CN102522073B - Energy-saving image processing method and display device thereof - Google Patents
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- CN102522073B CN102522073B CN201110387711.5A CN201110387711A CN102522073B CN 102522073 B CN102522073 B CN 102522073B CN 201110387711 A CN201110387711 A CN 201110387711A CN 102522073 B CN102522073 B CN 102522073B
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- 238000003672 processing method Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 claims description 15
- 239000003086 colorant Substances 0.000 claims description 13
- 238000004134 energy conservation Methods 0.000 claims description 12
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 9
- 239000004973 liquid crystal related substance Substances 0.000 description 5
- 238000004020 luminiscence type Methods 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 1
- 238000005401 electroluminescence Methods 0.000 description 1
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Abstract
An energy-saving image processing method and a display device thereof, the image processing method comprises providing image information; determining a first color coordinate and a color tolerance deviation value according to a first red gray scale value, a first green gray scale value and a first blue gray scale value of the image information; determining a second red gray scale value, a second green gray scale value and a second blue gray scale value according to the first color coordinate, the color tolerance deviation value and a power consumption value; and displaying an image according to the second red gray scale value, the second green gray scale value and the second blue gray scale value. The invention can display the picture with lower power in the color tolerance value parameter of the gray scale value, and further can enable the organic light emitting diode display device to achieve the effect of energy saving under the condition that a user is not easy to perceive the color difference.
Description
Technical field
The present invention relates to a kind of image processing method, relate in particular to a kind of energy-conservation image processing method and display device thereof.
Background technology
Be different from liquid crystal indicator and carry out display frame in conjunction with the element such as backlight module and liquid crystal panel, Organic Light Emitting Diode (OLED) display device is by applying a voltage to the Organic Light Emitting Diode on display pixel, so that Organic Light Emitting Diode sends the light of particular color (profit as red, blue, green), and then display frame.Because the backlight module of liquid crystal indicator is lasting luminous with same brightness, therefore the power consumption of liquid crystal indicator is comparatively stable.And organic LED display device can secretly have different power consumptions along with picture bright, in the time that picture is dark, power consumption is lower, and in the time that picture is bright, power consumption is higher.If the picture major part that organic LED display device shows is brighter picture, the power consumption of organic LED display device can be high compared with liquid crystal indicator.
In order to reduce the power consumption of organic LED display device, known organic LED display device can intert a black picture (also closing by all pixels) between every two display frames, and then reduces the power consumption of organic LED display device.But aforesaid way can increase the complicacy of hardware, and show that a black picture needs all pixels to close, and the brightness of local adjustment member picture block according to demand.
Summary of the invention
In order to address the deficiencies of the prior art, the invention provides a kind of energy-conservation image processing method, comprise an image information is provided; Determine one first chromaticity coordinates and tolerance deviation value of the same colour according to first of this image information the red GTG value, the first green GTG value and the first blue GTG value; According to this first chromaticity coordinates, this color tolerance is permitted deviate and a power consumption value is determined one second red GTG value, one second green GTG value and one second blue GTG value; And show image according to this second red GTG value, this second green GTG value and this second blue GTG value.
The present invention also provides a kind of energy-conservation display device, comprises a graphics processing unit, and a display panel.This graphics processing unit is in order to determine one first chromaticity coordinates and tolerance deviation value of the same colour according to first of the image information of a reception the red GTG value, the first green GTG value and the first blue GTG value, and according to this first chromaticity coordinates, this color tolerance is permitted deviate and a GTG and adjusts parameter and determine one second red GTG value, one second green GTG value and the one second blue GTG value of tool smaller power consumption figures.This display panel shows image according to this second red GTG value, this second green GTG value and this second blue GTG value.
The present invention also provides a kind of energy-conservation image processing method, comprises image information is provided; Determine that according to first of this image information the red GTG value, the first green GTG value and the first blue GTG value the first chromaticity coordinates and color tolerance permitted deviate; According to this first chromaticity coordinates, this color tolerance is permitted deviate and a driving current value is determined one second red GTG value, one second green GTG value and one second blue GTG value; And show image according to this second red GTG value, this second green GTG value and this second blue GTG value.
