CN103186266B - The method of adjustment sensitivity of touch panel - Google Patents

Abstract

A method for adjusting the sensitivity of a touch panel, comprising the following steps: establishing a lookup table, the lookup table includes a charge state lookup table and a non-charge state lookup table, the charge state lookup table includes a touch signal threshold value V _0m , and The electric quantity A _0i corresponding to the touch signal threshold V _0m , and an operation method g ₁ ; the non-charging state lookup table includes a touch signal threshold V _0m , the electric quantity corresponding to the touch signal threshold V _0m A _0i , and a calculation method g ₂ ; detect the current power, and determine whether it is in a charging state; adjust the touch control according to the current power, charging or non-charging state, and the calculation methods g ₁ and g ₂ in the look-up table Signal threshold V _0m .

Description

How to adjust the sensitivity of the touch panel

technical field

The invention relates to a method for adjusting the sensitivity of a touch panel.

Background technique

In recent years, along with the high performance and diversification of various electronic devices such as mobile phones and touch navigation systems, the number of electronic devices in which a light-transmitting touch panel is mounted on the front of a display device such as a liquid crystal is increasing. A user of such an electronic device performs operations by pressing the touch panel with a finger, a stylus, or the like while visually confirming display contents of a display device located on the back of the touch panel through the touch panel. Thereby, various functions of the electronic device can be operated.

According to different working principles and transmission media of touch panels, existing touch panels are divided into four types, namely resistive, capacitive, infrared and surface acoustic wave. Among them, the capacitive touch panel is widely used because of its high sensitivity and small touch force required (Li Shuben, Wang Qingdi, Ji Jianhua, Optoelectronic Technology, Vol.15, P62(1995)).

The capacitive touch panel mainly utilizes the way of sensing the capacitance of the human body to achieve the purpose of touch control. However, the capacitive touch panel is easily disturbed by the environmental electric field and static electricity. When the capacitive touch panel is connected to the charger for charging, the grounding of the charger causes the entire circuit board where the capacitive touch panel is located and the human body to produce a common ground capacitance multiplication effect, which increases the inductance and makes the capacitive touch panel overly sensitive ; When the power of the capacitive touch panel is gradually depleted, the sensitivity of the capacitive touch panel will continue to decrease. The above-mentioned capacitive touch panel is too sensitive or the sensitivity is reduced, which affects the use of the capacitive touch panel.

Contents of the invention

In view of this, it is indeed necessary to provide a method for adjusting the sensitivity of the touch panel.

A method for adjusting the sensitivity of a touch panel, comprising the following steps: establishing a lookup table, the lookup table includes a charge state lookup table and a non-charge state lookup table, the charge state lookup table includes a touch signal threshold value V _0m , and The electric quantity A _0i corresponding to the touch signal threshold V _0m , and an operation method g ₁ ; the non-charging state lookup table includes a touch signal threshold V _0m , the electric quantity corresponding to the touch signal threshold V _0m A _0i , and a calculation method g ₂ ; detect the current power, and determine whether it is in a charging state; adjust the touch control according to the current power, charging or non-charging state, and the calculation methods g ₁ and g ₂ in the look-up table Signal threshold V _0m .

Compared with the prior art, the present invention uses the device system to inform the touch panel whether it is currently charging and the current power, and then the touch panel uses the lookup table established in the controller to change the threshold value of the touch signal. In this way, as the strength of the touch signal varies, the corresponding threshold value of the touch signal can be adjusted, thereby adjusting the sensitivity of the touch panel.

Description of drawings

FIG. 1 is a flowchart of a method for adjusting sensitivity of a touch panel provided by an embodiment of the present invention.

FIG. 2 is a top view structural diagram of a capacitive touch panel used in a method for adjusting the sensitivity of a touch panel provided by an embodiment of the present invention.

3 is a schematic cross-sectional structure diagram of a capacitive touch panel used in a method for adjusting the sensitivity of a touch panel provided by an embodiment of the present invention.

4 is a scanning electron micrograph of a carbon nanotube film in a capacitive touch panel used in the method for adjusting the sensitivity of a touch panel provided by an embodiment of the present invention.

