KR20120027815A - Apparatus for displaying image and method for operating the same - Google Patents

Abstract

An operating method of an image display apparatus according to an exemplary embodiment of the present invention includes detecting a tilt of a display or an amount of light by an external light source, setting a quality setting value based on the tilt or light amount, and based on the quality setting value. Displaying an image on the display. Also, by displaying the setting menu window, it can help to apply the optimized settings to the user.
According to the present invention, the content, particularly 3D image can be used more accurately and conveniently, user convenience can be improved, and the screen arrangement, screen switching optimized for the use of content can be implemented.

Description

Apparatus for displaying image and method for operating the same}

The present invention relates to an image display apparatus and a method of operating the same, and more particularly, to an image display apparatus having various and convenient contents, and in particular, to accurately and conveniently use a 3D image, thereby improving user convenience. It relates to a method of operation.

The image display device is a device having a function of displaying an image that a user can watch. In addition, the image display apparatus may 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 broadcasts transmit digital video and audio signals, and are more resistant to external noise than analog broadcasts, and thus have low data loss, are advantageous for error correction, provide high resolution, and provide a clear picture. 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. .

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

Accordingly, an object of the present invention is to provide an image display apparatus and an operation method thereof, by which a user's convenience can be improved by implementing screen layout and screen switching optimized for content use. In particular, the present invention provides an image display apparatus and an operation method thereof, which can accurately and conveniently use a 3D image, and can be optimally displayed for viewing in various directions.

In accordance with an aspect of the present invention, there is provided a method of operating an image display device, the method comprising: detecting an inclination of a display, setting an image quality setting value based on the slope, and displaying the image quality based on the image quality setting value Displaying an image on the screen.

According to another aspect of the present invention, there is provided a method of operating an image display apparatus, the method comprising: detecting an amount of light by an external light source, setting an image quality setting value based on the quantity of light, and based on the image quality setting value Displaying an image on the display.

According to another aspect of the present invention, there is provided a method of operating an image display device, the method comprising: detecting an arrangement state of a display, displaying a setting menu window for setting image quality setting values, Setting an image quality setting value based on a corresponding input, and displaying an image on the display based on the image quality setting value.

In accordance with an aspect of the present invention, an image display device includes a display, a sensor unit for detecting an inclination of the display, and an image quality setting value based on the slope, and the display based on the image quality setting value. It includes a control unit for controlling to display the image.

According to the present invention, the content, particularly 3D image can be used more accurately and conveniently, user convenience can be improved. In addition, it is possible to implement screen layout and screen switching optimized for content use.

1 is an internal block diagram of an image display apparatus according to an embodiment of the present invention.
FIG. 2 is an internal block diagram of the controller of FIG. 1.
3 is a view illustrating an operation of a 3D viewing apparatus according to a frame sequential format.
4 is a diagram illustrating an example of a 3D video signal format capable of implementing 3D video.
5 is a diagram illustrating various scaling methods of a 3D video signal according to an embodiment of the present invention.
6 is a view showing a state in which the depth of the 3D image or 3D object is variable according to an embodiment of the present invention.
7 is a diagram illustrating a state in which a sense of depth of an image or the like is controlled according to an embodiment of the present invention.
8 is a diagram illustrating an example of a display arrangement according to an embodiment of the present invention.
9 is a view referred to for describing a method of operating a 3D viewing apparatus.
10 is a diagram illustrating an image display device and a remote control device according to an embodiment of the present invention.
11A to 13B are views referred to for describing various examples of a method of operating an image display apparatus according to an exemplary embodiment of the present invention.
14 through 16 are flowcharts illustrating a method of operating an image display apparatus according to an exemplary embodiment.
17A to 19C are views referred to for describing a method of operating an image display device according to an exemplary embodiment.

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

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

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

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

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

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

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

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

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

For example, when the digital IF signal output from the tuner 110 is an ATSC scheme, the demodulator 120 performs 7-VSB (7-Vestigal Side Band) demodulation. Also, the demodulation unit 120 may perform channel decoding. To this end, the demodulator 120 includes a trellis decoder, a de-interleaver, and a reed solomon decoder to perform trellis decoding, deinterleaving, Solomon decoding can be performed.

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

The demodulation unit 120 may perform demodulation and channel decoding, and then output a stream signal TS. 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 180 and outputs audio to the audio output unit 185.

The external device interface unit 130 may transmit or receive data with the connected external device 190. To this end, the external device interface unit 130 may include an A / V input / output unit (not shown) or a wireless communication unit (not shown).

The external device interface unit 130 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 the 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 apparatus 100 may communicate with Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, and Digital Living Network Alliance (DLNA). Depending on the specification, it can be networked with other electronic devices.

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 viewing device 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 the Internet, a content provider, etc. 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.

The sensor unit 160 may detect a location of a user, a gesture of the user, or a location of the 3D viewing device 195. To this end, the sensor unit 160 may include a touch sensor, a voice sensor, a position sensor, an operation sensor, a gyro sensor, and the like.

