Touch keycaps, keyboards and keyboard touch input modules

Abstract

The present invention relates to the technical field of keyboards and discloses a touch keycap comprising a circuit board and a keycap body. The circuit board is provided on the keycap body and / or keyboard, a touch circuit is provided on the circuit board, and a capacitive sensing touch element is electrically connected to the touch circuit, which is one or more of a touch key, a touch slider, and a touch pad. The touch circuit is provided with an MCU, and the capacitive sensing touch element is electrically connected to the MCU. The capacitive sensing touch element is located on the inner, inner, or outer surface of the top wall of the keycap body, or the capacitive sensing touch element is located on the inner, inner, or outer surface of the side wall of the keycap body, or the capacitive sensing touch element is located on the ridge of the keycap body. A keyboard using this touch keycap can increase the number of keys under a given number of key positions, and has high interaction efficiency. The present invention also discloses a keyboard touch input module that can be used in combination with a keyboard or alone.

Description

[Technical Field]

[0001] The present invention relates to the technical field of keyboards, and in particular to touch keycaps, keyboards and keyboard touch input modules. [Background technology]

[0002] A conventional keyboard is an inexpensive human-computer interaction device commonly used around the world, and typically consists of a keyboard bottom case, control circuit board, key switches, a switch positioning plate (top cover), and key caps. Since the birth of the typewriter in the early 19th century and the formation of the prototype keyboard, the operating principles and connection methods of the key switches inside the keyboard have evolved several times, from mechanical switches and capacitance detection switches to optical switches, and from wired AT interfaces, PS / 2 interfaces, and USB interfaces to wireless 2.4GHz and Bluetooth® connections. However, the interaction method between humans and keyboards has remained largely unchanged, and is still primarily based on pressing keys from top to bottom.

[0003] In recent years, some consumers have begun to adopt layouts such as 87-key (also known as 80% layout, which removes the numeric keypad area, i.e., the keypad area) instead of the standard 108-key (100%) layout, to improve the aesthetics of their desk area, ensure space for mouse movement, or simply to fit into small desks in small homes, 68-key (also known as 65% layout, which removes the function key area and slims down the navigation key area from the 80% layout, i.e., slims down the F1 to F12 keys and removes two of the Insert, Delete, Home, End, Page Up, and Page Down keys), and 61-key (also known as 60% layout, which removes the function key area and navigation key area from the 80% layout). Reducing the number of keys is a double-edged sword: while it improves space efficiency, it also increases learning costs, interaction costs (key combinations must be used to achieve the original single-key operation), and purchasing costs (production volume of the new layout is much lower than that of the 100% layout, making it difficult to achieve economies of scale during production, and the increased costs are passed on to consumers).

[0004] At the same time, keyboards with a knob on the top right corner began to become popular. Knobs offer unparalleled intuitiveness and step precision / speed compared to key operations for certain operations, such as adjusting the volume, angle of view, and zoom. However, keyboards with knobs also have the same problems of cost management and interaction efficiency (users need to take both hands out of the "typing posture").

[0005] As described above, there is a need for a keyboard that can increase the number of usable keys while maintaining a given number of keys and volume, and that does not require the user to change the "typing with both hands" hand position when operating it. Summary of the Invention [Problem to be solved by the invention]

[0006] The technical problem to be solved by the present invention is to provide a touch keycap that can increase the number of usable keys and is easy to operate, given the number of keys and volume. [Means for solving the problem]

[0007] To achieve the above object, the present invention provides a touch keycap, comprising: a circuit board and a keycap body; the circuit board is installed in the keycap body and / or a keyboard; a touch circuit is installed on the circuit board; a capacitive sensing touch element is electrically connected to the touch circuit; the capacitive sensing touch element is one or more of a touch key, a touch slider, and a touch pad; an MCU is installed in the touch circuit; the capacitive sensing touch element is electrically connected to the MCU; the capacitive sensing touch element is installed on any of the inner, inner, and outer surfaces of a top wall of the keycap body; or the capacitive sensing touch element is installed on any of the inner, inner, and outer surfaces of a side wall of the keycap body; or the capacitive sensing touch element is installed on a ridge portion of the keycap body.

