KR101730423B1 - Apparatus for displaying image and method for operating the same - Google Patents

Abstract

A method of operating an image display apparatus according to an exemplary embodiment of the present invention includes dividing a screen of a horizontally arranged display into a plurality of regions and displaying a text object in at least one of the plurality of regions And the text object is displayed in a different direction according to the displayed area.
According to the present invention, there is provided an image display apparatus and an operation method thereof, which can improve user convenience by implementing screen layout and screen switching optimized for content use. In particular, the present invention provides an image display apparatus and an operation method thereof that can optimize and display text in various directions.

Description

TECHNICAL FIELD [0001] The present invention relates to an image display apparatus and a method of operating the same,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to an image display apparatus and an operation method thereof, and more particularly, to an image display apparatus and an operation method thereof, in which contents can be used variously and conveniently so that user convenience is improved.

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

Such digital broadcasting transmits digital video and audio signals and provides a clear screen with high data resolution and low error rate compared to analog broadcasting, advantageous for error correction, and high resolution. In addition, with the implementation of digital broadcasting, bidirectional services have become possible.

In addition, according to the tendency that the functions and contents of the video display device are becoming diversified, the optimized screen layout, the screen switching method, the content utilization method and the like have been studied in order to efficiently use various functions and contents of the video display device .

Also. In recent years, various studies on stereoscopic images have been conducted, and stereoscopic image technology has become increasingly common and practical in various other environments and technologies as well as computer graphics.

Accordingly, an object of the present invention is to provide an image display apparatus and an operation method thereof that can improve user convenience by implementing screen layout and screen switching optimized for content use. In particular, the present invention provides an image display apparatus and an operation method thereof that can optimize and display text in various directions.

According to another aspect of the present invention, there is provided a method of operating an image display device including dividing a screen of a horizontally arranged display into a plurality of areas, and displaying a text object on at least one of the plurality of areas And the text object is displayed in a different direction according to the displayed area.

According to another aspect of the present invention, there is provided a method of operating an image display device, the method comprising: sensing location information of a user or a 3D viewing device; displaying a text object based on location information of the user or the 3D viewing device; Determining a position and a direction to be displayed, and displaying the text object on a horizontally arranged display.

According to another aspect of the present invention, there is provided a method of operating a video display device, comprising: determining a position at which a text object is to be displayed; parallel to a side closest to the determined position among four sides of a horizontally- And displaying the text object.

According to the present invention, content, particularly text, can be used in various and convenient ways, so that user convenience can be improved.

1 is an internal block diagram of an image display apparatus according to an embodiment of the present invention.
2 is an internal block diagram of the control unit of FIG.
3 is a diagram illustrating an operation of a 3D viewing apparatus according to a frame sequential format.
4 is a diagram showing an example of a 3D video signal format capable of implementing 3D video.
5 is a diagram illustrating various scaling methods of a 3D image signal according to an exemplary embodiment of the present invention.
FIG. 6 is a view showing a variation in depth of a 3D image or a 3D object according to an embodiment of the present invention.
7 is a view showing a state in which the depth of an image or the like is controlled according to an embodiment of the present invention.
8 is a diagram showing an example of a display arrangement according to an embodiment of the present invention.
9 is a diagram referred to explain the operation method of the 3D viewing apparatus.
10 is a diagram illustrating an image display apparatus and a remote control apparatus according to an embodiment of the present invention.
FIGS. 11A to 13B are views for explaining various examples of the operation method of the image display apparatus according to the embodiment of the present invention.
14 is a diagram referred to explain a method of operating the image display apparatus.
15 to 17 are flowcharts illustrating an operation method of an image display apparatus according to an embodiment of the present invention.
18 to 22 are views for explaining an operation method of the image display apparatus according to an embodiment of the present invention.

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

The suffix "module" and " part "for components used in the following description are given merely for convenience of description, and do not give special significance or role in themselves. Accordingly, the terms "module" and "part" may be used interchangeably.

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

1, an image display apparatus 100 according to an exemplary embodiment of the present invention includes a tuner 110, a demodulator 120, an external device interface 130, a network interface 135, 140, a user input interface unit 150, a sensor unit 160, a controller 170, a display 180, an audio output unit 185, a photographing unit 190, and a 3D viewing device 195 .

The tuner 110 selects a channel selected by the user or an RF broadcast signal corresponding to all previously stored channels among RF (Radio Frequency) broadcast signals received through the 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 can process a digital broadcast signal or an analog broadcast signal. The analog baseband video or audio signal (CVBS / SIF) output from the tuner 110 can 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.

In the present invention, 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 outputs the selected RF broadcast signals as an intermediate frequency signal, a baseband image, or a voice signal Can be converted.

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 the ATSC scheme, the demodulator 120 performs 8-VSB (7-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. For this, the demodulator 120 may include a convolution decoder, a deinterleaver, and a reed-solomon decoder to perform convolutional decoding, deinterleaving, and reed solomon decoding.

The demodulation unit 120 may perform demodulation and channel decoding, and then output a stream signal TS. At this time, the stream signal may be a signal in which a video signal, a voice signal, or a data signal is multiplexed. For example, the stream signal may be an MPEG-2 TS (Transport Stream) multiplexed with an MPEG-2 standard video signal, a Dolby AC-3 standard audio signal, or the like. Specifically, the MPEG-2 TS may include a header of 4 bytes and a payload of 184 bytes.

Meanwhile, the demodulating unit 120 may be separately provided according to the ATSC scheme and the DVB scheme. That is, it can be provided as an ATSC demodulation unit and a DVB demodulation unit.

The stream signal output from the demodulation unit 120 may be input to the controller 170. The control unit 170 performs demultiplexing, video / audio signal processing, and the like, and then outputs an image to the display 180 and outputs audio to the audio output unit 185.

The external device interface unit 130 can transmit or receive data with the connected external device 190. [ 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 can be connected to an external device such as a DVD (Digital Versatile Disk), a Blu ray, a game device, a camera, a camcorder, a computer (notebook) The external device interface unit 130 transmits external video, audio, or data signals to the controller 170 of the video display device 100 through the connected external device. Also, the control unit 170 can output the processed video, audio, or data signal to the 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), a DVI (Digital Visual Interface) terminal, an HDMI (High Definition Multimedia Interface) terminal, an RGB terminal, a D-SUB terminal, and the like.

The wireless communication unit can perform short-range wireless communication with other electronic devices. The image display apparatus 100 is capable of performing communication such as Bluetooth, radio frequency identification (RFID), infrared data association (IrDA), Ultra Wideband (UWB), ZigBee, DLNA (Digital Living Network Alliance) Depending on the standard, it can be networked with other electronic devices.

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

On the other hand, the external device interface unit 130 can transmit and receive data to and from the 3D viewing device 195.

