3D - 2

Why do Samsung 3D TV glasses go black?

I have a Samsung 3D TV and the glasses go black when I lie down on my side. Why is this happening?

Public Comments

1. The Perception of 3D is a trick played by the technology to fool your eyes and brain in believing that you are looking at the objects at various depths. For this to work, there are 2 sets of video sequence captured one as if seen by your left eye and the other one by your right eye. The slight difference in the images and the further brain processing gives you the perception of the depth. However, these 2 cameras are placed HORIZONTALLY apart from each other so when you playback the movie, you are expected such that your EYES are in a HORIZONTAL line - The position of eyes when you are in sitting position. When you tilt your head or lie down, this position is disturbed and the 3D effect will go off. To avoid this, the 3D glasses block your vision by making its screen opaque thus causing you a black screen.
2. All Samsung 3D TVs are active 3D tvs and active 3D tvs use shutter glasses technology. Basically the screen sends signals to the glasses to show the images and there's a certain degree range in which the glasses have to stay to get those signals. When you lie down on your side, the glasses get out of that signal range and thus the image black out. This is problem that only active 3D TVs have. Passive 3D TVs like LG Cinema 3D don't have that problem because it uses a different technology and lets you watch 3D in any position you want.