CN100351895C - Method for regulating display color of display device - Google Patents
Method for regulating display color of display device Download PDFInfo
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- CN100351895C CN100351895C CNB2005100202409A CN200510020240A CN100351895C CN 100351895 C CN100351895 C CN 100351895C CN B2005100202409 A CNB2005100202409 A CN B2005100202409A CN 200510020240 A CN200510020240 A CN 200510020240A CN 100351895 C CN100351895 C CN 100351895C
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Abstract
The present invention discloses a method for regulating the display color of a display device. Each picture element which is input with an image signal is distributed to the corresponding brightness level, and six kinds of the base color of the display device are respectively regulated on different brightness levels. The six kinds of the base color are composed of three kinds of the primary color of red, green and blue, and three new kinds of base color. The three kinds of new base color are generated by the mutual match of the three kinds of the primary color according to fixed color matching proportion. The regulation of one of the new base color is equivalent to the simultaneous regulation of two kinds of corresponding primary color according to the fixed proportion. The present invention has the advantages that the six kinds of the base color are used for regulation, the new base color can be used for the regulation as for middle color which is difficult to judge which primary color is used for the regulation when the display device is corrected due to the new added three kinds of base color respectively among the primary color. The fine regulation mode conforms to the visual habit of people, and abstract non-linear curve regulation is changed to be visual and precise.
Description
[technical field]
The present invention relates to the television image treatment technology, be specifically related to a kind of method of adjustment of display color of display device.
[background technology]
The development of digital television broadcasting in recent years is very swift and violent, developed countries such as the U.S., Japan, Europe have entered the digitized stage of the television broadcasting of carrying out in an all-round way, the U.S. not only is devoted to increase the program of high definition digital television, and be decided by to break in 2006 simulated television comprehensively, and China's wired digital TV in high resolution in numerous big and medium-sized cities has started broadcasting, and is determined at 2015 years simultaneously and breaks simulated television comprehensively.Because the transmission of Digital Television can cause damage hardly to program quality, so the user can almost be equal to the signal quality of studio at home.But, the televisor of selling on the present market (particularly adopt the televisor of new display spare, as LCDTV, PDPTV, DLPTV ...), because variety of problems can not show in high quality.
Most chromatic display is the red, green, blue that is shown different proportion by the three primary colors red, green, blue display unit of additive color mixing, reaches by the characteristic implementation space colour mixture of human eye then that coloured image shows.The input signal that also is display device is the Red Green Blue signal.In decades, in order to improve the television image quality, industry is improved " three primary colors " video picture and treatment technology constantly, has obtained very big progress.In colour TV manufacturing enterprise, because Market competition, often same type need cooperate different display screens, but the characteristic difference of different display screens, such as the color rendering scope, so, to keep the product white balance unanimity of dispatching from the factory in this way, will carry out adjustment, the color rendering scope of sacrificing some display screen is to reach the consistance of white balance.All the time, the method that above-mentioned adjustment is adopted all is respectively the Red Green Blue of display device to be adjusted, and realizes by adjusting its corresponding gamma correction curve usually.But because the display device photoelectric characteristic is non-linear, and three primary colors adjustment and the picture rich colors problem that is difficult to intuitively carry out related judgement between changing, cause such adjustment mode to be difficult to take into account the accuracy and the whole white balance problem of the color rendering of brightness at different levels, make display device can't reach desirable picture effect.
[summary of the invention]
The technical problem to be solved in the present invention provides a kind of method of intuitively and effectively the deviation of display device color rendering being adjusted and being compensated.
For achieving the above object, the technical solution adopted in the present invention is that the method for adjustment of the display color of display device is gone into corresponding brightness degree with each pixel branch of input image signal; Six-basic-color to display device on different brightness degrees is adjusted respectively, described six-basic-color is made up of Red Green Blue and three new primary colours, these three new primary colours are three primary colors to be arranged in pairs or groups respectively in twos according to fixing color matching ratio produce, and are equivalent to two kinds of primary colors of its correspondence are adjusted simultaneously according to described fixed proportion when one of described new primary colours are adjusted.
Preferably, described three new primary colours are respectively: red, the green yellow that produces according to the ratio collocation that respectively accounts for 50%; Green, the blue cyan that produces according to the ratio collocation that respectively accounts for 50%; Red, the blue magenta that produces according to the ratio collocation that respectively accounts for 50%.
Described brightness degree can be divided according to the brightness changing capability of display device; Generally can be divided into 64 grades.
The present invention adopts technique scheme, useful effect is: 1) adopt six-basic-color to regulate, owing to increased by three kinds of new primary colours between each primary colors respectively, make display device is being carried out timing, can use new primary colours and regulate for being difficult to judge the employed intermediate color that adopt which kind of primary colors to adjust, the regulative mode of this refinement meets people's visual custom more, and abstract nonlinear curve is regulated become directly perceived and accurate.2) color that preferably produces by three primary colors equivalent collocation in twos is new primary colours, be because they are respectively that (yellow is blue complementary color for the complementary color of three kinds of primary colors, cyan is red complementary color, magenta is green complementary color) can visually accomplish and both enrich dull primary colors, make adjustable primary colours contain wide Color Range, with existing primary colors striking contrast and difference are arranged again, make to be more prone to select the primary colours that to adjust.3) brightness degree is divided into 64 grades, the difficulty that fully takes into account the meticulous adjustment that brings of classification increases and is little to the visuality influence, and problem such as the adjustment that excessively slightly brings of classification is accurate inadequately, is relatively more suitable branch number of stages.
