CN108257572A - A kind of chromaticity coordinates calibration method, device and system - Google Patents
A kind of chromaticity coordinates calibration method, device and system Download PDFInfo
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- CN108257572A CN108257572A CN201810180551.9A CN201810180551A CN108257572A CN 108257572 A CN108257572 A CN 108257572A CN 201810180551 A CN201810180551 A CN 201810180551A CN 108257572 A CN108257572 A CN 108257572A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0666—Adjustment of display parameters for control of colour parameters, e.g. colour temperature
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0693—Calibration of display systems
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Abstract
The embodiment of the invention discloses a kind of chromaticity coordinates calibration method, device and system, the chromaticity coordinates calibration method includes：Control terminal enters calibration mode；After the terminal enters calibration mode, the chromaticity coordinates of the display screen of terminal is obtained；When judging to need to calibrate the chromaticity coordinates of the display screen, the corresponding acquiescence color temperature levels of at least one predetermined luminance grade of the display screen are determined, the corresponding acquiescence color temperature levels of at least one predetermined luminance grade are sent to the terminal.The application realizes the calibration to the chromaticity coordinates of display screen by adjusting the corresponding acquiescence color temperature levels of at least one predetermined luminance grade of display screen, the tone difference between the display screen of terminal is reduced, ensures that the consistency of the display effect between the display screen of terminal.
Description
Technical field
The present invention relates to terminal technology, espespecially a kind of chromaticity coordinates calibration method, device and system.
Background technology
Display screen is most of or using liquid crystal display at present, and this plane belongs to the screen passively to shine, tone
The tone of backlight is depended primarily on, and backlight is carried on the back using light emitting diode (LED, Light Emitting Diode) now
Light, for example, LED product adds yellow fluorescence to compose white light using blue chip, due to raw material blue light used in LED product
Chip wavelength can be there are certain fluctuation range, while the deal of fluorescent glue is influenced also not by dispensing board error in every product
It is identical, therefore the spectrum of each LED product is variant.The management and control tolerance of the chromaticity coordinates of country's industry LED backlight at present
Be 0.03, this range be it is very big, it is bad so as to cause the display effect consistency between the display screen of terminal.However mesh
Preceding effective method not yet solves the problems, such as the tone difference between the display screen of terminal.
Invention content
An embodiment of the present invention provides a kind of chromaticity coordinates calibration methods, can reduce the hue difference between the display screen of terminal
It is different, so that it is guaranteed that the consistency of the display effect between the display screen of terminal.
An embodiment of the present invention provides a kind of chromaticity coordinates calibration method, including：
Control terminal enters calibration mode；
After the terminal enters calibration mode, the chromaticity coordinates of the display screen of terminal is obtained；
When judging to need to calibrate the chromaticity coordinates of the display screen, at least one pre- of the display screen is determined
If the corresponding acquiescence color temperature levels of brightness degree, the corresponding acquiescence color temperature levels of at least one predetermined luminance grade are sent
To the terminal.
Optionally, it is described to judge to need that the chromaticity coordinates of display screen calibrate to include：
When the terminal includes a display screen, the chromaticity coordinates of the display screen and target color coordinates region are compared
It is right, when the chromaticity coordinates of display screen is not in the target color coordinates region, judge to need the chromaticity coordinates to the display screen
It is calibrated；Wherein, the target color coordinates region be comprising target color coordinates value and with the target color coordinates value away from
Region from all chromaticity coordinates values less than or equal to predetermined threshold value；
Alternatively, when the terminal includes two display screens, the chromaticity coordinates of two display screens is compared, when two institutes
When stating the distance of the chromaticity coordinates of display screen more than predetermined threshold value, judge to need to calibrate the chromaticity coordinates of the display screen；
Alternatively, when the terminal includes three or three or more display screens, the chromaticity coordinates of all display screens is compared
It is right, when there are during two display screens that the distance of chromaticity coordinates is more than predetermined threshold value, judge to need the color seat to the display screen
Mark is calibrated.
Optionally, the corresponding acquiescence color temperature levels of at least one predetermined luminance grade of the determining display screen include：
It is corresponding to obtain corresponding part or all of color temperature levels under at least one predetermined luminance grade of the display screen
Chromaticity coordinates；
Determine the corresponding acquiescence color temperature levels of each described predetermined luminance grade；
Wherein, it is described acquiescence color temperature levels for it is following any one：
When N is 1, chromaticity coordinates and the color temperature levels of the distance minimum of target color coordinates value；
When N is greater than or equal to 2, the color temperature levels of N number of display screen of the distance minimum of chromaticity coordinates；Wherein, N is described aobvious
The number of display screen.
Optionally, before the corresponding acquiescence color temperature levels of each described determining predetermined luminance grade, the determining display
The corresponding acquiescence color temperature levels of at least one predetermined luminance grade of screen further include：
Adjust the lowest color temperature grade of at least one display screen and/or the corresponding at least one base of highest color temperature levels
The ratio value of coloured light corresponds to the lowest color temperature grade of at least one display screen after adjustment and/or highest color temperature levels
The ratio values of at least one primary lights be sent to the terminal.
The embodiment of the present invention proposes a kind of chromaticity coordinates calibrating installation, including：
Control module enters calibration mode for control terminal；
Acquisition module, for after the terminal enters calibration mode, obtaining the chromaticity coordinates of the display screen of terminal；
Calibration module, for when judging to need to calibrate the chromaticity coordinates of the display screen, determining the display
The corresponding acquiescence color temperature levels of at least one predetermined luminance grade of screen, at least one predetermined luminance grade is corresponding silent
Recognize color temperature levels and be sent to the terminal.
Optionally, the calibration module is specifically used for judging to need the color to display screen described in realization in the following ways
Coordinate is calibrated：
When the terminal includes a display screen, the chromaticity coordinates of the display screen and target color coordinates region are compared
It is right, when the chromaticity coordinates of display screen is not in the target color coordinates region, judge to need the chromaticity coordinates to the display screen
It is calibrated；Wherein, the target color coordinates region be comprising target color coordinates value and with the target color coordinates value away from
Region from all chromaticity coordinates values less than or equal to predetermined threshold value；
Alternatively, when the terminal includes two display screens, the chromaticity coordinates of two display screens is compared, when two institutes
When stating the distance of the chromaticity coordinates of display screen more than predetermined threshold value, judge to need to calibrate the chromaticity coordinates of the display screen；
Alternatively, when the terminal includes three or three or more display screens, the chromaticity coordinates of all display screens is compared
It is right, when there are during two display screens that the distance of chromaticity coordinates is more than predetermined threshold value, judge to need the color seat to the display screen
Mark is calibrated.
Optionally, the calibration module is specifically used for realizing at least one pre- of the determining display screen in the following ways
If the corresponding acquiescence color temperature levels of brightness degree：
It is corresponding to obtain corresponding part or all of color temperature levels under at least one predetermined luminance grade of the display screen
Chromaticity coordinates；
Determine the corresponding acquiescence color temperature levels of each described predetermined luminance grade；
Wherein, it is described acquiescence color temperature levels for it is following any one：
When N is 1, chromaticity coordinates and the color temperature levels of the distance minimum of target color coordinates value；
When N is greater than or equal to 2, the color temperature levels of N number of display screen of the distance minimum of chromaticity coordinates；Wherein, N is described aobvious
The number of display screen.
