CN108257581A - A kind of method of adjustment of light intensity sensing device, mobile terminal and brightness of display screen - Google Patents
A kind of method of adjustment of light intensity sensing device, mobile terminal and brightness of display screen Download PDFInfo
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- CN108257581A CN108257581A CN201711406180.3A CN201711406180A CN108257581A CN 108257581 A CN108257581 A CN 108257581A CN 201711406180 A CN201711406180 A CN 201711406180A CN 108257581 A CN108257581 A CN 108257581A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/10—Intensity circuits
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
- G01J1/4204—Photometry, e.g. photographic exposure meter using electric radiation detectors with determination of ambient light
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Abstract
An embodiment of the present invention provides the methods of adjustment of a kind of light intensity sensing device, mobile terminal and brightness of display screen, light intensity sensing device includes the first optical sensor, the second optical sensor and second display screen, first optical sensor is located at below the first display screen of mobile terminal, and has the corresponding light pickup area of the first optical sensor in display area；Second display screen connect with processor and inside mobile terminal；Second optical sensor is located inside mobile terminal；Mobile terminal processor is connect respectively with the first optical sensor and the second optical sensor, the light intensity value that processor can be obtained according to the first optical sensor and the second optical sensor determines the light intensity value of ambient light, since the first optical sensor is located at the lower section of the first display screen, it is not take up the display area of the first display screen, without in the trepanning of mobile terminal front, the size of first display screen is extended, improves the screen accounting of mobile terminal, meets the development trend that mobile terminal shields comprehensively.
Description
Technical field
The present invention relates to field of communication technology, more particularly, to a kind of light intensity sensing device, mobile terminal and display screen
The method of adjustment of brightness.
Background technology
With the development of electronic technology and the communication technology, the indispensability that mobile terminal has become in people's daily life is portable
One of equipment shields mobile terminal since screen accounting is high, has good visual experience, becomes the following hair of mobile terminal comprehensively
Exhibition trend.
In comprehensive screen design of mobile terminal, positive optical sensor, preposition camera shooting are needed to mobile terminal display screen
It is first-class to be laid out again.Optical sensor is the brightness for detecting ambient light, real so as to assist the brightness of adjustment display screen
The automatic adjustment of existing brightness of display screen.Since light is along rectilinear propagation properties, the light intensity that different angle is experienced is to differ
Sample, in order to accurately sense the luminous intensity that human eye is experienced, optical sensor usually requires to be arranged on mobile terminal front,
It needs in the trepanning of mobile terminal front, this just occupies certain display screen space, is unfavorable for the extension of display screen, with screen comprehensively
Demand formed conflict, do not meet the development trend that mobile terminal shields comprehensively.
Invention content
The embodiment of the present invention proposes the method for adjustment of a kind of light intensity sensing device, mobile terminal and brightness of display screen,
Certain display screen space is occupied to solve the problem of that current optical sensor is arranged on mobile terminal front.
In a first aspect, an embodiment of the present invention provides a kind of light intensity sensing device, applied to processor and first
The mobile terminal of display screen, including the first optical sensor, the second optical sensor and second display screen,
First optical sensor is located at below first display screen, and towards the display area of first display screen
It sets, there is the corresponding light pickup area of first optical sensor in the display area, first optical sensor is used
In the first light intensity value for obtaining the light pickup area；
The second display screen is connected to the processor and in the mobile terminal, for being acquired with the light
Region shows identical content and brightness；
Second optical sensor is located inside the mobile terminal, and is set towards the second display screen, for obtaining
Take the second light intensity value of light that the second display screen is sent out；
The processor is connect respectively with first optical sensor and the second optical sensor, for according to first light
Intensity value and second light intensity value determine the light intensity value of the first display screen local environment.
Second aspect, an embodiment of the present invention provides a kind of mobile terminal, the mobile terminal includes the embodiment of the present invention
Any one of them light intensity sensing device of offer.
The third aspect, an embodiment of the present invention provides a kind of methods of adjustment of brightness of display screen, implement applied to the present invention
The mobile terminal that example provides, the method includes：
First light intensity value is obtained by first optical sensor；
The second light intensity value of the second display screen is obtained by second optical sensor, wherein, described second is aobvious
Display screen and the light pickup area show identical content and brightness；
According to first light intensity value, the second light intensity value and default calibration factor, first display screen is determined
The light intensity value of local environment；
According to the light intensity value of the first display screen local environment, the display brightness of first display screen is adjusted.
Fourth aspect, an embodiment of the present invention provides a kind of computer readable storage medium, the computer-readable storage
Computer program is stored on medium, the computer program is realized any one of provided in an embodiment of the present invention when being executed by processor
The step of method of adjustment of the brightness of display screen.
The light intensity sensing device of the embodiment of the present invention, the first optical sensor are located at the lower section of the first display screen, are not take up
The display area of first display screen, without in the trepanning of mobile terminal front so that the size of the first display screen can extend, and improve
The screen accounting of mobile terminal, meets the development trend that mobile terminal shields comprehensively.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by institute in the description to the embodiment of the present invention
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the present invention
Example, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of structure diagram of light intensity sensing device of the embodiment of the present invention one；
Fig. 2 is a kind of step flow chart of the method for adjustment of brightness of display screen of the embodiment of the present invention three；
Fig. 3 is a kind of step flow chart of the method for adjustment of brightness of display screen of the embodiment of the present invention four；
Fig. 4 is a kind of structure diagram of the adjusting apparatus of brightness of display screen of the embodiment of the present invention five；
Fig. 5 is that a kind of default calibration factor determining module of the adjusting apparatus of brightness of display screen of the embodiment of the present invention five obtains
The structure diagram of modulus block；
Fig. 6 is a kind of structure of the light intensity value determining module of the adjusting apparatus of brightness of display screen of the embodiment of the present invention five
Block diagram；
Fig. 7 is a kind of structural frames of the brightness adjusting section of the adjusting apparatus of brightness of display screen of the embodiment of the present invention five
Figure；
Fig. 8 is a kind of structure diagram of mobile terminal of the embodiment of the present invention six.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is part of the embodiment of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained without creative efforts
Example, shall fall within the protection scope of the present invention.
