Patent ID: 8928646
Filing Date: 2015-01-06
Classification: G09G,H01J,H05B

Abstract:
1. A plasma display apparatus having a plurality of capacitive loads and a driving circuit, comprising: a driving power source directly connected to a resistor along a first path, the driving power source supplies a drive voltage to the capacitive load; a reference potential terminal supplying a reference potential to the capacitive load along a second path; and a drive IC having: a first input terminal directly connected to the resistor and receiving an input from the driving power source via the resistor along the first path, the drive IC distributing power to the capacitive load along a third path, a second input terminal directly coupled to the reference potential terminal, first and second switching devices, the first switching device being coupled to the first input terminal, and the second switching device being coupled to the second input terminal, and an output terminal, connected to each of the first and second switching devices, which selectively outputs the drive voltage or the reference potential by switching the first and second switching devices, wherein each of the first and second switching devices has two main terminal and a control terminal and an electrical connection state between the two main terminals is turned ON/OFF according to signals inputted to the control terminal, wherein one of the two main terminals of the first switching device is directly coupled to the first input terminal and the other of the two main terminals of the first switching device is coupled to the output terminal, one of the two main terminals of the second switching device is directly coupled to the second input terminal and the other of the two main terminals of the second switching device is coupled to the other of the terminals of the first switching device and the output terminal, and the drive voltage and the reference potential are selectively supplied t the capacitive load via the output terminal according to control signals inputted to control terminals of the first and second switching devices, wherein the drive IC includes one each of the first input terminal and the second input terminal, n (n is an integer larger than or equal to 2) each of the first and second switching devices and the output terminals, and each of the n sets of the first and second driving devices and the output terminals correspond to each of n loads of the capacitive loads, and the drive voltage is supplied to each of the plurality of capacitive loads corresponding to each of the n sets from the driving power source via the resistor, the first input terminal, the each first switching device of the n sets, and the output terminal, each of the first switching device and the second switching device is formed of one transistor, and a drive voltage is supplied to one of the two main terminals of the one transistor forming the first switching device via the resistor and a first input terminal in the first path and the first input terminal.