CN104468912B - A kind of control method and its display terminal of mobile terminal screen brightness - Google Patents
A kind of control method and its display terminal of mobile terminal screen brightness Download PDFInfo
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- CN104468912B CN104468912B CN201410743225.6A CN201410743225A CN104468912B CN 104468912 B CN104468912 B CN 104468912B CN 201410743225 A CN201410743225 A CN 201410743225A CN 104468912 B CN104468912 B CN 104468912B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The present invention relates to a kind of control method and its display device of mobile terminal screen brightness, methods described includes：Environmental light brightness is detected by multiple light sensors built in mobile phone, it is preliminary to adjust mobile phone screen backlight illumination；Start the scene information in the range of the front camera seizure mobile phone screen finding of mobile phone, identify and whether there is face information in the scene information；When face information be present in the scene information, face is detected to the distance of mobile phone screen by multiple range sensors built in mobile phone, and the plane where face is determined, distance of the mobile phone screen apart from the plane is calculated by CPU, further adjusts the backlight illumination of mobile phone screen；Otherwise screen is closed automatically.Beneficial effect is：It is accurate by the detection of multiple sensor distances, the screen intensity of display terminal can be automatically adjusted, meets the needs of user, is advantageous to save the electric energy that display terminal expends, reduces the electric energy loss of display terminal, be advantageous to strengthen the product use feeling of user.
Description
Technical field
The present invention relates to communication technique field, control method more particularly, to a kind of mobile terminal screen brightness and its aobvious
Show terminal.
Background technology
With the continuous improvement of science and technology and human living standard, smart mobile phone is increasingly popularized, but intelligent mobile phone battery
Capacity develop certain bottleneck, how to save the electricity of mobile phone to greatest extent in the case of limited electricity turns into one
The individual topic that everybody pays close attention to very much.In general, the mobile phone electricity overwhelming majority are by showing plate consumption, in order to realize automatic screen
Curtain brilliance control, Chinese patent《The electricity saving method that a kind of intelligent terminal is read》, Patent No.：201210297954.4.This is special
Profit first passes through light sensor detection environmental light brightness, tentatively adjusts hand when mobile phone reads the scene such as webpage or e-book
Machine screen backlight brightness, then by range sensor detect face arrive mobile phone distance, regulation screen backlight brightness, with up to
To more careful power saving purpose.But it is that face is close that the program, which only has a range sensor to detect whether, even if
It is that face is close, is only able to detect some point of face, and face is not the structure of a plane, and very high mistake can be caused to survey,
Cause to read uncomfortable, the waste of electricity.
Therefore, the present invention proposes a kind of control method and its display terminal of mobile terminal screen brightness, with solution
The distance detection stated is inaccurate, cause to read it is uncomfortable, the problems such as the waste of electricity
The content of the invention
The present invention provides a kind of control method and its display terminal of mobile terminal screen brightness, to solve in the prior art
Distance detection it is inaccurate, cause to read it is uncomfortable, the problems such as the waste of electricity.
Technical problem solved by the invention is realized using following technical scheme：
A kind of control method of mobile terminal screen brightness, including：101st, multiple light sensors built in mobile phone are passed through
Environmental light brightness is detected, it is preliminary to adjust mobile phone screen backlight illumination；102nd, the front camera for starting mobile phone catches the mobile phone
Scene information in the range of screen finding, identify and whether there is face information in the scene information；103rd, the scene information
In when face information be present, detect face to the distance of mobile phone screen by multiple range sensors built in mobile phone, and determine
Plane where face, distance of the mobile phone screen apart from the plane is calculated by CPU, further adjust the backlight of mobile phone screen
Brightness；Otherwise screen is closed automatically.
As preferable technical scheme, the light sensor detection environmental light brightness described in step 101 includes：In mobile phone
The light sensor put detects to the environmental light brightness of surrounding；The environment bright that the light sensor will detect
Degree information is sent to CPU.
As preferable technical scheme, the preliminary regulation mobile phone screen backlight illumination described in step 101 includes：CPU pairs
Multiple brightness information are analyzed, and include tone, saturation degree and the brightness value of the analysis brightness information, and according to
The average value of the brightness information determines environmental light brightness scene；According to environmental light brightness scene matching screen backlight brightness.
