CN106652971B - A kind of terminal screen and brightness control system, brightness control method - Google Patents
A kind of terminal screen and brightness control system, brightness control method Download PDFInfo
- Publication number
- CN106652971B CN106652971B CN201510737347.9A CN201510737347A CN106652971B CN 106652971 B CN106652971 B CN 106652971B CN 201510737347 A CN201510737347 A CN 201510737347A CN 106652971 B CN106652971 B CN 106652971B
- Authority
- CN
- China
- Prior art keywords
- light
- photovoltaic cell
- cell layer
- layer
- output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A kind of terminal screen and brightness control system, brightness control method can be improved the detection accuracy of ambient light intensity, and then improve the control precision of screen luminance of terminal.The terminal screen from top to bottom successively includes protective layer, photovoltaic cell layer and display layer, in which: protective layer, for protecting photovoltaic cell layer and display layer；Photovoltaic cell layer, for converting light energy into power output；Display layer is used for display terminal data information.
Description
Technical field
The present invention relates to field of terminal technology, in particular to a kind of terminal screen and brightness control system, brightness controlling party
Method.
Background technique
In the various terminals with screen, such as in wearable device, mobile phone, tablet computer, terminal screen is big power consumption
Measure component.In order to reduce the power consumption of terminal screen, it usually needs according to ambient light intensity come the bright of real-time control terminal screen
Degree.A kind of terminal screen of mainstream from top to bottom mainly includes protective layer and display layer at present, in which: protective layer, for protecting
Display layer；Display layer is used for display terminal data information.The brightness of controlling terminal screen is substantially the display of controlling terminal screen
The brightness of layer.
In order to realize according to ambient light intensity come the brightness of real-time control terminal screen, a kind of scheme in the prior art is
An ambient light sensor is placed after terminal screen to detect ambient light intensity, according to the testing result control of ambient light sensor
The brightness of terminal screen processed.
However, scheme in the prior art, environment light needs protective layer and display layer across terminal screen that could irradiate
Onto ambient light sensor, there are biggish transmission path loss, and are located at the display layer above environmental sensor and shine
It will affect ambient light sensor, the ambient light intensity and actual ambient light intensity detected so as to cause ambient light sensor is inclined
Difference is larger；Also, in the use process of terminal, when environment light to ambient light sensor transmission path by chance by finger or its
When its object separates, also result in ambient light intensity that ambient light sensor detects and actual ambient light intensity deviation compared with
Greatly.Obviously, scheme in the prior art not can guarantee the detection accuracy of ambient light intensity, and then it is bright also not can guarantee terminal screen
The control precision of degree.
Summary of the invention
The embodiment of the present invention provides a kind of terminal screen and brightness control system, brightness control method, can be improved environment
The detection accuracy of luminous intensity, and then improve the control precision of screen luminance of terminal.
It from top to bottom successively include protective layer, photovoltaic cell layer and display layer in a first aspect, provide a kind of terminal screen,
Wherein:
The protective layer, for protecting the photovoltaic cell layer and the display layer；
The photovoltaic cell layer, for converting light energy into power output；
The display layer is used for display terminal data information.
It with reference to first aspect, in the first possible implementation, further include touch control layer, the touch control layer is located at described
Between protective layer and the photovoltaic cell layer, or between the photovoltaic cell layer and the display layer.
With reference to first aspect or the first possible implementation of first aspect, second of possible realization side
In formula, the protective layer is specially glassivation.
With reference to first aspect, second of possibility of the first possible implementation of first aspect or first aspect
Implementation, in the third possible implementation, the photovoltaic cell layer is specially organic compound photovoltaic cell layer.
Second aspect, provides a kind of brightness control system of terminal screen, and the terminal screen from top to bottom successively includes
Protective layer, photovoltaic cell layer and display layer, in which: the protective layer, for protecting the photovoltaic cell layer and the display layer；
The photovoltaic cell layer, for converting light energy into power output；The display layer is used for display terminal data information；It is described
Brightness control system includes:
Determining module, the output power of the photovoltaic cell layer for determining the terminal screen；According to determining output work
Rate determines ambient light intensity；
Control module, for controlling the brightness of the terminal screen according to determining ambient light intensity.
In conjunction with second aspect, in the first possible implementation, the determining module is specifically used for determining the light
It lies prostrate battery layers and the visible light in environment light is converted into output power caused by electric energy.
In conjunction with the first possible implementation of second aspect, in the second possible implementation, further includes:
Charging module, the electric energy for being exported based on the photovoltaic cell layer are end cell charging；
Sampling module, for sampling charging current when end cell charging；
The determining module is specifically used for determining that the photovoltaic cell layer will be in environment light according to the charging current
Visible light is converted to output power caused by electric energy.
In conjunction with second of possible implementation of second aspect, in the third possible implementation, the determination
Module is specifically used for determining that the visible light in environment light is converted to electricity by the photovoltaic cell layer when environment light is natural light
Output power caused by energy are as follows: (the 1- η %) of the gross output of the photovoltaic cell layer；When environment light is illumination light,
Determine that the visible light in environment light is converted to output power caused by electric energy by the photovoltaic cell layer are as follows: the photovoltaic cell
The gross output of layer；
Wherein, the gross output of the photovoltaic cell layer is true according to the voltage of the charging current and the end cell
It is fixed；η % is when environment light is natural light, and the photovoltaic cell layer is converted to the black light in environment light produced by electric energy
Output power in the gross output of the photovoltaic cell layer proportion.
