CN106128405A - A kind of system and method for the pure color picture brightness adjusting RGBW panel - Google Patents
A kind of system and method for the pure color picture brightness adjusting RGBW panel Download PDFInfo
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- CN106128405A CN106128405A CN201610804579.6A CN201610804579A CN106128405A CN 106128405 A CN106128405 A CN 106128405A CN 201610804579 A CN201610804579 A CN 201610804579A CN 106128405 A CN106128405 A CN 106128405A
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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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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
- G09G2320/0633—Adjustment of display parameters for control of overall brightness by amplitude modulation of the brightness of the illumination source
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Abstract
The invention discloses the system and method for a kind of pure color picture brightness adjusting RGBW panel, relate to a kind of system and method adjusting display panels pure color picture brightness.Problem to be solved by this invention is that in prior art, RGBW framework panel exists the display defect that picture is the darkest.The system of the present invention includes: detecting unit, is set to when RGBW Display panel pure color picture, the brightness of each frame pixel in detecting pure color picture；Then according to the average brightness value of the brightness calculation pure color picture detecting each frame pixel；And average brightness value is compared with the mean flow rate desired value preset, obtain brightness gain values.Computing unit, is set to according to brightness gain values calculating current yield value.Backlight driving unit, is set to adjust according to current gain backlight voltage or the back facet current of the supplying channels exporting backlight, thus increases the brightness of each frame pixel.The present invention is applicable to the manufacture field of display panels.
Description
Technical field
The present invention relates to a kind of system and method adjusting display panels pure color picture brightness.
Background technology
Rgb color pattern is a kind of color standard of industrial quarters, is by leading to red (R), green (G), blue (B) three colors
The change in road and their superpositions each other obtain color miscellaneous；R, G, B represent red, green, blue three and lead to
The color in road.Rgb color pattern almost include human eyesight can all colours of perception, be to use the widest color at present
One of system.What the pixel (pixel) of traditional RGB liquid crystal panel was designed with is the arrangement mode of RGB three primary colors regularity,
As shown in Figure 3.In figure 3, R represents that red sub-pixel, G represent that green sub-pixels, B represent blue subpixels.
Recently the RGBW technology that comparison is popular is occurred in that.RGBW technology is on tradition RGB (red, green, blue) three primary colors basis
On add white, form RGBW framework.Pixel (pixel) design of RGBW liquid crystal panel is generally adopted by Pen-tile
The arrangement mode of (arrangement mode of a sub pixel), as shown in Figure 4.Owing to RGBW liquid crystal panel is at R, G, B sub-pixel
(red, green, blue sub-pixel) design is mixed into a kind of W sub-pixel (white sub-pixels) more, therefore identical in panel size
In the case of, quantitative proportion each shared for R, G, B sub-pixel in RGBW framework is (common relative to Normal RGB framework
RGB framework) reduce about 1/2.Number as a example by the resolution of FHD 1080*1920, in RGB framework, shared by Rsub-pixel
Amount is 1080；And in RGBW framework, the quantity shared by R sub-pixel is only 540.Therefore, with Normal RGB framework
Panel is compared, and RGBW panel framework exists a kind of unavoidable framework defect, it may be assumed that for pure color pictures such as pure R, pure G, pure B,
The display defect that picture is the darkest can be there is in RGBW framework panel.
Summary of the invention
There is, for RGBW framework panel in above-mentioned prior art, the display defect that pure color picture is the darkest, present applicant proposes
A kind of system and method for the pure color picture brightness adjusting RGBW panel.
According to an aspect of the invention, it is provided the system of a kind of pure color picture brightness adjusting RGBW panel, including:
Detecting unit, is set to, when described RGBW Display panel pure color picture, detect each frame in described pure color picture
The brightness of pixel；Then according to detecting the average brightness value of pure color picture described in the brightness calculation of each frame pixel；And by institute
State average brightness value to compare with the mean flow rate desired value preset, obtain brightness gain values；
Computing unit, is set to according to described brightness gain values calculating current yield value；
Backlight driving unit, is set to adjust the output back of the body to the supplying channels of backlight according to described current gain
Photovoltage or back facet current, thus increase the brightness of each frame pixel.
