Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals are used to designate identical or similar elements, and redundant description thereof will be omitted. 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. In the following description of the embodiments of the present invention, a detailed description of related arts will be omitted when it is determined that the gist of the embodiments disclosed herein may be blurred. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. , ≪ / RTI > equivalents, and alternatives.
Terms including ordinals, such as first, second, etc., may be used to describe various elements, but the elements are not limited to these terms. The terms are used only for the purpose of distinguishing one component from another.
It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.
The singular expressions include plural expressions unless the context clearly dictates otherwise.
In the present application, the terms "comprises", "having", and the like are used to specify that a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.
The mobile terminal described in this specification includes a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), a navigation device, a slate PC A tablet PC, an ultrabook, a wearable device such as a smartwatch, a smart glass, and a head mounted display (HMD). have.
However, it will be appreciated by 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, a digital signage, and the like, will be.
1A to 1C are block diagrams for explaining a mobile terminal according to the present invention, and FIGS. 1B and 1C are conceptual diagrams showing an example of a mobile terminal according to the present invention in different directions.
The mobile terminal 100 includes a wireless communication unit 110, an input unit 120, a sensing unit 140, an output unit 150, an interface unit 160, a memory 170, a control unit 180, and a power supply unit 190 ), And the like. The components shown in FIG. 1A are not essential for implementing a mobile terminal, so that the mobile terminal described herein may have more or fewer components than the components listed above.
The wireless communication unit 110 may be connected between the mobile terminal 100 and the wireless communication system or between the mobile terminal 100 and another mobile terminal 100 or between the mobile terminal 100 and the external server 100. [ Lt; RTI ID = 0.0 > wireless < / RTI > In addition, the wireless communication unit 110 may include one or more modules for connecting the mobile terminal 100 to one or more networks.
The wireless communication unit 110 may include at least one of 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 input unit 120 includes a camera 121 or an image input unit for inputting a video signal, a microphone 122 for inputting an audio signal, an audio input unit, a user input unit 123 for receiving information from a user A touch key, a mechanical key, and the like). The voice data or image data collected by the input unit 120 may be analyzed and processed by a user's control command.
The sensing unit 140 may include at least one sensor for sensing at least one of information in the mobile terminal, surrounding environment information surrounding the mobile terminal, and user information. For example, the sensing unit 140 may include a proximity sensor 141, an illumination sensor 142, a touch sensor, an acceleration sensor, a magnetic sensor, A G-sensor, a gyroscope sensor, a motion sensor, an RGB sensor, an infrared sensor, a finger scan sensor, an ultrasonic sensor, A microphone 226, a battery gauge, an environmental sensor (for example, a barometer, a hygrometer, a thermometer, a radiation detection sensor, A thermal sensor, a gas sensor, etc.), a chemical sensor (e.g., an electronic nose, a healthcare sensor, a biometric sensor, etc.), and a color sensor. Meanwhile, the mobile terminal disclosed in the present specification can combine and utilize information sensed by at least two of the sensors.
The output unit 150 includes at least one of a display unit 151, an acoustic output unit 152, a haptic tip module 153, and a light output unit 154 to generate an output related to visual, auditory, can do. The display unit 151 may have a mutual layer structure with the touch sensor or may be integrally formed to realize a touch screen. The touch screen may function as a user input unit 123 that provides an input interface between the mobile terminal 100 and a user and may provide an output interface between the mobile terminal 100 and a user.
The interface unit 160 serves as a path to various types of external devices connected to the mobile terminal 100. The interface unit 160 is connected to a device having a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, And may include at least one of a port, an audio I / O port, a video I / O port, and an earphone port. In the mobile terminal 100, corresponding to the connection of the external device to the interface unit 160, it is possible to perform appropriate control related to the connected external device.
In addition, the memory 170 stores data supporting various functions of the mobile terminal 100. The memory 170 may store a plurality of application programs or applications running on the mobile terminal 100, data for operation of the mobile terminal 100, and commands. At least some of these applications may be downloaded from an external server via wireless communication. Also, at least a part of these application programs may exist on the mobile terminal 100 from the time of shipment for the basic functions (e.g., telephone call receiving function, message receiving function, and calling function) of the mobile terminal 100. Meanwhile, the application program may be stored in the memory 170, installed on the mobile terminal 100, and may be operated by the control unit 180 to perform the operation (or function) of the mobile terminal.
In addition to the operations related to the application program, the control unit 180 typically controls the overall operation of the mobile terminal 100. The control unit 180 may process or process signals, data, information, and the like input or output through the above-mentioned components, or may drive an application program stored in the memory 170 to provide or process appropriate information or functions to the user.
In addition, the controller 180 may control at least some of the components illustrated in FIG. 1A in order to drive an application program stored in the memory 170. FIG. In addition, the controller 180 may operate at least two of the components included in the mobile terminal 100 in combination with each other for driving the application program.
The power supply unit 190 receives external power and internal power under the control of the controller 180 and supplies power to the components included in the mobile terminal 100. The power supply unit 190 includes a battery, which may be an internal battery or a replaceable battery.
At least some of the components may operate in cooperation with one another to implement a method of operation, control, or control of a mobile terminal according to various embodiments described below. In addition, the operation, control, or control method of the mobile terminal may be implemented on the mobile terminal by driving at least one application program stored in the memory 170. [
Hereinafter, the various components of the mobile terminal 100 will be described in detail with reference to FIG. 1A.
First, referring to the wireless communication unit 110, the broadcast receiving module 111 of the wireless communication unit 110 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. Two or more broadcast receiving modules may be provided to the mobile terminal 100 for simultaneous broadcast reception or broadcast channel switching for at least two broadcast channels.
The mobile communication module 112 may be a mobile communication module or a mobile communication module such as a mobile communication module or a mobile communication module that uses technology standards or a communication method (e.g., Global System for Mobile communication (GSM), Code Division Multi Access (CDMA), Code Division Multi Access 2000 (Enhanced Voice-Data Optimized or Enhanced Voice-Data Only), Wideband CDMA (WCDMA), High Speed Downlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA), Long Term Evolution (LTE) And an external terminal, or a server on a mobile communication network established according to a long term evolution (e. G., Long Term Evolution-Advanced).
The wireless signal may include various types of data depending on a voice call signal, a video call signal or a text / multimedia message transmission / reception.
The wireless Internet module 113 is a module for wireless Internet access, and may be built in or externally attached to the mobile terminal 100. The wireless Internet module 113 is configured to transmit and receive a wireless signal in a communication network according to wireless Internet technologies.
Wireless Internet technologies include, for example, wireless LAN (WLAN), wireless fidelity (Wi-Fi), wireless fidelity (Wi-Fi) Direct, DLNA (Digital Living Network Alliance), WiBro Interoperability for Microwave Access, High Speed Downlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA), Long Term Evolution (LTE) and Long Term Evolution-Advanced (LTE-A) 113 transmit and receive data according to at least one wireless Internet technology, including Internet technologies not listed above.
The wireless Internet module 113 for performing a wireless Internet connection through the mobile communication network can be used for wireless Internet access by WiBro, HSDPA, HSUPA, GSM, CDMA, WCDMA, LTE or LTE- May be understood as a kind of the mobile communication module 112.
