CN110913040A

CN110913040A - Terminal equipment

Info

Publication number: CN110913040A
Application number: CN201811077457.7A
Authority: CN
Inventors: 全志毅
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2018-09-15
Filing date: 2018-09-15
Publication date: 2020-03-24
Also published as: WO2020052494A1

Abstract

The application provides a terminal device. The terminal equipment comprises a display screen and a sensor assembly; a display screen including a display area and a non-display area; the sensor assembly comprises a signal emitter and a signal detector; the signal emitter is positioned in the non-display area and used for emitting a detection signal with a first preset radiation intensity; the signal detector is positioned in the display area and used for receiving the reflected signal; the distance between the signal emitter and the signal detector is in a second preset range. The screen of the terminal equipment provided by the application is larger in ratio.

Description

Terminal equipment

Technical Field

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

Background

With the popularization and development of smart phones, the screen of the phone becomes larger and larger in order to make the user have better visual experience. However, considering the characteristics of the mobile phone such as portability, it is unlikely that the screen of the mobile phone is always enlarged endlessly.

Therefore, how to improve the screen occupation ratio of the mobile phone becomes a technical problem to be solved urgently.

Disclosure of Invention

The application provides a terminal device and a method for controlling the terminal device. The screen of the terminal equipment provided by the application is larger in ratio.

In a first aspect, the present application provides a terminal device, including: a display screen and sensor assembly; the display screen comprises a display area and a non-display area; the sensor assembly includes a signal emitter and a signal detector; the signal emitter is positioned in the non-display area and used for emitting a detection signal with a first preset radiation intensity; the signal detector is positioned in the display area and used for receiving the reflected signal; the distance between the signal emitter and the signal detector is in a second preset range.

In the terminal equipment, the signal detector is positioned in the display area of the display screen, so that the signal detector does not occupy the non-display area of the display screen any more, the area of the non-display area of the display screen can be reduced, and the screen occupation ratio of the terminal equipment is improved.

In some possible implementations, the signal detector is capable of receiving a reflected signal of the detection signal.

In some possible implementations, the reflected signal includes a reflected signal incident to the display screen from outside the display screen.

In some possible implementations, the first predetermined radiation intensity is greater than 7 milliwatts per steradian.

In some possible implementations, the first predetermined radiation intensity is greater than or equal to 6 milliwatts per steradian.

In some possible implementations, the first predetermined radiation intensity is greater than 4 milliwatts per steradian.

In some possible implementations, the second predetermined range is greater than 2 millimeters and less than or equal to 6 millimeters.

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

In some possible implementation manners, the terminal device further includes: and the shading layer is arranged between the display screen and the signal detector.

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

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

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

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

In a second aspect, the present application provides a method of controlling a terminal device. The method comprises the following steps: acquiring a first value, wherein the first value is an energy value of infrared light detected by an infrared light detector of terminal equipment when the infrared light emitted by an infrared light emitter of the terminal equipment is not reflected by an external object; acquiring a second value, wherein the second value is an energy value of infrared light detected by an infrared light detector of the terminal equipment when the infrared light emitted by an infrared light emitter of the terminal equipment is reflected by an external object; and controlling the terminal equipment to extinguish or lighten the screen according to the second value and the first value.

In the 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 emitter of the terminal device is not reflected by an external object, the accuracy of controlling the terminal device to extinguish or illuminate the screen according to the first value can be higher.

In some possible implementations, the controlling the terminal device to turn off or turn on a screen according to the second value and the first value includes: and controlling the terminal equipment to extinguish or lighten the screen according to a third value, wherein the third value is a difference value obtained by subtracting the first value from the second value.

In some possible implementations, the controlling the terminal device to turn off or turn on the screen according to the third value includes: when the third value is larger than or equal to a first threshold value, controlling the terminal equipment to extinguish a screen; and when the third value is less than or equal to a second threshold value, controlling the terminal equipment to light up a screen.

In some possible implementations, the terminal device is the terminal device in the first aspect or any one of the possible implementations of the first aspect.

The application provides a terminal equipment, owing to set up signal detector in the display area of display screen to make signal detector no longer occupy the non-display area of display screen, can reduce the non-display area of display screen, improve terminal equipment's screen and account for the ratio.

Drawings

Fig. 1 is a schematic configuration 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 block diagram of a proximity sensor in accordance with one 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 suitable for use in an embodiment of the present application.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

The technical scheme of the embodiment of the application can be applied to various terminal devices with proximity sensors. The terminal device may also be referred to as a user device, and may be a mobile phone, a telephone watch, a tablet computer, a notebook computer, a Personal Digital Assistant (PDA) device, a digital multimedia player, and the like, but is not limited to a communication terminal.