Preferably, described system also includes white sub-pixels grey decision-making adjustment unit, and it is set to reduce described RGBW face
The grey decision-making of the brightness of white sub-pixels in plate；And notify that described detecting unit is each by detecting in current pure color picture subsequently
The brightness of frame pixel obtains current brightness gain values.
According to another aspect of the present invention, it is provided that a kind of method of pure color picture brightness adjusting RGBW panel, bag
Include:
By detecting unit when described RGBW Display panel pure color picture, detect each frame pixel in described pure color picture
Brightness；Then, by detecting unit according to detecting the average brightness value of pure color picture described in the brightness calculation of each frame pixel；Detect
Survey unit and described average brightness value is compared with the mean flow rate desired value preset, obtaining brightness gain values；
By computing unit according to described brightness gain values calculating current yield value；
Adjust the backlight electricity of the supplying channels exporting backlight according to described current gain by backlight driving unit
Pressure or back facet current, thus increase the brightness of each frame pixel.
Preferably, described method also includes:
The intensity gray scale value of white sub-pixels in described RGBW panel is reduced by white sub-pixels grey decision-making adjustment unit；And
Notify that described detecting unit obtains current brightness increasing by detecting the brightness of each frame pixel in current pure color picture subsequently
Benefit value.
Preferably, described mean flow rate desired value is based on the design architecture preset and the mean flow rate theoretical value generated.
Preferably, described basis detects the average brightness value of pure color picture described in the brightness calculation of each frame pixel, bag
Include: be the average brightness value that the machine word that computer is capable of identify that calls the turn by the brightness processed of each frame pixel detected.
Preferably, the described brightness ash being reduced white sub-pixels in RGBW panel by white sub-pixels grey decision-making adjustment unit
Rank are worth, including:
By white sub-pixels grey decision-making adjustment unit by the brightness value of white sub-pixels in current pure color picture with preset
White sub-pixels mean flow rate desired value compares, and the GTG obtaining white sub-pixels brightness reduces range value；
Range value is reduced according to the GTG of described white sub-pixels brightness by described white sub-pixels grey decision-making adjustment unit,
Adjust backlight voltage or the back facet current of the supplying channels exporting the backlight corresponding to white sub-pixels, thus reduce
The grey decision-making of the brightness of each frame white sub-pixels.
Preferably, described white sub-pixels mean flow rate desired value is based on the design architecture preset and white that generates
Average luminance of pixels theoretical value.
Preferably, the described brightness ash being reduced white sub-pixels in RGBW panel by white sub-pixels grey decision-making adjustment unit
Rank are worth, including:
By white sub-pixels grey decision-making adjustment unit by the saturation of current pure color picture and the saturation desired value preset
Compare, obtain the value added of the saturation of current pure color picture；White sub-pixels grey decision-making adjustment unit is worked as according to described
The value added of the saturation of front pure color picture reduces white sub-pixels with the GTG decreasing value relation of white sub-pixels brightness
The grey decision-making of brightness.
Preferably, the method for the pure color picture brightness of described adjustment RGBW panel, also include:
By the way of test experiment, the value added of the saturation setting up pure color picture drops with white sub-pixels intensity gray scale
The vision relation of low value.
Compared with prior art, such scheme has following following advantage or a beneficial effect:
Use the system and method for a kind of pure color picture brightness adjusting RGBW panel of the present invention, it is possible to solve
The problem that RGBW framework display panels pure color picture is the darkest, makes user experience the vision consistent with NormalRGB framework
Effect.
The present invention is the most easy to use, and can reach to improve on the premise of not changing the design of LCD Pixel
The purpose of RGBW framework defect.Even if having designed, at display panels, the situation that even section components has produced
Under, it is also possible to utilize the present invention that RGBW panel is improved；So can save substantial amounts of expense, and applicable liquid crystal panel system
Make upgrading.
Above-mentioned technical characteristic can combine in any suitable manner or be substituted, as long as can reach by the technical characteristic of equivalence
To the purpose of the present invention.
