TWI569183B - Touch sensing method and touch sensing apparatus and touch sensing keyboard - Google Patents

Description

Touch sensing method and touch device and touch keyboard thereof

The present invention relates to a touch sensing method and an application thereof, and more particularly to a touch sensing method capable of sensing a plurality of touch gestures and a touch device and a touch keyboard using the same.

Due to the booming of touch technology, the input interface of many electronic products has gradually changed from a traditional mechanical button control interface to a touch button control interface or a touch keyboard. Compared with the traditional mechanical control interface, the touch keyboard has the advantages of high reliability, low mechanical loss and long service life.

As far as the existing touch keyboard design is concerned, the designer usually sets a plurality of non-adjacent electrodes as the touch buttons according to the function button configuration of the electronic device as a whole, instead of the general touch panel. Generally, the electrodes of small size are arranged adjacent to each other in order.

However, in the existing touch keyboard hardware architecture, when a user operates a touch keyboard, it is usually limited to being controlled by contacting a specific touch button. The operation of the electronic device does not control the touch keyboard by sliding gestures like a normal touch panel.

The present invention provides a touch sensing method and a touch device and a touch keyboard thereof, which can implement a plurality of different touch gesture judgments under the existing touch device/touch keyboard hardware architecture.

The touch device of the present invention includes a touch array and a touch sensing circuit. The touch array has a plurality of touch electrodes arranged in an array, wherein each touch electrode has a sensing area to sense the object, and accordingly emits a sensing signal. The touch sensing circuit is coupled to the touch control array for driving the plurality of touch electrodes and receiving the plurality of sensing signals from the plurality of touch electrodes, wherein the touch sensing circuit is configured according to the plurality of senses The test signal determines whether the object enters the sensing area of the plurality of touch electrodes to define a touch event. The touch sensing circuit starts counting and generating a count value when determining that the object leaves one of the plurality of sensing regions, and defines a touch event as a click touch event according to the plurality of sensing signals and the count value. Or swipe a touch event.

In an embodiment of the invention, the touch electrodes are sequentially arranged at a predetermined interval, so that at least one non-sensing area is formed between the plurality of touch electrodes.

In an embodiment of the invention, the touch sensing circuit determines whether the count value exceeds a critical value. When the count value does not exceed the threshold value, the touch sensing circuit further determines whether the object enters the image according to the plurality of sensing signals. One of the multiple sensing zones.

In an embodiment of the invention, when the touch sensing circuit does not exceed the count value The touch sensing circuit defines the touch event as a sliding touch event when the object is determined to enter the other one of the sensing regions from the sensing region.

In an embodiment of the invention, when the touch sensing circuit determines that the count value exceeds When the threshold value is not entered into the other sensing area, the touch sensing circuit defines a touch event as a click touch event corresponding to one of the sensing areas.

In an embodiment of the invention, the touch sensing circuit includes a multiplexer and a control Units, counters, and arithmetic units. The multiplexer couples the contact control array to sequentially provide driving signals to the plurality of touch electrodes, and receives the plurality of sensing signals from the plurality of touch electrodes. The control unit is coupled to the multiplexer for generating a driving signal to drive the plurality of touch electrodes, and receiving the plurality of sensing signals from the multiplexer. The counter is controlled by the counting signal to start counting, and accordingly the counting value is generated. The arithmetic operation unit is coupled to the control unit and the counter for generating a counting signal, and receiving the plurality of sensing signals and the counting value from the control unit and the counter respectively, thereby generating an indication according to the plurality of sensing signals and the counting value. Touch information for controlling events.

The touch keyboard of the present case includes a button array and a touch sensing circuit. button The array has a plurality of touch buttons arranged in a predetermined interval, wherein each touch button has a sensing area for sensing an object, and accordingly, a sensing signal is emitted, and the preset interval is between the plurality of touch buttons Forming at least one non-sensing zone. The touch sensing circuit is coupled to the plurality of touch buttons for driving the plurality of touch buttons and receiving the plurality of sensing signals from the plurality of touch buttons, wherein the touch sensing circuit is The plurality of sensing signals determine whether the object enters the sensing area of the plurality of touch buttons to define a touch event. The touch sensing circuit determines that the object is from the plurality of sensing regions When one enters the non-sensing area, counting starts and generating a count value, and the touch event is defined as a click touch event or a sliding touch event according to the plurality of sensing signals and the count value.

