CN104157261A - Display mode adjusting method of display device and display mode adjusting module thereof - Google Patents

Abstract

A display mode adjusting method and a display mode adjusting module executing the adjusting method are provided. The method includes the following steps: generating a saturation adjusting output color according to an input color to adjust the saturation; obtaining a relative color temperature adjusting parameter according to a target color temperature and an original optical characteristic of a display device; generating a color temperature adjusting output color according to the saturation adjusting output color and the relative color temperature adjusting parameter to adjust the color temperature; obtaining a brightness adjustment value according to the brightness of ambient light to adjust the brightness. The display mode adjusting method and the display mode adjusting module thereof integrate the adjustments of the saturation, the color temperature and the brightness of the screen, and a display mode of the display device is adjusted to a mode which is suitable for reading. The display mode suitable for reading is taken as an example, the RGB color light of the display device simulate to present cyan, magenta, yellow, and key black (CMYK) color gamut of a presswork, so as to provide a suitable display mode for reading, which avoids the eyestrain when the user reads for a long time.

Description

The display mode method of adjustment of display device and display mode adjusting module thereof

Technical field

The invention relates to a kind of display device, and particularly relevant for a kind of display mode method of adjustment and display mode adjusting module thereof.

Background technology

In the age of information prosperity now, for example utilizing desktop computer, panel computer, smart mobile phone or other display device to carry out data reading, play games or watch film has been one of major way of common people's acquired information or stress-relieving activity.

Yet what present due to the display mode of general display device is the display color of RGB colour gamut, therefore, if when reading for a long time or watching screen, easily makes user's eyes produce tired.

Summary of the invention

The display mode method of adjustment that the invention provides a kind of display device, comprises the following steps: receive one group of input color, and obtain corresponding saturation degree adjustment parameter according to the form and aspect of input color; According to input color and saturation degree, adjust parameter and obtain one group of saturation degree adjustment output color; Receiving target colour temperature, and obtain one group of relative colour temperature adjustment parameter according to target colour temperature and the original optical characteristics of display device; According to saturation degree adjustment output color and relative colour temperature, adjust parameter and obtain one group of colour temperature adjustment output color; According to environmental light brightness, obtain brightness adjustment value; And according to saturation degree adjustment output color, colour temperature adjustment output color or brightness adjustment value, change saturation degree, colour temperature and the brightness of display device.

The present invention also provides a kind of display mode adjusting module of display device, comprises saturation degree adjustment unit, color temperature adjusting unit and brightness adjustment unit.Saturation degree adjustment unit is adjusted parameter according to one group of input color and saturation degree and is obtained one group of saturation degree adjustment output color, and saturation degree adjustment unit also changes the saturation degree of display device according to saturation degree adjustment output color.Color temperature adjusting unit receiving target colour temperature, and obtain one group of relative colour temperature adjustment parameter according to target colour temperature and the original optical characteristics of display device, and color temperature adjusting unit is also adjusted parameter according to saturation degree adjustment output color and relative colour temperature and is obtained one group of colour temperature adjustment output color, to change the colour temperature of display device.Brightness adjustment unit obtains brightness adjustment value according to environmental light brightness, and brightness adjustment unit also changes the brightness of display device according to brightness adjustment value.

Therefore, display mode method of adjustment of the present invention and display mode adjusting module thereof are integrated saturation degree adjustment, colour temperature adjustment and screen intensity adjustment, particularly the display mode of display device are adjusted to the pattern that is applicable to reading.Take and be applicable to read being that the display mode of object is example, is to utilize the RGB coloured light of display device to simulate and the CMYK colour gamut that presents printed matter provides user one and is applicable to the display mode of reading, and makes user because long-term reading eyes easily do not produce fatigue.

Accompanying drawing explanation

Figure 1 shows that in identical color gamut space the relativeness schematic diagram of the RGB colour gamut that display device can present and the CMYK colour gamut of printed matter;

Fig. 2 A is depicted as the functional block diagram according to a kind of display mode adjusting module of one embodiment of the invention;

Fig. 2 B is depicted as the process flow diagram according to the display mode method of adjustment of a kind of display device of one embodiment of the invention;

Fig. 3 A and Fig. 3 B are depicted as respectively the schematic diagram of different embodiment of the saturation degree adjustment unit of Fig. 2 A;

Fig. 4 A is depicted as a kind of process flow diagram that obtains the method for relative colour temperature adjustment parameter according to one embodiment of the invention;

Fig. 4 B is depicted as on CIE1960 chrominance space, the enlarged drawing of the colour temperature curve of Planckian locus, daylight track and new definition;

Fig. 4 C is depicted as the process flow diagram that produces new colour temperature curve;

Fig. 4 D is depicted as on CIE1960 chrominance space, the relative schematic diagram of Planckian locus, daylight track and new colour temperature curve;

Fig. 4 E is depicted as on CIE1931 chrominance space, the relative schematic diagram of Planckian locus, daylight track and new colour temperature curve;

Shown in Fig. 5 A and Fig. 5 B, be respectively the schematic diagram of different embodiment of the color temperature adjusting unit of Fig. 2 A;

Shown in Fig. 6 A to Fig. 6 D, be respectively the saturation degree adjustment unit of Fig. 2 A and the various combination schematic diagram of color temperature adjusting unit;

Figure 7 shows that the schematic diagram that is related to of the environmental light brightness of different gains value and display screen.

Embodiment

Hereinafter with reference to relevant drawings, illustrate that wherein identical element is illustrated the reference marks with identical according to the display mode method of adjustment of the display device of the embodiment of the present invention.

