CN111968603B - Display device, electronic apparatus, and control method of electronic apparatus - Google Patents

Abstract

Embodiments of the present application provide a display device, an electronic device, and a control method for the electronic device. The display device includes a display screen; a dimming component is disposed on one side of the display screen; and a first light sensor is disposed on the dimming component away from the display screen. and a second light sensor, disposed on the side of the dimming assembly away from the display screen; wherein, the dimming assembly is used to detect the ambient light passing through the display screen and the light emitted by the display screen. Filtering, so that the first light sensor receives the light emitted by the display screen, and the second light sensor receives the light emitted by the display screen and ambient light. Since the first light sensor can only receive the light emitted by the display screen, and the second light sensor can receive the light emitted by the display screen and the ambient light, the difference between the light received by the first light sensor and the second light sensor can be calculated by calculating The ambient light intensity is not only simple to calculate, but also reduces the amount of computation on the software side.

Description

Display device, electronic device, and control method of electronic device

technical field

The present application relates to the field of electronic technologies, and in particular, to a display device, an electronic device, and a control method for the electronic device.

Background technique

With the development of electronic technology, the screen-to-body ratio of electronic devices such as smart phones is getting larger and larger, so that the area on the display screen of the electronic device for arranging electronic devices such as sensors is getting smaller and smaller. Therefore, on more and more electronic devices, light sensors are arranged below the display screen to detect ambient light through the light sensors.

In the process of electronic equipment detecting ambient light, the light emitted by the screen will affect the detection result of the light sensor. At present, the related technology uses software calculation to calibrate the influence of screen light leakage, which will undoubtedly increase the calculation amount and computational burden on the software side.

SUMMARY OF THE INVENTION

Embodiments of the present application provide a display device, an electronic device, and a control method for the electronic device, which can reduce the amount of computation on the software side.

Embodiments of the present application provide a display device, including:

display screen;

a dimming component, arranged on one side of the display screen;

a first light sensor, disposed on the side of the dimming assembly away from the display screen; and

The second light sensor is disposed on the side of the dimming assembly away from the display screen; wherein,

The dimming component is used for filtering the ambient light passing through the display screen and the light emitted by the display screen, so that the first light sensor receives the light emitted by the display screen, and the second light sensor receives the light emitted by the display screen. The light sensor receives the light emitted by the display screen and the ambient light.

The embodiment of the present application also provides an electronic device, including:

display screen;

a dimming component, arranged on one side of the display screen;

a first light sensor, disposed on the side of the dimming assembly away from the display screen; and

The second light sensor is disposed on the side of the dimming assembly away from the display screen, wherein,

The dimming component is used for filtering the ambient light passing through the display screen and the light emitted by the display screen, so that the first light sensor receives the light emitted by the display screen, and the second light sensor receives the light emitted by the display screen. The light sensor receives the light emitted by the display screen and the ambient light;

a processor, electrically connected to the first light sensor and the second light sensor, and the processor is used for:

The ambient light intensity is calculated according to the first light intensity received by the first light sensor and the second light intensity received by the second light sensor, or the chromaticity of the first light received by the first light sensor and The second light chromaticity received by the second light sensor calculates the ambient light chromaticity.

Embodiments of the present application also provide a control method for an electronic device, including:

Obtaining a first light intensity through a first light sensor, where the first light intensity includes the intensity of light emitted by the display screen;

Obtaining a second light intensity through a second light sensor, where the second light intensity includes the intensity of light emitted by the display screen and the intensity of ambient light passing through the display screen;

calculating ambient light intensity according to the first light intensity and the second light intensity;

The electronic device is controlled according to the ambient light intensity.

In the display device provided by the embodiment of the present application, by setting the dimming component, the dimming component can filter the ambient light passing through the display screen and the light emitted by the display screen, so that the first light sensor can receive the display The second light sensor receives the light emitted by the display screen and the ambient light passing through the display screen. Since the first light sensor can only receive the light emitted by the display screen and cannot receive ambient light, the second light sensor can either It can receive the light emitted by the display screen and also receive ambient light. Therefore, the ambient light intensity can be calculated through the difference between the light received by the first light sensor and the second light sensor, which is not only simple to calculate, but also reduces the calculation on the software side. quantity.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the accompanying drawings that are used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative effort.

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

FIG. 2 is a first schematic diagram of a display device provided by an embodiment of the present application.

FIG. 3 is a second schematic diagram of a display device provided by an embodiment of the present application.

FIG. 4 is a third schematic diagram of a display device provided by an embodiment of the present application.

FIG. 5 is a fourth schematic diagram of a display device provided by an embodiment of the present application.

FIG. 6 is a fifth schematic diagram of a display device provided by an embodiment of the present application.

FIG. 7 is a sixth schematic diagram of a display device provided by an embodiment of the present application.

FIG. 8 is a seventh schematic diagram of a display device provided by an embodiment of the present application.

FIG. 9 is a schematic structural diagram of a second polarizing element in a display device provided by an embodiment of the present application.

FIG. 10 is a schematic structural diagram of a third polarizing element in a display device provided by an embodiment of the present application.

FIG. 11 is a cross-sectional view along the P-P direction in FIG. 9 .

FIG. 12 is an eighth schematic diagram of a display device provided by an embodiment of the present application.

FIG. 13 is a first schematic flowchart of a control method for an electronic device provided by an embodiment of the present application.

FIG. 14 is a second schematic flowchart of a control method for an electronic device provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

Embodiments of the present application provide an electronic device. The electronic device may be a smart phone, a tablet computer, etc., or a game device, an AR (Augmented Reality, augmented reality) device, a car device, a data storage device, an audio playback device, a video playback device, a notebook computer, and a desktop computing device. equipment, etc.

Referring to FIG. 1 , FIG. 1 is a schematic structural diagram of an electronic device provided by an embodiment of the present application. The electronic device 100 includes a casing 10 , a display device 20 and a processor 30 .

The casing 10 is used to form the outer contour and the overall frame of the electronic device 100 . It can be understood that the housing 10 can be used to install various functional modules of the electronic device 100 , such as a camera, a circuit board, a battery, and the like.

The display device 20 is mounted on the casing 10 . The display device 20 is used for displaying information, for example, displaying information such as images and texts. In addition, the display device 20 may further include a light sensor, and the light sensor is used to detect ambient light, so that the electronic device 100 can display information to the display device 20 according to the information detected by the light sensor. Brightness, display color, etc. are automatically controlled.

The processor 30 is installed inside the casing 10 . The processor 30 is electrically connected to the display device 20 , so that the processor 30 can control the display of the display device 20 . In addition, the processor 30 may also be configured to process the information detected by the light sensor in the display device 20, for example, perform analysis and calculation on the information detected by the light sensor.

Referring to FIG. 2 , FIG. 2 is a first schematic diagram of a display device provided by an embodiment of the present application. The display device 20 includes a display screen 21 , a dimming component 22 , a first light sensor 23 and a second light sensor 24 .

In the description of this application, it should be understood that terms such as "first", "second" and the like are only used to distinguish similar objects, and cannot be interpreted as indicating or implying relative importance or implying the indicated technology number of features.

It should be noted that, in the embodiment of the present application, the first light sensor 23 and the second light sensor 24 are only used to distinguish two light sensors. In other embodiments, the first light sensor 23 may be understood as a second light sensor, and the corresponding second light sensor 24 may be understood as a first light sensor.

The display screen 21 is used to display information such as images and text to realize the display function of the display device 20 . It can be understood that the display screen 21 may be an organic light-emitting diode display (Organic Light-Emitting Diode, OLED).

