KR101871708B1 - Mobile terminal and method for controlling the same - Google Patents

Abstract

The present invention can selectively control the display size of a preview image input through a camera and turn off pixel driving in remaining areas except for the preview image whose size is adjusted in the screen, And a control method thereof.

Description

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

The present invention relates to a portable terminal and a control method thereof, in which the use of the terminal can be realized by further considering the convenience of the user.

A terminal such as a personal computer, a notebook computer, a mobile phone, or the like can be configured to perform various functions. Examples of such various functions include a data and voice communication function, a function of photographing a video or a moving image through a camera, a voice storage function, a music file playback function through a speaker system, and an image or video display function. Some terminals include additional functions to execute games, and some other terminals are also implemented as multimedia devices. Moreover, recent terminals can receive a broadcast or multicast signal to view a video or television program.

In general, the terminal is movable The mobile terminal can be divided into a mobile terminal and a stationary terminal depending on whether the mobile terminal is portable or not, and the mobile terminal can be divided into a handheld terminal and a vehicle mount terminal.

When the preview image input from the camera is displayed, the terminal displays a full-up image on the entire screen, and displays menu icons associated with the photographing function of the camera on the pull-up displayed preview image.

However, when the pull-up display state of the preview image input from the camera continues for a long time, the battery consumption of the terminal increases.

Also, there is a problem in that the preview image displayed on the screen of the current terminal is not adjusted to a desired size on the screen according to the user's operation.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a portable terminal and a control method thereof, in which a user can selectively adjust a display size of a preview image input through a camera.

It is another object of the present invention to provide a portable terminal and a control method thereof that can reduce the consumption of a battery by turning off pixel driving in a remaining area excluding a preview image whose size is adjusted in a screen.

It is still another object of the present invention to provide a portable terminal and a control method thereof for displaying information related to a function of a camera in a remaining area excluding an area where the preview image is displayed on the screen.

It is still another object of the present invention to provide a portable terminal that displays information that notifies an event currently occurring in a region other than an area where the preview image is displayed on the screen, and a control method thereof.

According to an aspect of the present invention, there is provided a portable terminal including: at least one camera for capturing an external subject; A display unit for displaying a preview image input from the camera on the entire screen; The preview image is displayed in a reduced size in the first area when the first area having a size smaller than the screen is designated on the screen and information related to the function of the camera is displayed in the remaining unspecified second area And a control unit.

According to another aspect of the present invention, there is provided a method of controlling a mobile terminal, including: displaying a preview image input from a camera on an entire screen; Designating a first area smaller than the screen on the screen; Narrowing down the preview image within the designated first area; And displaying information related to the function of the camera in the remaining unspecified second area on the screen.

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

First, the user can adjust the display size of the preview image displayed on the screen to a desired size.

Second, the driving of the pixels in the remaining area except for the preview image whose size is adjusted in the screen is turned off, thereby reducing the consumption of the battery.

Third, information related to the function of the camera is displayed in the remaining area excluding the area where the size of the preview image is displayed on the screen, thereby providing various information to the user on the preview image screen.

Fourth, by displaying information informing the currently generated event in the remaining area except for the area where the size-adjusted preview image is displayed on the screen, it is possible to inform the user of the currently generated event while maintaining the current shooting mode Effect.

1 is a block diagram illustrating a portable terminal according to an embodiment of the present invention.
2A is a perspective view of a portable terminal according to an embodiment of the present invention.
FIG. 2B is a rear perspective view of the portable terminal shown in FIG. 2A.
3 is a conceptual diagram for explaining the principle of binocular disparity.
4 is a conceptual diagram for explaining distance feeling and 3D depth due to binocular parallax.
FIG. 5 is a conceptual diagram illustrating a method of implementing a 3D stereoscopic image in a display unit of a view barrier system applicable to embodiments of the present invention.
6 is a flowchart illustrating a preview image screen control process of the mobile terminal according to the first embodiment of the present invention.
FIGS. 7 to 12 are explanatory diagrams illustrating a preview image screen control process of the portable terminal according to the first embodiment of the present invention.
FIG. 13 is a flowchart illustrating a preview image screen control process of a portable terminal according to a second embodiment of the present invention.
FIG. 14 and FIG. 15 are explanatory views of a second embodiment of a preview image screen control process of a portable terminal according to the present invention.
16 is a flowchart illustrating a preview image screen control process of the mobile terminal according to the third embodiment of the present invention.
17 is a diagram illustrating a preview image screen control process of a mobile terminal according to a third embodiment of the present invention.

Hereinafter, a portable 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 portable 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 be applied to fixed terminals such as a digital TV, a desktop computer, and the like, unless the configuration is applicable only to the portable terminal.

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

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

Hereinafter, the components will be described in order.

