CN109324717A - Touch display device and touch driving method - Google Patents
Touch display device and touch driving method Download PDFInfo
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- CN109324717A CN109324717A CN201811586680.4A CN201811586680A CN109324717A CN 109324717 A CN109324717 A CN 109324717A CN 201811586680 A CN201811586680 A CN 201811586680A CN 109324717 A CN109324717 A CN 109324717A
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- 238000000034 method Methods 0.000 title claims abstract description 41
- 238000001514 detection method Methods 0.000 claims description 7
- 210000001367 artery Anatomy 0.000 claims description 2
- 238000004080 punching Methods 0.000 claims description 2
- 210000003462 vein Anatomy 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 239000004973 liquid crystal related substance Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
-
- 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
Abstract
A touch display device and a touch driving method are provided, the touch driving method includes: detecting a synchronization signal from a display driving system; detecting an interference signal from the touch display panel, wherein the interference signal comprises a plurality of interference pulses; generating a plurality of trigger pulses within a fixed period of the synchronization signal according to the synchronization signal and the plurality of interference pulses; and generating a plurality of touch driving pulses according to the plurality of trigger pulses.
Description
Technical field
This disclosure relates to a kind of touch-control driving methods, and in particular to a kind of touch-control driving side for having anti-noise function
Method.
Background technique
It, mostly will be to show the liquid crystal display panel of picture and to sense in manufacture with the development of touch control display apparatus
The touch panel of touch-control is integrated.
However, due to the integration of liquid crystal display panel and touch panel, so that liquid crystal display panel is in display specific pattern
When the noise that generates influence whether the touching signals of touch panel.
Therefore, how to allow touch panel is not of today one big subject under discussion by the noise jamming from liquid crystal display panel.
Summary of the invention
One aspect of present disclosure is to be to provide a kind of touch-control driving method to include: detection is from display driving system
Synchronization signal；The interference signal from the touch-control display panel is detected, wherein the interference signal includes multiple interference arteries and veins
Punching；According to the synchronization signal and the multiple disturbing pulse, multiple touchings are generated within the fixed cycle of the synchronization signal
Send out pulse；And multiple touch-control driving pulses are generated according to the multiple trigger pulse.
Another aspect of present disclosure is to be to provide a kind of touch control display apparatus, and the touch control display apparatus includes touching
Control display panel, display driver circuit, timing control unit, touch-control driving unit and touch-control control unit.The wherein timing
Control unit is to provide synchronization signal to the display driver circuit.The touch-control control unit couples the timing control list
Member, the touch-control control unit is to execute following steps: detecting the synchronization signal；Detection comes from the touch-control display panel
Interference signal, the interference signal include multiple disturbing pulses；Estimated delays time, the delay time correspond to described
One of them time interval of synchronization signal and the multiple disturbing pulse；According to the synchronization signal and the delay time,
Multiple trigger pulses are generated within the fixed cycle of the synchronization signal；Output corresponds to the multiple of the multiple trigger pulse
Touch-control driving pulse is to the touch-control display panel.The touch-control driving unit couples the touch-control control unit, the touch-control
Driving unit is to generate the multiple touch-control driving pulse according to the multiple trigger pulse.
Via above-mentioned set-up mode, present disclosure can prevent from coming while integrating the plate of display panel and touch surface
From the operation of the influence of noise touch-control of display panel.
Present disclosure is intended to provide simplifying for present disclosure and makes a summary, so that reader has substantially present disclosure
Understanding, not point out the critical elements of present disclosure embodiment or define scope of the present disclosure.
Detailed description of the invention
For above and other purpose, feature, advantage and embodiment of the invention can be clearer and more comprehensible, the explanation of attached drawing is such as
Under:
Fig. 1 is to exemplify a kind of block diagram of touch control display apparatus according to an implementation of present disclosure；
Fig. 2 is to exemplify a kind of function box schematic diagram of touch control display apparatus according to an implementation of present disclosure；
Fig. 3 is that the stream of the touch-control driving method of touch control display apparatus in Fig. 1 is exemplified according to an implementation of present disclosure
Cheng Tu；
Fig. 4 is to exemplify the partial process view of touch-control driving method in Fig. 3 according to an implementation of present disclosure；
Fig. 5 is the time diagram of touch-control driving method in Fig. 4 according to shown by an embodiment of present disclosure；
Fig. 6 is to exemplify the partial process view of touch-control driving method in Fig. 3 according to an implementation of present disclosure；And
Fig. 7 is that touch-control driving method illustrates example in Fig. 6 according to shown by an embodiment of present disclosure.
