KR20120046989A

KR20120046989A - Method for displaying moving picture in display apparatus and display apparatus thereof

Info

Publication number: KR20120046989A
Application number: KR1020100108594A
Authority: KR
Inventors: 박우황
Original assignee: 엘지전자 주식회사
Priority date: 2010-11-03
Filing date: 2010-11-03
Publication date: 2012-05-11

Abstract

According to an embodiment of the present invention, a video display method includes selecting a specific video, analyzing a resolution of the selected video, calculating an optimal screen size of the selected video according to the analyzed resolution, and playing back the selected video. If a command is received, displaying a message for guiding an optimal screen size of the selected video.

Description

Method for displaying moving picture in display apparatus and display apparatus

The present invention relates to a method for providing an optimal screen size when playing a video on a video display device.

In recent years, digital TV services using wired or wireless communication networks have become commonplace. Digital TV service can provide a variety of services that could not be provided in the conventional analog broadcasting service.

For example, the IPTV (Internet Protocol Television) service, which is a type of digital TV service, provides an interactive feature that allows a user to actively select a type of viewing program and a viewing time. The IPTV service may provide various additional services such as internet search, home shopping, online game, etc. based on this bidirectionality.

An object of the present invention is to provide a video display method and a video display device using the same that can provide the optimum screen size according to the resolution when playing the video in the video display device.

The video display device according to an embodiment of the present invention selects a user input interface unit for receiving a predetermined user input, a display unit for displaying a video playback screen, and a specific video to analyze the resolution of the selected video and analyze the resolution. Computing the optimum screen size of the selected video according to the resolution, and when receiving a playback command of the selected video from the user input interface unit, to display a message on the display to guide the optimal screen size of the selected video It includes a control unit to include.

On the other hand, the image display device according to another embodiment of the present invention includes a storage unit for storing a program for executing the video display method and a control unit for executing the program stored in the storage unit.

The video display method may be implemented as a computer-readable recording medium recording a program for execution on a computer.

According to an exemplary embodiment of the present invention, an optimal screen size may be provided according to a resolution of a video played when a video is played in full screen in the video display device. Accordingly, the video can be watched in the optimal picture quality during video playback.

1 is a diagram schematically showing an embodiment of a configuration of a broadcast system.
2 is a diagram illustrating another embodiment of the configuration of a broadcast system.
3 is a diagram illustrating an embodiment of a method of transmitting and receiving data between a video display device and a service provider.
4 is a block diagram illustrating a configuration of a video display device according to an embodiment of the present invention.
5 is a block diagram illustrating a configuration of a video display device according to another embodiment of the present invention.
6 is a diagram illustrating embodiments of a platform structure of a video display device.
7 is a flowchart illustrating an embodiment of a video display method according to the present invention.
8 and 9 are diagrams illustrating an example in which a screen size is adjusted when a video is played in the video display device according to the present invention.

Hereinafter, a network service providing method and an image display device using the same according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The video display device according to the embodiment of the present invention is, for example, an intelligent video display device in which a computer support function is added to a broadcast reception function. It can be equipped with a more convenient interface such as a touch screen or a spatial remote controller. In addition, by being connected to the Internet and a computer with the support of a wired or wireless Internet function, it is possible to perform functions such as e-mail, web browsing, banking or gaming. A standardized general-purpose OS can be used for these various functions.

Therefore, the video display device described in the present invention can be freely added or deleted, for example, on a general-purpose OS kernel, so that various user-friendly functions can be performed. More specifically, the video display device may be, for example, a network TV, an HBBTV, a smart TV, or the like, and may be applied to a smartphone in some cases.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG.

As used herein, terms used in the present invention are selected from general terms that are widely used in the present invention while taking into account the functions of the present invention, but these may vary depending on the intention or custom of a person skilled in the art or the emergence of new technologies. In addition, in certain cases, there is a term arbitrarily selected by the applicant, and in this case, the meaning will be described in the corresponding description of the invention. Therefore, it is intended that the terminology used herein should be interpreted based on the meaning of the term rather than on the name of the term, and on the entire contents of the specification.

1 is a diagram illustrating an embodiment of a configuration of a broadcast system, and schematically illustrates an example of an entire broadcast system including a video display device according to an embodiment of the present invention.

Referring to FIG. 1, a broadcast system includes a content provider (CP) 10, a service provider (SP) 20, a network provider (NP) 30, and an HNED 40. Can be distinguished.

The HNED 40 may correspond to a client 100 which is a video display device according to an embodiment of the present invention. For example, the client 100 may be a network TV, a smart TV, an IPTV, or the like.

On the other hand, the content provider 10 produces and provides a variety of content, as shown in Figure 1 terrestrial broadcaster (terrestrial broadcaster), cable broadcaster (cable SO (System Operator) or MSO (Multiple System Operator), Satellite broadcasters, Internet broadcasters, and the like.

In addition to the broadcast content, the content provider 10 may provide various applications. In this regard, it will be described later in more detail.

The service provider 20 may provide a service package of contents provided by the content provider 10. For example, the service provider 20 may package and provide a first terrestrial broadcast, a second terrestrial broadcast, a cable MSO, satellite broadcast, various internet broadcasts, applications, and the like to a user.

Meanwhile, the service provider 20 may provide a service to the client 100 using a unicast or multicast scheme.

