CN105371954A - Color cast characterizing method - Google Patents
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- CN105371954A CN105371954A CN201510712841.XA CN201510712841A CN105371954A CN 105371954 A CN105371954 A CN 105371954A CN 201510712841 A CN201510712841 A CN 201510712841A CN 105371954 A CN105371954 A CN 105371954A
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- 238000000034 method Methods 0.000 title claims abstract description 37
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- 238000001228 spectrum Methods 0.000 description 2
- 241000736199 Paeonia Species 0.000 description 1
- 235000006484 Paeonia officinalis Nutrition 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- VQLYBLABXAHUDN-UHFFFAOYSA-N bis(4-fluorophenyl)-methyl-(1,2,4-triazol-1-ylmethyl)silane;methyl n-(1h-benzimidazol-2-yl)carbamate Chemical compound C1=CC=C2NC(NC(=O)OC)=NC2=C1.C=1C=C(F)C=CC=1[Si](C=1C=CC(F)=CC=1)(C)CN1C=NC=N1 VQLYBLABXAHUDN-UHFFFAOYSA-N 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- LGZXYFMMLRYXLK-UHFFFAOYSA-N mercury(2+);sulfide Chemical compound [S-2].[Hg+2] LGZXYFMMLRYXLK-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
- G01J3/462—Computing operations in or between colour spaces; Colour management systems
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Abstract
The invention provides a color cast characterizing method, and relates to the technical field of display. The method can be used to characterize the color cast value of the side view direction relative to the front view direction as well as color in the side view direction, so that researchers can adjust the display frame conveniently. The method comprises that a first color coordinate of a pure color image displayed by a display is obtained in the front view direction, and a second color coordinate of the pure color image displayed by the display is obtained in the side view direction; the color in the side view direction is obtained according to the second color coordinate; and the color cost value of the side view direction relative to the front view direction is obtained according to the first color coordinate and the second color coordinate. The method is used to characterize the color cast.
Description
Technical field
The present invention relates to display technique field, particularly relate to a kind of characterizing method of colour cast.
Background technology
At present, no matter be liquid crystal display (LiquidCrystalDisplay, LCD) or organic electroluminescent LED (OrganicLight-EmittingDiode, OLED) display, or other displays, all there is the circumscribed problem of visible angle.That is most of light is all shoot out from along the direction vertical with display display plane, relatively above-mentioned vertical direction will be caused like this, during from a larger angle viewing display, color originally will be can't see, thus make from positive apparent direction (namely, direction along vertical display display plane) there are differences between the color seen and the color seen from side-looking direction (that is, along the direction of non-perpendicular display display plane), namely there is colour cast.
And for the ease of follow-up, the problems referred to above are improved, then need to characterize above-mentioned colour cast, so that researchist can adjust display frame according to this characterization value, to make the color of the picture seen under side-looking angle identical with the color of the picture seen under positive angle.
Summary of the invention
Embodiments of the invention provide a kind of characterizing method of colour cast, both can characterize the size of the colour cast amount of the relatively positive apparent direction in side-looking direction, can characterize again the color under side-looking direction, be convenient to researchist and adjust display frame.
For achieving the above object, embodiments of the invention adopt following technical scheme:
A kind of characterizing method of colour cast is provided, comprises: the first chromaticity coordinates obtaining the pure color picture of display display in positive apparent direction, and the second chromaticity coordinates obtaining the pure color picture of described display display in side-looking direction; According to described second chromaticity coordinates, obtain the color under side-looking direction; According to described first chromaticity coordinates and described second chromaticity coordinates, obtain the colour cast amount of the relatively positive apparent direction in side-looking direction.
Preferably, described pure color picture is white picture.
Preferred further, described first chromaticity coordinates and described second chromaticity coordinates adopt CIE1931 colorimetric system to characterize; Based on this, according to described second chromaticity coordinates, obtain the color under side-looking direction, comprising: according to the chromaticity coordinates of the standard white light in described second chromaticity coordinates and CIE1931 colorimetric system, obtain the color under side-looking direction.
