KR20140021928A - Mobile terminal - Google Patents

Abstract

The present invention provides a case having a mounting portion recessed from one surface, a display accommodated in the case and configured to output visual information, a window disposed to cover the display and mounted on the mounting portion, to support the display. A support part formed in the support part, an isolation part coupled to the case and at least a part of the support part spaced apart from the support part at a predetermined interval, and mounted to the isolation part to generate vibration, and generating sound using the vibration. Or it provides a mobile terminal comprising a sound output device configured to transmit the vibration through the window.

Description

[0001] MOBILE TERMINAL [0002]

The present invention relates to a mobile terminal having a bone conduction sound output device.

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 storage function.

As the functions are diversified, 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, playing a game, and receiving a broadcast.

In order to support and increase the function of such a mobile terminal, it may be considered to improve the structural part and / or the software part of the mobile terminal.

As an improvement of the structural part of the mobile terminal, a bone conduction sound output device for transmitting sound using vibration may be applied to the mobile terminal. The sound output device is an electronic device capable of hearing by generating a tremor of air to deliver sound, or by stimulating the user's auditory nerve to transmit sound. As such, since the sound output device transmits sound using vibration, a structure capable of transmitting vibration more efficiently may be considered.

The present invention provides a structure in which a mobile terminal having a sound output device for transmitting sound using vibrations can efficiently transmit vibrations generated from the sound output device.

In addition, the present invention is to propose a structure that can implement a simpler mobile terminal using the sound output device.

A mobile terminal according to an embodiment of the present invention for realizing the above object includes a case having a mounting portion recessed from one surface, a display accommodated in the case and configured to output visual information, and covering the display. A window mounted to the mounting unit, a support unit configured to support the display, an isolation unit coupled to the case and at least one portion spaced apart from the support unit at a predetermined interval, and mounted in the isolation unit. And a sound output device configured to generate vibration and to generate sound using the vibration or to transmit the vibration through the window.

According to an example related to the present invention, the transmission of the vibration to the support is limited by the spaced arrangement between the support and the isolation.

According to another example related to the present invention, a pad is disposed between the display and the support to reduce shock transmission between the display and the support and to separate the display from the isolation part.

According to another example related to the present invention, the isolation unit is mounted on the other surface of the case, and the vibration generated from the sound output device is transmitted to the window via the isolation unit and the case.

According to another embodiment related to the present invention, the support part and the isolation part are formed by partitioning a frame coupled to the case so as to cover the rear surface of the display by a slit.

The slit may be formed to surround at least a portion of the sound output device.

In addition, the isolation unit may be formed in a cantilever shape that is elastically deformable by the slit so that the sound output device forms a free vibration level.

According to another example related to the present invention, the support part and the isolation part may be different members.

According to another example related to the present invention, the isolation part may be integrally formed with the case.

According to another example related to the present invention, a hole or a groove may not be formed in the window.

According to another example related to the present invention, the case is provided with a locking groove recessed in the mounting portion, the isolation portion is provided with a hook hook is formed at least a portion bent to be mounted to the locking groove.

The locking grooves may be formed on adjacent surfaces forming corners of the mounting portion, and the isolation part may be mounted to the case by the locking hooks being caught by the locking grooves.

In addition, the support portion may be coupled to the other surface of the case and spaced apart from the isolation portion at a predetermined interval.

The vibration generated by the sound output device may be transmitted to the window via the isolation unit.

According to another embodiment related to the present invention, the window includes a central area corresponding to the display and made of light transmissive to transmit the visual information, and an edge area formed to surround the central area and opaquely processed. At least a portion of the sound output element overlaps the edge region in the thickness direction of the window.

According to another example related to the present invention, the sound output device is disposed to overlap the display in the thickness direction of the window.

According to another embodiment related to the present invention, the mobile terminal further includes a housing coupled to the case and disposed to cover the sound output device, wherein the discharge hole discharges ambient air of the sound output device. Is formed.

A first damping pad may be disposed between the sound output device and the housing to reduce vibrations transmitted from the sound output device. In addition, a battery cover covering a battery may be detachably coupled to the housing, and a second damping pad may be disposed between the housing and the battery cover to reduce vibrations transmitted from the sound output device.

