CN104767888B - A kind of screen luminance adjustment method and device - Google Patents
A kind of screen luminance adjustment method and device Download PDFInfo
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- CN104767888B CN104767888B CN201510182333.5A CN201510182333A CN104767888B CN 104767888 B CN104767888 B CN 104767888B CN 201510182333 A CN201510182333 A CN 201510182333A CN 104767888 B CN104767888 B CN 104767888B
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Abstract
The present invention is suitable for field of screen display, provides a kind of screen luminance adjustment method and device, this method include：Obtain the angle information of screen direction；When the angle information of the screen direction meets preset screen angular range directed downwardly, the distance between user's face and screen are detected；When the distance between user's face and screen are less than pre-determined distance, current environment illumination intensity is detected；Adjust the brightness of screen accordingly according to current environment illumination intensity.When the present invention enables to user to be operated under improper posture, reduce damage of the screen to user's eyesight.
Description
Technical field
The invention belongs to field of screen display more particularly to a kind of screen luminance adjustment method and devices.
Background technology
With the development of mobile intelligent terminal technology, the use of mobile intelligent terminal is also more and more common.User can lead to
Mobile intelligent terminal is crossed, as internet data information is conversed and checked to mobile phone, or by mobile phone running game program, is made
With very convenient.
However, mobile intelligent terminal easy to use simultaneously as user's use habit is improper, also can regarding to user
Power brings damage, such as user to lie down when seeing the mobile phone, and is easy to cause eyes of user and damages eyesight using fatigue.
Invention content
The purpose of the present invention is to provide a kind of screen luminance adjustment methods, to solve the prior art since user uses habit
It is used improper, also damage can be brought to the eyesight of user, as when user, which lies down, to see the mobile phone, being easy to cause eyes of user using tired
The problem of damaging eyesight.
The invention is realized in this way a kind of screen luminance adjustment method, the method includes：
Obtain the angle information of screen direction；
When the angle information of the screen direction meets preset screen angular range directed downwardly, detection user's face with
The distance between screen；
When the distance between user's face and screen are less than pre-determined distance, current environment illumination intensity is detected；
Adjust the brightness of screen accordingly according to current environment illumination intensity.
Another object of the present invention is to provide a kind of screen brightness regulating device, described device includes：
Angle acquiring unit, the angle information for obtaining screen direction；
Distance detection unit, for meeting preset screen angular range directed downwardly when the angle information of the screen direction
When, detect the distance between user's face and screen；
Illumination detection unit, for when the distance between user's face and screen are less than pre-determined distance, detection to be worked as
Preceding environment illumination intensity；
Brightness adjustment unit, the brightness for adjusting screen accordingly according to current environment illumination intensity.
In the present invention, when meeting preset screen angular range directed downwardly by detecting the angle information of screen direction,
Judge that user is current for the use state that lies down, further judges that the illumination of the distance between user's face and screen and environment is strong
Degree, when the distance and the intensity of illumination be satisfied by it is preset then the brightness of screen is adjusted when requiring, to make
User when being operated under improper posture, reduce damage of the screen to user's eyesight.
Description of the drawings
Fig. 1 is the implementation flow chart for the screen luminance adjustment method that first embodiment of the invention provides；
Fig. 2 is the implementation flow chart of detection user's face and the distance between screen that first embodiment of the invention provides；
Fig. 3 is the implementation flow chart for the screen luminance adjustment method that second embodiment of the invention provides；
Fig. 4 is the structural schematic diagram for the screen brightness regulating device that third embodiment of the invention provides.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The main purpose of the embodiment of the present invention is to solve in the prior art, due to user's abnormal operation, for example to lie in
When on bed using intelligent terminals such as mobile phones, since user uses fault, eyes are easily caused in such a state
Fatigue, the problem of to damage eyes of user eyesight.
To solve the problems, such as this, the present invention proposes a kind of screen luminance adjustment method, the method includes：Obtain screen court
To angle information；When the angle information of the screen direction meets preset screen angular range directed downwardly, user is detected
The distance between face and screen；When the distance between user's face and screen are less than pre-determined distance, detect current
Environment illumination intensity；Adjust the brightness of screen accordingly according to current environment illumination intensity.
