CN107978261B

CN107978261B - Electronic device

Info

Publication number: CN107978261B
Application number: CN201711175981.3A
Authority: CN
Inventors: 张海平; 周意保
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2017-11-22
Filing date: 2017-11-22
Publication date: 2021-06-29
Anticipated expiration: 2037-11-22
Also published as: CN107978261A

Abstract

The embodiment of the application provides an electronic device, the arc-shaped structure of the cover plate enables light rays incident to the arc-shaped structure from the display screen to exit from the front of the cover plate so that the light emergent area of the cover plate at least covers part of the light shading area, the proportion of the display area of the display screen is improved while the black edge is visually reduced by utilizing the optical refraction principle, a sensor assembly is further arranged between the cover plate and the display screen, the sensor assembly comprises a signal transmitter and a signal receiver, the signal transmitting angle of the signal transmitter is larger than the maximum incident angle of the light rays incident to the arc-shaped structure so as to reduce the influence of the brightness of the display area of the display screen on the sensor assembly, the detection accuracy of the sensor assembly is further improved, the accuracy of controlling the display screen to be off or on to be bright by the electronic device is improved, and the influence of signals transmitted by the sensor assembly on the display screen can be avoided, the service life of the display screen is prolonged.

Description

Electronic device

Technical Field

The present disclosure relates to electronic devices, and particularly to an electronic device.

Background

With the development of communication technology, electronic devices such as smart phones are becoming more and more popular. In the use process of the electronic equipment, for example, in the call process, in order to avoid misoperation of the electronic equipment by a user, when the face of the user approaches the electronic equipment for a certain distance, the electronic equipment automatically turns off the screen.

Generally, an electronic device detects approach and departure of a user's face by a proximity sensor, and controls the electronic device to turn off or on a screen according to the detected data.

Disclosure of Invention

The embodiment of the application provides an electronic device, which can improve the accuracy of controlling a display screen to be turned off or on by the electronic device.

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

a housing;

the display screen is arranged on the front side of the shell, and shading areas are arranged on two opposite sides of the display screen;

the display screen comprises a cover plate, the cover plate covers the display screen, the opposite side of the cover plate is provided with an arc-shaped structure, light rays incident to the arc-shaped structure from the display screen are emitted from the front face of the cover plate so that the light emitting area of the cover plate at least covers a part of a shading area, a sensor assembly is further arranged between the cover plate and the display screen, the sensor assembly comprises a signal emitter and a signal receiver, and the signal emitting angle of the signal emitter is larger than the maximum incident angle of the light rays incident to the arc-shaped structure.

In the electronic device provided by the embodiment of the application, the arc-shaped structure of the cover plate enables light incident to the arc-shaped structure from the display screen to exit from the front surface of the cover plate so that the light emergent area of the cover plate at least covers a part of the light shielding area, the ratio of the display area of the display screen is improved while the black edge (the non-display area formed by being shielded by the light shielding area) is visually reduced by utilizing the optical refraction principle, a sensor assembly is further arranged between the cover plate and the display screen, the sensor assembly comprises a signal transmitter and a signal receiver, the signal emitting angle of the signal transmitter is larger than the maximum incident angle of the light incident to the arc-shaped structure so as to reduce the influence of the brightness of the display area of the display screen on the sensor assembly and further improve the detection accuracy of the sensor assembly, thereby improving the accuracy of the electronic device in controlling the display screen to be turned off or turned on, meanwhile, the influence of the signal emitted by the sensor component on the display screen can be avoided, and the service life of the display screen is prolonged.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a housing according to an embodiment of the present application.

Fig. 3 is another schematic structural diagram of the housing according to the embodiment of the present application.

Fig. 4 is a cross-sectional view of the electronic device of fig. 1 along a direction a-a.

Fig. 5 is another cross-sectional view of the electronic device of fig. 1 taken along the direction a-a.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

The embodiment of the application provides an electronic device which can be a smart phone, a tablet computer and the like. Referring to fig. 1, fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure. The electronic device 100 includes a cover plate 10, a display 20, a circuit board 30, and a case 40.