The touch sensing method of the present invention includes the following steps: providing a touch keyboard, The touch keyboard includes a plurality of touch buttons, and the plurality of touch buttons are sequentially arranged at a predetermined interval and have sensing regions respectively; receiving a plurality of sensing signals sent by the plurality of touch buttons; Determining whether the object enters the sensing area of the plurality of touch buttons; and determining that the object enters one of the plurality of sensing areas, wherein the object is from the plurality of sensing areas When one enters the non-sensing area, the counting starts and the counting value is generated; and the touch event of the touch keyboard is defined as the click touch event or the sliding touch event according to the plurality of sensing signals and the count value.

In an embodiment of the invention, the preset interval causes the plurality of touch buttons to At least one non-sensing zone is formed between the two.

In an embodiment of the invention, according to the plurality of sensing signals and count values Determining whether the touch event of the touch keyboard is a touch touch event or a sliding touch event includes: determining whether the count value exceeds a critical value; determining whether the object enters the plurality of sensing regions according to the plurality of sensing signals Another; when it is determined that the count value does not exceed the threshold value and the object enters the other sensing area from the one of the sensing areas, the touch event is defined as a sliding touch event; and when the determined count value exceeds the critical value And when the object does not enter the other sensing area, the touch event is defined as a click touch event corresponding to one of the sensing areas.

Based on the above, the embodiment of the present invention provides a touch sensing method and application thereof. The touch device and the touch keyboard can be used as a basis for determining whether the touch gesture is a sliding touch gesture by moving the time interval from the touch button to the other touch button. Therefore, the touch sensing method of the embodiment of the present invention can implement a variety of different touch gesture judgments under the hardware structure of the existing touch device/touch keyboard, thereby further eliminating the need for a touch device/ Under the premise of the hardware setting of the touch keyboard, the practicality of the touch device/touch keyboard is improved.

The above described features and advantages of the invention will be apparent from the following description.

100‧‧‧ touch device

110‧‧‧Touch array

112_1~112_n‧‧‧Touch electrode

120, 220‧‧‧ touch sensing circuit

130, 230‧‧ ‧ processing unit

200‧‧‧Touch keyboard

210‧‧‧Key array

212_1~212_8‧‧‧Touch buttons

222‧‧‧Multiplexer

224‧‧‧Control unit

226‧‧‧ counter

228‧‧‧Arithmetic unit

CV‧‧‧ count value

D‧‧‧Preset interval

D1, D2‧‧‧ direction

OBJ‧‧‧ objects

S1~Sn, Ssen‧‧‧ sensing signals

S310~S350, S342~S358, S362~S364‧‧‧ steps

Sct‧‧‧ count signal

Sd‧‧‧ drive signal

SR1~SRn, SR‧‧‧ sensing area

TEV‧‧‧ touch information

T1, t2‧‧‧ time point

Z1, z2‧‧‧ space coordinates

FIG. 1 is a schematic diagram of a touch device according to an embodiment of the invention.

2 is a schematic diagram of a touch keyboard according to an embodiment of the invention.

FIG. 3 is a flow chart of steps of a touch sensing method according to an embodiment of the invention.

FIG. 4 is a flow chart of steps of a touch sensing method according to another embodiment of the present invention.

FIG. 5 is a flow chart of steps of a touch sensing method according to still another embodiment of the present invention.

6A-6C are schematic diagrams showing operations of a touch keyboard according to different embodiments of the present invention.

In order to make the disclosure of the present disclosure easier to understand, the following specific embodiments are examples of the disclosure that can be implemented. In addition, wherever possible, The elements/components/steps of the same reference numerals are used in the drawings and embodiments to represent the same or similar parts.

FIG. 1 is a schematic diagram of a touch device according to an embodiment of the invention. Please refer to the figure The touch device 100 of the present embodiment can be any type of electronic device with touch function, such as an induction cooker with a touch function, a microwave oven, a smart TV, a notebook computer, a tablet computer, a mobile phone, a keyboard, a mouse, and Any electronic product with a touch control interface. The touch device 100 includes a touch array 110 and a touch sensing circuit 120 .

