CN104468912A - Method for controlling luminance of screen of mobile terminal and display terminal - Google Patents
Method for controlling luminance of screen of mobile terminal and display terminal Download PDFInfo
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- CN104468912A CN104468912A CN201410743225.6A CN201410743225A CN104468912A CN 104468912 A CN104468912 A CN 104468912A CN 201410743225 A CN201410743225 A CN 201410743225A CN 104468912 A CN104468912 A CN 104468912A
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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 invention relates to a method for controlling the luminance of a screen of a mobile terminal and a display terminal. The method includes the steps that the environment light luminance is detected through a plurality of light sensors arranged in a mobile phone, and the backlight luminance of the screen of the mobile phone is primarily adjusted; a front-mounted camera of the mobile phone is started to capture scene information within a visible range of the screen of the mobile phone, and whether face information exists in the scene information or not is identified; if the face information exists in the scene information, the distance between the face and the screen of the mobile phone is detected through a plurality of distance sensors arranged in the mobile phone, the plane where the face is located is determined, the distance between the screen of the mobile phone and the plane is calculated through a CPU, and the backlight luminance of the screen of the mobile phone is further adjusted; if the face information does not exist in the scene information, the screen is automatically stopped. The method and the display terminal have the advantages that the distance is accurately detected through the multiple sensors, the luminance of the screen of the display terminal can be automatically adjusted, the requirements of users can be met, the electric energy consumed by the display terminal can be easily saved, the electric energy losses of the display terminal can be reduced, and the product use feelings of the users can be easily improved.
Description
Technical field
The present invention relates to communication technique field, especially relate to a kind of control method and display terminal thereof of mobile terminal screen brightness.
Background technology
Along with science and technology and the improving constantly of human living standard, smart mobile phone is more and more universal, but the certain bottleneck of the capacity of intelligent mobile phone battery development, the electricity how saving mobile phone when limited electricity to greatest extent becomes everybody topic of paying close attention to all very much.General, mobile phone electricity is most by display screen loss, and in order to realize automatic screen brilliance control, Chinese patent " electricity saving method that a kind of intelligent terminal is read ", the patent No. is: 201210297954.4.This patent is when the scene such as webpage or e-book read by mobile phone, first by light sensor testing environment brightness, preliminary adjustment mobile phone screen backlight illumination, then detect the distance of face to mobile phone by range sensor, adjusting screen backlight illumination, to reach more careful power saving object.But whether the program only has a range sensor not detect is that face is close, is just that face is close, certain point of face can only be detected, and face is not the structure of a plane, very high mistake can be caused to survey, cause and read discomfort, the waste of electricity.
Therefore, the present invention proposes a kind of control method and display terminal thereof of mobile terminal screen brightness, detect inaccurate to solve above-mentioned distance, cause and read discomfort, the problems such as the waste of electricity
Summary of the invention
The invention provides a kind of control method and display terminal thereof of mobile terminal screen brightness, detect inaccurate to solve distance of the prior art, cause and read discomfort, the problems such as the waste of electricity.
Technical problem solved by the invention realizes by the following technical solutions:
A control method for mobile terminal screen brightness, comprising: 101, by multiple light sensor testing environment brightness of embedded in mobile phone, preliminary adjustment mobile phone screen backlight illumination; 102, the front-facing camera of startup mobile phone catches the scene information within the scope of described mobile phone screen finding, identifies in described scene information whether there is face information; When 103, there is face information in described scene information, the distance of face to mobile phone screen is detected by multiple range sensors of embedded in mobile phone, and determine the plane at face place, calculate the distance of mobile phone screen apart from this plane by CPU, regulate the backlight illumination of mobile phone screen further; Otherwise automatically close screen.
As preferred technical scheme, the light sensor testing environment brightness described in step 101 comprises: the environmental light brightness of described light sensor to surrounding of embedded in mobile phone detects; The environmental light brightness information detected is sent to CPU by described light sensor.
