WO2018151349A1 - Mobile terminal - Google Patents

Abstract

The present invention provides a mobile terminal comprising: a terminal main body; a camera module which is mounted on one surface of the terminal main body and captures an image and/or collects iris information; and a control unit which forms a captured image or iris information on the basis of an image capturing mode and an iris recognition mode, wherein the camera module comprises: a lens unit which forms a predetermined viewing angle and has a plurality of lenses; a housing which accommodates the lens unit and adjusts a focal distance; a filter unit which is disposed between the plurality of lenses and is divided into a first filter region which blocks infrared rays and a second filter region which allows infrared rays to pass therethrough; and an image sensor which forms the captured image using light passing through the first filter region and forms the iris information using light passed through the second filter region.

Description

Mobile terminal

The present invention relates to a mobile terminal including a camera module capable of recognizing iris information.

Terminals may be divided into mobile / portable terminals and stationary terminals according to their mobility. The mobile terminal may be further classified into a handheld terminal and a vehicle mounted terminal according to whether a user can directly carry it.

Such terminals have various functions according to the development of technology. For example, it is implemented in the form of a multimedia player having complex functions such as taking a picture or a video, playing a music or a video file, playing a game, or receiving a broadcast. Further, in order to support and increase the function of the terminal, it may be considered to improve the structural part and / or the software part of the terminal.

Recently, various functions using biometric information have been developed on mobile terminals. In particular, a technology for detecting an iris image of a user using a camera has been studied. However, in order to obtain iris information by using an image capturing camera, a filter for selectively passing infrared rays or visible rays must be replaced, and thus it is difficult to implement a stable camera module by adding a moving structure.

An object of the present invention is to provide a mobile terminal that performs image capturing and iris information recognition with a simplified camera module without an additional filter replacement structure.

According to an aspect of the present invention to achieve the above or another object, a mobile terminal according to an embodiment of the present invention, is mounted on the terminal body, one surface of the terminal body, and collects image and / or iris information A camera module and a controller configured to form a captured image or iris information based on a zero mode and an iris recognition mode, wherein the camera module has a preset viewing angle and includes a lens unit having a plurality of lenses, and accommodates the lens unit and a focal length. A housing disposed between the plurality of lenses, the filter unit partitioned into a first filter region blocking infrared rays, and a second filter region passing infrared rays and the light passing through the first filter region. An image sensor which forms a photographed image and forms iris information using light passing through the second filter region. The.

In example embodiments, the lens unit may be divided into a receiving area where the light reaches and a non-receiving area which is the remaining area, and the receiving area overlaps the second filter area and a partial area of the first filter area. Accordingly, some of the light incident on the reception area may form a photographed image, and others may form iris information.

According to the present invention, since the iris information and the photographed image can be formed by a camera module including one lens unit and one image sensor, it is advantageous in terms of cost and space utilization.

In addition, since the infrared ray and the visible light can be selectively utilized by the filter part partitioned into the filter area, an additional structure or control algorithm for replacing the filter is unnecessary.

1A to 1C, FIG. 1A is a block diagram illustrating a mobile terminal according to the present invention, and FIGS. 1B and 1C are conceptual views of one example of the mobile terminal, viewed from different directions.

2 is a conceptual diagram illustrating a structure of a camera module according to an embodiment of the present invention.

3A is a conceptual diagram illustrating a path of light passing through the lens unit, and FIG. 3B is a conceptual diagram illustrating the filter unit.

4A and 4B are conceptual views for explaining a method of manufacturing a filter unit.

5 is a conceptual diagram illustrating a camera module according to another embodiment.

6 is a conceptual view illustrating a control method of a camera module according to the present invention.

Hereinafter, exemplary embodiments disclosed herein will be described in detail with reference to the accompanying drawings, and the same or similar components will be given the same reference numerals regardless of the reference numerals, and redundant description thereof will be omitted. The suffixes "module" and "unit" for components used in the following description are given or used in consideration of ease of specification, and do not have distinct meanings or roles from each other. In addition, in describing the embodiments disclosed herein, when it is determined that the detailed description of the related known technology may obscure the gist of the embodiments disclosed herein, the detailed description thereof will be omitted. In addition, the accompanying drawings are intended to facilitate understanding of the embodiments disclosed herein, but are not limited to the technical spirit disclosed herein by the accompanying drawings, all changes included in the spirit and scope of the present invention. It should be understood to include equivalents and substitutes.

The mobile terminal described herein includes a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistant, a portable multimedia player, a navigation, a slate PC , Tablet PCs, ultrabooks, wearable devices, such as smartwatches, glass glasses, head mounted displays, and the like. have.

The mobile terminal described herein includes a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistant, a portable multimedia player, a navigation, a slate PC , Tablet PCs, ultrabooks, wearable devices, such as smartwatches, glass glasses, head mounted displays, and the like. have.

However, it will be readily apparent to those skilled in the art that the configuration according to the embodiments described herein may also be applied to fixed terminals such as digital TVs, desktop computers, digital signages, etc., except when applicable only to mobile terminals. will be.

