WO2020130207A1 - Mobile terminal - Google Patents

Abstract

Provided is a mobile terminal comprising: a side case forming the appearance of the side surface thereof; a window forming the appearance of the front surface thereof; a rear case forming the appearance of the rear surface thereof; a main board which is mounted inside the side case, the window, and the rear case and includes a wireless communication unit and a control unit; a display unit stacked on the rear surface of the window; a color film stacked on the inner surface of the rear case; a first antenna which is formed on the display unit and includes a first terminal exposed through the rear surface of the display unit; a second antenna which is integrally formed on the color film and includes a second terminal exposed through the front surface of the color film; and a connection module which is in contact with the first terminal and the second terminal to electrically connect the first antenna and the second antenna to the main substrate.

Description

Mobile terminal

The present invention relates to a mobile terminal capable of increasing the number of antennas mounted on a mobile terminal using a transparent antenna.

Terminals can be divided into mobile terminals (mobile/portable terminals) and stationary terminals (mobile terminals) depending on whether they can be moved. Again, the mobile terminal may be divided into a handheld terminal and a vehicle mounted terminal according to whether the user can directly carry it.

The functions of mobile terminals are diversifying. For example, there are functions for data and voice communication, photo and video shooting through a camera, voice recording, music file playback through a speaker system, and image or video output on the display. In some terminals, an electronic game play function is added or a multimedia player function is performed. In particular, recent mobile terminals can receive multicast signals that provide visual content such as broadcast and video or television programs.

As the functions of the terminal are diversified, for example, in the form of a multimedia player equipped with multiple functions such as taking a picture or a video, playing a music or video file, receiving a game, or broadcasting, etc. Is being implemented.

As the functions of these terminals are expanded, various types of wireless communication are applied to exchange data wirelessly. As the multimedia function has been expanded, it is necessary to watch a video in UHD image quality or use virtual reality (VR) content only through mobile communication, thereby requiring a technology to send and receive more data faster.

Accordingly, LTE communication (Long Term Evolution, 4th generation mobile communication) appeared to transmit a larger amount of data quickly, and LTE communication has also advanced to a technology that is twice as fast as LTE-A and wide area LTE. In order to increase the transmission speed, two or more frequency bands are used simultaneously or the frequency bandwidth is increased to increase the amount of data transmission. In order to increase the frequency band or simultaneously use signals of different frequency bands, a method in which the number of antennas is increased was used.

There is a limit in increasing the bandwidth or using signals of a plurality of bands, so the fifth generation mobile communication technology will appear. Fifth generation technology is not only advantageous for transmitting large amounts of data, but also. Unlike the existing 4G mobile communication technology, the response speed is fast. As a higher frequency band signal is used than the 4th generation mobile communication, a completely different type of antenna is required.

An object of the present invention is to provide a mobile terminal capable of increasing the number of antennas mounted on a mobile terminal using a transparent antenna in order to provide an antenna for transmitting and receiving signals used for 5G mobile communication together with an existing LTE antenna. Should be

A side case forming a side appearance; A window forming the front appearance; A rear case forming a rear appearance; A main substrate mounted inside the side case, window, and rear case and including a wireless communication unit and a control unit; A display unit stacked on the rear surface of the window; A color film laminated on the inner surface of the rear case; A first antenna formed on the display unit and including a first terminal exposed on a rear surface of the display unit; A second antenna formed integrally with the color film and including a second terminal exposed on the front surface of the color film; And a connection module in contact with the first terminal and the second terminal to electrically connect the first antenna and the second antenna to the main substrate.

The display unit may include an active region in which an image is output and an inactive region positioned around the active region, and the first terminal may be located in the inactive region.

The first antenna and the second antenna are array antennas including a plurality of antenna radiation patches spaced apart in a first direction, and the plurality of antenna radiation patches are 1/2 effective wavelength lengths of signals transmitted and received by the wireless communication unit. It may have a size corresponding to.

The distance between the antenna radiation patches may be formed to correspond to the 1/2 wavelength length of the signal transmitted and received by the wireless communication unit.

The antenna radiation patch of each of the first direction of the second direction orthogonal to the first direction, the power supply line connected to the first terminal, and the signal transmitted and received by the wireless communication unit located between the power supply line and the radiation patch An impedance matching line corresponding to 1/4 effective wavelength length may be further included.

The plurality of antenna radiation patches may further include an auxiliary patch spaced by a half wavelength length of a signal transmitted and received by the wireless communication unit in a second direction perpendicular to the first direction.

The size of the radiation patch and the auxiliary patch may be formed differently.

The array antenna may include 4n antenna radiation patches.

An interval between the first antenna and the second antenna may be formed to correspond to a 1/2 wavelength path of a signal transmitted and received by the wireless communication unit.

The first antenna and the second antenna may include MIMO antennas.

The controller may remove noise by synthesizing a signal received from the first antenna and a signal received from the second antenna.

The antenna radiation patch of the first antenna may include a metal material and a grid structure.

The main substrate includes a feeding portion and a ground portion, and the first antenna and the second antenna include a strip antenna including a first conductive strip connected to the ground portion and a second conductive strip connected to the feeding portion, The first conductive strip and the second conductive strip may be arranged spaced apart in the first direction.

The strip antenna may include a plurality of parallel arrangements in the first direction, and the arrangement order of the first conductive strip and the second conductive strip of the neighboring strip antenna may be different.

The second antenna may include: an antenna radiation patch stacked on the front side of the color film; An insulating layer covering the antenna radiation patch; And the second terminal exposed on one side of the insulating layer.

The mobile terminal according to the present invention can mount the antenna on the display unit and the rear case to expand the number of antennas that can be mounted in a limited space.

In addition, the structure of connecting the antenna mounted on the display unit and the rear case and the main substrate is simplified, so that the antenna can be mounted on the display unit without increasing the size of the side bezel.

Further scope of applicability of the present invention will become apparent from the following detailed description. However, various changes and modifications within the spirit and scope of the present invention may be clearly understood by those skilled in the art, and thus, it should be understood that specific embodiments such as detailed description and preferred embodiments of the present invention are given by way of illustration only.

1A is a block diagram illustrating a mobile terminal related to the present invention.

1B and 1C are conceptual views of an example of a mobile terminal related to the present invention viewed from different directions.

2 is a view showing a first antenna mounted on the display unit of the present invention.

3 is a view showing a second antenna mounted on the rear case of the present invention.

4 is a view for explaining a connection method between the first antenna and the main board.

5 is a view showing a connection module for connecting the first antenna and the second antenna of the present invention to the main substrate.

6 to 8 are diagrams showing a millimeter wave (mmWave) antenna for 5G communication.

9 is a view for explaining the detailed configuration of the radiation patch of the antenna of the present invention.

10 is a graph of reflection coefficients of the antenna of FIG. 9.

11 is a view showing an example of a strip antenna of the present invention.

12 is a view showing another embodiment of the strip antenna of the present invention.

Hereinafter, exemplary embodiments disclosed herein will be described in detail with reference to the accompanying drawings, but the same or similar elements are assigned the same reference numbers regardless of the reference numerals, and overlapping descriptions thereof will be omitted. The suffixes "modules" and "parts" for the components used in the following description are given or mixed only considering the ease of writing the specification, and do not have meanings or roles distinguished from each other in themselves. In addition, in describing the embodiments disclosed in this specification, detailed descriptions of related well-known technologies are omitted when it is determined that they may obscure the gist of the embodiments disclosed herein. In addition, the accompanying drawings are only for easy understanding of the embodiments disclosed herein, and the technical spirit disclosed in the specification is not limited by the accompanying drawings, and all modifications included in the spirit and technical scope of the present invention , It should be understood to include equivalents or substitutes.

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 other components.

When an element is said to be "connected" or "connected" to another component, it is understood that other components may be directly connected or connected to the other component, but other components may exist in the middle. It 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 no other component exists in the middle.

Singular expressions include plural expressions unless the context clearly indicates otherwise.

In this application, the terms "comprises" or "have" are intended to indicate the presence of features, numbers, steps, operations, components, parts or combinations thereof described in the specification, one or more other features. It should be understood that the existence or addition possibilities of fields or numbers, steps, operations, components, parts or combinations thereof are not excluded in advance.

Mobile terminals described herein include mobile phones, smart phones, laptop computers, digital broadcasting terminals, personal digital assistants (PDAs), portable multimedia players (PMPs), navigation, and slate PCs. , Tablet PC (tablet PC), ultrabook (ultrabook), wearable device (wearable device, for example, a watch-type terminal (smartwatch), glass-type terminal (smart glass), HMD (head mounted display), etc. may be included have.

However, a configuration according to the embodiment described in the present specification can be easily recognized by those skilled in the art that it can also be applied to a fixed terminal such as a digital TV, a desktop computer, and a digital signage, except when applicable only to a mobile terminal. will be.

1A to 1C, FIG. 1A is a block diagram illustrating a mobile terminal related to the present invention, and FIGS. 1B and 1C are conceptual views of an example of a mobile terminal related to the present invention viewed from different directions.

The mobile terminal 100 includes a wireless communication unit 110, an input unit 120, a sensing unit 140, an output unit 150, an interface unit 160, a memory 170, a control unit 180, and a power supply unit 190 ) And the like. The components shown in FIG. 1A are not essential for implementing a mobile terminal, so the mobile terminal described herein may have more or fewer components than those listed above.

More specifically, the wireless communication unit 110 among the components, between the mobile terminal 100 and the wireless communication system, between the mobile terminal 100 and another mobile terminal 100, or the mobile terminal 100 and an external server It may include one or more modules that enable wireless communication between. In addition, the wireless communication unit 110 may include one or more modules connecting the mobile terminal 100 to one or more networks.

The wireless communication unit 110 may include at least one of 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 input unit 120 may include a camera 121 for inputting a video signal or a video input unit, a microphone for inputting an audio signal (microphone 122), or an audio input unit, a user input unit 123 for receiving information from a user, for example , A touch key, a mechanical key, and the like. The voice data or image data collected by the input unit 120 may be analyzed and processed by a user's control command.

The sensing unit 140 may include one or more sensors for sensing at least one of information in the mobile terminal, surrounding environment information surrounding the mobile terminal, and user information. For example, the sensing unit 140 includes a proximity sensor 141, an illumination sensor 142, a touch sensor, an acceleration sensor, a magnetic sensor, and gravity G-sensor, gyroscope sensor, motion sensor, RGB sensor, infrared sensor (IR sensor), fingerprint scan sensor, ultrasonic sensor , Optical sensor (e.g., camera (see 121)), microphone (refer to 122), battery gauge, environmental sensor (e.g. barometer, hygrometer, thermometer, radioactivity sensor, Thermal sensor, gas sensor, etc.), and a chemical sensor (eg, an electronic nose, a health care sensor, a biometric sensor, etc.). Meanwhile, the mobile terminal disclosed in the present specification may combine and use information sensed by at least two or more of these sensors.

The output unit 150 is for generating output related to vision, hearing, or tactile sense, and includes at least one of a display unit 151, an audio output unit 152, a hap tip module 153, and an optical output unit 154 can do. The display unit 151 may form a mutual layer structure with the touch sensor or may be integrally formed, thereby realizing a touch screen. The touch screen may function as a user input unit 123 that provides an input interface between the mobile terminal 100 and the user, and at the same time, provide an output interface between the mobile terminal 100 and the user.

The interface unit 160 serves as a passage with various types of external devices connected to the mobile terminal 100. The interface unit 160 connects a device equipped with a wired/wireless headset port, an external charger port, a wired/wireless data port, a memory card port, and an identification module. It may include at least one of a port, an audio input/output (I/O) port, a video input/output (I/O) port, and an earphone port. In the mobile terminal 100, in response to an external device being connected to the interface unit 160, appropriate control related to the connected external device may be performed.

In addition, the memory 170 stores data supporting various functions of the mobile terminal 100. The memory 170 may store a number of application programs (applications) or data for operation of the mobile terminal 100 and commands that are driven by the mobile terminal 100. At least some of these applications can be downloaded from external servers via wireless communication. In addition, at least some of these application programs may exist on the mobile terminal 100 from the time of shipment for the basic functions of the mobile terminal 100 (for example, an incoming call, a calling function, a message reception, and a calling function). Meanwhile, the application program may be stored in the memory 170 and installed on the mobile terminal 100 to be driven by the controller 180 to perform an operation (or function) of the mobile terminal.

In addition to the operations related to the application program, the controller 180 generally controls the overall operation of the mobile terminal 100. The controller 180 may provide or process appropriate information or functions to the user by processing signals, data, information, etc. input or output through the above-described components or by driving an application program stored in the memory 170.

In addition, the controller 180 may control at least some of the components described with reference to FIG. 1A to drive an application program stored in the memory 170. Furthermore, the controller 180 may operate by combining at least two or more of the components included in the mobile terminal 100 to operate the application program.

Under the control of the controller 180, the power supply unit 190 receives external power and internal power to supply power to each component included in the mobile terminal 100. The power supply unit 190 includes a battery, and the battery may be a built-in battery or a replaceable battery.

At least some of the components may operate in cooperation with each other to implement an operation, control, or control method of a mobile terminal according to various embodiments described below. In addition, the operation, control, or control method of the mobile terminal may be implemented on the mobile terminal by driving at least one application program stored in the memory 170.

Hereinafter, before looking at various embodiments implemented through the mobile terminal 100 described above, the components listed above will be described in more detail with reference to FIG. 1A.

First, referring to the wireless communication unit 110, the broadcast reception module 111 of the wireless communication unit 110 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 mobile communication module 112 includes technical standards or communication methods for mobile communication (eg, Global System for Mobile Communication (GSM), Code Division Multi Access (CDMA), Code Division Multi Access 2000 (CDMA2000), EV -Enhanced Voice-Data Optimized or Enhanced Voice-Data Only (DO), Wideband CDMA (WCDMA), High Speed Downlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA), Long Term Evolution (LTE), LTE-A (Long Term Evolution-Advanced) transmits and receives wireless signals to and from at least one of a base station, an external terminal and a server on a mobile communication network constructed according to (Long Term Evolution-Advanced).

The radio signal may include various types of data according to transmission and reception of a voice call signal, a video call signal, or a text/multimedia message.

The wireless Internet module 113 refers to a module for wireless Internet access, and may be built in or external to the mobile terminal 100. The wireless Internet module 113 is configured to transmit and receive wireless signals in a communication network according to wireless Internet technologies.

Wireless Internet technologies include, for example, WLAN (Wireless LAN), Wi-Fi (Wireless-Fidelity), Wi-Fi (Wireless Fidelity) Direct, DLNA (Digital Living Network Alliance), WiBro (Wireless Broadband), WiMAX (World) Interoperability for Microwave Access (HSDPA), High Speed Downlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA), Long Term Evolution (LTE), Long Term Evolution-Advanced (LTE-A), and the wireless Internet module ( 113) transmits and receives data according to at least one wireless Internet technology in a range including the Internet technology not listed above.

In view of the wireless Internet access by WiBro, HSDPA, HSUPA, GSM, CDMA, WCDMA, LTE, LTE-A, etc., through the mobile communication network, the wireless Internet module 113 that performs wireless Internet access through the mobile communication network 113 ) May be understood as a type of the mobile communication module 112.

The short-range communication module 114 is for short-range communication, Bluetooth™, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, NFC (Near Field Communication), by using at least one of Wi-Fi (Wireless-Fidelity), Wi-Fi Direct, Wireless USB (Wireless Universal Serial Bus) technology, it can support short-range communication. The short-range communication module 114, between the mobile terminal 100 and the wireless communication system through a wireless area network (Wireless Area Networks), between the mobile terminal 100 and another mobile terminal 100, or mobile terminal 100 ) And other mobile terminals (100, or an external server) is located between the network can support wireless communication. The short-range wireless communication network may be wireless personal area networks (Wireless Personal Area Networks).

Here, the other mobile terminal 100 is a wearable device (e.g., a smartwatch) or smart glasses capable of exchanging data (or interlocking) with the mobile terminal 100 according to the present invention. (smart glass), HMD (head mounted display). The short-range communication module 114 may detect (or recognize) a wearable device capable of communicating with the mobile terminal 100 around the mobile terminal 100. Furthermore, when the sensed wearable device is a device authenticated to communicate with the mobile terminal 100 according to the present invention, the controller 180 may include at least a portion of data processed by the mobile terminal 100, and the short-range communication module ( 114) to the wearable device. Therefore, the user of the wearable device can use data processed by the mobile terminal 100 through the wearable device. For example, according to this, the user performs a phone call through the wearable device when a call is received by the mobile terminal 100, or when a message is received by the mobile terminal 100, the received message is received through the wearable device. It is possible to check the message.

