CN107968884B

CN107968884B - Electronic device

Info

Publication number: CN107968884B
Application number: CN201711176990.4A
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: 2020-05-12
Anticipated expiration: 2037-11-22
Also published as: CN107968884A

Abstract

The embodiment of the present application provides an electronic device, including a display screen and a circuit board, wherein a sensor assembly is arranged on the circuit board, and the sensor assembly includes a signal transmitter and a signal receiver; a first reflective structure is arranged on the circuit board, and the reflective surface of the first reflective structure faces the signal transmitter, and the first reflective structure, the signal transmitter, and the signal receiver are arranged in a straight line; the signal transmitter has a signal transmitting surface, and the signal transmitting surface faces the reflective surface of the first reflective structure. The electronic device can improve the accuracy of the sensor assembly detecting the reflected signal strength value, thereby improving the accuracy of the electronic device controlling the display screen to turn off or on.

Description

Electronic device

Technical Field

The present application relates to the field of electronic technologies, and in particular, 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 the approach and the departure of a user's face by a proximity sensor, and controls a display screen state of the electronic device, such as turning off or lighting, 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: the display screen and the circuit board are arranged on one side of the display screen;

the sensor assembly is arranged on one side, facing the display screen, of the circuit board and comprises a signal transmitter and a signal receiver;

the circuit board is provided with a first reflection structure, the reflection surface of the first reflection structure faces the signal transmitter, and the first reflection structure, the signal transmitter and the signal receiver are arranged in a straight line;

the signal emitter is provided with a signal emitting surface, a first included angle between the signal emitting surface and the plane where the circuit board is located is an acute angle, and the signal emitting surface faces the reflecting surface of the first reflecting structure;

the signal transmitter transmits a detection signal, the detection signal is reflected by the reflecting surface of the first reflecting structure and transmitted to the outside through the display screen, the detection signal is reflected by an external object to form a reflection signal, and the reflection signal enters the signal receiver through the display screen.

In the electronic equipment that this application embodiment provided, because first reflection configuration, signal transmitter, signal receiver are the linear arrangement, and signal transmitter's signal emission face is towards the plane of reflection of first reflection configuration to can reduce the survey signal of signal transmitter transmission and directly enter into signal receiver through electronic equipment's inside diffraction, can improve the accuracy that sensor module detected the reflection signal intensity value, and then improve the accuracy that electronic equipment control display screen put out the screen or bright screen.

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 first sensor assembly in an electronic device according to an embodiment of the present disclosure.

Fig. 3 is a schematic structural diagram of a second sensor assembly in an electronic device according to an embodiment of the present disclosure.

Fig. 4 is a schematic structural diagram of a third sensor assembly in an electronic device according to an embodiment of the present disclosure.

Fig. 5 is a schematic diagram of a fourth structure of a sensor assembly in an electronic device according to an embodiment of the present application.

Fig. 6 is a schematic structural diagram of a fifth structure of a sensor assembly in an electronic device according to an embodiment of the present application.

Fig. 7 is a schematic structural diagram of a sixth structure of a sensor assembly in an electronic device according to an embodiment of the present application.

Fig. 8 is a schematic structural diagram of a seventh structure of a sensor assembly in an electronic device according to an embodiment of the present application.

Fig. 9 is an eighth structural schematic diagram of a sensor assembly in an electronic device according to an embodiment of the present application.

Fig. 10 is a schematic diagram illustrating a positional relationship between a signal transmitter and a signal receiver in an electronic device according to an embodiment of the present application.

Fig. 11 is a schematic diagram illustrating another positional relationship between a signal transmitter and a signal receiver in an electronic device according to an embodiment of the present disclosure.

Fig. 12 is a schematic diagram illustrating another position relationship between a signal transmitter and a signal receiver in an electronic device according to an embodiment of the present application.

Fig. 13 is a schematic diagram of a ninth structure of a sensor assembly in an electronic device according to an embodiment of the present application.

Fig. 14 is another schematic structural diagram of an electronic device according to an embodiment of the present application.

