CN114596819A - Brightness adjustment method and related device - Google Patents

Abstract

The application discloses a brightness adjusting method and a related device, which are applied to electronic equipment, wherein the method comprises the following steps: acquiring a current display brightness grade, wherein the electronic equipment comprises N display brightness grades, the current display brightness grade is any one of the N display brightness grades, and N is an integer greater than 1; when the current display brightness level is lower than a preset threshold value, determining a target display brightness level corresponding to the current display brightness level, wherein the target display brightness level is an expansion level corresponding to the current display brightness level; and adjusting the backlight brightness according to the target display brightness level. By adopting the embodiment of the application, the backlight shaking phenomenon can be avoided in the backlight brightness adjusting process in the low-brightness interval.

Description

Brightness adjustment method and related device

technical field

The present application relates to the field of display technology, and in particular, to a method for adjusting brightness and a related device.

Background technique

With the widespread application of electronic devices (such as mobile phones, tablet computers, etc.), electronic devices can support more and more applications, and their functions are becoming more and more powerful. Electronic devices are developing in the direction of diversification and personalization. Indispensable electronic supplies.

At present, backlight adjustment technology has also been widely used as a basic function of electronic equipment. However, taking a mobile phone as an example, the backlight scheme is basically what the screen supplier provides, and the mobile phone manufacturer uses it directly. However, users will find that in the low brightness range, drag the brightness bar and find the backlight jitter phenomenon. Therefore, the problem of how to avoid the phenomenon of backlight jitter during the backlight brightness adjustment process in the low brightness range needs to be solved urgently.

SUMMARY OF THE INVENTION

Embodiments of the present application provide a brightness adjustment method and a related device, which can avoid the phenomenon of backlight jitter during a backlight brightness adjustment process in a low brightness range.

In a first aspect, an embodiment of the present application provides a brightness adjustment method, which is applied to an electronic device, and the method includes:

Obtaining a current display brightness level, the electronic device includes N display brightness levels, the current display brightness level is any display brightness level in the N display brightness levels, and N is an integer greater than 1;

When the current display brightness level is lower than a preset threshold, determining a target display brightness level corresponding to the current display brightness level, where the target display brightness level is an extended level corresponding to the current display brightness level;

The backlight brightness is adjusted according to the target display brightness level.

In a second aspect, an embodiment of the present application provides an apparatus for adjusting brightness, which is applied to an electronic device. The apparatus includes: an acquisition unit, an expansion unit, and an adjustment unit, wherein,

The acquisition unit is configured to acquire the current display brightness level, the electronic device includes N display brightness levels, the current display brightness level is any display brightness level in the N display brightness levels, and N is greater than 1 the integer;

The expansion unit is configured to determine a target display brightness level corresponding to the current display brightness level when the current display brightness level is lower than a preset threshold, where the target display brightness level corresponds to the current display brightness level extension level;

The adjustment unit is configured to adjust the backlight brightness according to the target display brightness level.

In a third aspect, embodiments of the present application provide an electronic device, the electronic device includes a processor and a memory, the memory is used to store one or more programs, and is configured to be executed by the processor, the program includes a program for Perform some or all of the steps as described by the first party.

In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes a computer to execute the computer program as described in the first embodiment of the present application. Some or all of the steps described in an aspect.

In a fifth aspect, an embodiment of the present application provides a computer program product, wherein the computer program product includes a computer program, and the computer program is operable to cause a computer to execute part or all of the first aspect of the embodiment of the present application. step. The computer program product may be a software installation package.

Implementing the embodiments of the present application has the following beneficial effects:

It can be seen that the brightness adjustment method and related device described in the embodiments of the present application are applied to electronic equipment to obtain the current display brightness level. The electronic device includes N display brightness levels, and the current display brightness level is among the N display brightness levels. Any display brightness level of , N is an integer greater than 1; when the current display brightness level is lower than the preset threshold, determine the target display brightness level corresponding to the current display brightness level, and the target display brightness level is the current display brightness level. Expansion level: Adjust the backlight brightness according to the target display brightness level. During the backlight brightness adjustment process in the low-brightness range, the display brightness level is expanded by the number of levels to achieve a delicate and smooth transition between adjacent display brightness levels, thereby avoiding the occurrence of The phenomenon of backlight jitter helps to improve user experience.

Description of drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

1 is a schematic structural diagram of an electronic device provided by an embodiment of the present application;

2 is a schematic diagram of a software structure of an electronic device provided by an embodiment of the present application;

3A is a schematic flowchart of a brightness adjustment method provided by an embodiment of the present application;

FIG. 3B is a schematic diagram illustrating a brightness adjustment method provided by an embodiment of the present application;

FIG. 3C is a schematic diagram illustrating a demonstration of a level quantity extension provided by an embodiment of the present application;

FIG. 3D is another schematic diagram illustrating a class quantity extension provided by an embodiment of the present application;

FIG. 3E is another schematic diagram illustrating a class quantity extension provided by an embodiment of the present application;

4 is a schematic flowchart of another brightness adjustment method provided by an embodiment of the present application;

5 is a schematic flowchart of another brightness adjustment method provided by an embodiment of the present application;

6 is a schematic structural diagram of another electronic device provided by an embodiment of the present application;

FIG. 7 is a block diagram of functional units of a brightness adjustment device provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

In order to better understand the solutions of the embodiments of the present application, related terms and concepts that may be involved in the embodiments of the present application are first introduced below.

The terms "first", "second" and the like in the description and claims of the present application and the above drawings are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "comprising" and "having", and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally also includes For other steps or units inherent to these processes, methods, products or devices.

In specific implementation, in the embodiments of the present application, the electronic devices may include various devices with computer functions, such as handheld devices (smartphones, tablet computers, etc.), in-vehicle devices (navigator, auxiliary reversing system, driving recorder, vehicle-mounted refrigerators, etc.), wearable devices (smart bracelets, wireless headphones, smart watches, smart glasses, etc.), computing devices or other processing devices connected to wireless modems, and various forms of user equipment (UE) , a mobile station (Mobile Station, MS), a virtual reality/augmented reality device, a terminal device (terminal device), etc. The electronic device may also be a base station or a server.

The electronic devices may also include smart home devices, and the smart home devices may be at least one of the following: smart speakers, smart cameras, smart rice cookers, smart wheelchairs, smart massage chairs, smart furniture, smart dishwashers, smart TVs, smart refrigerators, Smart fans, smart heaters, smart drying racks, smart lights, smart routers, smart switches, smart switch panels, smart humidifiers, smart air conditioners, smart doors, smart windows, smart cooktops, smart disinfection cabinets, smart toilets, floor sweeping Robots, etc., are not limited here.

In the first part, the software and hardware operating environment of the technical solution disclosed in this application is introduced as follows.

As shown in the figure, FIG. 1 shows a schematic structural diagram of an electronic device 100 . The electronic device 100 may include a processor 110, an external memory interface 120, an internal memory 121, a universal serial bus (USB) interface 130, a charging management module 140, a power management module 141, a battery 142, an antenna 1, an antenna 2 , mobile communication module 150, wireless communication module 160, audio module 170, speaker 170A, receiver 170B, microphone 170C, headphone jack 170D, sensor module 180, compass 190, motor 191, indicator 192, camera 193, display screen 194 and user A subscriber identification module (SIM) card interface 195 and the like.