In addition, in the embodiment of the present application, the terminal device may also be a terminal device in an internet of things (IoT) system, where IoT is an important component of future information technology development, and a main technical feature of the present application is to connect an article with a network through a communication technology, so as to implement an intelligent network with interconnected human-computer and interconnected objects.

Fig. 1 shows a schematic diagram of an example of the terminal device, and as shown in fig. 1, the terminal device 100 may include the following components.

RF circuit 110

The RF circuit 110 may be used for receiving and transmitting signals during information transmission and reception or during a call, and in particular, receives downlink information of a base station and then processes the received downlink information to the processor 180; in addition, the data for designing uplink is transmitted to the base station. Typically, the RF circuitry 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 circuitry 110 may also communicate with networks and other devices via wireless communications. The wireless communication may use any communication standard or protocol, including but not limited to Wireless Local Area Network (WLAN), global system for mobile communication (GSM) system, 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 (FDD) system, LTE time Division duplex (WiMAX), universal mobile communication system (universal mobile telecommunications system, UMTS), universal mobile telecommunications system (WiMAX), worldwide interoperability for Access (microwave Access, WiMAX), future generation (NR 5) system, etc.

B. Memory 120

The memory 120 may be used to store software programs and modules, and the processor 180 executes various functional applications and data processing of the terminal device 100 by operating the software programs and modules stored in the memory 120. The memory 120 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the terminal device 100, and the like. Further, the memory 120 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

C. Other input devices 130

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

D. Display screen 140

The display screen 140 may be used to display information input by or provided to the user and various menus of the terminal device 100, and may also accept user input. The display screen 140 may include a display panel 141 and a touch panel 142. The display panel 141 may be configured in the form of a Liquid Crystal Display (LCD), an organic light-emitting diode (OLED), or the like. The touch panel 142, also referred to as a touch screen, a touch sensitive screen, etc., may collect contact or non-contact operations (for example, operations performed by a user on or near the touch panel 142 using any suitable object or accessory such as a finger or a stylus, and may also include body sensing operations; the operations include single-point control operations, multi-point control operations, etc.) and drive the corresponding connection device according to a preset program. Alternatively, the touch panel 142 may include two parts, i.e., a touch detection device and a touch controller. The touch detection device detects the touch direction and gesture of a user, detects signals brought by touch operation and transmits the signals to the touch controller; the touch controller receives the touch information from the touch detection device, converts the touch information into information that can be processed by the processor, sends the information to the processor 180, and receives and executes a command sent by the processor 180. In addition, the touch panel 142 may be implemented by various types such as a resistive type, a capacitive type, an infrared ray, a surface acoustic wave, and the like, and the touch panel 142 may also be implemented by any technology developed in the future. Further, the touch panel 142 may cover the display panel 141, a user may operate on or near the touch panel 142 covered on the display panel 141 according to the content displayed on the display panel 141 (the display content includes, but is not limited to, a soft keyboard, a virtual mouse, virtual keys, icons, etc.), the touch panel 142 detects the operation on or near the touch panel 142, and transmits the operation to the processor 180 through the I/O subsystem 170 to determine a user input, and then the processor 180 provides a corresponding visual output on the display panel 141 through the I/O subsystem 170 according to the user input. Although in fig. 4, the touch panel 142 and the display panel 141 are two separate components to implement the input and output functions of the terminal device 100, in some embodiments, the touch panel 142 and the display panel 141 may be integrated to implement the input and output functions of the terminal device 100.

E. Sensor 150

The sensor 150 may be one or more, for example, which may include a light sensor, a motion sensor, and other sensors.

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

As one type of motion sensor, the acceleration sensor can detect the magnitude of acceleration in various directions (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used for applications (such as horizontal and vertical screen switching, related games, magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tapping), and the like, for recognizing the attitude of the terminal device.

In addition, the terminal device 100 may further configure other sensors such as a gravity sensor (also referred to as a gravity sensor), a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which are not described in detail herein.

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 converted signal of the received audio data to the speaker 161, and convert the signal into a sound signal for output by the speaker 161; on the other hand, the microphone 162 converts the collected sound signal into a signal, converts the signal into audio data after being received by the audio circuit 160, and then outputs the audio data to the RF circuit 108 to be transmitted to, for example, another terminal device, or outputs the audio data to the memory 120 for further processing.

G.I/O subsystem 170

The I/O subsystem 170 controls input and output of external devices, which may include other devices, an input controller 171, a sensor controller 172, and a display controller 173. Optionally, one or more other input control device controllers 171 receive signals from and/or transmit signals to other input devices 130, and other input devices 130 may include physical buttons (push buttons, rocker buttons, etc.), dials, slide switches, joysticks, click wheels, a light mouse (a light mouse is a touch-sensitive surface that does not display visual output, or is an extension of a touch-sensitive surface formed by a touch screen). It is noted that other input control device controllers 171 may be connected to any one or more of the above-described 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 the user input, the display controller 173 converts the detected user input into an interaction with the user interface object displayed on the display screen 140, i.e., realizes a human-machine interaction. The sensor controller 172 may receive signals from one or more sensors 150 and/or transmit signals to one or more sensors 150.

