KR20100061960A - Mobile terminal and method for controlling the same - Google Patents

Abstract

PURPOSE: A mobile terminal and a control method thereof are provided to control the terminal directly by using an image projected from an external device with a user. CONSTITUTION: A projector module(155) indicates the first display(20) in an external screen(10). A camera(121) takes a photograph of the screen. When image data satisfying a pre-defined format is recorded in a specific data area of the screen through the camera, a controller recognizes information of the image data by using the recorded image. A predetermined function being corresponded to the recognized information is performed through control of the controller.

Description

Mobile terminal and control method thereof {MOBILE TERMINAL AND METHOD FOR CONTROLLING THE SAME}

The present invention relates to a mobile terminal, and more particularly, to a method for inputting a predetermined command to a mobile terminal and a mobile terminal capable of implementing the same.

Terminal can move It may be divided into a mobile terminal (mobile / portable terminal) and a stationary terminal depending on whether or not. The mobile terminal may be further classified into a handheld terminal and a vehicle mount terminal according to whether a user can directly carry it.

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

In order to support and increase the function of such a terminal, it may be considered to improve the structural part and / or the software part of the terminal. Accordingly, the terminal is equipped with an increasingly complex user input unit capable of performing all the various functions.

The present invention is to provide a mobile terminal and a command input method thereof that can more conveniently input user commands in operating various functions of the mobile terminal.

According to one aspect of the present invention, there is provided a portable terminal including: a projector module for displaying a first display on an external screen; A camera for photographing the screen; And when a data image satisfying a predefined format is captured by the camera in a specific data area of the screen, recognize the information of the data image by using the image photographed by the camera, and recognize the information on the recognized information. And a controller configured to control a corresponding function to be performed.

In addition, the portable terminal according to an embodiment of the present invention for realizing the above object, the projector module for projecting the first display on the outer surface; A camera for photographing positions of the first cursor and the second cursor projected from the external device on the first display; And a controller configured to recognize a position of a first cursor using an image captured by the camera, and to control a predetermined function when the first cursor changes from an icon on a first display to a second cursor. .

Since the mobile terminal according to at least one embodiment of the present invention configured as described above does not require direct contact in controlling it, there is no fear that the image projected through the projector may be shaken, and the external terminal may project a predetermined image. Anyone with a device can conveniently control the terminal.

Hereinafter, a mobile terminal according to the present invention will be described in more detail with reference to the accompanying drawings. 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.

The mobile terminal described herein may include a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), navigation, and the like. However, it will be readily apparent to those skilled in the art that the configuration according to the embodiments described herein may also be applied to fixed terminals such as digital TVs, desktop computers, etc., except when applicable only to mobile terminals.

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

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

Hereinafter, the components will be described in order.

The wireless communication unit 110 may include one or more modules that enable wireless communication between the mobile terminal 100 and the wireless communication system or between the mobile terminal 100 and a network in which the mobile terminal 100 is located. For example, the wireless communication unit 110 may include a broadcast receiving module 111, a mobile communication module 112, a wireless Internet module 113, a short range communication module 114, 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 mean a server that generates and transmits a broadcast signal and / or broadcast related information or a server that receives a previously generated broadcast signal and / or broadcast related information and transmits the same to a terminal. The broadcast signal may include not only a TV broadcast signal, a radio broadcast signal, and a data broadcast signal, but also a broadcast signal having a data broadcast signal combined with a TV broadcast signal or a radio broadcast signal.

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

The broadcast 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).

The broadcast receiving module 111 may include, for example, Digital Multimedia Broadcasting-Terrestrial (DMB-T), Digital Multimedia Broadcasting-Satellite (DMB-S), Media Forward Link Only (MediaFLO), and Digital Video Broadcast (DVB-H). Digital broadcast signals can be received using digital broadcasting systems such as Handheld and Integrated Services Digital Broadcast-Terrestrial (ISDB-T). Of course, the broadcast receiving module 111 may be configured to be suitable for not only the above-described digital broadcasting system but also other broadcasting systems.

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 a wireless signal with 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 according to transmission and reception of a voice call signal, a video call call signal, or a text / multimedia message.

The wireless internet module 113 refers to a module for wireless internet access and may be embedded or external to the mobile terminal 100. Wireless Internet technologies 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. As a short range communication technology, Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, and the like may be used.

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

Referring to FIG. 1, the A / V input unit 120 is for inputting an audio signal or a video signal, and may include a camera 121 and a microphone 122. The camera 121 processes image frames such as still images or moving images obtained by the image sensor in the video call mode or the photographing mode. The processed image frame may be displayed on the display unit 151.

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

The microphone 122 receives an external sound signal by a microphone in a call mode, a recording mode, a voice recognition mode, etc., and processes the external sound signal into electrical voice data. The processed voice data may be converted into a form transmittable to the mobile communication base station through the mobile communication module 112 and output in the call mode. The microphone 122 may implement various noise removing algorithms for removing noise generated in the process of receiving an external sound signal.

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

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

The output unit 150 is used to generate an output related to visual, auditory or tactile senses, which includes a display unit 151, an audio output module 152, an alarm unit 153, a haptic module 154, and a projector module ( 155) may be included.

The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, when the mobile terminal is in a call mode, the mobile terminal displays a user interface (UI) or a graphic user interface (GUI) related to the call. When the mobile terminal 100 is in a video call mode or a photographing mode, the mobile terminal 100 displays photographed and / or received images, a UI, and a GUI.

