TY - GEN
T1 - Single DC/AC CCFL inverter for large size LCD TV with burst control
AU - Chen, S. M.
AU - Liang, T. J.
AU - Chen, J. F.
PY - 2006/12/1
Y1 - 2006/12/1
N2 - Currently, dual ac voltage sources are used in the large size LCDTV to drive long and straight CCFLs. These dual ac voltage sources are out-off phase and are applied to the two sides of CCFL to overcome non-uniformity problem. But, higher cost will be the penalty of this solution. This paper presents a novel CCFL inverter driver technology for large size LCDTV. The proposed burst control technology is capable to driving 950mm length or even longer CCFL by single voltage source. The luminance of lamp output is above 80% uniformity. Due to the negative incremental resistance of the CCFL, the leakage current flowing through the parasitic capacitor can be efficiently reduced with the proposed control scheme. Finally, a 42-inch LCD TV CCFL inverter is implemented experimentally to demonstrate the high efficacy and uniform luminance of the backlight system.
AB - Currently, dual ac voltage sources are used in the large size LCDTV to drive long and straight CCFLs. These dual ac voltage sources are out-off phase and are applied to the two sides of CCFL to overcome non-uniformity problem. But, higher cost will be the penalty of this solution. This paper presents a novel CCFL inverter driver technology for large size LCDTV. The proposed burst control technology is capable to driving 950mm length or even longer CCFL by single voltage source. The luminance of lamp output is above 80% uniformity. Due to the negative incremental resistance of the CCFL, the leakage current flowing through the parasitic capacitor can be efficiently reduced with the proposed control scheme. Finally, a 42-inch LCD TV CCFL inverter is implemented experimentally to demonstrate the high efficacy and uniform luminance of the backlight system.
UR - http://www.scopus.com/inward/record.url?scp=50249187681&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=50249187681&partnerID=8YFLogxK
U2 - 10.1109/APCCAS.2006.342173
DO - 10.1109/APCCAS.2006.342173
M3 - Conference contribution
AN - SCOPUS:50249187681
SN - 1424403871
SN - 9781424403875
T3 - IEEE Asia-Pacific Conference on Circuits and Systems, Proceedings, APCCAS
SP - 844
EP - 847
BT - APCCAS 2006 - 2006 IEEE Asia Pacific Conference on Circuits and Systems
T2 - APCCAS 2006 - 2006 IEEE Asia Pacific Conference on Circuits and Systems
Y2 - 4 December 2006 through 6 December 2006
ER -