Embodiment one
Fig. 1 is a kind of structure diagram of light intensity sensing device of the embodiment of the present invention one, as shown in Figure 1, of the invention
The light intensity sensing device of embodiment can be applied to the mobile terminal with processor (not shown) and the first display screen 2, packet
Include the first optical sensor 3, the second optical sensor 4 and second display screen 5.
In embodiments of the present invention, mobile terminal can be set including electronics such as mobile phone, tablet computer, electronic digit assistants
Standby, the first display screen 2 can be the display screen of mobile terminal, and the first optical sensor 3, the second optical sensor 4 and second are shown
Screen 5 can be located at the inside of mobile terminal.
As shown in Figure 1, the first optical sensor 3 is located at 2 lower section of the first display screen, and the viewing area of the first display screen 2 of direction
Domain is set, for example, the display area of light collection surface the first display screen 2 of direction of the first light sensor 3, in display area
Form a light pickup area M.Second display screen 5 connect with processor (not shown) and in mobile terminal, the second light
Sensor 4 is located inside mobile terminal, and is set towards second display screen 5, such as the light collection surface of the second light sensor 4
Towards second display screen 5, a light pickup area N is formd in the display area of second display screen 5.
In embodiments of the present invention, for the first optical sensor 3 for obtaining the first light intensity value, the first light intensity value is first
The light intensity value of 2 local environment of display screen and the first display screen 2 are in the total of the light pickup area M light intensity values of light sent out
It is used to show identical content and brightness with light pickup area M with, second display screen 5, the second optical sensor 4 is for acquisition the
Second light intensity value of the light that two display screens 5 are sent out.
In practical applications, mobile terminal by cover board 1 and center 7 by the first display screen 2, the first optical sensor 3, second
Optical sensor 4 and second display screen 5 are encapsulated in inside mobile terminal, and the light of external environment can penetrate cover board 1 and first
After display screen 2, acquired by the first optical sensor 3, meanwhile, the first display screen 2 is sent out in display in light pickup area M
Light also acquired by the first optical sensor 3, therefore the first light intensity value for getting of the first optical sensor 3 is external environment
The light intensity value summation of light that light and light pickup area M are sent out, due to the light pickup area N of second display screen 5 and first
The light pickup area M of display screen 2 shows identical content and brightness, therefore, the second light that the second light sensor 4 is got
The interference value that the light that the light pickup area M that intensity value is equivalent to the first display screen 2 is sent out detects the luminous intensity of environment, because
This, the processor of mobile terminal can determine 2 local environment of the first display screen according to the first light intensity value and the second light intensity value
Light intensity value, so as to according to the light intensity value of local environment adjust the first display screen 2 brightness.
The light intensity sensing device of the embodiment of the present invention, since the first optical sensor is located at the lower section of the first display screen, no
The display area of the first display screen is occupied, does not need to set trepanning in mobile terminal front so that the size energy of the first display screen
Enough extensions, improve the screen accounting of mobile terminal, meet the development trend that mobile terminal shields comprehensively.
Further, by the way that second display screen is set to show the content identical with the light pickup area of the first display screen,
Then the light intensity value of second display screen is obtained by the second optical sensor, is equivalent to light that the first display screen is sent out to the first light
The interference of sensor from the first light intensity value of the first optical sensor acquisition after exclusive PCR, can accurately obtain ambient light
Through the light intensity value after the first display screen so that subject to the brightness more that the first display screen is adjusted according to the light intensity value of ambient light
Really.
In one preferred embodiment of the invention, the first display screen 2 and second display screen 5 are mutually isolated, and the first light passes
Sensor 3 and the second optical sensor 4 are mutually isolated, i.e., the light that the first display screen 2 and second display screen 5 are sent out will not interfere with each other,
First optical sensor 3 will not be interfered by the light that second display screen is sent out, and the second optical sensor 4 will not be by the first display screen 2
The light interference sent out.Specifically, mobile terminal further includes mainboard 6, the first display screen 2 and second display screen 5 are located at master respectively
The both sides of plate 6, the first optical sensor 3 are located at mainboard 6 towards the side of the first display screen 2, and the second optical sensor 4 is located at mainboard 6
Towards the side of second display screen 5, it is, of course, also possible to the first display screen 2 and second display screen 5 are isolated otherwise,
First optical sensor 3 is isolated with the second optical sensor 4, such as by setting the modes such as partition board, the embodiment of the present invention pair on center 7
The mode of isolation does not limit.
In the embodiment of the present invention, the first display screen and second display screen are located at mainboard both sides, the first optical sensor respectively
It is located at mainboard both sides with the second optical sensor, interfering with each other, while second display screen and when can be to avoid detection light intensity
Two optical sensors are in environment unglazed inside mobile terminal, are avoided the interference of extraneous light, are further improved light intensity
Spend the accuracy of detection.
In another preferred embodiment of the present invention, the first optical sensor 3 and the second optical sensor 4 can be identical light
Sensor, identical optical sensor can effectively eliminate shared error, such as the error of sensor is Δ C, it is assumed that the first light passes
The value of sensor 3 is A+ Δs C, and the value of the second optical sensor 4 is B+ Δ C, then the light intensity value of ambient light is：A+ΔC-(B+ΔC)
=A-B eliminates shared error delta C, it is possible to prevente effectively from the error that otherness is brought, further improves luminous intensity detection
Accuracy.
In the embodiment of the present invention, optical sensor is arranged on the lower section of the first display screen, is set without the front in mobile terminal
Put trepanning so that the size of the first display screen is expanded, and improves the screen accounting of mobile terminal, meets mobile terminal and shield comprehensively
Development trend.
