KR20190042353A - Mobile terminal and method for controlling the same - Google Patents

Abstract

The present invention relates to a mobile terminal capable of photographing an image and to a control method thereof. The mobile terminal includes a camera sensor including a plurality of color arrays configured in a plurality of pixels each independently sensing at least one image. The mobile terminal detects horizontal direction phase differences from sensed images at adjacent different horizontal positions among images sensed in the plurality of pixels forming the color arrays, detects vertical direction phase differences from images sensed at adjacent different vertical positions, and sets a focus value of the camera sensor based on the horizontal direction phase differences and the vertical direction phase differences detected from each of the plurality of color arrays.

Description

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

The present invention relates to a mobile terminal capable of capturing an image and a control method thereof.

A terminal can be divided into a mobile terminal (mobile / portable terminal) and a stationary terminal according to whether the terminal can be moved. The mobile terminal can be divided into a handheld terminal and a vehicle mounted terminal according to whether the user can directly carry the mobile terminal.

The functions of mobile terminals are diversified. For example, there are data and voice communication, photographing and video shooting through a camera, voice recording, music file playback through a speaker system, and outputting an image or video on a display unit. Some terminals are equipped with an electronic game play function or a multimedia player function. In particular, modern mobile terminals can receive multicast signals that provide visual content such as broadcast and video or television programs.

Such a terminal has various functions, for example, in the form of a multimedia device having multiple functions such as photographing and photographing of a moving picture, reproduction of a music or video file, reception of a game and broadcasting, etc. .

In order to support and enhance the functionality of such terminals, it may be considered to improve the structural and / or software parts of the terminal.

Conventionally, when capturing an image through a camera, since the focus is automatically adjusted using only the phase difference of images sensed at different horizontal positions, there is a problem that the focus is adjusted only by the phase difference in the horizontal direction.

It is an object of the present invention to provide a mobile terminal and its control method which can automatically adjust the focus based on not only the phase difference in the horizontal direction but also the phase difference in the vertical direction at the time of capturing an image through a camera.

It is another object of the present invention to provide a mobile terminal and a method of controlling the same which can automatically and quickly adjust the focus more accurately than a conventional method of calculating only the phase difference in the horizontal direction while calculating the phase difference in the horizontal direction as well as the vertical direction. The purpose.

According to an aspect of the present invention, there is provided a mobile terminal including a plurality of color arrays each including a plurality of pixels for sensing at least one image, And a controller configured to detect horizontal phase differences from the images sensed at adjacent different horizontal positions among the images sensed at the plurality of pixels forming the color array, And sets a focus value of the camera sensor based on the horizontal direction phase differences and the vertical direction phase differences detected from each of the plurality of color arrays.

In one embodiment, each of the pixels senses one image, and the control unit compares the sensed images in pixels adjacent to each other horizontally in one of the color arrays to detect the horizontal retardations And detects the vertical phase differences by comparing images sensed in pixels adjacent to each other in the vertical direction.

In one embodiment, the color array is composed of four pixels forming two rows and two columns, and the control unit compares the images sensed in the pixels in the same column with each other in the color array The vertical phase differences are calculated, and the sensed images in the pixels of the same row are compared with each other to calculate the horizontal phase differences.

In one embodiment, each of the plurality of pixels comprises at least two subpixels, and the subpixels are each configured to independently sense an image.

In one embodiment, the plurality of pixels include pixels formed of first subpixels for detecting the phase difference in the horizontal direction and pixels formed of second subpixels for detecting the phase difference in the vertical direction Wherein the first subpixels are formed by vertically bisecting the pixels such that each subpixel is adjacent to each other in a horizontal direction within the pixel, and wherein the second subpixels are arranged such that each subpixel is vertically And are formed by bisecting the pixels in the lateral direction so as to be adjacent to each other.

In one embodiment, the color array is characterized in that the subpixels forming each pixel for each row are different from each other, or the subpixels forming each pixel for each column are different from each other.

In one embodiment, half of the pixels constituting the color array are pixels including the first sub-pixels, and the remaining half of the pixels are pixels included in the second sub-pixels.

