KR101612864B1 - Mobile terminal and method for controlling the same - Google Patents

Abstract

Field of the Invention [0002] The present invention relates to a mobile terminal and a control method thereof that can distinguish specified areas according to the user's gaze. A mobile terminal according to an exemplary embodiment of the present invention includes a display unit for outputting screen information, a sensing unit for sensing a user's gaze on the display unit, A memory for storing the specified area if the sight line is detected to be out of the display unit by the sensing unit, and a memory for storing the specified area when the sight of the user to the display unit is detected again by the sensing unit, And a controller for changing the screen information so that the specified area and the remaining area are distinguished from each other.

Description

[0001] MOBILE TERMINAL AND METHOD FOR CONTROLLING THE SAME [0002]

The present invention relates to a mobile terminal capable of detecting a user's gaze and a control method thereof.

A terminal can be divided into a mobile terminal (mobile / portable terminal) and a stationary terminal according to whether the terminal can be moved. The mobile terminal can be divided into a handheld terminal and a vehicle mounted terminal according to whether the user can directly carry the mobile terminal.

The functions of mobile terminals are diversified. For example, there are data and voice communication, photographing and video shooting through a camera, voice recording, music file playback through a speaker system, and outputting an image or video on a display unit. Some terminals are equipped with an electronic game play function or a multimedia player function. In particular, modern mobile terminals can receive multicast signals that provide visual content such as broadcast and video or television programs.

Such a terminal has various functions, for example, in the form of a multimedia device having multiple functions such as photographing and photographing of a moving picture, reproduction of a music or video file, reception of a game and broadcasting, etc. .

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. In addition, such a terminal can acquire user information through a user's gaze or face recognition, and can utilize the user information to execute various functions.

On the other hand, screen information including a plurality of information may be output to the display unit of the terminal. At this time, when the user confirms a part of the information on the screen information, and then moves the line of sight and then views the screen information again, the user is inconvenient to distinguish between the information confirmed by the user and the information not confirmed.

Accordingly, the present invention relates to a mobile terminal capable of distinguishing an area where a user's line of sight is reached on a display unit based on user's sight line information, and a control method thereof.

According to another aspect of the present invention, there is provided a mobile terminal including a display unit for outputting screen information, a sensing unit for sensing a user's gaze on the display unit, A memory for storing the specified area when the sensing unit detects that the visual line deviates from the display unit after the area for which the visual line has been reached for a predetermined time or more, The control unit may change the screen information so that the specified area and the remaining area are distinguished from each other on the screen information.

In one embodiment of the present invention, when the sensing unit detects that the user's line of sight with respect to the specified area satisfies a preset condition, the control unit may execute the information using the information included in the specified area The display unit can be controlled so that a graphic object corresponding to the function is output.

In one embodiment of the present invention, when the sensing unit detects that the user's gaze is maintained for a predetermined time in a word or an image included in the specified area, The display unit can be controlled so that the graphic object is output.

As an example related to the present invention, when the specified area is included in a predetermined area on the display part, the control part determines that the user's line of sight is maintained in the specified area for a specific time by the sensing part If it is detected, the information contained in the specified area And control the display unit to output a graphic object for management.

In one embodiment of the present invention, when the graphic object is selected, the display unit may superimpose an execution screen of a function corresponding to the selected graphic object on at least one area of the screen information.

In one embodiment of the present invention, the controller may perform a function corresponding to the graphic object when a predetermined number of eye blinks are detected after the gaze reaches the graphic object by the sensing unit.

In one embodiment of the present invention, the memory stores facial expression data related to facial expressions of a user, and the sensing unit obtains facial expressions of the user, and the control unit determines whether the facial expression of the user is a facial expression The execution of the function can be restricted.

In one embodiment of the present invention, the control unit may output a preview screen of a function corresponding to the graphic object when it is detected by the sensing unit that the gaze is maintained for a predetermined time.

As an example according to the present invention, the preview may be terminated at a predetermined time.

In one embodiment of the present invention, the display unit outputs one of a plurality of pages sequentially dividing time data as the screen information, and when the specified area has a range equal to or larger than a predetermined size, When the time elapses, the display unit may be controlled so that the screen information is changed to the next page among the plurality of pages.

The mobile terminal and the control method thereof according to an embodiment of the present invention can analyze the user's gaze and specify the area where the gaze reaches on the display unit. Further, by displaying the specified area so as to be distinguished from the remaining area, the user can quickly distinguish between the information confirmed by the user and the information not confirmed.

In addition, the mobile terminal and its control method according to an embodiment of the present invention analyze a line of sight detected in a specified area and output a graphic object corresponding to a specific function, The convenience of being able to easily perform the specific function with the included information is provided.

1A is a block diagram illustrating a mobile terminal according to the present invention.
1B and 1C are conceptual diagrams illustrating an example of a mobile terminal according to the present invention in different directions.
FIG. 2A is a flowchart showing a control method related to specifying an area where a user's gaze has reached in accordance with the present invention.
2B is a conceptual diagram for explaining a control method according to the present invention.
FIG. 3 is a diagram showing an embodiment in which specified areas are distinguished. FIG.
FIGS. 4A and 4B are diagrams for graphical object output when a line of sight is maintained in a specific information range of a specified area. FIG.
FIGS. 5A, 5B, and 5C are diagrams showing how different graphic objects are output based on conditions of a specified area. FIG.
FIG. 6 is a diagram illustrating output of a predetermined graphic object according to a predetermined type of line of sight for a specified area.
FIG. 7 is a diagram showing how a function is executed according to selection of a graphic object. FIG.
8A and 8B are diagrams showing the execution of a function corresponding to a graphic object as an eye flicker is detected.
Figure 9 is a diagram illustrating a method for deselecting a graphical object.
10 is a diagram illustrating a preview screen output of a function when a line of sight to a graphic object is maintained.
FIG. 11 is a diagram illustrating a real-time display of a region where a user's line of sight is detected.
FIG. 12 is a diagram showing an automatic page turn when the specified area is over a preset range.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like or similar elements are denoted by the same or similar reference numerals, and a duplicate description thereof will be omitted. 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 following description of the embodiments of the present invention, a detailed description of related arts will be omitted when it is determined that the gist of the embodiments disclosed herein may be blurred. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. , ≪ / RTI > equivalents, and alternatives.

The mobile terminal described in this specification includes a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), a navigation device, a slate PC A tablet PC, an ultrabook, a wearable device such as a smartwatch, a smart glass, and a head mounted display (HMD). have.

However, it will be appreciated by those skilled in the art that the configuration according to the embodiments described herein may be applied to fixed terminals such as a digital TV, a desktop computer, a digital signage, and the like, will be.

1A to 1C are block diagrams for explaining a mobile terminal according to the present invention, and FIGS. 1B and 1C are conceptual diagrams showing an example of a mobile terminal according to the present invention in different directions.