It can be understood that the structures illustrated in the embodiments of the present application do not constitute a specific limitation on the electronic device 100 . In other embodiments of the present application, the electronic device 100 may include more or less components than shown, or combine some components, or separate some components, or arrange different components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

The processor 110 may include one or more processing units, for example, the processor 110 may include an application processor AP, a modem processor, a graphics processor GPU, an image signal processor (ISP), a controller, Video codec, digital signal processor (digital signal processor, DSP), baseband processor, and/or neural network processor NPU, etc. Wherein, different processing units may be independent components, or may be integrated in one or more processors. In some embodiments, electronic device 100 may also include one or more processors 110 . The controller can generate an operation control signal according to the instruction operation code and the timing signal, and complete the control of fetching and executing instructions. In some other embodiments, a memory may also be provided in the processor 110 for storing instructions and data. Illustratively, the memory in the processor 110 may be a cache memory. This memory may hold instructions or data that have just been used or recycled by the processor 110 . If the processor 110 needs to use the instruction or data again, it can be called directly from memory. In this way, repeated access is avoided, and the waiting time of the processor 110 is reduced, thereby improving the efficiency of the electronic device 100 in processing data or executing instructions. The processor may also include an image processor, and the image processor may be an image pre-processor (preprocess image signal processor, Pre-ISP), which can be understood as a simplified ISP, which can also perform some image processing operations, for example, can Get image statistics.

In some embodiments, the processor 110 may include one or more interfaces. The interface may include an inter-integrated circuit (I2C) interface, an inter-integrated circuitsound (I2S) interface, a pulse code modulation (PCM) interface, a universal asynchronous transceiver (universal asynchronous transmitter) receiver/transmitter, UART) interface, mobile industry processor interface (mobile industry processor interface, MIPI), general-purpose input/output (GPIO) interface, SIM card interface and/or USB interface, etc. The USB interface 130 is an interface conforming to the USB standard specification, and may specifically be a Mini USB interface, a Micro USB interface, a USB Type C interface, or the like. The USB interface 130 can be used to connect a charger to charge the electronic device 100, and can also be used to transmit data between the electronic device 100 and peripheral devices. The USB interface 130 can also be used to connect an earphone, and play audio through the earphone.

It can be understood that the interface connection relationship between the modules illustrated in the embodiments of the present application is only a schematic illustration, and does not constitute a structural limitation of the electronic device 100 . In other embodiments of the present application, the electronic device 100 may also adopt different interface connection manners in the foregoing embodiments, or a combination of multiple interface connection manners.

The charging management module 140 is used to receive charging input from the charger. The charger may be a wireless charger or a wired charger. In some wired charging embodiments, the charging management module 140 may receive charging input from the wired charger through the USB interface 130 . In some wireless charging embodiments, the charging management module 140 may receive wireless charging input through a wireless charging coil of the electronic device 100 . While the charging management module 140 charges the battery 142 , it can also supply power to the electronic device through the power management module 141 .

The power management module 141 is used for connecting the battery 142 , the charging management module 140 and the processor 110 . The power management module 141 receives input from the battery 142 and/or the charging management module 140, and supplies power to the processor 110, the internal memory 121, the external memory, the display screen 194, the camera 193, the wireless communication module 160, and the like. The power management module 141 can also be used to monitor parameters such as battery capacity, battery cycle times, battery health status (leakage, impedance). In some other embodiments, the power management module 141 may also be provided in the processor 110 . In other embodiments, the power management module 141 and the charging management module 140 may also be provided in the same device.

The wireless communication function of the electronic device 100 may be implemented by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, the modulation and demodulation processor, the baseband processor, and the like.

Antenna 1 and Antenna 2 are used to transmit and receive electromagnetic wave signals. Each antenna in electronic device 100 may be used to cover a single or multiple communication frequency bands. Different antennas can also be reused to improve antenna utilization. For example, the antenna 1 can be multiplexed into a diversity antenna of the wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.

The mobile communication module 150 may provide a wireless communication solution including 2G/3G/4G/5G/6G etc. applied on the electronic device 100 . The mobile communication module 150 may include at least one filter, switch, power amplifier, low noise amplifier (low noise amplifier, LNA) and the like. The mobile communication module 150 can receive electromagnetic waves from the antenna 1, filter and amplify the received electromagnetic waves, and transmit them to the modulation and demodulation processor for demodulation. The mobile communication module 150 can also amplify the signal modulated by the modulation and demodulation processor, and then turn it into an electromagnetic wave for radiation through the antenna 1 . In some embodiments, at least part of the functional modules of the mobile communication module 150 may be provided in the processor 110 . In some embodiments, at least part of the functional modules of the mobile communication module 150 may be provided in the same device as at least part of the modules of the processor 110 .

The wireless communication module 160 can provide applications on the electronic device 100 including wireless local area networks (WLAN) (such as wireless fidelity (Wi-Fi) networks), bluetooth (BT), global navigation satellite system Wireless communication solutions such as global navigation satellite system (GNSS), frequency modulation (FM), near field communication (NFC), and infrared (IR). The wireless communication module 160 may be one or more devices integrating at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2 , frequency modulates and filters the electromagnetic wave signals, and sends the processed signals to the processor 110 . The wireless communication module 160 can also receive the signal to be sent from the processor 110 , perform frequency modulation on it, amplify the signal, and then convert it into an electromagnetic wave for radiation through the antenna 2 .

The electronic device 100 implements a display function through a GPU, a display screen 194, an application processor, and the like. The GPU is a microprocessor for image processing, and is connected to the display screen 194 and the application processor. The GPU is used to perform mathematical and geometric calculations for graphics rendering. Processor 110 may include one or more GPUs that execute program instructions to generate or alter display information.

The display screen 194 is used to display images, videos, and the like. Display screen 194 includes a display panel. The display panel can be a liquid crystal display (LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode or an active-matrix organic light-emitting diode (active-matrix organic light-emitting diode). , AMOLED), flexible light-emitting diode (flex light-emitting diode, FLED), mini light-emitting diode (mini light-emitting diode, miniLED), MicroLed, Micro-oLed, quantum dot light emitting diode (quantum dot light emitting diode, QLED), etc. . In some embodiments, electronic device 100 may include one or more display screens 194 .

The electronic device 100 may implement a shooting function through an ISP, a camera 193, a video codec, a GPU, a display screen 194, an application processor, and the like.

The ISP is used to process the data fed back by the camera 193 . For example, when taking a photo, the shutter is opened, the light is transmitted to the camera photosensitive element through the lens, the light signal is converted into an electrical signal, and the camera photosensitive element transmits the electrical signal to the ISP for processing, converting it into an image visible to the naked eye. ISP can also perform algorithm optimization on image noise, brightness, and skin tone. ISP can also optimize parameters such as exposure and color temperature of the shooting scene. In some embodiments, the ISP may be provided in the camera 193 .

Camera 193 is used to capture still images or video. The object is projected through the lens to generate an optical image onto the photosensitive element. The photosensitive element may be a charge coupled device (CCD) or a complementary metal-oxide-semiconductor (CMOS) phototransistor. The photosensitive element converts the optical signal into an electrical signal, and then transmits the electrical signal to the ISP to convert it into a digital image signal. The ISP outputs the digital image signal to the DSP for processing. DSP converts digital image signals into standard RGB, YUV and other formats of image signals. In some embodiments, the electronic device 100 may include one or more cameras 193 .

A digital signal processor is used to process digital signals, in addition to processing digital image signals, it can also process other digital signals. For example, when the electronic device 100 selects a frequency point, the digital signal processor is used to perform Fourier transform on the frequency point energy and so on.

Video codecs are used to compress or decompress digital video. The electronic device 100 may support one or more video codecs. In this way, the electronic device 100 can play or record videos in various encoding formats, such as: moving picture experts group (moving picture experts group, MPEG) 1, MPEG2, MPEG3, MPEG4, and so on.

The NPU is a neural-network (NN) computing processor. By drawing on the structure of biological neural networks, such as the transfer mode between neurons in the human brain, it can quickly process the input information, and can continuously learn by itself. Applications such as intelligent cognition of the electronic device 100 can be implemented through the NPU, such as image recognition, face recognition, speech recognition, text understanding, and the like.

The external memory interface 120 may be used to connect an external memory card, such as a Micro SD card, to expand the storage capacity of the electronic device 100 . The external memory card communicates with the processor 110 through the external memory interface 120 to realize the data storage function. For example to save files like music, video etc in external memory card.

