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. 05, 2008
Filed:
Nov. 23, 2005
Kevin George Harding, Niskayuna, NY (US);
Shu-guo Tang, Blue Bell, PA (US);
Kevin George Harding, Niskayuna, NY (US);
Shu-Guo Tang, Blue Bell, PA (US);
General Electric Company, Schenectady, NY (US);
Abstract
Disclosed herein is a method comprising capturing an image of a grating formed on a surface of a brightness enhancing display film; measuring a displacement Δd of a fringe from the image of the grating; and determining a slope of a deviation from flatness of the brightness enhancing display film from the displacement Δd by using the equation (I) wherein y represents a distance along the brightness enhancing display film that represents a location of the deviation from flatness; θis a light box angle; θis the slope of the deviation from flatness in the brightness enhancing display film; and θis a camera angle.