KR101977079B1 - Mobile terminal - Google Patents

Abstract

The present invention provides a display device comprising a case having a mounting portion that is recessed in one face, 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, An isolator coupled to the case and having at least a portion spaced apart from the support by a predetermined distance; and a vibration isolator mounted on the isolator to generate vibration, Or an acoustic output element for transmitting the vibration through the window.

Description

[0001] MOBILE TERMINAL [0002]

The present invention relates to a mobile terminal having a bone conduction acoustic output element.

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 multiple functions such as photographing, video shooting, music or video file playback, game, and broadcast reception.

In order to support and enhance the functionality of such a mobile terminal, it may be considered to improve the structural and / or software aspects of the mobile terminal.

As an improvement of the structural part of the mobile terminal, a bone conduction acoustic output device that transmits sound using vibration can be applied to the mobile terminal. The sound output device is an electronic device that generates noise by shaking the air or transmits sound by stimulating the user's auditory nerve. As such, since the sound output element transmits sound using vibration, a structure capable of transmitting vibration more efficiently can be considered.

The present invention provides a structure capable of efficiently transmitting vibration generated from an acoustic output element in a mobile terminal having an acoustic output element for transmitting sound using vibration.

In addition, the present invention proposes a structure in which a simpler mobile terminal can be implemented 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 that is recessed on one surface thereof, a display accommodated in the case and configured to output time information, An inserting portion coupled to the case and having at least one portion spaced apart from the supporting portion at a predetermined interval, and a fixing portion mounted on the inserting portion, And an acoustic output element formed to generate vibration and adapted to generate sound using the vibration or transmit the vibration through the window.

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

According to another embodiment of the present invention, a pad is disposed between the display and the support for reducing impulse transmission between the display and the support and separating the display from the isolation.

According to another embodiment of the present invention, the isolation portion is mounted on the other surface of the case, and the vibration generated in the acoustic output element is transmitted to the window via the isolation portion and the case.

According to another embodiment of the present invention, the support portion and the isolation portion are formed by a slit, which is formed by a frame coupled to the case so as to cover the back surface of the display.

The slit may be formed to surround at least a part of the acoustic output element.

In addition, the isolator may be formed in a cantilever shape that is elastically deformable by the slit so that the acoustic output element forms a behavior of a free vibration level.

According to another embodiment of the present invention, the support portion and the isolation portion may be different members.

According to another embodiment of the present invention, the isolation portion may be formed integrally with the case.

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

According to another embodiment of the present invention, the case has a latching groove formed therein to be recessed in the mounting portion, and the separating portion has a latching hook formed so that at least a portion thereof is bent so as to be mounted in the latching groove.

The latching grooves may be formed on adjacent surfaces forming the corners of the mounting portion, and the latching hooks may be attached to the case by latching the latching hooks in the latching grooves.

The support portion may be disposed on the other surface of the case so as to be spaced apart from the isolation portion at regular intervals.

The vibration generated in the acoustic output element may be transmitted to the window via the isolation portion.

According to another embodiment of the present invention, the window includes a central region corresponding to the display and transparent to transmit the visual information, and an edge region formed to surround the central region and being opaque, At least a portion of the acoustic output element overlaps the edge region in the thickness direction of the window.

According to another embodiment of the present invention, the acoustic output element is arranged to overlap with the display in the thickness direction of the window.

According to another embodiment of the present invention, the mobile terminal further includes a housing coupled to the case and disposed to cover the sound output element, wherein the housing has a discharge hole for discharging ambient air of the sound output element, .

A first damping pad may be disposed between the acoustic output element and the housing to reduce vibrations transmitted from the acoustic output element. In addition, a battery cover covering the 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 element.

According to another aspect of the present invention, there is provided a display device including: a frame having a receiving portion and a receiving portion recessed at different depths from one surface; a display accommodated in the receiving portion; An acoustic output element mounted on a back surface of the receptacle and configured to transmit sound using bone conduction vibration; a pad disposed between the receptacle and the display; And a slit formed between the portion where the acoustic output element is mounted and the portion where the pad is disposed in the receiving portion so as to limit transmission of vibration to the display.

In the mobile terminal according to the present invention configured as described above, since a bone conduction acoustic output element is mounted on an isolation portion that is disposed at least a part apart from a support portion configured to support a display, Thereby realizing a mechanism in which vibration is efficiently transmitted to the front surface of the terminal body. Specifically, the transmission path of the vibration can be reduced, the loss of vibration can be reduced, and the echo phenomenon caused by the separation of the transmission path can be reduced.