The location information module 115 is a module for obtaining a location (or current location) of a mobile terminal, and a typical example thereof is a Global Positioning System (GPS) module or a Wireless Fidelity (WiFi) module. For example, if the mobile terminal utilizes a GPS module, the location of the mobile terminal can be obtained using a signal sent from a GPS satellite. As another example, if the mobile terminal utilizes a Wi-Fi module, the location of the mobile terminal may be obtained based on information of a Wi-Fi module and a wireless access point (AP) that transmits or receives a wireless signal. If necessary, the location information module 115 may perform any function of the other modules of the wireless communication unit 110 to obtain data regarding the location of the mobile terminal by substitution or additionally. The location information module 115 is a module used to acquire the location (or current location) of the mobile terminal, and is not limited to a module that directly calculates or acquires the location of the mobile terminal.

Next, the input unit 120 is for input of image information (or signals), audio information (or signals), data, or information input from a user. For input of image information, one mobile terminal 100 Alternatively, a plurality of cameras 121 may be provided. The camera 121 processes image frames such as still images or moving pictures obtained by an image sensor in a video call mode or a shooting mode. The processed image frame may be displayed on the display unit 151 or stored in the memory 170. Meanwhile, the plurality of cameras 121 provided in the mobile terminal 100 may be arranged to form a matrix structure, and through the camera 121 forming the matrix structure, various angles or focuses may be applied to the mobile terminal 100. A plurality of image information may be input. In addition, the plurality of cameras 121 may be arranged in a stereo structure to acquire left and right images for realizing a stereoscopic image.

The microphone 122 processes external sound signals as electrical voice data. The processed voice data may be used in various ways according to a function (or a running application program) being performed by the mobile terminal 100. Meanwhile, various noise reduction algorithms for removing noise generated in the process of receiving an external sound signal may be implemented in the microphone 122.

The user input unit 123 is for receiving information from a user. When information is input through the user input unit 123, the controller 180 may control the operation of the mobile terminal 100 to correspond to the input information. . The user input unit 123 is a mechanical input means (or a mechanical key, for example, a button located on the front, rear or side of the mobile terminal 100, a dome switch, a jog wheel, And a jog switch) and a touch-type input means. As an example, the touch-type input means is made of a virtual key, a soft key or a visual key displayed on the touch screen through software processing, or a part other than the touch screen It may be made of a touch key (touch key) disposed on. Meanwhile, the virtual key or the visual key may be displayed on the touch screen while having various forms, for example, a graphic, text, icon, video, or the like. It can be made of a combination of.

Meanwhile, the sensing unit 140 senses at least one of information in the mobile terminal, surrounding environment information surrounding the mobile terminal, and user information, and generates a sensing signal corresponding thereto. The controller 180 may control driving or operation of the mobile terminal 100 based on the sensing signal, or perform data processing, function, or operation related to an application program installed in the mobile terminal 100. The representative sensors among various sensors that may be included in the sensing unit 140 will be described in more detail.

First, the proximity sensor 141 refers to a sensor that detects the presence or absence of an object approaching a predetermined detection surface or an object in the vicinity using mechanical force or infrared light, etc., without mechanical contact. The proximity sensor 141 may be provided with the proximity sensor 141 in the inner region of the mobile terminal wrapped by the touch screen described above or near the touch screen.

Examples of the proximity sensor 141 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 type proximity sensor, a magnetic type proximity sensor, and an infrared proximity sensor. When the touch screen is capacitive, the proximity sensor 141 may be configured to detect the proximity of the object with a change in electric field according to the proximity of the conductive object. In this case, the touch screen (or touch sensor) itself may be classified as a proximity sensor.

On the other hand, for convenience of description, the act of allowing the object to be recognized as being located on the touch screen without being touched on the touch screen is called a "proximity touch", and the touch The act of actually touching an object on the screen is called "contact touch". The location where an object is touched close on the touch screen refers to a location where the object is perpendicular to the touch screen when the object is touched close. The proximity sensor 141 may detect a proximity touch and a proximity touch pattern (eg, proximity touch distance, proximity touch direction, proximity touch speed, proximity touch time, proximity touch position, proximity touch movement state, etc.). have. Meanwhile, as described above, the controller 180 processes data (or information) corresponding to the proximity touch operation and the proximity touch pattern detected through the proximity sensor 141, and further, visual information corresponding to the processed data. It can be output on the touch screen. Furthermore, the controller 180 may control the mobile terminal 100 such that different operations or data (or information) are processed according to whether a touch on the same point on the touch screen is a proximity touch or a touch touch. .

The touch sensor uses a touch (or touch input) applied to the touch screen (or the display unit 151) using at least one of various touch methods such as a resistive film method, a capacitive method, an infrared method, an ultrasonic method, and a magnetic field method. Detect.

As an example, the touch sensor may be configured to convert a change in pressure applied to a specific part of the touch screen or capacitance generated in the specific part into an electrical input signal. The touch sensor may be configured to detect a location, an area, a pressure when a touch is touched, a capacitance when a touch object is touched on the touch screen, and the like. Here, the touch object is an object that applies a touch to the touch sensor, and may be, for example, a finger, a touch pen or a stylus pen, a pointer, and the like.

As such, when there is a touch input to the touch sensor, the signal(s) corresponding thereto is sent to the touch controller. The touch controller processes the signal(s) and then transmits corresponding data to the controller 180. Accordingly, the control unit 180 can know which area of the display unit 151 has been touched, and the like. Here, the touch controller may be a separate component from the controller 180, or may be the controller 180 itself.

Meanwhile, the controller 180 may perform different controls or perform the same control according to the type of the touch object that touches the touch screen (or a touch key provided in addition to the touch screen). Whether to perform different control or the same control according to the type of the touch object, it may be determined according to the current operating state of the mobile terminal 100 or the running application program.

On the other hand, the touch sensors and proximity sensors described above can be independently or in combination, such as short (or tap) touch on the touch screen, long touch, multi touch, drag touch ), flick touch, pinch-in touch, pinch-out touch, swipe touch, hovering touch, etc. Touch can be sensed.

The ultrasonic sensor may recognize location information of a sensing target using ultrasonic waves. Meanwhile, the control unit 180 may calculate the position of the wave generating source through information sensed by the optical sensor and the plurality of ultrasonic sensors. The position of the wave generator can be calculated by using a property in which light is much faster than ultrasonic waves, that is, a time when light reaches the optical sensor is much faster than a time when ultrasonic waves reach the ultrasonic sensor. More specifically, the position of the wave generating source may be calculated by using a time difference from the time at which ultrasonic waves reach the light as a reference signal.

Meanwhile, the camera 121, which has been described as the configuration of the input unit 120, includes at least one of a camera sensor (eg, CCD, CMOS, etc.), a photo sensor (or image sensor), and a laser sensor.

The camera 121 and the laser sensor may be combined with each other to detect a touch of a sensing target for a 3D stereoscopic image. The photo sensor may be stacked on a display element, which is configured to scan the movement of the sensing object close to the touch screen. More specifically, the photo sensor mounts photo diodes and TRs (transistors) in rows/columns to scan the contents loaded on the photo sensor using electrical signals that change according to the amount of light applied to the photo diode. That is, the photo sensor performs coordinate calculation of the sensing target according to the amount of change of light, and through this, location information of the sensing target may be obtained.

The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, the display unit 151 may display execution screen information of an application program driven by the mobile terminal 100, or UI (User Interface) or GUI (Graphic User Interface) information according to the execution screen information. .

In addition, the display unit 151 may be configured as a stereoscopic display unit for displaying a stereoscopic image.

A three-dimensional display method such as a stereoscopic method (glasses method), an auto stereoscopic method (glasses-free method), or a projection method (holographic method) may be applied to the stereoscopic display unit.

The audio output unit 152 may output audio data received from the wireless communication unit 110 or stored in the memory 170 in a call signal reception, call mode or recording mode, voice recognition mode, broadcast reception mode, or the like. The sound output unit 152 may also output sound signals related to functions (for example, call signal reception sound, message reception sound, etc.) performed by the mobile terminal 100. The sound output unit 152 may include a receiver, a speaker, a buzzer, and the like.

