CN101241690B - Display for color tracking algorithm based on built-in optical feature value - Google Patents
Display for color tracking algorithm based on built-in optical feature value Download PDFInfo
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- CN101241690B CN101241690B CN2007100075883A CN200710007588A CN101241690B CN 101241690 B CN101241690 B CN 101241690B CN 2007100075883 A CN2007100075883 A CN 2007100075883A CN 200710007588 A CN200710007588 A CN 200710007588A CN 101241690 B CN101241690 B CN 101241690B
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Abstract
The invention relates to an embedded color tracking algorithm display based on optical eigenvalue which comprises a display panel, a switch device, a storage unit and a color tracking unit. The optical eigenvalue of said display panel is measured by using an optical measuring instrument, and said optical eigenvalue is recorded in an optical comparison table and stored in said storage unit. And said color tracking unit generates color switch comparison table for color tracking according with said optical comparison table and color defined value. The display can reduce storage space for storingcolor switch comparison table, and reduces time cost greatly for tracking display color before production.
Description
Technical field
The present invention relates to a kind of display, and be particularly related to a kind of optical feature value of display panel and display that color is followed the tracks of mathematical algorithm of embedding.
Background technology
In recent years, color management is popular gradually, and the color of display is followed the tracks of and also begun to be much accounted of.Display can be different according to the user demand, provide the color mode of various different situations, such as bright-coloured, high brightness, high contrast or the like.When display shows different contents, for example when literal, image or film, need different color modes make its content be presented in display pannel rightly.The color mode of display is by one group of color definition value defined, the color definition value has a lot of projects, generally speaking, GTG and brightness relationship (Gamma) and colour temperature are projects important in the color definition value, and for example the sRGB pattern promptly is by Gamma2.2 and colour temperature 6500K definition.
The color of traditional monitor is followed the tracks of, and is the color that presents hope by the color conversion table of comparisons (Gamma table) that stores in the display.A kind of color mode needs a color conversion table of comparisons, therefore, if wish a display several different color modes is arranged, and then needs several color conversion tables of comparisons to be stored in the display, so that the user is switched different color modes.Color mode is defined by color definition value Gamma and colour temperature, and for instance, 5 groups Gamma value and 13 groups color temperature value can produce 65 kinds of color modes, then need store 65 color conversion tables of comparisons in display.
The related tool that color that present display is developed is followed the tracks of, its calculation mode is neither to be to judge or the software by computing machine calculates and finishes color and follow the tracks of by human eye with, major part; The former takes time and effort and out of true, though the latter comparatively saves time accurately, still needs a large amount of storage spaces to deposit several color conversion tables of comparisons.
Traditional software calculation color tracking mode, it is the optical feature value of measuring display pannel earlier by an optical gauge, for example luminosity or colourity or the like, with the software calculation of the optical feature value that measures and required one group of color definition value via a computing machine, obtain the color conversion table of comparisons, then the above-mentioned color conversion table of comparisons is write in the internal memory of display; If when wishing that display possesses several color modes, just need repeat above-mentioned action for several times, adjust different color definition values at every turn, and one by one the color conversion table of comparisons that produces is write in the internal memory of display.Therefore, though software calculation color tracking mode has been saved manpower and improved accuracy, can't improve the shortcoming that needs the massage storage space to store the color conversion table of comparisons.
Summary of the invention
In view of this, the invention provides a kind of display of the color tracking algorithm based on embedded optical feature value, the conversion optical feature value is to be built in the display in the algorithm of color parameter, do not need computing by main frame, simplify the complicated originally color of display and follow the tracks of hardware structure, reduce required storage area, and save a lot of Measuring Time.Embodiments of the invention disclose a kind of display, include a display panel, a storage unit, a switching device shifter and a color tracking cell (color tracking unit).Said memory cells stores the optical feature value of above-mentioned display panel.Above-mentioned color tracking cell is done color tracking operation according to an above-mentioned optical feature value and a color definition value, to adjust the color of above-mentioned display panel.
The present invention also provides a kind of method that the display device color is followed the tracks of that is used for, and comprising: by a cell stores one optics table of comparisons, wherein, the described optics table of comparisons stores at least one optical feature value of described display device; Be set to a few color definition value by a switching device shifter; And next by a color tracking cell according to described optical feature value and color definition value, produce the color conversion table of comparisons, and then carry out color according to the described color conversion table of comparisons and follow the tracks of, to adjust the color of described display panel.
Description of drawings
Fig. 1 is the synoptic diagram of embodiment of the invention display 100.
Fig. 2 is the embedded color tracking algorithm process flow diagram of embodiment of the invention display.