As preferred technical scheme, preliminary adjustment mobile phone screen backlight illumination described in step 101 comprises: CPU analyzes multiple described brightness information, comprise tone, saturation and the brightness value of analyzing described brightness information, and according to the mean value determination environmental light brightness scene of described brightness information; Environmentally brightness scene matching screen backlight brightness.
Because described light sensor is multiple, by calculating the environmental light intensity mean value around mobile phone near multiple position, present handset size is increasing, the environmental light intensity being in diverse location place at identical environment can be variant, so the ambient light intensity calculated by the mean value of multiple position is closest to actual environment luminous intensity near mobile phone screen, more accurately.
As preferred technical scheme, the front-facing camera of the startup mobile phone described in step 102 also comprises while catching the scene information within the scope of described mobile phone screen finding: described in one of them of embedded in mobile phone, light range sensor sends infrared ray to human eye; Described front-facing camera catches the position of eyeball bright spot and pupil center; The sight line vector of eyes is calculated by CPU.
As preferred technical scheme, be divided between N number of distance regions according to detection of handset screen to the distance of face, 0<N<10, and N is integer, between distance regions, correspondence arranges N number of screen backlight brightness, and N number of screen backlight brightness arrangement from bright to dark.
As preferred technical scheme, the backlight illumination of the further adjustment mobile phone screen described in step 103 comprises: mobile phone CPU detects the distance of face to mobile phone screen by repeating to transfer described range sensor within time interval T second, and calculates the average distance of mobile phone screen apart from face; According to the average distance coupling screen backlight brightness of mobile phone screen distance face.
The invention also discloses a kind of display terminal, comprising: mobile phone terminal, described mobile phone terminal has front-facing camera, CPU and mobile phone screen; More than one light sensor, is connected with the CPU of described mobile phone terminal, and is separately positioned on the diverse location of described mobile phone terminal, for detecting the environmental light brightness of described mobile phone terminal; More than one range sensor, is connected with the CPU of described mobile phone terminal, and is separately positioned on the diverse location of described mobile phone terminal, for detecting the distance of described mobile phone screen to face; Electric unit economized by screen, be connected with the CPU of described mobile phone terminal, the scene information within the scope of described mobile phone screen finding is caught by the front-facing camera starting described mobile phone terminal, identify in described scene information whether there is face information, whether watching this mobile phone terminal attentively according to described face information identification user is current, the screen controlling this mobile phone terminal according to above-mentioned recognition result opens and closes; Screen intensity control unit, calculates the distance of described mobile phone screen to face by CPU, regulates the backlight illumination of mobile phone screen.
As preferred technical scheme, described light sensor and range sensor are respectively 3.
As preferred technical scheme, described screen is economized electric unit and is arranged in the operating system of mobile phone terminal, and the operating system of mobile phone terminal economizes the screen intensity of electric unit adjustment mobile phone terminal by described screen.
The beneficial effect that the present invention has is: the present invention is accurate by multiple range sensor detecting distance, automatically the screen intensity of display terminal can be regulated, meet the demand of user, be conducive to the electric energy that saving display terminal expends, reduce the electric energy loss of display terminal, reduce the daily electric cost expenditure of user, offer convenience to the work of user and life, the product use sense being conducive to strengthening user is subject to, and is of great practical significance.
Accompanying drawing explanation
In order to be illustrated more clearly in embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the present invention: a kind of flow chart of control method of mobile terminal screen brightness;
Fig. 2 is the present invention: a kind of flow chart of light sensor testing environment brightness of control method of mobile terminal screen brightness;
Fig. 3 is the present invention: a kind of flow chart of preliminary adjustment mobile phone screen backlight illumination of control method of mobile terminal screen brightness;
Fig. 4 is the present invention: a kind of flow chart of backlight illumination of further adjustment mobile phone screen of control method of mobile terminal screen brightness;
Fig. 5 is the present invention: a kind of structural representation of display terminal.
Embodiment
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.
