CATHODE-RAY TUBE AND METHOD FOR MANUFACTURING THE SAME

Title:

CATHODE-RAY TUBE AND METHOD FOR MANUFACTURING THE SAME

Document Type and Number:

WIPO Patent Application WO/1999/066527

Kind Code:

A1

Abstract:

A cathode-ray tube has an antireflection film (4) on the outer surface of a face panel (1). The antireflection film (4) comprises a transparent conductive layer (2) containing at least either a colored ITO or a colored ATO and a coloring material having a color complementary to the color of the colored ITO or ATO and a layer (3) mainly made of SiO¿2? and formed on the transparent conductive layer (2). The particle size of the colored ITO and/or ATO ranges from 10 to 500 nm. The coloring material may be a dye having a maximum absorption peak in the wavelength band from 550 to 600 nm. The surface resistivity of the antireflection film is desirably below 1 x 10?6¿ $g(V)/sq. Such a cathode-ray tube is effectively prevented from leaking electromagnetic waves, exhibits an improved contrast, and has a preferable body color.

Inventors:

TAKAHASHI YOSHINORI (JP)
CHIGUSA HISASHI (JP)
AOKI KATSUYUKI (JP)
FUKASAWA HIROYOSHI (JP)

Application Number:

PCT/JP1999/003227

Publication Date:

December 23, 1999

Filing Date:

June 17, 1999

Export Citation:

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Assignee:

TOSHIBA KK (JP)
TAKAHASHI YOSHINORI (JP)
CHIGUSA HISASHI (JP)
AOKI KATSUYUKI (JP)
FUKASAWA HIROYOSHI (JP)

International Classes:

H01J29/86; H01J29/88; H01J29/89; (IPC1-7): H01J29/88

Foreign References:

JPH0467545A	1992-03-03
JPH0976401A	1997-03-25
JPH0986967A	1997-03-31
JPH03254049A	1991-11-13

Other References: