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. 13, 2008
Filed:
Apr. 22, 2003
Siebe Tjerk DE Zwart, Eindhoven, NL;
Peter Alexander Duine, Eindhoven, NL;
Antonius Hendricus Maria Holtslag, Eindhoven, NL;
Gerrit Oversluizen, Eindhoven, NL;
Siebe Tjerk De Zwart, Eindhoven, NL;
Peter Alexander Duine, Eindhoven, NL;
Antonius Hendricus Maria Holtslag, Eindhoven, NL;
Gerrit Oversluizen, Eindhoven, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
The display panel () comprises a light guide (), a second plate () and a movable element () between both plates for locally decoupling light out of the light guide (). Voltages, applied to electrodes (resp.), associated with the light guide (), the second plate () and the movable element (), locally bring the movable element () into 5 contact with the light guide plate () or the second plate (). If, between the light guide () and the first electrodes () a layer () is present with a second refractive index being smaller than the first refractive index of the light guide (), and the light guide () is positioned between the first electrodes () and the movable element (), absorption of the light transported through the light guide plate () is reduced, providing a display panel () with 10 improved power efficiency.