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

The network interface unit 135 can receive, via the network, contents or data provided by the Internet or a content provider or a network operator. That is, it can receive contents and related information such as movies, advertisements, games, VOD, broadcasting signals, etc., provided from the Internet, a content provider, and the like 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 a content provider or network operator.

The network interface unit 135 is connected to, for example, an IP (Internet Protocol) TV and receives the processed video, audio or data signals from the settop box for IPTV to enable bidirectional communication, And can transmit the signals processed by the controller 170 to the IPTV set-top box.

Meanwhile, the IPTV may include ADSL-TV, VDSL-TV, FTTH-TV and the like depending on the type of the transmission network. The IPTV may include a TV over DSL, a video over DSL, a TV over IP 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 unit 140 may store a program for each signal processing and control in the control unit 170 or may store the processed video, audio, or data signals.

In addition, the storage unit 140 may perform a function for temporarily storing video, audio, or data signals input to the external device interface unit 130. [ In addition, the storage unit 140 may store information on a predetermined broadcast channel through a channel memory function such as a channel map.

The storage unit 140 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory) RAM, ROM (EEPROM, etc.), and the like. The image display apparatus 100 can reproduce files (moving picture files, still picture files, music files, document files, etc.) stored in the storage unit 140 and provide them to users.

1 shows an embodiment in which the storage unit 140 is provided separately from the control unit 170, the scope of the present invention is not limited thereto. The storage unit 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 configured to turn on / off the power, select the channel, and display the screen from the remote control device 200 according to various communication methods such as a radio frequency (RF) communication method and an infrared Or transmit a signal from the control unit 170 to the remote control device 200. The remote control device 200 may be connected to the remote control device 200 via a network.

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.

The sensor unit 160 may sense the position of the user or the gesture of the user or the position of the 3D viewing device 195. For this, the sensor unit 160 may include a touch sensor, an audio sensor, a position sensor, a motion sensor, a gyro sensor, and the like.

The position of the sensed user, the gesture of the user, or the position signal of the 3D viewing device 195 may be input to the controller 170. Alternatively, the control unit 170 may be input through the user input interface unit 150, unlike the drawing.

The control unit 170 demultiplexes the input stream or processes the demultiplexed signals through the tuner 110 or the demodulation unit 120 or the external device interface unit 130 to generate a signal for video or audio output Can be generated and output.

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

The audio signal processed by the control unit 170 may be output to the audio output unit 185 as an audio signal. The audio 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.

In addition, the control unit 170 can control the overall operation in the video display device 100. [ For example, the controller 170 controls the tuner 110 to control the tuner 110 to select an RF broadcast corresponding to a channel selected by the user or a previously stored channel.

In addition, the controller 170 may control the image display apparatus 100 according to 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 control unit 170 may output the video or audio signal processed by the user through the display 180 or the audio output unit 185 together with the channel information selected by the user.

The control unit 170 may be connected to the external device interface unit 130 through an external device such as a camera or a camcorder through the external device interface unit 130 in accordance with the external device video playback command received through the user input interface unit 150. [ So that the video signal or the audio signal of the display unit 180 or the audio output unit 185 can be outputted.

Meanwhile, the control unit 170 may control the display 180 to display an image. For example, the broadcast image input through the tuner 110, the external input image input through the external device interface unit 130, the image input through the network interface unit 135, or the image stored in the storage unit 140 To be displayed on the display 180 can be controlled.

At this time, the image displayed on the display 180 may be a still image or a moving image, and may be a 2D image or a 3D image.

On the other hand, the controller 170 generates a 3D object for a predetermined object among the images displayed on the display 180, and displays the 3D object. For example, the object may be at least one of a connected web screen (newspaper, magazine, etc.), EPG (Electronic Program Guide), various menus, widgets, icons, still images, moving images, and text.

Such a 3D object may be processed to have a different depth than the image displayed on the display 180. [ Preferably, the 3D object may be processed to be projected relative to the image displayed on the display 180.

On the other hand, the control unit 170 recognizes the position of the user based on the image photographed by the photographing unit 190. [ For example, the distance (z-axis coordinate) between the user and the image display apparatus 100 can be grasped. In addition, the x-axis coordinate and the y-axis coordinate in the display 180 corresponding to the user position can be grasped.

Although not shown in the drawing, a channel browsing processing unit for generating a channel signal or a thumbnail image corresponding to an external input signal may be further provided. The channel browsing processing unit receives the stream signal TS output from the demodulation unit 120 or the stream signal output from the external device interface unit 130 and extracts an image from an input stream signal to generate a thumbnail image . The generated thumbnail image may be directly or encoded and input to the controller 170. In addition, the generated thumbnail image may be encoded in a stream format and input to the controller 170. The control unit 170 may display a thumbnail list having a plurality of thumbnail images on the display 180 using the input thumbnail image. At this time, the thumbnail list may be displayed in a simple view mode displayed on a partial area in a state where a predetermined image is displayed on the display 180, or in a full viewing mode displayed in most areas of the display 180. The thumbnail images in the thumbnail list can be sequentially updated.

The display 180 converts a video signal, a data signal, an OSD signal, a control signal processed by the control unit 170, a video signal, a data signal, a control signal, and the like received from the external device interface unit 130, .

The display 180 may be a PDP, an LCD, an OLED, a flexible display, or the like. In particular, according to an embodiment of the present invention, a three-dimensional display (3D display) is preferable.

The display 180 for viewing three-dimensional images can be divided into an additional display method and a single display method.

The single display method can implement a 3D image only on the display 180 without a separate additional display, for example, a glass or the like, and examples thereof include a lenticular method, a parallax barrier, and the like Various methods can be applied.

In addition, the additional display method can implement a 3D image using an additional display as the 3D viewing device 195 in addition to the display 180. For example, various methods such as a head mount display (HMD) type, Can be applied. In addition, the glasses type can be further divided into a passive type such as a polarizing glasses type and an active type such as a shutter glass type. On the other hand, head-mounted display type can be divided into a passive type and an active type.

In the practice of the present invention, the 3D viewing device 195 mainly describes the 3D glass for stereoscopic viewing. The glass for 3D 195 may include a passive polarizing glass or an active shutter glass, and is described as a concept including the head mount type described above.

Meanwhile, 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 control unit 170, for example, a stereo signal, a 3.1 channel signal, or a 5.1 channel signal, and outputs it as a voice. The voice output unit 185 may be implemented by various types of speakers.

The photographing unit 190 photographs the user. The photographing unit 190 may be implemented by a single camera, but is not limited thereto, and may be implemented by a plurality of cameras. On the other hand, the photographing unit 190 may be disposed on the display 180. The image information photographed by the photographing unit 190 is input to the control unit 170.

