US5237439A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic-substrate liquid crystal display device with a hard coat containing boron or a buffer layer made of titanium oxide
Assignee: Sharp Corp
•
Filing: 1992-09-30
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Granted: 1993-08-17
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Expires: 2012-09-30
Abstract
Abstract A plastic-substrate liquid crystal display device has, on inner faces of a pair of plastic substrates 3 for sandwiching liquid crystals 10, a hard coat 4 made of an organic material, an SiOx undercoat 5, and an ITO electrode 6 in this order. Boron (B) is contained in the material of the hard coat 4. It is thus possible to enhance the adhesion property of the SiOx undercoat 5 and the ITO electrode 6 with respect to the substrate 3 and to prevent the occurrence of cracks therein.
Inventors
- 👤 Kenji Misono
- 👤 Shunsei Fukuchi
- 👤 Makoto Iwamoto
- 👤 Kyouhei Isohata
- 👤 Hiroshi Takanashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:07
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/133345; G02F1/133305
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
56 words
A plastic-substrate liquid crystal display device having, on inner faces of a pair of plastic substrates for sandwiching liquid crystals, a hard coat made of an organic material, an undercoat made of silicon oxide, and an electrode made of indium tin oxide, in this order, wherein boron is contained in the material of the hard coat.
Claim 2
Dependent Claim
56 words
A plastic-substrate liquid crystal display device having, on inner faces of a pair of plastic substrates for sandwiching liquid crystals, a hard coat made of an organic material, an undercoat made of silicon oxide, and an electrode made of indium tin oxide, in this order, wherein boron is contained in the material of the hard coat.
Claim 3
Dependent Claim
62 words
A plastic-substrate liquid crystal display device having, on inner faces of a pair of plastic substrates for sandwiching liquid crystals, a hard coat made of an organic material, an undercoat made of silicon oxide, and an electrode made of indium tin oxide, in this order, wherein a buffer layer made of titanium oxide is provided between the hard coat and the undercoat.
Claim 4
Dependent Claim
62 words
A plastic-substrate liquid crystal display device having, on inner faces of a pair of plastic substrates for sandwiching liquid crystals, a hard coat made of an organic material, an undercoat made of silicon oxide, and an electrode made of indium tin oxide, in this order, wherein a buffer layer made of titanium oxide is provided between the hard coat and the undercoat.
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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) | 1996-08-16 | 1997-02-15 | 1997-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-08-16 | 2001-02-15 | 2001-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-08-16 | 2005-02-15 | 2005-08-17 | $7700.00 | Window Closed / Lapsed |