CN105096897B - Liquid Crystal Display And Method For Driving - Google Patents
Liquid Crystal Display And Method For Driving Download PDFInfo
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- CN105096897B CN105096897B CN201510605330.8A CN201510605330A CN105096897B CN 105096897 B CN105096897 B CN 105096897B CN 201510605330 A CN201510605330 A CN 201510605330A CN 105096897 B CN105096897 B CN 105096897B
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Abstract
The present invention provides a kind of Liquid Crystal Display And Method For Driving, and the liquid crystal display includes：The a plurality of grid line arranged in a column direction；The multiple data lines arranged in the row direction；Data driver is configured as to multiple data lines transmission data signal；Pixel unit, repeated arrangement in the row direction, include four sub-pixels arranged along line direction, wherein, four sub-pixels are respectively red sub-pixel, green sub-pixels, blue subpixels and white sub-pixels, four sub-pixels are commonly connected to a grid line and each sub-pixel is connected respectively to a data line, wherein, when the data-signal of continuous two identical polars is sent to a pair of of adjacent subpixels in a pixel unit by data driver, data driver ensures for the first data-signal in the data-signal of continuous two identical polars to be sent to other sub-pixels other than white sub-pixels.The present invention can be effectively reduced the crosstalk of existing RGBW display.
Description
Technical field
All things considered of the present invention is related to LCD Technology field, more particularly to a kind of liquid crystal display and its driving side
Method.
Background technology
Liquid crystal display or LCD (Liquid Crystal Display), be planar ultra-thin display equipment, it by
A certain number of colored or monochrome pixels compositions, are positioned in front of light source or reflecting plate.Liquid crystal display power consumption is very low, and
Have the characteristics that high image quality, small, light-weight, therefore favored by everybody, becomes the mainstream of display.Liquid crystal display is
It is widely used in various electronic products, for example, tool shows computer equipment, mobile phone or the digital frame etc. of screen.
Under the driving that high PPI (number of pixels that per inch is possessed) demands and low cost require, develop at present
Go out RGBW display technologies, innovatively increases white sub-pixels on the basis of traditional RGB three primary colours.Due to the sub- picture of white
The penetrance of element is higher, and the addition of white sub-pixels is so that RGBW display technologies are promoted than the light transmittance of traditional RGB display technologies
50% or more, screen intensity, energy consumption etc. RGBW display technologies performance more preferably.
Fig. 1 is the pixel arrangement figure of existing RGBW display, in order to keep polarity of voltage symmetrical and more power saving, voltage
Polar arrangement can domain of the existence unevenness situation, as shown in Figure 1, polarity of voltage put in order for it is positive and negative, negative, positive, negative,
Just, positive and negative, and the sequence of the positive and negative repeated arrangement of polarity of voltage different from general RGB display therefore can be specific
Crosstalk is generated under detection picture.
Fig. 2 is the common picture figure for detecting crosstalk, and periphery is the picture that grayscale value is 127, and centre is grayscale
The complete white picture that value is 255.Fig. 3 is the crosstalk picture figure carried out to the RGBW display in Fig. 1 after crosstalk detection, in picture
The regions A " are brighter than a-quadrant, and the regions B " are darker than B area, it can be seen that crosstalk is than more serious.
Invention content
In view of this, it is an object of the present invention to provide a kind of Liquid Crystal Display And Method For Driving, to reduce existing RGBW
The crosstalk of display.
One side according to an exemplary embodiment of the present invention provides a kind of liquid crystal display, including：It arranges in a column direction
A plurality of grid line；The multiple data lines arranged in the row direction；Data driver is configured as sending out to the multiple data lines
Send data-signal；Pixel unit, includes four sub-pixels arranged along line direction, and the pixel unit repeats in the row direction
Arrangement, wherein four sub-pixels are respectively red sub-pixel, green sub-pixels, blue subpixels and white sub-pixels, institute
State that four sub-pixels are commonly connected to a grid line and each sub-pixel is connected respectively to a data line, wherein work as number
When the data-signal of continuous two identical polars being sent to a pair of of adjacent subpixels in a pixel unit according to driver, number
Ensure the first data-signal in the data-signal of continuous two identical polars being sent in addition to white according to driver
Other sub-pixels except sub-pixel.
