KR20130076453A - Mobile terminal - Google Patents

Abstract

PURPOSE: A mobile terminal is provided to include a hologram image output device with multiple functions while having an improved structure. CONSTITUTION: A film unit (1110) is installed in a main body. When light is radiated, the film unit forms a hologram image. An irradiation unit (1122) irradiates the light to the film unit. A light source (1121) supplies the light to the irradiation unit. The irradiation unit is movably formed on the film unit to adjust the radiation of the light on a side of the film unit.

Description

[0001] MOBILE TERMINAL [0002]

Embodiments of the present invention relate to a mobile terminal capable of outputting a holographic image.

As the functions are diversified, the terminal is implemented in the form of a multimedia device having a complex function of, for example, taking pictures or moving pictures, playing music or moving picture files, receiving games and receiving broadcasts have.

The terminal can move And may be divided into a mobile terminal and a stationary terminal depending on whether the mobile terminal is a mobile terminal or a mobile terminal. A portable terminal is a portable device having one or more functions capable of performing voice and video communication, capable of inputting / outputting information, and storing data, which can be carried while being portable.

In order to support and enhance the functionality of such terminals, it may be considered to improve the structural and / or software parts of the terminal.

As an extension of the function of the terminal, a terminal capable of displaying a holographic image may be considered. Accordingly, various attempts have been made as a method for outputting a holographic image.

Accordingly, a hologram device that can form various holograms and can be mounted in a mobile terminal more compactly can be considered.

An object of the present invention is to provide a mobile terminal capable of outputting a holographic image as a terminal of a different type from the conventional.

Another object of the present invention is to provide a terminal having a hologram image output device having a more improved structure and having a complex function.

In order to achieve the above object of the present invention, a mobile terminal according to an embodiment of the present invention, the terminal body, and a film portion mounted to the main body, and forms a holographic image when light is radiated; And a light source for supplying light to the irradiating portion, wherein the irradiating portion is formed to radiate the light to the film portion, and the irradiating portion is relatively movable with respect to the film portion so as to control emission of light to one surface of the film portion. Is formed.

According to an example related to the present invention, the irradiating unit and the light source may be integrally formed with an optical module, and the optical module may be slidably movable with respect to the main body so as to adjust emission of light with respect to one surface of the film unit. have.

According to an example related to the present disclosure, the optical module may be formed to be slidably movable in a second direction crossing the first direction with respect to the main body extending in the first direction.

According to an example related to the present invention, the light emission of the light source and the irradiator to the film unit may be controlled according to the slide movement distance to adjust the size of the hologram image.

According to an example related to the present invention, the irradiation unit and the light source may be integrally formed with an optical module, and the optical module may be hinged to be rotatable with respect to the main body.

According to an example related to the present invention, the display unit may further include a display disposed on the rear surface of the film unit and formed to transmit light through the film unit.

According to an example related to the present invention, the display may be formed as a transparent display.

In addition, in order to achieve the above object, another embodiment of the present invention, the first body and the second body is coupled to the relative movement so as to implement a closed state and an open state, mounted on the second body, the light is emitted and a light module having a light source and an irradiating part to emit the light to the film part, wherein the optical part is capable of protruding from the second body in the open state. It is disclosed that the mobile terminal is formed so as to be relatively movable relative to the film portion to control the emission of light to one surface of the film portion.

According to an example related to the present invention, the optical module may be formed to be movable in a second direction crossing the first direction with respect to the second body extending in the first direction.

According to an example related to the present invention, the light emission of the light source and the irradiator may be controlled according to the moving distance of the optical module to adjust the size of the hologram image.

According to an example related to the present invention, light emission of the light source and the irradiator may be controlled according to the moving distance of the optical module to form different hologram images.

According to an example related to the present invention, the second body includes a receiving portion into which the optical module is inserted, and the optical module protrudes from the receiving portion or is received according to the relative movement of the first body and the second body. Can be inserted into the negative.

According to an example related to the present disclosure, the first body may include a display, and the hologram image may be displayed on one surface of the second body in an open state.

According to an example related to the present invention, the relative movement is such that the first body and the second body are coupled to each other by a slide module, any one body can be moved relative to the other body.

According to an example related to the present invention, the relative movement is the first body and the second body is coupled to each other by a hinge module, any one body can be rotated relative to the other body.

In addition, in order to realize the above object, another embodiment of the present invention is mounted on the first body and the second body and the second body are coupled to be relatively movable so as to implement a closed state and an open state, the light is emitted and a hologram module having a light source and an irradiator to radiate the light to the film part, wherein the film part forms a hologram image when the radiation is radiated, and prevents the hologram image from being interfered by the first body in the open state. To this end, disclosed is a mobile terminal which is formed so that light emitted from the film portion is not covered by the first body.

According to an example related to the present invention, the first body may be formed to be tiltable.

According to an example related to the present invention, the film part may be formed to be tiltable.

In order to achieve the above object, another embodiment of the present invention, the terminal body, and a film portion mounted to the main body, when the light is radiated to form a holographic image, the film portion radiates the light Disclosed is a mobile terminal including a light emitting unit configured to emit light and a light source for supplying light to the light emitting unit, and the film unit being movable to adjust a holographic image projected onto any one surface of the main body.

According to an example related to the present invention, the irradiation part may be formed to be movable in response to the movement of the film part.

