CN106297693A - Liquid Crystal Display And Method For Driving - Google Patents
Liquid Crystal Display And Method For Driving Download PDFInfo
- Publication number
- CN106297693A CN106297693A CN201610740732.3A CN201610740732A CN106297693A CN 106297693 A CN106297693 A CN 106297693A CN 201610740732 A CN201610740732 A CN 201610740732A CN 106297693 A CN106297693 A CN 106297693A
- Authority
- CN
- China
- Prior art keywords
- scanning signal
- persistent period
- liquid crystal
- crystal display
- polarity inversion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- G09G3/3614—Control of polarity reversal in general
-
- 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
Abstract
The open a kind of Liquid Crystal Display And Method For Driving of the present invention.Liquid crystal display includes: a plurality of data lines；Multi-strip scanning line, arranged in a crossed manner with a plurality of data lines；Data driver, for providing data signal in polarity inversion mode to a plurality of data lines；Scanner driver, for providing scanning signal to multi-strip scanning line successively, and adjusts the persistent period of scanning signal according to the polarity inversion of data signal.The present invention can improve horizontal band sense during liquid crystal display display, improves picture quality.
Description
Technical field
The present invention relates to technical field of liquid crystal display, in particular to a kind of liquid crystal display and this liquid crystal display
Driving method.
Background technology
Liquid crystal display (Liquid Crystal Display, LCD), due to advantages such as its lightening and low-power consumption, is mesh
Main flow display device in front market.Current liquid crystal display generally uses polarity inversion mode to be driven, with 2 line reversions
As a example by driving (2line inversion), i.e. carry out turning of a positive-negative polarity every the persistent period driving two scan lines
Change, shown in Fig. 1, in data signal VDDipole inversion time point 11,12 between, pixel has two kinds of charging behaviors:
The first is charging at once after polarity inversion, opens in scan line and is i.e. transfused to scan signal VSTime, data signal VDDue to RC
(Resistance Capacitance, resistance-capacitance) conversion not yet arrives target voltage Vlc, cause the actual reception of data wire
Voltage V1Less than target voltage Vlc, now pixel can show concealed wire.The second is every driving a scan line after polarity inversion
Persistent period carry out discharge and recharge, due to drive previous bar scan line scanning signal VSPolarity with drive current scan line
Scanning signal VSPolarity is identical, therefore the voltage V of the actual reception of data wire2Close to target voltage Vlc, now pixel can show
Bright line.
From the foregoing, under current inversion driving mode, the mutual arrangement of bright line and concealed wire can cause liquid crystal display
Device shows have horizontal band sense, affects picture quality.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of Liquid Crystal Display And Method For Driving, it is possible to improve liquid crystal display
Horizontal band sense during device display, improves picture quality.
A kind of liquid crystal display that the embodiment of the present invention provides, including: a plurality of data lines；Multi-strip scanning line, with a plurality of number
Arranged in a crossed manner according to line；Data driver, for providing data signal in polarity inversion mode to a plurality of data lines；Turntable driving
Device, for providing scanning signal to multi-strip scanning line successively, and adjusts holding of scanning signal according to the polarity inversion of data signal
The continuous time.
Wherein, the persistent period of at least partly scanning signal that scanner driver provides is different from each other.
Wherein, data driver provides data signal to a plurality of data lines, wherein in data signal with n line inversion mode
Between adjacent twice polarity inversion, scanner driver provides scanning signal successively to n bar scan line, and n more than or equal to 2 is just
Integer.
Wherein, after a polarity inversion of data signal, continuing of first scanning signal that scanner driver provides
Time is more than the persistent period of remaining the scanning signal before polarity inversion next time.
Wherein, the persistent period of remaining scanning signal described is mutually the same or tapers into.
The driving method of a kind of liquid crystal display that the embodiment of the present invention provides, comprises determining that the polarity of data signal is anti-
Turn the moment；Scanner driver adjusts the persistent period of scanning signal according to the polarity inversion moment.
Wherein, the persistent period of at least partly scanning signal that scanner driver provides is different from each other.
