CN101201470A - Method for correcting color of liquid crystal panel and system thereof - Google Patents
Method for correcting color of liquid crystal panel and system thereof Download PDFInfo
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- CN101201470A CN101201470A CNA2006101693309A CN200610169330A CN101201470A CN 101201470 A CN101201470 A CN 101201470A CN A2006101693309 A CNA2006101693309 A CN A2006101693309A CN 200610169330 A CN200610169330 A CN 200610169330A CN 101201470 A CN101201470 A CN 101201470A
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Abstract
The invention discloses a color correction method of a liquid crystal panel and a system thereof, wherein, the tone of the picture displayed by the liquid crystal panel is determined by color brightness of various colors according to scale. The invention measures whether any of the scale value of the color brightness of each color is not in the preset range of the corresponding ideal brightness scale value in a display picture of the liquid crystal panel and then when at least any of the scale values of color brightness is not in the preset range of the corresponding ideal brightness scale value, each scale value of color brightness is multiplied by the corresponding correction coefficient to acquire the newest scale value of color brightness, therefore, the updated scale value of color brightness presents an ideal brightness ratio and the ideal brightness ratio is the ratio presented by the scale value of the ideal brightness of each color.
Description
Technical field
The present invention is relevant for a kind of bearing calibration and system thereof, and is particularly to a kind of color correcting method and system thereof of liquid crystal panel.
Background technology
Though present liquid crystal panel (liquid crystal display panel, abbreviation LCD panel) supplier has more than tens of families, yet because each chroma-luminance of the liquid crystal panel that different supplier provided (is trichromatic chroma-luminancees such as red, green, blue, just general so-called R, G, B chroma-luminance) be not quite similar, therefore the picture that liquid crystal panel presented that provides of different suppliers tends to make because trichromatic brightness specifications is different also and then difference of its color quality.
Thus, just the manufacturer to LCD (display) has caused great puzzlement, its reason is: display manufacturer is often considered based on coml and is used arrange in pairs or groups different suppliers' liquid crystal panel of identical main control system plate, yet so do and make the quality of display color quality also, also often depend on the liquid crystal panel, and then cause the color quality of the display that manufacturing comes out very different.
For instance, generally for liquid crystal panel, the tone of the picture that it is shown is to be determined according to ratio by trichromatic chroma-luminance, and this ratio should present a desirable brightness ratio ideally, but most liquid crystal panel but all can't provide to such ratio.Thereby in the middle of the liquid crystal panel that all suppliers are provided at present, the blue chroma-luminance ratio value of the liquid crystal panel that has is on the low side, therefore often cause when picture need present the color of sky, the sky color relation that this kind liquid crystal panel is presented is white partially, yet the blue chroma-luminance ratio value of the liquid crystal panel that has is higher, therefore often cause when picture need present the color of sky, the sky color relation that this kind liquid crystal panel is presented is blue partially.
Therefore, how the three primary colors chroma-luminance adjustment of the liquid crystal panel that different suppliers are provided is to same desirable brightness ratio, the color quality of the liquid crystal panel of different labels can be reached unanimity, and is the important topic that all liquid crystal display manufacturers must make great efforts to break through.Moreover, user for display, the quality of picture quality usually depends on three primary colors phase colour mixtures such as red, green and blue and the color that produces, this factor tends to determine user's purchase intention, and for making the computer or the manufacturer of LCD TV, whether this factor or even decision import the key factor of second supplier (second source).
Summary of the invention
Purpose of the present invention just provides a kind of color correcting method and system thereof of liquid crystal panel, and it can be with the desirable brightness ratio of three primary colors chroma-luminance adjustment to of liquid crystal panel.
A further object of the present invention provides a kind of color correcting method and system thereof of liquid crystal panel, and it can make the color quality of the liquid crystal panel of different labels reach unanimity.
Based on above-mentioned and other purpose, the present invention proposes a kind of color correcting method of liquid crystal panel, and wherein the tone of the shown picture of liquid crystal panel is that chroma-luminance by different colours determines according to ratio.This color correcting method comprises that measurement is in a display frame, whether the chroma-luminance ratio value of each color has any not in the preset range of the desirable brightness ratio value of correspondence, and the pairing desirable brightness ratio value of wherein above-mentioned color presents desirable brightness ratio.Then, in the time of in having arbitrary not preset range in the above-mentioned chroma-luminance ratio value at least, then each chroma-luminance ratio value is multiplied by separately corresponding correction coefficient, to obtain up-to-date chroma-luminance ratio value in the desirable brightness ratio value of correspondence.At last, present display frame according to up-to-date chroma-luminance ratio value.