In addition, in order to realize the above object, the present invention is a frame having a receiving portion and a seating portion recessed at different depths on one surface, a display accommodated in the receiving portion, and disposed to cover the display and the seating A window mounted to the unit, an acoustic output element mounted on a rear surface of the accommodating unit, and configured to transmit sound using bone conduction vibration, a pad disposed between the accommodating unit and the display, and the acoustic output element. It provides a mobile terminal comprising a slit formed between the portion in which the sound output element is mounted and the portion in which the pad is disposed in the receiving portion to limit the vibration to be transmitted to the display.

In the mobile terminal according to the present invention configured as described above, as the bone conduction-type sound output device is mounted in an isolation part in which at least one portion is spaced apart from the support part configured to support the display, Implement a mechanism in which vibrations are efficiently transmitted to the front of the terminal body. In detail, the transmission path of vibration may be reduced, so that the loss of vibration may be reduced, and the echo phenomenon caused by the separation of the transmission path may be reduced.

In addition, since the mobile terminal according to the present invention is configured to transmit sound using vibration generated from the sound output device, a hole or a groove for emitting sound is unnecessary on the front surface of the terminal body including a window. The front side of can be implemented.

In addition, according to the present invention, as the isolation portion is configured to be elastically deformable, the performance of the sound output element can be adjusted independently of the support portion, and the sound output element can operate similarly to the free vibration level. Since the discharge hole and the through hole are formed in the housing and the battery cover, respectively, the air resonating around the sound output device is discharged, so that the echo phenomenon can be reduced.

1 is a perspective view of an example of a mobile terminal according to the present invention.
FIG. 2 is a rear perspective view of the mobile terminal shown in FIG. 1. FIG.
3 is an exploded perspective view of the mobile terminal of FIG.
4 is a cross-sectional view taken along the line IV-IV shown in FIG.
5A and 5B are conceptual views illustrating modifications to the mounting structure of the audio output device.
6 is a cross-sectional view of a mobile terminal according to another embodiment of the present invention.
7 is a conceptual diagram illustrating a modification of the mounting structure of the sound output device shown in FIG.
8 is a cross-sectional view of a mobile terminal according to another embodiment of the present invention.

Hereinafter, a mobile terminal according 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. In addition, the suffixes "module", "unit" and "unit" for the components used in the following description are given or used in consideration of ease of specification, and have meanings or roles that are distinct from each other. It is not.

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 may be included.

However, it will be readily apparent to those skilled in the art that the configuration according to the embodiments described herein may also be applied to fixed terminals such as digital TVs, desktop computers, etc., except when applicable only to mobile terminals.

1 is a front perspective view of an example of a mobile terminal 100 according to the present invention, Figure 2 is a rear perspective view of the mobile terminal 100 shown in FIG.

1 and 2, the disclosed mobile terminal 100 has a terminal body in the form of a bar. 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 terminal body includes a case (frame, housing, cover, etc.) forming 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 injecting synthetic resin, or may be formed of a metal material such as stainless steel (STS), aluminum (Al), magnesium (Mg), titanium (Ti), or the like.

The terminal body may include a display unit 150, an audio output module 160, a camera 121, and a user input unit 130/131, 132.

The display unit 150 is disposed to occupy most of the main surface of the front case 101. Therefore, the bezel that appears in front of the front case is very narrow. The sound output module 160 and the camera 121 are disposed in regions adjacent to one end of both ends of the display unit 150.

The display unit 150 may display various types of visual information. These pieces of information can be displayed in the form of letters, numbers, symbols, graphics, or icons. At least one of the letters, numbers, symbols, graphics, or icons may be displayed in a predetermined arrangement for inputting such information, thereby being implemented as a keypad. Such a keypad may be called a so-called " soft key ".

The display unit 150 may operate in an entire area or may be divided into a plurality of areas. In the latter case, the plurality of areas can be configured to operate in association with each other.

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

The contents input by the first and second manipulation units 131 and 132 may be variously set. For example, the first operation unit 131 receives a command such as start, end, scroll, and the like, and is disposed in an area adjacent to an end of the display unit 150 that is different from an end at which the sound output module 160 is disposed. do.

