CN104464650A - Automatic control system and method for display brightness - Google Patents
Automatic control system and method for display brightness Download PDFInfo
- Publication number
- CN104464650A CN104464650A CN201410836181.1A CN201410836181A CN104464650A CN 104464650 A CN104464650 A CN 104464650A CN 201410836181 A CN201410836181 A CN 201410836181A CN 104464650 A CN104464650 A CN 104464650A
- Authority
- CN
- China
- Prior art keywords
- module
- display
- analysis
- light intensity
- brightness
- 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.)
- Pending
Links
Landscapes
- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention provides an automatic control system for the display brightness. The automatic control system comprises a light sensing module, an analysis control module, a power module and a display module. The light sensing module is used for sensing the intensity of environment light rays and outputting light intensity signals to the analysis control module. The analysis control module conducts analysis judgment according to the light intensity signals and outputs voltage control signals to the power module. The power module adjusts the backlight voltage transmitted to the display module according to the voltage control signals, and the brightness of the display module changes along with the changes of the backlight voltage. According to an automatic control method for the display brightness, the backlight voltage of the display module is automatically adjusted according to the intensity of the light rays, and the display brightness of the display module is adjusted. By means of the automatic control system and method for the display brightness, the brightness of an independent liquid crystal display is automatically controlled, the functions of saving energy and reducing consumption are achieved, and the functions of relieving eye fatigue and protecting eyes are achieved.
Description
Technical field
The present invention relates to display technology field, particularly relate to a kind of display brightness automatic control system and method.
Background technology
Win8.1 system collocation optical inductor, can realize display brightness automatic regulation function.But this application is mainly applicable to panel computer, because there is optical inductor panel computer inside, the independent liquid crystal display of desktop computer collocation does not possess this function.In addition, even if there is dress optical inductor, Win8.1 system do not installed by computer, do not realize the automatic control of display brightness yet.
Realize display brightness automatic regulation function, be conducive to alleviating eye strain, thus, how desktop computer and Win8.1 system is not installed computer on realize the needs that the automatic regulatory work of display brightness meets vast computer user.
Summary of the invention
Based on the technical matters that background technology exists, the present invention proposes a kind of display brightness automatic control system and method.
A kind of display brightness automatic control system that the present invention proposes, comprising: photoinduction module, analysis and Control module, power module and display module;
Photoinduction module is for induced environment light intensity and to analysis and Control module output intensity signal; Analysis and Control module according to light intensity signal carry out analysis judge and to power module output voltage control signal; Power module regulates the backlight voltage being delivered to display module according to voltage control signal, the brightness of display module changes along with the change of backlight voltage.
Preferably, analysis and Control module adopts single-chip microcomputer.
Preferably, the light intensity signal that sent by I2C channel reception photoinduction module of single-chip microcomputer.
Preferably, voltage control signal is pwm signal, and analyzes judged result according to light intensity signal, and analysis and Control module exports the pwm signal of different duty.
A kind of display brightness autocontrol method that the present invention proposes, environmentally light intensity, regulates the backlight voltage of display module automatically, thus regulates display module display brightness; Specifically comprise the following steps:
Induced environment light intensity;
Environmentally light intensity controls the power supply to display module, thus regulates the backlight voltage of display module;
Display module is according to the change adjusting display brightness of backlight voltage.
The present invention is according to photoinduction and control technology; the function that display brightness regulates automatically along with the change of ambient light is easily realized by a photoinduction module and analysis and Control module; achieve the automatic control of the brightness to independent liquid crystal display; thus namely play the effect of energy-saving consumption-reducing; serve again alleviation kopiopia, the effect of protection eyes.And display brightness automatic control system provided by the invention and method are applicable to any liquid crystal display, applied range, and replicability is strong.
Accompanying drawing explanation
Fig. 1 is a kind of display brightness automatic control system structural drawing that the present invention proposes;
Fig. 2 is a kind of display brightness automatic control system process flow diagram that the present invention proposes.
Embodiment
With reference to Fig. 1, a kind of display brightness automatic control system that the present invention proposes, comprising: photoinduction module, analysis and Control module, power module and display module.
Photoinduction model calling is to analysis and Control module, and it is for induced environment light intensity and to analysis and Control module output intensity signal.
Analysis and Control model calling is to power module, and it carries out ambient light analysis judgement according to light intensity signal and to power module output voltage control signal.
In present embodiment, analysis and Control module adopts single-chip microcomputer, the light intensity signal that single-chip microcomputer is sent by I2C (Inter-Integrated Circuit, twin wire universal serial bus) channel reception photoinduction module.
In present embodiment, voltage control signal is pulse-length modulation (PWM) signal, and analyzes judged result according to light intensity signal, and analysis and Control module exports the pwm signal of different duty.Dutycycle is the ratio of square wave high level time with the cycle, and such as 1 second high level, 1 second low level PWM ripple dutycycle is 50%.Single-chip microcomputer can be controlled power module and power by the pwm signal exporting various different duty.
