CN102820021A - Method and device for adjusting consistency of spliced wall - Google Patents
Method and device for adjusting consistency of spliced wall Download PDFInfo
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- CN102820021A CN102820021A CN2012103013606A CN201210301360A CN102820021A CN 102820021 A CN102820021 A CN 102820021A CN 2012103013606 A CN2012103013606 A CN 2012103013606A CN 201210301360 A CN201210301360 A CN 201210301360A CN 102820021 A CN102820021 A CN 102820021A
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Abstract
The invention relates to a method for adjusting consistency of a spliced wall. The method comprises the steps of: respectively obtaining brightness values of red (R), green (G) and blue (B) light sources of display units, and respectively determining R, G and B light source ratios of the display units; judging whether difference between a maximum value and a minimum value of the R, G and B light source ratios of the display units is larger than a first preset threshold value or not; if the difference is larger than the first preset threshold value, judging whether current of a light source corresponding to the minimum value reaches a first limit value or not; if the current does not reach the first limit value, increasing the current of the light source corresponding to the minimum value according to a first preset amplitude till the difference is less than or equal to the first threshold value; if the current reaches the first limit value, judging whether current of a light source corresponding to the maximum value reaches a second limit value or not; and if the current does not reach the second limit value, decreasing the current of the light source corresponding to the maximum value according to a second preset amplitude till the difference is less than or equal to a second preset threshold value. The invention additionally provides a corresponding device according to the method. By adopting the technical scheme, since the current of the light source corresponding to the minimum value is increased and the current of the light corresponding to the maximum value is decreased, the color and brightness consistency of the display units of the spliced wall is guaranteed.
Description
Technical field
The present invention relates to regulate the demonstration field, particularly relate to method and device that the combination consistance is regulated.
Background technology
At present LED projection combination is system dispatches from the factory before or pay the user and will make all display units of putting in order in the wall all in a minimum RGB colour triangle through adjustment light source RGB chromaticity coordinates when using, and adjusts brightness that the electric current of each display unit makes its demonstration simultaneously in less gap scope; But because of having light source ages, decay; The decay property of there are differences simultaneously, system is through the aging decay of after a while operation, and R indivedual or plurality of units is red in the combination, G is green, the B blue-light source changes very fast; The brightness that some display unit individual light source colors occur descends; The brightness of some display unit light source integral colors descends, and the associated change amplitude is bigger, and colour cast or deepening appear in this plurality of units.
In the tradition; LED projection combination is paid the user and is used back system operation a period of time, occurs light source ages and attenuation degree simultaneously when inconsistent, and commissioning engineer or user are through visualization of color deviation and luminance deviation; Rule of thumb value is adjusted the correlation parameter of light source; Color of debugging out and brightness is unified standard not, and everyone there are differences the susceptibility of color and light, and the LED projection wall color that the adjustment back shows is also inconsistent with brightness.
In the tradition, also can remeasure the chromaticity coordinates Adjustment System of each display unit through optical instrument, each display unit is all adjusted with brightness constant current output in a minimum RGB colour triangle, uses the method need expend a plurality of personnel and long period.
Summary of the invention
Based on this, be necessary to be directed against color and the inconsistent problem of brightness that causes owing to light source ages, decay, the method and the device that provide a kind of combination consistance to regulate.
The method that a kind of combination consistance is regulated is characterized in that, comprises the display unit adjustment, and said display unit adjustment comprises step:
Obtain the light-source brightness value of display unit R, G, B respectively, confirm display unit R light source ratio, G light source ratio, B light source ratio respectively according to the light-source brightness standard value of the light-source brightness value of said display unit R, G, B and display unit R, G, B;
Whether the difference of judging maximal value and minimum value in said display unit R light source ratio, G light source ratio, the B light source ratio is greater than first predetermined threshold value;
If the difference of said maximal value and minimum value is greater than first predetermined threshold value; Whether the electric current of judging the minimum value corresponding light source reaches first ultimate value; If not; Increase the electric current of said minimum value corresponding light source according to the first preset amplitude, return the said light-source brightness value step of obtaining display unit R, G, B;
If the electric current of minimum value corresponding light source reaches first ultimate value; Whether the electric current of judging the maximal value corresponding light source reaches second ultimate value; If not, reduce the electric current of said maximal value corresponding light source, return the said light-source brightness value step of obtaining display unit R, G, B according to the second preset amplitude.
The method that above-mentioned combination consistance is regulated when the difference of maximal value and minimum value during greater than first predetermined threshold value, is adjusted through display unit; The minimum value corresponding light source is incremental; Stream is fallen in the maximal value corresponding light source, thereby guarantee the solid colour of each display unit of combination, simple, quick.
Further, when the difference of the maximal value of each display unit and minimum value is less than or equal to first predetermined threshold value, also comprise combination brightness adjustment, said combination brightness adjustment comprises step:
According to the light-source brightness standard value of the light-source brightness value of each the display unit R that obtains respectively, G, B and each display unit R, G, B, confirm the maximal value of R light source ratio in the combination and the difference of minimum value, maximal value and the difference of minimum value, the maximal value of B light source ratio and the difference of minimum value of G light source ratio;
Whether maximal value and the difference of minimum value, maximal value and the difference of minimum value, the maximal value of B light source ratio and the difference of minimum value of G light source ratio of judging R light source ratio simultaneously exist greater than second predetermined threshold value, if do not exist, stop adjustment;
If the difference of maximal value and minimum value of difference or B light source ratio of maximal value and minimum value of difference or G light source ratio of maximal value and minimum value that has R light source ratio is greater than second predetermined threshold value; Whether the electric current of maximal value corresponding light source of judging maximal value, the B light source ratio of maximal value, the G light source ratio of the R light source ratio of combination simultaneously exists the value of reaching capacity; If do not exist; Reduce the electric current of maximal value corresponding light source of maximal value, the B light source ratio of maximal value, the G light source ratio of said R light source ratio simultaneously according to the 3rd preset amplitude; If exist, stop adjustment.
The method that above-mentioned combination consistance is regulated, through first display unit adjustment that the minimum value corresponding light source is incremental, stream is fallen in the maximal value corresponding light source, combination brightness adjustment again, thus the color that guarantees each display unit of combination is consistent with brightness, and simple, quick.
