Foldable screen device

Abstract

The folding screen device comprises a first shell (100), a second shell (200), a third shell (300), a first hinge (400), a second hinge (500) and a flexible screen (600); wherein the opposite ends of the first hinge (400) are connected with the first shell (100) and the second shell (200) respectively, the opposite ends of the second hinge (500) are connected with the second shell (200) and the third shell (300) respectively, and the flexible screen (600) is connected with the first shell (100), the second shell (200) and the third shell (300) respectively; the first hinge (400) can be deformed so that the first shell (100) is folded or unfolded relative to the second shell (200), and the second hinge (500) can be deformed so that the second shell (200) is folded or unfolded relative to the third shell (300); the thickness of the third shell (300) is greater than the thickness of the first shell (100) and / or the thickness of the second shell (200), and the thickness of the first shell (100) is different from the thickness of the second shell (200). The thicknesses of the multiple shells can be different, which reduces the thickness of the folding screen device in the folded state, and also makes the folding screen device lighter, thereby providing a better holding feeling for the user.

Description

[0001] This application claims priority to the Chinese Patent Application No. 202211183546.6, filed on September 27, 2022, entitled “A Foldable Electronic Device”, and the Chinese Patent Application No. 202310180076.6, filed on February 21, 2023, entitled “Foldable Screen Device”, both of which are incorporated by reference in their entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of electronic devices, and in particular to a foldable screen device. BACKGROUND

[0003] With the continuous development of display technology, foldable screen devices have gradually become a development trend of future electronic products. However, the existing foldable screen devices still have some defects.

[0004] On the one hand, in the unfolded state, the screen ratio of the foldable screen device cannot be well adapted to many application scenarios (for example, playing videos, playing games, reading e-books, reading papers, etc.). Taking playing videos as an example, the ratio of the video is generally 16:9, but in the unfolded state, the screen ratio of the foldable screen device is mostly close to 1:1, so the user experience is not good.

[0005] On the other hand, in the folded state, the foldable screen device is relatively thick, and the user's holding feeling is not good.

[0006] In summary, the existing foldable screen device still has room for further improvement. SUMMARY

[0007] The present application provides a foldable screen device for improving the existing foldable screen device.

[0008] In a first aspect, a foldable screen device is provided, comprising a first housing, a second housing, a third housing, a first hinge, a second hinge and a flexible screen; wherein opposite ends of the first hinge are connected with the first housing and the second housing respectively, opposite ends of the second hinge are connected with the second housing and the third housing respectively, and the flexible screen is connected with the first housing, the second housing and the third housing respectively; the first hinge can be deformed so that the first housing is folded or unfolded relative to the second housing, and the second hinge can be deformed so that the second housing is folded or unfolded relative to the third housing; the thickness of the third housing is greater than the thickness of the first housing and / or the thickness of the second housing, and the thickness of the first housing is different from the thickness of the second housing.

[0009] In the prior art, the thickness of the plurality of housings of the folding screen device is large, resulting in poor hand feeling of the whole machine. According to the embodiments of the present application, since the thickness of the third housing is greater than the thickness of the first housing and / or the thickness of the second housing, and the thickness of the first housing is different from the thickness of the second housing, that is, the plurality of housings can be of different thicknesses, so that the folding screen device can be made thinner, the thickness of the folding screen device in the folded state is reduced, and the weight of the folding screen device is lighter, thereby providing better holding hand feeling for the user.

[0010] In addition, since the folding screen device can be folded twice, the screen ratio of the folding screen device in the unfolded state can better match various scenes.

[0011] In combination with the first aspect, in some implementations of the first aspect, the thickness of the third housing is greater than the thickness of the first housing and / or the thickness of the second housing, and the thickness of the first housing is different from the thickness of the second housing, including:

[0012] The thickness of the third housing is greater than the thickness of the second housing, the thickness of the second housing is greater than the thickness of the first housing; or the thickness of the third housing is equal to the thickness of the second housing, the thickness of the second housing is greater than the thickness of the first housing; or the thickness of the third housing is greater than the thickness of the second housing, and the thickness of the third housing is equal to the thickness of the first housing.

[0013] In combination with the first aspect, in some implementations of the first aspect, the first housing and the third housing are both wedge-shaped.

[0014] According to the embodiments of the present application, the first housing and the third housing are wedge-shaped, and the folding screen device has better hand feeling.

[0015] In combination with the first aspect, in some implementations of the first aspect, the thickness of the first housing near one end of the first hinge is less than the thickness of the first housing away from the other end of the first hinge, and the thickness of the third housing near one end of the second hinge is less than the thickness of the third housing away from the other end of the second hinge.

[0016] In combination with the first aspect, in some implementations of the first aspect, the thickness of the first housing near one end of the first hinge is greater than the thickness of the first housing away from the other end of the first hinge, and the thickness of the third housing near one end of the second hinge is greater than the thickness of the third housing away from the other end of the second hinge.

[0017] With reference to the first aspect, in some implementations of the first aspect, the folding screen device includes at least one front camera module; the interior of the first shell, and / or the interior of the second shell, and / or the interior of the third shell is used to mount the front camera module.

[0018] With reference to the first aspect, in some implementations of the first aspect, the interior of the first shell includes a first battery, the interior of the second shell includes a second battery, and the interior of the third shell includes a third battery, a mainboard, a rear camera module, and an FPC of the flexible screen.

