WO2017131246A1

WO2017131246A1 - Mobile terminal and control method therefor

Info

Publication number: WO2017131246A1
Application number: PCT/KR2016/000821
Authority: WO
Inventors: 김종필; 이진술
Original assignee: 엘지전자 주식회사
Priority date: 2016-01-26
Filing date: 2016-01-26
Publication date: 2017-08-03

Abstract

The present invention provides a mobile terminal comprising: a hologram output unit configured to output a hologram image in a preset space, and comprising a scanning mirror for changing an output location of the hologram image; a camera unit arranged adjacent to the hologram output unit, and formed to sense distance so as to detect an output location of a hologram; and a control unit for controlling the scanning mirror so as to change the output location of the hologram image.

Description

Mobile terminal and control method thereof

The present invention relates to a mobile terminal having a hologram output unit and a control method thereof.

Terminals may be divided into mobile / portable terminals and stationary terminals according to their mobility. The mobile terminal may be further classified into a handheld terminal and a vehicle mounted terminal according to whether a user can directly carry it.

The functions of mobile terminals are diversifying. For example, data and voice communication, taking a picture and video with a camera, recording a voice, playing a music file through a speaker system, and outputting an image or video to a display unit. Some terminals have an electronic game play function or a multimedia player function. In particular, recent mobile terminals may receive multicast signals that provide visual content such as broadcasting, video, and television programs.

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. As one of the structural changes and improvements, the mobile terminal including the hologram output unit and the interaction between the hologram object and the user output through the hologram output unit may be considered.

Accordingly, an aspect of the present invention is to provide a mobile terminal for improving a user interaction function on a hologram object using a camera capable of sensing a distance.

In order to achieve the object of the present invention, the watch-type terminal according to an embodiment is made to output a holographic image in a predetermined space, the holographic output including a scanning mirror for changing the output position of the holographic image And a camera unit disposed adjacent to the hologram output unit and configured to sense a distance to determine an output position of the hologram, and a controller to control the scanning mirror to change the output position of the hologram image.

As an example related to the present invention, the mobile terminal may further include a sensor configured to detect a movement of the mobile terminal, and to change an output angle of the holographic image based on one surface of the main body based on the movement of the mobile terminal. The hologram output can be controlled. Thus, the user can be provided with the hologram output in a more suitable position.

As an example related to the present invention, the controller may change the output position of the holographic image based on a relative position of the specific object sensed by the camera and the holographic image. Therefore, the user may output the hologram image at a desired position by using a finger or the like.

As an example related to the present invention, the hologram image may include information related to a specific function, and the controller may control the function based on the movement of the specific object with respect to the hologram image. Therefore, the user may execute various functions related to the hologram image using the camera unit.

According to the present invention, the hologram output unit includes a scanning mirror and a variable focus lens for adjusting an output position and an output distance, and a camera unit for detecting a distance is disposed at an adjacent position, so that the hologram image can be output to a suitable position. It can be adjusted adjacent to the position of the user's finger or the like.

In addition, since the positional movement of a finger can be detected while the holographic image is output, various functions related to the holographic image can be controlled, and the specific function can be performed while continuously displaying screen information on the display unit.

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

1B and 1C are conceptual views of one example of a mobile terminal, viewed from different directions.

2A and 2B are conceptual views illustrating the implementation of a hologram image through a hologram output unit.

3A and 3B are conceptual diagrams for explaining the principle of the hologram.

4A to 4C are conceptual diagrams for describing the transmissive hologram method.

5A through 5C are conceptual diagrams for describing the reflective hologram method.

6A and 6B are conceptual views illustrating a hologram unit and a camera unit according to an embodiment of the present invention.

FIG. 6C is a flow diagram illustrating an output of a hologram and a control method thereof according to an embodiment.

7A and 7B are conceptual views illustrating the structures of a hologram output unit and a camera according to another embodiment of the present invention.

8A and 8B are conceptual diagrams for describing a configuration of a hologram output unit according to still another embodiment.

9A to 9C are conceptual views illustrating a layout structure of a hologram output unit mounted on a mobile terminal and a method of outputting a hologram image.

10 is a conceptual diagram illustrating a cooling member disposed in a mobile terminal according to one embodiment.

11A and 11B are conceptual diagrams for describing a method of controlling output of a holographic image.

12A to 12E are conceptual diagrams for describing a method of controlling a mobile terminal based on a control command applied to a hologram image.

13A and 13B are conceptual views illustrating a control method of controlling a mobile terminal using a gesture signal detected in an area adjacent to a hologram image.

Hereinafter, exemplary embodiments disclosed herein will be described in detail with reference to the accompanying drawings, and the same or similar components will be given the same reference numerals regardless of the reference numerals, and redundant description thereof will be omitted. 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. In addition, in describing the embodiments disclosed herein, when it is determined that the detailed description of the related known technology may obscure the gist of the embodiments disclosed herein, the detailed description thereof will be omitted. In addition, the accompanying drawings are intended to facilitate understanding of the embodiments disclosed herein, but are not limited to the technical spirit disclosed herein by the accompanying drawings, all changes included in the spirit and scope of the present invention. It should be understood to include equivalents and 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 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.

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 mobile terminal described herein includes a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistant, a portable multimedia player, a navigation, a slate PC , Tablet PCs, ultrabooks, wearable devices, such as smartwatches, glass glasses, head mounted displays, and the like. have.

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, digital signages, etc., except when applicable only to mobile terminals. will be.

1A to 1C, FIG. 1A is a block diagram illustrating a mobile terminal according to the present invention, and FIGS. 1B and 1C are conceptual views of one example of the mobile terminal, 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 controller 180, and a power supply unit 190. ) May be included. The components shown in FIG. 1A are not essential to implementing a mobile terminal, so that the mobile terminal described herein may have more or fewer components than those listed above.

More specifically, the wireless communication unit 110 of 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 the external server It may include one or more modules that enable wireless communication therebetween. In addition, the wireless communication unit 110 may include one or more modules for connecting the mobile terminal 100 to one or more networks.

The wireless communication unit 110 may include at least one of the broadcast receiving module 111, the mobile communication module 112, the wireless internet module 113, the short range communication module 114, and the location information module 115. .

The input unit 120 may include a camera 121 or an image input unit for inputting an image signal, a microphone 122 for inputting an audio signal, an audio input unit, or a user input unit 123 for receiving information from a user. , Touch keys, mechanical keys, and the like. The voice data or the image data collected by the input unit 120 may be analyzed and processed as a control command of the user.

In the mobile terminal according to the present invention, the camera 121 may include a 3D camera or a depth camera. According to the present invention, a user's body located in an arbitrary space (or a predetermined space) in which a hologram image (or a hologram object) is output may be sensed through an image sensor provided in a 3D camera. have. The image sensor may be configured to sense a user's body while sensing a user's body on the arbitrary space. In the mobile terminal according to the present invention, an image (or a three-dimensional (3D) image) having a stereoscopic effect corresponding to an object (or a user's human body) approaching a holographic image may be acquired through the 3D camera.

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 may include a proximity sensor 141, an illumination sensor 142, an illumination sensor, a touch sensor, an acceleration sensor, a magnetic sensor, and gravity. G-sensor, Gyroscope Sensor, Motion Sensor, RGB Sensor, Infrared Sensor, Infrared Sensor, Finger Scan Sensor, Ultrasonic Sensor Optical sensors (e.g. cameras 121), microphones (see 122), battery gauges, environmental sensors (e.g. barometers, hygrometers, thermometers, radiation detection sensors, Thermal sensors, gas sensors, etc.), chemical sensors (eg, electronic noses, healthcare sensors, biometric sensors, etc.). Meanwhile, the mobile terminal disclosed herein may use a combination of information sensed by at least two or more of these sensors.

The output unit 150 is used to generate output related to visual, auditory, or tactile senses, and includes a display unit 151, an audio output unit 152, a hap tip module 153, an optical output unit 154, and a hologram output unit ( Or the holography module 300. The display unit 151 forms a layer structure with or is integrally formed with the touch sensor, thereby implementing 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 may also provide an output interface between the mobile terminal 100 and the user.

