WO2020052494A1

WO2020052494A1 - Terminal device

Info

Publication number: WO2020052494A1
Application number: PCT/CN2019/104611
Authority: WO
Inventors: 全志毅
Original assignee: 华为技术有限公司
Priority date: 2018-09-15
Filing date: 2019-09-06
Publication date: 2020-03-19
Also published as: CN110913040A

Abstract

The present application provides a terminal device. The terminal device comprises a display screen and a transducer assembly. The display screen comprises a display region and a non-display region. The transducer assembly comprises a signal transmitter and a signal detector. The signal transmitter is located at the non-display region, and is used to transmit, at a first preset radiation intensity, a detection signal. The signal detector is located at the display region, and is used to receive a reflected signal. The distance between the signal transmitter and the signal detector is within a second preset range. The terminal device proposed in the present application has a higher screen-to-body ratio.

Description

Terminal equipment

This application claims priority from a Chinese patent application filed with the State Intellectual Property Office of China on September 15, 2018, with application number 201811077457.7, and the invention name is "a terminal device", the entire contents of which are incorporated herein by reference.

Technical field

The present application relates to the field of terminal equipment, and more particularly, to a terminal equipment.

Background technique

With the popularization and development of smart phones, in order to provide users with a better visual experience, the screen of mobile phones has become larger and larger. However, considering the characteristics of the portability of the mobile phone, it is unlikely to increase the screen of the mobile phone endlessly.

Therefore, how to increase the screen ratio of mobile phones has become an urgent technical issue.

Summary of the Invention

The application provides a terminal device and a method for controlling the terminal device. The screen area of the terminal device provided in this application is relatively large.

In a first aspect, the present application provides a terminal device including: a display screen and a sensor component; the display screen includes a display area and a non-display area; the sensor component includes a signal transmitter and a signal detector; and the signal transmission Transmitter located in the non-display area for transmitting a detection signal with a first preset radiation intensity; the signal detector located in the display area for receiving a reflected signal; the signal transmitter and the signal detection The distance between the devices is in a second preset range.

In this terminal device, since the signal detector is located in the display area of the display screen, the signal detector no longer occupies the non-display area of the display screen, which can reduce the area of the non-display area of the display screen and increase the screen ratio of the terminal device.

In some possible implementation manners, the signal detector is capable of receiving a reflection signal of the detection signal.

In some possible implementation manners, the reflected signal includes a reflected signal incident from outside the display screen into the display screen.

In some possible implementation manners, the first preset radiation intensity is greater than 7 milliwatts per sphere.

In some possible implementation manners, the first preset radiation intensity is greater than or equal to 6 milliwatts per sphere.

In some possible implementation manners, the first preset radiation intensity is greater than 4 milliwatts per sphere.

In some possible implementation manners, the second preset range is greater than 2 mm and less than or equal to 6 mm.

In some possible implementation manners, the terminal device further includes: a circuit board, and the signal transmitter and the signal detector are fixed on the circuit board.

In some possible implementation manners, the terminal device further includes: a light shielding layer, the light shielding layer is disposed between the display screen and the signal detector.

In some possible implementation manners, the terminal device further includes a through hole, the light shielding layer is provided with a through hole, and the signal detector is located within a range of the through hole.

In some possible implementations, the centers of the signal transmitter and the signal detector are on a straight line.

In some possible implementation manners, the first preset radiation intensity and the second preset threshold are such that a signal-to-noise ratio of the sensor component is not less than a third preset threshold.

Optionally, the third preset threshold is not less than 5.

In a second aspect, the present application provides a method for controlling a terminal device. The method includes: acquiring a first value, the first value being an infrared light detected by an infrared light detector of the terminal device when the infrared light emitted by the infrared light transmitter of the terminal device is not reflected by an external object Energy value of light; obtaining a second value, the second value is infrared light detected by an infrared light detector of the terminal device when infrared light emitted by the infrared light transmitter of the terminal device is reflected by an external object Control the terminal device to turn off the screen or light up the screen according to the second value and the first value.

In this method, because the first value is the energy value of the light actually detected by the infrared light detector when the light emitted by the infrared light transmitter of the terminal device is not reflected by an external object, the terminal device is controlled to turn off the screen or The accuracy of lighting the screen can be higher.

In some possible implementation manners, the controlling the terminal device to turn off the screen or light up the screen according to the second value and the first value includes: controlling the terminal device to turn off the screen or light up the screen according to a third value, The third value is a difference between the second value and the first value.

In some possible implementation manners, controlling the terminal device to turn off the screen or lighting the screen according to a third value includes: controlling the terminal device to turn off the screen when the third value is greater than or equal to a first threshold; When the third value is less than or equal to the second threshold, controlling the terminal device to light up the screen.

In some possible implementation manners, the terminal device is a terminal device in the first aspect or in any possible implementation manner of the first aspect.

The terminal device provided in the present application, because the signal detector is set on the display area of the display screen, so that the signal detector no longer occupies the non-display area of the display screen, the area of the non-display area of the display screen can be reduced, and the Screen ratio.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic structural diagram of a terminal device.

FIG. 2 is a schematic structural diagram of a terminal device according to an embodiment of the present application.

FIG. 3 is a schematic structural diagram of a proximity sensor according to an embodiment of the present application.

FIG. 4 is a schematic structural diagram of a terminal device according to another embodiment of the present application.

FIG. 5 is a schematic structural diagram of a display screen of a terminal device applicable to an embodiment of the present application.

detailed description

The technical solutions in this application will be described below with reference to the drawings.

The technical solutions of the embodiments of the present application can be applied to various terminal devices configured with a proximity sensor. Terminal equipment can also be called user equipment, which can be mobile phones, telephone watches, tablet computers, notebook computers, personal digital assistant (PDA) equipment, digital multimedia players, etc., and is not limited to communication terminals.

In addition, in the embodiments of the present application, the terminal device may also be a terminal device in an Internet of Things (IoT) system. The IoT is an important part of the development of future information technology. Its main technical feature is to pass items through communication technology. It is connected to the network to realize the intelligent network of human-machine interconnection and physical interconnection.

