CN111754954A - Screen brightness adjusting method and device, storage medium and electronic equipment - Google Patents
Screen brightness adjusting method and device, storage medium and electronic equipment Download PDFInfo
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- CN111754954A CN111754954A CN202010664935.5A CN202010664935A CN111754954A CN 111754954 A CN111754954 A CN 111754954A CN 202010664935 A CN202010664935 A CN 202010664935A CN 111754954 A CN111754954 A CN 111754954A
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- 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
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
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Abstract
The application discloses a screen brightness adjusting method, a screen brightness adjusting device, a storage medium and electronic equipment, wherein the method comprises the following steps: setting an integral period of an ambient light sensor, acquiring original light sensation values detected by the ambient light sensor according to the integral period, calculating a difference value between two adjacent original light sensation values, judging whether the difference value is greater than a preset difference value, if so, acquiring the brightness of the current display screen, calculating a target light sensation value according to the brightness and the two adjacent original light sensation values, and adjusting the brightness of the display screen according to the target light sensation value. According to the embodiment of the application, the original light sensitivity values detected by the two adjacent ambient light sensors are obtained, and the target light sensitivity value is calculated when the difference value of the two original light sensitivity values is larger than the preset value, so that the accuracy of ambient light detection can be improved, and further the screen brightness adjustment is more accurate.
Description
Technical Field
The application belongs to the technical field of screen display, and particularly relates to a screen brightness adjusting method and device, a storage medium and an electronic device.
Background
The automatic backlight brightness adjustment means automatically adjusting the backlight brightness of the screen of the intelligent mobile terminal according to the brightness of the ambient light, so that the backlight brightness of the screen and the ambient light are in positive correlation, namely, the backlight brightness of the screen of the intelligent mobile terminal is reduced when the ambient light is dark, and the backlight brightness of the screen of the intelligent mobile terminal is increased when the ambient light is strong, so that the comfort degree of watching by human eyes is improved, and meanwhile, the effect of protecting the vision can be achieved.
With the technical progress of display construction and the pursuit of users for large screens, more and more electronic equipment with comprehensive screens appear, so that an under-screen light sensation technology is created, and an ambient light sensor in the under-screen light sensation technology is influenced by a screen during detection, so that the accuracy is influenced, and therefore, the technical problem to be solved at present is how to reduce the interference of screen factors on ambient light detection.
Disclosure of Invention
The application provides a screen brightness adjusting method and device, a storage medium and an electronic device, which can improve the accuracy of ambient light detection and further enable the screen brightness adjustment to be more accurate.
In a first aspect, an embodiment of the present application provides a screen brightness adjusting method, which is applied to an electronic device, where the electronic device includes a display screen and an ambient light sensor disposed in a display screen area, and includes:
setting an integration period of the ambient light sensor, and acquiring an original light sensitivity value detected by the ambient light sensor according to the integration period;
calculating a difference value between two adjacent original light sensitivity values, and judging whether the difference value is larger than a preset difference value or not;
if the brightness of the current display screen is larger than the preset brightness, acquiring the brightness of the current display screen and calculating a target light sensation value according to the brightness and the two adjacent original light sensation values;
and adjusting the brightness of the display screen according to the target light sensation value.
In a second aspect, an embodiment of the present application provides a screen brightness adjusting apparatus, which is applied to an electronic device, where the electronic device includes a display screen and an ambient light sensor disposed in a display screen area, and includes:
the detection module is used for setting an integration period of the ambient light sensor and acquiring an original light sensitivity value detected by the ambient light sensor according to the integration period;
the judging module is used for calculating a difference value between two adjacent original light sensitivity values and judging whether the difference value is larger than a preset difference value or not;
the calculating module is used for acquiring the brightness of the current display screen and calculating a target light sensation value according to the brightness and the two adjacent original light sensation values when the judging module judges that the brightness is positive;
and the adjusting module is used for adjusting the brightness of the display screen according to the target light sensation value.
In a third aspect, an embodiment of the present application provides a storage medium, on which a computer program is stored, which, when running on a computer, causes the computer to execute the above-mentioned screen brightness adjustment method.
In a fourth aspect, an embodiment of the present application provides an electronic device, including a processor, a memory, a display screen, and an ambient light sensor disposed in a region of the display screen, where the memory stores a plurality of instructions, and the processor loads the instructions in the memory to perform the following steps:
setting an integration period of the ambient light sensor, and acquiring an original light sensitivity value detected by the ambient light sensor according to the integration period;
calculating a difference value between two adjacent original light sensitivity values, and judging whether the difference value is larger than a preset difference value or not;
if the brightness of the current display screen is larger than the preset brightness, acquiring the brightness of the current display screen and calculating a target light sensation value according to the brightness and the two adjacent original light sensation values;
and adjusting the brightness of the display screen according to the target light sensation value.