FIG. 5 is a flow chart of steps for establishing a look-up table in a charging state in the method for adjusting the sensitivity of a touch panel provided by an embodiment of the present invention.

FIG. 6 is a flow chart of steps of establishing a look-up table in a non-charging state in the method for adjusting the sensitivity of a touch panel provided by an embodiment of the present invention.

FIG. 7 is a schematic diagram of a specific establishment process of a look-up table in a charging state in the method for adjusting the sensitivity of a touch panel provided by an embodiment of the present invention.

FIG. 8 is a schematic diagram of a specific establishment process of a look-up table in a non-charging state in the method for adjusting the sensitivity of a touch panel provided by an embodiment of the present invention.

Explanation of main component symbols

capacitive touch panel 10 touch area 10A Routing area 10B insulating substrate 12 Adhesive layer 13 transparent conductive layer 14 electrode 16 wire 18 controller 11 Device system 20 touch point 19

The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings.

detailed description

The method for adjusting the sensitivity of the touch panel provided by the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Referring to Fig. 1, the present invention provides a method for adjusting the sensitivity of a touch panel, which includes the following steps:

S1. Establish a lookup table, the lookup table includes a charging state lookup table and a non-charging state lookup table, the charging state lookup table includes a touch signal threshold value V _0m , and an electric quantity A corresponding to the touch signal threshold value V _{0m 0i} , and an operation method g ₁ ; the non-charging state lookup table includes a touch signal threshold V _0m , an electric quantity A _0i corresponding to the touch signal threshold V _0m , and an operation method g ₂ .

S2. Detect the current power level, and determine whether it is in a charging state.

S3. Adjust the touch signal threshold value V _0m according to the current power quantity, charging or non-charging state, and the calculation methods g ₁ and g ₂ in the look-up table.

The method for adjusting the sensitivity of the touch panel in the present invention is suitable for a capacitive touch panel, and the capacitive touch panel may have the following structure.

2 and 3, the embodiment of the present invention provides a capacitive touch panel 10, the capacitive touch panel 10 includes an insulating substrate 12, an adhesive layer 13, a transparent conductive layer 14, a plurality of electrodes 16. A plurality of wires 18.

The capacitive touch panel 10 defines two areas: a touch area 10A and a wiring area 10B. The touch area 10A is an area where the capacitive touch panel 10 can be touched to realize a touch function, and the wiring area 10B is an area where a plurality of wires 18 are arranged in the capacitive touch panel 10 . The wiring area 10B is a relatively small area near the edge of the capacitive touch panel 10 , which may be located on at least one side of the touch area 10A. The touch area 10A is a relatively large area including the central area of the capacitive touch panel 10 . The wiring area 10B is generally located on the periphery of the touch area 10A. That is, the area of the capacitive touch panel 10 located in the middle and occupying the main area is defined as the touch area 10A, and the edge area located around the touch area 10A is defined as the wiring area 10B, and the touch area 10A and the wiring area The positional relationship of 10B is not limited and can be selected as required. In this embodiment, the touch area 10A is the central area of the capacitive touch panel 10 , and the wiring area 10B surrounds the touch area 10A. The shape of the touch area 10A is the same as that of the capacitive touch panel 10 and its area is smaller than that of the capacitive touch panel 10 . The trace area 10B is an area other than the touch area 10A.

The adhesive layer 13 is disposed on a surface of the insulating substrate 12 , the transparent conductive layer 14 and a plurality of wires 18 are disposed on a surface of the adhesive layer 13 , and the electrodes 16 are disposed on a surface of the transparent conductive layer 14 . Wherein, the transparent conductive layer 14 is disposed on the surface of the insulating substrate 12 located in the touch region 10A, and the plurality of wires 18 are disposed on the surface of the insulating substrate 12 located in the wiring region 10B. The plurality of electrodes 16 are arranged on one side or two opposite sides of the transparent conductive layer 14 at intervals, and each electrode 16 is electrically connected to the transparent conductive layer 14 . The number of the wires 18 is equal to the number of the electrodes 16 , one end of each wire 18 is electrically connected to an electrode 16 , and the other end is electrically connected to an external controller 11 . The wire 18 electrically connects the transparent conductive layer 14 to an external controller 11 through the electrode 16 , and is used for the transmission of electric signals between the electrode 16 and an external controller 11 . The controller 11 is connected with a device system 20 for transmission of electrical signals between the device system 20 and the controller 11 .