The interface unit 160 serves as a path to 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 associated with 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 plurality of application programs or applications driven in the mobile terminal 100, data for operating the mobile terminal 100, and instructions. At least some of these applications may be downloaded from an external server 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 basic functions of the mobile terminal 100 (for example, a call forwarding, a calling function, a message receiving, and a calling function). 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 operation related to the application program, the controller 180 typically controls the overall operation of the mobile terminal 100. The controller 180 may provide or process information or a function appropriate to a user by processing signals, data, information, and the like, which are 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 in order 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 drive the application program.

Furthermore, the memory 170 may store information about the hologram interference fringe in order to support holographic image projection of the hologram output unit 300. The controller 180 may output information visually output from the mobile terminal as a hologram image through the hologram output unit 300 using the information stored in the memory 170.

The power supply unit 190 receives power from an external power source and an internal power source under the control of the controller 180 to supply power to each component included in the mobile terminal 100. The power supply unit 190 includes a battery, which 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 the 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, the components listed above will be described in detail with reference to FIG. 1A before looking at various embodiments implemented through the mobile terminal 100 described above.

First, referring to the wireless communication unit 110, the broadcast receiving 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 may include technical standards or communication schemes (eg, Global System for Mobile communication (GSM), Code Division Multi Access (CDMA), Code Division Multi Access 2000 (CDMA2000), and 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) and the like to transmit and receive a radio signal with at least one of a base station, an external terminal, a server on a mobile communication network.

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

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

Examples of wireless Internet technologies include Wireless LAN (WLAN), Wireless-Fidelity (Wi-Fi), Wireless Fidelity (Wi-Fi) Direct, Digital Living Network Alliance (DLNA), Wireless Broadband (WiBro), and 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 like. 113) transmits and receives data according to at least one wireless Internet technology in a range including the Internet technologies not listed above.

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

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

Here, the other mobile terminal 100 is a wearable device capable of exchanging (or interworking) data with the mobile terminal 100 according to the present invention (for example, smartwatch, smart glasses). (smart glass), head mounted display (HMD). The short range communication module 114 may sense (or recognize) a wearable device that can communicate with the mobile terminal 100, around the mobile terminal 100. Further, when the detected wearable device is a device that is 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 in the short range communication module ( The transmission may be transmitted to the wearable device through 114. Therefore, the user of the wearable device may use data processed by the mobile terminal 100 through the wearable device. For example, according to this, when a call is received by the mobile terminal 100, the user performs a phone call through the wearable device or when a message is received by the mobile terminal 100, the 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 representative example thereof is a Global Positioning System (GPS) module or a Wireless Fidelity (WiFi) module. For example, when the mobile terminal utilizes the GPS module, the mobile terminal may acquire the location of the mobile terminal using a signal transmitted from a GPS satellite. As another example, when the mobile terminal utilizes the Wi-Fi module, the mobile terminal may acquire the location of the mobile terminal based on information of the wireless access point (AP) transmitting or receiving the Wi-Fi module and the wireless signal. If necessary, the location information module 115 may perform any function of other modules of the wireless communication unit 110 to substitute or additionally obtain data regarding the location of the mobile terminal. The location information module 115 is a module used to obtain the location (or current location) of the mobile terminal, and is not limited to a module that directly calculates or obtains the location of the mobile terminal.

Next, the input unit 120 is for inputting image information (or signal), audio information (or signal), data, or information input from a user. For input of image information, the mobile terminal 100 is one. Alternatively, the plurality of cameras 121 may be provided. 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 or stored in the memory 170. On the other hand, 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 a matrix structure in this way, the mobile terminal 100 may have various angles or focuses. The plurality of pieces of image information may be input. In addition, the plurality of cameras 121 may be arranged in a stereo structure to acquire a left image and a right image for implementing a stereoscopic image.

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

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 an operation of the mobile terminal 100 to correspond to the input information. . The user input unit 123 may be a mechanical input unit (or a mechanical key, for example, a button, a dome switch, a jog wheel, or the like located on the front, rear, or side surfaces of the mobile terminal 100). Jog switch, etc.) and touch input means. As an example, the touch input means may include a virtual key, a soft key, or a visual key displayed on the touch screen through a software process, or a portion other than the touch screen. It may be made of a touch key disposed in the. The virtual key or the visual key may be displayed on the touch screen while having various forms, for example, 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 or perform data processing, function or operation related to an application program installed in the mobile terminal 100 based on the sensing signal. 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 present in the vicinity without using a mechanical contact by using an electromagnetic force or infrared rays. The proximity sensor 141 may be disposed in an inner region of the mobile terminal covered by the touch screen described above or near the touch screen.

Examples of the proximity sensor 141 include a transmission photoelectric sensor, a direct reflection photoelectric sensor, a mirror reflection photoelectric sensor, a high frequency oscillation proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor. In the case where the touch screen is capacitive, the proximity sensor 141 may be configured to detect the proximity of the object by the change of the 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 explanation, an action of allowing the object to be recognized without being in contact with the touch screen so that the object is located on the touch screen is referred to as a "proximity touch", and the touch The act of actually touching an object on a screen is called a "contact touch." The position at which the object is in close proximity touch on the touch screen means a position where the object is perpendicular to the touch screen when the object is in close proximity touch. The proximity sensor 141 may detect a proximity touch and a proximity touch pattern (for example, a proximity touch distance, a proximity touch direction, a proximity touch speed, a proximity touch time, a proximity touch position, and a proximity touch movement state). have. Meanwhile, the controller 180 processes data (or information) corresponding to the proximity touch operation and the proximity touch pattern detected through the proximity sensor 141 as described above, and further, provides visual information corresponding to the processed data. It can be output on the touch screen. Further, the controller 180 may control the mobile terminal 100 to process different operations or data (or information) according to whether the touch on the same point on the touch screen is a proximity touch or a touch touch. .

The touch sensor senses 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. do.

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

As such, when there is a touch input to the touch sensor, the corresponding signal (s) is sent to the touch controller. The touch controller processes the signal (s) and 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. 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 control or perform the same control according to the type of 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 touch object may be determined according to the operation state of the mobile terminal 100 or an application program being executed.

Meanwhile, the touch sensor and the proximity sensor described above may be independently or combined, and may be a short (or tap) touch, a long touch, a multi touch, a drag touch on a touch screen. ), Flick touch, pinch-in touch, pinch-out touch, swipe touch, hovering touch, etc. A touch can be sensed.

The ultrasonic sensor may recognize location information of a sensing object using ultrasonic waves. On the other hand, the controller 180 can calculate the position of the wave generation source through the information detected from the optical sensor and the plurality of ultrasonic sensors. The position of the wave source can be calculated using the property that the light is much faster than the ultrasonic wave, that is, the time that the light reaches the optical sensor is much faster than the time when the ultrasonic wave reaches the ultrasonic sensor. More specifically, the position of the wave generation source may be calculated using a time difference from the time when the ultrasonic wave reaches the light as the reference signal.

On the other hand, 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 object with respect to a 3D stereoscopic image. The photo sensor may be stacked on the display element, which is configured to scan the movement of the sensing object in proximity to the touch screen. More specifically, the photo sensor mounts a photo diode and a transistor (TR) in a row / column and scans contents mounted on the photo sensor by using an electrical signal that varies according to the amount of light applied to the photo diode. That is, the photo sensor calculates coordinates of the sensing object according to the amount of light change, and thus, the position information of the sensing object can 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 in the mobile terminal 100 or user interface (UI) and graphical user interface (GUI) 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.

The stereoscopic display unit may be a three-dimensional display method such as a stereoscopic method (glasses method), an auto stereoscopic method (glasses-free method), a projection method (holographic method).

