CN104376817B - 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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- CN104376817B CN104376817B CN201310350309.9A CN201310350309A CN104376817B CN 104376817 B CN104376817 B CN 104376817B CN 201310350309 A CN201310350309 A CN 201310350309A CN 104376817 B CN104376817 B CN 104376817B
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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；In the row direction, multiple row sub-pixel is divided into multiple units, the driving IC signal source channel sequences for corresponding to the columns of sub-pixel in each unit are connected to each column sub-pixel in corresponding units and the line of next signal source channels is hung into sky, so that the polarity of the sub-pixel of same color is complementary in often going.
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 display panel（LCD）Possess the specification of three sub-pixels division, three sub-pixels point using a pixel
It is not displayed in red（R）, green（G）And blue（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, a kind of 4 sub-pixels specifications newly occur can also additionally show other than three primary colors
White（W）Or other colors.If sub-pixel is coated with transparent color blocking, can be displayed in white, and backlight illumination does not damage
It loses, improves module overall brightness and penetrance.Therefore in general, in order to obtain higher brightness, 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 such methods, a pixel is no longer strictly divided into 4（Or 3 or other are multiple）Sub- picture
Element, but reduce divide number to a certain extent is such as constituted a pixel with 2 sub-pixels, and by by image procossing
Algorithm is combined with panel construction, to ensure that LCD panel in the case where non-traditional RGB is constructed, remains to receive traditional RGB image
Signal, and show the image identical or close with original image.
The pixel-matrix of liquid crystal display panel is when being applied in voltage, in order to protect liquid crystal molecule, can only be applied in alternating voltage,
This generates the concepts of pixel polarity.Polarity distribution generally a little overturns, row overturning, arranges the modes such as overturning, frame overturning, 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 IC polarity output for+-
+ -+- ..., this makes the polarity always complementation of each monochrome sub-pixels on line direction.
However, for the LCD panel of 4 sub-pixels structures, polarity distribution is then complicated more.
For example, in a kind of liquid crystal display panel of tetra- sub-pixels structures of RGBW, distribution of color defers to RGWB
WBRG
Periodic cycle.Wherein, R sub-pixels form a pixel with G sub-pixel, and W sub-pixel forms one with B sub-pixels
A pixel.Due to its unique color arrangement mode, the pixel polarities arrangement model such as common point overturning, row overturning is in this face
The various display problems for being not on conventional RGB screens are easily caused on plate.
Fig. 1 shows the liquid crystal display panel of the 4 sub-pixels structures such as aforementioned color arrangement mode, the polarity selection of driving IC
Circuit is based on point and overturns.Here, being concise explanation, 4 groups of RGWB are only shown
WBRG
Periodic cycle.
Cooperation is referring to Fig.2, Fig. 2 a show the one kind of the liquid crystal display panel of 4 sub-pixels structure shown in FIG. 1 in overturning
There may be show undesirable image conditions.When being displayed in full screen red, there are voltage couplings between each circuit node on panel
The case where.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 lines such as the 1st row and the 3rd row is positive polarity in present frame and all beats
It opens, but there is no the corresponding sub-pixels for the negative polarity opened simultaneously.The variation in voltage of full line sub-pixel in this way is whole towards positive polarity
Direction deviates.Respectively there are coupled capacitors between public electrode for each pixel electrode of 1st row and the 3rd row, therefore
Lead to the voltage V on public electrodecomIt is coupled towards the positive direction and deviates 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
Deviation has occurred in voltage between public electrode, leads to the undertension of the sub-pixel of standard-sized sheet on the 1st row and the 3rd row, and
Then there is small voltage on the sub-pixel of contract fully.There have been deviations for the display color of such 1st row and the 3rd row.
The case where even number lines such as the 2nd row and the 4th row is also similar, only becomes common 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.
It integrates, under pixel polarity distribution situation shown in Fig. 1 and Fig. 2 a, common voltage VcomThere is strange row and idol
Row respectively couples the case where changing to negative direction, and full frame color is caused 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 pixel shown in Fig. 1 and Fig. 2 a
Polarity distribution can damage the service condition of the terminal of the liquid crystal display panel using this arrangement.
