KR20110054256A - Mobile terminal and method for controlling thereof - Google Patents

Abstract

PURPOSE: A mobile terminal and a method for controlling the same are provided to supply a new visual effect by using a 3D object arranged in a virtual 3D space. CONSTITUTION: A mobile terminal comprises: a user input unit(120) for receiving a command from a user, and a display unit(151) includes a parallax generation unit for changing the progressing direction of light and the vibration direction which are generated from the display device. The control unit generates a first stereoscopic display image which can be displayed according to the command input of a user through a user input unit.

Description

Mobile terminal and its control method {MOBILE TERMINAL AND METHOD FOR CONTROLLING THEREOF}

The present invention relates to a mobile terminal capable of providing a stereoscopic user interface.

The terminal can move And can be divided into a mobile / portable terminal and a stationary terminal depending on whether the mobile terminal is a mobile terminal or a mobile terminal. 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.

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 increase the function of such a terminal, it may be considered to improve the structural part and / or the software part of the terminal.

Recently, as a 3D image may be implemented in a display unit of a terminal, more convenient operation methods through a 3D user interface are required.

The present invention is to provide a more convenient stereoscopic user interface.

In addition, the present invention is to provide a three-dimensional user interface for providing a new visual effect by using a three-dimensional object disposed in a virtual three-dimensional space.

In addition, the present invention is to provide a method for conveniently manipulating a three-dimensional object disposed in a virtual three-dimensional space.

Technical problems to be achieved in the present invention are not limited to the above-mentioned technical problems, and other technical problems not mentioned above will be clearly understood by those skilled in the art from the following description. Could be.

Mobile terminal according to an embodiment of the present invention for realizing the above object is a user input unit for receiving a command from the user; Control unit; And a display unit provided on an upper surface of the liquid crystal display and the liquid crystal display and including a parallax generating means for changing at least one of a traveling direction and a vibration direction of light generated from the liquid crystal display under the control of the controller. .

In this case, the controller arranges at least one three-dimensional object having a predetermined three-dimensional depth in a virtual three-dimensional space in a predetermined form and according to the user's command input through the user input unit, the at least one three-dimensional object. A first stereoscopic display in which at least one of the position and three-dimensional depth of each object can be changed is generated, and the first stereoscopic display is converted into a left eye image and a right eye image having a predetermined parallax, and the left eye is displayed through the display unit. The user image may control the display unit to reach the left eye of the user and the right eye image to the right eye of the user.

The mobile terminal according to at least one embodiment of the present invention configured as described above may be more conveniently operated through a stereoscopic user interface.

In addition, according to the present invention, a three-dimensional user interface using a three-dimensional object disposed in a three-dimensional space is provided so that the user can operate the mobile terminal more conveniently with a new visual effect.

The effects obtainable in the present invention are not limited to the above-mentioned effects, and other effects not mentioned above may be clearly understood by those skilled in the art from the following description. will be.

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.

Overall configuration

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

The mobile terminal 100 includes a wireless communication unit 110, an 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 reception module 111 may be configured to be suitable for not only the above-described digital broadcast system but also other broadcast 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 can be converted into a form that can be transmitted to the mobile communication base station through the mobile communication module 112 when the voice data is in the call mode, and output. 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 includes a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), and a flexible display (flexible). 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. By 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 surrounded 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 where the proximity touch is performed by the pointer on the touch screen refers to a position where the pointer is perpendicular 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. Accordingly, the identification device can be connected to the terminal 100 through the port.

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

Organization description

2 is a front perspective view of an example of a mobile terminal or a mobile 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. The sound output unit 151 and the camera 121 are disposed in regions adjacent to one end of both ends of the display unit 151, and the user input unit 131 and the microphone 122 are disposed in regions 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 operation unit 131 receives commands such as start, end, scroll, and the like, and the second operation unit 132 controls the size of the sound output from the sound output unit 152 or the size of the sound output from the display unit 151 To the touch recognition mode of the touch screen.

Front touch

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

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

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

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

3 illustrates receiving a touch applied to the virtual keypad 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 virtual keypad 151c is displayed in which a number for inputting a telephone number or the like is displayed. When the virtual keypad 151c is touched, numbers and the like corresponding to the touched virtual keypad are displayed on the output window 151a. When the first manipulation unit 131 is operated, a call connection to the telephone number displayed on the output window 151a is attempted.