Internal memory 121 may be used to store one or more computer programs including instructions. The processor 110 may execute the above-mentioned instructions stored in the internal memory 121, thereby causing the electronic device 100 to execute the method for displaying page elements, various applications and data processing provided in some embodiments of the present application. The internal memory 121 may include a storage program area and a storage data area. Wherein, the stored program area may store the operating system; the stored program area may also store one or more applications (such as gallery, contacts, etc.) and the like. The storage data area may store data (such as photos, contacts, etc.) created during the use of the electronic device 100 and the like. In addition, the internal memory 121 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic disk storage components, flash memory components, universal flash storage (UFS), and the like. In some embodiments, the processor 110 may cause the electronic device 100 to execute the instructions provided in the embodiments of the present application by executing the instructions stored in the internal memory 121 and/or the instructions stored in the memory provided in the processor 110 . Methods for displaying page elements, as well as other applications and data processing. The electronic device 100 may implement audio functions through an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, an application processor, and the like. Such as music playback, recording, etc.

The sensor module 180 may include a pressure sensor 180A, a gyro sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, a proximity light sensor 180G, a fingerprint sensor 180H, a temperature sensor 180J, a touch sensor 180K, and an ambient light sensor 180L, bone conduction sensor 180M, etc.

The pressure sensor 180A is used to sense pressure signals, and can convert the pressure signals into electrical signals. In some embodiments, the pressure sensor 180A may be provided on the display screen 194 . There are many types of pressure sensors 180A, such as resistive pressure sensors, inductive pressure sensors, capacitive pressure sensors, and the like. The capacitive pressure sensor may be comprised of at least two parallel plates of conductive material. When a force is applied to the pressure sensor 180A, the capacitance between the electrodes changes. The electronic device 100 determines the intensity of the pressure according to the change in capacitance. When a touch operation acts on the display screen 194, the electronic device 100 detects the intensity of the touch operation according to the pressure sensor 180A. The electronic device 100 may also calculate the touched position according to the detection signal of the pressure sensor 180A. In some embodiments, touch operations acting on the same touch position but with different touch operation intensities may correspond to different operation instructions. For example, when a touch operation whose intensity is less than the first pressure threshold acts on the short message application icon, the instruction for viewing the short message is executed. When a touch operation with a touch operation intensity greater than or equal to the first pressure threshold acts on the short message application icon, the instruction to create a new short message is executed.

The gyro sensor 180B may be used to determine the motion attitude of the electronic device 100 . In some embodiments, the angular velocity of the electronic device 100 about three axes (ie, the X, Y, and Z axes) may be determined by the gyro sensor 180B. The gyro sensor 180B can be used for image stabilization. Exemplarily, when the shutter is pressed, the gyro sensor 180B detects the shaking angle of the electronic device 100, calculates the distance that the lens module needs to compensate according to the angle, and allows the lens to offset the shaking of the electronic device 100 through reverse motion to achieve anti-shake. The gyro sensor 180B can also be used for navigation and somatosensory game scenarios.

The acceleration sensor 180E can detect the magnitude of the acceleration of the electronic device 100 in various directions (generally three axes). The magnitude and direction of gravity can be detected when the electronic device 100 is stationary. It can also be used to identify the posture of electronic devices, and can be used in applications such as horizontal and vertical screen switching, pedometers, etc.

The ambient light sensor 180L is used to sense ambient light brightness. The electronic device 100 can adaptively adjust the brightness of the display screen 194 according to the perceived ambient light brightness. The ambient light sensor 180L can also be used to automatically adjust the white balance when taking pictures. The ambient light sensor 180L can also cooperate with the proximity light sensor 180G to detect whether the electronic device 100 is in a pocket, so as to prevent accidental touch.

The fingerprint sensor 180H is used to collect fingerprints. The electronic device 100 can use the collected fingerprint characteristics to realize fingerprint unlocking, accessing application locks, taking photos with fingerprints, answering incoming calls with fingerprints, and the like.

The temperature sensor 180J is used to detect the temperature. In some embodiments, the electronic device 100 uses the temperature detected by the temperature sensor 180J to execute a temperature processing strategy. For example, when the temperature reported by the temperature sensor 180J exceeds a threshold value, the electronic device 100 reduces the performance of the processor located near the temperature sensor 180J in order to reduce power consumption and implement thermal protection. In other embodiments, when the temperature is lower than another threshold, the electronic device 100 heats the battery 142 to avoid abnormal shutdown of the electronic device 100 caused by the low temperature. In some other embodiments, when the temperature is lower than another threshold, the electronic device 100 boosts the output voltage of the battery 142 to avoid abnormal shutdown caused by low temperature.

Touch sensor 180K, also called "touch panel". The touch sensor 180K may be disposed on the display screen 194 , and the touch sensor 180K and the display screen 194 form a touch screen, also referred to as a "touch screen". The touch sensor 180K is used to detect a touch operation on or near it. The touch sensor can pass the detected touch operation to the application processor to determine the type of touch event. Visual output related to touch operations may be provided through display screen 194 . In other embodiments, the touch sensor 180K may also be disposed on the surface of the electronic device 100 , which is different from the location where the display screen 194 is located.

Exemplarily, FIG. 2 shows a software structural block diagram of the electronic device 100 . The layered architecture divides the software into several layers, and each layer has a clear role and division of labor. Layers communicate with each other through software interfaces. In some embodiments, the Android system is divided into four layers, which are, from top to bottom, an application layer, an application framework layer, an Android runtime (Android runtime) and system libraries, and a kernel layer. The application layer can include a series of application packages.

As shown in Figure 2, the application layer can include applications such as camera, gallery, calendar, call, map, navigation, WLAN, Bluetooth, music, video, and short messages.

The application framework layer provides an application programming interface (application programming interface, API) and a programming framework for the applications of the application layer. The application framework layer includes some predefined functions.

As shown in Figure 2, the application framework layer may include window managers, content providers, view systems, telephony managers, resource managers, notification managers, and the like.

A window manager is used to manage window programs. The window manager can get the size of the display screen, determine whether there is a status bar, lock the screen, take screenshots, etc.

Content providers are used to store and retrieve data and make these data accessible to applications. Data can include videos, images, audio, calls made and received, browsing history and bookmarks, phone book, etc.

The view system includes visual controls, such as controls for displaying text, controls for displaying pictures, and so on. View systems can be used to build applications. A display interface can consist of one or more views. For example, the display interface including the short message notification icon may include a view for displaying text and a view for displaying pictures.

The phone manager is used to provide the communication function of the electronic device 100 . For example, the management of call status (including connecting, hanging up, etc.).

The resource manager provides various resources for the application, such as localization strings, icons, pictures, layout files, video files and so on.

The notification manager enables applications to display notification information in the status bar, which can be used to convey notification-type messages, and can disappear automatically after a brief pause without user interaction. For example, the notification manager is used to notify download completion, message reminders, etc. The notification manager can also display notifications in the status bar at the top of the system in the form of graphs or scroll bar text, such as notifications of applications running in the background, and notifications on the screen in the form of dialog windows. For example, text information is prompted in the status bar, a prompt sound is issued, the electronic device vibrates, and the indicator light flashes.

Android Runtime includes core libraries and a virtual machine. The Android runtime is responsible for the scheduling and management of the Android system.

The core library consists of two parts: one is the function functions that the java language needs to call, and the other is the core library of Android.

The application layer and the application framework layer run in virtual machines. The virtual machine executes the java files of the application layer and the application framework layer as binary files. The virtual machine is used to perform functions such as object lifecycle management, stack management, thread management, safety and exception management, and garbage collection.

A system library can include multiple functional modules. For example: surface manager (surface manager), media library (media libraries), 3D graphics processing library (eg: OpenGL ES), 2D graphics engine (eg: SGL), etc.

The Surface Manager is used to manage the display subsystem and provides a fusion of 2D and 3D layers for multiple applications.

