Dual ink screen electronic device

Abstract

The application relates to a double-ink-screen electronic device, which comprises a first screen, a second screen, a wire passer and one or more rotating shafts connected between the first screen and the second screen; the first screen comprises a first shell, a first ink-screen display module, a battery and a main circuit board, the first shell comprises a first inner cavity and a plurality of first supporting pieces arranged in the first inner cavity and used for supporting the first ink-screen display module; the second screen comprises a second shell, a second ink-screen display module and a secondary circuit board, the second shell comprises a second inner cavity and a plurality of second supporting pieces arranged in the second inner cavity and used for supporting the second ink-screen display module; the main circuit board and the secondary circuit board are connected with each other through a first wire that passes through the wire passer, and the first wire between the wire passer and the secondary circuit board does not bend in a plane parallel to the second screen. In the folding and unfolding process of the electronic device, the wire does not appear problems such as loosening or abnormal bending.

Description

Technical Field

[0001] This invention relates to the field of display devices, and particularly to a dual-e-ink screen electronic device. Background Technology

[0002] E-ink displays, leveraging their advantages such as paper-like eye protection, ultra-low power consumption, and electromagnetic handwriting interaction, are widely used in terminal products such as e-readers and office notebooks. With the increasing thinness and portability of terminal display devices, foldable e-ink displays are gradually gaining popularity. Foldable e-ink displays, with their dual-display module collaborative display advantage, can effectively expand the visual display area, offering a unique user experience of large-screen reading and split-screen operation on a single device.

[0003] Foldable e-ink displays typically consist of a first screen and a second screen that can rotate relative to each other. Each screen houses circuit boards, display components, batteries, and other electronic devices. To enable signal transmission or electrical connections between the two screens, flexible circuit boards or flexible ribbon cables are usually used to connect the electronic devices. However, current foldable e-ink display devices use curved ribbon cables, which may become loose or bend abnormally during repeated opening and closing of the device. Summary of the Invention

[0004] To address the technical problems existing in the prior art, this invention proposes a dual-e-ink screen electronic device, comprising: a first screen, a second screen, and a cable guide and one or more hinges connecting the first screen and the second screen; the first screen includes a first housing, a first e-ink screen display module, a battery, and a main circuit board, wherein: the first housing includes a first inner cavity and a plurality of first support members, the plurality of first support members being disposed in the first inner cavity for supporting the first e-ink screen display module; the plurality of first support members are separate from and / or connected to each other, defining a plurality of first regions; the battery and the main circuit board are respectively housed in the plurality of first regions; the second screen includes a second housing, a second e-ink screen display module, and a second e-ink screen display module. The display module and the sub-circuit board, wherein: the second housing includes a second inner cavity and a plurality of second support members, the plurality of second support members being disposed in the second inner cavity for supporting the second e-ink display module; the plurality of second support members being separate from and / or connected to each other, and defining a plurality of second regions; the sub-circuit board being housed in the plurality of second regions; wherein, the main circuit board is used for controlling the first screen and the second screen, and the sub-circuit board is used for the wiring of the second screen; the main circuit board and the sub-circuit board are interconnected by a first ribbon cable passing through the cable guide, and the first ribbon cable between the cable guide and the sub-circuit board does not bend in a plane parallel to the second screen.

[0005] As described above, in the dual-e-ink screen electronic device, the plurality of first regions include a battery region for accommodating the battery, a main circuit board region for accommodating the main circuit board, and a first connection region for accommodating the first display FPC cable and the first electromagnetic film controller; the battery region is disposed on one side of the first inner cavity, and the main circuit board region is located close to the first connection region and disposed on the other side of the first inner cavity.

[0006] In the dual-e-ink screen electronic device described above, the first connection area is located on one side of the first inner cavity, and the main circuit board area and the battery area are located side by side on the other side of the first inner cavity.

[0007] In the dual-e-ink screen electronic device described above, the first ribbon cable does not bend between the cable guide and the main circuit board.

[0008] In the dual-e-ink screen electronic device described above, the first ribbon cable includes a buffer portion, which is entirely disposed in the second screen.

[0009] As described above, in the dual-e-ink screen electronic device, the first ribbon cable passes over the battery and enters the cable guide, extending in a straight line between the cable guide and the sub-circuit board; the first screen further includes a charging interface near the edge of the first inner cavity, the main circuit board is electrically connected to the charging interface via a first connecting line, and the first connecting line passes over the battery.

[0010] In the dual-e-ink screen electronic device described above, the battery occupies half or more of the total area of ​​the first cavity in the first screen.

[0011] As described above, in the dual e-ink screen electronic device, the first housing further includes an adjoining area connected to the main circuit board area, which is used to accommodate electronic components associated with the main circuit board.

[0012] As described above, in the dual-e-ink screen electronic device, the second screen includes multiple buttons and a button board, and the sub-circuit board is electrically connected to the button board via a second connecting line.

[0013] In the dual-e-ink screen electronic device described above, the first support member and / or the second support member are one or more of rigid or elastic ribs, frames, perforated plates, columns, or particles.

