CN109920393A - Back light brightness regulating method and device - Google Patents
Back light brightness regulating method and device Download PDFInfo
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- CN109920393A CN109920393A CN201711318899.1A CN201711318899A CN109920393A CN 109920393 A CN109920393 A CN 109920393A CN 201711318899 A CN201711318899 A CN 201711318899A CN 109920393 A CN109920393 A CN 109920393A
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Abstract
The disclosure is directed to a kind of back light brightness regulating method and devices, which comprises determine the first currently detected light intensity value of light sensor；Determine that the light of default wave band passes through the total transmission ratio of touch screen；The second light intensity value of current environment is determined based on the first light intensity value and total transmission ratio；The backlight illumination of touch screen is adjusted according to the second light intensity value.The total transmittance value complement that the disclosure passes through touch screen by presetting the light of wave band repays environment light across the decaying of light intensity after touch screen, to obtain the actual light intensity of external environment, to which the backlight illumination for meeting human eye can be adjusted out according to the actual light intensity of external environment, the sense of discomfort of human eye is reduced.In addition, can be adapted with ambient brightness according to the backlight illumination that the actual light intensity of external environment is adjusted, reduce system power dissipation.
Description
Technical field
This disclosure relates to field of communication technology more particularly to a kind of back light brightness regulating method and device.
Background technique
Terminal device usually utilizes light sensor to obtain ambient brightness, and automatically adjusts touch screen according to ambient brightness
Backlight illumination, so that the backlight illumination of touch screen and ambient brightness are adapted.
In the related art, light sensor is located at the top of terminal device, is specifically located at close to the small of earpiece position
Below the transparent glass of hole shape, light can be detected directly by light sensor through the transparent glass of roundlet hole shape
It arrives, and then the backlight illumination of touch screen is adjusted in the light intensity that terminal device is detected according to light sensor.However, at present
For beauty, entire touch screen is usually applied into curing ink (for example, black, blue etc.), so that the roundlet hole shape is transparent
Glass can also be coated with one layer of ink, and environment light can be attenuated after passing through this layer of ink, and light sensor detects at this time
Light intensity is not practical external world's light intensity, and then the backlight illumination of terminal device adjusting and ambient brightness are also incompatible.
Summary of the invention
To overcome the problems in correlation technique, the embodiment of the present disclosure provides a kind of back light brightness regulating method and dress
It sets, to adjust out the backlight illumination for meeting human eye, reduces the sense of discomfort of human eye.
According to the first aspect of the embodiments of the present disclosure, a kind of back light brightness regulating method is provided, which comprises
Determine the first currently detected light intensity value of light sensor；
Determine that the light of default wave band passes through the total transmission ratio of touch screen；
The second light intensity value of current environment is determined based on first light intensity value and the total transmission ratio；
The backlight illumination of the touch screen is adjusted according to second light intensity value.
In one embodiment, the light that wave band is preset in the determination passes through the total transmission ratio of touch screen, it may include:
Default wave band is determined by incident radiation flux function, spectral luminous efficiency function and preset relation curve
Light passes through the first light radiant flux of touch screen, and the preset relation curve is for indicating between the wavelength of light and transmittance
Corresponding relationship；
The light of the default wave band is determined by incident radiation flux function and the spectral luminous efficiency function
The second light radiant flux when being incident on the touch screen；
Based on first light radiant flux and second light radiant flux, determine that the light of the default wave band passes through
The total transmission ratio of the touch screen.
In one embodiment, described to pass through incident radiation flux function, spectral luminous efficiency function and default pass
It is that curve determines in the step of light of default wave band passes through the first light radiant flux of touch screen, can be obtained by following formula
First light radiant flux:
Wherein, the λ1To λ2Indicate the wave-length coverage of the default wave band, the φin(λ) indicates the incident light spoke
Flux function is penetrated, it is describedIndicate transmittance when wavelength of light is λ, the v (λ) indicates the spectral luminous efficiency letter
Number.
In one embodiment, it is determined described by incident radiation flux function and the spectral luminous efficiency function
In the step of the second light radiant flux of the light of the default wave band when being incident on the touch screen, following formula can be passed through
Obtain second light radiant flux:
Wherein, the λ1To λ2Indicate the wave-length coverage of the default wave band, the φin(λ) indicates the incident light spoke
Flux function is penetrated, the v (λ) indicates the spectral luminous efficiency function.
