CN104485068A - Luminance-chrominance correction method and system of LED (Light Emitting Diode) display screen - Google Patents
Luminance-chrominance correction method and system of LED (Light Emitting Diode) display screen Download PDFInfo
- Publication number
- CN104485068A CN104485068A CN201410735159.8A CN201410735159A CN104485068A CN 104485068 A CN104485068 A CN 104485068A CN 201410735159 A CN201410735159 A CN 201410735159A CN 104485068 A CN104485068 A CN 104485068A
- Authority
- CN
- China
- Prior art keywords
- batch
- lamp point
- lamp
- angle value
- point
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention provides a luminance-chrominance correction method of an LED (Light Emitting Diode) display screen and a luminance-chrominance correction system of the LED display screen. The method comprises obtaining the configuration file of a to-be-corrected LED cabinet of the LED display screen, wherein the configuration file comprises the batch information of lamp points of each batch on the to-be-corrected LED cabinet; according to the use time of the to-be-corrected LED cabinet and the batch information of the lamp points of each batch, calculating the correction coefficient of the lamp points of each batch; uploading the correction coefficient of the lamp points of each batch to the to-be-corrected LED cabinet for correction on the luminance and the chrominance of the lamp points of the to-be-corrected LED cabinet. According to the method and the system, as the correction coefficient of the lamp points of each batch is determined by using the batch information of the lamp points of each batch and the use time of the to-be-corrected LED cabinet, the correction coefficient can be conveniently and rapidly determined; moreover, image collection equipment is not needed to determine the correction coefficient of the lamp points; therefore the LED display screen has a better display effect, and the problem of luminance and chrominance differences between different batches of LEDs is effectively solved.
Description
Technical field
The present invention relates to display technique field, particularly relate to the chromaticity correction method after the mixed lamp of a kind of light emitting diode (Light EmittingDiode, LED) and device.
Background technology
As everyone knows, the LED display module such as LED lamp panel, LED box, LED display are combined by a fairly large number of LED, after making the combinations such as the LED of different colours, different parameters, best display effect can be reached, need first LED to be mixed, in brightness, wavelength lamp parameter, reach equiblibrium mass distribution to the LED on LED module.Wherein, LED is mixed can be described as mixed lamp.
Since 21 century, colored display industry is developed on an unprecedented scale, and LED display has also spread all over central plaza, the commercial mansion in all cities.LED display is distinctive bright in luster with it, and visual high, the advantages such as low-power consumption enjoy people's favorable comment.But due to domestic LED display manufacturing technology level comparatively underground, the LED lamp tube self produced is made to there is larger bright chroma difference, such as same production batch LED, its brightness may differ nearly 50%, colourity may differ 15 to 20nm, and the display screen that multiple different production batch LED splices, its bright chroma difference is just more serious, these bright chroma differences are intolerable for human eye vision, so the bright chroma difference in order to reduce LED display, need to carry out bright chroma adjustment to LED display.
In the prior art, it is long that LED corrects the consumed time to the bright chroma of lamp point after mixing lamp, causes the display effect of LED display bad, not can solve the bright chroma difference problem between different batches LED.
Summary of the invention
In view of this, the invention provides a kind of bright chroma bearing calibration and system of LED display, LED display has good display effect, and efficient solution is determined the bright chroma difference problem between different batches LED.
The bright chroma bearing calibration of a kind of LED display that the embodiment of the present invention provides, comprising:
Obtain the configuration file of the LED box to be corrected of LED display, in described configuration file, comprise the batch information of the lamp point of each batch in described LED box to be corrected;
The correction coefficient of the lamp point of each batch described is calculated according to the batch information of the service time of described LED box to be corrected and the lamp point of each batch described;
The correction coefficient of the lamp of each batch described point is uploaded to described LED box to be corrected to correct for the bright chroma of described LED box lamp point to be corrected.The bright chroma corrective system of a kind of LED display that the embodiment of the present invention provides, comprising:
Acquisition module, for obtaining the configuration file of the LED box to be corrected of LED display, comprises the batch information of the lamp point of each batch in described LED box to be corrected in described configuration file;
Computing module, for obtain the lamp point of each batch described at described acquisition module batch information after, calculate the correction coefficient of the lamp point of each batch described according to the batch information of the service time of described LED box to be corrected and the lamp point of each batch described;
Upper transmission module, for obtain each lamp point described at described computing module correction coefficient after, the correction coefficient of the lamp of each batch described point is uploaded to described LED box to be corrected and corrects for the bright chroma of described LED box lamp point to be corrected.
As can be seen from the above technical solutions, the embodiment of the present invention has the following advantages:
Obtain the configuration file of the LED box to be corrected of LED display, comprise the batch information of the lamp point of each batch in this LED box to be corrected in this configuration file, calculate the correction coefficient of the lamp point of this each batch according to the batch information of the service time of this LED box to be corrected and the lamp point of this each batch; And the correction coefficient of the lamp of this each batch point is uploaded to this LED box to be corrected and corrects for the bright chroma of this LED box lamp point to be corrected, by utilizing the correction coefficient determining the lamp point of each batch service time of the batch information of the lamp of each batch point and LED box to be corrected, can correction coefficient be determined easily and fast and complete correction, make LED display have good display effect, efficient solution is determined the bright chroma difference problem between different batches LED.
For above and other object of the present invention, feature and advantage can be become apparent, preferred embodiment cited below particularly, and coordinate institute's accompanying drawings, be described in detail below.
Accompanying drawing explanation
Fig. 1 is a schematic diagram of the bright chroma bearing calibration of a kind of LED display in the embodiment of the present invention;
Fig. 2 is another schematic diagram of the bright chroma bearing calibration of a kind of LED display in the embodiment of the present invention;
Fig. 3 is another schematic diagram of the bright chroma bearing calibration of a kind of LED display in the embodiment of the present invention;
Fig. 4 is another schematic diagram of the bright chroma bearing calibration of a kind of LED display in the embodiment of the present invention;
Fig. 5 is the structural representation of the bright chroma corrective system of a kind of LED display in the embodiment of the present invention;
Fig. 6 is another schematic diagram of the structure of the bright chroma corrective system of a kind of LED display in the embodiment of the present invention.
Embodiment
For further setting forth the present invention for the technological means that realizes predetermined goal of the invention and take and effect, below in conjunction with accompanying drawing and preferred embodiment, to according to the specific embodiment of the present invention, structure, feature and effect thereof, be described in detail as follows.
Refer to Fig. 1, be a kind of in embodiment of the present invention embodiment of bright chroma bearing calibration of LED display, comprise:
101, obtain the configuration file of the LED box to be corrected of LED display, in configuration file, comprise the batch information of the lamp point of each batch in LED box to be corrected;
In embodiments of the present invention, corrective system can obtain the configuration file of the LED box to be corrected of LED display, comprises the batch information of the lamp point of each batch in LED box to be corrected in this configuration file.
Wherein, can store configuration files on LED box or lamp plate, therefore, corrective system can obtain configuration file from the storage space of LED box or lamp plate.
