CN107248399B - Image element driving method - Google Patents
Image element driving method Download PDFInfo
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- CN107248399B CN107248399B CN201710617466.XA CN201710617466A CN107248399B CN 107248399 B CN107248399 B CN 107248399B CN 201710617466 A CN201710617466 A CN 201710617466A CN 107248399 B CN107248399 B CN 107248399B
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 230000005611 electricity Effects 0.000 claims description 6
- 239000004973 liquid crystal related substance Substances 0.000 abstract description 27
- 230000032683 aging Effects 0.000 abstract description 8
- 239000010408 film Substances 0.000 description 8
- 239000000758 substrate Substances 0.000 description 8
- 239000010409 thin film Substances 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 7
- 230000001052 transient effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3685—Details of drivers for data electrodes
- G09G3/3688—Details of drivers for data electrodes suitable for active matrices only
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/04—Maintaining the quality of display appearance
- G09G2320/043—Preventing or counteracting the effects of ageing
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses a kind of image element driving methods, it include: the data drive circuit for pixel electrode being provided with being electrically connected to the pixel electrode, the data drive circuit exports the data-signal comprising image information to the pixel electrode, the data-signal includes first time period in the charging time of each frame, second time period and third period, in the first time period, the data-signal is filled with stand-by voltage to the pixel electrode, the difference of the stand-by voltage and common voltage is not more than the difference of target voltage and the common voltage, jump amount between the voltage value for the data-signal that the stand-by voltage is used to reduce consecutive frame；In the second time period, the data-signal is filled with overdrive voltage to the pixel electrode；In the third period, the data-signal is filled with the target voltage to the pixel electrode.The pressure difference instantaneously jumped is reduced, the aging speed of film transistor device is slowed down, extends the liquid crystal display service life.
Description
Technical field
The present invention relates to field of display technology, more particularly, to a kind of image element driving method.
Background technique
Thin Film Transistor-LCD (Thin Film Transistor-LCD, TFT-LCD) is flown in recent years
It the development of speed and is widely applied, it is widely used in the display equipment of Portable movable electronic product, such as mobile phone, digital phase
The mobile products such as machine, palm PC, GPRS.During pixel electrode charging, the data-signal inputted to pixel electrode is
The square wave of standard, due between adjacent frame number input pixel electrode data-signal polarity on the contrary, and cataclysm height electricity
Pressure is transferred to pixel electrode and needs the regular hour, it may appear that the phenomenon that RC retardation ratio, i.e., is really input to the data of pixel electrode
Signal is not the square wave of standard, but the asymptotic traveling wave of exponential form, leads to the data-signal for actually entering pixel electrode
Original voltage value is often not achieved, influences the accuracy that picture is shown, causes picture colour cast, mistake punching etc. is abnormal.
In the prior art, in positive frame charging process, first increase by one and be higher than the overdrive voltage of target voltage, then restore
Target voltage, target voltage is the voltage that driving pixel electrode shows real image, in negative frame charging process, first increases by one
Lower than the overdrive voltage of target voltage, then restore target voltage.Although this method can improve the problem of pixel undercharge,
But this method is equivalent to the pressure difference that data-signal is improved in the data-signal switching of consecutive frame, due to the data of consecutive frame
Signal transient jump amount is excessive, i.e. the pressure difference of the overdrive voltage of the target voltage and a later frame of former frame is excessive, instantaneous big electricity
Stream causes film transistor device aging speed to accelerate, and the power consumption of power drives chip increases, and shortens the liquid crystal display service life,
Improve the use cost and maintenance cost of liquid crystal display.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of image element driving methods, to solve consecutive frame in the prior art
Data-signal coupling amount become larger and cause crosstalk, influence poor display effect of the liquid crystal display, film caused by transient high-current
Transistor device aging speed is accelerated, and the power consumption of power drives chip increases, and shortens the liquid crystal display service life, improves liquid crystal
The problem of use cost and maintenance cost of display.
In order to solve the above technical problems, the present invention provides a kind of image element driving method, image element driving method, the method packet
It includes:
Pixel electrode is provided and is electrically connected to the data drive circuit of the pixel electrode, the data drive circuit is to institute
The data-signal that pixel electrode output includes image information is stated,
The data-signal includes first time period, second time period and third period in the charging time of each frame,
In the first time period, the data-signal is filled with stand-by voltage, the stand-by voltage to the pixel electrode
It is not more than the difference of target voltage and the common voltage with the difference of common voltage, the stand-by voltage is for reducing consecutive frame
The data-signal voltage value between jump amount；
In the second time period, the data-signal is filled with overdrive voltage to the pixel electrode；
In the third period, the data-signal is filled with the target voltage to the pixel electrode.
