DISPLAY DEVICE

摘要

There is provided a display device having an electrochromic element placed in the display device. The electrochromic element has: a light transmittance of 70% or more and a light reflectance of 20% or less at a central wavelength of a visible spectrum when in a transparent state; and a light reflectance of 65% or more at the central wavelength of the visible spectrum when in a mirror state. By this, the display device is not only highly effective in terms of light-shielding, heat blocking, screening, etc., but is also switchable between a transmissive type and a reflective type.

主权项

1. A display device that switches from transparent state to mirror state or switches from mirror state to transparent state,
the display device comprising: an electrochromic element containing a silver compound; a mediator including a copper compound; and a solvent having non-aqueous solvents including dimethyl sulfoxide and acetonitrile, wherein a ratio of the acetonitrile to the solvent is 20% to 50%, and 11 g of the solvent contains 0.037 mM to 0.048 mM of copper in the copper compound.