The media library supports playback and recording of a variety of commonly used audio and video formats, as well as still image files. The media library can support a variety of audio and video encoding formats, such as: MPEG4, H.264, MP3, AAC, AMR, JPG, PNG, etc.

The 3D graphics processing library is used to implement 3D graphics drawing, image rendering, compositing, and layer processing.

2D graphics engine is a drawing engine for 2D drawing.

The kernel layer is the layer between hardware and software. The kernel layer contains at least display drivers, camera drivers, audio drivers, and sensor drivers.

In the second part, the brightness adjustment method and related apparatus disclosed in the embodiments of the present application are introduced as follows.

Please refer to FIG. 3A. FIG. 3A is a schematic flowchart of a brightness adjustment method provided by an embodiment of the present application. As shown in the figure, the brightness adjustment method includes:

301. Obtain a current display brightness level, where the electronic device includes N display brightness levels, the current display brightness level is any one of the N display brightness levels, and N is an integer greater than 1.

Wherein, in the specific implementation, the current display brightness level may be obtained. For example, the current display brightness level may be the display brightness level when the display screen is started, or may be any brightness level during the brightness adjustment process.

In this embodiment of the present application, the electronic device may include N display brightness levels, and the current display brightness level may be any display brightness level among the N levels, where N is an integer greater than 1.

In specific implementation, since the N display brightness levels are related to the hardware properties of the display screen, they may also be called physical levels or hardware levels. That is, each display brightness level in the N display brightness levels may correspond to a physical level or a hardware level.

302. When the current display brightness level is lower than a preset threshold, determine a target display brightness level corresponding to the current display brightness level, where the target display brightness level is an extended level corresponding to the current display brightness level.

The preset threshold may be preset or defaulted by the system. In the specific implementation, different display screens may correspond to different preset thresholds, that is, the mapping relationship between the preset attribute information of the display screen and the preset threshold may be stored in advance. Furthermore, the preset threshold corresponding to the attribute information of the display screen of the electronic device may be determined based on the mapping relationship. The attribute information may include at least one of the following: the model of the display screen, the size of the display screen, the material of the display screen, etc., which are not limited herein.

Optionally, in the above step 302, determining the target display brightness level corresponding to the current display brightness level may include the following steps:

21. Expand the display brightness level of the preset interval range by the number of levels to obtain M display brightness levels, the preset interval range includes the current display brightness level, and M is an integer greater than 1;

22. Determine the target display brightness level corresponding to the current display brightness level according to the M display brightness levels.

In specific implementation, the preset interval range may include the current display brightness level, and the current display brightness level may be an upper limit value or a lower limit value of the preset interval range, or a display brightness level between the lower limit value and the upper limit value . Specifically, the preset interval range may include at least two display brightness levels. For example, when the current display brightness level is 4, the preset interval range may be 4 to 5. For another example, when the current display brightness level is 4, the preset interval range is 4. The interval range may be 0-300. For another example, when the current display brightness level is 4, the preset interval range may be 0-4. Specifically, the preset interval range may include some or all of the N display brightness levels, for example, the preset interval range may include the display brightness levels of the low brightness interval.

Specifically, when the current display brightness level is lower than the preset threshold, it means that the current display brightness is in a low brightness area. In order to avoid the phenomenon of backlight jitter, the display brightness level in the preset range can be expanded by the number of levels to obtain M The M display brightness levels can satisfy monotonic characteristics (for example, monotonically increasing), and the M display brightness levels can realize smooth and delicate transition of brightness. Furthermore, the target display brightness level corresponding to the current display brightness level can be determined according to the M display brightness levels according to the automatic backlight adjustment method or the manual backlight adjustment method. For example, in the automatic backlight adjustment method, the M display brightness levels can be automatically determined. One of the display brightness levels is determined as the target display brightness level corresponding to the current display brightness level. In the manual backlight adjustment mode, one of the M display brightness levels can be determined as the current display brightness according to the user's selection. The target display brightness level corresponding to the level.

For example, take the electronic device of the OLED screen as an example, because the OLED screen is driven by current to emit light. As shown in Figure 3B, in the case of automatic backlight adjustment, under the action of the hardware adjustment driving current module, the drag and drop can be realized. Move the brightness bar to achieve different (display brightness value, DBV) level values corresponding to different positions, so that the screen brightness changes. In the low-brightness range, the current difference between adjacent DBV levels is very small, which will lead to brightness instability due to the sensitive fluctuation of the current when the level of DBV is rapidly switched, resulting in brightness jitter. For example, in practical applications, problems are likely to occur at a level of about 300 under a 2047-level backlight, and problems are likely to occur at a level of about 450 under a 3515-level backlight. Furthermore, in the embodiment of the present application, the display brightness level in the low brightness range is Expand the number of levels to achieve delicate and smooth transition of backlight brightness in the process of dragging the brightness bar or automatic backlight adjustment.

Optionally, in the above step 21, the display brightness levels of the preset interval range are expanded by the number of levels to obtain the M display brightness levels, which can be implemented as follows:

According to the polynomial color calibration matrix PCC parameter, the display brightness levels of the preset interval range are extended by the number of levels to obtain M display brightness levels.

In the specific implementation, some or all of the original N display brightness levels can be divided more precisely based on the polynomial color calibration matrix PCC parameters. Since the display brightness level changes in the preset interval range are based on the gamma parameter changes, and then , the PCC parameter can be reversed through the gamma parameter, and finally, the display brightness level can be extended by the number of levels based on the PCC parameter.

Further, in the above steps, according to the polynomial color calibration matrix PCC parameter, the display brightness levels of the preset interval range are expanded by the number of levels, and the M display brightness levels are obtained, which may include the following steps:

211. Determine the lower limit value and the upper limit value of the preset interval range;

212. Determine a first gamma parameter corresponding to the lower limit value and a second gamma parameter corresponding to the upper limit value;

213. Acquire a gamma curve segment between the first gamma parameter and the second gamma parameter;

214. Perform uniform sampling on the gamma curve segment to obtain M points, each point corresponding to a gamma parameter;

215. Determine the polynomial color calibration matrix PCC parameter of each point according to the gamma parameters of the M points, and obtain M PCC parameters;

216. Expand the display brightness levels of the preset interval range by the number of levels according to the M PCC parameters to obtain the M display brightness levels.

In a specific implementation, the electronic device may be preconfigured with a gamma curve, the horizontal axis of the gamma curve is the display brightness level, and the vertical axis is the gamma parameter. The gamma curve can be any gamma curve. For example, the gamma curve can be the gamma curve obtained from the gamma 2.1 theory. For another example, the gamma curve can be the gamma curve obtained from the gamma 2.2 theory. For example, the gamma curve can be obtained from the gamma 2.3 theory. The gamma curve, etc., are not limited here.

Specifically, the lower limit value and the upper limit value of the preset interval range can be determined. The lower limit value can correspond to a display brightness level, and the upper limit value can also correspond to a display brightness level. Based on the above gamma curve, the lower limit can be determined. The first gamma parameter corresponding to the value and the second gamma parameter corresponding to the upper limit value are obtained, and then the gamma curve segment between the first gamma parameter and the second gamma parameter is obtained.

Further, the gamma curve segment can be uniformly sampled to obtain M points, each point corresponds to a gamma parameter, and each point corresponds to a display brightness level. The polynomial color calibration matrix (PCC) parameter of each point can be determined according to the gamma parameters of the M points, and M PCC parameters can be obtained. Finally, the display brightness of the preset interval can be adjusted according to the M PCC parameters. The number of levels is expanded to obtain M display brightness levels, and further, smooth and delicate transition of the M display brightness levels can be ensured, so as to avoid the phenomenon of backlight jitter.

