as far as i know, in 3d glasses they uses the polarization to filter out images and to show one image to one of the eyes and another to the other eye. two images are being projected on a supported screen.
eka penawa machan habai loku wnasak sahithawa balanna nam amarui eth tikak terenawa ..
kohomath oya kiyana vidihatama 3d balanna nam led tv ekakma ganna wenawane
.CyberLink.l__DVD10 me thiyenne player eka thama ai try karala balanna