Please refer to Fig. 1, it is in identical color gamut space, the relativeness schematic diagram of the RGB colour gamut that display device can present and the CMYK colour gamut of printed matter.Display device is for example and without limitation to liquid crystal indicator or organic LED display device, or other flat display apparatus.

Due under identical color gamut space, in the RGB colour gamut that can present compared to display device, the displayable Color Range of CMYK colour gamut less (triangle area that the triangle area that CMY surrounds surrounds compared with RGB) that general printed matter can present.In addition, compared to the shown picture of display device, general printed matter the person of presenting be suitable for reader's long-time reading.Therefore, display mode method of adjustment of the present invention is integrated saturation degree adjustment, colour temperature adjustment and screen intensity adjustment, and the RGB coloured light that utilizes display device is simulated and presents the CMYK colour gamut of printed matter, so that user to be provided one, be applicable to the display mode of reading, make user not because the long-term eyes of reading easily produce fatigue.

Please refer to Fig. 2 A and Fig. 2 B, Fig. 2 A is depicted as the functional block diagram according to a kind of display mode adjusting module of one embodiment of the invention, and Fig. 2 B is depicted as the process flow diagram according to the display mode method of adjustment of a kind of display device of one embodiment of the invention;

Display mode adjusting module 1 comprises saturation degree adjustment unit 11, color temperature adjusting unit 12 and brightness adjustment unit 13.Wherein, its function can software program mode be realized in saturation degree adjustment unit 11, color temperature adjusting unit 12 and brightness adjustment unit 13, or, also can application hardware or the mode of firmware realize the function of saturation degree adjustment unit 11, color temperature adjusting unit 12 and brightness adjustment unit 13, do not limit.

As shown in Figure 2 A, display mode method of adjustment comprises that step P01 is to step P06.

First, carry out step P01: receive one group of input color (R _in, G _in, B _in), and according to above-mentioned this group input color (R _in, G _in, B _in) form and aspect (hue) H _inobtain corresponding saturation degree and adjust parameter S.Wherein, above-mentioned this group input color (R _in, G _in, B _in) can be the arbitrary color in display device RGB colour gamut to display.In this, saturation degree adjustment unit 11 obtains inputting color (R _in, G _in, B _in) after, according to above-mentioned this group input color (R _in, G _in, B _in) obtain its form and aspect H _in, and then obtain above-mentioned form and aspect H _incorresponding saturation degree is adjusted parameter S.Wherein, saturation degree adjustment parameter S is form and aspect H _infunction: s=f _s(H _in), wherein S value can be between 0 to 2.

Then, carry out step P02: according to above-mentioned this group input color (R _in, G _in, B _in) and saturation degree adjust parameter S and obtain one group of saturation degree adjustment output color (R _sat, G _sat, B _sat).Wherein, by above-mentioned this group input color (R _in, G _in, B _in) and saturation degree adjust after parameter S input saturation degree adjustment unit 11, saturation degree adjustment unit 11 is also according to input color (R _in, G _in, B _in) and saturation degree adjust parameter S and obtain saturation degree adjustment output color (R _sat, G _sat, B _sat).The display mode that is applicable to reading as object of take is example, owing to will simulating the effect of less colour gamut (CMYK colour gamut), therefore saturation degree adjustment output color (R _sat, G _sat, B _sat) saturation degree must be less than or equal to input color (R _in, G _in, B _in) saturation degree.

Saturation degree adjustment unit 11 can for example comprise two kinds of following embodiment: the first embodiment of saturation degree adjustment unit 11 as shown in Figure 3A, inputs color (R _in, G _in, B _in), saturation degree adjusts parameter S and saturation degree adjustment output color (R _sat, G _sat, B _sat) satisfied following equation:

$\left[\begin{array}{c}{R}_{\mathrm{sat}}\\ G_{\mathrm{sat}}\\ B_{\mathrm{sat}}\end{array}\right]={\left[M_{\csc }^{-1}\right]}_{3\×3}\left[\begin{array}{ccc}1& 0& 0\\ 0& S& 0\\ 0& 0& S\end{array}\right]{\left[M_{\csc }\right]}_{3\×3}\left[\begin{array}{c}{R}_{\mathrm{in}}\\ G_{\mathrm{in}}\\ B_{\mathrm{in}}\end{array}\right]$

, wherein, [M _csc] and for 3x3 operation matrix, [M _csc] be color space translation operation matrix, for example, for color space conversion inverse operation matrix (conversion that can show the color space matrix of brightness and chroma is all applicable to this, YCbCr, YIQ chrominance space etc.), and M _satfor operation matrix, and

$M_{\mathrm{sat}}=\left[\begin{array}{ccc}1& 0& 0\\ 0& S& 0\\ 0& 0& S\end{array}\right]$

In addition, the second embodiment of saturation degree adjustment unit 11 as shown in Figure 3 B, the color saturation adjustment unit that its display adapter that comprises display device is built-in.Wherein, need first saturation degree to be adjusted parameter S and be converted to the built-in required form of saturation degree color adjustment element of display adapter, i.e. s '=f _{s '}(s), then according to input color (R _in, G _in, B _in) and saturation degree adjustment parameter S ' and obtain saturation degree adjustment output color (R _sat, G _sat, B _sat).Like this, the output saturation degree of capable of regulating display screen.

