CN104698648B - The driving method and driving circuit of liquid crystal display panel, display device - Google Patents
The driving method and driving circuit of liquid crystal display panel, display device Download PDFInfo
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- CN104698648B CN104698648B CN201510161256.5A CN201510161256A CN104698648B CN 104698648 B CN104698648 B CN 104698648B CN 201510161256 A CN201510161256 A CN 201510161256A CN 104698648 B CN104698648 B CN 104698648B
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000000694 effects Effects 0.000 abstract description 14
- 238000010586 diagram Methods 0.000 description 7
- 239000010409 thin film Substances 0.000 description 5
- 239000000758 substrate Substances 0.000 description 4
- 230000002441 reversible effect Effects 0.000 description 3
- 235000013399 edible fruits Nutrition 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136286—Wiring, e.g. gate line, drain line
-
- 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
-
- 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
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
-
- 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
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Nonlinear Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Mathematical Physics (AREA)
- Optics & Photonics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The present invention provides a kind of driving method and driving circuit, display device of liquid crystal display panel.The driving method includes：A plurality of grid line is divided into multiple grid line groups, each grid line group includes a grid line or a plurality of grid line that is sequentially arranged, multiple grid line groups are divided into even number grid line collection, each grid line collection includes multiple grid line groups, and each scan period of liquid crystal display panel includes the multiple scanning sub-stages sequentially carried out；In k-th of scanning sub-stage of each scan period, scanning signal is successively provided to each grid line of k-th of grid line collection；In+1 scanning sub-stage of kth of each scan period, scanning signal is successively provided to each grid line of+1 grid line collection of kth；Wherein, for any one column data line, the polarity of the voltage signal of+1 scanning sub-stage input of voltage signal and kth of k-th of scanning sub-stage input is on the contrary, k is positive integer.The present invention can reduce the power consumption of driving circuit while reaching preferable display effect.
Description
Technical field
The present invention relates to display technology fields, and in particular to the driving method and driving circuit of a kind of liquid crystal display panel,
A kind of display device including the driving circuit.
Background technology
Liquid crystal display device is thin with Low emissivity, thickness because having the characteristics that, and is widely used in mobile phone, TV, notes
The electronic display units such as this computer.Liquid crystal display panel includes array substrate and display panel, includes a plurality of grid in array substrate
Array substrate is divided into multiple pixel units by line and multiple data lines.When showing picture, loads and sweep successively to a plurality of grid line
Signal is retouched, on-load voltage signal is distinguished in multiple data lines, thus by the signal loading on every data line to scanned grid
In the corresponding one-row pixels unit of line, so that the liquid crystal in each pixel unit deflects.
In order to avoid liquid crystal material generates polarization and damages, the mode of generally use polarity reversion is to LCD display
Plate is driven.Polarity reversion pattern include：Frame reversion, row reversion, column inversion and dot inversion.Wherein, the driving of column inversion
Under pattern, the polarity of the pixel unit of each row is identical, and the polarity of voltage on same data line is within a scan period
Constant so that the power consumption of driving circuit is smaller, but in terms of display effect, the display effect of column inversion pattern is poor；And
Under the drive mode of dot inversion, the polarity of voltage that pixel unit is stored with its pixel unit adjacent up and down is on the contrary, can
Ripple phenomenon is effectively improved, there is good display effect, still, in order to realize that dot inversion drives, as shown in Figure 1, data
Voltage on line is usually required in a scan period TNDo not stop inside to carry out polarity reversion, to greatly increase driving circuit
Power consumption.
Invention content
The purpose of the present invention is to provide a kind of driving method of liquid crystal display panel and driving circuits and a kind of display to fill
It sets, the power consumption of driving circuit is reduced while ensureing display effect.
