JP2011205481A - Stereoscopic video viewing tool and stereoscopic video display system - Google Patents

Abstract

Even if there are a plurality of viewers, it is possible to reduce fatigue for each viewer without hindering other viewers from viewing stereoscopic images.
The microcomputer 25 of the 3D glasses 20 is notified of its own identification information to the 3D TV 10 side, and the microcomputer 19 of the 3D TV 10 receives the notification of information indicating fatigue via the wireless communication transceiver 16. When it is determined that there are a plurality of viewers based on the identification information already received, the information indicating that there are a plurality of viewers is notified, and after the microcomputer 25 notifies the information indicating fatigue, the heart rate monitor 21 and If it is determined from the detection result from the pupil sensor 22 that fatigue has not been recovered, 2D video (planar video) is viewed, and if there is no recovery from fatigue, for example, the amount of light reaching the viewer's eyes is reduced. The safety mode has been changed so that viewers can rest their eyes.
[Selection] Figure 1

Description

  The present invention relates to a stereoscopic video viewing tool and a stereoscopic video display system for stereoscopically displaying video using binocular parallax.

  3D television, which is a stereoscopic video display device, utilizes the stereoscopic effect of video due to binocular parallax. In this case, left-eye and right-eye images are prepared on the television side, and when the viewer wears 3D glasses, these images are taken into the left-eye and right-eye respectively, and a three-dimensional image can be viewed.

  As a specific method, for example, a frame sequential method that enables 3D video while maintaining full HD image quality has been proposed. In this method, left-eye video and right-eye video are alternately displayed on the screen, and the left and right eyes are turned on / off by the active shutter of the 3D glasses in synchronization with the switching of the display, thereby creating binocular parallax. Thus, a stereoscopic image can be obtained.

  By the way, the human eye moves differently depending on the distance of the image, but the 3D TV image is focused on the same TV screen as when viewing a flat image, so that a stereoscopic image is viewed. You may feel tired due to a sense of incongruity called adjustment congestion contradiction.

  As a result, watching 3D television for a long time may cause fatigue to accumulate and cause physical condition to deteriorate. TV is a product that allows many people to enjoy family vacations and vacations, but if the TV has an adverse effect on the body, it cannot play the essential role of TV, so it can be used for a long time. Protection measures are needed.

  As an example in which such protection measures are taken, Patent Document 1 discloses a stereoscopic image display in which the stereoscopic degree of a stereoscopic image can be appropriately controlled by accurately evaluating the degree of eye fatigue. A device is proposed. In this case, an electrode is attached to the shutter glasses in order to detect an EOG (ocular electrogram) waveform, and a decrease in the convergence function is detected based on the potential difference signal to adjust the three-dimensionality.

  Japanese Patent Application Laid-Open No. 2004-228561 proposes a sensory response control apparatus that controls sensor response by detecting sensory information. This uses a mechanism that can detect the degree of excitement from changes in the skin temperature of the forehead and nose, and the degree of fatigue from changes in blinking. From the two sensitivities obtained here, the degree of stereo enhancement is 0-3. It is intended to switch to the stage.

JP 09-18894 A JP 09-23451 A

  However, in Patent Document 1 described above, the viewer's fatigue is reduced by accurately controlling the stereoscopic degree of the stereoscopic video by accurately detecting the viewer's eye fatigue using the EOG method. However, since the adjustment of the three-dimensionality is processed on the TV side, in a situation where there are multiple viewers, viewers who are not fatigued can view images targeted for viewers who are fatigued. There was a bug that it was shown.

  Further, in Patent Document 2 described above, the viewer's fatigue is reduced as described above by switching the three-dimensional enhancement level from four sensitivity levels of excitement level and fatigue level to 4 levels of 0-3. However, since the switch of the stereo enhancement level is processed on the TV side, in the situation where there are multiple viewers, viewers with low sensibilities are targeted at viewers with high sensibilities. There was a problem that it was shown the video.

