CN106875914A - 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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- CN106875914A CN106875914A CN201710266584.0A CN201710266584A CN106875914A CN 106875914 A CN106875914 A CN 106875914A CN 201710266584 A CN201710266584 A CN 201710266584A CN 106875914 A CN106875914 A CN 106875914A
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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
Abstract
The embodiment of the invention discloses a kind of driving method of LCD brightness dynamic analog gelatinization, including：Obtain the next frame image information that adjustment region will be switched to；Analyze red sub-pixel in the next frame image information, green sub-pixels, blue subpixels and account for leading situation；Judge that the green sub-pixels account for the accounting of leading situation and whether the accounting sum of leading situation is accounted for more than or equal to red sub-pixel and blue subpixels；If so, then backlight illumination is shown to object brightness with the regulation of the first brightness exponent number with carrying out next frame picture；If it is not, then backlight illumination is shown to sight brightness with the regulation of the second brightness exponent number with carrying out next frame picture, wherein, the first brightness exponent number is more than the second brightness exponent number.The embodiment of the invention also discloses a kind of liquid crystal display.Using the present invention, have the advantages that can improve brightness changes the inadaptable and reduction power consumption brought to human eye.
Description
Technical field
The invention belongs to display technology field, specifically, it is related to a kind of drive of LCD brightness dynamic analog gelatinization
Dynamic method and liquid crystal display.
Background technology
With the development of liquid crystal display (LCD, Liquid Crystal Display), people are not only to LCD chi
Very little demand is increasing, the resolution requirement more and more higher of display, and to the requirement of the definition of LCD also increasingly
Height, the picture quality of LCD requires also more and more higher, and the power consumption requirements to backlight are also more and more lower；In order to meet people to picture
High-quality, the pursuit of low-power consumption, the power consumption for how reducing backlight are most paid close attention to by height.Because backlight is maximum energy disappearing
Consumption person, reduces the power consumption of backlight, is also greatly lowered the power consumption of whole machine.At present, added in liquid crystal panel driving chip
CABC (Content Adaptive Brightness Control, content-adaptive backlight control techniques) function, can be effective
Reduce backlight power consumption.
The CABC functions of the reduced backlight power consumption added in available liquid crystal panel driving chip, to prevent the unexpected of brightness
Change and bring inadaptable to human eye, and use Dimming (obfuscation) function, i.e., adjust backlight PWM within a certain period of time
(plus-width modulation, pulsewidth modulation) signal, is finally gradually uniformly changed to realizing backlight illumination
The brightness value for reaching.If Fig. 1 is brightness change of the prior art without Diming functions and with Diming functions, with Diming work(
Backlight switching control is carried out using multistage after the general setting of brightness change of energy, this kind of mode can change without Diming functions relatively
Kind brightness changes to being not suitable with that human eye brings, but, power consumption wave is caused in the case where some brightness do not need the picture of multistage switching
Take.
The content of the invention
Embodiment of the present invention technical problem to be solved is, there is provided a kind of LCD brightness dynamic analog gelatinization
Driving method and liquid crystal display.Brightness can be improved and change the inadaptable and reduction power consumption brought to human eye.
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 obfuscation, the liquid crystal display includes adjustment region, and the adjustment region includes at least one pixel, described
Pixel includes red sub-pixel, green sub-pixels, blue subpixels, and methods described includes：
Obtain the next frame image information that adjustment region will be switched to；
Analyze red sub-pixel in the next frame image information, green sub-pixels, blue subpixels and account for leading situation；
Judge that whether the green sub-pixels account for the accounting of leading situation more than or equal to red sub-pixel and blue sub- picture
Element accounts for the accounting sum of leading situation；
If so, then backlight illumination is shown to object brightness with the regulation of the first brightness exponent number with carrying out next frame picture；
If it is not, then backlight illumination is shown to sight brightness with the regulation of the second brightness exponent number with carrying out next frame picture, wherein,
First brightness exponent number is more than the second brightness exponent number.