[0014] This application, by adjusting the connection cable between the cable guide and the sub-circuit board, can prevent problems such as loosening or abnormal bending of the cable during folding and opening. Attached Figure Description

[0015] The preferred embodiments of the present invention will now be described in further detail with reference to the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the structure of a dual-e-ink screen electronic device according to an embodiment of this application; Figure 2 An exploded view of a dual-e-ink screen electronic device according to an embodiment of this application; Figure 3 This is an internal structural diagram of a dual-e-ink screen electronic device according to an embodiment of this application; Figure 4 This is a schematic diagram of a first housing structure according to an embodiment of this application; Figure 5 This is a schematic diagram of a second housing structure according to an embodiment of this application; Figure 6 This is a schematic diagram of the back of a second e-ink display module according to an embodiment of this application; Figure 7 This is a partial cross-sectional view of a dual-e-ink screen electronic device according to an embodiment of this application; Figure 8 This is an internal structural diagram of a dual-e-ink screen electronic device according to another embodiment of this application; Figure 9 This is a schematic diagram of a first housing structure according to another embodiment of this application; Figure 10 This is a schematic diagram of the back of a first e-ink display module according to another embodiment of this application; Figure 11 This is a schematic diagram of the internal structure of a dual-screen display device in the prior art. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] In the following detailed description, reference can be made to the accompanying drawings, which form part of this application and illustrate specific embodiments of the present application. In the drawings, similar reference numerals describe substantially similar components in different figures. Specific embodiments of the present application are described in sufficient detail below to enable those skilled in the art to implement the technical solutions of the present application. It should be understood that other embodiments may also be utilized, or structural, logical, or electrical changes may be made to the embodiments of the present application.

[0018] The term "bend" in this article refers to a flex cable or connecting line that rotates within a plane parallel to the first or second screen to form an angle. It should be noted that the buffer section is formed by the flex cable contracting and folding along its extension direction and is not considered a "bend" as defined in this article. The "bend" mentioned in this article refers to a fixed bend, meaning that the bent portion of the dual-e-ink screen electronic device does not move during the folding and opening process. The term "abnormal bend" mentioned in this article refers to an active bend where the flex cable or connecting line undergoes an unexpected folding deformation within the plane during the opening and closing process of the first and second screens.

[0019] During the opening and closing of a foldable e-ink display device, the relative positions of the first and second screens constantly change. The ribbon cable needs to cross the connection area between the two screens and stretch or retract as the screens fold and unfold. Therefore, the ribbon cable usually needs to have a certain length allowance to accommodate the path changes during the opening and closing process. (Reference) Figure 11 , Figure 11 This is a schematic diagram of the internal structure of a foldable electronic device in the prior art. The prior art foldable e-ink screen device 1 includes a first body 2 and a second body 3 capable of relative rotation, connected by a hinge assembly 4 and a wiring channel 5. A first circuit board 6 is disposed within the first body 2, and a second circuit board 7 is disposed within the second body 3. The first circuit board 6 and the second circuit board 7 are electrically connected via a ribbon cable 8, which extends from the first circuit board 6 in the first body 2, passes through the wiring channel 5, and enters the second body 3. The ribbon cable 8 includes bends 9 between the wiring channel 5 and the second circuit board 7, and between the wiring channel 5 and the first circuit board 6. That is, after passing through the wiring channel 5, the ribbon cable 8 does not directly connect to the first circuit board 6 and the second circuit board 7 in a straight line, but rotates at a certain angle (e.g., 90 degrees) in a plane parallel to the second body 3 before connecting to the first circuit board 6 and the second circuit board 7.

[0020] Because the ribbon cable 8 is designed to accommodate the length changes of the first body 2 and the second body 3 during the opening and closing process, the ribbon cable 8 is not fixed in at least one of the first or second bodies. That is, at least one bend 9 is a movable bend, which will move with the stretching or retraction of the ribbon cable during the opening and closing of the first body 2 and the second body 3. During the long-term repeated opening and closing of the folding e-ink screen device, with the stretching or retraction of the ribbon cable, problems such as abnormal bending, insulation wear, wire breakage, or unstable signal transmission are very likely to occur at the bend 9.

[0021] This application proposes a new dual-e-ink screen electronic device, which, by optimizing the ribbon cable connection method, can avoid problems such as abnormal bending, insulation wear, line breakage, or unstable signal transmission during the folding and opening process of the ribbon cable.

[0022] The technical solution of this application will be further illustrated below through specific implementation methods. Those skilled in the art should understand that the following description is merely for the convenience of understanding the technical solution of this application and should not be used to limit the scope of protection of this application.

[0023] Figure 1 This is a schematic diagram of the structure of a dual-e-ink screen electronic device according to an embodiment of this application. Figure 2 This is an exploded view of a dual-e-ink screen electronic device according to an embodiment of this application. Figure 3 This is an internal structural diagram of a dual-e-ink screen electronic device according to an embodiment of this application.

[0024] like Figures 1 to 3 As shown, the dual-e-ink screen electronic device (hereinafter referred to as the "electronic device") 10 includes a first screen 100, a second screen 200, one or more hinges 300, and a cable guide 400. The one or more hinges 300 and the cable guide 400 are connected between the first screen 100 and the second screen 200, thereby allowing the dual-e-ink screen electronic device to be stacked or unfolded. When the dual-e-ink screen electronic device is in the unfolded state, the first screen and the second screen are on the same plane; when the dual-e-ink screen electronic device is in the stacked state, the first screen and the second screen completely overlap. In some embodiments, the thickness of the first screen 100 and / or the second screen 200 does not exceed 6 mm.

