Keyboard and electronic equipment

Abstract

The invention provides a keyboard and electronic equipment. Relates to the technical field of electronic equipment accessories. The keyboard comprises a plurality of keycaps, any keycap comprises a first part and second parts, for example, the first part is a touch part, the second parts can be deformed, at least two opposite sides of the first part are provided with the second parts, and the second parts protrude towards the pressing side of the keyboard compared with the first part to form protruding parts. When the first part of the key cap is pressed, the second part is deformed; the keyboard further comprises a connecting part, and the connecting part is connected with the second parts of the two adjacent key caps. According to the technical scheme, the protruding second part can become the boundary of a finger triggering position, so that the finger can be better positioned, and the protruding second part can enable typewriting and enable the key cap to rapidly rebound under the action of small triggering force, so that the triggering sensitivity is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic device accessories, in particular to a keyboard and an electronic device comprising the same. BACKGROUND

[0002] In some electronic devices, such as devices with touch display screens, if a user wants a traditional typing experience, for example, wants to type on a keyboard that provides a similar tactile experience to a traditional mechanical-electrical keyboard, the user can place the keyboard on the touch display screen, can type on the keyboard and experience the desired vertical key stroke, tactile capture or auditory feedback, and tapping the keyboard can activate the underlying touch display screen to output a corresponding signal.

[0003] On some keyboards, it is difficult to better position fingers, it is difficult to implement touch typing, and the trigger force is large, which reduces the user experience. SUMMARY

[0004] The present application provides a keyboard and an electronic device comprising the same. The purpose is to provide a keyboard that can better position fingers, reduce trigger force, improve trigger sensitivity, and implement touch typing.

[0005] To achieve the above purpose, the embodiments of the present application adopt the following technical solutions:

[0006] In a first aspect, the present application provides a keyboard, which can be a passive keyboard, and the keyboard can be used in cooperation with an electronic device having a touch display screen.

[0007] The keyboard provided by the present application comprises a plurality of keycaps, any keycap comprises a first part and a second part, for example, the first part is a part for touch feeling, the second part has elasticity, the opposite sides of the first part have the second part, and the second part protrudes to form a protruding part towards the pressing side of the keyboard compared with the first part, the keyboard further comprises a connecting part, the connecting part connects the second parts of two adjacent keycaps, the second part is in a first state when the keycap is in a non-pressing state, the first part is displaced in a pressing direction when the keycap is in a pressing state, and the second part is in a second state; when the keycap changes from the pressing state to the non-pressing state, the first part is displaced in a direction opposite to the pressing direction, and the second part returns to the first state.

[0008] The keycaps in the keyboard provided in this application include a first part for triggering and a second part located at the edge of the first part. When a finger triggers the first part, the protruding second part serves as the boundary of the finger's trigger position, allowing for better finger positioning. Furthermore, the second part of the keycap is elastic and protrudes towards the pressing side of the keyboard. When the first part of the keycap is pressed, the second part can deform. Compared to a non-protruding structure, the protruding second part increases its elasticity. This allows for typing with a smaller triggering force. Additionally, after pressing the first part, the second part bends, generating a larger upward elastic force. For example, when the user's finger leaves the key, this elastic force allows the keycap to quickly rebound, improving trigger sensitivity.

[0009] In one possible implementation, a second part is arranged around the periphery of the first part, that is, the second part is arranged around the periphery of the first part.

[0010] In this example, the second part can be set to wrap around the first part.

[0011] In one possible implementation, the multiple keycaps include adjacent first keycaps and second keycaps; an air vent is provided on the side of the connection portion between the first keycaps and the second keycaps away from the pressing side; the air vent connects to a first space enclosed by the first keycaps and a second space enclosed by the second keycaps.

[0012] In this example, the vent connects to the space enclosed by two adjacent keycaps. This prevents excessive pressing force due to a sealed air chamber, while also providing air replenishment after pressing to allow the keycaps to rebound more quickly. Furthermore, the vent in this application is located on the side of the connecting portion away from the pressing side, meaning it is hidden inside the keyboard. Compared to exposed vents, this improves the keyboard's aesthetic appeal.

[0013] In one possible implementation, a first reinforcing plate is provided on the side of the connecting portion away from the pressing side, and an air vent is provided on the first reinforcing plate.

[0014] In this structure, a reinforcing plate is provided on the back of the connecting part (the side away from the pressing side), which can increase the strength of the entire keyboard, so that the keyboard will not wrinkle when placed on the touch screen or when pressed, and can also make the keycaps move up and down smoothly.

[0015] In this example, the air vent is located on the reinforcing plate. Using the reinforcing plate structure to set the air vent simplifies the entire keyboard structure.

[0016] In one possible implementation, the first reinforcing plate includes a first reinforcing section and a second reinforcing section, and the gap between the first reinforcing section and the second reinforcing section forms an air guide hole.

[0017] From a manufacturing process perspective, the air vent can be formed by utilizing the gap between the two reinforcing sections, which simplifies the manufacturing process compared to opening holes in the reinforcing plate.

[0018] In one feasible approach, the air vent is located within the connecting portion.

[0019] For example, in some cases, it may not be necessary to set up a first reinforcing plate. In this way, the air vent can be opened inside the connecting part to achieve airflow between the two keycaps.

[0020] In one feasible approach, the first part, the second part, and the connecting part are integrally formed.

[0021] For example, it can be made from transparent silicone, a low-modulus material.

[0022] In one possible implementation, the surface of the first part facing the pressing side is a plane, and the surface of the protrusion facing the pressing side is an arc surface.

[0023] In one possible implementation, a second reinforcing plate is provided on the side of the first part away from the pressing side.

[0024] Because a reinforcing plate is placed on the side of the first part away from the pressing side, for example, when the first part is made of silicone, the strength of the first part can be improved. When the first part is pressed, the warping phenomenon caused by uneven pressing can be reduced. In addition, after pressing the keycap, the first reinforcing plate will prevent it from sticking to the touch screen and affecting the rebound.

[0025] In one possible implementation, the keyboard further includes a first conductive layer disposed on the side of the first portion facing the pressing side.

[0026] By setting a conductive layer on the first part, the sensing area of ​​the touch screen can be increased, thus improving the sensitivity of pressing.

