US4188095A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid type display cells and method of manufacturing the same
Assignee: Citizen Watch Co Ltd
•
Filing: 1978-09-29
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Granted: 1980-02-12
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Expires: 1998-09-29
Abstract
Abstract In a liquid type display cell wherein a liquid crystal or an electrochromic substance is poured into the space between a pair of substrates through a pouring port of a spacer ring, the pouring port is sealed by an inorganic substance such as solder. Where the cell is provided with display electrodes and electrochromic layers on the electrodes, the display electrodes and the electrochromic layers are etched in one step to have the same pattern.
Inventors
- 👤 Katsuo Nishimura
- 👤 Takanori Nanya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:16
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/15; G02F1/153; G02F1/1533; G02F1/13; G02F1/133; G02F1/1333; G02F1/1341; G02F1/161; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
91 words
A method of manufacturing a liquid display cell of the type including electrode layers on a substrate and electrochromic layers on said electrode layers, said electrode layers and said electrochromic layers being arrange in a predetermined pattern, said method comprising the steps of forming an electrode layer on said substrate, forming an electrochromic layer on said electrode layer, and photoetching in one step said electrode layer and said electrochromic layer thereby forming a plurality of electrode layers and a plurality of electrochromic layers having the same pattern as said electrode layers.
Claim 2
Independent Claim
91 words
A method of manufacturing a liquid display cell of the type including electrode layers on a substrate and electrochromic layers on said electrode layers, said electrode layers and said electrochromic layers being arrange in a predetermined pattern, said method comprising the steps of forming an electrode layer on said substrate, forming an electrochromic layer on said electrode layer, and photoetching in one step said electrode layer and said electrochromic layer thereby forming a plurality of electrode layers and a plurality of electrochromic layers having the same pattern as said electrode layers.
Claim 3
Dependent Claim
59 words
The method of claim 1 wherein said photoetching includes the steps of: applying a spinner liquid to said electrode layer and said electrochromic layer; exposing the applied spinner liquid; developing the exposed, applied spinner liquid; etching, in one step, the layers of said transparent electrode and said electrochromic substance; and applying a solvent to remove the remaining spinner layer.
Claim 4
Dependent Claim
25 words
The method of claim 1 wherein the step of forming said electrode layer is performed by vapor depositing In 2 O 3 on said substrate.
Claim 5
Dependent Claim
23 words
The method of claim 1 wherein the step of forming said electrode layer is performed by vapor depositing SnO 2 on said substrate.
Claim 6
Dependent Claim
23 words
The method of claim 3 or 4 wherein said electrochromic layer is formed by vapor depositing an electrochromic substance on said electrode layer.
Claim 7
Dependent Claim
29 words
A liquid electrochromic display cell of the type including electrode layers formed on a substrate and electrochromic layers on said electrode layers manufactured by the method of claim 1.
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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) | 1983-02-11 | 1983-08-13 | 1984-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-02-11 | 1987-08-13 | 1988-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-02-11 | 1991-08-13 | 1992-02-12 | $7700.00 | Window Closed / Lapsed |