KR20120004673A - Operating method of display system outputting 3 dimensional contents and display system enabling of the method - Google Patents

Abstract

PURPOSE: An operating method of a display system outputting 3D content and a display system enabling of the method are provided to shorten an image output time according to a power on command. CONSTITUTION: A display device receives a power on command(S601). Corresponding to the power on command, the display device compulsorily sets the output mode of image data to a 2D output mode(S602). The display device bypasses the 3D formatter during outputting the image data(S603). If a 3D output mode set command is received, the display device sets the output mode of image data as a 3D output mode(S604,S605).

Description

Operation method of a display device that outputs three-dimensional content and a display device employing the method {OPERATING METHOD OF DISPLAY SYSTEM OUTPUTTING 3 DIMENSIONAL CONTENTS AND DISPLAY SYSTEM ENABLING OF THE METHOD}

The present invention relates to a method of operating a display device for outputting 3D content and a display device employing the method. More particularly, the present invention relates to a 2D mode when a power supply is turned on in a display device for outputting 3D content. A method of operating a display device that reduces time and a display device employing the method.

The current broadcasting environment is rapidly changing from analog broadcasting to digital broadcasting. In addition, the amount of content for digital broadcasting is increasing much compared to the conventional analog broadcasting, and the types thereof are also very diverse. In particular, in recent years, interest in 3-dimensional (3D) content, which is more realistic and three-dimensional, has been increased and produced much compared to 2-dimensional (2D) content.

However, when the 3D output mode is set when the display apparatus of the prior art is turned on, after the image processing of the output image is performed, the image is divided into left image data and right image data to be output in three dimensions. There was a problem that takes a long time to output the.

Therefore, to solve the problems of the prior art, by forcibly setting the 2D output mode when the power-on of the three-dimensional display device, the operation method of the display device to shorten the time to output the image according to the power-on command and There is a need for developing a display device employing the method.

The present invention solves the problems of the prior art as described above, by forcibly setting the 2D output mode when the power-on of the three-dimensional display device, by reducing the time to output the image according to the power-on command of the display device It is an object of the present invention to provide an operation method and a display device employing the method.

A method of operating a 3D display device according to an embodiment of the present invention includes: receiving a power on command; And setting an output mode of image data to a 2D output mode in response to the power on command. And bypassing and outputting a 3D formatter when the image data is output according to the 2D output mode setting.

In addition, the 3D display device according to another embodiment of the present invention includes a user input unit for receiving a power-on command; And a controller configured to set the output mode of the image data to the 2D output mode in response to the power on command, and to bypass the 3D formatter to output the image data according to the setting of the 2D output mode. It is done.

The present invention has an effect of reducing the time for outputting an image according to the power-on command by forcibly setting the 2D output mode when the 3D display device is powered on.

In addition, the present invention, even if the display device for outputting the three-dimensional image data is set to the 3D output mode when the power off, by forcibly switching to the 2D output mode when the power on, thereby reducing the time to output the image data upon power-on There is an effect that can improve the response speed of the display device.

In addition, the present invention has the effect that the output of the image data according to the power-on command can be output at a high speed, if necessary, after a predetermined time, the three-dimensional image can be output.

1 is a view showing an embodiment of a display device for providing three-dimensional content according to the present invention.
FIG. 2 is a diagram for explaining perspective according to an interval or parallax (hereinafter, referred to as interval) between left image data and right image data; FIG.
FIG. 3 is a diagram for explaining an example of a method of implementing a 3D image in a display device in connection with the present invention; FIG.
4 is a flowchart illustrating a process of outputting the 3D image data as described above when the 3D display device is in the 3D output mode.
5 is a block diagram illustrating a configuration of processing image data in a 3D output mode according to an embodiment of the present invention.
6 is a diagram illustrating an operation process of a display device for outputting a 3D image according to an embodiment of the present invention.
FIG. 7 is a diagram illustrating a process of setting a 2D output mode when a power is turned on in a display device according to one embodiment of the present invention; FIG.
8 is a diagram illustrating a process of setting a 2D output mode when a power is turned on in a display device according to another exemplary embodiment of the present invention.
9 is a diagram illustrating a process of setting a 2D output mode when a power is turned on in a display device according to another embodiment of the present invention.
10 is a block diagram showing a configuration of a display device according to an embodiment of the present invention.
11 is a view showing the configuration of shutter glasses according to an embodiment of the present invention.