When angle information by detecting screen direction meets preset screen angular range directed downwardly, judge that user is current
For the use state that lies down, further judge the intensity of illumination of the distance between user's face and screen and environment, when it is described away from
From and the intensity of illumination be satisfied by it is preset then the brightness of screen is adjusted when requiring so that user is non-
When being operated under normal attitude, reduce damage of the screen to user's eyesight.It illustrates below in conjunction with the accompanying drawings.
Embodiment one：
Fig. 1 shows the implementation process for the screen luminance adjustment method that first embodiment of the invention provides, and details are as follows：
In step S101, the angle information of screen direction is obtained.
Can be the screen of mobile terminal specifically, screen described in the embodiment of the present invention, the mobile terminal include but
It is not limited to smart mobile phone, tablet computer etc..
The angle information of the screen direction refers to the direction of screen face.For example terminal is when horizontal positioned, screen
Direction can be then in horizontal direction or horizontal direction direction.
Certainly, the angle information of the screen direction in embodiments of the present invention, can detect screen front its with
The angle information of horizontal direction, it may not be necessary to the angle information of all directions of screen direction.
Front and the angle information of horizontal direction of the screen, screen downward when, setting in this state, screen
Angle with horizontal direction is zero, when screen it is face-up when, then the angle of screen and horizontal plane be more than 90 degree.If screen
Upward, then the angle of screen and horizontal plane is 180 degree to horizontal positioned and screen.
By it is upper analysis it is found that the angle between screen and horizontal plane be 0-180 between random angle angle value.
The angle information for obtaining screen direction, can be obtained, the direction sensing by the direction sensor of terminal
Device includes but not limited to gyroscope.
It is of course also possible to judge screen state upward and screen state directed downwardly according to gravity sensor.
It is understood that the angle information of the screen direction meet preset screen angular range directed downwardly can be with
It is described as：Screen is oriented direction directed downwardly, and the angle between the direction of the screen and the vertical line of horizontal plane is less than
Predetermined angle angle value.
In step s 102, when the angle information of the screen direction meets preset screen angular range directed downwardly,
Detect the distance between user's face and screen.
Specifically, the angular range of the screen direction, the angle that can be arranged between screen and horizontal plane is less than 90 degree
Ranging from screen angular range directed downwardly.Can also include other setting numerical value it is understood that being not limited thereto
Angular range, such as less than 85 degree of angular range.
The distance between the detection user face and screen step may include step as shown in Figure 2：
In step s 201, the distance between object and the screen being located at by proximity sensor detection in front of screen；
Specifically, the proximity sensor includes infrared proximity transducer, capacitive proximity sensor etc..
Due in use, might have the gesture operation of user, therefore, it is necessary to distinguish user's face and screen it
Between distance and gesture or the closer scene of the distance between other objects and screen, to obtain accurate face away from
From detection.
In step S202, when the distance between the object and screen are less than predetermined value, obtained simultaneously by camera
Judge whether the object is user's face.
In this step, when the distance for detecting the object distance screen in front of screen is less than preset distance value, lead to
The image for obtaining the object being located in front of screen using camera is crossed, and the image of acquisition is analyzed, by itself and people's figure
Image information is compared, and determines whether face.
It is understood that can also be judged by the motion amplitude to the object in front of screen, if object
Motion amplitude is less than a preset range value, then may determine that in front of screen to be face.It can directly pass through close sensing
Device is judged, need not be opened camera and be obtained image, can save system resource.
In embodiments of the present invention, when the angle information of the screen direction does not meet preset screen angle model directed downwardly
When enclosing, then can directly it terminate, the illumination of the detection and environment that need not carry out user's face and the distance between screen is strong
The detection of degree.
The pre-determined distance value can be 20 centimetres, this is merely illustrative certainly, it is not limited to this, it can also wrap
Include the distance value of other settings.The distance value finding user due to eye fatigue apart from the too close situation of screen in time.
