KR101772074B1 - Mobile terminal - Google Patents

Abstract

The present invention provides a liquid crystal display comprising a case having first and second through-holes, a portion of the case, which is mounted on the front surface of the case so as to cover the first and second through-holes and covers the first and second through-holes, A proximity sensor that detects the proximity of the external object through light reflected from an external object and has a light emitting portion and a light receiving portion adjacent to the first and second through holes respectively, And a shielding film covering an inner surface of the first and second through holes and a rear surface of the case so as to prevent light emitted from the case from being reflected by the case or entering into the light receiving unit. Lt; / RTI >

Description

[0001] MOBILE TERMINAL [0002]

The present invention relates to a mobile terminal having a proximity sensor.

A mobile terminal is a portable electronic device that is portable and has one or more functions of voice and video call function, information input / output function, and data storing function.

As the functions of the mobile terminal are diversified, the mobile terminal is implemented in the form of a multimedia device having complicated functions such as photographing and photographing of a moving picture, reproduction of a music or video file, and reception of a game and a broadcast.

Various new attempts have been made in terms of hardware or software to implement the complex functions of multimedia devices. As the above attempts, a method of further improving the functions of the hardware and the like can be considered.

A mobile terminal having a touch screen is provided with a proximity sensor to block input of a touch screen when a proximity of an object is recognized during a call. As one of the hardware improvement methods, a mobile terminal having a structure for preventing a malfunction of a proximity sensor can be considered.

It is an object of the present invention to propose a mobile terminal which can prevent a malfunction of a proximity sensor and improve a recognition rate.

According to an aspect of the present invention, there is provided a mobile terminal including a case having first and second through-holes, a case having a through- A window that is mounted on the front surface and covers the first and second through holes so as to allow light to pass therethrough, a window that detects the proximity of the external object through light reflected from the external object, The first and second through holes are formed in the through hole so that the light emitted from the light emitting portion can be transmitted through the case or reflected by the case and prevented from entering the light receiving portion, And a shielding film covering the inner surface of the hole and the rear surface of the case.

According to one embodiment of the present invention, the blocking film is formed in black so as to prevent the malfunction of the proximity sensor by lowering the transmittance and the reflectance.

According to another embodiment of the present invention, the barrier layer includes a paint layer formed on the inner surface of the first and second through holes and on the rear surface of the case in a black color.

According to the present invention having the above-described structure, a shielding film covering the inner wall of the through hole and the rear surface of the case is formed to prevent light emitted from the light emitting portion from penetrating the inner wall of the through hole or being reflected by the case to enter the light receiving portion. Therefore, malfunction of the proximity sensor can be prevented and the recognition rate can be improved.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention;
FIG. 2 is a perspective view of an example of a mobile terminal according to the present invention. FIG.
3 is a rear perspective view of the mobile terminal shown in FIG. 2;
FIG. 4 is a perspective view showing the front case and the shielding film covering the inner wall of the through hole shown in FIG. 2; FIG.
5 is a sectional view showing that the shielding film shown in Fig. 4 prevents malfunction of the proximity sensor; Fig.

Hereinafter, a mobile terminal related to the present invention will be described in detail with reference to the drawings. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role.

The mobile terminal described in this specification includes a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), an e-book, Navigation, and the like.

1 is a block diagram of a mobile terminal 100 according to an embodiment of the present invention.

The mobile terminal 100 includes a wireless communication unit 110, an audio / video input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory 160, A controller 170, a controller 180, a power supply 190, and the like. The components shown in FIG. 1 are not essential, and a mobile terminal having more or fewer components may be implemented.

Hereinafter, the components will be described in order.

The wireless communication unit 110 may include one or more modules for enabling wireless communication between the mobile terminal 100 and the wireless communication system or between the mobile terminal 100 and the network in which the mobile terminal 100 is located. For example, the wireless communication unit 110 may include a broadcast receiving module 111, a mobile communication module 112, a wireless Internet module 113, a short range communication module 114, and a location information module 115 .

The broadcast receiving module 111 receives broadcast signals and / or broadcast-related information from an external broadcast management server through a broadcast channel.

