CN106652971A - Terminal screen and brightness control system and brightness control method - Google Patents
Terminal screen and brightness control system and brightness control method Download PDFInfo
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- CN106652971A CN106652971A CN201510737347.9A CN201510737347A CN106652971A CN 106652971 A CN106652971 A CN 106652971A CN 201510737347 A CN201510737347 A CN 201510737347A CN 106652971 A CN106652971 A CN 106652971A
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- photovoltaic cell
- cell layer
- ambient light
- layer
- light
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/10—Intensity circuits
Abstract
The invention provides a terminal screen and brightness control system and a brightness control method which are capable of increasing the detection accuracy for ambient light intensity so as to further increase the control accuracy over the terminal screen brightness. The terminal screen consists of a protection layer, a photovoltaic cell layer and a display layer from the top to the bottom successively wherein the protection layer is used to protect the photovoltaic cell layer and the display layer, the photovoltaic cell layer is used to convert light energy into electric energy for output and the display layer is used to display the terminal data information.
Description
Technical field
The present invention relates to field of terminal technology, more particularly to a kind of terminal screen and brightness control system, brightness
Control method.
Background technology
In the various terminals with screen, such as in wearable device, mobile phone, panel computer, terminal screen
For big power consumption part.In order to reduce the power consumption of terminal screen, it usually needs according to ambient light intensity come real
When control terminal screen brightness.At present a kind of terminal screen of main flow from top to bottom mainly include protective layer and
Display layer, wherein：Protective layer, for protecting display layer；Display layer, for display terminal data message.
The brightness of control terminal screen is substantially the brightness of the display layer of control terminal screen.
In order to realize according to ambient light intensity come the brightness of real-time control terminal screen, one kind of the prior art
Scheme is to place an ambient light sensor after terminal screen to detect ambient light intensity, is passed according to ambient light
The brightness of the testing result control terminal screen of sensor.
However, scheme of the prior art, ambient light need through terminal screen protective layer and display layer
Can be irradiated on ambient light sensor, there is larger transmission path loss, and on environmental sensor
The display layer of side is luminous also to affect ambient light sensor, so as to the environment for causing ambient light sensor to detect
Luminous intensity is larger with the ambient light intensity deviation of reality；Also, during the use of terminal, work as ambient light
When by chance being separated by finger or other objects to the transmission path of ambient light sensor, ambient light biography is also resulted in
The ambient light intensity that sensor is detected is larger with the ambient light intensity deviation of reality.Obviously, it is of the prior art
Scheme cannot ensure the accuracy of detection of ambient light intensity, and then cannot also ensure the control essence of screen luminance of terminal
Degree.
The content of the invention
The embodiment of the present invention provides a kind of terminal screen and brightness control system, brightness control method, Neng Gouti
The accuracy of detection of high ambient light intensity, and then improve the control accuracy of screen luminance of terminal.
A kind of first aspect, there is provided terminal screen, from top to bottom successively include protective layer, photovoltaic cell layer and
Display layer, wherein：
The protective layer, for protecting the photovoltaic cell layer and the display layer；
The photovoltaic cell layer, for converting light energy into electric energy output；
The display layer, for display terminal data message.
With reference in a first aspect, in the first possible implementation, also including touch control layer, the touch control layer
Between the protective layer and the photovoltaic cell layer, or positioned at the photovoltaic cell layer and the display
Between layer.
With reference in a first aspect, or first aspect the first possible implementation, it is possible at second
In implementation, the protective layer is specially glassivation.
With reference in a first aspect, the first possible implementation of first aspect, or the second of first aspect
Possible implementation is planted, in the third possible implementation, the photovoltaic cell layer is specially organic
Compound photovoltaic cell layer.
A kind of second aspect, there is provided brightness control system of terminal screen, the terminal screen from top to bottom according to
It is secondary including protective layer, photovoltaic cell layer and display layer, wherein：The protective layer, for protecting the photovoltaic
Battery layers and the display layer；The photovoltaic cell layer, for converting light energy into electric energy output；It is described aobvious
Show layer, for display terminal data message；The brightness control system includes：
Determining module, for determining the power output of the photovoltaic cell layer of the terminal screen；According to what is determined
Power output, determines ambient light intensity；
Control module, for according to the ambient light intensity for determining, controlling the brightness of the terminal screen.
With reference to second aspect, in the first possible implementation, the determining module, specifically for true
Visible ray in ambient light is converted to the fixed photovoltaic cell layer power output produced by electric energy.
With reference to the first possible implementation of second aspect, in second possible implementation, also
Including：
Charging module, is end cell charging for the electric energy based on photovoltaic cell layer output；
Sampling module, charging current when charging for the end cell of sampling；
The determining module, specifically for according to the charging current, determining the photovoltaic cell layer by environment
Visible ray in light is converted to the power output produced by electric energy.
With reference to second possible implementation of second aspect, in the third possible implementation, institute
Determining module is stated, specifically for when ambient light is natural light, determining the photovoltaic cell layer by ambient light
The power output that is converted to produced by electric energy of visible ray be：The gross output of the photovoltaic cell layer
(1- η %)；When ambient light is illumination light, determine that the photovoltaic cell layer turns the visible ray in ambient light
Being changed to the power output produced by electric energy is：The gross output of the photovoltaic cell layer；
Wherein, the gross output of the photovoltaic cell layer is according to the charging current and the end cell
Voltage determines；η % are that the photovoltaic cell layer will be invisible in ambient light when ambient light is natural light
Light is converted to power output produced by the electric energy proportion in the gross output of the photovoltaic cell layer.
