Patent US5811209A successfully refreshed from Google Patents.
US5811209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color filter, production process thereof, and liquid crystal display panel equipped with the color filter
Assignee: Canon Inc
•
Filing: 1995-09-20
•
Granted: 1998-09-22
•
Expires: 2015-09-20
Abstract
Abstract Disclosed herein is a process for producing a color filter, arranged with a plurality of colored pixels on the base, by applying inks of red, blue and green colors onto a base by an ink-jet system, wherein at least one of the blue and green inks comprises a dye selected from the group consisting of C.I. Direct Blue 86, C.I. Direct Blue 87 and C.I. Direct Blue 199.
Inventors
- 👤 Tsuyoshi Eida
- 👤 Katsuhiro Shirota
- 👤 Takeshi Miyazaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:11
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1335; G02F1/133509; G02F1/133514; G02F1/133516; G02B; G02B5/00; G02B5/20; G02B5/201; G02F1/133512
Claims Analysis
Total Claims: 48
Claim 1
Independent Claim
62 words
A process for producing a color filter, arranged with a plurality of colored pixels on a base, by applying inks of red, blue and green colors onto the base with an ink-jet printing system, wherein the blue ink comprises a dye of C.I. Direct Blue 199 and a dye selected from the group consisting of red, magenta and violet colors in combination.
Claim 2
Dependent Claim
62 words
A process for producing a color filter, arranged with a plurality of colored pixels on a base, by applying inks of red, blue and green colors onto the base with an ink-jet printing system, wherein the blue ink comprises a dye of C.I. Direct Blue 199 and a dye selected from the group consisting of red, magenta and violet colors in combination.
Claim 3
Dependent Claim
38 words
The process according to claim 1, wherein the dye of a red, magenta or violet color is selected from the group consisting of C.I. Acid Red 145, 157, 289 and 319, and C.I. Acid Violet 9 and 51.
Claim 4
Dependent Claim
23 words
The process according to claim 1, wherein the concentration of the dyes in the blue ink is from 0.1 to 15% by weight.
Claim 5
Dependent Claim
30 words
The process according to claim 1, wherein the blue ink contains from 5 to 50% by weight of a solvent having a boiling point of from 150° to 250° C.
Claim 6
Dependent Claim
22 words
The process according to claim 1, wherein the colored pixels are arranged in a resin layer provided on an optically transparent base.
Claim 7
Dependent Claim
19 words
The process according to claim 5, wherein a material forming the resin layer comprises a water-soluble acrylic monomer unit.
Claim 8
Dependent Claim
18 words
The process according to claim 5, wherein a material forming the resin layer comprises a water-soluble cellulosic polymer.
Claim 9
Dependent Claim
20 words
The process according to claim 5, further comprising forming a protective layer on the resin layer having the colored pixels.
Claim 10
Dependent Claim
22 words
The process according to claim 8, wherein the protective layer comprises a resin composition capable of setting by light exposure and/or heating.
Claim 11
Dependent Claim
20 words
The process according to claim 8, wherein the protective layer comprises an inorganic layer formed by vacuum deposition or sputtering.
Claim 12
Dependent Claim
16 words
A color filter produced by the process according to any one of claims 1 to 10.
Claim 13
Dependent Claim
143 words
A process for producing a color filter by applying inks of red, blue and green colors to a base having light-screening areas and light-transmitting areas with an ink-jet printing system to arrange colorants on the base, which comprises the steps of: (1) providing a resin layer which is capable of setting by light exposure, optionally followed by heating and is ink-receptive onto the base; (2) subjecting a part of the resin layer on the light-screening areas to light exposure, optionally followed by heating; (3) applying colorants to unexposed portions of the resin layer with the ink-jet printing system using a blue ink comprising a dye of C.I. Direct Blue 199 and a dye selected from the group consisting of red, magenta and violet colors in combination; and (4) setting the colored portions of the resin layer by light exposure, optionally followed by heating.
Claim 14
Dependent Claim
143 words
A process for producing a color filter by applying inks of red, blue and green colors to a base having light-screening areas and light-transmitting areas with an ink-jet printing system to arrange colorants on the base, which comprises the steps of: (1) providing a resin layer which is capable of setting by light exposure, optionally followed by heating and is ink-receptive onto the base; (2) subjecting a part of the resin layer on the light-screening areas to light exposure, optionally followed by heating; (3) applying colorants to unexposed portions of the resin layer with the ink-jet printing system using a blue ink comprising a dye of C.I. Direct Blue 199 and a dye selected from the group consisting of red, magenta and violet colors in combination; and (4) setting the colored portions of the resin layer by light exposure, optionally followed by heating.
Claim 15
Dependent Claim
30 words
The process according to claim 12, wherein the width of the resin layer on the light-screening areas exposed in the step (2) is narrower than that of the light-screening area.
Claim 16
Dependent Claim
19 words
The process according to claim 12, further comprising forming a protective layer on the resin layer after step (4).
Claim 17
Dependent Claim
22 words
The process according to claim 14, wherein the protective layer comprises a resin composition capable of setting by light exposure and/or heating.
Claim 18
Dependent Claim
20 words
The process according to claim 14, wherein the protective layer comprises an inorganic layer formed by vacuum deposition or sputtering.
Claim 19
Dependent Claim
38 words
The process according to claim 12, wherein the dye of a red, magenta or violet color is selected from the group consisting of C.I. Acid Red 145, 157, 289 and 319, and C.I. Acid Violet 9 and 51.
