KR20230057608A - Method and electronic device for proximity sensing - Google Patents

Abstract

The present invention provides an electronic device which can be designed to allow a proximity sensing function based on a UDC and a display to have high accuracy. According to various embodiments of the present invention, the electronic device comprises: a display module including at least one pixel; a camera module arranged on the rear surface of the display module; a memory storing a light source reference value corresponding to at least one light source; and a processor operatively connected to the display module, the camera module, and the memory. The processor emits at least one light source based on the at least one pixel through the display module, acquires a reflection light source obtained as the at least one light source is reflected by an object through the camera, checks a reflection value corresponding to the at least one light source based on the acquired reflection light source, removes noise included in the reflection light source based on the checked reflection value and the light source reference value stored in the memory, and determines the status of proximity to the object based on the reflection light source from which the noise is removed. Various other embodiments are possible.

Description

Proximity sensing method and electronic device {METHOD AND ELECTRONIC DEVICE FOR PROXIMITY SENSING}

Various embodiments of the present disclosure relate to a proximity sensing method and an electronic device.

Electronic devices, for example, portable electronic devices, are released in various sizes according to their functions and user preferences. The electronic device may include a large screen touch display to secure wide visibility and improve convenience of operation. The electronic device may include, as an optical module, at least one camera module (eg, an under display camera (UDC)) disposed under a display in an internal space. At least one camera module may be disposed below the display to capture an external subject by passing through at least a portion of the display.

An electronic device performing a call function may at least partially contact a user's ear with an area where a speaker is disposed by a user, and may require a proximity sensing function to detect this.

Electronic devices may use a proximity sensor for proximity sensing, but due to a large-screen display (eg, a display with an extended screen display area), there may be restrictions on the placement of the proximity sensor. When the proximity sensor is disposed below the display, sensing performance may deteriorate due to a decrease in transmittance and a problem of emission noise of the display. In addition, when designing an electronic device, since a proximity sensor is added, production cost may increase.

Various embodiments of the present disclosure may provide a method and an electronic device for performing a proximity sensing function using a UDC disposed under a display.

According to various embodiments, an electronic device may include a display module including at least one pixel, a camera disposed on a rear surface of the display module, a memory configured to store a light source reference value corresponding to at least one light source, the display module, and the display module. a camera and a processor operatively coupled to the memory. The processor emits at least one light source based on the at least one pixel through the display module, acquires a reflected light source reflected by the at least one light source through the camera, and Based on the reflective light source, a reflection value corresponding to the at least one light source is identified, noise included in the reflective light source is removed based on a light source reference value stored in the memory and the checked reflection value, and the noise is Proximity to the object may be determined based on the removed reflected light source.

In the method according to various embodiments, an operation of emitting at least one light source based on at least one pixel through a display module, and obtaining a reflected light source reflected by an object through a camera module. An operation of checking a reflection value corresponding to the at least one light source based on the acquired reflection light source, and removing noise included in the reflection light source based on a light source reference value stored in a memory and the checked reflection value. and determining proximity to the object based on the reflective light source from which the noise has been removed.

In various embodiments of the present disclosure, a light source emitted from a display may be reflected as reflected light by an object (eg, a human body), and the reflected light may be received through a camera (eg, UDC) disposed below the display. The electronic device may sense the proximity of an object by using the reflected light.

According to an embodiment, the display may be designed such that a partial area of the display corresponding to the camera arrangement area has high transmittance. Due to this, accuracy of proximity sensing may be improved. According to an embodiment, since the UDC performs a proximity sensing function, costs due to disposing of a separate proximity sensor do not occur, and a space in which a separate proximity sensor is disposed can be secured. According to an embodiment, an electronic device may be designed to have a display and a proximity sensing function based on UDC with high accuracy. In addition to this, various effects identified directly or indirectly through this document may be provided.

In connection with the description of the drawings, the same or similar reference numerals may be used for the same or similar elements.
1 is a block diagram of an electronic device in a network environment according to various embodiments of the present disclosure.
2 is an exemplary diagram illustrating an under display camera (UDC) disposed under a display module according to various embodiments of the present disclosure.
3 is a block diagram of an electronic device according to various embodiments of the present disclosure.
4 is a flowchart illustrating a proximity sensing method using a display module and a camera module according to various embodiments of the present disclosure.
5 is a flowchart illustrating a method of obtaining a reference value for removing noise according to various embodiments of the present disclosure.
6 is an exemplary diagram illustrating a situation in which a first area of a display module is covered by a reflector according to various embodiments of the present disclosure.
7 is a flowchart illustrating a situation in which a proximity sensing function is performed when a call is received according to various embodiments of the present disclosure.
8 is a time table illustrating a situation in which each component performs a proximity sensing function when a call is received according to various embodiments of the present disclosure.
9 is an exemplary diagram illustrating a situation in which a certain percentage of pixels are covered based on a plurality of pixels included in a display module according to various embodiments of the present disclosure.
10 is a flowchart illustrating a method of determining proximity of an object according to execution of a proximity sensing function according to various embodiments of the present disclosure.

1 is a block diagram of an electronic device 101 within a network environment 100, according to various embodiments. Referring to FIG. 1 , in a network environment 100, an electronic device 101 communicates with an electronic device 102 through a first network 198 (eg, a short-range wireless communication network) or through a second network 199. It may communicate with at least one of the electronic device 104 or the server 108 through (eg, a long-distance wireless communication network). According to one embodiment, the electronic device 101 may communicate with the electronic device 104 through the server 108 . According to an embodiment, the electronic device 101 includes a processor 120, a memory 130, an input module 150, an audio output module 155, a display module 160, an audio module 170, a sensor module ( 176), interface 177, connection terminal 178, haptic module 179, camera module 180, power management module 188, battery 189, communication module 190, subscriber identification module 196 , or the antenna module 197 may be included. In some embodiments, in the electronic device 101, at least one of these components (eg, the connection terminal 178) may be omitted or one or more other components may be added. In some embodiments, some of these components (eg, sensor module 176, camera module 180, or antenna module 197) are integrated into a single component (eg, display module 160). It can be.

The processor 120, for example, executes software (eg, the program 140) to cause at least one other component (eg, hardware or software component) of the electronic device 101 connected to the processor 120. It can control and perform various data processing or calculations. According to one embodiment, as at least part of data processing or operation, processor 120 transfers instructions or data received from other components (e.g., sensor module 176 or communication module 190) to volatile memory 132. , processing commands or data stored in the volatile memory 132 , and storing resultant data in the non-volatile memory 134 . According to one embodiment, the processor 120 includes a main processor 121 (eg, a central processing unit or an application processor) or a secondary processor 123 (eg, a graphic processing unit, a neural network processing unit ( NPU: neural processing unit (NPU), image signal processor, sensor hub processor, or communication processor). For example, when the electronic device 101 includes the main processor 121 and the auxiliary processor 123, the auxiliary processor 123 may use less power than the main processor 121 or be set to be specialized for a designated function. can The secondary processor 123 may be implemented separately from or as part of the main processor 121 .

The secondary processor 123 may, for example, take the place of the main processor 121 while the main processor 121 is in an inactive (eg, sleep) state, or the main processor 121 is active (eg, running an application). ) state, together with the main processor 121, at least one of the components of the electronic device 101 (eg, the display module 160, the sensor module 176, or the communication module 190) It is possible to control at least some of the related functions or states. According to one embodiment, the auxiliary processor 123 (eg, an image signal processor or a communication processor) may be implemented as part of other functionally related components (eg, the camera module 180 or the communication module 190). there is. According to an embodiment, the auxiliary processor 123 (eg, a neural network processing device) may include a hardware structure specialized for processing an artificial intelligence model. AI models can be created through machine learning. Such learning may be performed, for example, in the electronic device 101 itself where the artificial intelligence model is performed, or may be performed through a separate server (eg, the server 108). The learning algorithm may include, for example, supervised learning, unsupervised learning, semi-supervised learning or reinforcement learning, but in the above example Not limited. The artificial intelligence model may include a plurality of artificial neural network layers. Artificial neural networks include deep neural networks (DNNs), convolutional neural networks (CNNs), recurrent neural networks (RNNs), restricted boltzmann machines (RBMs), deep belief networks (DBNs), bidirectional recurrent deep neural networks (BRDNNs), It may be one of deep Q-networks or a combination of two or more of the foregoing, but is not limited to the foregoing examples. The artificial intelligence model may include, in addition or alternatively, software structures in addition to hardware structures.

The memory 130 may store various data used by at least one component (eg, the processor 120 or the sensor module 176) of the electronic device 101 . The data may include, for example, input data or output data for software (eg, program 140) and commands related thereto. The memory 130 may include volatile memory 132 or non-volatile memory 134 .

The program 140 may be stored as software in the memory 130 and may include, for example, an operating system 142 , middleware 144 , or an application 146 .

The input module 150 may receive a command or data to be used by a component (eg, the processor 120) of the electronic device 101 from the outside of the electronic device 101 (eg, a user). The input module 150 may include, for example, a microphone, a mouse, a keyboard, a key (eg, a button), or a digital pen (eg, a stylus pen).

The sound output module 155 may output sound signals to the outside of the electronic device 101 . The sound output module 155 may include, for example, a speaker or a receiver. The speaker can be used for general purposes such as multimedia playback or recording playback. A receiver may be used to receive an incoming call. According to one embodiment, the receiver may be implemented separately from the speaker or as part of it.

The display module 160 may visually provide information to the outside of the electronic device 101 (eg, a user). The display module 160 may include, for example, a display, a hologram device, or a projector and a control circuit for controlling the device. According to an embodiment, the display module 160 may include a touch sensor configured to detect a touch or a pressure sensor configured to measure the intensity of force generated by the touch.

