CN107808626A - Adjust the method, apparatus and computer-readable recording medium of display screen colour temperature - Google Patents
Adjust the method, apparatus and computer-readable recording medium of display screen colour temperature Download PDFInfo
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- CN107808626A CN107808626A CN201711002523.XA CN201711002523A CN107808626A CN 107808626 A CN107808626 A CN 107808626A CN 201711002523 A CN201711002523 A CN 201711002523A CN 107808626 A CN107808626 A CN 107808626A
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- environmental light
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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
- G09G3/2003—Display of colours
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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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Abstract
The disclosure is directed to a kind of method, apparatus and computer-readable recording medium for adjusting display screen colour temperature, it is related to field of terminal technology.This method includes：Obtain the spectral response function of external environmental light；The spectral response function of the display screen of spectral response function and the terminal prestored based on external environmental light determines the values of external environmental light；Values based on external environmental light determines the colour temperature of external environmental light, and the colour temperature for the colour temperature regulation display screen for passing through external environmental light.The embodiment of the present disclosure can determine the colour temperature closer to actual external environmental light by the values of the spectral response function of external environmental light, the spectral response function of display screen, external environmental light, and then the colour temperature of the colour temperature regulation display screen for the external environmental light for passing through determination, the accuracy that colour temperature is adjusted can be improved.
Description
Technical field
This disclosure relates to field of terminal technology, more particularly to a kind of method, apparatus and computer for adjusting display screen colour temperature
Readable storage medium storing program for executing.
Background technology
Current most of terminals are provided with environment light sensor, for example, mobile phone, notebook and tablet personal computer etc..Due to
Environment light sensor can measure the light conditions of external environmental light, and the especially environment light sensor of multichannel can measure the external world
The colour temperature of ambient light, therefore, the colour temperature of display screen can be automatically adjusted by the colour temperature of external environmental light.
The content of the invention
To overcome problem present in correlation technique, the disclosure provide a kind of method, apparatus for adjusting display screen colour temperature and
Computer-readable recording medium.
First aspect, there is provided one kind regulation display screen colour temperature method, applied in terminal, methods described includes：
Obtain the spectral response function of external environmental light；
The frequency spectrum of the display screen of spectral response function and the terminal prestored based on the external environmental light rings
Function is answered to determine the values of the external environmental light；
Values based on the external environmental light determines the colour temperature of the external environmental light, and passes through the external environment
The colour temperature of light adjusts the colour temperature of the display screen.
Alternatively, the spectral response function for obtaining external environmental light, including：
The spectral response of the external environmental light is measured by the environment light sensor of the multichannel configured in the terminal
Curve；
Spectral response curve based on the external environmental light determines the spectral response function of the external environmental light.
Alternatively, the display of the spectral response function based on the external environmental light and the terminal prestored
The spectral response function of screen determines the values of the external environmental light, including：
The spectral response function of spectral response function and the display screen based on the external environmental light determines compensation letter
Number；
The spectral response function and the compensation letter of spectral response function, the display screen based on the external environmental light
Number, determine the values of the external environmental light.
Alternatively, the spectral response function of the external environmental light includes the first spectral response function, the second spectral response
Function and the 3rd spectral response function；
The spectral response function of the spectral response function based on the external environmental light and the display screen determines to mend
Function is repaid, including：
Based on the first spectral response function, the second spectral response function, the 3rd spectral response function and
The spectral response function of the display screen determines penalty function by equation below：
Wherein, the λ is the wavelength of the external environmental light, describedRespectively international lighting
Three stimulation functions as defined in committee's CIE-XYZ systems, the R (λ) is the first spectral response function, and the G (λ) is
The second spectral response function, the B (λ) are the 3rd spectral response function, and the T (λ) is the frequency of the display screen
Compose receptance function, the c1(λ) is the first penalty function, the c2(λ) is the second penalty function, the c3(λ) is the 3rd benefit
Repay function.
Alternatively, the spectral response function of the external environmental light includes the first spectral response function, the second spectral response
Function and the 3rd spectral response function, the penalty function include the first penalty function, the second penalty function and the 3rd compensation letter
Number；
The spectral response function based on the external environmental light, the spectral response function of the display screen and the benefit
Function is repaid, determines the values of the external environmental light, including：
Based on the first spectral response function, the second spectral response function, the 3rd spectral response function, institute
Spectral response function, first penalty function, second penalty function and the 3rd penalty function of display screen are stated, is led to
Cross the values that equation below determines the external environmental light：
Wherein, the k is constant, describedFor default source stimulating function, the X is the external environmental light
First values, the Y are the second values of the external environmental light, and the Z is the tristimulus of the external environmental light
Value.
Second aspect, there is provided one kind regulation display screen colour temperature device, applied in terminal, described device includes：
Acquisition module, for obtaining the spectral response function of external environmental light；
Determining module, for the aobvious of the spectral response function based on the external environmental light and the terminal that prestores
The spectral response function of display screen determines the values of the external environmental light；
Adjustment module, the colour temperature of the external environmental light is determined for the values based on the external environmental light, and is led to
The colour temperature for crossing the external environmental light adjusts the colour temperature of the display screen.