[0019] According to the embodiments of the present application, the stacking mode of the components in the folding screen device is relatively simple. Moreover, the FPC of the flexible screen and the mainboard are arranged in the same shell, which can avoid the FPC of the flexible screen from penetrating the shaft, and further simplifies the internal structure of the folding screen device.

[0020] With reference to the first aspect, in some implementations of the first aspect, the interior of the first shell includes a first speaker, and the interior of the third shell includes a second speaker.

[0021] According to the embodiments of the present application, by arranging multiple speakers, stereo sound can be achieved.

[0022] With reference to the first aspect, in some implementations of the first aspect, the frame of the third shell, the upper frame of the second shell, and the lower frame of the second shell are used to mount multiple antennas.

[0023] With reference to the first aspect, in some implementations of the first aspect, the interior of the first shell includes a first magnet, the interior of the second shell includes a second magnet and an electric device, the interior of the third shell includes a third magnet, and the folding screen device further includes a switch; the switch is used to drive the second magnet to move by the electric device, so that the first magnet and the second magnet repel each other, and the second magnet and the third magnet repel each other, so that the folding screen device is unfolded from the folded state to a Z-shaped form.

[0024] According to the embodiments of the present application, by arranging magnets in the shells, the electrically-driven unfolding of the folding screen device can be achieved, thereby providing a better experience for users.

[0025] With reference to the first aspect, in some implementations of the first aspect, the first hinge is an outer folding hinge, and the second hinge is an inner folding hinge; the flexible screen includes a first flat portion, a second flat portion, and a third flat portion, the first flat portion is connected with the first shell, the second flat portion is connected with the second shell, and the third flat portion is connected with the third shell; the thickness of the first flat portion is greater than the thickness of the second flat portion and the thickness of the third flat portion.

[0026] According to an embodiment of the present application, the flat portions of the flexible screen can be of different thicknesses. For example, the thickness of the first flat portion can be greater than the thickness of the second flat portion, and greater than the thickness of the third flat portion, thereby improving the performance of the first flat portion in the folded state. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 A folding screen device according to the present application is shown.

[0028] Figure 2 A form of folding screen device.

[0029] Figure 3 Various support states of the folding screen device are shown.

[0030] Figure 4 Various shapes of the flexible screen at the inner folding hinge in the folded state are shown.

[0031] Figure 5 The thickness relationship between various components of the flexible screen is shown.

[0032] Figure 6 The thickness relationship between the first housing, the second housing, and the third housing is shown.

[0033] Figure 7 A case in which the housings are wedge-shaped is shown.

[0034] Figure 8 A case in which the housings are wedge-shaped is shown.

[0035] Figure 9 The arrangement of the front camera module of the folding screen device is shown.

[0036] Figure 10 A way of using the front camera module for (c) in Figure 9 is shown.

[0037] Figure 11 The raised and recessed portions related to the installation of the front camera module are shown.

[0038] Figure 12 The partial internal structure of the folding screen device is shown.

[0039] Figure 13 The partial internal structure of the third housing is shown.

[0040] Figure 14 The principle of electrically unfolding is shown.

[0041] Figure 15 The way in which the folding screen device combines electrically unfolding and manually unfolding is shown.

[0042] Figure 16 The structure at the inner folding hinge in the unfolded state of the folding screen device is shown.

[0043] Figure 17 The structure at the outer folding hinge in the unfolded state of the folding screen device is shown. DETAILED DESCRIPTION

[0044] The embodiments of the present application are described in detail below, and it can be understood that the embodiments described by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation to the present application.

[0045] In the description of the present application, it should be understood that the terms "first", "second", "third" and the like are only for the purpose of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0046] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "side", "inner", "outer", "horizontal", "vertical" and the like indicate the orientation or positional relationship based on the installation, and are only for the convenience of describing the present application, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation to the present application.

[0048] The embodiments of the present application provide a folding screen device capable of being folded multiple times, which can be any device with communication and / or storage functions, for example, it can be a mobile phone, a tablet computer, a watch, an e-reader, a notebook computer, a vehicle-mounted device, a network television, a wearable device, etc. Smart device.

[0049] The folding screen device proposed in the present application will be described in detail below with reference to the accompanying drawings.

[0050] For the convenience of description, the folding screen device which can be folded twice is taken as an example for description. At this time, the folding screen device can be folded into 3 layers.

[0051] Specifically, as Figure 1As shown, the foldable screen device includes a first housing 100, a second housing 200, a third housing 300, a first hinge 400, a second hinge 500, and a flexible screen 600. The opposite ends of the first hinge 400 are connected to the first housing 100 and the second housing 200, respectively. The opposite ends of the second hinge 500 are connected to the second housing 200 and the third housing 300, respectively. The flexible screen 600 is connected to the first housing 100, the second housing 200, and the third housing 300.

[0052] The flexible screen 600 may include a first flattening part 601, a second flattening part 602, a third flattening part 603, a first bending part 604, and a second bending part 605. The first flattening part 601 is connected to the first housing 100, the second flattening part 602 is connected to the second housing 200, and the third flattening part 603 is connected to the third housing 300.

[0053] The first hinge 400 can deform, causing the first housing 100 to fold or unfold relative to the second housing 200, and the second hinge 500 can deform, causing the second housing 200 to fold or unfold relative to the third housing 300.