Based on above-mentioned and other purpose, the present invention proposes a kind of color calibration system of liquid crystal panel, and wherein the tone of the shown picture of liquid crystal panel is that chroma-luminance by different colours determines according to ratio.This color calibration system comprises the brightness sensing apparatus and judges correcting device.The brightness sensing apparatus is in order to the chroma-luminance of each color of sensing liquid crystal panel, to obtain the chroma-luminance ratio value of each color.Judge whether correcting device has any not in the preset range of the desirable brightness ratio value of correspondence in order to the chroma-luminance ratio value of judging each color, in the time of in having arbitrary not preset range in the above-mentioned chroma-luminance ratio value at least in the desirable brightness ratio value of correspondence, then each chroma-luminance ratio value is multiplied by separately corresponding correction coefficient, to obtain up-to-date chroma-luminance ratio value, make liquid crystal panel to present display frame according to up-to-date chroma-luminance ratio value.The pairing desirable brightness ratio value of wherein above-mentioned color presents desirable brightness ratio.
Color correcting method according to the described liquid crystal panel of preferred embodiment of the present invention, it also comprises judges whether up-to-date chroma-luminance ratio value presents desirable brightness ratio, when up-to-date chroma-luminance ratio value presents desirable brightness ratio, then present display frame according to up-to-date chroma-luminance ratio value, when up-to-date chroma-luminance ratio value can't present desirable brightness ratio, then continue to revise above-mentioned chroma-luminance ratio value.
According to the color correcting method of the described liquid crystal panel of preferred embodiment of the present invention, it also comprises Basic Input or Output System (BIOS) (Basic Input/0utputSystem the is called for short BIOS) chip that up-to-date chroma-luminance ratio value is burned onto liquid crystal panel.
Color calibration system according to the described liquid crystal panel of preferred embodiment of the present invention, wherein this is judged that the operation of correcting device also comprises and judges whether up-to-date chroma-luminance ratio value presents desirable brightness ratio, when up-to-date chroma-luminance ratio value presents desirable brightness ratio, then make liquid crystal panel to present display frame according to up-to-date chroma-luminance ratio value, when up-to-date chroma-luminance ratio value can't present desirable brightness ratio, then continue to revise above-mentioned chroma-luminance ratio value.
According to the color calibration system of the described liquid crystal panel of preferred embodiment of the present invention, it also comprises burning device.This burning device is in order to be burned onto up-to-date chroma-luminance ratio value the BIOS chip of liquid crystal panel, so that liquid crystal panel can present display frame according to up-to-date chroma-luminance ratio value.
According to the color correcting method and the system thereof of the described liquid crystal panel of preferred embodiment of the present invention, above-mentioned the value in the desirable brightness ratio of correspondence comprises 80% of the desirable brightness ratio value that is lower than correspondence in the preset range.
Color correcting method and system thereof according to the described liquid crystal panel of preferred embodiment of the present invention, wherein those correction coefficient of chroma-luminance ratio value that are higher than desirable brightness ratio value 80% are less than 1 and greater than 0, and those correction coefficient that are lower than the chroma-luminance ratio value of desirable brightness ratio value 80% equal 1.
According to the color correcting method and the system thereof of the described liquid crystal panel of preferred embodiment of the present invention, above-mentioned color comprises redness, blue and green.
The present invention is because in the display frame of permeametry liquid crystal panel, whether the chroma-luminance ratio value of each color has any not in the preset range of the desirable brightness ratio value of correspondence.Then, in the time of in having arbitrary not preset range in the above-mentioned chroma-luminance ratio value at least in the desirable brightness ratio value of correspondence, then each chroma-luminance ratio value is multiplied by separately corresponding correction coefficient, to obtain up-to-date chroma-luminance ratio value, and then make above-mentioned each chroma-luminance ratio value after upgrading present desirable brightness ratio, and this desirable brightness ratio ratio that to be exactly the desirable brightness ratio value of above-mentioned each color presented.Therefore, the three primary colors chroma-luminance adjustment of the liquid crystal panel that the present invention can provide different suppliers can reach unanimity the color quality of the liquid crystal panel of different labels to same desirable brightness ratio.
For above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, preferred embodiment cited below particularly, and conjunction with figs. is described in detail below.
Description of drawings
Fig. 1 is the process flow diagram according to the color correcting method of one embodiment of the invention.
Fig. 2 is the device calcspar according to the color calibration system of one embodiment of the invention.
