KR20150039024A

KR20150039024A - Mobile terminal

Info

Publication number: KR20150039024A
Application number: KR20130117524A
Authority: KR
Inventors: 권우용; 장석우; 추정근
Original assignee: 엘지전자 주식회사
Priority date: 2013-10-01
Filing date: 2013-10-01
Publication date: 2015-04-09

Abstract

A mobile terminal according to an exemplary embodiment of the present invention includes a terminal body having a display unit mounted on one surface thereof, a window unit coupled to the terminal unit to cover the display unit, and a display unit disposed at an edge of the window unit, Wherein a rim of the window portion includes a plurality of side surfaces and an edge that is a boundary of the side surfaces and the buffer portion is located at least at the corner and has a greater ductility than the window portion and the terminal body .

Description

[0001] MOBILE TERMINAL [0002]

The present invention relates to a mobile terminal.

A function capable of inputting / outputting data, and a function of storing data. As the function of the mobile terminal is diversified, the mobile terminal has complicated functions such as photographing and photographing of a moving picture, playback of a music file or a moving picture file, reception of a game, broadcasting, wireless Internet, etc., and a comprehensive multimedia device .

The mobile terminal is considered to be a personal portable device for expressing its own personality, and various designs are required. Examples of such designs include a bar type, a slide type, a folder type, and a swivel type.

In order to support and enhance the function of the mobile terminal, it may be considered to improve the structural part of the mobile terminal or to suggest a new structure of the mobile terminal.

According to the trend of realizing the wide width of the display unit, the window unit is formed wide on the front surface of the terminal. At this time, there is a problem in that when the user falls by carelessness during use of the terminal, the damage is concentrated on the window adjacent to the corner of the terminal.

A problem to be solved by the present invention is to provide a mobile terminal which has a simple manufacturing method and protects a window portion at the time of dropping the mobile terminal.

According to an aspect of the present invention, there is provided a mobile terminal including a terminal body having a display unit mounted on one surface thereof, a window unit coupled to the terminal body to cover the display unit, Wherein the edge of the window portion includes a plurality of side surfaces and an edge that is a boundary of the side surfaces, the buffer portion is located at least at the corner, and the window portion and the terminal body And has a greater ductility.

The window portion may include a rear surface positioned adjacent to the display portion, a front surface facing the rear surface and exposed to the outside, and a side surface connecting the front surface and the rear surface and forming the rim, And the case may be disposed so as to surround at least a side surface of the window portion.

On the other hand, the side surfaces of the case and the window portion may be spaced such that the buffer portion is positioned.

The case may include a window hole formed to correspond to the display unit, a bezel forming a rim of the window hole and surrounding a side of the window unit, and a bezel unit extending from a lower end of the bezel unit, And the buffer portion may be positioned between the bezel portion and the side surface of the window portion.

On the other hand, the buffer portion may have adhesiveness and viscosity.

According to the mobile terminal of the present invention, there are one or more of the following effects.

It is possible to prevent the breakage from concentrating on the window adjacent to the corner of the terminal when the user falls by carelessly during use of the mobile terminal of the embodiment.

The embodiment has an advantage that the impact force concentrated on the corner of the terminal can be eliminated through the shock absorbing part.

Further, in the embodiment, the buffer portion has a viscosity and an adhesive force, which is advantageous in that it is easy to deposit on the edge of the window portion.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

1 is a perspective view of a mobile terminal according to an exemplary embodiment of the present invention.
2 is a perspective view of a mobile terminal according to an embodiment of the present invention as viewed from the rear.
3 is an exploded perspective view of a mobile terminal according to an embodiment of the present invention.
FIG. 4 is a partial cross-sectional view of the mobile terminal of FIG. 1 taken along line AA.
5 is an enlarged view of a corner portion of the mobile terminal of FIG.
FIG. 6 is a reference view showing a falling state of a mobile terminal according to an embodiment of the present invention. Referring to FIG.
7 is a partial cross-sectional view of a mobile terminal according to another embodiment.
8 is a perspective view of a mobile terminal according to another embodiment of the present invention.
9 is an exploded perspective view of the mobile terminal of FIG.
FIG. 10 is a partial cross-sectional view of the mobile terminal of FIG. 8 taken along the BB line.
11 is a partial cross-sectional view of a mobile terminal according to another embodiment.
12 is a view illustrating a method of manufacturing a window portion and a buffer portion according to an embodiment of the present invention.
13 is a view showing a window part and a method of manufacturing the buffer part according to another embodiment.
Figs. 14 to 19 are diagrams showing a step of preparing the window portion of the embodiment. Fig.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

The terms spatially relative, "below", "beneath", "lower", "above", "upper" Can be used to easily describe the correlation of components with other components. Spatially relative terms should be understood as terms that include different orientations of components during use or operation in addition to those shown in the drawings. For example, when inverting an element shown in the figures, an element described as "below" or "beneath" of another element may be placed "above" another element . Thus, the exemplary term "below" can include both downward and upward directions. The components can also be oriented in different directions, so that spatially relative terms can be interpreted according to orientation.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. &Quot; comprises "and / or" comprising ", as used herein, unless the recited component, step, and / or step does not exclude the presence or addition of one or more other elements, steps and / I never do that.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.