Preferred further, according to the chromaticity coordinates of the standard white light in described second chromaticity coordinates and CIE1931 colorimetric system, obtain the color under side-looking direction, comprise: the chromaticity coordinates of the standard white light in CIE1931 colorimetric system is connected with described second chromaticity coordinates, and extend to described second chromaticity coordinates direction until with the visible spectrum curve intersection of CIE1931 colorimetric system, the intersection point obtained is the wavelength that described second chromaticity coordinates is corresponding; According to described wavelength, obtain the color under side-looking direction.
Preferably, according to the chromaticity coordinates of the standard white light in described second chromaticity coordinates and CIE1931 colorimetric system, obtain the color under side-looking direction, comprise: with the chromaticity coordinates of the standard white light in CIE1931 colorimetric system for starting point, do straight line left in the horizontal direction, this straight line is defined as 0 ° of datum line; By the chromaticity coordinates line of the standard white light in described second chromaticity coordinates and CIE1931 colorimetric system, the angle of this line and 0 ° of datum line is θ; According to the scope of described θ, obtain the color under side-looking direction.
Preferably, the first chromaticity coordinates of the white picture of display display is obtained in positive apparent direction, and after side-looking direction obtains the second chromaticity coordinates of the white picture of described display display, according to described first chromaticity coordinates and described second chromaticity coordinates, before obtaining the colour cast amount of the relatively positive apparent direction in side-looking direction, described method also comprises: described first chromaticity coordinates and described second chromaticity coordinates are converted in CIE1976 colorimetric system and characterize, obtain trichromatic coordinate and the 4th chromaticity coordinates respectively; Based on this, according to described first chromaticity coordinates and described second chromaticity coordinates, obtain the colour cast amount of the relatively positive apparent direction in side-looking direction, comprising: be converted to the trichromatic coordinate and the 4th chromaticity coordinates that obtain in CIE1976 colorimetric system according to described first chromaticity coordinates and described second chromaticity coordinates, pass through formula
calculate colour cast amount; Wherein, △ u ' v ' is colour cast amount, (u ', v ') be trichromatic coordinate, (u '
0, v '
0) be the 4th chromaticity coordinates.
Based on above-mentioned, preferably, obtain the second chromaticity coordinates of the pure color picture of described display display in side-looking direction, comprising: the second chromaticity coordinates obtaining the pure color picture of described display display in left side apparent direction and right side apparent direction respectively; Wherein, apparent direction positive apparent direction relative to described right side apparent direction in described left side is symmetrical; Based on this, according to described second chromaticity coordinates, obtain the color under side-looking direction, comprising: described second chromaticity coordinates obtained according to described left side apparent direction, obtains the color under the apparent direction of described left side; According to described second chromaticity coordinates that described right side apparent direction obtains, obtain the color under the apparent direction of described right side; According to described first chromaticity coordinates and described second chromaticity coordinates, obtain the colour cast amount of the relatively positive apparent direction in side-looking direction, comprise: described second chromaticity coordinates obtained according to described first chromaticity coordinates and described left side apparent direction, obtains the colour cast amount of the relatively described positive apparent direction of described left side apparent direction; According to described second chromaticity coordinates that described first chromaticity coordinates and described right side apparent direction obtain, obtain the colour cast amount of the relatively described positive apparent direction of described right side apparent direction.
Preferred further, described method also comprises: the color under the color under the apparent direction of left side and right side apparent direction compared, and obtains the color distortion under left side apparent direction and right side apparent direction.
Preferably, the first chromaticity coordinates of the pure color picture of display display is obtained in positive apparent direction, and the second chromaticity coordinates of the pure color picture of described display display is obtained in side-looking direction, comprise: the first chromaticity coordinates obtaining the pure color picture center of display display in positive apparent direction, and the second chromaticity coordinates obtaining the pure color picture center of described display display in side-looking direction.
