Chlorosilanes are hydrolyzed to a hydrolysate in a looped system containing a hydrolysis reactor, an HCl purifier, a wash means, and a separator. At least some of the drivers may have a different drive strength and each may drive a voltage onto a respective driver output line. As a result, it is possible to improve the operating speed of the thin film transistor. The input data source may be adapted to accommodate the modulated display driving signal.