KR20110063934A - Display apparatus and control method thereof, and shutter glasses and control method thereof - Google Patents

Abstract

PURPOSE: A display device, control method thereof, shutter glasses, and control method thereof are provided to selectively open and close a left-eye unit and a right-eye unit of shutter glasses corresponding to an image of a display unit. CONSTITUTION: An image signal receiver(110) receives a three-dimensional image signal. An image signal processor(120) processes a left-eye image and a right-eye image on a display unit based on the received three-dimensional image signal. A communication unit(150) communicates with shutter glasses. The communication unit transmits a shutter control signal to the shutter glasses. The shutter control signal synchronizes opening and closing of left-eye image and a right-eye image.

Description

Display apparatus and control method thereof, shutter glasses and control method thereof {DISPLAY APPARATUS AND CONTROL METHOD THEREOF, AND SHUTTER GLASSES AND CONTROL METHOD THEREOF}

The present invention relates to a display apparatus for displaying a two-dimensional image or a three-dimensional image received from the outside, and a control method thereof, shutter glasses operating in response to the three-dimensional image displayed on the display apparatus and a control method thereof in detail. The present invention relates to a display apparatus, a control method thereof, a shutter glasses, and a control method related to a transmission structure of a shutter control signal generated and transmitted corresponding to a 3D image.

The display apparatus processes an input image signal input from an image source and displays it as an image on a display panel implemented with liquid crystal. In order to display an image on a panel, the display apparatus scans a scan line including image information on the panel, and the scanned scan lines are sequentially arranged on the panel to form one image frame.

The image displayed by the display device is classified into a 2D image and a 3D image according to its characteristics. The user has different viewing angles by both eyes and accordingly recognizes the three-dimensional solids of the object. According to this principle, the 3D image is divided into the left eye image and the right eye image and displayed alternately on the display apparatus, and the shutter glasses operating in response thereto are provided in the display apparatus.

When the user wears the shutter glasses when the 3D image is displayed on the display device, the shutter glasses selectively open or block both eyes of the user as the left eye image or the right eye image is displayed on the display apparatus. That is, when the left eye image is displayed, the user's left eye is opened, and when the right eye image is displayed, the user's right eye is opened, so that the user can recognize stereoscopic images of the 3D image.

A display apparatus according to an embodiment of the present invention, the display unit; A video signal receiver which receives a 3D video signal; An image signal processor configured to alternately display a left eye image and a right eye image based on the received 3D image signal; The left eye and the right eye communicate with shutter glasses that are selectively opened and closed, and a shutter control signal for synchronizing the opening and closing of the left eye and the right eye in response to the left eye image and the right eye image displayed on the display unit, respectively, is Zigbee. And a communication unit for transmitting to the shutter glasses based on a communication protocol.

Here, the communication unit may receive related data of the shutter glasses transmitted from the shutter glasses based on a Zigbee communication protocol.

The apparatus may further include a signal generator configured to generate the shutter control signal based on model information of the shutter glasses included in the related data of the shutter glasses received by the communication unit.

Here, the signal generator may transmit a request signal for requesting related data of the shutter glasses through the communication unit at the time when the 3D image signal is first processed by the image processor.

The shutter control signal may further include a signal generation unit configured to generate the shutter control signal. The signal generation unit may include a shutter control signal when a 2D image signal is received from the image signal receiver and a 2D image is displayed on the display unit. May not generate

In addition, the shutter glasses in communication with the display device according to an embodiment of the present invention, the left eye portion and the right eye portion corresponding to both eyes of the user; Communicating with a display device displaying a three-dimensional image including a left eye image and a right eye image, wherein shutter control signals corresponding to the left eye image and the right eye image displayed on the display apparatus are respectively transmitted from the display apparatus based on a Zigbee communication protocol. A shutter communication unit for receiving; And a shutter driver configured to selectively open and close the left eye part and the right eye part corresponding to each of the left eye image and the right eye image displayed on the display apparatus based on the shutter control signal received by the shutter communication unit. It is done.

The display apparatus may further include a memory configured to store related data of the shutter glasses, wherein the shutter communication unit receives the request signal for requesting the related data of the shutter glasses from the display apparatus, and displays the data stored in the memory. Can be sent to.

Here, the related data of the shutter glasses stored in the memory may include model information of the shutter glasses.

The shutter driver may open the left eye part and the right eye part when the shutter control signal is not received in the shutter communication part.

