Display system, display device, head-mounted display device, display control method, control method for display device, and computer program

1. A display system comprising:

a transmitting device configured to transmit video data; and

a first display device and a second display device configured to display videos on the basis of the video data transmitted by the transmitting device, wherein

the transmitting device includes a data transmitting section configured to wirelessly transmit the video data formed by continuous frames to the first display device and the second display device,

the first display device includes:

a first video receiving section configured to receive the video data transmitted by the transmitting device; and

a first display section configured to display a video on the basis of the video data received by the first video receiving section, to only a first eye of the user to visually recognize the video,

the second display device, that is separate from the first display device, includes:

a second video receiving section configured to receive the video data transmitted by the transmitting device; and

a second display section configured to display a video on the basis of the video data received by the second video receiving section, to only a second eye of the user to visually recognize a video, and

the display system detects deviation between (1) timing of displaying frames of the video displayed by the first display section and visually recognized by the first eye and (2) timing of displaying frames of the video displayed by the second display section and visually recognized by the second eye.

2. The display system according to claim 1 , wherein

the first display device includes a first inter-device communication section configured to communicate with the second display device,

the second display device includes a second inter-device communication section configured to communicate with the first display device, and

the first inter-device communication section included in the first display device and the second inter-device communication section included in the second display device execute the communication to detect the deviation between the video displayed by the first display section and the video displayed by the second display section.

3. The display system according to claim 2 , wherein

the transmitting device transmits the video data formed by frames,

the first display device displays the video with the first display section in units of frames on the basis of the video data received by the first video receiving section,

the second display device displays the video with the second display section in units of frames on the basis of the video data received by the second video receiving section, and

the first inter-device communication section and the second inter-device communication section execute the communication to detect deviation between the frame displayed by the first display section and the frame displayed by the second display section.

4. The display system according to claim 3 , wherein

the transmitting device transmits the video data and frame identification information for identifying the respective frames of the video data, and

the first inter-device communication section and the second inter-device communication section execute the communication to compare frame identification information of the frame displayed by the first display section and frame identification information of the frame displayed by the second display section and detect deviation.

5. The display system according to claim 4 , wherein

the first display device transmits data including the frame identification information of the frame displayed by the first display section to the second display device with the first inter-device communication section, and

the second display device receives the data transmitted by the first display device with the second inter-device communication section, compares the frame identification information included in the data received by the second inter-device communication section with the frame identification information of the frame displayed by the second display section, and detects deviation.

6. The display system according to claim 4 , wherein, when the frame displayed by the first display section is a frame transmitted by the transmitting device later than the frame displayed by the second display section, the second display device resets display of the frames received by the second video receiving section and displays, with the first display section, the frames received by the second video receiving section next.

7. The display system according to claim 3 , wherein, when the frame displayed by the first display section is a frame transmitted by the transmitting device later than the frame displayed by the second display section, the second display device stops the display of the second display section.

8. The display system according to claim 3 , wherein

the first display device includes a storing section configured to store the frames received by the first video receiving section, and

when the frame displayed by the first display section is a frame transmitted by the transmitting device later than the frame displayed by the second display section, the first display device displays the frames stored in the storing section a plurality of times with the first display section.

9. The display system according to claim 3 , wherein

the first display device includes a storing section configured to store the frames received by the first video receiving section, and

when the frame displayed by the first display section is a frame transmitted by the transmitting device later than the frame displayed by the second display section, the first display device stops the display by the first display section by time equivalent to time for displaying a predetermined number of the frames and thereafter displays the frames stored in the storing section with the first display section.

10. The display system according to claim 1 , wherein

the first display device includes a first transmitting section configured to transmit information related to the video displayed by the first display section to the transmitting device,

the second display device includes a second transmitting section configured to transmit information related to the video displayed by the second display section to the transmitting device, and

the transmitting device includes a control section configured to detect, on the basis of the information transmitted by the first display device and the second display device, deviation between the video displayed by the first display section and the video displayed by the second display section.

11. The display system according to claim 10 , wherein

the transmitting device transmits the video data formed by the frames,

the first display device displays the video with the first display section in units of frames on the basis of the video data received by the first video receiving section,

the second display device displays the video with the second display section in units of frames on the basis of the video data received by the second video receiving section, and

the control section included in the transmitting device detects deviation between the frame displayed by the first display section and the frame displayed by the second display section.

