CN109963005A - A kind of double screen brightness control system, method and computer storage medium - Google Patents
A kind of double screen brightness control system, method and computer storage medium Download PDFInfo
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- CN109963005A CN109963005A CN201910242345.0A CN201910242345A CN109963005A CN 109963005 A CN109963005 A CN 109963005A CN 201910242345 A CN201910242345 A CN 201910242345A CN 109963005 A CN109963005 A CN 109963005A
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- screen
- sensor
- mobile terminal
- light
- chief ray
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
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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
Abstract
The invention discloses a kind of double screen brightness control system and its methods, including mobile terminal, the front of mobile terminal is equipped with main screen, the back side of mobile terminal is equipped with vice screen, chief ray sensor is installed on the top side of the mobile terminal of main screen side, secondary light sensor is installed on the top side of the mobile terminal of vice screen side, soldering has signal processing module on circuit board inside mobile terminal, signal analysis module, micro process, pwm signal output module, main screen backlight module and vice screen backlight module, it is worked at the same time when screen enables chief ray sensor and light sensor when automatic backlight is adjusted, according to main screen, the service condition and chief ray sensor of vice screen and secondary light sensor data obtain final light sensation data to automatically adjust backlight pwm signal, promote display effect, promote user experience.
Description
Technical field
The present invention relates to double screen light modulation and its method, in particular to a kind of double screen brightness control system, method and calculating
Machine storage medium.
Background technique
With the development of science and technology, demand of the people to mobile phone is also higher and higher, market is occupied in nowadays smart phone
Dominant contribution, intelligent Dual-band Handy Phone also become one of hot spot.In the prior art there is also many Dual-band Handy Phones,
It substantially include fuselage and the main display that the fuselage upper surface is set, the outside of fuselage is provided with display screen carrier, and
And the display screen carrier is equipped with and is electrically connected to the auxiliary display screen of the main display, the main display and described when in use
Auxiliary display screen, which is in a plane, forms a large-size screen monitors.Above-mentioned Dual-band Handy Phone improves the structure of mobile phone, still, not
People are able to satisfy to the use demand of Dual-band Handy Phone, there is also defects in terms of human-computer interaction.In addition, for smart phone and
Speech, power consumption is well-known greatly, and in above-mentioned Dual-band Handy Phone, two screens are constantly in working condition, can greatly be consumed
Electricity, this not only will affect the use of user, more will affect the service life of mobile phone.
Mobile terminal device shows mainly there is TFT and two kinds of OLED on the market at present, main screen of two kinds of screens as mobile phone
Curtain all supports backlight illumination automatic adjustment, and auxiliary screen brightness does not support automatic regulating lightness or auxiliary screen to use main screen side
Optical sensor carrys out adjusting backlight luminance, poor so as to cause auxiliary screen backlight brightness regulation effect, influences user experience.
Summary of the invention
The purpose of the present invention is to provide a kind of double screen brightness control system and its methods, and there are major and minor light sensation data to obtain
Final light sensation data come the advantages of automatically adjusting backlight pwm signal, promote display effect, promote user experience, on solving
State the problem of proposing in background technique.
To achieve the above object, the invention provides the following technical scheme: a kind of double screen brightness control system, including movement are whole
End, which is characterized in that the front of mobile terminal is equipped with main screen, and the back side of mobile terminal is equipped with vice screen, the bottom of mobile terminal
USB interface is installed on end, chief ray sensor is installed on the top side of the mobile terminal of main screen side, vice screen side
Secondary light sensor is installed, by the chief ray sensor and secondary light sensor to double on the top side of mobile terminal
The brightness of screen is adjusted.
Further, soldering has signal processing module, signal analysis module, Wei Chu on the circuit board inside mobile terminal
Reason, pwm signal output module, main screen backlight module and vice screen backlight module.
Further, the output end of chief ray sensor and secondary light sensor connects with signal analysis module respectively,
The output end of signal analysis module connects with signal processing module, and the output end of signal processing module connects with micro process, micro- place
The output end of reason connects with pwm signal output module, the output end that pwm signal output module connects respectively with main screen backlight module
And vice screen backlight module connects；The chief ray sensor connects with main screen, detects the optical signal under main screen local environment,
The sensor of electric signal is converted optical signals to using light-sensitive element, its sensitive wave length is including red near visible wavelength
Outside line wavelength and ultraviolet wavelength；The secondary light sensor connects with vice screen, detects the optical signal under vice screen local environment,
The sensor of electric signal is converted optical signals to using light-sensitive element；The signal processing module is various types of for handling
Optical signal is known as Electric signal processing to the processing of electric signal, is exactly by the process that various expected purposes and requirement are processed
Electric signal after signal analysis module is analyzed is handled, and to extract the process of useful information, it is to signal
The treatment processes such as extract, convert, analyzing, integrating；The signal analysis module passes chief ray sensor and secondary light
Sensor acquisition data be filtered, the analysis of time domain, frequency domain and time-frequency domain, analyze result on interface to graphically
Display；The central processing unit that the micro process is made of a piece of or several large scale integrated circuit, these circuits execute
The function of control unit and arithmetic and logical unit (ALU) can complete instruction fetch, execute instruction, and with extraneous memory and logical block
The operation such as information is exchanged, the data detected respectively to chief ray sensor and secondary light sensor compare；The PWM
Signal output module is the equivalent waveform required out, to analog signal electricity by being modulated to a series of width of pulses
It is flat to carry out digital coding, analog control mode is realized by adjusting the variation of duty ratio come the variation of adjustment signal, energy etc..
