CN102820018A - Color coordinate regulating method and device thereof - Google Patents
Color coordinate regulating method and device thereof Download PDFInfo
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Abstract
The invention discloses a color coordinate regulating method. The method comprises the steps of obtaining a color coordinate of a current display unit; comparing with a target value and determining a regulating direction of the color coordinate; choosing at least two types of colored light in red light, green light and blue light and enabling the chosen colored light to be regulating targets; determining a corresponding relationship between the color coordinate regulating direction and a colored light brightness value regulating direction; and regulating the brightness value of the selected colored light by using a numerical approximation method and regulating the color coordinate to the target value. Besides, the invention also discloses a color coordinate regulating device. According to the method and the device, the corresponding relationship between the color coordinate regulating direction and the colored light brightness value regulating direction is determined, the brightness value of the colored light is regulated through an approximation method, and the color coordinate is regulated to a target value. The original brightness of red, green and blue (RGB) and the color coordinate are not required to be measured, the color coordinate can be regulated in real time, the method and the device are convenient, the regulating accuracy of the color coordinate can be quantized, the accuracy ranged can be set, and the regulating can be achieved flexibly.
Description
Technical field
The present invention relates to color adjustment technology field, relate in particular to a kind of chromaticity coordinates method of adjustment and a kind of chromaticity coordinates adjusting gear.
Background technology
In actual production and using, need adjust accurately the chromaticity coordinates of display unit.The adjustment of chromaticity coordinates relates to the proportionate relationship of RGB, confirms original brightness and the chromaticity coordinates of RGB as adopting computing method to come that chromaticity coordinates is adjusted needs, and then by the proportionate relationship input display unit that calculates.In case behind the proportionate relationship of this way RGB input display unit, then the chromaticity coordinates of display unit is just definite, can't adjust once more and precision set.And, because therefore the original brightness of test RGB and the precision that chromaticity coordinates depends on surveying instrument adopt this method also to exist inconvenient and the uncontrollable problem of error of realizing.
Summary of the invention
For solving the problem of above-mentioned existence, the invention provides a kind of chromaticity coordinates method of adjustment and a kind of chromaticity coordinates adjusting gear.
A kind of chromaticity coordinates method of adjustment may further comprise the steps:
Obtain the chromaticity coordinates of current display unit;
Display unit chromaticity coordinates and the desired value obtained are compared, confirm the adjustment direction of chromaticity coordinates;
In ruddiness, green glow and three kinds of coloured light of blue light, select at least two kinds of coloured light as the adjustment object;
According to the coloured light of selecting, confirm the corresponding relation between chromaticity coordinates adjustment direction and the coloured light brightness value adjustment direction;
According to above-mentioned definite corresponding relation and chromaticity coordinates adjustment direction, the method that adopts numerical value to approach is adjusted the brightness value of selected coloured light, and chromaticity coordinates is adjusted to desired value.
Compare with general technology, chromaticity coordinates method of adjustment provided by the present invention is through confirming the corresponding relation between chromaticity coordinates adjustment direction and the coloured light brightness value adjustment direction, and the method for taking to approach is adjusted the brightness value of coloured light, and then chromaticity coordinates is adjusted to desired value.Do not need original brightness and the chromaticity coordinates of measure R GB, can adjust chromaticity coordinates in real time, more convenient.And can the precision of chromaticity coordinates adjustment be quantized, accuracy rating can be established, and adjusts comparatively flexible.
In addition, also disclose a kind of chromaticity coordinates adjusting gear, comprised chromaticity coordinates acquisition module, chromaticity coordinates adjustment direction determination module, coloured light selection module, corresponding relation determination module and chromaticity coordinates adjusting module;
Said chromaticity coordinates acquisition module is used to obtain the chromaticity coordinates of current display unit;
Said chromaticity coordinates adjustment direction determination module is used for display unit chromaticity coordinates and the desired value obtained are compared, and confirms the adjustment direction of chromaticity coordinates;
Said coloured light selects module to be used at ruddiness, green glow and three kinds of coloured light of blue light, selects at least two kinds of coloured light as the adjustment object;
Said corresponding relation determination module is used for according to the coloured light of selecting, and confirms the corresponding relation between chromaticity coordinates adjustment direction and the coloured light brightness value adjustment direction;
Said chromaticity coordinates adjusting module is used for according to above-mentioned definite corresponding relation and chromaticity coordinates adjustment direction, and the method that adopts numerical value to approach is adjusted the brightness value of selected coloured light, and chromaticity coordinates is adjusted to desired value.