The detected user's location, the user's gesture or the location signal of the 3D viewing device 195 may be input to the controller 170. Alternatively, unlike the drawing, it may be input to the controller 170 through the user input interface unit 150.

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

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

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

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

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

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

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

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

The controller 170 may control the display 180 to display an image. For example, 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 180.

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

Meanwhile, the controller 170 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.

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

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

On the other hand, although not shown in the figure, it may be further provided with a channel browsing processing unit for generating a thumbnail image corresponding to the channel signal or the external input signal. The channel browsing processor may receive a stream signal TS output from the demodulator 120 or a stream signal output from the external device interface 130, extract a video from the input stream signal, and generate a thumbnail image. Can be. The generated thumbnail image may be input as it is or encoded to the controller 170. In addition, the generated thumbnail image may be encoded in a stream form and input to the controller 170. The controller 170 may display a thumbnail list including a plurality of thumbnail images on the display 180 by using the input thumbnail image. In this case, the thumbnail list may be displayed in a simple viewing manner displayed in a partial region while a predetermined image is displayed on the display 180 or in an overall viewing manner displayed in most regions of the display 180. The thumbnail images in the thumbnail list may be updated sequentially.

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

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

The display 180 may be divided into an additional display method and a single display method for viewing a 3D image.

The independent display method may implement a 3D image by the display 180 alone without additional display, for example, glasses, and the like, for example, a lenticular method, a parallax barrier, or the like. Various methods can be applied.

Meanwhile, the additional display method may implement 3D images by using the additional display as the 3D viewing apparatus 195 in addition to the display 180. For example, various methods such as a head mounted display (HMD) type and glasses type may be used. Can be applied. In addition, the spectacles type can be further divided into a passive scheme such as a polarized glasses type and an active scheme such as a shutter glass type. On the other hand, the head mounted display type can be divided into passive and active methods.

In the embodiment of the present invention, the 3D viewing apparatus 195 describes the 3D glasses mainly for the 3D image viewing. The 3D glass 195 may include a passive polarized glass or an active shutter glass, and is described with the concept of including the aforementioned head mount type.

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

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

The photographing unit 190 photographs a user. The photographing unit 190 may be implemented by one camera, but is not limited thereto and may be implemented by a plurality of cameras. The photographing unit 190 may be disposed above the display 180. The image information photographed by the photographing unit 190 is input to the controller 170.

The controller 170 may detect a user's gesture by combining or respectively combining an image captured by the photographing unit 190 or a detected signal from the sensor unit 160.

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

The video display device 100 described above is a fixed type of ATSC (7-VSB) digital broadcasting, DVB-T (COFDM) digital broadcasting, ISDB-T (BST-OFDM) digital broadcasting, and the like. It may be a digital broadcast receiver capable of receiving at least one. In addition, as a mobile type, digital broadcasting of terrestrial DMB system, digital broadcasting of satellite DMB system, digital broadcasting of ATSC-M / H system, digital broadcasting of DVB-H system (COFDM system) and media flow link only system It may be a digital broadcast receiver capable of receiving at least one of digital broadcasts. It may also be a digital broadcast receiver for cable, satellite communications, or IPTV.

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

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

FIG. 2 is an internal block diagram of the controller of FIG. 1, FIG. 3 is a diagram illustrating various formats of a 3D image, and FIG. 4 is a diagram illustrating an operation of a 3D viewing apparatus according to the format of FIG. 3.

Referring to the drawings, the control unit 170 according to an embodiment of the present invention, the demultiplexer 210, the image processor 220, the OSD generator 240, the mixer 245, the frame rate converter 250, and a formatter 260. In addition, the audio processor 230 and a data processor may be further included.

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

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

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

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

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

For example, when the broadcast video signal of the external video signal input from the external device 190 or the broadcast signal received by the tuner 110 includes only the 2D video signal, when the 2D video signal and the 3D video signal are mixed, And a 3D video signal, and accordingly, the signal is processed by the controller 170, in particular, the image processor 220, and thus, a mixed signal of the 2D video signal, the 2D video signal, and the 3D video signal, respectively. The 3D video signal may be output.

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

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

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

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

The frame rate converter 250 converts the frame rate of the 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.

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

The formatter 260 may receive a mixed signal from the mixer 245, that is, an OSD signal and a decoded video signal, and separate the 2D video signal and the 3D video signal.

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

The formatter 260 may change the format of the 3D video signal. For example, it may be changed to any one of the various formats illustrated in FIG. 3. Accordingly, according to the format, as shown in FIG. 4, the operation of the 3D viewing apparatus of the glasses type may be performed.

First, FIG. 4A illustrates an operation of the 3D glasses 195, particularly the shutter glasses 195, when the formatter 260 arranges and outputs the frame sequential format among the formats of FIG. 3.

