KR102065406B1 - Mobile terminal - Google Patents

Abstract

A case having a full length therein and including a curved portion; And an antenna pattern attached directly to the curved portion of the case, wherein the antenna pattern includes a metal layer made of a conductive material and an adhesive layer between the metal layer and the case. Smoothly attached to the curved surface without wrinkles, the problem of performance degradation of the antenna caused by the wrinkles can be solved.

Description

Mobile terminal {MOBILE TERMINAL}

The present invention relates to a mobile terminal having an antenna attached to a case.

Terminal can move It may be divided into a mobile terminal (portable terminal) and a stationary terminal according to whether or not. 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.

As the terminal functions are diversified, for example, such a terminal is a multimedia player having a complex function such as taking a picture or a video, playing a music or video file, playing a game, or receiving a broadcast. Is being implemented.

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. In recent years, as the wireless communication schemes are diversified, the number of antennas mounted on the terminal increases, and the placement of the antenna is very important because the transmit / receive rate varies greatly according to the position of the antenna. The antenna can be mounted on the surface of the case to increase the transmission and reception, and the structure of the antenna that can be in close contact with the surface of the case has been studied.

An object of the present invention is to provide a mobile terminal that can be in close contact with the antenna pattern attached to the case without wrinkles or lifting.

A case having a full length therein and including a curved portion; And an antenna pattern attached directly to the curved portion of the case, wherein the antenna pattern includes a metal layer made of a conductive material and an adhesive layer between the metal layer and the case.

In this case, the curved portion may include an edge portion formed of two or more curved surfaces.

The antenna pattern may include a curved pattern located at an edge portion of the case.

The curve pattern may include a first curve pattern located outside and a second curve pattern located inside and smaller in curvature than the first curve pattern.

The antenna pattern may further include a color layer stacked on the metal layer and having the same color as that of the case.

The color layer may not further be stacked, and may further include a terminal unit electrically connected to the main board.

The antenna may be attached to the inner side of the case.

According to at least one embodiment of the present invention, the antenna of the present invention can be smoothly attached to the curved surface without wrinkles so that the problem of performance degradation caused by the wrinkles can be solved.

The effects obtainable in the present invention are not limited to the above-mentioned effects, and other effects not mentioned above may 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.
4 illustrates an antenna pattern attached to a case of a mobile terminal according to an embodiment of the present invention.
5 is a cross-sectional view showing an antenna pattern of a mobile terminal according to an embodiment of the present invention.
6 is a cross-sectional view showing an antenna pattern of a mobile terminal according to another embodiment of the present invention.
7 is a plan view illustrating a state before attachment to a case of an antenna pattern of a mobile terminal according to an embodiment of the present invention.
8 is a cross-sectional view showing a method of attaching an antenna pattern of a mobile terminal according to an embodiment of the present invention to a case.

As the inventive concept allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

Terms including ordinal numbers such as first and second may be used to describe various components, but the components are not limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

When a component is referred to as being "connected" or "connected" to another component, it may be directly connected to or connected to that other component, but it may be understood that other components may be present in between. Should be. On the other hand, when a component is said to be "directly connected" or "directly connected" to another component, it should be understood that there is no other component in between.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise.

In this application, the terms "comprises" or "having" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

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.

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 description thereof will be omitted.

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

However, it will be readily apparent to those skilled in the art that the configuration according to the embodiments described herein may also be applied to fixed terminals such as digital TVs, desktop computers, etc., except when applicable only to mobile terminals.

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. The unit 170, the controller 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, a location information module 115, and the like. .

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. Two or more broadcast receiving modules may be provided to the mobile terminal 100 for simultaneous broadcast reception or switching of broadcast channels for at least two broadcast channels.

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 associated information refers to 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 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 include at least one of a base station, an external terminal, and a server on a mobile communication network such as, but not limited to, global transparent parent for mobile communications (GSM), code division multiple access (CDMA), and wideband CDMA (WCDMA). Send and receive wireless signals. 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 include Wireless LAN (Wi-Fi), Wireless Broadband (Wibro), World Interoperability for Microwave Access (Wimax), High Speed Downlink Packet Access (HSDPA), GSM, CDMA, WCDMA, Long Term Evolution), but is not limited to such.

In view of the fact that the wireless Internet access by Wibro, HSDPA, GSM, CDMA, WCDMA, LTE, etc. is made through a mobile communication network, the wireless Internet module 113 for performing a wireless Internet access through the mobile communication network is the mobile communication module. It can be understood as a kind of (112).

