KR101712907B1 - Sensing method of touch and touch sensor device thereof - Google Patents

Abstract

A touch sensing method and a touch sensor device therefor according to an embodiment of the present invention are disclosed. In more detail, a touch sensing method and a touch sensor device according to an embodiment of the present invention include a touch sensing method using a touch sensor and a touch sensor device therefor, Sensing method and a touch sensor device therefor.

Description

TECHNICAL FIELD [0001] The present invention relates to a touch sensing method,

The present invention relates to a touch sensing method and a touch sensor device, and more particularly, to a touch sensing method using a capacitive touch sensor and a touch sensor device therefor.

More particularly, the present invention relates to a touch sensing method capable of accurately determining whether or not a touch is determined by considering the difference in touch sensitivity between individual users, and a touch sensor device therefor.

In mobile devices and flat panel TVs, the development and use of electronic devices having a touch sensing function are increasing.

An electronic device having a touch sensing function (hereinafter referred to as a 'touch sensor device') can detect whether or not a user touches a touch panel (or a touch pad), and can further detect a touched position. In the touch sensor device, the touch sensing function may be implemented using a pressure sensor, a capacitive sensor, or the like.

In the touch sensor device, the most important thing is to accurately recognize whether or not to touch the touch point. However, there is an error in recognizing whether or not touch occurs due to power source noise generated in the internal or external power supply device, specific frequency noise externally applied to the touch sensor device, or noise caused by a change in operating environment such as temperature Lt; / RTI >

In addition, in determining whether or not a touch is generated, a judgment error may occur. Accordingly, it may be determined that a touch has occurred even though the touch has not occurred, or it is determined that the touch is not performed even though the touch has occurred.

Accordingly, there is a need to provide a touch sensing method and a touch sensor device that can accurately determine whether or not a touch is generated by reducing a recognition error of touch or whether or not the touch is generated.

The present invention relates to a touch sensing method and a touch sensor device therefor, and more particularly, to a touch sensing method capable of accurately determining whether a touch is performed by increasing a touch sensitivity and a touch sensor device.

It is another object of the present invention to provide a touch sensing method for determining whether or not a touch is made by considering a difference in touch sensitivity between individual users, and a touch sensor device therefor.

According to an embodiment of the present invention, there is provided a method of sensing a touch using a touch sensor, the method comprising: measuring an individual touch sensitivity of each user to use the touch sensor; Adjusting a touch threshold value, which is a reference touch sensitivity for recognizing the touch, according to the measured individual touch sensitivity; And sensing the touch by applying the adjusted touch threshold value.

The touch sensor may be a capacitive touch sensor. The individual touch sensitivity has a different value depending on the capacitance of the user using the touch sensor.

In addition, the touch sensing method according to an embodiment of the present invention may further include a step of selecting whether to measure the individual touch sensitivity in a predetermined user interface.

Further, the touch sensing method according to an embodiment of the present invention may further include a step of starting the touch threshold value adjustment after measuring the individual touch sensitivity, and outputting the adjustment start message through the user interface .

In addition, the touch sensing method according to an embodiment of the present invention may further include outputting the adjustment completion message through the user interface when the touch threshold value adjustment is completed.

Also, the user interface may be an on-screen display.

According to an aspect of the present invention, there is provided a touch sensor device including: a capacitive touch sensor including a touch pad, the capacitors formed therein being charged or discharged depending on whether a user touches the touch pad; A voltage signal generator for generating and outputting a voltage signal corresponding to a voltage charged in the capacitors; And an individual touch sensitivity which is a touch sensitivity for each user who wishes to use the capacitive touch sensor, adjusts a touch threshold value, which is a reference touch sensitivity for recognizing the touch according to the individual touch sensitivity, And a touch sensing processor for sensing the touch by applying a threshold value.

In addition, the individual touch sensitivity may have a different value depending on the capacitance of the user using the capacitive touch sensor.

In addition, the touch sensing processing unit may be selected whether to measure the individual touch sensitivity through a predetermined user interface provided internally or externally.

In addition, the touch sensing processing unit may start the touch threshold value adjustment after measuring the individual touch sensitivity, and may output the adjustment start message through the user interface.

In addition, the touch sensing processing unit repeatedly measures the individual touch sensitivity twice or more, and may adjust the sensitivity according to the average value of the individual touch sensitivities.

