CN104020870B - Touch control detecting method and its device - Google Patents
Touch control detecting method and its device Download PDFInfo
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- CN104020870B CN104020870B CN201310064585.9A CN201310064585A CN104020870B CN 104020870 B CN104020870 B CN 104020870B CN 201310064585 A CN201310064585 A CN 201310064585A CN 104020870 B CN104020870 B CN 104020870B
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Abstract
The present invention proposes a kind of touch control detecting method and its device, and for detecting the touch point on a display, this method is included：There is provided one and show signal, so that the display possesses at least two sections discontinuous vertical blanking times according to the display signal in each picture display time；And at least two sections vertical blanking times, a touch control detection is performed respectively.Touch control detecting method provided by the present invention can reach carries out multiple touch control detection in a picture display time (frame time).
Description
Technical field
The present invention is the method and its device on a kind of touch control detection, during especially a kind of display available for a display
Blank time touch control detecting method and its device.
Background technology
The display of liquid crystal panel, generally produces clock signal by time schedule controller (timing controller, TCON)
Come control gate drive circuit (gate driver) and source electrode drive circuit (source driver) to carry out picture driving and
Complete the display of whole picture.Source electrode drive circuit is mainly responsible for providing each pixel (pixel) data to display, also
It is to provide the voltage signal of the different gray scales of correspondence, gate driving circuit then controls multiple pixels of same row simultaneously to arrange for unit
Receive the data that source electrode drive circuit is provided.Specifically, time schedule controller control source electrode drive circuit, sequentially by picture first
Row, secondary series, the 3rd arrange ..., and the pixel data to display of Nth column is converted into corresponding voltage in its output end, and
By time sequence controller grid pole drive circuit, the first row, secondary series, the picture of the 3rd ... Nth column of picture are sequentially made
Element receives the voltage that source electrode drive circuit is exported respectively.
When display arranges in pairs or groups touch controllable function, it is known that vertical blanking time when being shown more than technology using display is by touch-control
Detect that circuit performs acquisition data, computing and the function of transmitting touch point information.So-called blank time, i.e., all grids drive
Dynamic circuit and source electrode drive circuit do not carry out data updating within this time for any pixel, therefore in blank
Between the situation of noise jamming can be minimum on wainscot.Before display is started to next picture after completing the display of a picture
One section of vertical blanking time (vertical blanking time) is had, and stops receiving source drive electricity in each row pixel
Before starting to receive the data that source electrode drive circuit is provided to next column pixel after the data that road is provided, then there is one section of horizontal blank
Time (horizontal blanking time).
Relative to vertical blanking time, because the horizontal blank time falls short of, it is not enough to complete complete touch control detection, because
Touch control detection is not carried out using the horizontal blank time known to this, although and vertical blanking time completes complete touch-control enough
Detection, but due to only when having one section of vertical blank before starting to update to next picture after a frame updating is completed
Between, therefore can only carry out acquisition data, computing and transmission touch point information this period for touch control detection circuit, and then
Make the number of times of touch control detection and the opportunity of touch control detection with it is limited, such as at a picture display time (frame time)
It is interior, it is known that technology is only capable of after the completion of frame updating carrying out a touch control detection.For this limited case, the art is still
There is the demand further improved.
The content of the invention
In view of above-mentioned, a purpose of the invention is the method and its device for providing a kind of touch control detection, can be in a picture
Multiple touch control detection is carried out in the display time, to improve problem of the prior art.
One embodiment of the invention proposes a kind of touch control detecting method, for detecting the touch point on a display, this method
Comprising：There is provided one and show signal, so that the display possesses at least two according to the display signal in each picture display time
The discontinuous vertical blanking time of section；And at least two sections vertical blanking times, a touch control detection is performed respectively.
Another embodiment of the present invention proposes a kind of touch control detecting method, for detecting the touch point on a display, and it is wrapped
Include：In in the first level blank time that a picture is shown, touch control detection is carried out to one first block of the display；And
In in the one second horizontal blank time that the picture is shown, touch control detection is carried out to one second block of the display.
