KR20110088220A - Apparatus for displaying image and method for operating the same - Google Patents

Abstract

PURPOSE: A method for operating an image display device is provided to create 3D image list from one or more external signal and display the 3D image list. CONSTITUTION: If a 3D video signal is detected within a broadcast signal, an image display device creates 3D image list(S610,S615). If there exists an input for additional detection of an external device, the image display device detects a 3D video signal within the external input signal(S625,S630). The image display device creates a 3D image list based on the detected 3D image signal(S635). The image display device displays the 3D image list(S640).

Description

Apparatus for displaying image and method for operating the same}

The present invention relates to an operation method of an image display apparatus, and more particularly, to an image display apparatus or an image display method capable of easily grasping a 3D image list.

The image display device is a device having a function of displaying an image that a user can watch. The user can watch the broadcast through the image display device. A video display device displays a broadcast selected by a user among broadcast signals transmitted from a broadcast station on a display. Currently, broadcasting is shifting from analog broadcasting to digital broadcasting worldwide.

Digital broadcasting refers to broadcasting for transmitting digital video and audio signals. Digital broadcasting is more resistant to external noise than analog broadcasting, so it has less data loss, is advantageous for error correction, has a higher resolution, and provides a clearer picture. In addition, unlike analog broadcasting, digital broadcasting is capable of bidirectional services.

Recently, various studies on stereoscopic images have been conducted, and stereoscopic imaging techniques are becoming more and more common and practical in computer graphics as well as in various other environments and technologies.

SUMMARY OF THE INVENTION An object of the present invention is to provide an image display apparatus and a method of operating the same, which can easily grasp a 3D image list.

According to another aspect of the present invention, there is provided a method of operating an image display device, including detecting whether a 3D image signal is included in at least one of a received broadcast signal and an external input signal from an external device, and Generating a 3D video list based on the 3D video signal, and displaying the 3D video list.

In addition, the video display device according to an embodiment of the present invention for achieving the above object, a tuner for receiving a broadcast signal corresponding to the selected broadcast channel or a pre-stored broadcast channel, and an external device for receiving an external signal from an external device An interface unit, a control unit for detecting whether at least one of the broadcast signal and the external input signal includes the 3D video signal, and generating a 3D video list based on the detected 3D video signal, and a display for displaying the 3D video list. do.

According to an exemplary embodiment of the present invention, the 3D video list may be easily generated by generating and displaying the 3D video list from at least one of the received broadcast signal and the external input signal from the external device.

Meanwhile, when generating the 3D image list, the 3D image list may be generated according to the priority and displayed, and thus the list generated according to the user's taste may be provided.

1 is a block diagram illustrating an image display apparatus according to an exemplary embodiment of the present invention.
FIG. 2 is an internal block diagram of the controller of FIG. 1.
FIG. 3 is a diagram referred to describe various examples of a 3D image detection method in the controller of FIG. 1.
FIG. 4 is a diagram illustrating various formats of 3D images output from the formatter of FIG. 2.
FIG. 5 is a diagram referred to describe scaling of a 3D image output from the formatter of FIG. 2.
6 is a flowchart illustrating a method of operating an image display apparatus according to an exemplary embodiment of the present invention.
7 to 13 are views for explaining various examples of the operation method of the image display apparatus of FIG. 6.

Hereinafter, with reference to the drawings will be described the present invention in more detail.

The suffixes "module" and "unit" for components used in the following description are merely given in consideration of ease of preparation of the present specification, and do not impart any particular meaning or role by themselves. Therefore, the "module" and "unit" may be used interchangeably.

1 is a block diagram illustrating an image display apparatus according to an exemplary embodiment of the present invention.

Referring to FIG. 1, the image display apparatus 100 according to an exemplary embodiment of the present invention includes a tuner 110, a demodulator 120, an external device interface unit 130, a network interface unit 135, and a storage unit ( 140, a user input interface unit 150, a controller 170, a display 180, and an audio output unit 185 may be included.

The tuner 110 selects an RF broadcast signal corresponding to a channel selected by a user or all pre-stored channels among RF (Radio Frequency) broadcast signals received through an antenna. Also, the selected RF broadcast signal is converted into an intermediate frequency signal, a baseband image, or a voice signal.

For example, if the selected RF broadcast signal is a digital broadcast signal, it is converted into a digital IF signal (DIF). If the selected RF broadcast signal is an analog broadcast signal, it is converted into an analog baseband image or voice signal (CVBS / SIF). That is, the tuner 110 may process a digital broadcast signal or an analog broadcast signal. The analog baseband video or audio signal CVBS / SIF output from the tuner 110 may be directly input to the controller 170.

Also, the tuner 110 can receive RF carrier signals of a single carrier according to an Advanced Television System Committee (ATSC) scheme or RF carriers of a plurality of carriers according to a DVB (Digital Video Broadcasting) scheme.

Meanwhile, the tuner 110 sequentially selects RF broadcast signals of all broadcast channels stored through a channel memory function among RF broadcast signals received through an antenna and converts them into intermediate frequency signals or baseband video or audio signals. I can convert it.

The demodulator 120 receives the digital IF signal DIF converted by the tuner 110 and performs a demodulation operation.

