KR101892002B1 - Mobile terminal - Google Patents

Abstract

The present invention provides a wireless communication device including a main body to which a window is mounted, a display disposed to correspond to the window, an antenna coil formed to be wound along the rim of the window to transmit or receive a wireless signal related to short- And a ferrite sheet disposed on one surface of the display to remove noise and form a separation distance from the antenna coil.

Description

[0001] MOBILE TERMINAL [0002]

The present invention relates to a mobile terminal capable of near field communication.

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 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. .

Various new attempts have been made in terms of hardware or software to implement the complex functions of such multimedia devices. For example, a user interface environment is provided for a user to easily and conveniently search for or select a function.

In addition, mobile terminals are regarded as personal items for expressing their individuality, and various design forms are required. The design form also includes structural changes and improvements for the user to use the mobile terminal more conveniently. One of such structural changes and improvements can be considered for an antenna device implementing near field wireless communication in a mobile terminal.

It is an object of the present invention to provide an antenna device with improved performance in connection with short-range wireless communication and a mobile terminal including the same.

Another object of the present invention is to provide a mobile terminal capable of short-range wireless communication while maintaining a slim design.

According to an aspect of the present invention, there is provided a mobile terminal including a main body to which a window is attached, a display disposed to correspond to the window, And a ferrite sheet disposed on one surface of the display to remove noise from the radio signal and to form a distance from the antenna coil.

In one embodiment of the present invention, the mobile terminal includes a touch sensor disposed between the window and the display for sensing a touch input, the ferrite sheet being disposed between the touch sensor and the display to form a buffer do.

The ferrite sheet extends along an edge of the display to form a loop. The touch sensor and the display may be spaced apart from each other by the ferrite sheet.

In another embodiment of the present invention, the touch sensor includes electrode films on which conductive patterns are formed, and the antenna coil is formed on one of the electrode films.

As another example related to the present invention, the antenna coil is disposed between the window and the touch sensor.

As another example related to the present invention, the window is formed of a light transmitting material, and is divided into an opaque edge area and a center area wrapped by the edge area, and the antenna coil is disposed in the edge area .

The window may have a front surface exposed to the outside and a rear surface opposite to the front surface, and the antenna coil may be formed on the rear surface of the window in the edge area.

The main body includes a bezel portion on which at least a part of the edge region is seated, and the antenna coil may be disposed on the bezel portion.

The window may have a front surface, a rear surface, and a side surface, and the antenna coil may be formed to wind the side surface of the window.

According to another embodiment of the present invention, a touch sensor for sensing a touch input is disposed between the window and the display, a flexible circuit board is extended from the touch sensor, The antenna coil is electrically connected to the antenna coil.

The flexible circuit board includes a first connection part connected to the touch sensor and a second connection part formed on a layer different from the first connection part and connected to the antenna coil.

As another example related to the present invention, the display is accommodated in a frame, and the antenna coil is formed to be wound on the outer peripheral surface of the frame.

As the antenna coil is formed along the rim of the window, the present invention realizes close-range communication through the front surface of the terminal. In addition, as the ferrite sheet is formed on one side of the display, the influence of the display is minimized, thereby improving the near-field communication performance. In addition, this structure maximizes the area and space of the ferrite sheet, so that the magnetic field distribution can be strongly and uniformly reformed.

Further, in the present invention, since the ferrite sheet is disposed between the touch sensor and the display, a slim structure without a separate buffer for the display can be realized. This limits the leakage of light from the display, and the influence of the touch sensor can be minimized.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.
FIG. 2A is a perspective view of an example of a mobile terminal according to the present invention. FIG.
FIG. 2B is a rear perspective view of the mobile terminal shown in FIG. 2A. FIG.
Figure 3 is an exploded view of the mobile terminal of Figure 2b.
Figure 4 is a cross-sectional view taken along line AA of Figure 2a.
5 is an enlarged view of a portion B in Fig. 3;
6 to 9 are conceptual diagrams showing modifications of the antenna device of the present invention, respectively.

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 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), 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 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. 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 may refer to a broadcast channel, a broadcast program, or information related to 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 And a Digital Broadcasting System (ISDB-T) (Integrated Services Digital Broadcast-Terrestrial). 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 transmits and receives radio signals to 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 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. 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 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.