Another embodiment of the present invention proposes a kind of touch control detection device, for detecting the touch point on a display, and it is wrapped
Contain：Time schedule controller there is provided one display signal so that the display according to the display signal in each picture display time
Possess at least two sections discontinuous vertical blanking times；And a touch control detection circuit, at least two sections vertical blanking times
It is interior, touch point detection is performed respectively.
Another embodiment of the present invention proposes a kind of touch control detection device, for detecting the touch point on a display, and it is wrapped
Include：Time schedule controller, to provide a detection initial signal；And a touch control detection circuit, according to the detection initial signal,
In in the first level blank time that a picture is shown, touch control detection, Yi Jiyu are carried out to one first block of the display
In the one second horizontal blank time that the picture is shown, touch control detection is carried out to one second block of the display.
Brief description of the drawings
For the above objects, features and advantages of the present invention can be become apparent, below in conjunction with tool of the accompanying drawing to the present invention
Body embodiment elaborates, wherein：
Fig. 1 is the block diagram of an embodiment of the touch control detection device of the present invention.
Fig. 2 is the block diagram of an embodiment of time schedule controller in touch control detection device of the invention.
Fig. 3 is the block diagram of an embodiment of touch control detection circuit in touch control detection device of the invention.
Fig. 4 is the timing diagram of display renewal display picture in one embodiment of the invention.
Fig. 5 is the block diagram of another embodiment of the touch control detection device of the present invention.
Fig. 6 is the timing diagram of display renewal display picture in another embodiment of the present invention.
Main element symbol description：
100th, 500 touch control detection device
120th, 520 time schedule controller
122nd, 522 data process circuit
124th, 524 drive signal generation circuit
126 controllers
128 memories
140th, 540 touch control detection circuit
142 detection units
144 storage elements
146 computing units
148 output units
160th, 560 display
T1 ~ T28 periods
S shows signal
D image datas
T synchronizing signals
P pixel informations
C time control signals
A detects initial signal
RN~RN：Row pixel
Embodiment
The technical terms of this specification refers to the idiom of the art, and such as this specification has to part term to be added
To illustrate or define, the explanation system of the part term is defined by the explanation of this specification or definition.In addition, be embodied as it is possible
Under the premise of, the relativeness between object or event described by this specification, connotation can include direct or indirect relation, institute
Meaning " indirect " means between object still there is the presence of intermediate or physical space, or still has intermediate event or time interval between self-explanatory characters' part
Presence.Furthermore, herein below system is on a kind of display methods and its device, for the technology or principle that the field is common, if
The technical characteristic of the present invention it is not related to, by it will not go into details.In addition, it is illustrated that the shape of middle element, size, the step of ratio and flow
It is only to illustrate that rapid order, which is waited, supply the art skilled artisans will appreciate that the present invention is used, non-to implementation model of the invention
Enclose and be any limitation as.
In addition, each embodiment of following description has one or more technical characteristics respectively, so this is not meant to
All technical characteristics in any embodiment must be implemented simultaneously using present inventor, or be only capable of being performed separately in not be the same as Example
One or all technical characteristic.In other words, be embodied as it is possible under the premise of, the art those of ordinary skill can be according to
According to the disclosure content of the present invention, and regarding design specification or implementation demand, optionally implement in any embodiment partly or entirely
Technical characteristic, or optionally implement the combination of all or part of technical characteristic in multiple embodiments, whereby increase this
Elasticity when invention is implemented.
A kind of method of the presently disclosed content comprising touch control detection and its device, the method and its dress of the touch control detection
Put and can be applied to detect the touch point on a display, enable a touch control detection circuit according to demand and efficiently capture money
Material, computing and transmission touch point information, such as, according to the present invention, can enter in a picture display time (frame time)
The multiple touch control detection of row, and be not limited to that after the completion of frame updating touch control detection could be carried out.Right this not limitation of the present invention,
Only illustrated for the present invention and the art personage understands the present invention and is used.In addition, be embodied as it is possible under the premise of, this
Technical field those of ordinary skill can select equivalent element or step to realize the present invention according to present disclosure content,
That is, the implementation of the present invention is not limited to presently disclosed embodiment.Further, since the touch control detection device of the present invention
Comprising part or all of element it is indivedual for can be known element, therefore in the abundant disclosure for not influenceing the device to invent
And on the premise of can implementing according to this, the details of the Individual elements for realizing device invention is illustrated below will give memorandum.Again
Person, touch control detecting method of the invention can be realized by the touch control detection device of the present invention, may also be examined through other touch-controls
Survey device to realize, similarly, on the premise of not influenceing the abundant disclosure of this method invention and can implement according to this, illustrate below
The details of hardware unit for performing this method invention will give memorandum.