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

On the other hand, Figure 4 (b) illustrates the operation of the 3D glass 195, in particular the polarized glass 195, when the formatter 260 is aligned in the side-by-side format of the format of Figure 3 output. Meanwhile, the 3D glass 195 applied in FIG. 4B may be a shutter glass, and the shutter glass at this time may be operated as a polarized glass by keeping both the left eye glass and the right eye glass open. .

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

Although not shown in the drawing, a 3D processor (not shown) for processing a 3D effect signal may be further disposed after the formatter 260. The 3D processor (not shown) may process brightness, tint, and color adjustment of an image signal to improve 3D effects. For example, signal processing may be performed to sharpen the near distance and blur the far distance. Meanwhile, the functions of the 3D processor may be merged into the formatter 260 or merged into the image processor 220. This will be described later with reference to FIG. 5.

Meanwhile, the audio processor 230 in the controller 170 may perform voice processing of the demultiplexed voice signal. To this end, the audio processor 230 may include various decoders.

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

Also, the audio processor 230 in the controller 170 may process base, treble, volume control, and the like.

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

Meanwhile, although FIG. 2 illustrates that the signals from the OSD generator 240 and the image processor 220 are mixed in the mixer 245 and then 3D processed in the formatter 260, the mixer is not limited thereto. May be located after the formatter. That is, the output of the image processor 220 is 3D processed by the formatter 260, and the OSD generator 240 performs 3D processing together with OSD generation, and then mixes each processed 3D signal by the mixer 245. It is also possible.

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

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

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

Referring to the drawings, in order to increase the 3D effect, the controller 170 may perform 3D effect signal processing. Among them, in particular, the size or tilt of the 3D object in the 3D image may be adjusted.

As shown in FIG. 5A, the 3D video signal or the 3D object 510 in the 3D video signal may be enlarged or reduced 512 as a whole at a predetermined ratio, and as shown in FIGS. 5B and 5C. The 3D object may be partially enlarged or reduced (trapezoidal shapes 514 and 516). In addition, as shown in FIG. 5D, at least a part of the 3D object may be rotated (parallel quadrilateral shape) 518. Through such scaling (scaling) or tilting, it is possible to emphasize a three-dimensional effect, that is, a three-dimensional effect, of a 3D image or a 3D object in the 3D image.

On the other hand, as the slope becomes larger, as shown in FIG. 5 (b) or FIG. 5 (c), the length difference between the parallel sides of the trapezoidal shapes 514 and 516 increases, or as shown in FIG. It gets bigger.

Meanwhile, the size adjustment or the tilt adjustment may be performed after the 3D video signal is aligned in a predetermined format in the formatter 260. Alternatively, the image may be performed by the scaler 235 in the image processor 220. On the other hand, the OSD generation unit 240, it is also possible to generate the object in the shape as shown in Figure 5 to generate the OSD to emphasize the 3D effect.

On the other hand, although not shown in the figure, as a signal processing for the 3-dimensional effect, in addition to the size adjustment or tilt adjustment illustrated in FIG. 5, the brightness, tint and It is also possible to perform signal processing such as color adjustment. For example, signal processing may be performed to sharpen the near distance and blur the far distance. Meanwhile, the signal processing for the 3D effect may be performed in the controller 170 or may be performed through a separate 3D processor. In particular, when performed in the controller 170, it may be performed in the formatter 260 or in the image processor 220 together with the above-described size adjustment or tilt adjustment.

In particular, when the display 180 of the image display apparatus 100 is vertically disposed on the ground and horizontally disposed on the ground, 3D in the 3D image or the 3D image according to the embodiment of the present invention. Signal processing may be performed to change at least one of brightness, contrast, and tint of an object or to adjust the size or tilt of an object in a 3D image. As a result, the stereoscopic effect of the 3D image or the 3D object is further improved when the display 180 is horizontally arranged than when the display 180 is vertically arranged.

FIG. 6 is a diagram illustrating an image formed by a left eye image and a right eye image, and FIG. 7 is a diagram illustrating a depth of a 3D image according to an interval between a left eye image and a right eye image.

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

First, the first object 615 includes first left eye images 611 and L based on the first left eye image signal and first right eye images 613 and R based on the first right eye image signal. An interval between the first left eye image 611 and L and the first right eye image 613 and R is illustrated to be d1 on the display 180. In this case, the user recognizes that an image is formed at an intersection point of the extension line connecting the left eye 601 and the first left eye image 611 and the extension line connecting the right eye 603 and the first right eye image 603. Accordingly, the user recognizes that the first object 615 is located behind the display 180.

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

Next, the third object 635 and the fourth object 645 are the third left eye image 631 and L, the second right eye image 633 and R, and the fourth left eye image 641 and L and the fourth object, respectively. The right eye images 643 and R are included, and the intervals are d3 and d4, respectively.