[0027] In one possible implementation, the keyboard further includes a second conductive layer; the second conductive layer is disposed on the side of the keycap facing the pressing side, or the second conductive layer is disposed on the side of the keycap away from the pressing side, the second conductive layers on multiple keycaps are connected together, and when the keycap is in the pressing state, the second conductive layer is used to trigger the touch display screen of the electronic device.

[0028] In some usage scenarios, such as when pressing keycaps without using the fingertip, the small projection area of ​​the fingertip on the touchscreen due to the air barrier results in a very weak signal, making triggering difficult. This application addresses this by adding a larger second conductive layer. A larger second conductive layer has a greater capacity to accumulate charge, allowing it to couple with the electrodes in the touchscreen during use, generating a larger capacitance change and enabling stable triggering under non-finger pressure conditions.

[0029] In one possible implementation, the keyboard also includes a connection terminal electrically connected to the second conductive layer, the connection terminal being used for electrical connection to the ground terminal of the electronic device.

[0030] For example, the connection terminal can be a metal contact or a USB interface.

[0031] In one example, the second conductive layer can be electrically connected to the ground terminal of the electronic device via a connection terminal, which can further improve the trigger sensitivity.

[0032] In one possible implementation, a second conductive layer is provided on the side of the first part away from the pressing side, at least a portion of the side of the second part away from the pressing side, and at least a portion of the side of the connecting part away from the pressing side; the second conductive layer provided on the first part, the second conductive layer provided on the second part, and the second conductive layer provided on the connecting part are connected.

[0033] In this example, a second conductive layer can be set not only on the first part, but also on the second part and the connecting part. By increasing the area of ​​the second conductive layer, the trigger sensitivity under non-finger pressure conditions is further improved.

[0034] In one possible implementation, at least a portion of the first part facing the pressing side, at least a portion of the second part facing the pressing side, and at least a portion of the connecting part facing the pressing side are all provided with a second conductive layer; the second conductive layer provided on the first part, the second conductive layer provided on the second part, and the second conductive layer provided on the connecting part are connected.

[0035] In this example, a second conductive layer can be set not only on the first part, but also on the second part and the connecting part. By increasing the area of ​​the second conductive layer, the trigger sensitivity under non-finger pressure conditions is further improved.

[0036] In one possible implementation, the keyboard also includes a base plate; the base plate is disposed on the side opposite to the pressing side of the first part, the second part and the connecting part, and the base plate is connected to the connecting part; electrode wires are disposed inside the base plate.

[0037] In this implementation structure, a base plate with electrode lines is provided on the side of the keyboard away from the pressing side, making the keyboard an active keyboard. The keyboard can be used independently, that is, it does not need to be covered on the touch screen, and the keyboard also has the function of a touchpad.

[0038] In one feasible approach, the base plate is made of an electrochromic material and has characters on it.

[0039] In some usage scenarios, when the keyboard is not electrically connected to an electronic device, the base plate is transparent and the characters are not displayed. When the keyboard is electrically connected to an electronic device, the base plate can become opaque and the characters can be displayed for user operation.

[0040] Secondly, this application provides an electronic device that may include a touch screen and a keyboard as described in any of the above implementations, wherein the touch screen is used to receive input via the keyboard.

[0041] The electronic device provided in this application includes a keyboard used in conjunction with a display screen. It includes not only a first part that is pressed by the user, but also a second part that is elastic and surrounds the outer periphery of the first part. The second part protrudes towards the pressing side of the keyboard. When the first part of the keycap is pressed, the second part can deform. Compared with a non-protruding structure, the protruding second part can increase the elasticity of the second part. In this way, typing can be performed with a small trigger force, and the keycap can rebound quickly, improving the trigger sensitivity.

[0042] In one possible implementation, in the non-pressed state, the second conductive layer on the side of the first portion opposite to the pressing side has a gap with the surface of the touch display screen; in the non-pressed state, the second conductive layer on the side of the second portion opposite to the pressing side has a gap with the surface of the touch display screen; in the non-pressed state, the second conductive layer on the side of the connecting portion opposite to the pressing side has a gap with the surface of the touch display screen.

[0043] Since the second conductive layer on the first part, the second conductive layer on the second part, and the second conductive layer on the connecting part all have a gap with the surface of the touch display screen when not pressed, the gap is used to prevent the second conductive layer from triggering the touch display screen.

[0044] In one possible implementation, in the non-pressed state, the second conductive layer on the side of the first portion opposite to the pressing side has a gap with the surface of the touch display screen; in the non-pressed state, the second conductive layer on the side of the second portion opposite to the pressing side has a gap with the surface of the touch display screen; in the non-pressed state, the second conductive layer on the side of the connecting portion opposite to the pressing side is in contact with the surface of the touch display screen, and the second conductive layer on the side of the connecting portion opposite to the pressing side does not trigger the touch display screen of the electronic device.

[0045] In this embodiment, both the second conductive layer on the first part and the second conductive layer on the second part have a gap with the surface of the touch display screen. This gap ensures that the corresponding second conductive layer does not trigger the touch display screen when not pressed. In addition, the second conductive layer on the connecting part is in contact with the surface of the touch display screen, but the contact area is small, so the signal is very weak when not pressed and cannot trigger the touch display screen.

[0046] Thirdly, this application also provides a button, which includes a first part and a second part. For example, the first part is a tactile part, and the second part is elastic. The second part has two opposite sides of the first part, and the second part protrudes towards the pressing side of the keyboard to form a protrusion compared to the first part. When the button is in a non-pressed state, the second part is in a first state. When the button is in a pressed state, the first part is displaced in the pressing direction, and the second part is in a second state. When the button changes from the pressed state to the non-pressed state, the first part is displaced in the opposite direction to the pressing direction, and the second part returns to the first state.

[0047] When a finger triggers the first part, the protruding second part can serve as the boundary of the finger's trigger position, allowing for better finger positioning. In addition, the second part can deform; compared to a non-protruding structure, the protruding second part increases its elasticity, enabling typing with less trigger force and allowing the keycaps to rebound quickly, thus improving trigger sensitivity.

[0048] In one possible implementation, a second part is arranged around the periphery of the first part, that is, the second part is arranged around the periphery of the first part.