The present invention also provides a kind of energy-conservation display device, comprises graphics processing unit, and display panel.This graphics processing unit is in order to determine one first chromaticity coordinates and tolerance deviation value of the same colour according to the first red GTG value, the first green GTG value and the first blue GTG value of the image information receiving, and according to this first chromaticity coordinates, this color tolerance is permitted deviate and a GTG and adjusts parameter and determine one second red GTG value, one second green GTG value and the one second blue GTG value of the less driving current value of tool.This display panel shows image according to this second red GTG value, this second green GTG value and this second blue GTG value.
The present invention can be with lower power display frame in the color tolerance of GTG value is permitted deviate parameter, and then can be in the situation that user is difficult for discovering color distortion, makes organic LED display device reach energy-conservation effect.
Brief description of the drawings
Fig. 1 is the schematic diagram of display device of the present invention.
Fig. 2 is the schematic diagram of CIE-UV chromaticity coordinate figure.
Fig. 3 is the schematic diagram that the corresponding maximum color tolerance of three kinds of colors of RGB is permitted deviate.
Fig. 4 is the process flow diagram of image processing method of the present invention.
[main description of reference numerals]
100 display device
110 graphics processing units
120 power judging units
130 display panels
P the first chromaticity coordinates
R color tolerance is permitted deviate
400 process flow diagrams
410 to 450 steps
Embodiment
Please refer to Fig. 1, Fig. 1 is the schematic diagram of display device 100 of the present invention.As shown in Figure 1, display device 100 of the present invention comprises graphics processing unit 110, power judging unit 120, and display panel 130.When display device 100 receives image information, the first red GTG value, the first green GTG value and the first blue GTG value that graphics processing unit 110 can comprise according to image information determined the first chromaticity coordinates of its correspondence, and the first chromaticity coordinates is the chromaticity coordinates of CIE-UV chromaticity coordinate figure.Graphics processing unit 110 can be permitted deviate according to the definite color tolerance of GTG value size of first of image information the red GTG value, the first green GTG value and the first blue GTG value in addition.And power judging unit 120 is electrically connected on graphics processing unit 110, produced GTG adjustment parameter in order to permit deviate and predetermined power consumption figures (or predetermined drive currents value) according to the color tolerance of image information, and GTG is adjusted to parameter and pass to graphics processing unit 110.Graphics processing unit 110 is adjusted the red GTG value of parameter generating second, the second green GTG and the second blue GTG value according to GTG again, and drives display panel 130 according to the second red GTG regulated value, the second green GTG and the second blue GTG value.Predetermined power consumption figures is by driving minimal power consumption value predetermined when pixel.It is the misalignment value that the shown color of the first chromaticity coordinates can be allowed that color tolerance is permitted deviate, and the shown color of chromaticity coordinates in color tolerance is permitted deviate is difficult for discovering the difference of the shown color of itself and the first chromaticity coordinates for user.For instance, please refer to Fig. 2, Fig. 2 is the schematic diagram of CIE-UV chromaticity coordinate figure, the first chromaticity coordinates P is corresponding to the chromaticity coordinates of the first red GTG value, the first green GTG value and the first blue GTG value, and the shown color of chromaticity coordinates in color tolerance is permitted deviate r parameter will be similar to the shown color of the first chromaticity coordinates.
Please refer to Fig. 3, Fig. 3 is the schematic diagram that the corresponding maximum color tolerance of three kinds of colors of RGB is permitted deviate.Because human eye is comparatively responsive to green, therefore green corresponding maximum color tolerance is permitted deviate minimum.And human eye is more insensitive to blueness, therefore blue corresponding maximum color tolerance is permitted deviate maximum.The color tolerance of the first chromaticity coordinates is permitted deviate and can be determined according to the size of the red GTG value of first of image information, the first green GTG value and the first blue GTG value.For instance, when the first red GTG value is compared with the first green GTG value and the first blue GTG value when large, redness is the mass-tone of this image information, and therefore the color tolerance of the first chromaticity coordinates is permitted deviate and be can be the corresponding maximum color tolerance of mass-tone (redness) and permitted deviate.Similarly, when the first green GTG value is compared with the first red GTG value and the first blue GTG value when large, the color tolerance of the first chromaticity coordinates is permitted deviate and be can be green corresponding maximum color tolerance and permitted deviate, by that analogy.For example, for example, for example, and in the time having the GTG value of two kinds of colors (red and green) to equate and the GTG value of more remaining color (blue) is large, the color tolerance of the first chromaticity coordinates is permitted deviate and be can be the corresponding maximum color tolerance of these two kinds of colors (red and green) and permitted the mean value of deviate.And in the time that the GTG value of three kinds of colors of RGB all equates, the color tolerance of the first chromaticity coordinates is permitted deviate and be can be green corresponding maximum color tolerance and permitted deviate.
