CN107948422A - electronic device - Google Patents

Abstract

The embodiment of the application provides an electronic device; the electronic device comprises a display screen, a circuit board and a sensor assembly arranged on the circuit board; the sensor assembly and the circuit board are positioned on one side of the display screen, and the sensor assembly comprises a signal transmitter and a signal receiver; the signal emitter is provided with a signal emitting surface, and a first included angle between the signal emitting surface and the plane where the circuit board is located is an acute angle; the signal transmitter transmits a detection signal, the detection signal is 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. The scheme can improve the accuracy of the electronic equipment in controlling the state of the display screen.

Description

electronic device

technical field

The present application relates to the technical field of electronic equipment, and in particular to an electronic device.

Background technique

With the development of communication technology, electronic devices such as smartphones are becoming more and more popular. During the use of the electronic device, such as during a call, in order to avoid misoperation of the user on the electronic device, when the user's face approaches the electronic device for a certain distance, the electronic device will automatically turn off the screen.

Generally, the electronic device detects the approach and distance of the user's face through a proximity sensor, and controls the state of the display screen of the electronic device, such as turning off the screen or brightening the screen, according to the detected data.

Contents of the invention

An embodiment of the present application provides an electronic device, which can improve the accuracy of display screen state control.

An embodiment of the present application provides an electronic device, including: a display screen, a circuit board, and a sensor assembly disposed on the circuit board;

The sensor assembly and the circuit board are located on one side of the display screen, and the sensor assembly includes a signal transmitter and a signal receiver;

The signal transmitter has a signal transmitting surface, and the first angle between the signal transmitting surface and the plane where the circuit board is located is an acute angle;

The signal transmitter emits a detection signal, and the detection signal is transmitted to the outside world through the display screen, and the detection signal is reflected by an external object to form a reflected signal, and the reflected signal enters the signal receiver through the display screen device.

In the electronic device provided in the embodiment of the present application, the angle between the signal transmitting surface of the signal transmitter and the plane where the circuit board is located is an acute angle, that is, the signal transmitting surface of the signal transmitter is inclined at a certain angle to the direction of the signal receiver, which can make the signal More signals emitted by the transmitter reach the signal receiver, which enhances the signal strength received by the signal receiver, thereby improving the detection accuracy of the sensor components, thereby improving the accuracy of electronic equipment to control the display status such as screen off or on screen sex.

Description of drawings

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

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

FIG. 2 is another schematic structural diagram of an electronic device provided by an embodiment of the present application.

FIG. 3 is a schematic diagram of a first structure of a sensing component in an electronic device provided by an embodiment of the present application.

FIG. 4 is a schematic diagram of a second structure of a sensing component in an electronic device provided by an embodiment of the present application.

FIG. 5 is a schematic diagram of a third structure of a sensing component in an electronic device provided by an embodiment of the present application.

FIG. 6 is a schematic diagram of a fourth structure of a sensing component in an electronic device provided by an embodiment of the present application.

FIG. 7 is a schematic diagram of a fifth structure of a sensing component in an electronic device provided by an embodiment of the present application.

FIG. 8 is a schematic diagram of a sixth structure of a sensing component in an electronic device provided by an embodiment of the present application.

FIG. 9 is a schematic diagram of a seventh structure of a sensing component in an electronic device provided by an embodiment of the present application.

FIG. 10 is a schematic diagram of an eighth structure of a sensing component in an electronic device provided by an embodiment of the present application.

FIG. 11 is a schematic diagram of a positional relationship between a signal transmitter and a signal receiver according to an embodiment of the present application.

FIG. 12 is a schematic diagram of another positional relationship between the signal transmitter and the signal receiver provided by the embodiment of the present application.

Fig. 13 is another schematic diagram of the positional relationship between the signal transmitter and the signal receiver provided by the embodiment of the present application.

FIG. 14 is a schematic diagram of a ninth structure of a sensing component in an electronic device provided by an embodiment of the present application.

FIG. 15 is another schematic structural diagram of 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 in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as limiting the application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of said features. In the description of the present application, "plurality" means two or more, unless otherwise specifically defined.

In the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected, or electrically connected, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction of two components relation. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific situations.

In this application, unless otherwise expressly specified and limited, a first feature being "on" or "under" a second feature may include direct contact between the first and second features, and may also include the first and second features Not in direct contact but through another characteristic contact between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

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

An embodiment of the present application provides an electronic device, and the electronic device may be an electronic device or the like.

In some embodiments, the present application provides an electronic device. The electronic device may be a smart phone, a tablet computer or the like. Referring to FIG. 1 , an 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 installed on 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 materials such as sapphire.