The touch sensing method and the touch sensor device according to the present invention can determine whether or not the touch is performed in consideration of the difference in touch sensitivity between individual users. Accordingly, it is possible to prevent the occurrence of an error in determining whether or not the touch occurs due to the difference in capacitance between the individual users.

In addition, the touch sensing method and the touch sensor device according to the present invention can increase the touch recognition rate by setting an optimal touch threshold value for each individual user. Accordingly, it is possible to reduce the judgment error of whether or not the touch is made and to judge whether or not the touch is generated correctly.

1 is a view illustrating a sensor unit provided in a touch sensor device according to an embodiment of the present invention.
2 is a diagram illustrating a touch sensing method according to an embodiment of the present invention.
3 is a view showing a voltage signal measured by the voltage signal generator of FIG.
4 is a view illustrating a touch sensor device according to an embodiment of the present invention.
5 is a view showing a display device to which the touch sensor device of FIG. 4 is applied.
FIG. 6 is a view showing a soft touch module to which the touch sensor device of FIG. 4 is applied.
FIG. 7 is a block diagram illustrating a display device to which the touch sensor device of FIG. 4 is applied.

The objects, features and advantages of the present invention will be more readily understood by reference to the accompanying drawings and the following detailed description. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

1 is a view showing a sensor unit provided in a touch sensor device according to an embodiment of the present invention.

Referring to FIG. 1, a sensor unit 100 included in a touch sensor device includes a capacitive touch sensor 105 and a voltage signal generation unit 107.

The sensor unit 100 detects whether the capacitors 130 and 140 formed inside the capacitive touch sensor 105 are charged or discharged by touching the human body (e.g., a finger) Device. Specifically, the sensor unit 100 detects whether or not the capacitor 130 formed inside the capacitive touch sensor 105 is charged or discharged by touching a finger of a person, thereby detecting the touch.

The capacitive touch sensor 105 includes a conductive substance plate 110 and a sensor pad 120. A capacitor 130 and a capacitor 140 are formed on the conductive material substrate 110 and the sensor pad 120, respectively. When the user touches the conductive material substrate 110, the capacitor 130 is charged, and while the user does not touch the capacitor 130, the capacitor 130 remains discharged.

When the user touches the conductive material substrate 110 with a finger or the like, the capacitor 130 is formed between the conductive material substrate 110 and the user's finger 160 in contact therewith. The capacitor 130 has a capacitance Cf value.

The capacitor 130 is formed when the conductive material substrate 110 and the user's finger 160 are in contact with each other to generate a touch. And, if not contacted, the capacitor 130 is not formed, and therefore the capacitance Cf has a value of zero. The value of the capacitance Cf has a value that varies depending on the user's personal characteristics.

A parasitic capacitor 140 having a capacitance Cp is formed on the sensor pad 120 of the capacitive touch sensor 105 regardless of the user's touch. The parasitic capacitor 140 represents all of the capacitor components formed in the capacitive touch sensor 105 except for the capacitor 130 generated by the touch.

의 값을 갖는다. 여기서,

및

은 유전 상수 값으로, 도전 물질 기판(110) 및 사용자 특성에 따라서 다른 값을 가지는 상수 값이 된다. d는 하나의 커패시터를 형성하는 두 기판 사이에 최단 거리를 뜻하며, A는 커패시터를 형성하는 전극(예를 들어, 도전 물질 기판(110))의 면적을 나타낸다. 도 1에 있어서, 커패시터(130)의 커패시턴스 Cf에 있어서, 면적 A 는 터치시 손가락이 접촉되는 면적 또는 도전 물질 기판(110)의 면적 중 작은 면적이 된다. The capacitance C of the capacitor

Lt; / RTI > here,

And

Is a constant value having a different value depending on the conductive material substrate 110 and the characteristics of the user. d represents the shortest distance between two substrates forming one capacitor, and A represents the area of the electrode (for example, the conductive material substrate 110) forming the capacitor. In Fig. 1, in the capacitance Cf of the capacitor 130, the area A is a small area of the contact area of the finger or the area of the conductive material substrate 110 when touched.

The total capacitance C_total of the entire capacitors formed in the capacitive touch sensor 105 is a sum of Cp and Cf and expressed by the following equation (1).

[Equation 1]

C_total = Cp + Cf

That is, the capacitive touch sensor 105 has a capacitance C_total which varies depending on whether the user touches the capacitive touch sensor 105 or not.

The voltage signal generating unit 107 monitors a voltage change corresponding to a change in capacitance (i.e., capacitance) of a capacitor generated when a user touches the touch panel.

