CN115691416A - Ambient light collection method and device - Google Patents

Abstract

The application discloses a method and a device for collecting ambient light, which belong to the technical field of electronic equipment. The ambient light collection method includes: receiving an ambient light collection request sent by an ambient light sensor; responding to the ambient light collection request, according to the target width of the PWM dimming off interval corresponding to the ambient light collection, the first width of the PWM dimming on interval, The total length of the screen of the electronic device and the first time period during which the PWM dimming signal of the screen is transmitted from the first end of the screen to the second end determine the first frequency of the PWM dimming signal of the screen; wherein the target width is greater than that used for penetrating ambient light The second width of the light-transmitting hole; the PWM dimming signal of the target screen is sent at the first frequency and the second frequency, so that when the ambient light sensor collects ambient light, the width of the PWM dimming off interval is greater than the second width, wherein, the first The second frequency is the frequency of the original screen PWM dimming signal.

Description

Ambient light collection method and device

technical field

The present application belongs to the technical field of electronic equipment, and in particular relates to a method and device for collecting ambient light.

Background technique

With the continuous improvement of Organic Light-Emitting Diode (OLED) technology, high-frequency pulse width modulation (Pulse width modulation, PWM) dimming technology has been gradually applied to various electronic devices (such as mobile phones, tablets, computers, etc.) wait). Compared with low-frequency PWM dimming technology, high-frequency PWM dimming technology can reduce eye discomfort caused by screen flicker and improve user experience.

In the related art, when adjusting the brightness of the screen, it is necessary to use the ambient light sensor arranged under the screen and working in the off interval of PWM dimming to collect ambient light.

However, in some cases, for example, when high-frequency PWM dimming technology is used for dimming or when the screen brightness is high, the width of the off-range of PWM dimming is not enough to cover the shading foam on the back of the screen for ambient light transmission. The width of the light transmission hole is shown in Figure 1. In Figure 1, ① is the PWM dimming off interval, and ② is the light transmission hole, which allows the ambient light sensor to collect the light emitted by the screen when collecting ambient light. , the ambient light collected is inaccurate, which in turn affects the accuracy of calculations such as ambient light intensity and color temperature, and affects the accuracy of screen brightness adjustment.

Contents of the invention

The purpose of the embodiments of the present application is to provide a method and device for collecting ambient light, which can solve the problem of inaccurate collection of ambient light.

In the first aspect, the embodiment of the present application provides a method for collecting ambient light, including:

Receive the ambient light collection request sent by the ambient light sensor;

In response to the ambient light collection request, according to the target width of the PWM dimming off interval corresponding to the ambient light collection, the first width of the PWM dimming on interval, the total screen length of the electronic device, and the PWM dimming signal of the screen from the first The first duration of transmission from the terminal to the second terminal determines the first frequency of the PWM dimming signal of the screen; wherein, the target width is greater than the second width of the light-transmitting hole used to pass through the ambient light;

Send the target screen PWM dimming signal at the first frequency and the second frequency, so that when the ambient light sensor collects ambient light, the width of the PWM dimming off interval is greater than the second width, wherein the second frequency is the original screen PWM dimming the frequency of the signal.

In the second aspect, the embodiment of the present application provides an ambient light collection device, including:

The receiving module is configured to receive the ambient light collection request sent by the ambient light sensor;

The first determining module is configured to respond to the ambient light collection request, according to the target width of the PWM dimming off interval corresponding to the ambient light collection, the first width of the PWM dimming on interval, the total length of the screen of the electronic device, and the PWM dimming of the screen. The first duration of the light signal being transmitted from the first end of the screen to the second end determines the first frequency of the PWM dimming signal of the screen; wherein, the target width is greater than the second width of the light-transmitting hole used to pass through the ambient light;

The transmitting module is configured to send a target screen PWM dimming signal at a first frequency and a second frequency, so that when the ambient light sensor collects ambient light, the width of the PWM dimming off interval is greater than the second width, wherein the second frequency is The frequency of the original screen PWM dimming signal.

In the third aspect, the embodiment of the present application provides an electronic device, including a processor and a memory, and the memory stores programs or instructions that can be run on the processor, and when the programs or instructions are executed by the processor, the electronic device described in the first aspect is implemented. method steps.

