CN110491342A - A kind of low-power consumption display methods for AMOLED display drive apparatus - Google Patents
A kind of low-power consumption display methods for AMOLED display drive apparatus Download PDFInfo
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- CN110491342A CN110491342A CN201910899800.4A CN201910899800A CN110491342A CN 110491342 A CN110491342 A CN 110491342A CN 201910899800 A CN201910899800 A CN 201910899800A CN 110491342 A CN110491342 A CN 110491342A
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- 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]
- G09G3/3225—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] using an active matrix
-
- 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
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
-
- 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
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- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The invention discloses a kind of low-power consumption display methods for AMOLED display drive apparatus, step includes: that the RGB data of 1. original images is converted to YUV color space image data；2. the Y-component of pair YUV color space data, which is averaged, is set as S；3. a compensation node M is arranged, if nodal value M is less than average value S, then the Y-component less than nodal value M is not processed, nodal value M is greater than less than average value S's to Y-component, Y-component is multiplied by coefficient L, to the Y-component greater than average value multiplied by coefficient H, if nodal value M is greater than average value S, then the Y-component value less than average value S is not processed, to the Y-component value greater than average value S multiplied by COEFFICIENT K；4. processed YUV color space image data are transformed into rgb color space, and export display.The present invention can be effectively reduced the power consumption of driving device, and structure is simple, and picture quality is preferable.
Description
Technical field
It is more specifically a kind of for AMOLED display driving the present invention relates to image procossing and field of display technology
The low-power consumption display methods of device.
Technical background
In current display technology, active array active light emissive diode (AMOLED) is relative to liquid crystal display, (LCD) tool
There is self-luminous, the series of advantages such as ultra-thin, reaction speed is fast, and colour gamut is wide, high contrast, and flexibility is good, so current display
Technology is gradually as master.How to extend stand-by time, reduces display screen power consumption, it has also become low-power consumption research field extensive concern
The problem of.Some low-power consumption display technologies for previous LCD display, if content-adaptive brightness controls (CABC), environment
The technology that adaption brightness control etc. develops comparative maturity has not been suitable for AMOLED.Therefore, it is applicable to the low function of AMOLED
The research of consumption display technology seems very necessary.
AMOLED is a kind of current driving apparatus, its display brightness and size of current direct proportionality, brightness is higher
The problem of electric current is also bigger, and big electric current can bring about high power consumption the and low service life, and the luminous efficiency of AMOLED is higher,
Brightness value is too high to bring discomfort to eyes instead.So generally low-light level processing can be done to the image for being sent into AMOLED.
Summary of the invention
The present invention is in place of overcoming the shortcomings of the prior art, to propose a kind of for the low of AMOLED display drive apparatus
Energy consumption display method, to which brightness of image can be automatically adjusted according to image data, to reach the mesh for reducing display driving power consumption
's.
The present invention adopts the following technical scheme that in order to solve the technical problem
A kind of the characteristics of low-power consumption display methods for AMOLED display drive apparatus of the invention be as follows into
Row:
Step 1. obtains the rgb color space data of original image, and is converted to YUV color space data using formula (1)；
Step 2. counts the Y-component of YUV color space data, and seeks the average value S of Y-component as institute using formula (2)
State the average brightness of original image；
In formula (2), M and N be respectively the original image total line number and total columns；I and J is appointing for the original image
One line number and any columns；
A compensation node M is arranged in step 3., and is compared place with the Y-component of all pixels of original image point
After reason, YUV color space data after being reduced brightness:
If compensation compensation node M is less than average value S, all Y-components for being less than or equal to compensation node M are not processed,
To all Y-components greater than compensation node M and less than average value S multiplied by coefficient L, to all Y-components for being more than or equal to average value S
Multiplied by coefficient H；Wherein, coefficient L and coefficient H is the natural number between 0~1；
If the compensation node M is more than or equal to average value S, all Y-component values less than or equal to average value S are not done and are located
Reason, to all Y-component values greater than average value S multiplied by COEFFICIENT K；The wherein natural number that COEFFICIENT K is 0~1；
YUV color space data after the reduction brightness is transformed into rgb color space number using formula (3) by step 4.
According to, and export display；
In formula (3), R ' G ' B ' is the original image reduced after brightness, and Y ' U ' V ' is the YUV color space reduced after brightness
Data.
Compared with the prior art, the invention has the following advantages that
1, it is compared to original method for reducing display drive apparatus power consumption, the present invention can automatically adjust aobvious according to image
Show brightness, display power consumption is reduced with this, and image detail, image can preferably be retained according to the regulative mode of characteristics of image
Reduction degree is high, and regulative mode is also relatively simple.
2, the present invention can improve the excessively bright caused display excessively high problem of power consumption of display panel very well, and be integrated in driving IC
In, reduce application processor task complexity.
Detailed description of the invention
Fig. 1 is the method for the present invention flow chart；
Fig. 2 is that present invention compensation node M is less than average value S signal line chart；
Fig. 3 is that present invention compensation node M is more than or equal to average value S signal line chart.
Specific embodiment
In the present embodiment, as shown in Figure 1, a kind of low-power consumption display methods for AMOLED display drive apparatus is by such as
Flow chart shown in Fig. 1 carries out:
Step 1. obtains the rgb color space data of original image, and is converted to YUV color space data using formula (1)；
Step 2. counts the Y-component of YUV color space data, and seeks the average value S of Y-component as original using formula (2)
The average brightness of beginning image；
In formula (2), M and N be respectively original image total line number and total columns；I and J be original image any line number and
Any columns；
A compensation node M is arranged in step 3., and is compared processing with the Y-component of all pixels of original image point
Afterwards, the YUV color space data after being reduced brightness:
As shown in Fig. 2, Fig. 2 is that compensation node M is less than average value S signal line chart, compensation node M is less than flat in line chart
Mean value S is then not processed all Y-components for being less than or equal to compensation node M, if to being greater than compensation node M and being less than average value S
All Y-components multiplied by coefficient L, to all Y-components more than or equal to average value S multiplied by coefficient H；That is S is as an inflection point, greatly
In all Y-components equal to average value S multiplied by another coefficient.Wherein, coefficient L and coefficient H is the natural number between 0~1；
As shown in figure 3, Fig. 3 is that compensation node M is more than or equal to average value S signal line chart, if compensation node M is more than or equal to
Average value S is then not processed all Y-component values less than or equal to average value S, multiplies to all Y-component values greater than average value S
With COEFFICIENT K；The wherein natural number that COEFFICIENT K is 0~1；
Wherein, the Y-component calculation formula of output pixel are as follows:
YO=YI×C (3)
In formula (3), YIIt is the Y-component of original image, YOIt is the value after output, C is coefficient, according to judging original pixels
Size can be coefficient L and be also possible to coefficient H.
YUV color space data after reducing brightness is transformed into rgb color space data using formula (3) by step 4., and
Output display；
In formula (4), R ' G ' B ' is the original image reduced after brightness, and Y ' U ' V ' is the YUV color space reduced after brightness
Data.
Claims (1)
1. a kind of low-power consumption display methods for AMOLED display drive apparatus, it is characterized in that carrying out as follows:
Step 1. obtains the rgb color space data of original image, and is converted to YUV color space data using formula (1)；
Step 2. counts the Y-component of YUV color space data, and seeks the average value S of Y-component as the original using formula (2)
The average brightness of beginning image；
In formula (2), M and N be respectively the original image total line number and total columns；I and J is any row of the original image
Several and any columns；
A compensation node M is arranged in step 3., and is compared processing with the Y-component of all pixels of original image point
Afterwards, the YUV color space data after being reduced brightness:
If compensation compensation node M is less than average value S, all Y-components for being less than or equal to compensation node M are not processed, to big
In compensation node M and all Y-components less than average value S are multiplied by coefficient L, to all Y-components more than or equal to average value S multiplied by
Coefficient H；Wherein, coefficient L and coefficient H is the natural number between 0~1；
If the compensation node M is more than or equal to average value S, all Y-component values less than or equal to average value S are not processed,
To all Y-component values greater than average value S multiplied by COEFFICIENT K；The wherein natural number that COEFFICIENT K is 0~1；
YUV color space data after the reduction brightness is transformed into rgb color space data using formula (3) by step 4., and
Output display；
In formula (3), R ' G ' B ' is the original image reduced after brightness, and Y ' U ' V ' is the YUV color space data reduced after brightness.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113077758A (en) * | 2021-03-29 | 2021-07-06 | 联想(北京)有限公司 | Control method and device and electronic equipment |
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| EP2693422A2 (en) * | 2012-08-03 | 2014-02-05 | InnoLux Corporation | Display apparatus and image control method thereof |
| CN104299574A (en) * | 2014-11-13 | 2015-01-21 | 中颖电子股份有限公司 | Automatic current limiting method for OLED (Organic Light Emitting Diode) display driving device |
| US20170229052A1 (en) * | 2016-02-05 | 2017-08-10 | Intel Corporation | Color Space Conversion Logic Having Reduced Conversion Error |
| CN108831409A (en) * | 2018-04-23 | 2018-11-16 | 遵义师范学院 | A kind of image display driving method |
| CN110223658A (en) * | 2019-04-22 | 2019-09-10 | 北京集创北方科技股份有限公司 | Method, apparatus, equipment and the display device of display brightness control |
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2019
- 2019-09-23 CN CN201910899800.4A patent/CN110491342A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100426870C (en) * | 2002-04-08 | 2008-10-15 | 松下电器产业株式会社 | Video signal processing apparatus and video signal processing method |
| EP2693422A2 (en) * | 2012-08-03 | 2014-02-05 | InnoLux Corporation | Display apparatus and image control method thereof |
| CN104299574A (en) * | 2014-11-13 | 2015-01-21 | 中颖电子股份有限公司 | Automatic current limiting method for OLED (Organic Light Emitting Diode) display driving device |
| US20170229052A1 (en) * | 2016-02-05 | 2017-08-10 | Intel Corporation | Color Space Conversion Logic Having Reduced Conversion Error |
| CN108831409A (en) * | 2018-04-23 | 2018-11-16 | 遵义师范学院 | A kind of image display driving method |
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Application publication date: 20191122 |