Direct drive, multiplex, and passive matrix

Abstract

This chapter is dedicated to the driving of low-content displays. It gives an overview of these methods starting from the simplest, direct drive, and segmented low-content displays through multiplex passive and active matrix drives for displays with low- to mid-size resolutions. The introduction explains some of the electrical principals involved in driving a display. Later on, passive matrix addressing schemes will be described in more detail before the active matrix addressing scheme is presented. Finally, the handling of two typical low-resolution passive matrix LCD modules will be explained.