The control unit 170 can sense the gesture of the user by combining the images captured by the photographing unit 190 or the signals sensed by the sensor unit 160, respectively.

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. Also, the remote control apparatus 200 can receive the video, audio, or data signal output from the user input interface unit 150 and display it or output it by the remote control apparatus 200.

The video display apparatus 100 described above can be applied to a digital broadcasting of ATSC system (7-VSB system), digital broadcasting of DVB-T system (COFDM system), digital broadcasting of ISDB-T system (BST-OFDM system) And a digital broadcasting receiver capable of receiving at least one of the digital broadcasting signals. In addition, as a portable type, digital terrestrial DMB broadcasting, satellite DMB broadcasting, ATSC-M / H broadcasting, DVB-H broadcasting (COFDM broadcasting), MediaFoward Link Only And a digital broadcasting receiver capable of receiving at least one of digital broadcasting and the like. It may also be a digital broadcast receiver for cable, satellite communications, or IPTV.

Meanwhile, the video display device described in the present specification can be applied to a TV set, a mobile phone, a smart phone, a notebook computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player) .

Meanwhile, the 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 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 control unit of FIG. 1, FIG. 3 is a diagram illustrating various formats of a 3D image, and FIG. 4 is a diagram illustrating operations of a 3D viewing apparatus according to the format of FIG.

The control unit 170 includes a demultiplexing unit 210, an image processing unit 220, an OSD generating unit 240, a mixer 245, a frame rate converting unit 260, (250), and a formatter (260). An audio processing unit 230, and a data processing unit (not shown).

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

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

The video decoder 225 decodes the demultiplexed video signal and the scaler 235 performs scaling so that the resolution of the decoded video signal can be output from the display 180.

The video decoder 225 may include a decoder of various standards. For example, the video decoder 225 may include at least one of an MPEG-2 decoder, an H.264 decoder, an MPEC-C decoder (MPEC-C part 3), an MVC decoder, and an FTV decoder.

On the other hand, the image signal decoded by the image processing unit 220 can be divided into a case where there is only a 2D image signal, a case where a 2D image signal and a 3D image signal are mixed, and a case where there is only a 3D image signal.

For example, when a 2D video signal and a 3D video signal are mixed when an external video signal input from the external device 190 or a broadcasting video signal of a broadcasting signal received from the tuner 110 includes only a 2D video signal, And a 3D image signal only. Accordingly, the controller 170, particularly the image processing unit 220, processes the 2D image signal, the mixed signal of the 2D image signal and the 3D image signal, A 3D video signal can be output.

Meanwhile, the image signal decoded by the image processing unit 220 may be a 3D image signal of various formats. For example, a 3D image signal composed of a color image and a depth image, or a 3D image signal composed of 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.

3, the format of the 3D video signal is a side-by-side format (FIG. 3A) in which the left-eye video signal L and the right-eye video signal R are arranged left and right, A frame sequential format (FIG. 3C) in which time division is arranged, an interlaced format (FIG. 3B) in which a left eye image signal and a right eye image signal are mixed line by line 3D), a checker box format (FIG. 3E) in which the left eye image signal and the right eye image signal are mixed box by box, and the like.

The OSD generation unit 240 generates an OSD signal according to a user input or by itself. For example, based on a user input signal, a signal for displaying various information in a graphic or text form on the screen of the display 180 can be generated. The generated OSD signal may include various data such as a user interface screen of the video display device 100, various menu screens, a widget, and an icon. In addition, the generated OSD signal may include a 2D object or a 3D object.

The mixer 245 may mix the OSD signal generated by the OSD generator 240 and the decoded video signal processed by the image processor 220. At this time, the OSD signal and the decoded video signal may include at least one of a 2D signal and a 3D signal. The mixed video signal is supplied to a frame rate converter 250.

A frame rate converter (FRC) 250 converts a frame rate of an input image. For example, a frame rate of 60 Hz is converted to 120 Hz or 240 Hz. When converting the frame rate of 60 Hz to 120 Hz, it is possible to insert the same first frame between the first frame and the second frame, or insert the third frame predicted from the first frame and the second frame. When converting a frame rate of 60 Hz to 240 Hz, it is possible to insert three more identical frames or insert three predicted frames.

On the other hand, the frame rate converter 250 can output the frame rate directly without any frame rate conversion. Preferably, when a 2D video signal is input, the frame rate can be output as it is. On the other hand, when a 3D video signal is input, the frame rate can be varied as described above.

The formatter 260 receives the mixed signal, that is, the OSD signal and the decoded video signal in the mixer 245, and separates the 2D video signal and the 3D video signal.

In the present specification, a 3D video signal means a 3D object. Examples of the 3D object include a picuture in picture (PIP) image (still image or moving picture), an EPG indicating broadcasting program information, Icons, texts, objects in images, people, backgrounds, web screens (newspapers, magazines, etc.).

On the other hand, the formatter 260 can change the format of the 3D video signal. For example, it may be changed to any of the various formats illustrated in FIG. Thus, according to the format, the operation of the 3D viewing device of the glasses type can be performed as shown in FIG.

4A illustrates the operation of the 3D-use glass 195, particularly, the shutter glass 195 when the formatter 260 arranges and outputs the frames in the frame sequential format of the format shown in FIG. 3. FIG.

4B illustrates that the left eye glass of the shutter glass 195 is opened and the right eye glass is closed when the left eye image L is displayed on the display 180. FIG. Is closed, and the right eye glass is opened.

On the other hand, FIG. 4B illustrates the operation of the 3D-use glass 195, in particular the polarizing glass 195, when the formatter 260 sorts and outputs in the side-by-side format of the format of FIG. On the other hand, the 3D glass 195 applied in FIG. 4 (b) can be a shutter glass, and the shutter glass at this time can maintain the open state of both the left eye glass and the right eye glass and can act as a polarizing glass .

Meanwhile, the formatter 260 may convert a 2D video signal into a 3D video signal. For example, according to a 3D image generation algorithm, an edge or a selectable object is detected in a 2D image signal, and an object or a selectable object according to the detected edge is separated into a 3D image signal and is generated . At this time, the generated 3D image signal can be separated into the left eye image signal L and the right eye image signal R, as described above.

Although not shown in the drawing, it is also possible that a 3D processor (not shown) for 3-dimensional effect signal processing is further disposed after the formatter 260. The 3D processor (not shown) can process the brightness, tint, and color of the image signal to improve the 3D effect. For example, it is possible to perform signal processing such as making the near field clear and the far field blurring. On the other hand, the functions of such a 3D processor may be merged into the formatter 260 or merged into the image processing unit 220. This will be described later with reference to FIG.