The unicast method transmits data 1: 1 between one sender and one receiver. For example, in the unicast method, when a receiver requests data from a server, the server receives the data according to the request. Can be sent to.

The multicast scheme transmits data to a plurality of receivers of a specific group. For example, the server may transmit data to a plurality of receivers registered in advance. For such multicast registration, the Internet Group Management Protocol (IGMP) protocol may be used.

The network provider 30 may provide a network for providing the above services to the client 100, and the client 100 may receive a service by establishing a home network end user (HNED). It may be.

As a means for protecting the content transmitted in such a system, conditional access or content protection may be used. As one example for the restriction reception or content protection, a scheme such as a cable card or a downloadable conditional access system (DCAS) may be used.

Meanwhile, the client 100 may also provide content through a network. In this case, the client 100 may be a content provider, and the content provider 10 may receive content from the client 100. . Accordingly, an interactive content service or a data service may be possible.

According to an embodiment of the present invention, the content provider 10 may provide a network service such as a social network site (SNS), a blog, a micro blog or an instant massenger. Can be.

For example, the content provider 10 providing the SNS service may include a server (not shown) that stores various types of content such as text or uploaded images that a plurality of users make on a social network site (SNS). Can be.

More specifically, the user can check the messages created by the designated plurality of accounts by connecting to the server of the content provider 10 that provides the SNS service using an image display device and designating the desired accounts.

In addition, when a user requests the SNS service, the video display device, which is the client 100, accesses a server of the content provider 10 to receive messages of the designated accounts, and the received message is recorded in the order in which the corresponding message is written. According to the order, for example, it can be displayed arranged in the upper direction to the lower direction.

Referring to FIG. 2, the video display device 100 corresponding to the client illustrated in FIG. 1 may be connected to a broadcast network and an internet network.

For example, the video display device 100 may include a broadcast interface 101, a section filter 102, an AIT filter 103, an application data processor 104, a broadcast data processor 105, a media player 106, and the Internet. It may include a protocol processor 107, an internet interface 108, and a runtime module 109.

Meanwhile, the broadcast interface 101 of the video display device 100 may receive application information table (AIT) data, real-time broadcast content, application data, or stream event. / V Content).

The section filter 102 performs section filtering on the four data received through the broadcast interface 101 to transmit the AIT data to the AIT filter 103, and the linear AV transmits the content to the broadcast data processing unit 105. The stream event and the application data may be transmitted to the application data processor 104.

The internet interface 108 may receive Non-Linear A / V Content and application data. For example, the Non-Linear Ave content may be a Content On Demand (COD) application.

Meanwhile, the non-linear AV content may be transmitted to the media player 106, and the application data may be transmitted to the runtime module 109.

In addition, the runtime module 109 may include an application manager and a browser, the application manager may control the life cycle for the interactive application using the AIT data, the browser to display and process the interactive application Function can be performed.

FIG. 3 illustrates an embodiment of a data transmission / reception method between an image display device and a service provider.

Referring to FIG. 3, the service provider performs a service provider discovery operation (S301). The video display device transmits a Service Provider Attachment Request signal (S302). When the SP connection is completed, the video display device receives provisioning information (S303). Furthermore, the video display device receives a master SI table from the service provider (S304), receives a Virtual Chnnanel Map table (S305), receives a Virtual Channel Description table (S306), and receives a Source table ( S307).

For example, the service provider discovery may refer to a process in which service providers providing services related to IPTV find a server providing information on their services.

There are three methods for finding an address list that can receive information (eg, SP discovery information) about an SD (Service Discovery) server. First, an address set in the image display device or an address set by a user's manual operation may be used. Second, a DHCP based SP discovery method may be used. Third, the DNS SRV-based SP discovery method may be used.

In addition, the video display device accesses the server of the address obtained by any one of the above three methods, receives a service provider discovery record containing information required for service discovery for each SP, and uses the service discovery step. You can proceed. On the other hand, the above process may be possible in both push mode or pull mode.

Meanwhile, the video display device may access a SP attachment server designated as an SP attachment locator of an SP discovery record and perform a registration procedure (or service attachment procedure).

The video display device may perform a separate authentication procedure by accessing an authentication service server of an SP designated as the SP authentication locator and then perform a service authentication procedure.

After the service attachment procedure is successful, the data transmitted from the server to the video display device may be in the form of provisioning information table.

In the service attachment process, the video display device may provide its ID and location information to the data transmitted to the server, and the service attachment server may specify a service subscribed to by the video display device based on this.

Address information for acquiring service information that the video display device intends to receive may be provided in the form of a provisioning information table. On the other hand, the address information may correspond to the access information of the master SI table, in this case it may be easy to provide a customized service for each subscriber.

The service information includes a master SI table record managing access information and a version of a virtual channel map, a virtual channel map table providing a list of services in a package form, a virtual channel description table including detailed information of each channel, and an actual information. It may include a source table including access information for accessing the service.

4 is a block diagram illustrating a configuration of a video display device according to an embodiment of the present invention.

Referring to FIG. 4, the video display device 100 includes a network interface 111, a TCP / IP manager 112, a service delivery manager 113, Demultiplexer (Demux) 115, PSI & (PSIP and / or SI) decoder 114, Audio Decoder 116, Video Decoder 117, Display A / V and OSD Module 118, Service Control Manager 119, Service Discovery Manager 120, Metadata Manager 122, SI & Metadata DB 121, UI Manager ( 124 and service manager 123.