Referring to Fig. 1, it is the block diagram of an embodiment of the touch control detection device of the present invention.Touch control detection device 100
System is applied to the touch point on one display of detection, and it includes time schedule controller 120 and touch control detection circuit 140.Sequential control
Device 120 processed is to provide a display signal s, so that display 160 has according to display signal s in each picture display time
Lack two sections of discontinuous vertical blanking times to the utmost.Touch control detection circuit 140 is used in each vertical blanking time, holds respectively
The touch control detection of row one.
Referring to Fig. 2, it is the block diagram of an embodiment of the time schedule controller of the touch control detection device of the present invention.Sequential
Controller 120 includes a data process circuit 122, a drive signal generation circuit 124, a controller 126 and a storage
Device 128.Specifically, data process circuit 122 is to receive an image data d, and the demand production of the panel according to display 160
Raw multiple pixel information p, such as panel of foundation display 160 pixel arrangements, are suitably turned to image data d
Change, and produce these pixel informations p.Drive signal generation circuit 124 is to receive a synchronizing signal t, and when producing multiple according to this
Between control signal c.These pixel informations p and these time control signals c systems constitute the display letter that time schedule controller 120 is exported
Number s, the output display signal s of time schedule controller 120 to display 160 panel drive circuit (not illustrating) is shown so as to control
Device 160.
Controller 126 is coupled to data process circuit 122 and drive signal generation circuit 124, at control data
Manage circuit 122 and delay disposal is carried out at least a portion of the data of the pixel of each image frame in image data d, and correspondingly
Ground controls drive signal generation circuit 124, has at least two sections discontinuous vertical blanks to be implemented in a picture display time
The white time.Memory 128 is coupled to data process circuit 122, and when data process circuit 122 carries out delay disposal, being need to
The data of the pixel of delay is temporarily stored in memory 128.In one embodiment, input to the image of data process circuit 122 is provided
Material d systems include the data of multiple image frames, and each image frame system has N row pixels, and N is positive integer, and input to driving
The synchronizing signal of signal generating circuit 124 then includes the vertical synchronizing signal of each image frame of correspondence, and each image of correspondence
The horizontal-drive signal of each row pixel information in picture, due to the data of each image frame tie up in vertical synchronizing signal one
Continuously inputted by column to data process circuit 122 in during corresponding vertical enable, in order to be implemented in a picture display time
Inside there are two sections of discontinuous vertical blanking times, and wherein one section vertical blanking time is updated a shadow between display 160
As between picture m column pixel and M+1 row pixels, controller 126 ties up to data process circuit and receives each image frame
During the data of M+1 row pixels, the data that control data process circuit 122 starts to arrange M+1 to the pixel of Nth column is sequentially write
Enter in memory 128, after a special time to be delayed, data process circuit 122 sequentially reads M+1 from memory 128 again
Arrange to the data of the pixel of Nth column, handle and export to display 160.And the length system of the special time is according to required
Vertical blanking time is determined.In order that the pixel information after delayed can be correctly shown shown by device 160, controller
126 be accordingly control drive signal generation circuit 124, with produce correspondence it is delayed after pixel information time control signal
C, enables the panel drive circuit of display 160 that pixel information and driving panel after delay is correctly received.In implementation, storage
Device 128 can also be not included in time schedule controller 120.In addition, touch control detection circuit 140 is coupled to drive signal generation circuit
124, drive signal generation circuit 124 can produce a detection initial signal a, to control touch control detection circuit 140 in foregoing
Touch control detection is carried out to the panel of display 160 in vertical blanking time.
