KR20130091185A - Mobile terminal - Google Patents

Abstract

The present invention comprises a window constituting one surface of the terminal body, an input key accommodated in the hole and at least partially exposed to the outside and disposed to form a gap with the window, and disposed below the window. It provides a mobile terminal comprising a speaker for emitting sound to the gap and the inside of the terminal body, and a support member formed to support the signal input unit and the speaker.

Description

[0001] MOBILE TERMINAL [0002]

The present invention relates to a mobile terminal in which the sound of a speaker is emitted to the front of the terminal body.

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.

In addition, mobile terminals are regarded as personal items for expressing their individuality, and various design forms are required. The design form also includes structural changes and improvements for the user to more conveniently use the mobile terminal.

Recently, attempts have been made to minimize the openings formed in the exterior of the mobile terminal in order to simplify the design of the exterior of the mobile terminal.

The speaker hole necessary for the speaker disposed inside the terminal to emit sound to the outside is formed separately in the rear of the terminal body, which hinders the simplicity of the appearance of the terminal and has a problem of degrading sound feeling.

The technical problem of the present invention is to improve the performance of the speaker, and to provide a mobile terminal with a simple appearance of the mobile terminal.

In order to achieve the object of the present invention, a mobile terminal according to an embodiment of the present invention includes a window, an input key, a speaker and a support member. The window constitutes one surface of the terminal body and includes a hole. The speaker is disposed below the window and emits sound into the gap. The support member is disposed inside the main body of the terminal and is formed to support the signal input unit and the speaker.

As an example related to the present invention, the mobile terminal is formed to protrude from the support member to surround the speaker so as to guide the sound into the gap.

As an example related to the present invention, one end of the guide part is formed to contact the window to block the sound.

As an example related to the present invention, the speaker is disposed under the signal input unit to support the input key.

As an example related to the present invention, a dome switch disposed under the input key and receiving a signal by pressurization, a circuit board contacting the dome switch and transmitting and receiving the signal, and at least partially overlapping the speaker It includes.

As an example related to the present invention, a dome switch and a circuit board disposed under the input key are formed on the support member. The speaker is formed on the support member and disposed adjacent to the dome switch.

As an example related to the present invention, a support part is formed on at least one surface of the speaker facing the window to secure a spaced space between the speaker and the window.

As an example related to the present invention, a filter part is formed in at least a part of a gap to prevent foreign material from entering into the terminal body.

As an example related to the present invention, a fixing member is formed in one region of the gap to support the input key to be movable.

The speaker of the present invention is disposed adjacent to the input key and emits sound through a gap between the window and the input key. Therefore, since a separate configuration for emitting sound is unnecessary, the appearance is simply realized, and the manufacturing process is simplified.

In addition, the possibility of the sound cut off from the user is reduced, and the sound output quality is improved because the sound transmitted to the internal space is blocked by the guide unit.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention;
FIG. 2A is a perspective view of a mobile terminal according to an exemplary embodiment of the present invention. FIG.
FIG. 2B is a rear perspective view of the mobile terminal shown in FIG. 2A. FIG.
3 is an exploded view of the mobile terminal of FIG. 2A;
4 is a cross-sectional view of the mobile terminal of FIG. 3 taken along AA according to one embodiment;
5 is a plan view of FIG. 4 as viewed in the direction B;
6 is a cross-sectional view of the mobile terminal of FIG. 3 taken along AA according to another embodiment.

Hereinafter, a mobile terminal related to the present invention will be described in detail with reference to the drawings. In the present specification, the same or similar reference numerals are given to different embodiments in the same or similar configurations. As used herein, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise.

The mobile terminal described in this specification may include a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), and navigation. However, it will be understood by those skilled in the art that the configuration according to the embodiments described herein may be applied to a fixed terminal such as a digital TV, a desktop computer, and the like, unless the configuration is applicable only to a mobile terminal.

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 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 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, 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).

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 Broadcast-Handheld (ISDB-T), Integrated Services Digital Broadcast-Terrestrial (ISDB-T), and the like. 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. 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. 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 call 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 pressure / capacitance), 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 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. 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.

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 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. 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 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 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. 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 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 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 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 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. Vibration is a representative example of the haptic effect generated by the haptic module 154. 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 be used for stimulation such as a pin array vertically moving with respect to the contact skin surface, a jetting force or suction force of air through an injection or inlet, grazing to the skin surface, contact of an electrode, and electrostatic force. 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 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. The haptic module 154 may include two or more haptic modules 154 according to the configuration of the portable 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 170 may be a path through which power from the cradle is supplied to the mobile terminal 100, or various commands A signal may be a path through which the signal is transmitted to the mobile 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.

