Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
Between 2005 and 2007, the company purchased StereoGraphics Inc. and optical components technology company ColorLink, a provider of rear-projection television (RPTV) equipment, polarizing film and optical technologies. RealD developed its technology to create its 3D cinema systems.