KR20160031724A - Method for screen mirroring and device for the same - Google Patents

Abstract

Disclosed are a screen mirroring method and a device for the same. According to an embodiment of the present invention, the screen mirroring method includes the following steps: setting a display mode in a synchronization device; transmitting a first signal for requesting information about the set display mode in a source device; transmitting a second signal, as a response to the first signal, which includes information about the set display mode, in the synchronization device to the source device; requesting content, as a response to the second signal, which corresponds to the set display mode, to an external server in the source device; receiving the content corresponding to the set display mode in the source device from the external server; and transmitting the received content in the source device to the synchronization device. The purpose of the present invention is to provide the screen mirroring method and the device for the same wherein a user can select a display mode of the synchronization device.

Description

[0001] METHOD FOR SCREEN MIRRORING AND DEVICE FOR THE SAME [0002]

The present invention relates to a screen mirroring method and a device therefor.

Screen mirroring refers to a technique of directly mirroring a screen of a source device such as a mobile terminal to a screen of a sink device such as a TV using wireless communication. A user can enjoy a video, an image, and the like enjoyed through a mobile terminal having a display portion of a user small size directly on a TV having a relatively large display portion by using a screen mirroring technique.

However, since the screen size of the mobile terminal is small, it is often the case that the execution screen of some web pages or applications connected through the mobile terminal is composed of mobile only for convenience of the user. If such a mobile-dedicated screen is directly mirrored on a large TV, there is a problem that the convenience of the user who uses the TV can be deteriorated.

The present invention is directed to solving the above-mentioned problems and other problems.

An embodiment of the present invention also provides a screen mirroring method that allows a user to select a display mode of a sync device associated with whether to view the mobile version of the content or the PC version of the content during screen mirroring, And an object of the present invention is to provide a device.

It is another object of the present invention to provide a screen mirroring method capable of providing a user interface for setting or changing a display mode in a sink device, and an apparatus therefor.

It is another object of the present invention to provide a screen mirroring method and a device therefor that enable a screen corresponding to content suitable for a display unit of a sink device to be mirrored according to device information of a sink device.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not restrictive of the invention, unless further departing from the spirit and scope of the invention as defined by the appended claims. It will be possible.

According to an aspect of the present invention, there is provided a method of screen mirroring a source device to a sink device, the method comprising: setting a display mode in a sink device; Transmitting a first signal to the sink device in response to the first signal at the sink device, the second signal including information about the set display mode; In response to the second signal, requesting, at the source device, content corresponding to the set display mode to an external server; receiving, at the source device, content corresponding to the set display mode from an external server; , ≪ / RTI > at the source device, Transmitting to the device.

According to an aspect of the present invention, there is provided a sink device for receiving content from a source device via screen mirroring, the device including a wireless communication unit for communicating with a source device in a Wi-Fi direct mode, a display unit, Wherein the control unit detects a user input for setting a display mode of the display unit, the display mode includes a mobile browsing mode for receiving the mobile version of the content from the source device, and a personal computer version And a full browsing mode for receiving the content of the set display mode, the method comprising: receiving from the source device a first signal requesting information on the set display mode; and in response to the first signal, In mode And controls the wireless communication unit to receive the content corresponding to the set display mode from the source device through screen mirroring.

According to an aspect of the present invention, there is provided a method for receiving a device information of a sink device from a sink device, the method comprising: receiving device information of a sink device from a sink device; Receiving content corresponding to either the content or the PC version of the content from an external server; and, at the source device, transmitting the received content of the mobile version or the PC version of the content to the sink device.

The effects of the mirroring method and the apparatus therefor will be described as follows.

According to at least one of the embodiments of the present invention, in the screen mirroring, the user can select the display mode of the sink device related to whether to listen to the mobile version of the content or the PC version of the content, do.

In addition, according to at least one of the embodiments of the present invention, a convenient user interface that enables setting or changing the display mode in the sink device can be provided.

In addition, according to at least one embodiment of the present invention, a screen corresponding to content suitable for a display unit of a sink device can be screen-mirrored according to device information of a sink device.

Further scope of applicability of the present invention will become apparent from the following detailed description. It should be understood, however, that the detailed description and specific examples, such as the preferred embodiments of the invention, are given by way of illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art.

1 is a block diagram illustrating a mobile terminal as an example of a source device according to an embodiment of the present invention.
2 is a block diagram illustrating a display device as an example of a sink device according to an embodiment of the present invention.
3 is a block diagram for explaining a detailed configuration of the control unit of FIG. 2 according to an embodiment of the present invention.
4 is a diagram illustrating examples of a remote control device for controlling a display device according to an embodiment of the present invention.
5 is a flowchart illustrating an example of a method for establishing a connection between a source device and a sink device for screen mirroring according to an embodiment of the present invention.
6 is a diagram for explaining an example of a method of setting a display mode for screen mirroring in a sink device according to an embodiment of the present invention.
FIG. 7 is a diagram illustrating a screen displayed on a display unit of a display device during screen mirroring according to an exemplary embodiment of the present invention. Referring to FIG.
8 is a view for explaining a screen displayed on the display unit of the display device during screen mirroring according to an embodiment of the present invention.
9 and 10 are flowcharts for explaining an example of a process of exchanging data between a sink device and a source device according to a display mode in screen mirroring according to an embodiment of the present invention, And shows an example of the structure of data to be exchanged.
FIG. 12 and FIG. 13 are flowcharts for explaining an example of a process of exchanging data between a sink device and a source device when a display mode is changed during a screen mirroring process according to an embodiment of the present invention. FIG. And shows an example of the structure of data exchanged between devices.
FIG. 15 is a view for explaining an example of a method of changing a display mode during screen mirroring in accordance with an embodiment of the present invention.
16 is a view for explaining another example of a method for changing the display mode during screen mirroring in accordance with an embodiment of the present invention.
17 is a flowchart for explaining an example of a process of exchanging data between a sink device and a source device in screen mirroring according to an embodiment of the present invention,
18 is a diagram showing an example of the structure of data exchanged between the sink device and the source device.
19 is a flowchart illustrating an example of a process of exchanging data between a sink device and a source device according to a display mode in screen mirroring according to an embodiment of the present invention.
20 is a flowchart illustrating an example of a process of exchanging data between a sink device and a source device according to a display mode in screen mirroring according to an embodiment of the present invention.
FIG. 21 is a flowchart for explaining an example of a process of exchanging device information between a sink device and a source device in screen mirroring according to an embodiment of the present invention, FIG. 22 is an example of a data structure exchanged between a sink device and a source device Fig.

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.

1 is a block diagram illustrating a mobile terminal as an example of a source device according to an embodiment of the present invention. The mobile terminal 100 described in the present specification may be used in various applications such as a mobile phone, a smart phone, a personal digital assistant (PDA), a portable multimedia player (PMP), a navigation device, a tablet PC, a wearable device A smartwatch, a smart glass, a head mounted display (HMD)), and the like.

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 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 broadcast management server may refer to a server for generating and transmitting broadcast signals and / or broadcast related information, or a server for receiving broadcast signals and / or broadcast related information generated by the broadcast management server and transmitting the generated broadcast signals and / or broadcast related information. The broadcast signal may include a TV broadcast signal, a radio broadcast signal, a data broadcast signal, and a broadcast signal in which a data broadcast signal is combined with a TV broadcast signal or a radio broadcast signal.

The broadcasting signal may be encoded according to at least one of technical standards for transmitting and receiving a digital broadcasting signal (or a broadcasting system, for example, ISO, IEC, DVB, ATSC, etc.) It is possible to receive the digital broadcasting signal using a method conforming to the technical standard defined by the technical standards.

The broadcast-related information may be information related to a broadcast channel, a broadcast program, or a broadcast service provider. The broadcast-related information may also be provided through a mobile communication network. In this case, it may be received by the mobile communication module 112.

The broadcast-related information may exist in various forms, for example, an Electronic Program Guide (EPG) of Digital Multimedia Broadcasting (DMB) or an Electronic Service Guide (ESG) of Digital Video Broadcast-Handheld (DVB-H). The broadcast signal and / or broadcast related information received through the broadcast receiving module 111 may be stored in the memory 160.

The mobile communication module 112 may be a mobile communication module or a mobile communication module such as a mobile communication module or a mobile communication module that uses technology standards or a communication method (e.g., Global System for Mobile communication (GSM), Code Division Multi Access (CDMA), Code Division Multi Access 2000 (Enhanced Voice-Data Optimized or Enhanced Voice-Data Only), Wideband CDMA (WCDMA), High Speed Downlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA), Long Term Evolution (LTE) And an external terminal, or a server on a mobile communication network established according to a long term evolution (e. G., Long Term Evolution-Advanced).

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

The wireless Internet module 113 is a module for wireless Internet access, and may be built in or externally attached to the mobile terminal 100. The wireless Internet module 113 is configured to transmit and receive a wireless signal in a communication network according to wireless Internet technologies.

Wireless Internet technologies include, for example, wireless LAN (WLAN), wireless fidelity (Wi-Fi), wireless fidelity (Wi-Fi) Direct, DLNA (Digital Living Network Alliance), WiBro Interoperability for Microwave Access, High Speed Downlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA), Long Term Evolution (LTE) and Long Term Evolution-Advanced (LTE-A) 113 transmit and receive data according to at least one wireless Internet technology, including Internet technologies not listed above.