The touch array 110 has a plurality of touch electrodes arranged in an array. A list of n touch electrodes 112_1 to 112_n is taken as an example (n is a positive integer), but the present invention is not limited thereto. In this embodiment, each of the touch electrodes 112_1~112_n has a corresponding sensing area SR1~SRn to sense an object (such as a finger or a stylus). The sizes of the sensing regions SR1 SR SRn are basically determined by the sizes of the touch electrodes 112_1 - 112_n. The touch electrodes 112_1~112_n react to whether the object enters the sensing regions SR1~SRn to generate an impedance change, and accordingly, the sensing signals S1~Sn are emitted. More specifically, the touch array 110 can be, for example, a resistive touch panel, a capacitive touch panel, an optical touch panel, or a surface acoustic wave touch panel. The impedance change may be, for example, a change in capacitance, a change in resistance, or a change in the amount of light incident, and the like, and the present invention is not limited thereto.

Touch sensing circuit 120 is coupled to contact array 110, which can be used to drive The signals sequentially drive the touch electrodes 112_1~112_n, and receive the sensing signals S1~Sn from the touch electrodes 112_1~112_n. Wherein, the touch sensing circuit 120 depends The sensing signals S1~Sn are received to determine whether the object enters the sensing areas SR1~SRn of the touch electrodes 112_1~112_n, thereby defining the touch event/touch position of the object applied to the touch device 100.

In addition, the touch device 100 further includes a processing unit 130. The processing unit 130 receives the touch information TEV indicating the touch event/touch position from the touch sensing circuit 120, and performs signal processing and control on the back end according to the touch information TEV, so that the touch device 100 reacts to use. The user performs the corresponding function.

An embodiment of the touch device 100 is further illustrated by the touch keyboard 200 illustrated in FIG. 2 . 2 is a schematic diagram of a touch keyboard 200 according to an embodiment of the invention.

Referring to FIG. 2 , the touch keyboard 200 of the embodiment includes a button array 210 , a touch sensing circuit 220 , and a processing unit 230 .

The button array 210 has a plurality of touch buttons 212_1~212_8 arranged at a predetermined interval D (the interval size can be determined by the designer) (this is exemplified by a 2×4 button array, but the invention is not limited thereto). Each of the touch buttons 212_1~212_8 has a corresponding sensing area SR according to its size and shape to sense the interaction of the object OBJ with the corresponding touch buttons 212_1~212_8. The preset interval D between the touch buttons 212_1~212_8 causes a non-sensing area between the touch buttons 212_1~212_8.

In this embodiment, when the object OBJ moves from one of the touch buttons 212_1~212_8 to the other of the touch buttons 212_1~212_8, the object OBJ will first correspond to one of the touch buttons 212_1~212_8. The sensing area SR leaves and And entering the non-sensing area first, and then entering the sensing area SR corresponding to the other touch buttons 212_1~212_8 after passing through the non-sensing area.

It is worth mentioning here that the "determination object OBJ enters / In the actual application, for example, the touch sensing circuit 220 determines whether the level change of the sensing signal Ssen exceeds a threshold value as a basis for determining. For example, if the touch sensing is performed When the circuit 220 detects that the level of the sensing signal Ssen associated with the touch button 212_1 rises above the threshold, the touch sensing circuit 220 determines that the object OBJ enters the sensing area SR of the touch button 212_1; similarly, if When the touch sensing circuit 220 detects that the level of the sensing signal Ssen associated with the touch button 212_1 drops beyond the threshold, the touch sensing circuit 220 determines that the object OBJ leaves the sensing area SR of the touch button 212_1.

On the contrary, although the object OBJ causes the sensing signal Ssen to change, but the change In the case where the amount does not exceed the threshold value (for example, the object OBJ entering the sensing area SR is insufficient in volume), the touch sensing circuit 220 does not determine this behavior as "entry/exit sensing area".

Based on the above definition, when the object OBJ is from the touch buttons 212_1~212_8 When one of the touch buttons is moved to the other of the touch buttons 212_1~212_8, the user moves the finger from the touch button 212_1 to 212_2 as an example, and the user's finger may have a part moving. At the same time, it is located in the sensing area SR of the two touch buttons 212_1 and 212_2 to cause the sensing signal Ssen associated with the touch buttons 212_1 and 212_2 to change. At this time, the touch sensing circuit 220 detects that the sensing signals Ssen associated with the touch buttons 212_1 and 212_2 change, but The amount of change does not exceed the threshold value of the design. Therefore, the touch sensing circuit 220 does not determine that the user's finger enters the sensing area SR of the two touch buttons 212_1 and 212_2 at the same time.