Power module is connected to display module, and it regulates the backlight voltage being delivered to display module according to voltage control signal, the brightness of display module changes along with the change of backlight voltage, thus can reach the object regulating display module display brightness.Particularly, display module comprises display screen and is positioned at the backlight at the display screen back side, and backlight voltage, by controlling the brightness of backlight, reaches the object regulating brightness of display screen.
A kind of display brightness autocontrol method that the present invention proposes, environmentally light intensity can regulate the backlight voltage of display module automatically, thus regulates display module display brightness.
With reference to Fig. 2, a kind of display brightness autocontrol method that the present invention proposes specifically comprises the following steps:
Step one, induced environment light intensity.
In present embodiment, be automatically adjusted to object with the brightness of display module along with the change of ambient light, so induced environment light is the basis of all.Display brightness automatic control system shown in composition graphs 1, this step is realized by photoinduction module, and light signal is converted into electric signal and is convenient to discriminance analysis by it.
Step 2, environmentally light intensity control the power supply to display module, thus regulate the backlight voltage of display module.
Control power supply by light intensity signal in this step, thus control the backlight voltage of display module.Display brightness automatic control system shown in composition graphs 1, this step is realized by analysis and Control module and power module.
Step 3, display module are according to the change adjusting display brightness of backlight voltage, and the change completed along with ambient light controls the object of display brightness automatically.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (5)
1. a display brightness automatic control system, is characterized in that, comprising: photoinduction module, analysis and Control module, power module and display module;
Photoinduction module is for induced environment light intensity and to analysis and Control module output intensity signal; Analysis and Control module according to light intensity signal carry out analysis judge and to power module output voltage control signal; Power module regulates the backlight voltage being delivered to display module according to voltage control signal, the brightness of display module changes along with the change of backlight voltage.
2. display brightness automatic control system as claimed in claim 1, is characterized in that, analysis and Control module adopts single-chip microcomputer.
3. display brightness automatic control system as claimed in claim 2, is characterized in that, the light intensity signal that single-chip microcomputer is sent by I2C channel reception photoinduction module.
4. the display brightness automatic control system as described in claim 1 or 2 or 3, is characterized in that, voltage control signal is pwm signal, and analyzes judged result according to light intensity signal, and analysis and Control module exports the pwm signal of different duty.
5. a display brightness autocontrol method, is characterized in that, environmentally light intensity, automatically regulates the backlight voltage of display module, thus regulates display module display brightness; Specifically comprise the following steps:
Induced environment light intensity;
Environmentally light intensity controls the power supply to display module, thus regulates the backlight voltage of display module;
Display module is according to the change adjusting display brightness of backlight voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410836181.1A CN104464650A (en) | 2014-12-29 | 2014-12-29 | Automatic control system and method for display brightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410836181.1A CN104464650A (en) | 2014-12-29 | 2014-12-29 | Automatic control system and method for display brightness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104464650A true CN104464650A (en) | 2015-03-25 |
Family
ID=52910609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410836181.1A Pending CN104464650A (en) | 2014-12-29 | 2014-12-29 | Automatic control system and method for display brightness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104464650A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105459865A (en) * | 2015-11-19 | 2016-04-06 | 广东好帮手电子科技股份有限公司 | Vehicle-mounted back-row headrest with intelligent adjustment display function and implementation method |
| CN105719618A (en) * | 2016-03-30 | 2016-06-29 | 深圳市蓝视界科技有限公司 | Method for saving energy by means of automatically adjusting brightness of mobile phone screen |
| CN106409235A (en) * | 2015-08-03 | 2017-02-15 | 深圳前海智云谷科技有限公司 | Vehicle HUD backlight adjusting method and apparatus |
| CN107478328A (en) * | 2017-09-19 | 2017-12-15 | 珠海格力电器股份有限公司 | Photosensitive device, display brightness adjusting system and display |
| CN108597455A (en) * | 2018-03-28 | 2018-09-28 | 昆山龙腾光电有限公司 | Threshold value recording device, method and threshold value programming system and method |
| CN109523977A (en) * | 2018-12-10 | 2019-03-26 | 惠州Tcl移动通信有限公司 | Backlight adjusting method, device, mobile terminal and storage medium |
| CN110060623A (en) * | 2019-04-30 | 2019-07-26 | 嘉兴钛众电子科技有限公司 | A kind of adjusting method of screen intensity |
