CN108461073A - A method of realizing dynamic control color temperature of display device consistency - Google Patents
A method of realizing dynamic control color temperature of display device consistency Download PDFInfo
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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
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
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Abstract
The invention discloses a kind of methods for realizing dynamic control color temperature of display device consistency, by in production unit to display device material aging, the course of work in the research that changes of the color temperature of display device caused by factors such as display material fever, operating ambient temperature variation and obtain variable quantity, colour temperature is carried out according to working time and environment temperature in use to calculate compensation rate in real time, the dynamic control of colour temperature consistency can be reached, it avoids the variation of colour temperature from bringing the visual sense of impure, the white colour cast of color to viewer, improves image displaying quality.
Description
Technical field
The present invention relates to image display technology field, more particularly to a kind of realization dynamic control color temperature of display device consistency
Method.
Background technology
Current image display system is using the display device with electrical characteristics, such as LCD (Liquid Crystal
Display) liquid crystal display device, PDP (Plasma Display Panel) plasma display apparatus, OLED (Organic
Light-Emitting Diode) organic light emitting display, Micro light-emitting diode display parts etc., these display devices just like
Lower denominator：
(1) in multiple prolonged use, display material understands aging and leads to color temperature change；
(2) increase with the working time in each use, display material generates heat caused by work can make its colour temperature
Variation；
(3) variation of ambient temperature in each use residing for display material can lead to its color temperature change.
Usually all there is display device used in display system because usage time length is aobvious in display i.e. in the prior art
Show in material aging, the course of work color temperature change problem caused by the factors such as display material fever, operating ambient temperature variation.
And color temperature change can bring the visual sense of its impure, white colour cast of color shown directly to viewer, i.e., it is aobvious
The colour temperature inconsequent for showing system, white balance can be caused, which to shift, influences its display effect.
Invention content
It is insufficient in above-mentioned background technology the purpose of the present invention is overcoming, a kind of realization dynamic control color temperature of display device is provided
The method of consistency can effectively solve display device used in display system because of the long display material aging of usage time, work
The inconsistent problem of colour temperature is, it can be achieved that aobvious caused by the factors such as display material generates heat in the process, operating ambient temperature changes
Show that the colour temperature of device carries out the effect of dynamic control with working time and variation of ambient temperature.
In order to reach above-mentioned technique effect, the present invention takes following technical scheme：
A method of it realizing dynamic control color temperature of display device consistency, is applied in the display system of display, tool
Body comprises the steps of：
S1., net cycle time counter, single operating hours counter are set in the display system, wherein the chief engineer
Make time counter for carrying out cumulative timing statistics to the working time of display, the single operating hours counter is used for
Timing is carried out to the single use time of display；
The timing being specifically, net cycle time counter is powered for the first time after display manufacture, shown numerical value
For Timer1, Timer1 data store in storage unit in the display system, unclear because of display system, display device power-off
It removes, when single operating hours counter mainly counts each working time of display, and each display device starts work
As when begin to timing statistics, the numerical value of display is Timer2, and Timer2 data are stored in the storage unit of display system,
It gives and removes when each display device powers off；
S2. the initial color temperature parameters (α of display system is obtained respectively1, β1, θ1), original intensity parameter LV, manufacture environment temperature
Spend C, aging color temperature compensating amount (the Δ α per n hours display systems2, Δ β2, Δ θ2), per m hours display systems work colour temperature
Compensation rate (Δ α3, Δ β3, Δ θ3), the operating ambient temperature of display system temperature color temperature compensating amount when K degrees Celsius of variation often occurs
(Δα4, Δ β4, Δ θ4), and enter step S3；
Wherein, color temperature parameters (α, β, θ) and original intensity parameter LVWith the correspondence of each colour system neutral color temperature parameter
As shown in the table：
| RGB colour systems | α=R | β=G | θ=B | / |
| XYZ colour systems | α=X | β=Y | θ=Z | / |
