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Browse Prior Art Database

IMAGING BY REVERSIBLE CONVERSION FROM DYE TO PIGMENT

IP.com Disclosure Number: IPCOM000023495D
Original Publication Date: 1977-Dec-31
Included in the Prior Art Database: 2004-Mar-31

Publishing Venue

Xerox Disclosure Journal

Abstract

An imaging process and a display device which comprises a film coating or cast film of a polymer and a colorant is disclosed. The colorant can exist either as a dye or pigment when the polymer is in the solid states The coating will form a more opaque body when the colorant is a pigment; whereas when the colorant is in the dye state the body is substantially trans-parent. Imaging is achieved in a body of initial opaque material by converting the body to a transparent state in pattern configuration. If the initial body is transparent, imaging is achieved by causing the body to be opaque, that is, by causing the colorant to be in the pigment form. The color-