CN108874248A - A kind of driving method and relevant apparatus of touch screen - Google Patents
A kind of driving method and relevant apparatus of touch screen Download PDFInfo
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- CN108874248A CN108874248A CN201810517918.1A CN201810517918A CN108874248A CN 108874248 A CN108874248 A CN 108874248A CN 201810517918 A CN201810517918 A CN 201810517918A CN 108874248 A CN108874248 A CN 108874248A
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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
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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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
- G06F3/0412—Digitisers structurally integrated in a display
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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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
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Abstract
The invention discloses a kind of driving method of touch screen and relevant apparatus, picture are shown by controlling touch screen in the display stage in a frame time, so that touch screen realizes menu display function.In the touch-control stage in a frame time, the touch drive signal of the frequency within the most sensitive audio frequency range of human ear is not to each touch control electrode load in touch screen, the sound frequency that the frequency departure human ear of the telescopic variation of film layer in touch screen can be made most sensitive, so that grade reduction of uttering long and high-pitched sounds, improves touch-screen applications reliability.And the capacitance variation by detecting each touch control electrode is to judge position of touch, so that touch screen realizes touch function.
Description
Technical field
The present invention relates to technical field of touch-control display, in particular to the driving method and relevant apparatus of a kind of touch screen.
Background technique
With the rapid development of display technology, touch screen (Touch Panel) has gradually been spread to people's lives.One
As touch screen be provided with touch control electrode, and the touch drive signal by being loaded with multiple pulse signals to touch control electrode, with
Realize touch function.Since touch screen is further typically provided with the film layers such as interlayer dielectric layer, so that touch control electrode and these film layers, example
Such as interlayer dielectric layer, coupled capacitor will form.The touch-control of multiple pulse signals is periodically loaded in touch control electrode in this way
When driving signal, coupled capacitor can continuous stored charge to periodically formed parasitic fields so that being set to touch-control
Other film layers polarization between electrode and interlayer dielectric layer, and generate electrostriction effect.These film layers are by electrostriction effect
Influence, telescopic variation can be generated, touch screen is caused phenomenon of uttering long and high-pitched sounds occur.And the frequency of the telescopic variation closer to human ear most
Sensitive sound frequency (such as 1kHz), then higher grade of uttering long and high-pitched sounds, and leads to the reduction of touch-screen applications reliability.
Summary of the invention
The embodiment of the present invention provides the driving method and relevant apparatus of a kind of touch screen, to solve uttering long and high-pitched sounds for touch screen
The higher problem of grade.
Therefore, the embodiment of the invention provides a kind of driving methods of touch screen, including：
In the touch-control stage in a frame time, each touch control electrode in the touch screen is loaded not according to preset condition
The touch drive signal of frequency within the audio frequency range most sensitive in human ear, by detecting each touch control electrode
Capacitance variation is to judge position of touch；
In the display stage in a frame time, controls the touch screen and show picture.
Correspondingly, the embodiment of the invention also provides a kind of driving devices of touch screen, including：
Touch-control driving unit, in the touch-control stage in a frame time, according to preset condition in the touch screen
The load of each touch control electrode be not at the touch drive signal of frequency within the most sensitive audio frequency range of human ear, pass through inspection
The capacitance variation of each touch control electrode is surveyed to judge position of touch；
Display driver element shows picture in the display stage in a frame time, controlling the touch screen.
Correspondingly, the embodiment of the invention also provides a kind of display devices, including：Touch screen provided in an embodiment of the present invention
Driving device.
Correspondingly, the embodiment of the invention also provides a kind of computer readable storage mediums, are stored thereon with computer journey
The step of sequence, which realizes the driving method of touch screen provided in an embodiment of the present invention when being executed by processor.
Correspondingly, it the embodiment of the invention also provides a kind of computer equipment, including memory, processor and is stored in
On reservoir and the computer program that can run on a processor, the processor realize the embodiment of the present invention when executing described program
The step of driving method of the touch screen of offer.
The present invention has the beneficial effect that：
The driving method and relevant apparatus of touch screen provided in an embodiment of the present invention pass through the display rank in a frame time
Control touch screen shows picture in section, so that touch screen realizes menu display function.It is right in the touch-control stage in a frame time
Each touch control electrode load in touch screen is not at the touch-control driving letter of the frequency within the most sensitive audio frequency range of human ear
Number, the sound frequency that the frequency departure human ear of the telescopic variation of film layer in touch screen can be made most sensitive, so that grade drop of uttering long and high-pitched sounds
It is low, improve touch-screen applications reliability.And by the capacitance variation of each touch control electrode of detection to judge position of touch,
So that touch screen realizes touch function.
Detailed description of the invention
Fig. 1 a is the structural schematic diagram of touch electrode in the related technology；
Fig. 1 b is the schematic cross-sectional view of touch screen in the related technology；
Fig. 1 c is the overlooking structure diagram of touch screen in the related technology；
Fig. 2 is in the related technology to the signal timing diagram of touch control electrode load；
Fig. 3 is the flow chart of driving method provided in an embodiment of the present invention；
Fig. 4 to Figure 13 is respectively the signal timing diagram provided in an embodiment of the present invention to touch control electrode load；
Figure 14 is the structural schematic diagram of driving device provided in an embodiment of the present invention.
Specific embodiment
Currently, touch screen can be divided into according to composed structure：External hanging type touch screen (Add on Mode Touch
Panel), surface-type touch screen (On Cell Touch Panel) and In-cell touch panel (In Cell Touch are covered
Panel).Wherein, since touch control electrode can be embedded in inside display screen by In-cell touch panel, display screen entirety can be thinned
Thickness, therefore have received widespread attention.Also, touch screen can be divided into according to touch-control structure：Self-capacitance touch screen and mutually electricity
Hold touch screen.Wherein, mutual capacitance touchscreens generally comprise：Multiple touch control electrodes and the multiple induced electricities of intersection and insulation set
Pole.In order to make mutual capacitance touchscreens realize touch function, general by touch-control driving IC, (Integrated Circuit is integrated
Circuit) touch drive signal of multiple pulse signals is successively loaded with to touch control electrode, all induction electrodes receive sense simultaneously
Induction signal, so as to obtain entire mutual capacitance touchscreens two-dimensional surface capacitance size, thus according to the variation of capacitance
The position of touch point is judged, to realize touch function.Self-capacitance touch screen generally comprises：Multiple same layers and mutually insulated is set
The touch control electrode set is general to drive IC to load touch control electrode by touch-control in order to make self-capacitance touch screen realize touch function
Touch drive signal with multiple pulse signals, when human body does not touch screen, the capacitor of each touch control electrode is a fixed value,
When human body touch screen, the capacitor of the corresponding touch control electrode of touch location is that fixed value is superimposed body capacitance, and touch-control drives IC
Capacitance variation by detecting each touch control electrode may determine that position of touch, to realize touch function.
In order to reduce preparation process and thickness, as shown in Figure 1a, public (VCOM) electrode can will be used as on touch screen
Transparency conducting layer is divided into several bulks to utilize the touch-control to connect one to one with touch control electrode 110 as touch control electrode 110
Touch control electrode 110 is connect by cabling 120 with touch-control driving IC130.Also, it, can be in order to avoid display is interfered with each other with touch-control
Timesharing driving is carried out to touch screen.As shown in Fig. 2, driver' s timing of the touch screen in a frame time may include：It is alternately arranged
Touch-control stage Touch and display stage Display.Specifically, in display stage Display, touch control electrode 110 is loaded
The public voltage signal of fixed voltage value, so that touch screen realizes display picture.In touch-control stage Touch, to touch control electrode
110 are loaded with the touch drive signal of multiple pulse signals, by detecting the capacitance variation of each touch control electrode 110 to judge
Position of touch, so that touch screen be made to realize touch function.