In the drawings, the thickness and the size of each component are exaggerated, omitted, or schematically shown for convenience and clarity of explanation. Also, the size and area of each component do not entirely reflect actual size or area.

Further, the angles and directions mentioned in the description of the structure of the embodiment are based on those shown in the drawings. In the description of the structures constituting the embodiments in the specification, reference points and positional relationships with respect to angles are not explicitly referred to, reference is made to the relevant drawings.

Hereinafter, a mobile terminal related to the present invention will be described in detail with reference to the drawings. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role.

The mobile terminal described in this specification includes a mobile phone, a smart phone, a notebook computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), and navigation.

Hereinafter, for convenience of description, a bar-type mobile terminal having a front touch screen among various types of mobile terminals such as a folder type, a bar type, a swing type, a slider type, etc. will be described as an example. However, the present invention is not limited to a bar-type mobile terminal.

FIG. 1 is a perspective view of a mobile terminal according to an embodiment of the present invention, FIG. 2 is a perspective view of a mobile terminal according to an embodiment of the present invention, FIG. 4 is a partial cross-sectional view of the mobile terminal of FIG. 1 taken along line AA.

The mobile terminal 100 according to the embodiment includes a terminal body on which a display unit 141 is mounted on one side, a window unit 140 coupled to the terminal body to cover the display unit 141, 140b and 140c so as to protect the window part 140 from an external impact and the buffer part 180 is characterized by having a greater ductility than the window part 140 and the terminal body .

First, a schematic configuration of the mobile terminal 100 will be described below and will be described in detail later.

The main body of the terminal may include an electronic component inside the case and the case which form the external appearance.

Specifically, the case is formed by the front case 111 and the rear case 121. Various electronic components are embedded in the space formed by the front case 111 and the rear case 121. At least one intermediate case may be additionally disposed between the front case 111 and the rear case 121. [ The cases may be formed by injection molding a synthetic resin, or may be formed to have a metal material such as stainless steel (STS) or titanium (Ti) or the like.

The front case 111 may include a window 140, a first sound output unit 114, a first image input unit 115, an acoustic input unit 117, and the like.

A display unit 141 vertically overlapped with the window unit 140 may be disposed under the window unit 140.

The display unit 141 includes an LCD (Liquid Crystal Display) module, an OLED (Organic Light Emitting Diodes) module, and the like that visually express information. The display unit 141 may be configured to operate as a touch screen by inputting information by touching the user by overlapping the touch pad with the layer structure in the display unit 141. [

The display unit 141 displays and outputs information processed by the mobile terminal 100. For example, when the mobile terminal 100 is in the call mode, a UI (User Interface) or a GUI (Graphic User Interface) associated with a call is displayed. When the mobile terminal 100 is in the video communication mode or the photographing mode, the photographed or received images can be displayed individually or simultaneously, and the UI and the GUI are displayed.

The first sound output unit 114 outputs audio data received from a radio communication unit or stored in a memory in a call signal reception mode, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, and the like. The first sound output unit 114 outputs sound signals related to functions performed in the mobile terminal 100, for example, a call signal reception tone, a message reception tone, and the like. The first sound output unit 114 may include a receiver, a speaker, a buzzer, and the like.

The first image input unit 115 may be implemented in the form of a camera module for capturing an image or a moving image of a user. The first image input unit 115 may be adapted to capture an image or a moving image of a user.

The sound input unit 117 may be implemented in the form of a microphone, for example, to receive a user's voice, other sounds, and the like.

The window 140 may have a structure in which one side is exposed to the outside and at least one side is in contact with the case and covers one side of the display unit 141. It is in the form of a thin plate. The window portion 140 will be described later.

A user input unit 123, an interface 124, a power supply unit 125, and the like may be disposed on the rear case 121 mounted on the rear surface 140d side of the mobile terminal 100. [

The user input unit 123 may be installed on a side surface of the rear case 121. The user input unit 123 can be employed in any manner as long as the user operates in a tactile manner with a tactile impression. For example, the operation unit may be implemented by a dome switch or a touch screen, a touch pad, or a wheel, a jog type, a joystick, or the like, As shown in FIG.

When the user touches the user input unit 123, the control command is recognized as a control command to the microcomputer built in the main body of the mobile terminal 100. The microcomputer outputs a control signal for controlling the mobile terminal 100 based on the control signal .

In a functional aspect, the user input unit 123 can be used for inputting a menu such as start, end, and the like. In addition to a scroll function, a hotkey for performing a special function such as activation of the first image input unit 115, Lt; / RTI >

The interface 124 is a path for allowing the mobile terminal 100 to exchange data with an external device.

For example, the interface 124 may be a wired or wireless connection terminal for connecting to an earphone, a port for short range communication (e.g., an IrDA port, a Bluetooth port, a wireless port, Or a power supply terminal for supplying power to the mobile terminal 100. The power supply terminal may be a power supply terminal, The interface 124 may be a card socket that accepts an external card such as a subscriber identification module (SIM) or a user identity module (UIM), a memory card for information storage, and the like.

