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US4828369A
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Electrochromic device
Assignee: Minolta Co Ltd
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Filing: 1987-05-27
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Granted: 1989-05-09
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Expires: 2007-05-27
Abstract
Abstract An electrochromic device, comprising, a first transparent electrode, an electrochromic layer, a macromolecular solid electrolyte layer and a second electrode, each applied successively is disclosed. The electrochromic device is characterized in that the macromolecular solid electrolyte layer is a plasma polymerization film which includes a hydrocarbon compound, an alkali metal and an element having large electronegativity. An electrochromic device, comprising, a transparent electrode, an electrochromic material made from an organic material of the ion injection type, an ionic conductor layer, and a second electrode, each applied successively is disclosed. The electrochromic layer is a film which is made with a plasma polymerization process of a phthalocyanine compound under the supply of carrier gas at a low frequency between 1 kHz and 3 MHz of alternating electric field.
Inventors
- 👤 Hideo Hotomi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:33
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/15; G02F1/1514; G02F1/1523; G02F1/1525; G02F1/1516
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
52 words
An electrochromic display device, comprising: a first transparent electrode, an electrochromic layer, a macromolecular solid electrolyte layer and a second electrode, each applied successively, being characterized in that the macromolecular solid electrolyte layer is a plasma polymerization film which includes a hydrocarbon compound, an alkali metal and an element having large electronegativity.
Claim 2
Dependent Claim
52 words
An electrochromic display device, comprising: a first transparent electrode, an electrochromic layer, a macromolecular solid electrolyte layer and a second electrode, each applied successively, being characterized in that the macromolecular solid electrolyte layer is a plasma polymerization film which includes a hydrocarbon compound, an alkali metal and an element having large electronegativity.
Claim 3
Dependent Claim
25 words
An electrochromic device according to claim 1, wherein said element having large electronegativity is selected from the group consisting of fluorine, oxygen, nitrogen and chlorine.
Claim 4
Dependent Claim
24 words
An electrochromic device according to claim 1, wherein said alkali metal is selected from the group consisting of lithium, sodium, pottasium, rubydium and cesium.
Claim 5
Dependent Claim
42 words
An electrochromic device according to claim 1, wherein said macromolecular solid electrolyte layer is formed by a plasma polymerization process from materials of at least a hydrocarbon compound having an alkali metal and an organic compound having an element of large electronegativity.
Claim 6
Dependent Claim
32 words
An electrochromic device according to claim 2, wherein a material for providing the plasma polymerization film with said element of large electronegativity is an organic compound including said element of large electronegativity.
Claim 7
Dependent Claim
32 words
An electrochromic device according to claim 2, wherein a material for providing the plasma polymerization film with said element of large electronegativity is an inorganic compound including said element of large electronegativity.
Claim 8
Dependent Claim
46 words
An electrochromic device according to claim 3, wherein a material for providing the plasma polymerization film with the alkali metal is one selected from the group consisting of a metallic element, organometallic compound, metal hydride, metal azide, metal amide and alkoxide which include said alkali metal.
Claim 9
Dependent Claim
28 words
An electrochromic device according to claim 1, wherein said hydrocarbon is a compound selected from the group consisting of saturated hydrocarbons, unsaturated hydrocarbons, alicyclic hydrocarbons and aromatic hydrocarbons.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-05-08 | 1992-11-07 | 1993-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-08 | 1996-11-07 | 1997-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-08 | 2000-11-07 | 2001-05-09 | $7700.00 | Window Closed / Lapsed |