It is aobvious that Fig. 3 a show that alternatively possible in overturning of the liquid crystal display panel of 4 sub-pixels structure 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 the case where.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 lines such as the 1st row and the 3rd row is negative polarity in present frame and all beats
It opens, but there is no the corresponding sub-pixels for the positive polarity opened simultaneously.The variation in voltage of entire row of pixels in this way is whole towards negative polarity side
To offset.Respectively there are coupled capacitors between public electrode for each pixel electrode of 1st row and the 3rd row, therefore cause
Voltage V on public electrodecomIt is coupled towards negative sense and deviates from common potential.
The case where even number lines such as the 2nd row and the 4th row is also similar, only becomes common 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 example shown in Fig. 3 a and b is same type with example shown in Fig. 2 a and b, but show shown in Fig. 3 a and b
The degree of example is more serious, to which it can equally damage the service condition of the terminal of the liquid crystal display panel using this arrangement.
Fig. 4 shows to defer to RGWB
WBRG
The liquid crystal display panel of 4 sub-pixels structures of color arrangement mode, the polarity selecting circuit of driving IC are based on row and turn over
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 display panel of 4 sub-pixels structure shown in Fig. 4 when arranging overturning, and there may be show not
Good image conditions.When red for full screen display, color and polar correspondence 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 is polarity characteristic consistent always, comes without any homochromy but reversed 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 will appear deviation, that is, the integral color of positive frame and negative frame is different,
To cause to flicker（flicker）.
Invention content
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 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, multiple row sub-pixel is divided into multiple units, the driving IC is corresponded into son in each unit
The signal source channel sequence of the columns of pixel is connected to each column sub-pixel in corresponding units and by next signal source channels
Line hangs sky, so that the polarity of the sub-pixel of same color is complementary in often going.
According to another aspect of the present invention, a kind of driving IC for LCD panel is additionally provided, wherein the faces LCD
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 so that every
The polarity of row sub-pixel is identical, and the polarity of the sub-pixel of same color is complementary in often going.
Compared with prior art, the invention enables can utilize existing any faces LCD 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+N/ (2n*k), wherein k is the integer more than or equal to 1.Also, the invention enables in line direction
On, the polarity of the sub-pixel of each color is complementary, inclined to avoid the display of color to which the offset of common voltage will not occur
Difference, and avoid the flicker between frame and frame.Simultaneously as the polarity of adjacent column is on the contrary, this also effectively prevents cross-talk
（cross-talk）.
In addition, the present invention also provides a kind of special driving IC to be applied to the sub-pixel structure based on 2n primary colours
The array of sub-pixels of LCD panel, 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 makes the son of same color in often going
The polarity of pixel is complementary.
Description of the drawings
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, of the invention other
Feature, objects and advantages will become more apparent upon：
Fig. 1 shows in the prior art a kind of based on the partially schematic of the liquid crystal display panel of 4 sub-pixels structures of overturning
Figure；
Fig. 2 a show a kind of in overturning of the liquid crystal display panel of 4 sub-pixels structure shown in FIG. 1, and there may be displays
The schematic diagram of undesirable image conditions；
Fig. 2 b show shown in Fig. 2 a under the undesirable image conditions of display the often common voltage V of row sub-pixelcomSchematic diagram；
It is aobvious that Fig. 3 a show that alternatively possible in overturning of the liquid crystal display panel of 4 sub-pixels structure shown in FIG. 1 exists
Show the schematic diagram of undesirable image conditions；
Fig. 3 b show shown in Fig. 3 a under the undesirable image conditions of display the often common voltage V of row sub-pixelcomSchematic diagram；
Fig. 4 shows that the part of the liquid crystal display panel of another 4 sub-pixels structures based on row overturning in the prior art shows
It is intended to；
Fig. 5 shows the one kind of the liquid crystal display panel of 4 sub-pixels structure shown in Fig. 4 when arranging overturning, and there may be show not
The schematic diagram of good image conditions；
Fig. 6 shows the schematic diagram of the polarity distribution mode of the liquid crystal display panel of 4 sub-pixels structure according to the present invention；
Fig. 7 a show sub-pixel polarity of the liquid crystal display panel of 4 sub-pixels structure shown in fig. 6 when being displayed in full screen red
The schematic diagram of distribution；
Fig. 7 b show the common voltage V of every row sub-pixel in the case of being shown shown in Fig. 7 acomSchematic diagram；
Fig. 8 a show sub-pixel polarity of the liquid crystal display panel of 4 sub-pixels structure shown in fig. 6 when being displayed in full screen cyan
The schematic diagram of distribution；
Fig. 8 b show the common voltage V of every row sub-pixel in the case of being shown shown in Fig. 8 acomSchematic diagram；
Fig. 9 shows a kind of polarity selection connection diagram of driving method according to the present invention；
Figure 10 shows the polarity selection connection diagram of another driving method according to the present invention；
Figure 11 shows the polarity selection connection diagram of another driving method according to the present invention；
Figure 12 shows the polarity selection connection diagram of also a kind of driving method according to the present invention；
Figure 13 shows the part connection diagram of a kind of driving IC and LCD panel according to the present invention.
