US4425030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid crystal display comprising an encapsulation and a liquid crystal display cell with poly-para-xylene and a method of manufacturing the same
Assignee: Rheinmetall Air Defence AG
•
Filing: 1981-03-09
•
Granted: 1984-01-10
•
Expires: 2001-03-09
Abstract
Abstract A liquid crystal display and a method of fabricating the same are disclosed, comprising two substantially plane parallel transparent substrates or carriers, two polarizer foils applied to the outer faces or sides of the substrates and a liquid crystal material enclosed between the substrates. The liquid crystal display is encapsulated with a layer formed of poly-para-xylylene, 2-chloro-poly-para-xylylene or 2,2'-dichlor-poly-para-xylylene. The encapsulation is produced in accordance with the parylene method at a deposition rate ≧ 10 Å/sec.
Inventors
- 👤 Walter Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:11
CPC Classifications
C; C08; C08G; C08G61/00; C08G61/02; C08G61/025; G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1335; G02F1/133528; C08G2261/00; C08G2261/30; C08G2261/34; C08G2261/342; C08G2261/3424; C09; C09K; C09K2323/00; C09K2323/03; C09K2323/031; Y; Y10; Y10S; Y10S359/00; Y10S359/90
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
84 words
A liquid crystal display comprising two substantially plane parallel transparent substrates, two polarizer foils applied to external faces of the substrates, marginal seal means connecting said substrates to define a space therebetween, and a liquid crystal material enclosed within said space between said substrates and said marginal seal means, and an encapsulation comprising a polymerizate of the general formula: ##STR4## wherein each X and Y are substituents independently selected from the group consisting of chlorine and hydrogen, and n designates the degree of polymerization.
Claim 2
Dependent Claim
84 words
A liquid crystal display comprising two substantially plane parallel transparent substrates, two polarizer foils applied to external faces of the substrates, marginal seal means connecting said substrates to define a space therebetween, and a liquid crystal material enclosed within said space between said substrates and said marginal seal means, and an encapsulation comprising a polymerizate of the general formula: ##STR4## wherein each X and Y are substituents independently selected from the group consisting of chlorine and hydrogen, and n designates the degree of polymerization.
Claim 3
Dependent Claim
20 words
The polymerizate as defined in claim 1, wherein: one of the substituents is chlorine and the other substituent is hydrogen.
Claim 4
Independent Claim
110 words
A method of manufacturing a liquid crystal display from an encapsulating means and a liquid crystal display cell, said liquid display cell containing two substantially plane parallel thin layer substrates, two polarizer foils applied to outer sides of the substrates, and a liquid crystal material enclosed between said substrates, which method comprises the steps of: encapsulating the liquid crystal display cell by an encapsulating means composed of a polymerizate of the general formula: ##STR5## wherein each X and Y are substituents independently selected from the group consisting of chlorine and hydrogen, and n designates the degree of polymerization; and the deposition rate of the polymerizate is greater than 10 ÅA/sec.
Claim 5
Independent Claim
110 words
A method of manufacturing a liquid crystal display from an encapsulating means and a liquid crystal display cell, said liquid display cell containing two substantially plane parallel thin layer substrates, two polarizer foils applied to outer sides of the substrates, and a liquid crystal material enclosed between said substrates, which method comprises the steps of: encapsulating the liquid crystal display cell by an encapsulating means composed of a polymerizate of the general formula: ##STR5## wherein each X and Y are substituents independently selected from the group consisting of chlorine and hydrogen, and n designates the degree of polymerization; and the deposition rate of the polymerizate is greater than 10 ÅA/sec.
Claim 6
Dependent Claim
106 words
A liquid crystal display comprising: a liquid crystal display cell containing: two substantially plane parallel transparent substrates; two polarizer foils applied to external faces of said substrates; marginal seal means connecting said substrates to define a space therebetween; and a liquid crystal material enclosed within said space between said substrates and said marginal seal means; encapsulation means enclosing at least said polarizer foils and said marginal seal means; and said encapsulation means being formed of a polymerizate of the general formula: ##STR6## wherein each X and Y are substituents independently selected from the group consisting of chlorine and hydrogen, and n designates the degree of polymerization.
Claim 7
Dependent Claim
106 words
A liquid crystal display comprising: a liquid crystal display cell containing: two substantially plane parallel transparent substrates; two polarizer foils applied to external faces of said substrates; marginal seal means connecting said substrates to define a space therebetween; and a liquid crystal material enclosed within said space between said substrates and said marginal seal means; encapsulation means enclosing at least said polarizer foils and said marginal seal means; and said encapsulation means being formed of a polymerizate of the general formula: ##STR6## wherein each X and Y are substituents independently selected from the group consisting of chlorine and hydrogen, and n designates the degree of polymerization.
Claim 8
Dependent Claim
22 words
The liquid crystal display as defined in claim 4, wherein: one of the substituents is chlorine and the other substituent is hydrogen.
Claim 9
Dependent Claim
33 words
The liquid crystal display as defined in claim 4, wherein: said encapsulation means has a layer thickness which essentially is not less than about 0.001 mm and not greater than about 0.15 mm.
Claim 10
Dependent Claim
15 words
The liquid crystal display as defined in claim 4, wherein: the degree of polymerization n≧5000.
Claim 11
Independent Claim
129 words
A method of manufacturing a liquid crystal display from an encapsulating means and a liquid crystal display cell comprising two substantially plane parallel transparent substrates, two polarizer foils applied to external faces of said substrates, marginal seal means connecting said substrates to define a space therebetween, and a liquid crystal material enclosed within said space between said substrates and said marginal seal means, said method comprising the steps of: encapsulating at least said polarizer foils and said marginal seal means by an encapsulating means composed of a polymerizate of the general formula: ##STR7## wherein each X and Y are substituents independently selected from the group consisting of chlorine and hydrogen, and n designates the degree of polymerization; and depositing the polymerizate at a deposition rate greater than 10 Å/sec.
Claim 12
Independent Claim
129 words
A method of manufacturing a liquid crystal display from an encapsulating means and a liquid crystal display cell comprising two substantially plane parallel transparent substrates, two polarizer foils applied to external faces of said substrates, marginal seal means connecting said substrates to define a space therebetween, and a liquid crystal material enclosed within said space between said substrates and said marginal seal means, said method comprising the steps of: encapsulating at least said polarizer foils and said marginal seal means by an encapsulating means composed of a polymerizate of the general formula: ##STR7## wherein each X and Y are substituents independently selected from the group consisting of chlorine and hydrogen, and n designates the degree of polymerization; and depositing the polymerizate at a deposition rate greater than 10 Å/sec.
References Cited (Backward Citations)
DE1216255B
Cited
US3288728A
Cited
US3600216A
Cited
US3781087A
Cited
US3961843A
Cited
FR2276602B1
Cited
FR2282651B1
Cited
DE2544940C2
Cited
GB2010529B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-01-09 | 1987-07-11 | 1988-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-09 | 1991-07-11 | 1992-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-09 | 1995-07-11 | 1996-01-10 | $7700.00 | Window Closed / Lapsed |