Wherein, data signal carries out polarity inversion with n line inversion mode, and wherein adjacent twice polarity in data signal is anti-
There is n scanning signal between Zhuaning, n is the positive integer more than or equal to 2.
Wherein, the persistent period of first scanning signal after a polarity inversion of data signal is more than once pole
The persistent period of remaining the scanning signal before sex reversal.
Wherein, the persistent period of remaining scanning signal is mutually the same or tapers into.
Beneficial effect: the embodiment of the present invention adjusts the persistent period of scanning signal according to the polarity inversion of data signal,
Reduce the impact of RC conversion so that the electricity of the actual reception of data wire in the charging stage after polarity inversion after polarity inversion as far as possible
Crimping is bordering on target voltage, thus improves horizontal band sense when liquid crystal display shows as far as possible, improves picture quality.
Accompanying drawing explanation
Fig. 1 is the driving schematic diagram of the liquid crystal display of an embodiment of the prior art；
Fig. 2 is the dot structure schematic diagram of the liquid crystal display of one embodiment of the invention；
Fig. 3 is the driving schematic diagram of the liquid crystal display of one embodiment of the invention；
Fig. 4 is the driving schematic diagram of the liquid crystal display of another embodiment of the present invention；
Fig. 5 is the schematic flow sheet of driving method one embodiment of the liquid crystal display of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the skill to each exemplary embodiment provided by the present invention
Art scheme is clearly and completely described.In the case of not conflicting, the feature in each embodiment following and embodiment can
To be mutually combined.
Refer to Fig. 2, for the dot structure schematic diagram of the liquid crystal display of one embodiment of the invention.Shown liquid crystal display
Including a plurality of data lines 21 arranged along column direction, the multi-strip scanning line 22 arranged in the row direction and by scan line 22 and data
Multiple pixels 23 of line 21 definition arranged in a crossed manner.Each pixel 23 connects a corresponding data line 21 and a scan line 22,
Each bar scan line 22 is connected to scanner driver 24 and scans signal to provide each pixel 23, and pieces of data line 21 is connected to data
Driver 25 is to provide data signal to each pixel 23.
Wherein, scanner driver 24 is for providing scanning signal, specifically, scanner driver to multi-strip scanning line 22 successively
Scan line 22 that 24 is certain a line provides scanning signal, be positioned at same a line thin film transistor (TFT) (Thin Film Transistor,
TFT) it is simultaneously open, and for the scan line 22 offer scanning signal of next line after certain time so that it is positioned under this
The thin film transistor (TFT) of a line is simultaneously open, follow up scan driving process the like.Data driver 25 is for anti-with polarity
The mode that turns provides data signal to a plurality of data lines 21.
Being compared to prior art, the purpose of the embodiment of the present invention is: scanner driver 24 is additionally operable to according to described number
The polarity inversion of the number of it is believed that adjusts the persistent period of scanning signal.Based on this, the embodiment of the present invention can be in data signal polarity
Extend the persistent period of first scanning signal so that the charging stage after the polarity inversion of data signal after reversion as far as possible
In, the actual voltage (data signal) received of data wire 21 is close to target voltage, thus improves liquid crystal display as far as possible and show
Time horizontal band sense, improve picture quality.
In order to preferably be different from prior art, provide data signal with 2 line inversion modes to a plurality of data lines 21 below
As a example by be described.Refer to Fig. 3, for the driving schematic diagram of the liquid crystal display of one embodiment of the invention.As it is shown on figure 3,
Data signal VD1Adjacent twice polarity inversion between, the such as positive polarity shown in figure is converted to reversed line 31 He of negative polarity
Negative polarity is converted between the reversed line 32 of positive polarity, and scanner driver 24 provides scanning signal V successively to 2 scan linesS1.Tool
Body ground, in data signal VD1A polarity inversion after, scanner driver 24 provide first scanning signal VS1Lasting time
Between t1More than another scanning signal V before polarity inversion next timeS1Persistent period t2.Be compared to shown in Fig. 1 is existing
Technology, owing to extending first scanning signal V after being originally implemented in polarity inversionS1Persistent period t1, reduce the shadow of RC conversion
Ring so that in data signal VD1Polarity inversion after charging stage (persistent period t1In), the actual electricity received of data wire 21
Pressure V3Close to target voltage Vlc, now at the persistent period t driving Article 1 scan line 221In, bright shown by pixel 23
Degree is more than the brightness of prior art, the scanning signal V of another scan line 22S1The scanning letter of polarity and Article 1 scan line 22
Number VS1Polarity identical, the actual voltage V received of data wire 214Close to target voltage Vlc.Therefore, the present embodiment is equivalent to fall
Low persistent period t1With persistent period t2Between the actual voltage difference received of data wire 21 such that it is able to reduce pixel 23 and shown
The difference of the brightness shown, improves horizontal band sense during liquid crystal display display, improves picture quality.