The second manipulation unit 132 is configured to receive a command such as adjusting the volume of the sound output from the sound output module 160 or switching to the touch recognition mode of the display unit 150.

Referring to FIG. 2, a camera 121 'may be further mounted on the rear surface of the terminal body, that is, the rear case 102. The camera 121 ′ has a photographing direction substantially opposite to the camera 121 (see FIG. 1), 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 such that they can be rotated or pop-up.

The flash 123 and the 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 illuminate the user's own face or the like when the user intends to shoot himself / herself (self-photographing) using the camera 121 '.

The sound output module 160 ′ may be additionally disposed at the rear of the terminal body. The sound output module 160 ′ may be used to implement the speakerphone mode during a call.

An antenna for receiving a broadcast signal may be additionally disposed on the side of the terminal body in addition to the antenna 110 (see FIG. 3) for a call. An antenna constituting a part of the broadcast receiving module may be installed to be able to be drawn out from the terminal body.

The terminal body may be provided with a microphone 122, an interface 170, and the like. The microphone 122 is disposed in an area adjacent to one end of the display unit 150 and the other end of the audio output module 160. Side of the front case 101 or the rear case 102 is configured as an example of the interface 170, it may be provided with a connection port 171 that can be connected to an external device. The connection port 171 exchanges data with an external device or receives power and transmits the data to each component inside the mobile terminal 100. The connection port 171 may be, for example, a wired / wireless headset port and a wired / wireless data port.

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 directly detachable from the outside of the terminal body.

The front of the terminal body is not formed with holes or grooves for emitting sound. That is, the sound output module 160 transmits sound from the inside of the terminal body to the front of the terminal body, but is not exposed to the outside. Through this, a new type of design in which a hole or a groove is not formed in the display unit 150 or the bezel forming the front surface of the terminal body is possible. The present invention discloses a mechanism for implementing such structural features, which is described in more detail below.

3 is an exploded perspective view of the mobile terminal 100 of FIG. 1, and FIG. 4 is a cross-sectional view taken along the line IV-IV shown in FIG. 1.

Referring to FIG. 3, a circuit board 180 is disposed inside the terminal body. The circuit board 180 may be mounted to the rear case 102 as shown or may be installed in a separate internal structure. The circuit board 180 may be configured as an example of a control unit for operating various functions of the mobile terminal 100. Various electronic devices may be mounted on the circuit board 180 or electrically connected to the circuit board 180 through the flexible circuit board 181 like the acoustic output device 161.

A display unit 150 (refer to FIG. 1) for displaying information processed by the mobile terminal 100 is disposed in front of the terminal body. The display unit 150 may be arranged to occupy most of the front surface of the terminal body. The display unit 150 includes a display 151 and a window 152 covering the display 151.

The mobile terminal 100 has a case accommodating the display 151. In this embodiment, it is shown that the case is formed of the front case 101 forming the appearance of the terminal body. Unlike the figure, the case may be formed of a separate internal structure different from the front case 101.

The front case 101 is provided with a mounting portion 101a recessed from one surface. The mounting portion 101a may be formed to support the window 152 and may have a loop shape corresponding to the edge portion of the window 152. A hole 101c may be formed in the mounting portion 101a to guide light emitted from the light source 131a mounted on the circuit board 180.

The window 152 is mounted to the mounting portion 101a. The window 152 may be formed of a material through which light can pass, for example, a light transmissive synthetic resin, tempered glass, or the like. The window 152 may be formed to include a portion through which light cannot pass.

The window 152 is partitioned into an opaque edge region S and a central region C surrounded by the edge region S. The edge area S may be seated and supported by the mounting portion 101a, and the center area C may have an area corresponding to the display 151. Accordingly, the user can recognize the time information output from the display 151 from the outside.

In addition, as described above, since the mobile terminal 100 according to the present invention is configured to transmit sound using vibration generated from the sound output device 161, a hole or a groove for emitting sound to the window 152. It is not formed. Thus, a simpler front surface of the terminal body can be implemented.

The window 152 may be firmly fixed to the mounting portion 101a through an adhesive film (not shown). The adhesive film is sealed to prevent foreign matter from penetrating between the display 151 and the window 152 and may have a loop shape corresponding to the mounting portion 101a.

