TW201239564A - Energy-saving method and device for adjusting color temperature - Google Patents

Abstract

An energy-saving method and device for adjusting color temperature is disclosed. Firstly, primary color coordinates of at least three primary colors and maximum brightness thereof are retrieved. Then, a plurality of mix centroid color coordinates and a system white point color coordinate are figured out by the primary color coordinates and a color zone of the primary colors is established with the mix centroid color coordinates. The color zone has at least three sub-zone, wherein each sub-zone is defined by four mix centroid color coordinates. Next, the sub-zone showing a mark color coordinate of a mark color temperature, which is used as a sub mark zone, is chosen. Unknown brightness solutions of two primary colors corresponding to the sub mark zone are figured out by the mix centroid color coordinated, maximum brightness, and system white point color coordinated corresponding to the sub mark zone. Finally, the color temperature of the primary colors is adjusted by the brightness solution and the maximum brightness. Hence, the goal of mostly saving energy is achieved.

Description

201239564 VI. Description of the Invention: [Technical Field] The present invention relates to a calibration technique, and more particularly to an energy-saving color temperature adjustment method and a calibration apparatus thereof. [Prior Art] The relationship between light brightness and color temperature (CT) and physiological response has been discussed in detail; and the effect of color temperature on human physiology has been extensively studied, and color temperature is also discussed. In addition, the lighting factors include illumination brightness, brightness distribution, brightness, brightness distribution, color rendering and color temperature, which help to make the lighting environment more comfortable or enjoyable, and the appropriate color temperature can achieve the appropriate situational atmosphere. An important factor. Therefore, people will adjust the lighting to different color temperatures for different surrounding environments, situational atmospheres and personal preferences. The Correlative Color Temperature (CCT) is used to describe the characteristics of the light source's chromaticity distribution perpendicular to the outside of the Planckian trajectory. Use red, green, and blue (rgb) fluorescent lights to control the color temperature of the lighting system. The most recent general illumination is to control the operating temperature of the light-emitting diode (LED) to improve the luminous efficacy of the LED. The general technique uses red, green, and blue LEDs to illuminate the source of light through the color mixing of the light, the brightness control of the color light, and the retention of the chromaticity points. Then, by individually controlling the pre-currents (IR, IG, IB) of the RGB LEDs, the chrominance coordinates of the original correlated color temperature are converted to another preferred chromaticity coordinate of the user, wherein the amount of pre-current of the original chromaticity coordinates is set. (IR, IG, IB) is the maximum saturated 'mixed (IR., IG., IB.) represents the maximum amount of pre-current. However, 'how to choose a suitable chromaticity coordinate to drive the maximum current through the specified RGB LED becomes the key to an optimized design. According to color theory, when the original chromaticity coordinates are converted to other chromaticity coordinates, the brightness of the 201239564 degree will be reduced. U.S. Patent No. 7,515,128 discloses a method for brightness compensation which utilizes a measurement _ silk distribution map _ color space, and then according to the international _ euphemism (cie) chromaticity coordinates corresponding to X, y, and From the equation F=0.256-0.184y-2.527xy+4.656xV4.657x/, degrees, the luminance γ and F _ Υ Χΐ |Χΐ() η=Κ are obtained by such a relationship, and the brightness compensation factor F is obtained, however, The compensated brightness does not reach the maximum brightness under the premise of energy saving. Therefore, the present invention has been made in view of the above-mentioned problems, and proposes an energy-saving color temperature adjustment method and a calibration device thereof to solve the problems caused by the prior art. SUMMARY OF THE INVENTION The main object of the present invention is to provide an energy-saving color temperature adjustment method and a calibration device thereof, which can be applied to the technology of multi-primary color illumination or display materials, and is energy-saving during color temperature point conversion. Silk requirements, and a maximum _ brightness, turn the purpose of the boots. In order to achieve the above object, the present invention provides an energy-saving color temperature adjustment method, which firstly captures the primary color coordinates of at least three primary colors and