CN201876857U - Input device based on multi-finger capacitance touch technology - Google Patents

Abstract

The utility model relates to an input device based on multi-finger touch technology. The device includes a touch panel for receiving input signals; a touch signal microprocessor for receiving output signals of the touch panel; and a touch signal microprocessor for processing the touch signals. A gesture analysis module for analyzing the output signal of the device; and a communication module for receiving the output signal of the gesture analysis module; the device and method are easy to use, and both hands can obtain inputs such as keys and coordinate positioning within a small moving range.

Description

An input device based on multi-finger capacitive touch technology

technical field

The utility model relates to a human-machine input method and device, in particular to a computer, mobile phone, palmtop computer, electronic book or other artificial intelligence systems.

Background technique

Traditional handheld computers, mobile phones, and e-books mainly rely on keyboards for input, while computers, including desktop computers and portable notebook computers, mainly rely on keyboards and mice for man-machine communication.

With the gradual maturity of multi-finger capacitive touch technology, human-machine input devices with touch control as the main body have been widely promoted and applied in intelligent systems including personal computers, palmtop computers, mobile phones, and e-books. Touch technology brings more and more convenient new operating experience to users. Various touch gestures make the communication between the operator and the intelligent system smoother and more in line with human action habits. The current touch sensor is completely overlapped with the display screen and has an integrated structure. Its advantage is that what you see is what you touch, and it is convenient for precise finger positioning. Air bubbles and other requirements are particularly high, so the cost has been high; when keyboard input is required, the corresponding virtual keyboard must be displayed on the screen for positioning, so it occupies a certain display area and reduces the effective display area; Fingerprints and oil stains are left, resulting in a decrease in display performance.

The input system used by the computer usually includes a keyboard and a mouse, wherein the keyboard includes a mechanical button type and an inductive button type, and the mouse includes a mechanical type and a photoelectric type, etc. Some portable notebook computers are also equipped with a touch pad to realize the mouse operation function. Most keyboards and mice have the problems of large size, easy to get dirty, hard to clean, and inconvenient to operate. Therefore, new technologies of flat keyboard and flat mouse based on touch technology have appeared, but there are still problems of inconvenient use and space occupation. . However, the technology of collecting finger motions by using touch keyboard button sensing has low finger movement sensitivity and cannot accurately locate the problem.

The utility model utilizes the high-sensitivity multi-finger capacitive touch control technology, utilizes its precise positioning to realize keyboard input and multi-finger touch human-machine input at the same time, and solves the problems existing in the above-mentioned technology.

Contents of the invention

Technical problem: The purpose of this utility model is a human-machine input device based on multi-finger capacitive touch technology, and the method and device are easy to use.

Technical solution: In order to solve the above technical problems, the technical solution provided by the utility model is: the device includes a touch panel for receiving input signals; a touch signal microprocessor for receiving output signals of the touch panel; A gesture analysis module for analyzing the output signal of the signal microprocessor; a communication module for receiving the output signal of the gesture analysis module and sending a signal to the back-end host; the touch panel includes a capacitive touch sensor and a cover covering the capacitive touch sensor The protective panel, the capacitive touch sensor includes an insulating plate and row scanning electrodes and column scanning electrodes arranged on the insulating plate, and the row scanning electrodes and column scanning electrodes are connected to the touch signal microprocessor; wherein the functional area is located at the front of the touch panel or On both sides, one or more buttons or virtual buttons can be set;

The touch panel includes an input area and a function area; the input area of the touch panel includes a left-hand area and a right-hand area,

The function area is located on the touch panel, and virtual keys are set in the function area, and the virtual keys are used for function keys and to control the touch response of the input area to switch between keyboard input, touch input and other extended functions.

Preferably, the sensing area in the row scanning electrode and the column scanning electrode is a straight line, a rhombus or a curved line; wherein the row scanning electrode and the column scanning electrode are respectively arranged on both sides of the insulating plate, or are arranged on the same side of the insulating plate,

The intersections of the row scanning electrodes and the column scanning electrodes are connected through conductive via holes or through conductive bridges made on the surface.