12. The display system according to claim 11 , wherein

the transmitting device transmits the video data and frame identification information for identifying the respective frames of the video data,

the first display device transmits, with the first transmitting section, the frame identification information of the frame displayed by the first display section,

the second display device transmits, with the second transmitting section, the frame identification information of the frame displayed by the second display section, and

the control device included in the transmitting device detects, on the basis of the frame identification information transmitted by the first display device and the frame identification information transmitted by the second display device, deviation between the frame displayed by the first display section and the frame displayed by the second display section.

13. The display system according to claim 10 , wherein, when the frame displayed by the first display section is a frame transmitted from the transmitting device later than the frame displayed by the second display section, the transmitting device transmits the video data corresponding to the frame displayed by the first display section to the second display device.

14. The display system according to claim 10 , wherein, when the frame displayed by the first display section is a frame transmitted from the transmitting device later than the frame displayed by the second display section, the transmitting device transmits control data for instructing a stop of the display of the first display section to the second display device.

15. The display system according to claim 10 , wherein, when the frame displayed by the first display section is a frame transmitted from the transmitting device later than the frame displayed by the second display section, the transmitting device transmits the video data corresponding to the frame displayed by the second display section to the first display device.

16. The display system according to claim 10 , wherein, when the frame displayed by the first display section is a frame transmitted from the transmitting device later than the frame displayed by the second display section, the transmitting device transmits control data for instructing a stop of the display of the second display section to the first display device.

17. A head-mounted display device mounted on a head of a user, the head-mounted display device comprising a first display device and a second display device configured to receive video data and display videos on the basis of the received video data, wherein

the first display device includes:

a first video receiving section configured to receive the video data;

a first display section configured to cause, on the basis of the video data received by the first video receiving section, only one eye of the user to visually recognize the video; and

a first inter-device communication section configured to communicate with the second display device,

the second display device, that is separate from the first display device, includes:

a second video receiving section configured to receive the video data;

a second display section configured to cause, on the basis of the video data received by the second video receiving section, only the other eye of the user to visually recognize a video; and

a second inter-device communication section configured to communicate with the first display device, and

the first inter-device communication section included in the first display device and the second inter-device communication section included in the second display device execute the communication to detect deviation between (1) timing of displaying frames of the video displayed by the first display section and visually recognized by the one eye and (2) timing of displaying frames of the video by the second display section visually recognized by the other eye of the user.

18. A head-mounted display device mounted on a head of a user, the head-mounted display device comprising a first display device and a second display device configured to receive video data transmitted by a transmitting device and display videos on the basis of the received video data, wherein

the first display device includes:

a first video receiving section configured to receive the video data transmitted by the transmitting device;

a first display section configured to cause, on the basis of the video data received by the first video receiving section, only one eye of the user to visually recognize a video; and

a first transmitting section configured to transmit frame identification information identifying frames of the video displayed by the first display section to the transmitting device, and

the second display device, that is separate from the first display device, includes:

a second video receiving section configured to receive the video data transmitted by the transmitting device;

a second display section configured to cause, on the basis of the video data received by the second video receiving section, only the other eye of the user to visually recognize a video; and

a second transmitting section configured to transmit frame identification information identifying frames of the video displayed by the second display section to the transmitting device,

wherein deviation is detected between (1) timing of displaying frames of the video displayed by the first display section and visually recognized by the one eye and (2) timing of displaying frames of the video displayed by the second display section and visually recognized by the other eye.

19. A display control method in a display system including a transmitting device that transmits video data and a first display device and a second display device that display videos on the basis of the video data transmitted by the transmitting device, the first display device being separate from the first display device, the display control method comprising:

the transmitting device wirelessly transmitting the video data formed by continuous frames to the first display device and the second display device;

the first display device receiving the video data transmitted by the transmitting device and displaying a video with a first display section on the basis of the received video data, to only a first eye of a user to visually recognize the video;

the second display device receiving the video data transmitted by the transmitting device and displaying a video with a second display section on the basis of the received video data, to only a second eye of the user to visually recognize a video; and

detecting deviation between (1) timing of displaying frames of the video displayed by the first display section and visually recognized by the first eye and (2) timing of displaying frames of the video displayed by the second display section and visually recognized by the second eye.