CN108494974B - Display brightness adjusting method, mobile terminal and storage medium - Google Patents
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- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
- H04M1/72454—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to context-related or environment-related conditions
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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
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Abstract
The application discloses a method and related equipment for adjusting display brightness, which are applied to an AOD mode, wherein the method comprises the following steps: obtaining the brightness of the environment; determining target display brightness corresponding to the ambient light brightness; and adjusting the brightness of the display content displayed in the display screen according to the target display brightness. By adopting the embodiment of the application, the display brightness can be adaptively adjusted in the AOD mode.
Description
Technical Field
The present application relates to the field of electronic technologies, and in particular, to a method for adjusting display brightness, a mobile terminal, and a storage medium.
Background
With the rapid development and the increasing popularity of the technology of the intelligent terminal (such as a smart phone), the technology of the intelligent terminal is now an indispensable electronic product in the daily life of users. At present, an intelligent terminal is in an Always On Display (AOD) mode, and because a display screen is in a low power consumption state, the backlight brightness of the display screen is fixed, so that the requirements of a user in different environments are difficult to meet.
Disclosure of Invention
The embodiment of the application provides a display brightness adjusting method, a mobile terminal and a storage medium, which are used for adaptively adjusting display brightness in an AOD mode.
In a first aspect, an embodiment of the present application provides a method for adjusting display brightness, including:
obtaining the brightness of the environment;
determining target display brightness corresponding to the ambient light brightness;
and adjusting the brightness of the display content displayed in the display screen according to the target display brightness.
In a second aspect, an embodiment of the present application provides a mobile terminal, which is applied to an AOD mode, where the mobile terminal includes an obtaining unit, a determining unit, and an adjusting unit, where:
the acquisition unit is used for acquiring the brightness of the ambient light;
the determining unit is used for determining target display brightness corresponding to the ambient light brightness;
and the adjusting unit is used for adjusting the brightness of the display content displayed in the display screen according to the target display brightness.
In a third aspect, embodiments of the present application provide a terminal device, including one or more processors, one or more memories, one or more transceivers, and one or more programs stored in the memories and configured to be executed by the one or more processors, the programs including instructions for performing the steps in the method according to the first aspect.
In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium storing a computer program for electronic data exchange, wherein the computer program causes a computer to execute the method according to the first aspect.
In a fifth aspect, embodiments of the present application provide a computer program product comprising a non-transitory computer readable storage medium storing a computer program operable to cause a computer to perform a method according to the first aspect.
In the embodiment of the application, in the AOD mode, the mobile terminal determines a target display brightness corresponding to the ambient light brightness, and then adjusts the brightness of the display content based on the target display brightness. Therefore, under the condition that the backlight brightness of the display screen is not adjustable, the brightness of the display content is adjusted to achieve self-adaptive adjustment of the display brightness.
These and other aspects of the present application will be more readily apparent from the following description of the embodiments.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a mobile terminal according to an embodiment of the present application;
fig. 2 is a schematic flowchart of a method for adjusting display brightness according to an embodiment of the present disclosure;
fig. 3 is a schematic display diagram of a mobile terminal in AOD mode according to an embodiment of the present application;
fig. 4 is a schematic flowchart of another method for adjusting display brightness according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of another mobile terminal provided in an embodiment of the present application;
fig. 6 is a schematic structural diagram of another mobile terminal according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The following are detailed below.
The terms "first," "second," "third," and "fourth," etc. in the description and claims of this application and in the accompanying drawings are used for distinguishing between different objects and not for describing 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 elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
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.
A mobile terminal, also referred to as a User Equipment (UE), is a device that provides voice and/or data connectivity to a User, such as a handheld device with an unlimited connection function, a vehicle-mounted device, and so on. Common terminals include, for example: the mobile phone includes a mobile phone, a tablet computer, a notebook computer, a palm computer, a Mobile Internet Device (MID), and a wearable device such as a smart watch, a smart bracelet, a pedometer, and the like.
Referring to fig. 1, fig. 1 is a block diagram illustrating a partial structure of a mobile phone related to a mobile terminal according to an embodiment of the present disclosure. Referring to fig. 1, the cellular phone includes: a Radio Frequency (RF) circuit 110, a memory 120, an input unit 130, a display unit 140, a sensor 150, an audio circuit 160, a Wireless Fidelity (WiFi) module 170, a processor 180, and a power supply 190. Those skilled in the art will appreciate that the handset configuration shown in fig. 1 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
The following describes each component of the mobile phone in detail with reference to fig. 1:
the RF circuitry 110 may be used for the reception and transmission of information. In general, the RF circuit 110 includes, but is not limited to, an antenna, at least one Amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, the RF circuitry 110 may also communicate with networks and other devices via wireless communications. The wireless communication may use any communication standard or protocol, including but not limited to Global System for Mobile communication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), email, Short Messaging Service (SMS), and the like.