In a fourth aspect, an embodiment of the present application provides a readable storage medium, on which a program or an instruction is stored, and when the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented.

In the fifth aspect, the embodiment of the present application provides a chip, including a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps of the method described in the first aspect.

In a sixth aspect, an embodiment of the present application provides a computer program product, the program product is stored in a storage medium, and the program product is executed by at least one processor to implement the steps of the method described in the first aspect.

In the embodiment of the present application, after receiving the ambient light collection request sent by the ambient light sensor, according to the target width of the PWM dimming off interval corresponding to the ambient light collection, the first width of the PWM dimming on interval, and the electronic device's The total length of the screen and the first duration of the screen PWM dimming signal transmitted from the first end of the screen to the second end determine the first frequency of the screen PWM dimming signal; then, the determined first frequency and the original screen PWM dimming The second frequency of the signal sends out the target screen PWM dimming signal. When the ambient light sensor is collecting ambient light, the width of the PWM dimming off interval is greater than the width of the light transmission hole used to pass through the ambient light, and the width of the PWM dimming off interval can cover the width of the light transmission hole. When collecting ambient light, the light emitted by the screen will not be collected, which can ensure the accuracy of the collected ambient light, thereby improving the accuracy of calculations such as ambient light intensity and color temperature, and improving the accuracy of screen brightness adjustment.

Description of drawings

FIG. 1 is a schematic diagram of the PWM dimming off interval and the position of the light transmission hole when ambient light is collected in the related art;

FIG. 2 is a schematic flowchart of an ambient light collection method provided in an embodiment of the present application;

Fig. 3 is a schematic diagram of the width of each object provided by the embodiment of the present application;

Fig. 4 is a first schematic diagram of sending a target screen PWM dimming signal provided by an embodiment of the present application;

Fig. 5 is a second schematic diagram of sending a target screen PWM dimming signal provided by an embodiment of the present application;

6 is a schematic structural diagram of an ambient light collection device provided in an embodiment of the present application;

FIG. 7 is a schematic structural diagram of an electronic device provided by an embodiment of the present application;

FIG. 8 is a schematic diagram of a hardware structure of an electronic device implementing an embodiment of the present application.

Detailed ways

The following will clearly describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of them. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in this application belong to the protection scope of this application.

The terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It should be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application can be practiced in sequences other than those illustrated or described herein, and that references to "first," "second," etc. distinguish Objects are generally of one type, and the number of objects is not limited. For example, there may be one or more first objects. In addition, "and/or" in the specification and claims means at least one of the connected objects, and the character "/" generally means that the related objects are an "or" relationship.

The method and device for collecting ambient light provided by the embodiments of the present application will be described in detail below through specific embodiments and application scenarios with reference to the accompanying drawings.

FIG. 2 is a schematic flowchart of an ambient light collection method provided in an embodiment of the present application. As shown in Figure 2, ambient light collection methods can include:

S201: Receive an ambient light collection request sent by an ambient light sensor;

S202: In response to the ambient light collection request, according to the target width of the PWM dimming off interval corresponding to the ambient light collection, the first width of the PWM dimming on interval, the total length of the screen of the electronic device, and the PWM dimming signal of the screen from the screen The first duration of transmission from the first end to the second end determines the first frequency of the PWM dimming signal of the screen; wherein, the target width is greater than the second width of the light-transmitting hole for passing ambient light;

S203: Send the target screen PWM dimming signal with the first frequency and the second frequency, so that when the ambient light sensor collects ambient light, the width of the PWM dimming off interval is greater than the second width, wherein the second frequency is the original screen PWM The frequency of the dimming signal.

The specific implementation of the above steps will be described in detail below.

In the embodiment of the present application, after receiving the ambient light collection request sent by the ambient light sensor, according to the target width of the PWM dimming off interval corresponding to the ambient light collection, the first width of the PWM dimming on interval, and the electronic device's The total length of the screen and the first duration of the screen PWM dimming signal transmitted from the first end of the screen to the second end determine the first frequency of the screen PWM dimming signal; then, the determined first frequency and the original screen PWM dimming The second frequency of the signal sends out the target screen PWM dimming signal. When the ambient light sensor is collecting ambient light, the width of the PWM dimming off interval is greater than the width of the light transmission hole used to pass through the ambient light, and the width of the PWM dimming off interval can cover the width of the light transmission hole. When collecting ambient light, the light emitted by the screen will not be collected, which can ensure the accuracy of the collected ambient light, thereby improving the accuracy of calculations such as ambient light intensity and color temperature, and improving the accuracy of screen brightness adjustment.