  The present invention has been made in view of such a situation. Even when there are a plurality of viewers, the present invention does not prevent other viewers from viewing stereoscopic images, and each viewer is fatigued. It is an object of the present invention to provide a stereoscopic video viewing tool and a stereoscopic video display system that can reduce the above.

The stereoscopic video viewing tool of the present invention is a stereoscopic video viewing tool for viewing a frame sequential stereoscopic video in which video corresponding to each of the left and right eyes is alternately displayed on the screen. Based on the detection result of the fatigue state detection means, an active shutter that is turned on / off in response to the video of the video, and that detects the fatigue state of the viewer who views the video, Viewing-side control means for controlling the operation of the active shutter, and when the viewing-side control means determines that there is fatigue from the detection result by the fatigue state detection means, the viewing-side control means The active shutter is controlled to be turned on / off so as to capture the corresponding video so that a planar video can be viewed.
In addition, the light-emitting body is turned on or blinked under the control of the viewing-side control means, and when the viewing-side control means determines that there is fatigue from the detection result by the fatigue state detection means, the light-emitting body is turned on. Or it can be made to blink.
The viewing-side control means determines that the fatigue has been recovered from the detection result by the fatigue state detection means after a predetermined time has elapsed after controlling the on / off of the active shutter so that the planar image is viewed. The active shutter is turned on / off so that a stereoscopic image can be viewed, and if it is determined that the fatigue has not been recovered from the detection result by the fatigue state detecting means after the predetermined time has elapsed, the active shutter is turned on. The amount of light reaching the viewer's eyes can be reduced by controlling / off.
The stereoscopic video display system of the present invention includes a stereoscopic video viewing tool for viewing a stereoscopic video, and a stereoscopic video display device for displaying the stereoscopic video of the frame sequential method corresponding to each of the left and right eyes. The tool includes an active shutter that turns on / off in response to the image of either of the left and right eyes and captures the image; a fatigue state detection unit that detects a fatigue state of a viewer who views the image; In addition to the flashing light emitter and the control of the operation of the active shutter based on the detection result of the fatigue state detection means and the notification of information indicating fatigue associated with the detection result, the self-identification information A 3D video display device that communicates with the viewing side control unit, and a variety of devices received via the communication unit. Display-side control means for controlling at least video display based on the information, the display-side control means receives the notification of the information indicating the fatigue via the communication means, and receives the notification via the communication means If it is determined from the identification information that there are a plurality of viewers, the information indicating that there are a plurality of viewers is notified, and the viewer-side control means notifies the fatigue, and then the viewers When receiving information indicating that the light emitting body is turned on or blinking, and when it is determined that fatigue has not been recovered from the detection result by the fatigue state detection means, the left and right eyes correspond to one of the left and right eyes The active shutter is controlled to be turned on / off so as to capture an image, so that a planar image can be viewed.
In addition, when the viewing-side control unit determines that fatigue has not been recovered from the detection result by the fatigue state detection unit after a predetermined time has elapsed since viewing the flat image, the viewer controls the on / off of the active shutter to control the viewer. It is possible to reduce the amount of light reaching the eyes.
In addition, the display-side control means displays a display for prompting fatigue attention on the screen when it is determined from the identification information received via the communication means that there is one viewer, and a display for prompting the fatigue attention is displayed. After receiving the notification of the information indicating that fatigue has not been recovered from the viewing-side control means via the communication means, switching to a video with a sense of comfort is performed, and the shutdown process is performed after a predetermined time has elapsed. can do.
In the stereoscopic video viewing tool and the stereoscopic video display system according to the present invention, if the viewing-side control unit of the stereoscopic video viewing tool determines that there is fatigue from the detection result by the fatigue state detection unit, one of the left and right eyes By controlling on / off of the active shutter so as to capture a video corresponding to one, a planar video is viewed.

  According to the stereoscopic video viewing tool and the stereoscopic video display system of the present invention, if the viewing-side control unit of the stereoscopic video viewing tool determines that there is fatigue from the detection result by the fatigue state detection unit, Since the active shutter on / off is controlled so as to capture the video corresponding to either one, and the planar video is viewed, even if there are multiple viewers, Fatigue can be reduced for each individual viewer without disturbing the viewing of the video.

