CN114694582A - Automatic energy-saving method for screen by using dynamic pixel dimming and nonlinear equation - Google Patents
Automatic energy-saving method for screen by using dynamic pixel dimming and nonlinear equation Download PDFInfo
- Publication number
- CN114694582A CN114694582A CN202210454490.7A CN202210454490A CN114694582A CN 114694582 A CN114694582 A CN 114694582A CN 202210454490 A CN202210454490 A CN 202210454490A CN 114694582 A CN114694582 A CN 114694582A
- Authority
- CN
- China
- Prior art keywords
- hist
- saving
- formula
- energy
- screen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000013598 vector Substances 0.000 claims abstract description 37
- 238000012545 processing Methods 0.000 claims abstract description 9
- 238000012937 correction Methods 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims abstract description 6
- 230000001186 cumulative effect Effects 0.000 claims description 15
- 238000005457 optimization Methods 0.000 claims description 8
- 238000013507 mapping Methods 0.000 claims description 7
- 239000011159 matrix material Substances 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000012549 training Methods 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0242—Compensation of deficiencies in the appearance of colours
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The invention discloses an automatic energy-saving method for a screen by using dynamic pixel dimming and a nonlinear equation, which belongs to the field of screen energy saving and comprises the following steps: step S1: carrying out color and conversion on an input color image, and converting an RGB color gamut picture into YUV color gamut data; step S2: performing histogram statistics on the luminance Y channel converted in the step S1, wherein the histogram vector after statistics is Hist _ Y1，Hist_Y1Regulate to [0,65535]The vector of the interval is Hist _ Y2(ii) a Step S3: for Hist _ Y2Performing correction processing to correct Hist _ Y2Becomes the desired curve vector Histadjust. The invention can effectively reduce the color loss of the high-brightness area of the OLDE screen caused by energy saving and ensure that the details of the low-brightness area are not lost; the definition and the energy-saving strength of the screen are controlled through 2 control quantities, so that the service life of the OLDE screen can be prolonged better while energy is saved; can adjust the image quality of the image in real time and automatically according to the content of the image, and present a more beautiful visual bodyAnd (6) testing.
Description
Technical Field
The invention relates to the technical field of screen energy saving, in particular to an automatic energy saving method for a screen by using dynamic pixel dimming and a nonlinear equation.
Background
Organic Light Emitting Diode (OLED) displays, which are a new technology developed in recent years, provide advantages of brighter colors, better flexibility, wider viewing angles, and faster response times, etc., compared to Liquid Crystal Displays (LCDs). Therefore, the OLED screen is widely applied to the fields of smart phones, smart wearing, smart televisions and the like. With the popularity of OLED screens, many of the disadvantages of OLED screens are slowly emerging. The power consumption is almost 0 when the OLED display displays a black image, and the power consumption may be more than twice that of the conventional LCDS when the OLED screen displays a white image. And the long-time highlight image operation shortens the service life of the OLED screen. Especially in the fields of smart phones, smart wearable devices and the like, the energy-saving method of the OLED has become an important scientific research technology in recent years.
Most of the energy-saving technologies of the conventional OLED screen at present adopt a direct threshold value of a high-brightness area of a picture or directly multiply a brightness adjustment ratio value alpha on a single channel of R, G and B of an image to achieve the effect of saving energy of the OLED screen. These conventional techniques have the disadvantages of losing the real image details of the screen, reducing the contrast of the screen, and generating screen color cast.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides an automatic energy-saving method for a screen by using dynamic pixel dimming and a nonlinear equation.
In order to achieve the purpose, the invention adopts the following technical scheme:
an automatic energy-saving method for a screen using dynamic pixel dimming and non-linear equations, comprising the steps of:
step S1: carrying out color and conversion on an input color image, and converting an RGB color gamut picture into YUV color gamut data;
step S2: performing histogram statistics on the luminance Y channel converted in the step S1, wherein the histogram vector after statistics is Hist _ Y1，Hist_Y1Regular to [0,65535]The vector of the interval is Hist _ Y2；
Step S3: for Hist _ Y2Performing correction processing to correct Hist _ Y2Becomes the desired curve vector Histadjust；
Step S4: hist solved in step S3adjustStandardizing to an L gray level, wherein the standardized matrix is Hist _ L;
step S5: calculation of Hist Using equation (6)LThe cumulative histogram of (a);
step S6: performing energy-saving processing on the oled screen through an energy-saving formula (7);
step S7: adjusting parameters based on the energy saving formula (7) of step S6 for optimization, and performing optimization through the optimized formulaThe energy-saving curve F is obtained by calculation of the formula (9)es；
Step S8: the energy saving curve F in step S7esMapping operation is carried out on Y to obtain new YUVesAnd converting the data into RGB image data through a color space by a formula and outputting the RGB image data to an OLED screen for display.