In some possible implementations of the embodiments of the present application, the first end and the second end in the embodiments of the present application may refer to the top and bottom of the screen, respectively, where the top and bottom of the screen are the upper and lower edges of the screen, respectively. edge.

In some possible implementations of the embodiments of the present application, the target width of the corresponding PWM dimming off interval, the width of the PWM dimming on interval, the width of the light transmission hole, the total length of the screen, and the distance from the light transmission hole to the screen when collecting ambient light The width of each object such as the distance from the top is shown in Figure 3.

Among them, in Fig. 3, W ₁ is the target width of the PWM dimming off interval corresponding to ambient light collection, W ₂ is the width of the light transmission hole, W ₃ is the width of the PWM dimming on interval, W ₄ is the total screen width. Length, W ₀ is the distance from the light transmission hole to the top of the screen.

The transmission speed of the PWM dimming signal of the screen is W ₄ /T ₄ , where T ₄ is the first duration of transmission of the PWM dimming signal of the screen from the top to the bottom of the screen.

The time used by the screen PWM dimming signal to transmit W ₁

The time used by the screen PWM dimming signal to transmit W ₃

Then the first frequency of the screen PWM dimming signal:

It can also be understood that the time taken for the screen PWM dimming signal to be transmitted to W ₁ +W ₃ is (W ₁ +W ₃ )×T ₄ /W ₄ , then the first frequency of the screen PWM dimming signal

Therefore, the first frequency F of the PWM dimming signal of the screen can be calculated according to the following formula (1):

When the transmission range of the PWM dimming signal of the target screen is the entire screen, sending the PWM dimming signal of the target screen is shown in FIG. 4 .

It can be understood that, in this embodiment, the target screen PWM dimming signal includes two frequencies (the above-mentioned first frequency and the second frequency), that is, the target screen PWM dimming signal is a mixed-frequency PWM dimming signal.

In the embodiment of the present application, on the one hand, it can be ensured that when ambient light is collected, the width of the PWM dimming off interval is greater than the width of the light transmission hole, the width of the PWM dimming off interval can cover the width of the light transmission hole, and the ambient light sensor When collecting ambient light, the light emitted by the screen will not be collected, which can ensure the accuracy of the collected ambient light. On the other hand, when ambient light collection is not performed, high-frequency PWM dimming can be guaranteed to reduce eye discomfort caused by screen flicker.

In some possible implementations of the embodiments of the present application, the screen may include a first area and a second area, wherein the first area includes an area opposite to the light transmission hole, and the second area is an area other than the first area; the target The screen PWM dimming signal includes a first screen PWM dimming signal and an original screen PWM dimming signal; S203 may include: in the first area, sending the first screen PWM dimming signal at a first frequency; in the second area, Send out the original screen PWM dimming signal with the second frequency.

Sending the PWM dimming signal of the target screen is shown in FIG. 5 , which is a second schematic diagram of sending the PWM dimming signal of the target screen provided by the embodiment of the present application.

In Fig. 5, the screen includes area 1 and area 2, the first screen PWM dimming signal is only transmitted in area 1 with the first frequency, and the original screen PWM dimming signal is only transmitted in area 2 with the frequency of the original screen PWM dimming signal frequency transmission.

In the embodiment of the present application, since the first screen PWM dimming signal is only transmitted in the area of the screen opposite to the light transmission hole, the original screen PWM dimming signal is only transmitted in another area of the screen. On the one hand, It can ensure that when ambient light is collected, the width of the PWM dimming off interval is greater than the width of the light transmission hole, and the width of the PWM dimming off interval can cover the width of the light transmission hole. The ambient light sensor will not collect the screen when collecting ambient light The emitted light can ensure the accuracy of the collected ambient light. On the other hand, when ambient light is collected, the frequency of the PWM dimming signal of the screen in other areas will not be affected, so that other areas can also ensure high-frequency PWM dimming and reduce eye discomfort caused by screen flicker.

