CN107132948A - Touching display screen driving method - Google Patents
Touching display screen driving method Download PDFInfo
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- CN107132948A CN107132948A CN201710297023.7A CN201710297023A CN107132948A CN 107132948 A CN107132948 A CN 107132948A CN 201710297023 A CN201710297023 A CN 201710297023A CN 107132948 A CN107132948 A CN 107132948A
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- display screen
- touching display
- pixel
- touch
- driving
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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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of El Displays (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention provides a kind of touching display screen driving method, during every frame is shown, when LED control signal controls pixel darkly state, carry out touch-control driving, driving pixel light emission is avoided herein to be carried out simultaneously with carrying out touch-control driving, thus just signal between the two can be avoided to interfere, so that the problem of touch-control sensing mistake or excessive noise just can be avoided, improves the display effect of touching display screen.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of touching display screen driving method.
Background technology
With developing rapidly for Display Technique, touching display screen (Touch Screen Panel) is gradually throughout people
Life in.At present, touching display screen can be divided into according to composition structure：External hanging type touching display screen (Out Cell Touch
Panel), covering surface-type touching display screen (On Cell Touch Panel) and embedded touch display screen (In Cell
Touch Panel).Wherein, external hanging type touching display screen refers to that touch sensing (TP Sensor) is arranged on protective glass
Touching display screen between (Cover Lens) and polaroid (Polarizer)；Covering surface-type touching display screen refers to touch-control
Sensor is arranged on touching display screen of the cover-plate glass (Glass) between polaroid；Embedded touch display screen refers to touch-control
Sensor is embedded into the touching display screen in OLED pixel.
Touch control electrode is embedded in inside display screen by embedded touch display screen, and the overall thickness of module can be both thinned,
The cost of manufacture of touching display screen can be substantially reduced again, so as to be favored by major panel producers.But, embedded touch shows
During the driving of display screen, the problem of often occurring touch-control sensing mistake or excessive noise.Thus, how to reduce embedded
Touch-control sensing mistake or noise during the driving of touching display screen, into urgently to be resolved hurrily one of those skilled in the art
Problem.
The content of the invention
It is an object of the invention to provide a kind of touching display screen driving method, to solve touching display screen in the prior art
Driving during, often occur touch-control sensing mistake or the problem of excessive noise.
In order to solve the above technical problems, the present invention provides a kind of touching display screen driving method, the touching display screen drives
Dynamic method includes：During every frame is shown, when LED control signal controls pixel darkly state, touch-control driving is carried out.
Optionally, in described touching display screen driving method, darkly state includes LED control signal control pixel：When
When transistor in pixel-driving circuit is P-type transistor, LED control signal output high level；Or, when pixel driver electricity
When transistor in road is N-type transistor, LED control signal output low level.
Optionally, in described touching display screen driving method, during every frame is shown, when LED control signal control
Pixel processed darkly state when, carry out touch-control driving include：During every frame is shown, carry out once or multiple touch-control drives, its
In, during any a line of every frame is shown, when the transistor in pixel-driving circuit is P-type transistor, light emitting control
Signal output high level, carries out touch-control driving；Or, when the transistor in pixel-driving circuit is N-type transistor, light control
Signal output low level processed, carries out touch-control driving.
Optionally, in described touching display screen driving method, the touching display screen driving method also includes judging
The working condition of touching display screen, obtains the touching display screen and is in the first working condition or the second working condition, wherein,
The touch frequency of first working condition is more than the touch frequency of second working condition.
Optionally, in described touching display screen driving method, during every frame is shown, when the touching display screen
During in the first working condition, the number of times for carrying out touch-control driving is more than when the touching display screen is in the second working condition,
Carry out the number of times of touch-control driving.
Optionally, in described touching display screen driving method, during every frame is shown, when LED control signal control
Pixel processed darkly state when, carry out touch-control driving include：During the first row of every frame is shown, when LED control signal controls picture
During plain darkly state, touch-control driving is carried out.