The screen brightness adjusting method provided by the embodiment of the application can set an integral period of the ambient light sensor, obtain an original light sensation value detected by the ambient light sensor according to the integral period, calculate a difference value between two adjacent original light sensation values, and judge whether the difference value is greater than a preset difference value, if the difference value is greater than the preset difference value, obtain the brightness of the current display screen, calculate a target light sensation value according to the brightness and the two adjacent original light sensation values, and adjust the brightness of the display screen according to the target light sensation value. According to the embodiment of the application, the original light sensitivity values detected by the two adjacent ambient light sensors are obtained, and the target light sensitivity value is calculated when the difference value of the two original light sensitivity values is larger than the preset value, so that the accuracy of ambient light detection can be improved, and further the screen brightness adjustment is more accurate.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Fig. 2 is a schematic flowchart of a method for adjusting screen brightness according to an embodiment of the present disclosure.
Fig. 3 is another schematic flow chart of a screen brightness adjusting method according to an embodiment of the present application.
Fig. 4 is a schematic structural diagram of a screen brightness adjusting device according to an embodiment of the present application.
Fig. 5 is another schematic structural diagram of a screen brightness adjusting device according to an embodiment of the present application.
Fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Fig. 7 is another schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
Referring to the drawings, wherein like reference numbers refer to like elements, the principles of the present application are illustrated as being implemented in a suitable computing environment. The following description is based on illustrated embodiments of the application and should not be taken as limiting the application with respect to other embodiments that are not detailed herein.
In the description that follows, specific embodiments of the present application will be described with reference to steps and symbols executed by one or more computers, unless otherwise indicated. Accordingly, these steps and operations will be referred to, several times, as being performed by a computer, the computer performing operations involving a processing unit of the computer in electronic signals representing data in a structured form. This operation transforms the data or maintains it at locations in the computer's memory system, which may be reconfigured or otherwise altered in a manner well known to those skilled in the art. The data maintains a data structure that is a physical location of the memory that has particular characteristics defined by the data format. However, while the principles of the application have been described in language specific to above, it is not intended to be limited to the specific form set forth herein, and it will be recognized by those of ordinary skill in the art that various of the steps and operations described below may be implemented in hardware.
The terms "first", "second", and "third", etc. in this application are used to distinguish between different objects and not to describe a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or modules is not limited to only those steps or modules listed, but rather, some embodiments may include other steps or modules not listed or inherent to such process, method, article, or apparatus.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an electronic device 100 according to an embodiment of the present disclosure.
The electronic device 100 includes a display screen 10, a housing 20, and an ambient light sensor 30.
The display screen 10 is disposed on the casing 20 to form a display surface of the electronic device 100 for displaying images, texts, and other information. The Display screen 10 may include a Liquid Crystal Display (LCD) or an Organic Light-Emitting Diode (OLED) Display screen.
It will be appreciated that the display screen 10 may include a display surface and a non-display surface opposite the display surface. The display surface is a surface of the display screen 10 facing a user, i.e. a surface of the display screen 10 visible to a user on the electronic device 100. The non-display surface is a surface of the display screen 10 facing the inside of the electronic device 100. The display surface is used for displaying information, and the non-display surface does not display information.
It will be appreciated that a cover plate may also be provided over the display screen 10 to protect the display screen 10 from scratching or water damage. The cover plate may be a transparent glass cover plate, so that a user can observe contents displayed on the display screen 10 through the cover plate. It will be appreciated that the cover plate may be a glass cover plate of sapphire material.
The housing 20 is used to form an outer contour of the electronic apparatus 100 so as to accommodate electronic devices, functional components, and the like of the electronic apparatus 100, while forming a sealing and protecting function for the electronic devices and functional components inside the electronic apparatus. For example, the camera, the circuit board, and the vibration motor of the electronic device 100 may be disposed inside the housing 20. It will be appreciated that the housing 20 may include a center frame and a battery cover.
The ambient light sensor 30 is arranged below the display screen 10 and the ambient light sensor 30 is located in the display area of the display screen 10. The ambient light sensor 30 may be formed by one or more photodiodes, and the photodiodes detect ambient light intensity outside, and then obtain a current light intensity value after electrical signal amplification and ADC (digital-to-analog converter) conversion.