Compare with general technology, chromaticity coordinates adjusting gear provided by the present invention is through confirming the corresponding relation between chromaticity coordinates adjustment direction and the coloured light brightness value adjustment direction, and the method for taking to approach is adjusted the brightness value of coloured light, and then chromaticity coordinates is adjusted to desired value.Do not need original brightness and the chromaticity coordinates of measure R GB, can adjust chromaticity coordinates in real time, more convenient.And can the precision of chromaticity coordinates adjustment be quantized, accuracy rating can be established, and adjusts comparatively flexible.
Description of drawings
Fig. 1 is the schematic flow diagram of chromaticity coordinates method of adjustment of the present invention;
Fig. 2 is the structural representation of chromaticity coordinates adjusting gear of the present invention.
Embodiment
Be further set forth the present invention technological means of being taked and the effect that obtains,,, know and complete description technical scheme of the present invention below in conjunction with accompanying drawing and preferred embodiment.
See also Fig. 1, be the schematic flow diagram of chromaticity coordinates method of adjustment of the present invention.Chromaticity coordinates method of adjustment of the present invention may further comprise the steps:
S101 obtains the chromaticity coordinates of current display unit;
At first to obtain the chromaticity coordinates of current display unit.Can adopt the chroma-luminance meter to gather the current chromaticity coordinates of display unit.
S102 compares display unit chromaticity coordinates and the desired value obtained, confirms the adjustment direction of chromaticity coordinates;
Display unit chromaticity coordinates and the desired value obtained are compared, can confirm the adjustment direction or the trend of chromaticity coordinates.When adjustment, choose rational resize ratio, can the display unit chromaticity coordinates be adjusted to target zone.
S103 selects at least two kinds of coloured light as the adjustment object in ruddiness, green glow and three kinds of coloured light of blue light;
In ruddiness, green glow and three kinds of coloured light of blue light, select at least two kinds of coloured light as the adjustment object.
Preferably, can select ruddiness and blue light as the adjustment object.In the process of adjustment, the brightness of green glow is not adjusted, can be kept the brightness of display.
S104 confirms the corresponding relation between chromaticity coordinates adjustment direction and the coloured light brightness value adjustment direction according to the coloured light of selecting;
According to coloured light and CIE 1931 standard colorimetric systems selected, can confirm the corresponding relation between chromaticity coordinates adjustment direction and the coloured light brightness value adjustment direction.
For example, if select ruddiness and blue light as the adjustment object, then corresponding relation is as follows:
(x y) compares with desired value with chromaticity coordinates;
If x value and y value are all bigger than normal, then increase the brightness value of ruddiness and blue light;
If the x value is less than normal, the y value is bigger than normal, then increases the brightness value of ruddiness;
If the x value is bigger than normal, the y value is less than normal, then increases the brightness value of blue light;
If x value and y value are all less than normal, then reduce the brightness value of ruddiness and blue light;
If only the y value is less than normal, then reduce the brightness value of ruddiness and blue light;
If only the y value is bigger than normal, then increase the brightness value of ruddiness and blue light;
If only the x value is less than normal, then increase the brightness value of ruddiness;
If only the x value is bigger than normal, then increase the brightness value of blue light.
S105 is according to above-mentioned definite corresponding relation and chromaticity coordinates adjustment direction, and the method that adopts numerical value to approach is adjusted the brightness value of selected coloured light, and chromaticity coordinates is adjusted to desired value.
According to chromaticity coordinates adjustment direction,, can confirm the adjustment direction of coloured light brightness value according to the corresponding relation between chromaticity coordinates adjustment direction and the coloured light brightness value adjustment direction;
According to the adjustment direction of the coloured light brightness value of confirming, the method that can adopt numerical value to approach is adjusted the brightness value of selected coloured light, and chromaticity coordinates is adjusted to desired value.
