KR20130058204A - Mobile terminal and method for controlling thereof - Google Patents

Abstract

PURPOSE: A portable terminal and a control method thereof are provided to notify the limitation of three-dimensional effect change in a screen in which a three-dimensional image is displayed. CONSTITUTION: A display unit(151) displays a three-dimensional image. A control unit(180) selects one or more objects displayed on the display unit regarding a first user input. The control unit converts the three-dimensional effect of the selected object regarding a second user input. When the change of the three-dimensional effect is arranged to the limitation of the three-dimensional effect, the control unit executes predetermined alarm operation. The predetermined alarm operation is vibration in the limitation of the three-dimensional effect change. [Reference numerals] (110) Wireless communication unit; (111) Broadcasting reception module; (112) Mobile communication module; (113) Wireless Internet module; (114) Local area communication module; (115) Location information module; (120) A/V input unit; (121) Camera; (122) Microphone; (130) User input unit; (140) Sensing unit; (141) Proximity sensor; (150) Output unit; (151) Display unit; (152) Sound output module; (153) Alarm unit; (154) Haptic module; (155) Projector module; (160) Memory; (170) Interface unit; (180) Control unit; (181) Multimedia module; (190) Power supplying unit

Description

[0001] MOBILE TERMINAL AND METHOD FOR CONTROLLING THEREOF [0002]

The present invention relates to a mobile terminal displaying a 3D stereoscopic image and a control method thereof.

Terminals may be divided into mobile / portable terminals and stationary terminals according to their mobility. The mobile terminal may be further classified into a handheld terminal and a vehicle 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 enhance the functionality of such terminals, it may be considered to improve the structural and / or software parts of the terminal. In particular, the spread of mobile terminals capable of representing 3D stereoscopic images is increasing.

An object of the present invention is to provide a mobile terminal and a control method thereof capable of informing a limitation of a change in a stereoscopic 3D effect when a 3D stereoscopic image of an object is changed on a screen displaying a 3D stereoscopic image.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not restrictive of the invention, unless further departing from the spirit and scope of the invention as defined by the appended claims. It will be possible.

The first technical aspect of the present invention, the display unit capable of displaying a three-dimensional image; Select one or more of the objects displayed on the display unit according to a first user input, change a three-dimensional effect of the selected object according to a second user input, and preset notification when the three-dimensional change reaches a preset three-dimensional change limit It is to provide a mobile terminal including a control unit for performing an operation.

According to a second technical aspect of the present invention, there is provided a method including: detecting a first user input of selecting one or more of objects displayed on the display unit capable of displaying a 3D image; Sensing a second user input for changing a three-dimensional effect of the selected one or more objects; When the 3D change according to the second user input reaches a preset 3D change limit, it provides a control method of a terminal including performing a preset notification operation.

According to a third technical aspect of the present invention, there is provided a method including detecting a first user input of selecting one or more of objects displayed on a display unit capable of displaying a 3D image; Sensing a second user input for changing a three-dimensional effect of the selected one or more objects;

When the stereoscopic change according to the second user input reaches a preset stereoscopic change limit to provide a recording medium storing a program for executing a control method of the mobile terminal comprising the step of performing a predetermined notification operation.

In the first to third technical aspects of the present invention, the preset notification operation may be that the object vibrates at the three-dimensional change limit.

The preset notification operation may be such that the object is curved in a spherical shape with respect to the center of the object.

In addition, when the first user input is detected, the display may display a semi-transparent image of the selected object at the three-dimensional change limit position, and the preset notification operation may include changing the translucent image opaquely.

In addition, the preset notification operation may be a vibration of the mobile terminal for a predetermined time.

The mobile terminal may output a first sound when the stereoscopic sense of the object increases, output a second sound when the stereoscopic sense of the object decreases, and the preset notification operation may output a third sound.

In addition, the display unit may include a touch screen for the first user input, and the first user input may include one or more contacts of the user with respect to the touch screen.

The mobile terminal may further include a proximity sensor for the second user input, and the second user input may include a movement in a vertical direction from the surface of the display unit.

In addition, when the movement is far from the surface, the three-dimensional feeling of the object may increase.

In addition, the second user input may further include a pressure applied to the surface of the display unit, and the stereoscopic feeling of the object may be reduced in proportion to either the magnitude of the pressure or the time for which the pressure is applied.

The objects may be represented by a 2D image before the first user input, and the objects may be represented by a 3D image after the detection of the second user input.

