keyboard

Abstract

The present disclosure provides a keyboard, including: a keyboard body; at least one physical key, which is arranged on the keyboard body; at least one virtual key projection device, which is connected to the keyboard body and configured to present an image of at least one virtual key in a projection area outside the keyboard body by projection; a click detection device, which is configured to detect whether there is a finger click in the projection area and determine the virtual key clicked by the finger when the finger click is detected. The technical solution of the present disclosure can effectively reduce the size of the keyboard body and the overall size of the keyboard by setting some keys in the form of physical keys on the keyboard body and presenting another part of the keys in the form of projected virtual keys; at the same time, the keys that are not presented in the form of physical keys can be presented in the form of virtual keys, so that the input function of the keyboard will not be lost.

Description

Technical Field

[0001] The present disclosure relates to a keyboard. Background Art

[0002] A keyboard is a device for inputting commands and data to operate a device. It also refers to a set of function keys that are systematically arranged to operate a machine or device (such as a typewriter or computer keyboard). However, the keyboards currently on the market are generally large in size and not easy to carry.

[0003] In order to reduce the size of the keyboard, some manufacturers have introduced "functional keypads", such as office keypads (usually with 69 to 88 keys) that include the English keys, numeric keys, and F1 to F12 keys on the left side of the standard keyboard (with 104 keys), and numeric keypads that include the numeric keys and calculation keys on the right side of the standard keyboard. Although these "functional keypads" can reduce the size of the keyboard to a certain extent, they lose some input functions to a certain extent. Summary of the invention

[0004] The present disclosure aims to solve at least one of the technical problems existing in the prior art and provides a keyboard.

[0005] In a first aspect, an embodiment of the present disclosure provides a keyboard, comprising:

[0006] Keyboard body;

[0007] At least one physical key, wherein the physical key is arranged on the keyboard body;

[0008] At least one virtual key projection device, the virtual key projection device is connected to the keyboard body, and the virtual key projection device is configured to present an image of at least one virtual key in a projection area outside the keyboard body by projection;

[0009] A click detection device is configured to detect whether there is a finger click in the projection area and determine the virtual key clicked by the finger when the finger click is detected.

[0010] In some embodiments, the keyboard is configured to be deformable.

[0011] In some embodiments, the method further comprises:

[0012] At least one supporting connection member, one end of the supporting connection member is connected to the keyboard body, and the other end of the supporting connection member is connected to at least one of the virtual key projection devices.

[0013] In some embodiments, a receiving groove corresponding to the supporting connecting member is provided on the keyboard body, and the supporting connecting member is configured to be placed in the corresponding receiving groove and to be able to be removed from the corresponding receiving groove.

[0014] In some embodiments, a first rotation axis is disposed in the accommodating groove, and one end of the supporting connecting member is connected to the first rotation axis and can rotate around the first rotation axis.

[0015] In some embodiments, a slide rail is disposed in the receiving groove, and the supporting connector is connected to the slide rail and can move along the slide rail to extend from or retract into the receiving groove.

[0016] In some embodiments, one end of the supporting connector is connected to an edge region of the keyboard body, and the edge region includes: a peripheral region of a surface of one side of the keyboard body where the physical keys are disposed and a side surface of the keyboard body.

[0017] In some embodiments, the virtual keys include: at least one of: an F1 key, an F2 key, an F3 key, an F4 key, an F5 key, an F6 key, an F7 key, an F8 key, an F9 key, an F10 key, an F11 key, and an F12 key.

[0018] In some embodiments, the keyboard body comprises:

[0019] A rotating connection;

[0020] at least one rotating part, the rotating part is connected to the rotating connecting part through a corresponding second rotating axis, and the rotating part rotates around the second rotating axis to achieve folding deformation;

[0021] The physical button and the click detection device are arranged on the rotating part.

[0022] In some embodiments, the number of the rotating parts is two, the shape of the rotating parts is a strip, and the keyboard body is configured to be switchable between a first state and a second state;

[0023] When the keyboard body is in the first state, the center lines of the two strip-shaped rotating parts are arranged in parallel and not collinear;

[0024] When the keyboard body is in the second state, center lines of the two strip-shaped rotating parts are on the same straight line.