The mobile terminal according to at least one embodiment of the present invention configured as described above can more smoothly output a hologram image in a state where the respective components constituting the terminal overlap each other.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.
2 is a front perspective view of a mobile terminal according to an embodiment of the present invention;
3 is a front view of a mobile terminal for explaining an operation state of the mobile terminal according to the present invention;
4 illustrates a mobile terminal including a holography module in accordance with one embodiment of the present invention.
5 is a conceptual diagram for explaining the holographic principle.
6 is a conceptual diagram for explaining a transmissive holography method.
7 is a conceptual diagram for explaining a reflective holography method.
8 is a conceptual diagram illustrating an optical module and a film unit disposed in a mobile terminal in accordance with an embodiment of the present invention.
9 is a view showing an example of the film portion is formed to be adjustable angle in connection with an embodiment of the present invention.
10 illustrates an optical module rotatably formed with respect to a body in accordance with an embodiment of the present invention.
FIG. 11 is a conceptual diagram illustrating an example of arrangement of an optical module and a film unit in a slide type terminal in accordance with an embodiment of the present invention. FIG.
FIG. 12 is a conceptual diagram illustrating a change of a portion to which light is irradiated due to a slide movement in relation to an embodiment of the present invention. FIG.
FIG. 13 is a conceptual diagram illustrating an example of a mobile terminal that is configured to implement a closed state and an open state in accordance with an embodiment of the present invention. FIG.
14 to 16 are conceptual views illustrating an example of a mobile terminal formed to reduce or eliminate interference between a body and a film portion.

Hereinafter, a mobile terminal according to the present invention will be described in detail with reference to the drawings. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role. In the present specification, the same or similar reference numerals are given to different embodiments in the same or similar configurations. As used herein, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise.

The mobile terminal described in this specification may include a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), and navigation. However, the technical idea described herein may be applied to fixed terminals such as digital TVs and desktop computers.

Overall configuration

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

The mobile terminal 100 includes a wireless communication unit 110, an audio / video input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory 160, A controller 170, a controller 180, a power supply 190, and the like. The components shown in FIG. 1 are not essential, and a mobile terminal having more or fewer components may be implemented.

Hereinafter, the components will be described in order.

The wireless communication unit 110 may include one or more modules for enabling wireless communication between the mobile terminal 100 and the wireless communication system or between the mobile terminal 100 and the network in which the mobile terminal 100 is located. For example, the wireless communication unit 110 may include a broadcast receiving module 111, a mobile communication module 112, a wireless Internet module 113, a short range communication module 114, and a location information module 115 .

The broadcast receiving module 111 receives a broadcast signal and / or broadcast related information from an external broadcast management server through a broadcast channel.

The broadcast channel may include a satellite channel and a terrestrial channel. The broadcast management server may refer to a server for generating and transmitting broadcast signals and / or broadcast related information, or a server for receiving broadcast signals and / or broadcast related information generated by the broadcast management server and transmitting the generated broadcast signals and / or broadcast related information. The broadcast signal may include a TV broadcast signal, a radio broadcast signal, a data broadcast signal, and a broadcast signal in which a data broadcast signal is combined with a TV broadcast signal or a radio broadcast signal.

The broadcast-related information may refer to a broadcast channel, a broadcast program, or information related to a broadcast service provider. The broadcast related information may also be provided through a mobile communication network. In this case, it may be received by the mobile communication module 112.

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

For example, the broadcast receiving module 111 may be a Digital Multimedia Broadcasting-Terrestrial (DMB-T), a Digital Multimedia Broadcasting-Satellite (DMB-S), a Media Forward Link Only And a Digital Broadcasting System (ISDB-T) (Integrated Services Digital Broadcast-Terrestrial). Of course, the broadcast receiving module 111 may be adapted to other broadcasting systems as well as the digital broadcasting system described above.

The broadcast signal and / or broadcast related information received through the broadcast receiving module 111 may be stored in the memory 160.

The mobile communication module 112 transmits and receives radio signals to at least one of a base station, an external terminal, and a server on a mobile communication network. The wireless signal may include various types of data depending on a voice call signal, a video call signal or a text / multimedia message transmission / reception.

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

The short range communication module 114 refers to a module for short range communication. Bluetooth, Radio Frequency Identification (RFID), infrared data association (IrDA), Ultra Wideband (UWB), ZigBee, and the like can be used as a short range communication technology.

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

Referring to FIG. 1, an A / V (Audio / Video) input unit 120 is for inputting an audio signal or a video signal, and may include a camera 121 and a microphone 122. The camera 121 processes 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 can be displayed on the display unit 151. [

The image frame processed by the camera 121 may be stored in the memory 160 or transmitted to the outside through the wireless communication unit 110. [ Two or more cameras 121 may be provided depending on the use environment.

The microphone 122 receives an external sound signal through a microphone in a communication mode, a recording mode, a voice recognition mode, or the like, and processes it as electrical voice data. The processed voice data can be converted into a form that can be transmitted to the mobile communication base station through the mobile communication module 112 when the voice data is in the call mode, and output. Various noise reduction algorithms may be implemented in the microphone 122 to remove noise generated in receiving an external sound signal.

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

The sensing unit 140 senses the current state of the mobile terminal 100 such as the open / close state of the mobile terminal 100, the position of the mobile terminal 100, the presence or absence of user contact, the orientation of the mobile terminal, And generates a sensing signal for controlling the operation of the mobile terminal 100. For example, when the mobile terminal 100 is in the form of a slide phone, it may sense whether the slide phone is opened or closed. In addition, whether the power supply unit 190 is supplied with power, whether the interface unit 170 is coupled to the external device may be sensed. Meanwhile, the sensing unit 140 may include a proximity sensor 141.