| Yxy colour systems | α=x | β=y | / | LV=Y |
| LUV colour systems | α=U | β=V | / | LV=L |
Wherein, α, β, θ are dimensionless group, LVCharacterize luminance parameter, unit cd/m2。
Initial color temperature parameters (the α1, β1, θ1) be display in manufacture to display system in environment temperature it is C Celsius
The initial best color temperature parameters set under conditions of degree；Initial color temperature parameters (α1, β1, θ1), luminance parameter LVAnd environment temperature
C is stored in the storage unit of display system, is not removed because of display system, display device power-off；
Aging color temperature compensating amount (the Δ α2, Δ β2, Δ θ2) reached n hours for the net cycle time of each display system
The color temperature compensating amount compensated to corresponding color temperature parameters in display system is needed when integral multiple；Aging color temperature compensating amount (Δ
α2, Δ β2, Δ θ2) and time value n be that manufacturer decays according to the aging of display device in a large amount of experiment when display system is dispatched from the factory
Color temperature change feature definitions, aging color temperature compensating amount (Δ α2, Δ β2, Δ θ2) and time value n can be stored in depositing for display system
In storage unit, it can also be used as constant and write in system software, and do not removed because of display system, display device power-off；
Work color temperature compensating amount (the Δ α3, Δ β3, Δ θ3) it is that the single working time of display system is whole up to m hours
The color temperature compensating amount compensated to corresponding color temperature parameters in display system is needed when several times；The color temperature compensating amount that works (Δ α3,
Δβ3, Δ θ3) and time value m when display system is dispatched from the factory by manufacturer according to display device in a large amount of experiment in the debugging efforts phase
Between colour temperature variation characteristic define, work color temperature compensating amount (Δ α3, Δ β3, Δ θ3) and time value m can be stored in display system
In storage unit, it can also be used as constant and write in system software, and do not removed because of display system, display device power-off；
Temperature color temperature compensating amount (Δ α4, Δ β4, Δ θ4) it is that the temperature of working environment of display system often occurs K degrees Celsius
The color temperature compensating amount compensated to corresponding color temperature parameters in display system is needed when variation；Temperature color temperature compensating amount (Δ α4,
Δβ4, Δ θ4) and temperature change value K be when display system is dispatched from the factory by manufacturer according to display device in a large amount of experiment in difference
Color temperature change feature definitions caused by working under environment temperature；Temperature color temperature compensating amount (Δ α4, Δ β4, Δ θ4) and temperature change
Change value K can be stored in the storage unit of display system, be can also be used as constant and write in system software, and not because display is
System, display device are powered off and are removed.
S3. display system current operating environment temperature T, the counting Timer1 of net cycle time counter, single work are obtained
Make the counting Timer2 of time counter；
S4. the current overall color temperature compensation rate of calculation display (Δ α, Δ β, Δ θ) and current best effort color temperature parameters value
(α, β, θ), wherein：
α=α1+Δα
β=β1+Δβ
θ=θ1+Δθ
S5. judge whether the colour system of current display system institute reference is RGB colour systems；
S6. if so, obtained current best effort color temperature parameters value (α, β, θ) value corresponds to RGB colour systems respectively
(R, G, B) parameter value, then according to be calculated (R, G, B) parameter value adjustment display system in control unit red, green, blue
The output quantity of three primary colours reaches color temperature of display device consistency dynamic control to complete colour temperature adjustment；Otherwise, it is sat by coloration
Mark relational expression by obtained current best effort color temperature parameters value (α, β, θ) value be transformed into RGB colour systems and calculate (R, G,
B) parameter value, further according to the red, green, blue three primary colours of control unit in (R, G, B) parameter value adjustment display system being calculated
Output quantity, to complete colour temperature adjustment reach color temperature of display device consistency dynamic control.
Further, current operating environment temperature value T is obtained by network in the step S3 or is set by user aobvious
Show system current operating environment temperature value T.
Further, if get display system current operating environment temperature value T not successfully, T is equal to manufacture environment
Temperature value C.
Further, also include that colour temperature is arranged in the display system to adjust timer, the colour temperature tune in the step S1
Whole timer is used to record the time interval that current time completed colour temperature adjustment apart from last time, wherein it is aobvious that colour temperature adjusts timer
The numerical value shown is Timer3, and Timer3 data are removed when display device powers off not to be retained.