[0054] like Figure 2 As shown, the included angle between the first housing 100 and the second housing 200 can be denoted as α. If α = 0°, the first housing 100 and the second housing 200 are in a folded state. In some embodiments, when the first housing 100 and the second housing 200 are in a folded state, the included angle between them may deviate slightly from 0°, for example, by 15°, 25°, etc. If α = 180°, the first housing 100 and the second housing 200 are in an unfolded state. In some embodiments, when the first housing 100 and the second housing 200 are in an unfolded state, the included angle between them may deviate slightly from 180°, for example, by 165°, 177°, or 185°, etc. If the angle between the first housing 100 and the second housing 200 is between the angle range of the folded state and the unfolded state, the first housing 100 and the second housing 200 are not fully folded, or the first housing 100 and the second housing 200 are not fully unfolded, or the first housing 100 and the second housing 200 are in a transitional state from the folded state to the unfolded state.

[0055] Similarly, the angle between the second housing 200 and the third housing 300 can be denoted as β. If β = 0°, the second housing 200 and the third housing 300 are in a folded state. In some embodiments, when the second housing 200 and the third housing 300 are in a folded state, the angle between them may deviate slightly from 0°, for example, by 15°, 25°, etc. If β = 180°, the second housing 200 and the third housing 300 are in an unfolded state. In some embodiments, when the second housing 200 and the third housing 300 are in an unfolded state, the angle between them may deviate slightly from 180°, for example, by 165°, 177°, or 185°, etc. If the angle between the second housing 200 and the third housing 300 is between the angle range of the folded state and the unfolded state, the second housing 200 and the third housing 300 are not fully folded, or the second housing 200 and the third housing 300 are not fully unfolded, or the second housing 200 and the third housing 300 are in a transitional state from the folded state to the unfolded state.

[0056] It is understandable that, for this foldable screen device, if the first housing 100 and the second housing 200 are in a folded state, and the second housing 200 and the third housing 300 are in a folded state, the foldable screen device is in a folded state. If the first housing 100 and the second housing 200 are in an unfolded state, and the second housing 200 and the third housing 300 are in an unfolded state, the foldable screen device is in an unfolded state. If the foldable screen device is in a state between folding and unfolding, it can be considered that the foldable screen device is not fully folded, or that the foldable screen device is not fully unfolded, or that the foldable screen device is in a transitional state between folding and unfolding.

[0057] According to the embodiments of this application, the foldable screen device can be folded twice, so that the screen ratio of the foldable screen device in the unfolded state can be better adapted to various application scenarios.

[0058] The hinge of this foldable screen device will be explained first below.

[0059] In one configuration, the first hinge 400 is an outward-folding hinge, and the second hinge 500 is an inward-folding hinge. In this configuration, as... Figure 3 As shown, when the first housing 100 and the second housing 200 are in a folded state (e.g., α = 0°), and the second housing 200 and the third housing 300 are in a transitional state from the folded state to the unfolded state (e.g., β = 135°), the support state #1 can be formed.

[0060] Alternatively, when the first housing 100 and the second housing 200 are in the unfolded state (e.g., a = 180°), the second housing 200 and the third housing 300 are in the transition state from the folded state to the unfolded state (e.g., b = 135°), and the first housing 100 and the second housing 200 are placed horizontally, a stand state #2 can be formed.

[0061] Alternatively, when the first housing 100 and the second housing 200 are in the unfolded state (e.g., a = 180°), the second housing 200 and the third housing 300 are in the transition state from the folded state to the unfolded state (e.g., b = 135°), and the third housing 300 is placed horizontally, a stand state #3 can be formed.

[0062] It can be understood that the flexible screen can be folded outward by the outward folding hinge, and the flexible screen is exposed after being folded. The flexible screen can be folded inward by the inward folding hinge, and the flexible screen is hidden after being folded.

[0063] Specifically, as shown in Figure 2 if the first housing 100 and the second housing 200 are connected by the outward folding hinge, and the second housing 200 and the third housing 300 are connected by the inward folding hinge, when the folding screen device is in the folded state, the first flat part 601 and the first bending part 604 of the flexible screen 600 are exposed, and the second flat part 602 and the third flat part 603 of the flexible screen 600 are hidden.

[0064] As another way, the first hinge 400 is an inward folding hinge, and the second hinge 500 is an outward folding hinge. Similarly, in this way, the folding screen device can also form various stand states, which will not be described here.

[0065] It can be understood that the first hinge 400 and the second hinge 500 can have corresponding structures according to product needs, so as to realize the folding and unfolding of the flexible screen 600.

[0066] Exemplarily, the first hinge 400 and the second hinge 500 can both be symmetrical hinges. For example, the first hinge 400 can be a symmetrical door plate outward folding hinge, and the second hinge 500 can be a symmetrical inward folding hinge.

[0067] As shown in Figure 4 (a), for the symmetrical inward folding hinge, the shape of the flexible screen 600 in the folded state can be a water drop shape.

[0068] Alternatively, the inward folding hinge can also be a golf hinge. At this time, as shown in Figure 4 (b), the shape of the flexible screen 600 in the folded state can be a golf shape.

[0069] Alternatively, the inner folding hinge can also be an asymmetric hinge. At this time, as shown in (c) of Figure 4 In the folded state, the flexible screen 600 can have an asymmetric drop shape (or a biased drop shape), as shown in (c) of

[0070] Next, the flexible screen of the folding screen device is introduced.

