CN109164653A - A kind of liquid crystal display panel and its driving method - Google Patents
A kind of liquid crystal display panel and its driving method Download PDFInfo
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- CN109164653A CN109164653A CN201811102718.6A CN201811102718A CN109164653A CN 109164653 A CN109164653 A CN 109164653A CN 201811102718 A CN201811102718 A CN 201811102718A CN 109164653 A CN109164653 A CN 109164653A
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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
- G02F1/136—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
- 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
Abstract
The present invention provides a kind of liquid crystal display panel, comprising: multiple groups scan line and multi-group data line, each group of scan line includes n scan line, each group of data line includes n data line, multiple groups scan line and multi-group data line, which intersect, marks off multiple pixel regions, and a pixel circuit is provided in each pixel region；n≥2；Each pixel circuit is connect with the different scanning line in same group of scan line respectively, and each pixel circuit is further averaged and do not connect with the different data line in same group of data line；Multiple groups scan line is used to be respectively connected to different scanning signals, and in any one group of scan line, it is same phase difference setting value there are phase difference of the n-1 to the scanning signal that scan line accesses, it is phase difference setting value there are phase difference of the n-1 to the data-signal that data line accesses in any one group of data line.The present invention can solve the undercharge problem of liquid crystal display panel, improve the display effect of liquid crystal display panel.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of liquid crystal display panels and its driving method.
Background technique
Liquid crystal display panel (Liquid Crystal Display, LCD) is with its high brightness, long-life, wide viewing angle, big ruler
The advantages that very little display, is as main display technology currently on the market.Growing terminal requirements and fierce industry competition promote
Make liquid crystal display panel towards the side such as large scale (65 ", 75 ", 85 " etc.), high-resolution (4k, 8k, 16k etc.), high refreshing frequency
To development.
The main difficult technical that large scale, the development of high-resolution panel face is the TFT (Thin in pixel circuit
Film Transistor, thin film transistor (TFT)) undercharge.The working principle of liquid crystal display panel is that Data line (data line) is defeated
Enter data-signal, then Gate line (scan line) is from top to bottom opened line by line, and is charged (such as by data-signal to row TFT
Shown in Fig. 1, scan line G1, G2, G3, G4 successively open thin film transistor (TFT) T line by line, and data line D1, D2, D3, D4 convey data letter
Number charge), when the TFT on every row Gate line is opened, corresponding charging time t has with refreshing frequency N, Gate line line number Y
It closes (i.e. related with resolution ratio), calculation formula is t=1/ (N*Y).When liquid crystal display panel refreshing frequency is higher, resolution ratio is bigger
When, the corresponding TFT charging time is shorter, is easy for leading to liquid crystal display panel undercharge, influences liquid crystal display panel
Display effect.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of liquid crystal display panel and its driving method, liquid can solve
The undercharge problem of LCD panel, improves the display effect of liquid crystal display panel.
A kind of liquid crystal display panel provided by the invention, comprising: multiple groups scan line and multi-group data line, each group of scan line
It include n scan line, each group of data line includes n data line, the multiple groups scan line and the multi-group data
Line, which intersects, marks off multiple pixel regions, and a pixel circuit is provided in each pixel region；Wherein, n >=2；
Each described pixel circuit is connect with the different scanning line in same group of scan line respectively, and described in each
Pixel circuit, which further averages, not to be connect with the different data line in same group of data line；
The multiple groups scan line is used to be respectively connected to different scanning signals, and in any one group of scan line, exists
N-1 is that same phase difference setting value exists in any one group of data line to the phase difference for the scanning signal that scan line accesses
N-1 is the phase difference setting value to the phase difference for the data-signal that data line accesses, and the phase difference setting value is less than liquid
One vertical interval of LCD panel.
Preferably, each described pixel circuit includes n thin film transistor (TFT) and a pixel electrode, each institute
The grid for stating n thin film transistor (TFT) in pixel circuit is correspondingly connected with n scan line in same group respectively, and each institute
One end in the source-drain electrode of n thin film transistor (TFT) in pixel circuit is stated to connect with the n data line in same group respectively, it is each
The other end of the source-drain electrode of n thin film transistor (TFT) in a pixel circuit is connect with the pixel electrode.