According to the adjustment direction of the coloured light brightness value of confirming, the brightness value of the method adjustment coloured light of taking to approach is adjusted to desired value with chromaticity coordinates.The benefit of doing like this is to pass through the brightness value of adjustment coloured light, and then realizes the purpose of adjustment chromaticity coordinates, and the brightness value of adjustment coloured light is more easy and simple.
As one of them embodiment, can chromaticity coordinates be adjusted to desired value by following approach method:
Step 1: the brightness value of coloured light is adjusted execution in step 2 after accomplishing according to setting step-length;
Step 2: obtain the adjusted chromaticity coordinates of coloured light brightness value, judge that it is whether in target zone; If the adjusted chromaticity coordinates of coloured light brightness value in target zone, is then preserved adjusted coloured light brightness value; If the adjusted chromaticity coordinates of coloured light brightness value is not in target zone, then execution in step 3;
Step 3: judge according to setting step-length and check colors after brightness values adjusts once more whether chromaticity coordinates surpasses target zone; If do not surpass target zone, then execution in step 1; If surpass target zone, then execution in step 4;
Step 4: current setting step-length is reduced by half as new setting step-length, and judge that whether new setting step-length is less than preset minimum step; If be not less than preset minimum step, then execution in step 1; If less than preset minimum step, then execution in step 5;
Step 5: with preset minimum step as new setting step-length, execution in step 1 after accomplishing.
Can gather the chromaticity coordinates of display unit through the chroma-luminance meter, after having confirmed the direction that chromaticity coordinates need be adjusted, constantly adjust the brightness value of coloured light according to said method, the brightness value of ruddiness and blue light for example, then the chromaticity coordinates of display unit changes thereupon.More than operation forms the process of approaching gradually of a closed loop, adjusts in the target zone up to the chromaticity coordinates of display unit.
What above-mentioned approach method adopted is dichotomy.According to dichotomy chromaticity coordinates is adjusted, carried out the adjustment of bigger step-length earlier, carry out the adjustment of little step-length again, until approaching of final completion chromaticity coordinates, the precision of this method and the precision of detecting instrument have relation.As adopt high-precision instrument, can reach 0.002 accuracy rating.
Compare with general technology, chromaticity coordinates method of adjustment provided by the present invention is through confirming the corresponding relation between chromaticity coordinates adjustment direction and the coloured light brightness value adjustment direction, and the method for taking to approach is adjusted the brightness value of coloured light, and then chromaticity coordinates is adjusted to desired value.Do not need original brightness and the chromaticity coordinates of measure R GB, can adjust chromaticity coordinates in real time, more convenient.And can the precision of chromaticity coordinates adjustment be quantized, accuracy rating can be established, and adjusts comparatively flexible.
In addition, also announced a kind of chromaticity coordinates adjusting gear.
See also Fig. 2, be the structural representation of chromaticity coordinates adjusting gear of the present invention.Chromaticity coordinates adjusting gear of the present invention comprises chromaticity coordinates acquisition module 201, chromaticity coordinates adjustment direction determination module 202, coloured light selection module 203, corresponding relation determination module 204 and chromaticity coordinates adjusting module 205;
Said chromaticity coordinates acquisition module 201 is used to obtain the chromaticity coordinates of current display unit;
Said chromaticity coordinates adjustment direction determination module 202 is used for display unit chromaticity coordinates and the desired value obtained are compared, and confirms the adjustment direction of chromaticity coordinates;
Display unit chromaticity coordinates and the desired value obtained are compared, can confirm the adjustment direction or the trend of chromaticity coordinates.When adjustment, choose rational resize ratio, can the display unit chromaticity coordinates be adjusted to target zone.
Said coloured light selects module 203 to be used at ruddiness, green glow and three kinds of coloured light of blue light, selects at least two kinds of coloured light as the adjustment object;
As one of them embodiment, said coloured light selects module can select ruddiness and blue light as the adjustment object.In the process of adjustment, the brightness of green glow is not adjusted, can be kept the brightness of display.
Said corresponding relation determination module 204 is used for according to the coloured light of selecting, and confirms the corresponding relation between chromaticity coordinates adjustment direction and the coloured light brightness value adjustment direction;
According to coloured light and CIE 1931 standard colorimetric systems selected, can confirm the corresponding relation between chromaticity coordinates adjustment direction and the coloured light brightness value adjustment direction.
