Method for fabrication of electrochromic device and the same fabricated by the method
First Claim
1. A method for making an electrochromic device, said device comprising a first and a second substrate and an electrode formed on a major surface of each of said first and second substrates, said device further comprising an electrochromic substance layer and a gel-like electrolyte layer situated between said electrodes of said first and second substrates, said method comprising:
- (1) forming one outer bank and at least one inner bank onto one of said substrates, said banks constituting an external frame for said substrate, using a sealing material disposed at the peripheral position of said first substrate or said second substrate, on the electrode-equipped surface thereof, wherein said outer bank comprises an uncured material and said inner bank comprises a cured material, and said banks are spaced apart;
(2) placing a gel-like electrolyte solution on the electrode-equipped surface of said first substrate;
(3) joining said second substrate with said first substrate such that the electrode-equipped surfaces of said first substrate and said second substrate are facing each other; and
(4) contact bonding said first substrate with said second substrate.
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Accused Products
Abstract
A method for fabrication of an electrochromic device having perfect tight closure of the cell, wherein two or more banks constituting an external frame for the substrates are formed with use of a sealing material at the peripheral positions on the surface of the first or second substrate where the electrode has been formed; then a gel-like electrolytic solution is placed on the surface of the first substrate; thereafter the second substrate is disposed with the surface side thereof where the electrode has been formed being opposed to the surface side of the first substrate where the electrode has been formed; and finally both first and second substrates are laid one on the other to be contact-bonded, and wherein the two or more banks are composed of one or more cured inner bank and an uncured outer bank; when the uncured outer bank is in the two-stage structure having a height taller than that of the inner bank, and is of such two-stage structure composed of a cured bank having a height shorter than that of the inner bank and an uncured bank laminated on the cured bank, such inner bank is provided one or more in number; and when the uncured outer bank is in a single stage structure, the inner bank is provided two or more in number with a space interval being provided between them, both first and second substrates being joined together by the contact-bonding.
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Citations
34 Claims
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1. A method for making an electrochromic device, said device comprising a first and a second substrate and an electrode formed on a major surface of each of said first and second substrates, said device further comprising an electrochromic substance layer and a gel-like electrolyte layer situated between said electrodes of said first and second substrates, said method comprising:
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(1) forming one outer bank and at least one inner bank onto one of said substrates, said banks constituting an external frame for said substrate, using a sealing material disposed at the peripheral position of said first substrate or said second substrate, on the electrode-equipped surface thereof, wherein said outer bank comprises an uncured material and said inner bank comprises a cured material, and said banks are spaced apart; (2) placing a gel-like electrolyte solution on the electrode-equipped surface of said first substrate; (3) joining said second substrate with said first substrate such that the electrode-equipped surfaces of said first substrate and said second substrate are facing each other; and (4) contact bonding said first substrate with said second substrate. - View Dependent Claims (3, 4, 6, 8, 10, 12, 14, 17, 19, 21, 32)
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2. A method for making an electrochromic device, said device comprising a first and a second substrate and an electrode formed on a major surface of each of said first and second substrates, said device further comprising an electrochromic substance layer and a gel-like electrolyte layer situated between said electrodes of said first and second substrates, said method comprising:
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(1) forming one outer bank and at least one inner bank onto one of said substrates, said banks constituting an external frame for said substrate, using a sealing material disposed at the peripheral position of said first substrate or said second substrate, on the electrode-equipped surface thereof, wherein said outer bank comprises an uncured material and said inner bank comprises a cured material, and said outer bank is a two-stage structure having a greater height than the height of said inner bank, said two-stage structure comprising a first cured bank having a height which is shorter than the height of said inner bank, said first cured bank having laminated thereon an uncured bank; (2) placing a gel-like electrolyte solution on the electrode-equipped surface of said first substrate; (3) joining said second substrate with said first substrate such that the electrode-equipped surfaces of said first substrate and said second substrate are facing each other; and (4) contact bonding said first substrate with said second substrate. - View Dependent Claims (5, 7, 9, 11, 13, 15, 16, 18, 20, 33)
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- 22. An electrochromic device comprising a first substrate and a second substrate, each having an electrode formed thereon, said device further comprising an electrochromic substance and an electrolyte held between said first substrate and said second substrate, wherein the surfaces of said first substrate and said second substrate equipped with said electrodes face inward of said device, said electrochromic device comprising at least one outer bank and at least two inner banks formed of a sealing material disposed on the peripheral position of the electrode-equipped surfaces of said first substrate and said second substrate, wherein said at least two inner banks do not bond said first and second substrate, and said at least one outer bank bonds said first substrate and said second substrate.
Specification