Further, in step S2, Hist _ Y is expressed according to equation (2)1Is regulated to [0,65535]Within the interval, the following are specified:
Histmax＝MAX(Hist_Y2) (3)
wherein, Hist _ Y in the formula (2)1Is the histogram vector of the Y statistic, Hist _ Y2Is Hist _ Y1Normalized to [0,65535]Vector of intervals, M N is the height and width of Y, Hist in equation (3)maxIs Hist _ Y2Of (c) is calculated.
Further, in step S3, Hist _ Y is corrected by adjusting the value of u in equation (4)2To obtain the desired curve vector, the formula is as follows:
wherein u is a histogram adjustment coefficient, and the value range of u is [0, 7 ]]In the interval, the closer u is to 0, the flatter u is, and the closer u is to 7, the more wavy u is. HistadjustIs the vector after u correction.
Further, in step S4, the formula for normalizing to the L gray scale is specifically as follows
Where Hist _ L is the normalized matrix, SUM (Hist)adjust) Is HistadjustThe sum of the vectors, L, is equal to 256 gray levels.
Further, in step S5, the cumulative histogram of Hist _ L is calculated in the following manner:
where Cumsum _ Hist is a cumulative histogram of Hist _ L, the value i at point k of Cumsum _ Hist is from 0 to the Hist _ L cumulative value at point k.
Further, in step S6, the energy saving formula (7) is specifically:
f(x)＝FP1xn+FP2xn-1+FP3xn-1…FPn (7)
wherein, [ F ]P1，FP2，FP3，…FPn]Is an energy-saving control parameter, x is an input controlled quantity, i.e. xi＝Cumsum_Histi，xiIs the value of the vector x at the i position.
Further, in step S7, the oled screen energy saving is controlled by adjusting the β parameter, wherein the relation formula between the energy saving formula and β is specifically:
where β is the input of x of equation (8), pi，jIs a controlled quantity of a multiple equation, [ FP1，FP2，…，Fnn]Is a control quantity of the formula (7) wherein pi，jCan obtain the best p by training image data and sample datai，jFinding optimal p by numerical value or by solving minimum error method of image data and sample datai，jThe value is obtained.
Further, in step S7, the complexity of the energy saving operation is optimized by taking any one of the linear equation, the quadratic equation, or the cubic equation of equation (7) to operate, where:
further, in step S7, the secondary energy-saving equation of formula (7) is used for optimization, and equation (9) after formula (7) is simplified is specifically as follows:
wherein F in the formula (9)esIs the output of the equation, [ FP1，FP2，FP3]Is the energy-saving control quantity.
Further, in step S8, the specific steps are: an energy-saving curve F is obtained by setting u and beta numerical valuesesFor the input Y channel, pass through the energy-saving curve FesMapping to obtain the brightness Y after energy savinges，YesSynthesize a new YUV with UV channelesData, YUVesThe data is converted into RGB image data and output, and the output image is displayed on an oled screen.