[0008] In a preferred embodiment of the present invention, the circuit board includes a touch area and a mounting area, the capacitive sensing touch element is disposed in the touch area, the touch circuit is disposed in the mounting area, and the mounting area is disposed on the keycap body and / or keyboard.

[0009] In a preferred embodiment of the present invention, the circuit board is a flexible circuit board, the flexible circuit board is provided on the keycap body, the touch area is fixed to the inner surface of a side wall of the keycap, and the placement area is provided on the inner surface of the wall of the keycap body adjacent to the touch area.

[0010] At the same time, based on the above touch keycap, a keyboard is provided, which includes a control circuit board and the above touch keycap, the touch keycap is disposed at a key position of the keyboard, and the touch circuit is electrically connected to the control circuit board.

[0011] In a preferred embodiment of the present invention, the touch keycap is disposed at the outer edge key position of the keyboard, the side of the keycap body facing outward is the touch side, and the capacitive sensing touch element is disposed on either the inner surface, the inside or the outer surface of the wall of the touch side.

[0012] In a preferred embodiment of the present invention, a plurality of the touch keycaps are installed, and the capacitive sensing touch elements of the plurality of the touch keycaps are electrically connected to the same MCU, forming a touch key group.

[0013] In a preferred aspect of the present invention, a plurality of the touch key groups are provided, and each of the touch key groups is provided with one of the MCUs.

[0014] In a preferred embodiment of the present invention, the keyboard further includes an adapter, the adapter having an input interface and an output interface, the control circuit board being electrically connected to the input interface, and the output interface being used for communication with a computer.

[0015] At the same time, the present invention further provides a keyboard touch input module, which includes a circuit board, a keyboard control circuit board and / or an adapter for communication connection with a computer, a touch circuit is provided on the circuit board, and a capacitive sensing touch element is electrically connected to the touch circuit, and the capacitive sensing touch element is one or more of a touch key, a touch slider and a touch pad, and an MCU is provided on the touch circuit, and the MCU is electrically connected to the capacitive sensing touch element and the adapter respectively. [Effects of the Invention]

[0016] The touch keycap of the present invention has the following advantageous effects over the prior art: When a finger touches a portion of the keycap body corresponding to the position of the capacitive sensing touch element, the capacitive sensing touch element installed on the keycap body detects the finger touch, triggering the capacitive sensing touch element to output a signal. The signal is transmitted to the MCU, which processes it and outputs a command signal, thereby enabling the touch keycap to have a touch output function. The present invention also provides a keyboard using this touch keycap, which can increase the number of usable keys under a given number of key positions, enable the output of two or more key combinations with one finger, and enable the use of the touch slider function while maintaining the "two-handed typing" state, thereby simplifying operation and improving interaction efficiency. The touch keycap is installed at the outer edge key position of the keyboard, and the side facing outward of the keycap body is the touch side, thereby ensuring the exposure of the outer wall of the touch side of the keycap body and allowing users to trigger the touch output function of the touch keycap through touch operations. The present invention further provides a keyboard touch module, which can be combined with a keycap of a conventional keyboard to provide additional touch input functions to the conventional keyboard, or can be used alone as an additional touch keyboard. [Brief explanation of the drawings]

[0017] [Figure 1] FIG. 2 is a diagram illustrating the configuration of a touch keycap according to the present invention. [Figure 2] FIG. 2 is a diagram illustrating the configuration of FIG. 1 from another angle. [Figure 3] FIG. 10 is a diagram illustrating a configuration in which a side groove is provided at the bottom of the keycap body of the present invention. [Figure 4] 1 is a diagram illustrating the configuration of a keyboard having a touch keycap according to the present invention; [Figure 5] 10A and 10B are diagrams showing the connection relationship between the touch keycap and the control circuit board of the present invention. [Figure 6] 10A and 10B are diagrams showing the connection relationship between the touch key cap and the adapter of the present invention. [Figure 7] FIG. 2 is a diagram showing the connection relationship of the keyboard touch input module of the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0018] Specific embodiments of the present invention will be described in more detail below with reference to the drawings and examples. The following examples are intended to illustrate the present invention but are not intended to limit the scope of the present invention.

[0019] In describing the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc., as used herein, is based on the orientation or positional relationship shown in the drawings, and is intended solely for ease and simplification of description of the present invention, and does not express or imply that such devices or elements have a particular orientation or are configured or operated in a particular orientation, and therefore should not be understood as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for convenience of description, and should not be understood as expressing or implying relative importance.