Refer to Fig. 4, for the driving schematic diagram of the liquid crystal display of another embodiment of the present invention.The present embodiment is anti-with 3 lines
The mode that turns provides data signal to a plurality of data lines 21.As shown in Figure 4, in data signal VD2Adjacent twice polarity inversion it
Between, the such as positive polarity shown in figure is converted to the reversed line 41 of negative polarity and negative polarity be converted to positive polarity reversed line 42 it
Between, scanner driver 24 provides scanning signal V successively to 3 scan lines 22S2.Specifically, in data signal VD2A polarity
After reversion, first scanning signal V that scanner driver 24 providesS2Persistent period t3Another more than before polarity inversion next time
One scanning signal VS2Persistent period t4, the 3rd scanning signal VS2Persistent period t5Equal to second scanning signal VS2's
Persistent period t4.It is compared to the prior art shown in Fig. 1, owing to extending first scanning signal after being originally implemented in polarity inversion
VS2Persistent period t3, reduce the impact of RC conversion so that in data signal VD2Polarity inversion after charging stage (continue
Time t3In), the actual voltage V received of data wire 214Close to target voltage Vlc, now driving Article 1 scan line 22
Persistent period t3In, the brightness shown by pixel 23 is more than the brightness of prior art, the scanning signal V of another scan line 22S2
The scanning signal V of polarity and Article 1 scan line 22S2Polarity identical, the actual voltage V received of data wire 216Close to mesh
Mark voltage Vlc.Therefore, the present embodiment is equivalent to reduce persistent period t2With persistent period t4(or persistent period t5Data between)
The actual voltage difference received of line 21 such that it is able to the difference of minimizing brightness shown by pixel 23, improves liquid crystal display and shows
Time horizontal band sense, improve picture quality.
Based on same principle, it may also be possible to apply the invention for data signal and carry out the reality of polarity inversion with n line inversion mode
Execute example, only need to be more than once polarity in the persistent period of first scanning signal after data signal a polarity inversion anti-
The persistent period of remaining the scanning signal before Zhuaning.And remaining scanning signal persistent period can be mutually the same, it is also possible to
Taper into.
The embodiment of the present invention also provides for the driving method of a kind of liquid crystal display as shown in Figure 5.As it is shown in figure 5, it is described
The driving method of liquid crystal display can include step S51 and S52.
S51: determine the polarity inversion moment of data signal.
S52: scanner driver adjusts the persistent period of scanning signal according to the polarity inversion moment.
Wherein, the persistent period of at least partly scanning signal that scanner driver provides is different from each other.
The driving method of the present embodiment can be applicable to data signal and carries out the enforcement of polarity inversion with n line inversion mode
, wherein, there is n scanning signal in example between adjacent twice polarity inversion of data signal, n is the most whole more than or equal to 2
Number.Further, the persistent period of first scanning signal after a polarity inversion of data signal is more than once pole
The persistent period of remaining the scanning signal before sex reversal.Alternatively, the persistent period of remaining scanning signal is mutually the same or gradually
Diminish.
The concrete principle of described driving method and process see described in earlier figures 2～Fig. 3 embodiment.Due to this driving side
Method also has identical beneficial effect.