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 can be configured to be transparent or light transmissive so that they can be seen from the outside. This may be referred to as a transparent display. A representative example of the transparent display is TOLED (Transparant OLED). The rear structure of the display unit 151 may also be configured as a light transmissive structure. With this structure, the user can see the object located behind the terminal body through the area occupied by the display unit 151 of the terminal body.

There may be two or more display units 151 according to the implementation form of the mobile terminal 100. For example, 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, for example, a form of a touch film, a touch sheet, a touch pad, or the like.

The touch sensor may be configured to convert a change in pressure applied to a specific portion of the display unit 151 or capacitance generated in a specific portion of the display unit 151 into an electrical input signal. The touch sensor may be configured to detect not only the position and area of the touch but also the pressure at the 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 then transmits the corresponding data to the controller 180. As a result, the controller 180 can know which area of the display unit 151 is touched.

The proximity sensor 141 may be disposed in an inner region of the mobile terminal covered by the touch screen or near the touch screen. The proximity sensor refers to a sensor that detects the presence or absence of an object approaching a predetermined detection surface or an object present in the vicinity without using a mechanical contact by using an electromagnetic force or infrared rays. Proximity sensors have a longer life and higher utilization than touch sensors.

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. When the touch screen is capacitive, the touch screen is configured to detect the proximity of the pointer by the change of the electric field according to the proximity of the pointer. 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 at which the proximity touch is performed by the pointer on the touch screen means a position where the pointer vertically corresponds to the touch screen when the pointer is in proximity proximity.

The proximity sensor detects 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). Information corresponding to the sensed proximity touch operation and 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 may also output a sound signal related to a function (eg, a call signal reception sound, a message reception sound, etc.) performed in the mobile terminal 100. The sound output module 152 may include a receiver, a speaker, a buzzer, and the like.

The alarm unit 153 outputs a signal for notifying occurrence of an event of the mobile terminal 100. Examples of events occurring in the mobile terminal include call signal reception, message reception, key signal input, and touch input. The alarm unit 153 may output a signal for notifying occurrence of an event in a form other than a video signal or an audio signal, for example, vibration. The video signal or the audio signal may be output through the display unit 151 or the audio output module 152, so that they 151 and 152 may be classified as 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 may be 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 the jetting or suction port, grazing to the skin surface, contact of the 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 may not only deliver the haptic effect through direct contact, but also may implement the user to feel the haptic effect through a muscle sense such as a finger or an arm. Two or more haptic modules 154 may be provided according to a configuration aspect of the mobile 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.

The memory unit 160 may store a program for processing and controlling the controller 180, and temporarily stores input / output data (for example, a phone book, a message, an audio, a still image, a video, etc.). It can also perform a function for. The memory unit 160 may 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 regarding vibration and sound of various patterns output when a touch input on the touch screen is performed.

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), RAM (Random Access Memory, RAM), Static Random Access Memory (SRAM), Read-Only Memory (ROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Programmable Read-Only Memory (PROM), Magnetic Memory, Magnetic It may include a storage medium of at least one type of disk, optical disk. The mobile terminal 100 may operate in connection with a web storage that performs a storage function of the memory 160 on the Internet.

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

The identification module is a chip that stores various types of information for authenticating the usage rights of the mobile terminal 100, and includes a user identification module (UIM), a subscriber identify module (SIM), and a universal user authentication module ( Universal Subscriber Identity Module (USIM), and the like. Devices with identification modules (hereinafter referred to as "identification devices") can be manufactured in a smart card format. Therefore, the identification device may be connected to the terminal 100 through a port.

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

The controller 180 typically controls the overall operation of the mobile terminal. For example, perform related control and processing for voice calls, data communications, video calls, and the like. The controller 180 may include a multimedia module 181 for playing multimedia. The multimedia module 181 may be implemented in the controller 180 or may be implemented separately from the controller 180.

The controller 180 may perform a pattern recognition process for recognizing a writing input or a drawing input performed on the touch screen as text and an image, respectively.

The power supply unit 190 receives an external power source and an internal power source under the control of the controller 180 to supply power for operation of each component.

Various embodiments described herein may be implemented in a recording medium readable by a computer or similar device using, for example, software, hardware or a combination thereof.

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 functions and operations described herein. Software code may be implemented in software applications written in a suitable programming language. The software code may be stored in the memory 160 and executed by the controller 180.

2A is a front perspective view of an example of a mobile terminal or a portable terminal according to the present invention.

The disclosed portable terminal 100 has a terminal body in the form of a bar. However, the present invention is not limited thereto and may be applied to various structures such as a slide type, a folder type, a swing type, a swivel type, and two or more bodies are coupled to be relatively movable.

The body includes a casing (casing, housing, cover, etc.) that forms an exterior. In this embodiment, the case may be divided into a front case 101 and a rear case 102. Various electronic components are built in the space formed between the front case 101 and the rear case 102. At least one intermediate case may be further 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 audio output unit 152, the camera 121, the user input units 130/131 and 132, the microphone 122, and the interface 170 may be disposed in the terminal body, mainly the front case 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 side surfaces of the front case 101 and the rear case 102.