FIG. 1 shows a schematic diagram of an example of the terminal device. As shown in FIG. 1, the terminal device 100 may include the following components.

A. RF circuit 110

The RF circuit 110 may be used to receive and send signals during the transmission and reception of information or during a call. In particular, the downlink information of the base station is received and processed by the processor 180; in addition, the uplink data of the design is transmitted to the base station. Generally, the RF circuit includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier (LNA), a duplexer, and the like. In addition, the RF circuit 110 can also communicate with a network and other devices through wireless communication. The wireless communication can use any communication standard or protocol, including but not limited to wireless local area networks (WLAN) global mobile system (GSM) system, code division multiple access (Code Division Multiple Access) (CDMA) system, wideband code division multiple access (WCDMA) system, general packet radio service (GPRS), long term evolution (LTE) system, LTE frequency division duplex (frequency division duplex (FDD)) system, LTE time division duplex (TDD), universal mobile communication system (UMTS), worldwide interconnected microwave access (WiMAX) communication system 5. Future 5th generation (5G) systems or new radio (NR).

B. Memory 120

The memory 120 may be configured to store software programs and modules, and the processor 180 executes various functional applications and data processing of the terminal device 100 by running the software programs and modules stored in the memory 120. The memory 120 may mainly include a storage program area and a storage data area, where the storage program area may store an operating system, application programs required for at least one function (such as a sound playback function, an image playback function, etc.), etc .; the storage data area may store Data (such as audio data, phone book, etc.) created based on the use of the terminal device 100. In addition, the memory 120 may include a high-speed random access memory, and may further include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.

C. Other input devices 130

The other input devices 130 may be used to receive inputted numeric or character information, and generate key signal inputs related to user settings and function control of the terminal device 100. Specifically, the other input devices 130 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, an joystick, and a light mouse (a light mouse is a touch-sensitive device that does not display visual output). Or one or more of a touch sensitive surface formed by a touch screen). The other input devices 130 are connected to other input device controllers 171 of the I / O subsystem 170, and perform signal interaction with the processor 180 under the control of the other device input controllers 171.

D. Display 140

The display screen 140 may be used to display information input by the user or information provided to the user and various menus of the terminal device 100, and may also accept user input. The specific display screen 140 may include a display panel 141 and a touch panel 142. The display panel 141 may be configured with a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like. Touch panel 142, also known as touch screen, touch-sensitive screen, etc., can collect user's contact or non-contact operations on or near it (for example, the user uses a finger, a stylus or any suitable object or accessory on touch panel 142 Or the operation near the touch panel 142 may also include a somatosensory operation; the operation includes a single-point control operation, a multi-point control operation and the like), and the corresponding connection device is driven according to a preset program. Optionally, the touch panel 142 may include a touch detection device and a touch controller. Among them, the touch detection device detects a user's touch orientation and posture, and detects signals brought by the touch operation, and transmits the signals to the touch controller; the touch controller receives touch information from the touch detection device and converts it into a processor capable of The processed information is then sent to the processor 180, which can receive commands from the processor 180 and execute them. In addition, the touch panel 142 may be implemented using various types such as resistive, capacitive, infrared, and surface acoustic wave, and the touch panel 142 may also be implemented using any technology developed in the future. Further, the touch panel 142 may cover the display panel 141, and the user may display the display panel 141 (the display content includes, but is not limited to, a soft keyboard, a virtual mouse, virtual keys, icons, etc.) on the display panel 141 An operation is performed on or near the covered touch panel 142. After the touch panel 142 detects an operation on or near the touch panel 142, the touch panel 142 transmits the operation to the processor 180 through the I / O subsystem 170 to determine a user input. The inputs provide corresponding visual outputs on the display panel 141 through the I / O subsystem 170. Although in FIG. 4, the touch panel 142 and the display panel 141 are implemented as two independent components to implement the input and input functions of the terminal device 100, in some embodiments, the touch panel 142 and the display panel 141 may be used. Integrated to implement the input and output functions of the terminal device 100.

E. Sensor 150

The sensor 150 may be one or more types. For example, the sensor 150 may include a light sensor, a motion sensor, and other sensors.

Specifically, the light sensor may include an ambient light sensor and a proximity sensor. The ambient light sensor may adjust the brightness of the display panel 141 according to the brightness of the ambient light. The proximity sensor may close the display panel 141 when the terminal device 100 is moved to the ear. And / or backlight.

As a type of motion sensor, an acceleration sensor can detect the magnitude of acceleration in various directions (generally three axes). It can detect the magnitude and direction of gravity when it is stationary. It can be used to identify the posture of the terminal device (such as horizontal and vertical screen switching, related Games, magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tap), etc.

In addition, the terminal device 100 may be configured with other sensors such as a gravity sensor (also referred to as a gravity sensor), a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, and the like, and details are not described herein again.

F. Audio circuit 160, speaker 161, microphone 162

An audio interface between the user and the terminal device 100 may be provided. The audio circuit 160 may transmit the received converted signal of the audio data to the speaker 161, and the speaker 161 converts it into a sound signal for output. On the other hand, the microphone 162 converts the collected sound signal into a signal, and the audio circuit 160 It is converted into audio data, and then the audio data is output to the RF circuit 108 for transmission to, for example, another terminal device, or the audio data is output to the memory 120 for further processing.

G.I / O subsystem 170

The I / O subsystem 170 is used to control input and output of external devices, and may include other device input controllers 171, sensor controllers 172, and display controllers 173. Optionally, one or more other input control device controllers 171 receive signals from and / or send signals to other input devices 130. The other input devices 130 may include physical buttons (press buttons, rocker buttons, etc.) , Dial, slide switch, joystick, click wheel, light mouse (light mouse is a touch-sensitive surface that does not display visual output, or an extension of a touch-sensitive surface formed by a touch screen). It is worth noting that the other input control device controller 171 may be connected to any one or more of the above devices. The display controller 173 in the I / O subsystem 170 receives signals from the display screen 140 and / or sends signals to the display screen 140. After the display screen 140 detects a user input, the display controller 173 converts the detected user input into interaction with a user interface object displayed on the display screen 140, that is, realizes human-computer interaction. The sensor controller 172 may receive signals from and / or send signals to one or more sensors 150.