The wireless Internet module 113 for performing a wireless Internet connection through the mobile communication network can be used for wireless Internet access by WiBro, HSDPA, HSUPA, GSM, CDMA, WCDMA, LTE or LTE- May be understood as a kind of the mobile communication module 112.

The short-range communication module 114 is for short-range communication and may be a Bluetooth (Radio Frequency Identification), an Infrared Data Association (IrDA), a UWB (Ultra Wideband), a ZigBee, Field Communication), Wi-Fi (Wireless-Fidelity), Wi-Fi Direct, and Wireless USB (Wireless Universal Serial Bus) technology. Between the mobile terminal 100 and the wireless communication system, between the mobile terminal 100 and another mobile terminal 100, or between the mobile terminal 100 and another mobile terminal 100, or between the mobile terminal 100 and the wireless communication system through wireless local area network External server) may be connected to the network. The short-range wireless communication network may be a wireless personal area network (WLAN).

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 an image frame such as a still image or moving image obtained by the image sensor in the video communication mode or the photographing mode. The processed image frame may be displayed on the display unit 151 or stored in the memory 170. [ A plurality of cameras 121 provided in the mobile terminal 100 may be arranged to have a matrix structure and various angles or foci may be provided to the mobile terminal 100 through the camera 121 having the matrix structure A plurality of pieces of image information can be input. In addition, the plurality of cameras 121 may be arranged in a stereo structure to acquire a left image and a right image for realizing a stereoscopic image.

The microphone 122 processes the external acoustic signal into electrical voice data. The processed voice data can be utilized variously according to a function (or a running application program) being executed in the mobile terminal 100. Meanwhile, the microphone 122 may be implemented with various noise reduction algorithms for eliminating noise generated in receiving an external sound signal.

The user input unit 123 is for receiving information from a user and when the information is inputted through the user input unit 123, the control unit 180 can control the operation of the mobile terminal 100 to correspond to the input information . The user input unit 123 may include a mechanical input means (or a mechanical key such as a button located on the front, rear or side of the mobile terminal 100, a dome switch, a jog wheel, Jog switches, etc.) and touch-type input means. For example, the touch-type input means may comprise a virtual key, a soft key or a visual key displayed on the touch screen through software processing, The virtual key or the visual key can be displayed on the touch screen with various forms. For example, the virtual key or the visual key can be displayed on the touch screen, ), An icon, a video, or a combination thereof.

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 .

Also, 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.

Generally, 3D stereoscopic images consist of left image (left eye image) and right image (right eye image). A top-down method of arranging a left image and a right image in one frame according to a method in which a left image and a right image are combined into a three-dimensional stereoscopic image, A checker board system in which pieces of a left image and a right image are arranged in a tile form, a left-to-right (right-side) Or an interlaced method in which rows are alternately arranged, and a time sequential (frame-by-frame) method in which right and left images are alternately displayed in time.

In addition, the 3D thumbnail image may generate a left image thumbnail and a right image thumbnail from the left image and right image of the original image frame, respectively, and may be generated as one image as they are combined. In general, a thumbnail means a reduced image or a reduced still image. The left image thumbnail and the right image thumbnail generated in this way are displayed on the screen with a difference of the left and right distance by the depth corresponding to the parallax between the left image and the right image, thereby exhibiting a stereoscopic spatial feeling.

The left and right images necessary for realizing the three-dimensional stereoscopic image can be displayed on the stereoscopic display unit by the stereoscopic processing unit. The stereoscopic processing unit receives a 3D image (an image at a reference time point and an image at an expansion point), sets a left image and a right image therefrom, or receives a 2D image and converts it into a left image and a right image.

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.

2 is a block diagram illustrating a display device as an example of a sink device according to an embodiment of the present invention.

The display device 200 according to an exemplary embodiment of the present invention is an intelligent network TV that adds a computer support function to a broadcast reception function, for example, and is a device added to an internet function while being faithful to a broadcast reception function. For example, the display device 200 may correspond to a network TV, a smart TV, a Hybrid Brodacast Broadband Television (HBBTV), an Internet TV, a Web TV, an IPTV (Internet Protocol Television)

The display device 200 includes a broadcast receiving unit 205, an external device interface unit 235, a storage unit 240, a user input interface unit 250, a control unit 270, a display unit 280, 285, a power supply unit 290, and a photographing unit (not shown). The broadcast receiver 205 may include at least one tuner 210, a demodulator 220, and a network interface 230. In some cases, the broadcast receiver 205 may include the tuner 210 and the demodulator 220, but may not include the network interface 230, or vice versa. Although not shown, the broadcast receiver 205 includes a multiplexer to receive a signal demodulated by the demodulator 220 via the tuner 210 and a signal received via the network interface 230 May be multiplexed. In addition, the broadcast receiving unit 225 may include a demultiplexer to demultiplex the multiplexed signal, demultiplex the demodulated signal, or demultiplex the signal transmitted through the network interface unit 430 .

The tuner 210 tunes a channel selected by a user or all pre-stored channels among RF (Radio Frequency) broadcast signals received through an antenna and receives RF broadcast signals. Also, the tuner 210 converts the received RF broadcast signal into an intermediate frequency (IF) signal or a baseband signal.

For example, if the received RF broadcast signal is a digital broadcast signal, the signal is converted into a digital IF signal (DIF). If the received RF broadcast signal is an analog broadcast signal, the signal is converted into an analog baseband image or a voice signal (CVBS / SIF). That is, the tuner 210 can process both a digital broadcast signal and an analog broadcast signal. The analog baseband video or audio signal (CVBS / SIF) output from the tuner 210 can be directly input to the controller 270.

Also, the tuner 210 can receive RF broadcast signals of a single carrier or a multiple carrier. Meanwhile, the tuner 210 sequentially tunes and receives RF broadcast signals of all the broadcast channels stored through the channel memory function among the RF broadcast signals received through the antenna, converts the RF broadcast signals into intermediate frequency signals or baseband signals (DIF: Digital Intermediate Frequency or baseband signal).

The demodulation unit 220 may receive and demodulate the digital IF signal DIF converted by the tuner 210 and perform channel decoding. For this, the demodulator 220 may include a trellis decoder, a de-interleaver, a Reed-Solomon decoder, or a convolution decoder, a deinterleaver, - Solomon decoder and the like.

The demodulation unit 220 can demodulate and decode the channel, and output the stream signal TS. At this time, the stream signal may be a signal in which a video signal, a voice signal, or a data signal is multiplexed. For example, the stream signal may be an MPEG-2 TS (Transport Stream) multiplexed with an MPEG-2 standard video signal, a Dolby AC-3 standard audio signal, or the like.

The stream signal output from the demodulation unit 220 may be input to the controller 270. The control unit 270 controls demultiplexing, video / audio signal processing, and the like through the display unit 280 and audio output through the audio output unit 285.

The external device interface unit 235 provides an interface environment between the display device 200 and various external devices. To this end, the external device interface unit 235 may include an A / V input / output unit (not shown) or a wireless communication unit (not shown).

The external device interface unit 235 is connected to the external device interface unit 235 through a communication unit such as a DVD (Digital Versatile Disk), a Blu-ray, a game device, a camera, a camcorder, a computer (notebook), a tablet PC, a smart phone, device, an external device such as a cloud, or the like. The external device interface unit 235 transmits a signal including data such as image, image, and voice input through the connected external device to the controller 270 of the display device 200. The control unit 270 may control the processed image, video, audio, and the like to be output to an external device to which the data signal is connected. To this end, the external device interface unit 235 may further include an A / V input / output unit (not shown) or a wireless communication unit (not shown).

The A / V input / output unit includes a USB terminal, a CVBS (Composite Video Banking Sync) terminal, a component terminal, an S-video terminal (analog) terminal, A DVI (Digital Visual Interface) terminal, an HDMI (High Definition Multimedia Interface) terminal, an RGB terminal, a D-SUB terminal, and the like.

The wireless communication unit can perform wireless communication with another digital device. The display device 200 may be a wireless communication device such as a wireless LAN (WLAN), a wireless fidelity (Wi-Fi), a wireless fidelity , infrared data association (UWB), Ultra Wideband (UWB), ZigBee, and DLNA (Digital Living Network Alliance).

Also, the external device interface unit 235 may be connected to the set-top box (STB) through at least one of the various terminals described above to perform input / output operations with the set-top box (STB).

Meanwhile, the external device interface unit 235 may receive an application or an application list in an adjacent external device, and may transmit the received application or application list to the control unit 270 or the storage unit 240.

The network interface unit 230 provides an interface for connecting the display device 200 to a wired / wireless network including the Internet network. The network interface unit 230 may include an Ethernet terminal or the like for connection to a wired network and may be a WLAN (Wireless LAN) (Wi- Fi, Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), and HSDPA (High Speed Downlink Packet Access) communication standards.

The network interface unit 230 can transmit or receive data to another user or another digital device via the network to which it is connected or another network linked to the connected network. Particularly, it is possible to transmit some content data stored in the display device 200 to another user registered in the display device 200 or a selected one of the other digital devices or a selected digital device.

