CN106875914B - A kind of driving method and liquid crystal display of the gelatinization of LCD brightness dynamic analog - Google Patents
A kind of driving method and liquid crystal display of the gelatinization of LCD brightness dynamic analog Download PDFInfo
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- CN106875914B CN106875914B CN201710266584.0A CN201710266584A CN106875914B CN 106875914 B CN106875914 B CN 106875914B CN 201710266584 A CN201710266584 A CN 201710266584A CN 106875914 B CN106875914 B CN 106875914B
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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
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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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Abstract
The embodiment of the invention discloses a kind of driving methods of LCD brightness dynamic analog gelatinization, comprising: obtains the next frame image information that adjustment region will be switched to；It analyzes red sub-pixel in the next frame image information, green sub-pixels, blue subpixels and accounts for leading situation；Judge that the green sub-pixels account for the accounting of leading situation and whether are greater than or equal to red sub-pixel and blue subpixels account for the sum of the accounting of leading situation；If so, backlight illumination is shown with the adjusting of the first brightness order to object brightness with carrying out next frame picture；If it is not, then backlight illumination is shown with the adjusting of the second brightness order to sight brightness with carrying out next frame picture, wherein the first brightness order is greater than the second brightness order.The embodiment of the invention also discloses a kind of liquid crystal displays.Using the present invention, brightness change can be improved by, which having the advantages that, is not suitable with to human eye bring and reduces power consumption.
Description
Technical field
The invention belongs to field of display technology, in particular, being related to a kind of drive of LCD brightness dynamic analog gelatinization
Dynamic method and liquid crystal display.
Background technique
With the development of liquid crystal display (LCD, Liquid Crystal Display), people are not only to LCD panel ruler
Very little demand is increasing, and the resolution requirement of display is higher and higher, and requires also increasingly the clarity of LCD panel
The picture quality requirement of height, LCD is also higher and higher, also lower and lower to the power consumption requirements of backlight；In order to meet people to picture
High-quality, low-power consumption pursuit, how to reduce the power consumption of backlight most by the concern of height.Disappear because backlight is the largest energy
Consumption person, reduces the power consumption of backlight, is also greatly lowered the power consumption of complete machine.Currently, be added in liquid crystal display panel driving chip
CABC (Content Adaptive Brightness Control, content-adaptive backlight control techniques) function, can be effective
Reduce backlight power consumption.
The CABC function of reducing backlight power consumption being added in available liquid crystal panel driving chip, to prevent the unexpected of brightness
Change brought to human eye it is inadaptable, and use Dimming (blurring) function, i.e., within a certain period of time adjusting backlight PWM
(plus-width modulation, pulsewidth modulation) signal, finally to realize that backlight illumination gradually uniformly changes to
The brightness value reached.If Fig. 1 is brightness change of the prior art without Diming function and with Diming function, there is Diming function
The brightness change of energy uses multistage progress backlight switching control after generally setting, and such mode can change with respect to no Diming function
Kind brightness change is inadaptable to human eye bring, still, causes power consumption unrestrained under the picture that some brightness do not need multistage switching
Take.
Summary of the invention
The technical problem to be solved by the embodiment of the invention is that providing a kind of gelatinization of LCD brightness dynamic analog
Driving method and liquid crystal display.Brightness change can be improved to be not suitable with to human eye bring and reduce power consumption.
In order to solve the above-mentioned technical problem, first aspect present invention embodiment provides a kind of LCD brightness dynamic
The driving method of blurring, the liquid crystal display include adjustment region, and the adjustment region includes at least one pixel, described
Pixel includes red sub-pixel, green sub-pixels, blue subpixels, which comprises
Obtain the next frame image information that adjustment region will be switched to；
It analyzes red sub-pixel in the next frame image information, green sub-pixels, blue subpixels and accounts for leading situation；
Judge that the green sub-pixels account for the accounting of leading situation and whether are greater than or equal to red sub-pixel and the sub- picture of blue
Element accounts for the sum of the accounting of leading situation；
If so, backlight illumination is shown with the adjusting of the first brightness order to object brightness with carrying out next frame picture；
If it is not, then backlight illumination is shown with the adjusting of the second brightness order to sight brightness with carrying out next frame picture, wherein
First brightness order is greater than the second brightness order.
In one embodiment of first aspect present invention, the adjustment region includes multiple pixels.
In one embodiment of first aspect present invention, the adjustment region is included in the display area of liquid crystal display.
In one embodiment of first aspect present invention, red sub-pixel in the next frame image information, green are analyzed
Pixel, blue subpixels specifically include the step of accounting for leading situation:
Compare in the next frame image information red sub-pixel in each pixel, green sub-pixels, blue subpixels
Grayscale size；
Count the maximum number of pixels of green sub-pixels grayscale, the maximum number of pixels of red sub-pixel grayscale, blue
The maximum number of pixels of pixel gray level.
In one embodiment of first aspect present invention, the maximum number of pixels of statistics green sub-pixels grayscale, red sub- picture
The step of maximum number of pixels of plain grayscale, blue subpixels grayscale maximum number of pixels, specifically includes:
Judge the grayscale of same pixel Green sub-pixel whether be greater than or equal to the grayscale of red sub-pixel and be greater than or
Equal to the grayscale of blue subpixels；
If so, the maximum number of pixels statistics of green sub-pixels grayscale increases by 1；
If it is not, then the sum of the maximum number of pixels of red sub-pixel grayscale and the maximum number of pixels of blue subpixels grayscale
Increase by 1.
In one embodiment of first aspect present invention, the number of the first brightness order is 4-8, second luminance step
Several numbers is 1-5.
Brightness change phase in one embodiment of first aspect present invention, in the first brightness order in the unit time
Together, the brightness change in the second brightness order in the unit time is identical.
First aspect present invention embodiment provides a kind of liquid crystal display, and the liquid crystal display includes adjustment region,
The adjustment region includes at least one pixel, and the pixel includes red sub-pixel, green sub-pixels, blue subpixels, is gone back
Include:
Acquiring unit is used to obtain the next frame image information that adjustment region will be switched to；
Analytical unit is used to analyze red sub-pixel in the next frame image information, green sub-pixels, the sub- picture of blue
Element accounts for leading situation；
Judging unit is used to judge that the green sub-pixels to account for the accounting of leading situation and whether are greater than or equal to red son
Pixel and blue subpixels account for the sum of the accounting of leading situation；
Processing unit, if the judging result for being used for judging unit be it is yes, backlight illumination is adjusted with the first brightness order
Shown to object brightness with carrying out next frame picture, if the judging result of judging unit be it is no, backlight illumination is with the second brightness
Order adjusting is shown to sight brightness with carrying out next frame picture, wherein the first brightness order is greater than the second brightness order.
In one embodiment of second aspect of the present invention, the analytical unit includes:
Comparing unit is used in next frame image information described in comparison red sub-pixel in each pixel, the sub- picture of green
The grayscale size of element, blue subpixels；
It is maximum to be used to count the maximum number of pixels of green sub-pixels grayscale, red sub-pixel grayscale for statistic unit
Number of pixels, the maximum number of pixels of blue subpixels grayscale.
In one embodiment of second aspect of the present invention, the statistic unit is specifically used for:
Judge the grayscale of same pixel Green sub-pixel whether be greater than or equal to the grayscale of red sub-pixel and be greater than or
Equal to the grayscale of blue subpixels；
If so, the maximum number of pixels statistics of green sub-pixels grayscale increases by 1；
If it is not, then the sum of the maximum number of pixels of red sub-pixel grayscale and the maximum number of pixels of blue subpixels grayscale
Increase by 1.