When displaying information, the display screen 21 may generate light, such as light I ₂ . The light I ₂ generated by the display screen 21 includes polarized light directed in various directions. The light I ₂ generated by the display screen 21 can be transmitted to both sides of the display screen 21 , for example, to the side of the dimming component 22 and the side away from the dimming component 22 . Wherein, the side of the dimming assembly 22 can be understood as the inner side of the electronic device 100, and the side away from the dimming assembly 22 can be understood as the side facing the user. When the light I ₂ generated by the display screen 21 is transmitted toward the user and is perceived by the user's eyes, the user can observe the information displayed on the display screen 21 .

Furthermore, it is understood that ambient light, such as ambient light I ₁ , is present in the environment. The ambient light may include sunlight, moonlight, lights, and the like. The ambient light I ₁ can be transmitted through the display screen 21 to be transmitted to the interior of the electronic device 100 , for example, the ambient light I ₁ can be transmitted through the display screen 21 to the side where the dimming component 22 is located.

The dimming component 22 is arranged on one side of the display screen 21 , for example, the dimming component 22 is arranged on the side of the display screen 21 facing the inside of the electronic device 100 , that is, the inside is an area that the user cannot observe from the outside of the electronic device 100 . side. The dimming component 22 is used to filter the ambient light passing through the display screen 21 and the light emitted by the display screen 21 to change the receiving environment of the first light sensor 23 and the second light sensor 24 light situation. Wherein, the dimming component 22 may include an element for filtering light, such as a polarizing element, a quarter-wave plate, and the like.

The first light sensor 23 is a photoelectric sensor, and is used for converting the received light signal into a corresponding electrical signal. The first light sensor 23 is disposed on the side of the dimming assembly 22 away from the display screen 21 , and the first light sensor 23 is disposed opposite to the dimming assembly 22 . The first light sensor 23 is used for receiving the light I ₂ emitted by the display screen 21 .

It should be noted that the first light sensor 23 cannot receive the ambient light I ₁ passing through the display screen 21 .

The second light sensor 24 is also a photoelectric sensor, and is used to convert the received light signal into a corresponding electrical signal. The second light sensor 24 is disposed on the side of the dimming assembly 22 away from the display screen 21 . The second light sensor 24 is used for receiving the light I ₂ emitted by the display screen 21 and the ambient light I ₁ passing through the display screen 21 .

It can be understood that, due to the polarization effect of the dimming component 22 on the light, the dimming component 22 can change the polarization direction of the ambient light _I1 passing through the display screen 21. Therefore, the first light sensor 23 . The situation in which the second light sensor 24 receives the ambient light _I1 is different. In the embodiment of the present application, the first light sensor 23 is used for receiving the light I ₂ emitted by the display screen 21 , and the second light sensor 24 is used for receiving the light I ₂ and the transparent light emitted by the display screen 21 . ambient light I ₁ passing through the display screen 21 .

Wherein, the second light sensor 24 and the first light sensor 23 may be on the same horizontal plane, and the second light sensor 24 and the first light sensor 23 are arranged at intervals. The distance between the second light sensor 24 and the first light sensor 23 is very small, for example, the distance between the second light sensor 24 and the first light sensor 23 is d, and d may be 1-3 mm.

In the electronic device 100 provided in the embodiment of the present application, by setting the dimming component 22, the dimming component 22 can filter the ambient light passing through the display screen 21 and the light emitted by the display screen 21, so that the first A light sensor 23 receives the light emitted by the display screen 21, and the second light sensor 24 receives the light emitted by the display screen 21 and the ambient light passing through the display screen 21. Since the first light sensor 23 can only receive the light emitted by the display screen 21, Instead of receiving ambient light, the second light sensor 24 can receive both the light emitted by the display screen 21 and the ambient light. Therefore, through the difference between the light received by the first light sensor 23 and the second light sensor 24, it can be calculated The ambient light intensity is not only simple to calculate, but also can reduce the amount of computation on the software side, and can also improve the detection accuracy of ambient light.

It can be understood that please refer to FIG. 3 , which is a second schematic diagram of a display device provided by an embodiment of the present application.

The display screen 21 includes a light-emitting layer 211 and a first polarizing element 212 . The light-emitting layer 211 is located on the side of the first polarizing element 212 facing the light-adjusting component 22 , and the first polarizing element 212 is located on the side of the light-emitting layer 211 away from the light-adjusting component 22 .

The light-emitting layer 211 is used to emit light to generate light, such as light I ₂ , when the display screen 21 displays information. The light I ₂ generated by the light emitting layer 211 can be transmitted either toward the side of the dimming component 22 or toward the side away from the dimming component 22 , that is, toward the user. In some embodiments, the light emitting layer 211 may include a plurality of organic light emitting diodes (OLEDs).

In some embodiments, the first polarizing element 212 includes a polarizer. The first polarizing element 212 is disposed on the side of the display screen 21 facing the user. The area of the first polarizing element 212 may be much larger than the areas of the first light sensor 23 and the second light sensor 24 .

The first polarizing element 212 is used for polarizing light. Wherein, when the light I ₂ generated by the light-emitting layer 211 is transmitted to the first polarizing element 212 , due to the polarization effect of the first polarizing element 212 , linearly polarized light is formed. The linearly polarized light formed by I ₂ passing through the first polarizing element 212 is transmitted toward the outside of the electronic device 100 . After being perceived by the user, the user can normally observe the information displayed on the display screen 21 .

When the ambient light I1 is transmitted to the electronic device ₁₀₀ through the display screen 21 , the ambient light _I1 also forms linearly polarized light when passing through the first polarizing element 212 , and the linearly polarized light continues toward the electronic device 100 Internal transmission.

Wherein, the first polarizing element 212 includes a first polarizing axis. The first polarizing element 212 allows light with a polarization direction parallel to the first polarization axis to pass through, and prevents light with a polarization direction perpendicular to the first polarization axis from passing through. That is, in the light I ₂ and the ambient light I ₁ generated by the light-emitting layer 211 , part of the light whose polarization direction is parallel to the first polarization axis can pass through the first polarizing element 212 , while the polarization direction is the same as that of the first polarization axis. Part of the light whose first polarizing axis is vertical cannot pass through the first polarizing element 212 .

The dimming component 22 includes a second polarizing element 221 . In some embodiments, the second polarizing element 221 also includes a polarizer. The second polarizing element 221 can also polarize light. The second polarizing element 221 is disposed opposite to the first light sensor 23 .

Wherein, the second polarizing element 221 includes a second polarizing axis. It can be understood that the second polarizing element 221 allows light with a polarization direction parallel to the second polarization axis to pass through, and prevents light with a polarization direction perpendicular to the second polarization axis from passing through.

Therefore, when the light I ₂ generated by the light-emitting layer 211 is transmitted to the second polarizing element 221 , part of the light I ₂ whose polarization direction is parallel to the second polarizing axis can pass through the second polarizing element 221 , and continue to transmit to the first light sensor 23 , part of the light I ₂ whose polarization direction is perpendicular to the second polarization axis cannot pass through the second polarizing element 221 . Therefore, the first light sensor 23 can receive the light I ₂ generated by the light emitting layer 211 , that is, can receive the light I ₂ emitted by the display screen 21 .

In the embodiment of the present application, the second polarization axis is perpendicular to the first polarization axis. Therefore, it can be understood that the polarization direction of the linearly polarized light formed by the ambient light I ₁ after passing through the first polarizing element 212 is parallel to the first polarizing axis, and thus is perpendicular to the second polarizing axis. Therefore, the linearly polarized light formed by the ambient light I ₁ after passing through the first polarizing element 212 cannot pass through the second polarizing element 221 . Therefore, the first light sensor 23 cannot receive the ambient light I ₁ .

And the light I ₂ generated by the light emitting layer 211 can be directly transmitted to the second light sensor 24 , so as to be received by the second light sensor 24 . The linearly polarized light formed by the ambient light I ₁ after passing through the first polarizing element 212 can also be transmitted to the second light sensor 24 , so as to be received by the second light sensor 24 . Therefore, the second light sensor 24 can receive not only the light I ₂ emitted by the display screen 21 , but also the ambient light I ₁ .

It should be noted that, in the light I ₂ generated by the light-emitting layer 211, part of the light whose polarization direction is parallel to the second polarization axis can pass through the second polarizing element 221, and the polarization direction is the same as that of the second polarization axis. Part of the light whose axis is vertical cannot pass through the second polarizing element 221 , so the light received by the first light sensor 23 is half of the light I ₂ generated by the display screen 21 . All the light I ₂ generated by the display screen 21 can be transmitted to the second light sensor 24 . Therefore, the light I ₂ generated by the light-emitting layer 211 received by the second light sensor 24 is twice the light I ₂ generated by the light-emitting layer 211 received by the first light sensor 23 .

The processor 30 of the electronic device 100 may be electrically connected to the first light sensor 23 and the second light sensor 24 . The processor 30 may calculate the ambient light intensity and the ambient light chromaticity according to the light received by the first light sensor 23 and the second light sensor 24 .

In the embodiment of the present application, that is, when the dimming component 22 includes the second polarizing element 221 and does not include the third polarizing element 223 and the third quarter-wave plate 224 described below, the processor 30 may The following formula calculates the ambient light intensity:

P=X ₂ -2X ₁

Wherein, P is the ambient light intensity, X ₁ is the first light intensity detected by the first light sensor 23 , and X ₂ is the second light intensity detected by the second light sensor 24 .

In addition, the processor 30 may also calculate the ambient light chromaticity according to the first light chromaticity detected by the first light sensor 23 and the second light chromaticity detected by the second light sensor 24 . Among them, the ambient light chromaticity can be calculated according to the following formula:

Q=Y ₂ -2Y ₁

Wherein, Q is the ambient light chromaticity, Y ₁ is the first light chromaticity detected by the first light sensor 23 , and Y ₂ is the second light chromaticity detected by the second light sensor 24 .

In some embodiments, please refer to FIG. 4 , which is a third schematic diagram of a display device provided by an embodiment of the present application.

The display screen 21 further includes a first quarter wave plate 213 . The first quarter-wave plate 213 is disposed on the side of the first polarizer 212 facing the dimming component 22 . The first quarter-wave plate 213 can be used to change the polarization type of light and change the polarization angle of light.

The dimming assembly 22 further includes a second quarter wave plate 222 . The second quarter-wave plate 222 is disposed on the side of the second polarizing element 221 facing the display screen 21 . The second quarter-wave plate 222 is disposed opposite to the second polarizing element 221 . The second quarter-wave plate 222 can also be used to change the polarization type of light and change the polarization angle of light.

Wherein, the polarization axis of the second polarizing element 221 is perpendicular to the polarization axis of the first polarizing element 212 , that is, the second polarization axis is perpendicular to the first polarization axis. The slow axis of the second quarter wave plate 222 is perpendicular to the slow axis of the first quarter wave plate 213 .

When the ambient light I1 is transmitted to the inside of the electronic device ₁₀₀ through the display screen 21, the ambient light _I1 forms linearly polarized light when passing through the first polarizing element 212, and then the linearly polarized light transmits through the first polarizing element 212. The quarter-wave plate 213 forms circularly polarized light, and the circularly polarized light is transmitted to the dimming component 22 . Subsequently, when the circularly polarized light passes through the second quarter-wave plate 222 , linearly polarized light is formed again, and the polarization direction of the formed linearly polarized light is the same as the line formed when passing through the first polarizing element 212 . The polarization directions of polarized light are the same. Therefore, the polarization direction of the linearly polarized light formed again when the ambient light _I1 passes through the second quarter-wave plate 222 is perpendicular to the polarization axis of the second polarizing element 221, and cannot continue to pass through all The second polarizing element 221 is described. Therefore, the first light sensor 23 still cannot receive the ambient light I ₁ .

The ambient light _I1 can be transmitted to the second light sensor 24 after passing through the first polarizing element 212 and the first quarter-wave plate 213 in sequence, and the second light sensor 24 can receive Ambient light I ₁ .

It can be understood that the second polarization axis can also be parallel to the first polarization axis, the slow axis of the second quarter wave plate 222 is parallel to the slow axis of the first quarter wave plate 213, and the second quarter wave plate 222 is parallel to the slow axis of the first quarter wave plate 213. The wave plate 222 can change the polarization direction of the transmitted light by 90 degrees.

For example, when ambient light I ₁ is transmitted to the interior of the electronic device 100 through the display screen 21, the ambient light I ₁ forms linearly polarized light when it passes through the first polarizing element 212, and then the linearly polarized light transmits through the first polarizing element 212. The first quarter wave plate 213 forms circularly polarized light, and the circularly polarized light is transmitted to the dimming component 22 . Subsequently, when the circularly polarized light passes through the second quarter-wave plate 222, linearly polarized light is formed again, and the polarization direction of the formed linearly polarized light is changed by 90 degrees. At this time, the polarization direction of the formed linearly polarized light is The polarization direction of the linearly polarized light formed when passing through the first polarizing element 212 is vertical. Therefore, the polarization direction of the linearly polarized light formed again when the ambient light _I1 passes through the second quarter-wave plate 222 is perpendicular to the polarization axis of the second polarizing element 221, and cannot continue to pass through all The second polarizing element 221 is described. Therefore, the first light sensor 23 still cannot receive the ambient light I ₁ .

The ambient light _I1 can be transmitted to the second light sensor 24 after passing through the first polarizing element 212 and the first quarter-wave plate 213 in sequence, and the second light sensor 24 can receive the ambient light I ₁ .

The light I ₂ generated by the light-emitting layer 211 is transmitted to the first light sensor 23 after passing through the second quarter-wave plate 222 and the second polarizing element 221 in sequence. Wherein, the light _I2 forms a collection light of linearly polarized light, circularly polarized light, and elliptically polarized light when passing through the second quarter-wave plate 222, and half of the light rays in the collection light can pass through the second The polarizing element 221 is thus received by the first light sensor 23 . The light I ₂ generated by the light-emitting layer 211 can be directly transmitted to the second light sensor 24 . Therefore, the light I _{2 received by the second light sensor 24 is twice the light I 2 received} by the first light sensor 23 .

In the embodiment of the present application, that is, the dimming component 22 includes the second polarizing element 221 and the second quarter-wave plate 222, and does not include the third polarizing element 223 and the third quarter-wave plate hereinafter. 224, the processor 30 may also calculate the ambient light intensity according to the following formula:

P=X ₂ -2X ₁

Wherein, P is the ambient light intensity, X ₁ is the first light intensity detected by the first light sensor 23 , and X ₂ is the second light intensity detected by the second light sensor 24 .

The processor 30 can also calculate the ambient light chromaticity according to the following formula:

Q=Y ₂ -2Y ₁

Wherein, Q is the ambient light chromaticity, Y ₁ is the first light chromaticity detected by the first light sensor 23 , and Y ₂ is the second light chromaticity detected by the second light sensor 24 .

In some embodiments, referring to FIG. 5 , FIG. 5 is a fourth schematic diagram of a display device 20 provided by an embodiment of the present application. The dimming component 22 further includes a third polarizing element 223 , the third polarizing element 223 is disposed between the display screen 21 and the second light sensor 24 , and the third polarizing element 223 is connected to the second light sensor 24 . Right to the setting. The third polarizing element 223 is used to polarize the light. Wherein, when the light I ₂ generated by the light-emitting layer 211 is transmitted to the third polarizing element 223 , due to the polarization effect of the third polarizing element 223 , linearly polarized light is formed. After the light I ₂ forms linearly polarized light, it continues to be transmitted to the second light sensor 24 . Wherein, the third polarizing element 223 includes a third polarizing axis. In some embodiments, the third polarizing element 223 also includes a polarizer.

