KR101895943B1 - shutter glasses, method for controlling shutter glasses, device for processing 3 dimensional image - Google Patents

Abstract

A method for controlling shutter glasses, shutter glasses, and a three-dimensional image processing apparatus are disclosed. The communication unit may include frame rate information indicating a frame rate of the three-dimensional image processed by the three-dimensional image processing apparatus and display type information indicating a type of display for displaying the processed three-dimensional image, from the three- . The control unit may control generation of a shutter control signal based on frame rate information and display type information included in the synchronization signal received by the communication unit, and control opening and closing of the shutter based on the generated shutter control signal.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method for controlling a shutter glasses, a shutter glasses, and a three-

The present invention relates to a shutter glasses, a method for controlling the shutter glasses, and a three-dimensional image processing apparatus, and more particularly, to a shutter glasses for controlling shutter opening and closing of the shutter glasses in accordance with a display of a three- A method for controlling glasses, and a three-dimensional image processing apparatus.

Currently, the broadcasting environment is rapidly changing from analog broadcasting to digital broadcasting. Accordingly, the amount of contents for digital broadcasting is rapidly increasing. In addition to the content for displaying a 2-dimensional (2D) video signal as a 2-dimensional image, contents for displaying 3-dimensional (3D) It is planned.

The technique of displaying a three-dimensional image is based on the principle of binocular parallax that the observer perceives a stereoscopic effect in the binocular parallax, and is classified into an eyeglass system, an eyeglass system, and a full three-dimensional system. The glasses system refers to a system in which viewers wear glasses having a special function to view a stereoscopic image. The shutter system can be classified into a shutter system in which the glasses system is largely divided and a system in which the left and right are alternately opened and closed and a polarization system in which circular polarizing plates opposite to each other are mounted on the spectacle lens unit.

Various types of 3D display devices for displaying a three-dimensional image using a shutter glass system have been introduced. However, there is no shutter glasses that can be commonly used among the respective 3D display devices, and there is a problem that they must be separately manufactured and purchased.

SUMMARY OF THE INVENTION It is an object of the present invention to provide shutter glasses that can be commonly used in various types of 3D display devices.

It is another object of the present invention to provide a method for controlling shutter glasses which can commonly use shutter glasses in various kinds of 3D display devices, and a three-dimensional image processing apparatus.

It is another object of the present invention to provide a shutter eyeglass, a shutter eyeglass control method, and a three-dimensional image processing device capable of controlling opening and closing of a shutter in accordance with characteristics of a 3D display device.

According to another aspect of the present invention, there is provided a method for controlling a shutter eyeglass, a shutter eyeglass, and a three-dimensional image processing device for preventing a decrease in luminance of a 3D image and for preventing a cross- I have to.

According to another aspect of the present invention, there is provided a method for controlling a shutter glasses, the method comprising: acquiring, from a 3D image processing apparatus, frame rate information indicating a frame rate of a 3D image processed by the 3D image processing apparatus And a display type information indicating a type of a display for displaying the processed three-dimensional image, receiving a shutter control signal based on frame rate information and display type information included in the received synchronization signal, And controlling opening and closing of the shutter based on the generated shutter control signal. Here, the synchronization signal may be a beacon packet including at least one of identification information, status information, and hopping channel information. The frame rate may be one of a frame rate of a view image frame included in the 3D image, a frame rate for displaying the 3D image, and a vertical scanning frequency of the display. The display type may be one of an LCD (Liquid Crystal Display) TV, a PDP (Plasma Display Pane) TV, and a LCD (Liquid Crystal Display) monitor.

The step of generating the shutter control signal may include a step of generating a left eye shutter control signal for controlling the opening and closing of the left eye shutter and a right eye shutter control signal for controlling opening and closing of the right eye shutter.

When the display type information indicates an LCD (Liquid Crystal Display) TV, the left eye shutter control signal is generated so that the phase switching time for controlling the opening of the left eye shutter is earlier than the phase switching time of the synchronizing signal .

The interval at which the phase switching point is advanced may be determined such that the rising of the left eye shutter corresponds to an interval at which the backlight unit is turned on or before the time when the backlight unit is turned on.

When the display type information indicates a PDP (Plasma Display Panel) TV, the left eye shutter control signal is generated so that the phase switching point for controlling the close of the left eye shutter is earlier than the phase switching point of the synchronizing signal .

The interval at which the phase switching point is advanced may be set to correspond to an interval at which the falling of the left eye shutter is completed at or before the phase switching point of the synchronizing signal.

When the display type information indicates an LCD (Liquid Crystal Display) monitor, the left eye shutter control signal indicates that the phase switching point for controlling the opening of the left eye shutter is a vertical black king at the phase switching point of the synchronous signal, And the phase switching point for controlling the close of the left eye shutter may be generated in synchronization with the phase switching point of the synchronization signal.

According to another aspect of the present invention, there is provided a shutter glasses according to the present invention, the shutter glasses comprising frame rate information indicating a frame rate of a three-dimensional image processed by the three-dimensional image processing apparatus, A communication unit for receiving a synchronization signal including display type information indicating a type of a display for displaying a three-dimensional image, and a controller for generating a shutter control signal based on frame rate information and display type information included in the received synchronization signal And controlling the opening and closing of the shutter based on the generated shutter control signal. Here, the synchronization signal may be a beacon packet including at least one of identification information, status information, and hopping channel information. The frame rate may be one of a frame rate of a view image frame included in the 3D image, a frame rate for displaying the 3D image, and a vertical scanning frequency of the display. The display type may be one of an LCD (Liquid Crystal Display) TV, a PDP (Plasma Display Pane) TV, and a LCD (Liquid Crystal Display) monitor.

The shutter control signal may include a left eye shutter control signal for controlling the opening and closing of the left eye shutter and a right eye shutter control signal for controlling opening and closing of the right eye shutter.

When the display type information indicates an LCD (Liquid Crystal Display) TV, the left eye shutter control signal is generated so that the phase switching time for controlling the opening of the left eye shutter is earlier than the phase switching time of the synchronizing signal .

The interval at which the phase switching point is advanced may be determined such that the rising of the left eye shutter corresponds to an interval at which the backlight unit is turned on or before the time when the backlight unit is turned on.

When the display type information indicates a PDP (Plasma Display Panel) TV, the left eye shutter control signal is generated so that the phase switching point for controlling the close of the left eye shutter is earlier than the phase switching point of the synchronizing signal .

The interval at which the phase switching point is advanced may be set to correspond to an interval at which the falling of the left eye shutter is completed at or before the phase switching point of the synchronizing signal.

When the display type information indicates an LCD (Liquid Crystal Display) monitor, the left eye shutter control signal indicates that the phase switching point for controlling the opening of the left eye shutter is a vertical black king at the phase switching point of the synchronous signal, And the phase switching point for controlling the close of the left eye shutter may be generated in synchronization with the phase switching point of the synchronization signal.

According to another aspect of the present invention, there is provided a three-dimensional image processing apparatus including a receiver for receiving a three-dimensional image, a video decoder for decoding the received three-dimensional image, a scaler for scaling the decoded three- Dimensional image, a formatter for sampling the scaled three-dimensional image, and a display unit for displaying the frame rate information indicating a frame rate of the sampled three-dimensional image and the display type information indicating a type of a display for displaying the three- And the like. Here, the synchronization signal may be a beacon packet including at least one of identification information, status information, and hopping channel information. The frame rate may be one of a frame rate of a view image frame included in the 3D image, a frame rate for displaying the 3D image, and a vertical scanning frequency of the display. The display type may be one of an LCD (Liquid Crystal Display) TV, a PDP (Plasma Display Pane) TV, and a LCD (Liquid Crystal Display) monitor.

The three-dimensional image processing apparatus may further include a display for displaying the sampled three-dimensional image.

The three-dimensional image processing apparatus receives the synchronization signal, generates a shutter control signal based on frame rate information and display type information included in the received synchronization signal, and generates a shutter control signal based on the generated shutter control signal, And shutter glasses for opening and closing the shutter glasses.

