CN109036296B - Screen backlight brightness adjustment method, device, terminal and storage medium - Google Patents

Abstract

The embodiment of the application discloses a screen backlight brightness adjusting method, a screen backlight brightness adjusting device, a terminal and a storage medium, and belongs to the technical field of terminals. The method comprises the following steps: when the automatic screen backlight brightness adjusting function is started, acquiring the ambient light intensity; if the ambient light intensity is greater than the ambient light intensity threshold value, setting the screen backlight brightness as an automatic brightness adjustment upper limit, wherein the automatic brightness adjustment upper limit is smaller than the maximum screen backlight brightness; and when the brightness manual up-regulation signal is received, up-regulating the screen backlight brightness according to the brightness manual up-regulation signal. Because the upper limit of the automatically adjusted brightness is smaller than the maximum value of the screen backlight brightness, the problem that the power consumption of the terminal is too high due to the fact that the screen backlight brightness is directly adjusted to the maximum value under the condition that the ambient light is strong can be solved; moreover, the user can manually adjust the backlight brightness of the screen according to the requirement, and the content is clearly displayed under the condition of strong ambient light.

Description

Screen backlight brightness adjustment method, device, terminal and storage medium

technical field

The embodiments of the present application relate to the field of terminals, and in particular, to a method, device, terminal, and storage medium for adjusting the brightness of a screen backlight.

Background technique

Mobile terminals such as mobile phones usually have the function of automatically adjusting the brightness of the screen backlight.

After the screen backlight brightness automatic adjustment function is enabled, the terminal obtains the current ambient light intensity through the light sensor, so as to adjust the screen backlight brightness according to the current ambient light intensity. Among them, the higher the current ambient light intensity, the higher the screen backlight brightness after automatic adjustment.

SUMMARY OF THE INVENTION

The embodiments of the present application provide a method, device, terminal, and storage medium for adjusting the brightness of the screen backlight, which can solve the problem of directly adjusting the brightness of the screen backlight to the maximum value when the ambient light intensity is strong after the automatic adjustment function of the screen backlight brightness is turned on. A problem that leads to an increase in the power consumption of the terminal. The technical solution is as follows:

In one aspect, a method for adjusting the brightness of a screen backlight is provided, the method comprising:

Obtain the ambient light intensity when the screen backlight brightness automatic adjustment function is enabled;

If the ambient light intensity is greater than the ambient light intensity threshold, the screen backlight brightness is set to the upper limit of the automatically adjusted brightness, and the upper limit of the automatically adjusted brightness is less than the maximum value of the screen backlight brightness;

When receiving a manual brightness increase signal, the brightness of the screen backlight is increased according to the manual brightness increase signal.

In another aspect, a device for adjusting the brightness of a screen backlight is provided, the device comprising:

The ambient light acquisition module is used to acquire the ambient light intensity when the screen backlight brightness automatic adjustment function is enabled;

a first adjustment module, configured to set the brightness of the screen backlight to an upper limit of the automatically adjusted brightness if the ambient light intensity is greater than the threshold of the ambient light intensity, and the upper limit of the automatically adjusted brightness is less than the maximum value of the brightness of the screen backlight;

The second adjustment module is configured to increase the brightness of the screen backlight according to the manual brightness increase signal when receiving the manual brightness increase signal.

In another aspect, a terminal is provided, the terminal includes a processor and a memory; the memory stores at least one instruction for being executed by the processor to implement the screen according to the above aspect Backlight brightness adjustment method.

In another aspect, a computer-readable storage medium is provided, the storage medium stores at least one instruction for being executed by a processor to implement the method for adjusting the brightness of a screen backlight as described in the above aspects.

In the state where the automatic adjustment function of screen backlight brightness is enabled, by obtaining the ambient light intensity, when the ambient light intensity is greater than the ambient light intensity threshold, the screen backlight brightness is set to the upper limit of the automatic brightness adjustment, and when further receiving a signal for manual brightness adjustment , according to the signal to increase the brightness of the screen backlight; because the upper limit of the automatic adjustment of the brightness is less than the maximum value of the screen backlight brightness, it can avoid the problem that the screen backlight brightness is directly increased to the maximum value when the ambient light is strong, resulting in excessive power consumption of the terminal; In addition, users can manually increase the brightness of the screen backlight according to their needs to ensure that the content is clearly displayed in the case of strong ambient light.

Description of drawings

FIG. 1 is a schematic structural diagram of a terminal provided by an exemplary embodiment of the present application;

FIG. 2 shows a flowchart of a method for adjusting the brightness of a screen backlight according to an exemplary embodiment of the present application;

FIG. 3 shows a flowchart of a method for adjusting the brightness of a screen backlight according to another exemplary embodiment of the present application;

Fig. 4 is the implementation schematic diagram of the screen backlight brightness adjustment method shown in Fig. 3;

5 is a schematic diagram of a brightness adjustment mode in different brightness intervals;

6 shows a flowchart of a method for adjusting the brightness of a screen backlight according to another exemplary embodiment of the present application;

FIG. 7 shows a structural block diagram of an apparatus for adjusting the brightness of a screen backlight provided by an embodiment of the present application.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

As used herein, "plurality" refers to two or more. "And/or", which describes the association relationship of the associated objects, means that there can be three kinds of relationships, for example, A and/or B, which can mean that A exists alone, A and B exist at the same time, and B exists alone. The character "/" generally indicates that the associated objects are an "or" relationship.