The display screen 21 is mounted on the casing 40 to form a display surface of the electronic device 100 . The display screen 21 serves as the front shell of the electronic device 100 and forms a closed space with the casing 40 for accommodating other electronic components of the electronic device 100 . Meanwhile, the display screen 21 forms a display surface of the electronic device 100 for displaying information such as images and texts.

The circuit board 30 is installed inside the casing 40 to accommodate the circuit board 30 in the above-mentioned closed space. The circuit board 30 may be a main board of the electronic device 100 . A grounding point is provided on the circuit board 30 to realize the grounding of the circuit board 30 . Functional components such as a camera, a processor, and a sensor component 50 may be integrated on the circuit board 30 . Meanwhile, the display screen 21 may be electrically connected to the circuit board 30 .

In some embodiments, a display control circuit is disposed on the circuit board 30 . The display control circuit outputs electrical signals to the display screen 21 to control the display screen 21 to display information.

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

In some embodiments, the display screen 21 in the electronic device 100 can be displayed in full screen. That is, the display screen 21 only includes a display area and does not include a non-display area, as shown in FIG. 2 .

In some embodiments, as shown in FIG. 3 , the sensor component 50 is disposed on the circuit board 30 , and the sensor component 50 is located at one side of the display screen 21 .

It can be understood that the sensor assembly 50 is disposed inside the display screen 21 . Wherein, the inner side refers to the side where the display screen 21 is not visible when viewed from the outside of the electronic device 100 . That is, the sensor assembly 50 is located inside the electronic device 100 .

Wherein, the sensor component 50 may include a signal transmitter 501 and a signal receiver 502 . The signal transmitter 501 and the signal receiver 502 may be arranged on the circuit board 30 at intervals.

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

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

The 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 value of the first included angle α is between 0° and 90°.

It can be understood that: relative to the conventional design, the signal transmitter 501 may be inclined toward the signal receiver 502 at a certain angle, ie an angle α.

Wherein, the angle between the signal emitting surface 5010 and the plane where the circuit board 30 is located is the minimum positive angle formed by the intersection of the signal emitting surface 5010 and the plane where the circuit board 30 is located.

The signal transmitter 501 transmits the detection signal A to the outside through the signal transmission surface 5010 (in practical applications, the signal transmitter 502 transmits the detection signal A to the outside according to its signal transmission frequency interval), and the detection signal A is transmitted to the outside through the display screen 21, After the detection signal A passes through the external object 200 (for example, the user's face), a reflection signal B is generated. The reflected signal B enters the signal receiver 502 through the display screen 21 .

In some embodiments, in order to further improve the detection accuracy of the sensor assembly 50 , the angle value of the first included angle α between the signal emitting surface 5010 and the plane where the circuit board 30 is located may be between 40 degrees and 90 degrees.

After several actual tests, when the angle value of the first included angle α is between 40 degrees and 90 degrees, the signal receiver 502 has the best reception effect on the detection signal, and most of the detection signals emitted by the signal transmitter 501 are reflected A signal receiver 502 can be reached.

In some embodiments, referring to FIG. 4, a filler 60 is provided in the gap between the signal transmitter 501 and the circuit board 30, and the filler 60 can be a material such as foam, so that the signal transmitter 50 and the circuit board The fixation of 30 is more stable.

In some embodiments, referring to FIG. 5 , the signal transmitting surface 5010 of the signal transmitter 501 may be a slope.

Because the angle between the signal transmitting surface of the signal transmitter 501 and the plane where the circuit board is located is an acute angle, that is, the signal transmitting surface 5010 of the signal transmitter 501 is inclined at a certain angle to the direction of the signal receiver 502, which can make the signal transmitter 501 The transmitted signal reaches the signal receiver 502 more easily or more often, which enhances the signal strength received by the signal receiver, thereby improving the detection accuracy of the sensor component 50, thereby improving the electronic device 100 to control the status of the display screen such as screen off or Bright screen accuracy.

In addition, the detection signal transmission direction of the signal transmitter 501 is not perpendicular to the display screen 21, that is, the signal transmission direction is staggered from the light output direction of the display screen 21, thereby reducing the impact or interference of the detection signal on the display screen 21, and improving the display screen 21. 21 display effect.

In some embodiments, as shown in FIG. 6 , the signal receiver 502 has a signal receiving surface 5020 for receiving the detection signal emitted by the signal transmitter 501 . Wherein, the second included angle β between the signal receiving surface 5020 and the plane where the circuit board 30 is located is an acute angle. That is, the angle value of the second included angle β is between 0 degrees and 90 degrees.

It can be understood that, relative to the conventional design, the signal receiver 502 may be tilted toward the signal transmitter 501 by a certain angle β. That is, the signal transmitter 501 and the signal receiver 502 are inclined at a certain angle.

In some embodiments, referring to FIG. 7 , fillers 70 are provided in the gap between the signal receiver 502 and the circuit board 30 , and the fillers 70 can be materials such as foam. This can make the fixation of the signal receiver 502 and the circuit board 30 more stable.