Further, the sensing unit 140 generates a sensing signal by measuring the ambient noise (for example, 20db) of the mobile terminal 100 or generates a sensing signal by measuring the ambient brightness of the mobile terminal 100 as an illuminance sensor. You can also

The output unit 150 is for generating an output relating to visual, auditory or tactile sense and includes a display unit 151, an acoustic output module 152, an alarm unit 153, a haptic module 154, 155, and the like.

The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, when the mobile terminal is in the call mode, a UI (User Interface) or a GUI (Graphic User Interface) associated with a call is displayed. When the mobile terminal 100 is in the video communication mode or the photographing mode, the photographed and / or received video or UI and GUI are displayed.

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

Some of these displays may be transparent or light transmissive so that they can be seen through. This can be referred to as a transparent display, and a typical example of the transparent display is TOLED (Transparent OLED) and the like. The rear structure of the display unit 151 may also be of a light transmission type. With this structure, the user can see an object located behind the terminal body through the area occupied by the display unit 151 of the terminal body.

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

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

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

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

The proximity sensor 141 may be disposed in an inner region of the mobile terminal or in the vicinity of the touch screen, which is enclosed by the touch screen. The proximity sensor refers to a sensor that detects the presence or absence of an object approaching a predetermined detection surface or a nearby object without mechanical contact using the force of an electromagnetic field or infrared rays. The proximity sensor has a longer life span than the contact sensor and its utilization is also high.

Examples of the proximity sensor include a transmission 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. And to detect the proximity of the pointer by the change of the electric field along the proximity of the pointer when the touch screen is electrostatic. In this case, the touch screen (touch sensor) may be classified as a proximity sensor.

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

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

The sound output module 152 may output audio data received from the wireless communication unit 110 or stored in the memory 160 in a call signal reception, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, and the like. The sound output module 152 also outputs sound signals related to functions (e.g., call signal reception sound, message reception sound, etc.) performed in the mobile terminal 100. [ The audio output module 152 may include a receiver, a speaker, a buzzer, and the like.

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

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

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

The haptic module 154 can be implemented not only to transmit the tactile effect through the direct contact but also to allow the user to feel the tactile effect through the muscular sensation of the finger or arm. The haptic module 154 may include two or more haptic modules 154 according to the configuration of the portable terminal 100.

The projector module 155 is a component for performing an image project function using the mobile terminal 100 and is similar to the image displayed on the display unit 151 in accordance with a control signal of the controller 180 Or at least partly display another image on an external screen or wall.

Specifically, the projector module 155 includes a light source (not shown) that generates light (for example, laser light) for outputting an image to the outside, a light source And a lens (not shown) for enlarging and outputting the image at a predetermined focal distance to the outside. Further, the projector module 155 may include a device (not shown) capable of mechanically moving the lens or the entire module to adjust the image projection direction.

The projector module 155 can be divided into a CRT (Cathode Ray Tube) module, an LCD (Liquid Crystal Display) module and a DLP (Digital Light Processing) module according to the type of the display means. In particular, the DLP module may be advantageous for miniaturization of the projector module 151 by enlarging and projecting an image generated by reflecting light generated from a light source on a DMD (Digital Micromirror Device) chip.

Preferably, the projector module 155 may be provided longitudinally on the side, front or back side of the mobile terminal 100. It goes without saying that the projector module 155 may be provided at any position of the mobile terminal 100 as occasion demands.

Next, the holography module 156 may include a holographic storage medium and a holographic output module, and project the holographic image to the outside.

Holographic storage medium is a storage medium for recording the interference pattern generated by the interference of the irradiated object wave and the reference wave is composed of a material that reacts according to the intensity of light, such as a photopolymer.

At this time, according to the control of the controller 180, the holographic output module irradiates a reproduction wave identical to the reference wave to the holographic storage medium, and the generated reproduction wave is generated by causing an interference fringe and a diffraction phenomenon recorded on the holographic storage medium. The holographic image can be output.

A detailed projection method of the holographic image will be described later with reference to FIGS. 4 to 7.

In addition, in the above description, the holographic storage medium and the holographic output module are included in the holography module 156 to be implemented together, but this is merely a mere example and may be included in the mobile terminal 100 in a separate configuration.

The memory unit 160 may store a program for processing and controlling the control unit 180 and temporarily store the input / output data (e.g., telephone directory, message, audio, For example. The memory unit 160 may also store the frequency of use of each of the data (for example, each telephone number, each message, and frequency of use for each multimedia). In addition, the memory unit 160 may store data on vibration and sound of various patterns output when the touch is input on the touch screen.

Furthermore, in order to support holographic image projection of the holography module 156, information about the holographic interference fringe may be stored. That is, the user's voice, the execution result of the application, and the like can be output to the outside through the holography module 156 through the information stored in the memory unit 160.

The memory 160 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory), a RAM (Random Access Memory), SRAM (Static Random Access Memory), ROM (Read Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM A disk, and / or an optical disk. The mobile terminal 100 may operate in association with a web storage that performs a storage function of the memory 160 on the Internet.

The interface unit 170 serves as a path for communication with all external devices connected to the mobile terminal 100. The interface unit 170 receives data from an external device or supplies power to each component in the mobile terminal 100 or transmits data to the external device. For example, a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, a port for connecting a device having an identification module, an audio I / O port, A video input / output (I / O) port, an earphone port, and the like may be included in the interface unit 170.

