JP2011061360A - Video display device and control method for the video display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a video display device and a control method for the video display device, which enable switching to double screen display of three-dimensional video and two-dimensional video of content with easy and straightforward operations if the content being currently displayed is content adaptable to three-dimensional display. <P>SOLUTION: A control section 210 determines whether or not the type of the content being displayed is a 3D video if a double-screen display key is pressed down by a user, and executes processing for creating and displaying a 3D/2D double-screen display screen for displaying 3D video and 2D video together for the same video if it is determined that the 3D video is being displayed. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a video display apparatus capable of displaying two-dimensional video and three-dimensional video on the same screen, and a control method thereof.

  In recent years, an increasing number of movie theaters have facilities capable of performing 3D video, and broadcast content that can be viewed in 3D on satellite broadcasts has been broadcast. Spread).

  Stereoscopic viewing in these contents is achieved by displaying parallax images with different viewpoints on the viewer's left and right eyes (hereinafter referred to as a binocular parallax system). The following problems are known to occur. The first problem is that the eyes function when observing a stereoscopic image is different from the normal function of the eyes, and eye fatigue may occur depending on the content of the image. The second problem is that there is a possibility that a symptom called “3D sickness” or “VR sickness” may be exhibited due to the sense of distance caused by the parallax image and the uncomfortable feeling due to the difference in distance to the actual monitor. Therefore, depending on the viewer, in order to avoid the above problem, even if the content is compatible with stereoscopic viewing, the content should not be viewed with stereoscopic video (3D video) that feels depth but with normal planar video (2D video). Can be assumed.

  Regarding the above problem, a video display device that can convert and display 3D video into 2D video and can be set to display 2D video when the video content is 3D video has been proposed (see Patent Document 1).

  When viewing 3D-compatible content at home, a case where a plurality of people view content displayed on one screen can be considered. In this case, there is a possibility of being divided into a person who desires viewing with 3D video and a person who desires viewing with 2D video for the reasons described above.

  In addition, since a technique for realizing 3D video is mainly performed by viewing with dedicated glasses, a situation in which glasses are insufficient can easily occur when viewing by a plurality of people. Also in this case, the viewer is divided into a 3D video viewer and a 2D video viewer.

  As described above, when a viewer of 3D video and a viewer of 2D video exist at the same time, as one solution for satisfying each desire, two-screen display of the same content 3D video and 2D video (hereinafter referred to as 3D video). / 2D two-screen display).

JP 2006-121553 A

  However, it is expected that the operation for changing from the one-screen display state to the 3D / 2D two-screen display takes time. This is because even the operation to change from the current screen state to the two-screen display state of the same channel generally requires the following three steps. In addition to these operations, the display dimension of one screen is three-dimensional. This is because it is necessary to perform an operation of changing from 2 to 2 dimensions.

(1) Press the dual screen display key to switch to dual screen display.
(2) By pressing the left / right key, the channel selection operation right is moved to the newly created second screen.
(3) Select the display channel of the second screen to the same channel as the first screen.

  In addition, since it is expected that 3D-compatible content broadcasting will increase in the future, it is considered that opportunities to perform operations for changing to 3D / 2D two-screen display will also increase. Therefore, it is desirable that the operation can be performed easily and the operation is easy to understand.

  As described above, the present invention provides a video display device and a video display device control method capable of switching to 3D / 2D two-screen display with a simple and easy-to-understand operation when the currently displayed content is 3D-compatible content. The purpose is to do.

  To achieve the above object, the video processing apparatus of the present invention displays a left-eye video and a right-eye video on the display unit, and observes the displayed left-eye video and right-eye video with the left eye and the right eye, respectively. A video display device that performs display so that a video can be stereoscopically recognized from the left-eye video and the right-eye video by using a pair of glasses for displaying two types of video in parallel on the display unit Receiving means for receiving an operation input for executing a two-screen display function, and a two-screen display function in one of the two screens in response to receiving the operation input for executing the two-screen display function Control means for executing a process of displaying the first video displayed before the execution of the video and displaying a second video of a different type from the first video in the other screen area. The control means is the two screens When the left-eye video and the right-eye video are displayed as the first video so that the user can perform three-dimensional recognition when receiving an operation input for executing the display function, the one screen area The left-eye video and the right-eye video are displayed so that the user can perform three-dimensional recognition, and either the left-eye video or the right-eye video is displayed in the other screen area.

