KR20150057708A - Mobile terminal - Google Patents

Abstract

The present invention relates to a mobile terminal, and in accordance with an aspect of the present invention, there is provided a mobile terminal including: a display; A window surrounding the first side of the display portion; A first member surrounding the periphery of the window to mitigate an impact applied to the window, the first member being located in a non-display area of the display unit; And a second member surrounding the second surface opposite to the first surface of the display portion and contacting the first member and mitigating an impact applied to at least one of the display portion and the window A mobile terminal including a rear cover is provided.

Description

[0001] MOBILE TERMINAL [0002]

The present invention relates to a mobile terminal.

The terminal can move And may be divided into a mobile / portable terminal and a stationary terminal depending on whether the mobile terminal is a mobile terminal or a mobile terminal. The mobile terminal can be divided into a handheld terminal and a vehicle mount terminal according to whether the user can directly carry the mobile terminal.

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.

Disclosure of Invention Technical Problem [8] The present invention has been proposed in order to meet the above-mentioned needs, and it is an object of the present invention to provide a mobile terminal capable of dispersing and reducing external shocks.

It is another object of the present invention to provide a mobile terminal capable of reducing the impact of an edge portion.

It is another object of the present invention to provide a mobile terminal capable of dispersing an impact such that a direct impact is not applied to a display unit or a window.

Another object of the present invention is to provide a mobile terminal capable of producing a beautiful appearance, minimizing the weight, and reinforcing the strength.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not restrictive of the invention, unless further departing from the spirit and scope of the invention as defined by the appended claims. It will be possible.

According to an aspect of the present invention, there is provided a display device including a display unit, a window surrounding the first surface of the display unit, and a display unit surrounding the periphery of the window unit to mitigate an impact applied to the window unit, A first member positioned in the first chamber; And a second member surrounding the second surface opposite to the first surface of the display portion and contacting the first member and mitigating an impact applied to at least one of the display portion and the window A mobile terminal including a rear cover is provided.

The effect of the mobile terminal according to the present invention will be described below.

According to at least one of the embodiments of the present invention, the external impact can be dispersed and reduced, and in particular, the impact of the corner portion can be reduced.

In addition, the impact can be dispersed to other areas so that no direct impact is applied to the display part or the window, and the external impact can be stepwise reduced.

In addition, a beautiful appearance can be produced, the weight of the mobile terminal can be minimized, and the strength can be reinforced.

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

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.
2 is a front perspective view of a mobile terminal according to an embodiment of the present invention.
3 is a rear perspective view of a mobile terminal according to an embodiment of the present invention.
Fig. 4 is a cross-sectional view of the main part taken along the line A-A 'in Fig. 1, showing the first embodiment of the rear cover.
5 is a cross-sectional view of the main portion taken along the line A-A 'in Fig. 1, showing a second embodiment of the rear cover.
6 is a conceptual diagram for explaining a state of impact dispersion of a mobile terminal according to an embodiment of the present invention.
7 is a perspective view showing a third embodiment of a back cover constituting a mobile terminal according to the present invention.
8 is a perspective view showing a fourth embodiment of the rear cover constituting the mobile terminal according to the present invention.
9 is a plan view showing a case cover constituting a mobile terminal according to the present invention.
10 and 11 are cross-sectional views of main portions of the case cover shown in Fig.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Terms including ordinals, such as first, second, etc., may be used to describe various elements, but the elements are not limited to these terms. The terms are used only for the purpose of distinguishing one component from another.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

In the present application, the terms "comprises", "having", and the like are used to specify that a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

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.

Hereinafter, a mobile terminal according to an exemplary embodiment of the present invention will be described in detail with reference to the drawings. The same or corresponding components are denoted by the same reference numerals regardless of the reference numerals, and redundant explanations thereof are omitted.

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

However, it will be understood by those skilled in the art that the configuration according to the embodiments described herein may be applied to a fixed terminal such as a digital TV, a desktop computer, and the like, unless the configuration is applicable only to a mobile terminal.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention. The mobile terminal 100 includes a wireless communication unit 110, an audio / video input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory 160, A controller 170, a controller 180, a power supply 190, and the like. The components shown in FIG. 1 are not essential, and a mobile terminal having more or fewer components may be implemented.

Hereinafter, the components will be described in order.

The wireless communication unit 110 may include one or more modules for enabling wireless communication between the mobile terminal 100 and the wireless communication system or between the mobile terminal 100 and the network in which the mobile terminal 100 is located. For example, the wireless communication unit 110 may include a broadcast receiving module 111, a mobile communication module 112, a wireless Internet module 113, a short range communication module 114, and a location information module 115 .

