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Method for making precisely configured flakes useful in optical devices

United States Patent

July 3, 2007
View the Complete Patent at the US Patent & Trademark Office
Precisely configured, especially of geometric shape, flakes of liquid crystal material are made using a mechanically flexible polymer mold with wells having shapes which are precisely configured by making the mold with a photolithographically manufactured or laser printed master. The polymer liquid crystal is poured into the wells in the flexible mold. When the liquid crystal material has solidified, the flexible mold is bent and the flakes are released and collected for use in making an electrooptical cell utilizing the liquid crystal flakes as the active element therein.
Trajkovska-Petkoska; Anka (Rochester, NY), Jacobs; Stephen D. (Pittsford, NY), Kosc; Tanya Z. (Rochester, NY), Marshall; Kenneth L. (Rochester, NY)
University of Rochester (Rochester, NY)
10/ 383,603
March 7, 2003
The United States Government, acting through the U.S. Department of Energy has rights in this invention pursuant to agreement DE-FC03-92SF19460.