The power supply unit 125 is mounted on the rear case 121 for supplying power to the mobile terminal 100. The power supply unit 125 may be detachably coupled, for example, for charging, as a rechargeable battery, for example.

A second image input unit 127, a second sound output unit 130, a broadcast signal receiving antenna 131, and the like may be further disposed in the rear case 121. [

The second image input unit 127 may have a photographing direction substantially opposite to that of the first image input unit 115 and may be a camera having different pixels from the first image input unit. For example, the first image input unit 115 has low pixels so that it is easy to capture a face of a user in the case of a video call or the like and send it to the other party, and the second image input unit 127 photographs a general object It is preferable to have a high pixel because it is often not transmitted.

A flash 128 and a mirror 129 are additionally disposed adjacent to the second image input unit 127. The flash 128 shines light toward the subject when the subject is photographed by the second image input unit 127. The mirror unit 129 allows the user to illuminate the user's own face or the like when the user intends to take a picture of himself / herself (self-photographing) using the second image input unit 127.

The second sound output unit 130 may implement a stereo function together with the first sound output unit 114 and may be used for talking in a speaker phone mode.

The antenna 133 for receiving a broadcast signal may be disposed on one side of the rear case 121 in addition to an antenna for communication. The antenna 131 can be installed to be able to be drawn out to the rear case 121.

A circuit board 170, a switch, and the like may be mounted inside the case.

The circuit board 170 may be configured as an example of a control unit for operating various functions of the mobile terminal 100. [ The circuit board 170 may sense an electrical change, for example, a change in capacitance or amount of charge, occurring within the window portion 140 that occurs as a user touches the window portion 140. The detected electrical change is output as a control signal by a microcomputer built in the circuit board 170 to control various operations of the mobile terminal 100. [

A wireless communication unit (not shown), a memory (not shown), and a microcomputer (not shown) may be incorporated in the circuit board 170.

The wireless communication unit may include one or more modules for enabling wireless communication between the mobile terminal 100 and the wireless communication system or between the mobile terminal 100 and the network in which the mobile terminal 100 is located. For example, the wireless communication unit may include a broadcast receiving module (not shown), a mobile communication module (not shown), a wireless Internet module (not shown), a short distance communication module (not shown), and a GPS module .

The broadcast receiving module receives at least one of a broadcast signal and broadcast related information from an external broadcast management server through a broadcast channel. At this time, the broadcast channel may include a satellite channel, a terrestrial channel, and the like. The broadcast management server may refer to a server for generating and transmitting at least one of a broadcast signal and broadcast related information and a server for receiving at least one of the generated broadcast signal and broadcast related information and transmitting the broadcast signal to the terminal.

The broadcast-related information may mean information related to a broadcast channel, a broadcast program, or a broadcast service provider. The broadcast signal may include a TV broadcast signal, a radio broadcast signal, a data broadcast signal, and a broadcast signal in which a data broadcast signal is combined with a TV broadcast signal or a radio broadcast signal. The broadcast-related information can also be provided through a mobile communication network, in which case it can be received by the mobile communication module. Broadcast-related information can exist in various forms. For example, an EPG (Electronic Program Guide) of DMB (Digital Multimedia Broadcasting) or an ESG (Electronic Service Guide) of Digital Video Broadcast-Handheld (DVB-H).

The broadcast receiving module receives a broadcast signal using various broadcasting systems. In particular, the broadcast receiving module may be a Digital Multimedia Broadcasting-Terrestrial (DMB-T), a Digital Multimedia Broadcasting-Satellite (DMB-S), a Media Forward Link Only (Digital Video Broadcast-Handheld), ISDB-T (Integrated Services Digital Broadcast-Terrestrial), or the like. In addition, the broadcast receiving module may be configured to be suitable for all broadcasting systems that provide broadcast signals as well as the digital broadcasting system. The broadcast signal and / or broadcast related information received through the broadcast receiving module 111 may be stored in a memory.

The mobile communication module transmits and receives radio signals to and from at least one of a base station, an external terminal, and a server on a mobile communication network. Here, the wireless signal may include various types of data according to a voice call signal, a video call signal, or a text / multimedia message transmission / reception.

The wireless Internet module refers to a module for wireless Internet access, and the wireless Internet module can be embedded in the mobile terminal 100 or externally. WLAN (Wi-Fi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access) and the like can be used as wireless Internet technologies.

The short-range communication module is a module for short-range communication. Bluetooth, radio frequency identification (RFID), infrared data association (IrDA), ultra wideband (UWB), ZigBee, and the like can be used as the short distance communication technology.

The GPS (Global Position System) module is a module for acquiring the position of the mobile terminal 100, and receives position information from a plurality of GPS satellites.

The memory may store a program for processing and controlling the microcomputer, and may perform a function for temporarily storing input or output data (e.g., a phone book, a message, a still image, a moving picture, and the like).