H. Processor 180

The processor 180 is a control center of the terminal device 100, and uses various interfaces and lines to connect various parts of the entire terminal device. The processor 180 runs or executes software programs and / or modules stored in the memory 120, and calls the stored programs in the memory 120. The data performs various functions of the terminal device 100 and processes data, thereby performing overall monitoring of the terminal device. Optionally, the processor 180 may include one or more processing units; preferably, the processor 180 may integrate an application processor and a modem processor, wherein the application processor mainly processes an operating system, a user interface, and an application program, etc. The modem processor mainly handles wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 180.

The terminal device 100 further includes a power source 190 (such as a battery) for supplying power to various components. The power source can be logically connected to the processor 180 through a power management system, so as to implement functions such as management of charging, discharging, and power consumption through the power management system.

In addition, although not shown, the terminal device 100 may further include a camera, a Bluetooth module, and the like, and details are not described herein again.

It should be noted that the terminal device shown in FIG. 1 is only an example of a terminal device, and this application is not particularly limited. The embodiments of this application can be applied to electronic devices such as mobile phones and tablet computers, and this application does not limit this. .

As shown in FIG. 1, the terminal device 100 may include a display screen 140. The display screen 140 may include a display panel, and the display panel may also be referred to as a display line.

Optionally, the display screen 140 may further include a cover glass (CG), and the display panel may be covered by the cover glass. Further, the area of the cover glass may be larger than or equal to the display panel, and the cover glass may partially overlap the display panel. When the cover glass and the display panel partially overlap, the area where the two overlap may be referred to as the display area of the display screen, and accordingly, the area where the two do not overlap may be referred to as the non-display area of the display screen.

As shown in FIG. 1, the terminal device 100 may further include a sensor 150. The sensor 150 may be a sensor component including a signal transmitter and a signal detector. The sensor component may be an ambient light sensor or a proximity sensor. The signal transmitter may be It is used to transmit the detection signal to the outside of the display screen. The signal detector can be used to receive the reflection signal formed after the detection signal is reflected by an external object.

The proximity sensor may be an infrared light-based proximity sensor and may be referred to as an optical proximity sensor. Accordingly, the signal transmitter of the infrared light-based proximity sensor may be an infrared light transmitter for emitting infrared light outside the display screen. The signal detector of the infrared light-based proximity sensor may be an infrared light detector for receiving reflected light formed after infrared light is reflected by an external object.

Generally, the proximity sensor is not exposed on the surface of the terminal device, but is located in a non-display area of the display screen and is disposed under the cover glass.

By way of example and not limitation, this application uses an infrared light-based proximity sensor as an example for description. For ease of description, the infrared light-based proximity sensors are collectively referred to as proximity sensors in the following. It should be understood that the proximity sensor described in the embodiment of the present application is only an example of a sensor component, and the present application is not particularly limited.

The proximity sensor can sense the distance between the terminal device and the object, so that the terminal device can realize the on / off control of the display screen. That is, the terminal device may control the terminal device to turn off or light up the screen according to the distance between the terminal device and the object detected by the proximity sensor. Generally, the proximity sensor can be an infrared light-based proximity sensor. The proximity sensor can be composed of an infrared light transmitter and an infrared light detector. The infrared light transmitter here can also be called an infrared light source, and the infrared light detector can also be called infrared. detector. The application does not limit the type of the proximity sensor.

The terminal device can have a communication function. When the user uses the terminal device for a call, the proximity sensor can collect the distance between the terminal device and the user's ear. If the distance between the terminal device and the ear is less than (or equal to) a preset distance, the terminal The device can turn off the display, which can reduce the power consumption of the terminal device. Similarly, when the user ends the call, the proximity sensor can also collect the distance between the terminal device and the user's ear. If the distance between the terminal device and the ear is greater than (or equal to) a preset distance, the terminal device can light up the display screen.

In the embodiment of the present application, the display screen of the terminal device may also be a touch screen. When a user uses the terminal device to make a call, if the distance between the terminal device and the ear is less than (or equal to) a preset first distance, the terminal device may be turned off. The display screen, that is, the terminal device enters an approaching state, and no longer accepts a user's touch operation on the touch screen at this time, which can avoid various misoperations caused by accidentally touching the display screen. Similarly, if the distance between the terminal device and the ear is greater than (or equal to) a preset second distance, the terminal device may light up the display screen, that is, the terminal device enters a distant state.

For example, in this application, the preset first distance may be 2 centimeters (cm), and the preset second distance may be 5 cm. At this time, when the distance between the terminal device and the close object is less than or equal to 2 cm, The terminal device enters a close state. When the distance between the terminal device and a close object is greater than or equal to 5 cm, the terminal device enters a distant state.

If the terminal device has a communication function, when a user uses the terminal device to make a call, the proximity sensor can more accurately determine that an object is approaching or away from the display screen of the terminal device.

When an object approaches the display screen of the terminal device or the cover glass, the light emitted by the infrared light transmitter passes through the cover glass and is reflected by the approaching object. The reflected infrared light passes through the cover glass and is detected by infrared light. Device received. The infrared light emitted by the infrared light transmitter and received by the infrared light detector after being reflected by the receiving object can be referred to as the reflected light near the object. In this process, part of the light emitted by the infrared light transmitter fails to pass through the cover glass, but is reflected by the cover glass and received by the infrared light detector. This part of the infrared light can be It is considered as the noise floor, and it is much less than the infrared light reflected by the close object, which can be called the non-close object reflected light. An object that is close to the display screen of the terminal device may be referred to as an approaching object.

When no object approaches the display screen of the terminal device, among the infrared light emitted by the infrared light transmitter, it can be considered that only a part of the infrared light reflected by the cover glass is detected by the infrared light detector. That is, it can be understood that, among the infrared light received by the infrared detector, there is no infrared light reflected near the object, but only the infrared light reflected by the cover glass.