  As described above, according to the present invention, when the currently displayed content is 3D-compatible content, the video display device and the video display device can be switched to 3D / 2D two-screen display with a simple and easy-to-understand operation. A control method can be provided.

It is a block diagram which shows the structure of the video display apparatus in Example 1 of this invention. It is a figure which shows the content of the PMT data of the broadcasting system in Example 1 of this invention. It is a figure which shows the data content of each place when the 3D corresponding | compatible content is input in the video display system of Example 1 of this invention. It is a figure which shows an example of a video display position and a display layout in Example 1 of this invention. It is a flowchart which shows the process sequence in Example 1 of this invention. It is a block diagram which shows the structure of the video display apparatus in Example 2 of this invention. It is a figure which shows the video data content at the time of the 3D corresponding | compatible content being input in the video display system of Example 2 of this invention. It is a flowchart which shows the process sequence in Example 2 of this invention. It is a figure which shows an example of the 2 screen display screen in Example 2 of this invention.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  In this embodiment, when a user inputs a two-screen display operation while an arbitrary content is displayed on a one-screen display, it is determined whether the content is a 3D-compatible content. For 3D-compatible content, a video display device having a two-screen display function for performing 3D / 2D two-screen display will be described. Here, the two-screen display operation is assumed to be pressing of a two-screen display key attached to the remote control.

  The video display apparatus according to the present embodiment is realized by a system using a frame sequential method, which is one of the binocular parallax methods, as a technique for realizing 3D video display.

  The frame sequential method is a technique for realizing binocular parallax by controlling both a video output to a monitor and dedicated glasses for viewing the video (hereinafter referred to as 3D glasses). The monitor alternately displays the left eye image and the right eye image for each frame. In synchronization therewith, the left and right eye images are observed with the left eye and the right eye image is observed with the right eye by alternately opening and closing the shutters attached to the left and right lens portions of the 3D glasses. With such a configuration, the user can recognize a video in three dimensions. A shutter that can switch between transmission and non-transmission, such as a liquid crystal shutter, is used as the shutter of the lens unit.

  In this embodiment, a broadcast wave is assumed as an acquisition destination of 3D-compatible content, and the video display apparatus of this embodiment is compatible with a broadcast system described below.

  A broadcasting system used in this embodiment will be described. This broadcasting system is adapted to support not only normal 2D video content (hereinafter referred to as 3D non-compatible content) but also 3D compatible content broadcasting. In order to support broadcasting of 3D-compatible content, an MPEG2 (Moving Picture Experts Group-Phase2) -TS (Transport Stream) system used as a broadcasting standard is used. First, the extended point will be described with reference to FIG.

  FIG. 2 is a diagram showing an example of the contents of PMT (Program Map Table) of 3D-compatible content and 3D non-compatible content transmitted by the broadcast system. The PMT has a 3D correspondence flag 101 which is a flag indicating whether or not this content is a 3D correspondence content in addition to the list 100 associating the data content with its PID (Packet ID). When the content is 3D-compatible content, the 3D-compatible flag = “true”, and when the content is not 3D-compatible content, the 3D-compatible flag = “false”.

  In the case of 3D-compatible content (when 3D-compatible flag = “true”), two pieces of video data of left-eye video data and right-eye video data are multiplexed and transmitted. Thus, the list 100 stores three types of PIDs: left-eye video data, right-eye video data, and audio data. Note that the left-eye video and the right-eye video are independent 2D video content, so even if only the left-eye video or only the right-eye video is displayed, it can be viewed as a normal planar video. is there.

  On the other hand, when the content is not 3D-compatible content (when the 3D-compatible flag = “false”), it is not necessary to create a parallax, so one video data is sufficient. Therefore, the list 100 stores two types of PIDs, one video data and audio data.

  Based on the above, an embodiment of a video display device according to the present invention will be described. Hereinafter, the present embodiment will be described with reference to the drawings. FIG. 1 shows an example of the configuration of a 3D video display system to which the present invention is applied. The 3D video display system includes an antenna 1, a video display device 200, a remote controller 2, and 3D glasses 300. FIG. 3 shows the data contents of various parts of the 3D video display system when 3D video content is input. Numbers (1) to (9) are numbers (1) in the system configuration diagram of FIG. ) To (2).