In one embodiment, the plurality of pixels are divided into four subpixels, each of which is bisected in the horizontal direction and the vertical direction, and the control unit controls, for each pixel constituting the color array, And detects vertical phase differences by comparing sensed images in subpixels adjacent to each other in a direction perpendicular to each other to detect horizontal phase differences and horizontal phase differences detected for each pixel, And setting a focus value of the camera sensor based on the vertical phase differences.

In one embodiment, Deep Trench Isolation (DTI) is formed between each of the plurality of pixels and between each of the at least two subpixels.

According to an aspect of the present invention, there is provided a method for controlling a mobile terminal, the method comprising: when a camera sensor including a plurality of color arrays of pixels is activated, Detecting horizontal phase differences from the images sensed at adjacent horizontal positions among the images sensed through the plurality of pixels, and detecting the sensed images at the adjacent vertical positions, And setting a focus value of the camera sensor based on the horizontal direction phase differences and the vertical direction phase differences detected from each of the plurality of color arrays .

Effects of the mobile terminal and the control method according to the present invention will be described as follows.

According to at least one of the embodiments of the present invention, the phase difference in the horizontal direction as well as the phase difference in the vertical direction are further calculated from the images sensed through the plurality of pixels forming the color array, So that the auto focus can be performed.

In addition, according to at least one of the embodiments of the present invention, each of the pixels forming the color array is divided in the horizontal direction as well as in the vertical direction to form four sub-pixels, There is an effect that the sensitivity of sensing an image or sensing an image is further improved so that a clear image can be picked up even in low light.

1A is a block diagram illustrating a mobile terminal according to the present invention.
1B and 1C are conceptual diagrams illustrating an example of a mobile terminal according to the present invention in different directions.
2 is a flowchart illustrating a process of automatically adjusting a focus in a mobile terminal according to an exemplary embodiment of the present invention.
3 is an exemplary view showing an example of a plurality of pixels forming a color array in a mobile terminal according to an embodiment of the present invention.
4 is a conceptual diagram for explaining an example of detecting a phase difference in a horizontal direction and a phase difference in a vertical direction from images sensed in each pixel in a mobile terminal according to an embodiment of the present invention.
5 is a conceptual diagram for explaining an example of detecting a phase difference in a horizontal direction and a phase in a vertical direction through sub-pixels formed differently according to rows or columns of pixels in a mobile terminal according to an embodiment of the present invention.
6 is a flowchart illustrating an operation of detecting a phase difference and automatically adjusting a focus through sub-pixels formed differently according to rows or columns of pixels in a mobile terminal according to an exemplary embodiment of the present invention.
7 is a conceptual diagram for explaining an example of detecting a phase difference in a horizontal direction and a vertical direction through subpixels formed by dividing a pixel in the vertical and horizontal directions in a mobile terminal according to an embodiment of the present invention.
8 is a flowchart illustrating an operation of detecting a phase difference and automatically adjusting a focus through subpixels formed by dividing a pixel in the vertical and horizontal directions in a mobile terminal according to an embodiment of the present invention.
9 is a conceptual diagram for explaining an example in which, in a typical mobile terminal, phase differences in the horizontal direction are detected through subpixels formed by vertically dividing a pixel.

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.). 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 And an external terminal, or a server on a mobile communication network established according to a long term evolution (AR), a long term evolution (AR), or the like.

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 or rear or side of the mobile terminal 100, a dome switch, a jog wheel, Switches, etc.) and touch-based 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 related to 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.

In this specification, a camera disposed on the front surface of the main body 100 is referred to as a front camera 121a, and a camera disposed on the rear surface of the main body 100 is referred to as a rear camera 121b. In the case of an embodiment applicable to both the front camera 121a and the rear camera 121b, the camera 121 is referred to.

Meanwhile, the present invention may be applied to a camera 121 for receiving an external image and processing it as an image frame, a controller 180 for setting a focus value of an image frame received from the camera 121, And a display unit 151 (or a touch screen unit) for visually displaying the image. Here, the camera 121 or the camera 121 sensor may include a plurality of color arrays, and the color arrays may each include a plurality of pixels. Each of the plurality of color arrays may include at least one photodiode, and each of the pixels constituting each color array may be formed so as to independently sense an image. On the other hand, a deep trench isolation (DTI) may be formed between the pixels so as to minimize the influence of the light captured by one of the pixels on the light captured by the other pixels. In addition, each of the pixels may be divided into a plurality of subpixels, and when a plurality of subpixels constitute one pixel, each subpixel may be configured to independently sense an image. Also, a DTI can be formed between each subpixel for a similar reason as described above.