Optionally, in described touching display screen driving method, the touching display screen driving method also includes：
During the display of every a line of every frame, first pixel is initialized, data write-in then is carried out to pixel,
Then LED control signal drives pixel light emission；Wherein, LED control signal driving pixel light emission is in carrying out touch-control driving
The different periods.
Optionally, in described touching display screen driving method, LED control signal driving pixel light emission includes：Work as picture
When transistor in plain drive circuit is P-type transistor, LED control signal output low level；Or, work as pixel-driving circuit
In transistor be N-type transistor when, LED control signal output high level.
Optionally, in described touching display screen driving method, pixel is initialized and data are carried out to pixel
Write-in is in the identical period with carrying out touch-control driving.
Optionally, in described touching display screen driving method, the driving method of the touching display screen is used to drive
Embedded touch display screen.
In the touching display screen driving method that the present invention is provided, during every frame is shown, when LED control signal control
Pixel processed darkly state when, carry out touch-control driving, i.e., herein avoid driving pixel light emission with carry out touch-control driving simultaneously progress, by
This just can be avoided signal between the two from interfering, so that the problem of touch-control sensing mistake or excessive noise just can be avoided,
Improve the display effect of touching display screen.
Brief description of the drawings
Fig. 1 is the structural representation of embedded touch display screen；
Fig. 2 is the structural representation for covering surface-type touching display screen；
Fig. 3 is the structural representation of external hanging type touching display screen；
Fig. 4 is the time diagram of the touching display screen driving method of the embodiment of the present invention.
Embodiment
Further detailed is made to touching display screen driving method proposed by the present invention below in conjunction with the drawings and specific embodiments
Explanation.According to following explanation and claims, advantages and features of the invention will become apparent from.It should be noted that, accompanying drawing is adopted
With very simplified form and using non-accurately ratio, only to convenience, the embodiment of the present invention is lucidly aided in illustrating
Purpose.
In the prior art, during the driving of embedded touch display screen, often occur touch-control sensing mistake or
The problem of noise is excessive.Inventor have extensively studied and be found after this problem, and its producing cause is：Because embedded touch is aobvious
Touch sensing is embedded into OLED pixel by display screen so that the distance of the image element circuit of touch sensing and OLED pixel compared with
Closely, the touching display screen structural representation shown in Fig. 1 to Fig. 3 is specifically referred to, wherein, Fig. 1 schematically illustrates embedded
The structure of touching display screen, Fig. 2 schematically illustrates the structure of covering surface-type touching display screen, and Fig. 3 is shown schematically
The structure of external hanging type touching display screen.Shown in Fig. 1 to Fig. 3, compared to covering surface-type touching display screen and plug-in
Formula touching display screen, in embedded touching display screen, the distance of the image element circuit of touch sensing and OLED pixel near will be obtained
It is many.Thus, it is non-because electric current is continually changing on OLED screen body negative electrode when driving pixel light emission simultaneously and carrying out touch-control driving
The signal often easily caused between the two is interfered, so that the problem of causing touch-control sensing mistake or excessive noise.
Further, it is contemplated that if the set of time for carrying out touch-control driving is expert at blanking period, that is, show drive control
Signal all without stage when, will greatly reduction touching display screen picture scan frequency, so that display will be reduced greatly
Effect.
Base this, present applicant proposes a kind of touching display screen driving method, its core concept is, every frame show process
In, when LED control signal controls pixel darkly state, touch-control driving is carried out, i.e., avoids driving pixel light emission herein with carrying out
Touch-control driving is carried out simultaneously, thus just signal between the two can be avoided to interfere, so that touch-control sensing mistake just can be avoided
Or noise it is excessive the problem of, improve the display effect of touching display screen.
