JP2013140363A - Glasses device, display device, content providing method using the same and mode switching method of display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a glasses device, a display device and a content providing method using them which can provide another piece of content provided to another user when different pieces of content are provided to a plurality of users.SOLUTION: A glasses device, a display device, a content providing method using them and a mode switching method of the display device are provided. The display device comprises a signal processing unit which configures a video frame by processing each of a plurality of pieces of content, a display unit which combines the video frame of each of the plurality of pieces of content and outputs a plurality of content views, a synchronous signal generation unit which generates a synchronous signal for synchronizing the plurality of content views with a plurality of glasses devices, an interface unit which transfers the synchronous signal to the plurality of glasses devices, and a control unit which operates on one of a single view and a multiple view and performs mode switching according to an operation state of each of the plurality of glasses devices.

Description

  The present invention relates to an eyeglass device, a display device, and a content providing method using them, and more specifically, an eyeglass device capable of providing different contents to a plurality of users, a display device, and a content providing method using them. About.

  The present invention relates to a display device that switches modes according to the operating state of a glasses device and a mode switching method thereof.

  With the development of digital technology, various electronic products have been developed and spread. In particular, various display devices such as a TV, a mobile phone, a personal computer, a notebook personal computer, and a PDA are used in many general homes.

  As the use of display devices has increased, the needs of users for more diverse functions have continued to increase. Along with this, efforts by each electronic manufacturer to respond to the needs of users have been strengthened, and products with new functions that have never existed before are emerging.

  In particular, in recent years, there is a high need for a technology that allows a plurality of users to view their desired content on a single shared display device. The display device has a problem to provide a viewer with an image that is essentially full of realism. For this purpose, the display device must be as large and clear as possible within the human field of view. This is the reason why personal computers and smartphones corresponding to today's personal display devices continue to present answers to such issues. However, the personal display device is premised on portability, and there is a limit in size to provide a complete display. On the other hand, public display devices such as televisions and large screens can overcome the video transmission limitations of personal display devices, but provide individualized content to each viewer. There was a disadvantage that could not be done. Therefore, there is a need for a technology that can provide a clear video with content suitable for an individual from a variety of content through a single shared display device.

  In order to use the shared display device as a personal display device, various fusion technologies must be considered. That is, the extension of the shared display device as described above must be complete and must be able to replace the function of the personal display device. For this purpose, not only the functions of the personal display device but also the interface must be considered.

  In the case of such a display device, since the user views only one desired content, there is a problem that the content of the content viewed by another user cannot be confirmed. Accordingly, there is a demand for a method for easily confirming the contents of content viewed by other users with a simple operation.

  Note that in a situation where a plurality of content views are output, a case where the glasses apparatus connected to any one content view is not turned off cannot occur. In particular, when multiple content views are output alternately, the number of video frames in each content view is halved compared to when only one content view is output. This makes it impossible to view clear images. Note that power consumption increases because video data for different content views must be received and each video processed. Therefore, when one or more glasses devices are turned off in a state where a plurality of content views are output, and the number of content views that actually match the glasses devices is reduced, the number of content views can be reduced, It is necessary to switch to single view mode. However, when different content views are output, the user who is viewing any one of the content views is difficult to understand the viewing status of other users, so the display device recognizes a decrease in the number of content views, It is necessary to reduce the number of content views to be output or to perform a mode switching operation for switching to the single view mode.

US registered patent No. 7956820 U.S. Pat. No. 2010-0328441

  Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide other contents provided to other users while providing different contents to a plurality of users at the same time. An eyeglass device, a display device, and a content providing method using them can be provided.

  In the display device according to the present invention for achieving the above object, a plurality of combinations of a signal processing unit constituting a video frame and a video frame of each of the plurality of contents are performed by processing each of the plurality of contents. A display unit that outputs the content view of the image, a synchronization signal generation unit that generates a synchronization signal for synchronizing the plurality of content views and the plurality of glasses devices, and the synchronization signal is transmitted to the plurality of glasses devices An interface unit, and a control unit that operates in any one of a single view and a multi-view and performs mode switching according to each operation state of the plurality of eyeglass devices.

  The controller may be configured to display the display device as a single view when the glasses device matching the remaining content views is turned off during the multi-view mode except for the glasses device matching any one of the plurality of content views. You may switch to mode.

  The controller may switch to a mode corresponding to the remaining content views when at least one glasses device matching at least one content view is turned off while the display device is operating in the multi-view mode.

  When the interface unit receives a user command for converting a pairing channel of the eyeglass device from at least one of the plurality of eyeglass devices, the control unit generates a new one of the plurality of content views. A synchronization signal corresponding to the content view may be generated, and control may be performed so that the generated synchronization signal is transmitted to at least one glasses apparatus that has transmitted the user command.

  The user command may be input through at least one switching button on the at least one glasses device.

  The new content view may be different from a content view shown by a user of the at least one glasses device.

  When the number of content views is changed by the user instruction, the control unit may perform mode switching.

  A plurality of receiving units that receive the plurality of contents may be further included.

  The plurality of receiving units may include at least one of a wired interface, a broadcast tuner, an interface connected to a storable medium, and a wireless interface.

  On the other hand, in the mode switching method of the display device according to the present invention for achieving the above object, a step of forming a video frame by processing each of a plurality of contents, and a video frame of each of the plurality of contents In combination, outputting a plurality of content views, generating a synchronization signal for synchronizing the plurality of content views and the plurality of glasses devices, and transmitting the synchronization signal to the plurality of glasses devices And a step of switching modes according to the operating state of each of the plurality of eyeglass devices.

  In the mode switching step, when the glasses device that matches any one of the plurality of content views is turned off in the middle of operating in the multi-view mode except for the glasses device that matches any one of the plurality of content views, You may switch to view mode.

  The mode switching step may switch to a mode corresponding to the remaining content views when at least one glasses device matching at least one content view is turned off while the display device is operating in the multi-view mode. .

  The mode switching step corresponds to a new content view of the plurality of content views when receiving a user command for converting a pairing channel of the glasses device from at least one of the plurality of glasses devices. The generated synchronization signal may be transmitted to at least one glasses apparatus that has transmitted the user command.

  The user command may be input through at least one switching button on the at least one glasses device.

  The new content view may be different from a content view shown by a user of the at least one glasses device.

  As described above, according to the present invention, the mode of the display device is switched according to the operating state of each of the plurality of eyeglass devices, so that a clear image can be viewed and power consumption can be reduced. become.

It is a schematic diagram which shows the structure of the content provision system which concerns on one Embodiment of this invention. It is a schematic diagram which shows the structure of the content provision system which concerns on one Embodiment of this invention. FIG. 6 is a diagram for explaining a synchronized signal transmission method according to various embodiments of the present invention. FIG. 6 is a diagram for explaining a synchronized signal transmission method according to various embodiments of the present invention. FIG. 5 is a block diagram illustrating a configuration of a display apparatus according to various embodiments of the present invention. It is a block diagram which shows the structure of a signal processing part. 1 is a block diagram illustrating a configuration of a glasses apparatus according to various embodiments of the present invention. It is a block diagram for demonstrating the structure of the spectacles apparatus which concerns on various embodiment of this invention. It is a block diagram for demonstrating the detailed structure of the spectacles apparatus which concerns on various embodiment of this invention. 5 is a flowchart for explaining a content providing method of a display apparatus according to various exemplary embodiments of the present invention. 5 is a flowchart for explaining a content providing method of a glasses apparatus according to various embodiments of the present invention. FIG. 6 is a conceptual diagram illustrating an output of a display device when one content view of the display device is turned off. 5 is a flowchart illustrating a mode switching method of a display apparatus according to various embodiments of the present invention. 5 is a flowchart illustrating a mode switching method of a display apparatus according to various embodiments of the present invention. It is a conceptual diagram which shows the video output when mode switching is performed in the display apparatus. 1 is a block diagram illustrating a configuration of a glasses apparatus according to various embodiments of the present invention. It is a figure which shows an example of the system which can view and listen to a polarized image. It is a figure for demonstrating a pattern retarder system. It is a figure which shows another embodiment of a pattern retarder system. It is a figure which shows embodiment of the multi view system by the alternate display of a video frame. FIG. 2 is a block diagram illustrating a configuration of a polarizing glasses device according to various embodiments of the present invention.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Configuration of Display Device 100 FIG. 1 and FIG. 2 are schematic diagrams showing the configuration of a content providing system according to an embodiment of the present invention. As shown in FIGS. 1 and 2, the content providing system 1000 includes a display device 100 and a glasses device 200.