The broadcast receiving module 111 receives broadcast signals and / or broadcast-related information from an external broadcast management server through a broadcast channel. The broadcast channel may include a satellite channel and a terrestrial channel. Two or more broadcast receiving modules may be provided to the mobile terminal 100 for simultaneous broadcast reception or broadcast channel switching for at least two broadcast channels.

The broadcast management server may refer to a server for generating and transmitting broadcast signals and / or broadcast related information, or a server for receiving broadcast signals and / or broadcast related information generated by the broadcast management server and transmitting the generated broadcast signals and / or broadcast related information. The broadcast signal may include a TV broadcast signal, a radio broadcast signal, a data broadcast signal, and a broadcast signal in which a data broadcast signal is combined with a TV broadcast signal or a radio broadcast signal.

The broadcast-related information means information related to a broadcast channel, a broadcast program, or a broadcast service provider. The broadcast-related information may also be provided through a mobile communication network. In this case, it may be received by the mobile communication module 112.

The broadcast-related information may exist in various forms. For example, an EPG (Electronic Program Guide) of DMB (Digital Multimedia Broadcasting) or an ESG (Electronic Service Guide) of Digital Video Broadcast-Handheld (DVB-H).

For example, the broadcast receiving module 111 may be a Digital Multimedia Broadcasting-Terrestrial (DMB-T), a Digital Multimedia Broadcasting-Satellite (DMB-S), a Media Forward Link Only (Mobile Broadcasting Business Management System), ISDB-T (Integrated Services Digital Broadcasting (ISDB-T)), Digital Multimedia Broadcasting (MBMS) Digital Broadcast-Terrestrial) or the like. Of course, the broadcast receiving module 111 may be adapted to other broadcasting systems as well as the digital broadcasting system described above.

The broadcast signal and / or broadcast related information received through the broadcast receiving module 111 may be stored in the memory 160.

The mobile communication module 112 may be coupled to a base station, an external terminal, or a server on a mobile communication network, such as, but not limited to, Global Transmission for Mobile communications (GSM), Code Division Multiple Access (CDMA), Wideband CDMA And wireless signals. The wireless signal may include various types of data depending on a voice call signal, a video call signal or a text / multimedia message transmission / reception.

The wireless Internet module 113 is a module for wireless Internet access, and may be built in or externally attached to the mobile terminal 100. Wireless Internet technologies include WLAN (Wi-Fi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access), GSM, CDMA, WCDMA, LTE Evolution (but not limited to) may be used.

The wireless Internet module 113, which performs wireless Internet access through the mobile communication network, is connected to the mobile communication module 110 through the mobile communication network, for example, from the viewpoint that the wireless Internet access by Wibro, HSDPA, GSM, CDMA, WCDMA, LTE, (112).

The short-range communication module 114 refers to a module for short-range communication. Bluetooth, Radio Frequency Identification (RFID), infrared data association (IrDA), Ultra Wideband (UWB), ZigBee, and the like can be used as a short range communication technology.

The position information module 115 is a module for obtaining the position of the mobile terminal, and a representative example thereof is a Global Position System (GPS) module. According to the current technology, the GPS module 115 calculates distance information and accurate time information from three or more satellites, and then applies trigonometry to the calculated information to obtain a three-dimensional string of latitude, longitude, The location information can be accurately calculated. At present, a method of calculating position and time information using three satellites and correcting an error of the calculated position and time information using another satellite is widely used. In addition, the GPS module 115 can calculate speed information by continuously calculating the current position in real time.

Referring to FIG. 1, an A / V (Audio / Video) input unit 120 is for inputting an audio signal or a video signal, and may include a camera 121 and a microphone 122. The camera 121 processes image frames such as still images or moving images obtained by the image sensor in the video communication mode or the photographing mode. The processed image frame can be displayed on the display unit 151. [

The image frame processed by the camera 121 may be stored in the memory 160 or transmitted to the outside through the wireless communication unit 110. [ Two or more cameras 121 may be provided depending on the use environment.

The microphone 122 receives an external sound signal through a microphone in a communication mode, a recording mode, a voice recognition mode, or the like, and processes it as electrical voice data. The processed voice data can be converted into a form that can be transmitted to the mobile communication base station through the mobile communication module 112 when the voice data is in the call mode, and output. Various noise reduction algorithms may be implemented in the microphone 122 to remove noise generated in receiving an external sound signal.

The user input unit 130 generates input data for a user to control the operation of the terminal. The user input unit 130 may include a button 136 located on the front, rear, or side of the mobile terminal 100, and a touch sensor (static / static) 137. Although not shown, ), A dome switch, a jog wheel, a jog switch, and the like.