The mobile terminal according to the embodiment of the present invention configured as described above may inform the user of the limit of the three-dimensional change, thereby providing the user with reliability of the operation.

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

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.
2 is a view showing the appearance of a mobile terminal according to an embodiment of the present invention;
3 is a front view of a portable terminal for explaining an operation state of the portable terminal according to the present invention;
4 is a diagram for explaining a proximity depth of a proximity sensor.
5 is a view for explaining the principle of binocular disparity.
6 is a view for explaining the sense of distance and three-dimensional depth by binocular parallax.
7 is a view showing a method of implementing a 3D stereoscopic image in the display unit of the viewing barrier method that can be applied to an embodiment of the present invention.
8 is a view for explaining a method of informing the change of the three-dimensional change and the three-dimensional change on the screen displaying the 3D stereoscopic image according to an embodiment of the present invention.
9 is a view for explaining another method for informing a limit of a three-dimensional change.
10 is a view for explaining another method for informing the limit of the three-dimensional change.

Hereinafter, a mobile terminal related to the present invention will be described in detail with reference to the drawings. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role.

The mobile terminal described in this specification may include a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), and navigation. However, 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 sensor 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, and a mobile terminal having more or fewer components may be implemented.

Hereinafter, the components will be described in order.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

The sensor unit 140 detects a current state of the mobile terminal 100 such as an open / closed state of the mobile terminal 100, a position 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 sensor unit 140 may include a proximity sensor 141.

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

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

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

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

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

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

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

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

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

Examples of the proximity sensor include a transmission photoelectric sensor, a direct reflection photoelectric sensor, a mirror reflection photoelectric sensor, a high frequency oscillation proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor. And to detect the proximity of the pointer by the change of the electric field along the proximity of the pointer when the touch screen is electrostatic. In this case, the touch screen (touch sensor) may be classified as a proximity sensor.

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

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

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

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

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

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

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

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

Specifically, the projector module 155 includes a light source (not shown) that generates light (for example, laser light) for outputting an image to the outside, a light source And a lens (not shown) for enlarging and outputting the image at a predetermined focal distance to the outside. Further, the projector module 155 may include a device (not shown) capable of mechanically moving the lens or the entire module to adjust the image projection direction. The projector module 155 can be divided into a CRT (Cathode Ray Tube) module, an LCD (Liquid Crystal Display) module and a DLP (Digital Light Processing) module according to the type of the display means. In particular, the DLP module may be advantageous for miniaturization of the projector module 151 by enlarging and projecting an image generated by reflecting light generated from a light source on a DMD (Digital Micromirror Device) chip. Preferably, the projector module 155 may be provided longitudinally on the side, front or back side of the mobile terminal 100. It goes without saying that the projector module 155 may be provided at any position of the mobile terminal 100 as occasion demands.

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

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

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

The identification module is a chip that stores various types of information for authenticating the use authority of the mobile terminal 100. The identification module includes a user identification module (UIM), a subscriber identification 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. The various command signals or the power source input from the cradle may be operated as a signal for recognizing that the mobile terminal is correctly mounted on the cradle.

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

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

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

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

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

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

Description

2 is a diagram illustrating an appearance of a mobile terminal according to an embodiment of the present invention. Referring to FIG. 2A, the disclosed portable terminal 100 includes a terminal body in a bar shape. However, the present invention is not limited thereto, and can be applied to various structures such as a slide type, a folder type, a swing type, and a swivel type in which two or more bodies are relatively movably coupled.

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

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

The display unit 151, the audio output unit 152, the camera 121, the user input units 131 and 132, the microphone 122, and the interface 170 may be disposed in the terminal body, mainly the front case 101. have.

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

The user input units 131 and 132 are 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 operation units 131 and 132 may be collectively referred to as a manipulating portion and may be employed in any manner as long as the user operates in a tactile manner.

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

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

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

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

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

In addition to the antenna for talking and the like, a broadcast signal receiving antenna 116 may be further disposed on the side of the terminal body. The antenna 116, which forms part of the broadcast receiving module 111 (see FIG. 1), can be installed to be able to be drawn out from the terminal body.

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

The rear case 102 may further include a touch pad 135 for sensing a touch. The touch pad 135 may also be of a light transmission type like the display unit 151. [ In this case, if the display unit 151 is configured to output time information on both sides, the time information can be recognized through the touch pad 135 as well. The information output on both sides may be all controlled by the touch pad 135. [ Alternatively, a display may be additionally mounted on the touch pad 135, and a touch screen may be disposed on the rear case 102 as well.

