CN106325602A - Touch screen, touch display device and touch screen deformation detection method and device - Google Patents
Touch screen, touch display device and touch screen deformation detection method and device Download PDFInfo
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- CN106325602A CN106325602A CN201610727911.3A CN201610727911A CN106325602A CN 106325602 A CN106325602 A CN 106325602A CN 201610727911 A CN201610727911 A CN 201610727911A CN 106325602 A CN106325602 A CN 106325602A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/045—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04105—Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04107—Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds
Abstract
The application discloses a touch screen, a touch display device and a touch screen deformation detection method and device, and is used for detecting the deformation of the touch screen. The touch screen deformation detection method provided by the application comprises the following steps: obtaining the initial resistance of each lead of a closed coil which surrounds a touch screen display area, wherein the closed coil comprises at least one first class of leads formed by resistance materials with constant resistance, and at least one second class of leads formed by pressure-sensitive resistance materials; according to the initial resistance of the first class of leads, determining the current resistance of the second class of leads; and according to the initial resistance and the current resistance of the second class of leads, detecting the deformation of the touch screen.
Description
Technical field
The application relates to touch-control display field, particularly relates to a kind of touch screen, touch control display apparatus, touch screen shape changing detection
Method and device.
Background technology
Touch screen is a kind of vicarious liquid crystal indicator receiving the input signals such as contact, when contacting on screen
During graphic button, the haptic feedback system on screen can drive various attachment means according to the formula of preprogramming, may be used to take
For mechanical push button panel, and produce lively visual and sound effects by liquid crystal display picture.Touch screen is up-to-date as one
Computer input apparatus, it is current man-machine interaction mode the simplest, convenient, a kind of, can be widely applied to public
The inquiry of information, leader's office, Industry Control, military commanding, electronic game, choosing song or selecting dish, multimedia teaching, real estate presell
Deng.
But, owing to touch screen is the most frivolous, on the one hand, in manufacturing process, when assembling with other parts, pole holds
Be easily generated warpage, heave, the deformation such as extruding, on the other hand, during the use of touch screen, if user is by bigger dynamics
During pressing touch screen, also result in touch screen and produce relatively large deformation.Produce the touch screen of deformation, touch screen usually can be made to produce aobvious
The problem showing distortion.And for the deformation of touch screen, be typically difficult to detect by naked eyes.
Summary of the invention
The application provides a kind of touch screen, touch control display apparatus, touch screen deformation detecting method and device, with to touch screen
Deformation detect.
The embodiment of the present application provides a kind of touch screen deformation detecting method, and described method includes:
Obtain the initial resistance of each wire of the closing coil surrounding touch screen viewing area；Wherein, described closing coil
Including at least first kind wire formed by the resistance material that resistance is constant, and at least one by pressure sensitivity resistance material shape
The Equations of The Second Kind wire become；
According to the initial resistance of described first kind wire, determine the current resistance of described Equations of The Second Kind wire；
Initial resistance according to described Equations of The Second Kind wire and current resistance, detect the deformation of described touch screen.
Preferably, described closing coil is made up of four wires, and described first kind wire includes the first wire, the second wire
And privates, described Equations of The Second Kind wire includes that privates, described first wire and described second wire pass through primary nodal point
Connecting, described second wire and described privates are connected by secondary nodal point, and described privates and described privates lead to
Crossing the 3rd node to connect, described privates and described first wire are connected by fourth node.
Preferably, according to the initial resistance of described first kind wire, determine the current resistance of described Equations of The Second Kind wire, specifically
Including:
Obtain described primary nodal point and described 3rd node apply the first voltage, and obtain described secondary nodal point and
The second voltage between described fourth node, initial according to described first wire, described second wire and described privates
Resistance, and, described first voltage and described second voltage, determine the current resistance of described privates；
Or, obtain the tertiary voltage applied at described secondary nodal point and described fourth node, and obtain described first
The 4th voltage between node and the 3rd node, at the beginning of described first wire, described second wire and described privates
Beginning resistance, and, described tertiary voltage and described 4th voltage, determine the current resistance of described privates.