The sensing unit 140 senses the current state of the mobile terminal 100 such as the open / close state of the mobile terminal 100, the position of the mobile terminal 100, the presence or absence of user contact, the orientation of the mobile terminal, And generates a sensing signal for controlling the operation of the mobile terminal 100. For example, when the mobile terminal 100 is in the form of a slide phone, it is possible to sense whether the slide phone is opened or closed. It is also possible to sense whether the power supply unit 190 is powered on, whether the interface unit 170 is connected to an external device, and the like. Meanwhile, the sensing unit 140 may include a proximity sensor 141. (The proximity sensor will be described later).

The output unit 150 is for generating output related to the visual, auditory or tactile sense and includes a display unit 151, an audio output module 152, an alarm unit 153, and a haptic module 154 .

The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, when the mobile terminal is in the call mode, a UI (User Interface) or a GUI (Graphic User Interface) associated with a call is displayed. When the mobile terminal 100 is in the video communication mode or the photographing mode, the photographed and / or received video or UI and GUI are displayed.

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

Some of these displays may be transparent or light transmissive so that they can be seen through. This may be referred to as a transparent display, and a typical example of the transparent display is TOLED (transparent OLED) or the like. The rear structure of the display unit 151 may also be of a light transmission type. With this structure, the user can see an object located behind the terminal body through the area occupied by the display unit 151 of the terminal body.

There may be two or more display units 151 according to the embodiment of the mobile terminal 100. For example, in the mobile terminal 100, a plurality of display portions may be spaced apart from one another or may be disposed integrally with each other, or may be disposed on different surfaces.

In the case where the display unit 151 and the touch sensor 137 have a mutual layer structure or are integrally formed (hereinafter referred to as a 'touch screen'), the display unit 151 may be used as an input device . The touch sensor 137 may be stacked on the display unit 151 to form a layer structure when the touch sensor 137 has a form of a touch film, a touch sheet, a touch pad, or the like. And may be integrally formed.

The touch sensor 137 may be configured to convert a change in a pressure applied to a specific part of the display part 151 or a capacitance generated in a specific part of the display part 151 into an electrical input signal. The touch sensor 137 can be configured to detect not only the position and area to be touched but also the pressure at the time of touch.

If there is a touch input to the touch sensor 137, the corresponding signal (s) is sent to the touch controller (not shown). The touch controller processes the signal (s) and transmits the corresponding data to the controller 180. Thus, the control unit 180 can know which area of the display unit 151 is touched or the like.

The proximity sensor 141 may be disposed in an inner region of the mobile terminal or in the vicinity of the touch screen, which is enclosed by the touch screen. The proximity sensor refers to a sensor that detects the presence or absence of an object approaching a predetermined detection surface or a nearby object without mechanical contact using the force of an electromagnetic field or infrared rays. The proximity sensor has a longer life span than the contact sensor and its utilization is also high.

Examples of the proximity sensor include a transmission type photoelectric sensor, a direct reflection type photoelectric sensor, a mirror reflection type photoelectric sensor, a high frequency oscillation type proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor. And to detect the proximity of the pointer by the change of the electric field along the proximity of the pointer when the touch screen is electrostatic. In this case, the touch screen (touch sensor) may be classified as a proximity sensor.

Hereinafter, for convenience of explanation, the act of recognizing that the pointer is positioned on the touch screen while the pointer is not in contact with the touch screen is referred to as "proximity touch" The act of actually contacting the pointer on the touch screen may be referred to as "contact touch. &Quot; The location where the pointer is proximately touched on the touch screen may refer to a position where the pointer corresponds vertically to the touch screen when the pointer is touched.

The proximity sensor detects a proximity touch and a proximity touch pattern (e.g., a proximity touch distance, a proximity touch direction, a proximity touch speed, a proximity touch time, a proximity touch position, a proximity touch movement state, and the like). Information corresponding to the detected proximity touch operation and the proximity touch pattern may be output on the touch screen.

The audio output module 152 may output audio data received from the wireless communication unit 110 or stored in the memory 160 in a call signal reception mode, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, The sound output module 152 also outputs sound signals related to functions (e.g., call signal reception sound, message reception sound, etc.) performed in the mobile terminal 100. [ The audio output module 152 may include a receiver, a speaker, a buzzer, and the like.

