JP2013042194A - Remote controller for stereoscopic display device and multi-screen stereoscopic display system - Google Patents

Abstract

In a case where a stereoscopic display is to be performed on a multi-screen system, a synchronization signal common to a plurality of stereoscopic display devices does not exist. Therefore, when viewing a plurality of stereoscopic display devices with shutter glasses, a plurality of stereoscopic displays is provided. The synchronization between all the left-eye images and right-eye images displayed on each of the display devices and the opening and closing of the left and right shutters of the shutter glasses is not guaranteed, and the stereoscopic display cannot be viewed correctly.
A first synchronization signal transmitting unit that transmits a first synchronization signal indicating display switching timing of a left-eye / right-eye image to a stereoscopic display device that alternately displays a left-eye / right-eye image, and a left-eye / Second synchronization signal transmission for transmitting a second synchronization signal indicating the opening / closing timing of the left / right eye shutter to the shutter glasses for opening / closing the right eye shutter in synchronization with the display switching timing of the left / right eye image. A multi-screen stereoscopic display system is provided by using a remote controller having a means.
[Selection] Figure 4

Description

  The present invention relates to a stereoscopic display technology for viewing an image displayed on a stereoscopic display device with shutter glasses, and more particularly to a technology for controlling a stereoscopic display device with a remote controller.

  2. Description of the Related Art In recent years, as one field in image display technology, an image display device and viewing shutter glasses are used, and shutter glasses are synchronized with display of left-eye images and right-eye images displayed alternately on the image display device. 3D display systems that enable viewing of 3D images by opening and closing left-eye shutters and right-eye shutters are becoming widespread.

  In this stereoscopic display system, a technique for opening and closing the left and right shutters of the shutter glasses in synchronism with the left-eye image and the right-eye image displayed on the image display device is important. This directly affects the display quality of the stereoscopic image.

  As a conventional control technique related to opening / closing of the shutter, a signal related to opening / closing of the shutter is transmitted to the shutter glasses from a controller, an adapter and an input / output unit attached to the image display device, etc., and shutter opening / closing control in the shutter glasses is performed. The method etc. which perform are disclosed (for example, refer patent documents 1-3). In these cases, by transmitting a synchronization signal from the display device to the shutter glasses, the display of the left eye image and the right eye image in the display device related to stereoscopic display and the opening and closing of the left and right shutters of the shutter glasses are performed. The synchronization was ensured.

JP-A-62-227297 JP-A-62-26997 Japanese Patent Laid-Open No. 2004-130026

  However, the synchronization signal transmitted from the conventional stereoscopic display device to the shutter glasses is a synchronization signal related to a stereoscopic image displayed on the specific stereoscopic display device, and is information unique to the specific stereoscopic display device. That is, when a stereoscopic display is performed on a multi-screen system (a system that displays a single image on a plurality of display devices), or when a stereoscopic display image on a plurality of stereoscopic display devices is used in cooperation, a plurality of stereoscopic images are displayed. There is no synchronization signal common to the display devices. Therefore, when viewing a plurality of stereoscopic display devices while wearing shutter glasses, all left-eye images and right-eye images displayed on each of the plurality of stereoscopic display devices and the opening and closing of the left and right shutters of the shutter glasses The synchronization is not guaranteed and the stereoscopic display cannot be viewed correctly.

  An object of the present invention is to provide a remote controller for a stereoscopic display device and a multi-screen stereoscopic display system that have high functionality and excellent versatility by solving the above-described problems.

  In order to solve the above problems, the remote controller of the present invention provides a first synchronization signal indicating the display switching timing of the left-eye image and the right-eye image on the stereoscopic display device that alternately displays the left-eye image and the right-eye image. The first synchronization signal transmitting means for transmitting, the shutter glasses for opening and closing the left-eye shutter and the right-eye shutter, and the left-eye shutter in synchronization with the display switching timing of the left-eye image and the right-eye image displayed on the stereoscopic display device And a second synchronization signal transmitting means for transmitting a second synchronization signal indicating the opening / closing timing of the right-eye shutter.

