KR20120132098A - Method for operating an apparatus for displaying image - Google Patents

Abstract

PURPOSE: A method for operating an image display device is provided to select the screen size or ratio of contents according to the taste of a user. CONSTITUTION: A control unit receives an image of a second screen ratio. The control unit generates an OSD(On Screen Display). The control unit scales an image having the second screen ratio in a third screen ratio based on the screen ratio of the OSD. The control unit mixes the OSD and the scaled image of the third screen ratio. The control unit outputs the mixed OSD and an image. The control unit scales the mixed OSD and the image in the first screen ratio.

Description

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

The present invention relates to a method of operating an image display device, and more particularly, to a method of operating an image display device in which user convenience is increased.

The image display device is a device having a function of displaying an image that a user can watch. 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, interactive services have become possible.

In addition, as the functions and contents of the image display apparatus are diversified, the screen arrangement, the screen switching method, the contents usage method, etc., which are optimized for efficiently utilizing various functions and contents of the image display apparatus, have been studied. .

Accordingly, an object of the present invention is to provide a method of operating an image display apparatus which can increase user convenience by implementing screen layout and screen switching optimized for content use.

In an operating method of an image display apparatus according to an embodiment of the present invention, the method of operating an image display apparatus displaying an image on a display unit having a first aspect ratio comprises: receiving an image having a second aspect ratio, OSD), scaling the image of the second aspect ratio to the third aspect ratio based on the aspect ratio of the OSD, mixing the scaled image with the OSD and the third aspect ratio Outputting the mixed OSD and the image; and scaling the mixed OSD and the image at a first aspect ratio.

A method of operating an image display apparatus according to an embodiment of the present invention is a method of operating an image display apparatus that displays an image on a display unit having a first aspect ratio, and receives a signal including an image and a letter box. And extracting an image, vertically enlarging the extracted image, and horizontally enlarging the vertically enlarged image at a first aspect ratio.

According to an embodiment of the present invention, an image display apparatus includes a display unit having a first aspect ratio, an image having a second aspect ratio, generating an OSD, and a second screen based on an aspect ratio of an OSD. And scaling a scaled image at a third aspect ratio, a controller for mixing the OSD and the scaled image at a third aspect ratio, and a scaler for scaling the mixed OSD and the image at a first aspect ratio. .

According to the present invention, the aspect ratio and the display size of the content can be selected according to the user's preference. Therefore, the content can be used more conveniently, and the user can have fun.

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 controller 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 some of the interface unit of FIG. 1 and the remote control apparatus of FIG. 3.
FIG. 5 is a diagram referred to for describing a method of operating an image display apparatus according to an exemplary embodiment.
6 is a flowchart illustrating a method of operating an image display apparatus according to an embodiment of the present invention.
7 and 8 are views for explaining an operating method of an image display apparatus according to an embodiment of the present invention.
9 is a flowchart illustrating a method of operating an image display apparatus according to an embodiment of the present invention.
FIG. 10 is a diagram referred to for describing a method of operating an image display apparatus according to an exemplary embodiment.

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

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.

Referring to FIG. 1, the image display apparatus 100 according to an exemplary embodiment of the present invention includes a tuner 110, a demodulator 120, an external device interface unit 130, a network interface unit 135, and a storage unit ( 140, a user input interface unit 150, a controller unit 170, a display unit 180, an audio output unit 185, and a power supply unit 190 may be included. In addition, the channel browsing processor 160 may be further included.

Also, the image display apparatus 100 according to an embodiment of the present invention may further include a frame rate converter 175 and a formatter 176, and the frame rate converter 175 and the formatter 176 may be implemented. In some cases, the controller 170 may be included in the controller 170.

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

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

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

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

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

For example, when the digital IF signal output from the tuner 110 is 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. In this case, the stream signal may be a signal multiplexed with a video signal, an audio signal, or a data signal. For example, the stream signal may be an MPEG-2 TS (Transport Stream) multiplexed with an MPEG-2 standard video signal, a Dolby AC-3 standard audio signal, or the like. Specifically, the MPEG-2 TS may include a header of 4 bytes and a payload of 184 bytes.

