Claims
- 1. A color filter having pixels formed on a transparent substrate comprising a photosensitive coloring composition comprisinga transparent polymer (D) soluble in a solvent or an aqueous alkaline solution, a compound having an ethylenic unsaturated bond (E), a pigment (F), a photopolymerization initiator for producing a color filter, said photopolymerization initiator comprising a sensitizer (A) which absorbs light having a wavelength of 300 to 500 nm, said sensitizer (A) containing a benzophenone compound, a biimidazole compound or a mixture thereof; an organic boron complex (B) represented by formula (1): wherein each of R1, R2, R3, and R4 represents an alkyl group, an aryl group, an aralky group, an alkenyl group, a heterocyclic group, or an alicyclic group; and Z+ represents an ammonium cation, a sulfonium cation, an oxosulfonium cation, a pyridinium cation, a phosphonium cation, an oxonium cation, or an iodonium cation; and a compound (C) containing multiple thiol groups.
- 2. A color filter according to claim 1, wherein said compound (C) is at least one member selected from the group consisting of butanediol bis(2-mercaptoacetate), butanediol bis (3-mercaptopropionate), ethylene glycol bis(2-mercaptoacetate), ethylene glycol bis (3-mercaptopropionate), trimethylolpropane tris(2-mercaptoacetate), trimethylolpropane tris(3-mercaptopropionate), pentaerythritol tetrakis(2-mercaptoacetate), and pentaerythritol tetrakis(3 -mercaptopropionate).
- 3. A method for producing a color filter comprisingforming a layer of a photosensitive coloring composition having an exposed portion on a transparent substrate; said photosensitive coloring composition comprising a transparent polymer (D) soluble in a solvent or an aqueous alkaline solution, a compound having an ethylenic unsaturated bond (E), a pigment (F), a photopolymerization initiator for producing a color filter, said photopolymerization initiator comprising a sensitizer (A) which absorbs light having a wavelength of 300 to 500 nm, said sensitizer (A) containing a benzophenone compound, a biimidazole compound or a mixture thereof; an organic boron complex (B) represented by formula (1): wherein each of R1, R2, R3, and R4 represents an alkyl group, an aryl group, an aralkyl group, an alkenyl group, a heterocyclic group, or an alicyclic group; and Z+ represents an ammonium cation, a sulfonium cation, an oxosulfonium cation, a pyridinium cation, a phosphonium cation, an oxonium cation, or an iodonium cation; and a compound (C) containing multiple thiol groups, and photocuring the exposed portion.
- 4. A method for producing a color filter according to claim 3, wherein said compound (C) is at least one member selected from the group consisting of butanediol bis(2-mercaptoacetate), butanediol bis (3-mercaptopropionate), ethylene glycol bis(2-mercaptoacetate), ethylene glycol bis (3-mercaptopropionate), trimethylolpropane tris(2-mercaptoacetate), trimethylolpropane tris(3-mercaptopropionate), pentaerythritol tetrakis(2-mercaptoacetate), and pentaerythritol tetrakis(3-mercaptopropionate).
- 5. A color filter having pixels formed on a transparent substrate comprising a photosensitive coloring composition comprisinga transparent polymer (D) soluble in a solvent or an aqueous alkaline solution, a compound having an ethylenic unsaturated bond (E), a pigment (F), a photopolymerization initiator for producing a color filter, said photopolymerization initiator comprising a sensitizer (A) which absorbs light having a wavelength of 300 to 500 mn, said sensitizer (A) containing a benzophenone compound, a buimidazole compound or a mixture thereof; an organic boron complex (B) represented by formula (1): wherein each of R1, R2, R3, and R4 represents an alkyl group, an aryl group, an aralkyl group, an alkenyl group, a heterocyclic group, or an alicyclic group; and Z, represents an ammonium cation, a sulfonium cation, an oxosulfonium cation, a pyridinium cation, a phosphonium cation, an oxonium cation, or an iodonium cation; and a compound (C) containing a thiol group.
- 6. A method for producing a color filter comprisingforming a layer of a photosensitive coloring composition having an exposed portion on a transparent substrate; said photosensitive coloring composition comprising a transparent polymer (D) soluble in a solvent or an aqueous alkaline solution, a compound having an ethylenic unsaturated bond (E), a pigment (F), a photopolymerization initiator for producing a color filter, said photopolymerization initiator comprising a sensitizer (A) which absorbs light having a wavelength of 300 to 500 nm, said sensitizer (A) containing a benzophenone compound, a biimidazole compound or a mixture thereof; an organic boron complex (B) represented by formula (1): wherein each of R1, R2, R3, and R4 represents an alkyl group, an aryl group, an aralkyl group, an alkenyl group, a heterocyclic group, or an alicyclic group; and Z+ represents an ammonium cation, a sulfonium cation, an oxosulfonium cation, a pyridinium cation, a phosphonium cation, an oxonium cation, or an iodonium cation; and a compound (C) containing a thiol group, and photocuring the exposed portion.
