Method of substrate treatment for manufacturing of color filters by inkjet printing systems
First Claim
1. A method of treating a glass substrate and a black matrix thereon for a flat panel display, comprising:
- exposing the glass substrate and the black matrix to a surface active compound under conditions sufficient to increase or decrease the ink-phobicity or ink-philicity of at least one member selected from the group consisting of the black matrix and an outer surface of the glass substrate that is not covered by the black matrix prior to delivery of an ink within sub-pixel wells of the black matrix.
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Accused Products
Abstract
A method for treating a glass substrate and a black matrix thereon for a flat panel display is provided. In one application, the treatment of the glass substrate and black matrix is performed prior to delivery of ink to the glass substrate by an inkjet printing system. The black matrix and glass substrate are exposed to a surface active compound. In one aspect, exposing the black matrix and the glass substrate to a surface active compound modifies the surface energy of the black matrix, the surface energy of the glass substrate, or both. In another aspect, treating the black matrix and the glass substrate enhances the formation of color filters having sub-pixel wells that have a substantially uniform distribution of ink therein.
110 Citations
26 Claims
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1. A method of treating a glass substrate and a black matrix thereon for a flat panel display, comprising:
exposing the glass substrate and the black matrix to a surface active compound under conditions sufficient to increase or decrease the ink-phobicity or ink-philicity of at least one member selected from the group consisting of the black matrix and an outer surface of the glass substrate that is not covered by the black matrix prior to delivery of an ink within sub-pixel wells of the black matrix. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. (canceled)
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11. A method of treating a glass substrate and a black matrix thereon for a flat panel display, comprising:
exposing the glass substrate and the black matrix to a surface active compound under conditions sufficient to modify the surface energy of at least one member selected from the group consisting of the black matrix and an outer surface of the glass substrate that is not covered by the black matrix prior to delivery of an ink within sub-pixel wells of the black matrix, wherein the difference between the modified surface energy of the black matrix or glass substrate and the surface energy of the ink is between about 4 dynes/cm and about 12 dynes/cm. - View Dependent Claims (12, 13, 14, 15, 16, 26)
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17. A method of treating a glass substrate and a black matrix thereon for a flat panel display, comprising:
exposing the glass substrate and the black matrix to a surface active compound under conditions sufficient to modify the surface energy of at least one member selected from the group consisting of the black matrix and an outer surface of the glass substrate that is not covered by the black matrix prior to delivery of an ink within sub-pixel wells of the black matrix, wherein the surface energy is modified such that the ratio of a drop radius of the ink on the black matrix to a drop radius of the ink on the glass substrate is changed from greater than about 1;
1 or less than about 0.8;
1 to between about 0.8;
1 and about 1;
1 after the exposure to a surface active compound.- View Dependent Claims (18, 19, 20, 21)
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22. An apparatus for treating a glass substrate and a black matrix thereon for a flat panel display, comprising:
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a vaporizer;
a source of a surface active compound connected to the vaporizer;
a heated applicator adapted to distribute a vaporized precursor comprising the surface active compound to a glass substrate and a black matrix thereon; and
a heated line connecting the vaporizer and the heated applicator. - View Dependent Claims (23, 24, 25)
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Specification