Simultaneously by the way that second display screen is set to show the content identical with the light pickup area of the first display screen, Ran Houtong
The light intensity value that the second optical sensor obtains second display screen is crossed, is equivalent to light that the first display screen is sent out to the first optical sensor
Interference, in the first light intensity value obtained from the first optical sensor after exclusive PCR, can accurately obtain ambient light and pass through the
Light intensity value after one display screen so that the brightness that the first display screen is adjusted according to the light intensity value of ambient light is more accurate.
Embodiment two
An embodiment of the present invention provides a kind of mobile terminal, the mobile terminal includes the light that the embodiment of the present invention one provides
Intensity detecting device, by embodiment one it is found that the optical sensor of mobile terminal is arranged on the lower section of the first display screen, without moving
The front setting trepanning of dynamic terminal so that the size of the first display screen is expanded, and improves the screen accounting of mobile terminal, meets
The development trend that mobile terminal shields comprehensively.
Embodiment three
Fig. 2 is a kind of step flow chart of the method for adjustment of brightness of display screen of the embodiment of the present invention three, and the present invention is implemented
A kind of method of adjustment of brightness of display screen of example, applied to the mobile terminal of embodiment two, the method includes：
Step 101, the first light intensity value is obtained by first optical sensor.
In embodiments of the present invention, mobile terminal in use, can use in different scenes, such as indoor
Outdoor is transferred to, the scene that light significant change is waited outside automobile is transferred in automobile, can be obtained by the first light sensor
First light intensity value, first light intensity value are adopted for the light intensity value of the first display screen local environment and the first display screen in light
The summation of the light intensity value of light that collection region is sent out.
Specifically, mobile terminal includes light intensity sensing device, shown as shown in Figure 1, the first optical sensor 3 is located at first
2 lower section of display screen, and set towards the display area of the first display screen 2, then the first optical sensor 3 can both obtain external ambient light
Line is irradiated to the light intensity value on the first optical sensor 3 after cover board 1, while also gets the light on the first display screen 2
The light intensity value for the light that pickup area M is sent out, therefore, the first light intensity value that the first optical sensor 3 is got are total for the two
With.
Step 102, the second light intensity value of the second display screen is obtained by second optical sensor, wherein, institute
It states second display screen and the light pickup area and shows identical content and brightness.
As shown in Figure 1, in the embodiment of the present invention, the light pickup area M of 5 and first display screen 2 of second display screen is shown
Identical content and brightness, specifically, second display screen 5 is connect with the first display screen 2 with the processor of mobile terminal, with
So that when the first display screen 2 shows related content, second display screen 5 and the light pickup area M of the first display screen 2 show phase
Same content and brightness can then pass through the second light intensity value that the second optical sensor 4 obtains second display screen 5.
Step 103, according to first light intensity value, the second light intensity value and default calibration factor, described is determined
The light intensity value of one display screen local environment.
Due to the light pickup area of the light intensity value and the first display screen of the first light intensity value including external ambient light
Light intensity value, and the content that second display screen is shown is identical with the content that the light pickup area of the first display screen is shown, therefore
Second light intensity value is equivalent to the light intensity value of the light pickup area of the first display screen, therefore, can be in the first light intensity value
In exclude the light intensity value that the first display screen local environment can be obtained after the second light intensity value, specifically, in order to disappear
Except the otherness between the first display screen and second display screen, the otherness between the first optical sensor and the second optical sensor,
Default calibration factor can be set, i.e. the product of the second light intensity value and default calibration factor is true first display screen to light
The interference value of intensity detection can obtain the first display screen local environment after the interference value is excluded in the first light intensity value
Light intensity value.
Step 104, the light intensity value according to the first display screen local environment adjusts the display of first display screen
Brightness.
After the light intensity value of the first display screen local environment is obtained, it may be determined that corresponding brightness of the light intensity value etc.
Grade, and be compared with the brightness degree of current first display screen, if it is inconsistent, according to scheduled adjustable strategies, it will
The display brightness level adjustment of first display screen is the corresponding brightness degree of light intensity value.
In the embodiment of the present invention, the first optical sensor is arranged on the lower section of the first display screen to obtain the first light intensity value,
Without the front setting trepanning in mobile terminal so that the size of the first display screen is expanded, and improves the screen of mobile terminal
Accounting meets the development trend that mobile terminal shields comprehensively.
Simultaneously by the way that second display screen is set to show the content identical with the light pickup area of the first display screen, Ran Houtong
The second light intensity value that the second optical sensor obtains second display screen is crossed, the light that the first display screen is sent out is equivalent to and the first light is passed
Then the interference of sensor determines the light intensity of external environment according to the first light intensity value, the second light intensity value and default calibration factor
Angle value, and the brightness of the first display screen is adjusted according to the light intensity value of external environment, by being obtained from the first optical sensor
After the interference that the first display screen is excluded in the first light intensity value taken, the light that ambient light passes through the first display screen can be accurately obtained
Intensity value so that the brightness that the first display screen is adjusted according to the light intensity value of environment is more accurate.
Example IV
Fig. 3 is a kind of step flow chart of the method for adjustment of brightness of display screen of the embodiment of the present invention four, and the present invention is implemented
A kind of method of adjustment of brightness of display screen of example, applied to the mobile terminal of embodiment two, the method includes：
Step 201, the first light intensity value is obtained by first optical sensor.
In embodiments of the present invention, mobile terminal in use, can use in different scenes.Such as Fig. 1 institutes
Show, in different usage scenarios, the first light intensity value of light pickup area M can be obtained by the first light sensor 3,
First light intensity value is sent out for the light intensity value of 2 local environment of the first display screen and the first display screen 2 in light pickup area M
Light light intensity value summation.