The wireless communication unit 110 may include one or more modules that enable wireless communication between the wireless terminal 100 and the wireless communication system or between the wireless terminal 100 and a network in which the wireless 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 broadcast signals and / or broadcast-related information from an external broadcast management server through a broadcast channel.

The broadcast channel may include a satellite channel and a terrestrial channel. 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, an EPG (Electronic Program Guide) of DMB (Digital Multimedia Broadcasting) or an ESG (Electronic Service Guide) 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 A digital broadcasting system such as DVB-CB, OMA-BCAST, or Integrated Services Digital Broadcast-Terrestrial (ISDB-T). 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 refers to a module for wireless Internet access, and may be built in or externally mounted in the mobile terminal 100. WLAN (Wi-Fi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access) and the like can be used as wireless Internet technologies.

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 acquiring the position of the portable terminal, and a representative example thereof is a GPS (Global Position System) 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. At present, a method of calculating position and time information using three satellites and correcting an 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, 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 an image frame such as a still image or moving image obtained by the image sensor in the video communication mode or the photographing mode. The processed image frame 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 depending on the use environment.

For example, the camera 121 may include first and second cameras 121a and 121b for capturing 3D images on the opposite side of the display unit 151 of the mobile terminal 100, A third camera 121c for self-photographing the user may be provided in a part of the surface of the display unit 151 of the terminal 100. [

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

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 receive from the user a signal designating two or more contents among the displayed contents according to the present invention. A signal for designating two or more contents may be received via the touch input, or may be received via the hard key and soft key input.

The user input unit 130 may receive an input from the user for selecting the one or more contents. In addition, an input for generating an icon related to a function that the portable terminal 100 can perform can be received from the user.

The user input unit 130 may include a directional keypad, a keypad, a dome switch, a touchpad (static / static), a jog wheel, a jog switch, and the like.

The sensing unit 140 senses the current state of the portable terminal 100 such as the open / close state of the portable terminal 100, the position of the portable terminal 100, the presence of the user, the orientation of the portable terminal, And generates a sensing signal for controlling the operation of the portable terminal 100. For example, when the portable terminal 100 is in the form of a slide phone, it is possible to sense whether the slide phone is opened or closed. It is also possible to sense whether the battery 190 is powered on, whether the interface unit 170 is connected to an external device, and the like. Meanwhile, the sensing unit 140 may include a proximity sensor 141. The proximity sensor 141 will be described later in relation to the touch screen.

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) the information processed in the portable terminal 100. For example, when the portable terminal is in the call mode, a UI (User Interface) or a GUI (Graphic User Interface) associated with a call is displayed. When the portable terminal 100 is in the video communication mode or the photographing mode, the photographed and / or received image, UI, or GUI is displayed.

In addition, the display unit 151 according to the present invention supports 2D and 3D display modes.

That is, the display unit 151 according to the present invention may have a configuration in which the switch liquid crystal 151b is combined with a general display device 151a as shown in FIG. 5 below. 5 (a), the optical parallax barrier 50 is operated by using the switch liquid crystal 151b to control the traveling direction of the light, so that different lights can be separated from the left and right eyes. Therefore, when a combined image of the right eye image and the left eye image is displayed on the display device 151a, the user can see the image corresponding to each eye and feel as if it is displayed in three-dimensional form.

That is, under the control of the control unit 180, the display unit 151 drives only the display device 151a without driving the switch liquid crystal 151b and the optical parallax barrier 50 in the 2D display mode Performs normal 2D display operation.

The display unit 151 drives the switch liquid crystal 151b and the optical parallax barrier 50 and the display device 151a under the control of the controller 180 to display the display liquid crystal 151b, 151a to perform the 3D display operation.

The 3D display process of the display unit 151 will be described later in detail with reference to FIGS. 3 to 5.

The display unit 151 may be a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED) A flexible display, and a three-dimensional display (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 portable terminal 100. [ For example, in the portable terminal 100, a plurality of display units may be spaced apart from one another or may be disposed integrally with each other, or may be disposed on different surfaces.

(Hereinafter, referred to as a 'touch screen') in which a display unit 151 and a sensor for sensing a touch operation (hereinafter, referred to as 'touch sensor') form a mutual layer structure, It 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 (not shown). The touch controller processes the signal (s) and transmits the corresponding data to the controller 180. Thus, the control unit 180 can know which area of the display unit 151 is touched or the like.