In the specific implementation, touch screen can be liquid crystal display, or may be organic light-emitting diode (OLED) display screen,
It is not limited thereto.
When touch screen is liquid crystal display, as shown in Figure 1 b, may include the array substrate 100 that is oppositely arranged with it is right
To substrate 200, and it is set to liquid crystal layer between array substrate 100 and opposite substrate 200 (being not shown in Fig. 1 b).Wherein, make
It can be set on opposite substrate 200 for the public electrode of touch control electrode, or the public electrode as touch control electrode can also be with
It is arranged in array substrate.It is illustrated for being arranged on opposite substrate 200 using the public electrode as touch control electrode below.
In practical applications, touch screen further includes multiple pixel PX, in order to carry out display driving, as shown in Fig. 1 b and Fig. 1 c, in array
Thin film transistor (TFT) 140 and pixel electrode 180 in each pixel PX are further typically provided on substrate 100.The thin film transistor (TFT)
140 may include active layer 141, grid 142, source electrode 143 and drain electrode 144.Usual source electrode 143 is using one with drain electrode 144
Layer metal material is prepared.Grid 142 also generallys use metal material and is prepared.Also, it is also set in 142 place layer of grid
Be equipped be used for transmission gated sweep signal grid line gate_m (m be more than or equal to 1 and be less than or equal to M integer, M be touching
It is total to touch the grid line having in screen, in Fig. 1 c by taking M=18 as an example), wherein a grid line gate_m corresponds to one-row pixels PX.In source
143 place layer of pole is additionally provided with the data line (being not shown in Fig. 1 b and Fig. 1 c) for being used for transmission data-signal.Wherein, film crystal
The grid of pipe 140 is electrically connected with corresponding grid line, and source electrode is electrically connected with corresponding data line, and drain electrode is electrically connected with pixel electrode.
Thin film transistor (TFT) 140 is opened under the control for the gated sweep signal that grid line transmits, and the data-signal that data line is transmitted mentions
Supply pixel electrode.And in order to insulate, it is additionally provided with gate insulation layer between layers in active layer 141 and grid 142
150, it is additionally provided with interlayer insulating film 150 between layers in 142 place layer of grid and source electrode 143, deviates from substrate in source electrode 143
The side of substrate 100 is additionally provided with planarization layer 170.
In practical applications, touch control electrode can form parasitic capacitance with film layers such as grid, source electrode, drain electrodes.In this way in touch-control
When electrode periodically loads touch drive signal, coupled capacitor can periodically form parasitic fields.Such as in touch control electrode
When forming parasitic fields between grid, so that the source electrode and drain electrode polarization being set between touch control electrode and grid, to make
It generates electrostriction effect.Source electrode and drain electrode is influenced by electrostriction effect, can generate telescopic variation, is gone out in telescopic variation
After existing certain frequency, touch screen is caused phenomenon of uttering long and high-pitched sounds occur.Also, when the frequency of touch drive signal is higher, telescopic variation
Frequency it is also higher.Since the most sensitive audio frequency range of human ear is generally 1kHz~3kHz, got in the frequency of telescopic variation
When close to the most sensitive sound frequency of human ear, grade of uttering long and high-pitched sounds is then higher, so as to cause the reduction of touch-screen applications reliability.
Based on this, the embodiment of the invention provides a kind of driving method of touch screen and relevant apparatus, can reduce touch
The grade of uttering long and high-pitched sounds of screen.
In order to make the purpose of the present invention, the technical scheme and advantages are more clear, with reference to the accompanying drawing, to the embodiment of the present invention
The driving method of the touch screen of offer and the specific embodiment of relevant apparatus are described in detail.It should be appreciated that following institute
The preferred embodiment of description is only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.And the case where not conflicting
Under, the features in the embodiments and the embodiments of the present application can be combined with each other.In addition, in attached drawing each figure size and shape
The actual proportions of touch screen are not reflected, purpose is schematically illustrate the content of present invention.
The driving method of touch screen provided in an embodiment of the present invention can be applied in above-mentioned each touch screen.Below with
The driving method of touch screen provided in an embodiment of the present invention is applied to be illustrated for self-capacitance touch screen.
As shown in figure 3, the driving method of touch screen provided in an embodiment of the present invention may include steps of：
S301, in the touch-control stage in a frame time, according to preset condition in touch screen each touch control electrode load
It is not at the touch drive signal of the frequency within the most sensitive audio frequency range of human ear, by the electricity for detecting each touch control electrode
Capacitance changes to judge position of touch.
S302, in the display stage in a frame time, control touch screen show picture.
Above-mentioned driving method provided in an embodiment of the present invention, by controlling touch screen in the display stage in a frame time
Picture is shown, so that touch screen realizes menu display function.In the touch-control stage in a frame time, to each touching in touch screen
Control electrode load is not at the touch drive signal of the frequency within the most sensitive audio frequency range of human ear, can make touch screen
The most sensitive sound frequency of the frequency departure human ear of the telescopic variation of middle film layer, so that grade reduction of uttering long and high-pitched sounds, improves touch screen and answer
Use reliability.And the capacitance variation by detecting each touch control electrode is to judge position of touch, so that touch screen realizes touch-control
Function.
Generally the transparency conducting layer for being used as public (VCOM) electrode on touch screen is divided into several blocky using as touch-control
Electrode.In the specific implementation, in the display stage in a frame time, control touch screen shows picture, may include：In a frame
In the display stage in time, to the public voltage signal of touch control electrode loading fixed voltage value, controls touch screen and show picture.
Its specific embodiment can with it is in the prior art identical, therefore not to repeat here.Also, pass through the electricity for detecting each touch control electrode
Capacitance variation with judge position of touch can also with it is in the prior art identical, therefore not to repeat here.
The refreshing frequency of general touch screen may include 60Hz, if having 12 touch-control stages in a frame time at this time
Touch, then the frequency of touch drive signal can be 720Hz；If having 14 touch-control stage Touch in a frame time,
The frequency of touch drive signal can be 840Hz, remaining and so on, therefore not to repeat here.Due to the most sensitive sound of human ear
Frequency range is 1kHz~3kHz, also, frequency is higher causes power consumption higher.Therefore, in the specific implementation, implement in the present invention
In example, the frequency of touch drive signal can be made to be less than the minimum frequency in the most sensitive audio frequency range of human ear.It can
So that the frequency of touch drive signal is less than 1kHz, the grade of uttering long and high-pitched sounds of display screen not only can be reduced, touch-control can also be made to drive
The power consumption of dynamic IC is smaller.
General electrostriction effect is generated along with the touch drive signal periodically occurred, therefore, in the period
Adverse effect caused by electrostriction effect can be reduced after the signal intensity of property.Therefore provided in an embodiment of the present invention above-mentioned
It, can be by following several to each touch control electrode load touch drive signal in touch screen according to preset condition in driving method
Method is realized.
In the specific implementation, in embodiments of the present invention, each touch control electrode in touch screen is loaded according to preset condition
Touch drive signal can specifically include：
In a touch-control stage in a frame time, to the identical touching of touch control electrode load pulses number in same row
Driving signal is controlled, the different touch drive signal of the touch control electrode load pulses number at least two column.Specifically, in touch screen
It may include several block-like driving electrodes arranged in arrays when for self-capacitance touch screen.Specifically, in conjunction with Fig. 1 a institute
Show, it, can be to L_1 in a touch-control stage in a frame time by taking display screen includes 8 column touch control electrode L_1~L_8 as an example
The touch drive signal that column touch control electrode load pulses number is 6 is 5 to L_2~L_8 column touch control electrode load pulses number
Touch drive signal.Alternatively, the touch drive signal that can be 6 to L_4 column touch control electrode load pulses number, to L_1~L_
3, the touch drive signal that L_5~L_8 column touch control electrode load pulses number is 5.Alternatively, can add to L_1 column touch control electrode
The touch drive signal that pulse number is 6 is carried, the touch-control for being 5 to L_2~L_3 column touch control electrode load pulses number drives letter
Number, the touch drive signal for being 4 to L_4~L_8 column touch control electrode load pulses number is not limited thereto.It can make in this way
The periodical touch drive signal that touch screen occurs in a touch-control stage is different, so that film layer is touched at one where source-drain electrode
The telescopic variation that is generated in the control stage by electrostriction effect is different, to make stretching for different zones in film layer where source-drain electrode
Contracting variation has difference, and the vibration of film layer is upset, and then reduces grade of uttering long and high-pitched sounds.