In conjunction with the third possible implementation of second aspect, in the fourth possible implementation, it is described can not
Light-exposed includes infrared light.
In conjunction with the third possible implementation of second aspect, or combine the 4th kind of possible realization of second aspect
Mode, in a fifth possible implementation, the sampling module characterizes the charging current specifically for output
Characterize voltage；
The determining module is also used to when the characterization voltage is greater than preset value, determines that environment light is natural light；Work as institute
When stating characterization voltage no more than preset value, determine that environment light is illumination light.
The third aspect, provides a kind of brightness control method of terminal screen, and the terminal screen from top to bottom successively includes
Protective layer, photovoltaic cell layer and display layer, in which: the protective layer, for protecting the photovoltaic cell layer and the display layer；
The photovoltaic cell layer, for converting light energy into power output；The display layer is used for display terminal data information；It is described
Brightness control method includes:
Determine the output power of the photovoltaic cell layer of the terminal screen；
According to determining output power, ambient light intensity is determined；
According to determining ambient light intensity, the brightness of the terminal screen is controlled.
In conjunction with the third aspect, in the first possible implementation, the photovoltaic cell layer of the terminal screen is determined
Output power, specifically:
Determine that the visible light in environment light is converted to output power caused by electric energy by the photovoltaic cell layer.
In conjunction with the first possible implementation of the third aspect, in the second possible implementation, described in determination
Visible light in environment light is converted to output power caused by electric energy by photovoltaic cell layer, is specifically included:
Electric energy based on photovoltaic cell layer output is end cell charging；
Sample charging current when end cell charging；
According to the charging current, determine that the photovoltaic cell layer is converted to the visible light in environment light produced by electric energy
Output power.
In conjunction with second of possible implementation of the third aspect, in the third possible implementation, according to described
Charging current when end cell charges, determines that the photovoltaic cell layer is converted to the visible light in environment light produced by electric energy
Output power, comprising:
When environment light is natural light, determine that the visible light in environment light is converted to electric energy and is produced by the photovoltaic cell layer
Raw output power are as follows: (the 1- η %) of the gross output of the photovoltaic cell layer；
When environment light is illumination light, determine that the visible light in environment light is converted to electric energy and is produced by the photovoltaic cell layer
Raw output power are as follows: the gross output of the photovoltaic cell layer；
Wherein, the gross output of the photovoltaic cell layer is true according to the voltage of the charging current and the end cell
It is fixed；η % is when environment light is natural light, and the photovoltaic cell layer is converted to the black light in environment light produced by electric energy
Output power in the gross output of the photovoltaic cell layer proportion.
In conjunction with the third possible implementation of the third aspect, in the fourth possible implementation, it is described can not
Light-exposed includes infrared light.
In conjunction with the third possible implementation of the third aspect, or combine the 4th kind of possible realization of the third aspect
Mode, in a fifth possible implementation, sample the end cell charging when charging current when, specifically obtain table
Levy the characterization voltage of the charging current；
Specifically determine whether environment light is natural light in the following way:
When the characterization voltage is greater than preset value, determine that environment light is natural light；When the characterization voltage is no more than pre-
If when value, determining that environment light is illumination light.
Fourth aspect, provides a kind of brightness control system of terminal screen, and the terminal screen from top to bottom successively includes
Protective layer, photovoltaic cell layer and display layer, in which: the protective layer, for protecting the photovoltaic cell layer and the display layer；
The photovoltaic cell layer, for converting light energy into power output；The display layer is used for display terminal data information；It is described
Brightness control system includes:
Processor, the output power of the photovoltaic cell layer for determining the terminal screen；According to determining output power,
Determine ambient light intensity；And according to determining ambient light intensity, control the brightness of the terminal screen.
In conjunction with the first possible implementation of fourth aspect, in the second possible implementation, the processing
Visible light in environment light is converted to output power caused by electric energy specifically for the determination photovoltaic cell layer by device.
In conjunction with second of possible implementation of fourth aspect, in the third possible implementation, further includes:
Charger, the electric energy for being exported based on the photovoltaic cell layer are end cell charging；
The processor is also used to sample charging current when end cell charging；
The processor, is specifically used for according to the charging current, determine the photovoltaic cell layer by environment light can
It is light-exposed to be converted to output power caused by electric energy.
In conjunction with the third possible implementation of fourth aspect, in the fourth possible implementation, the processing
Device is specifically used for determining that the visible light in environment light is converted to electric energy by the photovoltaic cell layer when environment light is natural light
Generated output power are as follows: (the 1- η %) of the gross output of the photovoltaic cell layer；When environment light is illumination light, really
Visible light in environment light is converted to output power caused by electric energy by the fixed photovoltaic cell layer are as follows: the photovoltaic cell layer
Gross output；Wherein, the gross output of the photovoltaic cell layer is according to the charging current and the end cell
Voltage determines；η % is when environment light is natural light, and the black light in environment light is converted to electric energy by the photovoltaic cell layer
Generated output power proportion in the gross output of the photovoltaic cell layer.
In conjunction with the 4th kind of possible implementation of fourth aspect, in a fifth possible implementation, the processing
Device characterizes the characterization voltage of the charging current specifically for output；
The processor is also used to when the characterization voltage is greater than preset value, determines that environment light is natural light；When described
When characterizing voltage no more than preset value, determine that environment light is illumination light.
