CN104658489B - A kind of driving method and its driving IC for LCD panel - Google Patents
A kind of driving method and its driving IC for LCD panel Download PDFInfo
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- CN104658489B CN104658489B CN201310590652.0A CN201310590652A CN104658489B CN 104658489 B CN104658489 B CN 104658489B CN 201310590652 A CN201310590652 A CN 201310590652A CN 104658489 B CN104658489 B CN 104658489B
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Abstract
The object of the present invention is to provide a kind of driving method for the LCD panel based on 2n primary color sub-pixels structures and its driving IC.Wherein, the array of sub-pixels of the LCD panel is the sub-pixel structure of M*N and the LCD panel based on 2n primary colours；The driving method utilizes the driving IC of the LCD panel based on 3 primary color sub-pixels structures, and the signal source port number of the driving IC is at least N；In the row direction, the sub-pixel arranged using the integral multiple of 2n is a unit, the sub-pixel arranged for the same integral multiple of continuous 2n in each two sequential cells, with 2 row for a subelement, the driving IC 2 signal source channels corresponding with each subelement are cross-connected to 2 row sub-pixels in corresponding subelement, so that the polarity of the sub-pixel of same color is complementary in often going.Compared with prior art, driving method of the invention causes in the row direction, and the polarity of the sub-pixel of each color is complementary, so that the offset of common electric voltage will not occurs, to avoid the display deviation of color.
Description
Technical field
The present invention relates to LCD panel technical field, more particularly to a kind of actuation techniques for LCD panel.
Background technology
Traditional liquid crystal panel（LCD）Possess the specification of three sub-pixel divisions, three sub-pixels point using a pixel
Red is not shown（R）, green（G）And blueness（B）Three primary colors.Trichromatic display is to be respectively coated difference on three sub-pixels
The color blocking coating of color is come what is realized, and in general color blocking coating can absorb the 2/3 of white backlight so that the entirety of liquid crystal module
Transmitance is not high.
For such case, there are a kind of 4 new sub-pixels specifications, in addition to three primary colors, can also additionally show
White（W）Or other colors.If sub-pixel is coated with transparent color blocking, white can be shown, and backlight illumination does not damage
Lose, improve module overall brightness and penetrance.Therefore in general, in order to obtain the brightness of higher, 4 sub-pixels can be used
The setting of RGBW.
Based on 4 sub-pixels specifications, a variety of color arranging rules different from conventional sub-pixel division methods have been derived
And its corresponding driving method.In this kind of method, a pixel is no longer strictly divided into 4（Or 3 or other are multiple）Sub- picture
Element, but division number is reduced to a certain extent, it the substitute is and be combined image processing algorithm with panel construction, really
Panel is protected in the case where non-traditional RGB is constructed, remains to receive traditional RGB image signal, and show it is identical with original image or
Close image.
The pixel-matrix of liquid crystal panel is when being applied in voltage, in order to protect liquid crystal molecule, can only be applied in alternating voltage,
This generates the concept of pixel polarity.The modes such as polarity distribution is generally a little overturn, row upset, row upset, frame upset, it is various
Mode respectively has good and bad and suitable application scenario.But purport is provided to obtain good display effect, lower power consumption, and
More easily drive process.
For the LCD panel of 3 sub-pixels structures, since it is arranged with RGB, and drive the polarity output of IC for+-
+ -+- ..., this causes the polarity always complementation of each monochrome sub-pixels on line direction.
However, for the LCD panel of 4 sub-pixels structures, its polarity distribution is then complicated more.
For example, in a kind of liquid crystal panel of tetra- sub-pixels structures of RGBW, its distribution of color defers to RGWB
WBRG
Periodic cycle.Wherein, R sub-pixels form a pixel, B sub-pixels and W sub-pixel composition one with G sub-pixel
A pixel.Due to its unique color arrangement mode, the pixel polarity arrangement model such as common point upset, row upset is in this face
Easily cause the various display problems for being not on conventional RGB screens on plate.
Fig. 1 shows the liquid crystal panel of the 4 sub-pixels structures such as foregoing color arrangement mode, it drives the polarity selection of IC
Circuit is based on point and overturns.Here, being concise explanation, 4 groups of RGWB are only shown
WBRG
Periodic cycle.
Cooperation refer to Fig. 2, and Fig. 2 a show the one kind of the liquid crystal panels of 4 sub-pixels structures shown in Fig. 1 when overturning
There may be show undesirable image conditions.When being displayed in full screen red, there are voltage coupling between each circuit node on panel
Situation.All R sub-pixels are all turned on screen, other all sub-pixels are turned off.