Fig. 15 is a schematic diagram of a tenth structure of a sensor assembly in an electronic device according to an embodiment of the present application.

Fig. 16 is an eleventh structural schematic diagram of a sensor assembly in an electronic device according to an embodiment of the present application.

Fig. 17 is a schematic diagram of a twelfth structure of a sensor assembly in an electronic device according to an embodiment of the present application.

Fig. 18 is a schematic diagram of a thirteenth structure of a sensor assembly in an electronic device according to an embodiment of the present application.

Fig. 19 is a fourteenth structural diagram of a sensor assembly in an electronic device according to an embodiment of the present application.

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.

In some embodiments, the present application provides an electronic device. The electronic device can be a smart phone, a tablet computer and the like. Referring to fig. 1, the electronic device 100 includes a cover plate 10, a display screen 21, a circuit board 30, a housing 40, and a sensor assembly 50.

Wherein the cover plate 10 is mounted to the display screen 21 to cover the display screen 21. 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.

The display screen 21 is mounted on the housing 40 to form a display surface of the electronic apparatus 100. The display 21 is a front case of the electronic device 100, and forms an accommodating space with the housing 40 for accommodating other electronic components of the electronic device 100. Meanwhile, the display screen 21 forms a display surface of the electronic apparatus 100 for displaying information such as images, texts, and the like.

The circuit board 30 is mounted inside the housing 40. For example, the circuit board 30 may be mounted in the receiving 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. The circuit board 30 may be provided with functional components such as a camera, a processor, and the like, and a sensor component 50. Meanwhile, the display screen 21 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 electric signal to the display screen 21 to control the display screen 21 to display information.

The housing 40 is used to form the outer contour of the electronic device 100. The housing 40 may be made of plastic or metal. The housing 40 may be integrally formed.

In some embodiments, as shown in FIG. 2, the sensor assembly 50 is disposed on the circuit board 30, the sensor assembly 50 being located on a side of the circuit board 30 facing the display screen 21.

It will be appreciated that the sensor assembly 50 is disposed on the inside of the display screen 21. Here, the inner side refers to a side where the display screen 21 is not visible when viewed from the outside of the electronic apparatus 100. That is, the sensor assembly 50 is located inside the electronic device 100.

Sensor assembly 50 may include, among other things, a signal transmitter 501 and a signal receiver 502. The signal transmitter 501 and the signal receiver 502 may be spaced apart on the circuit board 30.

It is understood that the signal transmitter 501 is disposed inside (i.e., below) the display screen 21 and the signal receiver 502 is disposed inside (i.e., below) the display screen 21. The inner side (or lower side) refers to the side (or side) of the electronic device 100 where the display screen 21 is not visible when viewed from the outside

The signal transmitter 501 has a signal transmitting surface 5010, and the signal transmitter 501 transmits the probe signal through the signal transmitting surface 5010. When the detection signal is an optical signal, the signal emitting surface 5010 is a light emitting surface.

The first included angle α between the signal emitting surface 5010 and the plane of the circuit board 30 is acute, that is, the first included angle α has an angle value between 0 degrees and 90 degrees.

It will be appreciated that the signal transmitter 501 may be angled towards the signal receiver 502 at an angle, i.e., an angle of α, relative to conventional designs.

The included angle between the signal emitting face 5010 and the plane of the circuit board 30 is the minimum positive angle formed by the intersection of the signal emitting face 5010 and the plane of the circuit board 30.

The signal emitter 501 emits a detection signal a through the signal emitting surface 5010 (in practical applications, the signal emitter 501 emits the detection signal a according to its signal emitting frequency interval), the detection signal a is transmitted to the outside through the display 21, and the detection signal a is reflected by an external object 200 (e.g., a user's face) to generate a reflection signal B. The reflected signal B passes through the display screen 21 and enters the signal receiver 502. The signal receiver 502 may detect the received reflected signal strength value. Accordingly, the electronic device 100 can control the display screen 21 to turn off or turn on according to the strength value of the reflected signal detected by the signal receiver 502.