[0025] In some embodiments, the first screen 100 includes a first housing 110 and a first e-ink display module 120. The first housing 110 includes a first inner cavity 111, and the first e-ink display module 120 is disposed within the first inner cavity and can be used to display content. In some embodiments, the first e-ink display module 120 may be a flexible display module.

[0026] refer to Figure 4 , Figure 4 This is a schematic diagram of a first housing structure according to an embodiment of the present application. In some embodiments, the first housing 110 may include a first base plate 112 and a first side plate 113, wherein the first side plate 113 is fixedly disposed on the periphery of the first base plate 112 and extends to one side of the first base plate, and the first side plate 113 and the first base plate 112 together form a first inner cavity 111 with one end open, which can be used to accommodate a first e-ink display module.

[0027] In some embodiments, the first housing 110 includes a plurality of first support members 114 disposed in the first inner cavity 111 for supporting the first e-ink display module. In some embodiments, the first support member 114 may be a rigid rib, which may be fixedly disposed on the first base plate 112 and extend into the first inner cavity 111. In some embodiments, the first support member 114 may also be an elastic rib, which may cushion the first e-ink display module and reduce the damage rate of the first e-ink display module when the dual e-ink electronic device is dropped. In some embodiments, the first support member may also be other structures, such as rigid or elastic frames, perforated plates, columns, or particles.

[0028] In some embodiments, multiple first support members 114 are interconnected or separately disposed in the first inner cavity, which can divide the first inner cavity into multiple first regions, which can be used to accommodate the electronic components of the dual e-ink screen electronic device. According to one embodiment of this application, the multiple first regions may include: a battery region 115, a main circuit board region 116, and a first connection region 117 with the first e-ink screen display module. In some embodiments, the battery region 115 is disposed on the lower side of the first inner cavity, and the main circuit board region 116 and the first connection region 117 are disposed on the upper side of the first inner cavity, wherein the main circuit board region 116 is located away from the upper side of the first inner cavity relative to the first connection region 117. In some embodiments, the battery region 115 occupies at least 50% of the total area of ​​the first inner cavity. The above-mentioned partitioned layout defines each functional area through the integrated support members, so that the battery, main circuit board, and display connection components form an orderly spatial arrangement in the first inner cavity, which is beneficial to improving the utilization of internal space, facilitating the positioning and fixing of each electronic component during assembly, and reducing signal interference between components.

[0029] In some embodiments, the plurality of first regions may further include: an adjacent region 118, which may be connected to the main circuit board region and may be used to accommodate electronic components associated with the main circuit board. In some embodiments, the adjacent region 118 may be disposed on two adjacent sides of the main circuit board region and together with the first connection region 117, surround the main circuit board region, such that one side of the main circuit board region 116 is close to the edge of the first inner cavity, and the adjacent region may be used to accommodate electronic components associated with the main circuit board or the connection portion between the main circuit board and the electronic components. In some embodiments, the adjacent region 118 may also be disposed near the lower side of the first inner cavity, and the electronic components disposed in the adjacent region may be connected to the main circuit board through the two sides of the battery region or across the battery region.

[0030] In some embodiments, the first screen 100 may further include a main circuit board 130, which may be disposed in the main circuit board area 116 of the first housing and may be used for controlling the first screen and the second screen. In some embodiments, the first screen 100 may further include a battery 140, which may be disposed in the battery area 115 of the first housing and may be connected to the main circuit board to provide power to electronic devices.

[0031] In some embodiments, the first e-ink display module 120 may include: a first display FPC cable 121, which may be disposed in the first connection area 117 of the first housing and connected to the main circuit board, and can be used to output display content to the first e-ink display module 120. In some embodiments, the first e-ink display module 120 may include: a first electromagnetic membrane controller 122, which may be disposed in the first connection area 117 of the first housing and connected to the main circuit board, and can be used to detect input content of the first e-ink display module 120. In some embodiments, the first display FPC cable 121 and the first electromagnetic membrane controller 122 may be disposed side by side in the first connection area 117. In some embodiments, the first display FPC cable 121 and the first electromagnetic membrane controller 122 may be fixedly disposed on the back of the first e-ink display module.

[0032] In some embodiments, the first screen 100 may further include a charging interface 150, which may be disposed on the lower edge of the first inner cavity and penetrate through the first side plate of the first housing. The charging interface 150 may be connected to the main circuit board and to an external power source to power electronic devices or charge batteries. In some embodiments, a first connecting line 151 is included between the charging interface 150 and the main circuit board, wherein the first connecting line 151 may pass through the top of the battery to connect the charging interface 150 and the main circuit board. That is, the first connecting line 151 is located between the battery and the first e-ink display module.

[0033] In some embodiments, the first screen 100 may further include a first cover 160, which can be fastened to the first inner cavity of the first housing and can fix the first e-ink display module in the first inner cavity. In some embodiments, the first cover 160 may be a face frame, which can press the first e-ink display module tightly from all sides. The middle area of ​​the face frame includes an opening, which can expose the middle display area of ​​the first e-ink display module, which helps to reduce the thickness and weight of the electronic device and facilitates the thinning of the electronic device. In some embodiments, the first cover 160 may also be a transparent cover plate, which presses the first e-ink display module on the first e-ink display module and fixes the first e-ink display module in the first inner cavity, which helps to make the surface of the electronic device flat and improves the aesthetics of the electronic device.

