Electroluminescence on OpenDrop

Due to the very similar control and layer setup of electrowetting and electroluminescence the OpenDrop digital  microfluidics platform can also be used to drive electroluminescence. Electroluminescence (EL) is an optical phenomenon and electrical phenomenon in which a material emits light in response to the passage of an electric current or to a strong electric field.

The layer setup of electroluminescence is very similar to an electrowetting on dielectric setup. By simply filling the air gap where usually the liquid would sit with phosphor and driving the electrode with AC voltage, the device can be turned into an electroluminscence display.

On the OpenDrop V3 all 128 electrodes can be activated individual with AC voltages and will light up as dots when coated with phosphor as shown in the video below.

The phosphor used is from GWENT GROUP, High Brightness White Phosphor.