The sound 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, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, and the like. The sound output unit 152 may also output a sound signal related to a function (for example, a call signal reception sound or a message reception sound) performed in 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 haptic effects that a user can feel. A representative example of the tactile effect generated by the haptic module 153 may be vibration. The intensity and pattern of vibration generated by the haptic module 153 may be controlled by the user's selection or the setting of the controller. For example, the haptic module 153 may synthesize different vibrations and output or sequentially output them.

In addition to vibration, the haptic module 153 may be used to stimulate pins that vertically move with respect to the contact skin surface, jetting force or suction force of air through the jetting or suction port, grazing to the skin surface, contact of electrodes, and electrostatic force Various tactile effects can be generated, such as effects by the endothermic and the reproduction of a sense of cold using the elements capable of endothermic heat generation.

The haptic module 153 may not only deliver a tactile effect through direct contact, but also may allow a user to feel the tactile effect through a muscle sense such as a finger or an arm. 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 occurrence of an event by using light of a light source of the mobile terminal 100. Examples of events occurring in the mobile terminal 100 may be message reception, call signal reception, missed call, alarm, schedule notification, email reception, information reception through an application, and the like.

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

Next, the hologram output unit (or the holography module 300) is configured to output a hologram image in a predetermined space. The structure of the holography module 300 and the projection method of the hologram image using the same will be described in detail with reference to FIGS. 2A to 5B.

The interface unit 160 serves as a path to all external devices connected to the mobile terminal 100. The interface unit 160 receives data from an external device, receives power, transfers the power to each component inside the mobile terminal 100, or transmits data inside the mobile terminal 100 to an external device. For example, a port connecting 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. The port, audio input / output (I / O) port, video input / output (I / O) port, earphone port, etc. may be included in the interface unit 160.

On the other hand, the identification module is a chip that stores a variety of information for authenticating the usage rights of the mobile terminal 100, a user identification module (UIM), subscriber identity module (SIM), universal user authentication And a universal subscriber identity module (USIM). 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 the interface unit 160.

In addition, when the mobile terminal 100 is connected to an external cradle, the interface unit 160 may be a passage for supplying power from the cradle to the mobile terminal 100 or may be input from the cradle by a user. Various command signals may be a passage through which the mobile terminal 100 is transmitted. Various command signals or power input from the cradle may operate 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 may temporarily store input / output data (for example, a phone book, a message, a still image, a video, etc.). The memory 170 may store data regarding vibration and sound of various patterns output when a touch input on the touch screen is performed.

The memory 170 may include a flash memory type, a hard disk type, a solid state disk type, an SSD type, a silicon disk drive type, and a multimedia card micro type. ), Card-type memory (e.g., SD or XD memory), random access memory (RAM), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read It may include at least one type of storage medium 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 that performs a storage function of the memory 170 on the Internet.

On the other hand, as described above, the controller 180 controls the operation related to the application program, and generally the overall operation of the mobile terminal 100. For example, if the state of the mobile terminal satisfies a set condition, the controller 180 may execute or release a lock state that restricts input of a user's control command to applications.

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

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 includes a battery, and the battery may be a built-in battery configured to be rechargeable, and may be detachably coupled to the terminal body for charging.

In addition, the power supply unit 190 may be provided with a connection port, the connection port may be configured as an example of the interface 160 is electrically connected to the external charger for supplying power for charging the battery.

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

Meanwhile, various embodiments of the present disclosure 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 includes a terminal body in the form of a bar. However, the present invention is not limited thereto, and the present invention can 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, and two or more bodies which are coupled to be movable relative. . Although related to a particular type of mobile terminal, a description of a particular type of mobile terminal may generally apply to other types of mobile terminals.

Herein, the terminal body may be understood as a concept that refers to the mobile terminal 100 as at least one aggregate.

The mobile terminal 100 includes a case (eg, a frame, a housing, a cover, etc.) forming an external appearance. As shown, the mobile terminal 100 may include a front case 101 and a rear case 102. Various electronic components are disposed in the internal 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.

The display unit 151 may be disposed in front of the terminal body to output information. As shown, the window 151a of the display unit 151 may be mounted to the front case 101 to form a front surface of the terminal body together with the front case 101.

In some cases, an electronic component may be mounted on the rear case 102. Electronic components attachable to the rear case 102 include a removable battery, an identification module, a memory card, and the like. In this case, the rear cover 102 may be detachably coupled to the rear case 102 to cover the mounted electronic component. Therefore, when the rear cover 103 is separated from the rear case 102, the electronic components mounted on the rear case 102 are exposed to the outside.

As shown, when the rear cover 103 is coupled to the rear case 102, a portion of the side surface of the rear case 102 may be exposed. In some cases, the rear case 102 may be completely covered by the rear cover 103 during the coupling. On the other hand, the rear cover 103 may be provided with an opening for exposing the camera 121b or the sound output unit 152b to the outside.

The

cases

101, 102, and 103 may be formed by injecting a synthetic resin, or may be formed of a metal, for example, stainless steel (STS), aluminum (Al), titanium (Ti), or the like.

The mobile terminal 100 may be configured such that one case may provide the internal space, unlike the above example in which a plurality of cases provide an internal space for accommodating various electronic components. In this case, the mobile terminal 100 of the unibody that the synthetic resin or metal from the side to the rear may be implemented.

On the other hand, the mobile terminal 100 may be provided with a waterproof portion (not shown) to prevent water from seeping into 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, and a combination thereof. It may include a waterproof member for sealing the inner space.

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, an optical output unit 154, and first and second units. The

cameras

121a and 121b, the first and

second manipulation units

123a and 123b, the microphone 122, the interface unit 160, and the like may be provided.

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

However, these configurations are not limited to this arrangement. These configurations may be excluded or replaced as needed or disposed on other sides. For example, the first manipulation 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 of the terminal body instead of the rear surface of the terminal body.

The display unit 151 may include 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). display, a 3D display, or an e-ink display.

In addition, two or more display units 151 may exist according to an implementation form of the mobile terminal 100. In this case, the 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.

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. By using this, when a touch is made to the display unit 151, the touch sensor may sense the touch, and the controller 180 may generate a control command corresponding to the touch based on the touch sensor. The content input by the touch method may be letters or numbers or menu items that can be indicated or designated in various modes.

Meanwhile, the touch sensor is formed of a film having a touch pattern and disposed between the window 151a and the display (not shown) on the rear surface of the window 151a or directly patterned on the rear surface of the window 151a. May be Alternatively, the touch sensor may be integrally formed with the display. For example, the touch sensor may be disposed on a substrate of the display or provided in the display.

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

The first sound output unit 152a may be implemented as a receiver for transmitting a call sound to the user's ear, and the second sound output unit 152b may be a loud speaker for outputting various alarm sounds or multimedia reproduction sounds. It can be implemented in the form of).

A sound 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 the structures (for example, a gap between the window 151a and the front case 101). In this case, an externally formed hole may be invisible or hidden for sound output, thereby simplifying the appearance of the mobile terminal 100.

The light output unit 154 is configured to output light for notifying when an event occurs. Examples of the event may include message reception, call signal reception, missed call, alarm, schedule notification, email reception, information reception through an application, and the like. When the user's event confirmation is detected, the controller 180 may control the light output unit 154 to end the light output.

Furthermore, the hologram output unit 300 may be provided in the terminal body. The hologram output unit 300 may be configured to output a hologram image 300 ′ (see FIG. 2A) to a front surface of the terminal body, for example, a space on the display unit 151. In this drawing, the hologram output unit 300 is provided in one region of the display unit 151. On the other hand, in the mobile terminal according to the present invention, as shown in the figure, the hologram output unit 300 is not only provided in one region of the display unit 151, but also disposed in any region of the main body of the terminal, The location may vary depending on the design.

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

The first and

second manipulation units

123a and 123b may be collectively referred to as a manipulating portion as an example of the user input unit 123 operated to receive a command for controlling the operation of the mobile terminal 100. have. The first and

second manipulation units

123a and 123b may be adopted in any manner as long as the user is tactile manner such as touch, push, scroll, and the like while the user is tactile. In addition, the first and

second manipulation units

123a and 123b may be employed in such a manner that the first and

second manipulation units

123a and 123b are operated without a tactile feeling by the user through proximity touch, hovering touch, or the like.