Because the light sensor is multiple, it is averaged by calculating the environmental light intensity around mobile phone near multiple opening positions
Value, present handset size is increasing, and the environmental light intensity at identical environment at diverse location can be variant, so passing through
The ambient light intensity that the average value of multiple opening positions calculates is more smart closest to actual environment luminous intensity near mobile phone screen
Really.
As preferable technical scheme, the front camera of the startup mobile phone described in step 102 catches the Mobile phone screen
Curtain finding in the range of scene information while also include：One of them described light range sensor built in mobile phone is to human eye
Send infrared ray；The front camera catches the position of eyeball bright spot and pupil center；The sight of eyes is calculated by CPU
Vector.
As preferable technical scheme, be divided into according to the distance of detection mobile phone screen to face it is N number of apart from section, 0<N<
10, and N is integer, is correspondingly arranged N number of screen backlight brightness apart from section, and N number of screen backlight brightness is from bright to dark arrangement.
As preferable technical scheme, the backlight illumination of the further regulation mobile phone screen described in step 103 includes：Hand
Machine CPU transfers the range sensor by repetition within the time interval T seconds and detects face to the distance of mobile phone screen, and calculates
Go out the average distance of mobile phone screen distance face；Screen backlight brightness is matched according to average distance of the mobile phone screen apart from face.
The invention also discloses a kind of display terminal, including：Mobile phone terminal, the mobile phone terminal have front camera,
CPU and mobile phone screen；More than one light sensor, it is connected with the CPU of the mobile phone terminal, and is separately positioned on described
The diverse location of mobile phone terminal, for detecting the environmental light brightness of the mobile phone terminal；More than one range sensor, with institute
The CPU for stating mobile phone terminal is connected, and is separately positioned on the diverse location of the mobile phone terminal, is arrived for detecting the mobile phone screen
The distance of face；Screen saves electric unit, is connected with the CPU of the mobile phone terminal, is taken the photograph by starting the preposition of the mobile phone terminal
As the scene information in the range of the head seizure mobile phone screen finding, identify and whether there is face information in the scene information,
Identify whether user is currently just being look at the mobile phone terminal according to the face information, the mobile phone is controlled according to above-mentioned recognition result
The screen of terminal opens and closes；Screen intensity control unit, the mobile phone screen is calculated to the distance of face by CPU, adjusts hand
The backlight illumination of machine screen.
As preferable technical scheme, the light sensor and range sensor are respectively 3.
As preferable technical scheme, the screen saves electric unit and is arranged in the operating system of mobile phone terminal, and mobile phone is whole
The operating system at end saves the screen intensity of electric unit adjustment mobile phone terminal by the screen.
The invention has the advantages that：The present invention is accurate by multiple range sensor detecting distances, can adjust automatically
The screen intensity of display terminal is saved, meets the needs of user, is advantageous to save the electric energy that display terminal expends, reduces display terminal
Electric energy loss, reduce the daily electric cost expenditure of user, work and life to user offer convenience, and are advantageous to strengthen user's
Product use feeling, is of great practical significance.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of embodiment of the present invention or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the present invention, for those of ordinary skill in the art, is not paying the premise of creative labor
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the present invention：A kind of flow chart of the control method of mobile terminal screen brightness；
Fig. 2 is the present invention：A kind of light sensor detection environmental light brightness of the control method of mobile terminal screen brightness
Flow chart；
Fig. 3 is the present invention：A kind of preliminary regulation mobile phone screen backlight illumination of the control method of mobile terminal screen brightness
Flow chart；
Fig. 4 is the present invention：A kind of backlight of the further regulation mobile phone screen of the control method of mobile terminal screen brightness
The flow chart of brightness；
Fig. 5 is the present invention：A kind of structural representation of display terminal.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is expanded on further.