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 an image frame such as a still image or moving image obtained by the image sensor in the video communication mode or the photographing mode. The processed image frame can be displayed on the display module 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 key pad dome switch, a touch pad (static / static), 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 output unit 150 is for generating output related to visual, auditory or tactile sense and includes a display module 151, an acoustic output module 152, an alarm unit 153, and a haptic module 154 .

The display module 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 module 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 can be referred to as a transparent display, and a typical example of the transparent display is TOLED (Transparent OLED) and the like. The rear structure of the display module 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 module 151 of the terminal body.

There may be two or more display modules 151 according to the embodiment of the mobile terminal 100. For example, in the mobile terminal 100, a plurality of display modules may be spaced apart or integrally arranged on one surface, and may be disposed on different surfaces, respectively.

(Hereinafter, referred to as a 'touch screen') in which the display module 151 and the sensor for sensing the touch operation (hereinafter, referred to as 'touch sensor') have a mutual layer structure, It can also be used as an input device. The touch sensor may have the form of, for example, a touch film, a touch sheet, a touch pad, or the like.

The touch sensor may be configured to convert a change in a pressure applied to a specific portion of the display module 151 or a capacitance generated in a specific portion of the display module 151 into an electrical input signal. The touch sensor 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, the corresponding signal (s) is sent to the touch controller. 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 module 151 is touched or the like.

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 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 touching the pointer on the screen is called "contact touch. &Quot; The position where the pointer is proximately touched on the touch screen means a position where the pointer is vertically corresponding 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. The video signal or the audio signal may be output through the display module 151 or the audio output module 152 so that they may be classified as a part of the alarm unit 153. [

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 hit module 154 can be controlled. 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 a suction force of the air through the injection port or the suction port, a touch on the skin surface, contact with 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. The haptic module 154 may include two or more haptic modules 154 according to the configuration of the portable terminal 100.

The memory 160 may store a program for the operation of the controller 180 and temporarily store input / output data (e.g., a phone book, a message, a still image, a moving picture, etc.). The memory 160 may store data on vibration and sound of various patterns outputted when a 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 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 processors, controllers, micro-controllers, microprocessors, and other electronic units for performing other functions. In some cases, May be implemented by the control unit 180.

According to a software implementation, embodiments such as procedures or functions may be implemented with separate software modules that perform at least one function or operation. The software code may be implemented by a software application written in a suitable programming language. The software codes are stored in the memory 160 and can be executed by the control unit 180. [

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

The disclosed mobile terminal 200 has a bar-shaped mobile phone 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 includes a case (a casing, a housing, a cover, and the like) which forms an appearance. In this embodiment, the case may be divided into a front case 201 and a rear case 202. [ Various electronic components are embedded in the space formed between the front case 201 and the rear case 202. At least one intermediate case may be additionally disposed between the front case 201 and the rear case 202. [

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.

A display module 251, an audio output unit 252, a camera 221, user input units 230/231 and 232, a microphone 222, and an interface 270 may be disposed in the front body 201 have.

The display module 251 occupies most of the main surface of the front case 201. A sound output unit 252 and a camera 221 are disposed in an area adjacent to one end of both ends of the display module 251 and a user input unit 231 and a microphone 222 are disposed in an area adjacent to the other end. The user input unit 232 and the interface 270 may be disposed on the side surfaces of the front case 201 and the rear case 202.

The user input unit 230 is operated to receive a command for controlling the operation of the portable terminal 200 and may include a plurality of operation units 231 and 232. The operation units 231 and 232 may be collectively referred to as a manipulating portion and may be employed in any manner as long as the user operates in a tactile manner.

The contents inputted by the first or second operation units 231 and 232 can be variously set. For example, the first operation unit 231 receives commands such as start, end, scroll, and the like, and the second operation unit 232 controls the size of the sound output from the sound output unit 252, To the touch recognition mode of the touch screen. The display module 251 forms a touch screen together with the touch sensor, and the touch screen may be an example of the user input unit 230. [

Referring to FIG. 2B, a camera 221 'may be further mounted on the rear surface of the terminal body, that is, the rear case 202. The camera 221 'may have a photographing direction substantially opposite to the camera 221 (see FIG. 2A), and may be a camera having different pixels from the camera 221.

For example, the camera 221 has a low pixel so that it is easy to capture a face of a user in the case of a video call or the like and transmits the face to the other party, and the camera 221 ' It is preferable to have a large number of pixels. The cameras 221 and 221 'may be installed in the terminal body such that they can be rotated or pop-up.

