KR20120081651A - Mobile terminal and method for controlling the same - Google Patents

Abstract

PURPOSE: A mobile terminal and a method for controlling the same are provided to enable a user to watch a 3D image from both front and rear side of the mobile terminal. CONSTITUTION: A transparent display unit displays a 3D image on the front side(151c) and the rear side(151d) of the display unit. A control unit controls the operation related to the marked 3D image. If a command for reversing the 3D image to right and left side is inputted, the control unit reverses the 3D image on the corresponding side.

Description

MOBILE TERMINAL AND METHOD FOR CONTROLLING THE SAME}

The present invention relates to a mobile terminal and a method of controlling the same so that user's convenience can be further considered to enable the use of the terminal.

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 can be divided into a handheld terminal and a vehicle mount terminal according to whether the user can directly carry the mobile terminal.

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.

Recently, as a 3D (hereinafter, referred to as '3D') image may be implemented in a display unit of a terminal, there is a demand for providing various functions using the 3D image.

An object of the present invention is to provide a mobile terminal for displaying a 3D image on a transparent display unit and a control method thereof so that the 3D image can be viewed together from the front and the rear of the mobile terminal.

Another object of the present invention is to provide a mobile terminal and a control method for displaying an optimized 3D image on the front or rear side of the transparent display by displaying the 3D image displayed on the transparent display inverted left and right.

Another object of the present invention, when displaying a 3D image on the transparent display unit, by displaying the first 3D image of the original and the second 3D image of the first 3D image is inverted left and right, the transparent The present invention provides a mobile terminal for displaying 3D images optimized on the front and rear surfaces of a display unit and a control method thereof.

Another object of the present invention, when displaying a 3D image on the transparent display unit, splits the screen of the transparent display unit into a first and a second area, and displays the first 3D image of the original in the first area And displaying a second 3D image in which the first 3D image is inverted left and right in the second area, thereby displaying an optimized 3D image on the front and rear surfaces of the transparent display unit and a control method thereof. .

According to an aspect of the present invention, there is provided a mobile terminal comprising: a transparent display unit displaying a 3D image on a front surface and a rear surface thereof; And a controller configured to control an operation related to 3D images displayed on front and rear surfaces of the transparent display unit, wherein the controller inputs a command for inverting the left and right sides of the 3D image displayed on one of the front and rear surfaces. In this case, the 3D image displayed on the surface corresponding to the command may be inverted and displayed.

In addition, the control method of a mobile terminal according to the present invention comprises the steps of: displaying a 3D image on a transparent display unit having a front and a rear; Detecting whether a command for inverting left and right of the 3D image displayed on one of the front and rear surfaces is input; And inverting and displaying the 3D image displayed on the surface corresponding to the command when the command is input.

The mobile terminal and its control method according to the present invention provide the following effects.

First, by displaying the 3D image on the transparent display unit, there is an effect that users can watch the 3D image together in front and rear of the mobile terminal.

Second, by inverting and displaying the 3D image displayed on the transparent display unit, a user located in front of or behind the mobile terminal can view a 3D image optimized for the current direction.

Third, by alternately displaying the first 3D image of the original and the second 3D image in which the first 3D image is inverted left and right on the transparent display unit, users located in front and rear of the mobile terminal are optimized in the current direction. It is effective to watch 3D video.

Fourth, by displaying the first 3D image of the original and the second 3D image of the first 3D image inverted left and right on the screen of the transparent display unit, users located in front and rear of the mobile terminal are optimized in the current direction There is an effect that you can watch the video.

1 is a block diagram illustrating a mobile terminal according to an embodiment of the present invention.
2 is a conceptual diagram for explaining the principle of binocular disparity.
3 is a conceptual diagram for explaining a sense of distance and 3D depth due to binocular parallax.
4 is a conceptual diagram illustrating a method of implementing a 3D image in a transparent display that may be applied to embodiments of the present invention.
5 is a front perspective view of an example of a mobile terminal according to the present invention;
6 is a rear perspective view of the mobile terminal illustrated in FIG. 5.
7 is a flowchart of a first embodiment illustrating a process of displaying a 3D image on a transparent display unit according to the present invention.
8 is a screen state diagram of the first-first embodiment illustrating a process of displaying a 3D image on a transparent display unit according to the present invention.
9 and 10 are diagrams illustrating screens of Embodiments 1-2 illustrating a process of displaying a 3D image on a transparent display unit according to the present invention.
11 is a screen state diagram of the embodiment 1-3 showing a process of displaying a 3D image on a transparent display unit according to the present invention.
12 and 13 are screen diagrams illustrating Embodiments 1-4 showing a process of displaying a 3D image on a transparent display unit according to the present invention.
14 and 15 are screen diagrams of Embodiments 1-5 showing a process of displaying a 3D image on a transparent display unit according to the present invention.
16 is a flowchart of a second embodiment illustrating a process of displaying a 3D image on a transparent display unit according to the present invention.
17 and 18 are screen diagrams of a second embodiment illustrating a process of displaying a 3D image on a transparent display unit according to the present invention.
19 is a flowchart of a third embodiment illustrating a process of displaying a 3D image on a transparent display unit according to the present invention.
20 is a screen diagram of a third embodiment showing a process of displaying a 3D image on a transparent display unit according to the present invention.
21 is a flowchart of a fourth embodiment illustrating a process of displaying a 3D image on a transparent display unit according to the present invention.
22 is a screen diagram illustrating a fourth embodiment showing a process of displaying a 3D image on a transparent display unit according to the present invention.