In some embodiments, to further improve the accuracy of the detection by the sensor assembly 50, the first included angle α between the signal emitting face 5010 and the plane of the circuit board 30 may have an angular value between 40 degrees and 90 degrees.

Through practical tests, when the angle value of the first included angle α is between 40 degrees and 90 degrees, the signal receiver 502 receives the detection signal most effectively, and most of the detection signal emitted by the signal emitter 501 can reach the signal receiver 502 through reflection.

In some embodiments, referring to fig. 3, a filler 60 is disposed in the gap between the signal emitter 501 and the circuit board 30, and the filler 60 may be made of foam, which may make the fixation of the signal emitter 50 and the circuit board 30 more stable.

In some embodiments, referring to fig. 4, the signal emitting face 5010 of the signal emitter 501 may be a beveled face.

Because the included angle between the signal emitting surface of the signal emitter 501 and the plane where the circuit board is located is an acute angle, that is, the signal emitting surface 5010 of the signal emitter 501 inclines to the direction of the signal receiver 502 by a certain angle, the signal emitted by the signal emitter 501 can more easily or more reach the signal receiver 502, the signal intensity received by the signal receiver is enhanced, and further the detection accuracy of the sensor assembly 50 is improved, so that the accuracy of controlling the display screen state, such as screen turning off or screen turning on, by the electronic device 100 is improved.

In addition, the emission direction of the detection signal a emitted by the signal emitter 501 is not perpendicular to the display screen 21, that is, the emission direction of the signal is staggered from the light emitting direction of the display screen 21, so that the influence or interference of the detection signal on the display of the display screen 21 can be reduced, and the display effect of the display screen 21 is improved.

In some embodiments, as shown in FIG. 5, the signal receiver 502 has a signal receiving surface 5020. the signal receiving surface 5020 is configured to receive the reflected signal B. where the second angle β between the signal receiving surface 5020 and the plane of the circuit board 30 is an acute angle, i.e., the second angle β has a value between 0 and 90 degrees.

It will be appreciated that the signal receiver 502 may be angled β toward the signal emitter 501 relative to conventional designs, i.e., the signal emitter 501 is angled toward the signal receiver 502.

In some embodiments, referring to fig. 6, the gap between the signal receiver 502 and the circuit board 30 is provided with a filler 70, and the filler 70 may be a material such as foam. This may make the fixation of the signal receiver 502 to the circuit board 30 more stable.

In some embodiments, to further improve the accuracy of the detection by the sensor assembly 50, the second angle β between the signal receiver 502 and the plane of the circuit board 30 may have a value between 40 degrees and 90 degrees.

After many practical tests, when the angle value of the second included angle β is between 40 degrees and 90 degrees, the signal receiver 502 can receive the detection signal most effectively, and the signal receiver 502 can receive most of the reflected detection signal.

In some embodiments, the first angle α and the second angle β may be equal, that is, the signal emitter 501 and the signal receiver 502 are tilted toward each other by the same angle.

Because the signal emitter 501 and the signal receiver 502 incline oppositely by the same angle, the detection signal emitted by the signal emitter 501 can be prevented from reaching the signal receiver 502 due to the undersized reflection angle, meanwhile, the influence of diffraction of the detection signal on the inner side of the display screen 21 is reduced, the approaching detection accuracy of the sensor assembly 50 is improved, the accuracy of state control of the display screen is further improved, and the space design and layout of the electronic equipment 100 are facilitated.

In some embodiments, the values of the first included angle α and the second included angle β may not be equal, and after a plurality of practical tests, in a case that the values of the first included angle α and the second included angle β may not be equal, the angle difference between the second included angle β and the first included angle α is between 0 degree and 15 degrees.

In some embodiments, the second angle β is greater than the first angle α, such as α and β at 60, with an angular difference of 10 ° between 0 ° and 15 °.

In some embodiments, the second angle β is smaller than the first angle α, such as α ═ 70 °, β ═ 58 °, where the difference between the angles is 12 ° between 0 ° and 15 °.