The display 151 is disposed on the rear surface of the window 152 and is accommodated in the front case 101 to form the display unit 150 together with the window 152. The display 151 is electrically connected to the circuit board 180 and is configured to output time information under the control of the control unit. The display 151 may have an area corresponding to a portion of the window 152 through which light is transmitted.

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

The display unit 150 may further include a touch sensor (not shown) to form a touch screen. The touch sensor is disposed between the window 152 and the display 151 to sense a touch input to the window 152.

The touch sensor is configured to convert a change in voltage, amount of charge, etc. generated in a specific portion of the window 152 into an electrical input signal. The touch sensor is transmissive so that the image formed on the display 151 can transmit therethrough. An area corresponding to a portion of the touch sensor through which the light passes through the window 152 forms an input area.

The touch sensor may include a conductive pattern patterned by a method in which a conductive material is deposited and printed on the window 152 itself or a separate film. As the conductive material, ITO (Indium Tin Oxide), CNT (Carbon Nano Tube), conductive polymer, In2O3, SnO2, Au and the like can be used.

The touch sensor may be formed in a film form and attached to the rear surface of the window 152. In this case, an adhesive layer may be disposed between the window 152 and the touch sensor. As the adhesive layer, OCA (Optical Clear Adhesive), SVR (Super View Resin), or the like may be used.

As such, the display 151 and the window 152 may be configured as the display unit 150 and may be modularized into one assembly. In particular, when the touch sensor is provided, the display unit 150 operates as a touch screen.

The front case 101 may include a hollow portion 101b corresponding to the display 151, and a frame 104 may be disposed on the rear surface of the display 151 so as to cover the hollow portion 101b. The frame 104 may be formed of a metal sheet such as stainless steel or magnesium, and may be fixed to the front case 101 by using a screw, an adhesive sheet, or the like.

The frame 104 includes a support 104a and an isolation 104b.

The support 104a is made to support the display 151. The support part 104a may be formed to cover most of the rear surface of the display 151. A pad 105 may be disposed between the support 104a and the display 151 to reduce the shock transmitted between them. In this figure, the pad 105 is formed in the form of a loop.

The isolation part 104b is disposed such that at least one portion is spaced apart from the support part 104a at a predetermined interval. In this figure, the frame 104 is divided into the support part 104a and the isolation part 104b by the slit 104c. The isolation unit 104b may be disposed to be spaced apart from the display 151 by the pad 105 described above.

The sound output device 161 is mounted to the isolation unit 104b, and the sound output device 161 is electrically connected to the circuit board 180 to generate vibration under the control of the controller. The sound output element 161 is configured to generate sound through the vibration of the air due to the vibration, or to transmit the sound in a bone conduction manner. The sound output element 161 may be, for example, a bone conduction speaker, a bone conduction receiver, or the like.

Bone conduction speakers or bone conduction receivers refer to the transmission of sound in a bone conduction manner. Bone conduction includes a bone conduction oscillator, which is a transducer that converts an electrical signal into a vibration signal, and utilizes a phenomenon in which sound is transmitted to the skull and transmitted directly to the inner ear without passing through the eardrum. It is a concept that corresponds to air conduction, in which sound in the air reaches the inner ear through the ear canal, the eardrum, and the scavenging bones. A bone conduction transducer is attached to a bone conduction speaker or a bone conduction receiver, and the bone conduction oscillator acts as a vibrating speaker that transmits sound by converting an electrical signal into a vibration signal.

Referring to the drawings, the sound output device 161 is configured to transmit the vibration generated by being mounted to the isolation unit 104b to the window 152. Since the isolation part 104b is coupled to the front case 101, and the window 152 is mounted to the mounting part 101a of the front case 101, the vibration passes through the isolation part 104b and the front case 101. It is delivered to the window 152, and the user can hear the sound through the vibration as the head contacts the window 152 during the call.

In this case, the isolation part 104b is spaced apart from the support part 104a by the slit 104c and spaced apart from the display 151 by the pad 105 disposed between the support part 104a and the display 151. Vibration transmission to 104a and display 151 is limited. Therefore, the transmission path of vibration can be reduced, so that the loss of vibration can be reduced, and the echo phenomenon caused by the separation of the transmission path can be reduced. That is, in the mobile terminal 100 having the bone conduction type sound output element 161, a more efficient sound output mechanism may be implemented.