Meanwhile, the audio processing unit 230 in the control unit 170 can perform the audio processing of the demultiplexed audio signal. For this, the audio processing unit 230 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 MPEG-2 standard encoded speech signal, it can be decoded by an MPEG-2 decoder. In addition, if the demultiplexed speech signal is a coded voice signal of the MPEG 4 BSAC (Bit Sliced Arithmetic Coding) standard according to a terrestrial DMB (Digital Multimedia Broadcasting) scheme, it can be decoded by an MPEG 4 decoder. Also, if 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 can be decoded by the AAC decoder. Further, when the demultiplexed speech signal is a Dolby AC-3 standard encoded voice signal, it can be decoded by an AC-3 decoder.

In addition, the audio processing unit 230 in the control unit 170 can process a base, a treble, a volume control, and the like.

The data processing unit (not shown) in the control unit 170 can perform data processing of the demultiplexed data signal. For example, if the demultiplexed data signal is a coded data signal, it can be decoded. The encoded data signal may be EPG (Electronic Program Guide) information including broadcast information such as a start time and an end time of a broadcast program broadcasted on each channel. For example, the EPG information may be ATSC-PSIP (ATSC-Program and System Information Protocol) information in the case of the ATSC scheme and may include DVB-SI information in the DVB scheme . The ATSC-PSIP information or the DVB-SI information may be information included in the above-mentioned stream, that is, the header (2 bytes) of the MPEG-2 TS.

2, a signal from the OSD generating unit 240 and the image processing unit 220 is mixed in a mixer 245, and then a 3D processing is performed in a formatter 260. However, the present invention is not limited to this, May be located behind the formatter. That is, the output of the image processing unit 220 is 3D-processed by the formatter 260. The OSD generating unit 240 performs the 3D processing together with the OSD generation, and then the 3D signals processed by the mixer 245 are mixed It is also possible to do.

Meanwhile, the 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 can be integrated, added, or omitted according to the specifications of the control unit 170 actually implemented.

In particular, the frame rate converter 250 and the formatter 260 are not provided in the controller 170, but may be separately provided.

5 is a diagram illustrating various scaling methods of a 3D image signal according to an exemplary embodiment of the present invention.

Referring to the drawing, in order to increase the 3-dimensional effect, the controller 170 may perform 3D effect signal processing. In particular, it is possible to perform a size adjustment or a tilt adjustment of a 3D object in a 3D image.

The 3D object 510 in the 3D image signal or the 3D image signal can be enlarged or reduced 512 as a whole at a certain ratio as shown in FIG. 5 (a) , The 3D object may be partially enlarged or reduced (trapezoidal shape, 514, 516). 5 (d), at least a portion of the 3D object may be rotated (parallelogram shape 518). This scaling (scaling) or skew adjustment can emphasize the 3D effect of a 3D object in a 3D image or a 3D image, that is, a 3D effect.

On the other hand, as the slope becomes larger, the difference in length between the parallel sides of the trapezoidal shapes 514, 516 becomes larger as shown in Fig. 5B or Fig. 5C, .

The size adjustment or the tilt adjustment may be performed after the 3D image signal is aligned in a predetermined format in the formatter 260. [ Or in the scaler 235 in the image processing unit 220. [ On the other hand, the OSD generating unit 240 may generate an object in a shape as illustrated in FIG. 5 for the generated OSD for enhancing the 3D effect.

Although not shown in the drawing, the signal processing for the 3D effect is not limited to the size adjustment or the tilt adjustment as illustrated in FIG. 5, but may also include a brightness, a tint, It is also possible that signal processing such as color adjustment is performed. For example, it is possible to perform signal processing such as making the near field clear and the far field blurring. The signal processing for the 3D effect may be performed in the controller 170 or may be performed through a separate 3D processor. Particularly, when it is performed in the control unit 170, it can be performed in the formatter 260 or in the image processing unit 220 together with the above-described size adjustment or tilt adjustment.

Particularly, according to the embodiment of the present invention, when the display 180 of the image display apparatus 100 is arranged vertically on the ground and horizontally disposed on the ground, It is possible to perform at least one of brightness, contrast, and tint of the object, or to perform signal processing for adjusting the size or tilt of the object in the 3D image. Thus, the stereoscopic effect of the 3D image or the 3D object is further improved at the time of horizontally arranged than at the time of the vertical placement of the display 180. [

FIG. 6 is a view for explaining how images are formed by the left eye image and the right eye image, and FIG. 7 is a view for explaining the depth of a 3D image according to the interval between the left eye image and the right eye image.

6, a plurality of images or a plurality of objects 615, 625, 635, and 645 are illustrated.

First, the first object 615 includes a first left eye image 611 (L) based on the first left eye image signal and a first right eye image 613 (R) based on the first right eye image signal, It is exemplified that the interval between the first left eye image 611, L and the first right eye image 613, R is d1 on the display 180. [ At this time, the user recognizes that an image is formed at an intersection of an extension line connecting the left eye 601 and the first left eye image 611, and an extension line connecting the right eye 603 and the first right eye image 603. Accordingly, the user recognizes that the first object 615 is positioned behind the display 180. [

Next, since the second object 625 includes the second left eye image 621, L and the second right eye image 623, R and overlaps with each other and is displayed on the display 180, do. Accordingly, the user recognizes that the second object 625 is located on the display 180. [

Next, the third object 635 and the fourth object 645 are arranged in the order of the third left eye image 631, L, the second right eye image 633, R, the fourth left eye image 641, Right eye image 643 (R), and their intervals are d3 and d4, respectively.

According to the above-described method, the user recognizes that the third object 635 and the fourth object 645 are positioned at positions where the images are formed, respectively, and recognizes that they are located before the display 180 in the drawing.

At this time, it is recognized that the fourth object 645 is projected before the third object 635, that is, more protruded than the third object 635. This is because the interval between the fourth left eye image 641, L and the fourth right eye image 643, d4 is larger than the interval d3 between the third left eye image 631, L and the third right eye image 633, R. [

Meanwhile, in the embodiment of the present invention, the distance between the display 180 and the objects 615, 625, 635, and 645 recognized by the user is represented by a depth. Accordingly, it is assumed that the depth when the user is recognized as being positioned behind the display 180 has a negative value (-), and the depth when the user is recognized as being positioned before the display 180 (depth) has a negative value (+). That is, the greater the degree of protrusion in the user direction, the greater the depth.

7, the interval a between the left eye image 701 and the right eye image 702 in FIG. 7A is smaller than the interval between the left eye image 701 and the right eye image 702 shown in FIG. 7 (b) the depth b 'of the 3D object in Fig. 7 (b) is smaller than the depth a' of the 3D object in Fig. 7 (a).