It can be understood that the adhesive layer 13 is an optional element, that is, the transparent conductive layer 14, the electrodes 16, and the wires 18 can be plated on the insulating substrate 12, or the transparent conductive layer 14 has better adhesion. , can be directly adhered to the insulating substrate 12 without using an adhesive.

The material of the transparent conductive layer 14 is not limited, and may be any one of a carbon nanotube layer, an ITO (indium tin oxide) conductive layer, a TAO (tin antimony oxide) conductive layer, and the like.

The carbon nanotube layer includes at least one carbon nanotube film. When the carbon nanotube layer includes a plurality of carbon nanotube films, the carbon nanotube films may be substantially parallel and coplanar without gaps or stacked. Please refer to FIG. 4 , the carbon nanotube film is a self-supporting structure composed of several carbon nanotubes. The plurality of carbon nanotubes are preferentially aligned along the same direction. The overall extension direction of most carbon nanotubes in the carbon nanotube film basically faces the same direction. Also, the overall extension direction of the majority of carbon nanotubes is substantially parallel to the surface of the carbon nanotube film. Further, most of the carbon nanotubes in the carbon nanotube film are connected end to end by Van Der Waals force. The carbon nanotube film does not need a large-area carrier support, but as long as the supporting force is provided on the opposite sides, it can be suspended in the air as a whole and maintain its own film state, that is, the carbon nanotube film is placed (or fixed) on two spaced apart. When placed on two supports, the carbon nanotube film located between the two supports can be suspended in the air to maintain its own film state.

The look-up table in the above step S1 may be established in the controller, and the look-up table includes two parts: 1. a look-up table of charging state, and 2. a look-up table of non-charging state.

1. Please refer to Figure 5, the look-up table of charging status can be established through the following steps:

S11. Detect the electric quantity A _0i at a certain time t, touch the touch panel at this time t, obtain the sensing signal V _0i of the touch point 19, and set a touch signal threshold V _0m , V _0i > V _0m ;

S12. Detect the electric quantity A _1i at the next time t+1, and touch the touch panel at the time t+1, obtain the sensing signal V _1i of the touch point 19, and set a touch signal threshold V _1m , V _1i >V _1m , A _1i >A _0i , and V _0i -V _0m =V _1i -V _1m ;

S13. Establish change relationship f ₁ , f ₂ , f ₁ (V _0i , A _0i , A _1i )=V _1i , f ₂ (V _0m , V _1i , V _0i )=V _1m , according to the change relationship f ₁ and f ₂ , the calculation method g ₁ for converting the touch signal threshold value V _nm according to V _0m , A _0i , A _1i , g ₁ (V _0m , A _0i , A _ni )=V _nm , where A _ni is the detection The electric quantity at time t+n, and the V _nm is the threshold value of the touch signal at time t+n.

In the charging state, since the electric quantity of the touch panel increases rapidly, the electric quantity A _0i at a certain moment t is smaller than the electric quantity A _1i at the next moment t+1.

The above symbols i and n represent a certain moment when the touch panel is touched, i=1, 2, 3... (i>0), m=0, 1, 2, 3... (m≧0), n =0, 1, 2, 3...(n≧0).

There are many ways to establish the change relationship f ₁ and f ₂ , as long as f ₁ (V _0i , A _0i , A _1i )=V _1i , f ₂ (V _0m , V _1i , V _0i )=V _1m . In the embodiment of the present invention, the change relationship f ₁ is the ratio relationship between the product of V _0i and A _1i and A _0i , namely , where L _0i is the The coefficient that needs to be multiplied when converted to V _1i ; the change relationship f ₂ is the ratio relationship between the product of V _0m and V _1i and V _0i , that is , where K _0i is the The coefficient that needs to be multiplied to convert to V _1m ; according to the change relationship f ₁ and f ₂ , the calculation method g ₁ to obtain V _nm according to V _0m , A _ni , and A _0i is obtained, namely .