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

The contents input by the first and

second manipulation units

123a and 123b may be variously set. For example, the first operation unit 123a receives a command such as a menu, a home key, a cancellation, a search, etc., and the second operation unit 123b is output from the first or second

sound output units

152a and 152b. The user may receive a command such as adjusting the volume of the sound and switching to the touch recognition mode of the display unit 151.

Meanwhile, as another example of the user input unit 123, a rear input unit (not shown) may be provided on the rear surface of the terminal body. The rear input unit is manipulated to receive a command for controlling the operation of the mobile terminal 100, and the input contents may be variously set. For example, commands such as power on / off, start, end, scroll, etc., control of 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. Commands such as switching can be received. The rear input unit may be implemented in a form capable of input by touch input, push input, or a combination thereof.

The rear input unit may be disposed to overlap the front display unit 151 in the thickness direction of the terminal body. For example, the rear input unit may be disposed at the rear upper end of the terminal body so that the user can easily manipulate the index body when the user grips the terminal body with one hand. However, the present invention is not necessarily limited thereto, and the position of the rear input unit may be changed.

As such, when the rear input unit is provided at the rear of the terminal body, a new type user interface using the same 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 in the front of the terminal body, the first operation unit 123a is not disposed on the front of the terminal body. The display unit 151 may be configured with 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.

Meanwhile, as shown in the figure, the hologram output unit 300 may be provided at the rear of the terminal body to output the hologram image 300 '(see FIG. 2B) in the space on the rear surface. In the mobile terminal according to the present invention, the hologram output unit 300 may be provided on at least one of a front surface, a side surface, and a rear surface of the main body.

The interface unit 160 serves as a path for connecting the mobile terminal 100 to an external device. For example, the interface unit 160 may be connected to another device (eg, an earphone or an external speaker), a port for short-range communication (for example, an infrared port (IrDA Port), or a Bluetooth port (Bluetooth). Port), a wireless LAN port, or the like, or 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 for receiving an external card such as a subscriber identification module (SIM) or a user identity module (UIM), a memory card for storing information.

The second camera 121b may be disposed on the rear surface of the terminal body. In this case, the second camera 121b has a photographing direction substantially opposite to that of 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 photographed in various ways using a plurality of lenses, and images of better quality may be obtained.

The flash 124 may be disposed adjacent to the second camera 121b. The flash 124 shines light toward the subject when the subject is photographed by the second camera 121b.

The 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 and 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 formed in the case. For example, an antenna that forms part of the broadcast receiving module 111 (refer to FIG. 1A) may be configured to be pulled out from the terminal body. Alternatively, the antenna may be formed in a film type and attached to the inner side of the rear cover 103, or may be configured such that a case including a conductive material functions 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 embedded in the terminal body or detachably configured 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. In addition, the battery 191 may be configured to enable wireless charging through a wireless charger. The wireless charging may be implemented by a magnetic induction method or a resonance method (magnetic resonance method).

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

An accessory may be added to the mobile terminal 100 to protect the appearance or to assist or expand the function of the mobile terminal 100. An example of such an accessory may be 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 be linked with the display unit 151 to expand the function of the mobile terminal 100. Another example of the accessory may be a touch pen for assisting or extending a touch input to a touch screen.

Hereinafter, the hologram output unit 300 will be described in more detail with reference to the accompanying drawings for the principle and method of outputting a holographic image.

2A and 2B are conceptual views illustrating the implementation of a holographic image through the hologram output unit, and FIGS. 3A and 3B are conceptual views illustrating the principle of hologram.

4A to 4C are conceptual diagrams for describing the transmissive hologram method, and FIGS. 5A to 5C are conceptual diagrams for explaining the reflective hologram method.

As described above, the mobile terminal according to the present invention includes a hologram output unit 300, and through the hologram output unit 300, a hologram image is output. In order to support holographic image projection of the hologram output unit 300, the memory 170 may store information about the hologram interference fringe. The controller 180 may output information visually output from the mobile terminal as a hologram image through the hologram output unit 300 using the information stored in the memory 170.

The hologram output unit 300 may be provided on at least one of the front, rear, and side surfaces of the terminal body to output the hologram image 300 'to a space on the rear surface.

2A and 2B are conceptual views illustrating a hologram image 300 ′ implemented through the hologram output unit 300 illustrated in FIGS. 1B and 1C.

Referring to FIG. 2A, as an example, the hologram output unit 300 may be disposed in front of the mobile terminal 100. The hologram output unit 300 may be driven independently of the display unit 151. As illustrated, the hologram output unit 300 may also display a hologram image even when visual information is not displayed on the display unit 151. And may be configured to output 300 '. The hologram output unit 300 may be mounted on a bezel portion formed to surround the display unit 151.

Furthermore, as shown in the drawing, the output unit (or haptic module 153) for transmitting the feedback signal is disposed close to the position where the hologram output unit 300 is disposed, and is output through the hologram output unit 300. In response to the user's gesture with respect to the hologram object, a feedback signal may be transmitted to the user.

Meanwhile, as illustrated, the light source unit for outputting light (or light) for outputting the hologram object and the haptic module 153 for outputting a feedback signal may be disposed independently of each other.

On the other hand, although not shown, the light source for the output of the hologram object and the haptic module for outputting the feedback signal may be made of the same light source, in this case, the controller 180 is provided to the light source for the output of the hologram object By adjusting the intensity of the corresponding laser, the feedback signal can be implemented by the intensity of the laser.

In addition, as illustrated in FIG. 2B, the hologram output unit 300 may be disposed on the rear surface of the mobile terminal 100 to output the hologram image 300 ′ in a predetermined space on the rear surface.

The position where the hologram output unit 300 is mounted and the space where the hologram image 300 ′ is output are not limited to the above examples. The hologram output unit 300 may be configured to be rotatable or pop-up, and may be detachably installed on the terminal body as a separate device. The hologram image 300 ′ may be output in a space irrespective of the installation direction of the hologram output unit 300 through tilting and a separate reflection structure.

The hologram image 300 ′, which may be implemented through the hologram output unit 300, may include both a 2D (2D) planar image and a 3D (3D) stereoscopic image.

The planar imaging method is a monoscopic method of providing the same image in both eyes, and arranges a polyhedron generated by one or more points, lines, planes, or a combination thereof in a virtual three-dimensional space, and views the polyhedron from a specific viewpoint. It is a method to display an image.

Next, the three-dimensional image method is a method of providing different images to both eyes (stereo scopic), a method using the principle that humans feel a three-dimensional feeling when viewing the object with the naked eye. That is, two eyes of a person see different plane images when viewing the same object by the distance between them. These different planar images are delivered to the brain through the retina, and the brain fuses them to feel the depth and reality of the stereoscopic image. Therefore, although there is a slight difference for each person, the binocular disparity due to the distance between the two eyes makes a sense of three-dimensional feeling, and the method of displaying the image using the binocular disparity.

The hologram image 300 ′ generated by the hologram output unit 300 to be described later may include both the planar image and the stereoscopic image. Hereinafter, for the sake of convenience of description, the planar image method may include the case of the stereoscopic image method.

Hereinafter, a method of expressing a hologram image 300 'applicable to embodiments of the present invention and a structure for implementing the same will be described in detail.

The image output through the display unit 151 records only the distribution of the light and dark sides of the object, whereas the hologram image 300 'is an image that simultaneously accumulates and reproduces all information, ie, amplitude and phase, of a light wave. Can be understood.

3A and 3B are conceptual views for explaining the principle of the hologram.

Referring to FIG. 3A, the coherent light from the laser light source 201 is split into two through a splitter 202.

One of these rays illuminates the subject 207, and light diffused from the surface of the subject 207 reaches the holographic photosensitive material 205. Hereinafter, this ray is called an object wave.

Mirrors

203 and 204 can be used to divert the beam.