In a kind of embodiment, in the second time period, the stand-by voltage cataclysm to the overdrive voltage.
In a kind of embodiment, in the third period, the overdrive voltage gradual change to the target voltage.
In a kind of embodiment, in the third period, the overdrive voltage cataclysm to the target voltage.
In a kind of embodiment, the size of the stand-by voltage is equal in magnitude with the target voltage.
In a kind of embodiment, duration of the first time period no more than the third period it is lasting when
Between.
In a kind of embodiment, duration of the first time period no more than the second time period it is lasting when
Between.
In a kind of embodiment, the data-signal includes odd number frame signal and even number frame signal, the odd number frame signal
Voltage value and the even number frame signal voltage value it is symmetrical relative to the common voltage.
In a kind of embodiment, during each frame image is shown in, it is filled with the data letter of the adjacent pixel electrode
Number polarity it is opposite.
In a kind of embodiment, scan drive circuit is provided, is exported in the data drive circuit to the pixel electrode
Before the data-signal comprising image information, the scanning circuit issues scanning signal and individually controls each described pixel
The on off operating mode of electrode and the data drive circuit.
Beneficial effects of the present invention are as follows: data-signal is filled with stand-by voltage to pixel electrode in first time period, preparation
Voltage and the data-signal of former frame are smaller in the difference of the target voltage of third period, specifically, the difference is not more than phase
Difference between the target voltage of adjacent frame, i.e. voltage jump amount between the data-signal of consecutive frame are not more than the data of consecutive frame
The difference of target voltage between signal reduces the pressure difference instantaneously jumped, reduces transient current size, slows down thin film transistor (TFT)
The aging speed of device, and the power consumption of power drives chip is reduced, extend the liquid crystal display service life, reduces liquid crystal display
Use cost and maintenance cost.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other obvious modes of texturing are obtained according to these attached drawings.
Fig. 1 is the arrangement schematic diagram of pixel electrode.
Fig. 2 is the data signal waveforms of the data drive circuit output for the image element driving method that the embodiment of the present invention one provides
Figure.
Fig. 3 is the practical data signal waveforms for being filled into pixel electrode of image element driving method that the embodiment of the present invention one provides
Figure.
Fig. 4 is the data signal waveforms that the data drive circuit of image element driving method provided by Embodiment 2 of the present invention exports
Figure.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Image element driving method provided in an embodiment of the present invention is applied to liquid crystal display, and liquid crystal display includes color film base
Plate, array substrate and the liquid crystal layer between color membrane substrates and array substrate, drive control circuit pass through control array substrate
The deflection state of the liquid crystal molecule of voltage difference control liquid crystal layer between color membrane substrates, to control liquid crystal display display figure
The content of picture.In a kind of embodiment, color membrane substrates are equipped with public electrode, the common electrical of drive control circuit public electrode
Pressure 50, array substrate are equipped with the pixel electrode 30 of multiple array arrangements, the pixel electricity of drive control circuit pixel electrode 30
Pressure.Specifically, drive control circuit includes data drive circuit 10 and scan drive circuit 20, data drive circuit in conjunction with Fig. 1
10 are electrically connected to each pixel electrode 30 by data line 12, and data drive circuit 10 includes to the output of pixel electrode 30
The pixel voltage of the data-signal control pixel electrode 30 of image information, scan drive circuit 20 are electrically connected to by scan line 22
The thin film transistor (TFT) of data line 12 and pixel electrode 30 is connected, scan drive circuit 20 to the grid of thin film transistor (TFT) by exporting
The connection or off-state of scanning signal control data line 12 and pixel electrode 30.
Referring to Fig. 2, the image element driving method that the embodiment of the present invention one provides includes:
Data drive circuit 10 is to data-signal of the output of pixel electrode 30 comprising image information, specifically, data-signal
Including odd number frame signal and even number frame signal, the voltage value of odd number frame signal and the voltage value of even number frame signal are relative to common electrical
Pressure 50 is symmetrical.In a kind of embodiment, the voltage value of odd number frame signal is higher than common voltage 50, i.e. odd number frame signal is positive frame letter
Numbers 42, the voltage value of even number frame signal is lower than common voltage 50, i.e. even number frame signal is negative frame signal 44.Other embodiments
In, the voltage value of odd number frame signal can also be lower than common voltage 50, i.e. odd number frame signal is negative frame signal 44, even number frame signal
Voltage value can also be higher than common voltage 50, i.e. even number frame signal is positive frame signal 42.Positive frame signal 42 and negative frame signal 44
It is alternately exported to pixel electrode 30, i.e., polarity reversion all occurs for the data-signal of each frame, is chronically to avoid liquid crystal molecule
Same deflection state and destroy self property, can not continue to deflect.