  With such a configuration, the display switching of the left-eye image and the right-eye image can be synchronized in a lump for a plurality of image display devices, and a plurality of stereoscopic displays can be achieved by using such a remote control. A stereoscopic image composed of a plurality of images displayed on the apparatus can be viewed with shutter glasses.

  Also, the remote controller of the present invention assigns the first synchronization signal to a remote control code such as the first specific code of the remote control or the additional information of the first predetermined code, so that the output circuit of the remote control in the transmission of the first synchronization signal Therefore, there is no need to newly add an output circuit for transmitting the first synchronization signal to the remote control, the circuit configuration can be simplified, and the cost merit effect can be exhibited.

  In the remote controller of the present invention, the second synchronization signal is assigned to a remote control code such as the second specific code of the remote control or the additional information of the second predetermined code, so that the output circuit of the remote control in transmitting the second synchronization signal. Therefore, there is no need to newly add an output circuit for transmitting the second synchronization signal to the remote controller, and the circuit configuration can be simplified and the cost merit effect can be exhibited.

  The multi-screen stereoscopic display system of the present invention displays a plurality of stereoscopic display devices that alternately display a left-eye image and a right-eye image of a partial stereoscopic image that is a part of one stereoscopic image, and displays a single stereoscopic image. For this purpose, each of the plurality of stereoscopic display devices includes a remote controller that transmits a third synchronization signal indicating the display switching timing of the left-eye image and the right-eye image of the partial stereoscopic image.

  With such a configuration, the left-eye image and the right-eye of the partial stereoscopic image can be obtained for each of the plurality of stereoscopic display devices that alternately display the left-eye image and the right-eye image of the partial stereoscopic image that are a part of one stereoscopic image. It is possible to display a single stereoscopic image by transmitting a third synchronization signal indicating the display switching timing of the image for use. Therefore, it is possible to ensure synchronization of display switching between the left-eye image and the right-eye image for a plurality of stereoscopic display devices that display partial stereoscopic images. Therefore, by using such a remote controller, one stereoscopic image composed of partial stereoscopic images displayed on a plurality of stereoscopic display devices can be viewed with shutter glasses.

  In the multi-screen stereoscopic display system of the present invention, each of the plurality of stereoscopic display devices has storage means for storing the left-eye image and the right-eye image of the partial stereoscopic image of the predetermined number of screens together with the display time information. 3 is received, the image to be displayed stored in the storage means is selected and displayed based on the display time information and the third synchronization signal.

  With such a configuration, each of the plurality of stereoscopic display devices stores the left-eye image and the right-eye image of the predetermined number of partial stereoscopic images together with the display time information in the storage unit, and displays when receiving the third synchronization signal. Based on the time information and the third synchronization signal, the image to be displayed stored in the storage means can be selected and displayed. Therefore, each of the plurality of stereoscopic display devices can easily and reliably select and display an image to be displayed at the time designated based on the display time information and the synchronization signal received from the remote controller.

  In the multi-screen stereoscopic display system of the present invention, the third synchronization signal is assigned to the remote control code such as the third specific code of the remote control or the additional information of the third predetermined code, thereby transmitting the third synchronization signal. The output circuit of the remote controller can be used, and it is not necessary to newly provide an output circuit for transmitting the third synchronization signal, so that the circuit configuration can be simplified and the cost merit effect can be exhibited.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to ensure the synchronization of the display switching of the image for left eyes and the image for right eyes collectively with respect to several image display apparatuses, and one 3D is used using several 3D display apparatuses. It is possible to provide a multi-screen stereoscopic display system that displays images and a stereoscopic display system that can link stereoscopic display images displayed on a plurality of stereoscopic display devices.

It is a perspective view which shows the external appearance of the three-dimensional display apparatus in the multi-screen three-dimensional display system of Embodiment 1 of this invention, shutter glasses, and a remote control. It is a block diagram which shows the main structures of the three-dimensional display apparatus, shutter spectacles, and remote control in Embodiment 1 of this invention. 3 is a timing chart illustrating a synchronization operation between the stereoscopic display device and the shutter glasses according to the first embodiment of the present invention. It is a block diagram which shows the structure of the remote control of Embodiment 1 of this invention. It is a figure which shows an example of a standard remote control data format. It is a figure which shows the example of a response | compatibility with the remote control code in a television, and an internal job. It is a figure explaining the 1st synchronizing signal reception process of the three-dimensional display apparatus of Embodiment 1 of this invention. It is explanatory drawing of the multi-screen three-dimensional display system in Embodiment 1 of this invention. It is a figure which shows the comparative example with respect to the multi-screen three-dimensional display system in Embodiment 1 of this invention.