According to the brightness control system for the terminal screen that the terminal screen that first aspect provides, second aspect provide, third
The brightness control system for the terminal screen that the brightness control method or fourth aspect for the terminal screen that aspect provides provide, eventually
End screen includes protective layer, photovoltaic cell layer and display layer, and wherein photovoltaic cell layer is for converting light energy into power output, ring
Border luminous intensity is stronger, and the output power of photovoltaic cell layer is bigger, therefore can be determined according to the output power of photovoltaic cell layer
Ambient light intensity controls the brightness of terminal screen.Compared with the prior art, ambient lighting is mapped to the photovoltaic of terminal screen
The transmission path loss of battery layers is smaller, moreover, display layer is located at below photovoltaic cell layer, display layer, which shines, will not influence photovoltaic
Battery layers；Also, photovoltaic cell layer area is larger, is not easy to be blocked by finger or other objects；Therefore compared with the prior art, root
The ambient light intensity determined according to the output power of photovoltaic cell layer is more accurate, to the control precision of screen luminance of terminal also compared with
It is high.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, is implemented with the present invention
Example is used to explain the present invention together, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is one of the structural schematic diagram of terminal screen provided in an embodiment of the present invention；
Fig. 2 is the second structural representation of terminal screen provided in an embodiment of the present invention；
Fig. 3 is the third structural representation of terminal screen provided in an embodiment of the present invention；
Fig. 4 is one of the structural schematic diagram of brightness control system of terminal screen provided in an embodiment of the present invention；
Fig. 5 is the second structural representation of the brightness control system of terminal screen provided in an embodiment of the present invention；
Fig. 6 is the structural schematic diagram of sampling module in the brightness control system of terminal screen provided in an embodiment of the present invention；
Fig. 7 is the control flow schematic diagram of the brightness control system of terminal screen provided in an embodiment of the present invention；
Fig. 8 is the third structural representation of the brightness control system of terminal screen provided in an embodiment of the present invention；
Fig. 9 is the flow diagram of the brightness control method of terminal screen provided in an embodiment of the present invention.
Specific embodiment
In order to provide the realization for improving the detection accuracy of ambient light intensity and then improving the control precision of screen luminance of terminal
Scheme, the embodiment of the invention provides a kind of terminal screen and brightness control systems, brightness control method, below in conjunction with specification
Preferred embodiment of the present invention will be described for attached drawing, it should be understood that preferred embodiment described herein be merely to illustrate and
It explains the present invention, is not intended to limit the present invention.And in the absence of conflict, in the embodiment and embodiment in the application
Feature can be combined with each other.
The embodiment of the present invention provides a kind of terminal screen, as shown in Figure 1, from top to bottom successively may include protective layer 101,
Photovoltaic cell layer 102 and display layer 103, in which:
Protective layer 101, for protecting photovoltaic cell layer 102 and display layer 103；
Photovoltaic cell layer 102, for converting light energy into power output；
Display layer 103 is used for display terminal data information.
Terminal screen i.e. provided in an embodiment of the present invention may include three-decker:
First layer is protective layer 101, can protect other layers of terminal screen；
The second layer is photovoltaic cell layer 102, and the intensity of environment light is stronger, and the output power of photovoltaic cell layer 102 is bigger；I.e.
Photovoltaic cell layer 102 has output power and the positively related characteristic of ambient light intensity, therefore can use this characteristic, according to light
The output power of battery layers 102 is lied prostrate to determine ambient light intensity, the brightness of terminal screen is controlled；
Third layer is display layer 103, and the brightness of controlling terminal screen is substantially the brightness for controlling display layer 103.
Since display layer 103 is located at the lowest level of terminal screen, the light transmission of protective layer 101 and photovoltaic cell layer 102
Rate should be greater than 0, and the terminal data information for showing that user to display layer 103 is visible.The embodiment of the present invention does not limit protection
The specific light transmittance of layer 101 and photovoltaic cell layer 102.
In one particular embodiment of the present invention, protective layer 101 can be glassivation, and cost is relatively low.
In another specific embodiment of the invention, protective layer 101 or sapphire protective layer, wear resistance compared with
It is high.
In other specific embodiments of the invention, the protective layer of protective layer 101 or other materials, present invention reality
Example is applied to be not specifically limited in this embodiment.
In one particular embodiment of the present invention, photovoltaic cell layer 102 can be organic compound photovoltaic cell layer, easily
In presentation transparent effect.
In other specific embodiments of the invention, the photovoltaic cell layer of photovoltaic cell layer 102 or other types,
The embodiment of the present invention is not specifically limited in this embodiment.
Since the end product of current mainstream is touch screen terminal, terminal screen provided in an embodiment of the present invention is also
It may include touch control layer 104, the operation of user on a terminal screen such as clicked, slides and is converted to terminal control signal, it is real
The touch function of existing terminal.I.e. at this point, terminal screen provided in an embodiment of the present invention may include four-layer structure.
In one particular embodiment of the present invention, which can be as shown in Fig. 2, be located at protective layer 101 and light
It lies prostrate between battery layers 102；I.e. at this point, the first layer of terminal screen is protective layer 101, the second layer is touch control layer 104, third layer is
Photovoltaic cell layer 102, the 4th layer be display layer 103.