Below by embodiment also in conjunction with the accompanying drawings, the present invention is described in further detail:
[Figure of description]
Fig. 1 is the Mang Saier colorimeter system.
Fig. 2 is that diagram is discussed in Newton color circle and prediction thereof.
Fig. 3 (a)～(c) is that one group of test picture is at the design sketch that shows on the display device after the conventional adjustment.
Fig. 4 (a)～(c) is that test picture among Fig. 1 is at the design sketch that shows on the display device after the six-basic-color adjustment.
[embodiment]
The method of adjustment of the display color of display device is gone into corresponding brightness degree with each pixel branch of input image signal, and described brightness degree is divided according to the brightness changing capability of display device, in general can be divided into 64 grades; Six-basic-color to display device on different brightness degrees is adjusted respectively, described six-basic-color is made up of red, green, blue (R=Red, G=Green, B=Blue) three primary colors and three new primary colours, and these three new primary colours are respectively: red, the green yellow (Y=Yellow) that produces according to the ratio collocation that respectively accounts for 50%; Green, the blue cyan (C=Cyan) that produces according to the ratio collocation that respectively accounts for 50%; Red, the blue magenta (M=Magenta) that produces according to the ratio collocation that respectively accounts for 50% is equivalent to two kinds of primary colors of its correspondence are adjusted simultaneously according to described fixed proportion when one of described new primary colours are adjusted.
The principle that adopts said method to carry out color adjustment is: each pixel all includes tone (hue), saturation degree (saturation), three kinds of signals of brightness (brightness), the source of 3D notion that Here it is, can be expressed as Mang Saier colorimeter system (Munsell Color System, the point in as shown in Figure 1).The longitudinal axis is represented brightness among Fig. 1, can be by dark to showing the score to multistage, and the xsect of each gray scale is a Newton color circle, as shown in Figure 2.To circumference, saturation degree strengthens successively from the center of Newton color circle, and along the circumference of ring, tone changes between Red Green Blue.Various colors are deferred to following prediction with the relation of primary colors and discussed: 1, the colour of the previous generation of line mutually of two primary colours table is considered to the color mixture of two kinds of primary colours, such as: the green of equivalent and the yellow a of red generation, the yellow saturation degree of this point is lower than the saturation degree of its end points, because the more close central point of this point; 2, red and its complementary colors cyan of equivalent mutually mixing energy obtain white or monochromatic ash, more redness then generates the red or pinkish red of low saturation; 3, the colored c that mix to generate with proper proportion of blueness and spectrum colour b can be considered to sensuously be equal to and the spectrum colour of same hue d be arranged and saturation degree is lower slightly.
As seen from Figure 2, three primary colors have very wide excessive hue regions between separately, being difficult to intuitive judgment for color a kind of and that keep clear of three kinds of primary colors goes out and need reach the purpose that it is adjusted by regulating which kind of primary colors, and increase after the new primary colours, make contrast and selection become more directly perceived and accurate.
In the above-mentioned process that six-basic-color is adjusted respectively, can adopt the method for normal pictures contrast, the normal pictures of selecting enough rich colors details of having of sufficient amount and luminance level for use is as the foundation of adjusting, the image and the normal pictures that show are compared, unfavorable colour on each luminance plane is found out, judge its most approaching any primary colours, then corresponding primary colours are strengthened or weaken, repeat the process of above-mentioned judgement and correction.In actual mechanical process, can adopt earlier conventional R/G/B gamma curve proofread and correct and the white balance adjustment after carry out further colour correction with six-basic-color again.Because above-mentioned adjustment process is the adjusting that becomes more meticulous to color error ratio, therefore can be similar to the operation of each primary colours in the six-basic-color and regard as independently, for example, the enhancing of yellow primary colours or other five kinds of dominant hues of weakening not display frame are exerted an influence (though be actually red, green two kinds of primary colors carry out the enhancing that degree reduces by half simultaneously or weaken, but on people's visual effect, because the adjusting to primary colors is that degree reduces by half, therefore simple red or near red and simple influence green and nearly green tint almost is difficult for discovering, and only to simple Huang or the nearly yellow color relatively significantly influence that produces), therefore the adjusting of carrying out with this kind method has directly perceived and accurate effect.
The color of selecting in the above-described embodiments to produce by three primary colors equivalent collocation in twos is new primary colours, be because they are respectively that (yellow is blue complementary color for the complementary color of three kinds of primary colors, cyan is red complementary color, magenta is green complementary color) can visually accomplish and both enrich dull primary colors, make adjustable primary colours contain wide Color Range, with existing primary colors striking contrast and difference are arranged again, make to be more prone to select the primary colours that to adjust.Also can adjust the formation ratio of new primary colours, as long as can meet people's visual custom, it is just passable to play the effect of enriching adjustable integral basis look.Even also can increase new number of primary colors, and but because newly-increased primary colours are the fixed proportion of two kinds of primary colors all the time mixes, it is loaded down with trivial details and chaotic that too much primary colours also can cause adjusting, therefore the number of six kinds of primary colours is comparatively suitable.
