Driving device for matrix-type display panel using guest-host type phase transition liquid crystal

摘要

A driving device for a matrix-type display panel using a guest- host type liquid crystal made by adding a pleochroic dye to a nematic- cholesteric phase transition liquid crystal or a chiralnematic phase transition liquid crystal is disclosed in which the display plane of a display panel is divided into a plurality of blocks in such a manner that each block includes a plurality of scanning lines, that is, a plurality of regions are formed, only one of the regions is selected to be used a scanning region, the one-line-at-a-time scanning operation is repeated many times in the scanning region in order to write and display information to perfection, and the regions are selected successively and cyclically to be used as the scanning region.