KR20160128680A - Mobile terminal - Google Patents

Abstract

The present invention relates to a mobile terminal. According to one aspect of the present invention, there is provided a mobile terminal, which is held by a user's body, includes: a display unit for outputting an image; A front case disposed on a rear side of the display unit and on which the display unit is seated; And a substrate portion provided inside the mobile terminal and on which electronic components for driving are mounted. When a momentary positional change of the mobile terminal is sensed, the display portion is moved backward by the magnetic force generated from the base portion .

Description

[0001] MOBILE TERMINAL [0002]

The present invention relates to a mobile terminal.

A terminal can be divided into a mobile terminal (mobile / portable terminal) and a stationary terminal according to whether the terminal can be moved. The mobile terminal can be divided into a handheld terminal and a vehicle mounted terminal according to whether the user can directly carry the mobile terminal.

The functions of mobile terminals are diversified. For example, there are data and voice communication, photographing and video shooting through a camera, voice recording, music file playback through a speaker system, and outputting an image or video on a display unit. Some terminals are equipped with an electronic game play function or a multimedia player function. In particular, modern mobile terminals can receive multicast signals that provide visual content such as broadcast and video or television programs.

Such a terminal has various functions, for example, in the form of a multimedia device having multiple functions such as photographing and photographing of a moving picture, reproduction of a music or video file, reception of a game and broadcasting, etc. .

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

1 is a cross-sectional view showing a coupling structure between a front case and a window of a mobile terminal according to the related art.

Referring to FIG. 1, a front structure of a conventional mobile terminal includes a front case 4 forming a front surface of a terminal body, and a window 2 fitted to the front surface of the front case 4. Between the window (2) and the front case (4), a tape (3) providing an adhesive force to both sides is provided, so that both configurations can be adhered.

In everyday life, a user frequently drops a mobile terminal. As a result, an impact is applied to the mobile terminal, so that internal parts are damaged, windows are damaged, and the user incurs temporal and property damages. Particularly, when the mobile terminal falls on the floor, most of the impact is applied to the four corners including the top left, right, bottom, left, and right sides of the terminal. Therefore, The worst is the damage.

In order to solve the above-described problems, there is a problem that the case of the mobile terminal is attached to a separate case or an accessory coupled to the user's body is used, but the design of the mobile terminal is hindered and the user feels troublesome.

The present invention has been proposed in order to solve the above problems, and it is an object of the present invention to provide a mobile terminal capable of safely protecting a display unit from an external impact.

According to an aspect of the present invention, there is provided a mobile terminal held by a user's body, the mobile terminal including: a display unit for outputting an image; A front case disposed on a rear side of the display unit and on which the display unit is seated; And a substrate portion provided inside the mobile terminal and on which electronic components for driving are mounted. When a momentary positional change of the mobile terminal is sensed, the display portion is moved backward by the magnetic force generated from the base portion The mobile terminal being characterized in that it is pulled out.

The mobile terminal according to the present invention has the following effects.

First, there is an advantage that an external impact can be prevented from being applied to the display unit by pulling the back surface of the display unit through the magnetic force.

Second, since the metal part provided on the back surface of the display part is disposed adjacent to four corners, there is an advantage that the display part can be prevented from being damaged even if an impact is applied to the corner.

1 is a cross-sectional view showing a coupling structure between a front case and a window of a mobile terminal according to a related art.
2 is a block diagram illustrating a mobile terminal according to the present invention;
3 is a front perspective view of a mobile terminal according to an embodiment of the present invention;
4 is a rear perspective view of a mobile terminal according to an embodiment of the present invention;
5 is an exploded perspective view of a mobile terminal according to an embodiment of the present invention;
FIG. 6 is a perspective view showing a rear surface of a display unit according to an embodiment of the present invention; FIG.
7 is a perspective view showing a front surface of a front case according to an embodiment of the present invention.
FIG. 8 is a perspective view illustrating a front surface of a substrate unit according to an embodiment of the present invention; FIG.
9 is a cross-sectional view taken along line A-A 'in FIG. 3;
10 is a cross-sectional view showing an anti-shock structure according to an embodiment of the present invention.
11 is a cross-sectional view showing a front side structure of a mobile terminal when a seating groove is formed as a hole.
12 is a cross-sectional view showing an impact-preventing structure when a magnetic force of a magnetic force unit according to an embodiment of the present invention is generated.
13 is a sectional view showing a front side structure of a mobile terminal when a magnetic force is generated according to an embodiment of the present invention;
FIG. 14 is a perspective view showing a magnetic force unit according to a second embodiment of the present invention; FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals are used to designate identical or similar elements, and redundant description thereof will be omitted. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role. In the following description of the embodiments of the present invention, a detailed description of related arts will be omitted when it is determined that the gist of the embodiments disclosed herein may be blurred. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. , ≪ / RTI > equivalents, and alternatives.

The mobile terminal described in this specification includes a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), a navigation device, a slate PC A tablet PC, an ultrabook, a wearable device such as a smartwatch, a smart glass, and a head mounted display (HMD). have.

However, it will be appreciated by those skilled in the art that the configuration according to the embodiments described herein may be applied to fixed terminals such as a digital TV, a desktop computer, a digital signage, and the like, will be.

FIG. 2 is a block diagram for explaining a mobile terminal according to the present invention, and FIGS. 3 and 4 are conceptual diagrams illustrating an example of a mobile terminal according to the present invention in different directions.

3 to 5, the mobile terminal 100 includes a wireless communication unit 110, an input unit 120, a sensing unit 140, an output unit 150, an interface unit 160, a memory 170, A control unit 180, a power supply unit 190, and the like. The components shown in FIG. 3 are not essential for implementing a mobile terminal, so that the mobile terminal described herein may have more or fewer components than the components listed above.

More specifically, the wireless communication unit 110 among the above-mentioned components may communicate with the mobile terminal 100 and the wireless communication system, between the mobile terminal 100 and another mobile terminal, And one or more modules that enable wireless communication between the servers. In addition, the wireless communication unit 110 may include one or more modules for connecting the mobile terminal 100 to one or more networks.

The wireless communication unit 110 may include at least one of a broadcast receiving module 111, a mobile communication module 112, a wireless Internet module 113, a short distance communication module 114, and a location information module 115 .

The input unit 120 includes a camera 121 or an image input unit for inputting a video signal, a microphone 122 for inputting an audio signal, an audio input unit, a user input unit 123 for receiving information from a user, For example, a touch key, a mechanical key, etc.). The voice data or image data collected by the input unit 120 may be analyzed and processed by a user's control command.

The sensing unit 140 may include one or more sensors for sensing at least one of information in the mobile terminal, surrounding environment information surrounding the mobile terminal, and user information. For example, the sensing unit 140 may include a proximity sensor 141, an illumination sensor 142, a touch sensor, an acceleration sensor, a magnetic sensor, A G-sensor, a gyroscope sensor, a motion sensor, an RGB sensor, an infrared sensor, a finger scan sensor, an ultrasonic sensor A microphone 226, a battery gauge, an environmental sensor (e.g., a barometer, a hygrometer, a thermometer, a radiation sensor (not shown)), an optical sensor , A thermal sensor, a gas sensor, etc.), a chemical sensor (e.g., an electronic nose, a healthcare sensor, a biometric sensor, etc.). Meanwhile, the mobile terminal disclosed in the present specification can combine and utilize information sensed by at least two of the sensors.

The output unit 150 generates at least one of the display unit 151, the sound output unit 152, the haptrip module 153, and the light output unit 154 to generate an output related to the visual, auditory, . The display unit 151 may have a mutual layer structure with the touch sensor or may be integrally formed to realize a touch screen. The touch screen may function as a user input unit 123 for providing an input interface between the mobile terminal 100 and a user and may provide an output interface between the mobile terminal 100 and a user.

The interface unit 160 serves as a path to various kinds of external devices connected to the mobile terminal 100. The interface unit 160 is connected to a device having a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, And may include at least one of a port, an audio I / O port, a video I / O port, and an earphone port. In the mobile terminal 100, corresponding to the connection of the external device to the interface unit 160, it is possible to perform appropriate control related to the connected external device.