The shutter control signal may include a left eye shutter control signal for controlling the opening and closing of the left eye shutter and a right eye shutter control signal for controlling opening and closing of the right eye shutter.

When the display type information indicates an LCD (Liquid Crystal Display) TV, the left eye shutter control signal is generated so that the phase switching time for controlling the opening of the left eye shutter is earlier than the phase switching time of the synchronizing signal .

The interval at which the phase switching point is advanced may be determined such that the rising of the left eye shutter corresponds to an interval at which the backlight unit is turned on or before the time when the backlight unit is turned on.

When the display type information indicates a PDP (Plasma Display Panel) TV, the left eye shutter control signal is generated so that the phase switching point for controlling the close of the left eye shutter is earlier than the phase switching point of the synchronizing signal .

The interval at which the phase switching point is advanced may be set to correspond to an interval at which the falling of the left eye shutter is completed at or before the phase switching point of the synchronizing signal.

When the display type information indicates an LCD (Liquid Crystal Display) monitor, the left eye shutter control signal indicates that the phase switching point for controlling the opening of the left eye shutter is a vertical black king at the phase switching point of the synchronous signal, And the phase switching point for controlling the close of the left eye shutter may be generated in synchronization with the phase switching point of the synchronization signal.

According to another aspect of the present invention, there is provided a method for controlling a shutter glasses, the method comprising: receiving a three-dimensional image; decoding the received three-dimensional image; Dimensional image, sampling the scaled three-dimensional image, frame rate information indicating a frame rate of the sampled three-dimensional image, and display type information indicating a type of a display for displaying the sampled three-dimensional image And generating the synchronizing signal, and transmitting the generated synchronizing signal to the shutter glasses. Here, the synchronization signal may be a beacon packet including at least one of identification information, status information, and hopping channel information. The frame rate may be one of a frame rate of a view image frame included in the 3D image, a frame rate for displaying the 3D image, and a vertical scanning frequency of the display. The display type may be one of an LCD (Liquid Crystal Display) TV, a PDP (Plasma Display Pane) TV, and a LCD (Liquid Crystal Display) monitor.

According to the shutter glasses, the method for controlling the shutter glasses, and the three-dimensional image processing apparatus according to the present invention, since the shutter glasses of the present invention can generate shutter control signals based on the display type information, It is possible to provide shutter glasses that can be used commonly in various types of 3D display devices and can control the left eye shutter and the right eye shutter individually in accordance with the characteristics of the 3D display device, It is possible to prevent the luminance of the 3D image from being lowered and to prevent the occurrence of cross-crosstalk when viewing the 3D image.

1 is a block diagram showing a configuration of a preferred embodiment of a multimedia system according to the present invention;
FIG. 2 illustrates a preferred embodiment of a structure of a beacon packet; FIG.
FIG. 3 illustrates a preferred embodiment of a transmission procedure of a beacon packet; FIG.
4 is a diagram for explaining an embodiment of a relationship between a synchronous signal and a beacon packet,
5 is a diagram illustrating a configuration of a preferred embodiment of a three-dimensional image processing apparatus according to the present invention.
6 is a block diagram showing a configuration of a preferred embodiment of the shutter glasses according to the present invention,
7 is a block diagram showing a configuration of a preferred embodiment of the control unit of the shutter glasses according to the present invention.
8 shows a preferred embodiment of a shutter control signal,
9 is a view showing an embodiment of the shutter operation method of the shutter glasses,
10 is a view showing another embodiment of the shutter operation method of the shutter glasses,
11 is a view showing still another embodiment of the shutter operating method of the shutter glasses,
FIG. 12 is a flowchart illustrating a method of controlling a shutter glasses according to an exemplary embodiment of the present invention,
13 is a flowchart illustrating a method of controlling the shutter glasses according to another embodiment of the present invention.

1 is a block diagram showing a configuration of a preferred embodiment of a multimedia system according to the present invention.

Referring to FIG. 1, a multimedia system 100 may include a three-dimensional image processing apparatus 110, glasses 120, and a display 130. The multimedia system 100 may be a personal computer system, such as a desktop, laptop, tablet or handheld computer.

The 3D image processing apparatus 110 may be a mobile terminal such as a mobile phone, a smart phone, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), a navigation system, Device.

The three-dimensional image processing apparatus 110 may be a multimedia device capable of reproducing multimedia data stored in a storage medium, and may be a broadcast receiver capable of receiving multimedia signals and decoding multimedia data included in the received multimedia signals. Here, the multimedia data may include a stereoscopic image as well as a two-dimensional image. The stereoscopic image may be a two-view image or a multi-view image. The multi-view image refers to a plurality of images obtained by photographing the same object with a plurality of cameras having a certain distance or angle, and defines images obtained by the cameras as view images. The broadcast signal may be transmitted via terrestrial, satellite, and cable.

The three-dimensional image processing apparatus 110 can transmit a synchronizing signal to the shutter glasses 120. The synchronization signal may be a signal for adjusting the opening and closing timing of the left eye shutter or the right eye shutter of the shutter glasses 120.

The transmitted sync signal may include at least one of frame rate information and display type information. Here, the frame rate information may be information indicating the frame rate of the stereoscopic image, and may be information indicating the frame rate of the view image including the stereoscopic image. The frame rate information may be one of a frame rate for displaying a stereoscopic image and a vertical scanning frequency for displaying the stereoscopic image. The frame rate or the vertical scanning frequency may be one of 240 Hz, 120 Hz, 60 Hz, 59.94 Hz, and 50 Hz.

And the display type information may be information indicative of the type of display 130. For example, the display type information can indicate an LCD (Liquid Crystal Display) TV, a PDP (Plasma Display Panel) TV, and an LCD monitor.

The shutter glasses 120 can transmit an RF signal requesting pairing to the three-dimensional image processing apparatus 110 and an RF signal indicating identification information from the three-dimensional image processing apparatus 110. [ The shutter glasses 120 may store the identification information. The shutter glasses 120 may compare the identification information included in the received RF signal with the stored identification information, exclude the received RF signal according to the comparison result, or input the RF signal. The synchronization signal may be included in the RF signal and transmitted.

Further, the shutter glasses 120 can generate a shutter control signal for controlling the opening and closing timings of the left and right eye shutters based on the received synchronization signal, and based on the generated shutter control signal, You can control the viewpoint. Here, the shutter control signal may include a left-eye shutter control signal and a right-eye shutter control signal. That is, the shutter glasses 120 can generate the left-eye shutter control signal and the right-eye shutter control signal, respectively, based on the received synchronizing signal, and can control the open period of the left-eye shutter based on the generated left- The open period of the right eye shutter can be controlled based on the generated right eye shutter control signal. In other words, the shutter glasses 120 can separately control the opening and closing timings of the left and right eye shutters.

The shutter glasses 120 may generate the shutter control signal differently based on the frame rate information and the display type information included in the received synchronization signal. Here, the shutter control signal may be generated such that an open time, an open period, and an open period of the shutter are controlled differently.

The display 130 may be a device capable of displaying a three-dimensional image. The display 130 may be an LCD (Liquid Crystal Display) TV, a PDP (Plasma Display Panel) TV, or an LCD monitor. Also, the display 130 may be manufactured and sold as a single product with the 3D image processing apparatus 110, and the display 130 may be manufactured as an individual product and sold.

2 is a diagram showing a preferred embodiment of a structure of a beacon packet.

Referring to FIG. 2, the synchronization signal may be a beacon packet. The beacon packet 200 includes a length field, an identification information field Net ID, a status field, hopping channel fields CH (A), CH (B), CH (C), and CH (D) An information field, a received signal strength indication (RSSI) field, and a link quality indicator (CRC) field. The beacon packet 200 may have a variable size and may have a fixed size. For example, the beacon packet 200 may be composed of 17 bytes.

The length field may include size information indicating the size of the beacon packet 200. For example, when the size of the beacon packet 200 is 17 bytes, the length field includes information indicating 17 bytes. The length field (Length) can be composed of 1 byte.