Said chromaticity coordinates adjusting module 205 is used for according to above-mentioned definite corresponding relation and chromaticity coordinates adjustment direction, and the method that adopts numerical value to approach is adjusted the brightness value of selected coloured light, and chromaticity coordinates is adjusted to desired value.
Said chromaticity coordinates adjusting module 205 further comprises coloured light brightness value adjustment direction determination module and approaches adjusting module;
Said coloured light brightness value adjustment direction determination module is used for according to chromaticity coordinates adjustment direction, according to the corresponding relation between chromaticity coordinates adjustment direction and the coloured light brightness value adjustment direction, confirms the adjustment direction of coloured light brightness value;
The said adjusting module that approaches is used for the adjustment direction according to the coloured light brightness value of confirming, the method that adopts numerical value to approach is adjusted the brightness value of selected coloured light, and chromaticity coordinates is adjusted to desired value.
The benefit of doing like this is to adjust chromaticity coordinates through the brightness value of adjustment coloured light, and the brightness value of adjustment coloured light is more or less freely and simple.
Distribution of color according to CIE 1931 judges that the relation of chromaticity coordinates and desired value is confirmed the direction or the trend of adjustment.When adjustment, choose rational resize ratio, can the display unit chromaticity coordinates be adjusted to target zone.Can gather the chromaticity coordinates of display unit through the chroma-luminance meter; After having confirmed the direction that chromaticity coordinates need be adjusted; Constantly adjust the brightness value of coloured light according to approach method, the brightness value of ruddiness and blue light for example, then the chromaticity coordinates of display unit changes thereupon; Form the process of approaching gradually of a closed loop, adjust in the target zone up to the chromaticity coordinates of display unit.
Compare with general technology, chromaticity coordinates adjusting gear provided by the present invention is through confirming the corresponding relation between chromaticity coordinates adjustment direction and the coloured light brightness value adjustment direction, and the method for taking to approach is adjusted the brightness value of coloured light, and then chromaticity coordinates is adjusted to desired value.Do not need original brightness and the chromaticity coordinates of measure R GB, can adjust chromaticity coordinates in real time, more convenient.And can the precision of chromaticity coordinates adjustment be quantized, accuracy rating can be established, and adjusts comparatively flexible.
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 (8)
1. a chromaticity coordinates method of adjustment is characterized in that, may further comprise the steps:
Obtain the chromaticity coordinates of current display unit;
Display unit chromaticity coordinates and the desired value obtained are compared, confirm the adjustment direction of chromaticity coordinates;
In ruddiness, green glow and three kinds of coloured light of blue light, select at least two kinds of coloured light as the adjustment object;
According to the coloured light of selecting, confirm the corresponding relation between chromaticity coordinates adjustment direction and the coloured light brightness value adjustment direction;
According to above-mentioned definite corresponding relation and chromaticity coordinates adjustment direction, the method that adopts numerical value to approach is adjusted the brightness value of selected coloured light, and chromaticity coordinates is adjusted to desired value.
2. chromaticity coordinates method of adjustment according to claim 1 is characterized in that, selects ruddiness and blue light as the adjustment object.
3. chromaticity coordinates method of adjustment according to claim 2 is characterized in that, the step of the corresponding relation between said definite chromaticity coordinates adjustment direction and the coloured light brightness value adjustment direction may further comprise the steps:
(x y) compares with desired value with chromaticity coordinates;
If x value and y value are all bigger than normal, then increase the brightness value of ruddiness and blue light;
If the x value is less than normal, the y value is bigger than normal, then increases the brightness value of ruddiness;
If the x value is bigger than normal, the y value is less than normal, then increases the brightness value of blue light;
If x value and y value are all less than normal, then reduce the brightness value of ruddiness and blue light;
If only the y value is less than normal, then reduce the brightness value of ruddiness and blue light;
If only the y value is bigger than normal, then increase the brightness value of ruddiness and blue light;
If only the x value is less than normal, then increase the brightness value of ruddiness;
If only the x value is bigger than normal, then increase the brightness value of blue light.