It is a figure for demonstrating one Embodiment of the three-dimensional video display system of this invention. 2 is a flowchart for explaining the operation of the stereoscopic video display system of FIG. 1. It is a figure for demonstrating operation | movement of the three-dimensional video display system of FIG. It is a figure for demonstrating operation | movement of the three-dimensional video display system of FIG.

  The details of the embodiment of the stereoscopic video display system of the invention will be described below. FIG. 1 is a diagram showing an embodiment of a stereoscopic video display system of the present invention.

  As shown in the figure, the stereoscopic video display system includes a 3D television 10 that is a stereoscopic video display device and 3D glasses 20 that is a stereoscopic video viewing tool. The 3D television 10 includes a tuner 11, a decoder 12, an image processing unit 13, a liquid crystal control unit 14, a liquid crystal panel 15, a wireless communication transceiver 16, a power supply control unit 17, an inverter 18, a backlight 18a, and a microcomputer 19.

  The tuner 11 performs channel selection according to a channel selection instruction from a remote controller (not shown). The decoder 12 filters the packet data of the broadcast signal selected by the tuner 11 and performs image and audio decoding processing.

  The image processing unit 13 outputs a video signal based on the image signal decoded by the decoder 12 to the liquid crystal control unit 14. Here, when displaying 3D video in the frame sequential system, a video signal that alternately displays left-eye video and right-eye video for each frame is output.

  The liquid crystal control unit 14 controls driving of the liquid crystal panel 15 based on the video signal from the image processing unit 13. The liquid crystal panel 15 displays 3D video and the like under the control of the liquid crystal control unit 14. The wireless communication transceiver 16 that is a communication means transmits and receives data by Bluetooth or the like.

  The power supply controller 17 turns on / off the main power supply by an operation of a remote controller (not shown) or control by the microcomputer 19. The inverter 18 outputs driving power for driving the backlight 18a. The backlight 18 a is a light source disposed on the back surface of the liquid crystal panel 15.

  The microcomputer 19 that is a display-side control means controls the operation of each unit in accordance with an operation of a remote controller (not shown). Further, the microcomputer 19 grasps the number of viewers based on the notification of identification information that is different for each 3D glasses 20 from the 3D glasses 20 received via the wireless communication transceiver 16. In addition, the microcomputer 19 receives the notification of the information indicating fatigue from the 3D glasses 20 side received via the wireless communication transceiver 16 and the notification of the information indicating that the fatigue has not been recovered. And a process such as shutdown by controlling the power control unit 17.

  The 3D glasses 20 include a heart rate monitor 21, a pupil sensor 22, an active shutter 23, a synchronization signal receiving unit 24, and a microcomputer 25.

  The heart rate monitor 21 which is a fatigue state detection unit measures the heart rate of the viewer wearing the 3D glasses 20. The pupil sensor 22 which is a fatigue state detection means counts the number of blinking eyes.

  The active shutter 23 is turned on / off in synchronization with the switching of the left-eye video and the right-eye video displayed alternately on the screen of the 3D television 10, so that the corresponding video can be seen respectively for the left and right eyes. It is to make. Thereby, binocular parallax is created and a three-dimensional image is obtained. Note that when the 2D video that is a planar video is visible, the left and right of the active shutter 23 are simultaneously turned on / off so as to be synchronized with either the left or right video.

  The synchronization signal receiving unit 24 receives a synchronization signal or the like associated with switching between the left-eye video and the right-eye video display from the wireless communication transceiver 16 of the 3D television 10.

  The microcomputer 25 controls on / off of the active shutter 23 based on the synchronization signal received by the synchronization signal receiving unit 24. Further, the microcomputer 25 controls on / off of the active shutter 23 based on the detection result from the heart rate monitor 21 and / or the pupil sensor 22. Further, the microcomputer 25 notifies the wireless communication transceiver 16 of the 3D television 10 of notification of information indicating fatigue, notification of information indicating non-recovery of fatigue, and notification of identification information of itself by Bluetooth or the like.