Further, main screen backlight module connects with main screen, and main screen backlight module is irradiated to for its light issued
When in main screen, light can first pass through lower polarizing film and appear upwards, and light is changed polarization direction by main screen, and following light contacts arrive
Colored filter generates color, is finally incident on the intensity that upper polarizer determines emergent ray.
Further, vice screen connects with vice screen backlight module, and vice screen backlight module is irradiated to for its light issued
When in vice screen, light can first pass through lower polarizing film and appear upwards, and light is changed polarization direction by vice screen, and following light contacts arrive
Colored filter generates color, is finally incident on the intensity that upper polarizer determines emergent ray.
Further, pwm signal output module its according to the numerical value of corresponding chief ray sensor and secondary light sensor
The biasing for coming modulation transistor base stage or metal-oxide-semiconductor grid of difference, the change of Lai Shixian transistor or metal-oxide-semiconductor turn-on time, thus
Realize the working condition of control main screen backlight module or vice screen backlight module.
Further, the numerical difference of chief ray sensor and secondary light sensor is compared with predetermined luminance threshold value.
The present invention further discloses a kind of double screen brightness adjusting methods, comprising the following steps:
When mobile terminal enters wakeup process by suspend mode, mobile terminal judges currently used screen state, if worked as
It is preceding to use screen for main screen, then judge whether main screen enables automatic backlight regulatory function, if main screen not enabled automatic backlight tune
Section function is then pressed current setting brightness and is shown；If main screen enables automatic backlight regulatory function, mobile terminal controls key light
Line sensor and secondary light sensor work；Chief ray sensor is obtained in real time and secondary light sensor light sensation data are respectively
The light sensation data A1 of the light sensation data A0 of chief ray sensor, secondary light sensor are compared comparison by A0, A1；If current
The use of screen is vice screen, then judges whether vice screen enables automatic backlight regulatory function, if vice screen not enabled automatic backlight is adjusted
Function is then pressed current setting brightness and is shown；If vice screen enables automatic backlight regulatory function, mobile terminal controls chief ray
Sensor and secondary light sensor work；Obtain chief ray sensor in real time and secondary light sensor light sensation data be respectively A0,
The light sensation data A1 of the light sensation data A0 of chief ray sensor, secondary light sensor are compared comparison by A1.
Further, same type light level is used as far as possible for chief ray sensor in S3 and secondary light sensor
Device can share power supply, IIC interface, but it is not identical that the address IIC, which needs hardware configuration,.
The invention also discloses a kind of computer storage mediums, which is characterized in that the storage medium is stored with elastic component
The computer program of state change, the computer program can be executed by least one processor, bright with the double screen for realizing above-mentioned
The step of spending the method adjusted.
Compared with prior art, the beneficial effects of the present invention are:
The present invention is worked at the same time when screen enables chief ray sensor and light sensor when automatic backlight is adjusted, according to master
Screen, the service condition of vice screen and chief ray sensor and secondary light sensor data obtain final light sensation data to automatically adjust
Backlight pwm signal promotes display effect, promotes user experience.
Detailed description of the invention
From following description with reference to the accompanying drawings it will be further appreciated that the present invention.Component in figure is not drawn necessarily to scale,
But it focuses on and shows in the principle of embodiment.In the figure in different views, identical appended drawing reference is specified to be corresponded to
Part.
Fig. 1 is the hardware structural diagram for realizing the mobile terminal of each embodiment of the application；
Fig. 2 is a kind of communications network system architecture diagram provided by the embodiments of the present application；
Fig. 3 is the overall structure figure of the mobile terminal of the embodiment of the present application；
Fig. 4 is the backside structure figure of the mobile terminal of the embodiment of the present application；
Fig. 5 is a kind of module map of double screen brightness control system of the embodiment of the present application；
Fig. 6 is a kind of flow chart of double screen brightness adjusting method of the embodiment of the present application.
In figure: 1, mobile terminal；11, main screen；12, vice screen；13, USB interface；2, chief ray sensor；3, secondary light passes
Sensor；4, signal processing module；5, signal analysis module；6, micro process；7, pwm signal output module；8, main screen backlight module；
9, vice screen backlight module.
