KR20110032901A - Mobile terminal - Google Patents

Abstract

PURPOSE: A mobile terminal is provided to prevent a intensity decreases of a window by embodying a stepped structure of a window as two layers. CONSTITUTION: A display module(151a) is arranged inside a terminal body and display visual information. A window is mounted to the terminal body to be located on upper side of the display module and has a touch sensor. The touch sensor sense a touch added to the visual information. The window includes a bottom layer(220) of transmittance attached to a lower surface of the upper layer and a top layer(210) which is formed as a glass material of transmittance. The lower layer is expanded from the circumference of the upper layer and is hanged to a working part of the terminal body.

Description

Mobile terminal {MOBILE TERMINAL}

The present invention relates to a mobile terminal having a window of translucent material covering the display module.

The terminal can move And can 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 may be further classified into a handheld terminal and a vehicle mount terminal according to whether a user can directly carry it.

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

Recently, in order to implement a simple design of a mobile terminal and to provide a convenient user interface, the application of a touch screen to a mobile terminal is increasing.

An object of the present invention is to provide a window structure of a new type for realizing a stepped structure of a window in a glass window structure for a display.

According to an aspect of the present invention, a terminal body, a display module disposed inside the terminal body and displaying visual information, and mounted on the terminal body to be positioned above the display module are applied to the visual information. And a window having a touch sensor for sensing a touch, wherein the window is attached to a lower surface of the upper layer and extends from a circumference of the upper layer to be formed of a transparent glass material. Disclosed is a mobile terminal comprising a translucent lower layer over a portion.

The upper and lower layers may each have a rectangular sheet shape, and the lower layer may have a larger area than the upper layer.

The upper layer may be formed of a tempered glass material, and the lower layer may be formed of a synthetic resin or tempered glass material.

The touch sensor may be implemented in the form of a touch film mounted on a lower surface of the lower layer.

An attachment surface for attaching the window is formed on an upper surface of the terminal body, and a cover for engaging the lower layer may be coupled.

The present invention configured as described above implements the step structure of the window as two layers to prevent the degradation of the rigidity of the window due to the step processing of the window.

In addition, the present invention by using both the upper and lower layers as a tempered glass material, it is possible to implement a stable quality without reducing the rigidity of the window.

In addition, the present invention can use the upper layer as a tempered glass, using the lower layer as a synthetic resin material while making the most of the advantages of the tempered glass can be produced inexpensive window.

Hereinafter, a mobile terminal according to the present invention will be described in more detail with reference to the accompanying drawings. The suffixes "module" and "unit" for components used in the following description are given or used in consideration of ease of specification, and do not have distinct meanings or roles from each other.

The mobile terminal described herein may include a mobile phone, a smart phone, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), navigation, and the like.

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 A / V input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory 160, and an interface unit. 170, the control unit 180, and the power supply unit 190 may be included. The components shown in FIG. 1 are not essential, so that 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 that enable wireless communication between the mobile terminal 100 and the wireless communication system or between the mobile terminal 100 and a 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 a broadcast signal 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. The broadcast management server may mean a server that generates and transmits a broadcast signal and / or broadcast related information or a server that receives a previously generated broadcast signal and / or broadcast related information and transmits the same to a terminal. The broadcast signal may include not only a TV broadcast signal, a radio broadcast signal, and a data broadcast signal, but also a broadcast signal having a data broadcast signal combined with a TV broadcast signal or a radio broadcast signal.

The broadcast related information may mean 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, it may exist in the form of Electronic Program Guide (EPG) of Digital Multimedia Broadcasting (DMB) or Electronic Service Guide (ESG) of Digital Video Broadcast-Handheld (DVB-H).

The broadcast receiving module 111 may include, for example, Digital Multimedia Broadcasting-Terrestrial (DMB-T), Digital Multimedia Broadcasting-Satellite (DMB-S), Media Forward Link Only (MediaFLO), and Digital Video Broadcast- (DVB-H). A digital broadcast signal may be received using a digital broadcast system such as handheld) or ISDB-T (Integrated Services Digital Broadcast-Terrestrial). Of course, the broadcast receiving module 111 may be configured to be suitable for not only the above-described digital broadcasting system but also other broadcasting systems.

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

The wireless internet module 113 refers to a module for wireless internet access and may be embedded or external to the mobile terminal 100. Wireless Internet technologies may include Wireless LAN (Wi-Fi), Wireless Broadband (Wibro), World Interoperability for Microwave Access (Wimax), High Speed Downlink Packet Access (HSDPA), and the like.