In addition, the memory 170 stores data supporting various functions of the mobile terminal 100. The memory 170 may store a plurality of application programs or applications that are driven by the mobile terminal 100, data for operation of the mobile terminal 100, and commands. At least some of these applications may be downloaded from an external server via wireless communication. At least a part of these application programs may exist on the mobile terminal 100 from the time of departure for the basic functions (e.g., telephone call receiving, calling function, message receiving, and calling function) of the mobile terminal 100 have. Meanwhile, the application program may be stored in the memory 170, installed on the mobile terminal 100, and operated by the controller 180 to perform the operation (or function) of the mobile terminal.

In addition to the operations related to the application program, the controller 180 typically controls the overall operation of the mobile terminal 100. The control unit 180 processes signals, data, and information input or output through the above-mentioned components, or drives an application program stored in the memory 170 to provide or process appropriate information or functions to the user have.

In addition, the controller 180 may control at least some of the components illustrated in FIG. 2 in order to drive an application program stored in the memory 170. FIG. In addition, the controller 180 may operate at least two of the components included in the mobile terminal 100 in combination with each other for driving the application program.

Under the control of the controller 180, the power supply unit 190 receives external power and internal power and supplies power to the components included in the mobile terminal 100. The power supply unit 190 may include a battery, and the battery may be an internal battery or a replaceable battery.

At least some of the components may operate in cooperation with one another to implement a method of operation, control, or control of a mobile terminal according to various embodiments described below. In addition, the operation, control, or control method of the mobile terminal may be implemented on the mobile terminal by driving at least one application program stored in the memory 170. [

Referring to FIGS. 3 and 4, 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 folder type, a flip type, a slide type, a swing type, and a swivel type in which a watch type, a clip type, a glass type or two or more bodies are relatively movably coupled . A description of a particular type of mobile terminal, although relevant to a particular type of mobile terminal, is generally applicable to other types of mobile terminals.

Here, the terminal body can be understood as a concept of referring to the mobile terminal 100 as at least one aggregate.

The mobile terminal 100 includes a case (for example, a frame, a housing, a cover, etc.) which forms an appearance. As shown in the figure, the mobile terminal 100 may include a front case 101 and a rear case 102. Various electronic components are disposed in an inner space formed by the combination of the front case 101 and the rear case 102. At least one middle case may be additionally disposed between the front case 101 and the rear case 102. Hereinafter, for convenience of description, an assembly formed by the combination of the front case 101 and the rear case 102 is defined as a terminal main body.

A display unit 151 is disposed on a front surface of the terminal body to output information. The window 151a of the display unit 151 may be mounted on the front case 101 to form a front surface of the terminal body together with the front case 101. [

In some cases, electronic components may be mounted on the rear case 102 as well. Electronic components that can be attached to the rear case 102 include a detachable battery, an identification module, a memory card, and the like. In this case, the rear case 103 for covering the mounted electronic component may be detachably coupled to the rear case 102. [ Therefore, when the rear case 103 is separated from the rear case 102, the electronic parts mounted on the rear case 102 are exposed to the outside. In other words, the rear case 103 is detachably coupled to the rear surface of the terminal body formed by the combination of the front case 101 and the rear case 102 to cover the back surface of the terminal body.

As shown in the figure, when the rear case 103 is coupled to the rear case 102, a side portion of the rear case 102 may be exposed. The rear case 102 may be completely covered by the rear case 103 when the rear case 130 is engaged. Meanwhile, the rear case 103 may be provided with an opening for exposing the camera 121b and the sound output unit 152b to the outside.

These cases 101, 102, and 103 may be formed by injection molding of synthetic resin or may be formed of metal such as stainless steel (STS), aluminum (Al), titanium (Ti), or the like.

The mobile terminal 100 may be configured such that one case provides the internal space, unlike the above example in which a plurality of cases provide an internal space for accommodating various electronic components. In this case, a unibody mobile terminal 100 in which synthetic resin or metal is connected from the side to the rear side can be realized.

Meanwhile, the mobile terminal 100 may include a waterproof portion (not shown) for preventing water from penetrating into the terminal body. For example, the waterproof portion is provided between the window 151a and the front case 101, between the front case 101 and the rear case 102, or between the rear case 102 and the rear case 103 And may include a waterproof member that seals the inner space at the time of engagement thereof.