The embodiments will be further described with reference to the accompanying drawings for realization, functional characteristics and the advantage of the application purpose.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear；It is complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments, is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention make into
It is described in detail to one step, it is clear that the described embodiments are only some of the embodiments of the present invention, rather than whole implementation
Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
All other embodiment, shall fall within the protection scope of the present invention.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.It needs to illustrate
, the detailed description illustrated in conjunction with attached drawing is intended as the description to various configurations, wherein can be real without being intended to indicate that
Trample unique configuration of concepts described herein.Installation practice and embodiment of the method documented by herein will be following detailed
It is described in thin description, and passes through various frames, module, unit, component, circuit, step, process, algorithm etc. in the accompanying drawings
(be referred to as " element ") is shown.These elements can be used electronic hardware, computer software or any combination thereof and come
It realizes.It is implemented as hardware or software as these elements, depending on specific application and the design being applied on total system
Constraint.If the term in description and claims of this specification and Figure of description uses " first ", " second " etc.
Description, this kind description is not use to describe a particular order for distinguishing different objects.
It should be appreciated that ought use in this specification and in the appended claims, term " includes " and "comprising" instruction
Described feature, entirety, step, operation, the presence of element and/or component, but one or more of the other feature, whole is not precluded
Body, step, operation, the presence or addition of element, component and/or its set.It is also understood that the institute in this description of the invention
The term used is merely for the sake of being not intended to limit the present invention for the purpose of describing particular embodiments.Such as in description of the invention
With it is used in the attached claims like that, other situations unless the context is clearly specified, otherwise singular
" one ", "one" and "the" are intended to include plural form.It will be further appreciated that being wanted in description of the invention and appended right
Term "and/or" used in book is asked to refer to any combination and all possibility of one or more of associated item listed
Combination, and including these combinations.
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
In subsequent description, it is only using the suffix for indicating such as " module ", " component " or " unit " of element
Be conducive to explanation of the invention, itself there is no a specific meaning.Therefore, " module ", " component " or " unit " can mix
Ground uses.
Terminal can be implemented in a variety of manners.For example, terminal described in the present invention may include such as mobile phone, plate
Computer, laptop, palm PC, personal digital assistant (Personal Digital Assistant, PDA), portable
Media player (Portable Media Player, PMP), navigation device, wearable device, Intelligent bracelet, pedometer etc. move
The fixed terminals such as dynamic terminal, and number TV, desktop computer.
It will be illustrated by taking mobile terminal as an example in subsequent descriptions, it will be appreciated by those skilled in the art that in addition to special
Except element for moving purpose, the construction of embodiment according to the present invention can also apply to the terminal of fixed type.
Referring to Fig. 1, a kind of hardware structural diagram of its mobile terminal of each embodiment to realize the present invention, the shifting
Dynamic terminal 100 may include: RF (Radio Frequency, radio frequency) unit 101, WiFi module 102, audio output unit
103, A/V (audio/video) input unit 104, sensor 105, display unit 106, user input unit 107, interface unit
108, the components such as memory 109, processor 110 and power supply 111.It will be understood by those skilled in the art that shown in Fig. 1
Mobile terminal structure does not constitute the restriction to mobile terminal, and mobile terminal may include components more more or fewer than diagram,
Perhaps certain components or different component layouts are combined.
It is specifically introduced below with reference to all parts of the Fig. 1 to mobile terminal:
Radio frequency unit 101 can be used for receiving and sending messages or communication process in, signal sends and receivees, specifically, by base station
Downlink information receive after, to processor 110 handle；In addition, the data of uplink are sent to base station.In general, radio frequency unit 101
Including but not limited to antenna, at least one amplifier, transceiver, coupler, low-noise amplifier, duplexer etc..In addition, penetrating
Frequency unit 101 can also be communicated with network and other equipment by wireless communication.Any communication can be used in above-mentioned wireless communication
Standard or agreement, including but not limited to GSM (Global System of Mobile communication, global system for mobile telecommunications
System), GPRS (General Packet Radio Service, general packet radio service), CDMA2000 (Code
Division Multiple Access 2000, CDMA 2000), WCDMA (Wideband Code Division
Multiple Access, wideband code division multiple access), TD-SCDMA (Time Division-Synchronous Code
Division Multiple Access, TD SDMA), FDD-LTE (Frequency Division
Duplexing-Long Term Evolution, frequency division duplex long term evolution) and TDD-LTE (Time Division
Duplexing-Long Term Evolution, time division duplex long term evolution) etc..
WiFi belongs to short range wireless transmission technology, and mobile terminal can help user to receive and dispatch electricity by WiFi module 102
Sub- mail, browsing webpage and access streaming video etc., it provides wireless broadband internet access for user.Although Fig. 1 shows
Go out WiFi module 102, but it is understood that, and it is not belonging to must be configured into for mobile terminal, it completely can be according to need
It to omit within the scope of not changing the essence of the invention.
Audio output unit 103 can be in call signal reception pattern, call mode, record mould in mobile terminal 100
When under the isotypes such as formula, speech recognition mode, broadcast reception mode, by radio frequency unit 101 or WiFi module 102 it is received or
The audio data stored in memory 109 is converted into audio signal and exports to be sound.Moreover, audio output unit 103
Audio output relevant to the specific function that mobile terminal 100 executes can also be provided (for example, call signal receives sound, disappears
Breath receives sound etc.).Audio output unit 103 may include loudspeaker, buzzer etc..