The identification module is a chip for storing various information for authenticating the use right of the mobile terminal 100 and includes a user identification module (UIM), a subscriber identity module (SIM), a general user authentication module A Universal Subscriber Identity Module (USIM), and the like. Devices with identification modules (hereinafter referred to as "identification devices") can be manufactured in a smart card format. Accordingly, the identification device can be connected to the terminal 100 through the port.

The interface unit may be a passage through which power from the cradle is supplied to the mobile terminal 100 when the mobile terminal 100 is connected to an external cradle, or various command signals input from the cradle by a user may be transferred. It may be a passage that is delivered to the terminal. The various command signals or the power source input from the cradle may be operated as a signal for recognizing that the mobile terminal is correctly mounted on the cradle.

The controller 180 typically controls the overall operation of the mobile terminal. For example, voice communication, data communication, video communication, and the like. The control unit 180 may include a multimedia module 181 for multimedia playback. The multimedia module 181 may be implemented in the control unit 180 or may be implemented separately from the control unit 180. [

The controller 180 may perform a pattern recognition process for recognizing handwriting input or drawing input performed on the touch screen as characters and images, respectively.

The power supply unit 190 receives 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 various embodiments described herein may be embodied in a recording medium readable by a computer or similar device using, for example, software, hardware, or a combination thereof.

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

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

Organization description

FIG. 2 is a perspective view of a mobile terminal or a portable terminal according to the present invention, as viewed from the front.

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

The body includes a case (a casing, a housing, a cover, and the like) which forms an appearance. In this embodiment, the case may be divided into a front case 101 and a rear case 102. [ A variety of electronic components are embedded in the space formed between the front case 101 and the rear case 102. At least one intermediate case may be additionally disposed between the front case 101 and the rear case 102. [

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

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

The display unit 151 occupies most of the main surface of the front case 101. A sound output unit 151 and a camera 121 are disposed in an area adjacent to one end of both ends of the display unit 151 and a user input unit 131 and a microphone 122 are disposed in an area adjacent to the other end. The user input unit 132 and the interface 170 may be disposed on the side surfaces of the front case 101 and the rear case 102. [

The user input unit 130 is operated to receive a command for controlling the operation of the portable terminal 100 and may include a plurality of operation units 131 and 132. The operation units 131 and 132 may be collectively referred to as a manipulating portion and may be employed in any manner as long as the user operates in a tactile manner.

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

Front touch

Hereinafter, the operation of the display unit 151 and the touch pad 135 will be described with reference to FIG. 3.

3 is a front view of a portable terminal for explaining an operation state of the portable terminal according to the present invention.

Various types of time information can be displayed on the display unit 151. [ These pieces of information can be displayed in the form of letters, numbers, symbols, graphics, or icons.

At least one of the letters, numbers, symbols, graphics, or icons may be displayed in a predetermined arrangement for inputting such information, thereby being implemented as a keypad. Such a keypad may be referred to as a so-called " virtual keypad ".

3 illustrates inputting of a touch applied to the virtual keypad through the front surface of the terminal body.

The display unit 151 may operate as an entire area or may be divided into a plurality of areas and operated. In the latter case, the plurality of areas can be configured to operate in association with each other.

For example, an output window 151a and an input window 151b are displayed on the upper and lower portions of the display unit 151, respectively. The output window 151a and the input window 151b are areas allocated for outputting or inputting information, respectively. In the input window 151b, a virtual keypad 151c is displayed in which a number for inputting a telephone number or the like is displayed. When the virtual keypad 151c is touched, numbers and the like corresponding to the touched virtual keypad are displayed on the output window 151a. When the first operation unit 131 is operated, call connection to the telephone number displayed on the output window 151a is attempted.

The display unit 151 or the touch pad 135 may be configured to receive a touch input by scrolling, as well as the input method described in the above embodiments. The user can move a cursor or a pointer located on an object displayed on the display unit 151, for example, an icon or the like, by scrolling the display unit 151 or the touch pad 135. [ Further, when the finger is moved on the display portion 151 or the touch pad 135, the path along which the finger moves may be visually displayed on the display portion 151. [ This will be useful for editing the image displayed on the display unit 151. [

One function of the terminal may be executed in response to a case where the display unit 151 (touch screen) and the touch pad 135 are touched together within a predetermined time range. In the case of being touched together, there may be a case where the user clamps the terminal body using the thumb and index finger. The one function may be activation or deactivation of the display unit 151 or the touch pad 135, for example.

Hereinafter, a holographic image representation method and a structure therefor for a mobile terminal that can be applied in embodiments of the present invention will be described.

Prior to the description of the holographic image, a form of the mobile terminal including the holography module 156 will be described with reference to FIG. 4.

The holography module 156 may be disposed and mounted on the front or rear side of the mobile terminal.

4 is a diagram illustrating a mobile terminal including a holography module according to an embodiment of the present invention.

First, referring to FIG. 4A, the holography module 156 is illustrated in front of a mobile terminal. In this case, the holography module 156 may be provided on the front surface of the mobile terminal together with the camera 121 and may project and display the holographic image 411 generated under the control of the controller 180.

In addition, as illustrated in FIG. 4B, the holography module 156 may be included in a partial region of the rear surface of the mobile terminal, may be included together with the camera 121, and a holographic image generated under the control of the controller 180. Project and display (412).

The hologram image that may be implemented through the holography module 156 may include both a planar image and a stereoscopic image.