Same or analogous reference numeral represents same or analogous component in attached drawing.
Specific implementation mode
Present invention is further described in detail below in conjunction with the accompanying drawings.
The present invention is directed to 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, array of sub-pixels M*N.Wherein each pixel is by the even number sub-pixel less than or equal to 2n
It constitutes.For example, for the LCD panel of 4 primary colours, wherein each pixel can be made of 2 sub-pixels or 4 sub- pixels；For 6 bases
The LCD panel of color, wherein each pixel can be made of 2 sub-pixels, 4 sub-pixels or 6 sub- pixels；And so on.
For purposes of illustration only, mostly being illustrated herein with the LCD panel based on 4 primary color sub-pixels structures, however, this field
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 the patent of the present invention
Within protection domain.
Further, for the LCD panel based on 4 primary color sub-pixels structures, 4 primary colours therein can be arbitrary 4 kinds of face
Color, especially and without loss of generality, 4 primary colours are red, green, blue and a kind of any other color.Particularly, this other
A kind of color of anticipating is white.
Similarly, for purposes of illustration only, mostly illustrating this using red, green, blue and white as 4 primary colours 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 for illustrating the present invention is released, and is not construed as any limitation of the invention, other arbitrary 4 kinds of colors, as it is available
Form the LCD panel based on 4 primary color sub-pixels structures, then within the scope of patent protection for still falling within the present invention.
Further, for purposes of illustration only, being herein RGWB with the arrangement mode of red, green, blue and white
WBRG
To illustrate.Also, wherein R sub-pixels form a pixel with G sub-pixel, and W sub-pixel is formed with B sub-pixels
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 composed 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 faces LCD 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）For N+N/（The integer of 2n
Times）, the integral multiple of the 2n indicates with 2n*k herein, and wherein k is the integer more than or equal to 1, such as 1,2....
The polarity selecting circuit of the driving IC of the existing LCD panel based on 3 primary color sub-pixels structures can be existing
Either polarity selection circuit in addition to the polarity selecting circuit based on row overturning, the polarity such as based on row overturning select electricity
Road, the polarity selecting circuit based on the polarity selecting circuit of overturning or based on frame overturning.Wherein, the polarity choosing based on overturning
The polarity selecting circuit overturn based on single-point and the polarity selecting circuit overturn based on multiple spot can be further comprised by selecting circuit also.
The LCD panel of existing 3 primary colours structure, it is consistent that the columns of sub-pixel drives the signal source port number of IC with it
And it is 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）Driving IC signal source port number be 1080*3=3240；
HD screens 1280*720（Resolution ratio）Driving IC signal source port number be 720*3=2160；
QHD screens 960*540（Resolution ratio）Driving IC signal source port number be 540*3=1620；
The signal source port number of the driving IC of WVGA screens is 480*3=1440.
In the present invention, when using sub based on 2n primary colours to drive based on the driving IC of the LCD panel of 3 primary color sub-pixels structures
When the LCD panel of dot structure, in the row direction, multiple row sub-pixel is divided into multiple units, the driving IC is corresponded to
The signal source channel sequence of the columns of sub-pixel is connected to each column sub-pixel in corresponding units and will be next in each unit
The line of signal source channels hangs sky, so that the polarity of the sub-pixel of same color is complementary in often going.Wherein, in each unit
The columns of sub-pixel is corresponding with 2n, can be 2n*k.