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

Content input by the first or second manipulation units 131 and 132 may be variously set. For example, the first manipulation unit 131 receives a command such as start, end, scroll, and the like, and the second manipulation unit 132 adjusts the volume of the sound output from the sound output unit 152 or displays 151. Command), such as switching to the touch recognition mode.

FIG. 2B is a rear perspective view of the portable terminal shown in FIG. 2A.

Referring to FIG. 2B, a camera 121 ′ may be additionally mounted on the rear of the terminal body, that is, the rear case 102. The camera 121 ′ has a photographing direction substantially opposite to that of the camera 121 (see FIG. 2A), and may be a camera having different pixels from the camera 121.

For example, the camera 121 has a low pixel so that the user's face is photographed and transmitted to the counterpart in case of a video call, and the camera 121 'photographs a general subject and does not transmit it immediately. It is desirable to have a high pixel because there are many. The cameras 121 and 121 'may be installed on the terminal body to be rotatable or pop-up.

A flash 123 and a mirror 124 are further disposed adjacent to the camera 121 '. The flash 123 shines light toward the subject when the subject is photographed by the camera 121 '. The mirror 124 allows the user to see his / her own face or the like when photographing (self-photographing) the user using the camera 121 '.

The sound output unit 152 'may be further disposed on the rear surface of the terminal body. The sound output unit 152 ′ may implement a stereo function together with the sound output unit 152 (see FIG. 2A), and may be used to implement a speakerphone mode during a call.

In addition to the antenna for a call or the like, a broadcast signal reception antenna 124 may be additionally disposed on the side of the terminal body. An antenna 124 forming part of the broadcast receiving module 111 (see FIG. 1) may be installed to be pulled out of the terminal body.

A power supply unit 190 for supplying power to the portable terminal 100 is mounted on the terminal body. The power supply unit 190 may be embedded in the terminal body or may be directly detachable from the outside of the terminal body.

The rear case 102 may be further equipped with a touch pad 135 for sensing a touch. Like the display unit 151, the touch pad 135 may also be configured to have a light transmission type. In this case, if the display unit 151 is configured to output visual information from both sides, the visual information may be recognized through the touch pad 135. The information output on both surfaces may be controlled by the touch pad 135. Alternatively, a display may be additionally mounted on the touch pad 135, and a touch screen may also be disposed on the rear case 102.

The touch pad 135 operates in association with the display unit 151 of the front case 101. The touch pad 135 may be disposed in parallel to the rear of the display unit 151. The touch pad 135 may have the same or smaller size as the display unit 151.

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

3A and 3B are front views 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 information may be displayed in the form of letters, numbers, symbols, graphics, or icons.

In order to input such information, at least one of the letters, numbers, symbols, graphics, or icons may be displayed in a predetermined arrangement so as to be implemented in the form of a keypad. Such a keypad may be called a so-called " soft key ".

3A illustrates receiving a touch applied to a softkey through the front of the terminal body.

The display unit 151 may operate in an entire area or may be operated in a divided manner. 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 soft key 151c displaying a number for inputting a telephone number or the like is output. When the softkey 151c is touched, a number or the like corresponding to the touched softkey is displayed on the output window 151a. When the first manipulation unit 131 is operated, a call connection to the telephone number displayed on the output window 151a is attempted.

3B illustrates receiving a touch applied to a softkey through the rear of the terminal body. If FIG. 3A is a portrait in which the terminal body is arranged vertically, FIG. 3B illustrates a landscape in which the terminal body is arranged horizontally. The display unit 151 may be configured to convert the output screen according to the arrangement direction of the terminal body.

3B shows that the text input mode is activated in the mobile terminal. The display unit 151 displays an output window 151a 'and an input window 151b'. A plurality of soft keys 151c 'displaying at least one of letters, symbols, and numbers may be arranged in the input window 151b'. The softkeys 151c 'may be arranged in the form of a QWERTY key.

When the soft keys 151c 'are touched through the touch pad 135 (refer to FIG. 2B), letters, numbers, symbols, etc. corresponding to the touched soft keys are displayed on the output window 151a'. As described above, the touch input through the touch pad 135 has an advantage of preventing the softkey 151c 'from being covered by the finger when touched, as compared with the touch input through the display unit 151. When the display unit 151 and the touch pad 135 are transparent, the fingers located at the rear of the terminal body can be visually checked, and thus more accurate touch input is possible.

In addition to the input methods disclosed in the above embodiments, the display unit 151 or the touch pad 135 may be configured to receive a touch input by scrolling. By scrolling the display unit 151 or the touch pad 135, the user may move an object displayed on the display unit 151, for example, a cursor or a pointer located at an icon. 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 may be useful for editing an 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. When touched together, the user may clamp the terminal body using the thumb and index finger. For example, the function may include activation or deactivation of the display unit 151 or the touch pad 135.

The proximity sensor 141 described with reference to FIG. 1 will be described in more detail with reference to FIG. 4.

4 is a conceptual diagram illustrating a proximity depth of a proximity sensor.

As shown in FIG. 4, when a pointer such as a user's finger or pen approaches the touch screen, the proximity sensor 141 disposed in or near the touch screen detects this and outputs a proximity signal.

The proximity sensor 141 may be configured to output different proximity signals according to a distance between the proximity touched pointer and the touch screen (hereinafter, referred to as “proximity depth”).

