KR20130016685A - Shutter glasses, method for controlling shutter glasses, device for processing 3 dimensional image - Google Patents

Abstract

PURPOSE: Shutter glasses for common use in various kinds of 3d(three dimensional) display devices, a method for controlling the shutter glasses and a 3D image processing apparatus for the same are provided to control opening and closing of a shutter according to the characteristics of the various kinds of three dimensional display devices, by generating a shutter control signal based on display type information. CONSTITUTION: A communications unit receives a synchronizing signal from a 3D image processing apparatus(S100). A control unit checks display type information included in the received synchronizing signal(S110). The control unit controls the generation of a shutter control signal(S120). The control unit controls opening and closing of a shutter based on the generated shutter control signal(S130). [Reference numerals] (AA) Start; (BB) End; (S100) Receiving a synchronizing signal; (S110) Checking display type information; (S120) Generating a shutter control signal; (S130) Controlling opening and closing of a shutter based on the generated shutter control signal

Description

Shutter glasses, method for controlling shutter glasses, device for processing 3 dimensional image}

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, shutter glasses for controlling the opening and closing of the shutter glasses in accordance with the display of the reproduced three-dimensional image, shutter 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 content for digital broadcasting is increasing rapidly. In addition to the content for displaying a two-dimensional (2D) video signal as a two-dimensional image as a content for digital broadcasting, content that displays a three-dimensional (3D) video signal as a three-dimensional image is produced and It is planned.

The technology for displaying a 3D image uses the principle of binocular parallax, in which an observer feels a three-dimensional feeling due to binocular disparity, and is classified into a glasses method, a glasses-free method, a full three-dimensional method, and the like. The glasses method refers to a method in which a viewer wears glasses having a special function in order to watch a stereoscopic image. The glasses may be classified into two types, a shutter glass method in which left and right are alternately opened and a polarization method in which circular polarizing plates in opposite directions are mounted on the spectacle lens parts.

Various types of 3D display apparatuses for displaying a 3D image by a shutter glass method have been released. However, there is no shutter glasses that can be used in common between each 3D display device, so there is a problem of early manufacturing and purchasing separately.

An object of the present invention is to provide a shutter glasses that can be commonly used in various types of 3D display device.

Another object of the present invention is to provide a method and a three-dimensional image processing apparatus for controlling the shutter glasses to use the shutter glasses commonly used in various types of 3D display device.

Another object of the present invention is to provide a shutter glasses that can control the opening and closing of the shutter according to the characteristics of the 3D display apparatus, a method for controlling the shutter glasses, and a 3D image processing apparatus.

It is another object of the present invention to provide shutter glasses, a method for controlling shutter glasses, and a three-dimensional image processing apparatus, which prevent luminance degradation of a 3D image and prevent crosstalk when viewing a 3D image. There is.

In order to achieve the above technical problem, a method for controlling shutter glasses according to the present invention includes frame rate information indicating a frame rate of a 3D image processed by the 3D image processing apparatus from a 3D image processing apparatus. And receiving a synchronization signal including display type information indicating a type of a display displaying the processed 3D image, the shutter control signal based on the frame rate information and the display type information included in the received synchronization signal. And generating 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 further 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 viewpoint 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 a Liquid Crystal Display (LCD) TV, a Plasma Display Pane (PDP) TV, and a Liquid Crystal Display (LCD) monitor.

The generating of the shutter control signal may include generating a left eye shutter control signal for controlling 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 such that the phase shifting time for controlling the opening of the left eye shutter is earlier than the phase shifting time of the synchronization signal. Can be.

The interval at which the phase shifting point is advanced may be determined to correspond to an interval for causing the rising of the left eye shutter to be completed at or before the backlight unit is turned on.

When the display type information indicates a plasma display panel (PDP) TV, the left eye shutter control signal is generated such that a phase shift point of time controlling the close of the left eye shutter is earlier than the phase shift point of the synchronization signal. Can be.

The interval at which the phase shift timing is advanced may be determined to correspond to an interval for causing the falling of the left eye shutter to be completed at or before the phase shift timing of the synchronization signal.

When the display type information indicates an LCD (Liquid Crystal Display) monitor, the left eye shutter control signal has a vertical blacking at a phase shift point of controlling the opening of the left eye shutter. The phase shift time point, which is generated by being advanced by a vertical blanking interval and controls the close of the left eye shutter, may be generated in synchronization with the phase shift time point of the synchronization signal.

In order to achieve the above technical problem, the shutter glasses according to the present invention, frame rate information indicating the frame rate of the three-dimensional image processed by the three-dimensional image processing apparatus from the three-dimensional image processing apparatus and the processed Generating a shutter control signal based on a communication unit receiving a synchronization signal including display type information indicating a type of a display displaying a 3D image, and frame rate information and display type information included in the received synchronization signal; The controller may include a control unit for controlling opening and closing of the shutter based on the generated shutter control signal. Here, the synchronization signal may be a beacon packet further 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 viewpoint 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 a Liquid Crystal Display (LCD) TV, a Plasma Display Pane (PDP) TV, and a Liquid Crystal Display (LCD) monitor.

The shutter control signal may include a left eye shutter control signal for controlling 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 such that the phase shifting time for controlling the opening of the left eye shutter is earlier than the phase shifting time of the synchronization signal. Can be.

The interval at which the phase shifting point is advanced may be determined to correspond to an interval for causing the rising of the left eye shutter to be completed at or before the backlight unit is turned on.

When the display type information indicates a plasma display panel (PDP) TV, the left eye shutter control signal is generated such that a phase shift point of time controlling the close of the left eye shutter is earlier than the phase shift point of the synchronization signal. Can be.

The interval at which the phase shift timing is advanced may be determined to correspond to an interval for causing the falling of the left eye shutter to be completed at or before the phase shift timing of the synchronization signal.

When the display type information indicates an LCD (Liquid Crystal Display) monitor, the left eye shutter control signal has a vertical blacking at a phase shift point of controlling the opening of the left eye shutter. The phase shift time point, which is generated by being advanced by a vertical blanking interval and controls the close of the left eye shutter, may be generated in synchronization with the phase shift time point of the synchronization signal.