The contrast experiment: the S42SD-YD05 plasma module of selecting Samsung SDI company to produce is a display device for the treatment of adjustment
1, elder generation carries out correction of R/G/B gamma curve and white balance adjustment according to the adjusting process of routine to this display device, and one group of test picture is shown that on the equipment after the above-mentioned conventional adjustment image that obtains is shown in Fig. 3 (a)～(c).
2, by the inventive method described display device is carried out the color adjustment, finish the above-mentioned test picture of reproduction on the adjusted display device, the image that obtains is shown in Fig. 4 (a)～(c).Comparison diagram 3 (a) and Fig. 4 (a) be the picture through demonstrating after the six-basic-color adjustment as can be seen, and blue sky is more blue, and the meadow is more green; By Fig. 3 (b) and Fig. 4 (b) as can be seen, image is vivid more transparent; By Fig. 3 (c) and Fig. 4 (c) as can be seen, the rays of sunlight are more bright.
Claims (4)
1, a kind of method of adjustment of display color of display device is gone into corresponding brightness degree with each pixel branch of input image signal; Six-basic-color to display device on different brightness degrees is adjusted respectively, described six-basic-color is made up of Red Green Blue and three new primary colours, these three new primary colours are three primary colors to be arranged in pairs or groups respectively in twos according to fixing color matching ratio produce, and are equivalent to two kinds of primary colors of its correspondence are adjusted simultaneously according to described fixed proportion when one of described new primary colours are adjusted.
2, the method for adjustment of the display color of display device according to claim 1 is characterized in that: described three new primary colours are respectively: red, the green yellow that produces according to the ratio collocation that respectively accounts for 50%; Green, the blue cyan that produces according to the ratio collocation that respectively accounts for 50%; Red, the blue magenta that produces according to the ratio collocation that respectively accounts for 50%.
3, the method for adjustment of the display color of display device according to claim 1 and 2 is characterized in that: described brightness degree is divided according to the brightness changing capability of display device.
4, the method for adjustment of the display color of display device according to claim 3 is characterized in that: it is 64 grades that described brightness degree is divided into.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100202409A CN100351895C (en) | 2005-01-17 | 2005-01-17 | Method for regulating display color of display device |
| PCT/CN2005/000972 WO2006074584A1 (en) | 2005-01-17 | 2005-07-04 | A method for improving the display effect of display device |
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| CNB2005100202409A CN100351895C (en) | 2005-01-17 | 2005-01-17 | Method for regulating display color of display device |
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| CN1694155A CN1694155A (en) | 2005-11-09 |
| CN100351895C true CN100351895C (en) | 2007-11-28 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100409306C (en) * | 2006-03-31 | 2008-08-06 | 深圳创维－Rgb电子有限公司 | Method of displaying color for optimizing display device |
| CN102254541A (en) * | 2011-08-01 | 2011-11-23 | 南京Lg新港显示有限公司 | Method for realizing picture color adjustment of display |
| CN103634580B (en) * | 2013-12-19 | 2016-05-25 | 敦泰科技有限公司 | A kind of colour gamut method of adjustment and device of coloured image |
| CN107977999B (en) * | 2017-12-04 | 2021-01-08 | 北京百度网讯科技有限公司 | Intelligent color taking method and device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6008912A (en) * | 1997-06-20 | 1999-12-28 | Matsushita Graphic Communication Systems, Inc. | Image processing device |
| US6262744B1 (en) * | 1996-05-07 | 2001-07-17 | Barco N.V. | Wide gamut display driver |
| CN1428763A (en) * | 2001-12-21 | 2003-07-09 | 夏普株式会社 | Correction property detemining device, method and display device |
| CN1505391A (en) * | 2002-11-29 | 2004-06-16 | Tcl王牌电子(深圳)有限公司 | Picture tone adjusting method for picture display device |
| CN1742304A (en) * | 2003-01-28 | 2006-03-01 | 皇家飞利浦电子股份有限公司 | Optimal subpixel arrangement for displays with more than three primary colors |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6262744B1 (en) * | 1996-05-07 | 2001-07-17 | Barco N.V. | Wide gamut display driver |
| US6008912A (en) * | 1997-06-20 | 1999-12-28 | Matsushita Graphic Communication Systems, Inc. | Image processing device |
| CN1428763A (en) * | 2001-12-21 | 2003-07-09 | 夏普株式会社 | Correction property detemining device, method and display device |
| CN1505391A (en) * | 2002-11-29 | 2004-06-16 | Tcl王牌电子(深圳)有限公司 | Picture tone adjusting method for picture display device |
| CN1742304A (en) * | 2003-01-28 | 2006-03-01 | 皇家飞利浦电子股份有限公司 | Optimal subpixel arrangement for displays with more than three primary colors |
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