The present invention relates to an operation method of a display device for outputting three-dimensional content and a display device employing the method, which will be described in more detail with reference to the accompanying drawings.

The configuration and operation of the present invention shown in the drawings and described by the drawings are described as at least one embodiment, and the technical spirit, configuration, and operation of the present invention are not limited by such embodiments. The terms used in the present invention have been selected as widely used general terms as possible in consideration of the configuration and function of the present invention, but may vary according to the intention and custom of the person skilled in the art or the emergence of new technologies. In certain cases, there is also a term arbitrarily selected in this specification, in which case the meaning will be described in detail in the description of the invention.

1 is a view showing an embodiment of a display device for providing three-dimensional content according to the present invention.

In relation to the present invention, there are two methods of showing three-dimensional content, a method of wearing glasses and a glasses-free method of not wearing glasses. In addition, the way of wearing glasses is divided into a passive (active) method and an active (active) method. The passive method distinguishes between a left image and a right image by using a polarization filter. Or, wearing blue and red sunglasses on both eyes is also passive. The active method is a method of distinguishing left and right eyes using a liquid crystal shutter, and distinguishing a left image and a right image by sequentially covering the left eye (left eye) and the right eye (right eye) in time. In other words, the active method is a method of periodically wearing a glasses with an electronic shutter that is periodically repeated and synchronized with the time-divided screen, also referred to as a time split type or a shuttered glass method. . Representatives known as a glasses-free method without wearing glasses include a lenticular method in which a lenticular lens plate in which a cylindrical lens array is vertically arranged in front of the image panel, and a periodic slit in the upper part of the image panel. There is a parallax barrier method having a barrier layer having a.

FIG. 1 illustrates an embodiment of a stereoscopic method among 3D display methods and an active method among the stereoscopic methods. However, although the shutter glasses are described as an example of the active type media, the present invention is not limited thereto, and it is apparent that the present invention can be applied to other media as described below.

Referring to FIG. 1, a display device according to an embodiment of the present invention is configured to output 3D image data on a display unit and to synchronize the 3D image data output when watching the shutter glasses 200. A synchronization signal Vsync related to 3D image data is generated and output to an IR emitter (not shown) in the shutter glasses, so that the shutter glasses 200 can watch in synchronization with the display.

The shutter glasses 200 adjusts the open period of the left-eye or right-eye shutter liquid crystal panel according to a synchronization signal received through an IR emitter (not shown), thereby outputting the three-dimensional image data 300 output from the display unit 100. Can be motivated.

At this time, the display device processes the three-dimensional image data using the principle of the stereoscopic method. That is, when one object is photographed by two cameras of different positions, the left image data and the right image data are generated, and each generated image data is inputted separately so as to be orthogonal to each other in the left and right eyes of the person. It is a principle that the 3D image is generated by combining the image data inputted into the left and right eyes of the brain. In the above, the fact that the image data is arranged to be orthogonal to each other means that each image data does not interfere with each other.

FIG. 2 is a diagram illustrating perspective according to a gap or parallax (hereinafter, referred to as a gap) between left image data and right image data.

FIG. 2 (a) illustrates an upper position 203 where both of the above data are combined when the distance between the right image data 201 and the left image data 202 is narrow, and FIG. 2 (b) illustrates the right image data ( 211 and the left image data 212, the position of the upper image 213 is described.

2 (a) to 2 (b) show the degree of perspective at which different images are formed at different positions according to the interval between the left image data and the right image data in the image signal processing apparatus.

Referring to FIG. 2 (a), the upper side draws extension lines R1 and R2 facing one side and the other side of the right image data 201 to the right eye, and the one side and the other side of the left image data 202 to the left eye. When drawing the extension lines L1 and L2, the extension line R1 for the right image data and the extension line L1 for the left image data intersect each other at a distance d1 from the right eye and the left eye at a distance 203. Bears.

Referring to FIG. 2B, the image is based on the foregoing description in FIG. 2A, and the extension line R3 for the right image data and the extension line L3 for the left image data have a predetermined distance from the right eye and the left eye. at point 213 crossing each other at d2).

Here, comparing d1 in FIG. 2 (a) and d2 in FIG. 2 (b) which show the distance from the left eye and the right eye to the positions 203 and 213 where the image is formed, the distance d1 is greater from the left eye to the right eye than d2. far. That is, the image in Fig. 2 (a) is formed at a distance farther from the left and right eyes than the image in Fig. 3 (b).

