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:
Nov. 04, 2014
Filed:
Aug. 10, 2010
Takashi Miyashita, Ome, JP;
Takashi Miyashita, Ome, JP;
Casio Computer Co., Ltd., Tokyo, JP;
Abstract
An electrophoretic display apparatus includes a display unit, a signal voltage application circuit, and a common voltage application circuit. The display unit includes a first substrate having a first electrode formed thereon, a second substrate facing the first substrate and having a second electrode formed thereon, and a partition wall. A pixel space surrounded by the partition wall, the first substrate, and the second substrate contains dispersant suspending positively-charged particles and negatively-charged particles. The signal voltage application circuit applies a signal voltage to the first electrode. The signal voltage includes a write signal voltage to display an image on the display unit, and a post-write signal voltage which gradually changes from the write signal voltage to a hold signal voltage, the hold signal voltage maintaining a display state of the display unit. The common voltage application circuit applies a common voltage to the second electrode.