The network interface 111 may receive packets received from a network and transmit the packets to the network. That is, the network interface 111 may receive a service, content, and the like from a service provider through a network.

The TCP / IP manager 112 may be involved in packet transmission from a source to a destination, which is a packet received by the video display device 100 and a packet transmitted by the video display device 100. The TCP / IP manager 112 classifies the received packet so as to correspond to an appropriate protocol, and sends it to the service delivery manager 115, the service discovery manager 120, the service control manager 119, and the metadata manager 122. The sorted packet can be output.

On the other hand, the service delivery manager 113 is responsible for the control of the received service data, for example, when controlling the real-time streaming (real-time streaming) data may use RTP / RTCP.

When transmitting the real-time streaming data using the RTP, the service delivery manager 113 parses the received data packet according to the RTP and transmits it to the demultiplexer 115 or under the control of the service manager 123. According to the SI & Metadata DB 121 can be stored. In addition, the service delivery manager 113 may feed back the network reception information to a server that provides a service using RTCP.

The demultiplexer 115 demultiplexes the received packet into audio, video, program specific information (PSI) data, and the like, and transmits the demultiplexer 115 to the audio / video decoders 116 and 117 and the PSIP and / or SI decoder. Can be.

The PSIP and / or SI Decoder 114 may decode service information such as program specific information (PSI), for example, a demultiplexed PSI section of the demultiplexer 115, a program and service information protocol (PSIP). ) Section or a service information (SI) section and the like to receive and decode.

In addition, the PSIP and / or SI Decoder 114 may decode the received sections to create a database of service information and store the database of the service information in the SI & Metadata DB 121.

The audio / video decoder 116/117 may decode the video data and the audio data received by the demultiplexer 115, and the decoded audio data and the video data may be provided to the user through the display unit 118. .

Meanwhile, the UI manager 124 and the service manager 123 may manage the overall state of the video display device 100, provide a user interface, and manage other managers.

For example, the UI manager 124 may provide a Graphic User Interface (GUI) for a user using an OSD (On Screen Display), etc., and may receive a key input from a user and perform a receiver operation according to the input. . In addition, when the UI manager 124 receives a key input related to channel selection from the user, the UI manager 124 may transmit the key input signal to the service manager 123.

The service manager 123 may control a manager associated with a service such as a service delivery manager 113, a service discovery manager 120, a service control manager 119, and a metadata manager 122.

In addition, the service manager 123 may create a channel map and select a channel using the channel map according to a key input received from the user interface manager 124.

The service manager 123 may receive the service information of the channel from the PSIP and / or SI Decoder 114, and set the audio / video packet identifier (PID) of the selected channel to the demultiplexer 115.

The service discovery manager 120 may provide information necessary to select a service provider that provides a service. For example, when the service discovery manager 120 receives a signal related to channel selection from the service manager 123, the service discovery manager 120 may find a service using the received signal.

Meanwhile, the service control manager 119 is in charge of selecting and controlling a service. For example, when a user selects a live broadcasting service such as a conventional broadcasting method, the service control manager 119 uses IGMP or RTSP, and video on demand (VOD). In the case of selecting a service such as, the RTSP can be used to select and control the service.

The RTSP protocol may provide a trick mode for real time streaming, and the service control manager 119 initializes a session through the IMC gateway using an IP Multimedia Subsystem (IMS) and a Session Initiation Protocol (SIP). And manage.

The metadata manager 122 may manage metadata associated with a service and store the metadata in the SI & Metadata DB 711.

In addition, the SI & Metadata DB 121 may provide service information decoded by the PSIP and / or SI Decoder 114, metadata managed by the metadata manager 122, and service providers provided by the service discovery manager 120. You can store the information you need to make a selection.

In addition, the SI & Metadata DB 121 may store setup data for the system, and may be embodied as, for example, nonvolatile memory (NVRAM) or flash memory.

Meanwhile, the IG 750 may be a gateway that collects functions necessary for accessing an IMS-based IPTV service.

5 is a block diagram illustrating a configuration of a video display device according to another embodiment of the present invention.

Referring to FIG. 5, the video display device 100 may include a broadcast receiver 130, an external device interface 135, a storage 140, a user input interface 150, a controller 170, and a display 180. ), An audio output unit 185, and a power supply unit 190. Meanwhile, the broadcast receiver 130 may include a tuner 131, a demodulator 132, and a network interface unit 133.

The tuner 131 selects an RF broadcast signal corresponding to a channel selected by a user or all pre-stored channels among radio frequency (RF) broadcast signals received through an antenna, and converts the selected RF broadcast signal into an intermediate frequency signal or a baseband. Can convert to video or audio signal.

For example, the tuner 131 may convert the selected RF broadcast signal into a digital IF signal (DIF) if the selected RF broadcast signal is a digital broadcast signal, and convert it into an analog baseband video or audio signal (CVBS / SIF) if the analog broadcast signal is a digital broadcast signal. .

That is, the tuner 131 may process both a digital broadcast signal or an analog broadcast signal, and the analog baseband video or audio signal CVBS / SIF output from the tuner 131 may be directly input to the controller 170. have.

In addition, the tuner 131 may receive an RF broadcast signal of a single carrier according to an Advanced Television System Committee (ATSC) scheme or an RF broadcast signal of multiple carriers according to a digital video broadcasting (DVB) scheme.

