CN110456537A - Test method and its system for display module - Google Patents
Test method and its system for display module Download PDFInfo
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- CN110456537A CN110456537A CN201910695165.8A CN201910695165A CN110456537A CN 110456537 A CN110456537 A CN 110456537A CN 201910695165 A CN201910695165 A CN 201910695165A CN 110456537 A CN110456537 A CN 110456537A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Controls And Circuits For Display Device (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
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Abstract
The present invention provides a kind of test method and its system for display module, this method comprises: obtaining the limiting value of chromaticity coordinates and the limiting value of brightness in display module by processing module;It by module of mixing colours, is simulated according to the limiting value of the chromaticity coordinates, so that the corresponding display image of display module output;It by brightness adjusting section, is simulated according to the limiting value of the brightness, the display brightness of the display image is arranged;Module is adjusted by colour temperature, adjusts the color temperature mode of the display module to configure color temp;And by optical gauge, measure actual displayed brightness of the display image under the color temperature mode.The present invention is by obtaining the limiting value of display module chromaticity coordinates and the limiting value of brightness, to simulate the extreme situation of the display module according to the limiting value of the chromaticity coordinates and the limiting value of brightness, to be adjusted under the extreme situation to the color temperature levels of display module, actual displayed brightness of the display module under the color temperature levels is finally learnt.
Description
Technical field
The present invention relates to technical field of image processing more particularly to a kind of test method for display module and its it is
System.
Background technique
Colour temperature is used to indicate the changes in temperature degree of light source, the light source of different-colour to feel it is different to the changes in temperature of people.Low
In the Energy distribution of color temperature light sources, red radiation proportion is more, and light source shows as " warm light ";Energy in high color temperature light source
In distribution, the shared ratio of indigo plant radiation is relatively more, and light source shows as " cold light ".
Existing display module can preset several color temperature modes and is corresponding with as the electronic products such as display, LCD TV
Multiple groups colour temperature (such as: 6500K, 7500K, 9300K) is selected for user, and for same display panel, it be in white picture
Different-colour is shown under face, it is necessary to adjust RGB yield value to realize, it is to be understood that in adjustment display module colour temperature
While, it can also be affected to brightness, and user usually has certain requirement to the minimum brightness of display module, this is just
It needs to test the display brightness of display module under several cases (such as: chromaticity coordinates and brightness are in extremum).
However, in process of production, the acceptance rate of the display panel in display module has reached certain standard, mould is shown
A possibility that chromaticity coordinates and brightness of group are in extremum is lower, and tester is caused to be difficult to the extreme case in display module
Under it is detected.
Therefore, it is necessary to a kind of novel test method and its system for display module be designed, to overcome above-mentioned lack
It falls into.
Summary of the invention
The purpose of the present invention is to provide a kind of test methods and its system for display module, can pass through simulation
The extreme situation of display module is to test the brightness value of the display module under the extreme situation.
In order to achieve the above objectives, the present invention provides a kind of test methods for display module, this method comprises: passing through
Processing module obtains the limiting value of chromaticity coordinates and the limiting value of brightness in display module;By module of mixing colours, according to the chromaticity coordinates
Limiting value simulated so that the corresponding display image of display module output;By brightness adjusting section, according to the brightness
Limiting value simulated, the display brightness of the display image is arranged;Module is adjusted by colour temperature, adjusts the display module
Color temperature mode is to configure color temp;And by optical gauge, measure the reality of the display image under the color temperature mode
Border display brightness.
Preferably, described " obtain and analysis shows that in mould group the limiting value of chromaticity coordinates and brightness limiting value " before, also
It include: and to be analyzed according to the multiple groups actual value in defaulting the actual value for obtaining the multiple groups chromaticity coordinates and the brightness under color temperature levels
Obtain the chromaticity coordinates and the limiting value of the brightness.
Preferably, the limiting value of the chromaticity coordinates include the upper limit value of abscissa and the upper limit value of lower limit value and ordinate and under
Limit value;The limiting value of the brightness includes the upper limit value and lower limit value of the brightness.