  The antenna 1 receives a broadcast signal corresponding to the above-described broadcast system, such as terrestrial digital broadcast, satellite digital broadcast, and broadband broadcast, and sends the received signal to the video display device 200.

  The video display device 200 is a device that can receive and play back video content. In addition, it corresponds to the frame sequential method, and when a 3D-compatible content broadcast is received, display of 3D video and control of the 3D glasses 300 according to the method are performed.

  The remote controller 2 is used by the user to operate the video display device 200 and transmits the operation content to the video display device 200 using infrared rays or the like. The 3D glasses 300 are glasses with shutters corresponding to a frame sequential method that a user wears when viewing 3D images, and open and close left and right shutters according to shutter opening / closing control signals sent from the image display device 200 using infrared rays or the like. .

  Next, each functional block of the video display apparatus 200 will be described. The broadcast receiving unit 201 performs demodulation, error correction processing, and the like of the broadcast signal transmitted from the antenna 1 to create TS data. The separation unit 202 performs demultiplexing processing on the TS data input from the broadcast reception unit 201, and extracts video data, audio data, and information such as program information and a 3D correspondence flag. The extracted video data and audio data are reconstructed according to the PID list in the PMT described above. Thereafter, the data is output to the decoding unit 203.

  When the input content is 3D-compatible content (when 3D-compatible flag = “true”), the left-eye video data is output to the left-eye video decoder 203b, and the right-eye video data is output to the right-eye video decoder 203c. On the other hand, when the input content is content that is not 3D-compatible (when the 3D-compatible flag = “false”), the video data is output to the right-eye video decoder 203c. The audio data is output to the audio decoder 203a regardless of the 3D correspondence flag.

  The decoding unit 203 performs a decoding process on the video data and audio data input from the separation unit 202. In this embodiment, since it is necessary to simultaneously decode two video data of the right-eye video and the left-eye video, two video decoders (the right-eye video decoder 203b and the left-eye video decoder 203c) are provided. Also, one audio decoder (audio decoder 203a) for decoding audio data is provided. The decoded audio data is output to an audio output unit 204 described later, and the video data is output to an image switching unit 205 and a video memory control unit 206 described later. In addition, when outputting video data, it has a function of outputting a frame synchronization signal Vf to that effect to the video switching unit 205 every time transmission of data for one frame is completed.

  (1) and (2) in FIG. 3 respectively show output data of the right-eye video decoder 203b and the left-eye video decoder 203c. The right-eye video is output from the right-eye video decoder 203b, and the left-eye video decoder 203c is output from the right-eye video decoder 203c. Outputs the left-eye video. Further, (3) in FIG. 3 is a frame synchronization signal Vf. This signal is a signal whose pulse is inverted every frame period.

  The audio output unit 204 is assumed to be a speaker built in the video display device 200, and outputs the audio data decoded by the audio decoder 203a as sound. The video switching unit 205 alternately outputs two video data input to the video memory control unit 206 described later in accordance with the input frame synchronization signal Vf. Since the frame synchronization signal Vf is transmitted in units of one frame, the right-eye video data and the left-eye video data are alternately output for each frame (see (4) in FIG. 3). Therefore, a video (hereinafter referred to as a “frame sequential video”) used when viewing 3D video in the frame sequential format is created. Further, it also has a function of generating a video switching signal Sv1 indicating whether the right-eye video data or the left-eye video data is being output, and outputting the video switching signal Sv1 to the control signal transmission unit 211. (5) in FIG. 3 is an example of the video switching signal Sv1. In synchronization with the inversion of the pulse of the frame synchronization signal Vf, the pulse is set to Low when the right-eye video is being output, and the pulse is set to High while the left-eye video is being output.

  The video memory control unit 206 resizes the input video data in accordance with the layout instruction from the control unit 210 and writes it to the video memory 207. As shown in FIG. 4A, the layout instruction is designated by the upper left coordinates (x0, y0) and the lower right coordinates (x1, y1) of the image on the screen. After the video data for one frame is written in the video memory 207, it is read out and output to the display unit 208.

  The video memory 207 is a temporary buffer used by the video memory control unit 206 to arrange the video layout and the like.