H. Processor 180

The processor 180 is a control center of the terminal device 100, connects various parts of the entire terminal device using various interfaces and lines, and performs various functions of the terminal device 100 and processes data by running or executing software programs and/or modules stored in the memory 120 and calling data stored in the memory 120, thereby performing overall monitoring of the terminal device. Alternatively, processor 180 may include one or more processing units; preferably, the processor 180 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 180.

Terminal device 100 also includes a power supply 190 (e.g., a battery) for powering the various components, which may be logically coupled to processor 180 via a power management system to manage charging, discharging, and power consumption via the power management system.

In addition, although not shown, the terminal device 100 may further include a camera, a bluetooth module, and the like, which 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 the present application is not particularly limited, and the embodiment of the present application may be applied to an electronic device such as a mobile phone and a tablet computer, and the present application does not limit the present application.

As shown in fig. 1, the terminal device 100 may include a display screen 140. The display screen 140 may include a display panel, which may also be referred to as a display circuitry.

Optionally, the display screen 140 may further include Cover Glass (CG), and the display panel may be covered by the Cover Glass. Further, the cover glass may have an area greater than or equal to the display panel, and the cover glass may partially overlap the display panel. When the cover glass partially overlaps the display panel, the overlapping area of the cover glass and the display panel can be referred to as a display area of the display screen, and correspondingly, the non-overlapping area of the cover glass and the display panel can be referred to as a non-display area of the display screen.

As shown in fig. 1, the terminal device 100 may further include a sensor 150, and the sensor 150 may be a sensor component including a signal emitter and a signal detector, and the sensor component may be an ambient light sensor, a proximity sensor, or the like, wherein the signal emitter may be configured to emit a detection signal to the outside of the display screen, and the signal detector may be configured to receive a reflected signal formed by the detection signal being reflected by an external object.

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

Generally, the proximity sensor is not exposed on the surface of the terminal equipment, but is located in the non-display area of the display screen and is arranged below the cover glass.

By way of example, and not limitation, the present application describes an infrared light-based proximity sensor. For convenience of description, the infrared light-based proximity sensor will be hereinafter collectively referred to simply as a proximity sensor. It should be understood that the proximity sensor described in the embodiments of the present application is only one example of a sensor assembly, and the present application is not particularly limited.

The proximity sensor can sense the distance between the terminal equipment and an object, so that the terminal equipment can realize on-off control of the display screen. That is, the terminal device may control the terminal device to turn off or turn on the screen according to the distance between the terminal device and the object detected by the proximity sensor. In general, the proximity sensor may be an infrared light-based proximity sensor, and the proximity sensor may be composed of an infrared light emitter, which may also be referred to as an infrared light source, and an infrared light detector, which may also be referred to as an infrared detector. The present application is not limited to the kind of the proximity sensor.

Terminal equipment can have communication function, and when the user used this terminal equipment to converse, proximity sensor can gather the distance of terminal equipment and user's ear, if the distance of terminal equipment and ear is less than (or equals) the distance that sets up in advance, then terminal equipment can extinguish the display screen, can reduce terminal equipment's consumption. Similarly, when the user finishes the call, the proximity sensor can also collect the distance between the terminal device and the ear of the user, and if the distance between the terminal device and the ear is greater than (or equal to) the preset distance, the terminal device can light up the display screen.

In this application embodiment, the display screen of the terminal device may also be a touch screen, and when the 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) the preset first distance, the terminal device may extinguish the display screen, that is, the terminal device enters the proximity state, and at this time, the touch operation of the user on the touch screen is no longer received, so that various misoperation caused by accidental touch on the display screen can be avoided. Similarly, if the terminal device is at a distance from the ear that is greater than (or equal to) the preset second distance, the terminal device may illuminate the display, i.e., the terminal device enters the away state.

For example, in the present application, the preset first distance may be 2 centimeters (cm), and the preset second distance may be 5cm, in which case, when the distance between the terminal device and the approaching object is less than or equal to 2cm, the terminal device enters the approaching state, and when the distance between the terminal device and the approaching object is greater than or equal to 5cm, the terminal device enters the distant state.

If the terminal equipment has a communication function, when a user uses the terminal equipment to carry out communication, the proximity sensor can more accurately determine that an object is close to or far away from the display screen of the terminal equipment.