In addition, the control method of the display apparatus according to an embodiment of the present invention, the step of receiving a three-dimensional image signal; Alternately displaying a left eye image and a right eye image based on the received 3D image signal; And transmitting shutter control signals to the shutter glasses based on a Zigbee communication protocol to synchronize opening and closing of the left and right eyes of the shutter glasses with respect to each of the left eye images and the right eye images displayed alternately. It features.

The transmitting of the shutter control signal may include receiving related data of the shutter glasses transmitted from the shutter glasses based on a Zigbee communication protocol.

The transmitting of the shutter control signal may further include generating the shutter control signal based on model information of the shutter glasses included in the received related data of the shutter glasses.

The transmitting of the shutter control signal may further include transmitting a request signal for requesting related data of the shutter glasses at a point before the image corresponding to the 3D image signal is displayed.

In addition, receiving a two-dimensional image signal; The method may further include not generating the shutter control signal when the 2D image corresponding to the 2D image signal is displayed.

In addition, the control method of the shutter glasses in communication with the display device according to an embodiment of the present invention, from the display device for displaying a three-dimensional image including a left eye image and a right eye image, the left eye image and the right eye displayed on the display device Receiving a shutter control signal corresponding to each of the images based on the Zigbee communication protocol; And selectively opening and closing the left eye part and the right eye part corresponding to each of the left eye image and the right eye image displayed on the display apparatus based on the received shutter control signal.

Receiving a request signal for requesting related data of the shutter glasses from the display apparatus; The method may include transmitting related data of the shutter glasses previously stored in response to the request signal to the display apparatus.

Here, the related data of the shutter glasses may include model information of the shutter glasses.

The method may further include opening the left eye part and the right eye part when the shutter control signal is not received from the display device.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. In the following embodiments, only configurations directly related to the concept of the present invention will be described, and description of other configurations will be omitted. However, in the implementation of the display device 1 to which the idea of the present invention is applied, it does not mean that the configuration omitted from this description is not necessary.

1 is an exemplary view of a display system 1 according to an embodiment of the present invention.

As shown in FIG. 1, the display system 1 according to the present exemplary embodiment includes a display apparatus 100 for processing an image signal input from the outside and displaying the image as an image, and an image displayed on the display apparatus 100 includes three images. In the case of a 3D image, the shutter glasses 200 operate corresponding thereto.

The display apparatus 100 receives an image signal from an external image source, not shown. Such an image supply source is not limited, and the display apparatus 100 may generate a video signal with a CPU (not shown) and a graphics card (not shown) and provide the image signal locally. In addition, the video signal may be supplied from various video sources such as a server (not shown) capable of providing a video signal to a network, a broadcasting device (not shown) of a broadcasting station capable of transmitting a broadcast signal using a public wave or a cable.

As the display apparatus 1 receives a 2D image signal or a 3D image signal from the outside, the display apparatus 1 processes the same and displays the image. Here, unlike the 2D image, the 3D image is divided into a left eye image corresponding to the left eye of the user and a right eye image corresponding to the right eye of the user.

When the display apparatus 1 receives the 3D image signal, the display apparatus 1 alternately displays the left eye image and the right eye image in units of frames.

When the 3D image is displayed on the display apparatus 1, the shutter glasses 200 selectively opens or blocks the view of the user's left or right eye in response to whether the current left eye image or the right eye image is displayed. . That is, when the left eye image is displayed on the display apparatus 100, the shutter glasses 200 open the left eye's view and block the right eye's view. In contrast, when the right eye image is displayed on the display apparatus 100, the shutter glasses 200 open the right eye and block the left eye.

Hereinafter, each configuration of the display apparatus 100 and the shutter glasses 200 will be described with reference to FIG. 2. 2 is a block diagram illustrating a control relationship between the display apparatus 100 and the shutter glasses 200.

As shown in FIG. 2, the display apparatus 100 corresponds to an image signal receiver 110 that receives an image signal, and an image signal received by the image signal receiver 110 corresponds to any one of a 2D image and a 3D image. A video signal processor 120 for processing the video signal and a display unit 130 for displaying the video signal processed by the video signal processor 120 as an image.

In addition, according to the present exemplary embodiment, when the 3D image is displayed on the display unit 130, the display apparatus 100 generates a shutter control signal 140 that generates a shutter control signal corresponding thereto, and shutters the shutter control signal. The communication unit 150 communicates with the shutter glasses 200 so as to be transmitted to the glasses 200, and a control unit 160 for controlling the operations of these components.

