CN106468982A - Touch display control unit and method - Google Patents
Touch display control unit and method Download PDFInfo
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- CN106468982A CN106468982A CN201610798230.6A CN201610798230A CN106468982A CN 106468982 A CN106468982 A CN 106468982A CN 201610798230 A CN201610798230 A CN 201610798230A CN 106468982 A CN106468982 A CN 106468982A
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- touch
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- scanning
- memorizer
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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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
Abstract
A kind of touch display control method and device, described touch display control method includes：In the display driving stage, display floater is carried out show driving and scan and data is revised based on the display content generation that display drives scanning corresponding；Touching sweep phase, touch panel is being carried out touch scanning to obtain touch scan data；After touching scanning and completing, carry out touch data process to obtain touch information according to revising data with touch scan data.Can reduce because touch panel is near with display floater distance makes the change of display picture that touch testing result is impacted, thus improving the precision touching detection.
Description
Technical field
It relates to touch display field, in particular it relates to touch display control unit and method.
Background technology
With scientific and technological progress, the thin design for touch screen requires more and more higher, thus touch panel and display surface
Compact design between plate is also more and more important.For example, in the recent touch proposing display integrated technique, can will touch
Panel embeds in display floater, and can integrate driver module with contact control module, to complete to show
Control and touch control.Display control and touch control can adopt time-sharing multiplex principle, drive in display and reserve between scanning
Time slot is for touching scanning.
But in the compact design with display floater for this touch panel, due to display floater with touch panel distance very
Closely, the change of the display picture on the display floater in each touch scanning can impact to the electrology characteristic of touch panel.
For example, for display panels, the change of display picture is relevant with liquid crystal capacitance, and the change of liquid crystal capacitance can be to tactile
Touch the self-capacitance of touch control electrode or mutual capacitance on panel to impact, thus impact leads to touch the result of detection.
Content of the invention
In view of this, present disclose provides a kind of touch display control unit and touch display control method, it is possible to reduce
Make the change of display picture that touch testing result is impacted because touch panel is near with display floater distance, thus improving
Touch the precision of detection.
A kind of one side according to the disclosure, there is provided touch display control method, including：Showing the driving stage, right
Display floater carries out showing driving scanning and driving the display content corresponding to scanning to generate correction data based on showing；Touching
Sweep phase, carries out to touch panel touching scanning to obtain touch scan data；After touching scanning and completing, according to correction
Data and touch scan data carry out touch data and process to obtain touch information.
In certain embodiments, the display driving stage is alternately present with touching sweep phase, drives rank in each display
The display that section completes a frame drives scanning, touches sweep phase at each and completes the once touch scanning to whole touch panel.
In certain embodiments, the display driving stage is alternately present with touching sweep phase, shows the driving stage at each
The display completing a frame drives a part for scanning, touches sweep phase at each and completes the once touch to whole touch panel
Scanning, and the display in a frame drives two touch sweep phases of presence in scanning process.
In certain embodiments, described touch scanning complete after according to revise data and touch scan data carry out
Touch data processes and is included with obtaining touch information：First touch occurring in scanning process is driven to sweep in the display of present frame
Retouch the stage touch scanning after the completion of, according to described first touch sweep phase obtain touch scan data and be directed to
The correction data of previous frame come to carry out touch data process to obtain touch information；And it is scanned in the display driving of present frame
After the completion of the touch scanning of the second touch sweep phase occurring in journey, the display of present frame is waited to drive completing of scanning,
And after the display of described present frame drives scanning to complete, the touch according to touching sweep phase acquisition at described second is swept
Retouch data and the correction data for described present frame to carry out touch data and to process to obtain touch information.
In certain embodiments, described touch display control method also includes：Scanning is driven to start in the display of each frame
When, it is appointed as being used to storage correction data by not processed the used memorizer of operation by touch data in multiple memorizeies
Memorizer；And correction data is stored after generating correction data using specified memorizer.
In certain embodiments, the plurality of memorizer includes first memory, second memory ... N memorizer, N
It is the integer more than 1, and described the used memorizer of operation will not processed by touch data in multiple memorizeies and be appointed as
The memorizer being used to store correction data includes：When the display of the first frame drives scanning to start it is intended that first memory
For revising data storage, after the first frame correction data storage completes, first memory is set as being available at touch data
Reason accesses；When the display of the second frame drives scanning to start it is intended that second memory is used for revising data storage；Specifying n-th
After memorizer is used for revising data storage, 1≤n≤N, when the display of a new frame drives scanning to start, judge whether
Becoming the data processing in previous memorizer, if completed, current storage being set as that being available for touch data processes access
And specify next one memorizer to be appointed as revising data storage, otherwise continue to specify current storage to be used for revising data and deposit
Storage, the previous memorizer of wherein first memory is N memorizer, and a rear memorizer of N memorizer is the first storage
Device.