Optionally, the calibration module is additionally operable to：
Adjust the lowest color temperature grade of at least one display screen and/or the corresponding at least one base of highest color temperature levels
The ratio value of coloured light corresponds to the lowest color temperature grade of at least one display screen after adjustment and/or highest color temperature levels
The ratio values of at least one primary lights be sent to the terminal.
The embodiment of the present invention proposes a kind of chromaticity coordinates calibrating installation, including processor and computer readable storage medium,
Instruction is stored in the computer readable storage medium, when described instruction is performed by the processor, is realized any of the above-described
Kind chromaticity coordinates calibration method.
The embodiment of the present invention proposes a kind of computer readable storage medium, is stored thereon with computer program, the meter
The step of calculation machine program realizes any of the above-described kind of chromaticity coordinates calibration method when being executed by processor.
Compared with prior art, the present invention includes：Control terminal enters calibration mode；Enter calibration mode in the terminal
Afterwards, the chromaticity coordinates of the display screen of terminal is obtained；When judging to need to the display screen according to the chromaticity coordinates of the display screen
When chromaticity coordinates is calibrated, the corresponding acquiescence color temperature levels of at least one predetermined luminance grade of the display screen are determined, by institute
It states the corresponding acquiescence color temperature levels of at least one predetermined luminance grade and is sent to the terminal.The application is by adjusting display screen
The corresponding acquiescence color temperature levels of at least one predetermined luminance grade realize the calibration to the chromaticity coordinates of display screen, reduce terminal
Display screen between tone difference, ensure that the consistency of the display effect between the display screen of terminal.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that being understood by implementing the present invention.The purpose of the present invention and other advantages can be by specification, rights
Specifically noted structure is realized and is obtained in claim and attached drawing.
Description of the drawings
Attached drawing is used for providing further understanding technical solution of the present invention, and a part for constitution instruction, with this
The embodiment of application technical solution for explaining the present invention together, does not form the limitation to technical solution of the present invention.
Fig. 1 is the flow chart of the application chromaticity coordinates calibration method；
Fig. 2 is the structure composition schematic diagram of the application terminal；
Fig. 3 is color temperature levels-chromaticity coordinates curve synoptic diagram of the application A screens and B screens；
Fig. 4 is color temperature levels-chromaticity coordinates curve synoptic diagram of the A screens and B screens after the application adjustment；
Fig. 5 is the flow chart of the application first embodiment chromaticity coordinates calibration method；
Fig. 6 is the flow chart of the application second embodiment chromaticity coordinates calibration method；
Fig. 7 is the flow chart of the application 3rd embodiment chromaticity coordinates calibration method；
Fig. 8 is the structure composition schematic diagram of the application chromaticity coordinates calibrating installation；
Fig. 9 is the structure composition schematic diagram of the application chromaticity coordinates calibration system.
Specific embodiment
The embodiment of the present invention is described in detail below in conjunction with attached drawing.It should be noted that do not conflicting
In the case of, the feature in embodiment and embodiment in the application mutually can be combined arbitrarily.
Step shown in the flowchart of the accompanying drawings can be in the computer system of such as a group of computer-executable instructions
It performs.Also, although logical order is shown in flow charts, it in some cases, can be to be different from herein suitable
Sequence performs shown or described step.
Referring to Fig. 1, present applicant proposes a kind of chromaticity coordinates calibration method, including：
Step 100, control terminal enter calibration mode.
In the application, terminal can be following any：PC (PC, Personal Computer), movement are eventually
End, PAD etc..
Above-mentioned terminal can include a display screen or two display screens or more than two display screens.Fig. 2 is this
Apply for the structure composition schematic diagram of terminal.As shown in Fig. 2, terminal includes：CPU, N number of display screen；Wherein, N is more than or equal to 1
Integer.Optionally, terminal further includes at least one of：Memory, sensor, other peripheral hardwares.
In the application, various ways control terminal may be used and enter calibration mode.For example, pass through the sending alignment under terminal
The mode of instruction carrys out control terminal and enters calibration mode.Terminal controls all display screen display acquiescence colors after receiving calibration command
Colored picture to be calibrated under warm grade；Wherein, color to be calibrated can be following any：White, red, green, blue
Deng, and set display screen backlight brightness degree be predetermined luminance grade.
Optionally, above-mentioned predetermined luminance grade can be any one brightness degree, for example, maximum brightness grade.
Optionally, above-mentioned predetermined luminance grade can be included in calibration command.
Step 101, after terminal enters calibration mode, obtain the chromaticity coordinates of the display screen of terminal.
In the application, can by way of controlling color analysis instrument all display screens of detection terminal chromaticity coordinates.
In the application, chromaticity coordinates includes x-axis coordinate and y-axis coordinate, i.e., (x, y).On a chromaticity diagram, chromaticity coordinates and color one
One corresponds to, while chromaticity coordinates is corresponded with color temperature levels.
Step 102, when judging to need to calibrate the chromaticity coordinates of display screen, determine at least the one of the display screen
The corresponding acquiescence color temperature levels of a predetermined luminance grade, by the corresponding acquiescence color temperature levels of at least one predetermined luminance grade
It is sent to the terminal.
In the application, when terminal includes a display screen, by the chromaticity coordinates of the display screen of acquisition and target color coordinates area
Domain is compared, and when the chromaticity coordinates of display screen is in target color coordinates region, does not need to carry out school to the chromaticity coordinates of display screen
It is accurate；When the chromaticity coordinates of display screen is not in target color coordinates region, need to calibrate the chromaticity coordinates of display screen.Wherein,
Target color coordinates region is is less than or equal to predetermined threshold value comprising target color coordinates value and with the distance of target color coordinates value
The region of all chromaticity coordinates values of (such as 1 ‰), chromaticity coordinates value of the target color coordinates value for standard color to be calibrated on chromatic diagram
Or the chromaticity coordinates value of customized color to be calibrated.
Wherein, the chromaticity coordinates of display screen refers to the chromaticity coordinates of display screen and target color coordinates value in target color coordinates region
Distance be less than or equal to predetermined threshold value.
When terminal includes two display screens, the chromaticity coordinates of two display screens is compared, when the color of two display screens
When the distance of coordinate is less than or equal to predetermined threshold value, do not need to calibrate the chromaticity coordinates of display screen；When two display screens
When the distance of chromaticity coordinates is more than predetermined threshold value, need to calibrate the chromaticity coordinates of display screen.
In the application, according to formulaCalculate the distance of two chromaticity coordinates；Wherein, (x1,
y1) for one of chromaticity coordinates, (x2, y2) it is another chromaticity coordinates.For example, (x1, y1) be display screen chromaticity coordinates, (x2, y2)
For target color coordinates value.For another example, (x1, y1) be the first display screen chromaticity coordinates, (x1, y1) be second display screen chromaticity coordinates.
When terminal includes three or three or more display screens, the chromaticity coordinates of all display screens is compared, works as presence
When the distance of chromaticity coordinates is more than two display screens of predetermined threshold value, judge to need to carry out school to the chromaticity coordinates of the display screen
It is accurate；When the chromaticity coordinates of any two display screen is respectively less than or during equal to predetermined threshold value, judge not needing to the color seat to display screen
Mark is calibrated.