In the specific implementation, at least two column touch control electrodes adjacent in touch screen can be divided into 1 column group.Wherein, may be used
To be divided into 1 column group, i.e., the column group include in touch screen the 1st column touch control electrode to last 1 column touch control electrode.Alternatively, can also be with
It is divided into the quantity column groups such as 2,3,4 ..., is not limited thereto.
Specifically, when column group is not less than 2, the quantity for the touch control electrode for including in the column group of part can be made different, portion
Divide the quantity for the touch control electrode for including in column group identical.For example, including 8 column touch control electrode L_1 with display screen in conjunction with shown in Fig. 1 a
For~L_8, two adjacent column touch control electrode L_1 and L_2 points can be made for the 1st column group, make three adjacent column touch control electrodes
L_3~L_5 points are the 2nd column group, and making three adjacent column touch control electrode L_6~L_8 points is the 3rd column group.Remaining and so on,
Therefore not to repeat here.
It is of course also possible to keep the quantity for the touch control electrode for including in each column group identical.It, can be with for example, in conjunction with shown in Fig. 1 a
Make two adjacent column touch control electrode L_1 and L_2 points for the 1st column group, making two adjacent column touch control electrode L_3 and L_4 points is the 2nd
A column group, making two adjacent column touch control electrode L_5 and L_6 points is the 3rd column group, and makes two adjacent column touch control electrode L_7
It is the 4th column group with L_8 points.Alternatively, four adjacent column touch control electrode L_1~L_4 points can also be made for the 1st column group, make phase
Adjacent four column touch control electrode L_5~L_8 points are the 2nd column group, remaining and so on, therefore not to repeat here.
In the specific implementation, when at least two column touch control electrodes adjacent in touch screen are divided into 1 column group, in the present invention
In a kind of implementation provided, to the identical touch drive signal of touch control electrode load pulses number in same row, at least two column
In the different touch drive signal of touch control electrode load pulses number, can specifically include：It is directed toward along the 1st column touch control electrode
On the direction of last 1 column touch control electrode, to each column touch control electrode touching that successively load pulses number is successively decreased in the column group of part
Driving signal is controlled, successively the incremental touch-control of load pulses number drives letter to each column touch control electrode in rest part column group
Number.
Since the touch control electrode in touch screen can be divided into multiple column groups, when being divided into 2 column groups, along L_1 column touch-control
Electrode is directed toward on the direction F1 of L_8 column touch control electrode, can successively load arteries and veins to each column touch control electrode in wherein 1 column group
Rush the touch drive signal that number is successively decreased, to each column touch control electrode in another 1 column group successively load pulses number be incremented by
Touch drive signal.In conjunction with shown in Fig. 1 a and Fig. 4, L_1~L_4 points can be made for the 1st column group, making L_5~L_8 points is the 2nd
A column group.It can be along the F1 of direction, to the successively load pulses number of each column touch control electrode L_1~L_4 in the 1st column group
The touch drive signal successively decreased, to each column touch control electrode L_5~L_8 in the 2nd column group, successively load pulses number is incremented by
Touch drive signal.Specifically, L_1 and L_8 column the touch control electrode touch-control for being loaded with 6 pulse signals can be driven respectively
Dynamic signal l_1 and l_8, respectively to L_2 and L_7 column touch control electrode be loaded with 5 pulse signals touch drive signal l_2 and
L_7 is loaded with the touch drive signal l_3 and l_6 of 4 pulse signals to L_3 and L_6 column touch control electrode respectively, right respectively
L_4 and L_5 column touch control electrode are loaded with the touch drive signal l_4 and l_5 of 3 pulse signals.Certainly, the touch-control of load drives
The number of the pulse signal of dynamic signal can also be other numerical value, this needs designs determination according to actual application environment, herein
It is not construed as limiting.
Alternatively, 3 column groups can also be divided into, along the direction F1 along L_1 column touch control electrode direction L_8 column touch control electrode,
It can be to each column touch control electrode touch drive signal that successively load pulses number is successively decreased in wherein 1 column group, to another 2
Each column touch control electrode touch drive signal that successively load pulses number is incremented by column group.It, can in conjunction with shown in Fig. 1 a and Fig. 5
It is the 2nd column group so that L_3~L_5 for the 1st column group, to be divided to L_1~L_2 points, and L_6~L_8 is divided for the 3rd column
Group can be loaded with the touch drive signal l_1 of 6 pulse signals to L_1 column touch control electrode, to L_2 along the F1 of direction
Column touch control electrode is loaded with the touch drive signal l_2 of 5 pulse signals, is loaded with 3 pulses to L_3 column touch control electrode
The touch drive signal l_3 of signal is loaded with the touch drive signal l_4 of 4 pulse signals to L_4 column touch control electrode, right
L_5 column touch control electrode is loaded with the touch drive signal l_1 of 5 pulse signals, is loaded with 4 to L_6 column touch control electrode
The touch drive signal l_6 of pulse signal is loaded with the touch drive signal l_ of 5 pulse signals to L_7 column touch control electrode
7, the touch drive signal l_8 of 6 pulse signals is loaded with to L_8 column touch control electrode.It is of course also possible to be divided into 4,5,6 etc.
Numerical value column group, and so on, therefore not to repeat here.
In the specific implementation, when at least two column touch control electrodes adjacent in touch screen are divided into 1 column group, in the present invention
It is different to the identical touch drive signal of touch control electrode load pulses number in same row in another embodiment of offer
The different touch drive signal of touch control electrode load pulses number in column, can specifically include：Refer to along the 1st column touch control electrode
To on the direction of last 1 column touch control electrode, to each column touch control electrode touching that successively load pulses number is successively decreased in each column group
Control driving signal.It specifically, can be the 1st column by L_1~L_4 points in conjunction with shown in Fig. 1 a and Fig. 6 when being divided into 2 column groups
L_5~L_8 points are the 2nd column group by group.6 can be loaded with to L_1 and L_5 column touch control electrode respectively along the F1 of direction
The touch drive signal l_1 and l_5 of a pulse signal, are loaded with 5 pulse signals to L_2 and L_6 column touch control electrode respectively
Touch drive signal l_2 and l_6, respectively to L_3 and L_7 column touch control electrode be loaded with 4 pulse signals touch-control drive
Signal l_3 and l_7 are loaded with the touch drive signal l_4 and l_ of 3 pulse signals to L_4 and L_8 column touch control electrode respectively
8.Certainly, the number of the pulse signal of the touch drive signal of load can also be other numerical value, this is needed according to practical application
Environment designs determination, is not limited thereto.