Referring to FIG. 3, the isolation part 104b may be formed in a cantilever shape that is elastically deformable by the slit 104c, and the acoustic output element 161 may be mounted on the isolation part 104b to be similar to the free vibration level. Can be acted upon. In addition, the isolation unit 104b may be disposed adjacent to an end of the terminal body to ensure mounting of the audio output device 161 and to transmit vibration in a shorter path toward the window 152.

3 and 4, at least a part of the sound output device 161 may be disposed to overlap the edge region S in the thickness direction of the window 152. According to the above structure, the sound output element 161 is disposed closer to the mounting portion 101a, so that the vibration can be more efficiently transmitted to the window 152 mounted to the mounting portion 101a.

In addition, at least a portion of the sound output device 161 may be disposed to overlap the display 151 in the thickness direction of the window 152. According to the above structure, the bezel may be narrower than the case where the sound output device 161 is disposed on the side of the display 151.

The circuit board 180 is formed with a cutout 180a in which the sound output device 161 is disposed. More specifically, the circuit board 180 is formed to be cut from one side, and a cutout 180a penetrating the circuit board 180 is formed, and the sound output device 161 is disposed at the cutout 180a. According to this configuration, the sound output device 161 may be disposed to penetrate the circuit board 180, thereby allowing a more compact component layout. Furthermore, the mountability of the sound output device 161 can be ensured, and since it is disposed adjacent to one end of the terminal, vibration can be transmitted in a shorter path toward the user's head during use.

The rear case 102 is coupled to the front case 101 and disposed to cover the sound output element 161. The rear case 102 may have a discharge hole 102a for discharging the surrounding air of the sound output device 161. The discharge hole 102a may be formed at a portion of the rear case 102 facing or adjacent to the sound output device 161. Through this, the ringing phenomenon occurring at the rear surface of the sound output device 161 may be alleviated or eliminated.

In addition, a through hole 103a may be formed in the cover 103 of the battery 191 to correspond to the discharge hole 102a. The through hole 103a may be formed as a single hole formed separately from or integrated with the sound discharge hole of the sound output module 160 'provided at the rear of the terminal body. Figure 2 shows a hole of the integrated form. In addition, the discharge hole 102a and / or the through hole 103a may be equipped with a filter for preventing the inflow of foreign matter.

The sound output element 161 is disposed to face the rear case 102 in a state of being mounted on the rear surface of the isolation unit 104b, and is disposed between the sound output element 161 and the rear case 102 as a rear case 102. The first damping pad 106 may be installed to reduce the transmitted vibration. The first damping pad 106 may be formed to surround the discharge hole 102a and may be formed of a sponge, silicon, rubber, or the like capable of elastic deformation.

The rear case 102 is formed with a battery accommodating part 190 in which the battery 191 is accommodated. The bottom surface of the battery accommodating part 190 on which the battery 191 is seated may be implemented by the frame 104. The battery 191 may be built in the battery accommodating part 190 or may be detachably configured.

The rear case 102 is detachably mounted to the battery 191 cover 103 covering the battery 191. As described above, the through hole 103a corresponding to the discharge hole 102a may be formed in the cover 103 of the battery 191. A second damping pad 107 may be disposed between the rear case 102 and the cover 103 of the battery 191 to reduce vibrations transmitted from the sound output device 161. The second damping pad 107 may be formed to surround the through hole 103a and may be formed of a material that is elastically deformable.

Hereinafter, modifications of the above structure and other embodiments of the present invention will be described. In the following description, the same or similar reference numerals are assigned to the same or similar configurations as the foregoing embodiments, and the description is replaced with the first description.

5A and 5B are conceptual views illustrating modified examples of mounting structures of the acoustic output devices 261 and 361, and the front cases 201 and 301 are viewed from the rear.

Referring to FIG. 5A, the support 204a and the isolation 204b may be different members. The isolation unit 204b may be fixed to the rear end of the front case 201 using a screw 241, an adhesive sheet, or the like. At this time, the part to which the screw 241 is fastened becomes a fixed end, and the part which is not supported by the front case 201 and puts in the internal space becomes a free end. The acoustic output element 261 is installed at the free end to form a free vibration level.