Specifically, the voltage signal generating unit 107 measures a capacitance C_total value sensed from the capacitive touch sensor 105 in real time, and generates and outputs a voltage signal corresponding to a capacitance C_total value to be measured. Here, the voltage signal is a signal corresponding to the voltage across both ends of the capacitors 130 and 140. [

The voltage signal output from the voltage signal generator 107 will be described in detail with reference to FIG.

2 is a diagram illustrating a touch sensing method according to an embodiment of the present invention.

Referring to FIG. 2, the touch sensing method according to an exemplary embodiment of the present invention measures a touch sensivity using a touch sensor, which is a touch sensivity of a user using a touch sensor (215 step).

The touch sensor may be a capacitive touch sensor as shown in FIG. In addition, a place to be touched by the user is referred to as a touch pad, which may be the conductive material substrate 110 of FIG.

Step 215 may be repeated two or more times. The individual touch sensitivities can be measured more accurately by repeatedly measuring the individual touch sensitivities two or more times and determining the individual touch sensitivities by the average value of the measured values.

The touch sensitivity can be expressed by a capacitance value Cf, a capacitance C_total, or an output voltage value of the voltage signal generation unit 107 according to a capacitance C_total when a touch is performed, and can be expressed by a characteristic value measured when an individual user touches the touch pad It means.

Since the capacitances have different values for each user, capacities of the capacitors 130 formed at the time of touch may be different for each user. A case where a touch recognition error may occur due to a change in touch sensitivity for each user will be described with reference to FIG.

3 is a view showing a voltage signal measured by the voltage signal generator of FIG. Referring to FIG. 3, the x-axis represents time t and the y-axis represents voltage level v.

3, the voltage signal (for example, 310) output from the voltage signal generator 107 has a voltage level that changes according to a change in the capacitance C_total of the capacitors 130 and 140. Referring to FIG. In FIG. 3, a case where a user's touch is made between t3 and t4 is shown as an example.

When a touch is made, the capacitor 130 formed in the capacitive touch sensor 105 is charged to increase the voltage level across the capacitors.

The 310 and 320 graphs represent the monitored voltage signals, respectively, when different users touch the touchpad. As described above, since the capacitances are different for each user, they have different voltage signal levels for each user.

For example, suppose that a2 voltage level is set to the touch threshold value. The touch threshold value is a threshold value for recognizing that a touch has occurred, and recognizes that a touch occurs only when the level of the voltage signal exceeds the touch threshold value. Therefore, when the touch sensitivity is the same as the 310 graph, the touch can be recognized. However, when the touch sensitivity is the same as that of the 320 graph, there is a problem that the touch can not be recognized.

In this embodiment, the touch sensitivity is measured for each individual user in consideration of the fact that the touch sensitivity may vary due to the difference in capacitance of each user. In the subsequent step 225, the touch threshold value is adjusted according to the individually measured touch sensitivity Step 225).

When the individual touch sensitivity is measured for each individual user, the touch threshold value can be set to a value smaller by a predetermined margin than the measured touch sensitivity.

For example, if the touch sensitivity of the user is measured as shown in the graph 310, the voltage level generated at the time of touching may be about a1 voltage level, and a margin of the a1-a2 voltage may be set to set the a2 voltage level as the touch threshold value . Here, the margin value may be set in consideration of the product specification of the touch recognition device or the touch recognition rate or the like desired by the user.

In order to distinguish between the touch and the instantaneous noise, only when the voltage signal output from the voltage signal generation unit 107 continuously exceeds the touch threshold value for a predetermined time (hereinafter, referred to as 'touch threshold time'), Can be recognized as having occurred.

For example, if the touch threshold value is set to the a2 voltage level, the touch threshold time may be set to a value smaller than the P1 period by a certain margin in the case of the 310 graph. Here, the touch threshold time is a value that is experimentally repeatedly measured and calculated, and is calculated as a minimum time that can be judged that a touch has occurred.

Also, in the voltage signal, there may be a period in which the voltage signal level fluctuates irregularly due to noise. The noise includes power noise generated in the internal or external power supply device, specific frequency noise externally applied to the touch sensor device, or noise caused by a change in operating environment such as temperature.

In FIG. 3, noise is generated before time t1, between t1 and t2, between t2 and t3, and after time t4. Further, in the case of the noise signal (for example, the noise of the portion 331), the P2 period, which is the time to maintain the voltage level exceeding the touch threshold, is shorter than the touch.