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

The wireless communication unit 110 may be connected between the mobile terminal 100 and the wireless communication system or between the mobile terminal 100 and another mobile terminal 100 or between the mobile terminal 100 and the external server 100. [ Lt; RTI ID = 0.0 > wireless < / RTI > In addition, the wireless communication unit 110 may include one or more modules for connecting the mobile terminal 100 to one or more networks.

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

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

The sensing unit 140 may include at least one sensor for sensing at least one of information in the mobile terminal, surrounding environment information surrounding the mobile terminal, and user information. For example, the sensing unit 140 may include a proximity sensor 141, an illumination sensor 142, a touch sensor, an acceleration sensor, a magnetic sensor, A G-sensor, a gyroscope sensor, a motion sensor, an RGB sensor, an infrared sensor, a finger scan sensor, an ultrasonic sensor, A microphone 226, a battery gauge, an environmental sensor (for example, a barometer, a hygrometer, a thermometer, a radiation detection sensor, A thermal sensor, a gas sensor, etc.), a chemical sensor (e.g., an electronic nose, a healthcare sensor, a biometric sensor, etc.). Meanwhile, the mobile terminal disclosed in the present specification can combine and utilize information sensed by at least two of the sensors.

The output unit 150 includes at least one of a display unit 151, an acoustic output unit 152, a haptic tip module 153, and a light output unit 154 to generate an output related to visual, auditory, can do. The display unit 151 may have a mutual layer structure with the touch sensor or may be integrally formed to realize a touch screen. The touch screen may function as a user input unit 123 that provides an input interface between the mobile terminal 100 and a user and may provide an output interface between the mobile terminal 100 and a user.

The interface unit 160 serves as a path to various types of external devices connected to the mobile terminal 100. The interface unit 160 is connected to a device having a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, And may include at least one of a port, an audio I / O port, a video I / O port, and an earphone port. In the mobile terminal 100, corresponding to the connection of the external device to the interface unit 160, it is possible to perform appropriate control related to the connected external device.

In addition, the memory 170 stores data supporting various functions of the mobile terminal 100. The memory 170 may store a plurality of application programs or applications running on the mobile terminal 100, data for operation of the mobile terminal 100, and commands. At least some of these applications may be downloaded from an external server via wireless communication. Also, at least a part of these application programs may exist on the mobile terminal 100 from the time of shipment for the basic functions (e.g., telephone call receiving function, message receiving function, and calling function) of the mobile terminal 100. Meanwhile, the application program may be stored in the memory 170, installed on the mobile terminal 100, and may be operated by the control unit 180 to perform the operation (or function) of the mobile terminal.

In addition to the operations related to the application program, the control unit 180 typically controls the overall operation of the mobile terminal 100. The control unit 180 may process or process signals, data, information, and the like input or output through the above-mentioned components, or may drive an application program stored in the memory 170 to provide or process appropriate information or functions to the user.

In addition, the controller 180 may control at least some of the components illustrated in FIG. 1A in order to drive an application program stored in the memory 170. FIG. In addition, the controller 180 may operate at least two of the components included in the mobile terminal 100 in combination with each other for driving the application program.

The power supply unit 190 receives external power and internal power under the control of the controller 180 and supplies power to the components included in the mobile terminal 100. The power supply unit 190 includes a battery, which may be an internal battery or a replaceable battery.

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

Hereinafter, the various components of the mobile terminal 100 will be described in detail with reference to FIG. 1A.

First, referring to the wireless communication unit 110, the broadcast receiving module 111 of the wireless communication unit 110 receives broadcast signals and / or broadcast-related information from an external broadcast management server through a broadcast channel. The broadcast channel may include a satellite channel and a terrestrial channel. Two or more broadcast receiving modules may be provided to the mobile terminal 100 for simultaneous broadcast reception or broadcast channel switching for at least two broadcast channels.

The mobile communication module 112 may be a mobile communication module or a mobile communication module such as a mobile communication module or a mobile communication module that uses technology standards or a communication method (e.g., Global System for Mobile communication (GSM), Code Division Multi Access (CDMA), Code Division Multi Access 2000 (Enhanced Voice-Data Optimized or Enhanced Voice-Data Only), Wideband CDMA (WCDMA), High Speed Downlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA), Long Term Evolution (LTE) And an external terminal, or a server on a mobile communication network established according to a long term evolution (e. G., Long Term Evolution-Advanced).

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. The wireless Internet module 113 is configured to transmit and receive a wireless signal in a communication network according to wireless Internet technologies.

Wireless Internet technologies include, for example, wireless LAN (WLAN), wireless fidelity (Wi-Fi), wireless fidelity (Wi-Fi) Direct, DLNA (Digital Living Network Alliance), WiBro Interoperability for Microwave Access, High Speed Downlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA), Long Term Evolution (LTE) and Long Term Evolution-Advanced (LTE-A) 113 transmit and receive data according to at least one wireless Internet technology, including Internet technologies not listed above.

The wireless Internet module 113 for performing a wireless Internet connection through the mobile communication network can be used for wireless Internet access by WiBro, HSDPA, HSUPA, GSM, CDMA, WCDMA, LTE or LTE- May be understood as a kind of the mobile communication module 112.

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

Here, the other mobile terminal 100 may be a wearable device (e.g., a smartwatch, a smart glass, etc.) capable of interchanging data with the mobile terminal 100 according to the present invention (smart glass), HMD (head mounted display)). The short range communication module 114 may detect (or recognize) a wearable device capable of communicating with the mobile terminal 100 around the mobile terminal 100. [ If the detected wearable device is a device authenticated to communicate with the mobile terminal 100 according to the present invention, the control unit 180 may transmit at least a part of the data processed by the mobile terminal 100 to the short- 114 to the wearable device. Therefore, the user of the wearable device can use the data processed by the mobile terminal 100 through the wearable device. For example, according to this, when a telephone is received in the mobile terminal 100, the user performs a telephone conversation via the wearable device, or when a message is received in the mobile terminal 100, It is possible to check the message.

The position information module 115 is a module for obtaining the position (or current position) of the mobile terminal, and a representative example thereof is a Global Positioning System (GPS) module or a Wireless Fidelity (WiFi) module. For example, when the mobile terminal utilizes the GPS module, it can acquire the position of the mobile terminal by using a signal transmitted from the GPS satellite. As another example, when the mobile terminal utilizes the Wi-Fi module, it can acquire the position of the mobile terminal based on information of a wireless access point (AP) that transmits or receives the wireless signal with the Wi-Fi module. Optionally, the location information module 115 may perform any of the other functions of the wireless communication unit 110 to obtain data relating to the location of the mobile terminal, in addition or alternatively. The location information module 115 is a module used to obtain the location (or current location) of the mobile terminal, and is not limited to a module that directly calculates or obtains the location of the mobile terminal.