In this case, the stereoscopic image implemented through the holography module 156 may be largely divided into a 2D stereoscopic image and a 3D stereoscopic image.

The 2D stereoscopic image method is a monoscopic method of providing the same image in both eyes, and arranges a polyhedron generated through one or more points, lines, faces, or a combination thereof in a virtual stereoscopic space under the control of the controller 180. In this way, the image viewed from a specific viewpoint is displayed.

Next, the 3D stereoscopic image method is a method of providing different images to both eyes (stereo scopic), a method using a principle that the human body feels a three-dimensional feeling when viewing the object. 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 transmitted 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 a method of displaying an image using the binocular disparity.

The hologram image generated by the holography module 156 to be described later may include both the above-described planar image and stereoscopic image, but for convenience of description, the holographic image hereinafter is assumed to be displayed in a 2D stereoscopic image. However, the content of the present invention is not limited thereto.

Hereinafter, a hologram image representation method and a structure therefor of a mobile terminal that can be applied in embodiments of the present invention will be described in detail.

While the conventional image only records the distribution of the bright and dark sides of the object, the holographic image expression method can be understood as an image display method that simultaneously accumulates and reproduces all information, namely, amplitude and phase, of a light wave.

A holographic image representation method will be described with reference to FIG. 5.

5 is a conceptual diagram for explaining the holographic principle.

First, referring to FIG. 5A, the coherent light from the laser light source 501 is divided into two through a splitter 502.

If one of the beams is made to shine on the subject 507, the light may be reflected on the surface of the subject. Hereinafter, the beam is referred to as an object wave.

In addition, the other light ray can be diffused through the lens to directly illuminate the entire holographic photosensitive material 505, which is hereinafter referred to as a reference wave.

The object wave and the reference wave interfere with each other on the holographic photosensitive material 505 to produce about 500 to 1,500 very delicate and complicated patterns. At this time, the photo recording such interference pattern is called hologram.

Subsequently, when a light beam such as a reference wave generated as shown in FIG. 5B is projected onto the photosensitive material 505, the interference pattern serves as a rotating grating, and the light is diffracted at a position different from the direction in which the reference wave is incident. The light is formed like light generated by reflecting from the first object, thereby projecting the hologram image 509. That is, the first object light can be reproduced in the hologram, and the image representation method through the hologram is called a hologram image representation method.

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

According to the reproduction method, a holographic image representation method may be classified into a transmissive holographic image representation method and a reflective holographic image display method.

(1) transmission hologram image representation

This is a way to see the image transmitted through the light behind the hologram in front of the hologram. In the transmission holographic image representation method, the object wave and the reference wave are exposed to the photographic film in the same direction during production, and the generated holographic image is characterized by vivid and bright colors.

(2) reflective hologram image display system

It is manufactured so that the direction of the object wave and the reference wave are incident on the photosensitive material in opposite directions so 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.

The transmissive holographic image representation method and the reflective polygraphy image display method will be described in detail with reference to FIGS. 6 and 7.

6 is a conceptual diagram for describing a transmissive holography method.

Referring to FIG. 6A, light emitted from the laser light source 601 passes through a spatial filter 602 and then spreads into a smooth spherical wave. One of the spherical waves divided into two rays in a 50:50 splitter (605) is illuminated on the object 608 to produce an object wave, and the other is illuminated on the film 607 to create a reference wave. The object wave film 607 illuminated by the object 608 is illuminated.

At this time, the object wave and the reference wave illuminated on the film cause interference with each other to create an interference fringe, and the interference fringe is recorded on the film 607.

That is, as illustrated in FIG. 6B, the object wave and the reference wave are projected together on the same surface of the film 607 to generate an interference fringe.

Subsequently, as shown in FIG. 6C, when the reference wave is projected onto the film 607, 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, FIG. 7 is a conceptual diagram illustrating a reflective holography method.

Referring to FIG. 7A, light emitted from the laser light source 701 passes through a spatial filter 702 and then spreads out as a smooth spherical wave as shown in FIG. 6A, and then passes through two 50:50 splitters 705. It is divided into light rays, one of which is illuminated by the object 708 to produce an object wave, and the other of which is illuminated by the film 707 as it is to create a reference wave.

However, unlike FIG. 6A, the reference wave and the object wave are illuminated by the film 707 at positions opposite to each other.

That is, as shown in FIG. 7B, the reference wave is projected onto the left side of the film 707, and the object wave is projected through the upper right side of the film 707. Then, as shown in Figure 7c, when the reference wave is projected on the film, the object wave is transmitted in the opposite direction to generate a holographic image.

The films 607 and 707 described above are represented by the holographic storage medium in this specification, and other components capable of generating a holographic image by emitting light to the film are represented by the holographic output module.

As described above, for convenience of description, in the present specification, the holographic storage medium and the holographic output module will be described as being implemented together with the holography module 156. 100).

In addition, for convenience of description, it is assumed that the mobile terminal mentioned below includes at least one of the components shown in FIG. 1, and the display unit 151 is a touch screen.

Usually, a graphic in the form of an arrow or a finger for pointing a specific object or selecting a menu on the display unit 151 is called a pointer or a cursor.

However, in the case of a pointer, it often means a finger or a stylus pen for a touch operation or the like.

Therefore, in the present specification, the graphic displayed on the display unit 151 is referred to as a cursor to clearly distinguish the two, and a physical means capable of performing touch, proximity touch, and gesture such as a finger or a stylus pen is referred to as a pointer. It is called.