[0025] In some embodiments, the keyboard body further includes:

[0026] A bearing part, one end of which is fixedly connected to the rotating connecting part, and the virtual key projection device is arranged on the bearing part.

[0027] In some embodiments, the number of the rotating parts is two, the shape of the rotating parts is a strip, the shape of the bearing part is a strip, and the keyboard body is configured to be switchable between a first state and a second state;

[0028] When the keyboard body is in the first state, the center lines of the two strip-shaped rotating parts are arranged in parallel and not in a colinear relationship, and the center line of the bearing part is arranged in parallel and not in a colinear relationship with the center line of the rotating part;

[0029] When the keyboard body is in the second state, the center lines of the two strip-shaped rotating parts are on the same straight line, and the center line of the bearing part is perpendicular to the center line of the rotating part.

[0030] In some embodiments, the physical keys include: at least one of: an F1 key, an F2 key, an F3 key, an F4 key, an F5 key, an F6 key, an F7 key, an F8 key, an F9 key, an F10 key, an F11 key, and an F12 key.

[0031] In some embodiments, the virtual key projection device includes:

[0032] light source;

[0033] An image template, located at the light-emitting side of the light source;

[0034] The image template is configured to have a light-transmitting area matching the virtual key to be presented and a light-shielding area other than the light-transmitting area; or, the image template is configured to have a light-shielding area matching the virtual key to be presented and a light-transmitting area other than the light-shielding area.

[0035] In some embodiments, the light-transmitting area on the image template includes: a light-transmitting area with adjustable shape and / or size.

[0036] In some embodiments, the image template includes: a liquid crystal panel.

[0037] In some embodiments, the virtual key projection device further includes:

[0038] The collimating optical element is located between the light source and the image template or on a side of the image template facing away from the light source, and is configured to collimate the light.

[0039] In some embodiments, the virtual key projection device includes: a laser projection device, a silicon-based liquid crystal projection device or a digital mirror projection device.

[0040] In some embodiments, the virtual key projection device is configured with a switch unit, and the switch unit is used to control the virtual key projection device to work or not work.

[0041] In some embodiments, the click detection device includes:

[0042] The image acquisition unit is configured to continuously acquire images of the projection area, so that the processor can identify the virtual key clicked by the finger according to the images of the projection area acquired by the image acquisition unit.

[0043] In some embodiments, the number of the image acquisition units is 2, and the 2 image acquisition units are located at different positions on the keyboard body.

[0044] In some embodiments, the click detection device includes:

[0045] The positioning unit is configured to obtain a click position of a finger in the projection area, so that the processor can determine the virtual key clicked by the finger according to the click position and the projection positions of each virtual key.

[0046] In some embodiments, the keyboard further comprises:

[0047] The prompting device is arranged on the keyboard body and is configured to use a preset prompting method to remind the user that the click is successful when the click detection device detects that the finger clicks the virtual key.

[0048] In some embodiments, the preset prompt method includes one or more of issuing a sound prompt, issuing a light flashing prompt, increasing the display brightness of the clicked virtual key, reducing the brightness of other virtual keys adjacent to the clicked virtual key, and issuing a vibration prompt. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 A schematic top view of a keyboard provided in an embodiment of the present disclosure;

[0050] Figure 2 A schematic diagram of the structure of a virtual key projection device in an embodiment of the present disclosure;

[0051] Figure 3 Another structural schematic diagram of the virtual key projection device in the embodiment of the present disclosure;

[0052] Figure 4 It is another structural schematic diagram of the virtual key projection device in the embodiment of the present disclosure;

[0053] Figure 5 A schematic diagram of the structure of a click detection device in an embodiment of the present disclosure;

[0054] Figure 6 It is a schematic diagram of the distribution of two image acquisition units on the keyboard body in the embodiment disclosed in the present invention;

[0055] Figure 7 It is another structural schematic diagram of the click detection device in the embodiment of the present disclosure;

[0056] Figure 8 for Figure 1 A right side view of the keyboard shown;

[0057] Fig.9A A schematic top view of a supporting connecting member placed in a receiving groove;

[0058] Fig. 9B A schematic top view showing the support connecting member being moved out of the receiving groove;

[0059] Fig.10 A schematic diagram of the structure of the keyboard body in the embodiment of the present disclosure;

[0060] Fig.11 for Fig.10 A right side schematic diagram showing the keyboard body switching between a first state and a second state;

[0061] Fig.12 is another structural schematic diagram of the keyboard body in the embodiment of the present disclosure;

[0062] Fig.13 for Fig.12 The right side schematic diagram of the keyboard body switching between the first state and the second state is shown. DETAILED DESCRIPTION

[0063] In order to enable those skilled in the art to better understand the technical solution of the present disclosure, a keyboard provided by the present disclosure is described in detail below with reference to the accompanying drawings.