The memory 120 may be used to store software programs and modules, and the processor 180 executes various functional applications and data processing of the mobile phone by operating the software programs and modules stored in the memory 120. The memory 120 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function, and the like; the storage data area may store data created according to the use of the mobile phone, and the like. Further, the memory 120 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.
The input unit 130 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the cellular phone. Specifically, the input unit 130 may include a fingerprint recognition module 131 and other input devices 132. Fingerprint identification module 131 can gather the fingerprint data of user above that. In addition to the fingerprint recognition module 131, the input unit 130 may further include other input devices 132. In particular, other input devices 132 may include, but are not limited to, one or more of a touch screen, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like.
The display unit 140 may be used to display information input by a user or information provided to the user and various menus of the mobile phone. The Display unit 140 may include a Display screen 141, and optionally, the Display screen 141 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), an Active Matrix Organic Light-Emitting Diode (AMOLED), or the like.
The handset may also include at least one sensor 150, such as a light sensor, motion sensor, pressure sensor, acceleration sensor, gyroscope, temperature sensor, and other sensors. In particular, the light-sensing sensors may include an ambient light sensor (also referred to as a light sensor) and a proximity sensor. The light sensor can detect ambient light to determine whether the mobile phone is in a dark-vision environment, and the proximity sensor can turn off the display screen 141 and/or the backlight when the mobile phone moves to the ear. As one type of motion sensor, an accelerometer sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when stationary, and can be used for applications (such as horizontal and vertical screen switching, magnetometer attitude calibration), vibration recognition related functions (such as pedometer and tapping) and the like for recognizing the attitude of a mobile phone; as for other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured on the mobile phone, further description is omitted here.
WiFi belongs to short-distance wireless transmission technology, and the mobile phone can help a user to receive and send e-mails, browse webpages, access streaming media and the like through the WiFi module 170, and provides wireless broadband Internet access for the user. Although fig. 1 shows the WiFi module 170, it is understood that it does not belong to the essential constitution of the handset, and may be omitted entirely as needed within the scope not changing the essence of the invention.
The processor 180 is a control center of the mobile phone, connects various parts of the entire mobile phone by using various interfaces and lines, and performs various functions of the mobile phone and processes data by operating or executing software programs and/or modules stored in the memory 120 and calling data stored in the memory 120, thereby integrally monitoring the mobile phone. Alternatively, processor 180 may include one or more processing units; preferably, the processor 180 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 180.
The handset also includes a power supply 110 (e.g., a battery) for powering the various components, which may preferably be logically connected to the processor 180 via a power management system, so as to manage charging, discharging, and power consumption via the power management system.
The mobile phone further comprises a camera 1100, and the camera 1100 is used for shooting images and videos and transmitting the shot images and videos to the processor 180 for processing. The camera 1100 may be a general camera, an infrared camera, or the like.
The mobile phone can also be provided with a Bluetooth module and the like, which are not described herein again.
In the embodiments shown in fig. 2 and fig. 4, the method flows of the steps can be implemented based on the structure of the mobile phone.
Referring to fig. 2, fig. 2 is a schematic flowchart of a method for adjusting display brightness, applied to an AOD mode, according to an embodiment of the present application, where the method includes:
step 201: the mobile terminal obtains the ambient light brightness.
Step 202: and the mobile terminal determines the target display brightness corresponding to the ambient light brightness.
Step 203: and the mobile terminal adjusts the brightness of the display content displayed in the display screen according to the target display brightness.
In the embodiment of the present application, the AOD mode is a display mode in which a specific display area of a display screen is kept normally bright in a screen lock state of the mobile terminal. In the AOD mode, information such as time, notification, and the like can be displayed in a specific display area. Adjusting the brightness of the display content displayed in the display screen in step 203 refers to adjusting the brightness of the display content displayed in the specific display area. Referring to fig. 3, fig. 3 is a schematic diagram illustrating a display of a mobile terminal in an AOD mode according to an embodiment of the present application. As shown in fig. 3, the display screen includes a specific display area, the specific display area occupies a very small area of the whole display screen, the specific display area is used for displaying information such as time and notification messages, and since only the specific area is lighted, the power consumption of the AOD mode can be very low, and for a user who is used to check the mobile phone, the mobile phone screen does not need to be frequently lighted and the mobile phone is not unlocked, which is very convenient.
In this embodiment of the application, a user may manually open or close the AOD mode, for example, in a setting option of the mobile terminal, an AOD mode selection button may be set, and the user may manually click the AOD mode opening or closing button to open or close the AOD mode. In addition. The mobile terminal may also turn on or turn off the AOD mode by itself within a preset time period, for example, the mobile terminal turns on the AOD mode at 7 o 'clock to 11 o' clock every day, and turns off the AOD mode by itself at other times.