Preferably, described " simulated, so that the corresponding display of display module output according to the limiting value of the chromaticity coordinates
Before image ", further includes: by between the upper limit value of the abscissa and the upper limit value and lower limit value of lower limit value and the ordinate two-by-two
It combines to form the value of the chromaticity coordinates, so that the display module exports the corresponding display image according to the value of the chromaticity coordinates.
Preferably, described " simulated, so that the corresponding display of display module output according to the limiting value of the chromaticity coordinates
Image " specifically includes: the toning module simulates corresponding RGB gain based on the value of the chromaticity coordinates, to control the display mould
Group should show image according to the RGB gain output phase.
Preferably, " the adjusting the color temperature mode of the display module to configure color temp " includes: the display module root
According to the corresponding adjustment RGB gain of the color temperature mode, to configure the color temp of grade corresponding to the color temperature mode.
Preferably, described " adjusting the color temperature mode of the display module to configure color temp " further include: call the display
The adjustment menu of mould group is to select the color temperature mode;Wherein, which includes multiple color temperatures mode, the multiple color temperatures mode
Configured with different grades of color temp.
Preferably, the different grades of color temp is corresponded from the chromaticity coordinates of different values.
Preferably, " the adjusting image display brightness according to the limiting value of the brightness " specifically includes: the brightness adjustment mould
Block is by adjusting the driving current for the limiting value for corresponding to the brightness to adjust the image display brightness.
In addition, the system includes: processing module the present invention also provides a kind of test macro for display module, to
Obtain the limiting value of chromaticity coordinates and the limiting value of brightness in display module;Toning module, is coupled to the processing module, the picture tune
Mould preparation block according to the limiting value of the chromaticity coordinates to be simulated, so that the corresponding display image of display module output;Brightness
Module is adjusted, the processing module is coupled to, which is simulated according to the limiting value of the brightness, aobvious this is arranged
The display brightness of diagram picture;Colour temperature adjusts module, to adjust the color temperature mode of the display module to configure color temp;And
Optical gauge, to measure actual displayed brightness of the display image under the color temperature mode.
Compared with prior art, provided by the present invention for the test method of display module and its system by obtaining display
The limiting value of the limiting value of chromaticity coordinates and brightness in mould group, it is aobvious to be simulated according to the limiting value of chromaticity coordinates and the limiting value of brightness
Show the extreme situation of mould group, to be adjusted under the extreme situation to the color temperature levels of display module, final measurement is obtained
Actual displayed brightness of the display module under the color temperature levels.
Detailed description of the invention
Fig. 1 is the flow diagram of test method provided in an embodiment of the present invention;
Fig. 2 is the system module figure of test macro provided in an embodiment of the present invention.
Specific embodiment
To make to have further understanding to the purpose of the present invention, construction, feature and its function, hereby cooperate embodiment specifically
It is bright as follows.
Some vocabulary is used in specification and claims to censure specific element.Have in fields
Usual skill is, it is to be appreciated that manufacturer may call the same element with different nouns.This specification and right are wanted
Ask book not in such a way that the difference of title is as element is distinguished, but with the difference of element functionally as differentiation
Criterion.Mentioned " comprising " is open term throughout the specification and claims, therefore should be construed to " including but
It is not limited to ".
Fig. 1 and Fig. 2 is please referred to, Fig. 1 is the flow diagram of test method provided in an embodiment of the present invention;Fig. 2 is this hair
The system module figure for the test macro that bright embodiment provides.
As shown in Figure 1, the invention proposes a kind of test methods for display module, comprising:
Step S100 obtains the limiting value of chromaticity coordinates and the limiting value of brightness in display module by processing module 100.
In this present embodiment, display module can be in display, smart television, PC or other display equipment
Display module etc., the present invention is not limited thereto.The basic hardware environment of the display module at least include display panel with
And backlight module, above-mentioned display panel are preferably liquid crystal display panel, and backlight module then include LED light, PCB circuit board and
Drive the components such as IC.In addition, the display module logically further includes having the moulds such as pattern acquiring, colour temperature are searched and colour temperature adjusts
Block.