Before explaining the embodiments of the present application, the application scenarios of the embodiments of the present application are first described. FIG. 1 shows a schematic structural diagram of a terminal provided by an exemplary embodiment of the present application.

The terminal 100 is an electronic device with an image display function. For example, the terminal is a smart phone, a tablet computer, an e-book reader or a personal portable computer, and so on.

Optionally, the terminal 100 includes: a processor 120 , a memory 140 and a display screen 160 .

Processor 120 may include one or more processing cores. The processor 120 uses various interfaces and lines to connect various parts in the entire terminal 100, and executes the terminal by running or executing the instructions, programs, code sets or instruction sets stored in the memory 140, and calling the data stored in the memory 140. 100 various functions and processing data. Optionally, the processor 120 may use at least one of a digital signal processing (Digital Signal Processing, DSP), a Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), and a Programmable Logic Array (Programmable Logic Array, PLA) implemented in hardware. The processor 120 may integrate one or a combination of a central processing unit (Central Processing Unit, CPU), a graphics processing unit (Graphics Processing Unit, GPU), a modem, and the like. Among them, the CPU mainly handles the operating system, user interface, and application programs; the GPU is used to render and draw the content that needs to be displayed on the display screen; the modem is used to handle wireless communication. It can be understood that, the above-mentioned modem may not be integrated into the processor 120, but is implemented by a single chip.

The memory 140 may include random access memory (Random Access Memory, RAM), or may include read-only memory (Read-Only Memory). Optionally, the memory 140 includes a non-transitory computer-readable storage medium. Memory 140 may be used to store instructions, programs, codes, sets of codes, or sets of instructions. The memory 140 may include a stored program area and a stored data area, wherein the stored program area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playback function, an image playback function, etc.), Instructions, etc., used to implement the following method embodiments; the storage data area can store data and the like involved in the following method embodiments.

The display screen 160 is a component for displaying images. The display screen 160 may only have the function of displaying images, or may simultaneously have the functions of displaying images and receiving touch operations, that is, the display screen 160 may be a touch display screen. In addition, the display screen 160 may be a full screen, a special-shaped screen, a folding screen, a curved screen, or other forms of screens, which are not limited in this embodiment of the present application.

In this embodiment of the present application, the display screen 160 includes an image display layer and a backlight layer, wherein the image display layer is used to display an image, and the backlight layer is located below the image display layer to provide a light source for the liquid crystal layer, thereby illuminating the image display The image displayed by the layer. Optionally, the backlight layer may use a light emitting diode (Light Emitting Diode, LED) light source, and the embodiment of the present application does not limit the light source used by the backlight layer.

It should be noted that, in order to realize the brightness adjustment of the screen backlight, in this embodiment of the present application, a light sensor is further provided in the terminal, and the light sensor is used to collect the current ambient light intensity and send the current ambient light intensity to the processor 120, so that the The processor 120 controls the backlight layer of the display screen 160 to adjust the brightness according to the current ambient light intensity. Optionally, the light sensor is arranged on one side of the display screen 160 .

Of course, the terminal 100 may also include other components such as a distance sensor, a camera, an acceleration sensor, an angular velocity sensor, a positioning module, and a Bluetooth module. The embodiments of the present application do not limit the specific structure of the terminal 100 .

In the related art, the terminal provides two modes of automatic adjustment and manual adjustment of the brightness of the screen backlight for the user to choose and use. In the automatic adjustment mode, when the ambient light changes, the terminal automatically adjusts the screen backlight brightness between the minimum and maximum screen backlight brightness according to the ambient light intensity; while in the manual adjustment mode, the terminal sets the screen backlight brightness to the user set value, and will not automatically adjust based on ambient light intensity.

In the manual adjustment mode, the adjustment of the ambient light intensity is completely dependent on the user, and the adjustment process is cumbersome; while in the automatic adjustment mode, since the screen backlight brightness can be adjusted arbitrarily, the screen backlight brightness is often set in a strong ambient light environment. is the maximum value, resulting in an increase in terminal power consumption.

However, in the solution provided by the embodiment of the present application, the terminal combines automatic adjustment and manual adjustment, which simplifies the adjustment of the screen backlight brightness and avoids the terminal from automatically setting the screen backlight brightness to the maximum value, thereby reducing the power consumption of the terminal. Illustrative embodiments are used for description below.

Please refer to FIG. 2 , which shows a flowchart of a method for adjusting the brightness of a screen backlight according to an exemplary embodiment of the present application. This embodiment is illustrated by taking the method applied to the terminal 100 shown in FIG. 1 as an example. The method includes:

Step 201: Obtain the ambient light intensity when the function of automatically adjusting the brightness of the screen backlight is enabled.