In some embodiments, in order to further improve the detection accuracy of the sensor assembly 50 , the angle value of the second included angle β between the signal receiver 502 and the plane where the circuit board 30 is located may be between 40 degrees and 90 degrees.

After multiple actual tests, when the angle value of the second angle β is between 40 degrees and 90 degrees, the signal receiver 502 has the best reception effect on the detection signal, and the signal receiver 502 can receive most of the reflected detection signals .

In some embodiments, the first angle α and the second angle β may be equal, that is, the signal transmitter 501 and the signal receiver 502 are inclined at the same angle.

Since the signal transmitter 501 and the signal receiver 502 are tilted at the same angle, it can avoid that the detection signal emitted by the signal transmitter 501 cannot reach the signal receiver 502 because the reflection angle is too high, and at the same time reduce the impact of the diffraction of the detection signal on the inside of the display screen 21 , improving the accuracy of the proximity detection of the sensor component 50 , thereby improving the accuracy of the state control of the display screen, and facilitating the space design and layout of the electronic device 100 .

In some embodiments, the angle values of the first included angle α and the second included angle β may not be equal. After many practical tests, in the case that the angle 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° and 15°.

In some embodiments, the angle of the second included angle β is larger than the first included angle α, for example, α=50°, β=60°, at this time, the angle difference between the two is 10° between 0° and 15° between.

In some embodiments, the second included angle β is smaller than the first included angle α, for example, α=70°, β=58°, at this time, the angle difference between the two is 12° between 0° and 15° between.

In some embodiments, referring to FIG. 8 , the signal receiving surface 5020 of the signal receiver 502 may be a slope.

Since the signal transmitting surface 5010 of the signal transmitter 501 and the signal receiving surface 5020 of the signal receiver 502 are tilted at different angles, and the angle difference is within a certain range, the detection signal emitted by the signal transmitter 501 can reach more The signal receiver 502 can also reduce the influence of the diffraction of the detection signal on the inside of the display screen 21 (such as the diffraction causes the signal receiver 502 to be full-scale), which improves the accuracy of the proximity detection of the sensor assembly 50, thereby improving the state of the display screen. control accuracy.

Considering that the inclination of the signal transmitting surface 5010 of the signal transmitter 501 will cause the detection signal to directly diffract through the inner side of the display screen 21 and enter the signal receiver 502, the signal receiver 502 will be full-scale, resulting in inaccurate signal detection.

In some embodiments, in order to improve the accuracy of signal detection, a protrusion can be provided between the signal transmitter 501 and the signal receiver 502 to block or isolate the diffraction signal, so as to improve the signal detection accuracy of the sensor assembly 50 . Referring to FIG. 9 , the circuit board 30 has a protruding portion 301 , and the signal transmitter 501 and the signal receiver 502 are respectively located on two sides of the protruding portion 301 .

In some embodiments, one end of the protrusion 301 may extend to the side of the display screen 21 facing the sensor assembly 50 . This can improve the isolation effect of the diffracted signal.

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

In some embodiments, the display screen 21 may be a liquid crystal display (Liquid Crystal Display, LCD) or an organic light-emitting diode display (Organic Light-Emitting Diode, OLED) or other type of display. 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 filter substrate, and an upper polarizer stacked in sequence. When the display screen 21 is an organic light emitting diode display screen, the display screen 21 may include structures such as a base layer, an anode, an organic layer, a conductive layer, an emission layer, and a cathode stacked in sequence.

In some embodiments, referring to FIG. 10 , the sensor assembly 50 may further include an ambient light sensor 503 disposed on one side of the display screen 21 , it can be understood that the ambient light sensor 503 is located inside the display screen 21 . The ambient light sensor 503 is used for sensing external ambient light signals. The ambient light sensor 503 can transmit the light sensing information to the processor, and the processor controls the brightness of the display screen 21 based on the light sensing information.

Wherein, the photosensitive surface of the ambient light sensor 503 may face the display screen 21 , specifically, face the display area of the display screen 21 . The external ambient light signal enters the ambient light sensor 501 through the display screen 21 .

In some embodiments, referring to FIG. 11 , the sensor assembly 50 includes a signal transmitter 501 and a signal receiver 502 . Wherein, the signal transmitter 501 and the signal receiver 502 are arranged at intervals from each other. The distance d between the signal transmitter 501 and the signal receiver 502 is 2 to 14 mm. It can be understood that the above distance is the distance between the geometric center of the signal transmitter 501 and the geometric center of the signal receiver 502 . The distance between the signal transmitter 501 and the signal receiver 502 can improve the isolation between the signal transmitter 501 and the signal receiver 502 , and reduce the impact of the signal transmitted by the signal transmitter 501 on the signal receiver 502 .

