CN105280156A

CN105280156A - Method and apparatus for obtaining maximum common color gamut of display screen

Info

Publication number: CN105280156A
Application number: CN201510822639.2A
Authority: CN
Inventors: 黄早珊
Original assignee: Vtron Technologies Ltd
Current assignee: Vtron Technologies Ltd
Priority date: 2015-11-23
Filing date: 2015-11-23
Publication date: 2016-01-27
Anticipated expiration: 2035-11-23
Also published as: CN105280156B

Abstract

An embodiment of the invention discloses a method and an apparatus for obtaining a maximum common color gamut of a display screen, which are used to obtain the maximum common color gamut of a display screen with multiple fundamental colors and to improve the display consistency of the display screen. The method for obtaining a maximum common color gamut of a display screen comprises: determining the color number of fundamental colors in a plurality of color gamuts; performing fundamental color classification of neighboring colors for the all color points in the all color gamuts based on each color; determining the all color points which belong to the same fundamental color classification but do not belong to the same color gamut; based on color coordinates corresponding to the color points, determining common color points which meet the requirement of being within the each color gamut, the color coordinates corresponding to the common color points being a boundary color coordinate of at least one color gamut; and determining the maximum common color gamut based on the color coordinates corresponding to the all common color points.

Description

A kind of method and device obtaining the maximum common color gamut of display screen

Technical field

The present invention relates to technical field of image processing, particularly relate to a kind of method and the device that obtain the maximum common color gamut of display screen.

Background technology

Display (display) is also referred to as monitor usually.Display is the I/O equipment belonging to computer, i.e. input-output device.It a kind ofly certain e-file is shown to show tools screen reflexing to again human eye by specific transmission equipment.

Present display product major part is three primary colours display screens, i.e. RGB (RGB) three primary colours, and through long-term development, the display screen of three primary colours is very ripe.But the display of three primary colours also fails to reduce truly natural color, can not meet the demands in the display details of some high-end fields.In order to make colour gamut broader, the method increasing number of primary colors is adopted to improve the colour gamut of display screen at present, such as the display screen of four primary (R+G+B+Y, red, green, blue and yellow), five primary colours (R+G+B+Y+C, red, green, blue and yellow is blue or green).So, display actual effect seems finer and smoother, watches more comfortable.All there is the problem of lack of homogeneity in present display splicing technology, for this reason, needs to carry out consistency of colour adjustment to whole wall, make it consistance better after splicing.Especially for the display screen of multiple bases, colour consistency regulates to be needed to ask maximum colour gamut, the correction of such as LED display through a step.

Therefore, the display screen how asked for regard to multiple bases carries out asking for of maximum common color gamut becomes those skilled in the art's technical matters urgently to be resolved hurrily.

Summary of the invention

Embodiments provide a kind of method and the device that obtain the maximum common color gamut of display screen, ask for for the maximum common color gamut realizing the display screen of multiple bases, thus improve the display consistency of display screen.

A kind of method obtaining the maximum common color gamut of display screen that the embodiment of the present invention provides, comprising:

Determine the number of colors of the primary colours in a plurality of colour gamut, and carry out the primary colours classification of adjacent color according to all color dots in all described colour gamuts of each Color pair;

To belonging to same described primary colours classification, and all described color dot do not belonged in same described colour gamut is determined;

The chromaticity coordinates corresponding according to described color dot is determined to meet the public color dot not exceeding the condition of each described colour gamut, the border chromaticity coordinates that the chromaticity coordinates that described public color dot is corresponding is colour gamut described at least one;

The described chromaticity coordinates corresponding according to all described public color dots determines maximum common color gamut.

Alternatively, corresponding according to described color dot chromaticity coordinates determines that meeting the public color dot not exceeding the condition of each described colour gamut specifically comprises:

Successively described primary colours classification is traveled through, successively condition judgment is carried out to the chromaticity coordinates of all described color dot in the described primary colours classification of current traversal, if have the described color dot meeting and do not exceed the described condition of each described colour gamut, then described color dot is a described public color dot, and the described primary colours classification of the next one is traveled through, until the described color dot of all described primary colours classification and correspondence thereof has traveled through, all described public color dots are determined.

Alternatively, successively described primary colours classification is traveled through, successively condition judgment is carried out to the chromaticity coordinates of all described color dot in the described primary colours classification of current traversal, if have the described color dot meeting and do not exceed the described condition of each described colour gamut, then described color dot is a described public color dot, and the described primary colours classification of the next one is traveled through, until the described color dot of all described primary colours classification and correspondence thereof has traveled through, determine that all described public color dots specifically comprise:

S1: be j=1, k=j by default settings, color dot S=C _{j, i}, described j and described k is the colour gamut variate-value that described color dot is corresponding, and described i is primary colours classification value, described C _{j, i}for the i-th primary colours classification color dot of colour gamut described in jth;

S2: make the color gamut value r=1 that described color dot is corresponding, carries out r and whether is not equal to j, and be not equal to the judgement of k, and whether if so, then corresponding to the described color dot S of current traversal chromaticity coordinates does not exceed triangle C corresponding to colour gamut described in r _{r, i+1}c _r,ic _{r, i-1}judgement, if described color dot S exceeds triangle C corresponding to colour gamut described in r _{r, i+1}c _r,ic _{r, i-1}, then preset colour gamut limit intersection point determining step is performed, if described color dot S does not exceed triangle C corresponding to colour gamut described in r _{r, i+1}c _r,ic _{r, i-1}, then whether corresponding to the described color dot S of current traversal chromaticity coordinates does not exceed triangle C corresponding to colour gamut described in r+1 _{r+1, i+1}c _{r+1, i}c _{r+1, i-1}judgement, if the described color dot S of current traversal exceeds triangle C corresponding to colour gamut described in r+1 _{r+1, i+1}c _r+1, _ic _{r+1, i-1}, then described preset colour gamut limit intersection point determining step is performed.Until traversing triangle corresponding to all described colour gamuts completes, and the described color dot S of current traversal does not exceed triangle C corresponding to colour gamut described in r+1 _{r+1, i+1}c _{r+1, i}c _{r+1, i-1}, then the described color dot S of current traversal is a described public color dot.

Alternatively, described preset colour gamut limit intersection point determining step specifically comprises:

Judge whether k equals j, if k=j, then judge with a C _{j, i}for the limit C on summit _{j, i}c _{j, i-1}with with a C _{r, i}for the limit C on summit _{r, i}c _{r, i+1}or with a C _{j, i}for the limit C on summit _{j, i}c _{j, i+1}with with a C _{r, i}for the limit C on summit _{r, i}c _{r, i-1}whether there is intersection point J1 or intersection point J2;

If described limit C _{j, i}c _{j, i-1}with described limit C _{r, i}c _{r, i+1}there is described intersection point J1, then determine that color dot S is described intersection point J1, and calculate the first chromaticity coordinates corresponding to described intersection point J1, k=r is set, and again perform step S2;

If described limit C _{j, i}c _{j, i+1}with described limit C _{r, i}c _{r, i-1}there is described intersection point J2, then determine that color dot S is described intersection point J2, calculate the second chromaticity coordinates that described intersection point J2 is corresponding, k=j is set, j=r, and again perform step S2;

If described limit C _{j, i}c _{j, i-1}with described limit C _r,ic _{r, i+1}and described limit C _j,ic _{j, i+1}with described limit C _{r, i}c _r, _i-1all there is not intersection point, then determine described color dot S=C _{r, i}, j=r is set, k=j, and again performs step S2.