1A to 1C, FIG. 1A is a block diagram illustrating a mobile terminal according to the present invention, and FIGS. 1B and 1C are conceptual views of one example of the mobile terminal, viewed from 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 controller 180, and a power supply unit 190. ) May be included. The components shown in FIG. 1A are not essential to implementing a mobile terminal, so that the mobile terminal described herein may have more or fewer components than those listed above.

More specifically, the wireless communication unit 110 of the components, between the mobile terminal 100 and the wireless communication system, between the mobile terminal 100 and another mobile terminal 100, or the mobile terminal 100 and the external server It may include one or more modules that enable wireless communication therebetween. 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 the broadcast receiving module 111, the mobile communication module 112, the wireless internet module 113, the short range communication module 114, and the location information module 115. .

The input unit 120 may include a camera 121 or an image input unit for inputting an image signal, a microphone 122 for inputting an audio signal, an audio input unit, or a user input unit 123 for receiving information from a user. , Touch keys, mechanical keys, and the like. The voice data or the image data collected by the input unit 120 may be analyzed and processed as a control command of the user.

The sensing unit 140 may include one or more sensors 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, an illumination sensor, a touch sensor, an acceleration sensor, a magnetic sensor, and gravity. G-sensor, Gyroscope Sensor, Motion Sensor, RGB Sensor, Infrared Sensor, Infrared Sensor, Finger Scan Sensor, Ultrasonic Sensor Optical sensors (e.g. cameras 121), microphones (see 122), battery gauges, environmental sensors (e.g. barometers, hygrometers, thermometers, radiation detection sensors, Thermal sensors, gas sensors, etc.), chemical sensors (eg, electronic noses, healthcare sensors, biometric sensors, etc.). Meanwhile, the mobile terminal disclosed herein may use a combination of information sensed by at least two or more of these sensors.

The output unit 150 is used to generate an output related to sight, hearing, or tactile sense, and includes at least one of a display unit 151, an audio output unit 152, a hap tip module 153, and an optical output unit 154. can do. The display unit 151 forms a layer structure with or is integrally formed with the touch sensor, thereby implementing 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 the user, and may also provide an output interface between the mobile terminal 100 and the 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 connects a device equipped with a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, and an identification module. It may include at least one of a port, an audio input / output (I / O) port, a video input / output (I / O) port, and an earphone port. In the mobile terminal 100, in response to an external device being connected to the interface unit 160, appropriate control associated with the connected external device may be performed.

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 driven in the mobile terminal 100, data for operating the mobile terminal 100, and instructions. At least some of these applications may be downloaded from an external server via wireless communication. In addition, at least some of these application programs may exist on the mobile terminal 100 from the time of shipment for basic functions of the mobile terminal 100 (for example, a call forwarding, a calling function, a message receiving, and a calling function). The application program may be stored in the memory 170 and installed on the mobile terminal 100 to be driven by the controller 180 to perform an operation (or function) of the mobile terminal.

In addition to the operation related to the application program, the controller 180 typically controls the overall operation of the mobile terminal 100. The controller 180 may provide or process information or a function appropriate to a user by processing signals, data, information, and the like, which are input or output through the above-described components, or by driving an application program stored in the memory 170.

In addition, the controller 180 may control at least some of the components described with reference to FIG. 1A in order to drive an application program stored in the memory 170. Furthermore, the controller 180 may operate by combining at least two or more of the components included in the mobile terminal 100 to drive the application program.

The power supply unit 190 receives power from an external power source and an internal power source under the control of the controller 180 to supply power to each component included in the mobile terminal 100. The power supply unit 190 includes a battery, which may be a built-in battery or a replaceable battery.

At least some of the components may operate in cooperation with each other to implement an operation, control, or control method of the 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 components listed above will be described in detail with reference to FIG. 1A before looking at various embodiments implemented through the mobile terminal 100 described above.

First, referring to the wireless communication unit 110, the broadcast receiving module 111 of the wireless communication unit 110 receives a broadcast signal 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 switching of broadcast channels for at least two broadcast channels.

The mobile communication module 112 may include technical standards or communication schemes (eg, Global System for Mobile communication (GSM), Code Division Multi Access (CDMA), Code Division Multi Access 2000 (CDMA2000), and EV). Enhanced Voice-Data Optimized or Enhanced Voice-Data Only (DO), Wideband CDMA (WCDMA), High Speed Downlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA), Long Term Evolution (LTE), LTE-A (Long Term Evolution-Advanced) and the like to transmit and receive a radio signal with at least one of a base station, an external terminal, a server on a mobile communication network.

The wireless signal may include various types of data according to transmission and reception of a voice call signal, a video call call signal, or a text / multimedia message.

The wireless internet module 113 refers to a module for wireless internet access and may be embedded or external to the mobile terminal 100. The wireless internet module 113 is configured to transmit and receive wireless signals in a communication network according to wireless internet technologies.

