Patent ID: 9341839
Filing Date: 2016-05-17
CPC Classification: C09B,G02B

Claim Text:
1. An electrowetting display device, comprising a display member having: a first substrate, at least one surface of which is at least partly electroconductive; a second substrate disposed so as to face the at least partly electroconductive surface of the first substrate; a hydrophobic insulation film disposed on at least a part of the at least partly electroconductive surface of the first substrate; a non-electroconductive oil that is provided movably on the hydrophobic insulation film, between the hydrophobic insulation film and the second substrate, and that comprises a nonpolar solvent and a porphyrin dye represented by the following Formula (1); and an electroconductive hydrophilic liquid provided between the hydrophobic insulation film and the second substrate so as to contact the oil, wherein an image is displayed by changing the shape of an interface between the oil and the hydrophilic liquid by applying a voltage between the hydrophilic liquid and the at least partly electroconductive surface of the first substrate: wherein, in Formula (1), each of A