The haptic module 153 generates various tactile effects that the user can feel. A typical example of the tactile effect generated by the haptic module 153 may be vibration. The intensity and pattern of vibration generated in the haptic module 153 may be controlled by a user's selection or setting of a control unit. For example, the haptic module 153 may synthesize different vibrations and output them sequentially or sequentially.

In addition to vibration, the haptic module 153 is used for stimulation such as pin arrangement that vertically moves with respect to the contact skin surface, jet or suction power of air through a spray or intake, grazing on the skin surface, contact with an electrode, and electrostatic force. Various tactile effects can be generated, such as an effect caused by an effect and an effect of reproducing a feeling of cold and warm using an element capable of absorbing heat or generating heat.

The haptic module 153 may not only deliver a tactile effect through direct contact, but may also be implemented so that the user can feel the tactile effect through muscle sensations such as fingers or arms. Two or more haptic modules 153 may be provided according to a configuration aspect of the mobile terminal 100.

The light output unit 154 outputs a signal for notifying the occurrence of an event using the light of the light source of the mobile terminal 100. Examples of events occurring in the mobile terminal 100 may include receiving messages, receiving call signals, missed calls, alarms, schedule notifications, receiving emails, and receiving information through applications.

The signal output by the light output unit 154 is implemented as the mobile terminal emits light of a single color or multiple colors to the front or rear. The signal output may be terminated by the mobile terminal detecting the user's event confirmation.

The interface unit 160 serves as a passage with all external devices connected to the mobile terminal 100. The interface unit 160 receives data from an external device, receives power, transfers it to each component inside the mobile terminal 100, or allows data inside the mobile terminal 100 to be transmitted 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 equipped with an identification module (port), an audio input/output (I/O) port, a video input/output (I/O) port, an earphone port, and the like may be included in the interface unit 160.

On the other hand, the identification module is a chip that stores various information for authenticating the usage rights of the mobile terminal 100, a user identification module (UIM), a subscriber identity module (SIM), universal user authentication It may include a module (universal subscriber identity module; USIM). The device equipped with the identification module (hereinafter referred to as'identification device') may be manufactured in a smart card format. Accordingly, the identification device may be connected to the terminal 100 through the interface unit 160.

In addition, when the mobile terminal 100 is connected to an external cradle, the interface unit 160 becomes a passage through which power from the cradle is supplied to the mobile terminal 100, or is input from the cradle by a user. Various command signals may be passages to the mobile terminal 100. Various command signals or power inputted from the cradle may be operated as signals for recognizing that the mobile terminal 100 is correctly mounted on the cradle.

The memory 170 may store a program for the operation of the controller 180 and temporarily store input/output data (eg, a phone book, a message, a still image, a video, etc.). The memory 170 may store data related to various patterns of vibration and sound output when a touch is input on the touch screen.

The memory 170 is a flash memory type, a hard disk type, a solid state disk type, a SDD type (Silicon Disk Drive type), a multimedia card micro type ), card-type memory (eg SD or XD memory, etc.), random access memory (RAM), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read (EPMROM) It may include a storage medium of at least one type of -only memory (PROM), programmable read-only memory (PROM), magnetic memory, magnetic disk, and optical disk. The mobile terminal 100 may be operated in connection with a web storage performing a storage function of the memory 170 on the Internet.

Meanwhile, as described above, the controller 180 controls the operation related to the application program and the overall operation of the mobile terminal 100 in general. For example, when the state of the mobile terminal satisfies a set condition, the controller 180 may execute or release a lock state that limits the input of the user's control command to the applications.

In addition, the controller 180 performs control and processing related to voice calls, data communication, video calls, etc., or performs pattern recognition processing capable of recognizing handwriting input or drawing input on the touch screen as text and images, respectively. Can. Furthermore, in order to implement various embodiments described below on the mobile terminal 100 according to the present invention, the controller 180 may control any one or a combination of the above-described components.

The power supply unit 190 receives external power and internal power under the control of the controller 180 and supplies power required for the operation of each component. The power supply unit 190 includes a battery, and the battery may be a built-in battery made to be rechargeable, and may be detachably coupled to a terminal body for charging and the like.

In addition, the power supply unit 190 may include a connection port, and the connection port may be configured as an example of an interface 160 to which an external charger that supplies power for charging the battery is electrically connected.

As another example, the power supply unit 190 may be configured to charge the battery wirelessly without using the connection port. In this case, the power supply unit 190 uses one or more of an inductive coupling method based on a magnetic induction phenomenon from an external wireless power transmission device or a magnetic resonance coupling method based on an electromagnetic resonance phenomenon. Power can be delivered.

Meanwhile, various embodiments below may be implemented in a recording medium readable by a computer or a similar device using, for example, software, hardware, or a combination thereof.

1B and 1C, the disclosed mobile terminal 100 has a bar-shaped terminal body. However, the present invention is not limited to this, and may be applied to various structures such as a watch type, a clip type, a glass type, or a folder type, a flip type, a slide type, a swing type, a swivel type to which two or more bodies are movably coupled. . It will be related to a specific type of mobile terminal, but the description of a specific type of mobile terminal can be generally applied to other types of mobile terminals.

Here, the terminal body may be understood as a concept referring to the mobile terminal 100 as at least one aggregate.

The mobile terminal 100 includes a case (for example, a frame, a housing, a cover, etc.) forming an exterior. As illustrated, the mobile terminal 100 may include a front case 101 and a rear case 102. Various electronic components are disposed in the inner space formed by the combination of the front case 101 and the rear case 102. At least one middle case may be additionally disposed between the front case 101 and the rear case 102.

As illustrated, recently, a mobile terminal having a structure in which a window 151a located at the front of the display unit covers the entire front surface and omits the front case has been released, and has a side case 210 in a form surrounding the side circumference. You may. The window 151a, the side case 210, and the rear case 102 form an internal space, and in some cases, electronic components may be mounted on the rear case 102 as well. Electronic components that can be mounted on the rear case 102 include a removable battery, an identification module, and a memory card. In this case, a rear cover for covering the mounted electronic component may be detachably coupled to the rear case 102. Therefore, when the rear cover is separated from the rear case 102, the electronic components mounted on the rear case 102 are exposed to the outside.

These cases 102 and 210 may be formed by injection of synthetic resin or may be formed of metal, for example, stainless steel (STS), aluminum (Al), titanium (Ti), or the like.

The side case 210 of the present invention includes a metal material, and the side case 210 can be used as an antenna radiator. Since a conductive material having a length suitable for the frequency characteristics of the signals to be transmitted and received must be used, a plurality of conductive members are formed by dividing the slits in the middle of the side case 210 made of metal, and filling the slits with a non-metallic material to fill the conductive members. Can be used as an antenna emitter.

Unlike the above example in which a plurality of cases provide an internal space in which a plurality of cases accommodate various electronic components, the mobile terminal 100 may be configured such that one case provides the interior space. In this case, the mobile terminal 100 of the uni-body in which the synthetic resin or metal extends from the side to the rear can be implemented.

On the other hand, the mobile terminal 100 may be provided with a waterproof portion (not shown) to prevent water from entering the terminal body. For example, the waterproof portion is provided between the window 151a and the front case 101, between the front case 101 and the rear case 102, or between the rear case 102 and the rear cover 103, the combination of these It may include a waterproof member for sealing the interior space of the city.

The mobile terminal 100 includes a display unit 151, first and second sound output units 152a and 152b, a proximity sensor 141, an illuminance sensor 142, a light output unit 154, the first and second units Cameras 121a and 121b, first and second manipulation units 123a and 123b, a microphone 122, and an interface unit 160 may be provided.

Hereinafter, as shown in FIGS. 1B and 1C, a display unit 151, a first sound output unit 152a, a proximity sensor 141, an illuminance sensor 142, and an optical output unit on the front surface of the terminal body ( 154), the first camera (121a) and the first operation unit (123a) is disposed, the second operation unit (123b), the microphone 122 and the interface unit 160 are disposed on the side of the terminal body, the terminal body The mobile terminal 100 in which the second sound output unit 152b and the second camera 121b are disposed on the rear surface of the vehicle will be described as an example.