With reference to the third possible implementation of second aspect, in the 4th kind of possible implementation, institute
Black light is stated including infrared light.
With reference to the third possible implementation of second aspect, or with reference to the 4th kind of possibility of second aspect
Implementation, in the 5th kind of possible implementation, the sampling module, specifically for output characterize
The sign voltage of the charging current；
The determining module, is additionally operable to, when the sign voltage is more than preset value, determine that ambient light is nature
Light；When the sign voltage is not more than preset value, determine that ambient light is illumination light.
A kind of third aspect, there is provided brightness control method of terminal screen, the terminal screen from top to bottom according to
It is secondary including protective layer, photovoltaic cell layer and display layer, wherein：The protective layer, for protecting the photovoltaic
Battery layers and the display layer；The photovoltaic cell layer, for converting light energy into electric energy output；It is described aobvious
Show layer, for display terminal data message；The brightness control method includes：
Determine the power output of the photovoltaic cell layer of the terminal screen；
According to the power output for determining, ambient light intensity is determined；
According to the ambient light intensity for determining, the brightness of the terminal screen is controlled.
With reference to the third aspect, in the first possible implementation, the photovoltaic electric of the terminal screen is determined
The power output of pond layer, specially：
Determine that the visible ray in ambient light is converted to the photovoltaic cell layer power output produced by electric energy.
With reference to the first possible implementation of the third aspect, in second possible implementation, really
Visible ray in ambient light is converted to the fixed photovoltaic cell layer power output produced by electric energy, concrete bag
Include：
The electric energy exported based on the photovoltaic cell layer is end cell charging；
The charging current when end cell of sampling charges；
According to the charging current, determine that the visible ray in ambient light is converted to electric energy by the photovoltaic cell layer
Produced power output.
With reference to second possible implementation of the third aspect, in the third possible implementation, root
Charging current when charging according to the end cell, determines the photovoltaic cell layer by the visible ray in ambient light
The power output produced by electric energy is converted to, including：
When ambient light is natural light, determine that the visible ray in ambient light is converted to electricity by the photovoltaic cell layer
Power output produced by energy is：(the 1- η %) of the gross output of the photovoltaic cell layer；
When ambient light is illumination light, determine that the visible ray in ambient light is converted to electricity by the photovoltaic cell layer
Power output produced by energy is：The gross output of the photovoltaic cell layer；
Wherein, the gross output of the photovoltaic cell layer is according to the charging current and the end cell
Voltage determines；η % are that the photovoltaic cell layer will be invisible in ambient light when ambient light is natural light
Light is converted to power output produced by the electric energy proportion in the gross output of the photovoltaic cell layer.
With reference to the third possible implementation of the third aspect, in the 4th kind of possible implementation, institute
Black light is stated including infrared light.
With reference to the third possible implementation of the third aspect, or with reference to the 4th kind of possibility of the third aspect
Implementation, the charging in the 5th kind of possible implementation, when the end cell of sampling charges
During electric current, specifically obtain characterizing the sign voltage of the charging current；
It is concrete to determine whether ambient light is natural light in the following way：
When the sign voltage is more than preset value, determine that ambient light is natural light；Voltage is characterized when described not
During more than preset value, determine that ambient light is illumination light.
A kind of fourth aspect, there is provided brightness control system of terminal screen, the terminal screen from top to bottom according to
It is secondary including protective layer, photovoltaic cell layer and display layer, wherein：The protective layer, for protecting the photovoltaic
Battery layers and the display layer；The photovoltaic cell layer, for converting light energy into electric energy output；It is described aobvious
Show layer, for display terminal data message；The brightness control system includes：
Processor, for determining the power output of the photovoltaic cell layer of the terminal screen；It is defeated according to what is determined
Go out power, determine ambient light intensity；And according to the ambient light intensity for determining, control the terminal screen
Brightness.
With reference to the first possible implementation of fourth aspect, in second possible implementation, institute
Processor is stated, is produced specifically for determining that the visible ray in ambient light is converted to electric energy by the photovoltaic cell layer
Raw power output.
With reference to second possible implementation of fourth aspect, in the third possible implementation, also
Including：
Charger, is end cell charging for the electric energy based on photovoltaic cell layer output；
The processor, the charging current when end cell that is additionally operable to sample charges；
The processor, specifically for according to the charging current, determining the photovoltaic cell layer by ambient light
In visible ray be converted to power output produced by electric energy.
With reference to the third possible implementation of fourth aspect, in the 4th kind of possible implementation, institute
Processor is stated, specifically for when ambient light is natural light, determining the photovoltaic cell layer by ambient light
Visible ray is converted to the power output produced by electric energy：(the 1- of the gross output of the photovoltaic cell layer
η %)；When ambient light is illumination light, determine that the photovoltaic cell layer changes the visible ray in ambient light
Power output produced by electric energy is：The gross output of the photovoltaic cell layer；Wherein, the photovoltaic
The gross output of battery layers determines according to the voltage of the charging current and the end cell；η % are to work as
When ambient light is natural light, the photovoltaic cell layer is converted to the black light in ambient light produced by electric energy
Power output in the gross output of the photovoltaic cell layer proportion.
