CN104715731A - Screen brightness adjustment method and device and liquid crystal display device - Google Patents
Screen brightness adjustment method and device and liquid crystal display device Download PDFInfo
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- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
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- 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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Abstract
The invention discloses a screen brightness adjustment method and device and a liquid crystal display device. The method mainly comprises the steps that initial brightness data of brightness adjustment regions at reference rows or reference columns are determined; according to the preset fitting function relation, the initial brightness data of the brightness adjustment regions at the reference rows or the reference columns and the locations and sequences of all the brightness adjustment regions in the reference rows or the reference columns, ideal brightness data corresponding to each brightness adjustment region at the reference rows or the reference columns are determined, the brightness data in the same brightness adjustment region are subtracted from the ideal brightness data to obtain compensated brightness data; according to the compensated brightness data, brightness adjustment values of all the brightness adjustment regions in the current reference rows or the current reference columns are determined; according to the brightness adjustment values, the brightness of the brightness adjustment regions is adjusted, so that brightness data of a whole screen approach the ideal brightness data, the display defects caused due to the fact that the number of backlights is reduced, and the light mixing distance is shortened are overcome, the whole screen conducts displaying according to ideal brightness distribution, and uniform distribution of the brightness is achieved.
Description
Technical field
The present invention relates to display technique field, particularly relate to a kind of screen brightness regulation method, device and liquid crystal indicator.
Background technology
Along with the fast development of display technique industry, liquid crystal display (Liquid Crystal Display, LCD) has become the product of main flow in recent years.Under the ordering about of user's request and industry competition pressure, the deisgn approach of LCD is in the feature such as more frivolous, power consumption is little.
Due to the display that LCD is not active light-emitting type, needing to rely on backlight provides emergent light could realize display.And backlight is generally integrated in backlight module, especially down straight aphototropism mode set, as shown in Figure 1, existing down straight aphototropism mode set mainly comprises: multiple backlight 101, diffuser plate 102, diffusion sheet 103, blooming piece 104 etc.If require to design according to frivolous, power consumption is little etc., comparatively feasible mode is exactly realize the thinning of LCD by reducing the mode of light mixing distance in backlight module, in addition, is reduced the power consumption of LCD by the mode reducing backlight quantity.
But, the minimizing of backlight quantity, make the distance of adjacent backlight larger, the brightness of two backlight middle position is obviously dark reduces light mixing distance in the brightness of two backlight positions, cannot ensure that the light that backlight sends is mixed to get uniform backlight preferably, thus, cause backlight module to send the backlight of light and shade inequality, form Mura phenomenon, affect the display effect of LCD.
Summary of the invention
The embodiment of the present invention provides a kind of screen brightness regulation method, device and liquid crystal indicator, in order to solve exist in prior art reduce backlight quantity reduce light mixing distance to realize the frivolous of display device, and then cause being formed the problem of the display defects such as backlight illumination is uneven.
The embodiment of the present invention is by the following technical solutions:
A kind of screen brightness regulation method, be applied in liquid crystal indicator, described method comprises:
Determine each brightness adjustment region in the reference picture that current screen shows, wherein, described brightness adjustment region to divide reference picture according to the row and column of predetermined number to obtain, and described reference picture is the homogeneous image of gray scale;
Following operation is performed respectively for every a line brightness adjustment region or each row brightness adjustment region:
Obtain the original intensity data in the brightness adjustment region with reference to row or column;
According to original intensity data and each brightness adjustment region position sequence in reference row or column in the fitting function relation preset, the described brightness adjustment region with reference to row or column, determine with reference to desired level data corresponding to each brightness adjustment region in row or column;
By the described original intensity data in same brightness adjustment region and described desired level data poor, be compensated brightness data;
According to the brightness adjustment value in each brightness adjustment region in each compensate for brightness data determination current reference row or column in current reference row or column;
According to each brightness adjustment value determined, brightness adjustment is carried out to each brightness adjustment region in current row or column.
A kind of screen intensity adjusting gear, be applied in liquid crystal indicator, described device comprises:
First processing unit, for determining each brightness adjustment region in the reference picture that current screen shows, wherein, described brightness adjustment region to divide reference picture according to the row and column of predetermined number to obtain, and described reference picture is the homogeneous image of gray scale;
Second processing unit, for obtaining the original intensity data in the brightness adjustment region with reference to row or column;
3rd processing unit, for original intensity data and each brightness adjustment region position sequence in reference row or column according to the fitting function relation preset, the described brightness adjustment region with reference to row or column, determine with reference to desired level data corresponding to each brightness adjustment region in row or column;
Difference unit, for by the described brightness data in same brightness adjustment region and described desired level data poor, be compensated brightness data;
Fourth processing unit, for the brightness adjustment value according to each brightness adjustment region in each compensate for brightness data determination current reference row or column in current reference row or column;
Adjustment unit, for according to each brightness adjustment value determined, carries out brightness adjustment to each brightness adjustment region in current row or column.
A kind of liquid crystal indicator, comprises described screen intensity adjusting gear.