A flash 223 and a mirror 224 are additionally disposed adjacent to the camera 221 '. The flash 223 illuminates the subject when the subject is photographed by the camera 221 '. The mirror 224 allows the user to illuminate the user's own face or the like in the case where the user intends to photograph (self-photograph) himself / herself using the camera 221 '.

An acoustic output may be additionally disposed on the rear surface of the terminal body. The rear audio output unit may implement a stereo function together with the front audio output unit 252 (see FIG. 2A), and may be used for implementing a speakerphone mode during a call.

A power supply unit 290 for supplying power to the portable terminal 200 is mounted on the terminal body. The power supply unit 290 may be built in the terminal body or may be detachable from the outside of the terminal body.

The rear case 202 may further include a touch sensor for sensing a touch. Like the display module 251, the touch sensor can also be configured as a light transmission type. In this case, if the display module 251 is configured to output time information on both sides, the time information can be recognized through the touch sensor. The information output on both sides may be controlled by the touch sensor. Alternatively, the touch sensor may be further equipped with a display, and the touch screen may be disposed in the rear case 202 as well.

The touch sensor operates in correlation with the display module 251 of the front case 201. The touch sensor may be disposed parallel to the rear of the display module 251. Such a touch sensor may have a size equal to or smaller than that of the display module 251.

An antenna for a call or the like may be mounted on the terminal body, and an antenna for receiving a broadcast signal may be additionally disposed.

In addition, an antenna device 210 (see FIG. 5) for implementing near field communication (near field communication) may be disposed in the terminal body. Hereinafter, the short-range wireless communication antenna device 210 will be described in more detail with reference to FIG. 3 to FIG.

Figure 3 is an exploded view of the mobile terminal of Figure 2b, Figure 4 is a cross-sectional view taken along line A-A of Figure 2a, and Figure 5 is an enlarged view of portion B of Figure 3.

Referring to FIG. 3, a window 251b is coupled to one surface of the front case 201. As shown in FIG. The window 251b is made of a material through which light can be transmitted, for example, a light transmitting synthetic resin, a tempered glass, or the like. However, the window 251b may include a portion that can not transmit light. The portion where light can not be transmitted can be realized by covering the window 251b separately with a pattern film (not shown). The pattern film can be made so that the center is transparent and the edges are opaque. Through this, the window 251b is divided into an edge region S to be opaque and a central region C to be surrounded by the edge region.

A display (or display device) 251a may be mounted on the rear surface of the window 251b. The display 251a is arranged to correspond to the window 251b, and displays time information through the central area.

The portion through which the light of the window 251b is transmitted may have an area corresponding to the display 251a. Accordingly, the user can recognize the time information output from the display 251a from the outside. In this way, the window 251b and the display 251a can be configured as the display unit 251 (see Fig. 2a).

The circuit board 281 may be mounted on the rear case 202. Alternatively, the circuit board 281 may be mounted on the front case 201 or mounted on a separate internal structure. The circuit board 281 may be configured as an example of a controller 180 (see FIG. 1) for operating various functions of the mobile terminal.

In the window 251b, a touch sensor 260 may be mounted to sense a touch input. The touch sensor 260 is disposed to correspond to the window 251b and is configured to sense a touch point with respect to the window 251b.

The touch sensor 260 is made of a light transmissive material and may be configured to convert a change in voltage, capacitance, and the like occurring in a specific portion of the window 251b into an electrical input signal. As an example of the touch sensor 260, the touch sensor 260 may be a capacitive sensor.

Referring to these drawings, an antenna device 210 for performing short-range wireless communication is built in a terminal. The circuit board 281 is electrically connected to the antenna device 210 and processes radio signals transmitted and received by the antenna device 210. [

The antenna device 210 includes an antenna coil 211 and a ferrite sheet 212.

3 and 4, the antenna coil 211 is formed to be wound along the rim of the window 251b to transmit or receive a radio signal related to short-range wireless communication. More specifically, the antenna coil 211 is formed on the rear surface of the window 251b in the edge region S of the window 251b, and receives the magnetic flux change occurring in the periphery of the front surface of the terminal. The antenna coil 211 may be patterned on the rear surface of the window 251b by plating, vapor deposition, fine wire bonding or the like.

