CN106098009A - The driving method of a kind of display panels and device - Google Patents
The driving method of a kind of display panels and device Download PDFInfo
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- CN106098009A CN106098009A CN201610679483.1A CN201610679483A CN106098009A CN 106098009 A CN106098009 A CN 106098009A CN 201610679483 A CN201610679483 A CN 201610679483A CN 106098009 A CN106098009 A CN 106098009A
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000005286 illumination Methods 0.000 claims abstract description 61
- 239000004973 liquid crystal related substance Substances 0.000 claims description 27
- 108090000623 proteins and genes Proteins 0.000 claims description 11
- 239000003086 colorant Substances 0.000 claims description 8
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3607—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
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Abstract
The present invention provides driving method and the device of a kind of display panels, and described driving method includes: obtain the first picture element signal of picture to be shown and the first backlight illumination of backlight；Judge whether described picture to be shown is that pure color shows picture；If then the brightness of backlight to be remained described first backlight illumination, and a described R grey decision-making, a described G grey decision-making are adjusted to the 2nd R grey decision-making, the 2nd G grey decision-making and the 2nd B grey decision-making respectively with a described B grey decision-making；If it is not, then a described R grey decision-making, a described G grey decision-making are adjusted to the 3rd R grey decision-making, the 3rd G grey decision-making and the 3rd B grey decision-making respectively with a described B grey decision-making, and described first backlight illumination are adjusted to the second backlight illumination.The present invention solves in prior art, the RGBW four primary display panels problem that brightness is relatively low when showing pure color picture, and power consumption is relatively low.
Description
[technical field]
The present invention relates to field of liquid crystal, particularly to driving method and the device of a kind of display panels.
[background technology]
The pixel of existing display panels is generally made up of three class sub-pixels, i.e. (green by R (red sub-pixel), G
Sub-pixel) and this three classes sub-pixel of B (blue subpixels) composition.Along with the development of lcd technology, there is again novel pixel
Constitute and the arrangement mode of sub-pixel is suggested, such as RGBW arrangement mode etc..RGBW arrangement mode is exactly that a pixel is by four
Individual sub-pixel is constituted, in i.e. one pixel in addition to conventional tri-sub-pixels of RGB, more than increased a W sub-pixel (white
Sub-pixel).In RGBW pixel, the arrangement mode of each sub-pixel can have multiple.Owing to RGBW pixel adds a W picture
Element, the most this kind of screen can make picture brighter showing picture when, and color of image can be more bright-coloured.But, equally
Owing to RGBW pixel adds a W sub-pixel, in the case of penetrance is identical, in the viewing area of formed objects, single
Shared by individual sub-pixel, the size of picture will reduce.The most also allow for screen and (the most individually show RGB tri-in display pure color
The picture of sub pixel) picture time screen intensity reduce, under identical GTG, relative to conventional RGB display panels,
Can cause not reaching intended display effect.Specifically, it is assumed that in unit are, on conventional RGB display panels often
There is 1/3 R sub-pixel, 1/3 G sub-pixel and 1/3 B sub-pixel in individual pixel, and each on RGBW display panels
Then there is 1/4 R pixel, 1/4 G pixel, 1/4 B pixel and 1/4 W pixel in pixel.As can be seen here, draw in display pure color
During face, the picture brightness that RGBW display panels shows less than the picture brightness of conventional RGB display panels, thus can be led
Cause pure color picture to display and the phenomenon of colour cast occurs, affect display effect.
The aperture opening ratio of the FHD display floater of the RGBW four primary of prior art is the FHD display floater of tradition RGB three primary colours
1.24 times, 1.37 times of the QHD display floater that aperture opening ratio is RGB three primary colours of the QHD display floater of RGBW four primary, simultaneously
The penetrance of white sub-pixels is close to 1, so using the penetrance of the display floater of RGBW four primary is that tradition three primary colours show
1.9～2.0 times of panel.But because introducing W pixel, so the aperture opening ratio of R, G and B becomes original tradition RGB three primary colours and shows
Showing the 75% of panel, such R, G, B and W four primary display floater is when showing R, G or B of pure color, and its brightness does not the most pass
The brightness of system RGB three primary colours display floater is high.The problems referred to above of prior art are urgently to be resolved hurrily.
[summary of the invention]
It is an object of the invention to provide driving method and the device of a kind of display panels, to solve prior art
In, RGBW four primary display panels show pure color picture time (referring generally to RGB or the picture of its two kinds of colour mixtures) brightness is relatively
Low problem.
