Hereinafter, the present invention will be described in 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 120, a signal input / output unit 128, a demodulator 130, an interface unit 150, a first controller 160 A first display 180, a second display 183, and a voice output unit 185, and the like (not shown), a second control unit 163, a first storage unit 175, a second storage unit 178, .
The tuner 120 selects an RF broadcast signal corresponding to a channel selected by a user from among RF (Radio Frequency) broadcast signals received through an antenna, converts the selected RF broadcast signal into an intermediate frequency signal or a baseband video / audio signal Conversion. 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 video / audio signal (CVBS / SIF). That is, the tuner 120 may be a hybrid tuner capable of processing a digital broadcasting signal and an analog broadcasting signal. The analog baseband video / audio signal (CVBS / SIF) output from the tuner 120 can be input directly to the first controller 160.
The tuner 120 can also receive an RF broadcast signal of a single carrier according to an ATSC (Advanced Television Systems Committee) method or an RF broadcast signal of a plurality of carriers according to a DVB (Digital Video Broadcasting) scheme Do.
Although one tuner 120 is shown in the drawing, the present invention is not limited to this, and a plurality of tuners may be used. In this case, the second tuner (not shown) may receive the corresponding RF broadcast signal of the pre-stored broadcast channel sequentially or periodically, separately from the RF (Radio Frequency) broadcast signal received through the tuner 120 Do. Similar to the tuner 120, the second tuner (not shown) converts the received RF broadcast signal into a digital IF signal (DIF) if it is a digital broadcast signal and an analog baseband video / audio signal CVBS / SIF).
The demodulator 130 receives the digital IF signal DIF converted by the tuner 120 and performs a demodulation operation.
For example, when the digital IF signal DIF output from the tuner 120 is of the ATSC scheme, the demodulation unit 130 performs 8-VSB (8-Vestigal Side Band) demodulation. Also, the demodulator 130 may perform channel decoding. For this, the demodulator 130 includes a Trellis decoder, a de-interleaver, and a Reed Solomon decoder, and performs trellis decoding and deinterleaving de-interleaving, and reed solomon decoding.
For example, when the digital IF signal DIF output from the tuner 120 is a DVB scheme, the demodulator 130 performs COFDMA (Coded Orthogonal Frequency Division Modulation) demodulation. Also, the demodulator 130 may perform channel decoding. For this, the demodulator 130 may include a convolution decoder, a deinterleaver, and a Reed-Solomon decoder to perform convolutional decoding, deinterleaving, and reed solomon decoding.
The signal input / output unit 128 performs signal input / output with the external device. To this end, the signal input / output unit 128 may include an A / V input / output unit and a wireless communication unit.
The signal input / output unit 128 is connected to an external device such as a digital versatile disk (DVD), a Blu ray, a game device, a camcorder, a computer (notebook computer), etc. and outputs an external input video signal, And transmits the input data signal to the first control unit 160 or the second control unit 163 in the image display apparatus 100. Further, the video signal, audio signal, and data signal processed in the first control unit 160 or the second control unit 163 can be output to another external device.
The A / V input / output unit is provided with an Ethernet terminal, a USB terminal, a CVBS (Composite Video Banking Sync) terminal, a component terminal, and an S-video terminal (analog terminal) for inputting / outputting video / audio / ), A DVI (Digital Visual Interface) terminal, an HDMI (High Definition Multimedia Interface) terminal, an RGB terminal, a D-SUB terminal, an IEEE 1394 terminal, a SPDIF terminal, and a Liquid HD terminal.
The digital signal input through the various terminals may be input to the first control unit 160 or the second control unit 163. The analog signal input through the CVBS terminal and the S-video terminal may be input to the first control unit 160 or the second control unit 163 or may be input to the first control unit 160 or the second control unit 163 through a separate analog / digital conversion unit (not shown) Lt; / RTI >
The wireless communication unit can perform a wireless Internet connection. For example, WLAN (Wireless LAN) (Wi-Fi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access) .