The memory may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory), a random access (ROM), electrically erasable programmable read-only memory (EEPROM), programmable read-only memory (PROM), magnetic memory, magnetic disk, optical disk Or a storage medium of at least one type. In addition, the mobile terminal 100 may operate in association with a web storage that performs a storage function of a memory on the Internet.

The microcomputer typically controls the operation of each part to control the overall operation of the mobile terminal 100. For example, voice communication, data communication, video communication, and the like. In addition, the microcomputer may include a multimedia playback module for multimedia playback. The multimedia playback module may be configured as hardware in the microcomputer, or may be composed of software separately from the microcomputer. The microcomputer can perform pattern recognition processing capable of recognizing handwriting input or drawing input performed on the touch screen as characters and images, respectively.

Referring to FIGS. 1 to 4, the main body of the terminal may include a casing forming an outer appearance.

For example, the case is formed by the front case 111 and the rear case 121. Various electronic components are embedded in the space formed by the front case 111 and the rear case 121. The window portion 140 can be coupled to the case, and can be preferably coupled to the front case 111.

The case may be disposed to surround the side surface 140b and / or the back surface 140d of the window part 140 and the side surface 140b of the case and the window part 140 may be spaced apart so that the buffer part 180 is positioned have.

The front case 111 includes a window hole 112b formed to correspond to the display portion 141 and a bezel portion 112b which forms a rim of the window hole 112b and surrounds the side surface 140b of the window portion 140. [ And a seating portion 111b extending from the lower end of the bezel portion 111a and receiving a part of the rear surface 140d of the window portion 140. [

The window hole 112b is opened at the center of the front case 111 so that the display part 141 can be exposed to the outside through the window hole 112b while fixing the position of the display part 141. [ The window hole 112b may be formed to correspond to the size and shape of the display unit 141. [ Preferably, the window hole 112b may have a size smaller than the size of the display unit 141. [

3 and 4) of the window hole 112b and the display unit 141 is disposed under the window hole 112b.

Specifically, the window hole 112b may have a rectangular shape, which is the shape of the display unit 141. [

The bezel portion 111a forms a rim of the window hole 112b and is formed to surround the side surface 140b of the window portion 140. [

Specifically, the bezel 111a may have a shape corresponding to the shape of the rim 140b, 140c of the window 140, and the bezel 111a may be formed between the bezel 111a and the side 140b of the window 140, So that the unit 180 can be spaced a certain distance.

The bezel portion 111a is becoming thinner due to the development of technology and design demands.

The seating portion 111b may extend from the lower end of the bezel portion 111a and may be disposed such that a part of the back surface 140d of the window portion 140 is seated.

Specifically, the seating part 111b may be in the shape of a piece extending in a direction perpendicular to the bezel part 111a, and may support the outer area of the rear surface 140d of the window part 140. [

Further, the front case 111 may have an acoustic hole 114b, a hole 152, and an image hole 115b.

The sound hole 114b is formed to correspond to the sound output unit 114 so that the sound of the mobile terminal 100, for example, a ring tone, music, etc., is emitted to the outside.

The hole 152 provides a passage through which the flexible circuit board 150 connected to the window portion 140 passes through the hole 152 and is electrically connected to the circuit board 170.

And the image hole 115b is formed to correspond to the first image input unit 115. [ And the video hole 115b provides a passage through which an external image passes and is input to the first image input unit 115. [

The window unit 140 may be coupled to the terminal body to cover the display unit 141.

Specifically, the window part 140 may cover one surface of the front case 111 and may be vertically overlapped with the display part 141. [ Further, the window part 140 may be formed of a transparent material so that the image of the display part 141 can be transmitted.

The window unit 140 is formed of a touch screen panel so as to recognize the user's touch, and information (commands, signals, etc.) can be input.

The window part 140 may have an area corresponding to the display part 141 and may be made of a material through which light can be transmitted. An opaque region where light is not transmitted or a light transmittance is very low can be formed in the window portion 140. For example, can be surface-treated such that light can not be transmitted along the edge of the window portion 140.

For example, the window portion 140 may be implemented as a transparent touch screen panel. Specifically, an electrode is formed inside the window 140. The electrode may be formed in a conductive pattern. Charges can be charged to the electrodes, and as the conductors move at close distances, the amount of charge charged can vary.

When a conductor, for example a user's finger, touches the window, the amount of charge charged to the electrode changes, which is like the change in capacitance between the finger and the electrode.

The electrodes of the window portion 140 are electrically connected to a microcomputer, for example, a circuit board 170, which senses a change in the amount of charge. For this electrical connection, the flexible circuit board 150 may pass through the holes 152 to change the connection state with the circuit board 170.

The flexible circuit board 150 extends from one end of the window portion 140. A connection portion 151 is formed at one end of the flexible circuit board 150 and connected to the electrode while the other end of the flexible circuit board 150 is connected to the circuit board 170 by a connector 171. The connection portion 151 may be formed of a metal material to maintain constant stiffness and elasticity.

Meanwhile, it is preferable that the window part 140 is made of a plastic resin material having a certain level of light transmittance.

The shape of the window part 140 is not limited, but it may have a shape corresponding to the shape of the display part 141 and a rectangular plate shape with excellent visibility.