In some possible implementations of the embodiments of the present application, the ambient light collection method provided in the embodiments of the present application may further include: calculating the second duration T ₂ for the ambient light sensor to collect ambient light according to the following formula (2):

T ₂ =W ₁ ×T ₄ /W ₄ -W ₂ ×T ₄ /W ₄ (2)

In some possible implementations of the embodiments of the present application, the ambient light collection method provided in the embodiments of the present application may further include: calculating the start time T ₀ of collecting ambient light by the ambient light sensor based on the following formula (3):

T ₀ =(W ₀ +W ₂ )×T ₄ /W ₄ (3)

It can be understood that after the ambient light collection request sent by the ambient light sensor, it will take a certain amount of time for the PWM dimming signal of the screen to reach the light transmission hole and the width of the PWM dimming off interval to completely cover the width of the light transmission hole. Ambient light is collected when the width of the PWM dimming off interval completely covers the width of the light transmission hole.

目标屏幕PWM调光信号传输透光孔W₂所使用的时间

则环境光传感器采集环境光的开始时间T₀＝t₂+t₁＝W₀×T₄/W₄+W₂×T₄/W₄＝(W₀+W₂)×T₄/W₄。The time used when the PWM dimming signal of the target screen is transmitted to the light transmission hole

The time it takes for the PWM dimming signal of the target screen to transmit the light transmission hole W ₂

Then the start time of ambient light sensor collecting ambient light T ₀ =t ₂ +t ₁ =W ₀ ×T ₄ /W ₄ +W ₂ ×T ₄ /W ₄ =(W ₀ +W ₂ )×T ₄ /W ₄ .

It can also be understood that the distance from the PWM dimming signal of the target screen to the light transmission hole is W ₀ +W ₂ , and the time taken for the PWM dimming signal of the target screen to transmit W ₀ +W ₂ is the ambient light sensor acquisition environment Light start time T ₀ =(W ₀ +W ₂ )×T ₄ /W ₄ .

In the embodiment of this application, it can ensure that the width of the PWM dimming off interval completely covers the width of the light transmission hole, and the ambient light sensor will not collect the light emitted by the screen when collecting ambient light, which can ensure the accuracy of the collected ambient light. In turn, it can improve the accuracy of calculations such as ambient light intensity and color temperature, and improve the accuracy of screen brightness adjustment.

It should be noted that, the ambient light collection method provided in the embodiment of the present application may be executed by an ambient light collection device. In the embodiment of the present application, the ambient light collection method performed by the ambient light collection device is taken as an example to describe the ambient light collection device provided in the embodiment of the present application.

FIG. 6 is a schematic structural diagram of an ambient light collection device provided in an embodiment of the present application. As shown in FIG. 6, the ambient light collection device 600 may include:

The receiving module 601 is configured to receive the ambient light collection request sent by the ambient light sensor;

The first determination module 602 is configured to respond to the ambient light collection request, according to the target width of the PWM dimming off interval corresponding to the ambient light collection, the first width of the PWM dimming on interval, the total screen length of the electronic device, and the screen PWM The first duration of the dimming signal transmitted from the first end of the screen to the second end determines the first frequency of the PWM dimming signal of the screen; wherein, the target width is greater than the second width of the light-transmitting hole for passing ambient light;

The transmitting module 603 is configured to send a target screen PWM dimming signal at a first frequency and a second frequency, so that when the ambient light sensor collects ambient light, the width of the PWM dimming off interval is greater than the second width, wherein the second frequency The frequency of the PWM dimming signal for the original screen.

In the embodiment of the present application, after receiving the ambient light collection request sent by the ambient light sensor, according to the target width of the PWM dimming off interval corresponding to the ambient light collection, the first width of the PWM dimming on interval, and the electronic device's The total length of the screen and the first duration of the screen PWM dimming signal transmitted from the first end of the screen to the second end determine the first frequency of the screen PWM dimming signal; then, the determined first frequency and the original screen PWM dimming The second frequency of the signal sends out the target screen PWM dimming signal. When the ambient light sensor is collecting ambient light, the width of the PWM dimming off interval is greater than the width of the light transmission hole used to pass through the ambient light, and the width of the PWM dimming off interval can cover the width of the light transmission hole. When collecting ambient light, the light emitted by the screen will not be collected, which can ensure the accuracy of the collected ambient light, thereby improving the accuracy of calculations such as ambient light intensity and color temperature, and improving the accuracy of screen brightness adjustment.

In some possible implementations of the embodiments of the present application, the screen includes a first area and a second area, wherein the first area includes an area opposite to the light transmission hole, and the second area is an area other than the first area; the target screen The PWM dimming signal includes the first screen PWM dimming signal and the original screen PWM dimming signal;

The transmitting module 603 may include:

The first sending sub-module is configured to send a first screen PWM dimming signal at a first frequency in the first area;

The second sending sub-module is used to send out the original screen PWM dimming signal at the second frequency in the second area.

In the embodiment of the present application, since the first screen PWM dimming signal is only transmitted in the area of the screen opposite to the light transmission hole, the original screen PWM dimming signal is only transmitted in another area of the screen. On the one hand, It can ensure that when ambient light is collected, the width of the PWM dimming off interval is greater than the width of the light transmission hole, and the width of the PWM dimming off interval can cover the width of the light transmission hole. The ambient light sensor will not collect the screen when collecting ambient light The emitted light can ensure the accuracy of the collected ambient light. On the other hand, when ambient light is collected, the frequency of the PWM dimming signal of the screen in other areas will not be affected, so that other areas can also ensure high-frequency PWM dimming and reduce eye discomfort caused by screen flicker.

In some possible implementations of the embodiments of this application, the first determination module may be specifically configured to:

The first frequency of the PWM dimming signal of the screen is calculated according to the above formula (1).

In some possible implementations of the embodiments of the present application, the ambient light collection device 600 may further include:

The second determining module is configured to calculate the second duration for the ambient light sensor to collect ambient light according to the above formula (2).

In some possible implementations of the embodiments of the present application, the ambient light collection device 600 may further include:

The third determining module is configured to calculate the start time of collecting ambient light by the ambient light sensor according to the above formula (3).

In the embodiment of this application, it can ensure that the width of the PWM dimming off interval completely covers the width of the light transmission hole, and the ambient light sensor will not collect the light emitted by the screen when collecting ambient light, which can ensure the accuracy of the collected ambient light. In turn, it can improve the accuracy of calculations such as ambient light intensity and color temperature, and improve the accuracy of screen brightness adjustment.

The ambient light collection device in the embodiment of the present application may be an electronic device, or may be a component in the electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal, or other devices other than the terminal. Exemplarily, the electronic device may be a mobile phone, a tablet computer, a notebook computer, a handheld computer, a vehicle electronic device, a mobile Internet device (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/virtual reality (virtual reality, VR ) equipment, robots, wearable devices, ultra-mobile personal computer (ultra-mobilepersonal computer, UMPC), netbook or personal digital assistant (personal digital assistant, PDA), etc. ), a personal computer (personal computer, PC), a television (television, TV), a teller machine or a self-service machine, etc., which are not specifically limited in this embodiment of the present application.

The ambient light collection device in the embodiment of the present application may be a device with an operating system. The operating system may be an Android operating system, an iOS operating system, or other possible operating systems, which are not specifically limited in this embodiment of the present application.

The ambient light collection device provided in the embodiment of the present application can realize each process in the embodiments of the ambient light collection method shown in FIG. 2 to FIG. 5 , and details are not repeated here to avoid repetition.

Optionally, as shown in FIG. 7 , the embodiment of the present application also provides an electronic device 700, including a processor 701 and a memory 702. The memory 702 stores programs or instructions that can run on the processor 701. The program or instructions When executed by the processor 701, each step of the above ambient light collection method embodiment can be realized, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.

In some possible implementations of the embodiments of the present application, the processor 701 may include a central processing unit (CPU), or a specific integrated circuit (Application Specific Integrated Circuit, ASIC), or may be configured to implement one or more of the embodiments of the present application. an integrated circuit.

In some possible implementations of the embodiments of the present application, the memory 702 may include a read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a disk storage medium device, an optical storage medium device, a flash memory device , electrical, optical, or other physical/tangible memory storage devices. Thus, in general, memory 702 includes one or more tangible (non-transitory) computer-readable storage media (e.g., memory devices) encoded with software comprising computer-executable instructions, and when the software is executed (e.g., by a or a plurality of processors), it is operable to perform the operations described with reference to the ambient light collection method according to the embodiments of the present application.

FIG. 8 is a schematic diagram of a hardware structure of an electronic device implementing an embodiment of the present application.

The electronic device 800 includes, but is not limited to: a radio frequency unit 801, a network module 802, an audio output unit 803, an input unit 804, a sensor 805, a display unit 806, a user input unit 807, an interface unit 808, a memory 809, and a processor 810, etc. part.

Those skilled in the art can understand that the electronic device 800 can also include a power supply (such as a battery) for supplying power to various components, and the power supply can be logically connected to the processor 810 through the power management system, so that the management of charging, discharging, and function can be realized through the power management system. Consumption management and other functions. The structure of the electronic device shown in FIG. 8 does not constitute a limitation to the electronic device. The electronic device may include more or fewer components than shown in the figure, or combine some components, or arrange different components, and details will not be repeated here. .

Wherein, the processor 810 is used to: receive the ambient light collection request sent by the ambient light sensor; respond to the ambient light collection request, according to the target width of the PWM dimming off interval corresponding to the ambient light collection, the first PWM dimming on interval Width, the total length of the screen of the electronic device 800 and the first duration of the screen PWM dimming signal transmitted from the first end to the second end of the screen determine the first frequency of the screen PWM dimming signal; The second width of the light-transmitting hole of the ambient light; the PWM dimming signal of the target screen is sent at the first frequency and the second frequency, so that when the ambient light sensor collects the ambient light, the width of the PWM dimming off interval is greater than the second width, Wherein, the second frequency is the frequency of the original screen PWM dimming signal.

In the embodiment of the present application, after receiving the ambient light collection request sent by the ambient light sensor, according to the target width of the PWM dimming off interval corresponding to the ambient light collection, the first width of the PWM dimming on interval, and the electronic device's The total length of the screen and the first duration of the screen PWM dimming signal transmitted from the first end of the screen to the second end determine the first frequency of the screen PWM dimming signal; then, the determined first frequency and the original screen PWM dimming The second frequency of the signal sends out the target screen PWM dimming signal. When the ambient light sensor is collecting ambient light, the width of the PWM dimming off interval is greater than the width of the light transmission hole used to pass through the ambient light, and the width of the PWM dimming off interval can cover the width of the light transmission hole. When collecting ambient light, the light emitted by the screen will not be collected, which can ensure the accuracy of the collected ambient light, thereby improving the accuracy of calculations such as ambient light intensity and color temperature, and improving the accuracy of screen brightness adjustment.

In some possible implementations of the embodiments of the present application, the screen includes a first area and a second area, wherein the first area includes an area opposite to the light transmission hole, and the second area is an area other than the first area; the target screen The PWM dimming signal includes the first screen PWM dimming signal and the original screen PWM dimming signal; the processor 810 can be specifically used for:

In the first area, sending a first screen PWM dimming signal with a first frequency;

In the second area, the original screen PWM dimming signal is sent out at the second frequency.

In the embodiment of the present application, since the first screen PWM dimming signal is only transmitted in the area of the screen opposite to the light transmission hole, the original screen PWM dimming signal is only transmitted in another area of the screen. On the one hand, It can ensure that when ambient light is collected, the width of the PWM dimming off interval is greater than the width of the light transmission hole, and the width of the PWM dimming off interval can cover the width of the light transmission hole. The ambient light sensor will not collect the screen when collecting ambient light The emitted light can ensure the accuracy of the collected ambient light. On the other hand, when ambient light is collected, the frequency of the PWM dimming signal of the screen in other areas will not be affected, so that other areas can also ensure high-frequency PWM dimming and reduce eye discomfort caused by screen flicker.

In some possible implementations of the embodiments of this application, the processor 810 may be specifically configured to:

The first frequency of the PWM dimming signal of the screen is calculated according to the above formula (1).

In some possible implementations of the embodiments of this application, the processor 810 may also be used to:

The second time period for the ambient light sensor to collect ambient light is calculated according to the above formula (2).

In some possible implementations of the embodiments of this application, the processor 810 may also be used to:

The start time of collecting ambient light by the ambient light sensor is calculated according to the above formula (3).

In the embodiment of this application, it can ensure that the width of the PWM dimming off interval completely covers the width of the light transmission hole, and the ambient light sensor will not collect the light emitted by the screen when collecting ambient light, which can ensure the accuracy of the collected ambient light. In turn, it can improve the accuracy of calculations such as ambient light intensity and color temperature, and improve the accuracy of screen brightness adjustment.

It should be understood that, in the embodiment of the present application, the input unit 804 may include a graphics processor (Graphics Processing Unit, GPU) 8041 and a microphone 8042, and the graphics processor 8041 is compatible with the image capture device (such as Camera) to process the image data of still pictures or videos. The display unit 806 may include a display panel 8061, and the display panel 8061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 807 includes at least one of a touch panel 8071 and other input devices 8072 . The touch panel 8071 is also called a touch screen. The touch panel 8071 may include two parts, a touch detection device and a touch controller. Other input devices 8072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, and joysticks, which will not be repeated here.

The memory 809 can be used to store software programs as well as various data. The memory 809 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instructions required by at least one function (such as a sound playing function, image playback function, etc.), etc. Furthermore, memory 809 may include volatile memory or nonvolatile memory, or, memory 809 may include both volatile and nonvolatile memory. Wherein, the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electronically programmable Erase Programmable Read-Only Memory (Electrically EPROM, EEPROM) or Flash. Volatile memory can be random access memory (Random Access Memory, RAM), static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (Synch link DRAM , SLDRAM) and Direct Memory Bus Random Access Memory (Direct Rambus RAM, DRRAM). The memory 809 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

The processor 810 may include one or more processing units; optionally, the processor 810 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to the operating system, user interface, and application programs, etc., Modem processors mainly process wireless communication signals, such as baseband processors. It can be understood that the foregoing modem processor may not be integrated into the processor 810 .

The embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored, and when the program or instruction is executed by a processor, each process of the above-mentioned embodiment of the ambient light collection method can be achieved, and can achieve the same Technical effects, in order to avoid repetition, will not be repeated here.

Wherein, the processor is the processor in the electronic device in the foregoing embodiments. The readable storage medium includes a computer-readable storage medium, and examples of the computer-readable storage medium include non-transitory computer-readable storage media, such as ROM, RAM, magnetic disks, or optical disks.

The embodiment of the present application also provides a chip, including a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to realize the various processes of the above-mentioned ambient light collection method embodiments, and can achieve the same Technical effects, in order to avoid repetition, will not be repeated here.

It should be understood that the chips mentioned in the embodiments of the present application may also be called system-on-chip, system-on-chip, system-on-a-chip, or system-on-a-chip.

An embodiment of the present application provides a computer program product, the program product is stored in a storage medium, and the program product is executed by at least one processor to implement the various processes in the above-mentioned embodiment of the ambient light collection method, and can achieve the same technology Effect, in order to avoid repetition, will not repeat them here.

It should be noted that, in this document, the term "comprising", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions are performed, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation. Based on this understanding, the essence of the technical solution of this application or the part that contributes to related technologies can be embodied in the form of computer software products, which are stored in a storage medium (such as ROM/RAM, disk, CD) contains several instructions to enable a terminal (which may be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in various embodiments of the present application.

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementations. The above-mentioned specific implementations are only illustrative and not restrictive. Those of ordinary skill in the art will Under the inspiration of this application, without departing from the purpose of this application and the scope of protection of the claims, many forms can also be made, all of which belong to the protection of this application.

Claims (10)

1. An ambient light collection method, the method comprising:

receiving an ambient light acquisition request sent by an ambient light sensor;

responding to the ambient light acquisition request, and determining a first frequency of a screen PWM dimming signal according to a target width of a PWM dimming off interval, a first width of a PWM dimming on interval, a total screen length of the electronic equipment and a first duration of transmission of the screen PWM dimming signal from a first end to a second end of the screen corresponding to the ambient light acquisition; wherein the target width is greater than a second width of a light transmission hole for transmitting ambient light;

and sending a target screen PWM dimming signal by using the first frequency and the second frequency so that the width of a PWM dimming off interval is greater than the second width when an ambient light sensor collects ambient light, wherein the second frequency is the frequency of an original screen PWM dimming signal.

2. The method of claim 1, wherein the screen comprises a first area and a second area, wherein the first area comprises an area opposite to the light-transmissive hole, and the second area is an area other than the first area; the target screen PWM dimming signal comprises a first screen PWM dimming signal and the original screen PWM dimming signal;

the sending out the target screen PWM dimming signal at the first frequency and the second frequency comprises:

in the first region, emitting the first screen PWM dimming signal at the first frequency;

in the second region, the original screen PWM dimming signal is emitted at the second frequency.

3. The method of claim 1, wherein determining the first frequency of the screen PWM dimming signal according to the target width of the PWM dimming off interval, the first width of the PWM dimming on interval, the total screen length of the electronic device, and the first duration of the screen PWM dimming signal transmitted from the first end to the second end of the screen when the ambient light is collected comprises:

calculating the first frequency according to the following formula:

wherein F is the first frequency, W ₁ Is the target width, W ₃ Is the first width, W ₄ Is the total length of the screen, T ₄ Is the first duration.

4. The method of claim 1, further comprising:

calculating a second time period for the ambient light sensor to collect the ambient light according to the following formula:

T ₂ ＝W ₁ ×T ₄ /W ₄ -W ₂ ×T ₄ /W ₄

wherein, T ₂ Is the second duration, W ₁ Is the target width, W ₂ Is the second width, W ₄ Is the total length of the screen, T ₄ Is the first duration.

5. The method of claim 1, further comprising:

calculating a start time for the ambient light sensor to collect the ambient light according to the following formula:

T ₀ ＝(W ₀ +W ₂ )×T ₄ /W ₄

wherein, T ₀ Is the start time, W ₀ Is the first distance, W ₂ Is the second width, W ₄ Is the total length of the screen, T ₄ Is the first duration.

6. An ambient light collection device, the device comprising:

the receiving module is used for receiving an ambient light acquisition request sent by an ambient light sensor;

the first determining module is used for responding to the ambient light acquisition request, and determining a first frequency of a screen PWM dimming signal according to a target width of a PWM dimming off interval, a first width of a PWM dimming on interval, a total screen length of the electronic equipment and a first duration of transmission of the screen PWM dimming signal from a first end to a second end of the screen corresponding to the ambient light acquisition; wherein the target width is greater than a second width of a light-transmitting aperture for transmitting ambient light;

and the transmitting module is used for transmitting a target screen PWM dimming signal at the first frequency and the second frequency so that the width of a PWM dimming off interval is greater than the second width when the ambient light sensor collects ambient light, wherein the second frequency is the frequency of an original screen PWM dimming signal.

7. The apparatus of claim 6, wherein the screen comprises a first area and a second area, wherein the first area comprises an area opposite to the light-transmissive hole, and the second area is an area other than the first area; the target screen PWM dimming signal comprises a first screen PWM dimming signal and the original screen PWM dimming signal;

the transmission module includes:

the first sending submodule is used for sending the first screen PWM dimming signal at the first frequency in the first area;

a second emitting submodule for emitting the original screen PWM dimming signal at the second frequency in the second region.

8. The apparatus of claim 6, wherein the first determining module is specifically configured to:

calculating the first frequency according to the following formula:

wherein F is the first frequency, W ₁ Is the target width, W ₃ Is the first width, W ₄ Is the total length of the screen, T ₄ Is the first duration.

9. The apparatus of claim 6, further comprising:

a second determining module, configured to calculate a second time period for the ambient light sensor to collect the ambient light according to the following formula:

T ₂ ＝W ₁ ×T ₄ /W ₄ -W ₂ ×T ₄ /W ₄

wherein, T ₂ Is the second duration, W ₁ Is the target width, W ₂ Is the second width, W ₄ Is the total length of the screen, T ₄ Is the first duration.

10. The apparatus of claim 6, further comprising:

a third determining module, configured to calculate a starting time for the ambient light sensor to collect the ambient light according to the following formula:

T ₀ ＝(W ₀ +W ₂ )×T ₄ /W ₄

wherein, T ₀ Is the start time, W ₀ Is the first distance, W ₂ Is the second width, W ₄ Is the total length of the screen, T ₄ Is the first duration.

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