The short-range communication module 114 is for short-range communication, and includes Bluetooth ™, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB) (Near Field Communication), Wi-Fi (Wireless-Fidelity), Wi-Fi Direct, and Wireless USB (Wireless Universal Serial Bus) technology. The short-range communication module 114 is connected to the mobile terminal 100 and the wireless communication system through the wireless area networks, between the mobile terminal 100 and another mobile terminal 100, or between the mobile terminal 100 ) And the other mobile terminal 100 (or the external server). The short-range wireless communication network may be a short-range wireless personal area network.
Here, the other mobile terminal 100 may be a wearable device (e.g., a smartwatch, a smart glass, etc.) capable of interchanging data with the mobile terminal 100 according to the present invention (smart glass), HMD (head mounted display)). The short range communication module 114 may detect (or recognize) a wearable device capable of communicating with the mobile terminal 100 around the mobile terminal 100. [ If the detected wearable device is a device authenticated to communicate with the mobile terminal 100 according to the present invention, the control unit 180 may transmit at least a part of the data processed by the mobile terminal 100 to the short- 114 to the wearable device. Therefore, the user of the wearable device can use the data processed by the mobile terminal 100 through the wearable device. For example, according to this, when a telephone is received in the mobile terminal 100, the user performs a telephone conversation via the wearable device, or when a message is received in the mobile terminal 100, It is possible to check the message.
The position information module 115 is a module for obtaining the position (or current position) of the mobile terminal, and a representative example thereof is a Global Positioning System (GPS) module or a Wireless Fidelity (WiFi) module. For example, when the mobile terminal utilizes the GPS module, it can acquire the position of the mobile terminal by using a signal transmitted from the GPS satellite. As another example, when the mobile terminal utilizes the Wi-Fi module, it can acquire the position of the mobile terminal based on information of a wireless access point (AP) that transmits or receives the wireless signal with the Wi-Fi module. Optionally, the location information module 115 may perform any of the other functions of the wireless communication unit 110 to obtain data relating to the location of the mobile terminal, in addition or alternatively. The location information module 115 is a module used to obtain the location (or current location) of the mobile terminal, and is not limited to a module that directly calculates or obtains the location of the mobile terminal.
Next, the input unit 120 is for inputting image information (or signal), audio information (or signal), data, or information input from a user. For inputting image information, Or a plurality of cameras 121 may be provided. The camera 121 processes image frames such as still images or moving images obtained by the image sensor in the video communication mode or the photographing mode. The processed image frame may be displayed on the display unit 151 or stored in the memory 170. [ A plurality of cameras 121 provided in the mobile terminal 100 may be arranged to have a matrix structure and various angles or foci may be provided to the mobile terminal 100 through the camera 121 having the matrix structure A plurality of pieces of image information can be input. In addition, the plurality of cameras 121 may be arranged in a stereo structure to acquire a left image and a right image for realizing a stereoscopic image.
The microphone 122 processes the external acoustic signal into electrical voice data. The processed voice data can be utilized variously according to a function (or a running application program) being executed in the mobile terminal 100. Meanwhile, the microphone 122 may be implemented with various noise reduction algorithms for eliminating noise generated in receiving an external sound signal.
The user input unit 123 is for receiving information from a user and when the information is inputted through the user input unit 123, the control unit 180 can control the operation of the mobile terminal 100 to correspond to the input information . The user input unit 123 may include a mechanical input means (or a mechanical key such as a button located on the front, rear or side of the mobile terminal 100, a dome switch, a jog wheel, Jog switches, etc.) and touch-type input means. For example, the touch-type input means may comprise a virtual key, a soft key or a visual key displayed on the touch screen through software processing, And a touch key disposed on the touch panel. Meanwhile, the virtual key or the visual key can be displayed on a touch screen having various forms, for example, a graphic, a text, an icon, a video, As shown in FIG.
Meanwhile, the sensing unit 140 senses at least one of information in the mobile terminal, surrounding environment information surrounding the mobile terminal, and user information, and generates a corresponding sensing signal. The control unit 180 may control the driving or operation of the mobile terminal 100 or may perform data processing, function or operation related to the application program installed in the mobile terminal 100 based on the sensing signal. Representative sensors among various sensors that may be included in the sensing unit 140 will be described in more detail.
First, the proximity sensor 141 refers to a sensor that detects the presence of an object approaching a predetermined detection surface, or the presence of an object in the vicinity of the detection surface, without mechanical contact by using electromagnetic force or infrared rays. The proximity sensor 141 may be disposed in the inner area of the mobile terminal or in proximity to the touch screen, which is covered by the touch screen.
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. In the case where the touch screen is electrostatic, the proximity sensor 141 can be configured to detect the proximity of the object with a change of the electric field along the proximity of the object having conductivity. In this case, the touch screen (or touch sensor) itself may be classified as a proximity sensor.
On the other hand, for convenience of explanation, the act of recognizing that the object is located on the touch screen in proximity with no object touching the touch screen is referred to as "proximity touch & The act of actually touching an object on the screen is called a "contact touch. &Quot; The position at which the object is closely touched on the touch screen means a position where the object corresponds to the touch screen vertically when the object is touched. The proximity sensor 141 can detect 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, have. Meanwhile, the control unit 180 processes data (or information) corresponding to the proximity touch operation and the proximity touch pattern sensed through the proximity sensor 141 as described above, and further provides visual information corresponding to the processed data It can be output on the touch screen. Furthermore, the control unit 180 can control the mobile terminal 100 such that different operations or data (or information) are processed according to whether the touch to the same point on the touch screen is a proximity touch or a touch touch .
The touch sensor uses a touch (or touch input) applied to the touch screen (or the display unit 151) by using at least one of various touch methods such as a resistance film type, a capacitive type, an infrared type, an ultrasonic type, Detection.
For example, the touch sensor may be configured to convert a change in a pressure applied to a specific portion of the touch screen or a capacitance generated in a specific portion to an electrical input signal. The touch sensor may be configured to detect a position, an area, a pressure at the time of touch, a capacitance at the time of touch, and the like where a touch object touching the touch screen is touched on the touch sensor. Here, the touch object may be a finger, a touch pen, a stylus pen, a pointer, or the like as an object to which a touch is applied to the touch sensor.
Thus, when there is a touch input to the touch sensor, the corresponding signal (s) is sent to the touch controller. The touch controller processes the signal (s) and transmits the corresponding data to the controller 180. Thus, the control unit 180 can know which area of the display unit 151 is touched or the like. Here, the touch controller may be a separate component from the control unit 180, and may be the control unit 180 itself.
On the other hand, the control unit 180 may perform different controls or perform the same control according to the type of the touch object touching the touch screen (or a touch key provided on the touch screen). Whether to perform different controls or to perform the same control according to the type of the touch object may be determined according to the current state of the mobile terminal 100 or an application program being executed.
On the other hand, the touch sensors and the proximity sensors discussed above can be used independently or in combination to provide a short touch (touch), a long touch, a multi touch, a drag touch ), Flick touch, pinch-in touch, pinch-out touch, swipe touch, hovering touch, and the like. Touch can be sensed.
The ultrasonic sensor can recognize the position information of the object to be sensed by using ultrasonic waves. Meanwhile, the controller 180 can calculate the position of the wave generating source through the information sensed by the optical sensor and the plurality of ultrasonic sensors. The position of the wave source can be calculated using the fact that the light is much faster than the ultrasonic wave, that is, the time when the light reaches the optical sensor is much faster than the time the ultrasonic wave reaches the ultrasonic sensor. More specifically, the position of the wave generating source can be calculated using the time difference with the time when the ultrasonic wave reaches the reference signal.
