KR20120021608A - Mobile terminal - Google Patents

Abstract

PURPOSE: A mobile terminal is provided to prevent light of a light emitting unit from being incident onto a light receiving unit. CONSTITUTION: A window(155) covers first and second through holes(241a,241b). The window is mounted on the frontal side of a case(101). A proximity sensor(141) senses approach of an external object by light reflected from an external object. The proximity sensor includes a lighting emitting unit(141a) and a light receiving unit(141b). A blocking film(200) prevents light from being incident onto the light receiving unit. The blocking film covers the inner sides of the first and second through holes and the rear side of the case.

Description

Mobile terminal {MOBILE TERMINAL}

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

Mobile terminals are portable electronic devices that are portable and have one or more functions such as voice and video calling, information input / output, and data storage.

As the functions are diversified, for example, the mobile terminal is implemented in the form of a multimedia player having complex functions such as taking a picture or a video, playing a music or a video file, and receiving a game or 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 function of the hardware or the like may be considered.

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

One object of the present invention is to propose a mobile terminal capable of preventing a malfunction of a proximity sensor and improving a recognition rate.

In order to achieve the above object of the present invention, a mobile terminal according to an embodiment of the present invention includes a case having a first and second through hole, and the case of the case to cover the first and second through hole. A portion mounted on the front surface and covering the first and second through holes may detect a proximity of the external object through a window formed to allow light to pass therethrough and light reflected from an external object, and detect the proximity of the first and second through holes. A proximity sensor having a light emitting portion and a light receiving portion adjacent to the through hole, respectively, and the first and second passages so that light emitted from the light emitting portion can pass through the case or be reflected by the case to block the light receiving portion from entering the light receiving portion. And a blocking film covering an inner surface of the hole and a rear surface of the case.

According to an example related to the present invention, the blocking film is formed in black so as to prevent a malfunction of the proximity sensor by reducing transmittance and reflectance.

According to another embodiment related to the present invention, the blocking film includes a paint layer formed in black on the inner side surfaces of the first and second through holes and the rear side of the case.

According to the present invention having the above configuration, a blocking film covering the inner wall of the through hole and the rear surface of the case is formed to block light from the light emitting portion from passing through the inner wall of the through hole or 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;
Figure 2 is a front perspective view of an example of a mobile terminal according to the present invention.
3 is a rear perspective view of the mobile terminal shown in FIG. 2;
4 is a perspective view illustrating a barrier film covering an inner wall of the front case and the through hole shown in FIG.
5 is a cross-sectional view showing that the blocking film shown in FIG. 4 prevents a malfunction of the proximity sensor.

Hereinafter, a mobile terminal according to the present invention will be described in more detail with reference to the accompanying 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 herein includes a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), an e-book, Navigation, etc. may be included.

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 A / V input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory 160, and an interface. The unit 170, the controller 180, and the power supply unit 190 may be included. The components shown in FIG. 1 are not essential, so that 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 that enable wireless communication between the mobile terminal 100 and the wireless communication system or between the mobile terminal 100 and a 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 reception module 111 receives a broadcast signal 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 mean a server that generates and transmits a broadcast signal and / or broadcast related information or a server that receives a previously generated broadcast signal and / or broadcast related information and transmits the same to a terminal. The broadcast signal may include not only a TV broadcast signal, a radio broadcast signal, and a data broadcast signal, but also a broadcast signal having a data broadcast signal combined with a TV broadcast signal or a radio broadcast signal.

The broadcast related information may mean information related to a broadcast channel, a broadcast program, or 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, it may exist in the form of Electronic Program Guide (EPG) of Digital Multimedia Broadcasting (DMB) or Electronic Service Guide (ESG) of Digital Video Broadcast-Handheld (DVB-H).

The broadcast receiving module 111 may include, for example, Digital Multimedia Broadcasting-Terrestrial (DMB-T), Digital Multimedia Broadcasting-Satellite (DMB-S), Media Forward Link Only (MediaFLO), and Digital Video Broadcast (DVB-H). Digital broadcast signals can be received using digital broadcasting systems such as Handheld and Integrated Services Digital Broadcast-Terrestrial (ISDB-T). Of course, the broadcast receiving module 111 may be configured to be suitable for not only the above-described digital broadcasting system but also other broadcasting systems.

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 a wireless signal with 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 according to transmission and reception of a voice call signal, a video call call signal, or a text / multimedia message.