In this way, when the 3D image is exemplified as the left eye image and the right eye image, the positions recognized as images are different depending on the interval between the left eye image and the right eye image. Accordingly, by adjusting the display intervals of the left eye image and the right eye image, the depth of the 3D image or the 3D object composed of the left eye image and the right eye image can be adjusted.

8 is a diagram showing an example of a display arrangement of the video display device of FIG.

Referring to FIG. 8, first, FIG. 8A illustrates that the display 180 of the image display apparatus 100 is vertically disposed on the ground. To this end, the image display device 100 may be disposed on a support base 810 for vertical placement.

The support base 810 for vertical placement includes a tuner 110, a demodulation unit 120, an external device interface unit 130, a network interface unit 135, a storage unit 140, a user input An interface unit 150, a sensor unit 160, a control unit 170, an audio output unit 185, and a power supply unit.

Meanwhile, the signal processing of the inputted image can be performed in the image display apparatus 100 itself, but it is also possible to process it in the support table 810 as a set-top box. In this case, the support 810 as a set-top box and the image display apparatus 100 can perform wired communication with each other.

Next, FIG. 8 (b) illustrates that the display 180 of the video display device 100 is horizontally disposed on the ground. To this end, the image display apparatus 100 may be disposed on a support base 820 for horizontal placement. Alternatively, it may be placed on a table or desk, flat furniture or floor, not on the support 820, for example.

8B, when the display 180 of the video display device 100 is horizontally disposed on the ground, the signal processing of the input video is performed by the video display device 100 itself Alternatively, it is alternatively possible to be processed in the support 810 as the set-top box described in Fig. 8 (a). In this case, the support table 810 as a set-top box and the image display apparatus 100 can perform wireless communication with each other.

8 (b), when the display 180 of the video display device 100 is horizontally disposed on the ground, the 3D viewing device displays the 3D video using the 3D viewing devices 195a and 195b , The 3D image can be viewed.

In the present specification, the term " horizontal " refers to a state of being substantially parallel to the ground in a flat state without inclination. The horizontal direction is a direction perpendicular to the direction of the earth's gravity. May not be exactly perpendicular to the direction of the gravitational force depending on the equilibrium state of the support base 320 or the floor and may not be perpendicular to the plane of the display 180, And may be exposed in a direction opposite to the direction toward the ground. The horizontal direction may include an error range of a predetermined angle depending on the equilibrium state of the support 320 or the floor, as well as a direction that is exactly 90 degrees to the direction of the earth's gravity.

FIG. 9 is a diagram illustrating a 3D viewing apparatus and an image display apparatus according to an embodiment of the present invention, and FIG. 10 is an internal block diagram of the 3D viewing apparatus and the image display apparatus of FIG.

9 and 10, a 3D viewing apparatus 195 according to an embodiment of the present invention includes a power supply unit 910, a switch 918, a controller 920, a wireless communication unit 930, a left glass 940 ), And a right eye glass (960).

The power supply unit 910 supplies power to the left eye glass 940 and the right eye glass 960. The driving voltage VthL is applied to the left eye glass 940 and the driving voltage VthR is applied to the right eye glass 960 as described in Figs. As a result, each of the left eye glass 940 and right eye glass 960 is opened.

The driving voltage VthL and the driving voltage VthR are preferably supplied alternately in different periods and may be at different levels in order to make the polarization directions different.

The power supply unit 910 may supply operating power for operation of the control unit 920 and the wireless communication unit 930 in the 3D viewing device 195. [

The switch 918 is used to turn the operation of the 3D viewing device 195 on or off. In particular, it is used to turn on or off the operating power. When the switch 918 is turned on, the power supply unit 910 operates to supply power to the control unit 920, the wireless communication unit 930, the left eye glass 940, and the right eye glass 960.

The control unit 920 synchronizes the left eye image frame and the right eye image frame displayed on the display 180 of the image display apparatus 100 with the left eye glass 940 and the right eye glass 960 of the 3D viewing apparatus 195 It can be controlled to open or close. At this time, the left eye glass 940 and the right eye glass 960 can be opened and closed in synchronization with the synchronization signal Sync received from the wireless communication unit 198. [

In addition, the control unit 920 can control the operation of the power supply unit 910 and the wireless communication unit 930. When the switch 918 is turned on, the control unit 920 controls the power supply unit 910 to operate to supply power to each component.

The controller 920 may control the wireless communication unit 930 to transmit a pairing signal to the video display device 100 for pairing with the video display device 100. [ Or may receive the pairing signal from the image display apparatus 100. [

The wireless communication unit 930 transmits or receives data to or from the wireless communication unit 198 of the video display device 100 using the video display device 100 and the IR (InfraRed) method or the RF (Radio Frequency) . The synchronization signal Sync for opening and closing the left eye glass 940 and the right eye glass 960 can be received from the wireless communication unit 198 of the image display apparatus 100. [ The opening and closing operations of the left eye glass 940 and the right eye glass 960 are controlled in accordance with the synchronization signal Sync.

The wireless communication unit 930 can transmit or receive a pairing signal with the video display device 100. [ In addition, it is also possible to transmit a signal indicating whether or not the 3D viewing apparatus 195 is used to the video display apparatus 100. [

The left eye glass 940 and the right eye glass 960 may be active left eye glasses and active right eye glasses which are polarized according to an applied electric signal. On the other hand, the polarizing direction of the left eye glass 940 and the right eye glass 960 can be varied by the applied voltage.

For example, the left eye glass 940 and the right eye glass 960 can be alternately opened according to the synchronization signal Sync in the image display apparatus 100. [ The 3D viewing device 195 may be a shutter glass type as described above.

1 and 2, the image display apparatus 100 may include a wireless communication unit 198, a control unit 170, a display 180, and the like. Hereinafter, the operation with respect to the 3D viewing apparatus 195 will be mainly described.

The wireless communication unit 198 in the video display device 100 can transmit the synchronization signal Sync to the 3D viewing device 195. [ For example, the left eye glass 940 and the right eye glass 960 of the 3D viewing device 195 are synchronized with the left eye image frame and the right eye image frame sequentially displayed on the display 180 of the image display device 100 A synchronization signal Sync for allowing the mobile station to be opened can be transmitted from the radio communication unit 198. [

On the other hand, the controller 170 in the image display apparatus 100 controls the wireless communication unit 198 to output the synchronizing signal in accordance with the left eye image frame and the right eye image frame, which are sequentially displayed on the display 180. [

The control unit 170 controls the wireless communication unit 198 to transmit or receive a pairing signal for pairing with the 3D viewing device 195. [

FIGS. 11A to 13B are views for explaining various examples of the operation method of the image display apparatus according to the embodiment of the present invention.

The control unit 170 uses the sensor unit 160 or the photographing unit 140 to determine whether or not the display of the video display device 100 is horizontally disposed on the ground (see FIG. 8B) . For example, the gyro sensor in the sensor unit 160 may be used to detect whether the display 180 is horizontal to the ground, and the sensing signal may be input to the controller 170.