In the embodiment of the application, the mobile terminal can acquire the ambient light intensity through the light sensor. The light sensor, also called an ambient light sensor, may include a photosensitive element for converting the collected light signal into an electrical signal and an analog-to-digital converter for converting the electrical signal into a digital signal. Optionally, the light sensor may further include a signal amplifier, and the signal amplifier may amplify the electrical signal converted by the photosensitive element and output the amplified electrical signal to the analog-to-digital converter. The photosensitive element may include at least one of a photodiode, a phototransistor, a photoresistor, and a silicon photocell. The ambient light intensity may also be referred to as ambient illuminance, and the unit of the ambient light intensity may be lux (lux).
In the embodiment of the application, the mobile terminal can determine the target display brightness corresponding to the ambient light brightness through the mapping relationship between the ambient light brightness and the display brightness. In the mapping relationship between the ambient light brightness and the display brightness, the ambient light brightness is proportional to the display brightness, that is, the larger the ambient light brightness is, the larger the corresponding display brightness is, and the smaller the ambient light brightness is, the smaller the corresponding display brightness is. The display brightness refers to the display brightness of the mobile terminal, not the backlight brightness of the display screen.
In this embodiment of the present application, the brightness of the display content displayed in the display screen by the mobile terminal according to the target display brightness specifically includes: in a dark environment, the target display brightness is low, and the mobile terminal reduces the brightness of the display content. Under a brighter environment, the target display brightness is higher, and the mobile terminal increases the brightness of the display content. Wherein, increasing the brightness of the display content is realized by increasing the brightness value of the pixel corresponding to the display content. Reducing the brightness of the display content is achieved by reducing the brightness value of the pixel corresponding to the display content.
Therefore, in the embodiment of the application, under the condition that the backlight brightness of the display screen is not adjustable, the display brightness is adaptively adjusted by adjusting the brightness of the display content.
In an embodiment of the present application, before step 201, the method further includes:
the mobile terminal determines that a setting condition is met, wherein the setting condition comprises at least one of the following conditions: detecting that the particular display area is illuminated; detecting a specific clicking operation aiming at the specific display area; detecting a specific sliding operation for the specific display area; a particular voice is detected.
Wherein, the specific click operation can be a double click operation, a single click operation, a three click operation and the like. The specific sliding operation may be a sliding operation of sliding from left to right, a sliding operation of sliding from right to left, a sliding operation of sliding first from left to right and then from right to left, a sliding operation of sliding from top to bottom, a sliding operation of sliding from bottom to top, a sliding operation of sliding first from top to bottom and then sliding from bottom to top, and the like. The specific voice may be "adjust the brightness of the display content", "perform a display brightness adjustment function", or the like.
Therefore, in the embodiment of the application, the display brightness adjusting method is performed only when the mobile terminal meets a certain condition, so that the mobile terminal can be prevented from adjusting by itself, and extra power consumption is increased.
In an embodiment of the present application, if the step 203 is to increase the brightness of the display content displayed in the specific display area, after the step 203, the method further includes:
after the set time period, the mobile terminal reduces the brightness of the display content displayed in the specific display area.
Further, the reducing of the brightness of the display content displayed in the specific display area may specifically be: the brightness of the content displayed before step 203 is reduced, or the brightness is reduced to a specific brightness, which is a darker brightness.
The set time period may be 1min, 2min, 3min or other values.
Specifically, in the AOD mode, the specific display area is always on, but the user cannot always look at the specific display area, so if the display content displayed in the specific display area is required to be adjusted to the higher display brightness, in the embodiment of the present application, in order to reduce the power consumption of the mobile terminal, the display brightness of the display content may be automatically adjusted to the lower display brightness after a period of time.
In an embodiment of the present application, after the mobile terminal acquires the ambient light brightness, the method further includes:
the mobile terminal determines target backlight brightness corresponding to the ambient light brightness; under the condition that the current backlight brightness of the display screen is inconsistent with the target backlight brightness, the mobile terminal adjusts the backlight brightness of the display screen to the target backlight brightness; under the condition that the current backlight brightness of the display screen is consistent with the target backlight brightness, the mobile terminal keeps the backlight brightness of the display screen; in the AOD mode, the backlight brightness of the display screen comprises a first backlight brightness and a second backlight brightness, and the first backlight brightness is greater than the second backlight brightness; and under the condition that the ambient light brightness is greater than or equal to a set value, the target backlight brightness is the first backlight brightness, and under the condition that the ambient light brightness is less than the set value, the target backlight brightness is the second backlight brightness.
In the embodiment of the present application, the adjusting of the backlight brightness of the display screen by the mobile terminal refers to the adjusting of the backlight brightness of a specific display area by the mobile terminal.