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. In addition, when the finger is moved on the display unit 151 or the touch pad 135, a path along which the finger moves may be visually displayed on the display unit 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. In the case of being touched together, there may be a case where the user clamps the terminal body using the thumb and index finger. For example, the function may include activation or deactivation of the display unit 151 or the touch pad 135.

Proximity touch

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.

Meanwhile, a graphic in the form of an arrow or a finger for pointing a specific object or selecting a menu on the display unit is called a pointer or a cursor. However, the pointer is often used interchangeably to mean a finger, a stylus pen, or the like for a touch operation. Therefore, in the present specification, the graphic displayed on the display unit is referred to as a cursor to clearly distinguish the two, and a physical means for performing touch, proximity touch, and gesture such as a finger or a stylus pen is called a pointer.

Hereinafter, a method of expressing a 3D image of a mobile terminal and a display unit therefor that can be applied in embodiments of the present invention will be described.

Stereoscopic images implemented on the display unit 151 of the mobile terminal may be classified into two categories. The criterion of this division is whether different images are provided to both eyes.

First, the first stereoscopic image category will be described.

The first category is a method in which the same image is provided in both eyes (monoscopic), which can be implemented as a general display unit. More specifically, the controller 180 arranges a polyhedron generated through one or more points, lines, planes, or a combination thereof in a virtual three-dimensional space, and displays an image viewed from a specific viewpoint on the display unit 151. That's how. Therefore, the real of such a stereoscopic image may be referred to as a planar image.

The second category is a method in which different images are provided in both eyes (stereoscopic), and a method using the principle of feeling a three-dimensional feeling when a human sees an object with the naked eye. That is, two eyes of a person see different plane images when viewing the same object by the distance between them. These different planar images are delivered to the brain through the retina, and the brain fuses them to feel the depth and reality of the stereoscopic image. Therefore, although there are some differences between people, binocular disparity due to the distance between the two eyes makes a sense of three-dimensional feeling, and such binocular disparity becomes the most important element of the second category. Such binocular disparity will be described in more detail with reference to FIG. 5.

5 is a conceptual diagram for explaining the principle of binocular disparity.

In FIG. 5, it is assumed that the hexahedron 510 is visually placed in front of the eye level. In this case, the left eye planar image 520 showing only three surfaces of the top, front, and left sides of the hexahedron 510 is seen as the left eye. In addition, as the right eye, the right eye plane image 530 showing only three surfaces of the top, front, and right sides of the cube 510 is visible.

If the left eye plane image 520 is reached in the left eye and the right eye plane image 530 is reached in the right eye, even if the object is not an object in front of the eye, the person may feel as if the user actually sees the cube 510.

As a result, in order to implement the stereoscopic image of the second category in the mobile terminal, the left eye image and the right eye image, which have been viewed with the same object at a predetermined time, must be separated and reached through the display unit.

In the present specification, in order to distinguish the above two categories, for convenience, a stereoscopic image of the first category is referred to as a "2D stereoscopic image", and a stereoscopic image of the second category is referred to as a "3D stereoscopic image".

Next, an implementation method of the 3D stereoscopic image will be described.

As described above, in order to implement a 3D stereoscopic image, the right eye image and the left eye image need to be divided and reached to both eyes. Various methods for this will be described below.

1) parallax barrier method

The parallax barrier method is a method of controlling a light propagation direction by electronically driving a blocking device provided between a general display unit and both eyes so that different images may be reached in both eyes.

This will be described with reference to FIG. 6.

FIG. 6 is a conceptual diagram illustrating a method of implementing 3D stereoscopic image in a display barrier type display unit applicable to embodiments of the present invention.

The structure of the display barrier type display unit 151 for displaying a 3D stereoscopic image may have a configuration in which the switch liquid crystal 151b is combined with a general display device 151a. The optical parallax barrier 600 may be operated using the switch liquid crystal 151b to control the traveling direction of the light as shown in FIG. 6A to separate the light to reach the left and right eyes. Therefore, when an image in which a right eye image and a left eye image are combined is displayed on the display device 151a, the image corresponding to each eye is seen from the user's point of view as if it is displayed in three dimensions.

In addition, as shown in FIG. 6B, the parallax barrier 600 by the switch liquid crystal is electrically controlled so that all of the light is transmitted, thereby eliminating separation of the light by the parallax barrier so that the same image can be seen by the left and right eyes. It may be. In this case, the same function as that of the general display unit may be performed.

6 illustrates that the parallax barrier moves in parallel in one axial direction, but the present invention is not limited thereto, and a parallax barrier capable of moving in parallel in two or more axial directions according to a control signal of the controller 180 may be used. have.

2) Lens Refraction Method

The lens refraction method (lenticular) is a method using a lenticular screen provided between the display unit and both eyes, and is a method of reaching different images in both eyes by refracting the traveling direction of light through the lenses on the lenticular screen.

3) polarized glasses

It is a method of providing different images in both eyes by making the polarization directions perpendicular to each other, or providing different images in both eyes by polarizing them so that the rotation directions are different from each other in the case of circular light.

4) Active Shutter Method

As a type of glasses, the right eye image and the left eye image are alternately displayed at predetermined intervals through the display unit, and the user's glasses close the shutter in the opposite direction when the image in the corresponding direction is displayed, so that the image in the corresponding direction is displayed in the corresponding direction. How to reach the eye. That is, the left eye image only reaches the left eye while the left eye image is displayed, and the left eye image reaches the right eye only while the right eye image is displayed.

For convenience of description, it is assumed that the mobile terminal mentioned below includes at least one of the components shown in FIG. 1. In particular, the mobile terminal to which the present invention is applicable includes a display unit capable of providing a 3D stereoscopic image to a user through at least one of the aforementioned 3D stereoscopic image implementation methods.

First Example

The mobile terminal according to the first embodiment of the present invention may provide a stereoscopic user interface capable of displaying at least one three-dimensional object in a virtual three-dimensional space and manipulating it in various ways.

7 illustrates an example of a method of selecting a 3D object in a stereoscopic user interface that may be implemented in a mobile terminal according to an embodiment of the present invention.

Although the following display state diagrams including FIG. 7 are shown as planar images due to the limitation of the drawing, it is assumed that the 3D stereoscopic image is provided to the user in the above-described 3D stereoscopic image implementation manner.

In FIG. 7, a total of three virtual layers from layer 0 (L0) to layer 2 (L2) may be arranged in a stacked form at a predetermined interval in the three-dimensional space. More specifically, L1 is spaced apart from L0 by a distance d1 and L2 is spaced apart from L0 by a distance d2. In addition, the arrangement of the layers is closer to the display unit as the L2 to L0 direction, and closer to the user direction from the L0 to L2 direction.

In this case, 3D objects may be disposed on the virtual layer.

In FIG. 7A, it is assumed that one cube 700 or 720 is disposed as a 3D object on L2 and L1, respectively. Here, the classification of the layers is to represent the 3D depth (depth) in which the three-dimensional object is arranged, when the actual state of the arrangement of the three-dimensional object is implemented as a 3D stereoscopic image through the display unit 151, the classification of the layers You can make it invisible to the user.

At the user's point of view, the three-dimensional object 700 located on the L2 is disposed at the top to feel close to the user. In addition, the three-dimensional object 720 located on the L1 is lower than the height (d2-d1) the placement height than the three-dimensional object 700 located on the L2 is felt away from the user. In this case, the 3D object 700 positioned on L2 may have a lower 3D depth than the 3D object 720 positioned on L1.

These three-dimensional objects can be changed in the placement position and / or three-dimensional depth through a predetermined command input through the user input unit. The command input for manipulating the layer objects may include a camera 121 for photographing the location of the pointer, a proximity sensor 140 for recognizing the proximity distance of the pointer, and a touch screen capable of distinguishing the contact touch and the proximity touch ( 151), or the like.

In this case, when the camera 121 is used, the camera 121 is preferably disposed in a direction in which the pointer can be photographed on the same plane as the display 151 in which the stereoscopic user interface according to the present invention is implemented. The controller 180 may recognize the location of the pointer and / or the movement pattern as a command input of a user corresponding to the location of the pointer in the image captured by the camera 121.

First, a method of selecting one three-dimensional object when a plurality of three-dimensional objects are displayed through the stereoscopic user interface according to the present invention will be described with reference to FIG. 7B.

In FIG. 7B, the same situation as in FIG. 7A is assumed. In this case, the user may select the 3D object 720 by touching (closely touching) the 3D object 720 positioned on L1 with a pointer, that is, a hand. In this case, in order to prevent a malfunction in the selection process, the mobile terminal may be recognized as being selected only when the hand touches the corresponding 3D object for a predetermined time or more. In order to recognize this, the mobile terminal needs to determine the location of the pointer through the proximity sensor 140, the camera 121, and the touch screen 151.