Wherein, the reference numerals are as follows:
100: touch control display apparatus
110: touch-control control unit
120: touch-control driving unit
130: timing control unit
140: touch-control display panel
150: display driver circuit
300: touch-control driving method
Stou: touch drive signal
Ssync: synchronization signal
Stri: trigger signal
Sn: interference signal
Sd: data enabling signal
Ssync, P11, P12, P13: lock-out pulse
Ptou, P411, P421, P431, P432, P433: touch-control driving pulse
Ptri, P311, P321, P331, P332, P333: trigger pulse
Pn, P211, P212, P213, P221, P222, P223, P231, P232, P233: disturbing pulse
L1, L11, L12, L13: noiseless siding-to-siding block length
L2: pulse length
D, d1, d2, d3: delay time
TP1, TP2: period
S310-S340, S410-S470, S610-S640: step
Specific embodiment
It is hereafter to elaborate for embodiment cooperation attached drawing, but provided embodiment is not to limit disclosure institute
The range covered, and the non-sequence to limit its execution of the description of structure operation, any structure reconfigured by element, institute
The device with impartial technical effect is generated, is all the range that the disclosure is covered.In addition, attached drawing is only for the purpose of description, and
It maps not according to full size.To make to be easy to understand, similar elements or similar components will be with identical symbologies in following the description
To illustrate.
About " first " used herein, " second " ... etc., not especially censure the meaning of order or cis-position, also
The non-element described just for the sake of difference with same technique term limiting the present invention or operation.
About " coupling " used herein or " connection ", can refer to two or multiple element mutually directly make entity or electricity
Property contact, or mutually put into effect indirectly body or in electrical contact, and " coupling " or " connection " also can refer to two or multiple element mutually grasp
Make or acts.
Fig. 1 is to exemplify a kind of schematic diagram of touch control display apparatus 100 according to an implementation of present disclosure.Such as Fig. 1 institute
Show, touch control display apparatus 100 is aobvious comprising touch-control control unit 110, touch-control driving unit 120, timing control unit 130, touch-control
Show panel 140 and display driver circuit 150, wherein touch-control control unit 110 is coupled to touch-control driving unit 120 and timing control
Unit 130, touch-control driving unit 120 are more coupled to timing control unit 130 and touch-control display panel 140, timing control unit
130 are more coupled to display driver circuit 150, and touch-control display panel 140 is more coupled to display driver circuit 150.
In some embodiments, touch-control display panel 140 include touch panel and display panel, wherein display panel to
Show image frame, and touch panel to according to touch position generate voltage change, to realize touch control operation.In some implementations
In example, touch-control display panel 140 can be the touch-control display panel with embedded touch control panel (in-cell), that is, touch-control
Element integration is set in display panel, realizes touch control operation and picture display operation by timing control.In some embodiments
In, the touch control component of embedded touch control panel is in the array substrate (array substrate) being set in display panel.
In some embodiments, touch-control driving unit 120 is to generate multiple touch-control driving pulse Ptou, and by multiple touchings
Control driving pulse is sent to touch-control display panel 140, to judge whether touch-control display panel 140 is touched by conductor.In some realities
It applies in example, touch-control driving unit 120 can be implemented as touch chip (Touch IC).In some embodiments, touch-control control is single
Member 110, touch-control driving unit 120 and timing control unit 130 can be implemented as integrated chip.
In some embodiments, timing control unit 130 is to control touch-control driving unit 120 and display driver circuit
150 operation.In some embodiments, timing control unit 130 can be implemented as sequence controller (Timing
controller)。
In some embodiments, display driver circuit 150 is to drive touch-control display panel 140 to generate corresponding picture.