The audio module 170 may convert sound into an electrical signal or vice versa. According to an embodiment, the audio module 170 acquires sound through the input module 150, the sound output module 155, or an external electronic device connected directly or wirelessly to the electronic device 101 (eg: Sound may be output through the electronic device 102 (eg, a speaker or a headphone).

The sensor module 176 detects an operating state (eg, power or temperature) of the electronic device 101 or an external environmental state (eg, a user state), and generates an electrical signal or data value corresponding to the detected state. can do. According to one embodiment, the sensor module 176 may include, for example, a gesture sensor, a gyro sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an infrared (IR) sensor, a bio sensor, It may include a temperature sensor, humidity sensor, or light sensor.

The interface 177 may support one or more designated protocols that may be used to directly or wirelessly connect the electronic device 101 to an external electronic device (eg, the electronic device 102). According to one embodiment, the interface 177 may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

The connection terminal 178 may include a connector through which the electronic device 101 may be physically connected to an external electronic device (eg, the electronic device 102). According to one embodiment, the connection terminal 178 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector).

The haptic module 179 may convert electrical signals into mechanical stimuli (eg, vibration or motion) or electrical stimuli that a user may perceive through tactile or kinesthetic senses. According to one embodiment, the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

The camera module 180 may capture still images and moving images. According to one embodiment, the camera module 180 may include one or more lenses, image sensors, image signal processors, or flashes.

The power management module 188 may manage power supplied to the electronic device 101 . According to one embodiment, the power management module 188 may be implemented as at least part of a power management integrated circuit (PMIC), for example.

The battery 189 may supply power to at least one component of the electronic device 101 . According to one embodiment, the battery 189 may include, for example, a non-rechargeable primary cell, a rechargeable secondary cell, or a fuel cell.

The communication module 190 is a direct (eg, wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (eg, the electronic device 102, the electronic device 104, or the server 108). Establishment and communication through the established communication channel may be supported. The communication module 190 may include one or more communication processors that operate independently of the processor 120 (eg, an application processor) and support direct (eg, wired) communication or wireless communication. According to one embodiment, the communication module 190 may be a wireless communication module 192 (eg, a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 194 (eg, a : a local area network (LAN) communication module or a power line communication module). Among these communication modules, a corresponding communication module is a first network 198 (eg, a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network 199 (eg, legacy It may communicate with the external electronic device 104 through a cellular network, a 5G network, a next-generation communication network, the Internet, or a telecommunications network such as a computer network (eg, a LAN or a WAN). These various types of communication modules may be integrated as one component (eg, a single chip) or implemented as a plurality of separate components (eg, multiple chips). The wireless communication module 192 uses subscriber information (eg, International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module 196 within a communication network such as the first network 198 or the second network 199. The electronic device 101 may be identified or authenticated.

The wireless communication module 192 may support a 5G network after a 4G network and a next-generation communication technology, for example, NR access technology (new radio access technology). NR access technologies include high-speed transmission of high-capacity data (enhanced mobile broadband (eMBB)), minimization of terminal power and access of multiple terminals (massive machine type communications (mMTC)), or high reliability and low latency (ultra-reliable and low latency (URLLC)). -latency communications)) can be supported. The wireless communication module 192 may support a high frequency band (eg, mmWave band) to achieve a high data rate, for example. The wireless communication module 192 uses various technologies for securing performance in a high frequency band, such as beamforming, massive multiple-input and multiple-output (MIMO), and full-dimensional multiplexing. Technologies such as input/output (FD-MIMO: full dimensional MIMO), array antenna, analog beam-forming, or large scale antenna may be supported. The wireless communication module 192 may support various requirements defined for the electronic device 101, an external electronic device (eg, the electronic device 104), or a network system (eg, the second network 199). According to one embodiment, the wireless communication module 192 is a peak data rate for eMBB realization (eg, 20 Gbps or more), a loss coverage for mMTC realization (eg, 164 dB or less), or a U-plane latency for URLLC realization (eg, Example: downlink (DL) and uplink (UL) each of 0.5 ms or less, or round trip 1 ms or less) may be supported.

The antenna module 197 may transmit or receive signals or power to the outside (eg, an external electronic device). According to an embodiment, the antenna module 197 may include an antenna including a radiator formed of a conductor or a conductive pattern formed on a substrate (eg, PCB). According to one embodiment, the antenna module 197 may include a plurality of antennas (eg, an array antenna). In this case, at least one antenna suitable for a communication method used in a communication network such as the first network 198 or the second network 199 is selected from the plurality of antennas by the communication module 190, for example. can be chosen A signal or power may be transmitted or received between the communication module 190 and an external electronic device through the selected at least one antenna. According to some embodiments, other components (eg, a radio frequency integrated circuit (RFIC)) may be additionally formed as a part of the antenna module 197 in addition to the radiator.

According to various embodiments, the antenna module 197 may form a mmWave antenna module. According to one embodiment, the mmWave antenna module includes a printed circuit board, an RFIC disposed on or adjacent to a first surface (eg, a lower surface) of the printed circuit board and capable of supporting a designated high frequency band (eg, mmWave band); and a plurality of antennas (eg, array antennas) disposed on or adjacent to a second surface (eg, a top surface or a side surface) of the printed circuit board and capable of transmitting or receiving signals of the designated high frequency band. can do.

At least some of the components are connected to each other through a communication method between peripheral devices (eg, a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)) and signal ( e.g. commands or data) can be exchanged with each other.

According to an embodiment, commands or data may be transmitted or received between the electronic device 101 and the external electronic device 104 through the server 108 connected to the second network 199 . Each of the external electronic devices 102 or 104 may be the same as or different from the electronic device 101 . According to an embodiment, all or part of operations executed in the electronic device 101 may be executed in one or more external electronic devices among the external electronic devices 102 , 104 , or 108 . For example, when the electronic device 101 needs to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device 101 instead of executing the function or service by itself. Alternatively or additionally, one or more external electronic devices may be requested to perform the function or at least part of the service. One or more external electronic devices receiving the request may execute at least a part of the requested function or service or an additional function or service related to the request, and deliver the execution result to the electronic device 101 . The electronic device 101 may provide the result as at least part of a response to the request as it is or additionally processed. To this end, for example, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used. The electronic device 101 may provide an ultra-low latency service using, for example, distributed computing or mobile edge computing. In another embodiment, the external electronic device 104 may include an internet of things (IoT) device. Server 108 may be an intelligent server using machine learning and/or neural networks. According to one embodiment, the external electronic device 104 or server 108 may be included in the second network 199 . The electronic device 101 may be applied to intelligent services (eg, smart home, smart city, smart car, or health care) based on 5G communication technology and IoT-related technology.

2 is an exemplary diagram illustrating an under display camera (UDC) disposed under a display module according to various embodiments of the present disclosure.

Referring to FIG. 2 , the electronic device 200 includes a first surface (or front surface) 210A, a second surface (or rear surface) 210B, and a gap between the first surface 210A and the second surface 210B. It may include a housing 210 including a side surface 210C surrounding the space. In the electronic device 200 , a display module 160 may be disposed corresponding to the first surface 210A, and content may be displayed through the display module 160 .

According to one embodiment, the display module 160 is, for example, a liquid crystal display (LCD), a light emitting diode (LED) display, an organic light emitting diode (OLED) display, microelectromechanical systems (MEMS) displays, and/or electronic paper. The electronic device 200 may display at least one piece of content (eg, text, image, video, icon, and/or symbol) through the display module 160 . The display module 160 may include a touch screen, and may receive, for example, an electronic pen input, a touch input using a part of the user's body, a gesture input, a proximity input, and/or a hovering input. . The display module 160 may include a glass cover (window panel) visually exposed to the outside and/or various layers.

According to an embodiment, the display module 160 is the entire (bezel- less) or most of it. The display module 160 may be implemented in a form extending to the side 210C (eg, top/bottom/left/right side) of the electronic device 200 .

Referring to FIG. 2 , in the electronic device 200, at least one camera 201 (eg, the camera module 180 of FIG. 1 or an under display camera (UDC)) is disposed under a display module 160. can include Referring to FIG. 2 , one camera 201 is illustrated as being disposed under the display module 160, but the position and number of cameras disposed therein are not limited. The housing 210 of the electronic device 200 may secure an internal space for disposing at least one camera 201, and may be designed in such a way that the at least one camera 201 is disposed in the internal space. .

Referring to FIG. 2 , at least one camera 201 may be disposed to be at least partially visually exposed to the outside through the display module 160 . For example, the at least one camera 201 may be disposed in a form in contact with an external environment through a transparent region 201 ′ at least partially implemented on the front surface 210A of the display module 160 . According to an embodiment, an area where the display module 160 and at least one camera 201 face each other (eg, a transmissive area 201', a light emitting area through the display module 160) is an area for displaying content. As a part, it may be formed to have a certain transmittance. For example, the transmission region may be formed to have a transmittance in a range of about 5% to about 20%. The transmission area may include an area overlapping an effective aperture (eg, an angle of view, a camera lens arrangement area) of the camera module through which light formed through the image sensor and for generating an image passes. For example, the transmissive area 201' of the display module 160 may include an area with a lower pixel density than the surrounding area. For example, the transmission area may replace an opening through which at least one camera 201 is visually exposed to the outside.

According to an embodiment, the electronic device 200 may emit at least one light source based on at least one pixel included in the display module 160 . For example, the at least one light source may include a red light source, a green light source, and/or a blue light source. According to an embodiment, the electronic device 200 may perform a light emitting function based on at least one pixel included in the display module 160, and while at least partially transmitting through the transparent region 201', the external At least one light source may illuminate the environment. At least one pixel may function as a light emitting unit.

According to an embodiment, the electronic device 200 may receive light transmitted from the external environment based on the camera 201 disposed below the display module 160 . For example, the camera 201 may at least partially acquire reflected light reflected from an external subject.