Next, the input unit 120 is for inputting image information (or signal), audio information (or signal), data, or information input from a user. For inputting image information, Or a plurality of cameras 121 may be provided. The camera 121 processes an image frame such as a still image or moving image obtained by the image sensor in the video communication mode or the photographing mode. The processed image frame may be displayed on the display unit 151 or stored in the memory 170. [ A plurality of cameras 121 provided in the mobile terminal 100 may be arranged to have a matrix structure and various angles or foci may be provided to the mobile terminal 100 through the camera 121 having the matrix structure A plurality of pieces of image information can be input. In addition, the plurality of cameras 121 may be arranged in a stereo structure to acquire a left image and a right image for realizing a stereoscopic image.

The microphone 122 processes the external acoustic signal into electrical voice data. The processed voice data can be utilized variously according to a function (or a running application program) being executed in the mobile terminal 100. Meanwhile, the microphone 122 may be implemented with various noise reduction algorithms for eliminating noise generated in receiving an external sound signal.

The user input unit 123 is for receiving information from a user and when the information is inputted through the user input unit 123, the control unit 180 can control the operation of the mobile terminal 100 to correspond to the input information . The user input unit 123 may include a mechanical input means (or a mechanical key such as a button located on the front, rear or side of the mobile terminal 100, a dome switch, a jog wheel, Jog switches, etc.) and touch-type input means. For example, the touch-type input means may comprise a virtual key, a soft key or a visual key displayed on the touch screen through software processing, And a touch key disposed on the touch panel. Meanwhile, the virtual key or the visual key can be displayed on a touch screen having various forms, for example, a graphic, a text, an icon, a video, As shown in FIG.

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

First, the proximity sensor 141 refers to a sensor that detects the presence of an object approaching a predetermined detection surface, or the presence of an object in the vicinity of the detection surface, without mechanical contact by using electromagnetic force or infrared rays. The proximity sensor 141 may be disposed in the inner area of the mobile terminal or in proximity to the touch screen, which is covered by the touch screen.

Examples of the proximity sensor 141 include a transmission type photoelectric sensor, a direct reflection type photoelectric sensor, a mirror reflection type photoelectric sensor, a high frequency oscillation type proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor. In the case where the touch screen is electrostatic, the proximity sensor 141 can be configured to detect the proximity of the object with a change of the electric field along the proximity of the object having conductivity. In this case, the touch screen (or touch sensor) itself may be classified as a proximity sensor.

On the other hand, for convenience of explanation, the act of recognizing that the object is located on the touch screen in proximity with no object touching the touch screen is referred to as "proximity touch & The act of actually touching an object on the screen is called a "contact touch. &Quot; The position at which the object is closely touched on the touch screen means a position where the object corresponds to the touch screen vertically when the object is touched. The proximity sensor 141 can detect 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, have. Meanwhile, the control unit 180 processes data (or information) corresponding to the proximity touch operation and the proximity touch pattern sensed through the proximity sensor 141 as described above, and further provides visual information corresponding to the processed data It can be output on the touch screen. Furthermore, the control unit 180 can control the mobile terminal 100 such that different operations or data (or information) are processed according to whether the touch to the same point on the touch screen is a proximity touch or a touch touch .

The touch sensor senses a touch (or touch input) applied to the touch screen (or the display unit 151) by using at least one of various touch methods such as a resistance film type, a capacitive type, an infrared type, an ultrasonic type, do.

For example, the touch sensor may be configured to convert a change in a pressure applied to a specific portion of the touch screen or a capacitance generated in a specific portion to an electrical input signal. The touch sensor may be configured to detect a position, an area, a pressure at the time of touch, a capacitance at the time of touch, and the like where a touch object touching the touch screen is touched on the touch sensor. Here, the touch object may be a finger, a touch pen, a stylus pen, a pointer, or the like as an object to which a touch is applied to the touch sensor.

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

On the other hand, the control unit 180 may perform different controls or perform the same control according to the type of the touch object touching the touch screen (or a touch key provided on the touch screen). Whether to perform different controls or to perform the same control according to the type of the touch object may be determined according to the current state of the mobile terminal 100 or an application program being executed.

On the other hand, the touch sensors and the proximity sensors discussed above can be used independently or in combination to provide a short touch (touch), a long touch, a multi touch, a drag touch ), Flick touch, pinch-in touch, pinch-out touch, swipe touch, hovering touch, and the like. Touch can be sensed.

The ultrasonic sensor can recognize the position information of the object to be sensed by using ultrasonic waves. Meanwhile, the controller 180 can calculate the position of the wave generating source through the information sensed by the optical sensor and the plurality of ultrasonic sensors. The position of the wave source can be calculated using the fact that the light is much faster than the ultrasonic wave, that is, the time when the light reaches the optical sensor is much faster than the time the ultrasonic wave reaches the ultrasonic sensor. More specifically, the position of the wave generating source can be calculated using the time difference with the time when the ultrasonic wave reaches the reference signal.

The camera 121 includes at least one of a camera sensor (for example, a CCD, a CMOS, etc.), a photo sensor (or an image sensor), and a laser sensor.

The camera 121 and the laser sensor may be combined with each other to sense a touch of the sensing object with respect to the three-dimensional stereoscopic image. The photosensor can be laminated to the display element, which is adapted to scan the movement of the object to be detected proximate to the touch screen. More specifically, the photosensor mounts photo diodes and TRs (Transistors) in a row / column and scans the contents loaded on the photosensor using an electrical signal that varies according to the amount of light applied to the photo diode. That is, the photo sensor performs coordinate calculation of the object to be sensed according to the amount of change of light, and position information of the object to be sensed can be obtained through the calculation.

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

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

In the stereoscopic display unit, a three-dimensional display system such as a stereoscopic system (glasses system), an autostereoscopic system (no-glasses system), and a projection system (holographic system) can be applied.

The sound output unit 152 may output audio data received from the wireless communication unit 110 or stored in the memory 170 in a call signal reception mode, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, The sound output unit 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 unit 152 may include a receiver, a speaker, a buzzer, and the like.

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

In addition to vibration, the haptic module 153 may be configured to perform various functions such as a pin arrangement vertically moving with respect to the contact skin surface, a spraying force or suction force of the air through the injection port or the suction port, a touch on the skin surface, And various tactile effects such as an effect of reproducing a cold sensation using an endothermic or exothermic element can be generated.

The haptic module 153 can transmit the tactile effect through the direct contact, and the tactile effect can be felt by the user through the muscles of the finger or arm. The haptic module 153 may include two or more haptic modules 153 according to the configuration of the mobile terminal 100.

The light output unit 154 outputs a signal for notifying the occurrence of an event using the light of the light source of the mobile terminal 100. Examples of events that occur in the mobile terminal 100 may include message reception, call signal reception, missed call, alarm, schedule notification, email reception, information reception through an application, and the like.

