05233385 is referenced by 394 patents and cites 3 patents.

A method for increasing the brightness of a scene in a color projection system is disclosed. The brightness can be increased in both temporal and spatial filtering systems. In a temporal system, a portion of the total illumination time is allocated to white light to raise the overall brightness. In a spatial system, part of the illuminated area is allocated to white light. The parts could be allocated as regions on a spatial light modulator, or a spatial light modulator could be dedicated to that area to use white light.

Title
White light enhanced color field sequential projection
Application Number
7/809816
Publication Number
5233385
Application Date
December 18, 1991
Publication Date
August 3, 1993
Inventor
Jeffrey B Sampsell
Plano
TX, US
Agent
Richard L Donaldson
James C Kesterson
Julie L Reed
Assignee
Texas Instruments Incorporated
TX, US
IPC
G03B 27/72
View Original Source