Technical scheme is as follows:
A kind of driving method of display panels, described display panels is RGBW four primary display panels,
Described driving method includes:
Obtain the first picture element signal of picture to be shown and the first backlight illumination of backlight, and according to described first pixel
Signal respectively obtains R sub-pixel, G sub-pixel, B sub-pixel and a R grey decision-making of W sub-pixel, a G grey decision-making, a B ash
Rank value and a W grey decision-making；
According to described first picture element signal, it is judged that whether described picture to be shown is that pure color shows picture；
If described picture to be shown is pure color shows picture, then the brightness of backlight is remained described first backlight bright
Degree, and a described R grey decision-making, a described G grey decision-making and a described B grey decision-making are adjusted to respectively the 2nd R grey decision-making,
2nd G grey decision-making and the 2nd B grey decision-making so that the brightness that the described liquid crystal display picture after adjustment shows reaches target display picture
The brightness that face shows；
If described picture to be shown is ninsolid color shows picture, then by a described R grey decision-making, a described G grey decision-making
The 3rd R grey decision-making, the 3rd G grey decision-making and the 3rd B grey decision-making it is adjusted to respectively with a described B grey decision-making, and by described first
Backlight illumination is adjusted to the second backlight illumination so that the brightness that the described liquid crystal display picture after adjustment shows reaches described target
The brightness that display picture shows.
Preferably, described target display picture, for RGB three primary colours display panels at described R sub-pixel, described G
Pixel is respectively indicated as a described R grey decision-making, a described G grey decision-making and a described B with the grey decision-making of described B sub-pixel
Display picture during grey decision-making.
Preferably, a described R grey decision-making, a described G grey decision-making are adjusted to institute respectively with a described B grey decision-making
State the 2nd R grey decision-making, described 2nd G grey decision-making and described 2nd B grey decision-making, specifically include:
The brightness shown according to described target display picture, obtains the second picture element signal of described target display picture, and
Described 2nd R grey decision-making, described 2nd G grey decision-making and described 2nd B grey decision-making is obtained according to described second picture element signal；
Respectively a described R grey decision-making, a described G grey decision-making are adjusted to described respectively with a described B grey decision-making
2nd R grey decision-making, described 2nd G grey decision-making and described 2nd B grey decision-making.
Preferably, if described picture to be shown is ninsolid color shows picture, then by a described R grey decision-making, a described G
Grey decision-making and a described B grey decision-making are adjusted to the 3rd R grey decision-making, described 3rd G grey decision-making and described 3rd B GTG respectively
Value, and described first backlight illumination is adjusted to the second backlight illumination, specifically include:
The brightness shown according to described target display picture, calculates the brightness adjustment factor and the liquid crystal of backlight respectively
Show the GTG Dynamic gene of panel；
Obtain described second backlight illumination according to the described brightness adjustment factor, and obtain institute according to described GTG Dynamic gene
State the 3rd R grey decision-making, described 3rd G grey decision-making and described 3rd B grey decision-making；
By described R sub-pixel, described G sub-pixel and a described R grey decision-making of described B sub-pixel, a described G GTG
Value and a described B grey decision-making are adjusted to described 3rd R grey decision-making, described 3rd G grey decision-making and described 3rd B GTG respectively
Value, and described first backlight illumination is adjusted to described second backlight illumination.
Preferably, if described picture to be shown is pure color shows picture, the most also include:
Judge whether to make by individually improving described R sub-pixel, described G sub-pixel and the grey decision-making of described B sub-pixel
The brightness that show of described liquid crystal display picture reaches the brightness that described target shows that picture shows；
If of course, then the brightness of backlight is remained described first backlight illumination, and by a described R grey decision-making, institute
State a G grey decision-making and be adjusted to the 2nd R grey decision-making, the 2nd G grey decision-making and the 2nd B grey decision-making respectively with a described B grey decision-making,
The brightness that described liquid crystal display picture after adjusting is shown reaches the brightness that described target display picture shows；
If cannot, then a described R grey decision-making, a described G grey decision-making are adjusted respectively with a described B grey decision-making
It is the 3rd R grey decision-making, the 3rd G grey decision-making and the 3rd B grey decision-making, and it is bright that described first backlight illumination is adjusted to the second backlight
Degree so that the brightness that the described liquid crystal display picture after adjustment shows reaches the brightness that described target display picture shows.
Preferably, when a described W grey decision-making is 0, and a described R grey decision-making, a described G grey decision-making and described the
When one B grey decision-making is not all 0, described picture to be shown is that pure color shows picture.
Preferably, obtain described second backlight illumination according to the described brightness adjustment factor, specifically include:
The dutycycle of backlight signal is adjusted so that it is be adjusted to target duty ratio according to the described brightness adjustment factor；
According to described target duty than inputting described backlight signal so that the brightness of backlight is that described second backlight is bright
Degree.
A kind of driving means of display panels, described display panels is RGBW four primary display panels,
Described driving means includes:
Acquisition module, for obtaining the first picture element signal of picture to be shown and the first backlight illumination of backlight, and root
R sub-pixel, G sub-pixel, B sub-pixel and a R grey decision-making of W sub-pixel, a G is respectively obtained according to described first picture element signal
Grey decision-making, a B grey decision-making and a W grey decision-making；
Judge module, for according to described first picture element signal, it is judged that whether described picture to be shown is that pure color shows picture
Face；
First processing module, for being that pure color shows picture when described picture to be shown, then keeps the brightness of backlight
For described first backlight illumination, and a described R grey decision-making, a described G grey decision-making are adjusted respectively with a described B grey decision-making
Whole is the 2nd R grey decision-making, the 2nd G grey decision-making and the 2nd B grey decision-making so that it is bright that the described liquid crystal display picture after adjustment shows
Degree reaches the brightness that target display picture shows；
Second processing module, for being ninsolid color display picture when described picture to be shown, then by a described R GTG
Value, a described G grey decision-making and a described B grey decision-making are adjusted to the 3rd R grey decision-making, the 3rd G grey decision-making and the 3rd B ash respectively
Rank are worth, and described first backlight illumination is adjusted to the second backlight illumination so that the described liquid crystal display picture after adjustment shows
Brightness reach the display brightness that shows of picture of described target.
Preferably, described first processing module includes:
Acquiring unit, for according to the display brightness that show of picture of described target, obtains described target and shows the of picture
Two picture element signals, and obtain described 2nd R grey decision-making, described 2nd G grey decision-making and described the according to described second picture element signal
Two B grey decision-making；
Adjustment unit, for dividing a described R grey decision-making, a described G grey decision-making with a described B grey decision-making respectively
It is not adjusted to described 2nd R grey decision-making, described 2nd G grey decision-making and described 2nd B grey decision-making.
Preferably, described second processing unit includes:
Computing unit, for the brightness shown according to described target display picture, the brightness calculating backlight respectively is adjusted
Integral divisor and the GTG Dynamic gene of display panels；
Converting unit, for obtaining described second backlight illumination according to the described brightness adjustment factor, and according to described GTG
Dynamic gene obtains described 3rd R grey decision-making, described 3rd G grey decision-making and described 3rd B grey decision-making；
Adjustment unit, for by described R sub-pixel, a described R grey decision-making of described G sub-pixel and described B sub-pixel,
A described G grey decision-making and a described B grey decision-making are adjusted to described 3rd R grey decision-making, described 3rd G grey decision-making and institute respectively
State the 3rd B grey decision-making, and described first backlight illumination is adjusted to described second backlight illumination.
Beneficial effects of the present invention:
The driving method of a kind of display panels of the present invention and device, by judging whether picture to be shown is pure color
Display picture, and give different type of drive for pure color display picture and ninsolid color picture, preferably solve existing skill
In art, (referring generally to RGB or the picture of its two kinds of colour mixtures) brightness when showing pure color picture of RGBW four primary display panels
Relatively low problem, and power consumption is relatively low.
[accompanying drawing explanation]
Fig. 1 is the implementing procedure figure of the driving method of a kind of display panels of the embodiment of the present invention；
Fig. 2 is the overall structure schematic diagram of the driving means of a kind of display panels of the embodiment of the present invention.
[detailed description of the invention]
The explanation of following embodiment is particular implementation that is graphic with reference to add, that implement in order to illustrate the present invention may be used to
Example.The direction term that the present invention is previously mentioned, such as " on ", D score, "front", "rear", "left", "right", " interior ", " outward ", " side "
Deng, it is only the direction with reference to annexed drawings.Therefore, the direction term of use is to illustrate and understand the present invention, and is not used to
Limit the present invention.In the drawings, the unit that structure is similar is to represent with identical label.
Embodiment one
Refer to the implementing procedure figure of the driving method of a kind of display panels that Fig. 1, Fig. 1 are the embodiment of the present invention,
Described display panels is RGBW four primary display panels, from figure 1 it will be seen that described driving method includes:
Step S101: obtain the first picture element signal of picture to be shown and the first backlight illumination of backlight, and according to institute
State the first picture element signal and respectively obtain R sub-pixel, G sub-pixel, B sub-pixel and a R grey decision-making of W sub-pixel, a G GTG
Value, a B grey decision-making and a W grey decision-making.
Step S102: according to described first picture element signal, it is judged that whether described picture to be shown is that pure color shows picture.
In this step, when a described W grey decision-making is 0, and a described R grey decision-making, a described G grey decision-making and institute
Stating a B grey decision-making when being not all 0, described picture to be shown is that pure color shows picture.
Step S103: show picture if described picture to be shown is ninsolid color, then by a described R grey decision-making, described the
One G grey decision-making and a described B grey decision-making are adjusted to the 3rd R grey decision-making, the 3rd G grey decision-making and the 3rd B grey decision-making respectively, and will
Described first backlight illumination is adjusted to the second backlight illumination so that the brightness that the described liquid crystal display picture after adjustment shows reaches
The brightness that described target display picture shows.
In this step, described target display picture, for RGB three primary colours display panels at described R sub-pixel, described
The grey decision-making of G sub-pixel and described B sub-pixel is respectively indicated as a described R grey decision-making, a described G grey decision-making and described the
Display picture during one B grey decision-making.
In this step, if described picture to be shown is ninsolid color shows picture, then by a described R grey decision-making, described
Oneth G grey decision-making and a described B grey decision-making are adjusted to the 3rd R grey decision-making, described 3rd G grey decision-making and described 3rd B respectively
Grey decision-making, and described first backlight illumination is adjusted to the second backlight illumination, specifically include:
The brightness shown according to described target display picture, calculates the brightness adjustment factor and the liquid crystal of backlight respectively
Show the GTG Dynamic gene of panel.
Obtain described second backlight illumination according to the described brightness adjustment factor, and obtain institute according to described GTG Dynamic gene
State the 3rd R grey decision-making, described 3rd G grey decision-making and described 3rd B grey decision-making.
By described R sub-pixel, described G sub-pixel and a described R grey decision-making of described B sub-pixel, a described G GTG
Value and a described B grey decision-making are adjusted to described 3rd R grey decision-making, described 3rd G grey decision-making and described 3rd B GTG respectively
Value, and described first backlight illumination is adjusted to described second backlight illumination.Here, it is common that by improving LCD
The GTG of plate, and reduce backlight brightness realize.
In this step, obtain described second backlight illumination according to the described brightness adjustment factor, preferably specifically include following
Step:
First, adjust the dutycycle of backlight signal according to the described brightness adjustment factor so that it is be adjusted to target duty ratio.
Second, according to described target duty than inputting described backlight signal so that the brightness of backlight is described second back of the body
Brightness.
Step S104: if described picture to be shown is pure color shows picture, then the brightness of backlight is remained described the
One backlight illumination, and a described R grey decision-making, a described G grey decision-making are adjusted to second respectively with a described B grey decision-making
R grey decision-making, the 2nd G grey decision-making and the 2nd B grey decision-making so that the brightness that the described liquid crystal display picture after adjustment shows reaches mesh
The brightness that mark display picture shows.
In this step, a described R grey decision-making, a described G grey decision-making are adjusted respectively with a described B grey decision-making
For described 2nd R grey decision-making, described 2nd G grey decision-making and described 2nd B grey decision-making, specifically include:
The brightness shown according to described target display picture, obtains the second picture element signal of described target display picture, and
Described 2nd R grey decision-making, described 2nd G grey decision-making and described 2nd B grey decision-making is obtained according to described second picture element signal.
Respectively a described R grey decision-making, a described G grey decision-making are adjusted to described respectively with a described B grey decision-making
2nd R grey decision-making, described 2nd G grey decision-making and described 2nd B grey decision-making.
In the present embodiment, if described picture to be shown is pure color shows picture, the most further comprising the steps of:
First, it may be judged whether can be by individually improving the GTG of described R sub-pixel, described G sub-pixel and described B sub-pixel
Value so that the brightness that described liquid crystal display picture shows reaches the brightness that described target display picture shows.