[0064] Figure 1 A schematic diagram of a keyboard structure provided by an embodiment of the present disclosure is shown in FIG. Figure 1 As shown, the keyboard includes: a keyboard body 1, at least one physical key 2, at least one virtual key projection device 3 and a click detection device 9.

[0065] Among them, the physical keys 2 are set on the keyboard body 1; the virtual key projection device 3 is connected to the keyboard body 1, and the virtual key projection device 3 is configured to present the image of at least one virtual key 5 in the projection area 4 outside the keyboard body 1 by projection; the click detection device 9 is configured to detect whether there is a finger click in the projection area and determine the virtual key clicked by the finger when a finger click is detected.

[0066] In the disclosed embodiment, only some keys are set on the keyboard body 1 in the form of physical keys 2, and the other keys are presented in the form of projected virtual keys 5. Since the number of physical keys 2 required to be carried on the keyboard body 1 is reduced and the space occupied by the virtual key projection device 3 is relatively small, the size of the keyboard body 1 can be effectively reduced, that is, the overall size of the keyboard is reduced. At the same time, the keys that are not presented in the form of physical keys 2 can be presented in the form of virtual keys 5, so the input function of the keyboard will not be lost.

[0067] In the embodiment of the present disclosure, some keys are arranged on the keyboard body 1 in the form of physical keys 2, so that the keyboard provided by the present disclosure also has the real clicking experience of a traditional keyboard. The physical keys 2 can be membrane keys, mechanical axis keys, etc., and the present disclosure does not limit the specific structure of the physical keys 2.

[0068] The keyboard is generally placed on a support surface, such as a desktop, when in use. The projection area 4 of the keyboard can be an area on the support surface near the area where the keyboard body 1 is located, and the image of the virtual key 5 projected by the virtual key projection device 3 is located in the projection area 4. The specific position of the projection area 4 can be pre-set according to needs.

[0069] In some embodiments, some keys with lower frequency of use can be presented in the form of virtual keys 5, such as the keys located in the function key area, generally including "F1" to "F12" keys, "Ese" key, "Print Screen key", "Scroll Lock" key, "Pause\Break" key, etc.; some keys with higher frequency of use are installed on the keyboard body 1 in the form of physical keys 2, such as the keys located in the typing area and the numeric keypad area, generally including numeric keys, letter keys, punctuation keys, space keys and other control keys. It should be noted that the above situation only serves as an example and does not limit the technical solution of the present invention. In actual applications, which keys are presented in the form of physical keys 2 and which keys are presented in the form of virtual keys 5 can be set according to actual needs.

[0070] Figure 2 FIG. 1 is a schematic diagram of a structure of a virtual key projection device in an embodiment of the present disclosure. Figure 2 As shown, in some embodiments, the virtual key projection device 3 includes: a light source 301 and an image template 302; wherein the image template 302 is located on the light output side of the light source 301, and the image template 302 is configured to have a light-transmitting area matching the virtual key 5 to be presented and a light-shielding area other than the light-transmitting area. Figure 2 The illustrated situation only exemplifies a situation in which a virtual key projection device 3 includes a light source 301 and an image template 302 and projects a virtual key 5, namely, the "F1" key.

[0071] Figure 3 FIG. 1 is another structural diagram of the virtual key projection device in the embodiment of the present disclosure. Figure 3 As shown, Figure 2 The situation shown is different. Figure 3 The virtual key projection device 3 shown includes a plurality of light sources 301 , and a plurality of light-transmitting areas are arranged on the image template 302 (a set of image templates 302 may correspond to a plurality of virtual keys 5 ), and each light-transmitting area corresponds to a virtual key 5 . Figure 3 In the illustrated case, the virtual key projection device 3 projects a plurality of virtual keys 5 , which are respectively an “F1” key, an “F2” key, an “F3” key, and the like.

