CN110428794A - Method, device and system for adjusting blue light of screen - Google Patents
Method, device and system for adjusting blue light of screen Download PDFInfo
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- CN110428794A CN110428794A CN201910722578.0A CN201910722578A CN110428794A CN 110428794 A CN110428794 A CN 110428794A CN 201910722578 A CN201910722578 A CN 201910722578A CN 110428794 A CN110428794 A CN 110428794A
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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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- 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
- G09G2320/0633—Adjustment of display parameters for control of overall brightness by amplitude modulation of the brightness of the illumination source
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Abstract
The invention discloses a method, a device and a system for adjusting blue light of a screen, wherein the method for adjusting the blue light of the screen comprises the following steps: acquiring the working state of a screen, and judging whether the screen is in a display state or not; when the screen is judged to be in the display state, acquiring the current time; judging whether the current time is within a preset daytime time period; when the current time is judged not to be in the preset daytime time period, adjusting the input value of blue light in the screen, and filtering the blue light output by the screen; when the current time is judged to be within a preset daytime time period, detecting the light intensity of the current environment; judging whether the light intensity of the current environment is smaller than a preset environment light threshold value or not; and when the light intensity of the current environment is judged to be smaller than the preset environment light threshold value, adjusting the input value of the blue light in the screen, and filtering the blue light output by the screen. The invention can ensure powerful filtering degree under the condition of insufficient natural light and reduce the high-energy blue light hazard of the screen as much as possible.
Description
Technical field
The present invention relates to screen display technology field more particularly to a kind of method, apparatus and system for adjusting screen blue light.
Background technique
Blue light is that wavelength is between 380nm-480nm the light with relatively high energy.Blue light wave is short, and energy is high,
Crystal can be directed through to go directly on eye ground, cause retina to generate free radicals, free radical will lead to retinal pigment
Epithelial cell decline then allows photosensitive cell to lack nutrient so as to cause vision loss, generates maculopathy, it is crystalline to squeeze contraction
Body be easy to cause myopia or other different degrees of eye illnesses.In addition, blue light influences the sleep quality of people, rhythm disorder is induced.
Universal with electronic product, the case where children use electronic product at present, is also more and more common, and most
All there is blue light in electronic product screen, eyes of the high energy blue light in LED light that each electronic product screen is distributed to children
There is very big injury.
The electronic products such as study plate mainly use a kind of high molecular blue light membrane material in terms of filtering blue light at present
Material can absorb blue light energy and be converted into other energy to reach filter effect, but this method absorbs the ability of blue light after all
It is limited, and adjustment cannot be carried out according to the actual situation.And sunlight and LED light are not the same luminescence systems, it is different
The harm of light environment blue light is simultaneously different, such as in the case where daytime, sunlight was sufficient, due to the supplement of sunlight, LED
Blue light harm be not obvious, but arrived half-light environment (sunlight not enough sufficient in the case where) or night (no sunlight),
The high energy blue light harm of LED is just especially prominent, and is not improved for such situation in current product.
Summary of the invention
The present invention provides a kind of method, apparatus and system for adjusting screen blue light, to solve in the prior art can not root
According to actual conditions, the technical issues of the high energy blue light that intelligent automatic fitration screen distributes.Specifically, technical solution of the present invention is such as
Under:
In a first aspect, the invention discloses a kind of methods for adjusting screen blue light, comprising:
The working condition for obtaining the screen, judges whether the screen is in display state；
When determining that the screen is in display state, current time is obtained；
Judge whether the current time is in preset day time period；
When determining that the current time is not at preset day time period, the input of blue light in the screen is adjusted
Value filters the blue light of the screen output；
When determining that the current time is in preset day time period, the light intensity of current environment is detected；
Judge whether the light intensity of the current environment is less than preset ambient light threshold；
When the light intensity for determining the current environment is less than preset ambient light threshold, the defeated of blue light in the screen is adjusted
Enter value, filters the blue light of the screen output.
Preferably, the method for adjusting screen blue light further include: one is arranged on the screen has blue light regulatory function
Protective film.
Preferably, in adjusting the screen blue light input value, before or after the blue light for filtering the screen output,
Further include:
Detect the blue light strength in the LED light that the screen distributes；
Judge whether the blue light strength is greater than preset blue light strength threshold value；
When determining that the blue light strength is greater than preset blue light strength threshold value, then adjust the input of blue light in the screen
Value.