In some embodiments, display driver circuit 150 can be implemented as the source electrode that 140 one or both sides of touch-control display panel are arranged in
Driver (source driver) and gate drivers (gate driver).In another embodiment, display driver circuit 150
It can be implemented as the source electrode driver that 140 side of touch-control display panel is set.And gate drivers can be set and show in touch-control
In the array substrate for showing 140 periphery of panel.
In some embodiments, touch-control control unit 110 to detect the synchronization signal from timing control unit 130,
The interference signal from touch-control display panel 140 is detected, estimation corresponds to the delay time of synchronization signal and interference signal, foundation
Synchronization signal and delay time export correspondence in generating multiple trigger pulses (trigger) in the fixed cycle of synchronization signal
In multiple trigger pulses multiple touch-control driving pulse Ptou to touch-control display panel 140.
In some embodiments, the signal transmission between each element in touch control display apparatus 100 shown in FIG. 1 is as schemed
Shown in 2, Fig. 2 is to exemplify a kind of function box schematic diagram of touch control display apparatus 100 according to an implementation of present disclosure.
As shown in Fig. 2, every a line of touch-control display panel 140 includes red pixel (R), green in some embodiments
Pixel (G) and blue pixel (B), every one-row pixels are sequentially alternately connected to high-voltage level and low voltage level, and each
The two neighboring pixel of row pixel is respectively connected to high-voltage level and low voltage level.In other words, touch-control display panel 140
Pixel arrangements (pixel arrangement) are three grids (Tri-gate) dot structure, polarity row reversion (Column
Inversion) setting and Z-shaped (Zigzag) pixel layout.
As shown in Fig. 2, when the vertical line direction pixel that touch-control display panel 140 is shown has same color, that is, touch-control
When display panel 140 shows vertical stripes (V-stripe) pattern, touch-control display panel 140 can be made to generate maximum noise,
And then the transmission for significantly influencing touching signals receives, however it is shown in any pattern on touch-control display panel 140 all
The noise of different amplitudes can be generated, therefore various patterns are all in the range of present disclosure is protected.
As shown in Fig. 2, each column pixel is respectively connected to 1~G6 of gate lines G in touch-control display panel 140, and touch-control is aobvious
Show that every one-row pixels are respectively connected to signal wire S1~S7 in panel 140.
As shown in Fig. 2, timing control unit 130 provides a synchronization signal Ssnyc to touch-control control unit 110 and touch-control drive
Moving cell 120, wherein the synchronization signal Ssync includes horizontal synchronizing signal (Hsync), vertical synchronizing signal (Vsync).In
In following embodiments, all explained by taking horizontal synchronizing signal Hsync as an example.
As shown in Fig. 2, the two sides of touch-control display panel 140 are arranged in display driver circuit 150, to provide driving display
Signal is to touch-control display panel 140, so that touch-control display panel 140 shows corresponding image frame.
In some embodiments, touch-control driving unit 120 is to generate touch-control driving pulse Ptou to touch-control display panel
140 touch-control input driving end TX, and the touch-control input from touch-control display panel 140 is received by touch-control driving unit 120
Sense the signal of end RX.
In some embodiments, touch-control control unit 110 is to detect the synchronization signal from timing control unit 130
Ssync；Detect the interference signal Sn from touch-control driving unit 120；Delay time d needed for detecting touch-control, and according to described
Interference signal Sn and delay time d generate multiple trigger pulse Ptri and export to touch-control driving unit 120.
The detailed implementation methods of present disclosure describe in following paragraphs referring to the touch-control driving method in Fig. 3, wherein
Fig. 3 is that the process of the touch-control driving method 300 of touch control display apparatus 100 in Fig. 1 is exemplified according to an implementation of present disclosure
Figure.However, present disclosure is not limited to following embodiments.
It should be noted that the touch-control that touch-control driving method 300 can be applied to the same or similar structure shown in Fig. 1 is aobvious
Showing device 100.And be to keep narration simple, below will an embodiment according to the present invention, be with the touch control display apparatus 100 in Fig. 1
Example carries out the narration to operating method, and so the present invention is not limited with this application.
Together referring to Fig. 2, Fig. 3, touch-control driving method 300 includes the following steps.
In step S310, touch-control control unit 110 detects the synchronization signal Ssync from timing control unit 130.