The embodiment of the present invention provides a kind of characterizing method of colour cast, this colour cast characterizing method both can obtain the size of the colour cast amount of the relative positive apparent direction in side-looking direction according to the first chromaticity coordinates and the second chromaticity coordinates, can obtain again the color under side-looking direction according to the second chromaticity coordinates, such researchist just can carry out rapid adjustment according to the Color pair display frame under colour cast amount and side-looking direction.
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.
The schematic flow sheet of the characterizing method of a kind of colour cast that Fig. 1 provides for the embodiment of the present invention;
A kind of schematic diagram obtaining color under side-looking direction based on the second chromaticity coordinates that Fig. 2 provides for the embodiment of the present invention;
The another kind that Fig. 3 provides for the embodiment of the present invention obtains the schematic diagram of color under side-looking direction based on the second chromaticity coordinates.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiments provide a kind of characterizing method of colour cast, as shown in Figure 1, the method comprises the steps:
S101, obtain the first chromaticity coordinates of the pure color picture of display display in positive apparent direction, and obtain the second chromaticity coordinates of the pure color picture of display display in side-looking direction.
Herein, positive apparent direction is perpendicular to the direction of the display screen of display, and side-looking direction refers to any direction of the display screen being not orthogonal to display.
The pure color picture of display display refers to that the color of each pixel display in display frame is identical, and can be tricolor frame, as red picture, green picture or blue picture, can certainly be other non-tricolor frame, as white picture etc.Wherein, due to when display display white picture, side-looking direction issues the chromaticity coordinates to the rear that adds lustre to and is easily acquired, and easily finds in colorimetric system due to the chromaticity coordinates that white picture is corresponding, and therefore, the embodiment of the present invention preferably makes display show white picture.
In addition, the position of acquisition first chromaticity coordinates and the second chromaticity coordinates is not limited, the first chromaticity coordinates and the second chromaticity coordinates that obtain the pure color picture of display display can be obtain in the center of display frame, also can in other positions, but the first chromaticity coordinates position obtained must be identical with the position of the second chromaticity coordinates.Wherein, the embodiment of the present invention preferably obtains the first chromaticity coordinates and the second chromaticity coordinates from the center of display display frame, this is because the center of display display frame is not too easily by the impact of edge effect, the first chromaticity coordinates of acquisition and the accuracy of the second chromaticity coordinates higher.
On this basis, also not limiting the method for acquisition first chromaticity coordinates and the second chromaticity coordinates, can be arbitrary method, as long as can obtain the chromaticity coordinates under positive apparent direction and side-looking direction.Example, the embodiment of the present invention can adopt optical test equipment to obtain the first chromaticity coordinates under positive apparent direction and the second chromaticity coordinates under side-looking direction.Wherein, above-mentioned optical test equipment can be color analysis instrument, and it comprises probe, and the position by the display screen controlling the relative display of probe obtains the first chromaticity coordinates and second chromaticity coordinates of such as center, display frame relevant position respectively.
For the first chromaticity coordinates and the second chromaticity coordinates, it can characterize in any colorimetric system.
S102, according to the second chromaticity coordinates, obtain the color under side-looking direction.
Herein, the method for the color obtained under side-looking direction according to the second chromaticity coordinates is not limited.
Such as: corresponding point can be found by the second chromaticity coordinates in colorimetric system, then in colorimetric system, the color of its place chromatic zones is found based on this, wherein, multiple chromatic zones is divided in the region that visible light Curves in colorimetric system surrounds, in each region, be considered to color substantially identical.
S103, according to the first chromaticity coordinates and the second chromaticity coordinates, obtain the colour cast amount of the relatively positive apparent direction in side-looking direction.
Herein, colour cast refers to the misalignment of the picture of the display display that the relatively positive apparent direction in side-looking direction is seen.Colour cast amount this misalignment larger is larger, and colour cast amount this misalignment less is less.
The embodiment of the present invention does not limit the method for the colour cast amount obtaining the relative positive apparent direction in side-looking direction according to described first chromaticity coordinates and described second chromaticity coordinates.
Such as: can in colorimetric system, according to described first chromaticity coordinates and described second chromaticity coordinates, by calculating the colour cast amount of the relatively positive apparent direction in side-looking direction.
The embodiment of the present invention provides a kind of characterizing method of colour cast, this colour cast characterizing method both can obtain the size of the colour cast amount of the relative positive apparent direction in side-looking direction according to the first chromaticity coordinates and the second chromaticity coordinates, can obtain again the color under side-looking direction according to the second chromaticity coordinates, such researchist just can carry out rapid adjustment according to the Color pair display frame under colour cast amount and side-looking direction.
Because colorimetric system conventional is at present CIE (InternationalCommissiononIllumination, the international luminous lighting council) 1931 and CIE1976, chromaticity coordinates in CIE1931 adopts x and y to represent, chromaticity coordinates in CIE1976 adopts u ' and v ' expression, wherein u ' and v ' need be converted by x, y and obtain, and the chromaticity coordinates that optical test equipment obtains at present generally all represents with x and y, therefore, preferably the first chromaticity coordinates and the second chromaticity coordinates adopt CIE1931 colorimetric system to characterize to the embodiment of the present invention.
Wherein, u ' and v ' and the reduction formula between x, y are:
u′＝4x/(-2x+12y+3)；
v′＝9y/(-2x+12y+3)。
Based on this, step S102 can be specifically: according to the chromaticity coordinates of the second chromaticity coordinates and standard white light in CIE1931 colorimetric system, obtain the color under side-looking direction.Wherein, the chromaticity coordinates of the standard white light in CIE1931 colorimetric system is (0.33,0.33).
Further, realize by the following two kinds mode.
Mode one: as shown in Figure 2, by the chromaticity coordinates of the standard white light in CIE1931 colorimetric system (namely, A point in figure) and the second chromaticity coordinates is (namely, B point in figure) be connected, and extend to the second chromaticity coordinates direction until with the visible light curve intersection of CIE1931 colorimetric system, the intersection point obtained (the C point namely in figure) is wavelength corresponding to described second chromaticity coordinates; According to this wavelength, obtain the color under side-looking direction.
Such as, wavelength is 700nm, and corresponding is peony, and wavelength is 660nm, and corresponding is red, and wavelength is 645nm, and corresponding is cerise.
It should be noted that, the aerofoil profile line of CIE1931 colorimetric system represents the track of all visible wavelengths, i.e. the visible ray curve of spectrum, and the point on edge track represents the spectrum colour of different wave length.
The chromaticity coordinates of the standard white light in CIE1931 colorimetric system be connected with the second chromaticity coordinates and extend to the second chromaticity coordinates direction until with the visible light curve intersection of CIE1931 colorimetric system, the color that such second chromaticity coordinates is corresponding can be expressed as mixing of color representated by intersection point and white light, therefore, intersection point is exactly the predominant wavelength of color corresponding to the second chromaticity coordinates, can obtain color corresponding to the second chromaticity coordinates according to the predominant wavelength of color on intersection point.
Mode two: as shown in Figure 3, for starting point, does straight line left with the chromaticity coordinates of the standard white light in CIE1931 colorimetric system (that is, the A point in figure) in the horizontal direction, this straight line is defined as 0 ° of datum line; By the chromaticity coordinates line of the second chromaticity coordinates (that is, the B point in figure) in CIE1931 colorimetric system with standard white light, the angle of this line and 0 ° of datum line is θ; According to the scope of θ, obtain the color under side-looking direction.
Wherein, can 0 ° of datum line be benchmark, when will rotate along clockwise direction, corresponding angle be defined as 0 ° ~ 180 °, when will rotate in the counterclockwise direction, and corresponding angle is defined as 0 ° ~-180 °.