Before step S100, tester can obtain the reality that multiple groups include chromaticity coordinates and brightness in defaulting under color temperature levels
Actual value, and the limiting value of chromaticity coordinates and the limiting value of brightness are obtained according to multiple groups actual value.For example, manufacturer is in 6500K's
The chromaticity coordinates of the display module and brightness are measured under color temperature levels, thus obtain 30 groups include chromaticity coordinates and brightness reality
Actual value, then above-mentioned numerical value is counted further by statistical estimations methods such as Six Sigma (6Sigma), by above-mentioned six west
Lattice Ma statistical method analytic operation show that the value range of the abscissa (X) of chromaticity coordinates is 0.311 ± 0.015, ordinate (Y)
Value range is 0.33 ± 0.013, and the value range of brightness is 253 ± 27nits.It should be noted that above-mentioned chromaticity coordinates and
The example value that the specific value of brightness is actually obtained in operating process, is used only as the explanation illustrated in order to embodiment herein.
Thus, the limiting value of the chromaticity coordinates of display module includes the upper limit value X of abscissamax, lower limit value Xmin, ordinate
Upper limit value Xmax, lower limit value Xmin, and the limiting value of brightness then includes upper limit value LmaxAnd lower limit value Lmin。
Then, display module can be by the processing modules such as central processing unit 100 to the limiting value and brightness of above-mentioned chromaticity coordinates
Limiting value handled, specifically, processing module 100 can be by the upper of the upper limit value of abscissa and lower limit value and ordinate
Combination of two between limit value and lower limit value, to form the value for being applied to the chromaticity coordinates of display picture.For example, chromaticity coordinates takes
Value can be (Xmin=0.296, Ymin=0.317), (Xmin=0.296, Ymax=0.343), (Xmax=0.326, Ymin=
0.317)、(Xmax=0.326, Ymax=0.343);And since user is usually to display module under specific circumstances minimum bright
Degree there are certain requirements, therefore in this present embodiment, the lower limit value of the brightness, such as above-described embodiment are preferably chosen to the value of brightness
It is previously mentioned, Lmin=226nits.
S200 is simulated by module 200 of mixing colours according to the limiting value of the chromaticity coordinates, so that the display module exports
Corresponding display image.
As above-described embodiment is previously mentioned, the value of chromaticity coordinates can be (Xmin=0.296, Ymin=0.317), (Xmin=
0.296, Ymax=0.343), (Xmax=0.326, Ymin=0.317), (Xmax=0.326, Ymax=0.343);It is understood that
It is, on a chromaticity diagram, chromaticity coordinates and color one-to-one correspondence, meanwhile, chromaticity coordinates is also corresponded with color temperature levels.
Tester sequentially can export corresponding display image according to the value of different chromaticity coordinates;For example, first according to first
Group chromaticity coordinates (Xmin=0.296, Ymin=0.317) the corresponding display image of control display module output, wherein above-mentioned display mould
Group can correspond to the corresponding display image of chromaticity coordinates by the toning output of module 200 such as toning software, it is preferable that display module
Data communication, and then the display figure exported by PC equipment control display module can be realized with the arithmetic facilities data connection such as PC
Picture.
Specifically, the present invention by the arithmetic facilities such as PC according to the relationship of x, y and R, G, B in the value of chromaticity coordinates,
The input signal of R, G, B are adjusted, simultaneously so as to adjust the value of x and y;Wherein, the x in R Gain (red gain) and chromaticity coordinates at
Direct proportion, G Gain (green gain) and the y in chromaticity coordinates are in direct ratio, and B Gain (blue gain) and x, y are inversely proportional.
Further, tester is in the gain for sequentially simulating corresponding R, G, B according to the value of different chromaticity coordinates, with
Make display module that should show image according to the gain output phase of R, G, the B.
S300 is simulated by brightness adjusting section 300 according to the limiting value of the brightness, the display image is arranged
Display brightness.