The proximity sensor 141 may be disposed in an inner area of the portable 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 type photoelectric sensor, a direct reflection type photoelectric sensor, a mirror reflection type photoelectric sensor, a high frequency oscillation type proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor. 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 recognizing that the pointer is positioned on the touch screen while the pointer is not in contact with the touch screen is referred to as "proximity touch & The act of actually touching the pointer on the screen is called "contact touch. &Quot; 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 audio 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 mode, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, The sound output module 152 also outputs sound signals related to functions (e.g., call signal reception tones, message reception tones, etc.) performed in the portable 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 portable terminal 100. Examples of events occurring in the portable terminal include receiving a call signal, receiving a message, inputting a key signal, and touch input. 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. In this case, the display unit 151 and the audio output module 152 may be a type of the alarm unit 153. The display unit 151 and the audio output module 152 may be connected to the display unit 151 or the audio output module 152, .

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 the vibration generated by the hit module 154 can be controlled. For example, different vibrations may be synthesized and output or sequentially output.

In addition to the vibration, the haptic module 154 may include a pin arrangement vertically moving with respect to the contact skin surface, a spraying force or a suction force of the air through the injection port or the suction port, a touch on the skin surface, contact with an electrode, And various tactile effects such as an effect of reproducing a cold sensation using an endothermic or exothermic element can be generated.

The haptic module 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 portable 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 on the side surface, the front surface, or the back surface of the portable terminal 100 in the longitudinal direction. It goes without saying that the projector module 155 may be provided at any position of the portable terminal 100 as needed.

The memory 160 may store a program for processing and controlling the controller 180 and may store the input / output data (e.g., a telephone directory, a message, an audio, a still image, an electronic book, History, and the like). The memory 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, etc.) ), A random access memory (RAM), a static random access memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read- A magnetic disk, an optical disk, a memory, a magnetic disk, or an optical disk. The portable 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 portable terminal 100. The interface unit 170 receives data from an external device or receives power from the external device and transmits the data to each component in the portable terminal 100 or allows data in the portable terminal 100 to be transmitted to an 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 usage 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.

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

The controller 180 typically controls the overall operation of the portable 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.

When the display unit 151 is formed of an organic light-emitting diode (OLED) or a TOLED (Transparent OLED), the controller 180 controls the display unit 151, When the preview image is pulled up on the screen of the organic light-emitting diode (OLED) or the TOLED (Transparent OLED) and the size of the preview image is adjusted according to the user's operation, The power consumption of the power source supplied from the power supply unit 190 to the display unit 151 can be reduced by turning off the driving of the pixels in the second area other than the first area in which the preview image is adjusted.

The power supply unit 190 receives external power and internal power under the control of the controller 180 and supplies power necessary for operation of the respective components.

The 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 may be implemented as application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays May be implemented using at least one of a processor, controllers, micro-controllers, microprocessors, and other electronic units for performing other functions. In some cases, The embodiments described may be implemented by the control unit 180 itself.

According to a software implementation, embodiments such as the procedures and functions described herein may be implemented with 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. [

2A is a perspective view of a portable terminal according to an embodiment of the present invention.

The disclosed mobile terminal 100 has a bar-shaped main body. 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 injection molding a synthetic resin, or may be formed to have a metal material such as stainless steel (STS) or titanium (Ti) or the like.

The front body 101 mainly includes a display unit 151, an audio output unit 152, a third camera 121c, user inputs 130/131 and 132, a microphone 122, an interface 170, .

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 unit 130 is operated 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.

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 The touch recognition mode can be activated or deactivated.

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

Referring to FIG. 2B, a third camera 121c may be additionally mounted on the rear surface of the portable terminal body, that is, the rear case 102. The third camera 121c has a photographing direction substantially opposite to that of the first and second cameras 121a and 121b and may be a camera having the same or different pixels as the first and second cameras 121a and 121b have.

A flash 123 and a mirror 124 may be further disposed adjacent to the third camera 121c. The flash 123 illuminates the subject when the subject is photographed by the third camera 121c. The mirror 124 allows the user to illuminate the user's own face or the like when the user intends to take a picture of himself / herself (self-photographing) using the third camera 121c.

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

In addition to the antenna for communication, a broadcast signal receiving antenna 116 may be additionally disposed on the side of the portable terminal body. The antenna 116, which forms part of the broadcast receiving unit 111 (see FIG. 1), may 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 built in the terminal body or may be 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 be of a light transmission type for the display unit 151. [ In this case, if the display unit 151 is configured to output the time information on both sides (i.e., in the directions of both the front and back sides of the mobile terminal), the time information can be recognized through the touch pad 135 do. The information output on both sides may be all controlled by the touch pad 135. [

Meanwhile, the display for exclusive use of the touch pad 135 may be separately installed, so that the touch screen may be disposed in the rear case 102 as well.

The touch pad 135 operates in correlation with the display portion 151 of the front case 101. The touch pad 135 may be disposed parallel to the rear of the display unit 151. The touch pad 135 may have a size equal to or smaller than that of the display unit 151.