In the embodiment of the present application, the driving method of the touching display screen is used to drive embedded touch display screen；
In the other embodiment of the application, the driving method of the touching display screen can be used for driving external hanging type touching display screen with
And covering surface-type touching display screen.Although, during the driving of existing external hanging type touching display screen or existing
During the driving for covering surface-type touching display screen, there is that very big touch-control sensing mistake or noise are excessive to ask
Topic, still, the display of its touching display screen driving method that can be still provided with the application driving touching display screen and touch-control.
Further, when the transistor in pixel-driving circuit be p-type, LED control signal control pixel darkly state when,
LED control signal exports high level；When the transistor in pixel-driving circuit is N-type, LED control signal control pixel is darkly
During state, LED control signal output low level.In the other embodiment of the application, when transistor is p-type, pass through luminous control
Signal output high level processed is to cause pixel (display picture in other words) darkly state, now, LED control signal driving pixel hair
Light exports low level by LED control signal and realized.In the other embodiment of the application, when the crystalline substance in pixel-driving circuit
Body pipe be N-type when, LED control signal control pixel darkly state when, LED control signal output low level, then now, accordingly
, LED control signal drives pixel light emission to export high level by LED control signal and realized.
In the embodiment of the present application, by taking the P-type transistor in pixel-driving circuit as an example, during every frame is shown, when
LED control signal control pixel darkly state when, carry out touch-control driving include：During every frame is shown, carry out once or many
Secondary touch-control driving, wherein, during any a line of every frame is shown, LED control signal output high level carries out touch-control drive
It is dynamic.I.e. here, when the number of times that touch-control drives is one time, occurring in a line of a frame；When the number of times that touch-control drives is multiple
When, occur in the multirow of a frame, easy to know, the multirow of a frame is asynchronous on the display time.For example, with 1280 row pictures
Exemplified by element, when the number of times that touch-control drives is one time, can occur in arbitrary a line, to work as light emitting control in 1280 row pixels
During signal output high level, touch-control driving is carried out, specifically such as, (LED control signal exports high level to the 1st row i.e. in the 1st row
When, carry out touch-control driving), the 5th row, the 20th row, the 200th row, the 550th row, the 700th row, the 900th row or the 1280th row etc..
And for example, by taking 1280 row pixels as an example, when touch-control drive number of times for it is multiple when, can in 1280 row pixels arbitrary multirow
In, when LED control signal exports high level, carry out touch-control driving, specifically such as, the row of the 1st, 3,5,7 ... and 1279；Or
Such as, the row of the 1st, 5,10,15,20 ... and 1280；Again or such as, the 1st row, the 5th row, the 20th row, the 200th row, the 550th row, the 700th
Row, the 900th row and the 1280th row etc..
It is preferred that, during every frame is shown, when LED control signal controls pixel darkly state, carry out touch-control driving bag
Include：During the first row of every frame is shown, when LED control signal controls pixel darkly state, touch-control driving is carried out.That is, when
When the number of times of touch-control driving is one time, occur in the first row of a frame；When the number of times that touch-control drives is multiple, occur one
In the multirow of frame, and the multirow includes the first row.
Preferably, the touching display screen driving method also includes the working condition for judging touching display screen, obtain described
Touching display screen is in the first working condition or the second working condition, wherein, the touch frequency of first working condition is big
It is (described i.e., it is possible to think that first working condition is the state that frequently touches in the touch frequency of second working condition
Second working condition is the non-state frequently touched).Wherein, judge that the working condition of touching display screen can occur to touch at certain
Driven simultaneously before control driving or after the driving of certain touch-control or with certain shake-up, the application is not construed as limiting to this.Enter one
Step, the judgement for the working condition of touching display screen can be realized by devices such as processors.Here, aobvious for touch-control
The judgement of the working condition of display screen can for example judge that such as touching display screen is worked as according to the current display state of touching display screen
It is preceding that image or video display interface is shown, then judge that the touching display screen is in the second working condition, touching display screen is worked as
It is preceding that interface is shown, then judge that the touching display screen is in first working condition etc..
Further, according to the different working conditions of the touching display screen, during every frame is shown, it can perform
The touch-control driving of different number of times.Preferably, during every frame is shown, when the touching display screen is in the first working condition
When, the number of times for carrying out touch-control driving is more than when the touching display screen is in the second working condition, carries out time of touch-control driving
Number (that is, when the touching display screen is in the state frequently touched, then during every frame is shown, carries out more multiple touch
Control driving；And when the touching display screen be in it is non-frequently touch state when, then during every frame show, carry out less secondary
Touch-control driving).
Further, the touching display screen driving method also includes：It is first right during the display of every a line of every frame
Pixel is initialized, and then carries out data write-in to pixel, then LED control signal driving pixel light emission；Wherein, light
Control signal drives pixel light emission to be in the different periods from carrying out touch-control driving.Specifically, referring to Fig. 4, it is this hair
The time diagram of the touching display screen driving method of bright embodiment.In the embodiment of the present application, the touching display screen driving
Method may include：T1 stages, (being enabled by initializing signal S1 low levels) initializes to pixel；The t2 stages, to pixel
Data write-in is carried out, (being enabled by enabling signal S2 low levels, data-signal Vdata is provided to pixel)；And the t3 stages, light
Control signal (EM signals) drives pixel light emission, i.e. display picture.In the embodiment of the present application, LED control signal driving pixel
It is luminous to include LED control signal output low level.
Please continue to refer to Fig. 4, in the embodiment of the present application, pixel is initialized and pixel is carried out data write-in with
Carry out touch-control driving and be in the identical period.I.e. here, carrying out touch-control driving, produce touch-control pumping signal TP t4 stages with
T1 stages and t2 stages are in the identical period.In the other embodiment of the application, touch-control driving is carried out, touch-control is produced and swashs
The identical period can be only in the t1 stages or only be in the identical period with the t2 stages by encouraging the t4 stages of signal.
Accordingly, when the transistor in pixel-driving circuit is N-type transistor, the touching display screen driving method
It may include：T1 ' the stages, (in this t1 stage in can accordingly referring to Fig. 4, difference was high level when being only that t1 ' stages, accordingly
It is then low level in other stages of this signal), (being enabled by initializing signal S1 high level) initializes to pixel；
In the t2 ' stages (in this t2 stage in can accordingly referring to Fig. 4, difference is high level when being only that t2 ' stages), line number is entered to pixel
According to write-in, (being enabled by enabling signal S2 high level, data-signal Vdata is provided to pixel)；And t3 ' the stages (herein can phase
The t3 stages in Fig. 4 should be referred to, difference is high level when being only that t3 ' stages), LED control signal (EM signals) driving pixel
Light, i.e. display picture.Now, LED control signal driving pixel light emission includes LED control signal output high level.
Likewise, when being initialized to pixel and pixel progress data write-in driven in identical with carrying out touch-control
Between section.That is, carry out touch-control driving, produce touch-control pumping signal TP the t4 ' stages (in this t4 stage in can accordingly referring to Fig. 4,
Difference is low level when being only that t4 ' stages, that is, takes low level effective) it is in the identical period with t1 stages and t2 stages.
As fully visible, in the touching display screen driving method that the present invention is provided, during every frame is shown, when luminous control
Signal processed control pixel darkly state when, carry out touch-control driving, i.e., avoid driving pixel light emission herein with carrying out touch-control driving together
Shi Jinhang, thus just can avoid signal between the two from interfering, so that touch-control sensing mistake or noise mistake just can be avoided
Big the problem of, improve the display effect of touching display screen.
Foregoing description is only the description to present pre-ferred embodiments, not to any restriction of the scope of the invention, this hair
Any change, modification that the those of ordinary skill in bright field does according to the disclosure above content, belong to the protection of claims
Scope.
Claims (10)
1. a kind of touching display screen driving method, it is characterised in that the touching display screen driving method includes：Shown in every frame
During, when LED control signal controls pixel darkly state, carry out touch-control driving.