Touch input

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

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

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

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

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

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

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

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

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

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 the 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 (d0), it is recognized as a contact touch. If the pointer is located on the touch screen at a distance less than the distance d1, it is recognized as a proximity touch of the first proximity depth. If the pointer is located on the touch screen at a distance d1 or less and less than the distance d2, the pointer is recognized as a proximity touch of the second proximity depth. When the pointer is spaced apart from the d2 distance by more than d3 distance on the touch screen, it is recognized as a proximity touch of a third proximity depth. When the pointer is located at a distance greater than or equal to d3 on 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.

Types and implementation methods of 3D stereoscopic images

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

Stereoscopic images that can be implemented on the display unit 151 of the mobile terminal can be classified into two categories. The criterion for this classification is whether or not different images are provided in 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 substantial part of such a stereoscopic image can be referred to as a planar image.

The second category is a stereo scopic method in which different images are provided in both eyes. It is a method using a principle of feeling a three-dimensional feeling when a human is looking at an object with the naked eye. In other words, the two eyes of a person see different plane images when they see the same thing by the distance between them. These different planar images are transmitted to the brain through the retina, and the brain fuses them to feel the depth and reality of the stereoscopic image. Therefore, binocular disparity due to the distance between the two eyes makes a sense of stereoscopic effect, and this 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 410 is viewed with the naked eye in front of the eye level. In this case, a left-eye plane image 420 in which only the top, front, and left sides of the hexahedron 410 are visible in the left eye. In addition, a right-eye plane image 430 in which only the top, front, and right sides of the hexahedron 410 are visible in the right eye.

If the left eye plane image 420 is left in the left eye and the right eye plane image 430 is in the right eye, the person can actually feel as if he or she is looking at the cube 410, even if it is not an object in front of the actual eye.

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. Next, the three-dimensional depth due to binocular disparity will be described with reference to FIG. 6.

6 is a conceptual diagram for explaining a sense of distance and three-dimensional depth due to binocular parallax.

Referring to FIG. 6, when the hexahedron 500 is viewed at a distance d1 through both eyes, the lateral gravity of an image that enters each eye is relatively higher than that of the hexahedron 500 at a distance d2, and the image of the image seen through both eyes is higher. The difference is also great. In addition, the degree of three-dimensional feeling that a person feels when viewing the cube 500 at a distance d1 is greater than when the cube 500 is viewed at a distance d2. In other words, when a person looks at an object through both eyes, the closer to the object, the greater the three-dimensional feeling, and the farther the object, the less the three-dimensional feeling.

This difference in three-dimensionality can be digitized to a 3D depth or 3D level. Hereinafter, in the present specification, a high three-dimensional depth of a nearby object is represented by a low three-dimensional depth and a low three-dimensional level, and a low three-dimensional sense of a remotely located object is represented by a high three-dimensional depth and a high three-dimensional level. The definition of the three-dimensional depth or three-dimensional level is relative, and the classification criteria and the direction of increase / decrease may be changed.

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

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

As described above, in order to realize a 3D stereoscopic image, it is necessary that the right eye image and the left eye image are divided into two and reach the binocular. Various methods for this are 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.

FIG. 7 is a conceptual diagram illustrating a method of implementing 3D stereoscopic image in a display barrier type display unit applicable to an embodiment 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. 7A 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. 7B, 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 due to 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.

7 illustrates that the parallax barrier moves in parallel in one axial direction, 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 a display part and a binocular eye, and a method of refracting a traveling direction of light through lenses on a lenticular screen so that different images are reached in both eyes.

3) polarized glasses system

Polarized light is polarized so that the directions of polarization are orthogonal to each other to provide different images in both directions or in the case of the circular polarized light so that the directions of rotation are different from each other.

4) Active shutter method

Eye image is alternately displayed at a predetermined cycle through the display unit and the user's eyeglasses are arranged such that when the image in the corresponding direction is displayed, the shutter in the opposite direction is closed, To reach the eye. That is, during the time when the left eye image is displayed, the shutter of the right eye is closed to allow the left eye image to be reached only in the left eye, and the shutter of the left eye is closed during the time when the right eye image is displayed.

Changing the 3D effect of an object on the 3D stereoscopic screen and alerting the 3D limitation

Hereinafter, embodiments of the present invention will be described in detail. When the above-described parts and names of the parts mentioned in the following description overlap, it may be understood that the corresponding parts further include the technical idea described below in the above-described technical idea. In addition, the "object" used below may be understood as all selectable by a user input, which may be displayed on the display unit 151 as a 3D stereoscopic image such as an icon, a widget, or a photo.