By above-mentioned Adjusted Option, for each with reference to row or column, according to the fitting function relation preset and the original intensity data of acquisition, matching obtains desirable brightness data function, and according to intrinsic brilliance data function and desired level data function poor, be compensated brightness data function, and then utilize this compensate for brightness data function determination brightness adjustment value, wherein, this brightness adjustment value can be the compensate for brightness data that compensate for brightness data function is determined, also can be the revised compensate for brightness data of comparatively coarseness.Finally, according to the brightness adjustment value determined, corresponding brightness adjustment region is carried out to the adjustment of brightness, particularly, can be that the brightness adjustment value first determined by line direction is adjusted this brightness adjustment region, then by the brightness adjustment value that column direction is determined, this brightness adjustment region be adjusted.Actual is by adjustment driving voltage, changes liquid crystal transmitance, and then realizes the adjustment of screen intensity.By this Adjusted Option, make the brightness data of whole screen all close to desired level data, improve due to the uneven display defect of the backlight illumination that backlight reduces and light mixing distance shortens and causes, whole screen is shown according to desirable Luminance Distribution, achieves the homogenising distribution of brightness.Meanwhile, when determining brightness adjustment value, can select to determine according to revised compensate for brightness data, thus, avoid the adjustment that driving voltage is too high or too low, the amplitude that driving voltage is adjusted is comparatively even, improves processing speed and the processing power of adjusting gear; And this amplitude adjusts operation comparatively uniformly, ensure that whole screen can realize brightness adjustment faster, thus shorten the response time.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly introduced, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the method step schematic diagram in the embodiment of the present invention one;
The flow chart of steps of a kind of screen brightness regulation method that Fig. 2 provides for the embodiment of the present invention;
A kind of row, column that Fig. 3 provides for the embodiment of the present invention divides schematic diagram;
The ideal effect schematic diagram that Fig. 4 (a) distributes for brightness data;
The actual effect schematic diagram that Fig. 4 (b) distributes for brightness data;
Fig. 5 is intrinsic brilliance data function and the distribution schematic diagram of desired level data function in preset coordinate system in the embodiment of the present invention;
Fig. 6 is the curve distribution schematic diagram of compensate for brightness data function;
The structural representation of a kind of screen intensity adjusting gear that Fig. 7 provides for the embodiment of the present invention.
Embodiment
In order to make the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the present invention is described in further detail, and obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
It should be noted that at this, due to the program for be liquid crystal indicator, the brightness of its screen is determined by two aspects, on the one hand, is the backlight illumination that the backlight module of display device sends, and is on the other hand the transmittance of liquid crystal.In the present invention, the quantity due to backlight is fixing, and its position is also fixing, therefore, can not be adjusted the brightness of screen by the mode changing backlight illumination, and for the transmittance of liquid crystal, can be changed by adjustment voltage, therefore, the present invention proposes a kind of screen intensity Adjusted Option, be multiple brightness adjustment regions by the row and column according to predetermined number by the screen divider of current display image, then, according to iteration theorem, following operation is performed respectively: the original intensity data determining the brightness adjustment region with reference to row or column for all brightness adjustment regions of a line every in current screen and all brightness adjustment regions of each row, according to the fitting function relation preset, the original intensity data in each brightness adjustment region and each brightness adjustment region position sequence in reference row or column, determine with reference to desired level data corresponding to each brightness adjustment region in row or column, by the described brightness data in same brightness adjustment region and described desired level data poor, be compensated brightness data, according to the brightness adjustment value in each brightness adjustment region in each compensate for brightness data determination current reference row or column in current reference row or column, according to each brightness adjustment value determined, brightness adjustment is carried out to each brightness adjustment region in current row or column.Thus, by the brightness data of whole screen with row relax of advancing, and process with row, make the brightness data of whole screen all close to desired level data, improve due to the display defect that backlight reduces and light mixing distance shortens and causes, whole screen is shown according to desirable Luminance Distribution, achieves the homogenising distribution of brightness.Meanwhile, when determining brightness adjustment value, can select to determine according to revised compensate for brightness data, thus, avoid the adjustment that driving voltage is too high or too low, the amplitude that driving voltage is adjusted is comparatively even, improves processing speed and the processing power of adjusting gear; And this amplitude adjusts operation comparatively uniformly, ensure that whole screen can realize brightness adjustment faster, thus shorten the response time.
Below by specific embodiment, technical scheme of the present invention is described, the present invention includes but be not limited to following examples.
As shown in Figure 2, be the flow chart of steps of a kind of screen brightness regulation method that the embodiment of the present invention provides, the method mainly comprises the following steps:
Step 101: determine each brightness adjustment region in the reference picture that current screen shows.
Wherein, described brightness adjustment region to divide reference picture according to the row and column of predetermined number to obtain, described reference picture is the homogeneous image of gray scale, and the corresponding brightness data in each brightness adjustment region, includes multiple pixel in each brightness adjustment region.