The broadcast channel may include a satellite channel and a terrestrial channel. The broadcast management server may refer to a server for generating and transmitting broadcast signals and / or broadcast related information, or a server for receiving broadcast signals and / or broadcast related information generated by the broadcast management server and transmitting the generated broadcast signals and / or broadcast related information. The broadcast signal may include a TV broadcast signal, a radio broadcast signal, a data broadcast signal, and a broadcast signal in which a data broadcast signal is combined with a TV broadcast signal or a radio broadcast signal.

The broadcast-related information may refer to a broadcast channel, a broadcast program, or information related to a broadcast service provider. The broadcast-related information may also be provided through a mobile communication network. In this case, it may be received by the mobile communication module 112.

The broadcast-related information may exist in various forms. For example, an EPG (Electronic Program Guide) of DMB (Digital Multimedia Broadcasting) or an ESG (Electronic Service Guide) of Digital Video Broadcast-Handheld (DVB-H).

For example, the broadcast receiving module 111 may be a Digital Multimedia Broadcasting-Terrestrial (DMB-T), a Digital Multimedia Broadcasting-Satellite (DMB-S), a Media Forward Link Only And a Digital Broadcasting System (ISDB-T) (Integrated Services Digital Broadcast-Terrestrial). Of course, the broadcast receiving module 111 may be adapted to other broadcasting systems as well as the digital broadcasting system described above.

The broadcast signal and / or broadcast related information received through the broadcast receiving module 111 may be stored in the memory 160.

The mobile communication module 112 transmits and receives radio signals to at least one of a base station, an external terminal, and a server on a mobile communication network. The wireless signal may include various types of data depending on a voice call signal, a video call signal or a text / multimedia message transmission / reception.

The wireless Internet module 113 is a module for wireless Internet access, and may be built in or externally attached to the mobile terminal 100. WLAN (Wi-Fi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access) and the like can be used as wireless Internet technologies.

The short-range communication module 114 refers to a module for short-range communication. Bluetooth, Radio Frequency Identification (RFID), infrared data association (IrDA), Ultra Wideband (UWB), ZigBee, and the like can be used as a short range communication technology.

The position information module 115 is a module for obtaining the position of the mobile terminal, and a representative example thereof is a Global Position System (GPS) module.

Referring to FIG. 1, an A / V (Audio / Video) input unit 120 is for inputting an audio signal or a video signal, and may include a camera 121 and a microphone 122. The camera 121 processes image frames such as still images or moving images obtained by the image sensor in the video communication mode or the photographing mode. The processed image frame can be displayed on the display unit 151. [

The image frame processed by the camera 121 may be stored in the memory 160 or transmitted to the outside through the wireless communication unit 110. [ Two or more cameras 121 may be provided depending on the use environment.

The microphone 122 receives an external sound signal through a microphone in a communication mode, a recording mode, a voice recognition mode, or the like, and processes it as electrical voice data. The processed voice data can be converted into a form that can be transmitted to the mobile communication base station through the mobile communication module 112 when the voice data is in the call mode, and output. Various noise reduction algorithms may be implemented in the microphone 122 to remove noise generated in receiving an external sound signal.

The user input unit 130 generates input data for a user to control the operation of the terminal. The user input unit 130 may include a key pad dome switch, a touch pad (static / static), a jog wheel, a jog switch, and the like.

The sensing unit 140 senses the current state of the mobile terminal 100 such as the open / close state of the mobile terminal 100, the position of the mobile terminal 100, the presence or absence of user contact, the orientation of the mobile terminal, And generates a sensing signal for controlling the operation of the mobile terminal 100. For example, when the mobile terminal 100 is in the form of a slide phone, it is possible to sense whether the slide phone is opened or closed. It is also possible to sense whether the power supply unit 190 is powered on, whether the interface unit 170 is connected to an external device, and the like. Meanwhile, the sensing unit 140 may include a proximity sensor 141.

The output unit 150 is for generating output related to the visual, auditory or tactile sense and includes a display unit 151, an audio output module 152, an alarm unit 153, and a haptic module 154 .

The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, when the mobile terminal is in the call mode, a UI (User Interface) or a GUI (Graphic User Interface) associated with a call is displayed. When the mobile terminal 100 is in the video communication mode or the photographing mode, the photographed and / or received video or UI and GUI are displayed.

The display unit 151 may be a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), a flexible display display, and a 3D display.