In some embodiments, referring to fig. 7, the signal receiving face 5020 of the signal receiver 502 can be a bevel.

Because the signal emitting surface 5010 of the signal emitter 501 and the signal receiving surface 5020 of the signal receiver 502 incline oppositely by different angles and the angle difference is within a certain range, the detection signal emitted by the signal emitter 501 can reach the signal receiver 502 more, and meanwhile, the influence of diffraction of the detection signal on the inner side of the display screen 21 (such as full scale of the signal receiver 502 caused by diffraction) can be reduced, the approaching detection accuracy of the sensor assembly 50 is improved, and the accuracy of state control of the display screen is further improved.

Considering that the tilt of the signal emitting face 5010 of the signal emitter 501 causes the detection signal to diffract directly into the signal receiver 502 through the inner side of the display screen 21, the signal receiver 502 may be at full scale, resulting in inaccurate signal detection.

In some embodiments, to improve the accuracy of signal detection, a protrusion may be disposed between the signal emitter 501 and the signal receiver 502 to block or isolate the diffraction signal, thereby improving the accuracy of signal detection of the sensor assembly 50. Referring to fig. 8, the circuit board 30 has a protrusion 301 thereon, and the signal transmitter 501 and the signal receiver 502 are respectively located at two sides of the protrusion 301.

In some embodiments, one end of the protrusion 301 may extend to a side of the display screen 21 facing the sensor assembly 50. This improves the isolation of the diffraction signal.

In some embodiments, the signal emitter 501 is an infrared emitter for emitting infrared rays. The signal receiver 502 is an infrared receiver for receiving infrared rays.

In some embodiments, the Display 21 may be a Liquid Crystal Display (LCD) or Organic Light-Emitting Diode (OLED) Display, or the like. When the display screen 21 is a liquid crystal display screen, the display screen 21 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 21 is an organic light emitting diode display panel, the display panel 21 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.

In some embodiments, referring to FIG. 9, the sensor assembly 50 may further include an ambient light sensor 503 disposed on one side of the display screen 21, it being understood that the ambient light sensor 503 is located on the inner side of the display screen 21. The ambient light sensor 503 is used for sensing an external ambient light signal. The ambient light sensor 503 may transmit the light-sensing information to the processor, which controls the brightness of the display screen 21 based on the light-sensing information.

Therein, the photosensitive surface of the ambient light sensor 503 may face the display screen 21, specifically, a display area of the display screen 21. The ambient light signal enters the ambient light sensor 503 through the display screen 21.

In some embodiments, referring to fig. 10, the sensor assembly 50 includes a signal transmitter 501 and a signal receiver 502. The signal transmitter 501 and the signal receiver 502 are spaced apart from each other. The distance d between the signal transmitter 501 and the signal receiver 502 is 2 to 14 mm. It is understood that the distance is the distance between the geometric center of the signal transmitter 501 and the geometric center of the signal receiver 502. The signal transmitter 501 and the signal receiver 502 are arranged at a distance from each other, so that the isolation between the signal transmitter 501 and the signal receiver 502 can be improved, and the influence of the signal transmitted by the signal transmitter 501 on the signal receiver 502 can be reduced.

In some embodiments, referring to fig. 11, the signal transmitter 501 and the signal receiver 502 are packaged as a chip 25.

In some embodiments, referring to fig. 12, the sensor assembly 50 includes a signal transmitter 501, a signal receiver 502, and an ambient light sensor 503. The ambient light sensor 503 is used to detect the intensity of ambient light. The electronic device 100 may adjust the brightness of the display screen 21 according to the intensity of the ambient light detected by the ambient light sensor 503. Wherein, the signal transmitter 501, the signal receiver 502 and the ambient light sensor 503 can be packaged into a chip 26.