In a possible implementation, the terminal provides two screen backlight brightness adjustment modes for the user to choose, namely manual adjustment and automatic adjustment. In the automatic adjustment mode, the terminal can automatically adjust the screen backlight brightness according to the ambient light, and can adjust the screen backlight brightness according to the user's manual settings.

Optionally, when the function of automatically adjusting the brightness of the screen backlight is enabled, the terminal continuously obtains the ambient light intensity (in a bright screen state) through the light sensor, and sends the obtained ambient light intensity to the processor. Among them, the light sensor is arranged on one side of the screen.

Step 202 , if the ambient light intensity is greater than the ambient light intensity threshold, the screen backlight brightness is set to the upper limit of the automatically adjusted brightness, and the upper limit of the automatically adjusted brightness is less than the maximum brightness of the screen backlight.

Different from the related art, regardless of the ambient light intensity, the terminal directly determines the screen backlight brightness according to the acquired ambient light intensity. In this embodiment of the present application, after acquiring the ambient light intensity, the terminal detects whether the ambient light intensity is greater than the ambient light intensity. threshold, and when the ambient light intensity is greater than the ambient light intensity threshold, the screen backlight brightness is set to the upper limit of the automatic brightness adjustment.

In the embodiment of the present application, the upper limit of the automatically adjusted brightness is smaller than the maximum value of the brightness of the screen backlight, that is, no matter how strong the current ambient light intensity is, the terminal cannot set the brightness of the screen backlight to the maximum value, and can only adjust the backlight between 0 and the upper limit of the brightness automatically. Set the screen backlight brightness within the brightness range.

Optionally, the upper limit of the automatically adjusted brightness = the maximum brightness of the screen backlight × 80%.

Optionally, the ambient light intensity threshold is a fixed value, and can also be dynamically determined by the terminal according to the current operating state. For example, when the ambient light intensity threshold is 80000lx.

Optionally, the upper limit of the automatically adjusted brightness is positively correlated with the ambient light intensity threshold, that is, the larger the ambient light intensity threshold is, the larger the upper limit of the automatically adjusted brightness is.

Step 203 , when the manual brightness increase signal is received, the brightness of the screen backlight is increased according to the manual brightness increase signal.

After the screen backlight brightness is set to automatically adjust the upper limit of the brightness, the content displayed on the terminal display screen may be clearly displayed to the user due to the strong current ambient light. In this case, the user can further increase the brightness of the screen backlight manually. Correspondingly, when receiving a manual brightness increase signal, the terminal will manually increase the brightness of the screen backlight according to the brightness increase signal. The manually increased screen backlight brightness is high to automatically adjust the upper limit of brightness.

For example, the terminal manually increases the signal according to the received brightness, and adjusts the screen backlight brightness from 80000lx to 85000lx.

In a possible implementation manner, when receiving the manual brightness increase signal, the terminal increases the brightness of the screen backlight on the basis of automatically adjusting the upper limit of the brightness according to the increase range indicated by the manual brightness increase signal.

In other possible implementations, the terminal may display adjustment controls in the user interface, and when receiving a trigger signal for the adjustment controls, determine the received signal for manual brightness adjustment, and automatically further adjust the screen backlight according to the current ambient light intensity Brightness to break through the limit of the automatic brightness limit.

It should be noted that, after the terminal manually increases the brightness of the screen backlight according to the brightness-up signal, the function of automatically adjusting the brightness of the screen backlight is still enabled.

Obviously, compared with the solution of automatically adjusting the backlight brightness in the related art, in the embodiment of the present application, the terminal cannot directly set the screen backlight brightness to the maximum value. When the user needs higher screen brightness, the screen can be further adjusted according to the user's manual operation. The brightness of the backlight can reduce the power consumption of the terminal in a bright environment and ensure the normal use of the user.

To sum up, in the embodiment of the present application, in the state where the function of automatically adjusting the brightness of the screen backlight is enabled, by obtaining the ambient light intensity, when the ambient light intensity is greater than the ambient light intensity threshold, the screen backlight brightness is set to the upper limit of the automatic brightness adjustment , and when further receiving a manual brightness increase signal, the screen backlight brightness will be increased according to the signal; since the upper limit of the automatic brightness adjustment is less than the maximum screen backlight brightness, it can avoid the situation of strong ambient light, directly increasing the screen backlight brightness to the maximum In addition, users can manually increase the brightness of the screen backlight according to their needs to ensure that the content is clearly displayed in the case of strong ambient light.

Optionally, after obtaining the ambient light intensity, when it is detected that the ambient light intensity is greater than the ambient light intensity threshold and less than the ambient light intensity threshold, the terminal adjusts the screen backlight brightness when the ambient light intensity is within the automatic brightness adjustment interval. Among them, the screen backlight brightness has a positive correlation with the ambient light intensity, and the maximum value of the automatic brightness adjustment interval is the upper limit of the automatic brightness adjustment.