With reference to the 4th kind of possible implementation of fourth aspect, in the 5th kind of possible implementation, institute
Processor is stated, specifically for output the sign voltage of the charging current is characterized；
The processor, is additionally operable to, when the sign voltage is more than preset value, determine that ambient light is natural light；
When the sign voltage is not more than preset value, determine that ambient light is illumination light.
The brilliance control system of the terminal screen provided according to the terminal screen that first aspect is provided, second aspect
System, the brightness control method of the terminal screen that the third aspect is provided, or the terminal screen that fourth aspect is provided
Brightness control system, terminal screen includes protective layer, photovoltaic cell layer and display layer, wherein photovoltaic cell
, for converting light energy into electric energy output, ambient light intensity is stronger, and the power output of photovoltaic cell layer is bigger for layer,
Therefore ambient light intensity can be determined according to the power output of photovoltaic cell layer, the brightness to terminal screen is entered
Row control.Compared to prior art, ambient lighting is mapped to the transmission path of the photovoltaic cell layer of terminal screen and damages
Consumption is less, and, display layer is located at photovoltaic cell layer lower section, and display layer is luminous not to interfere with photovoltaic cell layer；
Also, photovoltaic cell layer area is larger, it is difficult to be blocked by finger or other objects；Therefore compared to existing skill
Art, it is more accurate according to the ambient light intensity that the power output of photovoltaic cell layer is determined, it is bright to terminal screen
The control accuracy of degree is also higher.
Description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and constitutes a part for specification, with this
Bright embodiment is used to explain the present invention together, is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is one of structural representation of terminal screen provided in an embodiment of the present invention；
Fig. 2 is the two of the structural representation of terminal screen provided in an embodiment of the present invention；
Fig. 3 is the three of the structural representation of terminal screen provided in an embodiment of the present invention；
Fig. 4 is one of structural representation of brightness control system of terminal screen provided in an embodiment of the present invention；
Fig. 5 is the two of the structural representation of the brightness control system of terminal screen provided in an embodiment of the present invention；
Fig. 6 be terminal screen provided in an embodiment of the present invention brightness control system in the structure of sampling module show
It is intended to；
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 three of the structural representation of the brightness control system of terminal screen provided in an embodiment of the present invention；
Fig. 9 is the schematic flow sheet of the brightness control method of terminal screen provided in an embodiment of the present invention.
Specific embodiment
For the control accuracy for providing the accuracy of detection for improving ambient light intensity and then improve screen luminance of terminal
Implementation, embodiments provide a kind of terminal screen and brightness control system, brilliance control side
The preferred embodiments of the present invention are illustrated by method below in conjunction with Figure of description, it will be appreciated that this place
The preferred embodiment of description is merely to illustrate and explains the present invention, is not intended to limit the present invention.And not
In the case of conflict, the feature in embodiment and embodiment in the application can be mutually combined.
The embodiment of the present invention provides a kind of terminal screen, as shown in figure 1, from top to bottom can include successively protecting
Sheath 101, photovoltaic cell layer 102 and display layer 103, wherein：
Protective layer 101, for protecting photovoltaic cell layer 102 and display layer 103；
Photovoltaic cell layer 102, for converting light energy into electric energy output；
Display layer 103, for display terminal data message.
Terminal screen i.e. provided in an embodiment of the present invention can include three-decker：
Ground floor is protective layer 101, can protect other layers of terminal screen；
The second layer is photovoltaic cell layer 102, and the intensity of ambient light is stronger, the output work of photovoltaic cell layer 102
Rate is bigger；I.e. photovoltaic cell layer 102 has power output and the positively related characteristic of ambient light intensity, therefore can
Using this characteristic, ambient light intensity is determined according to the power output of photovoltaic cell layer 102, to terminal
The brightness of screen is controlled；
Third layer is display layer 103, and the brightness of control terminal screen substantially as controls the bright of display layer 103
Degree.
Because display layer 103 is located at the orlop of terminal screen, therefore, protective layer 101 and photovoltaic cell layer
102 light transmittance should be greater than 0, make user visible to terminal data information that display layer 103 shows.This
Inventive embodiments do not limit the concrete light transmittance of protective 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 present invention, protective layer 101 can also be sapphire protective layer, resistance to
Grit is higher.
In other specific embodiments of the present invention, protective layer 101 can also be the protective layer of other materials,
The embodiment of the present invention is not specifically limited to this.
In one particular embodiment of the present invention, photovoltaic cell layer 102 can be organic compound photovoltaic electric
Pond layer, it is easy to transparent effect is presented.
In other specific embodiments of the present invention, photovoltaic cell layer 102 can also be the photovoltaic of other species
Battery layers, the embodiment of the present invention is not specifically limited to this.
Because the end product of current main flow is touch screen terminal, therefore, terminal provided in an embodiment of the present invention
Screen can also include touch control layer 104, user's operation on a terminal screen such as be clicked on, conversion of sliding
For terminal control signal, the touch controllable function of terminal is realized.I.e. now, end panel provided in an embodiment of the present invention
Curtain can include four-layer structure.