According to another aspect of the present invention, there is provided a three-dimensional image processing apparatus comprising: a receiver configured to receive a three-dimensional image, a video decoder to decode the received three-dimensional image, and a scaler to scale the decoded three-dimensional image. A synchronization signal including a formatter for sampling the scaled 3D image, frame rate information indicating a frame rate of the sampled 3D image, and display type information indicating a type of a display displaying the 3D image; It may include a communication unit for transmitting. Here, the synchronization signal may be a beacon packet further 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 viewpoint 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 a Liquid Crystal Display (LCD) TV, a Plasma Display Pane (PDP) TV, and a Liquid Crystal Display (LCD) monitor.

The 3D image processing apparatus may further include a display configured to display the sampled 3D image.

The 3D 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 based on the generated shutter control signal. It may further include a shutter glasses for opening and closing the.

The shutter control signal may include a left eye shutter control signal for controlling 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 such that the phase shifting time for controlling the opening of the left eye shutter is earlier than the phase shifting time of the synchronization signal. Can be.

The interval at which the phase shifting point is advanced may be determined to correspond to an interval for causing the rising of the left eye shutter to be completed at or before the backlight unit is turned on.

When the display type information indicates a plasma display panel (PDP) TV, the left eye shutter control signal is generated such that a phase shift point of time controlling the close of the left eye shutter is earlier than the phase shift point of the synchronization signal. Can be.

The interval at which the phase shift timing is advanced may be determined to correspond to an interval for causing the falling of the left eye shutter to be completed at or before the phase shift timing of the synchronization signal.

When the display type information indicates an LCD (Liquid Crystal Display) monitor, the left eye shutter control signal has a vertical blacking at a phase shift point of controlling the opening of the left eye shutter. The phase shift time point, which is generated by being advanced by a vertical blanking interval and controls the close of the left eye shutter, may be generated in synchronization with the phase shift time point of the synchronization signal.

According to another aspect of the present invention, there is provided a method for controlling shutter glasses, the method comprising: receiving a 3D image, decoding the received 3D image, scaling the decoded 3D image And sampling the scaled 3D image, frame rate information indicating a frame rate of the sampled 3D image, and display type information indicating a type of a display displaying the sampled 3D image. Generating a synchronization signal, and transmitting the generated synchronization signal to the shutter glasses. Here, the synchronization signal may be a beacon packet further 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 viewpoint 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 a Liquid Crystal Display (LCD) TV, a Plasma Display Pane (PDP) TV, and a Liquid Crystal Display (LCD) 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 a shutter control signal based on display type information, various types of 3D display devices are provided. It is possible to control the opening and closing of the shutter according to the characteristics of, to provide shutter glasses that can be used commonly in various types of 3D display devices, and to control the left eye shutter and right eye shutter individually according to the characteristics of the 3D display device, When viewing the 3D image, it is possible to prevent a decrease in luminance of the 3D image and to prevent crosstalk.

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

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

Referring to FIG. 1, the multimedia system 100 may include a 3D image processing apparatus 110, glasses 120, and a display 130. 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 personal digital assistant (PDA), a portable multimedia player (PMP), a navigation device, or the like. It may be a device.

The 3D image processing apparatus 110 may be a multimedia apparatus capable of playing multimedia data stored in a storage medium, and may be a broadcast receiver capable of receiving a broadcast signal and decoding multimedia data included in the received broadcast signal. The multimedia data may include stereoscopic images as well as two-dimensional images. The stereoscopic image may be a 2-view image or a multi-view image. The multi-view image refers to a plurality of images obtained by photographing the same subject with a plurality of cameras having a certain distance or angle, and define images obtained by each camera as viewpoint images. The broadcast signal may be transmitted through terrestrial waves, satellites, and cables.

The 3D image processing apparatus 110 may transmit a synchronization signal to the shutter glasses 120. The synchronization signal may be a signal for adjusting the opening / closing time of the left eye shutter or the right eye shutter of the shutter glasses 120.

The transmitted synchronization signal may include at least one of frame rate information and display type information. The frame rate information may be information indicating a frame rate of the stereoscopic image, and may be information indicating a frame rate of the viewpoint image included in 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 scan frequency may be one of 240 Hz, 120 Hz, 60 Hz, 59.94 Hz, and 50 Hz.

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

The shutter glasses 120 may transmit an RF signal requesting pairing to the 3D image processing apparatus 110 and receive an RF signal informing identification information from the 3D 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 to exclude the received RF signal or input an RF signal according to the comparison result. The synchronization signal may be included in the RF signal and transmitted.

In addition, the shutter glasses 120 may generate a shutter control signal for controlling opening and closing times of the left eye shutter and the right eye shutter based on the received synchronization signal, and opening and closing the left eye shutter and the right eye shutter based on the generated shutter control signal. You can control the viewpoint. 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 may generate a left eye shutter control signal and a right eye shutter control signal based on the received synchronization signal, respectively, and may control an open period of the left eye shutter based on the generated left eye shutter control signal. An open cycle of the right eye shutter may be controlled based on the generated right eye shutter control signal. That is, the shutter glasses 120 may individually control opening and closing times of the left eye shutter and the right eye shutter.

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 so that the shutter open time, the open period, and the open period are controlled differently.

The display 130 may be a device capable of displaying a 3D image. The display 130 may be a liquid crystal display (LCD) TV, a plasma display panel (PDP) TV, or an LCD monitor. In addition, 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 and sold as a separate product.

FIG. 2 is a diagram illustrating a preferred embodiment of the structure of a beacon packet.

Referring to FIG. 2, the synchronization signal may be a beacon packet. Beacon packet 200 is a length field (Length), identification information (Net ID), status field (Status), hopping channel field (CH (A), CH (B), CH (C), CH (D)) , An information field (Information), a received signal strength indication field (RSI) and a link quality indicator field (Link Quality Indicator CRC: LQI CRC). The beacon packet 200 may have a variable size and may have a fixed size. For example, the beacon packet 200 may be configured 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 (Length) includes information indicating 17 bytes. The length field may consist of 1 byte.