[0049] In one feasible approach, the first and second parts are integrally molded structures.

[0050] In one possible implementation, the surface of the first part facing the pressing side is a plane, and the surface of the protrusion facing the pressing side is an arc surface.

[0051] In one possible implementation, a reinforcing plate is provided on the side of the first part that is away from the pressing side.

[0052] Because a reinforcing plate is placed on the side of the first part away from the pressing side, for example, when the first part is made of silicone, the strength of the first part can be improved. When the first part is pressed, the warping phenomenon caused by uneven pressing can be reduced. In addition, after pressing the button, the first reinforcing plate will not stick to the touch screen and affect the rebound.

[0053] In one possible implementation, the keyboard further includes a first conductive layer; the first conductive layer is disposed on the side of the first portion facing the pressing side.

[0054] By setting a conductive layer on the first part, the sensing area of ​​the touch screen can be increased, thus improving the sensitivity of pressing.

[0055] In one possible implementation, the keyboard further includes a second conductive layer; the second conductive layer is disposed on the side of the keycap facing the pressing side, or the second conductive layer is disposed on the side of the keycap away from the pressing side, and when the key is pressed, the second conductive layer is used to trigger the touch display screen of the electronic device.

[0056] In some usage scenarios, such as when pressing keycaps without using the fingertip, the small projection area of ​​the fingertip on the touchscreen due to the air barrier results in a very weak signal, making triggering difficult. This application addresses this by adding a larger second conductive layer. A larger second conductive layer has a greater capacity to accumulate charge, allowing it to couple with the electrodes in the touchscreen during use, generating a larger capacitance change and enabling stable triggering under non-finger pressure conditions.

[0057] In one possible implementation, the keyboard also includes a connection terminal electrically connected to the second conductive layer, the connection terminal being used for electrical connection to the ground terminal of the electronic device.

[0058] The second conductive layer can be electrically connected to the ground terminal of the electronic device through the connection terminal, which can further improve the trigger sensitivity. Attached Figure Description

[0059] Figure 1 This application provides a schematic diagram of the structure of an electronic device and a keyboard according to an embodiment of the present application.

[0060] Figure 2 This application provides a schematic diagram of a keyboard covering an electronic device.

[0061] Figure 3 A schematic diagram of a keyboard structure provided in an embodiment of this application;

[0062] Figure 4 A schematic diagram of a keyboard structure provided in an embodiment of this application;

[0063] Figure 5 A cross-sectional view of a keyboard provided in an embodiment of this application;

[0064] Figure 6 This application provides a schematic diagram illustrating the connection between the keyboard and the touch display screen when the keyboard is not pressed.

[0065] Figure 7 This application provides a schematic diagram illustrating the connection relationship between the keyboard and the touch screen when the keyboard is pressed, as shown in an embodiment of the present application.

[0066] Figure 8 A cross-sectional view of a keyboard provided in an embodiment of this application;

[0067] Figure 9 A cross-sectional view of a keyboard provided in an embodiment of this application;

[0068] Figure 10 An exploded view of a keyboard provided in an embodiment of this application;

[0069] Figure 11 A cross-sectional view of a keyboard provided in an embodiment of this application;

[0070] Figure 12 A cross-sectional view of a keyboard provided in an embodiment of this application;

[0071] Figure 13 This is a schematic diagram of the structure of a first reinforcing plate for a keyboard provided in an embodiment of this application;

[0072] Figure 14 This is a schematic diagram of the structure of a first reinforcing plate for a keyboard provided in an embodiment of this application;

[0073] Figure 15 A cross-sectional view of a keyboard provided in an embodiment of this application;

[0074] Figure 16 This application provides a schematic diagram illustrating the connection relationship between the keyboard and the touch screen when the keyboard is pressed, as shown in an embodiment of the present application.

[0075] Figure 17 A cross-sectional view of a keyboard provided in an embodiment of this application;

[0076] Figure 18 A cross-sectional view of a keyboard provided in an embodiment of this application;

[0077] Figure 19 A partial structural diagram of a keyboard viewed from the rear side, provided in an embodiment of this application;

[0078] Figure 20 for Figure 19 BB cross-section;

[0079] Figure 21 for Figure 19 CC cross-section;

[0080] Figure 22 for Figure 19 DD cross-section;

[0081] Figure 23 This application provides a partial structural diagram of a keyboard viewed from the self-pressing side, as shown in an embodiment of the present application.

[0082] Figure 24 for Figure 23 EE cross-section;

[0083] Figure 25 for Figure 23 FF cross-sectional view;

[0084] Figure 26 for Figure 23 GG cross-section;

[0085] Figure 27 A cross-sectional view of a keyboard provided in an embodiment of this application;

[0086] Figure 28 A cross-sectional view of a keyboard provided in an embodiment of this application;

[0087] Figure 29 A cross-sectional view of a keyboard provided in an embodiment of this application.

[0088] Figure label:

[0089] 100-Keyboard;

[0090] 200 - Electronic devices; 201 - Touchscreen displays;

[0091] 10 - Keycap; 1 - First part; 2 - Second part; 10A - First keycap; 10B - Second keycap;

[0092] 20 - Connection part;

[0093] 30 - First reinforcing plate; 301 - First reinforcing section; 302 - Second reinforcing section;

[0094] 40 - Second reinforcing plate;

[0095] 50 - Air vent;

[0096] 60A - First Space; 60B - Second Space;

[0097] 70 - First conductive layer;

[0098] 80, 80A, 80B, 80C - Second conductive layer;

[0099] 90 - Base plate; 901 - Electrode wire; Detailed Implementation

[0100] This application provides a keyboard that can be used with an electronic device that has a touch screen or touch display. The electronic device can be a desktop computer, laptop computer, tablet computer, ultra-mobile personal computer (UMPC), handheld computer, walkie-talkie, netbook, POS machine, personal digital assistant (PDA), or other mobile terminal, fixed terminal, or foldable device.

[0101] like Figure 1 and Figure 2 As shown, the electronic device 200 has a touch screen 201. If the user wants to experience typing, they can place the keyboard 100 on the touch screen 201 to experience the typing feel provided by the electromechanical keyboard.