Hereinafter, a 3D image control process of a mobile terminal that can be applied to embodiments of the present invention will be described.

The stereoscopic image that can be implemented on the display unit 151 of the portable terminal can be roughly divided into two categories. The criterion for this classification is whether or not different images are provided in both eyes.

First, we describe the first stereoscopic image category.

The first category is monoscopic in that the same image is provided in both eyes, which is advantageous in that it can be implemented as a general display unit. More specifically, the controller 180 arranges a polyhedron generated through one or more points, lines, faces, or a combination thereof on an imaginary three-dimensional space, and displays the image viewed at a specific time on the display unit 151 . 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. This binocular disparity will be described in more detail with reference to Fig.

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

In Fig. 3, it is assumed that the hexahedron 31 is placed on the front face lower than the eye level and viewed with the naked eye. In this case, a left-eye plane image 32 in which only the top, front, and left sides of the hexahedron 31 are visible in the left eye. In addition, a right-eye plane image 33 in which only the top, front, and right sides of the hexahedron 31 are visible in the right eye.

If the left eye plane image 32 is left in the left eye and the right eye plane image 33 is in the right eye, the person can actually feel as if he is looking at the hexahedron 31, even if he or she is not in front of the actual eye.

As a result, in order for the stereoscopic image of the second category to be implemented in the portable terminal, the left eye image and the right eye image, which are viewed at the same time intervals, should be separated from each other through the display unit so as to reach both eyes. Next, 3D depth by binocular parallax will be described with reference to FIG.

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

Referring to FIG. 4, when the hexahedron 40 is viewed at a distance d1 through both eyes, the lateral specific gravity of the image input to each eye is relatively higher than when the hexahedron 40 is viewed at the d2 distance, The difference becomes large. Also, the degree of three-dimensional sensation experienced by a person when viewing the hexahedron 40 at a distance d1 is greater than when viewing the hexahedron 40 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 3D sensibility can be quantified in 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 electronically driving a blocking device provided between a display unit and a binocular to control the traveling direction of light, thereby achieving different images in both eyes.

This will be described with reference to FIG.

FIG. 5 is a conceptual diagram illustrating a method of implementing a 3D stereoscopic image in a display unit of a view barrier system applicable to embodiments of the present invention.

The structure of the display unit 151 of the field barrier type for displaying the 3D stereoscopic image may have a structure in which the switch liquid crystal 151b is combined with the general display device 151a. The optical parallax barrier 50 can be operated by using the switch liquid crystal 151b as shown in FIG. 5A to control the traveling direction of the light so that different lights can be separated from the left and right eyes. When an image in which the right eye image and the left eye image are combined is displayed on the display device 151a, the user can see the image corresponding to each eye and feel as if the eye image is displayed as a three-dimensional object.

In addition, as shown in FIG. 5 (b), the parallax barrier 50 by the switch liquid crystal is electrically controlled so that light is totally transmitted, thereby eliminating the separation of light by the parallax barrier so that the same image can be seen on the left and right eyes It is possible. In this case, the same function as the general display unit can be achieved.

5 illustrates that the parallax barrier moves parallel to one axial direction. However, the present invention is not limited thereto, and a parallax barrier that can move in parallel in two or more axial directions may be used according to the control signal of the controller 180 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.

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

However, since the 3D image principle described above with reference to FIGS. 4 and 5 assumes a three-dimensional object, the shape of the object differs between the left-eye image and the right-eye image. However, in the case of a planar object other than 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 of the object is different in each image, the user can feel the perspective of the object. In the present specification, for the sake of understanding, it is assumed that a stereoscopic image appearing below is a plane object. Obviously, the present invention can also be applied to a three-dimensional object.

Hereinafter, embodiments of a preview image screen control process of the portable terminal according to the present invention will be described in detail with reference to FIG. 6 to FIG.

Embodiments according to the present invention described below can be performed in combination with each other, but the embodiments will be described separately for clarifying the present invention.

First Embodiment

In the first embodiment of the present invention, the preview image input through the camera 121 is pulled up on the screen of the display unit 151, the size of the preview image is adjusted to a desired size by the user, And controlling power consumption of the display unit 151 by controlling the driving of the pixels in the remaining area excluding the area where the size-adjusted preview image is displayed on the display unit 151. [

Hereinafter, the first embodiment of the present invention will be described in detail with reference to Figs. 6 to 12. Fig.

6 is a flowchart illustrating a preview image screen control process of the mobile terminal according to the first embodiment of the present invention.

FIGS. 7 to 12 are explanatory diagrams illustrating a preview image screen control process of the portable terminal according to the first embodiment of the present invention.