This is due to the distance (east-west direction with reference to the drawing) between the right image data and the left image data.

For example, the interval between the right image data 201 and the left image data 202 in FIG. 2A is the interval between the right image data 203 and the left image data 204 in FIG. 2B. Relatively narrow compared with

Therefore, inferring based on Figs. 2 (a) and 2 (b), as the interval between each image data becomes narrower, the image formed by the combination of the left image data and the right image data is felt farther away from the human eye.

Meanwhile, the 3D image data may be implemented in 3D by various methods such as giving a tilt to a depth or giving a 3D effect. Hereinafter, a method of giving depth among the above methods Briefly describe.

3 is a diagram illustrating an example of a method of implementing a 3D image in a display device in relation to the present invention.

In the case of FIG. 3A, the distance between the left image data 301 and the right image data 302 constituting the three-dimensional image is narrow. In the case of FIG. 3B, the left image constituting the three-dimensional image. This is the case where the interval between the data 304 and the right image data 305 is wide.

Therefore, the 3D image implemented according to the interval of each image data in FIGS. 3 (a) and 3 (b) is based on the principle of FIG. 2 described above, and the 3D image 303 implemented in FIG. 3D image 306 implemented in FIG. 3 (b) is closer to the human eye, that is, the image is more prominent near the human eye. That is, by adjusting the distance between the left image data and the right image data constituting the three-dimensional image, it is possible to give an appropriate depth to the three-dimensional image.

4 is a flowchart illustrating a process of outputting the 3D image data as described above when the 3D display device is in the 3D output mode.

Referring to FIG. 4, in operation 401 of the display device, the display device receives a 3D output mode set by the user. The 3D output mode setting may be set through a predetermined user interface.

In operation S402, the display device receives a selection of the format of the 3D image data to be output in the 3D format from the user or determines the format of the 3D image data to be output.

In this case, when the 3D image data is received from an external input source, format information of the 3D image data may be received from the external input source, and the module includes a module for determining the format of the 3D image data inside the display device. In addition, the format of the 3D image data to be output in the corresponding module may be determined.

3D image data determined according to an embodiment may be classified into various types. (1) Left image data and right image data are generated by photographing one object with two cameras at different positions. Side by side format in which the left image data and the right image data are separately input so that they are orthogonal to each other in the left eye and the right eye, and (2) a single object is photographed by two cameras at different positions. Top and bottom format that generates image data and right image data, and inputs the generated left and right image data up and down (, (3) one object to two cameras of different positions Shoot and generate left image data and right image data, and input left image data and right image data alternately in the form of a chessboard. Checker board format, (3) a frame in which one object is photographed by two cameras at different positions to generate left image data and right image data, and the left image data and right image data are input at a time difference. It may be divided into a sequential frame format.

Next, the display apparatus processes the 3D image data in step S403 and then processes and outputs the 3D image data processed in step S404 in 3D format. In this case, the display device may output the 3D image data in at least one of line by line, frame sequential, and checker board methods using the determined format information of the 3D image data. In addition, if necessary, the format of the 3D image data is converted according to the output method of the display device, and the 3D image data of the converted format is output.

5 is a block diagram illustrating a configuration of processing image data in a 3D output mode according to an embodiment of the present invention.

Referring to FIG. 5, the display device according to an exemplary embodiment processes the image data to be output processed in the 3D output mode by the image processor 501 and then outputs the image data to the 3D formatter 502.

Scaler 503 of the 3D formatter scales the three-dimensional image data to an appropriate size for output.

The FRC 504 adjusts the frame rate of the three-dimensional image data to the output frame rate of the display device.

The output formatter 505 converts the format of the 3D image data according to the output method of the display device, and outputs the 3D image data of the converted format to the display unit 506.

However, when the display device is powered on, if the image data is processed and output in the 3D output mode, there may be a problem in that the time required for the power-on may be delayed. You can perform the same operation.

6 is a diagram illustrating an operation process of a display device that outputs a 3D image according to an embodiment of the present invention.

Referring to FIG. 6, the display device according to an embodiment of the present invention receives a power-on command in step S601.

In step S602, the display device supplies power in response to the power-on command, and forcibly sets the output mode of the image data to the 2D output mode.

For example, when the power is off, the display device may be set to the 3D output mode. In this case, the display device is forced to the 2D output mode according to the power-on command in step S602.

In operation S603, the display device bypasses and outputs the 3D formatter when the image data is output according to the 2D output mode setting.