It preferably, is T/ there are phase difference of the n-1 to the scanning signal that scan line accesses in any one group of scan line
N, and in any one group of data line, is T/n there are phase difference of the n-1 to the data-signal that data line accesses, wherein T is
One vertical interval of liquid crystal display panel.
Preferably, in any one group of scan line, n scan line is arranged successively, wherein the scanning in kth scan line
The phase difference between scanning signal in+1 scan line of signal and kth is T/n；
In any one group of data line, n data line is arranged successively, wherein the data-signal on kth data line and
The phase difference between data-signal on k+1 data line is T/n.
Preferably, the resolution ratio of the liquid crystal display panel is not less than 4k, and the size of the liquid crystal display panel is not small
In 65 cun.
Preferably, connect with the pixel circuit of a line with same group of scan line, the pixel circuit of same row with same group
Data line connection, and the pixel circuit that do not go together and the connection of different groups of scan line, the pixel circuit of different lines from different groups
Data line connection.
The present invention also provides a kind of driving method of liquid crystal display panel, the liquid crystal display panel includes: multiple groups scanning
Line and multi-group data line, each group of scan line include n scan line, and each group of data line includes n data line, institute
It states multiple groups scan line and the multi-group data line intersects and marks off multiple pixel regions, be provided in each pixel region
One pixel circuit；Wherein, n >=2；
Each described pixel circuit is connect with the different scanning line in same group of scan line respectively, and described in each
Pixel circuit, which further averages, not to be connect with the different data line in same group of data line；
The driving method of the liquid crystal display panel includes the following steps:
Scanning signal successively is conveyed to first scan line in each group of scan line of the liquid crystal display panel, line by line
Pixel circuit is opened, and conveys data-signal to the first data line in each group of data line, and open last line every time
After pixel circuit, pixel circuit is opened line by line again again；
Scanning signal is being conveyed by the kth scan line to first group, is opening the first row pixel circuit and by setting
After time, scanning signal successively is conveyed to+1 scan line of kth in each group of scan line of liquid crystal display panel, is opened line by line
Pixel circuit, and data-signal is conveyed to+1 data line of kth in each group of data line；Wherein, k successively gets n-1 from 1.
Preferably, the setting time is T/n, wherein T is a vertical interval of the liquid crystal display panel.
The invention has the following beneficial effects: liquid crystal display panel and its driving method provided by the invention, each
A pixel circuit can successively be opened by multi-strip scanning line and convey data-signal by multiple data lines, in pixel circuit
During opening every time, all conveying data-signals charge to it, can integrally improve the refreshing frequency of liquid crystal display panel in this way
Rate, and the charging time of each pixel circuit can be made to double, and then promote the display image quality of liquid crystal display panel, effectively
Solve the tailing problem of picture shown by liquid crystal display panel.
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
It obtains other drawings based on these drawings.
Fig. 1 is the drive circuit schematic diagram of liquid crystal display panel in background technique.
Fig. 2 is the drive circuit schematic diagram of liquid crystal display panel provided by the invention.
Fig. 3 is the schematic diagram of pixel circuit in liquid crystal display panel provided by the invention.
Fig. 4 is any one group of received scanning signal waveform diagram of scan line institute in an embodiment provided by the invention.
Fig. 5 is the schematic diagram that data-signal is doubled to the pixel circuit charging time in an embodiment provided by the invention.
Specific embodiment
The present invention provides a kind of liquid crystal display panel, which includes multiple groups scan line shown in Fig. 2 and more
Group data line, each group of scan line include n scan line, and each group of data line includes n data line, multiple groups scanning
Line and multi-group data line, which intersect, marks off multiple pixel regions 10, and a pixel electricity is provided in each pixel region 10
Road 1；Wherein, n >=2.For example, each group of scan line can wrap containing 2 scan lines, each group of data line be can wrap containing 2
Data line；Alternatively, each group of scan line can wrap containing 3 scan lines, each group of data line be can wrap containing 3 data lines.
