Electrophoretic device, display unit, and electronic unit

A display unit comprising:

• an electrophoretic device between a pair of base substances, at least one of which has light transmission characteristics,
• wherein the electrophoretic device includes
• an electrophoretic particle,
• a porous layer formed of a fibrous structure containing a non-electrophoretic particle having optical reflection characteristics different from those of the electrophoretic particle, and
• a dividing wall adjacent to an opposite surface of the porous layer from a display surface,
• wherein the electrophoretic particle, the porous layer, and the dividing wall are in an insulating liquid, and
• volume resistivity of the fibrous structure is larger than volume resistivity of the insulating liquid, and volume resistivity of the dividing wall is larger than the volume resistivity of the insulating liquid.

An electronic unit comprising:

• a display unit having an electrophoretic device between a pair of base substances, at least one of which has light transmission characteristics,
• wherein the electrophoretic device includes
• an electrophoretic particle,
• a porous layer formed of a fibrous structure containing a non-electrophoretic particle having optical reflection characteristics different from those of the electrophoretic particle, and
• a dividing wall adjacent to an opposite surface of the porous layer from a display surface,
• wherein the electrophoretic particle, the porous layer, and the dividing wall are in an insulating liquid, and
• volume resistivity of the fibrous structure is larger than volume resistivity of the insulating liquid, and volume resistivity of the dividing wall is larger than the volume resistivity of the insulating liquid.