Wherein the cover plate 10 is mounted to the display screen 20 to cover the display screen 20. The cover plate 10 may be a transparent glass cover plate. In some embodiments, the cover plate 10 may be a glass cover plate made of a material such as sapphire.

Wherein the display screen 20 is mounted on the housing 40 to form a display surface of the electronic device 100. The display 20 serves as a front case of the electronic device 100, and forms a closed space with the housing 40 for accommodating other electronic components of the electronic device 100. Meanwhile, the display screen 20 forms a display surface of the electronic apparatus 100 for displaying information such as images, texts, and the like. The Display screen 20 may be a Liquid Crystal Display (LCD) or an Organic Light-Emitting Diode (OLED) Display screen. When the display screen 20 is a liquid crystal display screen, the display screen 20 may include a backlight plate, a lower polarizer, an array substrate, a liquid crystal layer, a color film substrate, an upper polarizer, and the like, which are sequentially stacked. When the display panel 20 is an organic light emitting diode display panel, the display panel 20 may include a base layer, an anode, an organic layer, a conductive layer, an emission layer, a cathode, and the like, which are sequentially stacked.

The circuit board 30 is mounted inside the housing 40 to accommodate the circuit board 30 in the closed space. The circuit board 30 may be a motherboard of the electronic device 100. The circuit board 30 is provided with a grounding point to realize grounding of the circuit board 30. Functional components such as a camera and a processor may be integrated on the circuit board 30. Meanwhile, the display screen 20 may be electrically connected to the circuit board 30. In some embodiments, display control circuitry is disposed on the circuit board 30. The display control circuit outputs an electrical signal to the display screen 20 to control the display screen 20 to display information.

Wherein the housing 40 is used to form the outer contour of the electronic device 100. The housing 40 may be a metal housing, such as an aluminum alloy housing 40. It should be noted that the material of the housing 40 in the embodiment of the present application is not limited to this, and other manners may also be adopted, such as: the housing 40 may be a ceramic center frame or a glass center frame. For another example: the housing 40 may be a plastic bezel. Also for example: the housing 40 may be a metal and plastic mating structure, and may be formed by injection molding a plastic portion onto a metal plate.

In some embodiments, as shown in fig. 2, fig. 2 is a schematic structural diagram of a housing provided in an embodiment of the present application. The housing 40 may be integrally formed. Note that the structure of the housing 40 according to the embodiment of the present application is not limited to this. Such as: referring to fig. 3, fig. 3 is another schematic structural diagram of a housing according to an embodiment of the present disclosure. The housing 40 may include a middle frame 41 and a rear cover 42, wherein the middle frame 41 and the rear cover 42 are fixedly connected to form the housing 40.

In some embodiments, referring to fig. 4, fig. 4 is a cross-sectional view of the electronic device of fig. 1 along a direction a-a. The electronic device 100 includes a cover plate 10, a display 20, a circuit board 30, and a case 40. Fig. 4 shows a structure in which one side of the electronic apparatus 100 is omitted in a cross-sectional view in the a-a direction.

The display screen 20 is disposed at the front side of the housing 40, light-shielding regions 201 are disposed at opposite sides of the display screen 20, a non-display region 21 of the display screen 20 is formed by a region shielded by the light-shielding regions 201, and a display region 22 of the display screen 20 is formed by a region not shielded by the light-shielding regions 201. The non-display area 21 is the physical black border of the display screen 20. In some embodiments, the light-blocking region is an ink region.

The cover plate 10 covers the display screen 20, the opposite side of the cover plate 10 has an arc structure 11, and light incident on the arc structure 11 from the display area 22 of the display screen 20 exits from the front surface of the cover plate 10 so that the light exiting area of the cover plate 10 at least covers a part of the light shielding area 201.

In some embodiments, a functional component 50 is disposed between the cover plate 10 and the display screen 20, the functional component 50 can transmit signals through the cover plate 10, and the functional component 50 can also receive signals through the cover plate 10. In some embodiments, the functional component 50 may be a sensor component 50, and the sensor component 50 may include a signal emitter 51 and a signal receiver 52. Wherein, functional unit 50 also can be the subassembly of making a video recording, and the subassembly of making a video recording can include camera, light filling lamp. The functional components 50 may also include speaker components, among other things. In some embodiments, the functional component 50 is illustrated as a sensor component, and it should be noted that the sensor component is not limited to the functional component 50 in the embodiments of the present application, and may be other devices.

