CN111862899A - Control method and electronic device - Google Patents

Abstract

The application discloses a control method and electronic equipment. The control method is used for the electronic equipment, and the electronic equipment comprises a display screen and an imaging device. The control method comprises the following steps: controlling an imaging device to acquire an image to obtain eye information of a current user; processing the eye information to judge whether the pupil area of the current user exceeds a preset pupil range, wherein the minimum value of the preset pupil range is a first preset value, and the maximum value of the preset pupil range is a second preset value; after the pupil area is smaller than a first preset value and lasts for a first preset time, controlling the display screen to reduce the display brightness; and controlling the display screen to increase the display brightness after the pupil area is larger than a second preset value and lasts for a second preset time. So, can adjust the display brightness of display screen according to the size of pupil area to make the demand that display brightness more matches user's eyes.

Description

Control method and electronic device

technical field

The present application relates to the technical field of consumer electronics, and in particular, to a control method and an electronic device.

Background technique

In the related art, the ambient light brightness can be obtained through an ambient light sensor, and then the brightness of the display screen can be adjusted according to the ambient light brightness. For example, when the ambient light brightness is high, the display screen brightness is increased, and when the ambient light brightness is low, the display screen brightness is reduced . However, since different users have different sensitivities to brightness, this adjustment method cannot well meet the needs of users' eyes.

SUMMARY OF THE INVENTION

The present application provides a control method and electronic device.

The control method of the embodiment of the present application can be applied to an electronic device, where the electronic device includes a display screen and an imaging device, and the control method includes: controlling the imaging device to acquire an image to obtain the eye information of the current user; processing the eye part information to determine whether the pupil area of the current user exceeds the preset pupil range, the minimum value of the preset pupil range is the first preset value, and the maximum value of the preset pupil range is the second preset value; After the pupil area is smaller than the first preset value and lasts for the first preset duration, the display screen is controlled to reduce the display brightness; when the pupil area is larger than the second preset value and lasts for the second preset duration Then, the display screen is controlled to increase the display brightness.

An electronic device according to an embodiment of the present application includes a display screen, an imaging device, and a processor, where the processor is configured to: control the imaging device to acquire an image to obtain eye information of the current user; process the eye information to determine the current user's eye information Whether the pupil area exceeds the preset pupil range, the minimum value of the preset pupil range is the first preset value, and the maximum value of the preset pupil range is the second preset value; After a preset value lasts for a first preset duration, the display screen is controlled to reduce the display brightness; after the pupil area is larger than the second preset value and lasts for a second preset duration, the display screen is controlled Turn up the display brightness.

The control method and electronic device of the present application can adjust the display brightness of the display screen according to the size of the pupil area, so that the display brightness can better match the needs of the user's eyes.

Additional aspects and advantages of the present application will be set forth, in part, from the following description, and in part will become apparent from the following description, or may be learned by practice of the present application.

Description of drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily understood from the following description of embodiments taken in conjunction with the accompanying drawings, wherein:

1 is a schematic flowchart of a control method according to an embodiment of the present application;

2 is a schematic diagram of an electronic device according to an embodiment of the present application;

Fig. 3 is another schematic flowchart of the control method of the embodiment of the present application;

FIG. 4 is another schematic flowchart of the control method according to the embodiment of the present application.

Main features reference numbers:

electronic equipment 100;

A processor 10 , an imaging device 20 , an infrared light source 21 , an infrared camera 22 , and a display screen 30 .

Detailed ways

The following describes in detail the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to be used to explain the present application, but should not be construed as a limitation to the present application.

The following disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, the components and arrangements of specific examples are described below. Of course, they are only examples and are not intended to limit the application. Furthermore, this application may repeat reference numerals and/or reference letters in different instances for the purpose of simplicity and clarity, and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed. In addition, this application provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

It should be pointed out that, in the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "thickness", "upper", "lower", "inner" and "outer" is based on the drawings shown in the drawings. The orientation or positional relationship is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present application.