The camera 121 may be activated by a control command received from a user. Here, activation of the camera 121 may refer to a state in which an image is received from an image sensor provided in the camera 121. [

At this time, activation of the camera 121 may be performed by executing a camera application related to shooting an image using the camera. The camera application may be pre-installed at the factory of the mobile terminal, or may be installed in the mobile terminal by being selectively downloaded from an external server (e.g., application market, etc.) by the user.

When the image frame is received from the camera 121, the controller 180 can set the focus value of the image frame. Here, the focus may mean the point (or area) that appears most clearly in the image when the image is captured using the camera 121. [

The focus value may be set automatically by the control unit 180 or may be manually set by the user. Whether or not to set the focus value automatically or manually may be made by the user's choice.

When the focus value is set to be automatically set, the controller 180 may calculate a focus value of an image received from the camera 121 using a preset method. Here, the predetermined method is a method of detecting a focus value using a phase difference of a commonly used image (e.g., a phase detection AF method, a PDAF), a method of detecting a focus value using a contrast value of an image (For example, Contrast AF, CAF).

In the PDAF method, as described above, the phase difference is used to detect the phase difference by comparing images sensed in adjacent pixels among the images sensed at each pixel, and the focus value is calculated based on the detected phase difference It is a way to set. According to the PDAF method, when the detected phase difference is close to zero, the images to be compared can be images corresponding to the focus, and images with a larger phase difference can be out of focus. Accordingly, the area of the pixels corresponding to the images corresponding to the focus can be displayed as the focus area, and the focus value can be set according to the images corresponding to the focus. In the auto focus setting using the phase difference detection method, that is, the PDAF (Phase Detection Auto Focusing) method, the focus value is set based on the phase difference detected from the images sensed in each pixel. Therefore, based on the phase difference detected from the detected images So that the speed or accuracy with which the autofocus is performed can be determined.

Hereinafter, a method for automatically setting a focus value according to a method of automatically detecting a focus value using a phase difference (PDAF) according to an embodiment of the present invention will be described in more detail.

2 is a flowchart illustrating a process of automatically adjusting a focus in a mobile terminal according to an exemplary embodiment of the present invention. And FIG. 3 is an exemplary view showing an example of a plurality of pixels forming a color array in a mobile terminal according to an embodiment of the present invention. 4 is a conceptual diagram for explaining an example of detecting the phase difference in the horizontal direction and the vertical direction from the images sensed in each pixel forming the color array according to the embodiment of the present invention.

2, the controller 180 of the mobile terminal according to the embodiment of the present invention can sense images through a plurality of pixels constituting each color array when the camera 121 is activated (S200).

For example, as shown in FIG. 3 (a), the camera 121 may include a plurality of color arrays 310. In this case, the color array 310 may include four pixels forming two rows and two columns as shown in FIG. 3 (b), and the pixels may be red, green, , And blue (Blue). And each pixel can be formed so that the image can be independently sensed as described above. Therefore, when the camera is activated in step S200 of FIG. 2, the pixels 312, 314, 316 and 318 constituting the color array 310 of FIG. 3 can respectively sense images.

Meanwhile, when images are sensed from the pixels 312, 314, 316, and 318 in step S200 of FIG. 2, the controller 180 may detect the phase difference based on the sensed images.

Here, the controller 180 can detect not only the phase difference in the vertical direction but also the phase difference in the horizontal direction (S202). For example, the phase difference in the vertical direction can be detected by comparing images sensed at a vertical position adjacent to each other, and the phase difference in the horizontal direction can be detected by comparing images sensed at adjacent horizontal positions.

For example, when four pixels 312, 314, 316, and 318 form one color array 310 as shown in FIG. 3 (b), the pixels may be arranged in a horizontal direction It is possible to sense images in directions different from each other.