Further, the wireless communication unit can perform short-range wireless communication with other electronic devices. For example, Bluetooth, Radio Frequency Identification (RFID), infrared data association (IrDA), Ultra Wideband (UWB), ZigBee, and the like can be used.
The signal input / output unit 128 may be connected to the various set-top boxes via at least one of the various terminals described above to perform input / output operations with the set-top box. For example, if the set-top box is a set-top box for an IP (Internet Protocol) TV, the video, audio, and data signals processed by the settop box for IPTV are transmitted to the second controller 163 And may transmit signals processed by the first control unit 160 or the second control unit 163 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, and may include an Internet TV or a full browsing TV .
On the other hand, the video display device 100 can perform Internet connection or communication via the Ethernet terminal of the signal input / output unit 128, the wireless communication unit, or the set-top box for the IP (Internet Protocol) TV .
1, the signal input / output unit 110 may be connected to a camera 190 capable of capturing a still image and a moving image. The camera 190 can photograph a user's image in the image communication and send it to the other party or display it on the image display device. The camera 190 may be connected to an interface such as a USB terminal or a wireless communication unit of the signal input / output unit 110. Meanwhile, the image display apparatus according to the present invention includes a camera 190, and the first control unit 160 or the second control unit 163 can directly control the operation of the camera 190.
If the signal output from the signal input / output unit 128 is a digital signal, the signal may be input to the first controller 160 or the second controller 163 and processed. The output digital signal may be a signal according to various standards, but it is a stream signal in the drawing. The stream signal TS 2 may be a signal in which a video signal, an audio signal, and a data signal are multiplexed. For example, the stream signal TS 2 may be an MPEG-2 TS (Transprt Stream) in which an MPEG-2 standard video signal, a Dolby AC-3 standard audio signal, etc. are multiplexed.
The demodulation unit 130 performs demodulation and channel decoding, and can output the stream signal TS 1. The stream signal TS 1 at this time may be a signal in which a video signal, an audio signal, and a data signal are multiplexed. For example, the stream signal TS 1 may be an MPEG-2 TS (Transprt Stream) multiplexed with an MPEG-2 standard image 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.
The stream signal TS1 is input to the first control unit 160 or the second control unit 163 to perform demultiplexing, signal processing, and the like. It is also possible that a channel browsing processing unit (not shown) performs a process for channel browsing before being input to the first control unit 160 or the second control unit 163.
Meanwhile, the demodulation unit 130 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 interface unit 150 transmits an input signal from the user to the first control unit 160 or a signal from the first control unit 160 to the user. For example, the interface unit 150 may be provided with various functions such as power on / off, channel selection, screen setting, etc. from the remote control device 200 in accordance with various communication methods such as an RF (Radio Frequency) Or may transmit a signal from the first control unit 160 to the remote control apparatus 200. The remote control apparatus 200 may be connected to the remote control apparatus 200 via a network. Meanwhile, an input signal from the user may be transmitted to the second control unit 163 or a signal from the second control unit 163 may be transmitted to the user.
The first controller 160 may demultiplex the input stream and perform signal processing on the demultiplexed signals to generate and output a signal for video and audio output. The overall operation of the video display device 100 can be controlled.
Although not shown in the figure, the first controller 160 may include a demultiplexer, an image processor, an audio processor, a data processor, an OSD generator, and the like.
The first controller 160 controls the tuner 120 to control the tuner 120 to select an RF broadcast corresponding to a channel selected by the user or a previously stored channel.
Also, the first control unit 160 can demultiplex the received stream signal (TS 1 or TS 2), for example, an MPEG-2 TS, into a video signal, a voice signal and a data signal, respectively.
Also, the first controller 160 may perform image processing of the demultiplexed video signal. For example, if the demultiplexed video signal is a coded video signal, it can be decoded. Specifically, when the demultiplexed video signal is an MPEG-2 standard-coded video signal, it can be decoded by an MPEG-2 decoder. Also, if the demultiplexed video signal is a video signal of the H.264 standard according to the DMB (Digital Multimedia Broadcasting) scheme or DVB-H, it can be decoded by the H.264 decoder.
Also, the first controller 160 may process the brightness, tint, and color of the video signal.
