Eyewear device, display device, video system with eyewear and display devices, and control methods of eyewear device and video system

A display device, comprising:

• a display portion configured to display a video which is perceived stereoscopically, by means of a left frame image observed by a left eye and a right frame image observed by a right eye;
• a second controller configured to determine display timings, at which the left and right frame images are displayed, and cause the display portion to sequentially display the left and right frame images at the display timings;
• and
• a control signal transceiver configured to transmit a synchronous control signal for notifying an eyewear device of the display timing under control of the second controller, the eyewear device performing an adjustment operation for adjusting a fluctuation timing, at which a transmission amount of image light to the left and right eyes increases or decreases, and allowing the video to be perceived stereoscopically, wherein
• the control signal transceiver receives characteristic data about the adjustment operation from the eyewear device, and
• the second controller controls transmission of the synchronous control signal in response to the display timings and the characteristic data.

A video system, comprising:

• an eyewear device configured to perform an adjustment operation for adjusting a fluctuation timing, at which a transmission amount of image light to a left eye and a right eye increases or decreases, and allowing a video to be perceived stereoscopically;
• and
• a display device configured to display the video by means of a left frame image observed by the left eye and a right frame image observed by the right eye, wherein
• the display device includes a transmitter configured to transmit a synchronous control signal which defines the fluctuation timing, and
• the eyewear device includes:
• a light amount adjuster configured to perform the adjustment operation;
• a storage portion configured to store characteristic data about the adjustment operation;
• a receiver configured to receive the synchronous control signal;
• and
• a first controller configured to control the light amount adjuster,
• the first controller corrects the fluctuation timing defined by the synchronous control signal based on the characteristic data to control the adjustment operation.

A video system, comprising:

• an eyewear device configured to perform an adjustment operation for adjusting a fluctuation timing, at which a transmission amount of image light to a left eye and a right eye increases or decreases, and allowing a video to be perceived stereoscopically;
• and
• a display device configured to display the video by means of a left frame image observed by the left eye and a right frame image observed by the right eye, wherein
• the eyewear device includes:
• a light amount adjuster configured to execute the adjustment operation;
• a storage portion configured to store characteristic data about the adjustment operation;
• a data transceiver configured to transmit the characteristic data to the display device;
• and
• a first controller configured to control the light amount adjuster, and
• the display device includes:
• a display portion configured to display the video;
• a second controller configured to determine display timings, at which the left and right frame images are displayed, and cause the display portion to sequentially display the left and right frame images at the display timings;
• and
• a control signal transceiver configured to receive the characteristic data and transmit a synchronous control signal for notifying the data transceiver of the display timings under control of the second controller,
• the second controller controls transmission of the synchronous control signal, based on the display timings and the characteristic data, and
• the first controller controls the light amount adjuster in response to the synchronous control signal.

A control method of a video system including an eyewear device configured to perform an adjustment operation for adjusting a fluctuation timing, at which a transmission amount of image light to a left eye and a right eye increases or decreases, and allowing a video to be perceived stereoscopically, and a display device configured to display the video by means of a left frame image observed by the left eye and a right frame image observed by the right eye, the control method comprising:

• transmitting characteristic data about the adjustment operation from the eyewear device to the display device;
• determining display timings at which the left and right frame images are displayed;
• controlling transmission of a synchronous control signal for notifying the eyewear device of the display timing, based on the display timings and the characteristic data;
• and
• adjusting the fluctuation timing in response to the synchronous control signal.