| 摘要 |
A fluorescent lamp lighting device includes: a polarity switching circuit (5) for performing polarity switching with a low frequency (f) not greater than 20 kHz on DC input; a plurality of fluorescent lamps (71, ..., 7n) connected to the output line of the polarity switching circuit (5); a uniform flow circuit (6) formed by constant current circuits (61, ..., 6n) connected to the other end of the fluorescent lamps (71, ..., 7n) and having a transistor for supplying identical current to the respective fluorescent lamps (71, ..., 7n). Since the fluorescent lamps are turned on with the low frequency (f) not greater than 20 kHz, they are hardly affected by stray capacitance, the fluorescent lamps (71, ..., 7n) can be arranged near a chassis (8) of a display device and it is possible to prolong wiring. ( FIG. 1 )
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