That is, the images sensed by the first pixel 312 and the second pixel 314 positioned adjacent to each other in the horizontal direction may be images obtained by sensing the object at different horizontal positions. Accordingly, when the image sensed by the first pixel 312 and the image sensed by the second pixel 314 are compared with each other, a phase difference in the horizontal direction can be detected. On the other hand, the images sensed by the first pixel 312 and the third pixel 316 positioned adjacent to each other in the vertical direction may be images obtained by sensing the object at different vertical positions. Accordingly, when the image sensed by the first pixel 312 and the image sensed by the third pixel 316 are compared with each other, a phase difference in the vertical direction can be detected.

Therefore, the controller 180 can compare the images sensed from the pixels adjacent to each other in the vertical direction among the images sensed from the pixels 312, 314, 316, and 318, respectively. 4 (a) and 4 (b), the images sensed in the pixels adjacent to each other in the vertical direction (312 and 316 in FIG. 4) are compared to obtain a phase difference in the vertical direction Can be detected. When comparing the images sensed at other pixels adjacent to each other in the vertical direction (FIG. 4 (b): 314, 318), it is possible to detect another phase difference in the vertical direction.

Similarly, as shown in FIGS. 4C and 4D, the images sensed in the pixels adjacent to each other in the horizontal direction (312, 314 in FIG. 4) are compared to determine the phase difference in the horizontal direction One can be detected. When comparing the images sensed by the other pixels (316, 318 in FIG. 4) adjacent to each other in the horizontal direction, it is possible to detect another phase difference in the horizontal direction.

3 (a) and 3 (b), when one color array is composed of four pixels, the phase difference in two vertical directions and the phase difference in two horizontal directions can be detected.

Meanwhile, step S202 of FIG. 2 may be performed for each color array formed in the camera 121 sensor. Therefore, the phase differences in the vertical direction and the phase differences in the horizontal direction can be detected for each color array. The control unit 180 may set a focus value according to the PDAF method based on the detected phase differences in the vertical direction and the horizontal direction (S204).

In the above description, the phase difference in the horizontal direction and the phase difference in the vertical direction are detected without using subpixels for each pixel constituting the color array. However, when the pixel is formed of a plurality of subpixels, It goes without saying that the invention can be applied.

In the following description, an example of detecting the phase difference in the horizontal direction and the phase difference in the vertical direction when one pixel is formed of a plurality of subpixels will be described in detail. In the following description, the subpixels are formed in either the vertical direction or the horizontal direction in order to detect either the horizontal phase difference or the vertical phase difference from each pixel, The case where subpixels are formed so as to detect both the phase difference in the direction or the phase difference in the vertical direction will be described as examples.

First, FIG. 5 shows an example in which subpixels are formed so that each of the pixels can detect either a phase difference in the horizontal direction or a phase difference in the vertical direction.

For example, when subpixels are formed to calculate the phase difference in the horizontal direction, the subpixels may be formed so as to be horizontally adjacent to each other within one pixel. That is, as shown in the first pixel 312 in FIG. 5A, two subpixels 522 and 524 are bisected in the longitudinal direction due to the DTI 500 formed in the vertical direction within one pixel. The subpixels 522 and 524 can sense the subject at different horizontal positions and the phase differences of the images sensed by the subpixels 522 and 524 are compared with each other, The phase difference in the horizontal direction with respect to the pixel 312 can be detected. For convenience of explanation, the subpixels formed to detect the phase difference in the horizontal direction due to the DTI formed in the vertical direction will be referred to as vertical direction subpixels.

On the other hand, when subpixels are formed to calculate the phase difference in the vertical direction, the subpixels may be formed so as to be vertically adjacent to each other within one pixel. The two subpixels 552 and 554 are bisected in the horizontal direction due to the DTI 500 formed in the horizontal direction within one pixel, as shown in the third pixel 316 in FIG. 5 (b) The subpixels 552 and 554 can sense the subject at different vertical positions and the phase differences of the images sensed by the subpixels 552 and 554 are compared with each other, The phase difference in the vertical direction with respect to the pixel 316 can be detected. For the sake of convenience of description, the subpixels formed so as to detect the phase difference in the vertical direction due to the DTI formed in the horizontal direction will be referred to as the horizontal direction subpixels.