Using the structure of terminal screen shown in Fig. 2, the touch-control sensitivity of terminal is higher.
In another specific embodiment of the invention, which can also be as shown in figure 3, be located at photovoltaic cell
Between layer 102 and display layer 103；I.e. at this point, the first layer of terminal screen is protective layer 101, the second layer is photovoltaic cell layer
102, third layer be touch control layer 104, the 4th layer be display layer 103.
Compared to the structure of terminal screen shown in Fig. 2, using the structure of terminal screen shown in Fig. 3, ambient lighting is penetrated
Transmission path to the photovoltaic cell layer of terminal screen is shorter, therefore is more advantageous to the brightness control of terminal screen.
Terminal screen structure i.e. shown in FIG. 1 can be applied in various non-touch screen terminals, Fig. 2 or end shown in Fig. 3
End screen construction can be applied in various touch screen terminals.The terminal can be, but not limited to as wearable device, mobile phone, put down
Plate computer etc..
It, can be according to the demand of practical application scene come the specific structure shape for determining the terminal screen used when actual implementation
Formula.
Obviously, compared with the prior art, using terminal screen provided in an embodiment of the present invention, ambient lighting is mapped to end panel
The transmission path loss of the photovoltaic cell layer of curtain is smaller, moreover, display layer is located at below photovoltaic cell layer, display layer shines will not
Influence photovoltaic cell layer；Also, photovoltaic cell layer area is larger, is not easy to be blocked by finger or other objects.Therefore compared to existing
There is technology, the ambient light intensity determined according to the output power of photovoltaic cell layer is more accurate, the control to screen luminance of terminal
Precision processed is also higher.
The embodiment of the invention also provides a kind of brightness control systems of above-mentioned terminal screen, as shown in figure 4, can wrap
It includes:
Determining module 401, the output power of the photovoltaic cell layer for determining terminal screen；According to determining output work
Rate determines ambient light intensity；
Control module 402, the ambient light intensity for being determined according to determining module 401, the brightness of controlling terminal screen.
In the prior art, every kind of photovoltaic cell all has the relation curve of output power and ambient light intensity, i.e. output work
Rate and ambient light intensity have corresponding relationship.Accordingly, it is determined that module 401 is after determining the output power of photovoltaic cell layer, it can
To determine ambient light intensity according to the corresponding relationship.
In one particular embodiment of the present invention, determining module 401 can be specifically used for determining the photovoltaic of terminal screen
The gross output of battery layers；According to determining gross output, ambient light intensity is determined.
Under normal circumstances, environment light or it is illumination light or is natural light.
The light of illumination light is that human eye is visible substantially, i.e., when environment light be illumination light when, photovoltaic cell layer it is total defeated
Power is all it will be seen that light is converted to output power caused by electric energy out.
And the light of natural light, a part are that human eye is visible, another part is that human eye is sightless；When environment light is certainly
When right light, the gross output of photovoltaic cell layer includes two parts, a part be it will be seen that light be converted to it is defeated caused by electric energy
Power out, another part are that black light is converted to output power caused by electric energy.
Therefore, in order to keep brightness control scheme more reasonable, in another specific embodiment of the invention, determining module
401, it can be specifically used for determining that the visible light in environment light is converted to output power caused by electric energy by photovoltaic cell layer, benefit
Ambient light intensity is determined with the corresponding output power of visible light, and the ambient light intensity determined at this time is substantially visible light intensity
Degree, and then the brightness of controlling terminal screen, can be excessively high to avoid screen luminance of terminal under natural light environment, obtains user more preferably
Usage experience.
It should be noted that is occurred in the embodiment of the present invention visible refers both to human eye as it can be seen that occurring in the embodiment of the present invention
Invisible to refer both to human eye invisible.
Further, control module 402, specifically for the ambient light intensity determined according to determining module 401, controlling terminal
The display layer brightness of screen；Determining module 401 determine ambient light intensity it is stronger, 402 controlling terminal screen of control module it is bright
Degree is higher, i.e. the display layer brightness of controlling terminal screen is higher；The ambient light intensity that determining module 401 determines is weaker, controls mould
The brightness of 402 controlling terminal screen of block is lower, i.e. the display layer brightness of controlling terminal screen is lower.
When actual implementation, above-mentioned determining module 401 and control module 402 can be realized using two processor chips,
It can be realized using a processor chips.
In brightness control system provided in an embodiment of the present invention, the light of terminal screen can be specifically determined using various ways
Lie prostrate battery layers gross output, or determine photovoltaic cell layer the visible light in environment light is converted to it is defeated caused by electric energy
Power out.
Just it is to determine that the visible light in environment light is converted to output power caused by electric energy by photovoltaic cell layer below
Example, is illustrated the specific implementation of the brightness control system of terminal screen provided in an embodiment of the present invention.
As shown in figure 5, the brightness control system of terminal screen provided in an embodiment of the present invention can specifically include:
Charging module 501, the electric energy for being exported based on photovoltaic cell layer are end cell charging；
Sampling module 502, for sampling charging current when end cell charging；
Determining module 503, for determining that the visible light in environment light is converted to electricity by photovoltaic cell layer according to charging current
Output power caused by energy；According to determining output power, ambient light intensity is determined；
Control module 504, the ambient light intensity for being determined according to determining module 401, the brightness of controlling terminal screen.
