Display device

Electric lamp and discharge devices: systems – Plural power supplies – Plural cathode and/or anode load device

Reexamination Certificate

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Details

C313S309000, C345S080000

Reexamination Certificate

active

10931120

ABSTRACT:
To detect a dark current when an abnormal discharge occurs between an anode and respective electrodes, on an inner surface of a front substrate, a dark current detection electrode is formed in a state that the dark current detection electrode is positioned adjacent to the outside of a screen display region on which an anode is formed and on a plane substantially equal to a plane on which the anode is formed. Then, between an electrode terminal of the dark current detection electrode and a ground, an ammeter which detects the flow of a dark current and a DC power source having a preset voltage value which is more or less lower than a high voltage supplied to the anode are connected in series.

REFERENCES:
patent: 5760535 (1998-06-01), Moyer et al.
patent: 6281621 (2001-08-01), Nakamoto et al.
patent: 6373174 (2002-04-01), Talin et al.
patent: 6632116 (2003-10-01), Watanabe et al.
patent: 6707437 (2004-03-01), Kuno et al.
patent: 6936972 (2005-08-01), Takeuchi et al.
patent: 10-134701 (1997-10-01), None
patent: 2000-306508 (1999-04-01), None

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