It is to be appreciated that the foregoing is only embodiments of the invention, not thereby limit the scope of the claims of the present invention, every
Utilizing equivalent structure or equivalence flow process conversion that description of the invention and accompanying drawing content made, between the most each embodiment, technology is special
That levies be combined with each other, or is directly or indirectly used in other relevant technical fields, and the patent being the most in like manner included in the present invention is protected
In the range of protecting.
Claims (10)
1. a liquid crystal display, it is characterised in that described liquid crystal display includes:
A plurality of data lines；
Multi-strip scanning line, described multi-strip scanning line is arranged in a crossed manner with described a plurality of data lines；
Data driver, for providing data signal in polarity inversion mode to described a plurality of data lines；
Scanner driver, for providing scanning signal to described multi-strip scanning line successively, and according to the polarity of described data signal
Reversion adjusts the persistent period of described scanning signal.
Liquid crystal display the most according to claim 1, it is characterised in that it is at least part of that described scanner driver is provided
The persistent period of described scanning signal is different from each other.
Liquid crystal display the most according to claim 1, it is characterised in that described data driver with n line inversion mode to
Described a plurality of data lines provides described data signal, wherein between adjacent twice polarity inversion of described data signal, described
Scanner driver provides described scanning signal to n bar scan line successively, and n is the positive integer more than or equal to 2.
Liquid crystal display the most according to claim 3, it is characterised in that in a polarity inversion of described data signal
After, the persistent period of first described scanning signal that described scanner driver is provided is more than its before polarity inversion next time
The persistent period of remaining described scanning signal.
Liquid crystal display the most according to claim 4, it is characterised in that the persistent period of remaining scanning signal described is each other
Identical or taper into.
6. the driving method of a liquid crystal display, it is characterised in that described driving method includes:
Determine the polarity inversion moment of data signal；
Scanner driver adjusts the persistent period of scanning signal according to the described polarity inversion moment.
Driving method the most according to claim 6, it is characterised in that at least part of institute that described scanner driver is provided
The persistent period stating scanning signal is different from each other.
Driving method the most according to claim 6, it is characterised in that described data signal carries out pole with n line inversion mode
, wherein there is n scanning signal in sex reversal between adjacent twice polarity inversion of described data signal, n is more than or equal to 2
Positive integer.
Driving method the most according to claim 8, it is characterised in that after a polarity inversion of described data signal
The persistent period of first described scanning signal is more than the persistent period of remaining the described scanning signal before polarity inversion next time.
Driving method the most according to claim 9, it is characterised in that the persistent period of remaining scanning signal described is each other
Identical or taper into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610740732.3A CN106297693A (en) | 2016-08-26 | 2016-08-26 | Liquid Crystal Display And Method For Driving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610740732.3A CN106297693A (en) | 2016-08-26 | 2016-08-26 | Liquid Crystal Display And Method For Driving |
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| Publication Number | Publication Date |
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| CN106297693A true CN106297693A (en) | 2017-01-04 |
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| CN201610740732.3A Pending CN106297693A (en) | 2016-08-26 | 2016-08-26 | Liquid Crystal Display And Method For Driving |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109785804A (en) * | 2017-11-13 | 2019-05-21 | 咸阳彩虹光电科技有限公司 | A kind of display methods, display unit and display |
| CN110570826A (en) * | 2019-08-29 | 2019-12-13 | 福建华佳彩有限公司 | display panel driving method |
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| CN104375346A (en) * | 2014-09-26 | 2015-02-25 | 友达光电股份有限公司 | Liquid crystal display panel and driving method thereof |
| CN105336296A (en) * | 2010-03-17 | 2016-02-17 | 三星显示有限公司 | Pixel and organic light emitting display device using the same |
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| CN1313519A (en) * | 2000-03-10 | 2001-09-19 | 夏普株式会社 | Data transmitting method, image display, signal wire drive and active matrix substrate |
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| CN109785804A (en) * | 2017-11-13 | 2019-05-21 | 咸阳彩虹光电科技有限公司 | A kind of display methods, display unit and display |
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| CN110570826B (en) * | 2019-08-29 | 2021-07-09 | 福建华佳彩有限公司 | Display panel driving method |
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Application publication date: 20170104 |