For example, when the digital IF signal output from the tuner 110 is an ATSC scheme, the demodulator 120 performs 8-VSB (8-Vestigal Side Band) demodulation. Also, the demodulation unit 120 may perform channel decoding. To this end, the demodulator 120 includes a trellis decoder, a de-interleaver, and a reed solomon decoder to perform trellis decoding, deinterleaving, Solomon decoding can be performed.

For example, when the digital IF signal output from the tuner 110 is a DVB scheme, the demodulator 120 performs COFDMA (Coded Orthogonal Frequency Division Modulation) demodulation. Also, the demodulation unit 120 may perform channel decoding. To this end, the demodulator 120 may include a convolutional decoder, a deinterleaver, a reed-soloman decoder, and the like to perform convolutional decoding, deinterleaving, and reed-soloman decoding.

The demodulation unit 120 may perform demodulation and channel decoding, and then output a stream signal TS. In this case, 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 TS (Transport Stream) multiplexed with an MPEG-2 standard video signal, a Dolby AC-3 standard audio signal, or the like. In more detail, the MPEG-2 TS may include a header of 4 bytes and a payload of 184 bytes.

On the other hand, the demodulator 120 described above can be provided separately according to the ATSC system and the DVB system. That is, it can be provided as an ATSC demodulation unit and a DVB demodulation unit.

The stream signal output from the demodulator 120 may be input to the controller 170. After performing demultiplexing, image / audio signal processing, and the like, the controller 170 outputs an image to the display 180 and outputs audio to the audio output unit 185.

The external device interface unit 130 may connect the external device to the image display device 100. To this end, the external device interface unit 130 may include an A / V input / output unit (not shown) or a wireless communication unit (not shown).

The external device interface unit 130 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. The external device interface unit 130 transmits an image, audio or data signal input from the outside to the controller 170 of the image display device 100 through a connected external device. In addition, the controller 170 may output an image, audio, or data signal processed by the controller 170 to a connected external device. To this end, the external device interface unit 130 may 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), and a DVI so that video and audio signals of an external device can be input 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 can perform short-range wireless communication with other electronic devices. The image display device 100 may be connected to other electronic devices and networks according to communication standards such as Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, etc. Can be connected.

In addition, the external device interface unit 130 may be connected through at least one of the various set top boxes and the various terminals described above to perform input / output operations with the set top box.

The network interface unit 135 provides an interface for connecting the image display apparatus 100 to a wired / wireless network including an internet network. The network interface unit 135 may include an Ethernet terminal for connection with a wired network, and for connection with a wireless network, a WLAN (Wi-Fi) or a Wibro (Wireless). Broadband, Wimax (World Interoperability for Microwave Access), High Speed Downlink Packet Access (HSDPA) communication standards, and the like may be used.

The network interface unit 135 may receive content or data provided by the Internet or a content provider or a network operator through a network. That is, content such as a movie, an advertisement, a game, a VOD, a broadcast signal, and related information provided from a content provider may be received through a network. In addition, the update information and the update file of the firmware provided by the network operator can be received. It may also transmit data to the Internet or content provider or network operator.

In addition, the network interface unit 135 is connected to, for example, an Internet Protocol (IP) TV, and receives the video, audio, or data signals processed in the set-top box for the IPTV to enable bidirectional communication. The signal processed by the controller 170 may be transmitted to the set-top box for the IPTV.

Meanwhile, the above-described IPTV may mean ADSL-TV, VDSL-TV, FTTH-TV, etc. according to the type of transmission network, and include TV over DSL, Video over DSL, TV overIP (TVIP), and Broadband TV ( BTV) and the like. In addition, IPTV may also mean an Internet TV capable of accessing the Internet, or a full browsing TV.

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

In addition, the storage unit 140 may perform a function for temporarily storing an image, audio, or data signal input to the external device interface unit 130. In addition, the storage 140 may store information on a predetermined broadcast channel through a channel storage function.

The storage unit 140 may include a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory), It may include at least one type of storage medium such as RAM, ROM (EEPROM, etc.). The image display apparatus 100 may reproduce and provide a file (video file, still image file, music file, document file, etc.) stored in the storage 140 to a user.

1 illustrates an embodiment in which the storage unit 140 is provided separately from the control unit 170, but the scope of the present invention is not limited thereto. The storage 140 may be included in the controller 170.

The user input interface unit 150 transmits a signal input by the user to the control unit 170 or a signal from the control unit 170 to the user.

For example, the user input interface unit 150 may be powered on / off, channel selection, and screen from the remote controller 200 according to various communication methods such as a radio frequency (RF) communication method and an infrared (IR) communication method. A user input signal such as a setting may be received, or a signal from the controller 170 may be transmitted to the remote controller 200.

In addition, for example, the user input interface unit 150 may transmit a user input 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.

In addition, for example, the user input interface unit 150 may transmit a user input signal input from a sensing unit (not shown) that senses a user's gesture to the controller 170 or may transmit a signal from the controller 170. The transmission may be transmitted to a sensing unit (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 controller 170 demultiplexes the input stream or processes the demultiplexed signals through the tuner 110, the demodulator 120, or the external device interface unit 130, and outputs a video or audio signal. You can create and output.

The image signal processed by the controller 170 may be input to the display 180 and displayed as an image corresponding to the image signal. In addition, the image signal processed by the controller 170 may be input to the external output device through the external device interface unit 130.

The voice signal processed by the controller 170 may be sound output to the audio output unit 185. In addition, the voice signal processed by the controller 170 may be input to the external output device through the external device interface unit 130.