In this case, the display device may control the image data to bypass the 3D formatter by controlling a predetermined switch according to a 2D output mode setting.

A process of bypassing and outputting the 3D formatter according to the 2D output mode setting will be described in detail with reference to FIGS. 7 to 9.

Thereafter, upon receiving the 3D output mode setting command as a result of the determination in step S604, the display apparatus sets the output mode of the image data to the 3D output mode in step S605, and the image according to the 3D output mode setting. When the data is output, the 3D formatter is controlled to output the 3D format.

In addition, when outputting the 3D image data in a spectacle method using the shutter glasses according to the embodiment, the display device receives a synchronization signal for the three-dimensional image data, according to the received synchronization signal left eye liquid crystal panel and right eye Set the output mode of the image data to the 3D output mode when receiving a response signal from the shutter glasses for adjusting the shutter open period of the liquid crystal panel, and output the image data from the 3D formatter to the 3D format according to the 3D output mode setting. You can control the output to be processed. In this case, the response signal may be set to be transmitted from the shutter glasses to the display device when the shutter glasses are powered on.

Therefore, even if the display device that outputs the 3D image data is set to the 3D output mode when the power is turned off, by forcibly switching to the 2D output mode when the power is turned on, the time for outputting the image data according to the power on is shortened. There is an effect that can improve the response speed of the display device.

7 is a diagram illustrating a process of setting a 2D output mode when a power is turned on in a display device according to one embodiment of the present invention.

Referring to FIG. 7, when a power-on command is received from the user input unit 701, the display device transmits a bypass command from the controller 702 to the 3D formatter 704.

The 3D formatter 704 receives the bypass command, and when the image data is input from the image processor 703, the 3D formatter 704 is bypassed and output to the display unit 705.

When the display device is set to the 3D output mode or a response signal is received from the shutter glasses, the controller 702 may transmit a command to process the 3D format without bypassing the image data to the 3D formatter.

8 is a diagram illustrating a process of setting a 2D output mode when a power is turned on in a display device according to another embodiment of the present invention.

Referring to FIG. 8, when a power-on command is received from the user input unit 801, the display device may control the switch 800 from the controller 802 and the image processor 803. The output image data is output to the display unit 805 without passing through the 3D formatter 804.

At this time, the controller 802 controls the switch 800 to connect the terminal 810 and the terminal 830 so that the image data output from the image processor 803 does not pass through the 3D formatter 804, and the display unit. Output to 805.

When the display device is set to the 3D output mode or a response signal is received from the shutter glasses, the controller 802 may connect the terminal 810 and the terminal 820 so that image data may be input to the 3D formatter 804. have.

FIG. 9 is a diagram illustrating a process of setting a 2D output mode when a power is turned on in a display device according to another embodiment of the present invention.

Referring to FIG. 9, when a power-on command is received from the user input unit 901, the display apparatus according to an embodiment of the present disclosure controls the switch 900 in the control unit 902, and then in the image processing unit 903. The output image data is output to the display unit 905 without passing through the 3D formatter 904. In this case, the controller 902 controls the switch 900 to connect the terminal 920 and the terminal 930 so that the image data output from the image processor 903 does not pass through the 3D formatter 904 and the display unit. Output to 905.

When the display device is set to the 3D output mode or a response signal is received from the shutter glasses, the controller 902 may connect the terminal 910 and the terminal 920 so that image data may be input to the 3D formatter 904. have.

On the other hand, since an image output at power-on may require three-dimensional image processing in some embodiments, the display unit 905 through the terminal 930 and the terminal 920 as it is output from the image processing unit 903. ) May be outputted to the 3D format 904 at the same time.

According to an exemplary embodiment, after a predetermined time has passed after receiving the power-on command, the image data processed in the 3D format may be output to the display unit 905 by connecting the terminal 920 of the switch 900 to the terminal 910. Make sure

Therefore, the present invention has an effect that the three-dimensional image can be output after a predetermined time, if necessary, while performing the image output according to the power-on command at a high speed.

FIG. 10 is a diagram for one embodiment of controlling a 3D formatter to bypass a power-on command in a display device according to one embodiment of the present invention.

Referring to FIG. 10, the display device according to an embodiment of the present invention may be set to the 3D output mode by setting the 3D formatter to 1 when the power-off command is set or to the 2D output mode by setting the 3D formatter to 0 when the power-off command is set. Even if it is set, the 3D formatter is set to 0 at the power-on command to control the 2D output mode to be forced.