Then, then carry out step P03: receiving target colour temperature T, and according to the original optical characteristics of target colour temperature T and display device (for example: the RGB on the original the brightest rank of display device tristimulus values separately) obtaining one group of relative colour temperature adjusts parameter (R _coeff, G _coeff, B _coeff).The display mode that is applicable to reading as object of take is example, display is adjusted to partially warm correlated colour temperature, and the colour temperature before the colour temperature of the rear display screen of adjustment is not adjusted is partially warm, is used for increasing the comfort level that user reads.In addition, in relative colour temperature, adjust in parameter R _coefffor the relative colour temperature of redness is adjusted parameter, G _coefffor the relative colour temperature of green is adjusted parameter, B _coefffor the relative colour temperature of blueness is adjusted parameter.

As for how obtaining relative colour temperature, adjust parameter (R _coeff, G _coeff,B _coeff), please refer to shown in Fig. 4 A to Fig. 4 E, wherein, Fig. 4 A is depicted as a kind of process flow diagram that obtains the method for relative colour temperature adjustment parameter according to preferred embodiment of the present invention, Fig. 4 B is depicted as on CIE1960 chrominance space, Planckian locus, the enlarged diagram of the colour temperature curve (hereinafter referred to as new colour temperature curve) of daylight track and new definition, Fig. 4 C is depicted as the process flow diagram that produces new colour temperature curve, Fig. 4 D is depicted as on CIE1960 chrominance space, Planckian locus, the relative schematic diagram of daylight track and new colour temperature curve, and Fig. 4 E is depicted as on CIE1931 chrominance space, Planckian locus, the relative schematic diagram of daylight track and new colour temperature curve.

As shown in Figure 4 A, with color temperature adjusting unit 12, obtain above-mentioned this and organize relative colour temperature adjustment parameter, comprise that step S01 is to step S04.First, step S01 is: according to Planckian locus and the colour temperature curve of CIE daylight trajectory generation on CIE1931 chrominance space of reference color temperature, CIE1931 chrominance space.In the present embodiment, reference color temperature for example can be between (4000K≤colour temperature≤25000K, absolute temperature K be take as unit in the unit of colour temperature) between 4000K to 25000K.In other words; in order to meet general beholder's visual experience; color temperature adjusting unit 12 is not defined in the chromaticity coordinates of target colour temperature on the Planckian locus or CIE daylight track of CIE1931 chrominance space; but redefining a new colour temperature curve according to these two curves, this colour temperature curve relatively can meet general beholder's visual experience.

Below, please refer to Fig. 4 B to Fig. 4 E, how first explanation produces new colour temperature curve.Wherein, the step that produces new colour temperature curve comprises step G to step K.

As shown in Figure 4 C, first, step G is: the first chromaticity coordinates (x of the colour temperature within the scope of counting colour temperature on the Planckian locus X1 of CIE1931 chrominance space _c, y _c), and calculate the second chromaticity coordinates (x of this colour temperature on CIE daylight track X2 _d, y _d).Particularly, as shown in Figure 4 E, in order to obtain the new colour temperature curve X3 on CIE1931 chrominance space, can in reference color temperature (between 4000K to 25000K), first sample initial sampling spot, it is for example 4000K (also desirable different initial sampling spot, and the colour temperature T of 4000K is converted into the first chromaticity coordinates (x on the Planckian locus X1 of CIE1931 chrominance space 25000K or other value for example), _c, y _c) and CIE daylight track X2 on the second chromaticity coordinates (x _d, y _d).The first chromaticity coordinates (x _c, y _c) formula (1) that converts is:

x _C=-3.0258469(10 ⁹／T ³)+2.1070379(10 ⁶／T ²)+0.2226347(10 ³／T)+0.240390，

Y _c=3.0817580x _c ³-5.87338670x _c ²+ 3.75112997x _c-0.37001483, wherein, 4000K≤T≤25000K.In addition, the second chromaticity coordinates (x _d, y _d) the formula (2) of conversion be:

$x_D=\left\{\begin{array}{cc}0.244063+0.09911\frac{{10}^3}{T}+2.9678\frac{{10}^6}{T^2}-4.6070\frac{{10}^9}{T^3}& 4000K\&le;T\&le;7000K\\ 0.237040+0.24748\frac{{10}^3}{T}+1.9018\frac{{10}^6}{T^2}-2.0064\frac{{10}^9}{T^3}& 7000K<T\&le;25000K\end{array}\right.$

$y_D=-3.000x_D^2+2.870x_D-0.275$

Obtain the first chromaticity coordinates (x _c, y _c) and the second chromaticity coordinates (x _d, y _d) afterwards, then, as shown in Figure 4 D, carry out step H: by the first chromaticity coordinates (x _c, y _c) and the second chromaticity coordinates (x _d, y _d) be converted on CIE1960 chrominance space, to obtain the first corresponding chromaticity coordinates P (u _c, v _c) and the second corresponding chromaticity coordinates D (u _d, v _d).Its conversion formula (3) is:

$u=\frac{4x}{-2x+12y+3},v=\frac{6y}{-2x+12y+3}$

Then, carry out step I: according to the first corresponding chromaticity coordinates P (u _c, v _c) and the second corresponding chromaticity coordinates D (u _d, v _d) produce the colour temperature coordinate (u of above-mentioned colour temperature _new, v _new).In the present embodiment, as shown in Fig. 4 B and Fig. 4 D, in step H, color temperature adjusting unit 12 has calculated the first corresponding chromaticity coordinates P (u of colour temperature T on the Planckian locus U1 of CIE1960 chrominance space _c, v _c) with the second corresponding chromaticity coordinates D (u on CIE daylight track U2 _d, v _d), and step I extends out along vectorial PD from the second corresponding chromaticity coordinates D, to obtain this colour temperature T in the new colour temperature coordinate (u of CIE1960 chrominance space _new, v _new).Obtain colour temperature coordinate (u _new, v _new) formula (4) be:

