Electroluminescent display

摘要

An EL display includes first and second EL elements each having an EL photoemissive layer and a pair of electrodes provided on opposite surfaces of the EL photoemissive layer. The EL photoemissive layer of each of the first and second EL elements is enabled to emit light when a voltage applied between the electrodes of the EL element is equal to or greater than a given threshold value. A voltage feed circuit serves to apply a first ac voltage between the electrodes of the first EL element. The first ac voltage has a value being equal to or greater than the threshold value. The voltage feed circuit also serves to apply a second ac voltage between the electrodes of the second EL element in cases where photoemission of the second EL element is required. The second ac voltage has a value equal to or greater than the threshold value. The second ac voltage has a phase different from a phase of the first ac voltage. Furthermore, the voltage feed circuit serves to apply a third ac voltage between the electrodes of the second EL element in cases where photoemission of the second EL element is not required. The third ac voltage has a value smaller than the threshold value. The third ac voltage has a phase different from the phase of the first ac voltage.