With reference to shown in Fig. 1, a kind of control method of mobile terminal screen brightness, comprises the following steps:
101, by multiple light sensor testing environment brightness of embedded in mobile phone, preliminary adjustment mobile phone screen backlight illumination;
102, the front-facing camera of startup mobile phone catches the scene information within the scope of described mobile phone screen finding, identifies in described scene information whether there is face information;
When 103, there is face information in described scene information, the distance of face to mobile phone screen is detected by multiple range sensors of embedded in mobile phone, and determine the plane at face place, calculate the distance of mobile phone screen apart from this plane by CPU, regulate the backlight illumination of mobile phone screen further; Otherwise automatically close screen.
With reference to shown in Fig. 2, the light sensor testing environment brightness described in step 101 comprises:
The environmental light brightness of described light sensor to surrounding of embedded in mobile phone detects;
The environmental light brightness information detected is sent to CPU by described light sensor.
With reference to shown in Fig. 3, the preliminary adjustment mobile phone screen backlight illumination described in step 101 comprises:
CPU analyzes multiple described brightness information, comprises tone, saturation and the brightness value of analyzing described brightness information, and according to the mean value determination environmental light brightness scene of described brightness information;
Environmentally brightness scene matching screen backlight brightness.
Because described light sensor is multiple, by calculating the environmental light intensity mean value around mobile phone near multiple position, present handset size is increasing, the environmental light intensity being in diverse location place at identical environment can be variant, so the ambient light intensity calculated by the mean value of multiple position is closest to actual environment luminous intensity near mobile phone screen, more accurately.
The front-facing camera of the startup mobile phone described in the step 102 in the present invention also comprises while catching the scene information within the scope of described mobile phone screen finding:
Described in one of them of embedded in mobile phone, light range sensor sends infrared ray to human eye;
Described front-facing 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 between N number of distance regions according to detection of handset screen to the distance of face, 0<N<10, and N is integer, between distance regions, correspondence arranges N number of screen backlight brightness, and N number of screen backlight brightness arrangement from bright to dark.
With reference to shown in Fig. 4, the backlight illumination of the further adjustment mobile phone screen described in step 103 comprises:
Mobile phone CPU detects the distance of face to mobile phone screen by repeating to transfer described range sensor within time interval T second, and calculates the average distance of mobile phone screen apart from face;
According to the average distance coupling screen backlight brightness of mobile phone screen distance face.
With reference to shown in Fig. 5, the invention also discloses a kind of display terminal, comprising: mobile phone terminal 1, described mobile phone terminal has front-facing camera 2, CPU and mobile phone screen 3;
Described mobile phone terminal 1 is also provided with three light sensors 4, and light sensor 4 is connected with the CPU of described mobile phone terminal 1, and is separately positioned on the diverse location of described mobile phone terminal 1, for detecting the environmental light brightness of described mobile phone terminal 1;
Described mobile phone terminal 1 is also provided with three range sensors 5, and range sensor 5 is connected with the CPU of described mobile phone terminal 1, and is separately positioned on the diverse location of described mobile phone terminal 1, for detecting the distance of described mobile phone screen 3 to face;
Electric unit economized by screen, be connected with the CPU of described mobile phone terminal 1, the scene information within the scope of described mobile phone screen 3 finding is caught by the front-facing camera 2 starting described mobile phone terminal 1, identify in described scene information whether there is face information, whether watching this mobile phone terminal 1 attentively according to described face information identification user is current, the screen controlling this mobile phone terminal 1 according to above-mentioned recognition result opens and closes;
Screen intensity control unit, calculates the distance of described mobile phone screen 3 to face by CPU, regulates the backlight illumination of mobile phone screen 3.
Screen of the present invention is economized electric unit and is arranged in the operating system of mobile phone terminal 1, and the operating system of mobile phone terminal 1 economizes the screen intensity of electric unit adjustment mobile phone terminal 1 by described screen.
The present invention is accurate by multiple range sensor detecting distance, automatically the screen intensity of display terminal can be regulated, meet the demand of user, be conducive to the electric energy that saving display terminal expends, reduce the electric energy loss of display terminal, reduce the daily electric cost expenditure of user, offer convenience to the work of user and life, the product use sense being conducive to strengthening user is subject to, and is of great practical significance.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection range is defined by appending claims and equivalent thereof.