In addition, since the mobile terminal related to the present invention transmits sound using the vibration generated from the sound output element, holes or grooves for emitting sound are not required on the entire surface of the terminal body including the window, Can be implemented.

In addition, according to the present invention, since the isolator is configured to be elastically deformable, the performance of the acoustic output element can be adjusted independently of the support, and the acoustic output element can operate similar to the free vibration level. Since exhaust holes and through holes are formed in the housing and the battery cover to exhaust the air resonated in the periphery of the acoustic output element, 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.
Fig. 4 is a cross-sectional view taken along line IV-IV shown in Fig. 1; Fig.
Figures 5A and 5B are conceptual diagrams illustrating variations on the mounting structure of the acoustic output element.
6 is a cross-sectional view of a mobile terminal according to another embodiment of the present invention.
FIG. 7 is a conceptual view showing a modification of the mounting structure of the acoustic output element shown in FIG. 6;
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. Furthermore, suffixes " module ", " unit ", and " part " for constituent elements used in the following description are to be given or mixed in consideration of ease of specification, 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 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.

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

Referring to FIGS. 1 and 2, the disclosed mobile terminal 100 includes a bar-shaped terminal body. However, the present invention is not limited thereto, and can be applied to various structures such as a slide type, a folder type, a swing type, and a swivel type in which two or more bodies are relatively movably coupled.

The terminal body includes a case (a frame, a housing, a cover, and the like) which forms an appearance. In this embodiment, the case may be divided into a front case 101 and a rear case 102. [ A variety of electronic components are embedded in the space formed between the front case 101 and the rear case 102. At least one intermediate case may be additionally disposed between the front case 101 and the rear case 102. [ The cases may be formed by injection molding of a synthetic resin or may be formed of a metal material such as stainless steel (STS), aluminum (Al), magnesium (Mg), titanium (Ti)

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

The display unit 150 is disposed to occupy most of the main surface of the front case 101. Therefore, the bezel exposed on the front of the front case is formed very narrowly. The sound output module 160 and the camera 121 are disposed in an area adjacent to one end of both ends of the display unit 150.

Various kinds of time information can be displayed on the display unit 150. 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 as an entire area or may be divided into a plurality of areas and operated. 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 operation units 131 and 132. The first and second operation units 131 and 132 may be collectively referred to as a manipulating portion and may be employed in any manner as long as the user operates in a tactile manner.

The contents input by the first and second operation units 131 and 132 can be variously set. For example, the first operation unit 131 receives commands such as start, end, scroll, and the like, and is disposed in an area adjacent to the other end of the display unit 150 at the ends where the acoustic output module 160 is disposed do.

The second operation unit 132 is configured to receive a command such as a size adjustment of the sound output from the sound output module 160 or a switch 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.

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

The sound output module 160 'may be further disposed on the rear surface of the terminal body. The sound output module 160 'may be used for the implementation of the speakerphone mode during a call.

In addition to the antenna 110 (see FIG. 3) for a call or the like, an antenna for receiving broadcast signals may be additionally disposed on the side of the terminal body. 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 include a microphone 122, an interface 170, and the like. A microphone 122 is disposed in an area adjacent to the one end of the display unit 150 where the acoustic output module 160 is disposed. A connection port 171 may be provided on the side surface of the front case 101 or the rear case 102 as an example of the interface 170 and may be connected to an external device. The connection port 171 exchanges data with an external device or receives power from the external device and transmits the data to each component in 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 detachable from the outside of the terminal body.

No holes or grooves are formed on the front surface of the terminal body for emitting sound. That is, the sound output module 160 transmits sound from the inside of the terminal body to the front surface of the terminal body, but is not exposed to the outside. Accordingly, it is possible to design a new type 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. The present invention discloses a mechanism for implementing such a structural feature, which will be described in more detail below.

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

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 may be electrically connected to the circuit board 180 through the flexible circuit board 181 like the acoustic output device 161.

A display unit 150 (see FIG. 1) for displaying information processed by the mobile terminal 100 is disposed on the front surface 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 for accommodating the display 151. In this embodiment, the case is formed as a front case 101 which forms an outer appearance of the terminal body. The case may be formed as a separate internal structure different from the front case 101. In this case,

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

The window 152 is mounted on the mounting portion 101a. The window 152 may be made of a material that can transmit light, for example, a light transmitting synthetic resin, a tempered glass, or the like. The window 152 may be formed to include a portion that can not transmit light.