  The display unit 208 is assumed to be a monitor built in the video display device 200 and displays video data input from the video memory control unit 206. The operation input unit 209 recognizes a user operation performed via the remote controller 2 and supplies it to the control unit 210 described later.

  In response to a user operation, the control unit 210 instructs the video memory control unit 206 to change the layout, or instructs the control signal transmission unit 211 to transmit a shutter opening / closing control signal. General control of the device 200 is performed. In addition, the control unit 210 internally holds a 3D video display flag that is information indicating whether or not a 3D video is being displayed. The flag is equal to whether or not the video memory control unit 206 is instructed to write the output from the video switching unit 205 to the video memory 207, and “true” is given when the video memory control unit 206 is instructed to write the output from the video switching unit 205. Otherwise, the value “false” is stored.

  The control signal transmission unit 211 is an interface with the 3D glasses 300. In response to an instruction from the control unit 210, the control signal transmission unit 211 generates a shutter opening / closing control signal Sv2 so that the image switching signal Sv1 and the opening / closing of the shutter attached to the 3D glasses 300 are synchronized. Create and send to 3D glasses 300. (6) of FIG. 3 is an example of the shutter opening / closing control signal Sv2. In synchronization with the video switching signal Sv1, the left-eye shutter is opened (OFF) and the right-eye shutter is closed (ON) during the left-eye video output, and the left-eye shutter is closed (ON) during the right-eye video output. In addition, a signal is generated so that the right-eye shutter is opened (OFF). Here, in the former case, the pulse is set to High, and in the latter case, the pulse is set to Low.

  Subsequently, each functional block of the 3D glasses 300 will be described. The control signal receiving unit 301 receives the shutter opening / closing control signal Sv2 transmitted from the control signal transmitting unit 211 of the video display device 200, and transmits the signal to the shutter control unit 302. The shutter control unit 302 receives a shutter opening / closing control signal, and sends a shutter opening / closing instruction to the right eye shutter 303 and the left eye shutter 304 according to the received signal. (7) and (8) in FIG. 3 show the control signal for the right-eye shutter and the control signal for the left-eye shutter, respectively. The shutter control signal represents opening (OFF) when the pulse is High, and closing (ON) when the pulse is Low. When the output to the video memory control unit 206 ((4) in FIG. 3) is outputting the right-eye video data, the right-eye shutter is open, the left-eye shutter is closed, and the left-eye video data is being output. The right-eye shutter is closed and the left-eye shutter is open.

  The right eye shutter 303 and the left eye shutter 304 perform opening and closing operations of the shutter according to instructions from the shutter control unit 302.

  From the above, when 3D video is input to this video display system, the video seen by the user wearing 3D glasses is the video data of (9) in FIG. 3, with the right eye only for the right eye and the left eye for the left eye. Only video can be seen and parallax can be realized.

  Although the blocks for executing the basic functions as the video display device and the 3D glasses exist in addition to the blocks described in the above configuration, the descriptions that do not contribute to the present invention are omitted.

  Next, the operation of the control unit 210 when the user presses the two-screen display key while displaying 3D-compatible content will be described using the flowchart of FIG. The flowchart of FIG. 5 is assumed to be executed when the control unit 210 recognizes that the two-screen display key is pressed by a notification from the operation input unit 209.

  In step S <b> 101, the control unit 210 acquires a 3D-compatible flag of the currently selected content from the separation unit 202.

  In step S102, the control unit 210 determines whether the currently selected content is 3D-compatible content based on the value of the 3D-compatible flag. If the 3D correspondence flag = “true” (in the case of 3D correspondence content), the process proceeds to step S103 in order to create a 3D / 2D two-screen display. On the other hand, if the 3D-compatible flag = “false” (when the content is not 3D-compatible), a normal two-screen display process is performed, and the process proceeds to step S106. As an example of normal two-screen display processing, the video of the channel that was selected and displayed before executing the two-screen display function is displayed in the left screen area, and the previous two screens are displayed in the other right screen area. For example, the video of the channel selected last is displayed. After executing step S106, the process ends.

  In step S103, the control unit 210 determines whether 3D video is currently displayed on the screen using the value of the 3D video display flag held inside. If 3D video is being displayed (if 3D video display flag = “true”), the process proceeds to step S105. If the 3D video is not displayed (if 3D video display flag = “false”), the process proceeds to step S104.