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. According to the current technology, the GPS module 115 calculates distance information and accurate time information away from three or more satellites, and then applies trigonometric methods to the calculated information, thereby providing three-dimensional chords according to latitude, longitude, and altitude. The location information can be calculated accurately. Currently, a method of calculating position and time information using three satellites and correcting the error of the calculated position and time information using another satellite is widely used. In addition, the GPS module 115 may calculate speed information by continuously calculating the current position in real time.

The wireless communication module 110 transmits and receives a signal by transmitting and receiving a signal of a specific frequency doing  Antenna is used. As the types of the wireless communication module 110 mounted on the mobile terminal are diversified, Mounted  The number and types of antennas are increasing.

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 may be converted into a form transmittable to the mobile communication base station through the mobile communication module 112 and output in the call mode. 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 button 136 and a touch sensor (static pressure / capacitance) 137 positioned on the front, rear, or side surfaces of the mobile terminal 100, and although not shown, a keypad (key pad) ), A dome switch, a jog wheel, and a jog switch may be further included.

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 proximity sensor will be described later.)

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 a photographed and / or received image, 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 may be a transparent OLED (TOLED). 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, a plurality of display units may be spaced apart or integrally disposed on one surface of the mobile terminal 100, or may be disposed on different surfaces, respectively.

When the display unit 151 and the touch sensor 137 form a mutual layer structure or are integrally formed (hereinafter referred to as a touch screen), the display unit 151 may also be used as an input device in addition to an output device. Can be. For example, when the touch sensor 137 has a form of a touch film, a touch sheet, or a touch pad, the touch sensor 137 may be stacked on the display unit 151 to form a layer structure. It can be made integrally by including.

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

When there is a touch input to the touch sensor 137, the corresponding signal (s) is sent to a touch controller (not shown). 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.

The proximity sensor 141 may be disposed in an inner region of the mobile terminal surrounded by the touch screen or near 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.

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. Since the video signal or the audio signal may be output through the display unit 151 or the sound output module 152, in this case, the display unit 151 and the sound output module 152 may be a kind of alarm unit 153. May be classified.

The haptic module 154 generates various haptic 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.

The memory unit 160 may store a program for processing and controlling the controller 180, and temporarily stores input / output data (for example, a phone book, a message, an audio, a still image, a video, etc.). It can also perform a function for. The memory unit 160 may store a frequency of use of each of the data (eg, a phone number, a message, and a frequency of use of each multimedia).

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

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, wired / wireless headset ports, external charger ports, wired / wireless data ports, memory card ports, ports for connecting devices with identification modules, audio input / output (I / O) ports, The video input / output (I / O) port, the 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. A device equipped with an identification module (hereinafter referred to as an 'identification device') may be manufactured in the form of a smart card. Therefore, the identification device may be connected to the terminal 100 through a port.

The interface unit may be a passage through which power from the cradle is supplied to the mobile terminal 100 when the mobile terminal 100 is connected to an external cradle, or various command signals input from the cradle by a user may be transferred. It may be a passage that is delivered to the terminal. Various command signals or power input from the cradle may be operated as signals 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, 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. The power supply unit 190 may include, for example, a battery, a connection port, a power supply control unit, and a charging monitoring unit.

The battery may be a built-in battery made to be chargeable, and may be detachably coupled to the terminal body for charging. The connection port may be configured as an example of the interface 170 to which an external charger for supplying power for charging the battery is electrically connected.

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.

2 is a front perspective view of an example of a mobile 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 body of the mobile terminal 100 includes cases 101 and 102 forming an 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.

In some cases, an electronic component may be mounted on the surface of the rear case 102. Electronic components mounted on the surface of the rear case 102 include a battery, a USIM card, a memory card, and the like, which the user needs to remove. In this case, the rear case 102 may further include a rear cover 103 for covering the surface thereof. The rear cover 103 is formed of a structure that is easily removable by the user, and when the rear cover 103 is removed, the surface of the rear case 102 is exposed.

When the rear cover 103 is coupled as shown in FIG. 3, only a part of the side surface of the rear case 102 may be exposed, and when the size of the rear cover 103 is reduced, the rear surface of the rear case 102 may be exposed. Some may be exposed. When the rear cover 103 covers the entire rear surface of the rear case 102, the rear cover 103 may include an opening for exposing the camera 121 ′ or the sound output module 152 ′ to the outside.

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

A display unit 151, a sound output module 152, a camera 121, a user input unit 130/131, 132, a microphone 122, an interface 170, and the like may be disposed in the terminal cases 101 and 102.