$\stackrel{\&RightArrow;}{\mathrm{PD}}=(u_D-u_C,v_D-v_C)$

$(u_{\mathrm{New}},v_{\mathrm{New}})=D(u_D,v_D)+\mathrm{\&alpha;}\frac{\stackrel{\&RightArrow;}{\mathrm{PD}}}{\left|\mathrm{PD}\right|},\left|\mathrm{PD}\right|=\sqrt{{(u_D-u_C)}^2+{(v_D-v_C)}^2}$

Wherein, P (u _c, v _c) be the first corresponding chromaticity coordinates, D (u _d, v _d) be the second corresponding chromaticity coordinates, (u _nEW, v _nEW) be new colour temperature coordinate, and α value can be between 0.001 to 0.005.In addition, above-mentioned α value preferably gets 0.003.Therefore, in other embodiments, deviser can get different α values according to different visual experience demands.

Then, carry out step J: by colour temperature coordinate (u _new, v _new) be converted on CIE1931 chrominance space, to obtain new colour temperature coordinate (x _new, y _new).At this, as shown in Figure 4 E, color temperature adjusting unit 12 recycles above-mentioned formula (3) by the colour temperature coordinate (u on CIE1960 chrominance space _new, v _new) be converted on CIE1931 chrominance space and obtain new colour temperature coordinate (x _new, y _new).

Finally, carry out step K: repeating step G is to step J, to obtain above-mentioned these new colour temperature coordinate (x of a plurality of colour temperatures in reference color temperature _new, y _new), and then obtain colour temperature curve X3.At this, color temperature adjusting unit 12 obtains respectively corresponding new colour temperature coordinate (x after can obtaining different color temperature values according to interval sampling value again _new, y _new).In other words, can for example take 10K as interval sampling value, respectively the colour temperature of 4010K, 4020K, 4030K..., 25000K be repeated to step G to step J, just can obtain a plurality of new colour temperature coordinate (x corresponding on CIE1931 chrominance space _new, y _new), and by all new colour temperature coordinate (x _new, y _new) be linked to be a curve, to obtain the colour temperature curve X3 of step S01.Special one carries, and just for example, in other embodiments, interval sampling value is desirable different numerical value (for example 1K) also, and the numerical value of interval sampling value is less for the interval sampling value of above-mentioned 10K, and colour temperature curve X3 is just more accurate.

Therefore, according to the Planckian locus X1 of CIE1931 chrominance space and CIE daylight track X2, result from colour temperature curve X3 (Fig. 4 E) new on CIE1931 chrominance space afterwards, shown in Fig. 4 A, then carry out again step S02: calculate target colour temperature corresponding target color coordinates (x on colour temperature curve X3 _tw, y _tw) (figure does not show).At this, color temperature adjusting unit 12 is converted the new colour temperature curve X3 of target colour temperature utilization to draw target colour temperature corresponding target color coordinates (x on CIE1931 chrominance space to step J by above-mentioned steps G _tw, y _tw).Wherein, target colour temperature is display device and wants colour temperature to display in show image, and the scope of target colour temperature is still between between 4000K to 25000K.

Then, then carry out step S03: according to target color coordinates (x _tw, y _tw) produce respectively this example of new brightness of redness, green and blueness with redness (R), green (G) and blue (B) tristimulus values separately on the brightest rank of display device.At this, redness, green and blue values X, Y, the Z on original the brightest rank that wish is adjusted to the display device of colour temperature utilizes following formula (5) to convert respectively the chromaticity coordinates (x on CIE1931 chrominance space to, y) after, then with the target color coordinates (x of target colour temperature _tw, y _tw) utilize following formula (6) to calculate new this example of brightness of redness, green and blueness.Wherein, redness, green and the blue tristimulus values on bright rank of display device are respectively: (X _r, Y _r, Z _r), (X _g, Y _g, Z _g), (X _b, Y _b, Z _b), and formula (5) is: x=X/ (X+Y+Z), y=Y/ (X+Y+Z), and the formula of the new brightness ratio of target colour temperature (6) is (R of capital and small letter, G, B represent redness, green, blueness respectively):

$\begin{array}{c}{\mathrm{Ratio}}_R:{\mathrm{Ratio}}_G:{\mathrm{Ratio}}_B=\\ \left[\begin{array}{cc}\frac{x_{\mathrm{tw}}-x_g}{y_g}& \frac{x_{\mathrm{tw}}-x_b}{y_b}\\ \frac{y_{\mathrm{tw}}-y_g}{y_g}& \frac{y_{\mathrm{tw}}-y_b}{y_b}\end{array}\right]:\left[\begin{array}{cc}\frac{x_{\mathrm{tw}}-x_b}{y_b}& \frac{x_{\mathrm{tw}}-x_r}{y_r}\\ \frac{y_{\mathrm{tw}}-y_b}{y_b}& \frac{y_{\mathrm{tw}}-y_r}{y_r}\end{array}\right]:\left[\begin{array}{cc}\frac{x_{\mathrm{tw}}-x_r}{y_r}& \frac{x_{\mathrm{tw}}-x_g}{y_g}\\ \frac{y_{\mathrm{tw}}-y_r}{y_r}& \frac{y_{\mathrm{tw}}-y_g}{y_g}\end{array}\right]\end{array}$

Obtain, after this example of new brightness, then carrying out step S04: according to red, green and blue above-mentioned these new brightness ratios and redness, green and blue tristimulus values, produce respectively above-mentioned this and organize relative colour temperature adjustment parameter (R _coeff, G _coeff, B _coeff).At this, utilize following equation to obtain above-mentioned this and organize relative colour temperature adjustment parameter (R _coeff, G _coeff, B _coeff), R _coeff(formula is shown as Coef _r) be that red relative colour temperature is adjusted parameter, G _coeff(formula is shown as Coef _g) be that green relative colour temperature is adjusted parameter, B _coeff(formula is shown as Coef _b) be that blue relative colour temperature is adjusted parameter, and the m screen characterisitic parameter that is display device.