[0072] Figure 4 FIG. 1 is another structural diagram of the virtual key projection device in the embodiment of the present disclosure. Figure 4 As shown, Figure 2 and Figure 3 The situation shown in Figure 4 In the illustrated case, the image template 302 is configured to have a light-shielding area that matches the virtual key 5 to be presented and a light-transmitting area other than the light-shielding area. When the image template 302 is not provided on the light-emitting side of the light source 301, the light source 301 can project a bright area with a certain shape (e.g., a circle, a rectangle, etc.) in the projection area; when the image template 302 is provided on the light-emitting side of the light source 301, the light-shielding area on the image template blocks part of the light, so as to present the image of the virtual key 5 (dark area) in the bright area with a preset shape.

[0073] In the embodiment of the present disclosure, the situations where the light-transmitting area or the light-shielding area of ​​the image template 302 matches the virtual key all fall within the protection scope of the present disclosure.

[0074] In practical applications, the number of virtual key projection devices 3 and the number and specific keys of virtual keys 5 projected by each virtual key projection device 3 can be set according to actual needs. Generally, the virtual keys 5 projected by different virtual key projection devices 3 will not overlap.

[0075] In some embodiments, the shape and size of the light-transmitting area on the image template 302 are adjustable (correspondingly, the shape and size of the light-shielding area are adjustable), that is, the virtual keys 5 projected by the same virtual key projection device 3 at different times can be the same or different.

[0076] In some embodiments, the image template 302 is a light transmittance adjustment device. Further, the image template 302 includes: a liquid crystal panel. The liquid crystal panel includes a liquid crystal box and a first polarizer and a second polarizer respectively located on opposite sides of the liquid crystal box. The liquid crystal box generally includes an array substrate, an opposing substrate, and a liquid crystal layer located between the array substrate and the opposing substrate. By controlling the deflection of liquid crystal molecules in different areas of the liquid crystal box, the transmittance of different areas in the liquid crystal box can be controlled, thereby achieving control of the position of the light-transmitting area on the liquid crystal panel. In practical applications, the light-transmitting area on the liquid crystal panel can be adjusted and changed, and only a simple processor needs to be added and the projection image data needs to be stored.

[0077] It should be noted that in some embodiments, the opposing substrate in the liquid crystal box is a color film substrate. In this case, the virtual key 5 projected by the liquid crystal panel can be a color pattern to achieve richer projection.

[0078] In some embodiments, the virtual key projection device 3 further includes: a collimating optical element (not shown); the collimating optical element is located between the light source 301 and the image template 302 or on the side of the image template 302 facing away from the light source 301, and the collimating optical element is configured to collimate the light. By providing the collimating optical element, the projection effect can be effectively improved.

[0079] Of course, the virtual key projection device 3 in the embodiment of the present disclosure is not limited to the above structure, and the virtual key projection device 3 can also be implemented in other ways. For example, the virtual key projection device 3 is specifically a laser projection device, a silicon-based liquid crystal projection device, or a digital mirror projection device, which are small in size and easy to integrate.

[0080] It should be noted that the laser projection device, silicon-based liquid crystal projection device or digital reflector projection device are conventional devices in this field, and their specific structures and projection principles are not repeated here; however, applying the laser projection device, silicon-based liquid crystal projection device or digital reflector projection to the keyboard to present the virtual key 5 is not a conventional technology in this field.

[0081] In some embodiments, the virtual key projection device 3 is provided with a switch unit, and the switch unit is used to control the virtual key projection device 3 to work or not work. That is, the user can control the working state of each virtual key projection device 3 according to actual needs. For example, for some virtual keys 5 with extremely low usage rates, the corresponding virtual key projection device 3 can be placed in a non-working state, and the corresponding virtual key projection device 3 can be controlled by the switch unit to switch to a working state only when it is needed, thereby effectively reducing the overall power consumption of the keyboard.

[0082] Figure 5 FIG. 1 is a schematic diagram of a structure of a click detection device in an embodiment of the present disclosure. Figure 5 As shown, in some embodiments, the click detection device 9 includes: an image acquisition unit 901a; wherein the image acquisition unit 901a is configured to continuously acquire images of the projection area 4, so that the processor 902a can identify the virtual key 5 clicked by the finger according to the image of the projection area 4 acquired by the image acquisition unit 901a. Specifically, the processor 902a can capture the contact click of the finger with a virtual key 5 in the corresponding area based on image processing technology.

