Patent attributes
A cold-cathode tube driving circuit for driving a plurality of substantially-C-shaped cold-cathode tubes, includes: a first transformer 2 having primary windings which induce voltages, and secondary windings which apply voltages of opposite polarities (−V, +V) to respective ends of the respective substantially-C-shaped cold-cathode tubes; and a second transformer 3 having third and fourth primary windings which respectively induce voltages, and third and fourth secondary windings which apply voltages of opposite polarities (−V, +V) to respective ends of the respective substantially-C-shaped cold-cathode tubes. In the cold-cathode tube driving circuit, the first and second transformers 2, 3 apply an in-phase voltage to adjacent ends of the substantially-C-shaped cold-cathode tubes.