its maximum brightness (10) information, and then calculates the complex color coordinates to calculate the complex color-heavy block-line white coordinates. And (10) color center of gravity to create a color gamut of the primary color, the color gamut has at least three sub-regions, each __ sub-region is defined by four color center of gravity coordinates. Then select the sub-area to which the target color coordinate of the target color temperature belongs and use this as the target area. In the next step, in order to solve the problem, the radiance solution of the remaining unknown primary colors corresponding to the sub-target region is calculated from the centroid color coordinates and the maximum brightness unilateral white color coordinates. Finally, adjust the color temperature of all primary colors based on the brightness solution and maximum brightness. The invention also provides a Qingneng color warming device, which is connected to one of the emission-optical signals 201239564. The light source 'the optical signal comprises at least three primary colors, the energy-saving color temperature device comprises a photodetector, and the photodetector receives the optical signal. And the color information of the primary color of the above primary color and its maximum brightness and other color information "photodetector connection - at, and receive the primary color coordinates and maximum brightness, according to the original color coordinates to calculate the complex color center of gravity, color coordinates and "system white point color coordinates" The chromatic color center coordinates establish the color gamut of the primary color, and the color gamut has at least three sub-regions, each of which is defined by four color center of gravity coordinates. The processor is further selected—the sub-region to which the target color coordinate of the target color temperature belongs, as the sub-mesh domain, and according to the color-matching coordinates of the sub-target region, the maximum brightness and the color point of the auxiliary point are calculated, and the corresponding sub-field is calculated. The brightness solution of the remaining unknown primary colors. Handle the thief hairline connection—the brightness driver, the processor adjusts the color temperature of all the primary colors through the brightness driver based on the brightness solution and the maximum brightness. In order to enable the reviewing committee to further understand and touch the structural features and the effects achieved by the reviewing committee, the details of the stitching and the detailed description are as follows: [Embodiment] It is known from the prior art that When one color temperature is adjusted to another color temperature, there are an infinite number of brightness solutions, of which there are high and low 'but with the present invention, the maximum brightness can be obtained after the color temperature conversion; in other words, the invention reduces the color temperature after the adjustment. Loss of luminous flux, in order to achieve energy saving, green energy. Please refer to FIG. 1 'the energy-saving color temperature recording ig of the present invention, which is connected to the emission light source 12, which is a light-emitting diode illumination lamp or a backlight module, and the optical navigation includes at least Three primary colors. The energy-saving color temperature shun device (1) comprises a photodetector Μ, which receives the light "'" takes the color information of the primary color coordinates of all primary colors and its maximum brightness, wherein the number of primary colors is N, and the maximum brightness is the corresponding primary color. 8〇%~1〇〇% brightness 201239564 commit 3 'N is a positive integer, the above primary color coordinates are [, [XC<(2)], ..., μ called "less (four)], [χ明,少(10)]' and its maximum brightness is ((1) Hui, B (2), calendar, heart (8) employment, where 匚(1)'(10)"-"匚(8)"'匸(9) each represents the first solid color. Photodetector 14 is connected a processor 16, the processor 16 is connected to a memory 18 and a brightness driver 20' and receives the primary color coordinates and maximum brightness to store it in the storage and calculate the complex color center color coordinates P{C(7) according to the primary color coordinates. ,C(,,+1),·..,(10)丨 and a system white point color coordinate () 'mixed color center of gravity coordinates P{C(〇,C(z. +1),·..,} and system The white point color coordinates (heart, >^) are calculated by the following formula: At that time, p{c(7),c(/ + l),...,c(A:)}=G = kk V* tnr(B )Xc(p') γ (Μ) ; -), where /~ P=ij:mc(P) Σ^ρ) yc(P) Another when A^/W1 is 'p{c('),c(i + 1),.·.,C (iV), c(l), ·..,C(Ar)}=G =

Ir h Σ maP)xc^ + Σ m^p)xc:(P) Σ mc(P)yc(P) + Σ mC(p)yC(p) Σ% Σ^Ρ)+Σηιν{ρ) 1 Ρ :1 /Μ {f=L^r^—T-,^;~~~今-), ΛτηαΡ) Strict, (1-2); One^C(P) where Wc(/J) One jin (9) NN ^lmC:(p)XC(p) ^4mC(p)yC{p) y / P~^ />*1 v ^ , 1 C(p) (~~^ ~« ), where ^(:(9) Two (2) 〇 2 > c (P) p * i