Alternatively, if judge k ≠ j, then judge with a C _{j, i}for the limit C on summit _{j, i}c _{j, i-1}with with a C _{r, i}for the limit C on summit _{r, i}c _{r, i+1}whether there is intersection point J3;

If described limit C _{j, i}c _{j, i-1}with described limit C _{r, i}c _{r, i+1}there is intersection point J3, then corresponding according to the described intersection point J3 calculated trichromatic coordinate judges that whether described intersection point J3 is at line segment C _{j, i}on the extended line of S, if described intersection point J3 is at line segment C _{j, i}on the extended line of S, then determine that described color dot S is described intersection point J3, k=r is set, and again perform step S2, if described intersection point J3 is at line segment C _{j, i}on S, then calculate with a C _k, _ifor the described limit C on summit _{k, i}c _{k, i+1}with with a C _{r, i}for the limit C on summit _{r, i}c _{r, i-1}intersection point J4, described color dot S is described intersection point J4, arranges j=r, and again perform step S2;

If described limit C _{j, i}c _{j, i-1}with described limit C _{r, i}c _{r, i+1}there is not intersection point J3, then judge with a C _{k, i}for the limit C on summit _{k, i}c _{k, i+1}with with a C _{r, i}for the limit C on summit _{r, i}c _{r, i-1}whether there is intersection point J4, if there is described intersection point J4, then calculate with a C _{k, i}for the limit C on summit _{k, i}c _{k, i+1}with with a C _{r, i}for the limit C on summit _{r, i}c _{r, i-1}intersection point J4, described color dot S is described intersection point J4, arranges j=r, and again perform step S2;

If there is not described intersection point J4, then determine that described color dot S is described some C _{r, i}, j=r is set, k=j, and again performs step S2.

A kind of device obtaining the maximum common color gamut of display screen that the embodiment of the present invention provides, comprising:

Taxon, for determining the number of colors of the primary colours in a plurality of colour gamut, and carries out the primary colours classification of adjacent color according to all color dots in all described colour gamuts of each Color pair;

Gamut determination unit, for classifying to belonging to same described primary colours, and all described color dot do not belonged in same described colour gamut is determined;

Public color dot determining unit, determines for the chromaticity coordinates corresponding according to described color dot to meet the public color dot not exceeding the condition of each described colour gamut, the border chromaticity coordinates that the chromaticity coordinates that described public color dot is corresponding is colour gamut described at least one;

Maximum common color gamut determining unit, determines maximum common color gamut for the described chromaticity coordinates corresponding according to all described public color dots.

Alternatively, public color dot determining unit, specifically for traveling through described primary colours classification successively, successively condition judgment is carried out to the chromaticity coordinates of all described color dot in the described primary colours classification of current traversal, if have the described color dot meeting and do not exceed the described condition of each described colour gamut, then described color dot is a described public color dot, and the described primary colours classification of the next one is traveled through, until the described color dot of all described primary colours classification and correspondence thereof has traveled through, all described public color dots are determined.

Alternatively, public color dot determining unit specifically comprises:

Preset subelement, for being j=1, k=j by default settings, color dot S=C _{j, i}, described j and described k is the colour gamut variate-value that described color dot is corresponding, and described i is primary colours classification value, described C _{j, i}for the i-th primary colours classification color dot of colour gamut described in jth;

First judgment sub-unit, for making the color gamut value r=1 that described color dot is corresponding, carrying out r and whether being not equal to j, and being not equal to the judgement of k, if so, then triggering the second judgment sub-unit;

Described second judgment sub-unit, whether the chromaticity coordinates corresponding for the described color dot S to current traversal does not exceed triangle C corresponding to colour gamut described in r _{r, i+1}c _r,ic _{r, i-1}judgement, if described color dot S exceeds triangle C corresponding to colour gamut described in r _{r, i+1}c _r,ic _{r, i-1}, then preset colour gamut limit intersection point judgment sub-unit is triggered, if described color dot S does not exceed triangle C corresponding to colour gamut described in r _{r, i+1}c _r,ic _{r, i-1}, then the 3rd judgment sub-unit is triggered;

Described 3rd judgment sub-unit, whether the chromaticity coordinates corresponding for the described color dot S to current traversal does not exceed triangle C corresponding to colour gamut described in r+1 _{r+1, i+1}c _{r+1, i}c _{r+1, i-1}judgement, if the described color dot S of current traversal exceeds triangle C corresponding to colour gamut described in r+1 _{r+1, i+1}c _{r+1, i}c _{r+1, i-1}, then trigger described preset colour gamut limit intersection point judgment sub-unit, until described traversing triangle corresponding to all described colour gamuts completes, and the described color dot S of current traversal does not exceed triangle C corresponding to colour gamut described in r+1 _{r+1, i+1}c _r+1, _ic _{r+1, i-1}, then the described color dot S of current traversal is a described public color dot.

Alternatively, preset colour gamut limit intersection point judgment sub-unit specifically comprises:

First judge module, for judging whether k equals j, if k=j, then triggers the second judge module, if k ≠ j, then triggers the 3rd judge module;

Described second judge module, for judging with a C _{j, i}for the limit C on summit _{j, i}c _{j, i-1}with with a C _{r, i}for the limit C on summit _{r, i}c _{r, i+1}or with a C _{j, i}for the limit C on summit _{j, i}c _{j, i+1}with with a C _{r, i}for the limit C on summit _{r, i}c _{r, i-1}whether there is intersection point J1 or intersection point J2, if described limit C _{j, i}c _{j, i-1}with described limit C _{r, i}c _{r, i+1}there is described intersection point J1, then trigger the first determination module, if described limit C _{j, i}c _{j, i+1}with described limit C _{r, i}c _r, _i-1there is intersection point J2, then trigger the second determination module, if described limit C _{j, i}c _{j, i-1}with described limit C _{r, i}c _{r, i+1}and described limit C _{j, i}c _{j, i+1}with described limit C _{r, i}c _{r, i-1}all there is not intersection point, then trigger the 3rd determination module;

Described first determination module, for determining that color dot S is described intersection point J1, and calculating the first chromaticity coordinates corresponding to described intersection point J1, arranging k=r, and triggering described first judgment sub-unit;

Described second determination module, for determining that color dot S is described intersection point J2, and calculating the second chromaticity coordinates corresponding to described intersection point J2, arranging k=j, j=r, and triggering described first judgment sub-unit;

Described 3rd determination module, for determining described color dot S=C _{r, i}, j=r is set, k=j, and triggers described first judgment sub-unit.

