KR20130110556A - Mobile terminal and control method thereof - Google Patents

Abstract

PURPOSE: A mobile terminal and a control method thereof are provided to effectively operate a camera unit in a lock screen. CONSTITUTION: A display unit (151) indicates a lock screen in a lock mode which limits the input of control commands for an application. A camera unit (121) obtains an image in the lock mode. A control unit (180) indicates a preview image of the camera unit in the display unit with the lock screen. A user input unit (130) receives a control command for unlocking a sleep mode. [Reference numerals] (110) Wireless communication unit; (111) Broadcast receiving module; (112) Mobile communication module; (113) Wireless internet module; (114) Short distance communication module; (115) Location information module; (120) A/V input unit; (121) Camera; (122) Microphone; (130) User input unit; (140) Detecting unit; (141) Proximity sensor; (150) Output unit; (151) Display unit; (152) Sound output module; (153) Alarming unit; (154) Haptic module; (160) Memory; (170) Interface unit; (180) Control unit; (181) Multimedia module; (190) Power supply unit

Description

[0001] MOBILE TERMINAL AND CONTROL METHOD THEREOF [0002]

The present invention relates to a mobile terminal, and more particularly, to a mobile terminal capable of touch input and a control method thereof.

Terminal is movable And may 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.

As the functions of the terminal are diversified, the terminal is implemented in the form of a multimedia device having a combination of functions such as photographing and photographing of a moving picture, reproduction of a music or video file, reception of a game and broadcasting, have. Further, in order to support and enhance the function of the terminal, it may be considered to improve the structural and software parts of the terminal.

With this improvement, a lock mode can be executed in the mobile terminal to receive limited user input to prevent unintended touch input by the user. In addition, a preset lock screen may be displayed in the lock mode. However, when the user wants to operate the camera unit while the lock screen is displayed while the sleep mode is released, there are inconveniences in that several steps are performed and several seconds are required.

An object of the present invention is to provide a mobile terminal and a control method thereof capable of efficiently operating a camera unit on a lock screen.

According to an embodiment of the present disclosure, a mobile terminal may include: a display unit configured to display a lock screen in a lock mode for restricting input of a control command for an application; A camera unit which acquires an image in the lock mode; And a controller configured to display the preview image of the camera unit together with the lock screen.

In an embodiment, the mobile terminal may further include a user input unit configured to receive a control command for releasing a sleep mode. When the controller receives a control command for releasing the sleep mode through the user input unit, the controller may activate the camera unit and display a preview image of the camera unit along with the lock screen on the display unit.

In example embodiments, when a touch input for the preview image is detected, the controller acquires an image using the camera unit and displays the obtained image on the display unit together with the lock screen and the preview image. can do.

In example embodiments, when a touch input for the acquired image is detected, the controller executes a video album application including the obtained video, and executes the video album application to lock the lock mode. The display may display a pop-up window for receiving a password or a touch trace for unlocking.

The control unit, when receiving a control command for releasing the sleep mode, acquires an image using the camera unit while activating the camera unit, and acquires the obtained image from the lock screen and the preview image. The display may be displayed on the display unit.

The control unit may be configured to acquire a plurality of images continuously by using the camera unit while activating the camera unit, and display at least one of the obtained plurality of images together with the lock screen and the preview image. We can display in wealth.

The control unit may change setting information of the camera unit based on a touch input for the preview image.

The setting information of the camera unit may include at least one of setting information on flash on / off, contrast, brightness, saturation, zoom in, zoom out, white balance, and resolution.

In example embodiments, the controller may change graphic information of the preview image based on a touch input to the preview image.

The graphic information of the preview image may include at least one of setting information regarding the size, position, and transparency of the preview image.

The control unit may display the preview image in an area different from the area where the lock screen is displayed or overlap the area in which the lock screen is displayed.

The virtual controller may be further configured to display the preview image in an area different from the area where the virtual keypad is displayed or when the virtual keypad for receiving the password of the lock mode is displayed on the display unit. May be displayed to overlap the displayed area.

The mobile terminal of claim 1 or 2, wherein when the preview image is displayed to overlap the area where the virtual keypad is displayed, the controller displays the preview image semi-transparently.

The camera unit may include a plurality of cameras, and the controller may display preview images corresponding to each of the plurality of cameras together with the lock screen on the display unit.

According to an embodiment, when a touch input for at least one of the preview images is detected, the controller may acquire an image by using a camera corresponding to the at least one touched image.

According to an embodiment of the present disclosure, a method of controlling a mobile terminal may include: displaying a lock screen on a display unit in a lock mode for restricting input of a control command for an application; Acquiring an image using a camera unit in the lock mode; And displaying the preview image of the camera unit together with the lock screen on the display unit.