2. touching display screen driving method as claimed in claim 1, it is characterised in that LED control signal control pixel is darkly
State includes：When the transistor in pixel-driving circuit is P-type transistor, LED control signal output high level；Or, work as picture
When transistor in plain drive circuit is N-type transistor, LED control signal output low level.
3. touching display screen driving method as claimed in claim 2, it is characterised in that during every frame is shown, when luminous
Control signal control pixel darkly state when, carry out touch-control driving include：During every frame is shown, once or repeatedly touch
Control driving, wherein, during any a line of every frame is shown, when the transistor in pixel-driving circuit is P-type transistor,
LED control signal exports high level, carries out touch-control driving；Or, when the transistor in pixel-driving circuit is N-type transistor
When, LED control signal output low level carries out touch-control driving.
4. touching display screen driving method as claimed in claim 3, it is characterised in that the touching display screen driving method is also
Working condition including judging touching display screen, obtains the touching display screen and is in the first working condition or the second work shape
State, wherein, the touch frequency of first working condition is more than the touch frequency of second working condition.
5. touching display screen driving method as claimed in claim 4, it is characterised in that during every frame is shown, when described
When touching display screen is in the first working condition, the number of times for carrying out touch-control driving is more than when the touching display screen is in the second work
When making state, the number of times of touch-control driving is carried out.
6. touching display screen driving method as claimed in claim 3, it is characterised in that during every frame is shown, when luminous
Control signal control pixel darkly state when, carry out touch-control driving include：During the first row of every frame is shown, work as light emitting control
Signal control pixel darkly state when, carry out touch-control driving.
7. such as touching display screen driving method according to any one of claims 1 to 6, it is characterised in that the touch-control is shown
Screen driving method also includes：
During the display of every a line of every frame, first pixel is initialized, data write-in then is carried out to pixel, then
LED control signal drives pixel light emission；Wherein, LED control signal driving pixel light emission is from carrying out touch-control driving in different
Period.
8. touching display screen driving method as claimed in claim 7, it is characterised in that LED control signal drives pixel light emission
Including：When the transistor in pixel-driving circuit is P-type transistor, LED control signal output low level；Or, work as pixel
When transistor in drive circuit is N-type transistor, LED control signal output high level.
9. touching display screen driving method as claimed in claim 7, it is characterised in that initialized to pixel and to pixel
Carry out data write-in and be in the identical period with carrying out touch-control driving.
10. such as touching display screen driving method according to any one of claims 1 to 6, it is characterised in that the touch-control is shown
The driving method of screen is used to drive embedded touch display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710297023.7A CN107132948A (en) | 2017-04-28 | 2017-04-28 | Touching display screen driving method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710297023.7A CN107132948A (en) | 2017-04-28 | 2017-04-28 | Touching display screen driving method |
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| Publication Number | Publication Date |
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| CN107132948A true CN107132948A (en) | 2017-09-05 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710297023.7A Pending CN107132948A (en) | 2017-04-28 | 2017-04-28 | Touching display screen driving method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111489692A (en) * | 2019-01-25 | 2020-08-04 | 上海和辉光电有限公司 | Organic light emitting diode display device and driving method thereof |
| CN112259051A (en) * | 2020-11-11 | 2021-01-22 | 上海天马有机发光显示技术有限公司 | Organic light emitting display panel and display device |
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| US20140253493A1 (en) * | 2013-03-07 | 2014-09-11 | Samsung Display Co., Ltd. | Display device integrated with touch screen panel and driving method thereof |
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| CN111489692A (en) * | 2019-01-25 | 2020-08-04 | 上海和辉光电有限公司 | Organic light emitting diode display device and driving method thereof |
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| CN112259051A (en) * | 2020-11-11 | 2021-01-22 | 上海天马有机发光显示技术有限公司 | Organic light emitting display panel and display device |
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