Preferably, the insulating plate is transparent glass, polycarbonate, polymethacrylate or polyethylene phthalate transparent organic polymer plate or film, or is an opaque ceramic plate, plexiglass plate or is used for The base material for manufacturing printed circuit boards, the thickness is 0.01~3mm.

Preferably, the protective panel of the touch panel is made of toughened glass, surface-hardened plexiglass or a ceramic plate material similar to a plate.

Beneficial effect:

⑴Easy to use, both hands can obtain input such as keys and coordinate positioning within a small movement range.

⑵ More operation methods.

⑶ Touch input does not occupy the display area of the system.

⑷Lightweight, portable, easy to clean and long service life.

Description of drawings

Fig. 1 is a kind of man-machine input device schematic diagram provided by the utility model;

Fig. 2 is the structural representation of the capacitive touch panel used by the utility model;

Fig. 3a is a schematic structural diagram of a double-sided scanning electrode capacitive touch sensor used in the present invention;

Fig. 3b is a schematic structural diagram of a capacitive touch sensor with a single-sided bridge scanning electrode used in the present invention;

Fig. 3c is a structural schematic diagram of a capacitive touch sensor with a single-sided via-hole scanning electrode used in the present invention;

Fig. 4 is a schematic diagram of the scanning electrode structure of the capacitive touch sensor used in the present invention;

Fig. 5 is a schematic flow chart of a human-machine input method provided by the present invention;

FIG. 6 is a schematic diagram of area division of the touch panel in Embodiment 3;

FIG. 7 is a schematic diagram of area division of the touch panel in Embodiment 4;

FIG. 8 is a schematic diagram of area division of the touch panel in Embodiment 5. FIG.

Among them, the symbols in the figure respectively represent the touch panel 1, the touch signal microprocessor 2, the gesture analysis module 3, the communication module 4; the protection panel 5, the capacitive touch sensor 6, the insulating plate 7, the row scanning electrode 8, and the column scanning electrode 9. Virtual key 10, input area 1a, function area 1b, left-hand area 1a-L, right-hand area 1a-R, conductive via 7a, insulating layer 7b, conductive bridge 7c.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described.

The human-machine input method and device based on multi-finger capacitive touch technology provided by the utility model, the device includes a touch panel 1 for receiving input signals; a touch signal microprocessor 2 for receiving output signals of the touch panel 1 ; a gesture analysis module 3 for analyzing the output signal of the touch signal microprocessor 2; and a communication module 4 for receiving the output signal of the gesture analysis module 3 and sending the signal to the backend host.

The touch panel 1 includes a capacitive touch sensor 6 and a protective cover covering the capacitive touch sensor 6.

Shield 5. The capacitive touch sensor 6 includes an insulating board 7 and row scanning electrodes 8 and column scanning electrodes 9 disposed on the insulating board 7 . The row scan electrodes 8 and column scan electrodes 9 are connected to the touch signal microprocessor 2; the functional area 1b is located at the front or both sides of the touch panel 1, and one or more keys or virtual keys can be set.

The touch panel 1 includes an input area 1a and a function area 1b; the input area 1a of the touch panel 1 includes a left-hand area 1a-L and a right-hand area 1a-R, and the function area 1b is located on the touch panel 1 to set a virtual key 10 .

The sensing area in the row scanning electrode 8 and the column scanning electrode 9 is a straight line, a rhombus or a curved line;

Wherein the row scanning electrode 8 and the column scanning electrode 9 can be respectively arranged on both sides of the insulating plate 7, and can also be arranged on the same side of the insulating plate 7,

The intersections of the row scanning electrodes 8 and the column scanning electrodes 9 are connected through the conductive via holes 7a through the conductive bridge 7c or the insulating layer 7b made on the surface is connected through the conductive bridge 7c.

Insulation plate 7 can be transparent glass, polycarbonate, polymethacrylate or polyethylene phthalate transparent organic polymer plate or film, also can be opaque ceramic plate, plexiglass plate, for manufacturing Substrate of printed circuit board, thickness 0.01~3 mm;

The protective panel 5 of the touch panel 1 can be made of materials such as tempered glass, surface-hardened organic glass or similar plates, ceramic plates and the like.