11 is a block diagram illustrating a configuration of a display device according to an embodiment of the present invention. 11 is a block diagram showing the configuration when the display device of the present invention is a digital broadcast receiver.

Referring to FIG. 11, the digital broadcast receiver according to the present invention includes a tuner 101, a demodulator 102, a demultiplexer 103, a signaling information processor 104, an application control unit 105, a storage unit 108, The external input receiver 109, the decoder / scaler 110, the controller 115, the mixer 118, the 3D formatter 119, and the display 120 may be configured. The digital broadcast receiver may further include other necessary components in addition to the configuration shown in FIG. 11.

The tuner 101 tunes a specific channel to receive a broadcast signal including content.

The demodulator 102 demodulates the broadcast signal input from the tuner 101.

The demultiplexer 103 demultiplexes an audio signal, a video signal, and signaling information from the demodulated broadcast signal. In this case, the demultiplexing may be performed through PID (Packet IDentifier) filtering. In addition, the signaling information will be described below using System Information (SI) information such as PSI / PSIP (Program Specific Information / Program and System Information Protocol) as an example for convenience of description.

The demultiplexer 103 outputs the demultiplexed audio signal / video signal to the decoder / scaler 110 and the signaling information to the signaling information processor 104.

The signaling information processor 104 processes the demultiplexed signaling information and outputs the demultiplexed signaling information to the application controller 105, the controller 115, and the mixer 118. Here, the signaling processor 104 may include a database (not shown) for temporarily storing the processed signaling information.

The application control unit 105 includes a channel manager 106 and a channel map 107. The channel manager 106 may form and manage the channel map 107 based on the signaling information, and control the channel map 107 to be switched based on the channel map 107 according to a user input.

The decoder / scaler 110 includes a video decoder 111, an audio decoder 112, a scaler 113, and a video processor 114.

The video decoder / audio decoders 111 and 112 receive and process demultiplexed audio signals and video signals.

The scaler 113 scales the signal processed by the decoders 111/112 into a signal of an appropriate magnitude for output.

The user input unit 123 may include a user input unit (not shown) that receives a key input of a user or the like through a remote controller.

The application controller 105 may further include an OSD data generator (not shown) for configuring the UI. Alternatively, the OSD data generator may generate OSD data for UI configuration under the control of the application controller 105.

The display 120 outputs content, a UI, and the like.

The mixer 118 mixes and outputs inputs of the signaling processor 104, the decoder / scaler 110, and the application control unit 105.

The 3D formatter 119 configures the output of the mixer 118 according to the output format of the display unit. Here, the 3D formatter 119 bypasses, for example, 2D content, and processes the 3D content in 3D format according to the format and the output frequency of the display unit 120 under the control of the controller 115. .

The 3D formatter 119 outputs 3D image data to the display unit 120 and synchronizes the 3D image data with the configured 3D image data so that the 3D image data is synchronized with the shutter glasses 121 when viewed. (Vsync) is generated and output to an IR emitter (not shown) in the shutter glasses so that the shutter glasses 121 can watch in synchronization with the display.

The user input unit 123 receives various user commands, power on commands, and power off commands.

When the power-on command is received from the user input unit 123, the controller 115 sets the output mode of the image data to the 2D output mode in response to the power-on command, and outputs the image data according to the 2D output mode setting. The 3D formatter 119 bypasses and controls the output.

In this case, the controller 115 may control the predetermined switch according to the 2D output mode setting to control the image data to bypass the 3D formatter.

According to an embodiment, when the user input unit 123 receives the 3D output mode setting command, the controller 115 sets the output mode of the image data to the 3D output mode and sets the image according to the 3D output mode setting. When the data is output, the 3D formatter 115 may control to output the 3D format.

In addition, the control unit 115 receives the synchronization signal for the three-dimensional image data, the receiving module 122 to the shutter glasses 121 for adjusting the shutter open period of the left eye liquid crystal panel and the right eye liquid crystal panel according to the received synchronization signal. When the response signal is received, the output mode of the image data may be set to the 3D output mode, and the output may be processed in the 3D format by the 3D formatter 119 when the image data is output according to the 3D output mode setting. .

In addition, the controller 115 may forcibly switch the 3D output mode to the 2D output mode when the output mode of the image data is set to the 3D output mode when the power-off command is set.