The other ray is redirected to the mirror 208 and diffuses through the lens 206 to directly reach the holographic photosensitive material 205. Hereinafter, this light beam is called a reference wave.

The object wave and the reference wave interfere with each other on the holographic photosensitive material 205 to produce about 500 to 1,500 very delicate and complicated interference patterns. Holographic storage media recording such interference fringes are called holograms.

Subsequently, when a light beam such as a reference wave generated as shown in FIG. 3B, that is, a reproducing wave is projected onto the holographic photosensitive material 205, an interference fringe acts as a diffraction grating so that light is emitted at a position different from the direction in which the reference wave is incident. Diffraction, the diffracted light is gathered and formed as the light generated by the first object, thereby projecting the hologram image 209. That is, the first object light may be reproduced through the hologram to be represented as the hologram image 209.

At this time, when looking inside the reproduced wavefront, the first object is visible, but it looks as if the object is inside. As you move the viewing point, the position of the object changes, making it look as if you are viewing a three-dimensional image. In addition, since the wavefront of the original object is reproduced, it can also interfere with the wavefront coming from a very deformed object.

The representation of the hologram image 209 may be classified into a transmission hologram image representation and a reflection holography image display scheme according to a reproduction scheme.

4A to 4C are conceptual diagrams for describing the transmissive holography method, and FIGS. 5A to 5C are conceptual views for explaining the reflective holography method.

The transmissive holographic image expression method is a method of observing the image transmitted through the light from the back of the hologram in front of the hologram. In the transmission holographic image representation, the object wave and the reference wave are exposed to the holographic photosensitive material in the same direction at the time of manufacture, and the generated holographic image is characterized by vivid and bright colors.

Referring to FIG. 4A, light emitted from the laser light source 301 passes through a spatial filter 303 and then spreads into a smooth spherical wave. One of the spherical waves divided into two light beams in the beam splitter 305 is illuminated on the object 308 to produce an object wave, and the other is illuminated on the holographic photosensitive material 307 as a reference wave. The object wave illuminated on the object 308 is also illuminated on the holographic photosensitive material 307.

Mirrors

304, 306, 309 may be used to redirect the light beam.

At this time, the object wave and the reference wave illuminated on the holographic photosensitive material 307 interfere with each other to form an interference pattern, and the interference pattern is recorded on the holographic photosensitive material 307.

That is, as shown in FIG. 4B, the object wave and the reference wave are projected together on the same surface of the holographic photosensitive material 307 to generate an interference fringe.

Subsequently, as illustrated in FIG. 4C, when the same reproduction wave as the reference wave is projected onto the holographic photosensitive material 307, the object wave is transmitted in a direction opposite to the plane where the previous object wave and the reference wave are incident to generate a hologram image. .

Next, the reflective holographic image display method is manufactured so that the object wave and the reference wave are incident on the holographic photosensitive material in opposite directions to each other in such a way that the image reflected by the light in front of the hologram can be observed in front of the hologram. The holographic image generated by the reflective holographic image display method is characterized by excellent stereoscopic effect.

Referring to FIG. 5A, light emitted from the laser light source 401 passes through a spatial filter 403 and then spreads into a smooth spherical wave as shown in FIG. 4A, and two beams are transmitted through a beam splitter 405. One is illuminated on the object 408 to produce an object wave, and the other is directly illuminated on the holographic photosensitive material (film) 407 to produce a reference wave.

Mirrors

404, 406, 409 may be used to redirect the beam. However, unlike FIG. 4A, the reference wave and the object wave are illuminated with the holographic photosensitive material 407 at positions opposite to each other.

That is, as shown in FIG. 5B, the reference wave is projected onto the left side of the holographic photosensitive material 407, and the object wave is projected through the upper right side of the holographic photosensitive material 407. Subsequently, as shown in FIG. 5C, when the same reproduction wave as the reference wave is projected onto the holographic photosensitive material 407, the object wave is transmitted in the opposite direction to generate a hologram image.

Meanwhile, in relation to an embodiment of the present invention, the holographic image may be displayed according to the set holographic pattern. The holographic pattern means that the holographic image projected through the hologram output unit 300 is changed to a preset pattern according to time and provided to the user.

The holographic pattern may be variously set in the manner described below.

First, the holographic pattern may be set by changing the distance difference between the hologram output unit and the hologram image over time. According to the above configuration, since the hologram image projected through the hologram output unit 300 can be moved up and down, a predetermined holography pattern can be set.

Next, the holographic pattern may be set by changing the shape of the holographic image projected by the hologram output unit 300 over time. For example, the controller 180 may control the hologram image projected by the hologram output unit 300 to have a circular shape at first, and then change the rectangular shape as time passes.

In addition, a method of moving or rotating the hologram image projected through the hologram output unit 300 from side to side may be applied. That is, the holographic pattern may be set by rotating the projected holographic image while moving the left and right, rotating, or left and right according to time while maintaining the same distance difference between the hologram output unit 300 and the holographic image.

In addition, the holographic pattern may be set by changing the color or size of the projected hologram image or adjusting the hologram image to blink. Furthermore, the holographic pattern may be set through projection brightness, refresh rate, illumination, vibration feedback, sound insertion, image insertion, repetitive projection, and the like.

In the above description, it is assumed that the holographic pattern is set by an individual factor, but the holographic pattern may be set by a plurality of elements. For example, while changing the distance difference between the hologram output unit 300 and the hologram image according to time, the holographic pattern may be set to rotate and rotate the projected hologram image from side to side.

In addition, although the description has been made on the assumption that the holographic pattern is set for the entire holographic image, this is merely an example and the holographic pattern may be applied to only a part of the holographic image.

In the above description, the transmission holographic image display method and the reflection holographic image display method have been described, but the method of outputting the holographic image may be various.

On the other hand, holograms can be classified into three types according to the method of generation and reproduction. As described above, holograms are generated by acquiring i) analog holography methods such as transmission type holographic image display method and reflection type holographic image display method, and ii) 3D digital data captured by image sensor such as CCD camera or CMOS sensor. Digital holography, a form that can be stored, processed, and edited; and iii) projecting images through a special semi-transmissive screen, as well as a technique for creating holographic effects by taking super-view stereoscopic images, although not holograms. Iii) similar holograms (pseudo holograms) to mimic a holographic image effect. Examples of pseudo-holograms include free format, peppers ghost, and Leia display system.

In addition, examples of the 3D holography method include a Project Vermeer, a box, a 3D midair plasma display q method, and the like.

Meanwhile, in the mobile terminal according to the present invention, the hologram image may be implemented through any one of the various methods described above or another method other than the method described above.

This hologram image is a three-dimensional image output in an arbitrary space. Therefore, in order to touch the hologram image, the user must place his hand in an arbitrary space where the hologram image is output. However, such a hologram image is only an image output in a three-dimensional space, and since there is no substance, the user tries to touch the hologram image, but nothing is actually touched. Accordingly, the present invention provides a mobile terminal capable of providing a user experience such as a user actually touching a hologram image or an object corresponding to the hologram image, and a control method thereof.

As described above, the present invention provides an interaction between the holographic image and the user, and further provides a more realistic user interaction according to the characteristics of the object according to the hologram object.

Hereinafter, a structure and a control method of the hologram module for changing the output position of the hologram image 300 'will be described.

The hologram output unit 300 includes a laser 310, a spatial light modulator 320, a scanning mirror 330, and a variable focal lens 340.

The laser light emitted from the laser 310 in the y-axis direction is incident on the spatial light modulator 320. The laser 310 according to the present embodiment may be implemented as a femto laser that emits a pulsed laser beam in femtosecond units. Accordingly, since the hologram image 300 'made of the femto laser light is harmless to the body, the user may apply a gesture signal while touching a part of the body to the hologram image 300'.

The spatial light early 320 emits modulated light to reach the scanning mirror 330. The spatial light modulator 320 selectively reflects the light incident from the laser 310 according to the shape of the pattern to be formed.