The alarm unit 153 outputs a signal for notifying the occurrence of an event of the mobile terminal 100. Examples of events that occur in the mobile terminal include call signal reception, message reception, key signal input, touch input, and the like. The alarm unit 153 may output a signal for notifying the occurrence of an event in a form other than the video signal or the audio signal, for example, vibration. In this case, the display unit 151 and the sound output module 152 may be a type of the alarm unit 153. The display unit 151 and the sound output module 152 may be connected to the display unit 151 or the sound output module 152, .

The haptic module 154 generates various tactile effects that the user can feel. A typical example of the haptic effect generated by the haptic module 154 is vibration. The intensity and pattern of the vibration generated by the haptic module 154 are controllable. For example, different vibrations may be synthesized and output or sequentially output.

In addition to the vibration, the haptic module 154 may include a pin arrangement vertically moving with respect to the contact skin surface, a spraying force or suction force of the air through the injection port or the suction port, a touch on the skin surface, contact of an electrode, And various tactile effects such as an effect of reproducing a cold sensation using an endothermic or exothermic element can be generated.

The haptic module 154 can be implemented not only to transmit the tactile effect through the direct contact but also to allow the user to feel the tactile effect through the muscular sensation of the finger or arm. At least two haptic modules 154 may be provided according to the configuration of the mobile terminal 100.

The memory unit 160 may store a program for processing and controlling the control unit 180 and temporarily store the input / output data (e.g., telephone directory, message, audio, For example. The memory unit 160 may store the frequency of use of each of the data (for example, each telephone number, each message, and frequency of use for each multimedia).

In addition, the memory unit 160 may store data on vibration and sound of various patterns output when the touch is input on the touch screen.

The memory 160 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory), a RAM (Random Access Memory), SRAM (Static Random Access Memory), ROM (Read Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM A disk, and / or an optical disk. The mobile terminal 100 may operate in association with a web storage that performs a storage function of the memory 160 on the Internet.

The interface unit 170 serves as a path for communication with all external devices connected to the mobile terminal 100. The interface unit 170 receives data from an external device or supplies power to each component in the mobile terminal 100 or transmits data to the external device. For example, a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, a port for connecting a device having an identification module, an audio I / O port, A video input / output (I / O) port, an earphone port, and the like may be included in the interface unit 170.

The identification module is a chip for storing various information for authenticating the use right of the mobile terminal 100 and includes a user identification module (UIM), a subscriber identity module (SIM), a general user authentication module A Universal Subscriber Identity Module (USIM), and the like. Devices with identification modules (hereinafter referred to as "identification devices") can be manufactured in a smart card format. Accordingly, the identification device can be connected to the terminal 100 through the port.

When the mobile terminal 100 is connected to an external cradle, the interface unit may be a path through which power from the cradle is supplied to the mobile terminal 100, or various command signals input by the user to the cradle may be transmitted It can be a passage to be transmitted to the terminal. The various command signals or the power source input from the cradle may be operated as a signal for recognizing that the mobile terminal is correctly mounted on the cradle.

The controller 180 typically controls the overall operation of the mobile terminal. For example, voice communication, data communication, video communication, and the like. The control unit 180 may include a multimedia module 181 for multimedia playback. The multimedia module 181 may be implemented in the control unit 180 or may be implemented separately from the control unit 180. [

The controller 180 may perform a pattern recognition process for recognizing handwriting input or drawing input performed on the touch screen as characters and images, respectively.

The power supply unit 190 receives external power and internal power under the control of the controller 180 and supplies power necessary for operation of the respective components. The power supply unit 190 may include, for example, a battery, a connection port, a power supply control unit, and a charge monitoring unit.

The battery may be an internal battery configured to be chargeable, and may be detachably coupled to the terminal body for charging or the like. The connection port may be configured as an example of an interface 170 through which an external charger for supplying power for charging the battery is electrically connected.

The various embodiments described herein may be embodied in a recording medium readable by a computer or similar device using, for example, software, hardware, or a combination thereof.

According to a hardware implementation, the embodiments described herein may be implemented as application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays May be implemented using at least one of a processor, controllers, micro-controllers, microprocessors, and other electronic units for performing other functions. In some cases, The embodiments described may be implemented by the control unit 180 itself.

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

FIG. 2 is a perspective view of a mobile terminal according to an embodiment of the present invention, and FIG. 3 is a rear perspective view of the mobile terminal shown in FIG. 2. Referring to FIG.

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

The body of the mobile terminal 100 includes a case 101, 102 which forms an appearance. In this embodiment, the case may be divided into a front case 101 and a rear case 102. [ A variety of electronic components are embedded in the space formed between the front case 101 and the rear case 102.