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

The suffixes "module" and "unit" for the components used in the following description are merely given in consideration of ease of preparation of the present specification, and do not give particular meanings or roles by themselves. Therefore, it should be noted that the "module" and "unit" may be used interchangeably with each other.

The mobile terminal according to the present invention can be implemented in various forms. For example, the mobile terminal described in the present specification is a mobile terminal capable of receiving a 3D stereoscopic broadcast signal, and includes a smart phone, a personal digital assistant (PDA), a portable multimedia player (PMP), a navigation device, a notebook computer, and the like. , PC, etc.

Hereinafter, a mobile terminal according to the present invention will be described in detail with reference to FIG. 1.

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

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

Hereinafter, the components will be described in order.

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

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

Meanwhile, 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 be present as broadcast programming information such as an electronic program guide (EPG) of digital multimedia broadcasting (DMB) or an electronic service guide (ESG) of digital video broadcast-handheld (DVB-H).

The broadcast receiving unit 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-DV-H (DVB-H). Handheld), DVB-CBMS, OMA-BCAST, ISDB-T (Integrated Services Digital Broadcast-Terrestrial) can be used to receive digital broadcast signals. Of course, the broadcast receiving module 111 may be adapted to other broadcasting systems as well as the digital broadcasting system described above.

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. According to the current technology, the GPS module 115 calculates distance information and accurate time information from three or more satellites, and then applies trigonometry to the calculated information to obtain a three-dimensional string of latitude, longitude, The location information can be accurately calculated. Currently, a method of calculating position and time information using three satellites and correcting the error of the calculated position and time information using another satellite is widely used. In addition, the GPS module 115 can calculate speed information by continuously calculating the current position in real time.

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 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. [

At this time, two or more cameras 121 may be provided according to the use environment.

For example, the camera 121 may include first and second cameras 121a and 121b for capturing 3D images on the rear surface 151d of the transparent display unit 151 of the mobile terminal 100. The third camera 121c may be provided on the front surface 151c of the transparent display unit 151 of the mobile terminal 100 for self-photographing of the user.

In this case, the first camera 121a may be for photographing a left eye image, which is a source image of a 3D image, and the second camera 121b may be for photographing a right eye image.

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

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

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

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 transparent display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, when the mobile terminal 100 is in a call mode, the mobile terminal 100 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.

In addition, according to the present invention, the 3D image displayed on the display area 151c (hereinafter, referred to as 'front') of the transparent display unit 151 is an area in which the display direction is opposite to the display area, that is, the opposite area ( 151d; hereinafter referred to as 'back'.

That is, the user may see an object located behind the body of the mobile terminal 100 through an area occupied by the transparent display unit 151 of the body of the mobile terminal 100.

In this case, when the user views the 3D image on the rear surface 151d of the transparent display unit 151, the 3D image displayed on the rear surface 151d is shown to be inverted left and right.

On the other hand, the transparent display unit 151 as described above may be formed to be flexible (flexible), it may be formed using a transparent OLED (TOLED).

According to an implementation form of the mobile terminal 100, two or more transparent display units 151 may exist. For example, the plurality of transparent display units may be spaced apart or integrally disposed on one surface of the mobile terminal 100, or may be disposed on different surfaces.

In addition, when the transparent 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 transparent display unit 151 Can be used as an input device in addition to the output 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 pressure applied to a specific portion of the display unit 151 or capacitance generated at a specific portion of the display unit 151 into an electrical input signal. The touch sensor may be configured to detect not only the touched position and area but also the pressure at the touch.

When there is a touch input to the touch sensor, the corresponding signal (s) is sent to a touch controller (not shown). 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 touch sensor according to the present invention may be provided on the front surface 151c and the rear surface 151d of the transparent display unit 151, respectively.

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 141 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 detected proximity touch operation and the proximity touch pattern may be output on the touch screen.

Meanwhile, the proximity sensor 151 according to the present invention may be provided on the front surface 151c and the rear surface 151d of the transparent display unit 151, respectively.

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 module 153 outputs a signal for notifying 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 module 153 may output a signal for notifying the occurrence of an event in a form other than a video signal or an audio signal, for example, vibration. Since the video signal or the audio signal may be output through the display unit 151 or the audio output module 152, in this case, the display unit 151 and the audio output module 152 are a kind of alarm module 153. May be classified.

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 is a pin array that vertically moves with respect to the contact skin surface, the jetting force or suction force of the air through the injection or inlet, the grazing to the skin surface, the contact of the electrode, the electrostatic force, and the like. Various haptic effects, such as an effect and the effect of reproducing a sense of cold using the element which can endotherm and generate | occur | produce heat, can be produced.

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. At least two haptic modules 154 may be provided according to the configuration 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 identical to an image displayed on the display unit 151 according to a control signal of the controller 180. At least some of the other images may be displayed on an external screen or wall.

In detail, the projector module 155 may generate a light source (not shown) for generating light (for example, laser light) for outputting the image to the outside, and generate an image for output to the outside using the light generated by the light source. And an image generating means (not shown), and a lens (not shown) for expanding and outputting the image to the outside at a predetermined focal length. 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 in the longitudinal direction on the side, front or back 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 160 may store a program for processing and controlling the controller 180, and stores input / output data (for example, a phone book, a message, an audio, a still image, an e-book, a video, etc.). You can also perform a function for temporary storage. The memory unit 160 may also store the frequency of use of each of the data (eg, each telephone number, each message, the frequency of use of each multimedia) and the importance. 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.