The touch screen deformation detecting method that the embodiment of the present application provides, is provided with by four sections in the periphery of touch screen viewing area
The closing coil that wire surrounds, according to favour Stone circuit principle, by applying voltage at the most non-conterminous two nodes, permissible
Measure the voltage obtaining two other node, and then may determine that the resistance of the privates formed by pressure sensitivity resistance material becomes
Change, owing to privates are the integrative-structure being connected with touch screen, and then when determining the 4th resistance deformation, it is also possible to it is right to realize
The deformation of touch screen detects.
Preferably, according to described first wire, described second wire and the initial resistance of described privates, and, institute
State the first voltage and described second voltage, determine the current resistance of described privates, specifically include:
The current resistance of described privates is determined by below equation:
Wherein, V2Represent described second voltage, V1Represent described first voltage, R1Represent the initial electricity of described first wire
Resistance, R2Represent the initial resistance of described second wire, R3Representing the initial resistance of described privates, R represents described privates
Current resistance；
Or, according to described first wire, described second wire and the initial resistance of described privates, and, described
Tertiary voltage and described 4th voltage, determine the current resistance of described privates, specifically include:
The current resistance of described privates is determined by below equation:
Wherein, V4Represent described 4th voltage, V3Represent the described tertiary voltage of described applying, R1Represent that described first leads
The initial resistance of line, R2Represent the initial resistance of described second wire, R3Representing the initial resistance of described privates, R represents institute
State the current resistance of privates.
Preferably, according to initial resistance and the current resistance of described Equations of The Second Kind wire, detect the deformation of described touch screen, tool
Body includes:
Initial resistance according to described privates and current resistance, determine the resistance change of described privates；
Initial resistance according to described privates and resistance change, determine the deformation of described privates；
According to the deformation of described privates, detect the deformation of described touch screen.
Preferably, according to initial resistance and the resistance change of described privates, institute is determined especially by below equation
State the deformation of privates:
Wherein, ε represents the deformation of described privates, and GF represents the preset property parameter value of described privates, Δ R table
Show the resistance change of described privates, R4Represent the initial resistance of described privates.
The embodiment of the present application provides a kind of touch screen deformation detecting device, and described device includes:
First module, for obtaining the initial resistance of each wire of the closing coil surrounding touch screen viewing area；Wherein,
Described closing coil includes at least first kind wire formed by the resistance material that resistance is constant, and at least one by pressing
The Equations of The Second Kind wire that sensing resistor material is formed；
Second unit, for the initial resistance according to described first kind wire, determines the current electricity of described Equations of The Second Kind wire
Resistance；
Unit the 3rd, for the initial resistance according to described Equations of The Second Kind wire and current resistance, detects described touch screen
Deformation.
Preferably, described closing coil is made up of four wires, and described first kind wire includes the first wire, the second wire
And privates, described Equations of The Second Kind wire includes that privates, described first wire and described second wire pass through primary nodal point
Connecting, described second wire and described privates are connected by secondary nodal point, and described privates and described privates lead to
Crossing the 3rd node to connect, described privates and described first wire are connected by fourth node.
Preferably, described second unit, according to the initial resistance of described first kind wire, determine described Equations of The Second Kind wire
Current resistance, specifically includes:
Obtain described primary nodal point and described 3rd node apply the first voltage, and obtain described secondary nodal point and
The second voltage between described fourth node, initial according to described first wire, described second wire and described privates
Resistance, and, described first voltage and described second voltage, determine the current resistance of described privates；
Or, obtain the tertiary voltage applied at described secondary nodal point and described fourth node, and obtain described first
The 4th voltage between node and the 3rd node, at the beginning of described first wire, described second wire and described privates
Beginning resistance, and, described tertiary voltage and described 4th voltage, determine the current resistance of described privates.
Preferably, described Unit the 3rd, according to initial resistance and the current resistance of described Equations of The Second Kind wire, detects described touching
Touch the deformation of screen, specifically include:
Initial resistance according to described privates and current resistance, determine the resistance change of described privates；
Initial resistance according to described privates and resistance change, determine the deformation of described privates；
According to the deformation of described privates, detect the deformation of described touch screen.