For example, a sensor assembly 50 is further disposed between the cover plate 10 and the display screen 20, the sensor assembly 50 includes a signal emitter 51 and a signal receiver 52, and a signal emitting angle 510 of the signal emitter 51 is greater than a maximum incident angle 220 of the light incident to the arc structure 11.

For example, the signal transmitter 51 is used to transmit the probe signal a outward. The detection signal a is transmitted to the outside through the arc-shaped structure 11. After the detection signal A contacts an external object (for example, the face of a user), a reflection signal B is generated. The reflected signal B passes through the arcuate structure 11 into the signal receiver 52. After receiving the reflected signal B, the signal receiver 51 may output the received signal to a processor of the electronic device 100 for processing, so as to control the display screen of the electronic device 100 to turn off or turn on.

In some embodiments, the signal emitter 51 and the signal receiver 52 of the sensor assembly 50 are both disposed on the light-shielded region 201. The signal emitter 51 and the signal receiver 52 of the sensor assembly 50 can be disposed at any position of the shading area 201 on the basis of ensuring that the signal emitting angle 510 of the signal emitter 51 is larger than the maximum incident angle 220 of the light incident to the arc-shaped structure 11. Wherein, the signal transmitter 51 and the signal receiver 52 can be integrated together and packaged into a chip; the signal transmitter 51 and the signal receiver 52 may be independently provided.

In some embodiments, the cover plate 10 further includes a front structure 12 located between the arcuate structures 11 on opposite sides of the cover plate 10, and the surface of the front structure 12 may be planar or curved upwardly.

In some embodiments, the arc structure 11 includes a groove portion 111 and a light guide portion 112 and a transmission portion 113 respectively located at both sides of the groove portion 111. The transmissive portion 113 is located outside the arc-shaped structure 11, and the light guide portion 112 is located between the groove-cutting portion 111 and the front structure 12.

In some embodiments, the front structure 12 of the cover plate 10 is opposite to the display area 22 of the display screen 20, and the recessed portion 111 is a concave surface of the arc-shaped structure 11 that is concave towards the cover plate 10. The light guide portion 112 is a first arc surface protruding outward and connected between the groove portion 111 and the front structure 12 of the cover plate 10, and the transmission portion 113 is a slant surface or a second arc surface protruding outward and formed by extending the groove portion 111 toward the outermost end of the arc structure 11.

The cut-out portion 111 and the transmission portion 113 are orthographically projected on the non-display area 21 of the display panel 20, and the light guide portion 112 is orthographically projected on the display area 22 and a part of the non-display area 21. The light guide portion 112 connected to the slot portion 111 is used for refracting the light emitted from the display region 22 out of the cover plate 10 from the inside of the cover plate 10. The sensor assembly 50 transmits signals or/and receives signals through the cut groove portion 111 or the transmissive portion 113.

When light enters the light guide portion 112 from the display area 22 of the display 20, the light at the edge passes through the light guide portion 112, and the light emitted from the display area 22 can be emitted from the front surface of the cover 10 by using the principle of optical refraction, so that the light emitting area of the cover 10 is larger than the display area 22 of the display 20. The notch 111 is equivalent to moving the whole light guide part 112 into the cover plate 10, and effectively reduces the thickness of the cover plate 10 when only the black edge of 0.1 to 0.2mm is increased, and further, when viewed from the user, light is emitted from the light guide part 112 and can be emitted along the normal direction of the cover plate 10, and the light at the outermost edge of the light guide part 112 only reaches the connection part between the light guide part 112 and the notch 111, so that the non-display area 21 viewed visually is reduced or disappeared, and the occupation ratio of the display area 22 of the display screen is visually increased. The sensor assembly 50 is disposed on the non-display area 21 covered by the light shielding area 201, and can emit or receive signals through the transmissive portion 113 or the cut-away portion 111, so as to effectively avoid the influence of the brightness of the display screen on the sensor assembly, and since the non-display area 21 visually seen by the user is reduced or disappears, the sensor assembly 50 disposed in the non-display area 21 can be visually hidden by the blind area.

