Cascading of multi-or bi-stable liquid crystal display elements in large self-organizing scalable low frame rate display boards

Abstract

The invention concerns a display board, a method of driving and a method for building low frame rate scalable display boards from special liquid crystal display devices. A liquid crystal display board comprising a number N of liquid crystal sub-displays arranged in i rows and j columns such that N=i×J, comprises a number of sections of sub-displays, each section of sub-displays comprises exactly one controller connected to a master module, the sections further comprises a number of column modules having a column driver chain and a number of row modules having a row driver chain, and the row and column driver chains is designed to provide a write signal to the corresponding row/column of the associated sub-display. The liquid crystal sub-displays preferably comprise a bi- or multi-stable liquid crystal type, preferably a smectic A liquid crystal.

Dependencies are inferred from the claim text.