Adjust after parameter when receiving the GTG that power judging unit 120 transmits, graphics processing unit 110 can be further according to the first chromaticity coordinates, and color tolerance is permitted deviate and GTG and adjust parameter and determine the second red GTG value, the second green GTG value and the second blue GTG value of tool smaller power consumption figures.The color tolerance that wherein the second red GTG value, the second green GTG value and corresponding the second chromaticity coordinates of the second blue GTG value are positioned at the first chromaticity coordinates is permitted deviate scope.For instance, if the GTG value of the first red GTG value is R, the first green GTG value is G, the first blue GTG value is B, and the first red GTG value adjustment parameter is r, the adjustment parameter of the first green GTG value is g, the adjustment parameter of the first blue GTG value is b, graphics processing unit can calculate the multiple red GTG value R ' in GTG setting range, the power consumption (or driving current value) that green GTG value G ' and blue GTG value B ' produce, wherein red GTG value R ' is positioned at the scope of R ± r, green GTG value G ' is positioned at the scope of G ± g, and blue GTG value B ' is positioned at the scope of B ± b.The power consumption that red GTG value R ', green GTG value G ' and blue GTG value B ' produce can be represented by following formula:
W＝1/α×R’+1/β×G’+1/γ×B’
Wherein W represents the power consumption estimated value that red GTG value R ', green GTG value G ' and blue GTG value B ' produce, α represents the luminescence efficiency of Red Organic Electroluminescence Devices, β represents the luminescence efficiency of green organic light emitting diode (LED), and γ represents the luminescence efficiency of blue Organic Light Emitting Diode.The luminescence efficiency of Organic Light Emitting Diode is the ratio of brightness and drive current.
As the multiple red GTG value R ' calculating in GTG setting range, the power consumption (or driving current value) that green GTG value G ' and blue GTG value B ' produce, graphics processing unit can be determined the second red GTG value of providing smaller power consumption figures, the second green GTG value and the second blue GTG value, and definite the second red GTG value, the color tolerance that the second green GTG value and corresponding the second chromaticity coordinates of the second blue GTG value are positioned at the first chromaticity coordinates is permitted deviate scope, display panel can be according to the second red GTG value, the second green GTG value and the second blue GTG value show image.In the time that display panel shows image with the second red GTG value, the second green GTG value and the second blue GTG value, user is not only difficult for discovering the color of display frame and whether the color of script picture is variant, and the power consumption (or driving current value) of display panel also can reduce efficiently.
In addition, graphics processing unit also can be set up a look-up table in advance, the corresponding relation of the first/the second red GTG value, the first/the second green GTG value and the first/the second blue GTG value is stored in look-up table, in the time that graphics processing unit receives image information, graphics processing unit can offer the second corresponding red GTG value, the second green GTG value and the second blue GTG value display panel immediately to show the speed of image to accelerate to process.
Please refer to Fig. 4, the process flow diagram 400 that Fig. 4 is image processing method of the present invention.The flow process of image processing method of the present invention is as the following step:
Step 410: image information is provided;
Step 420: determine the first chromaticity coordinates according to first of this image information the red GTG value, the first green GTG value and the first blue GTG value;
Step 430: the color tolerance of determining also definite this mass-tone of mass-tone of this image information display according to the GTG value size of first of this image information the red GTG value, the first green GTG value and the first blue GTG value is permitted deviate;
Step 440: according to this first chromaticity coordinates, this color tolerance is permitted deviate and predetermined power consumption figures (or driving current value) is determined the second red GTG value, the second green GTG value and the second blue GTG value; And
Step 450: show image according to this second red GTG value, this second green GTG value and this second blue GTG value.