Optionally, the brightness of the screen backlight and the intensity of the ambient light may be linearly or non-linearly related, which is not limited in this embodiment of the present application.

For example, when the ambient light intensity threshold is 80000lx, the maximum screen backlight brightness is 450nits, and the upper limit of the dynamic adjustment brightness is 0.8×the maximum screen backlight brightness, if the current ambient light intensity is less than 80000lx, the terminal will, according to the current ambient light intensity, set the value in ( 0, 360nits) to adjust the screen backlight brightness within the automatic brightness adjustment range.

In a possible implementation, the terminal receives the manual brightness increase operation through the screen backlight brightness adjustment control, and when receiving the manual brightness increase signal, firstly determines the increase range indicated by the manual brightness increase signal, so as to automatically adjust the brightness according to the increase range. Adjust the brightness of the screen backlight on the basis of adjusting the upper limit of brightness. Illustrative embodiments are used for description below.

Step 301: Obtain the ambient light intensity when the function of automatically adjusting the brightness of the screen backlight is enabled.

Step 302 , if the ambient light intensity is greater than the ambient light intensity threshold, the screen backlight brightness is set to the upper limit of the automatically adjusted brightness, and the upper limit of the automatically adjusted brightness is less than the maximum value of the screen backlight brightness.

For the implementation of the foregoing steps 301 to 302, reference may be made to steps 201 to 202, and details are not described herein again in this embodiment.

Step 303 , when receiving the manual adjustment instruction of the screen backlight brightness, display the screen backlight brightness adjustment control, and the initial brightness indicated by the screen backlight brightness adjustment control is the upper limit of the automatically adjusted brightness.

The manual adjustment instruction of the screen backlight brightness is used to trigger the display screen backlight brightness adjustment control.

In a possible implementation manner, when the user clicks the brightness shortcut adjustment icon in the drop-down bar, the terminal receives the manual adjustment instruction of the screen backlight brightness, and then displays the screen backlight brightness adjustment control in the user interface.

In another possible implementation manner, when receiving an outgoing command from the drop-down bar, the terminal determines to receive an instruction to manually adjust the brightness of the screen backlight, and directly displays the control for adjusting the brightness of the screen backlight in the drop-down bar.

In other possible implementation manners, in order to facilitate the user to quickly and manually adjust the brightness of the screen backlight, after the terminal sets the brightness of the screen backlight to the upper limit of the automatic brightness adjustment, a quick adjustment control is displayed in the user interface, and when a click signal for the quick adjustment control is received , confirm to receive the manual adjustment command of the screen backlight brightness, and display the screen backlight brightness adjustment control. The embodiment of the present application does not limit the specific manner of the control for adjusting the backlight brightness of the screen backlight when exhaling.

Optionally, the initial brightness indicated by the screen backlight brightness adjustment control displayed on the terminal is the upper limit of the automatically adjusted brightness.

In addition, the screen backlight brightness adjustment control may use a wheel control or a slider control, etc., and the present application does not limit the specific expression form of the screen backlight brightness adjustment control.

For example, when the screen backlight brightness adjustment control includes a brightness bar and a slider, and the upper limit of the automatic adjustment brightness is 0.8 × the maximum screen backlight brightness, when the manual adjustment command of the screen backlight brightness is received, in the displayed screen backlight brightness adjustment control, slide the slider. The block is at 4/5 of the brightness bar.

Illustratively, as shown in FIG. 4 , the terminal displays a screen backlight brightness adjustment control 41 in the user interface.

Step 304: Receive a manual brightness increase signal acting on the screen backlight brightness adjustment control.

Further, the user manually adjusts the brightness of the screen backlight through the screen backlight brightness adjustment control, and accordingly, the terminal receives the brightness manual brightness adjustment signal acting on the screen backlight brightness adjustment control.

Optionally, the manual brightness increase signal is triggered by a slider drag operation.

Of course, the user can also manually adjust the screen backlight brightness through the screen backlight brightness adjustment control, or even switch the automatic adjustment to manual adjustment, which is not limited in this embodiment of the present application.

Illustratively, as shown in FIG. 4 , when the user drags the slider in the screen backlight brightness adjustment control 41 to move to the right, the terminal determines that a signal for manual brightness adjustment is received.

Step 305 , determining the increase range indicated by the manual luminance increase signal.

In a possible implementation, when the screen backlight brightness adjustment control includes a brightness bar and a slider, the terminal determines the increase range according to the ratio of the drag distance of the slider to the length of the brightness bar. Wherein, the upward adjustment range=(drag distance/brightness bar length)×maximum screen backlight brightness.

For example, when the length of the brightness bar is 200px, the drag distance is 20px, and the maximum brightness of the screen backlight is 450nits, the terminal determines that the upward adjustment range is 45nits.

Of course, for the screen backlight brightness adjustment controls of different expressions, the manner of determining the increase range indicated by the manual brightness increase signal may also be different, which is not limited in this embodiment of the present application.

Step 306: Determine the backlight brightness of the target screen according to the increase range and the upper limit of the automatically adjusted brightness.