When an object approaches the display screen of the terminal equipment or approaches the cover glass, light emitted by the infrared light emitter penetrates through the cover glass and then is reflected by the approaching object, and reflected infrared light penetrates through the cover glass and is received by the infrared light detector. The infrared light emitted by the infrared light emitter and reflected by the receiving object and received by the infrared light detector may be referred to as a near-object reflected light. In the process, part of infrared light emitted by the infrared light emitter cannot penetrate through the cover glass, but is reflected by the cover glass and then received by the infrared light detector, and the part of infrared light can be regarded as background noise, is much less than the infrared light reflected by a close object, and can be called as non-close object reflected light. An object that is close to the display screen of the terminal device may be referred to herein as a proximity object.

When no object approaches the display screen of the terminal device, only part of infrared light reflected by the cover glass can be considered to be detected by the infrared light detector in the infrared light emitted by the infrared light emitter. That is, it can be understood that, of the infrared light received by the infrared detector, there is no infrared light reflected by an approaching object, and only the infrared light reflected by the cover glass.

Generally, the closer the proximity object is to the display screen of the terminal device, the stronger the infrared light energy captured by the infrared light detector is. Therefore, the distance between the object and the display screen of the terminal equipment can be determined through the infrared light energy (or the infrared light energy intensity) captured by the infrared light detector, and the terminal equipment can be judged to be in a close state or a far state according to the distance. Or, it can be said that, according to the energy of the infrared light detected by the infrared light detector, it can be determined whether the terminal device is in a close state or a far state relative to the object, so that the terminal device can be controlled to turn off or turn on the screen.

For example, when the intensity of infrared light detected by the infrared detector is greater than or equal to a certain preset threshold, it may be determined that the terminal device is in a proximity state; when the intensity of the infrared light detected by the infrared detector is less than a certain preset threshold value, it can be determined that the terminal device is in a far 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, and many more modules or units may be included therein, and meanwhile, the positions of the respective modules or units in the terminal device 200 shown in fig. 2 are only examples and are not limited.

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, including a display area 218 and a non-display area 216; the infrared light emitter 220 is located in the non-display area 216 and is configured to emit a detection signal with a first preset radiation intensity; the infrared light detector 230 is located in the display area 218 and is used for receiving a reflection signal; the distance between the infrared light emitter 220 and the infrared light detector 230 is in a second preset range.

It should be understood that the "inner" in "display screen and the" outer "in" display screen "described in the embodiments of the present application are the same as the orientations indicated by the" inner "in" terminal device and the "outer" in "terminal device, respectively.

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

Alternatively, the infrared light emitter 220 and the infrared light detector 230 belong to a proximity sensor of the terminal device 200, which 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 enlarged, thereby further improving the screen occupation 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 earpiece 201 and the camera 202 may be disposed within the display screen 210 and located in the display area 218, thereby further improving the screen occupation ratio of the terminal device 200.

Generally, the infrared light emitter 220 and the infrared light detector 230 may be packaged together to form a proximity sensor assembly, and in the embodiment of the present application, the infrared light emitter 220 may be separated from the proximity sensor assembly, so that the infrared light detector 230 may be disposed in the display area 218 of the display screen 210, thereby improving the screen occupation 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 emitter 220 needs to be increased, so that the infrared light detector 230 can receive the reflected signal incident from outside the display screen to the display screen, and thus the function of the sensor can be kept normal.

The proximity sensor 300 in fig. 3 is an example of a sensor component according to an embodiment of the present disclosure, and as shown in fig. 3, a pin SCL of the proximity sensor 300 is a clock bus port, and may be connected to a pin SCL of a processor in a terminal device; the pin SDA is a data bus port and can be connected with the pin SDA of a processor in the terminal equipment; the pin INT is an interrupt port and can be connected with the pin INT of a processor in the terminal equipment; the pin VDD is a working voltage port and can be connected with working voltage inside the proximity sensor; a pin GND is a grounding port, and a pin PGND is a protection grounding port; the pin LDR is a current driving port and can be connected to a negative electrode (or called a cathode) of the infrared light emitter 220, and the LEDA represents a positive electrode (or called an anode) of the infrared light emitter 220 and can be connected to a supply voltage VCC of an internal circuit of the terminal device.

Wherein, infrared light detector 230 encapsulates in proximity sensor 300's inside, and infrared light detector 230's positive pole ground connection, infrared light detector 230's negative pole passes through other components and parts or modules, is connected with pin SCL and pin SDA, and prior art can be referred to specific connected mode, and this application is no longer repeated.

As can be seen from fig. 3, the cathode of the infrared light emitter 220 may 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 emitter 220 may be connected to the power supply voltage VCC of the internal circuit of the terminal device, at this time, the infrared light emitter 220 may be separated from the proximity sensor 300, so that the infrared light emitter 220 may be disposed in the display area 218 of the display screen 210, and the infrared light detector 230 may be disposed in the non-display area 216 of the display screen 210.

