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:
Sep. 05, 2006
Filed:
Oct. 17, 2002
Boudewijn Michael Esser, Eindhoven, NL;
Boudewijn Michael Esser, Eindhoven, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
An optical element for a display unit comprising a first rigid, transparent plate () and at least one flexible optical foil (), wherein the foil () is held to the plate () by means of an underpressure created, for example, by a suction device (). The optical element according to the invention overcomes the problem of wrinkling foils by creating an underpressure that presses the foil () against the rigid plate (), thereby preventing the foil from wrinkling. According to an embodiment of the invention, the optical element further comprises a second rigid, transparent plate (), said optical foil is arranged between the first and second plates, and the plates () are held together by means of underpressure.