Wherein, charging module 501 is substantially a power-supply management system, and the electric energy that photovoltaic cell layer exports was switched to end
Hold the charging current of battery charging.
Sampling module 502 can specifically sample the charging current by sampling resistor R, and output characterizes the charging
The characterization voltage V of size of current.Sampling module 502 can specifically be realized using circuit shown in fig. 6, can also use existing skill
Other current sampling circuits in art are realized.
Determining module 503 can determine charging current according to the size for the characterization voltage that sampling module 502 exports
Size.When sampling module 502 uses circuit shown in fig. 6 as concrete implementation circuit, can be determined based on following formula
Charging current I:
I=(V/n)/R；
Wherein, n is the amplification factor of amplifier in Fig. 6.
Further, when environment light is natural light, determining module 503 determines that photovoltaic cell layer will be visible in environment light
Light is converted to output power P caused by electric energy1Are as follows: (the 1- η %) of the gross output of photovoltaic cell layer；Wherein, photovoltaic electric
The gross output of pond layer is according to the voltage V of charging current I and end cellbatIt determines；η % be when environment light is natural light,
Black light in environment light is converted to output power caused by electric energy in total output of photovoltaic cell layer by photovoltaic cell layer
Proportion in power；I.e. at this time:
P1=I × Vbat× (1- η %)；
When environment light is illumination light, determining module 503 determines that photovoltaic cell layer is converted to the visible light in environment light
Output power P caused by electric energy2Are as follows: the gross output of photovoltaic cell layer；I.e. at this time:
P2=I × Vbat。
When environment light is natural light, black light mainly includes infrared light and ultraviolet light, and ultraviolet light proportion is seldom,
So can be ignored.I.e. at this point, above-mentioned η % is specifically as follows when environment light is natural light, photovoltaic cell layer is by environment
Infrared light in light is converted to the proportion in the gross output of photovoltaic cell layer of output power caused by electric energy.
Further, determining module 503 can be also used for determining environment according to the characterization voltage that sampling module 502 exports
Light is natural light or illumination light；Specifically, determining environment when the characterization voltage that sampling module 502 exports is greater than preset value
Light is natural light；When sampling module 502 export characterization voltage be not more than preset value when, determine environment light be illumination light, i.e., this
When environment light be light.
The determination principle of above-mentioned preset value and how determining is illustrated below.
Illumination (unit lux (lux)) difference of illumination light and natural light is bigger.For example, the headlamp of 40w
The illumination of bubble is 50lux, the illumination of the headlamp of house is 200lux, the illumination of the headlamp of office is 500lux, supermarket
Headlamp illumination be 1000lux；And the illumination of the natural light of rainy day is 10000lux, the illumination of the natural light at cloudy day is
20000lux, broken sky natural light illumination be 50000lux, the illumination of the natural light of fine day is 100000lux.
By the illumination data of headlamp and natural light in above-mentioned various situations it is found that the illumination of illumination light is generally less than
1000lux, the illumination of natural light is generally in 10000lux or more.Therefore, the illumination point of illumination light and natural light can first be set
Boundary line, i.e., value is (according to above-mentioned illumination data, as between the maximal illumination of common illumination light and the minimal illumination of natural light
In 1000lux and 10000lux value) it is used as illumination line of demarcation, then using the corresponding voltage in illumination line of demarcation as determination
The foundation of preset value.For example, can be using the corresponding voltage in illumination line of demarcation as preset value.
Illumination-the voltage for the photovoltaic material that the corresponding voltage in above-mentioned illumination line of demarcation is specifically used using photovoltaic cell layer
Curve determines.Illumination-voltage curve may be linear, it is also possible to it is nonlinear, but all has when illumination increases, it is right
The voltage answered also increases, when illumination reduces, characteristic that corresponding voltage also reduces, wherein each photovoltaic material corresponding one
A illumination-voltage curve, the corresponding illumination-voltage curve of different photovoltaic materials be not generally identical.
Such as: assuming that the photovoltaic material for taking 5000lux to use as the line of demarcation of illumination light and natural light, photovoltaic cell layer
A, if the corresponding voltage of 5000lux is 0.8V on illumination-voltage curve of photovoltaic material A, and taking 0.8V is preset value,
Then when the characterization voltage that sampling module 502 exports is less than 0.8V, determine that environment light is illumination light；When sampling module 502 exports
Characterization voltage be greater than 0.8V when, determine environment light be natural light.
In embodiments of the present invention, above-mentioned determining module 503 and control module 504 can use a MCU (Micro
Controller Unit, micro-control unit) it realizes, the table exported using the analog-digital converter sampling sampling module 502 in MCU
Levy voltage, the specific control flow of MCU can with as shown in fig. 7, specifically include the following steps:
Step 701 judges to characterize whether voltage V is greater than preset value.
When characterizing voltage V greater than preset value, environment light is natural light at this time, enters step 702；
When characterizing voltage V no more than preset value, environment light is illumination light at this time, enters step 703.
Step 702 is based on formula P1=I × Vbat× (1- η %) determines that photovoltaic cell layer turns the visible light in environment light
It is changed to output power caused by electric energy, enters step 704.
Step 703 is based on formula P2=I × VbatDetermine that the visible light in environment light is converted to electric energy by photovoltaic cell layer
Generated output power, enters step 704.
Step 704, according to the corresponding relationship of output power and ambient light intensity, determine the determining corresponding ring of output power
Border luminous intensity.