[0034] In some embodiments, the second screen 200 may include a second housing 210 and a second e-ink display module 220. The second housing 210 includes a second inner cavity 211, and the second e-ink display module 220 is disposed within the second inner cavity and can be used to display content. In some embodiments, the second e-ink display module 220 may be a flexible display module.

[0035] refer to Figure 5 , Figure 5 This is a schematic diagram of a second housing structure according to an embodiment of the present application. In some embodiments, the second housing 210 may include a second base plate 212 and a second side plate 213, wherein the second side plate 213 is fixedly disposed on the periphery of the second base plate 212 and extends to one side of the second base plate, and the second side plate 213 and the second base plate 212 together form a second inner cavity 211 with one end open, which can be used to accommodate a second e-ink display module.

[0036] In some embodiments, the second housing 210 includes a plurality of second support members 214 disposed in the second inner cavity 211 for supporting the second e-ink display module. In some embodiments, the second support members 214 may be rigid ribs, which may be fixedly disposed on the second base plate 212 and extend into the second inner cavity 211. In some embodiments, the second support members 214 may also be elastic ribs, which may cushion the second e-ink display module and reduce the damage rate of the second e-ink display module when the dual e-ink electronic device is dropped. In some embodiments, the second support members may also be other structures, such as rigid or elastic frames, perforated plates, columns, or particles.

[0037] In some embodiments, a plurality of second support members 214 are interconnected or separately disposed in the second inner cavity, which can divide the second inner cavity into a plurality of second regions, which can be used to accommodate electronic components of a dual-e-ink screen electronic device. According to one embodiment of this application, the plurality of second regions may include: a sub-circuit board region 215 and a second connection region 216 connected to the second e-ink screen display module. In some embodiments, the sub-circuit board region 215 and the second connection region 216 are located close to each other. The second connection region 216 is located near the upper side of the second inner cavity, and the sub-circuit board region is vertically disposed in the region near the middle of the second inner cavity. In some embodiments, the second connection region 216 and the first connection region 117 are symmetrical with respect to the axis of rotation.

[0038] In some embodiments, the plurality of second regions may further include: a sub-circuit board area 217, which may be horizontally disposed between the sub-circuit board area 215 and the second connection area 216. In some embodiments, the sub-circuit board area 217 may be symmetrically arranged with respect to the axis of rotation of the main circuit board area 116. In some embodiments, the plurality of second regions may further include: a button control area 218, which may be located on the lower side of the second inner cavity. The above-described partitioned layout defines each functional area in an integrated manner through the support member, so that the sub-circuit board, sub-circuit board, button control board and display connection assembly form an orderly spatial arrangement in the second inner cavity, which is beneficial to improving the utilization of internal space, facilitating the positioning and fixing of each electronic component during assembly, and reducing signal interference between components.

[0039] In some embodiments, the second screen 200 may further include a sub-circuit board 230, which may be disposed in the sub-circuit board area 215 of the second housing and may be used for the wiring of the second screen. For example, it may serve as a relay circuit board for the second screen, used to relay power, display signals and touch signals between the main circuit board and the second e-ink display module; to adapt to long-distance ribbon cable transmission of the folding hinge, it may buffer the transmitted signals, ensure the integrity of the signals transmitted over long ribbon cables, and reduce EMI interference.

[0040] In some embodiments, the second screen 200 may further include a sub-circuit board 240, which can be connected to the sub-circuit board via a ribbon cable for connecting the sub-circuit board and the second e-ink display module, facilitating the connection and assembly of the second e-ink display module. Even if the ribbon cable connecting the sub-circuit board and the sub-circuit board includes bends, the ribbon cable connecting the sub-circuit board and the sub-circuit board will be fixed after the second e-ink display module is assembled, and will not move with the folding of the first and second screens. This facilitates the straight arrangement of the ribbon cable between the cable guide and the sub-circuit board in the electronic device, and also facilitates the connection between the second e-ink display module and the sub-circuit board. In some embodiments, after the electronic device is assembled, the sub-circuit board may be disposed in the sub-circuit board area 217 of the second housing.

[0041] In some embodiments, the second screen 200 may further include a plurality of buttons 251 and a button panel 252. The plurality of buttons 251 pass through the second side panel below the second housing and extend into the button control area 218. The button panel 252 is disposed in the button control area 218 of the second housing, used to sense button presses, and connected to a sub-circuit board. In some embodiments, the sub-circuit board and the button panel are electrically connected via a second connecting line 253.

[0042] refer to Figure 6 , Figure 6This is a schematic diagram of the back of a second e-ink display module according to an embodiment of this application. In some embodiments, the second e-ink display module 220 may include: a second display FPC cable 221, which may be disposed in the second connection area 216 of the second housing and connected to the sub-circuit board 240, and can be used to output display content to the second e-ink display module 220. In some embodiments, the second e-ink display module 220 may include: a second electromagnetic membrane controller 222, which may be disposed in the second connection area 216 of the second housing and connected to the sub-circuit board, and can be used to detect input content of the second e-ink display module 220. In some embodiments, the second display FPC cable 221 and the second electromagnetic membrane controller 222 may be disposed side by side in the second connection area 216.

[0043] In some embodiments, the second display FPC cable 221, the second electromagnetic film controller 222, and the sub-circuit board are all fixedly disposed on the back side of the second e-ink display module. The sub-circuit board can serve as a terminal driver board for the second e-ink display module, carrying the second electromagnetic film controller and the second display FPC cable, and is used to output driving timing signals to the second e-ink display module, acquire touch signals, and simultaneously perform electromagnetic interference suppression.