The identification information field (Net ID) may include the identification information generated during the pairing process. The identification information field (Net ID) can be composed of 3 bytes.

The Status field may include information indicating whether the 3D image processing apparatus 110 is processing a stereoscopic image. The status field (Status) can be composed of 1 byte.

The hopping channel fields CH (A), CH (B), CH (C), and CH (D)) may include four frequency hopping channels. That is, each of the CH (A) field, the CH (B) field, the CH (C) field, and the CH (D) field may include a frequency hopping channel. Further, the CH (A) field, the CH (B) field, the CH (C) field, and the CH (D) field may each be composed of 1 byte. Here, the hopping order may be a CH (A) field, a CH (B) field, a CH (C) field, and a CH (D) field.

The information field may include at least one of frame rate information and display type information and may be composed of 6 bytes.

The received signal strength indication field (RSSI) may include information indicating reception sensitivity, and the path quality check field (LQI CRC) may include information for checking channel quality.

3 is a diagram showing a preferred embodiment of a transmission procedure of a beacon packet.

Referring to FIG. 3, the 3D image processing apparatus 110 transmits a beacon packet 311 and the shutter glasses 120 receives a beacon packet 321. After 3 ms from the start of transmission of the beacon packet, the 3D image processing apparatus 110 can wait for reception of the remote data 312 from the remote controller. The three-dimensional image processing apparatus 110 may perform a channel scan 313. Here, the three-dimensional image processing apparatus 110 can perform channel scanning 6 ms after the beacon packet transmission start time. In addition, the three-dimensional image processing apparatus 110 can scan 32 channels and check the channel status.

The 3D image processing apparatus 110 transmits the beacon packet 314 and the shutter glasses 120 receives the beacon packet 322. [ Here, the beacon packet 322 may be transmitted 8.33 ms after the transmission start time of the beacon packet 321. That is, the beacon packet can be transmitted at a period of 8.33 ms.

4 is a diagram for explaining an embodiment of a relationship between a synchronization signal and a beacon packet.

Referring to FIG. 4, the synchronization signal 410 may be transmitted at a period of 16.66 ms. In some embodiments, the shutter glasses 120 can control the opening and closing of the shutter in accordance with the transmitted synchronization signal. For example, the shutter glasses 120 controls the left eye shutter to be opened in a section between the transmission start point 411 and the phase point-in-time point 412 of the synchronization signal 410, And controls the right eye shutter to be turned off in the section between the start point 413.

The synchronization signal 410 may be transmitted to the shutter glasses 120 separately from the beacon packet and the beacon packet may be transmitted to the shutter glasses 120 as the synchronous signal 410.

For example, it can be transmitted as one synchronization signal, which is two beacon packets. The transmission start time of the beacon packet 421 can be interpreted as the transmission start time 411 of the synchronization signal and the transmission start time of the beacon packet 422 can be interpreted as the phase change point 412 of the synchronization signal. Here, if the period of the beacon packet is set to 8.33 ms, the synchronous signal is transmitted in a period of 16.6 ms. That is, the interval between the transmission start time 411 and the phase switching time 412 is 8.33 ms, the interval between the phase switching time 412 and the next transmission start time 413 is 8.33 ms, and the synchronizing signal is 16.6 ms do. Therefore, the transmission start time of the beacon packet 421 can be used to control the opening timing of the left eye shutter. In addition, the start point of transmission of the beacon packet 422 can be used to control the closing timing of the left-eye shutter and can be used to control the opening timing of the right-eye shutter.

5 is a diagram showing a configuration of a preferred embodiment of a three-dimensional image processing apparatus according to the present invention.

5, the three-dimensional image processing apparatus 110 includes a tuner unit 505, a demodulator 510, a demultiplexer 515, a network interface unit 520, an external signal input unit 525, An audio decoder 535, a control unit 540, a storage unit 545, a scaler 550, a mixer 560, a frame rate converter (FRC) 570, a formatter 580, and a communication unit 590.

The tuner unit 505 selects an RF broadcast signal corresponding to a channel selected by the user from among RF (Radio Frequency) broadcast signals received through an antenna, and outputs the selected RF broadcast signal as an intermediate frequency signal, Conversion. The tuner unit 505 can receive RF carrier signals of a single carrier according to an Advanced Television System Committee (ATSC) scheme or RF carriers of a plurality of carriers according to a DVB (Digital Video Broadcasting) scheme.

The demodulation unit 510 receives the digital IF signal DIF converted by the tuner unit 505 and performs a demodulation operation. For example, when the digital IF signal output from the tuner unit 505 is the ATSC scheme, the demodulation unit 510 performs 8-VSB (8-Vestigial Side Band) demodulation. As another example, when the digital IF signal output from the tuner unit 505 is a DVB system, the demodulator 510 performs CODDMA (Coded Orthogonal Frequency Division Modulation) demodulation.

Also, the demodulator 510 may perform channel decoding. The demodulator 510 includes a trellis decoder, a de-interleaver, and a reed solomon decoder to perform trellis decoding, deinterleaving, and lead decoding. Solomon decoding can be performed.

The demodulation unit 510 may perform demodulation and channel decoding, and then output a stream signal TS. At this time, the stream signal may be a signal in which a video signal, a voice signal, or a data signal is multiplexed. For example, the stream signal may be an MPEG-2 TS (Transport Stream) multiplexed with an MPEG-2 standard video signal, a Dolby AC-3 standard audio signal, or the like. Specifically, the MPEG-2 TS may include a header of 4 bytes and a payload of 184 bytes.

The demultiplexer 515 can receive stream signals from the demodulator 510, the network interface 520, and the external signal input unit 525. The demultiplexer 515 demultiplexes the received stream signal into a video signal, an audio signal, and a data signal, and outputs the demultiplexed stream signal to the video decoder 530, the audio decoder 535, and the controller 540, respectively.

The video decoder 530 receives the video signal from the demultiplexer 515, restores the received video signal, and outputs the restored video signal to the scaler 550. Here, the image signal may include a stereoscopic image signal.

The audio decoder 535 receives the voice signal from the demultiplexer 515, restores the received voice signal, and outputs the restored voice to the display 130 or the scaler 550.

The network interface unit 520 receives packets received from the network and transmits the packets to the network. That is, the network interface unit 520 receives an IP packet for transmitting broadcast data from the service providing server through the network.

When the IP packet includes a stream signal, the network interface unit 520 may extract the stream signal from the IP packet and output the stream signal to the demultiplexer 515.

The external signal input unit 525 may provide an interface for connecting the external device to the 3D image processing apparatus 110. Here, the external device refers to various types of video or audio output devices such as a DVD (Digital Versatile Disk), a Blu-ray, a game device, a camcorder, and a computer (notebook). The three-dimensional image processing apparatus 110 can control the display of the video signal and the voice signal received from the external signal input unit 525, and can store or use the data signal.

The controller 540 executes an instruction and performs an operation associated with the three-dimensional image processing apparatus 110. For example, using the instruction retrieved from the storage unit 545, the control unit 540 can control input and output between the components of the three-dimensional image processing apparatus 110, and reception and processing of data. The control unit 540 may be implemented on a single chip, multiple chips, or multiple electrical components. Various architectures may be used for the control portion 540, including, for example, a dedicated or embedded processor, a single purpose processor, a controller, an ASIC, The control unit 540 may also include at least one process.

The control unit 540 executes the computer code together with the operating system and generates and uses data. The control unit 540 controls the display of the broadcast service based on the broadcast information included in the data signal output from the demultiplexing unit 515 and stores the broadcast information in the storage unit 545. The operating system is generally known and will not be described in more detail. By way of example, the operating system may be a Windows-based OS, Unix, Linux, Palm OS, DOS, Android and Macintosh. The operating system, other computer code, and data may reside within the storage 545 operating in conjunction with the controller 540. [

The storage unit 545 generally provides a place for storing program codes and data used by the three-dimensional image processing apparatus 110. [ By way of example, the storage 545 may be implemented as a read only memory (ROM), a random access memory (RAM), a hard disk drive, or the like. The program code and data may reside in a removable storage medium and may be loaded or installed onto the three-dimensional image processing apparatus 110 when needed. Here, the removable storage medium includes a CD-ROM, a PC-CARD, a memory card, a floppy disk, a magnetic tape, and a network component.