Alternatively, the acquisition module includes：
Submodule is measured, the environment light sensor for the multichannel by being configured in the terminal measures the extraneous ring
The spectral response curve of border light；
First determination sub-module, the external environmental light is determined for the spectral response curve based on the external environmental light
Spectral response function.
Alternatively, the determining module includes：
Second determination sub-module, for spectral response function and the frequency spectrum of the display screen based on the external environmental light
Receptance function determines penalty function；
3rd determination sub-module, for the spectral response function based on the external environmental light, the frequency spectrum of the display screen
Receptance function and the penalty function, determine the values of the external environmental light.
Alternatively, the spectral response function of the external environmental light includes the first spectral response function, the second spectral response
Function and the 3rd spectral response function；
Second determination sub-module is used for：
Based on the first spectral response function, the second spectral response function, the 3rd spectral response function and
The spectral response function of the display screen determines penalty function by equation below：
Wherein, the λ is the wavelength of the external environmental light, describedRespectively international lighting
Three stimulation functions as defined in committee's CIE-XYZ systems, the R (λ) is the first spectral response function, and the G (λ) is
The second spectral response function, the B (λ) are the 3rd spectral response function, and the T (λ) is the frequency of the display screen
Compose receptance function, the c1(λ) is the first penalty function, the c2(λ) is the second penalty function, the c3(λ) is the 3rd benefit
Repay function.
Alternatively, the spectral response function of the external environmental light includes the first spectral response function, the second spectral response
Function and the 3rd spectral response function, the penalty function include the first penalty function, the second penalty function and the 3rd compensation letter
Number；
3rd determination sub-module is used for：
Based on the first spectral response function, the second spectral response function, the 3rd spectral response function, institute
Spectral response function, first penalty function, second penalty function and the 3rd penalty function of display screen are stated, is led to
Cross the values that equation below determines the external environmental light：
Wherein, the k is constant, describedFor default source stimulating function, the X is the external environmental light
First values, the Y are the second values of the external environmental light, and the Z is the tristimulus of the external environmental light
Value.
The third aspect, there is provided a kind of device for adjusting display screen colour temperature, described device include：
Processor；
For storing the memory of processor-executable instruction；
Wherein, the processor is configured as the step of any one of above-mentioned first aspect methods described.
Fourth aspect, there is provided a kind of computer-readable recording medium, be stored with finger on the computer-readable recording medium
Order, it is described to instruct the step of realizing any one of above-mentioned first aspect methods described when being executed by processor.
5th aspect, there is provided a kind of computer program product for including instruction, when run on a computer so that
Computer performs the step of any one of above-mentioned first aspect methods described.
The technical scheme provided by this disclosed embodiment can include the following benefits:
In the disclosed embodiments, the spectral response function of external environmental light is obtained, the frequency spectrum based on external environmental light rings
The spectral response function of function and the display screen of the terminal prestored is answered to determine the values of external environmental light, to utilize the thorn
Swash value, eliminate the influence of the light conditions for the external environmental light that the ink smeared on display screen is measured environment light sensor,
It is that the values based on external environmental light can determine the colour temperature of the external environmental light closer to reality.Afterwards, pass through really
When the colour temperature of fixed external environmental light adjusts the colour temperature of the display screen, the accuracy of colour temperature regulation can be improved.
It should be appreciated that the general description and following detailed description of the above are only exemplary and explanatory, not
The disclosure can be limited.
Brief description of the drawings
Accompanying drawing herein is merged in specification and forms the part of this specification, shows the implementation for meeting the present invention
Example, and for explaining principle of the invention together with specification.
Fig. 1 is a kind of flow chart of regulation display screen colour temperature method according to an exemplary embodiment；
Fig. 2A is a kind of flow chart of regulation display screen colour temperature method according to an exemplary embodiment；
Fig. 2 B are a kind of spectral response curve schematic diagrames for external environmental light that Fig. 2A embodiments are related to；
Fig. 2 C are a kind of spectral response curve schematic diagrames for display screen that Fig. 2A embodiments are related to；
Fig. 2 D are a kind of curve synoptic diagrams for stimulation function that Fig. 2A embodiments are related to；
Fig. 2 E are a kind of International Commission on Illumination CIE1931 chromatic diagrams that Fig. 2A embodiments are related to；
Fig. 3 is a kind of block diagram of regulation display screen colour temperature device according to an exemplary embodiment；
Fig. 4 is a kind of block diagram for being used to adjust the device 400 of display screen colour temperature according to an exemplary embodiment.
Embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the disclosure.On the contrary, they be only with it is such as appended
The example of the consistent apparatus and method of some aspects be described in detail in claims, the disclosure.
Before detailed explanation is carried out to the embodiment of the present disclosure, the application scenarios that are first related to the embodiment of the present disclosure
Simply introduced with implementation environment.
First, the application scenarios being related to the embodiment of the present disclosure are simply introduced.
Constantly improve and development with terminal technology, current most of terminals are equipped with environment light sensor, due to
Terminal can measure the light conditions of external environmental light by the environment light sensor, therefore, can pass through the measured external world
The colour temperature of ambient light automatically adjusts the colour temperature of display screen.
