To raise contrast ratio of a display image to raise image display quality.
This plasma display device includes: a scanning electrode drive circuit 43 having a Miller integration circuit 55 which is an inclined waveform generation circuit which generates inclined waveform voltage which gradually rises; and a lighting ratio detection circuit in the initialization period of at least one subfield of one field period, wherein the scanning electrode drive circuit 43 has a photo coupler PC 3 which is a switching element for switching supply voltage provided to the Miller integration circuit 55, generates first inclined waveform voltage and second inclined waveform voltage with reaching potential lower than that of the first inclined waveform voltage, and switches the first inclined waveform voltage and the second inclined waveform voltage to be generated from the Miller integration circuit 55 on the basis of the lighting ratio output from the lighting ratio detection circuit by switching conduction and interception of the photo coupler PC3.
Hiroki Naito
Daisuke Nagano
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