Generally, the closer the distance between the near object and the display screen of the terminal device, the stronger the infrared light energy captured by the infrared light detector. Therefore, the distance between the object and the display screen of the terminal device can be determined by the amount of infrared light energy (or the intensity of the infrared light energy) captured by the infrared light detector, and the terminal device can be determined to be in an approaching state or a distant state according to the distance. In other words, based on the amount of energy of the infrared light detected by the infrared light detector, it can be determined whether the terminal device is in a near state or a distant state with respect to the object, so that the terminal device can be controlled to turn off or brighten the screen.

For example, when the intensity of the infrared light detected by the infrared detector is greater than or equal to a preset threshold, it can be determined that the terminal device is in a close state; when the intensity of the infrared light detected by the infrared detector is less than a preset threshold When it is determined that the terminal device is in a distant state.

FIG. 2 is a schematic structural diagram of a terminal device according to an embodiment of the present application. It should be understood that the terminal device 200 shown in FIG. 2 is only an example, which may include more modules or units, and the positions of the modules or units in the terminal device 200 shown in FIG. 2 are only examples, and Unlimited.

As an example, the display screen 210 in FIG. 2 may be the display screen 140 of the terminal device 100 shown in FIG. 1.

As shown in FIG. 2, the terminal device 200 includes: a display screen 210, an infrared light emitter 220, and an infrared light detector 230; the display screen 210 includes a display area 218 and a non-display area 216; and the infrared light emitter 220 Is located in the non-display area 216 for transmitting a detection signal with a first preset radiation intensity; the infrared light detector 230 is located in the display area 218 for receiving a reflected signal; the infrared light transmitter 220 The distance from the infrared light detector 230 is in a second preset range.

It should be understood that “inside” in “inside the display screen” and “outside” in “outside the display screen” described in the embodiments of the present application are respectively different from “inside” and “outside the terminal device” in “inside the terminal device”. "Out" indicates the same orientation.

In the terminal device 200 in the embodiment of the present application, since the infrared light detector 230 is arranged in the display area 218, the display area of the display screen 210 can be increased, thereby increasing the screen ratio of the terminal device 200.

Optionally, the infrared light transmitter 220 and the infrared light detector 230 belong to the proximity sensor of the terminal device 200, and the proximity sensor may be the sensor 150 in the terminal device 100 shown in FIG. 1.

As a possible implementation manner of the embodiment of the present application, the infrared light emitter 220 may be located in the display area 218. In this way, the display area of the display screen 210 can be further increased, thereby further increasing the screen ratio of the terminal device 200.

In the embodiment of the present application, the terminal device 200 shown in FIG. 2 may further include an earphone 201 and a camera 202. Further, the handset 201 and the camera 202 may be configured in the display screen 210 and located in the display area 218, thereby further increasing the screen ratio of the terminal device 200.

Generally, the infrared light transmitter 220 and the infrared light detector 230 may be packaged together to form a proximity sensor component. In the embodiment of the present application, the infrared light transmitter 220 may be separated from the proximity sensor component to enable infrared light detection. The monitor 230 may be disposed in the display area 218 of the display screen 210, thereby increasing the screen ratio of the terminal device 200.

Because the infrared light detector 230 is disposed in the display area 218 of the display screen 210, the radiation intensity of the infrared light transmitter 220 needs to be increased so that the infrared light detector 230 can receive the light emitted from the display screen. A reflected signal into the display screen, so that the function of the sensor can be kept normal.

The proximity sensor 300 in FIG. 3 is an example of a sensor component in the embodiment of the present application. As shown in FIG. 3, a pin SCL of the proximity sensor 300 is a clock bus port, and can be connected to a pin SCL of a processor in a terminal device; Pin SDA is a data bus port and can be connected to the pin SDA of the processor in the terminal device; pin INT is an interrupt port and can be connected to the pin INT of the processor in the terminal device; pin VDD is a working voltage port and can be connected to the proximity sensor Internal working voltage; pin GND is the ground port, pin PGND is the protective ground port; pin LDR is the current drive port, which can be connected to the negative (or cathode) of the infrared light transmitter 220, LEDA means infrared light transmitter The positive electrode (or anode) of 220 can be connected to the supply voltage VCC of the internal circuit of the terminal device.

Among them, the infrared light detector 230 is packaged inside the proximity sensor 300, the positive pole of the infrared light detector 230 is grounded, and the negative pole of the infrared light detector 230 is connected to the pin SCL and the pin SDA through other components or modules. For the connection method, reference may be made to the prior art, and details are not described herein again.

It can be seen from FIG. 3 that the anode of the infrared light transmitter 220 can be outside the infrared light detector 230 and connected to the LDR port of the infrared light detector 230, and the anode of the infrared light transmitter 220 can be connected to the internal circuit of the terminal device. The power supply voltage VCC is connected. At this time, the infrared light transmitter 220 can be separated from the proximity sensor 300, so that the infrared light transmitter 220 can be configured in the display area 218 of the display screen 210, and the infrared light detector 230 can be configured. In a non-display area 216 of the display screen 210.

In the proximity sensor 300 in the embodiment of the present application, the infrared light transmitter 220 can be separated from the proximity sensor, so that the infrared light transmitter 220 is connected to the infrared light detector 230 outside the infrared light detector 230, so that The configuration of the proximity sensor is more flexible.

It should be noted that the position of the infrared light detector 230 in the display area needs to be in a second preset range, that is, the infrared light detector 230 needs to be located on the reflected signal that is projected into the display screen from outside the display screen. In this way, the infrared light detector 230 can receive the reflected signal.

FIG. 4 is an exemplary structural diagram of a terminal device 200 according to an embodiment of the present application. As shown in FIG. 4, the display screen 210 of the terminal device 200 includes a cover glass 212 and a display panel 214. The display panel 214 is disposed below the cover glass 212. An area where the display panel 214 and the cover glass 212 overlap may be referred to as a display. The display area 218 of the screen 210, the area where the display panel 214 and the cover glass 212 do not overlap may be referred to as a non-display area 216 of the display screen 210.