Under normal circumstances, terminal is provided with display screen, because transparent display screen can appear the construction of terminal inner, enters
And the attractive in appearance of terminal is influenceed, therefore identical color can be smeared on a display screen to block terminal according to the color of terminal panel
Internal structure is to reach purpose attractive in appearance.And environment light sensor is generally positioned at below display screen, therefore passing through environment
During optical inductor measures to the spectral response curve of external environmental light, the ink smeared on display screen can influence to locate
The measurement of environment light sensor below display screen to the spectral response curve of external environmental light, based on the spectral response curve
The spectral response function of the external environmental light of determination is also inaccurate, causes the spectral response function based on external environmental light finally true
The colour temperature deviation of the colour temperature of fixed external environmental light and actual external environmental light is larger.
In this way, when the colour temperature by external environmental light automatically adjusts the colour temperature of display screen, degree of regulation exists certain
Error.Therefore, the embodiment of the present disclosure provides a kind of method for adjusting display screen colour temperature, the external environmental light determined can be ensured
Colour temperature closer to the colour temperature of actual external environmental light, and then display screen is adjusted by the colour temperature of identified external environmental light
During colour temperature, the accuracy of regulation can be improved.
Next, the implementation environment being related to the embodiment of the present disclosure is simply introduced.
The method for the regulation display screen colour temperature that the embodiment of the present disclosure provides is applied in terminal, and the terminal is configured with display
Screen, environment light sensor etc., wherein, display screen is displayed for content, and environment light sensor can be used for measuring extraneous ring
The spectral response curve of border light.
It should be noted that in practical implementations, the terminal can be that all are configured with display screen and environment light sensor
Electronic equipment, for example, the terminal can be mobile phone, notebook and tablet personal computer etc., the embodiment of the present disclosure is not limited this.
, next will be with reference to accompanying drawing to this public affairs after the application scenarios and implementation environment that the embodiment of the present disclosure is related to have been introduced
The method for opening the regulation display screen colour temperature that embodiment is related to describes in detail.
Fig. 1 is a kind of method flow diagram of regulation display screen colour temperature according to an exemplary embodiment, applied to end
In end, reference picture 1, this method can realize step including following：
In step s 11, the spectral response function of external environmental light is obtained.
In step s 12, the frequency of the spectral response function based on external environmental light and the display screen of the terminal prestored
Spectrum receptance function determines the values of external environmental light.
In step s 13, the values based on external environmental light determines the colour temperature of external environmental light, and passes through external environment
The colour temperature of the colour temperature regulation display screen of light.
In the disclosed embodiments, the spectral response function of external environmental light is obtained, the frequency spectrum based on external environmental light rings
The spectral response function of function and the display screen of the terminal prestored is answered to determine the values of external environmental light, to utilize the thorn
Swash value, eliminate the influence of the light conditions for the external environmental light that the ink smeared on display screen is measured environment light sensor,
It is that the values based on external environmental light can determine the colour temperature of the external environmental light closer to reality.Afterwards, pass through really
When the colour temperature of fixed external environmental light adjusts the colour temperature of the display screen, the accuracy of colour temperature regulation can be improved.
Alternatively, the spectral response function of external environmental light is obtained, including：
The spectral response curve of external environmental light is measured by the environment light sensor of the multichannel configured in terminal；
Spectral response curve based on external environmental light determines the spectral response function of external environmental light.
Alternatively, the frequency spectrum of the spectral response function based on the external environmental light and the display screen of the terminal prestored
Receptance function determines the values of external environmental light, including：
The spectral response function of spectral response function and display screen based on external environmental light determines penalty function；
The spectral response function and penalty function of spectral response function, display screen based on external environmental light, it is determined that extraneous
The values of ambient light.
Alternatively, the spectral response function of external environmental light includes the first spectral response function, the second spectral response function
With the 3rd spectral response function；
The spectral response function of spectral response function and display screen based on the external environmental light determines penalty function, bag
Include：
Frequency spectrum based on the first spectral response function, the second spectral response function, the 3rd spectral response function and display screen
Receptance function determines penalty function by equation below：
Wherein, λ is the wavelength of the external environmental light,Respectively International Commission on Illumination
Three stimulation functions as defined in CIE-XYZ systems, R (λ) is the first spectral response function, and G (λ) is the second spectral response function, B
(λ) is the 3rd spectral response function, and T (λ) is the spectral response function of display screen, c1(λ) is the first penalty function, c2(λ) is
Second penalty function, c3(λ) is the 3rd penalty function.
Alternatively, the spectral response function of external environmental light includes the first spectral response function, the second spectral response function
With the 3rd spectral response function, penalty function includes the first penalty function, the second penalty function and the 3rd penalty function；
The spectral response function and penalty function of spectral response function, display screen based on external environmental light, it is determined that extraneous
The values of ambient light, including：
Frequency spectrum based on the first spectral response function, the second spectral response function, the 3rd spectral response function, display screen rings
Function, the first penalty function, the second penalty function and the 3rd penalty function are answered, the thorn of external environmental light is determined by equation below
Swash value：
Wherein, the k is constant, describedFor default source stimulating function, the X is the external environmental light
First values, the Y are the second values of the external environmental light, and the Z is the tristimulus of the external environmental light
Value.