The wireless internet module 113 refers to a module for wireless internet access and may be embedded or external to the mobile terminal 100. Wireless Internet technologies may include Wireless LAN (Wi-Fi), Wireless Broadband (Wibro), World Interoperability for Microwave Access (Wimax), High Speed Downlink Packet Access (HSDPA), and the like.

The short range communication module 114 refers to a module for short range communication. As a short range communication technology, Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, and the like may be used.

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

Referring to FIG. 1, the A / V 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 call mode or the photographing mode. The processed image frame may 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 according to the use environment.

The microphone 122 receives an external sound signal by a microphone in a call mode, a recording mode, a voice recognition mode, etc., and processes the external sound signal into 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. The microphone 122 may implement various noise removing algorithms for removing noise generated in the process of receiving an external sound signal.

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

The sensing unit 140 detects a current state of the mobile terminal 100 such as an open / closed state of the mobile terminal 100, a location of the mobile terminal 100, presence or absence of a user contact, orientation of the mobile terminal, acceleration / deceleration of the mobile terminal, and the like. To generate 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 may sense whether the slide phone is opened or closed. In addition, whether the power supply unit 190 is supplied with power, whether the interface unit 170 is coupled to the external device may be sensed. The sensing unit 140 may include a proximity sensor 141.

The output unit 150 is used to generate an output related to sight, hearing, or tactile sense, and includes a display unit 151, an audio output module 152, an alarm unit 153, and a haptic module 154. Can be.

The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, when the mobile terminal is in a call mode, the mobile terminal displays a user interface (UI) or a graphic user interface (GUI) related to the call. When the mobile terminal 100 is in a video call mode or a photographing mode, the mobile terminal 100 displays photographed and / or received images, a UI, and a GUI.

The display unit 151 includes a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), and a flexible display (flexible). and at least one of a 3D display.

Some of these displays can be configured to be transparent or light transmissive so that they can be seen from the outside. This may be referred to as a transparent display. A representative example of the transparent display is TOLED (Transparant OLED). The rear structure of the display unit 151 may also be configured as a light transmissive structure. With this structure, the user can see the 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 implementation form 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 one another, and may be disposed on different surfaces, respectively.

When the display unit 151 and a sensor for detecting a touch operation (hereinafter, referred to as a touch sensor) form a mutual layer structure (hereinafter referred to as a touch screen), the display unit 151 may be configured in addition to an output device. Can also be used as an input device. The touch sensor may have, for example, a form of a touch film, a touch sheet, a touch pad, or the like.

The touch sensor may be configured to convert a change in pressure applied to a specific portion of the display unit 151 or capacitance generated in a specific portion of the display unit 151 into an electrical input signal. The touch sensor may be configured to detect not only the position and area of the touch but also the pressure at the 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 then transmits the corresponding data to the controller 180. As a result, the controller 180 can know which area of the display unit 151 is touched.

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 an object present in the vicinity without using a mechanical contact by using an electromagnetic force or infrared rays. Proximity sensors have a longer life and higher utilization than touch sensors.

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

Hereinafter, for convenience of explanation, the act of allowing the pointer to be recognized without being in contact with the touch screen so that the pointer is located on the touch screen is referred to as a "proximity touch", and the touch The act of actually touching the pointer on the screen is called "contact touch." The position where the proximity touch is performed by the pointer on the touch screen refers to a position where the pointer is perpendicular to the touch screen when the pointer is in proximity proximity.

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

The sound 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, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, and the like. The sound output module 152 may also output a sound signal related to a function (eg, a call signal reception sound, a message reception sound, etc.) performed in the mobile terminal 100. The sound output module 152 may include a receiver, a speaker, a buzzer, and the like.

The alarm unit 153 outputs a signal for notifying occurrence of an event of the mobile terminal 100. Examples of events occurring in the mobile terminal include call signal reception, message reception, key signal input, and touch input. The alarm unit 153 may output a signal for notifying occurrence of an event in a form other than a video signal or an 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 151 and 152 may be classified as part of the alarm unit 153.

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

In addition to vibration, the haptic module 154 may be configured to provide a pin array that vertically moves with respect to the contact skin surface, a jetting force or suction force of air through an injection or inlet port, grazing to the skin surface, contact of an electrode, electrostatic force, and the like. Various tactile effects can be generated, such as effects by the endothermic and the reproduction of a sense of cold using the elements capable of endotherm or heat generation.