On the other hand, the network interface unit 230 can access a predetermined web page through the connected network or another network linked to the connected network. That is, it is possible to access a predetermined web page through a network and transmit or receive data with the server. In addition, content or data provided by a content provider or a network operator may be received. That is, it can receive content and related information of a movie, an advertisement, a game, a VOD, a broadcast signal, and the like provided from a content provider or a network provider through a network. In addition, it can receive update information and an update file of firmware provided by the network operator. It may also transmit data to the Internet or a content provider or network operator.

In addition, the network interface unit 230 can select and receive a desired application from the open applications through the network.

The storage unit 240 may store a program for each signal processing and control in the control unit 270 or may store a signal-processed video, audio, or data signal.

The storage unit 240 may also function to temporarily store video, audio, or data signals input from the external device interface unit 235 or the network interface unit 230. The storage unit 240 may store information on a predetermined broadcast channel through the channel memory function.

The storage unit 240 may store a list of applications or applications input from the external device interface unit 235 or the network interface unit 230.

In addition, the storage unit 240 may store various platforms described later.

The storage unit 240 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD Memory, etc.), RAM (RAM), and ROM (EEPROM, etc.). The display device 200 may reproduce and provide a content file (a moving picture file, a still picture file, a music file, a document file, an application file, etc.) stored in the storage unit 240 to a user. According to an embodiment, the storage unit 240 may be included in the control unit 270 and implemented.

The user input interface unit 250 transfers a signal input by the user to the controller 270 or a signal from the controller 270 to the user.

For example, the user input interface unit 250 may control power on / off, channel selection, screen setting, etc. from the remote control device 300 according to various communication methods such as an RF communication method and an infrared (IR) Or to transmit the control signal of the control unit 270 to the remote control device 300. [0050]

The user input interface unit 250 may transmit a control signal input from a local key (not shown) such as a power key, a channel key, a volume key, and a set value to the controller 270.

The user input interface unit 250 transmits a control signal input from a sensing unit (not shown) that senses a gesture of a user to the control unit 270, (Not shown). Here, the sensing unit (not shown) may include a touch sensor, an audio sensor, a position sensor, an operation sensor, and the like.

The control unit 270 generates a signal for video or audio output by demultiplexing or demultiplexing a stream input through the tuner 210, the demodulation unit 220, or the external device interface unit 235 And can output.

The video signal processed by the control unit 270 may be input to the display unit 280 and displayed as an image corresponding to the video signal. In addition, the image signal processed by the controller 270 can be input to the external output device through the external device interface unit 235.

The audio signal processed by the control unit 270 may be audio-output to the audio output unit 285. Also, the voice signal processed by the control unit 270 can be input to the external output device through the external device interface unit 235.

The control unit 270 may include a demultiplexing unit, an image processing unit, and the like.

The control unit 270 can control the overall operation of the display device 200. [ For example, the control unit 270 may control the tuner 210 to control tuning of a RF broadcast corresponding to a channel selected by the user or a previously stored channel.

The control unit 270 can control the display device 200 according to a user command or an internal program input through the user input interface unit 250. In particular, the user can access a network and allow a user to download a desired application or application list into the display device 200.

For example, the controller 270 controls the tuner 210 to input a signal of a selected channel according to a predetermined channel selection command received through the user input interface unit 250. And processes video, audio or data signals of the selected channel. The control unit 270 allows the display unit 280 or the audio output unit 285 to output the video or audio signal processed by the user through the channel information or the like selected by the user.

The control unit 270 controls the operation of the external device via the external device interface unit 235 according to an external device video playback command received through the user input interface unit 250. For example, So that the video signal or the audio signal of the audio signal output through the display unit 280 or the audio output unit 285 can be outputted.

Meanwhile, the control unit 270 may control the display unit 280 to display an image. For example, a broadcast image input through the tuner 210, an external input image input through the external device interface unit 235, an image input through the network interface unit, or an image stored in the storage unit 240 , And display on the display unit 280. At this time, the image displayed on the display unit 280 may be a still image or a moving image, and may be a 2D image or a 3D image.

Also, the control unit 270 can control to reproduce the content. The content at this time may be content stored in the display device 200, received broadcast content, or external input content input from the outside. The content may be at least one of a broadcast image, an external input image, an audio file, a still image, a connected web screen, and a document file.

On the other hand, when entering the application view item, the control unit 270 can control to display a downloadable application or a list of applications from the display device 200 or an external network.

The control unit 270 can control, in addition to various user interfaces, to install and operate an application downloaded from an external network. Further, it is possible to control the display unit 280 to display an image related to the executed application by the user's selection.

Although not shown in the drawing, a channel browsing processing unit for generating a channel signal or a thumbnail image corresponding to an external input signal may be further provided.

The channel browsing processing unit receives a stream signal TS output from the demodulation unit 220 or a stream signal output from the external device interface unit 235 and extracts an image from an input stream signal to generate a thumbnail image . The generated thumbnail image may be encoded as it is or may be input to the controller 270. In addition, the generated thumbnail image may be encoded in a stream format and input to the controller 270. The control unit 270 may display a thumbnail list including a plurality of thumbnail images on the display unit 280 using the input thumbnail images. On the other hand, the thumbnail images in this thumbnail list can be updated in sequence or simultaneously. Accordingly, the user can easily grasp the contents of a plurality of broadcast channels.

The display unit 280 converts an image signal, a data signal, an OSD signal processed by the control unit 270 or a video signal and a data signal received from the external device interface unit 235 into R, G, and B signals, respectively Thereby generating a driving signal.

The display unit 280 may be a PDP, an LCD, an OLED, a flexible display, a 3D display, or the like.

On the other hand, the display unit 280 may be configured as a touch screen and used as an input device in addition to the output device.

The audio output unit 285 receives a signal processed by the control unit 270, for example, a stereo signal, a 3.1 channel signal, or a 5.1 channel signal, and outputs it as a voice. The audio output unit 285 may be implemented by various types of speakers.

Meanwhile, in order to detect the user's gesture, a sensing unit (not shown) having at least one of a touch sensor, an audio sensor, a position sensor, and an operation sensor may be further included in the display device 200 . The signal sensed by the sensing unit (not shown) may be transmitted to the controller 270 through the user input interface unit 250.

On the other hand, a photographing unit (not shown) for photographing a user may be further provided. The image information photographed at the photographing unit (not shown) may be input to the control unit 270. [

The control unit 270 may sense a gesture of the user by combining the images captured by the photographing unit (not shown) or the signals sensed by the sensing unit (not shown).

The power supply unit 290 supplies the corresponding power supply throughout the display device 200.

Particularly, it is possible to supply power to a control unit 270 that can be implemented in the form of a system on chip (SoC), a display unit 280 for displaying an image, and an audio output unit 285 for audio output .

To this end, the power supply unit 290 may include a converter (not shown) for converting AC power to DC power. For example, when the display unit 280 is implemented as a liquid crystal panel having a plurality of backlight lamps, an inverter (not shown) for PWM (Pulse Width Modulation) operation for variable luminance or dimming driving and an inverter (not shown).

The remote control device 300 transmits the user input to the user input interface unit 250. To this end, the remote control device 300 can use Bluetooth, RF (radio frequency) communication, infrared (IR) communication, UWB (Ultra Wideband), ZigBee, or the like.

Also, the remote control device 500 can receive the video, audio, or data signal output from the user input interface unit 250 and display it on the remote control device 300 or output sound or vibration.

The display device 200 may be a digital broadcasting receiver capable of processing digital broadcasting signals of fixed or mobile type ATSC or DVB.

In addition, the display device according to the present invention may further include a configuration that omits some of the configuration shown in FIG. On the other hand, the display device may not receive the tuner and the demodulator, and may receive and reproduce the content through the network interface unit or the external device interface unit.

3 is a block diagram for explaining a detailed configuration of the control unit of FIG. 2 according to an embodiment of the present invention.

The control unit 270 of the display device 200 according to an embodiment of the present invention includes a demultiplexing unit 271, an image processing unit 272, an OSD generating unit 273, a mixer 274, A frame rate converter (FRC) 275, and a formatter 276. In addition, although not shown, the control unit 270 may further include a voice processing unit and a data processing unit.

The demultiplexer 270 demultiplexes the input stream. For example, the demultiplexer 270 may demultiplex the received MPEG-2 TS video, audio, and data signals. Here, the stream signal input to the demultiplexer 270 may be a stream signal output from a tuner, a demodulator, or an external device interface.

The image processing unit 272 performs image processing of the demultiplexed video signal. To this end, the image processing unit 272 may include a video decoder 272a and a scaler 272b.

The video decoder 272a decodes the demultiplexed video signal, and the scaler 272b scales the decoded video signal so that the resolution of the decoded video signal can be output from the display unit.

The video decoder 272a may support various standards. For example, the video decoder 272a performs the function of an MPEG-2 decoder when the video signal is encoded in the MPEG-2 standard, and the video decoder 272a encodes the video signal in the DMB (Digital Multimedia Broadcasting) It can perform the function of the H.264 decoder.

On the other hand, the video signal decoded by the video processor 272 is input to the mixer 274.