The video signal processed by the first controller 160 is input to the first display 180 and displayed. It is also possible to input to an external output terminal connected to an external output device (not shown).
Also, the first control unit 160 can perform the voice processing of the demultiplexed voice signal. 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.
In addition, the first controller 160 may process a base, a treble, a volume control, and the like.
The voice signal processed by the first control unit 160 is input to the voice output unit 185, for example, a speaker and is output as voice. It is also possible to input to an external output terminal connected to the external output device.
Also, the first controller 160 may receive the analog baseband video / audio signal (CVBS / SIF) and perform signal processing. Here, the analog baseband video / audio signal CVBS / SIF input to the first controller 160 may be an analog baseband video / audio signal output from the tuner 120 or the signal input / output unit 128. The processed video signal is input to the display 180 and displayed, and the processed audio signal is input to the audio output unit 185, for example, a speaker and is output as a voice.
Also, the first controller 160 may 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 DVB-Service Information (DVB-SI) information in case of the DVB scheme . The ATSC-PSIP information or DVB-SI information may be information included in the above-described stream, i.e., the header (4 bytes) of the MPEG-2 TS.
Also, the first controller 160 may perform a control operation for OSD (On Screen Display) processing. Specifically, the first control unit 160 may display various types of information on the basis of at least one of the image-processed image signal and the data-processed data signal, or a user input signal from the remote control apparatus 200, It is possible to generate an OSD signal for displaying text.
The OSD signal generated for the graphic or text display described above may include various data such as a user interface screen of the image display apparatus 100, various menu screens, a widget, and an icon.
Similar to the first control unit 160 described above, the second control unit 163 receives the stream signals TS1 and TS2 or analog video / audio signals, and performs video signal processing, audio signal processing, data signal processing, and the like Can be performed. Other operations refer to the first control unit 160.
Meanwhile, the first controller 160 can transmit and receive a video signal and a data signal to and from the second controller 163. Although the first control unit 160 and the second control unit 163 operate in parallel in the figure, the second control unit 163 is not limited to the operation of the first control unit 160, It is also possible to do.
Meanwhile, in the embodiment of the present invention, it is assumed that the first control unit 160 performs the video signal and the data signal processing to be displayed on the first display 180, and the second control unit 163 displays It is assumed that the video signal and the data signal processing are performed.
On the other hand, when the control of the second display 183 is performed by the second control unit 163, the signal processing amount of the first control unit 160 can be further reduced.
Although not shown in the drawing, it is also possible to arrange each interface or any one interface between the first control unit 160 and the second control unit 163.
The first storage unit 175 or the second storage unit 178 may store a program for signal processing and control in the first control unit 160 or the second control unit 163, Signals, voice signals, and data signals.
The first storage unit 175 or the second storage unit 178 may also function to temporarily store video, audio, or data signals input from the signal input / output unit 128.
The first storage unit 175 or the second storage unit 178 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (E.g., SD or XD memory), RAM, ROM (EEPROM, etc.), and the like.
The video display device 100 may reproduce a file (moving picture file, still picture file, music file, document file, etc.) stored in the first storage unit 175 or the second storage unit 178, 1 display 180, a second display 183, and the like.
The first display 180 or the second display 183 may receive the video signal, the data signal, the OSD signal or the signal processed by the first control unit 160 or the second control unit 163, And converts a video signal, a data signal, and the like into R, G, and B signals, respectively, to generate a driving signal.
The first display 180 or the second display 183 may be implemented in various forms such as a PDP, an LCD, an OLED, a flexible display, and a 3D display. Also, the first display 180 or the second display 183 may be configured as a touch screen and used as an input device in addition to the output device.
In the embodiment of the present invention, two separate displays 180 and 183 are provided in a single video display device 100 as shown in FIG. 1, And control units 160 and 183 for controlling the control units 180 and 183, respectively.
The second display 183 can be used to display a picture as a picture (PIP), a separate menu, or separate content data separately from the image displayed on the first display 180. Accordingly, the second display 183 may be referred to as a media bar. As described above, a menu or the like is displayed on a separate display so as not to interfere with an image being viewed in the single image display apparatus 100, thereby enhancing user convenience.