Meanwhile, the tuner 131 may sequentially select RF broadcast signals of all broadcast channels stored through a channel memory function among RF broadcast signals received through an antenna and convert the RF broadcast signals into intermediate frequency signals or baseband video or audio signals. .

The demodulator 132 may perform a demodulation operation by receiving the digital IF signal DIF converted by the tuner 131. For example, when the digital IF signal output from the tuner 131 is an ATSC scheme, the demodulator 132 may perform 8-VSB (8-Vestigal Side Band) demodulation.

In addition, the demodulator 132 may perform channel decoding, and includes a trellis decoder, a de-interleaver, a reed solomon decoder, and the like. Release decoding, deinterleaving, and read solo decoding may be performed.

For example, when the digital IF signal output from the tuner 131 is a DVB scheme, the demodulator 132 may perform coded orthogonal frequency division modulation (COFDMA) demodulation.

In addition, the demodulator 132 may perform channel decoding, and includes a convolution decoder, a deinterleaver, a reed-soloman decoder, and the like for convolutional decoding, deinterleaving, and reed soloman decoding. Can be done.

The demodulator 132 may output a stream signal TS after demodulation and channel decoding, and the stream signal may be a signal multiplexed with a video signal, an audio signal, or a data signal.

For example, the stream signal may be an MPEG-2 Transport Stream (TS) multiplexed with an MPEG-2 standard video signal, a Dolby AC-3 standard audio signal, and the like. In detail, the MPEG-2 TS may include a header of 4 bytes and a payload of 184 bytes.

Meanwhile, the demodulator 132 may separately include the ATSC demodulator and the DVB demodulator according to the ATSC scheme and the DVB scheme.

The stream signal output from the demodulator 132 may be input to the controller 170. The controller 170 outputs an image to the display unit 180 after performing demultiplexing, image / audio signal processing, and the like. The voice may be output to the audio output unit 185.

The external device interface unit 135 may connect the external device to the image display device 100, and may include an A / V input / output unit (not shown) or a wireless communication unit (not shown).

The external device interface unit 135 may be connected to an external device such as a digital versatile disk (DVD), a Blu-ray, a game device, a camera, a camcorder, a computer (laptop), or the like by wire / wireless.

In addition, the external device interface unit 135 transmits an externally input image, audio, or data signal to the controller 170 of the video display device 100, and processes the image, processed by the controller 170, The voice or data signal can be output to a connected external device.

The A / V input / output unit may use a USB terminal, a CVBS (Composite Video Banking Sync) terminal, a component terminal, an S-video terminal (analog), and a DVI to input video and audio signals of an external device to the video display device 100. (Digital Visual Interface) terminal, HDMI (High Definition Multimedia Interface) terminal, RGB terminal, D-SUB terminal and the like.

The wireless communication unit may perform short range wireless communication with another electronic device. For example, the video display device 100 may include Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, and Digital Living Network Alliance. It can be networked with other electronic devices according to communication standards.

In addition, the external device interface unit 135 may be connected through various set top boxes and at least one of the various terminals described above to perform input / output operations with the set top box.

Meanwhile, the external device interface unit 135 may receive an application or a list of applications in a neighboring external device and transmit the received application or list to the controller 170 or the storage 140.

The network interface unit 133 may provide an interface for connecting the video display device 100 to a wired / wireless network including an internet network. For example, the network interface unit 133 may include an Ethernet terminal for connection with a wired network, and may include a wireless LAN (WLAN), a Wi-Fi, a Wibro, and a Wimax (World). Interoperability for Microwave Access (HSDPA) and High Speed Downlink Packet Access (HSDPA) communication standards can be used to access wireless networks.

Meanwhile, the network interface unit 133 may transmit or receive data with another user or another electronic device through the connected network or another network linked to the connected network.

In addition, some content data stored in the image display device 100 may be transmitted to another user who is registered in advance in the image display device 100 or a user selected from among other electronic devices or the selected electronic device.

The network interface unit 133 may access a predetermined web page through a connected network or another network linked to the connected network. That is, by accessing a predetermined web page through the network, it is possible to send or receive data with the server.

In addition, the network interface unit 133 may receive content or data provided by a content provider or a network operator. That is, the network interface unit 133 may receive content such as a movie, an advertisement, a game, a VOD, a broadcast signal, and related information provided from a content provider or a network provider through a network.

In addition, the network interface unit 133 may receive the update information and the update file of the firmware provided by the network operator, and may transmit data to the Internet or the content provider or the network operator.

The network interface unit 133 may select and receive a desired application from among applications that are open to the public through the network.

The storage 140 may store a program for processing and controlling each signal in the controller 170, and may store a signal, an image, an audio, or a data signal.

In addition, the storage unit 140 may perform a function for temporarily storing an image, audio, or data signal input from the external device interface unit 135 or the network interface unit 133. Information about a broadcast channel may be stored.

The storage unit 140 may store an application or a list of applications input from the external device interface unit 135 or the network interface unit 133.

The storage unit 140 may be, for example, a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, an SD or XD memory). Etc.), RAM, and ROM (EEPROM, etc.) may include at least one type of storage medium.

The video display device 100 may provide a user with a content file (video file, still image file, music file, document file, application file, etc.) stored in the storage 140.