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

  In the following, a case where stereoscopic display is performed in which the display order of the left and right parallax images is performed for the left eye and then for the right eye is described, but the display order may be for the right eye and then for the left eye. .

(Embodiment 1)
FIG. 1 is a perspective view showing an overview of a stereoscopic display device 100, shutter glasses 200, and a remote controller 300 that constitute a multi-screen stereoscopic display system (hereinafter abbreviated as “this system”) 1 according to the first embodiment.

  The system 1 includes a stereoscopic display device 100 that displays a part of a multi-screen stereoscopic image, shutter glasses (hereinafter abbreviated as “glasses”) 200, and a remote control device (hereinafter abbreviated as “remote controller”) 300. ing.

  The stereoscopic display device 100 includes a display unit 130 and an infrared receiving unit 180 having an infrared light receiving element. The display unit 130 includes an image for the left eye (hereinafter abbreviated as “L image”) and an image for the right eye (hereinafter referred to as “L image”). (Hereinafter, abbreviated as “R image”) can be displayed alternately, and display of an L image and an R image (hereinafter abbreviated as “image”) transmitted from the remote control 300 by infrared rays by the infrared receiver 180 is started. A synchronization signal indicating timing (hereinafter, a synchronization signal indicating image display start timing is abbreviated as “V synchronization signal”) is received.

  The spectacles 200 includes a left eye shutter (hereinafter abbreviated as “left shutter”) 210 a, a right eye shutter (hereinafter abbreviated as “right shutter”) 210 b, and an infrared light receiving element 220. The infrared light receiving element 220 receives the shutter switching synchronization signal transmitted by infrared rays, and controls the light incident on the left eye by the left shutter 210a so as to be synchronized with the image displayed on the stereoscopic display device 100, and the right shutter 210b. Can control the light incident on the right eye.

  Each of the left shutter 210a and the right shutter 210b includes an optical filter (not shown), and can control ON (transmission) / OFF (blocking) of incident light based on a signal received by the infrared light receiving element 220. it can. Note that the display information of the L image and the R image is different from each other by the amount of parallax between the left eye and the right eye, and the viewer passes through the glasses 200 that open and close the left shutter 210a and the right shutter 210b in synchronization with the displayed image. By viewing the image, a part of the multi-screen stereoscopic image displayed by the stereoscopic display device 100 can be perceived as a stereoscopic image. Accordingly, one stereoscopic display image can be viewed using the glasses 200 together with the stereoscopic image displayed on another stereoscopic display device in the system 1 similar to the stereoscopic display device 100.

  The remote controller 300 uses a remote controller having a normal function for a video display device, sets a specific code related to the synchronization control of the system 1 in accordance with a standard remote control data format, and Assign internal jobs. The operation surface of the remote controller 300 includes a function selection button 301, a determination button 302, and four orientation setting buttons 303 positioned up, down, left, and right around the determination button 302 as push buttons arranged by function. In the present system 1, synchronization signals are transmitted from the remote control 300 to the stereoscopic display device 100 and the shutter glasses 200, respectively, and the synchronization signals transmitted from the remote control at the stereoscopic display device 100 and the shutter glasses 200 (hereinafter referred to as “remote control synchronization signal”). Is abbreviated as). The detailed configuration and function of the remote controller 300 will be described later.

  Next, configurations and functions of the stereoscopic display device 100 and the glasses 200 will be described with reference to FIGS.

  FIG. 2 is a block diagram illustrating main components of the stereoscopic display device 100, the glasses 200, and the remote controller 300 according to the first embodiment. FIG. 3 is a timing chart illustrating the synchronization operation of the stereoscopic display device 100 and the glasses 200. .