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

The status field may include information indicating whether the 3D image processing apparatus 110 is processing a 3D image. The status field may be configured as 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, CH (B) field, CH (C) field, and CH (D) field may include a frequency hopping channel. In addition, the CH (A) field, the CH (B) field, the CH (C) field, and the CH (D) field may each consist of 1 byte. Here, the hopping order may be performed in the order of the CH (A) field, CH (B) field, CH (C) field, CH (D) field.

The information field may include at least one of frame rate information and display type information, and may include 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.

FIG. 3 is a diagram illustrating 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 receive a beacon packet 321. After 3 ms from the start of transmission of the beacon packet, the 3D image processing apparatus 110 may wait to receive the remote data 312 from the remote controller. The 3D image processing apparatus 110 may perform a channel scan 313. Here, the 3D image processing apparatus 110 may perform a channel scan 6 ms after the start point of the beacon packet transmission. In addition, the 3D image processing apparatus 110 may scan 32 channels and check the channel status.

The 3D image processing apparatus 110 transmits the beacon packet 314, and the shutter glasses 120 receive the beacon packet 322. Here, the beacon packet 322 may be transmitted after 8.33 ms from the start of the transmission of the beacon packet 321. That is, the beacon packet may be transmitted in 8.33ms period.

4 is a view 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 in a 16.66 ms period. In some embodiments, the shutter glasses 120 may control opening and closing of the shutter according to the transmitted synchronization signal. For example, the shutter glasses 120 controls the left eye shutter to open in a section between the transmission start time 411 of the synchronization signal 410 and the phase shift time 412, and the phase shift time 412 and the next transmission. The right eye shutter is controlled to be turned off in the interval between the start time points 413.

The sync 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 sync signal 410.

For example, two beacon packets may be transmitted as one synchronization signal. The transmission start time of the beacon packet 421 may be interpreted as the transmission start time 411 of the synchronization signal, and the transmission start time of the beacon packet 422 may be interpreted as the phase shift time 412 of the synchronization signal. Here, if the period of the beacon packet is set to 8.33ms, the synchronization signal is transmitted in 16.6ms period. That is, the interval between the transmission start time 411 and the phase shift time 412 becomes 8.33 ms, and the interval between the phase shift time 412 and the next transmission start time 413 becomes 8.33 ms, and the synchronization signal is 16.6 ms. do. Therefore, the transmission start time of the beacon packet 421 may be used to control the opening time of the left eye shutter. In addition, the transmission start time of the beacon packet 422 may be used to control the closing time of the left eye shutter and may be used to control the opening time of the right eye shutter.

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

Referring to FIG. 5, the 3D image processing apparatus 110 may include a tuner unit 505, a demodulator 510, a demultiplexer 515, a network interface unit 520, an external signal input unit 525, and a video decoder. 530, audio decoder 535, control unit 540, storage unit 545, scaler 550, mixer 560, frame rate converter (FRC) 570, formatter a formatter 580 and a communication unit 590.

The tuner 505 selects an RF broadcast signal corresponding to a channel selected by a user from among RF (Radio Frequency) broadcast signals received through an antenna, and converts the selected RF broadcast signal into an intermediate frequency signal or a baseband video or audio signal. To convert. The tuner 505 may receive an RF broadcast signal of a single carrier according to an Advanced Television System Committee (ATSC) scheme or an RF broadcast signal of multiple carriers according to a digital video broadcasting (DVB) scheme.

The demodulator 510 receives the digital IF signal DIF converted by the tuner 505 and performs a demodulation operation. For example, when the digital IF signal output from the tuner 505 is an ATSC scheme, the demodulator 510 performs 8-VSB (8-Vestigial Side Band) demodulation. As another example, when the digital IF signal output from the tuner 505 is a DVB scheme, the demodulator 510 performs coded orthogonal frequency division modulation (COFDMA) demodulation.

In addition, the demodulator 510 may perform channel decoding. To this end, the demodulator 510 includes a trellis decoder, a de-interleaver, a reed solomon decoder, and the like. Soloman decryption can be performed.

The demodulator 510 may output a stream signal TS after performing demodulation and channel decoding. In this case, the stream signal may be a signal multiplexed with a video signal, an audio signal, or a data signal. For example, the stream signal may be an MPEG-2 Transport Stream (TS) multiplexed with an MPEG-2 standard video signal, a Dolby AC-3 standard audio signal, and the like. Specifically, the MPEG-2 TS may include a header of 4 bytes and a payload of 184 bytes.

The demultiplexer 515 may receive a stream signal from the demodulator 510, the network interface unit 520, and the external signal input unit 525. In addition, the demultiplexer 515 may demultiplex the received stream signal into a video signal, an audio signal, and a data signal and output the demultiplexer 530, an audio decoder 535, and a controller 540, respectively.

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

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

The network interface unit 520 receives the 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 a service providing server through a network.

When the IP packet includes the 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 and the 3D image processing apparatus 110. Here, the external device refers to various kinds of video or audio output devices such as a digital versatile disk (DVD), a Blu-ray, a game device, a camcorder, a computer (laptop), and the like. The 3D image processing apparatus 110 may control to display the image signal and the audio signal received from the external signal input unit 525, and may store or use the data signal.

The controller 540 executes a command and performs an operation associated with the 3D image processing apparatus 110. For example, using the command retrieved from the storage unit 545, the controller 540 may control input and output and reception and processing of data between components of the 3D image processing apparatus 110. The controller 540 may be implemented on a single chip, multiple chips, or multiple electrical components. For example, various architectures may be used for the control unit 540, including dedicated or embedded processors, single purpose processors, controllers, ASICs, and the like. In addition, the controller 540 may include at least one process.

The controller 540 executes computer code together with an operating system to generate and use data. In addition, the controller 540 controls the display of the broadcast service based on the broadcast information included in the data signal output by the demultiplexer 515 and stores the broadcast information in the storage 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 Window based OS, Unix, Linux, Palm OS, DOS, Android, Macintosh, and the like. The operating system, other computer code, and data may reside in storage 545 that operates in conjunction with control 540.