[0071] In the embodiments of the present application, the first shell 100, the second shell 200 and the third shell 300 can all serve as the carrier of the flexible screen 600.

[0072] For the convenience of description, the normal direction of the flexible screen 600 is taken as the thickness direction.

[0073] In the embodiments of the present application, as an implementation manner, the thickness of the first flat part 601, the thickness of the second flat part 602 and the thickness of the third flat part 603 can be the same.

[0074] As another implementation manner, the flat parts of the flexible screen 600 can have different thicknesses. Taking the first hinge 400 as an outer folding hinge and the second hinge 500 as an inner folding hinge as an example, in combination with Figure 2 and Figure 5 Since the first flat part 601 needs to be folded outward in the folded state, in order to improve the performance of the first flat part 601 in the folded state, the thickness of the first flat part 601 can be greater than the thickness of the second flat part 602 and greater than the thickness of the third flat part 603. For example, a support layer can be added in the screen of the first flat part 601 to increase the thickness of the first flat part 601.

[0075] In addition, optionally, in order to improve the anti-falling performance (i.e. anti-dropping performance) and reliability of the first bending part 604 in the folded state, a buffer layer can be added in the screen of the first bending part 604.

[0076] Next, the thickness of the first shell 100, the second shell 200 and the third shell 300 is described.

[0077] As shown in (a) of Figure 6 The first shell 100 includes a first top surface 101 and a first back surface 102, which are respectively located at opposite ends in the thickness direction. In the thickness direction, the distance from a certain position on the first top surface 101 to the corresponding position on the first back surface 102 can be referred to as the thickness of the first shell 100 at that position.

[0078] Similarly, the second housing 200 includes a second top surface 201 and a second back surface 202, which are located at opposite ends in the thickness direction. In the thickness direction, the distance from a certain position on the second top surface 201 to a corresponding position on the second back surface 202 can be referred to as the thickness of the second housing 200 at that position.

[0079] The third housing 300 includes a third top surface 301 and a third back surface 302, which are located at opposite ends in the thickness direction. In the thickness direction, the distance from a certain position on the third top surface 301 to the corresponding position on the third back surface 302 can be referred to as the thickness of the third housing 300 at that position.

[0080] In this embodiment, the thickness of the third housing 300 is greater than the thickness of the first housing 100 and / or the thickness of the second housing 200. The thickness of the housing can be understood as the thickness of the housing as a whole, or the average thickness of the housing at various locations.

[0081] First scenario:

[0082] Taking the first shell 100 having the same thickness at all positions, the second shell 200 having the same thickness at all positions, and the third shell 300 having the same thickness at all positions as an example.

[0083] Scenario 1:

[0084] like Figure 6 As shown in (b), the thickness of the third shell 300 is greater than the thickness of the second shell 200, and the thickness of the second shell 200 is greater than the thickness of the first shell 100. That is, the thickness relationship of the third shell 300, the second shell 200, and the first shell 100 can be thick-medium-thin.

[0085] In this configuration, the foldable screen device may include two batteries, one housed inside the second housing 200 and the other inside the third housing 300. Since no battery is housed inside the first housing 100, the first housing 100 can be made thinner, thereby reducing the thickness of the foldable screen device in its folded state.

[0086] Scenario 2:

[0087] like Figure 6 As shown in (c), the thickness of the third shell 300 is greater than the thickness of the second shell 200, and the thickness of the second shell 200 is equal to the thickness of the first shell 100. That is, the thickness relationship of the third shell 300, the second shell 200, and the first shell 100 can be thick-medium-medium.

[0088] In this scenario, the foldable screen device may include three batteries, each housed inside one of the three housings. Compared to scenario 1, in scenario 2, a battery is also housed inside the first housing 100, thereby improving the battery life of the foldable screen device.

[0089] Scenario 3:

[0090] like Figure 6 As shown in (d), the thickness of the third shell 300 is equal to the thickness of the second shell 200, and the thickness of the second shell 200 is greater than the thickness of the first shell 100. That is, the thickness relationship of the third shell 300, the second shell 200, and the first shell 100 can be thick-thick-thin.

[0091] In this case, the foldable screen device may include two batteries, respectively located inside the second housing 200 and the third housing 300.

[0092] Scenario 4:

[0093] like Figure 6 As shown in (e), the thickness of the third housing 300 is greater than the thickness of the second housing 200, and the thickness of the third housing 300 is equal to the thickness of the first housing 100. That is, the thickness relationship of the third housing 300, the second housing 200, and the first housing 100 can be thick-thin-thick.

[0094] In this case, the foldable screen device may include two batteries, respectively located inside the first housing 100 and the third housing 300.

[0095] The second scenario:

[0096] At least one of the three shells mentioned above is wedge-shaped. A wedge-shaped shell can be understood as a change in the thickness of the shell along the X direction.

[0097] As a way, such as Figure 7 As shown in (a), the thickness of the shell can change smoothly and continuously along the X direction. In this case, the rate of change of thickness can be kept basically constant. If the coordinates of each position of the shell and the corresponding thickness are used as variables to construct a thickness curve, the thickness curve is a straight line.

[0098] Taking the first shell 100 and the third shell 300 as an example, which are wedge-shaped.