In other words, in the embodiment, when the touch keyboard 200 is controlled by the single object OBJ, the touch sensing circuit 220 does not determine that the object OBJ enters the sensing area SR of the two touch buttons 212_1 212212_8 at the same time. That is, at the same time, the touch sensing circuit 220 only detects that the single touch buttons 212_1~212_8 are touched by the object OBJ, and the object OBJ moves from one touch button 212_1~212_8 to another touch. When the buttons 212_1~212_8 are pressed, the touch sensing circuit 220 is bound to determine that the object OBJ enters another sensing area after determining that the object OBJ leaves a sensing area.

The touch sensing circuit 220 includes a multiplexer 222, a control unit 224, a counter 226, and an arithmetic operation unit 228. The multiplexer 222 is coupled to the contact buttons 212_1~212_8. The multiplexer 222 receives the driving signal Sd from the control unit 224 and sequentially supplies the driving signal Sd to the touch buttons 212_1 212212_8. Each of the touch buttons 212_1 212 212_8 generates a sensing signal Ssen indicating a change in impedance in response to the received driving signal Sd and transmits it back to the multiplexer 222. The multiplexer 222 receives the corresponding sensing signal Ssen from the touch buttons 212_1~212_8 and transmits it back to the control unit 224.

The control unit 224 is coupled to the multiplexer 222. Control unit 224 can be used to generate The driving signal Sd drives the touch buttons 212_1~212_8, and receives the sensing signal Ssen from the multiplexer 222. The control unit 224 can convert the received sensing signal Ssen into a specific format according to design requirements. Or the arithmetic operation unit 228, or directly transmit the received sensing signal Ssen to the arithmetic operation unit 228, the present invention is not limited thereto.

The counter 226 is coupled to the arithmetic operation unit 228. The counter 226 is controlled by the counting signal Sct sent by the arithmetic operation unit 228 to start counting, and the generated count value CV is returned to the arithmetic operation unit 228.

The arithmetic operation unit 228 is coupled to the control unit 224 and the counter 226. The arithmetic operation unit 228 can be used to generate the count signal Sct and receive the sensing signal Ssen and the count value CV from the control unit 224 and the counter 226, respectively. With the hardware configuration, the arithmetic operation unit 228 can generate the touch information TEV indicating the touch event caused by the object OBJ according to the sensing signal Ssen and the count value CV.

The touch sensing method of the touch keyboard 200 of the present embodiment is described below with reference to the step flow of FIG. 3 . FIG. 3 is a flow chart of steps of a touch sensing method according to an embodiment of the invention.

Referring to FIG. 2 and FIG. 3 simultaneously, firstly, the touch keyboard 200 as shown in FIG. 2 is provided (step S310), and the touch array 220 is driven by the touch sensing circuit 220 to make the touch sensing circuit 220 The sensing signal Ssen emitted by the touch buttons 212_1~212_8 can be received from the button array 210 (step S320). Then, the touch sensing circuit 220 determines whether the object OBJ enters the sensing area SR of the touch buttons 212_1 212212_8 according to the received sensing signal Ssen (step S330).

If the touch sensing circuit 220 determines that the object OBJ does not enter the sensing area SR of the touch buttons 212_1~212_8, the touch sensing circuit 220 repeatedly performs step S330 to continuously determine whether the object OBJ enters the touch buttons 212_1~212_8. Sensing area SR. On the contrary, the touch sensing circuit 220 determines that the object OBJ enters therein. In the case of the sensing area SR of the touch buttons 212_1~212_8, the touch sensing circuit 220 starts counting when the object OBJ enters the non-sensing area from the sensing area SR (ie, when the object OBJ leaves the sensing area). The count value CV is generated (step S340). Therefore, the touch sensing circuit 220 can define the touch event of the touch keyboard 200 as a click touch event or a sliding touch event according to the sensing signal Ssen and the count value (step S350), thereby being on the touch keyboard 200. A sensing mechanism that implements a variety of different touch gestures.

The step flow of Figure 4 is combined with the touch keyboard 200 architecture of Figure 2 A specific operation flow of the touch sensing method according to an embodiment of the present invention is specifically described. 4 is a flow chart of steps of a touch sensing method according to another embodiment of the present invention.