The separate displays are not limited to two as shown in the drawing, but may be implemented by two or more displays. Accordingly, each control unit for controlling each display may be further provided. The second display 183 and the like may be disposed at various positions such as the upper side, the left side or the right side of the first display 180 as well as the lower side of the first display 180.
The image display apparatus 100 may include a first power supply unit 141 for supplying necessary power and a first control unit 160 or a second control unit 163 may include a first power supply unit 141 for supplying power from the first power supply unit 141, 1 < / RTI > display 180 or the second display 183, as shown in FIG. That is, since two or more separate displays are provided, power consumption can be reduced by turning off the power when there is no image to be displayed.
The second control unit 163 may further include a second power supply unit 143 for supplying power to the second display 183 when the second display 183 is not required. The power supplied to the display 183 is cut off.
The audio output unit 185 receives a signal processed by the first control unit 160 or the second control unit 163, for example, a stereo 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 remote control device 200 transmits the user input to the 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.
Further, the remote control apparatus 200 may receive a video signal, an audio signal, a data signal, and the like from the interface section 150 and output it.
Meanwhile, the remote controller 200 according to the embodiment of the present invention may be a space remote controller. The description of the spatial remote controller will be described later with reference to Fig. 2 and the following.
Although not shown in the drawing, a channel browsing processor (not shown) for generating a channel signal or a thumbnail image corresponding to an external input signal may be further provided. The channel browsing processing unit (not shown) includes a signal input / output unit 128 and a first control unit 160 or a second control unit 163 between the demodulation unit 130 and the first control unit 160 or the second control unit 163, As shown in Fig.
Accordingly, the channel browsing processing unit (not shown) receives the stream signal TS output from the demodulation unit 130 or the stream signal output from the external signal input / output unit 128, And generate a thumbnail image. The generated thumbnail image may be encoded as it is or may be input to the first controller 160 or the second controller 163. In addition, the generated thumbnail image may be encoded in a stream format and input to the first controller 160 or the second controller 163. [ The first control unit 160 or the second control unit 163 may display a thumbnail list having a plurality of thumbnail images on the first or second display 180 or 183 using the input thumbnail image.
The video display apparatus 100 described above can be applied to a digital broadcasting of ATSC system (8-VSB system), digital broadcasting of DVB-T system (COFDM system), digital broadcasting of ISDB-T system (BST-OFDM system) (DMB) type digital broadcasting, ATSC-M / H type digital broadcasting, DVB-H (COFDM) digital broadcasting, A digital broadcasting receiver capable of receiving at least one of broadcasting, media flow-only (Digital Media), 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) .
2A and 2B are diagrams illustrating an example of the remote control apparatus of FIG.
Referring to the drawings, a spatial remote controller 301 can be used as the remote controller of FIG.
The space remote controller 301 is one of the remote control devices 200 that can input commands to the image display device 100. In this embodiment, the spatial remote controller 301 transmits and receives signals in accordance with the RF communication standard with the image display apparatus 100. As shown in FIG. 2A, a pointer 302 corresponding to the spatial remote controller 301 may be displayed on the image display device 100. FIG.
The user can move or rotate the space remote controller 301 up and down, left and right, and back and forth. The pointer 302 displayed on the video display device 100 corresponds to the motion of the spatial remote controller 301. [ 2B shows a bar moving in a direction indicated by a pointer displayed on the image display device 100 in response to the motion of the spatial remote controller 301. [
As shown in FIG. 2A, when the user moves the spatial remote controller 301 to the left, the pointer displayed on the image display device 100 also moves to the left corresponding to the pointer. In the present embodiment, the spatial remote controller 301 has a sensor capable of discriminating a motion. Information about the motion of the spatial remote controller 301 sensed through the sensor of the spatial remote controller 301 is transmitted to the image display apparatus 100. [ The image display apparatus 100 determines the operation of the spatial remote controller 301 from the information on the motion of the spatial remote controller 301 and calculates the coordinate value of the pointer 302 corresponding thereto.