Although not shown in FIG. 1, the controller 170 may include a demultiplexer, an image processor, and the like. This will be described later with reference to FIG. 2.

In addition, the controller 170 may control overall operations of the image display apparatus 100. For example, the controller 170 may control the tuner 110 to control the tuner 110 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 apparatus 100 by a user command or an internal program input through the user input interface unit 150.

For example, the controller 170 controls the tuner 110 to input a signal of a selected channel according to a predetermined channel selection command received through the user input interface unit 150. Then, video, audio, or data signals of the selected channel are processed. The controller 170 may output the channel information selected by the user together with the processed video or audio signal through the display 180 or the audio output unit 185.

As another example, the controller 170 may, for example, receive an external device image playback command received through the user input interface unit 150, from an external device input through the external device interface unit 130, for example, a camera or a camcorder. The video signal or the audio signal may be output through the display 180 or the audio output unit 185.

The controller 170 may control the display 180 to display an image. For example, the display 180 may display a broadcast image input through the tuner 110, an external input image input through the external device interface unit 130, an image input through the network interface unit, or an image stored in the storage unit 140. ) Can be displayed.

In this case, the image displayed on the display 180 may be a still image or a video, and may be a 2D image or a 3D image.

Meanwhile, the controller 170 detects whether at least one of the broadcast signal received from the tuner 110 and the external input signal from the external device includes the 3D video signal, and based on the detected 3D video signal, the 3D video. A list can be generated, and a list of 3D images can be displayed. The controller 170 may generate a 2D list in addition to the 3D list.

The external input signal may include an input signal from an external device input through the external device interface unit 130 as well as an input signal from a network input through the network interface unit 135.

Details of the 3D image list and the like will be described later with reference to FIG. 2.

Meanwhile, the controller 170 may generate and display a 3D object with respect to a predetermined object in the image displayed on the display 180. For example, the object may be at least one of a connected web screen (newspaper, magazine, etc.), an EPG (Electronic Program Guide), various menus, widgets, icons, still images, videos, and text.

Meanwhile, the 3D object is processed to have a depth different from that of the image displayed on the display 180. Preferably, the 3D object is processed to protrude relative to an image displayed on the display 180.

The controller 170 recognizes a user's position based on an image photographed by a photographing unit (not shown). For example, the distance (z-axis coordinate) between the user and the image display apparatus 100 may be determined. In addition, the x-axis coordinates and the y-axis coordinates in the image display apparatus 100 corresponding to the user position can be grasped.

On the other hand, although not shown in the figure, it may be further provided with a channel browsing processing unit for generating a thumbnail image corresponding to the channel signal or the external input signal. The channel browsing processor may receive a stream signal TS output from the demodulator 120 or a stream signal output from the external device interface 130, extract a video from the input stream signal, and generate a thumbnail image. Can be. The generated thumbnail image may be input as it is or encoded to the controller 170. In addition, the generated thumbnail image 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 180 by using the input thumbnail image.

The display 180 converts the image signal, the data signal, the OSD signal, or the image signal, the data signal received from the external device interface unit 130, processed by the controller 170 into R, G, and B signals, respectively. Generate a signal.

The display 180 may be a PDP, an LCD, an OLED, a flexible display, or the like, and in particular, according to an embodiment of the present invention, it is preferable that a 3D display is possible.

To this end, the display 180 may be divided into an additional display method and a single display method.

The independent display method may implement a 3D image by the display 180 alone without additional display, for example, glasses, and the like. For example, various methods such as a lenticular method and a parallax barrier may be used. Can be applied.

Meanwhile, the additional display method may implement a 3D image by using an additional display in addition to the display 180. For example, various methods such as a head mounted display (HMD) type and glasses type may be applied. The glasses type may include a polarizing glasses type, a shutter glass type, a spectral filter type, or the like.

The display 180 may be configured as a touch screen and used as an input device in addition to the output device.

The audio output unit 185 receives a signal processed by the controller 170, for example, a stereo signal, a 3.1 channel signal, or a 5.1 channel signal, and outputs a voice signal. The voice output unit 185 may be implemented by various types of speakers.

Meanwhile, in order to detect a gesture of a user, as described above, a sensing unit (not shown) including at least one of a touch sensor, a voice sensor, a position sensor, and a motion sensor may be further provided in the image display apparatus 100. have. The signal detected by the sensing unit (not shown) is transmitted to the controller 170 through the user input interface unit 150.

The controller 170 may detect a gesture of the user by combining or combining the image photographed by the photographing unit (not shown) or the detected signal from the sensing unit (not shown).

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, an audio or a data signal output from the user input interface unit 150, and display or output the audio from the remote control apparatus 200.

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. In addition, as a mobile type, digital broadcasting of terrestrial DMB system, digital broadcasting of satellite DMB system, digital broadcasting of ATSC-M / H system, digital broadcasting of DVB-H system (COFDM system) and media flow link only system It may be a digital broadcast receiver capable of receiving at least one of digital broadcasts. It may also be a digital broadcast receiver for cable, satellite communications, or IPTV.

On the other hand, the video display device described in the present specification is a TV receiver, a mobile phone, a smart phone (notebook computer), a digital broadcasting terminal, PDA (Personal Digital Assistants), PMP (Portable Multimedia Player), etc. May be included.