In one particular embodiment of the present invention, the touch control layer 104 can be with as shown in Fig. 2 be located at protection
Between layer 101 and photovoltaic cell layer 102；I.e. now, the ground floor of terminal screen be protective layer 101, the
It is display layer 103 for photovoltaic cell layer 102, the 4th layer that two layers is touch control layer 104, third layer.
Using the structure of the terminal screen shown in Fig. 2, the touch-control sensitivity of terminal is higher.
In another specific embodiment of the present invention, the touch control layer 104 can also be as shown in figure 3, be located at
Between photovoltaic cell layer 102 and display layer 103；I.e. now, the ground floor of terminal screen be protective layer 101,
It is display layer 103 for touch control layer 104, the 4th layer that the second layer is photovoltaic cell layer 102, third layer.
Compared to the structure of the terminal screen shown in Fig. 2, using the structure of the terminal screen shown in Fig. 3, ring
The transmission path that border illumination is mapped to the photovoltaic cell layer of terminal screen is shorter, therefore is more beneficial for terminal screen
Brilliance control.
Terminal screen structure i.e. shown in Fig. 1 can be applied in various non-touch screen terminals, Fig. 2 or Fig. 3
Shown terminal screen structure can be applied in various touch screen terminals.Described terminal can be, but not limited to
For wearable device, mobile phone, panel computer etc..
During actual enforcement, the terminal screen of employing can be specifically determined according to the demand of practical application scene
Version.
Obviously, compared to prior art, using terminal screen provided in an embodiment of the present invention, ambient light irradiation
Transmission path loss to the photovoltaic cell layer of terminal screen is less, and, display layer is located at photovoltaic cell layer
Lower section, display layer is luminous not to interfere with photovoltaic cell layer；Also, photovoltaic cell layer area is larger, be difficult by
Finger or other objects are blocked.Therefore compared to prior art, determined according to the power output of photovoltaic cell layer
The ambient light intensity for going out is more accurate, also higher to the control accuracy of screen luminance of terminal.
The embodiment of the present invention additionally provides a kind of brightness control system of above-mentioned terminal screen, as shown in figure 4,
Can include：
Determining module 401, for determining the power output of the photovoltaic cell layer of terminal screen；According to what is determined
Power output, determines ambient light intensity；
Control module 402, for the ambient light intensity determined according to determining module 401, control terminal screen
Brightness.
In prior art, every kind of photovoltaic cell all has the relation curve of power output and ambient light intensity, i.e.,
Power output and ambient light intensity have corresponding relation.Accordingly, it is determined that module 401 is determining photovoltaic cell
After the power output of layer, ambient light intensity can be determined according to the corresponding relation.
In one particular embodiment of the present invention, determining module 401, can be specifically for determining end panel
The gross output of the photovoltaic cell layer of curtain；According to the gross output for determining, ambient light intensity is determined.
Generally, or ambient light is illumination light, or being natural light.
The light of illumination light is that human eye is visible substantially, i.e., when ambient light is illumination light, photovoltaic cell layer
Gross output it is all it will be seen that light is converted to power output produced by electric energy.
And the light of natural light, a part is that human eye is visible, and another part is that human eye is sightless；Work as ring
When border light is natural light, the gross output of photovoltaic cell layer includes two parts, and a part is it will be seen that light turns
The power output being changed to produced by electric energy, another part is that black light is converted to the output produced by electric energy
Power.
Therefore, in order that brightness control scheme is more reasonable, in another specific embodiment of the present invention,
Determining module 401, can be specifically for determining that the visible ray in ambient light is converted to electric energy by photovoltaic cell layer
Produced power output, using the corresponding power output of visible ray ambient light intensity is determined, is now determined
The ambient light intensity for going out is substantially visual intensity, and then the brightness of control terminal screen, can avoid nature
Screen luminance of terminal is too high under luminous environment, makes user obtain more preferable experience.
It should be noted that the visible human eye that refers both to occurred in the embodiment of the present invention is visible, the embodiment of the present invention
To refer both to human eye invisible for middle appearance invisible.
Further, control module 402, specifically for the ambient light intensity determined according to determining module 401,
The display layer brightness of control terminal screen；The ambient light intensity that determining module 401 determines is stronger, control module
The brightness of 402 control terminal screens is higher, i.e. the display layer brightness of control terminal screen is higher；Determining module
401 ambient light intensities for determining are weaker, and the brightness of the control terminal screen of control module 402 is lower, that is, control
The display layer brightness of terminal screen is lower.
During actual enforcement, above-mentioned determining module 401 and control module 402 can adopt two processor chips
Realize, it would however also be possible to employ a processor chips are realized.
In brightness control system provided in an embodiment of the present invention, specifically end panel can be determined using various ways
The gross output of the photovoltaic cell layer of curtain, or determine that photovoltaic cell layer changes the visible ray in ambient light
Power output produced by electric energy.
Just to determine photovoltaic cell layer the visible ray in ambient light is converted to output produced by electric energy below
As a example by power, the implementing for brightness control system of terminal screen provided in an embodiment of the present invention is lifted
Example explanation.
As shown in figure 5, the brightness control system of terminal screen provided in an embodiment of the present invention specifically can include：
Charging module 501, is end cell charging for the electric energy based on photovoltaic cell layer output；
Sampling module 502, charging current when charging for end cell of sampling；
Determining module 503, for according to charging current, determining photovoltaic cell layer by the visible ray in ambient light
Be converted to the power output produced by electric energy；According to the power output for determining, ambient light intensity is determined；
Control module 504, for the ambient light intensity determined according to determining module 401, control terminal screen
Brightness.