2A and 2B illustrate an example in which the pointer 302 displayed on either the first display 180 or the second display 183 moves in correspondence with the up, down, left, right, or rotation of the spatial remote controller 301. FIG. The moving speed and the moving direction of the pointer 302 may correspond to the moving speed and moving direction of the spatial remote controller 301. [ In addition, movement of the pointer 302 may cross the first display 180 and the second display 183.
In this embodiment, the pointer displayed on the video display device 100 is set to move in response to the operation of the spatial remote controller 301. [ As another example, it is possible to set a predetermined command to be inputted to the image display apparatus 100 in response to the operation of the spatial remote controller 301. That is, when moving the remote controller 301 back and forth, the size of the image displayed on the image display device 100 can be enlarged or reduced. Therefore, the present embodiments are not intended to limit the scope of the present invention.
3 is an internal block diagram of the interface unit of FIG. 1 and the spatial remote controller of FIG. 2;
The space remote controller 301 includes a wireless communication unit 320, a user input unit 330, a sensor unit 340, an output unit 350, a power supply unit 360, a memory 370, Lt; RTI ID = 0.0 > 380 < / RTI >
The wireless communication unit 320 transmits and receives signals to and from the image display apparatus 100. The spatial remote controller 301 may include an RF module 321 capable of transmitting and receiving signals to and from the interface unit 150 of the image display apparatus 100 according to the RF communication standard. The spatial remote controller 301 may include an IR module 323 capable of transmitting and receiving signals to and from the interface unit 310 of the image display apparatus 100 according to the IR communication standard.
In this embodiment, the spatial remote controller 301 transmits a signal containing information on the operation of the spatial remote controller 301 to the image display device 100 through the RF module 321. [ In addition, the spatial remote controller 301 can receive the signal transmitted by the image display apparatus 100 through the RF module 321. The spatial remote controller 301 can transmit commands to the video display device 100 via the IR module 323, such as power on / off, channel change, volume change, and the like, as needed.
The user input unit 330 may include a keypad or a button. The user can input a command related to the image display apparatus 100 to the spatial remote controller 301 by operating the user input unit 330. [ When the user input unit 330 includes a hard key button, the user can input a command related to the image display apparatus 100 to the spatial remote controller 301 through the push operation of the hard key button. When the user input unit 330 has a touch screen, the user can touch a soft key of the touch screen to input a command related to the image display apparatus 100 to the space remote controller 301. [ In addition, the user input unit 330 may include various types of input means such as a scroll key, a jog key, etc., which can be operated by the user, and the present invention is not limited to the scope of the present invention.
The sensor unit 340 may include a gyro sensor 341 or an acceleration sensor 343. The gyro sensor 341 can sense information on the operation of the spatial remote controller 301. [ For example, the gyro sensor 341 can sense information about the operation of the spatial remote controller 301 on the basis of the x, y, and z axes. The acceleration sensor 341 can sense information on the moving speed of the spatial remote controller 301 and the like. The output unit 350 may output a video or audio signal corresponding to an operation to the user input unit 330 or a signal transmitted from the video display device 100. [ The user can recognize whether the user input unit 330 is operated or whether the image display apparatus 100 is controlled through the output unit 350.
For example, the output unit 350 includes an LED module 351 that is turned on when the user input unit 330 is operated or a signal is transmitted and received between the image display device 100 and the image display device 100 through the wireless communication unit 320, 353, an audio output module 355 for outputting sound, or a display module 357 for outputting an image.
The power supply unit 360 supplies power to the space remote controller 301. The power supply unit 360 can reduce the power waste by interrupting the power supply when the spatial remote controller 301 does not move for a predetermined time. The power supply unit 360 can resume power supply when a predetermined key provided in the space remote controller 301 is operated.
The memory 370 may store various types of application data or the like necessary for the control or operation of the spatial remote controller 301. If the spatial remote controller 301 wirelessly transmits / receives a signal through the image display device 100 and the RF module 321, the spatial remote controller 301 and the image display device 100 transmit / receive signals through a predetermined frequency band . The control unit 380 of the spatial remote controller 301 stores information on the frequency band and the like capable of wirelessly transmitting and receiving signals to and from the video display device 100 paired with the spatial remote controller 301 in the memory 370 Can be referenced.