Step 202, the second light intensity value of the second display screen is obtained by second optical sensor, wherein, institute
It states second display screen and the light pickup area and shows identical content and brightness.
As shown in Figure 1, in the embodiment of the present invention, the light pickup area M of 5 and first display screen 2 of second display screen is shown
Identical content and brightness, specifically, second display screen 5 is connect with the first display screen 2 with the processor of mobile terminal, with
So that when the first display screen 2 shows related content, second display screen 5 and the light pickup area M of the first display screen 2 show phase
Same content and brightness can then pass through the second light intensity value that the second optical sensor obtains second display screen 5.
Step 203, second light intensity value and the product of default calibration factor are calculated, obtains first display screen pair
The luminous intensity interference value of luminous intensity detection.
In the embodiment of the present invention, in order to eliminate the error in the display of the first display screen and second display screen, the first sensing
The error of device and the second optical sensor needs to calibrate entire optical detection device, specifically, can by following steps into
Row calibration：
Sub-step S11, sets multiple calibration pictures, and the multiple calibration picture includes multicolour and brightness.
In order to enable under a variety of display pictures, second display screen is equivalent to the light pickup area of the first display screen, can
With the multiple calibration pictures for setting multicolour and various levels of brightness is combined, then read respectively under multiple calibration pictures
The light intensity value of first optical sensor and the second optical sensor, for example, setting n kinds color and brightness combination, each color and
The combination of brightness forms a calibration picture, obtains multiple calibration pictures.
Sub-step S12 drives first display screen and the second display screen to show the multiple calibration picture successively.
After multiple calibration pictures are set, in order to read multiple luminous intensities of the first optical sensor and the second optical sensor
Value, can show same calibration picture simultaneously in the first display screen and second display screen, then switching calibration picture.
In practical applications, it can be calibrated to ensure no ambient light in black box so that the first optical sensor is read
What is taken is the light intensity value of the first display screen, and what the second optical sensor was read is the light intensity value of second display screen, can be effective
Influence of the ambient light to calibration is avoided, improves the accuracy of calibration.
Sub-step S13, when picture is each calibrated in acquisition display, the third light of the light pickup area of first display screen
4th light intensity value of intensity value and the second display screen.
When showing each calibration picture, the third light intensity value a2n of the first optical sensor is successively read, reads second
4th light intensity value b2n of optical sensor then after multiple calibration pictures are shown, obtains multiple light intensity of the first optical sensor
Angle value：A21, a21 ... ..a2n, multiple light intensity values of the second optical sensor：b21、b21、…..b2n.
Sub-step S14 each calibrates third light intensity value and the 4th light intensity value during picture according to display, calculates each
The calibration factor of picture is calibrated, obtains multiple calibration factors.
Specifically, the ratio of third light intensity value and the 4th light intensity value can be determined as to the school of each calibration picture
Quasi- coefficient, for example, c1=a21/b21, c2=a22/b22 ... cn=a2n/b2n, wherein, a2n is n-th of calibration picture of display
The third light intensity value of first optical sensor during face, b2n are the 4th light intensity of the second optical sensor when showing n-th of calibration picture
Angle value, cn are the calibration factor for showing n-th of calibration picture.
Sub-step S15 determines the default calibration factor according to the multiple calibration factor.
In one preferred embodiment of the invention, sub-step S15 can include following sub-step：
Sub-step S151 determines the calibration factor of maximum value and the calibration system of minimum value from the multiple calibration factor
Number.
It in the embodiment of the present invention, causes to fluctuate in order to avoid there is the uncertain factor calibrated, needs having for assessment calibration
Effect property, specifically, the calibration factor of maximum value and the calibration factor of minimum value can be determined from multiple calibration factors, with
Determine the fluctuating range of calibration factor.
Sub-step S152 calculates the difference of the calibration factor of the maximum value and the calibration factor of minimum value, is calibrated
Coefficient differentials.
After determining minimum and maximum calibration factor, the difference of the two, i.e. Max (c1...cn)-Min can be calculated
(c1...cn), wherein Max (c1...cn) is maximum value calculation, and Min (c1...cn) minimum value calculates, so as to from n school
Minimum and maximum calibration factor is determined in quasi- coefficient.
Sub-step S153, judges whether the calibration factor difference is less than default calibration error coefficient.
It, can be by the difference and default school after the difference of the calibration factor for the calibration factor and minimum value for calculating maximum value
Quasi- error coefficient compares, to determine whether the secondary calibration is effective.Such as calibration error coefficient is d, then Max (c1...cn)-Min
(c1...cn)<D if set up, illustrates that this calibration is effective, performs sub-step S154, otherwise perform step S155.
Sub-step S154 in the case where the calibration factor difference is less than default calibration error coefficient, is calculated described more
The average value of a calibration factor obtains the default calibration factor.
After calibrating successfully, the arithmetic mean of instantaneous value of multiple calibration factors can be calculated as default calibration factor, i.e., it is default
Calibration factor c=(c1+c2...cn)/n, wherein cn are the calibration factor for showing n-th of calibration picture.
Certainly, those skilled in the art can also calculate default calibration factor otherwise, such as can will be multiple
Root mean square average, weighted average of calibration factor etc. do not limit this as default calibration factor, the embodiment of the present invention
System.
Sub-step S155 prompts the information of calibration failure.
It when the difference of minimum and maximum calibration factor is more than default calibration factor error, then calibrates and fails, prompt calibration
After the completion of failure information, such as calibration calibration failure information is prompted in mobile terminal display screen.
After sub-step S11- sub-steps S15, obtain default calibration factor, then can calculate the second light intensity value with it is pre-
If the product of calibration factor, you can to obtain the luminous intensity interference value that the first display screen detects luminous intensity.