102, the correction coefficient of the lamp point of each batch is calculated according to the batch information of the service time of LED box to be corrected and the lamp point of each batch;
In embodiments of the present invention, in order to carry out bright chroma correction to the lamp point of each batch in LED box to be corrected better, which kind of mode is corrective system can use calculate the correction coefficient of the lamp point of each batch in this LED box to be corrected according to determining the service time of LED box to be corrected, wherein, the service time of LED box to be corrected can be divided into: be less than or equal to the first numerical value pre-set, or, be greater than the first numerical value of pre-setting and be less than or equal to the second value pre-set, or, be greater than the second value pre-set, calculating for the correction coefficient of the lamp point of each batch of the LED box to be corrected of different usage time interval also can be different.It should be noted that, that the service time of LED box to be corrected is divided into three time periods in the embodiment of the present invention, the LED box to be corrected of different time sections is adopted to the account form of different correction coefficient, in actual applications, the segmentation of service time also can be set according to concrete needs, not limit herein.
103, the correction coefficient of the lamp of each batch point is uploaded to LED box to be corrected to correct for the bright chroma of LED box lamp point to be corrected.
In embodiments of the present invention, corrective system obtain LED box to be corrected each batch lamp point correction coefficient after, the correction coefficient of the lamp of this each batch point is uploaded to LED box to be corrected to correct for the bright chroma of this LED box lamp point to be corrected, wherein, the correction coefficient of the lamp of each batch received point is kept in its storage space or is kept in the storage space of lamp plate by LED box to be corrected.
In embodiments of the present invention, bright chroma corrects and refers to the brightness not only changing monochromatic LED lamp, also changes its colourity by adding other monochromatic LED lamps.
In embodiments of the present invention, corrective system obtains the configuration file of the LED box to be corrected of LED display, comprise the batch information of the lamp point of each batch in this LED box to be corrected in this configuration file, calculate the correction coefficient of the lamp point of this each batch according to the batch information of the service time of this LED box to be corrected and the lamp point of this each batch; And the correction coefficient of the lamp of this each batch point is uploaded to this LED box to be corrected and corrects for the bright chroma of this LED box lamp point to be corrected, by utilizing the correction coefficient determining the lamp point of each batch service time of the batch information of the lamp of each batch point and LED box to be corrected, correction coefficient can be obtained easily and fast, make LED display have good display effect, efficient solution is determined the bright chroma difference problem between different batches LED.
Technical scheme for a better understanding of the present invention in embodiment, will introduce the different bearing calibration used service time is different in LED box to be corrected below respectively.
Refer to Fig. 2, be a kind of in embodiment of the present invention embodiment of bright chroma bearing calibration of LED display, comprise:
201, obtain the configuration file of the LED box to be corrected of LED display, in configuration file, comprise the batch information of the lamp point of each batch in LED box to be corrected;
Step 201 is identical with the content of the step 101 of middle description embodiment illustrated in fig. 1, does not repeat herein.
If the service time of 202 LED box to be corrected is less than or equal to the first numerical value pre-set, then determine the original light tone angle value that the batch information of the lamp point of each batch is corresponding;
In embodiments of the present invention, if be less than or equal to the first numerical value pre-set the service time of LED box to be corrected, then this LED box to be corrected is not long for service time, and the light tone angle value of lamp point of each batch is consistent with the light tone angle value of raw readings.
In embodiments of the present invention, if be less than or equal to the first numerical value pre-set the service time of LED box to be corrected, then corrective system determines the original light tone angle value that the batch information of the lamp point of each batch is corresponding.
It should be noted that, in corrective system, saved the corresponding relation between batch information and original light tone angle value in advance, the batch information of lamp point can be utilized to inquire about this corresponding relation to obtain corresponding original light tone angle value.Or the corresponding relation between batch information and original light tone angle value can be kept in configuration file, also can be stored in alternative document.
203, corresponding according to the batch information of the lamp point of each batch original light tone angle value calculates the correction coefficient of the lamp point of each batch;
In embodiments of the present invention, original light tone angle value corresponding for the batch information of the lamp point according to each batch is calculated the correction coefficient of the lamp point of each batch by corrective system, is specifically as follows: the original light tone angle value utilizing the batch information of the lamp of each batch point corresponding determines the common color gamut of the lamp point of this each batch; Using the target light tone angle value of the common color gamut of the lamp of this each batch point as the lamp point of this each batch, the target light tone angle value of the lamp point of the original light tone angle value of the lamp of this each batch point and this each batch is utilized to calculate the correction coefficient of the lamp point of this each batch.
Wherein, utilize the concrete computing formula of the target light tone angle value of the original light tone angle value of the lamp of each batch point and the lamp point of this each batch calculating correction coefficient as follows:
Wherein, R_LED
in, G_LED
in, B_LED
inthe light tone angle value of three primary colours (red, green, the blue) LED that representative is original before correcting respectively, R_LED
out, G_LED
out, B_LED
outrepresentative needs the target light tone angle value of the three-primary color LED lamp reached respectively,
For the bright chroma of lamp point correction coefficient and be a matrix of coefficients.
204, the correction coefficient of the lamp of each batch point is uploaded to LED box to be corrected to correct for the bright chroma of LED box lamp point to be corrected.
In embodiments of the present invention, corrective system is after the correction coefficient of lamp point obtaining each batch, the correction coefficient of the lamp of this each batch point is uploaded to LED box to be corrected, makes LED box to be corrected that the correction coefficient of the lamp of its each batch point can be used to correct bright chroma.
In embodiments of the present invention, after corrective system gets the configuration file of LED box to be corrected of LED display, if be less than or equal to the first numerical value pre-set the service time of this LED box to be corrected, then determine the original light tone angle value that the batch information of the lamp point of each batch comprised in this configuration file is corresponding, the original light tone angle value corresponding according to the batch information of the lamp point of this each batch calculates the correction coefficient of the lamp point of each batch and the correction coefficient of the lamp of each batch point is uploaded to this LED box to be corrected, can efficient solution to determine the problem of the bright chroma difference between different batches LED, LED display is made to have good display effect, and do not need to use image capture device just can obtain the correction coefficient of the lamp point of each batch of LED box to be corrected.
Refer to Fig. 3, be a kind of in embodiment of the present invention embodiment of bright chroma bearing calibration of LED display, comprise:
301, obtain the configuration file of the LED box to be corrected of LED display, in configuration file, comprise the batch information of the lamp point of each batch in LED box to be corrected;
Step 301 is identical with the content of the step 101 of middle description embodiment illustrated in fig. 1, does not repeat herein.
The first numerical value pre-set if be greater than the service time of 302 LED box to be corrected and be less than or equal to the second value pre-set, then determine the brightness decay curve of the original light tone angle value that the batch information of the lamp point of each batch is corresponding and correspondence;
In embodiments of the present invention, the first numerical value pre-set if be greater than the service time of LED box to be corrected and be less than or equal to the second value pre-set, this LED box to be corrected is then described through use after a while and aging, now, different between the brightness value of the lamp point of each batch and original brightness value, but colourity can think that drift is very slight, negligible.
Therefore, in embodiments of the present invention, the first numerical value pre-set if be greater than the service time of LED box to be corrected and be less than the second value pre-set, corrective system can determine the original light tone angle value that the batch information of the lamp point of each batch is corresponding and the brightness decay curve that the batch information of the lamp point of each batch is corresponding.
Wherein, brightness decay curve can be stored in advance in corrective system, or is stored in advance in the storage space of LED box to be corrected, or is stored in advance in the storage space of lamp plate.
In embodiments of the present invention, each batch has corresponding brightness decay curve, such as 5 batches red lamp points, then there is the die-away curve that 5 red, 6 batches of green lamp points, then have the die-away curve that 6 green, and each batch of corresponding die-away curve is tested and is obtained in advance by experiment.
