KR101777858B1 - Method for operating an apparatus for displaying image - Google Patents

Abstract

A method of operating an image display apparatus according to an exemplary embodiment of the present invention is a method of operating an image display apparatus that displays an image on a display unit of a first aspect ratio, the method comprising: receiving an image of a second aspect ratio; (OSD), scaling an image of the second aspect ratio to a third aspect ratio based on the aspect ratio of the OSD, mixing the OSD and the image scaled by the third aspect ratio Outputting the mixed OSD and the image, and scaling the mixed OSD and the image at the first aspect ratio.

Description

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

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation method of an image display apparatus, and more particularly to an operation method of an image display apparatus in which user convenience is enhanced.

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 .

Accordingly, an object of the present invention is to provide an operation method of a video display device in which user convenience can be enhanced by realizing screen layout and screen switching optimized for content use.

A method of operating an image display apparatus according to an exemplary embodiment of the present invention is a method of operating an image display apparatus that displays an image on a display unit of a first aspect ratio, the method comprising: receiving an image of a second aspect ratio; (OSD), scaling an image of the second aspect ratio to a third aspect ratio based on the aspect ratio of the OSD, mixing the OSD and the image scaled by the third aspect ratio Outputting the mixed OSD and the image, and scaling the mixed OSD and the image at the first aspect ratio.

A method of operating an image display apparatus according to an exemplary embodiment of the present invention is a method of operating an image display apparatus that displays an image on a display unit of a first aspect ratio, the method comprising: receiving a signal including a video image and a letter box Extracting the image, vertically enlarging the extracted image, and horizontally enlarging the vertically enlarged image at a first aspect ratio.

A video display device according to an embodiment of the present invention includes a display unit having a first aspect ratio, an image having a second aspect ratio to generate an OSD, and based on the aspect ratio of the OSD, And a scaler for scaling the OSD and the image in a first aspect ratio, and a controller for scaling the image of the OSD to a third aspect ratio, mixing the OSD and the image scaled by the third aspect ratio, .

According to the present invention, an aspect ratio and a display size of contents can be selected according to a user's preference. Therefore, the contents can be more conveniently used and the user can be provided with pleasure.

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. 1 according to an embodiment of the present invention.
3 is a diagram illustrating a control method of a remote control apparatus for controlling an image display apparatus according to embodiments of the present invention.
4 is an internal block diagram of part of the interface unit of FIG. 1 and the remote control apparatus of FIG. 3;
FIG. 5 is a diagram for explaining an operation method of an image display apparatus according to an embodiment of the present invention. Referring to FIG.
6 is a flowchart illustrating an operation method of an image display apparatus according to an embodiment of the present invention.
FIGS. 7 and 8 are views for explaining an operation method of an image display apparatus according to an embodiment of the present invention.
9 is a flowchart illustrating an operation method of an image display apparatus according to an embodiment of the present invention.
FIG. 10 is a diagram for explaining a method of operating an image display apparatus according to an embodiment of the present invention. Referring to FIG.

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 110, a demodulator 120, an external device interface 130, a network interface 135, A user input interface unit 150, a control unit 170, a display unit 180, an audio output unit 185, and a power supply unit 190. In addition, a channel browsing processing unit 160 may be further included.

The image display apparatus 100 according to an exemplary embodiment of the present invention may further include a frame rate conversion unit 175 and a formatter 176. The frame rate conversion unit 175 and the formatter 176 may be implemented And may be included in the control unit 170 in some cases.

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 an 8-VSB (8-Vestigal Side Band) demodulation. Also, the demodulation unit 120 may perform channel decoding. To this end, the demodulator 120 includes a trellis decoder, a de-interleaver, and a reed solomon decoder to perform trellis decoding, deinterleaving, Solomon decoding can be performed.

For example, when the digital IF signal output from the tuner 110 is a DVB scheme, the demodulator 120 performs COFDMA (Coded Orthogonal Frequency Division Modulation) demodulation. Also, the demodulation unit 120 may perform channel decoding. 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 the video to the display unit 180 and audio to the audio output unit 185.

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

The external device interface unit 130 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 video display device 100 is connected to other electronic devices in accordance with communication standards such as Bluetooth, Radio Frequency Identification (RFID), IrDA (Infrared Data Association), UWB (Ultra Wideband), ZigBee, Can be connected.

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 additional display 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 such as movies, advertisements, games, VOD, broadcasting signals, and the like, provided from a contents provider 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.

For example, the user input interface unit 150 may transmit a user input signal input from a sensing unit (not shown) that senses the gesture of the user to the control unit 170 or a signal from the control unit 170 (Not shown). Here, the sensing unit (not shown) may include a touch sensor, an audio sensor, a position sensor, an operation sensor, and the like.

The control unit 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 unit 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. [

A frame rate converter (FRC) can convert 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 conversion unit 175 can output the signal as it is without any frame rate conversion

The formatter 176 can mix the OSD signal generated by the OSD generation unit and the decoded video signal processed by the image processing unit and change the format of the signal to be suitable for the display unit 180 and output have. For example, the R, G, and B data signals may be output as low voltage differential signaling (LVDS) signals or mini-LVDS signals.

In addition, it is possible to perform scaling of an image signal so that the resolution and size of the image displayed on the display unit 180 can be varied.

On the other hand, a zoom mode in which the image display apparatus 100 enlarges a size at which an image is displayed while maintaining the resolution of a video signal, a zoom mode in which the image is displayed only in the left and right direction (horizontal direction) The controller 170 can control the formatter 176, the display unit 180, and the like so as to support various enlargement modes such as a horizontal zoom mode for enlarging the displayed size.

In addition, the formatter 176 may receive the OSD signal and the video signal, and may separate the 2D video signal and the 3D video signal. On the other hand, the formatter 176 can change the format of the 3D video signal and convert the 2D video signal into the 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 a left eye image signal L and a right eye image signal R. [

Meanwhile, according to the embodiment, the formatter 176 may include a mixer for mixing the OSD signal generated by the OSD generation unit and the decoded video signal processed by the image processing unit, a resolution and size of the image displayed on the display unit 180, And a scaler that performs scaling of the image signal so as to be variable.

1, the control unit 170 may include a demultiplexing unit, an image processing unit, and the like. This will be described later with reference to FIG.

Each component of the control unit 170 may be integrated, added, or omitted according to the specifications of the controller 170 that is actually implemented.

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 allows the display unit 180 or the audio output unit 185 to output the video or audio signal processed by the user through the channel information or the like selected by the user.

The control unit 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 video signal can be output through the display unit 180 or the audio output unit 185.

Meanwhile, the control unit 170 may control the display unit 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 unit 180.

At this time, the image displayed on the display unit 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 control unit 170 generates a 3D object for a predetermined object among the images displayed on the display unit 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. In the present invention, the content may correspond to one object or may include a plurality of objects.

The 3D object may be processed to have a depth different from that of the image displayed on the display unit 180. Preferably, the 3D object may be processed so as to be protruded compared to the image displayed on the display unit 180.

On the other hand, the control unit 170 recognizes the position of the user based on the image photographed from the photographing unit (not shown). 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 video display device 100 corresponding to the user position can be grasped.

Meanwhile, it is possible to further include a channel browsing processor 160 for generating a thumbnail image corresponding to a channel signal or an external input signal.

The channel browsing processing unit 160 receives the stream signal TS output from the demodulation unit 130 or the stream signal output from the external device interface unit 130 and extracts an image from the input stream signal, Can be generated. 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 unit 180 using the input thumbnail images.

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

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

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

In the single display method, a 3D image can be implemented by the display unit 180 alone without a separate additional display, for example, glasses or the like, and examples thereof include various methods such as a lenticular method, a parallax barrier, Can be applied.

Meanwhile, the additional display method can implement a 3D image using an additional display besides the display unit 180. For example, various methods such as a head mount display (HMD) type and a glasses 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.