The man-machine input method based on multi-finger touch technology provided by the utility model comprises the following steps:

The touch signal microprocessor 2 judges the position corresponding to the finger on the touch sensor 6 by detecting, and outputs the motion information signal of the hand to the gesture analysis module 3 by encoding; the gesture analysis module 3 judges the touch gesture and clicks the virtual keyboard according to the aforementioned signal Buttons, combinations of multiple virtual keyboards 10 and other buttons send information to the communication module 4 through encoding; the communication module realizes communication with the host.

When the finger selects the keyboard input in the functional area 1b, the gesture analysis module 3 finds the corresponding key value in the coordinate lookup table at the position of the finger in the control input area 1a; Key actions such as tapping and long pressing or key combination; at the same time, invalid actions such as sliding of the finger on the input area 1a are shielded; the above-mentioned key realizes keyboard communication with the host through the communication module 4; when the finger selects touch input in the functional area 1b, Gesture analysis module 3 converts information such as the finger index, position, and speed of the finger in the control input area 1a into corresponding touch actions such as sliding, clicking, double-clicking, sliding after clicking, leaving, and leaving after sliding with a single finger or multiple fingers; Realize touch communication with the host through the communication module 4; when the finger selects special function keys such as power switch and volume adjustment in the functional area 1b, the gesture analysis module 3 sends corresponding instructions to the host through the communication module 4.

The touch signal microprocessor 2 detects and judges the corresponding position of the finger on the touch sensor 6, and the hand motion information output to the gesture analysis module 3 through encoding includes touch finger index, corresponding touch coordinates and touch pressure information;

Gesture analysis module 3 judges according to aforementioned signal and comprises touch gesture and comprises each finger coordinate, moving direction and speed, finger single-click or double-click, drag after clicking,

The communication module 4 sends instructions through wired, wireless, infrared and other means according to the communication protocol with the host to realize communication with the host.

Specifically, the touch panel 1 is composed of a protective panel 5 and a capacitive touch sensor 6. The capacitive touch sensor 6 includes an insulating plate 7 and row scanning electrodes 8 and column scanning electrodes 9 made on both sides of the insulating plate. The electrodes are connected to the touch signal microprocessor 2; the touch signal microprocessor 2 performs high-speed scanning row by row and column by row, and judges that the finger is on the capacitive touch sensor panel by detecting that the capacitance of the scanning electrode has been changed due to the contact of the human finger. The position of each finger is output to the gesture analysis module 3 through coding, including information such as touch finger index, corresponding touch coordinates and touch pressure; the gesture analysis module 3 judges according to the aforementioned signals including each finger coordinates, moving direction and speed, single click or double click of the finger, Various touch gestures such as clicking and dragging, clicking virtual keyboard buttons, multiple virtual keyboard combinations, etc., send information to the communication module through coding; the communication module sends information through wired, wireless, infrared, etc. according to the communication protocol with the host command to realize the communication between the man-machine input device of the present invention and the host computer.

Wherein the protective panel 5 of the touch panel 1 can adopt materials such as toughened glass, surface-hardened plexiglass or similar plates, ceramic plates, etc., on the protective panel 5, make a visible virtual keyboard pattern by screen printing, engraving, etc., including Alphabet keys, number keys and other various function keys are used for keyboard input and positioning. In order to facilitate the user's touch and positioning, the corresponding key positions can be made with slight protrusions or depressions.

The above-mentioned electronic circuit system can be powered by ordinary batteries, rechargeable batteries or external cables.

Example 1:

As shown in FIG. 1 , a human-machine input device based on multi-finger touch technology includes a touch panel 1 , a touch signal microprocessor 2 , a gesture analysis module 3 and a communication module 4 .

The working method of the above-mentioned man-machine input device based on the multi-finger capacitive touch technology is as follows: the touch signal microprocessor 2 judges the corresponding position of the finger on the touch sensor panel through detection, and outputs to the gesture analysis module 3 through coding, including the touch hand. Index, corresponding touch coordinates and touch pressure and other information; Gesture analysis module 3 judges various touch gestures including each finger coordinate, moving direction and speed, finger click or double click, drag after clicking, and click virtual according to the aforementioned signals. Keys such as keyboard keys and multiple virtual keyboard combinations send information to the communication module 4 through encoding; the communication module 4 sends instructions through wired, wireless, infrared, etc. according to the communication protocol with the host, to realize the man-machine input device of the present invention and the host communication.