  The display device 100 displays a combination of a plurality of different contents, and each of the plurality of glasses devices 200-1 and 200-2 transmits only one content image displayed by the display device 100. Displaying a combination of contents means that the contents are alternately displayed when the contents are mixed to form a video frame and displayed. Here, to display a plurality of contents alternately is a method in which a frame including video information related to one content is displayed first, and then a frame including a video augmentation related to another content is displayed. This means that a frame containing video information regarding different contents is displayed.

  FIG. 1 is a view for explaining a method for providing a plurality of 2D contents according to an embodiment of the present invention.

  The display device 100 alternately displays a plurality of 2D contents (contents A and B), and generates a synchronization signal that synchronizes the eyeglass devices 1 and 2 (200-1 and 200-2) corresponding to each content. To the eyeglass devices 1 and 2 (200-1 and 200-2).

  In this case, when one content A is displayed according to the synchronization signal, the glasses apparatus 1 (200-1) opens both the left shutter glass and the right shutter glass and displays the other content B. At this time, both the left shutter glass and the right shutter glass can be operated to be turned off. As a result, among a plurality of contents A and B displayed alternately on the viewer 1 (Viewer 1) wearing the glasses device 1 (200-1), one synchronized with the glasses device 1 (200-1). Only one content A can be viewed. In the same manner, the viewer 2 (Viewer 2) wearing the glasses device 2 (200-2) can view only the content B. The alternating display of video frames for different content takes place at a very fast rate and the blind afterimage effect is preserved while the lens is closed so that it appears natural to the user.

  FIG. 2 is a diagram illustrating a method for providing a plurality of 3D contents according to an embodiment of the present invention.

  As shown in FIG. 2, when a plurality of 3D contents (contents A and B) are 3D contents, the display device 100 alternately displays the plurality of 3D contents (contents A and B) and at the same time, The left eye image and the right eye image can also be displayed alternately.

  For example, left eye video and right eye video (AL, AR) of 3D content A can be displayed, and left eye video and right eye video (BL, BR) of 3D content B can be alternately displayed. In this case, the glasses apparatus 1 (200-1) opens the left eye and right eye glasses at the time of display of the left eye video and the right eye video (AL, AR) of the 3D content A, and the glasses apparatus 2 (200-2). ) Can open the left eye and right eye glasses at the time of display of the left eye video and the right eye video (BL, BR) of the 3D content B.

  The display apparatus 100 according to various embodiments of the present invention includes various display units such as a television, a mobile phone, a PDA, a notebook computer, a monitor, a tablet computer, an electronic book, a digital photo frame, and a computer kiosk. It may be a simple device.

  Thereby, the viewer 1 (Viewer 1) wearing the glasses device 1 (200-1) views only the 3D content A, and the viewer 2 (Viewer 2) wearing the glasses device 2 (200-2) is 3D. Only content B is viewed.

  However, it is an explanation for the case where the shutter glass method is assumed. In the case of the polarization method, the polarization direction of each of the plurality of content images and the polarization direction of the glasses apparatus 1 and 2 are realized, One skilled in the art will recognize that the view mode can be supported.

  3 and 4 are diagrams for explaining a synchronized signal transmission method according to various embodiments of the present invention.

  Referring to FIG. 3, the display apparatus 100 broadcasts or multicasts one signal obtained by multiplexing the synchronization signals corresponding to the glasses apparatus 1 (200-1) and the glasses apparatus 2 (200-2). Each of the eyeglass devices 200-1 and 200-2 operates to synchronize with a synchronization signal corresponding to a user command (for example, a channel switching command) among the signals and to turn on / off the shutter glasses. can do.

  However, the embodiment is merely an embodiment as described above, and as shown in FIG. 4, the display apparatus 100 supports the synchronization signals corresponding to the glasses apparatus 1 (200-1) and the glasses apparatus 2 (200-2), respectively. It is also possible to realize a mode in which the glasses apparatus 200-1 and 200-2 receive the synchronization signal by unicasting to each of the glasses apparatuses 200-1 and 200-2.

  Meanwhile, the synchronization signal can be realized in the form of an RF (Radio Frequency) signal or in the form of an IR (Infra Red) signal, and a detailed description thereof will be described later.

  FIG. 5 is a block diagram illustrating a configuration of a display apparatus according to various embodiments of the present invention.

  As shown in FIG. 5, the display device 100 includes a plurality of receiving units 110-1, 110-2,..., 110-n, a plurality of signal processing units 120-1, 120-2,. Unit 130, synchronization signal generation unit 140, interface unit 150, and control unit 160.

  The plurality of receiving units 110-1, 110-2,..., 110-n receive different contents. Specifically, each of the receiving units 110-1, 110-2,..., 110-n receives content from a broadcast station that transmits broadcast program content using a broadcast network or a web server that transmits content files using the Internet. Receive. Note that content can also be received from various recording medium playback devices provided in the display device 100 or connected to the display device 100. The recording medium playback device means a device that plays back content stored in various recording media such as a CD, a DVD, a hard disk, a Blu-ray disc, a memory card, and a USB memory.

  In the embodiment of receiving content from a broadcasting station, the plurality of receiving units 110-1, 110-2,..., 110-n include a tuner (not shown), a demodulator (not shown), and the like. It can be realized in a form including a configuration such as a generator (not shown). On the other hand, in the case of an embodiment in which content is received from a source such as a web server, the plurality of receiving units 110-1, 110-2, ..., 110-n can be realized by a network interface card (not shown). It is. Alternatively, in the case of an embodiment in which content is received from the above-described various recording medium playback devices, the plurality of receiving units 110-1, 110-2, ..., 110-n are interface units connected to the recording medium playback device. (Not shown). For example, it can be realized with an AV terminal, a COMP terminal, an HDMI terminal, or the like.

  As described above, the plurality of receiving units 110-1, 110-2,..., 110-n can be realized in various forms according to the embodiment.

  The plurality of receiving units 110-1, 110-2,..., 110-n are not necessarily required to receive content from similar types of sources, and can also receive content from different types of sources.

  The plurality of signal processing units 120-1, 120-2,..., 120-n are various signals for each of the contents received from the plurality of receiving units 110-1, 110-2,. Processing may be performed.

  In particular, the plurality of signal processing units 120-1, 120-2,..., 120-n process each received image in the form of a video frame, and perform brightness adjustment processing on each of the plurality of contents processed in the frame form. It can be carried out.

  Meanwhile, according to various embodiments of the present invention, the display apparatus 100 may further include a MUX unit (not shown) that multiplexes video frames. The MUX unit can multiplex and output the video frames so that at least one video frame of the first content, a video frame of the second content,... .

  The display unit 130 displays a plurality of contents according to data output from the MUX unit (not shown). Accordingly, the display unit 130 may display at least one video frame of each content alternately.

  The display unit 130 performs a function of outputting one content view in a single view and outputting a combination of a plurality of content views in a multi-view mode.

  Here, the display unit 130 includes a liquid crystal display panel (Liquid Crystal Display Panel), a plasma display panel (Plasma Display Panel), an OLED (Organic Light Emitting Diode), a VFD (Vacuum Fluorescent Dise), and a VFD (Vacuum Fluorescent Dispense). (Electro Luminescence Display) or the like. The display unit 130 can be realized in the form of a display unit as in the embodiments described later.

  As described above, a mode in which video frames of each content are alternately arranged and displayed may be called a multi-view mode (or dual view mode) or the like. When the display device 100 operates in a normal mode (or a single view mode) that displays only one of 2D content or 3D content, the plurality of receiving units 110-1, 110-2,. Only one of -n can be activated to process the content. When the user selects the multi-view mode while operating in the normal mode, the display apparatus 100 can activate the remaining receiving units and process data in the manner described above.

  On the other hand, the content described above may be 2D content or 3D content. The 3D content refers to content that allows a user to feel a three-dimensional effect using other time point images that represent the same object (Object) from different viewpoints.

  When using a plurality of 3D contents, the display unit 130 displays the left eye image and the right eye included in each 3D content provided from the plurality of frame rate conversion units 122-1, 122-2, ..., 122-n. The video can be multiplexed in a preset arrangement form and arranged alternately with video frames of other contents.

  Thereby, the left eye video and the right eye video of the first content, the left eye video and the right eye video of the second content,..., The left eye video and the right eye video of the nth content are sequentially arranged and displayed. The left eye image and the right eye image of one content are recognized through the glasses device 200.

  On the other hand, when the display apparatus 100 operates in the multi-view mode, the display apparatus 100 further includes a configuration for providing audio data included in each content differently for each user. That is, a multiplexer (not shown) for separating video data and audio data from content received from each of the receiving units 110-1, 110-2,..., 110-n, and audio for decoding the separated audio data. A decoder (not shown), a modulation unit (not shown) that modulates each decoded audio data into different frequency signals, a display unit (not shown) that transmits each modulated audio data to the glasses device, and the like are further provided. May include. Each audio data output from the display unit 130 is provided to the user through an output unit such as an earphone provided in the glasses apparatus. Since such a configuration is not directly related to the present invention, a separate illustration is omitted.