A kind of combination consistance regulating device comprises:
Acquisition module is used for obtaining respectively the light-source brightness value of display unit R, G, B;
The judge module that is connected with acquisition module; Be used for confirming display unit R light source ratio, G light source ratio, B light source ratio respectively that whether the difference of judging maximal value and minimum value in said display unit R light source ratio, G light source ratio, the B light source ratio is greater than first predetermined threshold value according to the light-source brightness standard value of the light-source brightness value of said display unit R, G, B and display unit R, G, B;
The first limit analysis module that is connected with judge module is used to judge whether the electric current of minimum value corresponding light source reaches first ultimate value;
With the incremental module that the first limit analysis module is connected with acquisition module, be used for increasing the electric current of said minimum value corresponding light source according to the first preset amplitude, send to acquisition module and obtain order;
The second limit analysis module that is connected with the first limit analysis module is used to judge whether the electric current of maximal value corresponding light source reaches second ultimate value;
Fall flow module with the second limit analysis module is connected with acquisition module, be used for reducing the electric current of said maximal value corresponding light source, send to acquisition module and obtain order according to the second preset amplitude.
Above-mentioned combination consistance regulating device, through incremental module that the minimum value corresponding light source is incremental, fall flow module stream is fallen in the maximal value corresponding light source, thereby the solid colour of each display unit of assurance combination is simple, quick.
Further, also comprise:
Computing module; Be used for light-source brightness standard value, confirm the maximal value of R light source ratio in the combination and the difference of minimum value, maximal value and the difference of minimum value, the maximal value of B light source ratio and the difference of minimum value of G light source ratio according to the light-source brightness value of each the display unit R that obtains respectively, G, B and each display unit R, G, B;
With the combination judge module of computing module, be used for judging simultaneously whether the maximal value of R light source ratio and the difference of minimum value, maximal value and the difference of minimum value, the maximal value of B light source ratio and the difference of minimum value of G light source ratio exist greater than second predetermined threshold value;
The limit analysis module that is connected with the combination judge module is used for judging simultaneously whether the electric current of maximal value corresponding light source of maximal value, the B light source ratio of maximal value, the G light source ratio of the R light source ratio of combination exists the value of reaching capacity;
What be connected with the limit analysis module second falls flow module, is used for reducing simultaneously according to the 3rd preset amplitude the electric current of maximal value corresponding light source of maximal value, the B light source ratio of maximal value, the G light source ratio of said R light source ratio.
Above-mentioned combination consistance regulating device; Through incremental module that the minimum value corresponding light source is incremental, fall flow module stream is fallen in the maximal value corresponding light source, fall flow module through second again stream is fallen in the maximal value corresponding light source; Thereby the color that guarantees each display unit of combination is consistent with brightness, and is simple, quick.
Description of drawings
Fig. 1 is the schematic flow sheet of the method embodiment one of combination consistance adjusting of the present invention;
Fig. 2 is the schematic flow sheet of the method embodiment two of combination consistance adjusting of the present invention;
Fig. 3 is the structural representation of combination consistance regulating device embodiment one of the present invention;
Fig. 4 is the structural representation of combination consistance regulating device embodiment two of the present invention.
Embodiment
The present invention program wants and can under light source ages or the inconsistent situation of attenuation degree, guarantee each display unit colour consistency of combination, for this reason; The difference of maximal value and the minimum value of the present invention in display unit R light source ratio, G light source ratio, B light source ratio is during greater than first predetermined threshold value; Through the display unit adjustment, the minimum value corresponding light source is incremental, stream is fallen in the maximal value corresponding light source; Thereby guarantee the solid colour of each display unit of combination, simple, quick.Be elaborated below in conjunction with each embodiment.
Each embodiment of method that at first regulates to the combination consistance describes.
Embodiment one
Referring to shown in Figure 1, be the schematic flow sheet of the method embodiment one of combination consistance adjusting of the present invention, comprise step:
Step S101: obtain the light-source brightness value of display unit R, G, B respectively, confirm display unit R light source ratio, G light source ratio, B light source ratio respectively according to the light-source brightness standard value of the light-source brightness value of display unit R, G, B and display unit R, G, B;
Step S102: whether the difference of judging maximal value and minimum value in display unit R light source ratio, G light source ratio, the B light source ratio is greater than first predetermined threshold value, if get into step S103;
Step S103: whether the electric current of judging the minimum value corresponding light source reaches first ultimate value, if not, gets into step S104, if get into step S105;
Step S104: the electric current according to the first preset amplitude increase minimum value corresponding light source, return step S101,
Step S105: whether the electric current of judging the maximal value corresponding light source reaches second ultimate value, if not, gets into step S106, if stop adjustment;
Step S106: the electric current according to the second preset amplitude reduction maximal value corresponding light source, return step S101.
When carrying out factory adjustment color, will make all display units of putting in order in the wall all in a minimum RGB colour triangle, adjust brightness that the electric current of each display unit makes its demonstration simultaneously in less gap scope through adjustment light source RGB chromaticity coordinates with brightness uniformity.At this moment, the light-source brightness value of display unit is a reference value, i.e. the light-source brightness standard value of display unit R, G, B.Preserve the light-source brightness standard value of display unit R, G, B.
At first, obtain the light-source brightness value of display unit R, G, B respectively, confirm display unit R light source ratio, G light source ratio, B light source ratio respectively according to the light-source brightness standard value of the light-source brightness value of display unit R, G, B and display unit R, G, B, as follows:
R light source ratio:
G light source ratio:
B light source ratio:
Wherein, RCurSensor representes R current light source brightness value; RBaseSensor representes R light-source brightness standard value, and GCurSensor representes G current light source brightness value, and GBaseSensor representes G light-source brightness standard value; BCurSensor representes B current light source brightness value, and BBaseSensor representes B light-source brightness standard value.
