| 摘要 |
PROBLEM TO BE SOLVED: To reduce the change in the gradient of a gentle gradient waveform outputted from a drive circuit, to stabilize the discharge action of the gas discharge type display device, to shorten the application time of the gentle gradient waveform outputted from the drive circuit, and to enlarge the freedom degree of the timing design of a drive circuit, even if there are changes in loads such as change in the discharge current and dispersion of electrode floating capacity. SOLUTION: A scanning electrode drive circuit 15 is constituted of an initialization pulse generation circuit S2 having scanning/maintenance pulse generation circuits P1 -PN and a gentle gradient waveform generation circuit U2a . The gentle gradient waveform generation circuit U2a is constituted of a pull-up FETQ connecting the drain to a constant potential point +Vr(V), and a Miller integrator circuit composed of a resistance RG2a whose one end is connected to the gate of the pull-up FETQ and a capacitor CF2a connected between the gate and the drain of the pull-up FETQ. |