Further, on the basis of automatically adjusting the upper limit of the brightness, the terminal determines the backlight brightness of the target screen manually adjusted by the user according to the increase range, and controls the backlight layer of the display screen to adjust the brightness based on the backlight brightness of the target screen. Among them, the target screen backlight brightness = automatic adjustment brightness upper limit + increase range.

With reference to the example in step 305, if the upper limit of the automatic brightness adjustment is 360 nits, and the increase range is 45 nits, then 405 nits is determined as the target screen backlight brightness.

Step 307, if the ambient light intensity decreases, adjust the brightness of the screen backlight according to the decrease range of the ambient light intensity.

During the process of adjusting the brightness of the screen backlight according to the ambient light intensity, the terminal continuously obtains the current ambient light intensity, and when detecting that the ambient light intensity decreases, it further adjusts the screen backlight brightness according to the decrease in the ambient light intensity.

Schematically, as shown in Figure 5, within the interval of (0, automatically adjust the upper limit of brightness), it supports to automatically increase or decrease the brightness of the screen backlight. Support manual adjustment of screen backlight brightness, and support for automatic adjustment.

Optionally, the terminal subtracts the reduction range indicated by the ambient light intensity from the current screen backlight brightness, so as to determine the real-time screen backlight brightness.

It should be noted that since lowering the screen backlight brightness will not increase the power consumption of the terminal, therefore, even if the current screen backlight brightness is greater than the upper limit of the automatically adjusted brightness, the terminal can automatically lower the screen backlight brightness without requiring the user to manually lower the screen backlight brightness to After the upper limit of brightness is automatically adjusted, it is automatically lowered.

In this embodiment, the terminal receives the signal of manual brightness increase through the screen backlight brightness adjustment control, and manually adjusts the increase range indicated by the signal according to the brightness, and adjusts the brightness on the basis of automatically adjusting the upper limit of the brightness, so as to ensure that the screen can be clearly displayed according to the manual adjustment by the user. .

In addition, when the terminal detects that the ambient light intensity has decreased, it adjusts the screen backlight brightness according to the reduction range of the ambient light intensity, so as to avoid manual adjustment by the user, thereby improving the adjustment efficiency of the screen backlight brightness.

In a possible implementation manner, the ambient light intensity threshold in the above embodiment is not a fixed value, but is dynamically determined by the terminal according to the current remaining power situation. On the basis of the embodiment shown in FIG. 3 , as shown in FIG. 6 , after the above step 301 , the following steps are further included.

Step 308, obtaining the current remaining power.

The current remaining power can be expressed in the form of a percentage of the battery power.

For example, the terminal obtains that the current remaining power is 80%.

Step 309: Determine the upper limit of the automatically adjusted brightness according to the current remaining power, and the upper limit of the automatically adjusted brightness has a positive correlation with the current remaining power.

When the current remaining power is sufficient, even if the screen backlight brightness is automatically adjusted to a higher value, it will not have a great impact on the battery life of the terminal; and when the current remaining power is insufficient, automatically adjusting the screen backlight brightness to a higher value will cause The battery life of the terminal has a great impact.

Therefore, in order to reduce the user's manual operation of adjusting the brightness under the premise of ensuring the battery life of the terminal, the terminal dynamically determines the upper limit of the automatic brightness adjustment according to the current remaining power. The larger the value, the higher the upper limit of the automatically adjusted brightness. Accordingly, the terminal can automatically adjust the brightness of the screen backlight within a larger brightness adjustment range, so as to better adapt to the ambient light.

In a possible implementation manner, the terminal pre-establishes a corresponding relationship between the remaining power range and the upper limit of the automatic brightness adjustment, and after obtaining the current remaining power, first determines the remaining power range to which the current remaining power belongs, and then based on the corresponding relationship Determine the upper limit of the automatic brightness adjustment corresponding to the remaining power range. Illustratively, the corresponding relationship between the remaining power range and the upper limit of the automatically adjusted brightness is shown in Table 1.

Table I

Remaining battery range Automatically adjust the brightness limit 80%-100% 450nits 60%-80% 400nits 50%-60% 380nits 0%-50% 340nits

In other possible implementation manners, the terminal may also calculate the upper limit of the automatically adjusted brightness corresponding to the current remaining power according to a preset formula, which is not limited in this embodiment of the present application.

Step 310: Determine an ambient light intensity threshold according to the upper limit of the automatically adjusted brightness, and the threshold of the ambient light intensity has a positive correlation with the upper limit of the automatically adjusted brightness.

Further, according to the determined upper limit of the automatically adjusted brightness, the terminal determines the threshold value of the ambient light intensity, that is, determines the range of ambient light intensity applicable to the automatic adjustment of the brightness of the screen backlight, wherein the threshold value of the ambient light intensity is positively correlated with the upper limit of the automatically adjusted brightness, that is, The higher the upper limit of the automatic brightness adjustment, the larger the ambient light intensity threshold, and the larger the ambient light intensity range that the terminal can adapt to.

