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:
Oct. 01, 2013
Filed:
May. 12, 2009
Harunobu Komatsu, Matsumoto, JP;
Hitoshi Yamamoto, Chino, JP;
Akira Matsumoto, Chino, JP;
Mitsuo Kushino, Kawabe-gun, JP;
Tomoyuki Kuwamoto, Narashi, JP;
Teruki Matsushita, Suita, JP;
Harunobu Komatsu, Matsumoto, JP;
Hitoshi Yamamoto, Chino, JP;
Akira Matsumoto, Chino, JP;
Mitsuo Kushino, Kawabe-gun, JP;
Tomoyuki Kuwamoto, Narashi, JP;
Teruki Matsushita, Suita, JP;
Seiko Epson Corporation, Tokyo, JP;
Nippon Shokubai Co., Ltd., Osaka, JP;
Abstract
An electrophoretic display sheet comprising a display layer, a first electrode, and second electrodes. The display layer has a plurality of reservoir portions filled with a dispersion liquid containing particles. Each of the plurality of reservoir portions has predetermined positions. When an electric field having a direction is generated by applying a voltage to between the first electrode and the second electrodes, the particles are locally gathered to the predetermined positions of each of the plurality of reservoir portions so as to make rows of the particles along the direction of the electric field in the dispersion liquid. The electrophoretic display sheet is capable of exhibiting both superior responsiveness (responsibility) and superior color display performance with high contrast in changing a display color.