A/V input unit 104 is for receiving audio or video signal.A/V input unit 104 may include graphics processor
(Graphics Processing Unit, GPU) 1041 and microphone 1042, graphics processor 1041 is in video acquisition mode
Or the image data of the static images or video obtained in image capture mode by image capture apparatus (such as camera) carries out
Reason.Treated, and picture frame may be displayed on display unit 106.Through graphics processor 1041, treated that picture frame can be deposited
Storage is sent in memory 109 (or other storage mediums) or via radio frequency unit 101 or WiFi module 102.Mike
Wind 1042 can connect in telephone calling model, logging mode, speech recognition mode etc. operational mode via microphone 1042
Quiet down sound (audio data), and can be audio data by such acoustic processing.Audio that treated (voice) data can
To be converted to the format output that can be sent to mobile communication base station via radio frequency unit 101 in the case where telephone calling model.
Microphone 1042 can be implemented various types of noises elimination (or inhibition) algorithms and send and receive sound to eliminate (or inhibition)
The noise generated during frequency signal or interference.
Mobile terminal 100 further includes at least one sensor 105, such as optical sensor, motion sensor and other biographies
Sensor.Specifically, optical sensor includes ambient light sensor and proximity sensor, wherein ambient light sensor can be according to environment
The light and shade of light adjusts the brightness of display panel 1061, and proximity sensor can close when mobile terminal 100 is moved in one's ear
Display panel 1061 and/or backlight.As a kind of motion sensor, accelerometer sensor can detect in all directions (general
For three axis) size of acceleration, it can detect that size and the direction of gravity when static, can be used to identify the application of mobile phone posture
(such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, percussion) etc.；
The fingerprint sensor that can also configure as mobile phone, pressure sensor, iris sensor, molecule sensor, gyroscope, barometer,
The other sensors such as hygrometer, thermometer, infrared sensor, details are not described herein.
Display unit 106 is for showing information input by user or being supplied to the information of user.Display unit 106 can wrap
Display panel 1061 is included, liquid crystal display (Liquid Crystal Display, LCD), Organic Light Emitting Diode can be used
Forms such as (Organic Light-Emitting Diode, OLED) configure display panel 1061.
User input unit 107 can be used for receiving the number or character information of input, and generate the use with mobile terminal
Family setting and the related key signals input of function control.Specifically, user input unit 107 may include touch panel 1071 with
And other input equipments 1072.Touch panel 1071, also referred to as touch screen collect the touch operation of user on it or nearby
(for example user uses any suitable objects or attachment such as finger, stylus on touch panel 1071 or in touch panel 1071
Neighbouring operation), and corresponding attachment device is driven according to preset formula.Touch panel 1071 may include touch detection
Two parts of device and touch controller.Wherein, the touch orientation of touch detecting apparatus detection user, and detect touch operation band
The signal come, transmits a signal to touch controller；Touch controller receives touch information from touch detecting apparatus, and by it
It is converted into contact coordinate, then gives processor 110, and order that processor 110 is sent can be received and executed.In addition, can
To realize touch panel 1071 using multiple types such as resistance-type, condenser type, infrared ray and surface acoustic waves.In addition to touch panel
1071, user input unit 107 can also include other input equipments 1072.Specifically, other input equipments 1072 can wrap
It includes but is not limited in physical keyboard, function key (such as volume control button, switch key etc.), trace ball, mouse, operating stick etc.
It is one or more, specifically herein without limitation.
Further, touch panel 1071 can cover display panel 1061, when touch panel 1071 detect on it or
After neighbouring touch operation, processor 110 is sent to determine the type of touch event, is followed by subsequent processing device 110 according to touch thing
The type of part provides corresponding visual output on display panel 1061.Although in Fig. 1, touch panel 1071 and display panel
1061 be the function that outputs and inputs of realizing mobile terminal as two independent components, but in certain embodiments, it can
The function that outputs and inputs of mobile terminal is realized so that touch panel 1071 and display panel 1061 is integrated, is not done herein specifically
It limits.
Interface unit 108 be used as at least one external device (ED) connect with mobile terminal 100 can by interface.For example,
External device (ED) may include wired or wireless headphone port, external power supply (or battery charger) port, wired or nothing
Line data port, memory card port, the port for connecting the device with identification module, audio input/output (I/O) end
Mouth, video i/o port, ear port etc..Interface unit 108 can be used for receiving the input from external device (ED) (for example, number
It is believed that breath, electric power etc.) and the input received is transferred to one or more elements in mobile terminal 100 or can be with
For transmitting data between mobile terminal 100 and external device (ED).
Memory 109 can be used for storing software program and various data.Memory 109 can mainly include storing program area
The storage data area and, wherein storing program area can (such as the sound of application program needed for storage program area, at least one function
Sound playing function, image player function etc.) etc.；Storage data area can store according to mobile phone use created data (such as
Audio data, phone directory etc.) etc..In addition, memory 109 may include high-speed random access memory, it can also include non-easy
The property lost memory, a for example, at least disk memory, flush memory device or other volatile solid-state parts.