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

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

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

The external device interface unit 130 may be connected to an external device such as a digital versatile disk (DVD), a Blu-ray, a game device, a camera, a camcorder, a computer (laptop), or the like by wire / wireless. The external device interface unit 130 transmits an image, audio or data signal input from the outside to the controller 170 of the image display device 100 through a connected external device. In addition, the controller 170 may output an image, audio, or data signal processed by the controller 170 to a connected external device. To this end, the external device interface unit 130 may include an A / V input / output unit (not shown) or a wireless communication unit (not shown).

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

The wireless communication unit can perform short-range wireless communication with other electronic devices. The image display device 100 may be connected to other electronic devices and networks according to communication standards such as Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, etc. Can be connected.

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

The external device interface unit 130 may transmit / receive data with the 3D additional display 195.

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

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

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

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

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

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

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

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

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

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

In addition, for example, the user input interface unit 150 may transmit a user input signal input from a local key (not shown) such as a power key, a channel key, a volume key, and a set value to the controller 170.

In addition, for example, the user input interface unit 150 may transmit a user input signal input from a sensing unit (not shown) that senses a user's gesture to the controller 170 or may transmit a signal from the controller 170. The transmission may be transmitted to a sensing unit (not shown). Here, the sensing unit (not shown) may include a touch sensor, an audio sensor, a position sensor, an operation sensor, and the like.

The controller 170 demultiplexes the input stream or processes the demultiplexed signals through the tuner 110, the demodulator 120, or the external device interface unit 130, and outputs a video or audio signal. You can create and output.

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

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

The frame rate converter (FRC) may convert a frame rate of an input video. For example, a 60Hz frame rate is converted to 120Hz or 240Hz. When converting a frame rate of 60 Hz to 120 Hz, it is possible to insert the same first frame or insert a third frame predicted from the first frame and the second frame between 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 three predicted frames.

On the other hand, the frame rate converter 175 may output the signal as it is without additional frame rate conversion.

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

In addition, scaling of the image signal may be performed so that the resolution and size of the image displayed on the display unit 180 may be varied.

On the other hand, in the zoom mode in which the image display apparatus 100 enlarges the size at which the image is displayed while maintaining the resolution of the image signal, the image is displayed only in the left and right directions (horizontal direction) without enlarging the image in the vertical direction. The controller 170 may control the formatter 176, the display unit 180, and the like to support various magnification modes such as a horizontal zoom mode for enlarging the displayed size.

In addition, the formatter 176 may receive an OSD signal and a video signal, and may separate the 2D video signal and the 3D video signal. The formatter 176 may change the format of the 3D video signal, and may convert the 2D video signal into a 3D video signal. For example, an edge or selectable object may be detected within the 2D image signal according to a 3D image generation algorithm, and an object or selectable object according to the detected edge may be separated into a 3D image signal and generated. Can be. In this case, the generated 3D image signal may be separated into a left eye image signal L and a right eye image signal R.

According to an exemplary embodiment, the formatter 176 may include a mixer for mixing the OSD signal generated by the OSD generator and the decoded image signal processed by the image processor, and the resolution and size of the image displayed on the display 180. And a scaler that performs scaling of the video signal so as to be variable.

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

On the other hand, each component of the above-described control unit 170 may be integrated, added, or omitted according to the specifications of the control unit 170 is actually implemented.

In addition, the controller 170 may control overall operations of the image display apparatus 100. For example, the controller 170 may control the tuner 110 to control the tuner 110 to select an RF broadcast corresponding to a channel selected by a user or a pre-stored channel.

In addition, the controller 170 may control the image display apparatus 100 by a user command or an internal program input through the user input interface unit 150.

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

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

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

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

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

Such a 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 protrude compared to the image displayed on the display unit 180.

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

On the other hand, the channel browsing processor 160 for generating a thumbnail image corresponding to the channel signal or the external input signal may be further provided.

The channel browsing processor 160 receives the stream signal TS output from the demodulator 130 or the stream signal output from the external device interface unit 130, extracts an image from the input stream signal, and displays a thumbnail image. Can be generated. The generated thumbnail image may be input as it is or encoded to the controller 170. In addition, the generated thumbnail image may be encoded in a stream form and input to the controller 170. The controller 170 may display a thumbnail list including a plurality of thumbnail images on the display unit 180 by using the input thumbnail image.

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

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

For viewing the 3D image, the display unit 180 may be divided into an additional display method and a single display method.

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

Meanwhile, the additional display method may implement a 3D image by using an additional display in addition to the display unit 180. For example, various methods such as a head mounted display (HMD) type and glasses type may be applied. In addition, the spectacle type may be further divided into a passive method such as a polarized glasses type and an active method such as a shutter glass type. On the other hand, the head mounted display type can be divided into passive and active methods.

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 a screen, and a touch signal generated when a human hand or an object such as a stylus pen touches the screen at a specific object or location on the screen. The control unit may perform a corresponding operation by transferring the to the control unit. In addition, touch input may be performed by an object other than a fingertip and a stylus pen.

The touch screen may be implemented in various ways, such as capacitive and positive pressure, and the present invention is not limited to the implementation 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 can detect the presence or absence of an approaching object or an object present in the vicinity without mechanical contact. The proximity sensor can detect a proximity object by using a change in an alternating magnetic field or a change in a static magnetic field, or by using a change rate of capacitance.

The touch sensor may be a touch screen constituting the display unit 180. The touch sensor may sense a position or strength of the user's touch on the touch screen. The voice sensor may sense a user voice or various sounds generated by the user. The location sensor may sense the location of the user. The motion sensor may sense a gesture motion of the user. The position sensor or the motion sensor may be configured as an infrared sensor or a camera, and may sense a distance between the image display apparatus 100 and the user, whether the user moves, the user's hand movement, the user's key, and the user's eye height. Can be.

Each sensor described above transmits a result of sensing a user's voice, touch, location, and motion to a separate sensing signal processor (not shown), or first interprets the sensing result and generates a corresponding sensing signal to control the controller. It can be entered at 170.

In addition to the above-described sensor, the sensor unit includes various types of sensors capable of sensing the distance between the image display apparatus 100 and the user, the presence or absence of the user's movement, the user's hand movement, the user's key, the user's eye height, and the like. can do.

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

The controller 170 may detect a user's gesture by combining or combining an image captured by a photographing unit (not shown) or a detected signal from a sensor unit (not shown).

The audio output unit 185 receives a signal processed by the controller 170, for example, a stereo signal, a 3.1 channel signal, or a 5.1 channel signal, and outputs a voice signal. The 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. In particular, power may be supplied to the controller 170, which may 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. Can be. In addition, according to the exemplary embodiment, power may be supplied to a heat generating unit including a heating wire.

The remote control apparatus 200 transmits the user input to the user input interface unit 150. To this end, the remote control device 200 may use infrared (IR) communication, RF (Radio Frequency) communication, Bluetooth (Bluetooth), UWB (Ultra Wideband), ZigBee (ZigBee) method and the like. In addition, the remote control apparatus 200 may receive an image, an audio or a data signal output from the user input interface unit 150, and display or output the audio from the remote control apparatus 200.

The video display device 100 described above is a fixed type of ATSC (8-VSB) digital broadcasting, DVB-T (COFDM) digital broadcasting, ISDB-T (BST-OFDM) digital broadcasting, and the like. It may be a digital broadcast receiver capable of receiving at least one. In addition, as a mobile type, digital broadcasting of terrestrial DMB system, digital broadcasting of satellite DMB system, digital broadcasting of ATSC-M / H system, digital broadcasting of DVB-H system (COFDM system) and media flow link only system It may be a digital broadcast receiver capable of receiving at least one of digital broadcasts. It may also be a digital broadcast receiver for cable, satellite communications, or IPTV.

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

Meanwhile, a block diagram of the image display apparatus 100 shown in FIG. 1 is a block diagram for an embodiment of the present invention. Each component of the block diagram may be integrated, added, or omitted according to the specifications of the image display apparatus 100 that is actually implemented. That is, two or more constituent elements may be combined into one constituent element, or one constituent element may be constituted by two or more constituent elements, if necessary. In addition, the functions performed in each block are intended to illustrate the embodiments of the present invention, and the specific operations and apparatuses do not limit the scope of the present invention.