In this display unit R light source ratio, G light source ratio, B light source ratio, select a maximal value and a minimum value, whether the difference of judging maximal value and minimum value is greater than first predetermined threshold value.Predetermined threshold value can be 2%, also can be made as other values as required.When difference greater than 2% the time, need carry out the display unit adjustment to this display unit.Whether the electric current of judging the minimum value corresponding light source reaches first ultimate value, if do not reach first ultimate value, then increases the electric current of minimum value corresponding light source according to the first preset amplitude.Wherein, first ultimate value and preset amplitude are set as the case may be.After incremental; Obtain the light-source brightness value of display unit R, G, B more respectively; Light-source brightness standard value according to the light-source brightness value of display unit R, G, B and display unit R, G, B is confirmed display unit R light source ratio, G light source ratio, B light source ratio respectively, and whether the difference of judging maximal value and minimum value in display unit R light source ratio, G light source ratio, the B light source ratio is greater than 2%, if still greater than 2%; Then continue incrementally, be less than or equal to 2% up to the difference of maximal value and minimum value.
If, when the difference of maximal value and minimum value greater than 2% the time, minimum value corresponding light source electric current is the value of reaching capacity, then this moment is no longer incremental.Light-source brightness standard value according to the light-source brightness value of the display unit R that obtains, G, B and display unit R, G, B is confirmed display unit R light source ratio, G light source ratio, B light source ratio respectively, judges whether the electric current of maximal value corresponding light source reaches second ultimate value.If do not reach second ultimate value, reduce the electric current of maximal value corresponding light source according to the second preset amplitude, if reach second ultimate value, stop adjustment.Wherein, first ultimate value and second ultimate value are set as the case may be.After falling stream; Return obtaining step; Obtain the light-source brightness value of falling stream back display unit R, G, B respectively, confirm display unit R light source ratio, G light source ratio, B light source ratio respectively according to the light-source brightness standard value of the light-source brightness value of falling stream back display unit R, G, B and display unit R, G, B; If whether the difference of judging maximal value and minimum value in display unit R light source ratio, G light source ratio, the B light source ratio still greater than 2%, then judges whether the electric current of minimum value corresponding light source reach first ultimate value greater than 2%; If no, just incremental, if reach first ultimate value; Whether the electric current of then judging the maximal value corresponding light source reaches second ultimate value; If do not continue to fall stream, so circulation is less than or equal to 2% up to the difference of maximal value and minimum value.When the difference of maximal value and minimum value greater than 2% the time, maximal value corresponding light source electric current is the value of reaching capacity, then no longer falls stream this moment.
Embodiment two
Referring to shown in Figure 2; It is the schematic flow sheet of the method embodiment two of combination consistance adjusting of the present invention; Not only carry out the display unit adjustment, when the difference of all display unit maximal values and minimum value is less than or equal to first predetermined threshold value, also carry out the combination adjustment.Comprise step:
Step S201: obtain the light-source brightness value of display unit R, G, B respectively, confirm display unit R light source ratio, G light source ratio, B light source ratio respectively according to the light-source brightness standard value of the light-source brightness value of display unit R, G, B and display unit R, G, B;
Step S202: whether the difference of judging maximal value and minimum value in display unit R light source ratio, G light source ratio, the B light source ratio greater than first predetermined threshold value, if, get into step S203, if not, get into step S207;
Step S203: whether the electric current of judging the minimum value corresponding light source reaches first ultimate value, if not, gets into step S204, if get into step S205;
Step S204: the electric current according to the first preset amplitude increase minimum value corresponding light source, return step S201,
Step S205: whether the electric current of judging the maximal value corresponding light source reaches second ultimate value, if not, gets into step S206, if stop adjustment;
Step S206: the electric current according to the second preset amplitude reduction maximal value corresponding light source, return step S201;
Step S207:, confirm the maximal value of R light source ratio in the combination and the difference of minimum value, maximal value and the difference of minimum value, the maximal value of B light source ratio and the difference of minimum value of G light source ratio according to the light-source brightness standard value of the light-source brightness value of each the display unit R that obtains respectively, G, B and each display unit R, G, B;
Step S208: judge simultaneously whether the maximal value of R light source ratio and the difference of minimum value, maximal value and the difference of minimum value, the maximal value of B light source ratio and the difference of minimum value of G light source ratio exist greater than second predetermined threshold value; If exist; Get into step S209,, stop adjustment if do not exist;
Step S209: whether the electric current of maximal value corresponding light source of judging maximal value, the B light source ratio of maximal value, the G light source ratio of the R light source ratio of combination simultaneously exists the value of reaching capacity, if do not exist, gets into step S210, if exist, stops adjustment;
Step S210: the electric current of maximal value corresponding light source that reduces maximal value, the B light source ratio of maximal value, the G light source ratio of R light source ratio according to the 3rd preset amplitude simultaneously.
When carrying out factory adjustment color, will make all display units of putting in order in the wall all in a minimum RGB colour triangle, adjust brightness that the electric current of each display unit makes its demonstration simultaneously in less gap scope through adjustment light source RGB chromaticity coordinates with brightness uniformity.At this moment, the light-source brightness value of display unit is a reference value, i.e. the light-source brightness standard value of display unit R, G, B.Preserve the light-source brightness standard value of display unit R, G, B.
At first, obtain the light-source brightness value of display unit R, G, B respectively, confirm display unit R light source ratio, G light source ratio, B light source ratio respectively according to the light-source brightness standard value of the light-source brightness value of display unit R, G, B and display unit R, G, B, as follows:
R light source ratio:
G light source ratio:
B light source ratio:
Wherein, RCurSensor representes R current light source brightness value; RBaseSensor representes R light-source brightness standard value, and GCurSensor representes G current light source brightness value, and GBaseSensor representes G light-source brightness standard value; BCurSensor representes B current light source brightness value, and BBaseSensor representes B light-source brightness standard value.