FIG. 8 is a diagram for describing a method of notifying a stereoscopic change and a limitation of a stereoscopic change on a screen on which a 3D stereoscopic image is displayed according to an embodiment of the present invention.

Referring to FIG. 8, it can be seen that a plurality of objects 820 are displayed on the display unit 151. Here, the plurality of objects 820 may be represented in 2D on the display unit 151 or may be represented in 3D stereoscopic images. In FIG. 8, the plurality of objects 820 are illustrated in 2D, and the following description is based on this. As described above, any one object 830 among the plurality of objects 820 represented in the display unit 151 may be selected by a first user input. The first user input may be touched by the user 840 on the surface of the display unit 151 including the touch sensor. In FIG. 8, although the first user input is illustrated as one contact with the position of one object 830 on the surface of the display unit 151, this is exemplary and a plurality of objects may be selected. And two or three contacts to the surrounding area of the object.

Subsequently, when there is a first user input, the controller 180 determines whether there is a second user input for changing the three-dimensional effect of the selected object. The second user input may be the proximity touch described above. In detail, the second user input moves 841 a device (for example, a stylus pen) that touches a finger or the display unit 151 in a direction perpendicular to the surface of the display unit 151 while the object is selected. Can be. When the second user input is detected, the controller 180 may change the 3D effect of the selected object 830 according to the degree of movement. Here, the stereoscopic sense may be understood as a sense of distance / perspective between objects represented in the 3D stereoscopic image. The three-dimensional change can be made by duplicating the image currently displayed on the display unit 151 and then moving a certain distance in parallel to overlap the original image, by replicating only pixels related to the object selected from the image displayed on the display unit 151 and then selecting the selected object. Various methods, such as a method of overlapping the image including the original object by moving in parallel by a predetermined distance based on the position of, may be implemented by the controller 180.

Also, the second user input may be pressure applied to the display unit 151. In this case, the object may be expressed in a three-dimensional sense as if it is retracted in the plane of the display unit 151 as compared with the plurality of objects 820 represented in the display unit 151 in proportion to the pressure applied. For example, it may be expressed in a three-dimensional sense as moved toward the object 832 of FIG. 8.

The 3D change by the second user input of the object 830 selected by the first user input may be made only up to the limit layers 811 and 812 of the 3D change that can be expressed by the display unit 151. In detail, referring to FIG. 8, the selected object 830 may be expressed to have a large 3D effect in proportion to the motion 841 which is the second user input. In this case, when the second user input reaches the limit layer 811 that can be expressed by the display unit 151, the 3D effect of the object is not increased even if the second user input continues. In this case, the controller 180 notifies the user that the limit of the three-dimensional change has been reached through a preset notification.

The preset notification may be that the object 830 vibrates when the selected object 830 reaches the limit layer 831. The vibration of the object 830 may be variously implemented by a method such as trembling in left, right, and diagonal directions in the limit layer 811. In addition, even when the three-dimensional change of the object is made by pressure as described above, when the other limit layer 812 is reached, this may be notified by the vibration of the object. As described above, according to the embodiment of the present invention, the user can be notified of the limit of the three-dimensional change of the object, thereby providing the user with reliability of the operation. Here, various methods for informing the limitation of the three-dimensional effect will be described below.

9 is a view for explaining another method for informing the limit of the three-dimensional change.

Referring to FIG. 9, as in FIG. 8, the display unit 151 and the limit layers 811 and 812 for changing a plurality of objects and 3D are illustrated. When the object reaches the limit layer of the three-dimensional change, the object may be expressed as if it is bent in a spherical shape with respect to the center of the object as shown in order to inform the user that the limit of the three-dimensional change. The method can express the limit layer of three-dimensional alteration as if it is any physical transparent film and the object is blocked by movement by this physical film, providing the user with realism and at the same time effectively indicating the limit of three-dimensional change.

10 is a view for explaining another method for informing the limit of the three-dimensional change.

Referring to FIG. 10, when an object is selected by the first user input, the controller 180 may display the copies 1031 and 1032 of the semi-transparent object on the limit layers 811 and 812 of the 3D change. Subsequently, when the stereoscopic sense of the object is changed by the second user input to reach one of the limit layers, the copy of the translucent object may be set to become opaque. The method may inform the user in advance of the limit layer of the three-dimensional change, thereby providing the user with intuition and predictability of the manipulation.