Above-mentioned all optional technical schemes, can form the alternative embodiment of the disclosure according to any combination, and the disclosure is real
Example is applied no longer to repeat this one by one.
Fig. 2A is a kind of method flow diagram of regulation display screen colour temperature according to an exemplary embodiment, applied to end
In end, reference picture 2A, this method can realize step including following：
In the step s 21, the spectral response function of external environmental light is obtained.
Due under the light of different external environmental lights, level of comfort that the colour temperature of the display screen of terminal is brought to human eye
Difference, for example, when terminal is in the weaker scene of light, the display screen colour temperature of light green or ecru brings relaxing for human eye
Suitable degree brings the level of comfort of human eye higher than the display screen colour temperature of white.Therefore, in order under different external environmental lights, eventually
The display screen at end can show suitable colour temperature, it is necessary to be measured to external environmental light, that is, obtain the frequency spectrum of external environmental light
Receptance function.
Under normal circumstances, environment light sensor can be divided into the environment photoinduction of single pass environment light sensor and multichannel
Device, single pass environment light sensor may only measure the monochrome information of external environmental light, and the environment light sensor of multichannel
The monochrome information of external environmental light can be not only measured, the colouring information of external environmental light, including external environment can also be measured
The information such as the colour temperature of light, chromaticity coordinates.
The embodiment of the present disclosure is measured from the environment light sensor of multichannel to external environmental light, to obtain extraneous ring
The spectral response function of border light.Wherein, obtaining the specific implementation of the spectral response function of external environmental light can include：Pass through end
The spectral response curve of the environment light sensor measurement external environmental light of the multichannel of configuration, the frequency based on external environmental light in end
Spectrum response curve determines the spectral response function of external environmental light.
Specifically, reference picture 2B, three passages in the environment light sensor of multichannel are respectively to three kinds of face of red, green, blue
The external environmental light of color is filtered, and then obtains three spectral response curves of three kinds of external environmental lights of red, green, blue, respectively
As shown in 23 in Fig. 2 B, 22,21, then three kinds of external environments of red, green, blue can be determined according to these three spectral response curves
The spectral response function of light.For example, the spectral response function of three kinds of external environmental lights of the red, green, blue be respectively R (λ), G (λ) and
B(λ)。
It should be noted that color based on three kinds of colors of red, green, blue is generally selected, e.g., can be by these three colors
Mixed according to different ratio and intensity, and then synthesize other colors.Therefore, in the disclosed embodiments, by more logical
Three passages in the environment light sensor in road are filtered and measured to the external environmental light of three kinds of colors of red, green, blue respectively.
In step S22, the spectral response function of spectral response function and display screen based on external environmental light determines to mend
Repay function.
Wherein, in order to improve the accuracy of the spectral response function of display screen, test display screen can be surveyed in advance
Examination, obtains the spectral response curve of display screen, for example, referring to Fig. 2 C, Fig. 2 C are pairs according to an exemplary embodiment
Different display screens are tested obtained spectral response curve.Afterwards, display is determined using the spectral response curve of the display screen
The spectral response function of screen, then by the spectral response function storage of the display screen of determination in the terminal.In the specific implementation, eventually
End can be tested test display screen by spectrum analyzer.
In order to which the colour temperature more accurately by external environmental light adjusts the colour temperature of display screen, it is determined that the color of external environmental light
During temperature, it is thus necessary to determine that penalty function, so as to subsequently through the penalty function, it may be determined that the values of external environmental light.
In practical implementations, because the environment light sensor of multichannel mainly measures the light of three kinds of colors of red, green, blue, therefore, extraneous ring
The spectral response function of border light includes the first spectral response function, the second spectral response function and the 3rd spectral response function, point
Do not corresponded with above-mentioned three kinds of colors.Further, above-mentioned spectral response function and display screen based on external environmental light
Spectral response function determines that the specific implementation of penalty function includes：Based on the first spectral response function, the second spectral response function,
The spectral response function of 3rd spectral response function and display screen determines penalty function by equation below (1)：
Wherein, λ be external environmental light wavelength, reference picture 2D,Respectively CIE-XYZ
Three as defined in (Commission Internationale de L'Eclairage-XYZ, International Commission on Illumination-XYZ) system
Individual stimulation function, R (λ) are the first spectral response function, and G (λ) is the second spectral response function, and B (λ) is the 3rd spectral response
Function, T (λ) be display screen spectral response function, c1(λ) is the first penalty function, c2(λ) is the second penalty function, c3(λ)
For the 3rd penalty function.
It that is to say, above-mentioned identified penalty function actually includes the first penalty function, the second penalty function and the 3rd
Penalty function, it is believed that three functions are corresponding with three kinds of colors of RGB respectively.
