Color cathode ray tube

Details Color cathode ray tube Color cathode ray tube

2005-08-23

2005-08-23

Williams, Joseph (Department: 2879)

Electric lamp and discharge devices

Cathode ray tube

Envelope

C220S00210R

Reexamination Certificate

active

06933668

ABSTRACT:
A cathode ray tube according to an embodiment of the present invention includes a panel having an effective screen; a funnel connected to the panel; and an electron gun to generate electron beams. The effective screen has a horizontal and vertical ratio of 16:9; and the panel satisfies a condition: [(Δy/d)×100)≦5.65, wherein d is length from a central point G to a diagonal vertex E of the effective screen, and Δy is length from a point H to an intersection point of the outline of the panel and the shorter axis Y, the point H being intersection of shorter axis Y and a longer side of the effective screen.

REFERENCES:
patent: 6307314 (2001-10-01), Sano
patent: 6608454 (2003-08-01), Shimizu et al.
patent: 6693374 (2004-02-01), Tho et al.

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