When one pixel is composed of a plurality of subpixels and only one of the vertical phase difference and the horizontal phase difference is detected in one pixel, the camera 121 of the mobile terminal according to the embodiment of the present invention So that the color array can include all of the pixels constituted by the horizontal sub-pixels and the pixels constituted by the vertical sub-pixels so that both the phase difference in the vertical direction and the phase difference in the horizontal direction in one color array can be detected .

More preferably, the half of the pixels forming the color array is made up of the pixels made up of the horizontal sub-pixels, and the other half is made up of the pixels made up of the vertical sub-pixels. In this case, depending on the position of the pixel 312, 314, 316, or 318, it can be determined whether the corresponding pixel is made up of the horizontal directional subpixels or the vertical directional subpixels. Pixel may be formed to be different from the subpixels formed in the adjacent pixels in the other row or different from the subpixels formed in the pixels in the other column adjacent to the subpixel.

That is, as shown in FIG. 5 (a), the pixels 312, 314 in the first row are each made up of vertical sub-pixels, and each of the pixels is formed so as to be able to detect the phase difference in the horizontal direction If so, the pixels 316. 318 in the second row may each be formed of transverse sub-pixels, such that each pixel can detect a phase difference in the vertical direction, respectively.

Alternatively, the first pixel 312 and the fourth pixel 318 may be formed of vertical sub-pixels to detect the phase differences in the horizontal direction, and the second pixel 314 and the third pixel 316 may be formed of Pixels may be formed so as to detect the phase differences in the vertical direction.

FIG. 6 is a flowchart illustrating an operation of detecting a phase difference and automatically adjusting a focus through sub-pixels formed differently according to rows or columns of pixels as shown in FIG.

As shown in FIG. 5A, when each of the pixels 312, 314, 316 and 318 constituting the color array 310 is formed of subpixels, the controller 180 controls the camera 121 Is activated, the images can be sensed through the subpixels (S600).

When the images are sensed through the subpixels, the sensed images are compared with each other to detect the phase difference in the horizontal direction and the vertical direction (S602).

As shown in FIG. 5B, the images sensed in the longitudinal direction sub-pixels 522 and 524 of the first pixel 312 may be images obtained by sensing the object at different adjacent horizontal positions . Accordingly, the controller 180 can detect the phase difference in the horizontal direction by comparing the sensed images in the longitudinal direction sub-pixels 522 and 524 of the first pixel 312, respectively.

That is, the controller 180 can detect the phase difference in the horizontal direction from the first pixel 312 having the vertical direction sub-pixels 522 and 524. Similarly, the controller 180 may further detect the phase difference in the horizontal direction from the second pixel 314 having the vertical sub-pixels 532 and 534.

5C, the images sensed in the transverse subpixels 552 and 554 of the third pixel 316 may be images obtained by sensing the subject at different adjacent vertical positions . Accordingly, the controller 180 can detect the phase difference in the vertical direction by comparing the sensed images in the horizontal sub-pixels 552 and 554 of the third pixel 316, respectively.

That is, the controller 180 can detect the phase difference in the vertical direction from the third pixel 316 having the horizontal direction sub-pixels 552 and 554. Similarly, the controller 180 may further detect the phase difference in the vertical direction from the fourth pixel 318 having the horizontal sub-pixels 562 and 564.

Thus, as shown in Fig. 5 (a), when one color array is composed of four pixels, two vertical phase differences and two horizontal phase differences can be detected with respect to one color array .

Meanwhile, the step S602 of FIG. 6 may be performed for each color array formed in the camera 121 sensor. Therefore, the phase differences in the vertical direction and the phase differences in the horizontal direction can be detected for each color array. The controller 180 may set a focus value according to the PDAF method based on the detected phase differences in the vertical direction and the horizontal direction (S604).

5, the sub-pixels may be formed to detect both the phase difference in the horizontal direction or the phase difference in the vertical direction in one pixel. For example, when four subpixels are formed by bisecting each of the horizontal and vertical directions for each pixel, a phase difference in the horizontal direction and a phase difference in the vertical direction in both of the pixels may be detected.

FIG. 7 is a conceptual diagram showing an example in which subpixels are formed by dividing a pixel in both the vertical and horizontal directions, as described above.