The control method of the mobile terminal may include receiving a control command for releasing a sleep mode through a user input unit; And when the sleep mode is released, displaying the lock screen on the display unit and activating the camera unit.

The control method of the mobile terminal may include: acquiring an image using the camera unit when a touch input for the preview image is detected; And displaying the obtained image on the display unit together with the lock screen and the preview image.

According to the present invention, when the sleep mode is released, the camera unit may be automatically activated, and the preview image may be displayed on the display unit together with the lock screen. In this case, an image may be automatically acquired, or an image may be obtained by a touch input to the preview image. Accordingly, a one-step process is performed from the release of the sleep mode to the photographing, which may take a relatively short time. As a result, user convenience can be improved.

1 is a block diagram illustrating a mobile terminal according to the present invention.
2A and 2B are perspective views showing an appearance of a mobile terminal according to the present invention.
3 is a flowchart for explaining an embodiment of a mobile terminal according to the present invention.
4 to 10 are conceptual views illustrating an operation example of the mobile terminal according to FIG. 3.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings so that those skilled in the art may easily implement the technical idea of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

The mobile terminal described herein 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), a navigator, have. However, it should be understood that the configuration according to the embodiments described herein may be applied to a fixed terminal such as a digital TV, a desktop computer, and the like, unless it is applicable only to a mobile terminal. It will be easy to see.

1 is a block diagram illustrating a mobile terminal 100 according to the present invention.

1, a mobile terminal 100 includes a wireless communication unit 110, an A / V input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, A controller 160, an interface unit 170, a controller 180, and a power supply unit 190. The components shown in Fig. 1 are not essential, so that a mobile terminal having more or fewer components can be implemented.

Hereinafter, the components 110 to 190 of the mobile terminal 100 will be described in order.

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

The broadcast receiving module 111 receives broadcast signals and broadcast related information from an external broadcast management server through a broadcast channel. Here, the broadcast-related information means information related to a broadcast channel, a broadcast program, or a broadcast service provider. The broadcast-related information can also be provided through a mobile communication network. In this case, the broadcast-related information may be received by the mobile communication module 112. The broadcast signal and the 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. Such wireless signals may include various types of data depending on a voice call signal, a video call signal, a text message, or a multimedia message transmission / reception.

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

The short range communication module 114 refers to a module for short range communication. As a short range communication technology, Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, and the like can be used.

The position information module 115 is a module for acquiring the position of the mobile terminal 100, and a representative example thereof is a Global Position System (GPS) module.

1, an A / V (Audio / Video) input unit 120 is for inputting an audio signal and a video signal, and may include a camera 121, a microphone 122, and the like. The camera 121 processes image frames such as still images and moving images obtained by the image sensor in the video communication mode or the photographing mode. The image frame processed by the camera 121 can be displayed on the display unit 151. [ The image frame may be stored in the memory 160 or transmitted to the outside through the wireless communication unit 110. [ More than two cameras 121 may be provided depending on the use environment.

The microphone 122 processes the sound signal input from the outside in the communication mode, the recording mode, the voice selection mode, and the like as electrical voice data. The voice data processed by the microphone 122 in the communication mode can be converted into a form that can be transmitted to the mobile communication base station through the mobile communication module 112 and output. The microphone 122 may be implemented with various noise reduction algorithms for eliminating noise generated when an external sound signal is input.

The user input unit 130 generates input data for controlling the operation of the mobile terminal 100 by a user. The user input unit 130 may include a key pad, a dome switch, a touch pad (static pressure and static electricity), a jog wheel, a jog switch, and the like.

The sensing unit 140 senses the current state of the mobile terminal 100 such as presence or absence of a user, the open / close state of the mobile terminal 100, position, orientation, acceleration, deceleration, And generates a sensing signal. For example, when the mobile terminal 100 is in the form of a slide phone, the sensing unit 140 may detect whether the slide phone is opened or closed. The sensing unit 140 may sense whether the power supply unit 190 is powered on, whether the interface unit 170 is connected to an external device, and the like.

The sensing unit 140 may include a proximity sensor 141. The sensing unit 140 may include a touch sensor (not shown) for sensing a touch operation with respect to the display unit 151.

The touch sensor may have the form of a touch film, a touch sheet, a touch pad, or the like. The touch sensor may be configured to convert a pressure applied to a specific portion of the display portion 151 or a change in capacitance generated at a specific portion of the display portion 151 into an electrical input signal. The touch sensor may be configured to detect a touch pressure as well as a touched position and area.

