Patent ID: 7250716

Claim:
A cold cathode flat fluorescent lamp, comprising: a flat lamp chamber; discharge gas, disposed in the flat lamp chamber; fluorescent substance, disposed in the flat lamp chamber; and a patterned electrode, disposed over a surface of the flat lamp chamber, the patterned electrode comprising: a plurality of anode pairs, each anode pair comprising a first meandering anode with a plurality of first protrusions, and a second meandering anode with a plurality of second protrusions, wherein the first protrusions and the second protrusions are staggered; and a plurality of cathode pairs, the cathode pairs and the anode pairs being alternately arranged, each cathode pair comprising a first meandering cathode with a plurality of third protrusions, and a second meandering cathode with a plurality of fourth protrusions, wherein each third protrusion aligns with one of the second protrusions, and each fourth protrusion aligns with one of the first protrusions.