For example, when the array of sub-pixels for the LCD panel that the present invention is applied is 960*1080, such as with 4 row sub-pixels for one
A unit is come to driving the signal source channels of IC to carry out hanging empty line, the required signal source port number of the LCD panel is N+N/
(2n*k)=1080+1080/ (4*1)=1350, then its drive IC may be used either signal source channels number be greater than or equal to 1350
Existing 3 primary colours LCD panel driving IC, such as driving IC, HD screen 1280*720 of FHD screens 1920*1080 driving
The signal source port number of the driving IC of IC or QHD screens 960*540, these drivings IC are respectively 3240,2160,1620.In addition,
The array of sub-pixels that the present invention is applied is the LCD panel of 960*1080, and the drive of WVGA screens even may be used in driving IC
Dynamic IC, signal source port number are 480*3=1440.
For another example, the array of sub-pixels for the LCD panel applied as the present invention is 1280*1440, such as with 8 row sub-pixels for one
A unit is come to driving the signal source channels of IC to carry out hanging empty line, the required signal source port number of the LCD panel is N+N/
(2n*k)=1440+1440/ (4*2)=10, then its drive IC that either signal source channels number may be used more than or equal to 1620
The driving IC of existing 3 primary colours LCD panel, for example, driving IC, HD screen 1280*720 of FHD screens 1920*1080 driving IC
Or the driving IC of QHD screens 960*540, the signal source port number of these drivings IC is respectively 3240,2160,1620.
For another example, the array of sub-pixels for the LCD panel applied as the present invention is 1920*2160, such as with 4 row sub-pixels for one
A unit is come to driving the signal source channels of IC to carry out hanging empty line, the required signal source port number of the LCD panel is N+N/
(2n*k)=2160+2160/ (4*1)==2700, then its drive IC may be used either signal source channels number be greater than or equal to 2700
Existing 3 primary colours LCD panel driving IC, such as FHD screens 1920*1080 driving IC, the signal source channels of driving IC
Number is 1080*3=3240.
Wherein, the polarity distribution of sub-pixel dot matrix depends on the output polarity of signal source.Also, drive the signal source of IC
Export the control that special polarity selecting circuit is needed for the control of sub-pixel positive-negative polarity.In order to reduce the complexity of control circuit
Degree, polarity selection is not that can freely define completely, but pre-establish better output polarity scheme, real in terminal
It is therefrom chosen when the use of border.Therefore, some polarity upset modes built in IC, such as single-point overturning, multiple spot overturning, row is driven to turn over
Turn, sawtooth pattern（zig-zag）Overturning etc. is that can only choose but not modifiable.
Here, for purposes of illustration only, herein mostly with it is used driving IC polarity selecting circuit be based on row 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 method, if it is applicable to the present invention, such as point turns over
Turn, frame overturning etc., then still fall within the present invention scope of patent protection within.
Fig. 6 shows according to the present invention to defer to RGWB
WBRG
The polarity distribution mode of the liquid crystal display 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 the polarity distribution between adjacent column is "+-+- " to be alternately present with " -+-+".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 polarity on the contrary, namely corresponding position pixel polarity between adjacent cells it is opposite.
Fig. 7 a show sub-pixel polarity of the liquid crystal display panel of 4 sub-pixels structure 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 always
It mends.Cooperation is refering to Fig. 7 b, and from the 1st row to the 4th row, R sub-pixels are polarity complementation always, are not in uniline sub-pixel pole
Property it is identical caused by be biased to coupling.Similarly, for being displayed in full screen other colors the case where, in arbitrary a line, any one
Monochrome sub-pixels are polarity complementation always.
Fig. 8 a show sub-pixel polarity of the liquid crystal display panel of 4 sub-pixels structure 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 always, and the polarity of B sub-pixels is complementary always.Cooperation is refering to Fig. 8 b, from the 1st row to the 4th row, G sub-pixel
It is polarity complementation always with B sub-pixels, is not in be biased to coupling caused by uniline sub-pixel polarity is identical.