6, when the camera photographing menu is selected from the user through the user input unit 130 or the touch screen 151, the controller 180 of the portable terminal 100 drives the camera 121 [S110 , The preview image input through the camera 121 is pulled up on the screen of the touch screen 151 (S120).

At this time, the preview image input from the camera 121 may be a 2D or 3D preview image.

Next, when a specific first area having a size smaller than the screen is specified by the user on the screen displaying the preview image through the user input unit 130 or the touch screen 151 (S130) The preview image is displayed in a reduced size within the designated first area [S140].

1, if the touch-screen type display unit 151 is an OLED or a transparent OLED type, the controller 180 supplies the display unit 151 from the power supply unit 190 to the display unit 151 In order to reduce power consumption, the display unit 151 is controlled to turn off the driving of the pixels existing in the second region except for the first region on which the preview image is displayed (S160).

If the display unit 151 of the touch screen type is not OLED or transparent OLED type, the controller 180 displays the background color of the second region except for the first region on which the preview image is displayed in black [S170].

As described above, the second area is displayed in black because the second area is an area in which no information is currently displayed on the screen, and the black color consumes less power than other light background colors.

Hereinafter, a region in which the preview image is displayed on the screen is defined as a first region, and a region other than the first region is defined as a second region on the screen.

In addition, the user can designate a first area for displaying the preview image in various ways as shown in FIGS. 7 to 9 below.

7 (a) shows a preview image 200 input from the camera 121 on the screen of the touch screen 151. FIG.

7 (b), the user can designate the first area 210A by dragging a border of the first area 210A to display the preview image 200 on the screen have.

As shown in FIG. 7C, when the border of the first area 210A to display the preview image 200 is designated by the user as described above, 210A. The preview image 200 is displayed in a reduced size.

7 (c), if the touch-screen-type display unit 151 is OLED or transparent OLED type, the controller 180 controls the display unit 151 to display the remaining area excluding the first area 210A on the screen The driving of the pixels located in the second area 210B is turned off to reduce the power consumption of the power source supplied from the power supply unit 190 to the display unit 151. [

7 (c), if the touch-screen type display unit 151 is of a type that is not capable of driving ON / OFF of a pixel like an OLED or a transparent OLED, The background color of the second area 210B excluding the first area 210A is displayed in black on the screen.

Next, as shown in FIG. 8 (a), when the user touches two fingers on the screen on which the preview image 200 is displayed, the user can not pinch-in the pinching- A first area 210A on which the preview image 200 is to be displayed may be designated on the screen using multi-touch.

At this time, the pinching-in multi-touch means a touch in which the distance between the first and second points gradually decreases in a state where the first and second specific points of the preview image 200 are multi-touched .

The control unit 180 reduces the preview image 200 in proportion to the degree of pinching of the multi-touch of the user, which is input on the preview image 200, as shown in FIG. 8 (b) do. That is, the area where the preview image 200 reduced according to the pinching-in multi-touch is displayed becomes the first area 210A.

7 (c), if the touch-screen type display unit 151 is of OLED type or transparent OLED type, the control unit 180 may display the second area except for the first area 210A on the screen, The driving of the pixels located within the display unit 210B is turned off to reduce the power consumption of the power source supplied from the power supply unit 190 to the display unit 151. [

7 (c), if the touch-screen type display unit 151 is of a type that does not enable ON / OFF of pixels such as an OLED or a transparent OLED, The background color of the second area 210B excluding the first area 210A is displayed in black on the screen.

Next, as shown in FIG. 9 (a), a user views a first area 210A on which the preview image 200 is displayed by using a drag-touch on the screen on which the preview image 200 is displayed, The second area 210B excluding the first area 210A may be designated on the screen.

When the user previews the preview image 200 in the first area 210A using the dragging touch, the user can change the image size ratio of the preview image 200 to 4: 3 or 16: 9, You can edit it at a desired rate.

That is, as shown in FIG. 9 (b), the controller 180 displays a preview image 200 on which a drag-and-touch operation for dividing the screen into the first and second areas 210A and 210B The preview image 200 is displayed in the first area 210A.

7 (c), if the display unit 151 of the touch screen type is OLED or transparent OLED type, the control unit 180 controls the display unit 151, The driving of the pixels located in the second area 210B is turned off to reduce the power consumption of the power source supplied from the power supply unit 190 to the display unit 151. [

7 (c), the display unit 151 of the touch-screen type is a type that is not capable of ON / OFF driving of pixels such as an OLED or a transparent OLED , The background color of the second area 210B excluding the first area 210A is displayed in black on the screen.

The process of designating the first area 210A to display the preview image 200 has been described in detail with reference to FIGS. 7 to 9. FIG.

Meanwhile, when the preview image 200 displayed in the first area 210A is selected, the control unit 180 can display the preview image 200 in the pull-up display again on the entire screen.