Meanwhile, the shutter glasses 200 communicate with the communication unit 150 to receive a shutter control signal, a memory 220 storing predetermined data related to the shutter glasses 200, and open and close the left eye of the user. The left eye unit 230, the right eye unit 240 for opening and closing the user's right eye, and the shutter driver 250 for selectively opening and closing the left eye unit 230 and the right eye unit 240 based on the shutter control signal. do.

Hereinafter, each component is demonstrated.

The image signal receiver 110 receives the image signal and transmits the image signal to the image signal processor 120. The image signal receiver 110 may be implemented in various ways according to the standard of the received image signal and the implementation form of the display apparatus 100.

For example, when the display apparatus 100 is implemented as a TV, the image signal receiver 110 wirelessly receives a radio frequency (RF) signal transmitted from a broadcasting station (not shown), or composite video, component A video signal according to (component) video, super video, SCART, high definition multimedia interface (HDMI) standard, or the like may be received by wire. The video signal receiver 110 includes a tuner that tunes the broadcast signal for each channel when the video signal is a broadcast signal.

When the display device 1 is a computer monitor, the image signal receiver 110 may include a D-SUB capable of transmitting RGB signals according to a VGA method, or DVI-A (analog) or DVI- according to a DVI (digital video interactive) standard. It may be implemented in an integrated digital / analog (I), DVI-D (digital) or HDMI standard. Alternatively, the image signal receiver 110 may be implemented as a DisplayPort, a Unified Display Interface (UDI), or a Wireless HD.

The image signal processor 120 performs various preset image processing processes on the image signal. The image signal processor 120 performs this process and outputs an image signal to the display unit 130, thereby displaying an image on the display unit 130.

The type of image processing process performed by the image signal processing unit 120 is not limited. For example, decoding, encoding, de-interlacing, and frame refresh rate corresponding to various image formats may be performed. frame refresh rate conversion, scaling, noise reduction for improving image quality, detail enhancement, line scanning, and the like. The image signal processing unit 120 may be implemented in a separate configuration capable of independently performing each of these processes, or may be implemented in an integrated configuration incorporating various functions.

The image signal processor 120 processes the image signal into a plurality of horizontal scan lines for each frame and scans the image signal to the display 130. The image signal processing unit 120 scans an image from the upper side to the lower side of the display area of the display unit 130. When the scanning of one frame is completed, the image signal processing unit 120 scans the image of the next frame after the preset non-scanning time.

Since the image signal processor 120 does not scan the image during the non-scanning time, the display 130 displays a frame of the scanned image immediately before the non-scanning time.

When the image signal processor 120 receives an image signal corresponding to the 3D image from the image signal receiver 110, the image signal processor 120 alternately scans the image signal corresponding to the left eye image and the right eye image to the display 130. Therefore, the image displayed on the display unit 130 during the non-scanning time is a left eye image or a right eye image formed by the image signal processor 120 immediately before the non-scanning time.

The display 130 is implemented as a liquid crystal display panel, and the image signal processed by the image signal processor 120 is displayed as an image. The display unit 130 may display one image frame by vertically arranging a plurality of horizontal scan lines scanned from the image signal processor 120.

When the image displayed on the display 130 is a 3D image, the signal generator 140 generates a shutter control signal synchronized with display timings of the left and right eye images displayed on the display 130. The shutter control signal corresponds to the display period of the 3D image displayed on the display 130.

The communicator 150 transmits the shutter control signal generated by the signal generator 140 to the shutter glasses 200 at an appropriate timing under the control of the controller 160.

When the communication unit 150 transmits the shutter control signal, conventionally, a method of transmitting the shutter control signal to the shutter glasses 200 in an infrared manner is applied. However, such an infrared communication unit 150 may occur in the following cases.

Infrared communication has a short communication distance, high signal directivity, and communication is impossible when there is an obstacle on the communication path. Therefore, when the user wears the shutter glasses 200 having such a configuration, the user should point the field of view toward the display apparatus 100 while the 3D image is displayed. If the user turns his head for a while, the shutter glasses 200 may not operate while the infrared communication is interrupted. Alternatively, someone may interfere with the transmission of the shutter control signal while passing through the communication path.

In this case, the shutter glasses 200 do not operate in correspondence with each of the left eye image and the right eye image displayed on the display unit 130, and the left eye unit 230 and the right eye unit 240 open and close at inappropriate timings, thereby flickering. ) May occur.

In addition, when various home appliances including the display apparatus 100 use a remote controller (not shown) using an infrared method, the shutter glasses 200 may malfunction when the paths of the infrared communication overlap. have. As such, the conventional infrared communication unit 150 has various limitations in use.

