Electrophoretic display device
AssigneeSeiko Epson Corporation
InventorsTsuyoshi Obikawa, Makoto Katase, Satoshi Kinoshita, Masamitsu Uehara
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Abstract
A dispersion medium, for dispersing electrophoretic particles in an electrophoretic display device, contains an organic compound having two or more rings in its structural formula, where the organic compound comprises at least about 30% by weight of the dispersion medium. The thus constituted dispersion medium improves the reliability and response of the electrophoretic device. The organic compound comprises one or more of the materials defined by the structural formulae (1) to (4), wherein each of A1 to A6, C1, and C2 are ring compounds.
Claims6
An electrophoretic display device, comprising:
- an electrophoretic suspension containing electrophoretic particles dispersed in a dispersion medium;
- wherein the dispersion medium includes at least one organic compound having a structural formula containing at least two rings.
A dispersion medium in which electrophoretic particles are dispersed,
- wherein the dispersion medium includes at least one organic compound having a structural formula containing at least two rings.
Dependencies are inferred from the claim text.