Shown in reference picture 1, a kind of control method of mobile terminal screen brightness, comprise the following steps：
101st, environmental light brightness is detected by multiple light sensors built in mobile phone, preliminary regulation mobile phone screen backlight is bright
Degree；
102nd, the front camera for starting mobile phone catches scene information in the range of the mobile phone screen finding, described in identification
It whether there is face information in scene information；
When the 103rd, face information be present in the scene information, face is detected by multiple range sensors built in mobile phone
To the distance of mobile phone screen, and the plane where face is determined, distance of the mobile phone screen apart from the plane is calculated by CPU,
Further adjust the backlight illumination of mobile phone screen；Otherwise screen is closed automatically.
Shown in reference picture 2, the light sensor detection environmental light brightness described in step 101 includes：
The light sensor built in mobile phone detects to the environmental light brightness of surrounding；
The environmental light brightness information detected is sent to CPU by the light sensor.
Shown in reference picture 3, the preliminary regulation mobile phone screen backlight illumination described in step 101 includes：
CPU is analyzed multiple brightness information, including the tone of the analysis brightness information, saturation degree and
Brightness value, and environmental light brightness scene is determined according to the average value of the brightness information；
According to environmental light brightness scene matching screen backlight brightness.
Because the light sensor is multiple, it is averaged by calculating the environmental light intensity around mobile phone near multiple opening positions
Value, present handset size is increasing, and the environmental light intensity at identical environment at diverse location can be variant, so passing through
The ambient light intensity that the average value of multiple opening positions calculates is more smart closest to actual environment luminous intensity near mobile phone screen
Really.
The front camera of startup mobile phone described in step 102 in the present invention catches the mobile phone screen finding scope
Also include while interior scene information：
One of them described light range sensor built in mobile phone sends infrared ray to human eye；
The front camera catches the position of eyeball bright spot and pupil center；
The sight line vector of eyes is calculated by CPU.
In order to realize the accuracy of screen intensity, be divided into according to the distance of detection mobile phone screen to face it is N number of apart from section,
0<N<10, and N is integer, is correspondingly arranged N number of screen backlight brightness apart from section, and N number of screen backlight brightness is from bright to dark row
Row.
Shown in reference picture 4, the backlight illumination of the further regulation mobile phone screen described in step 103 includes：
Mobile phone CPU is within the time interval T seconds by repeating to transfer the range sensor detection face to mobile phone screen
Distance, and calculate average distance of the mobile phone screen apart from face；
Screen backlight brightness is matched according to average distance of the mobile phone screen apart from face.
Shown in reference picture 5, the invention also discloses a kind of display terminal, including：Mobile phone terminal 1, the mobile phone terminal tool
There are front camera 2, CPU and mobile phone screen 3；
Three light sensors 4, light sensor 4 and the mobile phone terminal 1 are additionally provided with the mobile phone terminal 1
CPU is connected, and is separately positioned on the diverse location of the mobile phone terminal 1, for detecting the environment bright of the mobile phone terminal 1
Degree；
Three range sensors 5, range sensor 5 and the mobile phone terminal 1 are additionally provided with the mobile phone terminal 1
CPU is connected, and be separately positioned on the diverse location of the mobile phone terminal 1, for detect the mobile phone screen 3 to face away from
From；
Screen saves electric unit, is connected with the CPU of the mobile phone terminal 1, by the preposition shooting for starting the mobile phone terminal 1
First 2 catch the scene information in the range of the finding of mobile phone screen 3, identify and whether there is face information in the scene information,
Identify whether user is currently just being look at the mobile phone terminal 1 according to the face information, the hand is controlled according to above-mentioned recognition result
The screen of machine terminal 1 opens and closes；
Screen intensity control unit, the mobile phone screen 3 is calculated to the distance of face by CPU, adjusts mobile phone screen 3
Backlight illumination.
Screen of the present invention saves electric unit and is arranged in the operating system of mobile phone terminal 1, the operation system of mobile phone terminal 1
System saves the screen intensity of electric unit adjustment mobile phone terminal 1 by the screen.