  On the other hand, if the content includes additional information such as EPG (Electric Program Guide) and subtitles, the demultiplexer can further separate the additional data from the content. The display apparatus 100 can also add subtitles and the like processed so as to be displayable via an additional data processing unit (not shown) to the corresponding video frame.

  The synchronization signal generation unit 140 generates a synchronization signal for synchronizing the glasses apparatus corresponding to each content according to the display timing of each content. That is, the synchronization signal generation unit 140 generates a synchronization signal for synchronizing the glasses apparatus with the display timing of the video frame for the content in the multi-view mode.

  The interface unit 150 transmits a synchronization signal to the glasses apparatus. In this case, the interface unit 150 transmits the synchronization signal to the glasses apparatus using various methods.

  For example, the interface unit 150 includes an RF communication module and can perform one glasses device communication. Here, the RF communication module can be realized by a Bluetooth communication module. Accordingly, the interface unit 150 can generate a transmission stream according to the Bluetooth communication standard and transmit it to the glasses apparatus so that the synchronization signal is included.

  That is, the transmission stream includes time information for turning on / off the shutter glasses of the glasses apparatus in synchronization with the display timing of each content. Specifically, the transmission stream has an offset time for turning on the left eye shutter glass of the glasses apparatus, an offset time for turning off the left eye shutter glass, and turning on the right eye shutter glass from a reference time set for each content. Information on the offset time to be turned off and the offset time to turn off the right-eye shutter glass can be included. Here, the reference time point is a time at which a vertical synchronization signal is generated in a video frame of each content, and time information for a time at which the vertical synchronization signal is generated may be included in the transmission stream.

  In order to perform communication using the Bluetooth communication method, the interface unit 150 performs pairing with each eyeglass device. When pairing is completed, information for each eyeglass device, for example, a device ID (or address), etc. may be registered in the interface 150. The interface unit 150 matches the display timing of each content with information for the glasses device, and generates one transmission stream according to the Bluetooth communication standard. For example, the interface unit 150 can match information for different glasses devices for each content according to the order in which the video frames of the content are arranged. That is, when two contents are provided alternately in the multi-view mode, the video frames of the contents arranged in the first, third,..., Nth match the information for the first glasses device, and the second. , Fourth,..., N + 1-th content video frame can match information for the second glasses device (where n is an odd number). When the glasses apparatus receives the synchronization signal, the glasses apparatus can check the display timing corresponding to its own glasses apparatus information, and can turn the shutter glasses on or off according to the confirmed display timing.

  As an embodiment, the interface unit 160 may have a plurality of Bluetooth addresses, and one glasses device may be connected to one Bluetooth address. At this time, Bluetooth may be given to each eyeglass device in ascending order or descending order in the order in which the eyeglass device 200 is connected to the interface unit 160. The interface unit 160 sets the Bluetooth address used for connection with the glasses device 200 to be excluded from the Bluetooth address search target in order to prevent other glasses devices from being connected. Can do.

  In the above-described embodiment, the interface unit 150 and the eyeglass device are described as performing communication using the Bluetooth communication method, but this is only an example. That is, in addition to the Bluetooth method, communication methods such as infrared communication and Zigbee (registered trademark) can be used, and communication can be performed by various wireless communication methods capable of transmitting and receiving signals from other short distances by forming a communication channel. It can be carried out.

  On the other hand, the interface unit 150 can provide IR (Infra Red) synchronization signals having different frequencies to the eyeglass device. In this case, the glasses apparatus can receive a synchronization signal having a specific frequency, and turn on or off the shutter glasses according to the display timing of the corresponding content.

  In this case, the interface unit 150 transmits to the glasses device an infrared signal in which a high level during the first period and a low level during the second period are alternately repeated at a preset time interval based on the synchronization information. can do. The eyeglass device can be realized such that the shutter glass is turned on during the first period at the high level and the shutter glass is turned off during the second period at the low level. In addition, the synchronization signal can be generated by various methods.

  The interface unit 150 has been described as communicating with a plurality of eyeglass devices using a single communication module, but may be realized with a plurality of communication modules that individually communicate with each eyeglass device according to the embodiment. Alternatively, when the display apparatus 100 supports a plurality of wireless communication schemes, the interface unit 160 may be realized in a form including a plurality of communication modules based on different wireless communication schemes. The wireless communication system is the same as that in the above-described embodiment.

  The control unit 160 controls the overall operation of the display apparatus 100. Specifically, the control unit 160 includes a plurality of receiving units 110-1, 110-2, ..., 110-n, a plurality of signal processing units 120-1, 120-2, ..., 120-n, and a MUX unit (see FIG. Not shown), the display unit 130, the synchronization signal generation unit 140, and the interface unit 150 can be controlled to control each component so as to perform a corresponding operation. On the other hand, the operations performed by the components of the display apparatus 100 are the same as described above, and thus the repeated description thereof is omitted.

  FIG. 6 is a block diagram illustrating a configuration of the signal processing unit 130.

  Referring to FIG. 6, the arbitrary signal processing unit 120-1 may include a video processing unit 121-1 and a frame rate conversion unit 122-1.

  The video processing unit 121-1 performs signal processing on video data included in the received content. Specifically, the video processing unit 121-1 may include a decoder (not shown) that performs decoding on video data, and a scaler (not shown) that performs up or down scaling according to the screen size of the display unit 130. .

  In addition, the video processing unit 121-1 can also convert video data in a data format corresponding to the frame rate conversion unit 122-1. For example, the video frame of each content can be converted into a side-by-side format connected side by side in the horizontal direction.

  The frame rate conversion unit 122-1 converts the frame rate of the content provided from the video processing unit 121-1 according to the multi-content display rate with reference to the output rate of the display apparatus 100. Specifically, if the display apparatus 100 operates at 60 Hz, the frame rate conversion unit 122-1 can convert the frame rate of each content to n × 60 Hz.

Configuration of Glasses Device FIG. 7 is a block diagram showing the configuration of the glasses device according to various embodiments of the present invention.

  Referring to FIG. 7, the glasses apparatus 200 is linked to the display apparatus 100 that alternately displays a plurality of contents in units of video frames, and includes a communication interface unit 210, a control unit 220, a shutter glass driving unit 230, and a first shutter glass. Part 250 and second shutter glass part 260.

  The communication interface unit 210 receives a synchronization signal from the display device.

  For example, when the communication interface unit 210 is realized by a Bluetooth communication module, communication with the display apparatus 100 according to the Bluetooth communication standard can be performed and a transmission stream including a synchronization signal can be received. In this case, the transmission stream includes time information for turning on or off the first shutter glass unit 250 and the second shutter glass unit 260 of the glasses apparatus 200 in synchronization with the display timing of each content. The shutter glasses can be turned on or off according to the display timing corresponding to their own glasses apparatus.

  Meanwhile, the communication interface unit 210 can receive an infrared-type synchronization signal that is realized by an IR receiving module and has a specific frequency. In this case, time information for turning on or off the first shutter glass unit 250 and the second shutter glass unit 260 of the glasses apparatus 200 so as to be synchronized with the display timing of any one of the plurality of contents. including.

  Meanwhile, the communication interface unit 210 can also receive information on the video frame rate and video frame period for each content from the display apparatus 100.

  The control unit 220 controls the overall operation of the glasses apparatus 200. In particular, the control unit 220 transmits the synchronization signal received from the communication interface unit 210 to the shutter glass driving unit 230 and controls the operation of the shutter glass driving unit 230. That is, the control unit 220 controls the shutter glass driving unit 230 so that a driving signal for driving the first shutter glass unit 250 and the second shutter glass unit 260 is generated based on the synchronization signal.

  The shutter glass driving unit 230 generates a driving signal based on the synchronization signal received from the control unit 220. In particular, the shutter glass driving unit 230 includes the first shutter glass unit 250 and the second shutter glass unit according to the display timing of any one of a plurality of contents displayed from the display apparatus 100 based on the synchronization signal. 260 can be opened.

  The first shutter glass unit 250 and the second shutter glass unit 260 turn the shutter glass on or off according to the driving signal received from the shutter glass driving unit 230. Specifically, the first shutter glass unit 250 and the second shutter glass unit 260 open the shutter glass at the same time when any one of a plurality of contents is displayed, and when other contents are displayed. Open all shutter glasses. Thereby, the user wearing the glasses apparatus 200 can view one content.

  On the other hand, in the case of 3D content, the first shutter glass unit 250 and the second shutter glass unit 260 can open and close each glass alternately. That is, the first shutter glass unit 250 is opened at the timing when the left eye image constituting one 3D content is displayed by the drive signal, and the second shutter glass unit 260 is opened at the timing when the right eye image is displayed. .