Sw-> y〇(p) The processor 16 further establishes the color gamut of the primary color with the color center of gravity, which has (N-2) loops, and the sea loop has N sub-regions, each of the sub-regions Four color-matched center-of-grain coordinates 201239564 ?{印), 卬+ 1),.."(:(#), India), 0:(2),.."〇>-(#-7 + 1)] }, P{C(〇,C(/ + l)"",C(A〇,C(l),C(2),.",C[z-(AT~y + niaWAr P{ C( i -1), C(〇, C(/ +1),..., C(N), C(l), C(2),..., +1),..., and j with the following Son

(^•-(TV-y + llCtz-W-Wn'picO — lXCdcQ 匸(^0,匸(1),(7(2)”..,〇>-(#-7 + 1)]} Defining, wherein 1 target area is related. The processor 16 further selects a sub-area to which the target color coordinate of the target color temperature belongs, and the sub-target area is the i-th sub-area of the jth _th of the color gamut, Where i = state bone Wi is also N ' i (10) - 2 small j, m and n are positive integers. The processor 16 calculates the sub-color center color coordinates, maximum brightness and system white point color coordinates corresponding to the sub-target area. The brightness of the field corresponding to the unknown two primary colors, U("), is obtained by the following formula: (3); for i, then for k=il=m ' Fc(4)=4(8): /=:! i*m,n /β| >^mtn