For example, the window portion 140 includes a rear surface 140d disposed adjacent to the display portion 141, a front surface 140a facing the rear surface 140d and a front surface 140a facing the rear surface 140d, 140b and 140c and a side surface 140b connecting the ends 140d and 140d and forming the edges 140b and 140c.

At this time, the case (more specifically, the front case 111) may be disposed so as to surround at least the side surface 140b of the window portion 140. [ More specifically, the side surface 140b of the window part 140 is arranged to surround the bezel part 111a of the front case 111, and the outer area of the rear surface 140d of the window is positioned on the seat part 111b.

The window portion 140 is supported and fixed by the bezel portion 111a and the seating portion 111b so that the bezel portion 111a serves as a cushioning material for protecting the window portion 140 from an external impact of the mobile terminal 100 do.

Of course, the buffer part 180 may be spaced apart between the case and the side surface 140b of the window part 140. [ A space may be formed between the bezel 111a of the front case 111 and the side 140b of the window 140 to locate the buffer 180. [

The edges 140b and 140c of the window portion 140 may include a corner 140c where the plurality of side surfaces 140b and the side surfaces 140b meet and the edge 140c may not be formed.

According to the trend of realizing the wide width of the display unit 141, the window unit 140 should be formed wide on the front surface 140a of the terminal. Particularly, when the user drops off due to carelessness during use of the terminal, damage is concentrated on the corner and the window of the side of the mobile terminal 100. The mobile terminal 100 according to an embodiment of the present invention implements a buffer 180 that can mitigate the impact force concentrated on the corners and sides of the terminal.

The window portion 140 is seated in the front case 111 of the mobile terminal 100. When the mobile terminal 100 is impacted, the window portion 140 (specifically, the bezel portion 111a) And a side surface 140b of the adjacent window portion 140) may be partially broken.

In this case, in order to increase the rigidity of the window part 140, when the window part 140 is formed of another material, optical characteristics may not be satisfied. As a method for solving this problem, a buffering part 180 for protecting the window part 140 from an external impact is disposed on the rims 140b and 140c of the window part 140. FIG.

The buffer part 180 may be disposed at the rims 140b and 140c of the window part 140 to protect the window part 140 from an external impact.

The cushioning portion 180 may have greater ductility and / or elasticity than the window portion 140 and the terminal body. Specifically, the buffer part 180 may include a material that absorbs an impact to the window part 140 when an external impact is applied to the terminal body.

For example, the buffer part 180 may include a synthetic resin material having adhesiveness and viscosity. This is because if the buffer part 180 has a viscosity and an adhesive property, it can be easily formed to have a thin thickness on the rims 140b and 140c of the window part 140.]

More specifically, the buffer part 180 may include a silicone resin or an epoxy resin excellent in water-tightness, corrosion resistance, and insulation. Gradation to tissue may include a buffer unit 180 neunneun silicone or SiO _2.

The buffer part 180 may be formed in a manner of ultraviolet ray or heat curing. It may be cured by ultraviolet light so that the window portion 140 is not deformed by heat.

According to the embodiment, the rim of the window portion (side surface 140b) may be exposed to the outside, and the rear surface 140d of the window portion may be coupled to the case. Also in this case, the buffer part 180 is arranged to surround the rims 140b and 140c of the window part 140, so that the external impact can be absorbed.

The case may be arranged to surround at least the side surface 140b of the window part 140 and the buffer part 180 may be positioned between the case and the side surface 140b of the window part 140. [ That is, a space in which the buffer part 180 is positioned may be formed between the case and the side surface 140b of the window part 140.

Specifically, the buffer part 180 is located at least between the bezel part 111a of the front case 111 and the side surface 140b of the window part 140, and is attached to the side surface 140b or the edge 140c of the case So that the external impact is prevented from being transmitted to the window portion 140.

The corner 140c of the window 140 receives a larger amount of impact at the time of dropping the mobile terminal 100 than the side 140b of the window 140. Thus, (140c) of the window portion (140) than the first portion (140b). Further, in another embodiment, the buffer part 180 may be disposed only at the corner 140c of the window part 140. [

Although the thickness d of the buffer part 180 is not limited, it is preferable that the buffer part 180 has a thickness sufficient to absorb an external impact. Specifically, the thickness of the buffer part 180 may be 0.05 mm to 0.1 mm.

The buffer 180 may further include a buffer bubble (not shown) disposed in the buffer 180. The buffer bubble may be a plurality of bubbles filled with air. The buffer bubble can absorb the impact applied to the buffer 180 more effectively.

FIG. 5A is an enlarged view of a corner portion of the mobile terminal of FIG. 1. FIG.

5A, the corner 140c of the window part 140 is formed to be round and the corner of the case may be formed as a loungge corresponding to the corner 140c of the window part 140. As shown in FIG. The radius of curvature R1 of the corner of the case is formed to be larger than the radius of curvature R2 of the corner 140c of the window part 140 so that a gap between the corner of the case 140 and the corner 140c of the window part 140 The portion 180 can be positioned.

