While LEDs are the most common emissive device, other emissive devices using conjugated polymers are possible. The use of emissive polymers in devices such as light-emitting electrochemical cells, chemiluminescence cells and light-emitting transistors is described and the different design features needed to optimise their performance discussed. The use of polymers in microcavbities and lasers is discussed. While optically-pumped lasing has been demonstrated, electrically-pumped lasing form organic materials remains to be demonstrated but is not theoretically impossible. The prospects for integrated polymers devices such as optocouplers are also discussed.