In one embodiment, the backlight illumination that the touch screen is adjusted according to second light intensity value, it may include:
Based on the relational expression between second light intensity value and backlight illumination, back corresponding with second light intensity value is determined
Brightness values；
The backlight illumination of the touch screen is adjusted to the backlight brightness values.
According to the second aspect of an embodiment of the present disclosure, a kind of backlight illumination regulating device is provided, comprising:
First light intensity determining module is configured to determine that the first currently detected light intensity value of light sensor；
Transmittance determining module is configured to determine that the light of default wave band passes through the total transmission ratio of touch screen；
Second light intensity determining module is configured as working as front ring based on first light intensity value and total transmission ratio determination
Second light intensity value in border；
Luminance adjustment module is configured as adjusting the backlight illumination of the touch screen according to second light intensity value.
In one embodiment, the transmittance determining module, it may include:
First light radiant flux determines submodule, is configured as through incident radiation flux function, spectral luminous efficiency
Function and preset relation curve determine that the light of default wave band passes through the first light radiant flux of touch screen, the preset relation
Curve is used to indicate the corresponding relationship between the wavelength of light and transmittance；
Second light radiant flux determines submodule, is configured as through incident radiation flux function and the spectral light
Apparent efficiency function determines second light radiant flux of the light of the default wave band when being incident on the touch screen；
Transmittance determines submodule, is configured as based on first light radiant flux and second light radiant flux,
Determine that the light of the default wave band passes through the total transmission ratio of the touch screen.
In one embodiment, first light radiant flux determines the first light radiant flux in submodule, can be by such as
Lower formula obtains:
Wherein, the λ1To λ2Indicate the wave-length coverage of the default wave band, the φin(λ) indicates the incident light spoke
Flux function is penetrated, it is describedIndicate transmittance when wavelength of light is λ, the v (λ) indicates the spectral luminous efficiency letter
Number.
In one embodiment, second light radiant flux determines the second light radiant flux in submodule, can be by such as
Lower formula obtains:
Wherein, the λ1To λ2Indicate the wave-length coverage of the default wave band, the φin(λ) indicates the incident light spoke
Flux function is penetrated, the v (λ) indicates the spectral luminous efficiency function.
In one embodiment, the luminance adjustment module, it may include:
Brightness determines submodule, is configured as determining based on the relational expression between second light intensity value and backlight illumination
Backlight brightness values corresponding with second light intensity value；
Adjusting submodule is configured as the backlight illumination of the touch screen being adjusted to the backlight brightness values.According to this
The third aspect of open embodiment provides a kind of backlight illumination adjusting, comprising:
Processor；
Memory for storage processor executable instruction；
Wherein, the processor is configured to:
Determine the first currently detected light intensity value of light sensor；
Determine that the light of default wave band passes through the total transmission ratio of touch screen；
The second light intensity value of current environment is determined based on first light intensity value and the total transmission ratio；
The backlight illumination of the touch screen is adjusted according to second light intensity value.
The technical scheme provided by this disclosed embodiment can include the following benefits: terminal device can determine light
The light of the first currently detected light intensity value of sensor and default wave band passes through the total transmission ratio of touch screen, is then based on
First light intensity value and total transmission ratio determine the second light intensity value of current environment, and the back of touch screen is adjusted according to the second light intensity value
Brightness.Based on foregoing description it is found that the total transmittance value complement that the disclosure passes through touch screen by presetting the light of wave band repays ring
Border light passes through the decaying of light intensity after touch screen, to obtain the actual light intensity (the second light intensity value) of external environment, thus according to the external world
The actual light intensity of environment can adjust out the backlight illumination for meeting human eye, reduce the sense of discomfort of human eye.In addition, according to external environment
Actual light intensity adjust backlight illumination, can with ambient brightness be adapted, reduce system power dissipation.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
The disclosure can be limited.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows and meets implementation of the invention
Example, and be used to explain the principle of the present invention together with specification.
Figure 1A is a kind of flow chart of back light brightness regulating method shown according to an exemplary embodiment.
Figure 1B is a kind of schematic diagram of light sensor reception environment photoreduction process shown according to Figure 1A illustrated embodiment.
