| Title |
The Characteristics of the Discharge According to ITO Gap by the CLHS Driving Method in AC PDP |
| Authors |
신재화(Shin, Jae-Hwa) ; 최명규(Choi, Myung-Gyu) ; 김근수(Kim, Gun-Su) |
| DOI |
https://doi.org/10.5370/KIEE.2012.62.1.083 |
| Keywords |
PDP ; Long Gap ; Plasma ; Display ; Half Sustain ; CLHS |
| Abstract |
In order to reduce the power consumption in international standard IEC62087, the luminance efficiency should be improved at the low discharge load rather than at the high discharge load. Thus, this paper analysed the characteristics of the discharge at the panels with ITO Gap of 65μm, 80μm, and 100μm in 50-inch PDP with FHD resolution. It was well known that the long gap panel improves the luminance and the luminous efficiency. However, it is very difficult to drive the panel due to high driving voltage. When the normal driving method was applied at the panel with ITO gap of 100μm, the phenomenon of the double peak was generated in the sustain period. We confirmed that main factor of the double peak is the self-erasing discharge. When the CLHS driving method was applied at the panel with ITO gap of 100μm, the self-erasing discharge was improved in the sustain period. Also, the V_S and V_A minimum voltage of the CLHS driving method decreased about 9V and 12V compared with those of the normal driving method. Moreover, when the CLHS driving method was applied to the panel with ITO gap of 100μm, the luminance and the luminous efficiency increased compared with those of the normal driving method. The luminance and the luminous efficiency greatly increased at the low discharge load. The less discharge load, the higher increase rate of the luminance and the luminous efficiency. Especially, the luminous efficiency at ITO gap of 100μm increased about 26.3% at the discharge load of 4% compared with that at ITO gap of 65μm. |