The implementation of the embodiments of the present invention has the following beneficial effects:
When next frame picture is that the more sensitive green sub-pixels of human eye account for the accounting of leading situation more than or equal to red
When sub-pixel and blue subpixels account for the sum of the accounting of leading situation, inadaptable, back is brought in order to reduce brightness change to human eye
Brightness is adjusted with being greater than the first brightness order of the second brightness order to object brightness, and the amplitude of each brightness change is all at this time
Less, thus brightness change will not be brought to human eye it is inadaptable；When next frame picture is the less sensitive red sub-pixel of human eye
Accounted for blue subpixels the sum of accounting of leading situation greater than green sub-pixels account for the accounting of leading situation when, even if brightness at this time
Change greatly, will not be brought to human eye it is inadaptable, backlight illumination with less than the first brightness order the second brightness order adjust
To object brightness, the switching frequency of backlight illumination can be reduced, so that power consumption is reduced, to be beneficial to energy conservation.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is brightness change figure of the prior art without Dimming function and the brightness change figure for opening Diming function；
Fig. 2 is the flow chart of the driving method of one embodiment of the invention LCD brightness dynamic analog gelatinization；
Fig. 3 is one embodiment of the invention backlight illumination with the brightness change figure of the first brightness order adjusting to object brightness
(right part of flg) and the brightness change figure (left hand view) to object brightness is adjusted with the second brightness order；
Fig. 4 is the composition schematic diagram of one embodiment of the invention liquid crystal display.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The term " includes " and " having " and their any changes occurred in present specification, claims and attached drawing
Shape, it is intended that cover and non-exclusive include.Such as contain the process, method of a series of steps or units, system, product or
Equipment is not limited to listed step or unit, but optionally further comprising the step of not listing or unit or optional
Ground further includes the other step or units intrinsic for these process, methods, product or equipment.In addition, term " first ", " the
Two " and " third " etc. are and to be not intended to describe specific sequence for distinguishing different objects.
The embodiment of the present invention provides a kind of driving method of LCD brightness dynamic analog gelatinization, the LCD display
Plate includes display area and non-display area, and the display area of the liquid crystal display includes adjustment region, and a kind of situation is institute
The area for stating adjustment region is less than the area (in the present embodiment) of the display area namely the adjustment region is the display
A zonule in region, another situation are that the adjustment region can also be entire display area namely the adjusting
The area in region is equal to the area of the display area.The adjustment region includes at least one pixel, for example including a picture
Element, two pixels, three pixels, six pixels, ten pixels, 20 pixels etc., in the present embodiment, the adjustment region
Including multiple pixels, each pixel includes red sub-pixel (R), green sub-pixels (G), blue subpixels (B).In the present embodiment
In, Fig. 2 and Fig. 3 are referred to, the driving method includes:
S110: the next frame image information that adjustment region will be switched to is obtained；
In the present embodiment, liquid crystal display obtains next frame (frame) image information that adjustment region will be switched to,
Particularly, liquid crystal display is the luminance information for obtaining the next frame picture of all pixels in adjustment region, here bright
Degree information refers to the luminance information after CABC function point analysis, such as obtains the grayscale of red sub-pixel in some pixel, green
Grayscale, the grayscale of blue subpixels of sub-pixels.
S120: analyze red sub-pixel in the next frame image information, green sub-pixels, blue subpixels account for it is leading
Situation；
In the present embodiment, according to the next frame image information of acquisition, liquid crystal display analyzes the next frame image information
Middle red sub-pixel, green sub-pixels, blue subpixels account for leading situation, in this present embodiment, it is indicated which sub-pixel accounts for
Leading situation refers to the grayscale highest of the sub-pixel in the pixel where the sub-pixel, for example, in some pixel, red sub-pixel
Grayscale be 100, the grayscale 200 of green sub-pixels, the grayscale of blue subpixels is 50, then in this case, the sub- picture of green
Element accounts for leading in the pixel.Certainly, in the present embodiment, when the grayscale of two sub-pixels in one pixel is identical, this two
The grayscale of a sub-pixel (one of sub-pixel is green sub-pixels) is both greater than the grayscale of third sub-pixel, such situation
Under, the present embodiment regulation accounts for leading situation in the pixel for green sub-pixels, design in this way be in order to improve brightness change to
Human eye bring is inadaptable, in other embodiments of the invention can also be by non-green sub-pixel of course for the energy is saved
It is defined as accounting for leading situation.In addition, in other embodiments of the invention, it is leading to provide which sub-pixel accounts in one pixel
Situation can also be by other known mode, such as by way of brightness domain, but such mode calculates opposite grayscale side
Formula is complicated, such mode can also obtain which kind of color of next frame picture in adjustment region account for it is leading.