Wherein, original light tone angle value corresponding to the batch information of the lamp point of each batch refers to the original light tone angle value of lamp point, and original bright chroma corresponding to the lamp dot information of each batch can be stored in configuration file, also can be stored in other file.
303, the correction coefficient of the lamp point of each batch is calculated according to the brightness decay curve of original light tone angle value corresponding to the batch information of the lamp point of each batch and correspondence;
In embodiments of the present invention, corrective system can calculate the correction coefficient of the lamp point of each batch by the die-away curve corresponding according to the batch information of the lamp point of original light tone angle value corresponding to the batch information of the lamp point of each batch obtained and each batch, be specifically as follows: the die-away curve that corrective system utilizes the batch information of the lamp of each batch point corresponding, and original light tone angle value corresponding to the batch information of the lamp point of each batch calculates the current light tone angle value after the lamp point decay of this each batch, and utilize the current light tone angle value of each batch to calculate the common color gamut of the lamp point of each batch, using the target light tone angle value of the common color gamut of the lamp of each batch point as the lamp point of this each batch, the target light tone angle value of the current light tone angle value of the lamp of each batch point and the lamp point of each batch is utilized to calculate the correction coefficient of this each lamp point.
Wherein, the formula that the current light tone angle value after utilizing lamp point to decay and target bright chroma calculate correction coefficient is as follows:
Concrete computing formula is as follows:
Wherein, R_LED
in, G_LED
in, B_LED
inrespectively representative correct before after decay the light tone angle value of three primary colours (red, green, blue) LED, R_LED
out, G_LED
out, B_LED
outrepresentative needs the target light tone angle value of the three-primary color LED lamp reached respectively,
For the bright chroma of lamp point correction coefficient and be a matrix of coefficients.
304, the correction coefficient of the lamp of each batch point is uploaded to LED box to be corrected to correct for the bright chroma of LED box lamp point to be corrected.
In embodiments of the present invention, corrective system is after the correction coefficient of lamp point obtaining each batch, the correction coefficient of the lamp of this each batch point is uploaded to LED box to be corrected, makes LED box to be corrected that the correction coefficient of the lamp of its each batch point can be used to correct bright chroma.
In embodiments of the present invention, corrective system is after the configuration file of LED box to be corrected obtaining LED display, the first numerical value pre-set if be greater than the service time of LED box to be corrected and be less than the second value pre-set, then determine the brightness decay curve of the original light tone angle value that the batch information of the lamp point of each batch is corresponding and correspondence, the original light tone angle value corresponding according to the batch information of the lamp point of each batch and the brightness decay curve of correspondence calculate the current light tone angle value after the lamp point decay of each batch, the light tone angle value utilizing this current calculates the common color gamut of the lamp point of each batch, using the common color gamut of the lamp of this each batch point as target bright chroma it, and utilize the target light tone angle value of the current light tone angle value of the lamp of each batch point and the lamp point of each batch to calculate the correction coefficient of the lamp point of this each batch, can efficient solution to determine the problem of the bright chroma difference between different batches LED, LED display is made to have good display effect, and do not need by the way to use image capture device just can obtain the correction coefficient of the lamp point of each batch of LED box to be corrected.
Refer to Fig. 4, be a kind of in embodiment of the present invention embodiment of bright chroma bearing calibration of LED display, comprise:
401, obtain the configuration file of the LED box to be corrected of LED display, in configuration file, comprise the batch information of the lamp point of each batch in LED box to be corrected;
Step 401 is identical with the content of the step 101 of middle description embodiment illustrated in fig. 1, does not repeat herein.
If the service time of 402 LED box to be corrected is greater than the second value pre-set, then determine the current light tone angle value that the batch information of the lamp point of each batch is corresponding;
In embodiments of the present invention, if be greater than the second value pre-set the service time of LED box to be corrected, this LED box to be corrected is then described through the use of long period and aging, now the original light tone angle value of the light tone angle value of the lamp point of each batch and the lamp point of each batch is different.
Wherein, corrective system determines that the method for the current light tone angle value that the batch information of the lamp point of each batch is corresponding has multiple, such as: record again and again light tone angle value Lxy by staff by light splitting type colorimeter, precision is the highest, but efficiency is very low.Light splitting type colorimeter can only be measured several times, the light tone angle value of one-shot measurement one batch.Or obtain light tone angle value Lxy by the industrial camera of band XYZ filter disc, precision is higher, and efficiency is higher, but the industrial camera price crossing band XYZ filter disc is more expensive.Camera can the bright chroma of one-shot measurement multiple batches, also can the light tone angle value of one-shot measurement one batch.Or, obtain light tone angle value Lxy by common color digital camera, first obtained the RGB numerical value of each lamp point by color digital camera, then change RGB numerical value into XYZ numerical value, and then obtain light tone angle value Lxy.Conversion method can be: modelling, look-up table (LUT, Look up Table), neural network etc.
Wherein, modelling is by setting up some mathematical models, realizes the linear or nonlinear transformation between RGB=XYZ.Such as S-curve model, Masking model, GOG (Gain-Offset-Gamma) model or multinomial model etc.Look-up table is the look-up table setting up an one dimension or three-dimensional (3D-LUT).LUT adopts the algorithm of interpolation or extrapolation, and find out the corresponding relation between RGB=XYZ, the some value dropped on sampling grid summit is summit value, and around the point not on summit adopts, nearest summit value is obtained by interpolation algorithm.Neural net method is exactly the characteristic utilizing artificial neural network nonlinear transformation, sets up the mapping relations of RGB=XYZ (forward network).The suitable space distribution choosing network structure and training sample set, can obtain higher precision.
Wherein, the current light tone angle value of the lamp point of each batch acquired according to the method described above can be kept in configuration file, or is kept in the storage space of LED box, or is kept in the storage space of lamp plate.And the current light tone angle value of this acquisition can use within the longer time period, a time period of interval once current light tone angle value can be obtained according to above-mentioned method.
403, the lamp point of the current light tone angle value utilizing the batch information of the lamp of each batch point corresponding to each batch carries out the calculating of brightness correction coefficients of same batch and the calculating of the chromaticity correction coefficient of different batches, obtains the correction coefficient of the lamp point of each batch;
In embodiments of the present invention, the lamp point of the current light tone angle value utilizing the batch information of the lamp of each batch point corresponding to each batch is carried out the calculating of bright chroma correction coefficient of same batch and the calculating of the bright chroma correction coefficient of different batches by corrective system, obtain the correction coefficient of the lamp point of each batch, concrete: the current light tone angle value that corrective system utilizes the batch information of the lamp of each batch point corresponding calculates the common color gamut of the lamp point of each batch of each batch, and using the target light tone angle value of the common color gamut of the lamp of this each batch point as the lamp point of each batch, and the target light tone angle value of the lamp point of the current light tone angle value utilizing the batch information of the lamp of each batch point corresponding and this each batch carries out the calculating of brightness correction coefficients of same batch and the calculating of the chromaticity correction coefficient of different batches, obtain the correction coefficient of the lamp point of each batch.
Wherein, use gamma correction in batch, different batches uses chromaticity correction, and in program computation, even if batch in gamma correction and batch between chromaticity correction be once good, not sequencing.