For example, for the terminal of three display screens (being respectively A screens, B screens and C screens), the distance of three groups of chromaticity coordinates is calculated,
I.e.：Under predetermined luminance grade, when all display screens show the colored picture to be calibrated under acquiescence color temperature levels,
The distance between the chromaticity coordinates of A screens, chromaticity coordinates of B screens, are denoted as S1；
The distance between the chromaticity coordinates of A screens, chromaticity coordinates of C screens, are denoted as S2；
The distance between the chromaticity coordinates of B screens, chromaticity coordinates of C screens, are denoted as S3；
So, work as S1, S2And S3During respectively less than or equal to predetermined threshold value, judge not need to the chromaticity coordinates of display screen into
Row calibration, works as S1, S2Or S3During more than predetermined threshold value, judge to need to calibrate the chromaticity coordinates of display screen.
The corresponding acquiescence color temperature levels of at least one predetermined luminance grade that following methods determine display screen may be used：
The corresponding color of corresponding part or all of color temperature levels under at least one predetermined luminance grade of display screen is obtained to sit
Mark；Determine the corresponding acquiescence color temperature levels of each predetermined luminance grade.
Screen tone is excessively colder or excessively partially warm after calibrating in order to prevent, can be based on each predetermined luminance etc.
The corresponding chromaticity coordinates of color temperature levels of the corresponding intermediate region of grade determines the corresponding acquiescence color temperature levels of the predetermined luminance grade.Example
Such as, during a total of 256 color temperature levels of display screen, intermediate region can be selected as the color temperature levels of 97 color temperature levels~160.
Wherein, acquiescence color temperature levels for it is following any one：
When terminal includes a display screen, chromaticity coordinates and the color temperature levels of the distance minimum of target color coordinates value；
When terminal includes at least two display screens, the color temperature levels of N number of display screen of the distance minimum of chromaticity coordinates.
For example, when terminal includes two display screens, the color temperature levels of N number of display screen of the distance minimum of chromaticity coordinates refer to
MeetThe minimum color temperature levels of the first display screen and the color temperature levels of second display screen；Its
In, (x1, y1) be the first display screen the corresponding chromaticity coordinates of a certain color temperature levels, (x2, y2) be second display screen certain color temperature
The corresponding chromaticity coordinates of grade.
When terminal includes three or three or more display screens, colour temperature of N number of display screen of distance minimum of chromaticity coordinates etc.
Grade refers to that the distance of the chromaticity coordinates of any two display screen is less than or equal to predetermined threshold value, i.e.,It is small
In or equal to predetermined threshold value；For n display screen, wherein m ∈ [1, n], i ∈ [1, n]
Wherein it is possible to the part or complete of at least one predetermined luminance grade of the display screen of terminal is obtained in several ways
The corresponding chromaticity coordinates of portion's color temperature levels.For example, by way of issuing calibration command to terminal, i.e., issue the first calibration to terminal
Instruction, the first calibration command include the first brightness degree and the first color temperature levels；Terminal receives the first calibration command, the setting back of the body
The brightness degree of light source is the first brightness degree, shows the colored picture to be calibrated under the first color temperature levels, controls color analysis
The chromaticity coordinates of the display screen of instrument detection terminal；Continue to issue the second calibration command to terminal, it is bright that the second calibration command includes first
Spend grade and the second color temperature levels；Terminal receives the second calibration command, and the brightness degree for setting backlight is first brightness etc.
Grade shows the colored picture to be calibrated under the second color temperature levels, controls the chromaticity coordinates of the display screen of color analysis instrument detection terminal；
The corresponding chromaticity coordinates of part or all of color temperature levels until obtaining the first brightness degree.
Third calibration command is issued to terminal, third calibration command includes the second brightness degree and the first color temperature levels；Eventually
Termination receives third calibration command, and the brightness degree for setting backlight is the second brightness degree, is shown under the first color temperature levels
Colored picture to be calibrated controls the chromaticity coordinates of the display screen of color analysis instrument detection terminal；Continue to issue the 4th calibration to terminal
Instruction, the 4th calibration command include the second brightness degree and the second color temperature levels；Terminal receives the 4th calibration command, the setting back of the body
The brightness degree of light source is the second brightness degree, shows the colored picture to be calibrated under the second color temperature levels, controls color analysis
The chromaticity coordinates of the display screen of instrument detection terminal；The corresponding color of part or all of color temperature levels until obtaining the second brightness degree is sat
Mark.
And so on, the corresponding chromaticity coordinates of part or all of color temperature levels until obtaining all brightness degrees.
That is, the corresponding chromaticity coordinates of each color temperature levels is obtained using color analysis instrument detection, if terminal
There are M (such as 128,256 etc.) a color temperature levels, then the M institute that can obtain under a brightness degree is detected using color analysis instrument
There is the corresponding chromaticity coordinates of color temperature levels.
It is of course also possible to use the corresponding color of at least two color temperature levels that color analysis instrument detects same brightness degree is sat
Mark, the corresponding chromaticity coordinates of other color temperature levels of the brightness degree can according to the corresponding chromaticity coordinates of at least two color temperature levels into
Row interpolation obtains.
In the application, terminal receives the corresponding acquiescence color temperature levels of at least one predetermined luminance grade, preserves at least one
The corresponding acquiescence color temperature levels of a predetermined luminance grade, for example, by corresponding acquiescence colour temperature of at least one predetermined luminance grade etc.
Grade is saved in nonvolatile memory.After the brightness degree of backlight is set, by the corresponding acquiescence of the brightness degree of backlight
Color temperature levels are written in colour temperature register.If terminal receives the corresponding acquiescence color temperature levels of a predetermined luminance grade,
Acquiescence color temperature levels can be then written in colour temperature register.When being shown, terminal is according to the base for showing picture
The ratio value and acquiescence color temperature levels of coloured light calculate the actual ratio value for the primary lights for showing picture, the primary colours based on display picture
The actual ratio value of light is shown.
For example, if terminal is there are two display screen, respectively A screens and B screens, also, A screens and B screens have 128 colour temperatures etc.
Grade (the color temperature levels quantity of different producer's settings is different)；So, the brightness degree for setting the backlight of A screens and B screens is the
One brightness degree measures the corresponding chromaticity coordinates of 0~127 color temperature levels of A screens, respectively (x using color analysis instrumentA0, yA0),
(xA1, yA1) ... ..., (xA127, yA127)；The corresponding chromaticity coordinates of 0~127 color temperature levels of B screens is measured using color analysis instrument, respectively
For (xB0, yB0), (xB1, yB1) ... ..., (xB127, yB127)。
Using formulaCalculate the corresponding chromaticity coordinates of each color temperature levels and B of A screens
The distance of the corresponding chromaticity coordinates of each color temperature levels of screen；Wherein, (x1, y1) sat for the corresponding color of A screens some color temperature levels
Mark, (x2, y2) for the corresponding chromaticity coordinates of B screens some color temperature levels；Then the corresponding A of two chromaticity coordinates of selected distance minimum
The color temperature levels of screen and the color temperature levels of B screens, such as the corresponding chromaticity coordinates (x of the 60th color temperature levels of A screensA60, yA60) and B screens
Corresponding chromaticity coordinates (the x of 70th color temperature levelsB70, yB70) distance it is minimum, then by the of the 60th color temperature levels of A screens and B screens
70 color temperature levels are sent to terminal, after terminal receives the 60th color temperature levels of A screens and the 70th color temperature levels of B screens, by grade
60 are written in the acquiescence colour temperature register of A screens, and grade 70 is written in the acquiescence colour temperature register of B screens.