Said method can utilize software, or software collocation hardware reaches, and the inventive method local GTG value of adjusting picture according to demand, reaches energy-saving effect and need not close all pixels with hardware mode.
Compared to prior art, image processing method of the present invention can be with lower power display frame in the color tolerance of GTG value is permitted deviate parameter, and then can be in the situation that user is difficult for discovering color distortion, make organic LED display device reach energy-conservation effect.
The foregoing is only the preferred embodiments of the present invention, all equalizations of doing according to the claims in the present invention change and modify, and all should belong to covering scope of the present invention.
Claims (17)
1. an energy-conservation image processing method, the method comprises:
One image information is provided;
Determine one first chromaticity coordinates and tolerance deviation value of the same colour according to one first of this image information red GTG value, one first green GTG value and one first blue GTG value, wherein determine that this color tolerance is permitted deviate and comprised according to the GTG value size of first of this image information the red GTG value, the first green GTG value and the first blue GTG value and determine that a mass-tone and this color tolerance corresponding to this mass tone of this image information permitted deviate; Wherein, when the first described red GTG value, the first green GTG value and the first blue GTG value one of them compared with all the other the two when large, determine this one of them corresponding color mass-tone that is described image information, and corresponding this mass-tone maximum color tolerance is permitted to the color tolerance that deviate is defined as this first chromaticity coordinates and permitted deviate; In the time having the GTG value of two kinds of colors to equate in the first described red GTG value, the first green GTG value and the first blue GTG value and the GTG value of more remaining color is large, the mean value of the corresponding maximum color tolerance of these two kinds of colors being permitted to deviate is defined as the color tolerance of this first chromaticity coordinates and is permitted deviate; In the time that the first described red GTG value, the first green GTG value and the first blue GTG value all equate, corresponding green color tolerance is permitted to the color tolerance that deviate is defined as this first chromaticity coordinates and permitted deviate;
According to this first chromaticity coordinates, this color tolerance is permitted deviate and a predetermined power consumption figures is determined one second red GTG value, one second green GTG value and one second blue GTG value; And
Show image according to this second red GTG value, this second green GTG value and this second blue GTG value.
2. the method for claim 1, this color tolerance that wherein this second red GTG value, this second green GTG value and one second chromaticity coordinates corresponding to this second blue GTG value are positioned at this first chromaticity coordinates is permitted deviate scope.
3. the method for claim 1, also comprise that producing a GTG corresponding to this first red GTG value, this first green GTG value and this first blue GTG value according to this power consumption value adjusts parameter, wherein this second red GTG value, this second green GTG value and this second blue GTG value are positioned at this GTG setting range.
4. method as claimed in claim 3, also comprise the multiple red GTG value of calculating in this GTG setting range, the power consumption that green GTG value and blue GTG value produce, wherein according to this first chromaticity coordinates, this color tolerance is permitted deviate and this predetermined power consumption figures is determined this second red GTG value, this second green GTG value and this second blue GTG value are according to this first chromaticity coordinates, this color tolerance is permitted the multiple red GTG value in deviate and this GTG setting range, the power consumption of green GTG value and blue GTG value, determine this second red GTG value, this second green GTG value and this second blue GTG value.
5. an energy-conservation display device, comprising:
One graphics processing unit, in order to according to one first of the image information of a reception red GTG value, one first green GTG value and one first blue GTG value are determined one first chromaticity coordinates and tolerance deviation value of the same colour, and according to this first chromaticity coordinates, this color tolerance is permitted deviate and GTG adjustment parameter is determined one second red GTG value, one second green GTG value and one second blue GTG value, wherein determine that this color tolerance is permitted deviate and comprised according to first of this image information the red GTG value, the GTG value size of the first green GTG value and the first blue GTG value is determined a mass-tone of this image information, and this color tolerance corresponding to this mass tone permitted deviate, wherein, when the first described red GTG value, the first green GTG value and the first blue GTG value one of them compared with all the other the two when large, determine this one of them corresponding color mass-tone that is described image information, and corresponding this mass-tone maximum color tolerance is permitted to the color tolerance that deviate is defined as this first chromaticity coordinates and permitted deviate, in the time having the GTG value of two kinds of colors to equate in the first described red GTG value, the first green GTG value and the first blue GTG value and the GTG value of more remaining color is large, the mean value of the corresponding maximum color tolerance of these two kinds of colors being permitted to deviate is defined as the color tolerance of this first chromaticity coordinates and is permitted deviate, in the time that the first described red GTG value, the first green GTG value and the first blue GTG value all equate, corresponding green color tolerance is permitted to the color tolerance that deviate is defined as this first chromaticity coordinates and permitted deviate, and
One display panel, shows image according to this second red GTG value, this second green GTG value and this second blue GTG value.