The control unit 380 controls various matters related to the control of the spatial remote controller 301. The control unit 380 transmits a signal corresponding to a predetermined key operation of the user input unit 330 or a signal corresponding to the operation of the spatial remote controller 301 sensed by the sensor unit 340 through the wireless communication unit 320 100 to the interface unit 150 of FIG.
The interface unit 150 of the image display apparatus 100 includes a wireless communication unit 320 capable of wirelessly transmitting and receiving signals to and from the spatial remote controller 301 and a wireless communication unit 320 capable of transmitting and receiving the coordinate values of the pointer corresponding to the operation of the spatial remote controller 301 And a coordinate value calculation unit 315 that can calculate the coordinate value.
The wireless communication unit 320 can transmit and receive signals wirelessly with the spatial remote controller 301 through the RF module 321. Further, the spatial remote controller 301 can receive a signal transmitted through the RF module 323 according to the IR communication standard.
The coordinate value calculator 315 corrects the camera shake or error from the signal corresponding to the operation of the spatial remote controller 301 received through the wireless communication unit 320 and outputs the coordinates of the pointer 302 to be displayed on the first display 180 The value (x, y) can be calculated.
The transmission signal of the spatial remote controller 301 inputted to the video display device 100 through the interface unit 150 may be transmitted to the first control unit 160 or the second control unit 163 of the video display device 100 have. The first control unit 160 or the second control unit 163 determines the information on the operation of the spatial remote controller 301 and the key operation from the signal transmitted from the spatial remote controller 301, Can be controlled.
A block diagram of the spatial remote controller 301 among the image display apparatus 100 and the remote controller 200 shown in FIGS. 1 to 3 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 specifications of the video display device 100 and the spatial remote controller 301 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. 4 is a flowchart illustrating an operation method of an image display apparatus according to an embodiment of the present invention, and FIGS. 5 to 9 are views referred to explain the operation method of FIG.
Referring to the drawings, a predetermined image 510 is displayed on the first display 180 (S410). At this time, the predetermined image 510 may be a broadcast signal image received from the tuner 120, an external input image input from the signal input / output unit 128, or a playback image of the multimedia data stored in the storage units 175 and 178 have.
When an event for changing the setting of the first display 180 occurs during viewing of the predetermined image 610, the setting menu 620 of the first display is displayed on the second display 183 as shown in FIG. 6 An event for changing the setting of the first display 180 may be displayed on the remote controller 200 or various setting keys of the video display device 180 to change the setting of the first display 180. [ (Not shown), or displaying a message or a menu for confirming whether or not the setting is automatically changed according to the status of the content or the video display device.
The first controller 160 or the second controller 163 may control the second display 183 to display the setting menu 620 of the first display. In this case, when the control of the second display 183 is performed in the second control unit 163, the signal processing amount of the first control unit 160 can be reduced and the processing speed can be improved accordingly.
The second controller 163 may control the second display 183 based on the input signal received from the first controller 160 or the signal processed by the first controller 160.
Here, the setting menu 620 of the first display may be a picture quality related setting menu such as a screen brightness, a contrast ratio, and a color temperature of the first display, and may be a setting menu other than picture quality such as volume adjustment and reservation setting.
Conventionally, the setting menu of the display is displayed on the OSD screen so as to overlap with the image being watched. Therefore, since the main viewing image is partially covered, it is difficult to smoothly perform various setting changes or input and viewing of the contents. The present invention displays the setting menu of the display on a separate display in a single image display device so that it does not interfere with the viewing of the image displayed on the first display and various settings can be performed more efficiently.
Thereafter, when the setting value of the setting menu 620 is changed (S430), the changed setting value is applied to the first display 180 (S440)
6, a setting menu 620 for adjusting the brightness of the first display 180 is displayed on the second display 183.