The mode utilizing the current light tone angle value of lamp point and target light tone angle value to calculate correction coefficient comprises::
With batch the account form of bright chroma correction coefficient as follows:
R_LED
out＝a
11R_LED
in；
G_LED
out＝a
22G_LED
in；
B_LED
out＝a
33B_LED
in；
The bright chroma correction coefficient computing formula of different batches is as follows:
Wherein, R_LED
in, G_LED
in, B_LED
inthe light tone angle value of current three primary colours (red, green, the blue) LED respectively before representative correction, R_LED
out, G_LED
out, B_LED
outrepresentative needs the target light tone angle value of the three-primary color LED lamp reached respectively,
For the bright chroma of lamp point correction coefficient and be a matrix of coefficients.
404, the correction coefficient of the lamp of each batch point is uploaded to LED box to be corrected to correct for the bright chroma of LED box lamp point to be corrected.
In embodiments of the present invention, corrective system is after the correction coefficient of lamp point obtaining each batch, the correction coefficient of the lamp of this each batch point is uploaded to LED box to be corrected, makes LED box to be corrected that the correction coefficient of the lamp of its each batch point can be used to correct bright chroma.
In embodiments of the present invention, corrective system is after the configuration file of LED box to be corrected obtaining LED display, if be greater than the second value pre-set the service time of this LED box to be corrected, then determine the current light tone angle value that the batch information of the lamp point of each batch comprised in configuration information is corresponding, the current light tone angle value utilizing the batch information of the lamp of this each batch point corresponding calculates the common color gamut of the lamp point of this each batch, using the target light tone angle value of the common color gamut of the lamp of this each batch point as the lamp point of this each batch, utilize the current light tone angle value that the batch information of the lamp of this each batch point is corresponding, and the target light tone angle value of the lamp point of this each batch carries out the calculating with the calculating of batch brightness correction coefficients and the chromaticity correction coefficient of different batches, obtain the correction coefficient of the lamp point of each batch, efficient solution is determined the problem of the bright chroma difference between different batches LED, LED display is made to have good display effect, and the batch information of lamp point can be made full use of.
Refer to Fig. 5, be a kind of in embodiment of the present invention embodiment of bright chroma corrective system of LED display, comprise:
Acquisition module 501, for obtaining the configuration file of the LED box to be corrected of LED display, comprises the batch information of the lamp point of each batch in LED box to be corrected in configuration file;
Computing module 502, for obtain each batch at acquisition module the batch information of lamp point after, calculate the correction coefficient of the lamp point of each batch according to the batch information of the service time of LED box to be corrected and the lamp point of each batch;
Upper transmission module 503, for obtain each lamp point at computing module correction coefficient after, the correction coefficient of the lamp of each batch point is uploaded to LED box to be corrected and corrects for the bright chroma of LED box lamp point to be corrected.
In embodiments of the present invention, acquisition module 501 obtains the configuration file of the LED box to be corrected of LED display, comprises the batch information of the lamp point of each batch in LED box to be corrected in configuration file; Then, computing module 502 calculates the correction coefficient of the lamp point of each batch according to the batch information of the lamp point of the service time of LED box to be corrected and each batch; Finally by upper transmission module 503, the correction coefficient of the lamp of each batch point is uploaded to LED box to be corrected to correct for the bright chroma of LED box lamp point to be corrected.
Wherein, can store configuration files on LED box or lamp plate, therefore, acquisition module 501 can obtain configuration file from the storage space of LED box or lamp plate.
In embodiments of the present invention, in order to carry out bright chroma correction to the lamp point of each batch in LED box to be corrected better, which kind of mode is corrective system can use calculate the correction coefficient of the lamp point of each batch in this LED box to be corrected according to determining the service time of LED box to be corrected, wherein, the service time of LED box to be corrected can be divided into: be less than or equal to the first numerical value pre-set, or, be greater than the first numerical value of pre-setting and be less than or equal to the second value pre-set, or, be greater than the second value pre-set, calculating for the correction coefficient of the lamp point of each batch of the LED box to be corrected of different usage time interval also can be different.It should be noted that, that the service time of LED box to be corrected is divided into three time periods in the embodiment of the present invention, the LED box to be corrected of different time sections is adopted to the account form of no correction coefficient, in actual applications, the segmentation of service time also can be set according to concrete needs, not limit herein.
In embodiments of the present invention, corrective system obtains the configuration file of the LED box to be corrected of LED display, comprise the batch information of the lamp point of each batch in this LED box to be corrected in this configuration file, calculate the correction coefficient of the lamp point of this each batch according to the batch information of the service time of this LED box to be corrected and the lamp point of this each batch; And the correction coefficient of the lamp of this each batch point is uploaded to this LED box to be corrected and corrects for the bright chroma of this LED box lamp point to be corrected, by utilizing the correction coefficient determining the lamp point of each batch service time of the batch information of the lamp of each batch point and LED box to be corrected, conveniently can determine correction coefficient, make LED display have good display effect, efficient solution is determined the bright chroma difference problem between different batches LED.
Refer to Fig. 6, for a kind of in embodiment of the present invention embodiment of another structure of bright chroma corrective system of LED display, comprise: the acquisition module 501 described in embodiment as shown in Figure 5, computing module 502, upper transmission module 503, and similar to the content of middle description embodiment illustrated in fig. 5, do not repeat herein.
In embodiments of the present invention, computing module 502 comprises:
First determination module 601, if be less than or equal to for the service time of LED box to be corrected the first numerical value pre-set, then determines the original light tone angle value that the batch information of the lamp point of each batch is corresponding;
First computing module 602, original light tone angle value corresponding to the batch information for the lamp point according to each batch calculates the correction coefficient of the lamp point of each batch.
Wherein, the first computing module 602 comprises:
Colour gamut determination module 6021, the original light tone angle value for utilizing the batch information of the lamp of each batch point corresponding determines the common color gamut of the lamp point of each batch;
Second computing module 6022, for using the target light tone angle value of the common color gamut of the lamp of each batch point as the lamp point of each batch, the target light tone angle value of the original light tone angle value of the lamp of this each batch point and the lamp point of each batch is utilized to calculate the correction coefficient of the lamp point of each batch.
In embodiments of the present invention, computing module 502 also comprises:
Second determination module 603, the first numerical value pre-set if be greater than the service time for LED box to be corrected and be less than or equal to the second value pre-set, then determine the brightness decay curve that the lamp point of the original light tone angle value that the batch information of the lamp point of each batch is corresponding and each batch is corresponding;
3rd computing module 604, the brightness decay curve that the lamp point of the original light tone angle value that the batch information for the lamp point according to each batch is corresponding and each batch is corresponding calculates the correction coefficient of the lamp point of each batch.
Wherein, the 3rd computing module 604 comprises:
4th computing module 6041, the original light tone angle value corresponding for the batch information of the lamp point utilizing each batch described and brightness decay curve corresponding to the lamp of each batch calculate the current light tone angle value after the lamp point decay of each batch described;
5th computing module 6042, for the common color gamut utilizing light tone angle value current described in the lamp point of each batch described to calculate the lamp point of each batch described, using the target light tone angle value of the common color gamut of the lamp of each batch described point as the lamp point of each batch described, the described current light tone angle value of lamp point of each batch described and the target light tone angle value of the lamp point of each batch described is utilized to calculate the correction coefficient of the lamp point of each batch described.