  In step S104, the control unit 210 transmits a 3D video shutter activation instruction since a 3D video image is newly displayed from a state in which only the 2D video image is displayed. That is, it instructs the control signal transmission unit 211 to start transmitting the shutter opening / closing control signal Sv2. Thereafter, the process proceeds to step S105.

  In step S105, the control unit 210 performs processing for creating a 3D / 2D two-screen display screen. The video data output from the video switching unit 205 to the video memory control unit 206 is a 3D video frame sequential video, and the video data output from the right-eye decoder 203b is a normal right-eye video 2D video. Therefore, 3D / 2D two-screen display can be realized by arranging the frame sequential video and the 2D video side by side. As described above, the control unit 210 instructs the video memory control unit 206 to write the two video data input from the video switching unit 205 and the right-eye decoder 203b into the video memory 207. At this time, the layout of the two video data is also instructed. FIG. 4B is an example of a layout instruction. The display position of the data (3D video data) input from the video switching unit 205 is designated by (x0_3d, y0_3d) and (x1_3d, y1_3d). The display position of the video data (2D video data) input from the right-eye decoder 203b is specified by (x0_2d, y0_2d) and (x1_2d, y1_2d). In response to this instruction, the video memory control unit 206 resizes the video data according to the designated layout and writes the video data for one frame in the video memory 207. Thereafter, the video memory control unit 206 sends the created video data to the display unit 208, whereby 3D / 2D two-screen display is executed in a state where the respective videos are arranged in parallel. Thus, the process ends.

  As described above, in this embodiment, 3D / 2D two-screen display can be realized in a 3D video display device using a frame sequential method. In addition, in response to the user's two-screen display operation, it is determined whether or not the content being displayed is 3D-compatible content. Therefore, the display change operation to the 3D / 2D two-screen display during the display of the 3D video-compatible content is simplified, and the convenience for the user is improved.

  Next, a second embodiment of the video display system to which the present invention is applied will be described. The operation of the video display apparatus according to the present embodiment is similar to that of the first embodiment. When an arbitrary content is displayed on a one-screen display and the user inputs a two-screen display operation, whether the content is 3D-compatible content or not. If the content is 3D-compatible, 3D / 2D two-screen display is performed. However, as a technology for realizing 3D video display, it is realized by a system using a polarization method which is one of binocular parallax methods.

  The polarization method is a technology that realizes binocular parallax by displaying the left and right images superimposed with vertical and horizontal polarizations and separating them with glasses with a polarizing filter. In the present embodiment, left and right images are alternately displayed for each scanning line, and a polarizing plate corresponding to the images is installed in front of the monitor, thereby realizing superposition of the left and right images.

  Also in the present embodiment, similarly to the first embodiment, a broadcast wave is assumed as the acquisition destination of the 3D-compatible content, and the video display apparatus of the present embodiment is compatible with the same broadcast system as the first embodiment.

  Hereinafter, the present embodiment will be described with reference to the drawings. FIG. 6 is an example of the configuration of a 3D video display system to which the present invention is applied, and includes an antenna 11, a video display device 400, a remote controller 12, and polarized glasses 13. FIG. 7 shows the data contents of various parts of the 3D video display system when 3D video content is input. Numbers (10) to (14) are numbers (10) in the system configuration diagram of FIG. ) To (14).

  As in the first embodiment, the antenna 11 receives a broadcast signal corresponding to the above-described broadcast system and sends the received signal to the video display device 400. The video display device 400 is a device that can receive and play back video content. Also, it supports the polarization method, and when a 3D-compatible content broadcast is received, 3D video is displayed according to the method.

  The remote controller 12 is used by the user to operate the video display device 400 and transmits the operation content to the video display device 400 using infrared rays or the like. The polarizing glasses 13 are glasses with a polarizing filter that the user wears when viewing 3D video. The right lens filter is a filter that passes vertically polarized light but does not pass horizontally polarized light, and the left lens filter is a filter that does not pass vertically polarized light but passes horizontally polarized light.

  Next, each functional block of the video display device 400 will be described. The broadcast receiving unit 401 performs demodulation and error correction processing of the broadcast signal transmitted from the antenna 11 and creates TS data.