Second, if can, the brightness of backlight is remained described first backlight illumination, and by a described R GTG
Value, a described G grey decision-making and a described B grey decision-making are adjusted to the 2nd R grey decision-making, the 2nd G grey decision-making and the 2nd B ash respectively
Rank are worth so that the brightness that the described liquid crystal display picture after adjustment shows reaches the brightness that described target display picture shows.
3rd, if cannot, by a described R grey decision-making, a described G grey decision-making with a described B grey decision-making respectively
It is adjusted to the 3rd R grey decision-making, the 3rd G grey decision-making and the 3rd B grey decision-making, and described first backlight illumination is adjusted to the second backlight
Brightness so that the brightness that the described liquid crystal display picture after adjustment shows reaches the brightness that described target display picture shows.?
Here, it is common that by improving the GTG of display panels, and the brightness reducing backlight realizes.
The driving method of a kind of display panels of the present invention, by judging whether picture to be shown is that pure color shows picture
Face, and give different type of drive for pure color display picture and ninsolid color picture, and be that pure color is drawn when picture to be shown
During face, continue to judge to make individually through improving described R sub-pixel, described G sub-pixel and the grey decision-making of described B sub-pixel
The brightness that show of described liquid crystal display picture reaches the brightness that described target shows that picture shows, and give different driving sides
Formula, preferably solves in prior art, RGBW four primary display panels show pure color picture time (refer generally to RGB or
The picture of its two kinds of colour mixtures) the relatively low problem of brightness, and power consumption is relatively low.
Embodiment two
The overall structure of the driving means 10 that refer to a kind of display panels that Fig. 2, Fig. 2 are the embodiment of the present invention is shown
Being intended to, described display panels is RGBW four primary display panels, from figure 1 it will be seen that a kind of liquid crystal of the present invention
The driving means 10 of display floater includes:
Acquisition module 20, for obtaining the first picture element signal of picture to be shown and the first backlight illumination of backlight, and
According to described first picture element signal respectively obtain R sub-pixel, G sub-pixel, a R grey decision-making of B sub-pixel and W sub-pixel, the
One G grey decision-making, a B grey decision-making and a W grey decision-making；
Judge module 30, for according to described first picture element signal, it is judged that whether described picture to be shown is that pure color shows
Picture；
First processing module 40, for being that pure color shows picture when described picture to be shown, then protects the brightness of backlight
Hold as described first backlight illumination, and by a described R grey decision-making, a described G grey decision-making with a described B grey decision-making respectively
It is adjusted to the 2nd R grey decision-making, the 2nd G grey decision-making and the 2nd B grey decision-making so that the described liquid crystal display picture after adjustment shows
Brightness reaches the brightness that target display picture shows；
Second processing module 50, for being ninsolid color display picture when described picture to be shown, then by a described R GTG
Value, a described G grey decision-making and a described B grey decision-making are adjusted to the 3rd R grey decision-making, the 3rd G grey decision-making and the 3rd B ash respectively
Rank are worth, and described first backlight illumination is adjusted to the second backlight illumination so that the described liquid crystal display picture after adjustment shows
Brightness reach the display brightness that shows of picture of described target.
In the present embodiment, described first processing module 40 includes:
Acquiring unit 41, for the brightness shown according to described target display picture, obtains described target display picture
Second picture element signal, and obtain described 2nd R grey decision-making, described 2nd G grey decision-making with described according to described second picture element signal
2nd B grey decision-making；
Adjustment unit 42, for respectively by a described R grey decision-making, a described G grey decision-making and a described B grey decision-making
It is adjusted to described 2nd R grey decision-making, described 2nd G grey decision-making and described 2nd B grey decision-making respectively.
In the present embodiment, described second processing module 50 includes:
Computing unit 51, for the brightness shown according to described target display picture, calculates the brightness of backlight respectively
Dynamic gene and the GTG Dynamic gene of display panels；
Converting unit 52, for obtaining described second backlight illumination according to the described brightness adjustment factor, and according to described ash
Contrast integral divisor obtains described 3rd R grey decision-making, described 3rd G grey decision-making and described 3rd B grey decision-making；
Adjustment unit 53, for the described R GTG by described R sub-pixel, described G sub-pixel and described B sub-pixel
Value, a described G grey decision-making and a described B grey decision-making are adjusted to described 3rd R grey decision-making, described 3rd G grey decision-making respectively
With described 3rd B grey decision-making, and described first backlight illumination is adjusted to described second backlight illumination.Here, it is common that logical
Cross the GTG improving display panels, and the brightness reducing backlight realizes.