Fig. 9 shows a kind of polarity selection connection diagram of driving method according to the present invention.Wherein, 4 sub-pixels knot
The liquid crystal display panel of 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 display panel
Array of sub-pixels is 1280*1440, which uses the driving IC of existing 3 primary colours HD screens 1280*720, signal
Source channels number is 2160.
In the row direction, with 4 row sub-pixels for a unit, the 1-4 signal source channel sequence of driving IC is connected
To each column sub-pixel in Unit the 1st and by next signal source channels（That is the 5th signal source channels）Line hang it is empty；To under
The sub-pixel column of Unit one repeats aforementioned Connection Step, i.e., connects the 6-9 signal source channel sequence of driving IC
Each column sub-pixel into Unit the 2nd（That is 5-8 row sub-pixel）And the line of the 10th signal source channels is hung empty；With such
It pushes away, repeats aforementioned Connection Step, until each sub-pixel column in all units on line direction is connected to the driving
The corresponding signal source channels of IC, so that the polarity of the sub-pixel of same color is complementary in often going.Also, with 4 row sub-pixels
When carrying out hanging empty line to signal source channels for a unit, the polarity of the sub-pixel of same color is opposite in two neighboring unit.
Here, since the signal source port number needed for the driving method is 1440+1440/4=1800, however this time use
Driving IC signal source port number be 2160, for remaining 360（2160-1800）A signal source channels, its line is hung
It is empty.Wherein, the signal source channels being connect with LCD panel can be continuous 1800 signals of either segment of used driving IC
Source channels.
In addition, for LCD panel shown in Fig. 9, existing 3 primary colours FHD screens 1920*1080 equally can be used in driving IC
Driving IC.As the driving IC using existing 3 primary colours FHD screens, by continuous 1800 signals of the either segment of driving IC
Source channels are linked in sequence according to above-mentioned Connection Step to all sub-pixel columns of the LCD panel, by residual signal source channels
Line is hung empty.
Figure 10 shows the polarity selection connection diagram of another driving method according to the present invention.Wherein, 4 sub-pixels
The liquid crystal display panel of structure defers to RGWB
WBRG
Color arrangement mode, and 8 groups of arrangements are only shown herein.The polarity of each column sub-pixel is identical.The liquid crystal display panel
Array of sub-pixels is 1280*1440, which uses the driving IC of existing 3 primary colours HD screens 1280*720, signal
Source channels number is 2160.
In the row direction, with 8 row sub-pixels for a unit, the 1-8 signal source channel sequence of driving IC is connected
To each column sub-pixel in Unit the 1st and by next signal source channels（That is the 9th signal source channels）Line hang it is empty；To under
The sub-pixel column of Unit one repeats aforementioned Connection Step, i.e., connects the 10-17 signal source channel sequence of driving IC
The each column sub-pixel being connected in Unit the 2nd（That is 9-16 row sub-pixel）And the line of the 18th signal source channels is hung empty；With
This analogizes, and repeats aforementioned Connection Step, until each sub-pixel column in all units on line direction is connected to this
The corresponding signal source channels of IC are driven, so that the polarity of the sub-pixel of same color is complementary in often going.
Here, since the signal source port number needed for the driving method is 1440+1440/8=1620, however this time use
Driving IC signal source port number be 2160, for remaining 540（2160-1620）A signal source channels, its line is hung
It is empty.Wherein, the signal source channels being connect with LCD panel can be continuous 1620 signals of either segment of used driving IC
Source channels.
In addition, for LCD panel shown in Fig. 10, the FHD screens 1920* of existing 3 primary colours equally can be used in driving IC
The driving IC of the driving IC or QHD screens 960*540 of 1080 driving IC, HD screen 1280*720.When using existing FHD screens
When the driving IC of the driving IC or HD screens 1280*720 of 1920*1080, by the either segment of respective drive IC continuous 1620
A signal source channels are linked in sequence according to above-mentioned Connection Step to all sub-pixel columns of the LCD panel, by residual signal source
The line in channel is hung empty.When using existing QHD screens driving IC, due to its signal source port number just be 1620, according to
After its all signal source channel sequence is connected to all sub-pixel columns of the LCD panel by above-mentioned Connection Step, then believe without residue
Number source channels.