In addition, although not shown in the drawings, it may provide an auditory and tactile experience as a method of informing the limit of the three-dimensional change. Specifically, the controller 180 outputs a first sound when the 3D effect of the object is increased by the second user input, and a second sound when the 3D effect is decreased, and when the limit of the 3D change is reached, the first sound and the second sound are output. A method of outputting a third sound different from the sound may be applied.

Alternatively, the controller 180 may process the mobile terminal to vibrate at the limit of stereoscopic change. In addition, a method for informing the limitation of the three-dimensional change disclosed above may be combined, and other methods that may be obviously inferred by those skilled in the art from the above methods are applicable.

Of three-dimensional limit notification Application example

As described above, after the object is selected by the first user input, the three-dimensional effect of the object selected by the second user input is changed, and when the limit of the three-dimensional change is reached, the user may be notified of the three-dimensional effect. The three-dimensional limit notification as described above can be various applications, which will be described below.

As described above, after the limit of the stereoscopic change is notified, a third user input may be input to the controller 180. The third user input is an operation of a user distinguished from the second user input and may be, for example, a movement in a direction perpendicular to the second user input. If the selected object is an application icon, when there is a third user input, the controller 180 may process deleting the icon.

Alternatively, it may be assumed that an e-book application is currently driven in the mobile terminal, and the screen displayed on the display unit 151 has the e-books inserted in the bookshelf. One of the e-books is selected when the first user inputs, and the 3D effect is changed based on the selected e-books when the second user is input. When the limit of the three-dimensional change is reached, the selected e-book vibrates and the like is notified by the aforementioned method. If there is a third user input, the electronic book may be controlled to be opened.

In addition, a variety of applications are possible in a variety of applications, such as games, photo viewers, in this case, the limit notification of the three-dimensional change can act as a reference point for the continuous motion input.

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

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

100: mobile terminal 110: wireless communication unit
120: A / V input unit 130: user input unit
140: sensor unit 150: output unit
160: memory 170: interface unit
180: control unit 190: power supply unit

Claims (13)

A display unit capable of displaying a 3D image;
Select one or more of the objects displayed on the display unit according to a first user input, change a three-dimensional effect of the selected object according to a second user input, and preset notification when the three-dimensional change reaches a preset three-dimensional change limit A control unit for performing an operation;
Mobile terminal comprising a. The method of claim 1,
The preset notification operation,
And the object vibrates at the three-dimensional change limit. The method of claim 1,
The preset notification operation,
The object is bent in a spherical shape with respect to the center of the object, the mobile terminal. The method of claim 1,
When the first user input is detected, the display unit displays a translucent image of the selected object at the 3D change limit position.
The preset notification operation is that the translucent image is changed to opaque. The method of claim 1,
The preset notification operation is that the mobile terminal vibrates for a preset time. The method of claim 1,
The mobile terminal outputs a first sound when the three-dimensional sense of the object increases, and outputs a second sound when the three-dimensional sense of the object decreases,
The preset notification operation is to output a third sound. The method of claim 1,
The display unit includes a touch screen for the first user input,
And the first user input comprises one or more contacts of the user to the touch screen. The method of claim 1,
The mobile terminal further includes a proximity sensor for the second user input,
And the second user input comprises a movement in a vertical direction from the surface of the display. 9. The method of claim 8,
When the movement is far from the surface, the stereoscopic feeling of the object is increased. 9. The method of claim 8,
The second user input further includes pressure applied to a surface of the display unit,
3D of the object is reduced in proportion to either the magnitude of the pressure or the time the pressure is applied. The method of claim 1,
The object is represented by a two-dimensional image before the first user input, the object is represented by a three-dimensional image after the detection of the second user input. Detecting a first user input for selecting one or more of the objects displayed on the display unit capable of displaying a 3D image;
Sensing a second user input for changing a three-dimensional effect of the selected one or more objects;
Performing a preset notification operation when the 3D change according to the second user input reaches a preset 3D change limit;
Control method of a terminal, including. Detecting a first user input for selecting one or more of the objects displayed on the display unit capable of displaying a 3D image;
Sensing a second user input for changing a three-dimensional effect of the selected one or more objects;
Performing a preset notification operation when the 3D change according to the second user input reaches a preset 3D change limit;
A recording medium storing a program for executing a control method of a mobile terminal comprising a.

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