METHOD AND APPARATUS FOR DEPOSITING FILMS
First Claim
1. An apparatus for depositing ink on a substrate, the apparatus comprising:
- a chamber for receiving ink;
a discharge nozzle having an inlet port and an outlet port, the discharge nozzle receiving a quantity of ink from the chamber at the inlet port and dispensing the quantity of ink from the outlet port; and
a dispenser for metering the quantity of ink from the chamber to the inlet port of the discharge nozzle;
wherein the chamber receives ink in liquid form having a plurality of suspended particles and the quantity of ink is pulsatingly metered from the chamber to the discharge nozzle; and
the discharge nozzle evaporates the carrier liquid and deposits the substantially solid particles on the substrate.
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Accused Products
Abstract
The disclosure relates to a method for depositing films on a substrate which may form part of an LED or other types of display. In one embodiment, the disclosure relates to an apparatus for depositing ink on a substrate. The apparatus includes a chamber for receiving ink; a discharge nozzle having an inlet port and an outlet port, the discharge nozzle receiving a quantity of ink from the chamber at the inlet port and dispensing the quantity of ink from the outlet port; and a dispenser for metering the quantity of ink from the chamber to the inlet port of the discharge nozzle; wherein the chamber receives ink in liquid form having a plurality of suspended particles and the quantity of ink is pulsatingly metered from the chamber to the discharge nozzle; and the discharge nozzle evaporates the carrier liquid and deposits the solid particles on the substrate.
158 Citations
27 Claims
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1. An apparatus for depositing ink on a substrate, the apparatus comprising:
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a chamber for receiving ink; a discharge nozzle having an inlet port and an outlet port, the discharge nozzle receiving a quantity of ink from the chamber at the inlet port and dispensing the quantity of ink from the outlet port; and a dispenser for metering the quantity of ink from the chamber to the inlet port of the discharge nozzle; wherein the chamber receives ink in liquid form having a plurality of suspended particles and the quantity of ink is pulsatingly metered from the chamber to the discharge nozzle; and the discharge nozzle evaporates the carrier liquid and deposits the substantially solid particles on the substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for depositing ink on a substrate, the method comprising:
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using a pulsating energy having a first frequency to meter a quantity of ink to a discharge nozzle, the ink defined by a plurality of solid particles in a carrier liquid; receiving the metered quantity of ink at the discharge nozzle and evaporating the carrier liquid from the metered quantity of ink to provide a quantity of substantially solid ink particles; dispensing the substantially solid ink particles from the discharge nozzle and depositing the substantially solid ink particles on the substrate; and wherein at least a portion of the substantially solid ink particles are converted to a vapor phase during discharge from the discharge nozzle, directed to the substrate as a vapor, and condense on a surface of the substrate in substantially solid form. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A method for depositing ink on a substrate, the method comprising:
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providing liquid ink to a chamber, the liquid ink defined by a plurality of suspended particles in a carrier liquid; pulsatingly energizing a dispenser to meter a quantity of liquid ink from the chamber to a discharge nozzle, the quantity of liquid ink metered as a function of a frequency of at least one of a pulse amplitude, a pulse duration or a pulse frequency; receiving the metered quantity of ink at a discharge nozzle, the discharge nozzle having a plurality of conduits for directing the metered quantity of ink; heating the metered quantity of ink at the plurality of conduits to evaporate the carrier liquid; and discharging the plurality of suspended particles from the discharge nozzle onto the substrate; wherein the plurality of suspended particles are deposited on the substrate in substantially solid form. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27)
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Specification