In FIG. 4, for example, a cross section of a touch screen on which three proximity sensors capable of sensing three proximity depths is disposed is illustrated. Of course, proximity sensors that detect less than three or more than four proximity depths are also possible.

Specifically, when the pointer is completely in contact with the touch screen (d ₀ ), it is recognized as a touch touch. When the pointer is positioned below the distance d ₁ on the touch screen, the pointer is recognized as a proximity touch of a first proximity depth. When the pointer is spaced apart from the distance d ₁ or more and less than d ₂ on the touch screen, the pointer is recognized as a proximity touch of a second proximity depth. When the pointer is spaced apart from the distance d ₂ or more and less than d ₃ on the touch screen, the pointer is recognized as a proximity touch of a third proximity depth. When the pointer is positioned at a distance of more than d ₃ from the touch screen, the proximity touch is recognized as released.

Accordingly, the controller 180 may recognize the proximity touch as various input signals according to the proximity depth and the proximity position of the pointer, and perform various operation control according to the various input signals.

FIG. 5 is a conceptual diagram illustrating a control method for a touch operation when a pair of display units 156 and 157 overlap.

The terminal disclosed in this drawing is a folder-type terminal in which a folder unit is foldable with respect to a main body. The first display unit 156 mounted on the folder unit may be a light transmissive type or a transparent type such as a TOLED, but the second display unit 157 mounted on the main body may have a form in which light does not penetrate like an LCD. The first and second display units 156 and 157 may be configured as touch screens capable of touch input, respectively.

For example, when a touch (contact touch or proximity touch) with respect to the first display unit or the TOLED 156 is detected, the controller 180 may determine the touch type and the touch time. At least one image of the list of images displayed in the TOLED 156 may be selected or run.

Hereinafter, touch, long touch, long touch & drag (drag) with respect to a method in which information displayed on another display unit or LCD 157 is controlled when a touch is applied to the TOLED 156 exposed to the outside in an overlapped form. The description is based on the input method separated by).

In the overlapped state (mobile terminal is closed), the TOLED 156 is disposed to overlap the lower side of the LCD 157. In this state, when a touch different from a touch for controlling the image displayed on the TOLED 156 is detected, for example, a long touch (for example, a touch lasting more than 2 seconds to 3 seconds), the controller 180 ) Causes at least one image of the image list displayed on the LCD 157 to be selected according to the sensed touch input. The result of the execution of the selected image is displayed in the TOLED 156.

The long touch can also be used to selectively move a desired one of the objects displayed on the LCD 157 (without its execution operation) to the TOLED 156. That is, the user may select one region of the TOLED 156 corresponding to a specific object of the LCD 157. In the long touch, the controller 180 moves the object to the TOLED 156 for display. The object displayed on the TOLED 155 may also be transferred to the LCD 157 according to a predetermined touch input, for example, flicking or swirling, on the TOLED 156. This figure illustrates the case where the number 2 menu displayed on the LCD 156 is moved to the TOLED 156 for display.

If another input, for example, a drag, is additionally detected along with the long touch, the controller 180 is a function related to the image selected by the long touch. Can be displayed on. In this figure, the case where the preview (male photograph) with respect to the 2nd menu (image file) is performed is illustrated.

When the preview screen is output and the drag is made to the TOLED 156 for another image while maintaining the long touch, the controller 180 controls the selection cursor (or selection bar) of the LCD 157. The selected cursor is displayed on the preview screen (woman photo). After that, when the touch (long touch and drag) is finished, the controller 180 displays the first image selected by the long touch.

The touch operation (long touch and drag) is performed when a slide (movement of the proximity touch corresponding to the drag) is detected along with the long proximity touch (the proximity touch lasting at least 2 seconds to 3 seconds) for the TOLED 156. The same applies to.

If a touch operation other than those mentioned above is detected, the controller 180 may operate in the same manner as a general touch control method.

The control method for the touch operation in the overlapped form may be applied to a terminal having a single display. In addition, the present invention can be applied to a terminal different from a folder type having a dual display.

6A and 6B are views referred to for describing a proximity touch recognition region in which a proximity signal is detected and a haptic region in which a haptic effect occurs.

6A shows an object such as an icon or a menu item in a circle for convenience of description. As illustrated in (a) of FIG. 6A, an area where an object is displayed on the display unit 151 may be divided into a first area A in the center and a second area B surrounding the area. The first area A and the second area B may be configured to generate a tactile effect having different intensities or patterns. For example, the first vibration may be output when the second region B is touched, and the second vibration may be output when the first region A is touched.

If it is necessary to simultaneously set the proximity touch recognition area and the haptic area in the area where the object is displayed, the haptic area where the haptic effect occurs and the proximity touch recognition area where the proximity signal is detected Can be set differently. That is, the haptic area may be set narrower than the proximity touch recognition area, or the haptic area may be set wider than the proximity touch recognition area. For example, in (a) of FIG. 6A, an area including the first area A and the second area B may be set as a proximity touch recognition area, and the first area A may be set as a haptic area.

As shown in Fig. 6A (b), the area in which the object is displayed is divided into three areas A, B, and C, or as shown in Fig. 6A (c), N (N> 4). It can also be divided into three areas. Each divided area may be configured to generate a tactile effect having different intensities or patterns. Even when the area in which one object is displayed is divided into three or more areas, the haptic area and the proximity touch recognition area may be set differently according to the use environment.