[0102] On some keyboards, users cannot accurately position their fingers while typing, making touch typing difficult and reducing typing speed. Alternatively, users may require a large actuation force to strike the keys, resulting in a poor user experience.

[0103] To overcome the technical problems of the above examples, embodiments of this application provide some keyboard structures, and the keyboard structures that can be implemented are as follows.

[0104] like Figure 3 and Figure 4 As shown, Figure 3 and Figure 4 This is a schematic diagram of the appearance of the keyboard 100 as an example of this application. Figure 5 It is along Figure 4 A cross-sectional view of AA.

[0105] like Figures 3 to 5 As shown, the keyboard 100 includes multiple keycaps 10, which can be arranged along two perpendicular directions. For example, the multiple keycaps 10 are arranged along... Figure 3 and Figure 4 As shown, multiple keycaps 10 are spaced apart along the X-direction, and spaced apart along the Y-direction, which is perpendicular to the X-direction. Adjacent keycaps 10 are connected by a connecting portion 20.

[0106] The keyboard has a pressing side and a back side opposite to the pressing side. The pressing side can be understood as the side away from the touch screen, and the back side can be understood as the side facing the touch screen.

[0107] See Figure 4Any keycap 10 may include a first part 1 and a second part 2; such as Figure 4 and Figure 5 The second part 2 is disposed at the edge of the first part 1, for example, the second part 2 is disposed on opposite sides of the first part 1; or, the second part 2 may be disposed around the periphery of the first part 1.

[0108] In some examples, the surface of the first part 1 can be as follows: Figure 4 The quadrilateral structure shown has a second part 2 on opposite sides of the first part 1. This can be understood as follows: the first part 1 has a first side and a second side, as well as a third side and a fourth side. The second part 2 can be set on the first side and the second side, or the second part 2 can be set on the third side and the fourth side.

[0109] In some other examples, the surface of the first part 1 can be a circular structure, with the second part 2 on opposite sides of the first part 1. This can be understood as: on the periphery of the circular surface, the opposite areas have the second part 2.

[0110] The second part 2 can be elastic and deformable, and the second part 2 protrudes towards the pressing side of the keyboard to form a protrusion.

[0111] like Figure 5 The second parts 2 of two adjacent keycaps 10 are connected by the connecting part 20, so that the two adjacent keycaps 10 are connected together. Alternatively, in some examples, the edge of the first part 1 does not have a second part 2, and the connecting part 20 can be connected to the first part 1, so that the two adjacent keycaps 10 can be connected by the connecting part 20.

[0112] like Figure 5 The second part 2 protrudes towards the pressing side of the keyboard, which can be understood as: the second part 2 protrudes towards the pressing side compared to the first part 1, that is, the surface of the second part 2 protrudes beyond the surface of the first part 1.

[0113] In some examples, such as Figure 5 The rear-facing surface of the connecting portion 20 can be closer to the touch display screen than the rear-facing surface of the first portion 1. This allows a key travel to be formed between the first portion 1 and the touch display screen.

[0114] In this application example, the second part 2 can be in a first state and a second state. When the keycap is in a non-pressed state, the second part is in the first state. When the keycap is in a pressed state, the first part 1 is displaced in the pressing direction, and the second part 2 is in the second state. When the keycap changes from the pressed state to the non-pressed state, the first part 1 rebounds in the opposite direction of the pressing direction, and the second part 2 returns to the first state.

[0115] like Figure 6 andFigure 7 As shown, Figure 6 An example diagram shows the structure when the keycaps are covered on the touch display screen and not pressed. Figure 7 An exemplary diagram illustrates the structure of a keycap covering a touchscreen display and being pressed. When the first part 1 of the keycap 1 is pressed, the elastic second part 2 can deform.

[0116] The deformed form in Part 2, 2, can be... Figure 7 As shown, it can also be in other forms. In some structures, the shape of the deformed second part 2 is related to the shape or size of the protrusion.

[0117] like Figure 6 and Figure 7 When a user needs to type, their finger will press the first part 1. Since the second part 2 is set around the outer periphery of the first part 1, the second part 2 can become the boundary of the finger's touch. In this way, the finger position can be better located, enabling touch typing and improving typing speed.

[0118] See Figure 7 When the first part 1 of the keycap 10 is pressed, the elastic second part 2 deforms. Furthermore, in this example, because the second part 2 protrudes towards the pressing side, its length can be increased compared to a non-protruding structure (e.g., ...). Figure 6 The dimension along the X direction (the second part 2) makes the protruding part 2 more elastic, which can increase the amount of deformation in the pressing direction. In this way, the user can apply a small amount of pressing force (or trigger force) for the keycap to contact the touch screen 201 to realize the typing function and improve the trigger sensitivity. In addition, when the pressing force is removed, the second part 2 accumulates a large upward rebound force. For example, under the action of a large rebound force, the keycap can rebound quickly, improving the user experience.

[0119] In some examples, the first part 1 and the second part 2 of the keycap 10 can be a one-piece molded structure. For example, it can be made of a low-modulus soft material, such as transparent silicone with a Young's modulus ≤ 0.5 GPa.

[0120] In some other structures, the first part 1, the second part 2, and the connecting part 20 can be a single-piece molded structure. For example, it can be made of a low-modulus soft material through a single-piece molding process, or it can be made of transparent silicone material with a Young's modulus ≤ 0.5 GPa. This can improve the overall aesthetic appearance of the keyboard.

[0121] In some examples, the surface of the first part 1 facing the pressing side is a plane, and the surface of the protrusion of the second part 2 facing the pressing side is a curved surface.

[0122] In some feasible structures, the thickness of the first part 1 (e.g., along) Figure 6 The thickness of the second part 2 (in the Z direction) can be greater than the thickness of the second part 2 (e.g., along the Z direction). Figure 6 (in the Z direction). This allows the second part 2 to have a larger bending deformation and the first part 1 to have greater strength, suppressing the phenomenon of unbalanced warping of the first part 1 under pressure.

[0123] like Figure 6 As shown, the maximum distance between the surface of the first part 1 facing the pressing side and the surface of the second part 2 facing the pressing side is h. For example, h can be greater than or equal to 0.1 mm and less than or equal to 0.5 mm. This enhances strength under the constraint of total trigger thickness, while increasing the length of the second part within a limited space and aiding in better finger positioning.