Accompanying drawing explanation
Hereinafter based on embodiment reference accompanying drawing, the present invention will be described in more detail.Wherein:
Fig. 1 shows the relation of detecting unit, computing unit and backlight driving unit in embodiment one；
Fig. 2 shows that in embodiment two, white sub-pixels grey decision-making adjustment unit, detecting unit, computing unit and backlight are driven
The relation of moving cell；
Fig. 3 shows that RGB three primary colors uses regular pixel arrangement mode schematic diagram；
Fig. 4 shows that RGBW uses the arrangement mode schematic diagram of Pen-tile；
Fig. 5 shows that the saturation of picture and W Sub-pixel (white Sub-pixel) accounting are following relation；
Fig. 6 shows that the saturation of picture and brightness size are following relation；
Fig. 7 shows that the saturation of picture and back facet current size are following relation；
Fig. 8 shows the steps flow chart of the method for the pure color picture brightness adjusting RGBW panel in embodiment three；
Fig. 9 shows the steps flow chart of the method for the pure color picture brightness adjusting RGBW panel in embodiment four.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
Embodiment one
The system of a kind of pure color picture brightness adjusting RGBW panel, is built in mainboard and maybe can drive the driving of LCD screen
In block.With reference to Fig. 1, described system includes detecting unit, computing unit and backlight driving unit.
Specifically, detecting unit, it is set to, when described RGBW Display panel pure color picture, detect in described pure color picture
The brightness of each frame pixel；Then according to detecting the average brightness value of pure color picture described in the brightness calculation of each frame pixel；
And described average brightness value is compared with the mean flow rate desired value preset, obtain brightness gain values.
Computing unit, is set to according to described brightness gain values calculating current yield value.
Backlight driving unit, is set to adjust the output back of the body to the supplying channels of backlight according to described current gain
Photovoltage or back facet current, thus increase the brightness of each frame pixel.
First the brightness of current pure color picture compared by the system of the present embodiment with default mean flow rate desired value, and
Brightness gain values is obtained according to comparative result.Then obtain current gain with brightness gain values for foundation, and then increase backlight
Brightness, improves the brightness of currently displaying pure color picture.Mean flow rate desired value is set in advance, and the system of the present embodiment can
To adjust currently displaying pure color picture brightness according to brightness value set in advance.So it is not only able to adjust the pure of RGBW panel
Color picture brightness, and can be adjusted according to predetermined brightness value.
Based on above-mentioned analysis, use the system of the pure color picture brightness of adjustment RGBW panel of the present invention, it is possible to solve
The problem that certainly RGBW framework display panels pure color picture is the darkest, makes user experience regard consistent with NormalRGB framework
Feel effect.
Owing to this system implemented can be built in the driving block that mainboard maybe can drive LCD screen, so this enforcement
System easy to use.Meanwhile, the system of this enforcement is not required to change the structure of available liquid crystal display floater, it is possible to
On the premise of LCD Pixel designs, it is achieved increase the pure color picture brightness of RGBW panel.Even if at display panels
In the case of section components has produced, it is also possible to utilize the present invention that RGBW panel is improved.So can save a large amount of
Expense, and applicable liquid crystal panel manufacture upgrading.
Embodiment two
The system of a kind of pure color picture brightness adjusting RGBW panel, is built in mainboard and maybe can drive the driving of LCD screen
In block.With reference to Fig. 2, described system includes white sub-pixels grey decision-making adjustment unit, detecting unit, computing unit and backlight
Driver element.
Specifically, white sub-pixels grey decision-making adjustment unit, it is set to reduce white sub-pixels in described RGBW panel
The grey decision-making of brightness；And notify that described detecting unit comes by detecting the brightness of each frame pixel in current pure color picture subsequently
To current brightness gain values.
Detecting unit, is set to, when described RGBW Display panel pure color picture, detect each frame in described pure color picture
The brightness of pixel；Then according to detecting the average brightness value of pure color picture described in the brightness calculation of each frame pixel；And by institute
State average brightness value to compare with the mean flow rate desired value preset, obtain brightness gain values.
Computing unit, is set to according to described brightness gain values calculating current yield value.
Backlight driving unit, is set to adjust the output back of the body to the supplying channels of backlight according to described current gain
Photovoltage or back facet current, thus increase the brightness of each frame pixel.