Above-mentioned chromaticity coordinates calibration process can be the calibration carried out in the same predetermined luminance grade of display screen, that is,
It says, obtains the color temperature levels of the distance minimum of chromaticity coordinates under the predetermined luminance grade, but under another predetermined luminance grade
The distance of the corresponding chromaticity coordinates of the color temperature levels might not be minimum.
It is thus necessary to determine that the color temperature levels of the distance minimum of the corresponding chromaticity coordinates of at least two predetermined luminance grades.This
Sample, terminal determine the need for resetting acquiescence color according to the brightness degree of the backlight of display screen when being shown
Warm grade.Specifically, when display screen backlight brightness degree in object brightness rate range when, do not need to reset silent
Recognize color temperature levels；When display screen backlight brightness degree not in object brightness rate range when, need reset give tacit consent to
Color temperature levels；Wherein, object brightness rate range is the brightness degree range comprising object brightness grade, and object brightness grade is
The corresponding brightness degree of acquiescence color temperature levels currently set.
When resetting acquiescence color temperature levels, it is first determined the object brightness belonging to the brightness degree of the backlight of display screen
Then rate range, in the correspondence between brightness degree range and acquiescence color temperature levels, searches the backlight of display screen
Acquiescence color temperature levels are set as what is found by the corresponding acquiescence color temperature levels of object brightness rate range belonging to brightness degree
Give tacit consent to color temperature levels.
In above-mentioned chromaticity coordinates calibration process, when the corresponding chromaticity coordinates of acquiescence color temperature levels and template under a certain brightness degree
The distance of chromaticity coordinates value is greater than or equal to the acquiescence colour temperature of the N number of display screen determined under predetermined threshold value or a certain brightness degree
When the distance of the corresponding chromaticity coordinates of grade is greater than or equal to predetermined threshold value, each corresponding acquiescence of predetermined luminance grade is being determined
Before color temperature levels, need first to adjust the lowest color temperature grade of at least one display screen and/or highest color temperature levels are corresponding extremely
A kind of few ratio value of primary lights so that the color temperature levels of all display screens-chromaticity coordinates curve intersection, by after adjustment at least
The lowest color temperature grade of one display screen and/or the ratio value of the corresponding at least one primary lights of highest color temperature levels are sent
To the terminal.
Specifically, when terminal includes two display screens, when the corresponding chromaticity coordinates of lowest color temperature grade of the first display screen
Y-coordinate (or x coordinate) more than the corresponding chromaticity coordinates of lowest color temperature grade of second display screen y-coordinate (or x coordinate), and
The y-coordinate (or x coordinate) of the corresponding chromaticity coordinates of highest color temperature levels of one display screen is more than highest colour temperature of second display screen etc.
During y-coordinate (or x coordinate) of the corresponding chromaticity coordinates of grade, the highest color temperature levels of the first display screen or second display screen can be adjusted
The ratio value of corresponding at least one primary lights so that the y-coordinate of the corresponding chromaticity coordinates of highest color temperature levels of the first display screen
(or x coordinate) is less than the y-coordinate (or x coordinate) of the corresponding chromaticity coordinates of highest color temperature levels of second display screen, then first is aobvious
Y-coordinate (or x coordinate) curve intersection of color temperature levels-chromaticity coordinates of display screen；
When the first display screen the corresponding chromaticity coordinates of lowest color temperature grade y-coordinate (or x coordinate) less than second display screen
The corresponding chromaticity coordinates of lowest color temperature grade y-coordinate (or x coordinate), and the corresponding color of highest color temperature levels of the first display screen
The y-coordinate (or x coordinate) of coordinate is less than the y-coordinate (or x coordinate) of the corresponding chromaticity coordinates of highest color temperature levels of second display screen
When, the ratio values of the corresponding at least one primary lights of highest color temperature levels of the first display screen or second display screen can be adjusted,
So that highest of the y-coordinate (or x coordinate) of the corresponding chromaticity coordinates of highest color temperature levels of the first display screen more than second display screen
The y-coordinate (or x coordinate) of the corresponding chromaticity coordinates of color temperature levels, then the y-coordinate of color temperature levels-chromaticity coordinates of the first display screen
(or x coordinate) curve intersection.
When terminal includes three or three or more display screens, the first display screen and second display screen are allowed using aforesaid way
Color temperature levels-chromaticity coordinates curve intersection so that the corresponding color of the acquiescence color temperature levels of the first display screen and second display screen is sat
Target distance is less than or equal to predetermined threshold value, then, the first display screen (or second display screen) and third is allowed using aforesaid way
The color temperature levels of display screen --- chromaticity coordinates curve intersection so that the first display screen (or second display screen) and third display screen
The distance for giving tacit consent to the corresponding chromaticity coordinates of color temperature levels is less than or equal to predetermined threshold value ... ..., and so on so that any two is shown
The color temperature levels of display screen-chromaticity coordinates curve is intersecting, and the corresponding chromaticity coordinates of acquiescence color temperature levels of any two display screen
Distance be less than or equal to predetermined threshold value.
If the distance after adjustment there are still the corresponding chromaticity coordinates of acquiescence color temperature levels is more than two displays of predetermined threshold value
Screen, then need to readjust color temperature levels-chromaticity coordinates curve.
For example, if terminal includes three display screens, respectively A screens, B screens and C screens, using aforesaid way by A screens and B screens
Color temperature levels-chromaticity coordinates curve intersection so that the distance of the corresponding chromaticity coordinates of acquiescence color temperature levels of A screens and B screens be less than or
Equal to predetermined threshold value, then using aforesaid way by the color temperature levels of A screens and C screens-chromaticity coordinates curve intersection so that A screens and C screens
The distance of the corresponding chromaticity coordinates of acquiescence color temperature levels be less than or equal to predetermined threshold value, finally, confirm the acquiescence color of B screens and C screens
Whether the distance of the corresponding chromaticity coordinates of warm grade is less than or equal to predetermined threshold value, if it is, calibration is completed；If it is not, then
Readjust color temperature levels-chromaticity coordinates curve of C screens so that the corresponding chromaticity coordinates of acquiescence color temperature levels of A screens and C screens away from
It is less than or equal to default threshold from the distance less than or equal to predetermined threshold value, the corresponding chromaticity coordinates of acquiescence color temperature levels of B screens and C screens
Value.Other situations and so on.
Terminal receives the lowest color temperature grade of at least one display screen and/or highest color temperature levels pair after adjustment
The ratio value of at least one primary lights answered, the lowest color temperature grade of at least one display screen after adjustment is corresponding extremely
A kind of ratio value setting of few primary lights, will be at least one described aobvious after adjustment to the lowest color temperature register of corresponding display screen
The highest colour temperature of ratio value setting to the corresponding display screen of the corresponding at least one primary lights of highest color temperature levels of display screen is deposited
Device.