Alternatively, the 3rd judge module, specifically for judging with a C _{j, i}for the limit C on summit _{j, i}c _{j, i-1}with with a C _{r, i}for the limit C on summit _{r, i}c _{r, i+1}whether there is intersection point J3, if described limit C _{j, i}c _{j, i-1}with described limit C _{r, i}c _{r, i+1}there is intersection point J3, then trigger the 4th judge module, if described limit C _{j, i}c _{j, i-1}with described limit C _r, _ic _{r, i+1}there is not intersection point J3, then trigger the 5th judge module;

For the trichromatic coordinate corresponding according to the described intersection point J3 calculated, described 4th judge module, judges that whether described intersection point J3 is at line segment C _{j, i}on the extended line of S, if described intersection point J3 is at line segment C _{j, i}on the extended line of S, then trigger the 4th determination module, if described intersection point J3 is at line segment C _{j, i}on S, then calculate with a C _{k, i}for the limit C on summit _{k, i}c _{k, i+1}with with a C _{r, i}for the limit C on summit _{r, i}c _{r, i-1}intersection point J4, described color dot S is described intersection point J4, arranges j=r, and triggers described first judgment sub-unit;

Described 4th determination module, for determining that described color dot S is described intersection point J3, arranges k=r, and triggers described first judgment sub-unit;

Described 5th judge module, for judging with a C _{k, i}for the limit C on summit _{k, i}c _{k, i+1}with with a C _{r, i}for the limit C on summit _{r, i}c _{r, i-1}whether there is intersection point J4, if there is described intersection point J4, then calculate with a C _{k, i}for the limit C on summit _{k, i}c _{k, i+1}with with a C _{r, i}for the limit C on summit _{r, i}c _{r, i-1}intersection point J4, described color dot S is described intersection point J4, arranges j=r, and triggers described first judgment sub-unit, if there is not described intersection point J4, then determines that described color dot S is described some C _{r, i}, j=r is set, k=j, and triggers described first judgment sub-unit.

As can be seen from the above technical solutions, the embodiment of the present invention has the following advantages:

A kind of method and device obtaining the maximum common color gamut of display screen that the embodiment of the present invention provides, wherein, the method obtaining the maximum common color gamut of display screen comprises: the number of colors determining the primary colours in a plurality of colour gamut, and carries out the primary colours classification of adjacent color according to all color dots in all colour gamuts of each Color pair; To belonging to the classification of same primary colours, and all color dots do not belonged in same colour gamut are determined; The chromaticity coordinates corresponding according to color dot is determined to meet the public color dot not exceeding the condition of each colour gamut, and the chromaticity coordinates that public color dot is corresponding is the border chromaticity coordinates of at least one colour gamut; The chromaticity coordinates corresponding according to all public color dots determines maximum common color gamut.In the present embodiment, by first carrying out the primary colours classification of adjacent color according to all color dots in all colour gamuts of each Color pair, the classification of same primary colours will be belonged to again, and all color dots do not belonged in same colour gamut carry out the determination of a plurality of colour gamut, then corresponding according to color dot chromaticity coordinates is determined to meet the public color dot not exceeding the condition of each colour gamut, the last chromaticity coordinates corresponding according to all public color dots determines maximum common color gamut, the maximum common color gamut realizing the display screen of multiple bases is asked for, thus improve the display consistency of display screen, further increase display screen actual displayed effect.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

A kind of schematic flow sheet that obtain an embodiment of the method for display screen maximum common color gamut of Fig. 1 for providing in the embodiment of the present invention;

A kind of schematic flow sheet that obtain another embodiment of the method for display screen maximum common color gamut of Fig. 2 for providing in the embodiment of the present invention;

A kind of schematic flow sheet that obtain another embodiment of the method for display screen maximum common color gamut of Fig. 3 for providing in the embodiment of the present invention;

A kind of structural representation that obtain an embodiment of the device of display screen maximum common color gamut of Fig. 4 for providing in the embodiment of the present invention;

A kind of structural representation that obtain another embodiment of the device of display screen maximum common color gamut of Fig. 5 for providing in the embodiment of the present invention;

Fig. 6 is primary colours classification schematic diagram;

Fig. 7 is the schematic diagram of the application examples of Fig. 3;

Fig. 8 is a schematic diagram of the maximum common color gamut of Fig. 7;

Fig. 9 is the final schematic diagram of the maximum common color gamut of Fig. 8.

Embodiment

Embodiments provide a kind of method and the device that obtain the maximum common color gamut of display screen, ask for for the maximum common color gamut realizing the display screen of multiple bases, thus improve the display consistency of display screen.For making goal of the invention of the present invention, feature, advantage can be more obvious and understandable, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, the embodiments described below are only the present invention's part embodiments, and the embodiment of not all.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.

Refer to Fig. 1, a kind of embodiment obtaining the method for the maximum common color gamut of display screen provided in the embodiment of the present invention comprises:

101, determine the number of colors of the primary colours in a plurality of colour gamut, and carry out the primary colours classification of adjacent color according to all color dots in all colour gamuts of each Color pair;

In the present embodiment, before the colour consistency of display screen regulates, need to ask maximum common color gamut through a step, when asking maximum common color gamut, first need the number of colors of the primary colours determined in a plurality of colour gamut, and carry out the primary colours classification of adjacent color according to all color dots in all colour gamuts of each Color pair.

Such as shown in Fig. 6, there is m different colour gamut, be designated as N respectively ₁, N ₂... N _m.Colour gamut N ₁n primary colours be designated as C respectively ₁₁, C ₁₂... C _1n.Colour gamut N ₂n primary colours be designated as C respectively ₂₁, C ₂₂... C _2n.Colour gamut N _mn primary colours be designated as C respectively _m1, C _m2... C _mn.Then primary colours classification C ₁={ C ₁₁, C ₂₁... C _m1, primary colours classification C ₂={ C ₁₂, C ₂₂... C _m2, by that analogy, primary colours classification C _n={ C _1n, C _2n... C _mn.Wherein, the color that the primary colours in each primary colours classification comprise is close, such as, during n=3, and primary colours classification C ₁={ C ₁₁, C ₂₁... C _m1all for belonging to the adjacent look of red primaries, primary colours classification C ₂={ C ₁₂, C ₂₂... C _m2all for belonging to the adjacent look of green primary, primary colours classification C ₃={ C ₁₃, C ₂₃... C _m3all for belonging to the adjacent look of blue primary color, because if the color that there is a primary colours classification exists the larger situation of difference, the maximum common color gamut meaning obtained like this is just little.Such as C ₂interior C ₁₂, C ₂₂green, and C ₃₂be then yellow, such color difference is larger.

102, to belonging to the classification of same primary colours, and all color dots do not belonged in same colour gamut are determined;

When determining the number of colors of the primary colours in a plurality of colour gamut, and carry out the primary colours classification of adjacent color according to all color dots in all colour gamuts of each Color pair after, need belonging to the classification of same primary colours, and all color dots do not belonged in same colour gamut are determined, such as, C in Fig. 6 ₁₁point, C ₁₂point, C ₁₃point connection is a colour gamut, C ₂₁point, C ₂₂point, C ₂₃point connects for another colour gamut, C ₃₁point, C ₃₂point, C ₃₃point connects for another colour gamut.