In this display unit R light source ratio, G light source ratio, B light source ratio, select a maximal value and a minimum value, whether the difference of judging maximal value and minimum value is greater than first predetermined threshold value.First predetermined threshold value can be 2%, also can be made as other values as required.When difference greater than 2% the time, need carry out the display unit adjustment to this display unit.Whether the electric current of judging the minimum value corresponding light source reaches first ultimate value, if do not reach first ultimate value, then increases the electric current of minimum value corresponding light source according to the first preset amplitude.Wherein, first ultimate value and preset amplitude are set as the case may be.After incremental; Obtain the light-source brightness value of display unit R, G, B more respectively; Light-source brightness standard value according to the light-source brightness value of display unit R, G, B and display unit R, G, B is confirmed display unit R light source ratio, G light source ratio, B light source ratio respectively, and whether the difference of judging maximal value and minimum value in display unit R light source ratio, G light source ratio, the B light source ratio is greater than 2%, if still greater than 2%; Then continue incrementally, be less than or equal to 2% up to the difference of maximal value and minimum value.
If, when the difference of maximal value and minimum value greater than 2% the time, minimum value corresponding light source electric current is the value of reaching capacity, then this moment is no longer incremental.Light-source brightness standard value according to the light-source brightness value of the display unit R that obtains, G, B and display unit R, G, B is confirmed display unit R light source ratio, G light source ratio, B light source ratio respectively, judges whether the electric current of maximal value corresponding light source reaches second ultimate value.If do not reach second ultimate value, reduce the electric current of maximal value corresponding light source according to the second preset amplitude, if reach second ultimate value, stop adjustment.Wherein, first ultimate value and second ultimate value are set as the case may be.After falling stream; Return obtaining step; Obtain the light-source brightness value of falling stream back display unit R, G, B respectively, confirm display unit R light source ratio, G light source ratio, B light source ratio respectively according to the light-source brightness standard value of the light-source brightness value of falling stream back display unit R, G, B and display unit R, G, B; If whether the difference of judging maximal value and minimum value in display unit R light source ratio, G light source ratio, the B light source ratio still greater than 2%, then judges whether the electric current of minimum value corresponding light source reach first ultimate value greater than 2%; If no, just incremental, if reach first ultimate value; Whether the electric current of then judging the maximal value corresponding light source reaches second ultimate value; If do not continue to fall stream, so circulation is less than or equal to 2% up to the difference of maximal value and minimum value.When the difference of maximal value and minimum value greater than 2% the time, maximal value corresponding light source electric current is the value of reaching capacity, then no longer falls stream this moment.
When all display units do not need the display unit adjustment; When promptly the difference of the maximal value of all display units and minimum value is less than or equal to first predetermined threshold value; Obtain the light-source brightness value of all display unit R, G, B, confirm maximal value and the minimum value of maximal value and minimum value, the G light source ratio of R light source ratio in the combination, the maximal value and the minimum value of B light source ratio according to the light-source brightness standard value of the light-source brightness value of each display unit R, G, B and display unit R, G, B respectively.Thereby obtain the maximal value of R light source ratio in the combination and the difference of minimum value, maximal value and the difference of minimum value, the maximal value of B light source ratio and the difference of minimum value of G light source ratio.
Judge simultaneously R light source ratio maximal value and minimum value difference whether greater than the difference of the maximal value of second predetermined threshold value, G light source ratio and minimum value whether greater than the difference of the maximal value of second predetermined threshold value, B light source ratio and minimum value whether greater than second predetermined threshold value; If do not have situation in R, G, the B light source greater than second predetermined threshold value; Then the whole brightness within the walls of expression is consistent, does not need adjustment.If exist; Judge electric current electric current electric current value of reaching capacity whether of the maximal value corresponding light source of the value of reaching capacity, B light source ratio whether of the maximal value corresponding light source of the value of reaching capacity, G light source ratio whether of maximal value corresponding light source of the R light source ratio of combination simultaneously; If there is one of them value of reaching capacity; Then stop adjustment; If equal values of reaching capacity not then reduces the electric current of maximal value corresponding light source of electric current, B light source ratio of maximal value corresponding light source of electric current, the G light source ratio of the maximal value corresponding light source of R light source ratio simultaneously according to the 3rd preset amplitude.Wherein, second predetermined threshold value can be 5%, also can be made as other values.
In like manner can get, whether whether whether the difference that also can judge maximal value and the minimum value of R light source ratio successively exist the difference greater than the maximal value of second predetermined threshold value, G light source ratio and minimum value to exist greater than the maximal value of second predetermined threshold value, B light source ratio and the difference of minimum value exists greater than second predetermined threshold value.
When the difference of the maximal value of R light source ratio and minimum value greater than second predetermined threshold value; Then judge electric current electric current electric current value of reaching capacity whether of the maximal value corresponding light source of the value of reaching capacity, B light source ratio whether of the maximal value corresponding light source of the value of reaching capacity, G light source ratio whether of maximal value corresponding light source of the R light source ratio of combination simultaneously; If there is one of them value of reaching capacity; Whether the difference of maximal value and minimum value that then gets into G light source ratio is greater than the judgement of second predetermined threshold value; If equal values of reaching capacity not then reduces the electric current of maximal value corresponding light source of electric current, B light source ratio of maximal value corresponding light source of electric current, the G light source ratio of the maximal value corresponding light source of R light source ratio simultaneously according to preset amplitude.
When the difference of the maximal value of G light source ratio and minimum value greater than second predetermined threshold value; Then judge electric current electric current electric current value of reaching capacity whether of the maximal value corresponding light source of the value of reaching capacity, B light source ratio whether of the maximal value corresponding light source of the value of reaching capacity, G light source ratio whether of maximal value corresponding light source of the R light source ratio of combination simultaneously; If there is one of them value of reaching capacity; Whether the difference of maximal value and minimum value that then gets into B light source ratio is greater than the judgement of second predetermined threshold value; If equal values of reaching capacity not then reduces the electric current of maximal value corresponding light source of electric current, B light source ratio of maximal value corresponding light source of electric current, the G light source ratio of the maximal value corresponding light source of R light source ratio simultaneously according to preset amplitude.
When the difference of the maximal value of B light source ratio and minimum value greater than second predetermined threshold value; Then judge electric current electric current electric current value of reaching capacity whether of the maximal value corresponding light source of the value of reaching capacity, B light source ratio whether of the maximal value corresponding light source of the value of reaching capacity, G light source ratio whether of maximal value corresponding light source of the R light source ratio of combination simultaneously; If there is one of them value of reaching capacity; Then stop adjustment; If equal values of reaching capacity not then reduces the electric current of maximal value corresponding light source of electric current, B light source ratio of maximal value corresponding light source of electric current, the G light source ratio of the maximal value corresponding light source of R light source ratio simultaneously according to preset amplitude.