In addition, the memory 160 stores 3D images. The 3D images are obtained from the outside through the wireless communication unit 110, or are stored in the memory 160 in advance, or the left and right eye images input through the first and second cameras 121a and 121b. It may be generated using.

As described above, the memory 160 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, an SD or XD memory). Etc.), random access memory (RAM), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read-only memory (EPEROM), programmable read-only memory (PROM), At least one type of storage medium may include a magnetic memory, a magnetic disk, and an optical disk. The mobile terminal 100 may operate in association with a web storage that performs a storage function of the memory 160 on the Internet.

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

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

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

The controller 180 typically controls the overall operation of the mobile terminal 100. 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.

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

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

According to the software implementation, embodiments such as the procedures and functions described herein may be implemented as separate software modules. Each of the software modules may perform one or more 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 may be stored in the memory 160 and executed by the controller 180.

Hereinafter, the content of the 3D image displayed on the transparent display unit 151 according to the present invention will be described.

Stereoscopic images that may be implemented on the transparent 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 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. 3.

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

In FIG. 2, it is assumed that the cube 31 is viewed with the naked eye in front of the eye level. In this case, the left eye planar image 32 is seen in which only three surfaces of the top, front, and left sides of the hexahedron 31 are visible. In addition, as the right eye, the right eye planar image 33 showing only three surfaces of the top, front, and right sides of the cube 31 is visible.

If the left eye plane image 32 is reached in the left eye and the right eye plane image 33 is reached in the right eye, even if the object is not actually an object in front of the eye, the person may feel as if the person actually sees the cube 31.

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 3D depth due to binocular disparity will be described with reference to FIG. 4.

3 is a conceptual diagram for explaining a sense of distance and 3D depth due to binocular parallax.

Referring to FIG. 3, when the hexahedron 40 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 40 at a d2 distance, The difference is also great. In addition, the degree of three-dimensional feeling that a person feels when viewing the cube 40 at a distance d1 is greater than when the cube 40 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 stereoscopic dimensions can be quantified to 3D depth or 3D level.

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.

4 is a conceptual diagram illustrating a method of implementing a 3D image in a transparent display that may be applied to embodiments of the present invention.

The structure of the view barrier type transparent display unit 151 for displaying a 3D image may have a configuration in which a transparent switch liquid crystal 151b is combined with a general transparent display device 151a. By using the transparent switch liquid crystal 151b to operate the transparent optical parallax barrier 50 as shown in Figure 4 (a) it can be separated so that different light reaches the left and right eyes by controlling the traveling direction of the light. Therefore, when the image combining the right eye image and the left eye image is displayed on the transparent display device 151a, the user's point of view of the image corresponding to each eye is felt as if displayed in three dimensions.

In addition, as shown in (b) of FIG. 4, the transparent parallax barrier 50 by the transparent switch liquid crystal is electrically controlled so that all of the light is transmitted, thereby eliminating the separation of the light by the transparent parallax barrier, thereby eliminating the same image in the left and right eyes. You can also make this visible. In this case, the same function as that of the general display unit may be performed.

In FIG. 4, the transparent parallax barrier is illustrated to move in parallel in one axial direction. However, the present invention is not limited thereto, and a parallax barrier capable of parallel movement in two or more axial directions according to a control signal of the controller 180 is provided. Can be used.

2) Lens refraction method

The lens refraction method is a method of using a lenticular screen provided between the transparent display unit 151 and both eyes so that different images of both eyes are reached by refracting the light traveling direction through the lenses on the lenticular screen. That's how.

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

As a type of glasses, the right eye image and the left eye image are alternately displayed at predetermined intervals through the transparent display unit 151, and the user's glasses close the shutter in the opposite direction when the image in the corresponding direction is displayed. This is how the image reaches the eye in that direction. 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.

It is assumed that a mobile terminal according to an embodiment of the present invention described below can provide a 3D image to a user through the transparent display unit 151 through any one of the above-described methods.

However, since the principle of the 3D image described above with reference to FIGS. 3 and 4 is a situation that assumes a three-dimensional object, the shape of the object is different in the left eye image and the right eye image. However, in the case of a planar object instead of a three-dimensional object, the shape of the object is the same in the left eye image and the right eye image. However, if the position where the object is arranged in each image is different, the user may feel the perspective of the object. In the present specification, for the sake of understanding, it is assumed that the stereoscopic image appearing below is a plane object. Of course, it is apparent that the present invention can be applied to a three-dimensional object.

5 is a front perspective view of a mobile terminal according to an embodiment of the present invention;

Referring to FIG. 5, the case forming the exterior of the mobile terminal 100 is formed by the first case 100A-1 and the second case 100A-2. The first case 100A-1 and the second case 100A-2 are disposed on both sides of the transparent display unit 151 to support the transparent display unit 151. Various electronic components are built into the first case 100A-1 and the second case 100A-2.

Such cases may be formed by injecting synthetic resin, or may be formed to have a metal material such as stainless steel (STS) or titanium (Ti).

