Blue printing ink for color filter applications

• US 7,544,723 B2
• Filed: 07/15/2005
• Issued: 06/09/2009
• Est. Priority Date: 07/15/2005
• Status: Expired due to Fees

• Current Assignee: Applied Materials Incorporated
• Original Assignee: Applied Materials Incorporated
• Inventors: Sun, Lizhong, Shang, Quanyuan, White, John M.
• Primary Examiner(s): Cain; Edward J
• Application Number:
  US11/182,491
• Publication Number:
  US 20070014933A1
• Time in Patent Office: 1,425 Days
• Field of Search: 523/160, 523/161
• US Class Current: 523/160
• CPC Class Codes: C09D 11/322 Pigment inks

Abstract

Blue inks for displays are provided. In one aspect, the blue inks include one or more blue organic pigments, one or more monomers, one or more polymeric dispersants, and one or more organic solvents. In another aspect, the blue inks include one or more blue organic pigments, one or more violet pigments, one or more monomers, one or more polymeric dispersants, and one or more organic solvents. Methods of forming displays that include dispensing the blue inks by inkjetting onto a substrate and displays that include the blue inks are also provided.

Claims

1. A blue ink comprising:

one or more blue organic pigments;

one or more monomers;

one or more polymeric dispersants; and

one or more organic solvents, wherein the blue ink has a chromaticity of x=0.130, y=0.070, Y=6.00 to x=0.148, y=0.100, Y=9.80.

17. The blue ink of claim 1, further comprising one or more violet pigments.

18. The blue ink of claim 1, wherein the blue ink has a viscosity of between about 5 cPs and about 20 cPs at 20°

C. and a surface tension between about 22 mN/m and about 35 mN/m at 20°

C.

19. The blue ink of claim 1, further comprising one or more oligomers.

20. The blue ink of claim 19, wherein the one or more oligoiners are selected from the group consisting of aromatic monoacrylate oligomers, aliphatic diacrylate oligomers, aliphatic triacrylate oligomers, polyester acrylates, and combinations thereof.

21. The blue ink of claim 1, further comprising a wetting agent, an adhesion promoter, a defoamer, or an anti-skinning agent.

22. The blue ink of claim 1, wherein the one or more blue organic pigments are selected from the group consisting of PB 15:

6 pigments, the one or more monomers are selected from the group consisting of diacrylate esters, acrylic esters, dipentaerythritol pentaacrylates, and combinations thereof, the one or more polymeric dispersants are selected from the group consisting of polymeric amides, polyesters, polyacrylic acid polymers, acrylic acid/maleic acid copolymers, or combinations thereof, and the one or more organic solvents are selected from the group consisting of acetates, alcohols, propionates, ketones, and combinations thereof.

2. A blue ink comprising:

one or more blue organic pigments selected from the group consisting of PB 15;

6 pigments;

one or more monomers selected from the group consisting of diacrylate esters, acrylic esters, dipentaerythritol pentaacrylates, and combinations thereof;

one or more polymeric dispersants selected from the group consisting of polymeric amides, polyesters, polyacrylic acid polymers, acrylic acid/maleic acid copolymers, or combinations thereof;

one or more organic solvents selected from the group consisting of acetates, alcohols, propionates, ketones, and combinations thereof;

a wetting agent selected from the group consisting of silicone polyether acrylates, polyamine amides, and polyesters;

an adhesion promoter selected from the group consisting of trifunctional acrylate esters, trifunctional methacrylate esters, organic titanates, and zirconates;

a defoamer selected from the group consisting of foam destroying polymers and polysiloxanes; and

an anti-skinning agent selected from the group consisting of phenolic anti-oxidants, oximic anti-oxidants, anti-oxidants that are free of phenols and oximes, and combinations thereof.

3. A blue ink comprising:

one or more blue organic pigments;

one or more violet pigments, wherein the ratio of the total wt % of the one or more blue organic pigments to the total wt % of the one or more violet organic pigments is between about 30;

1 and about 10;

1;

one or more monomers;

one or more polymeric dispersants;

one or more organic solvents; and

one or more additives selected from the group consisting of a wetting agent, an adhesion promoter, a defoamer, an anti-skinning agent, and combinations thereof, wherein the blue ink has a chromaticity of x=0.130, y=0.070, Y=6.00 to x=0.148, y=0.100, Y=9.80.

4. The blue ink of claim 3, wherein the total wt % of the one or more blue organic pigments and the one or more violet pigments is between about 5 wt % and about 30 wt %, and the blue ink comprises between about 5 wt % and about 30 wt % of the one or more monomers, between about 5 wt % and about 15 wt % of the one or more polymeric dispersants, and between about 40 wt % and about 70 wt % of the one or more organic solvents.

5. The blue ink of claim 4, wherein the blue ink further comprises between about 1 wt % and about 15 wt % of one or more oligomers.