As shown in Figure 2 b, the part sub-pixel of the odd-numbered line such as the 1st row and the 3rd row is beaten for positive polarity and all in present frame
Open, but the corresponding sub-pixel for the negative polarity do not opened at the same time.The variation in voltage of so full line sub-pixel is overall towards positive polarity
Direction deviates.Each pixel electrode of 1st row and the 3rd row is respectively between public electrode there are coupled capacitor, therefore
Cause the voltage V on public electrodecomCoupled towards the positive direction and deviate from common potential.Since the opening degree of sub-pixel depends on
Potential difference between pixel electrode and public electrode, after public electrode voltages deviate common potential, each sub-pixel
Voltage between public electrode causes the undertension of the sub-pixel of standard-sized sheet on the 1st row and the 3rd row there occurs deviation, and
Then there is small voltage on the sub-pixel of contract fully.There have been deviation for the display color of such 1st row and the 3rd row.
The situation of the even number line such as the 2nd row and the 4th row is also similar, simply becomes common electric voltage VcomIntegrally towards losing side
To deviation, there is deviation in the display color for finally also resulting in the 2nd row and the 4th row.
Integrate, under the pixel polarity distribution situation shown in Fig. 1 and Fig. 2 a, common electric voltage VcomThere is strange row and idol
The situation that row is each changed to opposite direction coupling, causes full frame color deviation occur.Also, such case is in full screen display RGB
In any one primary colors when can all occur, and this is a kind of very common display situation, therefore the pixel shown in Fig. 1 and Fig. 2 a
Polarity distribution can damage the service condition of the terminal of the liquid crystal panel using this arrangement.
It is aobvious that Fig. 3 a show that alternatively possible in upset of the liquid crystal panels of 4 sub-pixels structures shown in Fig. 1 exists
Show undesirable image conditions.When full screen display cyan（Cyan, is the 1 of primary colors G and B:1 mixing）When, each circuit node on panel
Between the coupling of existing voltage situation.All G, B sub-pixels are opened on screen, and every other sub-pixel is turned off.
As shown in Figure 3b, the part sub-pixel of the odd-numbered line such as the 1st row and the 3rd row is beaten for negative polarity and all in present frame
Open, but the corresponding sub-pixel for the positive polarity do not opened at the same time.The variation in voltage of so entire row of pixels is overall towards negative polarity side
To offset.Each pixel electrode of 1st row and the 3rd row causes respectively between public electrode there are coupled capacitor
Voltage V on public electrodecomCoupled towards negative sense and deviate from common potential.
The situation of the even number line such as the 2nd row and the 4th row is also similar, simply becomes common electric voltage VcomEntirety is towards the positive direction
Deviate, deviation occurs in the display color for finally also resulting in the 2nd row and the 4th row.
As can be seen that Fig. 3 a and b example shown and Fig. 2 a and b example showns are same types, but show shown in Fig. 3 a and b
The degree of example is more serious, so that it can equally damage the service condition of the terminal of the liquid crystal panel using this arrangement.
Fig. 4 shows to defer to RGWB
WBRG
The liquid crystal panel of 4 sub-pixels structures of color arrangement mode, it drives the polarity selecting circuit of IC to be turned over based on row
Turn.Similarly, it is concise explanation, Fig. 4 still only shows the periodic cycle of 4 groups of RGWB.
Fig. 5 shows the one kind of the liquid crystal panel of 4 sub-pixels structures shown in Fig. 4 when arranging upset there may be display not
Good image conditions.During to be displayed in full screen red, the correspondence of color and polarity on panel.All R sub-pixels are opened on screen,
Every other sub-pixel is turned off.The polarity of all R pixels is just at this time, it is clear that at the time of other frame, all R
The polarity of sub-pixel all can be again negative.That is, at the time of any one specific frame, the polarity of all R sub-pixels is all
Consistent.
It should be noted that although being illustrated herein using R sub-pixels, those skilled in the art will be understood that pair
In the sub-pixel of any one color, all there are polarity characteristic consistent all the time, come without any homochromy but reverse polarity
Compensate this polarity trend.In this case, if VcomVoltage is not in suitable current potential, the R sub-pixels of all positive polaritys
Color and the colors of R sub-pixels of all negative polarity just occur deviation, that is, the integral color of positive frame and negative frame is different,
So as to cause to flicker（flicker）.