To achieve the goals above, the present invention provides a kind of driving method of liquid crystal display panel, the LCD display
Plate includes a plurality of grid line and multiple data lines, and the driving method includes：
A plurality of grid line is divided into multiple grid line groups, each grid line group includes a grid line or a plurality of grid that are sequentially arranged
Multiple grid line groups are divided into even number grid line collection by line, and each grid line collection includes multiple grid line groups, and the same grid line is concentrated more
The parity of the group number of a grid line group is identical, and each scan period of the liquid crystal display panel includes that sequentially carry out multiple sweep
Retouch sub-stage；
In k-th of scanning sub-stage of each scan period, scanning letter is successively provided to each grid line of k-th of grid line collection
Number, voltage signal is provided respectively to every column data line, and is supplied to the voltage signal of odd number column data line and is supplied to even number
The polarity of the voltage signal of the data line of row is opposite；
In+1 scanning sub-stage of kth of each scan period, successively provides and sweep to each grid line of+1 grid line collection of kth
Signal is retouched, voltage signal is provided respectively to every column data line, and is supplied to the voltage signal of odd number column data line and is supplied to
The polarity of the voltage signal of even number column data line is opposite；Wherein,
For any one column data line ,+1 sub- rank of scanning of voltage signal and kth of k-th of scanning sub-stage input
The polarity of the voltage signal of section input is on the contrary, k is positive integer.
Preferably, each grid line group includes two grid lines.
Preferably, each grid line group includes a grid line.
Preferably, each scan period includes two scanning sub-stages, and multiple grid line groups are divided into two grid line collection, the
The group number for multiple grid line groups that one grid line is concentrated is odd number, and the group number for multiple grid line groups that second grid line is concentrated is even number.
For any one column data line, the pole of the voltage signal of two scan periods of arbitrary neighborhood input
Property is opposite.
Correspondingly, the present invention also provides a kind of driving circuit of liquid crystal display panel, the liquid crystal display panel includes more
Grid line and multiple data lines, a plurality of grid line are divided into multiple grid line groups, and each grid line group includes a grid line or sequentially arranges
The a plurality of grid line of row, multiple grid line groups are divided into even number grid line collection, and each grid line collection includes multiple grid line groups, the same grid
The parity of the group number for multiple grid line groups that line is concentrated is identical, each scan period of the liquid crystal display panel include sequentially into
Capable multiple scanning sub-stages, the driving circuit include：
Drive element of the grid, for k-th of scanning each grid of the sub-stage to k-th of grid line collection in each scan period
Line successively provides scanning signal, and scanning letter is successively provided to each grid line of+1 grid line collection of kth in+1 scanning sub-stage of kth
Number；
Source drive unit is distinguished for scanning+1 scanning sub-stage of sub-stage and kth at k-th to every column data line
Voltage signal is provided；
Wherein, for any one scanning sub-stage, the source drive unit is supplied to odd number column data line
Voltage signal is opposite with the polarity of the voltage signal of even column is supplied to；For any one column data line, k-th of scanning
The polarity of the voltage signal of+1 scanning sub-stage input of the voltage signal of stage input and kth is on the contrary, k is positive integer.
Preferably, each grid line group includes two grid lines.
Preferably, each grid line group includes a grid line.
Preferably, each scan period includes two scanning sub-stages, and multiple grid line groups are divided into two grid line collection, the
The group number for multiple grid line groups that one grid line is concentrated is odd number, and the group number for multiple grid line groups that second grid line is concentrated is even number,
The drive element of the grid includes：
First grid drive module, in first of each scan period scanning sub-stage to first grid line collection
Each grid line successively provides scanning signal；
Second grid drive module, in second of each scan period scanning sub-stage to second grid line collection
Each grid line successively provides scanning signal.
Preferably, the source drive unit is supplied to the voltage signal on any one column data line in two neighboring scanning
The polarity in period is opposite.
Correspondingly, the present invention also provides a kind of display device, including liquid crystal display panel and for driving the liquid crystal display
The driving circuit of panel, wherein the driving circuit is above-mentioned driving circuit provided by the present invention.