The display unit 151 occupies most of the main surface of the front case 101. The sound output module 152 and the camera 121 are disposed in regions adjacent to one end of both ends of the display unit 151, and the user input unit 131 and the microphone 122 are disposed in regions 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 manipulated to receive a command for controlling the operation of the mobile terminal 100, and may include a plurality of manipulation units 131, 132, and 133. The manipulation units 131, 132, 133 may also be collectively referred to as a manipulating portion.

Content input by the first or second manipulation units 131 and 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 adjusting the volume of the sound output from the sound output module 152. The third manipulation unit 133 may receive a command such as activating / deactivating the touch recognition mode of the display unit 151.

The operation units 131, 132, and 133 may have a button method for recognizing when a user applies pressure. In addition to the display unit 151, the operation units 131, 132, and 133 may include a touch sensor 137. Therefore, the user's command may be input only by the user's touch.

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

Referring to FIG. 3, a camera 121 ′ may be additionally mounted on the rear of the terminal body, that is, the rear case 102. The camera 121 ′ has a photographing direction substantially opposite to that of 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 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-up.

The flash 123 and the mirror 124 may be 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 module 152 ′ may be further disposed on the rear side of the terminal body. The sound output module 152 ′ at the rear of the body may implement a stereo function together with the sound output module 152 (see FIG. 2) at the front of the body, and may be used to implement a speakerphone mode during a call.

The antenna 116 for receiving a broadcast signal may be additionally disposed on the side of the terminal body. The antenna 116 constituting a part of the broadcast receiving module 111 (refer to FIG. 1) may be installed to be pulled out of the terminal body.

4 is a perspective view illustrating an antenna attached to a case of the present invention. The antenna attached to the surface of the conventional case (101, 102, 103) is implemented by using a flexible circuit board, or by forming an antenna pattern on the film member and attaching it to the mobile terminal case (101, 102, 103) do.

However, the mobile terminal may be curved to the end for comfort when holding the mobile terminal 100, and also for a smooth appearance design. In the case where the antenna pattern 200 is formed on a flat portion of the casings 101, 102, 103 or a portion having a smooth uniaxial curved surface, there is no big problem even if the conventional method is used.

However, it is difficult to attach an antenna pattern implemented in a two-dimensional plane to a biaxial curved surface that is a curved surface both in the cross section in the first direction and in the second direction perpendicular thereto. Cubes with biaxial surfaces, such as spheres, are difficult to create using planar developments, but cubes with uniaxial surfaces, such as cylinders, can be created using planar developments.

The corner portion 102 ′ where the two sides meet meets the first curved surface in the first direction and the second curved surface in the second direction to form a biaxial curved surface. A flexible circuit board designed in two dimensions on the corner portion 102 'formed of a biaxial curved surface, or when the film is attached to the cases 101, 102, and 103, the flat flexible substrate or the film is folded and wrinkles are generated. .

The edge portion 102 'of the rear case 102 or the edge portion 102' of the battery cover 103 detachably attached to the rear case 102 may be formed in a biaxial curved surface. As the number of antennas increases, the antenna pattern 200 of the present invention may be formed at the corners 102 'of the rear case 102 in order to form the radiators of the antennas as far as possible.

The present invention is characterized in that only the antenna pattern 200 made of a conductive material is attached to the cases (101, 102, 103) without the film or flexible circuit board. The antenna pattern 200 of the conductive material is generally made of metal, the shape of the metal may be changed within a certain range when pressure or heat is applied. In addition, unlike a film or a flexible substrate, wrinkles do not easily occur because they are linearly formed in a narrow area instead of a large plate shape.

The pattern of the present invention can also be neatly attached to the corner portion including the uniaxial curved surface of the mobile terminal case (101, 102, 103), to solve the problem such as transmission and reception degradation caused by the antenna pattern 200 does not adhere properly Can be. The problem that the disconnection occurs due to the antenna pattern 200 can be solved according to the present invention.

FIG. 5 is a cross-sectional view of the antenna pattern 200 according to the present invention. The antenna pattern 200 attached to the surfaces of the cases 101, 102, and 103 is mainly composed of a conductive layer, that is, a metal layer 210 made of metal such as copper. In this configuration, an adhesive layer 230 is provided between the metal layer 210 and the cases 101, 102, and 103 to attach the metal layer 210 to the cases 101, 102, and 103. Attach to.

In addition, when forming the case 101, 102, 103 inside the case so as not to be visible after assembly, it is not a big problem, but when formed outside the removable battery cover 103 or the rear case 102, the metal layer 210 on the surface When exposed, the pattern may be broken and there is a problem of deteriorating the appearance. Thus, as shown in FIG. 5, the metal layer 210 may further include a color layer 220 having the same color as that of the rear case 102 or the rear cover 103.