The display unit 151 may be configured such that the size of the proximity touch recognition area varies depending on the depth of proximity. That is, as shown in (a) of FIG. 6B, the corresponding proximity touch recognition area is gradually reduced to 'C', 'B', and 'A' according to the proximity depth to the display unit 151, Alternatively, the corresponding proximity touch recognition area may be gradually increased according to the depth of proximity to the display unit 151. Even in this case, the haptic region may be set to a constant size regardless of the depth of proximity to the display unit 151 as in the 'H' region illustrated in FIG. 6B.

 In the case of dividing the region where the object is displayed for setting the haptic region or the proximity touch recognition region, in addition to the concentric division as shown in FIG. 6A, the division in the horizontal or vertical direction, the radial division, and a combination thereof Various methods, such as division, can be used.

A configuration in which the above-described projector module is provided in the bar type mobile terminal 100 as described above will be described with reference to FIGS. 7A and 7B. 7A and 7B are perspective views illustrating an example of a mobile terminal related to the present invention.

To the main body 103 of the mobile terminal, the projector body 105 having the projector module 155 may be coupled to be rotatable.

That is, the projector body 105 may be hinged to the main body 103, and the projection angle may be adjusted when the image is projected by using the projector module 155 provided in the projector body 105. In addition, a camera 121 may be disposed on the projector body 105 to capture an image projected by the projector module 155.

FIG. 7A illustrates a state before the projector body 105 rotatably coupled to the main body 103 is rotated, and FIG. 7B illustrates a state after the projector body 105 is rotated.

On the other hand, the pointer generally refers to a means (for example, a stylus pen or a finger) for touching the touch screen, and a specific shape (for example, displayed on a display moving according to an operation of a mouse or a touch pad). For example, an arrow, or an hourglass, may mean a sign.

In the present specification, in order to distinguish the two from each other, a means for touching the touch screen is referred to as a "pointer", and a display of a specific shape moving according to an operation of a mouse, a touch pad, a touch screen, etc. will be referred to as a "cursor". The cursor may also include an indication on the display indicating the location where the user can enter text.

First embodiment

A first embodiment according to the present invention provides a method of recognizing a data image projected from an external device with a camera in a predetermined area on an external screen and controlling the terminal accordingly. This will be described with reference to FIGS. 8 to 12.

First, the basic concept of the first embodiment according to the present invention will be described with reference to FIG. 8. Referring to FIG. 8, the terminal 100 according to the first embodiment of the present invention uses the projector module 155 to refer to a predetermined image 20 (hereinafter referred to as “first display”) with an external screen ( 10) is projecting on. In the data area 340 on the screen 10, the external device 300 projects the data image 350 through a predetermined image projection means. The data area 340 may exist in the first display or outside. In addition, the data area 340 is displayed such that the user first projects the data image 350 or visually distinguishes the controller 180 to provide ease in recognizing the location of the data area 340. It is desirable to be. This is described in more detail below. Next, the camera 121 provided in the terminal 100 captures the data image 350 projected onto the data area 340. The controller 180 of the terminal 100 interprets the image photographed by the camera 121 and accordingly performs a predetermined function.

The foregoing will be described in more detail step by step with reference to the flowchart of FIG. 9. Referring to FIG. 9, the terminal 100 enters a data area recognition mode by a predetermined menu operation, and when the external device 300 projects the data image 350, the camera of the terminal 100 121 captures a data area 340 on the screen 10 [S401]. Next, the data image 350 is extracted from the captured image of the data area 340 [S402]. At this time, the first display does not have to be projected first. This is because the projection of the first display may be started according to the indication information included in the data image 350. However, in order for the controller 180 to recognize the data area 340 in the image captured by the camera 121 and to more easily extract the data image 350 therein, the controller 180 may be suitable for the data area 340. It is preferable that a visually distinguished image is projected onto the first display. In addition, in order to use the suitable image projected on the first display, the data area 340 is preferably located at a predetermined position inside the first display. This will be described with reference to FIG. 10 further.

Referring to FIG. 10A, the data area 340 is positioned at one edge of the first display 20 projected on the screen 10. If the image displayed on the first display is not displayed on the data area 340 or only white is projected, since the image of the first display is not interfered with when the predetermined data image is projected here, the data image is more easily. 350 can be extracted. Next, referring to FIG. 10B, a predetermined figure 21 is projected together on the edge of the first display, and a figure 341 visually distinguished is also projected on the edge of the data area 340. . In this case, the controller 180 recognizes the first display 20 and the data area 340 more easily in consideration of the relative positions of the figures 21 and 341 in the image photographed by the camera 121. The data image 350 may be extracted. Here, the information for the controller 180 to recognize the predetermined figures 21 and 341 may be stored in the memory unit 160 and referred to by the controller 180.

Next, the information contained in the data image 350 extracted by the above method is interpreted by the controller 180 [S403]. The analysis process refers to converting the extracted data image 350 into a digital code that can be recognized by the terminal. Then, a predetermined function is performed based on the interpreted information, that is, corresponding to the indication information of the switched digital code [S406].

Here, the performance of the predetermined function according to the format of the data image 350 and the information included therein will be described in detail with reference to FIG. 11.