The infrared light transmitter 220 is located in the non-display area 216 and is located inside the display screen 210 for transmitting a detection signal with a first preset radiation intensity; the infrared light detector 230 is located in the display area 218 and is located in a display The inner side of the screen 210 is used to receive a reflected signal; the distance between the signal transmitter and the signal detector is in a second preset range.

Optionally, the first preset radiation intensity may be greater than 7 milliwatts per sphere (mW / sr).

Optionally, the second preset range may be greater than 2 millimeters (mm) and less than or equal to 6 mm.

Optionally, the terminal device 200 may further include a circuit board 260, and the infrared light transmitter 220 and the infrared light detector 230 are fixed on the circuit board 260. For example, the infrared light transmitter 220 and the infrared light detector 230 may be soldered on the circuit board 260.

The circuit board 260 may be a flexible printed circuit board (FPC) or a printed circuit board (PCB).

Optionally, the terminal device 200 may further include a light shielding layer 240, which is disposed between the display screen 210 and the infrared light detector 230.

Optionally, the terminal device 200 may further include a through hole 250. In this way, unnecessary signal attenuation can be reduced, so that the reflected light passing through the display screen 210 can be smoothly received by the signal detector.

As a possible implementation manner, the light shielding layer 240 may be provided with a through hole 250, and the infrared light detector 230 is located within the range of the through hole 250. The infrared light detector 230 may receive reflected light through the through hole 250. For example, the reflected light may be reflected light formed by the infrared light emitted by the infrared light transmitter 220 after being reflected by an external object. The reflected light may be the infrared light transmitter 220. The emitted infrared light is reflected light after being reflected by the cover glass 212.

Optionally, the display screen 210 may include an ink layer 213, and the ink layer 213 may be located inside the cover glass 212. Further, the ink layer 213 may be printed on the inside of the cover glass 212.

Optionally, the centers of the signal transmitter and the signal detector are on a straight line. As shown in Figure 1. Of course, the centers of the signal transmitter and the signal detector may not be in a straight line, and the signal detector is in a possible area of the reflected light, and it is only necessary to ensure that the reflected light can be received. Embodiments of the present application Not specifically limited.

In the embodiment of the present application, the proximity sensor can sense the distance between the terminal device and the approaching object, so that the terminal device can control the terminal device to turn off or brighten the screen according to the distance between the terminal device and the approaching object detected by the proximity sensor.

Generally speaking, the performance of a proximity sensor in a terminal device needs to meet certain requirements in order to make the terminal device extinguish or light up the display screen at a predetermined distance. The performance of the proximity sensor refers to the sensitivity of the proximity sensor to the distance to the object.

For example, if the terminal device is to extinguish or light up the display device at a predetermined distance, the proximity sensor needs to be able to sense an approaching object when the predetermined distance is between the terminal device and the proximity object, that is, the performance of the proximity sensor needs It can be realized that an approaching object is sensed at a predetermined distance.

The performance of the proximity sensor can be reflected by the signal-to-noise ratio (SNR) of the proximity sensor. Therefore, in order to make the proximity sensor sense a proximity object at a predetermined distance, the SNR of the proximity transmitter needs to meet certain requirements.

For example, if the terminal device needs to enter the proximity state when the distance to the proximity object is less than or equal to 2 cm, and enters the far state when the distance to the proximity object is greater than or equal to 5 cm, the SNR value of the proximity sensor needs to be greater than or equal to 5.

As shown in FIG. 5, the SNR of the proximity sensor is received by the infrared light detector 230, the energy value of the reflected light 219 from the approaching object, the energy value of the non-proximity object reflected light 217, and the infrared light detected by the infrared light detector 230. The data jitter of the processor 230 is determined. The data jitter of the infrared light detector 230 refers to the bias error of the infrared light detector, and is determined by the performance of the device of the infrared light detector 230. The data jitter of the infrared light detector 230 is a fixed value.

Specifically, SNR = (pdata-crosstalk) / jitter. Among them, pdata represents the energy value of the reflected light 219 of the near object received by the infrared light detector 230, crosstalk represents the energy value of the reflected light 217 of the non-closed object received by the infrared light detector 230, and jitter represents the data jitter of the infrared light detector .

pdata is related to the radiation intensity of the infrared light transmitter and the infrared light transmittance of the display screen. The greater the radiation intensity of the infrared light transmitter and the higher the infrared light transmittance of the display screen, the larger the pdata; otherwise, the smaller the pdata.

Crosstalk is related to the radiation intensity of the infrared light transmitter, the infrared light transmittance of the display screen, and the distance between the infrared light transmitter and the infrared light detector. The greater the radiation intensity of the infrared light transmitter, the lower the infrared light transmittance of the display screen, and the closer the distance between the infrared light transmitter and the infrared light detector, the larger the crosstalk; otherwise, the smaller the crosstalk.

The following describes the distance between the infrared light transmitter and the infrared light detector and how the radiation intensity of the infrared light transmitter should be taken in conjunction with FIG. 5 so that the SNR of the proximity sensor can meet the requirements, and the performance of the proximity sensor can meet the requirements. Eventually, the terminal device can extinguish or light up the display screen at a predetermined distance.

As shown in FIG. 5, in the embodiment of the present application, the infrared light detector 230 of the terminal device is located below the cover glass 212 and the display panel 214 of the display area 218, and the infrared light transmitter 220 is located on the cover glass of the non-display area 216. 212 and / or the ink layer 213. It can be seen that the infrared light transmittance of the display screen refers to the infrared light transmittance of the cover glass, the display panel and / or the ink layer.

The infrared light transmittance of the same medium is related to the infrared light reflectance. Generally speaking, the higher the infrared light transmittance, the lower the infrared light reflectance. For example, the cover glass is used as an example to explain that if the cover glass has a higher infrared light transmittance, the cover glass has a lower infrared light reflectance; if the cover glass has a lower infrared light transmittance, The higher the infrared light reflectivity of the cover glass. Therefore, pdata and crosstalk can also be considered to be related to the infrared light reflectivity of the display screen (including the display panel, cover glass and / or ink layer).

