Flat panel for use in a cathode ray tube

Electric lamp and discharge devices – Cathode ray tube – Envelope

Reexamination Certificate

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Details

C313S461000

Reexamination Certificate

active

06844668

ABSTRACT:
A flat panel of the present invention is provided with a mold match line which is formed in a manner that H2 (a distance between a first plane passing through the mold match line and a second plane tangent to an outer contour of the face portion and parallel to the first plane) satisfies the following equation: 8≦H2≦T1×2.24−D0.5×0.027 when T2 /T1≦1.5 and D≦500 mm; 8≦H2≦T1+T1/6.42−D0.5×0.027 when T2/T1≦1.5 and 500 mm<D≦670 mm; and 8≦H2 ≦T1+T1/0.856−D0.5×0.027 when T2/T1≦1.5 and D>670 mm.

REFERENCES:
patent: 20030122474 (2003-07-01), Lee

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