Wherein, the ratio value of the corresponding at least one primary lights of lowest color temperature grade (or highest color temperature levels) of display screen
After adjustment, the corresponding chromaticity coordinates of lowest color temperature grade (or highest color temperature levels) also accordingly changes, in this way, color temperature levels-color is sat
Mark slope of a curve also accordingly changes, and therefore, the corresponding chromaticity coordinates of other color temperature levels also needs to redefine, i.e. other colour temperatures etc.
The corresponding chromaticity coordinates of grade can determine straight according to the corresponding chromaticity coordinates of lowest color temperature grade and the corresponding chromaticity coordinates of highest level
Line obtains.
Wherein, primary lights are red, blue, green.
Wherein, when the corresponding chromaticity coordinates of adjusting range of the ratio value of the corresponding at least one primary lights of lowest color temperature grade
Ranging from (A-offset1, B-offset1) to (A, B), the ratio value of the corresponding at least one primary lights of highest color temperature levels
The corresponding chromaticity coordinates of adjusting range ranging from (A, B) to (A+offset1, B+offset1)；Wherein, (A, B) is face to be calibrated
The reference color coordinate of color, offset1 and offset2 be corresponding adjusting range, can value be 0.16 when, ensure that calibration after
Tone will not be excessively colder or partially warm, improves calibration effect.For example, when the reference color coordinate of white picture is (0.3,0.32)
When, the corresponding chromaticity coordinates of adjusting range of the ratio value of the corresponding at least one primary lights of lowest color temperature grade is ranging from
(0.284,0.304) to (0.3,0.32), the adjusting range of the ratio value of the corresponding at least one primary lights of highest color temperature levels
Corresponding chromaticity coordinates ranging from (0.3,0.32) to (0.316,0.336).It is adjusted in the range of this, ensure that the color after calibration
Adjusting will not be excessively colder or partially warm, improves calibration effect.
For example, terminal includes two display screens, respectively A screens and B screens, Fig. 3 is color temperature levels-color seat of A screens and B screens
Curve synoptic diagram is marked, as shown in figure 3, x coordinate curve of the curve 1 for color temperature levels-chromaticity coordinates of A screens, curve 2 is the color of A screens
The y-coordinate curve of warm grade-chromaticity coordinates, x coordinate curve of the curve 3 for color temperature levels-chromaticity coordinates of B screens, curve 4 are B screens
Color temperature levels-chromaticity coordinates y-coordinate curve.
As can be seen from FIG. 3, the color temperature levels of A screens and B screens-chromaticity coordinates curve does not have intersection point, under 0~100 brightness degree
The minimum value of the distance of the chromaticity coordinates of A screens and the chromaticity coordinates of B screens is within 0.003, the color of A screens under 101~200 brightness degrees
The minimum value of the distance of the chromaticity coordinates of coordinate and B screens is within 0.002, the chromaticity coordinates and B of A screens under 201~255 brightness degrees
The minimum value of the distance of the chromaticity coordinates of screen is within 0.001.That is, the color of A screens is sat under only 201~255 brightness degrees
The minimum value of mark and the distance of the chromaticity coordinates of B screens is less than or equal to predetermined threshold value, the chromaticity coordinates and B of A screens under other brightness degrees
The minimum value of the distance of the chromaticity coordinates of screen is greater than or equal to predetermined threshold value.So, under 0~200 brightness degree after chromaticity coordinates calibration
Still it can not meet condition, at this moment, the lowest color temperature grade and/or highest color temperature levels that can adjust A screens and/or B screens correspond to
At least one primary lights ratio value so that the color temperature levels of A screens and B screens-chromaticity coordinates curve intersection.
As shown in figure 3, since the x coordinate of the corresponding chromaticity coordinates of lowest color temperature grade of A screens is less than lowest color temperature of B screens etc.
The x coordinate of the corresponding chromaticity coordinates of grade, the x coordinate of the corresponding chromaticity coordinates of highest color temperature levels of A screens are less than highest colour temperature of B screens etc.
The x coordinate of the corresponding chromaticity coordinates of grade, therefore, can adjust the RGB's of the corresponding chromaticity coordinates of highest color temperature levels of A screens or B screens
Ratio value so that the x coordinate of the corresponding chromaticity coordinates of highest color temperature levels of A screens is more than the corresponding color of highest color temperature levels of B screens
The x coordinate of coordinate, then the x coordinate curve intersection of color temperature levels-chromaticity coordinates of A screens, as shown in Figure 4；
Since the y-coordinate of the corresponding chromaticity coordinates of lowest color temperature grade of A screens is less than the corresponding color of lowest color temperature grade of B screens
The y-coordinate of coordinate, the y-coordinate of the corresponding chromaticity coordinates of highest color temperature levels of A screens are less than the corresponding color of highest color temperature levels of B screens
Therefore the y-coordinate of coordinate, can adjust the ratio value of the RGB of the corresponding chromaticity coordinates of highest color temperature levels of A screens or B screens so that
The y-coordinate of the corresponding chromaticity coordinates of highest color temperature levels of A screens is more than the y-coordinate of the corresponding chromaticity coordinates of highest color temperature levels of B screens,
So y-coordinate curve intersection of color temperature levels-chromaticity coordinates of A screens, as shown in Figure 4.
The chromaticity coordinates calibration method of the application is described in detail below by specific embodiment.
First embodiment
In the present embodiment, mobile terminal include a display screen, under maximum brightness grade to the chromaticity coordinates of display screen into
Row calibration, including：
Step 500, server controls mobile terminal enter calibration mode.
In this step, server issues calibration command to mobile terminal, and terminal receives control display screen after calibration command
Display acquiescence color temperature levels under white picture, and set display screen backlight brightness degree be maximum brightness grade.
Step 501, after mobile terminal enters calibration mode, server controls color analysis instrument detection mobile terminal it is aobvious
The chromaticity coordinates of display screen.
Step 502, server judge the chromaticity coordinates of display screen whether in target color coordinates region, if terminated
This flow；If it was not then continue to execute step 503.
In this step, target color coordinates region is small comprising target color coordinates value and with the distance of target color coordinates value
In or equal to predetermined threshold value (such as 1 ‰) all chromaticity coordinates values region, target color coordinates value treats school for standard on chromatic diagram
The chromaticity coordinates value of quasi- color.
The corresponding part or all of color temperature levels of maximum brightness grade that step 503, server obtain display screen are corresponding
Chromaticity coordinates.
Step 504, server calculate the chromaticity coordinates value of the corresponding chromaticity coordinates of each color temperature levels and reference white away from
From.
Step 505, server (give tacit consent to the color temperature levels of chromaticity coordinates and the distance minimum of the chromaticity coordinates value of reference white
Color temperature levels) it is sent to mobile terminal.
Step 506, mobile terminal the color temperature levels received are written in the colour temperature register of display screen, and based on colour temperature
Color temperature levels in register are shown.
In this step, when being shown, mobile terminal is according to the display RGB ratio values of picture and colour temperature register
In color temperature levels calculate show picture RGB actual ratio values, based on display picture RGB actual ratio values shown.
Second embodiment
In the present embodiment, mobile terminal includes two display screens, respectively A screens and B screens, to aobvious under maximum brightness grade
The chromaticity coordinates of display screen is calibrated, including：
Step 600, server controls mobile terminal enter calibration mode.