Fig. 2A is the flow chart of another back light brightness regulating method shown according to an exemplary embodiment.
Fig. 2 B is a kind of spectral luminous efficiency function curve synoptic diagram shown in A illustrated embodiment according to fig. 2.
Fig. 3 is the flow chart of another back light brightness regulating method shown according to an exemplary embodiment.
Fig. 4 is a kind of block diagram of backlight illumination regulating device shown according to an exemplary embodiment.
Fig. 5 is the block diagram of another backlight illumination regulating device shown according to an exemplary embodiment.
Fig. 6 is the block diagram of another backlight illumination regulating device shown according to an exemplary embodiment.
Fig. 7 is a kind of block diagram suitable for backlight illumination regulating device shown according to an exemplary embodiment.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistented with the present invention.On the contrary, they be only with it is such as appended
The example of device and method being described in detail in claims, some aspects of the invention are consistent.
Figure 1A is a kind of flow chart of back light brightness regulating method shown according to an exemplary embodiment；Figure 1B is basis
A kind of light sensor shown in Figure 1A illustrated embodiment receives the schematic diagram of environment photoreduction process, which can apply at end
End equipment (such as: smart phone, tablet computer) on, as shown in Figure 1A, which includes the following steps:
In a step 101, the first currently detected light intensity value of light sensor is determined.
In one embodiment, terminal device can determine that a light sensor detects every preset period of time
One light intensity value, with the backlight illumination for adjusting touch screen.The preset period of time can be arranged according to actual needs, for example,
Preset period of time can be 5 seconds.
In a step 102, determine that the light of default wave band passes through the total transmission ratio of touch screen.
Wherein, since the purpose of terminal device adjusting backlight luminance is to make one to arrive the brightness of touch screen and extraneous soon
The brightness of environment light is adapted, and the wave band that human eye can perceive is visible light wave range, therefore the default wave band in step 102 can
To be visible light wave segment limit, for example, visible light wave segment limit is 380nm to 780nm.
Specifically how to determine that the light of default wave band may refer to following figures across the description of the total transmission ratio of touch screen
The description of 2A illustrated embodiment is not described in detail first herein.
In step 103, the second light intensity value of current environment is determined based on the first light intensity value and total transmission ratio.
In one embodiment, the product of the first light intensity value and total transmission ratio can be determined as the second light intensity by terminal device
Value.To the luminosity compensation attenuated be returned by total transmission ratio.
Wherein, the second light intensity value is the actual light intensity value of external environment.
At step 104, the backlight illumination of touch screen is adjusted according to the second light intensity value.
The description for the backlight illumination how to adjust touch screen according to the second light intensity value may refer to following embodiment illustrated in fig. 3
Description, herein first be not described in detail.
In an exemplary scene, as shown in Figure 1B, environment light 10 is incident on the oil of the touch screen 11 of terminal device first
The surface of layer of ink 110, after the refraction decaying of ink layer 110, then with the transparent glass of hole shape on transmission touch screen 11
111 are incident on light sensor 12, and the diameter of the aperture can be configured according to the size of light sensor, light level
Device 12 detects the first light intensity value of environment light 10, and the first light intensity value is transferred on the processor 13 of terminal device, processing
Device 13 determines the second light intensity value of current environment based on first light intensity value and the total transmission ratio determined, and according to the second light intensity
Value adjusts the backlight illumination of touch screen 11.
In the present embodiment, terminal device can determine currently detected the first light intensity value and default wave of light sensor
The light of section passes through the total transmission ratio of touch screen, is then based on the first light intensity value and total transmission ratio determines the of current environment
Two light intensity values, and according to the backlight illumination of the second light intensity value adjusting touch screen.Based on foregoing description it is found that the disclosure is by presetting
The total transmittance value complement that the light of wave band passes through touch screen repays environment light across the decaying of light intensity after touch screen, to obtain extraneous ring
The actual light intensity (the second light intensity value) in border, thus can be adjusted out according to the actual light intensity of external environment meet human eye backlight it is bright
Degree, reduces the sense of discomfort of human eye.In addition, according to the backlight illumination that the actual light intensity of external environment is adjusted, it can be with ambient brightness
It is adapted, reduces system power dissipation.