7 (a) shows an example in which each pixel is divided into a vertical direction and a horizontal direction to form four subpixels, respectively. In this case, the first pixel 312 may be formed with four sub-pixels 712, 714, 722, and 724 due to the DTI 500 formed in the horizontal and vertical directions, and the sub-pixels 712 and 714 , 722, and 724 can sense a subject at different positions, respectively.

In this case, the controller 180 can detect the phase difference in the horizontal direction from the images sensed in the subpixels adjacent to each other in the horizontal direction. Also, the phase difference in the vertical direction can be detected from the images sensed in the subpixels adjacent to each other in the vertical direction.

7 (b), the controller 180 compares the images sensed in the vertically adjacent subpixels 712 and 722 with each other, and the subpixels 714 and 724 adjacent in the vertical direction ) To detect two phase differences in the vertical direction.

In addition, as shown in FIG. 7C, the images sensed in the horizontally adjacent subpixels 712 and 714 are compared and the images sensed in the other subpixels 722 and 724 adjacent in the horizontal direction The two phase differences in the horizontal direction can be detected.

That is, one pixel can be divided into four sub-pixels and each image can be sensed to obtain two horizontal and one vertical phase differences in one pixel. Therefore, the phase difference can be detected more finely than when one pixel is divided into four subpixels, thereby improving the sensitivity for sensing the image and the resolution of the image.

Meanwhile, FIG. 8 is a flowchart illustrating an operation of detecting a phase difference and automatically adjusting a focus through subpixels formed by dividing a pixel in the vertical and horizontal directions, as shown in FIG.

As shown in FIG. 7A, when each of the pixels 312, 314, 316, and 318 is formed of four subpixels, the controller 180 determines whether each of the pixels 312, 314, The images can be sensed through the subpixels (S800).

When the images are sensed through the respective sub-pixels, phase differences in the horizontal direction are detected based on the sensed images in the sub-pixels adjacent to each other in the sensed images, The phase differences in the vertical direction can be detected based on the images (S802). Accordingly, as shown in Figs. 7 (b) and 7 (c), the phase difference in two vertical directions and the phase difference in two horizontal directions in one pixel can be detected.

Meanwhile, the step S802 of FIG. 8 may be performed for each pixel of the color array 310. FIG. Therefore, the phase differences in the vertical direction and the phase differences in the horizontal direction can be detected for each pixel. Thus, eight vertical and horizontal retardations can be detected for one color array. The control unit 180 may repeat the above-described process for each color array formed in the sensor of the camera 121 to detect the phase differences in the vertical direction and the phase differences in the horizontal direction.

The controller 180 may set a focus value according to the PDAF method based on the detected phase differences in the vertical direction and the horizontal direction (S804).

Meanwhile, the mobile terminal according to the embodiment of the present invention can detect the phase difference in the horizontal direction based on the images sensed from the pixels or subpixels adjacent to each other in the horizontal direction. In addition, the present invention can detect the phase difference in the vertical direction based on images sensed from pixels or subpixels adjacent in the vertical direction. Accordingly, the mobile terminal according to the embodiment of the present invention can more accurately detect the phase difference occurring in the vertical direction, and can adjust the focus value by reflecting the phase difference in the vertical direction.

On the other hand, when one pixel is divided into only one direction to detect the phase difference, there is a problem that only the phase difference in a specific direction can be detected. 9 is a conceptual diagram for explaining an example in which phase differences are detected through subpixels in a typical mobile terminal capable of detecting only a phase difference in a specific direction. For convenience of explanation, it is assumed that the conventional mobile terminal detects phase differences in the horizontal direction through subpixels formed by dividing each pixel in the longitudinal direction.

9 (a), which shows an example of a camera 900 sensor having a plurality of color arrays 910, a typical mobile terminal is also similar to the mobile terminal according to the embodiment of the present invention It can be seen that the Cameray sensor has a plurality of color arrays 910 consisting of respective pixels.

However, the conventional mobile terminal has a structure in which each pixel is divided in the longitudinal direction (DTI 920) to form each subpixel as shown in FIG. 9B. Therefore, as shown in FIG. 9 (b), in the conventional mobile terminal, subpixels adjacent to each other in the horizontal direction may be formed to constitute one pixel.