Specifically, in the AOD mode, the display panel usually has only two backlight luminances, which are the above-mentioned first backlight luminance and second backlight luminance, the first backlight luminance is 50nit, and the second backlight luminance is 10 nit. Before adjusting the brightness of the display content, the backlight brightness of the specific display area is adjusted to the backlight brightness according with the ambient light brightness. In a dark environment, if the current backlight brightness of the display screen is 10nit, the backlight brightness of the display screen does not need to be adjusted, and if the current backlight brightness of the display screen is 50nit, the backlight brightness of the display screen needs to be adjusted to 10 nit. In a relatively bright environment, if the current backlight brightness of the display screen is 10nit, the backlight brightness of the display screen needs to be adjusted to 50nit, and if the current backlight brightness of the display screen is 50nit, the backlight brightness of the display screen does not need to be adjusted.
Therefore, in the embodiment of the application, before the brightness of the display content is adjusted, the backlight brightness of the display screen is adjusted to the backlight brightness which is in accordance with the ambient light brightness, so that the problem of display content distortion caused by overlarge display content brightness adjustment amplitude can be avoided.
In an embodiment of the present application, a specific implementation manner of the mobile terminal adjusting the brightness of the display content displayed in the display screen according to the target display brightness includes:
the mobile terminal determines the current backlight brightness of the display screen; the mobile terminal determines a brightness difference value between the target display brightness and the current backlight brightness of the display screen; and the mobile terminal adjusts the brightness of the display content displayed in the display screen according to the brightness difference.
In the embodiment of the present application, the current backlight brightness of the display screen refers to the current backlight brightness of a specific display area. When the target display brightness is smaller than the current backlight brightness, the brightness difference between the target display brightness and the current backlight brightness is smaller than 0, and at the moment, the mobile terminal reduces the brightness of the display content. When the target display brightness is larger than the current backlight brightness, the brightness difference value between the target display brightness and the current backlight brightness is larger than 0, and at the moment, the mobile terminal increases the brightness of the display content.
In an embodiment of the present application, a specific implementation manner of the mobile terminal adjusting the brightness of the display content displayed in the display screen according to the brightness difference includes:
the mobile terminal obtains an initial RGB value of a pixel corresponding to the display content, and determines an initial YUV value corresponding to the initial RGB value according to the mapping relation between an RGB color space and a YUV color space; the mobile terminal determines a target Y value variation corresponding to the brightness difference value according to a mapping relation between the difference value and the Y value variation, and adjusts a Y value in YUV values of pixels corresponding to the display content, wherein the Y value in the YUV values after adjustment is equal to the sum of the Y value in the initial YUV value and the target Y value variation; the mobile terminal determines the adjusted YUV value according to the mapping relation between the RGB color space and the YUV color space, determines the adjusted RGB value, and displays the pixel corresponding to the display content according to the adjusted RGB value.
In the embodiment of the present application, the display screen is described by taking a liquid crystal display screen as an example. The liquid crystal display screen is composed of a plurality of pixel points, and each pixel point comprises 3 sub-pixel points. The pixel value of each sub-pixel point is the gray scale brightness of any one of the corresponding RGB (red, green and blue). Each sub-pixel point corresponds to a pixel channel, for example, an R sub-pixel point corresponds to an R pixel channel, a color filter which only allows light in a red waveband to pass is added between the R sub-pixel point and the backlight, gray scale brightness of the R sub-pixel point is determined by light transmittance of the R sub-pixel point, the light transmittance of the R sub-pixel point is related to a deflection angle of a corresponding liquid crystal molecule of the R sub-pixel point, and the deflection angle of the liquid crystal molecule is related to a pixel voltage loaded on the brightness of the liquid crystal molecule. Generally, the higher the pixel voltage, the larger the deflection angle of the corresponding liquid crystal molecules, the higher the transmittance, and the higher the corresponding gray-scale luminance.
The display content of the display screen is refreshed and displayed at a preset refresh frequency. For example, the preset refresh frequency may be set to 60Hz, that is, 60 frames of pictures are refreshed and displayed in 1 second, and one frame of pictures is refreshed on the display screen every 16.67 ms. The display content in the embodiment of the present application is the content of the current frame picture. The content of each frame corresponds to a set of RGB values for all pixels on the designated display area.
The initial RGB values of the pixels corresponding to the display contents in the embodiment of the present application are determined according to the display contents of the designated display area.
In the embodiment of the present application, the initial RGB value of the pixel corresponding to the display content is converted into an initial YUV value corresponding to a YUV color space. Specifically, the conversion may be performed according to the following mapping relationship between the RGB color space and the YUV color space.
R＝Y+1.140V
G＝Y-0.395U-0.581V
B＝Y+2.032U
In the YUV color space, Y is a luminance component, and U and V are color components.