According to another aspect of the present disclosure, there is provided a kind of touch display control unit, including：Driver module, uses
Drive scanning in display floater being carried out with display in the display driving stage, the corresponding display content life of scanning is driven based on display
Become to revise data, and will revise in data storage repairing correction data memory module, and touch scan control module for controlling
Enter and touch sweep phase；Touch scan module, touch sweep phase for entering under the control of driver module, and
Touch sweep phase touch panel is carried out touch scanning with obtain touch scan data and by touch scan data be stored in
Touch in scan data memory module；Touch data processing module, after completing in the touch scanning touching scan module,
Carried out according to the touch scan data in the correction data revised in data memory module and touch scan data memory module
Touch data is processed to obtain touch information；Revise data memory module, revise data for storage；And touch scan data
Memory module, touches scan data for storage.
In certain embodiments, described driver module includes：Display driver element, for driving in each display
The display driving that stage completes a frame scans, and for sending touch scan enable signal so that showing to touch scan module
Show that the driving stage is alternately present with touching sweep phase；Revise data generating unit, for the display based on display driver element
The corresponding display content of driving scanning generates revises data, and revises data storage repairing correction data memory module by described
In.
In certain embodiments, described touch scan module includes：Touch scanning element, for driving mould according to from display
The touch scan enable signal that block receives enters and touches sweep phase, touches sweep phase at each and carries out to whole touch surface
Plate once touch scanning with obtain touch scan data and by touch scan data be stored in touch scan data memory module
In, and notifier processes control unit after completing every time to touch scanning；Processing and control element (PCE), for connecing from touch scanning element
Receive to touch and when scanning the notice completing, start touch data processing module.
In certain embodiments, described driver module includes：Display driver element, for driving rank in each display
Section complete a frame display drive scanning a part, to touch scan module send touch scan enable signal make display drive
The dynamic stage is alternately present and there are two touch scanning ranks in the display driving scanning process of a frame with touching sweep phase
Section, and often complete the display driving scanning of a frame just to touch scan module transmission display synchronization signal；And correction data
Signal generating unit, revises data for driving the corresponding display content of scanning to generate based on the display of display driver element, and will
In described correction data storage repairing correction data memory module.
In certain embodiments, described touch scan module includes：Touch scanning element, for driving mould according to from display
The touch scan enable signal that block receives enters and touches sweep phase, touches sweep phase at each and carries out to whole touch surface
Plate once touch scanning with obtain touch scan data and by touch scan data be stored in touch scan data memory module
In, and notifier processes control unit after completing every time to touch scanning；Processing and control element (PCE), for receiving the synchronous letter of display
Number afterwards display in present frame drives in scanning process and to receive touch that scanning completes logical from touching scanning element for the first time
When knowing, control touch data processing module according to described first time complete touch the obtained touch scan data of scanning and
Correction data for previous frame to carry out touch data and processes obtaining touch information, and receiving display synchronization signal
Display in present frame afterwards drives to receive from touch scanning element for second in scanning process and touches the notice that scanning completes
When, wait display synchronization signal, and control touch data processing module when receiving display synchronization signal again according to described
The touch completing for the second time scans obtained touch scan data and the correction data for present frame to carry out touching number
Obtain touch information according to processing.
In certain embodiments, described correction data memory module includes multiple memorizeies；Described touch scan module is also
Including memorizer select unit, described memorizer select unit is used for when the display of each frame drives scanning to start, will be described
The memorizer not used by touch data processing module in multiple memorizeies is appointed as will being used to store revising depositing of data
Reservoir；And described driver module is used for after generating correction data to revise data storage in the described storage specified
In device.
In certain embodiments, the plurality of memorizer includes first memory, second memory ... N memorizer, N
It is the integer more than 1, and described memorizer select unit is used for：When the display of the first frame drives scanning to start it is intended that the
One memorizer is used for revising data storage, after the correction data storage of the first frame completes, first memory is set as being available for
Touch data processes and accesses；When the display of the second frame drives scanning to start it is intended that second memory is used for revising data storage；
After specified n-th memorizer is used for revising data storage, 1≤n≤N, when the display of a new frame drives scanning to start, sentences
The disconnected data processing whether completing in previous memorizer, if completed, current storage is set as being available for touch data
Process accesses and specifies next memorizer to be appointed as revising data storage, otherwise continues to specify current storage to be used for repairing
Correction data stores, and the previous memorizer of wherein first memory is N memorizer, and a rear memorizer of N memorizer is
First memory.
Brief description
In order to be illustrated more clearly that the technical scheme of the embodiment of the present disclosure, below by simple Jie of accompanying drawing work to embodiment
Continue it should be apparent that, the accompanying drawing in explained below only relates to some embodiments of the present disclosure, rather than restriction of this disclosure.
Fig. 1 shows the block diagram of touch display control unit 100 in accordance with an embodiment of the present disclosure.
Fig. 2 shows the block diagram of the driver module of touch display control unit in accordance with an embodiment of the present disclosure.
