Patent ID: 8797390
Filing Date: 2014-08-05
Classification: H04N

Abstract:
1. A method for operating a three-dimensional (3D) viewing device, the method comprising: activating the 3D viewing device when a switch in the 3D viewing device is turned on; transmitting a pairing signal to an image display device after activating the 3D viewing device; receiving a synchronization signal from the image display device after pairing between the 3D viewing device and the image display device is completed; alternately opening a left glass and a right glass according to the synchronization signal during an image display period of a 3D image displayed on the image display device; determining a synchronization signal period at intervals of the received synchronization signal; simultaneously opening the left glass and the right glass in one of a left-eye image display period and a right-eye image display period of the 3D image displayed on the image display device and simultaneously closing the left glass and the right glass in the other one of the left-eye image display period and the right-eye image display period when the synchronization signal period is out of a predetermined range; and simultaneously opening the left glass and the right glass during an image display period of a two-dimensional (2D) image displayed on the image display device, wherein an opening period of the left glass and the right glass at the simultaneous opening of the left glass and the right glass is shorter than an opening period of the left glass and the right glass at the alternately opening of the left glass and the right glass.