Preferably, the input value of blue light is also wrapped before filtering the blue light that the screen exports in adjusting the screen
It includes:
Shoot the eye image of the user immediately ahead of the screen；
The eye image and the reference eye image of the user prestored for analyzing the user, judge the user
Pupil variation whether exceed preset amplitude changing value；
When determining the pupil variation of the user beyond preset amplitude changing value, the defeated of blue light in the screen is adjusted
Enter value.
Preferably, the input value for adjusting blue light in the screen, specifically includes:
Adjust the brightness of the screen；And/or
Adjust the colour temperature of the screen.
Second aspect, the invention also discloses a kind of devices for adjusting screen blue light, comprising:
Screen state obtains module and judges whether the screen is in display for obtaining the working condition of the screen
State；
Time-obtaining module, for obtaining current time when determining that the screen is in display state；
Time judgment module, for judging whether the current time is in preset day time period；
Blue light adjustment module, for when determining that the current time is not at preset day time period, described in adjustment
The input value of blue light in screen filters the blue light of the screen output.
Light intensity detection module, for when determining that the current time is in preset day time period, detection to be current
The light intensity of environment；
Light intensity comparison module, for judging whether the light intensity of the current environment is less than preset ambient light threshold；
The blue light adjustment module is also used to be less than preset ambient light threshold when the light intensity for determining the current environment
When, the input value of blue light in the screen is adjusted, the blue light of the screen output is filtered.
Preferably, the blue light self-checking device further include:
Blue light detection module, for detecting the blue light strength in the LED light that the screen distributes；
Blue light judgment module, for judging whether the blue light strength is greater than preset blue light strength threshold value；
The blue light adjustment module is also used to adjust when determining that the blue light strength is greater than preset blue light strength threshold value
The input value of blue light in the whole screen filters the blue light of the screen output.
Preferably, the blue light self-checking device further include:
Shooting module, for shooting the eye image of the user immediately ahead of the screen；
Image analysis module, for analyzing the eye image of the user and the reference eyes of the user prestored
Whether image judges the pupil variation of the user beyond preset amplitude changing value；
The blue light adjustment module is also used to exceed preset amplitude changing value when the pupil variation for determining the user
When, adjust the input value of blue light in the screen.
Preferably, the blue light adjustment module includes:
Brightness regulation submodule, for adjusting the brightness of the screen；And/or
Color temperature adjustment submodule, for adjusting the colour temperature of the screen.
The third aspect, the invention also discloses a kind of systems for adjusting screen blue light, including adjusting of the present invention screen
The device and a protective film for being covered in front of screen of curtain blue light, the protective film have blue light regulatory function.
The present invention is included at least with the next item down technical effect:
(1) present invention is in the case where screen is in display state, when judging whether current time is in preset daytime
Between section, when being not at preset day time period start automatic fitration function, adjust screen in blue light input value, filter screen
The blue light of curtain output；Even if current time is in preset day time period, the light intensity of current environment, In also can be further detected
The input value of blue light in (reduction) screen equally can be also adjusted in the insufficient situation of light intensity, and then filters the blue light of screen output.
In this way, according to the actual situation, selecting automatic fitration mode, intelligence degree at the night of dim light and the daytime of insufficient light
Height, by reducing the input value of blue light in screen, so that high energy blue light hurts human eye bring in the case of reducing insufficient light
Evil.
(2) present invention is additionally provided with a protective film with blue light regulatory function on the screen, preliminary by the protective film
A part of blue light is filtered, the blue light input quantity for further adjusting screen is then determined the need for further according to actual conditions.In this way,
On the one hand it can guarantee suitable degree of filtration and clearly visual enjoyment in the case where available light abundance；Another party
Face can guarantee strong degree of filtration in the case where available light is not sufficient enough, reduce the high energy blue light of LED as far as possible
Harm.
(3) present invention, can be first when detecting that current environment light intensity is inadequate, or being currently at preset night hours section
The blue light strength in the LED light that the screen is distributed by the protective film is detected, is only detecting current screen through protecting
When blue light strength is also greater than preset blue light strength value in the LED light that cuticula distributes, screen blue light input quantity can be just adjusted again,
Filter blue light, to reduce injury of the high energy blue light to human eye.
(4) due to individual differences, everyone is different to the susceptibility of blue light, and the present invention can also be according to eyes of user pupil
Image is compared with the reference pupil image of the user, when judging user's pupil variation beyond preset range value,
Illustrate that the user is more sensitive to blue light at this time, so that the input value to screen blue light be needed to be adjusted, and then from source
On reduce screen output blue light.
(5) input value that screen blue light is adjusted in the present invention, including adjusting the brightness of screen or adjusting the color of screen
Temperature.Specifically, automatic adjustment screen color temp, to give the comfortable visual experience of user, appropriate filter blue light alleviates visual fatigue.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly introduced, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill in field, without any creative labor, it can also be obtained according to these attached drawings
His attached drawing.
