CN101866629B - Color regulation method of color sequence type liquid crystal display - Google Patents

Abstract

The invention provides a color regulation method of a color sequence type liquid crystal display, which is applied to the color sequence type liquid crystal display comprising at least one white light source. The color regulation method comprises the following steps: firstly, converting an original image signal into a bit of target color point in a color degree map in a color space; then, calculating a modified image signal with a white datum according to the original image signal; next, using a matrix group for converting the modified image signal into a bit of main color point in the color degree map; and then, calculating a plurality of sub map field data according to the main color point and the target color point. The main color point falls on the target color point through the sub map field data.

Description

The color adjustment method of color sequence liquid crystal display

Technical field

The invention relates to a kind of image regulating method of display, and particularly relevant for a kind of color adjustment method of color sequence liquid crystal display.

Background technology

Known color sequential liquid crystal display (colors equential liquid crystal display, color sequential LCD) causes image quality to reduce in display frame regular meeting's generation often look segregation phenomenon (colorbreakup).In detail, when known color sequential liquid crystal display when showing the dynamic menu of mobile object, audience's eyes can stare at this object unconsciously and see, and follow the trail of moving of object.

At this moment; Constitute the three primary colors figure field (field) of object image; Just red figure (red field), green figure (green field) and blue figure (blue field); The audience can not be incident upon on the amphiblestroid same position, to such an extent as to can think that the color that as rainbow, separates appears in the edge of this mobile object.

In order to improve the look segregation phenomenon; The someone proposes after showing three primary colors figure field at present; Show white figure field (white field) immediately; Be color sequential liquid crystal display exhibit red figure field, green figure, blue figure and white print field in regular turn circularly, reduce of the harmful effect of look segregation phenomenon image quality.

The module backlight of color sequential liquid crystal display (back light module) can adopt usually three kinds of light emitting diodes (Light Emitting Diode, LED), i.e. ruddiness, green glow and blue light-emitting diode.When show white figure field, all light emitting diode can be simultaneously luminous, to send by red light, green light and white light that blue light was mixed.Yet,, therefore when show white figure field, will cause instantaneous power excessive because all light emitting diodes are simultaneously luminous.

Summary of the invention

The present invention provides a kind of color adjustment method of color sequence liquid crystal display, to reduce the harmful effect of look segregation phenomenon to image quality, reduces instantaneous power simultaneously.

The present invention proposes a kind of color adjustment method of color sequence liquid crystal display; It is applied to one have at least one white light source color sequence liquid crystal display; And this color adjustment method comprises; At first, convert an original image signal in the chromatic diagram (chromaticity diagram) target color point in a color space.Then, according to original image signal, calculate one have a white data the modification signal of video signal.Afterwards, utilize a matrix group, convert a mass-tone point in chromatic diagram into revising signal of video signal.Then, according to mass-tone point and target color point, calculate the figure field data a plurality of times.By these times figure field data, make the mass-tone point drop on target color point.

In an embodiment of the present invention, above-mentioned color space is CIE XYZ color space (CIE XYZ colorspace, wherein CIE is an International Commission on Illumination, the abbreviation of Commission internationale de l ' é clairage).

In an embodiment of the present invention, also comprise the field data according to these times figure, show a plurality of figure (sub-field), wherein these times figure field data belongs to a liquid crystal luma data.Afterwards, according to the mass-tone point, show a master map field (main field).

In an embodiment of the present invention, above-mentioned original image signal has an original red GTG value, an original green GTG value and an original blue GTG value, and white data has a white GTG value.Calculate the method for revising signal of video signal and comprise,, produce white GTG value according to original red GTG value, original green GTG value and original blue GTG value.Then, original red GTG value, original green GTG value and original blue GTG value are all deducted white GTG value.

In an embodiment of the present invention, above-mentioned master map field is a white print field.

In an embodiment of the present invention, the method for above-mentioned generation white GTG value comprises that from original red GTG value, original green GTG value and original blue GTG value, the GTG value minimum with the three is as white GTG value.