2. Please refer to Figure 6, the non-charging state lookup table can be established through the following steps:

S11. Detect the electric quantity A _0i at a certain time t, touch the touch panel at this time t, obtain the sensing signal V _0i of the touch point 19, and set a touch signal threshold V _0m , V _0i > V _0m ;

S12. Detect the electric quantity A _1i ' of the next time t+1, and touch the touch panel at the time t+1, obtain the sensing signal V _1i ' of the touch point 19, and set a touch signal threshold Value V _1m ', V _1i '>V _1m ', A _1i '<A _0i , and V _0i - V _0m = V _1i ' - V _1m ';

S13. Establish change relationship f ₁ ', f ₂ ', f ₁ '(V _0i , A _0i , A _1i ')=V _1i ', f ₂ '(V _0m , V _1i ', V _0i )=V _1m ' , according to the change relationship f ₁ ' and f ₂ ', the calculation method g ₂ , g ₂ (V _0m , A _0i , A _1i ' to convert the touch signal threshold value V _nm ' is _{obtained ) ni} ')=V _nm ', the A _ni ' is the electric quantity at the detection time t+n, and the V _nm ' is the threshold value of the touch signal at the time t+n.

In the non-charging state, since the power of the touch panel gradually decreases with time, the power A _0i at a certain moment t is greater than the power A _1i ′ at the next time t+1.

The above symbols i and n represent a certain moment when the touch panel is touched, i=1, 2, 3... (i>0), m=0, 1, 2, 3... (m≧0), n =0, 1, 2, 3...(n≧0).

There are many ways to establish the change relationship f ₁ ', f ₂ ', as long as f ₁ '(V _0i , A _0i , A _1i ')=V _1i ', f ₂ '(V _0m , V _1i ', V _0i )=V _1m '. In the embodiment of the present invention, the variation relationship f ₁ ' is the ratio relationship between the product of V _0i and A _1i ' and A _0i , namely , where M _0i is the The coefficient that needs to be multiplied when converted to V _1i '; the change relationship f ₂ ' is the ratio relationship between the product of V _0m and V _1i ' and V _0i , namely , where N _0i is the Converting to V _1m ' needs to be multiplied; according to the change relationship f ₁ ', f ₂ ', obtain the calculation method g ₂ of V _nm ' according to V _0m , A _ni ', A _0i , that is .

The touch point 19 can be a single point, and can also be a plurality of touch points 19 formed by multiple touch objects touching on the capacitive touch panel at the same time. Signal thresholds are the same. The threshold value of the touch signal and the sensing signal can be a voltage value or a capacitance value at the same time.

In step S2, use a device system 20 to first detect whether the current touch panel is in a charging state or a non-charging state, as well as the current power A _ni , and then send a signal of whether to charge and the current power A _ni to the touch panel. control panel. The timing of the device system 20 transmitting the signal of whether to charge and the current electric quantity A to the _touch panel is not limited. It can be sent to the touch panel by the device system 20 at regular intervals when no touch occurs; or when a touch occurs. The first touch is sent to the touch panel. The device system 20 may transmit the signal of whether to charge or not and the current electric quantity A _ni to the touch panel through any transmission method, for example, I2C, SPI, UART, or even GPIO.

In step S3, after the touch panel receives the charging state and the power in the charging state, or the non-charging state and the power in the non-charging state transmitted by the device system 20, according to the established in the controller, Look up the touch signal threshold value in the table, the corresponding electric power and the calculation method g, and adjust the touch signal threshold value.

Please refer to FIG. 2 and FIG. 7 together. The present invention uses an example to specifically illustrate how to establish a look-up table in a charging state. Said i=1, m=0.

First, the device system 20 detects that the electric quantity A ₀₁ of the touch panel is 20 milliamps at time t, and touches the touch panel at this time t to obtain a sensing voltage V ₀₁ of the touch point 19 as 2 volts, and A touch voltage threshold V ₀₀ is set, assuming V ₀₀ =1 volt.