As shown in Fig. 2, each group of scan line includes two scan lines, such as first group of scan line includes scan line G11, G12,
Second group of scan line includes scan line G21, G22, and third group scan line includes scan line G31, G32, the 4th group of scan line
It include scan line G41, G42；First group of data line includes data line D11, D12, and second group of data line includes data line
D21, D22, third group data line include D31, D32, and the 4th group of data line includes D41, D42.
Each pixel circuit 1 is connect with the different scanning line in same group of scan line respectively, and each pixel electricity
Road 1, which further averages, not to be connect with the different data line in same group of data line.
Multiple groups scan line is used to be respectively connected to different scanning signals, and in any one group of scan line, there are n-1 pairs
The phase difference of the scanning signal of scan line access is same phase difference setting value, and in any one group of data line, there are n-1 pairs
The phase difference of the data-signal of data line access is the phase difference setting value, which is less than liquid crystal display panel
A vertical interval.Scanning signal in scan line needs synchronous with the data-signal on data line, that is to say, when there is pixel
When circuit 1 is opened, data line will charge to the pixel circuit 1.
Each pixel circuit 1 includes n thin film transistor (TFT) and a pixel electrode, in each pixel circuit 1
The grid of n thin film transistor (TFT) be correspondingly connected with respectively with n scan line in same group, and the n in each pixel circuit 1
One end in the source-drain electrode of a thin film transistor (TFT) is connect with the n data line in same group respectively, in each pixel circuit 1
The other end of the source-drain electrode of n thin film transistor (TFT) is connect with pixel electrode.As shown in figure 3, each pixel circuit 1 includes
2 thin film transistor (TFT)s T1, T2 and a pixel electrode 11.
It is T/n there are phase difference of the n-1 to the scanning signal that scan line accesses in any one group of scan line, and
It is T/n there are phase difference of the n-1 to the data-signal that data line accesses, wherein T is liquid crystal in any one group of data line
Show a vertical interval of panel.
It that is to say, same group of scan line will receive scanning signal every time t, t=T/n, by corresponding pixel electricity
Road 1 is opened, and same group of data line will receive data-signal and charge to corresponding pixel circuit 1 every time t.More specifically
, it that is to say, every a line pixel circuit 1, it is primary to turn on charging every time t.And in existing liquid crystal display panel, it is each
Row pixel circuit 1 is to open charging once every time t ', and t '=T=1/N, N are the refreshing frequency of liquid crystal display panel.
Every a line pixel circuit 1 in liquid crystal display panel provided by the invention opens the time of charging, with existing liquid crystal every time
Each opening charging duration of every a line pixel circuit 1 of display panel is identical, but liquid crystal provided by the invention
It is higher to show that every a line pixel circuit 1 of panel opens the frequency to charge.
Therefore, liquid crystal display panel provided by the invention, when the refreshing frequency of each scan line remains unchanged, every row
The charging time of pixel circuit 1 is n times of every 1 charging time of a line pixel circuit in existing liquid crystal display panel, can be very big
In the charging time for improving pixel circuit 1, it is able to solve large scale, the undercharge problem of high-resolution liquid crystal display panel；Together
When, moreover it is possible to the refreshing frequency of liquid crystal display panel is promoted on the whole, effectively solves the hangover of picture shown by liquid crystal display panel
Problem promotes display image quality.
Further, in any one group of scan line, n scan line is arranged successively, wherein sweeping in kth scan line
Retouching the phase difference between the scanning signal in+1 scan line of signal and kth is T/n.In any one group of data line, n data
Line is arranged successively, wherein the phase between data-signal on+1 data line of the data-signal on kth data line and kth
Difference is T/n.
The resolution ratio of liquid crystal display panel is not less than 4k, such as can be 4k (4096 × 2160 pixel resolutions), 8k
(7680 × 4320 pixel resolutions), 16k (15360 × 8640 pixel resolutions) etc., and the size of liquid crystal display panel
Not less than 65 cun, such as it can be 65 cun, 75 cun, 85 cun etc..