According to the present embodiment, the communication unit 150 transmits the shutter control signal to the shutter glasses 200 based on the Zigbee communication protocol. The Zigbee communication protocol is one of the IEEE 802.152.4 standards supporting near field communication. Communication is performed in three frequency bands of 868-870 MHz, 902-928 MHz, and 2.4-2.4835 MHz. The Zigbee communication protocol can transmit data at a rate of 250 Kbps within a radius of 30 meters, and has the advantages of low power consumption, low production cost, and easy device miniaturization compared to other wireless communication technologies.

In addition, the Zigbee communication protocol is omnidirectional, unlike infrared. Therefore, when the shutter glasses 200 are within a communication range, the communicator 150 may transmit a shutter control signal regardless of the position of the shutter glasses 200 or an obstacle.

In addition, since the Zigbee communication protocol is capable of bidirectional communication, the communication unit 150 may receive predetermined data from the shutter glasses 200.

When the image displayed on the display 130 is a 3D image, the controller 160 controls the signal generator 140 and the communicator 150 to control the left eye 230 and the right eye of the shutter glasses 200. The 240 may be selectively opened and closed in response to the image displayed on the display 130.

Unlike the 3D image, the 2D image has no distinction between the left eye image and the right eye image. Thus, when the image displayed on the display 130 is a 2D image, the controller 160 prevents the shutter control signal from being generated by the signal generator 140.

Hereinafter, when the 3D image is displayed on the display unit 130, the controller 160 controls the generation and transmission of the shutter control signal with reference to FIG. 3. 3 is a duty ratio graph illustrating an example of a display of a 3D image and a shutter control signal corresponding thereto.

The horizontal axis of the graph shown in FIG. 3 represents time, and each graph represents a state change with time.

Graphs (1) and (2) of FIG. 3 show a viewpoint and a section in which a left eye image and a right eye image are displayed on the display unit 130, respectively.

Graph (3) of Fig. 3 shows shutter control signals generated corresponding to graphs (1) and (2).

The graph (4) of FIG. 4 shows an image displayed for each time period by combining the graphs (1) and (2).

The image signal transmitted from the image signal receiver 110 is processed by the image signal processor 120 and displayed as an image on the display 130. When displaying the 3D image, the image signal processing unit 120 displays the left eye image first in a predetermined order, for example, and then displays the right eye image.

In the drawing, when the view point at which the 3D image is displayed is S, the left eye image L1 is first displayed from the view point S, and then the right eye image R1, then the left eye image L2, and the right eye image R2 are sequentially displayed. Is displayed. That is, the left eye image and the right eye image are alternately displayed from the viewpoint S in time.

Blank sections B1, B2, and B3 exist between each of L1, R1, L2, and R2, which are sections in which the image signal processor 120 scans the left or right eye image on the display 130. The blank section is a section in which no image is scanned on the display unit 130, and in this section, an image scanned during the previous scan section is displayed.

That is, during the blank period B1, the left eye image L1 is displayed on the display 130. A right eye image R1 is displayed during B2 and a left eye image L2 is displayed during B3.

Based on the above description, the shutter control signal generated by the signal generation unit 140 represents 0 during the image scanning sections L1, R1, L2, and R2, and 1 during the blank sections B1, B2, B3.

When the shutter control signal generated as described above is transmitted to the shutter communication unit 210 through the communication unit 150, the shutter driver 250 may operate the left eye unit 230 and the right eye unit 240 in a preset order according to the time point S. FIG. Open and close.

In detail, the shutter driver 250 closes the left eye 230 and the right eye 240 during the L1, R1, L2, and R2 sections. The shutter driver 250 opens only the left eye 230 during the B1 and B3 sections, and opens only the right eye 240 during the B2 sections.

However, since the left eye part 230 and the right eye part 240 have a liquid crystal configuration, a minute time delay is required in order for the left eye part 230 and the right eye part 240 to be completely opened or blocked by the shutter driver 250, respectively. Occurs. Such a time delay may be mutually different depending on model characteristics of the shutter glasses 200.

Accordingly, the control unit 160 before the time point S when the 3D image is displayed on the display unit 130, that is, when the image signal corresponding to the 3D image starts to be processed by the image signal processor 120, the communication unit ( The request signal for requesting the relevant data of the shutter glasses 200 is transmitted through 150.

If the related data of the shutter glasses 200 is information indicating the characteristics of the shutter glasses 200, the contents thereof are not limited. For example, the related information of the shutter glasses 200 may include model information of the shutter glasses 200.