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

The touch screen can directly input data or commands through the screen. When a touch object such as a human hand or an object such as a stylus pen touches the screen at a specific object or position displayed on the screen, To the controller so as to perform the corresponding operation. In addition, the touch input can be performed by an object other than the hand tip and the stylus pen.

The touch screen can be implemented in various ways such as an electrostatic type and a static pressure type, and the present invention is not limited to the implementation method of the touch screen.

The sensor unit (not shown) may include a proximity sensor, a touch sensor, a voice sensor, a position sensor, a motion sensor, and the like.

The proximity sensor makes it possible to detect the presence of an object to be approached or nearby, without mechanical contact. The proximity sensor can detect a nearby object by using the change of the alternating magnetic field or the change of the static magnetic field, or by using the change rate of the capacitance.

The touch sensor may be a touch screen constituting the display unit 180. The touch sensor can sense a position or an intensity of touching the touch screen by the user. The voice sensor can sense user voice or various sounds generated by the user. The position sensor can sense the position of the user. The motion sensor can sense the user's gesture motion and the like. The position sensor or the motion sensor may be an infrared sensor or a camera and may sense the distance between the image display device 100 and the user, the presence or absence of the user, the hand motions of the user, the keys of the user, .

Each of the sensors described above transmits a result of sensing the user's voice, touch, position, and operation to a separate sensing signal processor (not shown), or primarily analyzes the sensing result and generates a corresponding sensing signal, (170).

In addition to the above-described sensors, the sensor unit may include various sensors capable of sensing the distance between the image display device 100 and the user, the presence or absence of the user's movement, the user's hand gesture, the user's key, can do.

Meanwhile, the signal detected by the sensor unit is transmitted to the controller 170 through the user input interface unit 150.

The control unit 170 can detect the gesture of the user by combining the images captured from the photographing unit (not shown) or the signals detected from the sensor unit (not shown), respectively.

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 audio output unit 185 may be implemented by various types of speakers.

The power supply unit 190 supplies power to the entire image display apparatus 100. Particularly, it is possible to supply power to a control unit 170 that can be implemented in the form of a system on chip (SOC), a display unit 180 for displaying an image, and an audio output unit 185 for audio output . Further, according to the embodiment, power can be supplied to the heat generating portion including the heat ray.

The remote control apparatus 200 transmits the user input to the user input interface unit 150. [ To this end, the remote control device 200 can use infrared (IR) communication, radio frequency (RF) communication, Bluetooth, ultra wideband (UWB), or ZigBee. 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 (8-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 various applications such as a TV receiver, a smart TV, a mobile phone, a smart phone, a notebook computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants) (Portable Multimedia Player), and the like.

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.

2A and 2B are internal block diagrams of the control unit of FIG. 1 according to embodiments of the present invention.

2A, the controller 170 may include a demultiplexer 210, an image processor 220, an OSD generator 240, and a processor 250. The demultiplexer 210, have. A voice processing unit (not shown), 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 unit 180.

The video decoder 225 may include a decoder of various standards.

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 can be generated on the screen of the display unit 180. [ 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.

On the other hand, the processor 250 can control the overall operation in the control unit 170. [ For example, the processor 250 controls the image processor 220 and the OSD generator 240 to generate an appropriate OSD based on the information of the image signal received by the image processor 220 and the resolution of the image signal to be output Can be controlled.

According to the embodiment, when the OSD is displayed together with enlarging the content only in the left and right directions. Horizontal zooming of the contents, and the OSD can be mixed with the contents and displayed without any additional reduction or enlargement processing.

On the other hand, the audio processing unit (not shown) in the control unit 170 can perform the audio processing of the demultiplexed audio signal. To this end, the voice processing unit (not shown) may include various decoders.

In addition, the audio processing unit (not shown) 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.

2B shows a block diagram of a controller 170 according to another embodiment of the present invention. The embodiment of FIG. 2B differs from the embodiment of FIG. 2a in that the mixer 245 is included in the controller 170.