Please refer to FIG. 2 and FIG. 4 simultaneously, steps S310 to S330 of this embodiment. The parts are the same as those of the foregoing embodiment of FIG. 3, and therefore will not be described again. In step S340, the arithmetic operation unit 228 further determines whether the object OBJ is separated from the sensing area SR according to the sensing signal Ssen (step S342). The arithmetic operation unit 228 continuously detects whether the object OBJ is separated from the sensing area SR while the object OBJ is still in the sensing area SR, and issues a counting signal Sct to make the counter when the object OBJ is determined to leave the sensing area SR. 226 starts counting and accordingly generates a count value CV (step S344).

The arithmetic operation unit 228 determines the count value after receiving the count value CV. Whether the CV exceeds the threshold (step S352), thereby defining whether the gesture applied by the object OBJ to the touch keyboard 200 is a continuous sliding gesture or a click gesture made for the specific touch buttons 212_1~212_8.

More specifically, when the count value CV does not exceed the critical value, the arithmetic operation list The element 228 further determines whether the object OBJ enters the sensing area SR of the other touch keys 212_1 212212_8 according to the received sensing signal Ssen (step S354).

If the arithmetic operation unit 228 is within the period in which the count value CV does not exceed the critical value The determination unit OBJ moves from the sensing area SR of one touch button 212_1~212_8 to the sensing area SR of the other touch button 212_1~212_8, and the arithmetic operation unit 228 defines the touch event caused by the object OBJ as the sliding touch. The event (step S356), and the touch information TEV indicating the sliding touch event is generated to the processing unit 230.

On the other hand, if the arithmetic operation unit 228 determines that the object OBJ is at the count value After the CV exceeds the critical value and stays in the original sensing area SR (S354-No => S352-Yes), the arithmetic operation unit 228 defines the touch event caused by the object OBJ as corresponding to the original touch buttons 212_1~212_8. Clicking on the touch event (step S358), and generating a touch information TEV indicating the click touch event.

More specifically, the user performs a click operation as shown in FIG. 6A. Show. Referring to FIG. 2 and FIG. 6A together, in this embodiment, the user clicks the touch button 212_1 with a finger and then moves away. In this case, the counter 226 starts counting when the user's finger leaves the sensing area SR of the touch button 212_1. The arithmetic operation unit 228 determines that the object OBJ does not enter the sensing area SR of the other touch buttons 212_2 212 212_8 when the count value CV exceeds the threshold value, thereby generating an instruction to the user to click the touch button 212_1 (ie, click the touch event). The touch information TEV is sent to the processing unit 230 of the back end.

On the other hand, a schematic diagram of the user performing the sliding operation is shown in Fig. 6B. Please refer to FIG. 2 and FIG. 6B together. In this embodiment, the user touches the finger from the touch. The button 212_1 moves to the touch button 212_2. In this case, the counter 226 starts counting at the time point t1 when the user's finger leaves the sensing area SR1 of the touch button 212_1. Assuming that the user's finger moves to the sensing area SR2 of the touch button 212_2 at the time point t2, the count value CV generated by the counter 226 corresponds to the time difference between the time points t1 and t2.

Wherein, when the arithmetic operation unit 228 determines that the count value CV is smaller than the threshold value, it indicates that the time difference between the time points t1 and t2 is less than a preset time. Therefore, the arithmetic operation unit 228 determines that the gesture made by the user is a continuous sliding motion, and is not a click motion, and accordingly, instructs the user to apply a sliding touch gesture between the touch buttons 212_1 and 212_2 (ie, The touch information TEV of the sliding touch event is given to the processing unit 230 of the back end.

In this embodiment, the sliding direction of the sliding touch event is based on two The relative position/direction of the touch buttons is determined. For example, the embodiment in which the user moves the finger from the touch button 212_1 to the touch button 212_2 is also taken as an example. When the arithmetic operation unit 228 defines the touch operation as a sliding touch event. The arithmetic operation unit 228 defines the direction D1 of the touch button 212_1 pointing to the touch button 212_2 as the sliding direction, and accordingly generates a corresponding touch information TEV.

Similarly, if the user moves the finger from the touch button 212_1 to the touch When the button 212_5 is pressed, the arithmetic operation unit 228 defines the sliding direction according to the direction in which the touch button 212_1 points to the touch button 212_5, and accordingly generates another corresponding touch information TEV. Thus, the user can apply different parties on the touch keyboard 200. A swipe gesture to perform different actions.