Specifically, the corner 140c of the window 140 and the bezel 111a of the front case 111 may be rounded to correspond to the edge 140c of the window 140. The curvature radius R1 of the bezel 111a of the front case 111 is formed to be larger than the curvature radius R2 of the corner 140c of the window portion 140 and the bezel portion 111a of the front case 111 The center O of the curvature radius R1 of the front case 111 and the center O of the curvature radius R2 of the corner 140c of the window portion 140 are located at the same position, The buffer part 180 may be positioned between the edge 140a of the window part 140 and the edge 140c of the window part 140. [

FIG. 5B is a view showing another embodiment in which the corner portion of the mobile terminal of FIG. 1 is enlarged.

5B, a corner 140c of the window 140 is rounded, and a corner of the case may be formed to correspond to a corner 140c of the window 140. As shown in FIG. The curvature radius R1 of the corner of the case may be smaller than the curvature radius R2 of the corner 140c of the window portion 140. [

The center O1 of the curvature radius R1 of the case edge can be located at a position different from the center O2 of the curvature radius R2 of the corner 140c of the window portion 140. [ For example, the center O1 of the curvature radius R1 of the corner of the case is smaller than the center O2 of the curvature radius R2 of the corner 140c of the window portion 140 at the corner 140c of the window portion 140, As shown in FIG. Thus, the buffer part 180 can be positioned between the edge of the case and the edge 140c of the window part 140. [

Specifically, the corner 140c of the window 140 and the bezel 111a of the front case 111 may be rounded to correspond to the edge 140c of the window 140. The curvature radius R1 of the bezel 111a of the front case 111 is formed to be smaller than the curvature radius R2 of the corner 140c of the window 140 and the curvature radius R1 of the bezel 111a of the front case 111 The center O1 of the curvature radius R1 of the window portion 140 is positioned adjacent to the corner 140c of the window portion 140 from the center O2 of the radius of curvature R2 of the corner 140c of the window portion 140 The buffer part 180 can be positioned between the bezel 111a of the front case 111 and the edge 140c of the window part 140. [ The distance between the bezel 111a of the front case 111 and the edge 140c of the window 140 is smaller than the distance between the bezel 111a of the front case 111 and the side 140b of the window 140, The buffer part 180 positioned at the corner 140c of the window part 140 can be arranged to be thicker than the buffer part 180 positioned at the side surface 140b of the window part 140 have.

FIG. 6 is a reference view showing a falling state of a mobile terminal according to an embodiment of the present invention. Referring to FIG.

Referring to FIG. 6, the window 140 is broadly formed on the front surface 140a of the terminal according to the trend of realizing the wide width of the display unit 141. FIG.

Particularly, when the user drops his / her carelessness during use of the terminal, a problem occurs that the damage is concentrated on the window portion 140 adjacent to the corner of the terminal.

The embodiment can solve the impact force concentrated on the corner of the terminal through the shock absorbing part 180 absorbing the impact.

The cushioning portion 180 of the embodiment is disposed between the rims 140b and 140c of the window portion 140 and the case so that the external impact is primarily absorbed from the case and secondarily is absorbed by the cushioning portion 180 Absorbing effect.

7 is a partial cross-sectional view of a mobile terminal according to another embodiment.

Referring to FIG. 7A, the embodiment of FIG. 7A differs from the embodiment of FIG. 4, the rims 140b and 140c of the window portion 140, and the cross-sectional shape of the buffer portion 180.

Sectional shapes of the rims 140b and 140c of the window part 140 may protrude to the outside of the window part 140 at the central part. Specifically, the cross-sectional shapes of the rims 140b and 140c of the window portion 140 may have a semicircular shape.

Of course, the cross-sectional shape of the buffer part 180 may also have a cross-sectional shape corresponding to the cross-sectional shape of the rims 140b and 140c of the window part 140. [

Referring to FIG. 7B, the embodiment of FIG. 7B differs from the embodiment of FIG. 4 and the cross-sectional shape of the buffer portion 180.

The cross-sectional shape of the buffer part 180 may protrude to the outside of the window part 140 at the central part. Specifically, the cross-sectional shape of the buffer part 180 may have a semicircular shape.

If the buffering portion 180 has a semicircular shape, the shock from the outside can be absorbed more effectively.

FIG. 8 is a perspective view of a mobile terminal according to another embodiment of the present invention, FIG. 9 is an exploded perspective view of the mobile terminal of FIG. 8, and FIG. 10 is a partial cross-sectional view of the mobile terminal taken along line B-B of FIG.

Referring to FIGS. 8 to 10, there is a difference between the mobile terminal 100A of the embodiment and the configuration of the rear case 121 of the embodiment of FIG.

The rear case 121 may include a cover buffer 121b-2 for covering an outer side of the bezel 111a and a rear cover 121b-1 for forming an outer appearance of a back surface of the terminal body.

Specifically, the rear case 121 may include a first rear case 121a and a second rear case 121b, and the second rear case 121b may include a rear surface and a side surface of the first rear case 121a It can be wrapped.

