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Title: Method for making precisely configured flakes useful in optical devices

Abstract

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.

Inventors:
 [1];  [2];  [1];  [1]
  1. Rochester, NY
  2. Pittsford, NY
Issue Date:
Research Org.:
Univ. of Rochester, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
913260
Patent Number(s):
7238316
Application Number:
10/383,603
Assignee:
University of Rochester (Rochester, NY)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29L - INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29C - SHAPING OR JOINING OF PLASTICS
DOE Contract Number:  
FC03-92SF19460
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Trajkovska-Petkoska, Anka, Jacobs, Stephen D, Kosc, Tanya Z, and Marshall, Kenneth L. Method for making precisely configured flakes useful in optical devices. United States: N. p., 2007. Web.
Trajkovska-Petkoska, Anka, Jacobs, Stephen D, Kosc, Tanya Z, & Marshall, Kenneth L. Method for making precisely configured flakes useful in optical devices. United States.
Trajkovska-Petkoska, Anka, Jacobs, Stephen D, Kosc, Tanya Z, and Marshall, Kenneth L. Tue . "Method for making precisely configured flakes useful in optical devices". United States. https://www.osti.gov/servlets/purl/913260.
@article{osti_913260,
title = {Method for making precisely configured flakes useful in optical devices},
author = {Trajkovska-Petkoska, Anka and Jacobs, Stephen D and Kosc, Tanya Z and Marshall, Kenneth L},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2007},
month = {7}
}

Patent:

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Works referenced in this record:

Electric-field-induced motion of polymer cholesteric liquid-crystal flakes in a moderately conductive fluid
journal, January 2002


Rapid Prototyping of Micropatterned Substrates Using Conventional Laser Printers
journal, July 2002


MEMS: Some Self-Assembly Required
journal, January 2002