The signal transmitter 501, the signal receiver 502, and the ambient light sensor 503 are disposed at a distance from each other. The distance d between the signal transmitter 501 and the signal receiver 502 is 2 to 14 mm. It is understood that the distance is the distance between the geometric center of the signal transmitter 501 and the geometric center of the signal receiver 502. The signal emitter 501, the signal receiver 502 and the ambient light sensor 503 are arranged at intervals, so that the isolation among the signal emitter 501, the signal receiver 502 and the ambient light sensor 503 can be improved, and the influence of the signal emitted by the signal emitter 501 on the signal receiver 502 and the ambient light sensor 503 can be reduced.

In some embodiments, referring to fig. 13, a light shielding layer 210 is disposed on a side of the display screen 21 facing the sensor assembly 50, and a through hole 213 is formed in the light shielding layer 210, and the through hole 213 allows a light signal, a sound wave signal, or the like to pass through. The light-shielding layer 210 is used to hide the internal structure of the electronic device 100, so that a user can see the internal electronic components of the electronic device 100 through the display screen 21.

In some embodiments, the light-shielding layer 210 may be a thin layer structure made of foam or steel.

The signal transmitter 501 is configured to transmit a probe signal a outwards. The detection signal a is transmitted to the outside through the through hole 213 and the display screen 21. When the detection signal a contacts an external object 200 (e.g., a user's face), a reflected signal B is generated. The reflected signal B enters the signal receiver 502 through the display screen 21 and the through hole 213.

In some embodiments, as shown in FIG. 14, the display screen 21 includes a display area 215 and a non-display area 216. Wherein the display area 215 performs the display function of the display screen 21 for displaying information. The non-display area 216 does not display information. The display screen 21 may include a plurality of non-display regions 216 spaced apart from one another. For example, non-display regions 216 are provided at the top and bottom of the display screen 21, respectively. The non-display area 216 may be used to set up functional components such as a camera, a receiver, and a fingerprint module.

The through hole 213 provided in the light shielding layer 210 of the display screen 21 is located in the display area 215 of the display screen 21. That is, the orthographic projection of the through hole 213 on the display screen 21 is located within the display area 215. Through the through hole 213, the sensor assembly 50 can realize the proximity sensing function of the electronic device 100, so that a through hole does not need to be separately provided in the non-display area of the display screen 21.

In some embodiments, the through hole 213 is a circular hole. The through hole 213 has a diameter of 2 to 4 mm. In other embodiments, the through hole 213 may be a square hole, an elliptical hole, or other shapes.

In some embodiments, as shown in FIG. 15, a sensor assembly 50 is disposed on the circuit board 30. The sensor assembly 50 is located on a side of the circuit board 30 facing the display screen 21. The sensor assembly 50 includes a signal transmitter 501 and a signal receiver 502. The signal transmitter 501 is used for transmitting a detection signal, and the signal receiver 502 is used for receiving a reflected signal. The detection signal and the reflection signal may be optical signals such as infrared rays, or acoustic signals such as ultrasonic waves.

The signal emitter 501 has a signal emitting surface 5010, and a first included angle α between the signal emitting surface 5010 and the plane where the circuit board 30 is located is an acute angle, that is, the angle range of the first included angle between the signal emitting surface 5010 and the plane where the circuit board 30 is located is 0 to 90 degrees.

The circuit board 30 is provided with a first reflective structure 302. The first reflecting structure 302, the signal emitter 501 and the signal receiver 502 are arranged in a straight line. The first reflective structure 302 has a reflective surface 3020. The reflective surface 3020 faces the signal emitter 501. Wherein the signal emitting face 5010 of the signal emitter 501 faces the reflecting face 3020 of the first reflecting structure 302. In some embodiments, the reflective surface 3020 is perpendicular to the circuit board 30.

The signal emitter 501 emits a detection signal a, and the detection signal a is reflected by the first reflecting structure 302 and then transmitted to the outside through the display screen 21. After the detection signal a contacts an external object (e.g., a user's face) 200, it is reflected to form a reflection signal B, and the reflection signal B enters the signal receiver 502 through the display screen 21. The signal receiver 502 may detect the received reflected signal strength value. Therefore, the electronic device 100 can determine whether the electronic device 100 is close to or away from the external object 200 according to the intensity value of the reflected signal, so as to control the display screen 21 to turn off or turn on the screen.