Compared with the prior art, the invention has the beneficial effects that:
the invention can effectively reduce the color loss of the high-brightness area of the OLDE screen caused by energy saving and ensure that the details of the low-brightness area are not lost;
compared with the prior art, the method can better keep the saturation, the contrast, the chromaticity and the like of the OLDE screen;
the invention controls the definition and the energy-saving intensity of the screen through 2 control quantities, is convenient to operate and is easier to develop and realize a driving chip;
the invention can better prolong the service life of the OLDE screen while saving energy;
compared with the prior art, the method and the device can adjust the image quality of the image in real time and automatically according to the content of the image, and present more beautiful visual experience.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
FIG. 1 is a logic diagram of an automatic energy saving method using dynamic pixel dimming and a non-linear equation screen proposed by the present invention;
FIG. 2 is a diagram illustrating a histogram vector curve in step S5 according to an embodiment of the present invention;
FIG. 3 is a diagram illustrating a cumulative histogram curve in step S5 according to an embodiment of the present invention;
fig. 4 is a schematic diagram of the energy saving curve output in step S7 according to the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example one
Referring to fig. 1, an automatic power saving method for a screen using dynamic pixel dimming and a non-linear equation, includes the steps of:
step S1: carrying out color and conversion on an input color image, and converting an RGB color gamut picture into YUV color gamut data;
step S2: performing histogram statistics on the luminance Y channel converted in the step S1, wherein the histogram vector after statistics is Hist _ Y1，Hist_Y1Regular to [0,65535]The vector of the interval is Hist _ Y2；
Step S3: for Hist _ Y2Performing correction processing to correct Hist _ Y2Becomes the desired curve vector Histadjust；
Step S4: hist solved in step S3adjustStandardizing to an L gray level, wherein the standardized matrix is Hist _ L;
step S5: calculation of Hist Using equation (6)LThe cumulative histogram of (a);
step S6: performing energy-saving processing on the oled screen through an energy-saving formula (7);
step S7: adjusting parameters for optimization on the basis of the energy-saving formula (7) in the step S6, and calculating an energy-saving curve F through the optimized formula (9)es；
Step S8: the energy saving curve F in step S7esMapping YCalculating to obtain new YUVesAnd converting the data into RGB image data through a color space by a formula and outputting the RGB image data to an OLED screen for display.
Example two
Referring to fig. 1-4, on the basis of the first embodiment, in another preferred embodiment of the present invention, an automatic energy saving method using dynamic pixel dimming and a non-linear equation screen includes the following steps:
step S1: the input color image is subjected to color and conversion, and the picture of RGB color gamut is converted into the data of YUV color gamut
The color conversion formula is as follows
Step S2: performing histogram statistics on the luminance Y channel converted in the step S1, wherein the histogram vector after statistics is Hist _ Y1，Hist_Y1Normalized to [0,65535]The vector of the interval is Hist _ Y2；
Specifically, histogram statistics is performed on the luminance Y channel converted in step S1, and the vector after statistics is Hist _ Y1The Hist _ Y is expressed according to the formula (2)1Is regulated to [0,65535]Within the interval.
Histmas＝MAX(Hist_Y2) (3)
Wherein Hist _ Y1 in formula (2) is a histogram vector of Y statistics, Hist _ Y2Is Hist _ Y1Regular to [0,65535]Vector of intervals, M N is the height and width of Y, Hist in equation (3)maxIs Hist _ Y2Is measured.
Step S3: for Hist _ Y2Performing correction processing to correct Hist _ Y2Becomes the desired curve vector Histadjust；
Specifically, the value of u in the formula (4) is adjustedCorrecting Hist _ Y2The formula for the desired curve vector is as follows:
u in the formula (4) is a histogram adjustment coefficient, and the value range of u is [0, 7 ]]In the interval, the closer u is to 0, the flatter u is, the closer u is to 7, the more wavy u is, and HistadjustIs the vector after u correction.
Step S4: hist solved in step S3adjustStandardizing to an L gray level, wherein the standardized matrix is Hist _ L;
specifically, the Hist obtained in step S3 is solvedadjustNormalized to the L gray level, the normalized formula is as follows:
hist _ L in equation (5) is a normalized matrix, SUM (Hist)adjust) Is HistadjustThe sum of the vectors, L, is equal to 256 gray levels.
Step S5: calculation of Hist Using equation (6)LThe cumulative histogram of (a);
specifically, the Hist is calculated by equation (6)LThe cumulative histogram of (2).
The Cumsum _ Hist is a cumulative histogram of Hist _ L, and the value i at k point of the Cumsum _ Hist is from 0 to the Hist _ L cumulative value at k point.
More specifically, as shown in FIG. 2, FIG. 2 shows Hist _ Y2And adjusting u to 2, u to 5, and u to 6, wherein the curve vectors are output through the formula (4) and the formula (5), and HE is a histogram vector curve.