The driving means 10 of a kind of display panels of the present invention, by judging whether picture to be shown is that pure color shows
Picture, and give different type of drive for pure color display picture and ninsolid color picture, preferably solve in prior art,
(referring generally to RGB or the picture of its two kinds of colour mixtures) brightness when showing pure color picture of RGBW four primary display panels is relatively low
Problem, and power consumption is relatively low.
In sum, although the present invention is disclosed above with preferred embodiment, but above preferred embodiment and be not used to limit
The present invention processed, those of ordinary skill in the art, without departing from the spirit and scope of the present invention, all can make various change and profit
Decorations, therefore protection scope of the present invention defines in the range of standard with claim.
Claims (10)
1. a driving method for display panels, described display panels is RGBW four primary display panels, its
Being characterised by, described driving method includes:
Obtain the first picture element signal of picture to be shown and the first backlight illumination of backlight, and according to described first picture element signal
Respectively obtain R sub-pixel, G sub-pixel, B sub-pixel and a R grey decision-making of W sub-pixel, a G grey decision-making, a B grey decision-making
With a W grey decision-making；
According to described first picture element signal, it is judged that whether described picture to be shown is that pure color shows picture；
If described picture to be shown is pure color shows picture, then the brightness of backlight is remained described first backlight illumination, and
A described R grey decision-making, a described G grey decision-making are adjusted to the 2nd R grey decision-making, the 2nd G respectively with a described B grey decision-making
Grey decision-making and the 2nd B grey decision-making so that the brightness that the described liquid crystal display picture after adjustment shows reaches target display picture and shows
The brightness shown；
If described picture to be shown is ninsolid color shows picture, then by a described R grey decision-making, a described G grey decision-making and institute
State a B grey decision-making and be adjusted to the 3rd R grey decision-making, the 3rd G grey decision-making and the 3rd B grey decision-making respectively, and by described first backlight
Brightness adjustment is the second backlight illumination so that the brightness that the described liquid crystal display picture after adjustment shows reaches described target and shows
The brightness that picture shows.
Driving method the most according to claim 1, it is characterised in that described target display picture, for RGB three primary colours liquid crystal
Display floater is respectively indicated as a described R GTG at described R sub-pixel, described G sub-pixel with the grey decision-making of described B sub-pixel
Display picture when value, a described G grey decision-making and a described B grey decision-making.
Driving method the most according to claim 2, it is characterised in that by a described R grey decision-making, a described G GTG
Value and a described B grey decision-making are adjusted to described 2nd R grey decision-making, described 2nd G grey decision-making and described 2nd B GTG respectively
Value, specifically includes:
According to the display brightness that show of picture of described target, obtain described target and show the second picture element signal of picture, and according to
Described second picture element signal obtains described 2nd R grey decision-making, described 2nd G grey decision-making and described 2nd B grey decision-making；
Respectively a described R grey decision-making, a described G grey decision-making are adjusted to described 2nd R respectively with a described B grey decision-making
Grey decision-making, described 2nd G grey decision-making and described 2nd B grey decision-making.
Driving method the most according to claim 2, it is characterised in that if described picture to be shown is ninsolid color shows picture
Face, then a described R grey decision-making, a described G grey decision-making and a described B grey decision-making are adjusted to respectively the 3rd R grey decision-making,
Described 3rd G grey decision-making and described 3rd B grey decision-making, and described first backlight illumination is adjusted to the second backlight illumination, specifically
Including:
The brightness shown according to described target display picture, calculates the brightness adjustment factor and the LCD of backlight respectively
The GTG Dynamic gene of plate；
Obtain described second backlight illumination according to the described brightness adjustment factor, and obtain described according to described GTG Dynamic gene
Three R grey decision-making, described 3rd G grey decision-making and described 3rd B grey decision-making；
By described R sub-pixel, described G sub-pixel and a described R grey decision-making of described B sub-pixel, a described G grey decision-making with
A described B grey decision-making is adjusted to described 3rd R grey decision-making, described 3rd G grey decision-making and described 3rd B grey decision-making respectively, and
Described first backlight illumination is adjusted to described second backlight illumination.