Step 705, according to the display layer brightness of determining ambient light intensity controlling terminal screen.
In addition, the embodiment of the invention also provides a kind of brightness control systems of above-mentioned terminal screen, as shown in figure 8, can
To include:
Processor 81, the output power of the photovoltaic cell layer for determining the terminal screen；According to determining output work
Rate determines ambient light intensity；And according to determining ambient light intensity, control the brightness of the terminal screen.
Further, the processor converts the visible light in environment light specifically for the determination photovoltaic cell layer
For output power caused by electric energy.
Further, further includes: charger 82, wherein processor 81 and charger 82 are connected by communication bus 83；
Charger 82, the electric energy for being exported based on the photovoltaic cell layer are end cell charging；
The processor 81 is also used to sample charging current when end cell charging；
The processor 81 is specifically used for determining that the photovoltaic cell layer will be in environment light according to the charging current
Visible light is converted to output power caused by electric energy.
Further, the processor is specifically used for determining the photovoltaic cell layer by ring when environment light is natural light
Visible light in the light of border is converted to output power caused by electric energy are as follows: (the 1- of the gross output of the photovoltaic cell layer
η %)；When environment light is illumination light, determine that the photovoltaic cell layer is converted to the visible light in environment light produced by electric energy
Output power are as follows: the gross output of the photovoltaic cell layer；Wherein, the gross output of the photovoltaic cell layer is according to institute
The voltage for stating charging current and the end cell determines；η % is when environment light is natural light, and the photovoltaic cell layer is by ring
It is shared in the gross output of the photovoltaic cell layer that black light in the light of border is converted to output power caused by electric energy
Ratio.
Further, the processor 81 characterizes the characterization voltage of the charging current specifically for output；
The processor 81 is also used to when the characterization voltage is greater than preset value, determines that environment light is natural light；Work as institute
When stating characterization voltage no more than preset value, determine that environment light is illumination light.
It should be noted that processor 81 can be a general central processor (CPU), microprocessor, specific application
Integrated circuit (Application-Specific Integrated Circuit, ASIC), or it is one or more for controlling this
The integrated circuit that scheme of the invention program executes.
Control system provided in an embodiment of the present invention can be applied to Fig. 1, Fig. 2 or Fig. 3 it is any shown in terminal screen, energy
The detection accuracy of ambient light intensity is enough improved, and then improves the control precision of screen luminance of terminal.
Based on the same inventive concept, the brightness of the above-mentioned terminal screen provided according to that above embodiment of the present invention controls system
System, correspondingly, the embodiment of the invention also provides a kind of brightness control methods of above-mentioned terminal screen, as shown in figure 9, can wrap
Include following steps:
Step 901, determine terminal screen photovoltaic cell layer output power；
Step 902, according to determining output power, determine ambient light intensity；
Step 903, according to determining ambient light intensity, the brightness of controlling terminal screen.
Wherein, step 901, determine terminal screen photovoltaic cell layer output power, be specifically as follows:
Determine that the visible light in environment light is converted to output power caused by electric energy by photovoltaic cell layer.
In one particular embodiment of the present invention, determine that the visible light in environment light is converted to electric energy by photovoltaic cell layer
Generated output power, can specifically include:
Electric energy based on photovoltaic cell layer output is end cell charging；
Sample charging current when end cell charging；
According to charging current, determine that the visible light in environment light is converted to output work caused by electric energy by photovoltaic cell layer
Rate.
Further, charging current when being charged according to end cell determines that photovoltaic cell layer will be visible in environment light
Light is converted to output power caused by electric energy, may include:
When environment light is natural light, determine that photovoltaic cell layer is converted to the visible light in environment light caused by electric energy
Output power are as follows: (the 1- η %) of the gross output of photovoltaic cell layer；
When environment light is illumination light, determine that photovoltaic cell layer is converted to the visible light in environment light caused by electric energy
Output power are as follows: the gross output of photovoltaic cell layer；
Wherein, the gross output of photovoltaic cell layer is determined according to the voltage of charging current and end cell；η % is to work as ring
When border light is natural light, the black light in environment light is converted to output power caused by electric energy in photovoltaic by photovoltaic cell layer
Proportion in the gross output of battery layers.
Wherein, black light can be, but not limited to include infrared light.
Preferably, sample end cell charging when charging current when, specifically obtain characterization charging current table
Levy voltage；
Specifically it can determine whether environment light is natural light in the following way:
When above-mentioned characterization voltage is greater than preset value, determine that environment light is natural light；When above-mentioned characterization voltage is no more than pre-
If when value, determining that environment light is illumination light.
Control method provided in an embodiment of the present invention can be applied to Fig. 1, Fig. 2 or Fig. 3 it is any shown in terminal screen, respectively
Step can specifically refer to the specific descriptions of aforementioned brightness control system embodiment, and this will not be detailed here.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device of specific function in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
Specific function in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
In a box or multiple boxes the step of specific function.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, those skilled in the art can carry out various modification and variations without departing from this hair to the embodiment of the present invention
The spirit and scope of bright embodiment.In this way, if these modifications and variations of the embodiment of the present invention belong to the claims in the present invention
And its within the scope of equivalent technologies, then the present invention is also intended to include these modifications and variations.