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

In this case, it is recognized that the fourth object 645 is projected ahead of the third object 635, that is, more protruding from the fourth object 635, which is the distance between the fourth left eye images 641 and L and the fourth right eye images 643 and R. d4) is larger than the distance d3 between the third left eye images 631 and L and the third right eye images 633 and R.

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

Referring to FIG. 7, the distance a between the left eye image 701 and the right eye image 702 of FIG. 7A is the distance between the left eye image 701 and the right eye image 702 shown in FIG. 7B. When (b) is smaller, it can be seen that the depth b 'of the 3D object of FIG. 7 (b) is smaller than the depth a' of the 3D object of FIG. 7 (a).

As such, when the 3D image is exemplified as the left eye image and the right eye image, a position recognized as image formation from the user's point of view varies depending on the distance between the left eye image and the right eye image. Therefore, by adjusting the display interval of the left eye image and the right eye image, it is possible to adjust the depth of the 3D image or 3D object composed of the left eye image and the right eye image.

FIG. 8 is a diagram illustrating an example of a display arrangement of the image display device of FIG. 1.

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

At this time, the support 810 for the vertical arrangement, a set-top box, the tuner 110, the demodulator 120, the external device interface unit 130, the network interface unit 135, the storage unit 140, the user input The interface unit 150 may include at least some of the sensor unit 160, the control unit 170, the audio output unit 185, and the power supply unit.

Meanwhile, the signal processing of the input image may be performed by the image display apparatus 100 itself. Alternatively, the image processing may be performed by the support 810 as a set-top box. In this case, the support 810 and the image display device 100 as a set-top box can perform wired communication with each other.

Next, FIG. 8B illustrates that the display 180 of the image display apparatus 100 is horizontally disposed on the ground. To this end, the image display apparatus 100 may be disposed on the support 820 for horizontal placement. Or, it may be placed on a table or desk, flat furniture or floor, but not on the support 820.

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

Meanwhile, as shown in FIG. 8B, when the display 180 of the image display apparatus 100 is horizontally disposed on the ground, the user uses the 3D viewing apparatuses 195a and 195b to display the 3D image. 3D video can be watched.

In addition, in this specification, a horizontal means the state parallel to the ground in a flat state without inclining substantially. The horizontal direction is the direction perpendicular to the direction of the Earth's gravity. Depending on the equilibrium state of the support 320 or the bottom may not be exactly perpendicular to the direction of the earth's gravity, it does not mean only the complete equilibrium state horizontally arranged in this specification, the screen of the display 180 to the top, that is, It may include a state exposed in the direction opposite to the direction toward the ground. The horizontal direction may include an error range of a predetermined angle according to the equilibrium state of the support 320 or the floor, as well as a direction that forms exactly 90 degrees with the earth's gravity direction.

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

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

The power supply unit 910 supplies power to the left eye glass 940 and the right eye glass 960. 3 to 5, the driving voltage VthL is applied to the left eye glass 940, and the driving voltage VthR is applied to the right eye glass 960. Accordingly, the left eye glass 940 and the right eye glass 960 are opened.

The driving voltage VthL and the driving voltage VthR are preferably alternately supplied at different periods, and may be at different levels so that the polarization directions are different.

The power supply unit 910 may supply operation power for the operation of the controller 920 and the wireless communication unit 930 in the 3D viewing apparatus 195.

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

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

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

The controller 920 may control the wireless communication unit 930 to transmit the pairing signal to the image display apparatus 100 for pairing with the image display apparatus 100. Alternatively, the pairing signal may be received from the image display apparatus 100.

The wireless communication unit 930 may transmit or receive data to and from the wireless communication unit 198 of the image display apparatus 100 using the image display apparatus 100 and the IR (InfraRed) or RF (Radio Frequency) scheme. Can be. In particular, the synchronization signal Sync for opening and closing the left eye glass 940 and the right eye glass 960 may be received from the wireless communication unit 198 of the image display apparatus 100. According to the synchronization signal Sync, the opening and closing operations of the left eye glass 940 and the right eye glass 960 are controlled.

The wireless communication unit 930 may transmit or receive a pairing signal with the video display device 100. In addition, it is also possible to transmit a signal whether the 3D viewing apparatus 195 is used to the image display apparatus 100.

The left eye glass 940 and the right eye glass 960 may be active left eye glasses and active right eye glasses that are polarized according to an applied electrical signal. On the other hand, in the left eye glass 940 and the right eye glass 960, the polarization direction can vary according to the voltage applied.

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

As described above with reference to FIGS. 1 and 2, the image display apparatus 100 may include a wireless communication unit 198, a controller 170, a display 180, and the like. Hereinafter, the operation with the 3D viewing apparatus 195 will be described.

The wireless communication unit 198 in the image display apparatus 100 may transmit a synchronization signal Sync to the 3D viewing apparatus 195. For example, the left eye glass 940 and the right eye glass 960 of the 3D viewing device 195 are synchronized with the left eye image frame and the right eye image frame sequentially displayed on the display 180 of the image display apparatus 100. A synchronization signal Sync to be opened may be transmitted in the wireless communication unit 198.

