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INNOVATIVE COLOR FILTER MATERIALS

Award Information
Agency: Department of Defense
Branch: Defense Advanced Research Projects Agency
Contract: N/A
Agency Tracking Number: 18319
Amount: $332,925.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: N/A
Solicitation Number: N/A
Timeline
Solicitation Year: N/A
Award Year: 1994
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
Small Business Information
329 Main Avenue
Stirling, NJ 07980
United States
DUNS: N/A
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 John Brown
 (908) 647-6890
Business Contact
Phone: () -
Research Institution
N/A
Abstract

THE COLOR FILTERS CURRENTLY USED TO CONVERT BLACK-AND-WHITE LCD DISPLAYS TO COLOR DISPLAYS SEVERELY LIMIT THE BRIGHTNESS OF THE DISPLAYS BECAUSE AVAILABLE COLOR FILTER MATERIALS (DYES AND GLASSES) ARE INHERRENTLY RATHER BROADBAND. CONSEQUENTLY, IF THEY ARE DENSE ENOUGH TO LIMIT THE TRANSMITTED LIGHT TO A REASONABLY NARROW BAND FOR COLOR PURITY, THEY ALSO CUT DOWN ON THE BRIGHTNESS OF THE TRANSMITTED LIGHT. WHAT IS NEEDED IS A FAMILY OF DYES WITH STEEP CUTOFFS AT THE EDGES OF THEIR PASSBANDS; IN OTHER WORDS, UNUSUALLY NARROW PASSBANDS. FEW, IF ANY, DYES OF COMMERCE OFFER NARROW PASSBANDS; BUT THE PORPHYRIN AND PHTHALOCYANINE DYES OFFER UNUSUALLY NARROW ABSORPTION BANDS, AND THE ABSORPTIONS OF A SERIES OF NARROWBAND ABSORBERS CAN BE "STACKED" TO FIVE A FILTER WITH A BRIGHT, STEEP-SIDED PASSBAND ANYWHERE IN THE SPECTRUM. SOME PORPHYRIN AND PHTHALOCYANINE DYES ARE AVAILABLE, BUT NOT ENOUGH OF THEM TO FILL THE SPECTRUM. THIS PROPOSAL OFFERS TO DEVELOP SYNTHESES FOR ADDITIONAL DYES WITH NARROW ABSORPTION BANDS SPACED THROUGHOUT THE VISIBLE SPECTRUM AND TO DEMONSTRATE THE ENHANCED DISPLAY BRIGHTNESS THAT THEY CAN PROVIDE. ANTICIPATED BENEFITS: THESE NEW DYES WILL ENABLE THE MANUFACTURE OF COLOR FILTERS WITH HIGH LIGHT TRANSMISSION AND HIGH COLOR PURITY FOR USE IN BOTH MILITARY AND CIVILIAN LCD DISPLAYS. THE TECHNOLOGY CAN ALSO BE USED IN THE MANUFACTURE OF IMPROVED PHOTOGRAPHIC COLOR FILMS AND IN THE MANUFACTURE OF GREATLY IMPROVED INEXPENSIVE SUNGLASSES.

* Information listed above is at the time of submission. *

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