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:
Apr. 10, 2012
Filed:
Mar. 28, 2008
Johannes Bokke Feenstra, Nuenen, NL;
Roy Van Dijk, Eindhoven, NL;
Robert Hayes, Hong Kong, CN;
Samsung LCD Netherlands R&D Center B.V., Eindhoven, NL;
Abstract
The invention relates to a method of driving an electrowetting display device including a display element, the display element having an electrode for applying a voltage and providing a display state in response to a signal level of the voltage. The method comprises the following subsequent steps for maintaining a display state of the display element: (1) applying a first signal level (V) during a first period (tt) for the display state; (2) applying a second signal level (0) during a second period (t-t); and (3) applying the first signal level during a third period (t-t). The first period is longer than 1 ms and the first period plus the third period is longer than five times the second period.