In embodiments of the present invention, computing module 502 also comprises:
3rd determination module 605, if be greater than for the service time of LED box to be corrected the second value pre-set, then determines the current light tone angle value that the batch information of the lamp point of each batch is corresponding;
6th computing module 606, the lamp point of current light tone angle value to each batch for utilizing the batch information of the lamp of each batch point corresponding carries out the calculating of brightness correction coefficients of same batch and the calculating of the chromaticity correction coefficient of different batches, obtains the correction coefficient of the lamp point of each batch.
Wherein, the 6th computing module 606 comprises:
7th computing module 6061, the common color gamut of the lamp point of each batch described in calculating for the current light tone angle value that the batch information of the lamp point utilizing each batch described is corresponding;
8th computing module 6062, for using the target light tone angle value of the common color gamut of the lamp of each batch described point as the lamp point of each batch, utilize the target light tone angle value of the lamp point of current light tone angle value corresponding to the batch information of the lamp point of each batch described and each batch described to carry out the calculating of brightness correction coefficients of same batch and the calculating of the chromaticity correction coefficient of different batches, obtain the correction coefficient of the lamp point of each batch described.
In embodiments of the present invention, acquisition module 501 obtains the configuration file of the LED box to be corrected of LED display, comprises the batch information of the lamp point of each batch in LED box to be corrected in configuration file; If be less than or equal to the first numerical value pre-set the service time of LED box to be corrected, then the first determination module 601 in computing module 502 determines the original light tone angle value that the batch information of the lamp point of each batch is corresponding; And the correction coefficient of the lamp point of each batch is calculated by the original light tone angle value that the first computing module 602 is corresponding according to the batch information of the lamp point of each batch, concrete: the original light tone angle value that in the first computing module 602, colour gamut determination module 6021 utilizes the batch information of the lamp of each batch point corresponding determines the common color gamut of the lamp point of each batch; And second computing module 6022 using the target light tone angle value of the common color gamut of the lamp of each batch point as the lamp point of each batch, utilize the target light tone angle value of the original light tone angle value of the lamp of this each batch point and the lamp point of each batch to calculate the correction coefficient of the lamp point of each batch.The first numerical value pre-set if be greater than the service time of LED box to be corrected and be less than or equal to the second value pre-set, the second determination module 603 then in computing module 502 determines the brightness decay curve that the lamp point of the original light tone angle value that the batch information of the lamp point of each batch is corresponding and each batch is corresponding, and the 3rd computing module 604 brightness decay curve corresponding according to the lamp point of original light tone angle value corresponding to the batch information of the lamp point of each batch and each batch calculates the correction coefficient of the lamp point of each batch, concrete, the brightness decay curve that the lamp point of the original light tone angle value that the 4th computing module 6041 in the 3rd computing module 604 utilizes the batch information of the lamp of this each batch point corresponding and each batch is corresponding calculates the current light tone angle value after the lamp point decay of this each batch, and utilize the current light tone angle value of the lamp of this each batch point to calculate the common color gamut of the lamp point of this each batch by the 5th computing module 6042 in the 3rd computing module 604, using the target light tone angle value to lamp point of the common color gamut of the lamp of this each batch point as each batch, the target light tone angle value of the current light tone angle value of the lamp of this each batch point and the lamp point of this each batch is utilized to calculate the correction coefficient of the lamp point of this each batch, if be greater than the second value pre-set the service time of LED box to be corrected, the 3rd determination module 605 then in computing module 502 determines the current light tone angle value that the batch information of the lamp point of each batch is corresponding, the lamp point of the current light tone angle value that 6th computing module 606 utilizes the batch information of the lamp of each batch point corresponding to each batch carries out the calculating of brightness correction coefficients of same batch and the calculating of the chromaticity correction coefficient of different batches, obtain the correction coefficient of the lamp point of each batch, concrete: the current light tone angle value that the 7th computing module 6061 in the 6th computing module 606 utilizes the batch information of the lamp of this each batch point corresponding calculates the common color gamut of the lamp point of this each batch, and by the 8th computing module 6062 in the 6th computing module 606 using the target light tone angle value of the common color gamut of the lamp of this each batch point as the lamp point of this each batch, the target light tone angle value of the current light tone angle value utilizing the batch information of the lamp of this each batch point corresponding and the lamp point of this each batch carries out the calculating of brightness correction coefficients of same batch and the calculating of the chromaticity correction coefficient of different batches, obtain the lamp point calibration coefficient of each batch, finally by upper transmission module 503, the correction coefficient of the lamp of each batch point is uploaded to LED box to be corrected to correct for the bright chroma of LED box lamp point to be corrected.
In embodiment in the present invention, after corrective system gets the configuration file of LED box to be corrected of LED display, if be less than or equal to the first numerical value pre-set the service time of this LED box to be corrected, then determine the original light tone angle value that the batch information of the lamp point of each batch comprised in this configuration file is corresponding, the original light tone angle value corresponding according to the batch information of the lamp point of this each batch calculates the correction coefficient of the lamp point of each batch and the correction coefficient of the lamp of each batch point is uploaded to this LED box to be corrected; The first numerical value pre-set if be greater than the service time of LED box to be corrected and be less than the second value pre-set, then determine the brightness decay curve of the original light tone angle value that the batch information of the lamp point of each batch is corresponding and correspondence, the original light tone angle value corresponding according to the batch information of the lamp point of each batch and the brightness decay curve of correspondence calculate the correction coefficient of the lamp point of each batch; If be greater than the second value pre-set the service time of this LED box to be corrected, then determine the current light tone angle value that the batch information of the lamp point of each batch comprised in configuration information is corresponding, the lamp point of the current light tone angle value utilizing the batch information of the lamp of each batch point corresponding to each batch carries out the calculating with the calculating of batch brightness correction coefficients and the chromaticity correction coefficient of different batches, obtains the correction coefficient of the lamp point of each batch; Can efficient solution to be determined the problem of the bright chroma difference between different batches LED by above-mentioned mode, LED display is made to have good display effect, and first two mode just can obtain correction coefficient when not needing use image capture device, Fast Correction can be realized, rear a kind of correcting mode can make full use of the batch information of lamp point, and calibration result is better.
The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be do not depart from technical solution of the present invention content, according to any simple modification that technical spirit of the present invention is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (14)
1. a bright chroma bearing calibration for LED display, is characterized in that, comprising:
Obtain the configuration file of the LED box to be corrected of LED display, in described configuration file, comprise the batch information of the lamp point of each batch in described LED box to be corrected;
The correction coefficient of the lamp point of each batch described is calculated according to the batch information of the service time of described LED box to be corrected and the lamp point of each batch described;
The correction coefficient of the lamp of each batch described point is uploaded to described LED box to be corrected to correct for the bright chroma of described LED box lamp point to be corrected.
2. method according to claim 1, is characterized in that, the correction coefficient of the lamp point of batch information calculating each batch described of the lamp point of the described service time according to described LED box to be corrected and each batch described comprises:
If the service time of described LED box to be corrected is less than or equal to the first numerical value pre-set, then determine the original light tone angle value that the batch information of the lamp point of each batch described is corresponding;
The original light tone angle value corresponding according to the batch information of the lamp point of each batch described calculates the correction coefficient of the lamp point of each batch described.
