US4793692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color filter
Assignee: Canon Inc
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Filing: 1985-12-13
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Granted: 1988-12-27
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Expires: 2005-12-13
Abstract
Abstract A color filter is provided by forming a vapor-deposited green colorant layer of an octa-4,5-phenylphthalocyanine colorant which is octa-4,5-phenylphthalocyanine or a metal complex thereof represented by the formula: ##STR1## wherein R is Cu, GaOH, VO, Ni, Pd, Pb, Mg, Ca or Co. The spectral characteristics of the green colorant layer may be corrected with a yellow colorant such as an isoindolinone colorant or an anthraquinone colorant.
Inventors
- 👤 Masaru Kamio
- 👤 Taiko Motoi
- 👤 Hideaki Takao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:04
CPC Classifications
H; H10; H10F; H10F77/00; H10F77/30; H10F77/306; H10F77/331; G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1335; G02F1/133509; G02F1/133514; G02F1/133516; G03; G03F; G03F7/00; G03F7/0005; G03F7/0007
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
43 words
A color filter comprising a vapor deposited green colorant layer, said green colorant layer comprising 1 part by volume of an octa-4,5-phenylphthalocyanine colorant and from 1-5 parts by weight of a yellow colorant selected from the group consisting of isoindolinone and antraquinone colorants.
Claim 2
Dependent Claim
43 words
A color filter comprising a vapor deposited green colorant layer, said green colorant layer comprising 1 part by volume of an octa-4,5-phenylphthalocyanine colorant and from 1-5 parts by weight of a yellow colorant selected from the group consisting of isoindolinone and antraquinone colorants.
Claim 3
Dependent Claim
37 words
The color filter according to claim 1, wherein said ccta-4,5-phenylphthalocyanine colorant is octa-4,5-phenylphthalocyanine or a metal complex represented by the following structure formula: ##STR7## wherein R is Cu, GaOH, VO, Ni, Pd, Pb, Mg, Ca or Co.
Claim 4
Dependent Claim
25 words
The color filter according to claim 1, which comprises a substrate, and said green colorant layer is a patterned colorant layer formed on the substrate.
Claim 5
Dependent Claim
21 words
The color filter according to claim 3, wherein said substrate is a picture element electrode of a liquid crystal display device.
Claim 6
Dependent Claim
19 words
The color filter according to claim 3, wherein said substrate is a counter electrode of a liquid crystal device.
Claim 7
Dependent Claim
16 words
The color filter according to claim 3, wherein said substrate is a solid image pick-up device
Claim 8
Dependent Claim
14 words
The color filter according to claim 3, wherein said substrate is a photosensor array.
Claim 9
Dependent Claim
14 words
The color filter according to claim 3, wherein said substrate is a glass plate.
Claim 10
Dependent Claim
27 words
A solid image pick-up device, comprising: a wafer having a charge coupled device formed thereon, and the color filter according to claim 8 applied onto the wafer.
Claim 11
Dependent Claim
21 words
A color photosensor array, comprising: a photosensor array, and the color filter according to claim 8 applied onto the photosensor array.
Claim 12
Dependent Claim
66 words
The color filter according to claim 3, wherein said green colorant layer is a patterned colorant layer which has been obtained by providing a substrate having a resist pattern thereon, vapor-depositing said octa-4,5-phenylphthalocyanine colorant onto the substrate to form a vapor-deposited layer of the colorant, and removing a portion of the vapor-deposited colorant layer along with the resist pattern to leave the patterned green colorant layer.
Claim 13
Dependent Claim
15 words
The color filter according to claim 1, wherein said yellow colorant is said isoindolinone colorant.
Claim 14
Dependent Claim
31 words
The color filter according to claim 12, wherein said isoindolinone colorant is a compound represented by the formula: ##STR8## wherein R is a group selected from the group consisting of: ##STR9##
Claim 15
Dependent Claim
25 words
The color filter according to claim 12, which comprises a substrate, and said green colorant layer is a patterned colorant layer formed on the substrate.
Claim 16
Dependent Claim
21 words
The color filter according to claim 14, wherein said substrate is a picture element electrode of a liquid crystal display device.
Claim 17
Dependent Claim
19 words
The color filter according to claim 14, wherein said substrate is a counter electrode of a liquid crystal device.
Claim 18
Dependent Claim
16 words
The color filter according to claim 14, wherein said substrate is a solid image pick-up device.
Claim 19
Dependent Claim
14 words
The color filter according to claim 14, wherein said substrate is a photosensor array.
Claim 20
Dependent Claim
15 words
The color filter according to claim 1, wherein said yellow colorant is said anthraquinone colorant.
Claim 21
Dependent Claim
29 words
The color filter according to claim 19, wherein said anthraquinone colorant is a compound selected from the group consisting of those compounds represented by the following structural formulas: ##STR10##
Claim 22
Dependent Claim
25 words
The color filter according to claim 19, which comprises a substrate, and said green colorant layer is a patterned colorant layer formed on the substrate.
Claim 23
Dependent Claim
21 words
The color filter according to claim 19, wherein said substrate is a picture element electrode of a liquid crystal display device.
Claim 24
Dependent Claim
19 words
The color filter according to claim 19, wherein said substrate is a counter electrode of a liquid crystal device.
Claim 25
Dependent Claim
16 words
The color filter according to claim 19, wherein said substrate is a solid image pick-up device.
Claim 26
Dependent Claim
14 words
The color filter according to claim 19, wherein said substrate is a photosensor array.
References Cited (Backward Citations)
US4107133A
Cited
US4682019A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-12-27 | 1992-06-27 | 1992-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-12-27 | 1996-06-27 | 1996-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-12-27 | 2000-06-27 | 2000-12-27 | $7700.00 | Window Closed / Lapsed |