${\mathrm{Coef}}_i={\left(\frac{{Y^{\&prime;}}_i}{Y_i}\right)}^{\frac{1}{m}},i\&Element;\{R,G,B\},{Y^{\&prime;}}_i=A_{\min }\&times;i_{\mathrm{ratio}}$

$A_{\min }=\mathrm{Min}(\frac{Y_R}{{\mathrm{Ratio}}_R},\frac{Y_G}{{\mathrm{Ratio}}_G},\frac{Y_B}{{\mathrm{Ratio}}_B})$

Color temperature adjusting unit 12 obtains above-mentioned this and organizes relative colour temperature adjustment parameter (R _coeff, G _coeff, B _coeff) afterwards, then, referring again to Fig. 2 B, carry out step P04: according to saturation degree adjustment output color (R _sat, G _sat, B _sat) and above-mentioned this organize relative colour temperature and adjust parameter (R _coeff, G _coeff, B _coeff) obtain one group of colour temperature adjustment output color (R _out, G _out, B _out).At this, color temperature adjusting unit 12 can for example comprise two kinds of following embodiment: the first embodiment of color temperature adjusting unit 12 as shown in Figure 5A, wherein, saturation degree adjustment output color (Rsat, Gsat, Bsat), relative colour temperature are adjusted parameter (Rcoeff, Gcoeff, Bcoeff) and colour temperature adjustment output color (Rout, Gout, Bout) meet following equation:

$\left[\begin{array}{c}{R}_{\mathrm{out}}\\ G_{\mathrm{out}}\\ B_{\mathrm{out}}\end{array}\right]=\left[\begin{array}{ccc}\mathrm{R\; coeff}& 0& 0\\ 0& \mathrm{G\; coeff}& 0\\ 0& 0& \mathrm{B\; coeff}\end{array}\right]\left[\begin{array}{c}{R}_{\mathrm{sat}}\\ G_{\mathrm{sat}}\\ B_{\mathrm{sat}}\end{array}\right]$

In addition, the second embodiment of color temperature adjusting unit 12 as shown in Figure 5 B, redness, green and blue look-up table (Look-up Table, LUT) that its display adapter that is display device is built-in.Wherein, red, green and blue operational formula is as follows:

R _out(i)=LUT _R(i)=R _coeff×R _sat(i),wherei=1，2，...,255，

G _out(i)=LUT _G(i)=G _coeff×G _sat(i)，wherei=1,2,...,255，

B _out(i)=LUT _B(i)=B _coeff×B _sat(i),wherei=1,2,...,255。

It is worth mentioning that, because the saturation degree adjustment unit 11 in above-mentioned and color temperature adjusting unit 12 can comprise respectively two kinds of different embodiment, therefore, saturation degree adjustment unit 11 and color temperature adjusting unit 12 can have four kinds of combinations as shown in Fig. 6 A to Fig. 6 D.Wherein, Fig. 6 A is the combination of Fig. 3 A and Fig. 5 A, and Fig. 6 B is the combination of Fig. 3 A and Fig. 5 B, and Fig. 6 C is the combination of Fig. 3 B and Fig. 5 A, and Fig. 6 D is the combination of Fig. 3 B and Fig. 5 B.

In addition, referring again to Fig. 2 A, Fig. 2 B and Fig. 7, carry out step P05: according to environmental light brightness, obtain brightness adjustment value.At this, brightness adjustment unit 13 is by setting up brightness adjustment curve between environmental light brightness and display screen brightness.Wherein, the brightness of the display screen of display device and the brightness of surround lighting are proportionate.In addition, brightness adjustment unit 13, according to the ambient light of different brightness, is adjusted and is applicable to the screen intensity that human eye is read, to reduce the drop of screen intensity and environmental light brightness, easily tired while avoiding human eye to watch display screen.Wherein, if surround lighting is brighter, screen is just brighter; Otherwise surround lighting is darker, screen is just darker, and then produces a base curve B _base: B _base(i)=f _nits(A (i)), wherein A (i) represents surround lighting, B _basethe basic screen intensity of representative correspondence under this surround lighting.In addition, because different users is different to the hobby of screen intensity, therefore, the present embodiment also defines a yield value G, and the corresponding screen intensity curve of the surround lighting finally presenting is B(i)=G * B _base(i).As shown in Figure 7, Fig. 7 has shown brightness adjustment curve C 1～C3 of three different gains value G, and user can select different brightness adjustment curves according to its demand.Therefore,, when selecting a certain brightness adjustment curve, by the surround lighting of sensing reality, just can obtain brightness adjustment value by brightness adjustment unit 13.