Figure 11 shows the polarity selection connection diagram of another driving method according to the present invention.Wherein, 4 sub-pixels
The liquid crystal display panel of structure defers to RGWB
WBRG
Color arrangement mode, and 8 groups of arrangements are only shown herein.The polarity of each column sub-pixel is identical.The liquid crystal display panel
Array of sub-pixels is 1280*1440, which uses the driving IC of existing 3 primary colours HD screens 1280*720, signal
Source channels number is 2160.
In the row direction, after the sub-pixel that preceding 2 arrange being connect with the 1st and the 2nd signal source channel sequence of driving IC,
By next signal source channels（That is the 3rd signal source channels）Line hang it is empty；Then, with 4 row sub-pixels for a unit, by this
The 4-7 signal source channel sequence of driving IC is connected to each column sub-pixel in Unit the 1st and by next signal source channels
（That is the 8th signal source channels）Line hang it is empty；Aforementioned Connection Step is repeated to the sub-pixel column of next unit, i.e., should
The 9-12 signal source channel sequence of driving IC is connected to each column sub-pixel in Unit the 2nd（That is 7-10 row sub-pixel）And
The line of 13rd signal source channels is hung empty；And so on, aforementioned Connection Step is repeated, until the last one unit
Each sub-pixel column is connected to the corresponding signal source channels of driving IC and by the company of the next signal source channels of driving IC
After line hangs sky, the sub-pixels of last 2 row on the line direction 2 signal source channel sequences subsequent with driving IC are connect, so that
The polarity for obtaining the sub-pixel of same color in often going is complementary.Also, often the polarity of row sub-pixel is symmetrical, this makes LCD
The design of screen is more easy.
Here, since the signal source port number needed for the driving method is 1440+1440/4=1800, however this time use
Driving IC signal source port number be 2160, for remaining 360（2160-1800）A signal source channels, its line is hung
It is empty.Wherein, the signal source channels being connect with LCD panel can be continuous 1800 signals of either segment of used driving IC
Source channels.
In addition, for LCD panel shown in Figure 11, existing 3 primary colours FHD screens 1920* equally can be used in driving IC
1080 driving IC.As the driving IC using existing FHD screens, by continuous 1800 signal sources of the either segment of driving IC
Channel is linked in sequence according to above-mentioned Connection Step to all sub-pixel columns of the LCD panel, by the company of residual signal source channels
Line is hung empty.
Figure 12 shows the polarity selection connection diagram of also a kind of driving method according to the present invention.Wherein, 4 sub-pixels
The liquid crystal display panel of structure defers to RGWB
WBRG
Color arrangement mode, and 8 groups of arrangements are only shown herein.The polarity of each column sub-pixel is identical.The liquid crystal display panel
Array of sub-pixels is 1280*1440, which uses the driving IC of existing 3 primary colours HD screens 1280*720, signal
Source channels number is 2160.
It in the row direction, will after the sub-pixel that preceding 4 arrange being connect with the 1-4 signal source channel sequence of driving IC
Next signal source channels（That is the 5th signal source channels）Line hang it is empty；Then, with 8 row sub-pixels for a unit, by the drive
The 6-13 signal source channel sequence of dynamic IC is connected to each column sub-pixel in Unit the 1st（That is 5-12 is arranged）And it will be next
Signal source channels（That is the 14th signal source channels）Line hang it is empty；Aforementioned connection is repeated to the sub-pixel column of next unit
The 15-22 signal source channel sequence of driving IC is connected to each column sub-pixel in Unit the 2nd by step（That is 13-
20 row sub-pixels）And the line of the 23rd signal source channels is hung empty；And so on, aforementioned Connection Step is repeated, until
Each sub-pixel column of the last one unit is connected to the corresponding signal source channels of driving IC and by the next of driving IC
After the line of signal source channels hangs sky, by subsequent 4 signal source channels of the sub-pixels and driving IC of last 4 row on line direction
It is linked in sequence, so that the polarity of the sub-pixel of same color is complementary in often going.Wherein, when the columns of each unit sub-pixel
More, the extension ceases to be busy of the signal source channels of the driving IC needed for the LCD screen is fewer, to the type of available existing driving IC
It is more.