[0044] In some embodiments, the main circuit board and the sub-circuit board are interconnected via a first ribbon cable 500 passing through a cable guide 400, wherein the first ribbon cable does not bend between the cable guide and the sub-circuit board. That is, after the first ribbon cable enters the second housing through the cable guide, it is horizontally and straightly connected to the sub-circuit board. In some embodiments, the first ribbon cable includes a bend between the cable guide and the main circuit board and passes through the battery area. In some embodiments, the first ribbon cable between the cable guide and the main circuit board is located above the battery, that is, the first ribbon cable is located between the battery and the first e-ink display module. In some embodiments, the first ribbon cable is partially fixed between the cable guide and the main circuit board, for example, fixed to the battery, so as to prevent the first ribbon cable from shifting and causing wear when the first screen and the second screen are opened, closed, or folded.

[0045] In some embodiments, the length of the first ribbon cable changes when the first and second screens are opened, closed, or folded. For example, when the first and second screens are in the unfolded state, the required length of the first ribbon cable is shorter; when the first and second screens are in the folded state, the required length of the first ribbon cable is longer. In some embodiments, the first ribbon cable includes a buffer portion to accommodate changes in its length. In some embodiments, the buffer portion of the first ribbon cable is located in the second screen. The following will be combined with... Figure 7 The structure of the first cable buffer section of this application is further explained.

[0046] Figure 7This is a partial cross-sectional view of a dual-e-ink screen electronic device according to an embodiment of this application. As shown, the first ribbon cable 500 includes a buffer portion 510, which is disposed in the second screen and located between the second housing 210 and the second e-ink screen display module. The buffer portion 510 is U-shaped and is formed by the first ribbon cable 500 contracting and folding along its extension direction, and does not fall under the aforementioned definition of "bending". The two ends of the buffer portion 510 are smoothly connected to the straight first ribbon cable. During the folding and opening process of the dual-e-ink screen electronic device, the buffer portion 510 can absorb the length change of the first ribbon cable 500 through the extension and contraction of its own U-shaped structure, thereby preventing the first ribbon cable 500 from undergoing unexpected folding deformation (i.e., abnormal bending) in the plane. In some embodiments, the buffer portion 510 can also be other shapes, such as S-shaped or wavy. In some embodiments, the straight first ribbon cable can be a fixing part of the first ribbon cable, which can be fixed to the second housing, thereby preventing the first ribbon cable from moving and wearing during the opening and closing of the electronic device, which would further affect the normal extension and contraction of the buffer portion.

[0047] In some embodiments, the second screen 200 may further include a second cover 260, which can be fastened to the second inner cavity of the second housing and can fix the second e-ink display module in the second inner cavity. In some embodiments, the second cover 260 may be a face frame, which can press the second e-ink display module tightly from all sides. The middle area of ​​the face frame includes an opening, which can expose the middle display area of ​​the second e-ink display module, which helps to reduce the thickness and weight of the electronic device and facilitates the thinning of the electronic device. In some embodiments, the second cover 260 may also be a transparent cover plate, which presses the second e-ink display module on the second e-ink display module and fixes the second e-ink display module in the second inner cavity, which helps to make the surface of the electronic device flat and improve the aesthetics of the electronic device.

[0048] This application adjusts the connecting cable between the cable guide and the secondary circuit board, ensuring that the movable portion of the connecting cable between the main and secondary circuit boards is straight. This avoids problems such as abnormal bending, insulation wear, circuit breakage, or unstable signal transmission that can occur during folding and opening of the cable. The secondary circuit board and the secondary circuit sub-board are connected by a bent connecting cable. Since this part of the cable is not movable, it can be fixed in the second housing, preventing abnormal bending, insulation wear, circuit breakage, or unstable signal transmission even during folding and opening. The aforementioned "movable bending" refers to the cable including a certain angle, and the cable is not fixed.

[0049] This application also proposes another electronic device structure.

[0050] Figure 8 This is an internal structural diagram of a dual-e-ink screen electronic device according to another embodiment of this application.

[0051] Combination Figure 1 and Figure 2 The dual-e-ink screen electronic device (hereinafter referred to as the "electronic device") 10 includes a first screen 100, a second screen 200, one or more hinges 300, and a cable guide 400. The one or more hinges 300 and the cable guide 400 are connected between the first screen 100 and the second screen 200, thereby allowing the dual-e-ink screen electronic device to be stacked or unfolded. When the dual-e-ink screen electronic device is in the unfolded state, the first screen and the second screen are on the same plane; when the dual-e-ink screen electronic device is in the stacked state, the first screen and the second screen completely overlap. In some embodiments, the thickness of the first screen 100 and / or the second screen 200 does not exceed 6 mm.

[0052] In some embodiments, the first screen 100 includes a first housing 110 and a first e-ink display module 120. The first housing 110 includes a first inner cavity 111, and the first e-ink display module 120 is disposed in the first inner cavity and can be used to display content.