Some of these displays may be transparent or light transmissive so that they can be seen through. This can be referred to as a transparent display, and a typical example of the transparent display is TOLED (Transparent OLED) and the like. The rear structure of the display unit 151 may also be of a light transmission type. With this structure, the user can see an object located behind the terminal body through the area occupied by the display unit 151 of the terminal body.

There may be two or more display units 151 according to the embodiment of the mobile terminal 100. For example, in the mobile terminal 100, a plurality of display portions may be spaced apart from one another or may be disposed integrally with each other, or may be disposed on different surfaces.

(Hereinafter, referred to as a 'touch screen') in which a display unit 151 and a sensor for sensing a touch operation (hereinafter, referred to as 'touch sensor') form a mutual layer structure, It can also be used as an input device. The touch sensor may have the form of, for example, a touch film, a touch sheet, a touch pad, or the like.

The touch sensor may be configured to convert a change in a pressure applied to a specific portion of the display unit 151 or a capacitance generated in a specific portion of the display unit 151 into an electrical input signal. The touch sensor can be configured to detect not only the position and area to be touched but also the pressure at the time of touch.

If there is a touch input to the touch sensor, the corresponding signal (s) is sent to the touch controller. The touch controller processes the signal (s) and transmits the corresponding data to the controller 180. Thus, the control unit 180 can know which area of the display unit 151 is touched or the like.

Referring to FIG. 1, a proximity sensor 141 may be disposed in an inner region of the mobile terminal or in the vicinity of the touch screen, which is surrounded by the touch screen. The proximity sensor refers to a sensor that detects the presence or absence of an object approaching a predetermined detection surface or a nearby object without mechanical contact using the force of an electromagnetic field or infrared rays. The proximity sensor has a longer life span than the contact sensor and its utilization is also high.

Examples of the proximity sensor include a transmission type photoelectric sensor, a direct reflection type photoelectric sensor, a mirror reflection type photoelectric sensor, a high frequency oscillation type proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor. And to detect the proximity of the pointer by the change of the electric field along the proximity of the pointer when the touch screen is electrostatic. In this case, the touch screen (touch sensor) may be classified as a proximity sensor.

Hereinafter, for convenience of explanation, the act of recognizing that the pointer is positioned on the touch screen while the pointer is not in contact with the touch screen is referred to as "proximity touch & The act of actually touching the pointer on the screen is called "contact touch. &Quot; The position where the pointer is proximately touched on the touch screen means a position where the pointer is vertically corresponding to the touch screen when the pointer is touched.

The proximity sensor detects a proximity touch and a proximity touch pattern (e.g., a proximity touch distance, a proximity touch direction, a proximity touch speed, a proximity touch time, a proximity touch position, a proximity touch movement state, and the like). Information corresponding to the detected proximity touch operation and the proximity touch pattern may be output on the touch screen.

The audio output module 152 may output audio data received from the wireless communication unit 110 or stored in the memory 160 in a call signal reception mode, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, The sound output module 152 also outputs sound signals related to functions (e.g., call signal reception sound, message reception sound, etc.) performed in the mobile terminal 100. [ The audio output module 152 may include a receiver, a speaker, a buzzer, and the like.

The alarm unit 153 outputs a signal for notifying the occurrence of an event of the mobile terminal 100. Examples of events that occur in the mobile terminal include call signal reception, message reception, key signal input, touch input, and the like. The alarm unit 153 may output a signal for notifying the occurrence of an event in a form other than the video signal or the audio signal, for example, vibration. The video signal or the audio signal may be output through the display unit 151 or the audio output module 152 so that they may be classified as a part of the alarm unit 153.

The haptic module 154 generates various tactile effects that the user can feel. A typical example of the haptic effect generated by the haptic module 154 is vibration. The intensity and pattern of the vibration generated by the hit module 154 can be controlled. For example, different vibrations may be synthesized and output or sequentially output.

In addition to the vibration, the haptic module 154 may include a pin arrangement vertically moving with respect to the contact skin surface, a spraying force or a suction force of the air through the injection port or the suction port, a touch on the skin surface, contact with an electrode, And various tactile effects such as an effect of reproducing a cold sensation using an endothermic or exothermic element can be generated.

The haptic module 154 can be implemented not only to transmit the tactile effect through the direct contact but also to allow the user to feel the tactile effect through the muscular sensation of the finger or arm. At least two haptic modules 154 may be provided according to the configuration of the mobile terminal 100.