It should be noted that the foregoing embodiment is merely illustrative, and the sliding touch event and the click touch event in this case are not limited to the above manner. For example, in another embodiment, the counter 226 can also start counting when the object OBJ enters the sensing area SR of the touch buttons 212_1~212_8, and determine that the touch event is a tap touch when the count value CV exceeds a set value. Control the incident.

In other words, as long as the touch sensing circuit 220 moves from the touch button 212_1~212_8 to the next touch button 212_1~212_8 by the counting object OBJ, it is used as a basis for determining whether the touch gesture is a sliding touch gesture. They do not depart from the scope of the invention to be protected.

In addition, in another embodiment, the touch device 100 / touch keyboard 200 of the present invention can also perform sensing of a three-dimensional touch operation, as shown in the touch sensing method of FIG. 5 . The touch keyboard 200 of FIG. 2 is also described as an example here, but the present invention is not limited thereto.

Referring to FIG. 2 and FIG. 5 together, the portions of steps S310 to S330 of the present embodiment are the same as those of the foregoing embodiment of FIG. 3, and the portions of steps S342 to S358 are the same as those of the foregoing embodiment of FIG. 4, and therefore will not be described again.

The main difference between this embodiment and the foregoing embodiment of FIG. 4 is that when the arithmetic operation unit 228 determines that the object OBJ enters the sensing area SR of one of the touch buttons 212_1 212212_8 and the object OBJ has not left the sensing area SR (step S342- No), the arithmetic operation unit 228 further calculates the spatial coordinates of the object OBJ in the vertical direction according to the received signal strength of the sensing signal Ssen (step S362). After calculating the spatial coordinates in the vertical direction, the arithmetic operation unit 228 defines the touch event as a three-dimensional touch event according to the spatial coordinate change of the object OBJ in the sensing area SR (step S364).

More specifically, a schematic diagram of the user performing a three-dimensional touch operation is shown in FIG. 6C. Referring to FIG. 2 and FIG. 6C together, in the embodiment, the user moves in the vertical direction D2 (ie, the direction away from the plane of the button array 210) in the sensing area SR1 of the touch button 212_1. In this case, the arithmetic operation unit 228 calculates the space coordinate of the user's finger as z1 according to the signal strength of the sensing signal Ssen at the time point t1, and calculates the signal intensity of the sensing signal Ssen at the time point t2. The space coordinate of the user's finger is z2. Thereby, the arithmetic operation unit 228 can define the touch event as a three-dimensional touch event according to the amount of change between the space coordinates z1 and z2.

For example, when the arithmetic operation unit 228 determines according to the sensing signal Ssen When the displacement amount of the object OBJ in the vertical direction D2 in the sensing area SR1 (that is, the amount of change of the space coordinates z1 and z2) exceeds a predetermined value, it is determined that the user applies a three-dimensional touch gesture, and accordingly Corresponding touch information TEV.

In summary, the embodiment of the present invention provides a touch sensing method and application thereof. The touch device and the touch keyboard can be used as a basis for determining whether the touch gesture is a sliding touch gesture by moving the time interval from the touch button to the other touch button. Therefore, the touch sensing method of the embodiment of the present invention can implement a variety of different touch gesture judgments under the hardware structure of the existing touch device/touch keyboard, thereby further eliminating the need for a touch device/ Under the premise of the hardware setting of the touch keyboard, improve touch The practicality of the control device/touch keyboard.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and any one of ordinary skill in the art can make some changes and refinements without departing from the spirit and scope of the present invention. The scope of the invention is defined by the scope of the appended claims.

S310~S350‧‧‧Steps

Claims (8)