Comparing embodiment one, the system of the present embodiment adds the process that white sub-pixels grey decision-making adjusts.Specifically, originally
The grey decision-making of white sub-pixels in RGBW framework panel is first suitably reduced, to reduce white sub-pixels pair by the system of embodiment
The impact of current pure color picture saturation, then realizes entering the pure color picture brightness of RGBW panel on the basis of embodiment one
Row sum-equal matrix.It can be seen that the present embodiment not only solves the problem that RGBW framework display panels pure color picture is the darkest, and
Pure color picture can be made to have good saturation.
Embodiment three
As shown in Figure 8, it is the embodiment of the present invention a kind of method of pure color picture brightness of adjusting RGBW panel.The present embodiment
Method mainly include that step 101 is to step 103.
In a step 101, when RGBW Display panel pure color picture, detecting unit detect in described pure color picture each
The brightness of frame pixel；Then, by detecting unit according to detecting the average of pure color picture described in the brightness calculation of each frame pixel
Brightness value；Described average brightness value is also compared by detecting unit with the mean flow rate desired value preset, and obtains luminance gain
Value.
In a step 102, computing unit is according to the brightness gain values calculating current yield value obtained in step 101.
In step 103, backlight driving unit the output power supply to backlight is adjusted according to described current gain
The backlight voltage of passage or back facet current, thus increase the brightness of each frame pixel.
The pure color picture brightness method of adjustment RGBW panel of the present invention is consistent with the adjustment principle of embodiment one.
First the brightness of current pure color picture compared by the method for the present embodiment with default mean flow rate desired value, and according to comparing
Result obtains brightness gain values.Then obtain current gain with brightness gain values for foundation, and then increase backlight illumination, improve
The brightness of currently displaying pure color picture.And mean flow rate desired value is set in advance, the method for the present embodiment can be by
Currently displaying pure color picture brightness is adjusted according to brightness value set in advance.So the method described in the present embodiment can solve the problem that
The problem that RGBW framework display panels pure color picture is the darkest, makes user experience the vision consistent with Normal RGB framework
Effect.
Embodiment four
As it is shown in figure 9, be the another kind of method of the pure color picture brightness of embodiment of the present invention adjustment RGBW panel.This enforcement
The method of example mainly includes that step 201 is to step 204.
In step 201, when RGBW Display panel pure color picture, white sub-pixels grey decision-making adjustment unit reduce institute
State the intensity gray scale value of white sub-pixels in RGBW panel；And notify that described detecting unit is by detecting current pure color picture subsequently
In the brightness of each frame pixel obtain current brightness gain values.
In step 202., after detecting unit has notice, detecting unit detect each frame pixel in described pure color picture
Brightness；Then, by detecting unit according to detecting the average brightness value of pure color picture described in the brightness calculation of each frame pixel；
Described average brightness value is also compared by detecting unit with the mean flow rate desired value preset, and obtains brightness gain values.
In step 203, computing unit is according to the brightness gain values calculating current yield value obtained.
In step 204, backlight driving unit the output power supply to backlight is adjusted according to described current gain
The backlight voltage of passage or back facet current, thus increase the brightness of each frame pixel.
For RGBW framework panel, there is following characteristics:
The saturation of picture and W Sub-pixel (white Sub-pixel, white sub-pixels) accounting are following relation: W
Sub-pixel accounting is the biggest, and picture saturation is the lowest, the most as shown in Figure 5.
Saturation and the brightness size of picture are following relation: brightness is the biggest, and saturation is the highest, the most as shown in Figure 6.
Saturation and the back facet current size of picture are following relation: electric current is the biggest, and saturation is the highest, concrete such as Fig. 7 institute
Show.
Owing to RGBW framework panel exists above feature, thus for RGBW framework panel white sub-pixels brightness value relatively
High situation, or the situation that RGBW framework panel pure color picture saturation is relatively low, or white sub-pixels accounting is bigger
RGBW framework panel, directly increases pure color picture brightness according to the scheme described in step 101 to step 103 and can cause pure color picture
Saturation decrease to a certain extent.