The content of the invention
The object of the present invention is to provide a kind of driving method for the LCD panel based on 2n primary color sub-pixels structures and its
Drive IC.
According to an aspect of the invention, there is provided a kind of driving method for LCD panel, wherein, the LCD panel
Array of sub-pixels be the sub-pixel structure of M*N and the LCD panel based on 2n primary colours, n is the integer more than or equal to 2；
Wherein, which utilizes the driving IC of the LCD panel based on 3 primary color sub-pixels structures；
Wherein, which includes：
- in the row direction, the sub-pixel arranged using the integral multiple of 2n is a unit, for continuous in each two sequential cells
The sub-pixel of the same integral multiple row of 2n, with 2 row for a subelement, by the driving IC 2 letters corresponding with each subelement
Number source channels cross-connect to 2 row sub-pixels in corresponding subelement so that in often going the sub-pixel of same color polarity
It is complementary.
According to another aspect of the present invention, a kind of driving IC for LCD panel is additionally provided, wherein, the LCD faces
The array of sub-pixels of plate is the sub-pixel structure of M*N and the LCD panel based on 2n primary colours, and n is the integer more than or equal to 2；
Wherein, driving IC is configured as：
- signal source port number is N；
- in the row direction, N number of signal source channel sequence of driving IC is connected to the sub-pixel of respective column, and with 2n
Row sub-pixel is a unit so that the opposite polarity of the sub-pixel of same color in two neighboring unit.
Compared with prior art, the invention enables can utilize existing any LCD faces based on 3 primary color sub-pixels structures
The driving IC of plate, to drive based on the LCD panel that 2n primary color sub-pixels structure and array of sub-pixels are M*N, as long as driving IC
Signal source port number be at least N.Also, the driving method of the present invention causes in the row direction, the sub-pixel of each color
Polarity is complementary, so that the offset of common electric voltage will not occurs, to avoid the display deviation of color.
In addition, present invention also offers a kind of special driving IC to be applied to the sub-pixel structure based on 2n primary colours
LCD panel, the array of sub-pixels of LCD panel is M*N, and the signal source port number of driving IC is N, in each letter of driving IC
Number source channels are linked in sequence to the sub-pixel of respective column, and the output polarity of each signal source causes the son of same color in often going
The polarity of pixel is complementary.
Brief description of the drawings
By reading the detailed description made to non-limiting example made with reference to the following drawings, of the invention is other
Feature, objects and advantages will become more apparent upon：
Fig. 1 shows of the prior art a kind of based on the partially schematic of a liquid crystal panel of 4 sub-pixels structures of upset
Figure；
Fig. 2 a show a kind of in upset of the liquid crystal panels of 4 sub-pixels structures shown in Fig. 1, and there may be display
The schematic diagram of undesirable image conditions；
Fig. 2 b show under undesirable image conditions of display shown in Fig. 2 a the often common electric voltage V of row sub-pixelcomSchematic diagram；
It is aobvious that Fig. 3 a show that alternatively possible in upset of the liquid crystal panels of 4 sub-pixels structures shown in Fig. 1 exists
Show the schematic diagram of undesirable image conditions；
Fig. 3 b show under undesirable image conditions of display shown in Fig. 3 a the often common electric voltage V of row sub-pixelcomSchematic diagram；
Fig. 4 shows that the part of the liquid crystal panel of another 4 sub-pixels structures based on row upset of the prior art is shown
It is intended to；
Fig. 5 shows the one kind of the liquid crystal panel of 4 sub-pixels structures shown in Fig. 4 when arranging upset there may be display not
The schematic diagram of good image conditions；
Fig. 6 shows the schematic diagram of the polarity distribution mode of the liquid crystal panel of 4 sub-pixels structure according to the present invention；
Fig. 7 a show sub-pixel polarity of the liquid crystal panel of 4 sub-pixels structures shown in Fig. 6 when being displayed in full screen red
The schematic diagram of distribution；
Fig. 7 b show in the case of display shown in Fig. 7 a the often common electric voltage V of row sub-pixelcomSchematic diagram；
Fig. 8 a show sub-pixel polarity of the liquid crystal panel of 4 sub-pixels structures shown in Fig. 6 when being displayed in full screen cyan
The schematic diagram of distribution；
Fig. 8 b show in the case of display shown in Fig. 8 a the often common electric voltage V of row sub-pixelcomSchematic diagram；
Fig. 9 shows the exemplary polarity selection connection diagram of one of driving method according to the present invention；
Figure 10 shows another exemplary polarity selection connection diagram of driving method according to the present invention；
Figure 11 shows the part connection diagram of a kind of driving IC according to the present invention and LCD panel.
