Title :
14-in Diagonal Size Nanotip-Enhanced Plasma Lamp in Liquid Crystal Display
Author :
Tsai, Po-Chuan ; Kim, Sung-O
Author_Institution :
Dept. of Photonics & Display Inst., Nat. Chiao Tung Univ., Hsinchu
Abstract :
The characteristics of nanotip-enhanced plasma lamps (NTL) as a backlight for liquid crystal displays have been investigated on a 14-in panel. Using a direct-current pulse bipolar waveform driving, the NTL operates with lower ignition and sustain voltages below 300 V compared with conventional plasma lamps due to the tiny discharge gap between the indium tin oxide electrode and nanotip electrodes. Luminous efficiencies of 16 lm/W at the lowest ignition voltage of 150 V have been realized for NTL, which correspond to 3780 of luminance in 260 V with 50 torr of pure xenon gas.
Keywords :
discharge lamps; liquid crystal displays; plasma devices; direct-current pulse bipolar waveform; ignition voltage; indium tin oxide electrode; liquid crystal display; microdischarge; nanotip-enhanced plasma lamp; pressure 50 torr; size 14 inch; voltage 150 V; voltage 260 V; Electrodes; Ignition; Indium tin oxide; Lamps; Liquid crystal displays; Plasma displays; Plasma properties; Plasma waves; Voltage; Xenon; LCD; Lamps; microdischarge;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2008.922942