A circuit board and a battery may also be disposed inside the electronic device 100. For example, the circuit board may be mounted on a middle frame of the case 20 to be fixed and sealed inside the electronic device by a battery cover. The circuit board may be a main board of the electronic device 100, and one or more functional components such as a processor, a camera, an earphone interface, an acceleration sensor, a gyroscope, and a motor may be further integrated on the circuit board. The battery may be mounted on the middle frame of the case 20 to be fixed and sealed inside the electronic device by a battery cover. Meanwhile, the battery is electrically connected to the circuit board to enable the battery to power the electronic device 100.
Referring to fig. 2, fig. 2 is a schematic flow chart of a method for adjusting screen brightness according to an embodiment of the present disclosure. The screen brightness adjusting method provided by the embodiment of the application is applied to electronic equipment, and the specific flow can be as follows:
step 101, setting an integration period of an ambient light sensor, and acquiring an original light sensitivity value detected by the ambient light sensor according to the integration period.
In the embodiment of the present application, the original light sensitivity value detected by the ambient light sensor is affected by the screen, and mainly includes factors such as the brightness of the screen and the color of the screen. The relationship between the real target light sensitivity value and the original light sensitivity value is as follows:
Count＝ALS+Level*Color
the Count is an original light sensitivity value detected by an ambient light sensor, namely a numerical value directly detected by the sensor, the ALS is real ambient light, namely a target light sensitivity value, the Level is a numerical value contributed by the screen to the device, and the Color is a Color currently displayed by the screen.
In an embodiment, an integration period of the ambient light sensor may be set first, where the integration period of the ambient light sensor refers to a reporting rate at which the ambient light sensor reports collected ambient light data to each application program on an upper layer, and then an original light sensing value detected by the ambient light sensor is obtained according to the set integration period. The integration period of the ambient light sensor needs to be set to be small, for example, 10ms or 5ms, so as to ensure that the color of the screen and the real target light sensitivity value are unchanged when two consecutive original light sensitivity values are detected by the sensor. For example, a smaller preset time period may be set, and the integration period of the ambient light sensor may be set to be smaller than the preset time period.
Specifically, the raw light sensation value may be raw data detected by an ambient light sensor, and the sensor periodically obtains the raw data according to a preset integration period and reports the raw data to a processor of the electronic device.
It should be noted that the screen brightness adjusting method provided in the embodiment of the present application can be applied to display screens with various dimming modes, such as PWM dimming and DC dimming. The method for adjusting the brightness of the screen in any dimming mode is to adjust the brightness of the screen by inserting black bars into the screen, that is, the black bars are refreshed in the screen according to a certain frequency, the pixel points corresponding to the screen area where the black bars are located are extinguished or the brightness is reduced, and the screen areas other than the black bars are lightened or have normal brightness. The effect of adjusting the whole brightness of the screen can be achieved by adjusting and refreshing the size or frequency of the black bars. Therefore, when the ambient light sensor detects the light sensation value, the detected light sensation value changes due to the fact that whether the black stripes pass through the corresponding area of the ambient light sensor or not.
In the embodiment of the present application, since a small integration period is set for the ambient light sensor in step 101, the two adjacent raw light sensation values can be regarded as being continuously obtained without changing the screen color and brightness and the real target light sensation value. Further, if it is determined that the difference between two adjacent original light sensitivity values is greater than the preset difference, the two original light sensitivity values are considered to be obtained under the condition that the black bar passes through and the black bar does not pass through the area corresponding to the sensor, and step 103 is further performed. If the difference between the two adjacent original light sensitivity values is not greater than the preset difference, it can be seen that the two original light sensitivity values are both obtained when a black bar passes through or does not pass through the area corresponding to the sensor, so that the two data cannot reflect error interference caused by the fact that no black bar passes through on the sensor, and the step 101 can be continuously executed to continuously obtain the original light sensitivity value detected by the ambient light sensor.
The preset difference may be set to be greater than a jitter value of the ambient light sensor, because the sensor itself has jitter, and in order to eliminate the jitter influence of the device itself, the preset difference may be set to be greater than the jitter value of the sensor. In addition, the preset difference value needs to be set to be smaller than a value, that is, a difference between data detected when the sensor region passes through the black bar and data detected when the sensor region does not pass through the black bar.
In one embodiment, the ambient light sensor periodically acquires the detected raw light sensitivity values and calculates the difference between two adjacent raw light sensitivity values. For example, each time an original sensitivity value is detected, the difference between the sensitivity value and the last detected sensitivity value is calculated. Further, in order to reduce the calculation amount, when an original light sensation value is detected, it may be determined whether the original light sensation value changes, that is, whether the light sensation value is the same as the last detected value, if the light sensation value is the same as the last detected value, a difference value does not need to be calculated, the original light sensation value detected by the ambient light sensor is continuously obtained, and if the light sensation value is not the same as the last detected value, a difference value between the light sensation value and the last detected value may be further calculated, and it is determined whether the difference value is greater than a preset difference value. That is, the step of calculating the difference between two adjacent original light sensitivity values and determining whether the difference is greater than a preset difference includes:
judging whether the original light sensitivity value detected by the ambient light sensor is the same as the original light sensitivity value detected last time;
if the difference value is not the same as the original light sensitivity value, calculating the difference value between the original light sensitivity value and the original light sensitivity value detected last time, and judging whether the difference value is larger than a preset difference value or not.