Claims (11)
1. a kind of brightness control system of terminal screen, which is characterized in that the terminal screen from top to bottom successively includes protection
Layer, photovoltaic cell layer and display layer, in which: the protective layer, for protecting the photovoltaic cell layer and the display layer；It is described
Photovoltaic cell layer, for converting light energy into power output；The display layer is used for display terminal data information；The brightness
Control system includes:
Determining module, the output power of the photovoltaic cell layer for determining the terminal screen, when environment light is natural light, really
Visible light in environment light is converted to output power caused by electric energy by the fixed photovoltaic cell layer are as follows: the photovoltaic cell layer
Gross output (1- η %)；When environment light is illumination light, determine the photovoltaic cell layer by the visible light in environment light
Be converted to output power caused by electric energy are as follows: the gross output of the photovoltaic cell layer；According to determining output power, really
Determine ambient light intensity；
Wherein, the gross output of the photovoltaic cell layer is determined according to the voltage of charging current and end cell；η % is to work as ring
When border light is natural light, the black light in environment light is converted to output power caused by electric energy and existed by the photovoltaic cell layer
Proportion in the gross output of the photovoltaic cell layer；
Control module, for controlling the brightness of the terminal screen according to determining ambient light intensity.
2. brightness control system as described in claim 1, which is characterized in that further include:
Charging module, the electric energy for being exported based on the photovoltaic cell layer are end cell charging；
Sampling module, for sampling charging current when end cell charging；
The determining module is specifically used for determining that the photovoltaic cell layer will be visible in environment light according to the charging current
Light is converted to output power caused by electric energy.
3. brightness control system as claimed in claim 2, which is characterized in that the sampling module is specifically used for output characterization
The characterization voltage of the charging current；
The determining module is also used to when the characterization voltage is greater than preset value, determines that environment light is natural light；When the table
When levying voltage no more than preset value, determine that environment light is illumination light.
4. brightness control system as claimed any one in claims 1 to 3, which is characterized in that the black light includes red
Outer light.
5. a kind of brightness control method of terminal screen, which is characterized in that the terminal screen from top to bottom successively includes protection
Layer, photovoltaic cell layer and display layer, in which: the protective layer, for protecting the photovoltaic cell layer and the display layer；It is described
Photovoltaic cell layer, for converting light energy into power output；The display layer is used for display terminal data information；The brightness
Control method includes:
The output power for determining the photovoltaic cell layer of the terminal screen determines the photovoltaic electric when environment light is natural light
Visible light in environment light is converted to output power caused by electric energy by pond layer are as follows: the gross output of the photovoltaic cell layer
(1- η %)；When environment light is illumination light, determine that the visible light in environment light is converted to electric energy institute by the photovoltaic cell layer
The output power of generation are as follows: the gross output of the photovoltaic cell layer；
Wherein, the gross output of the photovoltaic cell layer is determined according to the voltage of charging current and end cell；η % is to work as ring
When border light is natural light, the black light in environment light is converted to output power caused by electric energy and existed by the photovoltaic cell layer
Proportion in the gross output of the photovoltaic cell layer；
According to determining output power, ambient light intensity is determined；
According to determining ambient light intensity, the brightness of the terminal screen is controlled.
6. brightness control method as claimed in claim 5, which is characterized in that determine that the photovoltaic cell layer will be in environment light
Visible light is converted to output power caused by electric energy, specifically includes:
Electric energy based on photovoltaic cell layer output is end cell charging；
Sample charging current when end cell charging；
According to the charging current, it is defeated caused by electric energy to determine that the photovoltaic cell layer is converted to the visible light in environment light
Power out.
7. brightness control method as claimed in claim 6, which is characterized in that the charging when sampling end cell charging
When electric current, the characterization voltage for characterizing the charging current is specifically obtained；
Specifically determine whether environment light is natural light in the following way:
When the characterization voltage is greater than preset value, determine that environment light is natural light；When the characterization voltage is not more than preset value
When, determine that environment light is illumination light.
8. the brightness control method as described in any one of claim 5 to 7, which is characterized in that the black light includes red
Outer light.
9. a kind of brightness control system of terminal screen, which is characterized in that the terminal screen from top to bottom successively includes protection
Layer, photovoltaic cell layer and display layer, in which: the protective layer, for protecting the photovoltaic cell layer and the display layer；It is described
Photovoltaic cell layer, for converting light energy into power output；The display layer is used for display terminal data information；The brightness
Control system includes:
Processor, for determining that the photovoltaic cell layer is converted to the visible light in environment light when environment light is natural light
Output power caused by electric energy are as follows: (the 1- η %) of the gross output of the photovoltaic cell layer；When environment light is illumination light
When, determine that the visible light in environment light is converted to output power caused by electric energy by the photovoltaic cell layer are as follows: the photovoltaic
The gross output of battery layers；Wherein, the gross output of the photovoltaic cell layer is according to the electricity of charging current and end cell
Pressure determines；η % is when environment light is natural light, and the black light in environment light is converted to electric energy institute by the photovoltaic cell layer
The output power of generation proportion in the gross output of the photovoltaic cell layer；According to determining output power, determine
Ambient light intensity；And according to determining ambient light intensity, control the brightness of the terminal screen.
10. brightness control system as claimed in claim 9, which is characterized in that further include:
Charger, the electric energy for being exported based on the photovoltaic cell layer are end cell charging；
The processor is also used to sample charging current when end cell charging；
The processor is specifically used for determining the photovoltaic cell layer by the visible light in environment light according to the charging current
Be converted to output power caused by electric energy.