Based on the above description, the influence of the radiation intensity of the infrared light emitter, the infrared light transmittance of the display screen, and the distance between the infrared light emitter and the infrared light detector on pdata and crosstalk are shown in the table below. The infrared light transmittance here refers to the infrared light transmittance of the cover glass, the display panel and / or the ink layer.

The radiation intensity of the infrared light transmitter The infrared light transmittance The distance between the infrared light transmitter and the infrared light detector

Large pdata. High intensity of infrared light emitter. High infrared light transmittance. Does not affect.

Small pdata: Low radiation intensity of infrared light transmitter Low infrared light transmittance Does not affect

Crosstalk is large. The intensity of the infrared light transmitter is high. The infrared light transmittance is low. The distance between the infrared light transmitter and the infrared light detector is small.

The crosstalk is small. The radiation intensity of the infrared light transmitter is low. The infrared light transmittance is high. The distance between the infrared light transmitter and the infrared light detector is large.

The infrared light transmittance of the display panel is related to the wiring density and material of the display lines of the display panel. Generally speaking, the higher the resolution of the display panel of the same material, the denser the display lines, and the lower the infrared light transmittance; otherwise, the higher the infrared light transmittance. At present, the infrared light transmittance of display panels is much lower than that of cover glass and ink layers.

In the terminal device in the embodiment of the present application, since the infrared light detector is located inside the cover glass of the display area and the display panel, that is, the infrared light received by the infrared detector needs to pass through the display panel, and the infrared light transmittance of the display panel is small. Will cause the pdata to become smaller and the crosstalk to be larger. Therefore, if the SNR of the proximity sensor in the embodiments of the present application is not less than the SNR of the proximity sensor in the prior art, it can be achieved by increasing pdata and / or reducing crosstalk. . Among the proximity sensors in the prior art described herein, both the infrared light emitter and the infrared light detector are located in a non-display area of a display screen.

If you want to increase the pdata, you can increase the radiation intensity of the infrared light emitter. For example, the radiation intensity of an infrared light emitter can be increased by 3 to 4 times. For example, if the infrared light detector is located in a non-display area of a display screen and the power of the infrared light source is 2 milliwatts per sphericity (mW / sr), the radiation intensity of the infrared light transmitter in the embodiment of the present application can be Increase to more than 6mW / sr.

To reduce crosstalk, increase the distance between the infrared light detector and the infrared light emitter. For example, the distance between the infrared light detector and the infrared light transmitter can be increased to more than 2 mm, and further, the distance needs to be less than or equal to 6 mm.

As can be seen from the above table, when the radiation intensity of the infrared light emitter is increased to increase the pdata, the crosstalk will also increase accordingly. Therefore, when the radiation intensity of the infrared light transmitter is increased to increase the pdata, the distance between the infrared light detector and the infrared light transmitter can be increased at the same time to reduce the crosstalk, thereby better ensuring that the SNR of the proximity sensor is not less than SNR of the proximity sensor in the prior art.

For example, the radiation intensity of the infrared light emitter can be set to a first preset radiation intensity, the distance between the infrared light emitter and the infrared light detector can be set to a second preset range, and the first preset radiation intensity and the second The preset range should be such that the SNR of the proximity sensor is not less than a preset SNR threshold, for example, it is not less than the SNR of the proximity sensor in the prior art. A value range of the SNR of the proximity sensor in the prior art is not less than 5.

The first preset radiation intensity and the second preset range can be obtained by simulation using a finite element method. For example, through simulation software, the radiation intensity of the infrared light transmitter and the distance between the infrared light transmitter and the infrared light detector can be continuously adjusted until the energy value pdata, infrared, and The SNR calculated by the energy value of the crosstalk received by the light detector from the light reflected by the non-close object and the data jitter of the infrared light detector is greater than or equal to a preset SNR threshold. The radiation intensity of the infrared light transmitter at this time is the first preset radiation intensity, and the distance between the infrared light transmitter and the infrared light detector is the second preset range.

For example, to ensure that the SNR of the proximity sensor in the embodiments of the present application is not less than 5, the radiation intensity of the infrared light transmitter can be increased by 3 to 4 times compared to the radiation intensity of the infrared light transmitter in the existing terminal device. At the same time, increase the distance between the infrared light detector and the infrared light transmitter to more than 2mm.

Optionally, the distance between the infrared light detector and the infrared light transmitter may be less than or equal to 6 mm.

For example, the radiation intensity of the infrared light transmitter in the existing terminal equipment is 2mW / sr, and the distance between the infrared light detector and the infrared light transmitter is 1 to 2mm, and the SNR is not less than 5, based on these data. The finite element simulation can obtain the following results: the first preset radiation intensity is greater than 4mW / sr, or the first preset radiation intensity is greater than or equal to 6mW / sr, and / or, the second preset range is greater than 2mm, and the second preset The setting range can be less than or equal to 6mm. In this way, the terminal device in the embodiment of the present application can turn off or light up the display screen at a predetermined distance. The predetermined distance may be the same as the distance at which the terminal device in the prior art turns off or lights up the display screen.

Because the infrared light actually detected by the infrared light detector of the terminal device usually includes the energy value (pdata) of the reflected light near the object and the energy value of the reflected light (crosstalk) of the non-closed object, the terminal device will be based on the infrared light. The distance between the detector and the infrared light transmitter is preset to an energy value (crosstalk0) of light reflected from a non-proximity object.

For example, when the distance between the infrared light detector and the infrared light transmitter is 5mm, the crosstalk corresponding to 5mm is preset in the terminal device. The crosstalk 0 corresponding to 5mm refers to: between the infrared light detector and the infrared light transmitter When the distance is 5mm, the energy value of light reflected by non-close objects.