Embodiments that can be synchronized with other unpaired content views In the following, according to various embodiments of the present invention, an eyeglass device can be synchronized with another content view that is not currently paired. A display apparatus and a content providing method using the display apparatus will be described.

  Next, description will be made with reference to FIG.

  The control unit 160 controls the overall operation of the display apparatus 100 as described above. In particular, the control unit 160 may control the communication module to perform a connection operation with the glasses apparatus and transmit a synchronization signal according to a user command received from the glasses apparatus. Here, the user command may be a pairing request message.

Specifically, the control unit 160 may control each Bluetooth communication module to transmit a synchronization signal by pairing with the Bluetooth communication module provided in the glasses device according to a user command.
That is, the control unit 160 broadcasts an inquiry message through the Bluetooth communication module, and searches for a glasses apparatus within a range where Bluetooth communication is possible. When a pairing request message is received as a response to the inquiry message from the glasses device, the control unit 160 transmits and receives the glasses device to and from the Bluetooth address (Bluetooth® Device Address) and the pin code to perform pairing. It can be performed. Here, the control unit 160 can perform pairing by automatically inputting the pin code and registering the glasses device without the user directly inputting the pin code. However, the present invention is not limited thereto, and the pairing process may be performed through a method in which the user directly inputs the pin code of the display device and the glasses device.

  In this case, the control unit 160 can control the Bluetooth communication module provided in the interface unit 150 to perform the pairing operation described above with different glasses devices. Here, since the Bluetooth communication module transmits different synchronization signals to a plurality of glasses devices that have been paired with itself, the display device 100 synchronizes different glasses devices with each of the plurality of contents. be able to. However, this is merely an example, and the display apparatus 100 may include a plurality of Bluetooth communication modules, and the controller 160 controls each of the plurality of Bluetooth communication modules to perform a pairing operation with the plurality of glasses apparatuses. It can also be controlled.

  Meanwhile, the control unit 160 controls the communication module to perform a connection operation with the glasses apparatus and transmit a different synchronization signal when a user command is received in a state where the communication module is connected to the glasses apparatus. Can do. Specifically, when the pairing request message is received from the glasses device that has been paired with the Bluetooth communication module, the control unit 160 causes the Bluetooth communication that has been paired with the glasses device. The connection with the module can be released. The glasses apparatus can newly receive a synchronization signal different from the synchronization signal received from the Bluetooth communication module from the Bluetooth communication module. Thereby, the user wearing the glasses apparatus can view other contents.

  On the other hand, in the above-described embodiment, it has been described that the display device 100 generates each synchronization signal corresponding to the display timing of the content and transmits it to the glasses device 200, but this is only an example.

  That is, the control unit 160 can also control the interface unit 150 to generate a synchronization signal corresponding to the display timing of each content with one transmission packet according to the Bluetooth communication standard. That is, the interface unit 150 synchronizes with the display timing of the first content in order to open / off the shutter glasses of the glasses apparatus, and synchronizes with the display timing of the second contents to open / close the shutter glasses of the glasses apparatus. It is possible to generate one electrical packet including all the time information for opening / closing the shutter information of the glasses apparatus in synchronization with the display timing of the nth content in synchronization with the time information for turning it off.

  In this case, the interface unit 150 can generate a transmission packet by matching information for the glasses apparatus with the display timing of each content. For example, the interface unit 150 can match information for different glasses devices for each content in the order in which the video frames of the content are arranged. That is, when two contents are provided in the multi-view mode, the first, third,..., N-th arranged video frames match the information for the glasses device 1, and the second, fourth, ..., the video frame of the content arranged at the (n + 1) th position can match information for the glasses device 2 (where n is an odd number). The interface unit 150 can transmit the transmission packet generated to include the synchronization signal for each of the plurality of contents to the glasses apparatus. The glasses device can open / off the shutter glasses using a synchronization signal including its own glasses device information among the synchronization signals for each of the plurality of contents.

  FIG. 8 is a block diagram for explaining a configuration of a glasses apparatus according to various embodiments of the present invention. As shown in FIG. 8, the eyeglass device 200 includes a communication interface unit 2110, a control unit 220, and an input unit 240. The glasses apparatus 200 can be linked with a display apparatus that alternately displays a plurality of contents.

  The communication interface unit 210 communicates with the display device. Specifically, the communication interface unit 210 communicates with the display device by various wireless methods and receives a synchronization signal from the display device.

  For example, the communication interface unit 210 includes a Bluetooth communication module, communicates with the Bluetooth communication module in the display device, and can receive a synchronization signal having a transmission packet format that conforms to the Bluetooth communication standard. Here, the transmission packet conforming to the Bluetooth communication standard may include time information for synchronizing with the display timing of the content. Since the information included in the transmission packet has been described above, repeated description is omitted.

  The input unit 240 receives a user command for performing a connection operation with a plurality of communication modules provided in the display device. Therefore, the input unit 240 can include a switching button realized by a touch sensor or an operation button.

  The control unit 220 controls the overall operation of the glasses apparatus 200. In particular, when a user command is input, the control unit 220 performs a connection operation with a communication module provided in the display apparatus to receive a synchronization signal corresponding to one of a plurality of contents. The interface unit 210 can be controlled.

  For example, the control unit 220 transmits a pairing request message through a Bluetooth communication module provided in the communication interface unit 210, and performs pairing by transmitting / receiving a Bluetooth address and a pin code to / from the Bluetooth communication module provided in the display device. be able to. When the pairing is completed, the control unit 220 can receive a transmission packet according to the Bluetooth communication standard including time information for synchronizing with the display timing of the content via the communication interface unit 210.

  In this case, the controller 220 may perform pairing through different channels of the Bluetooth communication module provided in the display apparatus according to the number of times the user touches the switching button provided in the input unit 240. For example, when the user touches the switching button once, the control unit 220 performs pairing with the first channel of the Bluetooth communication module included in the display device, and when the user touches the switching button twice, the control unit 220 prepares for the display device. The interface unit 210 can be controlled to perform pairing with the second channel of the selected Bluetooth communication module.

  Meanwhile, the input unit 240 may include a plurality of switching buttons for receiving a user command for connection operation with a communication module provided in the display device. In this case, the controller 220 performs pairing with each channel of the Bluetooth communication module provided in the display device each time a plurality of switching buttons are touched to receive synchronization signals corresponding to different contents. As is done, the Bluetooth communication module provided in the communication interface unit 210 can be controlled.

  For example, when the user touches the switching button 1, the control unit 220 performs pairing with the first channel of the Bluetooth communication module provided in the display device, and when the user touches the switching button 2, the control unit 220 is provided in the display device. The communication interface unit 210 can be controlled to perform pairing with the second channel of the Bluetooth communication module.

  When the user inputs a selection command for selecting any one of the plurality of content views to the input unit 240, the interface unit 210 transmits information on the selected content view to the display device 100, and the display device 100 A synchronization signal corresponding to the selected content view can be received.

  Meanwhile, when a user command is input in a state where the control unit 220 is connected to the communication module and receives a synchronization signal corresponding to any one of the plurality of contents, The communication interface unit 210 can be controlled to perform a connection operation and receive a synchronization signal corresponding to the other one of the plurality of contents.

  Specifically, when a user command is input in a state where the pairing with the Bluetooth communication module provided in the display device is completed, the control unit 220 transmits a pairing request message to the display device. Accordingly, the control unit 220 transmits / receives a Bluetooth address, a pin code, and the like through another channel among the channels of the Bluetooth communication module from the display device, and the Bluetooth communication module provided in the communication interface unit 210 is connected to the other display device. It can be controlled to be paired with another channel of the Bluetooth communication module. Accordingly, a synchronization signal corresponding to another content among a plurality of contents can be received from another Bluetooth communication channel of the display device, and a user wearing the glasses device can view the other content. .

  FIG. 9 is a block diagram illustrating a detailed configuration of the eyeglass device according to various embodiments of the present invention. As shown in FIG. 9, the eyeglass device 200 includes a communication interface unit 210, a control unit 220, a shutter glass driving unit 230, an input unit 240, a first shutter glass unit 250, and a second shutter glass unit 260. . In the description of FIG. 9, the configuration having the same reference numerals as those in FIG. In addition to the content described below among the components, the description is based on the configuration of the eyeglass device 200 described above. However, in order to promote the understanding of the present embodiment, necessary portions will be described repeatedly.

  As described above, the control unit 220 transmits the synchronization signal received from the communication interface unit 210 to the shutter glass driving unit 230 and controls the operation of the shutter glass driving unit 230.