Meanwhile, a block diagram of the image display apparatus 100 shown in FIG. 1 is a block diagram for an embodiment of the present invention. Each component of the block diagram may be integrated, added, or omitted according to the specifications of the image display apparatus 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.

FIG. 2 is an internal block diagram of the controller of FIG. 1, and FIG. 3 is a diagram for explaining various examples of a 3D image detection method in the controller of FIG. 1, and FIG. 4 is a diagram of a 3D image output from the formatter of FIG. 2. 5 is a diagram illustrating various formats, and FIG. 5 is a diagram referred to describe scaling of a 3D image output from the formatter of FIG. 2.

According to an embodiment of the present invention, the control unit 170 may include a demultiplexer 210, an image processor 220, an OSD generator 240, a mixer 250, a formatter 260, and a 3D image detector 270. The list generating unit 280 may be included. In addition, the apparatus may further include a voice processor (not shown) and a data processor (not shown).

The demultiplexer 210 demultiplexes an input stream. For example, when an MPEG-2 TS is input, it may be demultiplexed and separated into video, audio, and data signals, respectively. Here, the stream signal input to the demultiplexer 210 may be a stream signal output from the tuner 110, the demodulator 120, or the external device interface unit 130.

The image processor 220 may perform image processing of the demultiplexed image signal. To this end, the image processor 220 may include an image decoder 225 and a scaler 235.

The image decoder 225 decodes the demultiplexed image signal, and the scaler 235 performs scaling to output the resolution of the decoded image signal on the display 180.

The video decoder 225 may include decoders of various standards.

For example, when the demultiplexed video signal is an encoded 2D video signal of MPEG-2 standard, it may be decoded by an MPEG-2 decoder.

In addition, for example, when the demultiplexed 2D video signal is a digital video broadcasting (DMB) method or an encoded video signal of H.264 standard according to DVB-H, it may be decoded by an H.264 decoder.

Also, for example, when the demultiplexed video signal is a depth image of MPEC-C part 3, the demultiplexed video signal may be decoded by the MPEC-C decoder. In addition, disparity information may be decoded.

Also, for example, when the demultiplexed video signal is a multi-view video according to MVC (Multi-view Video Coding), it may be decoded by an MVC decoder.

Also, for example, when the demultiplexed video signal is a free view video according to a free-viewpoint TV (FTV), it may be decoded by an FTV decoder.

Meanwhile, the image signal decoded by the image processor 220 may be classified into a case in which only a 2D image signal is present, a case in which a 2D image signal and a 3D image signal are mixed, and a case in which only a 3D image signal is present.

Meanwhile, as described above, the image signal decoded by the image processor 220 may be a 3D image signal having various formats. For example, the image may be a 3D image signal including a color image and a depth image, or may be a 3D image signal including a plurality of view image signals. The plurality of viewpoint image signals may include, for example, a left eye image signal and a right eye image signal.

Here, the format of the 3D video signal is a side by side format (FIG. 4A) in which the left eye video signal L and the right eye video signal R are arranged left and right, as shown in FIG. Frame Sequential format (FIG. 4B), Top / Down format (FIG. 4C) arranged up and down, and Interlaced format that mixes the left eye image signal and the right eye image signal line by line (FIG. 4B). 4d), a checker box format (FIG. 4E) for mixing the left eye image signal and the right eye image signal for each box may be used.

The OSD generator 240 generates an OSD signal according to a user input or itself. For example, a signal for displaying various types of information on a screen of the display 180 as a graphic or text may be generated based on a user input signal. The generated OSD signal may include various data such as a user interface screen, various menu screens, widgets, and icons of the image display apparatus 100. In addition, the generated OSD signal may include a 2D object or a 3D object.

The mixer 250 may mix the OSD signal generated by the OSD generator 240 and the decoded image signal processed by the image processor 220. In this case, the OSD signal and the decoded video signal may each include at least one of a 2D signal and a 3D signal. The mixed signal is provided to the formatter 260.

The formatter 260 may receive a mixed signal from the mixer 250, that is, an OSD signal and a decoded video signal, and separate the 2D video signal and the 3D video signal. The 3D video signal may be separated into video signals of multiple views. For example, it may be separated into a left eye image signal and a right eye image signal.

In this case, the interval between the left eye image signal and the right eye image signal may correspond to the depth of the corresponding 3D image signal. The greater the depth, that is, the more protruding to the user, the narrower the distance between the left eye image signal and the right eye image signal. For example, the spacing can be narrowed and overlapped.

Meanwhile, in the present specification, a 3D video signal means a 3D object, and examples of such an object include a picture in picture (PIP) image (still image or a video), an EPG indicating broadcast program information, various menus, widgets, There may be an icon, text, an object in the image, a person, a background, a web screen (newspaper, magazine, etc.).

In this specification, the depth of the 3D object protruding in the user direction is set to +, and the depth of the 2D image or the 3D image displayed on the display 180 or the display 180 is set to 0. In addition, the depth of the 3D object displayed as if it is located behind the 2D image or the 3D image set to 0 is set to-. The more protruding toward the viewer, the greater the depth of the 3D object.

The formatter 260 may determine whether the formatter 260 is a 3D video signal. Whether the 3D video signal is a 3D video signal refers to a 3D video flag, 3D video metadata, or 3D video format information in a header of a stream indicating that the video signal is a 3D video. Can be judged.