And 103, acquiring the brightness of the current display screen and calculating a target light sensation value according to the brightness and the two adjacent original light sensation values.
It should be noted that the brightness of the current display screen is not equal to the current basic brightness of the display screen, but refers to the Count value contributed by the display screen to the ambient light sensor. The number of the pixels needs to be calculated according to the basic brightness of the display screen and the number of the lighting pixel points in the corresponding area of the sensor. In the embodiment of the present application, the Level may be represented, for example, the Level1 may be represented as the brightness of the display screen when the area corresponding to the sensor has a black bar, and for example, the Level2 may be represented as the brightness of the display screen when the area corresponding to the sensor does not have a black bar.
Further, the two adjacent raw photo-sensitive values may be represented by Count1 and Count2, for example, Count1 represents the value detected by the sensor when the sensor corresponding region has a black bar, and Count2 represents the value detected by the sensor when the sensor corresponding region does not have a black bar. Count1 and Count2 can be expressed as:
Count1＝ALS+Level1*Color；
Count2＝ALS+Level2*Color。
since ALS and Color in the above two equations can be considered unchanged in the case of a short integration period of the sensor, ALS, i.e., the true target light sensitivity value, can be calculated by the above two equations:
ALS＝(Level2*Count1-Level1*Count2)/(Level2-Level1)
the target light sensitivity value obtained through the calculation can eliminate the error influence caused by the existence of the black bars in the area corresponding to the ambient light sensor area, so that the accuracy of detecting the light sensitivity value is greatly improved. The calculation method in the application can be applied to various dimming modes such as DC and PWM, and is more widely applied.
And 104, adjusting the brightness of the display screen according to the target light sensation value.
And after the target light sensation value is obtained, the brightness of the display screen can be adjusted according to the target light sensation value. Specifically, the electronic device may preset a mapping relationship between the target light sensation value and the brightness value, so that after the target light sensation value is determined, the target brightness value corresponding to the target light sensation value is determined according to the mapping relationship, and backlight brightness adjustment is performed according to the target brightness value. In fact, the brightness value of the screen can be the basic brightness of the display screen.
In an embodiment, after the target light sensitivity value is calculated, the target light sensitivity value may be further smoothed, and the smoothed value is reported to the processor, so that the processor correspondingly adjusts the brightness of the display screen.
Further, it is considered that the user has different brightness usage habits when using different applications. Therefore, after the brightness value corresponding to the target light sensation value is determined in the corresponding relationship, the application program currently running by the electronic device can be further acquired, a brightness compensation value is generated according to the application program, and the final brightness of the display screen is set according to the brightness value corresponding to the target light sensation value and the brightness compensation value. Wherein the brightness compensation value may be positive (increasing based on the brightness value corresponding to the target light sensitivity value) or negative (decreasing based on the brightness value corresponding to the target light sensitivity value).
As can be seen from the above, the screen brightness adjusting method provided in the embodiment of the present application can set an integration period of the ambient light sensor, obtain the original light sensation value detected by the ambient light sensor according to the integration period, calculate the difference between two adjacent original light sensation values, and determine whether the difference is greater than a preset difference, if so, obtain the brightness of the current display screen, calculate the target light sensation value according to the brightness and the two adjacent original light sensation values, and adjust the brightness of the display screen according to the target light sensation value. According to the embodiment of the application, the original light sensitivity values detected by the two adjacent ambient light sensors are obtained, and the target light sensitivity value is calculated when the difference value of the two original light sensitivity values is larger than the preset value, so that the accuracy of ambient light detection can be improved, and further the screen brightness adjustment is more accurate.
The screen brightness adjusting method of the present application will be further described below on the basis of the method described in the above embodiment. Referring to fig. 3, fig. 3 is another schematic flow chart diagram of a screen brightness adjusting method according to an embodiment of the present application, where the screen brightness adjusting method includes:
In one embodiment, an integration period of the ambient light sensor may be set, and then a raw light sensitivity value detected by the ambient light sensor may be obtained according to the set integration period. The integration period of the ambient light sensor needs to be set to be small, for example, 10ms or 5ms, so as to ensure that the color of the screen and the real target light sensitivity value are unchanged when two consecutive original light sensitivity values are detected by the sensor.