In the proximity sensor 300 according to the embodiment of the present application, the infrared light emitter 220 may be separated from the proximity sensor, so that the infrared light emitter 220 is connected to the infrared light detector 230 outside the infrared light detector 230, and the configuration of the proximity sensor may be 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 in a radiation range of a reflection signal incident from outside the display screen to the display screen, so that the infrared light detector 230 can receive the reflection 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 area 218 of the display screen 210, and an 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.

An infrared light emitter 220, located in the non-display area 216 and located inside the display screen 210, for emitting a detection signal with a first preset radiation intensity; an infrared light detector 230 located in the display area 218 and inside the display screen 210 for receiving the reflected signal; the distance between the signal emitter and the signal detector is in a second preset range.

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

Alternatively, 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 emitter 220 and the infrared light detector 230 are fixed on the circuit board 260. For example, the infrared light emitter 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 (FPC) or a Printed Circuit Board (PCB).

Optionally, the terminal device 200 may further include a light shielding layer 240, and the light shielding layer 240 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, the light shielding layer 240 may be provided with a through hole 250, and the infrared light detector 230 is located within 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 formed by reflecting infrared light emitted from the infrared light emitter 220 by an external object, and the reflected light may be formed by reflecting infrared light emitted from the infrared light emitter 220 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 inside the cover glass 212.

Optionally, centers of the signal emitter and the signal detector are on a straight line. As shown in fig. 1. Of course, the centers of the signal emitter and the signal detector may not be in a straight line, and the signal detector is in a possible area of the reflected light to ensure that the reflected light can be received.

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

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

For example, in order to turn off or turn on the display screen at a predetermined distance, the proximity sensor is required to sense the proximity object when the proximity sensor is spaced apart from the terminal device by the predetermined distance, that is, the performance of the proximity sensor is required to be realized to sense the proximity object at the predetermined distance.

The performance of a proximity sensor may be manifested by a signal to noise ratio (SNR) of the proximity sensor. Therefore, in order for the proximity sensor to 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 close state when the distance from the close object is less than or equal to 2cm and enter the distant state when the distance from the close object is greater than or equal to 5cm, 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 determined by the energy value of the reflected light 219 from the proximity object received by the infrared light detector 230, the energy value of the reflected light 217 from the non-proximity object received by the infrared light detector 230, and the data jitter of the infrared light detector 230. The data jitter of the infrared light detector 230 refers to the offset error of the infrared light detector, and is determined by the performance of the components of the infrared light detector 230. The data jitter of the infrared light detector 230 is a fixed value.

Specifically, SNR ═ pdata-crosstalk/jitter. Where pdata represents the energy value of the near object reflected light 219 received by the infrared light detector 230, crosstalk represents the energy value of the non-near object reflected light 217 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 emitter and the infrared transmittance of the display screen, etc. The higher the radiation intensity of the infrared light emitter is and the higher the infrared light transmittance of the display screen is, the larger pdata is; conversely, the smaller pdata.

crosstalk is related to the radiation intensity of the infrared light emitter, the infrared light transmittance of the display screen, the distance between the infrared light emitter and the infrared light detector, and the like. The larger the radiation intensity of the infrared light emitter is, the lower the infrared light transmittance of the display screen is, and the closer the distance between the infrared light emitter and the infrared light detector is, the larger the crosstalk is; conversely, the smaller the crosstalk.

The following describes, with reference to fig. 5, how to take the distance between the infrared light emitter and the infrared light detector and how the radiation intensity of the infrared light emitter should be taken as a value, so that the SNR of the proximity sensor can meet the requirement, and thus the performance of the proximity sensor meets the requirement, and finally the terminal device can extinguish or light 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 under the cover glass 212 and the display panel 214 of the display area 218, and the infrared light emitter 220 is located under the cover glass 212 and/or the ink layer 213 of the non-display area 216. Therefore, 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 transmittance of the same medium is related to the infrared reflectance, and generally, the higher the infrared transmittance, the lower the infrared reflectance. For example, taking the cover glass as an example, if the infrared light transmittance of the cover glass is higher, the infrared light reflectance of the cover glass is lower; the lower the infrared light transmittance of the cover glass is, the higher the infrared light reflectance of the cover glass is. Thus, pdata and crosstalk can also be considered to be related to the infrared reflectance of the display screen (including the display panel, cover glass and/or ink layer).

Based on the above description, the effects 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 following table. The infrared transmittance herein refers to the infrared transmittance of the cover glass, the display panel and/or the ink layer.