Optionally, in each pixel unit, only a pair of of adjacent subpixels receive identical polar from data driver
Data-signal.
Optionally, in two adjacent pixel units, four sub-pixels receive the data of positive polarity from data driver
Signal, four additional sub-pixel receive the data-signal of negative polarity from data driver.
Optionally, the liquid crystal display is RGBW display.
Optionally, the data line of the first data-signal in the data-signal for transmitting continuous two identical polars
Direction on, include two green sub-pixels, a red sub-pixel and a blue subpixels according to every four sub-pixels
Mode arranges sub-pixel.
Another aspect according to an exemplary embodiment of the present invention provides a kind of driving method of liquid crystal display, the liquid crystal
Display includes：The a plurality of grid line arranged in a column direction；The multiple data lines arranged in the row direction；Data driver,
It is configured as to the multiple data lines transmission data signal；Pixel unit includes four sub-pixels arranged along line direction,
Pixel unit repeated arrangement in the row direction, wherein four sub-pixels are respectively red sub-pixel, the sub- picture of green
Element, blue subpixels and white sub-pixels, four sub-pixels are commonly connected to a grid line and each sub-pixel point
It is not connected to a data line, the driving method includes：When the data-signal of continuous two identical polars is sent to one
When a pair of of adjacent subpixels in pixel unit, data driver ensures will be in the data-signal of continuous two identical polars
First data-signal be sent to other sub-pixels other than white sub-pixels.
The Liquid Crystal Display And Method For Driving provided according to an exemplary embodiment of the present, exemplary according to the present invention
In the Liquid Crystal Display And Method For Driving that embodiment provides, data driver will be in the data-signal of continuous two identical polars
First data-signal be sent to other sub-pixels other than white sub-pixels, avoid data-driven in the prior art
The case where first data-signal in the data-signal of continuous two identical polars is sent to white sub-pixels by device, due to it
His penetrance of sub-pixel is lower than white sub-pixels, can be effectively reduced the crosstalk of liquid crystal display.
Description of the drawings
By the detailed description carried out below in conjunction with the accompanying drawings, above and other purpose of exemplary embodiment of the present, spy
Point and advantage will become apparent, wherein：
Fig. 1 shows the pixel arrangement figure of existing RGBW display；
Fig. 2 shows the common picture figures for detecting crosstalk；
Fig. 3 shows to carry out the RGBW display in Fig. 1 in the crosstalk picture figure after crosstalk detection；
Fig. 4 shows the structural schematic diagram of liquid crystal display according to an exemplary embodiment of the present invention；
Fig. 5 show by liquid crystal display shown in Fig. 4 carry out crosstalk detection a-quadrant and the regions A " picture input and
Picture element signal schematic diagram；
Fig. 6 show by liquid crystal display shown in Fig. 4 carry out crosstalk detection B area and the regions B " picture input and
Picture element signal schematic diagram；
Fig. 7 shows to carry out liquid crystal display shown in Fig. 4 in crosstalk picture figure after crosstalk detection.
Specific implementation mode
Exemplary embodiment of the present invention is reference will now be made in detail, examples of the embodiments are shown in the accompanying drawings, wherein phase
Same label refers to identical component always.It will illustrate the embodiment by referring to accompanying drawing below, to explain this hair
It is bright.
Fig. 4 shows the structural schematic diagram of liquid crystal display according to an exemplary embodiment of the present invention.Here, the liquid crystal
Show that device can be RGBW display.As shown in figure 4, the liquid crystal display is mainly including a plurality of gate lines G 1 to Gm, a plurality of number
According to line D1 to Dn, data driver 10 and pixel unit 20.
The a plurality of gate lines G 1 extends to Gm on column direction (almost vertical direction), the multiple data lines D1 to Dn
Extend on line direction (level of approximation direction), the data driver 10 to the multiple data lines D1 to Dn transmission datas believe
Number.
The repeated arrangement in the row direction of the pixel unit 20, includes four sub-pixels arranged along line direction.It is described
Four sub-pixels are respectively red sub-pixel R, green sub-pixels G, blue subpixels B and white sub-pixels W.Each pixel unit
Be connected to a grid line, that is to say, that the red sub-pixel R of each pixel unit, green sub-pixels G, blue subpixels B and
White sub-pixels W is commonly connected to a grid line.In addition, the red sub-pixel R of each pixel unit, green sub-pixels G, indigo plant
Sub-pixels B and white sub-pixels W are connected respectively to a data line.