The storage unit 545 generally provides a place for storing program code and data used by the 3D image processing apparatus 110. For example, the storage unit 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 3D image processing apparatus 110 as needed. Removable storage media herein include CD-ROMs, PC-CARDs, memory cards, floppy disks, magnetic tape, and network components.

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

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

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

In addition, the scaler 550 may apply image quality setting values (eg, color, sharpness, etc.) applied to display a stereoscopic image to the left 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 controller 540, and the scaler 550 may control a left eye view image according to a stereoscopic image signal to display a predetermined image quality setting value under the control of the controller 540. Applies to the right eye view image and outputs them respectively. In addition, an operation of applying a predetermined image quality setting value to a left eye view image and a right eye view image according to a stereoscopic image signal to be displayed may be performed by the formatter 580 instead of the scaler 550.

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

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

Each method described above may be appropriately selected according to the format of an input stereoscopic image and performed by the FRC 570. Hereinafter, the display vertical frequency is defined as a vertical scan frequency that displays or outputs an image frame configured in the formatter 580 on the display 130.

The formatter 580 converts the video and audio signals output from the mixer 560 according to the output format of the display 130. Here, when displaying the 2D image, 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 which processes the stereoscopic image in a 3D format according to the format of the stereoscopic image and the display vertical frequency according to the control of the controller 540.

In addition, the formatter 580 may output the converted image signal to the display 130 to implement a stereoscopic image, and output a vertical synchronization signal Vsync indicating the display vertical frequency to the display 130. In addition, the formatter 580 may generate a synchronization signal corresponding to the display vertical frequency and output the synchronization signal to the communication unit 590, and the communication unit 590 may output the synchronization signal output from the formatter 580 to the shutter glasses 120. send. The shutter glasses 120 may adjust 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 bidirectional omnidirectional (or nondirectional) communication means, and performs wireless communication with other communication devices in 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, and the communication device may be a 3D image processing apparatus 110. And shutter glasses 120.

The communication unit 590 may transmit a beacon packet to the shutter glasses 120. The beacon packet may be the beacon packet 200 shown in FIG. 2. In some embodiments, the controller 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 the two beacon packets 200 in the manner described above with reference to FIG. 4.

In another embodiment, the controller 540 may generate the beacon packet 200 and control the communication unit 590 to 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 the two beacon packets 200 in the manner described above with reference to FIG. 4.

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

Referring to FIG. 6, the shutter glasses 120 may include a communication unit 610, a phase looked look block (PLL block) 620, a control unit 630, a lens unit 640, and a storage unit 650. It may include.

The communication unit 610 is a communication module that provides bidirectional omnidirectional (or nondirectional) communication means. The communication unit 610 may perform wireless communication with the 3D image processing apparatus 110 in 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 (Wireless Lan).

The communication unit 610 may transmit a first RF signal for requesting pairing to the 3D image processing apparatus 110 and receive a second RF signal informing identification information from the 3D image processing apparatus 110. In addition, the communication unit 610 may receive a third RF signal including identification information and a synchronization signal. In this case, the winter signal included in the third RF signal may include at least one of frame rate information and display type information. In addition, the third RF signal may be the beacon packet 200 shown in FIG. 2.

The phase synchronizer 620 may provide the controller 630 with a clock CLK having a frequency corresponding to the synchronization signal received by the communicator 610. The controller 630 may control the opening / closing time of the left eye shutter or the right eye shutter in synchronization with the clock CLK. In addition, the phase synchronizer 620 may generate a shutter control signal under the control of the controller 630.

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

The controller 630 may store the identification information indicated by the second RF signal in the storage 650. When the third RF signal is received, the controller 630 compares the identification information included in the third RF signal with the stored identification information. The controller 630 may exclude the third RF signal according to a comparison result, and input the third RF signal.

The controller 630 may control the opening and closing of the left eye shutter and the right eye shutter of the lens unit 640 according to the synchronization signal transmitted from the 3D image processing apparatus 110. Specifically, when the display 130 displays the left eye view image, the controller 630 controls opening and closing of the left eye shutter and the right eye shutter 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 glasses user. When the display 130 displays the right eye view image, the controller 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 passes the light. Accordingly, the right eye view image is transmitted only to the right eye of the user.

The controller 630 may control the shutter control signal to be generated based on the synchronization signal. The controller 630 may directly generate the shutter control signal, and the phase synchronizer 620 may generate the shutter control signal under the control of the controller 630.

The storage unit 650 may store information about a frequency band. The shutter glasses 120 may transmit and receive a signal with the 3D image processing apparatus 110 through a frequency band indicated by the stored information. The information on the frequency band may include information indicating a management frequency channel and information indicating a pairing frequency channel. A management frequency channel may be used to transmit the first RF signal and receive the second RF signal in a pairing process, and a pairing frequency channel may be set in a pairing process. When pairing is completed, the RF signal between the 3D image processing apparatus 110 and the shutter glasses 120 may be transmitted through a pairing frequency channel. For example, the third RF signal may be transmitted through 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 terminal operating a diode that operates when an applied voltage of about 5V to 25V is not applied, respectively. In some embodiments, the left eye shutter and the right eye shutter may be opened when the potential difference 0V is applied by the control unit 630, respectively, and closed when the potential difference ± 15V is applied. When the left eye shutter is opened, light is transmitted to the left eye lens, and when the left eye shutter is closed, light incident to the left eye lens is blocked. In addition, when the right eye shutter is opened, light is transmitted to the right eye lens, and when the right eye shutter is closed, light incident to 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 may 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. Can be.

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

The counter 720 may 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. The right eye timing signal may be a signal shifted 180 degrees from the phase of 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. Opening and closing of the left eye shutter of the lens unit 640 may be controlled by the supplied voltage. In addition, the lens driver 730 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 may be controlled by the supplied voltage.

8 is a diagram illustrating a preferred embodiment of a shutter control signal.