Specifically, the content that the content shown due to second display screen and the light pickup area of the first display screen are shown
It is identical, therefore the second light intensity value is equivalent to the light intensity value of the light pickup area of the first display screen, meanwhile, in order to eliminate
The otherness between otherness, the first optical sensor and the second optical sensor between one display screen and second display screen, second
Light intensity value and the product of default calibration factor are the interference that true first display screen detects luminous intensity.
For example, the second light intensity value that the second optical sensor obtains is b, it is c to preset calibration factor, then the first display screen pair
Luminous intensity interference value a2=c × b of luminous intensity detection.
Step 204, first light intensity value and the difference of the luminous intensity interference value are calculated, obtains first display
Shield the light intensity value of local environment.
In the embodiment of the present invention, due to the light intensity value and the first display screen of the first light intensity value including external ambient light
The light intensity value of light pickup area, for example, the first light intensity value a=a1+a2, wherein a1 are the light intensity value of external environment,
A2 is the luminous intensity interference value that the light pickup area of the first display screen detects luminous intensity, then a1=a-a2=a-c × b, i.e.,
The second light intensity value can be excluded in the first light intensity value can obtain the light intensity value of the first display screen local environment,
Improve the accuracy of luminous intensity detection.
Step 205, the light intensity value according to the first display screen local environment adjusts the display of first display screen
Brightness.
In embodiments of the present invention, step 205 can include following sub-step：
Sub-step S21 according to the light intensity value of the first display screen local environment, determines the mesh of first display screen
Mark brightness degree.
After the light intensity value of the first display screen local environment is obtained, it may be determined that corresponding brightness of the light intensity value etc.
Grade, specifically, the mapping table of light intensity value and brightness degree can be stored in the terminal or be provided with luminous intensity
Value and the curve of brightness degree, can determine corresponding object brightness of the light intensity value of environment etc. by above-mentioned mapping table and curve
Grade.
Sub-step S22, in the inconsistent feelings of the current brightness level of the object brightness grade and first display screen
Under condition, the brightness degree of first display screen is adjusted to the object brightness grade.
Mobile terminal can obtain the current brightness level of the first display screen according to current display parameters, can incite somebody to action current
The brightness degree of first display screen is compared, if it is inconsistent, it is bright that the brightness degree of the first display screen is adjusted to target
Grade is spent, if unanimously, do not adjusted, continues to obtain the first light intensity value and the second light intensity value.
It in embodiments of the present invention, can be according to scheduled adjustable strategies, by the display brightness grade tune of the first display screen
Whole is the corresponding brightness degree of light intensity value, such as according to preferential strategy of regulating the speed, once adjust current brightness level
For object brightness grade, also current brightness level can be adjusted to object brightness several times according to the gentle preferential strategy of adjustment
Grade.
In the embodiment of the present invention, the first optical sensor is arranged on the lower section of the first display screen to obtain the first light intensity value,
Without the front setting trepanning in mobile terminal so that the size of the first display screen is expanded, and improves the screen of mobile terminal
Accounting meets the development trend that mobile terminal shields comprehensively.
Further, by the way that second display screen is set to show the content identical with the light pickup area of the first display screen,
Then the light intensity value of second display screen is obtained by the second optical sensor, is equivalent to light that the first display screen is sent out to the first light
Then the interference of sensor calculates the product of the second light intensity value and default calibration factor and the first light intensity value and light intensity
The difference of degree interference value obtains the light intensity value of external environment, and according to the light intensity value of external environment to the bright of the first display screen
Degree is adjusted, can after the interference that the first display screen can be excluded from the first light intensity value that the first optical sensor obtains
The accurate light intensity value for obtaining ambient light and passing through the first display screen so that the first display screen is adjusted according to the light intensity value of environment
Brightness is more accurate.
Embodiment five
A kind of structure diagram of Fig. 4 screen intensity adjusting apparatus of embodiment five to realize the present invention.
The adjusting apparatus 300 of a kind of brightness of display screen of the embodiment of the present invention, applied to the mobile terminal of embodiment two, institute
Device is stated to include：
First light intensity value acquisition module 301, for obtaining the first light intensity value by first optical sensor；
Second light intensity value acquisition module 302 obtains the second display screen for passing through second optical sensor
Second light intensity value, wherein, the second display screen and the light pickup area show identical content and brightness；
Light intensity value determining module 303, for according to first light intensity value, the second light intensity value and default calibration
Coefficient determines the light intensity value of the first display screen local environment；
Brightness adjusting section 304, for the light intensity value according to the first display screen local environment, adjustment described first
The display brightness of display screen.
As shown in figure 5, in one preferred embodiment of the invention, brightness of display screen adjusting apparatus further includes default calibration
Coefficient determination module 305, the default calibration factor determining module 305 include：
Picture setting submodule 3051 is calibrated, for setting multiple calibration pictures, the multiple calibration picture includes a variety of
Color and brightness；
Picture display sub-module 3052 is calibrated, for first display screen and the second display screen to be driven to show successively
The multiple calibration picture；
Light intensity value acquisition submodule 3053, when showing each calibration picture for obtaining, the light of first display screen
The third light intensity value of line pickup area and the 4th light intensity value of the second display screen；
Calibration factor computational submodule 3054, for according to the third light intensity value and the 4th shown when each calibrating picture
Light intensity value calculates the calibration factor of each calibration picture, obtains multiple calibration factors；
Default calibration factor determination sub-module 3055, for determining the default calibration system according to the multiple calibration factor
Number.
The default calibration factor determination sub-module 3055 includes：
Maximum value and minimum value calibration factor determination unit, for determining maximum value from the multiple calibration factor
The calibration factor of calibration factor and minimum value；
Calibration factor difference computational unit, for calculating the calibration factor of the calibration factor of the maximum value and minimum value
Difference obtains calibration factor difference；
Calibration error coefficient judging unit, for judging whether the calibration factor difference is less than default calibration error system
Number；
Default calibration factor determination unit, for being less than the situation of default calibration error coefficient in the calibration factor difference
Under, the average value of the multiple calibration factor is calculated, obtains the default calibration factor；
Failure information prompt unit is calibrated, for prompting the information of calibration failure.