Particularly, if the resolution of current screen is 640x480, can be row region and the column region of predetermined number by screen divider according to the data-handling capacity of present intensity adjusting gear, such as: as shown in Figure 3, be 10 row and 10 row by this screen divider, so, this screen is divided into 100 brightness adjustment regions, wherein, often include 10 brightness adjustment regions in row brightness adjustment region, and comprise 64x48 pixel in each brightness adjustment region.Often include 10 brightness adjustment regions in row brightness adjustment region, and comprise 64x48 pixel in each brightness adjustment region.
Step 102: the original intensity data determining the brightness adjustment region with reference to row or column.
In this step, utilize technical grade charge coupled cell (Charge-coupled Device, CCD) sampling instrument, such as: CCD camera, the brightness data of each pixel corresponding position is extracted by the reference row or column mode of the image shown in shooting current screen, using each brightness data of extraction as the brightness data stating each pixel in screen, then, the brightness data comprised in each brightness adjustment region is added and is averaging, and obtains the original intensity data in each brightness adjustment region.It should be noted that, in embodiments of the present invention, adopt CCD camera to be only a kind of preferred scheme, other modes existing (such as two color analysis instruments) can also be adopted to obtain the brightness data of each pixel.In addition, the original intensity data in each brightness adjustment region can also be determined in other way, such as: the summation of the brightness data comprised using each brightness adjustment region is as the brightness data in each brightness adjustment region.
It should be noted that, in embodiments of the present invention, also can obtain the original intensity data of whole reference picture for reference picture, then store for subsequent use.
Shown in Fig. 4 (a), it is the ideal effect schematic diagram of the brightness data distribution of a reference picture, the zone line brightness of screen picture is higher, the brightness of surrounding reduces gradually, this is because: consider that user compares the central area paying close attention to screen, it is too high that the brightness of other peripheral regions need not be arranged, therefore, in existing liquid crystal indicator, need to be provided with blooming piece and most of light is gathered zone line, form ideal screen intensity distributed effect.
In the image that current shooting obtains, its actual Luminance Distribution is unsatisfactory, due to the minimizing of backlight and the shortening of light mixing distance, a lot of place is caused to occur the display defects such as brightness irregularities, form the Luminance Distribution inconsistent with desirable screen intensity distributed effect, homogeneity is poor, as shown in Fig. 4 (b).
Step 103: the position sequence in reference row or column according to the fitting function relation preset and each brightness adjustment region, determines with reference to desired level data corresponding to each brightness adjustment region in row or column.
In embodiments of the present invention, can by numerical simulation tool, such as MATLAB software, the brightness data in brightness adjustment region each in current row or column is mapped in preset coordinate system, wherein, preset coordinate system is by being the coordinate system that vertical coordinate forms with the position sequence in brightness adjustment region for horizontal coordinate with brightness data.Particularly, preset coordinate system is selected at the modeling interface of MATLAB software, and be illustrated in modeling interface, horizontal axis in this preset coordinate system represents the position sequence in brightness adjustment region, vertical coordinate axis represents the brightness data in brightness adjustment region, wherein, the position value in brightness adjustment region is with this brightness adjustment region place current line or when the sequence in prostatitis is as the criterion, such as: for the brightness adjustment region of certain a line, its 10th brightness adjustment region position sequence in preset coordinate system is 10.Or, with the mid point with reference to row or column for origin, if reference line comprises 20 brightness adjustment regions, then point midway is set to origin, the position sequence in the brightness adjustment region on the left of initial point is by-1 ~-10, and the position sequence in the brightness adjustment region on the right side of initial point is by 1 ~ 10.Then by MATLAB software, the brightness data in brightness adjustment region each in current row or column is imported, and in preset coordinate system, draw intrinsic brilliance data function the Y '=f (x) for current row or column according to position coordinates and brightness data coordinate.As shown in Figure 5, suppose, for current arbitrary row, to get the brightness data in 400 brightness adjustment regions, it is mapped to respectively in coordinate system as shown in Figure 5, obtain by multiple irregular curve R formed.Wherein, the horizontal coordinate in this coordinate system is the position in brightness adjustment region, is all distributed with brightness data from 0-400, and the span of brightness data is [200,320].
Consider in existing display device, be provided with blooming piece to be converged to zone line.Therefore, need according to blooming piece concentrating light principles, determine the fitting function relation preset:
wherein, x
1represent the brightness adjustment region position sequence in reference row or column of the reference position of described reference row or column to point midway place, Y
1represent the described brightness data corresponding to each brightness adjustment region, point midway place with reference to the reference position of row or column, a
1, b
1, c
1be respectively the coefficient determining this desired level data function;
wherein, x
2represent that the brightness adjustment region of the described point midway with reference to row or column position is to terminal with reference to the position sequence in row or column, Y
2represent the described point midway brightness data that each brightness adjustment region, position is corresponding to terminal with reference to row or column, a
2, b
2, c
2be respectively the coefficient determining this desired level data function;
Utilize MATLAB software, matching is carried out to the brightness data with reference to row or column, obtains desired level curve
with
thus, just determine a
1, b
1, c
1be respectively z
1, z
2, z
3; a
2, b
2, c
2be respectively z
4, z
5, z
6.