Since the first reflecting structure 302, the signal emitter 501 and the signal receiver 502 are arranged in a straight line, the signal emitting surface 5010 of the signal emitter 501 faces the reflecting surface 3020 of the first reflecting structure 302, i.e., the signal emitting surface 5010 of the signal emitter 501 faces away from the signal receiver 502. Therefore, the detection signal emitted by the signal emitter 501 can be reduced from directly entering the signal receiver 502 through diffraction inside the electronic device 100, the accuracy of the sensor assembly 50 for detecting the intensity value of the reflection signal can be improved, and the accuracy of the electronic device 100 for controlling the display screen to be turned off or turned on can be improved.

In some embodiments, as shown in fig. 16, a second reflective structure 303 is also disposed on the circuit board 30. The first reflecting structure 302, the signal emitter 501, the signal receiver 502 and the second reflecting structure 303 are arranged in a straight line. The second reflective structure 303 has a reflective surface 3030. The reflective surface 3030 faces the signal receiver 502. In some embodiments, the reflective surface 3030 is perpendicular to the circuit board 30.

After the reflected signal B passes through the display screen 21, it is reflected by the reflecting surface 3030 of the second reflecting structure 303 and enters the signal receiver 502.

In some embodiments, as shown in FIG. 16, the signal receiver 502 has a signal receiving surface 5020. A second angle β between the signal receiving surface 5020 and the plane of the circuit board 30 is acute, wherein the signal receiving surface 5020 of the signal receiver 502 faces a reflecting surface 3030 of the second reflecting structure 303.

Because the signal receiving surface 5020 of the signal receiver 502 faces the reflecting surface 3030 of the second reflecting structure 303, that is, the signal receiving surface 5020 of the signal receiver 502 faces away from the signal emitter 501, the detection signal emitted by the signal emitter 501 can be further reduced from directly entering the signal receiver 502 through diffraction inside the electronic device 100, the accuracy of detecting the intensity value of the reflection signal by the sensor assembly 50 can be improved, and the accuracy of controlling the display screen to be turned off or turned on by the electronic device 100 can be further improved.

In some embodiments, the first included angle α is equal to the second included angle β, e.g., the first included angle α and the second included angle β are both 60 degrees.

In some embodiments, as shown in fig. 17, the display screen 21 includes a display layer 211 and a light shielding layer 210 which are stacked. The light shielding layer 210 is located on a side of the display screen 21 facing the circuit board 30. The display layer 211 is used for performing a display function of the display screen 21, and displaying information such as images and texts. The light-shielding layer 210 is used to hide the internal structure of the electronic device 100, so that a user can see the internal electronic components of the electronic device 100 through the display screen 21.

The light-shielding layer 210 is provided with a through hole 213. After being reflected by the reflection surface 3020 of the first reflection structure 302, the detection signal a sequentially passes through the through hole 213 and the display layer 211 and is transmitted to the outside. The detection signal is reflected by the external object 200 to form a reflection signal B, which sequentially passes through the display layer 211 and the through hole 213, and then enters the signal receiver 502.

In some embodiments, the display layer 211 includes a display region 2110 and a non-display region 2111. The display area 2110 is used for displaying information. The non-display region 2111 does not display information. It is understood that the display layer 211 may include only the display region 2110 and not the non-display region 2111. The orthographic projection of the through hole 213 on the display layer 211 is located in the display area 2110. That is, the through hole 213 is located below the display region 2110 of the display layer 211.

In some embodiments, the through hole 213 may be filled with a light transmissive material, such as an optical lens.

In some embodiments, as shown in fig. 18, the light-shielding layer 210 may be provided with a first through hole 214 and a second through hole 215. The first through hole 214 and the second through hole 215 are arranged at intervals. The detection signal a is reflected by the reflection surface 3020 of the first reflection structure 302, and then sequentially transmitted to the outside through the first through hole 214 and the display layer 211. The reflected signal B formed by the detection signal reflected by the external object 200 sequentially passes through the display layer 211 and the second through hole 215, and then enters the signal receiver 502.