Embodiment
Fig. 1 is the process flow diagram according to the color correcting method of one embodiment of the invention.Please refer to Fig. 1, the method flow process mainly is to be used for the shown color of correcting liquid crystal panel.Certainly, what the liquid crystal panel of being proofreaied and correct was shown is colour picture, and is that chroma-luminance with three kinds of different primitive color lights such as red, green and indigo plants presents display frame, determines according to ratio and the tone of display frame is a chroma-luminance by above-mentioned three kinds of primitive color lights.
When beginning to carry out the measurement (step 110) of liquid crystal panel, at first to measure this liquid crystal panel in a display frame, whether the chroma-luminance ratio value of each color has any not in the preset range of the desirable brightness ratio value of correspondence (step 120), and the pairing desirable brightness ratio value of wherein above-mentioned color presents desirable brightness ratio.Then, when neither one in the above-mentioned chroma-luminance ratio value is not in the preset range in the desirable brightness ratio value of correspondence, just directly come display frame (step 160) according to the chroma-luminance ratio value.Yet in the time of in having arbitrary not preset range in the above-mentioned chroma-luminance ratio value at least, each chroma-luminance ratio value is multiplied by corresponding correction coefficient separately, to obtain up-to-date chroma-luminance ratio value (step 130) in the desirable brightness ratio value of correspondence.
Then, continue to judge whether up-to-date chroma-luminance ratio value presents desirable brightness ratio (step 140).When up-to-date chroma-luminance ratio value can't present desirable brightness ratio, just continue to revise above-mentioned chroma-luminance ratio value (promptly getting back to step 130).When up-to-date chroma-luminance ratio value presents desirable brightness ratio, then up-to-date chroma-luminance ratio value is burned onto the BIOS chip (step 150) of liquid crystal panel.At last, make liquid crystal panel to present display frame (step 160) according to up-to-date chroma-luminance ratio value, this trimming process (step 170) just is through with.
In order to make explanation more clear and easy to understand, trichromatic desirable brightness ratio values such as the following red, green, blue of hypothesis earlier respectively are 0.201,0.656,0.141, just red: green: blue=0.201: 0.656: 0.141, and the trichromatic chroma-luminance ratio values such as red, green, blue of the liquid crystal panel that institute's desire is proofreaied and correct are respectively 0.212,0.701,0.08, and are just red: green: blue=0.212: 0.701: 0.08.In addition, suppose again " not to be worth in the preset range " in the above-mentioned steps 120 and just be meant and be lower than 80% of corresponding desirable brightness ratio value in its desirable brightness ratio.Under the preceding topic of these hypothesis,, can design a color calibration system accordingly, as shown in Figure 2 in order to reach the purpose of the described method of Fig. 1.Fig. 2 is the device calcspar according to the color calibration system of one embodiment of the invention.
Please refer to Fig. 2, this color calibration system is used for correcting liquid crystal panel 210.As shown in FIG., color calibration system comprises brightness sensing apparatus 220, judges correcting device 230 and burning device 240.Brightness sensing apparatus 220 is in order to the trichromatic chroma-luminancees such as red, green and indigo plant of sensing liquid crystal panel 210, to obtain the chroma-luminance ratio value of each color.Then, judgement correcting device 230 just judges among the trichromatic chroma-luminance ratio values such as red, green and indigo plant whether have any to be lower than 80% of corresponding desirable brightness ratio value.
In above-mentioned judged result, have only blue eligible, judge that so correcting device 230 will be multiplied by different correction coefficient separately with red with green chroma-luminance ratio value, and these correction coefficient are all less than 1 and greater than 0, to obtain the up-to-date chroma-luminance ratio value of red and green these two primitive color lights.As for the chroma-luminance ratio value of blueness just the value of being multiplied by be 1 correction coefficient, just do not do change.Then, judge that correcting device 230 continues to judge that whether the up-to-date chroma-luminance ratio value of three primary colors such as red, green and indigo plant presents desirable brightness ratio, just presents aforesaid 0.201: 0.656: 0.141 again.
If the result who judges is for denying, judge that so correcting device 230 just is multiplied by different correction coefficient more separately with red with green chroma-luminance ratio value, and these correction coefficient are still less than 1 and greater than 0, as for the chroma-luminance ratio value of blueness still again the value of being multiplied by be 1 correction coefficient, to upgrade the chroma-luminance ratio value of redness, green and blue these three primitive color lights, the chroma-luminance ratio value after above-mentioned three primitive color lights upgrade presents desirable brightness ratio.Say concisely, above-mentioned operating process, its purpose is exactly to reduce chroma-luminance ratio values red and green these two primitive color lights, makes that the chroma-luminance ratio value after above-mentioned three primitive color lights renewal presents desirable brightness ratio.