In the present invention, a plurality of grid line is divided into multiple grid line groups, and multiple grid line groups are divided into even number grid line again
Collection, progressively scans the grid line of different grid line collection in different scanning sub-stages, also, same scanning sub-stage institute
The group number of the grid line group of scanning is therefore odd number or even number after the scan period, are stored in same row pixel unit
The polarity of voltage be it is positive and negative be spaced apart, compared with the pattern of column inversion in the prior art, can reach preferably display effect
Fruit；It is compared with the pattern of dot inversion in the prior art, in driving method of the invention, scans a plurality of of the same grid line concentration
When grid line (in the same scanning sub-stage), the polarity of the voltage signal on data line is identical, it is only necessary to adjacent
The polarity of the voltage signal of data line will be supplied to be inverted between two scanning sub-stages, without every scanning one
Row pixel unit just inverts the polarity of voltage signal once, to reduce the number of polarity reversion, reduces driving circuit
Power consumption, thereby reduce the power consumption of display device.
Description of the drawings
Attached drawing is to be used to provide further understanding of the present invention, an and part for constitution instruction, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the polarity of voltage schematic diagram under dot inversion drive mode on grid line and data line in the prior art；
Fig. 2 is the structural schematic diagram of array substrate；
Fig. 3-a to Fig. 3-c are that the polarity of pixel unit in one embodiment of the present invention changes in the n-th scan period
Schematic diagram；
Fig. 4-a to Fig. 4-e are the polarity of pixel unit in another embodiment of the invention within the n-th scan period
Change schematic diagram；
Fig. 5-a to Fig. 5-c be the present invention another embodiment in pixel unit polarity within the n-th scan period
Change schematic diagram；
Fig. 6 is the polarity of voltage change schematic diagram on grid line and data line in embodiments of the present invention.
Specific implementation mode
The specific implementation mode of the present invention is described in detail below in conjunction with attached drawing.It should be understood that this place is retouched
The specific implementation mode stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
As an aspect of of the present present invention, a kind of driving method of liquid crystal display panel, the liquid crystal display panel packet are provided
A plurality of grid line and multiple data lines are included, the driving method includes：
A plurality of grid line is divided into multiple grid line groups, each grid line group includes a grid line or a plurality of grid that are sequentially arranged
Multiple grid line groups are divided into even number grid line collection by line, and each grid line collection includes multiple grid line groups, and the same grid line is concentrated more
The parity of the group number of a grid line group is identical, and each scan period of the liquid crystal display panel includes that sequentially carry out multiple sweep
Retouch sub-stage；
In k-th of scanning sub-stage of each scan period, scanning letter is successively provided to each grid line of k-th of grid line collection
Number, voltage signal is provided respectively to every column data line, and is supplied to the voltage signal of odd number column data line and is supplied to even number
The polarity of the voltage signal of the data line of row is opposite；
In+1 scanning sub-stage of kth of each scan period, successively provides and sweep to each grid line of+1 grid line collection of kth
Signal is retouched, voltage signal is provided respectively to every column data line, and is supplied to the voltage signal of odd number column data line and is supplied to
The polarity of the voltage signal of even number column data line is opposite；Wherein,
For any one column data line ,+1 sub- rank of scanning of voltage signal and kth of k-th of scanning sub-stage input
The polarity of the voltage signal of section input is on the contrary, k is positive integer.
As shown in Fig. 2, liquid crystal display panel includes a plurality of grid line G1、G2、G3……G2XWith multiple data lines S1、S2、
S3……S2Y, liquid crystal display panel is limited multiple pixel units by a plurality of grid line and multiple data lines, in each pixel unit
It is provided with pixel electrode 1 and thin film transistor (TFT) 2, the drain electrode of thin film transistor (TFT) is connected with pixel electrode 1, often in row pixel unit
The grid of thin film transistor (TFT) 2 is connected with same grid line, source electrode and the same number of the thin film transistor (TFT) 2 in each column pixel unit
It is connected according to line.Display panel further includes public electrode and the public electrode wire for providing public voltage signal, to liquid crystal
When showing that panel is driven, scanning signal is provided to the pixel unit of corresponding line by grid line, so that the row pixel unit
Thin film transistor (TFT) 2 is connected, and provides voltage signal respectively by each column in data line guide passage pixel unit, passes through film
Transistor 2 is written to pixel electrode 1, the voltage signal stored in each pixel unit be voltage on pixel electrode with it is public
The difference between common voltage on electrode.The heretofore described polarity of the voltage signal of data line that is supplied to refers to opposite
In the polarity of the common voltage.