In step s 103, it when the distance between user's face and screen are less than pre-determined distance, detects current
Environment illumination intensity.
Specifically, when being less than pre-determined distance at a distance from user's face is between screen, then current environment is detected
Intensity of illumination.
The illumination intensity information can obtain illumination intensity value according to photosensitive sensor.
In step S104, the brightness of screen is adjusted accordingly according to current environment illumination intensity.
Specifically, the brightness steps that the current environment illumination intensity of the basis adjusts screen accordingly are：
Judge whether current environment illumination intensity is less than preset strength value；
If current environment illumination intensity is less than preset intensity value, the brightness of screen is reduced to predetermined value.
It is understood that this is one of which regulative mode, an intensity of illumination and screen intensity can also be set
Correspondence table either directly can to search or calculate corresponding screen according to current intensity of illumination bright for a correspondence formula
Angle value.
The corresponding table or correspondence formula, the intensity of illumination being satisfied by environment is weaker, then the brightness of screen is smaller
Correspondence.
When the embodiment of the present invention meets preset screen angular range directed downwardly by detecting the angle information of screen direction,
Judge that user is current for the use state that lies down, further judges that the illumination of the distance between user's face and screen and environment is strong
Degree, when the distance and the intensity of illumination be satisfied by it is preset then the brightness of screen is adjusted when requiring, to make
User when being operated under improper posture, reduce damage of the screen to user's eyesight.
Embodiment two：
Fig. 3 shows the implementation process for the screen luminance adjustment method that second embodiment of the invention provides, and details are as follows：
In step S301, the angle information of screen direction is obtained.
In step s 302, when the angle information of the screen direction meets preset screen angular range directed downwardly,
Detect the distance between user's face and screen.
In step S303, when the distance between user's face and screen are less than pre-determined distance, detect current
Environment illumination intensity.
In step s 304, the brightness of screen is adjusted accordingly according to current environment illumination intensity.
Step S301 to step S304 and the step S101-S104 in implementation column one are essentially identical, are not repeated herein superfluous
It states.
In step S305, when the angle to meeting the screen direction belongs to preset screen angular range directed downwardly
Continuous state carries out timing.
Specifically, when detecting that the angle of screen direction belongs to preset screen angular range directed downwardly, then start timing.
If the angle of midway screen changes, the angle change information for acquiring screen in real time is needed, and judgement is
It is no to meet preset angular range value.
If the angle of screen meets preset angular range, persistently the cumulative time, the first accumulated time value is obtained.
If the angle of screen does not meet preset angular range, continuous timing is carried out to incongruent state, is obtained
Second accumulated time value is zeroed out the first accumulated time if the second accumulated time value is more than break period predetermined value
Operation.If the second accumulated time value is less than break period predetermined value, the first accumulated time value is not reset.
In step S306, when the time value of timing reaches preset time value, sends prompting message or close screen.
That is, when the first accumulated time value reaches preset time value, for example at 20 minutes, then send prompting message or closing
Screen, to protect eyes of user eyesight.
For example, when break period preset value is 3 minutes, in user continuously in angular range directed downwardly using after 15 minutes,
If having interrupted 2 minutes, it is further continued for using 5 minutes in angular range directed downwardly, then can send prompting message or closes screen.
If user continuously in angular range directed downwardly using after 15 minutes, if interrupted 3 minutes or 3 minutes with
On, it is further continued for, when angular range directed downwardly uses 5 minutes, due to resetting the first accumulated time, to send out
It send prompting message or closes screen.
The time for closing screen can be set as 3 minutes or other durations.
The embodiment of the present invention and embodiment one the difference is that, the present invention also makes user under state lack of standardization
Judged with the time, and reminded in time after more than certain usage time, to be further reduced the damage of user's eyesight.