In addition, as described above, the hologram image may include both a planar image and a stereoscopic image, but for convenience of description, the holographic image will be described below on the assumption that it is displayed in a 2D stereoscopic image.

Meanwhile, in relation to an embodiment of the present invention, the hologram image may be displayed according to the set holography pattern.

The holographic pattern means that the holographic image projected through the holography module 156 is changed to a preset pattern over 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 holographic output module and the holographic image over time.

That is, since the distance difference between the holography module 156 and the holographic image changes over time, the holographic image projected through the holography module 156 can be moved up and down, and thus 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 holography module 156 over time.

For example, the controller 180 may control the holographic image projected by the holography module 156 to have a circular shape at first, and then change the rectangular shape as time passes. As a result, the holographic image is changed into various shapes according to time, so that a holographic pattern can be set.

In addition, a method of moving or rotating the holographic image projected through the holography module 156 to the left or right may be applied.

That is, the holographic pattern can be set by rotating the projected holographic image by moving left and right, rotating or moving left and right according to time while maintaining the same distance difference between the holographic module 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 individual elements, but the holographic pattern may be set by a plurality of elements.

For example, the holographic pattern may be set to rotate and rotate the projected holographic image from side to side while changing the distance difference between the holographic module 156 and the holographic image over time.

In addition, in the above description, it is assumed that the holographic pattern is set for the entire holographic image.

8 is a conceptual diagram illustrating an optical module and a film unit disposed in a mobile terminal in accordance with an embodiment of the present invention.

The mobile terminal is a bar type, a watch type that is formed to be worn like a watch, a clip type in which one body is coupled to another body like a clip, a folder type and a flip type in which one body is hinged to another body, One body may be a slide type or the like that slides relative to another body.

In addition, the mobile terminal may be formed as a swivel type, a swing type, or an eyeglass type that is wearable like a goggle.

As shown in FIG. 8A, the film unit 1110, the light source 1121, and the irradiation unit 1122 may be disposed in the terminal body 1100.

The film unit 1110 may include an interference fringe so as to implement a holographic image.

The film part 1110 may be formed to be replaceable through slits that penetrate the inside and the outside of the body. For example, the film part 1110 may be formed to be slidably movable and detachably coupled to the body. As such, by replacing the film unit 1110, more various holographic images may be realized.

In addition, the film portion 1110 may be formed to be flexible or at least partially fixed to the substrate. The film portion 1110 fixed on the substrate may reduce distortion of the image.

The touch panel may be formed to cover the film portion 1110. The touch panel may be formed to include a transparent conductive pattern to sense a user's touch.

The light source 1121 may be any one of a lamp, a laser, or an LED, or may be formed by combining two or more thereof. The light source 1121 is only an example, and the light source 1121 may be formed to include other units emitting light.

The irradiator 1122 may be formed such that light emitted from the light source 1121 may be irradiated at a predetermined angle toward one surface of the film portion 1110. The irradiator 1122 may include one or more optical mirrors.

The following embodiments take an optical mirror as an example, but a prism having at least two optical planes may be used instead of the optical mirror.

The mirror may be formed in a planar shape or include a part which is concave or convex. When at least a portion of the mirror is concave or convex, the rectangular film portion 1110 may be more effectively illuminated. In addition, the mirror may be formed including a diffractive optical element such as a holographic optical element (HOE) or a diffractive optical component (DOE).

The irradiation part 1122 and the light source 1121 may be integrally formed as one optical module 1120. At this time, the distance between the irradiator 1122 and the light source 1121 may be adjusted, and the irradiator 1122 and the light source 1121 are formed to be angle-adjustable, respectively, to more effectively control the light directed toward the film part 1110. Can be.

Unlike FIG. 8A, in FIG. 8B, a display is formed to cover at least a portion of the film part 1210.

In this case, the display may be another light source 1221 that emits light toward the film portion 1210.

When the display is opaque, for example, the display may include a light emitting device such as AMOLED (Active Matrix Organic Light Emitting Diodes). It may include.

When formed opaque, it may be coated with an optical member to spray or reflect light toward the film portion 1210 on one surface of the display.

When the display is formed to be transparent, a reflective part is formed on the other surface of the display to reflect the incident light.

FIG. 9 is a view illustrating an example of a film part formed to be angle-adjustable in relation to an embodiment of the present invention.

The film portion 1310 is formed to be relatively movable with respect to the irradiation portion 1322 in the main body. Different hologram images may be formed according to angles of light irradiated onto one surface of the film part 1310.

To this end, the hologram pattern formed on the film portion 1310 may be formed to output the first hologram image at the first irradiation angle, and may be formed to output the second hologram image at the second irradiation angle. That is, the film unit 1310 may include a plurality of hologram patterns to output different hologram images according to angles.

The angle of the irradiation unit 1322 and the angle of the film unit 1310 may be adjusted to adjust the irradiation angle.

In order to adjust the angle of the film portion 1310, a hinge is formed at one end of the film portion 1310, and is formed to be rotatable about the hinge, or a shaft is connected to any part of the film portion 1310, and the axis is centered. It can be formed to be rotatable.

In order to adjust the angle of the irradiator 1322, a hinge is formed at one end of the irradiator 1322, and the hinge is formed to be rotatable about the hinge, or an axis is connected to a portion of the irradiator 1322, and the axis is centered. It can be formed to be rotatable.

In addition, the irradiation part 1322 may be rotatably formed as a whole, as shown in FIG. 9A, or a part of the irradiation unit 1322 may be rotatably formed as shown in FIG. 9B.