[0083] As an example, it is possible to first identify whether a finger is in a pressed state (detect whether a finger is performing a click operation) through an image, and when a finger is detected to be performing a click operation, extract the image of the virtual key 5 in the area where the finger is located, thereby identifying the virtual key 5 clicked by the finger. Of course, the image processing method used in the embodiments of the present disclosure is not limited to the above examples.

[0084] In some embodiments, a cavity is formed in the keyboard body, and the processor 902a is disposed in the cavity; the image acquisition unit 901a is disposed on the surface of the keyboard body, and the image acquisition unit 901a can transmit data with the processor 902a via wired or wireless means.

[0085] Figure 6 FIG. 2 is a schematic diagram showing the distribution of two image acquisition units on the keyboard body in the embodiment disclosed in the present invention. Figure 6 As shown, in some embodiments, the number of image acquisition units 901a is two, and the two image acquisition units 901a are located at different positions on the keyboard body 1. Figure 7 For example, the two image acquisition units 901a are located at two different positions on the left and right of the keyboard body 1. The two image acquisition units 901a transmit the acquired images of the projection area 4 to the processor 902a, and the processor 902a performs processing operations to resolve the information of the virtual key 5 clicked by the finger. The design of the two image acquisition units 901a can more easily locate the finger click position and improve the detection accuracy.

[0086] In some embodiments, the image acquisition unit 901a may be a structure or device having an image acquisition function, such as a camera or an optical sensor.

[0087] Figure 7 FIG. 1 is another structural diagram of the click detection device in the embodiment of the present disclosure. Figure 7 As shown, in some embodiments, the click detection device 9 includes: a positioning unit 901b. The positioning unit 901b is configured to obtain the click position of the finger in the projection area 4, so that the processor 902b can determine the virtual key 5 clicked by the finger according to the click position and the projection position of each virtual key 5.

[0088] At any time, the virtual keys 5 and their positions presented in the projection area 4 of the keyboard are known, so it is only necessary to determine the click position of the finger in the projection area 4 to determine the virtual key 5 clicked by the finger.

[0089] The positioning unit 901b in the embodiment of the present disclosure may specifically be an optical positioning device (eg, a laser positioning device), a radio positioning device (eg, a sonic positioning device, a device positioning device), etc. The technical solution of the present disclosure does not limit the specific structure and positioning principle of the positioning unit 901b.

[0090] It should be noted that Figure 5 and Figure 7 The specific structure of the click detection device 9 shown is only for illustrative purposes and does not limit the technical solution of the present disclosure. Of course, the click detection device 9 in the embodiment of the present disclosure can also use the click detection principle of the existing projection keyboard to detect and identify the virtual key 5 clicked by the finger, which will not be repeated here.

[0091] In some embodiments, the keyboard further includes: a prompt device (not shown), which is disposed on the keyboard body 1 , and is configured to use a preset prompt method to remind the user that the click is successful when the click detection device 9 detects that a finger clicks the virtual key 5 .

[0092] In some embodiments, the preset prompt method includes one or more of the following methods: 1) issuing a sound prompt; 2) issuing a light flashing prompt; 3) increasing the display brightness of the clicked virtual key; 4) reducing the brightness of other virtual keys adjacent to the clicked virtual key; 5) issuing a vibration prompt.

[0093] Of course, the above-mentioned prompting device can also be configured to use a preset prompting method to remind the user that the click is successful when the finger clicks the physical button 2. This method can improve the user experience to a certain extent.

[0094] In some embodiments, the keyboard is configured to be deformable. Specifically, the keyboard being “deformable” means that at least some components on the keyboard are foldable, movable (e.g., telescopic, rotatable), etc. This will be described in detail below with reference to the accompanying drawings.

[0095] Figure 8 for Figure 1 A right view of the keyboard shown, such as Figure 8 As shown, in some embodiments, a movable and deformable structure is provided in the keyboard. Specifically, the keyboard includes not only the keyboard body 1, the physical keys 2 and the virtual key projection device 3, but also at least one movable supporting connection member 6.