In one embodiment, above-mentioned steps 102, it may include:
Default wave band is determined by incident radiation flux function, spectral luminous efficiency function and preset relation curve
Light passes through the first light radiant flux of touch screen, and the preset relation curve is for indicating between the wavelength of light and transmittance
Corresponding relationship；
The light of the default wave band is determined by incident radiation flux function and the spectral luminous efficiency function
The second light radiant flux when being incident on the touch screen；
Based on first light radiant flux and second light radiant flux, determine that the light of the default wave band passes through
The total transmission ratio of the touch screen.
In one embodiment, above-mentioned steps 102 by incident radiation flux function, spectral luminous efficiency function and
It, can be by as follows in the step of preset relation curve determines the light for presetting wave band across the first light radiant flux of touch screen
Formula obtains first light radiant flux:
Wherein, the λ1To λ2Indicate the wave-length coverage of the default wave band, the φin(λ) indicates the incident light spoke
Flux function is penetrated, it is describedIndicate transmittance when wavelength of light is λ, the v (λ) indicates the spectral luminous efficiency letter
Number.
In one embodiment, above-mentioned steps 102 are passing through incident radiation flux function and the spectral luminous efficiency
Function determined in the step of the second light radiant flux of the light of the default wave band when being incident on the touch screen, by such as
Lower formula obtains second light radiant flux:
Wherein, the λ1To λ2Indicate the wave-length coverage of the default wave band, the φin(λ) indicates the incident light spoke
Flux function is penetrated, the v (λ) indicates the spectral luminous efficiency function.
In one embodiment, above-mentioned steps 104, it may include:
Based on the relational expression between second light intensity value and backlight illumination, back corresponding with second light intensity value is determined
Brightness values；
The backlight illumination of the touch screen is adjusted to the backlight brightness values.
It is specific how adjusting backlight luminance, please refer to subsequent embodiment.
So far, the above method that the embodiment of the present disclosure provides, it is adjustable to go out to meet the backlight illumination of human eye, reduce human eye
Sense of discomfort.In addition, can be adapted, reduce with ambient brightness according to the backlight illumination that the actual light intensity of external environment is adjusted
System power dissipation.
The technical solution of embodiment of the present disclosure offer is provided below with specific embodiment.
Fig. 2A is the flow chart of another back light brightness regulating method shown according to an exemplary embodiment；Fig. 2 B is root
A kind of spectral luminous efficiency function curve synoptic diagram shown according to Fig. 2A illustrated embodiment, the present embodiment utilize the embodiment of the present disclosure
The above method of offer, to determine that the light of default wave band illustrates for the total transmission ratio of touch screen,
As shown in Figure 2 A, include the following steps:
In step 201, true by incident radiation flux function, spectral luminous efficiency function and preset relation curve
Surely the light of default wave band passes through the first light radiant flux of touch screen, the preset relation curve be used to indicate the wavelength of light with
Corresponding relationship between transmittance.
In one embodiment, terminal device can by incident radiation flux function, spectral luminous efficiency function with
And the product of preset relation curve is integrated to obtain the first light radiant flux in default wavelength band, obtains the first light radiation
Flux specific formula is as follows:
Wherein, λ1To λ2Indicate the wave-length coverage of the default wave band, the λ as described in above-mentioned steps 1021It can be 380nm, λ2
It can be 780nm, φin(λ) indicates incident radiation flux function,Indicate transmittance when wavelength of light is λ, v (λ) table
Show spectral luminous efficiency function.Separately below to incident radiation flux function, spectral luminous efficiency function and preset relation
Curve is described in detail.
Incident radiation flux function φin(λ): expression be environment light be incident on touch-control screen surfaces incident radiation it is logical
Flow function, different optical wavelength correspond to different incident radiation amount of flux, and its different corresponding incident light of touch screen material
Radiation flux function is also different, which can scan touch screen by spectrometer and obtain.
Spectral luminous efficiency function v (λ): expression is sensitivity of the human eye to different wavelengths of light, as shown in Figure 2 B, is led to
Normal spectral luminous efficiency function is divided into photopic vision and noctovision, and photopic vision refers to people in bright light environments to different wavelengths of light
Vision, noctovision refer to people in a dark environment to the vision of different wavelengths of light, wherein for photopic vision curve, wavelength
It is 1 that 555nm, which corresponds to spectral luminous efficiency maximum value, and the maximum value of noctovision curve is mobile to shortwave direction relative to photopic vision curve
50nm.
