Patent ID: 8080946

Claim:
A flat discharge lamp comprising an upper substrate, a lower substrate and a discharge chamber located therebetween, wherein said discharge chamber is filled with a gas, and a plurality of first electrodes and second electrodes are disposed in pairs with each other and arranged on the exterior of said discharge chamber, in which said plurality of first electrodes and second electrodes are coupled to two terminals of an AC voltage source respectively, characterized by: said discharge chamber further having a fluorescent film; said discharge chamber being filled with an inert gas; and said flat discharge lamp further having a plurality of third electrodes arranged between said first electrodes and said second electrodes, said plurality of third electrodes being individually or simultaneously coupled to a common plane for enabling dielectrically impeded discharge in stable fashion between said first electrodes and said second electrodes, wherein said first electrodes and said second electrodes change a discharge energy via said third electrodes when conducting said dielectrically impeded discharge in said discharge chamber.