The embodiment of the present application provides a kind of touch screen, and described touch screen is provided with the first wire, the second wire, privates
And privates, wherein, described first wire, described second wire, described privates and described privates are for surrounding institute
State four section leads of the closing coil of touch screen viewing area, described first wire and described second wire by primary nodal point even
Connecing, described second wire and described privates are connected by secondary nodal point, and described privates and described privates pass through
3rd node connects, and described privates and described first wire connected by fourth node, described first wire, described second
Wire and described privates are formed by the resistance material that resistance is constant, and described privates are formed by pressure sensitivity resistance material.
The touch screen that the embodiment of the present application provides, is provided with the closing coil surrounding viewing area, and described closing coil is by three
The section constant wire of resistance, and the wire that one section of pressure sensitivity resistance material is formed surrounds, by detection by pressure sensitivity resistance material shape
The deformation of the privates become, and then the deformation of touch screen can be detected, meanwhile, the closed line that touch screen periphery is arranged
Circle can improve the antistatic effect of touch screen.
The embodiment of the present application provides a kind of touch control display apparatus, the described touch screen provided including the embodiment of the present application and
Alarm unit, described alarm unit, for when the deformation of described touch screen reaches preset value, sends cue.
The touch control display apparatus that the embodiment of the present application provides, also includes alarm unit, and then the shape of touch screen detected
When change reaches certain predetermined value, cue can be sent, and then can facilitate, in real time the touching intensity of user be carried
Wake up, it is to avoid touch screen is due to the display distortion caused by bigger touching intensity or damage.
Accompanying drawing explanation
A kind of touch screen deformation detecting method flow chart that Fig. 1 provides for the embodiment of the present application；
The structural representation of a kind of touch screen that Fig. 2 provides for the embodiment of the present application；
The structural representation of the another kind of touch screen that Fig. 3 provides for the embodiment of the present application；
A kind of concrete touch screen deformation detecting method flow chart that Fig. 4 provides for the embodiment of the present application；
A kind of equivalent circuit diagram measuring touch screen deformation that Fig. 5 provides for the embodiment of the present application；
The another kind of equivalent circuit diagram measuring touch screen deformation that Fig. 6 provides for the embodiment of the present application；
The structural representation of a kind of touch screen deformation detecting device that Fig. 7 provides for the embodiment of the present application.
Detailed description of the invention
Below in conjunction with Figure of description, the embodiment of the present application is realized process to be described in detail.It should be noted that
The most same or similar label represents same or similar element or has the element of same or like function.Lead to below
It is exemplary for crossing the embodiment being described with reference to the drawings, and is only used for explaining the application, and it is not intended that restriction to the application.
As it is shown in figure 1, the embodiment of the present application provides a kind of touch screen deformation detecting method, this detection method includes:
Step 101, acquisition surround the initial resistance of each wire of the closing coil of touch screen viewing area；Wherein, Guan Bi
Coil includes at least first kind wire formed by the resistance material that resistance is constant, and at least one by pressure sensitivity resistance material
The Equations of The Second Kind wire that material is formed；
Step 102, initial resistance according to first kind wire, determine the current resistance of Equations of The Second Kind wire；
Step 103, according to the initial resistance of Equations of The Second Kind wire and current resistance, the deformation of detection touch screen.
In the specific implementation, when closing coil is made up of four wires, pressure sensitivity electricity can be obtained by favour Stone circuit principle
The current resistance of the Equations of The Second Kind wire that resistance material is formed, below as a example by closing coil is made up of four wires, i.e. the first kind is led
Line includes the first wire, the second wire and privates, and Equations of The Second Kind wire includes privates, and the first wire and the second wire lead to
Crossing primary nodal point to connect, the second wire and privates are connected by secondary nodal point, and privates and privates are by the 3rd
Node connects, and privates and the first wire are connected by fourth node, the touch screen providing the application and touch screen detection
Method, carries out as described below.