In the embodiment of the present application, since a small integration period is set for the ambient light sensor in step 201, the two adjacent raw light sensation values can be regarded as being continuously obtained without changing the screen color and brightness and the real target light sensation value. Further, if it is determined that the difference between the two adjacent original light sensitivity values is greater than the preset difference, the two original light sensitivity values are considered to be obtained under the condition that the black bar passes through and the black bar does not pass through the area corresponding to the sensor, and step 203 is further performed. If the difference between two adjacent original light sensitivity values is not greater than the preset difference, step 201 may be continuously performed to continuously obtain the original light sensitivity value detected by the ambient light sensor.
In the embodiment of the present application, the basic brightness is a basic brightness value set for a pixel in a display screen without considering whether the display screen has a black bar refresh or not, a black bar size, and the like.
And 204, determining a display screen area corresponding to the ambient light sensor, and acquiring a dimming parameter of the display screen.
In an embodiment, since the ambient light needs to pass through the display screen to collect the value of the external ambient light, the display screen undoubtedly may interfere with the measurement of the light sensitivity value, and whether there is a black bar in the display screen may further interfere with the measurement of the light sensitivity value, so that the number of the lighted pixels in the display screen region corresponding to the ambient light sensor may be further obtained in this embodiment. In order to calculate the number of the above-mentioned lighted pixels, it is necessary to acquire a display screen region corresponding to the ambient light sensor and acquire a dimming parameter of the display screen, where the dimming parameter may include information such as a frequency of refreshing the black bars and a size of the black bars, and further description is not repeated in this application.
Further, after the display screen area corresponding to the ambient light sensor is obtained, the number of the lighted pixels in the area can be further calculated according to the dimming parameter. For example, there are 100 rows of pixels in the area, each row includes 10000 pixels, and when there is no black bar brushing, the lighted pixels in the area are all pixels, that is, 1000000 pixels. When a black bar is brushed, if the black bar occupies 16 rows of pixel points in the area, that is, 16 rows of pixel points are in an off state (or in a low-brightness state), so that the number of the pixel points lighted in the area is calculated to be 840000. That is, the step of calculating the number of the lighted pixels according to the dimming parameter and the plurality of pixels in the display screen area includes:
determining size information of a refreshed black bar area in the display screen according to the dimming parameter;
and calculating the number of the lighted pixel points in the display screen area according to the size information of the black bar area.
And step 206, calculating the brightness of the display screen according to the number of the lightened pixel points and the basic brightness.
In one embodiment, the brightness of the current display screen refers to a Count value contributed by the display screen to the ambient light sensor. The number of the pixels needs to be calculated according to the basic brightness of the display screen and the number of the lighting pixel points in the corresponding area of the sensor. For example, Level1 may be expressed as the brightness of the display screen when the area corresponding to the sensor has black bars, and Level2 may be expressed as the brightness of the display screen when the area corresponding to the sensor does not have black bars. And Count1 represents the value detected by the sensor when the sensor corresponding region has a black bar, and Count2 represents the value detected by the sensor when the sensor corresponding region does not have a black bar. Count1 and Count2 can be expressed as:
Count1＝ALS+Level1*Color；Count2＝ALS+Level2*Color。
since ALS and Color in the above two equations can be considered unchanged in the case of a short integration period of the sensor, ALS, i.e., the true target light sensitivity value, can be calculated by the above two equations:
ALS＝(Level2*Count1-Level1*Count2)/(Level2-Level1)
further, the above-mentioned Level1 and Level2 can be calculated by the following formulas:
Level1＝Hi*L(1-16/N)；Level2＝Hi*L
where Hi represents the number of pixels lit up in a segment of the same pixel area, each row has 16 pixels, and N is the total number of rows. In calculating ALS, level1 and level2 may be interpreted as intermediate variables, i.e., the Count value that the screen brightness contributes to the device. The target light sensitivity value obtained through the calculation can eliminate the error influence caused by the existence of the black bars in the area corresponding to the ambient light sensor area, so that the accuracy of detecting the light sensitivity value is greatly improved.
And step 207, calculating a target light sensation value according to the brightness and the two adjacent original light sensation values, and adjusting the brightness of the display screen according to the target light sensation value.
And after the target light sensation value is obtained, the brightness of the display screen can be adjusted according to the target light sensation value. Specifically, the electronic device may preset a mapping relationship between the target light sensation value and the brightness value, so that after the target light sensation value is determined, the target brightness value corresponding to the target light sensation value is determined according to the mapping relationship, and backlight brightness adjustment is performed according to the target brightness value. In fact, the brightness value of the screen can be the basic brightness of the display screen.