6. A blue ink comprising:

one or more blue organic pigments;

one or more violet pigments, wherein the ratio of the total wt % of the one or more blue organic pigments to the total wt % of the one or more violet organic pigments is between about 30;

1 and about 10;

1;

one or more monomers;

one or more polymeric dispersants;

one or more organic solvents; and

one or more additives selected from the group consisting of a wetting agent, an adhesion promoter, a defoamer, an anti-skinning agent, and combinations thereof, wherein the blue ink comprises about 12 wt % blue organic pigments, about 0.9 wt % violet pigments, about 18 wt % monomers, about 9.5 wt % polymeric dispersants, about 49 wt % organic solvents, about 0.4 wt % wetting agent, about 3 wt % adhesion promoter, about 0.5 wt % defoamer, and about 6.5 wt % photo-initiators.

7. A method of forming a display, comprising:

dispensing a blue ink onto a substrate with an inkjet printing apparatus, wherein the blue ink comprises;

one or more blue organic pigments;

one or more monomers;

one or more polymeric dispersants; and

one or more organic solvents, wherein the blue ink has a chromaticity of x=0.130, y=0.070, Y=6.00 to x=0.148, y=0.100, Y=9.80.

8. The method of claim 7, wherein the blue ink further comprises one or more violet pigments.

9. The method of claim 8, wherein the ratio of the total wt % of the one or more blue organic pigments to the total wt % of the one or more violet pigments is between about 30:

1 and 10;

1, and the blue ink further comprises one or more additives selected from the group consisting of a wetting agent, an adhesion promoter, a defoamer, an anti-scratch agent, and combinations thereof.

10. The method of claim 7, wherein the one or more blue organic pigments are selected from the group consisting of PB 15:

6 pigments, the one or more monomers are selected from the group consisting of diacrylate esters, acrylic esters, dipentaerythritol pentaacrylates, and combinations thereof, the one or more polymeric dispersants are selected from the group consisting of polymeric amides, polyesters, polyacrylic acid polymers, acrylic acid/maleic acid copolymers, and combinations thereof, and the one or more organic solvents are selected from the group consisting of acetates, propionates, alcohols, ketones, and combinations thereof.

13. The method of claim 7, further comprising curing the blue ink after it is dispensed onto the substrate.

11. A method of forming a display, comprising:

dispensing a blue ink onto a substrate with an inkjet printing apparatus, wherein the blue ink comprises;

one or more blue organic pigments selected from the group consisting of PB 15;

6 pigments;

one or more monomers selected from the group consisting of diacrylate esters, acrylic esters, dipentaerythritol pentaacrylates, and combinations thereof;

one or more polymeric dispersants selected from the group consisting of polymeric amides, polyesters, polyacrylic acid polymers, acrylic acid/maleic acid copolymers, and combinations thereof;

one or more organic solvents selected from the group consisting of acetates, propionates, alcohols, ketones, and combinations thereof,

one or more oligomers selected from the group consisting of aromatic monoacrylate oligomers, aliphatic diacrylate oligomers, aliphatic triacrylate oligomers, polyester acrylates, and combinations thereof;

a wetting agent selected from the group consisting of silicone polyether acrylates, polyamine amides, and polyesters;

an adhesion promoter selected from the group consisting of trifunctional acrylate esters, trifunctional methacrylate esters, organic titanates and zirconates

a defoamer selected from the group consisting of foam destroying polymers and polysiloxanes; and

an anti-skinning agent selected from the group consisting of phenolic anti-oxidants, oximic anti-oxidants, anti-oxidants that are free of phenols and oximes, and combinations thereof.

12. A method of forming a display, comprising:

dispensing a blue ink onto a substrate with an inkjet printing apparatus, wherein the blue ink comprises;

one or more blue organic pigments;

one or more monomers;

one or more polymeric dispersants; and

one or more organic solvents, wherein the blue ink comprises about 12 wt % blue organic pigments, about 0.9 wt % violet pigments, about 18 wt % monomers, about 9.5 wt % polymeric dispersants, about 49 wt % organic solvents, about 0.4 wt % wetting agent, about 3 wt % adhesion promoter, about 0.5 wt % defoamer, and about 6.5 wt % photo-initiators.

14. A display, produced by a process comprising:

dispensing a blue ink onto a substrate with an inkjet printing apparatus, wherein the blue ink comprises;

one or more blue organic pigments;

one or more monomers;

one or more polymeric dispersants; and

one or more organic solvents, wherein the blue ink has a chromaticity of x=0.130, y=0.070, Y=6.00 to x=0.148, y=0.100, Y=9.80.

15. The display of claim 14, wherein the blue ink further comprises one or more violet pigments.

16. The display of claim 15, wherein the ratio of the total wt % of the one or more blue organic pigments to the total wt % of the one or more violet organic pigments is between about 30:

1 and about 10;

1, and the blue ink further comprises one or more oligomers and one or more additives selected from the group consisting of a wetting agent, an adhesion promoter, a defoamer, an anti-skinning agent, and combinations thereof.