In the embodiment of first aspect present invention one, the adjustment region includes multiple pixels.
In the embodiment of first aspect present invention one, the adjustment region is included in the viewing area of liquid crystal display.
In the embodiment of first aspect present invention one, red sub-pixel, green in the next frame image information are analyzed
Pixel, blue subpixels are specifically included 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
GTG size；
The maximum number of pixels of the maximum number of pixels of statistics green sub-pixels GTG, red sub-pixel GTG, blue son
The maximum number of pixels of pixel gray level.
In the embodiment of first aspect present invention one, statistics green sub-pixels GTG maximum number of pixels, red sub- picture
The step of maximum number of pixels of plain GTG, number of pixels of blue subpixels GTG maximum, specifically includes：
Judge same pixel Green sub-pixel GTG whether more than or equal to red sub-pixel GTG and more than or
Equal to the GTG of blue subpixels；
If so, then the maximum number of pixels statistics of green sub-pixels GTG increases by 1；
If it is not, the then maximum number of pixels of red sub-pixel GTG and the maximum number of pixels sum of blue subpixels GTG
Increase by 1.
In the embodiment of first aspect present invention one, the number of the first brightness exponent number is 4-8, second luminance step
Several numbers is 1-5.
In the embodiment of first aspect present invention one, the brightness change phase in the first brightness exponent number in the unit interval
Together, the brightness change in the second brightness exponent number in the unit interval 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, also
Including：
Acquiring unit, it is used to obtain the next frame image information that adjustment region will be switched to；
Analytic unit, it is used to analyze red sub-pixel, green sub-pixels, blue sub- picture in the next frame image information
Plain accounts for leading situation；
Judging unit, it is used to judge that whether the green sub-pixels account for the accounting of leading situation more than or equal to red son
Pixel and blue subpixels account for the accounting sum of leading situation；
Processing unit, if its judged result for being used for judging unit is yes, backlight illumination is adjusted with the first brightness exponent number
Shown with carrying out next frame picture to object brightness, if the judged result of judging unit is no, backlight illumination is with the second brightness
Exponent number is adjusted and shown with carrying out next frame picture to sight brightness, wherein, the first brightness exponent number is more than the second brightness exponent number.
In the embodiment of second aspect present invention one, the analytic unit includes：
Comparing unit, it is used in next frame image information described in comparing red sub-pixel in each pixel, green sub- picture
Element, the GTG size of blue subpixels；
Statistic unit, it is maximum that it is used to counting the maximum number of pixels of green sub-pixels GTG, red sub-pixel GTG
The maximum number of pixels of number of pixels, blue subpixels GTG.
In the embodiment of second aspect present invention one, the statistic unit specifically for：
Judge same pixel Green sub-pixel GTG whether more than or equal to red sub-pixel GTG and more than or
Equal to the GTG of blue subpixels；
If so, then the maximum number of pixels statistics of green sub-pixels GTG increases by 1；
If it is not, the then maximum number of pixels of red sub-pixel GTG and the maximum number of pixels sum of blue subpixels GTG
Increase by 1.
Implement the embodiment of the present invention, have the 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 accounting sum of leading situation, change to reduce brightness and bring inadaptable to human eye, carry on the back
, with the first brightness exponent number regulation more than the second brightness exponent number to object brightness, the amplitude that now each brightness changes is all for brightness
Less, so that brightness change will not bring inadaptable to human eye；When next frame picture is the less sensitive red sub-pixel of human eye
When the accounting sum for accounting for leading situation with blue subpixels accounts for the accounting of leading situation more than green sub-pixels, even if now brightness
Change greatly, also will not bring inadaptable to human eye, backlight illumination is adjusted with the second brightness exponent number less than the first brightness exponent number
To object brightness, the switching frequency of backlight illumination can be reduced, so as to reduce power consumption, so as to be conducive to energy-conservation.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is brightness variation diagram of the prior art without Dimming functions and the brightness variation diagram for opening Diming functions；
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 variation diagram of the first brightness exponent number regulation to object brightness
(right part of flg) and the brightness variation diagram (left hand view) with the second brightness exponent number regulation to object brightness；
Fig. 4 is the composition schematic diagram of one embodiment of the invention liquid crystal display.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
The term " comprising " and " having " occurred in present specification, claims and accompanying drawing and their any changes
Shape, it is intended that covering is non-exclusive to be included.For example contain the process of series of steps or unit, method, system, product or
Equipment is not limited to the step of having listed or unit, but alternatively also includes the step of not listing or unit, or optional
Ground also includes for these processes, method, product or other intrinsic steps of equipment or unit.Additionally, term " first ", " the
Two " and " the 3rd " etc. is, for distinguishing different objects, and to be not intended to describe specific order.
