A study on the pulse generator for CNT Lamp driving

In these days, a study on the new luminous source using CNT (carbon nanotube) is in the limelight of mass communication. The core of this study is the principle of field emission in the CNT where electrons are discharged when electric field is applied to the tip of sharp emitters in vacuum and how to drive the pulse generator system for CNT field emission. In this paper, to drive CNT Lamp, various methods are applied to CNT Lamp such as a high DC voltage generator between the anode and the cathode, a high voltage pulse generator between the anode and the cathode, and a high DC voltage generator between the anode and the cathode with a uni-polar or bi-polar pulse generator between the gate and the cathode in CNT triode. The experimental results demonstrate that the applied uni-polar or bi-polar pulse voltage between the gate and the cathode of the CNT triode have advantages over the applied DC high voltage between the anode and the cathode in the respects of brightness and efficiency