Further, the step S2 is specially：
S2.1：Judge whether the counting Timer2 of single operating hours counter is less than time value t2If Timer2 ＜ t2,
S2.3 is then entered step, otherwise, enters step S2.2；
S2.2：Judge whether the time interval Timer3 shown by current colour temperature adjustment timer is less than time value t1If
Timer3 ＜ t1, then return to step S2.1 otherwise enter step S2.3；
S2.3：Initial color temperature parameters (the α of display system is obtained respectively1, β1, θ1), original intensity parameter LV, manufacture environment
Temperature C, aging color temperature compensating amount (the Δ α per n hours display systems2, Δ β2, Δ θ2), per m hours display systems work color
Warm compensation rate (Δ α3, Δ β3, Δ θ3), the operating ambient temperature of display system temperature color temperature compensating when K degrees Celsius of variation often occurs
Measure (Δ α4, Δ β4, Δ θ4), and enter step S3；
Wherein, t1、t2It is factory's definition, can be stored in the storage unit of display system, can also be used as constant and write
In system software, and do not removed because of display system, display device power-off, t2Where the display system when startup of equipment
Between.
By be arranged in the display system colour temperature adjust timer to current time and last time adjustment time interval value into
Row monitoring, and be defined on when display is started to work every time and carry out a colour temperature adjustment, subsequently at interval of time value t1Carry out one
Secondary colour temperature adjustment, avoidable adjustment is excessively frequent, and adjusting timer by colour temperature is monitored the time, can obtain in time current
Time interval apart from the adjustment of last time colour temperature.
Further, 0s≤t2≤ 60s, general t2It value, specific value can be passed through in the range to device power-up by factory
Between make statistics and calculate after obtain a suitable occurrence.
Further, the time value t2For 30s, which can meet the available machine time of most of equipment.
Further, in the step S3 also include step the step of colour temperature to be adjusted to the counting clearing of timer
Colour temperature adjustment timer restarts timing after completing colour temperature adjustment in S6.
Further, the display be television indicator, computer monitor, monitor display, PAD displays and/
Or mobile telephone display.
Compared with prior art, the present invention having advantageous effect below：
The present invention a kind of method for realizing dynamic control color temperature of display device consistency, by production unit to display
Color temperature of display device caused by the factors such as display material fever, operating ambient temperature variation in device material aging, the course of work
The research of variation simultaneously obtains variable quantity, to colour temperature calculate in real time according to working time and environment temperature in use and mend
The amount of repaying can reach the dynamic control of colour temperature consistency, and avoiding the variation of colour temperature from being brought to viewer, color is impure, white colour cast
Visual sense, improve image displaying quality.
Description of the drawings
Fig. 1 is the flow diagram of the method for the realization dynamic control color temperature of display device consistency of the present invention.
Specific implementation mode
With reference to the embodiment of the present invention, the invention will be further elaborated.
Embodiment：
In practical applications, colour temperature can be by a variety of coloration colour systems (such as：RGB color degree colour system, XYZ color tables
Colour system is united, Yxy colorations colour system, LUV coloration colour systems etc.) quantificational description and test are carried out, each coloration colour system
Quantization test data has the computational methods mutually converted, such as chromaticity coordinate relational expression.
The present invention uses α, β, θ, LVFour parameters describe colour temperature, wherein α, β, θ are dimensionless group, LVCharacterize brightness ginseng
Number, unit cd/m2, and α, β, θ, LVIt is as shown in the table with the correspondence of each colorimeter system neutral color temperature parameter：
Wherein, RGB colour systems are the basic colour systems of image procossing, and three primary colours are respectively：Wavelength is 700.0nm
Feux rouges (R), the green light (G) that wavelength is 546.1nm and the blue light that wavelength is 435.8nm (B).XYZ colour systems are in RGB tables
On the basis of colour system system, mathematically, three ideal primary colors is selected to replace actual three primary colors, thus by CIE-RGB
Spectral tristimulus value and chromaticity coordinate r, g, b in system become positive value gained.And Yxy colour systems and LUV colour systems
It is to be passed through obtained by simple transformation with XYZ colour systems again.
