The present invention concerns a control device (21) for a liquid crystal display cell (1) including electrodes (1.1a; 1.1b; 1.1c) forming segments and/or symbols. This device includes control means (33a; 33b; 33c) for providing control signals to said electrodes; and a matrix network of connection paths...http://www.google.com.au/patents/US6344838?utm_source=gb-gplus-sharePatent US6344838 - Control device for a liquid crystal display cell