The 3D image flag, the 3D image metadata, or the format information of the 3D image may include location information, area information, or size information of the 3D image in addition to the 3D image information.

Meanwhile, the 3D image flag, the 3D image metadata, or the format information of the 3D image may be demultiplexed by the stream in the demultiplexer 210 and input to the formatter 260.

The formatter 260 may change the format of the 3D image by recombining a 3D image signal having a predetermined format based on the format information of the 3D image. That is, it may be changed to any one of various formats illustrated in FIG. 4.

For example, when the format of the 3D video signal input to the formatter 260 is a side by side format, it is possible to change to a top down format and output the output by a user's selection. Do.

The formatter 260 may convert a 2D video signal into a 3D video signal. For example, an edge or selectable object may be detected within the 2D image signal according to a 3D image generation algorithm, and an object or selectable object according to the detected edge may be separated into a 3D image signal and generated. Can be. In this case, the generated 3D image signal may be separated into a left eye image signal L and a right eye image signal R as described above.

On the other hand, the variable depth of the formatter 260 corresponds to varying the distance (or varying the degree of overlap) of the left eye image and the right eye image of the object. On the other hand, it is also possible to vary the slope. See FIG. 5 for a change in the slope and the like.

The 3D image detector 270 detects whether a 3D image signal is included from the demultiplexed signal by the demultiplexer 210. Whether it is a 3D video signal may be detected with respect to a broadcast signal received from the tuner 110, an external input signal from an external device, or an external input signal received through a network.

Meanwhile, whether the 3D video signal is a 3D video signal includes a 3D video flag, 3D video metadata, or 3D video format information in a header of a stream indicating that the video signal is a 3D video. This can be determined by referring to. This will be described with reference to FIG. 3.

FIG. 3 is a diagram referred to describe various examples of a 3D image detection method in the controller of FIG. 1.

First, FIG. 3 (a) shows a video format of the MPEG-2 standard (ISO 13818-2 standard). Referring to the drawings, a range of "picture start code", "slice start code", and the like is disclosed. Among these, there are portions that are "reserved," and at least one of the portions may include information indicating whether the image is 2D or 3D. In the case of a 3D image, 3D format information (see FIG. 4) may be included. It can also be included in other parts besides FIG.

The 3D image detection unit 270 detects whether or not the 3D image is a 3D image by examining a predetermined "reserved" portion of the MPEG-2 standard image signal as described above, at the time of demultiplexing or after demultiplexing. can do.

Next, Figure 3 (b) shows the header packet standard of HDMI. Referring to the drawings, "HDMI_Video_Format" and the like are disclosed, in particular "3D_structure". This can be used to indicate whether a 2D or 3D image.

Accordingly, the 3D image detection unit 270 may detect whether the external input image is a 3D image by examining “3D_structure” in the header packet standard of the HDMI during or after the demultiplexing.

In addition, in the case of broadcast video, it is possible to determine whether or not it is a 3D video through PSI / PSIP / SI Table Header and Packet Data in Video PES.

In detail, a 1 bit field of whether a 2D image or a 3D image may be utilized in the VCT table constituting virtual information of a corresponding channel of the PSIP, and the 3D image detector 270 may detect whether the image is a 3D image. Can be.

In addition, if the SI has a service number of a corresponding channel, a 1 bit field of whether a 2D video or a 3D video may be utilized in the SDT table constituting the information of the corresponding service, and the 3D video detection unit 270 may use the 3D video. Whether or not it can be detected.

In addition, in the PMT header of the PSI, 3 bits including 1 bit indicating whether 2d / 3d and 2 bits indicating left and right eye (L / R) images may be used, and the 3D image detecting unit 270 may use the 3bit. It can be detected whether or not the 3D image.

Meanwhile, the IPTV received through the network interface unit 135 may utilize a portion that is "reserved" in the MPEG-2 standard, as described above in the description of FIG. 3A, and the 3D image detection unit 270. Through this, it may detect whether or not the 3D image.

The list generator 280 generates a list as detected by the 3D image detector 270. When the external signal or the broadcast signal is a 3D signal, the 3D list is generated by being included in the 3D video list. It is also possible to separately generate a list for each broadcast signal or for each external signal.

Meanwhile, in addition to the 3D video list, it is also possible to generate a 2D video list. Since the 3D image detector 270 may simultaneously perform 2D image detection in addition to the 3D image detection, the 3D image detection unit 270 may generate a 2D image list based on this. The 2D video list may also be separately generated for each broadcast signal or for each external signal.

On the other hand, the list generating unit 280 can also generate a list in which the 3D video list and the 2 video list are mixed.

3D image list generation may be performed by input of a specific key. For example, the user input interface unit 150 receives an input of a specific key (for example, a color key) in the remote control apparatus 200, and accordingly, a list generation unit in the control unit 170 ( In operation 280, the corresponding list may be generated.

The generated list is input to the mixer 250 and displayed on the display via the formatter 260. The formatter 260 may 3D process the generated list to be displayed.

Meanwhile, although the OSD generator 240 and the list generator 280 are separately shown in the drawing, the above-described 3D image list may be generated by the OSD generator 240 without using the list generator.

5 illustrates various ways of scaling of 3D video signals.