  The shutter glass driving unit 230 generates a driving signal based on the synchronization signal received from the control unit 220 as described above. Specifically, the shutter glass driving unit 230 includes the first shutter glass unit 250 and the second shutter according to the display timing of any one of the plurality of contents based on the synchronization signal received from the display device. The glass part 260 is opened.

  On the other hand, when the communication interface unit 210 is disconnected from any one of the communication modules provided in the display device and is connected to another channel, the control unit 110 can communicate with other communication. The shutter glass driving unit 230 is controlled so as to generate a driving signal based on the synchronization signal received from the channel. Accordingly, the shutter glass driving unit 230 is based on the newly received synchronization signal, and the first shutter glass unit 250 according to the display timing of the other one of the plurality of contents displayed on the display device. And the 2nd shutter glass part 260 can be opened.

  The first shutter glass unit 250 and the second shutter glass unit 260 open or turn off the shutter glasses according to the driving signal received from the shutter glass driving unit 230. Specifically, the first shutter glass unit 250 and the second shutter glass unit 260 open the shutter glass at the same time when any one of a plurality of contents is displayed, and when other contents are displayed. Turn off all shutter glasses. Thereby, the user wearing the glasses device 200 can view one content.

  On the other hand, in the above-described embodiment, it has been described that the display device generates a synchronization signal corresponding to the display timing of the content and transmits it to the glasses device 200, but this is only an example. That is, the display apparatus can generate a synchronization signal corresponding to the display timing of each content as a single transmission packet according to the Bluetooth communication standard and transmit it to the glasses apparatus.

  When the synchronization signal is received, the controller 220 can check the display timing corresponding to its own glasses apparatus information, and can open or turn off the shutter glasses according to the confirmed display timing. Then, when a user command is input, the control unit 220 controls the shutter glasses to open / off according to the display timing of the content that matches its own glasses device information, and provides other content by the user. Can do.

  FIG. 10 is a flowchart for explaining a content providing method of a display apparatus according to various exemplary embodiments of the present invention.

  First, a plurality of different contents are displayed (S1010). Specifically, a plurality of different contents are alternately arranged and displayed.

  Thereafter, a synchronization signal is generated (S1020). Specifically, a synchronization signal for synchronizing the eyeglass device corresponding to each content is generated according to the display timing of each content.

  Then, a connection operation with the glasses apparatus is performed (S1030). Specifically, the connection operation of any one channel of the communication module and the glasses apparatus is performed according to the user command received from the glasses apparatus. In this case, the communication module is a Bluetooth communication module, and the Bluetooth communication module can be paired with the Bluetooth communication module provided in the glasses device according to a user command.

  Then, the synchronization signal is transmitted (S1040). Specifically, the synchronization signal can be transmitted using the communication module that has completed the connection operation.

  On the other hand, in step S1030, when a user command is received in a state where the communication module is connected to the glasses apparatus, the operation of connecting the glasses apparatus with another channel of the communication module is performed so as to transmit a different synchronization signal. Can do.

  FIG. 11 is a flowchart for explaining a content providing method of the glasses apparatus according to various embodiments of the present invention. In particular, FIG. 11 illustrates a content providing method of a glasses device that is linked to a display device that alternately displays a plurality of contents.

  First, a user command is input (S1110). Specifically, a user command for performing a connection operation with a communication module provided in the display apparatus is received.

  Thereafter, when a user command is input (S1110-Y), a connection operation is performed (S1120). That is, the connection operation through any one channel of the communication module is performed.

  Then, the synchronization signal is received (S1130). Specifically, when a connection operation is performed, a synchronization signal corresponding to any one of a plurality of contents can be received.

  Meanwhile, the communication module provided in the display device is a Bluetooth communication module, and the glasses device can communicate with the communication module provided in the display device using the Bluetooth communication module. In this case, the step S1120 performs pairing with any one channel of the Bluetooth communication module in order to receive a synchronization signal corresponding to any one of the plurality of contents input with the user command. The Bluetooth communication module can be controlled.

  Note that the glasses apparatus may include a plurality of switching buttons for receiving a user command for a connection operation with the communication module. In this case, step S1120 can control the Bluetooth communication module to perform a pairing operation with the Bluetooth communication module provided in the display device each time a plurality of switching buttons are touched.

  On the other hand, in step S1120, when a user command is input in a state of being connected to any one channel of the communication module, a connection operation through the other channel of the communication module is performed, and any one of the plurality of contents is performed. The synchronization signal corresponding to can be received.

  On the other hand, the content providing method according to the present embodiment opens the first and second shutter glass portions according to the display timing of any one of a plurality of contents based on the synchronization signal received from the display device. Can be made.

  Since each embodiment with respect to FIGS. 10 and 11 has been described above, the repetitive description will be omitted.

  Meanwhile, the program for performing the method according to various embodiments of the present invention described above may be stored and used in various types of recording media.

  Specifically, codes for performing the above-described method include RAM (Random Access Memory), flash memory, ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electronically Erasable and Programmable, Programmable ROM). It may be stored in various types of recording media that can be read by a terminal, such as a hard disk, a removable disk, a memory card, a USB memory, a CD-ROM, and the like.

Embodiments in which mode switching is performed according to the operating state of the eyeglass device Hereinafter, a display device that performs mode switching according to each operating state of a plurality of eyeglass devices according to various embodiments of the present invention, and mode switching of the display device A method will be described.

  FIG. 12 is a conceptual diagram illustrating an output of the display apparatus 100 when one content view of the display apparatus 100 is turned off.

  However, in a situation where a plurality of content views are output, the glasses device 200 connected to any one content view cannot be turned off. For example, as in the example illustrated in FIG. 12, one of two glasses apparatuses 200 that match two different content views may be turned off. In this case, when there is no other glasses device 200 that matches the content view 2, since only the content view 1 matches the glasses device 200-2, the display device 100 also needs to output a plurality of content views. Disappears. In particular, when multiple content views are output alternately, the number of video frames in each content view is halved compared to when only one content view is output. You will not be able to view clear images. In addition, since video data for different content views must be received and each video must be processed, power consumption also increases. Accordingly, when one or more glasses devices 200 are turned off in a state where a plurality of content views are output, the number of content views that actually match the glasses devices 200 decreases. It is necessary to switch the mode to galley vinegar or single view mode. However, when different content views are output, the user who views any one of the content views cannot easily understand the viewing status of the different users, and thus the display apparatus 100 recognizes the decrease in the number of content views. It must be possible to perform a mode switching operation that reduces the number of content views to be output or switches to a single view mode.

  Hereinafter, a detailed configuration and operation of the display apparatus 100 and the glasses apparatus 200 according to an embodiment of the present invention for solving such a problem will be described in detail.

  As shown in FIG. 5, the display apparatus 100 according to various embodiments of the present invention includes a plurality of receiving units 110-1, 110-2, ..., 110-n, and a plurality of signal processing units 120-1, 120-. 2, ..., 120-n, including a display unit 130, a synchronization signal generation unit 140, an interface unit 150, and a control unit 160.

  In addition to the contents described below, the above-described components will be omitted from the description of the above-described constituent elements in the following description as much as possible, but will be repeated if necessary to facilitate understanding of the present embodiment. The contents of are also described.

  The synchronization signal generation unit 140 generates a synchronization signal for synchronizing the glasses device 200 corresponding to each content according to the display timing of each content. In particular, as described later, when there is a change in the number of content views and there is mode switching of the display apparatus 100, a synchronization signal is generated according to the number of content views that have been newly changed.

  The interface unit 150 communicates with the eyeglass device 200. In this case, the interface unit 150 can communicate with the glasses apparatus 200 by various wireless methods, transmit a synchronization signal to the glasses apparatus 200, and perform pairing with the glasses apparatus 200.

  For example, the interface unit 150 may include a Bluetooth communication module to communicate with the glasses apparatus 200, generate a synchronization signal as a transmission stream according to the Bluetooth communication standard, and transmit the synchronization signal to the glasses apparatus 200.

  If there is a change in the content view and the mode of the display device 100 is switched, the shutter glasses on / off offset time of the glasses device 200 is newly set according to the synchronization signal in accordance with the changed content view. The transport stream includes such information.

