Surface treating method for panel of image display and display thereof

An image display device and surface treatment technology, applied in the general technology of discharge tube, discharge tube coating, cathode ray/electron beam tube shell/container, etc., can solve the problem of large coating amount, poor material utilization rate, and number of processes Increase and other problems, achieve high clarity and contrast, suppress uneven coating, reduce unevenness

Inactive Publication Date: 2002-07-03
PANASONIC CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] As a method of using paint to form a coating film with less unevenness, there is a spin coating method in which the paint is spread and thinned by rotating the panel. The problem of poor material utilization due to the need for more paint than the actual coating amount
[0009] Among methods that do not use paint, methods such as CVD (Chemical Vapor Deposition), sputtering, and vacuum plating are known. Not practical for processing wide areas

Method used

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  • Surface treating method for panel of image display and display thereof
  • Surface treating method for panel of image display and display thereof
  • Surface treating method for panel of image display and display thereof

Examples

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Embodiment 1

[0049] In order to investigate the effect of this example, a film was formed on the outer surface of the panel portion of the panel using various paints, and the degree of shading of the finished film was compared for each paint. The coating conditions are that the temperature of the panel is 65°C, the spray pressure when the paint is sprayed from the nozzle is 0.4MPa, the discharge rate of the paint is 10ml / min, the distance between the panel and the nozzle is 200mm, and the scanning speed of the nozzle is 300mm / s. The nozzle scanning pitch is 12.5mm. The ambient atmosphere during coating was room temperature 22°C and humidity 56%. The nozzle used here had a ring-shaped air outlet with an outer diameter of 2.4 mm and an inner diameter of 1.5 mm around a circular paint outlet with a diameter of 0.5 mm.

[0050] For ethylene glycol, propylene glycol ether, and water that affect the surface smoothness of the film, in order to confirm the difference based on the effect of their r...

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Abstract

A face panel used for an image display device is provided efficiently at a low cost, and the face panel has functions such as antireflection and it provides images with excellent resolution and contrast. The face panel is surface-treated by forming at least one coating film by spraying on the panel a coating material including microparticles. The coating material contains a solvent of ethylene glycol, propylene glycol ether, water and an alcohol having 1-3 carbon atoms.

Description

technical field [0001] The present invention relates to a method for forming a film by spraying paint on the surface of a panel, and particularly to a method for treating the surface of a panel for image display devices such as cathode ray tubes, plasma displays, and liquid crystal displays. Background technique [0002] In an image display device such as a cathode ray tube, a liquid crystal display, or a plasma display panel, a film having functions such as antistatic properties and antireflection properties is generally formed on the surface of the panel for an image display device. [0003] For example, in the case of forming an antireflection film including an antistatic function, fine particles (generally, an average particle diameter of 0.01 μm to 0.1 μm) and a solid part such as silicon dioxide are spray-coated on the panel surface of the image display device, dried and then fired. [0004] When such a method called a spray coating method is used,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J9/20C03C17/00C09D5/24C09D7/00H01J29/89
CPCC03C2217/475C09D7/001C09D5/24H01J2209/015H01J29/896C03C17/007H01J2229/8632C09D7/20H01J9/20
Inventor 山村昌大三浦康纪铃木敦
Owner PANASONIC CORP
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