The mirror 334 of the scanning mirror 330 reflects light in the z-axis direction, and the light reflected by the mirror 334 is incident on the variable focus lens 340 to provide a hologram image 300 'to the outside. Output The scanning mirror 330 is composed of a frame 331, an actuator 332, a scan plate 333 and a mirror 334. The frame 331 is rotatably coupled to the scan plate 333. A mirror 334 reflecting light incident on the scan plate 333 is disposed. The actuator 332 is disposed between the frame 331 and the scan plate 333 to rotate the scan plate 333 within a predetermined angle by an electric field applied from the outside. Accordingly, the reflection direction of the light reflected by the mirror may be changed. The scanning mirror 330 may be embodied as a high precision scanning mirror (MEMS Scanning Mirror). Accordingly, the controller 180 can move the output position of the hologram image along the x-axis and the y-axis through the control of the scanning mirror 330.

Meanwhile, the variable focus lens 340 is a lens whose aperture value is changed, and the focal length for adjusting the position where the hologram image 300 ′ is displayed can be changed. Accordingly, the controller 180 may adjust the output position at which the hologram image 300 'is displayed along the z-axis direction by changing the aperture value of the variable focus lens 340.

That is, the hologram image 300 ′ may be moved along the x and y axes through the scanning mirror 330, and the hologram image 300 ′ may be moved along the z axis using the variable focus lens 340. have. The hologram image 300 ′, which may be implemented through the hologram output unit 300, may include both a 2D (2D) planar image and a 3D (3D) stereoscopic image.

The hologram output unit 300 according to the present invention may be disposed adjacent to the

dual camera units

125a and 125b mounted on the mobile terminal. In the drawing, the first and

second cameras

125a and 125b are shown to be disposed adjacent to the variable lens 240, but embodiments are not limited thereto.

The dual camera unit includes first and second cameras 125a and 126b spaced apart by a predetermined distance. The first and

second cameras

125a and 125b photograph the hologram image 300 'output by the hologram output unit 00 and an object disposed adjacent to the hologram image 300' and photograph the hologram image. A depth of 300 ′ and a distance to the object may be detected. Each of the first and

second cameras

125a and 125b includes a lens unit 125a 'and 125b' including a plurality of lenses and an image sensor 125a '' and 125b ''. The lens units 125a 'and 125b' and the image sensors 125a 'and 125b' are arranged along the z axis. The

dual cameras

125a and 125b may acquire distance information of the subject.

The controller 180 may control the output of the hologram image 300 'by using the images sensed by the first and

second cameras

125a and 125b.

The controller 180 outputs the hologram image 300 'by the hologram output unit 300 (S410). After the hologram image 300 'is output, the output position of the hologram image 300' is determined by activation of the first and

second cameras

125a and 125b (S420). The controller 180 uses the images photographed by the first and

second cameras

125a and 125b to detect the hologram from a distance and a specific reference point of the hologram image 300 ′ from the body of the mobile terminal 100. The output position of the image 300 ′ is determined. For example, the memory 170 may store information about a preset output location of the hologram image 300 ′ or store information about a preset output location corresponding to a specific hologram image.

The controller 180 may correct the output position of the hologram image 300 'by using the information about the output position of the hologram image 300' and the output position previously stored in the memory (S430). For example, when the hologram image 300 ′ is output farther or closer than a reference from the main body of the mobile terminal 100, the controller 180 controls the variable focus lens 340 and moves to a specific position. When the output is out of the way, the scanning mirror 330 is controlled to change the output position.

However, the controller 180 can detect only the output position of the hologram image 300 'by activating only one camera of the dual camera unit.

The controller 180 detects an external object (eg, a user's hand, a stylus pen, etc.) by the proximity sensor 140 (S440), and controls the first and

second cameras

125a and 125b. Activate to detect the gesture (S450). The controller 180 controls the hologram image or forms a control command to perform a specific function of the mobile terminal 100 based on the gesture.

According to the present exemplary embodiment, the output position of the hologram image 300 'may be changed using the scanning mirror 330 and the variable focus lens 340, and the output position of the hologram image 300' may be changed using a dual camera. As a result, the holographic image can be output to a position more suitable for the user.

In addition, since the hologram output unit 300 and the dual camera unit are disposed adjacent to each other, a specific function of the mobile terminal may be controlled by detecting a gesture signal of a user approaching or overlapping the hologram image.

The hologram output unit 300 and the camera 125 of the mobile terminal 100 according to the present embodiment are disposed adjacent to each other. The hologram output unit 300 according to the present exemplary embodiment includes a laser 310, a spatial light modulator 320, a scanning mirror 330, a variable focal lens 340, and a mirror unit 350. ). Since the components of the hologram output unit 300 according to the present exemplary embodiment are substantially the same as or similar to those of the hologram output unit 300 of FIGS. 6A and 6B except for the mirror unit 350, the components may be the same. Like reference numerals refer to like elements, and redundant descriptions will be omitted.

The hologram output unit 300 according to the present exemplary embodiment may also move the hologram image along the x and y axis directions through the scanning mirror 330 and along the z axis direction through the variable focus lens 340. Can be.

The laser light emitted from the laser 310 reaches one surface of the mirror unit 350. The mirror unit 350 includes a double-sided reflective area formed to reflect light on both sides. The mirror unit 350 reflects the reached laser light toward the scanning mirror 330, and the laser light is hologramd through the variable focus lens 340 through the mirror 334 of the scanning mirror 330. It is output as the image 300 '.

The camera 125 according to the present embodiment may be implemented as an optical zoom camera. The camera 125 may include an incident lens 125c, a zoom lens group 125d, and an image sensor 125e. The zoom lens group 125c may include a plurality of lenses to have several focal lengths. The optical zoom camera may be used to capture images according to an arrangement, and distance information about a subject may be obtained.

The mirror unit 350, the zoom lens group 125d, and the image sensor 125e are arranged side by side along the x axis, and the incident lens 125c is a y axis perpendicular to the x axis from the mirror unit 350. Is placed in the direction. The incident lens 125c and the variable focus lens 340 are arranged side by side. The incident lens 125c and the variable focus lens 340 are disposed adjacent to one surface of the main body of the mobile terminal 100.

Light incident on the incident lens 125c reaches the other surface of the mirror unit 350 and enters the zoom lens group 125d. That is, the mirror unit 350 is disposed between the hologram output unit 300 and each component of the camera 125.

According to this embodiment, a plurality of cameras is unnecessary by using a zoom camera. In addition, since the plurality of lens groups are arranged in the horizontal direction (on the drawing, in the x-axis direction) instead of the thickness direction (on the drawing, in the z axis direction) of the main body of the mobile terminal 100, The problem of thickening can be prevented.

8 and 8B are conceptual views illustrating a configuration of a hologram output unit according to still another embodiment.

According to the present embodiment, the controller 180 outputs the 2D hologram image by the hologram output unit 300. The hologram output unit 300 according to the present exemplary embodiment includes a laser 310, a spatial light modulator 320, and a scanning mirror 330. The hologram output unit 300 according to the present exemplary embodiment does not include the variable focus lens 340 (see FIG. 6A).

Accordingly, the controller 180 may move the position of the hologram image 300 ′ along the x and y axis directions using the scanning mirror 330. The controller 180 may change the output position of the hologram image 300 ′ through the scanning mirror 330 based on a specific control command.

The hologram output unit 300 according to various embodiments of the present disclosure is disposed on one surface of the mobile terminal. Hereinafter, the structure of the hologram output unit formed on the front surface of the display unit 151 of the mobile terminal 100 and the output method of the hologram image will be described.

9A is a conceptual diagram illustrating a layout structure of a hologram output unit and a method of outputting a hologram image, according to an exemplary embodiment. Referring to FIGS. 9A and 9B, the hologram output unit 300 is disposed adjacent to the first and

second cameras

125a and 125b, and the movement in which the display unit 151 is mounted. The hologram image 300 ′ is output toward the front of the terminal. Referring to FIG. 6A, the variable focus lens 340 is disposed in front of the main body of the mobile terminal 100.