[0099] Scenario 1:

[0100] like Figure 7As shown in (b), the thickness of the end of the first housing 100 near the first hinge 400 is less than the thickness of the end of the first housing 100 away from the first hinge 400, and the thickness of the end of the third housing 300 near the second hinge 500 is less than the thickness of the end of the third housing 300 away from the second hinge 500.

[0101] Scenario 2:

[0102] like Figure 7 As shown in (c), the thickness of the end of the first housing 100 near the first hinge 400 is greater than the thickness of the end of the first housing 100 away from the first hinge 400, and the thickness of the end of the third housing 300 near the second hinge 500 is greater than the thickness of the end of the third housing 300 away from the second hinge 500.

[0103] According to embodiments of this application, the first and third housings are configured in a wedge shape, resulting in a better feel for the foldable screen device. Furthermore, compared to... Figure 7 In (b), if adopted Figure 7 As shown in scheme (c), the feel of the foldable screen device will be further improved, and the front camera module can be positioned away from the hinge so that the front camera module does not conflict with the hinge's pivot space.

[0104] As another way, such as Figure 8 As shown in (a), the thickness of the shell can also change abruptly along the X direction.

[0105] like Figure 8 As shown in (b) and (c), assuming that the first hinge 400 is an inward hinge, the second hinge 500 is an outward hinge, and the thickness of the third housing 300 changes abruptly, one or more of the following can be arranged in the relatively thick area of ​​the third housing 300: a front camera module, a rear camera module, a battery, and a charging interface, while a motherboard can be arranged in the relatively thin area of ​​the third housing 300.

[0106] Next, we will introduce the front-facing camera module of this foldable screen device.

[0107] The foldable screen device includes at least one front-facing camera module. The interior of the first housing, and / or the interior of the second housing, and / or the interior of the third housing may be used to mount the front-facing camera module.

[0108] Alternatively, the front-facing camera module can be located in one or more of the first flat section 601, the second flat section 602, and the third flat section 603 of the flexible screen 600.

[0109] The following section uses the first hinge 400 as an outward-folding hinge and the second hinge 500 as an inward-folding hinge as an example to introduce several possible arrangements of the front-facing camera module in this foldable screen device. The shape of the flexible screen cutout corresponding to the front-facing camera module can be circular, square, or capsule-shaped (also known as pill-shaped or racetrack-shaped), and this application does not limit this.

[0110] Method 1:

[0111] like Figure 9 As shown in (a), the front-facing camera module can be positioned on the first flat section 601. In this case, the front-facing camera module can be used when the foldable screen device is in a folded state; or, it can be used... Figure 3 The front camera module is used in bracket configuration #3 as shown.

[0112] Specifically, the front-facing camera module can be positioned at any location on the first flat portion 601. In one embodiment, the front-facing camera module can be positioned at the upper right corner or the middle of the upper end of the first flat portion 601, thereby avoiding any conflict between the front-facing camera module and the pivot space of the first hinge.

[0113] Method 2:

[0114] like Figure 9 As shown in (b), the front-facing camera module can be mounted on the second flat section 602. In this case, the front-facing camera module can be used when the foldable screen device is in the unfolded state.

[0115] Specifically, the front-facing camera module can be positioned at any location on the second flat portion 602. In one embodiment, the front-facing camera module can be positioned at the upper center of the second flat portion 602. Compared to positioning the front-facing camera module at the upper left or upper right corner of the second flat portion 602, this application positions the front-facing camera module away from the first and second hinges, thus avoiding conflicts between the front-facing camera module and the pivot space of the first and second hinges.

[0116] Method 3:

[0117] like Figure 9 As shown in (c), the front-facing camera module can be positioned on the third flat section 603. At this time, it is possible to... Figure 3 The front camera module is used in bracket states #1 and #2 as shown.

[0118] Specifically, the front camera module can be arranged at any position of the third flat portion 603. For example, the front camera module can be arranged at the upper left corner of the third flat portion 603, or at the middle of the upper end of the third flat portion 603, so as to avoid the conflict between the front camera module and the rotation shaft space of the second hinge.

[0119] Optionally, for the mode 3, in order to use the front camera module in the case shown in (c) of Figure 1 Figure 10 Optionally, for the mode 3, in order to use the front camera module in the case shown in (c) of Figure 10 Optionally, for the mode 3, in order to use the front camera module in the case shown in (c) of

[0120] Specifically, the folding screen device can include a processing module. For example, when the user performs video call or the user performs selfie, a corresponding instruction (or electrical signal) can be triggered, and the processing module can set the area #1 and the area #2 to be transparent according to the instruction.

[0121] Optionally, the flexible screen 600 can be an organic light-emitting diode (OLED) screen.

[0122] Mode 4:

[0123] As shown in (d) of Figure 9 As shown in (d) of

[0124] It can be understood that the arrangement mode of the front camera module is not limited to the above-mentioned four modes, for example, the front camera module can also be arranged on the first flat portion 601, the second flat portion 602 and the third flat portion 603.

[0125] In addition, optionally, considering that the front camera module of some models has a large size in the thickness direction, as a manner, a corresponding protruding part can be arranged on the shell to mount the front camera module. In order to reduce the thickness of the whole machine, correspondingly, a recessed part can be arranged on the other shell.

