The invention provides a liquid crystal display device that includes an IGZO-GDM which can quickly remove a residual charge in a panel when the power supply is turned off, and a driving method of the liquid crystal display device. The first and second discrete components can be adjacent to one another in the semiconductor substrate, and an integrated circuit die can be mounted on the semiconductor substrate and coupled to the first and second discrete components. An antivirus unit scans at least part of the disk space for viruses. The system may include an electrical cable coupled to the PCB base plate for supplying power, control, and IO to the ion optic assembly and the signal processing electronics.