Claim 20
Dependent Claim
23 words
The process according to claim 12, wherein the concentration of the dyes in the blue ink is from 0.1 to 15% by weight.
Claim 21
Dependent Claim
30 words
The process according to claim 12, wherein the blue ink contains from 5 to 50% by weight of a solvent having a boiling point of from 150° to 250° C.
Claim 22
Dependent Claim
23 words
The process according to claim 12, wherein a material forming the resin layer is a polymer containing at least water-soluble acrylic monomer units.
Claim 23
Dependent Claim
18 words
The process according to claim 12, wherein a material forming the resin layer comprises a water-soluble cellulosic polymer.
Claim 24
Dependent Claim
16 words
A color filter produced by the process according to any one of claims 12 to 21.
Claim 25
Dependent Claim
42 words
A color filter arranged with pixels colored in red, green and blue, wherein a portion colored in blue contains a dye of C.I. Direct Blue 199 and a dye selected from the group consisting of red, magenta and violet colors in combination.
Claim 26
Dependent Claim
42 words
A color filter arranged with pixels colored in red, green and blue, wherein a portion colored in blue contains a dye of C.I. Direct Blue 199 and a dye selected from the group consisting of red, magenta and violet colors in combination.
Claim 27
Dependent Claim
39 words
The color filter according to claim 23, wherein the dye of a red, magenta or violet color is selected from the group consisting of C.I. Acid Red 145, 157, 289 and 319, and C.I. Acid Violet 9 and 51.
Claim 28
Dependent Claim
22 words
The color filter according to claim 23, wherein the pixels are arranged in a resin layer provided on an optically transparent base.
Claim 29
Dependent Claim
24 words
The color filter according to claim 25, wherein a material forming the resin layer is a polymer containing at least water-soluble acrylic monomer units.
Claim 30
Dependent Claim
19 words
The color filter according to claim 25, wherein a material forming the resin layer comprises a water-soluble cellulosic polymer.
Claim 31
Dependent Claim
21 words
The color filter according to claim 25, further comprising a protective layer provided on the resin layer having the colored pixels.
Claim 32
Dependent Claim
15 words
The color filter according to claim 28, wherein the protective layer comprises a resin composition.
Claim 33
Dependent Claim
15 words
The color filter according to claim 28, wherein the protective layer comprises an inorganic layer.
Claim 34
Dependent Claim
47 words
A liquid crystal display panel comprising the color filter according to any one of claims 23 to 30 a panel base provided in an opposing relation with the color filter and a liquid crystal composition enclosed in a space between the color filter and the panel base.
Claim 35
Dependent Claim
14 words
An information processor equipped with the liquid crystal display panel according to claim 31.
Claim 36
Dependent Claim
86 words
A color filter comprising a base having light-screening areas and light-transmitting areas, and a resin layer provided thereon and the resin layer having portions colored in red, blue and green and arranged with pixels colored in red, blue and green, wherein the resin layer on the light-screening areas has a colored portion and an uncolored portion, and a portion colored in blue contains a dye of C.I. Direct Blue 199 and a dye selected from the group consisting of red, magenta and violet colors in combination.
Claim 37
Dependent Claim
86 words
A color filter comprising a base having light-screening areas and light-transmitting areas, and a resin layer provided thereon and the resin layer having portions colored in red, blue and green and arranged with pixels colored in red, blue and green, wherein the resin layer on the light-screening areas has a colored portion and an uncolored portion, and a portion colored in blue contains a dye of C.I. Direct Blue 199 and a dye selected from the group consisting of red, magenta and violet colors in combination.
Claim 38
Dependent Claim
39 words
The color filter according to claim 31, wherein the dye of a red, magenta or violet color is selected from the group consisting of C.I. Acid Red 145, 157, 289 and 319, and C.I. Acid Violet 9 and 51.
Claim 39
Dependent Claim
16 words
The color filter according to claim 33, further comprising a protective layer on the resin layer.
Claim 40
Dependent Claim
15 words
The color filter according to claim 35, wherein the protective layer comprises a resin composition.
Claim 41
Dependent Claim
15 words
The color filter according to claim 35, wherein the protective layer comprises an inorganic layer.
Claim 42
Dependent Claim
15 words
The color filter according to claim 33, wherein the colored portions adjoin the light-screening areas.
Claim 43
Dependent Claim
22 words
The color filter according to claim 33, wherein the width of the uncolored portion is narrower than that of the light-screening area.
Claim 44
Dependent Claim
16 words
The color filter according to claim 33, wherein the colored portions are formed by ink dots.
Claim 45
Dependent Claim
24 words
The color filter according to claim 33, wherein a material forming the resin layer comprises a polymer containing at least water-soluble acrylic monomer units.
Claim 46
Dependent Claim
19 words
The color filter according to claim 33, wherein a material forming the resin layer comprises a water-soluble cellulosic polymer.
Claim 47
Dependent Claim
47 words
A liquid crystal display panel comprising the color filter according to any one of claims 33 to 42, a panel base provided in an opposing relation with the color filter and a liquid crystal composition enclosed in a space between the color filter and the panel base.
Claim 48
Dependent Claim
13 words
An information processor equipped with liquid crystal display panel according to claim 43.
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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) | 2001-09-21 | 2002-03-23 | 2002-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-09-21 | 2006-03-23 | 2006-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-09-21 | 2010-03-23 | 2010-09-22 | $7700.00 | Window Closed / Lapsed |