The memory 160 may store a program for the operation of the controller 180 and temporarily store input / output data (e.g., a phone book, a message, a still image, a moving picture, etc.). The memory 160 may store data on vibration and sound of various patterns outputted when a touch is input on the touch screen.

The memory 160 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory), a RAM (Random Access Memory), SRAM (Static Random Access Memory), ROM (Read Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM A disk, and / or an optical disk. The mobile terminal 100 may operate in association with a web storage that performs a storage function of the memory 160 on the Internet.

The interface unit 170 serves as a path for communication with all external devices connected to the mobile terminal 100. The interface unit 170 receives data from an external device or supplies power to each component in the mobile terminal 100 or transmits data to the external device. For example, a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, a port for connecting a device having an identification module, an audio I / O port, A video input / output (I / O) port, an earphone port, and the like may be included in the interface unit 170.

The identification module is a chip for storing various information for authenticating the use right of the mobile terminal 100 and includes a user identification module (UIM), a subscriber identity module (SIM), a general user authentication module A Universal Subscriber Identity Module (USIM), and the like. Devices with identification modules (hereinafter referred to as "identification devices") can be manufactured in a smart card format. Accordingly, the identification device can be connected to the terminal 100 through the port.

When the mobile terminal 100 is connected to an external cradle, the interface unit may be a path through which power from the cradle is supplied to the mobile terminal 100, or various command signals input by the user to the cradle may be transmitted It can be a passage to be transmitted to the terminal. The various command signals or the power source input from the cradle may be operated as a signal for recognizing that the mobile terminal is correctly mounted on the cradle.

The controller 180 typically controls the overall operation of the mobile terminal. For example, voice communication, data communication, video communication, and the like. The control unit 180 may include a multimedia module 181 for multimedia playback. The multimedia module 181 may be implemented in the control unit 180 or may be implemented separately from the control unit 180. [

The controller 180 may perform a pattern recognition process for recognizing handwriting input or drawing input performed on the touch screen as characters and images, respectively.

The power supply unit 190 receives external power and internal power under the control of the controller 180 and supplies power necessary for operation of the respective components.

The various embodiments described herein may be embodied in a recording medium readable by a computer or similar device using, for example, software, hardware, or a combination thereof.

2 is a perspective view of an example of a mobile terminal 100 according to the present invention.

The disclosed mobile terminal 100 includes a bar-shaped terminal body. However, the present invention is not limited thereto, and can be applied to various structures such as a slide type, a folder type, a swing type, and a swivel type in which two or more bodies are relatively movably coupled.

The body includes a case (a casing, a housing, a cover, and the like) which forms an appearance. In this embodiment, the case may be divided into a front case 101 and a rear case 102. [ A variety of electronic components are embedded in the space formed between the front case 101 and the rear case 102. At least one intermediate case may be additionally disposed between the front case 101 and the rear case 102. [

The cases may be formed by injection molding a synthetic resin, or may be formed to have a metal material such as stainless steel (STS) or titanium (Ti) or the like.

The display unit 151, the sound output unit 152, the camera 121, the user input units 130/131 and 132, the microphone 122, the interface 170, and the like may be disposed in the front body 101 have.

The display unit 151 occupies most of the main surface of the front case 101. The camera 121 and the proximity sensor 141 are arranged in a region adjacent to one end of the both ends of the display unit 151 and the user input unit 131 and the microphone 122 . The user input unit 132 and the interface 170 may be disposed on the side surfaces of the front case 101 and the rear case 102. [

The user input unit 130 is operated to receive a command for controlling the operation of the mobile terminal 100 and may include a plurality of operation units 131 and 132. The operation units 131 and 132 may be collectively referred to as a manipulating portion and may be employed in any manner as long as the user operates in a tactile manner.

The contents inputted by the first or second operation unit 131 or 132 may be variously set. For example, the first operation unit 131 receives commands such as start, end, scroll, and the like, and the second operation unit 132 controls the size of the sound output from the sound output unit 152 or the size of the sound output from the display unit 151 To the touch recognition mode of the touch screen.

3 is a rear perspective view of the mobile terminal 100 shown in Fig.

Referring to FIG. 3, a camera 121 'may be further mounted on the rear surface of the terminal body, that is, the rear case 102. The camera 121 'may have a photographing direction substantially opposite to the camera 121 (see FIG. 2A), and may be a camera having different pixels from the camera 121.