The scaler 550 scales the signal processed by the video decoder 530 and the audio decoder 535 into a signal of a proper size for output through the display 130 or the speaker (not shown). Specifically, the scaler 550 receives the stereoscopic image and scales it to fit the resolution or a predetermined aspect ratio of the display 130. The display 130 may be manufactured to output an image screen having a predetermined resolution, for example, 720x480 format, 1024x768, etc., according to product specifications. Accordingly, the scaler 550 can convert the resolution of the stereoscopic image, which can be input with various values, according to the resolution of the display.

In addition, the scaler 550 adjusts the aspect ratio of the stereoscopic image according to the kind of content to be displayed, user setting, or the like. The aspect ratio may be a value such as 16: 9, 4: 3, or 3: 2, and the scaler 550 may adjust the screen length ratio in the horizontal direction and the screen aspect ratio in the vertical direction to be a specific ratio.

The scaler 550 may include a main screen scaler (not shown) and a sub-screen scaler (not shown). The main screen scaler (not shown) can scale any one of a left view image or a right eye view image of a main screen or a stereoscopic image signal. The sub-screen scaler (not shown) may scale other images of the left eye view image or the right eye view image of the sub-screen or the stereoscopic image signal.

The scaler 550 may also apply image quality settings (e.g., color, sharpness, etc.) applied to display a stereoscopic image to the left eye and right eye images according to the stereoscopic image signal, respectively . Here, the image quality setting value may be specifically adjusted or set by the control unit 540, and the scaler 550 may control the left eye view image according to the stereoscopic image signal to display a predetermined image quality setting value, Respectively, and outputs them to the right eye view image. Also, the operation of applying the predetermined image quality setting value to the left eye view image and the right eye view image according to the stereoscopic image signal to be displayed and outputting may be performed in the formatter 580 rather than the scaler 550.

The mixer 560 mixes and outputs the outputs of the scaler 550 and the control unit 540.

The FRC 570 processes the image data output by the scaler 550 or the mixer 560 to correspond to the vertical frequency of the display 150. [ For example, if the vertical frequency of the video data output by the video decoder 530 is 60 Hz and the vertical frequency of the display 130 is 120 Hz or 240 Hz, the FRC 570 outputs the video data (60 Hz) In a predetermined manner so as to correspond to the vertical frequency of 120 Hz or 240 Hz. Here, the predefined method includes, for example, a method of temporal interpolation of input image data and a method of simply repeating an image frame included in input image data. The temporal interpolation method is a method of processing a video signal of 60 Hz to be an image signal of 120 Hz by dividing the inputted video signal into two equal parts (0, 0.25, 0.5, 0.75). In the method of simply repeating the frame, each frame of the inputted 60 Hz video signal is repeated twice so that the frequency of each frame becomes 120 Hz.

Each of the above-described methods can be appropriately selected according to the format of the input stereoscopic image and can be performed in the FRC 570. In the following, the display vertical frequency is defined as the vertical scanning frequency at which the image frame configured in the formatter 580 is displayed or output on the display 130. [

A formatter 580 converts the video and audio signals output from the mixer 560 into an output format of the display 130. [ Here, when the 2D image is displayed, the formatter 580 passes the input signal without performing the conversion function. In the case of displaying a stereoscopic image, the formatter 580 may operate as a 3D formatter that processes the stereoscopic image according to the format of the stereoscopic image and the display vertical frequency according to the control of the controller 540 in the 3D format.

The formatter 580 may output the converted video signal to the display 130 to implement the stereoscopic image and output the vertical synchronization signal Vsync indicating the display vertical frequency to the display 130. [ The formatter 580 may generate a sync signal corresponding to the display vertical frequency and output the sync signal to the communication unit 590. The communication unit 590 may transmit the sync signal output from the formatter 580 to the shutter glasses 120 send. The shutter glasses 120 can control the opening and closing of the left eye shutter and the right eye shutter based on the synchronization signal.

The communication unit 590 is a communication module that provides bi-directional omnidirectional (or non-directional) communication means, and performs wireless communication with other communication apparatuses in a communication system conforming to a predetermined communication standard. The communication standard may be a Zigbee, a Bluetooth, an Ultra Wideband (UWB), a Radio Frequency Identification (RFID), and a wireless LAN, And the shutter glasses 120 may be used.

The communication unit 590 can transmit the beacon packet to the shutter glasses 120. [ Here, the beacon packet may be the beacon packet 200 shown in FIG. The control unit 540 may generate the beacon packet 200 and the communication unit 590 may transmit the beacon packet 200 in synchronization with the synchronization signal output by the formatter 580. [ Here, the communication unit 590 may transmit a synchronization signal using two beacon packets 200 in the manner described above with reference to FIG.

The control unit 540 may generate the beacon packet 200 and control the communication unit 590 such that the beacon packet 200 is transmitted in synchronization with the synchronization signal output by the formatter 580. [ Here, the communication unit 590 may transmit a synchronization signal using two beacon packets 200 in the manner described above with reference to FIG.

6 is a block diagram showing a configuration of a preferred embodiment of the shutter glasses according to the present invention.

6, the shutter glasses 120 include a communication unit 610, a phase look-up block (PLL block) 620, a control unit 630, a lens unit 640, and a storage unit 650 .

The communication unit 610 is a communication module that provides bi-directional omnidirectional (or non-directional) communication means, and can perform wireless communication with the three-dimensional image processing apparatus 110 by a communication method according to a predetermined communication standard. The communication standard may be Zigbee, Bluetooth, Ultra Wideband (UWB), Radio Frequency Identification (RFID), and Wireless LAN.

The communication unit 610 may transmit the first RF signal requesting the pairing to the 3D image processing apparatus 110 and receive the second RF signal informing the 3D image processing apparatus 110 of the identification information. The communication unit 610 may receive the third RF signal including the identification information and the synchronization signal. Here, the cooperative signal included in the third RF signal may include at least one of frame rate information and display type information. The third RF signal may be the beacon packet 200 shown in FIG.

The phase synchronization unit 620 may provide the control unit 630 with a clock CLK having a frequency corresponding to the synchronization signal received by the communication unit 610. [ The control unit 630 can control the open / close timing of the left eye shutter or the right eye shutter in synchronization with the clock CLK. The phase synchronization unit 620 may generate a shutter control signal under the control of the control unit 630. [

The control unit 630 may control the communication unit 610 to transmit the first RF signal. Here, the controller 630 may control the communication unit 610 to transmit the first RF signal when there is no stored identification information or when there is a user request.

The control unit 630 may store the identification information of the second RF signal in the storage unit 650. If the third RF signal is received, the control unit 630 compares the identification information included in the third RF signal with the stored identification information. The control unit 630 may exclude the third RF signal according to the comparison result, and may input the third RF signal.

The control unit 630 can control the opening and closing of the left and right eye shutters of the lens unit 640 according to the synchronization signal transmitted from the three-dimensional image processing apparatus 110. Specifically, when the display 130 displays the left-eye view image, the control unit 630 controls the opening and closing of the left-eye and right-eye shutters so that the left-eye lens transmits light and the right-eye lens blocks light transmission. Accordingly, the left eye view image is transmitted only to the left eye of the shutter eyeglass user. When the display 130 displays the right eye view image, the control unit 630 controls the opening and closing of the left eye shutter and the right eye shutter so that the left eye lens blocks light transmission and the right eye lens allows light to pass therethrough. Accordingly, the right eye view image is transmitted only to the right eye of the user.