Certainly, R, G, B light source adjustment order are unrestricted, can adjust G earlier, adjust R, B etc. again.
According to the method that the invention described above combination consistance is regulated, the present invention provides a kind of combination consistance regulating device, is elaborated with regard to specific embodiment below:
Embodiment one
Referring to shown in Figure 3, be the structural representation of combination consistance regulating device embodiment one of the present invention, comprising:
The judge module 302 that is connected with acquisition module 301; Be used for confirming display unit R light source ratio, G light source ratio, B light source ratio respectively that whether the difference of judging maximal value and minimum value in said display unit R light source ratio, G light source ratio, the B light source ratio is greater than first predetermined threshold value according to the light-source brightness standard value of the light-source brightness value of said display unit R, G, B and display unit R, G, B;
The first limit analysis module 303 that is connected with judge module 302 is used to judge whether the electric current of minimum value corresponding light source reaches first ultimate value;
With the incremental module 304 that the first limit analysis module 303 is connected with acquisition module 301, be used for increasing the electric current of said minimum value corresponding light source according to the first preset amplitude, send to acquisition module and obtain order;
The second limit analysis module 305 that is connected with the first limit analysis module 303 is used to judge whether the electric current of maximal value corresponding light source reaches second ultimate value;
The present invention also comprises memory module, is used for the light-source brightness standard value of storage and display unit R, G, B.
When carrying out factory adjustment color, will make all display units of putting in order in the wall all in a minimum RGB colour triangle, adjust brightness that the electric current of each display unit makes its demonstration simultaneously in less gap scope through adjustment light source RGB chromaticity coordinates with brightness uniformity.At this moment, the light-source brightness value of display unit is a reference value, i.e. the light-source brightness standard value of display unit R, G, B.Preserve the light-source brightness standard value of display unit R, G, B.
At first; Acquisition module 301 obtains the light-source brightness value of display unit R, G, B respectively; Judge module 302 is confirmed display unit R light source ratio, G light source ratio, B light source ratio respectively according to the light-source brightness standard value of the light-source brightness value of display unit R, G, B and display unit R, G, B, as follows:
R light source ratio:
G light source ratio:
B light source ratio:
Wherein, RCurSensor representes R current light source brightness value; RBaseSensor representes R light-source brightness standard value, and GCurSensor representes G current light source brightness value, and GBaseSensor representes G light-source brightness standard value; BCurSensor representes B current light source brightness value, and BBaseSensor representes B light-source brightness standard value.
Judge module 302 is selected a maximal value and a minimum value in this display unit R light source ratio, G light source ratio, B light source ratio, whether the difference of judging maximal value and minimum value is greater than first predetermined threshold value.First predetermined threshold value can be 2%, also can be made as other values as required.When difference greater than 2% the time, need carry out the display unit adjustment to this display unit.The first limit analysis module 303 judges whether the electric current of minimum value corresponding light source reaches first ultimate value, if do not reach first ultimate value, then incremental module 304 increases the electric current of minimum value corresponding light source according to the first preset amplitude.Wherein, first ultimate value and preset amplitude are set as the case may be.After incremental; Acquisition module 301 obtains the light-source brightness value of display unit R, G, B respectively again; Judge module 302 is confirmed display unit R light source ratio, G light source ratio, B light source ratio respectively according to the light-source brightness standard value of the light-source brightness value of display unit R, G, B and display unit R, G, B; Whether the difference of judging maximal value and minimum value in display unit R light source ratio, G light source ratio, the B light source ratio is greater than 2%; If still greater than 2%, then incremental module 304 continues incremental, is less than or equal to 2% up to the difference of maximal value and minimum value.
If, when the difference of maximal value and minimum value greater than 2% the time, minimum value corresponding light source electric current is the value of reaching capacity, then this moment is no longer incremental.Light-source brightness standard value according to the light-source brightness value of the display unit R that obtains, G, B and display unit R, G, B is confirmed display unit R light source ratio, G light source ratio, B light source ratio respectively, and the second limit analysis module 305 judges whether the electric current of maximal value corresponding light source reaches second ultimate value.If do not reach second ultimate value, fall flow module 306 and reduce the electric current of maximal value corresponding light source according to the second preset amplitude, if reach second ultimate value, stop adjustment.Wherein, first ultimate value and second ultimate value are set as the case may be.After falling stream; Acquisition module 301 obtains the light-source brightness value of falling stream back display unit R, G, B respectively, and the light-source brightness standard value of the light-source brightness value of display unit R, G, B and display unit R, G, B was confirmed display unit R light source ratio, G light source ratio, B light source ratio respectively after judge module 302 bases were fallen and flowed; Whether the difference of judging maximal value and minimum value in display unit R light source ratio, G light source ratio, the B light source ratio is greater than 2%, if still greater than 2%, then the first limit analysis module 303 judges whether the electric current of minimum value corresponding light source reaches first ultimate value; If do not have; Incremental module 304 is just incremental, if reach first ultimate value, then the second limit analysis module 305 judges whether the electric current of maximal value corresponding light source reaches second ultimate value; If do not have; Fall flow module 306 and continue to fall stream, so circulation is less than or equal to 2% up to the difference of maximal value and minimum value.When the difference of maximal value and minimum value greater than 2% the time, maximal value corresponding light source electric current is the value of reaching capacity, then no longer falls stream this moment.