In the embodiment of the present invention, the projection area of the cover plate 10 on the display screen 20 is larger than the range of the display area 22, that is, the cover plate 10 completely covers the display area 22 and completely or partially covers the non-display area 21. In some embodiments, the arc-shaped structures 11 of the cover plate 10 are aligned with or protrude from the edges of the non-display regions 21 at both sides of the display region 22, respectively, the light guide part 112 is positioned above the non-display regions 21, and the light guide part 112 may be partially positioned above the display region 22, and the light guide part 112 may cross the boundary between the display region 22 and the non-display region 21.

An included angle formed by the incident direction 221 of the light beam incident on the display region 22 of the display screen 20 to the connection between the light guide portion 11 and the groove portion 111 and the horizontal plane of the display screen 20 is the maximum incident angle 220, and an included angle formed by the emission direction 511 of the signal emitted by the signal emitter 51 to the transmission portion 113 or the groove portion 111 and the horizontal plane of the display screen 20 is the signal emission angle 510.

In some embodiments, the signal emitter 51 of the sensor assembly 50 is disposed at a side close to the display region 22, and an emission direction 511 of a signal emitted from the signal emitter 51 to a connection position of the transmissive portion 113 and the cut groove portion 111 forms an angle with a horizontal plane of the display screen 20, which is a minimum signal emission angle of the signal emission angles 510, wherein the minimum signal emission angle of the signal emission angles 510 is greater than the maximum incident angle 220 of the light incident to the arc structure 11.

In some embodiments, the sensor assembly 50 is an infrared proximity sensor, the signal transmitter 51 of which transmits infrared light to the outside through the transmissive portion 113 or the cut-out portion 111, and the signal receiver 52 of which receives infrared light reflected from the outside through the transmissive portion 113 or the cut-out portion 111. For example, if the signal emitter 51 and the signal receiver 52 of the infrared proximity sensor are simultaneously disposed at a side close to the display region 22, the signal emitter 51 of the infrared proximity sensor emits infrared light to the outside through the cut groove portion 111, and the signal receiver 52 of the infrared proximity sensor receives infrared light reflected from the outside through the cut groove portion 111. For example, if the signal emitter 51 of the infrared proximity sensor is disposed at a side close to the display region 22 and the signal receiver 52 is disposed at a side far from the display region 22, the signal emitter 51 of the infrared proximity sensor emits infrared light to the outside through the cut groove portion 111, and the signal receiver 52 of the infrared proximity sensor receives the infrared light reflected from the outside through the transmissive portion 113. For example, if the signal emitter 51 and the signal receiver 52 of the infrared proximity sensor are simultaneously disposed on the side away from the display area 22, the signal emitter 51 of the infrared proximity sensor emits infrared light to the outside through the transmissive portion 113, and the signal receiver 52 of the infrared proximity sensor receives infrared light reflected from the outside through the transmissive portion 113. The signal emitting angle 510 of the signal emitter 51 is greater than the maximum incident angle 220 of the light entering the light guide portion 112, so that it can be ensured that the infrared light signal emitted by the signal emitter 51 does not intersect with the visible light signal emitted by the display screen, the influence of the display area brightness of the display screen on the infrared proximity sensor is reduced, the accuracy of the detection proximity state of the infrared proximity sensor is further improved, the accuracy of the electronic device for controlling the display screen to be turned off or on according to the proximity state is improved, and meanwhile, the influence of the infrared light emitted by the infrared proximity sensor on the display screen can be avoided.