4. chromaticity coordinates method of adjustment according to claim 1 is characterized in that, the method that said employing numerical value approaches is adjusted the brightness value of selected coloured light, and chromaticity coordinates is adjusted to the step of desired value, may further comprise the steps:
According to chromaticity coordinates adjustment direction,, confirm the adjustment direction of coloured light brightness value according to the corresponding relation between chromaticity coordinates adjustment direction and the coloured light brightness value adjustment direction;
According to the adjustment direction of the coloured light brightness value of confirming, the method that adopts numerical value to approach is adjusted the brightness value of selected coloured light, and chromaticity coordinates is adjusted to desired value.
5. chromaticity coordinates method of adjustment according to claim 1 is characterized in that, the method that said employing numerical value approaches is adjusted the brightness value of selected coloured light, and chromaticity coordinates is adjusted to the step of desired value, may further comprise the steps:
Step 1: the brightness value of coloured light is adjusted execution in step 2 after accomplishing according to setting step-length;
Step 2: obtain the adjusted chromaticity coordinates of coloured light brightness value, judge that it is whether in target zone; If the adjusted chromaticity coordinates of coloured light brightness value in target zone, is then preserved adjusted coloured light brightness value; If the adjusted chromaticity coordinates of coloured light brightness value is not in target zone, then execution in step 3;
Step 3: judge according to setting step-length and check colors after brightness values adjusts once more whether chromaticity coordinates surpasses target zone; If do not surpass target zone, then execution in step 1; If surpass target zone, then execution in step 4;
Step 4: current setting step-length is reduced by half as new setting step-length, and judge that whether new setting step-length is less than preset minimum step; If be not less than preset minimum step, then execution in step 1; If less than preset minimum step, then execution in step 5;
Step 5: with preset minimum step as new setting step-length, execution in step 1 after accomplishing.
6. a chromaticity coordinates adjusting gear is characterized in that, comprises chromaticity coordinates acquisition module, chromaticity coordinates adjustment direction determination module, coloured light selection module, corresponding relation determination module and chromaticity coordinates adjusting module;
Said chromaticity coordinates acquisition module is used to obtain the chromaticity coordinates of current display unit;
Said chromaticity coordinates adjustment direction determination module is used for display unit chromaticity coordinates and the desired value obtained are compared, and confirms the adjustment direction of chromaticity coordinates;
Said coloured light selects module to be used at ruddiness, green glow and three kinds of coloured light of blue light, selects at least two kinds of coloured light as the adjustment object;
Said corresponding relation determination module is used for according to the coloured light of selecting, and confirms the corresponding relation between chromaticity coordinates adjustment direction and the coloured light brightness value adjustment direction;
Said chromaticity coordinates adjusting module is used for according to above-mentioned definite corresponding relation and chromaticity coordinates adjustment direction, and the method that adopts numerical value to approach is adjusted the brightness value of selected coloured light, and chromaticity coordinates is adjusted to desired value.
7. chromaticity coordinates adjusting gear according to claim 6 is characterized in that, said coloured light selects module to select ruddiness and blue light as the adjustment object.
8. chromaticity coordinates adjusting gear according to claim 6 is characterized in that, said chromaticity coordinates adjusting module further comprises coloured light brightness value adjustment direction determination module and approaches adjusting module;
Said coloured light brightness value adjustment direction determination module is used for according to chromaticity coordinates adjustment direction, according to the corresponding relation between chromaticity coordinates adjustment direction and the coloured light brightness value adjustment direction, confirms the adjustment direction of coloured light brightness value;
The said adjusting module that approaches is used for the adjustment direction according to the coloured light brightness value of confirming, the method that adopts numerical value to approach is adjusted the brightness value of selected coloured light, and chromaticity coordinates is adjusted to desired value.
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| CN110767197B (en) * | 2019-01-31 | 2021-03-26 | 昆山国显光电有限公司 | Display control method, difference information determination device, and display device |
| CN110277048A (en) * | 2019-06-10 | 2019-09-24 | 惠州市华星光电技术有限公司 | Display device and the method for adjusting display device color difference |
| CN110267404A (en) * | 2019-08-14 | 2019-09-20 | 杭州新湖电子有限公司 | A kind of the high-precision control module and method of light source |
| WO2023184176A1 (en) * | 2022-03-29 | 2023-10-05 | 京东方科技集团股份有限公司 | Image quality calibration method, system, and storage medium |
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