[0053] refer to Figure 9 , Figure 9 This is a schematic diagram of a first housing structure according to another embodiment of the present application. In some embodiments, the first housing 110 may include a first base plate 112 and a first side plate 113, wherein the first side plate 113 is fixedly disposed on the periphery of the first base plate 112 and extends to one side of the first base plate, and the first side plate 113 and the first base plate 112 together form a first inner cavity 111 with one end open, which can be used to accommodate a first e-ink display module.

[0054] In some embodiments, the first housing 110 includes a plurality of first support members 114 disposed in the first inner cavity 111 for supporting the first e-ink display module. In some embodiments, the first support member 114 may be a rigid rib, which may be fixedly disposed on the first base plate 112 and extend into the first inner cavity 111. In some embodiments, the first support member 114 may also be an elastic rib, which may cushion the first e-ink display module and reduce the damage rate of the first e-ink display module when the dual e-ink electronic device is dropped. In some embodiments, the first support member may also be other structures, such as rigid or elastic frames, perforated plates, columns, or particles.

[0055] In some embodiments, a plurality of first support members 114 are interconnected or separately disposed in the first inner cavity, which can divide the first inner cavity into a plurality of first regions, which can be used to accommodate electronic components of a dual-e-ink screen electronic device. According to one embodiment of this application, the plurality of first regions may include: a battery region 115, a main circuit board region 116, and a first connection region 117 with the first e-ink screen display module. In some embodiments, the first connection region 117 is located near the upper side of the first inner cavity; the main circuit board region 116 and the battery region 115 are arranged side by side near the lower side of the first inner cavity. In some embodiments, the battery region 115 occupies at least 50% of the total area of ​​the first inner cavity.

[0056] In some embodiments, the plurality of first regions may further include: an adjacent region 118, which may be connected to the main circuit board region and may be used to accommodate electronic components associated with the main circuit board. In some embodiments, the adjacent regions 118 may be disposed on both sides of the main circuit board region and together with the battery region, surround the main circuit board region, such that one side of the main circuit board region 116 is close to the edge of the first inner cavity, and the adjacent regions may be used to accommodate electronic components associated with the main circuit board or the connection portion between the main circuit board and the electronic components. In some embodiments, the plurality of first regions may further include: a main circuit sub-board region 119, which is disposed between the adjacent regions and the first connection region.

[0057] In some embodiments, the first screen 100 may further include a main circuit board 130, which may be disposed in the main circuit board area 116 of the first housing and may be used for controlling the first screen and the second screen. In some embodiments, the first screen 100 may further include a battery 140, which may be disposed in the battery area 115 of the first housing and may be connected to the main circuit board to provide power to electronic devices.

[0058] In some embodiments, the first screen 100 may further include a main circuit sub-board 170, which can connect the main circuit board and the first e-ink display module to facilitate the connection and assembly of the first e-ink display module. Even if the connecting cables between the main circuit board and the main circuit sub-board include bends, the connecting cables between the main circuit board and the main circuit sub-board will be fixed after the first e-ink display module is assembled, and will not move with the folding of the first and second screens. This facilitates the straight arrangement of the connecting cables between the main circuit board and the sub-circuit board in the electronic device, and also facilitates the connection between the first e-ink display module and the main circuit board. In some embodiments, after the electronic device is assembled, the main circuit sub-board may be disposed in the main circuit sub-board area 119 of the first housing.

[0059] refer to Figure 10 , Figure 10This is a schematic diagram of the back of a first e-ink display module according to another embodiment of this application. In some embodiments, the first e-ink display module 120 may include: a first display FPC cable 121, which may be disposed in the first connection area 117 of the first housing and connected to the main circuit board, and can be used to output display content to the first e-ink display module 120. In some embodiments, the first e-ink display module 120 may include: a first electromagnetic membrane controller 122, which may be disposed in the first connection area 117 of the first housing and connected to the main circuit board, and can be used to detect the input content of the first e-ink display module 120. In some embodiments, the first display FPC cable 121 and the first electromagnetic membrane controller 122 may be disposed side by side in the first connection area 117.

[0060] In some embodiments, the first display FPC cable 121, the first electromagnetic film controller 122, and the main circuit board are all fixedly disposed on the back of the first e-ink display module. The main circuit board can serve as a terminal driver board for the first e-ink display module, carrying the first electromagnetic film controller and the first display FPC cable, and is used to output driving timing signals to the first e-ink display module, acquire touch signals, and simultaneously perform electromagnetic interference suppression.

[0061] In some embodiments, the first screen 100 may further include a charging interface 150, which may be disposed on the lower edge of the first inner cavity and penetrate through the first side plate of the first housing. The charging interface 150 may be connected to the main circuit board and to an external power source to power electronic devices or charge batteries. In some embodiments, a first connecting line 151 is included between the charging interface 150 and the main circuit board, wherein the first connecting line 151 may connect the charging interface 150 and the main circuit board from above the battery. That is, the first connecting line 151 is located between the battery and the first e-ink display module.

[0062] In some embodiments, the first screen 100 may further include a first cover 160, which can be fastened to the first inner cavity of the first housing and can fix the first e-ink display module in the first inner cavity. In some embodiments, the first cover 160 may be a face frame, which can press the first e-ink display module tightly from all sides. The middle area of ​​the face frame includes an opening, which can expose the middle display area of ​​the first e-ink display module, which helps to reduce the thickness and weight of the electronic device and facilitates the thinning of the electronic device. In some embodiments, the first cover 160 may also be a transparent cover plate, which presses the first e-ink display module on the first e-ink display module and fixes the first e-ink display module in the first inner cavity, which helps to make the surface of the electronic device flat and improves the aesthetics of the electronic device.

