US3746426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid crystal cell and method for its manufacture
Assignee: Individual
•
Filing: 1972-02-10
•
Granted: 1973-07-17
•
Expires: 1992-02-10
Abstract
Abstract A liquid crystal cell and method for its manufacture. The cell has a strip of microglass paper impregnated with liquid crystal material sandwiched between two substrates, each of which has conductive material plated thereon. If coincident selection of a point in the cell is desired, the conductive material on the substrates are in the form of parallel strips with the strip on one substrate being perpendicular to the strips on the other substrate and a layer of non-linear resistance material is deposited over the conductive material on one of the substrates.
Inventors
- 👤 J Masi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:22
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/136; G02F1/1362; G02F1/136277; G02F1/1333; G02F1/1334; G02F1/1339
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
21 words
A cell of the type described in claim 1 wherein said non-linear resistance material is silicon carbide in a plastic binder.
Claim 2
Dependent Claim
21 words
A cell of the type described in claim 1 wherein at least one of the parallel electrically conducting strips is transparent.
Claim 3
Dependent Claim
18 words
A cell of the type described in claim 1 wherein said microglass paper is dyed a dark color.
Claim 4
Dependent Claim
30 words
A cell of the type described in claim 1 wherein the signals applied to said first and second strips are of like magnitude, said magnitude being substantially equal to Vc.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-16 | 1977-01-15 | 1977-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-16 | 1981-01-15 | 1981-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-16 | 1985-01-15 | 1985-07-17 | $7700.00 | Window Closed / Lapsed |