According to an embodiment, the electronic device 200 may emit at least one light source through the display module 160, and reflect light reflected by an external subject based on the at least one light source into the camera 201. ) can be obtained using For example, at least one pixel included in the display module 160 may operate as a light emitting unit, and the camera 201 disposed below the display module 160 may operate as a light receiving unit.

According to an embodiment, a partial area of the display module 160 may be set as a transmissive area 201' corresponding to the position of the lens of the camera 201. For example, the transmissive area 201' may be designed to have higher transmittance than other areas of the display module 160 except for the transmissive area. According to an embodiment, since the transmission region 201 ′ has high transmittance, the electronic device 200 can more accurately receive reflected light through the camera 201 . According to an embodiment, the electronic device 200 may utilize the display module 160 as a light emitting unit and the camera 201 as a light receiving unit, and perform proximity sensing based on the display module 160 and the camera 201. function can be performed. According to an embodiment, the electronic device 200 replaces a separate proximity sensor with a display module 160 that emits a light source by itself and a camera 201 disposed below the display module 160 (eg: UDC) can be used.

3 is a block diagram of an electronic device according to various embodiments of the present disclosure.

The electronic device of FIG. 3 (eg, the electronic device 101 of FIG. 1 ) may be at least partially similar to the electronic device 200 of FIG. 2 or may further include other embodiments of the electronic device 200 .

According to an embodiment, the electronic device 101 may utilize a display module (eg, the display module 160 of FIG. 1 ) as a light emitting unit and a camera module (eg, the camera module 180 of FIG. 1 ) as a light receiving unit. can be utilized When the light source emitted from the display module 160 is reflected by an external object, the electronic device 101 may receive the reflected light through the camera module 180 . The electronic device 101 may perform a proximity sensing function based on the display module 180 (eg, a light emitter) and the camera module 180 (eg, a light receiver). The camera module 180 may be disposed below (eg, the back surface) of the display module 160, and an area of the display module 160 corresponding to the position where the camera module 180 is disposed (eg, transmission in FIG. 2 Region 201') may be implemented to have high transmittance. For example, the transmissive area 201' may be designed to have a higher transmittance than the rest of the screen display area of the display module 160 except for the transmissive area 201'.

Referring to FIG. 3 , the electronic device 101 includes a processor (eg, the processor 120 of FIG. 1 ), a memory (eg, the memory 130 of FIG. 1 ), a display module 160 , a sensor module (eg, the FIG. 1) and/or an under display camera (UDC) 310 (eg, the camera module 180 of FIG. 1). The electronic device 101 may use the display module 160 and the UDC 310 instead of the proximity sensor. For example, at least one pixel included in the display module 160 may be used as a light emitting unit, and the UDC 310 may be used as a light receiving unit. According to an embodiment, the electronic device 101 may store the light source reference value 320 (eg, calibration information and/or calibration data) in the memory 130 in advance, and the light source stored in the memory 130 Based on the reference value, a noise component of the reflected light obtained from the outside may be removed.

The processor 120 may execute a program (eg, the program 140 of FIG. 1 ) stored in the memory 130 to control at least one other component (eg, a hardware or software component) and obtain various data. Can perform processing or calculations. For example, the processor 120 generates first light emitted through a partial area of the display module 160 (eg, the transmissive area 201' in FIG. 2 ) and second light received through the camera module 180 . Based on (eg, reflected light), a proximity sensing function may be performed, and the proximity of a human body (eg, an object) to the electronic device 101 may be determined.

The light source reference value 320 stored in the memory 130 is first data for at least one light source (eg, visible light) emitted from at least one pixel included in the display module 160 and the at least one light source Second data about reflected light reflected by an external object (eg, a human body) may be included. For example, the light source reference value 320 may include calibration information by a calibration operation and may be stored in advance. The light source reference value 320 may include light source data by which, when light emitted through at least one pixel is reflected by an object, the reflected light is received by the UDC 310 without a surrounding noise component. According to an embodiment, the light source reference value 320 may include data on a light source not including a noise component and a reflective light source. According to an embodiment, when acquiring a light source, the processor 120 may determine whether or not a noise component is included in the acquired light source based on the light source reference value 320 stored in the memory 130, and The noise component may be removed from the light source.

The display module 160 may be implemented in a form in which at least one pixel is arranged based on a set interval and position. The display module 160 may operate with at least one pixel in an ON state or an OFF state. For example, the display module 160 may emit at least one light source based on the at least one pixel when the at least one pixel is in an ON state. For example, the at least one light source may include a red light source, a green light source, and/or a blue light source. The processor 120 may repeatedly emit light from at least one light source according to a predetermined period. The processor 120 may set a value in the range of about 0 to 255 in response to at least one light source. For example, when a red light source is set to a value of 255 and a green light source and a blue light source are set to a value of 0, the processor 120 may emit red light. The processor 120 may implement various colors by combining at least one light source. For example, when a red light source, a green light source, and/or a blue light source are all set to a value of 255, the processor 120 may implement and emit white light. According to an embodiment, a portion of the screen display area of the display module 160 (eg, the transmissive area 201' in FIG. 2 ) may have a high transmittance. For example, at least one UDC 310 may be disposed below (eg, a rear surface) of the display module 160, and the at least one UDC 310 generates light (eg, reflected light) from an external environment. can receive light. In the display module 160, a transmissive area 201' may be set corresponding to the position where the at least one UDC 310 is disposed, and the transmissive area 201' may be designed to have high transmittance. there is. According to an embodiment, since the electronic device 101 emits light through at least one pixel included in the display module 160, the display module 160 can be used as a light emitting unit.

The display module 160 may include a touch screen panel and may detect a user's touch input. For example, when a touch input is sensed through the display module 160, the processor 120 may check coordinate information corresponding to the touch input to the display module 160. The processor 120 may determine whether an object (eg, a human body) is close to the display module 160 based on coordinate information according to a user's touch input.

The sensor module 176 may be used to check the state of the electronic device 101 (eg, use state, standby state, sleep state), an illumination sensor for checking the brightness of the surrounding environment, and the electronic device 101 It may include at least one of a grip sensor for checking grip and/or a gyro sensor for checking the position of the electronic device 101 . For example, the electronic device 101 may use an illuminance sensor to check the brightness of the surrounding environment and determine whether the electronic device 101 is left in a bag. The electronic device 101 can determine whether the user grips the electronic device 101 using the grip sensor, and can predict whether or not the electronic device 101 will be used based on the grip type. The electronic device 101 may check the position and arrangement position of the electronic device 101 using the gyro sensor. According to an embodiment, the electronic device 101 may use the sensor module 176 to determine whether the electronic device 101 operates in a specific situation.

The UDC 310 (eg, the camera module 180 of FIG. 1 ) may be disposed below (eg, the rear surface) of the display module 160 and uses a light source (eg, a reflected light source, a reflected light) generated from an external environment. You can receive (acquire) light. The UDC 310 may operate in one of an ON state and/or an OFF state in a situation in which it is used as a light receiving unit. For example, when at least one light source is emitted from the display module 160, the UDC 310 may operate in an ON state. According to an embodiment, the processor 120 may obtain a reflection light source in which at least one light source is reflected by an object using the UDC 310 in an ON state. According to an embodiment, the display module 160 may set a portion of the display area as a transmissive area having high transmittance (eg, the transmissive area 201' of FIG. 2 ). The UDC 310 may be disposed below the transmissive area 201' of the display module 160. According to one embodiment, at least one UDC 310 may be disposed at least partially under the display module 160 .

According to an embodiment, the electronic device 101 may utilize at least one pixel included in the display module 160 as a light emitting unit and may utilize the UDC 310 as a light receiving unit. The electronic device 101 may receive the reflected light source through the UDC 310 when the light source emitted from the display module 160 is reflected by an external object. The electronic device 101 may perform a proximity sensing function based on the display module 180 (eg, a light emitter) and the UDC 310 (eg, a light receiver). The electronic device 101 may store the light source reference value 320 previously acquired through the calibration operation in the memory 130, and may remove noise components of the reflected light source based on the light source reference value 320.

According to an embodiment, when the electronic device 101 receives light of the reflective light source, based on the light source reference value 320 stored in the memory 130, the electronic device 101 may remove a noise component of the reflective light source, and the noise component is removed. By using the reflective light source, the proximity sensing function can be more accurately performed. Accuracy of proximity sensing may be improved.

According to various embodiments, the electronic device 101 includes a display module 160 including at least one pixel, a camera module 180 disposed on a rear surface of the display module 160, and a display module corresponding to at least one light source. It may include a memory 130 that stores a light source reference value, and a processor 120 operatively connected to the display module 160 , the camera module 180 , and the memory 130 . The processor 120 emits at least one light source based on the at least one pixel through the display module 160, and the at least one light source reflects a light source reflected by an object in the camera module ( 180), checks a reflection value corresponding to the at least one light source based on the obtained reflected light source, and based on the light source reference value stored in the memory 130 and the checked reflection value, Noise included in the reflective light source may be removed, and proximity to the object may be determined based on the reflective light source from which the noise is removed.

According to an embodiment, the camera module 180 is disposed on the rear surface of the first area (eg, the transmissive area 201' of FIG. 2) of the display module 160, and the first area 201' is characterized in that it has higher transmittance than other areas of the display module 160 except for the first area 201'.

According to an embodiment, the processor 120 emits at least one light source while transmitting through the first region 201' based on at least one pixel distributed in the first region 201'. can do.

According to an embodiment, the processor 120 transmits the reflected light source through the first area 201' through the camera module 180 disposed on the rear surface of the first area 201'. can be lighted.

According to an exemplary embodiment, the electronic device 101 further includes a reflector disposed on a surface of the display module 160 while entirely covering the first region 201', and the processor 120 operates on the reflector. While covering the first region 201', at least one light source emits light through at least one pixel distributed in the first region 201', and the at least one light source is reflected by the reflector. The reflected light source is received through the camera module 180 disposed on the rear surface of the first area 201', and a reflection value corresponding to the at least one light source is determined as a light source reference value based on the received reflected light source. , and the light source reference value may be stored in the memory 130 .