Fig. 1 is the flow chart of the one embodiment for the method that the present invention adjusts screen blue light；
Fig. 2 is the flow chart of another embodiment for the method that the present invention adjusts screen blue light；
Fig. 3 is the flow chart of another embodiment for the method that the present invention adjusts screen blue light；
Fig. 4 is the flow chart of another embodiment for the method that the present invention adjusts screen blue light；
Fig. 5 is the block diagram of the one embodiment for the device that the present invention adjusts screen blue light；
Fig. 6 is the block diagram of another embodiment for the device that the present invention adjusts screen blue light；
Fig. 7 is the block diagram of another embodiment for the device that the present invention adjusts screen blue light；
Fig. 8 is the block diagram of another embodiment for the device that the present invention adjusts screen blue light.
Appended drawing reference:
10-- screen state obtains module；20-- time-obtaining module；30-- time judgment module；40-- blue light adjusts mould
Block；50-- light intensity detection module；60-- light intensity comparison module；70-- blue light detection module；80-- blue light judgment module；90-- is clapped
Take the photograph module；100-- image analysis module；41-- brightness regulation submodule；42-- color temperature adjustment submodule.
Specific embodiment
In being described below, for illustration and not for limitation, the tool of such as particular system structure, technology etc is proposed
Body details, so as to provide a thorough understanding of the present application embodiment.However, it will be clear to one skilled in the art that there is no these specific
The application also may be implemented in the other embodiments of details.In other cases, it omits to well-known system, device, electricity
The detailed description of road and method, so as not to obscure the description of the present application with unnecessary details.
It should be appreciated that ought use in this specification and in the appended claims, term " includes " indicates the description
Feature, entirety, step, operation, the presence of element and/or component, but one or more other features, entirety, step are not precluded
Suddenly, the presence or addition of operation, element, component and/or set.
To make simplified form, part related to the present invention is only schematically shown in each figure, they are not represented
Its practical structures as product.In addition, there is identical structure or function in some figures so that simplified form is easy to understand
Component only symbolically depicts one of those, or has only marked one of those.Herein, "one" is not only indicated
" only this ", can also indicate the situation of " more than one ".
It will be further appreciated that the term "and/or" used in present specification and the appended claims is
Refer to any combination and all possible combinations of one or more of associated item listed, and including these combinations.
In the specific implementation, terminal device described in the embodiment of the present application is including but not limited to such as with the sensitive table of touch
Mobile phone, laptop computer, private tutor's machine or the tablet computer in face (for example, touch-screen display and/or touch tablet) it
Other portable devices of class.It is to be further understood that in certain embodiments, the terminal device is not that portable communications are set
It is standby, but the desktop computer with touch sensitive surface (such as: touch-screen display and/or touch tablet).
In following discussion, the terminal device including display and touch sensitive surface is described.However, should manage
Solution, terminal device may include that other one or more physical Users of such as physical keyboard, mouse and/or control-rod connect
Jaws equipment.
Terminal device supports various application programs, such as one of the following or multiple: drawing application program, demonstration application
Program, network creation application program, word-processing application, disk imprinting application program, spreadsheet applications, game are answered
With program, telephony application, videoconference application, email application, instant messaging applications, forging
Refining supports application program, photo management application program, digital camera application program, digital camera applications program, web browsing to answer
With program, digital music player application and/or video frequency player application program.
At least one of such as touch sensitive surface can be used in the various application programs that can be executed on the terminal device
Public physical user-interface device.It can be adjusted among applications and/or in corresponding application programs and/or change touch is quick
Feel the corresponding information shown in the one or more functions and terminal on surface.In this way, terminal public physical structure (for example,
Touch sensitive surface) it can support the various application programs with user interface intuitive and transparent for a user.
In addition, term " first ", " second " etc. are only used for distinguishing description, and should not be understood as in the description of the present application
Indication or suggestion relative importance.
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, Detailed description of the invention will be compareed below
A specific embodiment of the invention.It should be evident that drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing, and obtain other embodiments.
The invention discloses a kind of methods for adjusting screen blue light, comprising:
S101 obtains the working condition of the screen, judges whether the screen is in display state；
S102 obtains current time when determining that the screen is in display state；
S103, judges whether the current time is in preset day time period；If so, entering step S104；It is no
Then, S106 is entered step；
S104 detects the light intensity of current environment；
S105, judges whether the light intensity of the current environment is less than preset ambient light threshold；Work as front ring when judgement is described
When the light intensity in border is less than preset ambient light threshold, S106 is entered step；
S106 adjusts the input value of blue light in the screen, filters the blue light of the screen output.