The OSD generating unit 273 generates OSD data according to a user input or by itself. For example, the OSD generating unit 273 generates data for displaying various data in the form of graphic or text on the screen of the display unit 280 based on the control signal of the user input interface unit. The generated OSD data includes various data such as a user interface screen (e.g., a GUI) of the display device 200, various menu screens, a widget, an icon, and viewing rate information do. The OSD generating unit 273 may generate data for displaying broadcast information based on the caption of the broadcast image or the EPG.

The mixer 274 mixes the OSD data generated by the OSD generating unit 540 and the image signal processed by the image processing unit and provides the mixed signal to the formatter 276. Since the decoded video signal and the OSD data are mixed, the OSD is overlaid on the broadcast image or the external input image.

A frame rate conversion unit (FRC) 275 converts the frame rate of an input image. For example, the frame rate conversion unit 275 may convert the frame rate of the input 60 Hz image to have a frame rate of 120 Hz or 240 Hz, for example, in accordance with the output frequency of the display unit. As described above, there are various methods for converting the frame rate. For example, when the frame rate is converted from 60 Hz to 120 Hz, the frame rate conversion unit 275 may insert the same first frame between the first frame and the second frame, Three frames can be inserted. As another example, when converting the frame rate from 60 Hz to 240 Hz, the frame rate conversion unit 275 may insert and convert three or more identical or predicted frames between existing frames. On the other hand, when the frame conversion is not performed, the frame rate conversion unit 275 may be bypassed.

The formatter 276 changes the output of the input frame rate converter 275 to match the output format of the display unit. For example, the formatter 276 may output R, G, B data signals, which may be output as low voltage differential signals (LVDS) or mini-LVDS . If the output of the frame rate conversion unit 275 is a 3D video signal, the formatter 276 may configure and output the 3D format according to the output format of the display unit to support the 3D service through the display unit.

On the other hand, the audio processing unit (not shown) in the control unit 270 can perform the audio processing of the demultiplexed audio signal. Such a voice processing unit (not shown) may support processing various audio formats. For example, even when a voice signal is coded in a format such as MPEG-2, MPEG-4, AAC, HE-AAC, AC-3, or BSAC, a corresponding decoder can be provided.

In addition, the audio processing unit (not shown) in the control unit 270 can process the base, the treble, the volume control, and the like.

A data processing unit (not shown) in the control unit 270 can perform data processing of the demultiplexed data signal. For example, the data processing unit can decode the demultiplexed data signal even when it is coded. Here, the encoded data signal may be EPG information including broadcast information such as a start time and an end time of a broadcast program broadcasted on each channel.

Meanwhile, the above-described display device 200 is an example according to the present invention, and each component can be integrated, added, or omitted according to specifications of a display device actually implemented. That is, if necessary, two or more components may be combined into one component, or one component may be divided into two or more components. In addition, the functions performed in each block are intended to illustrate the embodiments of the present invention, and the specific operations and devices thereof do not limit the scope of rights of the present invention.

4 is a diagram illustrating examples of a remote control device for controlling a display device according to an embodiment of the present invention.

In order to control the display device 200, a front panel (not shown) provided on the display device 200 may be used or a remote control device 300 may be used.

The remote control device 300 includes a remote controller 310, a keyboard 320, and a pointing device 320, which are mainly implemented for the purpose of controlling the display device 200, as a user interface device (UID) ), A touch-pad, and the like. In addition, a mobile device such as a smart phone, a tablet PC, or the like that can control the display device 200 through mode switching or the like is not included in the control device 300, but may be included in the remote control device 300.

The remote control device 300 may be any of Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (UDA), Ultra Wideband (UWB), ZigBee, Digital Living Network Alliance (DLNA) Or the like, and can communicate with the display device 200 by employing at least one or more communication protocols as needed.

The remote controller 310 is a conventional input device having various key buttons necessary for controlling the display device 200. [

The pointing device 320 includes a gyro sensor or the like and implements a pointer corresponding to the movement, pressure, and rotation of the user on the screen of the display device 200, The control command is transmitted. Such a pointing device 320 may be named with various names such as a magic remote controller, a magic controller, and the like.

Since the display device 200 provides a variety of services such as a web browser, an application, and a social network service (SNS) as an intelligent integrated digital device beyond the display device 200 providing only conventional broadcasting, It is not easy, and it is implemented to complement input and realize input convenience such as text by implementing similar to PC keyboard.

The remote control device such as the remote control 310, the pointing device 320 and the keyboard 330 may be provided with a touch pad as needed to provide more convenient and various controls such as text input, pointer movement, It can be used for the purpose.

5 is a flowchart illustrating an example of a method for establishing a connection between a source device and a sink device for screen mirroring according to an embodiment of the present invention. 5, the case where the source device that is the subject of transmission of the content in the screen mirroring is the mobile terminal 100 and the sink device that is the main body of the content is the display device 200 will be described as an example.

The wireless communication unit 110 of the mobile terminal 100 performs device discovery for searching for devices capable of communicating using a Wi-Fi direct method when a user input for activating the Wi-Fi direct function and selecting a screen mirroring menu is detected (S411). Here, the wireless communication unit 110 may be a wireless Internet module 113 or a local area communication module 114. As a result of the device discovery, it is assumed that the display device 200 has been discovered as a device capable of communicating with the mobile terminal 100 via Wi-Fi direct.

The wireless communication unit 110 of the mobile terminal 100 sets up a connection with the searched display device 200 in step S412 and performs capability negotiation for exchanging information with the display device in step S413. Then, the wireless communication unit 110 of the mobile terminal 100 establishes a RTSP (Real Time Streaming Protocol) connection with the display device 200 (S414). Thereafter, the control unit 180 of the mobile terminal 100 may transmit the content corresponding to the screen output to the display unit 151 to the display device 200 through the PLAY command based on the RTSP.

6 is a diagram for explaining an example of a method of setting a display mode for screen mirroring in a sink device according to an embodiment of the present invention. In Fig. 6, the display device 200 will be described as an example of a sink device.

6A, the control unit 270 of the display device 200 may execute an application for screen mirroring according to a user input and output the execution screen 410 to the display unit 280 have. If an application for screen mirroring is not installed in the display device 200 or a function for screen mirroring is not implemented, a separate external device required for screen mirroring may be connected to the external device interface unit 435 The control unit 270 can display the execution screen 410 on the display unit 280 when the external device is connected to the display device 200 through the external device interface unit 435, ).

For example, the execution screen 410 may include a menu 420 for setting a display mode for screen mirroring. Here, the display mode refers to whether to receive the mobile version of the content from the source device or the PC (personal computer) version of the content when the screen is mirrored. Since the size of the display unit 151 is limited in the case of the mobile terminal 100, an external server for managing the content may separately provide the mobile version of the content and the PC version of the content for user convenience. For example, in the case of a specific web site, the mobile version of the web page displayed on the display unit 151 when connected through the mobile terminal 100, and the PC version displayed on the display unit when connected through the PC Web page screen may be different.

When the user selects the menu 420 for setting the display mode in the execution screen 410, the first GUI 430 as shown in FIG. 6B may be output to the display unit 280 . In one example, the user can select the menu 420 using a pointer P corresponding to the movement of the remote control device 300. [

Referring to the first GUI 430, the display mode may be set to either a mobile browsing mode for receiving the mobile version of the content from the source device and a full browsing mode for receiving the PC version of the content from the source device . When the user selects either the mobile browsing mode or the full browsing mode through the first GUI 430 and selects the confirmation menu 431, the display mode can be set to the mode selected by the user. When the user selects the cancel menu 432 in the first GUI 430, the first GUI 430 may be removed and the execution screen 410 may be output to the display unit 280. [

Hereinafter, differences between screens displayed on the display unit 280 of the display device 200 according to the display mode when screen mirroring will be described with reference to FIGS. 7 and 8. FIG.

FIG. 7 is a diagram illustrating a screen displayed on a display unit of a display device during screen mirroring according to an exemplary embodiment of the present invention. Referring to FIG. 7, a case where a user intends to mirror a screen of a specific web site accessed through the mobile terminal 100 to the display device 200 will be described as an example. It is assumed that the external server for managing the specific web site manages the web page of the mobile version and the web page of the PC version separately.

7A, when the display mode for the screen mirroring in the display device 200 is set to the mobile browsing mode, the wireless communication unit 110 of the mobile terminal 100 transmits the display image (For example, accessing a URL corresponding to the mobile version of the web page) associated with the specific web site and outputting the screen 441 of the mobile version of the web page to the display unit 151 do. Then, the wireless communication unit 110 of the mobile terminal 100 responds to the screen 441 of the mobile version of the web page on the basis of RTSP (Real Time Streaming Protocol) to the display device 200 connected in the Wi-Fi direct system And transmits the content. The control unit 270 of the display device 200 controls the wireless communication unit to receive the content and controls the display unit 280 to output a screen 442 corresponding to the content. The screen 442 corresponds to a web version of the mobile version associated with the specific web site in which the screen 441 output to the display unit 151 of the mobile terminal 100 is screen-mirrored. The screen 442 may be output to a partial area of the display unit 280. For example, the screen 442 may be output to a central area of the entire area of the display unit 280, and the left and right of the screen 441 may be processed as black. The fact that the screen 442 is output to the central area of the display unit 280 means that the screen 442 is not displayed on the left or right side of the display unit 280, And the right-side edge area.