The control unit 630 can control the shutter control signal to be generated based on the synchronization signal. The control unit 630 can directly generate the shutter control signal and the phase synchronization unit 620 can generate the shutter control signal under the control of the control unit 630. [

The storage unit 650 may store information on the frequency band. The shutter glasses 120 can transmit and receive signals to and from the three-dimensional image processing apparatus 110 through a frequency band indicated by the stored information. The information on the frequency band may include information indicating the frequency channel for management and information indicating the pairing frequency channel. A management frequency channel may be used to transmit the first RF signal in the pairing process and receive the second RF signal, and the pairing frequency channel may be set in the pairing process. When the pairing is completed, an RF signal between the three-dimensional image processing apparatus 110 and the shutter glasses 120 can be transmitted through the pairing frequency channel. For example, the third RF signal may be transmitted on a pairing frequency channel.

The lens unit 640 may include a left eye lens, a left eye shutter, a right eye lens, and a right eye shutter. Here, the left-eye shutter and the right-eye shutter may be implemented as a liquid crystal device having a diode-operated terminal when an applied voltage of about 5 V to 25 V is not attained. In some embodiments, the left-eye shutter and the right-eye shutter are opened when a potential difference of 0 V is applied by the control unit 630, respectively, and can be closed when a potential difference of 15 V is applied. When the left eye shutter is opened, light is transmitted through the left eye lens. When the left eye shutter is closed, the light incident on the left eye lens is blocked. Also, when the right eye shutter is opened, light is transmitted through the right eye lens, and when the right eye shutter is closed, the light entering the right eye lens is blocked.

7 is a block diagram showing the configuration of a preferred embodiment of the control unit of the shutter glasses according to the present invention.

Referring to FIG. 7, the controller 630 may include a controller 710, a counter 720, and a lens driver 730.

The controller 710 can extract at least one of frame rate information and display type information from the RF signal received by the communication unit 610 and store at least one of the extracted frame rate information and display type information in the storage unit 650 .

The controller 710 may control the phase synchronization unit 620 to generate a shutter control signal based on the extracted frame rate information and display type information. In some embodiments, the controller 710 may directly generate a shutter control signal. And the controller 710 may output the generated shutter control signal to the counter 720. [

The counter 720 can generate a left eye timing signal for driving the shutter of the left eye lens and a right eye timing signal for driving the shutter of the right eye lens based on the shutter control signal. Here, the right eye timing signal may be a signal 180 degrees out of phase with the left eye timing signal.

The lens driver 730 generates and supplies an applied voltage to the liquid crystal device of the lens unit 640 based on the left eye timing signal generated by the counter 720. The open and close of the left eye shutter of the lens unit 640 can be controlled by the supplied voltage. The lens driver 730 also generates and supplies an applied voltage to the liquid crystal device of the lens unit 640 based on the right eye timing signal generated by the counter 720. The opening and closing of the right eye shutter of the lens unit 640 can be controlled by the supplied voltage.

8 is a diagram showing a preferred embodiment of the shutter control signal.

8A, the controller 710 or the phase synchronizer 620 generates a shutter control signal 810 based on at least one of a phase change point of time, a frame rate information, and a display type information of a cooperative signal . The shutter control signal 810 is for simultaneously controlling opening and closing of the left eye shutter of the shutter glasses 120 and opening and closing of the right eye shutter. The shutter glasses 120 control the left eye shutter to be opened at the generation time point 811 of the shutter control signal 810 so that the right eye shutter is closed and the left eye shutter at the phase switching point 813 of the shutter control signal 810, So that the right-eye shutter is opened. Accordingly, the left eye shutter is kept open in all or at least one part of the section between the transmission start point 811 and the phase change point 813.

In addition, the shutter glasses 120 control the left eye shutter to be opened at the phase switching point 815 of the shutter control signal 810, and control so that the right eye shutter is closed. Accordingly, the right eye shutter is kept open in all or at least one part of the section between the phase switching point 813 and the phase switching point 815. [

The present invention generates a shutter control signal on the basis of display type information and controls the opening and closing of the left and right eye shutters in accordance with the generated shutter control signal so that the shutter can be opened and closed according to the three- , And shutter glasses that can be commonly used in various display devices can be provided.

Referring to Figures 8 (b) and 8 (c), the controller 710 or the phase synchronizer 620 outputs the left eye shutter control signal 820 and the right eye shutter control signal 830, respectively, Can be generated.

The left eye shutter control signal 820 is for controlling the opening and closing of the left eye shutter of the shutter glasses 120 and the right eye shutter control signal 830 is for controlling opening and closing of the right eye shutter of the shutter glasses 120. [ The left eye shutter control signal and the right eye shutter control signal are generated, respectively, so that the present invention can individually control the opening and closing of the left eye shutter of the shutter glasses 120 and the opening and closing of the right eye shutter. Accordingly, in the present invention, the left and right eye shutters of the shutter glasses 120 can be in the open state and the closed state at the same time, and when one shutter is open, the other shutter can be opened , And when one shutter is open, the other shutter can be closed. Therefore, since the left and right eye shutters and the right eye shutter are individually controlled in accordance with the characteristics of the 3D display device, the present invention can prevent the luminance of the 3D image from being lowered during the 3D image viewing and prevent the occurrence of cross-crosstalk.

The shutter glasses 120 control the left eye shutter to be opened at the transmission start point 821 of the left eye shutter control signal 820 and control so that the left eye shutter is closed at the phase switching point 821 of the left eye shutter control signal 820 do. Accordingly, the left-eye shutter is kept open in all or at least one part of the section between the transmission start point 821 and the phase change point 823. In addition, the shutter glasses 120 control the left eye shutter to be opened at the phase switching point 825 of the left eye shutter control signal 820. Accordingly, the left-eye shutter is maintained in the closed state in the section between the phase change point of time 823 and the phase change point of time 825.

The shutter glasses 120 control the right eye shutter to be closed at the transmission start point 831 of the right eye shutter control signal 830 and control so that the right eye shutter is opened at the phase switching point 831 of the right eye shutter control signal 830 do. Accordingly, the right eye shutter is closed in a section between the transmission start point 831 and the phase switching point 833. In addition, the shutter glasses 120 control the right eye shutter to close at the phase switching point 835 of the right eye shutter control signal 830. Accordingly, the right-eye shutter remains open at all or at least one part of the section between the phase change point of time 833 and the phase change point of time 835. [

9 is a view showing an embodiment of the shutter operation method of the shutter glasses.

9, the formatter 580 may sample the stereoscopic image data to have the same arrangement as the LBRBLBRB 910. [ Here, L denotes a left eye view image frame, B denotes a black image frame including black data, and R denotes a right eye view image frame. The black data may mean pixel data whose pixel value is zero.

The display 130 scans the stereoscopic image data 910 sampled by the formatter 580. The image 920 indicates the process of scanning the stereoscopic image data 910. In image 920, the horizontal axis refers to the time axis and the vertical axis refers to the vertical position of the screen. In addition, the horizontal interval of one image frame indicates a period of time in which light is continuously supplied to the pixels when the image frame is scanned from above on the vertical axis in the display panel.

The pixel data of the left eye view image frame or the pixel data of the right eye view image frame is displayed from the upper left portion of the image 920. [ However, when the pixel data of the next view image frame starts to be displayed at the top of the screen because there is a period of time in which the light remains on the pixel, the pixel data of the previous image frame is continuously displayed on the screen.

The synchronization signal 930 indicates a synchronization signal transmitted from the three-dimensional image processing apparatus 110 to the shutter glasses 120. The interval 931 may correspond to one left eye view image frame L and one black scan time. For example, when the display vertical frequency is 240 Hz and the left-eye view image frame L and the black frame B of the stereoscopic image data 910 are scanned at 60 Hz, respectively, the interval 931 may be 8.33 ms. The phase change point of the synchronization signal 930 may correspond to the scan start point of the left eye view image L or the scan start point of the right eye view image R. [ That is, the phase switching point of the synchronizing signal 930 becomes the phase switching point of the synchronizing signal 930 at the point of time when the scan of the left eye view image L starts, .