Referring to FIG. 8A, the controller 710 or the phase synchronizer 620 may generate the shutter control signal 810 based on at least one of phase shift timing, frame rate information, and display type information of the sync signal. Can be. The shutter control signal 810 is used to simultaneously control the opening and closing of the left eye shutter and the right eye shutter of the shutter glasses 120. The shutter glasses 120 control the left eye shutter to be opened at the time point 811 of the generation of the shutter control signal 810 and control to close the right eye shutter, and the left eye shutter at the phase switching time point 813 of the shutter control signal 810. Control to close and the right eye shutter to open. Accordingly, the left eye shutter is kept open at all or at least one portion of the interval between the transmission start time point 811 and the phase shift time point 813.

In addition, the shutter glasses 120 controls the left eye shutter to open at the phase shift time 815 of the shutter control signal 810 and closes the right eye shutter. Accordingly, the right eye shutter is kept open at all or at least one portion of the section between the phase shift time 813 and the phase shift time 815.

The present invention generates a shutter control signal based on the display type information, and controls the opening and closing of the left eye shutter and the right eye shutter according to the generated shutter control signal, so that the shutter can be opened and closed in accordance with the three-dimensional image display characteristics of the display device. It is possible to provide shutter glasses commonly used in various display devices.

8B and 8C, the controller 710 or the phase synchronizer 620 receives the left eye shutter control signal 820 and the right eye shutter control signal 830 based on the display type information, respectively. Can be generated.

The left eye shutter control signal 820 is for controlling 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. By generating the left eye shutter control signal and the right eye shutter control signal, respectively, the present invention can individually control the opening and closing of the left eye shutter and the right eye shutter of the shutter glasses 120. Accordingly, in the present invention, the left eye shutter and the right eye shutter of the shutter glasses 120 may be in an open state and a closed state at the same time, and may open another shutter when one shutter is in an open state. When one shutter is in the open state, the other shutter can be closed. Therefore, the present invention separately controls the left eye shutter and the right eye shutter according to the characteristics of the 3D display device, thereby preventing the degradation of the brightness of the 3D image and preventing the occurrence of crosstalk when viewing the 3D image.

The shutter glasses 120 controls the left eye shutter to open at the transmission start time 821 of the left eye shutter control signal 820, and closes the left eye shutter at the phase shifting point 821 of the left eye shutter control signal 820. do. Accordingly, the left eye shutter remains open at all or at least one portion of the interval between the transmission start time point 821 and the phase shift time point 823. In addition, the shutter glasses 120 control the left eye shutter to be opened at the phase shift time 825 of the left eye shutter control signal 820. Accordingly, the left eye shutter is kept closed in the section between the phase shift time 823 and the phase shift time 825.

The shutter glasses 120 controls the right eye shutter to close at the transmission start time 831 of the right eye shutter control signal 830, and controls the right eye shutter to open at the phase shifting time 831 of the right eye shutter control signal 830. do. Accordingly, the right eye shutter is closed in a section between the transmission start time point 831 and the phase shift time point 833. In addition, the shutter glasses 120 control the right eye shutter to be closed at the phase shift time 835 of the right eye shutter control signal 830. Accordingly, the right eye shutter is kept open at all or at least one portion of the section between the phase shift time 833 and the phase shift time 835.

9 is a diagram illustrating an embodiment of a shutter operation method of shutter glasses.

Referring to FIG. 9, the formatter 580 may sample stereoscopic image data to have the same arrangement as that of the LBRBLBRB 910. Here, L means a left eye view image frame, B means a black image frame including black data, and R means a right eye view image frame. The black data may refer to pixel data having a pixel value of zero.

The display 130 scans the stereoscopic image data 910 sampled by the formatter 580. The image 920 represents a process in which stereoscopic image data 910 is scanned. In the 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 represents the time duration of light in the pixel when the image frame is scanned from above on the vertical axis of 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 there is a time for the light to persist in the pixel and the pixel data of the next view image frame starts to be displayed on the top of the screen, the pixel data of the previous image frame is continuously displayed on the screen frame.

The synchronization signal 930 represents a synchronization signal transmitted by the 3D image processing apparatus 110 to the shutter glasses 120. The interval 931 may correspond to the time when one left eye view image frame L and one black are scanned. 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 each scanned at 60 Hz, the interval 931 may be 8.33 ms. In addition, the phase shift timing of the synchronization signal 930 may correspond to the scan start timing of the left eye view image L or the scan start time of the right eye view image R. FIG. In other words, the phase shift point of the synchronization signal 930 becomes a point of time when the scanning of the left eye view image L is started, and the phase shift point of the sync signal 930 becomes a point of time when the scanning of the right eye view image R starts. Can be.

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 by the interval 941 than the synchronization signal 930. Here, the interval 941 is a rising start time point at which the backlight unit is turned on at the end of rising of the shutter, and is set as an interval for correcting the rising time point of the shutter. Can be done. The interval 941 may be determined as a difference between the rising time 951 of the shutter and the interval 953. The interval 953 may be an interval from a start point of scanning of the viewpoint image to a start point of turning on 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, then the interval 953 is It may be calculated as 0.42 ms, which is a difference between 8.33 ms (931) and 7.91 ms (955). The interval 941 may be calculated as 0.8 ms, which is a difference between 1.2 ms (951) and 0.42 ms (953). That is, the left eye shutter control signal 940 may be pulled 0.8 ms ahead of the synchronization signal 930, and the rising start time of the left eye shutter may be advanced by 0.8 ms.

The left eye shutter control signal 940 has an interval from the phase shift point controlling the rising of the shutter to the next phase shift point (the phase shift point controlling the falling of the shutter). May be generated. That is, the phase shift point of time for controlling the rising of the shutter of the left eye shutter control signal 940 is earlier than the phase shift point of the sync signal 930, and the phase shift point of controlling the falling of the shutter is the sync signal 930. It can be synchronized with the phase shift time of.

The graph 950 shows the open / close state of the left eye shutter. According to the left eye shutter control signal 940, the rising start time of the left eye shutter is advanced by the interval 941, so that the opening size of the left eye lens is larger than before the rising start time of the left eye shutter at the time when the backlight unit is turned on. Accordingly, the luminance deterioration phenomenon of the periods 991 and 993 may disappear. Since the phase shift timing of the left eye shutter control signal 940 controlling the polling of the shutter is synchronized with the synchronization signal 930, the polling timing and the interval 957 of the shutter may be maintained.