Next, a process of zooming in or out of the preview image 200 according to the expansion or contraction of the first area 210A in which the preview image 200 is displayed will be described in detail with reference to FIG. 10 below .

10A shows that the preview image 200 including the face 200A of the first person is displayed on the screen of the display unit 151. The user's pinching- Quot; is input.

That is, as shown in FIG. 8, when the user's pinching multi-touch is input, the controller 180 reduces the preview image 200 in proportion to the degree of pinching-in of the input pinching multi- Display.

At this time, when the preview image 200 is displayed in a reduced scale, the controller 180 detects the first face 200A of the first person, and as shown in FIG. 10B, The preview image 200 is zoomed out and displayed on the basis of the detected face 200A in proportion to the degree of the face 200A.

When the user's pinching-out multi-touch is input on the zoomed-out preview image 200, the control unit 180 enlarges the preview image 200 in proportion to the degree of pinching-out of the input pinching-out multi- Display.

At this time, when the preview image 200 is enlarged and displayed, the control unit 180 detects the first face 200A of the first person, and as shown in FIG. 10C, The preview image 200 is zoomed in on the detected face 200A in proportion to the size of the face 200A.

Next, referring to FIGS. 11 and 12, when a specific portion of the preview image 200 displayed in the first region 210A is selected, a process of zooming in and displaying the preview image 200 mainly on the selected portion Will be described.

11A shows that the preview image 200 including a plurality of persons is displayed in the first area 210A.

At this time, the control unit 180 selects a specific second person 200B in the preview image 200 and displays the user's pinching-out multi-image 200 on the preview image 200 as shown in FIG. 11 (b) When the touch is inputted, the preview image 200 is enlarged and displayed in proportion to the degree of pinching-out of the input pinching-out multi-touch as shown in FIG. 11 (c).

At this time, when the preview image 200 is enlarged and displayed, the controller 180 zooms in on the preview image 200 based on the selected second person 200B in proportion to the input pinching-out degree, ).

12 (a), when the preview image 200 is displayed in the first area 210A, the controller 180 displays the user's pinching-out multi-touch on the preview image 200 The preview image 200 is enlarged and displayed in proportion to the degree of pinching-out of the input pinching-out multi-touch as shown in FIG. 12 (c) The center of the preview image 200 is zoomed in and displayed.

The first embodiment of the present invention has been described above in detail with reference to Figs. 6 to 12. Fig.

Hereinafter, a second embodiment of the present invention will be described in detail with reference to Figs. 13 and 14. Fig.

Second Embodiment

As described in the first embodiment, the second embodiment of the present invention reduces and displays the preview image 200 in the first area 210A designated by the user on the screen, and displays the preview image 200 on the first area 210A In the second area 210B except for the second area 210B.

Hereinafter, a second embodiment of the present invention will be described in detail with reference to Figs. 13 to 15. Fig.

FIG. 13 is a flowchart illustrating a preview image screen control process of a portable terminal according to a second embodiment of the present invention.

FIG. 14 and FIG. 15 are explanatory views of a second embodiment of a preview image screen control process of a portable terminal according to the present invention.

13, when the camera photographing menu is selected from the user through the user input unit 130 or the touch screen 151, the controller 180 of the portable terminal 100 drives the camera 121 (S210 , The preview image input through the camera 121 is pulled up on the screen of the touch screen 151 (S220).

Next, when a specific first area 210A having a size smaller than the screen is designated by the user on the screen displaying the preview image through the user input unit 130 or the touch screen 151 (S230 , The preview image is displayed in a reduced size in the designated first area 210A (S240).

The controller 180 displays information related to the function of the camera 121 on the second area 210B except for the first area 210A on the screen (S250).

At this time, if the preview image 200 is selected while the preview image 200 is displayed in a reduced size in the first area 210A, the controller 180 displays the information in the second area 210B .

If the display unit 151 of the touch screen type is OLED or transparent OLED type as described in the first embodiment, the controller 180 may supply the power from the power supply unit 190 to the display unit 151 It is possible to turn off the driving of the remaining pixels except the pixels for displaying the information in the second area 210B by controlling the display unit 151 to reduce power consumption.

If the display unit 151 of the touch screen type is not an OLED or a transparent OLED type as described in the first embodiment, the control unit 180 may be configured such that, in the second area 210B, The remaining part is displayed in black.

14, the information may be a camera environment setting menu 310 for setting one or more photographing conditions of the camera 121. For example,

14, the camera configuration menu 310 includes a picture taking function 311, a moving picture taking function 312, a zooming function 313, and a setting function 314, for example. can do.

That is, when at least one photographing condition is set in the camera environment setting menu 310, the control unit 180 applies the set photographing condition to the preview image 200.

