CN107665695A - dynamic brightness control method for display device - Google Patents
dynamic brightness control method for display device Download PDFInfo
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- CN107665695A CN107665695A CN201610614855.2A CN201610614855A CN107665695A CN 107665695 A CN107665695 A CN 107665695A CN 201610614855 A CN201610614855 A CN 201610614855A CN 107665695 A CN107665695 A CN 107665695A
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- dynamic
- signal
- brightness
- brightness control
- display device
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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
- 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)
- Controls And Circuits For Display Device (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The present embodiments relate to a kind of dynamic brightness control method for display device, including：Module output brightness control signal occurs for Dynamic Signal；The brightness control signal has the signal value that dynamic changes；Intednsity circuit loads the brightness control signal, and exports the first power supply signal according to the brightness control signal；First power supply signal has the electric parameter that dynamic changes；The display device dynamically changes display output brightness under first power supply signal driving, is shown so as to the display screen of the display device with the brightness of dynamic change.
Description
Technical field
The present invention relates to lighting technical field, more particularly to a kind of dynamic brightness control method for display device.
Background technology
Vision Health has become a major issue of people's common concern.According in June, 2015 China of Peking University
Sound development research center《National health visual report》Research, in more than the 5 years old total population in China in 2012, myopia and long sight
Number of patients about 500,000,000, wherein myopia total number of patients 4.5 hundred million or so.
According to another investigation display in 2015, the daily leisure time of China compatriots was averagely 2.55 hours, wherein 1/3 leisure
Time with internet, especially on mobile phone；1/6 leisure time is seeing TV；1/10 leisure time is carrying out paper
This reading of matter.It can be seen that with the development in epoch, amusement and recreation have been carried out using electronic equipments such as computer, smart mobile phone, television sets
Through occupying main leisure time.In addition electronic office, the face of the daily plenty of time such as propulsion, working clan, student of teaching
To computer screen, projection screen.
The long-term screen in face of equipment such as computer, mobile phone, TV, projections, eyes are most susceptible to infringement.These equipment
Display screen in use, manually adjusts except non-artificial, otherwise can be shown for a long time under same display parameters.Beholder
Eyes for a long time stare at screen, its eye structure, including pupil, ciliary muscle and crystalline lens are all chronically at a state, make
Into human eye visual fatigue, the problems such as ghost image, eye-blurred can be caused, Vision Health is had a strong impact on.
The content of the invention
It is an object of the invention to provide a kind of dynamic brightness control method for display device, display can be automatically controlled
The dynamic of the display screen display brightness of device changes, so that the ocular physiology structure of beholder is also mutually strained therewith
Change, the easy visual fatigue of eye is used so as to effectively solve the problems, such as that user plane is long-term to display screen；By rationally controlling display brightness
Dynamic change rate so that beholder can not subjective perception brightness change, while the normal use of beholder is not influenceed,
Protect the Vision Health of beholder.
To achieve the above object, the embodiments of the invention provide a kind of dynamic brightness control method for display device,
Including：
Module output brightness control signal occurs for Dynamic Signal；The brightness control signal has the signal that dynamic changes
Value；
Intednsity circuit loads the brightness control signal, and is believed according to the power supply of brightness control signal output first
Number；First power supply signal has the electric parameter that dynamic changes；
The display device dynamically changes display output brightness under first power supply signal driving, so as to the display
The display screen of device is shown with the brightness of dynamic change.
Preferably, methods described also includes：According to the dynamic change of the brightness of display screen so that beholder's eye structure
With the dynamic change of the brightness of the display screen, dynamic changes.
Preferably, the dynamic change is specially：
Within any 0.1 second period, the rate of change of the brightness of the display screen is not more than 0.02.
Preferably, the brightness control signal includes:Analog voltage signal, analog current signal or data signal.
Preferably, module, which occurs, for the Dynamic Signal includes：Hardware circuit module and/or software program module.
Preferably, the electric parameter includes：Electric current and/or voltage.
Preferably, the electric parameter includes：Potential difference.
Preferably, display device includes:
Any of equipment with backlit display screen, the equipment with CRT display screens or projector equipment.
Preferably, the Dynamic Signal generation module output brightness control signal is specially：
Module occurs for the Dynamic Signal according to user's triggering command, exports the brightness control signal；Or
The Dynamic Signal occurs module and obtains the brilliance control patterns information of preset storage in memory, output
The brightness control signal.
Dynamic brightness control method provided in an embodiment of the present invention for display device, being capable of automatic control display device
The dynamic of display screen display brightness change so that the ocular physiology structure of beholder also carries out respective change therewith, from
And effectively solve the problems, such as that user plane is long-term to display screen and use the easy visual fatigue of eye, protect the Vision Health of beholder.