Therefore, carry out chromaticity quantization test that in practice can be according to the coloration colour system specifically selected to display system,
The quantization test data of each coloration colour system is mutually converted by the change types such as such as chromaticity coordinate relational expression again.
In the present embodiment, by taking RGB color degree colour system carries out quantization test as an example.
As shown in Figure 1, a kind of method for realizing dynamic control color temperature of display device consistency, main application in TV,
In the display system of the displays such as computer monitor, monitor, mobile phone, tablet computer, specifically comprise the steps of：
Wherein, preliminary step mainly has：
Step 1：Setting net cycle time counter, single operating hours counter and colour temperature adjustment in the display system
Timer, wherein the net cycle time counter is used to carry out cumulative timing statistics, the list to the working time of display
Task time counter is used to carry out timing to the single use time of display, and colour temperature adjustment timer is current for recording
Time gap last time completes the time interval of colour temperature adjustment；
The timing being specifically, net cycle time counter is powered for the first time after display manufacture, shown numerical value
For Timer1, Timer1 data store in storage unit in the display system, unclear because of display system, display device power-off
It removes.
Mainly each working time of display is counted when single operating hours counter, each display device is opened
Timing statistics is begun to when beginning work, the numerical value of display is Timer2, and Timer2 data are stored in the storage list of display system
In member, gives and remove when each display device powers off.
Colour temperature adjusts timer and starts timing after completing colour temperature adjustment every time, will when carrying out colour temperature adjustment every time
It counts and resets, and the adjustment of this colour temperature is waited for restart timing after the completion, the numerical value of display is Timer3, Timer3 data
It removes and does not retain when display device powers off.
The specific workflow of the method for the realization dynamic control color temperature of display device consistency of the present invention includes following step
Suddenly：
The first step judges whether present displays just start work by the counting Timer2 of single operating hours counter
Make, available machine time of general device is in 0 to 60 second, therefore factory can make statistics default one previously according to the device power-up time
A time value t2Startup as equipment expends the time, then as counting Timer2≤t of single operating hours counter2When, then may be used
It is just start-up operation to judge display currently.General t2Can in 0 to 60s value, and defined by factory, can be stored in aobvious
Show in the storage unit of system, can also be used as constant and write in system software, and not due to display system, display device power-off
It removes, t in the present embodiment2For 30s.
It directly can enter second step if judging display currently just to start to work if when Timer2≤30s, if
Timer2>30s then not just started to work by display, then needs further to judge current time distance by colour temperature adjustment timer
Last time completes the time interval of colour temperature adjustment；And need counting Timer3 >=t until colour temperature adjustment timer1Shi Caike enters
Second step；Wherein, t1For the time interval value adjusted in advance by the adjacent colour temperature twice of factory set, display system can be stored in
In the storage unit of system, it can also be used as constant and write in system software, and is unclear because of display system, display device power-off
It removes.
Second step obtains the initial color temperature parameters (R of display system respectively1, G1, B1), original intensity parameter LV, manufacture ring
Border temperature C, aging color temperature compensating amount (the Δ R per n hours display systems2, Δ G2, Δ B2), per m hours display systems work
Color temperature compensating amount (Δ R3, Δ G3, Δ B3), the operating ambient temperature of display system often occurs temperature colour temperature when K degrees Celsius of variation and mends
The amount of repaying (Δ R4, Δ G4, Δ B4) and net cycle time counter counting Timer1, single operating hours counter counting
Timer2, and obtained by network or user sets T degrees Celsius of display system current operating environment temperature, if do not get or
When user does not set, T is equal to manufacture environment temperature C, while colour temperature being adjusted to the counting clearing for counting Timer3 of timer.
Wherein, initial color temperature parameters (R1, G1, B1), original intensity parameter LV, manufacture environment temperature C be that display system is going out
The color temperature parameters that display device is set and is adjusted under conditions of environment temperature is C degrees Celsius when factory.Initial colour temperature
Parameter (R1, G1, B1), luminance parameter LVAnd environment temperature C is stored in the storage unit of display system, not because display system,
Display device is powered off and is removed.
