EP0354465A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Color filter and cathode-ray tube using the color filter
Assignee: Toshiba Corp
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Filing: 1989-08-02
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Granted: —
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Expires: 2009-08-02
Abstract
Abstract A color filter (9) comprising a vitreous material including at least one kind of organic compound having visible light absorbing properties, and at least one metallic compound selected from the group consisting of a Ni compound and a Co compound. A given dye can be used in the color filter (9) of this invention as the organic compound. Thus, the hue of the color filter (9) is freely selectable. In addition, high light resistance can be attained by sealing the organic compound in the vitreous material in the presence of the metal compound.
Inventors
- 👤 Takeo Intellectual Property Division Itou
- 👤 Hidemi Intellectual Property Division Matsuda
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 09:43
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/86; H01J29/89; H01J29/898; G; G02; G02B; G02B5/00; G02B5/20; G02B5/22
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
40 words
A color filter (9) comprising a vitreous material including at least one kind of organic compound having visible light absorbing properties, and at least one metallic compound selected from the group consisting of a Ni compound and a Co compound.
Claim 2
Dependent Claim
40 words
A color filter (9) comprising a vitreous material including at least one kind of organic compound having visible light absorbing properties, and at least one metallic compound selected from the group consisting of a Ni compound and a Co compound.
Claim 3
Dependent Claim
24 words
The color filter (9) according to claim 1, characterized in that said vitreous material is coated on an inorganic substrate by an alcoholate method.
Claim 4
Dependent Claim
20 words
The color filter (9) according to claim 1, characterized in that said vitreous material contains SiO₂ as a main component.
Claim 5
Dependent Claim
27 words
The color filter (9) according to claim 1, characterized in that the weight ratio of the added metallic compound to the organic compound is 0.05 to 10.
Claim 6
Dependent Claim
27 words
The color filter (9) according to claim 1, characterized in that the weight ratio of the added metallic compound to the organic compound is 0.2 to 6.
Claim 7
Dependent Claim
41 words
The color filter (9) according to claim 1, characterized in that said Ni compound is at least one compound selected from the group consisting of Ni(NO₃)₂·6H₂O, NiCl₂·6H₂O, NiF₂, NiBr₂, NiI₂, NiSO₄, Ni(CH₃COO)₂·4H₂O, nickelbis(octylphenyl)sulfide, [2,2′-thiobis(4-t-octylphenolate)]-n-butylaminnickel, nickel complex-3, 5-di-t-butyl-4-hydroxybenzvlphosphormonoethylate, nickeldibutyldithionacarbamate, and bis(dithiobenzyl)nickel complex.
Claim 8
Dependent Claim
33 words
The color filter (9) according to claim 1, characterized in that said Co compound is at least one compound selected from the group consisting of CoCl₂, CoF₂, CoBr₂, CoI₂, CoSO₄, Co(CH₃COO)₂·4H₂O and Co(NO₃)₂·6H₂O.
Claim 9
Dependent Claim
76 words
A cathode-ray tube (1) comprising a vacuum envelope (2) having a faceplate (5), the inner surface of which is provided with a phosphor screen (8), and a color filter (1) formed on the outer surface of said faceplate (5) and comprising a vitreous material including at least one kind of organic compound having visible light absorbing properties, and at least one metallic compound selected from the group consisting of a Ni compound and a Co compound.
Claim 10
Dependent Claim
76 words
A cathode-ray tube (1) comprising a vacuum envelope (2) having a faceplate (5), the inner surface of which is provided with a phosphor screen (8), and a color filter (1) formed on the outer surface of said faceplate (5) and comprising a vitreous material including at least one kind of organic compound having visible light absorbing properties, and at least one metallic compound selected from the group consisting of a Ni compound and a Co compound.
Claim 11
Dependent Claim
20 words
The cathode-ray tube (1) according to claim 8, characterized in that said vitreous material is formed by an alcoholate method.
Claim 12
Dependent Claim
20 words
The cathode-ray tube (1) according to claim 8, characterized in that said vitreous material contains SiO₂ as a main component.
Claim 13
Dependent Claim
20 words
The cathode-ray tube (1) according to claim 8, characterized in that said vitreous material contains TiO₂ as a main component.
Claim 14
Dependent Claim
20 words
The cathode-ray tube (1) according to claim 8, characterized in that said vitreous material contains ZrO₂ as a main component.
Claim 15
Dependent Claim
22 words
The cathode-ray tube (1) according to claim 8, characterized in that said vitreous material contains SiO₂ and TiO₂ as a main component.
Claim 16
Dependent Claim
22 words
The cathode-ray tube (1) according to claim 8, characterized in that said vitreous material contains SiO₂ and ZrO₂ as a main component.
Claim 17
Dependent Claim
27 words
The cathode-ray tube (1) according to claim 8, characterized in that the weight ratio of the added metallic compound to the organic compound is 0.005 to 10.
Claim 18
Dependent Claim
27 words
The cathode-ray tube (1) according to claim 8, characterized in that the weight ratio of the added metallic compound to the organic compound is 0.2 to 6.
Claim 19
Dependent Claim
40 words
The cathode-ray tube (1) according to claim 8, characterized in that said Ni compound is at least one compound selected from the group consisting of Ni(NO₃)₂·6H₂O, NiCl₂·6H₂O, NiF₂, NiBr₂, NiSO₄, Ni(CH₃COO)2·4H₂O, nickelbis(octylphenyl)sulfide, [2,2′-thiobis(4-t-octylphenolate)]-n-butylaminnickel, nickel complex-3, 5-di-t-butyl-4-hydroxybenzylphosphormonoethylate, nickeldibutyldithionacarbamate, and bis(dithiobenzyl)nickel complex.
Claim 20
Dependent Claim
33 words
The cathode-ray tube (1) according to claim 8, characterized in that said Co compound is at least one compound selected from the group consisting of CoCl₂, CoF₂, CoBr₂, CoI₂, CoSO₄, Co(CH₃COO)₂·4H₂O, and Co(NO₃)·6H₂O.
References Cited (Backward Citations)
No citation records indexed.
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