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

Referring to FIG. 2A, the controller 170 according to an embodiment of the present invention may include a demultiplexer 210, an image processor 220, an OSD generator 240, and a processor 250. have. In addition, the apparatus may further include a voice processor (not shown) and a data processor (not shown).

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

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

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

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

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

The processor 250 may control the overall operation of the controller 170. For example, the processor 250 may include an image processor 220 and an OSD generator 240 so that an appropriate OSD may be generated based on information such as the image signal received by the image processor 220 and the resolution of the output image signal. ) Can be controlled.

In some embodiments, the OSD is displayed together while the content is enlarged only in the left and right directions. The horizontal zoom of the content is performed, and the OSD may only be displayed by mixing with the content without further reducing or enlarging.

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

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

The data processor (not shown) in the controller 170 may perform data processing of the demultiplexed data signal. For example, when the demultiplexed data signal is an encoded data signal, it may be decoded. The encoded data signal may be EPG (Electronic Progtam Guide) information including broadcast information such as a start time and an end time of a broadcast program broadcasted in each channel.

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

According to an embodiment, when the OSD is displayed together while the contents are enlarged only in the left and right directions, the OSD generator 240 generates a reduced OSD under the control of the processor 250 and reduces the size in the mixer 245. The mixed OSD and the content may be mixed, and the OSD and the content mixed in the formatter 176 may be enlarged in the left and right directions together.

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

In particular, in the example of FIG. 1, a frame rate converter and a formatter separately provided may be provided in the controller 170. According to an embodiment, the control unit 170 according to an embodiment of the present invention is a mixer for mixing the OSD signal generated by the OSD generator 240 and the decoded image signal processed by the image processor 220, an input, The apparatus may include a frame rate converter for converting or outputting a frame rate of a video to be output, and a formatter for changing a format of a 3D video signal or converting a 2D video signal into a 3D video 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.

As illustrated in FIG. 3A, a pointer 205 corresponding to the remote control apparatus 200 is displayed on the display unit 180.

The user can move or rotate the remote control device 200 up and down, left and right (FIG. 3 (b)), front and rear (FIG. 3 (c)). The pointer 205 displayed on the display unit 180 of the image display device corresponds to the movement of the remote controller 200. The remote control apparatus 200 may be referred to as a spatial remote controller because the pointer 205 is moved and displayed according to the movement in the 3D space as shown in the figure.

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

Information about the movement of the remote control device 200 detected through the sensor of the remote control device 200 is transmitted to the image display device. The image display device may calculate the coordinates of the pointer 205 from the information about the movement of the remote controller 200. The image display device may display the pointer 205 to correspond to the calculated coordinates.

3C illustrates a case in which the user moves the remote control apparatus 200 away from the display unit 180 while pressing a specific button in the remote control apparatus 200. As a result, the selection area in the display unit 180 corresponding to the pointer 205 may be zoomed in to be enlarged and displayed. On the contrary, when the user moves the remote controller 200 to be closer to the display unit 180, the selection area in the display unit 180 corresponding to the pointer 205 may be zoomed out and reduced. On the other hand, when the remote control apparatus 200 moves away from the display unit 180, the selection area is zoomed out, and when the remote control apparatus 200 approaches the display unit 180, the selection area may be zoomed in.

On the other hand, while pressing a specific button in the remote control device 200 can recognize the up, down, left and right movement. That is, when the remote control apparatus 200 moves away from or approaches the display unit 180, the up, down, left, and right movements are not recognized, and only the front and back movements may be recognized. In a state where a specific button in the remote controller 200 is not pressed, only the pointer 205 moves according to the up, down, left, and right movements of the remote controller 200.

Meanwhile, the moving speed or the moving direction of the pointer 205 may correspond to the moving speed or the moving direction of the remote control apparatus 200.