As shown in fig. 6, the light intensity value determining module 303 includes：
Luminous intensity interference value computational submodule 3031, for calculating second light intensity value and the default calibration factor
Product, obtain the luminous intensity interference value that first display screen detects luminous intensity；
Light intensity value computational submodule 3032, for calculating the difference of first light intensity value and the luminous intensity interference value
Value, the light intensity value of the first display screen local environment.
As shown in fig. 7, the brightness adjusting section 304 includes：
Object brightness grade determination sub-module 3041, for the light intensity value according to the first display screen local environment,
Determine the object brightness grade of first display screen；
Brightness degree adjusts submodule 3042, in the current bright of the object brightness grade and first display screen
In the case that degree grade is inconsistent, the brightness degree of first display screen is adjusted to the target display brightness grade.
Mobile terminal provided in an embodiment of the present invention can realize that mobile terminal is realized in the embodiment of the method for Fig. 2 and Fig. 3
Each process, repeated to avoid, which is not described herein again
The screen intensity adjusting apparatus of the embodiment of the present invention, the first optical sensor are arranged on the lower section of the first display screen to obtain
The first light intensity value is taken, without the front setting trepanning in mobile terminal so that the size of the first display screen is expanded, and improves
The screen accounting of mobile terminal, meets the development trend that mobile terminal shields comprehensively.
Further, by the way that second display screen is set to show the content identical with the light pickup area of the first display screen,
Then the light intensity value of second display screen is obtained by the second optical sensor, is equivalent to light that the first display screen is sent out to the first light
Then the interference of sensor calculates the product of the second light intensity value and default calibration factor and the first light intensity value and light intensity
The difference of degree interference value obtains the light intensity value of external environment, and according to the light intensity value of external environment to the bright of the first display screen
Degree is adjusted, can after the interference that the first display screen can be excluded from the first light intensity value that the first optical sensor obtains
The accurate light intensity value for obtaining ambient light and passing through the first display screen so that the first display screen is adjusted according to the light intensity value of environment
Brightness is more accurate.
Embodiment six
A kind of hardware architecture diagram of Fig. 8 mobile terminals of each embodiment to realize the present invention,
The mobile terminal 400 includes but not limited to：It is radio frequency unit 401, network module 402, audio output unit 403, defeated
Enter unit 404, sensor 405, display unit 406, user input unit 407, interface unit 408, memory 409, processor
The components such as 410 and power supply 411.It will be understood by those skilled in the art that the mobile terminal structure shown in Fig. 8 is not formed
Restriction to mobile terminal, mobile terminal can include than illustrate more or fewer components either combine certain components or
Different component arrangements.In embodiments of the present invention, mobile terminal include but not limited to mobile phone, tablet computer, laptop,
Palm PC, car-mounted terminal, wearable device and pedometer etc..
Wherein, the sensor 405 is for the first light intensity value of acquisition and the second light intensity value；
Wherein, processor 410, for according to first light intensity value, the second light intensity value and default calibration factor,
Determine the light intensity value of the first display screen local environment；According to the light intensity value of the first display screen local environment, adjust
The display brightness of whole first display screen.
The mobile terminal of the embodiment of the present invention, by the way that second display screen is set to show and the light acquisition zone of the first display screen
Then the identical content in domain obtains the light intensity value of second display screen by the second optical sensor, be equivalent to the first display screen hair
Interference of the light gone out to the first optical sensor, it is then true according to the first light intensity value, the second light intensity value and default calibration factor
Determine the light intensity value of external environment, and the brightness of the first display screen is adjusted according to the light intensity value of external environment, it can
After the interference that the first display screen is excluded in the first light intensity value obtained from the first optical sensor, it can accurately obtain ambient light and wear
Cross the light intensity value of the first display screen so that the brightness that the first display screen is adjusted according to the light intensity value of environment is more accurate.
It should be understood that the embodiment of the present invention in, radio frequency unit 401 can be used for receive and send messages or communication process in, signal
Send and receive, specifically, by from base station downlink data receive after, handled to processor 410；In addition, by uplink
Data are sent to base station.In general, radio frequency unit 401 includes but not limited to antenna, at least one amplifier, transceiver, coupling
Device, low-noise amplifier, duplexer etc..In addition, radio frequency unit 401 can also by radio communication system and network and other set
Standby communication.
Mobile terminal has provided wireless broadband internet to the user by network module 402 and has accessed, and such as user is helped to receive
It sends e-mails, browse webpage and access streaming video etc..
It is that audio output unit 403 can receive radio frequency unit 401 or network module 402 or in memory 409
The audio data of storage is converted into audio signal and exports as sound.Moreover, audio output unit 403 can also be provided and be moved
The relevant audio output of specific function that dynamic terminal 400 performs is (for example, call signal receives sound, message sink sound etc.
Deng).Audio output unit 403 includes loud speaker, buzzer and receiver etc..
Input unit 404 is used to receive audio or video signal.Input unit 404 can include graphics processor
(Graphics Processing Unit, GPU) 4041 and microphone 4042, graphics processor 4041 is in video acquisition mode
Or the static images or the image data of video obtained in image capture mode by image capture apparatus (such as camera) carry out
Reason.Treated, and picture frame may be displayed on display unit 406.Through graphics processor 4041, treated that picture frame can be deposited
Storage is sent in memory 409 (or other storage mediums) or via radio frequency unit 401 or network module 402.Mike
Wind 4042 can receive sound, and can be audio data by such acoustic processing.Treated audio data can be
The form output of mobile communication base station can be sent to via radio frequency unit 401 by being converted in the case of telephone calling model.