Aging color temperature compensating amount (Δ R2, Δ G2, Δ B2) and n declined according to the aging of display device when display system is dispatched from the factory
Warm variation characteristic of losing lustre is defined by factory, aging color temperature compensating amount (Δ R2, Δ G2, Δ B2) and n can store in the display system
Storage unit in, not because display system, display device power-off due to remove, can also be used as constant and write in system software.
The color temperature compensating amount that works (Δ R3, Δ G3, Δ B3) and m when display system is dispatched from the factory according to display device work the phase
Between colour temperature variation characteristic defined by factory.The color temperature compensating amount that works (Δ R3, Δ G3, Δ B3) and m can store in the display system
Storage unit in, not because display system, display device power-off due to remove, can also be used as constant and write in system software.
Temperature color temperature compensating amount (Δ R4, Δ G4, Δ B4) and K when display system is dispatched from the factory according to display device in different rings
Color temperature change characteristic is defined by factory caused by working at a temperature of border.Temperature color temperature compensating amount (Δ R4, Δ G4, Δ B4) and K can
To store in storage unit in the display system, is not removed because of display system, display device power-off, can also be used as constant
It writes in system software.
Third walks, calculation display part overall color temperature compensation rate (Δ R, Δ G, Δ B), calculation formula：
4th step, calculation display part work at present color temperature parameters value (R, G, B):
R=R1+ΔR
G=G1+ΔG
B=B1+ΔB
5th step, according to R, G, the B and Δ R calculated, Δ G, Δ B parameter adjusts the red, green, blue of display control unit
The output quantity of three primary colours reaches color temperature of display device consistency dynamic and adjusts and return the first step, and colour temperature adjustment timing is thought highly of
It is new to start timing.
If it should be pointed out that user in actual use its be not based on RGB color degree colour system and carry out quantization test,
Also the above method can be used, corresponding color temperature parameters (α, β, θ) value can be also obtained, then pass through chromaticity coordinate relational expression again
Obtained color temperature parameters (α, β, θ) are transformed into RGB colour systems and convert the value for calculating R, G, B, so as to adjust display
The output quantity of the red, green, blue three primary colours of control unit reaches color temperature of display device consistency dynamic and adjusts.
It is understood that the principle that embodiment of above is intended to be merely illustrative of the present and the exemplary implementation that uses
Mode, however the present invention is not limited thereto.For those skilled in the art, in the essence for not departing from the present invention
In the case of refreshing and essence, various changes and modifications can be made therein, these variations and modifications are also considered as protection scope of the present invention.
Claims (9)
1. a kind of method for realizing dynamic control color temperature of display device consistency is applied in the display system of display, special
Sign is, specifically comprises the steps of：
S1., net cycle time counter, single operating hours counter are set in the display system, wherein when the total working
Between counter be used to carry out cumulative timing statistics to the working time of display, the single operating hours counter is used for aobvious
Show that the single use time of device carries out timing；
S2. the initial color temperature parameters (α of display system is obtained respectively1, β1, θ1), original intensity parameter LV, manufacture ambient temperature value C,
Aging color temperature compensating amount (Δ α per n hours display systems2, Δ β2, Δ θ2), per m hours display systems work color temperature compensating
Measure (Δ α3, Δ β3, Δ θ3), the operating ambient temperature of display system temperature color temperature compensating amount (Δ when K degrees Celsius of variation often occurs
α4, Δ β4, Δ θ4), and enter step S3；
Wherein, color temperature parameters (α, β, θ) and original intensity parameter LVWith the correspondence such as following table of each colour system neutral color temperature parameter
It is shown：
Initial color temperature parameters (the α1, β1, θ1) be display in manufacture to display system in environment temperature it is C degrees Celsius
Under the conditions of the initial best color temperature parameters that set；
Aging color temperature compensating amount (the Δ α2, Δ β2, Δ θ2) it is that the net cycle time of each display system reaches n hours integers
Times when need the color temperature compensating amount compensated to corresponding color temperature parameters in display system；
Work color temperature compensating amount (the Δ α3, Δ β3, Δ θ3) it is to reach m hours integral multiples the single working time of display system
When need the color temperature compensating amount compensated to corresponding color temperature parameters in display system；
Temperature color temperature compensating amount (Δ α4, Δ β4, Δ θ4) be display system working environment temperature often occur K degrees Celsius variation
When need the color temperature compensating amount compensated to corresponding color temperature parameters in display system；
S3. display system current operating environment temperature value T, the counting Timer1 of net cycle time counter, single work are obtained
The counting Timer2 of time counter；
S4. the current overall color temperature compensation rate of calculation display (Δ α, Δ β, Δ θ) and current best effort color temperature parameters value (α, β,
θ), wherein：
α=α1+Δα
β=β1+Δβ
θ=θ1+Δθ
S5. judge whether the colour system of current display system institute reference is RGB colour systems；
S6. if so, obtained current best effort color temperature parameters value (α, β, θ) value correspond to respectively RGB colour systems (R,
G, B) parameter value, then according to three base of red, green, blue of control unit in (R, G, B) parameter value adjustment display system being calculated
The output quantity of color, to complete colour temperature adjustment；
Otherwise, obtained current best effort color temperature parameters value (α, β, θ) value is transformed by RGB tables by chromaticity coordinate relational expression
Colour system unites and calculates (R, G, B) parameter value, single further according to being controlled in (R, G, B) parameter value adjustment display system being calculated
The output quantity of the red, green, blue three primary colours of member, to complete colour temperature adjustment.
