| 摘要 |
PURPOSE:To obtain the driving circuit of the matrix display device which has simple circuit constitution and drives a display panel by a single write power source with superior symmetry of an applied voltage waveform. CONSTITUTION:Driver ICs 4, 2, and 3 of function constitution including switch circuits with a push-pull function are provided exclusively for a column-side electrode and a row-side electrode, and a modulation power source Vm is connected between the pull-up side common line and pull-down side common line of the driver IC 4; while the driver IC 4 and modulation power source Vm are placed in floatable states, capacitive elements of the thin film EL display device 1 are applied with both a plus and a minus pulse voltage and AC voltages which are equal or symmetrical in at least one of the period, width, pulse interval, and amplitude of the pulses having both the polarities.
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