In the object selection method described with reference to FIG. 7, a selection problem may occur when two or more three-dimensional objects are arranged in a state where at least some of them overlap each other by only three-dimensional depths. This will be described with reference to FIG. 8.

8 illustrates an example of a method of selecting a 3D object in a stereoscopic user interface that may be implemented in a mobile terminal according to an embodiment of the present invention.

Referring to FIG. 8A, the three-dimensional depths (ie, layers) in which the two three-dimensional objects 800 and 820 are arranged are different, but at the user's viewpoint, the right side and the L1 of the three-dimensional object 800 disposed in L2 are different. The left side 820 of the arranged three-dimensional object is disposed adjacent to each other. Accordingly, when the 3D object selection method described with reference to FIG. 7 is applied, a malfunction may occur in an area in which two 3D objects are adjacent to each other.

In order to prevent such a malfunction, an embodiment of the present invention proposes an object selection method using a proximity depth. Referring to FIG. 8B, the mobile terminal may be provided with a touch screen 151 for recognizing a user's proximity touch in at least two steps. In this case, the distance d0 (that is, the touch touch) may correspond to L0, the period between d1 to d2 may correspond to L1, and the distance after d2 may correspond to L2.

 Accordingly, in selecting one of the three-dimensional objects disposed adjacent to each other at the user's point of view, by varying the depth of the proximity touch, it is possible to prevent a malfunction and to select only the three-dimensional objects of the desired layer. Of course, even in such a selection method, in order to prevent a malfunction in the process of moving the pointer to a proximity depth corresponding to the layer on which the object is disposed, the selection may be performed only when the pointer points to the object for a predetermined time or more.

2nd Example

Next, as another embodiment of the present invention, a method of selecting a 3D object and manipulating the same will be described.

9 illustrates an example of a method of selecting and manipulating a 3D object in a stereoscopic user interface that may be implemented in a mobile terminal according to another embodiment of the present invention.

Referring to FIG. 9A, a three-dimensional object 900 having a three-dimensional '1' shape on a layer having a predetermined three-dimensional depth is displayed through a three-dimensional user interface according to the present invention.

In this case, as shown in FIG. 9B, when the user moves the pointer (the finger here) to the 3D object 900, a predetermined visual effect may be given to indicate that the object is selected. As an example of such a visual effect, a color or a pattern of texture of a 3D object surface may be changed as shown in FIG. 9C. The visual effect of FIG. 9C is exemplary, and the visual effect of the present invention is not limited thereto, and may be applied to the 3D object to inform that various effects are selected, including blinking, size change, and at least some shape change.

As the user moves the finger as shown in FIG. 9D while the corresponding 3D object is selected, the controller 180 may control the object 900 to move in response to the movement of the finger.

If the selection of a particular three-dimensional object is required to be indicated by a pointer for a predetermined time or more, the reverse method may be used to deselect the selected object. For example, if the selection is performed when a particular three-dimensional object is pointed at the pointer for two seconds or more, the release of the selection state may be performed when the pointer stays at the same point for two seconds or more.

10 illustrates another example of a method of selecting and manipulating a 3D object in a stereoscopic user interface that may be implemented in a mobile terminal according to another embodiment of the present invention.

In the following embodiments including FIG. 10, it is proposed to select an object to be performed through a gesture using a pointer such as a finger. To recognize this, the camera 121 is provided at a position where the mobile terminal can capture a moving pointer on the display unit 151 in which the stereoscopic user interface according to the present invention is implemented, or multi-touch (at the same time, at least two points are applied to the mobile terminal). It is preferable that a touch screen capable of recognizing a touch input) is provided. Accordingly, the controller 180 may determine the position of the user's hand and whether the user is taking a clamping gesture by using the camera 121 or the touch screen.

First, referring to FIG. 10A, a three-dimensional '1' shape is displayed as a 3D object 1000 on a stereoscopic user interface according to the present invention as shown in FIG. 9. In this case, even if the user touches the 3D object 1000, the 3D object is not selected. In this case, when the user makes a gesture of clamping the 3D object 1000 as illustrated in FIG. 10B, the controller 180 may recognize this as a selection of the object 1000, and a predetermined visual effect may be obtained. Can be given to the object.

As the user moves the hand while holding the clamping gesture while the corresponding object 1000 is selected through the clamping gesture, the selected object 1000 may move in response to the movement of the hand. When the manipulation of the corresponding 3D object is finished, the user may release the clamping gesture state in order to release the selection state, and accordingly, the selection is released as shown in FIG. 10D and the visual effect applied to the 3D object 1000. Can be removed.

11 illustrates another example of a method of selecting and manipulating a 3D object in a stereoscopic user interface that may be implemented in a mobile terminal according to another embodiment of the present invention.

Referring to FIG. 11A, a 3D object 1100 having a rectangular pillar shape may be displayed on a display unit of a mobile terminal through a stereoscopic user interface according to the present invention. Here, when the user takes a gesture that pushes the upper left side of the 3D object 1100 with a pointer (that is, a finger), the controller 180 determines that the 3D object 1100 moves the central axis 1110 as shown in FIG. 11B. It can be rotated as a reference. At this time, the controller 180 may be controlled to be determined corresponding to the speed of the gesture pushing the degree of rotation and the distance spaced apart from the central axis 1100. That is, the farther the pushing point with the central axis 1100, the greater the degree of rotation, and the closer it is, the less the degree of rotation may be. In addition, the faster the speed of the gesture, the greater the degree of rotation, the slower the degree of rotation may be less.

If the gesture is to flick the 3D object with the fingertip instead of the pushing gesture (the straightness of the pointer), the controller 180 may cause the 3D object to move in the bounced direction along with the rotation effect. .

Hereinafter, a specific example in which the above-described three-dimensional object manipulation method is applied to a mobile terminal will be described.

12 is a display state diagram illustrating an e-book reading screen implemented on a stereoscopic user interface according to another embodiment of the present invention.

Referring to FIG. 12A, an e-book application is executed through a display unit on which a stereoscopic user interface according to the present invention can be implemented. In this case, the user may take a clamping gesture on the lower right side of the e-book to move to the next page. Accordingly, as shown in FIG. 12B, as the user moves his hand to the left while maintaining the clamping gesture, the page turning operation may be performed.

13 is a display state diagram illustrating a board game implemented on a stereoscopic user interface according to another embodiment of the present invention.

First, referring to FIG. 13A, a board game is executed on a display unit of a mobile terminal through a stereoscopic user interface according to the present invention. Here, the board of the board game is displayed on a layer having a predetermined 3D depth, and the words used in the game may be displayed as a 3D object.

At this time, the user takes his hand to the horse 1300 to move his horse 1300, and then selects the horse 1300 through the clamping gesture as shown in Figure 13b, a predetermined time indicating that the selected horse is selected Effects can be given. The user moves the horse 1300 to a desired position as shown in FIG. 13C while moving the hand while maintaining the clamping gesture state, and then releases the selected state for the horse 1300 by releasing the clamping gesture state as shown in FIG. 13D. can do.

Of course, the same method as described with reference to FIG. 7 may be used to operate such a board game. That is, when the user's pointer indicates a specific horse (manipulation target) for a predetermined time or more, the horse is selected, and when the pointer stays at the same point for more than a predetermined time while the horse is selected, the selection may be released.

14 is a display state diagram illustrating a gift box function implemented on a stereoscopic user interface according to another embodiment of the present invention.

First, referring to FIG. 14A, a gift box function is executed on a display unit of a mobile terminal through a stereoscopic user interface according to the present invention. Here, the gift box function may be used in the process of checking an email or a text message, or in the process of checking multimedia content (for example, a wallpaper, an icon pack, a gift barcode, etc.) presented by another user online. May be used. As the gift box function is executed, the gift box 1410 is displayed as a three-dimensional object on the display unit, and as the user applies a clamping gesture to the ribbon 1420 which binds the box with the hand 1400, the ribbon ( 1420 may be removed.

Thereafter, the user can remove the upper lid 1411 of the gift box 1410 by taking a clamping gesture and lifting it as shown in FIG. 14B. Accordingly, as shown in FIG. 14C, a gift 1450 in the form of a dog may be displayed. The user may manipulate the puppy 1450 using one of the three-dimensional object manipulation methods described above.

Further, according to an embodiment of the present invention, the above-described method can be implemented as a code that can be read by a processor on a medium on which the 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.

A mobile terminal having a display unit capable of displaying a stereoscopic image as described above is not limited to the configuration and method of the above-described embodiments, but the embodiments may be modified in various ways. All or some of these may optionally be combined.