Fig. 3 is the built-in color tracking algorithm process flow diagram of the embodiment of the invention.
Embodiment
For above and other objects of the present invention, feature and advantage can be become apparent, cited below particularlyly go out preferred embodiment, and conjunction with figs., be described in detail below:
Embodiment:
Fig. 1 is the synoptic diagram of embodiment of the invention display 100, includes a display panel 120, display 100 built-in storage unit 140, a color tracking cell 160 and the switching device shifters 180 of comprising.Storage unit 140 includes an optics table of comparisons 142 and the color conversion table of comparisons 144.
Store the optical feature value that display panel 120 measures via optical gauge in the optics table of comparisons 142, it can be the RGB values (tristimulus values, i.e. redgreenblue values) that measures via optical gauge.Following form one is the optical transition list, has noted down the relation of GTG and RGB values.Above-mentioned optical feature value is not limited to the RGB values.
Form one
| GTG | (X, Y, Z) (RGB values) |
| 0 | (0.366，0.568，0.358) |
| … | ... |
| 255 | ... |
The color conversion table of comparisons is used for color conversion, and Gamma that chooses according to the user and colour temperature are calculated RGB respectively from 0 to 255 the pairing output valve of GTG value, note down into the color conversion table of comparisons 144.The above-mentioned color conversion table of comparisons 144 is a signal amplitude modulator (scalar) or the accessible system value of time schedule controller (T-CON).Before the optics table of comparisons 142 that also has no basis upgraded, the color conversion table of comparisons 144 can be a default color conversion table of comparisons.
The demand that display is different according to the user provide the color mode of various different situations, and the color mode of display is by one group of color definition value defined.The user can be switched color definition value (Gamma or colour temperature) by a switching device shifter 180 and be defined required color mode.For example, above-mentioned switching device shifter is on display, allows the user switch different color definition values via screen display (OSD).After the user is switched different color definition values, for example selected after a colour temperature and the Gamma value, color tracking cell 160 just can read the optical feature value of the optics table of comparisons 142 from storage unit 140, the color conversion table of comparisons of rerunning and making new advances, and upgrade original color conversion table of comparisons 144 (no matter whether being the color conversion table of comparisons of presetting) in the displacement storage unit 140, so that display panel 120 is adjusted to new color mode.Color tracking cell 160 can be to have the microprocessor of firmware (firmware) execution to realize according to certain specific colour temperature track algorithm with an ASIC(Application Specific Integrated Circuit) (ASIC) or a foundation.
Fig. 2 is the embedded color tracking algorithm process flow diagram of embodiment of the invention display.At first, provide a display 100 (S1), include a display panel 120, storage unit 140, a color tracking cell 160 and a switching device shifter 180 as Fig. 1.Utilize an optical gauge to measure one group of optical feature value of display panel 120, and, be stored in (S3) in the storage unit 140 its form with the optics table of comparisons 142 (S2).Optical gauge can be a degree meter of the same colour or a spectrophotometer, in order to the luminosity of measuring display panel central point light source or colourity or the like.
Then, the user chooses a color definition value of wanting (Gamma or colour temperature) (S4) via the switching device shifter 180 of display.Color tracking cell 160 just can read the optics table of comparisons 142 from storage unit 140 then, obtain the optical feature value of display panel 120, and with reference to selected color definition value, through producing a new color conversion table of comparisons 144 after the computing, upgrade displacement and fall original color conversion table of comparisons (S5) in the storage unit 140.And color tracking cell 160 can be done the color tracking with reference to the color tracking algorithm of figure 3.At first, whole display panel is done white balance adjustment (S21).Calculate each RGB eigenwert (S22) of display panel, to obtain corresponding Gamma value (S23).After obtaining corresponding Gamma value, display panel can be done color according to above-mentioned Gamma value and follow the tracks of, and shows the picture (S24) after finishing, and produces the new color conversion table of comparisons and replace original color conversion table of comparisons (S25).
The display of the embedded color tracking algorithm based on optical feature value that the present invention is disclosed, make optical feature value and one group of color conversion table of comparisons that only need store display pannel in the display, when user's desire is switched different color modes, display can real-time operation produce the new color conversion table of comparisons and replace original color conversion table of comparisons, therefore, can reduce storing the required storage space of the color conversion table of comparisons effectively, also significantly reduce the preceding display color of production simultaneously and follow the tracks of required time cost.