According to an embodiment, the light source reference value may include at least one of a reference reflection value not including noise according to an external environment and a frequency value and an amplitude value corresponding to the at least one light source.

According to one embodiment, the at least one light source may include at least one of a red light source, a green light source, and a blue light source.

According to an embodiment, the processor 120 may implement white light by combining the at least one light source and emit the implemented white light.

According to an embodiment, the processor 120 may emit light from at least one light source among a plurality of light sources according to a set order.

According to an embodiment, the electronic device 101 further includes a sensor module 176 including a gyro sensor for detecting a posture of the electronic device 101, and the processor 120 uses the gyro sensor. Thus, the posture of the electronic device 101 is checked, and when the checked posture matches the set posture, at least one light source based on the at least one pixel may be emitted through the display module 160. there is.

According to an embodiment, the electronic device 101 further includes a communication module 190 for communicating with an external electronic device, and the processor 120 communicates with the external electronic device through the communication module 190. In response to a call decision, at least one light source is emitted based on the at least one pixel through the display module 160, and when the at least one light source emitted is reflected by an object, the reflected light source is received. To do so, the camera module 180 may be at least partially activated.

According to an embodiment, the processor 120 stops the light emission operation of the at least one light source based on the at least one pixel when the distance to the object is equal to or less than a set threshold, and the activated camera module can be disabled.

According to an embodiment, the processor 120 checks the received light amount corresponding to the acquired reflected light source, determines whether the checked light received amount is less than the reference light received amount stored in the memory 130, and determines whether the at least one Based on the pixels of , check the ratio of the pixels covered by the object, check whether the ratio of the identified pixels exceeds the reference ratio stored in the memory 130, and determine whether the light reception amount is less than the reference light reception amount or , or if the ratio of the pixels exceeds the reference ratio, it may be determined that the object is in close proximity.

4 is a flowchart illustrating a proximity sensing method using a display module and a camera module according to various embodiments of the present disclosure.

The electronic device of FIG. 4 (eg, the electronic device 101 of FIG. 1 ) may be at least partially similar to the electronic device 200 of FIG. 2 or may further include other embodiments of the electronic device 200 . The electronic device 101 of FIG. 4 may include at least one component shown in FIG. 3 .

In operation 401, the processor (eg, the processor 120 of FIG. 1 ) of the electronic device 101 transmits a first area (eg, the transparent area 201 of FIG. 2 ) of a display module (eg, the display module 160 of FIG. 1 ). ')), at least one light source (eg, a red light source, a green light source, and/or a blue light source) may emit light. For example, at least one light source may include visible light. The processor 120 may set a value in the range of about 0 to 255 in response to at least one light source, and implement various colors by combining at least one light source. For example, when the red light source is set to a value of 255, the processor 120 may emit the red light source. When all of the red light source, the green light source, and/or the blue light source are set to a value of 255, the processor 120 may implement white light and emit the white light. The electronic device 101 may set a partial area of the display module 160 as the first area 201', and the first area 201' may have a relatively higher transmittance than its surroundings. At least one pixel from which at least one light source emits light may be at least partially distributed in the first region 201'. At least one light source emitted through at least one pixel may pass through the first region 201' and be transferred to an external environment.

In operation 403, the processor 120 processes a camera module (eg, the camera module 180 of FIG. 1, the camera 201 of FIG. 2, or an under display camera (UDC)) disposed on the rear surface of the first area 201'. , at least one light source may acquire (receive) reflected light (eg, a reflected light source) reflected by an object. According to an embodiment, in the electronic device 101, at least one camera module 180 may be disposed under (eg, a rear surface of) the display module 160 . At least one camera module 180 may include an under display camera (UDC). The camera module 180 may at least partially receive light (light) generated from an external environment. The camera module 180 may be used as a light receiving unit. For example, the camera module 180 may receive light transmitted through the first region 201'. According to an embodiment, at least one light source emitted from the display module 160 may be reflected by an object (eg, a human body or a subject), and the reflected light source may be at least partially received through the camera module 180. can The electronic device 101 may measure a distance to an object based on a light source emitted from the display module 160 and a light source received through the camera module 180 . Referring to FIG. 10, a flowchart of measuring a distance to an object is shown. In the detailed description of FIG. 10, an operation of measuring a distance to the object will be described. According to an embodiment, a light source emitted through the first area 201' may be reflected by an object, and a light source (eg, a reflective light source) reflected by the object may be reflected by the camera through the first area 201'. (201).

In operation 405, the processor 120 may check a reflection value corresponding to at least one light source based on the obtained reflected light source. For example, the reflection value may refer to a digital value (eg, an ADC value) when an analog value of light is converted into a digital value based on a reflective light source. For example, the reflective light source may include at least one light source (eg, a red light source, a green light source, and/or a blue light source). The reflection light source may include a light source combining at least one of a red light source, a green light source, and/or a blue light source. The processor 120 may check each reflection value corresponding to each light source (eg, a red light source, a green light source, and/or a blue light source) based on the obtained reflected light source. For example, a reflection value corresponding to a red light source, a reflection value corresponding to a green light source, and/or a reflection value corresponding to a blue light source may be checked. For example, each reflection value may include a frequency and an amplitude corresponding to a color.

In operation 407, the processor 120 may remove noise included in at least one light source based on a reference value (eg, calibration data) stored in a memory (eg, the memory 130 of FIG. 1) and the checked reflection value. . According to an embodiment, since at least one light source (eg, visible light) is a light source generated by the display module 160, a noise component may be included at least in part. Compared to an infrared (IR) light source, a reflection light source for the at least one light source (eg, a visible light source) may be relatively vulnerable to noise components. In operation 407, the processor 120 may at least partially remove noise components included in the reflection light source. For example, the electronic device 101 may store light source reference values (eg, calibration data) corresponding to each light source (eg, a red light source, a green light source, and/or a blue light source) in advance. The light source reference value may be obtained through a calibration operation and may include a reflection value of a reflective light source that does not include a noise component based on an external environment. The calibration operation will be described in detail with respect to FIG. 5 . According to an embodiment, the processor 120 may compare a reference value of a light source that does not include a noise component based on the external environment with a reflection value of a reflective light source that at least partially includes a noise component based on the external environment. A noise component included in the light source may be at least partially removed.

In operation 409, the processor 120 may measure the distance to the object based on the noise-removed reflection light source. According to an embodiment, the processor 120 sets a threshold value (eg, a first threshold value corresponding to a received light amount value and a second threshold value corresponding to a ratio of occluded pixels) for determining proximity to an object in advance. It can be set and stored in the memory 130 . For example, the processor 120 performs a calibration operation (eg, the calibration operation of FIGS. 5 and 6 ) to obtain a first threshold value (eg, the amount of light received in a state where the first region 201′ is covered by the reflector). value) may be determined, and the determined first threshold may be stored in a memory (eg, the memory 130 of FIG. 1 ). The processor 120 may calculate a received light amount value based on the reflective light source from which the noise is removed, and determine whether the object is approaching by comparing it with a first threshold value stored in the memory 130 . For another example, the processor 120 may set the ratio of the occluded pixels to the second threshold based on the pixels disposed corresponding to the first area 201'. For another example, the processor 120 may determine that the object is approaching when a ratio of occluded pixels exceeds a second threshold so as not to be exposed to the external environment. According to an embodiment, the processor 120 may determine proximity to the object or measure a distance away from the object based on the first threshold and the second threshold.

According to an embodiment, when performing a proximity sensing function, the electronic device 101 may implement white light based on at least one pixel included in the first region 201', and the white light can emit light. For example, the processor 120 may implement a white light source by combining at least one light source. When the white light source emitted into the external environment is reflected by an object, the electronic device 101 may receive the reflected light source corresponding to the white light source through the camera module 180 . The processor 120 may determine a distance (eg, proximity) to an object based on the reflected light source. For example, the processor 120 may remove a noise component included in the reflective light source based on the light source reference value 320 stored in the memory 130, and the noise component may be removed from the object based on the reflective light source. distance can be measured more accurately.

According to another embodiment, the electronic device 101 checks the distance to the object based on the white light source, and then sequentially emits other light sources (eg, a red light source, a green light source, and/or a blue light source), and additionally You can check the distance to the object. The electronic device 101 may perform a proximity sensing function based on at least one light source (eg, visible light). The electronic device 101 may use at least one or more light sources to more accurately measure a distance to an object.

5 is a flowchart illustrating a method of obtaining a reference value for removing noise according to various embodiments of the present disclosure.

The electronic device of FIG. 5 (eg, the electronic device 101 of FIG. 1 ) may be at least partially similar to the electronic device 200 of FIG. 2 or may further include other embodiments of the electronic device 200 . The electronic device 101 of FIG. 5 may include at least one component shown in FIG. 3 .

According to an embodiment, the electronic device 101 may use at least one light source (eg, visible light) to determine whether or not an object is approached (eg, a proximity sensing function is performed). The electronic device 101 can improve the accuracy of determining proximity to an object by removing noise components included in visible light. For example, noise components generated from the external environment may be introduced into visible light generated from at least one light source (eg, the display module 160 of FIG. 1 ). For example, in receiving the reflected light source reflected by the object, the electronic device 101 determines the arrangement state of the camera module (eg, the camera module 180 of FIG. 1 ) and the setting state of the display module 160 (eg : brightness level), it may be difficult to accurately analyze the reflected light source. According to an embodiment, the electronic device 101 may perform the calibration operation of FIG. 5 in advance, and analyze the reflected light source based on a limited situation (eg, a situation in which noise components are not introduced from the external environment). can The electronic device 101 may perform a calibration operation to check the frequency and amplitude of the reflective light source, and store the checked frequency and amplitude of the reflective light source as reference values (eg, light source reference values) in a memory (eg, FIG. 1 ). It can be stored in the memory 130 of. According to an embodiment, the electronic device 101 may remove a noise component of the reflected light source received from the external environment based on the reference value stored in the memory 130 . According to an embodiment, the electronic device 101 may determine proximity to an object based on the reflective light source from which noise components are removed, and accuracy of determining proximity to the object may be improved. According to another embodiment, the electronic device 101 may continuously accumulate data on the reflective light source from which noise components are removed in the memory 130 and may collect data according to a specific situation. The electronic device 101 may improve the accuracy of a proximity sensing function based on the reflection light source by collecting or updating data on the reflection light source.