When the data image 350 is photographed by the camera 121 of the terminal 100 and recognized by the controller 180, the data image 350 may control the terminal 100 according to the content of the information included therein. Therefore, the data image 350 preferably satisfies a predefined format or protocol so that the terminal 100 can interpret it. The form that can be interpreted by the terminal 100 may have a form including at least one of text, a figure, and a color.

For example, when a dictionary or encyclopedia function is being executed, the text "dog" is transmitted to the data area 340 through the data image 350 as shown in FIG. Assume that it is projected. The terminal 100 recognizes the data image 350 as a digital code corresponding to "dog" through the above-described process, searches for the content corresponding to "dog" in the dictionary or encyclopedia, and then displays the first display. Will be projected to.

As another example, in the form of "dictionary / dog" as shown in (b) of FIG. 11, the text before "/" represents a menu to be performed, and the text after it represents specific contents to be performed in the corresponding menu. It may be implemented by a predetermined command line input function. As described above, when projecting a specific menu and specific contents thereof, the data image 350 may be composed of only text as described above, but a combination of figures or colors may be possible. For example, it is assumed that the yellow background color of the terminal 100 is the execution of the dictionary menu, and the black text is set to indicate the specific execution content. At this time, if the "dog" text in black letters among the yellow background color is projected on the data area 340, the same effect as the projection of the data image of FIG. 11 (b) can be obtained.

As another example, when the multimedia player is running, as shown in FIGS. 11C and 11D, when a figure controlling the playback state is projected onto the data image 350, the terminal 100 reproduces the playback control signal. It can be recognized as and take the corresponding action.

As another example, if a predetermined web browser is running, figures such as (e) and (f) of FIG. 11 may be projected onto the data image 350. In this case, the terminal 100 recognizes this and performs a predetermined page shift function from the page currently being projected to the first display to the previous page (e) or the next page (f). In addition, when the text indicating a specific url is projected onto the data image 350 as illustrated in FIG. 11G, the terminal 100 may recognize the text and access the corresponding url.

As another example, an operation such as selection or use of an item that can be used in a game may be performed by projecting a color code or bar code combining a predetermined figure together with a color as a data image during game play.

Meanwhile, before finishing the data analysis process [S403] and performing the corresponding function [S406], a process of receiving confirmation from the user whether the data image 350 is correctly interpreted may be additionally performed. This will be described with reference to FIG. 12.

Referring to FIG. 12, the terminal 100 projects the screen for selecting whether to perform a function according to the interpreted content to the first display 20 after finishing the data analysis process [S403] [S404]. ]. Of course, whether to perform the function may be displayed on the display unit 151 (second display). The user checks the contents of the analysis and accordingly determines whether to perform the function [S405]. If the user receives the approval, the function according to the interpreted content is performed [S406]. If the user does not receive the approval, the function is performed again from the step [S401] of photographing the data area.

Second embodiment

A second embodiment of the present invention provides a method of recognizing a predetermined cursor projected from an external device on a display projected on a screen through a projector module with a camera, and controlling the terminal accordingly. This will be described with reference to FIGS. 13 to 17.

First, the basic concept of the second embodiment according to the present invention will be described with reference to FIG. 13. Referring to FIG. 13, the terminal 100 according to the second embodiment of the present invention projects the first display 20 on the external screen 10 through the projector module 155. A predetermined icon 40 may be displayed on the first display. On the first display 20, the external device 200 projects the first cursor 220 through a predetermined image projecting means 255. In this case, when the terminal 100 recognizes that the first cursor 220 is changed to a second cursor (not shown) on the predetermined icon 40 by using the camera 121, a predetermined function may be performed. Can be.

When the terminal 100 is controlled in the above manner, the external device 200 does not always need to be connected to the terminal through a predetermined communication means. In addition, if the first display 20 can project the first cursor and the second cursor, the terminal 100 can be controlled at any position, which is convenient.

Hereinafter, a method of controlling the terminal according to the second embodiment of the present invention will be described step by step with reference to the flowchart of FIG. 14.

First, the terminal 100 projects the first display 20 on the external screen 10 through the projector module 155 [S501]. Next, when the first cursor 220 is projected on the first display 20 through the image projecting means 255 of the external device 200, the terminal 100 uses the camera 121 to display the first cursor 220. 1 recognizes the position of the cursor 220 [S502]. If the position of the first cursor 220 enters the icon 40 on the first display, a predetermined visual effect may appear on the icon 40 [S503, S504]. Next, when it is recognized that the first cursor 220 is changed to the second cursor [S505], a predetermined event occurs in the icon 40 so that the terminal 100 performs a predetermined function [S506]. ].

Hereinafter, it will be described in more detail with respect to each process described above.

First, the external device 200 will be described.

The external device 200 includes a control unit for controlling a first cursor or a second cursor to be projected through the projector module according to an image projecting means 255, a predetermined user input unit, and a user input through the user input unit. It is desirable to.

Next, recognition [S502] of the first cursor and the second cursor will be described.

In the method of recognizing the positions of the first cursor and the second cursor, the control unit 180 captures an image of the first display on which the first cursor or the second cursor is projected by the camera 121, and the original image. It can be carried out in a way comparing with. In addition, the images of the first display photographed continuously with a predetermined time difference may be compared with each other, and the position of the first cursor may be detected through the difference value.

As another method of recognizing the positions of the cursors, there is a method of further projecting a predetermined reference image on the first display. Referring to FIG. 15, a predetermined figure 21 is projected on four edges of the first display. The figure may have a form easily recognized by the controller 180 in an image photographed using the camera 121, and analysis information for this may be stored in the memory unit 160. In this case, when the first cursor 220 is projected on the first display, the controller 180 recognizes the first cursor 220 and the predetermined figures 21 in the image captured by the camera 121. . Next, by calculating a relative distance between the first cursor 220 and the predetermined figure 21, the controller 180 can recognize the position of the first cursor 220 on the first display.

The above-described methods may be used independently or may be used in combination of at least two methods.

Next, preferred forms of the first cursor and the second cursor suitable for the recognition process [S502] will be described.

In order for the controller 180 of the terminal 100 to more easily recognize the positions of the cursors by using an image of the first display on which the first cursor or the second cursor is projected by the camera 121, Preferably, the first cursor and the second cursor are in a predetermined form between the terminal 100 and the external device 200. In addition, the first cursor and the second cursor preferably have a specific shape or color pattern that is easy for the controller 180 to recognize the position in the image captured by the camera 121 even when overlapping with the first display. . To this end, the memory unit 160 preferably stores analysis information about the shape or color pattern of the first cursor and the second cursor.

In addition, the first cursor and the second cursor may be stored in the memory unit 160, and the first cursor and the second cursor that the terminal 100 can recognize are not embedded in the external device 200. In this case, the information may be shared with the external device 200 through the wireless communication unit 110 or the interface unit 170. In this case, the external device 200 may project the shared cursor, and the terminal 100 may recognize this. In this case, the external device 200 should include a wireless communication unit or interface unit for receiving a cursor and a memory unit for storing a shared cursor.

Subsequently, the process of displaying a predetermined visual effect on the icon 40 (S504) will be described in more detail with reference to FIG.

First, referring to FIG. 16A, the first cursor 220 projected from the external device 200 is displayed on the first display 20. In this case, when the first cursor 220 enters the phone book icon 40 on the first display, the color of the icon 40 may be changed as shown in FIG. As shown in FIG. 16C, a predetermined text 50 indicating that the phone book is selected may be further displayed. In this case, the user may recognize that the terminal 100 recognizes that the first cursor 20 enters the icon 40. If a predetermined web browser is running, the icon 40 may be a web link or an icon with a link to a predetermined web page. The visual effects may be in the form of underlines in the web links.

Next, a state in which a predetermined function is executed [S506] when the first cursor is changed to the second cursor in the icon 40 will be described with reference to FIG. 17.

First, referring to FIG. 17A, the first cursor 220 is positioned within the icon 40 on the first display 20. At this time, when the first cursor 220 is changed to the second cursor, an event preset to the icon 40 occurs. As an example, the sub-menu window 70 of the phone book may be displayed in the OSD (On Screen Display) format as shown in FIG. Here, when the predetermined icon 71 is selected as the second cursor 240 in the lower menu in the lower menu window 70, that is, when the second cursor 240 moves on the icon 71. You will enter the talk time menu. As another example, as shown in (c) of FIG. 17, it is also possible to enter the phone book menu. Selection of the lower menu icon 71 of the phone book is the same as the method described with reference to FIG. In the same manner, even when a predetermined web browser is executed, a web link or an icon accompanying the link may be moved to the linked address if it is selected by the second cursor. Here, whether to display the submenu in OSD form as shown in FIG. 17B or to enter the corresponding menu as shown in FIG. 17C may be determined according to the shape of the second cursor. That is, by differently setting the shape of the second cursor 240 for displaying the OSD type and the second cursor 230 for entering the menu, the user may set a certain type of second cursor through the external device 200. The function to be executed may vary depending on the projection.

Next, with reference to FIG. 18, the position movement operation of the icon utilizing the 1st cursor and the 2nd cursor is demonstrated.

First, referring to FIG. 18A, the first cursor is changed to the second cursor 250 in an icon 40 related to the phone book menu on the first display 20. In this case, the second cursor 250 may be different from the second cursors 230 and 240 described with reference to FIG. 17. This is because the function performed when changing to the second cursor is different from that of FIG. As the second cursor 250 is changed, as shown in FIG. 18B, the icon 40 may have a visual effect such as a color change to indicate that the icon movement function by the second cursor is activated. . In this case, when the second cursor 250 moves upward from the initial position to the right, the icon 40 also moves accordingly. If the user moves the icon 40 to the desired position, the second cursor 250 is changed to the first cursor 220 again, and the icon 40 is fixed in place. Then, even if the first cursor is moved from the icon 40 to another point as shown in FIG. 18C, the icon 40 does not move in a fixed position. Accordingly, the drag and drop operation may be performed through the above-described method, and the object may be applied to any object that is capable of performing the drag and drop operation without being limited to the icon.

In addition, according to an embodiment of the present invention, the above-described method may be implemented as code that can be read by a processor in a medium in which a program is recorded. Examples of processor-readable media include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage, and the like, and may be implemented in the form of a carrier wave (for example, transmission over the Internet). Include.

The above-described mobile terminal is not limited to the configuration and method of the above-described embodiments, but the embodiments may be configured by selectively combining all or some of the embodiments so that various modifications can be made. It may be.

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

Figure 2a is a front perspective view of a mobile terminal according to an embodiment of the present invention.