Referring to Fig. 3, it is the side of an embodiment of touch control detection circuit 140 in touch control detection device 100 of the invention
Block figure.Touch control detection circuit 140 is the detection initial signal a sent out according to drive signal generation circuit 124, in each picture
A touch control detection is performed respectively at least two sections discontinuous vertical blanking times that the display time is included, and it includes a detection
Unit 142, a storage element 144 and a computing unit 146.Detection unit 142 is coupled to drive signal generation circuit 124,
Detection initial signal a is received, and carries out touch control detection to obtain a touch control detection result according to detection initial signal a；Calculate single
Member 146 is coupled to detection unit 142, is calculated to produce a touch point information for foregoing touch control detection result；Storage is single
Member 144 is coupled to computing unit 146, to store the touch point information.Touch control detection circuit 140 more can be single comprising an output
Member 148, is coupled to storage element 144, and the touch point information for storing storage element 144 in special time is sent out answers for specific
Used with program.In implementation, detection unit 142, which is obtained, can be temporarily stored into storage element 144 after touch control detection result, and calculate
Unit 146 is produced and directly can also sent out after touch point information by output unit 148 so that application-specific is used without storing up
It is stored in storage element 144.
In addition to above-mentioned touch control detection device 100, the present invention separately discloses a kind of touch-control applied to touch control detection device 100
Detection method.Referring to Fig. 4, it is the timing diagram of display renewal display picture in one embodiment of the invention.Work as display
During the pixel information of 160 one display pictures of renewal, first row pixel (R1), secondary series pixel (R2), the 3rd row pixel (R3)……
M column pixel (RM), M+1 row pixels (RM+1) ... Nth column pixel (RN) respectively at period T1, period T3, period T5 ...
Period T6, T9 ... period, T10 period are updated according to display signal s, and period T13 then updates the first of next display picture
Row pixel (R1), therefore period T1 to period T12 is a picture display time, wherein period T2, period period T4 ...
T7 ... periods T11 is the horizontal blank time, and period T8 and period T12 are then vertical blanking time.For make display 160 according to
According to the display signal possess in each picture display time at least two sections discontinuous vertical blanking times (i.e. period T8 and when
Section T12), touch control detection circuit 140 is performed a touch control detection respectively in these vertical blanking times.Please refer to
Fig. 1, when updating a display picture, first in period T1, the output display signal s of time schedule controller 120 to display 160 panel
Drive circuit, the first row pixel (R so as to controlling display 1601) be updated；Then in period T3, time schedule controller 120
Output display signal is to the panel drive circuit of display 160, the secondary series pixel (R so as to controlling display 1602) carry out more
Newly；Then in period T5, the panel drive circuit of the output display signal of time schedule controller 120 to display 160 is aobvious so as to control
Show the 3rd row pixel (R of device 1603) be updated.The rest may be inferred, and abovementioned steps are repeated to period T6, time schedule controller
120 output display signals are to the panel drive circuit of display 160, the m column pixel (R so as to controlling display 160M) carry out
Update, then, in order that period T8 be a vertical blanking time so that touch control detection circuit 140 can carry out touch control detection, control
When device 126 processed receives the data of the M+1 row pixels of image frame in data process circuit 122, the data process circuit is controlled
122 data for starting to arrange M+1 to Nth column pixel are sequentially write in memory 128, after a special time to be delayed, data
Process circuit 122, which sequentially from memory 128 reads M+1 again and arranged to the data of the pixel of Nth column, to be handled and is exported.And
The length of the special time is period T8 length.In order that the pixel information after delayed can correctly be shown device and show
Show, controller 126 be accordingly control drive signal generation circuit 124, with produce correspondence it is delayed after pixel information when
Between control signal c, enable display 160 drive circuit be correctly received delay after pixel information and driving panel.When
Section T9 is between period T10, and time schedule controller 120 exports the pixel information after delay to the panel drive circuit of display 160,
Display picture M+1 row pixels (R is updated so as to control display 160M+1) to Nth column pixel (RN).Due to period T1 to period
T12 is a picture display time, therefore when display 160 has updated Nth column pixel (R in period T10N), and pass through horizontal blank
After white time T11, period T12 is another vertical blanking time, and is available for touch control detection circuit 140 to carry out touch control detection.