The embodiment of the present invention provides a kind of driving method of LCD brightness dynamic analog gelatinization, the LCD
Plate includes viewing area and non-display area, and the viewing area of the liquid crystal display includes adjustment region, and a kind of situation is, institute
The area (in the present embodiment) of the area less than the viewing area of adjustment region is stated, namely the adjustment region is the display
A zonule in region, another situation is, the adjustment region can also be whole viewing area, namely the regulation
The area in region is equal to the area of the viewing area.The adjustment region includes at least one pixel, such as 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 is referred to, the driving method includes：
S110：Obtain the next frame image information that adjustment region will be switched to；
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 monochrome information for obtaining the next frame picture of all pixels in adjustment region, bright herein
Degree information refers to that the GTG of red sub-pixel in certain pixel, green is for example obtained by the monochrome information after CABC function point analysis
The GTG of sub-pixels, the GTG of blue subpixels.
S120:Analyze red sub-pixel in the next frame image information, green sub-pixels, blue subpixels and account for leading
Situation；
In the present embodiment, according to the next frame image information for obtaining, 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 is accounted for
Leading situation refers to the GTG highest of the sub-pixel in pixel where the sub-pixel, for example, in certain pixel, red sub-pixel
GTG be 100, the GTG 200 of green sub-pixels, the GTG of blue subpixels is 50, then in this case, green sub- picture
Element accounts for leading in the pixel.Certainly, in the present embodiment, when the GTG of two sub-pixels in one pixel is identical, this two
The GTG of individual sub-pixel (one of sub-pixel is green sub-pixels) is both greater than the 3rd GTG of sub-pixel, this kind of situation
Under, the present embodiment specify in the pixel for green sub-pixels account for leading situation, so design be in order to improve brightness change to
It is inadaptable that human eye brings, of course for save energy, in other embodiments of the invention, can also be by non-green sub-pixel
It is defined as accounting for leading situation.In addition, in other embodiments of the invention, specifying which sub-pixel accounts for leading in one pixel
Situation can also be by other known modes, such as by way of brightness domain, but this kind of mode calculates relative GTG side
Formula is complicated, and this kind of mode which kind of color of next frame picture in adjustment region can also be obtained and accounts for leading.
S130:Judge that whether the green sub-pixels account for the accounting of leading situation more than or equal to red sub-pixel and blueness
Sub-pixel accounts for the accounting sum of leading situation；
In the present embodiment, because human eye is higher to Green brightness susceptibility, and it is relative to red luma, blue luminences
Susceptibility is relatively low, and by the analysis of S120 steps, liquid crystal display judges that the green sub-pixels account for leading according to analysis result
Whether the accounting of situation accounts for the accounting sum of leading situation more than red sub-pixel and blue subpixels, 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%, and now, liquid crystal display judges that green sub-pixels account for leading situation
Accounting 60% the accounting sum 40% of leading situation is accounted for more than red sub-pixel and blue subpixels.