As can be seen from the above, the screen brightness adjusting method provided in this application embodiment can set an integration period of the ambient light sensor, obtain an original light sensation value detected by the ambient light sensor according to the integration period, calculate a difference between two adjacent original light sensation values, and determine whether the difference is greater than a preset difference, if so, obtain a basic brightness of the current display screen, determine a display screen region corresponding to the ambient light sensor, obtain a dimming parameter of the display screen, calculate the number of lit pixel points according to the dimming parameter and a plurality of pixel points in the display screen region, calculate a brightness of the display screen according to the number of lit pixel points and the basic brightness, calculate a target light sensation value according to the brightness and the two adjacent original light sensation values, and adjust the brightness of the display screen according to the target light sensation value. According to the embodiment of the application, the original light sensitivity values detected by the two adjacent ambient light sensors are obtained, and the target light sensitivity value is calculated when the difference value of the two original light sensitivity values is larger than the preset value, so that the accuracy of ambient light detection can be improved, and further the screen brightness adjustment is more accurate.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a screen brightness adjusting device according to an embodiment of the present disclosure. The screen brightness adjusting device 30 is applied to an electronic device, the electronic device includes a display screen and an ambient light sensor arranged in a display screen area, and the screen brightness adjusting device 30 includes:
the detection module 301 is configured to set an integration period of the ambient light sensor, and obtain an original light sensitivity value detected by the ambient light sensor according to the integration period;
a determining module 302, configured to calculate a difference between two adjacent original light sensitivity values, and determine whether the difference is greater than a preset difference;
a calculating module 303, configured to, when the determining module 302 determines that the current display screen is a video screen, obtain brightness of the current display screen and calculate a target light sensation value according to the brightness and the two adjacent original light sensation values;
and the adjusting module 304 is configured to adjust the brightness of the display screen according to the target light sensation value.
In an embodiment, referring to fig. 5, in this embodiment, the calculating module 303 may include:
the first obtaining submodule 3031 is used for obtaining the basic brightness of the current display screen;
a second obtaining submodule 3032, configured to determine a display screen region corresponding to the ambient light sensor, and obtain the number of lighted pixels in a plurality of pixels in the display screen region;
and the calculating submodule 3033 is configured to calculate the brightness of the display screen according to the number of the lighted pixel points and the basic brightness.
In one embodiment, the determining module 302 may include:
a first determining submodule 3021, configured to determine whether an original light sensitivity value detected by the ambient light sensor is the same as a last detected original light sensitivity value;
a second judging submodule 3022, configured to, when the first judging submodule 3021 judges that the original light sensation value is not the same, calculate a difference between the original light sensation value and the original light sensation value detected last time, and judge whether the difference is greater than a preset difference.
As can be seen from the above, the screen brightness adjusting device 30 in the embodiment of the present application can set the integration period of the ambient light sensor, obtain the original light sensation value detected by the ambient light sensor according to the integration period, calculate the difference between two adjacent original light sensation values, and determine whether the difference is greater than the preset difference, if so, obtain the brightness of the current display screen, calculate the target light sensation value according to the brightness and the two adjacent original light sensation values, and adjust the brightness of the display screen according to the target light sensation value. According to the embodiment of the application, the original light sensitivity values detected by the two adjacent ambient light sensors are obtained, and the target light sensitivity value is calculated when the difference value of the two original light sensitivity values is larger than the preset value, so that the accuracy of ambient light detection can be improved, and further the screen brightness adjustment is more accurate.
In the embodiment of the present application, the screen brightness adjusting apparatus and the screen brightness adjusting method in the foregoing embodiment belong to the same concept, and any method provided in the screen brightness adjusting method embodiment may be run on the screen brightness adjusting apparatus, and a specific implementation process thereof is described in detail in the embodiment of the screen brightness adjusting method, and is not described herein again.
The term "module" as used herein may be considered a software object executing on the computing system. The different components, modules, engines, and services described herein may be considered as implementation objects on the computing system. The apparatus and method described herein may be implemented in software, but may also be implemented in hardware, and are within the scope of the present application.
The embodiment of the present application further provides a storage medium, on which a computer program is stored, and when the computer program runs on a computer, the computer is caused to execute the above-mentioned screen brightness adjusting method.