The mobile terminal 100 is provided with a display unit 151, first and second sound output units 152a and 152b, a proximity sensor 141, an illuminance sensor 142, a light output unit 154, 2 cameras 121a and 121b, first to third operation units 123a to 123c, a microphone 122, an interface unit 160, and the like.

3 and 4, the display unit 151, the first sound output unit 152a, the proximity sensor 141, the light intensity sensor 142, The first camera 121a and the first operation unit 123a are disposed on the side of the terminal body and the second operation unit 123b, the microphone 122, Wherein the second sound output unit 152b, the second camera 121b, the third operation unit 123c, and the flash 124 are disposed on the rear surface of the terminal body, 100) will be described as an example.

However, these configurations are not limited to this arrangement. These configurations may be excluded or replaced as needed, or placed on different planes. For example, the first operation unit 123a may not be provided on the front surface of the terminal body, and the second sound output unit 152b may be provided on the side of the terminal body rather than the rear surface of the terminal body.

The display unit 151 displays (outputs) the information processed by the mobile terminal 100. For example, the display unit 151 may display execution screen information of an application program driven by the mobile terminal 100, or UI (User Interface) and GUI (Graphic User Interface) information according to the execution screen information have.

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, a 3D display, and an e-ink display.

In addition, the display unit 151 may exist in two or more depending on the embodiment of the mobile terminal 100. [ In this case, the mobile terminal 100 may be provided with a plurality of display portions spaced apart from one another or integrally disposed, or may be disposed on different surfaces.

The display unit 151 may include a touch sensor that senses a touch to the display unit 151 so that a control command can be received by a touch method. When a touch is made to the display unit 151, the touch sensor senses the touch, and the control unit 180 generates a control command corresponding to the touch based on the touch. 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 sensor is formed in a film form having a touch pattern and disposed between the window 151a and a display (not shown) on the rear surface of the window 151a, or is directly patterned on the back surface of the window 151a. Metal wire. Alternatively, the touch sensor may be formed integrally with the display. For example, the touch sensor may be disposed on a substrate of the display or inside the display.

In this case, the display unit 151 may form a touch screen together with the touch sensor. In this case, the touch screen may function as a user input unit 123 (see FIG. 3). In some cases, the touch screen may replace at least some of the functions of the first operation unit 123a.

The first sound output unit 152a may be implemented as a receiver for transmitting a call sound to a user's ear and the second sound output unit 152b may be a loudspeaker for outputting various alarm sounds or multimedia playback sounds loud speakers.

The window 151a of the display unit 151 may have an acoustic hole for emitting sound generated from the first acoustic output unit 152a. However, the present invention is not limited to this, and the sound may be configured to be emitted along an assembly gap (for example, a gap between the window 151a and the front case 101) between the structures. In this case, the appearance of the mobile terminal 100 can be made simpler because the holes that are formed independently for the apparent acoustic output are hidden or hidden.

The light output unit 154 outputs light for notifying the occurrence of an event. Examples of the event include a message reception, a call signal reception, a missed call, an alarm, a schedule notification, an email reception, and reception of information through an application. The controller 180 may control the light output unit 154 to terminate the output of light when an event confirmation of the user is detected.

The first camera 121a processes a still image or a moving image frame obtained by the image sensor in a photographing mode or a video communication mode. The processed image frame may be displayed on the display unit 151 and may be stored in the memory 170.

The first and second operation units 123a and 123b are examples of the user input unit 123 operated to receive a command for controlling the operation of the mobile terminal 100, Can be collectively called. The first and second operation units 123a and 123b can be employed in any tactile manner, such as touch, push, and scroll, in a tactile manner. Also, the first and second operation units 123a and 123b can be employed in a manner that the user can operate without touching the user through a proximity touch, a hovering touch, or the like.

In the figure, the first operation unit 123a is a touch key, but the present invention is not limited thereto. For example, the first operation unit 123a may be a mechanical key or a combination of a touch key and a touch key.