Terminal device is bent by incident radiation flux function, spectral luminous efficiency function and preset relation as a result,
Before line determines the first light radiant flux that the light of default wave band passes through touch screen, it can first determine the first light intensity value and preset
Size relation between threshold value, if the first light intensity value is more than preset threshold, spectral luminous efficiency function uses photopic vision curve,
If the first light intensity value is less than preset threshold, spectral luminous efficiency function uses noctovision curve.
Preset relation curveWhat is indicated is the corresponding relationship between the wavelength of light and transmittance, i.e., different waves
Length is corresponding with different transmittances,Relational expression can also scan touch screen by spectrometer and obtain.
In step 202, default wave band is determined by incident radiation flux function and spectral luminous efficiency function
Second light radiant flux of the light when being incident on touch screen.
In one embodiment, terminal device can be by incident radiation flux function and spectral luminous efficiency function
Product integrated to obtain the second light radiant flux in default wavelength band, obtain the specific formula of the second light radiant flux such as
Under:
Wherein, λ1To λ2Indicate the wave-length coverage of default wave band, φin(λ) indicates incident radiation flux function, v (λ) table
Show spectral luminous efficiency function.For λ1To λ2、φin(λ)、φinThe correlation that the description of (λ) may refer to above-mentioned steps 201 is retouched
It states, repeats no more.
It should be noted that the disclosure is not limited the execution sequence of step 201 and step 202, both can first hold
Row step 201 can also first carry out step 202.
In step 203, it is based on the first light radiant flux and the second light radiant flux, determines that the light of default wave band passes through
The total transmission ratio of touch screen.
In one embodiment, the ratio of the first light radiant flux and the second light radiant flux can be determined as by terminal device
The light of default wave band passes through the total transmission ratio of touch screen.Specific formula is as follows:
Wherein,What is indicated is the first light radiant flux,What is indicated is the second light radiant flux.
It should be noted that utilizing the total of above-mentioned steps 201 to the available different-waveband of principle described in step 203
Penetrate ratio, and then the transmittance values curve of available different-waveband.
In the present embodiment, terminal device can pass through incident radiation flux function, spectral luminous efficiency function and pre-
If relation curve determines that the light of default wave band passes through the first light radiant flux of touch screen, the preset relation curve is for indicating
Corresponding relationship between the wavelength and transmittance of light, and pass through incident radiation flux function and spectral luminous efficiency function
Determine second light radiant flux of the light of default wave band when being incident on touch screen, then again based on the first light radiant flux and
Second light radiant flux determines that the light of default wave band passes through the total transmission ratio of touch screen, for determining external environment
Actual light intensity.Containing receiving efficiency function of the human eye to light is met, (spectral light is regarded in the total transmission ratio determined due to the disclosure
Efficiency function), therefore the light intensity phase that the actual light intensity of the external environment obtained based on total transmittance value can be perceived with human eye
It adapts to.
Fig. 3 is the flow chart of another back light brightness regulating method shown according to an exemplary embodiment；The present embodiment
Using the embodiment of the present disclosure provide the above method, by how according to the second light intensity value adjust touch screen backlight illumination for into
Row exemplary illustration, as shown in figure 3, including the following steps:
In step 301, based on the relational expression between the second light intensity value and backlight illumination, determination is corresponding with the second light intensity value
Backlight brightness values.
In one embodiment, terminal device can be pre-configured with the relational expression of the second light intensity value and backlight illumination,
In step 302, the backlight illumination of touch screen is adjusted to determining backlight brightness values.
In the present embodiment, terminal device can directly obtain the by relational expression between the second light intensity value and backlight illumination
The corresponding backlight brightness values of two light intensity values, without carrying out complicated calculating, therefore backlight illumination is regulated the speed fastly.
Fig. 4 is a kind of block diagram of backlight illumination regulating device shown according to an exemplary embodiment, as shown in figure 4, dress
It sets and includes:
First light intensity determining module 41 is configured to determine that the first currently detected light intensity value of light sensor；
Transmittance determining module 42 is configured to determine that the light of default wave band passes through the total transmission ratio of touch screen；
Second light intensity determining module 43 is configured as current environment is determined based on the first light intensity value and total transmission ratio
Two light intensity values；
Luminance adjustment module 44 is configured as adjusting the backlight illumination of touch screen according to the second light intensity value.