" each scan period " refers to the process of that display panel shows a frame picture, that is, driving circuit is completed primary
Scanning to all grid lines, and it is stored with voltage signal in all pixel units.
In the present invention, a plurality of grid line is divided into multiple grid line groups, and multiple grid line groups are divided into even number grid line again
Collection, progressively scans the grid line of different grid line collection in different scanning sub-stages, also, same scanning sub-stage institute
The group number of the grid line group of scanning is therefore odd number or even number after the scan period, are stored in same row pixel unit
The polarity of voltage be it is positive and negative be spaced apart, compared with the pattern of column inversion in the prior art, can reach preferably display effect
Fruit；It is compared with the pattern of dot inversion in the prior art, in driving method of the invention, scans a plurality of of the same grid line concentration
When grid line (in the same scanning sub-stage), the polarity of the voltage signal on data line is identical, it is only necessary to adjacent
The polarity of the voltage signal of data line will be supplied to be inverted between two scanning sub-stages, without every scanning one
Row pixel unit just inverts the polarity of voltage signal once, to reduce the number of polarity reversion, reduces driving circuit
Power consumption, thereby reduce the power consumption of display device.
It should be noted that in the partition process of grid line, divided according to the extending direction sequence of data line,
For example, grid line G1, G2, G3, G4 are first grid line group, grid line G5, G6, G7, G8 are second grid line group, are arranged and are pushed away with this.M
The group number of a grid line group is m.4X grid line is divided into X grid line group, and X grid line group is divided into even number grid line
Collection, for example, being divided into four grid line collection, first grid line collection includes the 1st, 5,9 ... a grid line groups, and second grid line collection includes
2nd, 6,10 ... a grid line groups, third grid line collection include the 3rd, 7,11 ... a grid line groups, and the 4th grid line collection includes the
4,8,12 ... a grid line group.
In the present invention, each grid line group may include a grid line, can also include a plurality of grid line.
As a kind of specific implementation mode of the present invention, each grid line group includes two grid lines, such as 2X grid line in Fig. 2
It is divided into X grid line group.When X grid line group is divided into two grid line collection, it includes group number as odd number that first grid line, which integrates,
Grid line group, it includes group number as the grid line group of even number that second grid line, which integrates, in N-1 frame images, the voltage pole of each pixel unit
Property distribution as shown in Fig. 3-a, in first of n-th scan period scanning sub-stage, provided to group number for the grid line group of odd number
Scanning signal successively provides scanning signal to the 1st, 2,5,6,9,10 ... article of grid line, and is carried respectively to odd number column data line
The voltage signal for providing positive polarity respectively for the voltage signal of negative polarity, to even number column data line obtains showing as shown in Fig. 3-b
Diagram picture；Second in the n-th scan period scans sub-stage, provides scanning signal to group number for the grid line group of even number, i.e.,
Scanning signal is successively provided to the 3rd, 4,7,8,11,12 ... article of grid line, and positive polarity is provided respectively to odd number column data line
Voltage signal, the voltage signal for providing negative polarity respectively to even number column data line, obtain the display of the nth frame as shown in Fig. 3-c
Image, to realize the effect of two-dot inversion.
It is a little driven reverse effect in order to realize, it is preferable that each grid line group includes a grid line, each grid line group
Group number is identical as the line number for the grid line that it is included.Under this setup, voltage signal and its week of each pixel unit
The polarity for enclosing the voltage signal of adjacent pixel unit is contrary, so as to improve display effect.
