The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 28, 1996
Filed:
Jul. 11, 1994
Martin B Wolk, Woodbury, MN (US);
Thomas A Isberg, Apple Valley, MN (US);
Kenneth L Hanzalik, Arden Hills, MN (US);
Jeffrey C Chang, North Oaks, MN (US);
Richard E Bills, Woodbury, MN (US);
William V Dower, St. Paul, MN (US);
Terrance P Smith, Woodbury, MN (US);
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Abstract
Color filter elements are prepared by the laser induced thermal transfer of colorant from a color donor to a transparent, non-birefringent substrate such as glass or polymeric film. Transparent pigments which are less prone to migration, more thermally stable, and considerably more lightfast than dyes can be used to prepare the color filter elements of this invention. Color filter elements are useful for elements in color displays such as liquid crystal display devices.