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 point at which the back light unit is turned on at the end of rising of the shutter, and is set as an interval for correcting the rising point of the shutter start. Can be done. The interval 961 may be determined by a difference value between the rising time 971 of the shutter and the interval 973. The interval 973 may be an interval from a start point of scanning of the viewpoint image to a start point of turning on the backlight unit.

For example, when 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, the interval 973. ) May be calculated as 0.42 ms, which is a difference between 8.33 ms (931) and 7.91 ms (975). The interval 961 may be calculated as 0.8 ms, which is a difference between 1.2 ms (971) and 0.42 ms (973). That is, the right eye shutter control signal 960 may be pulled 0.8 ms ahead of the synchronization signal 930, and the rising start time of the right eye shutter may be advanced by 0.8 ms.

 The right eye shutter control signal 960 is generated such that the interval from the phase shift point controlling the rising of the shutter to the next phase shift point (the phase shift point controlling the polling of the shutter) is the interval 961 and the interval 931. Can be. That is, the phase shifting time for controlling the rising of the shutter of the right eye shutter control signal 960 is earlier than the phase shifting time of the synchronizing signal 930, and the phase shifting time for controlling the polling of the shutter is phase shifting of the synchronization signal 930. It can be synchronized with the viewpoint.

Graph 970 shows the open / closed 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 is larger than before the rising start time of the right eye shutter at the time when the backlight unit is turned on. Accordingly, the luminance deterioration phenomenon of the section 992 may disappear. In addition, since the phase shift timing of the right eye shutter control signal 960 controlling the polling of the shutter is synchronized with the synchronization signal 930, the polling timing and the interval 997 of the shutter may be maintained.

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

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

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

The synchronization signal 1020 indicates a synchronization signal transmitted by the 3D image processing apparatus 110 to the shutter glasses 120. The interval 1021 may correspond to the 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 each scanned at 60 Hz, the interval 1021 may be 8.33 ms. have. In addition, the phase shift timing of the synchronization signal 1020 may correspond to the scan start timing of the left eye view image L or the scan start time of the right eye view image R. FIG. That is, the phase shift point of the synchronization signal 1020 becomes a point in time at which the scanning of the left eye view image L is started, and the phase shift point of the sync signal 1020 is at the point in time when the scanning of the right eye view point image R is started. Can be.

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 shift point of time for controlling the rising of the shutter among the phase shift points of the left eye shutter control signal 1030 is synchronized with the phase shift point of the synchronization signal 1020, and the phase shift point of controlling the polling of the shutter is the synchronization signal 1020. It is generated by an interval 1031 earlier than the phase transition time of. In this case, the interval 1031 may be determined so that the timing at which the shutter is completed is not transferred to the scan timing of the right eye view image frame. The interval 1031 may be determined by the polling time of the shutter. If the polling time of the shutter is 0.5ms, the interval 1031 may be 0.5ms.

The graph 1040 shows the open / close state of the left eye shutter. Since the phase shift timing of the left eye shutter control signal 1030 controlling the rising of the shutter is synchronized with the phase shift timing of the synchronization signal 1020, the rising timing and interval 1041 of the shutter may be maintained. Since the phase shift point of the left eye shutter control signal 1030 controlling the polling of the shutter is advanced before the phase shift point of the synchronization signal 1020, the polling section 1043 of the left eye shutter may be completed before the right eye view image frame is scanned. The cross-tuck regions 1071 and 1073 generated when the shutter polling is performed at the phase shift time of the synchronization signal 1020 may 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 shift timing for controlling the rising of the shutter among the phase shift timings of the right eye shutter control signal 1050 is synchronized with the phase shift timing of the synchronization signal 1020, and the phase shift timing for controlling the polling of the shutter is the synchronization signal 1020. Is generated by an interval 1051 earlier than the phase transition time of. In this case, the interval 1051 may be determined such that the timing at which the shutter is completed is not transferred to the scanning timing of the left eye view image frame. The interval 1051 may be determined by the polling time of the shutter. If the polling time of the shutter is 0.5ms, the interval 1051 may be 0.5ms.

The graph 1060 shows the open / close state of the right eye shutter. Since the phase shift timing of the right eye shutter control signal 1060 controlling the rising of the shutter is synchronized with the phase shift timing of the synchronization signal 1020, the rising timing and interval 1061 of the shutter may be maintained. Since the phase shift point of the right eye shutter control signal 1030 controlling the polling of the shutter is earlier than the phase shift point of the synchronization signal 1020, the polling section 1063 of the right eye shutter may be completed before the left eye view image frame is scanned. The cross-tuck region 1072 generated when the shutter polling is performed at the phase shift time of the synchronization signal 1020 may be disappeared.

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

Referring to FIG. 11, the formatter 580 may sample stereoscopic image data to have an LRL-like arrangement. Here, L means a left eye view image frame, and R means a right eye view image frame.

The display 130 scans the stereoscopic image data LLR sampled by the formatter 580. The image 1110 illustrates a process in which stereoscopic image data is scanned. In the image 1110, the horizontal axis refers to the time axis and the vertical axis refers to the vertical position of the screen. Also, in the image 1110, the horizontal interval 1113 of one image frame means a time when one viewpoint 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 by the 3D image processing apparatus 110 to the shutter glasses 120. In the synchronization signal 1120, the interval from the phase shift time to the next phase shift time is the interval 1111. Here, the interval 1111 is an interval obtained by adding up the interval 1113 and the vertical blanking interval 1115. In addition, the ratio of the interval 1113 to the interval 1111 may be set equal to or smaller than 68%, and the ratio of the interval 1115 to the interval 1111 may be set equal to or larger 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 each scanned at 60 Hz, the interval 1111 may be 8.33 ms. And the interval 1113 may be 5.7 ms or less than 5.7 ms, and the interval 1115 may be 2.7 ms or greater than 2.7 ms. In addition, the phase shift time point of the synchronization signal 1120 may correspond to the scan start time point of the left eye view image L or the scan start time point of the right eye view image R. FIG. That is, when the scanning of the left eye view image L starts, the phase shift point of the synchronization signal 1120 becomes a phase shift point, and when the scanning of the right eye view image R starts, the phase shift point of the synchronization signal 1120 shifts. Can be.

