Cold cathode fluorescent flat lamp and driving method thereof

A cold cathode fluorescent flat lamp comprises a chamber, a discharge gas, a pair of first electrodes, a pair of second electrodes and a fluorescent material is provided. The chamber has a first inner surface and a second inner surface opposite to the first inner surface. The fluorescent material and the discharge gas are disposed on the inner surface of the chamber. The pairs of first and second electrodes are disposed on the first and second inner surfaces, respectively. The pair of first electrodes has a first light-emitting area. The pair of second electrodes has a second light-emitting area. The first light-emitting area is partially overlapped or completely non-overlapped the second light-emitting area foe compensating non-emitting area between the first light-emitting area and the second light-emitting area each other so as to improve the uniformity of the light emitting from the cold cathode fluorescent flat lamp.