Patent US5498498A successfully refreshed from Google Patents.
US5498498A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photosensitive resin composition used in a method for forming a light-shielding film
Assignee: Tokyo Ohka Kogyo Co Ltd
•
Filing: 1994-08-01
•
Granted: 1996-03-12
•
Expires: 2014-08-01
Abstract
Abstract Disclosed is a photosensitive resin composition for use in a light-shielding film, comprising a photosensitive resin and a light-shielding coloring material, wherein light transmission properties after formation of the light-shielding film are controlled by the light-shielding coloring material so that (i) the light transmission through the light-shielding film is 1% or more in at least one wavelength of a light wavelength region of from 330 nm to less than 425 nm, and (ii) the light transmission through the light-shielding film is 2% or less in a light wavelength region of from 425 to 650 nm.
Inventors
- 👤 Kiyoshi Uchikawa
- 👤 Hiroshi Komano
- 👤 Toshimi Aoyama
- 👤 Katsuyuki Ohta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:14
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/153; G03F; G03F7/00; G03F7/0005; G03F7/0007; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1335; G02F1/133509; G02F1/133512
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
165 words
A process for preparing a light-shielding film, wherein the process comprises: (a) coating a photosensitive resin composition on a substrate, said photosensitive resin comprising a photosensitive resin and a light-shielding coloring material in admixture, wherein the light-shielding coloring material comprises pigments selected from the group consisting of (i) yellow, red, and blue pigments, (ii) orange and blue pigments, (iii) yellow and violet pigments, and (iv) green and red pigments; (b) drying the photosensitive resin composition; (c) exposing the photosensitive resin composition to light; and (d) developing the photosensitive resin composition, wherein light transmission properties after formation of the light-shielding film are controlled by the light-shielding coloring material so that (i) the light transmission through the light-shielding film is 1% or more in at least one wavelength of a light wavelength region of from 330 nm to less than 425 nm, and (ii) the light transmission through the light-shielding film is 2% or less in a light wavelength region of from 425 nm to 650 nm.
Claim 2
Dependent Claim
165 words
A process for preparing a light-shielding film, wherein the process comprises: (a) coating a photosensitive resin composition on a substrate, said photosensitive resin comprising a photosensitive resin and a light-shielding coloring material in admixture, wherein the light-shielding coloring material comprises pigments selected from the group consisting of (i) yellow, red, and blue pigments, (ii) orange and blue pigments, (iii) yellow and violet pigments, and (iv) green and red pigments; (b) drying the photosensitive resin composition; (c) exposing the photosensitive resin composition to light; and (d) developing the photosensitive resin composition, wherein light transmission properties after formation of the light-shielding film are controlled by the light-shielding coloring material so that (i) the light transmission through the light-shielding film is 1% or more in at least one wavelength of a light wavelength region of from 330 nm to less than 425 nm, and (ii) the light transmission through the light-shielding film is 2% or less in a light wavelength region of from 425 nm to 650 nm.
Claim 3
Dependent Claim
29 words
The process for preparing a light-shielding film as in claim 1, wherein the light-shielding coloring material comprises pigments having a mean particle size of from 0.05 to 2.0 μm.
Claim 4
Dependent Claim
40 words
The process for preparing a light-shielding film as in claim 1, wherein the light-shielding coloring material comprises pigments used in a total amount of from 10 to 150 parts by weight per 100 parts by weight of the photosensitive resin.
Claim 5
Dependent Claim
40 words
The process for preparing a light-shielding film as in claim 1, wherein the light-shielding coloring material comprises dyes used in a total amount of from 2 to 100 parts by weight per 100 parts by weight of the photosensitive resin.
Claim 6
Dependent Claim
37 words
The process for preparing a light-shielding film as in claim 1, wherein the photosensitive resin comprises an acrylic polymer photosensitive resin comprising an acrylic copolymer resin, a polyfunctional acrylic monomer, a methacrylic monomer, and a photopolymerization initiator.
Claim 7
Dependent Claim
39 words
The process for preparing a light-shielding film as in claim 1, wherein the photosensitive resin comprises (i) a water-soluble photosensitive resin having a photosensitive group or (ii) a water-soluble photosensitive resin comprising a water-soluble resin and a photosensitive agent.
Claim 8
Dependent Claim
24 words
The process for preparing a light-shielding film as in claim 1, wherein the photosensitive resin comprises an oil-soluble photosensitive resin having a photosensitive group.
Claim 9
Dependent Claim
182 words
The process for preparing a light-shielding film as in claim 1, wherein the yellow pigment is selected from the group consisting of C.I. Pigment Yellow 1, C.I. Pigment Yellow 3, C.I. Pigment Yellow 12, C.I. Pigment 13, C.I. Pigment Yellow 14, C.I. Pigment Yellow 14, C.I. Pigment 83, and C.I. Pigment Yellow 139; the orange pigment is C.I. Pigment Orange 13; the red pigment is selected from the group consisting of C.I. Pigment Red 3, C.I. Pigment Red 22, C.I. Pigment Red 38, C.I. Pigment Red 48, C.I. Pigment Red 49, C.I. Pigment Red 53, C.I. Pigment Red 57, C.I. Pigment Red 58, C.I. Pigment Red 60, C.I. Pigment Red 63, C.I. Pigment Red 149, and C.I. Pigment Red 177; the violet pigment is selected from the group consisting of C.I. Pigment Violet 1 and C.I. Pigment Violet 23; the blue pigment is selected from the group consisting of C.I. Pigment Blue 1, C.I. Pigment blue 15, and C.I. Pigment Blue 16; and the green pigment is selected from the group consisting of C.I. Pigment Green 7 and C.I. Pigment Green 36.
Claim 10
Dependent Claim
26 words
The process for preparing a light-shielding film as in claim 1, further comprising the step of forming a polyvinyl alcohol layer on said photosensitive resin composition.
Claim 11
Dependent Claim
28 words
The process for preparing a light-shielding film as in claim 1, further comprising the step of heat treating the photosensitive resin composition subsequent to development for complete curing.
References Cited (Backward Citations)
US3969751A
Cited
US4369241A
Cited
US4590138A
Cited
US4812387A
Cited
US5081004A
Cited
US5151336A
Cited
US5248576A
Cited
US5095379A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-03-12 | 1999-09-11 | 2000-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-03-12 | 2003-09-11 | 2004-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-03-12 | 2007-09-11 | 2008-03-12 | $7700.00 | Window Closed / Lapsed |