- 7. A color filter having pixels formed on a transparent substrate comprising a photosensitive coloring composition comprisinga transparent polymer (D) soluble in a solvent or an aqueous alkaline solution, a compound having an ethylenic unsaturated bond (E), a pigment (F), a photopolymerization initiator for producing a color filter, said photopolymerization initiator comprising a sensitizer (A) which absorbs light having a wavelength of 300 to 500 nm, said sensitizer (A) containing a benzophenone compound, a bilmidazole compound or a mixture thereof; an organic boron complex (B) represented by formula (1): wherein each of R1, R2, R3, and R4 represents an alkyl group, an aryl group, an aralkyl group, an alkenyl group, a heterocyclic group, or an alicyclic group; and Z+ represents an ammonium cation, a sulfonium cation, an oxosulfonium cation, a pyridinium cation, a phosphonium cation, an oxonium cation, or an iodonium cation; and a compound (C) containing a thiol group, wherein said thiol-group-containing compound (C) is at least one member selected from the group consisting of 2-mercaptobenzothiazole, butanediol bis(2-mercaptoacetate), butanediol bis (3-mercaptopropionate), ethylene glycol bis(2-mercaptoacetate), ethylene glycol bis (3-mercaptopropionate), trimethylolpropane tris(2-mercaptoacetate), trimethylolpropane tris(3-mercaptopropionate), pentaerythritol tetrakis(2-mercaptoacetate), and pentaerythritol tetrakis(3-mercaptopropionate).
- 8. A method for producing a color filter comprisingforming a layer of a photosensitive coloring composition having an exposed portion on a transparent substrate; said photosensitive coloring composition comprising a transparent polymer (D) soluble in a solvent or an aqueous alkaline solution, a compound having an ethylenic unsaturated bond (E), a pigment (F), a photopolymerization initiator for producing a color filter, said photopolymerization initiator comprising a sensitizer (A) which absorbs light having a wavelength of 300 to 500 nm, said sensitizer (A) containing a benzophenone compound, a biimidazole compound or a mixture thereof; an organic boron complex (B) represented by formula (1): wherein each of R1, R2, R3, and R4 represents an alkyl group, an aryl group, an aralkyl group, an alkenyl group, a heterocyclic group, or an alicyclic group; and Z+ represents an ammonium cation, a sulfonium cation, an oxosulfonium cation, a pyridinium cation, a phosphonium cation, an oxonium cation, or an iodonium cation; and a compound (C) containing a thiol group, wherein said thiol-group-containing compound (C) is at least one member selected from the group consisting of 2-mercaptobenzothiazole, butanediol bis(2-mercaptoacetate), butanediol bis (3-mercaptopropionate), ethylene glycol bis(2-mercaptoacetate), ethylene glycol bis (3-mercaptopropionate), trimethylolpropane tris(2-mercaptoacetate), trimethylolpropane tris(3-mercaptopropionate), pentaerythritol tetrakis(2-mercaptoacetate), and pentaerythritol tetrakis(3-mercaptopropionate), and photocuring the exposed portion.
Priority Claims (1)
Number |
Date |
Country |
Kind |
11-049742 |
Feb 1999 |
JP |
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CROSS REFERENCE TO RELATED APPLICATIONS
This application is an application filed under 35 U.S.C. §111(a) claiming benefit pursuant to 35 U.S.C. §119(e)(i) of the filing date of Provisional Application No. 60/132,449 filed May 4, 1999 pursuant to 35 U.S.C. §111(b).
US Referenced Citations (4)
Number |
Name |
Date |
Kind |
4917977 |
Smothers |
Apr 1990 |
A |
5176984 |
Hipps, Sr. et al. |
Jan 1993 |
A |
5622794 |
Sato et al. |
Apr 1997 |
A |
6207726 |
Ohtani et al. |
Mar 2001 |
B1 |
Foreign Referenced Citations (5)
Number |
Date |
Country |
44 43 780 |
Jun 1995 |
DE |
879 829 |
Nov 1998 |
EP |
889 362 |
Jan 1999 |
EP |
900 800 |
Mar 1999 |
EP |
2 307 474 |
May 1997 |
GB |
Non-Patent Literature Citations (1)
Entry |
Li et al., “4-(4'-dimethylaminostrly)benzophenone/diphenyliodonium salt—a new kind of electron transfer photosensitization system for radical photopolymerization” Chem. Ab. + Indexes, US American Chem. Society, vol. 121, No. 18, Oct. 1994. |
Provisional Applications (1)
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Number |
Date |
Country |
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60/132449 |
May 1999 |
US |