Fig. 5 is the block diagram of another backlight illumination regulating device shown according to an exemplary embodiment, is based on above-mentioned Fig. 4
On the basis of illustrated embodiment, as shown in figure 5, the transmittance determining module 42, comprising:
First light radiant flux determines submodule 421, is configured as through incident radiation flux function, spectral light visual effect
Rate function and preset relation curve determine that the light of default wave band passes through the first light radiant flux of touch screen, and preset relation is bent
Line is used to indicate the corresponding relationship between the wavelength of light and transmittance；
Second light radiant flux determines submodule 422, is configured as through incident radiation flux function and spectral light
Apparent efficiency function determines second light radiant flux of the light of default wave band when being incident on touch screen；
Transmittance determines submodule 423, is configured as determining pre- based on the first light radiant flux and the second light radiant flux
If the light of wave band passes through the total transmission ratio of touch screen.
In one embodiment, first light radiant flux determines the first light radiant flux in submodule 421, by such as
Lower formula obtains:
Wherein, λ1To λ2Indicate the wave-length coverage of default wave band, φin(λ) indicates incident radiation flux function,Table
Show transmittance when wavelength of light is λ, v (λ) indicates spectral luminous efficiency function.
In one embodiment, second light radiant flux determines the second light radiant flux in submodule 422, by such as
Lower formula obtains:
Wherein, λ1To λ2Indicate the wave-length coverage of default wave band, φin(λ) indicates incident radiation flux function, v (λ) table
Show spectral luminous efficiency function.
Fig. 6 is the block diagram of another backlight illumination regulating device shown according to an exemplary embodiment, is based on above-mentioned Fig. 4
On the basis of illustrated embodiment, as shown in fig. 6, the transmittance determining module 44, comprising:
Brightness determines submodule 441, is configured as based on the relational expression between the second light intensity value and backlight illumination, determine with
The corresponding backlight brightness values of second light intensity value；
Adjusting submodule 442 is configured as the backlight illumination of touch screen being adjusted to backlight brightness values.
About the device in above-described embodiment, wherein modules execute the concrete mode of operation in related this method
Embodiment in be described in detail, no detailed explanation will be given here.
Fig. 7 is a kind of block diagram suitable for backlight illumination regulating device shown according to an exemplary embodiment.For example, dress
Setting 700 can be mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, medical treatment
Equipment, body-building equipment, personal digital assistant etc..
Referring to Fig. 7, device 700 may include following one or more components: processing component 702, memory 704, power supply
Component 706, multimedia component 708, audio component 710, the interface 712 of input/output (I/O), sensor module 714, and
Communication component 716.
The integrated operation of the usual control device 700 of processing component 702, such as with display, telephone call, data communication, phase
Machine operation and record operate associated operation.Processing component 702 may include that one or more processors 720 refer to execute
It enables, to perform all or part of the steps of the methods described above.In addition, processing component 702 may include one or more modules, just
Interaction between processing component 702 and other assemblies.For example, processing component 702 may include multi-media module, it is more to facilitate
Interaction between media component 708 and processing component 702.
Memory 704 is configured as storing various types of data to support the operation in equipment 700.These data are shown
Example includes the instruction of any application or method for operating on device 700, contact data, and telephone book data disappears
Breath, picture, video etc..Memory 704 can be by any kind of volatibility or non-volatile memory device or their group
It closes and realizes, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM) is erasable to compile
Journey read-only memory (EPROM), programmable read only memory (PROM), read-only memory (ROM), magnetic memory, flash
Device, disk or CD.
Power supply module 706 provides power supply for the various assemblies of device 700.Power supply module 706 may include power management system
System, one or more power supplys and other with for device 700 generate, manage, and distribute the associated component of power supply.
Multimedia component 708 includes the screen of one output interface of offer between described device 700 and user.One
In a little embodiments, screen may include liquid crystal display (LCD) and touch panel (TP).If screen includes touch panel, screen
Curtain may be implemented as touch screen, to receive input signal from the user.Touch panel includes one or more touch sensings
Device is to sense the gesture on touch, slide, and touch panel.The touch sensor can not only sense touch or sliding action
Boundary, but also detect duration and pressure associated with the touch or slide operation.In some embodiments, more matchmakers
Body component 708 includes a front camera and/or rear camera.When equipment 700 is in operation mode, such as screening-mode or
When video mode, front camera and/or rear camera can receive external multi-medium data.Each front camera and
Rear camera can be a fixed optical lens system or have focusing and optical zoom capabilities.
