TWI784463B - Electronic apparatus and smart lighting method thereof - Google Patents

Abstract

An electronic apparatus and a smart lighting method thereof are provided. The smart lighting method is adapted to the electronic apparatus including a display and an image capturing device and includes the following steps. A detection distance between a user and the display is detected. Ambient brightness of a space where the user stays is sensed. A head posture of the user is detected. During a period of executing a video application program, illuminating brightness and illuminating way of an illumination device are controlled according to the detection distance, the ambient brightness and the head posture. The illumination device dispose beside to the display is configured to illuminate the user’s face.

Description

Electronic device and its intelligent lighting method

The present invention relates to an electronic device, and in particular to an electronic device and a smart light supplement method thereof.

With the advancement of technology, modern people often need to operate electronic devices such as portable electronic devices for work or entertainment. However, regardless of the main functions of various types of portable electronic devices, most of them provide a camera function for taking photos and video clips, and thus are often used as digital cameras/video cameras. In addition, with the advancement of network communication technology, users can use the photography function of portable electronic devices to send their own images to others in real time. For example, with the rise of the demand for remote work, users can conduct remote video conferences with other people in different locations through video conference software. During the video conference, the conference participants can choose to provide their own selfie images to the other party. A good selfie image can not only improve the quality of remote meetings, but also leave a good impression on others. Therefore, how to provide good-quality selfie images for others to watch is a problem that users care about.

In view of this, the present invention proposes an electronic device and its intelligent supplementary lighting method, which can adjust the lighting brightness and lighting mode of the lighting equipment in real time according to the user's operating environment and operating status, thereby improving the picture quality of the video application screen.

An embodiment of the present invention provides a smart supplementary light method, which is suitable for electronic devices including a display and an image capture device. The method includes the following steps. Detect the detection distance between the user and the display. Sensing the ambient brightness of the user's environment. Detects the user's head posture. During the execution of the video application program by using the image capture device, the lighting brightness and lighting mode of the lighting equipment are controlled according to the detection distance, ambient brightness and head posture. Here, the lighting device installed beside the display is used to illuminate the user's face.

An embodiment of the present invention provides an electronic device, which includes a display, a lighting device, an image capture device, a storage device, and a processor. The lighting equipment is arranged next to the monitor. The storage device stores a plurality of instructions. The processor is coupled to the display, the lighting equipment, the image capture device and the storage device. The processor executes the instructions in the storage device to perform the following steps. Detect the detection distance between the user and the display. Sensing the ambient brightness of the user's environment. Detects the user's head posture. During the execution of the video application program by using the image capture device, the lighting brightness and lighting mode of the lighting equipment are controlled according to the detection distance, ambient brightness and head posture. Here, the lighting device installed beside the display is used to illuminate the user's face.

Based on the above, during the execution of the video application, the embodiment of the present invention can actively detect the user's situation, and automatically adjust the lighting effect of the lighting device. In this way, the quality of the user's face selfie image can be improved, so as to enhance the user experience.

Parts of the embodiments of the present invention will be described in detail with reference to the accompanying drawings. For the referenced reference symbols in the following description, when the same reference symbols appear in different drawings, they will be regarded as the same or similar components. These embodiments are only a part of the present invention, and do not reveal all possible implementation modes of the present invention. Rather, these embodiments are merely examples of devices and methods within the scope of the present invention.

FIG. 1 is a block diagram of an electronic device according to an embodiment of the invention. Referring to FIG. 1 , the electronic device 10 may include a display 110 , a lighting device 120 , an image capturing device 130 , a storage device 140 , and a processor 150 . The processor 150 is coupled to the display 110 , the lighting device 120 , the image capture device 130 and the storage device 140 . The electronic device 10 can be a single integrated device or a separate device. Specifically, in one embodiment, the display 110, lighting equipment 120, image capture device 130, storage device 140, and processor 150 in the electronic device 10 can be implemented as an all-in-one (AIO) Electronic devices such as laptops or tablets, etc. Alternatively, in one embodiment, the lighting device 120 or the image capturing device 130 is externally connected to an electronic device including the display 110 , the storage device 140 , and the processor 150 .

