall. In comparison with the camera extending design in which the opening is required in the middle metal frame, this embodiment of the present invention does not have a problem that liquids such as water vapor and sweat can easily enter the gap, thereby reducing a risk of corrosion of internal components and a mainboard of a mobile phone. In comparison with the camera extending design in which the opening is required in the middle metal frame, this embodiment of the present invention is free of pain points such as poor inability of the camera to extend or blocking of the camera from extending because dust and other foreign objects easily enter the gap. Therefore, switching by the consumer is natural. In comparison with slow extension of a front-facing camera in the camera extending design, the front-facing camera in this embodiment of the present invention has a short switching time for taking pictures, and user experience is good. In comparison with the camera extending design using components such as a motor, a transmission screw, and a spring that occupy a large space, in this embodiment of the present invention, a relatively small space of the entire mobile phone is occupied, good for a stacking layout of the entire mobile phone. In comparison with the camera extending design in which there is a risk of camera failure when the front-facing camera is dropped after the camera extends, the functional module <NUM> in this embodiment of the present invention, such as the front-facing camera, is located in the entire mobile phone and is not easily damaged when dropped. In comparison with the camera extending design in which vibration and abnormal sound are generated when the front-facing camera extends or retracts, in this embodiment of the present invention, it is not easy to generate abnormal sound, and this is conducive to consumer experience. In comparison with the camera extending design in which the opening required in the middle metal frame destroys strength of an upper end of the middle metal frame, in this embodiment of the present invention, integrity of the middle frame is reserved, and the screen at the upper end is not easily broken when the entire mobile phone is dropped. In comparison with the camera extending design in which the opening required in the middle metal frame destroys integrity of the upper end of the middle metal frame, in this embodiment of the present invention, the integrity of the middle frame is reserved, and this is conducive to an antenna layout design using the middle metal frame as an antenna radiator. In comparison with the camera extending design, in this embodiment of the present invention, it is not easy for nearby personnel to find that the consumer is taking a selfie, good for privacy protection of consumers.

In addition, when taking a picture, the electronic device provided in this embodiment of the present invention folds only a part of a screen that blocks the front-facing camera, that is, the second screen <NUM>, and the other part of the screen, that is, the first screen <NUM>, can still be displayed normally, so that functions such as photo preview and filter adjustment can be implemented.

The following describes the electronic device by using an example.

Optionally, referring to <FIG> and <FIG>, the electronic device further includes a transparent cover <NUM> disposed above the screen module <NUM>. Specifically, the transparent cover <NUM> may be a glass cover. The transparent cover <NUM> may also be referred to as a touchscreen (Touch Panel, TP) cover.

In this embodiment of the present invention, the transparent cover <NUM> can not only protect the functional module <NUM> and the screen module <NUM>, but also protect other components inside the electronic device.

Further optionally, the first screen <NUM> is fixedly connected to the transparent cover <NUM>.

In this embodiment of the present invention, by fixedly connecting the first screen <NUM> of the screen module <NUM>, the entire screen module <NUM> can be fixed to prevent the screen module <NUM> from moving and folding in the transparent cover <NUM> and affecting a display effect.

The second screen <NUM> of the screen module <NUM> is not fastened to the transparent cover <NUM>, and can be partially bent.

Referring to <FIG>, the control mechanism <NUM> includes a supporting roller <NUM> and a roller driving mechanism.

The supporting roller <NUM> is fixedly connected to part of the second screen <NUM>.

In a case that the roller driving mechanism drives the supporting roller <NUM> to rotate in a first direction, the supporting roller <NUM> drives the second screen <NUM> to move in a direction approaching the first screen <NUM>, to fold the second screen <NUM>; or in a case that the roller driving mechanism drives the supporting roller <NUM> to rotate in a second direction, the supporting roller <NUM> drives the second screen <NUM> to move in a direction leaving the first screen <NUM>, to unfold the second screen <NUM>.

Specifically, when the second screen <NUM> is in the unfolded state, the second screen <NUM> is located above the supporting roller <NUM> and is in contact with the supporting roller <NUM>, and the contact part is fixedly connected, for example, bonded, to the supporting roller <NUM>.

In this embodiment of the present invention, a space occupied by the supporting roller <NUM> is relatively small, and no additional space is required when the supporting roller <NUM> rotates, good for a stacking layout of the electronic device and a size design of the electronic device.

In other optional specific implementations, the control mechanism <NUM> may alternatively be in other forms, such as a telescopic mechanism or a screw driving mechanism.