As above-described embodiment is previously mentioned, user is usually to have one to the minimum brightness of display module under specific circumstances
Provisioning request, therefore, in this present embodiment, with the lower limit value (L in the limiting value of brightnessmin) value as brightness;Tester
The image display brightness that display module can be controlled by the OSD menu in display device adjusts the mode of brightness not certainly
As limit.For example, tester can not only be adjusted the brightness of backlight module by OSD menu, it can also pass through electric current
Adjustment equipment is directly changed the driving current of backlight module, to change the driving current of the backlight module to adjust display module
The display brightness for exporting image, need to know that the present invention is not limited thereto, substantially be the pole for corresponding to brightness by adjusting
The driving current of limit value is to be arranged image display brightness.
It is understood that tester is by the combination of software and hardware will show mould after executing step S200 and S300
Group is modeled as an extreme situation, i.e. the chromaticity coordinates of the display module and brightness is in extreme situation, so that display module is aobvious
Show that state meets the specific condition of test.
More preferably, in step S100 into step S300, tester can be by optical gauge 500 (such as: color point
Analyzer etc.) chromaticity coordinates of picture that is exported to display module or the display brightness of its image carry out secondary verifying, and it is every to ensure
The accuracy of one step.
In S400, module 400 is adjusted by colour temperature, adjusts the color temperature mode of the display module to configure color temp.
A primary condition of the colour temperature as picture quality, different colour temperatures can also bring different feelings to user.And
Display module provided by the present invention has multiple color temperatures mode, which has different grades of color temp
(such as: 6500K, 7500K, 9300K) for selection by the user.
In actual mechanical process, tester can be by calling the screen of display module to adjust menu (on-screen
Display, OSD) to select above-mentioned color temperature mode, so that display module color temp according to corresponding to the color temperature mode
It is adjusted.As above-described embodiment is previously mentioned, color temperature levels and chromaticity coordinates are corresponded, and display module can be sat according to color
Mark further adjustment R, G, B gain.For example, display module includes the first color temperature mode, the second color temperature mode and third color
Warm mode, first, second and third color temperature mode are corresponding with color temperature levels, and each color temperature levels be corresponding with it is preset default
Chromaticity coordinates.For example, the first color temperature mode corresponds to the color temp of 6500K grade, and the color temp of the 6500K grade is also right
It should may is that (X=0.313, Y=0.329), but the present invention is not limited thereto in coordinate value of the same colour.Display module according to
Above-mentioned preset chromaticity coordinates value adjusts RGB gain again, to meet color temperature levels corresponding to above-mentioned color temperature mode.
It should be noted that display module is by adjusting RGB gain to change after the color temperature mode of adjustment display module
Chromaticity coordinates and colour temperature, and adjust RGB gain while also will affect the display brightness of display module.That is, the present invention passes through step
Rapid S100, S200 and S300 adjustment display module is to be at the specific condition for meeting test, and step S400 analog goes out
The concrete operations of user in actual use, such as: specific color temperature mode is chosen by the OSD menu of display module;So that
Tester can test the display module under specific condition, and being capable of mould by step S100 to step S300
A variety of chromaticity coordinates and brightness are drawn up, the display module in a variety of specific conditions can be also simulated, specific visual test
Depending on the demand of personnel, details are not described herein again.
It is bright to measure the actual displayed of the display image under the color temperature mode by optical gauge 500 by step S500
Degree.
In step S500, tester can be by optical gauge 500 (such as: color analysis instrument) to display module
The actual displayed brightness of displayed image is measured.For example, in step S300, the brightness value of display module is adjusted
To a lower limit value (such as: 226nits), and in previous step S400, tester after the color temperature mode of adjustment display module,
The actual displayed brightness of display image can change because of the successive difference between chromaticity coordinates, it is therefore desirable to which detection is aobvious again
Show whether the display brightness of mould group still reaches the rigid requirement of user (such as: at least more than being equal under the color temperature levels
210nits)。
In practical operation, tester can be by taking according to the obtained four groups of chromaticity coordinates of the limiting value of above-mentioned chromaticity coordinates
Value is sequentially tested, and under the specific condition simulated, user can also have minimum brightness corresponding to different-colour grade
Difference requires, and tester can be adjusted and be tested one by one according to the test method of above-mentioned display module.