3. method according to claim 2, is characterized in that, the correction coefficient that original light tone angle value corresponding to the batch information of the lamp point of each batch described in described basis calculates the lamp point of each batch described comprises:
Original light tone angle value corresponding to the batch information of the lamp point of each batch described is utilized to determine the common color gamut of the lamp point of each batch;
Using the target light tone angle value of the common color gamut of the lamp of each batch described point as the lamp point of each batch described, the described original light tone angle value of the lamp point of each batch described and described target light tone angle value is utilized to calculate the correction coefficient of the lamp point of each batch described.
4. method according to claim 1, is characterized in that, the correction coefficient of the lamp point of batch information calculating each batch described of the lamp point of the described service time according to described LED box to be corrected and each batch described comprises:
The first numerical value pre-set if be greater than the service time of described LED box to be corrected and be less than or equal to the second value pre-set, then determine the brightness decay curve that the lamp point of the original light tone angle value that the batch information of the lamp point of each batch described is corresponding and each batch described is corresponding;
The original light tone angle value corresponding according to the batch information of the lamp point of each batch described and brightness decay curve corresponding to the lamp point of each batch described calculate the correction coefficient of the lamp point of each batch described.
5. method according to claim 4, it is characterized in that, the brightness decay curve that the lamp point of the original light tone angle value that the batch information of the lamp point of each batch described in described basis is corresponding and each batch described is corresponding calculates the correction coefficient of the lamp point of each batch described, comprising:
Utilize the original light tone angle value that the batch information of the lamp point of each batch described is corresponding, and brightness decay curve corresponding to the lamp point of each batch described calculates the current light tone angle value after the lamp point decay of each batch described;
Light tone angle value current described in the lamp point of each batch described is utilized to calculate the common color gamut of the lamp point of each batch described, using the target light tone angle value of the common color gamut of the lamp of each batch described point as the lamp point of each batch described, the described current light tone angle value of lamp point of each batch described and the target light tone angle value of the lamp point of each batch described is utilized to calculate the correction coefficient of the lamp point of each batch described.
6. method according to claim 1, is characterized in that, the correction coefficient of the lamp point of batch information calculating each batch described of the lamp point of the described service time according to described LED box to be corrected and each batch described comprises:
If the service time of described LED box to be corrected is greater than the second value pre-set, then determine the current light tone angle value that the batch information of the lamp point of each batch described is corresponding;
Utilize the lamp point of current light tone angle value to each batch described corresponding to the batch information of the lamp point of each batch described to carry out the calculating of brightness correction coefficients of same batch and the calculating of the chromaticity correction coefficient of different batches, obtain the correction coefficient of the lamp point of each batch described.
7. method according to claim 6, it is characterized in that, the lamp point of current light tone angle value to each batch described that the batch information of the lamp point of each batch described in described utilization is corresponding carries out the calculating of brightness correction coefficients of same batch and the calculating of the chromaticity correction coefficient of different batches, obtain the correction coefficient of the lamp point of each batch described, comprising:
Current light tone angle value corresponding to the batch information of the lamp point of each batch described is utilized to calculate the common color gamut of the lamp point of each batch described;
Using the target light tone angle value of the common color gamut of the lamp of each batch described point as the lamp point of each batch described, utilize the target light tone angle value of the lamp point of current light tone angle value corresponding to the batch information of the lamp point of each batch described and each batch described to carry out the calculating of brightness correction coefficients of same batch and the calculating of the chromaticity correction coefficient of different batches, obtain the correction coefficient of the lamp point of each batch described.
8. a bright chroma corrective system for LED display, is characterized in that, comprising:
Acquisition module, for obtaining the configuration file of the LED box to be corrected of LED display, comprises the batch information of the lamp point of each batch in described LED box to be corrected in described configuration file;
Computing module, for obtain the lamp point of each batch described at described acquisition module batch information after, calculate the correction coefficient of the lamp point of each batch described according to the batch information of the service time of described LED box to be corrected and the lamp point of each batch described;
Upper transmission module, for obtain each lamp point described at described computing module correction coefficient after, the correction coefficient of the lamp of each batch described point is uploaded to described LED box to be corrected and corrects for the bright chroma of described LED box lamp point to be corrected.
9. system according to claim 8, is characterized in that, described computing module comprises:
First determination module, if be less than or equal to for the service time of described LED box to be corrected the first numerical value pre-set, then determines the original light tone angle value that the batch information of the lamp point of each batch described is corresponding;
First computing module, the correction coefficient of the lamp point of original light tone angle value calculating each batch described that the batch information for the lamp point according to each batch described is corresponding.
10. system according to claim 9, is characterized in that, described first computing module comprises:
Colour gamut determination module, the common color gamut of the lamp point of each batch described in determining for the original light tone angle value that the batch information of the lamp point utilizing each batch described is corresponding;
Second computing module, for using the target light tone angle value of the common color gamut of the lamp of each batch described point as the lamp point of each batch described, the described original light tone angle value of the lamp point of each batch described and described target light tone angle value is utilized to calculate the correction coefficient of the lamp point of each batch described.
11. systems according to claim 8, is characterized in that, described computing module comprises:
Second determination module, the first numerical value pre-set if be greater than the service time for described LED box to be corrected and be less than or equal to the second value pre-set, then determine the brightness decay curve that the lamp point of the original light tone angle value that the batch information of the lamp point of each batch described is corresponding and each batch described is corresponding;
3rd computing module, the brightness decay curve that the lamp point of the original light tone angle value that the batch information for the lamp point according to each batch described is corresponding and each batch described is corresponding calculates the correction coefficient of the lamp point of each batch described.
12. systems according to claim 8, is characterized in that, described 3rd computing module comprises:
4th computing module, the original light tone angle value corresponding for the batch information of the lamp point utilizing each batch described and the brightness decay curve of correspondence calculate the current light tone angle value after the lamp point decay of each batch described;
5th computing module, for the common color gamut utilizing light tone angle value current described in the lamp point of each batch described to calculate the lamp point of each batch described, using the target light tone angle value of the common color gamut of the lamp of each batch described point as the lamp point of each batch described, the described current light tone angle value of lamp point of each batch described and the target light tone angle value of the lamp point of each batch described is utilized to calculate the correction coefficient of the lamp point of each batch described.
13. systems according to claim 8, is characterized in that, described computing module comprises:
3rd determination module, if be greater than for the service time of described LED box to be corrected the second value pre-set, then determines the current light tone angle value that the batch information of the lamp point of each batch described is corresponding;
6th computing module, carry out the calculating of brightness correction coefficients of same batch and the calculating of the chromaticity correction coefficient of different batches for the lamp point of current light tone angle value to each batch described that the batch information of the lamp point utilizing each batch described is corresponding, obtain the correction coefficient of the lamp point of each batch described.