The camera 121 includes at least one of a camera sensor (for example, a CCD, a CMOS, etc.), a photo sensor (or an image sensor), and a laser sensor.
The camera 121 and the laser sensor may be combined with each other to sense a touch of the sensing object with respect to the three-dimensional stereoscopic image. The photosensor can be laminated to the display element, which is adapted to scan the movement of the object to be detected proximate to the touch screen. More specifically, the photosensor mounts photo diodes and TRs (Transistors) in a row / column and scans the contents loaded on the photosensor using an electrical signal that varies according to the amount of light applied to the photo diode. That is, the photo sensor performs coordinate calculation of the object to be sensed according to the amount of change of light, and position information of the object to be sensed can be obtained through the calculation.
The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, the display unit 151 may display execution screen information of an application program driven by the mobile terminal 100 or UI (User Interface) and GUI (Graphic User Interface) information according to the execution screen information .
In addition, the display unit 151 may be configured as a stereoscopic display unit for displaying a stereoscopic image.
In the stereoscopic display unit, a three-dimensional display system such as a stereoscopic system (glasses system), an autostereoscopic system (no-glasses system), and a projection system (holographic system) can be applied.
The sound output unit 152 may output audio data received from the wireless communication unit 110 or stored in the memory 170 in a call signal reception mode, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, The sound output unit 152 also outputs sound signals related to functions (e.g., call signal reception sound, message reception sound, etc.) performed in the mobile terminal 100. [ The audio output unit 152 may include a receiver, a speaker, a buzzer, and the like.
The haptic module 153 generates various tactile effects that the user can feel. A typical example of the haptic effect generated by the haptic module 153 may be vibration. The intensity and pattern of the vibration generated in the haptic module 153 can be controlled by the user's selection or the setting of the control unit. For example, the haptic module 153 may synthesize and output different vibrations or sequentially output the vibrations.
In addition to vibration, the haptic module 153 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 suction force of the air through the injection port or the suction port, a touch on the skin surface, 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 153 can transmit the tactile effect through the direct contact, and the tactile effect can be felt by the user through the muscles of the finger or arm. The haptic module 153 may include two or more haptic modules 153 according to the configuration of the mobile terminal 100.
The light output unit 154 outputs a signal for notifying the occurrence of an event using the light of the light source of the mobile terminal 100. Examples of events that occur in the mobile terminal 100 may include message reception, call signal reception, missed call, alarm, schedule notification, email reception, information reception through an application, and the like.
The signal output from the light output unit 154 is implemented as the mobile terminal emits light of a single color or a plurality of colors to the front or rear surface. The signal output may be terminated by the mobile terminal detecting the event confirmation of the user.
The interface unit 160 serves as a path for communication with all external devices connected to the mobile terminal 100. The interface unit 160 receives data from an external device or supplies power to each component in the mobile terminal 100 or transmits data in the mobile terminal 100 to an external device. For example, a port for connecting a device equipped with a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, an audio I / O port, a video I / O port, an earphone port, and the like may be included in the interface unit 160.
The identification module is a chip for storing various information for authenticating the use right of the mobile terminal 100 and includes a user identification module (UIM), a subscriber identity module (SIM) A 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 interface unit 160. [
The interface unit 160 may be a path through which power from the cradle is supplied to the mobile terminal 100 when the mobile terminal 100 is connected to an external cradle, And various command signals may be transmitted to the mobile terminal 100. The various command signals or the power source input from the cradle may be operated as a signal for recognizing that the mobile terminal 100 is correctly mounted on the cradle.
The memory 170 may store a program for the operation of the controller 180 and temporarily store input / output data (e.g., a phone book, a message, a still image, a moving picture, etc.). The memory 170 may store data on vibration and sound of various patterns outputted when a touch is input on the touch screen.
The memory 170 may be a flash memory type, a hard disk type, a solid state disk type, an SDD type (Silicon Disk Drive type), a multimedia card micro type ), Card type memory (e.g., SD or XD memory), random access memory (RAM), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read memory, a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, and / or an optical disk. The mobile terminal 100 may operate in association with a web storage that performs the storage function of the memory 170 on the Internet.
Meanwhile, as described above, the control unit 180 controls the operations related to the application program and the general operation of the mobile terminal 100. [ For example, when the state of the mobile terminal meets a set condition, the control unit 180 can execute or release a lock state for restricting input of a user's control command to applications.
In addition, the control unit 180 performs control and processing related to voice communication, data communication, video call, or the like, or performs pattern recognition processing to recognize handwriting input or drawing input performed on the touch screen as characters and images, respectively . Further, the controller 180 may control any one or a plurality of the above-described components in order to implement various embodiments described below on the mobile terminal 100 according to the present invention.
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 power supply unit 190 includes a battery, the battery may be an internal battery configured to be chargeable, and may be detachably coupled to the terminal body for charging or the like.
In addition, the power supply unit 190 may include a connection port, and the connection port may be configured as an example of an interface 160 through which an external charger for supplying power for charging the battery is electrically connected.
As another example, the power supply unit 190 may be configured to charge the battery in a wireless manner without using the connection port. In this case, the power supply unit 190 may use at least one of an inductive coupling method based on a magnetic induction phenomenon from an external wireless power transmission apparatus and a magnetic resonance coupling method based on an electromagnetic resonance phenomenon Power can be delivered.
In the following, various embodiments may be embodied in a recording medium readable by a computer or similar device using, for example, software, hardware, or a combination thereof.
Referring to FIGS. 1B and 1C, the disclosed mobile terminal 100 includes a bar-shaped terminal body. However, the present invention is not limited thereto and can be applied to various structures such as a folder type, a flip type, a slide type, a swing type, and a swivel type in which a watch type, a clip type, a glass type or two or more bodies are relatively movably coupled . A description of a particular type of mobile terminal, although relevant to a particular type of mobile terminal, is generally applicable to other types of mobile terminals.
Here, the terminal body can be understood as a concept of referring to the mobile terminal 100 as at least one aggregate.
The mobile terminal 100 includes a case (for example, a frame, a housing, a cover, and the like) that forms an appearance. As shown, the mobile terminal 100 may include a front case 101 and a rear case 102. Various electronic components are disposed in the inner space formed by the combination of the front case 101 and the rear case 102. At least one middle case may be additionally disposed between the front case 101 and the rear case 102.
A display unit 151 is disposed on a front surface of the terminal body to output information. The window 151a of the display unit 151 may be mounted on the front case 101 to form a front surface of the terminal body together with the front case 101. [
In some cases, electronic components may also be mounted on the rear case 102. Electronic parts that can be mounted on the rear case 102 include detachable batteries, an identification module, a memory card, and the like. In this case, a rear cover 103 for covering the mounted electronic components can be detachably coupled to the rear case 102. Therefore, when the rear cover 103 is separated from the rear case 102, the electronic parts mounted on the rear case 102 are exposed to the outside.
As shown, when the rear cover 103 is coupled to the rear case 102, a side portion of the rear case 102 can be exposed. In some cases, the rear case 102 may be completely covered by the rear cover 103 during the engagement. Meanwhile, the rear cover 103 may be provided with an opening for exposing the camera 121b and the sound output unit 152b to the outside.