5 illustrates a sequence of calibration operations previously performed by the electronic device 101 . FIG. 6 illustrates a situation in which a reflector entirely covers a transmissive area through which at least one light source is transmitted (eg, the transmissive area 201′ of FIG. 2 ) during a calibration operation. For example, the calibration operation may include an operation of analyzing a reflected light source in a state in which no noise component is introduced from the external environment. The electronic device 101 performs a calibration operation to acquire at least one reference value corresponding to at least one light source (eg, a red light source, a green light source, and/or a blue light source). can For example, the electronic device 101 may provide a reference value of a red light source corresponding to a red (R) light source, a green light source reference value corresponding to a green (G) light source, and/or a blue light source corresponding to a blue (B) light source. A reference value can be obtained.

In operation 501, the processor of the electronic device 101 (eg, the processor 120 of FIG. 1) is in a state in which a reflector is disposed in the first region (eg, the transmissive region 201′ of FIG. 2) of the display module 160. , at least one light source (eg, a red light source, a green light source, and/or a blue light source) through at least one pixel disposed corresponding to the first region 201'. can glow The display module 160 includes at least one pixel and can emit visible light itself through the at least one pixel. For example, visible light may be implemented by combining at least one light source based on at least one light source. According to an embodiment, the calibration operation may be an operation for obtaining a light source reference value (eg, the light source reference value 320 of FIG. 3 and calibration data) for at least one light source. According to an embodiment, the electronic device 101 may receive the reflected light source reflected by the object, and remove a noise component included in the reflected light source based on the light source reference value 320 stored in the memory 130. can For example, a reflective light source reflected by an object may be in a state in which a noise component generated from an external environment is included.

In operation 503, the processor 120 uses a camera (eg, the camera module 180 of FIG. 1 or the UDC 310 of FIG. 3) disposed on the rear surface of the first area 201' to generate at least one light source. A reflective light source reflected by the reflector may be obtained. During the calibration operation, the electronic device 101 may be in a state in which the first region 201' is completely covered by the reflector. For example, when at least one light source is emitted from at least one pixel of the display module 160, the at least one light source may be reflected by a reflector, and the reflected light source (eg: reflection light source) may be received. For example, the reflection light source may include a light source that does not include a noise component generated based on the external environment. According to an embodiment, the electronic device 101 may perform a calibration operation to remove a noise component generated from the external environment and included in the reflection light source. During the calibration operation, the electronic device 101 may obtain a light source reference value for the reflected light source reflected by the reflector and store the light source reference value in the memory 130 . According to an embodiment, when receiving a reflective light source reflected by an external object, the electronic device 101 may remove a noise component included in the reflective light source based on a light source reference value stored in the memory 130. there is.

In operation 505, the processor 120 may store at least one light source and a frequency and amplitude corresponding to each light source in the memory 130 as reference values. According to an embodiment, the processor 120 obtains light source reference values corresponding to at least one light source (eg, a red (R) light source, a green (G) light source, and/or a blue (B) light source), respectively. and the light source reference value may be stored in the memory 130 . For example, the processor 120 individually stores the frequency and amplitude corresponding to a red light source, the frequency and amplitude corresponding to a green light source, and the frequency and amplitude corresponding to a blue light source based on the reflected light source reflected by the reflector. (130). According to an embodiment, the calibration operation may be performed in advance in the process of designing the electronic device 101, and the electronic device 101 may be manufactured with light source reference values already stored in the memory 130.

According to an embodiment, the electronic device 101 may at least partially remove a noise component included in a reflective light source reflected by an object based on a light source reference value stored in the memory 130 by a calibration operation. The electronic device 101 may perform a proximity sensing function for an object based on a reflective light source from which a noise component based on an external environment is removed. According to an embodiment, since a noise component is removed from the reflection light source, accuracy of the proximity sensing function may be improved.

6 is an exemplary diagram illustrating a situation in which a first area of a display module is covered by a reflector according to various embodiments of the present disclosure.

Referring to FIG. 6 , in the electronic device 200 (eg, the electronic device 101 of FIG. 1 ), the first region (eg, the transmissive region 201′ of FIG. 2 ) of the display module 160 is a reflector 610 ), the calibration operation can be performed.

According to an embodiment, the electronic device 200 may emit at least one light source (eg, visible light) through at least one pixel disposed in the first region 201' of the display module 160, and , the at least one pixel may be used as a light emitting unit. The electronic device 200 corresponds to the first area 201' of the display module 160 and includes a camera 201 (eg, the camera of FIG. 1 ) disposed under (eg, the rear surface) the display module 160. Through the module 180 and the UDC 310 of FIG. 3 , at least one light source (eg, a reflective light source) may be received, and the camera 201 may be used as a light receiving unit. A light source emitted from at least one pixel may be reflected by the reflector 610 , and the reflected light source (eg, a reflective light source) may be received through the camera 201 . According to an embodiment, the electronic device 200 may emit at least one light source (eg, a red (R) light source, a green (G) light source, and/or a blue (B) light source) according to a set order. and a reflective light source corresponding to each of the at least one light source may be obtained. For example, a reflection light source reflected by an object may include a noise component based on an external environment.

According to an embodiment, the electronic device 200 performs a calibration operation to obtain a reflective light source corresponding to each light source (eg, a reflective light source reflected by the reflector 610 and a noise component based on the external environment). reflective light source) may be obtained, and a light source reference value for a reflective light source corresponding to each light source may be stored in the memory 130 . For example, the electronic device 200 may convert an analog value of the light source into a digital value (eg, an ADC value) based on the reflected light source reflected by the reflector 610, and convert the converted digital value into a digital value. It can be saved as the light source reference value. The digital values may include values for frequencies and amplitudes corresponding to at least one light source. The electronic device 200 may store frequencies and amplitudes corresponding to each light source in a memory (eg, the memory 130 of FIG. 1 ) as light source reference values.

According to an embodiment, when the electronic device 200 receives a reflective light source through the camera module 180 in an actual use environment, the electronic device 200 stores the light source reference value stored in the memory 130 and the received reflection. Light sources may be compared or analyzed, and a noise component of the light-received reflection light source may be removed. For example, a reflected light source received from an external environment may include a noise component based on the external environment. The electronic device 200 may at least partially remove noise components included in the reflection light source based on the light source reference value. According to an embodiment, the electronic device 200 may check a distance to an object based on a reflective light source from which noise components are removed, and perform a proximity sensing function more accurately. According to an embodiment, the electronic device 200 uses at least one pixel as a light emitting unit and utilizes the camera module 180 (UDC) as a light receiving unit, without a separate proximity sensor, to perform a proximity sensing function based on a reflected light source. can be done

7 is a flowchart illustrating a situation in which a proximity sensing function is performed when a call is received according to various embodiments of the present disclosure.

The electronic device of FIG. 7 (eg, the electronic device 101 of FIG. 1 ) may be at least partially similar to the electronic device 200 of FIG. 2 or may further include other embodiments of the electronic device 200 . The electronic device 101 of FIG. 7 may include at least one component shown in FIG. 3 .

According to an embodiment, a processor (eg, the processor 120 of FIG. 1 ) of the electronic device 101 communicates with an external electronic device (eg, the processor 120 of FIG. 1 ) via a communication module (eg, the communication module 190 of FIG. 1 ). It is possible to check call signals from the electronic devices 102 and 104 of the other party and the other party's electronic device, and through a display module (eg, the display module 160 of FIG. 1), the phone number and/or An ID (eg, name) of a registered counterpart in correspondence with the external electronic device may be displayed. For example, upon receiving a call signal, the processor 120 may switch the display module 160 from an OFF state to an ON state, and indicates an external electronic device (eg, the other party's ID) that transmitted the call signal. A user interface (UI) including a notification message may be displayed.

In operation 701, the processor 120 may determine a call with an external electronic device in response to a user input while the user interface including the notification message is displayed. For example, the user may check the ID (eg, the phone number of the external electronic device) of the other party who has transmitted the call signal based on the user interface, and determine whether or not to make a call with the other party.

In operation 703, the processor 120 may determine whether the electronic device 101 is gripped using a sensor module (eg, the sensor module 176 of FIG. 1). For example, the sensor module 176 may include a touch sensor for determining whether or not the user grips and a gyro sensor for detecting the posture and position of the electronic device 101 . The processor 120 may determine whether the electronic device 101 is gripped based on the sensing information obtained through the sensor module 176 .

In operation 705, the processor 120 initiates a camera (eg, the camera module 180 of FIG. 1, FIG. UDC (310) of can be activated. For example, the processor 120 may at least partially activate functions required when the camera module 180 is used as a light receiving unit. Among the functions of the camera module 180, the processor 120 may at least partially activate some functions required in a situation in which light is received from the outside.

In operation 707, the processor 120 selects at least one light source (eg, red (R) light source, green (G) light source, and/or blue (B) light source)). For example, the processor 120 may emit at least one light source to an external environment based on at least one pixel distributed in the first region 201'. According to an embodiment, the electronic device 101 may utilize at least one pixel disposed in the first region 201' as a light emitting unit.