According to knowable to above, in practical application scene, due to having smeared ink on display screen, therefore, environment have impact on
Measurement of the optical inductor to the spectral response curve of external environmental light, and then the external world that the spectral response curve based on measurement determines
The spectral response function of ambient light is also inaccurate.Therefore, in above-mentioned spectral response function and display screen based on external environmental light
Spectral response function determine penalty function actually include process is implemented as described below：First need to obtain the display screen prestored
Spectral response function, and the spectral response function of the spectral response function of the external environmental light based on acquisition and display screen, it is determined that
The spectral response function of real external environmental light, afterwards, according to the spectral response function and CIE- of real external environmental light
Function is stimulated as defined in XYZ system, determines penalty function.
Specifically, it is assumed that the spectral response function of real external environmental light includes the 4th spectral response function r (λ), the
Five spectral response function g (λ) and the 6th spectral response function b (λ), the then above-mentioned external environmental light based on acquisition spectral response
The spectral response function of function and display screen, the spectral response of real external environmental light can be determined by equation below (2)
Function：
Further, as defined in the spectral response function and CIE-XYZ systems that terminal can be based on real external environmental light
Function is stimulated to determine above-mentioned penalty function, its specific implementation includes：Based on the 4th spectral response function, the 5th spectral response letter
Three stimulate function to determine compensation letter by equation below (3) as defined in number, the 6th spectral response function and CIE-XYZ systems
Number：
In step S23, the spectral response function and compensation letter of spectral response function, display screen based on external environmental light
Number, determine the values of external environmental light.
Due to being the chromaticity coordinates that external environmental light is determined by the values of external environmental light in normalized form, and then determine
The colour temperature of external environmental light, therefore, it is necessary to the spectral response function based on external environmental light, display after function is compensated
The spectral response function and penalty function of screen, determine the values of external environmental light.
Specifically, based on the first spectral response function, the second spectral response function, the 3rd spectral response function, display screen
Spectral response function, the first penalty function, the second penalty function and the 3rd penalty function, determined by equation below (4) outer
The values of boundary's ambient light：
Wherein, k is constant,For default source stimulating function, X is the first values of external environmental light, and Y is outer
Second values of boundary's ambient light, Z are the tristimulus values of external environmental light.
As long as it should be noted that light source determine,The source stimulating function being just to determine.In addition, in above-mentioned calculating
During, the first values, the second values of external environmental light, the ripple of the determination scope of tristimulus values in external environmental light
Between long 380 to 780.
It should also be noted that, above-mentioned steps S22 and step S23 is used to realize the spectral response letter based on external environmental light
The step of spectral response function of number and the display screen of the terminal prestored determines the values of external environmental light.
In step s 24, the values based on external environmental light determines the colour temperature of external environmental light.
In order to accurately obtain the colour temperature of external environmental light, the embodiment of the present disclosure it is determined that before the colour temperature of external environmental light,
Need to first pass through the chromaticity coordinates that normalized form determines external environmental light, and normalized form is the values based on external environmental light obtains
Arrive, therefore, it is necessary to the colour temperature of external environmental light is determined based on the values of external environmental light.
Specifically, it is determined that after the values of external environmental light, extraneous ring can be determined by following normalized form (5)
The chromaticity coordinates of border light：
Wherein, x is the abscissa in the chromaticity coordinates of external environmental light, and y is the ordinate in the chromaticity coordinates of external environmental light.
Further, it is determined that after the chromaticity coordinates of external environmental light, the chromaticity coordinates based on external environmental light, reference
The colour temperature of external environmental light is determined in CIE1931 chromatic diagrams, for example, the CIE1931 chromatic diagrams are as shown in Fig. 2 E.Specifically, base
In it is determined that external environmental light chromaticity coordinates in abscissa and ordinate, in CIE1931 chromatic diagrams i.e. can determine that extraneous ring
The colour temperature of border light.
In step s 25, the colour temperature of display screen is adjusted by the colour temperature of external environmental light.
In actual implementation process, the specific implementation for the colour temperature for adjusting display screen by the colour temperature of external environmental light can be joined
See correlation technique, the embodiment of the present disclosure is not described in detail to this.
Because under the colour temperature of different external environmental lights, the colour temperature of different display screens brings the level of comfort of human eye not
Together, it is therefore desirable under the colour temperature of different external environmental lights, display screen is adjusted to making the comfortable colour temperature of human eye.It is real in the disclosure
Apply in example, the colour temperature of display screen can be automatically adjusted by the colour temperature of external environmental light, i.e., when the colour temperature of external environmental light changes
When, the colour temperature of display screen can be automatically adjusted, improves Consumer's Experience effect.
In the disclosed embodiments, the spectral response function of external environmental light is obtained, the frequency spectrum based on external environmental light rings
The spectral response function of function and the display screen of the terminal prestored is answered to determine the values of external environmental light, to utilize the thorn
Swash value, eliminate the influence of the light conditions for the external environmental light that the ink smeared on display screen is measured environment light sensor,
It is that the values based on external environmental light can determine the colour temperature of the external environmental light closer to reality.Afterwards, pass through really
When the colour temperature of fixed external environmental light adjusts the colour temperature of the display screen, the accuracy of colour temperature regulation can be improved.
Fig. 3 is a kind of block diagram of the device 300 of regulation display screen colour temperature according to an exemplary embodiment, is applied to
Terminal, as shown in figure 3, the device includes acquisition module 301, determining module 302 and adjustment module 303.
