A display device includes a first substrate, a first electrode provided on the first substrate, an insulation layer provided on the first electrode, a second electrode provided on the insulation layer, a cavity partition surrounding the second electrode with an interval therebetween, a second substrate provided on the cavity partition, and a droplet of a coloring liquid sealed in the cavity partition. In the display device, a third electrode for promoting restoration of the droplet of a coloring liquid to a spherical shape is provided. In the display device, the insulation layer includes a insulator film and a low surface energy film; the insulator film assumes a specific inductive capacity of three or more and a thickness of 10 nm to 100 nm; and the low surface energy film assumes a thickness of 100 nm or less.

 
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> Lens unit and image taking apparatus

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