6. display device as claimed in claim 5, this color tolerance that wherein this second red GTG value, this second green GTG value and one second chromaticity coordinates corresponding to this second blue GTG value are positioned at this first chromaticity coordinates is permitted deviate scope.
7. display device as claimed in claim 5, also comprises a power judging unit, is electrically connected on this graphics processing unit, is produced this GTG adjustment parameter in order to permit deviate and a predetermined power consumption figures according to this color tolerance.
8. display device as claimed in claim 7, wherein this graphics processing unit is permitted deviate and this GTG and is adjusted the power consumption of multiple red GTG value, green GTG value and blue GTG value that parameter obtains according to this first chromaticity coordinates, this color tolerance, to determine this second red GTG value, this second green GTG value and this second blue GTG value.
9. display device as claimed in claim 5 is an organic LED display device.
10. an energy-conservation image processing method, the method comprises:
One image information is provided;
Determine one first chromaticity coordinates and tolerance deviation value of the same colour according to one first of this image information red GTG value, one first green GTG value and one first blue GTG value, wherein determine that this color tolerance is permitted deviate and comprised according to the GTG value size of first of this image information the red GTG value, the first green GTG value and the first blue GTG value and determine that a mass-tone and this color tolerance corresponding to this mass tone of this image information permitted deviate; Wherein, when the first described red GTG value, the first green GTG value and the first blue GTG value one of them compared with all the other the two when large, determine this one of them corresponding color mass-tone that is described image information, and corresponding this mass-tone maximum color tolerance is permitted to the color tolerance that deviate is defined as this first chromaticity coordinates and permitted deviate; In the time having the GTG value of two kinds of colors to equate in the first described red GTG value, the first green GTG value and the first blue GTG value and the GTG value of more remaining color is large, the mean value of the corresponding maximum color tolerance of these two kinds of colors being permitted to deviate is defined as the color tolerance of this first chromaticity coordinates and is permitted deviate; In the time that the first described red GTG value, the first green GTG value and the first blue GTG value all equate, corresponding green color tolerance is permitted to the color tolerance that deviate is defined as this first chromaticity coordinates and permitted deviate;
According to this first chromaticity coordinates, this color tolerance is permitted deviate and a predetermined drive currents value is determined one second red GTG value, one second green GTG value and one second blue GTG value; And
Show image according to this second red GTG value, this second green GTG value and this second blue GTG value.
11. methods as claimed in claim 10, this color tolerance that wherein this second red GTG value, this second green GTG value and one second chromaticity coordinates corresponding to this second blue GTG value are positioned at this first chromaticity coordinates is permitted deviate scope.
12. methods as claimed in claim 10, also comprise that producing a GTG corresponding to this first red GTG value, this first green GTG value and this first blue GTG value according to this predetermined drive currents value adjusts parameter, wherein this second red GTG value, this second green GTG value and this second blue GTG value are positioned at this GTG setting range.
13. methods as claimed in claim 12, also comprise that calculating this GTG adjusts the multiple red GTG value in parameter, the power consumption that green GTG value and blue GTG value produce, wherein according to this first chromaticity coordinates, this color tolerance is permitted deviate and this predetermined drive currents value is determined this second red GTG value, this second green GTG value and this second blue GTG value are according to this first chromaticity coordinates, this color tolerance is permitted deviate and this GTG is adjusted the multiple red GTG value in parameter, green GTG value and driving current value corresponding to blue GTG value, determine this second red GTG value, this second green GTG value and this second blue GTG value.