In operation 709, the processor 120 may obtain a reflected light source in which at least one light source is reflected by an object (eg, a human body). For example, the user moves the electronic device 101 so that the user's ears are positioned where the audio module (eg, the audio module 170 of FIG. 1 and the speaker) of the electronic device 101 is placed for a call with the other party. can make it In this case, at least one light source may be at least partially reflected on the user's body (eg, an object), and the reflected light source may be received through the camera module 180 . The processor 120 may use the camera module 180 as a light receiving unit to at least partially obtain a reflective light source.

In operation 711, the processor 120 may obtain a reflection value corresponding to at least one light source based on the obtained reflected light source. For example, the processor 120 may obtain a reflection value corresponding to each light source (eg, a red (R) light source, a green (G) light source, and/or a blue (B) light source). The reflective light source is a reflective light source for visible light and may include a noise component generated based on an external environment.

In operation 713, the processor 120 may measure the distance to the object based on the light source reference value stored in the memory 130 and the obtained reflection value. For example, the light source reference value includes a value (e.g., calibration data) measured based on the calibration operation described in FIGS. A light source of , and a reference reflection value corresponding to each may be included. The light source reference value may include calibration data obtained based on a calibration operation in the electronic device 101 . The light source reference value may include a reflection value corresponding to each light source based on a reflective light source that does not include a noise component generated based on an external environment. According to an embodiment, the processor 120 may include a light source reference value (eg, a reflection value without a noise component generated based on the external environment) and a reflection value obtained based on a specular light source (eg, a reflection value generated based on the external environment). reflection values including noise components) can be compared, and noise components can be extracted. The processor 120 may remove the extracted noise component from the reflection value obtained based on the reflection light source, and measure the distance to the object based on the reflection value from which the noise component is removed.

In operation 715, the processor 120 may deactivate the camera 201 when the measured distance is less than or equal to a set threshold, and light is emitted through at least one pixel disposed in the first area 201' of the display module 160. action can be stopped. For example, that the measured distance is less than or equal to a set threshold may mean that the user places the electronic device 101 adjacent to the user's ear and mouth for a call with the other party. When the electronic device 101 is disposed adjacent to the user's ear, the electronic device 101 may switch the display module 160 to an OFF state, stop a light emitting operation of at least one pixel, and perform a camera operation. A light receiving operation by the module 180 may be stopped. According to an embodiment, when the electronic device 101 is disposed adjacent to the user's ear (by performing a proximity sensing function to determine that an object (eg, human body) is in proximity), the electronic device 101 is Components related to the sensing function (eg, at least one pixel operating as a light emitting unit and the camera module 180 operating as a light receiving unit) may be stopped or deactivated.

According to an embodiment, the electronic device 101 may perform a proximity sensing function (eg, operating at least one pixel as a light emitting unit and operating the camera module 180 as a light receiving unit) in response to receiving a call, and may perform an object When it is confirmed that (eg, a human body) is disposed adjacently, power consumption may be reduced by stopping the operation of components related to the proximity sensing function.

8 is a time table illustrating a situation in which each component performs a proximity sensing function when a call is received according to various embodiments of the present disclosure.

The electronic device of FIG. 8 (eg, the electronic device 101 of FIG. 1 ) may be at least partially similar to the electronic device 200 of FIG. 2 or may further include other embodiments of the electronic device 200 . Referring to FIG. 8 , an operation sequence of the processor 120, the display module 160, and/or the camera module 180 corresponding to the components of the electronic device 101 is illustrated.

Referring to FIG. 8 , the operation in the flowchart of FIG. 7 is specifically shown as an operation for each component.

In operation 801, the processor (eg, the processor 120 of FIG. 1 ) of the electronic device 101 communicates with the external electronic device (eg, the electronic device of FIG. 1 ) via a communication module (eg, the communication module 190 of FIG. 1 ). (102, 104), a call signal (eg, call signal) transmitted from the other party's electronic device) can be checked.

In operation 701 (eg, operation 701 of FIG. 7 ), the processor 120 may determine a call connection with the other party. For example, in response to confirmation of the call signal to the external electronic device, the processor 120 sends a notification message indicating the external electronic device (eg, the other party's ID) that transmitted the call signal through the display module 160. Can display embedded user interfaces. The user may check the other party (eg, an external electronic device) that has transmitted the call signal based on the user interface, and in operation 701 may determine a call with the other party.

In operation 703 (eg, operation 703 of FIG. 7 ), the processor 120 may determine whether the electronic device 101 is gripped by using a sensor module (eg, the sensor module 176 of FIG. 1 ). For example, the sensor module 176 may include a touch sensor for determining whether or not the user grips and a gyro sensor for detecting the posture and position of the electronic device 101 . When the user's grip on the electronic device 101 is confirmed, the processor 120 may perform operations 803 and 805 . According to another embodiment, the electronic device 101 may perform operations 803 and 805 when a set time elapses after receiving a call in operation 701 .

In operation 803, the processor 120 may request the camera module 180 to activate the camera. For example, the camera may include a UDC (eg, UDC 310 of FIG. 3 ) disposed on the rear surface of the first area (eg, transmission area 201′ of FIG. 2 ) of the display module 160 . . Among the functions of the camera module 180, the processor 120 may transmit a request signal to the camera module 180 to at least partially activate some functions required to receive light from the outside.

In operation 805, the processor 120 may request the display module 180 to emit light. For example, the processor 120 may select at least one light source (eg, a white (W) light source, a red (R) light source, based on at least one pixel distributed in the first region 201' of the display module 180. A request signal may be transmitted to the display module 180 to emit light, green (G) light source, and/or blue (B) light source).

In operation 705 (eg, operation 705 of FIG. 7 ), the processor 120 may activate (ON) a camera disposed on the rear surface of the first region 201 ′ of the display module 180 . The processor 120 may at least partially activate some of the functions of the camera so that the camera can perform a light receiving function.

In operation 707 (eg, operation 707 of FIG. 7 ), the processor 120 may emit light from at least one light source based on at least one pixel. For example, at least one light source may transmit light to the external environment by passing through the first region 201'. At least one light source may be at least partially reflected by an external object (eg, a human body or a subject).

In operations 709 and 711 (eg, operations 709 and 711 of FIG. 7 ), the processor 120 may obtain a reflection light source reflected by an object and obtain a reflection value based on the obtained reflection light source. . The processor 120 may compare the obtained reflection value with a light source reference value (eg, the light source reference value 320 of FIG. 3 ) stored in a memory (eg, the memory 130 of FIG. 1 ), and a noise component included in the reflected light source. can be detected. The processor 120 may remove the detected noise component based on the reflective light source, and measure the distance to the object based on the reflective light source from which the noise component is removed.

In operation 713 (eg, operation 713 of FIG. 7 ), the processor 120 may measure the distance to the object. Since the noise component is removed from the reflected light source, the processor 120 can more accurately measure the distance. According to an embodiment, the electronic device 101 can perform a light emitting function based on at least one pixel included in the display module 160 and can perform a light receiving function based on the camera module 180. . The electronic device 101 may perform a proximity sensing function based on the display module 160 and the camera module 180 . The processor 120 may perform operations 807 and 809 when the distance to the measured object is less than or equal to a set threshold.

In operation 807, the processor 120 may request the camera module 180 to deactivate the camera. For example, when the distance to the measured object is less than or equal to a threshold value, it may mean that the user places the electronic device 101 adjacent to the ear and mouth for a call. The electronic device 101 may request the camera module 180 to deactivate the camera in order to stop the proximity sensing function.

In operation 809, the processor 120 may request the display module 160 to stop the light emitting function of at least one pixel. The electronic device 101 may request the display module 160 to deactivate the camera in order to stop the proximity sensing function.

In operation 715, the camera module 180 may deactivate (OFF) the camera in response to the request in operation 807. The processor 120 may at least partially deactivate the camera so that a function of receiving light through the camera is stopped. In operation 715, the display module 160 may stop the light emitting function of at least one pixel in response to the request in operation 809. The processor 120 may at least partially control the display module 160 so that a light emitting function through at least one pixel is stopped.

9 is an exemplary diagram illustrating a situation in which a certain percentage of pixels are covered based on a plurality of pixels included in a display module according to various embodiments of the present disclosure.

The electronic device of FIG. 9 (eg, the electronic device 101 of FIG. 1 ) may be at least partially similar to the electronic device 200 of FIG. 2 , or may further include other embodiments of the electronic device 200 . The electronic device 101 of FIG. 9 may include at least one component shown in FIG. 3 .

Referring to FIG. 9 , at least one pixel group 910 distributed in a first area (eg, the transmissive area 201′ of FIG. 2 ) of a display module (eg, the display module 160 of FIG. 1 ) is shown. do. The processor of the electronic device 101 (eg, the processor 120 of FIG. 1 ) may set the pixel group 910 based on at least one pixel included in the display module 160, and the pixel group 910 Based on this, it is possible to check an area 920 covered by an object (eg, a human body or a subject). For example, the processor 120 may obtain a reflection value corresponding to at least one pixel included in the pixel group 910, and based on the obtained reflection value, at least one pixel is covered by an object. You can check whether you lost or not.

Based on the total number of pixels distributed in the first region 201', the processor 120 may determine the number 920 of pixels having a reflection value less than or equal to a set threshold, and the determined number of pixels 920 is When the set ratio to the total number of pixels is exceeded, it may be determined that the object is close to the electronic device 101 . Based on the pixel group 910 , the processor 120 may distinguish an area 920 at least partially covered by an object and areas 911 , 912 , and 913 not covered by an object.