Further, in the specific condition simulated, (such as: the value of chromaticity coordinates is (X to above-mentioned display modulemin=0.296,
Ymin=0.317), brightness value 226nits, the corresponding color temperature levels of color temperature mode be 6500K) under detect that actual displayed is bright
After degree, if its rigid requirement for meeting user, then display module reaches requirement in this time test;Tester can be according to upper
Method and step is stated, after carrying out crossing over many times test to it under the value of different chromaticity coordinates and different color temperature levels, to examine
It measures whether the display module fully meets user's requirement, if being unsatisfactory for, then notice manufacturer adjustment display module is needed to exist
Image display brightness under default or default setting, to change the limiting value of the display module display brightness.
In addition, as shown in Fig. 2, the present invention also provides a kind of test macro 10 for display module, the test macro 10
Include:
Processing module 100, to obtain the limiting value of the limiting value of chromaticity coordinates and brightness in display module;
Toning module 200, is coupled to processing module, and the toning module 200 according to the limiting value of the chromaticity coordinates to carry out
Simulation, so that the corresponding display image of display module output;
Brightness adjusting section 300, is coupled to processing module, and the brightness adjusting section 300 is to the limit according to the brightness
Value is simulated, the display brightness of the display image is arranged;
Colour temperature adjusts module 400, to adjust the color temperature mode of the display module to configure color temp;And
Optical gauge 500 measures actual displayed brightness of the display image under the color temperature mode.
Preferably, processing module 100 and toning module 200 are configured in the PC equipment with display module data connection
On, PC equipment can be with display module data connection, so that tester debugs display module by the PC equipment, example
Such as, processing module 100 and toning module 200 can be the image software with operational capability, to be sat according to the color got
Target limiting value correspondence obtains the value of chromaticity coordinates, to export display picture corresponding with the value of the chromaticity coordinates.
Above-mentioned brightness adjusting section 300 can be not only configured in the OSD menu of above-mentioned display device, can also be
The devices such as current regulating devices, above-mentioned current regulating devices can be directly attached to the backlight module in display module, to change
Become backlight module driving current with directly control display module output image display brightness, need to know the present invention not as
Limit is substantially by adjusting the driving current for the limiting value for corresponding to brightness to adjust image display brightness.
Above-mentioned colour temperature adjustment module 400 is then preferably the OSD menu of display module, and tester can pass through display module
OSD menu directly select above-mentioned color temperature mode so that display module pattern colour according to corresponding to the color temperature mode
Temperature is adjusted.Wherein, different-colour mode corresponds to different-colour grade, and different-colour grade is configured with corresponding lack
Chromaticity coordinates is saved, display module can further adjust R, G, B gain according to above-mentioned default chromaticity coordinates, to meet above-mentioned color temperature mode
Corresponding color temperature levels.
In when it is implemented, adjusting 400 pairs of display moulds of module in toning module 200, brightness adjusting section 300 and colour temperature
When the display picture of group is adjusted, tester can determine display picture by the optical gauges such as color analysis instrument 500
The design parameter in face, so that it is guaranteed that the accuracy of each step;In addition, in colour temperature adjustment module 400 to the colour temperature of display module
After being adjusted, tester determines the display brightness of current display picture to detect by above-mentioned optical gauge 500
Whether the brightness meets the rigid requirement of user.
It should be noted that the specific embodiment of the test method provided by the present invention for display module as described above,
Details are not described herein.In addition, the various pieces or function in the control logic of test method shown in Fig. 1 all can be by soft or hard
The combination of body is realized.
In conclusion the present invention provides a kind of test method and its system for display module, acquisition can be passed through
The limiting value of the limiting value of chromaticity coordinates and brightness in display module, according to the limiting value mould of the limiting value of the chromaticity coordinates and brightness
Intend the various extreme situations of the display module, so that the color temperature levels of display module are adjusted under various extreme situations,
It is finally reached the purpose of actual displayed brightness of the test display module under the color temperature levels.That is, the present invention can pass through color
The limiting value of coordinate and the multiple groups value of brightness simulate the extreme situation of display module, to detect in those extreme situations
Under, whether the actual displayed brightness of display module still meets user's requirement.Therefore, the present invention is not only practical, additionally it is possible to
Save certain testing cost.
