BLACK MATRIX COMPOSITIONS AND METHODS OF FORMING THE SAME

• US 20080026302A1
• Filed: 04/10/2007
• Published: 01/31/2008
• Est. Priority Date: 07/28/2006
• Status: Abandoned Application

• Current Assignee: Applied Materials Incorporated
• Original Assignee: Applied Materials Incorporated
• Inventors: Shang, Quanyuan, Zhou, Ligui
• Application Number:
  US11/733,665
• Publication Number:
  US 20080026302A1
• Time in Patent Office: Days
• US Class Current: 430/7
• CPC Class Codes: G03F 7/0007 Filters, e.g. additive colour filters; Components for display devices
• CPC Class Codes: G03F 7/0046 with perfluoro compounds, e.g. for dry lithography G03F7/0048 takes precedence
• CPC Class Codes: G03F 7/027 Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds G03F7/075 takes precedence
• CPC Class Codes: G03F 7/0757 Macromolecular compounds containing Si-O, Si-C or Si-N bonds G03F7/0752 takes precedence

Abstract

Black matrix compositions, methods for forming a black matrix, and apparatus for use in forming a color filter for a flat-panel display are disclosed. The compositions, methods and apparatus use an additive including polymerizable molecules, the polymerizable molecules each including polar portions and non-polar portions. The non-polar portions are ink-phobic and migrate toward the surface of the black matrix composition upon the surface being exposed to activation energy. The polar portions of the polymerizable molecules are ink-philic relative to the non-polar portions. Numerous other features are disclosed.

Claims

1. A black matrix composition for use in forming a color filter for a flat-panel display, comprising:

an additive including polymerizable molecules, the polymerizable molecules each including polar portions and non-polar portions, and wherein the non-polar portions are ink-phobic.

2. The black matrix composition of claim 1 wherein the non-polar portions of the polymerizable molecules migrate toward a surface of the black matrix composition upon the surface being exposed to an activation energy.

3. The black matrix composition of claim 1 wherein the polar portions of the polymerizable molecules are ink-philic relative to the non-polar portions.

4. The black matrix composition of claim 1 wherein the additive includes at least one of:

a fluorinated acrylate monomer;

a fluorinated acrylate oligomer;

a silicone-group-contained acrylate monomer;

a silicone-group-contained acrylate oligomer;

a hydrophobic-group-contained acrylate monomer;

a hydrophobic-group-contained acrylate oligomer;

reactive wax; and

fluorosilanes.

5. The black matrix composition of claim 1 further comprising at least one of:

a pigment dispersion;

an initiator;

a polymerizable monomer or oligomer;

a binder resin; and

a solvent.

6. The black matrix composition of claim 1 wherein the black matrix composition includes the additive in a concentration range from approximately 100 parts per million by weight to approximately 10,000 parts per million by weight of the black matrix composition not including any solvent.

7. The black matrix composition of claim 1 wherein the additive has a molecular weight in a range from approximately 100 Mw to approximately 100,000 Mw weight average molecular weight.

8. A coated substrate for use in forming a color filter for a flat-panel display, comprising:

a substrate; and

a layer of black matrix composition formed on the substrate, wherein the black matrix composition includes polymerizable molecules, the polymerizable molecules each including polar portions and non-polar portions, and wherein the non-polar portions are ink-phobic.

9. The coated substrate of claim 8 wherein the non-polar portions of the polymerizable molecules migrate toward a surface of the black matrix composition upon the surface being exposed to an activation energy.

10. The coated substrate of claim 8 wherein the polar portions of the polymerizable molecules are ink-philic relative to the non-polar portions.

11. The coated substrate of claim 8 wherein the polymerizable molecules include at least one of:

a fluorinated acrylate monomer;

a fluorinated acrylate oligomer;

a silicone-group-contained acrylate monomer;

a silicone-group-contained acrylate oligomer;

a hydrophobic-group-contained acrylate monomer;

a hydrophobic-group-contained acrylate oligomer;

reactive wax; and

fluorosilanes.

12. The coated substrate of claim 8 wherein the black matrix composition further comprises at least one of:

a pigment dispersion;

an initiator;

a polymerizable monomer or oligomer;

a binder resin; and

a solvent.

13. The coated substrate of claim 8 wherein the black matrix composition includes the polymerizable molecules in a concentration range from approximately 100 parts per million by weight to approximately 10,000 parts per million by weight of the black matrix composition not including any solvent.

14. The coated substrate of claim 8 wherein the polymerizable molecules have a molecular weight in a range from approximately 100 Mw to approximately 100,000 Mw weight average molecular weight.

15. A method of forming a color filter for a flat-panel display, comprising:

forming a black matrix composition including polymerizable molecules, the polymerizable molecules each including polar portions and non-polar portions, and wherein the non-polar portions are ink-phobic;

providing a substrate;

forming a layer of the black matrix composition on the substrate; and

applying activation energy to the black matrix composition on the substrate.

16. The method of claim 15 wherein forming a black matrix composition further includes forming a black matrix composition in which the non-polar portions of the polymerizable molecules migrate toward a surface of the black matrix composition in response to applying activation energy to the black matrix composition.

17. The method of claim 15 wherein forming a black matrix composition further includes forming a black matrix composition in which the polar portions of the polymerizable molecules are ink-philic relative to the non-polar portions.

18. The method of claim 15 wherein forming a black matrix composition further includes forming a black matrix composition in which the polymerizable molecules include at least one of:

a fluorinated acrylate monomer;

a fluorinated acrylate oligomer;

a silicone-group-contained acrylate monomer;

a silicone-group-contained acrylate oligomer;

a hydrophobic-group-contained acrylate monomer;

a hydrophobic-group-contained acrylate oligomer;

reactive wax; and

fluorosilanes.

19. The method of claim 15 wherein forming a black matrix composition further includes forming a black matrix composition in which the black matrix composition further comprises at least one of:

a pigment dispersion;

an initiator;

a polymerizable monomer or oligomer;

a binder resin; and

a solvent.

20. The method of claim 15 wherein forming a black matrix composition further includes forming a black matrix composition in which the polymerizable molecules are present in a concentration range from approximately 100 parts per million by weight to approximately 10,000 parts per million by weight of the black matrix composition not including any solvent.

21. The method of claim 15 wherein forming a black matrix composition further includes forming a black matrix composition in which the polymerizable molecules have a molecular weight in a range from approximately 100 Mw to approximately 100,000 Mw weight average molecular weight.

22. The method of claim 15 wherein applying activation energy to the black matrix composition includes applying electron beam radiation to the black matrix composition.

23. The method of claim 15 further comprising patterning a matrix in the black matrix composition.

24. The method of claim 23 wherein applying activation energy to the black matrix composition includes polymerizing the black matrix composition such that a top surface of the matrix is ink-phobic and side surfaces of the matrix are ink-philic.