The touch sensing method according to an embodiment of the present invention can individually detect the touch sensitivity according to a user and adjust the touch threshold value accordingly, thereby preventing the occurrence of the touch recognition error described above with reference to FIG. That is, it is possible to prevent a touch recognition error caused by a capacitance difference between users, and to recognize whether or not a touch is generated correctly.

The method of sensing a touch according to an embodiment of the present invention may further include a step of selecting whether or not to measure the individual touch sensitivity (step 205) before step 215. If it is determined not to measure the individual touch sensitivity according to step 205, the touch is sensed according to the existing touch threshold value (step 240).

The selection of step 205 may be made by the user. Also, it can be selected to automatically measure the individual touch sensitivity by the initial setting. Also, it can be selected so as not to automatically measure the individual touch sensitivity by the initial setting. The existing touch threshold value is set without considering the difference of capacitance according to the user.

If it is determined in step 205 that the individual touch sensitivity is to be measured, the user may further include a step of outputting, through the user interface, a message that the user touches the touch pad with a finger to be touched (step 210).

In operation 215, when the individual touch sensitivity measurement is completed, a message indicating that the touch threshold value has been started is output through the user interface.

In addition, when the adjustment of the touch threshold value is completed, the step of outputting a message that the adjustment of the touch threshold value is completed through the user interface may be further included.

In steps 210, 220, and 230, an on-screen display (OSD) may be used as a user interface.

Next, in step 235, a touch is detected by applying the adjusted touch threshold value in step 225.

4 is a view illustrating a touch sensor device according to an embodiment of the present invention.

Referring to FIG. 4, the touch sensor device 400 according to an embodiment of the present invention includes a sensor unit 100 and a touch sensing processing unit 410. The sensor unit 100 includes a capacitive touch sensor 105 and a voltage signal generator 107.

The capacitive touch sensor 105 includes a touch pad. The capacitors formed inside the capacitive touch sensor 105 are charged and discharged depending on whether the user has touched the touch pad. Since the capacitive touch sensor 105 has been described with reference to Fig. 1, detailed description thereof will be omitted.

The voltage signal generating unit 107 generates and outputs a voltage signal corresponding to the voltage applied to the capacitors. Since the voltage signal generating unit 107 has been described above with reference to FIGS. 1 and 3, a detailed description thereof will be omitted.

The touch sensing processing unit 410 measures the individual touch sensitivity, which is the touch sensitivity of the user who wants to use the capacitive touch sensor, adjusts the touch threshold value, which is a criterion for recognizing whether or not the touch is sensed in accordance with the individual touch sensitivity, The threshold is applied to detect the touch.

In addition, the touch detection processing unit 410 may internally include a user interface. 4 illustrates an example in which an on-screen display (OSD) 411 is used as a user interface.

Although the on-screen display 411 is provided inside the touch sensing processing unit 410, the on-screen display 411 may be provided outside the touch sensing processing unit 410. The on-screen display 411 displays the operation state of the touch detection processing unit 410, the processing result, and the like so that the user can recognize it.

In addition, the touch sensing processor 410 can select whether or not to measure the individual touch sensitivities. If it is determined not to measure the individual touch sensitivities, the touch sensing processor 410 senses the touch according to the existing touch threshold values. Here, the existing touch threshold value is a value set without considering the difference of the capacitance per user.

Specifically, the selection of whether to measure the individual touch sensitivity can be made by the user's control. Also, it can be selected to automatically measure the individual touch sensitivity by the initial setting. Also, it can be selected so as not to automatically measure the individual touch sensitivity by the initial setting.

When the touch sensing processing unit 410 determines to measure the individual touch sensitivity, the touch sensing processing unit 410 transmits a message to touch the finger to be touched by the user to the touch pad through a user interface internally or externally provided (e.g., an on-screen display 411 .

When the individual touch sensitivity measurement is completed, the touch sensing processing unit 410 transmits a message indicating that the touch threshold value has been started to a user interface (e.g., an on-screen display 411) provided internally or externally .

When the adjustment of the touch threshold value is completed, the touch sensing processing unit 410 transmits a message that the adjustment of the touch threshold value is completed to a user interface (e.g., via the on-screen display 411) provided internally or externally Output.

The touch sensor device according to an embodiment of the present invention illustrated in FIG. 4 is the same as that of the touch sensing method according to the embodiment of the present invention described above with reference to FIGS. 1 to 3, do.