Mobile terminal 400 further includes at least one sensor 405, such as optical sensor, motion sensor and other biographies
Sensor.Specifically, optical sensor includes ambient light sensor and proximity sensor, wherein, ambient light sensor can be according to environment
The light and shade of light adjusts the brightness of display panel 4061, and proximity sensor can close when mobile terminal 400 is moved in one's ear
Display panel 4061 and/or backlight.As one kind of motion sensor, accelerometer sensor can detect in all directions (general
For three axis) size of acceleration, size and the direction of gravity are can detect that when static, can be used to identify mobile terminal posture (ratio
Such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, tap)；It passes
Sensor 405 can also include fingerprint sensor, pressure sensor, iris sensor, molecule sensor, gyroscope, barometer, wet
Meter, thermometer, infrared ray sensor etc. are spent, details are not described herein.
Display unit 406 is used to show by information input by user or be supplied to the information of user.Display unit 406 can wrap
Display panel 4061 is included, liquid crystal display (Liquid Crystal Display, LCD), Organic Light Emitting Diode may be used
Display panel 4061 is configured in forms such as (Organic Light-Emitting Diode, OLED).
User input unit 407 can be used for receiving the number inputted or character information and generation and the use of mobile terminal
The key signals input that family is set and function control is related.Specifically, user input unit 407 include touch panel 4071 and
Other input equipments 4072.Touch panel 4071, also referred to as touch screen collect user on it or neighbouring touch operation
(for example user uses any suitable objects such as finger, stylus or attachment on touch panel 4071 or in touch panel 4071
Neighbouring operation).Touch panel 4071 may include both touch detecting apparatus and touch controller.Wherein, touch detection
Device detects the touch orientation of user, and detects the signal that touch operation is brought, and transmits a signal to touch controller；Touch control
Device processed receives touch information from touch detecting apparatus, and is converted into contact coordinate, then gives processor 410, receiving area
It manages the order that device 410 is sent and is performed.It is furthermore, it is possible to more using resistance-type, condenser type, infrared ray and surface acoustic wave etc.
Type realizes touch panel 4071.In addition to touch panel 4071, user input unit 407 can also include other input equipments
4072.Specifically, other input equipments 4072 can include but is not limited to physical keyboard, function key (such as volume control button,
Switch key etc.), trace ball, mouse, operating lever, details are not described herein.
Further, touch panel 4071 can be covered on display panel 4061, when touch panel 4071 is detected at it
On or near touch operation after, send to processor 410 with determine touch event type, be followed by subsequent processing device 410 according to touch
The type for touching event provides corresponding visual output on display panel 4061.Although in fig. 8, touch panel 4071 and display
Panel 4061 is the component independent as two to realize the function that outputs and inputs of mobile terminal, but in some embodiments
In, can be integrated by touch panel 4071 and display panel 4061 and realize the function that outputs and inputs of mobile terminal, it is specific this
Place does not limit.
Interface unit 408 is the interface that external device (ED) is connect with mobile terminal 400.For example, external device (ED) can include
Line or wireless head-band earphone port, external power supply (or battery charger) port, wired or wireless data port, storage card end
Mouth, port, audio input/output (I/O) port, video i/o port, earphone end for connecting the device with identification module
Mouthful etc..Interface unit 408 can be used for receiving the input (for example, data information, electric power etc.) from external device (ED) and
One or more elements that the input received is transferred in mobile terminal 400 can be used in 400 He of mobile terminal
Data are transmitted between external device (ED).
Memory 409 can be used for storage software program and various data.Memory 409 can mainly include storing program area
And storage data field, wherein, storing program area can storage program area, application program (such as the sound needed at least one function
Sound playing function, image player function etc.) etc.；Storage data field can store according to mobile phone use created data (such as
Audio data, phone directory etc.) etc..In addition, memory 409 can include high-speed random access memory, can also include non-easy
The property lost memory, a for example, at least disk memory, flush memory device or other volatile solid-state parts.
Processor 410 is the control centre of mobile terminal, utilizes each of various interfaces and the entire mobile terminal of connection
A part is stored in storage by running or performing the software program being stored in memory 409 and/or module and call
Data in device 409 perform the various functions of mobile terminal and processing data, so as to carry out integral monitoring to mobile terminal.Place
Reason device 410 may include one or more processing units；Preferably, processor 410 can integrate application processor and modulatedemodulate is mediated
Device is managed, wherein, the main processing operation system of application processor, user interface and application program etc., modem processor is main
Processing wireless communication.It is understood that above-mentioned modem processor can not also be integrated into processor 410.
Mobile terminal 400 can also include the power supply 411 (such as battery) powered to all parts, it is preferred that power supply 411
Can be logically contiguous by power-supply management system and processor 410, so as to realize management charging by power-supply management system, put
The functions such as electricity and power managed.
In addition, mobile terminal 400 includes some unshowned function modules, details are not described herein.
Preferably, the embodiment of the present invention also provides a kind of mobile terminal, and including processor 410, memory 409 is stored in
On memory 409 and the computer program that can be run on the processor 410, the computer program are performed by processor 410
Each process of the method for adjustment embodiment of the above-mentioned brightness of display screen of Shi Shixian, and identical technique effect can be reached, to avoid
It repeats, which is not described herein again.
The embodiment of the present invention also provides a kind of computer readable storage medium, and meter is stored on computer readable storage medium
Calculation machine program, the computer program realize each mistake of the method for adjustment embodiment of above-mentioned brightness of display screen when being executed by processor
Journey, and identical technique effect can be reached, it is repeated to avoid, which is not described herein again.Wherein, the computer-readable storage medium
Matter, such as read-only memory (Read-Only Memory, abbreviation ROM), random access memory (Random Access
Memory, abbreviation RAM), magnetic disc or CD etc..
