CN111292690B

CN111292690B - Screen backlight brightness adjusting method and device

Info

Publication number: CN111292690B
Application number: CN201811495983.5A
Authority: CN
Inventors: 李国盛; 纪东磊
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2018-12-07
Filing date: 2018-12-07
Publication date: 2021-06-29
Anticipated expiration: 2038-12-07
Also published as: CN111292690A

Abstract

The disclosure relates to a screen backlight brightness adjusting method and device. The method comprises the following steps: monitoring the ambient light intensity, and acquiring a second content adaptive backlight control CABC mode corresponding to the preset light intensity range when the ambient light intensity belongs to the preset light intensity range; the power saving level of the second CABC mode is higher than that of the first CABC mode corresponding to the current terminal equipment operation scene; the second CABC mode is used for replacing the first CABC mode, the backlight brightness of the screen is adjusted, the ambient light intensity of the environment where the terminal equipment is located is taken into consideration, the scheme that the CABC mode with different power saving levels is selected by combining the ambient light where the terminal equipment is located is provided, and the power consumption is effectively reduced.

Description

Screen backlight brightness adjusting method and device

Technical Field

The present disclosure relates to the field of data processing technologies, and in particular, to a method and an apparatus for adjusting screen backlight brightness.

Background

Content Adaptive Brightness Control (CABC) technology is a kind of backlight power saving technology used in terminals.

The CABC technology can adjust the relation between the gray-scale value of the image and the screen backlight brightness according to the image displayed on the screen, and basically keeps the display effect of the image while effectively reducing the screen backlight brightness. For example, increasing the grayscale value of an image by 30% brightens the image and decreasing the backlight brightness of the LCD screen by 30% dims the image, so that the brightness of the image is substantially consistent before and after processing, but the backlight power consumption is reduced by 30%.

Disclosure of Invention

To overcome the problems in the related art, embodiments of the present disclosure provide a method and an apparatus for adjusting the brightness of a screen backlight. The technical scheme is as follows:

according to a first aspect of the embodiments of the present disclosure, there is provided a screen backlight brightness adjustment method, including:

monitoring the intensity of ambient light;

when the ambient light intensity belongs to a preset light intensity range, acquiring a second content adaptive backlight control CABC mode corresponding to the preset light intensity range; the power saving level of the second CABC mode is higher than that of the first CABC mode corresponding to the current terminal equipment operation scene;

and replacing the first CABC mode with the second CABC mode, and adjusting the screen backlight brightness.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: monitoring the ambient light intensity, and acquiring a second content adaptive backlight control CABC mode corresponding to the preset light intensity range when the ambient light intensity belongs to the preset light intensity range; the power saving level of the second CABC mode is higher than that of the first CABC mode corresponding to the current terminal equipment operation scene; the second CABC mode is used for replacing the first CABC mode, the backlight brightness of the screen is adjusted, the ambient light intensity of the environment where the terminal equipment is located is taken into consideration, the scheme that the CABC mode with different power saving levels is selected by combining the ambient light where the terminal equipment is located is provided, and the power consumption is effectively reduced.

In one embodiment, the replacing the first cabac mode with the second cabac mode, after the adjusting the screen backlight brightness, further includes:

and when the ambient light intensity is detected to be smaller than the preset light intensity, replacing the second CABC mode with the first CABC mode, and adjusting the screen backlight brightness.

In one embodiment, the acquiring the second CABC mode corresponding to the preset light intensity range includes:

acquiring a second CABC mode corresponding to the preset light intensity range from a preset mapping table; the preset mapping table includes a corresponding relationship between the preset light intensity range and the second CABC mode.

In one embodiment, the monitoring the ambient light intensity comprises:

the ambient light intensity is monitored by a light sensor.

According to a second aspect of the embodiments of the present disclosure, there is provided a screen backlight luminance adjusting apparatus, including:

the monitoring module is used for monitoring the intensity of ambient light;

the acquisition module is used for acquiring a second content adaptive backlight control CABC mode corresponding to a preset light intensity range when the ambient light intensity monitored by the monitoring module belongs to the preset light intensity range; the power saving level of the second CABC mode is higher than that of the first CABC mode corresponding to the current terminal equipment operation scene;

and the adjusting module is used for replacing the first CABC mode with the second CABC mode acquired by the second acquiring module and adjusting the screen backlight brightness.