[0124] See you later Figure 6 The ratio of the length m1 to the height m2 of the second part 2 can be greater than or equal to 2:1 and less than or equal to 4:1. This can meet the requirements for appropriate peak pressing force and rapid rebound under large key size. For example, the actuation force of this keyboard can be 30g to 80g.

[0125] This can be understood as follows: in the button example of this application, according to design requirements, some dimensions of the protrusion in the second part 2 can be adjusted, for example, by adjusting... Figure 6 The size of the protrusion can be changed by using at least one of the parameters h, m1, and m2 shown, thereby changing the actuation force of the button.

[0126] like Figure 8 and Figure 9 As shown, Figure 8 and Figure 9 Two different keyboard structure diagrams are shown. In some examples, such as... Figure 8 A first reinforcing plate 30 can be provided on the side of the connecting part 20 away from the pressing side.

[0127] For example, the first reinforcing plate 30 can be made of a high modulus material, such as a material with a Young's modulus ≥ 1 GPa, like at least one of polycarbonate PC, acrylic, etc.

[0128] Because a first reinforcing plate 30 is provided on the side of the connecting part 20 facing the touch display screen 201, the strength of the entire keyboard can be increased, so that the keyboard does not wrinkle when placed on the touch display screen, and does not wrinkle when pressed.

[0129] In other examples, such as Figure 9Instead of providing a first reinforcing plate 30 on the side of the connecting part 20 facing the touch display screen 201, the thickness of the connecting part 20 is increased, and the strength of the entire keyboard is improved by utilizing the strength of the thicker connecting part 20 itself.

[0130] See Figure 8 and Figure 9 In some keyboards, a second reinforcing plate 40 is provided on the side of the first part 1 away from the pressing side.

[0131] The material of the second reinforcing plate 40 can be the same as or different from that of the first reinforcing plate 30. For example, the second reinforcing plate 40 can be made of a high-modulus material, such as a material with a Young's modulus ≥ 1 GPa, like at least one of polycarbonate (PC) or acrylic.

[0132] When the first part 1 of the keycap is pressed, the high-modulus second reinforcing plate 40 will not stick to the touch screen 201 and will not affect the rebound.

[0133] The second reinforcing plate 40 has a larger modulus than the first part 1, which can solve the problem of warping caused by unevenness when pressing the first part 1. In addition, when pressing the first part 1, the entire keycap can move up and down relatively uniformly, improving the user experience.

[0134] In some examples, such as Figure 8 and Figure 9 The key travel of this keyboard can be greater than or equal to 1mm. For example, ... Figure 9 The distance between the surface of the second reinforcing plate 40 facing away from the first part 1 and the surface of the touch screen 201 is the key travel of the keyboard. The key travel can be greater than or equal to 0.5mm, or the key travel can be greater than or equal to 1mm, so that the keyboard has sufficient key travel feel.

[0135] Figure 10 An exploded structural diagram of a first reinforcing plate 30, a second reinforcing plate 40, a keycap 10, and a connecting portion 20 is shown as an example. In this example, the first portion 1 and the second portion 2 of the keycap 10, and the connecting portion 20 are connected as a single unit; the multiple first reinforcing plates 30, which are corresponding to multiple keycaps, can be connected as a single unit.

[0136] Multiple second reinforcing plates 40 are separated from each other, and multiple second reinforcing plates 40 can be set one-to-one with multiple first parts 1.

[0137] To enable keycaps to rebound quickly after being pressed, this application provides some feasible structures. For example, the keycaps may also include vent holes that connect to the space enclosed by two adjacent keycaps.

[0138] like Figure 11 As shown, Figure 11 An exemplary structure for the air vent is provided. In this example, the side of the connecting portion 20 facing away from the pressing side has a first reinforcing plate 30, and the air vent 50 is disposed on the first reinforcing plate 30.

[0139] For example, multiple keycaps include a first keycap 10A and a second keycap 10B. A connecting part 20 connects the first keycap 10A and the second keycap 10B. The first keycap 10A can form a first space 60A, and the second keycap can form a second space 60B. A vent 50 provided on the first reinforcing plate 30 connects the first space 60A and the second space 60B.

[0140] like Figure 12 As shown, Figure 12 Another possible structure for the vent is provided as an example. In this example, multiple keycaps include a first keycap 10A and a second keycap 10B. A connecting portion 20 connects the first keycap 10A and the second keycap 10B. The first keycap 10A can form a first space 60A, and the second keycap can form a second space 60B. A vent 50 is disposed on the connecting portion 20, and the vent 50 connects the first space 60A and the second space 60B.

[0141] See Figure 11 and Figure 12 The air vents 50 allow for airflow and transmission between the keycaps. This prevents the keycaps from failing to rebound quickly due to a closed air chamber after being pressed, or from requiring excessive pressing force. Furthermore, the air supply after pressing allows the keycaps to rebound quickly.

[0142] In this example, the air vent 50 is located on the side of the connecting part 20 away from the pressing side, that is, the air vent 50 is hidden on the side of the keyboard facing the touch screen. In this way, the air vent is not exposed from the overall appearance of the keyboard, which can improve the aesthetics of the keyboard.

[0143] There are various ways to set the air vent 50 on the first reinforcing plate 30.

[0144] like Figure 13 One arrangement of the air guide hole 50 is shown. In this example, the first reinforcing plate 30 may include a first reinforcing section 301 and a second reinforcing section 302, and the gap between the first reinforcing section 301 and the second reinforcing section 302 forms the air guide hole 50.

[0145] For example, adjacent first keycaps and second keycaps along a first direction (e.g., along) Figure 13 The first reinforcing segment 301 and the second reinforcing segment 302 are arranged along a second direction perpendicular to the first direction (e.g., along the X direction). Figure 13The reinforcement sections 301 and 302 are arranged at intervals in the Y direction, and there is a gap between the first reinforcement section 301 and the second reinforcement section 302, which can form an air guide hole 50.

[0146] like Figure 14 Another configuration of the air vent 50 is shown, in which the air vent 50 is provided within the first reinforcing plate 30. For example, there can be one or more air vents 50.