The same or similar reference numeral represents the same or similar component in attached drawing.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
It is contemplated that applied to the LCD panel based on 2n primary color sub-pixels structures, here, n is whole more than or equal to 2
Number, that is, present invention can apply to the LCD panel based on even number primary colours, such as applied to the son based on 4 primary colours, 6 primary colours ...
The LCD panel of dot structure, its array of sub-pixels are M*N.Wherein each pixel is by the even number sub-pixel less than or equal to 2n
Form.For example, for the LCD panel of 4 primary colours, wherein each pixel can by 2 sub-pixels or 4 sub-pixel groups into；For 6 bases
The LCD panel of color, wherein each pixel can by 2 sub-pixels, 4 sub-pixels or 6 sub-pixel groups into；And so on.
For purposes of illustration only, more herein illustrated with the LCD panel based on 4 primary color sub-pixels structures, however, this area
Technical staff will be understood that the citing is only used for illustrating the purpose of the present invention, and be not construed as to any of the present invention
Limitation, other any LCD panel based on 2n primary color sub-pixels structures for being applicable to the present invention, still falls within patent of the invention
Within protection domain.
Further, for the LCD panel based on 4 primary color sub-pixels structures, 4 primary colours therein can be any 4 kinds of face
Color, especially and without loss of generality, 4 primary colours are a kind of red, green, blue and any other color.Especially, this other
A kind of color of anticipating is white.
Similarly, for purposes of illustration only, being illustrated originally using red, green, blueness and white as 4 primary colours more herein
The LCD panel based on 4 primary color sub-pixels structures of invention.However, those skilled in the art will be understood that the citing is only used for solving
The purpose of the explanation present invention is released, and is not construed as any limitation of the invention, other any 4 kinds of colors, as it is available
To form the LCD panel based on 4 primary color sub-pixels structures, then still fall within scope of patent protection of the invention.
Further, for purposes of illustration only, herein using the arrangement mode of red, green, blueness and white as RGWB
WBRG
To illustrate.Also, wherein R sub-pixels form a pixel with G sub-pixel, and B sub-pixels are formed with W sub-pixel
One pixel.However, those skilled in the art will be understood that the citing is only used for illustrating the purpose of the present invention, without answering
It is considered as any limitation of the invention, other 4 color arrangement modes and/or suitable pixel composition structure/quantity are still fallen within
Within the scope of patent protection of the present invention.
Further, since the driving method in the present invention can utilize any existing LCD faces based on 3 primary color sub-pixels structures
The driving IC of plate is carried out, as long as the signal source port number of driving IC（source channel）No less than N, and driving IC
Polarity selecting circuit can be it is existing except based on row upset polarity selecting circuit in addition to either polarity selection circuit, it is all
Polarity selecting circuit such as based on row upset, the polarity based on a polarity selecting circuit of upset or based on frame upset select electricity
Road.Wherein, polarity selecting circuit and base based on single-point upset can also be further comprised based on a polarity selecting circuit for upset
In the polarity selecting circuit of multiple spot upset.
The LCD panel of existing 3 primary colours structure, it is consistent that the columns of its sub-pixel drives the signal source port number of IC with it
It is and one-to-one.
Therefore, the signal source port number of the driving IC of existing various 3 primary colours LCD panel is as follows：
FHD screens 1920*1080（Resolution ratio）The signal source port number of driving IC be 1080*3=3240；
HD screens 1280*720（Resolution ratio）The signal source port number of driving IC be 720*3=2160；
QHD screens 960*540（Resolution ratio）The signal source port number of driving IC be 540*3=1620；
The signal source port number of the driving IC of WVGA screens is 480*3=1440.
For example, the resolution level pel array for working as the LCD panel that the present invention is applied is 960*1080, the LCD panel institute
The signal source port number needed is N=1080, then it drives what IC can use either signal source channels number more than or equal to 1080
The driving IC of existing 3 primary colours LCD panel, such as the driving IC of driving IC, HD screen 1280*720 of FHD screens 1920*1080
Or the driving IC of QHD screens 960*540, the signal source port number of these drivings IC is respectively 3240,2160,1620.In addition, this
The LCD panel that the applied array of sub-pixels of invention is 960*1080, it drives IC even can be using the driving of WVGA screens
IC, its signal source port number are 480*3=1440.