However, the present invention is not limited thereto, and the antenna coil 211 may be formed to wind the side surface of the window 251b.

The antenna coil 211 is part of an electromagnetic induction communication system for reading information by exchanging magnetic flux with the reader-side antenna, and forms an antenna of an RFID (Radio Frequency Identification) tag. However, the present invention is not limited thereto, and the antenna coil 211 may be configured to transmit and receive radio signals to and from other terminals.

The integrated circuit of the tag may be disposed on the circuit board 281. The antenna coil 211 may extend to a flexible circuit board 283 and the flexible circuit board 283 may be connected to the circuit board 281 for electrical connection between the integrated circuit and the antenna coil 211.

The antenna device 210 may be passive, semi-passive, or active depending on the power of using the RFID. In the case of passive RFID, the terminal uses the magnetic flux change at the reader side as energy, and reads and communicates information of the integrated circuit. In a semi-passive RFID, the power of the terminal is used to read the information of the integrated circuit, and the power of the reader is used to communicate. Finally, in active RFID, the power of the terminal is used to both read the information of the integrated circuit and communicate the information.

According to the example, a change in the magnetic flux generated when the antenna coil 211 is adjacent to the reader due to the conductor embedded in the terminal body may be interfered. Such a conductor may be, for example, a display 251a, a touch sensor 260, a battery, a speaker, a camera, a vibration motor, or the like.

The ferrite sheet 212 limits interference with the flux change caused by the conductor. The ferrite sheet 212 is disposed on the display 251a so as to remove noise from the radio signal transmitted and received and form a separation distance from the antenna coil 211. [

The ferrite sheet 212 is disposed between the touch sensor 260 and the display 251a so as to form a buffer so that the display 251a displays the time information of the display 251a on the outside, To form a loop. However, the present invention is not limited thereto, and the ferrite sheet 212 may be applied to a case where the touch sensor is excluded. In this case, the ferrite sheet 212 may form a buffer between the window 251b and the display 251a.

4, when the antenna coil 211 is formed on a different layer or another substrate than the touch sensor and overlaps with a pattern for signal sensing and a signal transmission line, the performance of the near field wireless communication A ferrite sheet 212 (or a ferrite form) is disposed on the rear surface of the touch sensor 260. [

The ferrite sheet 212 is formed in an annular shape and is configured as a buffer damper made of a magnetic material so that the touch sensor 260 and the display 251a are separated from each other. For this purpose, the ferrite sheet 212 may be made with a thickness of approximately 0.1 to 0.2 millimeters.

More specifically, the ferrite sheet 212 may be disposed on one side of the display 251a, with a plurality of metal compounds having a magnetic body in a thin sheet structure in paper form. As the antenna coil 211 is wound around the structure (window or the like) of the terminal and the ferrite sheet 212 is attached to an electronic device (display or the like) adjacent thereto, the ferrite sheet 212 of the antenna device 210 The antenna coil 211 can be configured separately.

3 and 5, the flexible circuit board 283, which is electrically connected to the antenna coil 211, forms an electrical path extending from the touch sensor 260. That is, the flexible circuit board 283 is connected to the touch sensor 260 to transmit a touch sensing signal to the circuit board 281, and at the same time, the antenna coil 211, And is electrically connected.

More specifically, the flexible circuit board 283 includes a first connection portion 283a connected to the touch sensor 260, and a second connection portion 283a formed on a different layer from the first connection portion 283a and connected to the antenna coil 211 2 connection portion 283b. According to such a laminated structure, the antenna coil 211 and the touch sensor 260, which are arranged at different positions in the thickness direction of the terminal, can be realized by a single flexible circuit board 283 .

6 to 9 are conceptual diagrams showing modifications of the antenna device of the present invention, respectively. In other embodiments of the present invention described below, the same or similar reference numerals are given to the same or similar components as those of the previous embodiment, and the description will be replaced with the first explanation.

Referring to FIG. 6, the antenna coil 311 is disposed between the window 351b and the touch sensor 360. FIG.

An antenna film 313 is mounted on the rear surface of the window 351b. The antenna film 313 may have a structure in which the antenna coil 311 is formed on the base of the flexible circuit board, for example. In this case, the antenna film 313 is annular and attached to the edge region S of the window 351b.

As another example, the antenna film 313 may be formed in the form that the antenna coil is adhered on the optical film. The optical film may be formed in a form having good optical performance, for example, a film having a high light transmittance and a thin thickness.