11. brightness control system as claimed in claim 10, which is characterized in that the processor is specifically used for output characterization
The characterization voltage of the charging current；
The processor is also used to when the characterization voltage is greater than preset value, determines that environment light is natural light；When the characterization
When voltage is not more than preset value, determine that environment light is illumination light.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510737347.9A CN106652971B (en) | 2015-10-30 | 2015-10-30 | A kind of terminal screen and brightness control system, brightness control method |
| PCT/CN2016/102769 WO2017071527A1 (en) | 2015-10-30 | 2016-10-20 | Terminal screen and brightness control system and brightness control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510737347.9A CN106652971B (en) | 2015-10-30 | 2015-10-30 | A kind of terminal screen and brightness control system, brightness control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106652971A CN106652971A (en) | 2017-05-10 |
| CN106652971B true CN106652971B (en) | 2019-08-20 |
Family
ID=58631311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510737347.9A Active CN106652971B (en) | 2015-10-30 | 2015-10-30 | A kind of terminal screen and brightness control system, brightness control method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106652971B (en) |
| WO (1) | WO2017071527A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019028219A (en) * | 2017-07-28 | 2019-02-21 | 京セラ株式会社 | Electronic apparatus and manufacturing method |
| CN110221724A (en) * | 2019-06-03 | 2019-09-10 | 出门问问信息科技有限公司 | The manufacturing method of display device, wearable electronic and display device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101025881A (en) * | 2006-02-24 | 2007-08-29 | 佛山市顺德区顺达电脑厂有限公司 | Personized automatic backlight adjusting system and its method |
| KR101521934B1 (en) * | 2009-03-19 | 2015-05-28 | 엘지전자 주식회사 | Portable terminal and display controlliing method of the same |
| JP5010692B2 (en) * | 2010-01-29 | 2012-08-29 | 株式会社東芝 | Information processing apparatus and battery control method |
| US20130063493A1 (en) * | 2011-09-14 | 2013-03-14 | Htc Corporation | Devices and Methods Involving Display Interaction Using Photovoltaic Arrays |
| TWI474101B (en) * | 2013-07-24 | 2015-02-21 | Coretronic Corp | Portable display device |
| CN104183216A (en) * | 2014-08-15 | 2014-12-03 | 青岛海信电器股份有限公司 | Method and device for controlling brightness of display screen of displayer |
-
2015
- 2015-10-30 CN CN201510737347.9A patent/CN106652971B/en active Active
-
2016
- 2016-10-20 WO PCT/CN2016/102769 patent/WO2017071527A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017071527A1 (en) | 2017-05-04 |
| CN106652971A (en) | 2017-05-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105575334B (en) | A kind of screen luminance adjustment method and user terminal | |
| CN106303280A (en) | One is taken pictures light compensation method, device and terminal | |
| CN102868821A (en) | Screen activating and unlocking method for mobile terminal | |
| CN105007429A (en) | Method and system for elimination scintillation, and mobile terminal | |
| CN204946166U (en) | Human body induction energy saving automatic vending machine | |
| CN107743203A (en) | A kind of parameter regulation means, terminal and computer-readable recording medium | |
| CN104344888A (en) | Semiconductor integrated circuit for optical sensor | |
| CN106652971B (en) | A kind of terminal screen and brightness control system, brightness control method | |
| CN103226438A (en) | Method and system for desktop subject display mode based on light intensity adjustable panel terminal | |
| CN106935667A (en) | Photoelectric sensor, display panel and display device | |
| CN105895057B (en) | A kind of backlight adjusting method, device and terminal device | |
| CN103002097A (en) | Key induction device, key induction method and mobile terminal | |
| CN109059987A (en) | A kind of method, device and mobile terminal for calibrating optical sensor | |
| CN105872264A (en) | Backlight brightness adjusting method and mobile terminal | |
| CN205807210U (en) | A kind of desk lamp of automatic regulating lightness | |
| CN105845102A (en) | Environment-based screen brightness adjusting circuit and display screen | |
| CN109561291A (en) | Color temperature compensating method, device, storage medium and mobile terminal | |
| JP6209699B1 (en) | Electronic device, program, and control method | |
| US20210352203A1 (en) | Detection circuit, device and method for detecting light source flicker, and photoelectric detection device | |
| US20150044532A1 (en) | Battery with visual indicator of power level and electronic device | |
| CN103796395A (en) | Self-adaptive constant-power LED lamp and control method thereof | |
| CN201008416Y (en) | Container capable of detecting ultraviolet ray index exponent | |
| CN106375578B (en) | Method and device for lightening screen of mobile terminal | |
| CN102290843B (en) | Method for automatically adapting charger to portable equipment | |
| TWI525508B (en) | Photo sensing touch device and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 523808 Southern Factory Building (Phase I) Project B2 Production Plant-5, New Town Avenue, Songshan Lake High-tech Industrial Development Zone, Dongguan City, Guangdong Province Applicant after: Huawei Device Co., Ltd. Address before: 523808 Southern Factory Building (Phase I) Project B2 Production Plant-5, New Town Avenue, Songshan Lake High-tech Industrial Development Zone, Dongguan City, Guangdong Province Applicant before: HUAWEI terminal (Dongguan) Co., Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |