CN106023885B - A kind of LED display automatic brightness adjustment method - Google Patents
A kind of LED display automatic brightness adjustment method Download PDFInfo
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- CN106023885B CN106023885B CN201610656530.0A CN201610656530A CN106023885B CN 106023885 B CN106023885 B CN 106023885B CN 201610656530 A CN201610656530 A CN 201610656530A CN 106023885 B CN106023885 B CN 106023885B
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000007613 environmental effect Effects 0.000 claims abstract description 12
- 230000035945 sensitivity Effects 0.000 claims abstract description 8
- 238000005070 sampling Methods 0.000 claims abstract description 7
- 239000000523 sample Substances 0.000 claims description 11
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000013507 mapping Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 241000023320 Luma <angiosperm> Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005282 brightening Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- OSWPMRLSEDHDFF-UHFFFAOYSA-N methyl salicylate Chemical compound COC(=O)C1=CC=CC=C1O OSWPMRLSEDHDFF-UHFFFAOYSA-N 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
Classifications
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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]
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/10—Intensity circuits
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- 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)
- Control Of El Displays (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
The present invention provides a kind of LED display automatic brightness adjustment method, comprising the following steps: setting sampling rate is periodically detected current environmental light brightness；Environmental light brightness is converted into corresponding brightness of display screen target value；Judge whether brightness of display screen target value is greater than the brightness of display screen minimum value of storage in the controller, be then controller on the basis of brightness of display screen current value, it is adjusted step by step to target value according to the brightness regulation sensitivity of storage in the controller, until brightness of display screen reaches target value, it is not to set brightness of display screen target value to store brightness of display screen minimum value in the controller, it is adjusted step by step to target value again, until brightness of display screen reaches target value.Automatic brightness adjustment of the present invention is adjusted step by step, more energy saving, convenient and hommization.
Description
Technical field
The invention belongs to HDMI signalling technique field more particularly to a kind of LED display automatic brightness adjustment methods.
Background technique
LED display adjusting at present substantially manually adjusts, and periodically adjusts and automatically adjust these three modes, and preceding two
Kind regulative mode does not need enviromental monitoring equipment, and automatically adjusts and need enviromental monitoring equipment, and practicability is stronger, becomes current bright
The mainstream adjusted is spent, manually adjusting is that user is adjusted manually according to ambient brightness, and personnel is needed to safeguard.It is root that timing, which is adjusted,
Brightness regulation is carried out according to the set period, daytime can be slightly brighter by display screen adjusting, slightly secretly adjustable at night
A bit, but it not can solve ambient brightness with the variation of weather.
In the entire brightness regulation of display screen, controller analysis processing environment data are keys, and past products application is done
Method is to establish look-up table, and by establishing the mapping table of environment light and LED display brightness, the way at initial stage is to pass through reality
It surveys, measured data is made into relation table, this relation table of malleable, different environment do not need different control to controller after the completion
Device brings difficulty to raw factory and debugging.
Summary of the invention
The present invention against the above technical problems, provides a kind of LED display automatic brightness adjustment method, the brightness of display screen
It is completely intelligent automatic regulated with environmental change.
The technical solution adopted by the present invention is as follows, and a kind of LED display automatic brightness adjustment method, this method passes through environment
Light collection equipment and controller carry out brightness regulation to display screen, comprising the following steps:
S1, setting sampling rate, are periodically detected current environmental light brightness；
S2, environmental light brightness is converted into corresponding brightness of display screen target value；
S3, judge whether brightness of display screen target value is greater than the brightness of display screen minimum value of storage in the controller；
If S4, step S3 judging result be it is yes, controller is on the basis of brightness of display screen current value, according to storage
Brightness regulation sensitivity in the controller is adjusted to target value step by step, until brightness of display screen reaches target value；
If S5, step S3 judging result be it is no, brightness of display screen target value is set as storing in the controller
Brightness of display screen minimum value, then adjusted step by step to target value according to step S4 from controller, until brightness of display screen reaches target
Value.
The controller is the multifunction card that light probe interface is had in the synchronous control system of LED display, described more
Function card connects control computer by sending card, and display screen minimum luminance value can be set by computer desktop software, adjust
Save sensitivity, ambient brightness sampling rate and can be with real-time display display screen present intensity value.
The device have the advantages that being:
Brightness of display screen realization is completely intelligent automatic regulated with environmental change, reduces user and does to automatic brightness adjustment
It relates to.
It adjusts step by step in real time, the imperceptible apparent brightness jump of observer meets the adaptation sense of observer.
The minimum brightness and regulations speed of display screen can be arranged in user according to different needs, reduce customization cost, symbol
Close personal settings.
255 grades of brightness of display screen without sectional-regulated, more energy efficient power saving.
Detailed description of the invention
Fig. 1 is functional block diagram used by automatic brightness adjustment of the present invention.
Fig. 2 is the flow chart of method provided by the present invention.
Fig. 3 is the display screen of the invention brightness adjustment approach.
Specific embodiment
Illustrate with reference to the accompanying drawing, the present invention is introduced in detail, it should be understood that only introduces below of the invention
Specific embodiment, and do not lie in and limit the scope of protection of the present invention.
The mapping table of environment light and LED display brightness, as shown in the table:
1 environment light of table and LED display brightness relationship table
| Environmental light brightness (Lux) | LED display brightness (%) |
| 100 | 10 |
| 190 | 19 |
| 280 | 28 |
| 370 | 37 |
| 460 | 46 |
The embodiment of the present invention, it is automatically bright on the basis of existing LED display brightness regulation to provide a kind of LED display
Adjusting method is spent, principle is as shown in Figure 1, auto brightness is mainly made of three parts: brightness detection probe, controller, LED are shown
Screen, brightness detection probe acquires ambient brightness data, and transfers data to controller；Controller control is according to the data transmitted
It is analyzed, calculates brightness of display screen target value, brightness target value is configured to LED display, realize auto brightness control
Purpose.
As shown in Fig. 2, specific method are as follows:
S1, setting sampling rate, are periodically detected current environmental light brightness；
S2, environmental light brightness is converted into corresponding brightness of display screen target value；
S3, judge whether brightness of display screen target value is greater than the brightness of display screen minimum value of storage in the controller；
If S4, step S3 judging result be it is yes, controller is on the basis of brightness of display screen current value, according to storage
Brightness regulation sensitivity in the controller is adjusted to target value step by step, until brightness of display screen reaches target value；
If S5, step S3 judging result be it is no, brightness of display screen target value is set as storing in the controller
Brightness of display screen minimum value, then adjusted step by step to target value according to step S4 from controller, until brightness of display screen reaches target
Value.
Controller is the multifunction card that light probe interface is had in the synchronous control system of LED display, Multifunctional cartoon
Cross sending card connection control computer, by computer desktop software can be set display screen minimum luminance value, adjust sensitivity,
Ambient brightness sampling rate and can be with real-time display display screen present intensity value.
Multifunction card connects control computer by sending card, and display screen minimum brightness is arranged by computer desktop software
Value, the minimum brightness of display screen can be set according to user's actual need, and range of luminance values is 0 ~ 255, such as be may be set to
100, adjust sensitivity (time needed for display screen present intensity value is adjusted to display screen target brightness value, as shown in Figure 3), environment
Luma samples rate, for example, by using 5 seconds sampling one ways.
Light probe samples environmental light brightness for the first time, brightness is converted into display screen target brightness value, if environment is current
Brightness is brighter, for example is on sunny daytime, and target brightness value (its value is assumed to be 250) is greater than display screen minimum brightness
Value, controller is incremented by configuration brightness of display screen value by initial value 0 step by step at this time, and records display screen present intensity value, at this point, aobvious
Display screen by secretly gradually brightening, until display screen present intensity value be 250, terminate this brightness regulation.
When external environment is dimmed, weather from it is sunny become the cloudy day when, the target brightness value that light probe sample conversion obtains becomes
Small (its value is assumed to be 200), display screen minimum luminance value is still greater than in value, at this time controller by display screen present intensity value by
Grade, which is successively decreased, configures brightness of display screen value, and records display screen present intensity value, and display screen is by bright dimmed, until display screen is currently bright
Angle value is 200, terminates this brightness regulation.
When external environment is darker, such as the cloudy day becomes the dim rainy day, or when becoming night from daytime, external environment brightness
Very dark, the target brightness value that light probe sample conversion obtains is smaller (its value is assumed to be 50), and it is bright that value is less than display screen minimum
Angle value, display screen target brightness value is first changed to display screen minimum luminance value by controller at this time, then by display screen present intensity value
Successively decrease step by step and configure brightness of display screen value, and record display screen present intensity value, display screen is by bright dimmed, until display screen is current
Brightness value is minimum luminance value.
By above-mentioned Automatic adjustment method, either becomes rainy days in sunny day or become night on daytime, in environment
When brightness changes, it is automatically performed brightness of display screen adjusting, is maintained at display screen always in most suitable brightness.
The embodiment of the present invention only introduces its specific embodiment, does not limit the protection scope thereof.The skill of the industry
Art personnel can make certain modifications under the inspiration of the present embodiment, therefore all equivalence changes done according to the invention patent range
Or modification, it belongs in the invention patent scope of the claims.