Acquisition module 301, for obtaining the spectral response function of external environmental light；
Determining module 302, for the spectral response function based on external environmental light and the display screen of the terminal prestored
Spectral response function determine the values of external environmental light；
Adjustment module 303, the colour temperature of external environmental light is determined for the values based on external environmental light, and passes through the external world
The colour temperature of the colour temperature regulation display screen of ambient light.
Alternatively, acquisition module 301 includes：
Submodule is measured, the environment light sensor for the multichannel by being configured in terminal measures the frequency of external environmental light
Compose response curve；
First determination sub-module, the frequency of the external environmental light is determined for the spectral response curve based on external environmental light
Compose receptance function.
Optionally it is determined that module 302 includes：
Second determination sub-module, for spectral response function and the spectral response function of display screen based on external environmental light
Determine penalty function；
3rd determination sub-module, for the spectral response function based on external environmental light, the spectral response function of display screen
And penalty function, determine the values of external environmental light.
Alternatively, the spectral response function of external environmental light includes the first spectral response function, the second spectral response function
With the 3rd spectral response function；
Second determination sub-module is used for：
Frequency spectrum based on the first spectral response function, the second spectral response function, the 3rd spectral response function and display screen
Receptance function determines penalty function by equation below：
Wherein, λ is the wavelength of external environmental light,Respectively International Commission on Illumination CIE-
Three stimulation functions as defined in XYZ system, R (λ) is the first spectral response function, and G (λ) is the second spectral response function, B
(λ) is the 3rd spectral response function, and T (λ) is the spectral response function of the display screen, c1(λ) is the first penalty function,
c2(λ) is the second penalty function, c3(λ) is the 3rd penalty function.
Alternatively, the spectral response function of external environmental light includes the first spectral response function, the second spectral response function
With the 3rd spectral response function, penalty function includes the first penalty function, the second penalty function and the 3rd penalty function；
3rd determination sub-module is used for：
Frequency spectrum based on the first spectral response function, the second spectral response function, the 3rd spectral response function, display screen rings
Function, the first penalty function, the second penalty function and the 3rd penalty function are answered, the thorn of external environmental light is determined by equation below
Swash value：
Wherein, k is constant,For default source stimulating function, X is the first values of external environmental light, and Y is outer
Second values of boundary's ambient light, Z are the tristimulus values of external environmental light.
In the disclosed embodiments, the spectral response function of external environmental light is obtained, the frequency spectrum based on external environmental light rings
The spectral response function of function and the display screen of the terminal prestored is answered to determine the values of external environmental light, to utilize the thorn
Swash value, eliminate the influence of the light conditions for the external environmental light that the ink smeared on display screen is measured environment light sensor,
It is that the values based on external environmental light can determine the colour temperature of the external environmental light closer to reality.Afterwards, pass through really
When the colour temperature of fixed external environmental light adjusts the colour temperature of the display screen, the accuracy of colour temperature regulation can be improved.
On the device in above-described embodiment, wherein modules perform the concrete mode of operation in relevant this method
Embodiment in be described in detail, explanation will be not set forth in detail herein.
Fig. 4 is a kind of block diagram for being used to adjust the device 400 of display screen colour temperature according to an exemplary embodiment.Example
Such as, device 400 can be mobile phone, computer, digital broadcast terminal, messaging devices, game console, and flat board is set
It is standby, Medical Devices, body-building equipment, personal digital assistant etc..
Reference picture 4, device 400 can include following one or more assemblies：Processing component 402, memory 404, power supply
Component 406, multimedia groupware 408, audio-frequency assembly 410, the interface 412 of input/output (I/O), sensor cluster 414, and
Communication component 416.
The integrated operation of the usual control device 400 of processing component 402, such as communicated with display, call, data, phase
The operation that machine operates and record operation is associated.Processing component 402 can refer to including one or more processors 420 to perform
Order, to complete all or part of step of above-mentioned method.In addition, processing component 402 can include one or more modules, just
Interaction between processing component 402 and other assemblies.For example, processing component 402 can include multi-media module, it is more to facilitate
Interaction between media component 408 and processing component 402.
Memory 404 is configured as storing various types of data to support the operation in device 400.These data are shown
Example includes the instruction of any application program or method for being operated on device 400, contact data, telephone book data, disappears
Breath, picture, video etc..Memory 404 can be by any kind of volatibility or non-volatile memory device or their group
Close and realize, as static RAM (SRAM), Electrically Erasable Read Only Memory (EEPROM) are erasable to compile
Journey read-only storage (EPROM), programmable read only memory (PROM), read-only storage (ROM), magnetic memory, flash
Device, disk or CD.
Power supply module 406 provides power supply for the various assemblies of device 400.Power supply module 406 can include power management system
System, one or more power supplys, and other components associated with generating, managing and distributing power supply for device 400.