It should be noted that, in embodiments of the present invention, preset fitting function relation and be not limited to above-mentioned fitting function relation, can also for being similar to:
fitting function relation.
Now, the desired level data and curves S simulated also can be mapped in coordinate system as shown in Figure 5, thus the difference of intrinsic brilliance data and desired level data in each brightness adjustment region can be seen intuitively.
It should be noted that, this simulation process can be realized by other simulation softward, is not limited to MATLAB software involved in the present invention.
Step 104: by the described brightness data in same brightness adjustment region and described desired level data poor, be compensated brightness data.
Utilize numerical simulation software, by intrinsic brilliance data function and desired level data function poor, be compensated brightness data function
and the curve distribution schematic diagram of compensate for brightness data function z is shown at the modeling interface of MATLAB software, as shown in Figure 6, in this schematic diagram, horizontal coordinate represents the position in each brightness adjustment region, vertical coordinate represents the difference of brightness data and desired level data in each brightness adjustment region, wherein, on the occasion of representing that the brightness data in this brightness adjustment region is larger than desired level data, need the brightness data in this brightness adjustment region to turn down; Negative value represents that the brightness data in this brightness adjustment region is less than desired level data, needs the brightness data in this brightness adjustment region to heighten.
Step 105: according to the brightness adjustment value in each brightness adjustment region in each compensate for brightness data determination current reference row or column in current reference row or column.
The curve distribution schematic diagram of compensate for brightness data function z is as shown in Figure 6 known, according to this compensate for brightness data function z, the compensate for brightness data that each brightness adjustment region is corresponding can be determined respectively, and using the brightness adjustment value of these compensate for brightness data as brightness adjustment region.
Preferably, consider in the curve distribution schematic diagram of the compensate for brightness data function z shown in Fig. 6, differing greatly of the compensate for brightness data that each brightness adjustment region comprised in each row or column is corresponding, so for current row or column, the brightness adjustment region that the absolute value of compensate for brightness data is larger just must significantly adjust, such as: the compensate for brightness data in a certain brightness adjustment region are-5, the compensate for brightness data in the brightness adjustment region in the left side be adjacent are+10, the compensate for brightness data in the brightness adjustment region on the right side be adjacent are+8.Because the present invention changes the transmitance of liquid crystal by adjustment driving voltage, and then adjustment screen intensity, therefore, this significantly brightness adjustment will inevitably increase the carrying processing power of driving.For this reason, the compensation in each brightness adjustment region in current row or column can be determined according to compensate for brightness data function, each compensation determined is averaging, obtain the compensate for brightness mean value n of current row or column, compensate for brightness data function is poor with the compensate for brightness mean value obtained, obtain revised compensate for brightness data function z (x),=z (x)-n, determines the brightness adjustment value in each brightness adjustment region in current row or column according to revised compensate for brightness data function.
Step 106: according to each brightness adjustment value determined, carries out brightness adjustment to each brightness adjustment region in current row or column.
Particularly, the brightness adjustment value in each brightness adjustment region determined is converted to the voltage change in correspondingly each brightness adjustment region, and adjust according to the voltage of voltage change to pixel corresponding to each brightness adjustment region, be adjusted to make the brightness in each brightness adjustment region in current reference row or column.
Preferably, the supply of voltage signal can be realized by tcon plate.
In embodiments of the present invention, because there is respective brightness adjustment value in each brightness adjustment region, therefore, for the pixel comprised in arbitrary brightness adjustment region, as long as belong to same brightness adjustment region, its brightness adjustment value is the same.
Below by a concrete example, such scheme of the present invention is simply described.
Suppose that the brightness data in 9 brightness adjustment regions of the reference line determined is respectively 80,20,30,40,60,40,30,20,10.The brightness data of this reference line is brought in numerical simulation software, simulates intrinsic brilliance data function Y '=f (x), then according to the fitting function relation preset
determine desired level data function
and determine the desired level data in each brightness adjustment region further: 18,20,35,46,80,46,35,20,18.By desired level data and intrinsic brilliance data poor, obtain the compensate for brightness data in each brightness adjustment region respectively :-62,0,5,6,20,6,5,0,8.If using the compensate for brightness data that calculate as brightness adjustment value, then determine the voltage change that each compensate for brightness data are corresponding respectively, then carry out brightness adjustment respectively to 9 brightness adjustment regions of this reference line successively.If reduce the driving overload caused due to adjustment voltage, first can be compensated average brightness according to each compensate for brightness data :-1.3, then by compensate for brightness data and compensate for brightness mean value poor, obtain brightness adjustment value :-60.7,1.3,6.3,7.3,21.3,7.3,6.3,1.3,9.3, then successively respectively brightness adjustment is carried out to 9 brightness adjustment regions that this reference line obtains.