In an embodiment of the present invention, above-mentioned modification signal of video signal also has a plurality of primary colors GTG values, and matrix group comprises a ruddiness transition matrix, a green glow transition matrix, a blue light transition matrix and a white light conversion matrix.The method that the modification signal of video signal is converted into mass-tone point comprises; The mathematical expression that sees through

; Calculate the mass-tone point, wherein

is the coordinate of mass-tone point.Mr is the ruddiness transition matrix, and Mg is the green glow transition matrix, and Mb is the blue light transition matrix, and Mw is the white light conversion matrix.Lr, Lg and Lb are these primary colors GTG values, and Lw is white GTG value.Br is a ruddiness backlight data, and Bg is a green glow backlight data, and Bb is a blue light backlight data, and Bw is a white light backlight data.The above-mentioned method that obtains ruddiness transition matrix, green glow transition matrix, blue light transition matrix or white light conversion matrix comprises; Luminous flux at a liquid crystal panel is a maximal value; And only open under a kind of situation of monochromatic source; From a display surface of liquid crystal panel measure one be positioned at color space first color dot, wherein monochromatic source is a red light source, a green light source, a blue-light source or white light source.Luminous flux at liquid crystal panel is a minimum value, and only opens under the situation of monochromatic source, from display surface measure one be positioned at color space second color dot.Afterwards, first color dot and the two coordinate of second color dot are subtracted each other.

In an embodiment of the present invention, these times figure field data is to utilize following mathematical expression and calculate:

$\left[\begin{array}{c}\mathrm{Xt}\\ \mathrm{Yt}\\ \mathrm{Zt}\end{array}\right]=\left[\begin{array}{c}\mathrm{Xm}\\ \mathrm{Ym}\\ \mathrm{Zm}\end{array}\right]+{[\mathrm{Mr},\mathrm{Mg},\mathrm{Mb}]}_{3\×3}*\left[\begin{array}{c}R\\ G\\ B\end{array}\right]$

Wherein is the coordinate of target color point,

be these times figure field data.

In an embodiment of the present invention, above-mentioned white light backlight data is that a white light that sends according to white light source is obtained.The colour temperature of this white light is essentially 6500K, and white light source is a white light emitting diode.

In an embodiment of the present invention, above-mentioned master map field is a colo(u)r-mixture diagram field.

In an embodiment of the present invention, above-mentioned original image signal also has an original red backlight data, original green colored backlights data and an original blue backlight data, and white data also has white backlight data.Calculate the method for revising signal of video signal and also comprise,, produce the white backlight data according to original red backlight data, original green colored backlights data and original blue backlight data.Then, original red backlight data, original green colored backlights data and original blue backlight data are all deducted the white backlight data.

In an embodiment of the present invention, the method for above-mentioned generation white backlight data comprises that from original red backlight data, original green colored backlights data and original blue backlight data, the numerical value minimum with the three is as the white backlight data.

In sum, the present invention utilizes white light source to show the master map field, reduces the harmful effect of look segregation phenomenon to image quality to reach, and can also reduce instantaneous power simultaneously.

For letting the above-mentioned feature and advantage of the present invention can be more obviously understandable, hereinafter is special lifts embodiment, and cooperates appended graphicly, elaborates as follows.

Description of drawings

Fig. 1 is the applied a kind of light source assembly of color adjustment method of the color sequence liquid crystal display of one embodiment of the invention.

Fig. 2 A is the schematic flow sheet of color adjustment method of the color sequence liquid crystal display of one embodiment of the invention.

Fig. 2 B is the chromatic diagram that color adjustment method illustrated according to Fig. 2 A.

Fig. 3 is a method synoptic diagram of obtaining transition matrix.

Embodiment

Fig. 1 is the applied a kind of light source assembly of color adjustment method of the color sequence liquid crystal display of one embodiment of the invention.See also Fig. 1, the color adjustment method of present embodiment can be applied to a color sequence liquid crystal display, and it has at least one light source assembly 100, and light source assembly 100 can be installed in the module backlight of this color sequence liquid crystal display.

Hold above-mentioned; Light source assembly 100 comprises at least one white light source 102, a plurality of monochromatic source 104,106,108 and a wiring board 110; And white light source 102 is assembled on the wiring board 110 with these monochromatic sources 104,106,108, and wherein white light source 102 all can be light emitting diode with monochromatic source 104,106,108.

In detail; White light source 102 can be a white light emitting diode; And monochromatic source 104,106 and 108 can be respectively red light-emitting diode, green light LED and blue light-emitting diode; Wherein monochromatic source 104 is used for exhibit red figure field, and monochromatic source 106 is used for showing green figure, and monochromatic source 108 is used for showing blue figure.White light source 102 is used for show white figure field, and the monochromatic source 104-108 that perhaps can arrange in pairs or groups wherein shows one of at least the colo(u)r-mixture diagram field.