[0063] In some embodiments, the second screen 200 may include a second housing 210 and a second e-ink display module 220. The second housing 210 includes a second inner cavity 211, and the second e-ink display module 220 is disposed in the second inner cavity and can be used to display content.

[0064] refer to Figure 5 In some embodiments, the second housing 210 may include a second base plate 212 and a second side plate 213, wherein the second side plate 213 is fixedly disposed on the periphery of the second base plate 212 and extends to one side of the second base plate, and the second side plate 213 and the second base plate 212 together form a second inner cavity 211 with one end open, which can be used to accommodate the second e-ink display module.

[0065] In some embodiments, the second housing 210 includes a plurality of second support members 214 disposed in the second inner cavity 211 for supporting the second e-ink display module. In some embodiments, the second support members 214 may be rigid ribs, which may be fixedly disposed on the second base plate 212 and extend into the second inner cavity 211. In some embodiments, the second support members 214 may also be elastic ribs, which may cushion the second e-ink display module and reduce the damage rate of the second e-ink display module when the dual e-ink electronic device is dropped. In some embodiments, the second support members may also be other structures, such as rigid or elastic frames, perforated plates, columns, or particles.

[0066] In some embodiments, a plurality of second support members 214 are interconnected or separately disposed in the second inner cavity, which can divide the second inner cavity into a plurality of second regions, which can be used to accommodate electronic components of a dual-e-ink screen electronic device. According to one embodiment of this application, the plurality of second regions may include: a sub-circuit board region 215 and a second connection region 216 connected to the second e-ink screen display module. In some embodiments, the sub-circuit board region 215 and the second connection region 216 are located close to each other. The second connection region 216 is located near the upper side of the second inner cavity, and the sub-circuit board region is vertically disposed in the region near the middle of the second inner cavity. In some embodiments, the second connection region 216 and the first connection region 117 are symmetrical with respect to the axis of rotation.

[0067] In some embodiments, the plurality of second regions may further include: a sub-circuit board region 217, which may be horizontally disposed between the sub-circuit board region 215 and the second connection region 216. In some embodiments, the sub-circuit board region 217 may be arranged symmetrically with respect to the axis of rotation of the main circuit board region 119. In some embodiments, the plurality of second regions may further include: a button control region 218, which may be located on the lower side of the second inner cavity.

[0068] In some embodiments, the second screen 200 may further include a sub-circuit board 230, which may be disposed in the sub-circuit board area 215 of the second housing and may be used for the wiring of the second screen. For example, it may serve as a relay circuit board for the second screen, used to relay power, display signals and touch signals between the main circuit board and the second e-ink display module; to adapt to long-distance ribbon cable transmission of the folding hinge, it may buffer the transmitted signals, ensure the integrity of the signals transmitted over long ribbon cables, and reduce EMI interference.

[0069] In some embodiments, the second screen 200 may further include a sub-circuit board 240, which can be connected to the sub-circuit board for connecting the sub-circuit board and the second e-ink display module, facilitating the connection and assembly of the second e-ink display module. Even if the connecting cables between the sub-circuit board and the sub-circuit board include bends, the connecting cables between the sub-circuit board and the sub-circuit board will be fixed after the second e-ink display module is assembled, and will not move with the folding of the first and second screens. This facilitates the straight arrangement of the connecting cables between the cable guide and the sub-circuit board in the electronic device, and also facilitates the connection between the second e-ink display module and the sub-circuit board. In some embodiments, after the electronic device is assembled, the sub-circuit board may be disposed in the sub-circuit board area 217 of the second housing.

[0070] In some embodiments, the second screen 200 may further include a plurality of buttons 251 and a button panel 252. The plurality of buttons 251 pass through the second side panel below the second housing and extend into the button control area 218. The button panel 252 is disposed in the button control area 218 of the second housing, used to sense button presses, and connected to a sub-circuit board. In some embodiments, the sub-circuit board and the button panel are electrically connected via a second connecting line 253.

[0071] refer to Figure 6 In some embodiments, the second e-ink display module 220 may include a second display FPC cable 221, which may be disposed in the second connection area 216 of the second housing and connected to the sub-circuit board 240, and can be used to output display content to the second e-ink display module 220. In some embodiments, the second e-ink display module 220 may include a second electromagnetic membrane controller 222, which may be disposed in the second connection area 216 of the second housing and connected to the sub-circuit board, and can be used to detect the input content of the second e-ink display module 220. In some embodiments, the second display FPC cable 221 and the second electromagnetic membrane controller 222 may be disposed side by side in the second connection area 216.

[0072] In some embodiments, the second display FPC cable 221, the second electromagnetic film controller 222, and the sub-circuit board are all fixedly disposed on the back side of the second e-ink display module. The sub-circuit board can serve as a terminal driver board for the second e-ink display module, carrying the second electromagnetic film controller and the second display FPC cable, and is used to output driving timing signals to the second e-ink display module, acquire touch signals, and simultaneously perform electromagnetic interference suppression.