In one embodiment, the apparatus further comprises: a replacement module;

the replacing module is used for replacing the second CABC mode by the first CABC mode when detecting that the ambient light intensity monitored by the monitoring module is smaller than the preset light intensity, and adjusting the screen backlight brightness.

In one embodiment, the obtaining module comprises: obtaining a submodule;

the obtaining submodule is used for obtaining a second CABC mode corresponding to the preset light intensity range from a preset mapping table; the preset mapping table includes a corresponding relationship between the preset light intensity range and the second CABC mode.

In one embodiment, the monitoring module comprises: a monitoring submodule;

and the monitoring submodule is used for monitoring the ambient light intensity through a light sensor.

According to a third aspect of the embodiments of the present disclosure, there is provided a screen backlight luminance adjusting apparatus including:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to:

monitoring the intensity of ambient light;

According to a fourth aspect of embodiments of the present disclosure, there is provided a computer-readable storage medium having stored thereon computer instructions which, when executed by a processor, implement the steps of the method of any one of the first aspects.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a flowchart illustrating a screen backlight brightness adjustment method according to an exemplary embodiment.

Fig. 2 is a flowchart illustrating a screen backlight brightness adjustment method according to an exemplary embodiment.

Fig. 3 is a flowchart illustrating a screen backlight brightness adjustment method according to an exemplary embodiment.

Fig. 4 is a block diagram illustrating a screen backlight brightness adjustment apparatus according to an exemplary embodiment.

Fig. 5 is a block diagram illustrating a screen backlight luminance adjusting apparatus according to an exemplary embodiment.

Fig. 6 is a block diagram illustrating a second obtaining module in a screen backlight brightness adjusting apparatus according to an exemplary embodiment.

Fig. 7 is a block diagram illustrating a first monitoring module in a screen backlight brightness adjusting apparatus according to an exemplary embodiment.

Fig. 8 is a block diagram illustrating a brightness adjustment apparatus 80 for a screen backlight according to an exemplary embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

At present, with the development of mobile phones, mobile phone screens become larger and thinner, so that it is more and more important to reduce the power consumption of mobile phones under the limited power of batteries. Therefore, many design schemes for reducing the battery power of the mobile phone are generated, and the Content Adaptive Brightness Control (CABC) technology is a scheme for reducing the battery power.

What is the most power consumption of a Light Emitting Diode (LED) screen mobile phone is, one of the screens is absolutely, which is an absolutely power consuming user, and the most important is screen backlight. The working principle of CABC is that the backlight brightness of the screen can be properly reduced according to different display contents, and the gray scale value of the display contents is conveniently improved, so that the aim of approaching the visual effect as much as possible is fulfilled on the premise of saving the electric quantity of the battery.

The current CABC scheme is mature, and the CABC effect is very good at present from the original global overall improvement to the local processing. The power saving level of the CABC may also be adjusted to have different power saving levels by adjusting parameters, and the different power saving levels correspond to different image qualities. Of course, the lower the power saving level is, the closer the image quality is to the original one, and the better the image quality is, so which power saving level is used is also a trade-off between the image quality and the power saving. Therefore, a lower CABC level is always maintained in the application, or different CABC levels are used according to different scenes, so that the aim of saving electricity is fulfilled.

The requirements for screen color accuracy due to different ambient light intensities are different, for example: under the stronger environment of light, the accurate of colour of screen is secondary relatively, because the degree of accuracy that this kind of environment user observed the colour has greatly reduced, therefore even the accurate of colour has reduced, also can't distinguish, in order to reach better power saving effect, still combined the dimension of environment light intensity in this disclosure and confirmed CABC's power saving level to can reach better power saving effect.

Fig. 1 is a flowchart illustrating a screen backlight brightness adjustment method according to an exemplary embodiment, as shown in fig. 1, the method including the following steps S101-S103:

in step S101, the ambient light intensity is monitored.