According to above-mentioned Adjusted Option, first can perform above-mentioned Adjusted Option to the every a line in the screen of display device, and then above-mentioned Adjusted Option is all performed to each row, particularly, pass through such scheme, determine the brightness adjustment value in the brightness adjustment region comprised in every a line, and determine the brightness adjustment value in the brightness adjustment region comprised in each row, like this, same brightness adjustment region will corresponding two brightness adjustment value (brightness adjustment values on line direction, brightness adjustment value on column direction), thus, the brightness adjustment value of line direction can be first utilized to carry out brightness adjustment to this brightness adjustment region, the brightness adjustment value of recycling column direction carries out brightness adjustment to this brightness adjustment region.Also can first utilize the brightness adjustment value of column direction to carry out brightness adjustment to this brightness adjustment region, the brightness adjustment value of recycling line direction carries out brightness adjustment to this brightness adjustment region.The present invention does not specifically limit this, in addition, also namely can adjust this brightness adjustment region after determining the brightness adjustment value of line direction, and then according to the brightness adjustment value of the brightness data determination column direction in each brightness adjustment region determined before, and this brightness adjustment value is utilized to carry out second time adjustment.Thus, not only make every a line meet desirable brightness data distribution, also make each row also meet desirable brightness data distribution.
By above-mentioned Adjusted Option, for each row or column, the brightness data of the current screen obtained is utilized to obtain intrinsic brilliance data function, and according to the brightness data of blooming piece concentrating light principles and acquisition, matching obtains desirable brightness data function, and compare according to intrinsic brilliance data function and desired level data function, be compensated brightness data function, and then utilize this compensate for brightness data function determination brightness adjustment value, wherein, this brightness adjustment value can be the compensate for brightness data that compensate for brightness data function is determined, also can be the revised compensate for brightness data of comparatively coarseness.Finally, according to the brightness adjustment value determined, corresponding brightness adjustment region is carried out to the adjustment of brightness, actual is by adjustment driving voltage, changes liquid crystal transmitance, and then realizes the adjustment of screen intensity.By this Adjusted Option, make the brightness data of whole screen all close to desired level data, improve due to the display defect that backlight reduces and light mixing distance shortens and causes, whole screen is shown according to desirable Luminance Distribution, achieve the homogenising distribution of brightness.Meanwhile, when determining brightness adjustment value, can select to determine according to revised compensate for brightness data, thus, avoid the adjustment that driving voltage is too high or too low, the amplitude that driving voltage is adjusted is comparatively even, improves processing speed and the processing power of adjusting gear; And this amplitude adjusts operation comparatively uniformly, ensure that whole screen can realize brightness adjustment faster, thus shorten the response time.
Belong to same inventive concept based on above-mentioned screen brightness regulation method, the embodiment of the present invention additionally provides a kind of screen intensity adjusting gear, is just described this device by specific embodiment below.
As shown in Figure 7, be a kind of screen intensity adjusting gear that the embodiment of the present invention provides, this device can be integrated in the inside of display device, and also can hang over the outside of display device outward, its locations of structures does not limit.Wherein, this device mainly comprises:
First processing unit 201, for for determining each brightness adjustment region in the reference picture that current screen shows.Wherein, described brightness adjustment region to divide reference picture according to the row and column of predetermined number to obtain, and described reference picture is the homogeneous image of gray scale.
Second processing unit 202, for determining the original intensity data in the brightness adjustment region with reference to row or column.This second processing unit 202, specifically for the reference row or column utilizing industrial camera to take the reference picture shown in current screen, and extracts the brightness data of position corresponding with each pixel in the reference row or column of reference picture; According to multiple brightness adjustment regions that the row and column of predetermined number divides, the brightness data that each brightness adjustment region comprises is averaging, obtains the original intensity data in each brightness adjustment region.
3rd processing unit 203, for original intensity data and each brightness adjustment region position sequence in reference row or column according to the fitting function relation preset, the described brightness adjustment region with reference to row or column, determine with reference to desired level data corresponding to each brightness adjustment region in row or column.Wherein, the 3rd processing unit 203, specifically for according to blooming piece concentrating light principles, determine the fitting function relation preset:
wherein, x
1represent the brightness adjustment region position sequence in reference row or column of the reference position of described reference row or column to point midway place, Y
1represent the brightness data that each brightness adjustment region is corresponding, a
1, b
1, c
1be respectively the coefficient determining this desired level data function, and,
wherein, x
2represent that the brightness adjustment region of the described point midway with reference to row or column position is to terminal with reference to the position sequence in row or column, Y
2represent the brightness data that each brightness adjustment region is corresponding, a
2, b
2, c
2be respectively the coefficient determining this desired level data function;
According to fitting function relation, matching is carried out to the brightness data with reference to row or column, obtains desired level curve; The desired level data in all brightness adjustment regions with reference to row or column are determined according to desired level curve.
Difference unit 204, for by the described brightness data in same brightness adjustment region and described desired level data poor, be compensated brightness data.
Fourth processing unit 205, for the brightness adjustment value according to each brightness adjustment region in each compensate for brightness data determination current reference row or column in current reference row or column.Fourth processing unit 205, specifically for being defined as the compensation in each brightness adjustment region in current row or column by described compensate for brightness data; Each compensation determined is averaging, obtains the compensate for brightness mean value of current row or column; By described compensation and described compensate for brightness mean value poor, obtain the brightness adjustment value with reference to each brightness adjustment region in row or column.