In step S320, touch-control driving unit 120 detects the interference signal Sn from touch-control display panel 140 and transmits
To touch-control control unit 110, wherein interference signal Sn includes multiple disturbing pulse Pn.In some embodiments, the interference letter
Number Sn can be obtained via the signal of touch-control input sensing end RX of the parsing from touch-control display panel 140.
In step S330, touch-control control unit 110 is according to synchronization signal Ssync and multiple disturbing pulse Pn, in synchronization
Multiple trigger pulse Ptri are generated within the fixed cycle of signal Ssync is sent to touch-control driving unit 120.
In step S340, touch-control driving unit 120 generates multiple touch-control driving pulses according to multiple trigger pulse Ptri
Ptou is simultaneously sent to touch-control display panel 140 to control the time of touch-control.
Together refering to Fig. 4 and Fig. 5.Fig. 4 is to show touch-control driving method in Fig. 3 according to the section Example of present disclosure
300 further details flow chart, wherein the step S320 of Fig. 3 includes step S410, and step S330 further includes step
S420 to S460.Fig. 5 is the timing signal of touch-control driving method 300 in Fig. 4 according to shown by an embodiment of present disclosure
Figure
In step S410, whether the touch-control input sensing end RX of the detection touch-control driving unit 120 of touch-control driving unit 120
There are interference signal Sn.In this step, interference signal Sn can be the change of the signal via detection touch-control input sensing end RX
Change and analyze and learn, this interference signal Sn is further sent to touch-control control unit 110 by touch-control driving unit 120.
In some embodiments, if touch-control control unit 110 judges the touch-control input sensing end RX of touch-control driving unit 120
There are interference signal Sn, execute step S420.If touch-control control unit 110 judges the touch-control input sense of touch-control driving unit 120
It surveys end RX and interference signal Sn is not present, execute step S470, touch-control control unit 110 generates triggering according to synchronization signal Ssync
Pulse Ptri, and touch-control driving unit 120 generates touch-control driving pulse Ptou according to trigger pulse Ptri.
In step S420, delay time is set, in some embodiments, the delay time of step S420 setting is one
Initial delay time d1 (as shown in Figure 5), for example, can be set initial delay time d1 in step S420
For for 1ms.
In step S430, touch-control control unit 110 generates one according to lock-out pulse Ssync and initial delay time d1
A trigger pulse P311.It is to illustrate with Fig. 5, the start time point of trigger pulse P311 is that lock-out pulse P11 adds delay time
d1.And step S430 generates touch-control driving pulse P411 corresponding with trigger pulse P311.In this embodiment, touch-control driving
The starting point of pulse P411 is determined by the time point of trigger pulse P311, and the duration of touch-control driving pulse P411 is by touch-control
Driving unit 120 is completed time span required for a touch control detection and is determined.If touch-control driving unit 120 is completed once to touch
Time required for control detects is shorter, then the duration of touch-control driving pulse P411 is then shorter.
In step S440, touch-control control unit 110 detects the lasting period of touch-control driving pulse P411, if by dry
Disturb signal Sn influence.The influence of signal Sn if touch-control control unit 110 judges to be interfered during touch-control driving pulse P411,
It is to illustrate with Fig. 5, touch-control control unit 110 judges to be interfered during touch-control driving pulse P411 the disturbing pulse of signal Sn
The influence of P211, thens follow the steps S450, calculates new delay time d, and generates another trigger pulse Ptri and corresponding accordingly
Touch-control driving pulse Ptou.In an embodiment, the calculating of new delay time d is to be incremented by delay time, that is to say, that
It is poor plus the regular hour that new delay time d2 can be previous delay time d1.For example, current can be prolonged
Slow time d1 (1ms) is equal to new delay time d2 (2ms) plus regular hour poor (1ms), specifically, above-mentioned
The numerical value of delay time d1, delay time d2 and time difference solely for the purpose of illustration on convenience, present disclosure and not only
Be limited to above-mentioned time numerical value, the demand of the visual practical application of the numerical value of delay time and adjust.