In another embodiment, through constructed means, then there can be three sections in a picture display time and not connect
Continuous vertical blanking time, the touch control detection for enabling touch control detection circuit 140 to carry out three times in a picture display time.Example
Such as when display 160 updates the pixel information of a display picture, first from first row pixel (R1) it is updated to m column pixel
(RM), when then controller 126 receives the data of the M+1 row pixels of image frame in data process circuit 122, control the money
The data that material process circuit 122 starts to arrange M+1 to the pixel of Nth column is sequentially write in memory 128, and to be delayed one is specific
After time, such as time delay Tx, that is, make the length of first paragraph vertical blanking time be Tx, then data process circuit
122 again by M+1 row pixels (RM+1) start sequentially to read the data of previously written pixel from memory 128, after processing simultaneously
Exported, completed from M+1 row pixels (RM+1) to the renewal of K row pixel (not illustrating), K is just whole less than N, more than M
Number, when data process circuit 122 receives the data of K+1 row pixels of image frame, controller 126 is controlled at the data
Reason circuit 122 starts to arrange K+1 postpones a special time pixel information to Nth column more, such as many time delay Tx, so that
It is also Tx to obtain updating K row pixel to second segment vertical blanking time, its length is produced between K+1 row pixels, is then provided
Material process circuit 122 sequentially reads previously written pixel by K+1 row pixel (not illustrating) from memory 128 again
Data, and export after being handled according to the demand of the panel of display 160 data of these pixels, complete from K+1 row
Pixel (not illustrating) is to Nth column pixel (RN) renewal, it is notable that M+1 row pixels (RM+1) to K row pixel (not
Illustrate) actually all it is delayed by the delay time Tx, and K+1 row pixel (not illustrating) is to Nth column pixel (RN) actually all
It is delayed by 2 times of time delay Tx.Foregoing first paragraph, second segment vertical blanking time, add and have updated Nth column pixel (RN) it
The 3rd section of vertical blanking time T12 arrived afterwards before carrying out next frame updating, you can enable touch control detection circuit 140 to exist
The interior touch control detection for carrying out three times of one picture display time.In another embodiment, through constructed means, then it can be drawn one
Face shows the touch control detection for having more than three sections discontinuous vertical blanking times in the time and carrying out more than three times, in this no longer
Repeat.
Referring to Fig. 5, it is the block diagram of another embodiment of the touch control detection device of the present invention.Touch control detection device
500 be the touch point being applied on one display of detection, and it includes time schedule controller 520 and touch control detection circuit 540.Sequential
Controller 520 is to provide a display signal, so that display 560 is according to the display signal update picture, and sequential control
Device 520 processed is to provide a detection initial signal a, so that two sections in a picture display time of touch control detection circuit 540
In the horizontal blank time, touch control detection is carried out for the different block of display respectively.
Time schedule controller 520 includes a data process circuit 522 and a drive signal generation circuit 524.Come in detail
Say, the basic function of data process circuit 522 is similar to data process circuit 122, it is to receive an image data d, and foundation
The demand of the panel of display 560 produces multiple pixel information p.The basic function of drive signal generation circuit 524, which is similar to, drives
Dynamic signal generating circuit 124, it is to receive a synchronizing signal t, and produces multiple time control signal c according to this.These pixels are provided
Material p and these time control signals c systems constitute the display signal that time schedule controller 520 is exported, and the output of time schedule controller 520 is aobvious
Show signal to the panel drive circuit of display 560, so as to control display 560.
In order to realize in two horizontal blank times for making touch control detection circuit 540 in a picture display time, respectively
Touch control detection is carried out for the different block of display, drive signal generation circuit 524 is to detect initial signal a by offer one
To touch control detection circuit 540, the first level blank time for making touch control detection circuit 540 be shown respectively at a picture, for
One first block of display 560 carries out touch control detection to obtain one first block touch control detection result, and in one second water
Flat blank time, touch control detection is carried out to obtain one second block touch control detection result for one second block of display 560.