The embodiment of the application further provides an electronic device, which comprises a processor, a memory, a display screen and an ambient light sensor arranged in the display screen area, wherein the memory stores a plurality of instructions, such as a tablet computer, a mobile phone and the like. The processor in the electronic device loads instructions corresponding to processes of one or more application programs into the memory according to the following steps, and the processor runs the application programs stored in the memory, so that various functions are realized:
setting an integration period of the ambient light sensor, and acquiring an original light sensitivity value detected by the ambient light sensor according to the integration period;
calculating a difference value between two adjacent original light sensitivity values, and judging whether the difference value is larger than a preset difference value or not;
if the brightness of the current display screen is larger than the preset brightness, acquiring the brightness of the current display screen and calculating a target light sensation value according to the brightness and the two adjacent original light sensation values;
and adjusting the brightness of the display screen according to the target light sensation value.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Referring to fig. 6, the electronic device 400 includes a processor 401 and a memory 402. The processor 401 is electrically connected to the memory 402.
The processor 400 is a control center of the electronic device 400, connects various parts of the entire electronic device using various interfaces and lines, performs various functions of the electronic device 400 by running or loading a computer program stored in the memory 402 and calling data stored in the memory 402, and processes the data, thereby monitoring the electronic device 400 as a whole.
The memory 402 may be used to store software programs and modules, and the processor 401 executes various functional applications and data processing by operating the computer programs and modules stored in the memory 402. The memory 402 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, a computer program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data created according to use of the electronic device, and the like. Further, the memory 402 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device. Accordingly, the memory 402 may also include a memory controller to provide the processor 401 access to the memory 402.
In this embodiment, the processor 401 in the electronic device 400 loads instructions corresponding to one or more processes of the computer program into the memory 402 according to the following steps, and the processor 401 runs the computer program stored in the memory 402, so as to implement various functions, as follows:
setting an integration period of the ambient light sensor, and acquiring an original light sensitivity value detected by the ambient light sensor according to the integration period;
calculating a difference value between two adjacent original light sensitivity values, and judging whether the difference value is larger than a preset difference value or not;
if the brightness of the current display screen is larger than the preset brightness, acquiring the brightness of the current display screen and calculating a target light sensation value according to the brightness and the two adjacent original light sensation values;
and adjusting the brightness of the display screen according to the target light sensation value.
Referring also to fig. 7, in some embodiments, the electronic device 400 may further include: a display 403, radio frequency circuitry 404, audio circuitry 405, and a power supply 406. The display 403, the rf circuit 404, the audio circuit 405, and the power source 406 are electrically connected to the processor 401.
The display 403 may be used to display information entered by or provided to the user as well as various graphical user interfaces, which may be made up of graphics, text, icons, video, and any combination thereof. The Display 403 may include a Display panel, and in some embodiments, the Display panel may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.
The rf circuit 404 may be used for transceiving rf signals to establish wireless communication with a network device or other electronic devices through wireless communication, and for transceiving signals with the network device or other electronic devices. In general, radio frequency circuit 501 includes, but is not limited to, an antenna, at least one Amplifier, a tuner, one or more oscillators, a Subscriber Identity Module (SIM) card, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like.
The audio circuit 405 may be used to provide an audio interface between the user and the electronic device through a speaker, microphone. The audio circuit 506 may convert the received audio data into an electrical signal, transmit the electrical signal to a speaker, and convert the electrical signal to an audio signal for output by the speaker.
The power supply 406 may be used to power various components of the electronic device 400. In some embodiments, power supply 406 may be logically coupled to processor 401 via a power management system, such that functions to manage charging, discharging, and power consumption management are performed via the power management system. The power supply 406 may also include any component of one or more dc or ac power sources, recharging systems, power failure detection circuitry, power converters or inverters, power status indicators, and the like.
Although not shown in fig. 7, the electronic device 400 may further include a camera, a bluetooth module, and the like, which are not described in detail herein.
In the embodiment of the present application, the storage medium may be a magnetic disk, an optical disk, a Read Only Memory (ROM), a Random Access Memory (RAM), or the like.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
It should be noted that, for the screen brightness adjusting method of the embodiment of the present application, it can be understood by a person skilled in the art that all or part of the process for implementing the screen brightness adjusting method of the embodiment of the present application can be completed by controlling the related hardware through a computer program, the computer program can be stored in a computer readable storage medium, such as a memory of an electronic device, and executed by at least one processor in the electronic device, and the process of executing the computer program can include the process of the embodiment of the screen brightness adjusting method. The storage medium may be a magnetic disk, an optical disk, a read-only memory, a random access memory, etc.
For the screen brightness adjusting device of the embodiment of the application, each functional module may be integrated in one processing chip, or each module may exist alone physically, or two or more modules are integrated in one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium, such as a read-only memory, a magnetic or optical disk, or the like.