Data-signal includes first time period 101, second time period 102 and third period in the charging time of each frame
103, specifically, first time period 101, second time period 102 and third period 103 are the continuous period, and when first
Between section 101, second time period 102 and third period 103 be formed continuously the data-signal for showing a frame image.
In first time period 101, data-signal is filled with stand-by voltage 52, stand-by voltage 52 and common electrical to pixel electrode 30
The difference of pressure 50 is not more than the difference of target voltage 56 and common voltage 50, and first time period 101 is used to reduce the number of consecutive frame
It is believed that number voltage value between jump amount.Specifically, first time period 101 is the initial of the data-signal of one frame image of display
The voltage value of period, data-signal are changed to stand-by voltage 52 by the voltage value of common voltage 50.In positive frame signal 42, in advance
The voltage value of standby voltage 52 is greater than common voltage 50, and is not more than target voltage 56；In negative frame signal 44, stand-by voltage 52
Voltage value is less than common voltage 50, and is not less than target voltage 56.
In the present embodiment, the first time period 101 of present frame was connect after the third period 103 of former frame, when third
Between section 103 be filled with pixel electrode 30 voltage value be target voltage 56, that is, correspond to the virtual voltage of displaying target image.For example,
Present frame is negative frame, and former frame is positive frame, switches to when the current frame from former frame, the target of the voltage of data-signal from former frame
Voltage 56 is jumped to the stand-by voltage 52 of present frame, and the difference of the stand-by voltage 52 of the target voltage 56 and present frame of former frame is
The absolute value of the stand-by voltage 52 of the target voltage 56 and present frame of former frame and, due to present frame stand-by voltage 52 it is exhausted
It is not more than the target voltage 56 of present frame to value, before the voltage jump amount between former frame and the data-signal of present frame is not more than
The difference of target voltage 56 between one frame and the data-signal of present frame reduces the pressure difference instantaneously jumped, reduces instantaneous electricity
Size is flowed, slows down the aging speed of film transistor device, and reduce the power consumption of power drives chip, extends the liquid crystal display longevity
Life, reduces the use cost and maintenance cost of liquid crystal display.
In a kind of embodiment, the size of stand-by voltage 52 is equal in magnitude with target voltage 56.Specifically, each frame
The size of stand-by voltage 52 is equal in magnitude with the target voltage 56 of the frame, and data-signal is jumped from the target voltage 56 of former frame
To present frame stand-by voltage 52 when, the jump amount of voltage value is equal to the target voltage 56 of former frame and the target voltage of present frame
The maximum jump amount of 56 difference, i.e. data voltage is not affected by the influence of overdrive voltage 54, to not increase film crystal
The power consumption of tube device and power drives chip extends the liquid crystal display service life, reduces the use cost and dimension of liquid crystal display
Protect cost.
In second time period 102, data-signal is filled with overdrive voltage 54 to pixel electrode 30.Specifically, believing in positive frame
In numbers 42, the voltage value of overdrive voltage 54 is greater than the voltage value of target voltage 56, in negative frame signal 44, overdrive voltage 54
Voltage value be less than target voltage 56 voltage value.In conjunction with Fig. 3, overdrive voltage 54 improves data before target voltage 56
The voltage value of signal makes the data-signal for being actually filled into pixel electrode 30 improve RC retardation ratio phenomenon, is effectively improved charging not
The problem of foot.In the present embodiment, the voltage value of overdrive voltage 54 is individually determined by different grayscale.
In a kind of embodiment, in second time period 102,52 cataclysm of stand-by voltage to overdrive voltage 54.The mistake of cataclysm
The problem of driving voltage 54 improves RC retardation ratio phenomenon, is effectively improved undercharge.
In the third period 103, data-signal is filled with target voltage 56 to pixel electrode 30.Specifically, target voltage 56
It is for displaying target image, the voltage for being filled into pixel electrode 30 is actually needed in data drive circuit 10.Target voltage 56
Size needs target image to be shown to determine according to display equipment.Overdrive voltage 54 before target voltage 56 improves RC and prolongs
Slow phenomenon, so that target voltage 56 be made to be input to pixel electrode 30 faster.