Here, since the signal source port number needed for the driving method is 1440+1440/8=1620, however this time use
Driving IC signal source port number be 2160, for remaining 540（2160-1620）A signal source channels, its line is hung
It is empty.Wherein, the signal source channels being connect with LCD panel can be continuous 1620 signals of either segment of used driving IC
Source channels.
In addition, for LCD panel shown in Figure 12, the FHD screens 1920* of existing 3 primary colours equally can be used in driving IC
The driving IC of the driving IC or QHD screens 960*540 of 1080 driving IC, HD screen 1280*720.When using existing FHD screens
When the driving IC of the driving IC or HD screens 1280*720 of 1920*1080, by the either segment of respective drive IC continuous 1620
A signal source channels are linked in sequence according to above-mentioned Connection Step to all sub-pixel columns of the LCD panel, by residual signal source
The line in channel is hung empty.When using existing QHD screens driving IC, due to its signal source port number just be 1620, according to
After its all signal source channel sequence is connected to all sub-pixel columns of the LCD panel by above-mentioned Connection Step, then believe without residue
Number source channels.
Since existing LCD drivings IC will can't hang empty data output interface ineffective treatment automatically, in essence, these
Interface still in work, i.e., still has output signal, and only these output signals will not be revealed.Therefore, work as LCD panel
When being used to display image, signal source channels export image data, and need to be inserted into the corresponding row of the empty output interface of these extensions superfluous
Remainder evidence is inserted into redundant data at the image data of the signal source channels of driving IC hung corresponding to empty position.Accordingly,
It is identical that the output sequence of image data with driving IC is connected to the sequence of signal source channels of sub-pixel of the LCD panel, normally
Picture signal can be output to normal pixel row, and redundant data can be output to the empty data output interface of extension, first and last image
It is still normally to show.
Driving method according to the present invention needs to carry out image data the operation for being inserted into redundant data, this is for using
Algorithm does not need to increase additional cost for realizing the system that the non-usual RGB such as RGBW are shown.For this kind of display system
For, 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, insertion redundant data in place is easily achieved.Thus tradition can continued to use
It realizes that RGBW is shown in the case of LCD driving chips, and is distributed with the pixel polarity of the present invention to eliminate RGBW distribution of color institute
The display that may be brought is bad.
Figure 13 shows the part connection diagram of a kind of driving IC and LCD panel according to the present invention, driving IC applications
In the LCD panel of the sub-pixel structure based on 4 primary colours.The array of sub-pixels of the LCD panel is 1280*1440.
The signal source port number of driving IC is N=1440；As shown in figure 13, 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 are one single with 4 row sub-pixels
Member so that in two neighboring unit the sub-pixel of same color polarity on the contrary, 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 makes in each unit
Portion is that normal columns are anti-, and the sub-pixel polarity of the corresponding position between adjacent cells is opposite.
Similarly, such as with 8 row sub-pixels for a unit, in the row direction, each signal source channel sequence of driving IC
Be connected to the sub-pixel of respective column, all sub-pixel polarity of same column are identical, and often go in same color sub-pixel polarity
It is complementary.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, 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 above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation includes within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.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 equal words are used for table
Show title, and does not represent any particular order.
Claims (8)
1. a kind of driving method for LCD panel, wherein the array of sub-pixels of the LCD panel is M*N and the faces LCD
Sub-pixel structure of the plate based on 2n primary colours, n are 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, the signal of the driving IC
Source channels number is at least N+N/ (2n*k), wherein k is the integer more than or equal to 1；
Wherein, which includes：
In the row direction, with the sub-pixel of 2n*k row for a unit, the signal source of the respective numbers of the driving IC is led to by a
Road, which is linked in sequence, each column sub-pixel into first unit and to be hung the line of next signal source channels empty；
B repeats the step a to next unit, until each column sub-pixel in all units is connected to the driving IC
Corresponding signal source channels so that the polarity of the sub-pixel of same color is complementary in often going.