Finally, carry out step P06: according to above-mentioned this group saturation degree adjustment output color (R _sat, G _sat, B _sat), above-mentioned this group colour temperature adjustment output color (R _out, G _out, B _out) or brightness adjustment value change saturation degree, colour temperature or the brightness of display device.Wherein, by saturation degree adjustment unit 11, according to above-mentioned this group saturation degree adjustment, export color (R _sat, G _sat, B _sat) change the saturation degree of display device, also by color temperature adjusting unit 12 according to above-mentioned this group colour temperature adjustment output color (R _out, G _out, B _out) change the colour temperature of display device, or by brightness adjustment unit 13, according to brightness adjustment value, change the brightness of display device, like this, complete the adjustment of display device saturation degree, colour temperature or brightness.One carry again, adjust in the step of saturation degree, colour temperature or brightness, need first adjust saturation degree and (first obtain saturation degree adjustment output color (R _sat, G _sat, B _sat)), adjust again afterwards colour temperature and (obtain again colour temperature adjustment output color (R _out, G _out, B _out)), still, the adjustment of brightness not necessarily will also can first be adjusted the brightness of display screen and adjust its saturation degree and colour temperature again afterwards after saturation degree adjustment or colour temperature adjustment, and the present invention does not limit.

In sum, in display mode method of adjustment and display mode adjusting module thereof because of display device of the present invention, display mode method of adjustment comprises: receive one group of input color, and obtain corresponding saturation degree adjustment parameter according to the form and aspect of above-mentioned this group input color; According to above-mentioned this group input color and saturation degree, adjust one group of saturation degree adjustment output color of parameter generating; Receiving target colour temperature, and obtain one group of colour temperature adjustment output color of one group of relative colour temperature adjustment parameter generating according to the original optical characteristics of target colour temperature and display device; According to environmental light brightness, obtain brightness adjustment value to change display device output brightness; And saturation degree, colour temperature or the brightness of according to above-mentioned this group saturation degree adjustment output color, above-mentioned this group colour temperature adjustment output color or brightness adjustment value, adjusting display device.Therefore, display mode method of adjustment of the present invention and display mode adjusting module thereof are integrated saturation degree adjustment, colour temperature adjustment and screen intensity adjustment, and take and be applicable to read being that the display mode of object is example, the RGB coloured light that utilizes display device is simulated and is presented the CMYK colour gamut of printed matter, and then user is provided a display mode that is applicable to reading, make user because the long-term eyes of reading easily do not produce fatigue.

Although the present invention discloses as above with preferred embodiment; so it is not in order to limit the present invention; under any, in technical field, have and conventionally know the knowledgeable; without departing from the spirit and scope of the present invention; when doing a little change and retouching, so protection scope of the present invention is when being as the criterion depending on claims person of defining.

Claims (20)

1. a display mode method of adjustment for display device, comprising:

Receive one group of input color, and obtain corresponding saturation degree adjustment parameter according to the form and aspect of above-mentioned this group input color;

According to above-mentioned this group input color and above-mentioned saturation degree, adjust parameter and obtain one group of saturation degree adjustment output color;

Receiving target colour temperature, and obtain one group of relative colour temperature adjustment parameter according to the original optical characteristics of above-mentioned target colour temperature and above-mentioned display device;

According to above-mentioned this group saturation degree adjustment output color and above-mentioned this, organize relative colour temperature adjustment parameter and obtain one group of colour temperature adjustment output color;

According to environmental light brightness, obtain brightness adjustment value; And

According to above-mentioned this group saturation degree adjustment output color, above-mentioned this group colour temperature adjustment output color or above-mentioned brightness adjustment value, change saturation degree, colour temperature or the brightness of above-mentioned display device.

2. display mode method of adjustment according to claim 1, it is characterized in that, wherein, in obtaining the step of above-mentioned this group saturation degree adjustment output color, the saturation degree of above-mentioned this group saturation degree adjustment output color is less than or equal to the saturation degree of above-mentioned this group input color.

3. display mode method of adjustment according to claim 1, it is characterized in that, wherein, in obtaining the step of above-mentioned this group saturation degree adjustment output color, above-mentioned this group input color, above-mentioned saturation degree adjust parameter and above-mentioned this group saturation degree adjustment output color meets following equation:

$\left[\begin{array}{c}{R}_{\mathrm{sat}}\\ G_{\mathrm{sat}}\\ B_{\mathrm{sat}}\end{array}\right]={\left[M_{\csc }^{-1}\right]}_{3\&times;3}\left[\begin{array}{ccc}1& 0& 0\\ 0& S& 0\\ 0& 0& S\end{array}\right]{\left[M_{\csc }\right]}_{3\&times;3}\left[\begin{array}{c}{R}_{\mathrm{in}}\\ G_{\mathrm{in}}\\ B_{\mathrm{in}}\end{array}\right]$

, wherein, (R _in, G _in, B _in) be above-mentioned this group input color, (R _sat, G _sat, B _sat) be above-mentioned this group saturation degree adjustment output color, [M _csc] be color space translation operation matrix, for color space conversion inverse operation matrix, and S is that above-mentioned saturation degree is adjusted parameter, and wherein S value can be between 0 to 2.

4. display mode method of adjustment according to claim 1, is characterized in that, wherein organizes relative colour temperature and adjusts in the step of parameter obtaining above-mentioned this, comprises:

Planckian locus and the colour temperature curve of CIE daylight trajectory generation on CIE1931 chrominance space according to reference color temperature, CIE1931 chrominance space;

Calculate above-mentioned target colour temperature corresponding target color coordinates on above-mentioned colour temperature curve;

According to redness, green and the blue tristimulus values on the brightest rank of above-mentioned target color coordinates and above-mentioned display device, produce respectively this example of new brightness of redness, green and blueness; And

According to red, green and blue above-mentioned these new brightness ratios and redness, green and blue tristimulus values, produce respectively above-mentioned this and organize relative colour temperature adjustment parameter.