FIG. 10 illustrates an optical module 1520 rotatably formed with respect to a body in accordance with an embodiment of the present invention.

As illustrated, the optical module 1520 may be rotatably coupled to one end of the terminal body 1500.

The terminal body 1500 and the optical module 1520 may be hinged.

Fig. 10A shows the state before the rotation, and Fig. 10B shows the state after the rotation. In the state where the optical module 1520 is rotated, light may be irradiated to one surface of the main body to form a hologram image. The film part 1510 is formed on one surface of the main body.

In this case, the film unit 1510 may include a plurality of hologram patterns to output different hologram images according to angles.

The rotation angle of the optical module 1520 facing the film portion 1510 may be formed to be adjustable, and the film portion 1510 may be formed to be angle adjustable.

In this case, the degree of rotation of the optical module 1520 may be adjusted to form different hologram images according to the angle of rotation of the optical module 1520. In addition, at least one hologram image may be formed as a space on one surface of the main body.

11 is a conceptual diagram illustrating an example of arrangement of an optical module 2120 and a film unit 2110 in a slide type terminal in accordance with an embodiment of the present invention.

The second body 2200 having the display and the first body 2100 having a keypad formed on one surface thereof are formed to realize a closed state and an open state. As shown, any one body may be formed to be slideable relative to the other body.

The film unit 2110 may be formed to receive light from the optical module 2120 and the optical module 2120 in a predetermined region of the first body 2100 except for the region where the keypad is disposed.

The first body 2100 may include a receiving unit to insert the optical module 2120. The optical module 2120 may be formed to enter or exit the accommodating portion, and may be formed to protrude by a predetermined height onto one surface of the first body 2100 in an open state. The optical module 2120 may be formed to slide along the inner circumferential surface of the accommodation portion.

Protruding heights of the optical module 2120 may be formed differently, and the optical module 2120 may be fixed to a predetermined height. Depending on the height of the optical module 2120, the angle at which the irradiation part 2122 irradiates the film part 2110 may be different. In this case, the film unit 2110 may include a plurality of hologram patterns to output different hologram images according to angles.

The height of the optical module 2120 may be adjusted to form different holographic images. In addition, at least one hologram image may be formed as a space on one surface of the terminal.

When the first body 2100 and the second body 2200 are formed to be movable in a first direction, which is an extension direction of the terminal, the optical module 2120 is in a second direction, that is, in a thickness direction that replaces the first direction. It may be formed to be movable.

FIG. 12 is a conceptual diagram illustrating a change of a portion to which light is irradiated according to a slide movement according to an embodiment of the present invention.

The first body 3100 and the second body 3200 are formed to implement a closed state and an open state. As shown, the second body 3200 may be formed to be accommodated in a groove formed in the first body 3100. In this case, the second body 3200 may be formed to be slidably movable with respect to the first body 3100.

The film part 3110 may be formed on one surface of the first body 3100. In addition, the second body 3200 may include a receiving unit to insert the optical module 3120. The optical module 3120 may be formed to enter or exit the accommodating part, and may be formed to protrude by a predetermined height onto one surface of the second body 3200 in an open state.

Protruding heights of the optical module 3120 may be formed differently, and the optical module 3120 may be fixed to a certain height. Depending on the height of the optical module 3120, the angle at which the irradiator 3122 irradiates the film 3110 may vary. In this case, the film unit 3110 may include a plurality of hologram patterns to output different hologram images according to angles.

In addition, since the film unit 3110 is formed on the first body 3100, and the optical module 3120 is formed on the second body 3200, the distance between the first body 3100 and the second body 3200 depends on the distance between the first body 3100 and the second body 3200. The angle of the light irradiated onto the film part 3110 may vary. In addition, the first body 3100 and the second body 3200 may be fixed at a distance separated by a predetermined distance.

Accordingly, the film unit 3110 may include a plurality of hologram patterns to output different hologram images according to distances between the first body 3100 and the second body 3200.

The size of the first body 3100 and the second body 3200 may be different even if the same hologram image is spaced apart from each other.

FIG. 13 is a conceptual diagram illustrating an example of a mobile terminal formed to implement a closed state and an open state in accordance with an embodiment of the present invention.

The first body 4100 and the second body 4200 are formed to implement a closed state and an open state. As shown in FIG. 13A, the first body 4100 and the second body 4200 may be formed to swivel. That is, the first body 4100 may slide along one axis of the second body 4200 along the axis formed on the second body 4200. In this case, the first body 4100 and the second body 4200 may be coupled to each other by a hinge module.

In addition, as shown in FIG. 13B, the first body 5100 and the second body 5200 may be formed such that one body is slidably movable relative to the other body. In this case, the first body 5100 and the second body 5200 may be coupled to each other by a slide module.

The first body 5100 may include a display, and a film portion 5110 may be formed in a predetermined region of the second body 5200. The optical module 5120 is disposed in close proximity to irradiate the film part 5110. The optical module 5120 may be formed to enter or exit the accommodation portion of the second body 5200.

The optical module 5120 may be formed to protrude by a predetermined height onto one surface of the second body 5200 in an open state.

Protruding heights of the optical module 5120 may be different from each other, and may be formed so that the optical module 5120 is fixed in a state of protruding by a predetermined height. Depending on the height of the optical module 5120, the angle at which the irradiation unit 5122 irradiates the film unit 5110 may be different. In this case, the film part 5110 may include a plurality of hologram patterns to output different hologram images according to angles.

