Title :
Influence of Cell Size on Discharge Characteristics in ac-PDPs With HD and full-HD Resolution
Author :
Park, Ki-Hyung ; Tae, Heung-Sik ; Seo, Jeong Hyun
Author_Institution :
PDP Adv. Dev. Group, LG Electron., Gumi, South Korea
Abstract :
The influence of plasma display panel (PDP) cell size on discharge characteristics is investigated in 50-in high-definition (HD) and full-HD (FHD) ac-PDPs using experiments and a 2-D simulation. When increasing the resolution of the 50-in PDP from HD to FHD, the discharge volume in a cell was reduced, yet the phosphor area per unit area was not reduced. The comparative experimental results showed a decreased luminous efficacy and IR efficiency for the FHD test panel of about 25%-29% and 26%-29%, respectively, indicating that the decreased luminous efficacy was mainly due to a decreased discharge efficiency, rather than the phosphor area. Meanwhile, the simulation results revealed that the degradation of the vacuum ultraviolet efficiency in the FHD cells was due to a decrease in the electron heating efficiency and Xe-excitation efficiency of the electrons. Specifically, the decrease in the electron heating efficiency was more critical, which was related to a smaller discharge space and shorter discharge path.
Keywords :
brightness; discharges (electric); plasma displays; plasma heating; 2D simulation; AC plasma display panel; FHD cells; IR efficiency; cell size effects; discharge characteristics; electron heating efficiency; full HD AC-PDP; high definition AC-PDP; luminous efficacy; phosphor area; vacuum ultraviolet efficiency degradation; xenon excitation efficiency; Cathodes; Discharges; High definition video; Image resolution; Partial discharges; Plasma displays; 2-D simulation; Cell size; full high definition (FHD); luminous efficiency; plasma display panels (PDPs); resolution;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2010.2072936