The second polarization axis is perpendicular to the first polarization axis, the third polarization axis is parallel to the first polarization axis, and the slow axis of the second quarter wave plate 222 is parallel to the first quarter The slow axis of one wave plate 221 is vertical.

When the ambient light I1 is transmitted to the inside of the electronic device ₁₀₀ through the display screen 21, the ambient light _I1 forms linearly polarized light when passing through the first polarizing element 212, and then the linearly polarized light transmits through the first polarizing element 212. When the quarter-wave plate 213 forms circularly polarized light, the circularly polarized light transmits through the display screen 21 and is transmitted to the dimming component 22 . Subsequently, when the circularly polarized light passes through the second quarter-wave plate 222 , linearly polarized light is formed again, and the polarization direction of the formed linearly polarized light is the same as the line formed when passing through the first polarizing element 212 . The polarization directions of polarized light are the same. Therefore, the polarization direction of the linearly polarized light formed again when the ambient light _I1 passes through the second quarter-wave plate 222 is perpendicular to the polarization axis of the second polarizing element 221, and cannot continue to pass through all The second polarizing element 221 is described. Therefore, the first light sensor 23 still cannot receive the ambient light I ₁ .

The ambient light _I1 forms linearly polarized light when it passes through the first polarizing element 212, and then forms circularly polarized light when the linearly polarized light passes through the first quarter-wave plate 213, and the circularly polarized light transmits the The display screen 21 can continue to pass through the third polarizing element 223 and be transmitted to the second light sensor 24 . Therefore, the second light sensor 24 can receive the ambient light I ₁ .

The light I ₂ generated by the light-emitting layer 211 is transmitted to the first light sensor 23 after passing through the second quarter-wave plate 222 and the second polarizing element 221 in sequence. Wherein, the light _I2 forms a collection light of linearly polarized light, circularly polarized light, and elliptically polarized light when passing through the second quarter-wave plate 222, and half of the light rays in the collection light can pass through the second The polarizing element 221 is thus received by the first light sensor 23 .

The light _I2 generated by the light-emitting layer 211 becomes linearly polarized light after passing through the first polarizing element 212, the linearly polarized light becomes circularly polarized light after passing through the first quarter-wave plate 213, and the circularly polarized light transmits through the first quarter wave plate 213. The third polarizing element 223 is then transmitted to the second light sensor 24 . The light I ₂ forms linear circularly polarized light when it passes through the first quarter-wave plate 213, and half of the circularly polarized light can pass through the third polarizing element 223, so that it is transmitted by the third polarizing element 223. Two light sensors 24 received.

Therefore, the light I ₂ received by the second light sensor 24 is the same as the light I ₂ received by the first light sensor 23 .

Therefore, in the embodiment of the present application, that is, when the dimming component 22 includes the second polarizing element 221 and the third polarizing element 223, the processor 30 can calculate the ambient light intensity according to the following formula:

P=X ₂ -X ₁

Wherein, P is the ambient light intensity, X ₁ is the first light intensity, and X ₂ is the second light intensity.

In addition, the processor 30 can calculate the ambient light chromaticity according to the following formula:

Q=Y ₂ -Y ₁

Wherein, Q is the ambient light chromaticity, Y ₁ is the first light chromaticity detected by the first light sensor 23 , and Y ₂ is the second light chromaticity detected by the second light sensor 24 .

It can be understood that the second polarization axis is parallel to the first polarization axis, the third polarization axis is parallel to the first polarization axis, and the slow axis of the second quarter-wave plate 222 is parallel to the first and fourth polarization axes. The slow axis of the half-wave plate 221 is parallel, and the second quarter-wave plate 222 changes the polarization direction of the transmitted light by 90 degrees.

Wherein, when the ambient light I1 is transmitted to the inside of the electronic device ₁₀₀ through the display screen 21, the ambient light _I1 forms linearly polarized light when passing through the first polarizing element 212, and then the linearly polarized light passes through the The first quarter wave plate 213 forms circularly polarized light, and the circularly polarized light is transmitted to the dimming component 22 . Then, the circularly polarized light forms linearly polarized light again when passing through the second quarter-wave plate 222 . Since the second quarter-wave plate 222 changes the polarization direction of the transmitted light by 90 degrees, the polarization direction of the linearly polarized light formed again when passing through the second quarter-wave plate 222 is the same as that of the transmitted light. The polarization direction of the linearly polarized light formed when passing through the first polarizing element 212 is vertical. And the polarization axis of the second polarizing element 221 is parallel to the polarization axis of the first polarizing element 212 , so the ambient light I ₁ forms linearly polarized light again when it passes through the second quarter-wave plate 222 The polarization direction of the second polarization element 221 is still perpendicular to the polarization axis of the second polarization element 221 , and cannot continue to pass through the second polarization element 221 . Therefore, the first light sensor 23 still cannot receive the ambient light I ₁ .

The ambient light _I1 forms linearly polarized light when passing through the first polarizing element 212, and then forms circularly polarized light when the linearly polarized light passes through the first quarter-wave plate 213, and the circularly polarized light is transmitted to the Dimming assembly 22 . Then, the circularly polarized light can pass through the third polarizing element 223 and be transmitted to the second light sensor 24 . Therefore, the second light sensor 24 can receive the ambient light I ₁ .

The light I ₂ generated by the light-emitting layer 211 is transmitted to the first light sensor 23 after passing through the second quarter-wave plate 222 and the second polarizing element 221 in sequence. Wherein, the light _I2 forms a collection light of linearly polarized light, circularly polarized light, and elliptically polarized light when passing through the second quarter-wave plate 222, and half of the light in the collection light can pass through the second The polarizing element 221 is thus received by the first light sensor 23 .

The light _I2 generated by the light-emitting layer 211 forms linearly polarized light after passing through the first polarizing element 212, and the linearly polarized light becomes circularly polarized light after passing through the first quarter-wave plate 213, and the circularly polarized light can pass through all The third polarizing element 223 is then transmitted to the first light sensor 23 . Wherein, the light I ₂ forms circularly polarized light when passing through the first quarter-wave plate 213, and half of the circularly polarized light can pass through the third polarizing element 223, thereby being transmitted by the second polarizing element 223. Light sensor 24 receives it.

Therefore, the light I ₂ received by the second light sensor 24 is the same as the light I ₂ received by the first light sensor 23 .

Therefore, in this embodiment of the present application, the processor 30 can still calculate the ambient light intensity according to the following formula:

P=X ₂ -X ₁

Wherein, P is the ambient light intensity, X ₁ is the first light intensity, and X ₂ is the second light intensity.

In addition, the processor 30 can still calculate the ambient light chromaticity according to the following formula:

Q=Y ₂ -Y ₁

Wherein, Q is the ambient light chromaticity, Y ₁ is the first light chromaticity detected by the first light sensor 23 , and Y ₂ is the second light chromaticity detected by the second light sensor 24 .

In some embodiments, referring to FIG. 6 , FIG. 6 is a fifth cross-sectional view of the display device 20 provided by the embodiments of the present application. Wherein, the dimming component 22 further includes a third quarter wave plate 224 .

The third quarter-wave plate 224 is disposed on the side of the third polarizing element 223 facing the display screen 21 . The third quarter-wave plate 224 and the third polarizing element 223 are disposed opposite to each other. The third quarter wave plate 224 can also be used to change the polarization type of light and change the polarization angle of light.