In this step, server issues calibration command to mobile terminal, and terminal receives control A screens and B after calibration command
Screen show the white picture under acquiescence color temperature levels, and it is maximum brightness etc. to set the brightness degree of the backlight of A screens and B screens
Grade.
Step 601, after mobile terminal enters calibration mode, server controls color analysis instrument detection mobile terminal it is aobvious
The chromaticity coordinates of display screen.
Step 602, server judge whether the distance of the chromaticity coordinates of A screens and the chromaticity coordinates of B screens is less than or equal to default threshold
Value, if it is, terminating this flow；If it is not, then continue to execute step 603.
The corresponding part or all of color temperature levels of maximum brightness grade that step 603, server obtain A screens and B screens correspond to
Chromaticity coordinates.
Step 604, server calculate the corresponding chromaticity coordinates of each color temperature levels of A screens and each colour temperature of B screens etc.
The distance of the corresponding chromaticity coordinates of grade.
The color temperature levels of the minimum corresponding A screens of two chromaticity coordinates of distance (are given tacit consent to colour temperature etc. by step 605, server
Grade) and the color temperature levels (giving tacit consent to color temperature levels) of B screens be sent to mobile terminal.
Step 606, mobile terminal the color temperature levels of A screens are written in the colour temperature register of A screens, by the color temperature levels of B screens
It is written in the colour temperature register of B screens；And the color temperature levels in the colour temperature register and the colour temperature register of B screens based on A screens carry out
Display.
In this step, when being shown, mobile terminal is according to the RGB ratio values and A screens of the display picture of A screens
Color temperature levels in colour temperature register calculate the RGB actual ratio values of the display picture of A screens, the RGB of the display picture based on A screens
Actual ratio value is shown；According to the color temperature levels in the RGB ratio values of display picture and the colour temperature register of B screens of B screens
The RGB actual ratio values of the display picture of B screens are calculated, the RGB actual ratio values of the display picture based on B screens are shown.
3rd embodiment
In the present embodiment, mobile terminal includes two display screens, respectively A screens and B screens, under three different brightness degrees
The chromaticity coordinates of display screen is calibrated, including：
Step 700, server controls mobile terminal enter calibration mode.
In this step, server issues calibration command to mobile terminal, and terminal receives control A screens and B after calibration command
Screen show the white picture under acquiescence color temperature levels, and it is maximum brightness etc. to set the brightness degree of the backlight of A screens and B screens
Grade.
Step 701, after mobile terminal enters calibration mode, server controls color analysis instrument detection mobile terminal it is aobvious
The chromaticity coordinates of display screen.
Step 702, server judge whether the distance of the chromaticity coordinates of A screens and the chromaticity coordinates of B screens is less than or equal to default threshold
Value, if it is, terminating this flow；If it is not, then continue to execute step 603.
Step 703, server obtain the part or all of color of the corresponding A screens of three difference brightness degrees and B screens respectively
The corresponding chromaticity coordinates of warm grade.
For example, server obtain respectively the brightness degree of backlight for the part of 85,170 and 255 corresponding A screens and B screens or
The corresponding chromaticity coordinates of whole color temperature levels.It is of course also possible to obtain the corresponding A screens of more brightness degrees and B screens part or
The corresponding chromaticity coordinates of whole color temperature levels, the brightness degree quantity of acquisition is more, and precision is higher.
Step 704, for each brightness degree, server calculates the corresponding chromaticity coordinates of each color temperature levels of A screens
The distance of chromaticity coordinates corresponding with each color temperature levels of B screens.
Step 705, server are by the color temperature levels of the corresponding A screens of two chromaticity coordinates of the distance minimum of all brightness degrees
Mobile terminal is sent to the color temperature levels of B screens.
For example, if the color temperature levels of the corresponding A screens of two chromaticity coordinates of distance minimum that brightness degree is 85 are 52, B
The color temperature levels of screen are 63；The color temperature levels of the corresponding A screens of two chromaticity coordinates of distance minimum that brightness degree is 170 are 58, B
The color temperature levels of screen are 66；The color temperature levels of the corresponding A screens of two chromaticity coordinates of distance minimum that brightness degree is 70 are 70, B
The color temperature levels of screen are 69；It is possible to think, when backlight level is 0~100, the color temperature levels of A screens are the colour temperature of 52, B screens
Grade is 63；When backlight level is 101~200, the color temperature levels of A screens are that the color temperature levels of 58, B screens are 66；Backlight level is
When 201~255, the color temperature levels of A screens are that the color temperature levels of 70, B screens are 69.
Step 706, mobile terminal preserve the color temperature levels of the corresponding A screens of three difference brightness degrees and the colour temperature of B screens etc.
Grade；And color temperature levels based on A screens and the color temperature levels of B screens are shown.
In this step, memory can be written in three groups of color temperature levels of three groups of color temperature levels of A screens and B screens by mobile terminal
In, as being written in nonvolatile storage.
In this step, when mobile terminal sets the brightness degree of backlight every time, A screens are determined according to the brightness degree of backlight
The acquiescence color temperature levels of color temperature levels and B screens are given tacit consent to, by the colour temperature register of the acquiescence color temperature levels write-in A screens of determining A screens
In, it will be in the colour temperature register of the acquiescence color temperature levels write-in B screens of determining B screens.When being shown, according to A screens
Show that the color temperature levels in the RGB ratio values of picture and the acquiescence colour temperature register of A screens calculate the RGB realities of the display picture of A screens
Border ratio value, the RGB actual ratio values of the display picture based on A screens are shown；According to the RGB ratios of the display picture of B screens
Color temperature levels in the acquiescence colour temperature register of value and B screens calculate the RGB actual ratio values of the display picture of B screens, based on B screens
The RGB actual ratio values of display picture are shown.
Referring to Fig. 8, present applicant proposes a kind of chromaticity coordinates calibrating installation, including：
Control module enters calibration mode for control terminal；
Acquisition module, for after the terminal enters calibration mode, obtaining the chromaticity coordinates of the display screen of terminal；
Calibration module, for when judging to need to calibrate the chromaticity coordinates of the display screen, determining the display
The corresponding acquiescence color temperature levels of at least one predetermined luminance grade of screen, at least one predetermined luminance grade is corresponding silent
Recognize color temperature levels and be sent to the terminal.
Optionally, the calibration module is specifically used for judging to need the color to display screen described in realization in the following ways
Coordinate is calibrated：
When the terminal includes a display screen, the chromaticity coordinates of the display screen and target color coordinates region are compared
It is right, when the chromaticity coordinates of display screen is not in the target color coordinates region, judge to need the chromaticity coordinates to the display screen
It is calibrated；Wherein, the target color coordinates region be comprising target color coordinates value and with the target color coordinates value away from
Region from all chromaticity coordinates values less than or equal to predetermined threshold value；
Alternatively, when the terminal includes two display screens, the chromaticity coordinates of two display screens is compared, when two institutes
When stating the distance of the chromaticity coordinates of display screen more than predetermined threshold value, judge to need to calibrate the chromaticity coordinates of the display screen；
Alternatively, when the terminal includes three or three or more display screens, the chromaticity coordinates of all display screens is compared
It is right, when there are during two display screens that the distance of chromaticity coordinates is more than predetermined threshold value, judge to need the color seat to the display screen
Mark is calibrated.