These cases 101, 102, and 103 may be formed by injection molding of synthetic resin or may be formed of metal such as stainless steel (STS), aluminum (Al), titanium (Ti), or the like.
The mobile terminal 100 may be configured such that one case provides the internal space, unlike the above example in which a plurality of cases provide an internal space for accommodating various electronic components. In this case, a unibody mobile terminal 100 in which synthetic resin or metal is connected from the side to the rear side can be realized.
Meanwhile, the mobile terminal 100 may include a waterproof unit (not shown) for preventing water from penetrating into the terminal body. For example, the waterproof portion is provided between the window 151a and the front case 101, between the front case 101 and the rear case 102, or between the rear case 102 and the rear cover 103, And a waterproof member for sealing the inside space of the oven.
The mobile terminal 100 is provided with a display unit 151, first and second sound output units 152a and 152b, a proximity sensor 141, an illuminance sensor 142, a color sensor 143, an optical output unit 154, First and second cameras 121a and 121b, first and second operation units 123a and 123b, a microphone 122, an interface unit 160, and the like.
1B and 1C, a display unit 151, a first sound output unit 152a, a proximity sensor 141, an illuminance sensor 142, an optical output unit (not shown) A second operation unit 123b, a microphone 122 and an interface unit 160 are disposed on a side surface of the terminal body, The second camera 121b, and the color sensor 143 are disposed on the rear surface of the mobile terminal 100 as an example.
However, these configurations are not limited to this arrangement. These configurations may be excluded or replaced as needed, or placed on different planes. For example, the first operation unit 123a may not be provided on the front surface of the terminal body, and the second sound output unit 152b may be provided on the side surface of the terminal body rather than the rear surface of the terminal body.
The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, the display unit 151 may display execution screen information of an application program driven by the mobile terminal 100 or UI (User Interface) and GUI (Graphic User Interface) information according to the execution screen information .
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.
In addition, the display unit 151 may exist in two or more depending on the embodiment of the mobile terminal 100. In this case, the mobile terminal 100 may be provided with a plurality of display portions spaced apart from each other or disposed integrally with one another, or may be disposed on different surfaces, respectively.
The display unit 151 may include a touch sensor that senses a touch with respect to the display unit 151 so that a control command can be received by a touch method. When a touch is made to the display unit 151, the touch sensor senses the touch, and the control unit 180 generates a control command corresponding to the touch based on the touch. The content input by the touch method may be a letter or a number, an instruction in various modes, a menu item which can be designated, and the like.
The touch sensor may be a film having a touch pattern and disposed between the window 151a and a display (not shown) on the rear surface of the window 151a, or may be a metal wire . Alternatively, the touch sensor may be formed integrally with the display. For example, the touch sensor may be disposed on a substrate of the display or inside the display.
In this way, the display unit 151 can form a touch screen together with the touch sensor. In this case, the touch screen can function as a user input unit 123 (see FIG. 1A). In some cases, the touch screen may replace at least some functions of the first operation unit 123a.
The first sound output unit 152a may be implemented as a receiver for transmitting a call sound to a user's ear and the second sound output unit 152b may be implemented as a loud speaker for outputting various alarm sounds or multimedia playback sounds. ). ≪ / RTI >
The window 151a of the display unit 151 may be provided with an acoustic hole for emitting the sound generated from the first acoustic output unit 152a. However, the present invention is not limited to this, and the sound may be configured to be emitted along an assembly gap (for example, a gap between the window 151a and the front case 101) between the structures. In this case, the appearance of the mobile terminal 100 can be made more simple because the hole formed independently for the apparent acoustic output is hidden or hidden.
The optical output unit 154 is configured to output light for notifying the occurrence of an event. Examples of the event include a message reception, a call signal reception, a missed call, an alarm, a schedule notification, an email reception, and reception of information through an application. The control unit 180 may control the light output unit 154 to terminate the light output when the event confirmation of the user is detected.
The first camera 121a processes an image frame of a still image or a moving image obtained by the image sensor in the photographing mode or the video communication mode. The processed image frame can be displayed on the display unit 151 and can be stored in the memory 170. [
The first and second operation units 123a and 123b may be collectively referred to as a manipulating portion as an example of a user input unit 123 operated to receive a command for controlling the operation of the mobile terminal 100 have. The first and second operation units 123a and 123b can be employed in any manner as long as the user is in a tactile manner such as touch, push, scroll, or the like. In addition, the first and second operation units 123a and 123b may be employed in a manner that the user operates the apparatus without touching the user through a proximity touch, a hovering touch, or the like.
In this figure, the first operation unit 123a is a touch key, but the present invention is not limited thereto. For example, the first operation unit 123a may be a mechanical key, or a combination of a touch key and a touch key.
The contents input by the first and second operation units 123a and 123b can be variously set. For example, the first operation unit 123a receives a command such as a menu, a home key, a cancellation, a search, and the like, and the second operation unit 123b receives a command from the first or second sound output unit 152a or 152b The size of the sound, and the change of the display unit 151 to the touch recognition mode.
On the other hand, a rear input unit (not shown) may be provided on the rear surface of the terminal body as another example of the user input unit 123. The rear input unit is operated to receive a command for controlling the operation of the mobile terminal 100, and input contents may be variously set. For example, commands such as power on / off, start, end, scrolling, and the like, the size adjustment of the sound output from the first and second sound output units 152a and 152b, And the like can be inputted. The rear input unit may be implemented as a touch input, a push input, or a combination thereof.
The rear input unit may be disposed so as to overlap with the front display unit 151 in the thickness direction of the terminal body. For example, the rear input unit may be disposed at the rear upper end of the terminal body such that when the user holds the terminal body with one hand, the rear input unit can be easily operated using the index finger. However, the present invention is not limited thereto, and the position of the rear input unit may be changed.
When a rear input unit is provided on the rear surface of the terminal body, a new type of user interface using the rear input unit can be realized. When the first operation unit 123a is not disposed on the front surface of the terminal body in place of at least a part of the functions of the first operation unit 123a provided on the front surface of the terminal body, The display unit 151 may be configured as a larger screen.
Meanwhile, the mobile terminal 100 may be provided with a fingerprint recognition sensor for recognizing the fingerprint of the user, and the controller 180 may use the fingerprint information sensed through the fingerprint recognition sensor as authentication means. The fingerprint recognition sensor may be embedded in the display unit 151 or the user input unit 123.
The microphone 122 is configured to receive the user's voice, other sounds, and the like. The microphone 122 may be provided at a plurality of locations to receive stereophonic sound.
The interface unit 160 is a path through which the mobile terminal 100 can be connected to an external device. For example, the interface unit 160 may include a connection terminal for connection with another device (for example, an earphone or an external speaker), a port for short-range communication (for example, an infrared port (IrDA Port), a Bluetooth port A wireless LAN port, or the like), or a power supply terminal for supplying power to the mobile terminal 100. The interface unit 160 may be implemented as a socket for receiving an external card such as a SIM (Subscriber Identification Module) or a UIM (User Identity Module) or a memory card for storing information.
And a second camera 121b may be disposed on a rear surface of the terminal body. In this case, the second camera 121b has a photographing direction which is substantially opposite to that of the first camera 121a.