  Next, the operation of the stereoscopic video display system will be described with reference to FIGS.

  First, as shown in FIG. 2, when 3D video is displayed on the 3D television 10 (step S <b> 30), when the viewer turns on the 3D glasses 20 with the 3D glasses 20, the microcomputer 25 identifies itself. Information is notified to the wireless communication transceiver 16 of the 3D television 10 by Bluetooth or the like (step S10).

  Further, when the power of the 3D glasses 20 is turned on, the microcomputer 25 of the 3D glasses 20 is operated, and the on / off of the active shutter 23 is controlled based on the synchronization signal received by the synchronization signal receiving unit 24 and the 3D image is viewed. (Step S11).

  While viewing 3D video, the heart rate of the viewer wearing 3D glasses 20 is measured by the heart rate monitor 21 of the 3D glasses 20, and the number of eye blinks is counted by the pupil sensor 22. (Step S12).

  Then, the microcomputer 25 of the 3D glasses 20 determines whether fatigue has been detected (step S13). Here, for example, the microcomputer 25 registers the viewer's normal heart rate and the number of blinks as fatigue reference data in a memory (not shown) of the 3D glasses 20 and blinks the heart rate. It can be performed by confirming whether or not both of the number of times are displaced by a predetermined amount from the fatigue reference data.

  Further, the normal heart rate and the number of blinks of a plurality of general viewers are registered in advance in a memory (not shown) of the 3D glasses 20 as fatigue reference data, and either or both of the heart rate and the number of blinks are registered. It may be determined whether fatigue has been detected by checking whether one side has been displaced from the fatigue reference data by a predetermined amount.

  It should be noted that such normal fatigue standard data for a plurality of general viewers may be arbitrarily changed by the viewer without being fixed. If it does in this way, the detection standard of fatigue can be changed suitably according to a viewer's physical condition etc.

  If fatigue is not detected (step S13: NO), the process proceeds to step S11 and viewing of the 3D video is continued. However, if fatigue is detected (step S13: YES), 3D glasses are displayed. Information indicating fatigue is sent from the 20 microcomputers 25 to the wireless communication transceiver 16 of the 3D television 10 (step S14).

  At this time, the microcomputer 19 of the 3D television 10 determines whether the number of viewers is one (step S32). That is, if there are a plurality of viewers, the self-identification information from the microcomputer 25 of the 3D glasses 20 used by each viewer is notified to the wireless communication transceiver 16 of the 3D television 10, and the 3D television 10 side. Then, it becomes possible to determine the number of viewers from different identification information.

  When the microcomputer 19 of the 3D television 10 determines that the number of viewers is not one (step S32: NO), information indicating that there are a plurality of viewers is notified to each 3D glasses 20. (Step S31).

  If a light emitter such as an LED is provided on the 3D glasses 20 side and information indicating fatigue is provided in step S14, information indicating that there are a plurality of viewers is provided in step S31. The light emitter may be turned on or blinked. Accordingly, it is possible to call attention to fatigue only to a viewer who has detected fatigue without interfering with viewing of 3D video by a viewer who has not detected fatigue.

  If it is determined in step S32 that the number of viewers is one (step S32: YES), fatigue warning is displayed on the screen of the 3D television 10 under the control of the microcomputer 19, for example, as shown in FIG. 10a is displayed in a pop-up or the like (step S33). As described above, the fatigue warning display 10a is displayed on the screen of the 3D television 10 as a pop-up or the like, so that viewers who are enthusiastic about watching 3D video can be urged to recognize fatigue.

  Note that the display of the fatigue warning display 10a in a pop-up or the like may be deleted after a predetermined time (for example, about 30 seconds or about 1 minute) has elapsed. This is because the display of the fatigue warning display 10a in a pop-up or the like is performed for a predetermined time, so that it is considered that the viewer is sufficiently encouraged to recognize fatigue.