Embodiment two
Referring to shown in Figure 4, be the structural representation of combination consistance regulating device embodiment two of the present invention, not only carry out the display unit adjustment,, the difference of all display unit maximal values and minimum value also carries out the combination adjustment when being less than or equal to first predetermined threshold value.Comprise:
The judge module 402 that is connected with acquisition module 401; Be used for confirming display unit R light source ratio, G light source ratio, B light source ratio respectively that whether the difference of judging maximal value and minimum value in said display unit R light source ratio, G light source ratio, the B light source ratio is greater than first predetermined threshold value according to the light-source brightness standard value of the light-source brightness value of said display unit R, G, B and display unit R, G, B;
The first limit analysis module 403 that is connected with judge module 402 is used to judge whether the electric current of minimum value corresponding light source reaches first ultimate value;
With the incremental module 404 that the first limit analysis module 403 is connected with acquisition module 401, be used for increasing the electric current of said minimum value corresponding light source according to the first preset amplitude, send to acquisition module and obtain order;
The second limit analysis module 405 that is connected with the first limit analysis module 403 is used to judge whether the electric current of maximal value corresponding light source reaches second ultimate value;
The computing module 407 that is connected with judge module 402; Be used for light-source brightness standard value, confirm the maximal value of R light source ratio in the combination and the difference of minimum value, maximal value and the difference of minimum value, the maximal value of B light source ratio and the difference of minimum value of G light source ratio according to the light-source brightness value of each the display unit R that obtains respectively, G, B and each display unit R, G, B;
With the combination judge module 408 of computing module, be used for judging simultaneously whether the maximal value of R light source ratio and the difference of minimum value, maximal value and the difference of minimum value, the maximal value of B light source ratio and the difference of minimum value of G light source ratio exist greater than second predetermined threshold value;
The limit analysis module 409 that is connected with the combination judge module is used for judging simultaneously whether the electric current of maximal value corresponding light source of maximal value, the B light source ratio of maximal value, the G light source ratio of the R light source ratio of combination exists the value of reaching capacity;
What be connected with the limit analysis module second falls flow module 410, is used for reducing simultaneously according to the 3rd preset amplitude the electric current of maximal value corresponding light source of maximal value, the B light source ratio of maximal value, the G light source ratio of said R light source ratio.
The present invention also comprises memory module, is used for the light-source brightness standard value of storage and display unit R, G, B.
When carrying out factory adjustment color, will make all display units of putting in order in the wall all in a minimum RGB colour triangle, adjust brightness that the electric current of each display unit makes its demonstration simultaneously in less gap scope through adjustment light source RGB chromaticity coordinates with brightness uniformity.At this moment, the light-source brightness value of display unit is a reference value, i.e. the light-source brightness standard value of display unit R, G, B.Preserve the light-source brightness standard value of display unit R, G, B.
At first; Acquisition module 401 obtains the light-source brightness value of display unit R, G, B respectively; Judge module 402 is confirmed display unit R light source ratio, G light source ratio, B light source ratio respectively according to the light-source brightness standard value of the light-source brightness value of display unit R, G, B and display unit R, G, B, as follows:
R light source ratio:
G light source ratio:
B light source ratio:
Wherein, RCurSensor representes R current light source brightness value; RBaseSensor representes R light-source brightness standard value, and GCurSensor representes G current light source brightness value, and GBaseSensor representes G light-source brightness standard value; BCurSensor representes B current light source brightness value, and BBaseSensor representes B light-source brightness standard value.
Judge module 402 is selected a maximal value and a minimum value in this display unit R light source ratio, G light source ratio, B light source ratio, whether the difference of judging maximal value and minimum value is greater than first predetermined threshold value.First predetermined threshold value can be 2%, also can be made as other values as required.When difference greater than 2% the time, need carry out the display unit adjustment to this display unit.The first limit analysis module 403 judges whether the electric current of minimum value corresponding light source reaches first ultimate value, if do not reach first ultimate value, then incremental module 404 increases the electric current of minimum value corresponding light source according to the first preset amplitude.Wherein, first ultimate value and preset amplitude are set as the case may be.After incremental; Acquisition module 401 obtains the light-source brightness value of display unit R, G, B respectively again; Judge module 402 is confirmed display unit R light source ratio, G light source ratio, B light source ratio respectively according to the light-source brightness standard value of the light-source brightness value of display unit R, G, B and display unit R, G, B; Whether the difference of judging maximal value and minimum value in display unit R light source ratio, G light source ratio, the B light source ratio is greater than 2%; If still greater than 2%, then incremental module 404 continues incremental, is less than or equal to 2% up to the difference of maximal value and minimum value.
If, when the difference of maximal value and minimum value greater than 2% the time, minimum value corresponding light source electric current is the value of reaching capacity, then this moment is no longer incremental.Light-source brightness standard value according to the light-source brightness value of the display unit R that obtains, G, B and display unit R, G, B is confirmed display unit R light source ratio, G light source ratio, B light source ratio respectively, and the second limit analysis module 405 judges whether the electric current of maximal value corresponding light source reaches second ultimate value.If do not reach second ultimate value, fall flow module 406 and reduce the electric current of maximal value corresponding light source according to the second preset amplitude, if reach second ultimate value, stop adjustment.Wherein, first ultimate value and second ultimate value are set as the case may be.After falling stream; Acquisition module 401 obtains the light-source brightness value of falling stream back display unit R, G, B respectively, and the light-source brightness standard value of the light-source brightness value of display unit R, G, B and display unit R, G, B was confirmed display unit R light source ratio, G light source ratio, B light source ratio respectively after judge module 402 bases were fallen and flowed; Whether the difference of judging maximal value and minimum value in display unit R light source ratio, G light source ratio, the B light source ratio is greater than 2%, if still greater than 2%, then the first limit analysis module 403 judges whether the electric current of minimum value corresponding light source reaches first ultimate value; If do not have; Incremental module 404 is just incremental, if reach first ultimate value, then the second limit analysis module 405 judges whether the electric current of maximal value corresponding light source reaches second ultimate value; If do not have; Fall flow module 406 and continue to fall stream, so circulation is less than or equal to 2% up to the difference of maximal value and minimum value.When the difference of maximal value and minimum value greater than 2% the time, maximal value corresponding light source electric current is the value of reaching capacity, then no longer falls stream this moment.
When all display units do not need the display unit adjustment; When promptly the difference of the maximal value of all display units and minimum value is less than or equal to first predetermined threshold value; Obtain the light-source brightness value of all display unit R, G, B, computing module 407 is confirmed maximal value and the minimum value of maximal value and minimum value, the G light source ratio of R light source ratio in the combination, the maximal value and the minimum value of B light source ratio respectively according to the light-source brightness standard value of the light-source brightness value of each display unit R, G, B and display unit R, G, B.Thereby obtain the maximal value of R light source ratio in the combination and the difference of minimum value, maximal value and the difference of minimum value, the maximal value of B light source ratio and the difference of minimum value of G light source ratio.
