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:
Jan. 07, 2014
Filed:
Sep. 22, 2006
Andrei Cernasov, Ringwood, NJ (US);
Andrei Cernasov, Ringwood, NJ (US);
Honeywell International Inc., Morristown, NJ (US);
Abstract
A device and method for displaying grey levels on electronic paper is provided. According to various embodiments, a system for electronic paper can include an electret substrate embedded with at least one first capsule containing a first plurality of charged pigment particles and at least one second capsule containing a second plurality of charged pigment particles. The system can further include a first electrode interfacing with one side of the electret substrate and a second electrode interfacing with a second side of the electret substrate. The first plurality of charged pigment particles can move in the direction of one of the first and second electrodes having a polarity that is opposite to that of the first plurality of the charged pigment particles in response to a voltage applied to the first and second electrodes that is greater than a first threshold. The second plurality of charged pigment particles can move in the direction of one of the first and second electrodes having a polarity that is opposite to that of the second plurality of the charged pigment particles in response to a voltage applied to the first and second electrodes that is greater than a second threshold, the second threshold differing from the first threshold.