The first sound output module 153a and the third camera 121c may be disposed in the main body, specifically, the first case 100A-1. In addition, the user input unit 130a and the microphone 123 may be disposed in the second case 100A-2. The transparent display unit 151 is disposed between the first case 100A-1 and the second case 100A-2. The transparent display unit 151 includes a front surface 151c on which a 3D image is displayed as a true display area. On the other hand, the 3D image displayed on the front surface 151c due to the characteristics of the transparent display unit 151 is displayed inverted left and right on the rear surface 151d, which is the opposite surface of the front surface 151c.

The transparent display unit 151 includes a liquid crystal display (LCD), transparent organic light emitting diodes (TOLED), and the like, which visually express information. In addition, the transparent display unit 151 may be configured such that the touch pad and the proximity sensor 141 overlap each other in a layer structure, so that the transparent display unit 151 may operate as a touch screen to input information by a user's touch. have.

The first sound output module 153a may be implemented in the form of a receiver or a speaker. The third camera 121c may be implemented to be suitable for capturing an image or a video of a user or the like. The microphone 123 may be implemented in a form suitable for receiving a user's voice, guitar sound, and the like.

The manipulating portion 130a may be adopted in any manner as long as the user is operating while giving a tactile feeling.

For example, the user input unit 130 may be implemented as a dome switch or a touch pad that may receive a command or information by a user's push or touch operation, or a wheel or jog method that rotates a key, or a manipulation method such as a joystick. Or the like. In functional terms, for inputting commands such as start, end, call, etc., for inputting a selection of an operation mode, etc., a hot-key for activating a special function in the mobile terminal 100, and the like. It can be used in various ways.

6 is a rear perspective view of the mobile terminal shown in FIG. 5.

Referring to FIG. 3, first and second cameras 121a and 121b for capturing 3D images may be mounted on a front surface of the first case 100A-1, and on the side of the first case 100A-1. The interface unit 170 may be disposed.

The first and second cameras 121a and 121b may be disposed at straight positions with each other within a range not exceeding 6.0 to 6.5 cm, which is a distance between the eyes of the user.

In this case, the first and second cameras 121a and 121b may capture a general 2D image in addition to the 3D image function. Although not shown, a mirror and a flash may be further formed around the first and second cameras 121a and 121b.

The flash shines toward the subject when the subject is photographed by the first and second cameras 121a and 121b. The mirror allows a user to see his / her own face or the like when the user wants to self-photograph himself / herself using the first and second cameras 121a and 121b.

Meanwhile, the first and second cameras 121a and 121b may be cameras having a photographing direction substantially opposite to that of the third camera 121c and having the same or different pixels as the third camera 121c.

In addition, a second sound output module (not shown) may be further disposed in the second case 100A-2. The second sound output module may implement a stereo function together with the first sound output module 153a and may be used for a call in the speakerphone mode.

In addition, an antenna (not shown) for receiving a broadcast signal may be disposed on one side of the second case 100A-2 in addition to an antenna for a call. The antenna may be installed to be withdrawn from the second case 100A-2.

The interface unit 170 serves as a path for allowing the mobile terminal 100 to exchange data with an external device. For example, the interface unit 170 may be at least one of a wired or wireless connection terminal for connecting to the earphone, a port for short range communication, or a power supply terminal for supplying power to the mobile terminal 100. have. The interface unit 170 may be a card socket that accommodates an external card such as a subscriber identification module (SIM) or a user identity module (UIM) and a memory card for storing information.

In addition, a power supply unit 190 for supplying power to the portable terminal is mounted at the bottom of the second case 100A-2. The power supply unit 190 is, for example, a rechargeable battery, and may be detachably coupled to the second case 100A-2 for charging.

Hereinafter, in the transparent display unit 151, the display area of the transparent display unit 151 is described as the front surface 151c, and the 3D image displayed on the front surface 151c is inverted left and right by the characteristic of the transparent display unit 151. An area in which the display direction is opposite to the display direction of the front surface 151c will be described as the rear surface 151d.

Hereinafter, the 3D image control process according to the present invention will be described in detail with reference to FIGS. 7 to 22.

[First Embodiment]

A first embodiment of the present invention relates to a process of displaying a 3D image on the transparent display unit, and inverting and displaying the 3D image displayed on any one of front and rear surfaces of the transparent display unit.

Hereinafter, a first embodiment of the present invention will be described in detail with reference to FIGS. 7 to 15.

7 is a flowchart of a first embodiment illustrating a process of displaying a 3D image on a transparent display unit according to the present invention.

8 to 15 are screen diagrams of a first embodiment illustrating a process of displaying a 3D image on a transparent display unit according to the present invention.

7 to 15, when the 3D image to be displayed from the user is selected through the user input unit 130 or the touch screen 151, the controller 180 displays the 3D image on the transparent display unit 151. [S71].

In this case, the 3D image displayed on the transparent display unit 151 may be a 3D image previously stored in the memory 160. The 3D image displayed on the transparent display unit 151 may be an image generated based on left and right eye images captured by the first and second cameras 121a and 121b.

Also, the 3D image is displayed on the front surface 300A and the rear surface 300B of the transparent display unit 151, and the 3D image displayed on the rear surface 300B is compared with the 3D image displayed on the front surface 300A. Left and right reversed.

The controller 180 detects whether a command for inverting left and right of the 3D image displayed on one of the front surface 300A and the rear surface 300B of the transparent display unit 151 is input while the 3D image is displayed. [S72].