S141:If so, then backlight illumination is shown to object brightness with the regulation of the first brightness exponent number with carrying out next frame picture；
In the present embodiment, if the accounting that the green sub-pixels account for leading situation is more than or equal to red sub-pixel and indigo plant
Sub-pixels account for the accounting sum of leading situation, and now, when the next frame picture of the adjustment region shows, color is greener
Color, because human eye is more sensitive to Green brightness, during so as to being switched to next frame picture from present frame picture, if in the unit interval
Brightness is changed greatly, and this kind of change will bring inadaptable to human eye, this inadaptable in order to reduce, and the backlight illumination is with the
To object brightness, herein, the first brightness exponent number refers to be switched to target picture brightness from current picture to the regulation of one brightness exponent number
Change the first brightness exponent number, such as number of the first brightness exponent number is 4-8, for example, 4,5,6,7,8, in the present embodiment,
The brightness number of the first brightness exponent number is 6, refers to the figure shown in Fig. 3 right sides.Herein, due to the first brightness exponent number
Number is more, has changed 6 times so as 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 change also will not bring inadaptable to human eye.
S142:If it is not, then backlight illumination is shown to sight brightness with the regulation of the second brightness exponent number with carrying out next frame picture,
Wherein, the first brightness exponent number is more than the second brightness exponent number.
In the present embodiment, if the accounting that the green sub-pixels account for leading situation is less than red sub-pixel and blue sub- picture
Element accounts for the accounting sum of leading situation, now, when the next frame picture of the adjustment region shows, color it is more red or
Blueness, because human eye is less sensitive to red or blue luminences, during so as to being switched to next frame picture from present frame picture, even if
Brightness is changed greatly in unit interval, and this kind of change also will not bring inadaptable to human eye, meanwhile, in order to reduce backlight illumination
Switching frequency, to reduce power consumption, so that save energy, in the present embodiment, the backlight illumination is adjusted with the second brightness exponent number
Shown with carrying out next frame picture to object brightness, herein, the second brightness exponent number refers to be switched to target from current picture to draw
Face brightness has changed the second brightness exponent number, and such as number of the second brightness exponent number is 1-5, and for example, 1,2,3,4,5, in this implementation
In example, the brightness number of the second brightness exponent number is 3, refers to the figure shown in Fig. 3 left sides.Herein, due to the second brightness
Exponent number is less than the first brightness exponent number, is switched to object brightness from present intensity and has changed 3 times, the Amplitude Ratio of each brightness change the
Amplitude of variation in one brightness exponent number is big, so that the switching frequency of backlight illumination is reduced, so as to reduce power consumption.
In the present embodiment, when next frame picture for the accounting that the more sensitive green sub-pixels of human eye account for leading situation is big
When red sub-pixel and blue subpixels account for the accounting sum of leading situation, change to reduce brightness and give human eye band
To be not suitable with, backlight illumination is with the first brightness exponent number regulation more than the second brightness exponent number to object brightness, now each brightness
The amplitude of change is all little, so that brightness change will not bring inadaptable to human eye；When next frame picture is that human eye is less sensitive
Red sub-pixel and blue subpixels when accounting for the accounting sum of leading situation and accounting for the accounting of leading situation more than green sub-pixels,
Even if now brightness is changed greatly, also will not bring inadaptable to human eye, backlight illumination is with second less than the first brightness exponent number
The regulation of brightness exponent number can reduce the switching frequency of backlight illumination to object brightness, so as to reduce power consumption, so as to be conducive to section
Energy.
In the present embodiment, step S120 is specifically included：
S121：Compare in the next frame image information red sub-pixel, green sub-pixels, blue sub- picture in each pixel
The GTG size of element；
In the present embodiment, the adjustment region includes multiple pixels, based on next frame image information is obtained, so as to show
Panel can obtain in next frame picture red sub-pixel, green sub-pixels, the GTG size of blue subpixels in each pixel,
For example wherein in a pixel, the GTG of red sub-pixel is 100, and the GTG of green sub-pixels is 200, blue subpixels
GTG is 50, compares the GTG size of each sub-pixel in the pixel, and in this example, the ＞ of GTG 200 of green sub-pixels is red
The GTG 50 of the ＞ blue subpixels of GTG 100 of sub-pixel.