103, corresponding according to color dot chromaticity coordinates is determined to meet the public color dot not exceeding the condition of each colour gamut;

When belonging to the classification of same primary colours, and after all color dots do not belonged in same colour gamut carry out the determination of a plurality of colour gamut, need the chromaticity coordinates corresponding according to color dot to determine to meet the public color dot not exceeding the condition of each colour gamut, the chromaticity coordinates that public color dot is corresponding is the border chromaticity coordinates of at least one colour gamut.

104, corresponding according to all public color dots chromaticity coordinates determines maximum common color gamut.

When the chromaticity coordinates corresponding according to color dot determine meet do not exceed the public color dot of the condition of each colour gamut after, need the chromaticity coordinates corresponding according to all public color dots to determine maximum common color gamut.

It should be noted that, be the maximum common color gamut on chromatic diagram by the adjacent polygon connected to form of all public color dots.

In the present embodiment, by first carrying out the primary colours classification of adjacent color according to all color dots in all colour gamuts of each Color pair, again to belonging to the classification of same primary colours, and all color dots do not belonged in same colour gamut are determined, then corresponding according to color dot chromaticity coordinates is determined to meet the public color dot not exceeding the condition of each colour gamut, the last chromaticity coordinates corresponding according to all public color dots determines maximum common color gamut, maximum common color gamut for realizing the display screen of multiple bases is asked for, thus improve the display consistency of display screen, further increase display screen actual displayed effect.

The above is described in detail the method obtaining the maximum common color gamut of display screen, the chromaticity coordinates corresponding according to color dot will be determined to meeting the process not exceeding the public color dot of the condition of each colour gamut is described in detail below, refer to Fig. 2, a kind of another embodiment obtaining the method for the maximum common color gamut of display screen provided in the embodiment of the present invention comprises:

201, determine the number of colors of the primary colours in a plurality of colour gamut, and carry out the primary colours classification of adjacent color according to all color dots in all colour gamuts of each Color pair;

In the present embodiment, before the colour consistency of display screen regulates, need to ask maximum colour gamut through a step, when asking maximum common color gamut, first need the number of colors of the primary colours determined in a plurality of colour gamut, and carry out the primary colours classification of adjacent color according to all color dots in all colour gamuts of each Color pair.

202, to belonging to the classification of same primary colours, and all color dots do not belonged in same colour gamut are determined;

203, successively primary colours classification is traveled through, successively condition judgment is carried out to the chromaticity coordinates of all color dots in the primary colours classification of current traversal, if having the color dot meeting and do not exceed the condition of each colour gamut, then performs step 204;

When belonging to the classification of same primary colours, and after all color dots do not belonged in same colour gamut carry out the determination of a plurality of colour gamut, need to travel through primary colours classification successively, successively condition judgment is carried out to the chromaticity coordinates of all color dots in the primary colours classification of current traversal, if have the color dot meeting and do not exceed the condition of each colour gamut, then perform step 204.

204, color dot is a public color dot, and travels through next primary colours classification, until the color dot of the classification of all primary colours and correspondence thereof has traveled through, determines all public color dots;

When traveling through primary colours classification successively, carrying out condition judgment successively to the chromaticity coordinates of all color dots in the primary colours classification of current traversal is have the color dot meeting and do not exceed the condition of each colour gamut, then color dot is a public color dot, and next primary colours classification is traveled through, repeated execution of steps 203, until the color dot of all primary colours classification and correspondence thereof has traveled through, all public color dots are determined.

205, corresponding according to all public color dots chromaticity coordinates determines maximum common color gamut.

When the color dot of all primary colours classification and correspondence thereof has traveled through, after determining all public color dot of the condition not exceeding each colour gamut, the chromaticity coordinates corresponding according to all public color dots has been needed to determine maximum common color gamut.

In the present embodiment, by first carrying out the primary colours classification of adjacent color according to all color dots in all colour gamuts of each Color pair, the classification of same primary colours will be belonged to again, and all color dots do not belonged in same colour gamut carry out the determination of a plurality of colour gamut, then corresponding according to color dot chromaticity coordinates is determined to meet the public color dot not exceeding the condition of each colour gamut, the last chromaticity coordinates corresponding according to all public color dots determines maximum common color gamut, maximum common color gamut for realizing the display screen of multiple bases is asked for, thus improve the display consistency of display screen, further increase display screen actual displayed effect, and the color dot traveled through successively in units of colour gamut in the classification of each primary colours, determine to meet the color dot not exceeding the condition of each colour gamut, just the color dot in exhaustively being classified by multiple bases efficiently determines whether the beneficial effect satisfied condition.

In the present embodiment, by first carrying out the primary colours classification of adjacent color according to all color dots in all colour gamuts of each Color pair, again to belonging to the classification of same primary colours, and all color dots do not belonged in same colour gamut are determined, then corresponding according to color dot chromaticity coordinates is determined to meet the public color dot not exceeding the condition of each colour gamut, the last chromaticity coordinates corresponding according to all public color dots determines maximum common color gamut, just achieve the display screen asked for regard to multiple bases and carry out asking for of maximum common color gamut, further increase display screen actual displayed effect.

The chromaticity coordinates corresponding according to color dot is determined that meeting the process not exceeding the public color dot of the condition of each colour gamut is described in detail above, below will to a plurality of colour gamut intersection complicated situation, whether the color dot in primary colours classification and intersection point meet the process not exceeding the public color dot of the condition of each colour gamut is described in detail, refer to Fig. 3, a kind of another embodiment obtaining the method for the maximum common color gamut of display screen provided in the embodiment of the present invention comprises:

301, determine the number of colors of the primary colours in a plurality of colour gamut, and carry out the primary colours classification of adjacent color according to all color dots in all colour gamuts of each Color pair;

302, to belonging to the classification of same primary colours, and all color dots do not belonged in same colour gamut are determined;

When determining the number of colors of the primary colours in a plurality of colour gamut, and carry out the primary colours classification of adjacent color according to all color dots in all colour gamuts of each Color pair after, needs will belong to the classification of same primary colours, and all color dots do not belonged in same colour gamut carry out the determination of a plurality of colour gamut, such as, C in Fig. 6 ₁₁point, C ₁₂point, C ₁₃point connection is a colour gamut, C ₂₁point, C ₂₂point, C ₂₃point connects for another colour gamut, C ₃₁point, C ₃₂point, C ₃₃point connects for another colour gamut.

303, be j=1, k=j by default settings, color dot S=C _{j, i};

When belonging to the classification of same primary colours, and after all color dots do not belonged in same colour gamut carry out the determination of a plurality of colour gamut, needing default settings is j=1, k=j, color dot S=C _{j, i}, j and k is the colour gamut variate-value that color dot is corresponding, and i is primary colours classification value, C _{j, i}for the i-th primary colours classification color dot of jth colour gamut, such as, all colour gamuts are depicted all on a chromaticity diagram, then can see the individual discrete cluster of n, and the limit between colour gamut may exist intersection point, as shown in Figure 6.

304, make the color gamut value r=1 that described color dot is corresponding, carry out r and whether be not equal to j, and be not equal to the judgement of k, if so, then perform step 305;

When being j=1, k=j by default settings, color dot S=C _{j, i}afterwards, need the color gamut value r=1 that assumed appearance point is corresponding, carry out r and whether be not equal to j, and be not equal to the judgement of k, if so, then perform step 305.