  The separation unit 402 performs demultiplexing processing on the TS data input from the broadcast receiving unit 401, and extracts video data, audio data, and information such as program information and a 3D correspondence flag. Thereafter, the extracted video data and audio data are reconstructed according to the PID and output to the decoding unit 403.

  When the input content is 3D-compatible content (when 3D-compatible flag = “true”), the left-eye video data is output to the left-eye video decoder 403b, and the right-eye video data is output to the right-eye video decoder 403c. On the other hand, when the input content is content that is not 3D-compatible (when 3D-compatible flag = “false”), the video data is output to the right-eye video decoder 403c. The audio data is output to the audio decoder 403a regardless of the 3D correspondence flag.

  The decoding unit 403 performs a decoding process on the video data and audio data input from the separation unit 402. In this embodiment, since it is necessary to simultaneously decode two pieces of video data of the right-eye video and the left-eye video, two video decoders (a right-eye video decoder 403b and a left-eye video decoder 403c) are provided. Also, one audio decoder (audio decoder 403a) for decoding audio data is provided. The decoded audio data is output to an audio output unit 404 described later, and the video data is output to an image switching unit 405 and a video memory control unit 406 described later. When outputting video data, it also has a function of outputting a horizontal scanning line synchronization signal Hf to that effect to the video switching unit 405 every time transmission of data for one horizontal scanning line is completed.

  (10) and (11) of FIG. 7 respectively show output data for one frame of the right-eye video decoder 403b and the left-eye video decoder 403c. The right-eye video is output from the right-eye video decoder 403b. The video for left eye is output from the video decoder 403c.

  The audio output unit 404 is assumed to be a speaker built in the video display device 400, and outputs the audio data decoded by the audio decoder 403a as sound.

  The video switching unit 405 alternately outputs the two input video data to the video memory control unit 406 described later in accordance with the input horizontal scanning line synchronization signal Hf. Since the horizontal scanning line synchronization signal Hf is transmitted in units of data for one horizontal scanning line, right-eye video data and left-eye video data are alternately output for each horizontal scanning line (FIG. 7). (Refer to (12)). Therefore, an image (hereinafter referred to as a polarized image) used for viewing a 3D image by the polarization method is created.

  The video memory control unit 406 resizes the input video data in accordance with the layout instruction from the control unit 410 and writes it to the video memory 407. The layout instruction is designated by the upper left coordinates (x0, y0) and the lower right coordinates (x1, y1) of the image on the screen as in the first embodiment (see FIG. 4). The video memory control unit 406 writes video data for one frame in the video memory 407, reads it, and outputs it to the display unit 408.

  The video memory 407 is a temporary buffer that is used by the video memory control unit 406 to arrange the video layout and the like. The display unit 408 is assumed to be a monitor built in the video display device 400 and displays video data input from the video memory control unit 406.

  The operation input unit 209 recognizes a user operation performed via the remote controller 12 and supplies it to the control unit 410 described later.

  The control unit 410 performs overall control of the video display device 400 such as instructing the video memory control unit 406 to change the layout in response to a user operation.

  The polarizing plate 411 is a filter that polarizes the video data output from the video memory control unit 406. In accordance with the 3D video written out by the video memory control unit 406, vertical polarization filters and horizontal polarization filters are alternately arranged for each width of one horizontal scanning line. In the present embodiment, the video created by the video memory control unit 406 is the left-eye video L1, the right-eye video R2, the left-eye video L3,... Therefore, the configuration of the polarizing plate 411 is arranged in the order of a horizontal polarization filter, a vertical polarization filter, a horizontal polarization filter,.

  As described above, when 3D video is input to the video display system, the video that can be seen by the user is a video in which the number of horizontal scanning lines is reduced by half, and the video that is visible to the right is (13) in FIG. The image visible to the left eye is (14) in FIG. Although the resolution is lower than that of the original data, since only the right-eye video can be seen with the right eye and only the left-eye video can be seen with the left eye, parallax can be realized.

  Although blocks for executing the basic functions of the video display device exist in addition to the blocks described in the above configuration, descriptions of those that do not contribute to the present invention are omitted.

