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:
Mar. 17, 2015
Filed:
Jul. 30, 2007
Mark Thomas Johnson, Eindhoven, NL;
Franciscus Paulus Maria Budzelaar, Eindhoven, NL;
Murray Fulton Gillies, Eindhoven, NL;
Mark Thomas Johnson, Eindhoven, NL;
Franciscus Paulus Maria Budzelaar, Eindhoven, NL;
Murray Fulton Gillies, Eindhoven, NL;
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
A display device and a method for driving the display device is disclosed. The display device comprises drive circuitry () and a plurality of pixels (PIX, PIX, PIX, PIX, PIX, PIX) having movable charged particles (). The drive circuitry is configured to apply control signals to the pixels to move the charged particles between first () and second () regions of each pixel in order to alter the optical appearance of each pixel. The method for each pixel comprises a pre-addressing stage (PRA) of moving the charged particles towards the boundary () between the first and second regions, and then an addressing stage (ADD) of moving the particles to one side or the other side of the boundary, in dependence on the desired optical appearance of the pixel.