When the touch sensor and the display unit 151 have a mutual layer structure, the display unit 151 can be used as an input device in addition to the output device. The display unit 151 may be referred to as a 'touch screen'.

If there is a touch input via the touch screen, signals corresponding thereto are sent to a touch controller (not shown). The touch controller processes the signals transmitted from the touch sensor, and then transmits data corresponding to the processed signals to the controller 180. Thus, the control unit 180 can know which area of the display unit 151 is touched.

In the case where the touch screen is electrostatic, it can be configured to detect the proximity of the sensing object by a change of the electric field along the proximity of the sensing target. Such a touch screen may be classified as proximity sensor 141. [

The proximity sensor 141 refers to a sensor that detects the presence or absence of an object to be sensed without mechanical contact using an electromagnetic force or infrared rays. The proximity sensor 141 has a longer life than the contact type sensor and its utilization is also high. Examples of the proximity sensor 141 include a transmission type photoelectric sensor, a direct reflection type photoelectric sensor, a mirror reflection type photoelectric sensor, a high frequency oscillation type proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor.

Hereinafter, for convenience of explanation, a proximity action is referred to as " proximity touch " while an object to be sensed does not touch the touch screen, and an action of touching the sensing object on the touch screen is called & touch ".

The proximity sensor 141 detects the presence or absence of 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, The information corresponding to the presence / absence of proximity touch and the proximity touch pattern can be output to the touch screen.

The output unit 150 generates an output related to visual, auditory, tactile, and the like. The output unit 150 may include a display unit 151, an audio output module 153, an alarm unit 154, and a haptic module 155.

The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, when the mobile terminal 100 operates in the call mode, the display unit 151 displays a UI (User Interface) or a GUI (Graphic User Interface) related to the call. When the mobile terminal 100 operates in the video communication mode or the photographing mode, the display unit 151 displays the photographed image, the received image, the UI, the GUI, and the like.

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

At least one display (or display element) included in the display unit 151 may be configured to be transparent or light transmissive so that the display can see the outside through it. This can be referred to as a transparent display. A typical example of such a transparent display is TOLED (Transparent OLED). 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 in the terminal body.

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

The sound output module 153 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 selection mode, a broadcast reception mode, The sound output module 153 also outputs sound signals related to functions (e.g., call signal reception sound, message reception sound, etc.) performed in the mobile terminal 100. [ The sound output module 153 may include a receiver, a speaker, a buzzer, and the like.

The alarm unit 154 outputs a signal for notifying the occurrence of an event of the mobile terminal 100. Examples of events generated in the mobile terminal 100 include call signal reception, message reception, key signal input, touch input, and the like. The alarm unit 154 may output a signal for informing occurrence of an event in a form other than the video signal or the audio signal, for example, vibration. The display unit 151 and the audio output module 153 may be classified as a part of the alarm unit 154 because the video signal or the audio signal can be output through the display unit 151 or the audio output module 153. [

The haptic module 155 generates various tactile effects that the user can feel. A typical example of the haptic effect generated by the haptic module 155 is vibration. The intensity, pattern, and the like of the vibration generated by the tactile module 155 are controllable. For example, different vibrations may be synthesized and output or sequentially output.

In addition to the vibration, the haptic module 155 may be configured to perform various functions such as a pin arrangement vertically moving with respect to the contact skin surface, a spraying force or a suction force of the air through the injection port or the suction port, a touch on the skin surface, contact with an electrode, Various effects can be generated such as the effect of heat generation and the effect of reproducing the cold sensation using the heat absorbing or heatable element.

The haptic module 155 can be configured to not only transmit the tactile effect through the direct contact but also to allow the user to feel the tactile effect through the muscular sense of the finger or arm. At least two haptic modules 155 may be provided according to the configuration of the mobile terminal 100.

The memory 160 may store a program for the operation of the controller 180 and temporarily store input and output data (e.g., a phone book, a message, a still image, a moving picture, etc.). The memory 160 may store data related to vibrations and sounds of various patterns that are output upon touch input on the touch screen.

The memory 160 may be a flash memory, a hard disk, a multimedia card micro type, a card type memory (e.g., SD or XD memory), a random access memory (RAM), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), programmable read-only memory (PROM) And may include at least one storage medium. The mobile terminal 100 may operate in association with a web storage that performs storage functions 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, receives power, transfers the power to each component inside the mobile terminal 100, or transmits data inside the mobile terminal 100 to an external device. For example, the interface unit 170 may include 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, Input / output ports, video I / O ports, earphone ports, and the like.