The display 110 is, for example, a liquid crystal display (Liquid Crystal Display, LCD), a light-emitting diode (Light-Emitting Diode, LED) display, a field emission display (Field Emission Display, FED), an organic light-emitting diode (Organic Light-Emitting Diode , OLED) or other types of displays, the present invention is not limited thereto.

The lighting device 120 is, for example, an LED lamp, but the present invention is not limited thereto. The lighting device 120 is disposed beside the display 110 . When the user watches the display 110 and operates the electronic device 10 , the light provided by the lighting device 120 can be used to illuminate the user's face. In one embodiment, the lighting device 120 can be disposed adjacent to any side or multiple sides of the display 110 . In addition, in one embodiment, the lighting device 120 may include a plurality of light-emitting elements, and the brightness of these light-emitting elements can be controlled independently. In one embodiment, the lighting device 120 may include at least one first light emitting element located at a first position and at least one second light emitting element located at a second position. The first position and the second position are, for example, the bottom, the left, the right or the top of the display 110 respectively. For example, the lighting device 120 may include a plurality of LED light bars respectively disposed around the display 110, and the LED light bars include a plurality of independently controllable LED light emitting elements.

The image capturing device 130 may include a lens, a photosensitive element, an aperture, and the like. The lens is, for example, a standard lens, a wide-angle lens, a zoom lens, and the like. The photosensitive element is, for example, a Charge Coupled Device (CCD), a Complementary Metal-Oxide Semiconductor (CMOS) element or other elements, and the lens, the photosensitive element or the combination thereof are not limited herein.

The storage device 140 is used to store data and data such as instructions and program codes (such as operating systems, applications, and drivers) accessed by the processor 150. It can be, for example, any type of fixed or removable random access memory Random access memory (RAM), read-only memory (ROM), flash memory (flash memory), hard disk or a combination thereof.

The processor 150 is coupled to the storage device 140, such as a central processing unit (central processing unit, CPU), an application processor (application processor, AP), or other programmable general purpose or special purpose microprocessor (microprocessor). ), digital signal processor (digital signal processor, DSP), image signal processor (image signal processor, ISP), graphics processing unit (graphics processing unit, GPU) or other similar devices, integrated circuits and combinations thereof. The processor 130 can access and execute the instructions, program codes and software modules recorded in the storage device 140 to realize the smart supplementary light method in the embodiment of the present invention.

However, in addition to the display 110, lighting equipment 120, image capture device 130, storage device 140, and processor 150, the electronic device 10 may also include other components not shown in FIG. 1, such as speakers, microphones, and communication modules. etc., the present invention is not limited thereto.

FIG. 2 is a flow chart of a smart lighting method according to an embodiment of the present invention. Please refer to FIG. 1 and FIG. 2 , the method of this embodiment is applicable to the electronic device 10 in the above-mentioned embodiment, and the detailed steps of this embodiment will be described below with various components in the electronic device 10 .

In step S201 , the processor 150 detects a detection distance between the user and the display 110 . The processor 150 can use various ranging techniques to detect the detection distance between the user and the display 110 . In one embodiment, the image capturing device 130 can capture a facial image towards the user, and the processor 150 can detect the distance between the user and the display 110 according to the size of the user's face in the facial image. distance.

In step S202, the processor 150 senses an ambient brightness of the user's environment. In one implementation, the processor 150 can detect the ambient brightness of the user's environment through a brightness sensor (not shown) disposed on the electronic device 10 . In one embodiment, the processor 150 can detect ambient brightness according to light source-related parameters such as the exposure value provided by the image capture device 130 .