The short range communication module 114 refers to a module for short range communication. As a short range communication technology, Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, and the like may be used.

The location information module 115 is a module for obtaining a location of a mobile terminal, and a representative example thereof is a GPS (Global Position System) module.

Referring to FIG. 1, the A / V 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 call mode or the photographing mode. The processed image frame may 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 according to the use environment.

The microphone 122 receives an external sound signal by a microphone in a call mode, a recording mode, a voice recognition mode, etc., and processes the external sound signal into 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. The microphone 122 may implement various noise removing algorithms for removing noise generated in the process of receiving an external sound signal.

The user input unit 130 generates input data for the user to control the operation of the terminal. The user input unit 130 may include a key pad, a dome switch, a touch pad (constant voltage / capacitance), a jog wheel, a jog switch, and the like.

The sensing unit 140 detects a current state of the mobile terminal 100 such as an open / closed state of the mobile terminal 100, a location of the mobile terminal 100, presence or absence of a user contact, orientation of the mobile terminal, acceleration / deceleration of the mobile terminal, and the like. To generate 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 may sense whether the slide phone is opened or closed. In addition, whether the power supply unit 190 is supplied with power, whether the interface unit 170 is coupled to the external device may be sensed. The sensing unit 140 may include a proximity sensor 141.

The output unit 150 is used to generate an output related to sight, hearing, or tactile sense, and includes a display unit 151, an audio output module 152, an alarm unit 153, and a haptic module 154. Can be.

The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, when the mobile terminal is in a call mode, the mobile terminal displays a user interface (UI) or a graphic user interface (GUI) related to the call. When the mobile terminal 100 is in a video call mode or a photographing mode, the mobile terminal 100 displays photographed and / or received images, a UI, and a GUI.

The display unit 151 includes a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), and a flexible display (flexible). and at least one of a 3D display.

Some of these displays can be configured to be transparent or light transmissive so that they can be seen from the outside. This may be referred to as a transparent display. A representative example of the transparent display is TOLED (Transparant OLED). The rear structure of the display unit 151 may also be configured as a light transmissive structure. With this structure, the user can see the 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 implementation form 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 one another, and may be disposed on different surfaces, respectively.

When the display unit 151 and a sensor for detecting a touch operation (hereinafter, referred to as a touch sensor) form a mutual layer structure (hereinafter referred to as a touch screen), the display unit 151 may be configured in addition to an output device. Can also be used as an input device. The touch sensing unit may have, for example, a form of a touch film, a touch sheet, a touch pad, or the like.

The touch detector may be configured to convert a change in pressure applied to a specific portion of the display unit 151 or capacitance generated in a specific portion of the display unit 151 into an electrical input signal. The touch sensing unit may be configured to detect not only the position and area of the touch but also the pressure at the touch.

If there is a touch input to the touch sensing unit, the corresponding signal (s) is sent to the touch controller. The touch controller processes the signal (s) and then transmits the corresponding data to the controller 180. As a result, the controller 180 can know which area of the display unit 151 is touched.

Referring to FIG. 1, a proximity sensor 141 may be disposed in an inner region of the mobile terminal or in the vicinity of the touch screen, which is surrounded 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 an object present in the vicinity without using a mechanical contact by using an electromagnetic force or infrared rays. Proximity sensors have a longer life and higher utilization than touch sensors.

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

Hereinafter, for convenience of explanation, the act of allowing the pointer to be recognized without being in contact with the touch screen so that the pointer is located on the touch screen is referred to as a "proximity touch", and the touch The act of actually touching the pointer on the screen is called "contact touch." The position where the proximity touch is performed by the pointer on the touch screen refers to a position where the pointer is perpendicular to the touch screen when the pointer is in proximity proximity.

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

The sound 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, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, and the like. The sound output module 152 may also output a sound signal related to a function (eg, a call signal reception sound, a message reception sound, etc.) performed in the mobile terminal 100. The sound output module 152 may include a receiver, a speaker, a buzzer, and the like.

The alarm unit 153 outputs a signal for notifying occurrence of an event of the mobile terminal 100. Examples of events occurring in the mobile terminal include call signal reception, message reception, key signal input, and touch input. The alarm unit 153 may output a signal for notifying occurrence of an event in a form other than a video signal or an audio signal, for example, vibration. The video signal or the audio signal may be output through the display unit 151 or the audio output module 152, so that they 151 and 152 may be classified as part of the alarm unit 153.