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 Universal Subscriber Identity Module (USIM)). A device equipped with an identification module (hereinafter referred to as "identification device") 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 170 may be a path through which the 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 the user, (Not shown). The various command signals or power supplied from the cradle may also act as a signal for recognizing that the mobile terminal 100 is correctly mounted in the cradle.

The controller 180 controls the overall operation of the mobile terminal 100. For example, control and processing related to 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 control unit 180 may perform pattern selection processing for selecting handwriting input and drawing input on the touch screen as characters and images, respectively.

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

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

According to a hardware implementation, the embodiments described herein may be applied to various types of application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays Microprocessors, microprocessors, and other electronic units for performing other functions, as will be appreciated by those skilled in the art. In some cases, the embodiments described herein may be implemented by the controller 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 may be implemented in a software application written in a suitable programming language. Such software code may be stored in the memory 160 and executed by the controller 180.

Hereinafter, a method of processing user input to the mobile terminal 100 will be described.

The user input unit 130 is operated to receive a command for controlling the operation of the mobile terminal 100, and may include a plurality of operation units. The operating units may also be referred to as manipulating portions and may be employed in any manner as long as they are operated in a tactile manner by the user's tactile sense.

Various kinds of time information can be displayed on the display unit 151. [ Such visual information can be displayed in the form of letters, numbers, symbols, graphics, icons, and the like, and can be formed as a three-dimensional stereoscopic image. At least one of a character, a number, a symbol, a graphic, and an icon may be displayed in a predetermined arrangement for inputting time information, thereby being implemented as a keypad. Such a keypad may be referred to as a so-called " soft key ".

The display unit 151 may operate as an entire area or may be divided into a plurality of areas and operated. In the latter case, the plurality of areas can be configured to operate in association with one another. For example, an output window and an input window may be displayed on the upper and lower portions of the display unit 151, respectively. The output window and the input window are areas allocated for outputting or inputting information, respectively. In the input window, a soft key with a number for inputting a telephone number may be output. When the soft key is touched, the number corresponding to the touched soft key is displayed in the output window. When the operating unit is operated, a call connection to the telephone number displayed in the output window may be attempted, or the text displayed in the output window may be entered into the application.

The display unit 151 or the touch pad may be configured to detect touch scrolling. The user can move the cursor or the pointer positioned on the displayed object, for example, the icon, on the display unit 151 by scrolling the display unit 151 or the touch pad. Further, when the finger is moved on the display unit 151 or the touch pad, the path along which the finger moves may be visually displayed on the display unit 151. [ This will be useful for editing the image displayed on the display unit 151. [

One function of the mobile terminal 100 may be executed in response to a case where the display unit 151 and the touch pad are touched together within a predetermined time range. In the case of being touched together, there may be a case where the user clamps the main body of the mobile terminal 100 using the thumb and index finger. At this time, one function of the mobile terminal 100 to be executed may be activation or deactivation for the display unit 151 or the touch pad, for example.

2A and 2B are perspective views showing the appearance of the mobile terminal 100 related to the present invention.

FIG. 2A shows a front side and one side of the mobile terminal 100, and FIG. 2B shows a rear side and the other side of the mobile terminal 100. FIG.

Referring to FIG. 2A, the mobile terminal 100 includes a bar-shaped terminal body. However, the mobile terminal 100 is not limited thereto, and may be realized in various forms such as a slide type, a folder type, a swing type, and a swivel type in which two or more bodies are movably coupled to each other.

The terminal body includes a case (a casing, a housing, a cover, and the like) that forms an appearance. In the 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 of a synthetic resin or may be formed to have a metal material such as stainless steel (STS), titanium (Ti) or the like.

The display unit 151, the sound output unit 152, the camera 121, the user input unit 130 (see FIG. 1), the microphone 122, the interface 170, can do.

The display unit 151 occupies a main portion of the front case 101. [ The audio output unit 152 and the camera 121 are located in a region adjacent to one end of the display unit 151 and the first user input unit 131 and the microphone 122 are located in a region adjacent to the other end. The second user input unit 132 and the interface 170 may be located on the sides 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 mobile terminal 100. [ The user input unit 130 may include a plurality of operation units 131 and 132.

The first or second operating units 131 and 132 can receive various commands. For example, the first operation unit 131 can receive commands such as start, end, scroll, and the like. The second operation unit 132 can receive commands such as adjusting the size of the sound output from the sound output unit 152, switching to the touch selection mode of the display unit 151, and the like.

Referring to FIG. 2B, a rear camera 121 'may be additionally mounted on the rear surface of the terminal body, that is, the rear case 102. The rear camera 121 'has a photographing direction opposite to that of the front camera 121 (see FIG. 2A), and may be configured to have pixels different from those of the front camera 121.