  Hereinafter, the control unit 160 will be described. As described above, the control unit 160 controls the overall operation of the display apparatus 100. In particular, the control unit 160 can perform mode switching according to the operation state of each of the plurality of eyeglass devices 200. For example, one or more glasses devices 200 among the plurality of glasses devices 200 may be turned off and only one content view that matches the glasses device 200 may remain. In this case, since viewing is performed only through one content view, it can be said that it is not different from the single view mode, but the display apparatus 100 still outputs a plurality of content views alternately. Therefore, as described above, the power consumption is increased, and the display resolution is lower than that in the single view mode, so that a clear screen cannot be viewed. In this case, the control unit 160 recognizes that one or more glasses apparatuses 200 are turned off, and thereby switches the display apparatus 100 to the single view mode. As another example, one or more glasses devices 200 among the plurality of glasses devices 200 may be turned off to reduce the number of content views that match the glasses devices 200. Also in this case, since the number of content views output through the display apparatus 100 is larger than the number of content views actually viewed, the problem of power consumption and low resolution occurs as described above. Therefore, when the one or more glasses devices 200 are turned off to obtain the number of content views, the control unit causes the display device 100 to switch to the multi-view mode corresponding to the number of remaining content views. As another example, the number of content views that match the glasses device 200 may change as a whole by changing the content view that matches one or more glasses devices 200. For example, when a certain glasses device 200 matches a content view that broadcasts a sports program, the user changes the content view to a content view that broadcasts a drama, and matches a content view that broadcasts a sports program When there is no glasses apparatus 200, the number of content views that match the glasses apparatus 200 is reduced. In this case, the control unit 160 switches the display device 100 to the multi-view mode corresponding to the number of remaining content views. Similarly, when the number of content views matching the glasses apparatus 200 is reduced and only one remains, the control unit 160 switches the display 100 to the single view mode. FIG. 15 illustrates a situation where the display apparatus 100 switches to the single view mode in this way when one glasses apparatus 200-1 is turned off when the number of content views is two.

  In order to switch the mode, the display apparatus 100 must receive information on the operation state of the glasses apparatus 200 from the glasses apparatus 200. When a turn-off command is input through the input unit 240 of the glasses apparatus 200, the glasses apparatus 200 can notify the display apparatus 100 that the power of the glasses apparatus 200 is turned off through the communication interface unit 210. . Then, the interface unit 150 of the display apparatus 100 receives the turn-off input from the glasses apparatus 200 and ends the match between the glasses apparatus 200 and the content view. The same can be realized when the content view that matches the glasses device 200 is changed. That is, a content view change command may be input via the input unit 240 of the glasses device 200 described below, and the glasses device 200 displays that the content view of the glasses device 200 is changed via the communication interface unit 210. Informs the apparatus 100. The interface unit 150 of the display apparatus 100 receives a content view change command input from the glasses apparatus 200.

  In the following, a mode switching method will be described.

  13 and 14 are flowcharts illustrating a mode switching method of a display apparatus according to various embodiments of the present invention.

  First, a plurality of contents are received (S1305, S1405), and each of the plurality of contents is processed to form a video frame (S1310, S1410). Thereafter, a plurality of content views are output by combining the video frames of the respective contents (S1315, S1415), and a synchronization signal for synchronizing the plurality of content views and the plurality of glasses devices is generated (S1320, S1420). Then, the synchronization signal is transmitted to a plurality of eyeglass devices (S1325, S1425). As described above, when the operation state of the glasses apparatus is changed in a situation where a plurality of content views are output (S1330-Y, S1430-Y), when switching from the multi-view mode to the single view mode (S1435-Y), The display apparatus 100 is switched to the single view mode (S1440). Accordingly, the content is received according to the single view mode, signal-processed and output (S1450, S1455, S1460, S1465). If the multi-view mode is switched to another multi-view mode in which the number of content views is reduced (S1435-N), the multi-view mode corresponding to the number of remaining content views is switched (S1445).

  On the other hand, when the glasses apparatus is turned on again during operation while being switched to the single view mode, a step of switching to the multi view mode again may be further included.

  Hereinafter, the eyeglass device 200 according to various embodiments will be described.

  FIG. 16 is a block diagram illustrating a configuration of a glasses apparatus according to various embodiments of the present invention. In particular, the glasses apparatus 200 of FIG. 16 is linked to the display apparatus 100 that alternately outputs a plurality of contents in units of video frames, and includes an interface unit 210, a control unit 220, a shutter glass driving unit 230, and an input unit 240. The first shutter glass unit 250 and the second shutter glass unit 260 are included.

  The input unit 240 is configured to receive a turn-on command, a turn-off command, or a content view switching command for the glasses device 200. The input unit 240 of the eyeglass device 200 matching one of the plurality of content views receives the turn-on command, the turn-off command, or the content view switching command, and the interface unit 210 transmits the command to the display device 100. . In the case of a turn-on command, the glasses apparatus 200 is turned on, and the mode of the display apparatus 100 may change due to selection of the content view. When the turn-off command is input, the glasses apparatus 200 is turned off, and the display apparatus 100 detects whether there is a change in the number of content views that match the glasses apparatus, and switches the mode if there is a change. . When a content view switching command is input, the content view of the glasses device 200 is changed, and the display device 100 detects a change in the number of content views that match the glasses device. Switch. However, the turn-on command, the turn-off command, or the content view switching command is not input only through the input unit 240 but can be input through a separate device such as a remote controller.

  The interface unit 210 performs communication from the display device 100. The interface unit 210 is realized by a Bluetooth communication module, communicates with the display apparatus 100, receives a synchronization signal, and receives a synchronization signal input via the input unit 240 as described above. Can be transmitted to the display device 100.

  As described above, the synchronization signal may be received in the form of a transmission stream according to the Bluetooth communication standard, and the first shutter glass unit 250 and the second shutter glass unit 260 of the glasses apparatus 200 are turned on or synchronized in synchronization with the display timing of the content. Time information for turning off can be included. Since the information included in the transmission stream has been described above, repeated description thereof will be omitted.

  The control unit 220 controls the overall operation of the glasses apparatus 200. In particular, the control unit 220 transmits the synchronization signal received from the interface 210 to the shutter glass driving unit 230 and controls the operation of the shutter glass driving unit 230. That is, the control unit 220 controls the shutter glass driving unit 230 so that a driving signal for driving the first shutter glass unit 250 and the second shutter glass unit 260 is generated based on the synchronization signal. Further, the interface unit 210 may be controlled to transmit a turn-on command, a turn-off command, or a content view switching command input through the input unit 240 to the display apparatus 100. In particular, when the mode of the display apparatus 100 is switched, the shutter glasses of the glasses apparatus 200 are changed according to the on / off offset time of the changed shutter glasses of the glasses apparatus 200 included in the transmission stream received from the display apparatus 100. Control to turn on or off.

  The shutter glass driving unit 230 generates a driving signal based on the synchronization signal received from the control unit 220. In particular, the first shutter glass unit 250 and the second shutter glass unit according to the display timing of any one of a plurality of contents displayed from the display apparatus 100 based on the synchronization signal of the shutter glass driving unit 230. 260 can be opened.

  The first shutter glass unit 250 and the second shutter glass unit 260 turn on or off the shutter glass according to the drive signal received from the shutter glass driving unit 230. Specifically, the first shutter glass unit 250 and the second shutter glass unit 260 open the shutter glass at the same time when any one of a plurality of contents is displayed, and when other contents are displayed. Close all shutter glasses. Thereby, the user wearing the glasses device 200 can view one content.

  On the other hand, in the above-described embodiment, it has been described that the display device 100 generates each synchronization signal corresponding to the display timing of the content and transmits it to the glasses device 200, but this is only an example.

  When receiving the synchronization signal, the glasses apparatus 200 can check the display timing corresponding to the information of the glasses apparatus 200 of the glasses apparatus 200, and can turn on or off the shutter glasses according to the confirmed display timing. That is, the glasses apparatus 200 can control the shutter glass driving unit 230 so that the driving signals are sequentially generated based on the synchronization signals corresponding to the respective contents included in the transmission stream. Accordingly, the first shutter glass unit 250 and the second shutter glass unit 260 are opened each time a video frame of each content is displayed.

  Meanwhile, the program for performing the method according to various embodiments of the present invention described above may be stored and used in various types of recording media.

  Specifically, codes for performing the above-described method include RAM (Random Access Memory), flash memory, ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electronically Erasable and Programmable, Programmable ROM). It may be stored in various types of recording media that can be read by a terminal, such as a hard disk, a removable disk, a memory card, a USB memory, a CD-ROM, and the like.

Polarized Display Device and Glasses Device The various embodiments of the present invention described above may be performed through a polarized display device and a glasses device. In the following, the configuration and operation of such a polarizing display device and glasses device will be described.

Configuration and Operation of Display Device First, the configuration and operation of a polarization type display device will be described first.

  FIG. 17 is a diagram illustrating an example of a system capable of viewing polarized video, FIG. 18 is a diagram for explaining a pattern retarder system, and FIG. 19 illustrates another embodiment of the pattern retarder system. FIG. 20 is a diagram illustrating an embodiment of a multi-view method using an alternate display of video frames.

  As shown in FIG. 17, a system capable of viewing a polarized image includes a display device 100 and a glasses device.