In the present embodiment, in the third period 103,54 gradual change of overdrive voltage to target voltage 56.Number shown in Fig. 2
It is believed that number waveform diagram in be presented as the top rakes of a little three periods.Specifically, making the voltage value of data line 12 by overdrive voltage
54 leak off to target voltage 56, and transition is steady, not will increase overdrive voltage 54 and couple with the voltage of target voltage 56.
In the present embodiment, the duration of first time period 101 is not more than the duration of third period 103.It is a kind of
In embodiment, the duration of first time period 101 is not more than the duration of second time period 102.Stand-by voltage 52
Effect is the jump amount reduced between the data voltage of the image of consecutive frame.
Data-signal is filled with stand-by voltage 52, stand-by voltage 52 and former frame to pixel electrode 30 in first time period 101
Data-signal it is smaller in the difference of the target voltage 56 of third period 103, specifically, the difference be not more than consecutive frame mesh
Mark voltage 56 between difference, i.e., the voltage jump amount between the data-signal of consecutive frame no more than consecutive frame data-signal it
Between target voltage 56 difference, reduce the pressure difference instantaneously jumped, reduce transient current size, slow down film transistor device
Aging speed, and reduce power drives chip power consumption, extend the liquid crystal display service life, reduce the use of liquid crystal display
Cost and maintenance cost.
Referring to Fig. 4, image element driving method provided by Embodiment 2 of the present invention and the difference of embodiment one are, in third
Period 103,54 cataclysm of overdrive voltage to target voltage 56.It is adopted specifically, overdrive voltage 54 is changed to target voltage 56
The mode jumped with square wave, the mode of square wave jump design simply, control data-signal convenient for data drive circuit 10, reduce
The load of drive control circuit.
Data-signal is filled with stand-by voltage 52, stand-by voltage 52 and former frame to pixel electrode 30 in first time period 101
Data-signal it is smaller in the difference of the target voltage 56 of third period 103, specifically, the difference be not more than consecutive frame mesh
Mark voltage 56 between difference, i.e., the voltage jump amount between the data-signal of consecutive frame no more than consecutive frame data-signal it
Between target voltage 56 difference, reduce the pressure difference instantaneously jumped, reduce transient current size, slow down film transistor device
Aging speed, and reduce power drives chip power consumption, extend the liquid crystal display service life, reduce the use of liquid crystal display
Cost and maintenance cost.
In the present embodiment, data-signal includes odd number frame signal and even number frame signal, the voltage value and idol of odd number frame signal
The voltage value of number frame signal is symmetrical relative to common voltage 50.In a kind of embodiment, the voltage value of odd number frame signal is higher than public affairs
Common voltage 50, i.e. odd number frame signal are positive frame signal 42, and the voltage value of even number frame signal is lower than common voltage 50, i.e. even frame is believed
Number be negative frame signal 44.In other embodiments, the voltage value of odd number frame signal can also be lower than common voltage 50, i.e. odd-numbered frame
Signal is negative frame signal 44, and the voltage value of even number frame signal can also be higher than common voltage 50, i.e. even number frame signal is positive frame letter
Numbers 42.Positive frame signal 42 replaces with negative frame signal 44 to be exported to pixel electrode 30, i.e., polarity all occurs for the data-signal of each frame
Reversion, to avoid liquid crystal molecule is chronically at same deflection state and destroys self property, can not continue to deflect.
In the present embodiment, during each frame image is shown in, it is filled with the polarity phase of the data-signal of adjacent pixel electrode 30
Instead.Specifically, the polarity of data-signal of the adjacent pixel electrode 30 in odd-numbered frame on the contrary, adjacent pixel electrode 30 in even number
The polarity of the data-signal of frame is opposite.The polarity of the data-signal of adjacent pixel electrode 30 on the contrary can be to avoid adjacent pixel
The mutual crosstalk of data-signal between electrode 30, improves the display effect of liquid crystal display.
In the present embodiment, scan drive circuit 20 is provided, includes figure to the output of pixel electrode 30 in data drive circuit 10
As information data-signal before, scanning circuit issue scanning signal individually control each pixel electrode 30 and data-driven electricity
The on off operating mode on road 10.Specifically, array substrate further includes thin film transistor (TFT), scan drive circuit 20 is electrically connected by scan line 22
It is connected to the grid of thin film transistor (TFT), pixel electrode 30 and data line 12 are respectively electrically connected to source electrode or the drain electrode of thin film transistor (TFT).