Multimedia groupware 408 is included in the screen of one output interface of offer between described device 400 and user.One
In a little embodiments, screen can include liquid crystal display (LCD) and touch panel (TP).If screen includes touch panel, screen
Curtain may be implemented as touch-screen, to receive the input signal from user.Touch panel includes one or more touch sensings
Device is with the gesture on sensing touch, slip and touch panel.The touch sensor can not only sensing touch or sliding action
Border, but also detect and touched or the related duration and pressure of slide with described.In certain embodiments, more matchmakers
Body component 408 includes a front camera and/or rear camera.When device 400 is in operator scheme, such as screening-mode or
During video mode, front camera and/or rear camera can receive outside multi-medium data.Each front camera and
Rear camera can be a fixed optical lens system or have focusing and optical zoom capabilities.
Audio-frequency assembly 410 is configured as output and/or input audio signal.For example, audio-frequency assembly 410 includes a Mike
Wind (MIC), when device 400 is in operator scheme, during such as call model, logging mode and speech recognition mode, microphone by with
It is set to reception external audio signal.The audio signal received can be further stored in memory 404 or via communication set
Part 416 is sent.In certain embodiments, audio-frequency assembly 410 also includes a loudspeaker, for exports audio signal.
I/O interfaces 412 provide interface between processing component 402 and peripheral interface module, and above-mentioned peripheral interface module can
To be keyboard, click wheel, button etc..These buttons may include but be not limited to：Home button, volume button, start button and lock
Determine button.
Sensor cluster 414 includes one or more sensors, and the state for providing various aspects for device 400 is commented
Estimate.For example, sensor cluster 414 can detect opening/closed mode of device 400, and the relative positioning of component, for example, it is described
Component is the display and keypad of device 400, and sensor cluster 414 can be with 400 1 components of detection means 400 or device
Position change, the existence or non-existence that user contacts with device 400, the orientation of device 400 or acceleration/deceleration and device 400
Temperature change.Sensor cluster 414 can include proximity transducer, be configured to examine in no any physical contact
Survey the presence of object nearby.Sensor cluster 414 can also include optical sensor, such as CMOS or ccd image sensor, for
Used in imaging applications.In certain embodiments, the sensor cluster 414 can also include acceleration transducer, and gyroscope passes
Sensor, Magnetic Sensor, pressure sensor or temperature sensor.
Communication component 416 is configured to facilitate the communication of wired or wireless way between device 400 and other equipment.Device
400 can access the wireless network based on communication standard, such as WiFi, 2G or 3G, or combinations thereof.In an exemplary implementation
In example, communication component 416 receives broadcast singal or broadcast related information from external broadcasting management system via broadcast channel.
In one exemplary embodiment, the communication component 416 also includes near-field communication (NFC) module, to promote junction service.Example
Such as, in NFC module radio frequency identification (RFID) technology can be based on, Infrared Data Association (IrDA) technology, ultra wide band (UWB) technology,
Bluetooth (BT) technology and other technologies are realized.
In the exemplary embodiment, device 400 can be believed by one or more application specific integrated circuits (ASIC), numeral
Number processor (DSP), digital signal processing appts (DSPD), PLD (PLD), field programmable gate array
(FPGA), controller, microcontroller, microprocessor or other electronic components are realized, real shown in above-mentioned Fig. 1 and Fig. 2 for performing
The method that example offer is provided.
In the exemplary embodiment, a kind of non-transitorycomputer readable storage medium including instructing, example are additionally provided
Such as include the memory 404 of instruction, above-mentioned instruction can be performed to complete the above method by the processor 420 of device 400.For example,
The non-transitorycomputer readable storage medium can be ROM, random access memory (RAM), CD-ROM, tape, floppy disk
With optical data storage devices etc..
A kind of computer-readable recording medium is provided, instruction is stored with the computer-readable recording medium, it is described
The step of instruction realizes above-mentioned Fig. 1 and Fig. 2A methods describeds when being executed by processor.
A kind of computer program product for including instruction is provided, when run on a computer so that computer is held
The step of row above-mentioned Fig. 1 and Fig. 2A methods describeds.
Those skilled in the art will readily occur to the present invention its after considering specification and putting into practice invention disclosed herein
Its embodiment.The application be intended to the present invention any modification, purposes or adaptations, these modifications, purposes or
Person's adaptations follow the general principle of the present invention and including the undocumented common knowledges in the art of the disclosure
Or conventional techniques.Description and embodiments are considered only as exemplary, and true scope and spirit of the invention are by following
Claim is pointed out.
It should be appreciated that the invention is not limited in the precision architecture for being described above and being shown in the drawings, and
And various modifications and changes can be being carried out without departing from the scope.The scope of the present invention is only limited by appended claim.
Claims (12)
- A kind of 1. method for adjusting display screen colour temperature, applied in terminal, it is characterised in that methods described includes：Obtain the spectral response function of external environmental light；The spectral response letter of the display screen of spectral response function and the terminal prestored based on the external environmental light Number determines the values of the external environmental light；Values based on the external environmental light determines the colour temperature of the external environmental light, and passes through the external environmental light Colour temperature adjusts the colour temperature of the display screen.
- 2. the method as described in claim 1, it is characterised in that the spectral response function for obtaining external environmental light, including：The spectral response curve of the external environmental light is measured by the environment light sensor of the multichannel configured in the terminal；Spectral response curve based on the external environmental light determines the spectral response function of the external environmental light.