Further, optionally, in the above step 216, according to the M PCC parameters, the display brightness levels of the preset interval range are expanded by the number of levels to obtain the M display brightness levels, which may include the following steps:

2161. Determine the display brightness level corresponding to the preset interval range, and obtain P display brightness levels, where P is a positive integer less than or equal to N;

2162. Determine PCC parameters corresponding to each display brightness level in the P display brightness levels, and obtain P groups of PCC parameters, where each group of PCC parameters includes M/P PCC parameters;

2163. Determine the product between each display brightness level in the P display brightness levels and the PCC parameters in the corresponding group of PCC parameters, to obtain P groups of products;

2164. Determine the M display brightness levels according to the P groups of products.

In a specific implementation, part or all of the display brightness levels corresponding to the preset interval range may be determined to obtain P display brightness levels, where P is a positive integer less than or equal to N. Furthermore, PCC parameters corresponding to each display brightness level in the P display brightness levels can be determined, and P groups of PCC parameters can be obtained, and each group of PCC parameters includes M/P PCC parameters. For example, between adjacent display brightness levels, the It can be expanded. Specifically, the corresponding gamma curve can be uniformly sampled to obtain a plurality of sampling points, and then the PCC parameter corresponding to each point can be determined, and then, each display brightness in the P display brightness levels can be determined. The product between the level and the PCC parameters in the corresponding group of PCC parameters, the P group product is obtained. Finally, M display brightness levels can be determined according to the P group product, that is, each product corresponds to a display brightness level. Since the M display brightness levels Each display brightness level in is an expanded (software processed) display brightness level, which can also be called a software level.

Optionally, in the above step 214, the gamma curve segment is uniformly sampled to obtain M points, which may include the following steps:

2141. Perform an interception operation on the gamma curve segment to obtain at least one curve segment, where the endpoint of each curve segment in the at least one curve segment corresponds to a display brightness level;

2142. Perform uniform sampling on the at least one curve segment to obtain the M points.

In the specific implementation, the gamma curve segment can be intercepted, and then at least one curve segment can be obtained, and the endpoint of each curve segment in the at least one curve segment corresponds to a display brightness level, so as to display the gamma corresponding to the brightness levels 4-10. Take the horse curve segment as an example, you can directly intercept a complete curve segment between display brightness levels 4-10, or you can intercept a curve segment between display brightness levels 4-5, and display brightness levels between 7-10 A curve segment of , and further, at least one curve segment can be uniformly sampled to obtain M points, and among the M points, the gamma parameters of adjacent points are different. At least one curve segment may include one or more curve segments, which may be continuous or discontinuous curve segments.

For example, if the user wants to adjust the display brightness level between 4-5, the curve segment corresponding to the display brightness level 4-5 can be obtained, and the endpoint of the curve segment corresponds to a display brightness level, and further, the display brightness level 4-5 can be adjusted. The number of levels can be expanded between 5.

For example, as shown in Figure 3C, for the case of debugging without jumping the physical level, that is, for a single refresh rate/or multiple refresh rates but the level and brightness trends are inconsistent, for example, the actual hardware levels 4, 5, 6, ..., 2046, 2047\4, 5, 6, ..., 3514\3515, you can multiply the PCC coefficient according to the actual hardware level, such as 4*0.95, it can correspond to the extended hardware level 4, And so on, it can be expanded to 4, 5, 6, ..., 8191, 8192, and so on.

As another example, as shown in Figure 3D, for the case of jumping physical level debugging, that is, for multiple refresh rates but the level and brightness trends are inconsistent, for example, the actual hardware level 4, 5, 6, ..., 2046 , 2047\4, 5, 6,..., 3514\3515, then you can multiply the PCC coefficient according to the actual hardware level, such as 4*0.95, then it can correspond to the extended hardware level 4, and so on, then This can be expanded to 4, 5, 6, ..., 8191, 8192, etc. For another example, since the physical level is adjusted, it can be directly jumped from 4 to 7, then 7*0.85, which can correspond to the extended hardware level of 10.

In the embodiment of this application, the actual hardware level refers to the above-mentioned 2047, 3515, 4096 levels, etc., which are 2047, 3515, and 4096 brightness levels that can actually be divided by pure screen hardware. The hardware level is divided into more levels, which is the software level. The so-called software level is the level obtained by compressing and fitting the content of the PCC with the hardware level. In this way, the 0-300 level or 0-450 level can be extended to 2000, 3000, 4000 or even higher. The principle of expansion is that the low brightness interval of the final software fitting level conforms to the increasing law of gamma to the power of 2.2.

As another example, as shown in Figure 3E, the parameters of PCC coefficient adjustment are strongly related to the gamma of the current hardware level DBV used, and the parameters need to be adjusted according to the value of gamma, so that the brightness value will not be reversed and the brightness will be smooth. . For example, using a hardware level of 7, the theoretical calculation of gamma 2.2 is that a PCC of 0.85 can be connected to the brightness of the hardware level of 4*1, but the actual brightness of 7*0.85 will appear too bright or too dark. At the connection point, there will be jitter in brightness, or even screen flickering. At this time, it needs to be based on the gamma of the actual screen. Maybe the gamma of the current 7 hardware level is 2.1 or 2.3, then the PCC value can be calculated according to gamma 2.1 or gamma 2.3 to be 0.84 respectively. and 0.86, at this time, the brightness of 7*0.84 or 7*0.86 can be well connected to the brightness of hardware level 4*1, so that the different levels will be very smooth and delicate, and so on for other levels.

Optionally, in the above step 22, determining the target display brightness level corresponding to the current display brightness level according to the M display brightness levels may include the following steps:

A221. Display the M display brightness levels on the brightness bar;

A222. Receive a drag instruction for the brightness bar;

A223. In response to the dragging instruction, determine the display brightness level of the target selected by the user.

In the specific implementation, if manual backlight adjustment is specified, M display brightness levels can be displayed on the brightness bar, and the user can drag the brightness bar, and further, can receive a drag command for the brightness bar and respond to the drag operation. To determine the target display brightness level selected by the user, the target display brightness level is one of the M display brightness levels, then the current display brightness level can be adjusted to the target display brightness level. During the process, the display brightness level is gradually changed, and the transition between different levels will be very smooth and delicate, thus avoiding the phenomenon of backlight jitter, thereby improving the user experience.

Optionally, in the above step 22, determining the target display brightness level corresponding to the current display brightness level according to the M display brightness levels may include the following steps:

B221. Obtain target environment parameters;

B222. Determine the target display brightness level corresponding to the target environment parameter, where the target display brightness level is one display brightness level among the M display brightness levels.

In this embodiment of the present application, the environmental parameters may include at least one of the following: environmental brightness, environmental color temperature, environmental temperature, environmental humidity, weather, geographic location, magnetic field interference parameters, etc., which are not limited here, and a preset can be stored in advance. The mapping relationship between environmental parameters and display brightness levels.

In the specific implementation, in the case of automatic backlight adjustment, the target environmental parameters can be obtained, and then the target display brightness level corresponding to the target environmental parameters is determined according to the mapping relationship between the pre-stored preset environmental parameters and the display brightness level, and the target display brightness If the level is one of the M display brightness levels, a display brightness level suitable for the environment can be obtained, and then the current display brightness level can be adjusted to the target display brightness level. The display brightness level is gradually changed, and the transition between different levels will be very smooth and delicate, thus avoiding the phenomenon of backlight jitter, thereby improving the user experience. In the case of automatic backlight adjustment, the brightness bar may or may not be displayed.

It can be seen that in the above-mentioned manual backlight adjustment and automatic backlight adjustment process, in the embodiment of the present application, both the manual drag brightness and the automatic brightness can present a delicate and smooth transition, which greatly improves the user experience.

303. Perform backlight brightness adjustment according to the M display brightness levels.

In the specific implementation, in the case of manual backlight adjustment or automatic backlight adjustment, the backlight brightness can be adjusted according to the M display brightness levels. During the process of dragging the brightness bar, different positions can correspond to one of the M display brightness levels. Displays the brightness level. During the backlight brightness adjustment process in the low-brightness range, the display brightness level is expanded by the number of levels to achieve a delicate and smooth transition between adjacent display brightness levels, thereby avoiding the phenomenon of backlight jitter, and helping to improve the user experience.