When the shutter communication unit 210 of the shutter glasses 200 receives such a request signal, the shutter communication unit 210 calls model information of the shutter glasses 200 stored in the memory 220 and transmits the model information to the communication unit 150. The shutter communication unit 210 may include a microcontroller to automatically transmit the above information when a request signal is received.

When the controller 160 receives model information from the shutter glasses 200, the controller 160 controls the signal generator 140 to generate a shutter control signal in consideration of characteristics of the shutter glasses 200 based on the model information. For example, the signal generator 140 has setting values for various factors to be considered when generating the shutter control signal, and adjustment values for adjusting the setting values correspond to various models of the shutter glasses 200. Is stored. When the model information of the shutter glasses 200 is received, the signal generator 140 may generate a shutter control signal by offsetting an adjustment value corresponding to the model information to the set value.

The above configuration is possible by performing bidirectional communication between the communication unit 150 and the shutter communication unit 210 based on the Zigbee communication protocol.

On the other hand, when the image displayed on the display 130 is a two-dimensional image, the signal generator 140 does not generate a shutter control signal. If the shutter control unit 250 does not receive a shutter control signal through the shutter communication unit 210, the shutter driver 250 opens the left eye 230 and the right eye 240 to view a 2D image displayed on the display 130. To be able.

As such, by transmitting the shutter control signal transmitted from the display apparatus 100 displaying the 3D image to the shutter glasses 200 based on the Zigbee communication protocol, power consumption can be reduced and installation limitations can be overcome. . In addition, by allowing the model information of the shutter glasses 200 to be transmitted to the display apparatus 100 through bidirectional communication based on the Zigbee communication protocol, the shutter control signal may be generated based on the model characteristics of the shutter glasses 200. .

Hereinafter, a method of controlling the display apparatus 100 according to the present embodiment will be described with reference to FIG. 4. 4 is a control flowchart illustrating this process.

The video signal receiver 110 receives a video signal from the outside (S100). The video signal is transmitted to the video signal processor 120, and the controller 160 checks whether the video signal corresponds to the 3D image (S110).

When it is confirmed as an image signal corresponding to the 3D image, the controller 160 transmits a request signal for requesting model information of the shutter glasses 200 to the shutter glasses 200 through the communication unit 150 (S120).

The controller 160 checks whether model information data of the shutter glasses 200 is received for a predetermined time (S130).

When the model information data is received, the controller 160 adjusts the setting value of the signal generator 140 referenced when generating the shutter control signal based on the model information (S140). On the other hand, if the model information data is not received for a predetermined time, the controller 160 adjusts the set value to the default value (S150). The signal generator 140 generates a shutter control signal with reference to the adjusted setting value (S160).

The left eye image and the right eye image are alternately displayed on the display 130 by the image signal processor 120 (S170). The controller 160 transmits the shutter control signal to the shutter glasses 200 at an appropriate timing through the communication unit 150 (S180). Accordingly, the left eye 230 and the right eye 240 of the shutter glasses 200 are selectively opened and closed in correspondence with the left eye image and the right eye image displayed on the display 130.

On the other hand, if it is determined in step S110 that the video signal does not correspond to the 3D image, the video signal processor 120 processes the video corresponding to the video signal to be displayed (S190). At this time, the signal generator 140 does not generate a shutter control signal.

Hereinafter, a method of controlling the shutter glasses 200 will be described with reference to FIG. 5. 5 is a control flowchart illustrating this process.

As shown in FIG. 5, in the initial state in which the system power of the shutter glasses 200 is turned on, the shutter communication unit 210 receives a request signal for requesting model information of the shutter glasses 200 from the display apparatus 100. Check whether or not (S200).

When the model information request signal is received, the communication unit 150 transmits model information data stored in the memory 220 to the display apparatus 100 (S210). In addition, the communication unit 150 checks whether a shutter control signal is received from the display apparatus 100 (S220).

When the shutter control signal is received by the communicator 150, the shutter driver 250 selectively opens and closes the left eye 230 and the right eye 240 based on the shutter control signal (S230). On the other hand, if the shutter control signal is not received by the communicator 150, the shutter driver 250 opens the left eye 230 and the right eye 240 (S240).

The above-described embodiments are merely illustrative, and various modifications and equivalents may be made by those skilled in the art. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the invention described in the claims below.