However, these configurations are not limited to this arrangement. These configurations may be excluded or replaced as necessary, or may be disposed on other sides. For example, the first operation unit 123a may not be provided on the front surface of the terminal body, and the second sound output unit 152b may be provided on the side surface of the terminal body rather than the rear surface of the terminal body.

The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, the display unit 151 may display execution screen information of an application program driven by the mobile terminal 100, or UI (User Interface) or GUI (Graphic User Interface) information according to the execution screen information. .

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). display), a three-dimensional display (3D display), an electronic ink display (e-ink display).

In addition, two or more display units 151 may be present depending on the implementation form of the mobile terminal 100. In this case, in the mobile terminal 100, a plurality of display units may be spaced apart or integrally disposed on one surface, or may be disposed on different surfaces.

The display unit 151 may include a touch sensor that senses a touch on the display unit 151 so as to receive a control command by a touch method. Using this, when a touch is made to the display unit 151, the touch sensor detects the touch, and the controller 180 can be configured to generate a control command corresponding to the touch based on the touch. The content input by the touch method may be a letter or a number, an instruction in various modes, or a menu item that can be designated.

On the other hand, the touch sensor is composed of a film having a touch pattern, is disposed between the display (not shown) on the back surface of the window 151a and the window 151a, or a metal wire that is directly patterned on the back surface of the window 151a. It may be. Alternatively, the touch sensor may be integrally formed with the display. For example, the touch sensor may be disposed on the substrate of the display, or may be provided inside the display.

As such, the display unit 151 may form a touch screen together with a touch sensor, and in this case, the touch screen may function as a user input unit 123 (see FIG. 1A ). In some cases, the touch screen may replace at least some functions of the first operation unit 123a.

The first sound output unit 152a may be implemented as a receiver that delivers a call sound to the user's ear, and the second sound output unit 152b is a loud speaker that outputs various alarm sounds or multimedia playback sounds. ).

An acoustic hole for emitting sound generated from the first sound output unit 152a may be formed in the window 151a of the display unit 151. However, the present invention is not limited thereto, and the sound may be configured to be emitted along an assembly gap between structures (for example, a gap between the window 151a and the front case 101). In this case, the appearance of the mobile terminal 100 may be simpler because the holes formed independently for the sound output are not visible or hidden.

The light output unit 154 is configured to output light to notify when an event occurs. Examples of the event include message reception, call signal reception, missed calls, alarms, schedule notifications, email reception, information reception through applications, and the like. The control unit 180 may control the light output unit 154 so that the output of light is terminated when the user's event is detected.

The first camera 121a processes an image frame of a still image or moving picture obtained by an image sensor in a shooting mode or a video call mode. The processed image frame may be displayed on the display unit 151 and may be stored in the memory 170.

The first and second operation units 123a and 123b are examples of the user input unit 123 operated to receive a command for controlling the operation of the mobile terminal 100, and may also be collectively referred to as a manipulating portion. have. The first and second manipulation units 123a and 123b may be adopted in any manner as long as the user operates the device while receiving a tactile feeling, such as touch, push, and scroll. In addition, the first and second operation units 123a and 123b may be employed in a manner that the user operates without a tactile feeling through a proximity touch, a hovering touch, or the like.

In this figure, the first operation unit 123a is illustrated as a touch key, but the present invention is not limited thereto. For example, the first operation unit 123a may be a mechanical key or a combination of a touch key and a push key.

Contents input by the first and second operation units 123a and 123b may be variously set. For example, the first operation unit 123a receives commands such as a menu, home key, cancel, search, etc., and the second operation unit 123b is output from the first or second sound output units 152a, 152b. Commands such as adjusting the volume of the sound and switching to the touch recognition mode of the display unit 151 may be received.

Meanwhile, as another example of the user input unit 123 on the rear surface of the terminal body, a rear input unit 123c may be provided. The rear input unit 123c is operated to receive a command for controlling the operation of the mobile terminal 100, and the input content may be variously set. For example, commands such as power on/off, start, end, scroll, and the like, and control the volume of sound output from the first and second sound output units 152a and 152b, and the touch recognition mode of the display unit 151. You can receive commands such as conversion of. The rear input unit 123c may be implemented in a form capable of input by a touch input, a push input, or a combination thereof.

The rear input unit 123c may be disposed to overlap the front display unit 151 in the thickness direction of the terminal body. For example, when the user holds the terminal body with one hand, the rear input unit 123c may be disposed at the upper rear portion of the terminal body so as to be easily operated using the index finger. However, the present invention is not necessarily limited to this, and the position of the rear input unit may be changed.

When the rear input unit 123c is provided on the rear of the terminal body, a new type of user interface using the rear input unit 123c may be implemented. In addition, when the touch screen or the rear input unit described above replaces at least some functions of the first operation unit 123a provided on the front surface of the terminal body, when the first operation unit 123a is not disposed on the front surface of the terminal body, The display unit 151 may be configured as a larger screen.

Meanwhile, the mobile terminal 100 may be provided with a fingerprint recognition sensor for recognizing a user's fingerprint, and the controller 180 may use fingerprint information detected through the fingerprint recognition sensor as an authentication means. The fingerprint recognition sensor may be embedded in the display unit 151 or the user input unit 123.

The microphone 122 is configured to receive a user's voice, other sounds, and the like. The microphone 122 may be provided at a plurality of locations and configured to receive stereo sound.

The interface unit 160 is a passage through which the mobile terminal 100 can be connected to an external device. For example, the interface unit 160 is a connection terminal for connection with other devices (eg, earphones, external speakers), a port for short-range communication (for example, an infrared port (IrDA Port), a Bluetooth port (Bluetooth) Port, Wireless LAN Port, etc.], or at least one of a power supply terminal for supplying power to the mobile terminal 100. The interface unit 160 may be implemented in the form of a socket that accommodates an external card such as a subscriber identification module (SIM) or a user identity module (UIM) or a memory card for storing information.

A second camera 121b may be disposed on the rear side of the terminal body. In this case, the second camera 121b has a shooting direction substantially opposite to the first camera 121a.

The second camera 121b may include a plurality of lenses arranged along at least one line. The plurality of lenses may be arranged in a matrix format. Such a camera may be referred to as an'array camera'. When the second camera 121b is configured as an array camera, images may be captured in a variety of ways using a plurality of lenses, and better quality images may be obtained.

The flash 124 may be disposed adjacent to the second camera 121b. When the flash 124 photographs the subject with the second camera 121b, light is directed toward the subject.

A second sound output unit 152b may be additionally disposed on the terminal body. The second sound output unit 152b may implement a stereo function together with the first sound output unit 152a, or may be used to implement a speakerphone mode during a call.

The terminal body may be provided with at least one antenna for wireless communication. The antenna may be built in the terminal body or may be formed in the case. For example, the antenna forming part of the broadcast receiving module 111 (see FIG. 1A) may be configured to be pulled out from the terminal body. Alternatively, the antenna may be formed of a film type and attached to an inner surface of the rear cover 103, or a case including a conductive material may be configured to function as an antenna.

The terminal body is provided with a power supply unit 190 (see FIG. 1A) for supplying power to the mobile terminal 100. The power supply unit 190 may include a battery 191 built in the terminal body or configured to be detachable from the outside of the terminal body.

The battery 191 may be configured to receive power through a power cable connected to the interface unit 160. Also, the battery 191 may be configured to be wirelessly charged through a wireless charger. The wireless charging may be implemented by a magnetic induction method or a resonance method (magnetic resonance method).

Meanwhile, in this drawing, the rear cover 103 is coupled to the rear case 102 so as to cover the battery 191 to limit the detachment of the battery 191, and is configured to protect the battery 191 from external shock and foreign matter. For example. When the battery 191 is configured to be detachably attached to the terminal body, the rear cover 103 may be detachably coupled to the rear case 102.

To the mobile terminal 100, an accessory that protects the appearance or assists or expands the function of the mobile terminal 100 may be added. An example of such an accessory is a cover or pouch that covers or accommodates at least one surface of the mobile terminal 100. The cover or pouch may be configured to expand the function of the mobile terminal 100 in conjunction with the display unit 151. Another example of an accessory is a touch pen for assisting or expanding a touch input to a touch screen.

