POLARIZATION SWITCHING DEVICE AND DRIVING DEVICE OF THE SAME

摘要

PURPOSE: A polarization switching device and a driving device therefor are provided to easily vary driving voltage of a polarization switching panel and to improve workability of driving voltage adjustment of the polarization switching panel. CONSTITUTION: A polarization switching device(900) includes a lower panel(910), an upper panel(930), a liquid crystal layer(920) and a driving device(800). The upper panel faces the lower panel. The liquid crystal layer is located between the lower and upper panels. The driving device applies first driving voltage and second driving voltage to the lower and upper panels, respectively. The driving device includes a symmetric voltage variation unit generates the first voltage and the second voltage based on digital data inputted to a first digital to analog converter.