Pixel circuit 1 with a line is connect with same group of scan line, the pixel circuit 1 of same row and same group of data
Line connection, and the pixel circuit 1 that do not go together and the connection of different groups of scan line, the pixel circuit 1 of different lines and different groups of number
It is connected according to line.
The present invention also provides a kind of driving method of liquid crystal display panel, which is applied to above-mentioned liquid crystal display
In panel, the driving method of liquid crystal display panel includes the following steps:
Scanning signal successively is conveyed to first scan line in each group of scan line of liquid crystal display panel, is opened line by line
Pixel circuit 1, and data-signal is conveyed to the first data line in each group of data line, and open last line pixel every time
After circuit, pixel circuit 1 is opened line by line again again；
Scanning signal is being conveyed by the kth scan line to first group, the first row pixel circuit is being opened every time and passes through
After setting time, scanning signal successively is conveyed to+1 scan line of kth in each group of scan line of liquid crystal display panel, line by line
Pixel circuit 1 is opened, and conveys data-signal to+1 data line of kth in each group of data line；Wherein, k is successively got from 1
n-1。
Setting time is T/n, wherein T is a vertical interval of liquid crystal display panel.
For example, liquid crystal display panel includes 1080 row pixel circuits 1, each group of scan line includes 2 scan lines, often
One group of data line includes 2 data lines.Scanning signal successively first is conveyed to first scan line in each group of scan line,
Pixel circuit 1 is successively opened line by line, while conveying data-signal to the first data line in each group of data line, is opening picture
After plain circuit 1, conveying data-signal to pixel circuit 1 charges.When first article of scan line to the 1080th group of scan line is defeated
It send scanning signal and then conveys scanning signal to first scan line of first group of scan line again, so circulation is gone down.
After first article of scan line in the 540th group of scan line opens the 540th row pixel circuit 1, first group is just given
Article 2 scan line in scan line conveys scanning signal, and the pixel circuit 1 of the first row is opened, meanwhile, give each group of data
Article 2 data line in line conveys data-signal, later again successively to the 2nd, 3,4 ..., second in 1080 groups of scan lines
Scan line conveys scanning signal, line by line opens corresponding pixel circuit 1.When the Article 2 scan line to the 1080th group conveys
Scanning signal and then scanning signal is conveyed again to first group of Article 2 scan line again, so circulation is gone down.
As shown in figure 4, each group of scan line is just received every the time of H/2 in liquid crystal display panel provided by the invention
Single pass signal, H=1/N, wherein N is the refreshing frequency of existing liquid crystal display panel, and corresponding pixel circuit 1 is opened
It charges, for existing liquid crystal display panel, every row pixel circuit 1 opens one times of the frequency upgrading of charging,
As shown in Figure 5.
In conclusion liquid crystal display panel provided by the invention and its driving method, each pixel circuit can lead to
Multi-strip scanning line is crossed successively to open and convey data-signal by multiple data lines, it is all defeated during pixel circuit is opened every time
It send data-signal to charge it, can integrally improve the refreshing frequency of liquid crystal display panel in this way, and can make every
The charging time of a pixel circuit doubles, and then promotes the display image quality of liquid crystal display panel, effectively solution liquid crystal display panel
The tailing problem of shown picture.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention
Protection scope.
Claims (8)
1. a kind of liquid crystal display panel characterized by comprising multiple groups scan line and multi-group data line, each group of scan line are equal
It include n scan line, each group of data line includes n data line, the multiple groups scan line and the multi-group data line
It intersects and marks off multiple pixel regions, a pixel circuit is provided in each pixel region；Wherein, n >=2；
Each described pixel circuit is connect with the different scanning line in same group of scan line respectively, and each described pixel
Circuit, which further averages, not to be connect with the different data line in same group of data line；
The multiple groups scan line is used to be respectively connected to different scanning signals, and in any one group of scan line, there are n-1
Phase difference to the scanning signal of scan line access is same phase difference setting value, and in any one group of data line, there are n-
The phase difference of the data-signal of 1 pair of data line access is the phase difference setting value, and the phase difference setting value is less than liquid crystal
One vertical interval of display panel.