Example 2:

The structure of the touch panel 1 described in Implementation 1 is shown in Figure 2 and Figures 3a-3c, and is composed of a protective panel 5 and a capacitive touch sensor 6. The capacitive touch sensor 6 includes an insulating plate 7 and Row scan electrode 8 and column scan electrode 9, row scan electrode 8 and column scan electrode 9 are connected with touch signal microprocessor 2, wherein the sensing area in row scan electrode 8 and column scan electrode 9 can be rhombus, as shown in Figure 4 As shown, it can also be a straight line or a curved line; wherein the row scanning electrodes 8 and the column scanning electrodes 9 can be fabricated on both sides of the insulating plate 7 respectively, or can be fabricated on the same side of the insulating plate 7, and the intersections pass through the conductive via holes 7a Conductive bridge 7c connection or surface making insulating layer 7b is connected by conductive bridge 7c; It can be an opaque ceramic plate, a plexiglass plate, and a substrate for manufacturing printed circuit boards PCB, with a thickness of 0.01 to 3 mm; the row scanning electrodes 8 and column scanning electrodes 9 can be indium tin oxide (ITO), zinc oxide, etc. The transparent conductive film material can also be conductive materials such as copper, silver, gold, graphite, carbon nanotubes, etc.

The working method of the above-mentioned man-machine input device based on the multi-finger touch technology is shown in Figure 5: the touch signal microprocessor 2 scans the row scanning electrodes 8 and the column scanning electrodes 9 row by row and row by row at high speed sequentially, and detects due to The contact of the human finger changes the capacitance of the scanning electrodes 8 and 9 to determine the corresponding position of the finger on the capacitive touch sensor panel, and outputs information including the touch finger index, corresponding touch coordinates and touch pressure to the gesture analysis module 3 through coding; Analysis module 3 judges various touch gestures including each finger coordinate, moving direction and speed, finger single-click or double-click, drag after clicking according to the aforementioned signals, and buttons such as clicking a virtual keyboard button and a plurality of virtual keyboard combinations, and sends The communication module 4 sends information; the communication module 4 encodes according to the communication protocol with the host, and sends instructions through wired, wireless, infrared, etc., to realize the communication between the man-machine input device of the present invention and the host.

Example 3:

As shown in Figure 6, the touch panel 1 in Embodiments 1 and 2 can be divided into an input area 1a and a functional area 1b; wherein the functional area 1b is located at the front or both sides of the touch panel 1, and one or more keys or The virtual key 10, the virtual key can utilize the touch scanning area contained in the row and column scanning electrodes, and can also make an independent sensing electrode directly connected to the touch signal microprocessor 2, which is used for special function keys such as power switch, volume adjustment, and control of the input area 1a. Touch response toggles between keyboard input, touch input, and other extended functionality. When the finger selects the keyboard input in the functional area 1b, the gesture analysis module 3 finds the corresponding key value in the coordinate lookup table at the position of the finger in the control input area 1a; Key actions such as tapping and long pressing or key combination; at the same time, invalid actions such as sliding of the finger on the input area 1a are shielded; the above-mentioned key realizes keyboard communication with the host through the communication module 4; when the finger selects touch input in the functional area 1b, Gesture analysis module 3 converts information such as the finger index, position, and speed of the finger in the control input area 1a into corresponding touch actions such as sliding, clicking, double-clicking, sliding after clicking, leaving, and leaving after sliding with a single finger or multiple fingers; Realize touch communication with the host through the communication module 4; when the finger selects special function keys such as power switch and volume adjustment in the functional area 1b, the gesture analysis module 3 sends corresponding instructions to the host through the communication module 4.

Example 4:

As shown in Figure 7, in the above-mentioned embodiment 3, the functional area 1b can be in the lower half of the touch panel 1, and the touch response of the control input area 1a can be controlled between keyboard input, touch input and other extended functions by using the movements of the palms of both hands. switch. For example, if the palm is on the function area 1b, the touch response of the input area 1a is keyboard input; if the palm is not on the function area 1b, the touch response of the input area 1a is touch input; The touch response switches sequentially between keyboard input, touch input, and other extended functions.