In some cases, electronic components may be mounted on the surface of the rear case 102 as well. Electronic components mounted on the surface of the rear case 102 include a battery, a USIM card, a memory card, and the like which are detachable by the user. At this time, the rear case 102 may further include a rear cover 103 for covering the surface thereof. When the rear cover 103 is removed, the surface of the rear case 102 is exposed.

As shown in FIG. 3, when the rear cover 103 is coupled, only a side surface of the rear case 102 may be exposed. When the size of the rear cover 103 is reduced, Some may also be exposed. When the rear cover 103 covers the entire rear surface of the rear case 102, an opening 103 '(see FIG. 4) for exposing the camera 121' or the sound output module 152 ' .

The cases 101, 102, and 103 may be formed by injection molding synthetic resin or may be formed of a metal material such as stainless steel (STS) or titanium (Ti).

The terminal cases 101 and 102 are provided with a display unit 151, an audio output module 152, a camera 121 (hereinafter also referred to as a 'front camera'), user input units 130/131 and 132, a microphone 122, ) May be disposed.

The display unit 151 occupies most of the main surface of the front case 101. A sound output module 152 and a camera 121 are disposed in an area adjacent to one end of both ends of the display unit 151 and a user input unit 131 and a microphone 122 are disposed in an area adjacent to the other end. The user input unit 132 and the interface 170 may be disposed on the side surfaces of the front case 101 and the rear case 102. [

The user input unit 130 is operated to receive a command for controlling the operation of the mobile terminal 100 and may include a plurality of operation units 131, 132, and 133. The operation units 131, 132, 133, and 134 may also be collectively referred to as a manipulating portion.

The contents inputted by the first or second operation unit 131 or 132 may be variously set. For example, the first operation unit 131 receives a command such as start, end, scroll, and the like, and the second operation unit 132 inputs a command such as the adjustment of the sound output from the sound output module 152 And the third operation unit 133 can receive commands such as activation / deactivation of the touch recognition mode of the display unit 151 and the like. On the other hand, the fourth operation unit 134 may be disposed on the back surface of the mobile terminal. Also, the fourth operation unit 134 may receive a power command or an audio size control command.

The operation units 131, 132, 133, and 134 may be a button type that the user recognizes when the user presses the button. In addition to the display unit 151, So that a user's command can be inputted only by the user's touch.

Referring to FIG. 3, a camera 121 '(hereinafter also referred to as a rear camera) may be additionally mounted on the rear surface of the terminal body, that is, the rear case 102. The camera 121 'may have a photographing direction substantially opposite to the camera 121 (see FIG. 2), and may be a camera having the same or different pixels as the camera 121.

For example, the camera 121 may have a low pixel so that the face of the user can be photographed and transmitted to the other party in case of a video call or the like, and the camera 121 ' It is preferable to have a large number of pixels. The cameras 121 and 121 'may be installed in the terminal body such that they can be rotated or pop-up.

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

An acoustic output module 152 'may be additionally disposed on the rear side of the terminal body. The sound output module 152 'on the rear side of the body may implement the stereo function together with the sound output module 152 (see FIG. 2) on the front side of the body, and may be used for the implementation of the speakerphone mode in a call.

In addition to the antenna for talking and the like, a broadcast signal reception antenna 116 may be additionally disposed on the side of the terminal body. The antenna 116, which forms part of the broadcast receiving module 111 (see FIG. 1), can be installed to be able to be drawn out from the terminal body.

The rear cover 103 covers the surface of the rear case 102 so that the battery, the USIM card, the memory card, and the like mounted on the rear case 102 are not separated from the rear case 102, Thereby protecting the external component. A waterproof structure (not shown) for sealing the rear case 102 and the rear cover 103 when the rear case 102 and the rear cover 103 are coupled to each other to prevent water from being injected into the external components.

Meanwhile, the rear cover 103 may be integrally formed with the rear case 102, and the rear cover 103 may be detachably mounted to the rear case 102. In this document, the term 'rear cover 103' should be understood to refer to a case constituting the rear surface of the mobile terminal 100 exposed to the outside.

4 is a cross-sectional view of the main part taken along the line A-A 'in Fig. 1, showing the first embodiment of the rear cover 103. Fig.

3 and 4, the mobile terminal 100 according to an embodiment of the present invention includes a display unit 151, a window 210 surrounding the first surface 151a of the display unit 151, A resin layer 220 surrounding the periphery of the window 210 and a rear cover 103 surrounding the second surface 151b opposite to the first surface 151a of the display unit 151 .

The window 210 is formed of glass, and the window 210 may have a substantially rectangular shape when viewed from the front of the mobile terminal 100. The window 210 functions to protect the display unit 151.