The setting menu may include a tab 622 for determining a current setting value 623, a scroll bar 612, and a relative position of the current setting value. On the other hand, when the tab 622 is selected and dragged using the pointer 605 displayed in correspondence with the operation in the space remote controller 301 described with reference to FIGS. 2A to 3, the setting value is changed according to the dragged degree do.
Then, the changed screen brightness setting value is applied to the first display 180.
FIG. 6 illustrates a setting menu for adjusting the setting value using the scroll bar. However, the setting menu may be configured in various manners, and the present invention is not limited to the menus.
On the other hand, the video display device according to the present invention has a plurality of displays and can be used as needed, so that power consumption can be reduced by turning off the power of the display, which is in need of use.
The first control unit 160 may control the power supply unit 141 to shut off the power supplied to the first display 180 or the second display 183. [ The second display unit 183 may further include a separate power supply unit 143 for supplying power to the second display 183 and the second control unit 163 may control the power supply to the second display 183 to be turned off. That is, when the setting menu is not displayed, the second display can be turned off.
According to another aspect of the present invention, there is provided a method of operating an image display apparatus, the method further comprising the step of displaying, on the second display, an example image to which the input set value is applied when there is a setting value change input of the setting menu can do.
7, the main viewing image 710 is displayed on the first display 180, and the color temperature setting menu 720 of the first display 180 is displayed on the second display 183. The selected set value 712 can be displayed separately from other set values such as a highlight display.
The first control unit 160 or the second control unit 163 can control the second display 183 by using the example image 730 to which the input set value is applied to the second display 183.
Conventionally, there has been an inconvenience in viewing an example image by applying a changed set value to an image being watched or superimposed on the image being watched. However, according to the present invention, the example image is not displayed on the first display 180 , On the separate second display 183, it is possible to display the example image without selecting the main viewing image. In addition, the image quality of the main viewing image and the image quality of the example image can be intuitively compared, and the user can more accurately select the desired image quality.
On the other hand, the example image 730 may be an image obtained by applying the input set value to the image 710 displayed on the first display 180. In this case, when the control of the second display 183 is performed in the second control unit 163, the signal processing amount of the first control unit 160 can be reduced and the processing speed can be improved accordingly.
According to another aspect of the present invention, there is provided a method of operating an image display device, the method further comprising displaying on the second display a message asking whether to apply the set value applied to the example image to the first display have.
As shown in FIG. 8, a message 731 asking whether to apply to the first display may be displayed in duplicate with the example image 730, and may be displayed in another area of the second display.
The user intuitively contrasts the image quality of the main viewing image with the image quality of the example image to select whether to apply or cancel the application and to change the setting again.
The image display apparatus 100 further includes a separate third display 185. The first controller 160 or the second controller 163 controls the second display 183 to display the setting A menu 920 is displayed on the third display 185, and an exemplary image 930 is displayed on the third display 185. [ In this case, when the control of the third display 185 is performed by the second control unit 163, there is an advantage that the signal processing amount of the first control unit 160 can be further reduced.
Also, for faster processing speed, the image display apparatus 100 may include a separate third control unit to control the third display.
That is, when there is a setting value change input of the setting menu, the third control unit controls the display unit to display an example image to which the input set value is applied on a separate third display, And to display a message on the third display asking whether or not to apply it to the first display.
According to the present invention, when the display setting is changed during the video viewing, the setting menu can be displayed separately from the video being watched so as not to interfere with the viewing of the video to be displayed. Particularly, Can be confirmed and applied on a separate display, and the user's convenience can be improved.
In addition, since the example image to which the setting value to be changed is applied is displayed separately from the main viewing image, it can be intuitively compared, so that the desired setting can be confirmed and selected more accurately.
In addition, unnecessary displays among a plurality of displays can be powered off to reduce power consumption, and a separate control unit can be provided to reduce the data and signal processing amount of the individual control units, thereby improving the operation speed of the image display apparatus.
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 apparatuses in which data that can be read by the processor is stored. Examples of the recording medium readable 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 also a carrier wave such as transmission over the Internet. In addition, the processor readable recording medium may be distributed over networked computer systems so that code readable by the processor in a distributed manner 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.