Xw-X (4); For k=i+j+l=n N ηΧί:ίη,))[^Υ^)Λ^^ i*m,n · /:1 i*nt,n -—— ___ , then I," only ~) / (~(士/(~(8))/(Λ,(8)) where /(xc,)) = ^i> , /( ) = Z^ Λ.(7) 八.(〇 For the remaining k, Fcw=〇(5) ;(6) 〇201239564 When the shell solution (4) is found, the processor 16 can adjust the color temperature of all the primary colors through the brightness driver 2G. Before the minimum amount of loss is reduced, the maximum illumination brightness is reached. Please refer to the 2®H at the same time as shown in step 81〇. The photodetector 14 captures the color information of at least the primary colors of the three primary colors and their maximum brightness. The maximum brightness is 8〇%~loo% brightness of the corresponding primary color. Then, as shown in step S1S, the processor 16 calculates a complex color center-of-gravity color coordinate P{C(7), C((1)), ···, 〇^ according to the primary color coordinates. )} with a system white point color coordinates (乂, eight), where, and is a positive integer, the color center of gravity center coordinates P{C(〇'C(i + l)".., C(10) is based on the formula (1) (1) Calculated, the system white point color coordinates are calculated by formula (2) At the same time, the processor 16 establishes the color gamut of the primary color with the color center of gravity, the color gamut has (10)) loops, and each loop has one sub-region. Each sub-region consists of four color-matched center-of-grain coordinates P{C. (〇, C(z + l),...>CW,C(l),C(2),...,C[i-(iV--y + 1)]} λ P{ C( 〇, C(4)),·..,C (Λ〇,C(1),C(2),...,c[i. _ (ΛΓ川川,C[卜(u)]}}, P{ C(i-1) , C(〇, C(/ +1),..., C(N), C(l),C(2),..., CU~(Nj +1)] s C[i - (AA - y)]} > P{ C(i~ 1), C(i) y C(/ + A/ i and 』 with the sub-C (A〇, C(l)+ defined below] The area is related. Further, as shown in step S14, the processor 16 selects the target color 峨 < the target color coordinate belongs to the sub-target area, and the sub-target area is the gamut sub-area, where i=m+ 1, the caller = 1 > 1,, 丨, . J loops, the i-th J, m, n are all the steps of the meal, the next step is to solve the solution, as shown in step S16, the processor 16 is double. According to the sub-target area Corresponding to the 201239564 color center of gravity color coordinates, maximum brightness and system white point color coordinates, calculate the corresponding sub-target area The remaining solution luminance Unknown "two primary colors, the luminance of Xie ^), based according to the formula% (3), (4), (5), (6) is obtained. Finally, as shown in step S18, the processor % adjusts the color temperature of all primary colors through the brightness driver 2G based on the brightness solution and the maximum brightness, so as to have the maximum under the maximum current, the minimum loss of luminous flux, that is, the most energy-saving. Lighting brightness. In order to specifically describe the flow of the method proposed by the present invention, the following description will be made by taking the three primary colors red (R), green, and blue (B) as an example, that is, n=3, and please refer to both the first and third figures. Let C(1), C(2), and C(3) correspond to cW, c(6), and C(5), respectively, which represent the primary colors of red, green, and blue, respectively, whose primary color coordinates are pc (-, [ Seven (6), 々 (6)] and [Heart (Print less (10)], the maximum brightness is 继, 匕 (10), %), 黯. • First, the photodetector 14 receives the optical signal to capture, [minutes (6), Color information such as (6)], , heart (6), (10), :^(10), etc. Next, the processor 16 receives the primary color coordinates and the maximum brightness for storage in the storage 18, and calculates a complex color center of gravity color coordinate P according to the primary color coordinates. {C(7?)}, P{C(G)}, P{C(5)}, P{C(7?), C(G)}, P{ C(G), C(fi)} , P{ C(/?), C(5)}, P{ c(i?), C(C?), C(5)} and a system white point color coordinate (, where), where the color center of color Coordinates P{C(/〇}, P{C(G)}, P{C(5)}, P{C(^), C(G)} 'P{C(G), C(B)} 'P{C(/?),C(5)} 'P{C(^),C(G),C(5)} can be obtained according to formula (1), system white point color coordinates (, where) ) can be obtained according to the following formula: (Xwiyw ) = ( m('WX(:W + mC{G)XC:(G) + mC(H)XC(H) m(:(H)yC:Ut) + Speaking of C((;, yC(G, + mC(B, y(10))') WC(«) + ^C(C) + mc m , mc(R)+mC(G)+mC(H) where %:(6)w (7) less (, w less c(g) y(:(e) 201239564 At the same time, the processor 16 uses the color center of color The color gamut of the primary color is established. This color gamut has a loop. This loop has three sub-regions, of which the first sub-region (z〇nel)* }, P{ C(/?), C(G)}, P{ c(8) ' C(fi)}, P{ cw, C(G), C(fi)}, the second sub-region (zone2) is composed of P{C(5)}, P{C(G), C(5)}, P{C(8), C(B)}, P{C(8), C(G), C(fi)} are defined, and the third sub-region (zone3) is composed of p{C(G)}, P {C(/?), C(G)}, P{C(G), C(B)}, P{C(/?), C(G), C(B)} are defined. The processor 16 selects a sub-region to which the target color coordinate of the target color temperature belongs as a sub-target region. Let lsUN, Uj^N-2, i, and j be positive integers, and when the target color coordinate is located at z〇nel, 'j〒l; When the target color coordinate is located in zone2, j=i, 丨=2; when the target color coordinate is located at z〇ne3, j=l, i=3. Let i=m+i i+j%], m and n are A positive integer, and substituting the 丨 and 〗 described in the above paragraph into the formulas (3), (4), (5), (6), and rewriting them into ^; (phantom, C(G), C(5) forms, begging The sub-target area corresponding to the primary colors of the remaining two luminance unknown solutions (⑻ ,. When the right target color coordinate is located in zonel, the red brightness yc (magic 匕 (8), secret ^, green brightness

:~~—χ^^-ΖΐΖ«, xw~xii yw-yG

Y〇 yB yG Blue brightness 匕 (e): y〇

yG -1⁄2

yK ^LZ^jL^yw-yG χ.-χα y yw-yHyn y〇 y〇 yn ‘Green brightness If the color k coordinate is at z〇ne2, the blue brightness]^(8) is 匕(10) 201239564