The contents input by the first and second operation units 123a and 123b can be variously set. For example, the first operation unit 123a receives commands such as a menu, a home key, a cancellation, a search, and the like, and the second operation unit 123b receives commands from the first or second sound output units 152a and 152b, And a switch to the touch recognition mode of the display unit 151 can be input.

On the other hand, a third operation unit 123c may be provided on the rear surface of the terminal body as another example of the user input unit 123. [ The third operation unit 123c is operated to receive a command for controlling the operation of the mobile terminal 100, and input contents may be variously set. For example, a command for turning on / off the power, starting, ending, scrolling and the like, adjusting the size of the sound output from the first and second sound output units 152a and 152b, Mode, and the like. The third operation unit 123c may be implemented as a touch input, a push input, or a combination thereof.

The third operation unit 123c may be arranged to overlap with the display unit 151 on the front side in the thickness direction of the terminal body. For example, the third operation unit 123c may be disposed at a rear upper end portion of the terminal body so that the user can easily operate the terminal body when the user holds the terminal body with one hand. However, the present invention is not limited thereto, and the position of the third operation unit 123c may be changed.

When the third operation unit 123c is provided on the rear surface of the terminal body, a new type of user interface using the third operation unit 123c can be realized. In addition, the first operation unit 123a is not disposed on the front surface of the terminal body in place of at least a part of the functions of the first operation unit 123a provided on the front surface of the terminal body, The display unit 151 may be configured as a larger screen.

Meanwhile, the mobile terminal 100 may be provided with a fingerprint recognition sensor for recognizing the fingerprint of the user, and the controller 180 may use the fingerprint information sensed through the fingerprint recognition sensor as authentication means. The fingerprint recognition sensor may be embedded in the display unit 151 or the user input unit 123.

The microphone 122 is configured to receive a user's voice, other sounds, and the like. The microphone 122 may be provided at a plurality of locations to receive stereophonic sound.

The interface unit 160 is a path through which the mobile terminal 100 can be connected to an external device. For example, the interface unit 160 may include a connection terminal for connection with another device (for example, an earphone or an external speaker), a port for short-range communication (for example, an infrared port (IrDA Port), a Bluetooth port A Bluetooth port, a wireless LAN port, or the like), or a power supply terminal for supplying power to the mobile terminal 100. The interface unit 160 may be implemented as a socket for receiving an external card such as a SIM (Subscriber Identification Module) or a UIM (User Identity Module) or a memory card for storing information.

And the second camera 121b may be disposed on a rear surface of the terminal body. In this case, the second camera 121b has a photographing direction which is substantially opposite to that of the first camera 121a.

The second camera 121b may include a plurality of lenses arranged along at least one line. The plurality of lenses may be arranged in a matrix form. Such a camera can be named an 'array camera'. When the second camera 121b is configured as an array camera, images can be taken in various ways using a plurality of lenses, and a better quality image can be obtained.

The flash 124 may be disposed adjacent to the second camera 121b. The flash 124 illuminates the subject toward the subject when the subject is photographed by the second camera 121b.

And a second sound output unit 152b may be additionally disposed in the terminal body. The second sound output unit 152b may implement a stereo function together with the first sound output unit 152a and may be used for implementing a speakerphone mode during a call.

The terminal body may be provided with at least one antenna for wireless communication. The antenna may be embedded in the terminal body or formed in the case. For example, an antenna constituting a part of the broadcast receiving module 111 (refer to FIG. 3) can be configured to be fetchable from the terminal body. Alternatively, the antenna may be formed as a film type and attached to the inner surface of the rear case 103, or a case including a conductive material may be configured to function as an antenna.

The terminal body is provided with a power supply unit 190 (see FIG. 3) for supplying power to the mobile terminal 100. The power supply unit 190 may include a battery 191 built in the terminal body or detachable from the outside of the terminal body.

The battery 191 may be configured to receive power through a power cable connected to the interface unit 160. Also, the battery 191 may be configured to be wirelessly chargeable through a wireless charger. The wireless charging may be implemented by a magnetic induction method or a resonance method (magnetic resonance method).