The second camera 121b may include a plurality of lenses arranged along at least one line. The plurality of lenses may be arranged in a matrix form. Such a camera can be named an 'array camera'. When the second camera 121b is configured as an array camera, images can be taken in various ways using a plurality of lenses, and a better quality image can be obtained.
The flash 124 may be disposed adjacent to the second camera 121b. The flash 124 shines light toward the subject when the subject is photographed by the second camera 121b.
And a second sound output unit 152b may be additionally disposed in the terminal body. The second sound output unit 152b may implement a stereo function together with the first sound output unit 152a and may be used for implementing a speakerphone mode in a call.
The terminal body may be provided with at least one antenna for wireless communication. The antenna may be embedded in the terminal body or formed in the case. For example, an antenna constituting a part of the broadcast receiving module 111 (see FIG. 1A) may be configured to be able to be drawn out from the terminal body. Alternatively, the antenna may be formed in a film type and attached to the inner surface of the rear cover 103, or a case including a conductive material may be configured to function as an antenna.
The terminal body is provided with a power supply unit 190 (see FIG. 1A) for supplying power to the mobile terminal 100. The power supply unit 190 may include a battery 191 built in the terminal body or detachable from the outside of the terminal body.
The battery 191 may be configured to receive power through a power cable connected to the interface unit 160. In addition, the battery 191 may be configured to be wirelessly chargeable through a wireless charger. The wireless charging may be implemented by a magnetic induction method or a resonance method (magnetic resonance method).
The rear cover 103 is configured to be coupled to the rear case 102 so as to cover the battery 191 to restrict the release of the battery 191 and to protect the battery 191 from external impact and foreign matter . When the battery 191 is detachably attached to the terminal body, the rear cover 103 may be detachably coupled to the rear case 102.
The mobile terminal 100 may be provided with an accessory that protects the appearance or supports or expands the function of the mobile terminal 100. [ One example of such an accessory is a cover or pouch that covers or accommodates at least one side of the mobile terminal 100. [ The cover or pouch may be configured to interlock with the display unit 151 to expand the function of the mobile terminal 100. Another example of an accessory is a touch pen for supplementing or extending a touch input to the touch screen.
In the meantime, the color sensor 143 may be provided. The color sensor 143 can acquire color information and various information of the surrounding or external object. In this specification, the color sensor 143 includes an RGB channel, an infrared (IR) channel, and a clear channel, and can acquire color information, IR information, and clear information around the mobile terminal 100. For example, the color sensor 143 may identify the red, green, and blue of the sensed image through the RGB channel, and may transmit the respective data to the control unit 180. For example, the color sensor 143 may sense an infrared (IR) signal around the mobile terminal 100 through the IR channel, and may transmit the IR data to the controller 180. In addition, for example, the color sensor 143 can sense the amount of light around the mobile terminal 100 through the clear channel, and transmit the clear data to the control unit 180.
Meanwhile, the color sensor 143 may be disposed on the rear side of the terminal body, and may be disposed in the same direction as the second camera 121b. The angle of view of the color sensor 143 may be wider than the angle of view of the second camera 121b. For example, the angle of view of the color sensor 143 may correspond to +/- 100 degrees.
Hereinafter, embodiments related to a control method that can be implemented in a mobile terminal configured as above will be described with reference to the accompanying drawings. 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.
2 is a flowchart showing a first embodiment of a control method of a mobile terminal according to the present invention. More specifically, FIG. 2 shows an automatic white balance (AWB) method of a mobile terminal using a color sensor. 2 described below can be controlled by the control unit 180 of the mobile terminal 100 shown in FIG.
First, the mobile terminal 100 may sense an image by the camera 121 (S210). Here, the camera 121 may correspond to the second camera 121b located on the rear surface of the mobile terminal 100. [ Although not shown in FIG. 2, the mobile terminal 100 may include a step of executing a camera application before step S210. This will be described with reference to FIG.
3 is a view showing an image sensed by a mobile terminal according to the present invention. As shown in FIG. 3, when the camera application is executed, the mobile terminal 100 can sense the image in the field of view area 210 of the camera 121. [ Here, the angle of view field represents the range of horizontal and vertical viewing angles that can be included in a certain screen when sensing an image. For example, the angle of view of the camera 121 may correspond to +/- 75 degrees.
Referring again to FIG. 2, the mobile terminal 100 may sense the first RGB data, the first IR data, and the first clear data by the color sensor 143 (S220). As described above with reference to FIG. 1, the color sensor 143 may be provided on the rear surface of the mobile terminal 100. The angle of view of the color sensor 143 may be wider than the angle of view of the camera 121. The first RGB data may be different from the RGB data sensed by the camera 121 since the angle of view of the color sensor 143 is wider than that of the camera 121. [ Also, the first IR data and the first clear data may correspond to the data sensed through the IR channel and the clear channel of the color sensor 143, respectively. In FIG. 2, steps S210 and S220 may be performed independently of the order.
Next, the mobile terminal 100 can identify the photographing condition of the sensed image based on the ratio of the value of the first IR data and the value of the first clear data (S230). More specifically, when the brightness of the sensed image corresponds to a predetermined brightness range, the mobile terminal 100 can identify the photographing condition based on the first IR / clear ratio.
As an example, the predetermined brightness range may indicate that there is no light source in the sensed image. Here, the light source represents an object or tool emitting light. For example, the light source may include sunlight, fluorescent light, incandescent light, and the like. As another example, the predetermined brightness range may correspond to a case where the brightness of the sensed image is darker than the first brightness. The first brightness may correspond to 100 lux and may be variously changed according to the setting. On the other hand, the ratio of the value of the IR data and the value of the clear data can represent the ratio (IR / clear ratio) of the IR data divided by the value of the clear data. In this regard, description will be made with reference to Fig.
4 is a diagram showing a ratio of a value of IR data and a value of clear data of an image sensed by a mobile terminal according to the present invention. More specifically, FIG. 4 may show an IR / clear ratio in a sensing condition without a light source in the sensed image. For example, referring to FIG. 4A, in the absence of a light source, the IR / clear ratio of the sidewalk block may correspond to 0.837. Also, for example, referring to FIG. 4A, the IR / clear ratio of the sky in the absence of a light source may correspond to 0.404. Also, for example, referring to FIG. 4A, the IR / clear ratio of the turf may be 0.636 in the absence of a light source.
Referring again to FIG. 2, the mobile terminal 100 can identify the photographing condition of the camera 121 of the current mobile terminal 100 from the IR / clear ratio. This is because IR / clear ratios are different for each subject. For example, in FIG. 4A, if the ratio of the value of the IR data to the value of the clear data is 0.837, the mobile terminal 100 can identify the photographing condition as 'outdoor-sidewalk block' . For example, in FIG. 4A, when the IR / clear ratio is 0.404, the mobile terminal 100 can identify the photographing condition as 'outdoor-sunlight'. In this regard, reference is made to Fig.
5 is a diagram showing a color temperature based on a ratio of a value of IR data and a value of clear data of an image sensed by a mobile terminal according to the present invention. Referring to FIG. 5, depending on the color temperature, the sensed image may have a different IR / clear ratio. In addition, the IR / clear ratio and the color temperature distribution can be variously distributed according to the setting of the mobile terminal 100. [
Referring to FIG. 5, when the IR / clear ratio is 0.25 to 4, the mobile terminal 100 can determine the color of the light source as sunlight. Referring to FIG. 5, when the IR / clear ratio exceeds 2.0, the mobile terminal 100 may determine the color of the light source as incandescent light. That is, the mobile terminal 100 can determine the color of the light source of the sidewalk block in the case where there is no light source having the IR / clear ratio of 0.837 in FIG. 4 (a) as sunlight.