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

In addition to vibration, the haptic module 154 may be configured to provide a pin array that vertically moves with respect to the contact skin surface, a jetting force or suction force of air through the jetting or suction port, grazing to the skin surface, contact of the electrode, electrostatic force, and the like. Various tactile effects can be generated, such as effects by the endothermic and the reproduction of a sense of cold using the elements capable of endotherm or heat generation.

The haptic module 154 may not only deliver the haptic effect through direct contact, but also may implement the user to feel the haptic effect through a muscle sense such as a finger or an arm. Two or more haptic modules 154 may be provided according to configuration aspects of the mobile terminal 100.

The memory 160 may store a program for the operation of the controller 180 and may temporarily store input / output data (for example, a phone book, a message, a still image, a video, etc.). The memory 160 may store data regarding vibration and sound of various patterns output when a touch input on the touch screen is performed.

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), RAM (Random Access Memory, RAM), Static Random Access Memory (SRAM), Read-Only Memory (ROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Programmable Read-Only Memory (PROM), Magnetic Memory, Magnetic It may include a storage medium of at least one type of disk, optical disk. The mobile terminal 100 may operate in connection with a web storage that performs a storage function of the memory 160 on the Internet.

The interface unit 170 serves as a path with all external devices connected to the mobile terminal 100. The interface unit 170 receives data from an external device, receives power, transfers the power to each component inside the mobile terminal 100, or transmits data inside the mobile terminal 100 to an 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 that stores various types of information for authenticating the usage rights of the mobile terminal 100, and includes a user identification module (UIM), a subscriber identify module (SIM), and a universal user authentication module ( 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 170 may be a passage through which power from the cradle is supplied to the mobile terminal 100, or various command signals input from the cradle by a user may be input to the mobile terminal. It can be a passage to be delivered. Various command signals or power input from the cradle may be operated as signals for recognizing that the mobile terminal is correctly mounted in the cradle.

The controller 180 typically controls the overall operation of the mobile terminal. For example, perform related control and processing for voice calls, data communications, video calls, and the like. The controller 180 may include a multimedia module 181 for playing multimedia. The multimedia module 181 may be implemented in the controller 180 or may be implemented separately from the controller 180.

The controller 180 may perform a pattern recognition process for recognizing a writing input or a drawing input performed on the touch screen as text and an image, respectively.

The power supply unit 190 receives an external power source and an internal power source under the control of the controller 180 to supply power for operation of each component.

Various embodiments described herein may be implemented 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 include application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), and the like. It may be implemented using at least one of processors, controllers, micro-controllers, microprocessors, and electrical units for performing other functions. The described embodiments may be implemented by the controller 180 itself.

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

2A is a front perspective view of an example of a mobile terminal or a portable terminal according to the present invention.

The disclosed mobile terminal 100 has a terminal body in the form of a bar. However, the present invention is not limited thereto and may be applied to various structures such as a slide type, a folder type, a swing type, a swivel type, and two or more bodies are coupled to be relatively movable.

The terminal body includes a casing (casing, housing, cover, etc.) forming an external appearance. In this embodiment, the case may be divided into a front case 101 and a rear case 102. Various electronic components are built in the space formed between the front case 101 and the rear case 102. At least one intermediate case may be further disposed between the front case 101 and the rear case 102.

The cases may be formed by injecting a synthetic resin or may be formed of a metal material, for example, a metal material such as stainless steel (STS) or titanium (Ti).

The display unit 151, the audio output unit 152, the camera 121, the user input units 130/131 and 132, the microphone 122, and the interface 170 may be disposed in the terminal body, mainly the front case 101. have.

The display unit 151 occupies most of the main surface of the front case 101. A sound output unit 151 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 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 and 132. The manipulation units 131 and 132 may also be collectively referred to as manipulating portions, and may be employed in any manner as long as the user operates the tactile manner with a tactile feeling.

Content input by the first or second manipulation units 131 and 132 may be variously set. For example, the first operation unit 131 receives commands such as start, end, scroll, and the like, and the second operation unit 132 controls the size of the sound output from the sound output unit 152 or the size of the sound output from the display unit 151 To the touch recognition mode of the touch screen.

FIG. 2B is a rear perspective view of the mobile terminal shown in FIG. 2A.

Referring to FIG. 2B, a camera 121 ′ may be additionally mounted on the rear 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. 2A), and may be a camera having different pixels from the camera 121.

For example, the camera 121 has a low pixel so that the user's face is photographed and transmitted to the counterpart in case of a video call, and the camera 121 'photographs a general subject and does not transmit it immediately. It is desirable to have a high pixel because there are many. The cameras 121 and 121 'may be installed in the terminal body so as to be rotatable or pop-upable.