In addition, the white light that white light source 102 sent is present common white light emitting diode, and the white light that it sent also is 6500K usually.Therefore, the white light that white light source 102 is sent, its color can somewhat inclined to one side indigo plant.

In the present embodiment, white light source 102 can be light-emitting diode chip for backlight unit (LED chip) with these monochromatic sources 104,106,108, and wiring board 110 shown in Figure 1 is a kind of chip packaging carrying plate (chippackage carrier).Therefore, light source assembly 100 can be a kind of chip packing-body (chip package) that white light source 102 and monochromatic source 104,106,108 are integrated into one, and for example light source assembly 100 is the chip packing-body of four-core sheet unification (4 in 1).

But; What must explain is that in the embodiment that other does not illustrate, white light source 102 all can be a chip packing-body with these monochromatic sources 104,106,108; And wiring board 110 can be used for the assembling chip packaging body printed-wiring board (PWB) (Printed Circuit Board, PCB).

Fig. 2 A is the schematic flow sheet of color adjustment method of the color sequence liquid crystal display of one embodiment of the invention, and Fig. 2 B is the chromatic diagram that color adjustment method illustrated according to Fig. 2 A.See also Fig. 2 A and Fig. 2 B, the color adjustment method about the color sequence liquid crystal display of present embodiment at first, carries out step S202, just converts an original image signal into a target color point P1.

In detail, target color point P1 position is in a colourity Figure 30 0 in a color space, and shown in Fig. 2 B, wherein color space for example is a CIE XYZ color space, and the chromatic diagram 300 shown in Fig. 2 B is CIE 1931 chromatic diagrams.But, in the embodiment that other does not illustrate, chromatic diagram 300 also can be CIE 1960 chromatic diagrams or CIE 1976 chromatic diagrams.

Original image signal can be used for controlling the liquid crystal GTG of display panels (LCD panel).Original image signal has an original red GTG value, an original green GTG value and an original blue GTG value.Original red GTG value, original green GTG value and original blue GTG value three can belong to six 64 look GTGs or eight 256 look GTGs, and the three can be the GTG value after the normalization (normalized).

Then, carry out step S204,, calculate one and revise signal of video signal promptly according to original image signal.This revises signal of video signal and has a white data and a plurality of primary colors GTG value, and wherein white data can have white GTG value, and these primary colors GTG values are respectively red GTG value, green GTG value and blue GTG value.

Calculating the method for revising signal of video signal has multiplely, and in the present embodiment, revising signal of video signal is to see through following steps to calculate.At first, according to the original red GTG value of original image signal, original green GTG value and original blue GTG value, produce above-mentioned white GTG value.

About producing the method for white GTG value, in the present embodiment, be from original red GTG value, original green GTG value and original blue GTG value, the GTG value minimum with the three is as white GTG value.Then, original red GTG value, original green GTG value and original blue GTG value are all deducted white GTG value, to calculate these primary colors GTG values, just red GTG value, green GTG value and blue GTG value.So, calculate the modification signal of video signal.

More than more specifying, calculating the method for revising signal of video signal, below will be that example illustrates with the standard of eight 256 look GTGs.Suppose that the original red GTG value that an original image signal is had is 200, original green GTG value is 150, and original blue GTG value is 50, because original blue GTG value is the minimum GTG value of three, therefore, white GTG value is set at 50.

Then; Original red GTG value, original green GTG value and original blue GTG value are all deducted white GTG value; To obtain red GTG value, green GTG value and blue GTG value; Wherein red GTG value is 150 (because 200-50=150), and green GTG value is 100 (because 150-50=100), and blue GTG value is 0 (because 50-50=0).So, revising signal of video signal is able to calculate.

After carrying out step S204; Then carry out step S206; Promptly utilize a matrix group; To revise signal of video signal and convert a mass-tone point P2 into, wherein mass-tone point P2 position is in chromatic diagram 300, and matrix group comprises a ruddiness transition matrix, a green glow transition matrix, a blue light transition matrix and a white light conversion matrix.