5 is a view showing a display device to which the touch sensor device of FIG. 4 is applied.

Referring to FIG. 5, a display device according to an exemplary embodiment of the present invention includes a soft touch module 501 including soft keys. In the enlarged portion 502 of the soft touch module 501, the power (POWER), input (INPUT), menu, confirmation, channel up (CH +), channel down (CH-), volume up Down (Vol-_) as a soft key. It is obvious that according to the embodiment, a different key may be employed with a different key than the above-described soft touch module.

Here, the soft key refers to an operation key for detecting a contact of a user's finger or the like and performing a predetermined operation. The sensor unit 100 included in the touch sensor device 400 of FIG. 4 may be applied to the soft key of FIG. In addition, the surface of the soft key in Fig. 5 corresponds to the conductive material substrate 110 of Fig. 1 in the same manner. That is, a plurality of the sensor units 100 of FIG. 4 may be combined to form one soft touch module 501.

The soft touch module 501 of FIG. 5 is designed to execute a command corresponding to a user input after a user inputs a soft key and the user senses a user input.

5, the soft touch module may be installed at a portion different from the portion shown in FIG. 5, such as the front portion, the side portion, and the rear portion of the front projection portion of the display device .

FIG. 6 is a view showing a soft touch module to which the touch sensor device of FIG. 4 is applied.

Referring to FIG. 6, the soft touch module 601 according to an embodiment of the present invention is implemented by a touch sensor or a touch screen, and includes a plurality of sensors 602, and detects a user input touched by the sensor Data is input. The touch sensor or the touch screen may have the form of, for example, a touch film, a touch sheet, a touch pad, or the like.

Here, the touch sensor 602 corresponds to the sensor unit 100 of FIG. 4 described above, and the controller 603 corresponds to the touch sensing processor 410 of FIG.

The touch sensor 602 converts a pressure applied to a specific part of the soft touch module or a capacitance (capacitance value) generated at a specific part into an electrical input signal, and then transmits the electrical input signal to the controller 603. The electrical input signal output from the touch sensor 602 may be converted into a digital value and then transmitted to the controller 603. [

FIG. 7 is a block diagram illustrating a display device to which the touch sensor device of FIG. 4 is applied.

Referring to FIG. 7, a display device 700 according to an embodiment of the present invention includes a soft touch module 770 and a control unit 730. In addition, it may include a video / audio processing unit 701, an interface unit 750, a storage unit 760, an audio output unit 775, a user input unit 755, and the like in accordance with the embodiment. The soft touch module 770 of FIG. 7 corresponds to the soft touch module 601 of FIG. 6, and is a block diagram of the soft touch module 601.

The video / audio processing unit 701 processes the inputted video signal or audio signal so that the video or audio can be output to the display unit 777 and the audio output unit 775 of the display device 700. [ For this, the video / audio processing unit 701 may include a signal input unit 710, a demodulation unit 720, and a signal processing unit 780.

The signal input unit 710 to which the video / audio signal is input includes a tuner unit 711, an A / V input unit 712, a USB input unit 713, a wireless signal input unit 714, a network connection unit (not shown) And the like.

When the received signal is a radio frequency (RF) signal having a specific frequency band, the signal input unit 710 can convert it into an intermediate frequency (IF) signal and output it.

The demodulation unit 720 restores a signal transmitted from the signal input unit 710 to a signal at the time of transmission at a broadcasting station or the like, and outputs the signal. That is, the demodulator 720 demodulates the input signal and outputs the demodulated signal.

The signal processor 780 performs signal processing such as error correction and signal quality improvement on the signal transmitted from the demodulator 720 and outputs the signal.

The display unit 777 displays a screen corresponding to the video signal output from the video / audio processing unit 701 on a display panel (not shown) provided internally. Hereinafter, an image screen displayed by a display panel (not shown) of the display unit 777 is referred to as a display screen.

The audio output unit 775 receives the audio signal output from the video / audio processing unit 701 and converts the received audio signal into a physical vibration signal so that the user can listen to the audio signal.

The interface unit 750 receives the control signal from the remote control device 790 and transmits the received control signal to the control unit 730 so that the predetermined operation requested by the interface unit 750 can be performed.

Here, the remote control device 790 may be a remote controller or the like as a means for controlling the video display device.

Since the soft touch module 770 corresponds to the soft touch module 601 of FIG. 6, detailed description thereof will be omitted.