The periphery of the window 210 may be curved. (Particularly, the corner portion) of the window 210 when an external impact is applied to the window 210.

The resin layer 220 surrounds the periphery of the window 210. The resin layer 220 has a structure that surrounds the periphery of the window 210 formed as a curved surface. The resin layer 220 functions to reduce the external impact applied to the periphery of the window 210. The resin layer 220 may include a plurality of regions having different thicknesses along the thickness direction D of the mobile terminal 100. Specifically, the resin layer 220 may have different thicknesses along the thickness direction D of the mobile terminal 100.

In addition, the resin layer 220 may be formed of a resin material having excellent elasticity. The resin layer 220 may function to mitigate the impact of the boundary between the rear cover 103 and the window 201 while being disposed between the rear cover 103 and the window 210 . In addition, the display unit 151 may include a display area for outputting image information and a non-display area provided at a periphery of the display area. At this time, the resin layer 220 may be located in a non-display area of the display unit 151.

The window 210 and the resin layer 220 may constitute the front case 101 described above.

The rear cover 103 includes a flat surface portion 104 facing the second surface 151b of the display portion 151 and a curved surface portion 105 extending from the flat surface portion 104 toward the window 210 side. . The curved surface portion 105 extends to the periphery of the window 210.

The curved surface portion 105 is in contact with the resin layer 220 and is formed of an elastic material. The curved surface portion 105 may be bent to have a predetermined curvature along the thickness direction D of the mobile terminal 100.

The curved surface portion 105 functions to prevent a direct impact on the window 210 when an external impact (particularly, when falling) is applied. In addition, the curved surface portion 105 functions to disperse the impact applied to the window 210 through the curved shape.

For example, when the mobile terminal 100 is subjected to an external impact (particularly, when it falls), a first shock mitigation region B is formed in the vicinity of the resin layer 220, The second shock-mitigation region C can be formed.

In this manner, it is possible to prevent direct impact on the window 210 or the display unit 151 through the resin layer 220 and the curved surface portion 105.

In other words, it is possible to reduce the direct impact applied to the window 210 or the display unit 151 through the resin layer 220 having an elastic force and the curved surface portion 105 while dispersing the impact, can do.

A cabinet 106 may be provided between the rear cover 103 and the display unit 151.

At this time, the cabinet 106 may be formed of a resin material having a predetermined color, and the curved surface portion 105 may be formed of a transparent material. In this case, a depth-sensitive color rendering can be performed, and a beautiful appearance of the mobile terminal 100 can be produced.

The curved surface portion 105 and the flat surface portion 104 of the rear cover 103 may be formed of different materials. For example, the flat surface portion 104 may be formed of a material having a stiffness greater than that of the curved surface portion 105. So as to reinforce the strength and durability of the rear cover 103.

Further, the curved surface portion 105 is in contact with the cabinet 106 described above. That is, when an external impact (particularly, a lateral impact of the mobile terminal) is applied, the cabinet 106 primarily alleviates the impact, and the curved portion 105 can secondarily alleviate the impact .

For this, the curved surface portion 105 may include a plurality of regions having different thicknesses along the thickness direction D of the mobile terminal 100. In particular, the thickness of the curved surface portion 105 may be greater than the thickness of the region corresponding to the lateral region of the mobile terminal 100, which is in contact with the plane portion 104.

Specifically, the flat surface portion 104 may be formed of a resin material, and the curved surface portion 105 may be formed of a rubber material. In one embodiment, the curved surface portion 105 and the flat surface portion 104 may be integrally formed and double-injected.

When the curved surface portion 105 and the flat surface portion 104 are formed integrally with each other, the boundary portions 104a and 105a between the flat surface portion 104 and the curved surface portion 105 are formed with And corresponding concavities and convexities may be provided, respectively.

In addition, the contact surfaces 104a and 105a of the flat surface portion 104 and the curved surface portion 105 may be formed as inclined surfaces or curved surfaces, respectively. For example, the boundary portions 104a and 105a between the flat surface portion 104 and the curved surface portion 105 may be formed in a streamline shape along the longitudinal direction of the mobile terminal 100. [

The curved surface portion 105 and the flat surface portion 104 may have different thicknesses. In particular, the thickness of the flat surface portion 104 may be greater than the thickness of the curved surface portion 105. Such a structure may be advantageous in terms of reinforcing the rigidity of the rear cover 103.

The flat surface portion 104 may be detachably attached to the curved surface portion 105. In this case, the battery of the mobile terminal 100 may be replaced after the flat portion 104 is separated from the curved portion 105.