  As illustrated in FIG. 2, the stereoscopic display device 100 includes a decoding unit 110, a signal processing unit 120, a CPU 140, a memory 150, a clock 160, a display unit 130 that displays an image, and an infrared signal that is a remote control signal transmitted from the remote controller 300. Infrared receiving unit 180 that receives the remote control signal, and remote control signal processing unit 170 that performs processing corresponding to the remote control signal received by infrared receiving unit 180.

  The decoding unit 110 decodes an input encoded image signal and outputs image data in a predetermined format. For encoding an image, a system such as MPEG (Motion Picture Experts Group) -2, MPEG-4, or H264 is used.

  The signal processing unit 120 performs signal processing for displaying the image data received from the decoding unit 110 as a stereoscopic image. Specifically, an L image and an R image are extracted from the image decoded by the decoding unit 110, or an L image and an R image are generated from the decoded image, and the extracted or generated L image and R image are temporally extracted. Are alternately output to the display unit 130. Further, an output signal including the V synchronization signal is generated and transmitted to the display unit 130. The signal processing unit 120 includes a frame memory 121, and records and reads the generated L image and R image in the L image memory and the R image memory (both not shown) in the frame memory 121 together with display time information. be able to.

  The CPU 140 performs overall control of the stereoscopic display device 100 based on an input signal from the outside according to a program stored in the memory 150.

  The memory 150 stores a program executed by the CPU 140 and data necessary for executing the program. As the memory 150, a general-purpose storage element such as a RAM (Random Access Memory) or a ROM (Read Only Memory) is used.

  The clock 160 supplies a clock signal that is an operation reference of the stereoscopic display device 100.

  The display unit 130 displays an image output from the signal processing unit 120, and is a CRT, a liquid crystal display panel (LCD), a plasma display panel (PDP), an organic EL, or the like.

  On the other hand, the glasses 200 include a left shutter 210a, a right shutter 210b, an infrared receiving unit 220 having an infrared light receiving element that receives a shutter switching synchronization signal transmitted from the remote controller 300, and an open / close control unit that performs opening / closing control of the shutter. 230, a memory 240, and a clock 250.

  The opening / closing control unit 230 outputs an instruction to open / close the left shutter 210 a and the right shutter 210 b to the shutter 210 based on the shutter switching synchronization signal received by the infrared receiving unit 220. The left shutter 210a and the right shutter 210b are attached to positions corresponding to the left eye and right eye of the user when the user wears the glasses 200, respectively. Each of the left shutter 210a and the right shutter 210b includes an optical filter (not shown) that controls the amount of transmitted light. Based on an opening / closing instruction from the opening / closing control unit 230, the left eye and the right eye of the user. ON (incident) / OFF (blocking) of light incident on the display is controlled so as to be synchronized with the L image and the R image alternately displayed on the display unit 130, so that the user can visually recognize a desired stereoscopic image. .

  The memory 240 stores a program executed by a CPU (not shown) and data necessary for executing the program.

  The clock 250 supplies a clock signal that is an operation reference of the glasses 200.

  In the first embodiment, infrared rays are used for transmission / reception of signals between the stereoscopic display device 100 and the glasses 200 and the remote controller 300, but wired signals, other wireless signals, ultrasonic waves, and the like may also be used. it can.

  FIG. 3 is a timing chart showing an operation of synchronizing the image displayed on the stereoscopic display device 100 and the shutter opening / closing of the glasses 200 according to the first embodiment.

  As shown in FIG. 3, when the remote controller 300 transmits a synchronization signal (hereinafter abbreviated as a first synchronization signal) indicating the display switching timing of the L image and the R image to the stereoscopic display device 100, the stereoscopic display device 100 The first synchronization signal is received, and the L image and the R image are alternately displayed on the display unit 130 based on the first synchronization signal. Further, the remote controller 300 generates a synchronization signal (hereinafter abbreviated as a second synchronization signal) indicating the opening / closing timing of the left shutter and the right shutter of the glasses 200 based on the first synchronization signal, and adjusts the timing of the first synchronization signal. Then, the second synchronization signal is transmitted to the glasses 200.