  Next, the microcomputer 25 of the 3D glasses 20 determines whether or not the fatigue has been recovered (step S15). Here, in the same manner as described above, for example, whether or not the fatigue has been recovered is determined by confirming whether or not either the heart rate and / or the number of blinks are displaced by a predetermined amount from the fatigue reference data. .

  If it is determined that the fatigue has been recovered (step S15: YES), the process proceeds to step S11, and viewing of the 3D video is continued. At this time, notification of information indicating that fatigue has been recovered may be performed from the microcomputer 25 of the 3D glasses 20 to the wireless communication transceiver 16 of the 3D television 10. As a result, the fatigue warning display 10a displayed on the screen of the 3D television 10 without being erased can be forcibly erased, and obstruction of viewing of the 3D video can be eliminated.

  On the other hand, if it is not determined that the fatigue has been recovered (step S15: NO), switching from the 3D video to the 2D video is performed (step S16).

  Here, switching from 3D video to 2D video is performed by the operation of the active shutter 23 under the control of the microcomputer 25 as shown in FIG. That is, as shown in FIG. 4A, when viewing 3D video, the active shutter 23 is synchronized so that the left and right images alternately displayed in the frame sequential method enter the left and right eyes, respectively. Thereby, binocular parallax occurs and 3D video can be obtained.

  On the other hand, when viewing 2D video, as shown in FIG. 4B, the left and right sides of the active shutter 23 are simultaneously opened and closed to synchronize with either the left or right video. Thereby, there is no binocular parallax and 2D video can be obtained. In 2D video, adjustment congestion contradiction does not occur, so there is no feeling of fatigue that occurs during 3D video, and the eyes can rest.

  Next, the microcomputer 25 of the 3D glasses 20 determines whether or not a predetermined time has elapsed (step S17). When the predetermined time has elapsed (step S17: YES), it is determined whether or not fatigue has been recovered (step S17: YES). Step S18). Here, in the same manner as described above, for example, whether or not the fatigue has been recovered is determined by confirming whether or not either the heart rate and / or the number of blinks are displaced by a predetermined amount from the fatigue reference data. .

  In addition, the predetermined time for determining whether or not the fatigue has been recovered here depends on individual differences, but is preferably set according to the average viewer recovery time. In other words, if it is determined whether or not fatigue has been recovered immediately after switching from 3D video to 2D video, it is easily predicted that fatigue of most viewers will not be recovered at this stage. It is preferable to determine whether or not fatigue has been recovered in step S18 after a predetermined time (for example, 10 minutes) has elapsed in S17.

  Note that the time in step S17 may be changed as appropriate by the viewer because there are individual differences.

  If it is determined that the fatigue has been recovered (step S18: YES), the process proceeds to step S11, and viewing of the 3D video is continued, but if it is not determined that the fatigue has been recovered (step S18: NO). It is determined whether there is notification of information indicating that there are a plurality of viewers (step S19).

  Here, when there is a notification of information indicating that there are a plurality of viewers (step S19: YES), the microcomputer 25 switches to the safety mode (step S20).

  As the switching to the safety mode here, for example, the duty ratio is reduced and the on period is shortened at the timing of simultaneously opening and closing the left and right sides of the active shutter 23 shown in FIG. Do something like that. In this way, the amount of light reaching the viewer's eyes is reduced, so that the viewer's eyes where fatigue has been detected can be rested. In addition, it is possible to forcibly urge a viewer who is enthusiastic about viewing 3D video to recognize fatigue.

  In addition, since the switching to the safety mode is performed on the 3D glasses 20 side worn by the viewer who has detected fatigue, a viewer who does not detect fatigue can view the 3D video as it is.

  On the other hand, in step S19, when there is no notification of information indicating that there are a plurality of viewers (step S19: NO), fatigue is not recovered from the microcomputer 25 of the 3D glasses 20 to the wireless communication transceiver 16 of the 3D television 10. Notification of the information shown is performed (step S21).