In this figure, the rear case 103 is coupled to the rear case 102 to cover the battery 191, thereby limiting the detachment of the battery 191, As shown in Fig. When the battery 191 is detachably attached to the terminal body, the rear case 103 may be detachably coupled to the rear case 102.

The mobile terminal 100 may be provided with an accessory for protecting the appearance or for supplementing or extending the function of the mobile terminal 100. As an example of such an accessory, a cover or a pouch for covering or accommodating at least one surface of the mobile terminal 100 can be mentioned. The cover or pouch may be configured to interlock with the display unit 151 to expand the function of the mobile terminal 100. Another example of an accessory is a touch pen for supplementing or extending a touch input to the touch screen.

5 is an exploded perspective view of a mobile terminal according to an embodiment of the present invention.

5, the mobile terminal 100 includes a display unit 151 disposed on the front surface thereof, and a front case 101 (see FIG. 1) on which the display unit 151 is mounted on the rear surface of the display unit 151 A base portion 145 disposed between the front case 101 and the rear case 102 and mounted with electronic components necessary for driving the mobile terminal 100; A rear case 102 disposed on the rear surface of the body 101 and having a receiving hole 102a for receiving the battery 191 therein and detachably coupled to a rear surface of the front case 101, And a rear cover 103 for covering the electronic components mounted inside the housing 100. [

Although the exposure hole 103a for exposing the third operation unit 123c to the outside is shown in the figure, the second camera 121b, the second sound output unit 152b, And an exposure hole for exposing the third operation unit 123 and the third operation unit 123c to the outside of the rear cover 103, respectively.

The front case 101 and the rear case 102 may be coupled to each other through a screw 131. The rear cover 103 is detachably coupled to the rear case 102 so that when the user removes the rear cover 103 from the rear case 102, have.

Hereinafter, the impact prevention structure of the display unit 151 will be described.

FIG. 6 is a perspective view showing a back surface of a display unit according to an embodiment of the present invention. FIG.

Referring to FIG. 6, on the display unit 151, an exposure for exposing the first camera 121a, the first sound output unit 152a, the ambient light sensor 142 and the proximity sensor 141 to the outside A hole 214 may be formed. A bonding portion 210 may be provided between the display portion 151 and the front case 101 to provide an adhesive force on both sides to adhere the display portion 151 to the front case 101 . For example, the adhesive portion 210 may be a tape coated with an adhesive on both sides.

A metal part 212 is provided on the back surface of the display part 151. The plurality of metal parts 212 may be disposed at the upper left, right, lower left, and right quadrants adjacent to the corners of the back surface of the display unit 151, respectively.

The metal part 212 may be pulled toward the back surface by a magnetic part 230 (see FIG. 8) of the substrate part 155, which will be described later, as a magnetic body responsive to a magnetic force. That is, the metal part 212 may be a metal of a magnetic material, but is limited thereto, and may be provided with various magnetic materials including a magnet that can be reacted by a magnetic force.

It should be noted that the position of the metal part 212 adjacent to the four corners of the back surface of the display part 151 may be variously changed in the back surface of the display part 151.

Meanwhile, as described above, the window 151a is formed on the front surface of the display unit 151. [ In this specification, the metal part 212 disposed on the rear surface of the display part 151 means that the metal part 212 is a part of the display part 151, And a case in which it is disposed on the back surface of the module or on the back surface of the window 151a.

7 is a perspective view showing a front surface of a front case according to an embodiment of the present invention.

Referring to FIG. 7, a front surface of the front case 101 is formed with a seating groove 221 on which a part of the display unit 151 is seated. The seating groove 221 may include a bottom portion 222 and side walls 224 forming an inner circumferential surface of the seating groove 221. In addition, an edge portion 225 forming a bezel is formed on the front edge of the front case 101. A portion of the front edge of the front case 101 protrudes upward to form a boundary of the display unit 151. [ A part of the display unit 151 that is seated in the seating groove 221 may include an LCD or a backlight unit that outputs an image of the mobile terminal 100. The edge unit 225 The window 151a can be seated in the inner region of the window 151a. Therefore, the inner region of the edge portion 225 is understood as a seating surface on which the entire display portion 151 is seated.