In some embodiments, the polarization axis of the second polarization element 221 is perpendicular to the polarization axis of the first polarization element 212 , that is, the second polarization axis is perpendicular to the first polarization axis. The slow axis of the second quarter wave plate 222 is perpendicular to the slow axis of the first quarter wave plate 213 . The polarization axis of the third polarization element 223 is parallel to the polarization axis of the first polarization element 212 , that is, the third polarization axis is parallel to the first polarization axis. The slow axis of the third quarter wave plate 224 is perpendicular to the slow axis of the first quarter wave plate 213 .

Wherein, when the ambient light I1 is transmitted to the inside of the electronic device ₁₀₀ through the display screen 21, the ambient light _I1 forms linearly polarized light when passing through the first polarizing element 212, and then the linearly polarized light passes through the The first quarter wave plate 213 forms circularly polarized light, and the circularly polarized light is transmitted to the dimming component 22 . Subsequently, when the circularly polarized light passes through the second quarter-wave plate 222 , linearly polarized light is formed again, and the polarization direction of the formed linearly polarized light is the same as the line formed when passing through the first polarizing element 212 . The polarization directions of polarized light are the same. Therefore, the polarization direction of the linearly polarized light formed again when the ambient light _I1 passes through the second quarter-wave plate 222 is perpendicular to the polarization axis of the second polarizing element 221, and cannot continue to pass through all The second polarizing element 221 is described. Therefore, the first light sensor 23 still cannot receive the ambient light I ₁ .

The ambient light _I1 forms linearly polarized light when passing through the first polarizing element 212, and then forms circularly polarized light when the linearly polarized light passes through the first quarter-wave plate 213, and the circularly polarized light is transmitted to the Dimming assembly 22 . Subsequently, the circularly polarized light forms linearly polarized light again when passing through the third quarter-wave plate 224 , and the polarization direction of the linearly polarized light formed is the same as the line formed when passing through the first polarizing element 212 The polarization directions of polarized light are the same. Therefore, the polarization direction of the linearly polarized light formed again when the ambient light _I1 passes through the third quarter-wave plate 224 is parallel to the polarization axis of the third polarizing element 223, and can continue to pass through all the The third polarizing element 223 is transmitted to the second light sensor 24 . Therefore, the second light sensor 24 can receive the ambient light I ₁ .

The light I ₂ generated by the light-emitting layer 211 is transmitted to the first light sensor 23 after passing through the second quarter-wave plate 222 and the second polarizing element 221 in sequence. Wherein, the light _I2 forms a collection light of linearly polarized light, circularly polarized light, and elliptically polarized light when passing through the second quarter-wave plate 222, and half of the light rays in the collection light can pass through the second The polarizing element 221 is thus received by the first light sensor 23 .

The light I ₂ generated by the light-emitting layer 211 is transmitted to the second light sensor 24 after passing through the third quarter-wave plate 224 and the third polarizing element 223 in sequence. Wherein, the light I ₂ forms a collection of linearly polarized light, circularly polarized light, and elliptically polarized light when passing through the third quarter-wave plate 224, and half of the light in the collection of light can pass through the third The polarizing element 223 is thus received by the second light sensor 24 .

Therefore, the light I ₂ received by the second light sensor 24 is the same as the light I ₂ received by the first light sensor 23 .

Therefore, in the embodiment of the present application, that is, when the dimming component 22 includes the second polarizing element 221 , the second quarter-wave plate 222 , the third polarizing element 223 and the third quarter-wave plate 224 , The processor 30 can calculate the ambient light intensity according to the following formula:

P=X ₂ -X ₁

Wherein, P is the ambient light intensity, X ₁ is the first light intensity, and X ₂ is the second light intensity.

In addition, the processor 30 can calculate the ambient light chromaticity according to the following formula:

Q=Y ₂ -2Y ₁

Wherein, Q is the ambient light chromaticity, Y ₁ is the first light chromaticity detected by the first light sensor 23 , and Y ₂ is the second light chromaticity detected by the second light sensor 24 .

In some embodiments, the polarization axis of the second polarization element 221 is parallel to the polarization axis of the first polarization element 213 , that is, the second polarization axis is parallel to the first polarization axis. The slow axis of the second quarter wave plate 222 is parallel to the slow axis of the first quarter wave plate 213 , and the second quarter wave plate 222 makes the polarization direction of the transmitted light Change 90 degrees. The polarization axis of the third polarization element 223 is perpendicular to the polarization axis of the first polarization element 212 , that is, the third polarization axis is perpendicular to the first polarization axis. The slow axis of the third quarter wave plate 224 is parallel to the slow axis of the first quarter wave plate 213, and the third quarter wave plate 224 makes the polarization direction of the transmitted light Change 90 degrees.

Wherein, when the ambient light I1 is transmitted to the inside of the electronic device ₁₀₀ through the display screen 21, the ambient light _I1 forms linearly polarized light when passing through the first polarizing element 212, and then the linearly polarized light passes through the The first quarter wave plate 213 forms circularly polarized light, and the circularly polarized light is transmitted to the dimming component 22 . Then, the circularly polarized light forms linearly polarized light again when passing through the second quarter-wave plate 222 . Since the second quarter-wave plate 222 changes the polarization direction of the transmitted light by 90 degrees, the polarization direction of the linearly polarized light formed again when passing through the second quarter-wave plate 222 is the same as that of the transmitted light. The polarization direction of the linearly polarized light formed when passing through the first polarizing element 212 is vertical. And the polarization axis of the second polarizing element 221 is parallel to the polarization axis of the first polarizing element 212 , so the ambient light I ₁ forms linearly polarized light again when it passes through the second quarter-wave plate 222 The polarization direction of the second polarization element 221 is still perpendicular to the polarization axis of the second polarization element 221 , and cannot continue to pass through the second polarization element 221 . Therefore, the first light sensor 23 still cannot receive the ambient light I ₁ .

The ambient light _I1 forms linearly polarized light when passing through the first polarizing element 212, and then forms circularly polarized light when the linearly polarized light passes through the first quarter-wave plate 213, and the circularly polarized light is transmitted to the Dimming assembly 22 . Subsequently, the circularly polarized light forms linearly polarized light again when transmitted through the third quarter wave plate 224 . Since the third quarter-wave plate 224 changes the polarization direction of the transmitted light by 90 degrees, the polarization direction of the linearly polarized light formed again when passing through the third quarter-wave plate 224 is the same as that of the transmitted light. The polarization direction of the linearly polarized light formed when passing through the first polarizing element 212 is vertical. The polarizing axis of the third polarizing element 223 is perpendicular to the polarizing axis of the first polarizing element 212 , so the ambient light I ₁ forms linearly polarized light again when it passes through the third quarter-wave plate 224 The polarization direction is parallel to the polarization axis of the third polarizing element 223 , and can continue to pass through the third polarizing element 223 and be transmitted to the second light sensor 24 . Therefore, the second light sensor 24 can receive the ambient light I ₁ .

The light I ₂ generated by the light-emitting layer 211 is transmitted to the first light sensor 23 after passing through the second quarter-wave plate 222 and the second polarizing element 221 in sequence. Wherein, the light _I2 forms a collection light of linearly polarized light, circularly polarized light, and elliptically polarized light when passing through the second quarter-wave plate 222, and half of the light rays in the collection light can pass through the second The polarizing element 221 is thus received by the first light sensor 23 .

The light I ₂ generated by the light-emitting layer 211 is transmitted to the second light sensor 24 after passing through the third quarter-wave plate 224 and the third polarizing element 223 in sequence. Wherein, the light I ₂ forms a collection of linearly polarized light, circularly polarized light, and elliptically polarized light when passing through the third quarter-wave plate 224, and half of the light in the collection of light can pass through the third The polarizing element 223 is thus received by the second light sensor 24 .