Hereinafter, exemplary embodiments related to a control method that can be implemented in the mobile terminal configured as described above will be described with reference to the accompanying drawings. It will be apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit and essential features of the present invention.

As the multimedia function becomes important, the wireless communication technology performed by the mobile terminal 100 is performed in various forms such as short-range, long-distance or between devices, and since different frequency bands (resonant frequencies) are used, different antennas must be used. do.

LTE (4th generation mobile communication), which is a 4th generation mobile communication technology, has appeared to support the transmission and reception of large amounts of data, but considering the trend of wireless network users consuming data and the popularization of the Internet of Things, it is possible to transmit large amounts of data faster than LTE. There is a need for an ultra-wideband mobile communication technology capable of transmitting and receiving. 5th generation mobile communication technology is being developed. Radio technology for 5G mobile communication is called New Radio (NR) in 3rd Generation Partnership Project (3GPP), and International Telecommunications Union (ITU) is called International Mobile Telecommunication (IMT)-2020, which is different from existing LTE. It is a communication method implemented in a manner.

In addition to fast and large-capacity data transmission through 5G mobile communication, reliability of data transmission may be improved, and a function of supporting IoT communication may be added according to the spread of the Internet of Things (IOT).

5G is a mobile communication technology with a maximum download speed of 20 Gbps and a minimum download speed of 100 Mbps. In addition, it can provide Internet of Things (IoT) service to 1 million devices within a radius of 1 km, and free communication is possible even on a 500 km/h high-speed train. The download speed is 280 times faster than normal LTE. It is a wireless communication technology that can download one movie in 1 second in 10 seconds.

The response speed of 5G mobile communication has improved noticeably as well as the transmission speed. If the data transfer rate is an indicator of how much data can be passed at a time, the response rate is based on the time it takes for small data to travel.

In 4G, the response speed has been increased to 10-50ms (millisecond, one thousandth of a second). In 5G, this response is about 10 times faster. Thanks to this, 5G is expected to be actively introduced in the field of autonomous vehicles and the Internet of Things (IoT), where large amounts of data must be exchanged continuously with the central server.

Frequency bands of centimeter waves (3 GHz to 30 GHz) and millimeter waves (30 GHz to 300 GHz) can be used, and among them, a communication method using signals in a frequency band of 6 GHz or less is called Sub-6.

Sub-6 includes N41 using a signal band of 2.5 GHz to 2.7 GHz and N78 using a signal band of 3.3 GHz to 3.8 GHz, and the frequency bands used may differ from country to country. An antenna that ensures performance in both frequency bands is required for products with specifications that can be used worldwide.

The structure of the antenna has become complicated as the existing LTE antenna has been improved several times. For broadband LTE, an antenna structure capable of extending the bandwidth at the resonant frequency is required, and signals of different frequency bands may be received for LTE-Advenced (LTE-A) using signals of multiple frequency bands rather than one frequency band. Multiple antennas or multi-resonant antennas are required.

A plurality of antennas are used to cover all signals, such as a frequency band below 1 GHz (low band) and a frequency band before and after 2 GHz (mid band) and a frequency band above 2.2 GHz (high band). Need to be equipped.

In addition, a plurality of antennas are required to apply a multiple input multiple output (MIMO) technology. The multiple input/output method has two or more antennas in the base station and the mobile terminal to transmit data through multiple paths and detects it at the receiving end to reduce interference and lower each transmission rate. Can transmit. Four antennas are required when using the 4x4 MIMO method for LTE mobile communication, so that the antenna can be implemented using the side case 210 including a metal material. Since a plurality of antennas are required to use the MIMO method, a slit that divides a metal portion of the side case 210 can be formed, divided into a plurality of conductors, and each conductor can be used as an antenna.

However, it is not desirable to increase the number of slits formed in the side case 210 exposed to the outside in terms of design, and there is a limitation in changing the size or length of the divided conductors, and an opening or button located on the side There is a problem in that frequency and tuning of a signal to be transmitted/received under the influence of the back are not easy. Particularly, the portion located on the left and right sides of the side case 210 may degrade the performance of the antenna when the user grips the mobile terminal 100. It will be placed on the lower side. In addition, since it is limited to increase the number of slits in terms of design, there is a limit to implementing an antenna by using a side case in addition to the existing LTE antenna.

Accordingly, the present invention can utilize an insufficient space by forming an antenna in the display unit 151 and the rear case 102. In particular, the conventional LTE antenna has a long wavelength, and when mounted on the front and rear surfaces, there was interference with a metal material mounted therein, for example, a middle frame or an electrode of the display unit, but the antenna of the present invention has a shorter wavelength than the existing LTE antenna. Since it is an antenna for 5G wireless communication, it can be formed on the display part or the rear case due to less influence of surrounding metal materials.

Conventionally, the antenna was attached to the upper portion of the rear case 102, but a metal side case 210 surrounding the side surface of the mobile terminal 100 appeared and mounted on the upper or lower portion of the rear case. There is a problem in that the performance of the antenna is deteriorated, and thus, the LTE antenna attached to the upper portion of the rear case is disappearing in the recently released mobile terminal.

2 is a view showing a first antenna 310a mounted on the display unit 151 of the present invention. The display unit 151 is formed by stacking a plurality of layers, and the touch sensor 144 is positioned on the display panel 1511 outputting an image. In order to protect the outside of the display unit 151, it includes a window (151a) located at the outermost. A transparent adhesive (OCA) may be interposed to stack each layer, and the first antenna 310a of the present invention may be located in front of the touch sensor 144.

The first antenna 310a needs a substrate 311 to form the radiation patch 312. The first antenna 310a may interpose the first antenna 310a having the radiation patch 312 on a separate film 311 between the touch sensor 144 and the window 151a, and use an independent film. Instead, when the electrode 1442 of the touch panel 144 is formed, the radiation patch 312 may be formed on the touch substrate 1441 to implement the first antenna 310a. When the radiation patch 312 is directly formed on the touch substrate 1441, there is an advantage of reducing the thickness, and the portion where the radiation patch 312 of the first antenna 310a is formed is omitted from the touch electrode 1442. Can.

The touch sensor 144 generally implements the touch electrode 1442 using ITO, which is a transparent material, and ITO (Indium tin Oxide) is a highly conductive material made by adding tin oxide to indium oxide having conductivity. A conductive film can be obtained. It is possible to implement a touch electrode by coating ITO on a touch substrate made of polyethylene or the like.

However, ITO is transparent as a conductive material, but has a lower resistance than metal, so it is not easy to obtain a resistance for antenna 310 performance with ITO. In order to secure the performance of the first antenna 310a, the radiation patch 312 may be implemented using a silver nano transparent electrode. Silver nano is a nanometer sized silver coated or mixed product that can be used to form thin and long silver by using the ductility and malleability of silver. Silver nano is highly conductive because it is a metal, but nano-scale silver nano is invisible to humans. As illustrated in FIG. 2, the first antenna 310a may be implemented on the display unit 151 using silver nano.

However, the electrode 319 connected to the power supply unit 315 that supplies power to the first antenna 310a uses an opaque metal material for stable connection between the main substrate and the connection structure. Since the electrode 319 or the power supply unit 315 is opaque, it is difficult to form the first antenna 310a in the active area of the display unit 151, and as shown in FIG. 2, the first edge is formed at the edge of the display unit 151. An electrode 319 may be disposed on the bezel, which is an inactive region positioned around the display unit 151 by forming the antenna 310a.

3 is a view showing a second antenna 310b mounted on the rear case 102 of the present invention. Recently, a mobile terminal has a design mainly composed of a side case 210 made of a metal material and a rear case 102 made of glass. An aesthetic effect can be obtained without exposing the electronic components inside the mobile terminal to the outside by laminating the color film 102a on which the color or pattern is formed inside the rear case 102 made of glass. The color film 102a is formed by laminating a color layer 1023 including color on a PET film, and the color layer 1023 does not transmit light, so that the inside parts are not visible.

When the second antenna 310b is directly formed based on the color layer 1023 as described above, the thickness of the antenna 310 can be reduced, and a separate process such as attachment can be omitted. An insulating layer 318 may be stacked on the inner surface of the rear case 102 to protect the second antenna 310b from damage. The electrode 319 for connecting the second antenna 310b and the main substrate 181 may be exposed by omitting a portion of the insulating layer 318.