  As a result, for example, when an L image is displayed on the stereoscopic display device 100 at the timing based on the first synchronization signal, the glasses 200 open the left shutter 210a (see-through state) at the timing based on the second synchronization signal, and the right shutter 210b. Is closed (blocked state), and the user can view the L image only with the left eye.

  Similarly, when the R image is displayed on the stereoscopic display device 100 at the timing based on the first synchronization signal, the glasses 200 open the right shutter 210b (see-through state) at the timing based on the second synchronization signal, and the left shutter 210a is closed. (Occluded state), the user can see the R image only with the right eye.

  Thereafter, the left shutter 210a and the right shutter 210b of the glasses 200 are opened and closed in synchronization with the display switching timing of the L image and the R image based on the first synchronization signal and the second synchronization signal transmitted from the remote controller 300. The user can view the image displayed on the display unit 130 of the stereoscopic display device 100 through the glasses 200 in a stereoscopic manner. Note that the first synchronization signal transmitted from the remote controller 300 is stored in the stereoscopic display device 100, and the stereoscopic display device 100 autonomously switches the display between the L image and the R image based on the stored first synchronization signal. The same applies to the glasses 200.

  FIG. 4 is a block diagram showing a configuration of remote controller 300 according to the first embodiment.

  The system 1 transmits a first synchronization signal and a second synchronization signal necessary for displaying a stereoscopic image from the remote controller 300, and the stereoscopic display device 100 receives the first synchronization signal transmitted from the remote controller 300, and the second synchronization signal is received. When the glasses 200 receive the signal, synchronization control between the stereoscopic display device 100 and the glasses 200 in stereoscopic image display is performed.

  In addition to the circuit configuration related to the function as a normal TV remote control, the remote control 300 includes a synchronization signal generator 310, a transmission unit for transmitting a first synchronization signal and a second synchronization signal to the stereoscopic display device 100 and the glasses 200. A transmission unit 320, a memory 330, and a clock 340 are provided. The remote controller 300 may be a dedicated remote controller in the system 1.

  The memory 330 stores a program executed by a CPU (not shown) and data necessary for executing the program. As the memory 330, a general-purpose storage element such as a RAM (Random Access Memory) or a ROM (Read Only Memory) is used.

  The clock 340 supplies a clock signal necessary for the synchronization signal generation unit 310 of the remote controller 300 to generate the first synchronization signal and the second synchronization signal.

  The transmission unit 320 includes a first transmission unit 321, a second transmission unit 322, a transmission control unit 323, and two infrared light emitting elements (not shown).

  The synchronization signal generation unit 310 is configured to transmit a first synchronization signal and a second synchronization signal to be transmitted to the stereoscopic display device 100 and the glasses 200 based on information related to the remote control format stored in the memory 330 and a program related to generation of the synchronization signal. Is generated and transmitted to the transmission unit 320.

  Based on the information received from the synchronization signal generation unit 310, the transmission unit 320 converts the first synchronization signal for the stereoscopic display device 100 into an infrared signal in the first transmission unit 321 and converts the first synchronization signal into an infrared light emitting element (see FIG. (Not shown). Similarly, in the 2nd transmission part 322, the 2nd synchronizing signal with respect to the spectacles 200 is converted into an infrared signal, and a 2nd synchronizing signal is transmitted from an infrared light emitting element (not shown).

  The transmission control unit 323 performs timing matching when transmitting the first synchronization signal and the second synchronization signal from the first transmission unit 321 and the second transmission unit 322, and the like.

  Next, the setting of the codes of the first synchronization signal and the second synchronization signal will be described with reference to FIGS.

  FIG. 5 is a diagram showing an example of a standard remote control data format, and FIG. 6 is a diagram showing an example of correspondence between a remote control code and an internal job in a television.

  For example, when the “1” key on the remote controller is pressed, as shown in FIG. 6, command data “10h” is transmitted from the remote controller, and “R_1” processing is performed as an internal job to perform “1ch”. Control for selecting a channel is executed.