Therefore, the light I ₂ received by the second light sensor 24 is the same as the light I ₂ received by the first light sensor 23 .

Therefore, in this embodiment of the present application, the processor 30 can still calculate the ambient light intensity according to the following formula:

P=X ₂ -X ₁

Wherein, P is the ambient light intensity, X ₁ is the first light intensity, and X ₂ is the second light intensity.

In addition, the processor 30 can still calculate the ambient light chromaticity according to the following formula:

Q=Y ₂ -Y ₁

Wherein, Q is the ambient light chromaticity, Y ₁ is the first light chromaticity detected by the first light sensor 23 , and Y ₂ is the second light chromaticity detected by the second light sensor 24 .

In some embodiments, the polarization axis of the second polarization element 221 is parallel to the polarization axis of the first polarization element 213 , that is, the second polarization axis is parallel to the first polarization axis. The slow axis of the second quarter wave plate 222 is parallel to the slow axis of the first quarter wave plate 213 , and the second quarter wave plate 222 makes the polarization direction of the transmitted light Change 90 degrees. The polarization axis of the third polarization element 223 is parallel to the polarization axis of the first polarization element 212 , that is, the third polarization axis is parallel to the first polarization axis. The slow axis of the third quarter wave plate 224 is perpendicular to the slow axis of the first quarter wave plate 213 .

Wherein, when the ambient light I1 is transmitted to the inside of the electronic device ₁₀₀ through the display screen 21, the ambient light _I1 forms linearly polarized light when passing through the first polarizing element 212, and then the linearly polarized light passes through the The first quarter wave plate 213 forms circularly polarized light, and the circularly polarized light is transmitted to the dimming component 22 . Then, the circularly polarized light forms linearly polarized light again when passing through the second quarter-wave plate 222 . Since the second quarter-wave plate 222 changes the polarization direction of the transmitted light by 90 degrees, the polarization direction of the linearly polarized light formed again when passing through the second quarter-wave plate 222 is the same as that of the transmitted light. The polarization direction of the linearly polarized light formed when passing through the first polarizing element 212 is vertical. And the polarization axis of the second polarizing element 221 is parallel to the polarization axis of the first polarizing element 212 , so the ambient light I ₁ forms linearly polarized light again when it passes through the second quarter-wave plate 222 The polarization direction of the second polarization element 221 is still perpendicular to the polarization axis of the second polarization element 221 , and cannot continue to pass through the second polarization element 221 . Therefore, the first light sensor 23 still cannot receive the ambient light I ₁ .

The ambient light _I1 forms linearly polarized light when passing through the first polarizing element 212, and then forms circularly polarized light when the linearly polarized light passes through the first quarter-wave plate 213, and the circularly polarized light is transmitted to the Dimming assembly 22 . Subsequently, the circularly polarized light forms linearly polarized light again when transmitted through the third quarter wave plate 224 . At this time, the polarization direction of the linearly polarized light formed again when passing through the third quarter-wave plate 224 is parallel to the polarization direction of the linearly polarized light formed when passing through the first polarizing element 212 . The polarization axis of the third polarizing element 223 is parallel to the polarization axis of the first polarizing element 212 , so the ambient light I ₁ is again linearly polarized when it passes through the third quarter-wave plate 224 The polarization direction is parallel to the polarization axis of the third polarizing element 223 , and can continue to pass through the third polarizing element 223 and be transmitted to the second light sensor 24 . Therefore, the second light sensor 24 can receive the ambient light I ₁ .

The light I ₂ generated by the light-emitting layer 211 is transmitted to the first light sensor 23 after passing through the second quarter-wave plate 222 and the second polarizing element 221 in sequence. Wherein, the light _I2 forms a collection light of linearly polarized light, circularly polarized light, and elliptically polarized light when passing through the second quarter-wave plate 222, and half of the light rays in the collection light can pass through the second The polarizing element 221 is thus received by the first light sensor 23 .

The light I ₂ generated by the light-emitting layer 211 is transmitted to the second light sensor 24 after passing through the third quarter-wave plate 224 and the third polarizing element 223 in sequence. Wherein, the light I ₂ forms a collection of linearly polarized light, circularly polarized light, and elliptically polarized light when passing through the third quarter-wave plate 224, and half of the light in the collection of light can pass through the third The polarizing element 223 is thus received by the second light sensor 24 .

Therefore, the light I ₂ received by the second light sensor 24 is the same as the light I ₂ received by the first light sensor 23 .

Therefore, in this embodiment of the present application, the processor 30 can still calculate the ambient light intensity according to the following formula:

P=X ₂ -X _l

Wherein, P is the ambient light intensity, X ₁ is the first light intensity, and X ₂ is the second light intensity.

In addition, the processor 30 can still calculate the ambient light chromaticity according to the following formula:

Q=Y ₂ -Y ₁

Wherein, Q is the ambient light chromaticity, Y ₁ is the first light chromaticity detected by the first light sensor 23 , and Y ₂ is the second light chromaticity detected by the second light sensor 24 .

Please refer to FIG. 7 , which is a sixth schematic diagram of a display device provided by an embodiment of the present application.

The display device 20 further includes an infrared filter 25. The infrared filter 25 may be an interference filter, and the interference filter only allows light in the visible light band of 380nm-780nm to pass, except for the visible light band of 380nm-780nm. light is not allowed to pass through. The infrared filter 25 is arranged between the display screen 21 and the first light sensor 23 and the second light sensor 24. The infrared filter 25 is arranged directly opposite to the first light sensor 23 and the second light sensor 24. The infrared filter 25 can be used to block the passage of infrared light, so that the influence of infrared light on the first light sensor 23 and the second light sensor 24 can be prevented.

It can be understood that please refer to FIG. 8 , which is a seventh schematic diagram of a display device provided by an embodiment of the present application.

The infrared filter 25 may also include a first infrared filter part 251 and a second infrared filter part 252, wherein the first infrared filter part 251 is disposed opposite to the first light sensor 23, and the second infrared filter part 252 It is directly opposite to the second light sensor 24 . The area of the first infrared filter part 251 is larger than that of the first light sensor 23 , and the area of the second infrared filter part 252 is larger than that of the second light sensor 24 , which can increase the size of the first infrared filter part 251 and the second light sensor 24 . The blocking effect of the infrared filter part 252 on the infrared light in the ambient light.

Please refer to FIG. 9 , which is a schematic structural diagram of a second polarizing element in a display device provided by an embodiment of the present application.

The second polarizing element 221 includes a metal layer 2221 . The metal layer 2221 may be formed of, for example, copper, aluminum and other materials. Wherein, the metal layer 2221 is formed with a plurality of grooves 2222 distributed at intervals. For example, a plurality of the grooves 2222 may be formed on the metal layer 2221 by chemical etching.

Wherein, a plurality of the grooves 2212 are distributed in parallel. For example, a plurality of the grooves 2212 may be distributed in parallel along a direction perpendicular to the length of the second polarizing element 221 .

Please refer to FIG. 10 at the same time. FIG. 10 is a schematic structural diagram of a third polarizing element in a display device according to an embodiment of the present application.

The third polarizing element 223 includes a metal layer 2221 . The metal layer 2221 may be formed of, for example, copper, aluminum and other materials. Wherein, the metal layer 2221 is formed with a plurality of grooves 2222 distributed at intervals. For example, a plurality of the grooves 2222 may be formed on the metal layer 2221 by chemical etching.

Wherein, a plurality of the grooves 2222 are distributed in parallel. For example, a plurality of the grooves 2212 may be vertically distributed along a direction perpendicular to the length of the third polarizing element 223 . Therefore, the polarization axis of the second polarizing element 221 can be made perpendicular to the polarization axis of the third polarizing element 223 .

