Cathode ray tube
AssigneeSamsung Display Devices Co., Ltd.
InventorsBong-woo Lee, Sang-hyuk Yoon
Life of this patent
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Abstract
A cathode ray tube includes a rectangular panel on which a phosphor screen is formed, a neck in which an electron gun assembly for emitting three electron beams is disposed, and a funnel formed contiguous to both the neck and the panel, and having a deflection yoke mounting portion on which a deflection yoke is mounted. The cross section of the deflection yoke mounting portion fulfills the following condition at the panel side end of the deflection yoke mounting portion. 1.0≦rh/rv≦1.3 where rh is a diameter of the funnel directed to a direction of a long axis of the panel, and rv is a diameter of the funnel directed to a direction of a short axis of the panel.
Claims10
A cathode ray tube comprising:
- a rectangular panel on which a phosphor screen is formed;
- a neck in which an electron gun assembly for emitting three electron beams is disposed;
- and
- a funnel formed contiguous to both the neck and the panel, and having a deflection yoke mounting portion on which a deflection yoke is mounted, wherein a cross section of the deflection yoke mounting portion fulfills the following condition at the panel side end of the deflection yoke mounting portion
- 1.0≦rh/rv≦1.3
- where rh is a diameter of the funnel directed to a direction of a long axis of the panel, and rv is a diameter of the funnel directed to a direction of a short axis of the panel.
A cathode ray tube comprising:
- a rectangular panel having a phosphor screen;
- a neck having an electron gun assembly disposed therein for emitting three electron beams;
- a funnel having an end contiguous to the neck, an opposite end contiguous to the panel, a deflection yoke mounting portion, and a deflection yoke mounted on said deflection yoke mounting portion, said deflection yoke mounting portion comprising a cross-section having a first diameter rh and a second diameter rv transversing the first diameter rh, wherein the cross-section at an end closest to the panel satisfies
- 1.0≦rh/rv≦1.3.
Dependencies are inferred from the claim text.