Accordingly, it would be desirable to before computing unit calculating current yield value, first with white sub-pixels grey decision-making adjustment unit
The grey decision-making of the white sub-pixels in currently displaying pure color picture is reduced；Then reinform described detecting unit to be worked as by detecting
In front pure color picture, the brightness of each frame pixel obtains current brightness gain values；And then regulation pure color picture brightness.So,
Not only solve the problem that RGBW framework display panels pure color picture is the darkest, and make the pure color picture of display have well
Saturation.
Embodiment five
In step 101 or step 202, detecting unit detect the brightness of each frame pixel in described pure color picture；And
By detecting unit according to detecting the average brightness value of pure color picture described in the brightness calculation of each frame pixel；Then, detecting is single
Described average brightness value is compared by unit with the mean flow rate desired value preset, and obtains brightness gain values.
In the process, described mean flow rate desired value is based on the design architecture preset and the mean flow rate that generates is theoretical
Value.If current pure color picture is not through comparing with default mean flow rate desired value, current pure color picture
The brightness showed has gap with theoretical value certainly.Accordingly, it would be desirable to first average by frame pixel each in pure color picture
Brightness value compares with the mean flow rate desired value preset, and generates one group of brightness comparison result gain (Gain) value, the brightest
Degree yield value.So, facilitate the brightness adjustment in systematic direction later stage, solve the problem that RGBW pure color picture is the darkest.
Described brightness gain values is really Gain (gain) value of brightness comparison result, itself is a coefficient value.
Detecting unit calculates in the pure color picture detected after the average brightness value of each frame pixel, can be with default mean flow rate target
Value show a relation (+,-, * ,/etc.), here it is comparison result yield value, namely brightness gain values.
Embodiment six
In step 101 or step 202, detecting unit detect the brightness of each frame pixel in described pure color picture；And
By detecting unit according to detecting the average brightness value of pure color picture described in the brightness calculation of each frame pixel；Then, detecting is single
Described average brightness value is compared by unit with the mean flow rate desired value preset, and obtains brightness gain values.
In the process, described basis detects the average brightness value of pure color picture described in the brightness calculation of each frame pixel
Step, including: by the brightness processed of each frame pixel detected be the machine word that computer is capable of identify that call the turn flat
All brightness values.
The expression way that actual brightness value is general be cd/m^2 be unit, and computer language is with the record such as 1 or 0
Content.Accordingly, it would be desirable to actual brightness value is processed as the average brightness value that computer is capable of identify that.
Embodiment seven
In step 201, when RGBW Display panel pure color picture, white sub-pixels grey decision-making adjustment unit reduce institute
State the intensity gray scale value of white sub-pixels in RGBW panel；And notify that described detecting unit is by detecting current pure color picture subsequently
In the brightness of each frame pixel obtain current brightness gain values.
In the process, described by white sub-pixels in the white sub-pixels grey decision-making adjustment unit described RGBW panel of reduction
The method of intensity gray scale value comprise the following steps.First, by white sub-pixels grey decision-making adjustment unit by current pure color picture
The brightness value of middle white sub-pixels compares with the white sub-pixels mean flow rate desired value preset, and obtains white sub-pixels bright
The GTG of degree reduces range value.Then, white sub-pixels grey decision-making adjustment unit is according to the GTG of described white sub-pixels brightness
Reduce range value, adjust output electric to backlight voltage or the backlight of the supplying channels of the backlight corresponding to white sub-pixels
Stream, thus reduce the grey decision-making of the brightness of each frame white sub-pixels.
During white sub-pixels grey decision-making adjustment unit works, white sub-pixels grey decision-making adjustment unit foundation
It it is white sub-pixels monochrome information.This detects the process class of the monochrome information of each frame pixel in pure color picture with detecting unit
Seemingly.We can realize above procedure by the detecting of approximation and computational algorithm, which decreases the complexity of programming, computing,
Also reduce programming and the cost of exploitation.Also improve the saturation of pure color picture simultaneously.
Embodiment eight
In step 201, when RGBW Display panel pure color picture, white sub-pixels grey decision-making adjustment unit reduce institute
State the intensity gray scale value of white sub-pixels in RGBW panel；And notify that described detecting unit is by detecting current pure color picture subsequently
In the brightness of each frame pixel obtain current brightness gain values；
In the process, described by white sub-pixels in the white sub-pixels grey decision-making adjustment unit described RGBW panel of reduction
Intensity gray scale value, comprise the following steps.