| CN114666523A (en) * | 2022-03-30 | 2022-06-24 | 湖南格为科技有限公司 | Energy-saving liquid crystal television capable of automatically adapting to human eye brightness |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101367353A (en) * | 2007-08-14 | 2009-02-18 | 比亚迪股份有限公司 | Apparatus and method for governing display lightness of automobile instrument |
| CN101789218A (en) * | 2010-01-26 | 2010-07-28 | 南京Lg新港显示有限公司 | Light-adjusting method of light-emitting diode backlight |
| CN202454229U (en) * | 2012-02-17 | 2012-09-26 | 中南林业科技大学 | Screen brightness adjustment circuit of navigator |
| CN203005235U (en) * | 2012-11-28 | 2013-06-19 | 比亚迪股份有限公司 | Backlight regulation device for vehicle-mounted meter |
| CN203055408U (en) * | 2012-12-18 | 2013-07-10 | 中航华东光电有限公司 | Liquid crystal display allowing backlight to be adjusted automatically |
| CN103903570A (en) * | 2012-12-26 | 2014-07-02 | 深圳合众思壮科技有限公司 | Automatic backlight brightness adjusting method, adjusting device and display |
-
2014
- 2014-12-29 CN CN201410836181.1A patent/CN104464650A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101367353A (en) * | 2007-08-14 | 2009-02-18 | 比亚迪股份有限公司 | Apparatus and method for governing display lightness of automobile instrument |
| CN101789218A (en) * | 2010-01-26 | 2010-07-28 | 南京Lg新港显示有限公司 | Light-adjusting method of light-emitting diode backlight |
| CN202454229U (en) * | 2012-02-17 | 2012-09-26 | 中南林业科技大学 | Screen brightness adjustment circuit of navigator |
| CN203005235U (en) * | 2012-11-28 | 2013-06-19 | 比亚迪股份有限公司 | Backlight regulation device for vehicle-mounted meter |
| CN203055408U (en) * | 2012-12-18 | 2013-07-10 | 中航华东光电有限公司 | Liquid crystal display allowing backlight to be adjusted automatically |
| CN103903570A (en) * | 2012-12-26 | 2014-07-02 | 深圳合众思壮科技有限公司 | Automatic backlight brightness adjusting method, adjusting device and display |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106409235A (en) * | 2015-08-03 | 2017-02-15 | 深圳前海智云谷科技有限公司 | Vehicle HUD backlight adjusting method and apparatus |
| CN105459865A (en) * | 2015-11-19 | 2016-04-06 | 广东好帮手电子科技股份有限公司 | Vehicle-mounted back-row headrest with intelligent adjustment display function and implementation method |
| CN105719618A (en) * | 2016-03-30 | 2016-06-29 | 深圳市蓝视界科技有限公司 | Method for saving energy by means of automatically adjusting brightness of mobile phone screen |
| CN107478328A (en) * | 2017-09-19 | 2017-12-15 | 珠海格力电器股份有限公司 | Photosensitive device, display brightness adjusting system and display |
| CN108597455A (en) * | 2018-03-28 | 2018-09-28 | 昆山龙腾光电有限公司 | Threshold value recording device, method and threshold value programming system and method |
| CN109523977A (en) * | 2018-12-10 | 2019-03-26 | 惠州Tcl移动通信有限公司 | Backlight adjusting method, device, mobile terminal and storage medium |
| CN110060623A (en) * | 2019-04-30 | 2019-07-26 | 嘉兴钛众电子科技有限公司 | A kind of adjusting method of screen intensity |
| CN114666523A (en) * | 2022-03-30 | 2022-06-24 | 湖南格为科技有限公司 | Energy-saving liquid crystal television capable of automatically adapting to human eye brightness |
| CN114666523B (en) * | 2022-03-30 | 2023-10-27 | 湖南格为科技有限公司 | Energy-saving liquid crystal television capable of automatically adapting to human eye brightness |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104464650A (en) | Automatic control system and method for display brightness | |
| CN103077684B (en) | A kind of backlight adjusting method, device and display screen | |
| CN101211538A (en) | Backlight brightness regulating method | |
| CN201773565U (en) | Special type backlight source driving circuit with MOS tube driving circuit | |
| CN205301734U (en) | Intelligence sunglasses | |
| CN104469022A (en) | Backlight lamp regulation method and system and handheld terminal | |
| CN205546079U (en) | Permanent illuminance LED controller based on wiFi | |
| CN204577063U (en) | Based on the all-in-one of surround lighting dynamic adjustments liquid crystal display backlight illumination | |
| CN102751698A (en) | Overvoltage protection circuit, power module and overvoltage protection method | |
| WO2011022381A3 (en) | System and method for controlling a solar panel output | |
| CN105323928A (en) | Color temperature adjusting system and method for LED | |
| CN201069504Y (en) | Automatic back light control device for flat plate display | |
| CN202093761U (en) | Intelligent liquid crystal digital photo frame | |
| CN205546038U (en) | LED self -adaptation dimming control device | |
| CN201965894U (en) | Automatic display brightness adjusting and control device | |
| CN201780764U (en) | Special backlight driving circuit based on FPGA | |
| CN104955230A (en) | Backlight source control circuit and display terminal | |
| CN207053836U (en) | A kind of LED high-voltage driving circuit with dimming function | |
| CN205726569U (en) | Illumination monitoring device containing binary channels high-power LED drive circuit | |
| US20140333227A1 (en) | Light Source Module, Light Source Module Driving Circuit and Driving Method | |
| CN205264317U (en) | Intelligent display equipment back of body light controlling circuit | |
| CN104361880A (en) | Automatic laptop screen dimming system | |
| CN204558000U (en) | A kind of liquid crystal display backlight self-adjusting circuit | |
| CN203433779U (en) | Power supply and dimming circuit of display screen backlight control chip | |
| CN203201845U (en) | Fan energy-saving controller in modular design |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150325 |
|
| RJ01 | Rejection of invention patent application after publication |