Processor 110 is the control centre of mobile terminal, utilizes each of various interfaces and the entire mobile terminal of connection
A part by running or execute the software program and/or module that are stored in memory 109, and calls and is stored in storage
Data in device 109 execute the various functions and processing data of mobile terminal, to carry out integral monitoring to mobile terminal.Place
Managing device 110 may include one or more processing units；Preferably, processor 110 can integrate application processor and modulatedemodulate is mediated
Manage device, wherein the main processing operation system of application processor, user interface and application program etc., modem processor is main
Processing wireless communication.It is understood that above-mentioned modem processor can not also be integrated into processor 110.
Mobile terminal 100 can also include the power supply 111 (such as battery) powered to all parts, it is preferred that power supply 111
Can be logically contiguous by power-supply management system and processor 110, to realize management charging by power-supply management system, put
The functions such as electricity and power managed.
Although Fig. 1 is not shown, mobile terminal 100 can also be including bluetooth module etc., and details are not described herein.
Embodiment to facilitate the understanding of the present invention, the communications network system that mobile terminal of the invention is based below into
Row description.
Referring to Fig. 2, Fig. 2 is a kind of communications network system architecture diagram provided in an embodiment of the present invention, the communication network system
System is the LTE system of universal mobile communications technology, which includes UE (User Equipment, the use of successively communication connection
Family equipment) (the land Evolved UMTS Terrestrial Radio Access Network, evolved UMTS 201, E-UTRAN
Ground wireless access network) 202, EPC (Evolved Packet Core, evolved packet-based core networks) 203 and operator IP operation
204。
Specifically, UE201 can be above-mentioned terminal 100, and details are not described herein again.
E-UTRAN202 includes eNodeB2021 and other eNodeB2022 etc..Wherein, eNodeB2021 can be by returning
Journey (backhaul) (such as X2 interface) is connect with other eNodeB2022, and eNodeB2021 is connected to EPC203,
ENodeB2021 can provide the access of UE201 to EPC203.
EPC203 may include MME (Mobility Management Entity, mobility management entity) 2031, HSS
(Home Subscriber Server, home subscriber server) 2032, other MME2033, SGW (Serving Gate Way,
Gateway) 2034, PGW (PDN Gate Way, grouped data network gateway) 2035 and PCRF (Policy and
Charging Rules Function, policy and rate functional entity) 2036 etc..Wherein, MME2031 be processing UE201 and
The control node of signaling, provides carrying and connection management between EPC203.HSS2032 is all to manage for providing some registers
Such as the function of home location register (not shown) etc, and preserves some related service features, data rates etc. and use
The dedicated information in family.All customer data can be sent by SGW2034, and PGW2035 can provide the IP of UE 201
Address distribution and other functions, PCRF2036 are strategy and the charging control strategic decision-making of business data flow and IP bearing resource
Point, it selects and provides available strategy and charging control decision with charge execution function unit (not shown) for strategy.
IP operation 204 may include internet, Intranet, IMS (IP Multimedia Subsystem, IP multimedia
System) or other IP operations etc..
Although above-mentioned be described by taking LTE system as an example, those skilled in the art should know the present invention is not only
Suitable for LTE system, be readily applicable to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA with
And the following new network system etc., herein without limitation.
Based on above-mentioned mobile terminal hardware configuration and communications network system, each embodiment of the method for the present invention is proposed.
Fig. 3-4, a kind of double screen brightness control system, including mobile terminal 1, the front of mobile terminal 1 is please referred to be equipped with
Main screen 11, the back side of mobile terminal 1 are equipped with vice screen 12, are equipped with usb 13, main screen 11 1 on the bottom end of mobile terminal 1
Chief ray sensor 2, the top side of the mobile terminal 1 of 12 side of vice screen are installed on the top side of the mobile terminal 1 of side
On secondary light sensor 3 is installed, the numerical difference of chief ray sensor 2 and secondary light sensor 3 is compared with predetermined luminance threshold value
Compared with.
Referring to Fig. 5, soldering has signal processing module 4, signal analysis module 5, micro- on circuit board inside mobile terminal 1
Processing 6, pwm signal output module 7, main screen backlight module 8 and vice screen backlight module 9, chief ray sensor 2 and secondary light pass
The output end of sensor 3 connects with signal analysis module 5 respectively, output end and 4 phase of signal processing module of signal analysis module 5
It connecing, the output end of signal processing module 4 connects with micro process 6, and the output end of micro process 6 connects with pwm signal output module 7,
The output end that pwm signal output module 7 connects connects with main screen backlight module 8 and vice screen backlight module 9 respectively, main screen backlight
Module 8 connects with main screen 11, and when main screen backlight module 8 is irradiated in main screen 11 for its light issued, light can be first passed through
Lower polarizing film appears upwards, and light is changed polarization direction by main screen 11, and following light contacts to colored filter generate color,
It is finally incident on the intensity that upper polarizer determines emergent ray, vice screen 12 connects with vice screen backlight module 9, vice screen backlight module 9
When being irradiated in vice screen 12 for its light issued, light can first pass through lower polarizing film and appear upwards, and vice screen 12 turns light
Become polarization direction, following light contacts to colored filter generate color, are finally incident on upper polarizer and determine emergent ray
Intensity.