Scanning circuit issues scanning signal and individually controls the on off operating mode of each pixel electrode 30 and data drive circuit 10, to control
Data-signal processed can be filled with pixel electrode 30.
Data-signal is filled with stand-by voltage 52, stand-by voltage 52 and former frame to pixel electrode 30 in first time period 101
Data-signal it is smaller in the difference of the target voltage 56 of third period 103, specifically, the difference be not more than consecutive frame mesh
Mark voltage 56 between difference, i.e., the voltage jump amount between the data-signal of consecutive frame no more than consecutive frame data-signal it
Between target voltage 56 difference, reduce the pressure difference instantaneously jumped, reduce transient current size, slow down film transistor device
Aging speed, and reduce power drives chip power consumption, extend the liquid crystal display service life, reduce the use of liquid crystal display
Cost and maintenance cost.
Above disclosed is only several preferred embodiments of the present invention, cannot limit the power of the present invention with this certainly
Sharp range, those skilled in the art can understand all or part of the processes for realizing the above embodiment, and weighs according to the present invention
Benefit requires made equivalent variations, still belongs to the scope covered by the invention.
Claims (10)
1. a kind of image element driving method, which is characterized in that the described method includes:
Pixel electrode is provided and is electrically connected to the data drive circuit of the pixel electrode, the data drive circuit is to the picture
Plain electrode output includes the data-signal of image information,
The data-signal includes first time period, second time period and third period in the charging time of each frame,
In the first time period, the data-signal is filled with stand-by voltage, the stand-by voltage and public affairs to the pixel electrode
The difference of common voltage is not more than the difference of target voltage and the common voltage, and the stand-by voltage is used to reduce the institute of consecutive frame
State the jump amount between the voltage value of data-signal；
In the second time period, the data-signal is filled with overdrive voltage to the pixel electrode；
In the third period, the data-signal is filled with the target voltage to the pixel electrode.
2. image element driving method according to claim 1, which is characterized in that in the second time period, the preparation electricity
The overdrive voltage is changed at the beginning of being pressed in the second time period.
3. image element driving method according to claim 2, which is characterized in that described to overdrive in the third period
Voltage gradient is to the target voltage.
4. image element driving method according to claim 2, which is characterized in that described to overdrive in the third period
Voltage is changed to the target voltage at the beginning of third period.
5. image element driving method according to claim 3 or 4, which is characterized in that the size of the stand-by voltage with it is described
Target voltage it is equal in magnitude.
6. image element driving method according to claim 5, which is characterized in that the duration of the first time period is little
In the duration of the third period.
7. image element driving method according to claim 6, which is characterized in that the duration of the first time period is little
In the duration of the second time period.
8. image element driving method according to claim 1, which is characterized in that the data-signal include odd number frame signal with
The voltage value of even number frame signal, the voltage value of the odd number frame signal and the even number frame signal is relative to the common voltage pair
Claim.
9. image element driving method according to claim 8, which is characterized in that in each frame image, be filled with adjacent described
The polarity of the data-signal of pixel electrode is opposite.
10. image element driving method according to claim 1, which is characterized in that scan drive circuit is provided, in the data
Before driving circuit exports the data-signal comprising image information to the pixel electrode, the scan drive circuit is issued
Scanning signal individually controls the on off operating mode of each pixel electrode and the data drive circuit.
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| CN109064989A (en) * | 2018-09-11 | 2018-12-21 | 惠科股份有限公司 | Driving device and display device thereof |
| CN110459153A (en) * | 2019-06-10 | 2019-11-15 | 惠科股份有限公司 | Aging test circuit and aging test method of display panel and display device |
| CN112799538B (en) * | 2021-01-19 | 2024-03-15 | 京东方科技集团股份有限公司 | Touch driving method, touch driving device and touch display device |
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| US9041694B2 (en) * | 2011-01-21 | 2015-05-26 | Nokia Corporation | Overdriving with memory-in-pixel |
| CN102208177B (en) * | 2011-06-24 | 2013-04-24 | 深圳市华星光电技术有限公司 | Liquid-crystal display device and signal driving method thereof |
| CN104810001B (en) * | 2015-05-14 | 2017-11-10 | 深圳市华星光电技术有限公司 | The drive circuit and driving method of a kind of liquid crystal display panel |
| CN106683630B (en) * | 2016-12-29 | 2018-06-12 | 惠科股份有限公司 | Pixel charging method and circuit |
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