In a possible implementation manner, the terminal pre-establishes a correspondence between the upper limit of the automatically adjusted brightness and the threshold of the ambient light intensity, and after the upper limit of the automatically adjusted brightness is determined, the threshold of the ambient light intensity is determined based on the correspondence. Illustratively, the corresponding relationship between the upper limit of the dynamic adjustment brightness and the threshold value of the ambient light intensity is shown in Table 2.

Table II

After determining the ambient light intensity threshold and the upper limit of the automatically adjusted brightness, the terminal continues to perform step 302 to implement adaptive adjustment of the screen backlight brightness.

In this embodiment, the terminal dynamically determines the ambient light intensity threshold and the upper limit of automatic brightness adjustment according to the current remaining power, so that when the power is sufficient, the terminal can adjust the screen backlight brightness within a larger automatic brightness adjustment interval; In this way, the terminal can narrow the automatic brightness adjustment interval and avoid automatically adjusting the screen backlight to an excessively high brightness, thereby reducing the power consumption of the terminal and ensuring the battery life of the terminal.

When the power of the terminal is sufficient, in order to ensure the clear display of the screen in a high-light environment, the terminal is allowed to automatically set the brightness of the screen backlight to a value greater than the upper limit of the automatically adjusted brightness. The screen backlight brightness is set to be greater than the automatic adjustment brightness limit. In a possible implementation manner, the terminal acquires the current remaining power after acquiring the ambient light intensity.

If the current remaining power is lower than the power threshold and the ambient light intensity is greater than the ambient light intensity threshold, the screen backlight brightness will be set to the upper limit of the automatic brightness adjustment; on the contrary, if the current remaining power is higher than the power threshold and the ambient light intensity is greater than the ambient light If the intensity threshold is set, the screen backlight brightness is automatically adjusted according to the ambient light intensity, wherein the adjusted screen backlight brightness is greater than the upper limit of the automatically adjusted brightness. For example, the charge threshold is 60% of the battery capacity

Under normal circumstances, when a user is watching the content in a static screen, such as viewing time under the lock screen interface or reading an e-book, even if the screen backlight brightness is low, the user can know the displayed content through repeated viewing, which has little impact on the user's use. ; When watching dynamic pictures, such as watching videos or playing games, the low brightness of the screen backlight will affect normal use. In a possible implementation manner, after acquiring the ambient light intensity, the terminal acquires the screen type of the user interface. If the picture type is static picture and the ambient light intensity is greater than the ambient light intensity threshold, set the screen backlight brightness to the upper limit of automatic brightness adjustment; if the picture type is dynamic picture and the ambient light intensity is greater than the ambient light intensity threshold, the ambient light The intensity automatically adjusts the brightness of the screen backlight, wherein the adjusted screen backlight brightness is greater than the upper limit of the automatically adjusted brightness.

Optionally, the static picture includes at least one of the following: a lock screen interface, an e-book interface, and a message viewing interface; the dynamic picture includes at least one of the following: a game interface, a video interface,

In other possible implementations, the terminal may also obtain the historical average usage duration of the foreground application, and when the historical average usage duration is less than the duration threshold (for example, 5 minutes) and the ambient light intensity is greater than the ambient light intensity threshold, the screen is backlit The brightness is set to automatically adjust the upper limit of the brightness; when the historical average usage time is greater than the duration threshold (indicating that the foreground application needs to be used for a long time), and the ambient light intensity is greater than the ambient light intensity threshold, the screen backlight brightness is automatically adjusted according to the ambient light intensity (after adjustment) The brightness of the screen backlight is greater than the automatic adjustment brightness limit). This embodiment of the present application does not limit this.

Please refer to FIG. 7 , which shows a structural block diagram of an apparatus for adjusting the brightness of a screen backlight provided by an embodiment of the present application. The device for adjusting the brightness of the screen backlight can be implemented as all or a part of the terminal through software, hardware or a combination of the two. The device includes:

The ambient light acquisition module 710 is configured to acquire the ambient light intensity when the screen backlight brightness automatic adjustment function is enabled;

a first adjustment module 720, configured to set the brightness of the screen backlight to an upper limit of the automatically adjusted brightness if the ambient light intensity is greater than an ambient light intensity threshold, and the upper limit of the automatically adjusted brightness is less than the maximum value of the brightness of the screen backlight;

The second adjustment module 730 is configured to, when receiving a manual brightness increase signal, increase the brightness of the screen backlight according to the manual brightness increase signal.

Optionally, the second adjustment module 720 is used for:

When the manual brightness increase signal is received, the brightness of the screen backlight is increased on the basis of the upper limit of the automatically adjusted brightness according to the increase range indicated by the manual brightness increase signal.

Optionally, the second adjustment module 720 is specifically used for:

When receiving the manual adjustment instruction of screen backlight brightness, display the screen backlight brightness adjustment control, and the initial brightness indicated by the screen backlight brightness adjustment control is the upper limit of the automatically adjusted brightness;

receiving the brightness manual up-adjustment signal acting on the screen backlight brightness adjustment control;

determining the magnitude of the upward adjustment indicated by the manual brightness upward adjustment signal;

The target screen backlight brightness is determined according to the increase range and the upper limit of the automatically adjusted brightness, the target screen backlight brightness=the upper limit of the automatically adjusted brightness+the increase range.