Those of ordinary skill in the art may realize that the embodiment with reference to disclosed in the embodiment of the present invention describes each
Exemplary unit and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These
Function is performed actually with hardware or software mode, specific application and design constraint depending on technical solution.Profession
Technical staff can realize described function to each specific application using distinct methods, but this realization should not
Think beyond the scope of this invention.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit can refer to the corresponding process in preceding method embodiment, and details are not described herein.
In embodiment provided herein, it should be understood that disclosed device and method can pass through others
Mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the unit, only
A kind of division of logic function, can there is an other dividing mode in actual implementation, for example, multiple units or component can combine or
Person is desirably integrated into another system or some features can be ignored or does not perform.Another point, shown or discussed is mutual
Between coupling or direct-coupling or call connection can be by some interfaces, the INDIRECT COUPLING or call of device or unit connect
It connects, can be electrical, machinery or other forms.
The unit illustrated as separating component may or may not be physically separate, be shown as unit
The component shown may or may not be physical unit, you can be located at a place or can also be distributed to multiple
In network element.Some or all of unit therein can be selected according to the actual needs to realize the mesh of this embodiment scheme
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also
That each unit is individually physically present, can also two or more units integrate in a unit.
If the function is realized in the form of SFU software functional unit and is independent product sale or in use, can be with
It is stored in a computer read/write memory medium.Based on such understanding, technical scheme of the present invention is substantially in other words
The part contribute to the prior art or the part of the technical solution can be embodied in the form of software product, the meter
Calculation machine software product is stored in a storage medium, is used including some instructions so that a computer equipment (can be
People's computer, server or network equipment etc.) perform all or part of the steps of the method according to each embodiment of the present invention.
And aforementioned storage medium includes：USB flash disk, mobile hard disk, ROM, RAM, magnetic disc or CD etc. are various can to store program code
Medium.
The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can readily occur in change or replacement, should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (10)
- A kind of 1. light intensity sensing device, applied to the mobile terminal with processor and the first display screen, which is characterized in that packet The first optical sensor, the second optical sensor and second display screen are included,First optical sensor is located at below first display screen, and is set towards the display area of first display screen It puts, there is the corresponding light pickup area of first optical sensor in the display area, first optical sensor is used for Obtain the first light intensity value of the light pickup area；The second display screen is connected to the processor and in the mobile terminal, for the light pickup area Show identical content and brightness；Second optical sensor is located inside the mobile terminal, and is set towards the second display screen, for obtaining State the second light intensity value of the light that second display screen is sent out；The processor is connect respectively with first optical sensor and the second optical sensor, for according to first luminous intensity Value and second light intensity value determine the light intensity value of the first display screen local environment.
- 2. light intensity test device according to claim 1, which is characterized in that the mobile terminal further includes mainboard, described First display screen and the second display screen are located at the both sides of the mainboard respectively, and first optical sensor is located at the mainboard Towards the side of first display screen, second optical sensor is located at the mainboard towards the one of the second display screen Side.
- 3. light intensity sensing device according to claim 1 or 2, which is characterized in that first optical sensor and described Second optical sensor is identical optical sensor.
- 4. a kind of mobile terminal, which is characterized in that the mobile terminal includes such as claim 1-3 any one of them luminous intensities Detection device.
- A kind of 5. method of adjustment of brightness of display screen, applied to mobile terminal as claimed in claim 4, which is characterized in that institute The method of stating includes：First light intensity value is obtained by first optical sensor；The second light intensity value of the second display screen is obtained by second optical sensor, wherein, the second display screen Identical content and brightness are shown with the light pickup area；According to first light intensity value, the second light intensity value and default calibration factor, determine residing for first display screen The light intensity value of environment；According to the light intensity value of the first display screen local environment, the display brightness of first display screen is adjusted.
- 6. according to the method described in claim 5, it is characterized in that, the method further includes：Multiple calibration pictures are set, the multiple calibration picture includes multicolour and brightness；First display screen and the second display screen is driven to show the multiple calibration picture successively；When obtaining each calibration picture of display, the third light intensity value of the light pickup area of first display screen and described the 4th light intensity value of two display screens；Third light intensity value and the 4th light intensity value during calibration picture each according to display calculate the calibration of each calibration picture Coefficient obtains multiple calibration factors；The default calibration factor is determined according to the multiple calibration factor.
- 7. according to the method described in claim 6, it is characterized in that, described determine described preset according to the multiple calibration factor The step of calibration factor, includes：The calibration factor of maximum value and the calibration factor of minimum value are determined from the multiple calibration factor；The difference of the calibration factor of the maximum value and the calibration factor of minimum value is calculated, obtains calibration factor difference；Judge whether the calibration factor difference is less than default calibration error coefficient；In the case where the calibration factor difference is less than default calibration error coefficient, being averaged for the multiple calibration factor is calculated Value, obtains the default calibration factor；Otherwise the information of prompting calibration failure.
- It is 8. according to the method described in claim 5, it is characterized in that, described according to first light intensity value, the second luminous intensity The step of value and default calibration factor, the light intensity value for determining the first display screen local environment, includes：The product of second light intensity value and the default calibration factor is calculated, first display screen is obtained and luminous intensity is examined The luminous intensity interference value of survey；The difference of first light intensity value and the luminous intensity interference value is calculated, obtains the first display screen local environment Light intensity value.
- 9. the according to the method described in claim 5, it is characterized in that, light intensity according to the first display screen local environment The step of angle value, the display brightness for adjusting first display screen, includes：According to the light intensity value of the first display screen local environment, the object brightness grade of first display screen is determined；In the case where the current brightness level of the object brightness grade and first display screen is inconsistent, by described first The brightness degree of display screen is adjusted to the object brightness grade.
- 10. a kind of computer readable storage medium, which is characterized in that computer journey is stored on the computer readable storage medium Sequence realizes the tune of the brightness of display screen as described in any one of claim 5 to 9 when the computer program is executed by processor The step of adjusting method.
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