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:
Feb. 23, 2010
Filed:
Dec. 14, 2006
Jerzy Wielgus, Mount Prospect, IL (US);
Daniel R. Gamota, Palatine, IL (US);
John B. Szczech, Schaumburg, IL (US);
Jie Zhang, Buffalo Grove, IL (US);
Jerzy Wielgus, Mount Prospect, IL (US);
Daniel R. Gamota, Palatine, IL (US);
John B. Szczech, Schaumburg, IL (US);
Jie Zhang, Buffalo Grove, IL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A protective photochromic barrier film for a light-sensitive printed electronic substrate. Light-sensitive semiconductor devices on a dielectric substrate are electrically connected by conductors. A barrier layer containing photochromic dyes covers some or all of the light-sensitive semiconductor devices. Upon exposure to visible, infrared, or ultraviolet light, the photochromic dyes change chemical structure and decrease the amount of visible or non-visible light that can impinge upon the light-sensitive electronic devices. Upon removal of the visible or non-visible light, the photochromic dyes either revert to their original structure or maintain their altered state.