Alternatively, can be the 1st column group by L_1~L_2 points in conjunction with shown in Fig. 1 a and Fig. 7 when being divided into 3 column groups, it will
L_3~L_5 points are the 2nd column group, and it is the 3rd column group that L_6~L_8, which is divided,.L_1 can be arranged and touched along the F1 of direction
Control electrode is loaded with the touch drive signal l_1 of 6 pulse signals, is loaded with 5 pulse signals to L_2 column touch control electrode
Touch drive signal l_2, the touch drive signal l_3 of 6 pulse signals is loaded with to L_3 column touch control electrode, to L_4 arrange
Touch control electrode is loaded with the touch drive signal l_4 of 5 pulse signals, is loaded with 4 pulse letters to L_5 column touch control electrode
Number touch drive signal l_5, the touch drive signal l_6 of 5 pulse signals is loaded with to L_6 column touch control electrode, to L_7
Column touch control electrode is loaded with the touch drive signal l_7 of 4 pulse signals, is loaded with 3 pulses to L_8 column touch control electrode
The touch drive signal l_8 of signal.Certainly, the number of the pulse signal of the touch drive signal of load can also be other numbers
Value, this needs to design determination according to actual application environment, be not limited thereto.
In the specific implementation, when at least two column touch control electrodes adjacent in touch screen are divided into 1 column group, in the present invention
It is different to the identical touch drive signal of touch control electrode load pulses number in same row in another embodiment provided
The different touch drive signal of touch control electrode load pulses number in column, can specifically include：Refer to along the 1st column touch control electrode
To on the direction of last 1 column touch control electrode, to the successively incremental touching of load pulses number of each column touch control electrode in each column group
Control driving signal.It specifically, can be the 1st column by L_1~L_4 points in conjunction with shown in Fig. 1 a and Fig. 8 when being divided into 2 column groups
L_5~L_8 points are the 2nd column group by group.3 can be loaded with to L_1 and L_5 column touch control electrode respectively along the F1 of direction
The touch drive signal l_1 and l_5 of a pulse signal, are loaded with 4 pulse signals to L_2 and L_6 column touch control electrode respectively
Touch drive signal l_2 and l_6, respectively to L_3 and L_7 column touch control electrode be loaded with 5 pulse signals touch-control drive
Signal l_3 and l_7 are loaded with the touch drive signal l_4 and l_ of 6 pulse signals to L_4 and L_8 column touch control electrode respectively
8.Certainly, the number of the pulse signal of the touch drive signal of load can also be other numerical value, this is needed according to practical application
Environment designs determination, is not limited thereto.
Alternatively, can be the 1st column group by L_1~L_2 points in conjunction with shown in Fig. 1 a and Fig. 9 when being divided into 3 column groups, it will
L_3~L_5 points are the 2nd column group, and it is the 3rd column group that L_6~L_8, which is divided,.L_1 can be arranged and touched along the F1 of direction
Control electrode is loaded with the touch drive signal l_1 of 5 pulse signals, is loaded with 6 pulse signals to L_2 column touch control electrode
Touch drive signal l_2, the touch drive signal l_3 of 4 pulse signals is loaded with to L_3 column touch control electrode, to L_4 arrange
Touch control electrode is loaded with the touch drive signal l_4 of 5 pulse signals, is loaded with 6 pulse letters to L_5 column touch control electrode
Number touch drive signal l_5, the touch drive signal l_6 of 3 pulse signals is loaded with to L_6 column touch control electrode, to L_7
Column touch control electrode is loaded with the touch drive signal l_7 of 4 pulse signals, is loaded with 8 pulses to L_8 column touch control electrode
The touch drive signal l_8 of signal.Certainly, the number of the pulse signal of the touch drive signal of load can also be other numbers
Value, this needs to design determination according to actual application environment, be not limited thereto.
Display and touch-control in general touch screen are timesharing drivings, therefore may include N number of touch-control rank in a frame time
Section, a frame time can also include N+1 display stage at this time.It can be progressively scanned in this way to the pixel in display screen
During be inserted into N number of touch-control stage.Wherein, N can be 2, and a frame time may include 2 touch-control stages at this time, exist in this way
When the refreshing frequency of touch screen is 60Hz, the frequency of touch drive signal can be 120Hz.Certainly, N and or 3,4 etc.
Numerical value, and so on, therefore not to repeat here.
It can be by reducing the touch-control stage periodically occurred to reduce the influence of electrostriction effect.It is being embodied
When, the refreshing frequency of touch screen can be xHz；One frame time may include N number of touch-control stage；Wherein, N is more than or equal to 1
And it is less than or equal toInteger.In embodiments of the present invention, each touch control electrode in touch screen is added according to preset condition
Touch drive signal is carried, can specifically include：
In each touch-control stage in a frame time, the identical touch-control of each touch control electrode load pulses number is driven
Signal；Wherein, the pulse number of touch drive signal is the pulse number of the pre-stored default touch drive signal of touch screen
Y times；Y is the integer more than or equal to 2.Wherein it is possible to make y=1, the pulse number of touch drive signal is touch screen at this time
1 times of the pulse number of pre-stored default touch drive signal.Alternatively, y=2 can also be made, touch drive signal at this time
Pulse number be 2 times of pulse number of the pre-stored default touch drive signal of touch screen.Certainly, in y=3,4,5 etc.
When numerical value, and so on, therefore not to repeat here.
In the specific implementation, default touch drive signal can be the current touch display unit to have dispatched from the factory, for example, hand
The default touch drive signal stored in machine.Also, the pulse number of the default touch drive signal be it is pre-set,
Can with it is in the prior art essentially identical, therefore not to repeat here.
The refreshing frequency of general touch screen may include 60Hz or 120Hz.When its refreshing frequency is 60Hz,If having 16 touch-control stage Touch in a frame time at this time, the frequency of touch drive signal can be
960Hz；If having 14 touch-control stage Touch in a frame time, the frequency of touch drive signal can be 840Hz；If
There are 12 touch-control stage Touch in a frame time, then the frequency of touch drive signal can be 720Hz；That is a frame time
The touch-control stage Touch inside having is fewer, then the frequency of touch drive signal can be smaller.Therefore, in the specific implementation, brushing
When new frequency can be 60Hz, that is, x=60,1≤N≤6 can be made.Further, in order to reduce electrostriction effect, and in order to
Touch accuracy is improved, x=60, N=2, y=3 can be made.For pulse number to default touch drive signal is 2, such as scheme
Shown in 10, when refreshing frequency can be 60Hz, there are 2 touch-control stage Touch in a frame time, in each touch-control stage
The pulse number of touch drive signal is 6.
When refreshing frequency can be 120Hz, i.e. x=120,1≤N≤4 can be made.Further, in order to reduce electroluminescent stretch
Contracting effect, and in order to improve touch accuracy, x=120, N=2, y=3 can be made, i.e., when refreshing frequency can be 120Hz, one
There are 2 touch-control stage Touch, the pulse number of the touch drive signal in each touch-control stage is touch screen in frame time
3 times of the pulse number of pre-stored default touch drive signal.
Display and touch-control in general touch screen are timesharing drivings, therefore when a frame time includes N number of touch-control stage,
One frame time can also include N+1 display stage.It in this way can be in the mistake progressively scanned to the pixel in display screen
N number of touch-control stage is inserted into journey.
Can be by the way that periodic touch drive signal be upset, i.e., the Random Design touch-control stage occurs in a frame time
Time point, to avoid periodically there is touch drive signal.
In the specific implementation, driving method provided in an embodiment of the present invention can also include：Control goes out in a frame time
The time point that the occurrence number identical touch-control stage occurs in adjacent two frame time is different.The touching that will can periodically occur in this way
Control driving signal is upset, so that same time point of the frequency of occurrence identical touch-control stage not in adjacent two frame occurs,
So as to preferably reduce the influence of electrostriction effect.
Specifically, for the frequency of occurrence identical touch-control stage in a frame time, the touch-control stage can be made in the phase
The time point even occurred in the 1st frame time in two frame times is earlier than the time point occurred in the 2nd frame time.