At this time, even if it is detachably provided, concavities and convexities corresponding to each other may be provided on the boundary portions 104a and 105a of the flat surface portion 104 and the curved surface portion 105, respectively, in order to increase the contact area.

FIG. 5 is a cross-sectional view of the main portion taken along the line A-A 'of FIG. 1, showing a second embodiment of the rear cover, and FIG. 6 is a diagram illustrating the state of impact dispersion of a mobile terminal according to an embodiment of the present invention FIG.

5, the mobile terminal according to the present embodiment includes a display unit 151, a window 210 surrounding the first surface of the display unit 151, And a first member 220 surrounding the periphery of the window 210 and positioned in a non-display area of the display unit 151. In the present embodiment, the first member 220 is the same as the resin layer 220 described in the first embodiment.

In addition, the mobile terminal may surround a second surface opposite to the first surface of the display unit and may be in contact with the first member 220, and may include at least one of the display unit 151 and the window 210 Includes a rear cover 104 ', 105' that includes a second member 105 'for alleviating the impact applied to the rear cover 104'.

The rear cover 104 'and 105' may include a third member 104 'that faces the second surface of the window 210 and forms the back surface of the mobile terminal 100.

At this time, the second member 105 'may extend from the third member 104' toward the first member 220 to form a side portion of the mobile terminal 100.

In addition, the second member 105 'may be formed of a different material from the third member 104'.

In addition, the mobile terminal may further include a cabinet 106 'disposed between the window 220 and the rear cover 104', 105 '. In one embodiment, a controller 180 and a power supply 190 may be disposed in a space between the cabinet 106 'and the rear cover 104', 105 '.

Meanwhile, the second member 105 'may contact the cabinet 106'. Here, the thickness of the second member 105 'may be greater than the thickness of the third member 104' in contact with the cabinet 106 '. This is to effectively mitigate the impact when a lateral impact of the mobile terminal 100 is applied.

Specifically, when an external impact (particularly a lateral impact of the mobile terminal) is applied, the cabinet 106 'primarily alleviates the impact, and the second member 105' Can be mitigated.

In addition, when the mobile terminal is viewed from the side, the first member 220 may overlap with a portion of the second member 105 '. That is, the second member 105 'may surround the first member 220 in contact with the first member 220 with respect to the side of the mobile terminal.

In addition, the third member 104 'may be formed of a material having greater stiffness than the second member 105'. In one embodiment, the third member 104 'is formed of a resin material, and the second member 105' may be formed of rubber.

Also, as in the first embodiment, the second member 105 'may be formed as a curved portion, and the third member 105' may be formed as a flat portion. In this case, the same features as those of the first embodiment can be shared.

6, when the mobile terminal falls, a first shock mitigation region B is formed in the vicinity of the first member 220 and a second shock mitigation region B is formed in the vicinity of the second member 105 ' C may be formed.

Thus, it is possible to prevent direct impact on the window 210 or the display unit 151 through the first member 220 and the second member 105 '.

That is, it is possible to reduce a direct impact applied to the window 210 or the display unit 151 through the first member 220 and the second member 105 'having an elastic force while dispersing the impact, The impact can be prevented.

7 is a perspective view showing a third embodiment of a back cover constituting a mobile terminal according to the present invention.

Referring to FIG. 7, a honeycomb layer 107 may be provided on the rear cover 103. The honeycomb layer 107 minimizes the weight of the rear cover 103 and can disperse and absorb the load at the time of external impact as much as possible. Here, the honeycomb layer 107 may be formed of rubber.

In addition, the rear cover 103 may be formed of Kevlar material.

In addition, a buffer member 230 may be provided at the corner of the rear cover 103. The buffer member 230 absorbs and mitigates the impact applied to the corner of the rear cover 103.

In one embodiment, the buffer member 230 may be in contact with two different sides forming the corner, respectively.

To this end, the buffer member 230 may include a first member 231 and a second member 232 extending from the first member 231 in a bent state. For example, the buffer member 230 may have an "a" shape. In addition, the buffer member 230 may be formed of a Kevlar material.

8 is a perspective view showing a fourth embodiment of the rear cover constituting the mobile terminal according to the present invention.

Referring to FIG. 8, the rear cover 103 may be provided with a lattice-shaped elastic member 240. The elastic member 240 functions to disperse and absorb impact applied to the rear cover 103.

In addition, the elastic member 240 may have a lattice shape, and the elastic member 240 may include a plurality of horizontal portions and a plurality of vertical portions. At this time, the horizontal portions and the vertical portions may be arranged to intersect with each other.

In addition, the elastic member 240 may be formed of a rubber material. The elastic member 240 may be integrally formed with the rear cover 103. In this case, the elastic member 240 and the rear cover 103 may be formed by double injection molding.

