Polarized light+TV

[Al Skierkiewicz]

Originally Posted by usbcd36

Anyway, you could use LCD shutter glasses with a 120 Hz TV nowadays (the HD transition is causing them to become more common, especially because they enhance the picture quality of 24 fps movies)

This technology is called "line doubling" and is a technique to make standard def appear more hi def. It is also used to interpolate an interlaced video source to display on a progressive scan monitor. In projection systems, this technique also gives a brighter output by doubling the amount of scan lines displayed at any one point in time. Remember that HD or DTV signals use 60 Hz frame rate max. Anything more than that is generated in the display.