For example, in conjunction with shown in Fig. 1 c and Figure 11, to have 6 touch-control stage Touch and 7 display stages in a frame time
For Display, Frame1 represents the signal loaded in touch control electrode in the first frame time in adjacent two frame time, Frame2
Represent the signal loaded in touch control electrode in the second frame time in adjacent two frame time.Wherein, each in the first frame time
Touch drive signal is loaded to touch control electrode in touch-control stage Touch, touch control electrode is loaded in each display stage Display
The public voltage signal of fixed voltage value；Touch-control is loaded to touch control electrode in each touch-control stage Touch in the second frame time
Driving signal, to the public voltage signal of touch control electrode loading fixed voltage value in each display stage Display.
For the course of work of the touch screen in the first frame time, it is specifically as follows：It is introduced into the 1st display stage
Display inputs public voltage signal to touch control electrode at this time, and scans the 1st row pixel at this time, i.e., into grid line gate_1
Gated sweep signal is inputted, the thin film transistor (TFT) controlled in the 1st row pixel is opened so that data-signal is inputted pixel electrode.Later
Into the 1st touch-control stage Touch, touch drive signal is inputted to touch control electrode at this time, and stop scanning element.
It is defeated to touch control electrode at this time into the 2nd display stage Display after the completion of the 1st touch-control stage Touch
Enter public voltage signal, and successively scan the 2nd~4 row pixel at this time, i.e., is successively inputted into grid line gate_2~gate_4
Gated sweep signal, the thin film transistor (TFT) controlled in the 2nd~4 row pixel are opened so that data-signal is inputted pixel electrode.Later
Into the 2nd touch-control stage Touch, touch drive signal is inputted to touch control electrode at this time, and stop scanning element.
It is defeated to touch control electrode at this time into the 3rd display stage Display after the completion of the 2nd touch-control stage Touch
Enter public voltage signal, and successively scan the 5th row pixel and the 6th row pixel at this time, i.e., successively to grid line gate_5 and gate_
Gated sweep signal is inputted in 6, the thin film transistor (TFT) controlled in the 5th row and the 6th row pixel is opened so that data-signal is inputted picture
Plain electrode.Enter the 3rd touch-control stage Touch later, input touch drive signal to touch control electrode at this time, and stops scanning picture
Element.
It is defeated to touch control electrode at this time into the 4th display stage Display after the completion of the 3rd touch-control stage Touch
Enter public voltage signal, and successively scans the 7th~10 row pixel at this time, i.e., it is successively defeated into grid line gate_7~gate_10
Enter gated sweep signal, the thin film transistor (TFT) controlled in the 7th~10 row pixel is opened so that data-signal is inputted pixel electrode.It
Enter the 4th touch-control stage Touch afterwards, inputs touch drive signal to touch control electrode at this time, and stop scanning element.
It is defeated to touch control electrode at this time into the 5th display stage Display after the completion of the 4th touch-control stage Touch
Enter public voltage signal, and successively scan the 11st~13 row pixel at this time, i.e., successively into grid line gate_11~gate_13
Gated sweep signal is inputted, the thin film transistor (TFT) in the 11st~13 row pixel is controlled and opens so that data-signal input pixel is electric
Pole.Enter the 5th touch-control stage Touch later, inputs touch drive signal to touch control electrode at this time, and stop scanning element.
It is defeated to touch control electrode at this time into the 6th display stage Display after the completion of the 5th touch-control stage Touch
Enter public voltage signal, and successively scan the 14th row pixel and the 15th row pixel at this time, i.e., successively to grid line gate_14 and
Gated sweep signal is inputted in gate_15, the thin film transistor (TFT) controlled in the 14th row and the 15th row pixel is opened to believe data
Number input pixel electrode.Enter the 6th touch-control stage Touch later, inputs touch drive signal to touch control electrode at this time, and stop
Only scanning element.
It is defeated to touch control electrode at this time into the 7th display stage Display after the completion of the 6th touch-control stage Touch
Enter public voltage signal, and successively scan the 16th~18 row pixel at this time, i.e., is inputted into grid line gate_16~gate_18
Gated sweep signal, the thin film transistor (TFT) controlled in the 16th~18 row pixel are opened so that data-signal is inputted pixel electrode.This
Sample can make touch screen complete display and touch function in the first frame time by the above process.
For the course of work of the touch screen in the second frame time, it is specifically as follows：It is introduced into the 1st display stage
Display inputs public voltage signal to touch control electrode at this time, and successively scans the 1st row and the 2nd row pixel at this time, i.e., according to
It is secondary that gated sweep signal is inputted into grid line gate_1 and gate_2, successively control the film crystal in the 1st row and the 2nd row pixel
Pipe is opened so that data-signal is inputted pixel electrode.Enter the 1st touch-control stage Touch later, is inputted at this time to touch control electrode
Touch drive signal, and stop scanning element.
It is defeated to touch control electrode at this time into the 2nd display stage Display after the completion of the 1st touch-control stage Touch
Enter public voltage signal, and successively scan the 3rd~5 row pixel at this time, i.e., is successively inputted into grid line gate_3~gate_5
Gated sweep signal, the thin film transistor (TFT) controlled in the 3rd~5 row pixel are opened so that data-signal is inputted pixel electrode.Later
Into the 2nd touch-control stage Touch, touch drive signal is inputted to touch control electrode at this time, and stop scanning element.
It is defeated to touch control electrode at this time into the 3rd display stage Display after the completion of the 2nd touch-control stage Touch
Enter public voltage signal, and successively scan the 6th~9 row pixel at this time, i.e., is successively inputted into grid line gate_6~gate_9
Gated sweep signal, the thin film transistor (TFT) controlled in the 6th~9 row pixel are opened so that data-signal is inputted pixel electrode.Later
Into the 3rd touch-control stage Touch, touch drive signal is inputted to touch control electrode at this time, and stop scanning element.
It is defeated to touch control electrode at this time into the 4th display stage Display after the completion of the 3rd touch-control stage Touch
Enter public voltage signal, and successively scan the 10th and the 11st row pixel at this time, i.e., successively to grid line gate_10 and gate_11
Middle input gated sweep signal, the thin film transistor (TFT) controlled in the 10th and the 11st row pixel are opened so that data-signal is inputted pixel
Electrode.Enter the 4th touch-control stage Touch later, input touch drive signal to touch control electrode at this time, and stops scanning picture
Element.
It is defeated to touch control electrode at this time into the 5th display stage Display after the completion of the 4th touch-control stage Touch
Enter public voltage signal, and successively scan the 12nd~14 row pixel at this time, i.e., successively into grid line gate_12~gate_14
Gated sweep signal is inputted, the thin film transistor (TFT) in the 12nd~14 row pixel is controlled and opens so that data-signal input pixel is electric
Pole.Enter the 5th touch-control stage Touch later, inputs touch drive signal to touch control electrode at this time, and stop scanning element.
It is defeated to touch control electrode at this time into the 6th display stage Display after the completion of the 5th touch-control stage Touch
Enter public voltage signal, and successively scan the 15th~17 row pixel at this time, i.e., successively into grid line gate_15~gate_17
Gated sweep signal is inputted, the thin film transistor (TFT) in the 15th~17 row pixel is controlled and opens so that data-signal input pixel is electric
Pole.Enter the 6th touch-control stage Touch later, inputs touch drive signal to touch control electrode at this time, and stop scanning element.
It is defeated to touch control electrode at this time into the 7th display stage Display after the completion of the 6th touch-control stage Touch
Enter public voltage signal, and scan the 18th row pixel at this time, i.e., inputs gated sweep signal, control into grid line gate_18
Thin film transistor (TFT) in 18th row pixel is opened so that data-signal is inputted pixel electrode.It can make by the above process in this way
Touch screen completes display and touch function in the second frame time.