14. 1 kinds of energy-conservation display device, comprising:
One graphics processing unit, in order to according to first of the image information of a reception the red GTG value, the first green GTG value and the first blue GTG value are determined one first chromaticity coordinates and tolerance deviation value of the same colour, and according to this first chromaticity coordinates, this color tolerance is permitted deviate and a GTG and adjusts parameter and determine one second red GTG value of the less driving current value of tool, one second green GTG value and one second blue GTG value, wherein determine that this color tolerance is permitted deviate and comprised according to first of this image information the red GTG value, the GTG value size of the first green GTG value and the first blue GTG value is determined a mass-tone of this image information, and this color tolerance corresponding to this mass tone permitted deviate, wherein, when the first described red GTG value, the first green GTG value and the first blue GTG value one of them compared with all the other the two when large, determine this one of them corresponding color mass-tone that is described image information, and corresponding this mass-tone maximum color tolerance is permitted to the color tolerance that deviate is defined as this first chromaticity coordinates and permitted deviate, in the time having the GTG value of two kinds of colors to equate in the first described red GTG value, the first green GTG value and the first blue GTG value and the GTG value of more remaining color is large, the mean value of the corresponding maximum color tolerance of these two kinds of colors being permitted to deviate is defined as the color tolerance of this first chromaticity coordinates and is permitted deviate, in the time that the first described red GTG value, the first green GTG value and the first blue GTG value all equate, corresponding green color tolerance is permitted to the color tolerance that deviate is defined as this first chromaticity coordinates and permitted deviate, and
One display panel, shows image according to this second red GTG value, this second green GTG value and this second blue GTG value.
15. display device as claimed in claim 14, this color tolerance that wherein this second red GTG value, this second green GTG value and one second chromaticity coordinates corresponding to this second blue GTG value are positioned at this first chromaticity coordinates is permitted deviate scope.
16. display device as claimed in claim 14, also comprise a power judging unit, are electrically connected on this graphics processing unit, are produced this GTG adjustment parameter in order to permit deviate and a predetermined drive currents value according to this color tolerance.
17. display device as claimed in claim 16, wherein this graphics processing unit is permitted deviate and this GTG according to this first chromaticity coordinates, this color tolerance and is adjusted multiple red GTG value, green GTG value and driving current value corresponding to blue GTG value that parameter obtains, to determine this second red GTG value, this second green GTG value and this second blue GTG value.
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| TWI559282B (en) * | 2015-06-03 | 2016-11-21 | 友達光電股份有限公司 | Driving method of display |
| CN105513559B (en) * | 2016-02-05 | 2018-08-24 | 青岛海信电器股份有限公司 | A kind of image processing method and display device |
| CN109872668B (en) * | 2019-04-12 | 2022-08-09 | 京东方科技集团股份有限公司 | Image display total current prediction method, display device and storage medium |
| CN111681603B (en) * | 2020-06-15 | 2022-02-11 | 昆山国显光电有限公司 | Driving method of display panel |
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| CN101083774A (en) * | 2006-05-31 | 2007-12-05 | 深圳Tcl工业研究院有限公司 | Color temperature dynamic regulation method |
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| US6919681B2 (en) * | 2003-04-30 | 2005-07-19 | Eastman Kodak Company | Color OLED display with improved power efficiency |
| JP2007274600A (en) * | 2006-03-31 | 2007-10-18 | National Univ Corp Shizuoka Univ | Color conversion matrix forming method and color conversion apparatus |
| TWI338880B (en) * | 2007-08-15 | 2011-03-11 | Au Optronics Corp | A driving method for reducing power consumption of a flat display |
| JP5358918B2 (en) * | 2007-09-28 | 2013-12-04 | カシオ計算機株式会社 | Driving method of liquid crystal display element |
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| CN101083774A (en) * | 2006-05-31 | 2007-12-05 | 深圳Tcl工业研究院有限公司 | Color temperature dynamic regulation method |
| CN101149900A (en) * | 2007-11-08 | 2008-03-26 | 友达光电股份有限公司 | Drive method for reducing plane display power consumption |
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