Brief description of the drawings
Fig. 1 is the flow chart of the dynamic brightness control method provided in an embodiment of the present invention for display device；
Fig. 2 is a kind of structural representation of display device provided in an embodiment of the present invention；
Fig. 3 is another structural representation of display device provided in an embodiment of the present invention.
Embodiment
Below by drawings and examples, technical scheme is described in further detail.
The invention provides a kind of dynamic brightness control method, in display device so that the display screen of display device
Shown with the brightness of dynamic change.
In order to be better understood from dynamic brightness control method proposed by the invention, human eyes structure is changed with light first
Principle illustrate：
When the parameters such as the illumination of injection human eye light, colour temperature, luminous intensity, brightness, luminous flux, angle change, people
The iris of eye will change the size of active accommodation pupil with light, so as to control luminous flux.The athletic meeting of iris drives ciliary muscle
Motion, the motion of ciliary muscle will also drive lenticular motion, and so as to produce, so-called in visual field " eyes regard photosystem three
Linkage ".Above-mentioned iris, ciliary muscle and lenticular ganged movement change the physiological structure for making eyes, i.e., in iris, eyelash
Changed in shape flesh and lenticular shape and/or size.
The dynamic brightness control method of the present invention is to be proposed based on above-mentioned principle.
Fig. 1 is the flow chart for the dynamic brightness control method that the present embodiment provides, as shown in figure 1, dynamic brightness controlling party
Method comprises the following steps：
Step 10, module output brightness control signal occurs for Dynamic Signal；
Specifically, the brightness control signal has the signal value that dynamic changes.
Brightness control signal can include analog voltage signal, analog current signal or data signal.
Module output brightness control signal occurs for Dynamic Signal, can be exported according to the triggering command of user, also may be used
Be according to read prestore be set for output.
In the first scheme, module, which occurs, for Dynamic Signal can receive user's triggering command, pass through user's triggering command
Corresponding brilliance control patterns selection, and the brilliance control patterns selected according to user are carried out, export brightness control signal.
Receiving user's triggering command can realize especially by wired or wireless way.
Such as the luminance patterns selection key by being set in sensing user touch display device, or sensing user's rotation
Turn the luminance patterns adjusting knob set in display device, or remote control equipment operated by radio transceiver user,
Such as remote control, the remote input of the brilliance control patterns of progress.The dynamic change of brightness can be included in brilliance control patterns
Scope, transformation period etc..
In second scheme, the brilliance control patterns that module reading prestores occur for the Dynamic Signal of display device
Information, display device export corresponding brightness control signal according to the information of the brilliance control patterns of acquisition.Usual second of side
Case performs automatically when can electrically activating on the display apparatus.
Brilliance control patterns information can be stored in the memory of display device, and module occurs to storage by Dynamic Signal
Device conducts interviews to read and obtained.Memory can include local storage, can also include cloud storage unit.Memory can be
The solid state non-volatile semiconductor memory of rom chip or any other type.To writing default Lighting control in memory
The mode of signal can be realized by wired input mode, can also be such as infrared by being connected to the interface of memory
Interface, blue tooth interface, USB interface etc. are realized.
In concrete implementation, module, which occurs, for Dynamic Signal to be realized by hardware circuit, can also pass through loading
There is the module of software program to realize, or realized by the way of software program combines with hardware circuit.
Step 20, intednsity circuit loads the brightness control signal, and is supplied according to brightness control signal output first
Electric signal；
Specifically, intednsity circuit is the circuit for providing driving electric signal to the brightness regulation of display device.
Under the driving of the brightness control signal of the signal value changed with dynamic, the first power supply signal of output has the electricity that dynamic changes
Gas parameter.
The display devices such as smart mobile phone, the LCD TV of display brightness, electricity are controlled for projecting apparatus and using back light
Gas parameter can specifically refer to electric current and voltage, including the size of current of the magnitude of voltage of voltage, rate of change, electric current, rate of change etc.,
Or can also be both voltage and currents it is therein any one.
For cathode-ray tube (CRT) display, brilliance control is how many come certainly by the transmitting of tube cathode electronics
Fixed, therefore electric parameter can specifically refer to the potential difference between the grid of kinescope and negative electrode.
Step 30, display device dynamically changes display output brightness under first power supply signal driving, so as to show
The display screen of device is shown with the brightness of dynamic change.
Display screen mentioned here includes the display screen of entity, such as liquid crystal display, also including virtual display screen, such as projects shape
Into display screen.
Display device dynamically changes display output brightness under the driving of the first power supply signal, has for different display devices
Different implementations：
For the display device with backlit display, such as LCD TV, mobile phone, driven and carried on the back by the first power supply signal
Optical mode group, dynamic change backlight, so as to the output brightness of the note-book computer display screen of dynamic change, LCD TV screen etc..