S130: judge that the green sub-pixels account for the accounting of leading situation and whether are greater than or equal to red sub-pixel and blue
Sub-pixel accounts for the sum of the accounting of leading situation；
In the present embodiment, since human eye is relatively high to Green brightness susceptibility, and it is opposite to red luma, blue luminences
Susceptibility is lower, and by the analysis of S120 step, it is leading that liquid crystal display judges that the green sub-pixels account for based on the analysis results
Whether the accounting of situation is greater than red sub-pixel and blue subpixels account for the sum of the accounting of leading situation, such as in adjustment region
In next frame information, the accounting that green sub-pixels account for leading situation is 60%, and the accounting that red sub-pixel accounts for leading situation is
15%, the accounting that blue subpixels account for leading situation is 25%, at this point, liquid crystal display judges that green sub-pixels account for leading situation
Accounting 60% be greater than red sub-pixel and blue subpixels and account for the sum of accounting of leading situation 40%.
S141: if so, backlight illumination is shown with the adjusting of the first brightness order to object brightness with carrying out next frame picture；
In the present embodiment, if the accounting that the green sub-pixels account for leading situation is greater than or equal to red sub-pixel and indigo plant
Sub-pixels account for the sum of the accounting of leading situation, at this point, color is greener in the next frame picture display of the adjustment region
Color, since human eye is more sensitive to Green brightness, thus when from present frame screen switching to next frame picture, if in the unit time
Brightness change is larger, and such variation will bring inadaptable to human eye, and this inadaptable in order to reduce, the backlight illumination is with the
One brightness order is adjusted to object brightness, and here, the first brightness order, which refers to from current picture, is switched to target picture brightness
Change the first brightness order, such as the number of the first brightness order is 4-8, for example, 4,5,6,7,8, in the present embodiment,
The brightness number of the first brightness order is 6, refers to figure shown in the right side Fig. 3.Here, due to the first brightness order
Number is more, has changed 6 times to be switched to object brightness from present intensity, and the amplitude of each brightness change is all little, even if
Human eye is more sensitive to green, and each variation will not bring inadaptable to human eye.
S142: if it is not, then backlight illumination is shown with the adjusting of the second brightness order to sight brightness with carrying out next frame picture,
Wherein, the first brightness order is greater than the second brightness order.
In the present embodiment, if the accounting that the green sub-pixels account for leading situation is less than red sub-pixel and the sub- picture of blue
Element accounts for the sum of the accounting of leading situation, at this point, in the next frame picture display of the adjustment region, color it is more red or
Blue, since human eye is less sensitive to red or blue luminences, thus when from present frame screen switching to next frame picture, even if
Brightness change is larger in unit time, such variation will not be brought to human eye it is inadaptable, meanwhile, in order to reduce backlight illumination
Switching frequency, to reduce power consumption, to save the energy, in the present embodiment, the backlight illumination is adjusted with the second brightness order
It is shown to object brightness with carrying out next frame picture, here, the second brightness order refers to that being switched to target from current picture draws
The second brightness order of face brightness change, such as the number of the second brightness order is 1-5, for example, 1,2,3,4,5, in this implementation
In example, the brightness number of the second brightness order is 3, refers to figure shown in the left side Fig. 3.Here, due to the second brightness
Order is switched to object brightness from present intensity and has changed 3 times less than the first brightness order, the Amplitude Ratio of each brightness change
Amplitude of variation in one brightness order is big, so that the switching frequency of backlight illumination is reduced, to reduce power consumption.
In the present embodiment, when next frame picture be the more sensitive green sub-pixels of human eye account for leading situation accounting it is big
When red sub-pixel and blue subpixels account for the sum of the accounting of leading situation, human eye band is given in order to reduce brightness change
It is not suitable with, backlight illumination is adjusted with the first brightness order for being greater than the second brightness order to object brightness, at this time each brightness
The amplitude of variation is all little, thus brightness change will not be brought to human eye it is inadaptable；When next frame picture is that human eye is less sensitive
Red sub-pixel and blue subpixels account for the sum of accounting of leading situation greater than green sub-pixels account for the accounting of leading situation when,
It even if brightness change is larger at this time, will not be brought to human eye inadaptable, backlight illumination is with second less than the first brightness order
Brightness order is adjusted to object brightness, the switching frequency of backlight illumination can be reduced, so that power consumption is reduced, to be conducive to save
Energy.
