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. 24, 2015
Filed:
Apr. 09, 2012
Michiaki Sakamoto, Kanagawa, JP;
Koji Shigemura, Kanagawa, JP;
Setsuo Kaneko, Kanagawa, JP;
NLT Technologies, Ltd., Kanagawa, JP;
Abstract
An image display device is provided which suppresses discomfort 'flickering' in a process of renewing a screen to realize multiple gray level displaying including an intermediate color. Electrophoretic particles are made up of n-kinds of charged particles C, . . . , Ck, . . . , Cn having colors different from one another and threshold voltages to initiate an electrophoresis. Each of charged particles C, . . . , Ck, . . . , Cn satisfies a relationship characteristic of threshold value voltage of charged particles> . . . >threshold value voltage of charged particle Ck> . . . >threshold value voltage of charged particle Cn. A voltage applying unit, at time of renewing a screen, renews a screen to a next screen having a desired density by a transition of a relative color density of each charged particle to a relative color density of a corresponding intermediate state in order of charged particle C> . . . >Ck, . . . , Cn for a voltage driving waveform of each charged particle.