14. systems according to claim 13, is characterized in that, described 6th computing module comprises:
7th computing module, the common color gamut of the lamp point of each batch described in calculating for the current light tone angle value that the batch information of the lamp point utilizing each batch described is corresponding;
8th computing module, for using the target light tone angle value of the common color gamut of the lamp of each batch described point as the lamp point of each batch, utilize the target light tone angle value of the lamp point of current light tone angle value corresponding to the batch information of the lamp point of each batch described and each batch described to carry out the calculating of brightness correction coefficients of same batch and the calculating of the chromaticity correction coefficient of different batches, obtain the correction coefficient of the lamp point of each batch described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410735159.8A CN104485068B (en) | 2014-12-02 | 2014-12-02 | Luminance-chrominance correction method and system of LED (Light Emitting Diode) display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410735159.8A CN104485068B (en) | 2014-12-02 | 2014-12-02 | Luminance-chrominance correction method and system of LED (Light Emitting Diode) display screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104485068A true CN104485068A (en) | 2015-04-01 |
| CN104485068B CN104485068B (en) | 2017-02-01 |
Family
ID=52759608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410735159.8A Active CN104485068B (en) | 2014-12-02 | 2014-12-02 | Luminance-chrominance correction method and system of LED (Light Emitting Diode) display screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104485068B (en) |
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105551428A (en) * | 2016-02-03 | 2016-05-04 | 西安诺瓦电子科技有限公司 | LED display screen alternative point collection correction method |
| CN105788499A (en) * | 2016-04-28 | 2016-07-20 | 深圳市灵星雨科技开发有限公司 | LED display screen point-to-point brightness and chroma correction method based on constant-temperature CCD camera |
| CN106710565A (en) * | 2017-03-30 | 2017-05-24 | 国网福建省电力有限公司 | Correction method for liquid crystal display screen array |
| CN106816138A (en) * | 2015-12-02 | 2017-06-09 | 群创光电股份有限公司 | Display device and its color adjustment method |
| WO2018090597A1 (en) * | 2016-11-17 | 2018-05-24 | 西安诺瓦电子科技有限公司 | Point-by-point correction method |
| CN108257579A (en) * | 2018-01-17 | 2018-07-06 | 中兴通讯股份有限公司 | The method, apparatus and terminal of a kind of screen calibration |
| CN109934211A (en) * | 2019-03-11 | 2019-06-25 | Oppo广东移动通信有限公司 | The calibration method and relevant apparatus of fingerprint |
| CN110148372A (en) * | 2019-05-30 | 2019-08-20 | 维沃移动通信有限公司 | A kind of screen correction method and apparatus |
| CN110534071A (en) * | 2019-07-19 | 2019-12-03 | 南京巨鲨显示科技有限公司 | A kind of display color calibration system neural network based and method |
| CN110675835A (en) * | 2019-09-29 | 2020-01-10 | 武汉天马微电子有限公司 | Display panel driving method, display driving device and electronic equipment |
| CN110675807A (en) * | 2019-10-15 | 2020-01-10 | 深圳市奥拓电子股份有限公司 | Color difference adjustment matching method, system and storage medium |
| CN111382841A (en) * | 2020-03-04 | 2020-07-07 | 卡莱特（深圳）云科技有限公司 | Method for estimating lamp point distance of screen body |
| CN112233570A (en) * | 2020-12-16 | 2021-01-15 | 卡莱特（深圳）云科技有限公司 | Arc screen correction method and device, computer equipment and storage medium |
| CN112419966A (en) * | 2020-11-17 | 2021-02-26 | 长春希达电子技术有限公司 | Method for correcting pixel brightness of nonstandard spacing between display units |
| CN112967677A (en) * | 2021-02-26 | 2021-06-15 | 昆山工研院新型平板显示技术中心有限公司 | Method, device and equipment for determining brightness of display module and storage medium |
| CN112996169A (en) * | 2019-11-29 | 2021-06-18 | 威达高科股份有限公司 | LED module with resume information, screen display and correction system |
| CN113257174A (en) * | 2021-04-26 | 2021-08-13 | 长春希达电子技术有限公司 | Method for determining chromaticity correction target color gamut of LED display screen |
| CN113436572A (en) * | 2021-05-17 | 2021-09-24 | 卡莱特云科技股份有限公司 | Correction method and device irrelevant to direction of LED box body and LED display screen |
| CN113889028A (en) * | 2021-09-23 | 2022-01-04 | 惠州市艾比森光电有限公司 | Correction method and device for display screen box body |
| CN114137435A (en) * | 2021-11-25 | 2022-03-04 | 深圳市九洲光电科技有限公司 | LED display online calibration system |
| CN114828345A (en) * | 2022-06-29 | 2022-07-29 | 深圳市爱图仕影像器材有限公司 | Lamp bead light parameter calibration method, lamp bead parameter acquisition method, device and system |
| US11508286B2 (en) | 2019-09-29 | 2022-11-22 | Wuhan Tianma Micro-Electronics Co., Ltd. | Method for driving a display panel, display driving device and electronic device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200739513A (en) * | 2006-04-14 | 2007-10-16 | Au Optronics Corp | Lightness adjustment circuit and electroluminescent display using the same |
| CN101866621A (en) * | 2010-06-03 | 2010-10-20 | 北京中庆微数字设备开发有限公司 | LED display screen correction system and method |
| CN102005181A (en) * | 2010-11-19 | 2011-04-06 | 深圳市金立翔光电科技有限公司 | Standard dot matrix light source and image point correction method of LED display screen |
| CN102682702A (en) * | 2012-05-17 | 2012-09-19 | 苏州君嬴电子科技有限公司 | Configuration method and configuration system for LED (light-emitting diode) display screen |
| US20120242710A1 (en) * | 2011-03-24 | 2012-09-27 | Samsung Mobile Display Co., Ltd. | Luminance correction system for organic light emitting display devices |
| CN102768816A (en) * | 2012-07-30 | 2012-11-07 | 西安诺瓦电子科技有限公司 | Automatic LED (light-emitting diode) display screen correction method |
| CN103559864A (en) * | 2013-11-11 | 2014-02-05 | 西安诺瓦电子科技有限公司 | Bright chroma correcting method for LED display modules |
| CN104091566A (en) * | 2014-07-21 | 2014-10-08 | 西安诺瓦电子科技有限公司 | Display screen bright color degree adjustment method and LED display control method and system |
-
2014
- 2014-12-02 CN CN201410735159.8A patent/CN104485068B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200739513A (en) * | 2006-04-14 | 2007-10-16 | Au Optronics Corp | Lightness adjustment circuit and electroluminescent display using the same |
| CN101866621A (en) * | 2010-06-03 | 2010-10-20 | 北京中庆微数字设备开发有限公司 | LED display screen correction system and method |
| CN102005181A (en) * | 2010-11-19 | 2011-04-06 | 深圳市金立翔光电科技有限公司 | Standard dot matrix light source and image point correction method of LED display screen |
| US20120242710A1 (en) * | 2011-03-24 | 2012-09-27 | Samsung Mobile Display Co., Ltd. | Luminance correction system for organic light emitting display devices |
| CN102682702A (en) * | 2012-05-17 | 2012-09-19 | 苏州君嬴电子科技有限公司 | Configuration method and configuration system for LED (light-emitting diode) display screen |
| CN102768816A (en) * | 2012-07-30 | 2012-11-07 | 西安诺瓦电子科技有限公司 | Automatic LED (light-emitting diode) display screen correction method |
| CN103559864A (en) * | 2013-11-11 | 2014-02-05 | 西安诺瓦电子科技有限公司 | Bright chroma correcting method for LED display modules |