Optionally, the following steps may also be included:

When the current display brightness level is greater than or equal to the preset threshold, the backlight brightness adjustment is performed according to the N display brightness levels.

In the specific implementation, when the current display brightness level is greater than or equal to the preset threshold, it means that the backlight adjustment is not performed for the low brightness interval, and the backlight brightness adjustment can be performed according to N display brightness levels, that is, in the case of manual backlight adjustment, then As long as the adjusted display brightness level is greater than or equal to the preset threshold, there will be no backlight jitter. Similarly, in the case of automatic backlight adjustment, as long as the adjusted display brightness level is greater than or equal to the preset threshold, the phenomenon of backlight jitter will not occur.

In the embodiment of the present application, aiming at the brightness level problem under the low display brightness level DBV, the display brightness level is implemented by software to expand the number of levels. Both drag-brightness and auto-brightness present delicate and smooth transitions, which greatly improves the user experience.

In the embodiment of the present application, by calling out the software level, adding the hardware level and the content compression fitting level of the PCC, for example, the 0-300 level or the 0-450 level can be extended to 2000, 3000, 4000 or even higher levels . The principle of expansion is that the low brightness interval of the final software fitting level conforms to the increasing law of gamma theory (such as gamma to the power of 2.2). And constructively combine the gamma parameters of the hardware level to adjust the content of the PCC coefficient, and finally show a delicate and smooth transition between the manual drag brightness and the automatic brightness.

It can be seen that the brightness adjustment method described in the embodiments of the present application is applied to an electronic device to obtain the current display brightness level. The electronic device includes N display brightness levels, and the current display brightness level is any one of the N display brightness levels. Display brightness level, N is an integer greater than 1; when the current display brightness level is lower than the preset threshold, determine the target display brightness level corresponding to the current display brightness level, and the target display brightness level is the extension level corresponding to the current display brightness level; The backlight brightness is adjusted according to the target display brightness level. During the backlight brightness adjustment process in the low-brightness interval, the number of levels is expanded to achieve a delicate and smooth transition between adjacent display brightness levels, thereby avoiding the phenomenon of backlight jitter. , which helps to improve the user experience.

Consistent with the embodiment shown in FIG. 3A , please refer to FIG. 4 . FIG. 4 is a schematic flowchart of a brightness adjustment method provided by an embodiment of the present application, which is applied to electronic equipment. As shown in the figure, the brightness adjustment method includes: :

401. Obtain a current display brightness level, where the electronic device includes N display brightness levels, the current display brightness level is any display brightness level among the N display brightness levels, and N is an integer greater than 1.

402. When the current display brightness level is lower than a preset threshold, expand the display brightness level of a preset interval range by the number of levels to obtain M display brightness levels, where the preset interval range includes the current display brightness level. , M is an integer greater than 1.

403. Display the M display brightness levels on the brightness bar.

404. Receive a drag instruction for the brightness bar.

405. In response to the dragging instruction, determine the display brightness level of the target selected by the user.

406. Adjust the current display brightness level to the target display brightness level.

The specific description of the above steps 401 to 406 may refer to the corresponding steps of the brightness adjustment method as shown in FIG. 3A , which will not be repeated here.

It can be seen that the brightness adjustment method described in the embodiments of the present application is applied to an electronic device to obtain the current display brightness level. The electronic device includes N display brightness levels, and the current display brightness level is any one of the N display brightness levels. Display brightness level, N is an integer greater than 1; when the current display brightness level is lower than the preset threshold, the display brightness level in the preset interval range is expanded by the number of levels to obtain M display brightness levels, and the preset interval range includes the current display brightness level. Display brightness level, M is an integer greater than 1; display M display brightness levels on the brightness bar; receive a drag command for the brightness bar; respond to the drag command, determine the target display brightness level selected by the user; display the current display brightness level Adjust to the target display brightness level. During the backlight brightness adjustment process in the low brightness range, the display brightness level is expanded by the number of levels. Since the display brightness level changes gradually during the dragging process, the different levels will be very smooth and smooth. Delicate transitions, and thus, avoid backlight jitter, thereby improving user experience.

Consistent with the embodiment shown in FIG. 3A, please refer to FIG. 5. FIG. 5 is a schematic flowchart of a brightness adjustment method provided by an embodiment of the present application, which is applied to electronic equipment. As shown in the figure, the brightness adjustment method includes: :

501. Obtain a current display brightness level, where the electronic device includes N display brightness levels, the current display brightness level is any display brightness level among the N display brightness levels, and N is an integer greater than 1.

502. When the current display brightness level is lower than a preset threshold, expand the display brightness level of a preset interval range by the number of levels to obtain M display brightness levels, where the preset interval range includes the current display brightness level. , M is an integer greater than 1.

503. Obtain target environment parameters.

504. Determine a target display brightness level corresponding to the target environment parameter, where the target display brightness level is one display brightness level among the M display brightness levels.

505. Adjust the current display brightness level to the target display brightness level.

The specific description of the above steps 501 to 505 may refer to the corresponding steps of the brightness adjustment method as shown in FIG. 3A , which will not be repeated here.

It can be seen that the brightness adjustment method described in the embodiments of the present application is applied to an electronic device to obtain the current display brightness level. The electronic device includes N display brightness levels, and the current display brightness level is any one of the N display brightness levels. Display brightness level, N is an integer greater than 1; when the current display brightness level is lower than the preset threshold, the display brightness level in the preset interval range is expanded by the number of levels to obtain M display brightness levels, and the preset interval range includes the current display brightness level. Display brightness level, M is an integer greater than 1; obtain the target environment parameters; determine the target display brightness level corresponding to the target environment parameters, and the target display brightness level is one of the M display brightness levels; Adjust to the target display brightness level. During the backlight brightness adjustment process in the low brightness range, the display brightness level is expanded by the number of levels. Since the display brightness level changes gradually during the automatic backlight adjustment process, the different levels will be very smooth. , delicate transition, and then, to avoid the phenomenon of backlight jitter, so as to improve the user experience.

Consistent with the above-mentioned embodiment, please refer to FIG. 6, which is a schematic structural diagram of an electronic device provided by an embodiment of the present application. As shown in the figure, the electronic device includes a processor, a memory, a communication interface, and one or more A program, wherein the above-mentioned one or more programs are stored in the above-mentioned memory and are configured to be executed by a processor. In the embodiment of the present application, the above-mentioned program includes instructions for executing the following steps:

Obtaining a current display brightness level, the electronic device includes N display brightness levels, the current display brightness level is any display brightness level in the N display brightness levels, and N is an integer greater than 1;

When the current display brightness level is lower than a preset threshold, determining a target display brightness level corresponding to the current display brightness level, where the target display brightness level is an extended level corresponding to the current display brightness level;

The backlight brightness is adjusted according to the target display brightness level.

Optionally, in the aspect of determining the target display brightness level corresponding to the current display brightness level, the above program includes instructions for performing the following steps:

Expanding the display brightness level of the preset interval range by the number of levels, to obtain M display brightness levels, the preset interval range includes the current display brightness level, and M is an integer greater than 1;

The target display brightness level corresponding to the current display brightness level is determined according to the M display brightness levels.

Optionally, in the aspect of extending the display brightness levels of the preset interval range by the number of levels to obtain M display brightness levels, the above program includes instructions for performing the following steps:

According to the polynomial color calibration matrix PCC parameter, the display brightness levels of the preset interval range are expanded by the number of levels to obtain the M display brightness levels.