The user input interface unit 150 may transmit a signal input by the user to the controller 170, or may transmit a signal from the controller 170 to the user. For example, the user input interface unit 150 may power on / off, select a channel, and set a screen from the remote control apparatus 200 according to various communication methods such as a radio frequency (RF) communication method or an infrared (IR) communication method. The control signal may be received and processed, or the control signal from the controller 170 may be transmitted to the remote controller 200.

In addition, the user input interface unit 150 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 170.

For example, the user input interface unit 150 transmits a control signal input from a sensing unit (not shown) that senses a user's gesture to the controller 170 or transmits a signal from the controller 170 to the sensing unit (not shown). Can be sent. The sensing unit (not shown) may include a touch sensor, a voice sensor, a position sensor, an operation sensor, and the like.

The controller 170 demultiplexes the stream input from the tuner 131 or the demodulator 132 or the external device interface unit 135, or processes the demultiplexed signals to generate a signal for video or audio output. You can print

The image signal processed by the controller 170 may be input to the display unit 180 and displayed as an image corresponding to the image signal. The video signal processed by the controller 170 may be input to the external output device through the external device interface 135. [

The audio signal processed by the control unit 170 may be output to the audio output unit 185 through audio. In addition, the voice signal processed by the controller 170 may be input to the external output device through the external device interface unit 135.

Although not shown in FIG. 6, the controller 170 may include a demultiplexer, an image processor, and the like. This will be described later with reference to FIG. 10.

In addition, the controller 170 may control overall operations of the video display device 100. For example, the controller 170 may control the tuner 131 so as to select an RF broadcast corresponding to a channel selected by a user or a pre-stored channel.

In addition, the controller 170 may control the image display device 100 by a user command or an internal program input through the user input interface unit 150, and access the network to display an application or a list of applications desired by the user. The display device 100 may be downloaded into the display device 100.

For example, the controller 170 controls the tuner 131 so that a signal of a selected channel is input according to a predetermined channel selection command received through the user input interface unit 150, and an image, audio or data signal of the selected channel. Can be processed.

The controller 170 may output the channel information selected by the user together with the processed video or audio signal through the display unit 180 or the audio output unit 185.

In addition, the controller 170 may output an external device input through the external device interface unit 135, for example, from a camera or a camcorder, according to an external device image playback command received through the user input interface unit 150. The video signal or the audio signal may be output through the display unit 180 or the audio output unit 185.

Meanwhile, the controller 170 may control the display unit 180 to display an image, for example, a broadcast image input through the tuner 131 or an external input input through the external device interface 135. An image, an image input through a network interface unit, or an image stored in the storage 140 may be controlled to be displayed on the display unit 180. In this case, the image displayed on the display unit 180 may be a still image or a video, and may be a 2D image or a 3D image.

In addition, the controller 170 may control the content stored in the video display device 100, the received broadcast content, or the external input content input from the outside to be reproduced, and the content may be a broadcast image, an external input image, or audio. It may be in various forms such as a file, a still image, a connected web screen, and a document file.

The controller 170 may control to display the home screen on the display 180 according to a movement input to the home screen.

The home screen may include a plurality of card objects classified by content sources. The card object is a card object representing a thumbnail list of broadcast channels, a card object representing a broadcast guide list, a card object representing a broadcast reservation list or a recording list, a media list in the video display device or in a device connected to the video display device. It may include at least one of the card object representing. The card object may further include at least one of a card object representing a list of connected external devices and a card object representing a list related to a call.

In addition, the home screen may further include an application menu including at least one executable application item.

On the other hand, when there is a card object movement input, the controller 170 may move the card object to display it, or control to display the card object not displayed on the display unit 180 on the display unit 180.

When a predetermined card object is selected from among a plurality of card objects in the home screen, the controller 170 may control to display an image corresponding to the corresponding card object on the display unit 180.

The controller 170 may control to display the received broadcast image and the object representing the broadcast image related information in the card object displaying the broadcast image. The broadcast video may be controlled to have its size fixed by setting a lock.

In addition, the controller 170 may control to display a setup object for setting at least one of a video setting, an audio setting, a screen setting, a reservation setting, a pointer setting of a remote control device, and a network setting in a video display device on a home screen. In addition, an object for a login, a help, or an exit item may be displayed in one region of the home screen.

Meanwhile, the controller 170 may control to display an object indicating the number of all card objects or the number of card objects displayed on the display unit 180 among all the card objects in one area of the home screen.

If a card object name within a predetermined card object is selected among the card objects displayed on the display unit 180, the controller 170 may control to display the corresponding card object on the display unit 180 as a full screen.

When the incoming call is received from the connected external device or the video display device, the controller 170 focuses and displays a call-related card object among a plurality of card objects, or moves and displays the call-related card object in the display unit 180. Can be controlled.

Meanwhile, when entering the application view item, the controller 170 may control to display an application or a list of applications that can be downloaded from the video display device 100 or from an external network.

The controller 170 may control to install and run an application downloaded from an external network along with various user interfaces. In addition, by selecting a user, an image related to an executed application may be controlled to be displayed on the display unit 180.

Although not shown in FIG. 5, the image display device 100 may further include a channel browsing processor that generates a thumbnail image corresponding to a channel signal or an external input signal.

The channel browsing processor receives a stream signal TS output from the demodulator 132 or a stream signal output from the external device interface unit 135, extracts an image from the input stream signal, and generates a thumbnail image. Can be.

The generated thumbnail image may be input as it is or encoded to the controller 170, or may be encoded in a stream form and input to the controller 170.