[0020] 1-2, the touch keycap includes a circuit board and a keycap body 12, and the circuit board is provided on the keycap body 12 and / or the keyboard, i.e., the circuit board is provided on the keycap body 12, the keyboard, or both the keycap body 12 and the keyboard (for example, the circuit board is divided into two electrically connected parts, one of which is provided on the keycap body 12 and the other on the keyboard). The circuit board is provided with a touch circuit, which is electrically connected to a capacitive sensing touch element 111. The capacitive sensing touch element 111 may be one or more of a touch key, a touch slider, and a touch pad. The touch circuit is provided with an MCU 112, and the capacitive sensing touch element 111 is electrically connected to the MCU 112. One side of the keycap body 12 is the touch side 121, and the capacitive sensing touch element 111 is installed on either the inner surface, inner surface or outer surface of the top wall of the keycap body 12, or the capacitive sensing touch element 111 is installed on either the inner surface, inner surface or outer surface of the side wall of the keycap body 12, or the capacitive sensing touch element 111 is installed on the ridge of the keycap body 12. Furthermore, two or more capacitive sensing touch elements 111 can be installed on the same part of the keycap body 12 as long as they can be triggered normally.

[0021] The operating principle of this embodiment is as follows: When a finger approaches (touches) the capacitive sensing touch element 111, capacitive coupling occurs between the capacitive sensing touch element 111 and the finger, causing a change in the capacitance of the capacitive sensing touch element 111. By measuring this capacitance, the finger's touch can be determined. The capacitive sensing touch element 111 can reliably detect a valid finger touch even when it is separated from an insulating cover (such as glass or plastic) by 20 mm or more. Based on the above principle, when a finger touches a portion of the keycap body 12 corresponding to the position of the capacitive sensing touch element 111, the capacitive sensing touch element 111 installed on the keycap body 12 detects the finger's touch, triggering the capacitive sensing touch element 111 to emit a signal. The signal is transmitted to the MCU 112, where it is processed and then outputs a command signal. Therefore, this touch keycap 1 has an additional touch output function in addition to its original keycap function. Specifically, if the capacitive sensing touch element 111 is a touch key, the touch key can be triggered by touching a portion of the keycap body 12 corresponding to the position of the capacitive sensing touch element 111 (top, side, or ridge) with a finger, i.e., the touch keycap 1 of this embodiment has the function of a touch key. If the capacitive sensing touch element 111 is a touch slider, the touch slider can be triggered by sliding a finger over a portion of the keycap body 12 corresponding to the position of the capacitive sensing touch element 111, i.e., the touch keycap 1 of this embodiment has the function of a touch slider. If the capacitive sensing touch element 111 is a touch pad, the touch pad can be triggered by sliding a finger over a portion of the keycap body 12 corresponding to the position of the capacitive sensing touch element 111, i.e., the touch keycap 1 of this embodiment has the function of a touch pad.

[0022] When the capacitive sensing touch element 111 is installed on the inner surface (i.e., the inner surface of the top wall of the keycap body 12), the inside (i.e., the inside of the top wall of the keycap body 12, for example, a top groove is provided on the inside of the top wall of the keycap body 12, and the capacitive sensing touch element 111 is fitted into the top groove) or the outer surface (i.e., the outer surface of the top wall of the keycap body 12) of the top wall of the keycap body 12, when a finger touches the top of the keycap body 12, the capacitive sensing touch element 111 will be triggered, thereby realizing the touch output function. In order to prevent the character output from being disturbed (the output when touching the keycap body 12 and the output when pressing the keycap body 12 interfere with each other), a switch must be installed to control the start and stop of the touch function of the keycap body 12, so that after the touch function of the keycap body 12 is turned off, the keycap body 12 can be pressed normally to output characters, or the touch output signal can be blocked by software.