Referring to FIG. 1, the control method of the embodiment of the present application includes:

011, controlling the imaging device to acquire an image to obtain the eye information of the current user;

012, processing the eye information to determine whether the pupil area of the current user exceeds a preset pupil range, the minimum value of the preset pupil range is the first preset value, and the maximum value of the preset pupil range is the second preset value;

013, after the pupil area is smaller than the first preset value and continues for the first preset duration, control the display screen 30 to lower the display brightness;

014. After the pupil area is greater than the second preset value and lasts for the second preset time period, control the display screen 30 to increase the display brightness.

Referring to FIG. 1 and FIG. 2 , the electronic device 100 according to the embodiment of the present application includes a display screen 30 , an imaging device 20 and a processor 10 . The control method of the embodiment of the present application may be implemented by the electronic device 100 of the embodiment of the present application, wherein step 011 , step 012 , step 013 and step 014 may all be implemented by the processor 10 . That is to say, the processor 10 can be used to control the imaging device to acquire images to obtain the eye information of the current user; process the eye information to determine whether the pupil area of the current user exceeds the preset pupil range, and the minimum value of the preset pupil range is The first preset value, the maximum value of the preset pupil range is the second preset value; after the pupil area is smaller than the first preset value and lasts for the first preset duration, the display screen 30 is controlled to lower the display brightness; After the value is greater than the second preset value and lasts for the second preset time period, the display screen 30 is controlled to increase the display brightness.

It should be pointed out that the eye information may include data such as the iris center, the iris edge, the pupil edge, and the pupil center, and the pupil area may be calculated according to the data of the pupil edge and the pupil center. The preset pupil range refers to the pupil area range of the user in a normal state, and the preset pupil range of different users may be different.

When the brightness of the user's pupil is high, the pupil area will become smaller; when the brightness is low, the pupil area will become larger. Therefore, after the user's pupil area is smaller than the first preset value and lasts for the first preset duration, it is considered that the brightness of the display screen 30 is high at this time, and the processor 10 controls the display screen 30 to lower the display brightness. After the user's pupil area is greater than the second preset value for the second preset duration, it is considered that the brightness of the display screen 30 is low at this time, and the processor 10 controls the display screen 30 to increase the display brightness. The setting of the first preset duration and the second preset duration prevents the user from adjusting the screen brightness due to changes in pupil area in a short time due to environmental or other factors.

In this way, the control method and electronic device 100 of the present application can adjust the display brightness of the display screen 30 according to the size of the pupil area, so that the display brightness can better match the needs of the user's eyes.

It can be understood that the electronic device 100 in the embodiments of the present application includes, but is not limited to, head-mounted electronic devices such as AR glasses and VR glasses, or other electronic devices such as mobile phones and tablet computers. In this document, the electronic device 100 is taken as an example of AR glasses for description.

Referring to FIG. 3, in some embodiments, the control method further includes:

015, processing eye information to determine whether the current user has been registered;

016, when the current user is not registered, the display screen is controlled to display a preset screen, and the preset pupil range is determined and registered according to the pupil change of the current user;

017. When the current user is registered, determine a preset pupil range.

In some embodiments, steps 015, 016 and 017 can all be implemented by the processor 10, that is to say, the processor 10 can be used to process the eye information to determine whether the current user has been registered; if the current user is not registered When , the display screen is controlled to display the preset screen, and the preset pupil range is determined and registered according to the pupil change of the current user; when the current user has been registered, the preset pupil range is determined.

Specifically, the processor 10 may store the user's eye information collected by the imaging device 20 in the electronic device 100. If the current user's eye information processed by the processor 10 can match the existing eye information data in the device, that is, The user is considered registered, otherwise the user is considered unregistered.

If the current user is not registered, the processor 10 controls the display screen 30 to display a preset screen, determines the preset pupil range according to the pupil change of the current user and performs registration; if the current user is registered, determines the preset pupil range.

Therefore, the eye information of different users can be distinguished and the brightness of the display screen 30 can be adjusted more reasonably, so as to avoid confusion of the eye information and wrong adjustment of the brightness of the display screen 30 when multiple users use the electronic device 100 .

It can be understood that, in some embodiments, the above-mentioned process of judging whether the user is registered can be completed through iris recognition, the imaging device 20 obtains the iris image of the current user, and the processor 10 performs feature extraction and feature matching on the iris image. If it matches the registered image, the current user is considered to be registered, otherwise, the current user is considered to be unregistered and the registration process is performed.

In another embodiment, the judging process may also adopt eye pattern recognition, which is implemented by collecting and comparing the eye patterns of the current user.

In certain embodiments, step 016 includes:

0161: When the current user is not registered, the display screen 30 is controlled to display a plurality of preset images respectively, and the preset pupil range and each preset change range are determined according to the pupil changes of the current user under each preset image and registered, and each The preset variation range corresponds to an adjustment amount;

Step 013 includes:

0131: After the pupil area is smaller than the first preset value and lasts for the first preset duration, controlling the display screen 30 to lower the display brightness, including: when the pupil area is smaller than the first preset value and is within one of the preset variation ranges, and After continuing for the first preset duration, the display brightness is lowered according to the corresponding adjustment amount;

Step 014 includes:

0141: After the pupil area is greater than the second preset value and lasts for the second preset duration, controlling the display screen 30 to increase the display brightness, including: when the pupil area is greater than the second preset value and is within one of the preset variation ranges, and After continuing for the second preset time period, the display brightness is increased according to the corresponding adjustment amount.

In some embodiments, steps 0161, 0131 and 0141 can all be implemented by the processor 10, that is to say, the processor 10 can be used to control the display screen 30 to display a plurality of presets respectively when the current user is not registered screen, according to the current user's pupil changes under each preset screen, determine the preset pupil range and each preset change range and register, and each preset change range corresponds to an adjustment amount; when the pupil area is smaller than the first preset value and within one of the preset change ranges for the first preset duration, reduce the display brightness according to the corresponding adjustment amount; when the pupil area is greater than the second preset value and within one of the preset change ranges and continues for the second After the preset time period, increase the display brightness according to the corresponding adjustment amount.

Specifically, if the current user is not registered, the processor 10 controls the display screen 30 to display a plurality of preset images respectively, and there is a difference in brightness between the multiple preset images (such as brighter and darker preset images and other brightness images). default screen).

For example, in one embodiment, five preset pictures of brightness are provided, namely, high brightness, high brightness, normal brightness, low brightness, and low brightness. When the user watches these pictures, the pupil will be affected by the brightness of the picture. When the brightness of the picture is higher than the normal brightness, the pupil area of the user becomes smaller; when the brightness of the picture is lower than the normal brightness, the pupil area of the user becomes larger. A preset pupil range and five preset change ranges are determined and registered according to the pupil changes of the current user under five preset screens, and each preset change range corresponds to an adjustment amount. In one embodiment, the adjustment amount of high brightness is greater than that of higher brightness, the adjustment amount of low brightness is greater than that of lower brightness, and the adjustment amount of normal brightness is 0.

After determining the preset pupil range and each preset variation range and registering, the processor 10 performs calculation and judgment processing on the pupil area of the current user. After the first preset duration, the display brightness is decreased according to the corresponding adjustment amount; after the pupil area is greater than the second preset value and within one of the preset variation ranges and continues for the second preset duration, the display brightness is increased according to the corresponding adjustment amount. Display brightness.

In this way, the amount of pupil change for different users to display brightness changes can be obtained, so that the electronic device 100 can achieve corresponding more accurate brightness changes for different users.

Referring to FIG. 4, in some embodiments, step 012 includes:

0121, process the eye information to determine the edge information of the pupil;

0122, determine the center information of the pupil according to the edge information;

0123, determine the pupil area according to the edge information and the center information;

0124: Determine whether the pupil area exceeds the preset pupil range.

In some embodiments, steps 0121, 0122, 0123 and 0124 can all be implemented by the processor 10, that is, the processor 10 can be used to process the eye information to determine the edge information of the pupil; determine the center of the pupil according to the edge information information; determine the pupil area according to the edge information and center information; determine whether the pupil area exceeds the preset pupil range.

In the process of eye information processing, the processor 10 first identifies the eye, obtains eye information according to the acquired eye image, processes the eye information, determines the edge information of the pupil, determines the pupil center information according to the pupil edge information, and then Calculate the pupil area according to the edge information and center information, and finally determine whether the pupil area exceeds the preset pupil range.

In this way, determining the pupil center and edge information is conducive to the realization of eye tracking, and the pupil area can also be accurately calculated in the case of eye movement, blinking, etc.

In some embodiments, the control method further includes: after the display screen 30 is turned down or up and a preset adaptation time period elapses, re-entering the step of controlling the imaging device 20 to acquire images to obtain the eye information of the current user.

In some embodiments, the processor 10 may be configured to re-enter the step of controlling the imaging device 20 to acquire an image to obtain the eye information of the current user after the display screen 30 is turned down or up and the display brightness is turned up and the preset adaptation period has passed.

Specifically, when the pupil area of the user changes for a preset duration, the processor 10 will control the display screen 30 to lower or increase the display brightness, and provide the user with a time to adapt to the adjusted brightness, so as to prevent the user from adapting to the current In the case of brightness, pupil area changes again lead to brightness adjustment. That is, the imaging device 20 and the processor 10 stop receiving and processing the user's eye information image during this adaptation time. After the preset adaptation time period has elapsed, the step of controlling the imaging device 20 to acquire an image to obtain the eye information of the current user is re-entered.

For example, during a certain period of time, the device screen brightness is high, and the user's pupil area becomes smaller and reaches the first preset duration, the processor 10 will reduce the display brightness of the display screen 30, and then enter the adaptation state. Since the screen changes from brighter to normal brightness at this time, and the brightness decreases, the user's pupil will have a process of enlargement during this period, and the processor 10 will not control the display screen 30 to change the brightness at this time.

In this way, frequent changes of screen brightness due to environmental or other factors during the use of the electronic device 100 by the user can be avoided, the user is given an adaptation process to the adjusted brightness, and the user experience is improved.

In certain embodiments, the control method further includes:

018, processing the eye information to determine whether the eyes of the current user are in a fatigued state;

019. When the eyes of the current user are in a fatigued state, a prompt message is issued.

In some embodiments, steps 018 and 019 may be implemented by the processor 10, that is, the processor 10 may be used to process the eye information to determine whether the eyes of the current user are in a fatigued state; when the eyes of the current user are in a fatigued state, Send an alert message.

In this way, when the user's eyes are in a tired state, prompt information such as "pay attention to rest" can be issued, thereby prompting the user to protect the eyes.

The prompt information may be text or image prompts on the display screen 30, vibrations of the electronic device 100, ringtones, voice prompts, or other prompts. For example, in one embodiment, the electronic device 100 uses the combined action of screen information prompts and device vibrations. When the user's eyes are in a state of fatigue, the electronic device 100 vibrates with a certain intensity, and at the same time, the display screen 30 displays a fatigue prompt. .

In certain embodiments, step 018 includes:

0181, process the eye information to determine the changing law of the pupil area of the current user;

0182, when the change rule is a preset rule, determine that the eyes of the current user are in a fatigued state.

In some embodiments, both steps 0180 and 0182 can be implemented by the processor 10, that is, the processor 10 can be used to process the eye information to determine the changing law of the pupil area of the current user; When setting the rule, it is determined that the eyes of the current user are in a fatigued state.

It should be noted that when the human eyes are in a state of fatigue, light sensitivity will occur, and changes in the brightness of the object being viewed will lead to overregulation of the pupil, that is, when the brightness changes, the pupil area will change more frequently. Therefore, it is possible to judge whether the user's eyes are in a fatigued state through the changing law of the user's pupil area. If the changing law of the user's pupil area is a preset law, the user's eyes are considered to be in a fatigued state. has changed more than the preset number of times.

In certain embodiments, step 018 further includes:

0183, process eye information to determine the blink frequency of the current user;

0184. When the blinking frequency is greater than the preset frequency, determine that the eyes of the current user are in a fatigued state.

In some embodiments, both steps 0183 and 0184 can be implemented by the processor 10, that is, the processor 10 can be used to process eye information to determine the current user's blink frequency; when the blink frequency is greater than the preset frequency , to determine that the current user's eyes are fatigued.

It should be noted that people blink more frequently when their eyes are tired. Thus, the processor 10 processes the eye information to determine the current user's blink frequency, which can be calculated by recording the number of times the pupil area is 0 or the imaging device 20 does not detect the pupil per unit time. When the blinking frequency is greater than the preset frequency, it is determined that the eyes of the current user are in a fatigued state.

For example, the preset frequency can be set to 16 times/min (normal people blink at 15 times/min). When the user blinks more than 16 times in a period of time, the processor 10 determines that the user's eyes are in a fatigued state.

In this way, the electronic device 100 can detect the user's fatigue state more accurately, making the device more user-friendly.

In certain embodiments, step 018 further includes:

0185, process the eye information to determine whether the pupil of the current user is in an open state;

0186. Accumulate time when the pupil of the current user is in the open state to obtain the opening duration;

0187. When the opening duration is greater than the predetermined duration, determine that the eyes of the current user are in a fatigued state.

In some embodiments, steps 0185, 0186 and 0187 can all be implemented by the processor 10, that is to say, the processor 10 can be used to process the eye information to determine whether the pupils of the current user are in an open state; in When the pupils of the current user are in the opened state, the time is accumulated to obtain the opening duration; when the opening duration is greater than the predetermined duration, it is determined that the eyes of the current user are in a fatigued state.

Specifically, in step 0185, it can be determined by whether the pupil area is 0, and when the pupil area is not 0, it is considered to be in an open state. The time in the open state is accumulated to obtain the open duration, and when the open duration is greater than the predetermined duration, the processor 10 determines that the eyes of the current user are in a fatigued state.

In this way, the determination of the eye fatigue state is increased, and the user is determined to be in the fatigue state when the user uses the electronic device for too long, so that the electronic device is more healthy and humanized.

It can be understood that, in an implementation manner, the opening duration will not be accumulated by different users, that is, when the processor 10 processes the eye information, if it is determined that the current user has changed, it will not be accumulated in the opening time of the previous user. time, but re-accumulate the opening time of the current user.

In this way, when different users use the same device, the opening duration is prevented from accumulating together, resulting in an error prompt.

In the control method of the embodiment of the present application, the electronic device 100 includes a head-mounted device 40 , the imaging device 20 includes an infrared light source 21 and an infrared camera 22 , the infrared light source 21 is used for projecting infrared light to the eyes of the current user, and the infrared camera 22 is used for Get an image.

The electronic device 100 includes a head-mounted device, and the head-mounted device can fix structures such as the display screen 30 and the imaging device 20 in front of a person's eyes. The infrared light source 21 is installed at a position below the electronic device 100 corresponding to the human eye, the infrared light source 21 projects infrared light to the eyes of the current user, and the infrared camera 22 obtains images of the eyeball and pupil.

Specifically, the infrared light source 21 projects infrared light to the eyes of the user. If the user closes his eyes, the infrared light is projected on the eyelid and partially reflected. After the infrared camera 22 receives the eye information and is processed by the processor 10, it is considered that the pupil area of the user at this time is 0. If the user opens his eyes and the infrared light is projected on the user's eyeball, the processor 10 processes the eye information after the infrared camera 22 receives the eye information, determines the edge information of the pupil, determines the pupil center information according to the pupil edge information, and performs Pupil area calculation, blink frequency recording and other functions.

In this way, the functions of collecting eye information by the electronic device 100 and displaying the content of the display screen 30 can be realized, and the portability of the electronic device 100 is also improved.

It should be pointed out that, in the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be interpreted in a broad sense, for example, it may be a fixed connection, It can also be a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication between the two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

In the description of this specification, reference is made to the terms "some embodiments," "one embodiment," "some embodiments," "exemplary embodiments," "examples," "specific examples," or "some examples," etc. The description means that a particular feature, structure, material, or characteristic described in connection with the described embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limitations to the present application. Variations, modifications, substitutions, and alterations are made to the embodiments, and the scope of the present application is defined by the claims and their equivalents.

Claims (11)

1. A control method, characterized in that the control method is used in electronic equipment, the electronic equipment comprises a display screen and an imaging device, and the control method comprises: controlling the imaging device to acquire images to obtain eye information of the current user; Processing the eye information to determine whether the pupil area of the current user exceeds a preset pupil range, the minimum value of the preset pupil range is the first preset value, and the maximum value of the preset pupil range is the second preset value; After the pupil area is smaller than the first preset value and lasts for a first preset duration, controlling the display screen to reduce the display brightness; After the pupil area is greater than the second preset value and lasts for a second preset time period, the display screen is controlled to increase the display brightness. 2. The control method according to claim 1, wherein the control method further comprises: processing the eye information to determine whether the current user has been registered; When the current user is not registered, control the display screen to display a preset screen, determine the preset pupil range according to the pupil change of the current user, and perform registration; When the current user is registered, the preset pupil range is determined. 3. The control method according to claim 2, wherein when the current user is not registered, the display screen is controlled to display a preset picture, and the preset pupil range is determined according to the pupil change of the current user and is performed. Registration, including: When the current user is not registered, control the display screen to display a plurality of the preset images respectively, determine the preset pupil range and each preset change range according to the pupil changes of the current user under each preset image, and perform registration , each of the preset variation ranges corresponds to an adjustment amount; After the pupil area is smaller than the first preset value and lasts for a first preset time period, controlling the display screen to lower the display brightness includes: After the pupil area is smaller than the first preset value and is within one of the preset variation ranges and continues for the first preset time period, reducing the display brightness according to the corresponding adjustment amount; The controlling the display screen to increase the display brightness after the pupil area is greater than the second preset value for a second preset duration, including: After the pupil area is greater than the second preset value and is within one of the preset variation ranges and continues for the second preset time period, the display brightness is increased according to the corresponding adjustment amount. 4. The control method according to claim 1, wherein the processing of the eye information to determine whether the pupil area of the current user exceeds a preset pupil range comprises: processing the eye information to determine pupil edge information; Determine center information of the pupil according to the edge information; determining the pupil area according to the edge information and the center information; It is judged whether the pupil area exceeds the preset pupil range. 5. The control method according to claim 1, wherein the control method comprises: After the display screen is turned down or up and the display brightness is turned up and a preset adaptation time period elapses, the step of controlling the imaging device to acquire an image to obtain the eye information of the current user is re-entered. 6. The control method according to claim 1, wherein the control method further comprises: processing the eye information to determine whether the eyes of the current user are in a fatigued state; When the eyes of the current user are in a tired state, a prompt message is issued. 7. The control method according to claim 6, wherein the processing of the eye information to determine whether the eyes of the current user are in a fatigued state comprises: processing the eye information to determine the changing law of the pupil area of the current user; When the change rule is a preset rule, it is determined that the eyes of the current user are in a fatigued state. 8. The control method according to claim 6, wherein the processing of the eye information to determine whether the eyes of the current user are in a fatigued state comprises: processing the eye information to determine the blink frequency of the current user; When the blinking frequency is greater than the preset frequency, it is determined that the eyes of the current user are in a fatigued state. 9 . The control method according to claim 6 , wherein the processing of the eye information to determine whether the eyes of the current user are in a fatigued state comprises: 10 . processing the eye information to determine whether the pupil of the current user is in an open state; Accumulate the time when the pupil of the current user is in the open state to obtain the opening duration; When the opening duration is greater than a predetermined duration, it is determined that the eyes of the current user are in a fatigued state. 10. The control method according to any one of claims 1 to 9, wherein the electronic device comprises a head-mounted device, the imaging device comprises an infrared light source and an infrared camera, and the infrared light source is used to provide the current user with information. The eyes project infrared light, and the infrared camera is used to acquire the image. 11. An electronic device, characterized in that the electronic device comprises a display screen, an imaging device, and a processor, and the processor is used for: controlling the imaging device to acquire images to obtain eye information of the current user; Processing the eye information to determine whether the pupil area of the current user exceeds a preset pupil range, the minimum value of the preset pupil range is the first preset value, and the maximum value of the preset pupil range is the second preset value; After the pupil area is smaller than the first preset value and lasts for a first preset duration, controlling the display screen to reduce the display brightness; After the pupil area is greater than the second preset value and lasts for a second preset time period, the display screen is controlled to increase the display brightness.

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