For example, the camera 121 may have a low pixel so that the face of the user can be photographed and transmitted to the other party in case of a video call or the like, and the camera 121 ' It is preferable to have a large number of pixels. The cameras 121 and 121 'may be installed in the terminal body so as to be rotatable or pop-upable.

A flash 123 and a mirror 124 are additionally disposed adjacent to the camera 121 '. The flash 123 illuminates the subject when the subject is photographed by the camera 121 '. The mirror 124 allows the user to illuminate the user's own face or the like when the user intends to shoot himself / herself (self-photographing) using the camera 121 '.

An acoustic output 152 'may be additionally disposed on the rear surface of the terminal body. The sound output unit 152 'may implement the stereo function together with the sound output unit 152 (see FIG. 2A), and may be used for the implementation of the speakerphone mode during a call.

In addition to the antenna for a call or the like, a broadcast signal reception antenna 124 may be additionally disposed on the side of the terminal body. The antenna 124 constituting a part of the broadcast receiving module 111 (see FIG. 1) may be installed to be able to be drawn out from the terminal body.

A power supply unit 190 for supplying power to the mobile terminal 100 is mounted on the terminal body. The power supply unit 190 may be built in the terminal body or may be detachable from the outside of the terminal body.

Hereinafter, the mobile terminal 100 having a structure for preventing malfunction of the proximity sensor 141 will be described in more detail.

4 is a perspective view showing the rear surface of the front case 101 shown in Fig. 2, showing a shielding film 200 covering the inner wall of the through hole 241 and the rear surface of the front case 101. Fig.

Referring to FIG. 4, the front case 101 includes first and second through holes 241a and 241b. The first and second through holes 241a and 241b serve as passages through which the light coming and going from the proximity sensor 141 can move. The first and second through holes 241a and 241b may be disposed adjacent to the acoustic output module 152 where the user's ear or ball is in close proximity during a call.

A window 155 is mounted on the front surface of the front case 101 so as to cover the display unit 151. The window 155 may be disposed to cover the first and second through holes 241a and 241b and the portion covering the first and second through holes 241a and 241b may be formed to transmit light.

A printed circuit board 182 is mounted in the inner space of the mobile terminal 100 formed by the window 155 and the front and rear cases 101 and 102. A control unit 180 may be provided on the printed circuit board 182 to control various electronic components for performing various functions of the mobile terminal 100 and their operations.

The printed circuit board 182 may be provided with a proximity sensor 141 having a light emitting portion 141a and a light receiving portion 141b. The light emitting portion 141a and the light receiving portion 141b are disposed adjacent to the first and second through holes 241a and 241b. The proximity sensor 141 is configured to detect proximity of an external object through light reflected from an external object.

The proximity sensor 141 includes a light emitting portion 141a and a light receiving portion 141b. The light emitting portion 141a emits light in order to sense whether the external object is in proximity to it, and the light receiving portion 141b receives light reflected from an external object.

The control unit 180 senses the proximity of an external object through the proximity sensor 141 and is configured to allow or block the user's input through the display unit 151. [ For example, when a user's ear or ball approaches a sound output module 152 during a call, a proximity sensor 141 disposed adjacent to the sound output module 152 detects the proximity of the external object. When proximity of an external object is detected, the control unit 180 may block input from the touch screen or turn off the power of the display unit 151.

Blocking walls 142, 143 and 144 may be formed between the side surfaces of the light emitting portion 141a and the light receiving portion 141b and between the light emitting portion 141a and the light receiving portion 141b. The blocking walls 142, 143 and 144 serve to prevent light emitted from the light emitting portion 141a from directly entering the light receiving portion 141b or from leaking into regions other than the first and second through holes 241a and 241b do.

An IR sensor (Infrared Sender) may be used to detect whether the proximity sensor 141 is closer to a predetermined distance than the predetermined distance by using infrared rays. The light emitting portion 141a of the proximity sensor 141 may be, for example, a light emitting diode that emits infrared rays.

The light emitting portion 141a and the light receiving portion 141b are disposed adjacent to the first and second through holes 241a and 241b on the rear surface of the front case 101, respectively. The inner wall of the first and second through holes 241a and 241b and the rear face of the front case 101 are provided with a first through hole 241a for transmitting or reflecting light that does not pass through the first through hole 241a A blocking film 200 for blocking can be formed.