The ambient light intensity may be monitored by a light sensor.

In step S102, when the ambient light intensity belongs to the preset light intensity range, acquiring a second content adaptive backlight control cabac mode corresponding to the preset light intensity range; the power saving level of the second CABC mode is higher than that of the first CABC mode corresponding to the current terminal equipment operation scene.

In step S103, the first cabac mode is replaced by the second cabac mode, and the screen backlight brightness is adjusted.

And after the second CABC mode is obtained, replacing the first CABC mode by using the second CABC mode to adjust the backlight brightness of the screen, wherein the power saving level of the second CABC mode is greater than that of the first CABC mode corresponding to the current scene of the terminal equipment, so that the power consumption can be further reduced.

The environmental light intensity changes in automatic monitoring to according to the CABC mode that environmental light intensity changes the setting correspondence, it is more intelligent. In a place where the environment of the terminal device is bright, the power consumption can be saved to the maximum extent under the non-inductive condition, so that the service life of the terminal device is longer under the condition of limited power of the terminal device.

Before executing step S101, the following sub-steps may be further included: the method comprises the steps of obtaining a first content adaptive backlight control CABC mode corresponding to a scene where the terminal equipment operates, and adjusting screen backlight brightness according to the first CABC mode.

After the terminal device starts the CABC function, the information of the currently running active processes is inquired, and after the terminal device inquires the information of the currently running active processes, the current running states of the active processes can be obtained, so that the running scene of the terminal device is determined.

For example, the first CABC mode corresponding to a scenario in which the terminal device operates may include, but is not limited to: UI mode, STILL mode, or MOVING mode, wherein: the UI mode is adapted to display a user interface, the STILL mode is adapted to display a STILL image, and the MOVING mode is adapted to display a MOVING image.

The terminal device may dynamically adjust the screen backlight using the selected first CABC mode, for example: the terminal device can adjust the relation between the gray-scale value of the image and the screen backlight brightness, and basically keep the display effect of the image while effectively reducing the screen backlight brightness.

For example, when the terminal device processor transmits a picture data to a driver Integrated Circuit (IC), the content analyzer calculates and counts the picture data, and then determines an adjustment strategy of the first CABC mode according to a set algorithm, for example: automatically increasing the gray scale brightness of the picture by 30 percent (at the moment, the picture becomes bright), and then reducing the backlight brightness by 30 percent (at the moment, the picture becomes dark). Since the picture is subjected to the analyzer circuit to compensate the brightness in advance, the display effect which is almost the same as that of the original circuit can be obtained, and the backlight power consumption is reduced by 30%.

In the process of adjusting the screen backlight brightness according to the first CABC mode corresponding to the scene based on the operation of the terminal equipment, the ambient light intensity can be monitored, at the moment, a plurality of preset light intensity ranges can be set, each preset light intensity range corresponds to a different second CABC mode, the power saving levels of the second CABC modes corresponding to the preset light intensity ranges are all larger than the power saving level of the first CABC mode, after the second CABC mode is obtained, the second CABC mode is used for replacing the first CABC mode, the screen backlight brightness is adjusted, and the power saving level of the second CABC mode is larger than the power saving level of the first CABC mode corresponding to the scene of the operation of the current terminal equipment, so the power consumption can be further reduced.

Through the above analysis, in practical applications, before determining the second CABC mode, the method may further include a step of adjusting according to the first CABC mode, after the adjustment according to the first CABC mode is completed, then obtaining the ambient light intensity, determining the second CABC mode based on the ambient light intensity, and replacing the CABC mode corresponding to the current scenario in which the terminal device operates with the second CABC mode; certainly, the method may also not include the step of adjusting according to the first CABC adjustment mode, directly obtain the ambient light intensity, and directly replace the CABC mode corresponding to the current terminal device operating scene with the second CABC mode after determining the second CABC mode based on the ambient light intensity.

The method takes the ambient light intensity of the environment where the terminal equipment is located into consideration, and provides a scheme for selecting CABC modes with different power saving levels by combining the ambient light where the terminal equipment is located so as to achieve the extremely power saving effect. The problem that the power saving level of the CABC mode in the related technology cannot be too high so that a better power saving effect cannot be achieved is solved. Because the color level of the screen is relatively less important in the environment with strong light, the accuracy of the user in observing the color in such an environment is greatly reduced, and thus the color level cannot be distinguished even if the color level is reduced. Therefore, in the environment, a CABC mode with extremely low power consumption can be made, so that the extremely low power consumption can be realized under the non-inductive condition.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: monitoring the ambient light intensity, and acquiring a second content adaptive backlight control CABC mode corresponding to the preset light intensity range when the ambient light intensity belongs to the preset light intensity range; the power saving level of the second CABC mode is higher than that of the first CABC mode; the second CABC mode is used for replacing the first CABC mode corresponding to the current terminal equipment operation scene, the screen backlight brightness is adjusted, the ambient light intensity of the environment where the terminal equipment is located is taken into consideration, the scheme of selecting the CABC modes with different power saving levels by combining the ambient light where the terminal equipment is located is provided, and the power consumption is effectively reduced.

In one embodiment, the method further comprises: after the first CABC mode is replaced by the second CABC mode and the screen backlight brightness is adjusted, the method further comprises the following steps: and when the detected ambient light intensity is less than the preset light intensity, replacing the second CABC mode by using the first CABC mode, and adjusting the backlight brightness of the screen.

After the screen backlight brightness is adjusted by using the second CABC mode, the ambient light intensity is continuously monitored, and if the monitored ambient light intensity is still within a preset light intensity range corresponding to the current second CABC mode, the screen backlight brightness is continuously adjusted by using the second CABC mode; if the monitored ambient light intensity is changed into other preset light intensity ranges, replacing a second CABC mode with CABC modes corresponding to the other preset light intensity ranges to adjust the screen backlight brightness; and if the monitored ambient light intensity is changed to be less than the preset light intensity, replacing the second CABC mode with the first CABC mode, and adjusting the backlight brightness of the screen.

The preset light intensity can be obtained according to the ambient light intensity in the normal light environment, and the normal light environment at the moment is an environment which influences the watching of the user due to the color standard of the screen. That is, the first CABC mode is a corresponding CABC mode in a normal light environment of a scene in which the terminal device operates, and therefore, when entering the normal light environment, the second CABC mode under strong light is returned to the first CABC mode in the original normal light environment.

Wherein the preset light intensity is smaller than the minimum value in all the preset light intensity ranges.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: when the light enters the normal light environment, the CABC mode is adjusted back to the original normal CABC mode, and the power-saving effect is achieved when the non-inductive switching is carried out along with the difference of the environment.

In one embodiment, the step S103 may be implemented as the following steps: acquiring a second CABC mode corresponding to a preset light intensity range from a preset mapping table; the preset mapping table includes a corresponding relationship between a preset light intensity range and the second CABC mode.

For example, as shown in the preset mapping table shown in table 1, three preset light intensity ranges are preset in the table 1: 1000lux to 2000 lux; 2001lux-3000lux and 3001lux-4000lux, wherein 1000lux-2000lux corresponds to the second CABC pattern 1; 2001lux-3000lux corresponds to the second CABC mode 2; 3001lux-4000lux corresponds to the second CABC mode 3:

TABLE 1

Presetting the light intensity range	Second CABC mode
		1000lux-2000lux	Second CABC mode 1
2001lux-3000lux	Second CABC mode 2
		3001lux-4000lux	Second CABC mode 3

After obtaining the ambient light intensity value, from above-mentioned table 1, alright obtain ambient light intensity preset light intensity range, and then obtain the second cabac mode that this preset light intensity range corresponds, for example: when the obtained ambient light intensity value is 2500lux, by searching the table 1, it can be obtained that 2500lux belongs to the preset light intensity range 2001lux-3000lux, at this time, the corresponding second CABC mode is the second CABC mode 2, and the screen backlight brightness is adjusted by using the second CABC mode 2.

Fig. 2 is a flowchart illustrating a screen backlight brightness adjustment method according to an exemplary embodiment, as shown in fig. 2, the method includes the following steps S201-S206:

in step S201, a scene in which the terminal device operates is determined.