The description according to the left and right inversion command of step S72 will be described later in detail with reference to FIGS. 9 to 13.

When the left and right inversion command is input [S73], the controller 180 left and right the 3D image displayed on the surface corresponding to the input left and right inversion command of the front and rear surfaces 300A and 300B of the transparent display unit 151. The display is reversed [S74].

Hereinafter, the first embodiment of the present invention will be described in more detail with reference to FIGS. 8 to 15.

Example 1-1

In the embodiment 1-1 of the present invention, when a 3D image is displayed on the transparent display unit 151, information indicating respective surfaces is displayed on the front surface 300A and the rear surface 300B of the transparent display unit 151. By displaying, the present invention relates to a process of allowing the user to know whether the face he is currently viewing is the front face 300A or the back face 300B.

Hereinafter, with reference to Fig. 8, the first-first embodiment of the present invention will be described in detail.

8 is a screen state diagram of the first-first embodiment illustrating a process of displaying a 3D image on a transparent display unit according to the present invention.

As shown in FIG. 8, when a 3D image is displayed on the transparent display unit 151, the controller 180 displays the front surface 300A and the rear surface (A) on the front surface 300A of the transparent display unit 151. First and second information 310A and 310B, which respectively indicate 300B, are displayed.

In this case, the first and second information 310A and 310B are displayed in an area facing each other on the transparent display unit 151, and the second information 310B is inverted left and right as compared to the first information 310A. Is displayed.

As described above, the first and second information 310A and 310B representing the front surface 300A and the rear surface 300B are displayed, and the second information 310B is displayed to be inverted left and right, thereby displaying the transparent display unit ( Both the user viewing the front surface 300A of 151 and the user viewing the rear surface 300B can know what side they are currently viewing.

For example, in FIG. 8A, the first and second information 310A and 310B are names indicating “front” and “back”, and the first information 310A based on the front surface 300A. The second information 300B is displayed in a state in which the second information 300B is inverted from the left and the right.

In addition, in FIG. 8B, the first information 300A is displayed in a state in which the first information 300A is inverted from the left and right sides relative to the second information 310B based on the rear surface 300B.

Example 1-2

In the embodiment 1-2 of the present invention, when the front surface 300A or the rear surface 300B of the transparent display unit 151 is touched while the 3D image is displayed on the transparent display unit 151, the contact is performed. The present invention relates to a process of inverting left and right sides of a touched surface.

Hereinafter, with reference to FIG. 9 and FIG. 10, embodiment 1-2 of the present invention will be described in detail.

9 and 10 are diagrams illustrating screens of Embodiments 1-2 illustrating a process of displaying a 3D image on a transparent display unit according to the present invention.

First, as illustrated in FIG. 9A, the controller 180 contacts the front surface 300A of the transparent display unit 151 while displaying a 3D image on the transparent display unit 151. When touched, as shown in FIG. 9B, the 3D image displayed on the front surface 300A is inverted and displayed, and the 3D image displayed on the front surface 300A on the front surface 300A is inverted. The third information 320A indicating that the information has been displayed is displayed.

That is, when a user first views a 3D image from the front surface 300A of the transparent display unit 151 and then needs to watch the 3D image from the rear surface 300B of the transparent display unit 151, the The 3D image displayed on the front surface 300A may be inverted left and right, and the rear surface 300B may view a 3D image having the same state as the 3D image originally displayed on the front surface 300A.

In addition, as shown in FIG. 10A, the controller 180 is in contact with the rear surface 300B of the transparent display unit 151 while displaying a 3D image on the transparent display unit 151. When touched, as shown in FIG. 10B, the 3D image displayed on the rear surface 300B is reversed and displayed, and the 3D image displayed on the rear surface 300B on the rear surface 300B is reversed left and right. The fourth information 320B indicating that the information has been displayed is displayed.

That is, when the user views the 3D image on the rear surface 300B of the first transparent display unit 151, the 3D image displayed on the rear surface 300B is displayed to be inverted left and right compared to the 3D image displayed on the front surface 300A. You cannot watch in normal condition.

Therefore, the user can invert the left and right 3D image displayed on the rear surface 300B to watch the 3D image in a normal state on the rear surface 300B.

Example 1-3

In the embodiment 1-3 of the present invention, when the front 300A or the rear 300B of the transparent display unit 151 is in close proximity while the 3D image is displayed on the transparent display unit 151, the contact is performed. The present invention relates to a process of inverting left and right sides of a touched surface.

Hereinafter, an embodiment 1-3 of the present invention will be described in detail with reference to FIG. 11.

11 is a screen state diagram of the embodiment 1-3 showing a process of displaying a 3D image on a transparent display unit according to the present invention.

First, although not shown in FIG. 11, when the front surface 300A of the transparent display unit 151 is in close touch with the controller 180 displaying a 3D image on the transparent display unit 151, the front surface of the transparent display unit 151 may be touched. The 3D image displayed at 300A is inverted and displayed.

Subsequently, as illustrated in FIG. 11A, the controller 180 displays a 3D image on the transparent display unit 151, and then displays the rear surface 300B of the transparent display unit 151. When the proximity touch is performed, as shown in FIG. 11B, the 3D image displayed on the rear surface 300B is inverted and displayed.

