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. 18, 2014
Filed:
Jun. 10, 2009
Gerrit Oversluizen, Eindhoven, NL;
Sander Jurgen Roosendaal, Brno, NL;
Thomas Caspar Kraan, Eindhoven, NL;
Gerard Cnossen, Drachten, NL;
Raymond Jean Louis Van Kooyk, Eindhoven, NL;
Dirk Kornelis Gerhardus DE Boer, Eindhoven, NL;
Alwin Rogier Martijn Verschueren, Eindhoven, NL;
Gerrit Oversluizen, Eindhoven, NL;
Sander Jurgen Roosendaal, Brno, NL;
Thomas Caspar Kraan, Eindhoven, NL;
Gerard Cnossen, Drachten, NL;
Raymond Jean Louis Van Kooyk, Eindhoven, NL;
Dirk Kornelis Gerhardus De Boer, Eindhoven, NL;
Alwin Rogier Martijn Verschueren, Eindhoven, NL;
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
An appearance-modifying device (), for modifying the visual appearance of a surface covered thereby, comprising: first () and second () oppositely arranged optically transparent substrates; a spacer structure () spacing apart the first () and second () substrates in such a way that a space between the first () and second () substrates is divided into a plurality of cells (-). The appearance-modifying device further has, in each cell (-), an optically transparent fluid () having a plurality of particles () dispersed therein, the particles being moveable in the fluid () through application of an electric field; and first () and second () electrodes arranged to simultaneously, by application of a voltage across the electrodes, control a distribution of the particles () within each of a plurality of the cells (-) from a first, dispersed state in which an appearance of the surface covered by the appearance-modifying device is determined by optical properties of the particles (), to a second state in which the particles () are concentrated adjacent to at least one of the first () and second () electrodes in such a way that the appearance-modifying device () becomes optically transparent.