The pointer in the present specification refers to an object displayed on the display unit 180 in response to the operation of the remote control apparatus 200. Thus, the pointer 205 may be an object of various shapes in addition to the arrow shape shown in the drawing. For example, the concept may include a point, a cursor, a prompt, a thick outline, and the like. In addition, the pointer 205 may be displayed corresponding to any one of the horizontal axis and the vertical axis of the display unit 180, or may be displayed corresponding to a plurality of points such as a line and a surface. Do.

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

Referring to the drawings, the spatial 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, and a control unit. 380 may include.

The wireless communication unit 320 transmits and receives a signal with the image display device 100. In the present embodiment, the spatial remote controller 301 may include an RF module 321 capable of transmitting and receiving a signal with the user input interface unit 150 of the image display apparatus 100 according to the RF communication standard. In addition, the spatial remote controller 301 may include an IR module 323 capable of transmitting and receiving a signal with the user input interface unit 150 of the image display apparatus 100 according to an IR communication standard.

In the present embodiment, the spatial remote controller 301 transmits a signal containing information about the operation of the spatial remote controller 301 to the image display apparatus 100 through the RF module 321. In addition, the spatial remote controller 301 may receive a signal transmitted from the image display apparatus 100 through the RF module 321. In addition, the spatial remote controller 301 may transmit a command regarding power on / off, channel change, volume change, etc. to the image display device 100 through the IR module 323 as necessary.

The user input unit 330 may be configured as a keypad or a button. The user may input a command related to the image display apparatus 100 to the spatial remote controller 301 by manipulating the user input unit 330. When the user input unit 330 includes a hard key button, the user may input a command related to the image display apparatus 100 to the spatial remote controller 301 through a push operation of the hard key button. When the user input unit 330 includes a touch screen, the user may input a command related to the image display apparatus 100 to the spatial remote controller 301 by touching a soft key of the touch screen. In addition, the user input unit 330 may include various kinds of input means that the user can operate, such as a scroll key or a jog key, and the present embodiment does not limit 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 may sense information about an operation of the spatial remote controller 301. For example, the gyro sensor 341 may sense information about an operation of the spatial remote controller 301 based on the x, y, and z axes. The acceleration sensor 341 may sense information about a moving speed of the spatial remote controller 301. The output unit 350 may output an image or audio signal corresponding to a manipulation or a signal transmitted from the image display apparatus 100 to the user input unit 330. The user may recognize whether the user input unit 330 is manipulated or whether the image display apparatus 100 is controlled through the output unit 350.

For example, the output unit 350 may include a LED module 351 which is turned on when the user input unit 330 is manipulated or a signal is transmitted and received with the image display device 100 through the wireless communication unit 320, and a vibration module generating vibration. 353), an audio output module 355 for outputting audio or a display module 357 for outputting an image may be provided.

The power supply unit 360 supplies power to the space remote controller 301. The power supply unit 360 may reduce power waste by stopping power supply when the space remote controller 301 does not move for a predetermined time. The power supply unit 360 may resume power supply when a predetermined key included in the space remote controller 301 is operated.

The memory 370 may store various types of application data required for controlling or operating the spatial remote controller 301. If the spatial remote controller 301 transmits and receives a signal wirelessly through the image display apparatus 100 and the RF module 321, the spatial remote controller 301 and the image display apparatus 100 transmit and receive signals through a predetermined frequency band. . The controller 380 of the spatial remote controller 301 stores information on a frequency band or the like that can transmit and receive a signal wirelessly with the image display apparatus 100 paired with the spatial remote controller 301 in the memory 370. Reference may be made.

The controller 380 controls various items related to the control of the spatial remote controller 301. The controller 380 may receive a signal corresponding to a predetermined key operation of the user input unit 330 or a signal corresponding to an operation of the spatial remote controller 301 sensed by the sensor unit 340 through the wireless communication unit 320. 100 may be transmitted to the user input interface unit 150 of FIG.

The user input interface unit 150 of the image display apparatus 100 may include a wireless communication unit 311 capable of transmitting and receiving a signal wirelessly with the spatial remote controller 301, and coordinates of a pointer corresponding to an operation of the spatial remote controller 301. A coordinate value calculator 315 capable of calculating a value may be provided.