For example, the front camera 121 may be configured to have a low pixel, and the rear camera 121 'may be configured to have a high pixel. Accordingly, when the front camera 121 is used during a video call, the size of the transmission data may be reduced when the user's face is photographed and transmitted to the counterpart in real time. On the other hand, the rear camera 121 'can be used for the purpose of storing a high-quality image.

Meanwhile, the cameras 121 and 121 'may be installed in the terminal body so as to be rotated or popped up.

The flash 123 and the mirror 124 may be further positioned adjacent to the rear camera 121 '. The flash 123 emits light toward the subject when the user photographs the subject with the rear camera 121 '. The mirror 124 illuminates the user's face when the user photographs himself (self-photographing) using the rear camera 121 '.

A rear sound output unit 152 'may be additionally disposed on the rear surface of the terminal body. The rear sound output unit 152 'may perform a stereo function together with the front sound output unit 152 (see FIG. 2A), and may perform a speakerphone function during a call.

In addition to the antenna for communication, an antenna 116 for receiving broadcast signals may be additionally provided on the side surface of the terminal body. The antenna 116 constituting a part of the broadcast receiving module 111 (see FIG. 1) can be installed to be able to be drawn out from the terminal body.

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

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 like the display unit 151 (see FIG. 2A). Further, a back display unit for outputting time information can be additionally mounted on the touch pad 135. [ At this time, information output from both sides of the front display unit 151 and the rear display unit can be controlled by the touch pad 135. [

The touch pad 135 operates in correlation with the display unit 151. [ The touch pad 135 may be positioned 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.

Meanwhile, in order to prevent unintended touch input by the user, the mobile terminal 100 may execute a lock mode for receiving limited user input. In addition, a preset lock screen may be displayed in the lock mode. However, when the user wants to operate the camera unit 121 in a state where the lock screen is displayed while the sleep mode is released, there are inconveniences in that several steps are performed and several seconds are required.

Accordingly, the mobile terminal 100 capable of efficiently operating the camera unit 121 on the lock screen and a control method thereof will be described with reference to the accompanying drawings.

FIG. 3 is a flowchart for explaining an embodiment of the mobile terminal 100 (see FIG. 1) according to the present invention. The mobile terminal 100 may include a display unit 151 (see FIG. 1), a user input unit 130 (see FIG. 1), a camera unit 121 (see FIG. 1), and a controller 180 (see FIG. 1).

Referring to FIG. 3, in operation S110, a lock screen is displayed on the display unit 151 in a lock mode.

Specifically, when the mobile terminal 100 is in the sleep mode, the user input unit 130 may receive a control command for releasing the sleep mode. Here, the sleep mode means a mode in which the screen information is not displayed on the display unit 151 and the touch input applied to the display unit 151 is not sensed.

When a control command for releasing the sleep mode is received through the user input unit 130, the controller 180 may display the lock screen on the display unit 151.

Generally, the lock mode of the mobile terminal 100 means an operation mode for restricting a user input such as a touch input applied to the display unit 151. And, this lock mode can be released based on the limited user input.

In the lock mode, the lock screen may be displayed on the display unit 151. Here, the lock screen refers to a screen formed to block or limit exposure of a specific screen (for example, a standby screen or a home screen) or another image. The lock screen may include, for example, a window for receiving a password or a window for receiving a specific pattern.

Next, in operation S120, an image is acquired using the camera unit 121 in the lock mode.

In detail, when a control command for releasing the sleep mode is input through the user input unit 130, the controller 180 may activate the camera unit 121 while displaying the lock screen on the display unit 151. . Here, the camera unit 121 may include a plurality of cameras.

Thereafter, a step (S130) in which the preview image of the camera unit 121 is displayed on the display unit 151 together with the lock screen is performed.

In detail, the controller 180 may display the preview image of the camera unit 121 together with the lock screen on the display unit 151 while activating the camera unit 121. The controller 180 may convert the optical signal received by the lens of the camera unit 121 into an image signal, and display the converted image signal on the display unit 151 as a preview image.

Here, when the camera unit 121 includes a plurality of cameras, the controller 180 may display preview images corresponding to each of the plurality of cameras on the display unit 151 together with the lock screen.

Meanwhile, the controller 180 can directly acquire an image using the camera unit 121 while activating the camera unit 121. Here, the number of images acquired according to the user's setting may vary. The controller 180 can display the obtained image on the display unit 151 together with the lock screen and the preview image.

In addition, when a touch input for the preview image is detected, the controller 180 may acquire an image by using the camera unit 121. Similarly, the controller 180 can display the obtained image on the display unit 151 together with the lock screen and the preview image.