The support part 204a is comprised by a separate member, and is spaced apart from the isolation part 204b at regular intervals. The support part 204a may be fixed to the front case 201 using a screw 242, an adhesive sheet, and the like along the rear edge of the front case 201 except for the portion where the isolation part 204b is disposed. The support part 204a may be formed to surround at least a portion of the sound output element 261.

The support part 204a and the isolation part 204b may be formed in a thin sheet form and may be formed by injecting synthetic resin, or may be formed of a metal material such as stainless steel (STS) or magnesium (Mg). The support part 204a and the isolation part 204b may be formed of the same material or different materials.

According to the above structure, the vibration generated in the acoustic output element 261 is transmitted to the support part 204a and the display 251 as compared with the previous structure in which the support part 204a and the isolation part 204b are partitioned by the slit 204c. It may be less transmitted, and may be more concentrated in a path in which the vibration is transmitted to the window 252 via the front case 201.

Referring to FIG. 5B, the support part 304a is disposed to cover the rear surface of the front case 301. The isolation portion 304b may be formed in one region in the support portion 304a. In detail, a loop-shaped slit 304c is formed at a portion of the frame 304 adjacent to the end of the front case 301 to form an isolation portion 304b therein, and an acoustic output element at the isolation portion 304b. 361) is installed.

The support portion 304a and the isolation portion 304b may be connected by the bridge portion 304d. The bridge portion 304d is thinly formed so as to be elastically deformable, so that the isolation portion 304b is independently elastically capable while being fixed to the support portion 304a. Thus, the sound output element 361 installed in the isolation unit 304b can operate similarly to the free vibration level. In this case, the slit 304c is configured to limit the transmission of the vibration generated from the sound output element 361 to the support 304a and the display 351.

5A and 5B can be selectively applied to the mounting structure of the sound output elements 461, 561, and 661 to be described later.

6 is a cross-sectional view of a mobile terminal 400 according to another embodiment of the present invention.

Referring to FIG. 6, a locking groove 401a ′ is formed on an upper surface of the mounting portion 401a. The locking groove 401a 'may be formed at a portion adjacent to the display 451 in the mounting portion 401a. At least one hook portion 404b 'is formed in the isolation portion 404b so that the hook portion 404b' is formed to be mounted in the hook groove 401a '. The locking hook 404b 'may be more firmly fixed to the locking groove 401a' through the adhesive member.

The hook hook 404b 'may be configured to support the window 452 together with the mounting portion 401a. According to the above structure, the vibration generated from the sound output element 461 is directly transmitted to the window 452 via the isolation unit 404b. That is, since it does not go through the front case 401, the loss of the vibration can be further reduced.

FIG. 7 is a conceptual diagram illustrating a modification of the mounting structure of the sound output device 461 illustrated in FIG. 6.

Referring to FIG. 7, the locking grooves 501a 'are formed on adjacent surfaces forming the corners of the mounting portion 501a, respectively. The isolation part 504b is mounted to the front case 501 by the locking hook 504b 'being caught by the locking groove 501a'. In this figure, it is shown that the isolation unit 504b is installed at one side edge of the terminal body. The isolation unit 504b is disposed to cover a part of the corner of the display 551, but is spaced apart from each other at a predetermined interval so as not to be in direct contact.

The support part 504a is formed as a separate member from the isolation part 504b, is coupled to the front case 501, and is disposed to be spaced apart from the isolation part 504b to cover and cover the rest of the display 551. As described above, a pad 505 may be disposed between the display 551 and the support 504a to reduce shock transmission therebetween and be spaced apart from the isolation 504b. The support part 504a may be mounted on the rear surface of the front case 501 as shown, or may be fixed to the front case 501 in a groove / hook structure such as the isolation part 504b.

8 is a cross-sectional view of a mobile terminal 600 according to another embodiment of the present invention.

Referring to FIG. 8, the isolation part 604b may be integrally formed with the front case 601. That is, the front case 601 may include a seating portion 601a and a receiving portion 601b recessed at different depths from one surface. The display 651 is accommodated in the receiving portion 601b, and the window 652 is mounted to the seating portion 601a and disposed to cover the display 651.