The storage unit 760 stores predetermined data in response to a storage command of the control unit 730. [ In addition, the data transmitted from the video / audio processing unit 701 can be stored under the control of the control unit 730. [

The user input unit 755 may comprise a keypad or a button. Also, in response to a request of the user according to the operation of the keypad or button, the user request is transmitted to the control unit 730 so that the user can perform the requested item. For example, when a user requests a broadcast channel change, the broadcast channel change request is transmitted to the control unit 730. Then, the control unit 730 performs channel change.

The control unit 730 controls the overall operation and the command for displaying the image screen of the display device 700.

The terminology used in the present invention is defined in consideration of the functions of the present invention, and it may vary depending on the intention or custom of a technician working in the field. Therefore, .

The present invention is not limited to the above-described embodiments and various changes and modifications may be made by those skilled in the art, which is included in the spirit and scope of the present invention as defined in the appended claims.

100:
105: Capacitive touch sensor
107: Voltage signal generator
110: conductive material substrate
120: Sensor pad
400: touch sensor device
410: touch detection processing unit
411: On-Screen Display
501, 601: Soft touch module
602: touch sensor
700: Display device
701: Video / audio processing unit
710: Signal input section
711: Tuner section
712: A / V input section
713: USB input
714: radio signal input section
720:
730:
750:
755: User input
760:
790: Remote control device

Claims (14)

A touch sensing method using a touch sensor,
Measuring individual touch sensitivity having different values according to a capacitance of a specific user to use the touch sensor, wherein the individual touch sensitivity includes a first voltage signal generated when the specific user touches the touch sensor, ;
Setting a second peak value having a predetermined margin from a first peak value of the first voltage signal to a touch threshold value as a reference touch sensitivity for recognizing whether or not to touch the second peak value, 1 < / RTI > peak value;
Setting a second duration having a predetermined margin from a first duration of the first voltage signal to a touch threshold time that is a minimum time that can be determined to be a touch; And
And sensing the touch by applying the set touch threshold value and the touch threshold time. The method according to claim 1,
The touch sensor
Wherein the capacitive touch sensor is a capacitive touch sensor. The method according to claim 1,
Further comprising the step of selecting whether to measure the individual touch sensitivity in a predetermined user interface. The method of claim 3,
Further comprising the step of outputting, via the predetermined user interface, an adjustment start message for starting the setting of the touch threshold value and the touch threshold time after measuring the individual touch sensitivity. 5. The method of claim 4,
When the setting of the touch threshold value and the touch threshold time is completed, outputting an adjustment completion message for setting the touch threshold value and the touch threshold time through the predetermined user interface, A touch sensing method. 6. The method of claim 5,
Wherein the predetermined user interface is an on-screen display. The method according to claim 1,
The individual touch sensitivity is repeatedly measured twice or more,
Wherein the touch threshold value and the touch threshold time are set according to an average value of the individual touch sensitivities measured twice or more times. A capacitive touch sensor including capacitors formed therein depending on whether a specific user touches the touch pad, including a touch pad;
A voltage signal generator for generating and outputting a voltage signal corresponding to a voltage charged in the capacitors;
Measuring the individual touch sensitivity having a different value according to the capacitance of the specific user to use the capacitive touch sensor, setting a touch threshold value as a reference touch sensitivity for recognizing whether the capacitive touch sensor is to be touched, A touch sensing processor for sensing the touch by applying the touch signal; And
And a storage unit for storing the set touch threshold value,
The touch-
A second peak value having a predetermined margin from a first peak value of a first voltage signal included in the individual touch sensitivity, which is generated when the specific user touches the touch sensor, to a touch threshold value To the touch sensor device. delete 9. The method of claim 8,
Wherein the touch sensing processor selects whether to measure the individual touch sensitivity through a predetermined user interface provided internally or externally. 11. The method of claim 10,
Wherein the touch sensing processing unit outputs an adjustment start message for starting the touch threshold value setting after measuring the individual touch sensitivity through the predetermined user interface. 12. The method of claim 11,
Wherein the touch sensing processor outputs an adjustment completion message to complete the setting of the touch threshold value through the predetermined user interface when the touch threshold value setting is completed. 9. The method of claim 8,
Wherein the touch sensing processing unit repeatedly measures the individual touch sensitivity twice or more and is set according to an average value of the individual touch sensitivities. 9. The method of claim 8,
Wherein the individual touch sensitivity is measured by contacting the user's finger with the touch pad.

Images