Lamp driving device and display apparatus having the same

Details Lamp driving device and display apparatus having the same Lamp driving device and display apparatus having the same

2007-10-30

2009-12-15

Owens, Douglas W (Department: 2821)

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

C315S247000, C315S2090SC

Reexamination Certificate

active

07633238

ABSTRACT:
A lamp driving device includes first, second, and third voltage converters. The first voltage converter converts a direct current (DC) power voltage to a first pulse voltage. The second voltage converter converts the DC power voltage to a second pulse voltage. The third voltage converter generates a high alternating current (AC) voltage based on the first and second pulse voltages. The lamp driving device generates the high AC voltage without a transformer, so that a manufacturing cost of a display apparatus adopting the lamp driving device may be reduced.

REFERENCES:
patent: 5396155 (1995-03-01), Bezdon et al.
patent: 6072856 (2000-06-01), Van Der Broeck et al.
patent: 2004/0145584 (2004-07-01), Lee et al.
patent: 2001-093682 (2001-04-01), None
patent: 2001-118694 (2001-04-01), None
patent: 2004-327116 (2004-11-01), None

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