In step S203, the processor 150 detects the user's head posture. In one embodiment, the image capture device 130 can capture images towards the user. The processor 150 can extract complex facial features from the image, such as Haar-like features, Histogram of Oriented Gradient (HOG) features, etc., to detect the face from the captured image image block. Next, the processor 150 may use machine learning, deep learning, or other suitable algorithms to detect multiple faces from the face block to mark the contours of the face, the shape of the facial features, and the position of the facial features. Feature points (facial landmarks). Next, the processor 150 performs coordinate system transformation according to the two-dimensional coordinates of these facial feature points to obtain three-dimensional coordinates under the three-dimensional coordinate system. In this way, the processor 150 can detect the user's head posture according to the three-dimensional coordinates of these facial feature points.

In step S204 , during the execution of the video application by the image capture device 130 , the processor 150 controls the lighting brightness and lighting mode of the lighting device 120 according to the detection distance, ambient brightness and head posture. Here, the lighting device 120 disposed beside the display 110 is used to illuminate the user's face. Specifically, during the execution of the video application by the image capture device 130, the image capture device 130 continues to capture images towards the user, and transmits the captured user's self-portrait face image to others via the network. watch. For example, the video application program may include a remote conference program, a live broadcast software program, or a communication software program, and so on.

For example, FIG. 3 is a schematic diagram of an electronic device according to an embodiment of the present invention. Referring to FIG. 3 , when the electronic device 10 executes a video application, the image capturing device 130 disposed above the display 110 captures an image towards the user. However, the present invention does not limit the installation position of the image capture device 130 , which may be determined by actual application requirements. The selfie image Img_f captured by the image capture device 130 can be provided to others for viewing via the network. In this embodiment example, the lighting device 120 is disposed on the bottom and the left and right sides of the display 110 . The lighting device 120 includes light emitting elements B1 - B3 located on the lower side of the display 110 , light emitting elements L1 - L5 located on the left side of the display 110 , and light emitting elements R1 - R5 located on the right side of the display 110 . The luminance of the light emitting elements B1-B3, the light-emitting elements L1-L5, and the light-emitting elements R1-R5 can be independently controlled. By controlling the brightness of the light emitting elements B1 - B3 , L1 - L5 , and R1 - R5 , the processor 150 can control the lighting brightness and lighting mode of the lighting device 120 . In one embodiment, the processor 150 can control the light-emitting elements at different positions to have different light-emitting luminances, so that the lighting device 120 can provide different supplementary light intensities to multiple parts of the user's face in different lighting methods.

In one embodiment, the processor 150 can control the lighting brightness and lighting mode of the lighting device 120 by looking up a table according to the detection distance, ambient brightness and head posture. In one embodiment, the processor 150 can control the lighting brightness of the lighting device 120 by comparing the detection distance with the preset distance. In one embodiment, the processor 150 can control the lighting brightness of the lighting device 120 by comparing the ambient brightness with the preset ambient brightness. In one embodiment, the processor 150 can control the lighting mode of the lighting device 120 according to the three-axis movement angle of the user's head. It can be seen that the processor 150 can adjust the lighting brightness and lighting method of the lighting device 120 in real time according to the environmental factors of the user's environment, operation method and head posture, so as to provide a suitable supplementary light method. As a result, image quality for video applications can be greatly improved, and users in images can look good.

Examples of controlling the lighting mode and lighting brightness of the lighting device 120 will be listed below. FIG. 4A and FIG. 4B are flow charts of a smart lighting method according to an embodiment of the present invention. Please refer to FIG. 1 , FIG. 4A and FIG. 4B , the method of this embodiment is applicable to the electronic device 10 in the above embodiment, and the detailed steps of this embodiment will be described below with various components in the electronic device 10 . In addition, in order to clearly illustrate the present invention, FIG. 5 is a schematic diagram of a situation of a smart supplementary light method according to an embodiment of the present invention.