In the present embodiment, step S120 is specifically included:
S121: red sub-pixel in each pixel, green sub-pixels, the sub- picture of blue in the next frame image information
The grayscale size of element；
In the present embodiment, the adjustment region includes multiple pixels, based on next frame image information is obtained, to show
Panel can obtain in next frame picture red sub-pixel, green sub-pixels, the grayscale size of blue subpixels in each pixel,
Such as in a wherein pixel, the grayscale of red sub-pixel is 100, and the grayscale of green sub-pixels is 200, blue subpixels
Grayscale is 50, compares the grayscale size of each sub-pixel in the pixel, and in this example, 200 > of grayscale of green sub-pixels is red
The grayscale 50 of the 100 > blue subpixels of grayscale of sub-pixel.
S122: the maximum number of pixels of statistics green sub-pixels grayscale, the maximum number of pixels of red sub-pixel grayscale, indigo plant
The maximum number of pixels of sub-pixels grayscale.
In the present embodiment, grayscale maximum is directed to the grayscale maximum of which sub-pixel in a pixel, in above-mentioned example
In son, the grayscale 200 of green sub-pixels is maximum in the pixel.Count each maximum pixel of sub-pixel grayscale in the adjustment region
The number of pixel is 20 in number, such as the adjustment region, and the statistics maximum number of pixels of green sub-pixels grayscale is 12,
The maximum number of pixels of red sub-pixel grayscale is 6, and the maximum number of pixels of blue subpixels grayscale is 2.Here, when
When the grayscale of one pixel Green sub-pixel is identical as the grayscale of other two sub-pixels, and both greater than remaining sub-pixel
When grayscale, at this time in order to reduce the inadaptable of human eye, it is designed as the grayscale in the pixel Green sub-pixel in the pixel most
Greatly.
In the present embodiment, step S122 is specific further include:
Judge the grayscale of same pixel Green sub-pixel whether be greater than or equal to the grayscale of red sub-pixel and be greater than or
Equal to the grayscale of blue subpixels；
In the present embodiment, red sub-pixel in each pixel based on acquisition, green sub-pixels, blue subpixels ash
Rank size, liquid crystal display judge whether the grayscale of same pixel Green sub-pixel is greater than or equal to the grayscale of red sub-pixel
And it is greater than or equal to the grayscale of blue subpixels, in the above example, the 200 > red sub-pixel of grayscale of green sub-pixels
The grayscale 50 of 100 > blue subpixels of grayscale.
If so, the maximum number of pixels statistics of green sub-pixels grayscale increases by 1；
In this example, it is assumed that when liquid crystal display counts on previous pixel, the maximum picture of green sub-pixels grayscale
Prime number mesh is a, and the maximum number of pixels of red sub-pixel grayscale is b, and the maximum number of pixels of blue subpixels grayscale is c, when
The grayscale of preceding pixel Green sub-pixel is greater than or equal to the grayscale of red sub-pixel and is greater than or equal to the ash of blue subpixels
Rank, the maximum number of pixels of green sub-pixels grayscale increases by 1 at this time, also as a+1, the maximum pixel number of red sub-pixel grayscale
Mesh and the maximum number of pixels of blue subpixels grayscale are constant.
If it is not, then the sum of the maximum number of pixels of red sub-pixel grayscale and the maximum number of pixels of blue subpixels grayscale
Increase by 1.
In this example, it is assumed that the maximum number of pixels of green sub-pixels grayscale is a when counting on previous pixel,
The maximum number of pixels of red sub-pixel grayscale is b, and the maximum number of pixels of blue subpixels grayscale is c, red in current pixel
When the grayscale of sub-pixels is maximum, the maximum number of pixels of red sub-pixel grayscale increases by 1 at this time, also as b+1, green
The maximum number of pixels of pixel gray level and the maximum number of pixels of blue subpixels grayscale are constant；Blue subpixels in current pixel
Grayscale when being maximum, the maximum number of pixels of blue subpixels grayscale increases by 1 at this time, also as c+1, green sub-pixels grayscale
Maximum number of pixels and the maximum number of pixels of red sub-pixel grayscale are constant.