5. display mode method of adjustment according to claim 4, is characterized in that, wherein, in producing the step of above-mentioned colour temperature curve, comprises:

Calculate colour temperature in above-mentioned reference color temperature the first chromaticity coordinates on the Planckian locus of CIE1931 chrominance space, and calculate second chromaticity coordinates of above-mentioned colour temperature on CIE daylight track;

Above-mentioned the first chromaticity coordinates and above-mentioned the second chromaticity coordinates are converted on CIE1960 chrominance space, to obtain the first corresponding chromaticity coordinates and the second corresponding chromaticity coordinates;

According to above-mentioned the first corresponding chromaticity coordinates and above-mentioned the second corresponding chromaticity coordinates, produce the colour temperature coordinate of above-mentioned colour temperature;

By above-mentioned colour temperature coordinate conversion to CIE1931 chrominance space, to obtain new colour temperature coordinate; And

Repeat above-mentioned steps, to obtain above-mentioned these new colour temperature coordinates of a plurality of colour temperatures in above-mentioned reference color temperature, and then obtain above-mentioned colour temperature curve.

6. display mode method of adjustment according to claim 5, is characterized in that, wherein, in producing the step of above-mentioned colour temperature coordinate, above-mentioned colour temperature coordinate meets following equation:

$(u_{\mathrm{New}},v_{\mathrm{New}})=D(u_D,v_D)+\mathrm{\&alpha;}\frac{\stackrel{\&RightArrow;}{\mathrm{PD}}}{\left|\mathrm{PD}\right|},\stackrel{\&RightArrow;}{\mathrm{PD}}=(u_D-u_C,v_D-v_C)$

$\left|\mathrm{PD}\right|=\sqrt{{(u_D-u_C)}^2+{(v_D-v_C)}^2}$

, wherein, P (u _c, v _c) be above-mentioned the first corresponding chromaticity coordinates, D (u _d, v _d) be above-mentioned the second corresponding chromaticity coordinates, (u _nEW, v _nEW) be above-mentioned colour temperature coordinate, and α is between 0.001 to 0.005.

7. display mode method of adjustment according to claim 1, is characterized in that, wherein, in obtaining the step of above-mentioned this group colour temperature adjustment output color, should meet following equation:

$\left[\begin{array}{c}{R}_{\mathrm{out}}\\ G_{\mathrm{out}}\\ B_{\mathrm{out}}\end{array}\right]=\left[\begin{array}{ccc}\mathrm{R\; coeff}& 0& 0\\ 0& \mathrm{G\; coeff}& 0\\ 0& 0& \mathrm{B\; coeff}\end{array}\right]\left[\begin{array}{c}{R}_{\mathrm{sat}}\\ G_{\mathrm{sat}}\\ B_{\mathrm{sat}}\end{array}\right]$

, wherein, (R _out, G _out, B _out) be above-mentioned this group colour temperature adjustment output color, (R _coeff, G _coeff, B _coeff) be that above-mentioned this organized relative colour temperature adjustment parameter, and (R _sat, G _sat, B _sat) be above-mentioned this group saturation degree adjustment output color.

8. display mode method of adjustment according to claim 1, is characterized in that, wherein, in obtaining the step of above-mentioned this group colour temperature adjustment output color, should meet following equation:

R _out(i)=LUT _R(i)=R _coeff×R _sat(i),wherei=1,2,...,255，

G _out(i)=LUT _G(i)=G _coeff×G _sat(i)，wherei=1,2,...,255，

B _out(i)=LUT _B(i)=B _coeff×B _sat(i)，wherei=1,2,...,255，

Wherein, (R _out, G _out, B _out) be above-mentioned this group colour temperature adjustment output color, (R _coeff,G _coeff,B _coeff) be that above-mentioned this organized relative colour temperature adjustment parameter, (R _sat, G _sat, B _sat) be above-mentioned this group saturation degree adjustment output color, and the look-up table in the LUT display adapter that is above-mentioned display device.

9. display mode method of adjustment according to claim 1, is characterized in that, wherein, in the step of brightness of adjusting above-mentioned display device, the brightness of the display screen of above-mentioned display device and the brightness of above-mentioned surround lighting are proportionate.

10. a display mode adjusting module for display device, comprising:

Saturation degree adjustment unit, adjusts parameter according to one group of input color and saturation degree and obtains one group of saturation degree adjustment output color, and above-mentioned saturation degree adjustment unit also changes the saturation degree of above-mentioned display device according to above-mentioned this group saturation degree adjustment output color;

Color temperature adjusting unit, receiving target colour temperature, and obtain one group of relative colour temperature adjustment parameter according to above-mentioned target colour temperature and the original optical characteristics of above-mentioned display device, and above-mentioned color temperature adjusting unit is also organized relative colour temperature adjustment parameter according to above-mentioned this group saturation degree adjustment output color and above-mentioned this and is obtained one group of colour temperature adjustment output color, to change the colour temperature of above-mentioned display device; And

Brightness adjustment unit, obtains brightness adjustment value according to environmental light brightness, and above-mentioned brightness adjustment unit also changes the brightness of above-mentioned display device according to above-mentioned brightness adjustment value.

11. display mode adjusting modules according to claim 10, is characterized in that, wherein above-mentioned saturation degree adjustment unit obtains above-mentioned saturation degree adjustment parameter according to the form and aspect of above-mentioned this group input color of above-mentioned display device.

12. display mode adjusting modules according to claim 10, is characterized in that, the color saturation adjustment unit of the display adapter that wherein above-mentioned saturation degree adjustment unit comprises above-mentioned display device.

