Color-filter manufacturing method and apparatus, color filter, display device, and apparatus having display device
First Claim
1. A color-filter manufacturing method for manufacturing a color filter by discharging ink from an ink-jet head onto a substrate so as to form a plurality of filter elements on the substrate, comprising the steps of:
- providing the substrate;
discharging a first ink of a predetermined color from said ink-jet head, at a position for the filter elements on the substrate; and
discharging a second ink of the predetermined color from said ink-jet head in a form having a front side and a rear side, and extending in a direction from said ink-jet head to the substrate, so that the front side of the ink arrives at the substrate before the rear side of the ink is separated from the ink-jet head, and mixes with the discharged first ink.
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Accused Products
Abstract
A color-filter manufacturing method which manufactures a color filter where occurrence of color mixture and colorless portion(s) are prevented while improving ink-arrival precision in applying ink onto a substrate. The method manufactures a color filter by discharging ink from an ink-jet head IJH on a substrate 53 so as to color respective pixels with a plurality of discharge ink. When ink I2 discharged from the ink-jet head IJH is applied not in the form of ink droplet but in the form of pillar onto the substrate 53, the ink I2 is applied at a position within a pixel, where the ink I2 is to mix with previously-applied ink I1.
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Citations
10 Claims
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1. A color-filter manufacturing method for manufacturing a color filter by discharging ink from an ink-jet head onto a substrate so as to form a plurality of filter elements on the substrate, comprising the steps of:
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providing the substrate;
discharging a first ink of a predetermined color from said ink-jet head, at a position for the filter elements on the substrate; and
discharging a second ink of the predetermined color from said ink-jet head in a form having a front side and a rear side, and extending in a direction from said ink-jet head to the substrate, so that the front side of the ink arrives at the substrate before the rear side of the ink is separated from the ink-jet head, and mixes with the discharged first ink. - View Dependent Claims (2, 3)
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4. A color-filter manufacturing apparatus for manufacturing a color filter by discharging ink from an ink-jet head onto a substrate so as to form a plurality of filter elements on the substrate, comprising:
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means for arranging the substrate;
an ink-jet head for discharging ink onto said substrate; and
a driver for driving said ink-jet head so as to discharge a first ink of a predetermined color at a position for the filter elements on the substrate, and to discharge a second ink of the predetermined color in a form having a front side and a rear side, and extending in a direction from said ink-jet head to the substrate, so that the front side of the ink arrives at the substrate before the rear side of the ink is separated from the ink-jet head, and mixes with the discharged first ink. - View Dependent Claims (5)
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6. A color filter having a substrate and manufactured by discharging ink from an ink-jet head onto a substrate so as to form a plurality of filter elements on the substrate, wherein a first ink of a predetermined color is discharged from said ink-jet head at a position for the filter elements on the substrate, where a second ink of the predetermined color, that was ejected from said ink-jet head in a form having a front side and a rear side, and extending in a direction from said ink-jet head to the substrate so that the front side of the ink arrives at the substrate before the rear side of the ink is separated from the ink-jet head, is mixed with the first ink.
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7. A display device having a color filter having a substrate and manufactured by discharging ink from an ink-jet head onto a substrate so as to form a plurality of filter elements on the substrate, integrally comprising:
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a color filter colored by discharging a first ink of a predetermined color from said ink-jet head onto the substrate, at a position for the filter elements on the substrate, where a second ink of the predetermined color, that was ejected from said ink-jet head in a form having a front side and a rear side, and extending in a direction from said ink-jet head to the substrate so that the front side of the ink arrives at the substrate before the rear side of the ink is separated from the ink-jet head, is mixed with the first ink; and
light-amount change means for changing an amount of light.
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8. An apparatus comprising a display device having a color filter having a substrate and manufactured by discharging ink from an ink-jet head onto a substrate so as to form a plurality of filter elements on the substrate, integrally comprising:
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a display device integrally comprising a color filter colored by discharging a first ink of a predetermined color from said ink-jet head onto the substrate, at a position for the filter elements on the substrate, where a second quantity of ink of the predetermined color, that was ejected from said ink-jet head in a form having a front side and a rear side, and extending in a direction from said ink-jet head to the substrate so that the front side of the ink arrives at the substrate before the rear side of the ink is separated from the ink-jet head, is mixed with the first ink, and light-amount change means for changing an amount of light; and
image-signal supply means for supplying an image signal to said display device.
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9. A method for improving precision of ink-arrival positions on a color filter manufactured by discharging ink from an ink-jet head onto a substrate so as to form a plurality of filter elements on the substrate, comprising the steps of:
applying ink discharged from said ink-jet head in a form having a front side and a rear side, and extending in a direction from said ink-jet head to the substrate so that the front side of the ink arrives at the substrate before the rear side of the ink is separated from the ink-jet head, onto said substrate further comprising the step of previously applying to said substrate a first ink of a predetermined color, and wherein, in the step of applying said ink, said ink is of the predetermined color and is applied at a position within said filter elements so as to mix with the previously-applied ink.
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10. A method for reducing coloring unevenness in filter elements of a color filter manufactured by discharging ink from an ink-jet head onto a substrate so as to form a plurality of filter elements on the substrate, comprising the step of:
discharging ink from said ink-jet head in a form having a front side and a rear side. and extending in a direction from said ink-jet head to the substrate so that the front side of the ink arrives at the substrate before, the rear side of the ink is separated from the ink-jet head, the ink having a same color as that of previously-applied ink, to be applied at a position within said filter elements where the ink is to mix with the previously-applied ink.
Specification