Fig. 3 shows the block diagram of touch scan module in accordance with an embodiment of the present disclosure.
Fig. 4 a show the touch scan enable signal under normal scan mode in accordance with an embodiment of the present disclosure when
Sequence figure.
Fig. 4 b shows that the display synchronization signal under high-velocity scanning pattern in accordance with an embodiment of the present disclosure and touch are swept
Retouch the sequential chart enabling signal.
Fig. 5 shows the block diagram of correction data memory module in accordance with an embodiment of the present disclosure.
The flow chart that Fig. 6 shows touch display control method in accordance with an embodiment of the present disclosure.
The flow chart that Fig. 7 shows touch display control method in accordance with an embodiment of the present disclosure under normal scan mode.
The flow chart that Fig. 8 shows touch display control method in accordance with an embodiment of the present disclosure under high-velocity scanning pattern.
Specific embodiment
Purpose, technical scheme and advantage for making the embodiment of the present disclosure are clearer, below in conjunction with the embodiment of the present disclosure
Accompanying drawing, clear, complete description is carried out to the technical scheme of the embodiment of the present disclosure.Obviously described embodiment is the disclosure
A part of embodiment, rather than whole embodiment.Based on described embodiment of the disclosure, ordinary skill people
The every other embodiment that member is obtained on the premise of without creative work, broadly falls into the scope of disclosure protection.
Embodiment of the disclosure proposes one kind and touches display control unit, by being driven corresponding to scanning based on display
Display content generates to be revised data and carries out touch data process according to revising data with touching scan data, can compensate aobvious
Show changing to the impact touching testing result of picture, thus improving the precision touching detection.
Fig. 1 shows the block diagram of touch display control unit 100 in accordance with an embodiment of the present disclosure.
As shown in figure 1, touch display control unit 100 and including driver module 101, touching scan module 102, touch
Data processing module 103, correction data memory module 104 and touch scan data memory module 105.
Driver module 101 is used in the display driving stage, display floater being carried out with display driving scanning, based on display
Drive the corresponding display content of scanning to generate and revise data, and will revise in data storage repairing correction data memory module 104,
And touch scan control module entrance touch sweep phase for controlling.In embodiment of the disclosure, revising data can be
The data being generated based on the electrology characteristic on display floater, that reflects the electrology characteristic on display floater, by touching
Data processing considers this correction data, can revise the result of touch data process, reduces the electrology characteristic pair of display floater
In the impact touching testing result.As an example, revising data can be capacitance compensation data, in order to compensate electricity on display floater
Hold the impact changing to the electric capacity on touch panel of (liquid crystal capacitances on such as display panels).
Fig. 2 shows the block diagram of driver module 101 in accordance with an embodiment of the present disclosure.As shown in Fig. 2 display drives
Module 101 can include display driver element 1011 and revise data generating unit 1012.
Touch scan module 102 to be used for entering touch sweep phase under the control of driver module 101, and touching
Touch sweep phase touch panel is carried out touch scanning with obtain touch scan data and by touch scan data be stored in touch
In scan data memory module 105.Fig. 3 shows the block diagram of touch scan module 102 in accordance with an embodiment of the present disclosure.As figure
Shown in 3, touch scan module 102 and can include touching scanning element 1021, processing and control element (PCE) 1022 and memorizer selection list
Unit 1023.
Touch data processing module 103 is used for after the touch scanning touching scan module 102 completes, according to correction number
Touched according to the touch scan data in the correction data in memory module 104 and touch scan data memory module 105
Data processing is to obtain touch information.
Revise data memory module 104 and be used for storage correction data.
Touch scan data memory module 105 and be used for storage touch scan data.
The touch scanning of touch display control unit in accordance with an embodiment of the present disclosure can be in normal scan mode and height
Carry out under fast scan pattern both scan patterns.Under normal scan mode, the display of each frame drives the corresponding frame of scanning
Touch scanning, that is, touch report point rate identical with display refresh rates, typically, this frequency can be 60Hz.Sweep in high speed
Retouch under pattern, the display of each frame drives the touch scanning of corresponding two frames of scanning, for example, drive rate of scanning 60Hz's in display
In the case of, touch rate of scanning and can reach 120Hz, higher touch rate of scanning can realize faster touch-responsive speed
Touch fluency with more preferable.
The touch display control unit of the embodiment of the present disclosure to be described in two kinds of different touches below with reference to Fig. 4 a and Fig. 4 b
Operation under scan pattern.
Fig. 4 a show the touch scan enable signal under normal scan mode in accordance with an embodiment of the present disclosure when
Sequence figure, wherein a represent touch sweep phase, this stage carry out to the once touch of whole touch panel scanning (that is,
The touch scanning of one frame), b represents the display driving stage, and the display carrying out a frame in this stage drives scanning and repaiies accordingly
Correction data updates.
The display driver element 1011 of driver module 101 drives the stage to complete the display drive of a frame in each display
Dynamic scanning, and send touch scan enable signal as shown in fig. 4 a so that showing the driving stage to touching scan module 102
It is alternately present with touching sweep phase.The correction data generating unit 1012 of driver module 101 is based on display driver element
101 display content corresponding to display driving scanning generates revises data, and revises data storage repairing correction data by described
In memory module 104.
The touch scanning element 1021 touching scan module 102 is swept according to the touch receiving from driver module 101
Retouch enable signal and enter touch sweep phase, touch sweep phase at each and carry out the once touch scanning to whole touch panel
It is stored in touch scan data memory module 105 with acquisition touch scan data and by touching scan data, and complete every time
Become to touch notifier processes control unit 1022 after scanning.
Touch the processing and control element (PCE) 1022 of scan module 102 receiving touch and scan through from touching scanning element 1021
The notice becoming starts and controls touch data processing module 103 so that touch data processing module 103 obtains according to this touch scanning
The touch scan data obtaining and the display touching before scanning at this drive the correction data of stage acquisition to be touched
Data processing is to obtain touch information.
Fig. 4 b shows that the display synchronization signal under high-velocity scanning pattern in accordance with an embodiment of the present disclosure and touch are swept
Retouch the sequential chart enabling signal, wherein a represents touch sweep phase, carries out the once touch to whole touch panel in this stage
Scanning (that is, the touch scanning of a frame), b represents the display driving stage, and the display carrying out a frame in this stage drives the one of scanning
Part and corresponding data of revising update, and when the display completing a frame drives scanning, display synchronization signal occurs once
Pulse, drives the end of scanning with the display indicating a frame.
The display that the display driver element 1011 of driver module 101 completes a frame in each display driving stage drives
A part for scanning, and often complete the display driving scanning of a frame just to touch scan module 102 transmission display synchronization signal
Scanning is driven to complete with the display indicating this frame.Display driver element 1011 also sends as Fig. 4 b institute to touch scan module 102
The touch scan enable signal shown is so that the display driving stage is alternately present with touch sweep phase and the display in a frame is driven
There are two touch sweep phases in dynamic scanning process.
The display based on display driver element for the correction data generating unit 1012 of driver module 101 drives scanning institute
Corresponding display content generates revises data, and by described correction data storage repairing correction data memory module 104.
The touch scanning element 1021 touching scan module 102 is swept according to the touch receiving from driver module 101
Retouch enable signal and enter touch sweep phase, touch sweep phase at each and carry out the once touch scanning to whole touch panel
It is stored in touch scan data memory module 105 with acquisition touch scan data and by touching scan data, and complete every time
Become to touch notifier processes control unit 1022 after scanning.
Touch the processing and control element (PCE) 1022 of scan module 102 and receive display synchronization signal (as shown in Figure 4 b aobvious
Show first pulse in synchronizing signal) drive in the display of present frame (frames between two pulses of display synchronization signal) afterwards
Receive when touch scans the notice completing (for example, as shown in fig. 4 a from touch scanning element for the first time in dynamic scanning process
When first touch sweep phase a completes), control touch data processing module to scan institute according to the touch that described first time completes
The touch scan data of acquisition and the correction data for previous frame to carry out touch data and to process to obtain touch information, with
And connect from touch scanning element for second in the display driving scanning process of present frame after receiving display synchronization signal
Receive and touch when scanning the notice completing (when for example, second touch sweep phase a as shown in fig. 4 a completes), wait to be shown
Synchronizing signal, and when receiving display synchronization signal (second pulse in display synchronization signal as shown in Figure 4 b) again
Control touch data processing module 103 according to the obtained touch scan data of the described touch scanning completing for the second time and pin
Touch data process acquisition touch information is carried out to the correction data of present frame.
Fig. 5 shows the block diagram of correction data memory module 105 in accordance with an embodiment of the present disclosure.As shown in figure 5, revising
Data memory module 105 can include memorizer 1051,1052 ..., 105N, and wherein N is the integer more than 1.In this situation
Under, touch scan module 102 and can also include memorizer select unit 1023, as shown in Figure 3.Memorizer select unit 1023 exists
By memorizer 1051,1052 when the display of each frame drives scanning to start ..., not by touch data processing module 102 in 105N
The memorizer being used is appointed as will being used to store the memorizer revising data.Driver module 101 is generating correction number
According to afterwards will revise data storage in the memorizer specified by memorizer select unit 1023.
To describe how memorizer select unit 1023 specifies the storage that will be used to store correction data below with reference to Fig. 5
Device.When the display of the first frame drives scanning to start, it is possible to specify first memory 1051 is used for revising data storage, the first frame
Correction data storage complete after, first memory 1051 be set as being available for touch data process accessing；In the second frame
It is intended that second memory 1052 is used for revising data storage when display drives scanning to start；It is used for revising in specified n-th memorizer
After data storage, 1≤n≤N, when the display of a new frame drives scanning to start, judge whether to complete previous memorizer
In data processing, if completed, current storage be set as being available for touch data process accessing and specifying the next one to deposit
Reservoir is appointed as revising data storage, otherwise continues to specify current storage to be used for revising data storage, wherein first deposits
The previous memorizer of reservoir 1051 is N memorizer 105N, and a rear memorizer of N memorizer is first memory
1051.