On the other hand, as shown in FIG. 9 (b), when the pixels are composed of only the subpixels adjacent in the horizontal direction, the phase difference detected by each pixel is different from the images sensed at different horizontal positions ). ≪ / RTI > Therefore, when the phase difference is calculated as shown in FIG. 9 (c), only the horizontal phase difference can be detected in each pixel. That is, there is a problem that a phase difference in the vertical direction can not be obtained as a sub-pixel structure of a typical mobile terminal.

On the other hand, in the mobile terminal according to the embodiment of the present invention, as described above, it is possible to detect both the phase difference in the horizontal direction and the phase difference in the vertical direction. Therefore, the camera of the mobile terminal according to the embodiment of the present invention can automatically adjust and set the focus value based on not only the phase difference in the horizontal direction but also the phase difference in the vertical direction, so that the focus value can be set more accurately and quickly. In addition, since the sensitivity with which the image is sensed can be further improved, a clearer image can be sensed even at a low light level with a small amount of light.

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. The foregoing detailed description, therefore, 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.

Claims (10)

A camera sensor including a plurality of color arrays each comprising a plurality of pixels each sensing at least one image independently;
Detecting horizontal phase differences from images sensed at adjacent different horizontal positions among images sensed by the plurality of pixels forming the color array and detecting vertical phase differences from sensed images at adjacent adjacent vertical positions In addition,
And sets the focus value of the camera sensor based on the horizontal direction phase differences and the vertical direction phase differences detected from each of the plurality of color arrays. The method according to claim 1,
The pixels each sense one image,
Wherein,
In one color array, images sensed in pixels adjacent to each other in the horizontal direction are compared with each other to detect the above-mentioned horizontal direction phase differences, and the images sensed in the pixels adjacent to each other in the vertical direction are compared with each other, Of the mobile terminal. 3. The method of claim 2,
The color array is composed of four pixels forming two rows and two columns,
Wherein,
The color array is characterized by comparing the sensed images in the pixels in the same column with each other to calculate the vertical phase differences and comparing the sensed images in the pixels in the same row to calculate the horizontal phase differences . The method according to claim 1,
Wherein each of the plurality of pixels comprises:
At least two sub-pixels,
The sub-
And wherein the mobile terminal is configured to sense images independently of each other. 5. The method of claim 4,
Wherein the plurality of pixels comprises:
Pixels formed of first sub-pixels for detecting the phase difference in the horizontal direction and pixels formed of second sub-pixels for detecting the phase difference in the vertical direction,
The first sub-
Pixels are formed by bisecting the pixels vertically so that each sub-pixel is adjacent to each other in the horizontal direction within the pixel,
The second sub-
Wherein the pixel is formed by bisecting the pixel in the horizontal direction such that each sub-pixel in the pixel is adjacent to each other in the vertical direction. 6. The method of claim 5,
The color array includes:
Wherein the shape of the subpixels forming each pixel is different for each row, or the shape of the subpixels forming each pixel is different for each column. 6. The method of claim 5,
Wherein half of the pixels constituting the color array are pixels including the first sub-pixels, and the remaining half of the pixels are pixels included in the second sub-pixels. 5. The method of claim 4,
Wherein the plurality of pixels comprises:
Pixels are divided into four sub pixels in the horizontal direction and the vertical direction, respectively,
Wherein,
Pixels detected in the horizontal direction by comparing the images sensed from the subpixels adjacent in the horizontal direction with respect to each pixel constituting the color array to compare the images sensed in the subpixels adjacent in the vertical direction with each other, Detecting phase differences,
And sets the focus value of the camera sensor based on the horizontal direction phase differences and the vertical direction phase differences detected for each pixel. 5. The method of claim 4,
Wherein Deep Trench Isolation (DTI) is formed between each of the plurality of pixels and between each of the at least two subpixels. Sensing images through the plurality of pixels when a camera sensor including a plurality of color arrays of pixels is activated;
Detecting horizontal phase differences from images sensed at adjacent different horizontal positions among the images sensed through the plurality of pixels and detecting vertical phase differences from sensed images at adjacent adjacent vertical positions; And
And setting a focus value of the camera sensor based on the horizontal direction phase differences and the vertical direction phase differences detected from each of the plurality of color arrays.

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