K C(G) [YHx^tZlL·^ y^Zh. [Yex^^i!L ^__Ih yR_h_

X niZlii^yw-yit xw-xrxyw-y〇y,i yR y〇red brightness^ (Λ): —y〇yH y〇_Ζβ__ x^~xr ,t yw -y〇xw-x〇.. yw ~yn y, ty〇y〇 When the target color coordinates are in zone3, the green brightness yc(G) is }^

\G),MAX, red brightness 邑[yG x 么二ZiL]—y^-y» [匕xx^~x〇C(R)· Σμ_ yf; yH G yg —— ί/L x less”^w - ~ y«/~ yn

Less " ye y» yR blue brightness 4 (β) = - ^ - - 么 - ^ ^ - 〇 xw ~ ~ χ β yw ^ / e xw ~ xh ye yn yu ^ Finally 'processor 16 to formula (3), (4), (5), and (6) find all the luminance solutions as the basis for adjusting the color temperature of all the primary colors through the luminance driver 20, that is, completing all the processes. Next, the following four primary colors are taken as an example, that is, N=4, and please refer to both the figure and the fourth figure. Let C(1), C(2), C(3), and C(4) represent the four primary colors, respectively, whose primary color coordinates are [々(1)'>;(:(丨)], [^:(:(2 )'>>(:(2)],[^:(:(3),>^(3)] and [;£:0(4),>>(:(4)]' The maximum brightness is respectively, heart (2), similarity, y"c(3), M4^, Yc(4), /W>i especially 0. First, the photodetector 14 receives the optical signal to capture [xc(1) ,^(υ],[xc(2),处(2)], [XC(2)->yC〇)] ' [XC(A)->yC(A)]^^C(\) , MAX ' ^C(2), MAX ' ^C〇), MAX : (4), lake r, etc. Then, the processor 16 receives the primary color coordinates and the maximum brightness for storage in the storage 18, and The primary color coordinates calculate the complex color center of gravity center coordinates P{C(1)}, P{C(2)}, 12 201239564 P{C(3)}, P{C(4)}, P{C(1), C(2)}, P{C(2), C(3)}, P{C(3), C(4)}, P{C(4), C(1)}, P{C(1), C(2), C (3)}, P{C(2), C(3), C(4)}, P{C(3), C(4), C(1)}, P{C(4), C( 1), C(2)}, p{C(l), C(2), C(3), a4)}. With a system white point color coordinate d), where the color center of gravity center coordinates P{C( 1)}, P{C(2)}, P{Q3)}, P{C(4)}, P{C(1), C(2)}, P{C(2) C(3)}, P{C(3), C(4)}, P{C(4), C(1)}, P{C(1), C(2), C(3)}, P{C (2), C(3), 匸(4)}, P{ C(3), C(4), C(1)}, P{ C(4), C(1), C(2)}, P{ C(l), C(2 ), C(3), C(4)} can be obtained according to formula (1), and the system white point color coordinates () can be obtained according to formula (2). Meanwhile, the processor 16 establishes the primary color with the color center of gravity color coordinates. The color gamut, the gamut has two loops, each loop has four sub-regions, wherein the i-th sub-region (zonel) is composed of P{C(1)}, P{C(1), C(2) }, P{C(4), C(1)}, P{C(4), C(1), C(2)} are defined; the second sub-region (Z〇ne2) is defined by P{C(2)}, P{ C(l), C(2)}, P{ C(2), C(3)}, P{ C(l), C(2), C(3)} are defined; the third sub-region (zone3) by P{C(3)}, P{C(2), C(3)}, P{C(3), C(4)}, P{C(2), C(3), C(4 )} is defined; the fourth sub-region (zone4) consists of P{C(4)}, P{C(3), C(4)}, P{C(4), C(1)}, P{C(3), C( 4), defined by C(1)}; the 5th sub-region (z〇ne5) consists of P{C(1), C(2)}, P{C(4), C(1), C(2) }, P{C(1), C(2), C(3)}, 卩{(^1), (:(2), (:(3), (:(4)}); Sub-zone buckle 1166) by? {(:(2),匸(3)}, P{ C(1), C(2), C(3)}, P{ C(2), C(3), C(4)}, P{ C(l), C(2), C(3), C(4)} are defined; the 7th sub-region (z〇ne7) consists of P{C(3), C(4)}, P{C(2), C(3), C(4)}, P{ C(3), C(4), C(l) }, P{ C(l), C(2), C(3), 匸(4)} are defined; the 8th sub-region (zoneS) is composed of P{C( 4), C(1)}, P{C(4), C·(1), C(2)}, P{C(3), C(4), C(1)}, P{C(1), C( 2), C(3), C(4)} is defined. !3 201239564 Then, the processor 16 selects the sub-area to which the target color coordinate of the target color temperature belongs, as the sub-target area. Let 1 also N '1 fine_2 , i, J are positive integers. For example, if the target color coordinate is located in zone7, ie zone7 is the sub-target region, since z〇ne7 is the third sub-region of the second loop, so j=2, Bu3. Let i=m+1, 丨10nl, m, n be positive integers and the above i, j generation formulas (3), (4), (5), (4), can obtain the remaining unknown brightness corresponding to the lion domain Solution combination ^C(\%MAX + ^C(A) + ((2) ^C(2),MAX + ^C(l) + V iC(3) ^C(Z),MAX + ^C(2 ) + ^C(4) ^C(^),MAX + ^C(3) + ^C(l) ^C(\),MAX + ^C(2),MAX + ^C(4) + ^C(3) Subregion first subregion second subregion third subregion fourth subregion fifth subregion ^C(2),MAX + ^CCi),MAX + ^C(I) + ^C (4)