The present invention is accurate by multiple range sensor detecting distances, can automatically adjust the screen intensity of display terminal, full
The demand of sufficient user, be advantageous to save the electric energy that display terminal expends, reduce the electric energy loss of display terminal, reduce the day of user
Normal electric cost expenditure, work and life to user offer convenience, and are advantageous to strengthen the product use feeling of user, have great
Production practices meaning.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (8)
- A kind of 1. control method of mobile terminal screen brightness, it is characterised in that including：101st, environmental light brightness is detected by multiple light sensors built in mobile phone, it is preliminary to adjust mobile phone screen backlight illumination；102nd, start the scene information in the range of the front camera seizure mobile phone screen finding of mobile phone, identify the scene It whether there is face information in information, identify whether user is currently just being look at the mobile phone terminal according to the face information；When the 103rd, face information be present in the scene information and recognizing user and be currently just look at the mobile phone terminal, pass through hand Multiple range sensors built in machine detect face to the distance of mobile phone screen, and determine the plane where face, are counted by CPU Distance of the mobile phone screen apart from the plane is calculated, further adjusts the backlight illumination of mobile phone screen；Otherwise screen is closed automatically；The front camera of startup mobile phone described in step 102 catches the scene information in the range of the mobile phone screen finding Also include simultaneously：One of them described light range sensor built in mobile phone sends infrared ray to human eye；The front camera catches the position of eyeball bright spot and pupil center；The sight line vector of eyes is calculated by CPU.
- 2. the control method of a kind of mobile terminal screen brightness according to claim 1, it is characterised in that in step 101 Described light sensor detection environmental light brightness includes：The light sensor built in mobile phone detects to the environmental light brightness of surrounding；The environmental light brightness information detected is sent to CPU by the light sensor.
- 3. the control method of a kind of mobile terminal screen brightness according to claim 1, it is characterised in that in step 101 Described preliminary regulation mobile phone screen backlight illumination includes：CPU is analyzed multiple brightness information, includes tone, saturation degree and the brightness of the analysis brightness information Value, and environmental light brightness scene is determined according to the average value of the brightness information；According to environmental light brightness scene matching screen backlight brightness.
- 4. the control method of a kind of mobile terminal screen brightness according to claim 1, it is characterised in that according to detection hand The distance of machine screen to face be divided into it is N number of apart from section, 0<N<10, and N is integer, and N number of screen back is correspondingly arranged apart from section Brightness, and N number of screen backlight brightness is from bright to dark arrangement.
- 5. the control method of a kind of mobile terminal screen brightness according to claim 1, it is characterised in that in step 103 The backlight illumination of described further regulation mobile phone screen includes：The mobile phone CPU is within the time interval T seconds by repeating to transfer the range sensor detection face to mobile phone screen Distance, and calculate average distance of the mobile phone screen apart from face；Screen backlight brightness is matched according to average distance of the mobile phone screen apart from face.
- 6. a kind of display terminal, it using a kind of control method of mobile terminal screen brightness described in claim 1, it is special Sign is, including：Mobile phone terminal, the mobile phone terminal have front camera, CPU and mobile phone screen；More than one light sensor, it is connected with the CPU of the mobile phone terminal, and is separately positioned on the mobile phone terminal not Same position, for detecting the environmental light brightness of the mobile phone terminal；More than one range sensor, it is connected with the CPU of the mobile phone terminal, and is separately positioned on the mobile phone terminal not Same position, for detecting the mobile phone screen to the distance of face；Screen saves electric unit, is connected with the CPU of the mobile phone terminal, is caught by the front camera for starting the mobile phone terminal Scene information in the range of the mobile phone screen finding, identify and whether there is face information in the scene information, according to described Whether face information identification user is currently just being look at the mobile phone terminal, and the screen of the mobile phone terminal is controlled according to above-mentioned recognition result The curtain rises closes；Screen intensity control unit, the mobile phone screen is calculated to the distance of face by CPU, and adjust the back of the body of mobile phone screen Brightness.
- 7. a kind of display terminal according to claim 6, it is characterised in that the light sensor and range sensor point Wei not be 3.
- 8. a kind of display terminal according to claim 6, it is characterised in that the screen saves electric unit and is arranged on mobile phone end In the operating system at end, the operating system of mobile phone terminal saves the screen intensity of electric unit adjustment mobile phone terminal by the screen.
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| CN201410743225.6A CN104468912B (en) | 2014-12-08 | 2014-12-08 | A kind of control method and its display terminal of mobile terminal screen brightness |
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| CN104468912B true CN104468912B (en) | 2018-01-16 |
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