The wireless communication unit 311 may transmit and receive a signal wirelessly with the spatial remote controller 301 through the RF module 312. In addition, through the IR module 313, the spatial remote controller 301 may receive a signal transmitted according to the IR communication standard.

The coordinate value calculator 315 corrects a hand shake or an error from a signal corresponding to the operation of the spatial remote controller 301 received through the wireless communication unit 311 to display the coordinate value of the pointer 302 to be displayed on the display unit 180. (x, y) can be calculated.

In addition, the spatial remote controller 301 transmission signal input 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 controller 170 may determine the information on the operation and the key operation of the spatial remote controller 301 from the signal transmitted from the spatial remote controller 301 and control the image display apparatus 100 accordingly.

FIG. 5 is a diagram referred to for describing a method of operating an image display apparatus according to an exemplary embodiment.

Referring to FIG. 5, the display unit 180 of the image display apparatus 100 according to an exemplary embodiment may have a first aspect ratio. For example, the ratio of the width a1 to the length b1 may be a ratio of 21 to 9.

Meanwhile, 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 width a2 to length b2 having a ratio of 16 to 9 or a ratio of 4 to 3 may be displayed on the display unit 180.

In this case, an image 510 having an aspect ratio different from that of the display unit 180 and an aspect ratio of a2: b2 may be displayed in a partial region of the display unit 180 as shown in FIG. 5. The image 510 may be displayed centering on the center of the display unit 180, and the screen may include a region 520 in which no image is displayed on the left and right sides of the region where the image 510 is displayed.

Meanwhile, an area in which content is not displayed may be pillar boxed. When the aspect ratio of the image is different from that of the display unit 180, an invalid image may be inserted at the top, bottom, left, and right sides of the image to match the aspect ratio.

The images inserted above and below are called a letter box, and the images inserted to the left and right are called a pillar box.

Subsequently, when a predetermined command such as a user's menu view command is received, or an event depending on a reservation setting, specific content, and operation occurs, the image 510 is moved and displayed, and various other areas 520 are displayed on the display unit. The OSD, menu or other information can be displayed.

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

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

Meanwhile, the event dependent on the specific content and operation may include an OSD display event, a video communication request event from a network-connected counterpart, and a content registered as a preferred content when the spatial remote controller 301 points to a predetermined region of the video display device 100. May be set in various ways according to the user's preference, such as when detected by the channel browsing processing unit.

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

On the other hand, the image display device according to an embodiment of the present invention can support various zoom functions.

For example, the image may be scaled by the first aspect ratio. That is, the input image may be enlarged to match the aspect ratio of the display unit 180 as a whole.

Alternatively, horizontal scaling may be performed to scale only the horizontal component while leaving the vertical component of the image as it is.

6 is a flowchart illustrating a method of operating an image display device according to an embodiment of the present invention, and FIGS. 7 and 8 are views for explaining an operation method of the image display device according to an 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 may be received (S610).

Referring to FIG. 7, when the display unit 180 has an aspect ratio of 21: 9, the controller 170 may display an image 721 having 1920 and 1080 horizontal and vertical resolutions different from those of the display unit 180. Can be received. The image 721 may have an aspect ratio of 16: 9.

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

Meanwhile, when the received image has the first aspect ratio, the controller 170 may control the received image to be displayed on the display unit 180 as it is.

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

Next, the controller 170 generates an OSD (S620).

For example, the controller 170 may generate an OSD for displaying channel information when there is a channel information display input while displaying a broadcast image.

As another example, when there is a menu or widget display input while displaying a predetermined image, OSD related to various menus or widgets may be generated.

The controller 170 may generate the OSD 722 in consideration of the aspect ratio of the received image and the aspect ratio of the display unit.

7 illustrates an example in which the OSD 722 has a resolution of 480 and 1080.

On the other hand, such OSD generation may be performed by the OSD generation unit 240 in the control unit 170.

The controller 170 decodes the received image of the second aspect ratio by the image processor 220 or scales the image to be displayed on the display unit 180 while maintaining the second aspect ratio.