2b is a rear perspective view of a mobile terminal according to one embodiment of the present invention;

3A and 3B are front views of a mobile terminal for explaining an operation state of a mobile terminal according to the present invention.

4 is a conceptual diagram for explaining a proximity depth of a proximity sensor.

5 is a conceptual diagram illustrating a control method for a touch operation in a form in which a pair of display units overlap.

6A and 6B are conceptual views for explaining a proximity touch recognition region where a proximity signal is detected and a haptic region that generates a tactile effect, respectively.

7A and 7B are perspective views of a mobile terminal according to an embodiment of the present invention.

8 is a conceptual diagram of data image recognition of a mobile terminal according to a first embodiment of the present invention.

9 is a flowchart illustrating a control method of a mobile terminal according to the first embodiment of the present invention.

10 is a state diagram of a first display according to the first embodiment of the present invention.

11 is an exemplary view of a data image according to the first embodiment of the present invention.

12 is a state diagram of a user approval screen according to the first embodiment of the present invention.

13 is a conceptual diagram of cursor recognition of a mobile terminal according to a second embodiment of the present invention;

14 is a flowchart illustrating a method for controlling a mobile terminal according to a second embodiment of the present invention.

Fig. 15 is a state diagram of the first display according to the second embodiment of the present invention.

16 is a state diagram showing visual effects of an icon in a mobile terminal according to a second embodiment of the present invention;

17 is a state diagram in which a function related to an icon is performed in a mobile terminal according to a second embodiment of the present invention;

18 is a state diagram in which an icon is moved in a mobile terminal according to a second embodiment of the present invention;

Claims (23)

A projector module for displaying a first display on an external screen; A camera for photographing the screen; And In a specific data area of the screen, when a data image that satisfies a predefined format is captured by the camera, the information of the data image is recognized using the photographed image, and the predetermined image corresponds to the recognized information. A control unit for controlling to perform the function of the mobile terminal. The method of claim 1, wherein the data image, A mobile terminal characterized in that projected through the image projection means of the external device. The method of claim 1, wherein the data area, The mobile terminal is located in a predetermined area inside the first display. The method of claim 3, wherein the control unit, And a predetermined image suitable for the data area is projected onto the first display. The method of claim 4, wherein the predetermined image suitable for the data area is And nothing is projected onto the data area, or white light is projected. The method of claim 4, wherein the predetermined image suitable for the data area is And a predetermined figure representing the first display edge and the data area. The method of claim 2, wherein the data image, A mobile terminal comprising at least one of text, shapes, and colors. The method of claim 7, wherein Further comprising a wireless communication unit for connecting to the Internet, The control unit, And when the predetermined data image includes text indicating a URL, controlling the web page of the URL to be displayed on the first display. The method of claim 7, wherein Further comprising a memory for storing the contents of the dictionary or encyclopedia, The control unit, When the data image includes a text indicating a word of a predetermined language, searching the dictionary or encyclopedia of the memory unit and controlling the content corresponding to the word to be displayed on the first display. Mobile terminal characterized in that. The method of claim 1, Further comprising a display for displaying a second display, The control unit, Outputting a message confirming whether to perform a predetermined function corresponding to the recognized information to at least one of the first display and the second display, and controlling the predetermined function to be performed when a user confirms. Mobile terminal. Photographing a data image projected at a specific position of an external surface with a camera; Extracting the data image from the captured image; Interpreting the information of the extracted data image; And And performing a predetermined function according to the interpreted information. The method of claim 11, And displaying the interpreted information on at least one of the first display and the second display and receiving confirmation from the user. A projector module for projecting the first display to an external surface; A camera for photographing positions of the first cursor and the second cursor projected from the external device on the first display; And A control unit for recognizing the position of the first cursor using the image photographed through the camera and controlling a predetermined function to be performed when the first cursor is changed from the icon on the first display to the second cursor; terminal. The method of claim 13, wherein the first display, Contains a reference image, The control unit, And a position of a first cursor and a second cursor by using a relative distance from the reference image. The method of claim 13, The mobile terminal further comprises a memory unit for storing the first cursor and the second cursor. The method of claim 15, wherein the memory unit, And a predetermined cursor interpretation information suitable for the controller to recognize the first cursor and the second cursor stored in the image captured by the camera. The method of claim 15, Further comprising at least one of a wireless communication module and an interface unit, The controller may control the first cursor and the second cursor to be shared with the external device through at least one of the wireless communication module and the interface unit. The method of claim 13, wherein the external device, Image projection means; A user input unit; And And a controller configured to control a first cursor or a second cursor to be projected through the projector module according to a user's input through the user input unit. The method of claim 13, wherein the control unit, And when the first cursor points to an icon on the first display, controlling the icon to give a predetermined visual effect. The method of claim 13, wherein the predetermined function, The mobile terminal characterized in that enters a menu associated with the icon or displays a submenu of the related menu. The method of claim 13, wherein the control unit, And when the second cursor moves to another point on the display, the icon moves to the point where the second cursor moves. The method of claim 21, wherein the control unit, And when the second cursor is changed from the moved point to the first cursor, controlling the icon to be fixed to the moved point. Projecting the first display to an external surface through the projector module; Recognizing, by the camera, the position of the first cursor projected through the external device on the first display; And And performing a predetermined function when the location-recognized first cursor changes from an icon on a first display to a second cursor.

Images