Alternatively, the elastic member 240 may be detachably attached to the rear cover 103.

In addition, the elastic member 240 may be formed in the same color as that of the rear cover 103.

Particularly, as in the case of the rear cover 103, the case exposed to the outside of the mobile terminal 100 is directly subjected to an external impact, so that an impact reduction and dispersion structure should be applied.

FIG. 9 is a plan view showing a case cover constituting a mobile terminal according to the present invention, and FIGS. 10 and 11 are cross-sectional views of main parts of the case cover shown in FIG.

9 and 10, the mobile terminal 100 may further include a case cover 108 extending from the rear cover 103 to selectively surround the window 210. [

The case cover 108 may be rotatable relative to the rear cover 103. That is, the case cover 108 may selectively surround the window 210 according to the needs of the user.

The case cover 108 may be provided with an elastic member 250 protruding to contact the window 210. The elastic member 250 may be an elastic ring provided on the periphery of the case cover 108. The elastic ring comes into contact with the peripheral portion of the window 201 when the case cover 108 surrounds the window 210. [

The elastic member 250 may perform a function of reducing and dispersing an impact when an impact is applied to the entire surface of the mobile terminal 100. In addition, the elastic member 250 may be formed of a rubber material.

The thickness of the elastic member 250 may increase as the distance from the boundary E between the case cover 108 and the rear cover 103 increases. This is to effectively reduce the amount of impact when an impact is applied to the front side of the mobile terminal 100. [

Referring to FIG. 11, the elastic member 250 may be provided with concave or convex portions 251. The concavities and convexities 251 function to reduce the amount of impact when an impact is applied to the front side of the mobile terminal 100 due to dropping or the like.

It will be apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.

Accordingly, the above description should not be construed in a limiting sense in all respects and should be considered illustrative. The scope of the present invention should be determined by rational interpretation of the appended claims, and all changes within the scope of equivalents of the present invention are included in the scope of the present invention.

100: mobile terminal 101: front case
102: rear case 103: rear cover
104: flat portion 105: curved portion
107: Honeycomb layer 108: Case cover
151: display unit 210: window
220: resin layer 230: buffer member
240, 250: elastic member

Claims (18)

A display unit;
A window surrounding the first side of the display portion;
A first member surrounding the periphery of the window to mitigate an impact applied to the window, the first member being located in a non-display area of the display unit; And
And a second member surrounding the second surface in a direction opposite to the first surface of the display portion and contacting the first member and mitigating an impact applied to at least one of the display portion and the window, And a cover. The method according to claim 1,
Wherein the first member comprises a resin layer,
Wherein the thickness of the resin layer varies along the thickness direction of the mobile terminal. The method according to claim 1,
The rear cover facing the second surface of the window and comprising a third member forming a back surface of the mobile terminal,
Wherein the second member extends from the third member toward the first member to form a side portion of the mobile terminal,
Wherein the second member and the third member are formed of different materials. The method of claim 3,
Further comprising a cabinet disposed between the window and the rear cover,
Wherein the second member is formed such that a thickness of a region in contact with the cabinet is larger than a thickness of a region in contact with the third member. The method of claim 3,
The second member is formed as a curved portion,
And the third member is formed as a flat portion. 6. The method of claim 5,
Wherein the flat portion is formed of resin and the curved portion is formed of rubber. The method of claim 3,
Wherein the curved surface portion and the flat surface portion have different thicknesses. The method of claim 3,
Wherein the flat portion is detachably attached to the curved surface portion. The method of claim 3,
And a concavity and a convexity for increasing a contact area are provided at a boundary portion between the flat surface portion and the curved surface portion. The method of claim 3,
Wherein the flat portion and the curved portion have contact surfaces formed of an inclined surface or a curved surface, respectively. The method according to claim 1,
Wherein the back cover is provided with a honeycomb layer. 12. The method of claim 11,
Wherein the honeycomb layer is formed of rubber. The method according to claim 1,
Wherein a cushioning member is provided at an edge of the rear cover. 14. The method of claim 13,
Wherein the cushioning member is in contact with two different sides forming the corner. The method according to claim 1,
Wherein the back cover is provided with a lattice-shaped elastic member. The method according to claim 1,
Further comprising a case cover extending from the rear cover to selectively surround the window,
Wherein the case cover is provided with an elastic member protruding to contact the window. 17. The method of claim 16,
Wherein the thickness of the elastic member increases as the distance from the boundary between the case cover and the rear cover increases. 17. The method of claim 16,
Wherein the elastic member is provided with concavities and convexities.

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