Specifically, first obtaining the working condition of sub-screen in the present embodiment, see whether screen is currently in display state,
Because only that screen can just give out the LED light containing blue light in the state of display, it is not at this time only to judge to set therefore
It is standby currently in use state because screen is not necessarily in display state when equipment be in use/working condition, if shielded
Curtain is not at display state, then with regard to without carrying out blue light filter operation to the screen.Therefore it needs further, to judge to shield
Curtain is currently at display state.In the case where screen is in display state, then current time is obtained, and belong to current time
Which does a judgement period, since the natural light of day and night environment is significantly different, setting that can be rough
Then one day time period and night hours section judge current time is which period be in, for day time again
Section, if natural light is sufficient, it would be possible that blue light ratio can be reduced, to reduce harm of the blue light to human eye.And for being in
Night hours section, or still current environment light intensity is lower than preset ambient light threshold (natural light even at day time period
It is insufficient) when, it just needs to start automatic blue light filtered model, specifically, needing to adjust the blue light input value of screen, passes through reduction
The accounting of the blue light of entr screen, that is, reduce input rgb light spectrum in B (blue light) component, to be controlled from source
The output of screen blue light processed is played the role of filtering screen blue light.
The present embodiment judges whether current time is in preset day time in the case where screen is in display state
Section starts automatic fitration function when being not at preset day time period, adjusts the input value of blue light in screen, filters screen
The blue light of output；Even if current time is in preset day time period, the light intensity of current environment also can be further detected, in light
The input value of blue light in (reduction) screen equally can be also adjusted in strong insufficient situation, and then filters the blue light of screen output.Such as
This selects automatic fitration mode, intelligence degree at the night of dim light and the daytime of insufficient light according to the actual situation
Height, by reducing the input value of blue light in screen, so that high energy blue light hurts human eye bring in the case of reducing insufficient light
Evil.
Preferably, the range of preset day time period and night hours section can be artificial shift to an earlier date in above-described embodiment
It is arranged, is also possible to obtain automatically.For example, we can with the good day time period of preset in advance and night hours section, such as:
Setting 5:00--- in morning 7:30 in afternoon is day time period, remaining time is night hours section.Preferably, not due to season
Together, daybreak or the time point of darkness can also have bigger difference, and hence it is also possible to be set accordingly according to the variation in season
It sets, that is to say, that different seasons, the day time period and night hours section of setting also can be different.
It is automatic obtain if, then the longitude and latitude that the equipment where needing first to obtain screen is presently in, we can be taking human as
Longitude and latitude situation is inputted, then can also go to determine daily day further according to longitude and latitude by the longitude and latitude where GPS positioning
Out, then sunset time further determines that daily day time period and night hours section.Due to daily sunrise and at sunset
Between all can be variant, thus this set method is then more accurate, specifically, the above-mentioned acquisition screen working condition it
Before further comprise the steps of:
Obtain the longitude and latitude that the screen is presently in；
Sunrise, sunset time are obtained according to the longitude and latitude that the screen is presently in；
Set the period after sunrise, before sunset to the day time period on the same day；
Set the period after the sunset, before sunrise to the night hours section on the same day.
Another embodiment of the method for the present invention, on the basis of the above embodiments, one is arranged on the screen has blue light tune
Save the protective film of function.Specifically, there is the protective film of blue light regulatory function to include at least one layer of anti-blue light film layer or contain for this
One anti-blue light coating.
The present invention is that have the protection of blue light regulatory function based on the electronic products with screen such as study plate are similar to
Film, we are referred to as blue Light Film, and blue Light Film is attached on the screen of electronic product, to be normal filter blue light with blue Light Film
Mode increases the intelligent filtering mode of automatic fitration blue light (using the tune in above-described embodiment on the basis of original blue Light Film
The method for saving screen blue light), which can detect environment light by optical sensor, according to the situation of environment light
Software filter type is opened, on the one hand can guarantee suitable degree of filtration and clearly in the case where available light abundance
On the other hand visual enjoyment can guarantee strong degree of filtration in the case where available light is not sufficient enough, drop as far as possible
The high energy blue light harm of low LED.