In step S401 , the processor 150 sets a preset distance, a preset ambient brightness, and a preset reference brightness of the lighting device 120 according to user operations. In this embodiment, the electronic device 10 can execute an initialization program, and the user performs user operations to set the default distance, the default ambient brightness, and the default reference brightness of the lighting equipment. In more detail, the processor 150 may provide a setting interface for the user to set the default reference brightness of the lighting device 120 under the condition that the user is at a preset distance from the display 110 and the ambient light has a preset ambient brightness. The user can manually control the brightness of each light-emitting element in the lighting device 120 to set a preset reference brightness of the lighting device 120 . The preset distance, the preset ambient brightness and the preset reference brightness of the lighting device 120 can be recorded in the storage device 140 .

In step S402, the processor 150 starts to execute the video application. Each light emitting element of the lighting device 120 is initially preset to have a preset reference brightness. In step S403, the processor 150 detects a detection distance between the user and the display. In step S404, the processor 150 senses an ambient brightness of the user's environment.

In step S405, the processor 150 compares the detection distance with the preset distance. In step S406 , in response to the detection distance being greater than the preset distance, the processor 150 increases the lighting brightness of the lighting device 120 . In the example of FIG. 5 , the processor 150 can increase the luminance of each light-emitting element in the lighting device 120 , that is, increase the luminance of the light-emitting elements B1 - B3 , L1 - L5 , and R1 - R5 . In step S407, the processor 150 lowers the lighting brightness of the lighting device 120 in response to the detection distance being less than the preset distance. In the example of FIG. 5 , the processor 150 can reduce the luminance of each light-emitting element in the lighting device 120 , that is, reduce the luminance of the light-emitting elements B1 - B3 , L1 - L5 , and R1 - R5 . In other words, in comparison, when the user is farther away from the display 110 , the lighting device 120 has a higher lighting brightness. When the user is closer to the display 110 , the lighting device 120 has a lower lighting brightness.

In step S408, the processor 150 compares the ambient brightness with the preset ambient brightness. In step S409 , the processor 150 lowers the lighting brightness of the lighting device 120 in response to the ambient brightness being greater than the preset ambient brightness. In the example of FIG. 5 , the processor 150 can reduce the luminance of each light-emitting element in the lighting device 120 , that is, reduce the luminance of the light-emitting elements B1 - B3 , L1 - L5 , and R1 - R5 . In step S410 , the processor 150 increases the lighting brightness of the lighting device 120 in response to the fact that the ambient brightness is lower than the preset ambient brightness. In the example of FIG. 5 , the processor 150 can increase the luminance of each light-emitting element in the lighting device 120 , that is, increase the luminance of the light-emitting elements B1 - B3 , L1 - L5 , and R1 - R5 . In other words, when the user is located in an environment with sufficient light sources, the lighting device 120 has a lower lighting brightness. When the user is located in an environment with insufficient light sources, the lighting device 120 has a higher lighting brightness.

In step S411 , the processor 150 analyzes the three-axis movement angle of the head posture according to the facial image. During the execution of the video application by the image capture device 130 , the processor 150 uses the image capture device 130 to capture a facial image from the user, so as to analyze the three-axis movement angle of the head posture according to the facial image. The three-axis motion angle of the head posture may include a head pitch angle (pitch), a head yaw angle (yaw), and a head roll angle (roll). The processor 150 can estimate the three-axis motion angle of the head pose according to the facial feature points in the image.

Therefore, the processor 150 can increase or decrease the brightness of some light-emitting elements in the lighting device 120 according to the three-axis motion angle of the head posture. In one embodiment, the processor 150 can control the luminance of one light-emitting element (ie, the first light-emitting element) in the lighting device 120 to be different from the luminance of another light-emitting element (ie, the second light-emitting element). Therefore, according to the amount of rotation of the user's head on the three axes, the processor 150 can control different light-emitting elements to have different light-emitting luminances, so that the lighting device 120 can supplement light toward the face in a corresponding lighting mode.