As shown in fig. 3, fig. 3 is an accumulation curve of vectors output when Hist _ L is 2, 5, and 6. HE-SUM is a cumulative histogram curve.
Step S6: performing energy-saving processing on the oled screen through an energy-saving formula (7);
specifically, in step S6, the energy-saving formula is specifically:
f(x)＝FP1xn+FP2xn-1+FP3xn-1…FPn (7)
wherein, [ F ]P1，FP2，FP3，…FPn]Is an energy-saving control parameter, x is an input controlled quantity, i.e. xi＝Cumsum_Histi，xiIs the value of the vector x at the i position.
Step S7: adjusting parameters for optimization on the basis of the energy-saving formula (7) in the step S6, and calculating an energy-saving curve F through the optimized formula (9)es；
Step S8: the energy saving curve F in step S7esMapping operation is carried out on Y to obtain new YUVesAnd the data is converted into RGB image data through a color space through a formula and is output to an OLED screen for display.
Specifically, in step S8, the specific steps are: an energy-saving curve F is obtained by setting u and beta numerical valuesesFor input Y channel, pass through energy-saving curve FesMapping to obtain the brightness Y after energy savinges，YesSynthesize a new YUV with UV channelesData, YUVesThe color space is converted into RGB image data through a formula (11) and output, and the output image is displayed on an oled screen, wherein the formula converted into the RGB image data output specifically comprises the following steps:
in a specific embodiment of the present application, in step S7, the oled screen energy saving is controlled by adjusting a β parameter, where a relation formula between the energy saving formula and β is specifically:
where β is the input of x of equation (8), pi，jIs a controlled quantity of a multiple equation, [ FP1，FP2，…，Fnn]Is the control amount of the formula (7).
The method for optimizing the complexity of the energy-saving operation is to take any one of a linear equation, a quadratic equation or a cubic equation of the formula (7) for operation.
As a preferred embodiment, taking the quadratic equation of formula (7) as an example for optimization, equation (9) is specifically as follows after formula (7) is simplified:
wherein F in the formula (9)esIs the output of the equation, [ FP1，FP2，FP3]Is the energy-saving control quantity.
Further, the economizer system is controlled by a beta parameter, using a beta quantity to control [ F [ ]P1，FP2，FP3]The numerical value can control the energy-saving intensity of an OLED screen, beta and [ F ]P1，FP2，FP3]Is embodied as
Wherein x in the formula is beta control quantity, pi，jIs an energy saving control parameter.
pi，jCan obtain the best p by training image data and sample datai，jNumerical values or finding the best p by solving the minimum error method of image data and sample datai，jValues, in one way for example: p found by minimum error method of image data and sample datai，jA set of values is shown in Table 1.
TABLE 1
From the above, it is possible to control the output of equation (10) by controlling β to control the energy saving intensity of equation (7)
As shown in fig. 4, when u is 6, β is output by energy saving curves of 2, 5, and 10, respectively, and β ranges between [0 and 30], and the larger the value, the more energy is saved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (10)
1. An automatic energy-saving method for a screen using dynamic pixel dimming and non-linear equations, comprising the steps of:
step S1: carrying out color and conversion on an input color image, and converting an RGB color gamut picture into YUV color gamut data;
step S2: performing histogram statistics on the luminance Y channel converted in the step S1, wherein the histogram vector after statistics is Hist _ Y1，Hist_Y1Regular to [0,65535]The vector of the interval is Hist _ Y2；
Step S3: for Hist _ Y2Performing correction processing to correct Hist _ Y2Becomes the desired curve vector Histadjust；
Step S4: hist solved in step S3adjustStandardizing to an L gray level, wherein the standardized matrix is Hist _ L;
step S5: calculation of Hist Using equation (6)LThe cumulative histogram of (a);
step S6: performing energy-saving processing on the oled screen through an energy-saving formula (7);
step S7: adjusting parameters for optimization on the basis of the energy-saving formula (7) in the step S6, and calculating an energy-saving curve F through the optimized formula (9)es；
Step S8: the energy saving curve F in step S7esMapping operation is carried out on Y to obtain new YUVesAnd converting the data into RGB image data through a color space by a formula and outputting the RGB image data to an OLED screen for display.