The control unit 170 may perform signal processing for the 3D effect when the display of the image display device 100 is horizontally disposed on the ground in 3D image display.

As described in the description of FIG. 5, the signal processing for the 3D effect may be performed by varying at least one of sharpness, brightness, contrast, and tint of the 3D image, or performing signal processing for adjusting the size or tilt of the object in the 3D image Lt; / RTI >

The signal processing for the 3D effect is not performed when the display 180 of the video display device 100 is horizontally disposed on the ground and the display 180 of the video display device 100 is placed vertically , It can be performed only. Alternatively, when vertically arranged, it is possible that the 3D effect signal processing is further strengthened as compared with the horizontal arrangement.

11A illustrates that the 3D object 1110 is displayed when the display 180 of the image display apparatus 100 is disposed perpendicular to the paper surface. The user can confirm that the 3D object 1110 having a predetermined depth da, particularly the first surface 1110a of the 3D object 1110, protrudes when the 3D viewing apparatus 195 is worn.

11B illustrates that the 3D object 1110 is displayed when the display 180 of the video display device 100 is horizontally disposed on the ground. The user can confirm that the 3D object 1120 having a predetermined depth db is protruded when the 3D viewing device 195 is worn. Particularly, as compared with FIG. 11A, it can be recognized that the second surface 1120b and the third surface 1120c protrude in addition to the first surface 1120a of the 3D object 1120.

In this way, when the display 180 of the image display apparatus 100 is horizontally arranged on the ground, since there is no graphic background surrounding the 3D object 1120, Likewise, the 3D object 1120 can provide a vivid stereoscopic effect as if standing.

Next, FIG. 11C illustrates signal processing for a 3D effect.

The control unit 170 gives the object 1130 the depth da by the binocular parallax between the left eye image and the right eye image when the display 180 of the image display apparatus 100 is arranged perpendicular to the paper surface . Accordingly, as shown in FIG. 11A, the 3D object 1110 appears to protrude. In addition, the signal processing for the 3D effect is not performed or can be performed to a small extent. Accordingly, the first area 1130a of the object 1130 is not subjected to scaling or tilt adjustment as described with reference to FIG.

On the other hand, when the display 180 of the image display apparatus 100 is horizontally disposed on the ground, the control unit 170 determines the depth db of the binocular parallax between the left eye image and the right eye image in the object 1140 . Accordingly, as shown in FIG. 12B, the 3D object 1120 protrudes and appears. In addition, signal processing for the 3D effect is performed. Or vertical placement.

Accordingly, the first area 1140a of the object 1140 can be partially rotated, as described in Fig. 5, and can be changed from a rectangle to a parallelogram shape. In addition, a second region 1140b and a third region 1140c may be further added near the edge of the first region 1140a for stereoscopic effect. At this time, the second area 1140b and the third area 1140c may be newly generated based on the edge of the first area 1140a.

The above-described signal processing for the 3D effect can also be performed by decoding a new view image and adding it to the original image. For example, when an input video signal is coded as a multi-view video according to multi-view video coding (MVC) or the like, a viewpoint corresponding to the second area 1140b of FIG. And the image of the view corresponding to the third area 1140c are respectively decoded and the decoded images of the respective viewpoints are divided into a video of a view corresponding to the first area 1140a of FIG. That is, to the left eye image and the right eye image.

Thus, when the display 180 is horizontally disposed on the ground, it is possible to improve and provide stereoscopic effect of the 3D object, as compared with a case where the display 180 is vertically arranged on the ground.

Meanwhile, the sensor unit 160 or the photographing unit 190 detects the position of the 3D viewing device 195 for viewing 3D images. For example, the position sensor in the sensor unit 160 may sense the user or the 3D viewing device 195.

The position of the 3D viewing device 195 may be sensed using the wireless communication unit 198 of the video display device 100 communicating with the wireless communication unit 930 of the 3D viewing device 195. [

According to the present invention, an optimized image can be displayed according to the location information of the user.

12A illustrates that the 3D object 1310 is displayed when the display 180 is horizontally disposed on the ground. In particular, when the user wears the 3D viewing device 195 at a position adjacent to the bottom of the display 180 (the portion without the photographing portion 190), the 3D object 1310 is moved to the point P1 on the display 180, So as to be protruded.

12B illustrates that a 3D object is displayed when the display 180 is horizontally placed on the ground. In particular, when the user wears the 3D viewing device 195 at a position adjacent to the top of the display 180 (where the photographing portion 190 is located), the 3D object 1320 is positioned at point P1 on the display 180, So that they are seen to be depressed.

13A is a view for explaining how an image of a 3D object is formed according to the position of the user, that is, the position of the 3D viewing device 195. [

Referring to the drawings, it is assumed that the position of the first user, i.e., the first viewing apparatus, is a position adjacent to the lower portion of the display 180 (portion without the photographing portion 190), such as the position in Fig. 12A , The position of the second user, i.e., the second viewing apparatus, is assumed to be a position adjacent to the upper portion of the display 180 (the portion in which the photographing portion 190 exists), such as the position in Fig. 12B.

The first object 1425 includes the first left eye image 1421 and the first right eye image 1423 and R and is displayed on the display 180 so that the interval is zero. Accordingly, the first user and the second user recognize that the first object 1425 is located on the display 180.

Next, the second object 1435 includes the second left eye image 1431, L and the second right eye image 1433, R, and the intervals thereof are respectively d3.

At this time, the first user is able to recognize that an image is formed at an intersection of an extension line connecting the left eye 1401 and the second left eye image 1431 and an extension line connecting the right eye 1403 and the second right eye image 1433 . Accordingly, the first user recognizes that the second object 1435 is located before the display 180, and that the second object 1435 is projected.

On the other hand, the second user can recognize that the image is formed at the intersection of the extension line connecting the left eye 1405 and the second left eye image 1431 and the extension line connecting the right eye 1407 and the second right eye image 1433 . Thus, the second user recognizes that the second object 1435 is located behind the display 180 and is seen as being recessed.

That is, when the first viewing apparatus and the second viewing apparatus are positioned in opposite directions with respect to the display 180 in a state where the display 180 is horizontally disposed on the ground, , The 3D image or the 3D object to be displayed is recognized as being projected, but the user who wears the other viewing apparatus recognizes that the 3D image or the 3D object to be displayed is visible.

To this end, in the embodiment of the present invention, it is proposed to change the left eye glass and the right eye glass of any of the above-mentioned plurality of viewing devices.