Chief ray sensor 2 connects with main screen 11, detects the optical signal under 11 local environment of main screen, will using light-sensitive element
Optical signal is converted to the sensor of electric signal, its sensitive wave length is near visible wavelength, including IR wavelength and ultraviolet
Line wavelength.
Secondary light sensor 3 connects with vice screen 12, detects the optical signal under 12 local environment of vice screen, will using light-sensitive element
Optical signal is converted to the sensor of electric signal.
Signal processing module 4 is processed for handling various types of optical signals by various expected purposes and requirement
Process, Electric signal processing is known as to the processing of electric signal, seek to the electric signal after signal analysis module 5 is analyzed progress
Processing, to extract the process of useful information, it is the treatment processes such as to extract, convert, analyzing, integrating to signal.
The data that signal analysis module 5 acquires chief ray sensor 2 and secondary light sensor 3 are filtered, when
The analysis in domain, frequency domain and time-frequency domain, analysis result are shown to graphically on interface.
The central processing unit that micro process 6 is made of a piece of or several large scale integrated circuit, these circuits execute control
The function of component and arithmetic and logical unit (ALU) processed can complete instruction fetch, execute instruction, and hand over extraneous memory and logical block
The operation such as information is changed, the data detected respectively to chief ray sensor 2 and secondary light sensor 3 compare.
Pwm signal output module 7 is the equivalent waveform required out by being modulated to a series of width of pulses,
Digital coding is carried out to analog signal level, the variation by adjusting duty ratio is realized come the variation of adjustment signal, energy etc.
Analog control mode, pwm signal output module 7 its according to the numerical difference of corresponding chief ray sensor 2 and secondary light sensor 3
Come the biasing of modulation transistor base stage or metal-oxide-semiconductor grid, the change of Lai Shixian transistor or metal-oxide-semiconductor turn-on time, to realize
Control the working condition of main screen backlight module 8 or vice screen backlight module 9.
The present invention provides another technical solution, a kind of method of double screen brightness control system, comprising the following steps:
Step S101: when mobile terminal 1 enters wakeup process by suspend mode, mobile terminal 1 judges currently used screen
State judges whether main screen 11 enables automatic backlight regulatory function, if main screen 11 if currently used screen is main screen 11
Not enabled automatic backlight regulatory function is then pressed current setting brightness and is shown；
Step S102: if main screen 11 enables automatic backlight regulatory function, mobile terminal 1 controls chief ray sensor 2
It works with secondary light sensor 3；
Step S103: obtaining chief ray sensor 2 and secondary 3 light sensation data of light sensor in real time is respectively A0, A1, will be led
The light sensation data A0 of light sensor 2, the light sensation data A1 of pair light sensor 3 are compared comparison, 2 He of chief ray sensor
Secondary light sensor 3 uses same type light sensor as far as possible, can share power supply, IIC interface, but the address IIC needs hardware
It is configured to not identical；
Step S104: if currently used screen is vice screen 12, judge whether vice screen 12 enables automatic backlight and adjust function
Can, current setting brightness, which is pressed, if 12 not enabled automatic backlight regulatory function of vice screen shows；
Step S105: if vice screen 12 enables automatic backlight regulatory function, mobile terminal 1 controls chief ray sensor 2
It works with secondary light sensor 3；
Step S106: obtaining chief ray sensor 2 and secondary 3 light sensation data of light sensor in real time is respectively A0, A1, will be led
The light sensation data A0 of light sensor 2, the light sensation data A1 of pair light sensor 3 are compared comparison.
Embodiment one:
If currently used screen is main screen 11, chief ray sensor light sensation data A0 is subtracted into secondary 3 light of light sensor
Feel data A1 difference and be greater than predetermined luminance threshold value △ A, then gives up secondary 3 light sensation data A1 of light sensor, by chief ray sensor 2
Light sensation data A0 automatically adjusts backlight pwm signal according to brightness value A as actual environment brightness value A, mobile terminal；If will lead
2 light sensation data A0 of light sensor subtract secondary 3 light sensation data A1 difference difference of light sensor less than predetermined luminance threshold value △ A and
Difference is greater than 0, then actual environment brightness value A=0.8*A0+0.2A1, and mobile terminal automatically adjusts backlight PWM according to brightness value A
Signal；
If 2 light sensation data A0 of chief ray sensor is subtracted secondary 3 light sensation data A1 difference difference of light sensor to be greater than
Predetermined luminance threshold value-△ A and difference is less than 0, then actual environment brightness value A=0.2*A0+0.8A1, mobile terminal is according to brightness
Value A automatically adjusts backlight pwm signal；If 2 light sensation data A0 of chief ray sensor is subtracted secondary 3 light sensation data of light sensor
A1 difference is less than predetermined luminance threshold value-△ A, then actual environment brightness value A=0.5*A0+0.5A1, and mobile terminal is according to brightness value
A automatically adjusts backlight pwm signal.
