| 摘要 |
<P>PROBLEM TO BE SOLVED: To simplify circuit configuration of a plasma display device by sharing a part of a scanning electrode driving circuit corresponding to a scanning electrode group. <P>SOLUTION: In the plasma display device, a first scanning electrode driving part 60 is provided with: a downward inclination voltage generation part 61 which gradually reduces reference voltage of the first scanning electrode driving part 60; a voltage comparison part 63 which compares the reference voltage with predetermined voltage; a gate circuit 67 which fixes output of the voltage comparison part 63; and a plurality of first output parts 72(1) to 72(n-1) which output voltage to scanning electrodes belonging to the first scanning electrode group. A second scanning electrode driving part 80 is provided with: a signal transmitting part 81 which transmits output of the voltage comparison part 63 to the second scanning electrode driving part 80; and a plurality of second output parts 82(2) to 82(n) which output voltage to scanning electrodes belonging to the second scanning electrode group; and a switching element Q99 which connects reference voltage of the first scanning electrode driving part 60 with reference voltage of the second scanning electrode driving part 80. The gate circuit 67 fixes output of the voltage comparison part 63 when the third switching element Q99 is turned on/off. <P>COPYRIGHT: (C)2009,JPO&INPIT |