In step S202, a first content adaptive backlight control CABC mode corresponding to a scene in which the terminal device operates is acquired.

In step S203, the screen backlight brightness is adjusted according to the first CABC mode.

In step S204, the ambient light intensity is monitored; when the ambient light intensity falls within the preset light intensity range, go to step S205; when the ambient light intensity does not fall within the preset light intensity range, the step S204 is continuously performed.

A thread can be arranged in an operating system to monitor the change of the ambient light intensity in real time through a light sensor.

In step S205, a second CABC mode corresponding to the preset light intensity range is obtained; the power saving level of the second CABC mode is higher than that of the first CABC mode.

Assuming that the monitored ambient light intensity is 2500lux, it is determined through the lookup table 1 that the ambient light intensity belongs to the preset light intensity range 3001lux-4000lux, and at this time, the corresponding second CABC mode is the second CABC mode 2.

In step S206, the screen backlight brightness is adjusted by replacing the first cabac mode with the second cabac mode.

Continuing with the example above, screen backlight brightness is adjusted using the second CABC mode 2 instead of the first CABC mode described above. Continuously monitoring the ambient light intensity, assuming that the continuously monitored ambient light intensity is changed to 1900lux, determining that the ambient light intensity belongs to the preset light intensity range of 1000lux-2000lux through the lookup table 1, and at this time, if the corresponding second CABC mode is the second CABC mode 1, replacing the second CABC mode 2 with the second CABC mode 1 to adjust the screen backlight brightness, and repeatedly executing the step S204-the step S206; and when the detected ambient light intensity is smaller than the preset light intensity, the first CABC mode is used for replacing the second CABC mode, and the backlight brightness of the screen is adjusted.

For example: the preset light intensity is 999lux, and when the detection environment light intensity is 800lux, the environment light intensity is less than the preset light intensity, and then, the screen backlight brightness is adjusted by using the first CABC mode.

Fig. 3 is a flowchart illustrating a screen backlight brightness adjustment method according to an exemplary embodiment, as shown in fig. 3, the method including the following steps S301 to S303:

in step S301, ambient light intensity is monitored by a light sensor; when the ambient light intensity falls within the preset light intensity range, executing step S302; when the ambient light intensity does not fall within the preset light intensity range, step S301 is executed.

In step S302, a second content adaptive backlight control CABC mode corresponding to the preset light intensity range is obtained; the power saving level of the second CABC mode is higher than that of the first CABC mode corresponding to the current terminal equipment operation scene.

In step S303, the screen backlight brightness is adjusted by replacing the first cabac mode with the second cabac mode.

The following are embodiments of the disclosed apparatus that may be used to perform embodiments of the disclosed methods.

Fig. 4 is a block diagram illustrating a screen backlight brightness adjustment apparatus, which may be implemented as part or all of an electronic device by software, hardware, or a combination of both, according to an exemplary embodiment. As shown in fig. 4, the screen backlight brightness adjusting apparatus includes:

the monitoring module 11 is used for monitoring the intensity of ambient light;

an obtaining module 12, configured to obtain a second cabac mode corresponding to a preset light intensity range when the ambient light intensity monitored by the monitoring module 11 belongs to the preset light intensity range; a power saving level of the second CABC mode is higher than a power saving level of the first CABC mode;

an adjusting module 13, configured to replace the first cabac mode with the second cabac mode acquired by the acquiring module 12, and adjust the screen backlight brightness.

In one embodiment, as shown in fig. 5, the apparatus further comprises: a replacement module 14;

the replacing module 14 is configured to replace the second cabac mode with the first cabac mode when detecting that the ambient light intensity monitored by the monitoring module 11 is smaller than a preset light intensity, and adjust the screen backlight brightness.

In one embodiment, as shown in fig. 6, the obtaining module 12 includes: obtaining a submodule 121;

the obtaining submodule 121 is configured to obtain a second CABC mode corresponding to the preset light intensity range from a preset mapping table; the preset mapping table includes a corresponding relationship between the preset light intensity range and the second CABC mode.