Meanwhile, the controller 170 of the image display apparatus 100 controls the wireless communication unit 198 to output the corresponding synchronization signal in accordance with the left eye image frame and the right eye image frame sequentially displayed on the display 180.

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

11A to 13B are views referred to for describing various examples of a method of operating an image display apparatus according to an exemplary embodiment of the present invention.

The controller 170 determines whether the display of the image display apparatus 100 is disposed horizontally on the ground (see FIG. 8B) by using the sensor unit 160 or the imaging unit 140. . For example, by using a gyro sensor in the sensor unit 160, whether the display 180 is horizontal to the ground is detected, and a detection signal may be input to the controller 170.

When the 3D image is displayed, the controller 170 may perform signal processing for the 3D effect when the display of the image display apparatus 100 is horizontally disposed on the ground.

Signal processing for the 3D effect, as described in the description of FIG. 5 described above, the signal processing to change at least one of the sharpness, brightness, contrast, tint of the 3D image, or to adjust the size or tilt of the object in the 3D image Can be.

Signal processing for the 3D effect is not performed when the display 180 of the image display apparatus 100 is disposed horizontally on the ground, but the display 180 of the image display apparatus 100 is disposed perpendicular to the ground. If so, it can be performed. Alternatively, when arranged vertically, 3D effect signal processing may be further enhanced than when arranged horizontally.

Meanwhile, FIG. 11A illustrates that the 3D object 1110 is displayed when the display 180 of the image display apparatus 100 is disposed perpendicular to the ground. When the user wears the 3D viewing apparatus 195, the user may confirm that the 3D object 1110 having a predetermined depth da, in particular, the first surface 1110a of the 3D object 1110 protrudes.

Next, FIG. 11B illustrates that the 3D object 1110 is displayed when the display 180 of the image display apparatus 100 is horizontally disposed on the ground. When the user wears the 3D viewing apparatus 195, the user may confirm that the 3D object 1120 having a predetermined depth db protrudes. In particular, compared to FIG. 11A, in addition to the first surface 1120a of the 3D object 1120, the second surface 1120b and the third surface 1120c may be recognized as protruding.

As such, when the display 180 of the image display apparatus 100 is horizontally disposed on the ground, since there is no graphic background surrounding the 3D object 1120, the hologram and Likewise, the 3D object 1120 may provide a vivid three-dimensional appearance as if standing.

Next, Figure 11C illustrates signal processing for the 3D effect.

When the display 180 of the image display apparatus 100 is disposed perpendicular to the ground, the controller 170 provides the object 1130 with a depth da due to the binocular disparity between the left eye image and the right eye image. . Accordingly, as shown in FIG. 11A, the 3D object 1110 is protruded to appear. In addition, the signal processing for the 3D effect may not be performed or may be performed insignificantly. Accordingly, the first region 1130a of the object 1130 does not perform scaling or tilt adjustment as described in FIG. 5.

On the other hand, when the display 180 of the image display apparatus 100 is horizontally disposed on the ground, the control unit 170 provides the object 1140 with the depth db due to the binocular disparity between the left eye image and the right eye image. Grant. Accordingly, as shown in FIG. 12B, the 3D object 1120 is protruded and viewed. In addition, signal processing for 3D effects is performed. Or even stronger than in a vertical arrangement.

Accordingly, as illustrated in FIG. 5, the first region 1140a of the object 1140 may be partially rotated to vary from a rectangle to a parallelogram shape. In addition, for the stereoscopic effect, a second region 1140b and a third region 1140c may be further added near the edge of the first region 1140a. In this case, the second region 1140b and the third region 1140c may be newly generated based on the edge of the first region 1140a.

Meanwhile, the above-described signal processing for the 3D effect may be performed by decoding an image of a new view and adding it to the original image. For example, when an input video signal is encoded into a multi-view video according to MVC (multi-view video coding) or the like, a view corresponding to the second area 1140b of FIG. 11C among the multi-view videos is included. Image of the view corresponding to the first region 1140a of FIG. 11C, and the image of the view corresponding to the first region 1140a of FIG. 11C. That is, it may add to the left eye image and the right eye image.

As a result, when the display 180 is disposed horizontally on the ground, the display 180 may be provided with an improved 3D object compared with the case where the display 180 is disposed perpendicular to the ground.

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

Meanwhile, the position of the 3D viewing apparatus 195 may be sensed by using the wireless communication unit 198 of the image display apparatus 100 that communicates with the wireless communication unit 930 of the 3D viewing apparatus 195.

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

12A illustrates that the 3D object 1310 is displayed when the display 180 is horizontally disposed on the ground. In particular, when the user wears the 3D viewing device 195 at a position adjacent to the lower portion of the display 180 (the portion without the photographing unit 190), the 3D object 1310 is a point P1 on the display 180. They are spaced apart and appear protruding.