The flow chart that Fig. 6 shows touch display control method 600 in accordance with an embodiment of the present disclosure.
In step S601, in the display driving stage, display floater is carried out show that driving scans and is based on display driving and sweep
Retouch corresponding display content and generate correction data.In embodiment of the disclosure, revising data can be based on display floater
Electrology characteristic and the data that generates, that reflects the electrology characteristic on display floater, by considering in processing in touch data
This correction data, can revise the result of touch data process, and the electrology characteristic reducing display floater is for touch testing result
Impact.As an example, revising data can be capacitance compensation data, in order to compensate (the such as liquid crystal of electric capacity on display floater
Show the liquid crystal capacitance on panel) the impact to the electric capacity on touch panel for the change.
In step S602, touching sweep phase, touch panel is being carried out touch scanning to obtain touch scan data.
In step S603, after touching scanning and completing, carry out touch data according to revising data with touching scan data
Process to obtain touch information.
In embodiment of the disclosure, touch scanning and can scan mould in normal scan mode and high-velocity scanning pattern both
Carry out under formula.As above with reference to described in Fig. 4 a and Fig. 4 b, under normal scan mode, the display of each frame drives scanning to correspond to
The touch scanning of one frame, that is, touch report point rate is identical with display refresh rates, typically, this frequency can be 60Hz.In height
Under fast scan pattern, the display of each frame drives the touch scanning of corresponding two frames of scanning, for example, drive rate of scanning in display
In the case of 60Hz, touch rate of scanning and can reach 120Hz, higher touch rate of scanning can be realized touching sound faster
Answer speed and more preferable touch fluency.
Fig. 7 shows the flow process of touch display control method 700 in accordance with an embodiment of the present disclosure under normal scan mode
Figure.
In step S701, touch scan enable signal is waited to be changed into invalid, when touch scan enable signal is changed into invalid
Execution step S702.Touch enable signal and be changed into the invalid representation entrance display driving stage, start the display to touch panel and drive
Dynamic scanning.
In step S702 it is intended that will be used to store the memorizer revising data, carry out display and drive scanning, generate and revise
Data is simultaneously stored in the memorizer specified.In this step, touch scan module can not touched in multiple memorizeies
The memorizer that data processing operation is used is appointed as will being used to store the memorizer revising data, and driver module
Enter the display driving stage, the display completing a frame in this stage drives scanning, the display content based on this frame generates revises number
According to, and data storage will be revised in the memorizer specified by touch scan module.In embodiment of the disclosure, revising data can
To be the data generating based on the electrology characteristic on display floater, that reflects the electrology characteristic on display floater, by
Touch data considers this correction data in processing, and can revise the result of touch data process, and the electricity reducing display floater is special
Property for touch testing result impact.As an example, revising data can be capacitance compensation data, in order to compensate display floater
The impact to the electric capacity on touch panel for the change of upper electric capacity (liquid crystal capacitances on such as display panels).
Can come in such a way to specify and will be used to store the memorizer revising data.
When the display of the first frame drives scanning to start it is intended that first memory is used for revising data storage, the first frame is repaiied
After correction data storage completes, first memory is set as that being available for touch data processes access；Drive in the display of the second frame
It is intended that second memory is used for revising data storage when scanning starts；After specified n-th memorizer is used for revising data storage
(1≤n≤N), when the display of a new frame drives scanning to start, judges whether to complete at the data in previous memorizer
Reason, if completed, current storage is set as that being available for touch data process accesses and specify next one memorizer to be appointed as
For revising data storage, otherwise continue to specify current storage to be used for revising data storage, wherein first memory is previous
Individual memorizer is N memorizer, and a rear memorizer of N memorizer is first memory.
For example, in the case of using two memorizeies, can be carried out as follows to specify will be used to store and revise depositing of data
Reservoir：The first frame display drive scanning start when it is intended that first memory be used for the first frame correction data storage, first
After frame correction data storage, first memory is set as that being available for data processing accesses；Drive scanning in the display of the second frame
It is intended that second memory is used for the correction data storage of the second frame during beginning.Hereafter, it is used for revising number in specified second memory
After storage, when the display of a new frame drives scanning to start, judge whether the data processing of first memory completes, if
It is then second memory to be set as that being available for data processing accesses and specify first memory to be used for revising data storage, otherwise
Continue to specify second memory to be used for revising data storage.After specified first memory is used for revising data storage, Mei Dangxin
When the display of one frame drives scanning to start, judge whether the data processing of second memory completes, if it is, first is stored
Device is set as that being available for data processing accesses and specify second memory to be used for revising data storage, otherwise continues to specify the first storage
Device is used for revising data storage.