It is understood that the polar reversion number of the voltage signal of the be supplied to data line of driving circuit and grid line collection
Number it is related, for example, each grid line group includes a grid line, multiple grid line groups are divided into four grid line collection, first grid
Line collection includes the 1st, 5,9 ... a grid line groups (the i.e. the 1st, 5,9 ... article of grid line), and second grid line collection includes the 2nd, 6,10 ...
Grid line, third grid line collection include the 3rd, 7,11 ... article of grid line, and the 4th grid line collection includes the 4th, 8,12 ... article of grid line.
As depicted in fig. 4-a be N-1 frames display picture in pixel unit polarity of voltage distribution, in display nth frame picture (i.e. the
N number of scan period) when, sub-stage is scanned at first, completes the scanning to first grid line collection, is provided to odd number column data line
Voltage signal, the even number column data line of negative polarity provide the voltage signal of positive polarity so that the corresponding multirow of first grid line collection
The voltage signal of odd column pixel unit storage negative polarity in pixel unit, the voltage of even column pixels unit storage positive polarity
Signal (as shown in Fig. 4-b)；Sub-stage is scanned at second, completes scanning to second grid line collection, and to odd number column data
Line provides the voltage signal of positive polarity, even number column data line provides the voltage signal of negative polarity so that second grid line collection corresponds to
Multirow pixel unit in odd column storage positive polarity voltage signal, even column storage negative polarity voltage signal (as scheme
Shown in 4-c)；Sub-stage is scanned in third, completes the scanning to third grid line collection, and cathode is provided to odd number column data line
Property voltage signal, even number column data line provide positive polarity voltage signal so that the corresponding multirow pixel of third grid line collection
The voltage signal of odd column storage negative polarity in unit, the voltage signal of even column storage positive polarity (as shown in Fig. 4-d)；
4th scanning sub-stage completes the scanning to the 4th grid line collection, and the voltage letter of positive polarity is provided to odd number column data line
Number, idol column data line provide negative polarity voltage signal so that it is strange in the corresponding multirow pixel unit of the 4th grid line collection
Ordered series of numbers stores the voltage signal of positive polarity, even column stores the voltage signal of negative polarity, and at this moment each pixel unit is stored with
Voltage signal, to show nth frame picture, and same frame is shown in picture, each pixel unit and picture adjacent around it
The polarity of the voltage signal of plain unit is opposite (as shown in Fig. 4-e), to improve display effect.
In order to reduce the power consumption of driving circuit as much as possible, it is preferable that each scan period includes two scanning sub-stages,
Multiple grid line groups are divided into two grid line collection, the group number for multiple grid line groups that first grid line is concentrated is odd number, second grid
The group number for multiple grid line groups that line is concentrated is even number.That is, first scanning sub-stage, is each in the grid line group of odd number to group number
Grid line is progressively scanned, and sub-stage is scanned at second, is swept line by line for each grid line in the grid line group of even number to group number
It retouches.
When each grid line group includes a grid line, first scanning sub-stage is scanned odd number grid line successively,
Second scanning sub-stage antithesis several grid line is scanned successively.For including the display surface of 2X grid line 2Y column data line
Plate, N-1 frames show the polarity distribution of each pixel unit in picture as shown in Fig. 5-a, in first scanning of N number of scan period
Sub-stage (the T in Fig. 6N1Stage), driving circuit is to odd number grid line G1、G3……G2X-1Successively provide scanning signal, and to strange
Ordered series of numbers data line S1、S3……S2Y-1Corresponding reverse voltage signal is provided respectively, to even number column data line S2、S4……S2Y
Corresponding positive polarity voltage signal is provided respectively, shows that the polarity of voltage of each pixel unit in image is distributed as shown in Fig. 5-b；
Second scanning sub-stage (T in Fig. 6N2Stage), driving circuit is to even number grid line G2、G4……G2XSuccessively provide scanning letter
Number, and to odd number column data line S1、S3……S2Y-1Corresponding positive polarity voltage signal is provided respectively, to even number column data line S2、
S4……S2YCorresponding reverse voltage signal is provided respectively, to show that nth frame shows picture, shows each pixel in picture
The polarity of voltage of unit is distributed as shown in Fig. 5-c.Voltage signal on per data line is in TN1Stage and TN2It is carried out between stage
Polarity reversion, and compare (as shown in Figure 1) in the prior art, substantially reduces reversion number, is driven to reduce
The power consumption of circuit.