  At this time, on the 3D television 10 side, the video is switched under the control of the image processing unit 13 by the microcomputer 19 (step S34). In this case, since there is only one viewer, for example, a video with a sense of comfort can be displayed on the screen of the 3D television 10.

  On the 3D television 10 side, after a predetermined time has elapsed, shutdown processing is performed under the control of the power supply control unit 17 by the microcomputer 25 (step S35). As a result, no video is displayed from the 3D television 10, so that when there is only one viewer, the viewer's eyes in which fatigue has been detected can be forcibly rested.

  Thus, in this embodiment, as a basic operation of the 3D glasses 20 that is a stereoscopic video viewing tool, the heart rate from the heart rate monitor 21 and the pupil sensor 22 that are fatigue state detection means by the microcomputer 25 that is the viewing side control means. Corresponding to either one of the left or right eyes if it is determined that the number of blinks is accompanied by fatigue from the detection result by checking whether or not either or both of the blinks are displaced from the fatigue reference data by a predetermined amount On / off of the active shutter 23 is controlled so as to capture the image to be captured, and 2D video (planar video) is viewed. Therefore, measures to reduce fatigue for viewers who have detected fatigue on the 3D glasses 20 side are provided. Can be taken.

  Further, even when 2D video (planar video) is viewed, if there is no recovery from fatigue, for example, the amount of light reaching the viewer's eyes is reduced to rest the viewer's eyes. Since the switching to the safety mode is performed, it is possible to forcibly urge the viewer who is enthusiastic about viewing 3D video to be aware of fatigue.

  In this embodiment, the microcomputer 25 of the 3D glasses 20 is notified of its own identification information to the 3D television 10 side, and the microcomputer 19 as the display-side control means passes through the wireless communication transceiver 16 as the communication means. If it is determined that there are a plurality of viewers based on the identification information already received, the information indicating that there are a plurality of viewers is notified, and the microcomputer 25 of the 3D glasses 20 When the information indicating that there are a plurality of viewers is received after the notification of the information indicating is performed, the luminous body (not shown) is turned on or blinked, and further, fatigue is detected from the detection results from the heart rate monitor 21 and the pupil sensor 22. If it is determined that the viewer has not recovered, the 3D glasses 20 side of the viewer who has detected fatigue is actuated so as to capture an image corresponding to one of the left and right eyes. The on / off of the shutter 23 is controlled so that 2D video (planar video) can be viewed, and if there is no recovery from fatigue, for example, the amount of light reaching the viewer's eyes is reduced to rest the viewer's eyes. Switch to the safety mode to make it happen.

  As a result, even when there are a plurality of viewers, it is possible to recognize the fatigue of viewers who are enthusiastic about watching 3D video without disturbing other viewers watching 3D video (stereoscopic video). Can be forcibly urged, and fatigue can be reduced for each individual viewer.

  When the microcomputer 25 of the 3D glasses 20 notifies the 3D television 10 of information indicating fatigue, and the microcomputer 19 of the 3D television 10 determines that there is only one viewer, the screen of the 3D television 10 is displayed. Since the fatigue warning display 10a is displayed as a pop-up or the like, it is possible to prompt the viewer who is enthusiastic about watching 3D video to recognize fatigue.

  In addition, after the fatigue warning display 10a is displayed in a pop-up or the like, when a notification of information indicating that fatigue has not been recovered is received from the microcomputer 25 of the 3D glasses 20, switching to a video with a sense of comfort is performed, and a predetermined time has elapsed. After that, since the shutdown process is performed, when there is only one viewer, it is possible to promote the reduction of the viewer's fatigue by a comfortable image, and to display the image from the 3D television 10. By eliminating it, it is possible to forcibly rest the eyes of viewers whose fatigue has been detected.

  The present invention can be applied not only to viewing 3D video from a 3D television but also to a system for viewing monitor video in a video conference or the like.

