Electric lamp and discharge devices: systems – Current and/or voltage regulation
Reexamination Certificate
2007-02-14
2011-12-27
Tan, Vibol (Department: 2819)
Electric lamp and discharge devices: systems
Current and/or voltage regulation
C315S312000, C315S294000, C315S307000, C313S607000, C313S268000, C362S097100
Reexamination Certificate
active
08084957
ABSTRACT:
An illuminating apparatus used for a display device includes a plurality of illuminating units, each of which includes a first feeding member, a second feeding member, and a cold-cathode tube lamp that is fed by a power supply apparatus via the first and second feeding members. An equivalent circuit of each illuminating unit is a series combination of negative resistor and a capacitor connected to an end of the negative resistor. The illuminating units are arranged such that the capacitors of the cold-cathode tube lamps are alternate in position. This can reduce the brightness gradient for the position in the tubular axis direction of the lamp.
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Keating & Bennett LLP
Sharp Kabushiki Kaisha
Tan Vibol
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