A color display apparatus comprises a substrate; thin film transistors formed on the substrate, each of the thin film transistors having a source electrode and a drain electrode; electroluminescence elements respectively formed over the thin film transistors and driven by the thin film transistors, each...http://www.google.co.uk/patents/US6392340?utm_source=gb-gplus-sharePatent US6392340 - Color display apparatus having electroluminescence elements