Whether 305, corresponding to the color dot S of current traversal chromaticity coordinates does not exceed triangle C corresponding to r colour gamut _{r, i+1}c _r,ic _{r, i-1}judgement, if color dot S exceeds triangle C corresponding to r colour gamut _{r, i+1}c _r,ic _r, _i-1, then step 307 is performed, if color dot S does not exceed triangle C corresponding to r colour gamut _{r, i+1}c _r,ic _{r, i-1}, then step 306 is performed;

Be not equal to j when each color dot S carries out r, and be not equal to k, then whether corresponding to the color dot S of current traversal chromaticity coordinates does not exceed triangle C corresponding to r colour gamut _{r, i+1}c _r,ic _{r, i-1}judgement, if color dot S exceeds triangle C corresponding to r colour gamut _{r, i+1}c _r,ic _{r, i-1}, then step 307 is performed, if color dot S does not exceed triangle C corresponding to r colour gamut _{r, i+1}c _r,ic _{r, i-1}, then step 306 is performed.

Whether 306, corresponding to the color dot S of current traversal chromaticity coordinates does not exceed triangle C corresponding to r+1 colour gamut _{r+1, i+1}c _{r+1, i}c _{r+1, i-1}judgement, if the color dot S of current traversal exceeds triangle C corresponding to r+1 colour gamut _{r+1, i+1}c _{r+1, i}c _{r+1, i-1}, then perform step 307, until traversing triangle corresponding to all colour gamuts completes, and the color dot S of current traversal does not exceed triangle C corresponding to r+1 colour gamut _{r+1, i+1}c _{r+1, i}c _{r+1, i-1}, then the color dot S of current traversal is a public color dot;

When judging in step 305 that color dot S does not exceed triangle C corresponding to r colour gamut _{r, i+1}c _r,ic _{r, i-1}, then whether corresponding to the color dot S of current traversal chromaticity coordinates does not exceed triangle C corresponding to r+1 colour gamut _{r+1, i+1}c _{r+1, i}c _{r+1, i-1}judgement, if the color dot S of current traversal exceeds triangle C corresponding to r+1 colour gamut _{r+1, i+1}c _{r+1, i}c _{r+1, i-1}, then perform step 307, until traversing triangle corresponding to all colour gamuts completes, and the color dot S of current traversal does not exceed triangle C corresponding to r+1 colour gamut _{r+1, i+1}c _{r+1, i}c _{r+1, i-1}, then the color dot S of current traversal is a public color dot.

307, judge whether k equals j, if k=j, then perform step 308, if judge k ≠ j, then perform step 312;

Judge in r colour gamut or step 306 that the color dot S of current traversal exceeds r+1 colour gamut when judging in step 305 that color dot S exceeds, then judge whether k equals j, if k=j, then perform step 308, if judge k ≠ j, then perform step 312.

308, judge with a C _{j, i}for the limit C on summit _{j, i}c _{j, i-1}with with a C _{r, i}for the limit C on summit _{r, i}c _{r, i+1}or with a C _{j, i}for the limit C on summit _{j, i}c _{j, i+1}with with a C _{r, i}for the limit C on summit _{r, i}c _{r, i-1}whether there is intersection point J1 or intersection point J2, if limit C _{j, i}c _{j, i-1}with limit C _{r, i}c _{r, i+1}there is intersection point J1, then perform step 309, if limit C _{j, i}c _{j, i+1}with limit C _{r, i}c _{r, i-1}there is intersection point J2, then perform step 310, if limit C _{j, i}c _{j, i-1}with limit C _{r, i}c _{r, i+1}and limit C _{j, i}c _{j, i+1}with limit C _{r, i}c _{r, i-1}all there is not intersection point, then perform step 311;

After judging k=j, need to judge with a C _{j, i}for the limit C on summit _{j, i}c _{j, i-1}with with a C _{r, i}for the limit C on summit _{r, i}c _{r, i+1}or with a C _{j, i}for the limit C on summit _{j, i}c _{j, i+1}with with a C _{r, i}for the limit C on summit _r, _ic _{r, i-1}whether there is intersection point J1 or intersection point J2, if limit C _{j, i}c _{j, i-1}with limit C _{r, i}c _{r, i+1}there is intersection point J1, then perform step 309, if limit C _{j, i}c _{j, i+1}with limit C _{r, i}c _{r, i-1}there is intersection point J2, then perform step 310, if limit C _{j, i}c _{j, i-1}with limit C _{r, i}c _{r, i+1}and limit C _{j, i}c _{j, i+1}with limit C _{r, i}c _{r, i-1}all there is not intersection point, then perform step 311.

309, determine that color dot S is intersection point J1, and calculate the first chromaticity coordinates corresponding to intersection point J1, k=r is set, and again perform step 304;

If limit C _{j, i}c _{j, i-1}with limit C _{r, i}c _{r, i+1}there is intersection point J1, then determine that color dot S is intersection point J1, and calculate the first chromaticity coordinates corresponding to intersection point J1, k=r is set, and again perform step 304.

310, determine that color dot S is intersection point J2, calculate the second chromaticity coordinates that intersection point J2 is corresponding, k=j is set, j=r, and again perform step 304;

If limit C _{j, i}c _{j, i+1}with limit C _{r, i}c _{r, i-1}there is intersection point J2, then determine that color dot S is intersection point J2, calculate the second chromaticity coordinates that intersection point J2 is corresponding, k=j is set, j=r, and again perform step 304.

311, color dot S=C is defined as _{r, i}, j=r is set, k=j, and again performs step 304;

If limit C _{j, i}c _{j, i-1}with limit C _{r, i}c _{r, i+1}and limit C _{j, i}c _{j, i+1}with limit C _{r, i}c _{r, i-1}all there is not intersection point, be then defined as color dot S=C _{r, i}, k=j is set, j=r, and again performs step 304.

312, judge with a C _{j, i}for the limit C on summit _{j, i}c _{j, i-1}with with a C _{r, i}for the limit C on summit _{r, i}c _{r, i+1}whether there is intersection point J3, if limit C _{j, i}c _{j, i-1}with limit C _{r, i}c _{r, i+1}there is intersection point J3, then perform step 313, if limit C _{j, i}c _{j, i-1}with limit C _{r, i}c _{r, i+1}there is not intersection point J3, then perform step 314;

If judge k ≠ j, then judge with a C _{j, i}for the limit C on summit _{j, i}c _{j, i-1}with with a C _{r, i}for the limit C on summit _{r, i}c _{r, i+1}whether there is intersection point J3, if limit C _{j, i}c _{j, i-1}with limit C _{r, i}c _{r, i+1}there is intersection point J3, then perform step 313, if limit C _{j, i}c _{j, i-1}with limit C _{r, i}c _{r, i+1}there is not intersection point J3, then perform step 314.