7B, when the display mode for the screen mirroring in the display device 200 is set to the full browsing mode, the wireless communication unit 110 of the mobile terminal 100 transmits the display mode related to the specific web site (For example, accessing a URL corresponding to the web page of the PC version) and outputting the screen 451 of the web page of the PC version to the display unit 151. [ The wireless communication unit 110 of the mobile terminal 100 transmits the content corresponding to the screen 451 of the web version of the PC version to the display device 200 connected in the Wi-Fi direct mode based on the RTSP. According to an embodiment of the present invention, when the display mode for screen mirroring in the display device 200 is set to the full browsing mode, the mobile terminal 100 can display the mobile version, Version of the web page, but not the PC version of the web page. The control unit 270 of the display device 200 controls the wireless communication unit to receive the content and controls the display unit 280 to output a screen 452 corresponding to the content. The screen 452 corresponds to a PC version of a web page related to the specific web site in which the screen 451 output to the display unit 151 of the mobile terminal 100 is directly mirrored. The screen 452 may be output to the entire area of the display unit 280.

8 is a view for explaining a screen displayed on the display unit of the display device during screen mirroring according to an embodiment of the present invention. 8, a case where a user intends to mirror an execution screen of a specific application installed in the mobile terminal 100 to the display device 200 will be described as an example. It is assumed that the external server that manages the specific application separately manages the execution version of the mobile version and the execution version of the PC version.

8A shows a case where a display mode for screen mirroring in the display device 200 is set to a mobile browsing mode and FIG. 8B shows a case where a display mode for a screen mirroring And the display mode is set to the PC browsing mode. 8 is the same as FIG. 7, except that the user executes a specific application in the mobile terminal 100, and thus a detailed description thereof will be omitted.

9 and 10 are flowcharts for explaining an example of a process of exchanging data between a sink device and a source device according to a display mode in screen mirroring according to an embodiment of the present invention, And shows an example of the structure of data to be exchanged. 9 to 11, the case where the source device is the mobile terminal 100 and the sink device is the display device 200 will be described as an example. In FIG. 9, it is assumed that the display mode of the display device 200 is set to the mobile browsing mode. In FIG. 10, it is assumed that the display mode of the display device 200 is set to the full browsing mode.

In the Capability Negotiation step S413 described above with reference to FIG. 5, the mobile terminal 100 and the display device 200 can exchange information on the set display mode.

9, the control unit 180 of the mobile terminal 100 controls the wireless communication unit 110 to transmit the first signal requesting the information on the set display mode to the display device 200. That is, (S501). For example, the wireless communication unit 110 may transmit data requesting display mode information to 'GET_PARAMETER' defined by the RTSP to the display device 200. Referring to FIG. 11A, an example of a structure of 'GET_PARAMETER' for requesting display device 200 for information on a display mode is shown. For example, the wireless communication unit 110 may include the "wfd_user_agent" field in the 'GET_PARAMETER' and transmit it to the display device 200. [

The controller 270 of the display device 200 controls the wireless communication unit to transmit the second signal including information on the set display mode to the mobile terminal 100 in operation S502. Referring to FIG. 11 (b), an example of the structure of a second signal for transmitting information on the display mode to the mobile terminal 100 is shown. For example, the wireless communication unit of the display device 200 may transmit to the mobile terminal 100 a second signal including a "wfd_user_agent: none" field indicating that the set display mode is the mobile browsing mode.

As described above, steps S501 and S502 may be performed in the Capability Negotiation step S413 described above with reference to FIG.

The controller 180 of the mobile terminal 100 controls the wireless communication unit 110 to request the content corresponding to the set mobile browsing mode to the external server 500 in operation S503. In general, when the mobile terminal 100 accesses a specific web page, the external server 500 determines whether to allow the mobile server 100 to access the web page of the mobile version by viewing the user-agent value included in the request HTTP header, To determine whether the connection is to be made. When the display mode is set to the mobile browsing mode, the wireless communication unit 110 can request the content corresponding to the mobile browsing mode to the external server 500 by setting the user-agent value to the mobile.

The control unit 180 of the mobile terminal 100 controls the wireless communication unit 110 to receive content corresponding to the mobile browsing mode from the external server 500 in operation S504. For example, the external server 500 may transmit the content corresponding to the mobile version of the web page to the mobile terminal 100 by viewing the user-agent value included in the Request HTTP Header.

The control unit 180 of the mobile terminal 100 outputs the received content to the screen of the display unit 151 and transmits the content corresponding to the displayed screen to the display device 200. [ (S505). As a result, the screen displayed on the display unit 280 of the display device 200 is as described above with reference to FIG. 7 (a) or FIG. 8 (a). 10, the controller 180 of the mobile terminal 100 controls the wireless communication unit 110 to transmit the first signal requesting information on the set display mode to the display device 200 S511). For example, the wireless communication unit 110 may transmit data requesting display mode information to 'GET_PARAMETER' defined by the RTSP to the display device 200. An example of the structure of 'GET_PARAMETER' may be as shown in FIG. 11 (a).

The controller 270 of the display device 200 controls the wireless communication unit to transmit the second signal including information on the set display mode to the mobile terminal 100 in operation S512. Referring to FIG. 11 (c), an example of the structure of a second signal for transmitting information on a display device to the mobile terminal 100 is shown. For example, the wireless communication unit of the display device 200 may transmit to the mobile terminal 100 a second signal including a "wfd_user_agent: full" field indicating that the set display mode is a full browsing mode.

As described above, steps S511 and S512 may be performed in the capability negotiation step S413 described above with reference to FIG.

According to the embodiment, the mobile terminal 100 can display the resolution information of the display device 200 only when the resolution of the display device 200 is equal to or greater than a preset level, based on the resolution information received from the display device 200 in the capability negotiation step S413 And to transmit a first signal to the display device 200 to request information about the mode. At this time, if the resolution of the display device 200 is less than a preset level, the mobile terminal 100 does not transmit the first signal for requesting the information of the mode of the display device to the display device 200, 151 can be mirrored on the display device 200 as they are.

The controller 180 of the mobile terminal 100 controls the wireless communication unit 110 to request the content corresponding to the set full browsing mode to the external server 500 at step S513. The wireless communication unit 110 may set the user-agent value to the PC rather than the mobile so that the external server 500 can request the content corresponding to the full browsing mode.

The control unit 180 of the mobile terminal 100 controls the wireless communication unit 110 to receive the content corresponding to the full browsing mode from the external server 500 at step S514. For example, the external server 500 may transmit the content corresponding to the web page of the PC version to the mobile terminal 100 by viewing the user-agent value included in the Request HTTP Header.

The control unit 180 of the mobile terminal 100 outputs the received content to the screen of the display unit 151 and transmits the content corresponding to the displayed screen to the display device 200. [ (S515). As a result, the screen displayed on the display unit 280 of the display device 200 is as described above with reference to FIG. 7 (b) or FIG. 8 (b).

According to the embodiment, the source device and the sink device may exchange their device information with each other in any one of steps S412 to S414 with reference to Fig. Here, the device information may be a type of device, a manufacturer name of the device, a model name of the device, a version of the device model, a size of the device, a size of the display unit, an aspect ratio of the display unit, In this case, the above-described steps S501 and S502 or steps S511 and S12 may be omitted. For example, the source device determines that the sink device is a device (e.g., a TV, a monitor, a computer, a signage, a notebook computer, etc.) having a large-screen display unit other than a mobile terminal, based on device information transmitted from the sink device Or when the size of the display portion is equal to or larger than a predetermined level (for example, 13 inches), or the aspect ratio of the display portion corresponds to a predetermined aspect ratio (for example, 16: 9, 32: 9, It is possible to omit the step of requesting and receiving information on the mode and to control the wireless communication unit 110 to request the content corresponding to the full browsing mode to the external server 500. [ This is because, if the sink device is a display device on a large screen, it is the intention of the user to enjoy the PC version of the mobile version rather than the mobile version through screen mirroring. As another example, the source device may be configured so that, when the sink device is found to be a mobile terminal, based on the device information transmitted from the sink device, or when the size of the display unit is not more than a predetermined degree (for example, 9 inches or less) The source device may skip the step of requesting and receiving information regarding the display mode and request the content corresponding to the mobile browsing mode to the external server 500. [

Alternatively, according to an embodiment, the source device may request the sink device for the device information in addition to the information about the display mode. Then, the sink device may transmit the device information to the source device in addition to the information on the set display mode. In this case, the source device is a device (for example, a TV, a monitor, a computer, a signage, a notebook, or the like) having a large-size display unit instead of a mobile terminal based on device information transmitted from the sink device Or when the size of the display unit is equal to or greater than a predetermined level (for example, 13 inches) or the aspect ratio of the display unit corresponds to a predetermined aspect ratio (for example, 16: 9, 32: 9, The external server 500 may request content corresponding to the full browsing mode regardless of what display mode is set. As another example, the source device may be configured so that, when the sink device is found to be a mobile terminal, based on the device information transmitted from the sink device, or when the size of the display unit is not more than a predetermined degree (for example, 9 inches or less) The source device can request the content corresponding to the mobile browsing mode to the external server 500 regardless of what display mode is set.

