04758818 is referenced by 80 patents and cites 26 patents.

A switchable color filter comprising a pair of twisted nematic liquid crystal devices (126 and 128) and a light polarizing system (108) which includes three color selective polarizing filters (102, 104, and 106) is incorporated as an optical subassembly in a field sequential color display system (100) to provide output states of white light and light of three different colors to form an image in full color and high brightness with strong color contrast.

Title
Switchable color filter and field sequential full color display system incorporating same
Application Number
7/535504
Publication Number
4758818
Application Date
September 26, 1983
Publication Date
July 19, 1988
Inventor
Rolf S Vatne
Beaverton
OR, US
Agent
Paul S Angello
John D Winkelman
Assignee
Tektronix
OR, US
IPC
G09G 3/36
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