The controller 170 may display a thumbnail list including a plurality of thumbnail images on the display unit 180 by using the input thumbnail image, and the thumbnail images in the thumbnail list may be updated sequentially or simultaneously. Accordingly, the user can easily grasp the contents of the plurality of broadcast channels.

The display unit 180 converts the image signal, the data signal, the OSD signal processed by the controller 170, or the image signal, data signal, etc. received from the external device interface unit 135 into R, G, B signals, respectively. You can generate a signal.

For this purpose, the display unit 180 may use a PDP, an LCD, an OLED, a flexible display, a 3D display, or the like, or may be configured as a touch screen and used as an input device in addition to the output device. It is possible.

The audio output unit 185 may receive a voice signal processed by the controller 170, for example, a stereo signal, a 3.1 channel signal, or a 5.1 channel signal, and output the audio signal. Can be.

The image display device 100 may further include a photographing unit (not shown) for acquiring an image of the user, and the image information obtained by the photographing unit (not shown) may be input to the controller 170. .

In this case, the controller 170 may detect a user's gesture by combining or combining the image photographed from the photographing unit (not shown) or the detected signal from the sensing unit (not shown).

The power supply unit 190 may supply the corresponding power throughout the image display device 100. For example, the power supply unit 190 may be implemented in the form of a system on chip (SOC) and a display unit ( 180 and power may be supplied to the audio output unit 185.

For that purpose, the power supply unit 190 may include a converter (not shown) for converting AC power into DC power, and the luminance may vary when the display unit 180 is implemented as a liquid crystal panel having a plurality of backlight lamps. For dimming driving, an inverter (not shown) capable of PWM operation may be further provided.

The remote control apparatus 200 transmits the user input to the user input interface unit 150. To this end, the remote control apparatus 200 can use Bluetooth, RF (radio frequency) communication, infrared (IR) communication, UWB (Ultra Wideband), ZigBee, or the like.

In addition, the remote control apparatus 200 may receive an image, audio or data signal output from the user input interface unit 150, display it on the remote control apparatus 200, or output audio or vibration.

The video display device 100 described above is a fixed type of ATSC (8-VSB) digital broadcasting, DVB-T (COFDM) digital broadcasting, ISDB-T (BST-OFDM) digital broadcasting, and the like. It may be a digital broadcast receiver capable of receiving at least one.

On the other hand, since the image display device 100 shown in FIG. 5 is only one embodiment of the present invention. Some of the illustrated components may be integrated, added, or omitted according to the specifications of the image display device 100 that is actually implemented.

That is, two or more constituent elements may be combined into one constituent element, or one constituent element may be constituted by two or more constituent elements, if necessary. In addition, the functions performed in each block are intended to illustrate the embodiments of the present invention, and the specific operations and apparatuses do not limit the scope of the present invention.

According to another exemplary embodiment of the present invention, the image display device 100 does not include the tuner 131 and the demodulator 132, as shown in FIG. 5, and the network interface unit 133 or the external device interface. The video may be received and reproduced through the unit 135.

For example, the video display device 100 may be divided into an image processing apparatus such as a set-top box, etc., for receiving broadcast signals or contents according to various network services, and a content reproduction apparatus for playing contents input from the image processing apparatus. Can be implemented.

In this case, the network service providing method according to an embodiment of the present invention will be described below, as well as the image display device 100 as described with reference to FIG. 180 may be performed by any one of the content reproduction device including the audio output unit 185.

6 illustrates embodiments of a platform structure of an image display device. The platform of the image display device 100 may include OS-based software to perform various operations as described above.

Referring to FIG. 6A, the platform of the video display device 100 is a detachable platform, and the legacy system platform 400 and the smart system platform 405 may be separated and designed.

The OS kernel 410 may be commonly used in the legacy system platform 400 and the smart system platform 405, and the legacy system platform 400 may be a driver 420 on the OS kernel 410. , Middleware 430, and application layer 450.

The smart system platform 405 may include a library 435, a framework 440, and an application layer 455 on the OS kernel 410.

The OS kernel 410 is a core of an operating system. The OS kernel 410 is a hardware operating system for driving the video display device 100, security of hardware and processors in the video display device, efficient management of system resources, memory management, and hardware abstraction. By providing an interface to hardware, multi-process, schedule management and power management according to the multi-process.

For example, the hardware driver in the OS kernel 410 may include at least one of a display driver, a WiFi driver, a Bluetooth driver, a USB driver, an audio driver, a power manager, a binder driver, a memory driver, and the like. can do.

In addition, the hardware driver in the OS kernel 410 is a driver for a hardware device in the OS kernel 410. The hardware driver includes a character device driver, a block device driver, and a network device driver. It can be provided.

Meanwhile, the block device driver may include a buffer to store as much as the unit size as data is transmitted in a specific block unit, and the character device driver includes a buffer as described above as it is transmitted in a basic data unit or character unit. You can't.

The OS kernel 410 may be implemented as a kernel based on various operating systems (OS), such as Unix-based (Linux) and Windows-based, and as an open OS kernel, may be general-purpose usable in other electronic devices.

The driver 420 may be located between the OS kernel 410 and the middleware 430 and may drive a device for the operation of the application layer 450 together with the middleware 430.