For the display device with cathode-ray tube display, such as cathode-ray tube (CRT) TV, pass through the first power supply
The grid of signal control kinescope and the potential difference of negative electrode, changing the power of electron beam so that raster brightness dynamic changes, so as to
Dynamic changes the output brightness of cathode-ray tube display screen.
For conventional projector, changed by the luminosity dynamic of the first power supply signal drive control bulb, so that
The display brightness for obtaining projection screen also dynamically changes.
For LED projector, main LED body (electroluminescent semi-conducting material) is driven by the first power supply signal, obtains LED
The output intensity of projecting apparatus accordingly dynamically changes, so that also corresponding dynamic changes the display brightness of projection screen.
In order to ensure the normal display of display device, do not interfere with beholder and the display output of display device is carried out normally
Viewing, the first power supply signal driving dynamic change display output brightness, caused by display screen brightness dynamic change need exist
The rate of change of brightness is all not more than 0.02 in any one 0.1 second period.
The foundation so set is that eyes have visual persistence, i.e., light is as once being formed on the retina, vision will be right
The sensation of this light elephant maintains a limited time, and this physiological phenomenon is called the persistence of vision.It is temporary for varying environment, vision
The length of time difference is stayed, brightness is stronger, and the retentivity time of eye is shorter.And the use environment for display device is directed to,
In the environment of intermediate light, the retentivity time of eye is about 0.1 to 0.4 second.Thus in 0.1 second time range, pass through setting
The rate of change of brightness is not more than 0.02, to ensure that change of the light within each retentivity time of eye is small so that
The beholder of display device can not perceive the dynamic change of brightness generation, so as to produce any influence to normal viewing.
Step 40, according to the dynamic change of the brightness of display screen so that beholder's eye structure is with the display screen
The dynamic change of brightness and dynamic changes.
Exported by the display brightness of dynamic change caused by above-mentioned steps 10 to step 30 so that beholder's eye knot
One or several in structure, including iris, ciliary muscle and crystalline lens, with the dynamic change of brightness, dynamic changes.And pass through
To the reasonable set of rate of change of brightness in the retentivity time of eye so that beholder can not subjective perception to display brightness dynamic
Change, so as to which any influence will not be produced on normal viewing.
Dynamic brightness control method provided in an embodiment of the present invention for display device, being capable of automatic control display device
Display screen display brightness dynamic change so that the ocular physiology structure of beholder also carries out respective change therewith, so as to have
Effect solves the problems, such as that user plane is long-term to display screen and uses the easy visual fatigue of eye；By the dynamic change for rationally controlling display brightness
Rate so that beholder can not subjective perception brightness change, while the normal use of beholder is not influenceed, protect viewing
The Vision Health of person.
Accordingly, the embodiment of the present invention additionally provides the display device using above dynamic brightness control method.Display dress
The structural representation put is specifically as shown in Figure 2.
The display device that the present embodiment provides includes：Module 1, intednsity circuit 2, brightness light source hair occur for Dynamic Signal
Generating apparatus 3 and display screen 4.
Dynamic Signal occurs module 1 and exports brightness control signal；Brightness control signal has the signal value that dynamic changes；
Intednsity circuit 2 loads Dynamic Signal and the brightness control signal that module 1 exports occurs, and is believed according to brilliance control
Number output the first power supply signal；First power supply signal has the electric parameter that dynamic changes；
Brightness light source generating means 3 dynamically changes display output brightness under the driving of the first power supply signal, so that aobvious
The display screen 4 of showing device is shown with the brightness of dynamic change.
Display device described in the present embodiment can be the equipment with backlit display screen, the equipment with CRT display screens
Or projector equipment etc., it can specifically include：Smart mobile phone, notebook computer, desktop computer display, LCD TV, CRT electricity
Depending on equipment such as, projecting apparatus.
Accordingly, different display devices is directed to, brightness light source generating means 3 has different implementations：
For the display device with backlit display screen, such as LCD TV, mobile phone, brightness light source generating means 3 is the back of the body
Optical mode group.Backlight module is driven by the first power supply signal, dynamic changes backlight, so as to which the notebook computer that dynamic changes is shown
The output brightness of screen, LCD TV screen etc..
For the display device with CRT display screens, such as CRT TVs, brightness light source generating means 3 is kinescope.Pass through
The grid of first power supply signal control kinescope and the potential difference of negative electrode, change the power of electron beam so that raster brightness dynamic
Change, so as to which dynamic changes the output brightness of cathode-ray tube display screen.
For conventional projector, brightness light source generating means 3 is bulb.Pass through the first power supply signal drive control bulb
Luminosity dynamic changes, so that the display brightness of projection screen also dynamically changes.
For LED projector, brightness light source generating means 3 is electroluminescent semi-conducting material.Believed by the first power supply
Number electroluminescent semi-conducting material of driving, in the case of voltage constant, works as intensifying current, its luminous light intensity enhancing so that LED
The output intensity of projecting apparatus accordingly dynamically changes, so that also corresponding dynamic changes the display brightness of projection screen.