The corresponding relation of θ scope and color is as follows: when θ size is-40 ~ 29 °, and the color under corresponding visual angle is bluish-green, and the larger green components of angle is larger; θ is green 29 ~ 57 ° of scopes; θ is yellow green 57 ~ 129 ° of scopes, more large more yellow; θ is yellow 129 ~ 168 ° of scopes; θ is Chinese red 168 ~ 180 ° of scopes, more large redder; θ is blue-40 ~-63 ° of scopes; θ is purple-63 ~-90 ° of scopes; θ is pink-90 ~-158 ° of scopes, and negative value more large red composition is redder; θ is corresponding red-158 ~-180 ° of scopes.
Step S103 can be specifically:
The first chromaticity coordinates of the white picture of display display is first obtained in positive apparent direction, and the second chromaticity coordinates of the white picture of described display display is obtained in side-looking direction, wherein the first chromaticity coordinates and the second chromaticity coordinates adopt CIE1931 colorimetric system to characterize, then the first chromaticity coordinates and the second chromaticity coordinates are converted in CIE1976 colorimetric system and characterize, obtain trichromatic coordinate and the 4th chromaticity coordinates respectively, according to trichromatic coordinate and the 4th chromaticity coordinates, the colour cast amount of the relatively positive apparent direction in side-looking direction can be obtained afterwards.
Wherein, according to trichromatic coordinate and the 4th chromaticity coordinates, obtain the colour cast amount of the relatively positive apparent direction in side-looking direction, specifically can be obtained by following formulae discovery,
wherein △ u ' v ' is colour cast amount, (u ', v ') be trichromatic coordinate, (u '
0, v '
0) be the 4th chromaticity coordinates.
Based on above-mentioned, due in the picture process of reality viewing display display, except except positive apparent direction viewing, side such as left side apparent direction or the viewing of right side apparent direction may not be fixed on, but both can in left side apparent direction, can watch in right side apparent direction again, based on this, in order to make display display effect better, then need to ensure that left side is depending on identical with the color that right side is looked on symmetry direction, in order to head it off, first need to know that left side is depending on looking the colour cast amount of color distortion on symmetry direction and the two relative positive apparent direction with right side, then carry out adjustment as the follow-up picture to display display and reference is provided.
Based on this, in embodiments of the present invention, the second chromaticity coordinates obtaining the pure color picture of display display in side-looking direction in step S101 can be specifically: the second chromaticity coordinates obtaining the pure color picture of display display in left side apparent direction and right side apparent direction respectively; Wherein, apparent direction positive apparent direction relative to right side apparent direction in left side is symmetrical.
Herein, what obtain in left side apparent direction and right side apparent direction is the second chromaticity coordinates of the same position such as center of the pure color picture of display display.The angle of left side apparent direction positive apparent direction relative to right side apparent direction can be any angle, such as, can be 30 °, 45 °, 60 ° etc.
On this basis, step S102 is specifically as follows: the second chromaticity coordinates obtained according to left side apparent direction, obtains the color under the apparent direction of left side; According to the second chromaticity coordinates that right side apparent direction obtains, obtain the color under the apparent direction of right side.
Wherein, after obtaining the second chromaticity coordinates under the apparent direction of left side, color under aforesaid way one or mode two can be utilized to obtain left side apparent direction, after obtaining the second chromaticity coordinates under the apparent direction of right side, the color under aforesaid way one or mode two can be utilized to obtain right side apparent direction.Preferably or all adopt mode one, or all adopt mode two.
Preferably, the color under the color under the apparent direction of left side and right side apparent direction is compared, obtain the color distortion under left side apparent direction and right side apparent direction.
By obtaining the color under the apparent direction of left side and the color under the apparent direction of right side respectively, can contrast the color under left side apparent direction and right side apparent direction very intuitively, researchist can be convenient to adjust the color under left side apparent direction and right side apparent direction, to make the solid colour under left side apparent direction and right side apparent direction.