In this case, as shown in FIG. 4, the metal layer 210 may be exposed without partially forming the color layer 220, thereby forming a terminal 215 for electrically connecting the main substrate.

Alternatively, when grooves corresponding to the antenna patterns 200 are formed in the cases 101, 102, and 103 in advance as shown in FIG. 6, the antenna patterns 200 are buried in the cases 101, 102, and 103 and the cases 101, 102. , 103) can be formed so as not to protrude to the surface.

7 is a view showing a state before attaching the antenna pattern 200 of the present invention to the case (101, 102, 103). The metal layer 210 is formed by etching or printing, and the base layer 240 is attached after the color layer 220 is formed thereon. When the color layer 220 is not necessary, the color layer 220 may be directly attached onto the metal layer 210.

The base layer 240 may use a flexible resin, or may use a transparent material to suit the attachment position. The adhesion between the base layer 240 and the printing layer or the metal layer 210 uses a weak adhesive pressure (225, see Fig. 8). It is for temporary attachment and can be separated with weak force.

Since the antenna pattern 200 is attached to the corners, the antenna pattern 200 is bent in an L shape. At this time, the bent portion is formed in a curve, and when it is attached to the case (101, 102, 103), it is possible to deform naturally by applying heat or pressure.

In particular, the portion 211 which is located outside and stretches when attached to the cases 101, 102 and 103 forms a gentle curve of large curvature, and the portion 212 that is folded when the cases 101, 102 and 103 are attached to the inside ) Can make a small curvature curve.

The angle α of the antenna pattern 200 bent in a "-" shape is formed at an obtuse angle of more than 90 ° in a two-dimensional planar state, so that it is naturally bent when attached to the corners of the cases 101, 102, and 103.

The base layer 240 is cut along the outer line of the antenna pattern 200 to form a guide hole 241. The guide hole 241 is for mounting the antenna pattern 200 to the jig, and when attached to a plane, the base layer 240 does not need to be folded or bent, so the case 101 or 102 can be easily installed even without the guide hole 241. , 103, but can be attached to the curved surface of the case edge 102 'as in the present invention, the base layer 240 is bent, so the guide hole 241 is required to adjust the exact position.

When the adhesive layer 230 is formed on the metal layer 210 seated on the base layer 240 and contacted with the surfaces of the cases 101, 102, 103 as shown in FIG. 8, the cases 101, 102, 103 are formed by the adhesive layer 230. Attached). In this case, an adhesive 225 having a weak adhesive force is applied between the base layer 240 and the antenna pattern 200, thereby being easily separated.

As described above, according to at least one embodiment of the present invention, the antenna of the present invention can be smoothly attached to the curved surface without wrinkles, thereby solving the problem of performance degradation of the antenna caused by the wrinkles.

It is apparent to those skilled in the art that the present invention can be embodied in other specific forms without departing from the spirit and essential features of the present invention.

Accordingly, the above detailed description should not be construed as limiting in all aspects and should be considered as illustrative. The scope of the invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the invention are included in the scope of the invention.

100: mobile terminal 110: wireless communication unit
120: A / V input / output unit 130: user input unit
140: sensing unit 150: output unit
160: memory 170: interface unit
180: control unit 190: power supply unit
102: rear case 102 ': curved portion
200: antenna pattern 215: terminal
210: metal layers 211, 212: curved
220: color layer 230: adhesive layer
240: base layer

Claims (7)

A case having an electric length therein and including a flat portion and a curved portion surrounding the flat portion; And
An antenna pattern is directly attached to the curved portion of the case,
The curved portion
A first curved surface in a first direction, a second curved surface in a second direction perpendicular to the first direction, and a biaxial curved surface where the first curved surface and the second curved surface are formed to meet each other,
The antenna pattern is
Is provided over the first curved surface, the second curved surface and the biaxial curved surface,
A metal layer made of a conductive material, an adhesive layer between the metal layer and the case, and a curved pattern provided at a position corresponding to the biaxial curved surface,
The curve pattern is
A first curved pattern positioned in an outer direction of the case and a second curved pattern positioned in an inner direction of the case;
The curvature of the second curved pattern is less than the curvature of the first curved pattern. delete delete delete The method of claim 1,
The antenna pattern is,
And a colored layer stacked on the metal layer and having the same color as that of the case. The method of claim 5,
The terminal is not laminated, the mobile terminal further comprises a terminal portion electrically connected to the main substrate.
delete

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