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. Among the phase shifting points of the left eye shutter control signal 1130, the phase shifting point for controlling the rising of the shutter is synchronized with the start point of VBI, and the phase shifting point for controlling the polling of the shutter is at the phase shifting point of the synchronization signal 1120. Are motivated. Here, the interval 1131 may be determined 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. Among the phase shifting points of the right eye shutter control signal 1140, the phase shifting point for controlling the rising of the shutter is synchronized with the start point of the VBI, and the phase shifting point for controlling the polling of the shutter is at the phase shifting point of the synchronization signal 1120. Are motivated. Here, the interval 1141 may be defined as the interval 1115.

12 is a flowchart illustrating a preferred embodiment of the method for controlling the shutter glasses according to the present invention.

Referring to FIG. 12, the communication unit 610 receives a synchronization signal from the 3D image processing apparatus 110 (S100). The received synchronization signal may include at least one of frame rate information and display type information. In addition, the received synchronization signal may be the beacon packet 200 shown in FIG. 2.

The controller 630 checks display type information included in the received synchronization signal (S110). The display type information may indicate one of a Liquid Crystal Display (LCD) TV, a Plasma Display Pane (PDP) TV, and a Liquid Crystal Display (LCD) monitor. In this case, the controller 630 may further check the phase shift timing of the synchronization signal and the frame rate information included in the synchronization signal. The frame rate information may indicate a frame rate of a viewpoint image frame included in the 3D image or a vertical scan frequency of the display device. The frame rate information may indicate a frame rate for displaying the 3D image.

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

 When the display type information indicates the LCD (Liquid Crystal Display) TV, the controller 630 controls that the phase shifting time for controlling the opening of the left eye shutter is greater than the phase shifting time of the synchronization signal received in step S100. The left eye shutter control signal may be generated to be advanced. The left eye shutter control signal generated here may be the left eye shutter control signal 950 of FIG. 9. In addition, the controller 630 may generate the right eye shutter control signal so that the phase shifting time for controlling the opening of the right eye shutter is advanced earlier than the phase shifting time of the synchronization signal received in step S100. The right eye shutter control signal generated here may be the right eye shutter control signal 970 of FIG. 9.

When the display type information indicates a plasma display panel (PDP) TV, the control unit 630 advances the phase shift point of time controlling the close of the left eye shutter earlier than the phase shift point of the synchronization signal received in step S100. Fork 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 of FIG. 10. In addition, the controller 630 may generate the right eye shutter control signal such that the phase shifting time for controlling the close of the right eye shutter is earlier than the phase shifting time of the synchronization signal received in step S100. The right eye shutter control signal generated here may be the right eye shutter control signal 1050 of FIG. 10.

When the display type information indicates an LCD (Liquid Crystal Display) monitor, the controller 630 determines that the phase shifting time for controlling the opening of the left eye shutter is vertical when the phase shifting time of the synchronization signal received in step S100. The left eye shutter control signal may be generated in synchronization with the phase shift time of the synchronization signal, which is advanced by a vertical blanking interval and controls the close of the left eye shutter. The left eye shutter control signal generated here may be the left eye shutter control signal 1130 of FIG. 11. In addition, the controller 630 advances the phase shifting time for controlling the opening of the right eye shutter by the vertical blanking interval at the phase shifting time of the synchronization signal received in step S100, and closes the right eye shutter. The right eye shutter control signal may be generated in synchronization with the phase change time point of the synchronization signal. The right eye shutter control signal generated here may be the right eye shutter control signal 1140 of FIG. 11.

The controller 630 controls the opening and closing of the shutter based on the generated shutter control signal (S130). The controller 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 controller 630 individually controls the opening and closing of the left eye shutter and the right eye shutter.

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

Referring to FIG. 13, the communication unit 610 transmits a first RF signal for requesting pairing to the 3D image processing apparatus 110 (S200). Here, 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. In addition, the identification information may consist of a plurality of bits, and may consist of one or more bytes.

The communication unit 610 receives a second RF signal informing identification information from the 3D image processing apparatus 110 (S210). The second RF signal may be transmitted by broadcasting and may be transmitted through the management frequency channel.

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

The 3D image processing apparatus 110 reproduces the 3D image (S220). The 3D image processing apparatus 110 may generate a synchronization signal for synchronizing the display viewpoint of the left eye view image or the right eye view image of the reproduced 3D image with the opening / closing view of the left eye lens or the right eye lens of the glasses 120. Can be. The sync signal may be one of the sync signal 930 of FIG. 9, the sync signal 1020 of FIG. 10, and the sync signal 1120 of FIG. 11.

The communication unit 610 receives a third RF signal including identification information from the 3D image processing apparatus 110 (S225). Here, the received third RF signal may be a synchronization signal. The third RF signal may be transmitted through a pairing frequency channel. For example, the third RF signal may be the beacon packet 200 shown in FIG. 2.

The controller 630 checks whether a part of the stored identification information and a part of the identification information included in the third RF signal are the same (S230). Herein, the controller 630 may check whether a part of the stored identification well and a part of the identification information included in the third RF signal are the same.

If not the same, the controller 630 excludes the third RF signal.

In the same case, the controller 630 checks the synchronization time point of the third RF signal, the frame rate information and the display type information included in the third RF signal (S235). Here, the synchronization point of the third RF signal may be a phase shift timing of the synchronization signal indicated by the third RF signal. The display type information may indicate one of a liquid crystal display (LCD) TV, a plasma display pane (PDP) TV, and a liquid crystal display (LCD) monitor. The frame rate information may indicate a frame rate of a viewpoint image frame included in the 3D image or a vertical scan frequency of the display device. The frame rate information may indicate a frame rate for displaying the 3D image.