The haptic module 154 may not only deliver the haptic effect through direct contact, but also may implement the user to feel the haptic effect through a muscle sense such as a finger or an arm. Two or more haptic modules 154 may be provided according to configuration aspects of the mobile terminal 100.

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

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), RAM (Random Access Memory, RAM), Static Random Access Memory (SRAM), Read-Only Memory (ROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Programmable Read-Only Memory (PROM), Magnetic Memory, Magnetic It may include a storage medium of at least one type of disk, optical disk. The mobile terminal 100 may operate in connection with a web storage that performs a storage function of the memory 160 on the Internet.

The interface unit 170 serves as a path with all external devices connected to the mobile terminal 100. The interface unit 170 receives data from an external device, receives power, transfers the power to each component inside the mobile terminal 100, or transmits data inside the mobile terminal 100 to an 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 that stores various types of information for authenticating the usage rights of the mobile terminal 100, and includes a user identification module (UIM), a subscriber identify module (SIM), and a universal user authentication module ( 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.

The interface unit may be a passage through which power from the cradle is supplied to the mobile terminal 100 when the mobile terminal 100 is connected to an external cradle, or various command signals input from the cradle by a user may be moved. It may be a passage that is delivered to the terminal. Various command signals or power input from the cradle may be operated as signals 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, perform related control and processing for voice calls, data communications, video calls, and the like. The controller 180 may include a multimedia module 181 for playing multimedia. The multimedia module 181 may be implemented in the controller 180 or may be implemented separately from the controller 180.

The controller 180 may perform a pattern recognition process for recognizing a writing input or a drawing input performed on the touch screen as text and an image, respectively.

The power supply unit 190 receives an external power source and an internal power source under the control of the controller 180 to supply power for operation of each component.

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

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

The disclosed mobile terminal 100 has a terminal body in the form of a bar. However, the present invention is not limited thereto and may be applied to various structures such as a slide type, a folder type, a swing type, a swivel type, and two or more bodies are coupled to be relatively movable.

The body includes a casing (casing, housing, cover, etc.) that forms an exterior. In this embodiment, the case may be divided into a front case 101 and a rear case 102. Various electronic components are built in the space formed between the front case 101 and the rear case 102. At least one intermediate case may be further disposed between the front case 101 and the rear case 102.

The cases may be formed by injecting synthetic resin or may be formed of a metal material, for example, a metal material such as stainless steel (STS) or titanium (Ti).

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

The display unit 151 occupies most of the main surface of the front case 101. The audio output unit 152, the camera 121, and the proximity sensor 141 are disposed in an area adjacent to one end of both ends of the display unit 151, and the user input unit 131 and the microphone 122 are located in an area adjacent to the other end. ) Is placed. The user input unit 132 and the interface 170 may be disposed on 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 manipulation units 131 and 132 may also be collectively referred to as manipulating portions, and may be employed in any manner as long as the user operates the tactile manner with a tactile feeling.

Content input by the first or second manipulation units 131 and 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. 2.

Referring to FIG. 3, a camera 121 ′ may be additionally mounted on the rear 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 has a low pixel so that the user's face is photographed and transmitted to the counterpart in case of a video call, and the camera 121 'photographs a general subject and does not transmit it immediately. It is desirable to have a high pixel because there are many. 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 further disposed adjacent to the camera 121 '. The flash 123 shines light toward the subject when the subject is photographed by the camera 121 '. The mirror 124 allows the user to see his / her own face or the like when photographing (self-photographing) the user using the camera 121 '.

The sound output unit 152 'may be further disposed on the rear surface of the terminal body. The sound output unit 152 ′ may implement a stereo function together with the sound output unit 152 (see FIG. 2A), and may be used to implement a 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.

The terminal body is equipped with a power supply unit 190 for supplying power to the mobile terminal 100. The power supply unit 190 may be embedded in the terminal body or may be directly detachable from the outside of the terminal body.

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

4 is a perspective view illustrating a rear surface of the front case 101 illustrated in FIG. 2, and shows a blocking film 200 covering an inner wall of the through hole 241 and a rear surface of the front case 101.

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 light exiting and entering the proximity sensor 141 may move. The first and second through holes 241a and 241b may be disposed adjacent to the sound output module 152 to which the ear or the ball of the user approaches during a call.

A window 155 is mounted on the front surface of the front case 101 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.