First, white sub-pixels mean flow rate theoretical value is generated according to the design architecture preset；And white sub-pixels is put down
All brightness theoretical values are as white sub-pixels mean flow rate desired value.
Then, white sub-pixels grey decision-making adjustment unit by the brightness value of white sub-pixels in current pure color picture and is preset
White sub-pixels mean flow rate desired value compare, obtain white sub-pixels brightness GTG reduce range value.Then, in vain
Sub-pixels grey decision-making adjustment unit reduces range value according to the GTG of described white sub-pixels brightness, adjusts output to correspondence
In the backlight voltage of supplying channels of backlight or the back facet current of white sub-pixels, thus reduce each frame white sub-pixels
The grey decision-making of brightness.
Owing to white sub-pixels mean flow rate desired value is based on the white sub-pixels mean flow rate reason that design architecture generates
Opinion value, so white sub-pixels mean flow rate desired value is to be relatively fixed and accurately.Even if for different RGBW panels, no
There will be the situation that white sub-pixels grey decision-making adjustment unit cannot work；Also will not increase too much because of different RGBW panels
Amount of calculation.Compatibility of the present invention is good, portable strong.
Embodiment nine
In step 201, when RGBW Display panel pure color picture, white sub-pixels grey decision-making adjustment unit reduce institute
State the intensity gray scale value of white sub-pixels in RGBW panel；And notify that described detecting unit is by detecting current pure color picture subsequently
In the brightness of each frame pixel obtain current brightness gain values；
In the process, described by white sub-pixels in the white sub-pixels grey decision-making adjustment unit described RGBW panel of reduction
The method of intensity gray scale value comprise the following steps.First, by white sub-pixels grey decision-making adjustment unit by current pure color picture
Saturation with preset saturation desired value compare, obtain the value added of the saturation of current pure color picture.Then, in vain
Sub-pixels grey decision-making adjustment unit is according to the value added of the saturation of described current pure color picture and white sub-pixels brightness
GTG decreasing value relation reduces the grey decision-making of the brightness of white sub-pixels.
During white sub-pixels grey decision-making adjustment unit works, white sub-pixels grey decision-making adjustment unit foundation
It it is pure color picture saturation infromation；For different RGBW panels, although be likely to require and re-establish the increasing of pure color picture saturation
The value added relation with white sub-pixels intensity gray scale decreasing value, but said method specific aim is higher, pure color picture saturation effect
Fruit is more preferably.
Embodiment ten
Before carrying out step 201, by the way of test experiment, set up value added and the white of the saturation of pure color picture
The vision relation of sub-pixel luminence GTG decreasing value.
In step 201, when RGBW Display panel pure color picture, white sub-pixels grey decision-making adjustment unit reduce institute
State the intensity gray scale value of white sub-pixels in RGBW panel；And notify that described detecting unit is by detecting current pure color picture subsequently
In the brightness of each frame pixel obtain current brightness gain values.
In the process, described by white sub-pixels in the white sub-pixels grey decision-making adjustment unit described RGBW panel of reduction
The method of intensity gray scale value comprise the following steps.First, by white sub-pixels grey decision-making adjustment unit by current pure color picture
Saturation with preset saturation desired value compare, the value added of the saturation obtaining current pure color picture is.Then,
White sub-pixels grey decision-making adjustment unit is according to the value added of the saturation of described current pure color picture and white sub-pixels brightness
GTG decreasing value relation reduce the grey decision-making of brightness of white sub-pixels.
For different RGBW panels, by the way of test experiment, set up the value added of saturation of pure color picture with white
The vision relation of sub-pixels intensity gray scale decreasing value can preferably embody the pure color picture saturation of RGBW panel self.
Although herein with reference to specific embodiment, the present invention is described it should be understood that, these are real
Execute the example that example is only principles and applications.It should therefore be understood that exemplary embodiment can be carried out
Many amendments, and can be designed that other layout, without departing from the spirit of the present invention that claims are limited
And scope.It should be understood that and can combine different appurtenances by being different from original claim manner described
Profit requires and feature specifically described herein.Will also be appreciated that combining the feature described by independent embodiment can use
In other described embodiments.