[0126] For example, as shown in Figure 11 , when the front camera module is arranged on the first shell 100 and the first shell 100 and the second shell 200 are connected through the outer folding hinge, a protruding part can be arranged on the first shell 100, and a recessed part can be arranged at the corresponding position of the second shell 200. It can be understood that in the folded state, the protruding part can be folded into the recessed part.

[0127] As another manner, if the shell is arranged in a wedge shape, the front camera module can be mounted at the position where the shell is thicker.

[0128] For example, for the case shown in (b) of Figure 7 , when the front camera module is mounted on the first shell 100, the front camera module can be mounted on the side of the first shell 100 away from the first hinge 400; when the front camera module is mounted on the third shell 300, the front camera module can be mounted on the side of the third shell 300 away from the second hinge 500.

[0129] For the case shown in (c) of Figure 7 , when the front camera module is mounted on the first shell 100, the front camera module can be mounted on the side of the first shell 100 close to the first hinge 400; when the front camera module is mounted on the third shell 300, the front camera module can be mounted on the side of the third shell 300 close to the second hinge 500.

[0130] The partial internal structure of the folding screen device will be described below.

[0131] As a manner of implementation, as shown in Figure 12 , the mainboard 303 and the rear camera module 304 are arranged inside the third shell 300. Taking the folding screen device including three batteries as an example, the first battery 103 is arranged inside the first shell 100, the second battery 203 is arranged inside the second shell 200, and the third battery 305 is arranged inside the third shell 300. The flexible circuit board (flexible printed circuit, FPC) (not shown in Figure 12 ) of the flexible screen 600 can also be arranged inside the third shell 300.

[0132] It can be understood that the application does not limit the size of the first battery 103, the second battery 203 and the third battery 305. The sizes of the three batteries can be the same or different. As a possible case, the thickness of the battery can match the thickness of the shell. That is, the greater the thickness of the battery, the greater the thickness of the shell can be correspondingly.

[0133] Optionally, the folding screen device can have only two batteries. The sizes of the two batteries can be the same or different.

[0134] Alternatively, the folding screen device can have only one battery, for example, only a battery is arranged inside the third shell 300.

[0135] It should be understood that if the FPC of the flexible screen 600 and the mainboard 303 are arranged in different shells, the FPC of the flexible screen 600 needs to pass through the hinge (or cross the shaft) when connected with the mainboard 303, thereby increasing the complexity of the internal structure. In comparison, the FPC of the flexible screen 600 and the mainboard 303 are arranged in the third shell 300 in the embodiments of the application, and the FPC of the flexible screen 600 can be connected with the mainboard 303 in the third shell 300, thereby avoiding crossing the shaft.

[0136] In the embodiments of the application, the mainboard 303 can be arranged in an L shape, and the mainboard 303 and the third battery 305 can be arranged in a left-right layout inside the third shell 300.

[0137] It can be understood that the system on chip (SoC) chip 306 can be electrically connected with the mainboard 303. As an implementation manner, the SoC chip 306 is arranged at a position away from the frame of the third shell 300. Moreover, the SoC chip 306 and the FPC of the flexible screen 600 do not overlap in the thickness direction, thereby reducing the thickness of the folding screen device and reducing the influence of heat generated by the SoC chip 306 on the flexible screen 600 when the SoC chip 306 works.

[0138] As an arrangement manner, as shown in Figure 13 Since the thickness of the rear camera module 304 is usually large, a raised plate for mounting the SoC chip can be arranged near the rear camera module 304, and the space below the raised plate can also be used to mount other devices, thereby saving internal space.

[0139] In addition, the folding screen device can also include at least one loudspeaker. When the folding screen device includes multiple loudspeakers, stereo sound can be achieved.

[0140] Taking the case that the folding screen device includes two loudspeakers as an example. As shown in Figure 12As shown, the first speaker 104 can be arranged inside the first housing 100, and the second speaker 307 can be arranged inside the third housing 300. The first speaker 104 and the second speaker 307 are respectively located at opposite ends. For example, the first speaker 104 is located at the upper end of the first housing 100, and the second speaker 307 is located at the lower end of the third housing 300.

[0141] The first speaker 104 can be connected to the mainboard 303 in the third housing 300 through an FPC (not shown in the figure). Figure 12 At this time, the FPC passes through the first hinge 400 and the second hinge 500.

[0142] The antenna arrangement of the folding screen device will be introduced below.

[0143] In the embodiments of the present application, a plurality of slits can be arranged on the frame of the third housing 300, and the plurality of slits are used to separate different antennas. For example, 7 slits can be arranged on the frame of the third housing 300.

[0144] In addition, optionally, slits can also be arranged on the frame of the first housing 100 and / or the frame of the second housing 200 to install antennas, so as to further improve the communication capability of the folding screen device. It can be understood that if the antennas are installed on the frame of the first housing 100 and / or the frame of the second housing 200, the antennas need to pass through the hinges (or need to cross the shafts) when they are electrically connected to the mainboard 303 in the third housing 300.

[0145] It can be understood that if the antennas are installed on the frame of the first housing 100, the antennas need to cross the shafts twice when they are electrically connected to the mainboard 303 in the third housing 300; if the antennas are installed on the frame of the second housing 200, the antennas need to cross the shaft once when they are electrically connected to the mainboard 303 in the third housing 300. Therefore, in order to reduce the number of times of crossing the shafts, the antennas can be arranged on the frame of the second housing. For example, as shown in the figure, the antennas can be arranged on the upper frame and the lower frame of the second housing 200 respectively. Figure 12

[0146] The opening and closing mode of the folding screen device will be introduced below.