Another embodiment of the method for the present invention, as shown in Figure 2, comprising:
S201 obtains the working condition of the screen, judges whether the screen is in display state；
S202 obtains current time when determining that the screen is in display state；
S203, judges whether the current time is in preset day time period；If so, entering step S204；It is no
Then, S206 is entered step；
S204 detects the light intensity of current environment；
S205, judges whether the light intensity of the current environment is less than preset ambient light threshold；Work as front ring when judgement is described
When the light intensity in border is less than preset ambient light threshold, S206 is entered step；
S206 detects the blue light strength in the LED light that the screen distributes；
S207, judges whether the blue light strength is greater than preset blue light strength threshold value；
S208 adjusts blue light in the screen when determining that the blue light strength is greater than preset blue light strength threshold value
Input value filters the blue light of the screen output.
The present embodiment based on any of the above embodiments, can also be to current before the blue light input value of adjustment screen
Blue light strength is detected, and in the case where current blue light strength is greater than preset blue light strength threshold value, then can just go to reduce to shield
The input value of blue light, filters the blue light of screen in curtain.
Another embodiment of the method for the present invention, in adjustment screen blue light input value and then the blue light of detection screen output
Intensity, if the blue light strength detected is greater than preset blue light strength threshold value, return continues to adjust screen blue light input value, directly
It is less than or equal to preset blue light strength threshold value to the blue light strength detected.Specifically, the method for the present embodiment such as Fig. 3 institute
Show, comprising:
S301 obtains the working condition of the screen, judges whether the screen is in display state；
S302 obtains current time when determining that the screen is in display state；
S303, judges whether the current time is in preset day time period；If so, entering step S304；It is no
Then, S306 is entered step；
S304 detects the light intensity of current environment；
S305, judges whether the light intensity of the current environment is less than preset ambient light threshold；Work as front ring when judgement is described
When the light intensity in border is less than preset ambient light threshold, S306 is entered step；
S306 adjusts the input value of blue light in the screen, filters the blue light of the screen output；
S307 detects the blue light strength in the LED light that the screen distributes；
S308, judges whether the blue light strength is greater than preset blue light strength threshold value；When the judgement blue light strength is big
When preset blue light strength threshold value, return step S306 continues to adjust blue light input value in screen, until detecting that screen is saturating
The blue light strength crossed in the LED light that the protective film distributes is less than preset blue light strength threshold value.
The present embodiment is using intelligent filtering mode filtering blue light --- the input value of blue light in-adjustment screen, in filtering institute
The blue light strength in LED light that the blue light and then detection screen for stating screen output distribute, if it is determined that coming out the indigo plant detected
Luminous intensity is greater than preset blue light strength threshold value, then the input value for adjusting blue light in screen again will be returned, reduces input
Ratio shared by the blue light of screen, up to detecting that the blue light strength in the LED light that screen distributes is less than preset blue light strength
Threshold value.
Another embodiment of the method for the present invention, as shown in Figure 4, comprising:
S401 obtains the working condition of the screen, judges whether the screen is in display state；
S402 obtains current time when determining that the screen is in display state；
S403, judges whether the current time is in preset day time period；If so, entering step S404；It is no
Then, S406 is entered step；
S404 detects the light intensity of current environment；
S405, judges whether the light intensity of the current environment is less than preset ambient light threshold；Work as front ring when judgement is described
When the light intensity in border is less than preset ambient light threshold, S406 is entered step；
S406 shoots the eye image of the user immediately ahead of the screen；
S407 analyzes the eye image and the reference eye image of the user prestored of the user, judges institute
The pupil variation of user is stated whether beyond preset amplitude changing value；
S408 is adjusted blue in the screen when determining the pupil variation of the user beyond preset amplitude changing value
The input value of light.
The pupil of human eye can be more sensitive to received blue light, specifically, increasing the blue light levels for being transferred to glasses, pupil
To shrink, when pupil contraction, the iris image of the glasses of shooting is more likely to better quality because iris region it is bigger and
The more multi-biological characteristic of iris is obvious.For given shooting resolution ratio, clapped when iris expands with pupil contraction
The iris image taken the photograph will have the image than shooting at iris contraction (and pupil expansion) to have higher resolution ratio, because
Widened iris provides bigger iris region for shooting.Since pupil of human is for the sensibility of blue light, it can basis
The glasses image of the user of shooting is analyzed with preset with reference to glasses image, sees the pupil of the user compared to normal condition
Under shunk how many, shrinkage amplitude is more than certain threshold value, then be considered as blue light amount and exceed and arrived the blue light safe range of the user,
It just needs further to filter screen blue light using certain filtering measure at this time.Certainly, which can also pass through iris
Resolution ratio embodies.
Preferably, adjusting the input value of blue light in the screen in any of the above-described embodiment, specifically including:
Adjust the brightness of the screen；And/or adjust the colour temperature of the screen.