13. display mode adjusting modules according to claim 10, is characterized in that, wherein the saturation degree of above-mentioned this group saturation degree adjustment output color is less than or equal to the saturation degree of above-mentioned this group input color.

14. display mode adjusting modules according to claim 10, is characterized in that, wherein above-mentioned this group input color, above-mentioned saturation degree adjustment parameter and above-mentioned this group saturation degree adjustment output color meet following equation:

$\left[\begin{array}{c}{R}_{\mathrm{sat}}\\ G_{\mathrm{sat}}\\ B_{\mathrm{sat}}\end{array}\right]={\left[M_{\csc }^{-1}\right]}_{3\&times;3}\left[\begin{array}{ccc}1& 0& 0\\ 0& S& 0\\ 0& 0& S\end{array}\right]{\left[M_{\csc }\right]}_{3\&times;3}\left[\begin{array}{c}{R}_{\mathrm{in}}\\ G_{\mathrm{in}}\\ B_{\mathrm{in}}\end{array}\right]$

, wherein, (R _in, G _in, B _in) be above-mentioned this group input color, (R _sat, G _sat, B _sat) be above-mentioned this group saturation degree adjustment output color, [M _csc] be color space translation operation matrix, for color space conversion inverse operation matrix, and S is that above-mentioned saturation degree is adjusted parameter, and wherein S value can be between 0 to 2.

15. display mode adjusting modules according to claim 10, it is characterized in that, wherein above-mentioned color temperature adjusting unit is according to Planckian locus and the colour temperature curve of CIE daylight trajectory generation on CIE1931 chrominance space of reference color temperature, CIE1931 chrominance space, and according to above-mentioned colour temperature curve, produces above-mentioned this and organize relative colour temperature and adjust parameter.

16. display mode adjusting modules according to claim 15, it is characterized in that, wherein above-mentioned color temperature adjusting unit is calculated colour temperature in above-mentioned reference color temperature the first chromaticity coordinates on the Planckian locus of CIE1931 chrominance space, and calculate second chromaticity coordinates of above-mentioned colour temperature on CIE daylight track, also above-mentioned the first chromaticity coordinates and above-mentioned the second chromaticity coordinates are converted on CIE1960 chrominance space, to obtain the first corresponding chromaticity coordinates and the second corresponding chromaticity coordinates, and according to above-mentioned the first corresponding chromaticity coordinates and above-mentioned the second corresponding chromaticity coordinates, produce the colour temperature coordinate of above-mentioned colour temperature.

17. display mode adjusting modules according to claim 16, is characterized in that, wherein above-mentioned colour temperature coordinate meets following equation:

$\begin{array}{cc}(u_{\mathrm{New}},u_{\mathrm{New}})=D(u_D,v_D)+\mathrm{\&alpha;}\frac{\stackrel{\&RightArrow;}{\mathrm{PD}}}{\left|\mathrm{PD}\right|}& \stackrel{\&RightArrow;}{\mathrm{PD}}=(u_D-u_C,v_D-v_C)\\ & \left|\mathrm{PD}\right|=\sqrt{{(u_D-u_C)}^2+{(v_D-v_C)}^2}\end{array}$

, wherein, P (u _c, v _c) be above-mentioned the first corresponding chromaticity coordinates, D (u _d, v _d) be above-mentioned the second corresponding chromaticity coordinates, (u _nEW, v _nEW) be above-mentioned colour temperature coordinate, and α is between 0.001 to 0.005.

18. display mode adjusting modules according to claim 10, is characterized in that, wherein color is exported in above-mentioned this group colour temperature adjustment, above-mentioned this organizes relative colour temperature adjustment parameter and above-mentioned this group saturation degree adjustment output color meets following equation:

$\left[\begin{array}{c}{R}_{\mathrm{out}}\\ G_{\mathrm{out}}\\ B_{\mathrm{out}}\end{array}\right]=\left[\begin{array}{ccc}\mathrm{R\; coeff}& 0& 0\\ 0& \mathrm{G\; coeff}& 0\\ 0& 0& \mathrm{B\; coeff}\end{array}\right]\left[\begin{array}{c}{R}_{\mathrm{sat}}\\ G_{\mathrm{sat}}\\ B_{\mathrm{sat}}\end{array}\right]$

, wherein, (R _out, G _out, B _out) be above-mentioned this group colour temperature adjustment output color, (R _coeff, G _coeff, B _coeff) be that above-mentioned this organized relative colour temperature adjustment parameter, and (R _sat, G _sat, B _sat) be above-mentioned this group saturation degree adjustment output color.

19. display mode adjusting modules according to claim 10, is characterized in that, wherein color is exported in above-mentioned this group colour temperature adjustment, above-mentioned this organizes relative colour temperature adjustment parameter and above-mentioned this group saturation degree adjustment output color meets following equation:

R _out(i)=LUT _R(i)=R _coeff×R _sat(i),wherei=1,2,...，255，

G _out(i)=LUT _G(i)=G _coeff×G _sat(i),wherei=1,2,...,255，

B _out(i)=LUT _B(i)=B _coeff×B _sat(i)，wherei=1,2,...,255，

Wherein, (R _out, G _out, B _out) be above-mentioned this group colour temperature adjustment output color, (R _coeff, G _coeff, B _coeff) for above-mentioned this, organize relative colour temperature and adjust parameter, (R _sat, G _sat, B _sat) be above-mentioned this group saturation degree adjustment output color, and the look-up table in the LUT display adapter that is above-mentioned display device.

20. display mode adjusting modules according to claim 10, is characterized in that, wherein the brightness of the display screen of above-mentioned display device and the brightness of above-mentioned surround lighting are proportionate.