Electrochromic device
First Claim
1. An electrochromic device comprising:
- transparent substrates;
an electrochromic layer provided between said transparent substrates, said electrochromic layer containing no ultraviolet radiation stabilizing agent or containing less than 1 weight % of ultraviolet radiation stabilizing agent; and
a transparent photocatalytic layer performing a photocatalytic reaction formed on the front surface of a front side substrate of said transparent substrates.
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Accused Products
Abstract
An electrochromic layer consisting of an electrochromic material film and an electrolyte is provided between transparent electrode films of two glass substrates. An ultraviolet radiation stabilizing agent is not added to the electrolyte. A photocatalytic layer and a porous inorganic hydrophilic layer are formed on the front surface side of the front side glass substrate to make the surface of the device hydrophilic. The photocatalytic layer is excited by irradiation of ultraviolet radiation and decomposes dirt deposited on the surface of the porous inorganic hydrophilic layer, thereby maintaining the hydrophilic property. Since the photocatalytic layer absorbs ultraviolet radiation, occurrence of a photochromism in the electrochromic material film can be prevented.
78 Citations
9 Claims
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1. An electrochromic device comprising:
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transparent substrates;
an electrochromic layer provided between said transparent substrates, said electrochromic layer containing no ultraviolet radiation stabilizing agent or containing less than 1 weight % of ultraviolet radiation stabilizing agent; and
a transparent photocatalytic layer performing a photocatalytic reaction formed on the front surface of a front side substrate of said transparent substrates. - View Dependent Claims (2, 5, 6, 7, 8, 9)
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3. An electrochromic device comprising:
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transparent substrates;
an electrochromic layer provided between said transparent substrates, said electrochromic layer containing no ultraviolet radiation stabilizing agent or containing less than 1 weight % of ultraviolet radiation stabilizing agent;
a transparent photocatalytic layer performing a photocatalytic reaction formed on the front surface of a front side substrate of said transparent substrates; and
a transparent porous inorganic hydrophilic layer formed on the front surface side of said transparent photocatalytic layer. - View Dependent Claims (4)
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Specification