Color temperature is indicated with absolute temperature K, is to heat a standard blackbody (such as platinum), temperature is increased to a certain degree
Shi Yanse starts to be gradually changed by red, orange, yellow, green, blue, indigo (royal purple), purple, utilized the characteristic of this photochromic variation, light source
Photochromic photochromic identical with black matrix when, the temperature of black matrix at that time is referred to as the color temperature of the light source by we.Color temperature exists
It is photochromic partially yellow when 3000K or so.Color temperature is photochromic partially blue in 5000K or more.Colour temperature is exactly to examine red-blue light in light
Ratio one ruler, the more then colour temperatures of blue light are high, and the more then colour temperatures of feux rouges are low.
Briefly, colour temperature is the most general index of light source light spectrum quality." warm light " colour temperature is lower, and the color of " cold light "
Temperature is relatively high.After colour temperature improves, the ratio of indigo plant radiation increases, and blue light increases therewith.Meanwhile brightness also influences the ratio of blue light
Example, brightness is higher, and blue ray radiation is stronger, and brightness is low, then the blue light exported is relatively lower.Therefore, by adjust colour temperature or
Brightness can control the blue light input quantity of screen, for example, turn down colour temperature or reduce brightness can reduce blue light input quantity,
To filter screen blue light.
Based on the same technical idea, the invention also discloses a kind of device for adjusting screen blue light, which be can be used
The method of the adjusting screen blue light of above-described embodiment filters screen blue light.Specifically, the adjusting screen blue light of the present embodiment
The embodiment of device is as shown in Figure 5, comprising:
Screen state obtains module 10 and judges whether the screen is in aobvious for obtaining the working condition of the screen
Show state；
Time-obtaining module 20, for obtaining current time when determining that the screen is in display state；
Time judgment module 30, for judging whether the current time is in preset day time period；
Blue light adjustment module 40, for adjusting institute when determining that the current time is not at preset day time period
The input value for stating blue light in screen filters the blue light of the screen output.
Light intensity detection module 50, for when determining that the current time is in preset day time period, detection to be worked as
The light intensity of preceding environment；
Light intensity comparison module 60, for judging whether the light intensity of the current environment is less than preset ambient light threshold；
The blue light adjustment module 40 is also used to be less than preset ambient light threshold when the light intensity for determining the current environment
When, the input value of blue light in the screen is adjusted, the blue light of the screen output is filtered.
In the present embodiment, screen state obtains the screen work state that module 10 obtains equipment, if got at screen
In the case where display state, time-obtaining module 20 goes to obtain current time again, and further judges whether current time is located
In preset day time period.Specifically, can with the good day time period of preset in advance and night hours section, such as: setting morning
5:00--- 7:30 in afternoon is day time period, remaining time is night hours section.Preferably, due to the difference in season, daybreak or
The time point of darkness can also have bigger difference, and hence it is also possible to be arranged accordingly according to the variation in season, that is,
Say different seasons, the day time period and night hours section of setting also can be different.
In addition, more intelligent, longitude and latitude locating for the equipment where screen can also be first obtained, then according to the longitude and latitude
Degree further obtains the longitude and latitude daily sunrise time and sunset time, finally according to the sunrise time and sunset time into one
Step sets daily day time period and night hours section.
When time judgment module 30 judges that current time is not at preset day time period, that is to say, that current time
When in preset night hours section, blue light adjustment module 40 starts automatic fitration function, adjusts the input value of blue light in screen,
Filter the blue light of screen output；Even if current time is in preset day time period, light intensity detection module 50 also can be further
The light intensity of current environment is detected, and whether preset environment light is less than by the light intensity that light intensity comparison module 60 compares current environment
Threshold value, in the insufficient situation of light intensity, blue light adjustment module 40 equally can also adjust the input value of blue light in (reduction) screen, into
And filter the blue light of screen output.In this way, according to the actual situation, on the night of dim light and the daytime of insufficient light, passing through
The input value of blue light in screen is reduced, so that high energy blue light injures human eye bring in the case of reducing insufficient light.
Another embodiment of apparatus of the present invention, on the basis of above-mentioned apparatus embodiment, as shown in fig. 6, the blue light is certainly
Dynamic regulating device further include:
Blue light detection module 70, for detecting the blue light strength in the LED light that the screen distributes；Specifically, blue light is examined
Surveying module can realize that the present invention is without limitation using existing various blue light detection techniques.
Blue light judgment module 80, for judging whether the blue light strength is greater than preset blue light strength threshold value；
The blue light adjustment module 40 is also used to when determining that the blue light strength is greater than preset blue light strength threshold value,
The input value for adjusting blue light in the screen filters the blue light of the screen output.