Embodiment three：
Fig. 4 shows the structural schematic diagram for the screen brightness regulating device that third embodiment of the invention provides, and details are as follows：
Screen brightness regulating device described in the embodiment of the present invention, including：
Angle acquiring unit 401, the angle information for obtaining screen direction；
Distance detection unit 402, for meeting preset screen angle directed downwardly when the angle information of the screen direction
When range, the distance between user's face and screen are detected；
Illumination detection unit 403, for when the distance between user's face and screen are less than pre-determined distance, detecting
Current environment illumination intensity；
Brightness adjustment unit 404, the brightness for adjusting screen accordingly according to current environment illumination intensity.
Preferably, the brightness adjustment unit includes：
Intensity of illumination judgment sub-unit, for judging whether current environment illumination intensity is less than preset strength value；
Brightness reduces subelement, if being less than preset intensity value for current environment illumination intensity, reduces screen
Brightness to predetermined value.
Preferably, the angle acquiring unit includes：
Angle information obtains subelement, for obtaining screen towards angle information according to direction sensor；
The angle information of the screen direction meets preset screen angular range directed downwardly：Screen is oriented court
Under direction, and the angle between the direction of the screen and the vertical line of horizontal plane be less than predetermined angle angle value.
Preferably, described device further includes：
Continuous timing unit, for belonging to preset screen angular range directed downwardly to the angle for meeting the screen direction
When continuous state carry out timing；
Transmission unit is reminded, for when the time value of timing reaches preset time value, sending prompting message or closing
Screen.
Preferably, the distance detection unit includes：
First detection sub-unit, for by between object and screen of the proximity sensor detection in front of the screen away from
From；
Second detection sub-unit, for when the distance between the object and screen are less than predetermined value, passing through camera
It obtains and detects whether the object is user's face.
Screen brightness regulating device described in the embodiment of the present invention and screen described in embodiment one and embodiment two are bright
It spends adjusting method to correspond to, so here is no more repetition.
In several embodiments provided by the present invention, it should be understood that disclosed device and method can pass through it
Its mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the unit, only
Only a kind of division of logic function, formula that in actual implementation, there may be another division manner, such as multiple units or component can be tied
Another system is closed or is desirably integrated into, or some features can be ignored or not executed.Another point, it is shown or discussed
Mutual coupling, direct-coupling or communication connection can be the INDIRECT COUPLING or logical by some interfaces, device or unit
Letter connection can be electrical, machinery or other forms.
The unit illustrated as separating component may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, you can be located at a place, or may be distributed over multiple
In network element.Some or all of unit therein can be selected according to the actual needs to realize the mesh of this embodiment scheme
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also
It is that each unit physically exists alone, it can also be during two or more units be integrated in one unit.Above-mentioned integrated list
The form that hardware had both may be used in member is realized, can also be realized in the form of SFU software functional unit.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can be stored in a computer read/write memory medium.Based on this understanding, technical scheme of the present invention is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or the network equipment etc.) executes the complete of each embodiment the method for the present invention
Portion or part.And storage medium above-mentioned includes：USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory),
Random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can to store program code
Medium.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (8)
1. a kind of screen luminance adjustment method, which is characterized in that the method includes：
Obtain the angle information of screen direction；When the angle information of the screen direction meets preset screen angle model directed downwardly
When enclosing, the distance between user's face and screen are detected；
When the distance between user's face and screen are less than pre-determined distance, current environment is detected according to photosensitive sensor
Intensity of illumination；
Adjust the brightness of screen accordingly according to current environment illumination intensity；
When the angle information of the screen direction does not meet preset screen angular range directed downwardly, directly terminate, without
The detection of the intensity of illumination of the detection of the distance between user's face and screen and environment；
Continuous state when angle to meeting the screen direction belongs to preset screen angular range directed downwardly carries out timing；
If the angle of the screen meets preset angular range, persistently the cumulative time, the first accumulated time value is obtained；
When the first accumulated time value reach preset time value, then send prompting message or close screen, to protect eyes of user eyesight；
If the angle of the screen does not meet preset angular range, continuous timing is carried out to incongruent state, is obtained
Second accumulated time value, if the second accumulated time value is more than break period predetermined value, to first accumulated time
It is zeroed out operation；
The detection user face includes with the distance between screen step：
The distance between object and the screen being located at by proximity sensor detection in front of screen；
When the distance between the object and screen are less than predetermined value, by detecting described in the motion amplitude judgement of the object
Whether object is face.