  Next, the operation of the control unit 410 when the user presses the two-screen display key while displaying 3D-compatible content will be described using the flowchart of FIG. The flowchart in FIG. 8 is assumed to be executed when the control unit 410 recognizes that the two-screen display key is pressed by the notification from the operation input unit 409.

  In step S <b> 201, the control unit 410 acquires a 3D correspondence flag of the currently selected content from the separation unit 402. That is, step S201 is the same process as step S101.

  In step S202, control unit 410 determines whether the currently selected content is 3D-compatible content from the value of the 3D-compatible flag. When the 3D correspondence flag = “true” (when the content is 3D correspondence), the process proceeds to step S203 in order to create a 3D / 2D two-screen display. On the other hand, if the 3D-compatible flag = “false” (in the case of 3D non-compatible content), normal two-screen display processing is performed, and the process proceeds to step S204. As an example of the normal two-screen display process, the channel currently selected on the left screen is displayed, and the channel that was last selected on the last two-screen display is displayed on the newly created right screen. After executing step S204, the process is terminated. That is, step S202 is the same process as step S102.

  In step S203, control unit 410 performs processing for creating a 3D / 2D two-screen display screen. The video data output from the video switching unit 405 to the video memory control unit 406 is a polarized video for 3D video, and the video data output from the right-eye decoder 403b is a normal 2D video for right eye. Therefore, 3D / 2D two-screen display can be realized by arranging the polarized image and the 2D image side by side. As described above, the control unit 410 instructs the video memory control unit 406 to write the two video data input from the video switching unit 405 and the right-eye decoder 403b into the video memory 407. At this time, the layout of the two video data is also instructed. Since the layout instruction method is the same as that in the first embodiment, a description thereof will be omitted. In response to this instruction, the video memory control unit 406 performs resize processing of the video data according to the designated layout, and writes the video data for one frame in the video memory 407. The video data written in the video memory 407 is as shown in FIG. Thereafter, this process is terminated.

  As described above, in this embodiment, 3D / 2D two-screen display can be realized in a 3D video display device using a polarization method. In addition, in response to the user's two-screen display operation, it is determined whether or not the content being displayed is 3D-compatible content. . Therefore, the display change operation to the 3D / 2D two-screen display during the display of the 3D video-compatible content is simplified, and the convenience for the user is improved.

  In the first and second embodiments described above, control is performed so that the right-eye video is displayed in the 2D video display area. However, even if control is performed so that the left-eye video is displayed in the 2D video display area, The effects of the invention can be enjoyed.

Claims (2)

The left eye video and the right eye video are displayed on the display unit, and the user uses glasses for observing the displayed left eye video and right eye video with the left eye and the right eye, respectively. A video display device that performs display that enables stereoscopic recognition of video from a right-eye video,
Receiving means for receiving an operation input for executing a two-screen display function for displaying two types of images in parallel on the display unit;
In response to receiving the operation input for executing the two-screen display function, the first image displayed before the execution of the two-screen display function is displayed in one of the two screens, and the other Control means for executing processing for displaying a second video of a type different from the first video in the screen area;
Have
When the control means displays the left-eye video and the right-eye video as the first video so that the user can perform three-dimensional recognition when receiving an operation input for executing the two-screen display function. The one screen area displays the left-eye video and the right-eye video so that the user can perform three-dimensional recognition, and the other screen area displays either the left-eye video or the right-eye video. A video display device characterized by executing a process of displaying the image. The left eye video and the right eye video are displayed on the display unit, and the user uses glasses for observing the displayed left eye video and right eye video with the left eye and the right eye, respectively. A control method for a video display device that performs display that enables stereoscopic recognition of video from a right-eye video,
A receiving step of receiving an operation input for executing a two-screen display function for displaying two types of images in parallel on the display unit;
In response to receiving the operation input for executing the two-screen display function, the first image displayed before the execution of the two-screen display function is displayed in one of the two screens, and the other A control step of executing a process of displaying a second video of a type different from the first video in the screen area;
Have
In the control step, when the operation input for executing the two-screen display function is received, the left-eye video and the right-eye video are displayed as the first video so that the user can perform stereoscopic recognition. The one screen area displays the left-eye video and the right-eye video so that the user can perform three-dimensional recognition, and the other screen area displays either the left-eye video or the right-eye video. A method for controlling a video display device, comprising: executing a process for displaying a video.

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