The window 152 is divided into an opaque edge region S and a central region C surrounded by the edge region S. [ The edge region S may be seated and supported on the mounting portion 101a and the center region 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.

As described above, since the mobile terminal 100 related to the present invention is configured to transmit sound using the vibration generated from the sound output element 161, Is not formed. Therefore, a more simple front surface of the terminal body can be realized.

The window 152 can be firmly fixed to the mounting portion 101a through an adhesive film (not shown). The adhesive film seals the foreign material between the display 151 and the window 152 so that foreign matter can not penetrate and can be formed in a loop shape corresponding to the mounting portion 101a.

The display 151 is disposed on the rear surface of the window 152 and accommodated in the front case 101 to constitute the display portion 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 through which the light of the window 152 is transmitted.

The display 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, and a three-dimensional display (3D display).

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

The touch sensor is configured to convert a change in a voltage, an amount of charge, and the like occurring in a specific portion of the window 152 into an electrical input signal. The touch sensor is made transparent so that an image formed on the display 151 can be transmitted. A region of the touch sensor corresponding to a portion through which the light of the window 152 is transmitted forms an input region.

The touch sensor may have a conductive pattern patterned in such a manner that a conductive material is deposited on the window 152 itself or on 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 in the form of a film and attached to the back of the window 152. At this time, 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 have a hollow portion 101b corresponding to the display 151 and the frame 104 may be disposed on the back 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 using a screw, an adhesive sheet, or the like.

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

The support portion 104a is configured to support the display 151. The support portion 104a may be formed to cover most of the back surface of the display 151. [ Between the support 104a and the display 151, a pad 105 may be arranged to reduce the impact transmitted between them. In the figure, the pad 105 is formed in a loop shape.

At least one portion of the isolation portion 104b is disposed apart from the support portion 104a at a predetermined interval. In this figure, the frame 104 is partitioned by the slit 104c into the support portion 104a and the isolation portion 104b. The isolation portion 104b may be spaced apart from the display 151 by a predetermined distance by the pad 105 described above.

The isolator 104b is provided with an acoustic output element 161 and the acoustic output element 161 is electrically connected to the circuit board 180 to generate vibration under the control of the controller. The sound output element 161 generates sound through the vibration of the air due to the vibration, or transmits sound in a bone conduction manner. The acoustic output element 161 may be, for example, a bone conduction speaker, a bone conduction receiver, or the like.

A bone conduction speaker or bone conduction receiver is a bone conduction system that transmits sound. Bone conduction involves the use of the phenomenon of bone conduction oscillator, which is a transducer that converts an electrical signal into a vibrating signal, and that the sound is conducted to the skull without passing through the tympanic membrane. This concept corresponds to the air conduction that sounds in the air reach the inner ear through the ear canal, tympanic membrane, and calvarial bone. A bone conduction transducer is attached to the bone conduction speaker or the bone conduction receiver. The bone conduction transducer functions as a vibrating speaker for converting an electrical signal into a vibration signal to transmit sound.

Referring to these drawings, the acoustic output element 161 is configured to transmit the vibration generated by mounting to the isolation portion 104b to the window 152. The vibration isolating portion 104b is coupled to the front case 101 and the window 152 is mounted to the mounting portion 101a of the front case 101. The vibration is transmitted through the isolation portion 104b and the front case 101 The user is able to hear the sound through the vibration as the head contacts the window 152 at the time of a call.

Since the isolator 104b is spaced apart from the support portion 104a by the slit 104c and separated from the display 151 by the pad 105 disposed between the support portion 104a and the display 151, The transmission of vibration to the display device 104a and the display 151 is limited. Therefore, the transmission path of the vibration can be reduced, the loss of the 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 can be realized.

3, the isolation portion 104b may be formed in a cantilever shape that is resiliently deformable by the slit 104c, and the acoustic output element 161 may be mounted on the isolation portion 104b to have a similar level of free vibration Can be behaved. Further, the isolation portion 104b can be disposed adjacent to the end portion of the terminal body to secure the mounting property of the acoustic output element 161, and can transmit the vibration in a shorter path toward the window 152. [

3 and 4, at least a part of the acoustic output element 161 may be arranged so as to overlap with the edge region S in the thickness direction of the window 152. [ According to the above structure, the acoustic 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 on the mounting portion 101a.