Driving method the most according to claim 1, it is characterised in that if described picture to be shown is pure color shows picture,
The most also include:
Judging whether can be by individually improving the grey decision-making of described R sub-pixel, described G sub-pixel and described B sub-pixel so that institute
State the brightness that liquid crystal display picture shows and reach the brightness that described target display picture shows；
If of course, then the brightness of backlight is remained described first backlight illumination, and by a described R grey decision-making, described
One G grey decision-making and a described B grey decision-making are adjusted to the 2nd R grey decision-making, the 2nd G grey decision-making and the 2nd B grey decision-making respectively so that
The brightness that described liquid crystal display picture after adjustment shows reaches the brightness that described target display picture shows；
If cannot, then a described R grey decision-making, a described G grey decision-making and a described B grey decision-making are adjusted to respectively the
Three R grey decision-making, the 3rd G grey decision-making and the 3rd B grey decision-making, and described first backlight illumination is adjusted to the second backlight illumination, make
The brightness that described liquid crystal display picture after must adjusting shows reaches the brightness that described target display picture shows.
Driving method the most according to claim 1, it is characterised in that when a described W grey decision-making is 0, and a described R
When grey decision-making, a described G grey decision-making and a described B grey decision-making are not all 0, described picture to be shown is that pure color shows picture
Face.
Driving method the most according to claim 4, it is characterised in that obtain described second according to the described brightness adjustment factor
Backlight illumination, specifically includes:
The dutycycle of backlight signal is adjusted so that it is be adjusted to target duty ratio according to the described brightness adjustment factor；
According to described target duty than inputting described backlight signal so that the brightness of backlight is described second backlight illumination.
8. a driving means for display panels, described display panels is RGBW four primary display panels, its
Being characterised by, described driving means includes:
Acquisition module, for obtaining the first picture element signal of picture to be shown and the first backlight illumination of backlight, and according to institute
State the first picture element signal and respectively obtain R sub-pixel, G sub-pixel, B sub-pixel and a R grey decision-making of W sub-pixel, a G GTG
Value, a B grey decision-making and a W grey decision-making；
Judge module, for according to described first picture element signal, it is judged that whether described picture to be shown is that pure color shows picture；
First processing module, for being that pure color shows picture when described picture to be shown, then remains institute by the brightness of backlight
State the first backlight illumination, and a described R grey decision-making, a described G grey decision-making are adjusted to respectively with a described B grey decision-making
2nd R grey decision-making, the 2nd G grey decision-making and the 2nd B grey decision-making so that the brightness that the described liquid crystal display picture after adjustment shows reaches
The brightness shown to target display picture；
Second processing module, for being ninsolid color display picture when described picture to be shown, then by a described R grey decision-making, institute
State a G grey decision-making and be adjusted to the 3rd R grey decision-making, the 3rd G grey decision-making and the 3rd B grey decision-making respectively with a described B grey decision-making,
And described first backlight illumination is adjusted to the second backlight illumination so that the brightness that the described liquid crystal display picture after adjustment shows
Reach the brightness that described target display picture shows.
Driving means the most according to claim 8, it is characterised in that described first processing module includes:
Acquiring unit, for the brightness shown according to described target display picture, obtains the second picture of described target display picture
Element signal, and obtain described 2nd R grey decision-making, described 2nd G grey decision-making and described 2nd B ash according to described second picture element signal
Rank are worth；
Adjustment unit, for adjusting a described R grey decision-making, a described G grey decision-making respectively with a described B grey decision-making respectively
Whole for described 2nd R grey decision-making, described 2nd G grey decision-making and described 2nd B grey decision-making.
Driving means the most according to claim 8, it is characterised in that described second processing unit includes:
Computing unit, for according to the display brightness that shows of picture of described target, calculate respectively the brightness adjustment of backlight because of
Son and the GTG Dynamic gene of display panels；
Converting unit, for obtaining described second backlight illumination according to the described brightness adjustment factor, and adjusts according to described GTG
The factor obtains described 3rd R grey decision-making, described 3rd G grey decision-making and described 3rd B grey decision-making；
Adjustment unit, for by described R sub-pixel, described G sub-pixel and a described R grey decision-making of described B sub-pixel, described
Oneth G grey decision-making and a described B grey decision-making are adjusted to described 3rd R grey decision-making, described 3rd G grey decision-making and described the respectively
Three B grey decision-making, and described first backlight illumination is adjusted to described second backlight illumination.
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