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

The interface unit 160 serves as a path for communication with all external devices connected to the mobile terminal 100. The interface unit 160 receives data from an external device or supplies power to each component in the mobile terminal 100 or transmits data in the mobile terminal 100 to an external device. For example, a port for connecting a device equipped with a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, an audio I / O port, a video I / O port, an earphone port, and the like may be included in the interface unit 160.

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 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 interface unit 160. [

The interface unit 160 may be a path through which power from the cradle is supplied to the mobile terminal 100 when the mobile terminal 100 is connected to an external cradle, And various command signals may be transmitted to the mobile terminal 100. The various command signals or the power source input from the cradle may be operated as a signal for recognizing that the mobile terminal 100 is correctly mounted on the cradle.

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

The memory 170 may be a flash memory type, a hard disk type, a solid state disk type, an SDD type (Silicon Disk Drive type), a multimedia card micro type ), Card type memory (e.g., SD or XD memory), random access memory (RAM), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read memory, a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, and / or an optical disk. The mobile terminal 100 may operate in association with a web storage that performs the storage function of the memory 170 on the Internet.

Meanwhile, as described above, the control unit 180 controls the operations related to the application program and the general operation of the mobile terminal 100. [ For example, when the state of the mobile terminal meets a set condition, the control unit 180 can execute or release a lock state for restricting input of a user's control command to applications.

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

The power supply unit 190 receives external power and internal power under the control of the controller 180 and supplies power necessary for operation of the respective components. The power supply unit 190 includes a battery, the battery may be an internal battery configured to be chargeable, and may be detachably coupled to the terminal body for charging or the like.

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

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

In the following, various embodiments may be embodied in a recording medium readable by a computer or similar device using, for example, software, hardware, or a combination thereof.

Referring to FIGS. 1B and 1C, the disclosed mobile terminal 100 includes a bar-shaped terminal body. However, the present invention is not limited thereto and can be applied to various structures such as a folder type, a flip type, a slide type, a swing type, and a swivel type in which a watch type, a clip type, a glass type or two or more bodies are relatively movably coupled . A description of a particular type of mobile terminal, although relevant to a particular type of mobile terminal, is generally applicable to other types of mobile terminals.

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

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

A display unit 151 is disposed on a front surface of the terminal body to output information. The window 151a of the display unit 151 may be mounted on the front case 101 to form a front surface of the terminal body together with the front case 101. [

In some cases, electronic components may also be mounted on the rear case 102. Electronic parts that can be mounted on the rear case 102 include detachable batteries, an identification module, a memory card, and the like. In this case, a rear cover 103 for covering the mounted electronic components can be detachably coupled to the rear case 102. Therefore, when the rear cover 103 is separated from the rear case 102, the electronic parts mounted on the rear case 102 are exposed to the outside.

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

These cases 101, 102, and 103 may be formed by injection molding of synthetic resin or may be formed of metal such as stainless steel (STS), aluminum (Al), titanium (Ti), or the like.

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

Meanwhile, the mobile terminal 100 may include a waterproof unit (not shown) for preventing water from penetrating into the terminal body. For example, the waterproof portion is provided between the window 151a and the front case 101, between the front case 101 and the rear case 102, or between the rear case 102 and the rear cover 103, And a waterproof member for sealing the inside space of the oven.

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

1B and 1C, a display unit 151, a first sound output unit 152a, a proximity sensor 141, an illuminance sensor 142, an optical output unit (not shown) A second operation unit 123b, a microphone 122 and an interface unit 160 are disposed on a side surface of the terminal body, And a mobile terminal 100 having a second sound output unit 152b and a second camera 121b disposed on a rear surface thereof.

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

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

The display unit 151 may be a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), a flexible display display, a 3D display, and an e-ink display.

In addition, the display unit 151 may exist in two or more depending on the embodiment of the mobile terminal 100. In this case, the mobile terminal 100 may be provided with a plurality of display portions spaced apart from each other or disposed integrally with one another, or may be disposed on different surfaces, respectively.

The display unit 151 may include a touch sensor that senses a touch with respect to the display unit 151 so that a control command can be received by a touch method. When a touch is made to the display unit 151, the touch sensor senses the touch, and the control unit 180 generates a control command corresponding to the touch based on the touch. The content input by the touch method may be a letter or a number, an instruction in various modes, a menu item which can be designated, and the like.

The touch sensor may be a film having a touch pattern and disposed between the window 151a and a display (not shown) on the rear surface of the window 151a, or may be a metal wire . Alternatively, the touch sensor may be formed integrally with the display. For example, the touch sensor may be disposed on a substrate of the display or inside the display.

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

The first sound output unit 152a may be implemented as a receiver for transmitting a call sound to a user's ear and the second sound output unit 152b may be implemented as a loud speaker for outputting various alarm sounds or multimedia playback sounds. ). ≪ / RTI >

The window 151a of the display unit 151 may be provided with an acoustic hole for emitting the sound generated from the first acoustic output unit 152a. However, the present invention is not limited to this, and the sound may be configured to be emitted along an assembly gap (for example, a gap between the window 151a and the front case 101) between the structures. In this case, the appearance of the mobile terminal 100 can be made more simple because the hole formed independently for the apparent acoustic output is hidden or hidden.

The optical output unit 154 is configured to output light for notifying the occurrence of an event. Examples of the event include a message reception, a call signal reception, a missed call, an alarm, a schedule notification, an email reception, and reception of information through an application. The control unit 180 may control the light output unit 154 to terminate the light output when the event confirmation of the user is detected.

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

The first and second operation units 123a and 123b may be collectively referred to as a manipulating portion as an example of a user input unit 123 operated to receive a command for controlling the operation of the mobile terminal 100 have. The first and second operation units 123a and 123b can be employed in any manner as long as the user is in a tactile manner such as touch, push, scroll, or the like. In addition, the first and second operation units 123a and 123b may be employed in a manner that the user operates the apparatus without touching the user through a proximity touch, a hovering touch, or the like.

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

The contents input by the first and second operation units 123a and 123b can be variously set. For example, the first operation unit 123a receives a command such as a menu, a home key, a cancellation, a search, and the like, and the second operation unit 123b receives a command from the first or second sound output unit 152a or 152b The size of the sound, and the change of the display unit 151 to the touch recognition mode.

On the other hand, a rear input unit (not shown) may be provided on the rear surface of the terminal body as another example of the user input unit 123. The rear input unit is operated to receive a command for controlling the operation of the mobile terminal 100, and input contents may be variously set. For example, commands such as power on / off, start, end, scrolling, and the like, the size adjustment of the sound output from the first and second sound output units 152a and 152b, And the like can be inputted. The rear input unit may be implemented as a touch input, a push input, or a combination thereof.

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

When a rear input unit is provided on the rear surface of the terminal body, a new type of user interface using the rear input unit can be realized. When the first operation unit 123a is not disposed on the front surface of the terminal body in place of at least a part of the functions of the first operation unit 123a provided on the front surface of the terminal body, The display unit 151 may be configured as a larger screen.

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

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

The interface unit 160 is a path through which the mobile terminal 100 can be connected to an external device. For example, the interface unit 160 may include a connection terminal for connection with another device (for example, an earphone or an external speaker), a port for short-range communication (for example, an infrared port (IrDA Port), a Bluetooth port A wireless LAN port, or the like), or a power supply terminal for supplying power to the mobile terminal 100. The interface unit 160 may be implemented as a socket for receiving an external card such as a SIM (Subscriber Identification Module) or a UIM (User Identity Module) or a memory card for storing information.

And a second camera 121b may be disposed on a rear surface of the terminal body. In this case, the second camera 121b has a photographing direction which is substantially opposite to that of the first camera 121a.

The second camera 121b may include a plurality of lenses arranged along at least one line. The plurality of lenses may be arranged in a matrix form. Such a camera can be named an 'array camera'. When the second camera 121b is configured as an array camera, images can be taken in various ways using a plurality of lenses, and a better quality image can be obtained.

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

And a second sound output unit 152b may be additionally disposed in the terminal body. The second sound output unit 152b may implement a stereo function together with the first sound output unit 152a and may be used for implementing a speakerphone mode in a call.

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

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

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

The rear cover 103 is configured to be coupled to the rear case 102 so as to cover the battery 191 to restrict the release of the battery 191 and to protect the battery 191 from external impact and foreign matter . When the battery 191 is detachably attached to the terminal body, the rear cover 103 may be detachably coupled to the rear case 102.

The mobile terminal 100 may be provided with an accessory that protects the appearance or supports or expands the function of the mobile terminal 100. [ One example of such an accessory is a cover or pouch that covers or accommodates at least one side of the mobile terminal 100. [ The cover or pouch may be configured to interlock with the display unit 151 to expand the function of the mobile terminal 100. Another example of an accessory is a touch pen for supplementing or extending a touch input to the touch screen.

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

The mobile terminal according to an exemplary embodiment of the present invention analyzes a user's line of sight detected on the display unit and specifies an area where the user's line of sight is reached on the display unit. In addition, when the user's gaze is detected again on the display unit, the specified area is distinguished from the remaining area, so that the user can easily grasp the information that he / she has confirmed and the information that is not.

The control method for distinguishing the sensed area of the user's eyes according to the present invention will be described in more detail with reference to FIGS. 2A, 2B, and 3. FIG.

FIG. 2A is a flowchart illustrating a control method related to specifying a region where a user's gaze is reached according to the present invention, FIG. 2B is a conceptual diagram for explaining a control method according to the present invention, FIG. In which: Fig.

2A, screen information is displayed on a display unit of a mobile terminal according to the present invention.

Here, the screen information may include information capable of conveying a specific content to a user. For example, the screen information may be screen information including content information such as text, images, and moving pictures. Therefore, as shown in FIG. 2 (b), the display unit 151 may output screen information 10 including text.

When the screen information is output to the display unit 151, the user can be perceived by the sensing unit 151 on the display unit 151 (S220).

The sensing unit may include at least one camera mounted on the body of the mobile terminal. In addition, the at least one camera may photograph the movement of the user's eyes and sense that the user's gaze is directed toward the display unit 151.

At this time, an indicator may be displayed on the display unit 151 to indicate that the user's gaze is approaching. For example, as shown in FIG. 2B (b), an eye image 11 indicating that the user's line of sight is pointing toward the display unit 151 may be output to the indicator on the display unit 151.

When the user's gaze is sensed by the sensing unit, the controller 180 analyzes the gaze and specifies an area where the user's gaze is sensed over a predetermined period of time on the display unit 151 (S230 ).

At least one camera included in the sensing unit may photograph a user's eyes, and the controller 180 may analyze the eyes of the user by analyzing the motion of the user's eyes. More specifically, the controller 180 analyzes the motion of the eyes of the user photographed by the at least one camera. The angle of the user's gaze toward the display unit 151 is determined based on the analysis. In addition, the controller 180 can determine the position of the user's gaze on the display unit 151 using the detected angle.

The at least one camera may be mounted on a front side of the mobile terminal. Also, as the number of cameras increases, the controller 180 can more accurately analyze the motion of the user's eyes. That is, when the number of the cameras increases, the accuracy of the determination of the position at which the user's gaze angle reaches the display unit 151 according to the movement of the eyes may be increased.

Using the above-described eye tracking technique, the control unit 180 can specify an area where the user's gaze reaches on the display unit 151. [ At this time, the control unit 180 can specify the area using a range of information corresponding to a position where the user's gaze is reached over a predetermined time.

Also, in order to specify the area, the range of the reference information for specifying the area may be set in the mobile terminal in advance. Here, the range of the reference information means a range of information that can be determined as the specified area when the sight line is detected as being reached for a preset time.

For example, the range of the reference information may be set to a predetermined range of text information such as a predetermined number of words. In this case, if the user's line of sight is detected in a predetermined number of words for a predetermined time, the preset number of words can be determined as the specified area. As another example, when the range of the reference information is set as one image, if the line of sight is detected in one image included in the screen information for a preset time, the one image may be determined as the specified area have. As described above, the size and position of the region specified by the user's gaze may vary depending on how the range of the reference information is set.

Meanwhile, when the user's line of sight to the display unit 151 is dispersed and detected, the region may be specified as a plurality of separated regions. That is, when the user does not sequentially read the information included in the screen information according to the direction from top to bottom on the display unit 151, the user's line of sight may be detected as being dispersed on the display unit 151 have. For example, when the user's eyes reach the upper side of the display unit 151 by the sensing unit, the middle portion of the display unit 151 is omitted and it can be detected that the user has reached the lower side. At this time, the control unit 180 can specify a plurality of areas separated in the upper and lower portions of the display unit 151 as a region where the user's gaze reaches.

If the user's eyes are detected by the sensing unit to be out of the display unit 151, the specified area may be stored in the memory (S240).

The user can gaze at the display unit 151 and temporarily move his gaze to another place. In this case, the controller 180 stores the area specified by the user's gaze in the memory 170, and when the gaze is again detected by the display unit 151, So that other functions can be executed.

At this time, an indicator for notifying that the sight line is not detected on the display unit 151 by the sensing unit may be output to the display unit 151. FIG. That is, as shown in (c) of FIG. 2, an image 12 indicating that the user's line of sight is not detected may be output to one area of the display unit 151. Accordingly, the user can check whether one information area is specified on the display unit 151 according to his or her gaze through the indicators 11 and 12.

After that, if the user's line of sight to the display unit 151 is detected again by the sensing unit, the specified area and the remaining area may be separately displayed in the screen information of the display unit 151 (S250) .

That is, when the user's eyes on the display unit 151 are detected again, the controller 180 can change the screen information so that the user can distinguish the specified area from the remaining area. For example, as shown in (d) of FIG. 2b, the specified area 20 in the screen information 10 may be underlined to be distinguished from the remaining area.

At this time, there may be a variety of methods for displaying the specified area and the remaining area separately. That is, as shown in FIG. 3A, the specified area 21 is divided into the remaining area and brightness on the screen information 10, and the 'O' mark is superimposed on the specified area. 3 (b), if the specified area is a plurality of sporadic areas 22 and 23, it may be displayed in different colors from the rest area on the screen information 10.

As described above, the mobile terminal according to the present invention can identify an area corresponding to the line of sight (area read by the user) when the user's line of sight is detected on the display unit 151. [ In addition, when the user's gaze is detected to be directed to the display unit 151 after being removed from the display unit 151, the specified region can be displayed to be distinguished from the remaining region.

Accordingly, when the user confirms a part of the information included in the screen information and confirms the information again after shifting the sight line, the user can quickly grasp the information already confirmed. In addition, when most of the screen information includes text information, the user can quickly and easily find the area that he / she has read and the area that is not read even if the user moves the line of sight. Accordingly, the user is provided with the convenience of reading the area immediately after the area he / she has read.

When the area where the user's gaze reaches is specified, the memory 170 can store the specified area. Also, the controller 180 may analyze information included in the specified area. When the eyes are again detected on the display unit 151, the controller 180 may analyze the eyes again. At this time, if the re-sensed line of sight reaches the specified area and it is determined that the line of sight satisfies the preset condition, the controller 180 executes the function using the information included in the specified area It is possible to output a graphic object.

Various types of graphic objects may be output according to the predetermined condition and the size and position of the specified area. Hereinafter, a control method of outputting a graphic object related to information included in the specified area will be described with reference to FIGS. 4A, 4B, 5A, 5B, 5C and 6.

FIGS. 4A and 4B are diagrams showing how a graphic object is output when a line of sight is maintained in a specific information range included in a specified area.

Referring to FIG. 4A, the top area 24 of the screen information 10 is identified as an area reached by the user's eyes and is distinguished from the remaining area. Also, the movement of the eye of the user is detected by the camera 121 mounted on the front side of the mobile terminal.

At this time, the controller 180 may analyze the gaze angle according to the movement of the user's eyes, and determine whether the gaze reaches the specified area and satisfies predetermined conditions. For example, the preset condition may be a condition regarding a position and a time at which the gaze reaches. In this case, the controller 180 may analyze the gaze angle as shown in (a) of FIG. 4A to determine which one word 24a the gaze reaches. Also, the control unit 180 may determine which one of the words 24a is maintained for a predetermined time.

If it is determined that the line of sight within the specified area satisfies the preset condition, the controller 180 may output a graphic object for searching for the word. That is, as shown in FIG. 4A, the controller 180 outputs the search icon 300 and the dictionary icon 301 for searching for one word 24a to one area of the display unit 151 .

However, the range in which the gaze should be maintained as the output condition of the graphic object for retrieval may be variously defined such as an image, a certain word, and the like.

Referring to FIG. 4B, the controller 180 may analyze the line of sight reaching the specified area 24 of the screen information 10. At this time, the line of sight may be maintained in a certain sentence 24b in the specified area 24 for a predetermined time.

If it is detected that the line of sight is maintained for a predetermined time in any one sentence 24b, the control unit 180 can search for the functions that can perform the function using the sentence 24b. 4B, an icon 302 corresponding to the function of adding the sentence 24b to the favorite, an icon 303 for displaying the bookmark in the sentence 24b, The memo icon 304 for storing the memo button 24b may be output to the display unit 151. [

Therefore, the user can perform the function using the range of the specific information by keeping a line of sight on the range of the specific information included in the specified area. In addition, even within the specified area, the user can have an opportunity to perform different functions by changing the range of information that maintains the line of sight (for example, when the line of sight is kept in one word and kept in one sentence) Can be provided.

The graphic object may be output based on the size or position of the specified area. Hereinafter, an exemplary embodiment will be described in which the output of the graphic object is changed based on the condition of the region specified with reference to FIGS. 5A, 5B, and 5C.

FIG. 5A is a diagram showing how the type of graphic object is determined based on the size of the specified area. FIG. That is, as shown in (a) of FIG. 5A, when the area 25 specified in the state in which the screen information 10 is outputted is distinguished and it is detected that the user's line of sight is maintained in the specified area 25 . At this time, the controller 180 may analyze the size of the specified area. That is, the controller 180 can determine whether the size of the specified area occupies more than a predetermined range of the screen information.

If the specified area occupies more than a predetermined area of the screen information, the controller 180 may analyze the information included in the screen information if the sight line is detected to be maintained in the specified line of sight have. Here, if the screen information is information corresponding to one page among a plurality of pages sequentially dividing time data, the controller 180 outputs a graphic object for outputting a previous page or a next page of the screen information .

5A, the controller 180 displays a graphic object 305a for outputting the previous page of the screen information 10 and the screen information 10 to one area of the display unit 151, A graphic object 305b for outputting the next page of the page.

As described above, when the area specified by the user's eyes occupies more than a predetermined range of the screen information, it can be determined that the user has confirmed most of the information included in the screen information. Accordingly, the controller 180 may output a graphic object for outputting information corresponding to the previous or next page of the screen information based on the size of the specified area. Accordingly, the user is provided with an opportunity to confirm new information corresponding to the previous or next screen information without any additional input.

In addition, the controller 180 may output various kinds of graphic objects based on the position of the specified area. At this time, the mobile terminal may divide the display unit 151 into a plurality of regions, and output the different graphic objects based on the positions where the specified regions are included in the plurality of regions.

Referring to FIG. 5 (b), the specified area of the screen information 10 may include one area 26 located at the upper right and one area 27 located at the lower left. In this case, when the specified area is included in the predetermined area on the display unit 151, the control unit 180 displays a specific graphic object (for example, a graphic object corresponding to a function related to managing information) Can be output.

5B, the controller 180 displays the bookmark icon 306, the memo icon 307, and the memo icon 307. When the user selects the bookmark icon 306 and the memo icon 307, And a favorite icon 308 can be output.

In this case, a graphic object (for example, a memo icon 307) corresponding to an executable function using the information included in the upper one area 26 is displayed on the plurality of graphic objects 306, 307, . The bookmark icon 307 and the bookmark icon 308 may be included in the upper one area 26 based on the fact that the specified area 26 is included in the upper part of the display unit 151 An icon corresponding to a function capable of managing information can be output.

5B, when the specified area is divided into a plurality of areas, when the graphic object is outputted in relation to one of the plurality of areas, the controller 180 controls the remaining area 27, May be deleted.

Accordingly, when a region specified in the predetermined area on the display unit 151 is included, the user can select the graphic object corresponding to the desired function (for example, information management function) Output can be provided.

Here, when a graphic object is output based on the position of the specified area, the graphic object may be output when a blink of the user's eyes is detected.