As illustrated in FIG. 5A, the 3D image signal or the 3D object 410 in the 3D image signal may be enlarged or reduced 413 as a whole, and as shown in FIG. 5B, the 3D object may be partially enlarged. It may be enlarged or reduced (trapezoidal, 416). In addition, as shown in FIG. 5C, at least a part of the 3D object may be rotated (parallel quadrilateral shape 419). Through such scaling (scaling) or tilting, it is possible to emphasize a 3D effect, that is, a 3D effect, on a 3D image signal or a 3D object in the 3D image signal.

As described above, increasing the slope may increase the difference in the lengths of the parallel sides of the trapezoidal shape 416, as shown in FIG. 5 (b), or increase the rotation angle as shown in FIG. 5 (c). Can mean.

The voice processing unit (not shown) in the controller 170 may perform voice processing of the demultiplexed voice signal. To this end, the voice processing unit (not shown) may include various decoders.

For example, if the demultiplexed speech signal is a coded speech signal, it can be decoded. Specifically, when the demultiplexed speech signal is an encoded speech signal of MPEG-2 standard, it may be decoded by an MPEG-2 decoder. In addition, when the demultiplexed speech signal is an encoded speech signal of MPEG 4 Bit Sliced Arithmetic Coding (BSAC) standard according to the terrestrial digital multimedia broadcasting (DMB) scheme, it may be decoded by an MPEG 4 decoder. In addition, when the demultiplexed speech signal is an encoded audio signal of the AAC (Advanced Audio Codec) standard of MPEG 2 according to the satellite DMB scheme or DVB-H, it may be decoded by the AAC decoder. In addition, when the demultiplexed speech signal is a encoded speech signal of the Dolby AC-3 standard, it may be decoded by the AC-3 decoder.

Also, the voice processing unit (not shown) in the controller 170 may process a base, a treble, a volume control, and the like.

The data processor (not shown) in the controller 170 may perform data processing of the demultiplexed data signal. For example, when the demultiplexed data signal is an encoded data signal, it may be decoded. The encoded data signal may be EPG (Electronic Progtam Guide) information including broadcast information such as a start time and an end time of a broadcast program broadcasted in each channel. For example, the EPG information may be TSC-PSIP (ATSC-Program and System Information Protocol) information in the ATSC scheme, and may include DVB-Service Information (DVB-SI) in the DVB scheme. . The ATSC-PSIP information or the DVB-SI information may be information included in the aforementioned stream, that is, the header (4 bytes) of the MPEG-2 TS.

In FIG. 2, although the signals from the OSD generator 240 and the image processor 220 are mixed in the mixer 250, the formatter 260 performs 3D processing, but the present invention is not limited thereto. It can also be located after the formatter. That is, the output of the image processor 220 is 3D processed by the formatter 260, and the OSD generator 240 performs 3D processing together with OSD generation, and then mixes each processed 3D signal in the mixer 250. It is also possible.

Meanwhile, a block diagram of the controller 170 shown in FIG. 2 is a block diagram for an embodiment of the present invention. Each component of the block diagram may be integrated, added, or omitted according to the specification of the controller 170 that is actually implemented.

6 is a flowchart illustrating a method of operating an image display apparatus according to an exemplary embodiment of the present invention, and FIGS. 7 to 13 are views for explaining various examples of the method of operating the image display apparatus of FIG. 6.

Referring to FIG. 6, first, in a state in which a predetermined image is displayed, it is determined whether there is a 3D channel search input (S605).

The predetermined image may be a broadcast image, an external input image, a stored image, or an image input from a content provider. The image may be a still image or a video, and may be a 2D image or a 3D image.

On the other hand, while the predetermined image is displayed on the display 180, it is determined whether the user input is a 3D channel search input. The channel search input may be, for example, an automatic channel search input. Or it may be a 3D channel search by a separate specific key input. 7 illustrates an automatic channel search input.

Next, if there is a 3D channel search input, it is detected whether the 3D video signal is included in the broadcast signal (S610).

7 exemplarily searches for a 2D channel and a 3D channel according to an automatic channel search. As shown in FIG. 7A, when there is an automatic channel search input in a state where a predetermined broadcast image (DTV 7-1) 710 is displayed, automatic channel search may be performed as shown in FIG. 7B. While the auto channel search screen 720 is displayed, the auto channel search progress screen 730 may be displayed in a popup format.

While performing the automatic channel search, it is possible to detect whether the broadcast signal of the channel includes a 3D video signal or a 2D video signal.

That is, it is possible to receive broadcast signals corresponding to pre-stored channels, and detect whether a 3D video signal is included in the broadcast signal based on a flag, header information, or metadata indicating that the 3D video is included in the received broadcast signal. .

Meanwhile, in FIG. 7B, the number of 3D channels is 5 and the number of 2D channels is 15, among 20 channels in which automatic channel search is performed.

Next, a 3D video list is generated based on the detected 3D video signal (S615).

As described above, the 3D image list may be performed by the list generator 280 in the controller 170. Meanwhile, in addition to the 3D video list, a 2D video list may be generated.

8 illustrates that a list generated after automatic channel search is displayed. The display of the generated list may be performed in operation 640 which will be described later. However, the present invention is not limited thereto and may be displayed immediately after generation of the 3D video list based on the broadcast signal.

FIG. 8 (a) illustrates whether a broadcast image of all the searched channels is 2D or 3D image, and FIG. 8 (b) shows that the 2D image list 820 and the 3D image list 830 are part of the display 180. What is displayed in the area is illustrated.