At last, the chroma-luminance ratio value (being up-to-date chroma-luminance ratio value) that burning device 240 will meet desirable brightness ratio is burned onto the BIOS chip 212 in the liquid crystal panel 210, so that liquid crystal panel 210 can present display frame according to the chroma-luminance ratio value of burning in BIOS chip 212.
From the above, see through the present invention and implement colour correction, the three primary colors chroma-luminance adjustment of the liquid crystal panel that can easily different suppliers be provided same desirable brightness ratio extremely just, and then the color quality of the liquid crystal panel of different labels can be reached unanimity.Thus, liquid crystal display manufacturers just needn't be worried the very different problem of color quality of display again.
In addition, teaching by the foregoing description, this area has knows that usually the knowledgeable should know, the present invention is not limited to revise chroma-luminancees red and green these two primitive color lights, under other actual conditions, the present invention also can revise the central any primitive color light of three primitive color lights and the chroma-luminance of primitive color light number, just no longer repeats to give unnecessary details at this.In a word, so long as the chroma-luminance ratio value of primitive color light is revised, and then make the chroma-luminance ratio value of each primitive color light present desirable brightness ratio, be spirit according to the invention just.
In sum, the present invention is because in the display frame of permeametry liquid crystal panel, whether the chroma-luminance ratio value of each color has any not in the preset range of the desirable brightness ratio value of correspondence.Then, in the time of in having arbitrary not preset range in the above-mentioned chroma-luminance ratio value at least in the desirable brightness ratio value of correspondence, then each chroma-luminance ratio value is multiplied by separately corresponding correction coefficient, to obtain up-to-date chroma-luminance ratio value, and then make above-mentioned each chroma-luminance ratio value after upgrading present desirable brightness ratio, and this desirable brightness ratio ratio that to be exactly the desirable brightness ratio value of above-mentioned each color presented.Therefore, the three primary colors chroma-luminance adjustment of the liquid crystal panel that the present invention can provide different suppliers can reach unanimity the color quality of the liquid crystal panel of different labels to same desirable brightness ratio.With another viewpoint, the present invention also can improve user's purchase intention, and increases the competitive power of the LCD of display manufacturer manufacturing.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limiting the present invention, anyly has the knack of this skill person, without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention is when with being as the criterion that claim was defined.
Claims (12)
1. the color correcting method of a liquid crystal panel comprises the following steps:
Whether measurement a plurality of colors color brightness ratio value separately in a display frame has outside any preset range that falls within a corresponding desirable brightness ratio value, and wherein the pairing desirable brightness ratio value of those colors presents a desirable brightness ratio;
In the time of outside having arbitrary this preset range that falls within this corresponding ideal brightness ratio value in those chroma-luminance ratio values at least, then each those chroma-luminance ratio value is multiplied by separately a corresponding correction coefficient, to obtain a up-to-date chroma-luminance ratio value; And
Present a display frame according to this up-to-date chroma-luminance ratio value.
2. the color correcting method of liquid crystal panel as claimed in claim 1 is characterized in that, also comprises:
Judge whether this up-to-date chroma-luminance ratio value presents this ideal brightness ratio;
When this up-to-date chroma-luminance ratio value presents this ideal brightness ratio, then present this display frame according to this up-to-date chroma-luminance ratio value; And
When this up-to-date chroma-luminance ratio value can't present this ideal brightness ratio, then continue to revise those chroma-luminance ratio values.
3. the color correcting method of liquid crystal panel as claimed in claim 1 is characterized in that, also comprises a BIOS chip that this up-to-date chroma-luminance ratio value is burned onto liquid crystal panel.
4. the color correcting method of liquid crystal panel as claimed in claim 1 is characterized in that, comprises being lower than 80% of corresponding desirable brightness ratio value outside this preset range.
5. the color correcting method of liquid crystal panel as claimed in claim 4, it is characterized in that, those correction coefficient of chroma-luminance ratio value that are higher than desirable brightness ratio value 80% are less than 1 and greater than 0, and those correction coefficient that are lower than the chroma-luminance ratio value of desirable brightness ratio value 80% equal 1.
6. the color correcting method of liquid crystal panel as claimed in claim 1 is characterized in that, those colors comprise redness, blue and green.