Examples of wireless Internet technologies include Wireless LAN (WLAN), Wireless-Fidelity (Wi-Fi), Wireless Fidelity (Wi-Fi) Direct, Digital Living Network Alliance (DLNA), Wireless Broadband (WiBro), and WiMAX (World). Interoperability for Microwave Access (HSDPA), High Speed Downlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA), Long Term Evolution (LTE), Long Term Evolution-Advanced (LTE-A), and the like. 113) transmits and receives data according to at least one wireless Internet technology in a range including the Internet technologies not listed above.

In view of the fact that the wireless Internet access by WiBro, HSDPA, HSUPA, GSM, CDMA, WCDMA, LTE, LTE-A, etc. is made through a mobile communication network, the wireless Internet module 113 for performing a wireless Internet access through the mobile communication network 113 ) May be understood as a kind of 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), ZigBee, and NFC. (Near Field Communication), at least one of Wi-Fi (Wireless-Fidelity), Wi-Fi Direct, Wireless USB (Wireless Universal Serial Bus) technology can be used to support short-range communication. The short-range communication module 114 may be configured between a mobile terminal 100 and a wireless communication system, between the mobile terminal 100 and another mobile terminal 100, or through the wireless area networks. ) And a network in which the other mobile terminal 100 (or an external server) is located. The short range wireless communication network may be short range wireless personal area networks.

Here, the other mobile terminal 100 is a wearable device capable of exchanging (or interworking) data with the mobile terminal 100 according to the present invention (for example, smartwatch, smart glasses). (smart glass), head mounted display (HMD). The short range communication module 114 may sense (or recognize) a wearable device that can communicate with the mobile terminal 100, around the mobile terminal 100. Further, when the detected wearable device is a device that is authenticated to communicate with the mobile terminal 100 according to the present invention, the controller 180 may include at least a portion of data processed by the mobile terminal 100 in the short range communication module ( The transmission may be transmitted to the wearable device through 114. Therefore, the user of the wearable device may use data processed by the mobile terminal 100 through the wearable device. For example, according to this, when a call is received by the mobile terminal 100, the user performs a phone call through the wearable device or when a message is received by the mobile terminal 100, the received through the wearable device. It is possible to check the message.

The location information module 115 is a module for obtaining a location (or current location) of a 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, the mobile terminal may acquire the location of the mobile terminal using a signal transmitted from a GPS satellite. As another example, when the mobile terminal utilizes the Wi-Fi module, the mobile terminal may acquire the location of the mobile terminal based on information of the wireless access point (AP) transmitting or receiving the Wi-Fi module and the wireless signal. If necessary, the location information module 115 may perform any function of other modules of the wireless communication unit 110 to substitute or additionally obtain data regarding the location of the mobile terminal. 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 input of image information, the mobile terminal 100 is one. Alternatively, the 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 call mode or the photographing mode. The processed image frame may be displayed on the display unit 151 or stored in the memory 170. On the other hand, the plurality of cameras 121 provided in the mobile terminal 100 may be arranged to form a matrix structure, and through the camera 121 forming a matrix structure in this way, the mobile terminal 100 may have various angles or focuses. The plurality of pieces of image information may 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 implementing a stereoscopic image.

The microphone 122 processes external sound signals into electrical voice data. The processed voice data may be variously used according to a function (or an application program being executed) performed by the mobile terminal 100. Meanwhile, various noise reduction algorithms may be implemented in the microphone 122 to remove noise generated in the process of receiving an external sound signal.

The user input unit 123 is for receiving information from a user. When information is input through the user input unit 123, the controller 180 may control an operation of the mobile terminal 100 to correspond to the input information. . The user input unit 123 may be a mechanical input unit (or a mechanical key, for example, a button, a dome switch, a jog wheel, or the like located on the front, rear, or side surfaces of the mobile terminal 100). Jog switch, etc.) and touch input means. As an example, the touch input means may include a virtual key, a soft key, or a visual key displayed on the touch screen through a software process, or a portion other than the touch screen. It may be made of a touch key disposed in the. The virtual key or the visual key may be displayed on the touch screen while having various forms, for example, graphic, text, icon, video, or the like. It can be made of a combination of.

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 sensing signal corresponding thereto. The controller 180 may control driving or operation of the mobile terminal 100 or perform data processing, function or operation related to an 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 or absence of an object approaching a predetermined detection surface or an object present in the vicinity without using a mechanical contact by using an electromagnetic force or infrared rays. The proximity sensor 141 may be disposed in an inner region of the mobile terminal covered by the touch screen described above or near the touch screen.

Examples of the proximity sensor 141 include a transmission photoelectric sensor, a direct reflection photoelectric sensor, a mirror reflection photoelectric sensor, a high frequency oscillation proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor. In the case where the touch screen is capacitive, the proximity sensor 141 may be configured to detect the proximity of the object by the change of the electric field according to the proximity of the conductive object. 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, an action of allowing the object to be recognized without being in contact with the touch screen so that the object is located on the touch screen is referred to as a "proximity touch", and the touch The act of actually touching an object on a screen is called a "contact touch." The position at which the object is in close proximity touch on the touch screen means a position where the object is perpendicular to the touch screen when the object is in close proximity touch. The proximity sensor 141 may detect a proximity touch and a proximity touch pattern (for example, a proximity touch distance, a proximity touch direction, a proximity touch speed, a proximity touch time, a proximity touch position, and a proximity touch movement state). have. Meanwhile, the controller 180 processes data (or information) corresponding to the proximity touch operation and the proximity touch pattern detected 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. Further, the controller 180 may control the mobile terminal 100 to process different operations or data (or information) according to whether the touch on the same point on the touch screen is a proximity touch or a touch touch. .