Each sub-pixel receives the data-signal that data driver 10 is sent by data line.The data-signal has
Positive and negative two kinds of polarity.In each pixel unit 20, only a pair of of adjacent subpixels receive identical polar from data driver 10
Data-signal.For example, come in pixel unit 20 in Fig. 4 the 3rd and the 4th sub-pixel (i.e. respectively with data line D3,
Two adjacent subpixels of data line D4 connections) polarity of data-signal that receives all is negative.It is appreciated that receiving identical polar
The adjacent subpixels of data-signal be not limited to the sub-pixel for coming the 3rd and the 4th in Fig. 4, can also be and come other
The adjacent subpixels of position, for example, the sub-pixel for coming the 1st and the 2nd sub-pixel, coming the 2nd and the 3rd.
In two adjacent pixel units 20, four sub-pixels receive the data letter of positive polarity from data driver 10
Number, four additional sub-pixel receives the data-signal of negative polarity from data driver 10.For example, being connect with gate lines G 1 in Fig. 4
Two adjacent pixel units 20 in eight sub-pixels in, four sub-pixels for receiving the data-signal of positive polarity are respectively
The sub-pixel for coming the 2nd, the 5th, the 7th and the 8th, four sub-pixels for receiving the data-signal of negative polarity are respectively to arrange
In the 1st, the 3rd, the 4th and the 6th sub-pixel, i.e., the polarity of the data-signal of described eight sub-pixels reception is in order
It is respectively negative, positive, negative, negative, positive, negative, positive, just.It is appreciated that the polar alignment for the data-signal that eight sub-pixels receive
Mode is not limited to the mode in Fig. 4, can also be other arrangement modes.For example, it is positive and negative, negative, positive, negative, positive, positive and negative, or
It is negative, positive, positive and negative, positive and negative, negative, positive or positive and negative, just, it is positive and negative, positive and negative, negative etc..
In order to reduce the influence of crosstalk, when the data-signal of continuous two identical polars is sent to one by data driver 10
When a pair of of adjacent subpixels in a pixel unit 20, data driver 10 ensures the data of continuous two identical polars
First data-signal in signal is sent to other sub-pixels other than white sub-pixels W.As shown in figure 4, due to aobvious
Show that device includes the matrix of pixel cells that repeated arrangement is formed on line direction and column direction, is located at the sub-pixel reception of same row
The polarity of data-signal is identical, and the 1st row and the 3rd row do not include white sub-pixels W in Fig. 4, and in Fig. 4, data driver 10 will
The data-signal of continuous two negative polarity has been sent in the sub-pixel of the 3rd row and the 4th row, sub- picture of the 1st row to the 8th row
The polarity of data-signal that element receives is respectively：It is negative, positive, negative, negative, positive, negative, positive, just.
It is appreciated that data driver 10 also can by the data-signal of continuous two positive polarity be sent to the 3rd row and
In the sub-pixel of 4th row, correspondingly, the polarity of the data-signal of the sub-pixel reception of the 1st row to the 8th row is respectively：Just,
It is negative, positive, positive and negative, positive and negative, negative.Since the 1st row also do not include white sub-pixels W in Fig. 4, data driver 10 also can will be continuous
The data-signal of two identical polars has been sent in the sub-pixel of the 1st row and the 2nd row, correspondingly, the 1st row to the 8th row
The polarity of data-signal that receives of sub-pixel be respectively it is negative, negative, positive, negative, positive, positive and negative, just or just, it is positive and negative, positive and negative,
It is negative, positive, negative etc..
In addition, in the case where the arrangement mode of the sub-pixel of the matrix of pixel cells of liquid crystal display is other modes,
Data driver 10 will send corresponding polar data-signal to the sub-pixel of the 1st row to the 8th row respectively, to ensure continuous two
First data-signal in the data-signal of a identical polar is sent to other sub-pixels other than white sub-pixels.