The shielding film 200 is a structure in which light emitted from the light emitting portion 141a is transmitted through the first or second through holes 241a and 241b on the inner side surface or reflected by the rear surface of the front case 101 and enters the light receiving portion 141b . That is, the shielding film 200 serves to prevent the light emitted from the light emitting portion 141a from being reflected by the external object and entering the light receiving portion 141b. Therefore, malfunction of the proximity sensor 141 can be prevented, and the recognition rate can be improved.

5 is a sectional view showing that the shielding film 200 shown in FIG. 4 prevents malfunction of the proximity sensor 141. FIG.

Referring to FIG. 5, the front case 101 is provided with first and second through holes 241a and 241b. A window 155 may be mounted on the front surface of the front case 101 so as to cover the first and second through holes 241a and 241b. The proximity sensor 141 including the light emitting portion 141a and the light receiving portion 141b is mounted on the printed circuit board 182. The light emitting portion 141a and the light receiving portion 141b are connected to the first and second through holes 241a , And 241b.

Light emitted from the light emitting portion 141a is emitted to the outside of the mobile terminal 100 through the first through hole 241a and light reflected by the external object passes through the second through hole 241b and passes through the light receiving portion 141b ).

In this process, a part of light emitted from the light emitting portion 141a may be radiated in a direction crossing the axial direction of the first through hole 241a. If the part enters the light receiving part 141b, it is recognized as the proximity of the external object and the proximity sensor 141 may malfunction.

In order to prevent this, blocking walls 142, 143 and 144 may be provided between the side surfaces of the light emitting portion 141a and the light receiving portion 141b and between the light emitting portion 141a and the light receiving portion 141b. The blocking walls 142, 143, and 144 may be formed in black, for example, to reduce the transmittance and the reflectance.

The inner wall of the first and second through holes 241a and 241b and the rear surface of the front case 101, specifically, the proximity sensor 141 and the front case 101 A shielding film 200 covering the opposing surfaces of the electrodes 101 may be disposed. The shielding film 200 transmits light emitted from the light emitting portion 141a in a direction crossing the axial direction of the first or second through holes 241a and 241b or is reflected by the front case 101 to be received by the light receiving portion 141b It blocks entry.

The shielding film 200 may be formed in black so as to prevent the malfunction of the proximity sensor 141 by lowering the transmittance and the reflectance. The shielding film 200 may be a coating layer formed to cover the inner wall of the first and second through holes 241a and 241b and the rear surface of the front case 101. [ Alternatively, the front case 101 and the shielding film 200 may be integrally formed by double injection molding.

As described above, the blocking walls 142, 143, and 144 are formed in the proximity sensor 141, and the blocking film 200 is disposed to cover the rear surface of the front case 101, The light is allowed to enter the light-receiving unit 141b only when reflected from an external object. Therefore, the malfunction of the proximity sensor 141 can be prevented, and the recognition rate of the proximity sensor 141 can be improved.

The mobile terminal described above is not limited to the configuration and method of the embodiments described above, but the embodiments may be configured by selectively combining all or a part of the embodiments so that various modifications may be made.

Claims (3)

A case having first and second through-holes;
A window mounted on a front surface of the case so as to cover the first and second through-holes, the window covering the first and second through-holes being formed so as to allow light to pass therethrough;
A proximity sensor for sensing the proximity of the external object through light reflected from an external object and having a light emitting portion and a light receiving portion adjacent to the first and second through holes, respectively;
A shielding film covering an inner surface of the first and second through holes and a rear surface of the case so as to prevent light emitted from the light emitting unit from being transmitted through the case or reflected by the case and entering the light receiving unit; And
A first blocking wall disposed between the light emitting portion and the light receiving portion, a second blocking wall spaced apart from the first blocking wall with the light emitting portion interposed therebetween, and a third blocking wall spaced apart from the first blocking wall by the light receiving portion, And a blocking wall including a blocking wall, wherein the first to third blocking walls are formed integrally with the light emitting portion and the light receiving portion. The method according to claim 1,
Wherein the shielding film is formed in a black color so as to prevent a malfunction of the proximity sensor by lowering transmittance and reflectance. The method according to claim 1,
Wherein the blocking film includes a paint layer formed on the inner surface of the first and second through holes and the rear surface of the case in a black color.

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