The second rear case 121b includes a cover buffer 121b-2 for enclosing the outside of the bezel 111a of the front case 111 and a rear cover 121b-2 for covering the rear surface of the first rear case 121a. 1).

The cover buffer part 121b-2 may be disposed so as to surround at least the bezel part 111a of the front case 111. The cover buffer 121b-2 may be disposed to surround the bezel 111a of the case 111 and the side surfaces of the first rear case 121a.

The cover buffer portion 121b-2 is formed of a buffer material, so that it can absorb an impact from the outside. Therefore, the impact from the outside can be absorbed in the order of the cover buffer 121b-2, the bezel 111a and the buffer 180, thereby effectively protecting the edge 140c of the window 140 .

The cover bumper 121b-2 is made of a rubber material and the back cover 121b-1 is made of a synthetic resin material. The cover bumper 121b-2 is bonded to the back cover 121b- .

The rear case 121 may further include a front cover 121c that is rotatably coupled to the rear case 121 to selectively shield the front surface of the window 140. [

Specifically, the front cover 121c may be rotatably coupled to one end of the second rear case 121b.

The front cover 121c may be made of a leather material and may at least have a size to shield the window portion 140. [ Of course, the front cover 121c can be detachably attached to the second rear case 121b.

11 is a partial cross-sectional view of a mobile terminal according to another embodiment.

Referring to FIG. 11, the embodiment of FIG. 11 differs from the embodiment of FIG. 10 in the shape of the front case 111.

The embodiment is a configuration in which the bezel 111a is omitted in the embodiment of FIG.

The buffer part 180 may be disposed at the edges 140b and 140c of the window part 140 and the rear case 121 may be disposed to surround the buffer part 180. [

More specifically, the buffer part 180 is disposed on the rims 140b and 140c of the window part 140 and the cover buffer part 121b-2 of the second rear case 121b is arranged so as to surround the buffer part 180 .

The cover buffer 121b-2 may be coupled to the back cover 121b-1 forming the back surface of the terminal body.

At this time, the front case 111 may be omitted from the bezel 111a. Therefore, only the back surface 140d of the window part 140 is supported by the front case 111, and the buffer part 180 and the cover buffer part 121b-2 come in contact with each other.

The bezel 111a of the front case 111 is omitted and the size of the mobile terminal can be reduced while the buffer part 180 and the cover buffer part 121b- And the impact applied to the impact resistance is minimized.

12 is a view showing a manufacturing method of the window part 140 and the buffer part 180 according to an embodiment of the present invention.

Referring to FIG. 12, the window portion 140 is cut and processed into a plurality of individual windows from a single mother sheet (1000). The window portion 140 is prepared.

The buffer part 180 is prepared. The buffering portion 180 may be prepared in the nozzle 200 and / or the storage tank 500.

Thereafter, the buffer part 180 is deposited on the rims 140b and 140c of the window part 140.

The buffering part 180 is deposited at a predetermined speed in the nozzle 200 filled with the buffer part 180 and the nozzle 200 is moved relative to the window part 140 .

Specifically, in the window 140, the center of the front surface 140a and the rear surface 140d is fixed to the rotary jig 300. [

It is preferable that the portion of the rotary jig 300 which is in contact with the window portion 140 is made of rubber so as to prevent the window portion 140 from being damaged.

The nozzle 200 is filled with the buffer 180 to discharge a certain amount of the buffer 180 to the outside.

The cushioning portion 180 injected from the nozzle 200 is deposited at the edges 140b and 140c of the window portion 140 to a predetermined thickness. At this time, the rotation jig 300 rotates the window part 140. The rotary jig 300 rotates the window part 140 so that the nozzle 200 and the window part 140 are relatively moved.

As a result, the buffer part 180 having a desired thickness can be formed on the rims 140b and 140c of the window part 140.

Then, the window part 140 to which the buffer part 180 is adhered is coupled to the terminal body.

The manufacturing method described above can be used when the thickness of the buffer part 180 located at the rims 140b and 140c of the window part 140 is constant.

13 is a view showing a manufacturing method of the window part 140 and the buffer part 180 according to another embodiment.

Referring to FIG. 13, the window portion 140 is cut and processed into a plurality of individual windows 140 in a single sheet.

The step of depositing the buffer 180 may include dipping the edge 140c of the window 140 into the buffer 180.

Specifically, the window 140 is fixed to the fixing jig 400 at the center of the front surface 140a and the rear surface 140d.

The buffer part 180 injected from the nozzle 200 is deposited on the side surface 140b of the window part 140 to a predetermined thickness.

Then, the edge of the window part 140 is immersed in the buffer part 180 stored in the buffer part 180 of the buffer part 180.

Therefore, there is a difference in thickness between the side surface 140b of the window part 140 and the buffer part 180 located at the corner.

Figs. 14 to 19 are diagrams showing a step of preparing the window portion of the embodiment. Fig.

Hereinafter, a process of preparing the window portion 140 before the buffering portion 180 is coupled will be described.

Referring to FIG. 14, first, a single mother sheet 1000 is prepared. A suitable material is selected for the mother sheet (1000) in consideration of the strength, transparency, and workability of the window part (140). For example, the mother sheet 1000 may be made of a tempered glass material.

