An electroluminescent (EL) display apparatus comprising: a display screen including: a plurality of gate signal lines ; a plurality of source signal lines ; and a plurality of pixels arranged in a matrix, each pixel corresponding to an intersection of the plurality of gate signal lines and the plurality of source signal lines , wherein each pixel includes: an EL device including an anode terminal and a cathode terminal, the cathode terminal being connected directly to a constant common reference voltage; a driving transistor to flow a current to the EL device ; a first switch transistor provided on a current path through which the current flows from a power line through the driving transistor to the EL device ; a second switch transistor to supply, to the driving transistor , an image signal supplied from one of the plurality of source signal lines ; and a third switch transistor provided between the anode terminal of the EL device and a reverse bias voltage line , the reverse bias voltage line configured to supply a reverse bias voltage (Vm) for reverse biasing the anode terminal of the EL device ; wherein during a reverse biasing period, the reverse bias voltage, which is a negative voltage relative to the constant common reference voltage, is supplied to the anode terminal of the EL device , and wherein both during the reverse biasing period and during a lighting state period of the EL device , the constant common reference voltage is supplied to the cathode terminal of the EL device . a display screen including: a plurality of gate signal lines ; a plurality of source signal lines ; and a plurality of pixels arranged in a matrix, each pixel corresponding to an intersection of the plurality of gate signal lines and the plurality of source signal lines , a plurality of gate signal lines ; a plurality of source signal lines ; and a plurality of pixels arranged in a matrix, each pixel corresponding to an intersection of the plurality of gate signal lines and the plurality of source signal lines , wherein each pixel includes: an EL device including an anode terminal and a cathode terminal, the cathode terminal being connected directly to a constant common reference voltage; a driving transistor to flow a current to the EL device ; a first switch transistor provided on a current path through which the current flows from a power line through the driving transistor to the EL device ; a second switch transistor to supply, to the driving transistor , an image signal supplied from one of the plurality of source signal lines ; and a third switch transistor provided between the anode terminal of the EL device and a reverse bias voltage line , the reverse bias voltage line configured to supply a reverse bias voltage (Vm) for reverse biasing the anode terminal of the EL device ; an EL device including an anode terminal and a cathode terminal, the cathode terminal being connected directly to a constant common reference voltage; a driving transistor to flow a current to the EL device ; a first switch transistor provided on a current path through which the current flows from a power line through the driving transistor to the EL device ; a second switch transistor to supply, to the driving transistor , an image signal supplied from one of the plurality of source signal lines ; and a third switch transistor provided between the anode terminal of the EL device and a reverse bias voltage line , the reverse bias voltage line configured to supply a reverse bias voltage (Vm) for reverse biasing the anode terminal of the EL device ; wherein during a reverse biasing period, the reverse bias voltage, which is a negative voltage relative to the constant common reference voltage, is supplied to the anode terminal of the EL device , and wherein both during the reverse biasing period and during a lighting state period of the EL device , the constant common reference voltage is supplied to the cathode terminal of the EL device . <EOS>