A recess 220 is formed in the front surface of the front case 101 so as to be recessed at a predetermined distance toward the rear so that the metal part 212 is inserted. The recess 220 may be disposed at the upper left, right, lower left, and right quadrants adjacent to corners of the front surface of the front case 101, respectively. That is, the recessed groove 220 is formed at a position of the metal part 212 located on the rear surface of the display part 151 when the display part 151 is coupled to the front surface of the front case 101 As shown in Fig.

The height of the inner circumferential surface of the recess 220 may be greater than the thickness of the metal portion 212. In detail, when the display unit 151 is coupled to the front surface of the front case 101, the metal part 212 is inserted into the recess 220. At this time, the opposite surface, that is, the exposed surface, of the outer surface of the metal part 212, which is in contact with the display part 151, may be spaced apart from the bottom surface 226 of the recess 220. In other words, a gap is formed from the bottom surface 226 of the recess 220 to the metal portion 212.

As another example, the recess 220 may be formed in the form of a hole passing through the front surface of the front case 101 from the front surface to the rear surface. At this time, the bottom surface 226 is not formed in the recess 220, and a part of the substrate portion 145 is exposed through the recess 220 to the front surface of the front case 101 .

FIG. 8 is a perspective view showing a front view of a substrate unit according to an embodiment of the present invention, and FIG. 9 is a sectional view taken along the line A-A 'in FIG.

8 illustrates a case where the position sensing sensor 232 and the magnetic force unit 230 are mounted on the substrate unit 145. This is a conceptual view of the substrate unit 145 for explaining the structure for preventing the impact of the display unit. Various electronic components for driving the mobile terminal 100 may be mounted on the base plate 145.

8 and 9, a magnetic portion 230 for selectively applying a magnetic force to the metal portion 212 is provided on the front surface of the substrate portion 145. As shown in FIG. The magnetic force unit 230 may be disposed at the upper left, right, lower left, and right quadrants adjacent to the corners of the front surface of the substrate unit 145, respectively. That is, the position of the magnetic force part 230 on the base plate 145 corresponds to the position of the recess 220 of the front case 101. Accordingly, when the magnetic force of the magnetic force part 230 is generated, the generated magnetic force can be transmitted to the metal part 212 fitted in the recess 220.

For example, the magnetic force unit 230 may be an electromagnet. In this embodiment, the magnetic force unit 230 selectively provides the magnetic force to the metal part 212 through the command of the control part 180, The pulled-up state can be released by pulling the metal part 212 or releasing the magnetic force.

A position sensor 232 for detecting a change in the position of the mobile terminal 100 is mounted on the base 145. The position sensor 232 is a sensor for detecting a change in the position of the mobile terminal 100 according to the direction change and a movement of the mobile terminal 100 instantaneously. Lt; / RTI >

Accordingly, the controller 180 can sense that the mobile terminal 100 is inadvertently detached from the user's body through the position sensor 232. [ In other words, the position sensor 232 may be detached from the user's body, and the mobile terminal 100 may be detected to fall to the floor or the ground.

The sensing sensitivity of the position sensing sensor 232 can be appropriately adjusted to distinguish between a movement according to the use of a general mobile terminal and a movement when the mobile terminal falls on the floor.

Hereinafter, the impact prevention process of the display unit 151 will be described.

FIG. 10 is a cross-sectional view showing an anti-shock structure according to an embodiment of the present invention, FIG. 11 is a cross-sectional view showing a front side structure of a mobile terminal when a seating groove is formed in a hole, FIG. 13 is a cross-sectional view illustrating a front side structure of a mobile terminal when a magnetic force is generated according to an embodiment of the present invention. FIG.

10 and 11, a current does not flow through the magnetic force part 230 during normal operation, and no magnetic force is generated. Therefore, the metal part 212 forms a certain gap S with the bottom surface 226 in the recess 220.

The display unit 151 located on the front surface of the metal part 212 projects from the front surface of the mobile terminal 100 to the front of the front case 101 to form a front surface of the mobile terminal 100 can do.

On the other hand, the normal state refers to a general use situation of the mobile terminal 100, that is, a situation in which the mobile terminal 100 is not separated from the user's body.