Also, at least a part of the sound output element 161 may be disposed so as to overlap with the display 151 in the thickness direction of the window 152. According to this structure, a narrower bezel can be realized as compared with the case where the acoustic output element 161 is disposed on the side of the display 151. [

The circuit board 180 is formed with a cutout 180a in which the acoustic output element 161 is disposed. More specifically, in the circuit board 180, a cutout portion 180a penetrating the circuit board 180 is formed in a shape cut at one side, and the cutout portion 180a is provided with an acoustic output element 161. [ With such a configuration, the acoustic output element 161 can be arranged to penetrate the circuit board 180, thereby enabling a more compact part layout. Further, since the mountability of the sound output device 161 can be ensured and the sound output device 161 is disposed adjacent to one end of the terminal, it is possible to transmit the vibration in a shorter path toward the user's head in use.

The rear case 102 is coupled to the front case 101 and is arranged to cover the acoustic output element 161. [ The rear case 102 may be provided with a discharge hole 102a for discharging the ambient air of the acoustic output element 161. [ The discharge hole 102a may be formed at a portion facing the acoustic output element 161 in the rear case 102 or a portion adjacent thereto. Thus, a ringing phenomenon occurring on the rear surface of the acoustic output element 161 can 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 output hole of the sound output module 160 'provided on the rear surface of the terminal body. In FIG. 2, there is shown a hole integrated into one. Further, a filter for preventing foreign matter from entering the discharge hole 102a and / or the through hole 103a may be mounted.

The acoustic output element 161 is arranged to face the rear case 102 in a state of being mounted on the rear surface of the isolator 104b and the rear case 102 is provided between the acoustic output element 161 and the rear case 102 A first damping pad 106 may be provided 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, silicone, rubber or the like capable of elastic deformation.

The rear case 102 is formed with a battery accommodating portion 190 in which the battery 191 is accommodated. The bottom surface of the battery accommodating portion 190 on which the battery 191 is seated can be realized by the frame 104. The battery 191 may be built in or detachable from the battery receiving portion 190.

The battery case 191 cover 103 covering the battery 191 is detachably mounted on the rear case 102. 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 battery cover 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 made of a material capable of being elastically deformed.

Modifications of the above structure and other embodiments of the present invention will be described below. In the following description, the same or similar reference numerals are given to the same or similar components as in the previous embodiment, and the description thereof is replaced with the first explanation.

Figs. 5A and 5B are conceptual diagrams showing variations of the mounting structure of the sound output elements 261 and 361, and the front cases 201 and 301 are viewed from the rear.

Referring to FIG. 5A, the support portion 204a and the isolation portion 204b may be different members. The isolation portion 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 where the screw 241 is fastened is a fixed end, and the part which is not supported by the front case 201 but is placed in the inner space is free. The acoustic output element 261 is installed at the free end to form a behavior of a free vibration level.

The supporting portion 204a is constituted by a separate member, and is spaced apart from the separating portion 204b at a predetermined distance. The support portion 204a may be fixed to the front case 201 using a screw 242, an adhesive sheet or the like along the back edge of the front case 201 except for a portion where the isolation portion 204b is disposed. The support portion 204a may be formed to surround at least a part of the acoustic output element 261. [

The support portion 204a and the isolation portion 204b are formed in a thin sheet shape and may be formed by injection molding of synthetic resin or may be formed of a metal material such as stainless steel (STS), magnesium (Mg), or the like. The support portion 204a and the isolation portion 204b may be formed of the same material or may be formed of different materials.

The vibration generated in the acoustic output element 261 is transmitted to the support portion 204a and the display 251 by the slit 204c as compared with the prior structure in which the support portion 204a and the isolation portion 204b are partitioned by the slit 204c And the vibration can be more concentrated in the path that is transmitted to the window 252 through the front case 201. [

Referring to FIG. 5B, the support portion 304a is disposed to cover the back surface of the front case 301. FIG. The isolation portion 304b may be formed in one region of the support portion 304a. Specifically, a loop-shaped slit 304c is formed in a portion of the frame 304 adjacent to the end portion of the front case 301 to form an isolation portion 304b. The isolation portion 304b is provided with an acoustic output element 361 are installed.

The support portion 304a and the isolation portion 304b may be connected by a bridge portion 304d. The bridge portion 304d is thinly formed to enable elastic deformation so that the elastic portion can be independently and elastically deformed while the isolation portion 304b is fixed to the support portion 304a. Therefore, the acoustic output element 361 installed in the isolation portion 304b can operate similar to the free vibration level. At this time, the slit 304c is configured to restrict the vibration generated from the acoustic output element 361 from being transmitted to the support portion 304a and the display 351.