A touch device includes: a touch array having a plurality of touch electrodes arranged in an array, wherein each of the touch electrodes has a sensing area to sense an object and emit a sensing signal; and The touch sensing circuit is coupled to the touch array for driving the touch electrodes and receiving the sensing signals from the touch electrodes, wherein the touch sensing circuit determines the sound according to the sensing signals Whether the object enters the sensing area of the touch electrodes to define a touch event, wherein the touch sensing circuit starts counting and generates a count value when determining that the object leaves one of the sensing areas And determining, according to the sensing signals and the count value, the touch event is a click touch event or a sliding touch event, wherein the touch sensing circuit determines whether the count value exceeds a threshold value, when the When the count value does not exceed the threshold value, the touch sensing circuit further determines whether the object enters the other of the sensing regions according to the sensing signals, and when the touch sensing circuit determines that the count value exceeds the When the critical value and the object of another which did not enter the sensing area, the touch sensing circuit is defined as a click of the touch event on the touch event should be one of sensing area. The touch device of claim 1, wherein the touch electrodes are sequentially arranged at a predetermined interval, so that at least one non-sensing region is formed between the touch electrodes. The touch device of claim 1, wherein the touch sensing circuit determines that the object enters the other one of the sensing regions during the period in which the count value does not exceed the threshold value. In the sensing area, the touch sensing circuit defines the touch event as the sliding touch event. The touch control device of claim 1, wherein the touch sensing circuit comprises: a multiplexer coupled to the touch array for sequentially providing a driving signal to the touch electrodes; Receiving the sensing signals from the touch electrodes; a control unit coupled to the multiplexer for generating the driving signals to drive the touch electrodes, and receiving the sensing signals from the multiplexer a counter, which is controlled by a count signal to start counting, and accordingly generates the count value; and an arithmetic operation unit coupled to the control unit and the counter for generating the count signal and separately from the control The unit and the counter receive the sensing signals and the count value, and generate a touch information indicating the touch event according to the sensing signals and the count value. A touch keyboard includes: a button array having a plurality of touch buttons arranged in a predetermined interval; wherein each of the touch buttons has a sensing area to sense an object and emit a sensing a predetermined interval for forming at least one non-sensing area between the touch buttons; and a touch sensing circuit coupled to the touch buttons for driving the touch buttons Receiving the sensing signals from the touch buttons, wherein the touch sensing circuit determines whether the object enters the sensing area of the touch buttons according to the sensing signals, thereby defining a touch event, wherein When the touch sensing circuit determines that the object enters the non-sensing area from one of the sensing areas, starts counting and generates a count value, and defines the sensing signal according to the counting value. The touch event is a touch-sensitive event or a sliding touch event, wherein the touch sensing circuit determines whether the count value exceeds a threshold value, and when the count value does not exceed the threshold value, the touch sensing The circuit further determines, according to the sensing signals, whether the object enters the other of the sensing regions, when the touch sensing circuit determines that the count value exceeds the critical value and the object does not enter the other sensing region of the object. The touch sensing circuit defines the touch event as a click touch event corresponding to one of the sensing regions. The touch keyboard of claim 5, wherein the touch sensing circuit determines that the object enters the other one of the sensing regions during the period in which the count value does not exceed the threshold In the sensing area, the touch sensing circuit defines the touch event as the sliding touch event. The touch keyboard of claim 5, wherein the touch sensing circuit comprises: a multiplexer coupled to the touch buttons for sequentially providing a driving signal to the touch buttons And receiving the sensing signals from the touch buttons; a control unit coupled to the multiplexer for generating the driving signal to drive the Receiving the touch signals, and receiving the sensing signals from the multiplexer; a counter is controlled by a counting signal to start counting, and accordingly generating the counting value; and an arithmetic operation unit coupled to the control unit And the counter is configured to generate the counting signal, and receive the sensing signals and the counting values from the control unit and the counter respectively, thereby generating one indicating the touch event according to the sensing signals and the counting value. Touch information. A touch sensing method includes: providing a touch keyboard, wherein the touch keyboard includes a plurality of touch buttons, wherein the touch buttons are sequentially arranged at a predetermined interval and each has a sensing area, and the Forming at least one non-sensing area between the touch buttons; receiving a plurality of sensing signals sent by the touch buttons; determining, according to the sensing signals, whether an object enters the touch buttons a sensing area; in the case of determining that the object enters one of the sensing areas, counting starts when the object enters the non-sensing area from one of the sensing areas, and generates a count value accordingly; The sensing signal and the counting value define a touch event of the touch keyboard as a click touch event or a sliding touch event, wherein the touch keyboard is defined according to the sensing signals and the count value. The step of the touch event being the touch touch event or the sliding touch event includes: determining whether the count value exceeds a critical value; Determining, according to the sensing signals, whether the object enters the other of the sensing regions; when it is determined that the counting value does not exceed the threshold and the object enters the other sensing region from the one sensing region, Defining the touch event as the sliding touch event; and when determining that the count value exceeds the threshold and the object does not enter the other sensing area, defining the touch event as corresponding to one of the sensing regions Click on the touch event.