Patent US5042920A successfully refreshed from Google Patents.
US5042920A
Expired / Lapsed
US
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Liquid crystal display device and color filter for use with the liquid crystal display device with two resin layers over the color filter
Assignee: Toshiba Corp
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Filing: 1989-11-09
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Granted: 1991-08-27
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Expires: 2009-11-09
Abstract
Abstract A color filter for use with a liquid crystal display is disclosed. The color filter has colored layers printed on a transparent substrate and first and second resin layers coated on the colored layers.
Inventors
- 👤 Thunekazu Yoshino
- 👤 Tomiya Sonoda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:35
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/20; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1335; G02F1/133509; G02F1/133514; G02B5/201; G02F1/133357; G02F1/133519
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
83 words
A liquid crystal display device comprising: a first electrode substrate having a first transparent substrate, a color filter and a first electrode disposed adjacently; a second electrode substrate having a second transparent substrate and a second electrode disposed adjacently; and a liquid crystal material sandwiched between said first and second electrode substrate; wherein said color filter has a transparent colored layer and a plurality of resin layers provided on said colored layer, and said first electrode is provided on said plural resin layers.
Claim 2
Dependent Claim
83 words
A liquid crystal display device comprising: a first electrode substrate having a first transparent substrate, a color filter and a first electrode disposed adjacently; a second electrode substrate having a second transparent substrate and a second electrode disposed adjacently; and a liquid crystal material sandwiched between said first and second electrode substrate; wherein said color filter has a transparent colored layer and a plurality of resin layers provided on said colored layer, and said first electrode is provided on said plural resin layers.
Claim 3
Dependent Claim
23 words
A liquid crystal display device according to claim 1, wherein at least one of said plurality of resin layers has an abraded surface.
Claim 4
Dependent Claim
40 words
A color filter comprising: a transparent substrate; a transparent colored layer arranged on said transparent substrate; a plurality of resin layers provided on said transparent colored layer; and a transparent conductive electrode layer provided on said plurality of resin layers.
Claim 5
Dependent Claim
40 words
A color filter comprising: a transparent substrate; a transparent colored layer arranged on said transparent substrate; a plurality of resin layers provided on said transparent colored layer; and a transparent conductive electrode layer provided on said plurality of resin layers.
Claim 6
Dependent Claim
25 words
A color filter according to claim 3, wherein said plurality of resin layers has a first acryl resin layer and a second epoxy resin layer.
Claim 7
Dependent Claim
21 words
A color filter according to claim 3, wherein at least one of said plurality of resin layers has an abraded surface.
Claim 8
Dependent Claim
32 words
A color filter according to claim 5, wherein said resin layer having said abraded surface is made of a material that is harder and more difficult to polish than said colored layer.
Claim 9
Dependent Claim
41 words
A color filter according to claim 6, wherein said resin layer having said abraded surface is made of at least one resin selected from the group consisting of epoxy resin, polyimide resin, polyamide resin silicone resin, and compounds of these resins.
Claim 10
Dependent Claim
23 words
A color filter according to claim 5, wherein part of said colored layer is covered with said resin layer having said abraded surface.
Claim 11
Dependent Claim
23 words
A color filter according to claim 5, wherein all of said colored layer is covered with said resin layer having said abraded surface.
Claim 12
Dependent Claim
33 words
A color filter according to claim 5, wherein said plurality of resin layers includes a first resin layer having said abraded surface and a second resin layer provided on said first resin layer.
Claim 13
Dependent Claim
33 words
A color filter according to claim 5, wherein said plurality of resin layers includes a first resin layer and a second resin layer having said abraded surface provided on said first resin layer.
Claim 14
Dependent Claim
32 words
A color filter according to claim 11, wherein said first resin layer is made of at least one resin selected from the group consisting of acryl resin, alkyd resin, and polyamide resin.
Claim 15
Dependent Claim
43 words
A color filter according to claim 5, wherein said plurality of resin layers includes a first resin layer, a second resin layer having said abraded surface provided on said first resin layer and a third resin layer provided on said second resin layer.
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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) | 1994-08-26 | 1995-02-25 | 1995-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-08-26 | 1999-02-25 | 1999-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-08-26 | 2003-02-25 | 2003-08-27 | $7700.00 | Window Closed / Lapsed |