The method that the modification signal of video signal is converted into mass-tone point P2 can may further comprise the steps, and sees through following mathematical expression (1) and calculates mass-tone point P2:

$\left[\begin{array}{c}\mathrm{Xm}\\ \mathrm{Ym}\\ \mathrm{Zm}\end{array}\right]=\mathrm{Mr}\×\mathrm{Lr}\×\mathrm{Br}+\mathrm{Mg}\×\mathrm{Lg}\×\mathrm{Bg}+\mathrm{Mb}\×\mathrm{Lb}\×\mathrm{Bb}+\mathrm{Mw}\×\mathrm{Lw}\×\mathrm{Bw}...\left(1\right)$

Wherein

is the coordinate of mass-tone point P2; Be that mass-tone point P2 is projected as an Xm on the X of chromatic diagram 300 axle, on the Y axle, be projected as a Ym place.As for Zm, because CIE 1931 chromatic diagrams are when Zm is certain value, the X-Y plane of in CIE XYZ color space, being got, so the chromatic diagram 300 of Fig. 2 B does not demonstrate Zm.

Mr, Mg, Mb and Mw represent matrix group, and wherein Mr is the ruddiness transition matrix, and Mg is the green glow transition matrix, and Mb is the blue light transition matrix, and Mw is the white light conversion matrix.Signal of video signal is revised in Lr, Lg, Lb and Lw representative, and wherein Lw is the white GTG value of white data, and Lr, Lg and Lb are these primary colors GTG values of modification signal of video signal, and Lr is red GTG value, and Lg is green GTG value, and Lb is blue GTG value.

Please consult Fig. 1 once more, Br is a ruddiness backlight data, and Bg is a green glow backlight data, and Bb is a blue light backlight data, and Bw is a white light backlight data.Br, Bg, Bb and Bw represent the luminous signal of light source assembly 100, and wherein the white light backlight data is to obtain according to the white light that white light source 102 is sent, and the colour temperature of this white light can be 6500K in fact.Ruddiness backlight data, green glow backlight data and blue light backlight data are respectively to obtain according to the coloured light that monochromatic source 104,106 and 108 is sent.

In addition, in the present embodiment, can utilize light regulating technology (dimming) to adjust GTG value Lr, Lg, Lb, Lw and backlight data Br, Bg, Bb, Bw.In detail, be example with red GTG value Lr and red backlight data Br, (under the condition of the numerical value of Lr * Br), can change Lr and Br not changing.That is to say that when the numerical value of Lr was heightened, the numerical value of Br was turned down.Otherwise when the numerical value of Lr was turned down, the numerical value of Br was heightened.

In like manner, (under the condition of the numerical value of Lg * Bg), can change Lg and Bg not changing; (under the condition of the numerical value of Lb * Bb), can not change Lb and Bb not changing; And (under the condition of the numerical value of Lw * Bw), can not change Lw and Bw not changing.

The method that obtains ruddiness transition matrix Mr, green glow transition matrix Mg, blue light transition matrix Mb or white light conversion matrix M w in the mathematical expression (1) can adopt following steps, and sees also Fig. 1 and Fig. 3.

The applied color sequence liquid crystal display of present embodiment also has a display panels 200 (as shown in Figure 3); And in the method that obtains ruddiness transition matrix Mr, green glow transition matrix Mg, blue light transition matrix Mb or white light conversion matrix M w; At first; The luminous flux of display panels 200 is adjusted into maximal value, and only opens a kind of monochromatic source, other monochromatic source is closed.That is to say, only open the monochromatic source of certain color.

The monochromatic source that is unlocked can be monochromatic source 104, monochromatic source 106, monochromatic source 108 or the white light source 102 among Fig. 1, and wherein monochromatic source 104 is a red light source, and monochromatic source 106 is a green light source, and monochromatic source 108 is a blue-light source.In addition, be in the peaked step at the luminous flux of adjusting display panels 200, be the Liquid Crystal Molecules Alignment of utilizing in the control display panels 200, let display panels 200 have the highest light transmittance.

Luminous flux at display panels 200 is a maximal value, and only opens under a kind of situation of monochromatic source, for example only open white light source 102 or monochromatic source 104-108 one of them, measure one first color dot from a display surface 202 of display panels 200.First color dot is positioned at color space, and wherein this color space for example is a CIE XYZ color space, and first color dot can and record through instrument 400, and instrument 400 for example is a colorimeter.

Then, the luminous flux of display panels 200 is adjusted into minimum value, and only opens aforementioned monochromatic source of having opened.Luminous flux at adjustment display panels 200 is in the step of minimum value, also is the Liquid Crystal Molecules Alignment of utilizing in the control display panels 200, makes display panels 200 have minimum light transmittance.In theory, display surface 202 at this time should be to present black in theory, but because the situation of light leak can take place display panels 200 unavoidably, therefore in fact the represented color of second color dot can't be a black.