Judge module 408 judge simultaneously R light source ratio maximal value and minimum value difference whether greater than the difference of the maximal value of second predetermined threshold value, G light source ratio and minimum value whether greater than the difference of the maximal value of second predetermined threshold value, B light source ratio and minimum value whether greater than second predetermined threshold value; If do not have situation in R, G, the B light source greater than second predetermined threshold value; Then the whole brightness within the walls of expression is consistent, does not need adjustment.If exist; Limit analysis module 409 is judged electric current electric current electric current value of reaching capacity whether of the maximal value corresponding light source of the value of reaching capacity, B light source ratio whether of the maximal value corresponding light source of the value of reaching capacity, G light source ratio whether of maximal value corresponding light source of the R light source ratio of combination simultaneously; If there is one of them value of reaching capacity; Then stop adjustment; If equal values of reaching capacity not, then second falls flow module 410 reduces electric current, the G light source ratio of the maximal value corresponding light source of R light source ratio simultaneously according to the 3rd preset amplitude the electric current of maximal value corresponding light source of electric current, B light source ratio of maximal value corresponding light source.Wherein, second predetermined threshold value can be 5%, also can be made as other values.
In like manner can get, whether whether whether the difference of also can the second combination judge module judging maximal value and the minimum value of R light source ratio successively exist the difference greater than the maximal value of second predetermined threshold value, G light source ratio and minimum value to exist greater than the maximal value of second predetermined threshold value, B light source ratio and the difference of minimum value exists greater than second predetermined threshold value.
When the difference of the maximal value of R light source ratio and minimum value greater than second predetermined threshold value; Then the 4th limit analysis module is judged electric current electric current electric current value of reaching capacity whether of the maximal value corresponding light source of the value of reaching capacity, B light source ratio whether of the maximal value corresponding light source of the value of reaching capacity, G light source ratio whether of maximal value corresponding light source of the R light source ratio of combination simultaneously; If there is one of them value of reaching capacity; Whether the difference of maximal value and minimum value that then gets into G light source ratio is greater than the judgement of second predetermined threshold value; If equal values of reaching capacity not, then the 3rd falls flow module reduces electric current, the G light source ratio of the maximal value corresponding light source of R light source ratio simultaneously according to preset amplitude the electric current of maximal value corresponding light source of electric current, B light source ratio of maximal value corresponding light source.
When the difference of the maximal value of G light source ratio and minimum value greater than second predetermined threshold value; Then the 4th limit analysis module is judged electric current electric current electric current value of reaching capacity whether of the maximal value corresponding light source of the value of reaching capacity, B light source ratio whether of the maximal value corresponding light source of the value of reaching capacity, G light source ratio whether of maximal value corresponding light source of the R light source ratio of combination simultaneously; If there is one of them value of reaching capacity; Whether the difference of maximal value and minimum value that then gets into B light source ratio is greater than the judgement of second predetermined threshold value; If equal values of reaching capacity not, then the 3rd falls flow module reduces electric current, the G light source ratio of the maximal value corresponding light source of R light source ratio simultaneously according to preset amplitude the electric current of maximal value corresponding light source of electric current, B light source ratio of maximal value corresponding light source.
When the difference of the maximal value of B light source ratio and minimum value greater than second predetermined threshold value; Then the 4th limit analysis module is judged electric current electric current electric current value of reaching capacity whether of the maximal value corresponding light source of the value of reaching capacity, B light source ratio whether of the maximal value corresponding light source of the value of reaching capacity, G light source ratio whether of maximal value corresponding light source of the R light source ratio of combination simultaneously; If there is one of them value of reaching capacity; Then stop adjustment; If equal values of reaching capacity not, then the 3rd falls flow module reduces electric current, the G light source ratio of the maximal value corresponding light source of R light source ratio simultaneously according to preset amplitude the electric current of maximal value corresponding light source of electric current, B light source ratio of maximal value corresponding light source.
Certainly, R, G, B light source adjustment order are unrestricted, can adjust G earlier, adjust R, B etc. again.
The above embodiment has only expressed several kinds of embodiments of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the present invention's design, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with accompanying claims.
Claims (10)
1. the method that the combination consistance is regulated is characterized in that, comprises the display unit adjustment, and said display unit adjustment comprises step:
Obtain the light-source brightness value of display unit R, G, B respectively, confirm display unit R light source ratio, G light source ratio, B light source ratio respectively according to the light-source brightness standard value of the light-source brightness value of said display unit R, G, B and display unit R, G, B;
Whether the difference of judging maximal value and minimum value in said display unit R light source ratio, G light source ratio, the B light source ratio is greater than first predetermined threshold value;
If the difference of said maximal value and minimum value is greater than first predetermined threshold value; Whether the electric current of judging the minimum value corresponding light source reaches first ultimate value; If not; Increase the electric current of said minimum value corresponding light source according to the first preset amplitude, return the said light-source brightness value step of obtaining display unit R, G, B;
If the electric current of minimum value corresponding light source reaches first ultimate value; Whether the electric current of judging the maximal value corresponding light source reaches second ultimate value; If not, reduce the electric current of said maximal value corresponding light source, return the said light-source brightness value step of obtaining display unit R, G, B according to the second preset amplitude.
2. the method that combination consistance according to claim 1 is regulated; It is characterized in that; When the difference of the maximal value of each display unit and minimum value is less than or equal to first predetermined threshold value, also comprise combination brightness adjustment, said combination brightness adjustment comprises step:
According to the light-source brightness standard value of the light-source brightness value of each the display unit R that obtains respectively, G, B and each display unit R, G, B, confirm the maximal value of R light source ratio in the combination and the difference of minimum value, maximal value and the difference of minimum value, the maximal value of B light source ratio and the difference of minimum value of G light source ratio;
Whether maximal value and the difference of minimum value, maximal value and the difference of minimum value, the maximal value of B light source ratio and the difference of minimum value of G light source ratio of judging R light source ratio simultaneously exist greater than second predetermined threshold value, if do not exist, stop adjustment;
If the difference of maximal value and minimum value of difference or B light source ratio of maximal value and minimum value of difference or G light source ratio of maximal value and minimum value that has R light source ratio is greater than second predetermined threshold value; Whether the electric current of maximal value corresponding light source of judging maximal value, the B light source ratio of maximal value, the G light source ratio of the R light source ratio of combination simultaneously exists the value of reaching capacity; If do not exist; Reduce the electric current of maximal value corresponding light source of maximal value, the B light source ratio of maximal value, the G light source ratio of said R light source ratio simultaneously according to the 3rd preset amplitude; If exist, stop adjustment.