In step S412, the processor 150 determines whether the head pitch angle is within a first preset range. The first preset range can be set according to actual application, and the present invention is not limited thereto. In response to the head pitch angle of the head posture being within the first preset range, the processor 150 does not adjust the luminance of the light emitting element (ie, the first light emitting element) located on the lower side of the display 110 in the lighting device 120 . In step S413 , the processor 150 adjusts the luminance of the light-emitting element (ie, the first light-emitting element) located on the lower side of the display 110 in the lighting device 120 in response to the fact that the head pitch angle of the head posture is not within the first preset range. In the example of FIG. 5 , the lighting device 120 may include light emitting elements B1 - B3 located on the lower side of the display 110 , and the processor 150 adjusts the light emitting brightness of the light emitting element B2 in the lighting device 120 . More specifically, when the user looks up, the processor 150 may lower the brightness of the light-emitting element B2. When the user lowers his head, the processor 150 can increase the brightness of the light emitting element B2. In this way, the five-sense area of the face can obtain more light than the peripheral area of the face, and the five-sense area of the user's face can be displayed more clearly in the image.

In step S414, the processor 150 determines whether the head yaw angle is within a second preset range. The second preset range can be set according to actual application, and the present invention is not limited thereto. In response to the head yaw angle of the head posture being within the second preset range, the processor 150 does not adjust the brightness of at least one light-emitting element (ie, the second light-emitting element) located on the left side of the display 110 and at least one light-emitting element located on the right side of the display 110 . The luminous brightness of a light-emitting element (that is, the third light-emitting element). In step S415, in response to the fact that the head yaw angle of the head posture is not within the second preset range, the processor 150 increases the brightness of at least one light-emitting element (ie, the second light-emitting element) on the left side of the display 110 in the lighting device 120 . The luminous brightness or the luminous brightness of at least one light emitting element (that is, the third light emitting element) located on the right side of the display 110 .

In the example shown in FIG. 5 , the lighting device 120 may include light-emitting elements L1-L5 located on the left side of the display 110 and light-emitting elements R1-R5 located on the right side of the display 110, and the processor 150 may adjust the lighting device 120 according to the yaw angle of the head. The luminous brightness of the light-emitting elements L1~L5 or the light-emitting elements R1~R5. More specifically, when the user's head turns right, the processor 150 can increase the brightness of the light emitting elements R1 - R5 located on the right side of the display 110 . When the user's head turns left, the processor 150 can increase the brightness of the light emitting elements L1 - L5 located on the left side of the display 110 . In this way, the five-sense area of the face can obtain more light than the peripheral area of the face, and the five-sense area of the user's face can be displayed more clearly in the image.

In step S416, the processor 150 determines whether the head roll angle of the head pose is within a third preset range. The third preset range can be set according to actual application, which is not limited by the present invention. In response to the head roll angle of the head posture being within the third preset range, the processor 150 does not adjust the luminance of at least one light-emitting element (ie, the second light-emitting element) on the left side of the display 110 and at least one light-emitting element on the right side of the display 110 . The luminous brightness of the light-emitting element (that is, the third light-emitting element). In step S417, in response to the fact that the head roll angle of the head posture is not within the third preset range, the processor 150 lowers the luminance of at least one light-emitting element (ie, the second light-emitting element) in the lighting device 120 and at least one light-emitting element. The luminous brightness of the light-emitting element (that is, the third light-emitting element).

In the example of FIG. 5 , the processor 150 can adjust the luminance of the light-emitting elements L1 , L2 , L4 , L5 and the light-emitting elements R1 , R2 , R4 , R5 in the lighting device 120 according to the head roll angle. More specifically, when the user's head tilts to the right, the processor 150 can adjust the brightness of the light-emitting elements R1 and R2 on the right side of the display 110 and the brightness of the light-emitting elements L4 and L5 on the left side of the display 110 . When the user's head tilts to the left, the processor 150 can adjust the brightness of the light-emitting elements R4 and R5 on the right side of the display 110 and the brightness of the light-emitting elements L1 and L2 on the left side of the display 110 . In this way, the five-sense area of the face can receive more light than the peripheral area of the face, and the five-sense area of the user's face can be displayed more clearly in the image. Table 1 is, for example, an example of adjusting the light-emitting elements B1-B3, the light-emitting elements L1-L5, and the light-emitting elements R1-R5 according to three-axis motion angles. Table 1 Light emitting element R1 R2 R3 R4 R5 head pitch angle up down head roll angle Lean to the left downgrade downgrade Lean to the right downgrade downgrade head yaw angle turn left turn right raise raise raise raise raise Light emitting element L1 L2 L3 L4 L5 B1 B2 B3 head pitch angle up downgrade down raise head roll angle Lean to the left downgrade downgrade downgrade Lean to the right downgrade downgrade downgrade head yaw angle turn left raise raise raise raise raise raise turn right raise