For example, the driver 420 may include a micom, a display module, a graphics processing unit (GPU), a frame rate converter (FRC), a general purpose input / output pin (GPIO), and an HDMI in the video display device 100. It may include a driver, such as SDEC (System Decoder or Demultiplexer), VDEC (Video Decoder), ADEC (Audio Decoder), PVR (Personal Video Recorder) or I2C (Inter-Integrated Circuit). The drivers as described above may operate in conjunction with hardware drivers in the OS kernel 410.

In addition, the driver 420 may further include a driver of the remote controller 200, for example, a spatial remote controller, and the driver of the spatial remote controller may be installed in the OS kernel 410 or the middleware 430 in addition to the driver 420. It may be provided in various ways.

The middleware 430 may be located between the OS kernel 410 and the application layer 450, and may serve as a medium for exchanging data between different hardware or software, thereby providing a standardized interface. Various environmental supports and systems can be interoperable with other tasks.

For example, the middleware 430 in the legacy system platform 400 may include middleware of multimedia and hypermedia information coding expert groups (MHEG) and advanced common application platform (ACAP), which are data broadcasting related middleware, and broadcast information related middleware. PSNA or SI middleware, and DLNA middleware which is a peripheral communication related middleware.

Meanwhile, the application layer 450 on the middleware 430, that is, the application 450 layer in the legacy system platform 400 may include a user interface application related to various menus in the image display device 100. have.

The application layer 450 on the middleware 430 may be editable by a user's selection and may be updated through a network. By using the application layer 450, it may be possible to enter a desired menu among various user interfaces according to an input of a remote controller while watching a broadcast image.

In addition, the application layer 450 in the legacy system platform 400 may further include at least one of a TV guide application, a Bluetooth application, a reservation application, a digital video recorder (DVR) application, and a hotkey application. have.

Meanwhile, the library 435 in the smart system platform 405 is located between the OS kernel 410 and the framework 440, and may form the basis of the framework 440. For example, the library 435 may be a media such as SSL (Secure Socket Layer) which is a security library, WebKit (WebKit), a libc (c library), a video format and an audio format, which are web engine related libraries. It may include a media framework, such as a related library, and may be written based on C or C ++ and exposed to the developer through the framework 440.

The library 435 may include a runtime 437 having a core java library and a virtual machine (VM), wherein the runtime 437 is framed with the library 435. The base of the work 440 may be formed.

The virtual machine VM may be a plurality of instances, that is, a virtual machine capable of performing multitasking. Meanwhile, each virtual machine (VM) may be allocated and executed according to each application in the application layer 455. In this case, a binder in the OS kernel 410 may be used for scheduling or interconnection among a plurality of instances. The driver (not shown) may operate.

The binder driver and the runtime 437 may connect a Java-based application and a C-based library, and the library 435 and the runtime 437 may correspond to middleware of a legacy system.

Meanwhile, the framework 440 in the smart system platform 405 includes a program on which the application in the application layer 455 is based. The framework 440 may be compatible with any application and may reuse, move, or exchange components.

The framework 440 may include a support program, a program for binding other software components, and the like. For example, a resource manager, an activity manager related to an activity of an application, and a notification manager manager, a content provider that summarizes sharing information between applications, and the like.

The application layer 455 on the framework 440 includes various programs that can be driven and displayed in the video display device 100, and include, for example, email, short message service (SMS), and calendar. It may include a core application including at least one of a calendar, a map, a browser, and the like.

Meanwhile, the framework 440 or the application layer 450 as described above may be written based on JAVA.

In addition, the application layer 455 may be divided into an application 465 that is stored in the image display device 100 and cannot be deleted by a user, and an application 475 that is downloaded and stored through an external device or a network and is free to install or delete. Can be.

Through applications in the application layer 455, Internet telephony services, network-on-demand (VOD) services, web album services, social networking services (SNS), location-based services (LBS), map services, web search services, An application search service may be performed. In addition, various functions such as a game and schedule management may be performed.

As illustrated in FIG. 6B, the platform of the video display device 100 is an integrated platform, including an OS kernel 510, a driver 520, middleware 530, and the like. It may include a framework 540 and an application layer 550.

The platform shown in (b) of FIG. 6 differs in that the library 435 is omitted and the application layer 550 is provided as an integrated layer, as compared with that shown in FIG. 6 (a). In addition, the driver 520 and the framework 540 may be identical.

6A and 6B, the platform illustrated in FIGS. 6A and 6B may be used not only for the video display device 100 but also for various electronic devices. The storage unit 140 or the control unit 170 shown in FIG. Or may be stored or loaded in a separate processor (not shown).

Alternatively, the platform may be stored or mounted in the SI & metadata DB 711, the UI manager 714, and the service manager 713 shown in FIG. 4, and a separate application processor (not shown) for executing the application. May be further provided.

On the other hand, the video display method according to an embodiment of the present invention described in detail below may be implemented as a program for running on a computer.

In addition, the program is produced in the form of the application described above is stored in the storage unit 140 of the image display device 100, the control unit 170 executes the application stored in the storage unit 140 of the present invention A video display method according to an embodiment may be performed.

In this case, the application for executing the video display method according to an embodiment of the present invention is stored in the storage 140 by the manufacturer before the sale of the video display device 100, or downloaded and stored by the user after sale It may be.

Hereinafter, a video display method according to the present invention will be described with reference to FIGS. 7 to 9. 7 is a flowchart illustrating an embodiment of a video display method according to the present invention. 8 and 9 are diagrams illustrating an example in which a screen size is adjusted when a video is played in the video display device according to the present invention.