After calculating new delay time d2, step S450 by according to new delay time d2 in next lock-out pulse P12
New touch-control driving pulse P321 is generated when arrival, the start time point of touch-control driving pulse P321 is that lock-out pulse P12 is added
Delay time d2, and step S450 will generate touch-control driving pulse P421 corresponding with touch-control driving pulse P321, such as Fig. 4 and
Shown in Fig. 5, in this embodiment, the starting point of touch-control driving pulse P421 is determined by the time point of trigger pulse P321, and is touched
The duration for controlling driving pulse P421 is completed time span required for a touch control detection as touch-control driving unit 120 and is determined
It is fixed.It executes step S440 again at this time, judges the interference of the signal Sn that whether is interfered therebetween of touch-control driving pulse P421.
It is to illustrate with Fig. 5, touch-control control unit 110 judges to nevertheless suffer from interference signal during touch-control driving pulse P421
The influence of the disturbing pulse P221 of Sn then executes step S450 again, calculates new delay time d again, and generates accordingly another
One trigger pulse Ptri and corresponding touch-control driving pulse Ptou.At this point, the calculated new delay time d3 of step S450 can
To be previous delay time d2 poor plus the regular hour, for example, current delay time d2 (2ms) can be added
Regular hour poor (1ms) is equal to new delay time d3 (3ms).After calculating new delay time d3, step S450 will be according to
New touch-control driving pulse P331, touch-control driving pulse are generated when next lock-out pulse P13 is arrived at according to new delay time d3
The start time point of P331 is that lock-out pulse P13 adds delay time d3, and step S450 will be generated and touch-control driving pulse
The corresponding touch-control driving pulse P431 of P331.
As shown in Figures 4 and 5.At this time again execute step S440, judge touch-control driving pulse P431 therebetween whether by
To the interference of interference signal Sn.At this point, touch-control control unit 110 judges to be not affected by interference letter during touch-control driving pulse P431
The influence of number Sn is to illustrate with Fig. 5, and touch-control control unit 110 judge that interference is not affected by during touch-control driving pulse P431 to be believed
Number the disturbing pulse P231, P232 of Sn or the influence of other disturbing pulses, then follow the steps S460.
In some embodiments, in step S460, touch-control control unit 110 according to trigger pulse Ptri time point with
And the equal part siding-to-siding block length of the fixed cycle TP1 of synchronization signal Ssync generates the trigger pulse Ptri continued.It is to illustrate with Fig. 5,
Fixed cycle TP1 point is three equal part siding-to-siding block lengths by touch-control control unit 110, thus generate three trigger pulse P331,
P332 and P333.Trigger pulse P331, P332 and P333 are spaced the one third of fixed cycle TP1 each other.
The equal part siding-to-siding block length can be considered as trisection (that is, fixed week of the fixed cycle TP1 of synchronization signal Ssync
The one third of phase TP1).In another embodiment, equal part can also be carried out according to the fixed cycle of data enabling signal Sd,
That is, the data that the equal part siding-to-siding block length being spaced each other between trigger pulse P331, P332 and P333 can be set as open
The one third of the fixed cycle TP2 of dynamic signal Sd.
In this way, which trigger pulse P331, P332 and P333 are sent to touch-control driving unit by touch-control control unit 110
120, touch-control driving unit 120 generates touch-control pulse P431, P432 and P433 according to trigger pulse P331, P332, P333, so that
The period that touch control display apparatus 100 receives touch drive signal Stou not will receive noise institute shadow caused by display specific pattern
It rings.
In above-described embodiment, touch-control control unit 110 generates three groups of trigger pulses P331, P332 and P333 as an example
Illustrate, however present disclosure is not limited thereto.In other embodiment, in order to which touch-control control unit is further turned up
110 return rate (i.e. shortening sweep spacing) can increase the number (such as more than four times) of trigger pulse, as long as can avoid driving
Noise on dynamic signal Stou, can further increase touch-control control unit 110 in the case where avoiding by influence of noise
Return rate.It, can also be in a synchronization signal if touch-control control unit 110 does not need high repayment rate in other embodiment
One or two trigger pulse is only generated in the fixed cycle TP1 of Ssync.
Fig. 6 is the further details stream that touch-control driving method 300 in Fig. 3 is shown according to the section Example of present disclosure
Cheng Tu, wherein driving method shown in fig. 6 300 and driving method shown in Fig. 4 300 the difference is that step S330 in Fig. 6
Include step S610 to S670.
