Electrophoretic Carb on Nanotub e Field Emission Layer for Plasma Display Panels

摘要

A carbon-nanotube (CNT) electrophoretic deposition (EPD) process has been developed to pre-pare a field emission layer in plasma display panels (PDP) for discharge voltage reduction. The CNT layer as a source of discharge priming electrons has been fabricated on the PDP front panel. The balling grinding, mix-acid treatment and EPD parameters have been investigated in order to obtain good uniformity and ex-cellent field emission capability of CNT layer, in order to meet the specifications of CNTs in PDP cell. The measured turn-on field was around 1.1 V/µm in the field emission testing while the minimum sustaining voltage was decreased by 30∼40 V with the use of CNT layer in the discharge testing.