12B illustrates that the 3D object is displayed when the display 180 is horizontally disposed on the ground. In particular, when the user wears the 3D viewing device 195 at a position adjacent to the upper portion of the display 180 (the portion with the image capture unit 190), the 3D object 1320 is a point P1 on the display 180. Spaced apart, it appears to be depressed.

FIG. 13A is a diagram illustrating that images of 3D objects are formed according to a location of a user, that is, a location of the 3D viewing apparatus 195.

Referring to the drawings, it is assumed that the position of the first user, that is, the first viewing device, is a position adjacent to the lower portion of the display 180 (the portion without the photographing unit 190), as shown in FIG. 12A. The position of the second user, that is, the second viewing device, is assumed to be a position adjacent to the upper portion of the display 180 (the portion of the image capturing unit 190), as shown in FIG. 12B.

Since the first object 1425 includes the first left eye images 1421 and L and the first right eye images 1423 and R, the first object 1425 overlaps each other and is displayed on the display 180. Accordingly, the first user and the second user recognize that the first object 1425 is located on the display 180.

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

In this case, the first user may be formed at the point where the extension line connecting the left eye 1401 and the second left eye image 1431 and the extension line connecting the right eye 1403 and the second right eye image 1433 cross each other. Recognize. Accordingly, the first user recognizes that the second object 1435 is located in front of the display 180 and protrudes.

On the other hand, the second user may be formed at the point where the extension line connecting the left eye 1405 and the second left eye image 1431 and the extension line connecting the right eye 1407 and the second right eye image 1433 cross each other. Recognize. Accordingly, the second user recognizes that the second object 1435 is located behind the display 180 and appears to be recessed.

That is, when the first viewing device and the second viewing device are located in opposite directions with respect to the display 180 while the display 180 is horizontally disposed on the ground, a user wearing one viewing device may Although the 3D image or 3D object to be displayed is recognized as protruding, the user wearing the other viewing device recognizes the displayed 3D image or 3D object as being depressed.

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

FIG. 13B is a diagram for explaining that images of 3D objects are formed according to the position of the user, that is, the position of the 3D viewing apparatus 195.

Compared with FIG. 13A, there is a difference between changing the left eye and the right eye of the second user. On the other hand, instead of changing the left and right eyes of the second user, the left eye glasses and the right eye glasses of the 3D viewing device worn by the second user are changed.

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

Next, with respect to the second object 1435, the first user may extend an extension line connecting the left eye 1401 and the second left eye image 1431, and an extension line connecting the right eye 1403 and the second right eye image 1433. At this point of intersection, it is perceived as an image forming. That is, as shown in FIG. 13A, the first user recognizes that the second object 1435 is located in front of the display 180 to protrude.

Meanwhile, with respect to the second object 1435, the second user may extend an extension line connecting the left eye 1405 and the second left eye image 1431, and an extension line connecting the right eye 1407 and the second right eye image 1433. At this point of intersection, it is perceived as an image forming.

Compared to FIG. 13A, since the positions of the left eye 1405 and the right eye 1407 of the second user are changed, the second user recognizes that the second object 1435 is located in front of the display 180 and appears to protrude. .

14 to 16 are flowcharts illustrating a method of operating an image display device according to an embodiment of the present invention, and FIGS. 17A to 19C are reference views for explaining an operation method of an image display device according to an embodiment of the present invention. It is a drawing.

As illustrated in FIG. 14, the method of operating an image display device according to an exemplary embodiment first detects an inclination of a display (S1410).

The controller 170 may determine whether the display of the image display apparatus 100 is horizontally disposed on the ground using the sensor unit 160 or the photographing unit 140, and determine the inclination of the display 180 based on the horizontal. Can be.

For example, the sensor unit 160 may include a gyro sensor. The gyro sensor may sense information about the movement and rotation of the display. For example, the gyro sensor may sense information about the movement and rotation of the display based on the x, y, and z axes. The sensor unit 160 may detect an inclination of the display with respect to the ground by using a gyro sensor, and the detection signal may be input to the controller 170.

Thereafter, the controller 170 sets an image quality setting value based on the detected tilt of the display (S1420), and controls the display to display an image based on the image quality setting value (S1430).

According to the arrangement and tilt of the display, the influence on the external environment, for example, the influence of the external light source appears differently, and the use mode such as the viewing position of the user varies. The image displayed on the display is different depending on the surrounding environment even if the same image is affected by the surrounding environment such as illuminance and color temperature.

In particular, when the ambient illuminance is much higher than the brightness of the display screen, the visibility of the image displayed on the display is sharply reduced. Therefore, there is a need to maintain the visibility of the image displayed on the display screen even if the surrounding environment changes, and in particular, the visibility of the image is not degraded in a high-environment surrounding environment.