According to an embodiment, the electronic device 101 may perform a light emitting function using at least one pixel included in the display module 160, and a camera included in the camera module 180 (eg, FIG. 2 ). The light reception function may be performed using the camera 201 of FIG. 3 and the UDC 310 of FIG. 3 . For example, at least one pixel may be used as a light emitting unit and a camera may be used as a light receiving unit. The electronic device 101 includes at least one light source (eg, red (R)) based on at least one pixel distributed in the first area (eg, the transmissive area 201′ of FIG. A light source, a green (G) light source, and/or a blue (B) light source) may be emitted, and when the at least one light source is reflected by an external object, the reflected light source is received through the camera 201. can do. The electronic device 101 may be in a state in which the light source reference value 320 obtained by a calibration operation in advance is stored in the memory 130 . The electronic device 101 may compare the reflection value corresponding to the received reflection light source with the light source reference value 320 stored in the memory 130 to extract a noise component included in the reflection light source. The electronic device 101 may remove a noise component included in the reflective light source and perform a proximity sensing function based on the reflective light source from which the noise component is removed. According to an embodiment, since the electronic device 101 performs a proximity sensing function based on a reflective light source from which noise components are removed, accuracy of proximity sensing may be improved. According to an embodiment, the electronic device 101 may accurately perform a proximity sensing function based on at least one pixel and the camera module 180 (eg, the UDC 310).

According to an embodiment, when a call connection with the other party is determined, the electronic device 101 may perform a proximity sensing function (eg, at least one pixel functions as a light emitting unit and the camera module 180 functions as a light receiving unit). and whether the electronic device 101 is moved near the user's ear and mouth can be checked. When the electronic device 101 is located near the ear and mouth, the electronic device 101 may stop the proximity sensing function. For example, at least one pixel used as a light receiving unit may be turned off, and the function of the camera module 180 used as a light emitting unit may be turned off at least partially. According to an embodiment, the electronic device 101 may perform a proximity sensing function using visible light (eg, at least one light source emits light through at least one pixel), and removes a noise component for the reflected light source. By removing it, it is possible to more accurately measure the distance to the object.

According to an embodiment, the electronic device 101 performs a light receiving function based on the display module 160 and a light emitting function based on the camera module 180 without a separate proximity sensor, thereby performing a proximity sensing function. can be done The electronic device 101 may remove a noise component of the reflected light source and improve the accuracy of the proximity sensing function based on the light source reference value (eg, calibration data) obtained based on the calibration operation.

According to another embodiment, the electronic device 101 may check the position of the electronic device 101 using a gyro sensor included in a sensor module (eg, the sensor module 176 of FIG. 1 ). For example, when the user makes a call using a speaker while the electronic device 101 is placed on a table, the electronic device 101 uses a gyro sensor to detect that the electronic device 101 is placed on the table. You can check. Additionally, the electronic device 101 may use a proximity sensing function to confirm a user's gesture input (eg, perform a set gesture using a hand), and in response to the confirmation of the gesture input, perform a call function. there is.

According to another embodiment, the electronic device 101 may use an illuminance sensor included in the sensor module 176 to determine whether the electronic device 101 is located in a bag. For example, when the electronic device 101 is placed in a bag, the electronic device 101 may use an illuminance sensor to check a state in which the electronic device 101 is placed in the bag, and enter a sleep mode. can switch The electronic device 101 may check the state of the electronic device 101 using the gyro sensor.

10 is a flowchart illustrating a method of determining proximity of an object according to execution of a proximity sensing function according to various embodiments of the present disclosure.

The electronic device of FIG. 10 (eg, the electronic device 101 of FIG. 1 ) may be at least partially similar to the electronic device 200 of FIG. 2 or may further include other embodiments of the electronic device 200 . The electronic device 101 of FIG. 10 may include at least one component shown in FIG. 3 .

According to an embodiment, the electronic device 101 may use at least one light source (eg, a visible light source or a white light source) to determine whether or not the electronic device 101 is close to an object (eg, a proximity sensing function is performed). When receiving the reflected light source, the electronic device 101 can remove noise components included in the reflected light source and more accurately analyze the reflected light source. According to an embodiment, the electronic device 101 may determine proximity to an object based on the received light amount corresponding to the reflected light source. According to an embodiment, the electronic device 101 may determine a ratio of pixels covered by an object based on pixels disposed in the first area (eg, the transmission area 201′ of FIG. 2 ), and the confirmation Based on the ratio of occluded pixels, proximity to the object can be determined.

Referring to FIG. 10 , in operation 1001, a processor (eg, the processor 120 of FIG. 1 ) of the electronic device 101 displays a first region (eg, the processor 120 of FIG. 1 ) of a display module (eg, the display module 160 of FIG. 1 ). White light (eg, visible light) may be emitted through at least one pixel disposed in the transmission region 201' of 2. For example, at least one pixel may include at least one light source (eg, a red light source, a green light source, and/or a blue light source), and the at least one light source may be combined to , can produce white light. When all of the red light source, the green light source, and/or the blue light source are set to a value of 255, at least one pixel may generate white light. The electronic device 101 may utilize at least one pixel disposed in the first region 201' as a light emitting unit.

In operation 1003, when the emitted white light is reflected by an object, the processor 120 obtains reflected light through a camera module (eg, the camera module 180 of FIG. 1) disposed in the first region 201'. can For example, the camera module 180 may be disposed on the rear surface of the first region 201' (eg, the rear surface of the display module 160). The electronic device 101 may utilize the camera module 180 disposed in the first area 201' as a light receiving unit.

In operation 1005, the processor 120 determines a reflection value corresponding to at least one light source (eg, a red light source, a green light source, and/or a blue light source) based on the acquired reflected light. can For example, a frequency and an amplitude corresponding to each light source may be identified as the reflection value.

In operation 1007, the processor 120 may remove noise based on a reference value (eg, a light source reference value) stored in a memory (eg, the memory 130 of FIG. 1) and a confirmed reflection value. For example, the reference value may include a value (eg, calibration data) measured based on a calibration operation (eg, the calibration operation of FIGS. 5 and 6 ) in the electronic device 101 . The processor 120 may perform a calibration operation in advance to check at least one light source and a reference value (eg, a reference reflection value, frequency, and/or amplitude) corresponding to each light source. For example, the reference value may include a reflection value that does not include a noise component based on the external environment. According to an embodiment, the processor 120 may include a light source reference value (eg, a reflection value without a noise component generated based on the external environment) and a reflection value obtained based on a reflected light (circle) (eg, based on the external environment). A reflection value including a generated noise component) may be compared, and noise included in the reflected light may be at least partially removed.

In operation 1009, the processor 120 may calculate a received light amount value according to the obtained reflected light based on at least one light source. For example, the processor 120 may subtract a value corresponding to noise included in the reflected light from the total light received amount of the reflected light obtained through the first area 201', and the received light amount value according to the reflected light. can be calculated. According to an embodiment, the processor 120 may determine whether an object is close based on the calculated light received value.

In operation 1011, the processor 120 may check whether the calculated light reception amount value exceeds a set first threshold value. For example, the first threshold is a value previously set and stored in the memory 130, and may include a reference light received amount value for determining proximity to an object. For example, a high light reception value means that there is a lot of reflected light received through the first region 201 ′, and it may mean that the object is not close to the electronic device 101 . In operation 1011, when the calculated light reception amount value exceeds the first threshold value, in operation 1013, the processor 120 may perform an additional proximity sensing function. According to another embodiment, when the calculated light reception amount value does not exceed the first threshold value in operation 1011, the processor 120 may determine that the electronic device 101 is close to the object, and in operation 1015 the object distance can be checked.

In operation 1013, the processor 120 may determine whether a ratio of occluded pixels exceeds a set second threshold based on at least one pixel disposed in the first region 201'. For example, the second threshold is a value previously set and stored in the memory 130, and may include a reference ratio value of occluded pixels for determining proximity to an object. For example, a high ratio of occluded pixels among all pixels disposed in the first area 201' may mean that an object (eg, a human body) is close to the first area 201'. In operation 1013, when the ratio of the occluded pixels exceeds the set second threshold, the processor 120 may determine that the electronic device 101 is in close proximity to the object, and in operation 1015, it may determine the distance to the object. . According to another embodiment, when the ratio of the occluded pixels does not exceed the set second threshold in operation 1013, the processor 120 may determine that the electronic device 101 is not close to the object, and operation In 1001 , white light may be emitted based on at least one light source.

In operation 1015, the processor 120 may check the distance to the object based on the reflected light from which noise components are removed in operation 1007. For example, the processor 120 may determine a reflection value (eg, frequency and/or amplitude) corresponding to at least one light source based on the reflected light, and may determine a distance to the object based on the checked reflection value. can measure

In the method according to various embodiments, an operation of emitting at least one light source based on at least one pixel through a display module (eg, the display module 160 of FIG. 1 ), the at least one light source is applied to an object Obtaining a reflective light source reflected by the camera module (eg, the camera module 180 of FIG. 1) through a camera module, checking a reflection value corresponding to the at least one light source based on the acquired reflective light source, Based on the reference value of the light source stored in a memory (eg, the memory 130 of FIG. 1 ) and the checked reflection value, an operation of removing noise included in the reflective light source, and the noise included in the reflective light source from which the noise has been removed, An operation of determining proximity to an object may be included.

According to an embodiment, the camera module 180 is disposed on the rear surface of the first area (eg, the transmissive area 201' of FIG. 2) of the display module 160, and the first area 201' is characterized in that it has higher transmittance than other areas of the display module 160 except for the first area 201'.

The method according to an embodiment includes an operation of emitting light of at least one light source while transmitting through the first region 201' based on at least one pixel distributed in the first region 201'; When at least one emitted light source is reflected by the object, the reflected light passes through the first area 201' and through the camera module 180 disposed on the rear surface of the first area 201'. An operation of receiving the light source may be further included.

In a method according to an embodiment, in a state in which a reflector for reflecting the light source covers the first area 201', at least one light source is transmitted through at least one pixel distributed in the first area 201'. An operation of emitting light, an operation of receiving the reflected light source reflected by the reflector by the at least one light source through the camera module 180 disposed on the rear surface of the first region 201', Based on this, an operation of setting a reflection value corresponding to the at least one light source as a light source reference value, and an operation of storing the light source reference value in the memory 130 may be further included.