According to the present exemplary embodiment, a shielding layer (not shown) may be further disposed between the first and

second cameras

125a and 125b and the hologram output unit 300.

The hologram output unit 300 may be formed in a bezel portion surrounding the display unit 151, and the first and

second cameras

125a and 125b may be disposed in one region where the display unit is recessed. It is not limited to this.

Referring to (b) of FIG. 9A, the hologram image 300 ′ may be output in the vertical direction of the display unit 151 (in the drawing, in the z-axis direction). However, the direction in which the hologram image 300 'is output based on a user's control command or setting is not limited thereto.

The direction in which the holographic image 300 'is output may be changed by a function of the mobile terminal including previously stored setting information, a user's control command, visual information included in the holographic image 300', and the like. .

The controller 180 may control the output of the hologram image 300 'based on the movement of the body of the mobile terminal 100. The controller 180 may include at least one of an acceleration sensor, a magnetic sensor, a gravity sensor, and a gyroscope sensor that detects movement of the main body of the mobile terminal 100. The hologram output unit 300 is controlled to limit the output of the hologram image 300 'when the main body moves to achieve a predetermined angle θ1 or more from the ground. In particular, the hologram output unit 300 is controlled so that the hologram output unit 300 is not output when the main body rotates based on the other area facing the one area of the main body in which the hologram output unit 300 is disposed.

Therefore, the laser light forming the hologram image may be controlled so as not to be directly transmitted to the user's eyes.

Referring to FIG. 9B, the mobile terminal 100 further includes a rotation support part 210 that supports a region of the main body. The rotation support part 210 may be formed to surround one area of the main body, and may be formed to support the one area. When the rotation support part 210 supports a region of the main body, the main body is formed to have a specific angle with the ground. The rotation support unit 210 is bent at an end of the first region and the first region formed to surround the side of the main body adjacent to the hologram output unit 300, a pair of first overlapping with the other side of the main body A second area, the pair of second areas being rotatably connected with the other sides, respectively.

When the main body is supported by the rotation support unit 210, the control unit 180 adjusts the output position of the hologram based on the sensing unit 140 that detects the movement of the main body. The scanning mirror 330 of the 300 is controlled.

Referring to FIG. 9B (b), when the controller 180 detects that the angle of the main body is changed from the ground by the rotation support unit 210, the control unit 180 outputs the hologram in the y direction based on the z axis. Change the angle

Accordingly, the user may adjust the angle of the main body by the rotation support 210, and adjust the angle of the main body to view the screen information and the hologram image displayed on the display at a more comfortable angle.

The mobile terminal 100 according to FIG. 9C includes a crown 220 for changing an arrangement angle of the hologram output unit 300. The crown 220 is exposed to the outside of the terminal body and has a shape rotatable by a user.

The hologram output unit 300 is connected to the crown 200 so that the hologram output unit 300 disposed inside the main body rotates in conjunction with the hologram output unit 300. When the variable focus lens 340 is disposed in the z-axis direction so that the laser light constituting the hologram image is output in the z-axis direction, the hologram output unit 300 rotates about the x-axis. Is formed.

When the hologram output unit 300 rotates by the rotation of the crown 220, the position where the hologram image 300 ′ is output is rotated. The hologram image 300 ′ is output while moving along the y-axis direction based on the z-axis by the rotation of the crown 200.

Referring to (b) of FIG. 9C, when the crown 220 rotates toward the rear side of the mobile terminal 100, the hologram image 300 ′ changes the hologram image 300 ″ in which the output position is changed. Is output.

Accordingly, the user can adjust the output angle of the hologram image by rotating the crown exposed to the outside of the terminal body.

Referring to FIG. 10, the cooling member 230 includes a diffusion plate 231, a liquefaction line 232, an evaporator 233, and a vapor line 234. The diffusion plate 231 is disposed adjacent to the hologram output unit 230 that generates heat and the first and

first cameras

125a and 125b.

The heat generated by driving the hologram output unit and the camera disposed adjacent to each other by the cooling member 230 may be reduced.

11A and 11B are conceptual views illustrating a method of controlling the output of a holographic image.

Referring to FIG. 11A, the hologram output unit 300 outputs a first hologram image 501 in front of the mobile terminal 100 in which the display unit 151 is disposed. The first hologram image 501 may be output at a position separated by a predetermined height from the front surface of the mobile terminal 100.

The controller 180 detects the first hologram image 501 and an external object by an activated camera unit. The controller 180 outputs the hologram image 501 to output the first hologram image 501 to an area adjacent to the external object when the external object (for example, a user's hand) is detected by the camera unit. ).

Referring to FIG. 6A, the controller 180 changes an output position of the hologram image 300 'when the external object is disposed far away from the output hologram image 300' with respect to the body of the mobile terminal. The variable focus lens 340 is controlled. The controller 180 collects information of the external object by the camera unit, and controls the variable focus lens 340 based on the information. The camera unit may be implemented by the dual camera illustrated in FIG. 6A or the zoom camera illustrated in FIG. 7A.

According to the present embodiment, the user may output the hologram image at a position where the object is to be output and located in one area of the mobile terminal.

Referring to FIG. 11B, the controller 180 activates the detector 140 to detect the movement of the body of the mobile terminal after the first hologram image 501 is output.

The controller 180 controls the scanning mirror 330 of the hologram output unit 300 to change the output angle of the hologram image when the inclination of the mobile terminal main body 100 is changed to be larger than the first inclination. . The controller 180 may fix the angle of the hologram image 300 'that was initially output when the inclination change is smaller than a predetermined angle. The controller 180 may set an output angle of the first hologram image 501 based on the degree of change of the inclination based on the detection unit.

According to the present embodiment, when the user detects a movement of the terminal body while using the mobile terminal, the user changes the output angle of the holographic image in response thereto, and thus, the user may receive a holographic image output at an angle suitable for the posture of the terminal. .

12A to 12E are conceptual views illustrating a method of controlling a mobile terminal based on a control command applied to a hologram image.

Referring to FIG. 12A, the display unit 151 outputs first screen information 511 and the hologram output unit 300 outputs a second hologram image 502. For example, when an event occurs, the controller 180 may control the hologram output unit 300 to output information related to the event to the second hologram image 502.

When the second holographic image 502 is output, the controller 180 may activate the camera 125. The controller 180 displays the second screen information 512 related to the second hologram image 502 when an object (for example, a user's hand) adjacent to the hologram image 502 is detected. The unit 151 is controlled. When the hologram image 502 includes information related to an event, the second screen information 512 may correspond to an execution screen of an application related to the event. When the object is detected, the controller 180 executes an application related to the information related to the event. The controller 180 may limit the output of the hologram when the application is executed.

On the other hand, the controller 180 detects a specific object approaching the camera 125 by the camera 125, the hologram output unit 300 to limit the output of the second hologram image 502 ).

For example, when the camera 125 or the hologram output unit 300 is covered by a user's finger, the camera 125 detects an adjacent finger and controls the output hologram image to disappear.

Meanwhile, when the sensing unit 140 including the proximity sensor is disposed in an area adjacent to the hologram output unit 300, the controller 180 may detect the proximity object by the sensing unit 140. The output of the 2 hologram image 502 may be limited.

According to the present embodiment, when an alarm or an event occurs, the screen information output to the display unit 151 is output, and information related to the event may be provided through a hologram image. In addition, a notification of an event may be confirmed or additional information may be provided through a camera adjacent to the hologram output unit.

Referring to FIG. 12B, the controller 180 controls the hologram output unit 300 to output a third hologram image 503 including notification information indicating the occurrence of an event. For example, the event may correspond to a call received from an external device. The controller 180 outputs a third hologram image 503 including notification information of the event while maintaining the output of the first screen information 511 on the display unit.

When the event occurs, when the hologram image is output, when the proximity object (the user's hand) is detected by a proximity sensor, the controller 180 may activate the camera 125.