In addition, there is a need for an optimized environment setting, in particular, an image quality setting according to the arrangement of the display. Therefore, the present application detects the degree of inclination of the display and sets and applies an optimized image quality setting value to display an image.

The display may be disposed horizontally with the ground. The horizontally arranged display may have an area and an angle of receiving light from an external light source such as a fluorescent lamp, and the viewing angle of the user may be different from that of the vertical arrangement. Therefore, an optimized picture quality setting may be further required.

17A illustrates an example in which the vertically arranged display 181 displays the 3D object 1710, and FIG. 17B illustrates an example in which the horizontally arranged display 182 displays the 3D object 1720.

Even when the 3D objects 1710 and 1720 displayed in FIGS. 17A to 17B display substantially the same object, the inclination angles based on the ground or the parallel line of the ground are different, and thus different image quality setting values may be applied. .

Meanwhile, the image displayed by applying different image quality setting values may be a 3D image. When a 3D image is displayed on a display arranged horizontally or close to the horizontal, since there is no graphic background surrounding the 3D object 1720, the 3D object (such as a hologram) is set based on the actual space where the user is located. 1720 can provide a vivid three-dimensional appearance as if standing. However, since the influence of the external environment and the external light source 1750 may further act on the visibility of the image, the tilt angle of the display may be detected and the image quality setting value may be changed in the 3D image.

According to an embodiment, the image quality setting value may include at least one of contrast ratio, brightness, sharpness, color saturation, color, and 3D rendering setting value.

In addition, the 3D rendering setting value injects realism into the image in consideration of external information such as light source, position, and color, and the setting value of rendering to create a 3D image includes at least one of contrast, brightness, sharpness, and color density. It may include, and may include an image processing setting value for increasing the volume, texture, realism of the object. The type and specific setting value of the 3D rendering setting value may vary depending on the rendering method applied.

On the other hand, the image quality setting value setting step (S1420) may be characterized by increasing at least one of the setting values included in the previous image quality setting value when the inclination is smaller than the predetermined angle (θ).

That is, when the arrangement state of the display is detected below the predetermined angle θ in comparison with the ground or parallel lines of the ground, the image is affected by the external light source 1750 when the display is larger than the vertical or the predetermined angle θ. Since the image may appear relatively dark or may be inferior in visibility, image visibility may be improved by increasing image quality settings such as brightness, sharpness, and color density than before.

Alternatively, the image quality setting value setting step (S1420) may be set such that at least one of the setting values included in the image quality setting value becomes larger as the slope is smaller. That is, the set value may be automatically changed in inverse proportion to the detected slope.

Meanwhile, the predetermined angle θ may be differently determined based on the size of the display, and may also be determined by a user's input.

According to an exemplary embodiment, the method may further include displaying a setting menu window for setting the image quality setting value, and may change the setting value according to a user input.

As shown in FIG. 15, the method of operating an image display device according to another exemplary embodiment of the present disclosure includes detecting a light amount by an external light source (S1510), setting a quality setting value based on the light amount (S1520), and The method may include displaying an image on the display based on the image quality setting value (S1530).

That is, the embodiment described with reference to FIG. 14 applies the image quality setting value based on the inclination of the display. However, the embodiment of FIG. 15 applies the image quality setting value based on the amount of light by measuring and detecting the amount of light of the external light source. There is a difference, and the image display step is similar in that an image according to the optimized setting is displayed.

Thus, similarly, the display may be disposed horizontally with respect to the ground, and the image may be a 3D image.

On the other hand, the image quality setting value setting step (S1520) may be characterized by increasing at least one of the setting values included in the previous image quality setting value when the amount of light is greater than the reference value.

That is, when the amount of light 1185 by the external light source 1850 is larger than the reference value as shown in FIG. 18A, the image may be relatively dark or may be inferior in visibility due to the influence of the external light source 1750. Therefore, the image 1810 having increased image quality setting values such as luminance, sharpness, and color concentration may be displayed to improve visibility.

In addition, in order to prevent glare that occurs when the light emitted from the display is relatively too strong than the main surface and to display images optimized for ambient luminance, that is, the amount of light 1852 by the external light source 1850 as shown in FIG. 18B is a reference value. If the size is smaller, the image 1820 having a reduced quality setting value such as luminance, sharpness, and color intensity may be displayed.

Alternatively, the image quality setting value setting step (S1520) may be set such that at least one of the setting values included in the image quality setting value increases as the amount of light increases. That is, the set value may be automatically changed in proportion to the amount of light detected.

For example, the amount of light source reflected on a vertical display is the product of the amount of light emitted by the external light source and the disturbance caused by the refraction of the light and the arrangement of the image display device and other furniture. The amount is similar to the amount of light by an external light source since the action of the disturbing factor can be greatly reduced. The disturbance factor may be expressed in decimal units of 1 or less.

