Method and system for determining transmittance intervals in 3D shutter eyewear based on display panel response time
View Patent ↗A 3D video viewing shutter device receives display response time from a 3D video display device for determining shutter open and close times. Response time may correspond to display type, a particular display and/or a change in pixel illumination levels between frames. The shutter device receives response information during device initialization and/or corresponding to changing pixel illumination levels. A sequence of 3D frames may comprise a pattern of left frames, right frames, blank frames and/or frames comprising a combination of left and right frames. Based on display device and/or shutter device response times, the shutter device may extend shutter transmittance time during a frame display interval into a blank frame interval. Transmittance may be enabled during display of blank frames subsequent to left or right frames. The shutter device and display device may communicate via a wireless link for example, via a Bluetooth wireless link utilizing Bluetooth clocks.
1. A method for communication, the method comprising:
in a 3D video viewing shutter device that is communicatively coupled to a 3D video display device:
receiving display response time information from said 3D video display device for display of 3D frames by said 3D video display device;
determining time instants that correspond to when to open and when to close a left shutter or a right shutter of said 3D video viewing shutter device, using said received display response time information, wherein a transmittance interval of a left shutter or a right shutter is dynamically adjusted based on said received display response time information and extends across frames based on display response; and
opening or closing said left shutter or said right shutter of said 3D video viewing shutter device using said determined time instants.
2. The method according to claim 1 , wherein said received display response time information is for a type of display utilized in said 3D video display device.
3. The method according to claim 1 , wherein said received display response time information is for a particular display utilized in said 3D video display device.
4. The method according to claim 1 , wherein said received display response time information includes or is derived from a response time for a change in pixel illumination levels between display of two or more video frames as measured by the 3D video display device.
5. The method according to claim 1 , comprising receiving said display response time information, for one or more events comprising:
initialization of said 3D video viewing shutter device:
when one or more frames comprising a lower level of pixel illumination is followed by one or more frames comprising a higher level of pixel illumination; or
when one or more frames comprising a higher level of pixel illumination is followed by one or more frames comprising a lower level of pixel illumination.
6. The method according to claim 1 , wherein said 3D frames comprise a pattern comprising two or more of:
left frames;
right frames;
blank frames; and
frames comprising a combination of left and right frame data.
7. The method according to claim 1 , comprising extending a left shutter transmittance time from display time of a left frame into display time of one or more subsequent blank frames or extending a right shutter transmittance time from display time of a right frame into display time of one or more blank frames, based at least in part on one or both of:
said display response time information; and
a response time associated with said 3D video viewing shutter device.
8. The method according to claim 1 , comprising enabling transmittance of a left shutter during display time of one or more blank frames that is subsequent to display time of a left 3D frame or enabling transmittance of a right shutter during display time of one or more blank frames that is subsequent to display time of a right 3D frame based at least in part on one or both of:
said display response time information; and
a response time associated with said 3D video viewing shutter device.
9. A system for communication, the system comprising:
one or more processors, one or more circuits, or any combination thereof for use in a 3D video viewing shutter device, said 3D video viewing shutter device being communicatively coupled to a 3D video display device during operation, wherein said one or more processors, one or more circuits, or any combination thereof are operable to:
receive display response time information from said 3D video display device for display of 3D frames by said 3D video display device;
determine time instants that correspond to when to open and when to close a left shutter or a right shutter of said 3D video viewing shutter device,
use said received display response time information wherein a transmittance interval of a left shutter or a right shutter is dynamically adjusted based on said received display response time information and extends across frames based on display response;
and open or close said left shutter or said right shutter of said 3D video viewing shutter device using said determined time instants.
10. The system according to claim 9 , wherein said received display response time information is for a type of display utilized in said 3D video display device.
11. The system according to claim 9 , wherein said received display response time information is for a particular display utilized in said 3D video display device.
12. The system according to claim 9 , wherein said received display response time information includes or is derived from a response time for a change in pixel illumination levels between display of two or more video frames as measured by the 3D video display device.
13. The system according to claim 9 , wherein said one or more processors, one or more circuits, or any combination thereof is operable to receive said display response time information, for one or more events comprising:
initialization of said 3D video viewing shutter device when one or more frames comprising a lower level of pixel illumination is followed by one or more frames comprising a higher level of pixel illumination; or
when one or more frames comprising a higher level of pixel illumination is followed by one or more frames comprising a lower level of pixel illumination.
14. The system according to claim 9 , wherein said 3D frames comprise a pattern comprising two or more of:
left frames;
right frames;
blank frames; and
frames comprising a combination of left and right frame data.
15. The system according to claim 9 , wherein said one or more processors, one or more circuits, or any combination thereof is operable to extend a left shutter transmittance time from display time of a left frame into display time of one or more subsequent blank frames or extending a right shutter transmittance time from display time of a right frame into display time of one or more blank frames, based at least in part on one or both of:
said display response time information; and
a response time associated with said 3D video viewing shutter device.
16. The system according to claim 9 , wherein said one or more processors, one or more circuits, or any combination thereof is operable to enable transmittance of a left shutter during display time of one or more blank frames that is subsequent to display time of a left 3D frame or enabling transmittance of a right shutter during display time of one or more blank frames that is subsequent to display time of a right 3D frame based at least in part on one or both of:
said display response time information; and
a response time associated with said 3D video viewing shutter device.
17. The system according to claim 9 , wherein said one or more processors, one or more circuits, or any combination thereof is operable to communicate with said 3D video display device via a wireless link.
18. The system according to claim 9 , wherein said one or more processors, one or more circuits, or any combination thereof is operable to communicate with said 3D video display device via a Bluetooth wireless link utilizing Bluetooth clocks.
19. A method for communication, the method comprising: in a 3D video viewing shutter device that is communicatively coupled to a 3D video display device:
receiving from said 3D video display device a display response time of said 3D video display device;
determining, using said display response time, at least one time instant that corresponds to when to open or close a shutter of said 3D video viewing shutter device wherein a transmittance interval of a left shutter or a right shutter is dynamically adjusted based on said received display response time information and extends across frames based on display response;
and opening or closing said shutter in accordance with said at least one time instant.
20. The method of claim 19 , wherein said display response time comprises at least one of a time for a left frame to illuminate said 3D video display device, a time for a right frame to illuminate said 3D video display device, or a time for a black frame to reach a saturation level on said 3D video display device.