S122：The maximum number of pixels of statistics green sub-pixels GTG, red sub-pixel GTG maximum number of pixels, indigo plant
The maximum number of pixels of sub-pixels GTG.
In the present embodiment, GTG maximum is directed to the GTG maximum of which sub-pixel in a pixel, in above-mentioned example
In son, the GTG 200 of green sub-pixels is maximum in the pixel.Count the pixel of each sub-pixel GTG maximum in the adjustment region
The number of pixel is 20 in number, such as adjustment region, and the maximum number of pixels of statistics green sub-pixels GTG is 12,
The maximum number of pixels of red sub-pixel GTG is 6, and the maximum number of pixels of blue subpixels GTG is 2.Herein, when
When the GTG of one pixel Green sub-pixel is identical with the GTG of other two sub-pixels, and both greater than remaining sub-pixel
During GTG, now in order to reduce the inadaptable of human eye, the GTG in the pixel Green sub-pixel is designed as in the pixel most
Greatly.
In the present embodiment, step S122 specifically also includes：
Judge same pixel Green sub-pixel GTG whether more than or equal to red sub-pixel GTG and more than or
Equal to the GTG of blue subpixels；
In the present embodiment, the ash based on red sub-pixel, green sub-pixels, blue subpixels in each pixel for obtaining
Rank size, liquid crystal display judges whether the GTG of same pixel Green sub-pixel is more than or equal to the GTG of red sub-pixel
And more than or equal to the GTG of blue subpixels, in above-mentioned example, the ＞ red sub-pixels of GTG 200 of green sub-pixels
The GTG 50 of the ＞ blue subpixels of GTG 100.
If so, then the maximum number of pixels statistics of green sub-pixels GTG 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 GTG
Prime number mesh is a, and the maximum number of pixels of red sub-pixel GTG is b, and the maximum number of pixels of blue subpixels GTG is c, when
The GTG of preceding pixel Green sub-pixel is more than or equal to the GTG of red sub-pixel and more than or equal to the ash of blue subpixels
Rank, now the maximum number of pixels of green sub-pixels GTG increase by 1, also as a+1, the maximum pixel count of red sub-pixel GTG
Mesh and the maximum number of pixels of blue subpixels GTG are constant.
If it is not, the then maximum number of pixels of red sub-pixel GTG and the maximum number of pixels sum of blue subpixels GTG
Increase by 1.
In this example, it is assumed that when counting on previous pixel, the maximum number of pixels of green sub-pixels GTG is a,
The maximum number of pixels of red sub-pixel GTG is b, and the maximum number of pixels of blue subpixels GTG is c, red in current pixel
When the GTG of sub-pixels is for maximum, now the maximum number of pixels of red sub-pixel GTG increases by 1, also as b+1, green
The maximum number of pixels of pixel gray level and the maximum number of pixels of blue subpixels GTG are constant；Blue subpixels in current pixel
GTG for it is maximum when, now the maximum number of pixels of blue subpixels GTG increases by 1, also as c+1, green sub-pixels GTG
Maximum number of pixels and the maximum number of pixels of red sub-pixel GTG are constant.
By this kind of mode, green sub-pixels GTG maximum pixel when obtaining adjustment region next frame picture can be counted
The maximum number of pixels of the maximum number of pixels of number, red sub-pixel GTG, blue subpixels GTG.Green after "as if" statistics
The maximum number of pixels of sub-pixel GTG is A, and the maximum number of pixels of red sub-pixel GTG is B, and blue subpixels GTG 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 the accounting that blue subpixels account for leading situation is C/ (A+B+C), red sub-pixel and blueness
The accounting sum that sub-pixel accounts for leading situation is (B+C)/(A+B+C).