Optionally, the calibration module is specifically used for realizing at least one pre- of the determining display screen in the following ways
If the corresponding acquiescence color temperature levels of brightness degree：
It is corresponding to obtain corresponding part or all of color temperature levels under at least one predetermined luminance grade of the display screen
Chromaticity coordinates；
Determine the corresponding acquiescence color temperature levels of each described predetermined luminance grade；
Wherein, it is described acquiescence color temperature levels for it is following any one：
When N is 1, chromaticity coordinates and the color temperature levels of the distance minimum of target color coordinates value；
When N is greater than or equal to 2, the color temperature levels of N number of display screen of the distance minimum of chromaticity coordinates；Wherein, N is described aobvious
The number of display screen.
Optionally, the calibration module is additionally operable to：
Adjust the lowest color temperature grade of at least one display screen and/or the corresponding at least one base of highest color temperature levels
The ratio value of coloured light corresponds to the lowest color temperature grade of at least one display screen after adjustment and/or highest color temperature levels
The ratio values of at least one primary lights be sent to the terminal.
Present applicant proposes a kind of chromaticity coordinates calibrating installations, including processor and computer readable storage medium, the meter
Instruction is stored in calculation machine readable storage medium storing program for executing, when described instruction is performed by the processor, realizes that any of the above-described kind of color is sat
Mark calibration method.
Present applicant proposes a kind of computer readable storage mediums, are stored thereon with computer program, the computer journey
The step of any of the above-described kind of chromaticity coordinates calibration method is realized when sequence is executed by processor.
Referring to Fig. 9, present applicant proposes a kind of chromaticity coordinates calibration system, including：
Chromaticity coordinates calibrating installation enters calibration mode for control terminal；After the terminal enters calibration mode, obtain
The chromaticity coordinates of the display screen of terminal；When judging to need to calibrate the chromaticity coordinates of the display screen, the display is determined
The corresponding acquiescence color temperature levels of at least one predetermined luminance grade of screen, by the corresponding acquiescence color of at least one predetermined luminance grade
Warm grade is sent to the terminal；
Terminal, for entering calibration mode under the control of chromaticity coordinates calibrating installation；Receive at least one predetermined luminance
The corresponding acquiescence color temperature levels of grade preserve the corresponding acquiescence color temperature levels of at least one predetermined luminance grade；By display screen
The corresponding acquiescence color temperature levels of brightness degree of backlight are written in colour temperature register.
Optionally, chromaticity coordinates calibrating installation, which is specifically used for realizing in the following ways, judges to need the color seat to display screen
Mark is calibrated：
When the terminal includes a display screen, the chromaticity coordinates of the display screen and target color coordinates region are compared
It is right, when the chromaticity coordinates of display screen is not in the target color coordinates region, judge to need the chromaticity coordinates to the display screen
It is calibrated；Wherein, the target color coordinates region be comprising target color coordinates value and with the target color coordinates value away from
Region from all chromaticity coordinates values less than or equal to predetermined threshold value；
Alternatively, when the terminal includes two display screens, the chromaticity coordinates of two display screens is compared, when two institutes
When stating the distance of the chromaticity coordinates of display screen more than predetermined threshold value, judge to need to calibrate the chromaticity coordinates of the display screen；
Alternatively, when the terminal includes three or three or more display screens, the chromaticity coordinates of all display screens is compared
It is right, when there are during two display screens that the distance of chromaticity coordinates is more than predetermined threshold value, judge to need the color seat to the display screen
Mark is calibrated.
For example, for the terminal of three display screens (being respectively A screens, B screens and C screens), the distance of three groups of chromaticity coordinates is calculated,
I.e.：Under predetermined luminance grade, when all display screens show the colored picture to be calibrated under acquiescence color temperature levels,
The distance between the chromaticity coordinates of A screens, chromaticity coordinates of B screens, are denoted as S1；
The distance between the chromaticity coordinates of A screens, chromaticity coordinates of C screens, are denoted as S2；
The distance between the chromaticity coordinates of B screens, chromaticity coordinates of C screens, are denoted as S3；
So, work as S1, S2And S3During respectively less than or equal to predetermined threshold value, judge not need to the chromaticity coordinates of display screen into
Row calibration, works as S1, S2Or S3During more than predetermined threshold value, judge to need to calibrate the chromaticity coordinates of display screen.
Optionally, chromaticity coordinates calibrating installation, which is specifically used for realizing in the following ways, determines at least one default of display screen
The corresponding acquiescence color temperature levels of brightness degree：
Obtain the corresponding color of the corresponding part or all of color temperature levels of at least one predetermined luminance grade of the display screen
Coordinate；
Determine the corresponding acquiescence color temperature levels of each described predetermined luminance grade；
Wherein, it is described acquiescence color temperature levels for it is following any one：
When N is 1, chromaticity coordinates and the color temperature levels of the distance minimum of target color coordinates value；
When N is greater than or equal to 2, the color temperature levels of N number of display screen of the distance minimum of chromaticity coordinates；Wherein, N is described aobvious
The number of display screen.
Optionally, chromaticity coordinates calibrating installation is additionally operable to：
Adjust the lowest color temperature grade of at least one display screen and/or the corresponding at least one base of highest color temperature levels
The ratio value of coloured light corresponds to the lowest color temperature grade of at least one display screen after adjustment and/or highest color temperature levels
The ratio values of at least one primary lights be sent to the terminal；
Terminal is additionally operable to：
Lowest color temperature grade and/or the highest color temperature levels for receiving at least one display screen after adjustment are corresponding
The ratio value of at least one primary lights, by the lowest color temperature grade corresponding at least one of at least one display screen after adjustment
The ratio value of kind primary lights sets the lowest color temperature register to corresponding display screen, by least one display screen after adjustment
The corresponding at least one primary lights of highest color temperature levels ratio value setting to corresponding display screen highest colour temperature register.
Although disclosed herein embodiment as above, the content only for ease of understanding the present invention and use
Embodiment is not limited to the present invention.Technical staff in any fields of the present invention is taken off not departing from the present invention
Under the premise of the spirit and scope of dew, any modification and variation, but the present invention can be carried out in the form and details of implementation
Scope of patent protection, still should be subject to the scope of the claims as defined in the appended claims.
Claims (10)
1. a kind of chromaticity coordinates calibration method, including：
Control terminal enters calibration mode；
After the terminal enters calibration mode, the chromaticity coordinates of the display screen of terminal is obtained；
When judging to need to calibrate the chromaticity coordinates of the display screen, at least one default bright of the display screen is determined
The corresponding acquiescence color temperature levels of grade are spent, the corresponding acquiescence color temperature levels of at least one predetermined luminance grade are sent to institute
State terminal.