In this way, when the terminal device determines whether it is in a near state or a distant state, it can subtract the preset crosstalk0 from the energy value (pdata + crosstalk) of the infrared light actually detected by the infrared light detector, so as to obtain the reflected light of the approaching object An energy value, and compare the energy value with pdata1 or pdata2, and then determine whether the terminal device is in an approaching state or a distant state according to the comparison result.

Among them, pdata1 is a preset energy value of the reflected light of the terminal device when the terminal device is just close to the object, and pdata2 is a preset energy value of infrared light of the terminal device when the terminal device is just near the object. Optionally, pdata1 and pdata2 may be equal.

However, in the actual assembly process, due to issues such as the accuracy of the installation equipment or the level of technology, the positions of the infrared light emitters and infrared light detectors in the terminal device will be offset during installation, which makes the infrared light emitters and infrared light detectors. There is a deviation between the actual installation distance and the expected installation distance, that is, the actual installation distance between the infrared light detector and the infrared light transmitter is not equal to the expected installation distance between the infrared light detector and the infrared light transmitter. For example, the expected installation distance between the infrared light detector and the infrared light transmitter is 5mm, but the actual installation distance between the infrared light detector and the infrared light transmitter may be only 4.9mm, which is a deviation of 0.1mm compared to 5mm .

Due to the different distances between the infrared light detector and the infrared light emitter, the energy values of the light reflected by non-close objects are different. Therefore, the actual installation distance between the infrared light emitter and the infrared light detector is different from the expected installation distance. When there is a deviation between the two, the energy value of the non-close object light in the infrared light actually detected by the infrared light detector is different from the energy value of the non-close object light preset in the terminal device. In this case, if the terminal device also presets the energy value of the light of the non-proximity object according to the expected installation distance between the infrared light transmitter and the infrared light detector, it will cause the terminal device to calculate the energy value based on the energy value. The energy value of the light approaching the object is not accurate.

In view of this problem, this application proposes a method for controlling a terminal device. The method includes: when the infrared light emitted by the infrared light transmitter of the terminal device is not reflected by an external object, the infrared light detector of the terminal device detects the infrared light and presets the energy value of the detected infrared light to be non-close The energy value of the object light and controlling the terminal device to turn off the screen or light up the screen according to the preset energy value of the non-close object light.

The terminal device presets the energy value of the non-close-to-object light through this method, and controls the terminal device to turn off the screen or lights the screen according to the preset energy value of the non-close-to-object light, which can improve the terminal device to turn off or light the screen Accuracy.

A method for controlling a terminal device according to an embodiment of the present application may include the following three steps.

Step 1: Obtain a first value. The first value is the infrared light detected by the infrared light detector of the terminal device when the infrared light emitted by the infrared light transmitter of the terminal device is not reflected by an external object. Energy value.

The first value may be an energy value of the infrared light detected by the infrared light detector of the terminal device when the infrared light emitted by the infrared light transmitter of the terminal device is not reflected by an external object, and the energy value is preset in the terminal. The energy value of the light in the device as a non-proximate object. The first value may be configured on the terminal device when the terminal device is configured before the terminal device leaves the factory.

It should be understood that the first value is a value output when the infrared light detector detects the infrared light when the infrared light emitted by the infrared light transmitter is not reflected by an external object when there is no object obstruction above the display screen of the terminal device. Since there is no approaching object above the display screen, the first value here is the energy of light reflected by non-proximity objects. For example, the first value may be an energy value of infrared light reflected by the cover glass and the display panel.

It should be noted that if there is an installation deviation, the first value may be compared with the energy value of infrared light reflected by a non-close object corresponding to a preset installation distance between the infrared light detector and the infrared light transmitter. Large deviation.

Step 2: Obtain a second value, which is the energy of the infrared light detected by the infrared light detector of the terminal device when the infrared light emitted by the infrared light transmitter of the terminal device is reflected by an external object value.

The second value may be obtained by the user equipment during the process of using the terminal device.

It should be understood that the second value is a value that is output after the infrared light detector detects the infrared light after the infrared light emitted by the infrared light transmitter is reflected by an external object when an object is blocked above the display screen of the terminal device. At this time, there is an approaching object above the display screen, so the second value is the sum of the energy reflected by the approaching object and the energy reflected by the non-proximity object. That is to say, the second value includes the infrared light emitted by the infrared light transmitter of the terminal device after being reflected by the approaching object, and the infrared light detected by the infrared light detector also includes the direct cover without being reflected by the approaching object. Infrared light detected by the infrared light detector after reflection by plate glass, ink or display panel.

Step 3: Control the terminal device to turn off the display screen or light up the display screen according to the first value and the second value.

In some possible implementation manners, the terminal device may be controlled to turn off the display screen or light up the display screen according to a third value obtained by subtracting the first value from the second value.

For example, when the third value is greater than or equal to the first threshold value, control the terminal device to turn off the display screen; when the third value is less than or equal to the second threshold value, control the terminal device to light up the display screen.

For example, the terminal device may save an energy value (a first threshold value) of infrared light corresponding to a preset distance into the approach state. For example, when the distance between the display screen of the terminal device and the approaching object is less than or equal to 2 cm, the terminal device enters the proximity state, that is, the display screen is turned off, and the terminal device can save the distance between the display screen of the terminal device and the approaching object. When it is 2 cm, only the energy value of the infrared light reflected by the near object is recorded as the first threshold.

When determining whether the terminal device is in a close state, the energy value (that is, the second value) of the infrared light detected by the infrared light detector in real time can be subtracted from the first value, and the obtained third value and the pre-stored first threshold value In comparison, when the third value is greater than or equal to the first threshold value, the terminal device is controlled to enter an approaching state, that is, the display screen is turned off.

For example, the terminal device may save an energy value (a second threshold value) of the infrared light corresponding to a preset distance into the distant state. For example, when the distance between the display screen of the terminal device and the approaching object is greater than or equal to 5 cm, the terminal device enters a distant state, that is, the display screen is lit, and the terminal device can save When the distance is 5 cm, only the energy value of the infrared light reflected by the close object is recorded as the second threshold.