The sixth sub-area · The seventh sub-area, the eighth sub-area, the last processing benefit l6 is obtained by the formulas (1), (4), (5), (6), and all the brightness solutions are used to adjust the color temperature of all the primary colors by the brightness driving H 2G, that is, the entire process is completed. . ‘’.’τ, the above description] When the present invention is applied to the color temperature point conversion, the maximum illumination brightness can be used before energy saving and miscellaneous, so as to achieve the most energy-saving purpose. The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the practice of the present invention. Therefore, the shape, structure, characteristics and spirit of the patent application of the present invention are equally changed. And modifications are intended to be included in the scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a block diagram of the apparatus of the present invention. Figure 2 is a flow chart of the method of the present invention. Figure 3 is a two-dimensional diagram of the three primary color gamut boundaries of the present invention. Figure 4 is a two-dimensional map of the four primary color gamut boundaries of the present invention. 12 illumination source 16 processor 20 brightness driver [Main component symbol description] 10 color temperature adjustment device 14 photo detector 18 memory 15

Claims (1)

201239564 VII. Patent application scope: 1. A Langergy color temperature adjustment method, comprising the following steps: capturing at least three primary colors of the primary color coordinates and the maximum brightness thereof; calculating a plurality of color mixing centers, color coordinates and systems according to the primary color coordinates Self-dot color coordinates, and the color gamut of the primary color is established by the color-matching center-of-gravity color coordinates, the color gamut having at least three sub-regions, each of the sub-regions being defined by four color-matching center-of-color coordinates; selected-target color temperature The sub-region to which the target color coordinate belongs, and using the sub-target region as the sub-target region; calculating the sub-target region according to the Wei-color re-call coordinate of the sub-view position, the most A bright amount of the white point color coordinate of the system Corresponding to the unknown two brightness solutions of the primary colors; and adjusting the color temperature of the primary colors based on the brightness solution and the maximum brightness. 2. For the energy-saving color temperature adjustment method described in claim 1, wherein the number of primary colors is N ' Nd , and the primary color coordinates are inner (1), less c(1)], [heart (7), ^(7)] ..., 'less coffee', ...,, the maximum brightness is j^(丨), heart (2>, _, ..., 4(8), title, ..., 扉, the color gamut has (N_2) loops Each S-Hour circle has N sub-regions, each of which is represented by the four color-matched center-of-gravity coordinates P{ C(7), C(/ +1) ” ·, c(A〇, C(l ), C(2),...,C[H# - +1)]}, P{C(〇,C〇+ l)v..scW,C(l),C(2),..., C[/-(^-y + l)], cti-Civ-y + i)],^/-^-^)]} .P{C(/-1)SC(0,C(/+1 ),..., 〔(#)'匸(1),〇(2),...,〇>_(#-7 + 1)]} is defined, and the sub-target area is the color gamut The jth of the i-th sub-region of the loop, wherein 0(1), c(2), c(„), , c(Ar) each represent the nth primary color. 