The infrared transmittance of the display panel is related to the routing density and material of the display circuit of the display panel. Generally speaking, for display panels made of the same material, the higher the resolution of the display panel is, the denser the routing of the display circuit is, and the lower the infrared transmittance is; conversely, the higher the infrared transmittance. At present, the infrared light transmittance of the display panel is far lower than that of the cover glass and the ink layer.

In the terminal device of the embodiment of the present application, since the infrared detector is located inside the cover glass and the display panel in the display area, that is, the infrared light received by the infrared detector needs to pass through the display panel, and the infrared transmittance of the display panel is smaller, which may cause pdata to become smaller and crosstalk to become larger, in order to make the SNR of the proximity sensor in the embodiment of the present application not smaller than the SNR of the proximity sensor in the prior art, pdata may be increased and/or crosstalk may be decreased. In the prior art proximity sensors described herein, both the infrared light emitter and the infrared light detector are located in the non-display area of the display screen.

To increase pdata, the radiation intensity of the infrared emitter can be increased. For example, the radiation intensity of the infrared light emitter may be increased by a factor of 3 to 4. For example, if the infrared light source has a power of 2 milliwatts per steradian (mW/sr) when the infrared light detector is located in the non-display area of the display screen, the radiation intensity of the infrared light emitter in the embodiment of the present application may be increased to above 6 mW/sr.

To reduce crosstalk, the distance between the infrared light detector and the infrared light emitter may be increased. For example, the distance between the infrared light detector and the infrared light emitter may be increased to 2mm or more, 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 emitter is increased to increase pdata, the crosstalk is also increased accordingly. Therefore, when the radiation intensity of the infrared light emitter is increased to increase pdata, the distance between the infrared light detector and the infrared light emitter can be increased to reduce crosstalk, so that the SNR of the proximity sensor can be better ensured to be not less than that of the proximity sensor in the prior art.

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

The first predetermined radiation intensity and the second predetermined range may be obtained by finite element method simulation. For example, the radiation intensity of the infrared light emitter and the distance between the infrared light emitter and the infrared light detector may be continuously adjusted by simulation software until the SNR calculated according to the energy value pdata of the reflected light of the near object received by the infrared light detector, the energy value crosstalk of the reflected light of the non-near object received by the infrared light detector, and the data jitter of the infrared light detector is greater than or equal to the preset SNR threshold. The radiation intensity of the infrared light emitter is the first preset radiation intensity, and the distance between the infrared light emitter and the infrared light detector is the second preset range.

For example, in order to ensure that the SNR of the proximity sensor in the embodiment of the present application is not less than 5, the distance between the infrared light detector and the infrared light emitter may be increased to 2mm or more while the radiation intensity of the infrared light emitter is increased by 3 to 4 times with respect to the radiation intensity of the infrared light emitter in the existing terminal device.

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

For example, when the radiation intensity of the infrared light emitter in the existing terminal device is 2mW/sr, the distance between the infrared light emitter and the infrared light detector is 1 to 2mm, and the SNR is not less than 5, finite element simulation is performed based on these data, and the following results can be obtained: 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 range may be less than or equal to 6 mm. Therefore, the terminal equipment of the embodiment of the application can extinguish or light the display screen at a preset distance. The predetermined distance may be the same as the distance that the terminal device extinguishes or lights the display screen in the related art.

Since the infrared light actually detected by the infrared light detector of the terminal device usually includes the energy value (pdata) of the reflected light from the near object and the energy value (crosstalk) of the reflected light from the non-near object, the energy value (crosstalk0) of the reflected light from the non-near object is preset in the terminal device according to the distance between the infrared light detector and the infrared light emitter.

For example, when the distance between the infrared light detector and the infrared light emitter is 5mm, crosstalk0 corresponding to 5mm is preset in the terminal device. Crosstalk0 corresponding to 5mm means: when the distance between the infrared detector and the infrared light emitter is 5mm, the energy value of the reflected light of the non-proximity object is not close to the energy value of the reflected light of the object.

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

The pdata1 is the preset energy value of the light reflected by the proximity object when the terminal device is in the close state, and the pdata2 is the preset energy value of the infrared light reflected by the proximity object when the terminal device is in the far state. Alternatively, pdata1 and pdata2 may be equal.

However, in the actual assembly process, due to the problems of accuracy or process level of the installation equipment, etc., the positions of the infrared light emitter and the infrared light detector in the terminal equipment are deviated during installation, so that the actual installation distance between the infrared light emitter and the infrared light detector is deviated from the expected installation distance, that is, the actual installation distance between the infrared light detector and the infrared light emitter is not equal to the expected installation distance between the infrared light detector and the infrared light emitter. For example, the desired mounting distance between the infrared light detector and the infrared light emitter is 5mm, but the actual mounting distance between the infrared light detector and the infrared light emitter may be only 4.9mm, with a deviation of 0.1mm compared to 5 mm.