Secondly, the device system 20 detects that the power A ₁₁ of the touch panel at the next time t+1 is 30 mA, and touches the touch panel at this time t+1 to obtain the sensing voltage V ₁₁ of the touch point 19 is 4 volts, and a touch voltage threshold V ₁₀ is set, since V ₀₁ -V ₀₀ =V ₁₁ -V ₁₀ , then V ₁₀ =3 volts.

To make L ₀₁ ×V ₀₁ A ₁₁ /A ₀₁ =V ₁₁ , that is, L ₀₁ ×A ₁₁ /A ₀₁ =V ₁₁ /V ₀₁ , then L ₀₁ ×30/20=4/2, so L ₀₁ is 4/ 3, namely f ₁ (V ₀₁ , A ₀₁ , A ₁₁ )=(4/3)×V ₀₁ A ₁₁ /A ₀₁ =V ₁₁ . To make K ₀₁ ×V ₀₀ V ₁₁ /V ₀₁ =V ₁₀ , that is, K ₀₁ ×V ₁₁ /V ₀₁ =V ₁₀ /V ₀₀ , then K ₀₁ ×4/2=3/1, so K ₀₁ is 3/ 2, namely f ₂ (V ₀₀ , V ₁₁ , V ₀₁ )=(3/2)×V ₀₀ V ₁₁ /V ₀₁ =V ₁₀ . According to the changing relationship f ₁ and f ₂ , the calculation method g is obtained, that is, (4/3)×(3/2)×V ₀₀ A _n1 /A ₀₁ =2×V ₀₀ A _n1 /A ₀₁ =V _n0 . n=0, 1, 2, 3... (n≧0). In this way, the look-up table in the charging state includes a touch signal threshold value V ₀₀ ; an electric quantity A ₀₁ corresponding to the touch signal threshold value V ₀₀ ; and an operation method g ₁ , the operation method g ₁ satisfies g ₁ (V ₀₀ , A ₀₁ )=2×V ₀₀ A _n1 /A ₀₁ =V _n0 .

At time t+n, if the device system 20 detects that the current power A _n1 of the touch panel is 40 milliamps, then at this time, the touch panel receives the charging status and the charging status sent by the device system 20. After the power A _n1 , according to the touch signal threshold value V ₀₀ =1 volt in the look-up table established in the controller, the corresponding power A ₀₁ =20 mA and the calculation method g ₁ (V ₀₀ , A ₀₁ ) =2×V ₀₀ A _n1 /A ₀₁ =V _n0 , adjust the touch signal threshold V _n0 to be 4 volts.

Please refer to FIG. 2 and FIG. 8 together. The present invention uses an example to specifically illustrate how to establish a look-up table in a non-charging state. Said i=1, m=0.

First, the device system 20 detects that the electric quantity A ₀₁ of the touch panel is 60 milliamps at time t, and touches the touch panel at this time t, and obtains that the sensing voltage V ₀₁ of the touch point 19 is 5 volts, and A touch voltage threshold V ₀₀ is set, assuming V ₀₀ =4 volts.

Secondly, the device system 20 detects that the power A ₁₁ ′ of the touch panel is 50 mA at the next time t+1, and touches the touch panel at this time t+1 to obtain the sensing voltage V of the touch point 19 ₁₁ ′ is 4.5 volts, and a touch voltage threshold value V ₁₀ ′ is set, since V ₀₁ −V ₀₀ =V ₁₁ ′−V ₁₀ ′, then V ₁₀ ′=3.5 volts.