A flash 123 and a mirror 124 are further disposed adjacent to the camera 121 '. The flash 123 shines light toward the subject when the subject is photographed by the camera 121 '. The mirror 124 allows the user to see his / her own face or the like when photographing (self-photographing) the user using the camera 121 '.

The sound output unit 152 'may be further disposed on the rear surface of the terminal body. The sound output unit 152 ′ may implement a stereo function together with the sound output unit 152 (see FIG. 2A), and may be used to implement a speakerphone mode during a call.

In addition to the antenna for a call or the like, a broadcast signal reception antenna 124 may be additionally disposed on the side of the terminal body. The antenna 124 constituting a part of the broadcast receiving module 111 (see FIG. 1) may be installed to be able to be drawn out from the terminal body.

The terminal body is equipped with a power supply unit 190 for supplying power to the mobile terminal 100. The power supply unit 190 may be embedded in the terminal body or may be directly detachable from the outside of the terminal body.

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

Referring to FIG. 3, open mounting holes 103 and 104 are formed in the front case 101, and the display module 151a and the first manipulation unit 131 are mounted in the mounting holes 103 and 104.

The front case 101 is mounted with a window 200 covering the display module 151a. An upper surface of the front case 101 forms an attaching surface for attaching the window 200, and the window 200 may be attached to the attaching surface by an adhesive or an adhesive film.

The window 200 is at least partially formed of a light-transmissive material so that visual information output from the display module 151a can be seen. According to the present embodiment, the light transmitting region 201 and the light transmitting region 202 are formed in the window 200. The light transmissive area 201 may have an area corresponding to the output area of the display module. The opaque region 202 is formed at an outer portion of the translucent region 201 to cover the top surface of the front case 201. The opaque region 202 may be implemented through printing using opaque ink. In addition, a through hole 231 through which the first manipulation unit 131 is exposed is formed in the non-transparent region 202.

The window 200 according to the present exemplary embodiment is configured to detect a touch applied to visual information output from the display module 151a. To this end, the window 200 is provided with a touch sensor for detecting a touch. In the following description, a description will be given based on the configuration of a 'touch window' capable of detecting a touch, but the present invention may be applied to a window without a touch sensor.

4 is an exploded perspective view of the window shown in FIG. 3, and FIG. 5 is a cross-sectional view of the mobile terminal along the line VV of FIG. 2A.

The window 200 associated with the present invention includes an upper layer 210 and a lower layer 220.

The upper layer 210 is formed of a transparent glass material. The upper layer 210 is preferably formed of a tempered glass material that is strengthened to strengthen the rigidity. As such, as the outer surface of the window 200 is formed of tempered glass, the appearance of the window 200 may be improved and the strength of the window 200 may be improved. In addition, it is possible to prevent deformation of the window 200 according to the repeated touch manipulation, thereby improving reliability of the touch manipulation.

The lower layer 220 is attached to the lower surface of the upper layer 210 and has a form in which the upper layer 210 extends from the circumference. The lower layer 220 is configured to be caught by a portion of the terminal body, specifically, the front case 101.

The upper layer 210 and the lower layer 220 may each have a rectangular sheet form, as shown in FIG. 4, in which case the lower layer 220 has a larger area than the upper layer 210.

The upper layer and the lower layer 220 are attached to each other to form a stepped shape in the outer portion of the window 200 as shown in FIG. The upper layer 210 and the lower layer 220 may be attached to each other by a transparent adhesive or an adhesive film.

The lower layer 220 may be formed of glass or tempered glass material like the upper layer 210. In addition, the lower layer 220 may be formed of a material different from the upper layer 210, for example, a transparent synthetic resin material. A lower cost synthetic resin may be used as the lower layer 220 to reduce the manufacturing cost of the window 200.

The touch sensor provided in the window 200 may be implemented as the transmissive touch film 230 as shown in FIG. 4. The touch film 230 is formed with a transparent conductive pattern, and the conductive pattern generates an electric signal when a touch is applied to the window 200. According to the present exemplary embodiment, the touch film 230 is attached to the lower surface of the lower layer 220, but the touch film 230 may be attached between the upper layer 210 and the lower layer 220. . The touch film 230 may also be attached to the lower layer 220 by a transparent adhesive film or an adhesive. The touch film 230 may be provided with a connector for connection with the printed circuit board 105 (refer to FIG. 5) inside the terminal body.

Mounting holes 231a to 231c for mounting the first manipulation unit 131 may be formed in the upper and lower layers 210 and 220 and the touch film 230.