In addition, in the present embodiment, bringing the inadaptable of human eye to weaken brightness change, and reduce backlight illumination
, to reduce power consumption, the size of each ladder is identical in the first brightness exponent number for switching frequency, namely in 6 ladders in the unit interval
The first brightness change be identical, the size of each ladder is identical in the second brightness exponent number, namely the unit interval in 3 ladders
Interior the second brightness change is identical, and, in the present embodiment, the first brightness change changes less than the second brightness.
The embodiment of the present invention additionally provides a kind of liquid crystal display, and the liquid crystal display includes adjustment region, the tune
Section 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 also includes：
Acquiring unit 110, it is used to obtain the next frame image information that adjustment region will be switched to；
Analytic unit 120, it is used to analyze red sub-pixel, green sub-pixels, blueness in the next frame image information
Sub-pixel accounts for leading situation；
Judging unit 130, it is used to judge that whether the green sub-pixels account for the accounting of leading situation more than or equal to red
Sub-pixels and blue subpixels account for the accounting sum of leading situation；
Processing unit 140, if its judged result for being used for judging unit 130 is yes, backlight illumination is with the first luminance step
Number regulation shown with carrying out next frame picture to object brightness, if the judged result of judging unit 130 is no, backlight illumination with
Second brightness exponent number is adjusted and shown with carrying out next frame picture to sight brightness, wherein, the first brightness exponent number is more than the second brightness
Exponent number.
In the present embodiment, the analytic unit is specifically included：
Comparing unit 121, it is used in next frame image information described in comparing red sub-pixel in each pixel, green
Pixel, the GTG size of blue subpixels；
Statistic unit 122, it is used to count the maximum number of pixels of green sub-pixels GTG, red sub-pixel GTG maximum
Number of pixels, the maximum number of pixels of blue subpixels GTG.
In the present embodiment, the statistic unit specifically for：
Judge same pixel Green sub-pixel GTG whether more than or equal to red sub-pixel GTG and more than or
Equal to the GTG of blue subpixels；
If so, then the maximum number of pixels statistics of green sub-pixels GTG increases by 1；
If it is not, the then maximum number of pixels of red sub-pixel GTG and the maximum number of pixels sum of blue subpixels GTG
Increase by 1.
It should be noted that each embodiment in this specification is described by the way of progressive, each embodiment weight
Point explanation is all difference with other embodiments, between each embodiment identical similar part mutually referring to.
For device embodiment, because it is substantially similar to embodiment of the method, so description is fairly simple, related part referring to
The part explanation of embodiment of the method.
By the description of above-described embodiment, the present invention has advantages below：
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 accounting sum of leading situation, change to reduce brightness and bring inadaptable to human eye, carry on the back
, with the first brightness exponent number regulation more than the second brightness exponent number to object brightness, the amplitude that now each brightness changes is all for brightness
Less, so that brightness change will not bring inadaptable to human eye；When next frame picture is the less sensitive red sub-pixel of human eye
When the accounting sum for accounting for leading situation with blue subpixels accounts for the accounting of leading situation more than green sub-pixels, even if now brightness
Change greatly, also will not bring inadaptable to human eye, backlight illumination is adjusted with the second brightness exponent number less than the first brightness exponent number
To object brightness, the switching frequency of backlight illumination can be reduced, so as to reduce power consumption, so as to be conducive to energy-conservation.
Above disclosed is only present pre-ferred embodiments, can not limit the right model of the present invention with this certainly
Enclose, therefore the equivalent variations made according to the claims in the present invention, still belong to the scope that the present invention is covered.
Claims (10)
1. a kind of driving method that LCD brightness dynamic analog is gelatinized, 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, its feature
It is, including：
Obtain the next frame image information that adjustment region will be switched to；
Analyze red sub-pixel in the next frame image information, green sub-pixels, blue subpixels and account for leading situation；
Judge that whether the green sub-pixels account for the accounting of leading situation and accounted for more than or equal to red sub-pixel and blue subpixels
The accounting sum of leading situation；
If so, then backlight illumination is shown to object brightness with the regulation of the first brightness exponent number with carrying out next frame picture；
If it is not, then backlight illumination is shown to sight brightness with the regulation of the second brightness exponent number with carrying out next frame picture, wherein, first
Brightness exponent number is more than the second brightness exponent number.