And, the mother sheet (1000) makes it possible to obtain optimal workability and strength through chemical strengthening or physical strengthening.

Referring to FIG. 15, a touch sensor layer is deposited on the mother sheet 1000 to correspond to the size and position of each window 140.

The touch sensor layer may be formed by depositing a transparent electrode (ITO) or the like electrically connected to the touch sensor and the touch sensor by a sputtering process.

Referring to FIG. 16, the mother sheet 1000 is then cut to fit the size and shape of each window 140. For example, the mother sheet 1000 is cut horizontally and vertically along an imaginary cutting line C to form a rectangular window portion 140.

Here, the cutting method may be one of laser cutting, mechanical cutting, wet etching, water jet, dry etching, and plasma cutting.

Referring to Fig. 17, a mother sheet 1000 shows a cut window portion 140,

Referring to FIG. 18, the cut window portion 140 is post-processed.

The post-finishing work is a process of softening the edge of the cut window 140 by polishing. Further, the post-finishing work may be a work for rounding the corner 140c of the cut window portion 140. [

Referring to FIG. 19, the flexible circuit board 150 and the connection part 151 are bonded to the window part 140. The flexible circuit board 150 converts the touch input inputted to the touch sensor into an electrical signal and transmits the electrical signal to the circuit board 170 of the main body of the mobile terminal 100 connected through the connection unit 151.

The prepared window part 140 is coupled to the buffer part 180 through the processes of FIGS.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It should be understood that various modifications may be made by those skilled in the art without departing from the spirit and scope of the present invention.

Claims

A terminal body having a display unit mounted on one surface thereof;
A window portion coupled to the terminal body to cover the display portion;
And a cushioning portion disposed at an edge of the window portion to protect the window portion from an external impact,
The edge of the window portion
A plurality of side surfaces;
And edges that border the sides,
The buffering portion
At least at the corner, and has greater ductility than the window portion and the terminal body.

The method according to claim 1,
The buffering portion
And a second side surface,
Wherein the buffer is disposed thicker at the corner than at the side.

The method according to claim 1,
Wherein the terminal body includes a casing forming an outer appearance,
Wherein the case is disposed so as to surround at least a side surface of the window portion.

The method of claim 3,
And a side surface of the case and the window portion are spaced apart from each other such that the buffer portion is positioned.

The method of claim 3,
Wherein an edge of the window portion and an edge of the case are rounded,
Wherein the curvature radius R1 of the case edge is larger than the curvature radius R2 of the corner of the window portion.

The method of claim 3,
Wherein an edge of the window portion and an edge of the case are rounded,
Wherein the curvature radius R1 of the case edge is smaller than the curvature radius R2 of the corner of the window portion.

The method according to claim 6,
Wherein the center O1 of the curvature radius R1 of the case edge is located at a position different from the center O2 of the curvature radius R2 of the corner of the window portion.

The method of claim 3,
Wherein a cross-sectional shape of a rim of the window portion is a central portion protruding outside the window.

The method of claim 3,
Wherein a cross section of the cushioning portion has a central portion protruding outside the window portion.

The method of claim 3,
The case includes a front case and a rear case,
The front case includes:
A window hole formed to correspond to the display unit;
A bezel portion forming a rim of the window hole and surrounding a side surface of the window portion;
And a seating portion extending from a lower end of the bezel portion and receiving a part of a back surface of the window portion,
Wherein the buffer portion is positioned between the bezel portion and the side surface of the window portion.

11. The method of claim 10,
In the rear case,
A cover buffer surrounding the outside of the bezel,
And a back cover which forms an outer surface of the back surface of the terminal body.

12. The method of claim 11,
Wherein the cover buffer is made of a rubber material, the back cover is made of synthetic resin,
Wherein the cover buffer is formed by a thermocompression process with the back cover.

12. The method of claim 11,
In the rear case,
And a front cover rotatably coupled to the rear case to selectively shield the front surface of the window portion.

The method of claim 3,
The case includes a front case and a rear case,
In the rear case,
A cover buffer surrounding the outer surface of the buffer portion,
And a back cover which forms an outer surface of the back surface of the terminal body.

The method according to claim 1,
The buffering portion
Adhesive property and viscosity.

16. The method of claim 15,
Wherein the buffer includes a synthetic resin material.

17. The method of claim 16,
Wherein the thickness of the cushioning portion is 0.05 mm to 0.1 mm.

18. The method of claim 17,
Wherein the buffering portion is cured by ultraviolet rays.

The method according to claim 1,
Wherein the window portion includes a transparent touch screen panel.

Preparing a window portion;
Preparing a buffering portion; And
Wherein the buffer portion is deposited on the rim of the window portion,
The step of depositing the buffer portion includes:
Wherein the buffer is injected at a predetermined speed in a nozzle filled with a buffer, and the nozzle is moved relative to the window.

21. The method of claim 20,
The step of depositing the buffer portion includes:
Wherein the edge of the window portion is immersed in the buffer portion.