5 shows a state in which a window is mounted on the terminal body.

As shown in FIG. 5, the printed circuit board 105 and the display module 151a are disposed inside the terminal body, that is, between the front case 101 and the rear case 102, and the window 200 is disposed on the upper portion of the display. Will be located.

The lower surface of the lower layer 220 is attached to the attachment surface S formed on the front case 101 by the adhesive film 240. However, since the lower layer 220 of the window 200 is fixed to a part of the front case 101, the present invention will also be possible without the adhesive film 240.

Meanwhile, the cover 107 may be coupled to the front case 101 to form a part of the front case 101. The cover 107 may have a shape corresponding to the outline of the window 200, and a through hole 108 corresponding to the area of the upper layer 210 of the window 200 may be formed in the center of the cover 107. Can be.

When the cover 107 is coupled to the front case 101, the lower layer 220 is caught by the cover 107. That is, the upper surface of the lower layer 220 extending around the upper layer 210 is caught by the lower surface of the cover 107. The upper rare layer 210 is positioned in the through hole 108 of the cover 107 and is coplanar with the cover 107.

According to the present embodiment, the cover 107 has a structure that is coupled to the front case 101 as a separate structure from the front case 101, but is integrally formed with the front case 101 to form a part of the front case 101. It is also possible to achieve.

Looking at the structure of assembling the window 200 to the front case 101, first, the adhesive film 240 is attached to the attachment surface (S) of the front case 101, the adhesive film 240 of the window 200 The lower layer 220 is attached. Then, when the cover 107 is coupled to the front case 101 such that the lower layer 220 is caught by the cover 107, the assembling process of the window 200 and the front case 101 is completed.

However, when the attachment surface S is not formed on the front case 101, the window 200 may be assembled in the rear direction of the cover 107 so that the lower layer 220 may be caught by the cover 107. Will do.

As such, the structure in which the stepped structure of the window 200 is caught by a portion of the terminal body may prevent the window 200 from leaving or lifting out of the terminal body. In addition, the stepped structure of the window 200 also serves to prevent moisture from entering the inside of the terminal body. In addition, the area of the window 200 attached to the attachment surface S may be increased, and as a result, the width W of the edge portion of the terminal body may be reduced.

However, when the window 200 is formed of glass or tempered glass material, to form the step structure of the window 200, step processing through CNC machining is required. Since the glass has a strong brittle property, when cracking the window 200 made of glass, fine cracks are generated in the window 200, thereby causing a decrease in rigidity of the window 200.

The present invention implements the step structure of the window 200 as two layers 210 and 220 to prevent the degradation of the rigidity of the window 200 as described above.

When both the upper layer 210 and the lower layer 220 are used as a tempered glass material, it is possible to implement stable quality without reducing the rigidity of the window 200. In addition, when the upper layer 210 is used as a tempered glass, and the lower layer 220 is used as a synthetic resin material, it will be possible to implement an inexpensive window 200 while taking advantage of the tempered glass.

The above-described mobile terminal is not limited to the configuration and method of the above-described embodiments, but the embodiments may be configured by selectively combining all or some of the embodiments so that various modifications can be made. It may be.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.

Figure 2a is a front perspective view of a mobile terminal according to an embodiment of the present invention.

2b is a rear perspective view of a mobile terminal according to one embodiment of the present invention;

3 is an exploded perspective view of a mobile terminal associated with one embodiment of the present invention;

4 is an exploded perspective view of the window shown in FIG.

5 is a cross-sectional view of the mobile terminal along the line VV of FIG. 2A;

Claims (5)

Terminal body; A display module disposed inside the terminal body and displaying visual information; And A window mounted on the terminal body to be positioned above the display module and having a touch sensor for sensing a touch applied to the visual information; The window is, An upper layer formed of a transparent glass material; And And a translucent lower layer attached to a lower surface of the upper layer and extending from a circumference of the upper layer and covering a portion of the terminal body. The method of claim 1, The upper and lower layers each have a rectangular sheet shape, The lower layer has a larger area than the upper layer. The method of claim 1, The upper layer is formed of a tempered glass material, The lower layer is a mobile terminal, characterized in that formed of a synthetic resin or tempered glass material. The method of claim 1, The touch sensor is a mobile terminal, characterized in that the touch film mounted on the lower surface of the lower layer. The method of claim 1, The upper surface of the terminal body is formed with an attachment surface for attaching the window, the mobile terminal, characterized in that the cover for engaging the lower layer is coupled.

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