Example 1-4

In the embodiment 1-4 of the present invention, in the state where a 3D image is displayed on the transparent display unit 151, one of the front surface 300A and the rear surface 300B on the transparent display unit 151 The present invention relates to a process of displaying a UI for right and left inverting the 3D image displayed on the screen, and inverting the 3D image displayed on the surface selected through the UI when one surface is selected through the UI.

12 and 13, the first to fourth embodiments of the present invention will be described in detail.

12 and 13 are screen diagrams illustrating Embodiments 1-4 showing a process of displaying a 3D image on a transparent display unit according to the present invention.

First, as shown in FIG. 12A, when the 3D image is displayed on the transparent display unit 151, the controller 180 displays the front surface on the front surface 300A of the transparent display unit 151. The first and second UIs 330A and 330B for selecting one of the surfaces 300A and 300B are respectively displayed.

In this case, the first and second UIs 330A and 330B are displayed in an area facing each other on the transparent display unit 151, and the second UI 330B is inverted left and right as compared to the first UI 330A. Is displayed.

As described above, by displaying the second UI 330B in a left and right reversed state compared to the first UI 330A, as illustrated in FIG. 12B, the user may display the second UI on the rear surface 300B. One surface of the front surface 300A and the rear surface 300B may be selected using 330B.

Next, as shown in FIG. 13A, the controller 180 displays the second UI 330B on the rear surface 300B, and as shown in FIG. 13B. When a command for inverting the left and right of the 3D image displayed on the rear surface 300B is input through the second UI 330B, as shown in FIG. 13C, the 3D displayed on the rear surface 300B. The image is displayed reversed left and right.

Example 1-5

Embodiment 1-5 of the present invention relates to a process of inverting and displaying the text when the text such as caption is to be displayed in the 3D image displayed on the transparent display unit 151.

Hereinafter, the first to fifth embodiments of the present invention will be described in detail with reference to FIGS. 14 and 15.

14 and 15 are screen diagrams of Embodiments 1-5 showing a process of displaying a 3D image on a transparent display unit according to the present invention.

First, as shown in FIG. 14A, the controller 180 displays a text 340 in a frame of a 3D image to be displayed in the following order while the 3D image is displayed on the transparent display unit 151. If included, as illustrated in FIGS. 14B and 14C, the text 340 may be inverted and displayed.

That is, in FIG. 14A, when the text 340 is displayed on the rear surface 300B of the transparent display unit 151, the text 340 displayed on the front surface 300A is displayed to be reversed left and right. Because of this, when the user views the text 340 from the rear surface 300B, there is a problem that is difficult to recognize.

Therefore, when a command for inverting the left and right of the text 340 is input from the user, the controller 180 inverts and displays the text 340.

In this case, as illustrated in FIG. 14B, the controller 180 may invert and display both the 3D image and the text 340 displayed on the rear surface 300B together.

In addition, as illustrated in FIG. 14C, the controller 180 may invert and display only the text 340 among the 3D image and the text 340 displayed on the rear surface 300B.

Next, as illustrated in FIGS. 15B and 15C, if the text is to be displayed, the controller 180 may invert left and right inverted first text 340A of the second text 340B. ) And display the first and second texts 340A and 340B together on the transparent display unit 151.

As described above, by displaying both the first text 340A of the original and the second text 340B in which the first text 340A is inverted left and right, the user may display the transparent display unit 151 on both sides 300A and 300B. You can see text such as subtitles in.

In this case, as shown in FIG. 15B, the controller 180 inverts the 3D image displayed on the rear surface 300B from side to side, the left and right inverted 3D image, and the first and second texts ( 340A, 340B can be displayed together.

In addition, as illustrated in FIG. 15C, the controller 180 may display 3D images and first and second texts 340A and 340B that are not reversed left and right on the rear surface 300B. have.

In the above, the first embodiment of the present invention has been described in detail with reference to FIGS. 7 to 15.

Hereinafter, a second embodiment of the present invention will be described in detail with reference to FIGS. 16 to 18.

[Second Embodiment]

According to a second exemplary embodiment of the present invention, when displaying a 3D image on the transparent display unit, the first 3D image of the original and the second 3D image of which the first 3D image is inverted left and right are alternately displayed. The present invention relates to a process of displaying an optimized 3D image on the front and rear surfaces of the transparent display unit.

Hereinafter, a second embodiment of the present invention will be described in detail with reference to FIGS. 16 to 18.

16 is a flowchart of a second embodiment illustrating a process of displaying a 3D image on a transparent display unit according to the present invention.

17 and 18 are screen diagrams of a second embodiment illustrating a process of displaying a 3D image on a transparent display unit according to the present invention.

16 to 18, when a 3D image to be displayed from the user is selected through the user input unit 130 or the touch screen 151, the controller 180 displays the 3D image on the transparent display unit 151. [S161].

In this case, the 3D image displayed on the transparent display unit 151 may be a 3D image previously stored in the memory 160. The 3D image displayed on the transparent display unit 151 may be an image generated based on left and right eye images captured by the first and second cameras 121a and 121b.

Also, the 3D image is displayed on the front surface 300A and the rear surface 300B of the transparent display unit 151, and the 3D image displayed on the rear surface 300B is compared with the 3D image displayed on the front surface 300A. Left and right reversed.

When the 3D image is displayed, the controller 180 detects whether a command for alternate display is input to the front 300A only and the rear 300B only [S162].