2. The screen automatic power saving method using dynamic pixel dimming and nonlinear equations as claimed in claim 1, wherein Hist _ Y is expressed according to formula (2) in step S21Is regulated to [0,65535]Within the interval, the following are specified:
Histmax＝MAX(Hist_Y2) (3)
wherein, Hist _ Y in the formula (2)1Is the histogram vector of the Y statistic, Hist _ Y2Is Hist _ Y1Normalized to [0,65535]Vector of intervals, M N is the height and width of Y, Hist in equation (3)maxIs Hist _ Y2Is measured.
3. The screen automatic power saving method using dynamic pixel dimming and nonlinear equations as claimed in claim 2, wherein the Hist _ Y is modified by adjusting the value of u in the formula (4) in step S32The formula for the desired curve vector is as follows:
wherein u is a histogram adjustment coefficient, and the value range of u is [0, 7 ]]In the section, the closer u is to 0, the flatter u is, and the closer u is to 7, the more undulated u is. HistadjustIs the vector after u correction.
4. The method for automatically saving power using dynamic pixel dimming and nonlinear equation screen of claim 3, wherein in the step S4, the formula for normalizing to L gray level is embodied as follows
Where Hist _ L is the normalized matrix, SUM (Hist)adjust) Is HistadjustThe sum of the vectors, L, is equal to 256 gray levels.
5. The screen automatic power saving method using dynamic pixel dimming and nonlinear equations of claim 4, wherein in step S5, the cumulative histogram of Hist _ L is calculated in a manner of:
where Cumsum _ Hist is a cumulative histogram of Hist _ L, and the value i at point k of Cumsum _ Hist is a Hist _ L cumulative value from 0 to point k.
6. The automatic power saving method using dynamic pixel dimming and nonlinear equation screen of claim 5, wherein in step S6, the power saving formula (7) is specifically:
wherein,
is an energy-saving control parameter, x is an input controlled quantity, i.e. xi＝Cumsum_Hist1，xiIs a vectorx value at position i.
7. The method of claim 6, wherein in step S7, the oled screen power saving is controlled by adjusting β parameter, wherein the relation formula between the power saving formula and β is:
where β is the input of x of equation (8), pi，jIs a controlled quantity that is a multiple-order equation,
is a control quantity of the formula (7) wherein pi，jCan obtain the best p by training image data and sample datai，jFinding optimal p by numerical value or by solving minimum error method of image data and sample datai，jThe value is obtained.
8. The screen automatic power saving method using dynamic pixel dimming and nonlinear equations as claimed in claim 7, wherein in step S7, the complexity of the power saving operation is optimized in such a manner that any one of a linear equation, a quadratic equation or a cubic equation of formula (7) is taken for operation.
9. The method for automatically saving power using dynamic pixel dimming and nonlinear equation screen of claim 8, wherein in step S7, the quadratic power saving equation of formula (7) is used for optimization, and formula (7) is simplified to be equation (9) as follows:
wherein F in the formula (9)esIs the output of the equation (a-b),
is the energy-saving control quantity.