Claims (10)
1. the system of the pure color picture brightness adjusting RGBW panel, it is characterised in that including:
Detecting unit, is set to, when described RGBW Display panel pure color picture, detect each frame pixel in described pure color picture
Brightness；Then according to detecting the average brightness value of pure color picture described in the brightness calculation of each frame pixel；And by described flat
All brightness values compare with the mean flow rate desired value preset, and obtain brightness gain values；
Computing unit, is set to according to described brightness gain values calculating current yield value；
Backlight driving unit, is set to adjust the output backlight electricity to the supplying channels of backlight according to described current gain
Pressure or back facet current, thus increase the brightness of each frame pixel.
System the most according to claim 1, it is characterised in that also including white sub-pixels grey decision-making adjustment unit, it sets
It is set to reduce the grey decision-making of the brightness of white sub-pixels in described RGBW panel；And notify that described detecting unit is by detecting subsequently
In current pure color picture, the brightness of each frame pixel obtains current brightness gain values.
3. the method for the pure color picture brightness adjusting RGBW panel, it is characterised in that including:
By detecting unit when described RGBW Display panel pure color picture, detect the bright of each frame pixel in described pure color picture
Degree；Then, by detecting unit according to detecting the average brightness value of pure color picture described in the brightness calculation of each frame pixel；Detecting
Described average brightness value is also compared by unit with the mean flow rate desired value preset, and obtains brightness gain values；
By computing unit according to described brightness gain values calculating current yield value；
By backlight driving unit according to described current gain adjust export to backlight supplying channels backlight voltage or
Person's back facet current, thus increase the brightness of each frame pixel.
Method the most according to claim 3, it is characterised in that also include:
The intensity gray scale value of white sub-pixels in described RGBW panel is reduced by white sub-pixels grey decision-making adjustment unit；And subsequently
Notify that described detecting unit obtains current brightness gain values by detecting the brightness of each frame pixel in current pure color picture.
Method the most according to claim 4, it is characterised in that described mean flow rate desired value is based on the designed holder preset
Structure and the mean flow rate theoretical value that generates.
Method the most according to claim 5, it is characterised in that described basis detects the brightness calculation institute of each frame pixel
State the average brightness value of pure color picture, including: it is that computer is capable of identify that by the brightness processed of each frame pixel detected
The average brightness value that machine word calls the turn.
7. according to the method according to any one of claim 4 to 6, it is characterised in that described adjusted by white sub-pixels grey decision-making
Whole unit reduces the intensity gray scale value of white sub-pixels in described RGBW panel, including:
By white sub-pixels grey decision-making adjustment unit by the brightness value of white sub-pixels in current pure color picture and the white preset
Sub-pixel mean flow rate desired value compares, and the GTG obtaining white sub-pixels brightness reduces range value；
Reduced range value by described white sub-pixels grey decision-making adjustment unit according to the GTG of described white sub-pixels brightness, adjust
Whole output is to the backlight voltage of the supplying channels of the backlight corresponding to white sub-pixels or back facet current, thus reduces each
The grey decision-making of the brightness of frame white sub-pixels.
Method the most according to claim 7, it is characterised in that described white sub-pixels mean flow rate desired value is based on pre-
If design architecture and the white sub-pixels mean flow rate theoretical value that generates.
9. according to the method according to any one of claim 4 to 6, it is characterised in that described adjusted by white sub-pixels grey decision-making
Whole unit reduces the intensity gray scale value of white sub-pixels in described RGBW panel, including:
By white sub-pixels grey decision-making adjustment unit, the saturation of current pure color picture is carried out with the saturation desired value preset
Relatively, the value added of the saturation of current pure color picture is obtained；White sub-pixels grey decision-making adjustment unit is according to described the purest
The GTG decreasing value relation of the value added of the saturation of color picture and white sub-pixels brightness reduces the brightness of white sub-pixels
Grey decision-making.
Method the most according to claim 9, it is characterised in that also include:
By the way of test experiment, set up value added and the white sub-pixels intensity gray scale decreasing value of the saturation of pure color picture
Vision relation.
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