Next, the mobile terminal 100 may adjust the white balance of the sensed image based on the identified photographing condition (S240). More specifically, first, the mobile terminal 100 can determine the color of the light source of the sensed image based on the identified shooting conditions. In addition, the mobile terminal 100 may adjust the white balance of the sensed image based on the color of the determined light source. For example, in FIG. 4 (a), when the sensed image is determined to be an 'outdoor-sunlight' photographing condition, the mobile terminal 100 may adjust the white balance based on the sunlight.
Through the first embodiment, the mobile terminal 100 can adjust the sensed image close to the actual color, based on the IR / clear ratio sensed through the color sensor 143, even when there is no light source in the sensed image have.
6 is a flowchart showing a second embodiment of a control method of a mobile terminal according to the present invention. 6 may be controlled by the control unit 180 of the mobile terminal 100 shown in FIG. 1A. In the embodiment of Fig. 6, the same or corresponding parts as those of the embodiment of Fig. 2 described above are not described in detail.
First, the mobile terminal 100 can sense an image by the camera 121 (S610). Next, the mobile terminal 100 may sense the first RGB data, the first IR data, and the first clear data by the color sensor 143 (S620). Steps S610 and S620 may be performed independently of the order.
Next, the mobile terminal 100 may determine whether the brightness of the sensed image corresponds to a predetermined brightness range (S630). As described above with reference to FIG. 2, the predetermined brightness range may correspond to a case where there is no light source. In this regard, description will be made with reference to Fig. 3 described above.
3 (a) shows a case where the brightness of the sensed image does not correspond to a predetermined brightness range. That is, FIG. 3 (a) may correspond to a case where there is a light source because there is a sun in the sensed image. 3 (b) shows a case where the brightness of the sensed image corresponds to a preset brightness range. That is, FIG. 3B may correspond to a case in which there is no light source because there is no object emitting light like the sun in the sensed image.
6, if the brightness of the sensed image corresponds to a preset brightness range, the mobile terminal 100 determines whether the brightness of the sensed image is within a predetermined brightness range based on the ratio of the value of the first IR data and the value of the first clear data The photographing condition can be identified (S640).
Next, the mobile terminal 100 may determine whether the ratio of the value of the first IR data and the value of the first clear data (hereinafter, the first IR / clear ratio) falls within a predetermined range (S650). Here, the predetermined range of the first IR / clear ratio is set such that the ratio of the IR data value of the first color temperature and the value of the clear data (IR / clear ratio) and the IR / clear ratio of the second color temperature do not overlap Lt; / RTI > For example, the first color temperature may correspond to 3000K as a low color temperature, and the second color temperature may correspond to 5000K as a high color temperature. In this regard, description will be made with reference to Fig. 5 described above.
As shown in FIG. 5, when the IR / clear ratio is 0.15 or less, the color of the light source is a flood light / LED having a low color temperature or a daylight color Floodlight / LED having a high color temperature . Further, when the IR / clear ratio is 0.25 to 4, the color of the light source may correspond to the sunlight having a high color temperature. Further, when the IR / clear ratio is 2.0 or more, the color of the light source may correspond to an incandescent lamp having a low color temperature. Here, when the predetermined range is satisfied, the IR / clear ratio may correspond to 0.25 to 2, or 4 or more. As such, the IR / clear ratio is illustrative and can be changed according to the setting.
In step S650, if the first IR / clear ratio corresponds to the predetermined range, the mobile terminal 100 may adjust the white balance of the sensed image based on the identified imaging condition (S660). More specifically, when the first IR / clear ratio is within a range where the IR / clear ratio of the first color temperature and the IR / clear ratio of the second color temperature do not overlap, The white balance of the sensed image can be adjusted.
For example, as shown in FIG. 5, when the first IR / clear ratio is 0.25 to 2, the mobile terminal 100 can adjust the white balance of the sensed image based on the sunlight. Further, when the first IR / clear ratio is 4 or more, the mobile terminal 100 can adjust the white balance of the sensed image based on the incandescent lamp.
On the other hand, if the first IR / clear ratio does not fall within the preset range, the mobile terminal 100 determines in step S650 whether the sensed image is sensed based on the color distribution of the sensed image obtained from the first RGB data, The white balance of the image can be adjusted (S670). More specifically, when the first IR / clear ratio is within a range where the IR / clear ratio of the first color temperature and the IR / clear ratio of the second color temperature are overlapped with each other, The white balance of the sensed image can be adjusted based on the color distribution of the sensed image and the identified shooting conditions.
As an example, referring to Fig. 4 (b) above, if there is a plant with tree trunks or soil in the sensed image, the first IR / clear ratio may correspond to 1.855 to 2.429. That is, the first IR / clear ratio may correspond to a range in which the IR / clear ratio of the low color temperature overlaps the IR / clear ratio of the high color temperature. Accordingly, the mobile terminal 100 may be difficult to distinguish the color of the light source of the sensed image only by the shooting conditions identified at the first IR / clear ratio. In this case, since the tree trunk or soil color is yellow in the sensed image, the mobile terminal 100 may erroneously recognize the color temperature as a low color temperature such as an incandescent lamp even though the actual light source is sunlight .
Thus, in this case, the mobile terminal 100 may consider the color distribution of the sensed image obtained from the first RGB data as well as the first IR / clear ratio. That is, if the first IR / clear ratio falls within a range of 2 to 4, the mobile terminal 100 can adjust the white balance by determining the color of the light source as sunlight.
6, when the first IR / clear ratio does not fall within a predetermined range, the mobile terminal 100 may transmit the color distribution obtained from the first RGB data and the third RGB data of the camera 121 The white balance of the sensed image may be adjusted based on at least one of the color distributions obtained from the color distribution. Here, the third RGB data may correspond to RGB data that is sensed by the image sensor of the camera 121.
As an example, if the first IR / clear ratio of the color sensor 143 does not correspond to the predetermined range, the mobile terminal 100 multiplies the first RGB data by the weights of the red channel, the green channel, and the blue channel, The color of the light source can be determined based on the magnitude of the summed value. For example, when the value of aR + bG + cB from the first RGB data of the color sensor 143 exceeds 2000 lux (each of a, b, and c represents a weight value), the mobile terminal 100 detects It can be determined that the color of the light source of the image is sunlight and the white balance can be adjusted. Here, the RGB data for determining the color of the light source may correspond to the first RGB data of the color sensor 143 or the third RGB data of the camera 121.
As another example, when the IR / clear ratio of the color sensor 143 does not correspond to the predetermined range, the mobile terminal 100 may determine the color distribution obtained from the first RGB data of the color sensor 143 and the color distribution obtained from the camera 121 The color of the light source can be determined based on the color distribution obtained from the third RGB data of the first RGB data. As described above, the view angle area of the color sensor 143 can be wider than the view angle area of the camera 121. [ For example, the angle of view of the color sensor 143 may be +/- 100 degrees, and the angle of view of the camera 121 may be +/- 75 degrees.