2. method according to claim 1, which is characterized in that the current environment illumination intensity of the basis adjusts screen accordingly
Curtain brightness steps be：
Judge whether current environment illumination intensity is less than preset strength value；
If current environment illumination intensity is less than preset intensity value, the brightness of screen is reduced to predetermined value.
3. method according to claim 1, which is characterized in that it is described obtain screen direction angle information step be：
Screen is obtained towards angle information according to direction sensor；
The angle information of the screen direction meets preset screen angular range directed downwardly：Being oriented for screen is directed downwardly
Direction, and the angle between the direction of the screen and the vertical line of horizontal plane is less than predetermined angle angle value.
4. method according to claim 1, which is characterized in that the distance between the detection user face and screen step are also
Including：
When the distance between the object and screen be less than predetermined value when, obtained by camera and judge the object whether be
User's face.
5. a kind of screen brightness regulating device, which is characterized in that described device includes：
Angle acquiring unit, the angle information for obtaining screen direction；When the angle information of the screen direction do not meet it is pre-
If screen angular range directed downwardly when, directly terminate, without the detection of the distance between user's face and screen and environment
Intensity of illumination detection；
Distance detection unit, for when the angle information of the screen direction meets preset screen angular range directed downwardly,
Detect the distance between user's face and screen；
Illumination detection unit is used for when the distance between user's face and screen are less than pre-determined distance, according to photosensitive biography
Sensor detects current environment illumination intensity；
Brightness adjustment unit, the brightness for adjusting screen accordingly according to current environment illumination intensity；
Continuous timing unit, when for belonging to preset screen angular range directed downwardly to the angle for meeting the screen direction
Continuous state carries out timing；If the angle of the screen meets preset angular range, persistently the cumulative time, first is obtained
Accumulated time value；When the first accumulated time value reach preset time value, then send prompting message or close screen, with protect user eye
Eyeball eyesight；If the angle of the screen does not meet preset angular range, continuous timing is carried out to incongruent state, is obtained
To the second accumulated time value, if the second accumulated time value is more than break period predetermined value, when to first accumulation
Between be zeroed out operation；
The distance detection unit includes：
First detection sub-unit, for being located at the distance between object and screen in front of screen by proximity sensor detection；
Second detection sub-unit, for when the distance between the object and screen are less than predetermined value, passing through the detection object
The motion amplitude of body judges whether the object is face.
6. device according to claim 5, which is characterized in that the brightness adjustment unit includes：
Intensity of illumination judgment sub-unit, for judging whether current environment illumination intensity is less than preset strength value；
Brightness reduces subelement, if being less than preset intensity value for current environment illumination intensity, reduces the bright of screen
It spends to predetermined value.
7. device according to claim 5, which is characterized in that the angle acquiring unit includes：
Angle information obtains subelement, for obtaining screen towards angle information according to direction sensor；
The angle information of the screen direction meets preset screen angular range directed downwardly：Being oriented for screen is directed downwardly
Direction, and the angle between the direction of the screen and the vertical line of horizontal plane is less than predetermined angle angle value.
8. device according to claim 5, which is characterized in that described
Second detection sub-unit is additionally operable to, when the distance between the object and screen are less than predetermined value, obtain by camera
It takes and detects whether the object is user's face.
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| CN201510182333.5A CN104767888B (en) | 2015-04-16 | 2015-04-16 | A kind of screen luminance adjustment method and device |
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| CN103065608B (en) * | 2011-10-19 | 2016-01-20 | 宏碁股份有限公司 | Electronic installation and illumination adjustment System |
| CN103793052B (en) * | 2013-11-21 | 2017-01-11 | 广州视源电子科技股份有限公司 | Eyesight protection control method for mobile terminal |
-
2015
- 2015-04-16 CN CN201510182333.5A patent/CN104767888B/en not_active Expired - Fee Related
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| CN104767888A (en) | 2015-07-08 |
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