Hereinafter, an example in which the display mode is changed while the screen mirroring is proceeding according to the embodiment of the present invention will be described with reference to FIG. 12 to FIG.

FIG. 12 and FIG. 13 are flowcharts for explaining an example of a process of exchanging data between a sink device and a source device when a display mode is changed during a screen mirroring process according to an embodiment of the present invention. FIG. And shows an example of the structure of data exchanged between devices. 12 and 13, the case where the source device is the mobile terminal 100 and the sink device is the display device 200 will be described as an example. 12, it is assumed that the display mode of the display device 200 is changed from the full browsing mode to the mobile browsing mode while the screen mirroring is in progress. In FIG. 13, To the full browsing mode.

12, the wireless communication unit 110 of the mobile terminal 100 transmits content corresponding to the full browsing mode to the display device 200 based on the RTSP, and transmits the content corresponding to the full browsing mode to the display unit 200 280) can output the content as a full screen (S521).

During screen mirroring, the user may change the display mode from the full browsing mode to the mobile browsing mode at the display device 200 (S522). A method of changing the display mode will be described later in more detail with reference to FIG. 15 and FIG.

When a user command to change the display mode is detected, the controller 270 of the display device 200 transmits a third signal including information on the changed display mode to the mobile terminal 100 (S523). For example, the control unit 270 may transmit information on the changed display mode to the 'SET_PARAMETER' defined by the RTSP and transmit the information to the mobile terminal 100. Referring to FIG. 14A, an example of a structure of a 'SET_PARAMETER' for transmitting information on a changed display mode to the mobile terminal 100 is shown. For example, the wireless communication unit of the display device 200 may include the "wfd_user_agent: none" field indicating that the changed display mode is the mobile browsing mode in the SET_PARAMETER and transmit it to the mobile terminal 100.

The wireless communication unit 110 of the mobile terminal 100 transmits a response signal to the third signal to the display device 200 at step S524 and transmits the content corresponding to the changed mobile browsing mode to the external server 500 (S525). For example, the wireless communication unit 110 may request the content corresponding to the mobile browsing mode to the external server 500 by causing the user-agent value to be reset to the mobile.

The wireless communication unit 110 of the mobile terminal 100 receives the content corresponding to the mobile browsing mode from the external server 500 (S526). For example, the external server 500 may transmit the content corresponding to the mobile version of the web page to the mobile terminal 100 by viewing the user-agent value included in the Request HTTP Header.

The wireless communication unit 110 of the mobile terminal 100 outputs the content for the received full browsing mode to the display unit 151 and transmits the content corresponding to the output screen to the display device 200 (S529). Accordingly, for example, the screen displayed on the display unit 280 of the display device 200 may be changed as shown in (a) of FIG. 7 or as shown in (a) of FIG. 8 can be changed.

Meanwhile, according to the embodiment, when the display mode is changed, the display device 200 can pause the content stream for screen mirroring (S527). For example, the wireless communication unit 110 of the mobile terminal 100 transmits a response signal for the third signal to the display device 200, and then triggers a pause (PAUSE) of content streaming for screen mirroring To the display device 200, and the wireless communication unit of the display device 200 may pause the content streaming in response to the fourth signal. The wireless communication unit 110 of the mobile terminal 100 receives the content for the mobile browsing mode from the external server 500 and then transmits the content for triggering the start of content streaming for screen mirroring 5 signal to the display device 200 and the wireless communication unit of the display device 200 may resume the content streaming in response to the fifth signal (S528, S529).

13, the wireless communication unit 110 of the mobile terminal 100 transmits content corresponding to the mobile browsing mode to the display device 200 based on the RTSP, and transmits the content corresponding to the mobile browsing mode to the display unit 280 of the display device 200. [ May output the content to a partial area (S531).

During the screen mirroring, the user can change the display mode from the mobile browsing mode to the full browsing mode at the display device 200 (S532). The change of the display mode will be described later in more detail with reference to FIGS. 15 and 16 .

The controller 270 of the display device 200 transmits a third signal including information on the changed display mode to the mobile terminal 100 when a user command for changing the display mode is sensed (S533). For example, the control unit 270 may transmit information on the changed display mode to the 'SET_PARAMETER' defined by the RTSP and transmit the information to the mobile terminal 100. Referring to FIG. 14 (b), an example of a structure of a 'SET_PARAMETER' for transmitting information on a changed display mode to the mobile terminal 100 is shown. For example, the wireless communication unit of the display device 200 may include the "wfd_user_agent: full" field indicating that the changed display mode is the full browsing mode in the SET_PARAMETER and transmit it to the mobile terminal 100.

The wireless communication unit 110 of the mobile terminal 100 transmits a response signal to the third signal to the display device 200 in step S534 and transmits the content corresponding to the changed full browsing mode to the external server 500 (S535). For example, the wireless communication unit 110 may request the content corresponding to the full browsing mode to the external server 500 by causing the user-agent value to be reset to the PC.

The wireless communication unit 110 of the mobile terminal 100 receives the content corresponding to the full browsing mode from the external server 500 (S536). For example, the external server 500 may transmit the content corresponding to the web page of the PC version to the mobile terminal 100 by viewing the user-agent value included in the Request HTTP Header.

The wireless communication unit 110 of the mobile terminal 100 outputs the content for the received mobile browsing mode to the display unit 151 and transmits the content corresponding to the output screen to the display device 200 (S539). Accordingly, for example, the screen displayed on the display unit 280 of the display device 200 may be changed as shown in (b) of FIG. 7, or may be changed as shown in (b) can be changed.

Meanwhile, according to the embodiment, when the display mode is changed, the display device 200 may PAUSE the content stream for screen mirroring (S537). For example, the wireless communication unit 110 of the mobile terminal 100 may transmit a response signal for the third signal to the display device 200, and then transmit a response signal to the display device 200 to trigger a pause of content streaming for screen mirroring 4 signal to the display device 200 and the wireless communication portion of the display device 200 may pause the content streaming in response to the fourth signal. The wireless communication unit 110 of the mobile terminal 100 receives the contents for the full browsing mode from the external server 500 and then transmits the contents for triggering the start of content streaming for screen mirroring 5 signal to the display device 200, and the wireless communication unit of the display device 200 may restart the content streaming in response to the fifth signal (S538, S539).

Hereinafter, an example of a method for changing the display mode during the screen mirroring according to an embodiment of the present invention will be described with reference to FIGS. 15 and 16. FIG.

FIG. 15 is a view for explaining an example of a method of changing a display mode during screen mirroring in accordance with an embodiment of the present invention.

Referring to FIG. 15A, the display mode for screen mirroring is set to the current mobile browsing mode, and a screen 601 corresponding to the mobile browsing mode is displayed in a partial area of the display unit 280.

The control unit 270 of the display device 200 may control the display unit 270 to output the first GUI 610 for changing the display mode when a predetermined user input is detected. For example, the predetermined user input may be a user input for selecting a specific hot key provided in the remote control apparatus 300, a pointer P corresponding to the motion of the remote control apparatus 300, As shown in FIG. For example, when the currently set display mode is the mobile browsing mode, the first GUI 610 displays a message asking whether to change the display mode to the full browsing mode, a confirmation menu 611 for changing the display mode to the full browsing mode ). When the user selects the confirmation menu 611 using the remote control device 300, the display mode may be changed to the full browsing mode.

15 (b), the display mode for screen mirroring is set to the full browsing mode, the screen 602 corresponding to the full browsing mode is output to the entire area of the display unit 280 have.

The control unit 270 of the display device 200 may control the display unit 270 to output the first GUI 610 for changing the display mode when a predetermined user input is detected. For example, the predetermined user input may be a user input for selecting a specific hot key provided in the remote control apparatus 300, a pointer P corresponding to the motion of the remote control apparatus 300, As shown in FIG. For example, when the currently set display mode is the full browsing mode, the first GUI 610 displays a message for asking whether to change the display mode to the mobile browsing mode, a confirmation menu 611 for changing the display mode to the mobile browsing mode ). When the user selects the confirmation menu 611 using the remote control device 300, the display mode may be changed to the mobile browsing mode.

16 is a view for explaining another example of a method for changing the display mode during screen mirroring in accordance with an embodiment of the present invention.

16 (a), the display mode for screen mirroring is set to the current mobile browsing mode, and the screen 601 corresponding to the mobile browsing mode is displayed in a partial area of the display unit 280. [

The controller 270 of the display device 200 can change the display mode from the mobile browsing mode to the full browsing mode when a predetermined user input is detected (Fig. 16 (a) -> (b)). For example, the predetermined user input may be a pointer (P) corresponding to the movement of the remote controller 300 from the area where the screen 601 is outputted to the left edge area or the right edge area of the display part 280 Lt; / RTI > For example, the controller 270 detects a first signal for selecting a point among the areas where the screen 601 is output, and the pointer (P) corresponding to the motion of the remote controller 300 senses a first signal The user can change the display mode from the mobile browsing mode to the full browsing mode when detecting the second signal that the pointer P is dragged toward the left edge area or the right edge area of the display unit 280 have.