Step S103 is specifically as follows: the second chromaticity coordinates obtained according to the first chromaticity coordinates and left side apparent direction, obtains the colour cast amount of the relatively positive apparent direction of left side apparent direction; According to the second chromaticity coordinates that the first chromaticity coordinates and right side apparent direction obtain, obtain the colour cast amount of the relatively positive apparent direction of right side apparent direction.
Wherein, the concrete grammar obtaining the colour cast amount of the relatively described positive apparent direction of left side apparent direction can be: be first converted in CIE1976 colorimetric system by the second chromaticity coordinates that the first chromaticity coordinates obtained in CIE1931 colorimetric system and left side apparent direction obtain and characterize, obtain trichromatic coordinate and the 4th chromaticity coordinates, then bring trichromatic coordinate and the 4th chromaticity coordinates into formula
the colour cast amount of the relatively positive apparent direction of left side apparent direction can be calculated.
Same, the concrete grammar obtaining the colour cast amount of the relatively described positive apparent direction of right side apparent direction can be: be first converted in CIE1976 colorimetric system by the second chromaticity coordinates that the first chromaticity coordinates obtained in CIE1931 colorimetric system and right side apparent direction obtain and characterize, obtain trichromatic coordinate and the 4th chromaticity coordinates, then bring trichromatic coordinate and the 4th chromaticity coordinates into formula
the colour cast amount of the relatively positive apparent direction of right side apparent direction can be calculated.
The embodiment of the present invention is by obtaining the colour cast amount of left side apparent direction positive apparent direction relative to right side apparent direction respectively, the colour cast amount of researchist to left side apparent direction positive apparent direction relative to right side apparent direction can be convenient to adjust, to make the colour cast amount of the relatively positive apparent direction of left side apparent direction and right side apparent direction identical.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can have been come by the hardware that programmed instruction is relevant, aforesaid program can be stored in a computer read/write memory medium, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (9)
1. a characterizing method for colour cast, is characterized in that, comprising:
Obtain the first chromaticity coordinates of the pure color picture of display display in positive apparent direction, and obtain the second chromaticity coordinates of the pure color picture of described display display in side-looking direction;
According to described second chromaticity coordinates, obtain the color under side-looking direction;
According to described first chromaticity coordinates and described second chromaticity coordinates, obtain the colour cast amount of the relatively positive apparent direction in side-looking direction.
2. the characterizing method of colour cast according to claim 1, is characterized in that, described pure color picture is white picture.
3. the characterizing method of colour cast according to claim 2, is characterized in that, described first chromaticity coordinates and described second chromaticity coordinates adopt CIE1931 colorimetric system to characterize;
According to described second chromaticity coordinates, obtain the color under side-looking direction, comprising:
According to the chromaticity coordinates of the standard white light in described second chromaticity coordinates and CIE1931 colorimetric system, obtain the color under side-looking direction.
4. the characterizing method of colour cast according to claim 3, is characterized in that, according to the chromaticity coordinates of the standard white light in described second chromaticity coordinates and CIE1931 colorimetric system, obtains the color under side-looking direction, comprising:
The chromaticity coordinates of the standard white light in CIE1931 colorimetric system is connected with described second chromaticity coordinates, and extend to described second chromaticity coordinates direction until with the visible light curve intersection of CIE1931 colorimetric system, the intersection point obtained is the wavelength that described second chromaticity coordinates is corresponding;
According to described wavelength, obtain the color under side-looking direction.
5. the characterizing method of colour cast according to claim 3, is characterized in that, according to the chromaticity coordinates of the standard white light in described second chromaticity coordinates and CIE1931 colorimetric system, obtains the color under side-looking direction, comprising:
With the chromaticity coordinates of the standard white light in CIE1931 colorimetric system for starting point, do straight line left in the horizontal direction, this straight line is defined as 0 ° of datum line;
By the chromaticity coordinates line of the standard white light in described second chromaticity coordinates and CIE1931 colorimetric system, the angle of this line and 0 ° of datum line is θ;
According to the scope of described θ, obtain the color under side-looking direction.