The OSD generation unit 240 generates a reduced OSD under the control of the processor 250 and outputs the reduced OSD to the OSD generation unit 240. The OSD generation unit 240 generates a reduced OSD according to the control of the processor 250, And the OSD and the content mixed in the formatter 176 can be enlarged in the horizontal direction together.

Meanwhile, the block diagram of the controller 170 shown in FIGS. 2A and 2B 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, in the example of FIG. 1, the separately provided frame rate converting unit and the formatter may be provided in the controller 170. The controller 170 may include a mixer for mixing the OSD signal generated by the OSD generator 240 and the decoded video signal processed by the image processor 220, A frame rate conversion unit for converting the frame rate of the image to be outputted or outputting it as it is, and a formatter for changing the format of the 3D image signal or converting the 2D image signal to the 3D image signal.

3 is a diagram illustrating a control method of a remote control apparatus for controlling an image display apparatus according to embodiments of the present invention.

3 (a), it is illustrated that the pointer 205 corresponding to the remote control device 200 is displayed on the display unit 180. As shown in FIG.

The user can move or rotate the remote control device 200 up and down, left and right (Fig. 3 (b)), and back and forth (Fig. 3 (c)). The pointer 205 displayed on the display unit 180 of the video display device corresponds to the movement of the remote control device 200. [ In this remote control device 200, as shown in the figure, since the pointer 205 is moved according to the movement in the 3D space, it can be called a space remote controller.

3B illustrates that when the user moves the remote control device 200 to the left, the pointer 205 displayed on the display unit 180 of the video display device moves to the left correspondingly.

Information on the motion of the remote control device 200 sensed through the sensor of the remote control device 200 is transmitted to the image display device. The image display apparatus can calculate the coordinates of the pointer 205 from the information on the motion of the remote control apparatus 200. [ The image display apparatus can display the pointer 205 so as to correspond to the calculated coordinates.

3C illustrates a case where the user moves the remote control device 200 away from the display unit 180 while the specific button in the remote control device 200 is depressed. Thereby, the selected area in the display unit 180 corresponding to the pointer 205 can be zoomed in and displayed. Conversely, when the user moves the remote control apparatus 200 close to the display unit 180, the selection area within the display unit 180 corresponding to the pointer 205 may be zoomed out and displayed. On the other hand, when the remote control device 200 moves away from the display unit 180, the selected area is zoomed out, and when the remote control device 200 approaches the display unit 180, the selected area may be zoomed in.

On the other hand, when the specific button in the remote control device 200 is pressed, it is possible to exclude recognizing the up, down, left, and right movement. That is, when the remote control device 200 moves away from or approaches the display unit 180, it is not recognized that the up, down, left, and right movements are recognized, and only the forward and backward movements are recognized. Only the pointer 205 is moved in accordance with the upward, downward, leftward, and rightward movement of the remote control device 200 in a state where the specific button in the remote control device 200 is not pressed.

On the other hand, the moving speed and moving direction of the pointer 205 may correspond to the moving speed and moving direction of the remote control device 200.

The pointer in the present specification means an object displayed on the display unit 180 in correspondence with the operation of the remote control device 200. [ Therefore, various shapes of objects other than the arrow shapes shown in the drawings are possible with the pointer 205. [ For example, it can be a concept that includes points, cursors, prompts, thick outlines, and so on. The pointer 205 may be displayed corresponding to a point on a horizontal axis or a vertical axis on the display unit 180 or may be displayed corresponding to a plurality of points such as a line or a surface Do.

4 is an internal block diagram of the interface unit of FIG. 1 and the spatial remote controller of FIG. 3;

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. In this embodiment, the spatial remote controller 301 may include an RF module 321 capable of transmitting and receiving signals to and from the user input 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 user input interface unit 150 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 power waste by interrupting the power supply when the spatial remote controller 301 has not moved 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 user input interface unit 150 of FIG.

The user input interface unit 150 of the image display apparatus 100 includes a wireless communication unit 311 capable of wirelessly transmitting and receiving signals to and from the spatial remote controller 301, And a coordinate value calculation unit 315 that can calculate the value of the coordinate value.