According to a hardware implementation, the embodiments described herein include application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), and the like. It may be implemented using at least one of processors, controllers, micro-controllers, microprocessors, and electrical units for performing other functions. The described embodiments may be implemented by the controller 180 itself.

According to the software implementation, embodiments such as the procedures and functions described herein may be implemented as separate software modules. Each of the software modules may perform one or more of the functions and operations described herein. Software code can be implemented in a software application written in a suitable programming language. The software code is stored in the memory 160 and can be executed by the control unit 180. [

2A is a perspective view of a mobile terminal according to an embodiment of the present invention. 2B is a rear perspective view of the mobile terminal shown in FIG. 2A.

Referring to FIGS. 1, 2A and 2B, the mobile terminal 200 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, and a swing type in which two or more bodies are coupled to be movable relative to each other. Further, the mobile terminal described herein may be any portable electronic device having a camera and flash, for example, a mobile phone, a smart phone, a notebook computer, a digital broadcast terminal, a Personal Digital Assistants ), A PMO (Portable Multimedia Player), and the like.

The terminal body includes a case (which may be referred to as a casing, a housing, a cover, and the like) that forms an appearance. The case may be divided into a front case 201, a rear case 202 covering a surface opposite to the front case, and a battery cover 203 coupled to the rear case 202.

Various electronic components are embedded in the space formed between the front case 201 and the rear case 202. 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 front surface of the terminal body includes a display unit 210, a first sound output unit 211, a signal input unit 217 and a front camera unit 216.

The display unit 210 includes an LCD (Liquid Crystal Display) module, an OLED (Organic Light Emitting Diodes) module, and an e-paper for visually expressing information. The display unit 210 may include touch sensing means for inputting data by a touch method. Hereinafter, the display unit 210 including the touch sensing unit will be referred to as a 'touch screen'. If any one of the touches on the touch screen 210 is touched, the contents corresponding to the touched position are input. The content input by the touch method may be a letter or a number, an instruction in various modes, a menu item which can be designated, and the like. The touch sensing means is formed in a translucent manner so that the display portion can be seen, and a structure for enhancing the visibility of the touch screen in a bright place may be included. 2A, the touch screen 210 occupies most of the front surface of the front case 201. [

The first sound output unit 211 may be implemented as a receiver for delivering a call sound to a user's ear or a loud speaker for outputting various alarm sounds or multimedia playback sounds.

The front camera unit 216 processes an image frame such as a still image or a moving image 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 210. [

The image frame processed by the front camera 216 can be stored in the memory 160 or transmitted to the outside through the wireless communication unit 110. [ The front camera 216 may be provided in two or more depending on the use environment.

The signal input unit 217 is operated to receive a command for controlling the operation of the mobile terminal 200 and may include a plurality of input keys. The input keys may also be referred to as a manipulating portion and may be employed in any manner as long as the user has a tactile sense and operates in a tactile manner. For example, a dome switch or touch screen capable of receiving a command or information by a push or touch operation of a user, a touch pad, or a wheel, a jog type or a joystick for rotating a key . The contents input by the signal input unit 230 can be variously set. For example, to enter start, end, scroll, and the like.

The signal input unit 217 according to the embodiment of the present invention includes an input key 300 that is coupled to the dome switch and inputs a signal by pressing.

Side keys 214, an interface unit 215, a sound input unit 213, and the like are disposed on side surfaces of the front case 201.

The side key 214 may be collectively referred to as an operation unit, and a command for controlling the operation of the mobile terminal 200 may be input. The side key 214 may be employed in any manner as long as the user is operating in a tactile manner with a tactile impression. Content input by the side key 214 may be variously set. For example, by the side key 214, it is possible to control the image input units 216 and 221, adjust the size of the sound output from the sound output unit 211, or switch the display unit 210 to the touch recognition mode Command can be input.

The sound input unit 213 may be implemented, for example, in the form of a microphone to receive a user's voice, other sounds, and the like.

The interface unit 215 is a channel through which the mobile terminal 200 related to the present invention can exchange data with an external device. For example, the interface unit 215 may be a wired or wireless connection terminal for connecting to an earphone, a port for short-range communication (for example, an IrDA port, a Bluetooth port, a wireless LAN port A wireless LAN port) or the like, or power supply terminals for supplying power to the mobile terminal 200. The interface unit 215 may be implemented in the form of a socket for receiving an external card such as a subscriber identification module (SIM) or a user identity module (UIM), a memory card for storing information.

A power supply unit 240 and a rear camera unit 221 are disposed on the rear surface of the terminal body.

A flash 223 is disposed adjacent to the rear camera unit 221. The flash 223 may be disposed adjacent to the rear camera unit 221. The flash 223 illuminates the subject toward the subject when the subject is photographed by the rear camera unit 221.