Optionally, in the aspect of extending the display brightness level of the preset interval range by the number of levels according to the polynomial color calibration matrix PCC parameter to obtain the M display brightness levels, the above program includes an instruction for performing the following steps:

determining the lower limit value and the upper limit value of the preset interval range;

determining a first gamma parameter corresponding to the lower limit value and a second gamma parameter corresponding to the upper limit value;

obtaining a gamma curve segment between the first gamma parameter and the second gamma parameter;

The gamma curve segment is uniformly sampled to obtain M points, each point corresponding to a gamma parameter;

Determine the polynomial color calibration matrix PCC parameter of each point according to the gamma parameters of the M points, and obtain M PCC parameters;

According to the M PCC parameters, the display brightness levels of the preset interval range are extended by the number of levels to obtain the M display brightness levels.

Optionally, in the aspect of extending the display brightness levels of the preset interval range by the number of levels according to the M PCC parameters to obtain the M display brightness levels, the above program includes instructions for performing the following steps: :

Determine the display brightness levels corresponding to the preset interval range, and obtain P display brightness levels, where P is a positive integer less than or equal to N;

Determine the PCC parameters corresponding to each display brightness level in the P display brightness levels, and obtain P groups of PCC parameters, and each group of PCC parameters includes M/P PCC parameters;

Determine the product between each display brightness level in the P display brightness levels and the PCC parameters in the corresponding group of PCC parameters, to obtain P groups of products;

The M display brightness levels are determined according to the P groups of products.

Optionally, in the aspect of uniformly sampling the gamma curve segment according to the gamma curve segment to obtain M points, the above program includes instructions for performing the following steps:

performing an interception operation on the gamma curve segment to obtain at least one curve segment, and the endpoint of each curve segment in the at least one curve segment corresponds to a display brightness level;

The at least one curve segment is uniformly sampled to obtain the M points.

Optionally, in the aspect of determining the target display brightness level corresponding to the current display brightness level according to the M display brightness levels, the above program includes instructions for performing the following steps:

displaying the M display brightness levels on the brightness bar;

receiving a drag instruction for the brightness bar;

In response to the dragging instruction, the display brightness level of the target selected by the user is determined.

Optionally, in the aspect of determining the target display brightness level corresponding to the current display brightness level according to the M display brightness levels, the above program includes instructions for performing the following steps:

Get the target environment parameters;

The target display brightness level corresponding to the target environment parameter is determined, and the target display brightness level is one display brightness level among the M display brightness levels.

Optionally, the above program also includes instructions for performing the following steps:

When the current display brightness level is greater than or equal to the preset threshold, the backlight brightness adjustment is performed according to the N display brightness levels.

It can be seen that the electronic device described in the embodiment of the present application obtains the current display brightness level, the electronic device includes N display brightness levels, the current display brightness level is any one of the N display brightness levels, and N is An integer greater than 1; when the current display brightness level is lower than the preset threshold, the target display brightness level corresponding to the current display brightness level is determined, and the target display brightness level is the extended level corresponding to the current display brightness level; according to the target display brightness level Backlight brightness adjustment, in the process of backlight brightness adjustment in the low-brightness range, the display brightness level is expanded by the number of levels to achieve a delicate and smooth transition between adjacent display brightness levels, thereby avoiding the phenomenon of backlight jitter, and helping users improve experience.

The foregoing mainly introduces the solutions of the embodiments of the present application from the perspective of the method-side execution process. It can be understood that, in order to realize the above-mentioned functions, the electronic device includes corresponding hardware structures and/or software modules for executing each function. Those skilled in the art should easily realize that the present application can be implemented in hardware or in the form of a combination of hardware and computer software, in combination with the units and algorithm steps of each example described in the embodiments provided herein. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

In this embodiment of the present application, the electronic device may be divided into functional units according to the foregoing method examples. For example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit. The above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units. It should be noted that the division of units in the embodiments of the present application is illustrative, and is only a logical function division, and other division methods may be used in actual implementation.

FIG. 7 is a block diagram of functional units of the brightness adjustment apparatus 700 involved in the embodiment of the present application. The brightness adjustment apparatus 700 is applied to electronic equipment, and the apparatus 700 includes: the apparatus includes: an acquisition unit 701, an extension unit 702 and an adjustment unit 703, wherein,

The obtaining unit 701 is configured to obtain the current display brightness level, the electronic device includes N display brightness levels, the current display brightness level is any display brightness level in the N display brightness levels, and N is greater than an integer of 1;

The expansion unit 702 is configured to determine a target display brightness level corresponding to the current display brightness level when the current display brightness level is lower than a preset threshold, where the target display brightness level is the current display brightness level the corresponding extension level;

The adjusting unit 703 is configured to adjust the backlight brightness according to the target display brightness level.

Optionally, in the aspect of determining the target display brightness level corresponding to the current display brightness level, the expansion unit 702 is specifically configured to:

Expanding the display brightness level of the preset interval range by the number of levels, to obtain M display brightness levels, the preset interval range includes the current display brightness level, and M is an integer greater than 1;

The target display brightness level corresponding to the current display brightness level is determined according to the M display brightness levels.

Optionally, in the aspect of extending the display brightness levels of the preset interval range by the number of levels to obtain M display brightness levels, the expansion unit 702 is specifically used for:

According to the polynomial color calibration matrix PCC parameter, the display brightness levels of the preset interval range are expanded by the number of levels to obtain the M display brightness levels.

Optionally, in the aspect of extending the display brightness level of the preset interval range by the number of levels according to the polynomial color calibration matrix PCC parameter to obtain the M display brightness levels, the expansion unit 702 is specifically used for:

Optionally, in the aspect of extending the display brightness levels of the preset interval range by the number of levels to obtain M display brightness levels, the expansion unit 702 is specifically used for:

determining the lower limit value and the upper limit value of the preset interval range;

determining a first gamma parameter corresponding to the lower limit value and a second gamma parameter corresponding to the upper limit value;

obtaining a gamma curve segment between the first gamma parameter and the second gamma parameter;

The gamma curve segment is uniformly sampled to obtain M points, each point corresponding to a gamma parameter;

Determine the polynomial color calibration matrix PCC parameter of each point according to the gamma parameters of the M points, and obtain M PCC parameters;

According to the M PCC parameters, the display brightness levels of the preset interval range are extended by the number of levels to obtain the M display brightness levels.

Optionally, in the aspect of extending the display brightness levels of the preset interval range by the number of levels according to the M PCC parameters to obtain the M display brightness levels, the expansion unit 702 is specifically configured to:

Determine the display brightness levels corresponding to the preset interval range, and obtain P display brightness levels, where P is a positive integer less than or equal to N;

Determine the PCC parameters corresponding to each display brightness level in the P display brightness levels, and obtain P groups of PCC parameters, and each group of PCC parameters includes M/P PCC parameters;

Determine the product between each display brightness level in the P display brightness levels and the PCC parameters in the corresponding group of PCC parameters, to obtain P groups of products;

The M display brightness levels are determined according to the P groups of products.

Optionally, in the aspect of uniformly sampling the gamma curve segment according to the gamma curve segment to obtain M points, the expansion unit 702 is specifically configured to:

performing an interception operation on the gamma curve segment to obtain at least one curve segment, and the endpoint of each curve segment in the at least one curve segment corresponds to a display brightness level;

The at least one curve segment is uniformly sampled to obtain the M points.

Optionally, in the aspect of determining the target display brightness level corresponding to the current display brightness level according to the M display brightness levels, the expansion unit 702 is specifically configured to:

displaying the M display brightness levels on the brightness bar;

receiving a drag instruction for the brightness bar;

In response to the dragging instruction, the display brightness level of the target selected by the user is determined.

Optionally, in the aspect of determining the target display brightness level corresponding to the current display brightness level according to the M display brightness levels, the expansion unit 702 is specifically configured to:

Get the target environment parameters;

The target display brightness level corresponding to the target environment parameter is determined, and the target display brightness level is one display brightness level among the M display brightness levels.

Optionally, the device 700 is also specifically used for:

When the current display brightness level is greater than or equal to the preset threshold, the backlight brightness adjustment is performed according to the N display brightness levels.

It can be seen that the brightness adjustment device described in the embodiments of the present application is applied to electronic equipment to obtain the current display brightness level, the electronic equipment includes N display brightness levels, and the current display brightness level is any one of the N display brightness levels Display brightness level, N is an integer greater than 1; when the current display brightness level is lower than the preset threshold, determine the target display brightness level corresponding to the current display brightness level, and the target display brightness level is the extension level corresponding to the current display brightness level; The backlight brightness is adjusted according to the target display brightness level. During the backlight brightness adjustment process in the low-brightness interval, the number of levels is expanded to achieve a delicate and smooth transition between adjacent display brightness levels, thereby avoiding the phenomenon of backlight jitter. , which helps to improve the user experience.

It should be noted that the electronic devices described in the embodiments of the present application are presented in the form of functional units. The term "unit" as used herein should be understood in the broadest possible sense, and the object used to implement the functions described by each "unit" may be, for example, an integrated circuit ASIC, a single circuit for executing one or more software or firmware Program processors (shared, dedicated, or chipset) and memory, combinational logic circuits, and/or other suitable components that provide the functions described above.

The acquisition unit 701 , the expansion unit 702 and the adjustment unit 703 may be processors, and the processors may be artificial intelligence chips, NPUs, CPUs, GPUs, etc., which are not limited herein. Based on the above unit modules, the functions or steps of any of the above methods can be implemented.

This embodiment also provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the above-mentioned computer program causes a computer to execute the embodiments of the present application, so as to realize any of the methods described above.

This embodiment also provides a computer program product, which, when the computer program product runs on a computer, causes the computer to execute the above-mentioned relevant steps, so as to implement any of the methods in the above-mentioned embodiments.

In addition, the embodiments of the present application also provide a brightness adjustment device, which may specifically be a chip, a component or a module, and the device may include a connected processor and a memory; wherein, the memory is used for storing computer execution instructions, and when the device runs At the time, the processor can execute the computer-executed instructions stored in the memory, so that the chip executes any one of the foregoing method embodiments.

Wherein, the electronic device, computer storage medium, computer program product or chip provided in this embodiment are all used to execute the corresponding method provided above. Therefore, for the beneficial effects that can be achieved, reference can be made to the corresponding provided above. The beneficial effects of the method will not be repeated here.

From the description of the above embodiments, those skilled in the art can understand that for the convenience and brevity of the description, only the division of the above functional modules is used as an example for illustration. In practical applications, the above functions can be allocated by different The function module is completed, that is, the internal structure of the device is divided into different function modules, so as to complete all or part of the functions described above.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of modules or units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or May be integrated into another device, or some features may be omitted, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

Units described as separate components may or may not be physically separated, and components shown as units may be one physical unit or multiple physical units, that is, may be located in one place, or may be distributed in multiple different places. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a readable storage medium. Based on this understanding, the technical solutions of the embodiments of the present application can be embodied in the form of software products in essence, or the parts that make contributions to the prior art, or all or part of the technical solutions, which are stored in a storage medium. , including several instructions to make a device (may be a single chip microcomputer, a chip, etc.) or a processor (processor) to execute all or part of the steps of the methods of the various embodiments of the present application. The aforementioned storage medium includes: a U disk, a removable hard disk, a read only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk and other media that can store program codes.

The above content is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this. Covered within the scope of protection of this application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (12)

1. a brightness adjustment method, is characterized in that, is applied to electronic equipment, described method comprises: Obtaining a current display brightness level, the electronic device includes N display brightness levels, the current display brightness level is any display brightness level in the N display brightness levels, and N is an integer greater than 1; When the current display brightness level is lower than a preset threshold, determining a target display brightness level corresponding to the current display brightness level, where the target display brightness level is an extended level corresponding to the current display brightness level; The backlight brightness is adjusted according to the target display brightness level. 2. The method according to claim 1, wherein the determining the target display brightness level corresponding to the current display brightness level comprises: Expanding the display brightness level of the preset interval range by the number of levels, to obtain M display brightness levels, the preset interval range includes the current display brightness level, and M is an integer greater than 1; The target display brightness level corresponding to the current display brightness level is determined according to the M display brightness levels. 3. The method according to claim 2, wherein the display brightness level of the preset interval range is expanded by the number of levels to obtain M display brightness levels, comprising: According to the polynomial color calibration matrix PCC parameter, the display brightness levels of the preset interval range are extended by the number of levels to obtain the M display brightness levels. 4. The method according to claim 3, wherein the display brightness level of the preset interval range is expanded by the number of levels according to the polynomial color calibration matrix PCC parameter, so as to obtain the M display brightness levels, comprising: determining the lower limit value and the upper limit value of the preset interval range; determining a first gamma parameter corresponding to the lower limit value and a second gamma parameter corresponding to the upper limit value; obtaining a gamma curve segment between the first gamma parameter and the second gamma parameter; The gamma curve segment is uniformly sampled to obtain M points, each point corresponding to a gamma parameter; Determine the polynomial color calibration matrix PCC parameter of each point according to the gamma parameters of the M points to obtain M PCC parameters; The display brightness levels of the preset interval range are expanded by the number of levels according to the M PCC parameters to obtain the M display brightness levels. 5 . The method according to claim 4 , wherein the display brightness levels of the preset interval range are expanded by the number of levels according to the M PCC parameters to obtain the M display brightness levels, including: 6 . : Determine the display brightness levels corresponding to the preset interval range, and obtain P display brightness levels, where P is a positive integer less than or equal to N; Determine the PCC parameter corresponding to each display brightness level in the P display brightness levels, obtain P groups of PCC parameters, and each group of PCC parameters includes M/P PCC parameters; Determine the product between each display brightness level in the P display brightness levels and the PCC parameters in the corresponding group of PCC parameters, to obtain P groups of products; The M display brightness levels are determined according to the P groups of products. 6. The method according to claim 4, wherein the performing uniform sampling on the gamma curve segment according to the gamma curve segment to obtain M points, comprising: performing an interception operation on the gamma curve segment to obtain at least one curve segment, and the endpoint of each curve segment in the at least one curve segment corresponds to a display brightness level; The at least one curve segment is uniformly sampled to obtain the M points. 7. The method according to any one of claims 2-6, wherein the determining the target display brightness level corresponding to the current display brightness level according to the M display brightness levels comprises: displaying the M display brightness levels on the brightness bar; receiving a drag instruction for the brightness bar; In response to the dragging instruction, the display brightness level of the target selected by the user is determined. 8. The method according to any one of claims 2-6, wherein the determining the target display brightness level corresponding to the current display brightness level according to the M display brightness levels comprises: Get the target environment parameters; The target display brightness level corresponding to the target environment parameter is determined, and the target display brightness level is one display brightness level among the M display brightness levels. 9. The method according to any one of claims 1-8, wherein the method further comprises: When the current display brightness level is greater than or equal to the preset threshold, the backlight brightness is adjusted according to the N display brightness levels. 10. A brightness adjustment device, characterized in that, when applied to electronic equipment, the device comprises: an acquisition unit, an expansion unit, and an adjustment unit, wherein, The obtaining unit is configured to obtain the current display brightness level, the electronic device includes N display brightness levels, the current display brightness level is any display brightness level in the N display brightness levels, and N is greater than 1 the integer; The expansion unit is configured to determine a target display brightness level corresponding to the current display brightness level when the current display brightness level is lower than a preset threshold, where the target display brightness level corresponds to the current display brightness level extension level; The adjustment unit is configured to adjust the backlight brightness according to the target display brightness level. 11. An electronic device, characterized in that the electronic device comprises a processor and a memory, the memory is used to store one or more programs, and is configured to be executed by the processor, the program including a program for executing the program as claimed in the claims Instructions for steps in the method of any one of 1-9. 12. A computer-readable storage medium, characterized by storing a computer program for electronic data exchange, wherein the computer program causes a computer to perform the method according to any one of claims 1-9.

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