Wherein, charging module 501 is substantially a power-supply management system, the electric energy that photovoltaic cell layer is exported
Switch to the charging current charged to end cell.
Sampling module 502, specifically can be sampled by sampling resistor R to the charging current, export table
Levy the sign voltage V of the charging current.Sampling module 502 can specifically adopt the circuit shown in Fig. 6
Realize, it would however also be possible to employ other current sampling circuits of the prior art are realized.
Determining module 503, can determine and fill according to the size of the sign voltage of the output of sampling module 502
The size of electric current.When sampling module 502 adopts the circuit shown in Fig. 6 as concrete implementation circuit,
Charging current I can be determined based on following formula：
I=(V/n)/R；
Wherein, n is the multiplication factor of amplifier in Fig. 6.
Further, when ambient light is natural light, determining module 503 determines photovoltaic cell layer by ambient light
In visible ray be converted to power output P produced by electric energy1For：The gross output of photovoltaic cell layer
(1- η %)；Wherein, the gross output of photovoltaic cell layer is according to charging current I and the voltage of end cell
VbatIt is determined that；η % are that photovoltaic cell layer turns the black light in ambient light when ambient light is natural light
It is changed to the proportion in the gross output of photovoltaic cell layer of the power output produced by electric energy；I.e. now：
P1=I × Vbat× (1- η %)；
When ambient light is illumination light, determining module 503 determines photovoltaic cell layer by the visible ray in ambient light
Be converted to power output P produced by electric energy2For：The gross output of photovoltaic cell layer；I.e. now：
P2=I × Vbat。
When ambient light is natural light, black light mainly includes infrared light and ultraviolet light, ultraviolet light institute accounting
Example is seldom, it is possible to ignore.I.e. now, above-mentioned η % are specifically as follows when ambient light is natural light
When, the infrared light in ambient light is converted to power output produced by electric energy in photovoltaic cell by photovoltaic cell layer
Proportion in the gross output of layer.
Further, determining module 503, can be also used for the sign voltage according to the output of sampling module 502
Ambient light is determined for natural light or illumination light；Specifically, when the sign voltage of the output of sampling module 502 is big
When preset value, determine that ambient light is natural light；When the sign voltage of the output of sampling module 502 is not more than in advance
If during value, determining that ambient light is illumination light, i.e., now ambient light is light.
Determination principle following to above-mentioned preset value and how determining is illustrated.
Illumination (unit lux (the lux)) difference of illumination light and natural light is than larger.For example, 40w
Lighting bulb illumination be 50lux, the illuminating lamp of house illumination be 200lux, the illuminating lamp of office
Illumination be 500lux, the illuminating lamp of supermarket illumination be 1000lux；And the illumination of the natural light of rainy day is
10000lux, the illumination of the natural light at cloudy day are 20000lux, the illumination of the natural light of broken sky is
50000lux, the illumination of the natural light of fine day are 100000lux.
From it is above-mentioned it is various in the case of illuminating lamp and natural light illumination data, the illumination of illumination light is general
Less than 1000lux, the illumination of natural light is typically in more than 10000lux.Therefore, it can first set illumination light
With the illumination line of demarcation of natural light, i.e., between the maximal illumination and the minimal illumination of natural light of conventional illumination light
Value (according to above-mentioned illumination data, as in 1000lux and 10000lux values) as illumination line of demarcation,
Then by the use of the corresponding voltage in illumination line of demarcation as the foundation for determining preset value.For example, this can be shone
The corresponding voltage in degree line of demarcation is used as preset value.
The photograph of the photovoltaic material that the corresponding voltage in above-mentioned illumination line of demarcation is specifically used using photovoltaic cell layer
Degree-voltage curve is determining.Illumination-voltage curve may be linear, it is also possible to for nonlinear, but
With when illumination increases, corresponding voltage also increases, when illumination reduces, what corresponding voltage also reduced
Characteristic, wherein, each photovoltaic material one illumination-voltage curve of correspondence, different photovoltaic material correspondences
Illumination-voltage curve typically differ.
For example：Hypothesis takes 5000lux as illumination light and the line of demarcation of natural light, what photovoltaic cell layer was adopted
Photovoltaic material A, if on the illumination-voltage curve of photovoltaic material A, the corresponding voltages of 5000lux are 0.8V,
And it is preset value to take 0.8V, then when the sign voltage of the output of sampling module 502 is less than 0.8V, it is determined that
Ambient light is illumination light；When the sign voltage of the output of sampling module 502 is more than 0.8V, ambient light is determined
For natural light.
In embodiments of the present invention, above-mentioned determining module 503 and control module 504, can adopt one
MCU (Micro Controller Unit, micro-control unit) is realized, using the analog-digital converter in MCU
The sign voltage of the sampling output of sampling module 502, the concrete control flow of MCU can with as shown in fig. 7,
Specifically include following step：
Step 701, judge to characterize voltage V whether more than preset value.
When voltage V is characterized more than preset value, now ambient light is natural light, into step 702；
When sign voltage V is not more than preset value, now ambient light is illumination light, into step 703.