2. liquid crystal display panel according to claim 1, which is characterized in that each described pixel circuit includes n
A thin film transistor (TFT) and a pixel electrode, the grid of n thin film transistor (TFT) in each described pixel circuit is respectively and together
N scan line in one group is correspondingly connected with, and one in the source-drain electrode of n thin film transistor (TFT) in each described pixel circuit
End is connect with the n data line in same group respectively, the source-drain electrode of n thin film transistor (TFT) in each described pixel circuit
The other end is connect with the pixel electrode.
3. liquid crystal display panel according to claim 1, which is characterized in that in any one group of scan line, there are n-1
Phase difference to the scanning signal of scan line access is T/n, and in any one group of data line, there are n-1 to connect data line
The phase difference of the data-signal entered is T/n, wherein T is a vertical interval of liquid crystal display panel.
4. liquid crystal display panel according to claim 3, which is characterized in that in any one group of scan line, n scan line
It is arranged successively, wherein the phase difference between scanning signal in+1 scan line of the scanning signal in kth scan line and kth
For T/n；
In any one group of data line, n data line is arranged successively, wherein data-signal and kth+1 on kth data line
The phase difference between data-signal on data line is T/n.
5. liquid crystal display panel according to claim 1, which is characterized in that the resolution ratio of the liquid crystal display panel is not small
In 4k, and the size of the liquid crystal display panel is not less than 65 cun.
6. liquid crystal display panel according to claim 1, which is characterized in that with the pixel circuit of a line and same group sweep
Line connection is retouched, the pixel circuit that the pixel circuit of same row connect with same group of data line, and do not go together is swept from different groups
Line connection is retouched, the pixel circuit of different lines is connected from different groups of data line.
7. a kind of driving method of liquid crystal display panel, which is characterized in that the liquid crystal display panel includes: multiple groups scan line
With multi-group data line, each group of scan line includes n scan line, and each group of data line includes n data line, described
Multiple groups scan line and the multi-group data line, which intersect, marks off multiple pixel regions, is provided with one in each pixel region
A pixel circuit；Wherein, n >=2；
Each described pixel circuit is connect with the different scanning line in same group of scan line respectively, and each described pixel
Circuit, which further averages, not to be connect with the different data line in same group of data line；
The driving method of the liquid crystal display panel includes the following steps:
Scanning signal successively is conveyed to first scan line in each group of scan line of the liquid crystal display panel, is opened line by line
Pixel circuit, and data-signal is conveyed to the first data line in each group of data line, and open last line pixel every time
After circuit, pixel circuit is opened line by line again again；
Scanning signal is being conveyed by the kth scan line to first group, the first row pixel circuit is being opened and passes through setting time
Afterwards, scanning signal successively is conveyed to+1 scan line of kth in each group of scan line of liquid crystal display panel, opens pixel line by line
Circuit, and data-signal is conveyed to+1 data line of kth in each group of data line；Wherein, k successively gets n-1 from 1.
8. the driving method of liquid crystal display panel according to claim 7, which is characterized in that the setting time is T/n,
Wherein, T is a vertical interval of the liquid crystal display panel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811102718.6A CN109164653A (en) | 2018-09-20 | 2018-09-20 | A kind of liquid crystal display panel and its driving method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811102718.6A CN109164653A (en) | 2018-09-20 | 2018-09-20 | A kind of liquid crystal display panel and its driving method |
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| CN111179807A (en) * | 2019-04-09 | 2020-05-19 | 友达光电股份有限公司 | Display panel and driving method thereof |
| CN113936564A (en) * | 2021-10-09 | 2022-01-14 | 惠州华星光电显示有限公司 | Display panel and display terminal |
| CN116453463A (en) * | 2023-04-27 | 2023-07-18 | 惠科股份有限公司 | Display panel and display terminal |
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| CN116453463A (en) * | 2023-04-27 | 2023-07-18 | 惠科股份有限公司 | Display panel and display terminal |
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