| 摘要 |
PROBLEM TO BE SOLVED: To provide a drive device and a drive method for a charge-storage luminous element capable of keeping luminous brightness constant, even if working temperature varies. SOLUTION: This device is equipped with a drive-voltage applying means 5 for applying a drive voltage to a charge-storage luminous element 1, a drive- current limiting means 2 for limiting a drive current supplied by the drive voltage to the luminous element, a voltage detecting means 3 for detecting a voltage between two electrode terminals of the luminous element, and a voltage control means 4 for controlling the value of the drive voltage. The voltage control means controls the value of the drive voltage in accordance with a detection result, as a space charge voltage by the voltage detecting means. |