When the alternating display command is input [S163], the controller 180 alternately displays an original first 3D image and a second image in which the first 3D image is inverted left and right [S164] (FIG. 18). (a) and (b)].

That is, the controller 180 alternately displays first frames of the original included in the first 3D image and second frames in which the first frames are inverted left and right.

Referring to FIG. 17, the controller 180 sequentially displays the first-first frames for the left eye image and the first-second frames for the right eye image with a preset time difference, thereby displaying the original on the transparent display unit 151. Implement 3D video.

At this time, in the second embodiment of the present invention, the 2-1 frames and the 1-2 frames in which the 1-1 frames are inverted left and right between the 1-1 frames and the 1-2 frames are removed. The 2-2 frames inverted left and right are alternately displayed.

As described above, although a slight display delay occurs in the second embodiment of the present invention, the transparent display unit is alternately displayed by alternately displaying the first 3D image of the original and the second image in which the first 3D image is inverted left and right. 3D images can be simultaneously viewed on both surfaces 300A and 300B of the unit 151.

Meanwhile, although not shown in FIGS. 16 to 18, the controller 180 maintains that the first 3D image is entirely dedicated during the period in which the first 3D image of the original is displayed, as in the first-first embodiment described above. Information indicating that the second 3D image is dedicated to the rear surface may be displayed while the second 3D image in which the first 3D image is inverted left and right is displayed.

In addition, although not shown in FIGS. 16 to 18, the controller 180 may include an original included in the first 3D image during a period in which the first 3D image of the original is displayed, as in the above-described embodiment 1-5. The first text of the second text may be displayed, and the second text of which the first text is inverted left and right may be displayed while the second 3D image of which the first 3D image is inverted left and right is displayed.

In the above, the second embodiment of the present invention has been described in detail with reference to FIGS. 16 to 18.

Hereinafter, a third embodiment of the present invention will be described in detail with reference to FIGS. 19 and 20.

Third Embodiment

According to a third embodiment of the present invention, a screen of the transparent display unit is divided into first and second regions, an original first 3D image is displayed on the first region, and the first 3D image is displayed on the second region. And a process of displaying the second 3D image inverted left and right.

Hereinafter, a third embodiment of the present invention will be described in detail with reference to FIGS. 19 and 20.

19 is a flowchart of a third embodiment illustrating a process of displaying a 3D image on a transparent display unit according to the present invention.

20 is a screen diagram of a third embodiment showing a process of displaying a 3D image on a transparent display unit according to the present invention.

19 and 20, when a 3D image to be displayed from a user is selected through the user input unit 130 or the touch screen 151, the controller 180 displays the 3D image on the transparent display unit 151. [S191].

The controller 180 detects whether a command for dividing the screen of the transparent display unit 151 into two or more first and second regions 410a and 410b is input while the 3D image is displayed [S192].

When the division command is input [S193], the controller 180 divides the screen of the transparent display unit 151 into two or more first and second regions 410a and 410b [S194], and the divided first An original first 3D image is displayed in the area 410a [S195], and a second 3D image in which the first 3D image is inverted left and right in the divided second area 410b [S196] [Fig. 20]. ].

As described above, in the third exemplary embodiment of the present invention, the transparent display unit is displayed by displaying the first 3D image of the original and the second 3D image of which the first 3D image is inverted left and right on one screen of the transparent display unit 151. 3D images can be simultaneously viewed on both surfaces 300A and 300B of the unit 151.

At this time, as shown in FIG. 20, when the distance d between the first and second regions 410a and 410b is close to each other, the first 3D displayed on the first and second regions 410a and 410b. Interference may occur in the image and the second 3D image. Therefore, the interval d between the first and second regions 410a and 410b may be changed according to a user's setting.

In addition, although not shown in FIGS. 19 and 20, the controller 180 may display information indicating that the first area 410a is a front-only 3D image in the first area 410a, and the second area 410a. Information indicating that the second area 410b is a rear-only 3D image may be displayed in the area 410b.

Also, although not shown in FIGS. 19 and 20, the controller 180 may display the first text of the original included in the first 3D image in the first area 410a, and the second area 410b. The second text in which the first text is inverted left and right may be displayed in the display.

The third embodiment of the present invention has been described above in detail with reference to FIGS. 19 and 20.

Hereinafter, a fourth embodiment of the present invention will be described in detail with reference to FIGS. 21 and 22.

[Fourth Embodiment]

The fourth embodiment of the present invention allocates the first and second regions on the transparent display unit in a situation where a 3D image is displayed on an external display device, and the first and second regions as shown in FIGS. By alternately blocking the light transmission of the first and second areas, the present invention relates to a process of using a mobile terminal having the transparent display as a substitute for 3D polarizing glasses.

Hereinafter, a fourth embodiment according to the present invention will be described in detail with reference to FIGS. 21 and 22.

21 is a flowchart of a fourth embodiment illustrating a process of displaying a 3D image on a transparent display unit according to the present invention.

22 is a screen diagram illustrating a fourth embodiment showing a process of displaying a 3D image on a transparent display unit according to the present invention.

21 and 22, the controller 180 allocates the first and second regions 420a and 420b for the active shutter role to the transparent display unit 151 [S211].

In this case, as shown in FIG. 22, the first and second regions 420a and 420b may be images 420 in the shape of 3D polarized glasses.

That is, portions corresponding to the left and right lenses of the 3D polarizing glasses image 420 may be the first and second regions 420a and 420b.