313, corresponding according to the intersection point J3 calculated trichromatic coordinate judges that whether intersection point J3 is at line segment C _j, _ion the extended line of S, if intersection point J3 is at line segment C _{j, i}on the extended line of S, then perform step 315, if intersection point J3 is at line segment C _{j, i}on S, then perform step 316;

If limit C _{j, i}c _{j, i-1}with limit C _{r, i}c _{r, i+1}there is intersection point J3, then corresponding according to the intersection point J3 calculated trichromatic coordinate judges that whether intersection point J3 is at line segment C _{j, i}on the extended line of S, if intersection point J3 is at line segment C _{j, i}on the extended line of S, then perform step 315, if intersection point J3 is at line segment C _{j, i}on S, then perform step 316;

314, judge with a C _{k, i}for the limit C on summit _{k, i}c _{k, i+1}with with a C _{r, i}for the limit C on summit _{r, i}c _{r, i-1}whether there is intersection point J4, if there is intersection point J4, then perform step 316, if there is not intersection point J4, then determine that color dot S is for some C _{r, i}, j=r is set, k=j, and again performs step 304;

If limit C _{j, i}c _{j, i-1}with limit C _{r, i}c _{r, i+1}there is not intersection point J3, then judge with a C _{k, i}for the limit C on summit _{k, i}c _{k, i+1}with with a C _{r, i}for the limit C on summit _{r, i}c _{r, i-1}whether there is intersection point J4, if there is intersection point J4, then perform step 316, if there is not intersection point J4, then determine that color dot S is for some C _{r, i}, j=r is set, k=j, and again performs step 304.

315, determine that color dot S is intersection point J3, k=r is set, and again perform step 304;

If intersection point J3 is at line segment C _{j, i}on the extended line of S, then determine that color dot S is intersection point J3, k=r is set, and again perform step 304.

316, calculate with a C _{k, i}for the limit C on summit _{k, i}c _{k, i+1}with with a C _{r, i}for the limit C on summit _{r, i-1}intersection point J4, color dot S is intersection point J4, arranges j=r, and again perform step 304;

If intersection point J3 is at line segment C _{j, i}on S, then calculate with a C _{k, i}for the limit C on summit _{k, i}c _{k, i+1}with with a C _{r, i}for the limit C on summit _{r, i}c _{r, i-1}intersection point J4, color dot S is intersection point J4, arranges j=r, and again perform step 304.

317, corresponding according to all public color dots chromaticity coordinates determines maximum common color gamut.

After all public color dot of the condition determining not exceed each colour gamut, the chromaticity coordinates corresponding according to all public color dots is needed to determine maximum common color gamut.

In the present embodiment, by first carrying out the primary colours classification of adjacent color according to all color dots in all colour gamuts of each Color pair, again to belonging to the classification of same primary colours, and all color dots do not belonged in same colour gamut are determined, then corresponding according to color dot chromaticity coordinates is determined to meet the public color dot not exceeding the condition of each colour gamut, the last chromaticity coordinates corresponding according to all public color dots determines maximum common color gamut, maximum common color gamut for realizing the display screen of multiple bases is asked for, thus improve the display consistency of display screen, further increase display screen actual displayed effect, and the color dot traveled through successively in units of colour gamut in the classification of each primary colours, determine to meet the color dot not exceeding the condition of each colour gamut, just the color dot in exhaustively being classified by multiple bases efficiently determines whether the beneficial effect satisfied condition, whether the intersection point of simultaneously complicated a plurality of colour gamuts also meets the judgement of the condition not exceeding each colour gamut, further increase the accuracy that maximum common color gamut is asked for.

For the ease of understanding, be described in detail embodiment illustrated in fig. 3 with an embody rule scene below, shown in Fig. 7, application examples comprises:

The fill in colors on a sketch summit in territory is Ci, i=1,2,3 ... n, color and primary colours point set C _iplace Color pair should.Colour gamut is asked to be then that the summit of all colour gamuts is obtained.

Ask the step of the summit Ci of colour gamut:

1.j=1, k=j, some S=C _j,i.

2. travel through r (r=1,2 ... m, r ≠ j and r ≠ k), judge that whether S is at all triangle C _{r, i+1}c _r,ic _{r, i-1}in (or on).As run into S at certain triangle C _{r, i+1}c _r,ic _{r, i-1}outward, then carry out step 3.As S all in all triangles (or on), then S is the summit Ci of common color gamut, process ends.

3., if k=j, judge limit C _jic _{j, i+1}with limit C _r,ic _{r, i-1}or limit C _jic _{j, i-1}with limit C _r,ic _{r, i+1}whether there is intersection point.If there is no intersection point, then order point S=C _r,i, j=r, k=j, return step 2.If there is intersection point, intersection point J is obtained, makes S=J.If J is limit C _jic _{j, i-1}with limit C _r,ic _{r, i+1}intersection point, then k=r.If J is limit C _jic _{j, i+1}with limit C _r,ic _{r, i-1}intersection point, then k=j, j=r.Return step 2.If k ≠ j, judge limit C _jic _{j, i-1}with limit C _r,ic _{r, i+1}whether there is intersection point.If existed, obtain intersection point J, judge that whether intersection point J is at line segment C _jion the extended line of S.If intersection point is at line segment C _jion the extended line of S, make S=J, k=r, return step 2.If intersection point is at line segment C _jion S, then C _kic _{k, i+1}with limit C _r,ic _{r, i-1}intersection point J obtain, make S=J, j=r, return step 2.If there is no, limit C is judged _kic _{k, i+1}with limit C _r,ic _{r, i-1}whether there is intersection point.If existed, intersection point J is obtained, makes S=J, j=r, return step 2.If there is no, then there is not intersection point, order point S=C _r,i, j=r, k=j, return step 2.

Finally, the summit of all n colour gamut is obtained, obtain the maximum colour gamut of m different colour gamut.

By the process shown in Fig. 7, set forth further with an example:

Colour gamut N ₁data are as table 1:

	x	y
			C ₁₁	0.68	0.31
C ₁₂	0.475	0.501
			C ₁₃	0.16	0.7
C ₁₄	0.085	0.35
			C ₁₅	0.132	0.055

Table 1

Colour gamut N ₂data are as table 2:

	x	y
			C ₂₁	0.687	0.29
C ₂₂	0.472	0.512
			C ₂₃	0.15	0.68
C ₂₄	0.097	0.37
			C ₂₅	0.122	0.076

Table 2

Colour gamut N ₃data are as table 3:

	x	y
			C ₃₁	0.691	0.275
C ₃₂	0.522	0.465
			C ₃₃	0.168	0.68
C ₃₄	0.082	0.41
			C ₃₅	0.142	0.074

Table 3

Represent as Fig. 8 (colour gamut N at chromatic diagram ₁represent with circle, colour gamut N ₂represent with square, colour gamut N ₃represent with triangle), comprise 5 primary colours classification.

For the summit C3 of colour gamut, its solution path is: C ₁₃->J1->J2.

Other gamut vertices solve consistent with C3, finally solve that to obtain gamut vertices chromaticity coordinates as shown in table 4:

	x	y
			C ₁	0.666	0.303
C ₂	0.498	0.48
			C ₃	0.165	0.672
C ₄	0.097	0.37
			C ₅	0.14	0.083

2 tables 4

All summits of colour gamut are obtained and connected, and maximum common color gamut is as shown in Fig. 9 dotted line.