7. the color calibration system of a liquid crystal panel, wherein the tone of the shown picture of this liquid crystal panel is that chroma-luminance by different colours determines that according to ratio this color calibration system comprises:
One brightness sensing apparatus is in order to the color brightness separately of a plurality of colors of sensing, to obtain the chroma-luminance ratio value of each color; And
One judges correcting device, whether have outside the arbitrary preset range that falls within a corresponding desirable brightness ratio value in order to the chroma-luminance ratio value of judging each color, arbitrary when falling within outside this preset range when having at least in those chroma-luminance ratio values, then each chroma-luminance ratio value is multiplied by separately corresponding correction coefficient, to obtain a up-to-date chroma-luminance ratio value, make this liquid crystal panel present this display frame according to this up-to-date chroma-luminance ratio value
Wherein the pairing desirable brightness ratio value of those colors presents a desirable brightness ratio.
8. the color calibration system of liquid crystal panel as claimed in claim 7 is characterized in that, the operation of this judgement correcting device also comprises:
Judge whether this up-to-date chroma-luminance ratio value presents this ideal brightness ratio;
When this up-to-date chroma-luminance ratio value presents this ideal brightness ratio, then make this liquid crystal panel present this display frame according to this up-to-date chroma-luminance ratio value; And
When this up-to-date chroma-luminance ratio value can't present this ideal brightness ratio, then continue to revise those chroma-luminance ratio values.
9. the color calibration system of liquid crystal panel as claimed in claim 7 is characterized in that, also comprises:
One burning device is in order to will this up-to-date chroma-luminance ratio value to be burned onto a BIOS chip of this liquid crystal panel, so that this liquid crystal panel can present this display frame according to this up-to-date chroma-luminance ratio value.
10. the color calibration system of liquid crystal panel as claimed in claim 7 is characterized in that, falls within to comprise outside this preset range and be lower than 80% of corresponding desirable brightness ratio value.
11. the color calibration system of liquid crystal panel as claimed in claim 10, it is characterized in that, those correction coefficient of chroma-luminance ratio value that are higher than desirable brightness ratio value 80% are less than 1 and greater than 0, and those correction coefficient that are lower than the chroma-luminance ratio value of desirable brightness ratio value 80% equal 1.
12. the color correcting method of liquid crystal panel as claimed in claim 7 is characterized in that, those colors comprise redness, blue and green.
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| CNA2006101693309A CN101201470A (en) | 2006-12-11 | 2006-12-11 | Method for correcting color of liquid crystal panel and system thereof |
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| CNA2006101693309A CN101201470A (en) | 2006-12-11 | 2006-12-11 | Method for correcting color of liquid crystal panel and system thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104036733A (en) * | 2013-03-04 | 2014-09-10 | 刘鸿达 | Display control method of display apparatus |
| CN106405900A (en) * | 2016-12-09 | 2017-02-15 | 武汉精测电子技术股份有限公司 | Method and device for measuring colors of liquid crystal screen |
| WO2018035691A1 (en) * | 2016-08-22 | 2018-03-01 | 华为技术有限公司 | Image processing method and apparatus |
| CN109509435A (en) * | 2017-09-14 | 2019-03-22 | 元太科技工业股份有限公司 | Display device |
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2006
- 2006-12-11 CN CNA2006101693309A patent/CN101201470A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104036733A (en) * | 2013-03-04 | 2014-09-10 | 刘鸿达 | Display control method of display apparatus |
| CN104036733B (en) * | 2013-03-04 | 2017-04-26 | 刘鸿达 | Display control method of display apparatus |
| WO2018035691A1 (en) * | 2016-08-22 | 2018-03-01 | 华为技术有限公司 | Image processing method and apparatus |
| CN109417616A (en) * | 2016-08-22 | 2019-03-01 | 华为技术有限公司 | Method and apparatus for image procossing |
| CN109417616B (en) * | 2016-08-22 | 2020-05-08 | 华为技术有限公司 | Method and apparatus for image processing |
| US10963996B2 (en) | 2016-08-22 | 2021-03-30 | Huawei Technologies Co., Ltd. | Image processing method and apparatus |
| CN106405900A (en) * | 2016-12-09 | 2017-02-15 | 武汉精测电子技术股份有限公司 | Method and device for measuring colors of liquid crystal screen |
| CN109509435A (en) * | 2017-09-14 | 2019-03-22 | 元太科技工业股份有限公司 | Display device |
| US11062644B2 (en) | 2017-09-14 | 2021-07-13 | E Ink Holdings Inc. | Display device |
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