Optionally, the device further includes:

A third adjustment module 740, configured to adjust the brightness of the screen backlight within an automatic brightness adjustment interval according to the ambient light intensity if the ambient light intensity is less than the ambient light intensity threshold;

Wherein, the brightness of the screen backlight is positively correlated with the intensity of the ambient light, and the maximum value of the automatic brightness adjustment interval is the upper limit of the automatic brightness adjustment.

Optionally, the device further includes:

A down-regulation module, configured to down-regulate the screen backlight brightness according to the reduction range of the ambient light intensity if the ambient light intensity decreases.

Optionally, the device further includes:

The power acquisition module is used to obtain the current remaining power;

The first adjustment module 720 is used for:

If the current remaining power is lower than the power threshold, and the ambient light intensity is greater than the ambient light intensity threshold, the screen backlight brightness is set to the upper limit of the automatically adjusted brightness.

Optionally, the device further includes:

Power acquisition module to obtain the current remaining power;

a first determining module, configured to determine the upper limit of the automatically adjusted brightness according to the current remaining power, and the upper limit of the automatically adjusted brightness is positively correlated with the current remaining power;

The second determination module is configured to determine the ambient light intensity threshold according to the automatically adjusted brightness upper limit, where the ambient light intensity threshold is positively correlated with the automatically adjusted brightness upper limit.

Optionally, the device method further includes:

a type acquisition module, used for acquiring the picture type of the user interface, and the picture type includes a static picture and a dynamic picture;

The first adjustment module 720 is used for:

If the picture type is the static picture and the ambient light intensity is greater than the ambient light intensity threshold, the screen backlight brightness is set to the upper limit of the automatically adjusted brightness.

To sum up, in the embodiment of the present application, in the state where the function of automatically adjusting the brightness of the screen backlight is enabled, by obtaining the ambient light intensity, when the ambient light intensity is greater than the ambient light intensity threshold, the screen backlight brightness is set to the upper limit of the automatically adjusted brightness , and when further receiving a signal of manual brightness adjustment, the brightness of the screen backlight will be increased according to the signal; since the upper limit of the automatic brightness adjustment is less than the maximum value of the brightness of the screen backlight, it can be avoided to directly increase the brightness of the screen backlight to the maximum in the case of strong ambient light The user can manually increase the brightness of the screen backlight according to the requirements, so as to ensure that the content is displayed clearly in the case of strong ambient light.

In this embodiment, the terminal receives the signal of manual brightness increase through the screen backlight brightness adjustment control, and manually adjusts the increase range indicated by the signal according to the brightness, and adjusts the brightness on the basis of automatically adjusting the upper limit of the brightness, so as to ensure that the screen can be clearly displayed according to the manual adjustment by the user. .

In addition, when the terminal detects that the ambient light intensity has decreased, it adjusts the screen backlight brightness according to the reduction range of the ambient light intensity, so as to avoid manual adjustment by the user, thereby improving the adjustment efficiency of the screen backlight brightness.

In this embodiment, the terminal dynamically determines the ambient light intensity threshold and the upper limit of automatic brightness adjustment according to the current remaining power, so that when the power is sufficient, the terminal can adjust the screen backlight brightness within a larger automatic brightness adjustment interval; In this way, the terminal can narrow the automatic brightness adjustment interval and avoid automatically adjusting the screen backlight to an excessively high brightness, thereby reducing the power consumption of the terminal and ensuring the battery life of the terminal.

Embodiments of the present application further provide a computer-readable medium, where at least one instruction is stored in the computer-readable medium, and the at least one instruction is loaded and executed by the processor to realize the brightness of the screen backlight as described in the above embodiments adjustment method.

Embodiments of the present application further provide a computer program product, where the computer program product stores at least one instruction, and the at least one instruction is loaded and executed by the processor to implement the method for adjusting the brightness of a screen backlight as described in the above embodiments .

Those skilled in the art should realize that, in one or more of the above examples, the functions described in the embodiments of the present application may be implemented by hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage medium can be any available medium that can be accessed by a general purpose or special purpose computer.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the protection of the present application. within the range.

Claims (11)

1. A screen backlight brightness adjusting method is characterized by comprising the following steps:

when the automatic screen backlight brightness adjusting function is started, acquiring the ambient light intensity;

if the ambient light intensity is greater than the ambient light intensity threshold, setting the screen backlight brightness as an automatic brightness adjusting upper limit, and displaying a quick adjusting control, wherein the automatic brightness adjusting upper limit is smaller than the screen backlight brightness maximum value and is determined according to the current residual capacity, the automatic brightness adjusting upper limit is in positive correlation with the current residual capacity, and the quick adjusting control is used for triggering the screen backlight brightness adjusting control;

and when a manual brightness up-regulation signal acting on the screen backlight brightness regulation control is received, the screen backlight brightness is up-regulated according to the manual brightness up-regulation signal, and the screen backlight brightness indicated by the manual brightness up-regulation signal is greater than the automatic regulation brightness upper limit and is less than or equal to the maximum screen backlight brightness.

2. The method of claim 1, wherein the adjusting the screen backlight brightness according to the brightness manual up-regulation signal when receiving the brightness manual up-regulation signal acting on the screen backlight brightness regulation control comprises:

and when the manual brightness up-regulation signal acting on the screen backlight brightness regulation control is received, the screen backlight brightness is up-regulated on the basis of the automatic regulation brightness upper limit according to the up-regulation amplitude indicated by the manual brightness up-regulation signal.

3. The method of claim 2, wherein the step of adjusting the screen backlight brightness based on the automatically adjusted brightness upper limit according to the brightness manual up-regulation amplitude indicated by the brightness manual up-regulation signal when the brightness manual up-regulation signal acting on the screen backlight brightness regulation control is received comprises:

when a screen backlight brightness manual adjustment instruction is received, displaying the screen backlight brightness adjustment control, wherein the initial brightness indicated by the screen backlight brightness adjustment control is the automatic adjustment brightness upper limit;

receiving the manual brightness up-regulation signal acting on the screen backlight brightness regulation control;

determining the upshifting amplitude indicated by the luminance manual upshifting signal;

and determining the target screen backlight brightness according to the up-regulation amplitude and the automatic regulation brightness upper limit, wherein the target screen backlight brightness is the automatic regulation brightness upper limit plus the up-regulation amplitude.

4. The method of any of claims 1 to 3, wherein after said obtaining the ambient light intensity, the method further comprises:

if the ambient light intensity is smaller than the ambient light intensity threshold value, adjusting the screen backlight brightness in an automatic brightness adjusting interval according to the ambient light intensity;

the screen backlight brightness and the ambient light intensity are in positive correlation, and the maximum value of the automatic brightness adjusting interval is the automatic brightness adjusting upper limit.

5. The method according to any one of claims 1 to 3, wherein after the screen backlight brightness is adjusted up according to the brightness manual up-regulation signal when the brightness manual up-regulation signal is received, the method further comprises:

and if the ambient light intensity is reduced, the screen backlight brightness is adjusted downwards according to the reduction range of the ambient light intensity.

6. The method of any of claims 1 to 3, wherein after said obtaining the ambient light intensity, the method further comprises:

acquiring current residual electric quantity;

if the ambient light intensity is greater than the ambient light intensity threshold, setting the screen backlight brightness as an upper brightness limit of automatic adjustment, including:

and if the current residual electric quantity is lower than an electric quantity threshold value and the ambient light intensity is greater than the ambient light intensity threshold value, setting the screen backlight brightness as an automatic brightness adjustment upper limit.

7. The method of any of claims 1 to 3, wherein after said obtaining the ambient light intensity, the method further comprises:

acquiring the current residual electric quantity;

and determining the ambient light intensity threshold according to the automatically-adjusted brightness upper limit, wherein the ambient light intensity threshold and the automatically-adjusted brightness upper limit are in positive correlation.

8. The method of any of claims 1 to 3, wherein after said obtaining the ambient light intensity, the method further comprises:

acquiring a picture type of a user interface, wherein the picture type comprises a static picture and a dynamic picture;

if the ambient light intensity is greater than the ambient light intensity threshold, setting the screen backlight brightness as an upper brightness limit of automatic adjustment, including:

and if the picture type is the static picture and the ambient light intensity is greater than the ambient light intensity threshold value, setting the screen backlight brightness as an automatic brightness adjustment upper limit.

9. A screen backlight brightness adjustment apparatus, comprising:

the ambient light obtaining module is used for obtaining the ambient light intensity when the automatic screen backlight brightness adjusting function is started;

the first adjusting module is used for setting the screen backlight brightness to an automatic adjustment brightness upper limit and displaying a quick adjusting control if the ambient light intensity is greater than an ambient light intensity threshold, wherein the automatic adjustment brightness upper limit is smaller than the screen backlight brightness maximum value and is determined according to the current residual capacity, the automatic adjustment brightness upper limit is in positive correlation with the current residual capacity, and the quick adjusting control is used for triggering the display screen backlight brightness adjusting control;

and the second adjusting module is used for adjusting the screen backlight brightness according to the manual brightness adjusting signal when receiving the manual brightness adjusting signal acting on the screen backlight brightness adjusting control, wherein the screen backlight brightness indicated by the manual brightness adjusting signal is greater than the automatic adjustment brightness upper limit and is less than or equal to the maximum screen backlight brightness.

10. A terminal, characterized in that the terminal comprises a processor and a memory; the memory stores at least one instruction for execution by the processor to implement the screen backlight brightness adjustment method of any of claims 1-8.

11. A computer-readable storage medium storing at least one instruction for execution by a processor to implement the screen backlight brightness adjustment method of any of claims 1-8.

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