The present invention is described by above-mentioned related embodiment, however above-described embodiment is only to implement example of the invention.
It must be noted that the embodiment disclosed is not limiting as the scope of the present invention.On the contrary, do not depart from spirit of the invention and
It is changed and retouched made by range, belongs to scope of patent protection of the invention.
Claims (10)
1. a kind of test method for display module, which is characterized in that this method comprises:
By processing module, the limiting value of chromaticity coordinates and the limiting value of brightness in display module are obtained;
It by module of mixing colours, is simulated according to the limiting value of the chromaticity coordinates, so that the corresponding display figure of display module output
Picture;
It by brightness adjusting section, is simulated according to the limiting value of the brightness, the display brightness of the display image is arranged;
Module is adjusted by colour temperature, adjusts the color temperature mode of the display module to configure color temp;And
By optical gauge, actual displayed brightness of the display image under the color temperature mode is measured.
2. the test method of display module as described in claim 1, which is characterized in that described " to obtain and analysis shows that mould group
Before the limiting value of middle chromaticity coordinates and the limiting value of brightness ", further includes:
The multiple groups chromaticity coordinates and the actual value of the brightness are obtained under color temperature levels in defaulting, and are analyzed according to the multiple groups actual value
The chromaticity coordinates and the limiting value of the brightness out.
3. the test method of display module as described in claim 1, which is characterized in that the limiting value of the chromaticity coordinates includes horizontal seat
The upper limit value and lower limit value of target upper limit value and lower limit value and ordinate;The limiting value of the brightness include the brightness upper limit value and
Lower limit value.
4. the test method of display module as claimed in claim 3, which is characterized in that described " according to the limit of the chromaticity coordinates
Value is simulated, so that the corresponding display image of display module output " before, further includes:
By combination of two between the upper limit value of the abscissa and the upper limit value and lower limit value of lower limit value and the ordinate to form this
The value of chromaticity coordinates, so that the display module exports the corresponding display image according to the value of the chromaticity coordinates.
5. the test method of display module as claimed in claim 4, which is characterized in that described " according to the limit of the chromaticity coordinates
Value is simulated, so that the corresponding display image of display module output " it specifically includes:
The toning module simulates corresponding RGB gain based on the value of the chromaticity coordinates, to control the display module according to the RGB
Gain output phase should show image.
6. the test method of display module as described in claim 1, which is characterized in that described " to adjust the color of the display module
Warm mode is to configure color temp " include:
The display module is according to the corresponding adjustment RGB gain of the color temperature mode, to configure the image of grade corresponding to the color temperature mode
Colour temperature.
7. the test method of display module as described in claim 1, which is characterized in that described " to adjust the color of the display module
Warm mode is to configure color temp " further include:
Call the adjustment menu of the display module to select the color temperature mode;
Wherein, which includes multiple color temperatures mode, which has different grades of color temp.
8. the test method of display module as claimed in claim 7, which is characterized in that the different grades of color temp with not
Chromaticity coordinates with value corresponds.
9. the test method of display module as described in claim 1, which is characterized in that described " according to the limiting value of the brightness
Adjustment image display brightness " specifically includes:
The brightness adjusting section is by adjusting the driving current for the limiting value for corresponding to the brightness to adjust the image display brightness.
10. a kind of test macro for display module, which is characterized in that the system includes:
Processing module, to obtain the limiting value of the limiting value of chromaticity coordinates and brightness in display module;
Mix colours module, be coupled to the processing module, the picture adjust module to be simulated according to the limiting value of the chromaticity coordinates,
So that the corresponding display image of display module output;
Brightness adjusting section is coupled to the processing module, which is simulated according to the limiting value of the brightness, with
The display brightness of the display image is set;
Colour temperature adjusts module, to adjust the color temperature mode of the display module to configure color temp;And
Optical gauge, to measure actual displayed brightness of the display image under the color temperature mode.
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CN113038110A (en) * | 2021-03-11 | 2021-06-25 | 深圳康佳电子科技有限公司 | White balance calibration method and device, terminal equipment and storage medium |
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