For another example, when the resolution level pel array of LCD panel that the present invention is applied is 1280*1440, the LCD panel institute
The signal source port number needed is N=1440, then it drives what IC can use either signal source channels number more than or equal to 1440
The driving IC of existing 3 primary colours LCD panel, such as the driving IC of driving IC, HD screen 1280*720 of FHD screens 1920*1080
Or the driving IC of QHD screens 960*540, the signal source port number of these drivings IC is respectively 3240,2160,1620.In addition, this
The LCD panel that the applied array of sub-pixels of invention is 1280*1440, it drives IC even can be using the driving of WVGA screens
IC, its signal source port number are just 480*3=1440.
And for example, when the array of sub-pixels for the LCD panel that the present invention is applied is 1920*2160, the LCD panel is required
Signal source port number is N=2160, then it drives IC to use existing 3 of either signal source channels number more than or equal to 2160
The driving IC of primary colours LCD panel, such as the driving IC of the driving IC or HD screens 1280*720 of FHD screens 1920*1080, this two
The signal source port number of a driving IC is respectively 3240 and 2160.
Wherein, the polarity distribution of sub-pixel dot matrix, the output polarity depending on signal source.Also, drive the signal source of IC
Exporting the control for sub-pixel positive-negative polarity needs the control of special polarity selecting circuit.In order to reduce the complexity of control circuit
Degree, polarity selection is not freely to define completely, but pre-establishes better output polarity scheme, real in terminal
Therefrom chosen during the use of border.Therefore, some polarity upset modes built in IC are driven, such as single-point upset, multiple spot upset, row turn over
Turn, sawtooth pattern（zig-zag）Upset etc., is that can only choose but not modifiable.
Here, for purposes of illustration only, herein more polarity selecting circuit with used driving IC be based on arranging overturn come into
Row citing.However, those skilled in the art will be understood that the citing is only used for illustrating the purpose of the present invention, without should be by
It is considered as any limitation of the invention, existing others polarity upset methods, as it is applicable to the present invention, such as point turns over
Turn, frame upset etc., then still fall within the present invention scope of patent protection within.
Fig. 6 shows to defer to RGWB according to the present invention
WBRG
The polarity distribution mode of the liquid crystal panel of 4 sub-pixels structures of color arrangement mode.Wherein, each all sons of row
The polarity all same of pixel, the periodic arrangement that polarity distribution between adjacent column is alternately present for "+-+- " and " -+-+".According to
This, in the row direction, polarity is classified as a unit according to every 4, is that normal columns are anti-inside unit, same color between adjacent cells
Sub-pixel opposite polarity, namely the correspondence position pixel polarity between adjacent cells is opposite.
Fig. 7 a show sub-pixel polarity of the liquid crystal panel of 4 sub-pixels structures shown in Fig. 6 when being displayed in full screen red
Distribution.Wherein, R sub-pixels are all turned on, other sub-pixel Close Alls.In every a line, the polarity of R sub-pixels is mutual all the time
Mend.Cooperation refers to Fig. 7 b, and from the 1st row to the 4th row, R sub-pixels are polarity complementation all the time, are not in single file sub-pixel pole
Property it is identical caused by deviation coupling.Similarly, in the case of other colors are displayed in full screen, in any a line, any one
Monochrome sub-pixels are polarity complementation all the time.
Fig. 8 a show sub-pixel polarity of the liquid crystal panel of 4 sub-pixels structures shown in Fig. 6 when being displayed in full screen cyan
Distribution.Wherein, G sub-pixel and B sub-pixels are all turned on, other sub-pixel Close Alls.In every a line, the pole of G sub-pixel
Property is complementary all the time, and the polarity of B sub-pixels is complementary all the time.Cooperation refers to Fig. 8 b, from the 1st row to the 4th row, G sub-pixel
It is polarity complementation all the time with B sub-pixels, is not in the identical caused deviation coupling of single file sub-pixel polarity.
In the present invention, driven as the driving IC using the LCD panel based on 3 primary color sub-pixels structures based on 2n primary colours
During the LCD panel of dot structure, in the row direction, the sub-pixel arranged using the integral multiple of 2n is a unit, such as with the son of 2n*k row
Pixel is a unit, the sub-pixel arranged for the same integral multiple of the 2n of arbitrary continuation in each two sequential cells, such as each two
The sub-pixel of the 2n*k row of arbitrary continuation in sequential cells, with 2 row for a subelement, by the driving IC and each subelement pair
The 2 signal source Channel Exchanges answered are linked in sequence（That is interconnection）The 2 row sub-pixels into corresponding subelement, also will be wherein
1st signal source channels are connected to the 2nd row sub-pixel in corresponding subelement, and wherein the 2nd signal source channels are connected to pair
The 1st row sub-pixel in subelement is answered, so that the polarity of the sub-pixel of same color is complementary in often going.