Refer to Fig. 4, a kind of embodiment obtaining the device of the maximum common color gamut of display screen provided in the embodiment of the present invention comprises:

Taxon 401, for determining the number of colors of the primary colours in a plurality of colour gamut, and carries out the primary colours classification of adjacent color according to all color dots in all colour gamuts of each Color pair;

Gamut determination unit 402, for classifying to belonging to same primary colours, and all color dots do not belonged in same colour gamut are determined;

Public color dot determining unit 403, determine for the chromaticity coordinates corresponding according to color dot to meet the public color dot not exceeding the condition of each colour gamut, the chromaticity coordinates that public color dot is corresponding is the border chromaticity coordinates of at least one colour gamut;

Maximum common color gamut determining unit 404, determines maximum common color gamut for the chromaticity coordinates corresponding according to all public color dots.

In the present embodiment, first carried out the primary colours classification of adjacent color according to all color dots in all colour gamuts of each Color pair by taxon 401, gamut determination unit 402 is again to belonging to the classification of same primary colours, and all color dots do not belonged in same colour gamut are determined, then the chromaticity coordinates that public color dot determining unit 403 is corresponding according to color dot is determined to meet the public color dot not exceeding the condition of each colour gamut, last maximum common color gamut determining unit 404 chromaticity coordinates corresponding according to all public color dots determines maximum common color gamut, just the maximum common color gamut for realizing the display screen of multiple bases is asked for, thus improve the display consistency of display screen, further increase display screen actual displayed effect.

The above is described in detail each unit of the device obtaining the maximum common color gamut of display screen, below sub-unit is described in detail, refer to Fig. 5, a kind of embodiment obtaining the device of the maximum common color gamut of display screen provided in the embodiment of the present invention comprises:

Taxon 501, for determining the number of colors of the primary colours in a plurality of colour gamut, and carries out the primary colours classification of adjacent color according to all color dots in all colour gamuts of each Color pair;

Gamut determination unit 502, for classifying to belonging to same primary colours, and all color dots do not belonged in same colour gamut are determined;

Public color dot determining unit 503, determine for the chromaticity coordinates corresponding according to color dot to meet the public color dot not exceeding the condition of each colour gamut, the chromaticity coordinates that public color dot is corresponding is the border chromaticity coordinates of at least one colour gamut, public color dot determining unit 503, specifically for traveling through primary colours classification successively, successively condition judgment is carried out to the chromaticity coordinates of all color dots in the primary colours classification of current traversal, if have the color dot meeting and do not exceed the condition of each colour gamut, then color dot is a public color dot, and next primary colours classification is traveled through, until the color dot of all primary colours classification and correspondence thereof has traveled through, determine all public color dots.

Public color dot determining unit 503 specifically comprises:

Preset subelement 5031, for being j=1, k=j by default settings, color dot S=C _{j, i}, j and k is the colour gamut variate-value that color dot is corresponding, and i is primary colours classification value, C _{j, i}for the i-th primary colours classification color dot of jth colour gamut;

First judgment sub-unit 5032, for the color gamut value r=1 that assumed appearance point is corresponding, carries out r and whether is not equal to j, and be not equal to the judgement of k, if so, then trigger the second judgment sub-unit 5033;

Second judgment sub-unit 5033, whether the chromaticity coordinates corresponding for the color dot S to current traversal does not exceed triangle C corresponding to r colour gamut _{r, i+1}c _r,ic _{r, i-1}judgement, if color dot S exceeds triangle C corresponding to r colour gamut _{r, i+1}c _r,ic _{r, i-1}, then preset colour gamut limit intersection point judgment sub-unit 5035 is triggered, if color dot S does not exceed triangle C corresponding to r colour gamut _{r, i+1}c _r,ic _{r, i-1}, then the 3rd judgment sub-unit 5034 is triggered;

3rd judgment sub-unit 5034, whether the chromaticity coordinates corresponding for the color dot S to current traversal does not exceed triangle C corresponding to r+1 colour gamut _{r+1, i+1}c _{r+1, i}c _{r+1, i-1}judgement, if the color dot S of current traversal exceeds triangle C corresponding to r+1 colour gamut _{r+1, i+1}c _{r+1, i}c _{r+1, i-1}, then trigger preset colour gamut limit intersection point judgment sub-unit 5035, until traversing triangle corresponding to all colour gamuts completes, and the color dot S of current traversal does not exceed triangle C corresponding to r+1 colour gamut _{r+1, i+1}c _{r+1, i}c _{r+1, i-1}, then the color dot S of current traversal is a public color dot.

Preset colour gamut limit intersection point judgment sub-unit 5035 specifically comprises:

First judge module 5035a, for judging whether k equals j, if k=j, then triggers the second judge module 5035b, if k ≠ j, then triggers the 3rd judge module 5035c;

Second judge module 5035b, for judging with a C _{j, i}for the limit C on summit _{j, i}c _{j, i-1}with with a C _{r, i}for the limit C on summit _{r, i}c _{r, i+1}or with a C _{j, i}for the limit C on summit _{j, i}c _{j, i+1}with with a C _{r, i}for the limit C on summit _{r, i}c _{r, i-1}whether there is intersection point J1 or intersection point J2, if limit C _{j, i}c _{j, i-1}with limit C _{r, i}c _{r, i+1}there is intersection point J1, then trigger the first determination module 5035d, if limit C _{j, i}c _{j, i+1}with limit C _{r, i}c _{r, i-1}there is intersection point J2, then trigger the second determination module 5035e, if limit C _{j, i}c _{j, i-1}with limit C _{r, i}c _{r, i+1}and limit C _{j, i}c _{j, i+1}with limit C _{r, i}c _{r, i-1}all there is not intersection point, then trigger the 3rd determination module 5035f;

3rd judge module 5035c, specifically for judging with a C _{j, i}for the limit C on summit _{j, i}c _{j, i-1}with with a C _{r, i}for the limit C on summit _{r, i}c _{r, i+1}whether there is intersection point J3, if limit C _{j, i}c _{j, i-1}with limit C _{r, i}c _{r, i+1}there is intersection point J3, then trigger the 4th judge module 5035g, if limit C _{j, i}c _{j, i-1}with limit C _{r, i}c _{r, i+1}there is not intersection point J3, then trigger the 5th judge module 5035h;

First determination module 5035d, for determining that color dot S is intersection point J1, and calculating the first chromaticity coordinates corresponding to intersection point J1, arranging k=r, and triggering the first judgment sub-unit 5032;

Second determination module 5035e, for determining that color dot S is intersection point J2, and calculating the second chromaticity coordinates corresponding to intersection point J2, arranging k=j, j=r, and triggering the first judgment sub-unit 5032;

3rd determination module 5035f, for being defined as color dot S=C _{r, i}, k=j is set, j=r, and triggers the first judgment sub-unit 5032.