The left and right eye images of the 3D image 510 displayed on the external display apparatus 500 are alternately transmitted to the first and second regions 420a and 420b.

Next, when a period for alternately blocking the external 3D image 510 transmitted through the first and second regions 420a and 420b is set [S212], the controller 180 may set the first and second regions. The external 3D image 510 transmitted through the two regions 420a and 420b is alternately blocked at the set period [S213].

That is, as shown in (a) of FIG. 22, the controller 180 controls that the left eye image of the 3D image 510 in which the external display is displayed on the device 500 includes the first and second regions 420a and 420b. ), The second region 420b on the right side is blocked at the timing of transmission.

In addition, as shown in FIG. 22B, the controller 180 is configured to display the right eye images of the 3D image 510 in which the external display is displayed on the device 500, in the first and second regions 420a and 420b. ), The transparent display unit 151 may be used as a substitute for 3D polarizing glasses by blocking the first region 420a on the left side.

It will be apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.

The present invention described above can be embodied as computer-readable codes on a medium on which a program is recorded. The computer readable medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of computer-readable media include ROM, RAM, CD-ROM, magnetic tape, floppy disks, optical data storage devices, and the like, which are also implemented in the form of carrier waves (eg, transmission over the Internet). It also includes. Also, the computer may include a control unit 180 of the terminal.

Accordingly, the above detailed description should not be construed as limiting in all aspects and should be considered as illustrative. The scope of the invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the invention are included in the scope of the invention.

The above-described mobile terminal and its control method are not limited to the configuration and method of the above-described embodiments, but the embodiments may be modified such that all or some of the embodiments are selectively And may be configured in combination.

100: mobile terminal 110: wireless communication unit
111: broadcast receiver 112: mobile communication module
113 wireless Internet module 114 short-range communication module
115: Position information module 120: A / V input section
121: camera 122: microphone
130: user input unit 140: sensing unit
141: proximity sensor 150: output section
151: transparent display unit 152: sound output module
153: Alarm module 154: Haptic module
155: Projector Module 160: Memory
170: interface unit 180: control unit
181: multimedia module 190: power supply

Claims (15)

Transparent display unit for displaying a three-dimensional (hereinafter referred to as '3D') image on the front and back; And
And a controller configured to control an operation related to 3D images displayed on front and rear surfaces of the transparent display unit.
The control unit,
When a command for inverting the left and right of the 3D image displayed on any one of the front surface and the rear surface is input, the mobile terminal, characterized in that the left and right reversed display of the 3D image displayed on the surface corresponding to the command. The method according to claim 1,
A first camera for photographing a left eye image; And
And a second camera for photographing a right eye image.
The 3D image is generated based on left and right eye images taken by the first and second cameras. The method according to claim 1,
On the front and rear, first and second touch sensors for detecting a touch touch operation are provided, respectively.
The controller, when detecting that the corresponding surface is touched through any one of the first and second touch sensors, inverting the 3D image displayed on the detected surface left and right. The method according to claim 1,
On the front and rear, first and second proximity sensors for detecting a proximity touch operation are provided, respectively.
The controller may invert left and right 3D images displayed on the detected surface when it is detected that the corresponding surface is in close proximity touch through any one of the first and second proximity sensors. The method according to claim 1,
The controller may further display first and second information representing the front and rear surfaces, respectively, on the front surface.
The second information is inverted left and right on the basis of the first information. The method according to claim 1,
The controller may display information indicating a surface on which the left and right inverted 3D images are initially displayed. The method according to claim 1,
If the first text included in the left and right inverted 3D image is to be displayed, the controller generates a second text in which the first text is inverted left and right and displays the first and second text together. Mobile terminal. The method of claim 7, wherein
And the first and second texts are captions associated with the 3D image. The method according to claim 1,
And a user interface (hereinafter, referred to as 'UI') for selecting one of the front and rear surfaces;
The controller may invert left and right 3D image displayed on the surface selected through the UI. 10. The method of claim 9,
The UI is displayed on the front and rear, respectively,
The UI displayed on the rear side of the mobile terminal, characterized in that the left and right inverted UI. The method according to claim 1,
The control unit alternates the first 3D image of the original and the second 3D image of inverting the first 3D image to the left and right sides when an instruction for alternately displaying the 3D image is dedicated to the front side and the rear side only. Mobile terminal, characterized in that the display. 12. The method of claim 11,
The controller may alternately display first frames of the original included in the first 3D image and second frames in which the first frames are inverted left and right. The method of claim 12,
The first frames include first-first frames for left eye images and first-second frames for right eye images that are sequentially displayed with a predetermined time difference,
The second frames include 2-1 frames in which the left eye image frames are inverted left and right, and 2-2 frames in which the left eye images are inverted left and right.
The control unit may alternately display the 2-1 frames and the 2-2 frames between the 1-1 frames and the 1-2 frames. The method according to claim 1,
When the command is input, the controller divides the screen of the transparent display into first and second regions, displays the 3D image in the first region, and inverts the 3D image in the second region. Mobile terminal, characterized in that for displaying. Displaying a 3D image (hereinafter, referred to as '3D') on a transparent display having a front surface and a rear surface;
Detecting whether a command for inverting left and right of the 3D image displayed on one of the front and rear surfaces is input; And
And inverting and displaying left and right 3D images displayed on a surface corresponding to the command when the command is input.

Images