| 摘要 |
PROBLEM TO BE SOLVED: To provide a driving circuit of a surface light emitting element capable of decreasing the luminance stabilization period of time and improving the low-temperature starting properties by optimizing a starting voltage and current and limiting power by a product to which a flat fluorescent lamp (surface light emitting element) is applied, and a method of driving the same. SOLUTION: The driving circuit of the surface light emitting element comprises: an inverter controller 41 which feeds back a current supplied to the surface light emitting element and compares the feedback current to a reference value to control the current supplied to the surface light emitting element; a temperature sensing part 32 for sensing an operation temperature of the surface light emitting element; and a driving condition determining control part 42 which determines a driving condition on the basis of the operation temperature sensed in the temperature sensing part 32 and varies the feedback current to be inputted to the inverter controller 41 according to each driving condition. COPYRIGHT: (C)2008,JPO&INPIT |
