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:
Dec. 14, 2004
Filed:
Jan. 08, 2003
Ching-Shon Ho, Palo Alto, CA (US);
Jerry Chung, Mountain View, CA (US);
Paul Gendler, San Jose, CA (US);
Rong-Chang Liang, Cupertino, CA (US);
SiPix Imaging Inc., Milpitas, CA (US);
Abstract
The present invention is directed to a display device which includes an array of sealed microcups containing particles of a designated electric and magnetic characteristic suspended in a solvent wherein a surface of a plurality of the sealed microcups constituting a transparent surface. The display device further includes an electromagnetic image writing/drawing pen for manually applying an electromagnetic field on the particles of the designated electric and magnetic characteristic in the microcups to form an image viewable from the transparent surface. More particularly, the particles of the designated electric and magnetic characteristic are charged particles and the writing and drawing pen is an electrical writing/drawing pen.