Example 5:

As shown in Figure 8, in the above-mentioned embodiment 4, the input area 1a can be divided into a left-hand area 1a-L and a right-hand area 1a-R, and the left-hand area 1a-L and the right-hand area 1a-R can be operated respectively through the movements of the left and right palms. In the state of keyboard input or touch input, it is convenient to realize the combination function of keyboard and touch of left and right hands.

Embodiment 6:

In Embodiment 1, the touch sensor 6 may be a projected capacitive type, or a surface capacitive type, an infrared type, an ultrasonic type, or a resistive type.

Embodiment 7:

The protective panel 5 of the touch panel 1 in the above embodiment can be made of materials such as tempered glass, surface-hardened plexiglass or similar plates, ceramic plates, etc., and is made by screen printing, engraving, etc. on the outer surface or inner surface of the protective panel. Visual virtual keyboard patterns, including letter keys, number keys and other various function keys, are used for keyboard input positioning. In order to facilitate the user's touch and positioning, the corresponding key positions can be made with slight protrusions or depressions.

Embodiment 8:

The protection panel 5 and the touch sensor 6 of the touch panel 1 in the above embodiment can be fabricated independently and combined, or the touch sensor 6 can be directly fabricated inside the protection panel 5 .

Embodiment 9:

The electronic circuit system in the above embodiments can be powered by ordinary batteries, rechargeable batteries, solar thin film batteries or external cables.

Example 10:

In the above embodiment, the touch sensor 6, the touch signal microprocessor 2, the gesture analysis module 3 and the communication module 4 can be manufactured separately, and then connected by connecting wires, or all can be integrated on the same printed circuit board PCB.

Claims (4)

1. input media based on many fingers touching technique, it is characterized in that: this device comprises

The contact panel (1) that is used for receiving inputted signal;

Be used to receive the touch signal microprocessor (2) of contact panel (1) output signal;

Be used for gesture analysis module (3) that touch signal microprocessor (2) output signal is analyzed;

Be used to receive the communication module (4) of gesture analysis module (3) output signal and the signal of main frame transmission to the back-end;

Described contact panel (1) comprises capacitive touch sensors (6) and covers this capacitive touch sensors (6)

Protection panel (5), capacitive touch sensors (6) comprise insulcrete (7) and go up line scanning electrode (8), the column scan electrode (9) that is provided with at insulcrete (7) that line scanning electrode (8) is connected with touch signal microprocessor (2) with column scan electrode (9); Wherein functional areas (1b) is positioned at the front end or the both sides of contact panel (1), and one or more buttons or virtual key can be set;

Contact panel (1) comprises input field (1a) and functional areas (1b); The input field (1a) of contact panel (1) comprises left hand district (1a-L) and right hand region (1a-R),

Functional areas (1b) are positioned on the contact panel (1), be provided with virtual key (10) at these functional areas (1b), the touch-responsive that this virtual key (10) is used for function key and control input field (1a) switches between keyboard input, touch input and other expanded function.

2. the input media based on many fingers touching technique according to claim 1 is characterized in that: the induction zone in line scanning electrode (8) and the column scan electrode (9) is straight line, rhombus or sweep;

Wherein line scanning electrode (8) and column scan electrode (9) are provided with respectively on the two sides of insulcrete (7), or in the same one side setting of insulcrete (7),

Line scanning electrode (8) is connected by conduction gap bridge (7c) through conductive via (7a) with column scan electrode (9) intersection, or surface making insulation course (7b) connects by conduction gap bridge (7c).

3. the input media based on many fingers touching technique according to claim 1, it is characterized in that: insulcrete (7) is transparent transparent organic polymer sheet material of glass, polycarbonate, polymethacrylate or polyphenyl dioctyl phthalate glycol ester or film, or for opaque ceramic wafer, poly (methyl methacrylate) plate or for being used to make the base material of printed circuit board, 0.01 ~ 3 millimeter of thickness.

4. the input media based on many fingers touching technique according to claim 1 is characterized in that: the protection panel (5) of contact panel (1) adopts tempered glass, the organic glass of surface hardening processing or the ceramic wafer material of similar sheet material.

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