It can be understood that the plurality of grooves 2222 on the third polarizing element 223 may be distributed in parallel along the direction perpendicular to the length of the third polarizing element 223, and the plurality of grooves 2222 on the second polarizing element 221 may be distributed along the length of the third polarizing element 223. The direction perpendicular to the length of the second polarizing element 221 is vertically distributed, so that the polarizing axis of the second polarizing element 221 and the polarizing axis of the third polarizing element 223 can be perpendicular.

It can be understood that the plurality of grooves 2222 on the third polarizing element 223 may be distributed in parallel along the direction perpendicular to the length of the third polarizing element 223, and the plurality of grooves 2222 on the second polarizing element 221 may be distributed along the length of the third polarizing element 223. The direction perpendicular to the length of the second polarizing element 221 is distributed in parallel, so that the polarizing axis of the second polarizing element 221 and the polarizing axis of the third polarizing element 223 can be parallel.

Please refer to FIG. 11 . FIG. 11 is a cross-sectional view along the P-P direction in FIG. 9 . Wherein, on the second polarizing element 221, the width d1 of each of the grooves 2222 is greater than or equal to 50 nanometers and less than or equal to 100 nanometers. The depth d2 of each of the grooves 2222 is greater than or equal to 100 nanometers and less than or equal to 300 nanometers. The distance d3 between every two adjacent grooves 2222 is greater than or equal to 20 nanometers and less than or equal to 200 nanometers. Therefore, the second polarizing element 221 can be formed as a wire grid polarizer (WGP).

Please refer to FIG. 12 . FIG. 12 is an eighth schematic diagram of a display device provided by an embodiment of the present application. The display screen 21 further includes a cover plate 214 and a touch layer 215 .

The cover plate 214 is disposed on the side of the first polarizer 212 away from the first quarter-wave plate 213 . That is, the cover plate 214 is disposed on the outermost side of the display device 20 facing the user. The cover plate 214 can protect the display device 20 and prevent the display device 20 from being scratched.

It can be understood that the cover plate 214 may be a transparent glass cover plate, so that the cover plate 214 does not affect the user's observation of the content displayed by the display device 20 .

The touch layer 215 is disposed between the first polarizer 212 and the cover plate 214 . The touch layer 215 may be provided with a touch circuit to detect the user's touch operation, so as to realize the user's touch on the electronic device 100 .

An embodiment of the present application further provides a control method for an electronic device, and the control method for an electronic device may be applied to the electronic device 100 described in any of the foregoing embodiments.

Please refer to FIG. 13 . FIG. 13 is a first schematic flowchart of a control method for an electronic device provided by an embodiment of the present application.

Wherein, the control method of the electronic device includes:

101. Acquire a first light intensity through a first light sensor, where the first light intensity includes the intensity of light emitted by a display screen;

102. Acquire a second light intensity through a second light sensor, where the second light intensity includes the intensity of light emitted by the display screen and the intensity of ambient light passing through the display screen;

103. Calculate ambient light intensity according to the first light intensity and the second light intensity;

104. Control the electronic device according to the ambient light intensity.

The electronic device 100 can obtain the first light intensity X ₁ obtained by the first light sensor 23 and the second light intensity X ₂ detected by the second light sensor 24 , and then obtain the first light intensity X ₁ and the The second light intensity X ₂ determines the ambient light intensity.

For example, determining the ambient light intensity by the _first light intensity X1 and the _second light intensity X2 may include: calculating the intensity difference P between the _first light intensity X1 and the _second light intensity X2, And the intensity difference value P is determined as the ambient light intensity.

It can be understood that determining the ambient light intensity by the first light intensity X ₁ and the second light intensity X ₂ may include: calculating the first light intensity X ₁ and the intensity of twice the second light intensity X ₂ The difference value P is determined, and the intensity difference value P is determined as the ambient light intensity.

Controlling the electronic device 100 according to the ambient light intensity may include, for example, controlling the display brightness, display color, etc. of the electronic device 100, and may also include controlling the display mode of the electronic device 100, such as controlling the electronic device 100 according to the ambient light intensity Switch between day display mode and night display mode.

Wherein, controlling the electronic device according to the ambient light intensity includes: controlling the electronic device to adjust its brightness according to the ambient light intensity.

For example, when the ambient light intensity is greater than the preset ambient intensity threshold, the ambient light intensity is too strong, and when the user watches the screen of the electronic device 100 in this environment, the user's eyes will be damaged, and the user will be uncomfortable watching the screen. The display brightness needs to be appropriately reduced. When the ambient light intensity is less than the preset ambient intensity threshold, the ambient light intensity is too weak and the external environment brightness is relatively dark. When the user watches the screen of the electronic device 100 in this environment, the Increase display brightness. Therefore, the brightness of the display screen of the electronic device can be adjusted according to the intensity of the ambient light.

In some embodiments, please refer to FIG. 14 . FIG. 14 is a schematic flowchart of a second control method of an electronic device provided by an embodiment of the present application.

Wherein, the control method of the electronic device further includes:

105. Acquire a first light chromaticity through a first light sensor, where the first light chromaticity includes the chromaticity of light emitted by the display screen;

106. Acquire a second light chromaticity through a second light sensor, where the second light chromaticity includes the chromaticity of light emitted by the display screen and the chromaticity of ambient light passing through the display screen;

107. Calculate ambient light chromaticity according to the first light chromaticity and the second light chromaticity;

108. Control the electronic device according to the chromaticity of the ambient light.

The electronic device 100 can obtain the first light chromaticity Y ₁ detected by the first light sensor 23 and the second light chromaticity Y ₂ detected by the second light sensor 24 , and then obtain the first light chromaticity Y 1 according to the first light chromaticity Y ₁ and the second light chromaticity _Y2 to determine the ambient light chromaticity.

For example, determining the ambient light chromaticity according to the first light chromaticity _Y1 and the second light chromaticity _Y2 may include: calculating the first light chromaticity _Y1 and the second light chromaticity _Y2 The chromaticity difference value Q is determined as the ambient light chromaticity.

It can be understood that determining the ambient light chromaticity according to the first light chromaticity _Y1 and the second light chromaticity _Y2 may include: calculating the first light chromaticity _Y1 and 2 times the second light The chromaticity difference value Q of the chromaticity Y ₂ is determined as the ambient light chromaticity.

Controlling the electronic device 100 according to the ambient light chromaticity may include, for example, controlling the camera of the electronic device 100 to capture the background, the color of the display screen, and the like.

Wherein, controlling the electronic device according to the ambient light chromaticity includes:

The electronic device is controlled to adjust its shooting background according to the chromaticity of the ambient light.