10. The method for automatically saving energy by using dynamic pixel dimming and nonlinear equation screens according to claim 9, wherein in step S8, the specific steps are: an energy-saving curve F is obtained by setting u and beta numerical valuesesFor the input Y channel, pass through the energy-saving curve FesMapping to obtain the brightness Y after energy savinges,YesSynthesize a new YUV with UV channelesData, YUVesThe data is converted into RGB image data and output, and the output image is displayed on an oled screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210454490.7A CN114694582B (en) | 2022-04-27 | 2022-04-27 | Screen automatic energy-saving method using dynamic pixel dimming and nonlinear equation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210454490.7A CN114694582B (en) | 2022-04-27 | 2022-04-27 | Screen automatic energy-saving method using dynamic pixel dimming and nonlinear equation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114694582A true CN114694582A (en) | 2022-07-01 |
| CN114694582B CN114694582B (en) | 2024-05-31 |
Family
ID=82144009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210454490.7A Active CN114694582B (en) | 2022-04-27 | 2022-04-27 | Screen automatic energy-saving method using dynamic pixel dimming and nonlinear equation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114694582B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102117600A (en) * | 2010-01-04 | 2011-07-06 | 青岛海信电器股份有限公司 | Method for improving partitioned halation of LED (Light Emitting Diode) backlight source and control device thereof |
| JP2017530384A (en) * | 2014-12-26 | 2017-10-12 | 小米科技有限責任公司Ｘｉａｏｍｉ Ｉｎｃ． | Method and apparatus for adjusting display brightness |
| US20180090077A1 (en) * | 2016-03-15 | 2018-03-29 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Liquid crystal display apparatus and backlight control method thereof |
| CN108628571A (en) * | 2018-03-29 | 2018-10-09 | 西安电子科技大学 | A kind of display screen power-economizing method |
| US20200193891A1 (en) * | 2018-03-22 | 2020-06-18 | Boe Technology Group Co., Ltd. | Display method, display device, and display |
-
2022
- 2022-04-27 CN CN202210454490.7A patent/CN114694582B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102117600A (en) * | 2010-01-04 | 2011-07-06 | 青岛海信电器股份有限公司 | Method for improving partitioned halation of LED (Light Emitting Diode) backlight source and control device thereof |
| JP2017530384A (en) * | 2014-12-26 | 2017-10-12 | 小米科技有限責任公司Ｘｉａｏｍｉ Ｉｎｃ． | Method and apparatus for adjusting display brightness |
| US20180090077A1 (en) * | 2016-03-15 | 2018-03-29 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Liquid crystal display apparatus and backlight control method thereof |
| US20200193891A1 (en) * | 2018-03-22 | 2020-06-18 | Boe Technology Group Co., Ltd. | Display method, display device, and display |
| CN108628571A (en) * | 2018-03-29 | 2018-10-09 | 西安电子科技大学 | A kind of display screen power-economizing method |
Non-Patent Citations (2)
| Title |
|---|
| M. PONCINO;E. MACII: "Low-energy RGB color approximation for digital LCD interfaces", IEEE TRANSACTIONS ON CONSUMER ELECTRONICS, vol. 52, no. 3, 31 December 2006 (2006-12-31), pages 1004 - 1012 * |
| 严利民;潘浩;杜斌;殷晓文;: "一种改善LED显示屏亮度均匀性的算法", 量子电子学报, no. 04, 15 July 2017 (2017-07-15), pages 347 - 358 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114694582B (en) | 2024-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11335277B2 (en) | Method, apparatus, and device for adjusting backlight brightness based on human eye characteristics | |
| WO2017143635A1 (en) | Method and system for reducing power consumption of display panel | |
| US8063871B2 (en) | Low-power driving apparatus and method | |
| US10134345B1 (en) | Luminance adjustment method for RGBW LCD and apparatus thereof | |
| CN101918994B (en) | Methods for adjusting image characteristics | |
| CN105448245B (en) | Backlight illumination compensation method and display device | |
| US8681190B2 (en) | Liquid crystal display | |
| CN100397477C (en) | Image processing apparatus and method of improving brightness and image quality of display panel | |
| US20120162532A1 (en) | Liquid crystal display apparatus and television receiver | |
| US20070216636A1 (en) | Apparatus and method for controlling display backlight | |
| CN109686323B (en) | Display device, driving method thereof and electronic equipment | |
| CN108009993A (en) | Handle high dynamic range images method and module and use its display device | |
| CN101183513B (en) | Backlight processing system and method thereof | |
| US20080150863A1 (en) | Transmissive-type liquid crystal display device | |
| CN102298906A (en) | Liquid crystal display device | |
| CN104658512B (en) | Display method and display system | |
| CN104269149B (en) | Method for controlling display | |
| CN109979415B (en) | Method and system for converting RGB (red, green and blue) into RGBW (red, green and blue) | |
| CN101021625A (en) | Method for automatic regulating LCD brightness | |
| CN106454303A (en) | RGBW image processing method and apparatus | |
| CN101814279A (en) | Dynamic backlight liquid crystal display system and method | |
| US8026926B2 (en) | Image display device and image display method | |
| CN100412941C (en) | Brightness adjuster and adjusting method | |
| KR101715854B1 (en) | Method and unit converting color temperature for improving emotional image quality and digital display apparatus using the same | |
| CN114694582B (en) | Screen automatic energy-saving method using dynamic pixel dimming and nonlinear equation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |