Originally Posted by
Harrison
Completely different technology. Light Gun games work with CRT screens because of how a CRT screen draws the image. The beam scans from the top to the bottom at a set speed, and when you use a light gun, the moment you fire at the screen the software does some clever stuff to measure where on screen you fired based on where the CRT scanning was at the moment you pressed the trigger.
There was a light gun designed to work with LCD screens which used two tracking cameras mounted above the TV, so they actually tracked the direction the gun you were holding was pointing, rather than having anything to do with the display itself. So similar to the Wii controls in a way. Not sure if it's still in development though.