In step S703, touch scan enable signal is waited to be changed into effective, when touch scan enable signal is changed into effective
Execution step S704.Touch enable signal to be changed into effectively indicating entry into touch sweep phase, start the touch of touch panel is swept
Retouch.
In step S704, touch panel is carried out touch scanning.Touching sweep phase, touching scan module and complete to whole
The once touch scanning of individual touch panel, thus obtain touch scan data.
In step S705, judge to touch whether scanning completes, if it is, execution step S706, and return to step S701
So that driver module and touch scan module is continued waiting for touch scan enable signal and be changed into invalid, otherwise continue executing with step
S704.
In step S706, carry out touch data process to obtain touch information according to revising data with touch scan data.
In this step, touch data processing module can obtain according to the touch scan data obtaining in step S704 with step S702
Correction data carrying out touch data process, to obtain touch information.
Fig. 8 shows the flow process of touch display control method 800 in accordance with an embodiment of the present disclosure under high-velocity scanning pattern
Figure.
In step S801, wait display synchronization signal, execution step S802 and S803 when display synchronization signal occurs.Aobvious
Show that the appearance of synchronizing signal represents that the display of previous frame drives the end of scan and the display of present frame drives scanning to start.
In step S802, the correction data according to previous frame and the last touch scan data completing carry out touch data
Process to obtain touch information.
In step S803 it is intended that will be used to store the memorizer revising data, carry out display and drive scanning, generate and revise
Data is simultaneously stored in the memorizer specified.In this step, touch scan module can not touched in multiple memorizeies
The memorizer that data processing operation is used is appointed as will being used to store the memorizer revising data, and driver module is to aobvious
Show that panel carries out showing and drive scanning and the display content based on this frame generates and revises data, data storage will be revised by touching
Touch in the memorizer that scan module is specified.In embodiment of the disclosure, revising data can be based on the electricity on display floater
Characteristic and the data that generates, that reflects the electrology characteristic on display floater, by considering this correction in touch data in processing
Data, can revise the result of touch data process, and the electrology characteristic reducing display floater is for the impact touching testing result.
As an example, revising data can be capacitance compensation data, in order to compensate electric capacity on display floater (on such as display panels
Liquid crystal capacitance) the impact to the electric capacity on touch panel for the change.
Can come in such a way to specify and will be used to store the memorizer revising data.
When the display of the first frame drives scanning to start it is intended that first memory is used for revising data storage, the first frame is repaiied
After correction data storage completes, first memory is set as that being available for touch data processes access；Drive in the display of the second frame
It is intended that second memory is used for revising data storage when scanning starts；After specified n-th memorizer is used for revising data storage
(1≤n≤N), when the display of a new frame drives scanning to start, judges whether to complete at the data in previous memorizer
Reason, if completed, current storage is set as that being available for touch data process accesses and specify next one memorizer to be appointed as
For revising data storage, otherwise continue to specify current storage to be used for revising data storage, wherein first memory is previous
Individual memorizer is N memorizer, and a rear memorizer of N memorizer is first memory.
For example, in the case of using three memorizeies, can be carried out as follows to specify will be used to store and revise depositing of data
Reservoir：The first frame display drive scanning start when it is intended that first memory be used for the first frame correction data storage, first
After frame correction data storage, first memory is set as that being available for data processing accesses.Drive scanning in the display of the second frame
It is intended that second memory is used for the correction data storage of the second frame during beginning.Hereafter, it is used for revising number in specified second memory
After storage, when the display of a new frame drives scanning to start, judge whether to complete the data processing in first memory,
If completing, second memory being set as being available for data processing and accesses and specify the 3rd memorizer to be used for revising data and deposit
Storage, otherwise continues storage in second memory.After specified 3rd memorizer is used for revising data storage, whenever a new frame
Display drive scanning start when, judge whether to complete the data processing in second memory, if completed, by the 3rd store
Device is set as that being available for data processing accesses and specify first memory to be used for revising data storage, otherwise continues in the 3rd memorizer
Middle storage.After specified first memory is used for revising data storage, when the display of a new frame drives scanning to start, sentence
The disconnected data processing whether completing in the 3rd memorizer, if completed, first memory is set as that being available for data processing visits
Ask and specify second memory to be used for revising data storage, otherwise continue to store in the first memory.
In step S804, wait touch scan enable signal to be for the first time changed into effective, believe when first time touches scanning and enables
Execution step S805 when number being changed into effective.Touch enable signal for the first time and be changed into effectively representing that the display in present frame drives scanning
During occur in that first touch sweep phase.
In step S805, touch panel is carried out touch scanning for the first time.In this stage, touch scan module and complete to whole
The once touch scanning of individual touch panel, thus obtain touch scan data.