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

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

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

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

5 is a conceptual diagram for explaining the principle of binocular disparity.

FIG. 6 is a conceptual diagram illustrating a method of implementing 3D stereoscopic image in a display barrier type display unit applicable to embodiments of the present invention.

7 illustrates an example of a method of selecting a 3D object in a stereoscopic user interface that may be implemented in a mobile terminal according to an embodiment of the present invention.

8 illustrates an example of a method of selecting a 3D object in a stereoscopic user interface that may be implemented in a mobile terminal according to an embodiment of the present invention.

9 illustrates an example of a method of selecting and manipulating a 3D object in a stereoscopic user interface that may be implemented in a mobile terminal according to another embodiment of the present invention.

10 illustrates another example of a method of selecting and manipulating a 3D object in a stereoscopic user interface that may be implemented in a mobile terminal according to another embodiment of the present invention.

11 illustrates another example of a method of selecting and manipulating a 3D object in a stereoscopic user interface that may be implemented in a mobile terminal according to another embodiment of the present invention.

12 is a display state diagram illustrating an e-book reading screen implemented on a stereoscopic user interface according to another embodiment of the present invention.

13 is a display state diagram illustrating a board game implemented on a stereoscopic user interface according to another embodiment of the present invention.

14 is a display state diagram illustrating a gift box function implemented on a stereoscopic user interface according to another embodiment of the present invention.

Claims (12)

A user input unit for receiving a command from a user; Control unit; And A display unit provided on an upper surface of the liquid crystal display and the liquid crystal display and including a parallax generating means for changing at least one of a traveling direction and a vibration direction of light generated from the liquid crystal display under the control of the controller; The control unit, At least one three-dimensional object having a predetermined three-dimensional depth (3D depth) in a virtual three-dimensional space in a predetermined form to position each of the at least one three-dimensional object according to the user's command input through the user input unit and A first stereoscopic display in which at least one of the three-dimensional depths can be changed is generated, and the first stereoscopic display is converted into a left eye image and a right eye image having a predetermined parallax, and the left eye image is displayed through the display unit. To the left eye, the right eye image is to control the display unit to reach the right eye of the user. The method of claim 1, The user input unit, And at least one of a camera for photographing a position of the pointer with respect to the mobile terminal, a proximity sensor for recognizing a proximity distance of the pointer, and a touch screen for distinguishing and recognizing a touch touch and a proximity touch. 3. The method of claim 2, The control unit, And when the pointer points to a specific three-dimensional object among one three-dimensional object, recognizing that the specific three-dimensional object is selected. The method of claim 3, The control unit, And recognizing that the specific three-dimensional object is selected only when the pointer points to the specific three-dimensional object for a predetermined time or more. The method of claim 4, wherein The control unit, And the selected state is released when the pointer stays at the same time point for more than a predetermined time while the specific 3D object is selected. The method of claim 4, wherein The control unit, And a predetermined visual effect is applied to the specific three-dimensional object while the specific three-dimensional object is selected. The method of claim 6, The predetermined visual effect, And a color of the selected 3D object, a pattern of a texture of a surface, a blink, a change in size, and a deformation. The method of claim 3, The user input unit recognizes the separated distance of the pointer to the mobile terminal in at least two distance steps, The control unit, When the at least one three-dimensional object is disposed at at least one of the three-dimensional depth corresponding to each of the at least two distance step, and when the pointer of the at least two distance step is located in a specific distance step, the specific distance step And only a 3D object arranged at a 3D depth corresponding to the control to be selected through the pointer. 3. The method of claim 2, The pointer is a user's hand, The control unit, And recognize that the specific three-dimensional object is selected while the user's hand applies a clamping gesture to the specific three-dimensional object of the at least one three-dimensional object. The method of claim 9, The control unit controls to give a predetermined visual effect to the specific three-dimensional object while the specific three-dimensional object is selected, The predetermined visual effect, And a color of the selected 3D object, a pattern of a texture of a surface, a blink, a change in size, and a deformation. 3. The method of claim 2, The control unit, When the pointer takes an operation of pushing in a specific direction to a point of a specific three-dimensional object of the at least one three-dimensional object, the specific three-dimensional in the pushing direction with the center point of the specific three-dimensional object as a rotation axis Mobile terminal, characterized in that for controlling the rotation of the object. The method of claim 11, The control unit, And the degree of rotation is determined in consideration of the speed of the pushing operation and the distance between the center point and the one point.

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