Therefore, when the initial setting value or the previous setting value is set to the contrast 100, the brightness 150, the sharpness 70, and the color intensity 70, the resultant value obtained by dividing the disturbance factor value by at least one set value may be applied. Here, the disturbance factor is expressed as 1 or less, and as a result, the disturbance factor is changed to increase the image quality setting value.

According to an exemplary embodiment, the method may further include displaying a setting menu window for setting the image quality setting value, and may change the setting value according to a user input.

As shown in FIG. 16, the method of operating an image display device according to another exemplary embodiment of the present invention includes detecting a disposition state of a display (S1610), displaying a setting menu window for setting image quality setting values (S1620), The method may include setting an image quality setting value based on an input corresponding to the setting menu window (S1630) and displaying an image on the display based on the image quality setting value (S1640).

The difference from the other embodiments described above is the detection of the arrangement state of the display and the setting menu window, and the following description will focus on the difference.

According to an exemplary embodiment, the setting menu window may include information about an arrangement state of the display or information about a detected external environment.

19A to 19C illustrate various examples of the setting menu window, but the present invention is not limited thereto.

The arrangement state of the display may include tilt information of the display, and the simplest example may be divided into a horizontal arrangement mode and a vertical arrangement mode. In this case, as shown in FIG. 19A, the setting menu window 1910 may include a menu for selecting a vertical arrangement mode 1911 and a horizontal arrangement mode 1912, which are each setting appropriate image quality setting values.

The selection of the vertical arrangement mode 1911 and the horizontal arrangement mode 1912 is performed by using a pointer 1950 displayed in response to an operation on the remote controller 200, for example, the space remote controller 201. By selecting any one of the check boxes of 1910, a corresponding mode or image quality setting value may be set and input. In the drawing, although the setting menu window in the form of a check box is shown as an example, it may be implemented as another type of graphic user interface (GUI).

Alternatively, the user may directly change each image quality setting value through the setting menu window 1920 shown in FIG. 19B.

The setting menu window may include recommended setting value information based on the arrangement state of the display.

Referring to FIG. 19C, the setting menu window 1930 includes a display arrangement state 1931, external environment information such as a light amount 1932 of an external light source, a previously existing setting value 1333, and a recommended setting value 1730. can do. If the user approves the setting change to the recommended setting value 1730, the setting value is changed. In FIG. 19C, an example of recommending the entire setting is given, but individual recommendation values may be displayed for each setting value.

Therefore, a setting menu window including various kinds of information may be displayed to help apply the optimized setting to the user. In addition, the user can select whether to apply the automatic setting value change function of the present invention.

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

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

In addition, while the preferred embodiments of the present invention have been shown and described above, the present invention is not limited to the specific embodiments described above, but the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

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

Claims (20)

Detecting the tilt of the display;
Setting an image quality setting value based on the slope; And
And displaying an image on the display based on the image quality setting value. The method of claim 1,
And the display is disposed parallel to the ground. The method of claim 1,
And the image is a 3D image. The method of claim 1,
The image quality setting value includes at least one of contrast, brightness, sharpness, color density, and 3D rendering setting value. The method of claim 1,
The setting of the image quality setting value may include increasing at least one of setting values included in a previous image quality setting value when the slope is smaller than a predetermined angle. The method of claim 1,
The setting of the image quality setting value may include setting at least one of the setting values included in the image quality setting value as the slope becomes smaller. The method of claim 1,
And displaying a setting menu window for setting the image quality setting value. Sensing the amount of light by an external light source;
Setting an image quality setting value based on the amount of light; And
And displaying an image on the display based on the image quality setting value. The method of claim 8,
And the display is disposed parallel to the ground. The method of claim 8,
And the image is a 3D image. The method of claim 8,
The image quality setting value includes at least one of contrast, brightness, sharpness, color density, color, and 3D rendering setting value. The method of claim 8,
The setting of the image quality setting value may include increasing at least one of setting values included in a previous image quality setting value when the amount of light is greater than a reference value. The method of claim 8,
In the setting of the image quality setting value, at least one of the setting values included in the image quality setting value increases as the amount of light increases. The method of claim 8,
And displaying a setting menu window for setting the image quality setting value. Detecting an arrangement state of the display;
Displaying a setting menu window for setting image quality setting values;
Setting an image quality setting value based on an input corresponding to the setting menu window; And
And displaying an image on the display based on the image quality setting value. 16. The method of claim 15,
And the display is disposed parallel to the ground. 16. The method of claim 15,
The image quality setting value includes at least one of contrast, brightness, sharpness, color density, color, and 3D rendering setting value. 16. The method of claim 15,
The setting menu window may include information about an arrangement state of the display or information about a detected external environment. 16. The method of claim 15,
And the setting menu window includes recommended setting value information based on an arrangement state of the display. display;
A sensor unit detecting a tilt of the display; And,
And a controller configured to set an image quality setting value based on the slope, and control the display to display an image based on the image quality setting value.

Images