The touch sensor senses a touch (or touch input) applied to the touch screen (or the display unit 151) using at least one of various touch methods such as a resistive film method, a capacitive method, an infrared method, an ultrasonic method, and a magnetic field method. do.

As an example, the touch sensor may be configured to convert a change in pressure applied to a specific portion of the touch screen or capacitance generated at the specific portion into an electrical input signal. The touch sensor may be configured to detect a position, an area, a pressure at the touch, a capacitance at the touch, and the like, when the touch object applying the touch on the touch screen is touched on the touch sensor. Here, the touch object is an object applying a touch to the touch sensor and may be, for example, a finger, a touch pen or a stylus pen, a pointer, or the like.

As such, 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 then transmits the corresponding data to the controller 180. As a result, the controller 180 can know which area of the display unit 151 is touched. Here, the touch controller may be a separate component from the controller 180 or may be the controller 180 itself.

Meanwhile, the controller 180 may perform different control or perform the same control according to the type of touch object that touches the touch screen (or a touch key provided in addition to the touch screen). Whether to perform different control or the same control according to the type of touch object may be determined according to the operation state of the mobile terminal 100 or an application program being executed.

Meanwhile, the touch sensor and the proximity sensor described above may be independently or combined, and may be a short (or tap) touch, a long touch, a multi touch, a drag touch on a touch screen. ), Flick touch, pinch-in touch, pinch-out touch, swipe touch, hovering touch, etc. A touch can be sensed.

The ultrasonic sensor may recognize location information of a sensing object using ultrasonic waves. On the other hand, the controller 180 can calculate the position of the wave generation source through the information detected from the optical sensor and the plurality of ultrasonic sensors. The position of the wave source can be calculated using the property that the light is much faster than the ultrasonic wave, that is, the time that the light reaches the optical sensor is much faster than the time when the ultrasonic wave reaches the ultrasonic sensor. More specifically, the position of the wave generation source may be calculated using a time difference from the time when the ultrasonic wave reaches the light as the reference signal.

On the other hand, the camera 121, which has been described as the configuration of the input unit 120, includes at least one of a camera sensor (eg, CCD, 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 detect a touch of a sensing object with respect to a 3D stereoscopic image. The photo sensor may be stacked on the display element, which is configured to scan the movement of the sensing object in proximity to the touch screen. More specifically, the photo sensor mounts a photo diode and a transistor (TR) in a row / column and scans contents mounted on the photo sensor by using an electrical signal that varies according to the amount of light applied to the photo diode. That is, the photo sensor calculates coordinates of the sensing object according to the amount of light change, and thus, the position information of the sensing object can be obtained.

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 in the mobile terminal 100 or user interface (UI) and graphical user interface (GUI) 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.

The stereoscopic display unit may be a three-dimensional display method such as a stereoscopic method (glasses method), an auto stereoscopic method (glasses-free method), a projection method (holographic method).

1B and 1C, the disclosed mobile terminal 100 includes a terminal body in the form of a bar. However, the present invention is not limited thereto, and the present invention can be applied to various structures such as a watch type, a clip type, a glass type, or a folder type, a flip type, a slide type, a swing type, a swivel type, and two or more bodies which are coupled to be movable relative to each other. . Although related to a particular type of mobile terminal, a description of a particular type of mobile terminal may generally apply to other types of mobile terminals.

Herein, the terminal body may be understood as a concept that refers to the mobile terminal 100 as at least one aggregate.

The mobile terminal 100 includes a case (eg, a frame, a housing, a cover, etc.) forming an external 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 internal space formed by the combination of the front case 101 and the rear case 102. At least one rear case may be additionally disposed between the front case 101 and the rear case 102.

The display unit 151 may be disposed in front of the terminal body to output information. As shown, the window 151a of the display unit 151 may be mounted to the front case 101 to form a front surface of the terminal body together with the front case 101.

In some cases, an electronic component may be mounted on the rear case 102. Electronic components attachable to the rear case 102 include a removable battery, an identification module, a memory card, and the like. In this case, the rear cover 102 may be detachably coupled to the rear case 102 to cover the mounted electronic component. Therefore, when the rear cover 103 is separated from the rear case 102, the electronic components 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 portion of the side surface of the rear case 102 may be exposed. In some cases, the rear case 102 may be completely covered by the rear cover 103 during the coupling. On the other hand, the rear cover 103 may be provided with an opening for exposing the camera 121b or the sound output unit 152b to the outside.

The cases 101, 102, and 103 may be formed by injecting a synthetic resin, or may be formed of a metal, for example, stainless steel (STS), aluminum (Al), titanium (Ti), or the like.

The mobile terminal 100 may be configured such that one case may provide 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, the mobile terminal 100 of the unibody that the synthetic resin or metal from the side to the rear may be implemented.

On the other hand, the mobile terminal 100 may be provided with a waterproof portion (not shown) to prevent water from seeping 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 combination thereof. It may include a waterproof member for sealing the inner space.

The mobile terminal 100 includes a display unit 151, first and second sound output units 152a and 152b, a proximity sensor 141, an illuminance sensor 142, an optical output unit 154, and first and second units. The cameras 121a and 121b, the first and second manipulation units 123a and 123b, the microphone 122, the interface unit 160, and the like may be provided.

Hereinafter, as illustrated in FIGS. 1B and 1C, the display unit 151, the first sound output unit 152a, the proximity sensor 141, the illuminance sensor 142, and the light output unit may be disposed on the front surface of the terminal body. 154, the first camera 121a and the first operation unit 123a are disposed, and the second operation unit 123b, the microphone 122, and the interface unit 160 are disposed on the side of the terminal body. The mobile terminal 100 in which the second sound output unit 152b and the second camera 121b are disposed on the rear surface of the mobile terminal 100 will be described as an example.

However, these configurations are not limited to this arrangement. These configurations may be excluded or replaced as needed or disposed on other sides. For example, the first manipulation 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 of the terminal body instead of 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 in the mobile terminal 100 or user interface (UI) and graphical user interface (GUI) information according to the execution screen information. .

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

In addition, two or more display units 151 may exist according to an implementation form of the mobile terminal 100. In this case, the plurality of display units may be spaced apart or integrally disposed on one surface of the mobile terminal 100, or may be disposed on different surfaces.

The display unit 151 may include a touch sensor that senses a touch on the display unit 151 so as to receive a control command by a touch method. By using this, when a touch is made to the display unit 151, the touch sensor may sense the touch, and the controller 180 may generate a control command corresponding to the touch based on the touch sensor. The content input by the touch method may be letters or numbers or menu items that can be indicated or designated in various modes.

Meanwhile, the touch sensor is formed of a film having a touch pattern and disposed between the window 151a and the display (not shown) on the rear surface of the window 151a or directly patterned on the rear surface of the window 151a. It can also be Alternatively, the touch sensor may be integrally formed with the display. For example, the touch sensor may be disposed on a substrate of the display or provided in the display.

As such, the display unit 151 may form a touch screen together with the touch sensor. In this case, the touch screen may function as the user input unit 123 (see FIG. 1A). In some cases, the touch screen may replace at least some functions of the first manipulation unit 123a.

The first sound output unit 152a may be implemented as a receiver for transmitting a call sound to the user's ear, and the second sound output unit 152b may be a loud speaker for outputting various alarm sounds or multimedia reproduction sounds. It can be implemented in the form of).

A sound hole for emitting sound generated from the first sound output unit 152a may be formed in the window 151a of the display unit 151. However, the present invention is not limited thereto, and the sound may be configured to be emitted along an assembly gap between the structures (for example, a gap between the window 151a and the front case 101). In this case, an externally formed hole may be invisible or hidden for sound output, thereby simplifying the appearance of the mobile terminal 100.

The light output unit 154 is configured to output light for notifying when an event occurs. Examples of the event may include message reception, call signal reception, missed call, alarm, schedule notification, email reception, information reception through an application, and the like. When the user's event confirmation is detected, the controller 180 may control the light output unit 154 to end the light output.

The first camera 121a processes an image frame of a still image or a moving image obtained by the image sensor in a shooting mode or a video call mode. The processed image frame may be displayed on the display unit 151 and stored in the memory 170.

The first and second manipulation units 123a and 123b may be collectively referred to as a manipulating portion as an example of the user input unit 123 operated to receive a command for controlling the operation of the mobile terminal 100. have. The first and second manipulation units 123a and 123b may be adopted in any manner as long as the user is tactile manner such as touch, push, scroll, and the like while the user is tactile. In addition, the first and second manipulation units 123a and 123b may be employed in such a manner that the first and second manipulation units 123a and 123b are operated without a tactile feeling by the user through proximity touch, hovering touch, or the like.

In the drawing, the first operation unit 123a is illustrated as being a touch key, but the present invention is not limited thereto. For example, the first manipulation unit 123a may be a mechanical key or a combination of a touch key and a push key.

The contents input by the first and second manipulation units 123a and 123b may be variously set. For example, the first operation unit 123a receives a command such as a menu, a home key, a cancellation, a search, etc., and the second operation unit 123b is output from the first or second sound output units 152a and 152b. The user may receive a command such as adjusting the volume of the sound and switching to the touch recognition mode of the display unit 151.

Meanwhile, as another example of the user input unit 123, a rear input unit (not shown) may be provided on the rear surface of the terminal body. The rear input unit is manipulated to receive a command for controlling the operation of the mobile terminal 100, and the input contents may be variously set. For example, commands such as power on / off, start, end, scroll, etc., control of the volume of sound output from the first and second sound output units 152a and 152b, and the touch recognition mode of the display unit 151. Commands such as switching can be received. The rear input unit may be implemented in a form capable of input by touch input, push input, or a combination thereof.

The rear input unit may be disposed to overlap 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 so that the user can easily manipulate the index body when the user grips the terminal body with one hand. However, the present invention is not necessarily limited thereto, and the position of the rear input unit may be changed.

As such, when the rear input unit is provided at the rear of the terminal body, a new type user interface using the same may be implemented. In addition, when the touch screen or the rear input unit described above replaces at least some functions of the first operation unit 123a provided in the front of the terminal body, the first operation unit 123a is not disposed on the front of the terminal body. The display unit 151 may be configured with a larger screen.

Meanwhile, the mobile terminal 100 may be provided with a fingerprint recognition sensor for recognizing a user's fingerprint, and the controller 180 may use fingerprint information detected through the fingerprint recognition sensor as an 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 a user's voice, other sounds, and the like. The microphone 122 may be provided at a plurality of locations and configured to receive stereo sound.

The interface unit 160 serves as a path for connecting the mobile terminal 100 to an external device. For example, the interface unit 160 may be connected to another device (eg, an earphone or an external speaker), a port for short-range communication (for example, an infrared port (IrDA Port), or a Bluetooth port (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 in the form of a socket for receiving an external card such as a subscriber identification module (SIM) or a user identity module (UIM), a memory card for storing information.

The second display unit 251 is disposed on the rear surface of the terminal body according to the present invention. Therefore, an additional rear camera and flash may not be disposed on the rear of the terminal body.

The second sound output unit 152b may be further disposed on the rear surface of 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 to implement a speakerphone mode during a call.

The terminal body may be provided with at least one antenna for wireless communication. The antenna may be built in the terminal body or formed in the case. For example, an antenna that forms part of the broadcast receiving module 111 (refer to FIG. 1A) may be configured to be pulled out from the terminal body. Alternatively, the antenna may be formed in a film type and attached to the inner side of the rear cover 103, or may be configured such that a case including a conductive material functions 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 embedded in the terminal body or detachably configured 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 enable wireless charging through a wireless charger. The wireless charging may be implemented by a magnetic induction method or a resonance method (magnetic resonance method).

Meanwhile, in the drawing, the rear cover 103 is coupled to the rear case 102 to cover the battery 191 to limit the detachment of the battery 191 and to protect the battery 191 from external shock and foreign matter. To illustrate. When the battery 191 is detachably configured to the terminal body, the rear cover 103 may be detachably coupled to the rear case 102.

An accessory may be added to the mobile terminal 100 to protect the appearance or to assist or expand the function of the mobile terminal 100. An example of such an accessory may be a cover or pouch that covers or accommodates at least one surface of the mobile terminal 100. The cover or pouch may be configured to be linked with the display unit 151 to expand the function of the mobile terminal 100. Another example of the accessory may be a touch pen for assisting or extending a touch input to a touch screen.

Hereinafter, embodiments related to a control method that can be implemented in the mobile terminal configured as described above will be described with reference to the accompanying drawings. It is apparent to those skilled in the art that the present invention can be embodied in other specific forms without departing from the spirit and essential features of the present invention.

The camera module 300 of the mobile terminal according to the present invention may image an external environment to capture an image and acquire iris information of a user. The camera module 300 may correspond to a front camera module disposed on the front surface of the main body of the mobile terminal 100.

The camera module 300 includes a filter unit 315 for receiving different light to capture the image or obtain iris information. The camera module 300 according to the present invention may photograph an image or obtain iris information through the filter unit 315 partitioned between one module and two regions. Hereinafter, a detailed structure of the camera module 300 according to the present invention will be described.

2 is a conceptual diagram illustrating a structure of a camera module according to an embodiment of the present invention.

The camera module 310 according to the present embodiment includes a housing 311, a first lens group 312, a second lens group 313, an image sensor 313, a filter unit 315, and a circuit board 181a. And a flexible printed circuit board 181b.

The first and second lens groups 312 and 313 include a plurality of lenses. The plurality of lenses may be formed to have different refractive indices, and each lens may be supported by a spacer. The housing 311 accommodates the first and second lens groups 312 and 313 and includes a lens barrel for adjusting the focus. The lens barrel adjusts the focal length of the camera 300 by adjusting the positions of the lenses included in the first and second lens groups 312 and 313. Accordingly, the camera 300 may change from a long focal length for capturing an image to a short focal length for collecting iris information.

Light passes through the first lens group 312, the filter unit 315, and the second lens group 313 in order to reach the image sensor 314. The image sensor 414 includes an image imaging region so that light passing through the first and second lens groups 312 and 313 is imaged, and converts it into an electrical signal. The image sensor 314 is connected to the circuit board 181a through the flexible circuit board 181b.

The filter unit 315 is divided into a first region 315a and a second region 315b that allow light of different wavelengths to pass therethrough. The first region 315a corresponds to an IR cut filter region that blocks infrared rays and transmits only visible light among the light passing through the first lens group 312. The second region 315b is cut off to an IR-pass filter region that blocks visible light and transmits infrared rays. The first and second regions 315a and 315b are formed to overlap two regions of the first lens group 312, respectively.

Light passing through the first lens group 312 passes through the first region 315a or the second region 315b. Based on the mode of the mobile terminal 100, the controller 180 forms an image through the light passing through the first filter region 315a in the photographing mode based on a specific control command, and the iris recognition mode. In this case, iris information is collected using light passing through the second filter region 315b. The controller 180 may capture an image using light passing through the first and second filter regions 315a and 315b and collect iris information. The first filter region 315a may be larger than the second filter region 315b.

3A is a conceptual diagram illustrating a path of light passing through the lens unit, and FIG. 3B is a conceptual diagram illustrating the filter unit.

Referring to FIG. 3A, the first lens group 312 includes first and second regions A1 and A2. The first and second areas A1 and A2 are areas corresponding to the first and second filter areas 315a and 315b. That is, light incident to the first region A1 reaches the first filter region 315a and light incident to the second region A2 reaches the second filter region 315b.

On the other hand, the first lens group 312 has a predetermined viewing angle (FoV) is incident, the first lens group 312 is based on the shape and arrangement of the lenses included in the first lens group 312 The reception area R1 and the non-reception area R2 are included. Light does not enter the non-receiving region R2. The viewing angle may be about 100 degrees and implemented as a wide lens.

The first area A1 includes the non-receiving area R2, and the second area A2 includes the receiving area R1. Light incident on one region of the preset viewing angle FoV passes through the second region A2 to reach the second filter region 315b, and light incident on the other region is the first region A1. ) Passes through the receiving region R1 to reach the first filter region 315a.

The memory 170 includes a first memory for storing the photographed image and a second memory for collecting iris information. The controller 180 stores the information collected in the photographing mode in the first memory after processing, and stores the information collected in the iris recognition mode in the second memory after processing. Processing here corresponds to noise reduction, illumination control, and the like.

Thereafter, an image or iris information is formed through information stored in each of the first and second memories. Therefore, it is not necessary to perform auto exposure (AE), auto focus (AF), and auto white balance (AWB) on the information stored in each memory.

Referring to FIG. 3, the filter unit 315 includes the first and second regions 315a and 315b divided in one direction. The first and second regions 315a and 315b are formed based on a viewing angle of the lens unit including the first and second lens groups 312 and 313, and a reception region and a non-reception region.

The second region 315b according to the present embodiment is implemented as an RGB-IR filter for passing the IR. However, the second region 315b is not limited thereto, and the IR passes through the image even when only the infrared cut filter is applied to the first and second regions. The sensor 314 may be reached. However, when the infrared cut filter and the infrared pass filter are used, the amount of infrared rays reaching the image sensor 314 may be improved.

According to the present invention, since the filter unit and the lens unit having a relatively wide viewing angle can be divided into an area that passes infrared rays and an area that blocks infrared rays, two regions can be distinguished from each other. Images can be taken or iris information can be obtained. Therefore, no additional configuration or camera module for acquiring iris information is necessary.

4A and 4B are conceptual views for explaining a method of manufacturing a filter unit.

Referring to FIG. 4A, a first prevention film 306 is formed on the second area A2 of the base part 305. The infrared blocking layer 315a is formed in the first area A1 while the first prevention film 306 is attached.

After the infrared blocking layer is formed, a second prevention film 307 is formed on the first region A1 on which the infrared blocking layer is formed, and an infrared pass layer 315b is formed on the second region A2. do.

Accordingly, the first filter region 315a for blocking infrared rays and the second filter region 315b for passing infrared rays are formed on the base portion 305.

4B illustrates a manufacturing method of forming a filter unit, according to another exemplary embodiment.

An infrared pass layer 315b is formed on one surface of the base portion 305. After the infrared pass layer is formed, the prevention film 307 is attached to the other surface. The prevention film 307 is attached to the second area A2.

In the state where the prevention film 307 is attached to the first area A2, an infrared blocking layer 315a is formed in the first area A1 of the other surface. When the prevention film 307 is removed, infrared rays are blocked in the first region A1, and the second region A2 is formed to allow infrared rays to pass through.

5 is a conceptual diagram illustrating a camera module according to another embodiment.

Referring to FIG. 5, the camera module 320 includes light passing through the first and second lens units 322 and 323 and the first and second lens units 322 and 323 mounted to the housing 321. It includes a filter portion 325 penetrates all.

The first and second lens units 322 and 323 are disposed adjacent to each other and have a specific viewing angle. The first and second lens units 322 and 323 are implemented as a first area A1 for forming a photographed image and a second area A2 for forming iris information through incident light. Each viewing angle of the first and second lens units 322 and 323 may be substantially the same.