5A and 5B are selectively applicable to the mounting structure of the acoustic output elements 461, 561, and 661 to be described later.

6 is a cross-sectional view of a mobile terminal 400 in accordance with another embodiment of the present invention.

Referring to FIG. 6, a locking groove 401a 'is formed on the upper surface of the mounting portion 401a. The latching groove 401a 'may be formed at a portion adjacent to the display 451 in the mounting portion 401a. The separating portion 404b is formed with a latching hook 404b 'formed at least at one portion thereof so as to be bent so as to be attachable to the latching groove 401a'. The engaging hook 404b 'can be more firmly fixed to the engaging groove 401a' through the adhesive member.

The locking 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 acoustic output element 461 is directly transmitted to the window 452 through the isolation portion 404b. That is, since the front case 401 is not used, the loss of the vibration can be further reduced.

7 is a conceptual diagram showing a modification of the mounting structure of the acoustic output element 461 shown in FIG.

Referring to FIG. 7, the latching grooves 501a 'are formed on the adjacent surfaces forming the corners of the mounting portion 501a, respectively. The isolator 504b is attached to the front case 501 by the engagement hook 504b 'being engaged with the engagement groove 501a'. In this figure, it is seen that the isolation portion 504b is provided at one side edge of the terminal body. The isolation portion 504b is disposed so as to cover a part of the edge of the display 551, but is spaced apart at a predetermined interval so as not to be in direct contact.

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

8 is a cross-sectional view of a mobile terminal 600 in accordance with another embodiment of the present invention.

Referring to FIG. 8, the isolation portion 604b may be formed integrally with the front case 601. FIG. That is, the front case 601 may have a seating portion 601a and a receiving portion 601b which are recessed at different depths from one side. The display 651 is accommodated in the accommodating portion 601b and the window 652 is mounted on the seating portion 601a and arranged to cover the display 651. [

An acoustic output element 661 is mounted on the back surface of the accommodating portion 601b and is formed to transmit sound using bone conduction vibration. A slit 604c is formed in the receiving portion 601b to define a support portion 604a for supporting the display 651 and an isolation portion 604b for installing the acoustic output element 661. [ The display 651 and the isolation portion 604b may be spaced apart by a pad 605 disposed between the display 651 and the support portion 604a.

According to the structure, since the support portion 604a and the isolation portion 604b are formed by the front case 601 itself, a separate frame 604 is not required. Further, since the vibration is directly transmitted to the window 652 through the front case 601, a more efficient vibration transmission mechanism can be realized.

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 which is recessed on one surface thereof;
A display received in the case and configured to output time information;
A window disposed to cover the display and mounted to the mounting portion;
A support configured to support the display;
An isolator coupled to the case, the isolator having at least one portion spaced apart from the support by a predetermined distance; And
And an acoustic output element which is mounted on the isolation part and is configured to generate vibration, and which generates sound using the vibration or transmits the vibration through the window,
The isolator is mounted on the other side of the case,
Wherein the vibration generated in the acoustic output element is transmitted to the window through the isolator and the case. The method according to claim 1,
And the transmission of the vibration to the support portion is limited by the spacing arrangement between the support portion and the isolation portion. The method according to claim 1,
Wherein a pad is disposed between the display and the support for reducing impact transmission between the display and the support and for separating the display from the isolation. delete The method according to claim 1,
Wherein the support portion and the isolation portion are formed by a slit formed in a frame coupled to the case so as to cover the back surface of the display. 6. The method of claim 5,
Wherein the slit is formed to surround at least a part of the sound output element. 6. The method of claim 5,
Wherein the isolation portion is formed in a cantilever shape that is elastically deformable by the slit so that the acoustic output element forms a behavior of a free vibration level. delete The method according to claim 1,
And the isolation portion is formed integrally with the case. delete The method according to claim 1,
Wherein the case is formed with a latching recess which is recessed in the mounting portion,
Wherein the separator comprises a hook which is bent at least in one portion so as to be mounted on the retaining groove. delete delete delete The method according to claim 1,
In the above window,
A central area corresponding to the display, the central area being transparent to transmit the time information; And
An edge region that is formed to surround the central region and is opaque,
Wherein at least a part of the sound output element overlaps the edge area in the thickness direction of the window. delete delete delete delete delete

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