The mirror 224 may be disposed adjacent to the flash 223. The mirror allows the user to illuminate the user's own face or the like in the case where the user intends to photograph (self-photograph) himself / herself by using the rear camera unit 221. [

The rear camera unit 221 may have a photographing direction substantially opposite to that of the front camera unit 216 disposed on the front side and may be a camera having different pixels from the front camera unit 216. [

For example, the front camera unit 216 has low pixels so that it is easy to capture a face of a user in the case of a video call or the like and transmit the face to the other party. The rear camera unit 221 photographs a general subject and immediately transmits It is preferable to have a high pixel. The front and rear camera units 216 and 230 may be installed in the terminal body in a rotatable or pop-up manner.

The battery 240 supplies power to the mobile terminal 200. The battery 240 may be built in the terminal body or may be directly detachable from the outside of the terminal body.

3 is an exploded view of the mobile terminal of FIG. 2A.

2A and 3, the mobile terminal includes a window 210a and a display panel 210b coupled to one surface of the front case 202, the front case 201, and the rear case 202. The frame 204 is coupled to the main circuit board 283. A second flexible printed circuit board 282 connected to the signal input unit 217, a first flexible printed circuit board 281 connected to the display panel 210b, and a battery 240 mounted on the rear case 202. Include.

In addition, the mobile terminal according to the embodiment of the present invention includes a support member 205, a speaker 400 disposed on the support member 205, and a guide part 206 formed to surround the speaker.

The main circuit board 283 is mounted under the support member 205. At least one electronic device is mounted on the bottom surface of the main circuit board 283.

The display panel 210b is disposed on the support member 205. The first flexible printed circuit board 281 is electrically connected to the display panel 210b and coupled to the main circuit board 283 to transmit and receive a signal.

The second flexible circuit board 282 is disposed under the signal input unit 217. The second flexible circuit board 282 is formed such that a signal is input by touch or pressurization of the signal input unit 217.

The dome switch 303 is formed in an area overlapping the input key 300 of the second flexible circuit board 282. That is, the dome switch 303 is switched by pressing the input key 300.

The hole 302 is formed in one region of the window 210a. The input key 300 is disposed in the hole 302. That is, the input key 300 is arranged to be movable through the hole 302. According to the present invention, a predetermined gap may be formed between the hole 302 and the input key 300.

The speaker 400 is disposed on the support member 205. The speaker 400 is formed to emit sound toward the front of the terminal body.

Therefore, a separate sound output hole, etc. formed in the exterior of the mobile terminal is unnecessary to emit the sound. In addition, sound is emitted to the front of the mobile terminal. Since it is formed in an area adjacent to the input key 300, the sound emitting area is less likely to be covered by the user's hand.

Therefore, the appearance of the mobile terminal is simple, and a separate manufacturing process for forming a hole is omitted, so the process is simple. In addition, the use of the mobile terminal of the user becomes more free, and the sound output quality can be improved.

The guide part 206 protrudes from the support member 205 to surround the speaker 400. The guide part 206 may be formed to form a loop. The guide part 206 may be formed to contact the window 210a.

That is, the guide unit 206 guides the sound emitted from the speaker 400 to be transmitted to a gap formed between the hole 302 and the input key 300. The guide unit 206 may block the transmission of sound to the outside of the loop form. In addition, the cross section surrounded by the guide part 206 may be formed to be substantially larger than the hole 302, and the dome switch 303 may be formed in the guide part 206.

Therefore, the sound is not transmitted to the inside of the mobile terminal by the guide unit 206 and thus can be emitted into the gap, thereby improving the sound output quality.

Hereinafter, the arrangement relationship between the hole 302, the input key 300, and the speaker 400 will be described in detail.

4 is a cross-sectional view of the mobile terminal of FIG. 3 taken along line A-A according to one embodiment. FIG. 5 is a plan view of FIG. 4 viewed in the B direction.

3 to 5, the input key 300 is stored in a hole 302 formed in the window 210a. The width of the cross section of the input key 300 may be substantially smaller than the width of the cross section of the hole 302. However, for the beauty of the exterior of the mobile terminal, the cross section of the hole 302 may be formed in a shape corresponding to the cross section of the input key 300.

4 and 5, the fixing member 320 may be fitted into a portion of the gap formed between the window 210a and the input key 300. The fixing member 320 may be formed of a rubber material including elasticity. The fixing member 320 may stably receive the input key 300 in the hole 302 and may not shake when the input key 300 is pressed.

However, the fixing member 320 is formed only in a part of the gap so that the sound can be emitted. The position at which the fixing member 320 is formed is not limited to that shown in the drawing. The fixing member 320 may be formed to be exposed to the outside of the mobile terminal to be decorated.