In some embodiments, the display layer 211 includes a display area. Orthographic projections of the first through hole 214 and the second through hole 215 on the display layer 211 are located in a display area of the display layer 211.

In some embodiments, the first and second through

holes

214 and 215 may be filled with a light transmissive material.

In some embodiments, as shown in fig. 19, the sensor assembly 50 further includes an ambient light sensor 503. The ambient light sensor 503 is disposed at a distance from the signal transmitter 501 and the signal receiver 502. The ambient light sensor 503 is used to detect the intensity of ambient light. Thus, the electronic device 100 may adjust the brightness of the display screen 21 according to the intensity of the ambient light detected by the ambient light sensor 503.

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 display screen and a circuit board arranged on one side of the display screen;

A sensor assembly is provided on the circuit board, the sensor assembly is located on the side of the circuit board facing the display screen, and the sensor assembly includes a signal transmitter and a signal receiver;

The signal transmitter has a signal emission surface, the first included angle between the signal emission surface and the plane where the circuit board is located is an acute angle, and the signal emission surface faces the reflection surface of the first reflection structure;

The signal transmitter transmits a detection signal, the detection signal is reflected by the reflective surface of the first reflective structure and transmitted to the outside through the display screen, and the detection signal is reflected by an external object to form a reflection signal, the The reflected signal enters the signal receiver through the display screen;

Wherein, the signal emitting surface of the signal transmitter is away from the signal receiver, so as to reduce the detection signal directly entering the signal receiver through the internal diffraction of the electronic device.

2 . The electronic device according to claim 1 , wherein a second reflection structure is further provided on the circuit board, a reflection surface of the second reflection structure faces the signal receiver, and the first reflection structure is oriented toward the signal receiver. 3 . The structure, the signal transmitter, the signal receiver, and the second reflection structure are arranged in a straight line;

The reflected signal enters the signal receiver after passing through the display screen and being reflected by the reflecting surface of the second reflecting structure.

3 . The electronic device according to claim 2 , wherein the signal receiver has a signal receiving surface, and the second included angle between the signal receiving surface and the plane where the circuit board is located is an acute angle, and the The signal receiving surface faces the reflecting surface of the second reflecting structure.

4. The electronic device according to claim 3, wherein the first included angle is equal to the second included angle.

5 . The electronic device according to claim 1 , wherein the display screen comprises a stacked display layer and a light shielding layer, and the light shielding layer is located on the side of the display screen facing the circuit board. 6 . On one side, the light-shielding layer is provided with a through hole;

The detection signal is reflected by the reflective surface of the first reflective structure and transmitted to the outside through the through hole and the display layer in sequence, and the reflected signal enters through the display layer and the through hole in sequence. the signal receiver.

6 . The electronic device according to claim 5 , wherein the display layer comprises a display area, and the orthographic projection of the through hole on the display layer is located in the display area. 7 .

7 . The electronic device according to claim 5 , wherein the through hole is filled with a light-transmitting material. 8 .

8 . The electronic device according to claim 1 , wherein the display screen comprises a stacked display layer and a light shielding layer, and the light shielding layer is located on the side of the display screen facing the circuit board. 9 . On one side, the light shielding layer is provided with a first through hole and a second through hole at intervals;

The detection signal is reflected by the reflection surface of the first reflection structure and transmitted to the outside through the first through hole and the display layer in sequence, and the reflection signal is transmitted through the display layer and the second reflection layer in sequence. through holes into the signal receiver.

9 . The electronic device according to claim 8 , wherein the display layer comprises a display area, and the orthographic projections of the first through hole and the second through hole on the display layer are both located in the display layer. 10 . Display area.

10 . The electronic device according to claim 1 , wherein the sensor assembly further comprises an ambient light sensor, and the ambient light sensor is used to detect ambient light intensity. 11 .

11. The electronic device according to any one of claims 1 to 4, further comprising a casing, the display screen is mounted on the casing, and the display screen and the casing form an accommodation space, and the circuit board is installed in the receiving space.