Referring to <FIG>, the electronic device further includes a roller bracket <NUM>, where the roller bracket <NUM> includes a supporting plate <NUM>, the supporting plate <NUM> and the supporting roller <NUM> are arranged side by side, and when the second screen <NUM> is in the unfolded state, an edge of the second screen <NUM> away from the first screen <NUM> is flat on the supporting plate <NUM>.

Specifically, an upper surface of the supporting plate <NUM> is flush with the supporting roller <NUM>, so that the second screen <NUM> can be flat and not bent when the second screen <NUM> is in the unfolded state, to ensure a visual pleasure for the user.

The roller bracket <NUM> can be fixed on the electronic device.

Specifically, the supporting plate <NUM> can be disposed on an edge of the electronic device, and is adjacent to the frame. The supporting roller <NUM> is disposed between the supporting plate <NUM> and the first screen <NUM> at a predetermined distance from the first screen <NUM>.

In this embodiment of the present invention, not only the roller bracket <NUM> can support and fix the supporting roller <NUM>, but also the supporting plate <NUM> on the roller bracket <NUM> can support the second screen <NUM> when the second screen <NUM> is in the unfolded state. Therefore, the second screen <NUM> can be flatter, and the second screen <NUM> is prevented from being bent due to gravity or the like, which otherwise affects the display effect.

In other optional specific implementations, the roller bracket <NUM> may alternatively not include the supporting plate <NUM>, and the supporting roller <NUM> is disposed on the edge of the electronic device and is adjacent to the frame.

Optionally, referring to <FIG>, the roller driving mechanism includes a driving motor <NUM>, a driving gear <NUM>, and a driven gear <NUM>.

The driving gear <NUM> is coaxially and fixedly connected to the driving motor <NUM>.

The driven gear <NUM> meshes with the driving gear <NUM>.

The driven gear <NUM> is coaxially and fixedly connected to the supporting roller <NUM>.

In this embodiment of the present invention, referring to <FIG> and <FIG>, the driving motor <NUM> energized by a forward current drives the driving gear <NUM> to rotate in a forward direction, and finally drives the supporting roller <NUM> under the screen module <NUM> through the driven gear <NUM> to move in the first direction. Optionally, the first direction may be clockwise. Because a part of the supporting roller <NUM>, specifically a surface part C, is bonded to the second screen <NUM> in the screen module <NUM>, when the driven gear <NUM> rotates in the first direction, the supporting roller <NUM> rotates to drive a part of the screen module <NUM>, specifically a part or an entirety of the second screen <NUM>, to curl into the electronic device. A viewing angle of the functional module <NUM>, specifically the front-facing camera, is unblocked, and light is received from the transparent cover <NUM>, so that the front-facing camera implements shooting. When the front-facing camera finishes shooting, referring to <FIG> and <FIG>, the driving motor <NUM> energized by a reverse current can drive the driven gear <NUM> to rotate in the second direction, and the supporting roller <NUM> also rotates in the second direction accordingly. Optionally, the second direction may be counterclockwise. Because the second screen <NUM> in the screen module <NUM> is bonded to the surface part C of the supporting roller <NUM>, when rotating, the supporting roller <NUM> drives the screen module <NUM>, specifically the second screen <NUM> in the screen module <NUM>, to unfold to the functional module <NUM>, that is, directly above the front-facing camera, and extends to the surface of the supporting plate <NUM> of the roller bracket <NUM>, and the screen module <NUM> is fully unfolded. In this case, the functional module <NUM> cannot be seen from above, and the fully unfolded screen module <NUM> returns to a full screen display state. In this way, normal full screen displaying can be implemented, and the user can browse and view the screen normally.

In other optional specific implementations, the driven gear <NUM> may be integrally disposed with the supporting roller <NUM>, that is, a gear may be disposed on an outer side wall of the supporting roller <NUM> as the driven gear <NUM>.

Optionally, the driving motor <NUM> is disposed below the supporting plate <NUM>.

In this embodiment of the present invention, the supporting plate <NUM> can form a shield for the driving motor <NUM>, to prevent the driving motor <NUM> from being exposed, which otherwise affects aesthetics.

Optionally, the roller bracket <NUM> includes two bracket assemblies <NUM>, and the functional module <NUM> is disposed between the two bracket assemblies <NUM>.

In this embodiment of the present invention, by splitting the roller bracket <NUM> into the two bracket assemblies <NUM>, the functional module <NUM> can be disposed in a middle position on one side of the electronic device. When the functional module <NUM> is the front-facing camera, it is convenient for the user to take a picture, and an aesthetic feeling of the appearance design is improved.

Certainly, in other optional specific implementations, the functional module <NUM> may alternatively be disposed in a corner of the electronic device.

Further optionally, each of the bracket assemblies <NUM> includes one connecting member <NUM> and one supporting plate <NUM>, and the connecting member <NUM> is pivotally connected to one end of the supporting roller <NUM>. Therefore, the supporting roller <NUM> can rotate relative to the roller bracket <NUM>.

Optionally, the functional module <NUM> may be disposed between the two supporting plates <NUM> of the two bracket assemblies <NUM>, to avoid mutual interference between the functional module <NUM> and the supporting roller <NUM>.

In addition, the driving motor <NUM> may be disposed under one of the supporting plates <NUM>, on one side away from the other supporting plate <NUM>, or on one side close to the other supporting plate <NUM>.

In other optional specific implementations, the supporting roller <NUM> is provided with an opening, and a cross section of the opening is U-shaped. Referring to <FIG>, when the supporting roller <NUM> drives the second screen <NUM> to be in the folded state, the opening faces the direction away from the first screen <NUM>, and the functional module <NUM> is located in the opening and is not blocked. Referring to <FIG>, when the supporting roller <NUM> drives the second screen <NUM> to be in the unfolded state, the opening faces downward, that is, the back of the electronic device, and the functional module <NUM> is located in the opening and at least partially blocked. An area D of the supporting roller <NUM> is fixedly connected to the second screen <NUM>.

Optionally, each of the bracket assemblies <NUM> further includes one baffle, where the baffle and the supporting plate <NUM> form a stepped structure, and the baffle is located below the supporting roller <NUM>.

Optionally, the supporting roller <NUM> includes two roller assemblies <NUM> and one connecting shaft <NUM>, the two roller assemblies <NUM> are coaxially connected by the connecting shaft <NUM>, and the driven gear <NUM> is coaxially and fixedly connected to the connecting shaft <NUM>.

In this embodiment of the present invention, the driven gear <NUM> may be disposed between the two roller assemblies <NUM> of the supporting roller <NUM>. In comparison with disposition on one side of the supporting roller <NUM>, the components can be better laid out. In addition, when the electronic device is dropped, it is not prone to damage.

It should be noted that in this specification, the term "comprise", "include", or any of their variants are intended to cover a non-exclusive inclusion, so that a process, a method, an article, or an apparatus that includes a list of elements not only includes those elements but also includes other elements that are not expressly listed, or further includes elements inherent to such process, method, article, or apparatus. In absence of more constraints, an element preceded by "includes a. " does not preclude existence of other identical elements in the process, method, article, or apparatus that includes the element.

Claim 1:
An electronic device, comprising a housing, a screen module (<NUM>), a functional module (<NUM>), and a control mechanism (<NUM>), wherein
the functional module (<NUM>) and the control mechanism (<NUM>) are located in an accommodating space formed by the housing and the screen module (<NUM>);
the screen module (<NUM>) comprises a first screen (<NUM>) and a foldable second screen (<NUM>), and the control mechanism (<NUM>) is connected to the second screen (<NUM>) and drives the second screen (<NUM>) to switch between a folded state and an unfolded state; and
in a case that the second screen (<NUM>) is in the unfolded state, the second screen (<NUM>) blocks the functional module (<NUM>); or in a case that the second screen (<NUM>) is in the folded state, the functional module (<NUM>) is exposed from the accommodating space;
wherein the control mechanism (<NUM>) comprises a supporting roller (<NUM>) and a roller driving mechanism, wherein
the supporting roller (<NUM>) is fixedly connected to part of the second screen (<NUM>); and
in a case that the roller driving mechanism drives the supporting roller (<NUM>) to rotate in a first direction, the supporting roller (<NUM>) drives the second screen (<NUM>) to move in a direction approaching the first screen (<NUM>), to fold the second screen (<NUM>); or in a case that the roller driving mechanism drives the supporting roller (<NUM>) to rotate in a second direction, the supporting roller (<NUM>) drives the second screen (<NUM>) to move in a direction leaving the first screen (<NUM>), to unfold the second screen (<NUM>);
characterized in that
the electronic device further comprises a roller bracket (<NUM>), wherein the roller bracket (<NUM>) is pivotally connected to the supporting roller (<NUM>), wherein the roller bracket (<NUM>) comprises a supporting plate (<NUM>), the supporting plate (<NUM>) and the supporting roller (<NUM>) are arranged side by side, and when the second screen (<NUM>) is in the unfolded state, an edge of the second screen (<NUM>) away from the first screen (<NUM>) is flat on the supporting plate (<NUM>).