As illustrated in FIG. 3, the second antenna 310b and the main substrate 181 may be connected by using a flexible substrate 330b having one end connected to the electrode 319 and the other end connected to the main substrate 181. Since the color film 102a of the rear case 102 is opaque, there is no restriction on the position of the flexible substrate 330b located inside or the position of the electrode 319 of the antenna 310.

4 is a view for explaining a method of connecting the first antenna 310a and the main substrate, the first antenna 310a of the present invention will be located on the side of the display unit 151 as shown in FIG. 2. Can. FIG. 4A is a view showing a bezel portion of a side surface of a conventional display unit 151 in which the antenna 310 is not disposed, and in an inactive region D of the display unit 151, a case and a display unit The size (B) of the bezel is determined in consideration of the separation space (D) between (151) and the space for coupling the case and the window.

When the first antenna 310a of the present invention is formed on the display unit 151, the connection module 230 for connecting the first antenna 310a and the main substrate 181 is made of an opaque material, so the screen is always output. It should be located in the non-active area D. At this time, the flexible substrate connected to the connection module 230 needs a space for bending as shown in FIG. 4(b), so that the space C'between the end of the display unit 151 and the case needs to be increased. Occurs.

The present invention provides a connection structure between the main substrate 181 and the antenna 310 by using the connection module 230 as shown in FIG. 5 to solve the above problem. FIG. 5 is a view showing a connection module 230 connecting the first antenna 310a and the second antenna 310b of the present invention to the main substrate 181. The first antenna 310a and the rear surface are located on the front side. It may be connected to the main substrate 181 by using a connection module 230 that connects the second antenna 310b located in the vertical direction.

In particular, as shown in FIG. 5, when the first antenna 310a and the second antenna 310b are symmetrically arranged on the front and rear surfaces, the main substrate 181 is simultaneously used using one connection module 230. Can connect to In addition, since the connection module 230 has elasticity, the connection state can be maintained even if a tolerance occurs or an impact is applied to the mobile terminal.

The connection module 230 may perform frequency tuning of the antenna 310 by adjusting the length of the connection line connecting the end connected to the antenna 310 and the end connected to the main substrate 181.

The first antenna 310a and the second antenna 310b may use the same type of antenna 310, different types of antenna 310 may be used, and the first antenna 310a and the second antenna 310b may be used. Can be combined to create a synergistic effect. Hereinafter, the shape of the antenna 310 of the present invention corresponding to the first antenna 310a formed on the display unit 151 as well as the second antenna 310b formed on the color film 102a of the rear case 102 Explain.

Hereinafter, the antenna 310 formed on the display unit 151 or the rear case 102 is described based on the antenna 310 for 5G communication, but is not limited thereto, and the antenna for LTE communication or the WIFI antenna 310 It is also applicable to other antennas.

An array antenna 310 composed of a plurality of patches may be used as the antenna 310 for 5G communication. 6 is a diagram illustrating a millimeter wave (mmWave) antenna 310 for 5G communication, and the array antenna 310 is an antenna having directivity in a specific direction by using a plurality of radiation patches 312. In the case of a dipole antenna or a slot antenna, there is a property of radiating in all directions without directionality, but there is a problem in that energy consumption is large in order to transmit and receive a signal in a high frequency band such as 5G. have.

The beam pattern implemented by the array antenna may adjust a direction by placing a phase difference in power applied to each radiation patch 312 or by varying the intensity of the power supply. As shown in (a) of FIG. 6, the antenna 310 in which a plurality of radiation patches 312 are disposed in only one direction (x-axis direction) has a beam pattern only in a direction in which the plurality of radiation patches 312 are arranged. However, if a plurality of radiation patches 312 are disposed in the y-axis direction as in 2x2 or 2x4, the beam pattern can be adjusted in the y-axis direction, thereby improving the performance of the antenna 310.

The size of the radiation patch 312 corresponds to 1/2 of the wavelength length of the signal to be transmitted and received. However, since the wavelength length varies according to the dielectric constant of the substrate on which the actual antenna 310 is mounted, it is 1/2 (a=λ _eff /2) of the effective wavelength length considering the dielectric constant of the substrate. The interval between each radiation patch 312 corresponds to 1/2 wavelength (b=λ/2) of a signal to be transmitted and received, and may be arranged at an interval of about 5 mm when transmitting and receiving a signal in the 28G band.

Each of the radiation patches 312 is supplied with power through a feeding line connected to the feeding unit 315. An impedance matching line 314 may be further included between the power supply line 315 and the radiation patch 312 to match the impedance of the supplied power and the impedance of the radiation patch 312. The impedance matching line 314 may have a length (c=λ _eff /4) corresponding to 1/4 of the effective wavelength corresponding to the length of the radiation patch 312.

7 shows another embodiment of the antenna 310 of the present invention, and includes more radiation patches 312 than the embodiment of FIG. 6. 6(b) is a graph showing the reflection coefficient of the array antenna 310 of FIG. 6(a), and FIG. 7(b) is reflection of the array antenna 310 of FIG. 7(a). It is a graph showing the coefficient. Since the antenna 310 must radiate into the air without reflecting the supplied signal, the smaller the reflection coefficient, the better the performance, and the radiation coefficient is the largest at the resonance frequency of the antenna 310. That is, it is possible to transmit and receive signals of the frequency with the largest reflection coefficient.

The more the number of radiation patches 312 of the array antenna 310 is, the better the performance of the antenna 310 is. Therefore, the reflection coefficient of the graph of FIG. 7(b) is more negative than that of FIG. 6(b). It protrudes bigger.

In order to improve the performance of the antenna 310, it is necessary to widen the resonance frequency band of the antenna 310. If the antenna 310 resonant frequency band is wide, even if different carriers use different frequency bands, it is possible to cover with one antenna 310. If the bandwidth is narrow, performance is deteriorated even if the resonance frequency band is slightly deviated, but the bandwidth is wide. Even if occurs, the performance of the antenna 310 does not decrease. For example, the performance of the antenna 310 may vary according to a user's hand or a surrounding situation, but if the bandwidth is wide, the signal may be included in the changed resonant frequency range and communication performance may not deteriorate.

FIG. 8(a) is a diagram illustrating an embodiment in which the auxiliary radiation patch 312 is additionally provided to widen the bandwidth of the resonant frequency of the antenna 310. The auxiliary radiation patch 312 is connected to the radiation patch 312 and the distance between the auxiliary patch 313 and the radiation patch 312 is 1/2 of the wavelength (d) as the spacing b of the main radiation patch 312 =λ/2). The size (e) of the auxiliary patch 313 may be slightly smaller or larger than the size of the radiation patch 312. When the size difference between the auxiliary patch 313 and the radiation patch 312 is within 10%, the bandwidth is expanded, and the reflection coefficient is largely shown as a negative value in a wide frequency band as shown in FIG.

However, since the antenna 310 having a form as shown in FIGS. 7 and 8 has a larger size of the antenna 310, it is difficult to mount it all on the display unit 151. As described above, a larger number of antennas 310 may be mounted by distributing and mounting the rear case 102. In addition, the array antenna 310 for millimeter wave has directionality, and is advantageous in that its effect is excellent when mounted in front and rear.

When the distance between the first antenna 310a located on the front side and the second antenna 310b located on the rear side is formed to have a half wavelength length, that is, the first distance is equal to the interval of each radiation patch 312. When the distance between the antenna 310a and the second antenna 310b is arranged, the antenna 310 may be formed in two dimensions. When the first antenna 310a is a 1x4 array antenna 310 and the second antenna 310 is a 1x4 array antenna 310, a 2x4 array antenna 310 may be implemented. The antenna 310 of the 2x4 array is difficult to implement on the front display unit 151 due to the connection problem of the power supply unit 315, but can be implemented by combining the second antenna 310b and the first antenna 310a, thereby providing a two-dimensional beam. Operation is possible.

The MIMO antenna 310 may be implemented by changing the signal channels of the first antenna 310a and the second antenna 310b located at the front side. Unlike the above-described embodiment, the MIMO antenna 310 can be arranged in various positions and directions without limitation of the position between the first antenna 310a and the second antenna 310b.

