Invention Grant
- Patent Title: Electrophoretic material, electrophoresis display device, and electronic apparatus
- Patent Title (中): 电泳材料,电泳显示装置和电子设备
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Application No.: US13937653Application Date: 2013-07-09
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Publication No.: US08947763B2Publication Date: 2015-02-03
- Inventor: Yasushi Yamazaki
- Applicant: Seiko Epson Corporation
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Priority: JP2012-157224 20120713
- Main IPC: G02B26/00
- IPC: G02B26/00 ; G09G3/34 ; G02F1/00 ; G02F1/167

Abstract:
In an electrophoretic material, first particles which are charged with a first polarity and second particles which are charged with a second polarity are dispersed in a solvent. A volume, which is obtained by dividing a volume of the solvent by a total number of particles, is called free volume, and a radius of a spherical space, which is occupied by sum of an average volume of the particles and the free volume, is called a free volume radius. A first particle average radius is greater than a second particle average radius. A difference between the free volume radius and the first particle average radius is greater than the second particle average radius. An electric charge amount of the second particles is greater than an electric charge amount of the first particles.
Public/Granted literature
- US20140016180A1 ELECTROPHORETIC MATERIAL, ELECTROPHORESIS DISPLAY DEVICE, AND ELECTRONIC APPARATUS Public/Granted day:2014-01-16
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