5C, the display unit 151 may be divided into an upper region 151a and a lower region 151b, and the upper region 151a may include the specified region 28. In other words, have. In this case, as shown in FIG. 5A, blinking of eyes may be detected in a state in which the eyes are maintained in the specified region 28 included in the upper region 151a by the sensing unit. In this case, the controller 180 may output graphic objects 309 and 310 that can manage information included in the specified area 28, as shown in (d) of FIG.

5C, if the eye blinking is detected in a state where the eyes are maintained by the sensing unit in an area not including the specified area 28 as in the lower area 151b of the display unit . In this case, the control unit 180 may remove the distinction indication of the area 28 specified in the display unit 151, as shown in (e) of FIG.

In this manner, even when a predetermined type of line of sight (e.g., flicker) of the specified area is detected, a graphic object related to the position of the specified area can be output. In addition, if the predetermined type of line of sight is detected for an area other than the specified area, the control unit 180 deletes the distinguishing indication of the specified area so that the user can easily end the output state of the distinguishing display, Screen information can be provided.

Meanwhile, the mobile terminal can store the type of the graphic object output in accordance with the preset line of sight. This will be described with reference to FIG.

FIG. 6 is a diagram illustrating the output of a predetermined graphic object when a predetermined type of line of sight is detected for the specified area.

As shown in FIG. 6 (a), in a state in which the user's gaze is maintained toward the region 29 specified in the screen information 10, A flicker may be detected. At this time, the controller 180 outputs graphic objects 311, 312, 313, and 314 of a predetermined type on the screen information 10 based on the blinking of eyes, as shown in (c) can do.

As described above, the mobile terminal according to the present invention is capable of outputting a graphic object based on a predetermined line of sight of a user for the specified area. Accordingly, the user can receive various graphic objects by changing the type of the gaze toward the specified area.

The graphic object corresponds to a specific function, and when a graphic object is selected, a function corresponding to the graphic object can be executed. Hereinafter, an embodiment related to function execution corresponding to a graphic object will be described with reference to FIGS. 7, 8A, and 8B.

7 is a diagram illustrating an output state of screen information according to a function execution when a graphic object is selected.

The graphic objects 315 and 316 for searching for a specific word 30a in the specified area 30 may be output to the screen information 10 as shown in FIG. 7 (b), when the touch input is applied to the graphic object 316, the controller 180 may perform a function of searching for the specific word 30a.

In this case, the control unit 180 may output the execution screen 10a on which the search function of the specific word 30a has been executed, to the entire display unit 151, as shown in FIG. 7C. That is, the control unit 180 can change the screen information 10 output to the display unit 151 to the search screen 10a of the specific word 30a. 7 (d), the control unit 180 displays the execution screen 10b related to the search for the specific word 30a in the state in which the screen information 10 is output, ) And output it.

Accordingly, the user can execute a function corresponding to the graphic object by applying an input (for example, a touch input) for selecting the graphic object. In addition, the user is provided with the convenience of simultaneously providing and comparing information included in the screen information and information included in the execution screen of the function corresponding to the graphic object.

In addition, the selection of the graphic object may be performed by detecting a user's predetermined type of gaze in addition to the touch input.

8A and 8B are diagrams illustrating a function corresponding to a graphic object being executed by detecting blinking of eyes.

The graphic objects 317 and 318 corresponding to the functions that can be executed using the information included in the specified area 31 of the screen information 10 are displayed on the display unit 151 as shown in FIG. Can be output. At this time, it can be sensed that the user's eyes are kept on the favorite icon 317 by the sensing unit.

8B, when the blinking of the eye is detected by the sensing unit in a state where the sight line of the favorite icon 317 is maintained, the controller 180 determines whether the blinking of the predetermined area 31 is' It is possible to execute the favorite function using the information included in the bookmark function. At this time, a pop-up window 31a indicating that the favorite function has been executed may be output to one area of the display unit 151, as shown in FIG. 8 (c).

Accordingly, the user can easily perform a function corresponding to the graphic object by performing a predetermined type of gaze, such as blinking, without applying a touch input directly to the graphic object.

In using such blinking, the user can selectively execute a plurality of graphic objects using both eyes. That is, as shown in FIG. 8 (b), the display unit 151 is provided with page turn icons 319 and 320 for outputting screen information 10 and information other than the information included in the screen information 10, .

At this time, the user's left eye may be blinked by the sensing unit as shown in (b) of FIG. 8B. In this case, the controller 180 can recognize the blinking of the left eye as a selection input for the page turn-off icon 319 output at a position corresponding to the left eye among the page turn icons 319 and 320. The control unit 180 may output the screen information 13 corresponding to the previous page of the screen information 10 to the display unit 151 as shown in FIG.

If the detection unit detects that the user's right eye is blinking as shown in FIG. 8B (d), the controller 180 determines that the screen information 10 is a screen information item corresponding to the next page of the screen information The display unit 151 may be controlled so that the display unit 151 is changed to the display unit 14.

Accordingly, the user can conveniently select different graphic objects among the plurality of graphic objects by blinking the left eye and the right eye.

In this manner, when the graphic object is selected using a predetermined type of visual line, the user can cancel the selection in response to the selection error. Here, the above selection can be canceled by the touch input, but it is possible to cancel using the face expression of the user according to the face recognition of the user.

That is, the memory 170 may store facial expression data related to facial expression of the user. At least one camera included in the sensing unit may acquire the facial expression of the user through face recognition of the user. Also, the controller 180 may analyze the sensed facial expression and match the analyzed facial expression with the facial expression data. In this case, if the facial expression is matched with the facial expression data, the controller 180 can cancel the selection of the graphic object. Hereinafter, a description will be made with reference to FIG.

FIG. 9 is a diagram illustrating an embodiment related to a method for canceling the graphic object. FIG.

9A, a file icon 321 for separately storing information included in the specified area 33 of the screen information 10 may be displayed on the display unit 151. In addition, At this time, as shown in FIG. 9 (b), the blinking of the user's eyes may be detected by the sensing unit while the line of sight of the file icon 321 is maintained. 9 (c), the control unit 180 displays a pop-up window 33a related to the function of separately storing the information included in the specified area 33 in the file on the display unit 151 And output it to one area.

9 (d), when the user constructs a specific expression (for example, a frowning expression), when the controller 180 matches the facial expression acquired by the sensing unit with previously stored facial expression data, It can be determined that an input for 'cancel' is applied to the pop-up window 33a as shown in FIG. 9 (d). In addition, it is possible to limit the function of separately storing the information included in the specified area 33 in the file.

Therefore, the control unit 180 may control the display unit 151 to return to the output state before the file icon 321 is selected, as shown in FIG. 9 (e).

Thus, by canceling the selection of the graphic object by matching the facial expression of the user through the face recognition with the previously stored facial expression data, the user can easily cancel the selection of the graphic object due to the error without any additional input.

Meanwhile, the user may check the preview screen of the function corresponding to the graphic object before selecting the graphic object. This will be described with reference to FIG.