2. a kind of method for realizing dynamic control color temperature of display device consistency according to claim 1, which is characterized in that
Current operating environment temperature value T is obtained by network in the step S3 or display system current operating environment is set by user
Temperature value T.
3. a kind of method for realizing dynamic control color temperature of display device consistency according to claim 1, which is characterized in that
If get display system current operating environment temperature value T not successfully, T is equal to manufacture ambient temperature value C.
4. a kind of method for realizing dynamic control color temperature of display device consistency according to claim 1, which is characterized in that
Also include that setting colour temperature adjustment timer, the colour temperature adjustment timer are worked as recording in the display system in the step S1
Preceding time gap last time completes the time interval of colour temperature adjustment.
5. a kind of method for realizing dynamic control color temperature of display device consistency according to claim 4, which is characterized in that
The step S2 is specially：
S2.1：Judge whether the counting Timer2 of single operating hours counter is less than time value t2If Timer2 ＜ t2, then into
Enter step S2.3, otherwise, enters step S2.2；
S2.2：Judge whether the time interval Timer3 shown by current colour temperature adjustment timer is less than time value t1If Timer3
＜ t1, then return to step S2.1 otherwise enter step S2.3；
S2.3：Initial color temperature parameters (the α of display system is obtained respectively1, β1, θ1), original intensity parameter LV, manufacture environment temperature C,
Aging color temperature compensating amount (Δ α per n hours display systems2, Δ β2, Δ θ2), per m hours display systems work color temperature compensating
Measure (Δ α3, Δ β3, Δ θ3), the operating ambient temperature of display system temperature color temperature compensating amount (Δ when K degrees Celsius of variation often occurs
α4, Δ β4, Δ θ4), and enter step S3.
6. a kind of method for realizing dynamic control color temperature of display device consistency according to claim 5, which is characterized in that
Also include the step of colour temperature to be adjusted to the counting clearing of timer, after completing colour temperature adjustment in the step S6 in the step S3
Colour temperature adjustment timer restarts timing.
7. a kind of method for realizing dynamic control color temperature of display device consistency according to claim 5, which is characterized in that
0s≤t2≤60s。
8. a kind of method for realizing dynamic control color temperature of display device consistency according to claim 7, which is characterized in that
The time value t2For 30s.
9. a kind of method for realizing dynamic control color temperature of display device consistency according to claim 1, which is characterized in that
The display is television indicator, computer monitor, monitor display, PAD displays and/or mobile telephone display.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109064997A (en) * | 2018-10-17 | 2018-12-21 | 宁波大红鹰学院 | Automatically adjust the method and display device of display device output colour temperature |
| CN111050452A (en) * | 2019-12-06 | 2020-04-21 | 广州星迪智能光电科技有限公司 | Color temperature consistency matching method |
| CN112614455A (en) * | 2020-03-25 | 2021-04-06 | 西安诺瓦星云科技股份有限公司 | Display screen color temperature drift compensation method, device and system and display control system |
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