2. chromaticity coordinates calibration method according to claim 1, which is characterized in that described to judge to need the color to display screen
Coordinate carries out calibration and includes：
When the terminal includes a display screen, the chromaticity coordinates of the display screen is compared with target color coordinates region,
When the chromaticity coordinates of display screen is not in the target color coordinates region, judge to need the chromaticity coordinates progress to the display screen
Calibration；Wherein, the target color coordinates region is small comprising target color coordinates value and with the distance of the target color coordinates value
In or equal to predetermined threshold value all chromaticity coordinates values region；
Alternatively, when the terminal includes two display screens, the chromaticity coordinates of two display screens is compared, when two it is described aobvious
When the distance of the chromaticity coordinates of display screen is more than predetermined threshold value, judge to need to calibrate the chromaticity coordinates of the display screen；
Alternatively, when the terminal includes three or three or more display screens, the chromaticity coordinates of all display screens is compared, when
When being more than two display screens of predetermined threshold value there are the distance of chromaticity coordinates, judge to need the chromaticity coordinates progress to the display screen
Calibration.
3. chromaticity coordinates calibration method according to claim 1, which is characterized in that the determining display screen it is at least one pre-
If the corresponding acquiescence color temperature levels of brightness degree include：
The corresponding color of corresponding part or all of color temperature levels under at least one predetermined luminance grade of the display screen is obtained to sit
Mark；
Determine the corresponding acquiescence color temperature levels of each described predetermined luminance grade；
Wherein, it is described acquiescence color temperature levels for it is following any one：
When N is 1, chromaticity coordinates and the color temperature levels of the distance minimum of target color coordinates value；
When N is greater than or equal to 2, the color temperature levels of N number of display screen of the distance minimum of chromaticity coordinates；Wherein, N is the display screen
Number.
4. chromaticity coordinates calibration method according to claim 3, which is characterized in that described to determine each predetermined luminance grade
Before corresponding acquiescence color temperature levels, the corresponding acquiescence color temperature levels of at least one predetermined luminance grade of the determining display screen
It further includes：
Adjust the lowest color temperature grade of at least one display screen and/or the corresponding at least one primary lights of highest color temperature levels
Ratio value, the lowest color temperature grade of at least one display screen after adjustment and/or highest color temperature levels is corresponding extremely
A kind of few ratio value of primary lights is sent to the terminal.
5. a kind of chromaticity coordinates calibrating installation, including：
Control module enters calibration mode for control terminal；
Acquisition module, for after the terminal enters calibration mode, obtaining the chromaticity coordinates of the display screen of terminal；
Calibration module, for when judging to need to calibrate the chromaticity coordinates of the display screen, determining the display screen
The corresponding acquiescence color temperature levels of at least one predetermined luminance grade, by the corresponding acquiescence color of at least one predetermined luminance grade
Warm grade is sent to the terminal.
6. chromaticity coordinates calibrating installation according to claim 5, which is characterized in that the calibration module be specifically used for use with
Under type is judged to need to calibrate the chromaticity coordinates of display screen described in realizing：
When the terminal includes a display screen, the chromaticity coordinates of the display screen is compared with target color coordinates region,
When the chromaticity coordinates of display screen is not in the target color coordinates region, judge to need the chromaticity coordinates progress to the display screen
Calibration；Wherein, the target color coordinates region is small comprising target color coordinates value and with the distance of the target color coordinates value
In or equal to predetermined threshold value all chromaticity coordinates values region；
Alternatively, when the terminal includes two display screens, the chromaticity coordinates of two display screens is compared, when two it is described aobvious
When the distance of the chromaticity coordinates of display screen is more than predetermined threshold value, judge to need to calibrate the chromaticity coordinates of the display screen；
Alternatively, when the terminal includes three or three or more display screens, the chromaticity coordinates of all display screens is compared, when
When being more than two display screens of predetermined threshold value there are the distance of chromaticity coordinates, judge to need the chromaticity coordinates progress to the display screen
Calibration.
7. chromaticity coordinates calibrating installation according to claim 5, which is characterized in that the calibration module be specifically used for use with
Under type realizes the corresponding acquiescence color temperature levels of at least one predetermined luminance grade of the determining display screen：
The corresponding color of corresponding part or all of color temperature levels under at least one predetermined luminance grade of the display screen is obtained to sit
Mark；
Determine the corresponding acquiescence color temperature levels of each described predetermined luminance grade；
Wherein, it is described acquiescence color temperature levels for it is following any one：
When N is 1, chromaticity coordinates and the color temperature levels of the distance minimum of target color coordinates value；
When N is greater than or equal to 2, the color temperature levels of N number of display screen of the distance minimum of chromaticity coordinates；Wherein, N is the display screen
Number.
8. chromaticity coordinates calibrating installation according to claim 7, which is characterized in that the calibration module is additionally operable to：
Adjust the lowest color temperature grade of at least one display screen and/or the corresponding at least one primary lights of highest color temperature levels
Ratio value, the lowest color temperature grade of at least one display screen after adjustment and/or highest color temperature levels is corresponding extremely
A kind of few ratio value of primary lights is sent to the terminal.
9. a kind of chromaticity coordinates calibrating installation, including processor and computer readable storage medium, the computer-readable storage medium
Instruction is stored in matter, which is characterized in that when described instruction is performed by the processor, realize as Claims 1 to 4 is any
Chromaticity coordinates calibration method described in.
10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program
It is realized when being executed by processor such as the step of Claims 1 to 4 any one of them chromaticity coordinates calibration method.
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|---|---|---|---|
| CN201810180551.9A CN108257572B (en) | 2018-03-05 | 2018-03-05 | A kind of chromaticity coordinates calibration method, device and system |
| PCT/CN2019/076979 WO2019170078A1 (en) | 2018-03-05 | 2019-03-05 | Chromaticity coordinate calibration method, apparatus and system |
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| CN201810180551.9A CN108257572B (en) | 2018-03-05 | 2018-03-05 | A kind of chromaticity coordinates calibration method, device and system |
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| CN108648719A (en) * | 2018-03-30 | 2018-10-12 | 中兴通讯股份有限公司 | A kind of screen calibration method, apparatus and system |
| WO2019170078A1 (en) * | 2018-03-05 | 2019-09-12 | 中兴通讯股份有限公司 | Chromaticity coordinate calibration method, apparatus and system |
| 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 |
| CN110456537A (en) * | 2019-07-30 | 2019-11-15 | 苏州佳世达电通有限公司 | Test method and its system for display module |
| CN113488000A (en) * | 2021-06-04 | 2021-10-08 | 深圳金茂电子有限公司 | LCD-based mobile terminal display screen brightness and chrominance correction system |
| CN113744689A (en) * | 2020-05-29 | 2021-12-03 | 北京小米移动软件有限公司 | Display screen color gamut calibration method and device and electronic equipment |
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| CN110456537A (en) * | 2019-07-30 | 2019-11-15 | 苏州佳世达电通有限公司 | Test method and its system for display module |
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| WO2022242062A1 (en) * | 2021-05-21 | 2022-11-24 | 京东方科技集团股份有限公司 | Method and system for calibrating colour coordinates, processing device, and computer storage medium |
| CN113488000A (en) * | 2021-06-04 | 2021-10-08 | 深圳金茂电子有限公司 | LCD-based mobile terminal display screen brightness and chrominance correction system |
| CN114745510A (en) * | 2022-06-13 | 2022-07-12 | 东莞锐视光电科技有限公司 | Automatic LED light source calibration method and system for target image acquisition |
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| Publication number | Publication date |
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| CN108257572B (en) | 2019-07-30 |
| WO2019170078A1 (en) | 2019-09-12 |
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