To make L ₀₁ ×V ₀₁ A ₁₁ '/A ₀₁ =V ₁₁ ', that is, L ₀₁ ×A ₁₁ '/A ₀₁ =V ₁₁ '/V ₀₁ , then L ₀₁ ×50/60=4.5/5, so L ₀₁ is 54/50, that is, f ₁ '(V ₀₁ , A ₀₁ , A ₁₁ ')=(54/50)×V ₀₁ A ₁₁ '/A ₀₁ =V ₁₁ '. To make K ₀₁ ×V ₀₀ V ₁₁ '/V ₀₁ =V ₁₀ ', namely K ₀₁ ×V ₁₁ '/V ₀₁ =V ₁₀ '/V ₀₀ , then K ₀₁ ×4.5/5=3.5/4, so K ₀₁ is 35/36, that is, f ₂ (V ₀₀ , V ₁₁ ', V ₀₁ )=(35/36)×V ₀₀ V ₁₁ '/V ₀₁ =V ₁₀ . According to the change relationship f ₁ ' and f ₂ ', the calculation method g ₂ is obtained, namely (54/50)×(35/36)×V ₀₀ A _n1 '/A ₀₁ =(105/4)×V ₀₀ A _n1 '/A ₀₁ =V _n0 '. n=0, 1, 2, 3... (n≧0). In this way, the look-up table in the charging state includes a touch signal threshold value V ₀₀ ; an electric quantity A ₀₁ corresponding to the touch signal threshold value V ₀₀ ; and an operation method g ₂ , the operation method g ₂ satisfies g ₂ (V ₀₀ , A ₀₁ )=(21/20)×V ₀₀ A _n1 '/A ₀₁ =V _n0 '.

At time t+n, if the device system 20 detects that the current power A _n1 ′ of the touch panel is 40 milliamps, then at this time, the touch panel receives the charging status sent by the device system 20 and the charging status After the power A _n1 ', according to the touch signal threshold value V ₀₀ =4 volts in the look-up table established in the controller, the corresponding power A ₀₁ =60 mA and the calculation method g(V ₀₀ , A ₀₁ )=(21/20)×V ₀₀ A _n1 '/A ₀₁ =V _n0 , adjust the touch signal threshold V _n0 ' to 2.8 volts.

It can be understood that the establishment of the variation relationships f ₁ , f ₂ , f ₁ ′, and f ₂ ′ can take various forms, such as difference, ratio or more complex forms; the variation relationships f ₁ , f ₂ , f ₁ ′ and f ₂ ′ can be established based on the electric power detected at a certain time t and the next time t+1, the sensing signal of the touch point 19 and the corresponding touch signal threshold, or can be established based on three or more The electric power detected at each moment, the sensing signal of the touch point 19 and the corresponding threshold value of the touch signal are established. Moreover, it can be understood that when the change relationship f ₁ , f ₂ , f ₁ ′, and f ₂ ′ established according to the electric quantity detected at different times, the sensing signal of the touch point 19 and the corresponding touch signal threshold value, the detected The more times there are, the more accurate the established variation relationships f ₁ , f ₂ , f ₁ ′, f ₂ ′ are, and thus the more accurate the calculation methods g ₁ , g ₂ are.

The advantage of the method for adjusting the sensitivity of the touch panel provided by the present invention is that the present invention uses the device system to inform the touch panel whether it is currently charging and the current power, and then the touch panel uses the query table established in the controller to change the touch panel. control signal threshold. In this way, as the strength of the touch signal varies, the corresponding threshold value of the touch signal can be adjusted, thereby adjusting the sensitivity of the touch panel.

In addition, those skilled in the art can also make other changes within the spirit of the present invention, and these changes made according to the spirit of the present invention should be included in the scope of protection claimed by the present invention.

Claims (9)

1. adjust a method for sensitivity of touch panel, comprise the following steps:

Set up question blank, this question blank comprises charged state question blank and non-charged state question blank, and described charged state question blank comprises a touching signals threshold value V _0m, with this touching signals threshold value V _0mcorresponding electricity A _0i, and an operational method g ₁; Described non-charged state question blank comprises a touching signals threshold value V _0m, with this touching signals threshold value V _0mcorresponding electricity A _0i, and an operational method g ₂;

Detect current electricity, and determine whether to be in charged state;

In the charge state, the electricity A of a certain moment t is detected _0i, touch described contact panel at this moment t, obtain the sensing signal V of this touch point _0i, and set a touching signals threshold value V _0m, V _0i> V _0m;

Detect the electricity A of subsequent time t+1 _1i, and touch described contact panel at this moment t+1, obtain the sensing signal V of this touch point _1i, and set a touching signals threshold value V _1m, V _1i> V _1m, A _1i> A _0i, and V _0i-V _0m=V _1i-V _1m; And

Set up variation relation f ₁, f ₂, f ₁(V _0i, A _0i, A _1i)=V _1i, f ₂(V _0m, V _1i, V _0i)=V _1m, according to described variation relation f ₁and f ₂, obtain according to V _0m, A _0i, A _niconversion touching signals threshold value V _nmoperational method g ₁, g ₁(V _0m, A _0i, A _ni)=V _nm, described A _nithe electricity detecting moment t+n, described V _nmbe the touching signals threshold value of moment t+n, above-mentioned symbol i, n representative touches described contact panel sometime, i=1,2,3 ... (i > 0), m=0,1,2,3 ... (m≤0), n=0,1,2,3 ... (n≤0).