[0023] When the capacitive sensing touch element 111 is installed on the inner surface (inner surface) of the wall of the touch side 121 of the keycap body 12 (i.e., one side wall of the keycap body 12), the inside (i.e., the inside of the side wall of the keycap body 12, for example, as shown in FIG. 3, a side groove 122 is provided on the inside or bottom surface of the side wall of the keycap body 12, and the capacitive sensing touch element 111 is fitted into the side groove 122. In this case, for easy connection, it is necessary to provide wiring through-holes in the keycap body 12 that communicate with the inside of the keycap body 12 and the side groove 122), or the outer surface (outer surface) of the wall, or when the capacitive sensing touch element 111 is installed on the ridge of the keycap body 12, when a user presses the keycap body 12 to output a character, the capacitive sensing touch element 111 will not be triggered, and the touch function and the character output function will not interfere with each other.

[0024] For example, the circuit board includes a touch area 113 and a mounting area 114, and the capacitive sensing touch element 111 is provided in the touch area 113; that is, the touch area 113 is provided on the keycap body 12, the touch circuit is provided in the mounting area 114, and the mounting area 114 is provided on the keycap body 12 or the keyboard. The mounting area 114 may be provided at any position on the keycap body 12, or may even be provided on the control circuit board 2 or the functional daughter board of the keyboard. At this time, the mounting area 114 and the touch area 113 do not necessarily need to be integral, but may be two separate parts, and the two may be connected by a circuit board, a conductive wire, a slide rail, or a modified conductive key switch.

[0025] For example, the circuit board is a flexible circuit board 11, which is provided on a keycap body 12, with a touch area 113 fixed to the inner surface of a side wall of the keycap, and the circuit board has a folding line which divides the flexible circuit board 11 into a touch area 113 and a mounting area 114. A capacitive sensing touch element 111 is provided in the touch area 113, and a touch circuit is provided in the mounting area 114, with the touch area 113 fixed to the inner surface of the side wall of the keycap, and the mounting area 114 provided on the inner surface of the wall of the keycap body 12 adjacent to the touch area 113, that is, the flexible circuit board 11 is fixed to the inner wall of the keycap body 12 after being folded. This makes it easier for the flexible circuit board 11 to be fixed inside the keycap body 12, and prevents the flexible circuit board 11 from being compressed when the keycap body 12 is pressed down. Furthermore, since only the capacitive sensing touch element 111 is provided on the inner surface of the side wall of the keycap body 12, the touch sensing area of the capacitive sensing touch element 111 can be made to match the area of the inner surface of the side wall of the keycap body 12, thereby ensuring accurate triggering of the capacitive sensing touch element 111. In other embodiments, the mounting area 114 may be provided on the same inner surface as the touch area 113 or on a different inner surface, or may be provided on the back surface of the touch area 113, or may be provided on the inner surface of the top wall of the keycap body 12.

[0026] In addition, based on the above touch keycap 1, the present invention further provides a keyboard, which includes a control circuit board 2 and the above touch keycap 1, in which the touch keycap 1 is installed at the key position of the keyboard, and the touch circuit is electrically connected to the control circuit board 2, and when this keyboard is connected to a computer 3, the command signal sent from the MCU 112 is transmitted to the computer 3. That is, since the above touch keycap 1 is adopted as the keycap of this keyboard, this keyboard has a touch output function.

[0027] As an example, as shown in Figures 4 to 6, the touch keycap 1 is provided at the outer edge key position of the keyboard, the side facing outward of the keycap body 12 is the touch side 121, and the capacitive sensing touch member 111 is installed on either the inner surface, the inside, or the outer surface of the wall of the touch side 121 of the keycap body 12, and the outer edge key position refers to the key position close to the outer edge of the keyboard. Taking a 108-key keyboard as an example, the key positions on the outer edge are the key positions in the dashed frame in Figure 4, and the side facing outward of the keycap body 12, i.e., the side of the keycap body 12 closest to the outer edge of the keyboard, is the touch side 121. As shown in Figure 4, the front side of the keycap body 12 located at the key position of the "space bar" is the touch side 121. On the other hand, when the touch keycap 1 is attached to the outer edge key position located at the corner of the keyboard, this touch keycap 1 has two outward facing sides, and both the front side and the right side of the keycap body 12 are touch sides 121, such as the touch keycap 1 located at the key position of the "right Enter" on the keyboard. In this case, a capacitive sensing touch element 111 may be installed on one of the touch sides 121 (specifically, the inner surface, inner or outer surface, or ridge of the wall of the touch side 121), or a capacitive sensing touch element 111 may be installed on both of the touch sides 121. In this case, two capacitive sensing touch elements 111 may be installed on the two touch sides 121 , or one capacitive sensing touch element 111 may be installed on the two touch sides 121 .