As in figure 2 it is shown, the embodiment of the present application provides a kind of touch screen, this touch screen includes viewing area 2 and surrounds viewing area 2
Non-display area 1, wherein, non-display area 1 is provided with first wire the 11, second wire 12, privates 13 and privates
14, wherein, first wire the 11, second wire 12, privates 13 and privates 14 are the Guan Bi surrounding touch screen viewing area 2
Four section leads of coil, the first wire 11 and the second wire 12 connected by primary nodal point A, the second wire 12 and privates 13
Being connected by secondary nodal point B, privates 13 and privates 14 are connected by the 3rd node C, and privates 14 and first are led
Line 11 is connected by fourth node D, and first wire the 11, second wire 12 and privates 13 are by the constant resistance material of resistance
Being formed, privates 14 are formed by pressure sensitivity resistance material, concrete, can be alloy monocrystalline silicon.Touch screen can be condenser type
Touch screen can also be resistive touch screen.
In the specific implementation, in order to make first wire the 11, second wire 12, privates 13 and privates 14 touch
Screen easily makes, it is preferred, therefore, that as it is shown on figure 3, first wire 11, second wire 12 of the embodiment of the present application, privates
13 and privates 14 be correspondingly arranged in four limits of touch screen respectively, accordingly, primary nodal point A, secondary nodal point B, Section three
Point C and fourth node D are correspondingly arranged at four endpoint locations of touch screen respectively.Certainly, first wire the 11, second wire
12, privates 13 and privates 14 can also be arranged at the non-display area of touch screen in another manner, can be specifically
During enforcement, arrange the most flexibly, do not limit at this.Such as, as in figure 2 it is shown, first wire the 11, second wire
12, privates 13 and privates 14 are all the limits that part is arranged at touch screen, and remainder is arranged at the phase on this limit
Adjacent side, primary nodal point A, secondary nodal point B, the 3rd node C and fourth node D are correspondingly arranged in the midpoint on four limits of touch screen respectively
Position.It addition, about the shape of touch screen, it is also possible to for circle, triangle, pentagon, hexagon, eight deformation etc., work as touch
When screen has these corresponding shapes, first wire the 11, second wire 12, privates 13 and privates 14 can be according to touching
The shape touching screen carries out respective flexible setting.Such as, during touch screen generally circular in shape, accordingly, the first wire 11, second lead
Line 12, privates 13 and privates 14 can be arranged along the circular edge of circular touch screen, form one by primary nodal point
The closed circle that A, secondary nodal point B, the 3rd node C and fourth node D are formed by connecting walks coil.
It should be noted that owing to the viewing area 2 of touch screen corresponds generally to Touch Zone, non-display area 1 typically surrounds aobvious
Showing district 2, be used for arranging cabling, therefore, the embodiment of the present application is by arranging closed line in the periphery surrounding touch screen viewing area 2
Circle, and then the deformation that touch screen produces when touching can be detected.
The touch screen that the embodiment of the present application provides, is provided with the closing coil surrounding viewing area 2, and this closing coil is by three sections
The first wire the 11, second wire 12 and privates 13 that resistance is constant, and the privates 14 of one section of pressure sensitivity resistance material
Surround, by detecting the resistance variations of privates 14, and then the detection to touch screen deformation, meanwhile, touch screen can be realized
The peripheral closing coil arranged can improve the antistatic effect of touch screen.
As shown in Figure 4, the embodiment of the present application provides a kind of touch screen deformation detecting method, for putting forward the embodiment of the present application
The touch screen of confession detects, and this detection method includes:
Step 201, obtain the first wire of touch screen non-display area to be detected, the second wire, privates and the 4th
The initial resistance of wire.
In the specific implementation, can be when making the first wire, the second wire, privates and privates, by electricity
Resistance is measured and is obtained the first wire, the second wire, privates and the initial resistance of privates respectively.
The first voltage that step 202, acquisition apply at primary nodal point and the 3rd node, obtains between second and fourth node
The second voltage, according to the first wire, the second wire and the initial resistance of privates, the first voltage of applying, and second
Voltage, determines the current resistance of privates；Or, obtain the tertiary voltage applied at secondary nodal point and fourth node, obtain
The 4th voltage between primary nodal point and the 3rd node, according to the first wire, the second wire and the initial resistance of privates, executes
The tertiary voltage added, and the 4th voltage, determine the current resistance of privates.
It should be noted that owing to closing coil is led by the first wire, the second wire, privates and privates four sections
Line forms, and the first wire, the second wire and privates resistance are constant, apply known between the non-conterminous node of any two
Voltage, by measuring the voltage that also can obtain two other node, according to favour stone principle, all can get the current of privates
Resistance.
Below as a example by the touch screen shown in Fig. 2, respectively to by applying voltage at different node, lead obtaining the 4th
The mode of the current resistance of line carries out following illustrated in greater detail.
Such as, the first voltage V applied at primary nodal point A and the 3rd node C1, obtain secondary nodal point B and fourth node D
Between the second voltage V2, Fig. 5 is equivalent circuit diagram corresponding under this kind of metering system, wherein, R1Represent at the beginning of the first wire 11
Beginning resistance, R2Represent the initial resistance of the second wire 12, R3Represent the initial resistance R of privates 133, R represents privates 14
Current resistance, i.e. the first wire 11 and privates 14 are connected, and the second wire 12 and privates 13 are connected, two-way connect
Circuit carries out parallel connection again, when applying the first voltage V at primary nodal point A and the 3rd node C1Time, can be obtained by voltage measurement
The second voltage V between secondary nodal point B and fourth node D2, according to favour stone principle, the initial resistance R of the first wire 111,
The initial resistance R of two wires 122, the initial resistance R of privates 133With the current resistance R of privates 14, the first of applying
Voltage V1, and measure the second voltage V obtained2, meet relationship below:
Initial resistance R due to the first wire 111, the initial resistance R of the second wire 122, the initial resistance of privates 13
R3, the first voltage V of applying1, and measure the second voltage V obtained2, it is it is known that then the can be obtained by relation above formula
The current resistance R of four wires 14.
The most such as, the tertiary voltage V applied at secondary nodal point B and fourth node D3, obtain primary nodal point A and the 3rd node
The 4th voltage V between C4, Fig. 6 is the equivalent circuit diagram that this kind of metering system is corresponding, wherein, R1Represent at the beginning of the first wire 11
Beginning resistance, R2Represent the initial resistance of the second wire 12, R3Represent the initial resistance R of privates 133, R represents privates 14
Current resistance, i.e. the first wire 11 and the second wire 12 are connected, and privates 13 and privates 14 are connected, two-way connect
Circuit carries out parallel connection again, when applying tertiary voltage V at secondary nodal point B and fourth node D3Time, can be obtained by voltage measurement
The 4th voltage V between primary nodal point A and the 3rd node C4, according to favour stone principle, the initial resistance R of the first wire 111,
The initial resistance R of two wires 122, the initial resistance R of privates 133With the current resistance R of privates 14, the 3rd of applying
Voltage V3, and the 4th voltage V4, meet relationship below:
Initial resistance R due to the first wire 111, the initial resistance R of the second wire 122, the initial resistance of privates 13
R3, the tertiary voltage V of applying3, and measure the 4th voltage V obtained4, it is it is known that then also can be obtained by relation above formula
The current resistance R of privates 14.
Step 203, according to the initial resistance of privates and the current resistance of privates, the deformation of detection touch screen.
In the specific implementation, can work as according to the initial resistance of the privates that pressure sensitivity resistance material is made and privates
Front resistance, determines the resistance change of privates, and then, become according to the initial resistance of privates and the resistance of privates
Change amount, further determines that the deformation of privates, finally, according to the deformation of privates, determines the deformation of touch screen.
For the initial resistance of privates made according to pressure sensitivity resistance material and the current resistance of privates, determine
The resistance change of privates, specifically can determine the resistance change of described privates by below equation:
Δ R=R-R4
Wherein, Δ R represents the resistance change of privates, and R represents the current resistance of privates, R4Represent that the 4th leads
The initial resistance of line.
For the initial resistance according to privates and the resistance change of privates, further determine that privates
Deformation, specifically can determine the deformation of privates by below equation:
Wherein, ε represents the deformation of privates, and GF represents the preset property parameter value of privates, specifically can purchase
When buying the wire of this kind of material, businessman providing, Δ R represents the resistance change of privates, R4Represent at the beginning of privates
Beginning resistance.
It should be noted that owing to the privates of the embodiment of the present application are the subregions being made in touch screen, for
The integrative-structure that touch screen connects, and then when touch screen deforms upon, pressure sensitivity resistance material the privates formed also can
Deform upon, and then by the privates detection when deformation, and then can indirectly deformation to touch screen detect.
I.e., it is possible to be the detection to pressure sensitivity resistance deformation by touch screen deformation being detected indirect reformer.Concrete, for pressure sensitivity resistance
The deformation quantity of material and the corresponding relation of the deformation grade of touch screen, can pass through by test touch screen is applied different pressures
Test obtains.
It is corresponding with above-mentioned detection method, as it is shown in fig. 7, the embodiment of the present application also provides for a kind of touch screen shape changing detection
Device, for detect the embodiment of the present application provide touch screen, this detection device includes: first module 61, second unit 62 with
And the 3rd unit 63, wherein,
First module 61, for obtaining the first wire of touch screen to be detected, the second wire, privates and privates
Initial resistance.
Second unit 62, for obtaining the first voltage applied at primary nodal point and the 3rd node, obtain secondary nodal point and
The second voltage between fourth node, according to the first wire, the second wire and the initial resistance of privates, the first electricity of applying
Pressure, and the second voltage, determine the current resistance of privates；Or, apply at secondary nodal point and fourth node for obtaining
Tertiary voltage, obtain the first and the 3rd the 4th voltage between node, according to the first wire, the second wire and privates
Initial resistance, the tertiary voltage of applying, and the 4th voltage, determine the current resistance of privates.
Preferably, at the first voltage that primary nodal point and the 3rd node apply, obtain the between second and fourth node
During two voltage, second unit 62 specifically for:
The current resistance of privates is determined by below equation:
Wherein, V2Represent the second voltage, V1Represent the first voltage applied, R1Represent the initial resistance of the first wire, R2Table
Show the initial resistance of the second wire, R3Representing the initial resistance of privates, R represents the current resistance of privates.
Preferably, at the tertiary voltage that secondary nodal point and fourth node apply, obtain the first and the 3rd the between node
During four voltage, second unit 62 specifically for:
The current resistance of privates is determined by below equation:
Wherein, V4Represent tertiary voltage, V3Represent the tertiary voltage applied, R1Represent the initial resistance of the first wire, R2Table
Show the initial resistance of the second wire, R3Representing the initial resistance of privates, R represents the current resistance of privates.
3rd unit 63, for the initial resistance according to privates and the current resistance of privates, detects touch screen
Deformation.
Preferably, the 3rd unit 63 specifically for:
The current resistance of the initial resistance sum of the wire made according to pressure sensitivity resistance material, determines that the resistance of privates becomes
Change amount, further, according to initial resistance and the resistance change of privates of privates, determines pressure sensitivity resistance material shape
Become, finally, according to the deformation of pressure sensitivity resistance material, the deformation of detection touch screen.
In the specific implementation, the current electricity of the initial resistance sum of privates for making according to pressure sensitivity resistance material
Resistance, determines that the resistance change of privates, the 3rd unit 63 specifically can determine described privates by below equation
Resistance change:
Δ R=R-R4
Wherein, Δ R represents the resistance change of privates, and R represents the current resistance of privates, R4Represent that the 4th leads
The initial resistance of line.
In the specific implementation, for the initial resistance according to privates and the resistance change of privates, further
Determining the deformation of privates, the 3rd unit 63 specifically can determine the deformation of privates by below equation:
Wherein, ε represents the deformation of pressure sensitivity resistance material, and GF represents that the characteristic parameter value of default privates, Δ R represent
The resistance change of privates, R4Represent the initial resistance of privates.
The embodiment of the present application provides a kind of touch control display apparatus, the touch screen provided including the embodiment of the present application, and touch-control shows
Showing device also includes: alarm unit, and alarm unit, for when the deformation of touch screen reaches preset value, sends cue.?
When being embodied as, alarm unit can be by screen display reminding information reminding user, it is also possible to is by sending prompting sound
Sound, to remind user, can arrange the most flexibly in the specific implementation, do not limits at this.
The touch control display apparatus that the embodiment of the present application provides, also includes alarm unit, and then the shape of touch screen detected
When change reaches certain predetermined value, can be relatively big with prompting user's touching intensity by sending cue, and then can facilitate, in fact
Time ground the touching intensity of user is reminded, it is to avoid the display distortion that touch screen causes owing to receiving bigger touching intensity
Or damage.
In sum, the touch screen deformation detecting method that the embodiment of the present application provides, set in the periphery of touch screen viewing area
It is equipped with the closing coil surrounded by four section leads, according to favour Stone circuit principle, by the most non-conterminous two nodes
Apply voltage, the voltage obtaining two other node can be measured, and then may determine that the 4th formed by pressure sensitivity resistance material
The resistance variations of wire, owing to privates are the integrative-structure being connected with touch screen, and then when determining the 4th resistance deformation,
Can also realize the deformation of touch screen is detected.
Obviously, those skilled in the art can carry out various change and the modification essence without deviating from the application to the application
God and scope.So, if these amendments of the application and modification belong to the scope of the application claim and equivalent technologies thereof
Within, then the application is also intended to comprise these change and modification.
Claims (12)
1. a touch screen deformation detecting method, it is characterised in that described method includes:
Obtain the initial resistance of each wire of the closing coil surrounding touch screen viewing area；Wherein, described closing coil includes
First kind wire that at least one is formed by the resistance material that resistance is constant, and at least one formed by pressure sensitivity resistance material
Equations of The Second Kind wire；
According to the initial resistance of described first kind wire, determine the current resistance of described Equations of The Second Kind wire；
Initial resistance according to described Equations of The Second Kind wire and current resistance, detect the deformation of described touch screen.
2. touch screen deformation detecting method as claimed in claim 1, it is characterised in that described closing coil is by four wire structures
Becoming, described first kind wire includes that the first wire, the second wire and privates, described Equations of The Second Kind wire include privates,
Described first wire and described second wire are connected by primary nodal point, and described second wire and described privates are by second
Node connects, and described privates and described privates are connected by the 3rd node, and described privates and described first are led
Line is connected by fourth node.
3. touch screen deformation detecting method as claimed in claim 2, it is characterised in that initial according to described first kind wire
Resistance, determines the current resistance of described Equations of The Second Kind wire, specifically includes:
Obtain the first voltage applied at described primary nodal point and described 3rd node, and obtain described secondary nodal point and described
The second voltage between fourth node, according to described first wire, described second wire and the initial resistance of described privates,
And, described first voltage and described second voltage, determine the current resistance of described privates；
Or, obtain the tertiary voltage applied at described secondary nodal point and described fourth node, and obtain described primary nodal point
And the 4th voltage that the 3rd between node, according to described first wire, described second wire and the initial electricity of described privates
Resistance, and, described tertiary voltage and described 4th voltage, determine the current resistance of described privates.
4. touch screen deformation detecting method as claimed in claim 3, it is characterised in that according to described first wire, described the
Two wires and the initial resistance of described privates, and, described first voltage and described second voltage, determine that the described 4th leads
The current resistance of line, specifically includes:
The current resistance of described privates is determined by below equation:
Wherein, V2Represent described second voltage, V1Represent described first voltage, R1Represent the initial resistance of described first wire, R2
Represent the initial resistance of described second wire, R3Representing the initial resistance of described privates, R represents working as of described privates
Front resistance；
Or, according to described first wire, described second wire and the initial resistance of described privates, and, the described 3rd
Voltage and described 4th voltage, determine the current resistance of described privates, specifically include:
The current resistance of described privates is determined by below equation:
Wherein, V4Represent described 4th voltage, V3Represent the described tertiary voltage of described applying, R1Represent described first wire
Initial resistance, R2Represent the initial resistance of described second wire, R3Representing the initial resistance of described privates, R represents described
The current resistance of four wires.