In this case, the color sensor 143 can receive light in a wide area as compared with the camera 121, and can sense colors in a wide area. Therefore, even if the color temperature based on the color distribution obtained from the third RGB data of the camera 121 is determined to be 3000 K, the mobile terminal 100 can obtain the color based on the color distribution obtained from the first RGB data of the color sensor 143 If the temperature is 5000K, the color temperature can be determined to 5000K roll, and the white balance can be adjusted.
Through the second embodiment, the mobile terminal 100 can recover the color similar to the actual color even when the light source is not present in the sensed image and the IR / clear ratio of the first temperature and the second temperature overlap.
If the brightness of the sensed image does not correspond to the predetermined brightness range, the mobile terminal 100 may adjust the white balance of the sensed image based on the first RGB data (S680). As described above, when the brightness of the sensed image does not correspond to the predetermined brightness range, it is possible to indicate a case where the light source exists in the sensed image. In this case, the mobile terminal 100 can adjust the white balance of the sensed image by identifying the color of the light source from the sensed first RGB data with the color sensor 143 facing the light source.
7 is a flowchart showing a third embodiment of a control method of a mobile terminal according to the present invention.
More specifically, FIG. 7 may show a method (AE) in which the mobile terminal 100 automatically corrects the exposure when the external brightness recognized by the camera 121 is abruptly changed. 7 may be controlled by the control unit 180 of the mobile terminal 100 shown in FIG. 1A. In the embodiment of FIG. 7, the same or corresponding parts as those of the embodiment of FIG. 2 described above are not described in detail.
First, the mobile terminal 100 can sense an image by the camera 121 (S710). For example, in the preview mode, the mobile terminal 100 can display the sensed image on the display unit 151 as a preview image. At this time, the preview image may correspond to the image sensed by the camera 121 at the first time interval. For example, the first time interval may correspond to 1/10 second, and may be variously changed according to the setting.
In addition, the mobile terminal 100 may sense the first RGB data, the first IR data, and the first clear data by the color sensor 143 (S720). Steps S710 and S720 may be performed independently of the order.
Next, the mobile terminal 100 may obtain the illuminance value from the first clear data (S730). As described above, the first clear data indicates the amount of light sensed through the clear channel of the color sensor 143, and the mobile terminal 100 can obtain the illuminance value from the first clear data. Here, the illuminance value may correspond to the illuminance in the direction that the camera 121 currently faces.
Next, the mobile terminal 100 may correct the exposure of the sensed image based on the obtained illuminance value (S740). More specifically, when the illuminance value of the preview image changes over a predetermined illuminance value for the second time, the mobile terminal 100 determines the exposure of the sensed image based on the illuminance value obtained from the first clear data Can be corrected. This is because if the external illuminance value is known in advance through the color sensor 143, the camera 121 can quickly find an appropriate exposure. Here, the second time may correspond to 1/12 second, and may be variously changed depending on the setting. In addition, when the light intensity exceeds a preset illuminance value, it may indicate a case where the light is turned off in a bright place or a light is turned on in a dark place.
8 is a view showing exposure correction of a mobile terminal according to the present invention. More specifically, FIG. 8A corresponds to the exposure correction in the case where there is no illumination value obtained from the color sensor 143, and FIG. 8B shows the illumination value obtained from the color sensor 143 It may correspond to the exposure correction in the case of the presence.
Referring to FIG. 8 (a), when the brightness of the screen of the display unit 151 of the mobile terminal 100 is kept bright, the brightness of the screen dims when the light is suddenly turned off. In this case, since the mobile terminal 100 can not know the proper exposure of the camera 121, the brightness of the screen can be adjusted while increasing the exposure time of the camera 121 gradually in four steps. That is, it may take time to find an appropriate exposure of the camera 121. [
Next, referring to FIG. 8B, when the brightness of the screen of the display unit 151 of the mobile terminal 100 is kept bright while the light is suddenly turned off, the brightness of the screen is darkened. At this time, the mobile terminal 100 can obtain the illuminance value from the first clear data. That is, in FIG. 8 (b), the mobile terminal 100 can recognize that the illuminance value is low. In this case, the mobile terminal 100 can recognize the proper exposure of the camera 121, and can adjust the screen brightness while increasing the exposure time of the camera 121 in two steps. That is, since the mobile terminal 100 can recognize the proper exposure of the camera 121, it may take a little time for exposure correction.
Through the third embodiment, the mobile terminal 100 grasps the proper exposure through the color sensor 143, and can rapidly correct the exposure even if the brightness of the environment suddenly changes.
9 is a flowchart showing a fourth embodiment of a control method of a mobile terminal according to the present invention.
9 shows an example in which the mobile terminal 100 automatically adjusts white balance (AWB) and automatically corrects exposure (AE) according to the presence or absence of a shutter rack in the photographing mode of the mobile terminal 100, Can be displayed. 9 may be controlled by the control unit 180 of the mobile terminal 100 shown in FIG. 1A.
9 illustrates an example of capturing an image when the mobile terminal 100 corresponds to a predetermined brightness range. As described above, the predetermined brightness range may correspond to a case where there is no light source in the sensed image.
First, the mobile terminal 100 may detect an image capture signal (S905). More specifically, the mobile terminal 100 may detect an image capture signal while the preview image is being displayed in the preview mode. Here, the image capture signal may be sensed at the user input 123 shown in FIG. 1A.
Next, the mobile terminal 100 may sense the second RGB data, the second IR data, and the second clear data when the image capture signal is detected (S910). Here, the second RGB data may represent the RGB data sensed by the color sensor 143 at the moment when the image capture signal is detected. In addition, the second IR data may represent the IR data sensed by the color sensor 143 at the moment the image capture signal is detected. Further, the second clear data may indicate the clear data sensed by the color sensor 143 at the moment when the image capture signal is detected.
Next, the mobile terminal 100 may determine whether the photographing mode is a mode with a shutter lag (S915). Here, the shutter rack represents the delay time that occurs until the image capture signal is detected and the image is captured.
If it is determined in step S915 that the photographing mode of the mobile terminal 100 is a shutter rack mode, the mobile terminal 100 can be switched from the preview mode to the capture mode (step S920). Here, the preview mode corresponds to a mode in which an image photographed by the camera 121 is resized as a preview image and displayed. The capture mode corresponds to a mode in which an image photographed by the camera 121 is compressed and stored in a format such as JPEG.
Next, the mobile terminal 100 can determine the white balance value based on the ratio of the value of the second IR data and the value of the second clear data (hereinafter referred to as the second IR / clear ratio) (S925). Here, the white balance value may correspond to the color temperature, the color of the light source, and the like. In this regard, as described above in FIG. 2, the mobile terminal 100 can identify the imaging condition of the sensed image based on the second IR / clear ratio. In addition, the mobile terminal 100 may determine the color of the light source of the sensed image from the identified imaging conditions. 3, if the second IR / clear ratio does not correspond to the predetermined range, the mobile terminal 100 determines the color of the light source of the sensed image based on the second RGB data and the identified photographing condition You can decide.
Next, the mobile terminal 100 can determine the exposure value based on the second clear data (S930). Here, the exposure value may correspond to the exposure time. In this regard, as described above in FIG. 7, the mobile terminal 100 may obtain the illuminance value from the second clear data. In addition, the mobile terminal 100 may determine the exposure value of the camera 121 based on the obtained illumination value. Meanwhile, steps S925 and S930 may be performed independently of the order.