The controller 630 controls the shutter control signal signal to be generated based on the information identified in step S235 (S240). The controller 630 may generate a shutter control signal, and the phase synchronizer 620 may generate a shutter control signal. The generated shutter control signal may include a left eye shutter control signal for controlling 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 controller 630 may 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 liquid crystal display (LCD) TV, the control unit 630 indicates that the phase switching time point for controlling the opening of the left eye shutter is indicated by the third RF signal. The left eye shutter control signal may be generated to be earlier than the phase shift timing of the synchronization signal. The left eye shutter control signal generated here may be the left eye shutter control signal 950 of FIG. 9. In addition, the controller 630 may generate the right eye shutter control signal so that the phase shifting time for controlling the opening of the right eye shutter is earlier than the phase shifting time of the synchronization 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. 9.

When the display type information included in the third RF signal indicates a plasma display panel (PDP) TV, the control unit 630 may synchronize the phase switching time point of controlling the close of the left eye shutter with the third RF signal. The left eye shutter control signal may be generated to be earlier than the phase shifting point of the signal. The left eye shutter control signal generated here may be the left eye shutter control signal 1030 of FIG. 10. In addition, the controller 630 may generate the right eye shutter control signal so that the phase shifting time for controlling the close of the right eye shutter is earlier than the phase shifting time of the synchronization 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. 10.

When the display type information included in the third RF signal indicates a liquid crystal display (LCD) monitor, the control unit 630 may synchronize the phase switching timing for controlling the opening of the left eye shutter by the third RF signal. The left eye shutter control signal is advanced by the vertical blanking interval at the phase shift point of the signal, and the phase shift point for controlling the close of the left eye shutter is synchronized with the phase shift point of the sync signal. Can be. The left eye shutter control signal generated here may be the left eye shutter control signal 1130 of FIG. 11. In addition, the control unit 630 advances the phase shifting time for controlling the opening of the right eye shutter by a vertical blanking interval at the phase shifting point of the synchronization signal indicated by the third RF signal, The phase shift timing for controlling the close may be generated by the right eye shutter control signal in synchronization with the phase shift timing of the synchronization signal. The right eye shutter control signal generated here may be the right eye shutter control signal 1140 of FIG. 11.

The controller 630 controls the opening and closing of the shutter based on the generated shutter control signal (S245). The controller 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 controller 630 individually controls the opening and closing of the left eye shutter and the right eye shutter.

The communication unit 610 receives a fourth RF signal including identification information from the 3D 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. 2.

The controller 630 checks whether a part of the stored identification information and a part of the identification information included in the fourth RF signal are the same (S255). Here, the controller 630 may check whether a part of the stored identification well and a part of the identification information included in the fourth RF signal are the same.

If not the same, the controller 630 excludes the fourth RF signal.

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

The controller 630 controls the shutter control signal to be corrected (S265). In this case, 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 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 displaying the processed 3D image from a 3D image processing apparatus; Receiving a synchronization signal;
Generating 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. The method of claim 1,
The synchronization signal is,
And a beacon packet further comprising at least one of identification information, status information, and hopping channel information. The method of claim 1,
And wherein the frame rate is one of a frame rate of a viewpoint image frame included in the three-dimensional image, a frame rate for displaying the three-dimensional image, and a vertical scanning frequency of the display. The method of claim 1,
The display type is one of a liquid crystal display (LCD) TV, a plasma display pane (PDP) TV, and a liquid crystal display (LCD) monitor. The method of claim 1,
Generating the shutter control 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 the opening and closing of the right eye shutter. 6. The method of claim 5,
When the display type information indicates an LCD (Liquid Crystal Display) TV,
And the left eye shutter control signal is generated such that a phase shifting time for controlling the opening of the left eye shutter is earlier than a phase shifting time of the synchronization signal. The method according to claim 6,
The interval at which the phase shifting point is advanced is controlled so that the rising of the left eye shutter corresponds to the interval for allowing the backlight unit to be completed at or before the backlight unit is turned on. How to. 6. The method of claim 5,
When the display type information indicates a plasma display panel (PDP) TV,
And the left eye shutter control signal is generated such that a phase shift point of time controlling a close of the left eye shutter is earlier than a phase shift point of the synchronization signal. The method of claim 8,
The interval at which the phase shifting point is advanced is determined to correspond to an interval for causing the falling of the left eye shutter to be completed at or before the phase shifting point of the synchronization signal. Way. The method of claim 1,
When the display type information indicates a liquid crystal display (LCD) monitor,
The left eye shutter control signal is generated by a phase shifting point of time controlling the opening of the left eye shutter being advanced by a vertical blanking interval at a phase shifting point of the synchronization signal, and closing the left eye shutter. ) Is a phase shift time point for controlling the shutter glasses, characterized in that generated in synchronization with the phase shift time point of the synchronization signal. A 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 displaying the processed 3D image from a 3D image processing apparatus; A communication unit for receiving a synchronization signal; And
And a controller for controlling generation of 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. Shutter glasses. Receiving unit for receiving a three-dimensional image;
A video decoder for decoding the received 3D image;
A scaler for scaling the decoded three-dimensional image;
A formatter for sampling the scaled 3D image; And
And a communication unit configured to transmit a synchronization signal including frame rate information indicating a frame rate of the sampled 3D image and display type information indicating a type of a display displaying the 3D image. Image processing device. 13. The method of claim 12,
And a display configured to display the sampled three-dimensional image. 13. The method of claim 12,
Receiving the synchronization signal, generates a shutter control signal based on the frame rate information and display type information included in the received synchronization signal, and further comprises a shutter glasses for opening and closing the shutter based on the generated shutter control signal 3D image processing apparatus, characterized in that. Receiving a 3D image;
Decoding the received 3D image;
Scaling the decoded three-dimensional image;
Sampling the scaled three-dimensional image;
Generating a synchronization signal including frame rate information indicating a frame rate of the sampled 3D image and display type information indicating a type of a display displaying the sampled 3D image; And
And transmitting the generated synchronization signal to the shutter glasses.

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