On the premise of keeping U, V components unchanged, increasing or decreasing the size of Y components to obtain an adjusted YUV value, then converting the adjusted YUV value into an adjusted RGB value according to the mapping relation between the RGB color space and the YUV color space, and displaying pixels corresponding to display contents according to the adjusted RGB value. Thereby achieving the purpose of adjusting the brightness of the display content of the display screen. Since the U, V component is not modified, only the Y component is increased or decreased so that the adjusted RGB values do not cause color deviation, the brightness can be increased or decreased while maintaining the trueness of the color.
In this embodiment of the application, a mapping relationship between the difference value and the change amount of the Y value may be preset and stored in a nonvolatile memory of the mobile terminal. As shown in table 1, table 1 is a mapping table of a difference value and a change amount of a Y value disclosed in the embodiment of the present application.
TABLE 1
As can be seen from table 1, when the backlight luminance difference values are in different ranges, the corresponding Y value variation amounts are different. In general, the larger the luminance difference value is, the larger the corresponding change amount of the Y value is. It should be noted that table 1 is only one possible example of a mapping relationship table between a difference value and a change amount of a Y value, which is disclosed in the present application, and this is not limited in the present application.
In the embodiment of the application, the adjusted RGB value does not exceed the maximum gray scale value or is not lower than the minimum gray scale value. For example, if the RGB value is 0 to 255, the maximum value of the adjusted RGB value is not more than 255, and the minimum value of the adjusted RGB value is not less than 0.
In an embodiment of the present application, a specific implementation manner of the mobile terminal adjusting the brightness of the display content displayed in the display screen according to the brightness difference includes:
the mobile terminal acquires an initial RGB value of a pixel corresponding to the display content; the mobile terminal determines a target RGB value variation corresponding to the brightness difference value according to the mapping relation between the difference value and the RGB value variation; the mobile terminal adjusts the RGB value of the pixel corresponding to the display content, and the adjusted RGB value is equal to the sum of the initial RGB value and the change quantity of the target RGB value; and the mobile terminal displays the pixels corresponding to the content to be displayed according to the adjusted RGB values.
In the embodiment of the application, the mobile terminal directly adjusts the initial RGB value and then changes the initial RGB value into the adjusted RGB value. The initial RGB values may be increased by target RGB value variations, respectively, to obtain adjusted RGB values. For example, the initial RGB value is (100,100,100), and if the RGB value increment is 50, the adjusted RGB value is (150,150,150).
The mapping relationship between the difference value and the change amount of the RGB values may be preset and stored in a non-volatile memory of the mobile terminal. As shown in table 2, table 2 is a mapping table of a mapping relationship between a difference value and an RGB value variation amount disclosed in the embodiment of the present application.
TABLE 2
As can be seen from table 2, when the difference values are in different ranges, the corresponding RGB value variation amounts are different. In general, the larger the luminance difference value is, the larger the corresponding change amount of the RGB values is. It should be noted that table 2 is only a possible example of a mapping relation table between a difference value and an RGB value change amount disclosed in the present application, and this is not limited in the present application.
The method and the device do not need to convert the RGB value into the YUV value, the conversion algorithm is simple, the data operation amount can be reduced, and the conversion speed from the initial RGB value to the adjusted RGB value is improved.
The embodiment of the present application further provides another more detailed method flow, as shown in fig. 4, the method includes:
step 401: the mobile terminal obtains the ambient light brightness.
Step 402: and the mobile terminal determines the target backlight brightness corresponding to the ambient light brightness.
If the current backlight brightness of the display screen is not consistent with the target backlight brightness, executing step 403; in case the current backlight brightness of the display screen is consistent with the target backlight brightness, step 404 is executed.
In the AOD mode, the backlight brightness of the display screen comprises a first backlight brightness and a second backlight brightness, and the first backlight brightness is greater than the second backlight brightness; and under the condition that the ambient light brightness is greater than or equal to a set value, the target backlight brightness is the first backlight brightness, and under the condition that the ambient light brightness is less than the set value, the target backlight brightness is the second backlight brightness.
Step 403: and the mobile terminal adjusts the backlight brightness of the display screen to the target backlight brightness.
Step 404: the mobile terminal maintains the backlight brightness of the display screen.
Step 405: and the mobile terminal determines the target display brightness corresponding to the ambient light brightness.
Step 406: the mobile terminal determines a current backlight brightness of the display screen.
Step 407: and the mobile terminal determines the brightness difference value between the target display brightness and the current backlight brightness of the display screen.
Step 408: and the mobile terminal adjusts the brightness of the display content displayed in the display screen according to the brightness difference.
It should be noted that, the specific implementation of the steps of the method shown in fig. 4 can refer to the specific implementation described in the above method, and will not be described here.