[0028] The working principle of this embodiment is as follows: the touch keycap 1 is installed at the outer edge key position of the keyboard, and the side of the keycap body 12 facing outward is the touch side 121, so that the wall of the touch side 121 of the keycap body 12 is exposed, and people can perform touch operations to trigger the touch output function of the touch keycap 1.

[0029] When the capacitive sensing touch element 111 is a touch key, the touch keycap 1 can not only output the character command of the key position where it is located, but also output another character command when the capacitive sensing touch element 111 of the touch keycap body 12 is triggered. This character command can be changed by a program to suit the user's usage needs and habits. For example, if the output character command of the touch keycap 1 located at the key position of the "F4 key" is set to "Alt," when a user's finger touches the touch keycap 1 to trigger the capacitive sensing touch element 111 and simultaneously presses the touch keycap 1 (for example, when the finger touches the wall of the touch side 121 of the keycap body 12, the keycap body 12 is pulled into a pressed state due to friction), the key combination "Alt+F4" can be output. That is, the user can achieve a key combination that originally required two fingers with just one finger. Generally, for key combinations that would normally require n fingers to be pressed simultaneously, using Touch Keycap 1 reduces the number of fingers required to n / 2 (rounded up), doubling interaction efficiency.

[0030] After installing the touch keycap 1 of the present invention on a 60% layout keyboard with 61 keys, 31 keys can be added, increasing the number of keys by more than 50%, and the operation feel is significantly better than that of 65% and 80% layout keyboards without the touch keycap 1 of the present invention. After installing the touch keycap 1 of the present invention on a 100% layout keyboard with 108 keys, 39 keys can be added, increasing the number of keys by a significant 36%. The improved effects of the 65% and 80% layouts lie between the above, and the added keys can be used to complement the layout keys, or customized to be used as shortcut keys for launching applications or scripts (macros), layout switching keys, or shortcut keys for triggering commonly used key combinations, thereby significantly reducing keyboard and mouse operations.

[0031] If the capacitive sensing touch element 111 is a touch slider, functions such as volume adjustment can be realized by triggering the touch slider, and the user does not need to release the "two-handed typing" hand posture when triggering the touch slider on the touch keycap 1. For example, if the touch keycap 1 with the touch slider function is installed at the key position of the "space bar," the touch slider can be triggered with just a slight movement of the thumb, and such continuity of posture not only significantly improves interaction efficiency but also helps the user maintain mental concentration and continuity of thought during work.

[0032] If the capacitive sensing touch component 111 is a touch pad, triggering the touch pad can realize functions such as moving a mouse pointer.

[0033] For example, a plurality of touch keycaps 1 are installed, and the capacitive sensing touch elements 111 of the plurality of touch keycaps 1 are electrically connected to the same MCU 112 to form a touch key group, thereby reducing the number of MCUs 112, simplifying the circuit and reducing costs. A plurality of touch key groups are installed, and each touch key group is provided with one MCU 112. Generally, five to six capacitive sensing touch elements 111 share one MCU 112, so installing more touch keycaps 1 requires installing multiple MCUs 112.

[0034] Generally, during the manufacture of the keyboard, the touch circuit of the touch keycap 1 is directly electrically connected to the control circuit board 2, thereby achieving the connection and installation of the touch keycap 1. As an example, the keyboard of the present invention further includes an adapter 21, which is provided with an input interface and an output interface, the input interface being electrically connected to the control circuit board 2, and the output interface being used for communication connection (including wired communication connection and wireless communication connection) with the computer 3. That is, the adapter 21 is connected to the computer 3 after aligning the wiring of the control circuit board 2 with the wiring of the circuit board, thereby facilitating the replacement of the touch keycap 1. Furthermore, installing the adapter 21 makes it easy to convert a conventional keyboard into a keyboard having the touch keycap 1 of the present invention.