Luminous flux at display panels 200 is a minimum value, and only opens under the situation of aforementioned monochromatic source of having opened, from display surface 202 measure one be positioned at color space second color dot.Afterwards, first color dot that records and the two coordinate of second color dot are subtracted each other.So, obtain ruddiness transition matrix Mr, green glow transition matrix Mg, blue light transition matrix Mb and white light conversion matrix M w.

In order to obtain the method for ruddiness transition matrix Mr, green glow transition matrix Mg, blue light transition matrix Mb or white light conversion matrix M w more than more specifying, will be example below, and cooperate Fig. 1 and Fig. 3 to be illustrated with green glow transition matrix Mg.

At first, the luminous flux of display panels 200 is adjusted into maximal value, and only opens green light source, promptly monochromatic source 106, and monochromatic source 104,108 and white light source 102 are then closed.Luminous flux at display panels 200 is a maximal value, and only opens under the situation of green light source, from display surface 202 measure first color dot that is positioned at color space (Xg1, Yg1, Zg1).

Then, the luminous flux of display panels 200 is adjusted into minimum value, and only opens green light source, still close monochromatic source 104,108 and white light source 102.Luminous flux at display panels 200 is a minimum value, and only opens under the situation of green light source, from display surface 202 measure second color dot that is positioned at color space (Xg2, Yg2, Zg2).

Afterwards, (Zg1) (Zg2) the two coordinate subtracts each other for Xg2, Yg2 with second color dot for Xg1, Yg1 with first color dot that records.Just Xg1 and Xg2 are subtracted each other, Yg1 and Yg2 subtract each other, and Zg1 and Zg2 subtract each other, and then obtain green glow transition matrix Mg as follows:

$\mathrm{Mg}=\left[\begin{array}{c}\mathrm{Xg}1-\mathrm{Xg}2\\ \mathrm{Yg}1-\mathrm{Yg}2\\ \mathrm{Zg}1-\mathrm{Zg}2\end{array}\right]$

In like manner, by that analogy,, obtain ruddiness transition matrix Mr, blue light transition matrix Mb and white light conversion matrix M w according to the adquisitiones of above green glow transition matrix Mg.

Based on above-mentioned, the situation of light leak all can take place in display panels 200 unavoidably, and this can make some difference to colors of image, to such an extent as to the coordinate of mass-tone point P2 maybe distortion.Yet, see through green glow transition matrix Mg, ruddiness transition matrix Mr, blue light transition matrix Mb and white light conversion matrix M w, can improve the correctness of mass-tone point P2.

See also Fig. 2 A and Fig. 2 B, after carrying out step S206, execution in step S208 promptly according to mass-tone point P2 and target color point P1, calculates the figure field data a plurality of times.These times figure field data is to be used for making mass-tone point P2 to drop on target color point P1.That is to say; These times figure field data is to be used for revising mass-tone point P2; Let color sequence liquid crystal display can utilize white light source 102 (seeing also Fig. 1) to make the color of pixel (pixel) display-object color dot P1 representative, and then show correct image according to original image signal.

In the present embodiment, these times figure field data belongs to the liquid crystal luma data, and can be respectively red figure field data, green figure field data and blue figure field data.In detail, the liquid crystal GTG of these times figure field data may command display panels is revised mass-tone point P2.Certainly, in other embodiments, also can control the luminous signal of liquid crystal GTG and light source assembly 100 simultaneously, revise mass-tone point P2.

The method of these times figure field data can utilize following mathematical expression (2) to calculate:

$\left[\begin{array}{c}\mathrm{Xt}\\ \mathrm{Yt}\\ \mathrm{Zt}\end{array}\right]=\left[\begin{array}{c}\mathrm{Xm}\\ \mathrm{Ym}\\ \mathrm{Zm}\end{array}\right]+{[\mathrm{Mr},\mathrm{Mg},\mathrm{Mb}]}_{3\×3}*\left[\begin{array}{c}R\\ G\\ B\end{array}\right]$ .................................(2)

is the coordinate of target color point P1;

is these times figure field data; Wherein R is red figure field data; G is green figure field data, and B is blue figure field data.