Claims (2)
1. a kind of LED display automatic brightness adjustment method, which is characterized in that this method passes through environment light collection equipment and control
Device carries out brightness regulation to display screen, comprising the following steps:
S1, setting sampling rate, are periodically detected current environmental light brightness；
S2, environmental light brightness is converted into corresponding brightness of display screen target value；
S3, judge whether brightness of display screen target value is greater than the brightness of display screen minimum value of storage in the controller；
If S4, step S3 judging result be it is yes, controller on the basis of brightness of display screen current value, according to be stored in control
Brightness regulation sensitivity in device processed is adjusted to target value step by step, until brightness of display screen reaches target value；
If S5, step S3 judging result be it is no, brightness of display screen target value is set to store display in the controller
Shield brightness minimum value, then adjusted step by step to target value according to step S4 from controller, until brightness of display screen reaches target value.
2. a kind of LED display automatic brightness adjustment method according to claim 1, which is characterized in that the controller
For the multifunction card for having light probe interface in the synchronous control system of LED display, the multifunction card is connected by sending card
Control computer is connect, display screen minimum luminance value can be set by computer desktop software, adjust sensitivity, ambient brightness and adopt
Sample rate and can be with real-time display display screen present intensity value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610656530.0A CN106023885B (en) | 2016-08-12 | 2016-08-12 | A kind of LED display automatic brightness adjustment method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610656530.0A CN106023885B (en) | 2016-08-12 | 2016-08-12 | A kind of LED display automatic brightness adjustment method |
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| Publication Number | Publication Date |
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| CN106023885A CN106023885A (en) | 2016-10-12 |
| CN106023885B true CN106023885B (en) | 2019-10-29 |
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| CN201610656530.0A Expired - Fee Related CN106023885B (en) | 2016-08-12 | 2016-08-12 | A kind of LED display automatic brightness adjustment method |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019028788A1 (en) * | 2017-08-10 | 2019-02-14 | 深圳益创信息科技有限公司 | Smart playback method and smart television |
| CN108540638A (en) * | 2018-01-31 | 2018-09-14 | 努比亚技术有限公司 | Screen intensity adjusts control method, terminal and computer storage media |
| CN108494963B (en) * | 2018-03-25 | 2020-11-13 | 东莞市华睿电子科技有限公司 | Brightness control method for mobile phone display screen |
| CN108877654A (en) * | 2018-06-29 | 2018-11-23 | 联想(北京)有限公司 | Electronic equipment and information processing method |
| CN111179821A (en) * | 2018-11-13 | 2020-05-19 | 上海芯辉电子有限公司 | System and method for controlling brightness of OLED organic panel |
| CN110400540A (en) * | 2019-07-09 | 2019-11-01 | 江苏金月亮科技有限公司 | A kind of brightness control system for LED display |
| CN110491345A (en) * | 2019-08-12 | 2019-11-22 | 铁将军汽车电子股份有限公司 | Automobile data recorder and its backlight brightness regulation method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103401970A (en) * | 2013-07-23 | 2013-11-20 | 广东欧珀移动通信有限公司 | Method and system for adjusting display screen backlight and mobile terminal |
| CN104168371A (en) * | 2014-08-08 | 2014-11-26 | Tcl通讯（宁波）有限公司 | Method for adjusting backlight brightness of mobile terminal and mobile terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2008501136A (en) * | 2004-06-01 | 2008-01-17 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Display device having light source |
| ATE417454T1 (en) * | 2005-10-31 | 2008-12-15 | Research In Motion Ltd | AUTOMATIC BRIGHTNESS ADJUSTMENT FOR THE SCREEN AND KEYBOARD OF A PORTABLE ELECTRONIC DEVICE |
| CN100418133C (en) * | 2006-03-31 | 2008-09-10 | 深圳创维一Rgb电子有限公司 | Self-adaptive control unit and method for display quality of TV |
| JP5542409B2 (en) * | 2009-10-27 | 2014-07-09 | 三菱電機株式会社 | Multi-screen display device |
| CN105185301B (en) * | 2015-08-12 | 2017-11-17 | 西安诺瓦电子科技有限公司 | Brightness of display screen adjusting method |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103401970A (en) * | 2013-07-23 | 2013-11-20 | 广东欧珀移动通信有限公司 | Method and system for adjusting display screen backlight and mobile terminal |
| CN104168371A (en) * | 2014-08-08 | 2014-11-26 | Tcl通讯（宁波）有限公司 | Method for adjusting backlight brightness of mobile terminal and mobile terminal |
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