According to the present embodiment, when changing the display mode from the mobile browsing mode to the full browsing mode, the user can intuitively use the screen mirroring to enlarge the screen image displayed on the display unit 280 to the entire area of the display unit 280 Since only the operation is required, user convenience is emphasized.

16 (b), the display mode for screen mirroring is set to the full browsing mode, the screen 602 corresponding to the full browsing mode is output to the entire area of the display unit 280 have.

The controller 270 of the display device 200 can change the display mode from the full browsing mode to the mobile browsing mode when the preset user input is detected (FIG. 16 (b) → (a)). For example, the predetermined user input is a function of dragging the pointer P corresponding to the motion of the remote controller 300 from the left area or the right area of the display part 280 toward the center area of the display part 280 It can be a user input. The controller 270 detects a first signal that a pointer P corresponding to the motion of the remote controller 300 selects any one of the left region and the right region of the display unit 280, The display mode can be changed from the full browsing mode to the mobile browsing mode when the second signal is detected by dragging the pointer P toward the central area of the display unit 280 while the arbitrary point is selected. Here, the central area of the display unit 280 refers to a region located in the center when the entire screen of the display unit 280 is vertically triangulated, and the left and right areas of the display unit 280 refer to, A region located on the left side and a region located on the right side when the entire screen of the display unit 280 is vertically trisected.

According to the present embodiment, when changing the display mode from the full browsing mode to the mobile browsing mode, the user can intuitively reduce the screen image displayed on the display unit 280 by screen mirroring to a partial area of the display unit 280 Since only the operation is required, user convenience is emphasized.

Hereinafter, an example of the screen mirroring method will be described with reference to Figs. 17 and 18 when the display device 200 is a source device and the mobile terminal 100 is a sink device. At this time, if the mobile terminal 100 has a function of receiving content as a sink device, or if a function of receiving content as a sink device is not implemented, the mobile terminal 100 performs screen mirroring through the interface unit 160 It is assumed that an external device is connected to the mobile terminal 100.

FIG. 17 is a flowchart for explaining an example of a process of exchanging data between a sink device and a source device in a screen mirroring according to an embodiment of the present invention, FIG. 18 is an example of a structure of data exchanged between a sink device and a source device Fig. 17, the case where the source device is the display device 200 and the sink device is the mobile terminal 100 will be described as an example.

In the Capability Negotiation step S413 described above with reference to FIG. 5, the mobile terminal 100 and the display device 200 can exchange information on the set display mode.

The controller 270 of the display device 200 controls the wireless communication unit to transmit the first signal requesting the information on the set display mode to the mobile terminal 100 in step S701. For example, the wireless communication unit of the display device 200 may transmit data requesting information on the display mode to the 'GET_PARAMETER' defined by the RTSP to the mobile terminal 100. Referring to FIG. 18A, an example of a structure of 'GET_PARAMETER' for requesting information on a display mode to the mobile terminal 100 is shown. For example, the wireless communication unit may include the "wfd_user_agent" field in the 'GET_PARAMETER' and transmit it to the mobile terminal 100.

The controller 180 of the mobile terminal 100 controls the wireless communication unit 110 to transmit the second signal including information on the display mode to the display device 200 in step S702. 18B, an example of the structure of a second signal for transmitting information on the display mode to the display device 200 is shown. For example, the wireless communication unit 110 may transmit to the display device 200 a second signal including a "wfd_user_agent: mobile" field indicating that the display mode is a mobile only mode.

According to an embodiment, the display mode may be set to a mobile-only mode by a user in the mobile terminal 100, or may be set to a mobile-only mode by default. When the mobile terminal 100 operates as a sink device in the screen mirroring, receiving the mobile version of the content, rather than receiving the PC version of the content from the display device 200 due to the limitation of the size of the display portion 151, This is because it can meet the intention of.

As described above, steps S701 and S702 may be performed in the Capability Negotiation step S413 described above with reference to FIG.

The controller 270 of the display device 200 controls the wireless communication unit to request the content corresponding to the mobile-only mode to the external server 700 (S703). In general, when accessing a specific web page through the display device 200, the external server 700 confirms that the user-agent value contained in the Request HTTP Header is the PC, and the display device 200 displays the web page of the PC version . However, according to the present embodiment, the control unit 270 can control the wireless communication unit to request the content corresponding to the mobile browsing mode to the external server 700 by allowing the user-agent value to be set to the mobile rather than the PC .

The control unit 270 of the display device 200 controls the wireless communication unit to receive the content corresponding to the mobile only mode from the external server 700 (S704). For example, the external server 700 may transmit the content corresponding to the mobile version of the web page to the display device 200 by viewing the user-agent value included in the Request HTTP Header.

The control unit 270 of the display device 200 outputs the received content to the screen of the display unit 151 and controls the wireless communication unit to transmit the content corresponding to the output screen to the mobile terminal 100 (S705).

Up to now, the case where the content itself is streamed from the source device to the sink device has been described as an example. Hereinafter, an example of transferring an address for content reception from a source device to a sink device, rather than streaming the content itself from the source device to the sink device, will be described with reference to FIG. 19 and FIG.

19 is a flowchart illustrating an example of a process of exchanging data between a sink device and a source device according to a display mode in screen mirroring according to an embodiment of the present invention. In Fig. 19, the case where the source device is the mobile terminal 100 and the sink device is the display device 200 will be described as an example. In Fig. 19, it is assumed that the display mode in the display device 200 is set to the mobile browsing mode. The contents overlapping with those described above with reference to FIG. 9 are not described in detail.

The controller 180 of the mobile terminal 100 controls the wireless communication unit 110 to transmit the first signal requesting the information on the set display mode to the display device 200 in step S801. Then, the controller 270 of the display device 200 controls the wireless communication unit to transmit the second signal including the set display mode information to the mobile terminal 100 (S802).

The control unit 180 of the mobile terminal 100 may transmit URL (Uniform Resource Locator) information for receiving the mobile version of the content to the display device 200 when the set display mode is the mobile browsing mode (S803 ). For example, the external server 800, which manages a particular web site, may make URLs for the mobile version of the web page and URLs for the PC version of the web page different, May store both the URL information for the mobile version of the web page and the URL for the PC version of the web page in relation to the particular web site. The control unit 180 of the mobile terminal 100 may include the URL information for receiving the mobile version of the content in the SET_PARAMETER and transmit the URL information to the display device 200. [

The control unit 270 of the display device 200 can execute the web browser (S804) and control the wireless communication unit 110 to access the mobile version web page based on the received URL information (S805) . According to the embodiment, the controller 270 of the display device 200 executes the web browser and sets the user-agent value to the mobile based on the received URL information, so that the content corresponding to the mobile browsing mode is transmitted to the external server (800).

The control unit 270 of the display device 200 receives the content from the external server 800 in step S806 and outputs the screen corresponding to the received content to the display unit 280. [ The screen corresponding to the received content may be as described above with reference to Fig. 7 (a) or Fig. 8 (a).

20 is a flowchart illustrating an example of a process of exchanging data between a sink device and a source device according to a display mode in screen mirroring according to an embodiment of the present invention. In Fig. 20, the case where the source device is the mobile terminal 100 and the sink device is the display device 200 will be described as an example. In FIG. 20, it is assumed that the display mode of the display device 200 is set to the full browsing mode. The contents overlapping with those described above with reference to Fig. 10 will not be described again.

The control unit 180 of the mobile terminal 100 controls the wireless communication unit 110 to transmit the first signal requesting the information on the set display mode to the display device 200 in operation S811. Then, the controller 270 of the display device 200 controls the wireless communication unit to transmit the second signal including the set display mode information to the mobile terminal 100 (S812).

The control unit 180 of the mobile terminal 100 may transmit the URL information for receiving the full version of the content to the display device 200 when the set display mode is the full browsing mode in operation S813. For example, the external server 800, which manages a particular web site, may make URLs for the mobile version of the web page and URLs for the PC version of the web page different, May store both the URL information for the mobile version of the web page and the URL for the PC version of the web page in relation to the particular web site. The control unit 180 of the mobile terminal 100 may include the URL information for receiving the full version of the content in the SET_PARAMETER and transmit the URL information to the display device 200. [

The control unit 270 of the display device 200 can execute the web browser (S814) and control the wireless communication unit 110 to access the PC version web page based on the received URL information (S815) . According to the embodiment, the controller 270 of the display device 200 executes the web browser and sets the user-agent value to the PC based on the received URL information, so that the content corresponding to the full browsing mode is transmitted to the external server (800).

The control unit 270 of the display device 200 may receive the content from the external server 800 in step S816 and may output the screen corresponding to the received content to the display unit 280. [ The screen corresponding to the received content may be as described above with reference to Fig. 7 (b) or Fig. 8 (b).

FIG. 21 is a flowchart for explaining an example of a process of exchanging device information between a sink device and a source device in screen mirroring according to an embodiment of the present invention, FIG. 22 is an example of a data structure exchanged between a sink device and a source device Fig. 21 and 22, the case where the source device is the mobile terminal 100 and the sink device is the display device 200 will be described as an example. In Fig. 21, the display mode in the display device 200 may or may not be set.