Because the energy values of the reflected light of the non-close object corresponding to different distances between the infrared light detector and the infrared light emitter are different, when the actual installation distance between the infrared light emitter and the infrared light detector deviates from the expected installation distance, the energy value of the light of the non-close object in the infrared light actually detected by the infrared light detector deviates from the energy value of the light of the non-close object preset in the terminal equipment. In this case, if the energy value of the non-near object light is preset in the terminal device according to the expected installation distance between the infrared light emitter and the infrared light detector, the energy value of the near object light calculated by the terminal device according to the energy value may be inaccurate.

In order to solve the problem, the application provides a method for controlling a terminal device. The method comprises the following steps: when infrared light emitted by an infrared light emitter of the terminal equipment is not reflected by an external object, an infrared light detector of the terminal equipment detects the infrared light, energy values of the detected infrared light are preset as energy values of light rays of a non-proximity object, and the terminal equipment is controlled to extinguish or lighten a screen according to the preset energy values of the light rays of the non-proximity object.

The terminal device presets the energy value of the light ray of the non-close object through the method, controls the terminal device to extinguish or lighten the screen according to the preset energy value of the light ray of the non-close object, and can improve the accuracy of the terminal device to extinguish or lighten the screen.

The method for controlling the terminal device according to one embodiment of the present application may include the following three steps.

The method comprises the following steps: the method comprises the steps of obtaining a first value, wherein the first value is an energy value of infrared light detected by an infrared light detector of the terminal equipment when the infrared light emitted by an infrared light emitter of the terminal equipment is not reflected by an external object.

The first value may be an energy value of infrared light detected by an infrared light detector of the terminal device when the infrared light emitted by an infrared light emitter of the terminal device is not reflected by an external object, and the energy value is preset in the terminal device as an energy value of light of a non-proximity 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 by the infrared light detector after the infrared light detector detects infrared light when the infrared light emitted by the infrared light emitter is not reflected by an external object under the condition that no object is shielded above the display screen of the terminal device. Since there is no object in proximity above the display screen, the first value here is the energy of the light reflected by the non-proximity object. 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 a mounting deviation, the first value may have a larger deviation than the energy value of the infrared light reflected by the non-close object corresponding to the preset mounting distance between the infrared light detector and the infrared light emitter.

Step two: and acquiring a second value, wherein the second value is an energy value of infrared light detected by an infrared light detector of the terminal equipment when the infrared light emitted by an infrared light emitter of the terminal equipment is reflected by an external object.

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

It should be understood that the second value is a value output by the infrared light detector after infrared light emitted by the infrared light emitter is reflected by an external object and the infrared light is detected by the infrared light detector under the condition that an object is shielded above the display screen of the terminal device. At this time, there is a near object above the display screen, and therefore, the second value is the sum of the energies of the light reflected by the near object and the light reflected by the non-near object. That is to say, the second value includes the infrared light detected by the infrared light detector after the infrared light emitted by the infrared light emitter of the terminal device is reflected by the approaching object, and also includes the infrared light detected by the infrared light detector after the infrared light is directly reflected by the cover glass, the ink or the display panel without being reflected by the approaching object.

Step three: and controlling the terminal equipment to extinguish or lighten the display screen according to the first value and the second value.

In some possible implementations, the terminal device may be controlled to turn off the display screen or turn on 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 a first threshold value, the terminal device is controlled to extinguish the display screen; and when the third value is smaller than or equal to a second threshold value, controlling the terminal equipment to light up a display screen.

For example, the terminal device may save an energy value (first threshold value) of infrared light corresponding to a distance to enter the proximity state, which is set in advance. For example, when the distance between the display screen of the terminal device and the approaching object is less than or equal to 2cm, the terminal device enters the approaching state, that is, the display screen is turned off, and the terminal device may store the energy value of only the infrared light reflected by the approaching object as the first threshold value when the distance between the display screen of the terminal device and the approaching object is 2 cm.

When determining whether the terminal device is in the proximity state, the infrared light detector may subtract the first value from an energy value (i.e., the second value) of the infrared light detected in real time, compare an obtained third value with a pre-stored first threshold, and control the terminal device to enter the proximity state, i.e., turn off the display screen, when the third value is greater than or equal to the first threshold.

For example, the terminal device may hold an energy value (second threshold value) of infrared light corresponding to a distance into the distant state set in advance. For example, when the distance between the display screen of the terminal device and the approaching object is greater than or equal to 5cm, the terminal device enters the distant state, that is, the display screen is turned on, and the terminal device may store, as the distance between the display screen of the terminal device and the approaching object is 5cm, the energy value of only the infrared light reflected by the approaching object as the second threshold.