Step 702, based on formula P1=I × Vbat× (1- η %) determines photovoltaic cell layer by ambient light
Visible ray is converted to the power output produced by electric energy, into step 704.
Step 703, based on formula P2=I × VbatDetermine that photovoltaic cell layer changes the visible ray in ambient light
Power output produced by electric energy, into step 704.
Step 704, according to the corresponding relation of power output and ambient light intensity, it is determined that determine power output
Corresponding ambient light intensity.
Step 705, according to determine ambient light intensity control terminal screen display layer brightness.
Additionally, the embodiment of the present invention additionally provides a kind of brightness control system of above-mentioned terminal screen, such as Fig. 8
It is shown, can include：
Processor 81, for determining the power output of the photovoltaic cell layer of the terminal screen；According to what is determined
Power output, determines ambient light intensity；And according to the ambient light intensity for determining, control the terminal screen
Brightness.
Further, the processor, specifically for determining that the photovoltaic cell layer will be visible in ambient light
Light is converted to the power output produced by electric energy.
Further, also include：Charger 82, wherein, processor 81 and charger 82 are total by communication
Line 83 connects；
Charger 82, is end cell charging for the electric energy based on photovoltaic cell layer output；
The processor 81, the charging current when end cell that is additionally operable to sample charges；
The processor 81, specifically for according to the charging current, determining the photovoltaic cell layer by environment
Visible ray in light is converted to the power output produced by electric energy.
Further, the processor, specifically for when ambient light is natural light, determining the photovoltaic electric
Visible ray in ambient light is converted to pond layer the power output produced by electric energy：The photovoltaic cell layer
(the 1- η %) of gross output；When ambient light is illumination light, determine the photovoltaic cell layer by ambient light
In the power output that is converted to produced by electric energy of visible ray be：The gross output of the photovoltaic cell layer；
Wherein, the gross output of the photovoltaic cell layer is according to the charging current and the voltage of the end cell
It is determined that；η % are that the photovoltaic cell layer turns the black light in ambient light when ambient light is natural light
It is changed to the proportion in the gross output of the photovoltaic cell layer of the power output produced by electric energy.
Further, the processor 81, specifically for output the sign electricity of the charging current is characterized
Pressure；
The processor 81, is additionally operable to, when the sign voltage is more than preset value, determine that ambient light is nature
Light；When the sign voltage is not more than preset value, determine that ambient light is illumination light.
It should be noted that processor 81 can be a general central processor (CPU), microprocessor,
ASIC (Application-Specific Integrated Circuit, ASIC), or one or many
The individual integrated circuit for controlling the present invention program program performing.
Control system provided in an embodiment of the present invention can apply to Fig. 1, Fig. 2 or Fig. 3 arbitrary shown end
End screen, it is possible to increase the accuracy of detection of ambient light intensity, and then improve the control accuracy of screen luminance of terminal.
Based on same inventive concept, the brightness control of the above-mentioned terminal screen provided according to the above embodiment of the present invention
System processed, accordingly, the embodiment of the present invention additionally provides a kind of brightness control method of above-mentioned terminal screen,
As shown in figure 9, may include steps of：
Step 901, determine terminal screen photovoltaic cell layer power output；
Step 902, according to determine power output, determine ambient light intensity；
Step 903, according to determine ambient light intensity, the brightness of control terminal screen.
Wherein, step 901, determine terminal screen photovoltaic cell layer power output, be specifically as follows：
Determine that the visible ray in ambient light is converted to photovoltaic cell layer the power output produced by electric energy.
In one particular embodiment of the present invention, determine that photovoltaic cell layer changes the visible ray in ambient light
Power output produced by electric energy, specifically can include：
The electric energy exported based on photovoltaic cell layer is end cell charging；
Charging current when sampling end cell charges；
According to charging current, determine that photovoltaic cell layer is converted to the visible ray in ambient light produced by electric energy
Power output.
Further, charging current when being charged according to end cell, determines photovoltaic cell layer by ambient light
Visible ray be converted to power output produced by electric energy, can include：
When ambient light is natural light, determine that the visible ray in ambient light is converted to electric energy institute by photovoltaic cell layer
The power output of generation is：(the 1- η %) of the gross output of photovoltaic cell layer；
When ambient light is illumination light, determine that the visible ray in ambient light is converted to electric energy institute by photovoltaic cell layer
The power output of generation is：The gross output of photovoltaic cell layer；
Wherein, the gross output of photovoltaic cell layer determines according to the voltage of charging current and end cell；
η % are that the black light in ambient light is converted to electric energy institute by photovoltaic cell layer when ambient light is natural light
The power output of generation proportion in the gross output of photovoltaic cell layer.
Wherein, black light can be, but not limited to include infrared light.
Preferably, sample end cell charge when charging current when, specifically obtain characterize charging current it is big
Little sign voltage；
Specifically can in the following way determine whether ambient light is natural light：
When above-mentioned sign voltage is more than preset value, determine that ambient light is natural light；When above-mentioned sign voltage not
During more than preset value, determine that ambient light is illumination light.
Control method provided in an embodiment of the present invention can apply to the arbitrary shown terminal of Fig. 1, Fig. 2 or Fig. 3
Screen, each step specifically may be referred to the specific descriptions of aforementioned brightness control system embodiment, and here is no longer detailed
State.
Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or meter
Calculation machine program product.Therefore, the present invention can be using complete hardware embodiment, complete software embodiment or knot
Close the form of the embodiment in terms of software and hardware.And, the present invention can be adopted and wherein wrapped at one or more
Computer-usable storage medium containing computer usable program code (including but not limited to magnetic disc store,
CD-ROM, optical memory etc.) on implement computer program form.
The present invention is produced with reference to method according to embodiments of the present invention, equipment (system) and computer program
The flow chart and/or block diagram of product is describing.It should be understood that can by computer program instructions flowchart and
/ or block diagram in each flow process and/or square frame and flow chart and/or the flow process in block diagram and/
Or the combination of square frame.These computer program instructions can be provided to all-purpose computer, special-purpose computer, embedded
The processor of formula processor or other programmable data processing devices is producing a machine so that by calculating
The instruction of the computing device of machine or other programmable data processing devices is produced for realizing in flow chart one
The device of specific function in individual flow process or one square frame of multiple flow processs and/or block diagram or multiple square frames.
These computer program instructions may be alternatively stored in can guide computer or other programmable datas process to set
In the standby computer-readable memory for working in a specific way so that in being stored in the computer-readable memory
Instruction produce and include the manufacture of command device, command device realization is in one flow process or multiple of flow chart
Specific function in one square frame of flow process and/or block diagram or multiple square frames.
These computer program instructions also can be loaded into computer or other programmable data processing devices, made
Obtain and series of operation steps is performed on computer or other programmable devices to produce computer implemented place
Reason, so as to the instruction performed on computer or other programmable devices is provided for realizing in flow chart one
In flow process or one square frame of multiple flow processs and/or block diagram or multiple square frames the step of specific function.
, but those skilled in the art once know base although preferred embodiments of the present invention have been described
This creative concept, then can make other change and modification to these embodiments.So, appended right will
Ask and be intended to be construed to include preferred embodiment and fall into having altered and changing for the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification to the embodiment of the present invention and not take off
From the spirit and scope of the embodiment of the present invention.So, if these modifications of the embodiment of the present invention and modification category
Within the scope of the claims in the present invention and its equivalent technologies, then the present invention be also intended to comprising these change and
Including modification.
Claims (21)
1. a kind of terminal screen, it is characterised in that from top to bottom include protective layer, photovoltaic cell layer successively
And display layer, wherein：
The protective layer, for protecting the photovoltaic cell layer and the display layer；
The photovoltaic cell layer, for converting light energy into electric energy output；
The display layer, for display terminal data message.
2. terminal screen as claimed in claim 1, it is characterised in that also including touch control layer, it is described to touch
Control layer is located between the protective layer and the photovoltaic cell layer, or positioned at the photovoltaic cell layer and described
Between display layer.
3. terminal screen as claimed in claim 1 or 2, it is characterised in that the protective layer is specially
Glassivation.
4. the terminal screen as described in claim 1-3 is arbitrary, it is characterised in that the photovoltaic cell layer
Specially organic compound photovoltaic cell layer.
5. a kind of brightness control system of terminal screen, it is characterised in that the terminal screen is from top to bottom
Include protective layer, photovoltaic cell layer and display layer successively, wherein：The protective layer, for protecting the light
Volt battery layers and the display layer；The photovoltaic cell layer, for converting light energy into electric energy output；It is described
Display layer, for display terminal data message；The brightness control system includes：
Determining module, for determining the power output of the photovoltaic cell layer of the terminal screen；According to what is determined
Power output, determines ambient light intensity；
Control module, for according to the ambient light intensity for determining, controlling the brightness of the terminal screen.
6. brightness control system as claimed in claim 5, it is characterised in that the determining module, tool
Body is used to determine that the visible ray in ambient light is converted to the photovoltaic cell layer output work produced by electric energy
Rate.
7. brightness control system as claimed in claim 6, it is characterised in that also include：
Charging module, is end cell charging for the electric energy based on photovoltaic cell layer output；
Sampling module, charging current when charging for the end cell of sampling；
The determining module, specifically for according to the charging current, determining the photovoltaic cell layer by environment
Visible ray in light is converted to the power output produced by electric energy.
8. brightness control system as claimed in claim 7, it is characterised in that the determining module, tool
Body is used for when ambient light is natural light, determines that the photovoltaic cell layer is converted to the visible ray in ambient light
Power output produced by electric energy is：(the 1- η %) of the gross output of the photovoltaic cell layer；Work as environment
When light is illumination light, determine that the photovoltaic cell layer is converted to the visible ray in ambient light produced by electric energy
Power output is：The gross output of the photovoltaic cell layer；
Wherein, the gross output of the photovoltaic cell layer is according to the charging current and the end cell
Voltage determines；η % are that the photovoltaic cell layer will be invisible in ambient light when ambient light is natural light
Light is converted to power output produced by the electric energy proportion in the gross output of the photovoltaic cell layer.
9. brightness control system as claimed in claim 8, it is characterised in that the black light includes
Infrared light.
10. brightness control system as claimed in claim 8 or 9, it is characterised in that the sampling module,
The sign voltage of the charging current is characterized specifically for output；
The determining module, is additionally operable to, when the sign voltage is more than preset value, determine that ambient light is nature
Light；When the sign voltage is not more than preset value, determine that ambient light is illumination light.