[0147] Mode 1:

[0148] The user can unfold the folding screen device by hand, or fold the folding screen device by hand.

[0149] Mode 2:

[0150] The folding screen device is unfolded based on the combination of electric unfolding and manual unfolding. The folding screen device is folded based on the manual folding mode.

[0151] ​The electrically-driven expansion is based on magnetic poles. Specifically, when the magnetic poles of opposite polarity of two magnetic components face each other, the two magnetic components are attracted to each other; when the magnetic poles of the same polarity of two magnetic components face each other, the two magnetic components repel each other.

[0152] It should be understood that the magnetic components involved in the present application can be electromagnets, permanent magnets, and the like.

[0153] The following will be described in detail Figure 14 The present application will be described in detail below.

[0154] (1) Magnetic pole attraction based on magnetic induction coils.

[0155] As shown in (a) of FIG. 1, Figure 14 includes three magnetic induction coils, specifically, each magnetic induction coil includes two magnetic pole faces (north (N) pole and south (S) pole).

[0156] As shown on the left side of (a) of FIG. 1, Figure 14 the first magnetic induction coil and the second magnetic induction coil are attracted to each other, and the second magnetic induction coil and the third magnetic induction coil are attracted to each other. If the first magnetic induction coil is arranged in the first shell, the second magnetic induction coil is arranged in the second shell, and the third magnetic induction coil is arranged in the third shell, then the first shell and the second shell are attracted to each other, and the second shell and the third shell are attracted to each other.

[0157] As shown on the right side of (a) of FIG. 1, Figure 14 by changing the current direction of the second magnetic induction coil, the first magnetic induction coil and the second magnetic induction coil can be repelled from each other, and the second magnetic induction coil and the third magnetic induction coil can be repelled from each other. If the first magnetic induction coil is arranged in the first shell, the second magnetic induction coil is arranged in the second shell, and the third magnetic induction coil is arranged in the third shell, then the first shell and the second shell are repelled from each other, and the second shell and the third shell are repelled from each other.

[0158] (2) Magnetic pole attraction based on magnets and electrically-driven mechanisms.

[0159] As shown in (b) of FIG. 1, Figure 14 includes three magnets, specifically, each magnet includes two magnetic pole faces (N pole and S pole).

[0160] As shown on the left side of (b) of FIG. 1, Figure 14 the first magnet and the second magnet are attracted to each other, and the second magnet and the third magnet are attracted to each other. If the first magnet is arranged in the first shell, the second magnet and the fourth magnet are arranged in the second shell, and the third magnet is arranged in the third shell, then the first shell and the second shell are attracted to each other, and the second shell and the third shell are attracted to each other.

[0161] like Figure 14 As shown on the right side of (b) in the diagram, the second and fourth magnets are driven by an electric mechanism, causing the first and fourth magnets to repel each other, and the fourth and third magnets to repel each other. If the first magnet is located in the first housing, the second and fourth magnets are located in the second housing, and the third magnet is located in the third housing, then the first and second housings repel each other, and the second and third housings repel each other.

[0162] like Figure 14 As shown in (c), it includes three magnets, specifically, each magnet includes two magnetic pole faces (N pole and S pole).

[0163] like Figure 14 As shown on the left side of (c) in the diagram, the first magnet and the second magnet attract each other, and the second magnet and the third magnet attract each other. If the first magnet is placed in the first housing, the second magnet is placed in the second housing, and the third magnet is placed in the third housing, then the first housing and the second housing attract each other, and the second housing and the third housing attract each other.

[0164] like Figure 14 As shown on the right side of (c) in the diagram, the second magnet is driven by an electric mechanism, causing the first magnet and the second magnet to repel each other, and the second magnet and the third magnet to repel each other. If the first magnet is located in the first housing, the second magnet is located in the second housing, and the third magnet is located in the third housing, then the first housing and the second housing repel each other, and the second housing and the third housing repel each other.

[0165] based on Figure 14 The principle shown in (c) is as follows: Figure 15 As shown, a first magnet 105 is disposed in the first housing 100, a second magnet 204 is disposed in the second housing 200, and a third magnet 308 is disposed in the third housing 300. Furthermore, a switch is disposed on this foldable screen device. Figure 15 (Not shown in the diagram). The first magnet 105 is fixed in position within the first housing 100, and the third magnet 308 is also fixed in position within the third housing 300. The second magnet 204 is connected to an electric mechanism. Exemplarily, this electric mechanism can also be located within the second housing 200. The switch is used to adjust the position of the second magnet 204 within the second housing 200 via this electric mechanism; that is, the position of the second magnet 204 within the second housing 200 can be changed. For example, when the line connecting the N and S poles of all three magnets is parallel to the X direction, the second magnet 204 can move along the X direction. As another example, when the line connecting the N and S poles of all three magnets is parallel to the Y direction, the second magnet 204 can move along the Y direction. Figure 15 Not shown.

[0166] In the folded state, the first magnet 105 and the second magnet 204 attract each other, and the second magnet 204 and the third magnet 308 attract each other.