As described above, according to the present invention, when the sleep mode is released, the camera unit 121 may be automatically activated, and the preview image may be displayed on the display unit 151 together with the lock screen. In this case, an image may be automatically acquired, or an image may be obtained by a touch input to the preview image. Accordingly, a one-step process is performed from the release of the sleep mode to the photographing, which may take a relatively short time. As a result, user convenience can be improved.

FIG. 4 is a conceptual diagram showing an operation example of the mobile terminal 200 according to FIG. The mobile terminal 200 may include a display unit 251, a user input unit 230, a camera unit 121 (see FIG. 1), and a controller 180 (see FIG. 1).

Referring to FIG. 4, when the mobile terminal 200 receives a control command for releasing the sleep mode through the user input unit 230 while the mobile terminal 200 is in the sleep mode, the controller 180 may release the sleep mode. . As the sleep mode is released, the controller 180 may display the lock screen on the display unit 251. As shown, the lock screen may include, for example, a window 253 for receiving a password or a window 254 for receiving a specific pattern.

In addition, while the sleep mode is released, the controller 180 can activate the camera unit 121. The controller 180 may display the preview image 252 of the camera unit 121 together with the lock screen on the display unit 251 while activating the camera unit 121.

In this case, the preview image 252 may be displayed in an area different from the area where the lock screen is displayed, or may overlap the area where the lock screen is displayed. That is, as shown, the preview image 252 may be displayed in an area different from the area in which the window 253 for inputting the password is displayed, or may be displayed so as to overlap the window 254 for receiving a specific pattern. The opposite may be true. If the preview image 252 is displayed to overlap the area where the lock screen is displayed, the preview image 252 may be displayed semi-transparently.

In addition, when the virtual keypad for inputting the password in the lock mode is displayed on the display unit 251, the preview image 252 may be displayed in an area different from the area where the virtual keypad is displayed, as shown. Although not shown, the virtual keypad may be displayed to overlap the area where the virtual keypad is displayed. If the preview image 252 is displayed to overlap the area where the virtual keypad is displayed, the preview image 252 may be displayed semi-transparently.

5 and 6 are conceptual views illustrating an operation example of the mobile terminal 200 according to FIG. 3. The mobile terminal 200 may include a display unit 251, a user input unit 230, a camera unit 121 (see FIG. 1), and a controller 180 (see FIG. 1).

5 and 6, the preview image 252 of the camera unit 121 may be displayed on the display unit 251 together with the lock screen. As shown, the lock screen may include, for example, a window 253 for receiving a password.

In this case, as illustrated in FIG. 5, when a touch input to the preview image 252 is detected, the controller 180 may acquire an image by using the camera unit 121. Next, the controller 180 may display the obtained image 255a on the display unit 251 together with the lock screen and the preview image 252.

Thereafter, when the touch input to the preview image 252 is re-detected, the controller 180 may acquire a new image by using the camera unit 121. The controller 180 may cause the previously obtained image 255a to disappear from the display unit 251 and display the newly acquired image 255b together with the lock screen and the preview image 252 on the display unit 251. have.

At this time, although not shown, when a touch input for the newly acquired image 255b is detected, the controller 180 causes the newly acquired image 255b to disappear from the display unit 251, and the previously acquired image 255b is acquired. The image 255a may be displayed on the display unit 251.

In addition, although not shown, when a new image is obtained, the controller 180 may display the previously obtained image 255a and the newly acquired image 255b together on the display unit 251.

Meanwhile, as shown in FIG. 6, when a control command for releasing the sleep mode is received, the controller 180 may acquire an image directly by using the camera unit 121 while activating the camera unit 121. have. Next, the controller 180 may display the obtained image 255a on the display unit 251 together with the lock screen and the preview image 252. In this case, one or more acquired images may be provided.

Thereafter, when a touch input to the preview image 252 is detected, the controller 180 can obtain a new image by using the camera unit 121. The controller 180 may display the previously acquired image 255a and the newly acquired image 255b together on the display unit 251.

At this time, although not shown, the controller 180 is based on a touch input to the previously obtained image 255a and the newly acquired image 255b, and the previously obtained image 255a and the newly acquired image. At least one of the operations 255b may disappear from the display unit 251.

In addition, although not shown, when a new image is acquired, the controller 180 causes the previously obtained image 255a to disappear from the display unit 251, and the newly acquired image 255b to lock screen and preview. The image 252 may be displayed on the display unit 251.

FIG. 7 is a conceptual diagram showing an operation example of the mobile terminal 200 according to FIG. The mobile terminal 200 may include a display unit 251, a user input unit 230, a camera unit 121 (see FIG. 1), and a controller 180 (see FIG. 1).