Fig. 9 shows the exemplary polarity selection connection diagram of one of driving method according to the present invention.Wherein, 4 color
The liquid crystal panel of sub-pixel structure defers to RGWB
WBRG
Color arrangement mode, and 4 groups of arrangements are only shown herein.The polarity of each column sub-pixel is identical.The liquid crystal panel
Array of sub-pixels is 1280*1440, which uses the driving IC of existing HD screens 1280*720, its signal source channels
Number is 2160.
In the row direction, using 4 row sub-pixels as a unit, in each two sequential cells it is continuous 4 row sub-pixel, such as
2-5 row sub-pixels, with 2 row for a subelement, by driving IC 2 signal source channels corresponding with the 1st subelement（I.e.
2 and the 3rd signal source channels）Change sequence and cross-connect to 2 row sub-pixels in the subelement, will the 2nd signal source channels
The 2nd row sub-pixel being connected in the 1st subelement（That is the 3rd row sub-pixel in the first sub-pixel unit）, by the 3rd
Signal source channels are connected to the 1st row sub-pixel in the 1st subelement（That is the 2nd sub- picture of row in the first sub-pixel unit
Element）, foregoing cross-connection step is repeated to 2 row sub-pixels of next subelement, will be the 4th and the 5th of driving IC
Signal source channels change sequence and cross-connect to the 2nd and the 1st row sub-pixel in the 2nd subelement（That is in the second sub-pixel unit
The 4th row sub-pixel in 1st row sub-pixel and first row sub-pixel unit）, and so on, repeat foregoing interconnection step
Suddenly, until the sub-pixel of all subelements in a unit is complete with the corresponding signal source channels interconnection of the driving IC
Finish；The step of foregoing division subelement and interconnection are repeated to next unit again, until all lists on line direction
Each sub-pixel column in member is connected to the corresponding signal source channels of driving IC so that often go in same color sub- picture
The polarity of element is complementary.
Here, since the signal source port number needed for the driving method is 1440, but the letter of the driving IC this time used
Number source channels number is 2160, for remaining 720（2160-1440）A signal source channels, its line are hung empty.Wherein, with LCD
The signal source channels of panel connection can be the continuous 1440 signal source channels of either segment of used driving IC.
In addition, for the LCD panel shown in Fig. 9, it drives IC equally can be using the drive of existing FHD screens 1920*1080
The driving IC of the driving IC or WVGA screens of dynamic IC, QHD screen 960*540.When using existing 3 primary colours FHD screens or QHD screens
Driving IC, by the continuous 1440 signal source channels of the either segment of driving IC according to above-mentioned Connection Step be linked in sequence to
After all sub-pixel columns of the LCD panel, the line of residual signal source channels is hung empty.When the driving using existing WVGA screens
IC, since its signal source port number is just 1440, is connecting its all signal source channel sequence according to above-mentioned Connection Step
To all sub-pixel columns of the LCD panel, then without residual signal source channels.
Refering to Figure 10, wherein still using 4 row sub-pixels as a unit, to the continuous 4 row sub-pixel in each two sequential cells,
Such as the sub-pixel of 1-4 row, the signal source channels with corresponding order, that is, use the 1-4 signal source channels of driving IC, press
Intersection line is carried out according to 2 row, one subelement, such as by the 1st row in the 1st subelement（That is the 1st row sub-pixel）With driving IC's
2nd signal source channels connection, by the 2nd row in the 1st subelement（That is the 2nd row sub-pixel）The 1st signal with driving IC
Source channels connect, by the 1st row in the 2nd subelement（That is the 3rd row sub-pixel）The 4th signal source channels with driving IC connect
Connect, by the 2nd row in the 2nd subelement（That is the 4th row sub-pixel）The 3rd signal source channels with driving IC are connected, thus institute
The sub-pixel polarity distribution of acquisition equally meets that the polarity of the sub-pixel of same color is complementary in the row direction.