In accordance with the embodiments shown in fig. 2 and fig. 4, please refer to fig. 5, fig. 5 is a schematic structural diagram of a mobile terminal according to an embodiment of the present application, which is shown as applied to the AOD mode and includes a processor, a memory, a communication interface, and one or more programs;
wherein the one or more programs are stored in the memory and configured to be executed by the processor, the programs including instructions for performing the steps of:
obtaining the brightness of the environment;
determining target display brightness corresponding to the ambient light brightness;
and adjusting the brightness of the display content displayed in the display screen according to the target display brightness.
In an embodiment of the application, after obtaining the ambient light brightness, the program includes instructions for further performing the following steps:
determining a target backlight brightness corresponding to the ambient light brightness;
under the condition that the current backlight brightness of the display screen is inconsistent with the target backlight brightness, adjusting the backlight brightness of the display screen to the target backlight brightness; under the condition that the current backlight brightness of the display screen is consistent with the target backlight brightness, the backlight brightness of the display screen is kept;
the target backlight brightness is a first backlight brightness when the ambient light brightness is greater than or equal to a set value, and the target backlight brightness is a second backlight brightness when the ambient light brightness is less than the set value, wherein the first backlight brightness is greater than the second backlight brightness.
In an embodiment of the present application, in adjusting the brightness of the display content displayed in the display screen according to the target display brightness, the program includes instructions specifically configured to:
determining a current backlight brightness of the display screen;
determining a brightness difference value between the target display brightness and the current backlight brightness of the display screen;
and adjusting the brightness of the display content displayed in the display screen according to the brightness difference.
In an embodiment of the application, in adjusting the brightness of the display content displayed in the display screen according to the brightness difference, the program includes instructions specifically configured to:
acquiring an initial RGB value of a pixel corresponding to the display content, and determining an initial YUV value corresponding to the initial RGB value according to a mapping relation between an RGB color space and a YUV color space;
determining a target Y value variation corresponding to the brightness difference according to a mapping relation between the difference and the Y value variation, and adjusting a Y value in YUV values of pixels corresponding to the display content, wherein the Y value in the adjusted YUV values is equal to the sum of the Y value in the initial YUV values and the target Y value variation;
and determining the adjusted YUV value according to the mapping relation between the RGB color space and the YUV color space, determining the adjusted RGB value, and displaying the pixel corresponding to the display content according to the adjusted RGB value.
In an embodiment of the application, in adjusting the brightness of the display content displayed in the display screen according to the brightness difference, the program includes instructions specifically configured to:
acquiring an initial RGB value of a pixel corresponding to the display content;
determining a target RGB value variation corresponding to the brightness difference value according to the mapping relation between the difference value and the RGB value variation;
adjusting the RGB value of the pixel corresponding to the display content, wherein the adjusted RGB value is equal to the sum of the initial RGB value and the change amount of the target RGB value;
and displaying the pixel corresponding to the content to be displayed according to the adjusted RGB value.
It should be noted that, for the specific implementation process of the present embodiment, reference may be made to the specific implementation process described in the above method embodiment, and a description thereof is omitted here.
Referring to fig. 6, fig. 6 is a mobile terminal 600 provided in an embodiment of the present application, and is applied to an AOD mode, where the mobile terminal 600 includes an obtaining unit 601, a determining unit 602, and an adjusting unit 603, where:
an acquisition unit 601 configured to acquire ambient light brightness;
a determining unit 602, configured to determine a target display brightness corresponding to the ambient light brightness;
an adjusting unit 603, configured to adjust the brightness of the display content displayed in the display screen according to the target display brightness.
In an embodiment of the present application, the determining unit 602 is further configured to determine a target backlight brightness corresponding to the ambient light brightness;
an adjusting unit 603, configured to adjust the backlight brightness of the display screen to the target backlight brightness if the current backlight brightness of the display screen is inconsistent with the target backlight brightness; under the condition that the current backlight brightness of the display screen is consistent with the target backlight brightness, the backlight brightness of the display screen is kept;
the target backlight brightness is a first backlight brightness when the ambient light brightness is greater than or equal to a set value, and the target backlight brightness is a second backlight brightness when the ambient light brightness is less than the set value, wherein the first backlight brightness is greater than the second backlight brightness.
In an embodiment of the application, in terms of adjusting the brightness of the display content displayed in the display screen according to the target display brightness, the determining unit 602 is specifically configured to:
determining a current backlight brightness of the display screen;
determining a brightness difference value between the target display brightness and the current backlight brightness of the display screen;
and adjusting the brightness of the display content displayed in the display screen according to the brightness difference.