The printed circuit board 182 is mounted in an internal space of the mobile terminal 100 formed by the window 155 and the front and rear cases 101 and 102. The printed circuit board 182 may be provided with various electronic components for performing various functions of the mobile terminal 100 and a controller 180 for controlling their operations.

The PCB 182 may be equipped with a proximity sensor 141 having a light emitting unit 141a and a light receiving unit 141b. The light emitting part 141a and the light receiving part 141b are disposed adjacent to the first and second through holes 241a and 241b. The proximity sensor 141 may be configured to detect the proximity of the external object through the light reflected from the external object.

The proximity sensor 141 includes a light emitter 141a and a light receiver 141b. The light emitter 141a emits light to detect proximity of an external object, and the light receiver 141b receives light reflected from the external object.

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

Blocking walls 142, 143, and 144 may be formed between the light emitting part 141a and the light receiving part 141b and between the light emitting part 141a and the light receiving part 141b. The blocking walls 142, 143, and 144 block light from the light emitting unit 141a from directly entering the light receiving unit 141b or leaking out of areas other than the first and second through holes 241a and 241b. do.

An infrared sensor may be used as the proximity sensor 141 that detects whether an external object is closer than a preset distance using infrared rays. The light emitter 141a of the proximity sensor 141 may be, for example, a light emitting diode emitting infrared light.

The light emitting unit 141a and the light receiving unit 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 walls of the first and second through holes 241a and 241b and the back of the front case 101 transmit or reflect light that does not pass through the first through hole 241a of the light emitted from the light emitting unit 141a. A blocking film 200 for blocking may be formed.

The blocking film 200 may allow light emitted from the light emitting part 141a to pass through the inner side of the first or second through holes 241a and 241b or may be reflected by the rear surface of the front case 101 to enter the light receiving part 141b. Block it. That is, the blocking film 200 serves to block light emitted from the light emitting unit 141a from entering the light receiving unit 141b without being reflected by an external object. Therefore, malfunction of the proximity sensor 141 can be prevented and the recognition rate can be improved.

5 is a cross-sectional view illustrating that the blocking film 200 illustrated in FIG. 4 prevents a malfunction of the proximity sensor 141.

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 to cover the first and second through holes 241a and 241b. The proximity sensor 141 including the light emitting unit 141a and the light receiving unit 141b is mounted on the printed circuit board 182, and the light emitting unit 141a and the light receiving unit 141b are respectively provided with the first and second through holes 241a. , 241b).

Light emitted from the light emitting unit 141a exits the outside of the mobile terminal 100 through the first through hole 241a, and light reflected by an external object passes through the second through hole 241b and receives the light receiving unit 141b. To enter.

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

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

In addition, between the front case 101 and the proximity sensor 141, the inner walls of the first and second through holes 241a and 241b and the back of the front case 101, specifically, the proximity sensor 141 and the front case ( The blocking film 200 covering the opposite surface of the 101 may be disposed. The blocking film 200 is transmitted through the light emitted from the light emitting part 141a in the direction crossing the axial direction of the first or second through holes 241a and 241b or reflected by the front case 101 to the light receiving part 141b. Block entry

The blocking layer 200 may be formed in black so as to prevent malfunction of the proximity sensor 141 by lowering transmittance and reflectance. The blocking film 200 may be a paint layer formed to cover inner walls of the first and second through holes 241a and 241b and a rear surface of the front case 101. Alternatively, the front case 101 and the blocking 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, thereby radiating from the light emitting unit 141a. The light may enter the light receiving unit 141b only when reflected from an external object. Therefore, 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 some of the embodiments so that various modifications can be made.

Claims (3)

A case having first and second through holes;
A window mounted on a front surface of the case to cover the first and second through holes, and a portion covering the first and second through holes to allow light to pass therethrough;
A proximity sensor which detects the proximity of the external object through light reflected from an external object and includes a light emitting part and a light receiving part adjacent to the first and second through-holes, respectively; And
And a blocking film covering inner surfaces of the first and second through holes and a rear surface of the case so that light emitted from the light emitting part may pass through the case or be reflected by the case to block the light entering the light receiving part. Mobile terminal. The method of claim 1,
The blocking film is formed in black so as to reduce the transmittance and reflectance to prevent malfunction of the proximity sensor. The method of claim 1,
The blocking film is a mobile terminal, characterized in that it comprises a paint layer formed in black on the inner surface of the first and second through holes and the back of the case.

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