| CN104091566A (en) * | 2014-07-21 | 2014-10-08 | 西安诺瓦电子科技有限公司 | Display screen bright color degree adjustment method and LED display control method and system |
Cited By (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106816138A (en) * | 2015-12-02 | 2017-06-09 | 群创光电股份有限公司 | Display device and its color adjustment method |
| CN105551428A (en) * | 2016-02-03 | 2016-05-04 | 西安诺瓦电子科技有限公司 | LED display screen alternative point collection correction method |
| CN105788499A (en) * | 2016-04-28 | 2016-07-20 | 深圳市灵星雨科技开发有限公司 | LED display screen point-to-point brightness and chroma correction method based on constant-temperature CCD camera |
| WO2018090597A1 (en) * | 2016-11-17 | 2018-05-24 | 西安诺瓦电子科技有限公司 | Point-by-point correction method |
| CN106710565A (en) * | 2017-03-30 | 2017-05-24 | 国网福建省电力有限公司 | Correction method for liquid crystal display screen array |
| CN108257579A (en) * | 2018-01-17 | 2018-07-06 | 中兴通讯股份有限公司 | The method, apparatus and terminal of a kind of screen calibration |
| CN109934211A (en) * | 2019-03-11 | 2019-06-25 | Oppo广东移动通信有限公司 | The calibration method and relevant apparatus of fingerprint |
| CN109934211B (en) * | 2019-03-11 | 2021-04-09 | Oppo广东移动通信有限公司 | Fingerprint calibration method and related device |
| CN110148372A (en) * | 2019-05-30 | 2019-08-20 | 维沃移动通信有限公司 | A kind of screen correction method and apparatus |
| CN110534071A (en) * | 2019-07-19 | 2019-12-03 | 南京巨鲨显示科技有限公司 | A kind of display color calibration system neural network based and method |
| CN110534071B (en) * | 2019-07-19 | 2020-09-18 | 南京巨鲨显示科技有限公司 | Display color calibration system and method based on neural network |
| CN110675835A (en) * | 2019-09-29 | 2020-01-10 | 武汉天马微电子有限公司 | Display panel driving method, display driving device and electronic equipment |
| US11508286B2 (en) | 2019-09-29 | 2022-11-22 | Wuhan Tianma Micro-Electronics Co., Ltd. | Method for driving a display panel, display driving device and electronic device |
| CN110675807A (en) * | 2019-10-15 | 2020-01-10 | 深圳市奥拓电子股份有限公司 | Color difference adjustment matching method, system and storage medium |
| CN112996169A (en) * | 2019-11-29 | 2021-06-18 | 威达高科股份有限公司 | LED module with resume information, screen display and correction system |
| CN111382841B (en) * | 2020-03-04 | 2021-02-19 | 卡莱特（深圳）云科技有限公司 | Method for estimating lamp point distance of screen body |
| CN111382841A (en) * | 2020-03-04 | 2020-07-07 | 卡莱特（深圳）云科技有限公司 | Method for estimating lamp point distance of screen body |
| CN112419966A (en) * | 2020-11-17 | 2021-02-26 | 长春希达电子技术有限公司 | Method for correcting pixel brightness of nonstandard spacing between display units |
| CN112419966B (en) * | 2020-11-17 | 2022-08-23 | 长春希达电子技术有限公司 | Method for correcting pixel brightness of nonstandard interval between display units |
| CN112233570B (en) * | 2020-12-16 | 2021-04-02 | 卡莱特（深圳）云科技有限公司 | Arc screen correction method and device, computer equipment and storage medium |
| CN112233570A (en) * | 2020-12-16 | 2021-01-15 | 卡莱特（深圳）云科技有限公司 | Arc screen correction method and device, computer equipment and storage medium |
| CN112967677A (en) * | 2021-02-26 | 2021-06-15 | 昆山工研院新型平板显示技术中心有限公司 | Method, device and equipment for determining brightness of display module and storage medium |
| CN113257174B (en) * | 2021-04-26 | 2022-07-12 | 长春希达电子技术有限公司 | Method for determining chromaticity correction target color gamut of LED display screen |
| CN113257174A (en) * | 2021-04-26 | 2021-08-13 | 长春希达电子技术有限公司 | Method for determining chromaticity correction target color gamut of LED display screen |
| CN113436572B (en) * | 2021-05-17 | 2022-02-22 | 卡莱特云科技股份有限公司 | Correction method and device irrelevant to direction of LED box body and LED display screen |
| CN113436572A (en) * | 2021-05-17 | 2021-09-24 | 卡莱特云科技股份有限公司 | Correction method and device irrelevant to direction of LED box body and LED display screen |
| CN113889028A (en) * | 2021-09-23 | 2022-01-04 | 惠州市艾比森光电有限公司 | Correction method and device for display screen box body |
| CN114137435A (en) * | 2021-11-25 | 2022-03-04 | 深圳市九洲光电科技有限公司 | LED display online calibration system |
| CN114828345A (en) * | 2022-06-29 | 2022-07-29 | 深圳市爱图仕影像器材有限公司 | Lamp bead light parameter calibration method, lamp bead parameter acquisition method, device and system |
| CN114828345B (en) * | 2022-06-29 | 2022-09-20 | 深圳市爱图仕影像器材有限公司 | Lamp bead light parameter calibration method, lamp bead parameter acquisition method, device and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104485068B (en) | 2017-02-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104485068A (en) | Luminance-chrominance correction method and system of LED (Light Emitting Diode) display screen | |
| CN104299565B (en) | The low gray scale correction method and system of LED display | |
| CN104464623B (en) | A kind of method and device for adjusting the low GTG of light emitting diode | |
| CN106531060B (en) | The bearing calibration of LED display bright chroma and device | |
| CN101692326B (en) | System and method for on-site point-by-point calibration of brightness and chrominance of the whole screen of LED display screen | |
| CN108063935B (en) | White balance adjusting method and system, the display device of display screen | |
| CN103680413B (en) | Image processing device and image processing method | |
| CN1538377B (en) | Color OLED display system | |
| CN105185298B (en) | LED display bearing calibration | |
| CN103050109B (en) | Color correction method and system for multi-screen display device | |
| CN103955079B (en) | Method for obtaining brightness and chrominance of white of RGBW display device by using RGB display device | |
| CN105427788A (en) | Method and system for automatically adjusting brightness and chroma of display device | |
| CN109141640A (en) | Acetes chinensis method, system, equipment and storage medium based on machine vision | |
| CN105282531B (en) | Control the method and device of low gray level white balance | |
| CN104464685B (en) | Adjust GTG transition and the method and device of color of display device | |
| CN107248389B (en) | Color gamut compensation method and device of display panel | |
| WO2017035849A1 (en) | White balancing method for four-color pixel system | |
| CN102542988B (en) | Device and method for previewing light-emitting diode (LED) display screen revising effect | |
| US20110148902A1 (en) | Evaluation method of display device | |
| CN110277054A (en) | A kind of LED display multi-grey level bearing calibration | |
| CN104505054A (en) | Method for adjusting gray-scale transition and color of display device | |
| CN100501953C (en) | Luminous diode color matching method | |
| CN104167174A (en) | LED display screen white balance adjustment method and device | |
| CN103489411A (en) | Display-screen color maintenance method and system | |
| CN108932936A (en) | The adjusting method and display device of gray-scale intensity |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 710075 DEF101, Zero One Square, Xi'an Software Park, No. 72 Zhangbajie Science and Technology Second Road, Xi'an High-tech Zone, Shaanxi Province Patentee after: XI'AN NOVASTAR TECH Co.,Ltd. Address before: 710075 Qinfengge D District 401, Xi'an Software Park, 68 Science and Technology Second Road, Xi'an High-tech Zone, Shaanxi Province Patentee before: Xi'an NovaStar Tech Co.,Ltd. |