In step S418, the processor 150 determines whether the execution of the video application is finished. If not, go back to step S403 to continuously adjust the lighting mode and lighting brightness of the lighting device 120 according to the user's operating environment and operating mode during the execution of the video application.

To sum up, in the embodiment of the present invention, during the use of the video application, the lighting device installed next to the display can be based on the actual distance between the user and the electronic device, the real-time ambient brightness and the user's head posture To adjust the lighting brightness and lighting mode of the lighting equipment in real time, so as to supplement and adjust the light source irradiated on the user's face in real time. In this way, the facial image used in the video application program can have good image quality, so that other viewers can see the user with a good complexion through the facial image of the video application program.

Although the present invention has been disclosed above with the embodiments, it is not intended to limit the present invention. Anyone with ordinary knowledge in the technical field may make some changes and modifications without departing from the spirit and scope of the present invention. The scope of protection of the present invention should be defined by the scope of the appended patent application.

10: Electronic device 110: Display 120: lighting equipment 130: image capture device 140: storage device 150: Processor Img_f: selfie image B1～B3, L1～L5, R1～R5: Light emitting elements S201～S204, S401～S418: steps

FIG. 1 is a block diagram of an electronic device according to an embodiment of the invention. FIG. 2 is a flow chart of a smart lighting method according to an embodiment of the present invention. FIG. 3 is a schematic diagram of an electronic device according to an embodiment of the invention. FIG. 4A and FIG. 4B are flow charts of a smart lighting method according to an embodiment of the present invention. FIG. 5 is a schematic diagram of a situation of a smart supplementary light method according to an embodiment of the present invention.

S201～S204: steps

Claims (14)