The dome switch 313, the second flexible printed circuit board 282, and the speaker 400 supported by the support member 205 are disposed below the window 210a.

According to the exemplary embodiment of the present invention, the dome switch 313 and the speaker 400 are disposed adjacent to each other. That is, the dome switch 313 and the switch 300 are arranged side by side without overlapping. The display panel 210b is disposed on the support member 205.

The dome switch 313 is formed on the second flexible circuit board 282, and when the input key 300 is pressed, a signal is input.

The speaker 400 is arranged to emit sound toward the hole 302. That is, the sound is emitted in a direction facing the window 210a. A support 310 may be formed between the window 210a and the speaker 400. The support 310 may be formed of a rubber material including elasticity.

The support part 310 supports the speaker 400 to be stably seated. In addition, the support part 310 forms a space in which sound can move between the window 210a and the speaker 400. The support 310 may be formed in plurality. However, it is formed so as not to block the space that can be transferred toward the hole 302.

The sound emitted from the speaker 400 is transmitted to the internal space and is emitted to the outside through the hole 302. Therefore, since a separate sound output hole is unnecessary, the appearance of the mobile terminal is simple, and since the sound is emitted to an area adjacent to the input key 300, the sound is less likely to be cut off by the user.

The mobile terminal includes a guide portion 206 formed to contact the window 210a from the support member 205 so as to surround the speaker 400. The guide unit 206 guides the sound to be discharged into the hole 302, and blocks transmission to the inside of the terminal body.

The guide part 206 may be formed to form the closed curve. The hole 302 is disposed inside the closed curve.

Unlike the drawing, the guide part 206 facing the side of the mobile terminal may be omitted. In this case, a space inside the terminal body may be secured.

Although not shown in the drawings, a filter unit (not shown) may be formed in at least one region of the gap to prevent the inflow of foreign substances. The filter unit may block dust or the like without blocking movement of sound.

Sound is emitted into a gap formed between the input key 300 and the window 210a, thereby improving the beauty of the appearance. According to the exemplary embodiment of the present invention, the input key 300 is stably fixed to the hole 302, and the speaker 400 is stably fixed to secure a movement path of sound. In addition, the sound output quality can be improved by preventing the sound from leaking to the outside.

6 is a cross-sectional view of the mobile terminal of FIG. 3 taken along line A-A according to another embodiment.

3 and 6, the input key 300 and the speaker 400 may be disposed to overlap each other. A component similar to that of the mobile terminal of FIG. 4 may be included except for an arrangement relationship between the input key 300 and the speaker 400. Accordingly, like reference numerals refer to like elements, and overlapping descriptions are omitted.

The second flexible printed circuit board 282 and the dome switch 313 are formed on the speaker 400. That is, the dome switch 313 may be supported by the housing of the speaker 400. However, the speaker 400 is formed to partially overlap with the area where the sound of the speaker 400 is emitted.

According to the embodiment of the present invention, an internal space can be secured. In addition, the movement path of the sound emitted from the speaker 400 to the hole 302 is shortened to reduce the sound lost.

The mobile terminal described above can be applied to not only the configuration and method of the embodiments described above but also all or some of the embodiments may be selectively combined so that various modifications may be made to the embodiments It is possible.

Claims (9)

A window constituting one surface of the terminal body and including a hole;
An input key accommodated in the hole and at least partially exposed to the outside and disposed to form a gap with the window;
A speaker disposed below the window and emitting sound into the gap; And
And a support member disposed inside the main body of the terminal and configured to support the signal input unit and the speaker. The mobile terminal of claim 1, further comprising a guide part protruding from the support member to surround the speaker so as to guide the sound into the gap. The mobile terminal of claim 2, wherein one end of the guide portion is formed to contact the window to block the sound. The mobile terminal of claim 1, wherein the speaker is disposed under the signal input unit to support the input key. The method of claim 2,
A dome switch disposed under the input key and receiving a signal by pressing; And
And a circuit board in contact with the dome switch and transmitting and receiving the signal, wherein at least a portion of the circuit board overlaps the speaker. The method of claim 1,
The dome switch and the circuit board disposed below the input key are formed on the support member,
The speaker is formed on the support member, characterized in that the mobile terminal is disposed adjacent to the dome switch. The method according to claim 6,
The mobile terminal, characterized in that the support is formed on at least one surface of the speaker facing the window in order to secure the space between the speaker and the window. The mobile terminal of claim 1, wherein a filter part is formed in at least a part of the gap to prevent foreign substances from entering the inside of the terminal body. The mobile terminal of claim 1, wherein a fixing member is formed in one region of the gap to support the input key to be movable.

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