6. the characterizing method of colour cast according to claim 3, it is characterized in that, the first chromaticity coordinates of the white picture of display display is obtained in positive apparent direction, and after side-looking direction obtains the second chromaticity coordinates of the white picture of described display display, according to described first chromaticity coordinates and described second chromaticity coordinates, before obtaining the colour cast amount of the relatively positive apparent direction in side-looking direction, described method also comprises:
Described first chromaticity coordinates and described second chromaticity coordinates are converted in CIE1976 colorimetric system and characterize, obtain trichromatic coordinate and the 4th chromaticity coordinates respectively;
According to described first chromaticity coordinates and described second chromaticity coordinates, obtain the colour cast amount of the relatively positive apparent direction in side-looking direction, comprising:
Be converted to the trichromatic coordinate and the 4th chromaticity coordinates that obtain in CIE1976 colorimetric system according to described first chromaticity coordinates and described second chromaticity coordinates, pass through formula
Calculate colour cast amount;
Wherein, △ u ' v ' is colour cast amount, (u ', v ') be trichromatic coordinate, (u '
0, v '
0) be the 4th chromaticity coordinates.
7. the characterizing method of the colour cast according to any one of claim 1-6, is characterized in that, obtains the second chromaticity coordinates of the pure color picture of described display display, comprising in side-looking direction:
The second chromaticity coordinates of the pure color picture of described display display is obtained respectively in left side apparent direction and right side apparent direction; Wherein, apparent direction positive apparent direction relative to described right side apparent direction in described left side is symmetrical;
According to described second chromaticity coordinates, obtain the color under side-looking direction, comprising:
According to described second chromaticity coordinates that described left side apparent direction obtains, obtain the color under the apparent direction of described left side; According to described second chromaticity coordinates that described right side apparent direction obtains, obtain the color under the apparent direction of described right side;
According to described first chromaticity coordinates and described second chromaticity coordinates, obtain the colour cast amount of the relatively positive apparent direction in side-looking direction, comprising:
According to described second chromaticity coordinates that described first chromaticity coordinates and described left side apparent direction obtain, obtain the colour cast amount of the relatively described positive apparent direction of described left side apparent direction; According to described second chromaticity coordinates that described first chromaticity coordinates and described right side apparent direction obtain, obtain the colour cast amount of the relatively described positive apparent direction of described right side apparent direction.
8. the characterizing method of colour cast according to claim 7, is characterized in that, described method also comprises:
Color under color under the apparent direction of left side and right side apparent direction is compared, obtains the color distortion under left side apparent direction and right side apparent direction.
9. the characterizing method of the colour cast according to any one of claim 1-6, it is characterized in that, obtain the first chromaticity coordinates of the pure color picture of display display in positive apparent direction, and obtain the second chromaticity coordinates of the pure color picture of described display display in side-looking direction, comprising:
Obtain the first chromaticity coordinates of the pure color picture center of display display in positive apparent direction, and obtain the second chromaticity coordinates of the pure color picture center of described display display in side-looking direction.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108230406A (en) * | 2018-01-02 | 2018-06-29 | 联想(北京)有限公司 | Data processing method and electronic equipment |
| CN112559949A (en) * | 2021-02-26 | 2021-03-26 | 杭州罗莱迪思科技股份有限公司 | Method and device for measuring dominant wavelength and purity of LED lamp and electronic equipment |
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| CN112908260A (en) * | 2021-03-30 | 2021-06-04 | 合肥维信诺科技有限公司 | Compensation method, compensation device and compensation system of display panel |
| CN114739644A (en) * | 2022-06-10 | 2022-07-12 | 武汉精立电子技术有限公司 | Method, device and equipment for judging color cast and readable storage medium |
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