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:
Jun. 07, 2011
Filed:
Oct. 22, 2009
Takeo Kawase, Suwa, JP;
Harunobu Komatsu, Matsumoto, JP;
Hitoshi Yamamoto, Chino, JP;
Akira Matsumoto, Chino, JP;
Mitsuo Kushino, Kawabe-gun, JP;
Tomoyuki Kuwamoto, Nara, JP;
Teruki Matsushita, Suita, JP;
Hironobu Hashimoto, Kawanishi, JP;
Takeo Kawase, Suwa, JP;
Harunobu Komatsu, Matsumoto, JP;
Hitoshi Yamamoto, Chino, JP;
Akira Matsumoto, Chino, JP;
Mitsuo Kushino, Kawabe-gun, JP;
Tomoyuki Kuwamoto, Nara, JP;
Teruki Matsushita, Suita, JP;
Hironobu Hashimoto, Kawanishi, JP;
Seiko Epson Corporation, Tokyo, JP;
Nippon Shokubai Co., Ltd., Osaka-shi, JP;
Abstract
A display device comprises a microcapsule-containing layer including a plurality of microcapsules. A variation of the outer diameters of the microcapsules can be defined by an average value and a CV value. Each of the microcapsules is comprised of: a shell having an inner surface; contact particles electrically charged and provided within the shell in an contact state that the contact particles are in contact with the inner surface of the shell; and a scattering body for scattering light; or a colored particles having a different hue from the hue of the contact particles. The display device further comprises a pair of electrodes that when an electrical voltage is applied to between the pair of electrodes, electrical fields to act on the contact particles are generated. The average value of the outer diameters of the microcapsules is in the range of 20 to 60 μm, and the CV value of the outer diameters of the microcapsules is 20% or less. In a case where the electrical voltage is applied to between the pair of electrodes, the contact particles are moved along the inner surface of the shell while maintaining the contact state with the inner surface of the shell.