A smart light supplement method is suitable for an electronic device including a display and an image capture device, the method includes: detecting a detection distance between a user and the display; sensing the environment where the user is located Ambient brightness; detecting the user's head posture; and controlling a three-axis movement angle according to the detection distance, the ambient brightness and the head posture during the execution of the video application program by the image capture device The lighting brightness and lighting mode of the lighting equipment, wherein the lighting equipment installed next to the display is used to illuminate the user's face. The intelligent supplementary light method as described in claim 1, wherein the step of controlling the lighting brightness and the lighting mode of the lighting device according to the detection distance, the ambient brightness and the head posture includes: responding when the detection distance is greater than increasing the lighting brightness of the lighting device for a preset distance; and lowering the lighting brightness of the lighting device in response to the detection distance being less than the preset distance. The intelligent light supplement method as described in claim 1, wherein the step of controlling the lighting brightness and the lighting mode of the lighting device according to the detection distance, the ambient brightness and the head posture includes: responding when the ambient brightness is greater than one Preset the ambient brightness to reduce the lighting brightness of the lighting equipment; and In response to the ambient brightness being lower than the preset ambient brightness, the lighting brightness of the lighting device is increased. The intelligent supplementary light method as described in Claim 1, wherein the lighting device includes at least one first light-emitting element located at a first position and at least one second light-emitting element located at a second position, and according to the detection distance and the environment Brightness and the head posture The step of controlling the lighting brightness and the lighting mode of the lighting device includes: controlling the luminous brightness of the at least one first light-emitting element in the lighting device according to the three-axis motion angle of the head posture different from the luminous brightness of the at least one second luminous element. The intelligent supplementary light method according to claim 4, wherein the lighting device includes the at least one first light-emitting element located on the lower side of the display, the at least one second light-emitting element located on the left side of the display, and at least one second light-emitting element located on the right side of the display a third light-emitting element, and according to the three-axis movement angle of the head posture, the step of controlling the light-emitting brightness of the at least one first light-emitting element in the lighting device to be different from the light-emitting brightness of the at least one second light-emitting element The method includes: adjusting the luminance of the at least one first light-emitting element located on the lower side of the display in the lighting device in response to the fact that the head pitch angle of the head posture is not within a first preset range. The intelligent supplementary light method as described in claim 5, wherein according to the three-axis motion angle of the head posture, the light emitting brightness of the at least one first light-emitting element in the lighting device is controlled to be different from that of the at least one second light-emitting element The steps of the luminous brightness of the component include: In response to the head yaw angle of the head posture not falling within the second preset range, increasing the luminance of the at least one second light-emitting element or the luminance of the at least one third light-emitting element in the lighting device; And in response to the fact that the head roll angle of the head posture is not within the third preset range, the light emitting brightness of the at least one second light emitting element and the light emitting brightness of the at least one third light emitting element in the lighting device are lowered. The intelligent light supplement method as described in claim 4, wherein the image capture device is located on the upper side of the display, and the step of detecting the head posture of the user includes: executing the video application using the image capture device During the procedure, the image capture device is used to capture a facial image of the user; and the three-axis motion angle of the head posture is analyzed according to the facial image. An electronic device, comprising: a display; a lighting device arranged beside the display; an image capture device; a storage device storing a plurality of instructions; a processor coupled to the display, the lighting device, and the image The capture device, and the storage device, execute the instructions in the storage device to; detect a detection distance between the user and the display; sense an ambient brightness of the user's environment; detect the user the person's head posture; and During the execution of the video application program by using the image capture device, the lighting brightness and lighting mode of the lighting device are controlled according to the detection distance, the ambient brightness and the three-axis motion angle of the head posture, which is arranged next to the display The lighting device is used to illuminate the user's face. The electronic device as claimed in claim 8, wherein in response to the detection distance being greater than a preset distance, the processor increases the lighting brightness of the lighting device; and in response to the detection distance being smaller than the preset distance, the The processor lowers the lighting brightness of the lighting device. The electronic device as claimed in claim 8, wherein in response to the ambient brightness being greater than a preset ambient brightness, the processor lowers the lighting brightness of the lighting device; and in response to the ambient brightness being lower than the preset ambient brightness, the The processor increases the lighting brightness of the lighting device. The electronic device according to claim 8, wherein the lighting device includes at least one first light-emitting element located at a first position and at least one second light-emitting element located at a second position, and the processor is based on the three positions of the head posture The shaft movement angle is used to control the luminance of the at least one first light-emitting element in the lighting device to be different from the luminance of the at least one second light-emitting element. The electronic device as claimed in claim 11, wherein the lighting device comprises the at least one first light-emitting element located on the lower side of the display, the at least one second light-emitting element located on the left side of the display, and at least one first light-emitting element located on the right side of the display Three light-emitting elements, Wherein the head pitch angle reflected by the head posture is not within a first preset range, the processor adjusts the luminance of the at least one first light-emitting element located on the lower side of the display in the lighting device. The electronic device as claimed in claim 12, wherein the processor adjusts up the at least one second light-emitting element in the lighting device when the head yaw angle in response to the head posture is not within the second preset range The luminous brightness or the luminous brightness of the at least one third light-emitting element; and the processor lowers the at least one second lighting device in the lighting device when the head roll angle in response to the head posture is not within the third preset range. The light emitting brightness of the light emitting element and the light emitting brightness of the at least one third light emitting element. The electronic device as described in claim 11, wherein the image capture device is located on the upper side of the display, and during the execution of the video application program using the image capture device, the processor uses the image capture device to move toward the user The latter captures a facial image, and analyzes the three-axis motion angle of the head posture according to the facial image.

Images