The wireless communication unit 311 can wirelessly transmit and receive signals to and from the spatial remote controller 301 through the RF module 312. And can receive signals transmitted by the spatial remote controller 301 according to the IR communication standard through the IR module 313. [

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 via the wireless communication unit 311 and outputs the coordinate value of the pointer 302 to be displayed on the display unit 180 (x, y) can be calculated.

The transmission signal of the spatial remote controller 301 inputted to the image display apparatus 100 through the user input interface unit 150 is transmitted to the controller 170 of the image display apparatus 100. The control unit 170 can determine the information about the operation of the spatial remote controller 301 and the key operation from the signal transmitted from the spatial remote controller 301 and control the image display apparatus 100 accordingly.

FIG. 5 is a diagram for explaining an operation method of an image display apparatus according to an embodiment of the present invention. Referring to FIG.

Referring to FIG. 5, the display unit 180 of the image display apparatus 100 according to the embodiment of the present invention may have a first aspect ratio. For example, the ratio of transverse (a1) to transverse (b1) may be a ratio of 21 to 9.

On the other hand, the aspect ratio of the image 510 displayed on the display 180 may be a second aspect ratio different from the first aspect ratio. For example, an image having a ratio of a (a2) to a length (b2) of 16 to 9 or a ratio of 4 to 3 can be displayed on the display unit 180.

In this case, an image 510 having an aspect ratio different from the aspect ratio of the display unit 180 and an aspect ratio of a2: b2 may be displayed in a part of the display unit 180 as shown in FIG. The image 510 may be displayed on the center of the display unit 180 and the screen may include a region 520 on which images are not displayed on the left and right sides of the region where the image 510 is displayed.

On the other hand, the area where the content is not displayed can be processed in a pillar box. When the aspect ratios of the image and the display unit 180 are different, it is possible to insert an invalid image in the top and bottom or right and left sides of the image to match the aspect ratio.

The images inserted above and below are called a letter box (Letter box), and the images inserted on the left and right sides are called pillar boxes.

Thereafter, when a predetermined command such as a menu display command of the user is received, or when an event depending on the reservation setting, specific contents and operation occurs, the image 510 is moved and displayed, and the other area 520 of the display OSD, menu or other information.

That is, a predetermined area of the display unit 180 is used as a live broadcasting area and a live content area. For example, while another area of the display unit 180 displays a menu or a function menu area Various functions of the image display apparatus can be performed. It can also be used as an input window.

Therefore, while watching real-time broadcasting or contents, it is possible to perform a menu or a function desired by the user using another area.

The OSD display event, the video communication request event from the network connected party, and the content registered as the preferred content when pointing to a predetermined area of the video display device 100 by the remote control 301 May be variously set according to the preference of the user, for example, in the case of being detected by the channel browsing processor or the like.

The image 510 displayed on the display unit 180 may be a received broadcast image, an input external input image, or an image stored in the storage unit 140.

Meanwhile, the image display apparatus according to an embodiment of the present invention may support various zoom functions.

For example, an image can be scaled at a first aspect ratio. In other words, the input image can be enlarged as a whole according to the aspect ratio of the display unit 180.

Alternatively, horizontal scaling that scales only the horizontal component can be performed while leaving the vertical component of the image as it is.

FIG. 6 is a flowchart illustrating an operation method of an image display apparatus according to an exemplary embodiment of the present invention, and FIGS. 7 and 8 are diagrams for describing an operation method of an image display apparatus according to an exemplary embodiment of the present invention .

First, an image 721 having a second aspect ratio different from the first aspect ratio of the display unit 180 can be received (S610)

7, when the display unit 180 has an aspect ratio of 21: 9, the control unit 170 displays the image 721 having horizontal and vertical resolutions of 1920 and 1080, which are different from the aspect ratio of the display unit 180, Lt; / RTI > This image 721 may have an aspect ratio of 16: 9.