  On the other hand, in the remote controller 300 of the present system 1, as a first synchronization signal conforming to the standard remote controller data format shown in FIG. Data (hereinafter abbreviated as “left / right identification timing information”) is assigned, and the left / right identification timing information is transmitted to the stereoscopic display device 100 and the glasses 200 by depressing a push button corresponding to the assigned predetermined remote control data. Note that the left / right identification timing information may be assigned to a newly set remote control specific code (which can be arbitrarily created). For example, in FIG. 6, by assigning “3D_L” indicating L image display as an internal job to the “0” key in FIG. It is recognized as remote control data indicating L image display as information, and instructs control of synchronization processing related to L image display.

  Similarly, as the second synchronization signal transmitted from the remote controller 300 to the eyeglasses 200, the command data “3D_G_L” meaning opening of the left shutter 210a can be assigned to additional information of other predetermined remote controller data or a specific code of the remote controller. .

  Next, processing of the stereoscopic display device 100 and the glasses 200 that have received the first synchronization signal and the second synchronization signal from the remote controller will be described.

  FIG. 7 is a diagram illustrating the first synchronization signal reception process of the stereoscopic display device 100.

  As illustrated in FIG. 7, the remote control signal processing unit 170 of the stereoscopic display device 100 includes a remote control code identification unit 171, a remote control signal interrupt unit 172, a synchronization signal generation unit 173, and a phase adjustment unit 174.

  The L image synchronization signal for the stereoscopic display device 100 as the first synchronization signal received by the infrared receiving unit 180 from the remote control 300 is input to the remote control code identification unit 171 and the remote control signal interrupt unit 172 of the remote control signal processing unit 170.

  The information identified by the remote control code identification unit 171 (in this case, the L image synchronization signal) is transmitted to the synchronization signal generation unit 173 together with the remote control signal reception interrupt signal generated by the remote control signal interrupt unit 172, and interrupted. Processing is executed.

  The synchronization signal generation unit 173 generates a synchronization signal serving as a reference for L image display in the stereoscopic display device 100 and transmits the synchronization signal to the phase adjustment unit 174.

  The phase adjustment unit 174 generates the L image information S1 based on the display time information stored in the frame memory 121 in the signal processing unit 120, the L image information S1, and the L image synchronization signal received from the synchronization signal generation unit 173. Adjust the phase. As shown in FIG. 7, when the phase of the L image information S1 has a phase difference of t1 with respect to the synchronization signal for L image, the phase adjustment unit 174 corrects the phase difference of t1 and performs synchronization for L image. The L image information S1a synchronized with the signal is transmitted to the signal processing unit 120 together with the display time information. The same image phase adjustment is performed on the L image information S2 displayed on another stereoscopic display device that constitutes the multi-screen stereoscopic display system together with the stereoscopic display device 100.

  In this way, the stereoscopic display device 100 selects and reads out the L image or R image to be displayed by the signal processing unit 120 from the frame memory 121 based on the first synchronization signal, and the remote control signal processing unit 170 reads the L image or R image. The phase of the image is adjusted, and the L image and the R image can be alternately displayed in synchronization with the first synchronization signal indicating the display switching timing of the L image or the R image transmitted from the remote controller 300.

  The spectacles 200 receives the second synchronization signal indicating the opening / closing timing of the left and right shutters 210 of the spectacles 200 transmitted from the remote controller 300 by the infrared receiver 220 and opens / closes the synchronization signal for controlling the opening / closing of the left and right shutters 210 It transmits to the control part 230. Thereby, the glasses 200 can perform opening / closing control of the shutter 210 related to viewing of a stereoscopic image based on the second remote control synchronization signal transmitted from the remote control 300.

  When the glasses 200 cannot receive the second synchronization signal from the remote controller 300, the shutter of the glasses 200 is determined based on the phase correction information of the L image or the R image based on the first synchronization signal from the remote controller 300 in the stereoscopic display device 100. A synchronization signal for opening and closing can be generated and transmitted to the glasses 200. The transmission of the synchronization signal for opening and closing the shutter from the stereoscopic display device 100 to the eyeglasses 200 is the same as in the conventional stereoscopic display system, and thus the description thereof is omitted.

  Next, a multi-screen stereoscopic display system obtained by applying the present system 1 described above will be described.

  FIG. 8 is an explanatory diagram of the multi-screen stereoscopic display system according to Embodiment 1 of the present invention.