Unlike the drawing, it is possible to display only the 3D image list 830 according to the input of a specific key. In addition, the 3D video list 830 may be displayed as a 3D object. That is, it may be displayed to have a different depth from the image 810 displayed on the display.

On the other hand, after the automatic channel search of FIG. 7B is finished, the 3D video list may display the previous broadcast video DTV7-1 as shown in FIG. 8B and may be displayed in a partial region thereof. Alternatively, the 3D video list may be displayed in a popup form while the channel search completion screen is displayed.

Next, an object indicating whether the external device is additionally detected is displayed on the display (S620).

9 illustrates whether additional detection of a 3D image in an external device is performed. As shown in FIG. 9A, when the automatic channel search for the broadcast channel is completed, the object 920 indicating whether the automatic channel search is completed and additional detection is displayed in a pop-up form while the automatic channel search screen 910 is displayed. Can be.

On the other hand, it is also possible to perform the automatic detection of the external device, unlike the drawing. For example, when the search priority is from the broadcast video, the search may be automatically performed on the external input video after the search of the broadcast video is completed.

It is determined whether there is an external device additional search input (S625), and if there is a corresponding input, it is detected whether the 3D video signal is included in the external input signal (S630).

By the user's specific input, it is possible to detect whether the 3D video signal is included with respect to the external input signal. In this case, the external input signal may be an external input image signal input through the external device interface unit 130 or the network interface unit 135.

FIG. 9B illustrates searching for an external input image from an external device according to an external device search input. While the automatic channel search screen 910 is displayed, the external device search progress screen 930 may be displayed in a popup format.

While performing the automatic channel search, it is possible to detect whether the broadcast signal of the channel includes a 3D video signal or a 2D video signal.

That is, external input signals received through the external device interface unit 130 or the network interface unit 135 are received, and broadcasted based on a flag, header information, or metadata indicating that the 3D image is included in the received external input signal. It may be detected whether a 3D video signal is included in the signal.

Meanwhile, in FIG. 9B, the number of 3D images and the number of 2D images are 3 among 5 external inputs in which an external device search is performed.

A 3D video list is generated based on the detected 3D video signal (S635), and the generated 3D video list is displayed (S640).

As described above, the 3D image list may be performed by the list generator 280 in the controller 170. Meanwhile, in addition to the 3D video list, a 2D video list may be generated.

10 illustrates that a list generated after the external device search is displayed.

FIG. 10 (a) illustrates whether external input images of all searched external devices are 2D or 3D images, and FIG. 10 (b) shows the 2D image list 1020 and the 3D image list 1030 on the display 180. Illustrates what is displayed in some areas of.

Unlike the drawing, in response to the input of a specific key, only the 3D image list 1030 may be displayed. In addition, the 3D video list 1030 may be displayed as a 3D object. That is, the image may be displayed to have a different depth from the image 1010 displayed on the display.

FIG. 11 illustrates that only the 3D image list 1130 is displayed in a state where a predetermined image 1110 is displayed according to an input of a specific key. The 3D list of FIG. 11 exemplarily includes a 3D video among a broadcast video corresponding to a broadcast channel and an external input video according to an external device. Alternatively, the 3D list may separately display and display a broadcast video or an external input video, respectively. .

On the other hand, when there is a user's up / down key input while the 3D video list is displayed, up / down may be performed in the corresponding list. As a result, the user can continuously select and watch only the 3D image.

In addition, according to the user's up / down key input, ie, rolling an item in the 3D image list, the corresponding image may be displayed as a 3D image.

12 exemplarily sets a search order of a 3D image.

7 to 10 illustrate an example of performing a 3D image search by separately searching an external input image of an external device after an automatic channel search of a broadcast channel, but may set the priority in the order desired by the user.

FIG. 12A illustrates that the item “3D search order setting” item 1215 is included in the automatic channel search screen 1210. When the user selects this item 1215, priority may be set as shown in FIG. 12B.

FIG. 12B illustrates an object 1225 for setting priority for each broadcast type and external input type. In addition, the priority may be changed for each user's preferred channel or preferred external device. According to a recently viewed channel or an external device, or based on the EPG, the highest priority may be automatically assigned to the channel on which the broadcast is started or the channel terminated. Accordingly, the list can be provided according to the user's taste.

13 illustrates displaying a 3D video list on a display through a remote controller.

First, as shown in FIG. 13A, when one of the color keys 1305 in the remote control apparatus 200 is set as a hot key of the 3D video list, the display may be displayed according to the input operation of the corresponding key. The 3D image list 1320 may be displayed in at least one region of the unit 180. In the drawing, the 3D image list 1320 is displayed in one region while the broadcast image (DTV 7-1) 1310 is displayed. In the drawing, the 3D video list 1320 includes only a 3D broadcast in the broadcast channel. However, the present invention is not limited thereto. As described above, the 3D video list 1320 may further include a 3D video list from the external input video.

Meanwhile, when there is an input of an up / down key in the remote controller 200 while the 3D image list 1320 is displayed, an item in the 3D image list 1320 may be moved, and accordingly, on the display 180. The 3D image may be displayed.

Accordingly, the user can easily know the source of the 3D image, and can also simply watch the image.

Next, when there is a numeric key input in the remote control apparatus 200 while the 3D image list 1320 is displayed, as shown in FIG. 13B, the channel list 1330 may be displayed instead of the 3D image list. . That is, the broadcast channel list including the 2D video and the 3D video may be displayed by being released from the 3D video list 1320 display state. In this case, the broadcast channel list may be a recently viewed channel list, a favorite channel list, or a searched channel list for searching for a 3D image as described above.