The control unit 170 may receive a broadcast image, an input external input image, or an image stored in the storage unit 140. In this case, the received image may be a second aspect ratio different from the first aspect ratio of the display 180.

On the other hand, when the received image has the first aspect ratio, the controller 170 can control the received image to be displayed on the display unit 180 as it is.

Meanwhile, the horizontal ratio of the second aspect ratio may be smaller than the horizontal ratio of the first aspect ratio. For example, the first aspect ratio may be 21: 9. The second aspect ratio may be an aspect ratio of 16: 9.

Next, the control unit 170 generates an OSD (S620).

For example, when there is a channel information display input during the broadcast video display, the control unit 170 can generate an OSD for display of channel information and the like.

As another example, if there is a predetermined menu or widget display input during a predetermined video display, an OSD related to various menus or widgets and the like may be generated.

On the other hand, the control unit 170 can generate the OSD 722 in consideration of the screen ratio of the received image and the screen ratio of the display unit.

7 illustrates an example in which the OSD 722 has resolutions of 480 and 1080. FIG.

The OSD generation unit 240 in the control unit 170 may generate the OSD.

The control unit 170 decodes the received image of the second aspect ratio by the image processing unit 220 or performs scaling so as to be suitable for being displayed on the display unit 180 while maintaining the second aspect ratio.

When the OSD is displayed together with the inputted image, the controller 170 scales the image of the second aspect ratio to the third aspect ratio based on the aspect ratio of the OSD (S630)

Here, the horizontal ratio of the scaled third aspect ratio may be smaller than the horizontal ratio of the second aspect ratio. That is, considering the merging of the OSDs, the size of the image is reduced.

In addition, the controller 170 can reduce only the horizontal component while maintaining the vertical component of the received image.

The control unit 170 scales the image 721 having the second aspect ratio to the third aspect ratio based on the aspect ratio of the OSD 722. [

As shown in FIG. 7, the image 732 scaled by the third aspect ratio may be an image obtained by reducing the image 721 of the second aspect ratio only in the horizontal direction.

On the other hand, according to the embodiment, when the OSD and the image come together, the received image and the generated OSD can be transmitted by 75% horizontal scaling.

 That is, in many cases, the OSD is set to be generated in a predetermined size, so that the OSD can be generated in a predetermined size and the OSD can be horizontally scaled. Both video and OSD can then be represented in the 1920 and 1080 video windows.

Thereafter, the controller 170 mixes and merges the OSD 722 and the image 723 scaled in the third aspect ratio (operation S640)

The control unit 170 may mix the mixed OSD and the image 724 to have the second aspect ratio. That is, the mixed OSD and image 724 may have the same resolution of the received image 721, 1920 and 1080, and the same aspect ratio of 16: 9.

7, the controller 170 may mix the OSD 722 with the mixed OSD and the image 724 such that the OSD 722 is positioned on the side of the image 723 scaled by the third aspect ratio.

Meanwhile, the mixing may be performed in the mixer 245 of the controller 170.

Thereafter, the mixed OSD and the image are output (S650)

The control unit 170 decodes the image by the image processing unit 220 or scales the image to be displayed on the display unit 180. [ Then, the video-processed image can be output to the outside. Specifically, as shown in Fig. 1, the frame rate converter 175 can output the frame rate. At this time, the output video signal may be output as, for example, a low voltage differential signaling (LVDS) of 60 Hz or mini-LVDS.

Meanwhile, the output mixed OSD and image may be input to the scaler 710. The scaler 710 may be configured as a part of the formatter 176 described above, or may be separately provided.

Next, the mixed OSD and the image are scaled by the first aspect ratio (S660)

For example, if the first aspect ratio is 21 to 9, and the second aspect ratio is 16: 9, the scaler 710 sets the horizontal component of the image so that the horizontal ratio of the mixed image 731 increases, (Horizontal component + 5). Thereby, the image of the second aspect ratio is scaled by the first aspect ratio.