The left-eye shutter control signal 940 is a generated left-eye shutter control signal when the display type information included in the synchronization signal 930 indicates the LCD TV. The left eye shutter control signal 940 is generated earlier than the synchronization signal 930 by an interval 941. [ Here, the interval 941 is a rising start time point at which the backlight unit is turned on at the time point when the shutter is risen, and is set at an interval for correcting the shutter start time point. . The interval 941 may be set to a difference value between the rising time 951 and the interval 953 of the shutter. The interval 953 may be an interval from the scan start point of the view image to the start point of the backlight unit.

For example, if the interval 931 is 8.33 ms, the interval 955 of the backlight unit scanning intervals 981, 982, 983 is 7.91 ms, and the rising time 951 is 1.2 ms, The difference value between 8.33 ms (931) and 7.91 ms (955) is 0.42 ms. The interval 941 can be calculated as 0.8 ms, which is a difference value between 1.2 ms (951) and 0.42 ms (953). That is, the left eye shutter control signal 940 can be pulled up by 0.8 ms ahead of the synchronizing signal 930, and the rising start time of the left eye shutter can be advanced by 0.8 ms.

The left eye shutter control signal 940 indicates that the interval from the phase switching point for controlling the shutter's rising to the next phase switching point (phase switching point for controlling the falling of the shutter) is an interval 941 and an interval 931 . That is, the phase switching point for controlling the shuttering of the shutter of the left eye shutter control signal 940 is earlier than the phase switching point of the synchronizing signal 930, and the phase switching point for controlling the falling of the shutter is synchronized with the synchronizing signal 930, Can be synchronized with the phase switching point of time.

The graph 950 shows the open / close state of the left eye shutter. Since the rising start time of the left eye shutter is advanced by the interval 941 in accordance with the left eye shutter control signal 940, the opening size of the left eye lens becomes larger than before the rising time of the left eye shutter is earlier, As a result, the brightness reduction phenomenon of the sections 991 and 993 may disappear. Since the phase switching point of the left-eye shutter control signal 940 for controlling the polling of the shutter is synchronized with the synchronizing signal 930, the polling point and interval 957 of the shutter can be maintained unchanged.

The right eye shutter control signal 960 is a generated right eye shutter control signal when the display type information included in the synchronization signal 930 indicates the LCD TV. The right eye shutter control signal 960 is generated earlier by the interval 961 than the synchronization signal 930. [ Here, the interval 961 is a rising start time point at which the backlight unit is turned on at the time when the shutter starts to be risen, and is set at an interval for correcting the shutter start time point. . The interval 961 can be set to a difference value between the rising time 971 and the interval 973 of the shutter. The interval 973 may be an interval from the scan start point of the view image to the start point of the backlight unit.

For example, if the interval 931 is 8.33 ms, the interval 975 of the backlight unit scanning intervals 981, 982, and 983 is 7.91 ms, and the rising time 971 is 1.2 ms, ) Can be calculated as 0.42 ms, which is a difference value between 8.33 ms (931) and 7.91 ms (975). And the interval 961 can be calculated as 0.8 ms, which is a difference value between 1.2 ms (971) and 0.42 ms (973). That is, the right eye shutter control signal 960 can be pulled up by 0.8 ms ahead of the synchronizing signal 930, and the rising start time of the right eye shutter can be advanced by 0.8 ms.

 The right eye shutter control signal 960 is generated so that the interval from the phase switching point for controlling the shutter's rising to the next phase switching point (phase switching point for controlling the shutter's polling) is the interval 961 and the interval 931 . That is, the phase switching point for controlling the shuttering of the shutter of the right eye shutter control signal 960 is earlier than the phase switching point of the synchronizing signal 930, and the phase switching point for controlling the shuttering of the shutter is controlled by the phase shift of the synchronizing signal 930 And can be synchronized with the time.

A graph 970 shows the open / close state of the right eye shutter. According to the right eye shutter control signal 960, the rising start time of the right eye shutter is advanced by the interval 961, so that the opening size of the right eye lens becomes larger than before the rising time of the right eye shutter is earlier when the backlight unit is turned on, As a result, the luminance degradation phenomenon of the section 992 may disappear. Further, since the phase switching point of the right-eye shutter control signal 960 for controlling the polling of the shutter is synchronized with the synchronizing signal 930, the polling point and interval 977 of the shutter can be maintained unchanged.

10 is a view showing another embodiment of the shutter operation method of the shutter glasses.

Referring to FIG. 10, the formatter 580 may sample the stereoscopic image data to have the same arrangement as the LRL 1010. Here, L denotes a left eye view image frame, and R denotes a right eye view image frame.

The display 130 scans the stereoscopic image data 1010 sampled by the formatter 580. The image 1010 indicates the process of scanning the stereoscopic image data. In the image 1010, the horizontal axis represents the time axis, and the vertical axis represents the vertical position of the screen. Also, in the image 1010, a horizontal interval of one image frame means a time when one view image frame is scanned or a time displayed on the screen.

The synchronization signal 1020 indicates a synchronization signal transmitted from the three-dimensional image processing apparatus 110 to the shutter glasses 120. The interval 1021 may correspond to a time when one left eye view image frame L is scanned. For example, when the display vertical frequency is 120 Hz and the left eye view image frame L and the right eye view image frame R of the stereoscopic image data 910 are scanned at 60 Hz, respectively, the interval 1021 may be 8.33 ms have. The phase change point of the synchronization signal 1020 may correspond to a scan start point of the left eye view image L or a scan start point of the right eye view image R. [ That is, the phase switching point of the synchronizing signal 1020 becomes the phase switching point of the synchronizing signal 1020 when the scan of the left eye view image L starts, .

The left eye shutter control signal 1030 is a generated left eye shutter control signal when the display type information included in the synchronization signal 1020 indicates the PDP TV. The phase switching point for controlling shutter raising is synchronized with the phase switching point of the synchronizing signal 1020 during the phase switching time of the left eye shutter control signal 1030 and the phase switching point for controlling the shuttering is synchronized with the synchronizing signal 1020, (1031) from the phase change point of the phase shifter. Here, the interval 1031 may be set such that the time point at which the shuttering is completed is not passed to the scan time point of the right eye view image frame. The interval 1031 can be determined by the polling time of the shutter. If the polling time of the shutter is 0.5 ms, the interval 1031 can be 0.5 ms.

The graph 1040 shows the open / close state of the left eye shutter. Since the phase switching point of the left-eye shutter control signal 1030 controlling the shutter's raising is synchronized with the phase switching point of the synchronizing signal 1020, the rising point and the interval 1041 of the shutter can be maintained unchanged. Since the phase switching point of the left eye shutter control signal 1030 for controlling the polling of the shutter is earlier than the phase switching point of the synchronizing signal 1020, the polling interval 1043 of the left eye shutter is completed before the right eye view image frame is scanned So that the cross jaw areas 1071 and 1073 generated when the shutter polling is performed at the phase switching point of the synchronization signal 1020 can be made to disappear.

The right eye shutter control signal 1050 is a generated right eye shutter control signal when the display type information included in the synchronization signal 1020 indicates the PDP TV. The phase switching point for controlling the shutter raising is synchronized with the phase switching point of the synchronizing signal 1020 during the phase switching time of the right eye shutter control signal 1050 and the phase switching point for controlling the shuttering is synchronized with the synchronizing signal 1020, 1051 < / RTI > Here, the interval 1051 may be set so that the time point at which the shuttering is completed is not passed to the scan time point of the left eye view image frame. The interval 1051 can be determined by the polling time of the shutter. If the polling time of the shutter is 0.5 ms, the interval 1051 can be 0.5 ms.

The graph 1060 shows the open / close state of the right eye shutter. Since the phase switching point of the right eye shutter control signal 1060 for controlling the shutter's raising is synchronized with the phase switching point of the synchronizing signal 1020, the rising point and the interval 1061 of the shutter can be maintained as they are. Since the phase switching point of the right eye shutter control signal 1030 for controlling the polling of the shutter is earlier than the phase switching point of the synchronizing signal 1020, the polling interval 1063 of the right eye shutter is completed before the left eye view image frame is scanned So that the cross jaw area 1072 generated when the shutter polling is performed at the phase switching point of the synchronizing signal 1020 can be made to disappear.