When determining whether the terminal device is in the remote state, the terminal device may be controlled to enter the remote state, that is, to light the display screen, by subtracting the first value from the energy value (that is, the second value) of the infrared light detected by the infrared light detector in real time, comparing the obtained third value with a second threshold value stored in advance, and when the third value is less than or equal to the second threshold value.

Optionally, whether the terminal device is qualified or not may be tested by the method for controlling the terminal device described above. It should be understood that the test procedure herein may be a test performed before the terminal device leaves a factory, for example, before the terminal device leaves the factory, whether the terminal device can enter the approaching state and/or the departing state at a predetermined distance is detected. The method for testing the terminal equipment comprises the following four steps.

Step one, starting an approach light test.

First, the light test software is started. Alternatively, the proximity optical test software may be an Application (APP) installed in the terminal device.

After the proximity sensor of the terminal equipment is installed, the proximity light test can be carried out on the terminal equipment, namely whether the terminal equipment can enter a proximity state and a far-away state within a preset distance range is tested.

For example, if the distance between the terminal device and the object is within the preset distance range and the terminal device is in the approaching state, it is indicated that the approaching state of the terminal device is qualified; otherwise, the product is not qualified. If the distance between the terminal equipment and the object is greater than or equal to a preset distance threshold value, and the terminal equipment is in a far-away state, the far-away state of the terminal equipment is qualified; otherwise, the product is not qualified.

And step two, testing the approaching state of the terminal equipment approaching sensor.

For example, the distance between the approaching object and the display screen of the terminal device may be gradually reduced. In this process the terminal device performs three steps of the aforementioned method of controlling the terminal device a plurality of times. And specifically, acquiring a first value and a second value, subtracting the first value from the second value to obtain a third value, and comparing the third value with a pre-stored first threshold value. One comparison result of the third value and the first threshold is that the third value is smaller than the first threshold, and the other comparison result is that the third value is greater than or equal to the first threshold.

If "0" indicates that the third value is smaller than the first threshold value, and "1" indicates that the third value is greater than or equal to the first threshold value, when the comparison result obtained by the proximity optical test software is changed from "0" to "1", the distance between the proximity object and the display screen of the terminal device is measured, and whether the difference between the distance and the preset distance threshold value meets the preset condition is judged.

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

And step three, testing the far state of the terminal equipment approaching sensor.

For example, the distance between the approaching object and the display screen of the terminal device may be gradually increased. In this process the terminal device performs three steps of the aforementioned method of controlling the terminal device a plurality of times. And specifically, acquiring a first value and a second value, subtracting the first value from the second value to obtain a third value, and comparing the third value with a pre-stored second threshold value. One comparison result of 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" indicates that the third value is greater than the second threshold value, and "0" indicates that the third value is less than or equal to the second threshold value, when the comparison result obtained by the proximity optical test software is changed from "1" to "0", the distance between the proximity object and the display screen of the terminal device is measured, and whether the difference between the distance and the preset distance threshold value meets the preset condition is judged.

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

And step four, ending the near light test.

If the terminal equipment enters the approaching state at the preset distance entering the approaching state and enters the far state at the preset distance entering the far state, the terminal equipment approaches the light test qualification; otherwise, the approach light test of the terminal equipment is unqualified.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

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

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A terminal device, characterized in that the terminal device comprises a display screen and a sensor assembly;

the display screen comprises a display area and a non-display area;

the sensor assembly includes a signal emitter and a signal detector;

the signal emitter is positioned in the non-display area and used for emitting a detection signal with a first preset radiation intensity;

the signal detector is positioned in the display area and used for receiving the reflected signal;

the distance between the signal emitter and the signal detector is in a second preset range.

2. The terminal device of claim 1, wherein the reflected signal comprises a reflected signal incident on the display screen from outside the display screen.

3. A terminal device according to claim 1 or 2, wherein the first predetermined radiation intensity is greater than 7 milliwatts per steradian.

4. A terminal device according to any of claims 1 to 3, wherein the second predetermined range is greater than 2mm and less than or equal to 6 mm.

5. The terminal device according to any one of claims 1 to 4, wherein the terminal device further comprises:

the circuit board, signal emitter and signal detector are fixed on the circuit board.

6. The terminal device according to any one of claims 1 to 5, characterized in that the terminal device further comprises:

and the shading layer is arranged between the display screen and the signal detector.

7. The terminal device according to any one of claims 1 to 6, wherein the terminal device further comprises:

the shading layer is provided with a through hole, and the signal detector is located in the range of the through hole.

8. A terminal device according to any one of claims 1 to 7, wherein the centres of the signal transmitter and the signal detector are on a straight line.