13B is a view for explaining how a 3D object is formed according to the position of the user, that is, the position of the 3D viewing device 195. [

Compared with FIG. 13A, there is a difference in that the left eye and the right eye of the second user are changed. On the other hand, it is assumed that the left eye glass and the right eye glass of the 3D viewing apparatus worn by the second user are changed instead of changing the left eye and right eye of the second user.

Referring to the drawing, the first object 1425 recognizes that the first object 1425 is located on the display 180, as both the first user and the second user, as shown in FIG. 13A.

Next, with respect to the second object 1435, the first user inputs an extension line connecting the left eye 1401 and the second left eye image 1431, and an extension line connecting the right eye 1403 and the second right eye image 1433, At this intersecting point, the image is perceived as being formed. That is, as shown in FIG. 13A, the first user recognizes that the second object 1435 is located before the display 180, and that the second object 1435 is visible.

On the other hand, with respect to the second object 1435, the second user has an extension line connecting the left eye 1405 and the second left eye image 1431, and an extension line connecting the right eye 1407 and the second right eye image 1433, At this intersecting point, the image is perceived as being formed.

13A, since the positions of the left eye 1405 and the right eye 1407 of the second user have been changed, the second user recognizes that the second object 1435 is located before the display 180 and is seen as being projected .

14 is a diagram referred to explain a method of operating the image display apparatus. And more particularly to an example of a method of displaying text in a conventional display layout.

As shown in FIG. 14A, in the case of a wall-mounted type or similar conventional display arrangement, it is assumed that users are expected to view in one direction, and is optimized for viewing in one direction. Accordingly, texts 1410, 1420, 1430, and 1440 displaying a menu or information are also displayed in one direction.

Depending on the font of the text, the appearance of the text is changed, and the font baseline becomes the baseline for displaying the text. 14B, in the case of horizontal writing, the font reference lines 1411, 1421, 1431 and 1441 are parallel to the sides located at the upper and lower ends of the display 180 regardless of where the text is displayed, and the text is displayed along the font reference line.

Accordingly, an object of the present invention is to provide an image display apparatus and an operation method thereof that can improve user convenience by implementing screen layout and screen switching optimized for content use. In particular, the present invention provides an image display apparatus and an operation method thereof, which can optimize and display a text in many directions in horizontally arranged displays.

FIGS. 15 through 17 are flowcharts illustrating an operation method of an image display apparatus according to an embodiment of the present invention, and FIGS. 18 through 22 are flowcharts illustrating an operation method of an image display apparatus according to an embodiment of the present invention, FIG.

According to the present invention, content, particularly text, can be used in various and convenient ways, so that user convenience can be improved.

15, an operation method of an image display apparatus according to an exemplary embodiment of the present invention includes dividing a screen of a horizontally arranged display into a plurality of areas (S1510) and a step of converting a text object into a plurality of divided (S1520) of displaying at least one of the areas, and is displayed in a different direction according to the displayed area.

18A shows an example of dividing the screen of the horizontally arranged display 182 into two areas, and FIG. 18B shows an example of dividing the screen into four areas.

18A to 18B, in the present invention, text objects are displayed in different directions according to the displayed area. Thus, by providing menus and information in different directions, users viewing in different directions can view the text object in the direction in which they are located without inconvenience.

According to another embodiment of the present invention, there is provided a method for detecting a location of a user, the method comprising the steps of: detecting location information of a user, wherein the number of the plurality of areas is equal to the number of users to be sensed; .

That is, if the number of users to be sensed is two, the screen can be divided into two areas 1810 and 1820 as shown in FIG. 18A, and the text objects 1811 and 1821 displayed in the respective areas can be displayed in different directions.

If the number of users to be sensed is four, the screen is divided into four areas 1830, 1840, 1850, and 1860 as shown in FIG. 18B, and text objects 1831, 1841, 1851, Can be displayed in different directions.

When the display is leveled, both users facing each other can provide an interface to optimize the direction in which they sit and read the text. For example, assuming you are sitting facing the display, all text and icons within 50% of the direction you are looking at are allocated 50% space each, In the opposite case, it can be seen in the direction toward it. Also, when you think four people are sitting around the display, you can divide the area into four, and optimize each side to provide an optimized interface that allows you to best see the text and text on each side.

In addition, when the 3D image is displayed, particularly when the 3D image is viewed using the 3D viewing apparatus, the step of sensing the position information of the 3D viewing apparatus may further include detecting the position of the 3D viewing apparatus, And the positions of the plurality of regions can be determined according to the position of the 3D viewing apparatus.

On the other hand, a font baseline for displaying the text object may be parallel to the nearest side of the four sides of the horizontally arranged display, and the text object may be displayed along the font baseline.

Meanwhile, the plurality of areas may be divided to have the same size as shown in FIGS. 18A to 18B, and the user may then vary the size and position of the divided area.

In the text object display step S1520, the number of the displayed text objects may be an even number and may be displayed symmetrically. That is, the screen is divided into even numbers, and even-numbered text objects can be displayed symmetrically as shown in Figs. 18A to 18B.

Referring to FIG. 16, an operation method of an image display apparatus according to an exemplary embodiment of the present invention first detects location information of a user or a 3D viewing apparatus (S1610).

Thereafter, a step S1620 of determining a position and a direction of displaying the text object based on the position information of the user or the 3D viewing apparatus, and displaying the text object on a horizontally arranged display S1630.

That is, according to the detected location information of the user, it is possible to provide the menu and information optimized for the user's position by determining the appropriate position to display the text object and the direction in which the text object is displayed.

In addition, when a 3D image is displayed, particularly when a 3D image is viewed using a 3D viewing apparatus, a suitable position for displaying the text object and a direction in which the text object is displayed are detected by sensing position information of the 3D viewing apparatus, It is possible to provide menus and information optimized for the position.

The location information of the user or the 3D viewing apparatus may include at least one of the number, location, direction, and height information of the user or the 3D viewing apparatus.

On the other hand, as shown in FIG. 19A, the lower end of the text object displayed on the horizontally arranged display 182 may point to the detected user or the 3D viewing device. When a plurality of text objects having the same content are displayed, a text object can be displayed such that the lower ends of the plurality of text objects 1911 and 1912 face different 3D viewing devices 195a and 195b.

Here, the lower end of the text object refers to the lower side in the state in which the characters to be displayed are read.

19B, the text objects 1921 and 1931 are displayed in the displayed area 1920 (step S1630). In this case, , ≪ / RTI > 1930).

The number of the text objects may be equal to the number of the detected users or 3D viewing devices, the font reference line for displaying the text object may be parallel to the nearest side of the four sides of the display, A text object may be displayed along the font baseline.

Further, in the text object display step S1630, the number of the displayed text objects may be an even number and may be displayed to be symmetrical. That is, the screen is divided into an even number, and even-numbered text objects can be displayed in a symmetrical form as shown in Figs. 19A to 19B.

