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US4620772A
Expired / Lapsed
US
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Liquid crystal display plastic cell structure
Assignee: Nitto Denko Corp
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Filing: 1984-10-05
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Granted: 1986-11-04
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Expires: 2004-10-05
Abstract
Abstract A liquid crystal display plastic cell structure free of deviation in position of electrode patterns comprising: a cell substrate comprising a polarizing plate and an electrode pattern provided on the surface of the polarizing plate, said polarizing plate being produced by laminating a monoaxially stretched film on both surfaces of a polarizer in such a manner that the absorption axis of the polarizer is in parallel with the stretching axis of the monoaxially oriented films: a cell substrate comprising a polarizing plate and an electrode pattern provided on the surface of the polarizing plate, said polarizing plate being produced by laminating a monoaxially stretched film on both surfaces of a polarizer in such a manner that the absorption axis of the polarizer is at right angles to the stretching axis of the monoaxially stretched films; and a liquid crystal sealed between the cell substrates, wherein the stretching axes of the monoaxially stretched films are in parallel with each other.
Inventors
- 👤 Toshihiko Sugimoto
- 👤 Yozo Oishi
- 👤 Suguru Yamamoto
- 👤 Masaaki Kawaguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:47
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/133305; G02F1/1335; G02F1/133528
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
159 words
A liquid crystal display plastic cell structure free of deviation in position of electrode patterns comprising: a cell substrate comprising a polarizing plate and an electrode pattern provided on the surface of the polarizing plate, said polarizing plate being produced by laminating a monoaxially stretched film on both surfaces of a polarizer in such a manner that the absorption axis of the polarizer is in parallel with the stretching axis of the monoaxially oriented films; a cell substrate comprising a polarizing plate and an electrode pattern provided on the surface of the polarizing plate, said polarizing plate being produced by laminating a monoaxially stretched film on both surfaces of a polarizer in such a manner that the absorption axis of the polarizer is at right angles to the stretching axis of the monoaxially stretched films; and a liquid crystal sealed between the cell substrates, wherein the stretching axes of the monoaxially stretched films are in parallel with each other.
Claim 2
Dependent Claim
159 words
A liquid crystal display plastic cell structure free of deviation in position of electrode patterns comprising: a cell substrate comprising a polarizing plate and an electrode pattern provided on the surface of the polarizing plate, said polarizing plate being produced by laminating a monoaxially stretched film on both surfaces of a polarizer in such a manner that the absorption axis of the polarizer is in parallel with the stretching axis of the monoaxially oriented films; a cell substrate comprising a polarizing plate and an electrode pattern provided on the surface of the polarizing plate, said polarizing plate being produced by laminating a monoaxially stretched film on both surfaces of a polarizer in such a manner that the absorption axis of the polarizer is at right angles to the stretching axis of the monoaxially stretched films; and a liquid crystal sealed between the cell substrates, wherein the stretching axes of the monoaxially stretched films are in parallel with each other.
Claim 3
Dependent Claim
26 words
The liquid crystal display plastic cell structure as claimed in claim 1, wherein the monoaxially stretched film is a polyester film stretched by 50 to 800%.
Claim 4
Dependent Claim
75 words
The liquid crystal display plastic cell structure as claimed in claim 1, wherein the electrode pattern is provided by coating a light-sensitive resin on a transparent electrically conductive layer formed by a method selected from the group consisting of a vacuum deposition method, a sputtering method and an ion plating method, placing a photomask on the light-sensitive resin layer, exposing the light-sensitive resin layer through the photomask to light, and applying an etching treatment thereon.
Claim 5
Dependent Claim
53 words
The liquid crystal display plastic cell structure as claimed in claim 1, wherein a difference in moisture-absorbing expansion coefficient between the two cell substrates is from 0.00 to 0.15% in a stretching axis direction of the monoaxially stretched film, and 0.15% or less in a direction perpendicular to the above stretching axis direction.
Claim 6
Dependent Claim
72 words
The liquid crystal display plastic cell structure as claimed in claim 1, wherein the heat shrinkage coefficient of the monoaxially stretched film when heated at 150° C. for 30 minutes is 3% or less in a stretching direction (MD) and 3% or less in a direction (TD) perpendicular to the stretching direction, provided that the heat shrinkage coefficient ratio of the direction (TD) to the direction (MD) is 3.5 times or less.
Claim 7
Dependent Claim
30 words
The liquid crystal display plastic cell structure as claimed in claim 1, wherein the monoaxially stretched film has a haze of 10% or less at a thickness of 100 μm.
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) | 1989-11-03 | 1990-05-05 | 1990-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-03 | 1994-05-05 | 1994-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-03 | 1998-05-05 | 1998-11-04 | $7700.00 | Window Closed / Lapsed |