2. the driving method that LCD brightness dynamic analog as claimed in claim 1 is gelatinized, it is characterised in that the regulation
Region includes multiple pixels.
3. the driving method that LCD brightness dynamic analog as claimed in claim 2 is gelatinized, it is characterised in that the regulation
Region is included in the viewing area of liquid crystal display.
4. the driving method that LCD brightness dynamic analog as claimed in claim 1 is gelatinized, it is characterised in that analysis is described
Red sub-pixel in next frame image information, green sub-pixels, blue subpixels are specifically included the step of accounting for leading situation：
Compare in the next frame image information red sub-pixel, green sub-pixels, the GTG of blue subpixels in each pixel
Size；
The maximum number of pixels of statistics green sub-pixels GTG, red sub-pixel GTG maximum number of pixels, blue subpixels
The maximum number of pixels of GTG.
5. the driving method that LCD brightness dynamic analog as claimed in claim 4 is gelatinized, it is characterised in that statistics green
The maximum picture of the maximum number of pixels of the maximum number of pixels of sub-pixel GTG, red sub-pixel GTG, blue subpixels GTG
Prime number purpose step is specifically included：
Judge whether the GTG of same pixel Green sub-pixel is more than or equal to the GTG of red sub-pixel and is more than or equal to
The GTG of blue subpixels；
If so, then the maximum number of pixels statistics of green sub-pixels GTG increases by 1；
If it is not, then the maximum number of pixels of red sub-pixel GTG and the maximum number of pixels sum of blue subpixels GTG increase
1。
6. the driving method that LCD brightness dynamic analog as claimed in claim 1 is gelatinized, it is characterised in that described first
The number of brightness exponent number is 4-8, and the number of the second brightness exponent number is 1-5.
7. the driving method that LCD brightness dynamic analog as claimed in claim 1 is gelatinized, it is characterised in that described first
Brightness change in brightness exponent number in the unit interval is identical, the brightness change phase in the second brightness exponent number in the unit interval
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, it is characterised in that also include：
Acquiring unit, it is used to obtain the next frame image information that adjustment region will be switched to；
Analytic unit, it is used to analyzing red sub-pixel in the next frame image information, green sub-pixels, blue subpixels
Account for leading situation；
Judging unit, it is used to judge that whether the green sub-pixels account for the accounting of leading situation more than or equal to red sub-pixel
With the accounting sum that blue subpixels account for leading situation；
Processing unit, if its judged result for being used for judging unit is yes, backlight illumination is with the first brightness exponent number regulation to mesh
Mark brightness shows that, if the judged result of judging unit is no, backlight illumination is with the second brightness exponent number to carry out next frame picture
Adjust sight brightness and shown with carrying out next frame picture, wherein, the first brightness exponent number is more than the second brightness exponent number.
9. liquid crystal display as claimed in claim 8, it is characterised in that the analytic unit includes：
Comparing unit, it is used in next frame image information described in comparing red sub-pixel, green sub-pixels, indigo plant in each pixel
The GTG size of sub-pixels；
Statistic unit, it is used to count the maximum pixel of the maximum number of pixels of green sub-pixels GTG, red sub-pixel GTG
The maximum number of pixels of number, blue subpixels GTG.
10. liquid crystal display as claimed in claim 9, it is characterised in that the statistic unit specifically for：
Judge whether the GTG of same pixel Green sub-pixel is more than or equal to the GTG of red sub-pixel and is more than or equal to
The GTG of blue subpixels；
If so, then the maximum number of pixels statistics of green sub-pixels GTG increases by 1；
If it is not, then the maximum number of pixels of red sub-pixel GTG and the maximum number of pixels sum of blue subpixels GTG 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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| CN106875914B (en) | 2019-07-23 |
| WO2018192018A1 (en) | 2018-10-25 |
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