Referring to FIGS. 12 and 13, a magnetic force is generated in the magnetic force unit 230 in a state of being separated from a user's body of the mobile terminal 100, that is, in a state of falling on the floor or the ground.

In detail, the controller 180 may receive a signal from the position sensor 232 to sense that the mobile terminal 100 is in a falling state. Thus, a signal for generating magnetic force is transmitted to the magnetic force unit 230.

When the magnetic force is generated in the magnetic force part 230, the metal part 212 facing through the recess 220 or the hole is pulled toward the inside of the mobile terminal 100. A magnetic force is applied to the magnetic force part 230 so that the attraction force of the metal part 230 is pulled backward.

As a result, the edge of the display unit 151 is pulled rearward toward the front case 101 and is moved to the inside of the front case 101. That is, the display unit 151 is pulled backward from the inside of the edge portion 225 of the front case 101.

Therefore, the edge of the display unit 151 does not protrude forward of the front case 101, that is, outside the edge portion 225. Therefore, even if the mobile terminal 100 is dropped on the floor, the impact is transmitted to the case that forms the outer shape of the mobile terminal 100, so that the display unit 151 can be prevented from being damaged.

That is, when the mobile terminal according to the related art is dropped on the floor or the ground, most of the impact is applied to the four corners of the mobile terminal, and the impact due to the impact is transmitted to the display unit relatively protruding forward, .

The magnetic force unit 230 pulls the edge of the display unit 151 at the moment when the mobile terminal 100 is detected to be dropped so that the impact force transmitted to the display unit 151 is relaxed There is an advantage that damage to the display unit can be prevented eventually.

FIG. 14 is a perspective view showing a magnetic force unit according to a second embodiment of the present invention. FIG.

Referring to FIG. 14, a shielding portion 235 may be provided around the magnetic force portion 230 mounted on the front surface of the base plate portion 145. The shielding portion 235 is for preventing damage to the electronic parts on the substrate portion 145 due to the magnetic force of the magnetic force portion 230. For example, It may be a silicon steel sheet.

Therefore, it is possible to prevent the electronic parts mounted on the substrate unit 145 from being demaged through the shielding part 235 surrounding the side surface of the magnetic force part 235 except the upper surface.

Claims (10)

In a mobile terminal held by a user's body,
A display unit for outputting an image;
A front case disposed on a rear side of the display unit and on which the display unit is seated; And
And a substrate portion provided inside the mobile terminal and on which an electronic component for driving is mounted,
Wherein when the instantaneous positional change of the mobile terminal is sensed, the display unit is pulled backward by the magnetic force generated from the base unit.
The method according to claim 1,
A metal part as a magnetic body is provided on the back surface of the display part,
And a magnetic force part for providing an attractive force to the metal part by a signal is selectively provided on a front surface of the substrate part.
3. The method of claim 2,
Wherein the metal part is disposed at four edges of upper, left, right, lower left, and right sides adjacent to corners of the back surface of the display part,
Wherein the magnetic force portion is disposed in a region corresponding to the metal portion on the front surface of the substrate portion.
3. The method of claim 2,
On the front surface of the front case,
And a depressed groove recessed toward the rear is formed to fit the metal part.
3. The method of claim 2,
In the front case,
And a hole penetrating from the front surface to the rear surface is formed to fit the metal part.
3. The method of claim 2,
On the substrate portion,
And a position sensor for detecting an instantaneous position change of the mobile terminal is mounted.
The method according to claim 6,
The control unit,
Wherein the mobile terminal generates a magnetic force toward the metal part by transmitting a signal to the magnetic part when the mobile terminal is detected to be detached from the user's body through the position sensing sensor.
3. The method of claim 2,
In the substrate portion,
And a shielding portion surrounding the side surface of the magnetic force portion to prevent damage to other electronic components mounted on the magnetic force portion by magnetic force generation.
9. The method of claim 8,
Wherein the shielding portion is a silicon steel plate.
The method according to claim 1,
The front case includes:
A seating surface on which the display unit is seated; And
And an edge portion protruding along the edge of the seating surface to form a bezel,
Wherein the display unit is pulled toward the seating surface from the inside of the edge when moving backward.

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