Referring to FIG. 17, an operation method of an image display apparatus according to an embodiment of the present invention includes a step of determining a position to display a text object (S1710) and a step (S1720) displaying the text object in parallel with the text object.

20A, a plurality of users around the horizontally arranged display 182 can use the contents in all directions. The user will often sit in front of one of the four sides of the display and use the horizontally arranged display 182. [

Therefore, the text object is displayed in parallel with the side nearest to the displayed position, and can provide information and various menus to the user.

20B, font reference lines 1811, 1821, 1831, and 1841 for displaying the text objects 1810, 1820, 1830, and 1840 are displayed on the four sides 1851, 1852, 1853, and 1854 of the display And the text object may be displayed along the font baseline.

In the conventional display arrangement, even if the text object is displayed at a position close to the side, the lower end of the text object is displayed downward. However, in the present invention, since the display is arranged horizontally, the user can be on all sides of the display. Therefore, even if the user has any of the four sides of the display, it is required to be provided with an equivalent function. Therefore, the text object can also be displayed in the optimized position and direction according to the usage position and form of the user.

According to an embodiment of the present invention, the method further includes dividing the screen of the display into a plurality of areas, and in the displaying of the text objects, the text objects may be displayed in different directions according to the displayed areas.

According to an embodiment of the present invention, the method further includes sensing position information of the user. In the positioning step (S1710), a position at which the text object is displayed may be determined according to the number and location of the sensed users.

Alternatively, the method may further include sensing position information of the 3D viewing apparatus when the 3D image is displayed, particularly when viewing the 3D image using the 3D viewing apparatus, and in the positioning step (S1710) The location to be displayed may be determined according to the number and location of the 3D viewing devices to be sensed.

On the other hand, in the text object display step S1720, the number of the displayed text objects may be an even number and be displayed symmetrically. That is, the screen is divided into an even number, and even-numbered text objects can be displayed symmetrically as shown in FIG. 20B.

Fig. 21 shows an example of a screen displayed on the horizontally arranged display 182. Fig.

A predetermined graphic object 2110 such as a bonfire can be displayed on the horizontally arranged display 182 and graphic objects 2120, 2130, 2140, 2150, 2160, 2170 may be displayed. Meanwhile, the graphic object 2170 corresponding to the selected menu item may be displayed differently from objects having different colors and sizes.

In addition, the graphic objects 2120, 2130, 2140, 2150, 2160, and 2170 may include text objects displayed in different directions as shown in FIG. The direction in which the text object is displayed may vary depending on the priority of the graphic objects constituting the screen, the combination, the position of the user, and the position at which the graphic object is displayed. On the other hand, the user can select and execute one of the menus from all directions.

On the other hand, the menu screen of FIG. 21 can also serve as a standby screen, and can be utilized for interior and atmosphere composition even when specific contents are not used.

For example, you can create a warm atmosphere by maximizing the emotional feeling of talking about a bonfire, and it is more effective when you are sitting around a campfire and playing guitar with a feeling of singing, in conjunction with music contents.

22 illustrates that two music contents menus are symmetrically displayed in the case where two users use the same menu. Both users can control the music content menu. Alternatively, the user can conveniently control the music content regardless of the position using the music content.

Although the above-mentioned drawings are mainly focused on a 3D image having a positive depth so as to protrude in a direction opposite to the direction of the paper surface, the 3D image having a depth of sound that is depressed in a direction opposite to the direction toward the ground It will be appreciated that embodiments of the invention may be applied.

According to the present invention, by utilizing a horizontally arranged display, screen layout and screen switching optimized for content usage can be realized. In addition, contents, particularly text objects, can be used variously and conveniently so that user convenience can be improved and enjoyment can be provided to the user.

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 can 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 apparatuses in which data that can be read by the processor is stored. Examples of the recording medium that can be read by the processor include a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an 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 . In addition, the processor-readable recording medium may be distributed over network-connected computer systems so that code readable by the processor in a distributed fashion can be stored and executed.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the present invention.

100: Video display device
170:
180: Display
195: 3D viewing device
200: remote control device

Claims (19)

Dividing a screen of a display horizontally disposed on the ground into a plurality of areas; And
Displaying a text object in at least one of the plurality of areas,
Wherein the text objects are displayed in different directions according to the displayed area,
Further comprising the step of detecting location information of the user,
Wherein the number of the plurality of regions is equal to the number of users to be sensed and the position of the plurality of regions is determined according to the position of the user
A method of operating a video display device. delete The method according to claim 1,
Detecting position information of the 3D viewing apparatus,
Wherein the number of the plurality of regions is the same as the number of 3D viewing apparatuses to be sensed and the positions of the plurality of regions are determined according to the position of the 3D viewing apparatus. The method according to claim 1,
Wherein a font baseline for display of the text object is parallel to the nearest side of the four sides of the display and the text object is displayed along the font baseline. The method according to claim 1,
Wherein the plurality of regions have the same size. The method according to claim 1,
Wherein the number of the displayed text objects is an even number and is displayed symmetrically in the text object displaying step. Sensing location information of a user or a 3D viewing device;
Determining a position and a direction for displaying the text object based on the position information of the user or the 3D viewing apparatus; And
And displaying the text object on a display arranged horizontally with respect to the ground,
Further comprising: dividing a screen of the display into a plurality of areas,
In the text object display step, the text objects are displayed in different directions according to the displayed area,
Wherein the number of the text objects to be displayed is equal to the number of the user or 3D viewing apparatuses sensed. 8. The method of claim 7,
And the lower end of the text object is oriented toward a position of the sensed user or the 3D viewing device. delete delete 8. The method of claim 7,
Wherein the font reference line for display of the text object is parallel to the nearest side of the four sides of the display and the text object is displayed along the font reference line. 8. The method of claim 7,
Wherein the number of the displayed text objects is an even number and is displayed symmetrically in the text object displaying step. Detecting location information of the user;
Determining a position at which to display the text object based on the location information of the user;
Displaying the text object such that the text object is parallel to a side closest to the determined position among the four sides of the display horizontally disposed with respect to the ground; And
In the text object display step, the text object is displayed in a different direction according to a displayed area of the display,
Wherein the location of the text object is determined according to the number and position of the user to be sensed in the positioning step.
delete delete 14. The method of claim 13,
Detecting position information of the 3D viewing apparatus,
Wherein the location of the text object is determined according to the number and position of the 3D viewing apparatuses sensed in the positioning step. 14. The method of claim 13,
Wherein the font reference line for display of the text object is parallel to the nearest side of the four sides of the display and the text object is displayed along the font reference line. 14. The method of claim 13,
Wherein the number of the displayed text objects is an even number and is displayed symmetrically in the text object displaying step. delete

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