3. the method that combination consistance according to claim 1 is regulated; It is characterized in that; When the difference of the maximal value of each display unit and minimum value is less than or equal to first predetermined threshold value, also comprise combination brightness adjustment, said combination brightness adjustment comprises step:
According to the light-source brightness standard value of the light-source brightness value of each the display unit R that obtains respectively, G, B and each display unit R, G, B, confirm the maximal value of R light source ratio in the combination and the difference of minimum value, maximal value and the difference of minimum value, the maximal value of B light source ratio and the difference of minimum value of G light source ratio;
Whether the difference of maximal value and minimum value of difference, B light source ratio of maximal value and minimum value of difference, G light source ratio of judging maximal value and the minimum value of R light source ratio successively is greater than second predetermined threshold value; If not; Stop adjustment, if whether the electric current of maximal value corresponding light source of judging maximal value, the B light source ratio of maximal value, the G light source ratio of the R light source ratio of combination simultaneously exists reaches the 4th ultimate value; If do not exist; Reduce the electric current of maximal value corresponding light source of maximal value, the B light source ratio of maximal value, the G light source ratio of said R light source ratio according to the 4th preset amplitude simultaneously,, stop adjustment if exist.
4. the method for regulating according to claim 1 or 2 or 3 described combination consistance is characterized in that, each display unit simultaneously or carry out the display unit adjustment successively.
5. the method for regulating according to claim 1 or 2 or 3 described combination consistance; It is characterized in that; The ratio that said R light source ratio is R light-source brightness value and R light-source brightness standard value, G light source ratio are that ratio, the B light source ratio of G light-source brightness value and G light-source brightness standard value is the ratio of B light-source brightness value and B light-source brightness standard value; Said first predetermined threshold value is 2%, and said second predetermined threshold value is 5%.
6. a combination consistance regulating device is characterized in that, comprising:
Acquisition module is used for obtaining respectively the light-source brightness value of display unit R, G, B;
The judge module that is connected with acquisition module; Be used for confirming display unit R light source ratio, G light source ratio, B light source ratio respectively that whether the difference of judging maximal value and minimum value in said display unit R light source ratio, G light source ratio, the B light source ratio is greater than first predetermined threshold value according to the light-source brightness standard value of the light-source brightness value of said display unit R, G, B and display unit R, G, B;
The first limit analysis module that is connected with judge module is used to judge whether the electric current of minimum value corresponding light source reaches first ultimate value;
With the incremental module that the first limit analysis module is connected with acquisition module, be used for increasing the electric current of said minimum value corresponding light source according to the first preset amplitude, send to acquisition module and obtain order;
The second limit analysis module that is connected with the first limit analysis module is used to judge whether the electric current of maximal value corresponding light source reaches second ultimate value;
Fall flow module with the second limit analysis module is connected with acquisition module, be used for reducing the electric current of said maximal value corresponding light source, send to acquisition module and obtain order according to the second preset amplitude.
7. combination consistance regulating device according to claim 6 is characterized in that, also comprises:
Computing module; Be used for light-source brightness standard value, confirm the maximal value of R light source ratio in the combination and the difference of minimum value, maximal value and the difference of minimum value, the maximal value of B light source ratio and the difference of minimum value of G light source ratio according to the light-source brightness value of each the display unit R that obtains respectively, G, B and each display unit R, G, B;
With the combination judge module of computing module, be used for judging simultaneously whether the maximal value of R light source ratio and the difference of minimum value, maximal value and the difference of minimum value, the maximal value of B light source ratio and the difference of minimum value of G light source ratio exist greater than second predetermined threshold value;
The limit analysis module that is connected with the combination judge module is used for judging simultaneously whether the electric current of maximal value corresponding light source of maximal value, the B light source ratio of maximal value, the G light source ratio of the R light source ratio of combination exists the value of reaching capacity;
What be connected with the limit analysis module second falls flow module, is used for reducing simultaneously according to the 3rd preset amplitude the electric current of maximal value corresponding light source of maximal value, the B light source ratio of maximal value, the G light source ratio of said R light source ratio.
8. combination consistance regulating device according to claim 6 is characterized in that, also comprises:
Second computing module: be used for light-source brightness standard value, confirm the maximal value of R light source ratio in the combination and the difference of minimum value, maximal value and the difference of minimum value, the maximal value of B light source ratio and the difference of minimum value of G light source ratio according to the light-source brightness value of each the display unit R that obtains respectively, G, B and each display unit R, G, B;
With the second combination judge module of second computing module, be used for judging successively whether the maximal value of R light source ratio and the difference of minimum value, maximal value and the difference of minimum value, the maximal value of B light source ratio and the difference of minimum value of G light source ratio exist greater than second predetermined threshold value;
The 4th limit analysis module that is connected with the second combination judge module, whether the electric current of maximal value corresponding light source that is used for judging simultaneously maximal value, the B light source ratio of maximal value, the G light source ratio of the R light source ratio of combination exists reaches the 4th ultimate value;
What be connected with the 4th limit analysis module the 3rd falls flow module, is used for reducing simultaneously according to the 4th preset amplitude the electric current of maximal value corresponding light source of maximal value, the B light source ratio of maximal value, the G light source ratio of said R light source ratio.
9. according to claim 6 or 7 or 8 described combination consistance regulating devices, it is characterized in that, also comprise: memory module is used for the light-source brightness standard value of storage and display unit R, G, B.
10. according to claim 6 or 7 or 8 described combination consistance regulating devices, it is characterized in that each display unit simultaneously or carry out the display unit adjustment successively.
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