11. a kind of brightness control methods of terminal screen, it is characterised in that the terminal screen is from top to bottom
Include protective layer, photovoltaic cell layer and display layer successively, wherein：The protective layer, for protecting the light
Volt battery layers and the display layer；The photovoltaic cell layer, for converting light energy into electric energy output；It is described
Display layer, for display terminal data message；The brightness control method includes：
Determine the power output of the photovoltaic cell layer of the terminal screen；
According to the power output for determining, ambient light intensity is determined；
According to the ambient light intensity for determining, the brightness of the terminal screen is controlled.
12. brightness control methods as claimed in claim 11, it is characterised in that determine the end panel
The power output of the photovoltaic cell layer of curtain, specially：
Determine that the visible ray in ambient light is converted to the photovoltaic cell layer power output produced by electric energy.
13. brightness control methods as claimed in claim 12, it is characterised in that determine the photovoltaic electric
Visible ray in ambient light is converted to pond layer the power output produced by electric energy, is specifically included：
The electric energy exported based on the photovoltaic cell layer is end cell charging；
The charging current when end cell of sampling charges；
According to the charging current, determine that the visible ray in ambient light is converted to electric energy by the photovoltaic cell layer
Produced power output.
14. brightness control methods as claimed in claim 13, it is characterised in that according to terminal electricity
Charging current when pond is charged, determines that the visible ray in ambient light is converted to electric energy institute by the photovoltaic cell layer
The power output of generation, including：
When ambient light is natural light, determine that the visible ray in ambient light is converted to electricity by the photovoltaic cell layer
Power output produced by energy is：(the 1- η %) of the gross output of the photovoltaic cell layer；
When ambient light is illumination light, determine that the visible ray in ambient light is converted to electricity by the photovoltaic cell layer
Power output produced by energy is：The gross output of the photovoltaic cell layer；
Wherein, the gross output of the photovoltaic cell layer is according to the charging current and the end cell
Voltage determines；η % are that the photovoltaic cell layer will be invisible in ambient light when ambient light is natural light
Light is converted to power output produced by the electric energy proportion in the gross output of the photovoltaic cell layer.
15. brightness control methods as claimed in claim 14, it is characterised in that the black light bag
Include infrared light.
16. brightness control methods as described in claims 14 or 15, it is characterised in that described in sampling
End cell charge when charging current when, specifically obtain characterizing the sign voltage of the charging current；
It is concrete to determine whether ambient light is natural light in the following way：
When the sign voltage is more than preset value, determine that ambient light is natural light；Voltage is characterized when described not
During more than preset value, determine that ambient light is illumination light.
17. a kind of brightness control systems of terminal screen, it is characterised in that the terminal screen is from top to bottom
Include protective layer, photovoltaic cell layer and display layer successively, wherein：The protective layer, for protecting the light
Volt battery layers and the display layer；The photovoltaic cell layer, for converting light energy into electric energy output；It is described
Display layer, for display terminal data message；The brightness control system includes：
Processor, for determining the power output of the photovoltaic cell layer of the terminal screen；It is defeated according to what is determined
Go out power, determine ambient light intensity；And according to the ambient light intensity for determining, control the terminal screen
Brightness.
18. brightness control systems as claimed in claim 17, it is characterised in that the processor, tool
Body is used to determine that the visible ray in ambient light is converted to the photovoltaic cell layer output work produced by electric energy
Rate.
19. brightness control systems as claimed in claim 18, it is characterised in that also include：
Charger, is end cell charging for the electric energy based on photovoltaic cell layer output；
The processor, the charging current when end cell that is additionally operable to sample charges；
The processor, specifically for according to the charging current, determining the photovoltaic cell layer by ambient light
In visible ray be converted to power output produced by electric energy.
20. brightness control systems as claimed in claim 19, it is characterised in that the processor, tool
Body is used for when ambient light is natural light, determines that the photovoltaic cell layer is converted to the visible ray in ambient light
Power output produced by electric energy is：(the 1- η %) of the gross output of the photovoltaic cell layer；Work as environment
When light is illumination light, determine that the photovoltaic cell layer is converted to the visible ray in ambient light produced by electric energy
Power output is：The gross output of the photovoltaic cell layer；Wherein, total output of the photovoltaic cell layer
Power determines according to the voltage of the charging current and the end cell；η % are when ambient light is natural light
When, the black light in ambient light is converted to power output produced by electric energy in institute by the photovoltaic cell layer
State proportion in the gross output of photovoltaic cell layer.
21. brightness control systems as claimed in claim 20, it is characterised in that the processor, tool
Body is used for the sign voltage that output characterizes the charging current；
The processor, is additionally operable to, when the sign voltage is more than preset value, determine that ambient light is natural light；
When the sign voltage is not more than preset value, determine that ambient 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 |
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| Publication Number | Publication Date |
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| CN106652971A true CN106652971A (en) | 2017-05-10 |
| CN106652971B CN106652971B (en) | 2019-08-20 |
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| 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 |
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| JP2019028219A (en) * | 2017-07-28 | 2019-02-21 | 京セラ株式会社 | Electronic apparatus and manufacturing method |
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| CN106652971B (en) | 2019-08-20 |
| WO2017071527A1 (en) | 2017-05-04 |
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