Therefore, it can be seen that for the touch-control stage Touch of the 1st appearance in a frame time, in the first frame time
The time point of interior appearance will be earlier than the time point occurred in the second frame time.Similarly, for the 2nd in a frame time, 3,4,5,6
The touch-control stage Touch of secondary appearance, the time point occurred in the first frame time also will be earlier than occurring in the second frame time
Time point.When there is other quantity touch-control stage Touch in a frame time, and so on, therefore not to repeat here.
Alternatively, the touch-control stage can be made to be connected at this for the frequency of occurrence identical touch-control stage in a frame time
The time point occurred in the 1st frame time in two frame times is later than the time point occurred in the 2nd frame time.For example, combining figure
Shown in 12, for having 6 touch-control stage Touch and 7 display stage Display in a frame time, Frame1 represents phase
The signal loaded in touch control electrode in the first frame time in adjacent two frame times, Frame2 represent second in adjacent two frame time
The signal loaded in touch control electrode in frame time.Wherein, to touch control electrode in each touch-control stage Touch in the first frame time
Touch drive signal is loaded, to the public voltage signal of touch control electrode loading fixed voltage value in each display stage Display；
Touch drive signal is loaded to touch control electrode in each touch-control stage Touch in the second frame time, in each display stage
To the public voltage signal of touch control electrode loading fixed voltage value in Display.Touch screen is in the first frame time and the at this time
The principle principle corresponding with Figure 11 of the display and touch function realized in two frame times is essentially identical, is specifically referred to Figure 11
The course of work of corresponding touch screen, therefore not to repeat here.Similarly as can be seen that for the 1st appearance in a frame time
Touch-control stage Touch, the time point occurred in the first frame time will be later than the time point occurred in the second frame time.Together
Reason, for the 2nd in a frame time, 3,4,5,6 times appearance touch-control stage Touch, occur in the first frame time when
Between put also to be later than the second frame time occur time point.There is other quantity touch-control stage Touch in a frame time
When, and so on, therefore not to repeat here.
Certainly, for part in a frame time frequency of occurrence identical touch-control stage, the touch-control stage can be made at this
The time point occurred in the 1st frame time being connected in two frame times is earlier than the time point occurred in the 2nd frame time.For remaining
The frequency of occurrence identical touch-control stage in a frame time can make the touch-control stage be connected at this 1st frame in two frame times
The time point occurred in time is later than the time point occurred in the 2nd frame time.For example, in conjunction with shown in Figure 13, with a frame time
For inside having 6 touch-control stage Touch and 7 display stage Display, Frame1 represents first in adjacent two frame time
The signal loaded in touch control electrode in frame time, Frame2 are represented in the second frame time in adjacent two frame time in touch control electrode
The signal of load.Wherein, touch drive signal is loaded to touch control electrode in each touch-control stage Touch in the first frame time,
To the public voltage signal of touch control electrode loading fixed voltage value in each display stage Display；In the second frame time
Touch drive signal is loaded to touch control electrode in each touch-control stage Touch, touch control electrode is added in each display stage Display
Carry the public voltage signal of fixed voltage value.At this time touch screen in the first frame time and in the second frame time the display realized and
The principle of touch function principle corresponding with Figure 11 is essentially identical, is specifically referred to the worked of the corresponding touch screen of Figure 11
Journey, therefore not to repeat here.Also, similarly as can be seen that for the 1st touch-control stage Touch occurred in a frame time,
The time point occurred in the first frame time will be earlier than the time point occurred in the second frame time.Similarly, in a frame time
The touch-control stage Touch of interior 2nd, 3 appearance, the time point occurred in the first frame time also will be earlier than in the second frame time
The time point of appearance.For the touch-control stage Touch that the 4th occurs in a frame time, occur in the first frame time
Time point will be later than the time point occurred in the second frame time.Similarly, for the touch-control rank of the 5th, 6 appearance in a frame time
Section Touch, the time point occurred in the first frame time will also be later than the time point occurred in the second frame time.In a frame
In have other quantity touch-control stage Touch when, and so on, therefore not to repeat here.
It, in the specific implementation, can be in one in a frame time in order to further decrease the influence of electrostriction effect
Touch-control in the touch-control stage, to the identical touch drive signal of touch control electrode load pulses number in same row, in different lines
The different touch drive signal of electrode load pulses number.Its specific embodiment may refer to above-described embodiment, not make herein
It repeats.
It may include N number of in a frame time in the specific implementation to further decrease the influence of electrostriction effect
The touch-control stage.It wherein, can be to the identical touch drive signal of each touch control electrode load pulses number in each touch-control stage.
Further, the pulse number that can also make touch drive signal is the pre-stored arteries and veins for defaulting touch drive signal of touch screen
Y times for rushing number；Y is the integer more than or equal to 2.Its specific embodiment may refer to above-described embodiment, not go to live in the household of one's in-laws on getting married herein
It states.
It should be noted that the specific value of the pulse number for the touch drive signal mentioned in the embodiment of the present invention is only
The specific value needs of content in order to better illustrate the present invention, pulse number design really according to actual application environment
It is fixed, it is not limited thereto.
Based on the same inventive concept, the embodiment of the invention also provides a kind of driving devices of touch screen, as shown in figure 14,
May include：
Touch-control driving unit 210, in the touch-control stage in a frame time, according to preset condition to touch screen 230
In the load of each touch control electrode be not at the touch drive signal of frequency within the most sensitive audio frequency range of human ear, pass through
The capacitance variation of each touch control electrode is detected to judge position of touch；
Display driver element 220, in the display stage in a frame time, control touch screen 230 to show picture.
Driving device provided in an embodiment of the present invention is shown by controlling touch screen in the display stage in a frame time
Picture, so that touch screen realizes menu display function.In the touch-control stage in a frame time, to each touch-control electricity in touch screen
Pole load is not at the touch drive signal of the frequency within the most sensitive audio frequency range of human ear, can make film in touch screen
The most sensitive sound frequency of the frequency departure human ear of the telescopic variation of layer, so that grade reduction of uttering long and high-pitched sounds, improving touch-screen applications can
By property.And the capacitance variation by detecting each touch control electrode is to judge position of touch, so that touch screen realizes touch function.
In the specific implementation, in embodiments of the present invention, display driver element specifically can be used in a frame time
In the display stage, to the public voltage signal of touch control electrode loading fixed voltage value, controls touch screen and show picture.
In the specific implementation, in embodiments of the present invention, the frequency of touch drive signal is less than the most sensitive sound of human ear
Minimum frequency in frequency range.The grade of uttering long and high-pitched sounds that display screen not only can be reduced can also make the function of touch-control driving IC
It consumes smaller.
In the specific implementation, in embodiments of the present invention, touch-control driving unit can be specifically used in a frame time
In one touch-control stage, to the identical touch drive signal of touch control electrode load pulses number in same row, at least two column
The different touch drive signal of touch control electrode load pulses number.It is right in a touch-control stage in this way in a frame time
The different touch drive signal of touch control electrode load pulses number in different lines, the periodical touch-control that different lines can be made to occur
Driving signal is different, so that the telescopic variation that film layer is generated in a touch-control stage by electrostriction effect is different, thus
Making the telescopic variation of different zones in film layer has difference, the vibration of film layer is upset, and then reduce grade of uttering long and high-pitched sounds.
It in the specific implementation, in embodiments of the present invention, can be by least two column touch control electrodes adjacent in touch screen point
For 1 column group.Wherein it is possible to be divided into 1 column group, i.e., the column group include in touch screen the 1st column touch control electrode to last 1 column touch-control
Electrode.Alternatively, the quantity column groups such as 2,3,4 ... can also be divided into, it is not limited thereto.
In the specific implementation, in embodiments of the present invention, touch-control driving unit specifically can be used for along the 1st column touch-control electricity
Pole is directed toward on the direction of last 1 column touch control electrode, and to each column touch control electrode in the column group of part, successively load pulses number is passed
The touch drive signal subtracted, to each column touch control electrode in rest part column group, successively the incremental touch-control of load pulses number is driven
Dynamic signal.Further, column group can be 2；Touch-control driving unit is specifically used for being directed toward last 1 along the 1st column touch control electrode
On the direction of column touch control electrode, to each column touch control electrode in the 1st column group in 2 column groups, successively load pulses number is passed
The touch drive signal subtracted, to each column touch control electrode in the 2nd column group, successively the incremental touch-control of load pulses number is driven
Signal.In conjunction with shown in Fig. 1 a and Fig. 4, L_1~L_4 points can be made for the 1st column group, making L_5~L_8 points is the 2nd column group.It can
With along the F1 of direction, to each column touch control electrode L_1~L_4 touching that successively load pulses number is successively decreased in the 1st column group
Driving signal is controlled, successively the incremental touch-control of load pulses number drives to each column touch control electrode L_5~L_8 in the 2nd column group
Dynamic signal.Specifically, the touch drive signal l_ of 6 pulse signals can be loaded with to L_1 and L_8 column touch control electrode respectively
1 and l_8 is loaded with the touch drive signal l_2 and l_7 of 5 pulse signals, respectively to L_2 and L_7 column touch control electrode respectively
The touch drive signal l_3 and l_6 of 4 pulse signals are loaded with to L_3 and L_6 column touch control electrode, respectively to L_4 and L_5
Column touch control electrode is loaded with the touch drive signal l_4 and l_5 of 3 pulse signals.Certainly, the touch drive signal of load
The number of pulse signal can also be other numerical value, this needs to design determination according to actual application environment, be not limited thereto.
In the specific implementation, in embodiments of the present invention, touch-control driving unit is specifically used for referring to along the 1st column touch control electrode
To on the direction of last 1 column touch control electrode, to each column touch control electrode touching that successively load pulses number is successively decreased in each column group
Control driving signal.It further, can be the 1st by L_1~L_4 points in conjunction with shown in Fig. 1 a and Fig. 6 when being divided into 2 column groups
L_5~L_8 points are the 2nd column group by column group.Along the F1 of direction L_1 and L_5 column touch control electrode can be loaded have respectively
There are the touch drive signal l_1 and l_5 of 6 pulse signals, 5 pulse letters are loaded with to L_2 and L_6 column touch control electrode respectively
Number touch drive signal l_2 and l_6, respectively to L_3 and L_7 column touch control electrode be loaded with 4 pulse signals touch-control drive
Dynamic signal l_3 and l_7, respectively to L_4 and L_8 column touch control electrode be loaded with 3 pulse signals touch drive signal l_4 and
l_8.Certainly, the number of the pulse signal of the touch drive signal of load can also be other numerical value, this is needed according to actually answering
Determination is designed with environment, is not limited thereto.
In the specific implementation, in embodiments of the present invention, touch-control driving unit can also be specifically used for along the 1st column touch-control
Electrode is directed toward on the direction of last 1 column touch control electrode, and to each column touch control electrode in each column group, successively load pulses number is passed
The touch drive signal of increasing.It further,, can be by L_1~L_4 points in conjunction with shown in Fig. 1 a and Fig. 6 when being divided into 2 column groups
It is the 2nd column group by L_5~L_8 points for the 1st column group.It can be along the F1 of direction, respectively to L_1 and L_5 column touch control electrode
It is loaded with the touch drive signal l_1 and l_5 of 6 pulse signals, 5 are loaded with to L_2 and L_6 column touch control electrode respectively
The touch drive signal l_2 and l_6 of pulse signal, are loaded with 4 pulse signals to L_3 and L_7 column touch control electrode respectively
Touch drive signal l_3 and l_7 are loaded with the touch-control driving letter of 3 pulse signals to L_4 and L_8 column touch control electrode respectively
Number l_4 and l_8.Certainly, the number of the pulse signal of the touch drive signal of load can also be other numerical value, this needs basis
Actual application environment designs determination, is not limited thereto.
In the specific implementation, the refreshing frequency of touch screen can be xHz；One frame time may include N number of touch-control stage；Its
In, N is more than or equal to 1 and to be less than or equal toInteger.In embodiments of the present invention, touch-control driving unit can have
Body is for driving the identical touch-control of each touch control electrode load pulses number and believing in each touch-control stage in a frame time
Number；Wherein, the pulse number of touch drive signal is the y of the pulse number of the pre-stored default touch drive signal of touch screen
Times；Y is the integer more than or equal to 2.
In the specific implementation, in embodiments of the present invention, driving device can also include：Driving unit is controlled, for controlling
It is different to make the time point that the identical touch-control stage of the frequency of occurrence in a frame time occurs in adjacent two frame time.It in this way can be with
The touch drive signal periodically occurred is upset, so that the touch drive signal in the frequency of occurrence identical touch-control stage
Same time point not in adjacent two frame occurs, so as to preferably reduce the influence of electrostriction effect.
In the specific implementation, in embodiments of the present invention, touch-control driving unit, display driver element and control driving are single
Member can use the form of complete hardware embodiment, complete software embodiment or embodiment combining software and hardware aspects.Tool
Body, touch-control driving unit and control driving unit can drive the component in IC for touch-control.Display driver element can be aobvious
Show the component in driving IC.Further, touch-control driving IC and display driving IC can be same driving IC, can be improved in this way
IC integrated level.
Based on the same inventive concept, the embodiment of the invention also provides a kind of display devices, including the embodiment of the present invention to mention
The driving device of the touch screen of confession.The principle that the display device solves the problems, such as is similar to aforementioned driving device, therefore the display fills
The implementation set may refer to the implementation of aforementioned driving device, and repeating place, details are not described herein.
In the specific implementation, display device provided in an embodiment of the present invention further includes touch screen.Wherein, touch screen can wrap
Self-capacitance touch screen or mutual capacitance touchscreens are included, are not limited thereto.
In the specific implementation, display device provided in an embodiment of the present invention can be：Mobile phone, television set, is shown tablet computer
Show any products or components having a display function such as device, laptop, Digital Frame, navigator.For the display device
Other essential component parts be it will be apparent to an ordinarily skilled person in the art that having, this will not be repeated here,
Also it should not be taken as limiting the invention.
Based on the same inventive concept, it the embodiment of the invention also provides a kind of computer readable storage medium, stores thereon
There is computer program, and when program is executed by processor realizes any of the above-described kind of touch screen provided in an embodiment of the present invention
The step of driving method.Specifically, it wherein includes computer usable program code that the present invention, which can be used in one or more,
The computer program implemented in computer-usable storage medium (including but not limited to magnetic disk storage and optical memory etc.) produces
The form of product.
Based on the same inventive concept, the embodiment of the invention also provides a kind of computer equipments, including memory, processor
And the computer program that can be run on a memory and on a processor is stored, processor realizes that the present invention is implemented when executing program
The step of driving method for any of the above-described kind of touch screen that example provides.
The driving method and relevant apparatus of touch screen provided in an embodiment of the present invention pass through the display rank in a frame time
Control touch screen shows picture in section, so that touch screen realizes menu display function.It is right in the touch-control stage in a frame time
Each touch control electrode load in touch screen is not at the touch-control driving letter of the frequency within the most sensitive audio frequency range of human ear
Number, the sound frequency that the frequency departure human ear of the telescopic variation of film layer in touch screen can be made most sensitive, so that grade drop of uttering long and high-pitched sounds
It is low, improve touch-screen applications reliability.And by the capacitance variation of each touch control electrode of detection to judge position of touch, so that
Touch screen realizes touch function.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (22)
1. a kind of driving method of touch screen, which is characterized in that the method includes：
In the touch-control stage in a frame time, each touch control electrode load in the touch screen is not at according to preset condition
The touch drive signal of frequency within the most sensitive audio frequency range of human ear, by the capacitor for detecting each touch control electrode
Value changes to judge position of touch；
In the display stage in a frame time, controls the touch screen and show picture.
