US5354497A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid crystal display
Assignee: Sharp Corp
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Filing: 1993-04-19
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Granted: 1994-10-11
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Expires: 2013-04-19
Abstract
Abstract A liquid crystal display according to the present invention has a pair of plastic substrates opposing each other and a liquid crystal sandwiched therebetween. A hard coat layer made from a resin composition including fine particles of silicon oxide and an organic resin, an undercoat layer and a transparent electrode which are respectively made from an inorganic oxide are formed in this order on the inner opposing surface of each plastic substrate. Thus, a liquid crystal display having a hard coat layer serving as a buffer layer is provided. In this liquid crystal display, cracks in the undercoat layer and the transparent electrode and peeling between the plastic substrate and the undercoat layer are prevented.
Inventors
- 👤 Shunsei Fukuchi
- 👤 Kenji Nishida
- 👤 Makoto Iwamoto
- 👤 Hiroyuki Nagano
- 👤 Kenji Misono
- 👤 Kyouhei Isohata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:18
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/133345; G02F1/133305
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
89 words
A liquid crystal display comprising a pair of plastic substrates opposing each other and a liquid crystal sandwiched therebetween, wherein a hard coat layer made from a resin composition including fine particles of silicon oxide and an organic resin, an undercoat layer and a transparent electrode which are respectively made from an inorganic oxide are formed in this order on the inner opposing surface of each plastic substrate and the hard coat layer includes the fine particles of silicon oxide in the proportion of 20 to 60 wt %.
Claim 2
Dependent Claim
89 words
A liquid crystal display comprising a pair of plastic substrates opposing each other and a liquid crystal sandwiched therebetween, wherein a hard coat layer made from a resin composition including fine particles of silicon oxide and an organic resin, an undercoat layer and a transparent electrode which are respectively made from an inorganic oxide are formed in this order on the inner opposing surface of each plastic substrate and the hard coat layer includes the fine particles of silicon oxide in the proportion of 20 to 60 wt %.
Claim 3
Dependent Claim
29 words
A liquid crystal display according to claim 1, wherein the hard cost layer includes the fine particles of silicon oxide in the proportion of 50 to 60 wt %.
Claim 4
Dependent Claim
30 words
A liquid crystal display according to claim 1, wherein the fine particles of silicon oxide included in the resin composition is silica anhydride in the form of super fine particles.
Claim 5
Dependent Claim
28 words
A liquid crystal display according to claim 1, wherein the organic resin is selected from the group consisting of organosilane resins, acrylic resins, melamine resins and urethane resins.
Claim 6
Dependent Claim
27 words
A liquid crystal display according to claim 1, wherein the plastic substrate is made from one selected from the group consisting of acrylic resins and epoxy resins.
Claim 7
Dependent Claim
45 words
A liquid crystal display according to claim 1, wherein the inorganic oxide is at least one selected from the group consisting of silicon oxide, TiO 2 , ZrO 2 , Al 2 O 3 , Ta 2 O 3 and Nb 2 O 3 .
Claim 8
Dependent Claim
76 words
A liquid crystal display comprising a pair of plastic substrates opposing each other and a liquid crystal sandwiched therebetween, wherein a hard coat layer, and undercoat layer which is made from an inorganic oxide, and a transparent electrode are formed in this order on the inner opposing surface of each plastic substrate, and the hard coat layer includes fine particles of silicon oxide in the proportion of 20 to 60 wt % and an organic resin.
Claim 9
Dependent Claim
76 words
A liquid crystal display comprising a pair of plastic substrates opposing each other and a liquid crystal sandwiched therebetween, wherein a hard coat layer, and undercoat layer which is made from an inorganic oxide, and a transparent electrode are formed in this order on the inner opposing surface of each plastic substrate, and the hard coat layer includes fine particles of silicon oxide in the proportion of 20 to 60 wt % and an organic resin.
Claim 10
Dependent Claim
23 words
A liquid crystal display according to claim 7, wherein the transparent electrode is made of a mixture of indium oxide and tin oxide.
Claim 11
Dependent Claim
21 words
A liquid crystal display according to claim 7, wherein the hard coat layer has a thickness of 2 to 6 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) | 1997-10-10 | 1998-04-11 | 1998-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-10-10 | 2002-04-11 | 2002-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-10-10 | 2006-04-11 | 2006-10-11 | $7700.00 | Window Closed / Lapsed |