[0167] like Figure 15 As shown, the user can control the electric mechanism via the switch, causing the electric mechanism to move the second magnet 204, thereby misaligning the position of the second magnet 204 with that of the first magnet 105 and the third magnet 308. After misalignment, the N pole of the first magnet faces the N pole of the second magnet, and the N pole of the second magnet faces the N pole of the third magnet; or, the S pole of the first magnet faces the S pole of the second magnet, and the S pole of the second magnet faces the S pole of the third magnet, thus unfolding the foldable screen device into a Z-shape through the repulsive magnetic force between the magnets. Furthermore, the user can manually unfold the foldable screen device.

[0168] For example, the switch can be a physical switch or a virtual switch. For instance, a physical switch can be provided on the third housing 300, which the user can use to unfold the foldable screen device into a Z-shape. Alternatively, a virtual switch can be provided in the outward folding hinge area, which the user can slide their finger on to unfold the foldable screen device into a Z-shape.

[0169] As one possible implementation, when the foldable screen device needs to be unfolded into a Z-shape, the user can trigger an electrical signal through the switch. This electrical signal can be transmitted to the motor through the processor, and the motor can then start working according to the electrical signal, thereby driving the second magnet 204 to move.

[0170] Understandably, combining electric and manual deployment methods can provide users with a better experience.

[0171] Furthermore, in the unfolded state, such as Figure 16 As shown, the mid-frames of the two shells on either side of the inward-folding hinge can be designed for a mating joint; as... Figure 17 As shown, the hinge cover of the outward folding hinge and the two shells on both sides of the outward folding hinge can be designed to be flush, so that the folding screen device is more beautiful and has a better feel when unfolded.

[0172] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A foldable screen device, characterized in that, The folding screen device comprises a first shell, a second shell, a third shell, a first hinge, a second hinge, a flexible screen, at least one front camera module, at least one rear camera module, a mainboard, a first speaker, a second speaker, a flexible circuit board FPC and a third battery. The opposite ends of the first hinge are connected with the first shell and the second shell respectively, the opposite ends of the second hinge are connected with the second shell and the third shell respectively, and the flexible screen is connected with the first shell, the second shell and the third shell respectively. The first hinge is an outer folding hinge capable of deforming, so that the first shell is folded or unfolded relative to the second shell, and the second hinge is an inner folding hinge capable of deforming, so that the second shell is folded or unfolded relative to the third shell. The flexible screen comprises a first flat part, a second flat part and a third flat part, the first flat part is connected with the first shell, the second flat part is connected with the second shell, and the third flat part is connected with the third shell, when the folding screen device is in a folded state, the first flat part of the flexible screen is exposed, and the second flat part and the third flat part of the flexible screen are hidden. The thickness of the third shell is greater than the thickness of the first shell and the thickness of the second shell. The at least one front camera module is arranged on the first shell, and the at least one rear camera module is arranged on the third shell. The first speaker is arranged on the first shell, the mainboard, the second speaker and the third battery are arranged in the third shell, the mainboard is arranged in an L shape and surrounds the third battery, the first speaker and the second speaker are located at opposite ends respectively, the first speaker is connected with the mainboard of the third shell through the flexible circuit board FPC, and the flexible circuit board FPC passes through the first hinge and the second hinge.

2. The folding screen device of claim 1, wherein, The thickness of the first shell is the same as the thickness of the second shell.

3. The folding screen device according to claim 1 or 2, characterized in that, The first speaker is located at the upper end of the first shell, and the second speaker is located at the lower end of the third shell.

4. The folding screen device according to claim 1 or 2, characterized in that, The folding screen device further comprises a first battery and a second battery, the first battery is arranged inside the first shell, and the second battery is arranged inside the second shell.

5. The folding screen device of claim 4, wherein, The second battery and the first battery are the same in size.

6. The folding screen device according to claim 1 or 2, characterized in that, The flexible circuit board FPC of the flexible screen is arranged in the third shell.

7. The folding screen device according to claim 1 or 2, wherein The flexible screen further comprises a first bending part and a second bending part, the first bending part is located between the first flat part and the second flat part, and the second bending part is located between the second flat part and the third flat part.

8. The folding screen device of claim 7, wherein, The screen of the first bending part has a buffer layer.

9. The folding screen device of claim 7, wherein, The thickness of the first flat part is greater than the thickness of the second flat part and the thickness of the third flat part.

10. The folding screen device of claim 7, wherein, When the folding screen device is in a folded state, the shape of the first bending part of the flexible screen is drop-shaped.

11. The folding screen device according to claim 1 or 2, characterized in that, The frame of the third shell, the upper frame of the second shell and the lower frame of the second shell are used for mounting a plurality of antennas.

12. The folding screen device according to claim 1 or 2, characterized in that, The first shell interior includes a first magnet, the second shell interior includes a second magnet, and the third shell interior includes a third magnet.

13. The folding screen device according to claim 1 or 2, characterized in that, The folding screen device further includes a chip, which is arranged in the third shell away from the position of the frame of the third shell and is electrically connected with the mainboard of the folding screen device.

14. The folding screen device of claim 13, wherein, The chip and the flexible circuit board (FPC) of the flexible screen do not overlap in the thickness direction.

15. The folded screen device of claim 1 or 2, wherein, Further comprising a raised plate installed in the third shell for installing the chip.

16. The folding screen device of claim 15, wherein, The raised plate is arranged near the rear camera module.

17. The folded screen device of claim 1 or 2, wherein, The front camera is arranged at the middle position of the upper end of the first shell.

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