In the case where display device is the equipment that TV etc. is used for video frequency output, letter can also be integrated with display device
Number amplifying circuit.
In the structural representation of display device as shown in Figure 3, signal amplification circuit 5 enters to the signal to be shown of input
After row enhanced processing, output broadcasting is carried out by display screen 4.
Dynamic Signal occurs module 1 and exports brightness control signal；Intednsity circuit 2 loads Dynamic Signal and module 1 occurs
Output brightness control signal, and according to brightness control signal export the first power supply signal；Brightness light source generating means 3 is
The lower dynamic of one power supply signal driving changes display output brightness, so that by display screen 4 with the brightness of dynamic change to be shown
Signal carries out display broadcasting.
Each device, module, the function of unit and the course of work have been carried out being described in detail in above-described embodiment, no longer superfluous herein
State.
The present embodiment provides display device, and the dynamic for being capable of automatic control display device brightness of display screen changes so that sees
The ocular physiology structure for the person of seeing also carries out respective change therewith, and so as to effectively solve, user plane is long-term to display screen easily to be regarded with eye
Feel the problem of tired；By the dynamic change rate for rationally controlling display brightness so that beholder can not subjective perception brightness change
Change, while the normal use of beholder is not influenceed, protect the Vision Health of beholder.
Professional should further appreciate that, each example described with reference to the embodiments described herein
Unit and algorithm steps, it can be realized with electronic hardware, computer software or the combination of the two, it is hard in order to clearly demonstrate
The interchangeability of part and software, the composition and step of each example are generally described according to function in the above description.
These functions are performed with hardware or software mode actually, application-specific and design constraint depending on technical scheme.
Professional and technical personnel can realize described function using distinct methods to each specific application, but this realization
It is not considered that the scope beyond the embodiment of the present invention.
The method that is described with reference to the embodiments described herein can use hardware, computing device the step of algorithm
Software module, or the two combination are implemented.Software module can be placed in random access memory (RAM), internal memory, read-only storage
(ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field
In any other form of storage medium well known to interior.
Above-described embodiment, the purpose of the present invention, technical scheme and beneficial effect are carried out further
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., all should include
Within protection scope of the present invention.
Claims (9)
1. a kind of dynamic brightness control method for display device, it is characterised in that methods described includes：
Module output brightness control signal occurs for Dynamic Signal；The brightness control signal has the signal value that dynamic changes；
Intednsity circuit loads the brightness control signal, and exports the first power supply signal according to the brightness control signal；
First power supply signal has the electric parameter that dynamic changes；
The display device dynamically changes display output brightness under first power supply signal driving, so as to the display device
Display screen shown with the brightness of dynamic change.
2. dynamic brightness control method according to claim 1, it is characterised in that methods described also includes：According to described
The dynamic change of brightness of display screen so that beholder's eye structure dynamically changes with the dynamic change of the brightness of the display screen
Become.
3. dynamic brightness control method according to claim 1, it is characterised in that the dynamic change is specially：
Within any 0.1 second period, the rate of change of the brightness of the display screen is not more than 0.02.
4. dynamic brightness control method according to claim 1, it is characterised in that the brightness control signal includes:Mould
Intend voltage signal, analog current signal or data signal.
5. dynamic brightness control method according to claim 1, it is characterised in that module bag occurs for the Dynamic Signal
Include：Hardware circuit module and/or software program module.
6. dynamic brightness control method according to claim 1, it is characterised in that the electric parameter includes：Electric current and/
Or voltage.
7. dynamic brightness control method according to claim 1, it is characterised in that the electric parameter includes：Potential difference.
8. dynamic brightness control method according to claim 1, it is characterised in that the display device includes:
Any of equipment with backlit display screen, the equipment with CRT display screens or projector equipment.
9. dynamic brightness control method according to claim 1, it is characterised in that module output occurs for the Dynamic Signal
Brightness control signal is specially：
Module occurs for the Dynamic Signal according to user's triggering command, exports the brightness control signal；Or
The Dynamic Signal occurs module and obtains the brilliance control patterns information of preset storage in memory, exports the brightness
Control signal.
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| CN201610614855.2A CN107665695A (en) | 2016-07-28 | 2016-07-28 | dynamic brightness control method for display device |
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| CN201610614855.2A CN107665695A (en) | 2016-07-28 | 2016-07-28 | dynamic brightness control method for display device |
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ID=61115639
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112996203A (en) * | 2021-03-10 | 2021-06-18 | 重庆第二师范学院 | Intelligent illumination control system and control method |
| TWI840160B (en) * | 2023-03-13 | 2024-04-21 | 大陸商北京歐錸德微電子技術有限公司 | Driving voltage supply circuit and method, self-luminous display device and information processing device |
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