Adjustment unit 206, for according to each brightness adjustment value determined, carries out brightness adjustment to each brightness adjustment region in current row or column.Wherein, this adjustment unit 206, specifically for: the brightness adjustment value in each brightness adjustment region described in determining is converted to the voltage change in correspondingly each brightness adjustment region, and adjust according to the voltage of described voltage change to pixel corresponding to each brightness adjustment region, be adjusted to make the brightness in each brightness adjustment region in current reference row or column.
In addition, the embodiment of the present invention additionally provides a kind of liquid crystal indicator, comprises screen intensity adjusting gear in above-described embodiment.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disk memory, CD-ROM, optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the process flow diagram of the method for the embodiment of the present invention, equipment (system) and computer program and/or block scheme.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block scheme and/or square frame and process flow diagram and/or block scheme and/or square frame.These computer program instructions can being provided to the processor of multi-purpose computer, special purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computing machine or other programmable data processing device produce device for realizing the function of specifying in process flow diagram flow process or multiple flow process and/or block scheme square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in process flow diagram flow process or multiple flow process and/or block scheme square frame or multiple square frame.
These computer program instructions also can be loaded in computing machine or other programmable data processing device, make on computing machine or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computing machine or other programmable devices is provided for the step realizing the function of specifying in process flow diagram flow process or multiple flow process and/or block scheme square frame or multiple square frame.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (11)
1. a screen brightness regulation method, is applied in liquid crystal indicator, it is characterized in that, described method comprises:
Determine each brightness adjustment region in the reference picture that current screen shows, wherein, described brightness adjustment region to divide reference picture according to the row and column of predetermined number to obtain, and described reference picture is the homogeneous image of gray scale;
Following operation is performed respectively for every a line brightness adjustment region or each row brightness adjustment region:
Obtain the original intensity data in the brightness adjustment region with reference to row or column;
According to original intensity data and each brightness adjustment region position sequence in reference row or column in the fitting function relation preset, the described brightness adjustment region with reference to row or column, determine with reference to desired level data corresponding to each brightness adjustment region in row or column;
By the described original intensity data in same brightness adjustment region and described desired level data poor, be compensated brightness data;
According to the brightness adjustment value in each brightness adjustment region in each compensate for brightness data determination current reference row or column in current reference row or column;
According to each brightness adjustment value determined, brightness adjustment is carried out to each brightness adjustment region in current row or column.
2. the method for claim 1, is characterized in that,
The fitting function relation that described basis is preset, the original intensity data in the described brightness adjustment region with reference to row or column and each brightness adjustment region position sequence in reference row or column, determine, with reference to desired level data corresponding to each brightness adjustment region in row or column, specifically to comprise:
According to blooming piece concentrating light principles, determine the fitting function relation preset:
wherein, x
1represent the brightness adjustment region position sequence in reference row or column of the reference position of described reference row or column to point midway place, Y
1represent the described brightness data corresponding to each brightness adjustment region, point midway place with reference to the reference position of row or column, a
1, b
1, c
1be respectively the coefficient determining this desired level data function, and,
wherein, x
2represent that the brightness adjustment region of the described point midway with reference to row or column position is to terminal with reference to the position sequence in row or column, Y
2represent the described point midway brightness data that each brightness adjustment region, position is corresponding to terminal with reference to row or column, a
2, b
2, c
2be respectively the coefficient determining this desired level data function;
According to described fitting function relation, matching is carried out to the brightness data with reference to row or column, obtains desired level curve;
The desired level data in all brightness adjustment regions with reference to row or column are determined according to described desired level curve.
3. the method for claim 1, is characterized in that,
The described brightness adjustment value according to each brightness adjustment region in each compensate for brightness data determination current reference row or column in current reference row or column, specifically comprises:
Described compensate for brightness data are defined as the compensation in each brightness adjustment region in current row or column;
Each compensation determined is averaging, obtains the compensate for brightness mean value of current row or column;
By described compensation and described compensate for brightness mean value poor, obtain the brightness adjustment value with reference to each brightness adjustment region in row or column.
4. the method for claim 1, is characterized in that,
Described each brightness adjustment value according to determining, brightness adjustment is carried out to each brightness adjustment region in current row or column, specifically comprises:
The brightness adjustment value in each brightness adjustment region described in determining is converted to the voltage change in correspondingly each brightness adjustment region, and adjust according to the voltage of described voltage change to pixel corresponding to each brightness adjustment region, be adjusted to make the brightness in each brightness adjustment region in current reference row or column.
5. the method as described in as arbitrary in claim 1-4, is characterized in that, obtains the original intensity data in the brightness adjustment region with reference to row or column, specifically comprises:
Utilize technical grade charge coupled cell CCD sampling instrument to take the reference row or column of the reference picture shown in current screen, and extract the brightness data of position corresponding with each pixel in the reference row or column of described reference picture;
According to multiple brightness adjustment regions that the row and column of predetermined number divides, the brightness data that each brightness adjustment region comprises is averaging, obtains the original intensity data in each brightness adjustment region.
6. a screen intensity adjusting gear, is characterized in that, is applied in liquid crystal indicator, and described device comprises:
First processing unit, for determining each brightness adjustment region in the reference picture that current screen shows, wherein, described brightness adjustment region to divide reference picture according to the row and column of predetermined number to obtain, and described reference picture is the homogeneous image of gray scale;
Second processing unit, for obtaining the original intensity data in the brightness adjustment region with reference to row or column;
3rd processing unit, for original intensity data and each brightness adjustment region position sequence in reference row or column according to the fitting function relation preset, the described brightness adjustment region with reference to row or column, determine with reference to desired level data corresponding to each brightness adjustment region in row or column;
Difference unit, for by the described original intensity data in same brightness adjustment region and described desired level data poor, be compensated brightness data;
Fourth processing unit, for the brightness adjustment value according to each brightness adjustment region in each compensate for brightness data determination current reference row or column in current reference row or column;
Adjustment unit, for according to each brightness adjustment value determined, carries out brightness adjustment to each brightness adjustment region in current row or column.
7. device as claimed in claim 6, is characterized in that, described 3rd determining unit, specifically for:
According to blooming piece concentrating light principles, determine the fitting function relation preset:
wherein, x
1represent the brightness adjustment region position sequence in reference row or column of the reference position of described reference row or column to point midway place, Y
1represent the described brightness data corresponding to each brightness adjustment region, point midway place with reference to the reference position of row or column, a
1, b
1, c
1be respectively the coefficient determining this desired level data function, and,
wherein, x
2represent that the brightness adjustment region of the described point midway with reference to row or column position is to terminal with reference to the position sequence in row or column, Y
2represent the described point midway brightness data that each brightness adjustment region, position is corresponding to terminal with reference to row or column, a
2, b
2, c
2be respectively the coefficient determining this desired level data function;
According to described fitting function relation, matching is carried out to the brightness data with reference to row or column, obtains desired level curve;
The desired level data in all brightness adjustment regions with reference to row or column are determined according to described desired level curve.
8. device as claimed in claim 6, is characterized in that, described fourth processing unit, specifically for:
Described compensate for brightness data are defined as the compensation in each brightness adjustment region in current row or column;
Each compensation determined is averaging, obtains the compensate for brightness mean value of current row or column;
By described compensation and described compensate for brightness mean value poor, obtain the brightness adjustment value with reference to each brightness adjustment region in row or column.
9. device as claimed in claim 6, is characterized in that, described adjustment unit, specifically for:
The brightness adjustment value in each brightness adjustment region described in determining is converted to the voltage change in correspondingly each brightness adjustment region, and adjust according to the voltage of described voltage change to pixel corresponding to each brightness adjustment region, be adjusted to make the brightness in each brightness adjustment region in current reference row or column.
10. the device as described in as arbitrary in claim 6-9, is characterized in that, described second processing unit, specifically for:
Utilize technical grade charge coupled cell CCD sampling instrument to take the reference row or column of the reference picture shown in current screen, and extract the brightness data of position corresponding with each pixel in the reference row or column of described reference picture;
According to multiple brightness adjustment regions that the row and column of predetermined number divides, the brightness data that each brightness adjustment region comprises is averaging, obtains the original intensity data in each brightness adjustment region.
11. 1 kinds of liquid crystal indicators, is characterized in that, comprise as arbitrary in claim 6-10 as described in device.