DESCRIPTION OF SYMBOLS 10 3D television 10a Fatigue attention display 11 Tuner 12 Decoder 13 Image processing part 14 Liquid crystal control part 15 Liquid crystal panel 16 Wireless communication transceiver 17 Power supply control part 18 Inverter 18a Backlight 19 Microcomputer 20 3D glasses 21 Heart rate monitor 22 Eye sensor 23 Active shutter 24 Sync signal receiver 25 Microcomputer

Claims (6)

A stereoscopic video viewing tool for viewing a frame sequential stereoscopic video in which videos corresponding to the left and right eyes are alternately displayed on the screen,
An active shutter that captures the image by turning on / off corresponding to the image of either of the left and right eyes;
Fatigue state detecting means for detecting a fatigue state of a viewer who views the video;
A viewing side control means for controlling the operation of the active shutter based on the detection result of the fatigue state detection means,
When the viewing-side control means determines that there is fatigue from the detection result by the fatigue state detection means, the viewing-side control means turns on / off the active shutter so as to capture the video corresponding to one of the left and right eyes. A stereoscopic video viewing tool characterized by controlling and allowing a planar video to be viewed. A light emitter that is turned on or blinked under the control of the viewing side control means;
2. The stereoscopic image viewing tool according to claim 1, wherein the viewing-side control unit turns on or blinks the light-emitting body when it is determined that there is fatigue from the detection result of the fatigue state detection unit. The viewing side control means includes
After controlling the on / off of the active shutter so that the planar image is viewed, if it is determined that the fatigue has been recovered from the detection result by the fatigue state detecting means after a predetermined time has elapsed, the active shutter is turned on / off. To control and view stereoscopic images,
When it is determined that fatigue has not been recovered from the detection result by the fatigue state detection means after the predetermined time has elapsed, the amount of light reaching the viewer's eyes is reduced by controlling on / off of the active shutter. The stereoscopic video viewing tool according to claim 1 or 2. A stereoscopic video viewing tool for viewing stereoscopic video;
A three-dimensional video display device for displaying the three-dimensional video of the frame sequential method corresponding to each of the left and right eyes,
The stereoscopic video viewing tool is:
An active shutter that captures the image by turning on / off corresponding to the image of either of the left and right eyes;
Fatigue state detecting means for detecting a fatigue state of a viewer who views the video;
A light-emitting body that lights or flashes;
In addition to performing control of the operation of the active shutter based on the detection result of the fatigue state detection unit and notification of information indicating fatigue associated with the detection result, a viewing side control unit that performs notification of identification information of itself With
The stereoscopic image display device includes:
Communication means for communicating with the viewing side control means;
Display side control means for controlling at least video display based on various information received via the communication means,
The display side control means includes
When receiving notification of information indicating the fatigue via the communication means, if it is determined that there are a plurality of viewers from the identification information received via the communication means, information indicating that there is a plurality,
The viewing side control means includes
After notifying the information indicating fatigue, when receiving information indicating that the viewer is plural, the light emitter is turned on or blinked,
Further, when it is determined that the fatigue is not recovered from the detection result by the fatigue state detection means, the active shutter is controlled to be turned on / off so as to capture the image corresponding to one of the left and right eyes, and a planar image is obtained. 3D image display system characterized by allowing viewers to watch.   When the viewing-side control unit determines that fatigue has not been recovered from the detection result of the fatigue state detection unit after a predetermined time has elapsed since viewing the flat image, the viewing-side control unit controls the on / off of the active shutter to control the viewer's eyes. The stereoscopic image display system according to claim 4, wherein the amount of light reaching the light source is reduced. The display side control means includes
If it is determined that the number of viewers is one from the identification information received via the communication means, a display for warning fatigue is displayed on the screen.
After performing the display for prompting attention to fatigue, when receiving notification of information indicating that fatigue has not been recovered from the viewing-side control means via the communication means, switching to a video with a sense of comfort,
The stereoscopic video display system according to claim 4, wherein a shutdown process is performed after a predetermined time has elapsed.

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