Audio component 710 is configured as output and/or input audio signal.For example, audio component 710 includes a Mike
Wind (MIC), when device 700 is in operation mode, when such as call mode, recording mode, and voice recognition mode, microphone is matched
It is set to reception external audio signal.The received audio signal can be further stored in memory 704 or via communication set
Part 716 is sent.In some embodiments, audio component 710 further includes a loudspeaker, is used for output audio signal.
I/O interface 712 provides interface between processing component 702 and peripheral interface module, and above-mentioned peripheral interface module can
To be keyboard, click wheel, button etc..These buttons may include, but are not limited to: home button, volume button, start button and lock
Determine button.
Sensor module 714 includes one or more sensors, and the state for providing various aspects for device 700 is commented
Estimate.For example, sensor module 714 can detecte the state that opens/closes of equipment 700, and the relative positioning of component, for example, it is described
Component is the display and keypad of device 700, and sensor module 714 can be with 700 1 components of detection device 700 or device
Position change, the existence or non-existence that user contacts with device 700,700 orientation of device or acceleration/deceleration and device 700
Temperature change.Sensor module 714 may include proximity sensor, be configured to detect without any physical contact
Presence of nearby objects.Sensor module 714 can also include optical sensor, such as CMOS or ccd image sensor, at
As being used in application.In some embodiments, which can also include acceleration transducer, gyro sensors
Device, Magnetic Sensor, pressure sensor or temperature sensor.
Communication component 716 is configured to facilitate the communication of wired or wireless way between device 700 and other equipment.Device
700 can access the wireless network based on communication standard, such as WiFi, 2G or 3G or their combination.In an exemplary implementation
In example, communication component 716 receives broadcast singal or broadcast related information from external broadcasting management system via broadcast channel.
In one exemplary embodiment, the communication component 716 further includes near-field communication (NFC) module, to promote short range communication.Example
Such as, NFC module can be based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra wide band (UWB) technology,
Bluetooth (BT) technology and other technologies are realized.
In the exemplary embodiment, device 700 can be believed by one or more application specific integrated circuit (ASIC), number
Number processor (DSP), digital signal processing appts (DSPD), programmable logic device (PLD), field programmable gate array
(FPGA), controller, microcontroller, microprocessor or other electronic components are realized, for executing the above method.
In the exemplary embodiment, a kind of non-transitorycomputer readable storage medium including instruction, example are additionally provided
It such as include the memory 704 of instruction, above-metioned instruction can be executed by the processor 720 of device 700 to complete the above method.For example,
The non-transitorycomputer readable storage medium can be ROM, random access memory (RAM), CD-ROM, tape, floppy disk
With optical data storage devices etc..
Wherein, processor 720 is configured as:
Determine the first currently detected light intensity value of light sensor；
Determine that the light of default wave band passes through the total transmission ratio of touch screen；
The second light intensity value of current environment is determined based on first light intensity value and the total transmission ratio；
The backlight illumination of the touch screen is adjusted according to second light intensity value.
Those skilled in the art will readily occur to its of the disclosure after considering specification and practicing disclosure disclosed herein
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the disclosure, these modifications, purposes or
Person's adaptive change follows the general principles of this disclosure and including the undocumented common knowledge in the art of the disclosure
Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the disclosure are by following
Claim is pointed out.
It should be understood that the present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present disclosure is only limited by the accompanying claims.
Claims (11)
1. a kind of back light brightness regulating method, which is characterized in that the described method includes:
Determine the first currently detected light intensity value of light sensor；
Determine that the light of default wave band passes through the total transmission ratio of touch screen；
The second light intensity value of current environment is determined based on first light intensity value and the total transmission ratio；
The backlight illumination of the touch screen is adjusted according to second light intensity value.