In an embodiment of the application, in terms of adjusting the brightness of the display content displayed in the display screen according to the brightness difference, the determining unit 602 is specifically configured to:
acquiring an initial RGB value of a pixel corresponding to the display content, and determining an initial YUV value corresponding to the initial RGB value according to a mapping relation between an RGB color space and a YUV color space;
determining a target Y value variation corresponding to the brightness difference according to a mapping relation between the difference and the Y value variation, and adjusting a Y value in YUV values of pixels corresponding to the display content, wherein the Y value in the adjusted YUV values is equal to the sum of the Y value in the initial YUV values and the target Y value variation;
and determining the adjusted YUV value according to the mapping relation between the RGB color space and the YUV color space, determining the adjusted RGB value, and displaying the pixel corresponding to the display content according to the adjusted RGB value.
In an embodiment of the application, in terms of adjusting the brightness of the display content displayed in the display screen according to the brightness difference, the determining unit 602 is specifically configured to:
acquiring an initial RGB value of a pixel corresponding to the display content;
determining a target RGB value variation corresponding to the brightness difference value according to the mapping relation between the difference value and the RGB value variation;
adjusting the RGB value of the pixel corresponding to the display content, wherein the adjusted RGB value is equal to the sum of the initial RGB value and the change amount of the target RGB value;
and displaying the pixel corresponding to the content to be displayed according to the adjusted RGB value.
It should be noted that the wearable device described in the embodiments of the present application is presented in the form of a functional unit. The term "unit" as used herein is to be understood in its broadest possible sense, and objects used to implement the functions described by the respective "unit" may be, for example, an integrated circuit ASIC, a single circuit, a processor (shared, dedicated, or chipset) and memory that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable components that provide the described functionality.
The acquiring unit 601, the determining unit 602, and the adjusting unit 603 may be processors.
Embodiments of the present application also provide a computer storage medium, where the computer storage medium stores a computer program for electronic data exchange, and the computer program enables a computer to execute part or all of the steps of any one of the methods described in the above method embodiments, and the computer includes a mobile terminal.
Embodiments of the present application also provide a computer program product comprising a non-transitory computer readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps of any of the methods as described in the above method embodiments. The computer program product may be a software installation package, the computer comprising a mobile terminal.
It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present application is not limited by the order of acts described, as some steps may occur in other orders or concurrently depending on the application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required in this application.
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.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the above-described division of the units is only one type of division of logical functions, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some interfaces, devices or units, and may be an electric or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit may be stored in a computer readable memory if it is implemented in the form of a software functional unit and sold or used as a stand-alone product. Based on such understanding, the technical solution of the present application may be substantially implemented or a part of or all or part of the technical solution contributing to the prior art may be embodied in the form of a software product stored in a memory, and including several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the above-mentioned method of the embodiments of the present application. And the aforementioned memory comprises: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable memory, which may include: flash Memory disks, Read-Only memories (ROMs), Random Access Memories (RAMs), magnetic or optical disks, and the like.
The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the method and the core concept of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific implementation and application scope, and in view of the above, the content of the present specification should not be construed as a limitation to the present application.
Claims (6)
1. A method for adjusting display brightness is applied to an AOD mode, and comprises the following steps:
acquiring the brightness of the environment light in the AOD mode, wherein the AOD mode is a display mode that a specific display area of a display screen is kept normally bright when the mobile terminal is in a screen locking state, and the display screen is in a low power consumption state and the backlight brightness of the display screen is fixed in the AOD mode;
determining a target backlight brightness corresponding to the ambient light brightness, and adjusting the current backlight brightness of a specific display area of the display screen to the target backlight brightness under the condition that the current backlight brightness of the specific display area is inconsistent with the target backlight brightness; maintaining the current backlight brightness of the specific display area under the condition that the current backlight brightness of the specific display area is consistent with the target backlight brightness; the target backlight brightness is first backlight brightness when the ambient light brightness is greater than or equal to a set value, the target backlight brightness is second backlight brightness when the ambient light brightness is less than the set value, the first backlight brightness is greater than the second backlight brightness, and the backlight brightness of the specific display area is adjusted to be consistent with the ambient light brightness before the brightness of the display content in the specific display area is adjusted;
determining target display brightness corresponding to the ambient light brightness and current backlight brightness of the display screen;
determining a brightness difference value between the target display brightness and the current backlight brightness of the display screen;
adjusting the brightness of the display content displayed in the display screen according to the target display brightness and the brightness difference value, wherein the brightness of the display content displayed in the display screen is adjusted to be the brightness of the display content displayed in the specific display area;
after the set time length, the mobile terminal reduces the brightness of the display content displayed in the specific display area to the specified brightness and is in a normally-on state to stop the mobile terminal from automatically adjusting the brightness, so that the mobile terminal can adjust the display brightness only when meeting the preset condition to avoid the mobile terminal from automatically adjusting.