In addition, for the LCD screen of 4 primary color sub-pixels, using 8 row sub-pixels as a unit, for each two sequential cells
In continuous 8 row sub-pixel and corresponding order signal source channels, with 2 row for a subelement, by sub- picture in each subelement
Element row carry out changing sequence with the signal source channels corresponding to the subelement intersects line, so as to cause same color in the row direction
The polarity of sub-pixel is complementary all the time.
Driving method according to the present invention, when driving IC to use any method for turning, in the row direction, same color
The polarity of sub-pixel is complementary all the time；When driving IC using row upset, in the row direction, the son of same color inside each unit
The polarity of pixel is also complementary.
When LCD panel is used to display image, signal source channels output image data, and according to each signal source channels
The order of the sub-pixel column connected exports corresponding view data.Accordingly, view data output order with it in LCD faces
The order of corresponding sub-pixel column is identical when being shown on plate, and picture signal can be output to the pixel column of its correspondence position, whole
Apparently image is still normally to show to body.For example, as the arrangement of subpixels such as RGWBRGWB ... of LCD panel
WBRGWBRG ...,
The the 3rd and 4 signal source channels and the 3rd and 4 row sub-pixel interconnections of IC are driven, drive the 5th and 6 of IC to believe
Number source channels and the 5th and 6 row sub-pixel interconnections, namely the 3rd signal source channels of driving IC and the 4th row sub-pixel company
Connect, drive the 4th signal source channels of IC to be connected with the 3rd row sub-pixel, drive the 5th signal source channels and the 6th row of IC
Pixel connects, and drives the 6th signal source channels of IC to be connected with the 5th row sub-pixel, so as to cause view data according to sub- picture
Element row put in order to be exported, i.e. the output order of view data is consistent with putting in order for sub-pixel column, for driving
The 3-6 signal source channels of dynamic IC, driving IC will believe according to the 4th signal source channels → 3rd signal source channels → 6th
The order of number source channels → 5th signal source channels carrys out output image data.
Driving method according to the present invention is, it is necessary to change the order of the view data of signal source channels output, this is for adopting
For realizing the non-usually systems that show of RGB such as RGBW with algorithm and extra cost need not be increased.For this kind of display system
For system, the rgb signal of traditional images natively needs to be processed into suitable for RGBW pixel systems by special conversion chip
Signal, in this transfer process, the order for changing the view data of signal source channels output is easily achieved.Thus
It can realize that RGBW is shown in the case where continuing to use traditional LC D driving chips, and be distributed with the pixel polarity of the present invention to eliminate
The display that RGBW distribution of color may be brought is bad.
Figure 11 shows the part connection diagram of a kind of driving IC according to the present invention and LCD panel, driving IC applications
In the LCD panel of the sub-pixel structure based on 4 primary colours.The LCD panel array of sub-pixels is 1280*1440.
The signal source port number of driving IC is N=1440；As shown in figure 11, in the row direction, each letter of driving IC
Number source channels are linked in sequence to the sub-pixel of respective column, and all sub-pixel polarity of same column are identical, and single using 4 row sub-pixels as one
Member so that the opposite polarity of the sub-pixel of same color in two neighboring unit, and often go in same color sub-pixel pole
Property it is complementary.
Also, since the polarity selecting circuit of driving IC is overturn using row, driving IC causes in each unit
Portion is that normal columns are anti-, the sub-pixel opposite polarity of the correspondence position between adjacent cells.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference numeral in claim should not be considered as to the involved claim of limitation.This
Outside, it is clear that one word of " comprising " is not excluded for other units or step, and odd number is not excluded for plural number.That is stated in system claims is multiple
Unit or device can also be realized by a unit or device by software or hardware.The first, the second grade word is used for table
Show title, and be not offered as any specific order.
Claims (11)
1. a kind of driving method for LCD panel, wherein, the array of sub-pixels of the LCD panel is M*N and the LCD faces
Sub-pixel structure of the plate based on 2n primary colours, n are the integer more than or equal to 2；Wherein, each sub-pixel sub-pixel adjacent thereto
Differ；
Wherein, which utilizes the driving IC of the LCD panel based on 3 primary color sub-pixels structures；
Wherein, which includes：
- in the row direction, the sub-pixel arranged using the integral multiple of 2n is a unit, for continuous 2n in each two sequential cells
The sub-pixel of same integral multiple row, with 2 row for a subelement, by the driving IC 2 signal sources corresponding with each subelement
Passage cross-connects to 2 row sub-pixels in corresponding subelement, so that the polarity of the sub-pixel of same color is complementary in often going；
Wherein, the sub-pixel of the same integral multiple row of the continuous 2n crosses over two affiliated sequential cells；
- when the LCD panel is used to display image, the output order and the signal source channels of the driving IC of view data
The order for being connected to the sub-pixel column of the LCD panel is identical.