Since step S310, S410, S420, S340 and S470 shown in fig. 6 have illustrated in figs. 3 and 4, no longer in this
It repeats.
Together referring to figure 6 and figure 7, wherein Fig. 7 is that touch-control drives in Fig. 6 according to shown by an embodiment of present disclosure
Method 300 illustrates example.
In step S620, delay time is set, in some embodiments, the delay time of step S620 setting is one
Initial delay time d1 (as shown in Figure 7), for example, can be set initial delay time d1 in step S620
For for 1ms.
In step S630, touch-control control unit 110 generates one according to lock-out pulse P11 and initial delay time d1
Trigger pulse P311.It is to illustrate with Fig. 5, the start time point of trigger pulse P311 is that lock-out pulse P11 adds delay time d1.
In step S640, touch-control control unit 110 is estimated by the starting point of trigger pulse P311 to subsequent disturbing pulse
Length between (or between low noise region) quiet zone between Pn any one (being disturbing pulse P211 in the embodiment of Fig. 7)
L11。
Then, step S650 is executed, touch-control control unit 110 judges between the quiet zone of trigger pulse P311 (or low
Sound section) whether length L11 be greater than the pulse length L2 of touch-control driving pulse P411.
At this point, due to trigger pulse P311 quiet zone between (or between low noise region) length L11 be not greater than touch-control
The pulse length L2 of driving pulse P411.
Therefore, step S660 is executed, touch-control control unit 110 calculates new delay time d2, and when according to new delay
Between d2 generate corresponding another trigger pulse P321, the details of this step be referred to Fig. 4 implementation it is vertical in step S450.
Step S640 is continued to execute, touch-control control unit 110, which is estimated, to be done by the starting point of trigger pulse P321 to subsequent
It disturbs between (or between low noise region) quiet zone between pulse Pn any one (being disturbing pulse P221 in the embodiment of Fig. 7)
Length L12.In step S650, touch-control control unit 110 judges between the quiet zone of trigger pulse P321 (or low noise region
Between) pulse length L2 of the length L12 still less than touch-control driving pulse P421, thus step S660 is executed again, touch-control control
Unit 110 calculates the delay time d3 for being different from delay time d2, and is generated according to delay time d3 and correspond to lock-out pulse P13
Another trigger pulse P331, and continue to execute step S640.
Step S640, touch-control control unit 110 are estimated by the starting point of trigger pulse P331 to subsequent disturbing pulse Pn
Length L13 between (or between low noise region) quiet zone between any one (being disturbing pulse P232 in the embodiment of Fig. 7).
In step S650, touch-control control unit 110 judges between the quiet zone of trigger pulse P331 (or low noise region
Between) pulse length L2 of the length L13 greater than touch-control driving pulse P431, step S670 is just executed, is to illustrate with Fig. 7, touch-control control
Unit 110 processed judges that noiseless siding-to-siding block length L13 is greater than pulse length L2, and then controls touch-control driving unit 120 in noiseless
Section (or between low noise region) generates touch-control driving pulse P431, and continues to generate touch-control driving pulse P432, P433, so that
The period that touch control display apparatus 100 receives touch drive signal Stou not will receive noise institute shadow caused by display specific pattern
It rings.
It is noted that pulse length L2 also refers to the touch-control driving pulse of the generation of touch-control driving unit 120
Most shortest pulse duration required for Ptou.If the duration of touch-control driving pulse Ptou is lower than pulse length L2, touching
The touch-control input sensing end RX of control display panel 140 will be unable to correctly to sense with the presence or absence of touch-control input or touch-control input
Correct position.In an embodiment, pulse length L2 can input resolution ratio with the size of touch-control display panel 140, touch-control
Or touch-control inputs renewal frequency and determines.
In conclusion present disclosure can show specific pattern in touch control display apparatus 100 via above-mentioned set-up mode
When prevent display specific pattern caused by influence of noise touch-control operation.
Although present disclosure is disclosed as above with embodiment, however, it is not to limit the invention, any this field
Technical staff, without departing from the spirit and scope of the present invention, when various variation and retouching, therefore protection of the invention can be made
Range is subject to view appended claims institute defender.