Referring to FIG. 7, the preview image 252 of the camera unit 121 and the image 255 obtained through the camera unit 121 may be displayed on the display unit 251 together with the lock screen. As shown, the lock screen may include, for example, a window 253 for receiving a password.

In this case, when a touch input with respect to the acquired image 255 is detected, the controller 180 may execute an image album application including the obtained image. In this case, the video album application may be executed immediately or may be executed after the lock mode is released.

In detail, as illustrated, the controller 180 may display a pop-up window 256 for receiving a password for releasing the lock mode on the display unit 251 while executing the video album application. Although not shown, the controller 180 may display a pop-up window for receiving a touch trace for releasing the lock mode on the display unit 251.

When the password is input while the pop-up window 256 is displayed, the controller 180 can execute a video album application. When the image album application is executed, thumbnail images corresponding to each of the images included in the image album may be displayed on the display unit 251. Here, the thumbnail images corresponding to each of the images included in the image album may include thumbnail images corresponding to the obtained image.

FIG. 8 is a conceptual diagram showing an operation example of the mobile terminal 200 according to FIG. The mobile terminal 200 may include a display unit 251, a user input unit 230, a camera unit 121 (see FIG. 1), and a controller 180 (see FIG. 1).

Referring to FIG. 8, the preview image 252 of the camera unit 121 may be displayed on the display unit 251 together with the lock screen. As shown, the lock screen may include, for example, a window 253 for receiving a password.

In this case, when a touch input for the preview image 252 is detected, the controller 180 may change setting information of the camera unit 121 based on the touch input for the preview image 252. Here, the setting information of the camera unit 121 may include at least one of setting information about flash on / off, contrast, brightness, saturation, zoom in, zoom out, white balance, and resolution.

For example, when it is detected that the first and second touch points of the touch input for the preview image 252 move in a direction away from each other, that is, when a pinch-in touch input is detected, The controller 180 may perform a zoom in operation of the zoom lens of the camera unit 121. Accordingly, as shown, the face of the subject may be enlarged and disposed in the center of the preview image 252.

Subsequently, when it is detected that the first and second touch points of the touch input with respect to the preview image 252 move in the approaching direction, that is, when a pinch-out touch input is detected, the controller 180 may perform a zoom out operation of the zoom lens of the camera unit 121. Accordingly, as illustrated, the face of the subject may be reduced and disposed in the center of the preview image 252.

9 is a conceptual diagram illustrating an operation example of the mobile terminal 200 according to FIG. 3. The mobile terminal 200 may include a display unit 251, a user input unit 230, a camera unit 121 (see FIG. 1), and a controller 180 (see FIG. 1).

9, the preview image 252 of the camera unit 121 may be displayed on the display unit 251 together with the lock screen. As shown, the lock screen may include, for example, a window 254 for receiving a specific pattern.

In this case, when a touch input to the preview image 252 is detected, the controller 180 may change graphic information of the preview image 252 based on the touch input to the preview image 252. Here, the graphic information of the preview image 252 may include at least one of setting information on the size, position, and transparency of the preview image 252.

For example, when a drag input is detected after the touch on the preview image 252, the controller 180 may move the position of the preview image 252 based on the drag direction.

Thereafter, when it is detected that the first and second touch points of the touch input with respect to the preview image 252 move in a direction away from each other, that is, when a pinch-in touch input is detected, the controller 180 controls the preview image. The size of 252 can be enlarged.

Although not shown, when it is detected that the first and second touch points of the touch input for the preview image 252 move in the approaching direction, that is, when the pinch-out touch input is detected, the controller ( 180 may reduce the size of the preview image 252.

Similarly, when a specific touch input to the preview image 252 is detected, the controller 180 may adjust the transparency of the preview image 252.

10 is a conceptual diagram illustrating an operation example of the mobile terminal 200 according to FIG. 3. The mobile terminal 200 may include a display unit 251, a user input unit 230, a camera unit 121 (see FIG. 1), and a controller 180 (see FIG. 1). Here, the camera unit 121 may include a plurality of cameras. The plurality of cameras may include, for example, a front camera and a rear camera.

Referring to FIG. 10, preview images 252a and 252b corresponding to each of the plurality of cameras of the camera unit 121 may be displayed on the display unit 251 together with the lock screen. As shown, the lock screen may include, for example, a window 253 for receiving a password.

In this case, as illustrated, when a touch input to any one of the preview images 252a and 252b is detected, the controller 180 may acquire an image by using a camera corresponding to the touched preview image 252b. Can be. Next, the controller 180 can display the obtained image 255 along with the lock screen and the preview images 252a and 252b on the display unit 251.