2. driving method as described in claim 1, which is characterized in that it is most quick that the frequency of the touch drive signal is less than human ear
Minimum frequency in the audio frequency range of sense.
3. driving method as claimed in claim 2, which is characterized in that according to preset condition to each touch-control in the touch screen
Electrode loads touch drive signal, specifically includes：
In a touch-control stage in a frame time, the identical touch-control of touch control electrode load pulses number in same row is driven
Signal is moved, the different touch drive signal of the touch control electrode load pulses number at least two column.
4. driving method as claimed in claim 3, which is characterized in that by least two column touch-control electricity adjacent in the touch screen
Pole is divided into 1 column group；
The identical touch drive signal of touch control electrode load pulses number in same row, the touch control electrode in different lines
The different touch drive signal of load pulses number, specifically includes：
Along the direction that the 1st column touch control electrode is directed toward last 1 column touch control electrode, to each column touch control electrode in the column group of part
The successively touch drive signal that load pulses number is successively decreased successively loads arteries and veins to each column touch control electrode in rest part column group
Rush the incremental touch drive signal of number.
5. driving method as claimed in claim 4, which is characterized in that the column group is 2；
Each column touch control electrode touch drive signal that successively load pulses number is successively decreased in the column group of part, to remaining
Each column touch control electrode touch drive signal that successively load pulses number is incremented by the column group of part, specifically includes：
Along the direction that the 1st column touch control electrode is directed toward last 1 column touch control electrode, in the 1st column group in 2 column groups
Each column touch control electrode touch drive signal that successively load pulses number is successively decreased, to each column touch-control in the 2nd column group
The electrode touch drive signal that successively load pulses number is incremented by.
6. driving method as claimed in claim 3, which is characterized in that by least two column touch-control electricity adjacent in the touch screen
Pole is divided into 1 column group；
The identical touch drive signal of touch control electrode load pulses number in same row, the touch control electrode in different lines
The different touch drive signal of load pulses number, specifically includes：
Along the direction that the 1st column touch control electrode is directed toward last 1 column touch control electrode, to each column touch-control electricity in each column group
The pole touch drive signal that successively load pulses number is successively decreased.
7. driving method as claimed in claim 3, which is characterized in that by least two column touch-control electricity adjacent in the touch screen
Pole is divided into 1 column group；
The identical touch drive signal of touch control electrode load pulses number in same row, the touch control electrode in different lines
The different touch drive signal of load pulses number, specifically includes：
Along the direction that the 1st column touch control electrode is directed toward last 1 column touch control electrode, to each column touch-control electricity in each column group
The pole touch drive signal that successively load pulses number is incremented by.
8. driving method as claimed in claim 2, which is characterized in that the refreshing frequency of the touch screen is xHz；One frame
Time includes N number of touch-control stage；Wherein, N is more than or equal to 1 and to be less than or equal toInteger；
Touch drive signal is loaded to each touch control electrode in the touch screen according to preset condition, is specifically included：
In each touch-control stage in a frame time, the identical touch-control of each touch control electrode load pulses number is driven
Signal；Wherein, the pulse number of the touch drive signal is the pre-stored default touch drive signal of the touch screen
Y times of pulse number；Y is the integer more than or equal to 2.
9. driving method as claimed in claim 8, which is characterized in that x=60, N=2, y=3.
10. such as the described in any item methods of claim 2-9, which is characterized in that the driving method further includes：Control is in a frame
The time point that the frequency of occurrence identical touch-control stage occurs in adjacent two frame time in time is different.
11. a kind of driving device of touch screen, which is characterized in that including：
Touch-control driving unit, in the touch-control stage in a frame time, according to preset condition to each in the touch screen
Touch control electrode load is not at the touch drive signal of the frequency within the most sensitive audio frequency range of human ear, each by detecting
The capacitance variation of the touch control electrode is to judge position of touch；
Display driver element shows picture in the display stage in a frame time, controlling the touch screen.
12. driving device as claimed in claim 11, which is characterized in that the frequency of the touch drive signal is less than human ear most
Minimum frequency in sensitive audio frequency range.
13. driving device as claimed in claim 12, which is characterized in that the touch-control driving unit is specifically used in a frame
In an interior touch-control stage, to the identical touch drive signal of touch control electrode load pulses number in same row, at least
The different touch drive signal of touch control electrode load pulses number in two column.
14. driving device as claimed in claim 13, which is characterized in that by least two column touch-controls adjacent in the touch screen
Electrode is divided into 1 column group；The touch-control driving unit is specifically used for being directed toward last 1 column touch control electrode along the 1st column touch control electrode
Direction on, to each column touch control electrode touch drive signal that successively load pulses number is successively decreased in the column group of part, to it
Remaining part divides the successively incremental touch drive signal of load pulses number of each column touch control electrode in column group.
15. driving device as claimed in claim 14, which is characterized in that the column group is 2；The touch-control driving unit tool
Body is used in the direction for being directed toward last 1 column touch control electrode along the 1st column touch control electrode, to the 1st column group in 2 column groups
In each column touch control electrode touch drive signal that successively load pulses number is successively decreased, in the 2nd column group each column touch
Control the electrode successively incremental touch drive signal of load pulses number.
16. driving device as claimed in claim 13, which is characterized in that by least two column touch-controls adjacent in the touch screen
Electrode is divided into 1 column group；The touch-control driving unit is specifically used for being directed toward last 1 column touch control electrode along the 1st column touch control electrode
Direction on, to each column touch control electrode touch drive signal that successively load pulses number is successively decreased in each column group.
17. driving device as claimed in claim 13, which is characterized in that by least two column touch-controls adjacent in the touch screen
Electrode is divided into 1 column group；The touch-control driving unit is specifically used for being directed toward last 1 column touch control electrode along the 1st column touch control electrode
Direction on, to the successively incremental touch drive signal of load pulses number of each column touch control electrode in each column group.
18. driving device as claimed in claim 12, which is characterized in that the refreshing frequency of the touch screen is xHz；Described one
Frame time includes N number of touch-control stage；Wherein, N is more than or equal to 1 and to be less than or equal toInteger；
The touch-control driving unit was specifically used in each touch-control stage in a frame time, added to each touch control electrode
Carry the identical touch drive signal of pulse number；Wherein, the pulse number of the touch drive signal is that the touch screen is preparatory
Y times of the pulse number of the default touch drive signal of storage；Y is the integer more than or equal to 2.
19. such as the described in any item driving devices of claim 12-18, which is characterized in that the driving device further includes：Control
Driving unit, for controlling the time that the identical touch-control stage of the frequency of occurrence in a frame time occurs in adjacent two frame time
Point is different.
20. a kind of display device, which is characterized in that including：As the driving of the described in any item touch screens of claim 11-19 fills
It sets.
21. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is by processor
The step of driving method of the described in any item touch screens of claim 1-10 is realized when execution.
22. a kind of computer equipment including memory, processor and stores the meter that can be run on a memory and on a processor
Calculation machine program, which is characterized in that the processor realizes the described in any item touches of claim 1-10 when executing described program
The step of driving method of screen.
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| CN201810517918.1A CN108874248B (en) | 2018-05-25 | 2018-05-25 | Driving method and related device of touch screen |
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| CN201810517918.1A CN108874248B (en) | 2018-05-25 | 2018-05-25 | Driving method and related device of touch screen |
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| CN108874248B (en) | 2021-09-17 |
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