1 is an exemplary view of a display system according to an embodiment of the present invention;

FIG. 2 is a block diagram illustrating a display device and shutter glasses in the display system of FIG. 1;

3 is a duty ratio graph illustrating an example of a 3D image displayed on a display apparatus and a shutter control signal corresponding thereto in the display system of FIG. 1;

4 is a control flowchart of a display apparatus according to an embodiment of the present invention;

5 is a control flowchart of the shutter glasses according to the embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

1: display system 100: display device

110: video signal receiver 120: video signal processor

130: display unit 140: signal generation unit

150: communication unit 160: control unit

200: shutter glasses 210: shutter communication unit

220: memory 230: left eye

240: right eye part 250: shutter drive part

Claims (18)

In the display device, A display unit; A video signal receiver which receives a 3D video signal; An image signal processor configured to alternately display a left eye image and a right eye image based on the received 3D image signal; The left eye and the right eye communicate with shutter glasses that are selectively opened and closed, and a shutter control signal for synchronizing the opening and closing of the left eye and the right eye corresponding to each of the left eye image and the right eye image displayed on the display unit is Zigbee. And a communication unit for transmitting to the shutter glasses based on a communication protocol. The method of claim 1, And the communication unit is capable of receiving related data of the shutter glasses transmitted from the shutter glasses based on a Zigbee communication protocol. The method of claim 2, And a signal generator configured to generate the shutter control signal based on model information of the shutter glasses included in the related data of the shutter glasses received by the communication unit. The method of claim 3, wherein The signal generation unit, And a request signal for requesting the relevant data of the shutter glasses through the communication unit when the 3D image signal is first processed by the image processor. The method of claim 1, Further comprising a signal generator for generating the shutter control signal, The signal generation unit, And a shutter control signal is not generated when a 2D video signal is received from the video signal receiver and a 2D video is displayed on the display. In the shutter glasses in communication with the display device, A left eye part and a right eye part corresponding to both eyes of a user; Communicating with a display device displaying a three-dimensional image including a left eye image and a right eye image, wherein shutter control signals corresponding to the left eye image and the right eye image displayed on the display apparatus are respectively transmitted from the display apparatus based on a Zigbee communication protocol. A shutter communication unit for receiving; And a shutter driver configured to selectively open and close the left eye part and the right eye part corresponding to each of the left eye image and the right eye image displayed on the display apparatus based on the shutter control signal received by the shutter communication unit. Shutter glasses. The method of claim 6, Further comprising a memory for storing the relevant data of the shutter glasses, And the shutter communication unit transmits the data stored in the memory to the display apparatus when receiving the request signal for requesting the related data of the shutter glasses from the display apparatus. The method of claim 7, wherein And the related data of the shutter glasses stored in the memory includes model information of the shutter glasses. The method of claim 6, The shutter driver, And the left eye part and the right eye part are opened when the shutter control signal is not received in the shutter communication part. In the control method of the display device, Receiving a 3D video signal; Alternately displaying a left eye image and a right eye image based on the received 3D image signal; And transmitting shutter control signals to the shutter glasses based on a Zigbee communication protocol to synchronize opening and closing of the left and right eyes of the shutter glasses with respect to each of the left eye images and the right eye images displayed alternately. The control method of the display device characterized in that. The method of claim 10, The step of transmitting the shutter control signal, Receiving related data of the shutter glasses transmitted from the shutter glasses based on a Zigbee communication protocol. The method of claim 11, The step of transmitting the shutter control signal, And generating the shutter control signal based on the model information of the shutter glasses included in the related data of the shutter glasses. The method of claim 12, The step of transmitting the shutter control signal, And transmitting a request signal for requesting related data of the shutter glasses at a point before the image corresponding to the 3D image signal is displayed. The method of claim 10, Receiving a two-dimensional image signal; And not generating the shutter control signal when a 2D image corresponding to a 2D image signal is displayed. In the control method of the shutter glasses in communication with the display device, Receiving a shutter control signal corresponding to each of the left eye image and the right eye image displayed on the display apparatus from a display apparatus displaying a three-dimensional image including a left eye image and a right eye image based on a Zigbee communication protocol; And selectively opening and closing the left eye portion and the right eye portion corresponding to each of the left eye image and the right eye image displayed on the display apparatus, based on the received shutter control signal. . The method of claim 15, Receiving a request signal for requesting related data of the shutter glasses from the display device; And transmitting related data of the shutter glasses previously stored in response to the request signal to the display apparatus. The method of claim 16, The related data of the shutter glasses includes model information of the shutter glasses. The method of claim 15, And opening the left eye part and the right eye part when the shutter control signal is not received from the display device.

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