Embodiment two:
If currently used screen is vice screen 12, if secondary 3 light sensation data A1 of light sensor is subtracted chief ray sensing
2 light sensation data A0 difference of device is greater than predetermined luminance threshold value △ A, then gives up 2 light sensation data A0 of chief ray sensor, secondary light is passed
3 light sensation data A1 of sensor automatically adjusts backlight pwm signal according to brightness value A as actual environment brightness value A, mobile terminal；
If 2 light sensation data A0 of chief ray sensor is subtracted secondary 3 light sensation data A1 difference difference of light sensor to be less than
Predetermined luminance threshold value △ A and difference are greater than 0, then actual environment brightness value A=0.2*A0+0.8A1, and mobile terminal is according to brightness value
A automatically adjusts backlight pwm signal；If 2 light sensation data A0 of chief ray sensor is subtracted secondary 3 light sensation data A1 of light sensor
Difference difference is greater than predetermined luminance threshold value-△ A and difference less than 0, then actual environment brightness value A=0.8*A0+0.2A1, mobile
Terminal automatically adjusts backlight pwm signal according to brightness value A；
It is preset if secondary 3 light sensation data A1 of light sensor is subtracted 2 light sensation data A0 difference of chief ray sensor and is less than
Luminance threshold-△ A, then actual environment brightness value A=0.5*A0+0.5A1, mobile terminal automatically adjust backlight according to brightness value A
Pwm signal.
In conclusion this double screen brightness control system and its method, pass when screen enables chief ray when automatic backlight is adjusted
Sensor 2 and light sensor 3 work at the same time, according to main screen 11, the service condition of vice screen 12 and chief ray sensor 2 and secondary light
3 data of line sensor obtain final light sensation data to automatically adjust backlight pwm signal, promote display effect, promote user experience.
If the integrated unit in above-described embodiment is realized in the form of SFU software functional unit and as independent product
When selling or using, it can store in above-mentioned computer-readable storage medium.Based on this understanding, skill of the invention
Substantially all or part of the part that contributes to existing technology or the technical solution can be with soft in other words for art scheme
The form of part product embodies, which is stored in a storage medium, including some instructions are used so that one
Platform or multiple stage computers equipment (can be personal computer, server or network equipment etc.) execute each embodiment institute of the present invention
State all or part of the steps of method.
In the above embodiment of the invention, it all emphasizes particularly on different fields to the description of each embodiment, does not have in some embodiment
The part of detailed description, reference can be made to the related descriptions of other embodiments.
In several embodiments provided herein, it should be understood that disclosed client, it can be by others side
Formula is realized.Wherein, the apparatus embodiments described above are merely exemplary, such as the division of the unit, and only one
Kind of logical function partition, there may be another division manner in actual implementation, for example, multiple units or components can combine or
It is desirably integrated into another system, or some features can be ignored or not executed.Another point, it is shown or discussed it is mutual it
Between coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING or communication link of unit or module
It connects, can be electrical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
It should also be noted that, the terms "include", "comprise" or its any other variant are intended to nonexcludability
It include so that the process, method, commodity or the equipment that include a series of elements not only include those elements, but also to wrap
Include other elements that are not explicitly listed, or further include for this process, method, commodity or equipment intrinsic want
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including described want
There is also other identical elements in the process, method of element, commodity or equipment.
It will be understood by those skilled in the art that embodiments herein can provide as method, system or computer program product.
Therefore, complete hardware embodiment, complete software embodiment or embodiment combining software and hardware aspects can be used in the application
Form.It is deposited moreover, the application can be used to can be used in the computer that one or more wherein includes computer usable program code
The shape for the computer program product implemented on storage media (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.)
Formula.
Although describing the present invention by reference to various embodiments above, but it is to be understood that of the invention not departing from
In the case where range, many changes and modifications can be carried out.Therefore, be intended to foregoing detailed description be considered as it is illustrative and
It is unrestricted, and it is to be understood that following following claims (including all equivalents) is intended to limit spirit and model of the invention
It encloses.The above embodiment is interpreted as being merely to illustrate the present invention rather than limit the scope of the invention.It is reading
After the content of record of the invention, technical staff can be made various changes or modifications the present invention, these equivalence changes and
Modification equally falls into the scope of the claims in the present invention.
Claims (10)
1. a kind of double screen brightness control system, including mobile terminal, which is characterized in that the front of mobile terminal is equipped with main screen,
The back side of mobile terminal is equipped with vice screen, is equipped with chief ray sensor on the top side of the mobile terminal of main screen side, secondary
Shield and secondary light sensor is installed on the top side of the mobile terminal of side, is passed by the chief ray sensor and secondary light
The brightness of double screen is adjusted in sensor.