First, referring to FIG. 7, a video selection command is received through the user interface 150 (S710). Thereafter, the controller 170 analyzes the resolution of the selected video through the video selection command (S720). The resolution information of the video can be read in a header of data streaming of the video.

The optimum screen size is calculated during video playback according to the resolution of the video analyzed in step S720 (S730). The optimum screen size may be calculated by the controller 170 according to the resolution of the input video, and the optimized surface size information according to the resolution of the video may be pre-stored in the storage 140.

After that, when the control unit 170 receives a playback command for the selected video from the user interface unit 150 (S740), whether the optimized surface size of the video according to the resolution of the video is the same as the full screen size. Determine (S750).

As a result of the determination in step S750, when the optimized surface size of the video according to the resolution of the video is not the same as the full screen size, the display unit 180 displays a message for guiding the optimal screen size of the selected video. (S760). Referring to FIG. 8, when a play command of the selected video is received, a full screen 810 for playing the video is displayed on the display unit 180. A guide message 820 is displayed with the indication that degradation may occur.

Subsequently, as shown in FIG. 8, when the optimum size conversion menu 841, which is one of the screen change request menus, is selected, as shown in FIG. 9, the control unit 170 displays the selected video at the optimal screen size. Control to play on the screen 830 (S770).

Accordingly, the user can watch the video without deteriorating the image quality on the screen of the optimal size according to the resolution of the selected video without any additional manipulation.

On the other hand, when the selected video is being played on the optimum size screen 830, when the controller 170 receives a screen change request command (S780), the playback screen is displayed at a screen size corresponding to the screen change request command. Can be changed.

That is, as shown in FIG. 9, when the screen change request command is a full screen request command through the selection of the full screen menu 842, the video may be converted to a full screen and played.

In addition, when the screen change request command is a full screen request command through the selection of the full screen menu 842, the video may be converted from the optimal size screen 830 to the full screen 820 and played.

In addition, when the screen change request command is a zoom in / out request command through the selection of the zoom in / out menu 843, the video is converted into a screen in which the optimum size screen 830 is enlarged or reduced by a predetermined size and played. Can be.

On the other hand, if it is determined in operation S750 that the optimized screen size of the video according to the resolution of the video is equal to the full screen size, the selected video is played on the full screen 810 shown in FIG. 8 (S761).

In the above-described video display device according to the present invention, a video display method may be produced as a program for execution on a computer and stored in a computer-readable recording medium. Examples of the computer-readable recording medium may include ROM, RAM, CD-ROMs, magnetic tapes, floppy disks, optical data storage devices, and the like, and also include those implemented in the form of carrier waves (eg, transmission over the Internet).

The computer readable recording medium can be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion. In addition, functional programs, codes, and code segments for implementing the method can be easily inferred by programmers in the art to which the present invention belongs.

In addition, although the preferred embodiment of the present invention has been shown and described above, the present invention is not limited to the specific embodiments described above, but the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

Claims

In the method for displaying a video on a video display device,
Selecting a specific video and analyzing a resolution of the selected video;
Calculating an optimal screen size of the selected video according to the analyzed resolution; And
And displaying a message for guiding an optimal screen size of the selected video when receiving a play command of the selected video.

The method of claim 1,
When receiving a screen change request command for the selected video,
And changing and reproducing the selected video to a screen size corresponding to the screen change request command.

The method of claim 2,
If the screen change request command is an optimization plane change request command,
And changing and playing the selected video into the optimal screen size.

The resolution analysis result of claim 1,
If the optimal screen size of the selected video is full screen,
The video display method of the video display device further comprising the step of playing the selected video on the full screen.

The method of claim 2, wherein when the screen change request command is a zoom in / out request command,
And displaying the selected video in a screen size corresponding to the zoom in / out request command.

The method of claim 2, wherein when the screen change request command is a full screen request command,
And displaying the selected video on the full screen according to the full screen request command.

A user interface to receive a predetermined user input;
A display unit displaying a video playback screen; And
When a specific video is selected, the resolution of the selected video is analyzed, an optimal screen size of the selected video is calculated according to the analyzed resolution, and the playback command of the selected video is received from the user interface unit. And a controller for controlling a display to display a message for guiding an optimal screen size of a video on the display unit.

8. The apparatus of claim 7, wherein the control unit
And receiving a screen change request command for the selected video, and controlling to play the selected video by changing the screen to a screen size corresponding to the screen change request command.

The method of claim 8, wherein the control unit
And when the screen change request command is an optimization screen change request command, controls to play the selected video by changing the selected video to the optimum screen size.

8. The apparatus of claim 7, wherein the control unit
And when the optimal screen size of the selected video is full screen, as a result of resolution analysis of the selected video, controlling to play the selected video on the full screen.

The method of claim 8, wherein the control unit
And when the screen change request command is a zoom in / out request command, controls to play the selected video by changing to a screen size corresponding to the zoom in / out request command.

The method of claim 8, wherein the control unit
If the screen change request command is a full screen request command,
And controlling the selected video to be played in a full screen according to the full screen request command.

In a video display device,
A storage unit for storing a program for executing the method according to any one of claims 1 to 6; And
And a controller for executing a program stored in the storage unit.

A computer-readable recording medium having recorded thereon a program for executing the method according to any one of claims 1 to 6.