Mr, Mg and Mb are known, therefore can utilize simple linear algebra to calculate

Afterwards; Can execution in step S210; Just show a master map field and a plurality of figure fields; Wherein the master map field is to show according to mass-tone point P2 (being coordinate ), and these times figure field is to show according to these times figure field data.The master map field can be white print field or colo(u)r-mixture diagram field, and these times figure field comprises a red Tu Chang, a green figure field and a blue figure.

When the master map field is the colo(u)r-mixture diagram field; White light source 102 among Fig. 1 not only can send outside the white light; Monochromatic source 104,106 and 108 wherein also can follow one of at least white light source 102 simultaneously luminous together, so the color of colo(u)r-mixture diagram field can be yellow, purple or orange etc.

The color of colo(u)r-mixture diagram field can decide according to original image signal, for example original image signal the image that will appear be the seashore of sky blue and the scenery of sky, the color of colo(u)r-mixture diagram field then adopts cyan (cyan).So, also can reduce of the harmful effect of look segregation phenomenon to image quality.

In addition, original image signal can also have an original red backlight data, original green colored backlights data and an original blue backlight data, and the white data of modification signal of video signal can have more white backlight data.When the master map field was the colo(u)r-mixture diagram field, the method for the modification signal of video signal of present embodiment not only can produce white GTG value, also can produce the white backlight data simultaneously.

In detail, the method for modification signal of video signal can be further comprising the steps of.According to original red backlight data, original green colored backlights data and original blue backlight data, produce the white backlight data.About the method for white backlight data, can be from original red backlight data, original green colored backlights data and original blue backlight data, with three's numerical value reckling as the white backlight data.

Then, original red backlight data, original green colored backlights data and original blue backlight data are all deducted the white backlight data.So, calculate the backlight data of revising signal of video signal, it comprises red backlight data, green colored backlights data, blue backlight data and white backlight data.

In sum, the present invention utilizes white light source to adopt to show the master map field that can be white print field or colo(u)r-mixture diagram field, and this white light source can be white light emitting diode.Compared to the method that known use ruddiness, green glow and blue light-emitting diode come show white figure field, the present invention not only can reduce the harmful effect of look segregation phenomenon to image quality, can also reduce instantaneous power simultaneously.So, the present invention can reduce the consumed power of color sequential liquid crystal display, and increases the running time of color sequential liquid crystal display.

Secondly, see through time figure field data, the present invention can make the mass-tone point drop on target color point, to show correct image color.Even if the color of the white light that white light source sent is other color (the for example colour temperature of 6500K) partially, the present invention still can verily show original image signal the image color that will appear.This shows that the present invention can not only reduce the harmful effect of look segregation phenomenon to image quality, and reduce instantaneous power, but also can verily show original image signal the image color that will appear.

Though the present invention with previous embodiment openly as above, so it is not in order to limiting the present invention, anyly has the knack of alike art, is not breaking away from the spirit and scope of the present invention, and institute does to change with the equivalence of retouching and replaces, and still is in the claim protection domain of the present invention.

Claims (12)

1. the color adjustment method of a color sequence liquid crystal display, be applied to one have at least one white light source color sequence liquid crystal display, it is characterized in that this color adjustment method comprises:

Convert an original image signal into a target color point in a chromatic diagram in a color space;

According to this original image signal, calculate one have a white data the modification signal of video signal;

Utilize a matrix group, convert this modification signal of video signal into a mass-tone point in this chromatic diagram;

According to this mass-tone point and this target color point, calculate the figure field data a plurality of times, wherein those times figure field data is with so that this mass-tone point drops on this target color point;

According to those times figure field data, show the figure field a plurality of times; And

According to this mass-tone point, show a master map field.

2. the color adjustment method of color sequence liquid crystal display as claimed in claim 1 is characterized in that, this color space is a CIE XYZ color space.

3. the color adjustment method of color sequence liquid crystal display as claimed in claim 1 is characterized in that, those times figure field data belongs to a liquid crystal luma data.

4. the color adjustment method of color sequence liquid crystal display as claimed in claim 3; It is characterized in that; This original image signal has an original red GTG value, an original green GTG value and an original blue GTG value; And this white data has a white GTG value, and the method for calculating this modification signal of video signal comprises:

According to this original red GTG value, this original green GTG value and this original blue GTG value, generation should white GTG value; And

Should original red GTG value, this original green GTG value and this original blue GTG value all deduct this white GTG value.

5. the color adjustment method of color sequence liquid crystal display as claimed in claim 4 is characterized in that, this master map field is a white print field.