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| CN201611068047.7A CN106448608B (en) | 2015-03-11 | 2015-03-11 | Screen brightness adjusting method and device aiming at mura problem and television |
| CN201510106382.0A CN104715731B (en) | 2015-03-11 | 2015-03-11 | Screen brightness adjustment method and device and liquid crystal display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105244007A (en) * | 2015-10-30 | 2016-01-13 | 青岛海信电器股份有限公司 | Method and device for generating gray scale correction table of curved surface display screen |
| CN105336298A (en) * | 2015-11-13 | 2016-02-17 | 合一智能科技（深圳）有限公司 | Liquid crystal display device and brightness adjusting method and apparatus thereof |
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| WO2017035910A1 (en) * | 2015-09-02 | 2017-03-09 | 深圳市华星光电技术有限公司 | Brightness compensation method of mura region and method of designing brightness of mura pixel |
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| CN108510956A (en) * | 2018-05-02 | 2018-09-07 | 京东方科技集团股份有限公司 | Image display lightness regulating method, device and the display device of display panel |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN115798396B (en) * | 2022-11-29 | 2024-11-29 | 卡莱特云科技股份有限公司 | LED screen brightness gradient correction method, device and system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060055657A1 (en) * | 2002-07-16 | 2006-03-16 | Sharp Kabushiki Kaisha | Display apparatus, display control method , program and recording medium |
| CN201063938Y (en) * | 2007-07-09 | 2008-05-21 | 青岛海信电器股份有限公司 | Brightness control circuit and display device provided with the circuit |
| US20130027440A1 (en) * | 2011-07-25 | 2013-01-31 | Qualcomm Mems Technologies, Inc. | Enhanced grayscale method for field-sequential color architecture of reflective displays |
| CN103377624A (en) * | 2012-04-17 | 2013-10-30 | 宇龙计算机通信科技(深圳)有限公司 | Method and apparatus for adjusting luminance |
| CN104112433A (en) * | 2013-04-22 | 2014-10-22 | 华为技术有限公司 | Image compensation method and device |
| CN104166258A (en) * | 2014-08-18 | 2014-11-26 | 深圳市华星光电技术有限公司 | Method for setting gray-scale value for LCD panel and LCD |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102117610A (en) * | 2009-12-31 | 2011-07-06 | 瑞轩科技股份有限公司 | Method for adjusting brightness of picture |
| US20130027444A1 (en) * | 2011-07-25 | 2013-01-31 | Qualcomm Mems Technologies, Inc. | Field-sequential color architecture of reflective mode modulator |
| CN103295553B (en) * | 2013-06-26 | 2015-02-18 | 青岛海信信芯科技有限公司 | Direct type backlight luminance compensation method and display device |
| CN103617776B (en) * | 2013-11-27 | 2016-04-13 | 广东威创视讯科技股份有限公司 | Brightness of display screen uniformity adjusting method and system |
| CN104299563B (en) * | 2014-09-05 | 2017-06-30 | 青岛海信电器股份有限公司 | A kind of luminance compensation method and self-emission display apparatus |
-
2015
- 2015-03-11 CN CN201611068047.7A patent/CN106448608B/en active Active
- 2015-03-11 CN CN201510106382.0A patent/CN104715731B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060055657A1 (en) * | 2002-07-16 | 2006-03-16 | Sharp Kabushiki Kaisha | Display apparatus, display control method , program and recording medium |
| CN201063938Y (en) * | 2007-07-09 | 2008-05-21 | 青岛海信电器股份有限公司 | Brightness control circuit and display device provided with the circuit |
| US20130027440A1 (en) * | 2011-07-25 | 2013-01-31 | Qualcomm Mems Technologies, Inc. | Enhanced grayscale method for field-sequential color architecture of reflective displays |
| CN103377624A (en) * | 2012-04-17 | 2013-10-30 | 宇龙计算机通信科技(深圳)有限公司 | Method and apparatus for adjusting luminance |
| CN104112433A (en) * | 2013-04-22 | 2014-10-22 | 华为技术有限公司 | Image compensation method and device |
| CN104166258A (en) * | 2014-08-18 | 2014-11-26 | 深圳市华星光电技术有限公司 | Method for setting gray-scale value for LCD panel and LCD |
Cited By (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017035910A1 (en) * | 2015-09-02 | 2017-03-09 | 深圳市华星光电技术有限公司 | Brightness compensation method of mura region and method of designing brightness of mura pixel |
| CN105244007A (en) * | 2015-10-30 | 2016-01-13 | 青岛海信电器股份有限公司 | Method and device for generating gray scale correction table of curved surface display screen |
| CN105244007B (en) * | 2015-10-30 | 2018-08-21 | 青岛海信电器股份有限公司 | A kind of generation method and device of the grayscale correction chart of camber display screen |
| CN105336298A (en) * | 2015-11-13 | 2016-02-17 | 合一智能科技（深圳）有限公司 | Liquid crystal display device and brightness adjusting method and apparatus thereof |
| CN105336298B (en) * | 2015-11-13 | 2019-01-11 | 合一智能科技（深圳）有限公司 | Liquid crystal display and its brightness adjusting method and device |
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| CN106098000A (en) * | 2016-08-03 | 2016-11-09 | 深圳市华星光电技术有限公司 | Companion's volt circuit and liquid crystal display |
| CN106098000B (en) * | 2016-08-03 | 2018-11-23 | 深圳市华星光电技术有限公司 | With volt circuit and liquid crystal display |
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| CN109844851A (en) * | 2016-09-27 | 2019-06-04 | 堺显示器制品株式会社 | The brightness disproportionation modification method and amendment data generating device of liquid crystal display device |
| CN106898311A (en) * | 2017-03-28 | 2017-06-27 | 广州三星通信技术研究有限公司 | For the screen luminance adjustment method and equipment of electric terminal |
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| CN108510956B (en) * | 2018-05-02 | 2020-01-07 | 京东方科技集团股份有限公司 | Image display brightness adjusting method and device of display panel and display device |
| US11335285B2 (en) | 2018-05-02 | 2022-05-17 | Boe Technology Group Co., Ltd. | Circuit and method for adjusting display brightness level to display image with an improved homogenization effect |
| CN108806576A (en) * | 2018-05-30 | 2018-11-13 | 南京中电熊猫平板显示科技有限公司 | Display device, panel control device and application method |
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| CN106448608A (en) | 2017-02-22 |
| CN106448608B (en) | 2020-05-12 |
| CN104715731B (en) | 2017-03-22 |
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