According to an embodiment, the light source reference value includes at least one of a reference reflection value that does not include noise according to an external environment and a frequency value and an amplitude value corresponding to the at least one light source, and the at least one light source is red. It is characterized in that it includes at least one of a (red) light source, a green light source, and a blue light source.

The method according to an embodiment may include emitting at least one light source based on the at least one pixel through the display module 160 in response to a call decision with the external electronic device; When at least one light source is reflected by an object, an operation of at least partially activating the camera module 180 to receive the reflected light source may be further included.

The method according to an embodiment includes an operation of checking a received light amount corresponding to the obtained reflected light source, an operation of checking whether the checked light received amount is less than a reference light received amount stored in the memory, based on the at least one pixel, An operation of checking the ratio of pixels covered by the object, an operation of checking whether the ratio of the identified pixels exceeds a reference ratio stored in the memory, and an operation of determining whether the received light amount is less than the reference light received amount or the ratio of the pixels When the ratio exceeds the reference ratio, an operation of determining that the object is in close proximity may be further included.

Electronic devices according to various embodiments disclosed in this document may be devices of various types. The electronic device may include, for example, a portable communication device (eg, a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance. An electronic device according to an embodiment of the present document is not limited to the aforementioned devices.

Various embodiments of this document and terms used therein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various modifications, equivalents, or substitutes of the embodiments. In connection with the description of the drawings, like reference numbers may be used for like or related elements. The singular form of a noun corresponding to an item may include one item or a plurality of items, unless the relevant context clearly dictates otherwise. In this document, "A or B", "at least one of A and B", "at least one of A or B", "A, B or C", "at least one of A, B and C", and "A Each of the phrases such as "at least one of , B, or C" may include any one of the items listed together in that phrase, or all possible combinations thereof. Terms such as "first", "second", or "first" or "secondary" may simply be used to distinguish a given component from other corresponding components, and may be used to refer to a given component in another aspect (eg, importance or order) is not limited. A (e.g., first) component is said to be "coupled" or "connected" to another (e.g., second) component, with or without the terms "functionally" or "communicatively." When mentioned, it means that the certain component may be connected to the other component directly (eg by wire), wirelessly, or through a third component.

The term "module" used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and is interchangeable with terms such as, for example, logic, logical blocks, parts, or circuits. can be used as A module may be an integrally constructed component or a minimal unit of components or a portion thereof that performs one or more functions. For example, according to one embodiment, the module may be implemented in the form of an application-specific integrated circuit (ASIC).

Various embodiments of this document provide one or more instructions stored in a storage medium (eg, internal memory 136 or external memory 138) readable by a machine (eg, electronic device 101). It may be implemented as software (eg, the program 140) including them. For example, a processor (eg, the processor 120 ) of a device (eg, the electronic device 101 ) may call at least one command among one or more instructions stored from a storage medium and execute it. This enables the device to be operated to perform at least one function according to the at least one command invoked. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The device-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-temporary' only means that the storage medium is a tangible device and does not contain a signal (eg, electromagnetic wave), and this term is used when data is stored semi-permanently in the storage medium. It does not discriminate when it is temporarily stored.

According to one embodiment, the method according to various embodiments disclosed in this document may be provided by being included in a computer program product. Computer program products may be traded between sellers and buyers as commodities. A computer program product is distributed in the form of a device-readable storage medium (e.g. compact disc read only memory (CD-ROM)), or through an application store (e.g. Play Store™) or on two user devices (e.g. It can be distributed (eg downloaded or uploaded) online, directly between smart phones. In the case of online distribution, at least part of the computer program product may be temporarily stored or temporarily created in a device-readable storage medium such as a manufacturer's server, an application store server, or a relay server's memory.

According to various embodiments, each component (eg, module or program) of the above-described components may include a single object or a plurality of entities, and some of the plurality of entities may be separately disposed in other components. there is. According to various embodiments, one or more components or operations among the aforementioned corresponding components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (eg modules or programs) may be integrated into a single component. In this case, the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by a corresponding component of the plurality of components prior to the integration. . According to various embodiments, the actions performed by a module, program, or other component are executed sequentially, in parallel, iteratively, or heuristically, or one or more of the actions are executed in a different order, or omitted. or one or more other actions may be added.

101: electronic device 120: processor
130: memory 160: display module
176: sensor module 180: camera module
310: UDC (under display camera) 320: Light source reference value

Claims (20)

In electronic devices,
a display module including at least one pixel;
a camera module disposed on a rear surface of the display module;
a memory for storing light source reference values corresponding to at least one light source; and
a processor operatively connected to the display module, the camera module and the memory; including,
the processor,
Through the display module, at least one light source emits light based on the at least one pixel,
The at least one light source acquires a reflected light source reflected by an object through the camera module,
Checking a reflection value corresponding to the at least one light source based on the obtained reflected light source;
Remove noise included in the reflection light source based on the light source reference value stored in the memory and the checked reflection value;
An electronic device that determines proximity to the object based on the reflective light source from which the noise has been removed. According to claim 1,
The camera module is disposed on the rear surface of the first area in the display module,
The electronic device, characterized in that the first region has a higher transmittance than other regions of the display module except for the first region. According to claim 2,
the processor,
An electronic device that emits at least one light source while transmitting through the first area based on at least one pixel distributed in the first area. According to claim 2,
the processor,
An electronic device in which the reflective light source receives light while passing through the first area through the camera module disposed on the rear surface of the first area. According to claim 2,
Further comprising a reflector disposed on a surface of the display module while entirely covering the first region,
the processor,
In a state where the reflector covers the first area, at least one light source emits light through at least one pixel distributed in the first area;
The at least one light source receives the reflected light source reflected by the reflector through the camera module disposed on the rear surface of the first area,
Based on the light-received reflection light source, setting a reflection value corresponding to the at least one light source as a light source reference value;
An electronic device that stores the light source reference value in the memory. According to claim 1,
The light source reference value includes at least one of a reference reflection value not including noise according to an external environment and a frequency value and an amplitude value corresponding to the at least one light source. According to claim 1,
The electronic device, characterized in that the at least one light source includes at least one of a red light source, a green light source, and a blue light source. According to claim 7,
the processor,
An electronic device that implements white light by combining the at least one light source and emits the implemented white light. According to claim 7,
the processor,
An electronic device that emits light from at least one light source among a plurality of light sources according to a set order. According to claim 1,
Further comprising a sensor module including a gyro sensor for detecting a posture of the electronic device;
the processor,
Checking the position of the electronic device using the gyro sensor;
An electronic device that emits at least one light source based on the at least one pixel through the display module when the confirmed posture matches a set posture. According to claim 1,
Further comprising a communication module for communicating with an external electronic device,
the processor,
In response to a call decision with the external electronic device through the communication module, at least one light source emits light based on the at least one pixel through the display module;
An electronic device that at least partially activates the camera module to receive the reflected light source when the at least one light source emitted is reflected by an object. According to claim 11,
the processor,
When the distance to the object is less than or equal to a set threshold, stopping the light emission operation of the at least one light source based on the at least one pixel;
An electronic device for inactivating the activated camera module. According to claim 1,
the processor,
Checking the received light amount corresponding to the obtained reflected light source;
Checking whether the confirmed light reception amount is less than the reference light reception amount stored in the memory;
Based on the at least one pixel, determine a ratio of pixels occluded by the object;
Check whether the ratio of the identified pixels exceeds a reference ratio stored in the memory;
The electronic device that determines that the object is approached when the light reception amount is less than the reference light reception amount or when the ratio of the pixels exceeds the reference ratio. in the method,
emitting at least one light source based on at least one pixel through the display module;
obtaining, through a camera module, a reflected light source in which the at least one light source is reflected by an object;
checking a reflection value corresponding to the at least one light source based on the obtained reflected light source;
removing noise included in the reflected light source based on a light source reference value stored in a memory and the checked reflection value; and
determining proximity to the object based on the reflected light source from which the noise is removed; How to include. 15. The method of claim 14,
The camera module is disposed on the rear surface of the first area in the display module,
The method of claim 1 , wherein the first region has a higher transmittance than other regions of the display module except for the first region. According to claim 15,
emitting light of at least one light source while transmitting through the first area based on at least one pixel distributed in the first area; and
when the at least one emitted light source is reflected by the object, receiving the reflected light source through the camera module disposed on a rear surface of the first area while passing through the first area; How to include more. According to claim 15,
emitting at least one light source through at least one pixel distributed in the first area in a state where a reflector for reflecting the light source covers the first area;
receiving, by the at least one light source, the reflected light source reflected by the reflector through the camera module disposed on the rear surface of the first area;
setting a reflection value corresponding to the at least one light source as a light source reference value based on the light-received reflected light source; and
storing the light source reference value in the memory; How to include more. 15. The method of claim 14,
The light source reference value includes at least one of a reference reflection value not including noise according to an external environment and a frequency value and an amplitude value corresponding to the at least one light source,
The at least one light source comprises at least one of a red light source, a green light source and a blue light source. 15. The method of claim 14,
emitting at least one light source based on the at least one pixel through the display module in response to a call decision with the external electronic device; and
activating at least partially the camera module to receive the reflected light source when the at least one emitted light source is reflected by an object; How to include more. According to claim 19,
checking an amount of received light corresponding to the obtained reflected light source;
checking whether the confirmed received light amount is less than a reference light received amount stored in the memory;
checking a ratio of pixels obscured by the object based on the at least one pixel;
checking whether the checked pixel ratio exceeds a reference ratio stored in the memory; and
determining that the object has been approached when the received light amount is less than the reference light received amount or when the ratio of the pixels exceeds the reference ratio; How to include more.

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