Claims (11)
1. a kind of touch-control driving method, includes:
Detect the synchronization signal from a touch control display apparatus；
The interference signal from the touch control display apparatus is detected, wherein the interference signal includes multiple disturbing pulses；
According to the synchronization signal and the disturbing pulse, multiple triggering arteries and veins are generated within a fixed cycle of the synchronization signal
Punching；And
Multiple touch-control driving pulses are generated according to the trigger pulse.
2. touch-control driving method as described in claim 1, wherein the interference signal of the detection from the touch control display apparatus
Step includes:
A touch-control input sensing end of a touch-control driving unit of the touch control display apparatus is detected with the presence or absence of the interference signal.
3. touch-control driving method as described in claim 1, wherein the synchronization signal includes one first lock-out pulse and one the
Two lock-out pulses, first lock-out pulse and second lock-out pulse are spaced each other the fixed cycle of the synchronization signal, according to
The step of generating the trigger pulse according to the synchronization signal and the disturbing pulse includes:
Estimate by first lock-out pulse ing extremely any one one first delay time of the disturbing pulse；And
One first triggering of the trigger pulse is generated plus the time point of first delay time according to first lock-out pulse
Pulse.
4. touch-control driving method as claimed in claim 3, wherein the touch-control driving method is generated according to first trigger pulse
One first touch-control driving pulse, which also includes:
During detecting the first touch-control driving pulse, if influenced by the interference signal；And
If being influenced during the first touch-control driving pulse by the interference signal, calculates and be different from the one of first delay time
Second delay time generated another trigger pulse of corresponding second lock-out pulse according to second delay time.
5. touch-control driving method as claimed in claim 4, also includes:
If being not affected by interference signal influence, the time point according to first trigger pulse during the first touch-control driving pulse
And the first-class by stages length of the fixed cycle, generate one second trigger pulse and the third triggering of the trigger pulse
Pulse.
6. touch-control driving method as claimed in claim 3, wherein according to described in the synchronization signal and disturbing pulse generation
The step of trigger pulse, includes:
The first-class by stages length of one switching cycle at a time point and data enabling signal according to first trigger pulse,
Generate one second trigger pulse and a third trigger pulse of the trigger pulse.
7. touch-control driving method as claimed in claim 3, wherein the touch-control driving method is generated according to first trigger pulse
One first touch-control driving pulse, which also includes:
A noiseless siding-to-siding block length of the estimation by the starting point of first trigger pulse to the disturbing pulse between any one；
Judge whether the noiseless siding-to-siding block length is greater than the pulse length of the first touch-control driving pulse；And
If the quiet zone length is less than the pulse length of the first touch-control driving pulse, calculates and be different from first delay time
One second delay time, another trigger pulse of corresponding second lock-out pulse is generated according to second delay time.
8. touch-control driving method as described in claim 1, wherein the interference signal shows that one is vertical in the touch control display apparatus
It is accordingly generated when striped (V-stripe) pattern.
9. touch-control driving method as described in claim 1, wherein the touch control display apparatus uses the reversion of polarity row, zigzag picture
Element layout and three grids (Tri-gate) dot structure.
10. touch-control driving method as described in claim 1, wherein the synchronization signal is a timing control of the touch control display apparatus
A horizontal synchronizing signal (Hsync) caused by unit processed.
11. a kind of touch control display apparatus, includes:
One touch-control display panel；
One display driver circuit；
One timing control unit, to provide a synchronization signal to the display driver circuit；
One touch-control control unit, couples the timing control unit, and the touch-control control unit is to execute:
Detect the synchronization signal；
The interference signal from the touch-control display panel is received, which includes multiple disturbing pulses；
Estimate a delay time, which corresponded between one of them time of the synchronization signal and the disturbing pulse
Every；
According to the synchronization signal and the delay time, multiple trigger pulses are generated within a fixed cycle of the synchronization signal；
And
Output corresponds to multiple touch-control driving pulses of the trigger pulse to the touch-control display panel；And
One touch-control driving unit couples the touch-control control unit, and to generate the touch-control driving according to the trigger pulse
Pulse.
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| CN109324717B (en) | 2022-03-29 |
| TW202018477A (en) | 2020-05-16 |
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