11 is a view showing still another embodiment of the shutter operation method of the shutter glasses.

Referring to FIG. 11, the formatter 580 may sample the stereoscopic image data to have the same arrangement as the LRL. Here, L denotes a left eye view image frame, and R denotes a right eye view image frame.

The display 130 scans the stereoscopic image data LRL sampled by the formatter 580. The image 1110 indicates the process of scanning the stereoscopic image data. In the image 1110, the horizontal axis indicates the time axis, and the vertical axis indicates the vertical position of the screen. Also, in the image 1110, a horizontal interval 1113 of one image frame means a time when one view image frame is scanned. The display 130 scans the left eye view image frame and the right eye view image frame with a vertical blanking interval (VBI) 1115 between the left eye view image frame and the right eye view image frame.

The synchronization signal 1120 indicates a synchronization signal transmitted from the three-dimensional image processing apparatus 110 to the shutter glasses 120. The coincidence signal 1120 is an interval 1111 from the phase switching point to the next phase switching point. Here, the interval 1111 is an interval obtained by adding the interval 1113 and the vertical blanking interval 1115. The ratio of the interval 1113 occupying in the interval 1111 may be set equal to or less than 68% and the ratio of the interval 1115 occupying in the interval 1111 may be set equal to or greater than 38%. For example, when the display vertical frequency is 120 Hz and the left eye view image frame L and the right eye view image frame R of the stereoscopic image data 910 are scanned at 60 Hz, respectively, the interval 1111 may be 8.33 ms Interval 1113 may be 5.7 ms or less than 5.7 ms, and interval 1115 may be 2.7 ms or greater than 2.7 ms. The phase change point of the synchronization signal 1120 may correspond to the scan start point of the left eye view image L or the scan start point of the right eye view image R. [ The phase shift point of the synchronizing signal 1120 becomes the phase switching point of the synchronizing signal 1120 at the point of time when the scan of the left eye view image L starts, .

The left-eye shutter control signal 1130 is a generated left-eye shutter control signal when the display type information included in the synchronization signal 1120 indicates the LCD monitor. The phase switching time point for controlling the shuttering of the left eye shutter control signal 1130 is synchronized with the start time point of the VBI and the phase switching time point for controlling the shuttering of the shutter is switched to the phase switching point of the synchronizing signal 1120 Synchronized. Here, the interval 1131 may be defined as the interval 1115.

The right eye shutter control signal 1140 is a generated right eye shutter control signal when the display type information included in the synchronization signal 1120 indicates the LCD monitor. The phase switching point for controlling the shuttering of the right eye shutter control signal 1140 is synchronized with the starting point of the VBI and the phase switching point for controlling the shuttering of the shutter is switched to the phase switching point of the synchronizing signal 1120 Synchronized. Where the interval 1141 may be defined as the interval 1115.

FIG. 12 is a flowchart illustrating a method of controlling a shutter eyeglasses according to an exemplary embodiment of the present invention. Referring to FIG.

Referring to FIG. 12, the communication unit 610 receives a synchronization signal from the three-dimensional image processing apparatus 110 (S100). The received sync signal may include at least one of frame rate information and display type information. The received sync signal may be the beacon packet 200 shown in FIG.

The control unit 630 confirms the display type information included in the received synchronization signal (S110). The display type information may indicate one of an LCD (Liquid Crystal Display) TV, a PDP (Plasma Display Pane) TV, and an LCD (Liquid Crystal Display) monitor. Here, the controller 630 can further confirm the frame rate information included in the phase phone timing and the synchronization signal of the synchronization signal. The frame rate information may indicate a frame rate of a view image frame included in the 3D image or a vertical scanning frequency of the display device. The frame rate information may indicate a frame rate for displaying the three-dimensional image.

The control unit 630 controls the generation of the shutter control signal (S120). The control unit 630 can generate the shutter control signal, and the phase synchronizer 620 can generate the shutter control signal. The generated shutter control signal may include a left eye shutter control signal for controlling the opening and closing of the left eye shutter and a right eye shutter control signal for controlling opening and closing of the right eye shutter. That is, the control unit 630 can control the generation of the left eye shutter control signal and the right eye shutter control signal, respectively.

 If the display type information indicates the LCD (Liquid Crystal Display) TV, the control unit 630 determines that the phase switching point for controlling the opening of the left eye shutter is shorter than the phase switching point of the synchronizing signal received in step S100 It is possible to generate the left-eye shutter control signal ahead of time. The left-eye shutter control signal generated here may be the left-eye shutter control signal 950 in Fig. Also, the controller 630 can generate the right eye shutter control signal so that the phase switching point for controlling the opening of the right eye shutter is earlier than the phase switching point of the synchronizing signal received in step S100. The right eye shutter control signal generated here may be the right eye shutter control signal 970 of FIG.

When the display type information indicates a PDP (Plasma Display Panel) TV, the control unit 630 determines that the phase switching point for controlling the close of the left eye shutter is earlier than the phase switching point of the synchronizing signal received in step S100 So that the left-eye shutter control signal can be generated. The left-eye shutter control signal generated here may be the left-eye shutter control signal 1030 in Fig. Also, the controller 630 may generate the right eye shutter control signal so that the phase switching point for controlling the close of the right eye shutter is earlier than the phase switching point of the synchronizing signal received in step S100. The right eye shutter control signal generated here may be the right eye shutter control signal 1050 of FIG.

When the display type information indicates an LCD (Liquid Crystal Display) monitor, the controller 630 determines whether the phase switching point for controlling the opening of the left eye shutter is a vertical A phase switching point that is advanced by a blacking interval and controls the close of the left eye shutter may generate a left eye shutter control signal so as to be synchronized with the phase switching point of the synchronizing signal. The left-eye shutter control signal generated here may be the left-eye shutter control signal 1130 in Fig. In addition, the controller 630 advances the phase switching point for controlling the opening of the right eye shutter to the vertical switching interval at the phase switching point of the synchronizing signal received in step S100, the right eye shutter control signal can be generated in synchronization with the phase switching point of the synchronization signal. The right eye shutter control signal generated here may be the right eye shutter control signal 1140 of FIG.

The control unit 630 controls opening and closing of the shutter based on the generated shutter control signal (S130). The control unit 630 controls the opening and closing of the left eye shutter based on the left eye shutter control signal and controls the opening and closing of the right eye shutter based on the right eye shutter control signal. That is, the control unit 630 individually controls opening and closing of the left and right eye shutters.

13 is a flowchart illustrating a method of controlling the shutter glasses according to another embodiment of the present invention.

Referring to FIG. 13, the communication unit 610 transmits a first RF signal requesting pairing to the 3D image processing apparatus 110 (S200). The first RF signal may be transmitted by broadcasting and may be transmitted through a management frequency channel stored in the storage unit 650.

The 3D image processing apparatus 110 generates identification information in response to the reception of the first RF signal (S205). The identification information may be a Net ID or a MAC address for RF communication. Further, the identification information may be composed of a plurality of bits, and may be composed of one or more bytes.

The communication unit 610 receives the second RF signal informing the three-dimensional image processing apparatus 110 of the identification information (S210). Wherein the second RF signal can be transmitted in broadcast and transmitted in the management frequency channel.

The control unit 630 stores the identification information informed by the second RF signal in the storage unit 650 (S215).

The three-dimensional image processing apparatus 110 reproduces the three-dimensional image (S220). The 3D image processing apparatus 110 generates a synchronization signal for synchronizing the display time of the left eye view image or the right eye view image of the reproduced 3D image with the opening and closing time of the left eye lens or the right eye lens of the eyeglasses 120 . The synchronization signal may be one of the synchronization signal 930 of FIG. 9, the synchronization signal 1020 of FIG. 10, and the synchronization signal 1120 of FIG.