[0096] One end of the supporting connector 6 is connected to the keyboard body 1, and the other end of the supporting connector 6 is connected to at least one virtual key projection device 3. The supporting connector 6 supports the virtual key projection device 3 and connects the keyboard body with the virtual key projection device 3.

[0097] In some embodiments, one end of the supporting connector 6 is connected to the edge area of ​​the keyboard body 1, and the edge area includes: the peripheral area of ​​the surface of one side of the keyboard body 1 where the physical keys 2 are arranged (see below); Fig.9A and Fig. 9B ) and the side of the keyboard body 1 (corresponding drawings are not shown).

[0098] In some embodiments, when the above-mentioned movable supporting connection member is provided in the keyboard, the virtual keys include: at least one of: F1 key, F2 key, F3 key, F4 key, F5 key, F6 key, F7 key, F8 key, F9 key, F10 key, F11 key, and F12 key.

[0099] Fig.9A A top view schematically showing the supporting connecting member 6 being placed in the receiving groove 7. Fig. 9B A top view schematically showing the support connecting member 6 being moved out of the receiving groove 7, as shown in FIG. Fig.9A and Fig. 9B As shown, in some embodiments, an edge area of ​​the keyboard body 1 is provided with a receiving groove 7 corresponding to the supporting connector 6 , and the supporting connector 6 is configured to be placed in the corresponding receiving groove 7 and to be able to be moved out of the corresponding receiving groove 7 .

[0100] As an alternative implementation, continue to see Fig.9A and Fig. 9B As shown, a first rotating shaft 8 is provided in the accommodating groove 7, one end of the supporting connecting member 6 is connected to the first rotating shaft 8 and can rotate around the first rotating shaft 8; by rotating the first rotating shaft 8, the supporting connecting member 6 can be moved out of the accommodating groove 7 or placed in the accommodating groove 7.

[0101] As another optional embodiment, the supporting connector 6 is connected to the slide rail and can move along the slide rail to extend or retract from the receiving groove 7. No corresponding drawings are shown in this case.

[0102] In some embodiments, an elastic structure (not shown) and a limiting structure (not shown) may be provided in the receiving groove 7, and a mechanical button (not shown) connected to the limiting structure may be provided outside the receiving groove 7. When the supporting connector 6 is placed in the receiving groove 7, the supporting connector 6 squeezes the elastic structure and the limiting structure limits the movement of the supporting connector 6 out of the receiving groove 7; when the supporting connector 6 needs to be moved out, the limiting structure cancels the limiting function by pressing the mechanical button, and under the elastic force of the elastic structure, the supporting connector 6 is moved out of the receiving groove 7 by rotation, linear motion or other means.

[0103] Of course, it is also possible that the above-mentioned elastic structure, limiting structure and mechanical button are not required, and the storage or removal of the supporting connecting member 6 is manually controlled.

[0104] It should be noted that the position of the receiving groove 7 in the embodiment of the present disclosure is not limited to the side of the keyboard body carrying the physical key 2 as shown in the drawings, and the receiving groove 7 can also be arranged at other positions, such as the side of the keyboard body.

[0105] Fig.10 Schematic diagram of a keyboard body in the embodiment of the present disclosure. Fig.10 As shown, in some embodiments, a foldable and deformable structure is provided in the keyboard. Specifically, the keyboard body 1 is configured to be foldable and deformable, so that the keyboard occupies a smaller space when not in use, and is easy to carry.

[0106] In some embodiments, the keyboard body 1 includes: a rotating connection part 101 and at least one rotating part 102. The rotating part 102 is connected to the rotating connection part 101 through a corresponding second rotating shaft 103, and the rotating part 102 rotates around the second rotating shaft 103 to achieve folding deformation; the physical key 2 and the click detection device 9 are arranged on the rotating part 102. Fig.10 In the illustrated solution, there is no restriction on the location of the virtual key projection device.

[0107] In some embodiments, when the keyboard body 1 includes the above-mentioned rotating connection part 101 and the rotating part 102, the physical keys include: at least one of: F1 key, F2 key, F3 key, F4 key, F5 key, F6 key, F7 key, F8 key, F9 key, F10 key, F11 key, and F12 key.

