Electrochromic elements and methods of manufacturing and driving the same
First Claim
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1. An electrochromic element comprising:
- a pair of electrochromic bases, each comprising a substrate, an electrode layer disposed on said substrate, and a color-forming layer dispersed on said electrode layer, said electrochromic bases being superposed such that their respective color-forming layers face each other,an ultraviolet-setting solid electrolyte disposed between said color-forming layers of said electrochromic bases, said solid electrolyte being a mixture including an ultraviolet-setting polymeric compound, an organic solvent and an ion conducting salt.
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Abstract
An electrochromic element including a pair of electrochromic bases is provided. Each electrochromic base is defined by a substrate, an electrode layer disposed on the substrate, and a color-forming layer disposed on the electrode layer. The electrochromic bases are superposed such that their respective color-forming layers face each other. A solid electrolyte of ultraviolet-setting type is disposed between the color-forming layers of the electrochromic bases. The method of manufacturing the electrochromic element and the method of driving the same are also disclosed.
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Citations
11 Claims
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1. An electrochromic element comprising:
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a pair of electrochromic bases, each comprising a substrate, an electrode layer disposed on said substrate, and a color-forming layer dispersed on said electrode layer, said electrochromic bases being superposed such that their respective color-forming layers face each other, an ultraviolet-setting solid electrolyte disposed between said color-forming layers of said electrochromic bases, said solid electrolyte being a mixture including an ultraviolet-setting polymeric compound, an organic solvent and an ion conducting salt. - View Dependent Claims (2, 3, 4)
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5. A method of manufacturing an electrochromic element comprising the steps of:
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preparing a pair of electrochromic bases, each comprising a substrate, an electrode layer disposed on said substrate, and a color-forming layer disposed on said electrode layer, disposing said electrochromic bases so that said color-forming layers face one another, disposing and maintaining a liquid electrolyte of ultraviolet-setting type between said color-forming layers of said electrochromic bases, said liquid electrolyte including an ultraviolet-setting polymeric compound, an organic solvent and a salt having an ion conductivity, hardening said liquid electrolyte of ultraviolet-setting type by irradiation with ultraviolet rays, and sealing the extreme portions of said electrochromic bases.
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6. A method of driving an electrochromic element comprising a pair of electrochromic bases, each comprising a substrate, an electrode layer disposed on said substrate, and a color-forming layer disposed on said electrode layer, said electrochromic bases being superposed such that their respective color-forming layers face each other, and
a solid electrolyte of ultraviolet-setting type disposed between said color-forming layers of said electrochromic bases said solid electrolyte being a mixture including an ultraviolet-setting polymeric compound, an organic solvent and an ion conducting salt, the method comprising the step of: applying one of a gradually increased coloring voltage and a gradually decreased discoloring voltage to said electrochromic element so as to keep one of a coloring current and a discoloring current flowing into said electrochromic element within a predetermined amount. - View Dependent Claims (7, 8, 9)
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10. A method of driving an electrochromic element comprising a pair of electrochromic bases, each comprising a substrate, an electrode layer disposed on said substrate, and a color-forming layer disposed on said electrode layer;
- said electrochromic bases being superposed such that their respective color-forming layers face each other, and
a solid electrolyte of ultraviolet-setting type disposed between said color-forming layers of said electrochromic bases said solid electrolyte being a mixture including an ultraviolet-setting polymeric compound, an organic solvent and an ion conducting salt, the method comprising the step of; applying an approximately constant discoloring voltage to said electrochromic element while a discoloring current flowing into said electrochromic element is kept within a predetermined amount. - View Dependent Claims (11)
- said electrochromic bases being superposed such that their respective color-forming layers face each other, and
Specification