  The display device 100 outputs a video polarized in a specific direction, for example, a horizontal direction or a vertical direction, as a configuration for outputting a video. As shown in FIG. 17, when the display device outputs an image polarized in the vertical direction A, the glasses device 40 passes only the image polarized in the horizontal direction B, and the image polarized in the vertical direction A Can be blocked. In this case, a user wearing glasses cannot view a vertically polarized image. As described above, since the display apparatus 100 must polarize the output image, the display apparatus 100 includes various polarization means.

  As an embodiment of the polarizing means, the display apparatus 100 may further include a polarizing panel (not shown). The polarizing panel is provided on the surface of the screen of the display apparatus 100, and polarizes an image output from the display apparatus 100 in a preset direction. If necessary, the polarization may be performed by linearly polarized light, and one of left circularly polarized light and right circularly polarized light.

  However, according to various embodiments of the present invention described above, in order to provide a multi-view for displaying a plurality of contents or to display 3D contents including a left eye image and a right eye image, It must be able to output a directionally polarized image. That is, polarizing means having different polarization axes are required.

  As an embodiment, as shown in FIG. 18, there may be a method of setting polarization differently by providing a polarization panel having different optical axes for each region of an image. Such a method is called a pattern retarder method. In this case, the polarizing panel includes a pattern retarder.

  The pattern retarder 132 is adhered to the display panel 131 of the display apparatus 10. The pattern retarder 132 includes a first pattern that faces the odd-numbered lines in the pixel array of the display panel 131 and a second pattern that faces the even-numbered lines in the pixel array of the display panel 131. As described above, in this case, the optical axis of the first pattern is different from the optical axis of the second pattern. For example, each of the optical axis of the first pattern and the second pattern can delay the phase of incident light by ¼ wavelength and −1/4 wavelength. In this case, the linearly polarized light is transformed into circularly polarized light having different directions. For example, the first pattern of the pattern retarder 132 converts the image light displayed on the odd-numbered lines of the pixel array to left circularly polarized light, and the second pattern of the pattern retarder 132 is displayed on the even-numbered lines of the pixel array. Can be converted into right-handed circularly polarized light.

  At this time, the polarizing filter of one eyeglass device may have the same optical axis as the first pattern of the pattern retarder 132. Note that the polarizing filter of the other eyeglass device has the same optical axis as the second pattern of the pattern retarder 132. That is, the former glasses device transmits left circularly polarized image light and simultaneously blocks right circularly polarized image light, and the latter glasses device transmits right circularly polarized image light. At the same time, it can block the light of the left circularly polarized image. Accordingly, different viewers can view differently polarized images. In the case of 3D stereoscopic video, the left-eye polarizing filter and the right-eye polarizing filter of one eyeglass device have different optical axes so that the left-eye video and the right-eye video can be viewed respectively. .

  On the other hand, such a pattern retarder 132 can be realized by a method that can be electrically controlled to change the polarization direction. In the above-described embodiment, when it is necessary to view a right-circularly polarized image through the first glasses device or to view a left-circularly polarized image through the second glasses device, the odd number of the display device The pattern of display lines and even display lines can be reversed.

  As an embodiment for that, the pattern retarder 132 may be realized by a liquid crystal cell. A liquid crystal cell (not shown) changes the polarization characteristics in accordance with the orientation in accordance with the driving voltage. Here, the property of polarization may be the phase or direction of polarization. That is, when a polarized image is incident, a function of delaying the wavelength of incident light can be performed when a specific driving voltage is applied to the liquid crystal cell and the alignment is performed. For example, the pattern retarder 132 formed of a liquid crystal cell can reverse the polarization direction of the linearly polarized image of the odd display line, or can change the direction of the circular polarization by changing the phase of the circular polarization of the even display line. it can. Although the liquid crystal cell is not technically limited, when realized by a twisted TN cell, when the applied voltage is 0, the incident light is rotated by the twist of the liquid crystal molecules, and the polarization direction is 90 degrees. Converted. That is, if the incident light is linearly polarized, the polarization direction is rotated by 90 degrees, and if it is left circularly polarized, it is transformed into right circularly polarized light and the right circularly polarized light is transformed into left circularly polarized light.

  In the above-described embodiment, the case where the polarization axis of the pattern is different for each horizontal pixel line has been described. However, each pattern area of the pattern retarder is not necessarily divided for each horizontal line. That is, as in the embodiment shown in FIG. 18, the pattern retarder may include a third pattern facing the odd-numbered lines and a fourth pattern facing the even-numbered lines for each vertical line. At this time, the polarizing filter of one eyeglass device 200-11 may have the same optical axis (horizontal direction) as the first pattern of the pattern retarder. In addition, the polarizing filter of the other glasses device 200-12 has the same optical axis (vertical direction) as the second pattern of the pattern retarder. Each eyeglass device views content 1 and content 2 respectively.

  On the other hand, similarly to the pattern switching of the pattern retarder 132 described above, the polarization property of the entire polarizing panel can be changed. In particular, when the multi-view providing method using the alternate display of the video frames described above in this specification is provided from the polarization type display, such a configuration is necessary because the polarization property must be changed every time the video frame is changed. It becomes. That is, as shown in FIG. 20, when a video frame is displayed, the polarization method of the polarization panel is changed to change the polarization method.

  In FIG. 20, when the horizontally polarized content view 2 is displayed, it can be viewed through the glasses device 200-3, but cannot be viewed through the glasses device 200-4. Then, when the content 2 is displayed, the display device 100 outputs the displayed video by vertically polarizing, and the viewer wearing the glasses device 200-4 can view the content view 1.

  In this way, when a plurality of contents are polarized and output differently for each frame, there is an advantage that the contents can be provided to the viewer without a decrease in resolution. However, the display apparatus 100 has to increase the frame rate, and the glasses apparatus must be provided with shutter glasses that can change the polarization axis so as to correspond to the display apparatus 100, which causes an increase in manufacturing cost. . In the case of the above-described pattern retarder method, there is no need to change the frame rate, and there is a merit that viewing can be performed with an eyeglass device not provided with shutter glasses, but the resolution may be lowered.

In the following, the configuration and operation of a polarizing glasses device will be described.

  FIG. 21 is a block diagram illustrating a configuration of a polarized glasses apparatus according to various embodiments of the present invention.

  Referring to FIG. 21, the polarizing glasses apparatus according to various embodiments of the present invention includes a front polarizer 251, a liquid crystal cell 252, a rear polarizer 253, an input unit 254, and a control unit 255.

  As described above, the glasses device has a function of transmitting an image when it has the same optical axis as that of the image polarized by the display device, and blocking the image when orthogonal. Thereby, the user who wears the glasses device can selectively view the video.

  There was an eyeglass device provided with a polarizing means fixed in an embodiment of a polarizing eyeglass device. That is, the lens has a preset optical axis and transmits only polarized images that coincide with the optical axis. Such eyeglass devices can be used in all of the above-described pattern retarder type display devices and multi-type display devices using alternating display of video frames. Each eyeglass device does not require a separate synchronization operation with the display device, and thus has an advantage of high economic efficiency and less flicker phenomenon resulting from the synchronization process.

  However, when a user wants to view a polarized image corresponding to a different optical axis from the preset optical axis, the user must wear a spectacle device with a different optical axis or replace the polarizing lens. The user can easily replace the polarized lens attached to the glasses apparatus and insert a new polarized lens to view the polarized image. However, there is an inconvenience that the lens has to be changed manually every time depending on the polarization property of the image.

  Therefore, as another embodiment, the eyeglass device can comprise means for changing the polarization properties of the lens. Below, the spectacles apparatus provided with such a means is demonstrated.

  In the embodiment of FIG. 17 described above, the eyeglass device (not shown) can transmit the image changed and output by the display prime minister 100, and for this purpose, the front polarizer 251, the liquid crystal cell 252, A rear polarizer 253 and an input unit 254 may be included.

  The front polarizer 251 has a polarization axis in the same direction as the image output by being polarized by the display apparatus 100 and passes the image. In an exemplary embodiment, the display apparatus 100 may output a horizontally polarized image. In this case, the front polarizer 251 passes only the horizontally polarized image. In contrast, when the glasses device (not shown) includes a front polarizer 251 that can pass only a vertically polarized image, the glasses device (not shown) transmits a horizontally polarized image. I can't. In the front polarizer 251, the optical axis blocks other ambient light in addition to the image that is inherently polarized by the display device 100.

  The liquid crystal cell 252 has a configuration in which the orientation is switched according to the driving voltage, and the polarization characteristics are changed according to the switched orientation. The property of polarization may be the phase or direction of polarization. That is, when a polarized image is incident, a function of delaying the wavelength of incident light can be performed when alignment is performed by applying a specific driving voltage to the liquid crystal cell. For example, the liquid crystal cell may be an active retarder, changing the polarization direction of a linearly polarized image (phase change) according to a specific applied voltage, or changing the phase of circular polarization to change circular polarization. The direction of can be reversed. The characteristics of the change are appropriately changed to suit the purpose of opening the glasses device (left eye or right eye) and transmitting incident light, or conversely closing the glasses device to prevent transmission of incident light. The In one embodiment, the linearly polarized light can be rotated 90 degrees (the phase difference is changed by λ / 2) when no voltage is applied, and when the voltage is applied, the incident light is completely changed. It is possible to pass as it is without giving.