2. the method for adjustment sensitivity of touch panel as claimed in claim 1, is characterized in that, described variation relation f ₁(V _0i, A _0i, A _1i) meet: wherein L _0ifor inciting somebody to action be scaled V _1ineed the coefficient taken advantage of; Described variation relation f ₂(V _0m, V _1i, V _0i) meet: wherein K _0ifor inciting somebody to action be scaled V _1mneed the coefficient taken advantage of.

3. the method for adjustment sensitivity of touch panel as claimed in claim 2, is characterized in that, described operational method g ₁(V _0m, A _0i, A _ni) meet:

4. adjust a method for sensitivity of touch panel, comprise the following steps:

Set up question blank, this question blank comprises charged state question blank and non-charged state question blank, and described charged state question blank comprises a touching signals threshold value V _0m, with this touching signals threshold value V _0mcorresponding electricity A _0i, and an operational method g ₁; Described non-charged state question blank comprises a touching signals threshold value V _0m, with this touching signals threshold value V _0mcorresponding electricity A _0i, and an operational method g ₂;

Detect current electricity, and determine whether to be in charged state;

Under non-charged state, detect the electricity A of a certain moment t _0i, touch described contact panel at this moment t, obtain the sensing signal V of this touch point _0i, and set a touching signals threshold value V _0m, V _0i> V _0m;

Detect the electricity A of subsequent time t+1 _1i', and touch described contact panel at this moment t+1, obtain the sensing signal V of this touch point _1i', and set a touching signals threshold value V _1m', V _1i' > V _1m', A _0i> A _1i', and V _0i-V _0m=V _1i'-V _1m'; And

Set up variation relation f ₁', f ₂', f ₁' (V _0i, A _0i, A _1i')=V _1i', f ₂' (V _0m, V _1i', V _0i)=V _1m', according to described variation relation f ₁' and f ₂', obtain according to V _0m, A _0i, A _ni' conversion touching signals threshold value V _nm' operational method g ₂, g ₂(V _0m, A _0i, A _ni')=V _nm', described A _ni' be the electricity detecting moment t+n, described V _nm' be the touching signals threshold value of moment t+n, above-mentioned symbol i, n representative touches described contact panel sometime, i=1,2,3 ... (i > 0), m=0,1,2,3 ... (m≤0), n=0,1,2,3 ... (n≤0).

5. the method for adjustment sensitivity of touch panel as claimed in claim 4, is characterized in that, described variation relation f ₁' (V _0i, A _0i, A _1i') meet: wherein M _0ifor inciting somebody to action be scaled V _1i' need the coefficient taken advantage of; Described variation relation f ₂' (V _0m, V _1i', V _0i) meet: wherein N _0ifor inciting somebody to action be scaled V _1m' need the coefficient taken advantage of.

6. the method for adjustment sensitivity of touch panel as claimed in claim 5, is characterized in that, described operational method g ₂(V _0m, A _0i, A _ni') meet:

7., as the method for claim 1 or adjustment sensitivity of touch panel according to claim 4, it is characterized in that, described touching signals threshold value and sensing signal are magnitude of voltage or capacitance simultaneously.

8., as the method for claim 1 or adjustment sensitivity of touch panel according to claim 4, it is characterized in that, described contact panel is capacitance type touch-control panel.

9. the method for adjustment sensitivity of touch panel as claimed in claim 8, is characterized in that, the transparency conducting layer in described capacitance type touch-control panel is any one in a carbon nanotube layer, a conductive indium-tin oxide layer, tin monoxide antimony conductive layer.