201239564 3. The energy-saving color temperature method described in the two items, the frame color center coordinates P{ C(7), C(z +1), ···, C(4)} are obtained by the following formula: mdp) Yc (p) Yc(P) Σ P^im lC(p) Σ P=im lC{P) When N2i>k21 is 'P{C〇), C(z + l), ..,,c(A〇,C( l), _." C(A〇}=G = N k N k Σ^Ρ)χ^ρ)+Σ^Ρ)χ^Ρ) Y,mC(p)yC(p)+YmC(p) yC(p) (P~' - f 1 p=\ , JV kΣΜαΡ) + Σ m P=i MC(p) XmC(P) k _Σ~> /):1 where WC(p) \p) y 〇, P) ; and the white point color coordinates of the system (xw, 乂d is obtained by the following formula: , ^ 2^mC(p)XC(p) ZjmCiP)y^P) YC{, (A:wJ^ ) = (-L_-., -1_-), where mc(p)=^· Σ^·(,> Σ ~ yc(p) (4) Production 1 4. Energy saving as described in item 3 of the patent application a color temperature adjustment method, wherein the i-color center-color coordinates corresponding to the sub-target region, the maximum brightness and the white point color coordinates of the system are used to calculate the brightness solution in the step of calculating i = m + l, i+j=ni, iskN, lsjsN-2, and the brightness solution B(4), B(4) is obtained according to the following formula: For ukd+j '; for k=i_l=m, 17 201239564 f{Xc(m)) /(yc{n)) - f{xC(n) )f(y〇/(^•(«» )[._Σ yc(〇/(^(〇)] - f(yC{n))[ X YC{i)f(xC(i))] fc{k)=YC(m)=—4:,,n ~—— -, wherein V) less (: (square for k = i + j + l = n, / " (~ ( ", >) [Σ (.⑴ '(low f.' (. ) / (less C(m))[ ^ /=1 i^m,n /»1 i*mtn where («)> /(^,.= , /〇;(w) = ^m ; Vc(i) ^'(0 for the remaining k, l"ca)=〇. S• The energy-saving color temperature adjustment method described in claim 1, wherein the maximum brightness is 80% of the corresponding primary color ～1〇〇% brightness. 6. The energy-saving color temperature adjustment method according to claim 1, wherein the quantity of the primary color is three times, the color gamut has a loop, and the loop has three Sub-region 7. The energy-saving color temperature adjustment method according to claim 1, wherein the number of primary colors is four, the color gamut has two loops, and each loop has four such sub-circles The energy-saving color temperature adjusting device is connected to one of the light sources, and the light signal comprises at least three primary colors. The energy-saving color temperature adjusting device comprises: - a light detector, which receives the light signal And capturing the primary color coordinates of the primary colors and their maximum brightness; the processor 'connects the light detection H, and receives the primary color coordinates and the maximum brightness to The primary color coordinates calculate a complex color center-of-gravity color coordinate and a unified white color coordinate, and the color gamut of the primary color is established by the color-matching center-of-color coordinates, the color gamut having at least three sub-regions 201239564 domain, each of the sub-regions Four of the color-matching center-of-grain coordinates are defined, and the processor further selects the sub-region to which the target color coordinate of the target color temperature belongs as the sub-target region, and according to the Wei-color center-of-grain color coordinate corresponding to the Xuanzi target region, the maximum The brightness and the system white point color coordinate 'calculate the brightness solution corresponding to the primary target area; and the redundancy driver is connected to the processor and the illumination source, and the processor uses the brightness solution and the maximum 70 degrees In order to adjust the color temperature of the primary colors according to the driving by the brightness. 