The control unit 180 of the mobile terminal 100 controls the wireless communication unit 110 to transmit the first signal including the device information of the mobile terminal 100 to the display device 200 at step S901. For example, the wireless communication unit 110 transmits an M1 (OPTIONS) message including at least one of a device manufacturer name, a device model name, and a device model version as device information of the mobile terminal 100 to the display device (200). Referring to FIG. 22 (a), an example of the structure of an M1 (OPTIONS) message including device information of the mobile terminal 100 is shown.

The controller 270 of the display device 200 controls the wireless communication unit to transmit a second signal indicating that the first signal has been received to the mobile terminal 100 (S902).

The control unit 270 of the display device 200 controls the wireless communication unit to transmit the third signal including the device information of the display device 200 to the mobile terminal 100 (S903). For example, the wireless communication unit transmits an M2 (OPTIONS) message including at least one of a device manufacturer name, a device model name, and a device model version as device information of the display device 200 to the mobile terminal 100, Lt; / RTI > Referring to FIG. 22 (b), an example of the structure of an M2 (OPTIONS) message including device information of the display device 200 is shown.

The control unit 180 of the mobile terminal 100 controls the wireless communication unit 110 to transmit the fourth signal indicating that the third signal has been received to the display device 200 at step S904.

Steps S901 to S904 may be performed in any one of steps S412 to S413 described above with reference to Fig. 5

The control unit 180 of the mobile terminal 100 transmits the PC version of the content to the wireless communication unit 110 to request the external server 500 of the content based on the device information of the display device 200 included in the third signal (S905). That is, when the device information included in the third signal corresponds to a display device having a larger screen than a mobile device such as a TV, a computer, a monitor, a monitor, a notebook, a netbook, etc., the controller 180 of the mobile terminal 100, The wireless communication unit 110 can request the contents of the PC version to the external server 500 by setting the user-agent value to the PC rather than the mobile.

The control unit 180 of the mobile terminal 100 controls the wireless communication unit 110 to receive the PC version of the content from the external server 500 (S906). For example, the external server 500 may transmit the PC version of the content to the mobile terminal 100 by viewing the user-agent value included in the Request HTTP Header.

The control unit 180 of the mobile terminal 100 outputs the received content to the screen of the display unit 151 and transmits the content corresponding to the displayed screen to the display device 200. [ (S907). As a result, the screen displayed on the display unit 280 of the display device 200 is as described above with reference to FIG. 7 (b) or FIG. 8 (b).

In the present embodiment, the case where the display device 200 of a large screen such as a TV is a sink device is described as an example. However, when the sink device is a mobile device such as the mobile terminal 100, It may request the mobile version of the content to the external server 500 based on the information and screen mirror the screen corresponding to the mobile version of the content transmitted from the external server 500 to the sink device. Accordingly, when the source device receives the information on the display mode from the sink device as described above with reference to Figs. 9 to 11, the source device gives priority to the display mode set by the user, May request the mobile version or the PC version of the content, Accordingly the first device information of the sink device other than the specified display mode may request the contents of a mobile version or PC version in the external server 500. The

According to the embodiment of the present invention, the user can select a display mode of the sink device related to whether to listen to the mobile version of the content or the PC version of the content when the screen is mirrored. According to an embodiment of the present invention, a user interface for setting or changing a display mode in the sink device can be provided. According to an embodiment of the present invention, a screen corresponding to content suitable for a display unit of a sink device can be mirrored according to device information of a sink device.

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). The foregoing detailed description should not be construed in all aspects as limiting 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.

100: mobile terminal
200: Display device

Claims (20)

A method of screen mirroring a screen output to a display unit of a source device to a display unit of a sink device,
Setting a display mode at the sink device, the display mode comprising: a mobile browsing mode for receiving the mobile version of the content from the source device; and a full browsing for receiving the content of a personal computer (PC) version from the source device Mode;
Transmitting, at the source device, a first signal requesting information on the set display mode to the sink device;
Transmitting, in response to the first signal, a second signal to the source device, the second signal including information about the set display mode at the sink device;
In response to the second signal, requesting, at the source device, content corresponding to the set display mode to an external server;
Receiving, at a source device, content corresponding to the set display mode from an external server; And
And transmitting, at the source device, the received content to a sink device. The method according to claim 1,
Wherein the transmitting the first signal to the sink device comprises:
Using the 'GET_PARAMETER' defined by the Real Time Streaming Protocol (RTSP), to request information about the set display mode. The method according to claim 1,
Wherein the step of receiving content corresponding to the set display mode from an external server comprises:
And accessing a URL (Uniform Resource Locator) for receiving the contents of the PC version when the set display mode is the full browsing mode. The method according to claim 1,
In the sink device, changing the display mode;
Transmitting, at the sink device, a third signal including information on the changed display mode to the source device;
In response to the third signal, requesting, at the source device, content corresponding to the changed display mode to an external server;
Receiving, at the source device, content corresponding to the changed display mode from an external server; And
And transmitting, at the source device, the received content to the sink device. 5. The method of claim 4,
Wherein the transmitting the third signal to the source device comprises:
And transmitting information on the changed display mode using 'SET_PARAMETER' defined by RTSP (Real Time Streaming Protocol). 5. The method of claim 4,
And pausing screen mirroring from the source device to the sink device when the display mode is changed. The method according to claim 1,
Receiving, at the source device, resolution information of the sink device from the sink device,
Wherein the step of transmitting the first signal to the sink device is performed only when the resolution of the sink device is equal to or greater than a predetermined level based on the received resolution information. 5. The method of claim 4,
The step of changing the display mode in the sink device comprises:
And outputting, in the sink device, a GUI for changing the display mode according to a predetermined user input. The method according to claim 1,
And outputting the mirrored content to the first area of the display unit in the sink device when the set display mode is the mobile browsing mode,
Wherein the first region does not contact the left edge region and the right edge region of the display section. 10. The method of claim 9,
Detecting, in the sink device, a first signal that a pointer corresponding to the movement of the remote controller selects any one of the first areas;
Detecting, in the sink device, a second signal for dragging the pointer from the first area toward the left edge area or the right edge area of the display part with the arbitrary point selected; And
And changing the display mode from the mobile browsing mode to the full browsing mode according to the sensed second signal. The method according to claim 1,
If the set display mode is the full browsing mode, outputting the transmitted content to the entire area of the display unit in the sink device;
Detecting, in the sink device, a first signal that a pointer corresponding to a motion of the remote controller selects any one of a left region and a right region of the display unit;
Detecting, in the sink device, a second signal for dragging the pointer from the arbitrary point toward the central area of the display unit, with the arbitrary point selected; And
And changing the display mode from the full browsing mode to the mobile browsing mode according to the sensed signal. The method according to claim 1,
And connecting the source device and the sink device in a Wi-Fi direct manner. 1. A sink device for receiving content from a source device via screen mirroring,
A wireless communication unit for communicating with the source device in a Wi-Fi direct mode;
A display unit; And
And a control unit,
Wherein,
Wherein the display mode includes a mobile browsing mode for receiving the mobile version of the content from the source device and a pool for receiving the content of the PC (personal computer) version from the source device, and a full browsing mode,
Receiving a first signal requesting information on the set display mode from the source device and transmitting in response to the first signal a second signal including information on the set display mode to the source device, And controls the wireless communication unit to receive from the source device corresponding to the set display mode. 14. The method of claim 13,
Wherein the information on the set display mode is received from the source device via 'GET_PARAMETER' defined by RTSP (Real Time Streaming Protocol). 14. The method of claim 13,
Wherein,
Detecting a user input for changing a display mode of the display mode,
Controls the wireless communication unit to transmit a third signal including information on the changed display mode to the source device,
Wherein the information on the changed display mode is transmitted to the source device using 'SET_PARAMETER' defined by RTSP (Real Time Streaming Protocol). A method of screen mirroring a screen output to a display unit of a source device to a display unit of a sink device,
Receiving device information of a sink device from a sink device in a source device, the device information including at least one of a device type, a device manufacturer name, a device model name, a device model version, a device size, And an aspect ratio of the display unit;
Receiving, at the source device, content corresponding to either the mobile version of the content or the PC version of the content from the external server based on the received device information; And
And transmitting, at the source device, the received mobile version of the content or the PC version of the content to the sink device. 17. The method of claim 16,
Wherein the step of receiving, from the external server, content corresponding to any one of the mobile version of the content or the PC version of the content is performed by the sink device based on the received device information, And if so, the PC version of the content is received from the external server. 17. The method of claim 16,
Wherein the step of receiving, from the external server, content corresponding to any one of the content of the mobile version or the content of the PC version is performed on the basis of the received device information by using any one of the mobile phone, PDA, The mobile version of the content is received from the external server. 17. The method of claim 16,
When the size of the display unit of the sink device is equal to or greater than a preset level based on the received device information in the step of receiving content corresponding to any one of the mobile version of the content or the PC version of the content from the external server, Is received from the external server. 17. The method of claim 16,
If the aspect ratio of the display unit of the sink device corresponds to a predetermined aspect ratio based on the received device information in the step of receiving content corresponding to any one of the mobile version of the content or the PC version of the content from the external server, PC version of the content is received from the external server.

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