When the object adjacent to the third hologram image 503 is detected by the camera 125, the controller 180 provides a function of an application corresponding to the notification information included in the third hologram image 503. Run it. For example, when the call is received, the user's finger is detected by the camera 125 adjacent to the third hologram image 503 to execute a function of executing a phone application and making a call connection.

Meanwhile, the controller 180 may control to continuously output the first screen information 511 on the display unit 151 while an application function is executed. Alternatively, when outputting time information is required for executing the function, the execution screen may be output or the display unit 151 may be divided to output the execution screen and the first screen information together.

Although not shown in the drawing, the controller 180 limits the output of the second hologram image 502 when the object adjacent to the main body of the mobile terminal is detected by the camera 125, and the call You can run a function that blocks the connection.

According to the present embodiment, a specific function can be executed using the output hologram image. While continuously receiving the screen information being output, it is possible to perform a function related to the received event.

12C and 12D, the controller 180 activates the camera 125 while the fourth hologram image 504 is output. The controller 180 controls the fourth holographic image 504 by a specific object detected by the camera 125.

Referring to FIG. 12C, when it is detected that a specific object located adjacent to the fourth hologram image 504 moves away from the camera 125 in a diagonal direction, the fourth hologram image 504 may be used. The hologram output unit 300 is controlled to extend the size of the hologram output unit 300.

Meanwhile, referring to FIG. 12D, when the finger is detected to move along the horizontal direction of the mobile terminal 100 by the camera 125, the output position of the fourth hologram image 504 may be changed. The hologram output unit 300 is controlled.

The output position of the hologram image may be controlled by the variable focus lens 340 and the scanning mirror 330 of the hologram output unit 300.

Referring to FIG. 12E, the controller 180 may display first and second screen information 514a on the first and second areas of the display unit 151 based on a touch input applied on the display unit 1510. And 514b, the first and

second screen information

514a and 514b may correspond to execution screens of different applications.

When the first and

second screen information

514a and 514b are output, the controller 180 displays a fifth hologram image 505 including first and

second icons

505a and 505b of applications corresponding to the first and

second screen information

514a and 514b, respectively. The hologram output unit 300 is controlled to output.

On the other hand, the controller 180 includes first and second information 504a and 504b of the respective application when the movement of an object (finger) that is gradually approached or moved away by the camera 125 is detected. The hologram output unit 300 is controlled to output the modified hologram image 505. The information included in the deformed hologram image 505 may correspond to some information included in an execution screen of each application, a function guide of the application, and the like.

According to the exemplary embodiments, the information included in the hologram image and the hologram image may be controlled by detecting a specific object moving away from or close to the hologram image. Therefore, the user can more easily control the output hologram image and its corresponding function without a touch input or a control command applied to the display unit.

Referring to FIG. 13A, the controller 180 controls the hologram output unit 300 to output a sixth hologram image 506 including control information for controlling a function while a specific function is executed. . For example, when the camera 121 for photographing is activated, and the preview image by the camera 121 is output to the display unit 151, the sixth hologram image 506 is output.

The controller 180 controls the camera 125 to detect a gesture adjacent to the sixth hologram image 506. In addition, when a specific function is executed based on a gesture, the controller 180 outputs the hologram output unit 300 to output a modified hologram image 506 'including noti information indicating the execution of the function. To control.

Accordingly, the user may use a gesture to execute a function of an application, and information about the same may be provided through a hologram image.

Referring to FIG. 13B, while the display unit 151 outputs the third screen information 516 and the third hologram image 503 is output, the camera 125 is activated.

When a specific gesture is detected by the camera 125, the controller 180 executes a preset function using the third hologram image 503 and the third screen information 516. For example, the controller 180 detects a specific gesture in a state in which the third hologram image 503 and the third screen information 516 are output by the function of each application or one application. The memory 170 is controlled to capture and store a third hologram image 503 and the third screen information 516 together.

According to the present exemplary embodiment, a gesture may be detected while the holographic image is output to control a specific function and the holographic image.

The present invention described above can be embodied as computer readable codes on a medium in which a program is recorded. The computer-readable medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of computer-readable media include hard disk drives (HDDs), solid state disks (SSDs), silicon disk drives (SDDs), ROMs, RAMs, CD-ROMs, magnetic tapes, floppy disks, optical data storage devices, and the like. This also includes implementations in the form of carrier waves (eg, transmission over the Internet). In addition, the computer may include the controller 180 of the terminal. Accordingly, the above detailed description should not be interpreted 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.

Since the present embodiments can output the hologram image to a suitable position by the hologram output unit for adjusting the output position and the output distance, the embodiments can be applied to various industrial fields related thereto.

Claims

A hologram output unit configured to output a hologram image in a preset space and including a scanning mirror to change an output position of the hologram image;

A camera unit disposed adjacent to the hologram output unit and configured to sense a distance to determine an output position of the hologram; And

And a controller for controlling the scanning mirror to change the output position of the holographic image.
The method of claim 1,

The hologram output unit,

And a variable focus lens for adjusting an output distance of the hologram image from the hologram output unit.
The method of claim 2,

The camera unit comprises a pair of cameras for sensing the distance.
The method of claim 2,

The camera unit is made of a zoom camera formed to detect the distance,

The hologram output unit further comprises a laser, a spatial light modulator for emitting a laser light,

Further comprising a mirror unit disposed between the scanning mirror and the camera unit,

And light incident from the outside is reflected by the camera portion by one surface of the mirror portion, and laser light incident on the other surface of the mirror portion is reflected by the scanning mirror.
The method of claim 5,

The zoom camera includes an incident lens, a plurality of lens groups and an image sensor,

And the variable focus lens and the incident lens are disposed side by side on one surface of the main body of the mobile terminal.
The method of claim 1,

And a diffusion plate disposed adjacent to the camera unit and the hologram output unit, and further comprising a cooling member for cooling the generated heat.
The method of claim 1,

And a proximity sensor disposed adjacent to the hologram output unit to detect a specific object approaching the hologram image.
The method of claim 7, wherein

The control unit activates the camera unit when the specific object is detected by the proximity sensor.
The method of claim 2,

Further comprising a detector for detecting the movement of the mobile terminal body,

And controlling the hologram output unit to change an output angle of the hologram image based on one surface of the main body based on the movement of the mobile terminal.
The method of claim 9,

A rotation support part mounted on a region of the main body in which the hologram output part is disposed and supporting the main body by changing an angle of the main body from a ground;

The control unit is a mobile terminal, characterized in that for changing the output angle of the holographic image based on the angle of the main body supported by the rotation support.
The method of claim 2,

The variable focus lens is disposed adjacent to an area of the main body to output the hologram image to the outside,

One end is further exposed to the outside of the main body and mounted so that the other end is connected to the hologram output further comprises a crown;

And the hologram output unit rotates so that the position of the variable focus lens is changed by the rotation of the crown.
The method of claim 3,

The control unit changes the output position of the holographic image based on the relative position of the specific object detected by the camera and the holographic image.
The method of claim 12,

The control unit is characterized in that for changing the output position of the holographic image to contact the specific object.
The method of claim 12,

The camera detects a gesture while the holographic image is output,

The hologram image comprises information describing a function related to a gesture.
The method of claim 3,

The hologram image includes information related to a specific function,

The controller controls the function based on the movement of the specific object with respect to the hologram image.
The method of claim 15,

The control unit terminates the specific function when it is detected that the specific object moves by the camera.
The method of claim 15,

Further comprising a display unit for outputting the screen information,

The display unit continuously outputs the screen information while the function on the holographic image is executed.
The method of claim 15,

The specific function is related to the issued event or the mobile terminal, characterized in that the screen information output on the display unit.
In the mobile terminal comprising a hologram output unit for outputting a holographic image and a camera unit for sensing the distance, the mobile terminal,

Outputting a hologram image;

Detecting an output position of the hologram image by a camera unit; And

And correcting an output position of the hologram image.
The method of claim 19,

Detecting a specific object while the holographic image is output;

Changing the output position based on the position and movement of the specific object, or executing a specific function.