Title :
Capacitive coupled electrodeless discharge backlight driven by square pulses
Author :
Cho, Guangsup ; Kwon, Nam O. ; Kim, Young M. ; Kim, Hyun S. ; Kim, Sung J. ; Kang, June G. ; Choi, Eun H. ; Guangsup Cho
Author_Institution :
PDP Res. Center, Kwangwoon Univ., Seoul, South Korea
Abstract :
Characteristic properties of backlight arraying electrodeless fluorescent lamps assembled with capacitive coupled electrode connector have been investigated in various frequencies with a switching inverter. In the backlight of a 17-in diagonal with 12 lamps driven by square pulses, the efficiency of 65/spl sim/70 lm/W and the luminance of 5000/spl sim/10 000 cd/m/sup 2/ have been achieved in the frequency range of 40/spl sim/80 kHz where the higher frequency provides the lower operating voltage in the range of 1.0/spl sim/2.0 kV.
Keywords :
brightness; electrodeless lamps; fluorescent lamps; invertors; liquid crystal displays; switching convertors; 1.0 to 2.0 kV; 17 inch; 40 to 80 kHz; LCD backlight; capacitive coupled electrode connector; capacitive coupled electrodeless discharge backlight; diagonal; efficiency; electrodeless fluorescent lamps; fluorescent lamp; frequency range; luminance; operating voltage; square pulse driven lamps; switching inverter; Assembly; Connectors; Electrodes; Fluorescent lamps; Frequency; Inverters; Light sources; Liquid crystals; Voltage;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2002.807501