In the drawing, an example of displaying whether a corresponding channel is a 2D image or a 3D image in a channel list is illustrated. Accordingly, the user can easily determine whether the broadcast is a 2D video or a 3D video.

On the other hand, FIG. 13 (b) shows that the channel list 1330 is immediately displayed without the 3D video list 1320 shown in FIG. 13 (a) when there is an input of a specific key in the remote control apparatus 200. FIG. It is possible.

Meanwhile, when a user selects one of the 3D video lists while the 3D video list is displayed in operation 640, the corresponding video is displayed as a 3D video.

That is, when an input signal, for example, a stream signal, is input to the controller 170, the demultiplexer 210 demultiplexes it. By demultiplexing, the input signal can be separated into a video signal, an audio signal, a data signal, and the like. The image decoder 225 in the image processor 220 decodes the demultiplexed image signal. The decoded video signal is mixed with the output of the OSD generator 240 in the mixer 250, and is again input to the formatter 260. The formatter 260 detects a 3D video signal among the input signals and separates the video signal into multiple view video signals according to the 3D video signal. The multi-view video signal may include, for example, a left eye video signal and a right eye video signal. The signal processed by the formatter 260 is displayed through the display 180.

The image display apparatus and the operation method thereof according to the present invention are not limited to the configuration and method of the embodiments described above, but the embodiments may be applied to all or some of the embodiments May be selectively combined.

Meanwhile, the operation method of the image display apparatus of the present invention can be implemented as a code that can be read by a processor on a recording medium readable by a processor included in the image display apparatus. The processor-readable recording medium includes all kinds of recording devices that store data that can be read by the processor. Examples of the processor-readable recording medium include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like, and may also be implemented in the form of a carrier wave such as transmission over the Internet. . The processor-readable recording medium can also be distributed over network coupled computer systems so that the processor-readable code is stored and executed in a distributed fashion.

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 (18)

Detecting whether a 3D video signal is included in at least one of a received broadcast signal and an external input signal from an external device;
Generating a 3D image list based on the detected 3D image signal; And
Displaying the 3D video list; and operating the image display device. The method of claim 1,
Detecting whether a 2D video signal is included in at least one of a received broadcast signal and an external input signal from an external device; And
And generating a 2D image list based on the detected 2D image signal. The method of claim 1,
The detecting step,
Receiving broadcast signals corresponding to previously stored channels and detecting whether the 3D video signal is included in the broadcast signal based on a flag, header information, or metadata indicating that the 3D video is included in the received broadcast signal;
Receives an external input signal from an external device connected to the image display device, and includes a 3D video signal in the external input signal based on a flag, header information, or metadata indicating that the 3D image is included in the received external input signal. Operating method of an image display apparatus, characterized in that it is detected. The method of claim 1,
The detecting and generating step,
And 3D image search input or automatic channel setting menu. The method of claim 1,
The detecting and generating the list step,
And after detection and list generation are performed based on the broadcast signal, detection and list generation are performed based on an external input signal from the external device. The method of claim 1,
After the detecting and generating of the list is performed based on the broadcast signal, displaying an object indicating whether the external device is additionally detected on the display;
And detecting and generating the list based on an external input signal from a connected external device according to the additional detection input of the external device. The method of claim 2,
And displaying the 2D video list.
And the 3D video list and the 2D video list are displayed in different areas on the display. The method of claim 2,
The 3D video list display step,
And displaying an image list obtained by merging the 3D image list and the 2D image list. The method of claim 1,
The 3D video list display step,
And displaying a list of 3D images from the broadcast channel and a list of 3D images from the external device. The method of claim 1,
The 3D display step,
Operating method of an image display device, characterized in that performed according to the input of a specific key. The method of claim 1,
The detection and list generation step,
And operating according to the priority added to the broadcast channel and the external device. The method of claim 1,
And displaying a 3D image corresponding to the corresponding item as the item is rolled in the 3D image list. The method of claim 1,
The detecting step,
Demultiplexing a broadcast signal or an external input signal; And
And extracting information representing a 3D image from the demultiplexed signals. A tuner for receiving a broadcast signal corresponding to a selected broadcast channel or a pre-stored broadcast channel;
An external device interface unit for receiving an external signal from the external device;
A controller configured to detect whether a 3D video signal is included in at least one of the broadcast signal and the external input signal, and generate a 3D video list based on the detected 3D video signal; And
And a display for displaying the 3D image list. The method of claim 14,
The control unit,
A demultiplexer for demultiplexing at least one of the broadcast signal and the external input signal;
A 3D image detector detecting whether a 3D image signal is included from the demultiplexed signal; And
And a list generator configured to generate a 3D image list based on the detected 3D image signal. The method of claim 14,
The control unit,
And display the 3D video list on the display in response to an input of a specific key. The method of claim 14,
The control unit,
And detecting the 3D video signal and generating a 3D video list based on the detected 3D video signal according to the priority added to the broadcast channel and the external device. 16. The method of claim 15,
The control unit,
An image decoder configured to decode an image signal among the demultiplexed signals; And
And a formatter for extracting a 3D video signal from the decoded video signal and converting the 3D video signal into a multi-view video signal.

Images