For example, when the photographing function 311 is selected, the control unit 180 switches the operation mode of the camera 121 to a photographing mode for capturing an image, and when the moving image photographing function 311 selects The operation mode of the camera 121 is changed to a moving image capturing mode for recording an image.

When the zoom function 313 is selected, the control unit 180 displays a UI (User Interface) for zooming in or zooming out the preview image 200 on the screen, and displays a zoom-in or zoom- When the zoom out value is set, the preview image 200 is zoomed in or out according to the set zoom in or zoom out value.

In addition, when the environment setting function 314 is selected, the controller 180 displays a list of the environment setting functions of the camera on the screen, and when one or more environment setting values are set in the list, Value to the preview image (200).

For example, the screen setting value may be set to any one of a self-shooting mode, a flash-on / off mode, a shooting mode (normal shooting mode, smile shot mode, beauty shot mode, panorama mode, etc.), a scene mode (portrait, landscape, night, sports, (Auto, Daylight, Cloudy, Incandescent, Fluorescent, ISO Sensitivity, Metering, etc.), Exposure Value, Focus Mode (Auto Focus, Macro, Face Detection) , Image stabilization, image quality, location information, and the like.

At this time, when one or more photographing conditions are set through the camera configuration menu 310, the controller 180 stops displaying the camera configuration menu 310 and displays a preview of the original in the first area 210A The image 200 may be displayed and the preview image to which the photographing condition is applied may be displayed in the second area 210B.

If the preview image to which the photographing condition is applied is selected in the state that the photographing condition is applied to the second area 210B, the controller 180 displays the selected preview image on the entire screen in a pull-up manner .

When the preview image to which the photographing condition is applied is selected while the preview image to which the photographing condition is applied is displayed in the second area 210B, the control unit 180 displays the selected preview And the camera setting menu 310 may be displayed in the second area 210B again.

15, the preview image 200 may be a 3D preview image generated by the first and second cameras 121a and 121b, and the controller 180 may generate a 3D preview image using the first region 210A ) And the left eye image and the right eye image of the 3D preview image 200 and display the remaining one image in the second area 210B.

That is, as shown in FIG. 15A, the controller 180 divides the screen into first and second regions 210A and 210B while displaying the 3D preview image 200 on the screen The screen is divided into the first and second regions 210A and 210B and the first region 210A is divided into the left and right regions 210A and 210B of the 3D image as shown in FIG. And the right eye image, and the remaining one image is displayed in the second area 210B.

For example, the controller 180 displays the left eye image input through the first camera 121a in the first area 210A and the right eye image input through the second camera 121b in the second area 210B, .

In addition, in FIG. 15, the division command may be a pinching-in or pinching-out multi-touch described with reference to FIG.

15 (b), the controller 180 controls the first area 210A to display the left eye image input through the first camera 121a without performing the process of FIG. 15 (a) And the right eye image input through the second camera 121b may be directly displayed in the second area 210B.

At this time, the left and right eye images displayed on the first and second regions 210A and 210B may be enlarged or reduced in size according to the pinching-in-out multi-touch.

In addition, if any one of the left eye and right eye images is selected, the selected image may be displayed in a pull-up display on the entire screen.

If the user's pinching-in multi-touch is input on the left eye and right eye images while the left and right eye images are displayed on the first and second regions 210A and 210B, a 3D preview image 200 in which the left and right eye images are synthesized is created and pulled up on the screen as shown in FIG.

At this time, the control unit 180 can display the 3D preview image 200 in a 3D depth level in proportion to the input pinching-in degree.

Although not shown in FIG. 15, the controller 180 may display the original 3D preview image 200 in the first area 210A and may display the 3D preview image 200 in the second area 210B, And a right eye image.

As described above, the second embodiment of the present invention has been described in detail with reference to Figs.

Hereinafter, a third embodiment of the present invention will be described in detail with reference to FIGS. 16 and 17. FIG.

Third Embodiment

As described in the first embodiment, the third embodiment of the present invention reduces the preview image 200 in the first area 210A designated by the user on the screen and displays the preview image 200 on the first area 210A The second area 210B displays information corresponding to an event generated in the portable terminal 100 at present.

Hereinafter, a third embodiment of the present invention will be described in detail with reference to Figs. 16 and 17. Fig.

16 is a flowchart illustrating a preview image screen control process of the mobile terminal according to the third embodiment of the present invention.

17 is a diagram illustrating a preview image screen control process of a mobile terminal according to a third embodiment of the present invention.

16 and 17, steps S310 to S370 of the third embodiment of the present invention are the same as those of steps S110 to S170 of FIG. 6, and thus will not be described below.

The control unit 180 detects whether a specific event is generated in the portable terminal 100 in a state in which the preview image 200 is displayed in the first region 210A by the process of S110 to S170 in operation S380.