As another example, the antenna film 313 may be in the form of an antenna coil formed on a pattern film mounted on the window 351b.

Referring to FIG. 7, a bezel 401a on which the window 451b is seated is formed in the front case 401. [ Unlike the present example, the bezel 401a may be provided separately from the front case.

The bezel 401a is configured such that at least a portion of the edge region S is seated and the antenna coil 411 is disposed on the bezel 401a. A fine groove (not shown) may be formed in the bezel 401a for adhesion of the antenna coil 411. Further, a metal compound of a magnetic material may be applied to the bezel portion 401a so that the bezel portion 401a serves as a ferrite sheet.

Referring to FIG. 8, the touch sensor 560 includes a first electrode film 561 and a second electrode film 562 on which a conductive pattern is formed. These may be indium tin oxide (ITO) films or carbon nanotube (CNT) films, respectively.

The antenna coil 511 is formed on one of the electrode films 561 and 562. For example, a conductive pattern for touch sensing may be formed on one surface of the first electrode film 561, and the antenna coil 511 may be formed on the opposite surface. Alternatively, the antenna coil 511 may be disposed on the opposite surface of the second electrode film 562 on which the conductive pattern is formed. As a method of forming the antenna coil 511 on the first or second electrode film 561 or 562, plating or vapor deposition may be used.

Referring to FIG. 9, a frame 651d accommodating a display 651a is disposed inside the terminal.

The frame 651d is formed to cover the rear surface of the display 651a and protrudes from the edge to protect the side surface of the display 651a. A backlight of the display 651a may be disposed at the bottom of the frame 651d.

According to the drawing, the antenna coil 611 is formed so as to be wound around the outer peripheral surface of the frame 651d. The antenna coil 611 is formed in a wire form and is wound and fixed on the frame 651d. In this case, the ferrite sheet 612 is made to extend not only to the front surface of the display 651a but also to the side surface of the display 651a. The ferrite sheet 612 on the side of the display 651a faces the antenna coil 611 in the width direction of the terminal. With this structure, the distribution of the magnetic field is strong and uniformly regenerated, and according to the experiment, the communication distance with the reader is further increased.

The mobile terminal described above can be applied not only to the configuration and method of the embodiments described above but also to the embodiments described above so that all or some of the embodiments may be selectively combined have.

Claims (12)

A main body having a front case and a window mounted on the front case;
A display disposed to correspond to the window;
An antenna coil formed to wind along a rim of the window to transmit and receive a radio signal and receive a magnetic flux change around the main body;
A touch sensor disposed between the window and the display for sensing a touch input;
And a ferrite sheet disposed on one surface of the display and spaced apart from the window to remove noise from reception of the magnetic flux change and to form a distance from the antenna coil,
The window is formed of a light transmissive material and is divided into an opaque edge region and a central region surrounded by the edge region,
Wherein the antenna coil is disposed in an opaque edge region of the window,
The antenna coil is formed on the rear surface of the window in the opaque edge region of the window,
Wherein the ferrite sheet is disposed between the touch sensor and the display to form a buffer. delete The method according to claim 1,
Wherein the ferrite sheet extends along an edge of the display to form a loop. The method of claim 3,
Wherein the touch sensor and the display are spaced apart from each other by the ferrite sheet. The method according to claim 1,
Wherein the touch sensor includes electrode films on which a conductive pattern is formed,
Wherein the antenna coil is formed on one of the electrode films. The method according to claim 1,
Wherein the antenna coil is disposed between the window and the touch sensor. delete The method according to claim 6,
Wherein the main body includes a bezel portion on which at least a part of the edge region is seated, and the antenna coil is disposed on the bezel portion. The method according to claim 6,
The window having front, back and side surfaces,
Wherein the antenna coil is formed to wind the side surface of the window. The method according to claim 1,
A touch sensor for sensing a touch input is disposed between the window and the display, a flexible circuit board is extended from the touch sensor,
Wherein the flexible circuit board is electrically connected to the antenna coil so that the radio signal can be processed. 11. The method of claim 10,
Wherein the flexible circuit board includes a first connection part connected to the touch sensor and a second connection part formed on a layer different from the first connection part and connected to the antenna coil. The method according to claim 1,
Wherein the display is received in a frame, and the antenna coil is wound on an outer circumferential surface of the frame.

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