When the first antenna 310a and the second antenna 310b are implemented as antennas 310 operating in the same frequency band, phase inversion is performed by separating signal components determined to be noise power from signals collected from each antenna 310. An out-of-phase signal can be applied to destructive noise components. That is, it is possible to improve the sensitivity of the signal by implementing a signal noise canceling function of the antenna 310 that removes only the noise component of the received signal and amplifies only the effective signal.

9 is a view for explaining the detailed configuration of the radiation patch 312 of the antenna 310 of the present invention. The second antenna 310b positioned in the rear case 102 is not exposed to the outside by being covered by the color film 102a, but the first antenna 310a positioned in the front display unit 151 is located in the display unit 151. It may be formed in an area where a screen is output. In this case, a silver nano electrode may be used so as not to cover the screen. Even if silver nano is used, a small change in refractive index may occur, so that the radiation patch 312 may be implemented in a mesh form as illustrated in FIG. 9B to further increase transparency. The power supply line 315 may be implemented in a solid form to stably apply power, but if necessary to further reduce the size of the bezel, the power supply line 315 and the impedance matching line 314 may also be partially formed of a mesh. .

10 is a view showing the performance of the emitter of FIG. 9 (a-1) and (a-2) is a view showing the reflection coefficient and efficiency of the radiation patch 312 of FIG. 9 (a), ( b-1) and (b-2) are diagrams showing the reflection coefficient and efficiency of the radiation patch 312 of FIG. 9(b).

Looking at the reflection coefficient, if the radiation patch 312 is filled with a conductive material, whether a solid type or a mesh type, it can resonate at the same frequency to transmit and receive signals of the same frequency. In addition, in both cases, the efficiency also exhibits a total efficiency (Tot. Efficiency) almost similar to the radiation efficiency (Rad. Efficiency) at the resonance frequency. Radiation efficiency (Rad. Efficiency) means ideal efficiency and total efficiency (Tot. Efficiency) is the efficiency that reflects errors that appear depending on the type of radiation patch 312 and the dielectric constant of the base substrate.

That is, even if the mesh type radiation patch 312 is used, the performance of the antenna 310 can be almost similarly implemented, so that the transparency of the first antenna 310a located in the display unit 151 is increased to increase the display unit 151. ) Can minimize the decrease in visibility.

11(a) is a diagram of an antenna 320 for a centimeter wave. The centimeter wave is an example of 5G wireless communication, and is referred to as a general sub-6 as described above. Sub-6 includes N41 using a signal band of 2.5 GHz to 2.7 GHz and N78 using a signal band of 3.3 GHz to 3.8 GHz, and the frequency bands used may differ from country to country.

The conductive strip 322 for the millimeter wave forms a beam pattern using a plurality of conductive strips 322, but since the centimeter wave has a longer length than the millimeter wave, the size is too large when implemented in the form of an array antenna. As shown in the strip antenna 320 implemented using a pair of conductive strips having a predetermined length can be used.

The first conductive strip 322a is connected to a power supply unit 315 and the second conductive strip 322b is grounded so that electric charges are collected between the pair of conductive strips 322a and 322b as a capacitor. Since the capacitance of the strip antenna 320 varies depending on the thickness and length of each of the conductive strips 322a and 322b and the distances g1 and g2 of the pair of conductive strips 322a and 322b, impedance matching can be performed by adjusting this. .

In addition, if a plurality of strip antennas 320 is provided, signals of different frequency bands may be transmitted or received, or a 2x2 MIMO antenna may be implemented when the strip antennas 320 of the same size are used. It is also possible to implement a 4x4 MIMO antenna by forming the first antenna on the front side and the second antenna on the back side.

When the plurality of strip antennas 320 are arranged in this way, in order to minimize interference between the strip antennas, the adjacent strip antennas 320 have the first conductive strips 322a and the second conductive strips 322b arranged in reverse. Can be placed.

However, in the case of a centimeter wave rather than a millimeter wave, the length of the wavelength is longer, so it is affected by surrounding metal parts. In particular, in the case of the strip antenna 320 formed on the display unit 151, the middle frame 220 including a metal component supporting the rear surface of the display unit 151 is affected.

11(b) is a graph showing the reflection coefficients of the strip antenna 320 of FIG. 11(a), and the lengths of the two strip antennas 320 are different, but resonance occurs at the same frequency. This is because the signal is influenced by the middle frame 220, and thus the distortion of the resonance frequency appears.

In order to solve the above problem, as shown in FIG. 12(a), the middle frame 220 of the region where the conductive strip 322 is located is removed (221) so that the signal of the conductive strip 322 is the mid frame 220. It can minimize distortion. The graph shown in FIG. 12(b) is a graph showing the performance of the pair of conductive strips 322 shown in FIG. 12(a), the first strip antenna 320a and the second strip antenna 320b It can be seen that the resonance frequency of) is different.

As described above, the mobile terminal according to the present invention can mount the antenna 320 on the display unit 151 and the rear case 102 to expand the number of antennas 320 that can be mounted in a limited space. .

In addition, the structure of connecting the antenna 320 mounted on the display unit 151 and the rear case 102 and the main substrate 181 is simplified to increase the size of the side bezel and increase the antenna 320 on the display unit 151. ) Can be mounted. The above detailed description should not be construed as limiting in all respects, but should be considered illustrative. The scope of the invention should be determined by rational interpretation of the appended claims, and all changes within the equivalent scope of the invention are included in the scope of the invention.

Claims (16)

A side case forming a side appearance; A window forming the front appearance; A rear case forming a rear appearance; Is mounted inside the side case, the window, the rear case, the wireless communication unit, and A main substrate including a control unit; A display unit stacked on the rear surface of the window; A color film laminated on the inner surface of the rear case; A first antenna formed on the display unit and including a first terminal exposed on a rear surface of the display unit; A second antenna formed integrally with the color film and including a second terminal exposed on the front surface of the color film; And And a connection module in contact with the first terminal and the second terminal to electrically connect the first antenna and the second antenna to the main substrate. According to claim 1, The display unit includes an active area in which an image is output and an inactive area positioned around the active area, The first terminal is a mobile terminal, characterized in that located in the inactive area. According to claim 1, The first antenna and the second antenna, An array antenna including a plurality of antenna radiation patches spaced apart in a first direction, The size of the plurality of antenna radiation patch is a mobile terminal, characterized in that corresponding to the length of the effective half of the signal transmitted and received by the wireless communication unit. According to claim 3, The interval between the antenna radiation patches is a mobile terminal, characterized in that corresponding to the half-wavelength length of the signal transmitted and received by the wireless communication unit. According to claim 3, Each antenna radiation patch is a power supply line connected to the first terminal on one side of the second direction perpendicular to the first direction, and And an impedance matching line corresponding to a quarter effective wavelength of a signal transmitted and received by the wireless communication unit located between the feed line and the radiation patch. According to claim 3, The plurality of antenna radiation patch mobile terminal characterized in that it further comprises an auxiliary patch spaced by a half wavelength length of the signal transmitted and received by the wireless communication unit in a second direction perpendicular to the first direction. The method of claim 6, The size of the radiation patch and the auxiliary patch is characterized in that the mobile terminal. According to claim 3, The array antenna comprises 4n antenna radiation patches. According to claim 1, The mobile terminal, characterized in that the distance between the first antenna and the second antenna corresponds to a half-wavelength of a signal transmitted and received by the wireless communication unit. According to claim 1, The first antenna and the second antenna is a mobile terminal, characterized in that the MIMO antenna. According to claim 1, The control unit, A mobile terminal characterized by removing noise by synthesizing a signal received from the first antenna and a signal received from the second antenna. According to claim 1, The antenna radiation patch of the first antenna comprises a grid structure. According to claim 1, The antenna radiation patch of the first antenna comprises a silver nano or ITO mobile terminal. According to claim 1, The main substrate includes a feeding part and a ground part, The first antenna and the second antenna And a strip antenna including a first conductive strip connected to the ground portion and a second conductive strip connected to the feed portion. The mobile terminal characterized in that the first conductive strip and the second conductive strip are spaced apart in a first direction. The method of claim 14, The strip antenna includes a plurality of arranged in parallel in the first direction, The arrangement order of the first conductive strip and the second conductive strip of the neighboring strip antenna is different. According to claim 1, The second antenna, An antenna radiation patch stacked on the front side of the color film; An insulating layer covering the antenna radiation patch; And And a second terminal exposed on one side of the insulating layer and connected to the antenna radiation patch.

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