  The implementation of the liquid crystal cell is not limited to a specific technology, but may be a TN ECB (Electrically Controllable Birefringence) cell or a TN OCB (Optically Compensated Bend) cell in one embodiment. When the liquid crystal cell is realized by a twisted TN cell, when the applied voltage is 0, the incident light is rotated by the twist of the liquid crystal molecules, and the polarization direction is converted by 90 degrees. That is, if the incident light is linearly polarized, the polarization direction is rotated by 90 degrees, and if it is left circularly polarized, it is transformed into right circularly polarized light and the right circularly polarized light is transformed into left circularly polarized light.

  The rear polarizer 253 transmits only the polarization component orthogonal to the output polarization of the display device as a configuration for polarizing the image that has passed through the liquid crystal cell again. Therefore, it can be seen that when the glasses apparatus (not shown) is opened, the polarized image of the display apparatus 100 must be in a state where it can pass through the rear polarizer 253 by operating the liquid crystal cell. On the other hand, when the shutter glasses are closed, the liquid crystal cell must deform the polarized output image of the display device to be perpendicular to the polarization axis of the rear polarizer 253.

  In the present embodiment, when looking at the operation of the eyeglass device, when the shutter is opened, the image output from the display device and vertically polarized is passed through the front polarizer 251 as it is, and the liquid crystal cell 252 displays the image. Simultaneously with the transmission, the polarization direction is made to coincide with the polarization axis of the rear polarizer 253. Accordingly, the image is transmitted to the human eye through the eyeglass device. On the other hand, when the shutter is closed, the image output from the display device and vertically polarized passes through the front polarizer 251 as it is, but the liquid crystal cell 252 also passes the image as it is, so the polarization direction is the rear polarizer 253. As a result, polarized images cannot pass through the eyeglass device and do not reach the human eye.

  The input unit 254 is configured to allow a user to input a control command in order to control the liquid crystal cell 252 of the eyeglass device. That is, the user can electrically change the polarization direction of the polarizing lens by operating the input unit 254. The input unit 254 may include a button for changing the polarization direction of the polarizing lens, a touch pad, a toggle button, and the like. For example, in FIG. 19, when the user viewing the content 2 through the glasses device 200-11 presses the toggle button to change the polarization direction of the polarization lens, the glasses device 200-11 changes the polarization direction of the polarization lens. By changing the vertical direction, the user can view the content 1.

  The control unit 255 controls the overall operation of the eyeglass devices 200-11 and 200-12. In particular, the liquid crystal cell 252 is controlled by the input of the input unit 254 so as to operate as described above.

  Here, the eyeglass devices 200-11 and 200-12 can change the polarization directions of the left eye and right eye lenses, respectively. When only the polarization direction of either the left eye or the right eye lens of the eyeglass devices 200-11, 200-12 is changed and the polarization directions of the left eye and the right eye lens are different from each other, glasses for viewing 3D content Can be used as a device.

  In the case of a polarization-type 3D display device, a plurality of viewers view the same content, so there is no need to perform communication between the display device 100 and the glasses device 200, but as shown in FIGS. In addition, when a plurality of viewers view different contents, it is necessary to communicate with the display apparatus 100. For example, the eyeglass devices 200-11 and 200-12 receive audio data corresponding to each content from the interface unit 160 of the display device 100 and output it via an audio output unit (not shown), or the input unit 254. The control command input through the terminal can be transmitted to the display apparatus 100. Therefore, the eyeglass devices 200-11 and 200-12 may further include an interface unit (not shown) that is connected to the display device 100 to perform communication. Since the interface unit provided in the eyeglass device has been specifically described in FIG. 6, a detailed description thereof will be omitted.

  On the other hand, when viewing the content while wearing the glasses device, there may be a mode for providing a plurality of content and a mode for providing 3D content. When the eyeglass devices 200-11 and 200-12 can change the polarization direction for each of the left eye and right eye lenses, the display device 100 can change the polarization direction of either the left eye or the right eye lens to the user when the mode is changed. You can display a message to change. A user wearing the glasses device can change the polarization direction by operating the input unit 254.

  When the glasses apparatus cannot change the polarization direction for each of the left eye and right eye lenses, a message indicating that the glasses apparatus should be replaced can be displayed to the user when the mode is changed.

  The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. It is obvious that a person having ordinary knowledge in the technical field to which the present invention belongs can come up with various changes or modifications within the scope of the technical spirit described in the claims. Of course, it is understood that these also belong to the technical scope of the present invention.

110-1 Receiver 1
110-2 receiving unit 2
110-n receiver n
120-1 Signal Processing Unit 1
120-2 Signal processor 2
120-n signal processor n
121-1 video processing unit 1
122-1 Frame rate conversion unit 1
130 Display Unit 140 Synchronization Signal Generation Unit 150 Interface Unit 160 Control Unit 210 Communication Interface Unit 220 Control Unit 230 Shutter Glass Drive Unit 240 Input Unit 250 First Shutter Glass Unit 251 Front Polarizer 252 Liquid Crystal Cell 253 Rear Polarizer 255 Control Unit 254 Input unit 260 Second shutter glass unit

Claims (15)

By processing each of the plurality of contents, a signal processing unit constituting a video frame;
A display unit that outputs a plurality of content views by combining video frames of the plurality of contents;
A synchronization signal generating unit that generates a synchronization signal for synchronizing the plurality of content views and the plurality of glasses devices;
An interface unit for transmitting the synchronization signal to the plurality of glasses devices;
And a control unit that operates in one of a single view and a multi-view and performs mode switching according to the operation state of each of the plurality of eyeglass devices. The controller is
Except for glasses devices that match any one of the plurality of content views, when the glasses devices that match the remaining content views are turned off during operation in the multi-view mode, the display device is switched to the single view mode. The display device according to claim 1, wherein: The controller is
The method according to claim 1, wherein when the display device is operated in the multi-view mode and at least one glasses device matching at least one content view is turned off, the display device is switched to a mode corresponding to the remaining content views. A display device according to 1. The interface unit is
Upon receiving a user command for converting a pairing channel of the glasses device from at least one of the plurality of glasses devices, the control unit corresponds to a new content view among the plurality of content views. The display apparatus according to claim 1, wherein a synchronization signal is generated, and the generated synchronization signal is controlled to be transmitted to at least one glasses apparatus that has transmitted the user command. The user command is:
The display apparatus according to claim 4, wherein the display is input through at least one switching button in the at least one glasses apparatus. The new content view is
The display apparatus according to claim 4, wherein the display apparatus is different from a content view shown by a user of the at least one glasses apparatus.   The display apparatus according to claim 4, wherein when the number of content views is changed by the user command, the control unit performs mode switching.   The display apparatus according to claim 1, further comprising a plurality of receiving units that receive the plurality of contents.   The display apparatus according to claim 8, wherein the plurality of receiving units include at least one of a wired interface, a broadcast tuner, an interface connected to a storable medium, and a wireless interface. In the mode switching method of the display device,
Forming a video frame by processing each of the plurality of contents;
Combining the video frames of each of the plurality of contents to output a plurality of content views;
Generating a synchronization signal for synchronizing the plurality of content views and the plurality of glasses devices;
Transmitting the synchronization signal to the plurality of eyeglass devices;
A mode switching method for a display device, comprising: switching a mode according to an operating state of each of the plurality of eyeglass devices. The mode switching step includes
Except for glasses devices that match any one of the plurality of content views, when the glasses devices that match the remaining content views are turned off during operation in the multi-view mode, the display device is switched to the single view mode. 11. The mode switching method for a display device according to claim 10, wherein: The mode switching step includes
The method according to claim 10, wherein when at least one glasses device that matches at least one content view is turned off while the display device is operating in the multi-view mode, the display device is switched to a mode corresponding to the remaining content views. A method for switching the mode of the display device according to claim 1. The mode switching step includes
When a user command for converting a pairing channel of the glasses device is received from at least one of the plurality of glasses devices, a synchronization signal corresponding to a new content view of the plurality of content views is generated. The method of claim 10, wherein the generated synchronization signal is transmitted to at least one glasses device that has transmitted the user command. The user command is:
The method of claim 13, wherein the mode is input through at least one switching button in the at least one glasses device. The new content view is
The method of claim 13, wherein the mode is different from a content view shown by a user of the at least one glasses device.

Images