The present embodiment based on any of the above embodiments, when to compare current environment light intensity small for light intensity comparison module 60
The blue light strength in the LED light that distributes of screen is detected when preset ambient light threshold, then through blue light detection module 70, then
In the case that blue light judgment module 80 judges that current blue light strength is greater than preset blue light strength threshold value, blue light adjustment module 40
The input value that blue light in reduction screen can just be removed again, filters the blue light of screen.
Certainly, another embodiment of the present apparatus is also possible on the basis of above-mentioned first Installation practice, blue light tune
The input value for saving blue light in module adjustment screen, filter screen output blue light and then by blue light detection module come
The blue light strength in LED light that detection screen distributes, if blue light judgment module judges that the blue light strength detected is greater than
Preset blue light strength threshold value reduces input then blue light adjustment module will be allowed to adjust the input value of blue light in screen again
Ratio shared by the blue light of screen, up to detecting that the blue light strength in the LED light that screen distributes is less than preset blue light strength
Threshold value.
Another embodiment of apparatus of the present invention, on the basis of above-mentioned first Installation practice, as shown in fig. 7, described
Blue light self-checking device further include:
Shooting module 90, for shooting the eye image of the user immediately ahead of the screen；
Image analysis module 100, for analyzing the eye image of the user and the reference of the user prestored
Whether eye image judges the pupil variation of the user beyond preset amplitude changing value；
The blue light adjustment module 40 is also used to exceed preset amplitude changing value when the pupil variation for determining the user
When, adjust the input value of blue light in the screen.
The pupil of human eye can be more sensitive to received blue light, specifically, increasing the blue light levels for being transferred to glasses, pupil
To shrink, when pupil contraction, the iris image of the glasses of shooting is more likely to better quality because iris region it is bigger and
The more multi-biological characteristic of iris is obvious.For given shooting resolution ratio, clapped when iris expands with pupil contraction
The iris image taken the photograph will have the image than shooting at iris contraction (and pupil expansion) to have higher resolution ratio, because
Widened iris provides bigger iris region for shooting.Since pupil of human is for the sensibility of blue light, it can basis
The glasses image of the user of shooting is analyzed with preset with reference to glasses image, sees the pupil of the user compared to normal condition
Under shunk how many, shrinkage amplitude is more than certain threshold value, then be considered as blue light amount and exceed and arrived the blue light safe range of the user,
It just needs further to filter screen blue light using certain filtering measure at this time.Certainly, which can also pass through iris
Resolution ratio embodies.
Another embodiment of apparatus of the present invention, on the basis of any of the above-described Installation practice, as shown in figure 8, the indigo plant
Light adjustment module 40 includes:
Brightness regulation submodule 41, for adjusting the brightness of the screen；And/or
Color temperature adjustment submodule 42, for adjusting the colour temperature of the screen.
Briefly, colour temperature is the most general index of light source light spectrum quality." warm light " colour temperature is lower, and the color of " cold light "
Temperature is relatively high.After colour temperature improves, the ratio of indigo plant radiation increases, and blue light increases therewith.Meanwhile brightness also influences the ratio of blue light
Example, brightness is higher, and blue ray radiation is stronger, and brightness is low, then the blue light exported is relatively lower.Therefore, by adjust colour temperature or
Brightness can control the blue light input quantity of screen, for example, turn down colour temperature or reduce brightness can reduce blue light input quantity,
To filter screen blue light.
Finally, the invention also discloses a kind of system for adjusting screen blue light, including adjusting screen of the present invention is blue
The device of light and a protective film for being covered in front of screen, the protective film have blue light regulatory function.