[0147] For example, adjacent first keycaps and second keycaps along a first direction (e.g., along) Figure 14 The first reinforcing plate 30 is arranged in a second direction perpendicular to the first direction (e.g., along the X direction). Figure 14 Extending in the Y direction, the air vents 50 have multiple air vents 50, which can be arranged at intervals along the extension direction of the first reinforcing plate 30.

[0148] In some keyboard designs, multiple keycaps can be arranged along the X-direction and also along the Y-direction, which is perpendicular to the X-direction. For example, vent holes can be provided between two adjacent keycaps arranged along the X-direction; or, vent holes can be provided between two adjacent keycaps arranged along the Y-direction; or, vent holes can be provided between both two adjacent keycaps arranged along the X-direction and two adjacent keycaps arranged along the Y-direction.

[0149] To improve press sensitivity, this application also provides some feasible structures, such as... Figure 15 As shown, in this embodiment, a first conductive layer 70 can be provided on the side of the first part 1 of the keycap facing the pressing side.

[0150] like Figure 16 As shown, by setting the first conductive layer 70, the area of ​​the finger signal can be increased, the sensing area of ​​the touch screen can be increased, and thus, the pressing sensitivity can be improved.

[0151] The first conductive layer 70 can be implemented in various ways. For example, a transparent conductive layer can be obtained by applying a conductive indium tin oxide semiconductor transparent conductive film (ITO film), depositing an ITO film, spraying conductive ink, or spraying conductive silicone to form a mold.

[0152] In some examples, such as Figure 15 and Figure 16 A first conductive layer 70 may be provided on the side of the first part 1 facing the pressing side; in other examples, a first conductive layer 70 may be provided on the side of the first part 1 facing the pressing side, and on the side of the second part 2 facing the pressing side.

[0153] In some usage scenarios, there is a risk of missed recognition due to the way touch screens recognize fingers. For example, when a user touches the keyboard surface with their fingernail and presses down almost vertically rather than with their fingertip, the signal received by the touch screen is very weak because the fingertip is separated from the screen by air and the projection area is small, making it difficult to trigger the touch screen. Similarly, when typing quickly, the small projection area can also cause the touch screen to receive a weak signal. Furthermore, if a user is wearing thick gloves, the distance between their finger and the conductor in the touch screen is too great, resulting in a very weak signal received by the touch screen and making it difficult to trigger the touch screen.

[0154] This application proposes several feasible structures to improve trigger sensitivity in scenarios such as non-fingerprint pressing and rapid pressing. For example... Figure 17 As shown, the keyboard may include a second conductive layer 80, which is disposed on the side of the keycap away from the pressing side. The second conductive layers 80 on multiple keycaps can be connected to each other, that is, a second conductive layer 80 with a large area is disposed on the keyboard.

[0155] In some examples, the second conductive layer 80 can be used for electrical connection to the ground terminal of an electronic device.

[0156] This can be understood as follows: the keyboard in this application example covers the touch screen of an electronic device, and the keyboard has a pressed state and a non-pressed state. In both the pressed and non-pressed states, the second conductive layer is electrically connected to the ground terminal of the electronic device. In the non-pressed state, the second conductive layer 80 does not trigger the touch screen of the electronic device; in the pressed state, the second conductive layer 80 triggers the touch screen of the electronic device.

[0157] In some usage scenarios, since the second conductive layer is grounded, it is equivalent to the user. For example, even if the user presses the keycap with non-fingerprints through the air, the touch screen can be stably triggered, thereby improving the trigger sensitivity in scenarios such as non-fingerprint pressing and rapid pressing.

[0158] exist Figure 17 In the example, a second conductive layer 80 is provided on the side of the first part 1 away from the pressing side, a second conductive layer 80 is provided on the side of the second part 2 away from the pressing side, and a second conductive layer 80 is provided on the side of the connecting part 20 away from the pressing side.

[0159] In some examples, such as Figure 17 The second conductive layer 80 can be disposed between the first part 1 and the second reinforcing plate 40, and the second conductive layer 80 can be disposed between the connecting part 20 and the first reinforcing plate 30.

[0160] like Figure 18As shown in this example, the second conductive layer 80 can be disposed on the side of the keycap facing the pressing side, and the second conductive layers 80 on multiple keycaps can be connected to each other.

[0161] The second conductive layer 80 can be used for electrical connection to the ground terminal of an electronic device.

[0162] like Figure 18 As shown in this example, a second conductive layer 80 is provided on the side of the first part 1 facing the pressing side, a second conductive layer 80 is provided on the side of the second part 2 facing the pressing side, and a second conductive layer 80 is provided on the side of the connecting part 20 facing the pressing side. This increases the area of ​​the second conductive layer 80, thereby improving the trigger sensitivity under non-finger pressing conditions.

[0163] like Figure 17 and Figure 18 The second conductive layer 80 located on the first part 1, the second conductive layer 80 located on the second part 2, and the second conductive layer 80 located on the connecting part 20 can be connected together. For example, they can be produced by an integral molding process, such as by applying a conductive ITO film, depositing an ITO film, spraying conductive ink, using a metal mesh, or spraying conductive silicone to form a transparent second conductive layer. Figure 17 and Figure 18 In the keyboard structure shown, when a second conductive layer is included for electrical connection to the ground terminal of the electronic device, the second conductive layer cannot trigger the touch display screen when the keyboard is not pressed. When the keyboard is pressed, the second conductive layer can trigger the touch display screen.

[0164] In order to prevent the second conductive layer from triggering the touch display screen when the keyboard is not pressed, this application provides some ways to achieve this.

[0165] In some examples, triggering the touchscreen can be understood as the touchscreen receiving input signals from the keyboard, or as the touchscreen receiving signals from a finger pressing the keyboard. Not triggering the touchscreen can be understood as the touchscreen not receiving input signals from the keyboard, or as the touchscreen not receiving signals from a finger pressing the keyboard.

[0166] like Figure 19 , Figure 20 and Figure 21 ,as well as Figure 22 As shown, Figure 19 The diagram illustrates the structure of three keycaps, specifically the keycap structure viewed from the side of the keyboard away from the pressing side. Figure 20 yes Figure 19 BB cross-section diagram, Figure 21 yes Figure 19CC section diagram, Figure 22 yes Figure 19 DD cross-sectional view.