FIG. 10 is a view showing an embodiment in which a preview screen of a function corresponding to a graphic object in which a line of sight is maintained can be confirmed.

10 (a), in a state in which the screen information 10 and the icon 322 for searching for the specific word 34a in the specified area 34 are output to the display unit 151, the user may be perceived as being maintained on the icon 322 by the sensing unit as shown in FIG.

In this case, the controller 180 may form a preview screen of the function corresponding to the icon 322 so that the user can be provided with information on the execution screen of the function corresponding to the icon 322. The preview screen 322a may be output to one area of the display unit 151 adjacent to the icon 322. [ In addition, when the predetermined time has elapsed, the controller 180 may terminate the output of the preview screen 322a as shown in FIG. 10 (d).

Therefore, the user can maintain the gaze on the graphic object before executing the function corresponding to the graphic object, thereby providing the information on the execution of the function without executing the function.

Hereinafter, a control method of changing the output state of the screen information in real time according to the eye-gaze analysis will be described with reference to FIG. FIG. 11 is a diagram illustrating real time display of an area where a user's line of sight is detected on the display unit.

Referring to FIG. 11 (a), the screen information 10 includes sequential text information divided into a plurality of columns. In this case, if the user's gaze is sensed by the sensing unit, the controller 180 may analyze the angle of the gaze to determine a position where the user's gaze reaches on the display unit 151. [ In addition, the controller 180 may display the position where the user's gaze reaches in real time differently each time the gaze of the user is changed by a predetermined angle. That is, as shown in FIG. 11 (a), the column 35 in which the line of sight of the current user reaches can be displayed so as to be distinguished from the other columns by underline display.

11 (b), the control unit 180 determines that the column 36 determined according to the current line of sight is different from the other columns, as shown in FIG. 11 (b) Can be displayed. At this time, the indication for the column 35 that was previously displayed differentially may be deleted.

As described above, the mobile terminal according to the present invention can display real time regions in which the line of sight is reached in real time as the line of sight is changed, in addition to specifying the region through the user's line of sight analysis. Accordingly, when the user is provided with the text information including a plurality of columns, the user is provided with the convenience of confirming the column that he / she is currently reading without mistaking it with another column.

In addition, the mobile terminal according to the present invention can be applied to an e-book capable of outputting one page out of a plurality of pages sequentially dividing time data as screen information. At this time, the control unit 180 specifies an area read by the user on the screen information, and when the specified area is greater than or equal to a predetermined range of the screen information, the control unit 180 automatically executes a page turn- have. This will be described with reference to Fig.

FIG. 12 is a diagram illustrating the output of the next page of the screen information when the area specified on the screen information by the user's gaze is greater than or equal to a predetermined range.

Referring to FIG. 12 (a), the display unit 151 may output screen information 10 corresponding to any one of a plurality of pages in which time data is sequentially partitioned. In addition, when the user's eyes are out-focused on the display unit 151, the controller 180 can specify an area where the user's gaze reaches on the screen information 10. [

12 (b), when the line of sight is refocused on the display unit 151, the specified region 37 may be displayed in a distinguishable manner. In this case, when the specified area 37 occupies a predetermined range or more of the screen information 10, the controller 180 can confirm the position of the page corresponding to the screen information among the plurality of pages . The control unit 180 may control the display unit 151 to output the next page 10a of the page corresponding to the screen information, as shown in FIG. 12 (c).

As described above, according to the present invention, when the user reads most of the area of the screen on the screen on which one of the plurality of pages is output, The next page can be output automatically. Accordingly, the user can conveniently receive contents corresponding to the next page without applying any additional input to the already read page.

The mobile terminal and the control method thereof according to an embodiment of the present invention can analyze the user's gaze and specify the area where the gaze reaches on the display unit. Further, by displaying the specified area so as to be distinguished from other areas, the user can quickly distinguish between the information confirmed by the user and the information not confirmed.

In addition, the mobile terminal and the control method thereof according to an embodiment of the present invention can output a graphic object corresponding to a function that can be executed using a specified area, so that the user can additionally execute Information about the function can be provided and utilized.

The present invention described above can be embodied as computer-readable codes on a medium on which a program is recorded. The computer readable medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of the computer readable medium include a hard disk drive (HDD), a solid state disk (SSD), a silicon disk drive (SDD), a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, , And may also be implemented in the form of a carrier wave (e.g., transmission over the Internet). Also, the computer may include a control unit 180 of the terminal. Accordingly, the above description should not be construed in a limiting sense in all respects and should be considered illustrative. The scope of the present invention should be determined by rational interpretation of the appended claims, and all changes within the scope of equivalents of the present invention are included in the scope of the present invention.

Claims (10)

A display unit for outputting screen information;
A sensing unit for sensing a user's gaze on the display unit;
A memory for storing the specified area when the sensing unit detects that the visual line deviates from the display unit after an area in which the visual line has been reached for a predetermined time or longer is specified on the display unit; And
And a controller for changing the screen information so that the specified area and the remaining area are distinguished from each other on the screen information if the user's gaze on the display part is detected again by the sensing part. The apparatus of claim 1,
If it is detected by the sensing unit that the user's line of sight of the specified area satisfies a predetermined condition,
Wherein the control unit controls the display unit to output a graphic object corresponding to an executable function using information included in the specified area. 3. The apparatus of claim 2,
If it is detected by the sensing unit that the user's line of sight is maintained for a predetermined time in a word or an image included in the specified area,
And controls the display unit to output a graphic object for searching the word or image. 3. The method of claim 2,
When the specified area is included in a predetermined area on the display unit,
Wherein,
If it is detected by the sensing unit that the user's gaze is maintained in the specified area for a specific period of time, And controls the display unit to output a graphic object for management. The display device according to claim 2,
And when the graphic object is selected, the execution screen of the function corresponding to the selected graphic object is superimposed on at least one area of the screen information and is output. 6. The apparatus of claim 5,
Wherein the control unit executes a function corresponding to the graphic object when a predetermined number of blinks of eyes are sensed by the sensing unit after the gaze reaches the graphic object. The method according to claim 6,
The memory stores facial expression data relating to a facial expression of a user,
The sensing unit acquires the facial expression of the user,
Wherein,
And restricts the execution of the function when the facial expression of the user matches the facial expression of the user with the facial expression data. 3. The apparatus of claim 2,
If it is detected by the sensing unit that the visual object is maintained in the graphic object for a preset time,
And outputs preview information on an execution screen of a function corresponding to the graphic object. 9. The method of claim 8,
Wherein the output of the preview information is terminated when a predetermined time elapses. The method according to claim 1,
Wherein the display unit outputs one of a plurality of pages sequentially dividing time data as the screen information,
Wherein,
If the specified region has a range larger than a predetermined size,
And controls the display unit to change the screen information to a next page among the plurality of pages when a specific time elapses.

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