As another example, when the first aspect ratio is 21 to 9 and the second aspect ratio is 4: 3, the scaler 710 scales only the horizontal component of the image (horizontal component + 9). Thereby, the image of the second aspect ratio is scaled by the first aspect ratio.

On the other hand, such horizontal scaling can be performed by interpolating only the horizontal component of the image.

The scaler 710 scales an image among the mixed OSD and the image to have the second aspect ratio.

Referring to FIG. 7, in the image 732 scaled by the first aspect ratio, the resolution of the image portion excluding the OSD is 1920 and 1080, and the aspect ratio is 16: 9. That is, an image displayed at an aspect ratio of 21: 9 in the display unit 180 is an image restored to a screen ratio of the received image, and the OSD may be disposed on one side of the image.

The scaler 710 performs scaling with a first aspect ratio and outputs a scaled image signal having a first aspect ratio to the display unit 180. [

Accordingly, according to an embodiment of the present invention, a 16: 9 image is displayed in a 16: 9 size in an image display device having a display unit 180 having a 21: 9 aspect ratio, and an OSD is implemented in a remaining area, It is possible to display the image and the OSD without distorting the image.

Meanwhile, in an embodiment of the present invention, the video window of the front-end controller 170 is 1920 * 1080 @ 60 Hz and can handle various scaling and V-scaling for 21: 9 .

In addition, the video window of the rear stage scaler 710 is 2560 * 1080 @ 60 Hz, and only H-scaling can be performed accurately and quickly.

On the other hand, when the OSD is not displayed, the OSD can be displayed on the display unit 180 while maintaining the aspect ratio of the received image without scaling as shown in FIG. In the case of displaying only images of resolutions of 1920 and 1080, the video data is not manipulated in the rear stage scaler 710

In this case, the area where the image is not displayed may be processed in a pillar box. When the display ratio of the display unit 180 is different from that of the display unit 180, it is possible to insert an invalid image in the upper and lower or left and right sides of the image to match the aspect ratio.

FIG. 9 is a flowchart illustrating an operation method of an image display apparatus according to an embodiment of the present invention, and FIG. 10 is a diagram illustrating an operation method of an image display apparatus according to an exemplary embodiment of the present invention.

An operation method of an image display apparatus according to an embodiment of the present invention first receives a signal including a picture and a letter box (S910)

Here, the signal may be a video signal having a second aspect ratio different from the first aspect ratio of the display unit 180. [ For example, when the display unit 180 has an aspect ratio of 21: 9, the resolution of the image and the letter box may be 1920 and 1080, and the aspect ratio may be 16: 9.

10A, the second aspect ratio, that is, the full-screen ratio of the received video signal 1010 may have an aspect ratio of a3: b3, The aspect ratio of the image may have an aspect ratio of a4: b4.

In FIG. 10, a3, b3, a4 and b4 are used for explaining the proportional relationship and do not mean the length itself.

On the other hand, the image portion included in the signal except for the letterbox portion may be the same as the aspect ratio of the display portion 180. [ For example, an image portion included in a signal other than a letter box portion may have an aspect ratio of 21: 9.

Thereafter, the image excluding the letterbox portion is extracted from the signal (S920)

The extraction of the image may be implemented in various ways.

For example, the controller 170 can extract a signal of an image area after discriminating a non-image area.

The control unit 170 determines an edge where an average pixel value of a predetermined line of the input image rapidly decreases or increases.

The control unit 170 counts the number of lines determined as edges and, when the number is greater than or equal to a predetermined number, determines the boundary between the non-signal region and the image region in which the actual image is displayed, and then stores the position information on the line on which a predetermined number or more of edges are determined . Since the line of the input image in which a predetermined number of edges or more are detected is likely to be the boundary between the non-signal region and the image region in which the image is displayed, a predetermined number or more of edges This position can be determined as the non-signal region.

When the position of the line determined by the edge is detected more than the predetermined number of times, the control section 170 determines the position of this line as the boundary of the non-signal region. That is, one area of the line determined as an edge is determined as a non-signal area, and the other area is determined as an image area.