The communication unit 610 receives the third RF signal including the identification information from the three-dimensional image processing apparatus 110 (S225). Here, the received third RF signal may be a synchronization signal. And the third RF signal may be transmitted on a pairing frequency channel. For example, the third RF signal may be the beacon packet 200 shown in FIG.

The control unit 630 determines whether a part of the stored identification information and a part of the identification information included in the third RF signal are identical (S230). Here, the controller 630 can confirm whether a part of the stored identification definition and a part of the identification information included in the third RF signal are the same.

If not, the control unit 630 excludes the third RF signal.

In the same case, the controller 630 checks the synchronization point of the third RF signal, the frame rate information included in the third RF signal, and the display type information (S235). Here, the synchronization point of the third RF signal may be the phase switching point of the synchronization signal represented by the third RF signal. The display type information may indicate one of an LCD (Liquid Crystal Display) TV, a PDP (Plasma Display Pane) TV, and a LCD (Liquid Crystal Display) monitor. The frame rate information may indicate a frame rate of a view image frame included in the 3D image or a vertical scanning frequency of the display device. The frame rate information may indicate a frame rate for displaying the three-dimensional image.

The control unit 630 controls the shutter control signal to be generated based on the information confirmed in step S235 (S240). The control unit 630 can generate the shutter control signal, and the phase synchronizer 620 can generate the shutter control signal. The generated shutter control signal may include a left eye shutter control signal for controlling the opening and closing of the left eye shutter and a right eye shutter control signal for controlling opening and closing of the right eye shutter. That is, the control unit 630 can control the generation of the left eye shutter control signal and the right eye shutter control signal, respectively.

 When the display type information included in the third RF signal indicates the LCD (Liquid Crystal Display) TV, the controller 630 determines that the phase switching point for controlling the open of the left eye shutter is the third RF signal It is possible to generate the left eye shutter control signal ahead of the phase switching point of the synchronizing signal. The left-eye shutter control signal generated here may be the left-eye shutter control signal 950 in Fig. In addition, the controller 630 can generate a right eye shutter control signal such that the phase switching point for controlling the opening of the right eye shutter is earlier than the phase switching point of the synchronizing signal indicated by the third RF signal. The right eye shutter control signal generated here may be the right eye shutter control signal 970 of FIG.

When the display type information included in the third RF signal indicates a PDP (Plasma Display Panel) TV, the controller 630 determines whether the phase switching time for controlling the close of the left eye shutter is synchronized with the synchronization indicated by the third RF signal It is possible to generate the left eye shutter control signal ahead of the phase switching point of the signal. The left-eye shutter control signal generated here may be the left-eye shutter control signal 1030 in Fig. In addition, the controller 630 can generate the right eye shutter control signal such that the phase switching point for controlling the close of the right eye shutter is earlier than the phase switching point of the synchronizing signal indicated by the third RF signal. The right eye shutter control signal generated here may be the right eye shutter control signal 1050 of FIG.

When the display type information included in the third RF signal indicates an LCD (Liquid Crystal Display) monitor, the controller 630 determines that the phase switching point for controlling the opening of the left- The phase switching point is advanced by the vertical blanking interval at the phase switching point of the signal and the close of the left eye shutter is controlled so that the left eye shutter control signal is generated in synchronization with the phase switching point of the synchronous signal . The left-eye shutter control signal generated here may be the left-eye shutter control signal 1130 in Fig. In addition, the controller 630 may be configured such that the phase switching point for controlling the opening of the right eye shutter is advanced by a vertical blanking interval at the phase switching point of the synchronizing signal indicated by the third RF signal, The phase switching point for controlling the close operation can generate the right eye shutter control signal in synchronization with the phase switching point of the synchronizing signal. The right eye shutter control signal generated here may be the right eye shutter control signal 1140 of FIG.

The control unit 630 controls opening and closing of the shutter based on the generated shutter control signal (S245). The control unit 630 controls the opening and closing of the left eye shutter based on the left eye shutter control signal and controls the opening and closing of the right eye shutter based on the right eye shutter control signal. That is, the control unit 630 individually controls opening and closing of the left and right eye shutters.

The communication unit 610 receives the fourth RF signal including the identification information from the three-dimensional image processing apparatus 110 (S250). Here, the received fourth RF signal may be a synchronization signal including frame rate information and display type information. For example, the fourth RF signal may be the beacon packet 200 shown in FIG.

The control unit 630 determines whether a part of the stored identification information and a part of the identification information included in the fourth RF signal are identical (S255). Here, the controller 630 can confirm whether a part of the stored identification definition and a part of the identification information included in the fourth RF signal are the same.

If they are not the same, the control unit 630 excludes the fourth RF signal.

In the same case, the controller 630 confirms at least one of a synchronization point of the fourth RF signal, frame rate information included in the fourth RF signal, and display type information (S260). Here, the synchronization point of the fourth RF signal may be the phase switching point of the synchronization signal represented by the fourth RF signal.

The control unit 630 controls the shutter control signal to be corrected (S265). Here, the shutter control signal may be corrected according to the timing of the synchronization signal identified in step S260.

The present invention can also be embodied as computer-readable codes on a computer-readable recording medium. A computer-readable recording medium includes all kinds of recording apparatuses in which data that can be read by a computer apparatus is stored. Examples of the computer-readable recording medium include a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like, and may be implemented in the form of a carrier wave (for example, transmission via the Internet) . The computer-readable recording medium may also be distributed to networked computer devices so that computer readable code can be stored and executed in a distributed manner.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation in the embodiment in which said invention is directed. It will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.

Claims (15)

A display control unit that receives from a three-dimensional image processing apparatus frame rate information indicating a frame rate of a three-dimensional image processed by the three-dimensional image processing apparatus and display type information indicating a type of a display for displaying the processed three- Receiving a synchronization signal;
Generating a left eye shutter control signal for controlling the opening and closing of the left eye shutter and a right eye shutter control signal for controlling opening and closing of the right eye shutter based on the frame rate information and the display type information included in the received synchronization signal; And
And controlling opening and closing of the shutter based on the generated shutter control signal,
When the display type information indicates an LCD (Liquid Crystal Display) TV, the left eye shutter control signal is generated such that the phase switching time for controlling the opening of the left eye shutter is earlier than the phase switching time of the synchronizing signal Said method comprising the steps of: delete delete delete delete delete The method according to claim 1,
Wherein the interval at which the phase switching point is advanced is determined so as to correspond to an interval at which the rising of the left eye shutter is completed at a time point when the backlight unit is turned on or before the shutter is turned on Lt; / RTI > The method according to claim 1,
If the display type information indicates a PDP (Plasma Display Panel) TV,
Wherein the left eye shutter control signal is generated such that a phase switching point for controlling the close of the left eye shutter is earlier than a phase switching point of the synchronizing signal. delete The method according to claim 1,
When the display type information indicates an LCD (Liquid Crystal Display) monitor,
The left eye shutter control signal is generated by advancing a phase switching point for controlling the opening of the left eye shutter by a vertical blanking interval at a phase switching point of the synchronizing signal, Is synchronized with the phase switching point of the synchronizing signal. ≪ Desc / Clms Page number 19 > A display control unit that receives from a three-dimensional image processing apparatus frame rate information indicating a frame rate of a three-dimensional image processed by the three-dimensional image processing apparatus and display type information indicating a type of a display for displaying the processed three- A communication unit for receiving a synchronization signal; And
Eye shutter control signal for controlling the opening and closing of the left-eye shutter and the right-eye shutter control signal for controlling the opening and closing of the right-eye shutter based on the frame rate information and the display type information included in the received synchronization signal, And a control unit for controlling opening and closing of the shutter based on the generated shutter control signal,
Wherein,
When the display type information indicates an LCD (Liquid Crystal Display) TV, the left eye shutter control signal is generated such that the phase switching time for controlling the opening of the left eye shutter is earlier than the phase switching time of the synchronizing signal Features shutter glasses. delete delete delete delete

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