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. 10, 2015
Filed:
Dec. 27, 2011
Shunsuke Mori, Hitachi, JP;
Yoshiro Mikami, Hitachiota, JP;
Shunsuke Mori, Hitachi, JP;
Yoshiro Mikami, Hitachiota, JP;
Hitachi Chemical Co., Ltd., Tokyo, JP;
Abstract
Disclosed is a suspended particle device having a higher response speed of particles upon shutdown of the device. The suspended particle device includes a first substrate; a first electrode arranged on a surface of the first substrate; a second substrate; a second electrode arranged on a surface of the second substrate; and a suspension arranged between the first substrate and the second substrate, in which the suspension includes particles and a disperse medium, the particles are dispersed in the disperse medium, an orientation of the particles is controlled by an alternate-current voltage to be applied between the first electrode and the second electrode, and 'a' which represents a frequency of an alternate-current voltage in a driving period is greater than 'b' which represents a frequency of an alternate-current voltage in a shutdown period.