- 3. method as claimed in claim 1 or 2, it is characterised in that the spectral response letter based on the external environmental light The spectral response function of number and the display screen of the terminal prestored determines the values of the external environmental light, including：The spectral response function of spectral response function and the display screen based on the external environmental light determines penalty function；The spectral response function and the penalty function of spectral response function, the display screen based on the external environmental light, Determine the values of the external environmental light.
- 4. method as claimed in claim 3, it is characterised in that the spectral response function of the external environmental light includes the first frequency Compose receptance function, the second spectral response function and the 3rd spectral response function；The spectral response function of the spectral response function based on the external environmental light and the display screen determines compensation letter Number, including：Based on the first spectral response function, the second spectral response function, the 3rd spectral response function and described The spectral response function of display screen determines penalty function by equation below：Wherein, the λ is the wavelength of the external environmental light, describedRespectively international lighting committee member Three stimulation functions as defined in meeting CIE-XYZ systems, the R (λ) is the first spectral response function, and the G (λ) is described Second spectral response function, the B (λ) are the 3rd spectral response function, and the T (λ) is rung for the frequency spectrum of the display screen Answer function, the c1(λ) is the first penalty function, the c2(λ) is the second penalty function, the c3(λ) is the 3rd compensation letter Number.
- 5. the method as described in claim 3 or 4, it is characterised in that the spectral response function of the external environmental light includes the One spectral response function, the second spectral response function and the 3rd spectral response function, the penalty function include the first compensation letter Number, the second penalty function and the 3rd penalty function；The spectral response function based on the external environmental light, the spectral response function of the display screen and the compensation letter Number, the values of the external environmental light is determined, including：Based on the first spectral response function, the second spectral response function, the 3rd spectral response function, described aobvious The spectral response function of display screen, first penalty function, second penalty function and the 3rd penalty function, by such as Lower formula determines the values of the external environmental light：Wherein, the k is constant, describedFor default source stimulating function, the X is the first of the external environmental light Values, the Y are the second values of the external environmental light, and the Z is the tristimulus values of the external environmental light.
- A kind of 6. device for adjusting display screen colour temperature, applied in terminal, it is characterised in that described device includes：Acquisition module, for obtaining the spectral response function of external environmental light；Determining module, for the spectral response function based on the external environmental light and the display screen of the terminal prestored Spectral response function determine the values of the external environmental light；Adjustment module, the colour temperature of the external environmental light is determined for the values based on the external environmental light, and passes through institute The colour temperature for stating external environmental light adjusts the colour temperature of the display screen.
- 7. device as claimed in claim 6, it is characterised in that the acquisition module includes：Submodule is measured, the environment light sensor for the multichannel by being configured in the terminal measures the external environmental light Spectral response curve；First determination sub-module, the frequency of the external environmental light is determined for the spectral response curve based on the external environmental light Compose receptance function.
- 8. device as claimed in claims 6 or 7, it is characterised in that the determining module includes：Second determination sub-module, the spectral response for spectral response function and the display screen based on the external environmental light Function determines penalty function；3rd determination sub-module, the spectral response for spectral response function, the display screen based on the external environmental light Function and the penalty function, determine the values of the external environmental light.
- 9. device as claimed in claim 8, it is characterised in that the spectral response function of the external environmental light includes the first frequency Compose receptance function, the second spectral response function and the 3rd spectral response function；Second determination sub-module is used for：Based on the first spectral response function, the second spectral response function, the 3rd spectral response function and described The spectral response function of display screen determines penalty function by equation below：Wherein, the λ is the wavelength of the external environmental light, describedRespectively international lighting committee member Three stimulation functions as defined in meeting CIE-XYZ systems, the R (λ) is the first spectral response function, and the G (λ) is described Second spectral response function, the B (λ) are the 3rd spectral response function, and the T (λ) is rung for the frequency spectrum of the display screen Answer function, the c1(λ) is the first penalty function, the c2(λ) is the second penalty function, the c3(λ) is the 3rd compensation letter Number.
- 10. device as claimed in claim 8 or 9, it is characterised in that the spectral response function of the external environmental light includes the One spectral response function, the second spectral response function and the 3rd spectral response function, the penalty function include the first compensation letter Number, the second penalty function and the 3rd penalty function；3rd determination sub-module is used for：Based on the first spectral response function, the second spectral response function, the 3rd spectral response function, described aobvious The spectral response function of display screen, first penalty function, second penalty function and the 3rd penalty function, by such as Lower formula determines the values of the external environmental light：Wherein, the k is constant, describedFor default source stimulating function, the X is the first of the external environmental light Values, the Y are the second values of the external environmental light, and the Z is the tristimulus values of the external environmental light.
- 11. a kind of device for adjusting display screen colour temperature, it is characterised in that described device includes：Processor；For storing the memory of processor-executable instruction；Wherein, the processor is configured as the step of perform claim requires any one of 1-5 methods described.
- A kind of 12. computer-readable recording medium, it is characterised in that instruction is stored with the computer-readable recording medium, The step of instruction realizes any one of claim 1-5 methods described when being executed by processor.
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