Liquid application method and method of manufacturing electronic devices using the same liquid application method
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsHiroyuki Naka, Masato Mitani, Kazuto Nakajima, Nobutaka Hokazono
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Abstract
The present invention aims to form a thin coating film of even thickness within a short processing time under a curtailed consumption of coating liquid; where, a gas is spouted from nozzle 4 disposed facing to protection glass 2 of cathode ray tube, and a liquid containing fluorescent material is made to spout accompanied by the spouting gas, to be applied on protection glass 2 by shifting the positioning of protection glass 2 relative to nozzle 4 while spouting the liquid containing fluorescent material.
Claims14
A liquid application method comprising dispensing a liquid accompanied by a gas from a nozzle disposed facing an object of application, and a relative-transfer process for transferring said object of application relative to said nozzle while dispensing said liquid,
- said gas being processed so as to exhibit a laminar flow prior to engaging said liquid, said gas operative for forcing said liquid out of said nozzle at a substantially constant rate and for coating said liquid on said object of application,
- said liquid being dispensed from an opening in said nozzle that is located a greater distance from said object than an opening in said nozzle from which said gas is dispensed,
- said gas being dispensed via a tapered, arcuately shaped channel such that said gas engages said liquid substantially perpendicular to the direction of flow of said liquid.
A method of manufacturing cathode ray tubes, wherein a nozzle is disposed facing a protection glass, and a layer of fluorescent material is formed in specified areas on said protection glass by dispensing a liquid containing fluorescent material accompanied by a gas from said nozzle towards said protection glass while transferring the relative positioning between said protection glass and said nozzle, said gas being processed so as to exhibit a laminar flow prior to engaging said liquid, said gas operative for forcing said liquid out of said nozzle at a substantially constant rate,
- said liquid being dispensed from an opening in said nozzle that is located a greater distance from said object than an opening in said nozzle from which said gas is dispensed,
- said gas being dispensed via a tapered, arcuately shaped channel such that said gas engages said liquid substantially perpendicular to the direction of flow of said liquid.
A method of manufacturing optical disks, wherein a nozzle is disposed facing an optical disk substrate, and a layer of ultraviolet ray curing resin is formed on said optical disk substrate by dispensing an ultraviolet ray curing resin accompanied by a gas from said nozzle towards said optical disk substrate while shifting the nozzle from the center to outer circumference of said optical disk substrate, said optical disk substrate revolving during said dispensing of said curing resin,
- said liquid being dispensed from an opening in said nozzle that is located a greater distance from said object than an opening in said nozzle from which said gas is dispensed,
- said gas being dispensed via a tapered, arcuately shaped channel such that said gas engages said liquid substantially perpendicular to the direction of flow of said liquid.
Dependencies are inferred from the claim text.