2. driving method according to claim 1, wherein, which further includes：
- when the signal source port number of the driving IC is more than N, the line of remaining signal source channels is hung empty.
3. driving method according to claim 1, wherein, the polarity selecting circuit of the driving IC includes turning over based on row
Turn, put the polarity selecting circuit of any one of upset or zigzag upset.
4. driving method according to any one of claim 1 to 3, wherein, the LCD panel is based on 4 primary color sub-pixels
Structure.
5. driving method according to claim 4, wherein, 4 primary color sub-pixels include red sub-pixel, the sub- picture of green
Element, blue subpixels and a kind of sub-pixel of other colors.
6. driving method according to claim 5, wherein, the sub-pixel of other colors is white sub-pixels.
7. a kind of driving IC for LCD panel, wherein, the array of sub-pixels of the LCD panel is M*N and the LCD panel
Based on the sub-pixel structure of 2n primary colours, n is the integer more than or equal to 2；Wherein, each sub-pixel sub-pixel adjacent thereto is not
It is identical；
Wherein, driving IC is configured as：
- signal source port number is N；
- in the row direction, N number of signal source channel sequence of driving IC is connected to the sub-pixel of respective column, and son is arranged with 2n
Pixel is a unit so that the opposite polarity of the sub-pixel of same color in two neighboring unit.
8. driving IC according to claim 7, wherein, the polarity selecting circuit of driving IC is included based on row upset, point
Upset or zigzag upset any one of polarity selecting circuit.
9. the driving IC according to claim 7 or 8, wherein, wherein, the LCD panel is based on 4 primary color sub-pixels structures.
10. driving IC according to claim 9, wherein, 4 primary color sub-pixels include red sub-pixel, the sub- picture of green
Element, blue subpixels and a kind of sub-pixel of other colors.
11. driving IC according to claim 10, wherein, the sub-pixel of other colors is white sub-pixels.
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| CN104882106B (en) * | 2015-06-02 | 2017-05-31 | 武汉华星光电技术有限公司 | The liquid crystal display panel and its driving method of row inverted pattern |
| CN104898317B (en) * | 2015-06-15 | 2019-04-30 | 深圳市华星光电技术有限公司 | Dot structure and liquid crystal display panel |
| CN106991953A (en) * | 2017-05-11 | 2017-07-28 | 惠科股份有限公司 | Pixel driving circuit, driving method and display device |
| CN107833564B (en) * | 2017-12-18 | 2020-05-12 | 惠科股份有限公司 | Display panel driving method, driving device and display device |
| CN113296318A (en) * | 2021-04-16 | 2021-08-24 | 贵州芯源微科技有限公司 | Novel display framework and liquid crystal display panel |
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| WO2007129425A1 (en) * | 2006-05-08 | 2007-11-15 | Sharp Kabushiki Kaisha | Liquid crystal display device |
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| EP2498126A1 (en) * | 2009-11-06 | 2012-09-12 | Sharp Kabushiki Kaisha | Liquid crystal display device |
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| CN100583218C (en) * | 2003-06-06 | 2010-01-20 | 三星电子株式会社 | Image degradation correction in novel liquid crystal displays with split blue subpixels |
| WO2007129425A1 (en) * | 2006-05-08 | 2007-11-15 | Sharp Kabushiki Kaisha | Liquid crystal display device |
| CN101833906A (en) * | 2009-03-11 | 2010-09-15 | 乐金显示有限公司 | Liquid crystal display and driving method thereof |
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Address after: 518063 rooms a1603, 1604 and 1605, Shenzhen national engineering laboratory building, No.20, Gaoxin South 7th Road, high tech Zone community, Yuehai street, Nanshan District, Shenzhen City, Guangdong Province Patentee after: Yunyinggu Technology Co.,Ltd. Address before: 518057 Room 309, SED 2, 11 Nanshan District science and technology road, Shenzhen, Guangdong. Patentee before: SHENZHEN YUNYINGGU TECHNOLOGY Co.,Ltd. |
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Denomination of invention: A Driver Method and Driver IC for LCD Panel Granted publication date: 20180511 Pledgee: Shenzhen Branch of China Merchants Bank Co.,Ltd. Pledgor: Yunyinggu Technology Co.,Ltd. Registration number: Y2024980020252 |