[0035] As shown in Figure 7, the present invention further provides a keyboard touch input module, including a circuit board and an adapter 21 for communication connection to a keyboard control circuit board 2 and / or a computer 3. The communication connection includes a wired communication connection and a wireless communication connection, such as a Bluetooth connection, a Wi-Fi connection, etc., and can be powered by an independent battery or by being connected to the keyboard battery. A touch circuit is provided on the circuit board, and a capacitive sensing touch element 111 is electrically connected to the touch circuit. The capacitive sensing touch element 111 is one or more of a touch key, a touch slider, and a touch pad. An MCU 112 is provided on the touch circuit, and the MCU 112 is electrically connected to the capacitive sensing touch element 111 and the adapter 21.

[0036] When the adapter 21 of the module is communicatively connected to the control circuit board 2 of a conventional keyboard, the module can be used in combination with the conventional keyboard to modify the conventional keyboard and provide additional touch functionality to the keyboard keycaps. When the adapter 21 of the module is communicatively connected to the computer 3, the module can be used independently and corresponds to an independent additional touch keyboard. The adapter 21 can also be communicatively connected to the keyboard control circuit board 2 and the computer 3, respectively.

[0037] The above are only preferred embodiments of the present invention, and those skilled in the art may make some improvements and substitutions without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the protection scope of the present invention. [Explanation of symbols]

[0038] 1 Touch Keycap 11 Flexible Circuit Board 111 Capacitive sensing touch element 112 MCU 113 Touch Area 114 Loading area 12 Keycap body 121 Touch side 122 Side groove 2 Control circuit board 21 Adapter 3. Computer

Claims

1. A touch keycap, 1. A touch keycap comprising: a circuit board; and a keycap body, the circuit board being mounted on the keycap body and / or a keyboard; a touch circuit being mounted on the circuit board; a capacitive sensing touch element being electrically connected to the touch circuit; the capacitive sensing touch element being one or more of a touch key, a touch slider, and a touch pad; an MCU being mounted on the touch circuit; the capacitive sensing touch element being electrically connected to the MCU; the capacitive sensing touch element being mounted on any of the inner, inner, and outer surfaces of a top wall of the keycap body; or the capacitive sensing touch element being mounted on any of the inner, inner, and outer surfaces of a side wall of the keycap body; or the capacitive sensing touch element being mounted on a ridge portion of the keycap body.

2. 2. The touch keycap of claim 1, wherein the circuit board includes a touch area and a mounting area, the capacitive sensing touch element is disposed in the touch area, the touch circuit is disposed in the mounting area, and the mounting area is disposed on the keycap body and / or keyboard.

3. The touch keycap of claim 2, characterized in that the circuit board is a flexible circuit board, the flexible circuit board is provided on the keycap body, the touch area is fixed to the inner surface of a side wall of the keycap, and the placement area is provided on the inner surface of the wall of the keycap body on the side adjacent to the touch area.

4. A keyboard, A keyboard comprising: a control circuit board; and a touch keycap according to any one of claims 1 to 3, wherein the touch keycap is provided at a key position of the keyboard, and the touch circuit is electrically connected to the control circuit board.

5. 5. The keyboard of claim 4, wherein the touch keycap is disposed at an outer edge key position of the keyboard, the side of the keycap body facing outward is the touch side, and the capacitive sensing touch element is disposed on any of the inner surface, inner surface, and outer surface of the wall of the touch side.

6. 5. The keyboard of claim 4, wherein a plurality of the touch keycaps are provided, and the capacitive sensing touch elements of the plurality of the touch keycaps are electrically connected to the same MCU, respectively, to form a touch key group.

7. 7. The keyboard according to claim 6, wherein a plurality of said touch key groups are provided, and each of said touch key groups is provided with one of said MCUs.

8. 7. The keyboard of claim 6, further comprising an adapter, the adapter being provided with an input interface and an output interface, the control circuit board being electrically connected to the input interface, and the output interface being used for communication connection with a computer.

9. A keyboard touch input module, comprising:

1. A keyboard touch input module comprising: a circuit board; and an adapter for communication connection to a keyboard control circuit board and / or a computer; a touch circuit is provided on the circuit board; a capacitive sensing touch element is electrically connected to the touch circuit; the capacitive sensing touch element is one or more of a touch key, a touch slider, and a touch pad; and an MCU is provided on the touch circuit; the MCU is electrically connected to the capacitive sensing touch element and the adapter, respectively.

Images