In one embodiment, as shown in fig. 7, the monitoring module 11 includes: a monitoring submodule 111;

the monitoring submodule 111 is configured to monitor the ambient light intensity through a light sensor.

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to:

monitoring the intensity of ambient light;

The processor may be further configured to:

the replacing the first cabac mode with the second cabac mode, after adjusting the screen backlight brightness, further includes:

The obtaining a second CABC mode corresponding to the preset light intensity range includes:

The monitoring of the ambient light intensity includes:

the ambient light intensity is monitored by a light sensor.

With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.

Fig. 8 is a block diagram illustrating a screen backlight brightness adjustment apparatus 80, which is suitable for a terminal device, according to an exemplary embodiment. For example, the apparatus 80 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.

The apparatus 80 may include one or more of the following components: processing component 802, memory 804, power component 806, multimedia component 808, audio component 810, input/output (I/O) interface 812, sensor component 814, and communication component 816.

The processing component 802 generally controls overall operation of the device 80, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 802 may include one or more processors 820 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interaction between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.

The memory 804 is configured to store various types of data to support operations at the apparatus 80. Examples of such data include instructions for any application or method operating on the device 80, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 804 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.

The power supply component 806 provides power to the various components of the device 80. The power components 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device 80.

The multimedia component 808 includes a screen that provides an output interface between the device 80 and the user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the device 80 is in an operating mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the apparatus 80 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.

The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.

The sensor assembly 814 includes one or more sensors for providing various aspects of state assessment for the device 80. For example, the sensor assembly 814 may detect the open/closed status of the device 80, the relative positioning of the components, such as a display and keypad of the device 80, the change in position of the device 80 or a component of the device 80, the presence or absence of user contact with the device 80, the orientation or acceleration/deceleration of the device 80, and the change in temperature of the device 80. Sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 816 is configured to facilitate wired or wireless communication between the apparatus 80 and other devices. The device 80 may access a wireless network based on a communication standard, such as WiFi, 2G, 3G, or 4G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the apparatus 80 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.

In an exemplary embodiment, a non-transitory computer-readable storage medium comprising instructions, such as the memory 804 comprising instructions, executable by the processor 820 of the apparatus 80 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.

A non-transitory computer readable storage medium, wherein instructions, when executed by a processor of an apparatus 80, enable the apparatus 80 to perform the screen backlight brightness adjustment method described above, the method comprising:

monitoring the intensity of ambient light;

The monitoring of the ambient light intensity includes:

the ambient light intensity is monitored by a light sensor.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

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

monitoring the intensity of ambient light;

when the ambient light intensity belongs to a preset light intensity range, acquiring a second CABC mode corresponding to the preset light intensity range; the power saving level of the second CABC mode is higher than that of the first CABC mode corresponding to the current terminal equipment operation scene;

2. The method of claim 1, wherein replacing the first CABC mode with the second CABC mode further comprises, after adjusting the screen backlight brightness:

3. The method of claim 1, wherein the obtaining the second CABC mode corresponding to the preset light intensity range comprises:

4. The method of claim 1, wherein the monitoring the ambient light intensity comprises:

the ambient light intensity is monitored by a light sensor.

5. A screen backlight brightness adjusting apparatus, comprising:

the monitoring module is used for monitoring the intensity of ambient light;

the acquisition module is used for acquiring a second CABC mode corresponding to a preset light intensity range when the ambient light intensity monitored by the monitoring module belongs to the preset light intensity range; the power saving level of the second CABC mode is higher than that of the first CABC mode corresponding to the current terminal equipment operation scene;

and the adjusting module is used for replacing the first CABC mode with the second CABC mode acquired by the acquiring module and adjusting the screen backlight brightness.

6. The apparatus of claim 5, further comprising: a replacement module;

7. The apparatus of claim 5, wherein the obtaining module comprises: obtaining a submodule;

8. The apparatus of claim 5, wherein the monitoring module comprises: a monitoring submodule;

9. A screen backlight brightness adjusting apparatus, comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to:

monitoring the intensity of ambient light;

10. A computer-readable storage medium having stored thereon computer instructions, which when executed by a processor, carry out the steps of the method according to any one of claims 1 to 4.