5. touch screen deformation detecting method as claimed in claim 2, it is characterised in that initial according to described Equations of The Second Kind wire
Resistance and current resistance, detect the deformation of described touch screen, specifically include:
Initial resistance according to described privates and current resistance, determine the resistance change of described privates；
Initial resistance according to described privates and resistance change, determine the deformation of described privates；
According to the deformation of described privates, detect the deformation of described touch screen.
6. touch screen deformation detecting method as claimed in claim 5, it is characterised in that according to the initial electricity of described privates
Resistance and resistance change, determine the deformation of described privates especially by below equation:
Wherein, ε represents the deformation of described privates, and GF represents the preset property parameter value of described privates, and Δ R represents institute
State the resistance change of privates, R4Represent the initial resistance of described privates.
7. a touch screen deformation detecting device, it is characterised in that described device includes:
First module, for obtaining the initial resistance of each wire of the closing coil surrounding touch screen viewing area；Wherein, described
Closing coil includes at least first kind wire formed by the resistance material that resistance is constant, and at least one by pressure sensitivity electricity
The Equations of The Second Kind wire that resistance material is formed；
Second unit, for the initial resistance according to described first kind wire, determines the current resistance of described Equations of The Second Kind wire；
Unit the 3rd, for the initial resistance according to described Equations of The Second Kind wire and current resistance, detects the deformation of described touch screen.
8. touch screen deformation detecting device as claimed in claim 7, it is characterised in that described closing coil is by four wire structures
Becoming, described first kind wire includes that the first wire, the second wire and privates, described Equations of The Second Kind wire include privates,
Described first wire and described second wire are connected by primary nodal point, and described second wire and described privates are by second
Node connects, and described privates and described privates are connected by the 3rd node, and described privates and described first are led
Line is connected by fourth node.
9. touch screen deformation detecting device as claimed in claim 8, it is characterised in that described second unit, according to described the
The initial resistance of one class wire, determines the current resistance of described Equations of The Second Kind wire, specifically includes:
Obtain the first voltage applied at described primary nodal point and described 3rd node, and obtain described secondary nodal point and described
The second voltage between fourth node, according to described first wire, described second wire and the initial resistance of described privates,
And, described first voltage and described second voltage, determine the current resistance of described privates；
Or, obtain the tertiary voltage applied at described secondary nodal point and described fourth node, and obtain described primary nodal point
And the 4th voltage that the 3rd between node, according to described first wire, described second wire and the initial electricity of described privates
Resistance, and, described tertiary voltage and described 4th voltage, determine the current resistance of described privates.
10. touch screen deformation detecting device as claimed in claim 8, it is characterised in that described Unit the 3rd, according to described the
The initial resistance of two class wires and current resistance, detect the deformation of described touch screen, specifically include:
Initial resistance according to described privates and current resistance, determine the resistance change of described privates；
Initial resistance according to described privates and resistance change, determine the deformation of described privates；
According to the deformation of described privates, detect the deformation of described touch screen.
11. 1 kinds of touch screens, it is characterised in that described touch screen is provided with the first wire, the second wire, privates and the 4th
Wire, wherein, described first wire, described second wire, described privates and described privates are for surrounding described touch
Four section leads of the closing coil of screen viewing area, described first wire and described second wire are connected by primary nodal point, described
Second wire and described privates are connected by secondary nodal point, and described privates and described privates are by the 3rd node
Connecting, described privates and described first wire connected by fourth node, described first wire, described second wire and
Described privates is formed by the resistance material that resistance is constant, and described privates are formed by pressure sensitivity resistance material.
12. 1 kinds of touch control display apparatus, it is characterised in that include touch screen as claimed in claim 11 and alarm unit, institute
State alarm unit for when the deformation of described touch screen reaches preset value, sending cue.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610727911.3A CN106325602A (en) | 2016-08-25 | 2016-08-25 | Touch screen, touch display device and touch screen deformation detection method and device |
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| CN201610727911.3A CN106325602A (en) | 2016-08-25 | 2016-08-25 | Touch screen, touch display device and touch screen deformation detection method and device |
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