When determining whether the terminal device is in a distant state, the energy value (that is, the second value) of the infrared light detected by the infrared light detector in real time can be subtracted from the first value, and the obtained third value and the pre-stored second threshold value In comparison, when the third value is less than or equal to the second threshold value, the terminal device is controlled to enter a distant state, that is, the display screen is turned on.

Optionally, whether the terminal device is qualified may be tested by the method for controlling the terminal device. It should be understood that the test process here may be a test performed by the terminal device before leaving the factory. For example, before the terminal device leaves the factory, it is detected whether the terminal device can enter a close state and / or a distant state at a predetermined distance. A method for testing a terminal device according to an embodiment of the present application includes the following four steps.

Step 1. Start the proximity light test.

First, start the proximity light test software. Optionally, the proximity light test software may be an application (APP) installed in a terminal device.

After the proximity sensor of the terminal device is installed, a proximity light test can be performed on the terminal device, that is, testing whether the terminal device can enter an approaching state and a distant state within a preset distance range.

For example, if the distance between the terminal device and the object is within a preset distance range, and the terminal device is in a close state, it means that the close state of the terminal device is qualified; otherwise, it is unqualified. If the distance between the terminal device and the object is greater than or equal to a preset distance threshold, and the terminal device is in a distant state, the distant state of the terminal device is qualified; otherwise, the terminal device is unqualified.

Step two: test the proximity state of the terminal device proximity sensor.

For example, the distance between the approaching object and the display screen of the terminal device can be gradually reduced. In this process, the terminal device performs the three steps in the foregoing method for controlling a terminal device multiple times. For the specific address, obtain the first value and the second value, subtract the first value from the second value to obtain a third value, and compare the third value with a pre-stored first threshold. One type of comparison result between the third value and the first threshold value is that the third value is smaller than the first threshold value, and the other comparison result is that the third value is greater than or equal to the first threshold value.

If "0" is used to indicate that the third value is less than the first threshold value, and "1" is used to indicate that the third value is greater than or equal to the first threshold value, the comparison result obtained by the optical testing software is close to "0" when it is changed to "1" , Measuring the distance between the proximity object and the display screen of the terminal device, and determining whether the difference between the distance and a preset distance threshold meets a preset condition.

For example, when the distance between the approaching object and the display screen of the terminal device is less than or equal to 2 cm and the terminal device is in a close state, the first threshold value may be preset to 2 cm. At this time, if the distance between the measured proximity object and the display of the terminal device is equal to 2cm, or the difference between the distance between the measured proximity object and the display of the terminal device and 2cm is within a preset range , It can be determined that the proximity status of the terminal device is qualified.

Step three: test the distance of the terminal device from the proximity sensor.

For example, the distance between the approaching object and the display screen of the terminal device can be gradually increased. In this process, the terminal device performs the three steps in the foregoing method for controlling a terminal device multiple times. For the specific address, obtain a first value and a second value, subtract the first value from the second value to obtain a third value, and compare the third value with a pre-stored second threshold. One comparison result between the third value and the second threshold value is that the third value is greater than the second threshold value, and the other comparison result is that the third value is less than or equal to the second threshold value.

If “1” is used to indicate that the third value is greater than the second threshold, and “0” is used to indicate that the third value is less than or equal to the second threshold, the comparison result obtained by the optical testing software is close to “1” when it is changed to “0” , Measuring the distance between the proximity object and the display screen of the terminal device, and determining whether the difference between the distance and a preset distance threshold meets a preset condition.

For example, when the distance between the approaching object and the display screen of the terminal device is greater than or equal to 5 cm and the terminal device is in a distant state, the second threshold value may be preset to 5 cm. At this time, if the distance between the measured proximity object and the display screen of the terminal device is equal to 5cm, or the difference between the distance between the measured proximity object and the display screen of the terminal device and 5cm is within a preset range , It can be determined that the distant state of the terminal device is qualified.

Step 4. End the proximity light test.

If the terminal device enters the proximity state at a preset distance to enter the proximity state, and enters the far state at the preset distance to enter the far state, the proximity light test of the terminal device passes; otherwise, the proximity light test of the terminal device Failed.

Those of ordinary skill in the art may realize that the units and algorithm steps of each example described in connection with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments, and are not repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, which may be electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objective of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each of the units may exist separately physically, or two or more units may be integrated into one unit.

If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application is essentially a part that contributes to the existing technology or a part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in the embodiments of the present application. The aforementioned storage media include: U disks, mobile hard disks, read-only memories (ROMs), random access memories (RAMs), magnetic disks or compact discs and other media that can store program codes .

The above is only a specific implementation of this application, but the scope of protection of this application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in this application. It should be covered by the protection scope of this application. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.

Claims

A terminal device, characterized in that the terminal device includes a display screen and a sensor component;

The display screen includes a display area and a non-display area;

The sensor component includes a signal transmitter and a signal detector;

The signal transmitter is located in the non-display area, and is configured to transmit a detection signal with a first preset radiation intensity;

The signal detector is located in the display area and is used for receiving a reflected signal;

The distance between the signal transmitter and the signal detector is in a second preset range.
The terminal device according to claim 1, wherein the reflected signal comprises a reflected signal that is projected into the display screen from outside the display screen.
The terminal device according to claim 1 or 2, wherein the first preset radiation intensity is greater than 7 milliwatts per sphericity.
The terminal device according to any one of claims 1 to 3, wherein the second preset range is larger than 2 mm and smaller than or equal to 6 mm.
The terminal device according to any one of claims 1 to 4, wherein the terminal device further comprises:

The circuit board, the signal transmitter and the signal detector are fixed on the circuit board.
The terminal device according to any one of claims 1 to 5, wherein the terminal device further comprises:

A light-shielding layer disposed between the display screen and the signal detector.
The terminal device according to any one of claims 1 to 6, wherein the terminal device further comprises:

A through hole, the light shielding layer is provided with a through hole, and the signal detector is located within the range of the through hole.
The terminal device according to any one of claims 1 to 7, wherein the centers of the signal transmitter and the signal detector are on a straight line.