The filter part 325 is divided into a first filter area 325a corresponding to the first lens part 322 and a second filter area 325b corresponding to the second lens part 323. The first and second filter regions 325a and 325b may have substantially the same size. The first filter area 325b is formed of an IR cut filter to form a photographed image, and the second filter area 325b is formed of an IR pass filter to pass infrared rays. Is done.

The camera module 320 according to the present exemplary embodiment includes one image sensor through which light passing through the first and second lens units 322 and 323 arrives. Therefore, the iris information and the captured image can be formed through one image sensor.

6 is a conceptual view illustrating a control method of a camera module according to the present invention.

The camera module according to the present invention forms a photographed image and / or forms iris information by using a filter unit partitioned into first and second filter regions as one module. The controller 180 forms a photographed image or forms iris information when a photographing mode or an iris recognition mode is activated.

The controller 180 controls the display unit 151 for the preview image 501 obtained by the camera 300 in the photographing mode. The display unit 151 outputs the preview image 501 in the entire area. In the photographing mode, the controller 180 is acquired by the first area A1 without processing the iris information obtained by the second area A2 and stored in the memory 170. Only the processing of the captured image stored in 170 may be performed and output on the display unit 180.

Meanwhile, when the controller switches from the photographing mode to the iris recognition mode, the controller 180 activates only one region on the display unit 151 to obtain an image of the iris information acquired by the second region A2. Output 502. In this case, the controller 180 determines whether the object to be photographed is a moving object based on the captured image collected by the first area A1. In other words, the controller 180 may determine whether a real person, an artificial eye, a photo, or the like is detected by information acquired in real time by the first area A1. When the iris recognition mode is activated, the controller 180 can execute a specific application for determining whether a detected object is a human.

In addition, the controller 180 may collect correction information necessary for obtaining the sound iris information based on the information obtained by the first area A1. The position of the facial contour or the eye may be corrected based on the correction information.

According to the present embodiment, an image may be taken or iris information may be acquired through one camera module. In addition, since the infrared blocking and passing regions can be formed by two regions partitioned by one filter portion, an additional filter structure is unnecessary.

The present invention described above can be embodied as computer readable codes on a medium in which a program is recorded. The computer-readable medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of computer-readable media include hard disk drives (HDDs), solid state disks (SSDs), silicon disk drives (SDDs), ROMs, RAMs, CD-ROMs, magnetic tapes, floppy disks, optical data storage devices, and the like. This also includes those implemented in the form of carrier waves (eg, transmission over the Internet). In addition, the computer may include the controller 180 of the terminal. Accordingly, the above detailed description should not be interpreted as limiting in all aspects and should be considered as illustrative. The scope of the invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the invention are included in the scope of the invention.

The present invention relates to a mobile terminal for forming iris information and a photographed image using one filter and an image sensor, and can be utilized in various industrial fields.

Claims (10)

Terminal body; A camera module mounted on one surface of the terminal body and collecting image capturing and / or iris information; And And a controller configured to form a captured image or iris information based on a shooting mode and an iris recognition mode. The camera module, A lens unit having a predetermined viewing angle and having a plurality of lenses stacked in a first direction; A housing accommodating the lens unit and adjusting a focal length; A filter unit disposed between the plurality of lenses to receive the light incident to the lens unit, the filter unit integrally formed with a first filter region for blocking infrared rays and a second filter region for passing infrared rays; And And a single image sensor for forming the photographed image by using the light passing through the first filter area, and for forming the iris information using the light passing through the second filter area. First and second filter zones and active and non-receive zones The method of claim 1, The lens unit is partitioned into a receiving area where the light reaches and a non-receiving area which is the rest, And the reception area overlaps with the second filter area and a partial area of the first filter area. The mobile terminal of claim 2, wherein the filter part comprises a base part, a first filter layer formed in at least one region of the base part, and a second filter layer formed in the remaining area of the base part. The method of claim 2, Based on the control command, activate the image shooting mode or the iris detection mode, And wherein the single image sensor selectively forms the photographed image or the iris information using the light passing through the lens unit based on the control command. Store in separate memory areas The method of claim 2, And a memory including a first memory area for storing information by light passing through the first filter area and a second memory area for storing information by light passing through the second filter area. Mobile terminal. Output preview image according to mode The method of claim 1, Further comprising a display unit for outputting a preview image by the camera module, The display unit outputs an image of the iris information obtained by the second filter area to one area of the display unit in the iris recognition mode. Filter unit disposed between the first and second lens group The method of claim 4, wherein The lens unit includes a first and second lens group sequentially stacked, and the filter unit is disposed between the first and second lens group. The method of claim 1, Further comprising an additional lens unit consisting of a plurality of lenses stacked in a second direction parallel to the first direction, And an area of the single image sensor overlapping the lens unit, and a remaining area of the single image sensor overlapping the additional lens unit. The method of claim 8, The single image sensor is configured to form the photographed image using the light passing through the lens unit, and to form the iris information using the light passing through the additional lens unit. The method of claim 8, And the first filter area of the filter part overlaps the lens part, and the second filter area overlaps the additional lens part.

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