In this manner, green sub-pixels grayscale maximum pixel when obtaining adjustment region next frame picture can be counted
Number, the maximum number of pixels of red sub-pixel grayscale, the maximum number of pixels of blue subpixels grayscale.It is green after "as if" statistics
The maximum number of pixels of sub-pixel grayscale is A, and the maximum number of pixels of red sub-pixel grayscale is B, and blue subpixels grayscale is most
Big number of pixels is C, then the accounting that green sub-pixels account for leading situation is A/ (A+B+C), then red sub-pixel accounts for leading feelings
The accounting of condition is B/ (A+B+C), then it is C/ (A+B+C), red sub-pixel and blue that blue subpixels, which account for the accounting of leading situation,
It is (B+C)/(A+B+C) that sub-pixel, which accounts for the sum of accounting of leading situation,.
In addition, in the present embodiment, bringing the inadaptable of human eye to weaken brightness change, and reduce backlight illumination
Switching frequency to reduce power consumption, in the first brightness order, the size of each ladder is identical namely 6 ladders in the unit time
The first brightness change be it is identical, the size of each ladder is identical in the second brightness order namely 3 ladders in the unit time
The second interior brightness change is identical, moreover, in the present embodiment, first brightness change is less than the second brightness change.
The embodiment of the invention also provides a kind of liquid crystal display, the liquid crystal display includes adjustment region, the tune
Saving region includes at least one pixel, and the pixel includes red sub-pixel, green sub-pixels, blue subpixels, refers to figure
4, the liquid crystal display further include:
Acquiring unit 110 is used to obtain the next frame image information that adjustment region will be switched to；
Analytical unit 120 is used to analyze red sub-pixel, green sub-pixels, blue in the next frame image information
Sub-pixel accounts for leading situation；
Judging unit 130, be used to judge the green sub-pixels account for leading situation accounting whether be greater than or equal to it is red
Sub-pixels and blue subpixels account for the sum of the accounting of leading situation；
Processing unit 140, if the judging result for being used for judging unit 130 be it is yes, backlight illumination is with the first luminance step
Number adjust shown to object brightness with carrying out next frame picture, if the judging result of judging unit 130 be it is no, backlight illumination with
The adjusting of second brightness order is shown to sight brightness with carrying out next frame picture, wherein the first brightness order is greater than the second brightness
Order.
In the present embodiment, the analytical unit specifically includes:
Comparing unit 121 is used in next frame image information described in comparison red sub-pixel in each pixel, green
Pixel, the grayscale size of blue subpixels；
It is maximum to be used to count the maximum number of pixels of green sub-pixels grayscale, red sub-pixel grayscale for statistic unit 122
Number of pixels, the maximum number of pixels of blue subpixels grayscale.
In the present embodiment, the statistic unit is specifically used for:
Judge the grayscale of same pixel Green sub-pixel whether be greater than or equal to the grayscale of red sub-pixel and be greater than or
Equal to the grayscale of blue subpixels；
If so, the maximum number of pixels statistics of green sub-pixels grayscale increases by 1；
If it is not, then the sum of the maximum number of pixels of red sub-pixel grayscale and the maximum number of pixels of blue subpixels grayscale
Increase by 1.
It should be noted that all the embodiments in this specification are described in a progressive manner, each embodiment weight
Point explanation is all differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.
For device embodiment, since it is basically similar to the method embodiment, so being described relatively simple, related place referring to
The part of embodiment of the method illustrates.