[0108] Fig.11 for Fig.10 The right side schematic diagram of the keyboard body switching between the first state and the second state is shown in FIG. Fig.11As shown, as a specific optional example, the number of rotating parts 102 is two, the shape of the rotating parts 102 is strip-shaped, and the keyboard body 1 is configured to be able to switch between a first state and a second state; wherein, when the keyboard body 1 is in the first state, the center lines of the two strip-shaped rotating parts 102 are arranged in parallel and are not collinear; when the keyboard body 1 is in the second state, the center lines of the two strip-shaped rotating parts 102 are on the same straight line. When the keyboard is not in use, the two rotating parts 102 rotate to a closed state (i.e., the first state) for easy carrying; when the keyboard needs to be used, the two rotating parts 102 rotate to an open state (i.e., the second state) for easy use.

[0109] Fig.12 is another structural schematic diagram of the keyboard body in the embodiment of the present disclosure, Fig.13 for Fig.12 The right side schematic diagram of the keyboard body switching between the first state and the second state is shown in FIG. Fig.12 and Fig.13 As shown, in some embodiments, the keyboard body 1 includes not only the above-mentioned rotating connection part 101 and the rotating part 102, but also includes a bearing part 104, one end of the bearing part 104 is fixedly connected to the rotating connection part 101, and the virtual key projection device 3 is arranged on the bearing part 104.

[0110] In some embodiments, the bearing portion 104 is in the shape of a strip, the number of the rotating portions 102 is two, the rotating portions 102 are in the shape of a strip, the bearing portion 104 is in the shape of a strip, and the keyboard body 1 is configured to be switchable between a first state and a second state. When the keyboard body 1 is in the first state, the center lines of the two strip-shaped rotating portions 102 are arranged in parallel and not in a colinear line, and the center line of the bearing portion 104 is arranged in parallel and not in a colinear line with the center line of the rotating portion 102; when the keyboard body 1 is in the second state, the center lines of the two strip-shaped rotating portions 102 are in the same straight line, and the center line of the bearing portion 104 is perpendicular to the center line of the rotating portion 102.

[0111] It should be noted that, in some other embodiments, each physical key and each virtual key projection device can also be selectively arranged on the rotating part and the bearing part; of course, the supporting connector, the receiving slot, the click detection device, the prompt device and other structures in the aforementioned embodiments can also be selectively arranged on the rotating part and the bearing part according to actual conditions. The present disclosure does not limit the specific arrangement scheme.

[0112] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present disclosure, but the present disclosure is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and substance of the present disclosure, and these modifications and improvements are also considered to be within the scope of protection of the present disclosure.

Claims

1. A keyboard, characterized in that: include: Keyboard body; At least one physical key, wherein the physical key is arranged on the keyboard body; At least one virtual key projection device, the virtual key projection device is connected to the keyboard body, and the virtual key projection device is configured to present an image of at least one virtual key in a projection area outside the keyboard body by projection; A click detection device, the click detection device is configured to detect whether there is a finger click in the projection area and determine the virtual key clicked by the finger when the finger click is detected; The keyboard body comprises: a rotating connection part; at least one rotating part, the rotating part is connected to the rotating connection part through a corresponding second rotating shaft, and the rotating part rotates around the second rotating shaft to achieve folding deformation; the physical key and the click detection device are arranged on the rotating part; The keyboard body further comprises: a bearing part, one end of which is fixedly connected to the rotating connection part, and the virtual key projection device is arranged on the bearing part.

2. The keyboard according to claim 1, characterized in that The keyboard is configured to be deformable.

3. The keyboard according to claim 2, characterized in that: Also includes: At least one supporting connection member, one end of the supporting connection member is connected to the keyboard body, and the other end of the supporting connection member is connected to at least one of the virtual key projection devices.

4. The keyboard according to claim 3, characterized in that: The keyboard body is provided with a receiving groove corresponding to the supporting connecting member, and the supporting connecting member is configured to be placed in the corresponding receiving groove and to be moved out from the corresponding receiving groove.

5. The keyboard according to claim 4, characterized in that: A first rotating shaft is arranged in the accommodating groove, and one end of the supporting connecting member is connected to the first rotating shaft and can rotate around the first rotating shaft.

