Cathode ray tube including a funnel with a non-circular shaped funnel yoke portion
AssigneeLG. Philips Displays Korea Co., Ltd.
InventorsJae-Seung Baek, Ryo-Hyang Kim
Life of this patent
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Abstract
A cathode ray tube includes a panel, a funnel and a funnel yoke portion having a non-circular-shaped vertical section. When a diagonal portion thickness on a certain vertical section between a reference line and a neck line is Td and a long side portion thickness at the same vertical section is Th, a glass structure of a cathode ray tube satisfies 0.5<Th/Td<1.01. When a diagonal portion thickness at a top round is Dt′, a long side portion thickness is DS′, a short side portion thickness is DL′, a diagonal portion thickness at a reference line is Dt, a long side portion thickness is DS, and a short side portion thickness is DL, then the glass structure of a cathode ray tube satisfies 1.3≦Dt′/Dt<1.80.
Claims20
A cathode ray tube comprising a panel and a funnel including a funnel yoke portion having a non-circular-shaped vertical section, wherein a diagonal portion thickness on a certain vertical section between a reference line and a neck line is Td and a long side portion thickness at the same vertical section is Th, a glass structure of a cathode ray tube satisfies
- 0.5<Th/Td<1.01,
- wherein a long side direction thickness or a diagonal direction thickness of a yoke portion between a reference line and a neck seal line is varied as a monotonic increasing function shape and a monotonic decreasing function shape, and at least one relative maximum and one relative minimum exist.
A cathode ray tube comprising a panel and a funnel including a funnel yoke portion having a non-circular-shaped vertical section, wherein a diagonal portion thickness on a certain vertical section between a reference line and a neck line is Td;
- a long side portion thickness at the same vertical section is Th;
- a diagonal portion thickness at a top of round is Dt′;
- a long side portion thickness is DS′;
- a short side portion thickness is DL′;
- a diagonal portion thickness at a reference line is Dt;
- a long side portion thickness is DS, a short side portion thickness is DL;
- a glass structure of a cathode ray tube satisfies
- 1.3≦Dt′/Dt<1.80.
A cathode ray tube comprising:
- a panel and a funnel including a funnel yoke portion having a non-circular-shaped vertical section, and a diagonal portion thickness on a certain vertical section between a reference line and a neck line is Td, a long side portion thickness at the same vertical section is Th, wherein a glass structure of a cathode ray tube satisfies
- 0.5<Th/Td<0.8.
A cathode ray tube comprising a panel and a funnel including a funnel yoke portion having a non-circular-shaped vertical section, wherein a diagonal portion thickness on a certain vertical section between a reference line and a neck line is Td and a long side portion thickness at the same vertical section is Th, a glass structure of a cathode ray tube satisfies
- 0.5<Th/Td<1.01,
- wherein the glass structure of the cathode ray tube satisfies
- Th<Tv
- when a section portion thickness at the same vertical section is Tv.
Dependencies are inferred from the claim text.