In some embodiments, the sensor assembly 50 is an ambient light sensor. Wherein the ambient light sensor is used for detecting the intensity of ambient light. The electronic device 100 may adjust the brightness of the display screen 20 based on the intensity of the ambient light detected by the ambient light sensor. The signal receiver 52 of the ambient light sensor receives ambient light from the outside through the transmissive portion 113 or the cut-away portion 111. For example, the signal receiver 52 of the ambient light sensor is disposed at a side away from the display area 22, and the signal receiver 52 of the ambient light sensor receives ambient light from the outside through the transmissive portion 113. For example, the signal receiver 52 of the ambient light sensor is disposed at a side close to the display region 22, and the signal receiver 52 of the ambient light sensor receives ambient light from the outside through the cut groove portion 111. An included angle formed by the incident direction 221 of the light beam incident to the joint of the light guide portion 11 and the groove cutting portion 111 in the display region 22 of the display screen 20 and the horizontal plane of the display screen 20 is the maximum incident angle 220, the action edge of the bright light of the visible display region 22 is the joint of the light guide portion 11 and the groove cutting portion 111, and the receiving range of the signal receiver 52 of the ambient light sensor is the groove cutting portion 111 and the transmission portion 113, so that the influence of the display region brightness of the display screen on the signal receiver can be reduced, the detection accuracy of the ambient light sensor is improved, and the accuracy of the electronic device for adjusting the display screen brightness is improved.

In some embodiments, the sensor assembly 50 is an ultrasonic sensor, the signal transmitter 51 of the ultrasonic sensor radiates ultrasonic waves to the outside through the transmissive portion 113 or the cutaway portion 111, and the signal receiver 52 of the ultrasonic sensor receives the ultrasonic waves reflected from the outside through the transmissive portion 113 or the cutaway portion 111. For example, the signal transmitter 51 and the signal receiver 52 of the ultrasonic sensor are simultaneously disposed at a side close to the display region 22, the signal transmitter 51 of the ultrasonic sensor radiates ultrasonic waves to the outside through the cut groove portion 111, and the signal receiver 52 of the ultrasonic sensor receives the ultrasonic waves reflected from the outside through the cut groove portion 111. For example, the signal transmitter 51 of the ultrasonic sensor is disposed at a side close to the display region 22, the signal receiver 52 is disposed at a side far from the display region 22, the signal transmitter 51 of the ultrasonic sensor radiates ultrasonic waves to the outside through the cut groove portion 111, and the signal receiver 52 of the ultrasonic sensor receives the ultrasonic waves reflected from the outside through the transmissive portion 113. For example, the signal transmitter 51 and the signal receiver 52 of the ultrasonic sensor are both disposed on a side away from the display area 22, the signal transmitter 51 of the ultrasonic sensor radiates ultrasonic waves to the outside through the transmissive portion 113, and the signal receiver 52 of the ultrasonic sensor receives the ultrasonic waves reflected from the outside through the transmissive portion 113. The signal emitting angle 510 of the signal emitter 51 is greater than the maximum incident angle 220 of the light entering the light guide portion 112, so that the ultrasonic signal emitted by the signal emitter 51 and the visible light signal emitted by the display screen are not intersected, the influence of the brightness of the display area of the display screen on the ultrasonic sensor is reduced, the accuracy of the detection approach state of the ultrasonic sensor is further improved, the accuracy of the electronic device for controlling the display screen to be turned off or on according to the approach state is improved, and meanwhile, the influence of the ultrasonic wave emitted by the ultrasonic sensor on the display screen can be avoided.

In some embodiments, as shown in FIG. 5, FIG. 5 is another cross-sectional view of the electronic device of FIG. 1 along the A-A direction. A light shielding layer 130 may be coated on the lower surface 13 of the cap plate 10 corresponding to the light shielding region 201. The orthographic projection of the light shielding layer 130 on the lower surface 13 of the cover plate 10 covers a part of the light shielding region 201 on the display screen, and the maximum edge of the light shielding layer 130 on the lower surface 13 of the cover plate 10 cannot shield the incident light with the maximum incident angle.

The light shielding layer 130 is used to shield the ultrasonic sensor, so that the ultrasonic sensor is hidden visually, and the influence of external light on the ultrasonic sensor can be reduced.

In some embodiments, the light-shielding layer 130 is an ink layer.