6. The keyboard according to claim 4, characterized in that: A slide rail is arranged in the receiving groove, and the supporting connecting member is connected to the slide rail and can move along the slide rail to extend out of or retract from the receiving groove.

7. The keyboard according to any one of claims 3 to 6, characterized in that: One end of the supporting connection member is connected to an edge area of ​​the keyboard body, and the edge area includes: a peripheral area of ​​a surface on one side of the keyboard body where the physical keys are arranged, and a side surface of the keyboard body.

8. The keyboard according to any one of claims 3 to 6, characterized in that: The virtual keys include: at least one of: an F1 key, an F2 key, an F3 key, an F4 key, an F5 key, an F6 key, an F7 key, an F8 key, an F9 key, an F10 key, an F11 key, and an F12 key.

9. The keyboard according to claim 1, characterized in that: The number of the rotating parts is two, the shape of the rotating parts is strip-shaped, and the keyboard body is configured to be switchable between a first state and a second state; When the keyboard body is in the first state, the center lines of the two strip-shaped rotating parts are arranged in parallel and not collinear; When the keyboard body is in the second state, center lines of the two strip-shaped rotating parts are on the same straight line.

10. The keyboard according to claim 1, characterized in that: The number of the rotating parts is two, the shape of the rotating parts is a strip, the shape of the bearing part is a strip, and the keyboard body is configured to be switchable between a first state and a second state; When the keyboard body is in the first state, the center lines of the two strip-shaped rotating parts are arranged in parallel and not in a colinear relationship, and the center line of the bearing part is arranged in parallel and not in a colinear relationship with the center line of the rotating part; When the keyboard body is in the second state, the center lines of the two strip-shaped rotating parts are on the same straight line, and the center line of the bearing part is perpendicular to the center line of the rotating part.

11. The keyboard according to claim 9 or 10, characterized in that: The physical keys include: at least one of: an F1 key, an F2 key, an F3 key, an F4 key, an F5 key, an F6 key, an F7 key, an F8 key, an F9 key, an F10 key, an F11 key, and an F12 key.

12. The keyboard according to claim 1, characterized in that: The virtual key projection device comprises: light source; An image template, located at the light-emitting side of the light source; The image template is configured to have a light-transmitting area matching the virtual key to be presented and a light-shielding area other than the light-transmitting area; or, the image template is configured to have a light-shielding area matching the virtual key to be presented and a light-transmitting area other than the light-shielding area.

13. The keyboard according to claim 12, characterized in that: The light-transmitting area on the image template includes: a light-transmitting area with adjustable shape and / or size.

14. The keyboard according to claim 13, characterized in that: The image template includes: a liquid crystal panel.

15. The keyboard according to claim 12, characterized in that: The virtual key projection device also includes: The collimating optical element is located between the light source and the image template or on a side of the image template facing away from the light source, and is configured to collimate the light.

16. The keyboard according to claim 1, characterized in that The virtual key projection device includes: a laser projection device, a silicon-based liquid crystal projection device or a digital reflector projection device.

17. The keyboard according to claim 1, characterized in that The virtual key projection device is provided with a switch unit, and the switch unit is used to control the virtual key projection device to work or not work.

18. The keyboard according to claim 1, characterized in that The click detection device comprises: The image acquisition unit is configured to continuously acquire images of the projection area, so that the processor can identify the virtual key clicked by the finger according to the images of the projection area acquired by the image acquisition unit.

19. The keyboard according to claim 18, characterized in that The number of the image acquisition units is 2, and the 2 image acquisition units are located at different positions on the keyboard body.

20. The keyboard according to claim 1, characterized in that The click detection device comprises: The positioning unit is configured to obtain a click position of a finger in the projection area, so that the processor can determine the virtual key clicked by the finger according to the click position and the projection positions of each virtual key.

21. The keyboard according to claim 1, characterized in that Also includes: The prompting device is arranged on the keyboard body and is configured to use a preset prompting method to remind the user that the click is successful when the click detection device detects that the finger clicks the virtual key.

22. The keyboard according to claim 21, characterized in that The preset prompting method includes one or more of issuing a sound prompt, issuing a light flashing prompt, increasing the display brightness of the clicked virtual key, reducing the brightness of other virtual keys adjacent to the clicked virtual key, and issuing a vibration prompt.

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