14 to 16 are conceptual views illustrating an example of a mobile terminal formed to reduce or eliminate interference between a body and a film part.

As shown in FIG. 14, the first body 6100 and the second body 6200 are formed to implement a closed state and an open state. The second body 6200 may be formed to be accommodated in a groove formed in the first body 6100. In this case, the second body 6200 may be formed to be slidably movable with respect to the first body 6100.

A display is formed on one surface of the first body 6100. The second body 6200 includes a hologram module for forming a hologram image. The hologram module may include a film unit, and may include an irradiation unit and a light source.

The hologram image irradiated from the second body 6200 may be partially blocked by the first body 6100 and may be interfered with. In order to prevent such interference, the first body 6100 or the second body 6200 may be formed to be tiltable. In addition, the film portion 6110 may be tilted to prevent such interference.

As shown in FIG. 15, the hologram module may be hinged to the terminal body so as not to be interfered with by the terminal body. The hologram module may include a film unit, and may include an irradiation unit and a light source.

The hologram module may be coupled to the terminal body by a hinge module.

As illustrated in FIG. 16, the first body 8100 and the second body 8200 may be formed to implement a closed state and an open state. The first body 8100 and the second body 8200 may be formed such that one body is slidably movable with respect to the other body. In this case, the first body 8100 and the second body 8200 may be coupled to each other by a slide module.

The first body 8100 includes a hologram module for forming a hologram image. The hologram module may include a film unit, and may include an irradiation unit and a light source.

In FIG. 16A, the holographic image is projected onto one surface of the first body 8100, and the holographic light projected by the second body 8200 may be obscured.

In this case, as shown in FIG. 16B, the second body 8201 may be formed to be tiltable. As a result, interference of the second body 8201 with respect to the hologram light formed from the first body 8101 can be eliminated or reduced.

In addition, as illustrated in FIG. 16C, the shape of a portion of the second body 8202 may be changed to reduce interference of the second body 8202. This may eliminate or reduce interference of the second body 8102 with the hologram light formed from the first body 8102.

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

Claims (20)

A terminal body;
A film unit mounted to the main body and forming a hologram image when light is radiated;
An irradiation unit formed to emit the light in the film unit; And
It includes a light source for supplying light to the irradiation unit,
The irradiation unit,
A mobile terminal, characterized in that it is formed to be relatively movable with respect to the film portion so as to adjust the emission of light on one surface of the film portion. The method of claim 1,
The irradiator and the light source are integrally formed with an optical module,
The optical module is a mobile terminal, characterized in that the slide is formed to be movable relative to the main body so as to adjust the emission of light to one surface of the film portion. The method of claim 2,
The optical module,
And a main body extending in a first direction so as to be slidably movable in a second direction crossing the first direction. The method of claim 2,
The light emission of the light source and the irradiation unit for the film portion is controlled according to the slide movement distance to adjust the size of the hologram image. The method of claim 1,
The irradiator and the light source are integrally formed with an optical module,
And the optical module is hinged to be rotatable with respect to the main body. The method of claim 1,
And a display disposed on the rear surface of the film portion and configured to transmit light through the film portion. The method according to claim 6,
And the display is a transparent display. A first body and a second body coupled to be movable relative to each other to implement a closed state and an open state;
A film unit mounted to the second body and forming a hologram image when light is radiated; And
An optical module including a light source and an irradiation unit to emit the light to the film unit,
The optical module,
In the open state, it is formed so as to protrude from the second body, it characterized in that the mobile terminal is formed so as to move relative to the film portion to control the emission of light to one surface of the film portion. 9. The method of claim 8,
The optical module,
And a second body extending in a first direction so as to be movable in a second direction crossing the first direction. 10. The method of claim 9,
The light emission of the light source and the irradiation unit with respect to the film unit is controlled according to the movement distance of the optical module to adjust the size of the hologram image. 10. The method of claim 9,
The light emission of the light source and the irradiation unit for the film unit is controlled according to the moving distance of the optical module to form a different hologram image. 9. The method of claim 8,
The second body has a receiving portion into which the optical module is inserted,
And the optical module protrudes from or is inserted into the housing according to the relative movement of the first body and the second body. 9. The method of claim 8,
The first body has a display,
And the hologram image is displayed on one surface of the second body in the open state. 9. The method of claim 8,
The relative movement is a mobile terminal, characterized in that the first body and the second body is coupled to each other by a slide module, so that any one body slides relative to the other body. 9. The method of claim 8,
The relative movement is a mobile terminal, characterized in that the first body and the second body are coupled to each other by a hinge module, so that one body rotates relative to the other body. A first body and a second body coupled to be movable relative to each other to implement a closed state and an open state; And
A hologram module mounted on the second body, the film unit forming a hologram image when the light is radiated, the hologram module including a light source and an irradiation unit to emit the light on the film unit,
In order to prevent the hologram image from being interfered by the first body in the open state, the mobile terminal is formed so that the light emitted from the film portion is not covered by the first body. 17. The method of claim 16,
And the first body is formed to be tiltable. 17. The method of claim 16,
The film unit is characterized in that the mobile terminal is formed to be tiltable. A terminal body;
A film unit mounted to the main body and forming a hologram image when light is radiated;
An irradiation unit formed to emit the light in the film unit; And
It includes a light source for supplying light to the irradiation unit,
And the film unit is formed to be movable to adjust the holographic image projected onto any one surface of the main body. 20. The method of claim 19,
The radiation unit is movable to correspond to the movement of the film unit, characterized in that formed.

Images