  In the present system 1, the remote controller 300 is a third for indicating the display switching timing of the L image and the R image of the partial stereoscopic image displayed on each of the plurality of stereoscopic display devices 100 in order to display one stereoscopic image. A synchronization signal (hereinafter abbreviated as “third synchronization signal”) is transmitted.

  In the remote controller 300, the additional information of the first specific code or the first predetermined code is assigned as the first remote control code to transmit the first synchronization signal to the stereoscopic display device 100, and the second synchronization signal is transmitted to the glasses 200. It has already been described that the additional information of the second specific code or the second predetermined code is assigned as the second remote control code in order to transmit. Similarly, the remote controller 300 in the multi-screen stereoscopic display system has a third synchronization indicating the display switching timing of the L image and the R image of the partial stereoscopic image constituting one stereoscopic image for each of the multiple stereoscopic display devices. In order to transmit a signal, additional information of the third specific code or the third predetermined code is assigned as the third remote control code.

  Hereinafter, a multi-screen stereoscopic display system that displays one stereoscopic image A composed of four partial stereoscopic images A1 to A4 displayed on each of the four stereoscopic display devices 100 will be described.

  As shown in FIG. 8, the multi-screen stereoscopic display system includes four stereoscopic display devices 100 that alternately display L images and R images of partial stereoscopic images A1 to A4 that are a part of one stereoscopic image A. ing. When the stereoscopic image A is displayed with such a configuration, as shown in FIG. 8A, L of the partial stereoscopic images A1 to A4 is transmitted by the third synchronization signal transmitted from the remote controller 300 to the four stereoscopic display devices 100. The phase of the display switching timing of the image and the R image is adjusted. On the other hand, the second synchronization signal transmitted from the remote controller 300 to the glasses 200 synchronizes the left and right shutter opening / closing timings of the glasses 200 with the display switching timings of the L image and the R image of the partial stereoscopic images A1 to A4. Thereby, the stereoscopic image A (FIG. 8B) displayed on the four stereoscopic display devices 100 can be viewed as the correct stereoscopic image Aa (FIG. 8C) through the glasses 200. Note that the stereoscopic video A is a video displayed on the four stereoscopic display devices 100 in the period V1 (FIG. 8A), and the stereoscopic video Aa is a stereoscopic video viewed with the left eye through the glasses 200 in the same period V1. Indicates.

  FIG. 9 is a diagram illustrating a comparative example in a case where the images displayed on the four stereoscopic display devices 100 are not synchronized with the multi-screen stereoscopic display system.

  As shown in FIG. 9, the display switching timings of the L image and the R image of the partial stereoscopic images A1 to A4 are not aligned, and only the display switching timings of the L image and the R image of the partial stereoscopic video A1 are left and right of the glasses 200. When the shutter opening / closing timing is aligned, the stereoscopic image A (FIG. 9B) displayed on the four stereoscopic display devices 100 is correctly displayed as shown in FIG. Although it cannot be seen as the stereoscopic image Aa and only the partial stereoscopic image A1 is a correct stereoscopic image as schematically shown as the stereoscopic image Ab in FIG. 9C, the partial stereoscopic images A2 to A4 have a phase difference. As a whole, the correct stereoscopic video Aa cannot be seen.

  In the multi-screen stereoscopic display system shown in FIG. 8, when the display switching timings of the L image and the R image of the partial stereoscopic images A1 to A4 are not aligned, the remote controller 300 transmits the third synchronization signal to Each of the phase adjustment units 170 of the stereoscopic display device 100 corrects the phase difference between the display switching timings of the L image and the R image, so that the display switching timings of the L image and the R image of the partial stereoscopic images A1 to A4 are changed. It is possible to align the left and right shutter opening and closing timings, and to correctly view stereoscopic images on a multi-screen.

The multi-screen stereoscopic display system described above has been described with respect to a form in which a plurality of stereoscopic display devices are arranged in close contact with each other, but one stereoscopic display device is divided into a plurality of screens,
When each of the divided screens is controlled by an independent divided screen control unit, the same control as in the case where each of the divided screen control units has a plurality of stereoscopic display devices with respect to the third synchronization signal received from the remote controller. It is also possible to perform a 3D display by doing the above.