Please refer to Fig. 3, touch control detection circuit 540 is similar to touch control detection circuit 140 in the touch control detection device 100 of the present invention.
Touch control detection circuit 540 is coupled to drive signal generation circuit 524, receives detection initial signal a, and according to detection initial signal
A obtains the first block touch control detection result in first level blank time, and obtains the secondth area in the second horizontal blank time
Block touch control detection result, in one embodiment, it is assumed that display 560 is divided into 10 blocks, then can be in 10 horizontal blanks
The interval touch control detection result for obtaining 10 blocks respectively, and it is directed to the touch control detection result of foregoing 10 blocks in special time
Calculated to produce a touch point information, in the present embodiment, the special time was meant respectively at 10 horizontal blank times
Obtain the time after the touch control detection result of 10 blocks.Touch control detection circuit 540 can send out touch point information for spy
Determine application program utilization, touch point information can also temporarily be stored.In another embodiment, through constructed means,
The multiple horizontal blank intervals that can be then included in a picture display time repeat abovementioned steps, make touch control detection circuit
540 can carry out more touch control detection in a picture display time, such as by aforementioned techniques means, it is assumed that display
560 have X row pixels, and X is positive integer, can within the display picture time if display 560 is divided into 10 blocks
To carry out the touch control detection of Y times, Y is no more than X/10 maximum positive integer.In addition, can also coordinate the length of horizontal blank time
It is short, adjust each block size, that is to say, that display area can be divided into more than 10 or less than 10 blocks, and respectively
In carrying out touch control detection in the different horizontal blank time.
The present invention separately discloses a kind of touch control detecting method applied to touch control detection device 500.Referring to Fig. 6, it is
Display updates the timing diagram of display picture in another embodiment of the present invention.When display 560 updates the picture of a display picture
During plain data, first row pixel (R1), secondary series pixel (R2), the 3rd row pixel (R3) ... Nth column pixel (RN) respectively in
Period T21, period T23, T25 ... period, T27 period according to show signal be updated, wherein period T22, period T24, when
Section T26 ... periods T28 are the horizontal blank time.Please refer to Fig. 5, when updating a display picture, first in period T21,
The output display signal of time schedule controller 520 is to the panel drive circuit of display 560, the first row so as to controlling display 560
Pixel (R1) be updated；Then in period T23, the panel driving of the output display signal of time schedule controller 520 to display 560
Circuit, the secondary series pixel (R so as to controlling display 5602) be updated；Then in period T25, time schedule controller 520 is defeated
Go out to display signal to the panel drive circuit of display 560, the 3rd row pixel (R so as to controlling display 5603) carry out more
Newly；The rest may be inferred, and abovementioned steps are repeated to period T27, the output display signal of time schedule controller 420 to display 560
Panel drive circuit, the Nth column pixel (R so as to controlling display 560N) be updated；To make touch control detection circuit 540 one
In two horizontal blank times in picture display time, touch control detection, driving are carried out for the different block of display respectively
Signal generating circuit 524 be by provide one detect initial signal a to touch control detection circuit 540, make touch control detection circuit 540 in
Period T22 and period T24, respectively one first block for display 560 carry out touch control detection to obtain one first block
Touch control detection result, and examined for the one second block progress touch control detection of display 560 with obtaining one second block touch-control
Survey result.