The IR emitter receives the sync signal generated by the 3D formatter 119 and outputs the sync signal to the light receiving unit (not shown) in the shutter glasses 121, and the shutter glasses 150 pass through the IR emitter (not shown) through the light receiving unit. By adjusting the shutter open period according to the received synchronization signal, it is possible to match the synchronization of the 3D image data output from the display unit 120.

12 is a diagram illustrating a configuration of shutter glasses according to an embodiment of the present invention.

Referring to FIG. 12, the shutter glasses include a left eye shutter liquid crystal panel 2100 and a right eye shutter liquid crystal panel 1230. The shutter liquid crystal panels 1200 and 1230 may simply pass or block light according to the source driving voltage.

When the left image data is displayed on the display device, the left eye shutter liquid crystal panel 1200 passes light and the right eye shutter liquid crystal panel 1230 blocks light transmission, so that the left image data is transmitted only to the left eye of the user of the shutter glasses. do. On the other hand, when the right image data is displayed on the display device, the left eye shutter liquid crystal panel 1200 blocks light transmission, and the right eye shutter liquid crystal panel 1230 passes the light so that the right image data is transmitted only to the right eye of the user. To be.

In this process, the infrared receiver 1260 of the shutter glasses converts the infrared signal received from the display device into an electrical signal and provides the converted signal to the controller 1270. The controller 1270 controls the left eye shutter liquid crystal panel 1200 and the right eye shutter liquid crystal panel 1230 to be alternately turned on and off according to the synchronization reference signal.

As described above, the shutter glasses may transmit a response signal to the display device so that the display device is set to the 3D output mode.

As described above, the present invention has been described by way of limited embodiments and drawings, but the present invention is not limited to the above-described embodiments, which can be variously modified and modified by those skilled in the art to which the present invention pertains. Modifications are possible. Accordingly, the spirit of the present invention should be understood only by the claims set forth below, and all equivalent or equivalent modifications thereof will belong to the scope of the present invention.

Claims (10)

In the operation method of the 3D display device,
Receiving a power on command; And
Setting an output mode of image data to a 2D output mode in response to the power on command;
Bypassing and outputting a 3D formatter when the image data is output according to the 2D output mode setting;
Operating method of the 3D display device comprising a. The method of claim 1,
Bypassing and outputting the 3D formatter when the image data is output according to the 2D output mode setting,
Controlling the image data to bypass the 3D formatter by controlling a predetermined switch according to the 2D output mode setting.
Operating method of the 3D display device comprising a. The method of claim 1,
When the 3D output mode setting command is received, setting the output mode of the image data to the 3D output mode and controlling the output process of the image data to the 3D format when the image data is output according to the 3D output mode setting.
Method of operation of the 3D display device further comprising. The method of claim 1,
Receiving a synchronization signal for the three-dimensional image data, and when receiving a response signal from the shutter glasses for adjusting the shutter open period of the left eye liquid crystal panel and the right eye liquid crystal panel according to the received synchronization signal output mode of the image data 3D output mode Controlling the output processing to the 3D format from the 3D formatter when outputting the image data according to the 3D output mode setting.
Method of operation of the 3D display device further comprising. The method of claim 1,
The setting of the output mode of the image data to the 2D output mode in response to the power on command,
Forcibly switching the 3D output mode to the 2D output mode when the output mode of the image data is set to the 3D output mode when the power-off command is set;
Operating method of the 3D display device comprising a. 3D display device,
A user input unit configured to receive a power on command; And
A controller configured to set the output mode of the image data to the 2D output mode in response to the power on command, and to bypass the 3D formatter to output the image data according to the 2D output mode setting;
3D display device comprising a. The method of claim 6,
The control unit,
And controlling a predetermined switch according to the 2D output mode setting to control the image data to bypass the 3D formatter. The method of claim 6,
When the user input unit receives the 3D output mode setting command, the controller sets the output mode of the image data to the 3D output mode, and outputs the image data according to the 3D output mode setting from the 3D formatter to the 3D format. 3D display device characterized in that the control to output. The method of claim 6,
The control unit receives a synchronization signal related to 3D image data, and adjusts an output mode of the image data when receiving a response signal from shutter glasses for adjusting shutter open periods of a left eye liquid crystal panel and a right eye liquid crystal panel according to the received synchronization signal. And a 3D output mode, and controlling to output a 3D format from the 3D formatter when the image data is output according to the 3D output mode setting. The method of claim 6,
The control unit,
And forcibly switching the 3D output mode to the 2D output mode when the output mode of the image data is set to the 3D output mode at the time of power off command.

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