[0073] In some embodiments, the main circuit board and the sub-circuit board are interconnected by a first ribbon cable 500 passing through a cable guide 400, wherein the first ribbon cable does not bend between the cable guide and the sub-circuit board. That is, after the first ribbon cable enters the second housing through the cable guide, it is horizontally and straightly connected to the sub-circuit board. In some embodiments, the first ribbon cable also does not bend between the cable guide and the main circuit board; the first ribbon cable can pass through the cable guide above the battery and connect to the main circuit board. That is, the first ribbon cable is located between the battery and the first e-ink display module. In some embodiments, the first ribbon cable is partially fixed between the cable guide and the main circuit board, for example, fixed to the battery, so as to prevent the first ribbon cable from shifting and wearing when the first screen and the second screen are opened and closed. In some embodiments, the length of the first ribbon cable changes when the first screen and the second screen are opened and closed. For example, when the first screen and the second screen are in the unfolded state, the required length of the first ribbon cable is shorter; when the first screen and the second screen are in the folded state, the required length of the first ribbon cable is longer. In some embodiments, the first ribbon cable includes a buffer portion to accommodate the change in the length of the first ribbon cable. In some embodiments, the buffer portion of the first ribbon cable is located in the second screen.

[0074] In some embodiments, the second screen 200 may further include a second cover 260, which can be fastened to the second inner cavity of the second housing and can fix the second e-ink display module in the second inner cavity. In some embodiments, the second cover 260 may be a face frame, which can press the second e-ink display module tightly from all sides. The middle area of ​​the face frame includes an opening, which can expose the middle display area of ​​the second e-ink display module, which helps to reduce the thickness and weight of the electronic device and facilitates the thinning of the electronic device. In some embodiments, the second cover 260 may also be a transparent cover plate, which presses the second e-ink display module on the second e-ink display module and fixes the second e-ink display module in the second inner cavity, which helps to make the surface of the electronic device flat and improve the aesthetics of the electronic device.

[0075] This application adjusts the connecting cables between the cable guide and the secondary circuit board, as well as between the cable guide and the main circuit board, so that the connecting cables are horizontal and straight. This avoids problems such as abnormal bending, insulation wear, line breakage, or unstable signal transmission that may occur during the folding and opening of the flexible cables.

[0076] The above embodiments are for illustrative purposes only and are not intended to limit the invention. Those skilled in the art can make various changes and modifications without departing from the scope of the invention. Therefore, all equivalent technical solutions should also fall within the scope of the invention.

Claims

1. A dual-e-ink screen electronic device, comprising: A first screen, a second screen, and a cable guide and one or more hinges connecting the first screen and the second screen; The first screen is characterized in that it comprises a first housing, a first e-ink display module, a battery, and a main circuit board, wherein: The first housing includes a first inner cavity and a plurality of first support members, the plurality of first support members being disposed in the first inner cavity for supporting the first e-ink display module; the plurality of first support members are separate from and / or connected to each other, and define a plurality of first regions; The battery and the main circuit board are respectively housed in the plurality of first regions; The second screen includes a second housing, a second e-ink display module, and a sub-circuit board, wherein: The second housing includes a second inner cavity and a plurality of second support members, which are disposed in the second inner cavity for supporting the second e-ink display module; the plurality of second support members are separate from and / or connected to each other, and define a plurality of second regions; The sub-circuit board is housed in the plurality of second regions; The main circuit board is used for controlling the first screen and the second screen, and the sub-circuit board is used for the wiring of the second screen. The main circuit board and the sub-circuit board are connected to each other by a first ribbon cable passing through the cable guide. The first ribbon cable between the cable guide and the sub-circuit board does not bend in a plane parallel to the second screen.

2. The dual-e-ink screen electronic device according to claim 1, characterized in that, The plurality of first regions include a battery region for accommodating the battery, a main circuit board region for accommodating the main circuit board, and a first connection region for accommodating the first display FPC cable and the first electromagnetic film controller; the battery region is disposed on one side of the first inner cavity, and the main circuit board region is located close to the first connection region and disposed on the other side of the first inner cavity.

3. The dual-e-ink screen electronic device according to claim 2, characterized in that, The first connection area is located on one side of the first inner cavity, and the main circuit board area is located side by side with the battery area on the other side of the first inner cavity.

4. The dual-e-ink screen electronic device according to claim 3, characterized in that, The first cable does not bend between the cable guide and the main circuit board.

5. The dual-e-ink screen electronic device according to claim 1, characterized in that, The first ribbon cable includes a buffer section, which is entirely located in the second screen.

6. The dual-e-ink screen electronic device according to claim 1, characterized in that, The first ribbon cable passes over the battery and enters the cable guide, extending in a straight line between the cable guide and the sub-circuit board; the first screen further includes a charging interface near the edge of the first inner cavity, the main circuit board is electrically connected to the charging interface via a first connecting line, and the first connecting line passes over the battery.

7. The dual-e-ink screen electronic device according to claim 1, characterized in that, In the first screen, the battery occupies half or more of the total area of ​​the first inner cavity.

8. The dual-e-ink screen electronic device according to claim 1, characterized in that, The first housing further includes an adjoining area connected to the main circuit board area for accommodating electronic components associated with the main circuit board.

9. The dual-e-ink screen electronic device according to claim 1, characterized in that, The second screen includes multiple buttons and a button board, and the sub-circuit board is electrically connected to the button board via a second connecting line.

10. The dual-e-ink screen electronic device according to claim 1, characterized in that, The first support member and / or the second support member are one or more of the following: rigid or elastic ribs, frames, perforated plates, columns, and particles.

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