2. the method according to claim 1, wherein the light that wave band is preset in the determination passes through the total of touch screen
Transmittance values, comprising:
The light of default wave band is determined by incident radiation flux function, spectral luminous efficiency function and preset relation curve
Across the first light radiant flux of touch screen, the preset relation curve is used to indicate pair between the wavelength of light and transmittance
It should be related to；
Determine that the light of the default wave band is entering by incident radiation flux function and the spectral luminous efficiency function
It is mapped to the second light radiant flux when the touch screen；
Based on first light radiant flux and second light radiant flux, it is described to determine that the light of the default wave band passes through
The total transmission ratio of touch screen.
3. according to the method described in claim 2, it is characterized in that, described passing through incident radiation flux function, spectral light
Apparent efficiency function and preset relation curve determine the step of light of default wave band passes through the first light radiant flux of touch screen
In, first light radiant flux is obtained by following formula:
Wherein, the λ1To λ2Indicate the wave-length coverage of the default wave band, the φin(λ) indicates the incident radiation flux
Function, it is describedIndicate transmittance when wavelength of light is λ, the v (λ) indicates the spectral luminous efficiency function.
4. according to the method described in claim 2, it is characterized in that, described by incident radiation flux function and described
Spectral luminous efficiency function determines second light radiant flux of the light of the default wave band when being incident on the touch screen
In step, second light radiant flux is obtained by following formula:
Wherein, the λ1To λ2Indicate the wave-length coverage of the default wave band, the φin(λ) indicates the incident radiation flux
Function, the v (λ) indicate the spectral luminous efficiency function.
5. the method according to claim 1, wherein described adjust the touch screen according to second light intensity value
Backlight illumination, comprising:
Based on the relational expression between second light intensity value and backlight illumination, determine that backlight corresponding with second light intensity value is bright
Angle value；
The backlight illumination of the touch screen is adjusted to the backlight brightness values.
6. a kind of backlight illumination regulating device, which is characterized in that described device includes:
First light intensity determining module is configured to determine that the first currently detected light intensity value of light sensor；
Transmittance determining module is configured to determine that the light of default wave band passes through the total transmission ratio of touch screen；
Second light intensity determining module is configured as determining current environment based on first light intensity value and the total transmission ratio
Second light intensity value；
Luminance adjustment module is configured as adjusting the backlight illumination of the touch screen according to second light intensity value.
7. device according to claim 6, which is characterized in that the transmittance determining module, comprising:
First light radiant flux determines submodule, is configured as through incident radiation flux function, spectral luminous efficiency function
And preset relation curve determines that the light of default wave band passes through the first light radiant flux of touch screen, the preset relation curve
For indicating the corresponding relationship between the wavelength of light and transmittance；
Second light radiant flux determines submodule, is configured as through incident radiation flux function and the spectral light visual effect
Rate function determines second light radiant flux of the light of the default wave band when being incident on the touch screen；
Transmittance determines submodule, is configured as determining based on first light radiant flux and second light radiant flux
The light of the default wave band passes through the total transmission ratio of the touch screen.
8. device according to claim 7, which is characterized in that first light radiant flux determines first in submodule
Light radiant flux is obtained by following formula:
Wherein, the λ1To λ2Indicate the wave-length coverage of the default wave band, the φin(λ) indicates the incident radiation flux
Function, it is describedIndicate transmittance when wavelength of light is λ, the v (λ) indicates the spectral luminous efficiency function.
9. device according to claim 7, which is characterized in that second light radiant flux determines second in submodule
Light radiant flux is obtained by following formula:
Wherein, the λ1To λ2Indicate the wave-length coverage of the default wave band, the φin(λ) indicates the incident radiation flux
Function, the v (λ) indicate the spectral luminous efficiency function.
10. device according to claim 6, which is characterized in that the luminance adjustment module, comprising:
Brightness determines submodule, is configured as based on the relational expression between second light intensity value and backlight illumination, determining and institute
State the corresponding backlight brightness values of the second light intensity value；
Adjusting submodule is configured as the backlight illumination of the touch screen being adjusted to the backlight brightness values.
11. the device that a kind of backlight illumination is adjusted, which is characterized in that described device includes:
Processor；
Memory for storage processor executable instruction；
Wherein, the processor is configured to:
Determine the first currently detected light intensity value of light sensor；
Determine that the light of default wave band passes through the total transmission ratio of touch screen；
The second light intensity value of current environment is determined based on first light intensity value and the total transmission ratio；
The backlight illumination of the touch screen is adjusted according to second light intensity value.
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