At this time, the event may be a call reception from a counterpart terminal, a message reception, and an alarm output at a time set by the user.

If the event is generated in step S390, the control unit 180 displays information corresponding to the generated event in the second area 210B (step S400).

17 (a), the controller 180 displays the preview image 200 in the first area 210A of the screen according to the processes of FIGS. 6 to 12 described above When the event that a call is received from the counterpart terminal through the wireless communication unit 110 is generated, information 320 indicating the state of receiving the call is generated in a state in which the photographing mode of the camera 121 is maintained, And displays the generated information 320 in the second area 210B of the screen.

At this time, when the information 320 is selected, the control unit 180 connects the received call and outputs a call voice signal received from the counterpart terminal through the wireless communication unit 110 to the sound output module 152 And transmits the voice signal for communication input through the microphone 122 to the counterpart terminal through the wireless communication unit 110. [

In addition, if the call is a call for a video call, the control unit 180 may display an image received from the counterpart terminal through the wireless communication unit 110 in the second area 210B.

That is, the user can confirm the caller of the present call on the screen on which the preview image 200 is displayed while the current camera shooting mode is maintained, and also, while using the photographing function of the camera 121, And can talk with.

As another example, as shown in FIG. 17B, the controller 180 displays the preview image 200 in the first area 210A of the screen according to the processes of FIGS. 6 to 12 Generates information 330 indicating the message reception state while maintaining a photographing mode of the camera 121 when an event that a message is received from the counterpart terminal through the wireless communication unit 110 is generated, And displays the generated information 330 in the second area 210B of the screen.

At this time, the message may be a text message, a multimedia message with data attached thereto, or a social network message.

If the information 320 is selected, the controller 180 may display the contents of the received message in the second area 210B.

That is, the user can confirm the currently received message on the screen in which the preview image 200 is displayed while the current camera shooting mode is maintained, and at the same time, while using the shooting function of the camera 121, Of course.

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 the computer-readable medium include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage, and the like, and also implemented in the form of a carrier wave (for example, transmission over the Internet) . Also, the computer may include a control unit 180 of the terminal.

Accordingly, the above description should not be construed in a limiting sense in all respects and should be considered illustrative. The scope of the present invention should be determined by rational interpretation of the appended claims, and all changes within the scope of equivalents of the present invention are included in the scope of the present invention.

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: Display unit 152: Acoustic output module
153: Alarm module 154: Haptic module
155: projector module 160: memory
170: interface unit 180: control unit
181: Multimedia module 190: Battery

Claims (16)

At least one camera;
A touch screen for displaying a preview image received from the camera on the entire screen; And
Wherein when the input of the touch gesture having a pattern for dividing a first area having a size smaller than the screen on which the preview image is to be displayed is received within the screen, the first area is determined as a display area of the preview image, And a control unit for displaying the preview image entirely in the first area and displaying information related to the function of the camera in a second area excluding the first area in the screen,
Wherein,
A portion of the second area excluding the information is black processed and displayed,
If the distance between the first and second points is gradually increased in a state where the first and second points of the first area on which the preview image including at least one face is displayed are touched, The preview image is gradually zoomed around the person's face in proportion to an increase in distance of the preview image,
When a distance between the first and second points is gradually reduced in a state in which the first and second points of the first region are touched, And gradually zooming out the preview image around the center of the preview image. The method according to claim 1,
The touch screen is an organic light-emitting diode (OLED) type capable of pixel control,
Wherein the control unit drives the pixels in the first area to display the preview image and turns off the driving of the remaining pixels except the pixels that display the information in the second area. The method according to claim 1,
Wherein the controller displays the information in the second area when the first area is selected. The method according to claim 1,
Wherein the information includes a camera environment setting menu for setting at least one photographing condition of the camera,
If at least one camera photographing condition is set through the camera configuration menu while the camera configuration menu is displayed in the second area, the controller displays the original first preview image in the first area And a second preview image to which the set camera photographing condition is applied is displayed in the second area. The method according to claim 1,
The camera includes a first camera for receiving a left eye image for 3D (3-Dimensional) image generation and a second camera for receiving a right eye image for generating the 3D image,
Wherein the preview image displayed in the first area is a 3D preview image generated based on left and right eye images received through the first and second cameras. 6. The method of claim 5,
Wherein the control unit displays any one of a left eye image and a right eye image of the 3D preview image in the first area when the 3D preview image is selected and displays the left eye image and the right eye image of the 3D preview image in the second area, And displays the other one. The method according to claim 1,
Wherein the control unit displays information indicating the generated event in the second area when a specific event is generated in the portable terminal while the preview image is displayed in the first area. delete delete delete delete delete delete delete delete delete

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