Claims (9)
1. a control method for mobile terminal screen brightness, is characterized in that, comprising:
101, by multiple light sensor testing environment brightness of embedded in mobile phone, preliminary adjustment mobile phone screen backlight illumination;
102, the front-facing camera of startup mobile phone catches the scene information within the scope of described mobile phone screen finding, identifies in described scene information whether there is face information;
When 103, there is face information in described scene information, the distance of face to mobile phone screen is detected by multiple range sensors of embedded in mobile phone, and determine the plane at face place, calculate the distance of mobile phone screen apart from this plane by CPU, regulate the backlight illumination of mobile phone screen further; Otherwise automatically close screen.
2. the control method of a kind of mobile terminal screen brightness according to claim 1, is characterized in that, the light sensor testing environment brightness described in step 101 comprises:
The environmental light brightness of described light sensor to surrounding of embedded in mobile phone detects;
The environmental light brightness information detected is sent to CPU by described light sensor.
3. the control method of a kind of mobile terminal screen brightness according to claim 1, is characterized in that, the preliminary adjustment mobile phone screen backlight illumination described in step 101 comprises:
CPU analyzes multiple described brightness information, comprises tone, saturation and the brightness value of analyzing described brightness information, and according to the mean value determination environmental light brightness scene of described brightness information;
Environmentally brightness scene matching screen backlight brightness.
4. the control method of a kind of mobile terminal screen brightness according to claim 1, is characterized in that, the front-facing camera of the startup mobile phone described in step 102 also comprises while catching the scene information within the scope of described mobile phone screen finding:
Described in one of them of embedded in mobile phone, light range sensor sends infrared ray to human eye;
Described front-facing camera catches the position of eyeball bright spot and pupil center;
The sight line vector of eyes is calculated by CPU.
5. the control method of a kind of mobile terminal screen brightness according to claim 1, it is characterized in that, be divided between N number of distance regions according to detection of handset screen to the distance of face, 0<N<10, and N is integer, between distance regions, correspondence arranges N number of screen backlight brightness, and N number of screen backlight brightness arrangement from bright to dark.
6. the control method of a kind of mobile terminal screen brightness according to claim 1, is characterized in that, the backlight illumination of the further adjustment mobile phone screen described in step 103 comprises:
Described mobile phone CPU detects the distance of face to mobile phone screen by repeating to transfer described range sensor within time interval T second, and calculates the average distance of mobile phone screen apart from face;
According to the average distance coupling screen backlight brightness of mobile phone screen distance face.
7. a display terminal, is characterized in that, comprising:
Mobile phone terminal, described mobile phone terminal has front-facing camera, CPU and mobile phone screen;
More than one light sensor, is connected with the CPU of described mobile phone terminal, and is separately positioned on the diverse location of described mobile phone terminal, for detecting the environmental light brightness of described mobile phone terminal;
More than one range sensor, is connected with the CPU of described mobile phone terminal, and is separately positioned on the diverse location of described mobile phone terminal, for detecting the distance of described mobile phone screen to face;
Electric unit economized by screen, be connected with the CPU of described mobile phone terminal, the scene information within the scope of described mobile phone screen finding is caught by the front-facing camera starting described mobile phone terminal, identify in described scene information whether there is face information, whether watching this mobile phone terminal attentively according to described face information identification user is current, the screen controlling this mobile phone terminal according to above-mentioned recognition result opens and closes;
Screen intensity control unit, calculates the distance of described mobile phone screen to face by CPU, and regulates the backlight illumination of mobile phone screen.
8. a kind of display terminal according to claim 7, is characterized in that, described light sensor and range sensor are respectively 3.
9. a kind of display terminal according to claim 7, is characterized in that, described screen is economized electric unit and is arranged in the operating system of mobile phone terminal, and the operating system of mobile phone terminal economizes the screen intensity of electric unit adjustment mobile phone terminal by described screen.
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