Preferably due to the penetrance of green sub-pixels G is about the one third of white sub-pixels W, data driver 10
It includes green that the first data-signal in the data-signal of continuous two identical polars can be sent in matrix of pixel cells
In row more sub-pixels G, to more reduce the influence of crosstalk.For example, in Fig. 4, transmitting continuous two same poles
Property data-signal in first data-signal data line direction on (the 3rd row in), every four sub-pixels include two
Green sub-pixels G, a red sub-pixel R and a blue subpixels B comprising green sub-pixels G quantity be more than or
Equal to other row.
Fig. 5 show by liquid crystal display shown in Fig. 4 carry out crosstalk detection a-quadrant and the regions A " picture input and
Picture element signal schematic diagram, wherein A2 ", A3 " and A4 " be respectively in the pixel unit 20 in the regions A " come the 2nd, the 3rd
Position, the 4th sub-pixel signal, A2, A3 and A4 be respectively in the pixel unit 20 in a-quadrant come the 2nd, the 3rd, the
4 sub-pixel signals.It can be seen that shadow of the sub-pixel signal in A3 " due to the data-signal by two identical polars
Ring, pixel keep current potential when sub-pixel signal will be larger, this will so that the regions A " picture than a-quadrant picture more
It is bright.
Fig. 6 show by liquid crystal display shown in Fig. 4 carry out crosstalk detection B area and the regions B " picture input and
Picture element signal schematic diagram, wherein B2 ", B3 " and B4 " be respectively in the pixel unit 20 in the regions B " come the 2nd, the 3rd
Position, the 4th sub-pixel signal, B2, B3 and B4 be respectively in the pixel unit 20 in B area come the 2nd, the 3rd, the
4 sub-pixel signals.It can be seen that shadow of the sub-pixel signal in B3 " due to the data-signal by two identical polars
Ring, pixel keep current potential when sub-pixel signal will be smaller, this will so that the regions B " picture than B area picture more
Secretly.
Fig. 7 shows to carry out liquid crystal display shown in Fig. 4 in crosstalk picture figure after crosstalk detection.It can be seen that in Fig. 7
The picture degree partially bright compared with the picture of a-quadrant in the regions A " be significantly less than Fig. 3, picture and the areas B in the regions B " in Fig. 7
The picture in domain is significantly less than Fig. 3 compared to partially dark degree, that is to say, that shown in Fig. 4 of property embodiment according to embodiments of the present invention
The crosstalk of liquid crystal display be significantly less than the crosstalk of existing RGBW display shown in FIG. 1.
Exemplary embodiment according to the present invention also provides a kind of driving method of liquid crystal display.The liquid crystal display
With reference to shown in Fig. 4.The driving method includes：When the data-signal of continuous two identical polars is sent to a pixel unit
In a pair of of adjacent subpixels when, data driver ensures will be first in the data-signal of continuous two identical polars
Data-signal is sent to other sub-pixels other than white sub-pixels.
In the Liquid Crystal Display And Method For Driving provided according to an exemplary embodiment of the present, data driver will be even
The first data-signal continued in the data-signal of two identical polars is sent to other sub- pictures other than white sub-pixels
Element avoids data driver in the prior art and sends out the first data-signal in the data-signal of continuous two identical polars
The case where being sent to white sub-pixels can be effectively reduced liquid crystal since the penetrance of other sub-pixels is lower than white sub-pixels
Show the crosstalk of device.
It should be understood that it is computer-readable that liquid crystal display driving method according to an exemplary embodiment of the present invention, which can be realized,
Computer-readable code in recording medium.Computer readable recording medium storing program for performing can store can be read thereafter by computer system
The arbitrary data storage device of data.The example of computer readable recording medium storing program for performing includes：Read-only memory (ROM), arbitrary access
Memory (RAM), CD-ROM, tape, floppy disk, optical data storage devices and carrier wave are (such as logical through wired or wireless transmission path
Cross the data transmission of internet).Computer readable recording medium storing program for performing also can be distributed in the computer system of connection network, to calculate
Machine readable code stores and executes in a distributed manner.In addition, complete the present invention function program, code and code segment can easily by
The ordinary programmers in field related to the present invention explain within the scope of the present invention.
Although being particularly shown and describing the present invention, those skilled in the art with reference to its exemplary embodiment
It should be understood that in the case where not departing from the spirit and scope of the present invention defined by claim, form can be carried out to it
With the various changes in details.
Claims (5)
1. a kind of liquid crystal display, which is characterized in that including：
The a plurality of grid line arranged in a column direction；
The multiple data lines arranged in the row direction；
Data driver is configured as to the multiple data lines transmission data signal；
Pixel unit, includes four sub-pixels arranged along line direction, pixel unit repeated arrangement in the row direction,
In, four sub-pixels are respectively red sub-pixel, green sub-pixels, blue subpixels and white sub-pixels, described four
Sub-pixel is commonly connected to a grid line and each sub-pixel is connected respectively to a data line,
Wherein, a pair of of the phase being sent to the data-signal of continuous two identical polars when data driver in one pixel unit
When adjacent sub-pixel, data driver ensures the first data-signal hair in the data-signal of continuous two identical polars
It is sent to other sub-pixels other than white sub-pixels；
In each pixel unit, only a pair of of adjacent subpixels receive the data-signal of identical polar from data driver.
2. liquid crystal display according to claim 1, which is characterized in that in two adjacent pixel units, four sons
Pixel receives the data-signal of positive polarity from data driver, and four additional sub-pixel receives the number of negative polarity from data driver
It is believed that number.
3. liquid crystal display according to claim 2, which is characterized in that the liquid crystal display is RGBW display.
4. liquid crystal display according to any one of claims 1 to 3, which is characterized in that identical in described continuous two of transmission
Include two greens according to every four sub-pixels on the direction of the data line of first data-signal in polar data-signal
The mode of sub-pixel, a red sub-pixel and a blue subpixels arranges sub-pixel.
5. a kind of driving method of liquid crystal display, the liquid crystal display include：The a plurality of grid line arranged in a column direction；
The multiple data lines arranged in the row direction；Data driver is configured as to the multiple data lines transmission data signal；Picture
Plain unit, includes four sub-pixels arranged along line direction, pixel unit repeated arrangement in the row direction, wherein institute
It is respectively red sub-pixel, green sub-pixels, blue subpixels and white sub-pixels, four sub-pixels to state four sub-pixels
It is commonly connected to a grid line and each sub-pixel is connected respectively to a data line,
It is characterized in that, the driving method includes：When the data-signal of continuous two identical polars is sent to a pixel
When a pair of of adjacent subpixels in unit, data driver ensure by the data-signal of continuous two identical polars
First data-signal is sent to other sub-pixels other than white sub-pixels；In each pixel unit, only a pair of of phase
Adjacent sub-pixel receives the data-signal of identical polar from data driver.
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| CN106249489B (en) * | 2016-08-24 | 2019-09-17 | 武汉华星光电技术有限公司 | Liquid crystal display and its array substrate |
| CN106409208B (en) * | 2016-11-07 | 2019-04-16 | 上海中航光电子有限公司 | A kind of array substrate and its manufacturing method and display device |
| CN108877730A (en) * | 2018-09-14 | 2018-11-23 | 重庆惠科金渝光电科技有限公司 | A kind of image element structure and display panel |
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| JP4015090B2 (en) * | 2003-09-08 | 2007-11-28 | 株式会社東芝 | Stereoscopic display device and image display method |
| WO2007129425A1 (en) * | 2006-05-08 | 2007-11-15 | Sharp Kabushiki Kaisha | Liquid crystal display device |
| US20090073099A1 (en) * | 2007-09-14 | 2009-03-19 | Tpo Displays Corp. | Display comprising a plurality of pixels and a device comprising such a display |
| BR112012007425A2 (en) * | 2009-09-25 | 2016-12-13 | Sharp Kk | liquid crystal display device |
| KR101782054B1 (en) * | 2011-02-14 | 2017-09-26 | 엘지디스플레이 주식회사 | Liquid crystal display device and driving method thereof |
| US9099028B2 (en) * | 2013-06-28 | 2015-08-04 | Intel Corporation | RGBW dynamic color fidelity control |
| CN204270613U (en) * | 2014-12-23 | 2015-04-15 | 京东方科技集团股份有限公司 | A kind of dot structure, display base plate and display device |
| CN104867468B (en) * | 2015-06-04 | 2017-05-03 | 武汉华星光电技术有限公司 | Display panel and display device |
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