For the trichromatic coordinate corresponding according to the intersection point J3 calculated, 4th judge module 5035g, judges that whether intersection point J3 is at line segment C _{j, i}on the extended line of S, if intersection point J3 is at line segment C _{j, i}on the extended line of S, then trigger the 4th determination module 5035i, if intersection point J3 is at line segment C _{j, i}on S, then calculate with a C _{k, i}for the limit C on summit _{k, i}c _{k, i+1}with with a C _{r, i}for the limit C on summit _{r, i}c _{r, i-1}intersection point J4, color dot S is intersection point J4, arranges j=r, and triggers the first judgment sub-unit 5032;

4th determination module 5035i, determines that described color dot S is intersection point J3, arranges k=r, and trigger the first judgment sub-unit 5032;

5th judge module 5035h, for judging with a C _{k, i}for the limit C on summit _{k, i}c _{k, i+1}with with a C _r, _ifor the limit C on summit _{r, i}c _{r, i-1}whether there is intersection point J4, if there is intersection point J4, then calculate with a C _{k, i}for the limit C on summit _{k, i}c _{k, i+1}with with a C _{r, i}for the limit C on summit _{r, i}c _{r, i-1}intersection point J4, color dot S is intersection point J4, arranges j=r, and triggers the first judgment sub-unit 5032, if there is not intersection point J4, then determine color dot S for some a C _{r, i}, j=r is set, k=j, and triggers the first judgment sub-unit 5032.

Maximum common color gamut determining unit 504, determines maximum common color gamut for the chromaticity coordinates corresponding according to all public color dots.

In the present embodiment, first carried out the primary colours classification of adjacent color according to all color dots in all colour gamuts of each Color pair by taxon 501, gamut determination unit 502 is again to belonging to the classification of same primary colours, and all color dots do not belonged in same colour gamut are determined, then the chromaticity coordinates that public color dot determining unit 503 is corresponding according to color dot is determined to meet the public color dot not exceeding the condition of each colour gamut, last maximum common color gamut determining unit 504 chromaticity coordinates corresponding according to all public color dots determines maximum common color gamut, maximum common color gamut for realizing the display screen of multiple bases is asked for, thus improve the display consistency of display screen, further increase display screen actual displayed effect, and the color dot traveled through successively in units of colour gamut in the classification of each primary colours, determine to meet the color dot not exceeding the condition of each colour gamut, just the color dot in exhaustively being classified by multiple bases efficiently determines whether the beneficial effect satisfied condition, whether the intersection point of simultaneously complicated a plurality of colour gamuts also meets the judgement of the condition not exceeding each colour gamut, further increase the accuracy that maximum common color gamut is asked for.

Those skilled in the art can be well understood to, and for convenience and simplicity of description, the system of foregoing description, the specific works process of device and unit, with reference to the corresponding process in preceding method embodiment, can not repeat them here.

In several embodiments that the application provides, should be understood that, disclosed system, apparatus and method, can realize by another way.Such as, device embodiment described above is only schematic, such as, the division of described unit, be only a kind of logic function to divide, actual can have other dividing mode when realizing, such as multiple unit or assembly can in conjunction with or another system can be integrated into, or some features can be ignored, or do not perform.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, and the indirect coupling of device or unit or communication connection can be electrical, machinery or other form.

The described unit illustrated as separating component or can may not be and physically separates, and the parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of unit wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.

In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, also can be that the independent physics of unit exists, also can two or more unit in a unit integrated.Above-mentioned integrated unit both can adopt the form of hardware to realize, and the form of SFU software functional unit also can be adopted to realize.

If described integrated unit using the form of SFU software functional unit realize and as independently production marketing or use time, can be stored in a computer read/write memory medium.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words or all or part of of this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, ROM (read-only memory) (ROM, Read-OnlyMemory), random access memory (RAM, RandomAccessMemory), magnetic disc or CD etc. various can be program code stored medium.

The above, above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.

Claims

1. obtain a method for the maximum common color gamut of display screen, it is characterized in that, comprising:

2. the method for the maximum common color gamut of acquisition display screen according to claim 1, is characterized in that, the chromaticity coordinates corresponding according to described color dot determines that meeting the public color dot not exceeding the condition of each described colour gamut specifically comprises:

3. the method for the maximum common color gamut of acquisition display screen according to claim 2, it is characterized in that, successively described primary colours classification is traveled through, successively condition judgment is carried out to the chromaticity coordinates of all described color dot in the described primary colours classification of current traversal, if have the described color dot meeting and do not exceed the described condition of each described colour gamut, then described color dot is a described public color dot, and the described primary colours classification of the next one is traveled through, until the described color dot of all described primary colours classification and correspondence thereof has traveled through, determine that all described public color dots specifically comprise:

4. the method for the maximum common color gamut of acquisition display screen according to claim 3, is characterized in that, described preset colour gamut limit intersection point determining step specifically comprises:

5. the method for the maximum common color gamut of acquisition display screen according to claim 4, is characterized in that,

If judge k ≠ j, then judge with a C _{j, i}for the limit C on summit _{j, i}c _{j, i-1}with with a C _{r, i}for the limit C on summit _{r, i}c _{r, i+1}whether there is intersection point J3;

6. obtain a device for the maximum common color gamut of display screen, it is characterized in that, comprising:

7. the device of the maximum common color gamut of acquisition display screen according to claim 6, it is characterized in that, public color dot determining unit, specifically for traveling through described primary colours classification successively, successively condition judgment is carried out to the chromaticity coordinates of all described color dot in the described primary colours classification of current traversal, if have the described color dot meeting and do not exceed the described condition of each described colour gamut, then described color dot is a described public color dot, and the described primary colours classification of the next one is traveled through, until the described color dot of all described primary colours classification and correspondence thereof has traveled through, determine all described public color dots.

8. the device of the maximum common color gamut of acquisition display screen according to claim 7, is characterized in that, public color dot determining unit specifically comprises:

Described 3rd judgment sub-unit, whether the chromaticity coordinates corresponding for the described color dot S to current traversal does not exceed triangle C corresponding to colour gamut described in r+1 _{r+1, i+1}c _{r+1, i}c _{r+1, i-1}judgement, if the described color dot S of current traversal exceeds triangle C corresponding to colour gamut described in r+1 _{r+1, i+1}c _{r+1, i}c _{r+1, i-1}, then trigger described preset colour gamut limit intersection point judgment sub-unit, until traversing triangle corresponding to all described colour gamuts completes, and the described color dot S of current traversal does not exceed triangle C corresponding to colour gamut described in r+1 _{r+1, i+1}c _{r+1, i}c _r+1, _i-1, then the described color dot S of current traversal is a described public color dot.

9. the device of the maximum common color gamut of acquisition display screen according to claim 8, is characterized in that, preset colour gamut limit intersection point judgment sub-unit specifically comprises:

10. the device of the maximum common color gamut of acquisition display screen according to claim 9, is characterized in that, the 3rd judge module, specifically for judging with a C _{j, i}for the limit C on summit _{j, i}c _{j, i-1}with with a C _{r, i}for the limit C on summit _{r, i}c _{r, i+1}whether there is intersection point J3, if described limit C _{j, i}c _{j, i-1}with described limit C _{r, i}c _{r, i+1}there is intersection point J3, then trigger the 4th judge module, if described limit C _{j, i}c _{j, i-1}with described limit C _{r, i}c _{r, i+1}there is not intersection point J3, then trigger the 5th judge module;