For instance, have the color mode of 5 kinds of Gamma values and 13 kinds of colour temperature combinations if wish a display, according to prior art, 65 kinds of color conversion tables of comparisons all need be stored in the internal memory of display, each color conversion table of comparisons has three kinds of values of RGB, each GTG value hypothesis is with 10 records, and then a color conversion table of comparisons needs 256*2
30The space of position stores 65 color conversion tables of comparisons if desired, needs 256*2 altogether
30The memory headroom of position * 65.But, if implement with color tracking mode of the present invention, only need to store the space of an optics table of comparisons and a color conversion table of comparisons, when the user need be switched different color modes, display can produce the corresponding color conversion table of comparisons in real time, original color conversion table of comparisons is replaced as into a new color conversion table of comparisons, reach the purpose that color mode switches, thus, just do not need to waste the color conversion table of comparisons that a large amount of spaces stores various color modes, only need 256*2
30The space of position stores a color conversion table of comparisons and gets final product.
Can understand easily from above-mentioned specific embodiment, the present invention also provides a kind of method that the display device color is followed the tracks of that is used for, comprise: by a cell stores 140 1 optics tables of comparisons 142, wherein, the optics table of comparisons 142 stores at least one optical feature value of display; Set color definition value of the same colour at least by a switching device shifter 180; And by a color tracking cell 160 according to described optical feature value and color definition value, produce the color conversion table of comparisons 144, and then carry out color according to the described color conversion table of comparisons 144 and follow the tracks of, to adjust the color of described display panel.
In an embodiment of this method, optical feature value is the RGB values of the described display device that measures with an optical gauge, and described color definition value is Gamma value and colour temperature.
In an embodiment of this method, described switching device shifter is a control device on display.
In an embodiment of this method, described color transformation table is record one signal amplitude modulator or the accessible system value of time schedule controller.
In an embodiment of this method, include the one first color conversion table of comparisons in the display, described color tracking cell 160 produces the one second color conversion table of comparisons according to the color definition value and the optics table of comparisons 142, and replace the first color conversion table of comparisons, to adjust the color of described display panel.
Though the present invention discloses as above with preferred embodiment; but be not in order to limiting scope of the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; should do some variations and adjustment, so protection scope of the present invention should be as the criterion with the scope of claim.
Claims (6)
1. display comprises:
Display panel;
Storage unit stores an optics table of comparisons, and wherein, the described optics table of comparisons stores at least one optical feature value of described display panel;
Switching device shifter is in order to set color definition value of the same colour at least; And
The color tracking cell according to the described optics table of comparisons stored optical feature value and described color definition value, produces the color conversion table of comparisons, and carry out color according to the described color conversion table of comparisons and follow the tracks of, adjusting the color of described display panel,
Wherein said optical feature value is the RGB values of the described display panel that measures with an optical gauge, and
Include the one first color conversion table of comparisons in the described display, described color tracking cell produces the one second color conversion table of comparisons according to the described color definition value and the optics table of comparisons, and replace the described first color conversion table of comparisons, to adjust the color of described display panel
Wherein, described color definition value is Gamma value and colour temperature.
2. display according to claim 1, wherein, described switching device shifter is a control device on display.
3. display according to claim 1, wherein, the described color conversion table of comparisons is record one signal amplitude modulator or the accessible system value of time schedule controller.
4. one kind is used for the method that the display device color is followed the tracks of, and comprising:
By a cell stores one optics table of comparisons, wherein, the described optics table of comparisons stores at least one optical feature value of described display device;
Be set to a few color definition value by a switching device shifter; And
Come according to described optical feature value and color definition value by a color tracking cell, produce the color conversion table of comparisons, and then carry out the color tracking according to the described color conversion table of comparisons, adjusting the color of described display panel,
Wherein said optical feature value is the RGB values of the described display device that measures with an optical gauge, and described color definition value is Gamma value and colour temperature,
Include the one first color conversion table of comparisons in the described display, described color tracking cell produces the one second color conversion table of comparisons according to the described color definition value and the optics table of comparisons, and replace the described first color conversion table of comparisons, to adjust the color of described display panel.
5. method according to claim 4, wherein, described switching device shifter is a control device on display.
6. method according to claim 4, wherein, the described color conversion table of comparisons is record one signal amplitude modulator or the accessible system value of time schedule controller.
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| TWI402797B (en) | 2008-08-08 | 2013-07-21 | Chunghwa Picture Tubes Ltd | Driving method and driving apparaus for display apparatus |
| CN101661716B (en) * | 2008-08-25 | 2012-03-07 | 中华映管股份有限公司 | Method and device for driving display |
| CN107665677B (en) * | 2017-08-16 | 2018-10-12 | 惠科股份有限公司 | A kind of white balance adjustment method and display device of display device |
| CN109448644B (en) * | 2018-10-11 | 2021-07-16 | 广州视源电子科技股份有限公司 | Method for correcting gray scale display curve of display device, electronic device and computer readable storage medium |
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