Specifically, for any one column data line, the pole of the voltage signal of two scan periods of arbitrary neighborhood input
Property on the contrary, to prevent liquid crystal material polarize and damage.
As another aspect of the present invention, a kind of driving circuit of liquid crystal display panel, the liquid crystal display panel are provided
Including a plurality of grid line and multiple data lines, a plurality of grid line is divided into multiple grid line groups, each grid line group include a grid line or
The a plurality of grid line being sequentially arranged, multiple grid line groups are divided into even number grid line collection, and each grid line collection includes multiple grid line groups, together
The parity of the group number for multiple grid line groups that one grid line is concentrated is identical, and each scan period of the liquid crystal display panel includes
The multiple scanning sub-stages sequentially carried out, the driving circuit include：
Drive element of the grid, for k-th of scanning each grid of the sub-stage to k-th of grid line collection in each scan period
Line successively provides scanning signal, and scanning letter is successively provided to each grid line of+1 grid line collection of kth in+1 scanning sub-stage of kth
Number；
Source drive unit is distinguished for scanning+1 scanning sub-stage of sub-stage and kth at k-th to every column data line
Voltage signal is provided；
Wherein, for any one scanning sub-stage, the source drive unit is supplied to odd number column data line
Voltage signal is opposite with the polarity of the voltage signal of even column is supplied to；For any one column data line, k-th of scanning
The polarity of the voltage signal of+1 scanning sub-stage input of the voltage signal of stage input and kth is on the contrary, k is positive integer.
Under the source drive unit of the present invention and the driving effect of drive element of the grid, deposited in same row pixel unit
The polarity of the voltage of storage be it is positive and negative be spaced apart, compared with the pattern of column inversion in the prior art, can reach preferably aobvious
Show effect；It is compared with the pattern of dot inversion in the prior art, what source drive unit of the invention was provided on data line
The polarity of voltage signal is identical in the same scanning sub-stage, it is only necessary to be carried out between two neighboring scanning sub-stage
Polarity inverts, and just inverts voltage signal once without one grid line of every scanning, to reduce polarity reversion
Number reduces the power consumption of source drive unit.
As a kind of specific implementation mode of the present invention, each grid line group may include two grid lines, to reach at 2 points
The effect of reversion.
Preferably, each grid line group includes a grid line so that in every frame image, the voltage pole of each pixel unit
The property polarity of voltage of the pixel unit adjacent with surrounding is opposite.
In order to reduce the power consumption of source drive unit as much as possible, it is preferable that each scan period includes two scanning
Stage, multiple grid line groups are divided into two grid line collection, and the group numbers of multiple grid line groups that first grid line is concentrated is odd number, and second
The group number for multiple grid line groups that a grid line is concentrated is even number, and the drive element of the grid includes：
First grid drive module, in first of each scan period scanning sub-stage to first grid line collection
Each grid line successively provides scanning signal；
Second grid drive module, in second of each scan period scanning sub-stage to second grid line collection
Each grid line successively provides scanning signal.
The first grid drive module and second grid drive module all can be shift register, each shift LD
Device includes multiple cascade shift register cells.Two shift registers are for respectively to the grid line group and group that group number is odd number
Number provide scanning signal for the grid line group of even number.That is, when each grid line group includes a grid line, two shift registers can
To provide scanning signal to the grid line of odd-numbered line and the grid line of even number line respectively；When each grid line group includes two grid lines, wherein
One shift register successively provides scanning signal to the 1st, 2,5,6,9,10 ... article of grid line, another shift register is to
3,4,7,8,11,12 ... grid lines successively provide scanning signal.When one of shift register work, another displacement is posted
Storage may be at closed state, to reduce the power consumption of drive element of the grid on the whole.