Touch control detection circuit 540 is coupled to drive signal generation circuit 524, receives detection initial signal, and according to detection
Initial signal obtains the first block touch control detection result in period T22, and obtains the second block touch control detection knot in period T24
Really；The rest may be inferred, in one embodiment, it is assumed that display 560 is divided into 10 blocks, then can be in 10 horizontal blank intervals
The touch control detection result of 10 blocks is obtained respectively, and is carried out in special time for the touch control detection result of foregoing 10 blocks
Calculate to produce a touch point information, in the present embodiment, the special time means and obtained respectively at 10 horizontal blank times
Time after the touch control detection result of 10 blocks.Touch control detection circuit 540 the touch point information of storage can be sent out for
Application-specific is used, and can also temporarily be stored touch point information.In another embodiment, through constructed hand
Section, then the multiple horizontal blank intervals that can be included in a picture display time repeat abovementioned steps, make touch control detection
Circuit 540 can carry out more touch control detection in a picture display time, such as by aforementioned techniques means, it is assumed that aobvious
Show that device 560 has X row pixels, X is positive integer, if display 560 is divided into 10 blocks, within the display picture time
The touch control detection of Y times will can be carried out, Y is no more than X/10 maximum positive integer.In addition, can also coordinate the horizontal blank time
Length, adjusts each block size, that is to say, that can be divided into the display area more than 10 or less than 10 blocks, and
Respectively at carrying out touch control detection in the different horizontal blank time.
Although the present invention is disclosed as above with preferred embodiment, so it is not limited to the present invention, any this area skill
Art personnel, without departing from the spirit and scope of the present invention, when a little modification can be made and perfect, therefore the protection model of the present invention
Enclose when by being defined that claims are defined.
Claims (6)
1. a kind of touch control detecting method, for detecting the touch point on a display, this method is included：
There is provided one and show signal, so that the display possesses at least two sections according to the display signal in each picture display time
Discontinuous vertical blanking time；And
In at least two sections vertical blanking times, a touch control detection is performed respectively；
Wherein, the display includes N row pixels, and one first vertical blanking time at least two sections vertical blanking times is
Updated positioned at the display between m column pixel and M+1 row pixels, and N, M are positive integer, and M is less than N；This method is also wrapped
Include：
Produce one and detect initial signal, make a touch control detection circuit in performing the touch control detection in first vertical blanking time；
In after first vertical blanking time, the result for the touch control detection carries out calculation process, to obtain touch point letter
Breath.
2. touch control detecting method as claimed in claim 1, it is characterised in that the display signal includes multiple time control signals
And multiple pixel informations, and the time control signal is to correspond respectively to the pixel information, this method also includes：
Delay disposal is carried out to the partial pixel data in an input picture, and produced respectively for pixel information after the delay
Corresponding time control signal.
3. touch control detecting method as claimed in claim 2, it is characterised in that the partial pixel data in an input picture
Carry out delay disposal the step of in, be directed to should M+1 arrange to Nth column pixel pixel information carry out delay disposal.
4. a kind of touch control detection device, for detecting the touch point on a display, it is included：
Time schedule controller there is provided one display signal so that the display according to the display signal in each picture display time
Inside possess at least two sections discontinuous vertical blanking times；And
One touch control detection circuit, at least two sections vertical blanking times, performs touch point detection respectively；
Wherein, the display includes N row pixels, and one first vertical blanking time at least two sections vertical blanking times is
Updated positioned at the display between m column pixel and M+1 row pixels, and N, M are positive integer, and M is less than N；
The time schedule controller separately produces one and detects initial signal, the touch control detection circuit is held in first vertical blanking time
The row touch control detection；
The touch control detection circuit is in after first vertical blanking time, and the result for the touch control detection carries out calculation process, with
Obtain a touch point information.
5. touch control detection device as claimed in claim 4, it is characterised in that the display signal is believed including multiple time controls
Number and multiple pixel informations, and the time control signal corresponds respectively to the pixel information, wherein, the time schedule controller
Delay disposal is carried out to the partial pixel data in an input picture, and correspondence is produced respectively for pixel information after the delay
Time control signal.
6. touch control detection device as claimed in claim 5, the time schedule controller is to be directed to should M+1 row pixel and thereafter
The pixel information of pixel carries out delay disposal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310064585.9A CN104020870B (en) | 2013-02-28 | 2013-02-28 | Touch control detecting method and its device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310064585.9A CN104020870B (en) | 2013-02-28 | 2013-02-28 | Touch control detecting method and its device |
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| Publication Number | Publication Date |
|---|---|
| CN104020870A CN104020870A (en) | 2014-09-03 |
| CN104020870B true CN104020870B (en) | 2017-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310064585.9A Active CN104020870B (en) | 2013-02-28 | 2013-02-28 | Touch control detecting method and its device |
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