US4882616A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color filter for a solid state imaging device
Assignee: NEC Corp
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Filing: 1988-06-08
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Granted: 1989-11-21
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Expires: 2008-06-08
Abstract
Abstract A color filter, particularly a color filter for a solid state imaging device, comprising a dyeable resin layer, a plurality of variously colored dyed-areas formed in the dyeable resin layer, a plurality of non-dyed areas separating the dyed area from each other in the dyeable resin layer, and a plurality of photo-interception areas formed on the non-dyed areas is disclosed. The dyed areas are generally separated from each other by a distance greater than the diffusion length generated during dyeing or heat treatment. The dyed areas can also be spread under the photo-interception areas by a distance substantially equal to the diffusion length generated during dyeing or heat treatment.
Inventors
- 👤 Daisuke Manabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:07
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/0005; G03F7/0007; Y; Y10; Y10S; Y10S430/00; Y10S430/142
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
137 words
A color imaging device comprising: a solid state imaging device comprising a plurality of photosensitive portions and a plurality of non-photosensitive portions, surfaces of said photosensitive portions positioned lower than said non-photosensitive portions; a dyeable resin layer formed on said solid state imaging device to form a flat surface, said dyeable resin layer being in contact with both of said photosensitive portions and said non-photosensitive portions; a plurality of dyed areas formed in said dyeable resin layer positioned on said photosensitive portions, said dyed areas being dyed in a plurality of colors; a plurality of non-dyed areas in said dyeable resin layer positioned on said non-photosensitive portions, said dyed areas being separated from each other by said non-dyed areas; and a plurality of photo-interception areas on said non-dyed areas to define said dyed and said non-dyed areas.
Claim 2
Dependent Claim
137 words
A color imaging device comprising: a solid state imaging device comprising a plurality of photosensitive portions and a plurality of non-photosensitive portions, surfaces of said photosensitive portions positioned lower than said non-photosensitive portions; a dyeable resin layer formed on said solid state imaging device to form a flat surface, said dyeable resin layer being in contact with both of said photosensitive portions and said non-photosensitive portions; a plurality of dyed areas formed in said dyeable resin layer positioned on said photosensitive portions, said dyed areas being dyed in a plurality of colors; a plurality of non-dyed areas in said dyeable resin layer positioned on said non-photosensitive portions, said dyed areas being separated from each other by said non-dyed areas; and a plurality of photo-interception areas on said non-dyed areas to define said dyed and said non-dyed areas.
Claim 3
Dependent Claim
19 words
The color imaging device according to claim 1, wherein said photo-interception areas have a reflectivity of less than 30%.
Claim 4
Dependent Claim
19 words
The color imaging device according to claim 1, wherein said photo-interception areas have a reflectivity of less than 10%.
Claim 5
Dependent Claim
18 words
The color imaging device according to claim 1, wherein said dyed areas are formed in a mosaic pattern.
Claim 6
Dependent Claim
18 words
The color imaging device according to claim 1, wherein said dyed areas are formed in a stripe pattern.
Claim 7
Dependent Claim
18 words
The color imaging device according to claim 1, wherein said photo-interception areas are wider than said non-dyed areas.
Claim 8
Independent Claim
135 words
A method of manufacturing a color imaging device, said method comprising the steps of: forming a solid state imaging device having a plurality of photosensitive portions and a plurality of non-photosensitive portions, surfaces of said photosensitive portions positioned lower than said non-photosensitive portions; depositing a dyeable resin layer on said photosensitive and said non-photosensitive portions to form a flat surface, said dyeable resin layer being in contact with both of said photosensitive and non-photosensitive portions; forming a plurality of photo-interception areas which are in substantial registration with said non-photosensitive portions; and dyeing said dyeable resin layer with said photo-interception areas partially used as a mask to define, in said dyeable resin layer, a plurality of dyed areas and a plurality of non-dyed areas which are positioned on said photosensitive portions and said non-photosensitive portions, respectively.
Claim 9
Independent Claim
135 words
A method of manufacturing a color imaging device, said method comprising the steps of: forming a solid state imaging device having a plurality of photosensitive portions and a plurality of non-photosensitive portions, surfaces of said photosensitive portions positioned lower than said non-photosensitive portions; depositing a dyeable resin layer on said photosensitive and said non-photosensitive portions to form a flat surface, said dyeable resin layer being in contact with both of said photosensitive and non-photosensitive portions; forming a plurality of photo-interception areas which are in substantial registration with said non-photosensitive portions; and dyeing said dyeable resin layer with said photo-interception areas partially used as a mask to define, in said dyeable resin layer, a plurality of dyed areas and a plurality of non-dyed areas which are positioned on said photosensitive portions and said non-photosensitive portions, respectively.
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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) | 1992-11-20 | 1993-05-22 | 1993-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-20 | 1997-05-22 | 1997-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-20 | 2001-05-22 | 2001-11-21 | $7700.00 | Window Closed / Lapsed |