The polarization of liquid crystal molecule in order to prevent, the source drive unit are supplied to the voltage on any one column data line to believe
Number the two neighboring scan period polarity on the contrary, so that when showing adjacent two frames picture, the electricity of each pixel unit
Pressure polarity inverts.
Certain time interval, phase are usually there will be it is understood that being written between two groups of voltage values to driving circuit
Can there are vacant (blank) stage, Tb as shown in Figure 6 between adjacent two scanning sub-stage.
As another aspect of the invention, a kind of display device is provided, including liquid crystal display panel and for driving the liquid
The driving circuit of LCD panel, wherein the driving circuit is above-mentioned driving circuit provided by the present invention.
When being driven to liquid crystal display panel due to above-mentioned driving circuit, voltage that same row pixel unit is stored
Polarity is that positive and negative be spaced apart is compared with the pattern of column inversion, can obtain better display effect；With it is in the prior art
The pattern of dot inversion is compared, and the polarity for the voltage signal that driving circuit is provided in the present invention is only needed in two neighboring scanning
Polarity reversion is carried out between stage, just inverts voltage signal once, to reduce without one grid line of every scanning
The number of polarity reversion, reduces the power consumption of source drive unit, thereby reduces the power consumption of display device.
It is understood that the principle that embodiment of above is intended to be merely illustrative of the present and the exemplary implementation that uses
Mode, however the present invention is not limited thereto.For those skilled in the art, in the essence for not departing from the present invention
In the case of refreshing and essence, various changes and modifications can be made therein, these variations and modifications are also considered as protection scope of the present invention.
Claims (9)
1. a kind of driving method of liquid crystal display panel, the liquid crystal display panel includes a plurality of grid line and multiple data lines,
It is characterized in that, the driving method includes：
A plurality of grid line is divided into multiple grid line groups, each grid line group includes a plurality of grid line being sequentially arranged, by multiple grid line groups
It is divided into even number grid line collection, each grid line collection includes multiple grid line groups, the group number for multiple grid line groups that the same grid line is concentrated
Parity it is identical, each scan period of the liquid crystal display panel includes the multiple scanning sub-stages sequentially carried out；
In k-th of scanning sub-stage of each scan period, scanning signal is successively provided to each grid line of k-th of grid line collection,
Voltage signal is provided respectively to every column data line, and is supplied to the voltage signal of odd number column data line and is supplied to even column
The polarity of the voltage signal of data line is opposite；
In+1 scanning sub-stage of kth of each scan period, scanning letter is successively provided to each grid line of+1 grid line collection of kth
Number, voltage signal is provided respectively to every column data line, and is supplied to the voltage signal of odd number column data line and is supplied to even number
The polarity of the voltage signal of column data line is opposite；Wherein,
For any one column data line ,+1 scanning sub-stage of voltage signal and kth of k-th of scanning sub-stage input is defeated
The polarity of the voltage signal entered is on the contrary, k is positive integer.
2. driving method according to claim 1, which is characterized in that each grid line group includes two grid lines.
3. driving method according to claim 1, which is characterized in that each scan period includes two scanning sub-stages,
Multiple grid line groups are divided into two grid line collection, the group number for multiple grid line groups that first grid line is concentrated is odd number, second grid
The group number for multiple grid line groups that line is concentrated is even number.
4. driving method as claimed in any of claims 1 to 3, which is characterized in that for any one column data line
For, the polarity of the voltage signal of two scan periods of arbitrary neighborhood input is opposite.
5. a kind of driving circuit of liquid crystal display panel, the liquid crystal display panel includes a plurality of grid line and multiple data lines,
It is characterized in that, a plurality of grid line is divided into multiple grid line groups, and each grid line group includes a plurality of grid line being sequentially arranged, multiple grid lines
Group is divided into even number grid line collection, and each grid line collection includes multiple grid line groups, multiple grid line groups that the same grid line is concentrated
The parity of group number is identical, and each scan period of the liquid crystal display panel includes the multiple scanning sub-stages sequentially carried out,
The driving circuit includes：
Drive element of the grid, for each grid line from k-th of each scan period scanning sub-stage to k-th of grid line collection according to
Secondary offer scanning signal successively provides scanning signal in+1 scanning sub-stage of kth to each grid line of+1 grid line collection of kth；
Source drive unit is provided for scanning+1 scanning sub-stage of sub-stage and kth at k-th to every column data line respectively
Voltage signal；
Wherein, for any one scanning sub-stage, the source drive unit is supplied to the voltage of odd number column data line
Signal is opposite with the polarity of the voltage signal of even column is supplied to；For any one column data line, k-th of scanning sub-stage
The polarity of the voltage signal of+1 scanning sub-stage input of the voltage signal of input and kth is on the contrary, k is positive integer.
6. driving circuit according to claim 5, which is characterized in that each grid line group includes two grid lines.
7. driving circuit according to claim 5, which is characterized in that each scan period includes two scanning sub-stages,
Multiple grid line groups are divided into two grid line collection, and the group number for multiple grid line groups that first grid line is concentrated is odd number, second grid
The group number for multiple grid line groups that line is concentrated is even number, and the drive element of the grid includes：
First grid drive module, for first scanning each item of the sub-stage to first grid line collection in each scan period
Grid line successively provides scanning signal；
Second grid drive module, for second scanning each item of the sub-stage to second grid line collection in each scan period
Grid line successively provides scanning signal.
8. the driving circuit according to any one of claim 5 to 7, which is characterized in that the source drive unit carries
The voltage signal supplied on any one column data line is opposite in the polarity of two neighboring scan period.
9. a kind of display device, including liquid crystal display panel and the driving circuit for driving the liquid crystal display panel, feature
It is, the driving circuit is the driving circuit described in any one of claim 5 to 8.
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| CN105469757A (en) * | 2015-12-10 | 2016-04-06 | 深圳市华星光电技术有限公司 | Display panel scan driving method |
| CN105405385B (en) * | 2015-12-31 | 2019-06-07 | 京东方科技集团股份有限公司 | GOA circuit, GOA circuit scanning method, display panel and display device |
| WO2019008464A1 (en) * | 2017-07-07 | 2019-01-10 | Semiconductor Energy Laboratory Co., Ltd. | Method for driving a display device |
| CN107464538B (en) * | 2017-08-25 | 2019-04-05 | 惠科股份有限公司 | Display device and its driving method |
| CN108109598A (en) * | 2017-12-19 | 2018-06-01 | 深圳市华星光电半导体显示技术有限公司 | A kind of GOA circuits and liquid crystal display panel |
| CN109064988B (en) * | 2018-09-07 | 2021-02-26 | 惠科股份有限公司 | Display panel driving method and display device |
| CN109686335B (en) * | 2019-02-19 | 2021-04-27 | 京东方科技集团股份有限公司 | Time sequence control method, time sequence controller and display device |
| CN114170983B (en) * | 2021-11-30 | 2023-04-07 | 京东方科技集团股份有限公司 | Display device, display driving method, and electronic apparatus |
| CN114815420A (en) * | 2022-04-06 | 2022-07-29 | Tcl华星光电技术有限公司 | Liquid crystal display panel and display device |
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| US9196206B2 (en) * | 2007-04-26 | 2015-11-24 | Sharp Kabushiki Kaisha | Liquid crystal display |
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| CN101226290A (en) * | 2007-01-15 | 2008-07-23 | 联詠科技股份有限公司 | Display panel and display device using the same as well as drive method of control signal |
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