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

Here, the aspect ratio of the scaled third aspect ratio may be smaller than the aspect ratio of the second aspect ratio. That is, the size of the image is reduced in consideration of merging of the OSD.

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

The controller 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 illustrated in FIG. 7, the image 732 scaled to the third aspect ratio may be an image obtained by reducing the image 721 having the second aspect ratio only in the horizontal direction.

In some embodiments, when the OSD and the image come together, both the received image and the generated OSD may be sent with 75% horizontal scaling.

 That is, since the OSD is often set to be generated at a constant size, the generation of the OSD may be performed at the set size, and the OSD may also be horizontally scaled. Thereafter, both the image and the OSD can be represented in a video window of 1920 and 1080.

Thereafter, the controller 170 mixes and merges the OSD 722 with the image 723 scaled to the third aspect ratio (S640).

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

In addition, as shown in FIG. 7, the controller 170 may mix 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.

On the other hand, such mixing may be performed in the mixer 245 of the controller 170.

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

The controller 170 decodes the image in the image processor 220 or performs scaling to be suitable for being displayed on the display 180. The image processed as described above may be output to the outside. Specifically, as illustrated in FIG. 1, the output may be performed to the frame rate converter 175. In this case, the output image 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 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, when the first aspect ratio is 21 to 9 and the second aspect ratio is 16: 9, the scaler 710 adjusts the horizontal component of the image such that the aspect ratio of the mixed image 731 is increased. Perform horizontal scaling, scaling only (horizontal component +5). As a result, the image having the second aspect ratio is scaled to 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 so that the aspect ratio of the image increases (horizontal component + 9) to perform horizontal scaling. As a result, the image of the second aspect ratio is scaled to the first aspect ratio.

On the other hand, such horizontal scaling may be performed by interpolating only horizontal components of an image.

The scaler 710 may scale the image to be the second aspect ratio among the mixed OSD and the image.

Referring to FIG. 7, in the image 732 scaled with 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, the image displayed at the aspect ratio of 21: 9 on the display unit 180 may display an image reconstructed at the aspect ratio of the received image, and an OSD may be disposed on one side of the image.

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

Therefore, according to an exemplary 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 the remaining area to display a 21: 9 screen. It can display the image and OSD without distorting, while eliminating the empty space.

Meanwhile, in an embodiment of the present invention, the video window of the controller 170 of the preceding stage is 1920 * 1080 @ 60Hz and may be responsible for various scaling and V-scaling for 21: 9. .

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

On the other hand, when the OSD is not displayed, it may be displayed on the display unit 180 while maintaining the aspect ratio of the received image without going through a scaling process as shown in FIG. 8. In case of showing only the images of resolution 1920 and 1080, the scaler 710 at the rear stage does not perform video data manipulation.

In this case, an area where no image is displayed may be pillar boxed. When the aspect ratio of the image to be displayed is different from that of the display unit 180, an invalid image may be inserted at the top, bottom, left, and right sides of the image to match the aspect ratio.

9 is a flowchart illustrating a method of operating an image display apparatus according to an embodiment of the present invention, and FIG. 10 is a view referred to for explaining an operation method of the image display apparatus according to an embodiment of the present invention.

In the method of operating an image display device according to an embodiment of the present invention, first, a signal including an image and a letter box is received.

The signal may be an image 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, when the image and the letter box are combined, the resolution may be 1920 and 1080, and the aspect ratio may be 16: 9.

Referring to FIG. 10A, the second aspect ratio of the received image signal 1010, that is, the total aspect ratio may have an aspect ratio of a3: b3, except for the letterbox portion 1020. The aspect ratio of the image may have an aspect ratio of a4: b4.

On the other hand, in Figure 10, a3, b3, a4, b4 is for explaining the proportional relationship does not mean the length itself.

Meanwhile, the image portion included in the signal except for the letter box portion may be the same as the aspect ratio of the display unit 180. For example, the image portion included in the signal except for the letterbox portion may have an aspect ratio of 21: 9.

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

Extraction of the image may be implemented in various ways.