An acoustic output element 661 is mounted on the rear surface of the accommodating part 601b and is configured to transmit sound using bone conduction vibration. A slit 604c is formed in the accommodating part 601b to partition the support part 604a for supporting the display 651 and the isolation part 604b in which the sound output element 661 is installed. The display 651 and the isolation part 604b may be spaced apart by a pad 605 disposed between the display 651 and the support part 604a.

According to the above structure, since the support part 604a and the isolation part 604b are formed by the front case 601 itself, a separate frame 604 is unnecessary. In addition, since vibration is transmitted directly to the window 652 via the front case 601, a more efficient vibration transmission mechanism can be implemented.

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 (20)

A case having a mounting portion recessed in one surface;
A display accommodated in the case and configured to output visual information;
A window disposed to cover the display and mounted to the mounting unit;
A support configured to support the display;
An isolation unit coupled to the case and at least a portion of which is spaced apart from the support at a predetermined interval; And
And a sound output device mounted on the isolation unit to generate vibration, and configured to generate sound by using the vibration or to transmit the vibration through the window. The method of claim 1,
Mobile terminal, characterized in that the transmission of the vibration to the support is limited by the spaced arrangement between the support and the isolation. The method of claim 1,
And a pad disposed between the display and the support to reduce shock transmission between the display and the support and to separate the display from the isolation part. The method of claim 1,
The isolation unit is mounted on the other side of the case,
The vibration generated by the sound output device is transmitted to the window via the isolation unit and the case. The method of claim 1,
The support unit and the isolation unit, characterized in that the frame coupled to the case is formed by the slit partitioned to cover the back of the display. The method of claim 5,
The slit is formed to surround at least a portion of the sound output element. The method of claim 5,
And the isolation part is formed in a cantilever shape that is elastically deformable by the slit so that the sound output element forms a free vibration level. The method of claim 1,
And the support and the isolator are different members. The method of claim 1,
The isolation unit is characterized in that it is formed integrally with the case. The method of claim 1,
A mobile terminal, characterized in that no hole or groove is formed in the window. The method of claim 1,
The case is formed with a locking groove that is recessed in the mounting portion,
The isolation unit has a mobile hook, characterized in that it has a hook hook formed to be bent at least a portion so as to be mounted in the locking groove. 12. The method of claim 11,
The locking grooves are formed on adjacent surfaces forming corners of the mounting portion, respectively.
The isolation unit is a mobile terminal, characterized in that the locking hook is mounted to the case by the locking groove. 12. The method of claim 11,
The support unit is coupled to the other surface of the case is a mobile terminal, characterized in that spaced apart from the isolation at a predetermined interval. 12. The method of claim 11,
The vibration generated by the sound output device is characterized in that the mobile terminal is transmitted to the window via the isolation. The method of claim 1,
In the above window,
A central area corresponding to the display and configured to be transmissive to transmit the visual information; And
It is formed to surround the central area, and comprises an edge area that is opaque,
And at least a portion of the sound output element overlaps the edge region in the thickness direction of the window. The method of claim 1,
The sound output device is a mobile terminal, characterized in that disposed in the thickness direction of the window overlapping the display. The method of claim 1,
And a housing coupled to the case and disposed to cover the sound output device.
The housing is characterized in that the discharge hole for discharging the surrounding air of the sound output element. 18. The method of claim 17,
And a first damping pad disposed between the sound output device and the housing to reduce vibrations transmitted from the sound output device. 19. The method of claim 18,
A battery cover covering the battery is detachably coupled to the housing,
And a second damping pad disposed between the housing and the battery cover to reduce vibrations transmitted from the sound output device. A frame having a receiving portion and a seating portion recessed at different depths on one surface;
A display accommodated in the accommodation portion;
A window disposed to cover the display and mounted to the seating part;
An acoustic output element mounted on a rear surface of the accommodation portion and configured to transmit sound using bone conduction vibration;
A pad disposed between the receiver and the display; And
And a slit formed between a portion in which the sound output element is mounted and a portion in which the pad is disposed in the accommodating part so as to restrict transmission of vibration generated from the sound output element to the display. .

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