2. The method of claim 1, wherein adjusting the brightness of the display content displayed on the display screen according to the brightness difference comprises:
acquiring an initial RGB value of a pixel corresponding to the display content, and determining an initial YUV value corresponding to the initial RGB value according to a mapping relation between an RGB color space and a YUV color space;
determining a target Y value variation corresponding to the brightness difference according to a mapping relation between the difference and the Y value variation, and adjusting a Y value in YUV values of pixels corresponding to the display content, wherein the Y value in the adjusted YUV values is equal to the sum of the Y value in the initial YUV values and the target Y value variation;
and determining the adjusted YUV value according to the mapping relation between the RGB color space and the YUV color space, determining the adjusted RGB value, and displaying the pixel corresponding to the display content according to the adjusted RGB value.
3. The method of claim 1, wherein adjusting the brightness of the display content displayed on the display screen according to the brightness difference comprises:
acquiring an initial RGB value of a pixel corresponding to the display content;
determining a target RGB value variation corresponding to the brightness difference value according to the mapping relation between the difference value and the RGB value variation;
adjusting the RGB value of the pixel corresponding to the display content, wherein the adjusted RGB value is equal to the sum of the initial RGB value and the change amount of the target RGB value;
and displaying the pixels corresponding to the display content according to the adjusted RGB values.
4. A mobile terminal, characterized in that, applied to AOD mode, the mobile terminal comprises an obtaining unit, a determining unit and an adjusting unit, wherein:
the obtaining unit is configured to obtain the brightness of the ambient light in the AOD mode, where the AOD mode is a display mode in which a specific display area of a display screen is kept normally bright when the mobile terminal is in a screen-locking state, and the display screen is in a low-power consumption state and the backlight brightness of the display screen is fixed in the AOD mode;
the determining unit is configured to determine a target display brightness corresponding to the ambient light brightness and a current backlight brightness of the display screen, and determine a brightness difference between the target display brightness and the current backlight brightness of the display screen;
the adjusting unit is used for adjusting the brightness of the display content displayed in the display screen according to the target display brightness and the brightness difference value, and adjusting the brightness of the display content displayed in the display screen into the brightness of the display content displayed in the specific display area;
the determining unit is further configured to determine a target backlight brightness corresponding to the ambient light brightness;
the adjusting unit is further configured to adjust the current backlight brightness of the specific display area to the target backlight brightness when the current backlight brightness of the specific display area of the display screen is inconsistent with the target backlight brightness; maintaining the current backlight brightness of the specific display area under the condition that the current backlight brightness of the specific display area is consistent with the target backlight brightness; the target backlight brightness is first backlight brightness when the ambient light brightness is greater than or equal to a set value, the target backlight brightness is second backlight brightness when the ambient light brightness is less than the set value, the first backlight brightness is greater than the second backlight brightness, and the backlight brightness of the specific display area is adjusted to be consistent with the ambient light brightness before the brightness of the display content in the specific display area is adjusted; after the set time length, the mobile terminal reduces the brightness of the display content displayed in the specific display area to the specified brightness and is in a normally-on state to stop the mobile terminal from automatically adjusting the brightness, so that the mobile terminal can adjust the display brightness only when meeting the preset condition to avoid the mobile terminal from automatically adjusting.
5. A mobile terminal comprising a processor and a memory for storing one or more programs configured for execution by the processor, the programs comprising instructions for performing the method of any of claims 1-3.
6. A computer-readable storage medium for storing a computer program for electronic data exchange, wherein the computer program causes a computer to perform the method according to any one of claims 1-3.
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| CN110099176A (en) * | 2019-04-30 | 2019-08-06 | 努比亚技术有限公司 | Breath screen display methods, wearable device and computer readable storage medium |
| KR20210007455A (en) | 2019-07-11 | 2021-01-20 | 삼성전자주식회사 | Display driving circuit, display device comprising thereof and operating method of display driving circuit |
| CN110992904A (en) * | 2019-12-27 | 2020-04-10 | 阿克索健康科技(广州)有限公司 | Hospital ward bedside display screen dimming system |
| CN112035037A (en) * | 2020-08-31 | 2020-12-04 | 北京小米移动软件有限公司 | Display brightness adjusting method and device, terminal and storage medium |
| CN112261223A (en) * | 2020-10-20 | 2021-01-22 | 网易（杭州）网络有限公司 | Image rendering method, device and equipment and storage medium |
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| CN114170976A (en) * | 2021-12-13 | 2022-03-11 | Oppo广东移动通信有限公司 | Display brightness adjusting method and device, electronic equipment and computer readable storage medium |
| CN114639356B (en) * | 2022-03-14 | 2024-02-06 | Oppo广东移动通信有限公司 | Display brightness adjusting method, device, electronic equipment and computer readable storage medium |
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