In some embodiments, referring to FIG. 12 , the signal transmitter 501 and the signal receiver 502 are packaged into a chip 25 .

In some embodiments, referring to FIG. 13 , the sensor assembly 50 includes a signal transmitter 501 , a signal receiver 502 and an ambient light sensor 503 . Wherein, the ambient light sensor 503 is used to detect the ambient light intensity. The electronic device 100 can adjust the brightness of the display screen 21 according to the ambient light intensity 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 spaced apart from each other. The distance d between the signal transmitter 501 and the signal receiver 502 is 2 to 14 mm. It can be understood that the above distance is the distance between the geometric center of the signal transmitter 501 and the geometric center of the signal receiver 502 . The distance between the signal transmitter 501, the signal receiver 502, and the ambient light sensor 503 can improve the isolation between the signal transmitter 501, the signal receiver 502, and the ambient light sensor 503, and reduce the signal pair emitted by the signal transmitter 501. The influence caused by the signal receiver 502 and the ambient light sensor 503 .

In some embodiments, referring to FIG. 14 , the side of the display screen 21 facing the sensor assembly 50 is provided with a light-shielding layer 210 , and an opening 213 is formed on the light-shielding layer 210 . The opening 213 allows signals such as light signals and sound waves to pass through. The light-shielding layer 210 is used to hide the internal structure of the electronic device 100 , preventing the user from observing 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 materials such as foam or steel sheets.

Wherein, the signal transmitter 501 is used for transmitting the detection signal A to the outside. The detection signal A is transmitted to the outside world through the opening 213 and the display screen 21 . After the detection signal A touches the external object 200 (for example, the 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 opening 213 .

In some embodiments, as shown in FIG. 15 , 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 areas 216 spaced apart from each other. For example, non-display areas 216 are respectively provided on the top and bottom of the display screen 21 . The non-display area 216 can be used to set functional components such as a camera, a receiver, and a fingerprint module.

Wherein, the opening 213 provided on the light-shielding layer 210 of the display screen 21 is located in the display area 215 of the display screen 21 . Through the opening 213 , the sensor assembly 50 can realize the proximity sensing function of the electronic device 100 , so there is no need to separately arrange openings in the non-display area of the display screen 21 .

In some embodiments, the opening 213 is a round hole. The diameter of the opening 213 is 2 to 4 mm. In some other embodiments, the opening 213 may also be a square hole, an elliptical hole and other shaped holes.

The electronic device provided by the embodiment of the present application has been introduced in detail above, and the principle and implementation of the present application are explained by using specific examples in this paper. The description of the above embodiment is only for helping the understanding of the present application. At the same time, for those skilled in the art, based on the idea of this application, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be construed as limiting the application.

Claims (10)

1. a kind of electronic device, it is characterised in that including display screen, circuit board and the sensor being arranged on the circuit board Component；

The sensor component and the circuit board are located at the side of the display screen, and the sensor component is sent out including signal Emitter and signal receiver；

The signal projector has a signal surface of emission, and the between plane where the signal surface of emission and the circuit board One angle is acute angle；

The signal projector emission detection signal, the detectable signal are transferred to the external world, the detection through the display screen Signal forms reflected signal after external object reflects, and the reflected signal is received by the display screen into the signal Device.

2. electronic device as claimed in claim 1, it is characterised in that the signal receiver has a signal receiving plane, institute The second angle between plane where stating signal receiving plane and the circuit board is acute angle.

3. electronic device as claimed in claim 2, it is characterised in that first angle is equal with second angle.

4. electronic device as claimed in claim 2, it is characterised in that the angle between second angle and first angle Difference is spent between 0 degree to 15 degree.

5. electronic device as claimed in claim 1, it is characterised in that the angle value of first angle 40 degree to 90 degree it Between.

6. electronic device as claimed in claim 1, it is characterised in that between the signal projector and the signal receiver Distance between 2 to 14 millimeters.

7. such as claim 1-6 any one of them electronic devices, it is characterised in that there is a protuberance on the circuit board, The signal projector is located at the both sides of the protuberance with the signal receiver respectively.

8. such as claim 1-6 any one of them electronic devices, it is characterised in that the display screen is towards the sensor group Part side is provided with light shield layer；The light shield layer sets perforate；

The signal projector emission detection signal, the detectable signal are transferred to outer through the perforate and the display screen Boundary, the detectable signal form reflected signal after external object reflects, and the reflected signal passes through the perforate and institute State display screen and enter the signal receiver.

9. such as claim 1-6 any one of them electronic devices, it is characterised in that the sensor component further includes ambient light Sensor, the ambient light sensor are used to sense external environment optical signal.

10. such as claim 1-6 any one of them electronic devices, it is characterised in that further include housing；The display screen, institute State circuit board and the sensor component is installed in the housing.