2. a kind of double screen brightness control system according to claim 1, it is characterised in that: the circuit board inside mobile terminal
Upper soldering has signal processing module, signal analysis module, micro process, pwm signal output module, main screen backlight module and vice screen
Backlight module.
3. a kind of double screen brightness control system according to claim 2, it is characterised in that: chief ray sensor and secondary light
The output end of sensor connects with signal analysis module respectively, and the output end of signal analysis module connects with signal processing module,
The output end of signal processing module connects with micro process, and the output end of micro process connects with pwm signal output module, pwm signal
The output end that output module connects connects with main screen backlight module and vice screen backlight module respectively；The chief ray sensor
Connect with main screen, detects the optical signal under main screen local environment, the sensing of electric signal is converted optical signals to using light-sensitive element
Device, its sensitive wave length is near visible wavelength, including IR wavelength and ultraviolet wavelength；The secondary light sensor
Connect with vice screen, detects the optical signal under vice screen local environment, the sensing of electric signal is converted optical signals to using light-sensitive element
Device；The signal processing module is processed for handling various types of optical signals by various expected purposes and requirement
Process, Electric signal processing is known as to the processing of electric signal, seek to the electric signal after signal analysis module is analyzed progress
Processing, to extract the process of useful information, it is the treatment processes such as to extract, convert, analyzing, integrating to signal；Institute
The signal analysis module stated is filtered the data of chief ray sensor and the acquisition of secondary light sensor, time domain, frequency domain
With the analysis of time-frequency domain, analyzes result and shown to graphically on interface；The micro process is big by a piece of or several
The central processing unit of scale integrated circuit composition, these circuits execute the function of control unit and arithmetic and logical unit (ALU), can complete
Instruction fetch executes instruction, and the operation such as information is exchanged with extraneous memory and logical block, to chief ray sensor and secondary light
The data that line sensor detects respectively compare；The pwm signal output module is by a series of width to pulses
Degree is modulated, and equivalent waveform required out carries out digital coding to analog signal level, passes through the variation for adjusting duty ratio
Carry out the variation of adjustment signal, energy etc. to realize analog control mode.
4. a kind of double screen brightness control system according to claim 3, it is characterised in that: main screen backlight module and main screen phase
It connects, when main screen backlight module is irradiated in main screen for its light issued, light can first pass through lower polarizing film and appear upwards, main
Light is changed polarization direction by screen, and following light contacts to colored filter generate color, are finally incident on upper polarizer and determine
Determine the intensity of emergent ray.
5. a kind of double screen brightness control system according to claim 4, it is characterised in that: vice screen and vice screen backlight module phase
It connects, when vice screen backlight module is irradiated in vice screen for its light issued, light can first pass through lower polarizing film and appear upwards, secondary
Light is changed polarization direction by screen, and following light contacts to colored filter generate color, are finally incident on upper polarizer and determine
Determine the intensity of emergent ray.
6. a kind of double screen brightness control system according to claim 5, it is characterised in that: its root of pwm signal output module
According to the biasing for coming modulation transistor base stage or metal-oxide-semiconductor grid of the numerical difference of corresponding chief ray sensor and secondary light sensor,
The change of transistor or metal-oxide-semiconductor turn-on time is realized, to realize the work of control main screen backlight module or vice screen backlight module
Make state.
7. a kind of double screen brightness control system according to claim 6, it is characterised in that: chief ray sensor and secondary light
The numerical difference of sensor is compared with predetermined luminance threshold value.
8. a kind of adjusting method of such as described in any item double screen brightness control systems of claim 1-7, which is characterized in that including
Following steps:
When mobile terminal enters wakeup process by suspend mode, mobile terminal judges currently used screen state, if currently made
It is main screen with screen, then judges whether main screen enables automatic backlight regulatory function, if main screen not enabled automatic backlight adjusts function
It can then be shown by current setting brightness；If main screen enables automatic backlight regulatory function, mobile terminal controls chief ray and passes
Sensor and secondary light sensor work；Chief ray sensor is obtained in real time and secondary light sensor light sensation data are respectively A0, A1,
The light sensation data A1 of the light sensation data A0 of chief ray sensor, secondary light sensor are compared comparison；If currently used screen
Curtain is vice screen, then judges whether vice screen enables automatic backlight regulatory function, if vice screen not enabled automatic backlight regulatory function
It is shown by current setting brightness；If vice screen enables automatic backlight regulatory function, mobile terminal controls chief ray sensor
It works with secondary light sensor；Obtaining chief ray sensor and secondary light sensor light sensation data in real time is respectively A0, A1, will be led
The light sensation data A0 of light sensor, the light sensation data A1 of pair light sensor are compared comparison.
9. a kind of method of double screen brightness control system according to any one of claims 8, which is characterized in that for chief ray sensing in S3
Device and secondary light sensor use same type light sensor as far as possible, can share power supply, IIC interface, but the address IIC needs firmly
Part is configured to not identical.
10. a kind of computer storage medium, which is characterized in that the storage medium is stored with the computer of elastic component state change
Program, the computer program can be executed by least one processor, to realize the side as described in claim 8 or claim 9
The step of method.
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