Alternatively, it is possible to detect the non-signal region boundary by calculating the information amount and the non-signal region boundary value using the decoding information in the input image having the non-signal region, and various other methods may be used.

Thereafter, the extracted image is vertically enlarged (S930)

The controller 170 may V-scale the extracted image only in the vertical direction and enlarge the extracted image only in the vertical direction.

The vertically enlarged image may have a second aspect ratio.

Referring to FIG. 10B, the extracted image may be enlarged to have the same aspect ratio as a3: b3 in the full-screen ratio of the received video signal 1010. FIG.

Thereafter, the scaler 710 horizontally enlarges the vertically enlarged image to the first aspect ratio (S930)

The scaler 710 may H-scale the vertically enlarged image only in the horizontal direction, and enlarge the vertically enlarged image only in the horizontal direction.

Thereafter, the display unit 180 may display the horizontally enlarged image.

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:
200: remote control device

Claims (20)

[Claim 1 has been abandoned due to the registration fee.] A method of operating an image display apparatus for displaying an image on a display unit of a first aspect ratio,
Receiving an image of a second aspect ratio;
Generating an OSD based on a predetermined information display command input;
Scaling the image of the second aspect ratio to a third aspect ratio based on the aspect ratio of the OSD;
Mixing the OSD and the image scaled by the third aspect ratio;
Outputting the mixed OSD and an image; And
And scaling the mixed OSD and the image with the first aspect ratio. [Claim 2 is abandoned upon payment of the registration fee.] The method according to claim 1,
Wherein the horizontal ratio of the third aspect ratio is smaller than the horizontal ratio of the second aspect ratio. [Claim 3 is abandoned upon payment of the registration fee.] The method according to claim 1,
Wherein the mixing step comprises:
And mixing the mixed OSD and the image so as to have the second aspect ratio. [Claim 4 is abandoned upon payment of the registration fee.] The method according to claim 1,
Wherein the mixing step comprises:
And mixes the OSD so that the OSD is positioned on a side of an image scaled by the third aspect ratio. [Claim 5 is abandoned upon payment of registration fee.] The method according to claim 1,
Wherein scaling by the first aspect ratio comprises:
And scaling the image among the mixed OSD and the image so as to have the second aspect ratio. [Claim 6 is abandoned due to the registration fee.] The method according to claim 1,
Wherein the horizontal ratio of the second aspect ratio is smaller than the horizontal ratio of the first aspect ratio. [7] has been abandoned due to the registration fee. The method according to claim 1,
Wherein the first aspect ratio is 21: 9. [8] has been abandoned due to the registration fee. The method according to claim 1,
Wherein the second aspect ratio is an aspect ratio of 16: 9. delete delete delete delete A display unit having a first aspect ratio;
(OSD) based on an input of a predetermined information display command, scaling an image of the second aspect ratio to a third aspect ratio on the basis of the aspect ratio of the OSD, receiving the image of the second aspect ratio, a control unit for scaling the OSD and an image scaled by the third aspect ratio; And
And a scaler for scaling the mixed OSD and the image with the first aspect ratio. 14. The method of claim 13,
Wherein,
An image processor receiving the image of the second aspect ratio and scaling the image of the second aspect ratio at the third aspect ratio;
An OSD generating unit for generating the OSD; And
And a mixer for mixing the OSD and the image scaled by the third aspect ratio. 14. The method of claim 13,
Wherein,
And mixes the mixed OSD and video so as to have the second aspect ratio. 14. The method of claim 13,
Wherein,
And mixes the OSD so that the OSD is positioned on a side of an image scaled by the third aspect ratio. 14. The method of claim 13,
The scaler comprising:
And scales the image among the mixed OSD and the image so as to have the second aspect ratio. 14. The method of claim 13,
Wherein the horizontal ratio of the second aspect ratio is smaller than the horizontal ratio of the first aspect ratio. 14. The method of claim 13,
Wherein the first aspect ratio is 21: 9. 14. The method of claim 13,
Wherein the second aspect ratio is a 16: 9 aspect ratio.

Images