  It should be noted that at least two or three of the first to third synchronization signals described in the above embodiment are the same synchronization signal, and the synchronization between the stereoscopic display device and the glasses and a plurality of stereoscopic signals The synchronization between the display device and the glasses may be controlled with a single remote control code.

  As described above, according to the present invention, the synchronization of the display switching timing of the L image and the R image of a plurality of stereoscopic images and the left and right shutter opening / closing timings of the shutter glasses can be ensured collectively. A multi-screen stereoscopic display system that displays one stereoscopic image using a display device and a stereoscopic display system that can link stereoscopic display images displayed on a plurality of stereoscopic display devices can be provided.

  In addition, by assigning a remote control code corresponding to a synchronization signal transmitted to a plurality of stereoscopic display devices and shutter glasses to a normal remote controller, a multi-screen stereoscopic display system can be configured relatively easily.

  The remote control for a stereoscopic display device and the multi-screen stereoscopic display system according to the present invention use a plurality of display devices, shutter glasses, and a remote controller that ensures synchronization between the plurality of stereoscopic images displayed on the plurality of display devices and the shutter glasses. It can be applied to a stereoscopic image display system.

1 stereoscopic display system 100 stereoscopic display device 110 decoding unit 120 signal processing unit 121 frame memory 130 display unit 140 CPU
180, 220 Infrared receiver 150, 240, 330 Memory 160, 250, 340 Clock 170 Remote control signal processing unit 171 Remote control code identification unit 172 Remote control signal interrupt unit 173 Synchronization signal generation unit 174 Phase adjustment unit 200 Shutter glasses 210a Shutter for left eye 210b Shutter for right eye 230 Opening / closing controller 300 Remote controller 310 Synchronization signal generator 320 Transmitter 321 First transmitter 322 Second transmitter 323 Transmission controller

Claims (8)

First synchronization signal transmitting means for transmitting a first synchronization signal indicating display switching timing of the left-eye image and the right-eye image to a stereoscopic display device that alternately displays a left-eye image and a right-eye image;
The shutter glasses for opening and closing the left-eye shutter and the right-eye shutter are connected to the left-eye shutter and the right-eye shutter in synchronization with the display switching timing of the left-eye image and the right-eye image displayed on the stereoscopic display device. A remote control comprising second synchronization signal transmitting means for transmitting a second synchronization signal indicating opening / closing timing. The remote controller according to claim 1, wherein the first synchronization signal is additional information of a first specific code or a first predetermined code of the remote controller. The remote controller according to claim 1 or 2, wherein the second synchronization signal is additional information of a second specific code or a second predetermined code of the remote controller. In the stereoscopic display device that alternately displays the left-eye image and the right-eye image, display switching timing of the left-eye image and the right-eye image,
The shutter glasses for opening and closing the left-eye shutter and the right-eye shutter are connected to the left-eye shutter and the right-eye shutter in synchronization with the display switching timing of the left-eye image and the right-eye image displayed on the stereoscopic display device. A remote controller having synchronization signal transmitting means for transmitting a synchronization signal indicating opening / closing timing. The remote controller according to claim 4, wherein the synchronization signal is a specific code of the remote controller or additional information of a predetermined code. A plurality of stereoscopic display devices that alternately display a left-eye image and a right-eye image of a partial stereoscopic image that is a part of one stereoscopic image;
A multi-control device configured to transmit a third synchronization signal indicating display switching timing of the left-eye image and the right-eye image of the partial stereoscopic image to each of the plurality of stereoscopic display devices in order to display the one stereoscopic image; 3D display system. Each of the plurality of stereoscopic display devices has storage means for storing a left-eye image and a right-eye image of partial stereoscopic images of a predetermined number of screens together with display time information, and when the third synchronization signal is received, the display time 7. The multi-screen stereoscopic display system according to claim 6, wherein an image to be displayed stored in the storage means is selected and displayed based on the information and the third synchronization signal. The multi-screen stereoscopic display system according to claim 6 or 7, wherein the third synchronization signal is additional information of a third specific code or a third predetermined code of the remote controller.

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