The display device, the electronic device, and the control method for the electronic device provided by the embodiments of the present application have been described in detail above. The principles and implementations of the present application are described herein by using specific examples, and the descriptions of the above embodiments are only used to help the understanding of the present application. At the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific embodiments and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims (18)

1. A display device, characterized in that, comprising: The display screen includes a first polarizing element and a first quarter-wave plate, the first polarizing element has a first polarization axis, and the first quarter-wave plate is arranged in the direction of the first polarizing element to adjust one side of the optical assembly; a dimming component, arranged on one side of the display screen; a first light sensor, disposed on the side of the dimming assembly away from the display screen; and a second light sensor, disposed on the side of the dimming assembly away from the display screen; The dimming component includes: a second polarizing element, a third polarizing element, a second quarter-wave plate and a third quarter-wave plate, and the second polarizing element is disposed opposite to the first light sensor, The second polarizing element has a second polarizing axis, the third polarizing element is disposed opposite to the second light sensor, the third polarizing element has a third polarizing axis, and the second quarter-wave The plate is arranged on the side of the second polarizing element away from the first light sensor, the second quarter-wave plate is arranged directly opposite to the second polarizing element, and the third quarter-wave plate is arranged opposite to the second polarizing element. The plate is arranged on the side of the third polarizing element away from the second light sensor, and the third quarter-wave plate is arranged opposite to the third polarizing element; Wherein, the dimming component is used for filtering the ambient light passing through the display screen and the light emitted by the display screen, so that the first light sensor receives the light emitted by the display screen, the The second light sensor receives the light emitted by the display screen and the ambient light. 2 . The display device according to claim 1 , wherein the second polarization axis is perpendicular to the first polarization axis, and the third polarization axis is parallel to the first polarization axis, wherein the The slow axis of the second quarter wave plate is perpendicular to the slow axis of the first quarter wave plate. 3 . The display device according to claim 1 , wherein the second polarization axis is parallel to the first polarization axis, and the third polarization axis is parallel to the first polarization axis, wherein the The slow axis of the second quarter wave plate is parallel to the slow axis of the first quarter wave plate, and the second quarter wave plate changes the polarization direction of the transmitted light by 90 degrees. 4. The display device according to claim 1, wherein the second polarization axis is parallel to the first polarization axis, and the third polarization axis is perpendicular to the first polarization axis; wherein, The slow axis of the second quarter wave plate is parallel to the slow axis of the first quarter wave plate, and the slow axis of the third quarter wave plate is parallel to the first quarter wave plate The slow axis of one wave plate is parallel, and the third quarter wave plate and the second quarter wave plate both change the polarization direction of the transmitted light by 90 degrees. 5. The display device according to claim 1, wherein the second polarization axis is perpendicular to the first polarization axis, and the third polarization axis is parallel to the first polarization axis; wherein, The slow axis of the second quarter wave plate is perpendicular to the slow axis of the first quarter wave plate, and the slow axis of the third quarter wave plate is perpendicular to the first quarter wave plate The slow axis of a wave plate is vertical. 6. The display device according to claim 1, wherein the second polarization axis is parallel to the first polarization axis, and the third polarization axis is parallel to the first polarization axis; wherein, The slow axis of the second quarter wave plate is parallel to the slow axis of the first quarter wave plate, and the slow axis of the third quarter wave plate is parallel to the first quarter wave plate The slow axis of one wave plate is vertical, and the second quarter wave plate changes the polarization direction of the transmitted light by 90 degrees. 7. An electronic device, characterized in that, comprising: The display screen includes a first polarizing element and a first quarter-wave plate, the first polarizing element has a first polarization axis, and the first quarter-wave plate is arranged in the direction of the first polarizing element to adjust one side of the optical assembly; a dimming component, arranged on one side of the display screen; a first light sensor, disposed on the side of the dimming assembly away from the display screen; a second light sensor, disposed on the side of the dimming assembly away from the display screen; The dimming component includes: a second polarizing element, a third polarizing element, a second quarter-wave plate and a third quarter-wave plate, and the second polarizing element is disposed opposite to the first light sensor, The second polarizing element has a second polarizing axis, the third polarizing element is disposed opposite to the second light sensor, the third polarizing element has a third polarizing axis, and the second quarter-wave The plate is arranged on the side of the second polarizing element away from the first light sensor, the second quarter-wave plate is arranged directly opposite to the second polarizing element, and the third quarter-wave plate is arranged opposite to the second polarizing element. The plate is arranged on the side of the third polarizing element away from the second light sensor, and the third quarter-wave plate is arranged opposite to the third polarizing element; Wherein, the dimming component is used for filtering the ambient light passing through the display screen and the light emitted by the display screen, so that the first light sensor receives the light emitted by the display screen, the The second light sensor receives the light emitted by the display screen and the ambient light; and a processor, electrically connected to the first light sensor and the second light sensor, and the processor is used for: The ambient light intensity is calculated according to the first light intensity received by the first light sensor and the second light intensity received by the second light sensor, or the chromaticity of the first light received by the first light sensor and The second light chromaticity received by the second light sensor calculates the ambient light chromaticity. 8 . The electronic device according to claim 7 , wherein the second polarization axis is perpendicular to the first polarization axis, and the third polarization axis is parallel to the first polarization axis. 9 . 9 . The electronic device according to claim 8 , wherein the slow axis of the second quarter-wave plate is perpendicular to the slow axis of the first quarter-wave plate. 10 . 10. The electronic device according to claim 7, wherein the second polarization axis is parallel to the first polarization axis, the third polarization axis is parallel to the first polarization axis, wherein the The slow axis of the second quarter wave plate is parallel to the slow axis of the first quarter wave plate, and the second quarter wave plate changes the polarization direction of the transmitted light by 90 degrees. 11. The electronic device according to claim 7, wherein the second polarization axis is parallel to the first polarization axis, and the third polarization axis is perpendicular to the first polarization axis; wherein, The slow axis of the second quarter wave plate is parallel to the slow axis of the first quarter wave plate, and the slow axis of the third quarter wave plate is parallel to the first quarter wave plate The slow axis of one wave plate is parallel, and the third quarter wave plate and the second quarter wave plate both change the polarization direction of the transmitted light by 90 degrees. 12. The electronic device according to claim 7, wherein the second polarization axis is perpendicular to the first polarization axis, and the third polarization axis is parallel to the first polarization axis; wherein, The slow axis of the second quarter wave plate is perpendicular to the slow axis of the first quarter wave plate, and the slow axis of the third quarter wave plate is perpendicular to the first quarter wave plate The slow axis of a wave plate is vertical. 13. The electronic device according to claim 7, wherein the second polarization axis is parallel to the first polarization axis, and the third polarization axis is parallel to the first polarization axis; wherein, The slow axis of the second quarter wave plate is parallel to the slow axis of the first quarter wave plate, and the slow axis of the third quarter wave plate is parallel to the first quarter wave plate The slow axis of one wave plate is vertical, and the second quarter wave plate changes the polarization direction of the transmitted light by 90 degrees. 14. The electronic device according to claim 7, wherein the processor calculates the ambient light intensity according to the following formula: P=X ₂ -X ₁ The processor calculates the ambient light chromaticity according to the following formula: Q=Y ₂ -Y ₁ Wherein, P is the ambient light intensity, X ₁ is the first light intensity, X ₂ is the second light intensity; Q is the ambient light chromaticity, Y ₁ is the first light chromaticity, Y ₂ is the second light chromaticity. 15. A control method for an electronic device, wherein, when applied to the electronic device according to any one of claims 7-14, the control method for the electronic device comprises: Obtaining a first light intensity through a first light sensor, where the first light intensity includes the intensity of light emitted by the display screen; Obtaining a second light intensity through a second light sensor, where the second light intensity includes the intensity of light emitted by the display screen and the intensity of ambient light passing through the display screen; calculating ambient light intensity according to the first light intensity and the second light intensity; The electronic device is controlled according to the ambient light intensity. 16. The method for controlling an electronic device according to claim 15, wherein controlling the electronic device according to the ambient light intensity comprises: The electronic device is controlled to adjust its brightness according to the ambient light intensity. 17. The control method of an electronic device according to claim 16, wherein the control method of the electronic device further comprises: Obtaining the first light chromaticity by using the first light sensor, the first light chromaticity includes the chromaticity of the light emitted by the display screen; Obtaining a second light chromaticity by using a second light sensor, the second light chromaticity includes the chromaticity of the light emitted by the display screen and the chromaticity of the ambient light passing through the display screen; Calculate ambient light chromaticity according to the first light chromaticity and the second light chromaticity; The electronic device is controlled according to the ambient light chromaticity. 18. The control method of an electronic device according to claim 17, wherein controlling the electronic device according to the ambient light chromaticity comprises: The electronic device is controlled to adjust its shooting background according to the chromaticity of the ambient light.

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