6. the color adjustment method of color sequence liquid crystal display as claimed in claim 4 is characterized in that, the method that produces this white GTG value comprises:

From this original red GTG value, this original green GTG value and this original blue GTG value, the GTG value minimum with the three is as this white GTG value.

7. the color adjustment method of color sequence liquid crystal display as claimed in claim 4; It is characterized in that; This modification signal of video signal also has a plurality of primary colors GTG values; And this matrix group comprises a ruddiness transition matrix, a green glow transition matrix, a blue light transition matrix and a white light conversion matrix, and the method that converts this modification signal of video signal into this mass-tone point comprises:

See through $\left[\begin{array}{c}\mathrm{Xm}\\ \mathrm{Ym}\\ \mathrm{Zm}\end{array}\right]=\mathrm{Mr}\×\mathrm{Lr}\×\mathrm{Br}+\mathrm{Mg}\×\mathrm{Lg}\×\mathrm{Bg}+\mathrm{Mb}\×\mathrm{Lb}\×\mathrm{Bb}+\mathrm{Mw}\×\mathrm{Lw}\×\mathrm{Bw}$ Mathematical expression, calculate this mass-tone point, wherein $\left[\begin{array}{c}\mathrm{Xm}\\ \mathrm{Ym}\\ \mathrm{Zm}\end{array}\right]$ Coordinate for this mass-tone point;

Mr is this ruddiness transition matrix, and Mg is the green glow transition matrix, and Mb is this blue light transition matrix, and Mw is this white light conversion matrix;

Lr, Lg and Lb are those primary colors GTG values, and Lw is this white GTG value; And

Br is a ruddiness backlight data, and Bg is a green glow backlight data, and Bb is a blue light backlight data, and Bw is a white light backlight data;

The method that wherein obtains this ruddiness transition matrix, this green glow transition matrix, this blue light transition matrix or this white light conversion matrix comprises:

Luminous flux at a liquid crystal panel is a maximal value; And only open under a kind of situation of monochromatic source; From a display surface of this liquid crystal panel measure one be positioned at this color space first color dot, wherein this monochromatic source is a red light source, a green light source, a blue-light source or this white light source;

Luminous flux at this liquid crystal panel is a minimum value, and only opens under the situation of this monochromatic source, from this display surface measure one be positioned at this color space second color dot; And

This first color dot and this two coordinate of second color dot are subtracted each other.

8. the color adjustment method of color sequence liquid crystal display as claimed in claim 7 is characterized in that, those times figure field data is to utilize following mathematical expression and calculate:

$\left[\begin{array}{c}\mathrm{Xt}\\ \mathrm{Yt}\\ \mathrm{Zt}\end{array}\right]=\left[\begin{array}{c}\mathrm{Xm}\\ \mathrm{Ym}\\ \mathrm{Zm}\end{array}\right]+{[\mathrm{Mr},\mathrm{Mg},\mathrm{Mb}]}_{3\×3}*\left[\begin{array}{c}R\\ G\\ B\end{array}\right]$

Wherein $\left[\begin{array}{c}\mathrm{Xt}\\ \mathrm{Yt}\\ \mathrm{Zt}\end{array}\right]$ Be the coordinate of this target color point, $\left[\begin{array}{c}R\\ G\\ B\end{array}\right]$ Be those times figure field data.

9. the color adjustment method of color sequence liquid crystal display as claimed in claim 7; It is characterized in that; This white light backlight data is that a white light that sends according to this white light source is obtained, and the colour temperature of this white light is essentially 6500K, and this white light source is a white light emitting diode.

10. the color adjustment method of color sequence liquid crystal display as claimed in claim 4 is characterized in that, this master map field is a colo(u)r-mixture diagram field.

11. the color adjustment method of color sequence liquid crystal display as claimed in claim 10; It is characterized in that; This original image signal also has an original red backlight data, original green colored backlights data and an original blue backlight data; And this white data also has white backlight data, and the method for calculating this modification signal of video signal also comprises:

According to this original red backlight data, these original green colored backlights data and this original blue backlight data, produce this white backlight data; And

Should original red backlight data, these original green colored backlights data and this original blue backlight data all deduct this white backlight data.

12. the color adjustment method of color sequence liquid crystal display as claimed in claim 11 is characterized in that, the method that produces these white backlight data comprises:

From this original red backlight data, these original green colored backlights data and this original blue backlight data, the numerical value minimum with the three is as these white backlight data.

Images