Subsequently, although not shown, when a touch input to the other one of the preview images 252a and 252b is detected, the controller 180 uses the camera corresponding to the touched other preview image 252a to generate a new image. May be obtained. Next, the controller 180 causes the existing image 255 to disappear from the display unit 251, and the newly acquired image is displayed on the display unit 251 together with the lock screen and the preview images 252a and 252b. I can display it.

In addition, although not shown, when a new image is obtained, the controller 180 may display the previously obtained image 255 and the newly acquired image together on the display unit 251.

Meanwhile, as shown, the controller 180 disappears the untouched preview image 252a and then displays the obtained image 255 along with the lock screen and the touched preview image 252b on the display unit 251. Can also be displayed.

Subsequently, although not shown, when the mobile terminal 100 enters the sleep mode and receives a control command for releasing the sleep mode, and the sleep mode is released, the controller 180 may touch the preview image 252b. Only cameras corresponding to) can be activated. Accordingly, the controller 180 may display only the preview image 252b corresponding to the activated camera on the display unit 251 together with the lock screen.

The mobile terminal described above can be applied to not only the configuration and method of the embodiments described above but also all or some of the embodiments may be selectively combined so that various modifications may be made to the embodiments It is possible.

Claims (18)

A display unit configured to display a lock screen in a lock mode for restricting input of a control command for an application;
A camera unit which acquires an image in the lock mode; And
And a control unit which displays the preview image of the camera unit together with the lock screen on the display unit. The method of claim 1,
Further comprising a user input unit for receiving a control command for releasing the sleep mode,
The control unit,
And receiving a control command for releasing the sleep mode through the user input unit, activating the camera unit, and displaying a preview image of the camera unit along with the lock screen on the display unit. 3. The method of claim 2,
The control unit,
When a touch input for the preview image is detected, an image is acquired using the camera unit,
And displaying the obtained image on the display unit together with the lock screen and the preview image. The method of claim 3, wherein
The control unit,
When a touch input for the acquired image is detected, the video album application including the obtained image is executed.
And displaying a pop-up window for receiving a password or a touch trace to unlock the lock mode while executing the video album application. 3. The method of claim 2,
The control unit,
When receiving a control command for releasing the sleep mode, the camera unit is activated to acquire an image using the camera unit,
And displaying the obtained image on the display unit together with the lock screen and the preview image. The method of claim 5, wherein
The control unit,
Acquiring a plurality of images continuously using the camera unit while activating the camera unit,
And at least one of the obtained plurality of images is displayed on the display unit together with the lock screen and the preview image. 3. The method of claim 2,
The control unit,
And the setting information of the camera unit is changed based on the touch input for the preview image. The method of claim 7, wherein
The setting information of the camera unit includes at least one of setting information about flash on / off, contrast, brightness, saturation, zoom in, zoom out, white balance, and resolution. 3. The method of claim 2,
The control unit,
And changing graphic information of the preview image based on a touch input to the preview image. The method of claim 9,
The graphic information of the preview image may include at least one of setting information on the size, position, and transparency of the preview image. 3. The method of claim 2,
The control unit,
And the preview image is displayed in an area different from an area where the lock screen is displayed or overlapped with an area where the lock screen is displayed. The method of claim 11,
The control unit,
When the virtual keypad for inputting the password in the lock mode is displayed on the display unit, the preview image is displayed in an area different from the area where the virtual keypad is displayed, or overlapped with an area where the virtual keypad is displayed. Mobile terminal, characterized in that. 13. The method of claim 12,
The control unit,
And when the preview image is displayed to overlap the area where the virtual keypad is displayed, displaying the preview image in a translucent manner. 3. The method of claim 2,
The camera unit includes:
Including a plurality of cameras,
The control unit,
And a preview image corresponding to each of the plurality of cameras on the display unit together with the lock screen. 15. The method of claim 14,
The control unit,
And when a touch input of at least one of the preview images is detected, an image is acquired by using a camera corresponding to the at least one touched image. Displaying a lock screen on a display unit in a lock mode for restricting input of a control command for an application;
Acquiring an image using a camera unit in the lock mode; And
And displaying the preview image of the camera unit on the display unit together with the lock screen. 17. The method of claim 16,
Receiving a control command for releasing a sleep mode through a user input unit; And
If the sleep mode is released, displaying the lock screen on the display unit and activating the camera unit. The method of claim 17,
Acquiring an image using the camera unit when a touch input for the preview image is detected; And
And displaying the obtained image on the display unit together with the lock screen and the preview image.

Images