[0167] like Figure 20 As shown, a second conductive layer 80A is provided on the side of the first part 1 opposite to the pressing side. Figure 21 As shown, a second conductive layer 80B is provided on the side of the second part 2 opposite to the pressing side. Figure 22 As shown, a second conductive layer 80C is provided on the side of the connecting portion 20 away from the pressing side.

[0168] See Figure 20 In the non-pressed state, there is a gap d1 between the second conductive layer 80A and the surface of the touch display screen 201. For example, the second conductive layer 80A can also be isolated from the surface of the touch display screen 201 by the second reinforcing plate 40.

[0169] See Figure 21 The second conductive layer 80B has a gap d2 between it and the surface of the touch display screen 201. Thus, in the non-pressed state, neither the second conductive layer 80A nor the second conductive layer 80B can trigger the touch display screen.

[0170] In some examples, a second conductive layer 80C is provided on the side of the connection portion 20 away from the pressing side, and a first reinforcing plate 30 covers the second conductive layer 80C. In the non-pressing state, the second conductive layer 80C is isolated from the surface of the touch display screen 201 by the first reinforcing plate 30, and the second conductive layer 80C cannot trigger the touch display screen 201.

[0171] In other examples, such as Figure 22 The first reinforcing plate 30 may include a first reinforcing segment 301 and a second reinforcing segment 302, and the gap between the first reinforcing segment 301 and the second reinforcing segment 302 forms a vent 50. The wall surface of the connecting portion 20 that forms the vent 50 has a second conductive layer 80C. In the non-pressed state, in order to prevent the second conductive layer 80C from triggering the touch display screen 201, the second conductive layer 80C1 may have a gap d3 between it and the surface of the touch display screen 201.

[0172] In some feasible ways, when the second conductive layer is disposed on the side of the keyboard away from the pressing side, such as... Figure 20 The second conductive layer 80A can be isolated from the surface of the touch display screen 201 by the second reinforcing plate 40. The second conductive layer 80A and the surface of the touch display screen 201 have a gap d1, so that the second conductive layer 80A cannot trigger the touch display screen 201 when not pressed. Figure 21Since the second part 2 protrudes towards the pressing side compared to the first part 1, the distance d2 between the second conductive layer 80B and the touch display screen 201 is larger than d1. Thus, in the non-pressed state, the second conductive layer 80B cannot trigger the touch display screen 201.

[0173] like Figure 22 Since the distance d3 between the second conductive layer 80C and the surface of the touch display 201 is relatively small, in some examples, the second conductive layer 80C can contact the surface of the touch display 201 in the non-pressed state. However, the contact area between the second conductive layer 80C and the touch display 201 needs to be small so that the signal is weak enough to trigger the touch display 201.

[0174] like Figure 23 , Figure 24 and Figure 25 ,as well as Figure 26 As shown, Figure 23 The diagram illustrates the structure of three keycaps, specifically the keycap structure viewed from the pressing side of the keyboard. Figure 24 yes Figure 23 EE cross-sectional view, Figure 25 yes Figure 23 FF cross-section diagram, Figure 26 yes Figure 23 GG cross-sectional view.

[0175] like Figure 24 As shown, a second conductive layer 80A is provided on the side of the first part 1 facing the pressing side. Figure 25 As shown, a second conductive layer 80B is provided on the side of the second part 2 facing the pressing side. Figure 26 As shown, a second conductive layer 80C is provided on the side of the connecting portion 20 facing the pressing side.

[0176] See Figure 24 In the non-pressed state, the second conductive layer 80A is separated from the surface of the touch display screen 201 by the first portion 1 and the second reinforcing plate 40. This prevents the second conductive layer 80A from triggering the touch display screen 201 in the non-pressed state.

[0177] See Figure 25 In the non-pressed state, the second conductive layer 80B is separated from the surface of the touch display screen 201 by the second portion 2. This prevents the second conductive layer 80B from triggering the touch display screen 201 in the non-pressed state.

[0178] See Figure 26 In the non-pressed state, the second conductive layer 80C is isolated from the surface of the touch display screen 201 by the connection portion 20. This prevents the second conductive layer 80C from triggering the touch display screen 201 in the non-pressed state.

[0179] Combination Figure 19 and Figure 23 The second conductive layer 80 between two adjacent keycaps can be connected together, for example, in Figure 19 In this process, by providing a second conductive layer on the connecting portion 20 between two adjacent keycaps, the second conductive layers on different keycaps can be connected.

[0180] In some examples, the second conductive layers on all keycaps can be connected together. Increasing the area of ​​the second conductive layer can further improve the trigger sensitivity under non-finger pressing conditions.

[0181] The second conductive layer in this application example is electrically connected to the ground terminal of the electronic device. For example, a connection terminal electrically connected to the second conductive layer can be provided on the keyboard, and the connection terminal is electrically connected to the ground terminal of the electronic device.

[0182] For example, the connection terminal can be a metal contact or a USB interface. Alternatively, it can be electrically connected to the ground terminal of an electronic device wirelessly.

[0183] In the above example, the second conductive layer can be electrically connected to the ground terminal of the electronic device. In other examples, when the area of ​​the second conductive layer on the keyboard is large, it may not need to be electrically connected to the ground terminal of the electronic device.

[0184] like Figure 27 As shown, in any one of the buttons, a second conductive layer 80 is provided on the side of the first part 1 that is away from the pressing side, a second conductive layer 80 is provided on the side of the second part 2 that is away from the pressing side, and a second conductive layer 80 is provided on the side of the connecting part 20 that is away from the pressing side. And as... Figure 19 The second conductive layers on the multiple keycaps shown are connected.

[0185] like Figure 28 As shown, in any one of the buttons, a second conductive layer 80 is provided on the side of the first part 1 facing the pressing side, a second conductive layer 80 is provided on the side of the second part 2 facing the pressing side, and a second conductive layer 80 is provided on the side of the connecting part 20 facing the pressing side. And as... Figure 23 The second conductive layers on the multiple keycaps shown are connected.

[0186] In this way, the keyboard has a large area of ​​second conductive layer. When the area of ​​the second conductive layer is large, the second conductive layer has a greater ability to accumulate charge. When the keyboard is covered on the touch screen, the second conductive layer and the electrodes of the touch screen can couple to generate a large capacitance change, thereby enabling triggering.

[0187] Therefore, in some usage scenarios, such as when a user touches the keyboard surface with their fingernail and presses down almost vertically rather than with their fingertip, when typing quickly, or when a user is wearing gloves that are too thick and the distance between their finger and the conductor in the touch screen is too far, a larger second conductive layer can be used to stably trigger the touch screen, thereby improving the trigger sensitivity in scenarios such as non-fingertip pressing and rapid pressing.

[0188] Figure 29 This is a structural diagram of another keyboard provided in an embodiment of this application. In this example, the keyboard includes a first part 1, a second part 2, and a connecting part 20, and may also include a base plate 90. The base plate 90 is disposed on the side of the first part 1, the second part 2, and the connecting part 20 away from the pressing side, and the base plate 90 is connected to the connecting part 20. Electrode wires 901 are disposed within the base plate 90.

[0189] Figure 29 The example keyboard can be understood as a standalone keyboard structure. In some use cases, this keyboard does not need to be used in conjunction with a touchscreen; that is, it can be used independently, and the keyboard functions as a touchpad.

[0190] The keyboard in the example above can be placed over the touchscreen during use. Alternatively, in other scenarios, it may not need to be placed over the touchscreen; key layout and button functions can be displayed using camera recognition or laser projection.

[0191] The capacitor formed by the electrode lines 901 disposed in the base plate 90 can be a self-capacitance structure or a mutual capacitance structure. Self-capacitance is the capacitance between the sensing blocks and ground, while mutual capacitance is the capacitance between one sensing block and another.

[0192] Figure 29 The keyboard shown can provide a good signal-to-noise ratio finger signal even at a relatively high hovering distance (e.g., >15mm), enabling key presses and touch functions.

[0193] In some examples, the base plate 90 can be made of an electrochromic material. Characters can be set on the base plate.

[0194] Electrochromic materials can be understood as materials whose optical properties (reflectivity, transmittance, absorptivity, etc.) undergo stable and reversible color changes under the influence of an applied electric field. This manifests as reversible changes in color and transparency. For example, when the keyboard is electrically connected to an electronic device, the electrochromic material can change from transparent to colored, allowing characters to be displayed; when the keyboard is not electrically connected to the electronic device, the electrochromic material remains transparent.

[0195] Figure 29How to display characters in the example can be based on existing implementation methods.

[0196] Figure 29 The keyboard shown is electrically connected to the electronic device in either a wireless or wired manner.

[0197] Keyboards with different structures as shown above are not only lightweight (e.g., less than 50g) and thin (e.g., less than 2mm), making them more portable; they also allow for finger positioning when pressing, enabling touch typing and improving input efficiency. The protruding second part reduces the pressure required to press, enhancing the user experience, and the air vents are hidden inside the keyboard, preventing them from being exposed and improving its aesthetics.

[0198] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0199] 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 keyboard, characterized in that, include: Multiple keycaps, each of which includes a first part and a second part, the second part having the second part on opposite sides of the first part, and the second part protruding towards the pressing side of the keyboard to form a protrusion compared to the first part; A connecting portion, wherein the connecting portion connects the second portions of two adjacent keycaps; When the keycap is in a non-pressed state, the second part is in the first state; When the keycap is in a pressed state, the first part is displaced in the pressing direction, and the second part is in a second state; When the keycap changes from the pressed state to the unpressed state, the first part is displaced in the opposite direction to the pressing direction, and the second part returns to the first state.

2. The keyboard according to claim 1, characterized in that, The plurality of keycaps includes adjacent first keycaps and second keycaps; An air vent is provided on the side of the connecting portion between the first keycap and the second keycap that is away from the pressing side; The air vent connects to the first space enclosed by the first keycap and the second space enclosed by the second keycap.

3. The keyboard according to claim 2, characterized in that, A first reinforcing plate is provided on the side of the connecting portion opposite to the pressing side, and the air guide hole is provided on the first reinforcing plate.

4. The keyboard according to claim 3, characterized in that, The first reinforcing plate includes a first reinforcing section and a second reinforcing section; The gap between the first reinforcing section and the second reinforcing section forms the air guide hole.

5. The keyboard according to claim 2, characterized in that, The air vent is located within the connecting portion.

6. The keyboard according to any one of claims 1-5, characterized in that, The first part, the second part, and the connecting part are integrally formed.

7. The keyboard according to any one of claims 1-6, characterized in that, The surface of the first part facing the pressing side is a plane, and the surface of the protrusion facing the pressing side is an arc surface.

8. The keyboard according to any one of claims 1-7, characterized in that, A second reinforcing plate is provided on the side of the first part that is away from the pressing side.

9. The keyboard according to any one of claims 1-8, characterized in that, The second part is arranged around the periphery of the first part.

10. The keyboard according to any one of claims 1-9, characterized in that, The keyboard also includes a first conductive layer; The first conductive layer is disposed on the side of the first portion facing the pressing side.

11. The keyboard according to any one of claims 1-9, characterized in that, The keyboard also includes a second conductive layer; The second conductive layer is disposed on the side of the keycap facing the pressing side, or the second conductive layer is disposed on the side of the keycap away from the pressing side; The second conductive layer on the plurality of keycaps is connected; When the keycap is in the pressed state, the second conductive layer is used to trigger the touch display screen of the electronic device.

12. The keyboard according to claim 11, characterized in that, The keyboard also includes a connection terminal electrically connected to the second conductive layer, the connection terminal being used for electrical connection to the ground terminal of the electronic device.

13. The keyboard according to any one of claims 1-12, characterized in that, The keyboard also includes a base plate; The base plate is disposed on the side of the first part, the second part, and the connecting part away from the pressing side, and the base plate is connected to the connecting part; Electrode wires are installed inside the base plate.

14. The keyboard according to claim 13, characterized in that, The base plate is made of electrochromic material and has characters on it.

15. An electronic device, characterized in that, include: A touch display screen and a keyboard as described in any one of claims 1-14; The touch display screen is used to receive input via the keyboard.

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