The screen brightness adjusting method, device, storage medium and electronic device provided by the embodiments of the present application are described in detail above, and a specific example is applied in the present application to explain the principle and the implementation of the present application, and the description of the above embodiments is only used to help understand the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. A screen brightness adjusting method is applied to electronic equipment, the electronic equipment comprises a display screen and an ambient light sensor arranged in the area of the display screen, and the method is characterized by comprising the following steps:
setting an integration period of the ambient light sensor, and acquiring an original light sensitivity value detected by the ambient light sensor according to the integration period;
calculating a difference value between two adjacent original light sensitivity values, and judging whether the difference value is larger than a preset difference value or not;
if the brightness of the current display screen is larger than the preset brightness, acquiring the brightness of the current display screen and calculating a target light sensation value according to the brightness and the two adjacent original light sensation values;
and adjusting the brightness of the display screen according to the target light sensation value.
2. The screen brightness adjustment method according to claim 1, the step of obtaining the brightness of the current display screen comprising:
acquiring basic brightness of a current display screen;
determining a display screen area corresponding to the ambient light sensor, and acquiring the number of lighted pixels in a plurality of pixels in the display screen area;
and calculating the brightness of the display screen according to the number of the lightened pixel points and the basic brightness.
3. The method of claim 2, wherein the step of obtaining the number of lighted pixels among the plurality of pixels in the display screen area comprises:
acquiring dimming parameters of the display screen;
and calculating the number of the lightened pixel points according to the dimming parameter and the plurality of pixel points in the display screen area.
4. The method of claim 3, wherein the step of calculating the number of lighted pixels according to the dimming parameter and the plurality of pixels in the display screen area comprises:
determining size information of a refreshed black bar area in the display screen according to the dimming parameter;
and calculating the number of the lighted pixel points in the display screen area according to the size information of the black bar area.
5. The method of claim 1, wherein the step of calculating a difference between two adjacent original light sensitivity values and determining whether the difference is greater than a preset difference comprises:
judging whether the original light sensitivity value detected by the ambient light sensor is the same as the original light sensitivity value detected last time;
if the difference value is not the same as the original light sensitivity value, calculating the difference value between the original light sensitivity value and the original light sensitivity value detected last time, and judging whether the difference value is larger than a preset difference value or not.
6. A screen brightness adjusting device is applied to electronic equipment, the electronic equipment comprises a display screen and an ambient light sensor arranged in the area of the display screen, and the device is characterized by comprising:
the detection module is used for setting an integration period of the ambient light sensor and acquiring an original light sensitivity value detected by the ambient light sensor according to the integration period;
the judging module is used for calculating a difference value between two adjacent original light sensitivity values and judging whether the difference value is larger than a preset difference value or not;
the calculating module is used for acquiring the brightness of the current display screen and calculating a target light sensation value according to the brightness and the two adjacent original light sensation values when the judging module judges that the brightness is positive;
and the adjusting module is used for adjusting the brightness of the display screen according to the target light sensation value.
7. The screen brightness adjustment device of claim 6, wherein the calculation module comprises:
the first obtaining submodule is used for obtaining the basic brightness of the current display screen;
the second obtaining submodule is used for determining a display screen area corresponding to the ambient light sensor and obtaining the number of lightened pixel points in a plurality of pixel points in the display screen area;
and the calculating submodule is used for calculating the brightness of the display screen according to the number of the lightened pixel points and the basic brightness.
8. The screen brightness adjusting apparatus according to claim 6, wherein the judging module comprises:
the first judgment submodule is used for judging whether the original light sensitivity value detected by the ambient light sensor is the same as the original light sensitivity value detected last time;
and the second judgment submodule is used for calculating the difference value between the original light sensation value and the original light sensation value detected last time and judging whether the difference value is larger than a preset difference value or not when the first judgment submodule judges that the difference value is not larger than the preset difference value.
9. A storage medium having stored thereon a computer program, characterized in that when the computer program runs on a computer, it causes the computer to execute the screen brightness adjustment method according to any one of claims 1 to 5.
10. An electronic device comprising a processor, a memory, a display screen, and an ambient light sensor disposed in an area of the display screen, the memory storing a plurality of instructions, wherein the instructions in the memory are loaded by the processor for performing the following steps:
setting an integration period of the ambient light sensor, and acquiring an original light sensitivity value detected by the ambient light sensor according to the integration period;
calculating a difference value between two adjacent original light sensitivity values, and judging whether the difference value is larger than a preset difference value or not;
if the brightness of the current display screen is larger than the preset brightness, acquiring the brightness of the current display screen and calculating a target light sensation value according to the brightness and the two adjacent original light sensation values;
and adjusting the brightness of the display screen according to the target light sensation value.
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