2. driving method according to claim 1, wherein the step a further comprises：
In the row direction, the sub-pixel forward n*k arranged and the signal source channel sequence of the respective numbers of the driving IC connect
After connecing, the line of next signal source channels is hung empty；
With the sub-pixel of 2n*k row for a unit, the signal source channel sequence of the respective numbers of the driving IC is connected
It is hung to each column sub-pixel in first unit and by the line of next signal source channels empty；
Wherein, the step b further comprises：
Above-mentioned steps a is repeated to next unit, until each column sub-pixel in the last one unit is connected to the driving
After the line of the next signal source channels of the signal source channels of IC and the driving IC hangs sky, by n*k last on line direction
The signal source channel sequence of the sub-pixel of the row respective numbers subsequent with the driving IC is connect, so that same color in often going
Sub-pixel polarity it is complementary.
3. driving method according to claim 1, wherein the driving method further includes：
When the LCD panel is used to display image, the output sequence of image data and described in the driving IC is connected to
The sequence of the signal source channels of the sub-pixel of LCD panel is identical, and the extension empty position institute of the signal source channels in the driving IC
Redundant data is inserted at corresponding image data.
4. driving method according to claim 1, wherein the driving method further includes：
When the signal source port number of the driving IC is more than N+N/ (2n*k), wherein k is the integer more than or equal to 1, will
The line of remaining signal source channels is hung empty.
5. driving method according to claim 1, wherein the polarity selecting circuit of the driving IC includes being turned over based on row
Turn, put the polarity selecting circuit of any one of overturning or zigzag overturning.
6. driving method according to claim 1, wherein the LCD panel is based on 4 primary color sub-pixels structures.
7. driving method according to claim 6, 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.
8. driving method according to claim 7, wherein the sub-pixel of other colors is white sub-pixels.
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| CN104752488B (en) * | 2015-03-13 | 2017-12-22 | 上海和辉光电有限公司 | OLED pixel arrangement architecture |
| CN104820325B (en) * | 2015-04-13 | 2018-01-09 | 深超光电（深圳）有限公司 | Thin Film Transistor-LCD and array base palte |
| 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 |
| CN105425451B (en) | 2015-11-23 | 2018-08-14 | 上海中航光电子有限公司 | A kind of color membrane substrates, display panel and display device |
| CN105469711B (en) * | 2015-12-08 | 2019-02-05 | 上海中航光电子有限公司 | A kind of array substrate and the display panel including the array substrate, display device |
| CN106023872A (en) * | 2016-07-13 | 2016-10-12 | 深圳市华星光电技术有限公司 | Display device and drive method thereof |
| CN108181770A (en) * | 2018-02-11 | 2018-06-19 | 厦门天马微电子有限公司 | A kind of display panel 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 | Pixel structure and display panel |
| CN109283760A (en) * | 2018-10-22 | 2019-01-29 | 惠科股份有限公司 | Display panel |
| CN110310609B (en) * | 2019-06-10 | 2021-10-01 | 惠科股份有限公司 | Display panel driving circuit and method |
| CN113781970B (en) * | 2020-06-09 | 2022-12-09 | 京东方科技集团股份有限公司 | Driving circuit and driving method, 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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| US20040246280A1 (en) * | 2003-06-06 | 2004-12-09 | Credelle Thomas Lloyd | Image degradation correction in novel liquid crystal displays |
| KR101179233B1 (en) * | 2005-09-12 | 2012-09-04 | 삼성전자주식회사 | Liquid Crystal Display Device and Method of Fabricating the Same |
| WO2007129425A1 (en) * | 2006-05-08 | 2007-11-15 | Sharp Kabushiki Kaisha | Liquid crystal display device |
| JP4877363B2 (en) * | 2009-06-29 | 2012-02-15 | カシオ計算機株式会社 | Liquid crystal display device and driving method thereof |
| EP2498126A4 (en) * | 2009-11-06 | 2013-10-30 | Sharp Kk | Liquid crystal display device |
| WO2013031610A1 (en) * | 2011-08-26 | 2013-03-07 | シャープ株式会社 | Liquid-crystal display device and method for driving liquid-crystal panel |
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