Protective film of the setting one with blue light regulatory function on the screen.Specifically, this has the guarantor of blue light regulatory function
Cuticula (anti-blue light film) includes at least one layer of anti-blue light film layer or contains an anti-blue light coating.It is covered with this anti-indigo plant on the screen
After the protective film of light, it is equivalent to physics anti-blue light, a degree of filtering has been carried out for the blue light that screen gives out, for certainly
Right light more sufficient daytime, then only need this anti-blue light film can, however night or natural light are not filled
It then needs under the premise of this anti-blue light film carries out physics anti-blue light the daytime of foot, then blue using adjusting screen of the invention
The device of light further to carry out intelligent filtering to screen, specifically, the device of the adjusting screen blue light can be passed by illumination
Sensor detects environment light, is determined whether to start blue light filtration step again according to the situation of environment light, in this way, on the one hand in natural light
It can guarantee suitable degree of filtration (filtering of anti-blue light film) and clearly visual enjoyment in the case where line charge foot, on the other hand
It can guarantee strong degree of filtration (anti-blue light film+adjusting screen blue light dress in the case where available light is not sufficient enough
Set common filtering), the high energy blue light harm of LED is reduced as far as possible.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of method for adjusting screen blue light characterized by comprising
The working condition for obtaining the screen, judges whether the screen is in display state；
When determining that the screen is in display state, current time is obtained；
Judge whether the current time is in preset day time period；
When determining that the current time is not at preset day time period, the input value of blue light in the screen, mistake are adjusted
Filter the blue light of the screen output；
When determining that the current time is in preset day time period, the light intensity of current environment is detected；
Judge whether the light intensity of the current environment is less than preset ambient light threshold；
When the light intensity for determining the current environment is less than preset ambient light threshold, the input of blue light in the screen is adjusted
Value filters the blue light of the screen output.
2. a kind of method for adjusting screen blue light according to claim 1, which is characterized in that further include: it sets on the screen
Set a protective film with blue light regulatory function.
3. a kind of method for adjusting screen blue light according to claim 2, which is characterized in that blue in adjusting the screen
The input value of light, before or after the blue light for filtering screen output, further includes:
Detect the blue light strength in the LED light that the screen distributes；
Judge whether the blue light strength is greater than preset blue light strength threshold value；
When determining that the blue light strength is greater than preset blue light strength threshold value, then adjust the input value of blue light in the screen.
4. a kind of method for adjusting screen blue light according to claim 1, which is characterized in that blue in adjusting the screen
The input value of light, before the blue light for filtering screen output, further includes:
Shoot the eye image of the user immediately ahead of the screen；
The eye image and the reference eye image of the user prestored for analyzing the user, judge the pupil of the user
Whether hole variation exceeds preset amplitude changing value；
When determining the pupil variation of the user beyond preset amplitude changing value, the input of blue light in the screen is adjusted
Value.
5. a kind of method for adjusting screen blue light according to claim 1-4, which is characterized in that adjust the screen
The input value of blue light in curtain, specifically includes:
Adjust the brightness of the screen；And/or
Adjust the colour temperature of the screen.
6. a kind of device for adjusting screen blue light characterized by comprising
Screen state obtains module and judges whether the screen is in display state for obtaining the working condition of the screen；
Time-obtaining module, for obtaining current time when determining that the screen is in display state；
Time judgment module, for judging whether the current time is in preset day time period；
Blue light adjustment module, for adjusting the screen when determining that the current time is not at preset day time period
The input value of middle blue light filters the blue light of the screen output.
Light intensity detection module, for detecting current environment when determining that the current time is in preset day time period
Light intensity；
Light intensity comparison module, for judging whether the light intensity of the current environment is less than preset ambient light threshold；
The blue light adjustment module is also used to adjust when the light intensity for determining the current environment is less than preset ambient light threshold
The input value of blue light in the whole screen filters the blue light of the screen output.
7. a kind of device for adjusting screen blue light according to claim 6, which is characterized in that further include:
Blue light detection module, for detecting the blue light strength in the LED light that the screen distributes；
Blue light judgment module, for judging whether the blue light strength is greater than preset blue light strength threshold value；
The blue light adjustment module is also used to adjust institute when determining that the blue light strength is greater than preset blue light strength threshold value
The input value for stating blue light in screen filters the blue light of the screen output.
8. a kind of device for adjusting screen blue light according to claim 6, which is characterized in that further include:
Shooting module, for shooting the eye image of the user immediately ahead of the screen；
Image analysis module, for analyzing the eye image of the user and the reference eyes figure of the user prestored
Whether picture judges the pupil variation of the user beyond preset amplitude changing value；
The blue light adjustment module is also used to adjust when determining the pupil variation of the user beyond preset amplitude changing value
The input value of blue light in the whole screen.
9. according to a kind of described in any item devices for adjusting screen blue light of claim 6-8, which is characterized in that the blue light tune
Saving module includes:
Brightness regulation submodule, for adjusting the brightness of the screen；And/or
Color temperature adjustment submodule, for adjusting the colour temperature of the screen.
10. a kind of system for adjusting screen blue light, which is characterized in that including the described in any item adjusting screens of claim 6-9
The device of blue light and a protective film for being covered in front of screen, the protective film have blue light regulatory function.
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| CN201910722578.0A CN110428794A (en) | 2019-08-06 | 2019-08-06 | Method, device and system for adjusting blue light of screen |
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Application publication date: 20191108 |