In the electronic device provided by the embodiment of the application, the arc-shaped structure of the cover plate enables the light incident to the arc-shaped structure from the display screen to exit from the front surface of the cover plate so that the light emergent area of the cover plate at least covers part of the light shading area, the proportion of the display area of the display screen is improved while the black edge is visually reduced by utilizing the optical refraction principle, a sensor assembly is further arranged between the cover plate and the display screen, the sensor assembly comprises a signal transmitter and a signal receiver, the signal emitting angle of the signal transmitter is larger than the maximum incident angle of the light incident to the arc-shaped structure so as to reduce the influence of the brightness of the display area of the display screen on the sensor assembly and further improve the detection accuracy of the sensor assembly, thereby improving the accuracy of controlling the display screen to be turned off or turned on the display screen by the electronic device, and simultaneously avoiding the influence of the signal emitted by the sensor assembly on the display screen, the service life of the display screen is prolonged.

The electronic devices provided by the embodiments of the present application are described in detail above, and the principles and implementations of the present application are described herein using specific examples, which are provided only to help understanding of the present application. Meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. An electronic device, comprising:

a housing;

the display screen is arranged on the front side of the shell, light shading areas are arranged on two opposite sides of the display screen, areas shaded by the light shading areas form non-display areas of the display screen, and areas not shaded by the light shading areas form display areas of the display screen;

the cover plate is covered with the display screen, the opposite side of the cover plate is provided with an arc-shaped structure, the arc-shaped structure comprises a slot cutting part, a light guide part and a transmission part, the light guide part and the transmission part are respectively positioned at two sides of the slot cutting part, the orthographic projection of the slot cutting part and the transmission part is positioned in the non-display area, the light guide part is orthographic projected on the display area and part of the non-display area, light rays incident to the arc-shaped structure by the display screen are emitted from the front surface of the cover plate so that the light emitting area of the cover plate at least covers part of a light shielding area, a sensor assembly is also arranged between the cover plate and the display screen, the sensor assembly is an infrared proximity sensor or an ultrasonic sensor, the sensor assembly comprises a signal transmitter and a signal receiver, and the signal transmitter and the signal receiver are both arranged at, the display screen transmits visible light signals through the light guide part, the sensor assembly transmits signals and/or receives signals through the transmission part or the groove cutting part, an included angle formed by the transmitting direction of the signals transmitted to the transmission part or the groove cutting part by the signal transmitter and the horizontal plane of the display screen is a signal transmitting angle, an included angle formed by the transmitting direction of the signals transmitted to the connection part of the transmission part and the groove cutting part by the signal transmitter and the horizontal plane of the display screen is a minimum signal transmitting angle of the signal transmitting angle, an included angle formed by the incident direction of light rays incident to the connection part of the light guide part and the groove cutting part in the display area of the display screen and the horizontal plane of the display screen is a maximum incident angle, and the minimum signal transmitting angle is larger than the maximum incident angle.

2. The electronic device according to claim 1, wherein the sensor assembly is an infrared proximity sensor, a signal transmitter of the infrared proximity sensor transmits infrared light to the outside through the transmissive portion or the cutaway portion, and a signal receiver of the infrared proximity sensor receives the infrared light reflected from the outside through the transmissive portion or the cutaway portion.

3. The electronic device according to claim 1, wherein the sensor component is an ultrasonic sensor, a signal transmitter of the ultrasonic sensor radiates ultrasonic waves to the outside through the transmissive portion or the cutaway portion, and a signal receiver of the ultrasonic sensor receives the ultrasonic waves reflected from the outside through the transmissive portion or the cutaway portion.

4. The electronic device according to claim 3, wherein a light shielding layer is applied to a lower surface of the cover plate corresponding to the light shielding region, the light shielding layer being configured to shield the ultrasonic sensor.

5. The electronic device of claim 4, wherein the light-shielding layer is an ink layer.

6. The electronic device of claim 1, wherein the cover plate further comprises a front structure located between the arcuate structures on opposite sides of the cover plate, the front structure having a surface that is planar or curved that is upwardly arched.

7. The electronic device according to claim 1, wherein the groove cut portion is a concave surface of the arc-shaped structure that is concave toward the cover plate, the light guide portion is a convex first arc surface connected between the groove cut portion and the front structure of the cover plate, and the transmission portion is a slant surface or a convex second arc surface formed by extending the groove cut portion toward the outermost end of the arc-shaped structure.