In step S806, judge to touch whether scanning completes for the first time, if it is, execution step S807 and S808, no
Then continue executing with step S805.
In step S807, the correction data according to previous frame and the touch touching scanning acquisition for the first time in step S805 are swept
Retouch data and carry out touch data process to obtain touch information.
In step S808, wait second touch scan enable signal to be changed into effective, believe when first time touches scanning and enables
Execution step S808 when number being changed into effective.Touch enable signal for second and be changed into effectively representing that the display in present frame drives scanning
During occur in that second touch sweep phase.
In step S809, touch panel is carried out with second touch scanning.In this stage, touch scan module and complete to whole
The once touch scanning of individual touch panel, thus obtain touch scan data.
In step S810, judge second to touch whether scanning completes, if it is, return to step S801, so that again
Secondary after display synchronization signal, touch the touch scan data that scanning obtains and in step according in step S809 second
The correction data that S802 obtains carries out touch data process, otherwise continues executing with step S809.
Embodiment of the disclosure is by revising data basis based on the display content generation that display drives scanning corresponding
Revise data and touch scan data to carry out touch data process, it is possible to reduce because touch panel is near with display floater distance
(for example, for touch panel embeds the touch display integrated apparatus in display floater) and makes the change of display picture
Impact to touching testing result, thus improving the precision touching detection.
Embodiment of the disclosure scans for normal touch and touches the different touch scan pattern of scanning both with high speed,
The change that display picture all can be compensated is to impact, applied range and the strong adaptability touching testing result.Particularly in height
Speed touches under scan pattern, can make to touch scanning each time all with the time above nearest frame correction of this touch scanning of distance
Data compensating, thus improve the accuracy of compensation.
Embodiment of the disclosure to store by using multiple memorizeies revises data and the display driving in each frame
It is appointed as will being used to store by not processed the used memorizer of operation by touch data in multiple memorizeies when scanning starts
Revise the memorizer of data, can avoid when touch data processing module not yet completes the data operation of former frame, due to aobvious
Show that drive module accesses same memorizer with touch data processing module and causes memory access conflict.
The foregoing is only preferred embodiment of the present disclosure, be not limited to the disclosure, for those skilled in the art
For, the disclosure can have various change and change.Any modification of being made within all spirit in the disclosure and principle, equivalent
Replace, improve etc., should be included within the protection domain of the disclosure.
Claims (13)
1. a kind of touch display control method, including：
In the display driving stage, display floater is carried out show driving and scan and driven in the corresponding display of scanning based on display
Hold to generate and revise data；
Touching sweep phase, touch panel is being carried out touch scanning to obtain touch scan data；
After touching scanning and completing, touch data process is carried out according to correction data and touch scan data and is believed with obtaining to touch
Breath.
2. touch display control method according to claim 1, wherein, the display driving stage replaces with touching sweep phase
Occur, drive the stage to complete the display driving scanning of a frame in each display, touch sweep phase at each and complete to whole
The once touch scanning of touch panel.
3. touch display control method according to claim 1, wherein,
The display driving stage is alternately present with touching sweep phase, and the display completing a frame in each display driving stage drives sweeps
The part retouched, touches sweep phase at each and completes the once touch scanning to whole touch panel, and aobvious in a frame
Show in driving scanning process, there are two touch sweep phases.
4. touch display control method according to claim 3, wherein, described touch scanning complete after according to correction
Data and touch scan data to carry out touch data process and to be included with obtaining touch information：
After the completion of the display of present frame drives the touch scanning of the first touch sweep phase occurring in scanning process, according to
Touched in the described first correction data touching the sweep phase touch scan data obtaining and being directed to previous frame
Data processing is to obtain touch information；And
After the completion of the display of present frame drives the touch scanning of the second touch sweep phase occurring in scanning process, wait
The display of present frame drives completing of scanning, and drives after scanning completes in the display of described present frame, according to described the
The touch scan datas of two touch sweep phase acquisitions and the correction data for described present frame to carry out touch data
Process to obtain touch information.
5. touch display control method according to claim 1, also includes：
When the display of each frame drives scanning to start, operate used to deposit by not processed by touch data in multiple memorizeies
Reservoir is appointed as will being used to store the memorizer revising data；And
Store correction data using specified memorizer after generating correction data.
6. touch display control method according to claim 5, wherein, the plurality of memorizer include first memory,
Second memory ... N memorizer, N is the integer more than 1, and described will not processed by touch data in multiple memorizeies
The memorizer that used memorizer is appointed as being used to store correction data is operated to include：
When the display of the first frame drives scanning to start it is intended that first memory is used for revising data storage, the first frame correction number
After completing according to storage, first memory is set as that being available for touch data processes access；
When the display of the second frame drives scanning to start it is intended that second memory is used for revising data storage；
After specified n-th memorizer is used for revising data storage, 1≤n≤N, whenever the display of a new frame drives scanning to start
When, judge whether to complete the data processing in previous memorizer, if completed, current storage is set as can be for touch
Data processing accesses and specifies next memorizer to be appointed as revising data storage, otherwise continues to specify current storage to use
In revising data storage, the previous memorizer of wherein first memory is N memorizer, a rear storage of N memorizer
Device is first memory.