Description through the foregoing embodiment, the invention has the following advantages that
When next frame picture is that the more sensitive green sub-pixels of human eye account for the accounting of leading situation more than or equal to red
When sub-pixel and blue subpixels account for the sum of the accounting of leading situation, inadaptable, back is brought in order to reduce brightness change to human eye
Brightness is adjusted with being greater than the first brightness order of the second brightness order to object brightness, and the amplitude of each brightness change is all at this time
Less, thus brightness change will not be brought to human eye it is inadaptable；When next frame picture is the less sensitive red sub-pixel of human eye
Accounted for blue subpixels the sum of accounting of leading situation greater than green sub-pixels account for the accounting of leading situation when, even if brightness at this time
Change greatly, will not be brought to human eye it is inadaptable, backlight illumination with less than the first brightness order the second brightness order adjust
To object brightness, the switching frequency of backlight illumination can be reduced, so that power consumption is reduced, to be beneficial to energy conservation.
The above disclosure is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly
It encloses, therefore equivalent changes made in accordance with the claims of the present invention, is still within the scope of the present invention.
Claims (10)
1. a kind of driving method of LCD brightness dynamic analog gelatinization, the liquid crystal display includes adjustment region, described
Adjustment region includes at least one pixel, and the pixel includes red sub-pixel, green sub-pixels, blue subpixels, feature
It is, the driving method includes:
Obtain the next frame image information that adjustment region will be switched to；
It analyzes red sub-pixel in the next frame image information, green sub-pixels, blue subpixels and accounts for leading situation；
Judge that the green sub-pixels account for the accounting of leading situation and whether are greater than or equal to red sub-pixel and blue subpixels account for
The sum of the accounting of leading situation；
If so, backlight illumination is shown with the adjusting of the first brightness order to object brightness with carrying out next frame picture；
If it is not, then backlight illumination is shown with the adjusting of the second brightness order to object brightness with carrying out next frame picture, wherein first
Brightness order is greater than the second brightness order.
2. the driving method of LCD brightness dynamic analog gelatinization as described in claim 1, which is characterized in that the adjusting
Region includes multiple pixels.
3. the driving method of LCD brightness dynamic analog gelatinization as claimed in claim 2, which is characterized in that the adjusting
Region is included in the display area of liquid crystal display.
4. the driving method of LCD brightness dynamic analog gelatinization as described in claim 1, which is characterized in that described in analysis
Red sub-pixel in next frame image information, green sub-pixels, blue subpixels specifically include the step of accounting for leading situation:
Compare in the next frame image information red sub-pixel, green sub-pixels, the grayscale of blue subpixels in each pixel
Size；
Count the maximum number of pixels of green sub-pixels grayscale, the maximum number of pixels of red sub-pixel grayscale, blue subpixels
The maximum number of pixels of grayscale.
5. the driving method of LCD brightness dynamic analog gelatinization as claimed in claim 4, which is characterized in that statistics green
The maximum number of pixels of sub-pixel grayscale, the maximum number of pixels of red sub-pixel grayscale, the maximum picture of blue subpixels grayscale
Prime number purpose step specifically includes:
Judge whether the grayscale of same pixel Green sub-pixel is greater than or equal to the grayscale of red sub-pixel and is greater than or equal to
The grayscale of blue subpixels；
If so, the maximum number of pixels statistics of green sub-pixels grayscale increases by 1；
If it is not, then the sum of the maximum number of pixels of red sub-pixel grayscale and the maximum number of pixels of blue subpixels grayscale increase
1。
6. the driving method of LCD brightness dynamic analog gelatinization as described in claim 1, which is characterized in that described first
The number of brightness order is 4-8, and the number of the second brightness order is 1-5.
7. the driving method of LCD brightness dynamic analog gelatinization as described in claim 1, which is characterized in that described first
Brightness change in brightness order in the unit time is identical, the brightness change phase in the second brightness order in the unit time
Together.
8. a kind of liquid crystal display, the liquid crystal display includes adjustment region, and the adjustment region includes at least one pixel,
The pixel includes red sub-pixel, green sub-pixels, blue subpixels, which is characterized in that the liquid crystal display further include:
Acquiring unit is used to obtain the next frame image information that adjustment region will be switched to；
Analytical unit is used to analyze red sub-pixel in the next frame image information, green sub-pixels, blue subpixels
Account for leading situation；
Judging unit is used to judge that the green sub-pixels to account for the accounting of leading situation and whether are greater than or equal to red sub-pixel
The sum of the accounting of leading situation is accounted for blue subpixels；
Processing unit, if the judging result for being used for judging unit be it is yes, backlight illumination is adjusted with the first brightness order to mesh
Mark brightness shown with carrying out next frame picture, if the judging result of judging unit be it is no, backlight illumination is with the second brightness order
It adjusts object brightness and is shown with carrying out next frame picture, wherein the first brightness order is greater than the second brightness order.
9. liquid crystal display as claimed in claim 8, which is characterized in that the analytical unit includes:
Comparing unit is used in next frame image information described in comparison red sub-pixel, green sub-pixels, indigo plant in each pixel
The grayscale size of sub-pixels；
Statistic unit is used to count the maximum number of pixels of green sub-pixels grayscale, the maximum pixel of red sub-pixel grayscale
Number, the maximum number of pixels of blue subpixels grayscale.
10. liquid crystal display as claimed in claim 9, which is characterized in that the statistic unit is specifically used for:
Judge whether the grayscale of same pixel Green sub-pixel is greater than or equal to the grayscale of red sub-pixel and is greater than or equal to
The grayscale of blue subpixels；
If so, the maximum number of pixels statistics of green sub-pixels grayscale increases by 1；
If it is not, then the sum of the maximum number of pixels of red sub-pixel grayscale and the maximum number of pixels of blue subpixels grayscale increase
1。
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| CN201710266584.0A CN106875914B (en) | 2017-04-21 | 2017-04-21 | A kind of driving method and liquid crystal display of the gelatinization of LCD brightness dynamic analog |
| PCT/CN2017/083637 WO2018192018A1 (en) | 2017-04-21 | 2017-05-09 | Driving method for dynamic brightness dimming of liquid crystal display, and liquid crystal display |
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| CN201710266584.0A CN106875914B (en) | 2017-04-21 | 2017-04-21 | A kind of driving method and liquid crystal display of the gelatinization of LCD brightness dynamic analog |
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| CN109447988B (en) * | 2018-12-18 | 2020-09-01 | 深圳市华星光电半导体显示技术有限公司 | Method for detecting crosstalk image |
| TWI721375B (en) * | 2019-02-22 | 2021-03-11 | 友達光電股份有限公司 | Timing controller, display device and screen displaying method |
| CN112102787B (en) * | 2019-06-17 | 2023-05-09 | 上海欧菲智能车联科技有限公司 | Backlight brightness control method, equipment, vehicle and storage medium of liquid crystal display screen |
| CN113870805B (en) * | 2021-10-18 | 2022-10-14 | 北京显芯科技有限公司 | Backlight control method, device, system and storage medium |
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| JP4250799B2 (en) * | 1999-03-24 | 2009-04-08 | 三菱電機株式会社 | Display device |
| US7176878B2 (en) * | 2002-12-11 | 2007-02-13 | Nvidia Corporation | Backlight dimming and LCD amplitude boost |
| JP4012118B2 (en) * | 2003-05-19 | 2007-11-21 | キヤノン株式会社 | Image display device |
| CN101686590B (en) * | 2008-09-27 | 2013-01-30 | 比亚迪股份有限公司 | LED dynamic backlight source control algorithm |
| CN102306481B (en) * | 2011-05-19 | 2013-11-20 | 华映光电股份有限公司 | Backlight controller and method for dynamically controlling backlight of liquid crystal display |
| KR101997776B1 (en) * | 2012-10-16 | 2019-07-08 | 삼성전자주식회사 | Method for reducing for consumption power of display unit and an electronic device thereof |
| TWI558262B (en) * | 2015-01-28 | 2016-11-11 | 友達光電股份有限公司 | Light emitting diode driver |
| CN105825834B (en) * | 2015-07-27 | 2018-08-17 | 维沃移动通信有限公司 | Terminal and its back light brightness regulating method |
| CN105959490B (en) * | 2016-06-28 | 2019-08-20 | Oppo广东移动通信有限公司 | Control method, control device and electronic device |
| CN106340278B (en) * | 2016-10-13 | 2019-02-22 | 深圳市华星光电技术有限公司 | A kind of driving method and device of display panel |
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