9. The energy-saving color measuring device according to item 8 of the patent scope of the invention, wherein the light source is a light-emitting diode lighting fixture or a backlight module 10. The energy-saving color temperature adjustment device according to item 8 of the Shenqing patent scope further includes a storage unit connected to the processor, and the processor pairs the primary color coordinates with The maximum brightness is stored in the memory for calculation by the processor. 11. The energy-saving color temperature adjusting device according to claim 8 wherein the quantity of the primary colors is Ν Ν > 3 ' The primary color coordinates are [~(1), (1)], [text. (2), less c(2)], ..., [xc(«)'·)^")],...[尤(10)-丨"^ (4)], [xc(A〇, yc(yv)], the maximum brightness is ^C(\), MAX heart (2), lake T,..., 4(4), marriage;·,...yc(8),胤Y ' The color gamut has (N-2) loops, each loop having N of the sub-regions, each of the sub-regions being represented by the four color center-of-color coordinates P{C(z), C(z · +1),...,c*(A〇,C(l),C(2),...,C[/-; +1)]}, P{ C(/),C(z_ +1 ),.",C(A〇,C(l),C(2),"·,C[,-(W - ) +1)], C[/-(^-y)]} ' P{C(/-l), C(〇, C(/ + l),..., C(N), C(l), C(2),..., C[i-(Nj + 1)], C[i - (iV - ;)]} . P{ C(i -1), C(i), C(/ +1),..., C(A〇,C(1),(: (2),.",<:|>_-(#-7 + 1)] is defined, and the sub-target area is the i-th of the j-th circle of the color gamut region, In 19,201,239,564 from η represents the primary colors. 12_Energy-saving color temperature adjustment device as described in claim n, wherein the color coordinates Ρ{C(z_), C(i· +1), ..., you)} are obtained by the following formula : When A > D1, heavy /C> P{C(〇,C(四),...,c(,)}=G= (10) v where Λ 9 kp;i Ps* Yc (P) map)" yc{ p) 'At the time' P( C(i + 1),...,c(A〇,C(l) NN k ^map^p) + Σ^··(ρ)^·(ρ )Σ^ρ^ρ) ^mC(p)yap) C(k) ^ G SS: Pal mC(p) +'^dmC(p) Psl p°1_ 'C(p) T XWi (p) Psi pel iV Σ team (P) y〇mc(p) where "w ^C(p) : and the white point color coordinates (\,\) of the system are obtained by the following formula: ^ NL^-iP^cip) y Ps]_ mk C(p) /v Σ p^\ ), where C(P) m C(p) ^OPl, yap) 13. Energy-saving color temperature adjustment device as described in claim 12 Where i=m+1 ' if 1,1 mn ' U>N·2, and the luminance solution, rc(4) is obtained according to the following formula: For km丨+j ' 4(*)=匕(4)'(10) Especially; Il: 20 201239564 ^C(k) = (m) f ^XC[n) )[ Σ (Λ·)/))] ~ fiyc.(n))[ Σ ^:(i)f(xc< )] /=1 i off m,n /:1 i*m,n Medium A (0 less C(/) for k=i+j+i=n, /(^C(m))tX^C(〇/(3;CU))]~/(yc:(m)) [XiC(/)/(xr(〇)] ^C(A) = ^C(/7)==--^--C _ . /(^C(n) )/(^C(m) ) ~ f(X(:{m) )/(Λ(«)) where /(xc(〇) = ^l,/( ) = Z^I ; y(-'(〇y(:(〇for the rest k 14. rew=〇. 14. The energy-saving color temperature adjusting device according to claim 8, wherein the maximum brightness is 80%~1〇〇% brightness corresponding to the primary color. Item 8 of the energy-saving color temperature adjusting device, wherein the number of primary colors is three, the color gamut has a loop, and the loop has three sub-regions. 16. The energy-saving color temperature adjusting device according to claim 8, wherein the number of primary colors is four, the color gamut has two loops, and each loop has four sub-regions. twenty one