7. a kind of touch display control unit, including：
Driver module, is driven scanning for display floater being carried out with display in the display driving stage, is swept based on display driving
Retouch corresponding display content and generate correction data, and will revise in data storage repairing correction data memory module, and be used for
Control and touch scan control module entrance touch sweep phase；
Touch scan module, touch sweep phase for entering under the control of driver module, and touch scanning rank
Section carries out touching scanning and touches scan data and be stored in touch scan data by touching scan data to obtain to touch panel
In memory module；
Touch data processing module, after completing in the touch scanning touching scan module, according to correction data storage mould
Correction data in block to carry out touch data and to process to obtain with the touch scan data touching in scan data memory module
Touch information；
Revise data memory module, revise data for storage；And
Touch scan data memory module, touch scan data for storage.
8. touch display control unit according to claim 7, wherein, described driver module includes：
Display driver element, for each display drive the stage complete a frame display drive scanning, and for touch
Touch scan module and send touch scan enable signal so that the display driving stage is alternately present with touching sweep phase；
Revise data generating unit, repair for driving the corresponding display content of scanning to generate based on the display of display driver element
Correction data, and by described correction data storage repairing correction data memory module.
9. touch display control unit according to claim 8, wherein, described touch scan module includes：
Touch scanning element, touch scanning rank for entering according to the touch scan enable signal receiving from driver module
Section, touches sweep phase at each and carries out the once touch scanning of whole touch panel is touched scan data and will touch to obtain
Touch scan data to be stored in touch scan data memory module, and notifier processes control list after completing every time to touch scanning
Unit；
Processing and control element (PCE), at touching and starting touch data when scanning element receives and touches and scan the notice completing
Reason module.
10. touch display control unit according to claim 7, wherein, described driver module includes：
Display driver element, the display for completing a frame in each display driving stage drives a part for scanning, to touch
Scan module sends touch scan enable signal and makes to show that the driving stage is alternately present and in a frame with touching sweep phase
Display drive scanning process in exist two touch sweep phases, and often complete a frame display drive scanning just to touch
Scan module sends display synchronization signal；And
Revise data generating unit, repair for driving the corresponding display content of scanning to generate based on the display of display driver element
Correction data, and by described correction data storage repairing correction data memory module.
11. touch display control units according to claim 10, wherein, described touch scan module includes：
Touch scanning element, touch scanning rank for entering according to the touch scan enable signal receiving from driver module
Section, touches sweep phase at each and carries out the once touch scanning of whole touch panel is touched scan data and will touch to obtain
Touch scan data to be stored in touch scan data memory module, and notifier processes control list after completing every time to touch scanning
Unit；
Processing and control element (PCE), drives first in scanning process for the display in present frame after receiving display synchronization signal
Secondary from touch scanning element receive touch scanning complete notice when, control touch data processing module according to described first time
The touch completing scans obtained touch scan data and the correction data for previous frame to carry out touch data process
To obtain touch information, and the display in present frame drives second in scanning process after receiving display synchronization signal
When touch scanning element receives the notice that touch scanning completes, wait display synchronization signal, and receiving display again
Touch data processing module is controlled to scan number according to described the obtained touch of scanning that touches completing for the second time during synchronizing signal
According to this and for present frame correction data come to carry out touch data process obtain touch information.
The 12. touch display control units according to claim 9 or 11, wherein,
Described correction data memory module includes multiple memorizeies；
Described touch scan module also includes memorizer select unit, and described memorizer select unit is used for the display in each frame
When driving scanning to start, the memorizer not used by touch data processing module in the plurality of memorizer is appointed as will quilt
It is used for storing the memorizer revising data；And
Described driver module is used for after generating correction data to revise data storage in the described memorizer specified.
13. touch display control units according to claim 12, wherein, the plurality of memorizer includes the first storage
Device, second memory ... N memorizer, N is the integer more than 1, and described memorizer select unit is used for：
When the display of the first frame drives scanning to start it is intended that first memory is used for revising data storage, the correction of the first frame
After data storage completes, first memory is set as that being available for touch data processes access；
When the display of the second frame drives scanning to start it is intended that second memory is used for revising data storage；
After specified n-th memorizer is used for revising data storage, 1≤n≤N, whenever the display of a new frame drives scanning to start
When, judge whether to complete the data processing in previous memorizer, if completed, current storage is set as can be for touch
Data processing accesses and specifies next memorizer to be appointed as revising data storage, otherwise continues to specify current storage to use
In revising data storage, the previous memorizer of wherein first memory is N memorizer, a rear storage of N memorizer
Device is first memory.
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