Next, the mobile terminal 100 may capture an image based on the determined white balance value and the exposure value (S935). More specifically, in the capture mode, the mobile terminal 100 can capture the sensed image based on the determined white balance value and the exposure value. In addition, the mobile terminal 100 may display the captured image on the display unit 151. FIG.
9, when the mobile terminal 100 has a shutter rack, it is also possible to switch from the preview mode to the capture mode, adjust the white balance and correct the exposure after capturing an image.
On the other hand, if it is determined in step S915 that the photographing mode of the mobile terminal 100 is a mode without the shutter rack, the mobile terminal 100 may determine the white balance value based on the second IR / clear ratio (step S940) . Next, the mobile terminal 100 can determine the exposure value based on the second clear data (S945). Meanwhile, steps S940 and S945 may be performed irrespective of the order.
Next, the mobile terminal 100 may capture an image based on the determined white balance value and the exposure value (S950). Here, the captured image may correspond to the preview image when the capture signal is detected. For example, the captured image may correspond to the image of the immediately following frame when the second RGB data, the second IR data, and the second clear data are detected. In addition, the mobile terminal 100 can display the captured image.
Although not shown in FIG. 9, when the mobile terminal 100 does not have a shutter rack, it is also possible to adjust the white balance and correct the exposure after capturing an image.
10 is a view showing a captured image when the photographing mode of the mobile terminal according to the present invention is a mode with a shutter rack.
More specifically, FIG. 10A shows a captured image in the case where a shutter rack of a mobile terminal is conventionally provided, FIG. 10B shows a captured image of a shutter rack of the mobile terminal of the present disclosure Image. As described above with reference to FIG. 9, FIG. 10 may show a case where the mobile terminal 100 captures an image in a predetermined brightness range. In addition, for example, FIG. 10 may correspond to a very dark state of the mobile terminal 100. For example, a very dark condition can be less than 10 lux.
Referring to FIGS. 10A and 10B, the mobile terminal 100 can not display an image in the view angle area on the display unit 151 as a preview mode until the image capture signal is detected . This is because it is difficult for the camera 121 to have a sufficient exposure time to display the sensed image in a very dark environment.
Further, since the mobile terminal 100 can not have a sufficient exposure time, the mobile terminal 100 can not continuously display the image in the field of view in the preview mode even if the white balance is automatically adjusted and the exposure is automatically corrected.
In this case, when the image capture signal is detected, referring to FIG. 10 (a), since the mobile terminal 100 can not have a sufficient exposure time, the image in the field of view area can not be captured even in the capture mode. On the other hand, in the present specification, the mobile terminal 100 can provide a method of capturing an image in the field of view of the camera 121 even in a very dark situation.
As described above, in this specification, the mobile terminal 100 may have a separate color sensor 143 in addition to the camera 121. [ 10 (b), first, the mobile terminal 100 transmits the second RGB data, the second IR data, and the second clear data at the time of detec- tion of the capture signal by using the color sensor 143, You can tecture. In addition, the mobile terminal 100 may determine an appropriate exposure value for capturing an image in the field of view area based on the sensed data and determine a white balance value. That is, the mobile terminal 100 is able to capture an image in the field of view area, as shown in Fig. 10 (b), even in a very dark situation.
11 is a view showing a captured image when the photographing mode of the mobile terminal according to the present invention is a mode without a shutter rack.
More specifically, FIG. 11 (a) shows a captured image in the absence of a shutter rack of a conventional mobile terminal, and FIG. 11 (b) Image. As described above with reference to FIG. 9, FIG. 11 may show a case where the mobile terminal 100 captures an image in a predetermined brightness range. 11, the periphery of the mobile terminal 100 may correspond to a very dark state.
11, in the case of FIGS. 11A and 11B, in a very dark state, the mobile terminal 100 displays the image in the view angle area on the display unit 151 as a preview image I can not.
In this case, when the image capture signal is detected, referring to FIG. 11A, since the mobile terminal 100 can not have a sufficient exposure time, it is possible to capture an image in the image area in the capture mode I will not. On the other hand, referring to FIG. 11 (b), the mobile terminal 100 of the present disclosure determines the second RGB data, the second IR data, and the second The clear data can be detected. In addition, the mobile terminal 100 may determine an appropriate exposure value for capturing an image in the field of view area based on the sensed data and determine a white balance value.
Therefore, through the fourth embodiment, the mobile terminal 100 can capture an image regardless of whether there is a shutter rack even in a very dark situation.
12 is a diagram showing a sixth embodiment of a control method of a mobile terminal according to the present invention. More specifically, FIG. 12 shows a method of adjusting the white balance in the automatic white balance (AWB) interface displayed on the mobile terminal 100. 12 may be controlled by the control unit 180 of the mobile terminal 100 shown in FIG. 1A.
First, the mobile terminal 100 may sense the image and the third RGB data by the camera 121 (S1210). As described above, the third RGB data may correspond to the RGB data sensed by the image sensor of the camera 121.
Next, the mobile terminal 100 may sense the first RGB data, the first IR data, and the first clear data by the color sensor 143 (S1220). Here, steps S1210 and S1220 may be performed independently of the order.
Next, the mobile terminal 100 may display an automatic white balance (AWB) interface on the display unit 151 (S1230). Here, the AWB interface may correspond to an interface for performing the AWB function on the image displayed on the display unit 151. In this regard, reference is made to Fig.
13 is a diagram illustrating an automatic white balance (AWB) interface of a mobile terminal according to the present invention. For example, referring to FIG. 13, the AWB interface may display an AWB trigger 230 for performing an AWB function. Here, the AWB trigger may correspond to a soft key for executing the automatic white balance function. For example, the AWB trigger 230 may be displayed near the image capture trigger 220, as shown in FIG.
Referring again to FIG. 12, the mobile terminal 100 may determine whether there is an input signal for the AWB trigger (S1240). For example, the input signal to the AWB trigger may include a voice signal, a touch signal, or the like. Referring to FIG. 13, the input signal to the AWB trigger may correspond to a user's touch input.
If it is determined in step S1240 that there is an input signal for the AWB trigger, the mobile terminal 100 may adjust the white balance of the sensed image based on the first IR / clear ratio by the color sensor 143 (S1250) . 13, the mobile terminal 100 changes the AWB trigger 230 to the " AWB ON " state, and based on the first IR / clear ratio sensed by the color sensor 143 You can adjust the white balance. In addition, the mobile terminal 100 may display the white balance adjusted image on the display unit 151.
If it is determined in step S1240 that there is no input signal for the AWB trigger, the mobile terminal 100 may adjust the white balance based on the third RGB data by the camera 121 (S1260). 13, the mobile terminal 100 can adjust the white balance based on the third RGB data sensed by the camera 121 when the AWB trigger 230 is in the 'AWB OFF' state have. In addition, the mobile terminal 100 may display the white balance adjusted image on the display unit 151.
Through the fifth embodiment, the mobile terminal 100 can restore the color of the image in various ways by the user's choice.
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 a hard disk drive (HDD), a solid state disk (SSD), a silicon disk drive (SDD), a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, , And may also be implemented in the form of a carrier wave (e.g., 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.