For example, after determining the non-image area, the controller 170 may extract a signal of the image area.

The controller 170 determines, as an edge, an area in which a pixel average value of a predetermined line of the input image decreases or increases rapidly.

The controller 170 counts the number of lines determined as edges and determines the boundary between the non-signal area and the video area where the actual image is displayed. . Since a line of the input image in which a predetermined number or more edges are detected is likely to be a boundary between a non-signal region and an image region in which the image is displayed, a predetermined number or more edges are detected at the same position as the stored position information in the continuously input image. If so, this position can be determined as the non-signal area.

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

Alternatively, non-signal area boundary detection can be performed by calculating information amount and non-signal area boundary value using decoding information in an input image having a non-signal area, and various other methods may be used.

Thereafter, the extracted image is vertically enlarged (S930).

The controller 170 may 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 entire aspect ratio of the extracted image signal 1010 may be enlarged to the same aspect ratio as a3: b3.

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

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

Thereafter, the display 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 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 processor-readable recording medium include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like, and may also be implemented in the form of a carrier wave such as transmission over the Internet. . The processor-readable recording medium can also be distributed over network coupled computer systems so that the processor-readable code is stored and executed in a distributed fashion.

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 details may be made therein without departing from the spirit and scope of the present invention.

100: video display device
170:
180: display unit
200: remote control device

Claims (20)

In the operating method of the video display device for displaying an image on the display unit of the first aspect ratio,
Receiving an image having a second aspect ratio;
Generating an 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 an image scaled by the third aspect ratio;
Outputting the mixed OSD and an image; And
And scaling the mixed OSD and the image by the first aspect ratio. The method of claim 1,
And an aspect ratio of the third aspect ratio is smaller than an aspect ratio of the second aspect ratio. The method of claim 1,
Wherein the mixing step comprises:
And operating the mixed OSD so that the image becomes the second aspect ratio. The method of claim 1,
Wherein the mixing step comprises:
And mixing the OSD so that the OSD is positioned at the side of the image scaled by the third aspect ratio. The method of claim 1,
Scaling to the first aspect ratio,
And scaling the image so that the image becomes the second aspect ratio among the mixed OSD and the image. The method of claim 1,
And the aspect ratio of the second aspect ratio is smaller than the aspect ratio of the first aspect ratio. The method of claim 1,
And wherein the first aspect ratio is 21: 9. The method of claim 1,
And the second aspect ratio is a 16: 9 aspect ratio. In the operating method of the video display device for displaying an image on the display unit of the first aspect ratio,
Receiving a signal comprising an image and a letter box;
Extracting the image;
Vertically enlarging the extracted image; And
And horizontally enlarging the vertically magnified image at the first aspect ratio. 10. The method of claim 9,
And the signal is a video signal having a second aspect ratio. 10. The method of claim 9,
And the vertically enlarged image has a second aspect ratio. 10. The method of claim 9,
And displaying the horizontally enlarged image. A display unit having a first aspect ratio;
Receiving an image of a second aspect ratio, generating an OSD, scaling the image of the second aspect ratio to a third aspect ratio based on the aspect ratio of the OSD, and displaying the OSD and the A controller configured to mix an image scaled to a third aspect ratio; And
And a scaler configured to scale the mixed OSD and an image to the first aspect ratio. The method of claim 13,
The control unit,
An image processor which receives the image having the second aspect ratio and scales the image with the third aspect ratio;
An OSD generator for generating the OSD; And
And a mixer for mixing the OSD and the image scaled by the third aspect ratio. The method of claim 13,
The control unit,
And mixing the mixed OSD and the image so as to have the second aspect ratio. The method of claim 13,
The control unit,
And mix the OSD so that the OSD is positioned at a side of the image scaled by the third aspect ratio. The method of claim 13,
The scaler is,
And scaling the image so that the image becomes the second aspect ratio among the mixed OSD and the image. The method of claim 13,
And an aspect ratio of the second aspect ratio is smaller than an aspect ratio of the first aspect ratio. The method of claim 13,
And the first aspect ratio is 21: 9. The method of claim 13,
And the second aspect ratio is 16: 9.

Images