Electrical and Optical properties of Xe EEFL by mixed gas

Xe EEFL의 혼합가스에 따른 전기 광학적 특성

TFT-LCD used in display area is not a light-emissive device itself but TFT-LCD can overcome through the employ of the backlight unit (BLU). BLU is very important device in TFT-LCD system. However, the old-fashion BLU of CCFL type is crucible to the health due to the contained material, mercury (Hg). Moreover, strong temperature dependency of lamp employed with Hg becomes the other disadvantage in practical usage. To solve these problems, Hg-Free lamp with strong thermal resistance property is required to displace the Hg lamp. We studied optical and electrical properties of Xe-Ne-He mixed gas that is dependent on change of mixed ratio and pressure. In our results, the designed lamp without the phosphorescent material has the lowest firing voltage at xe 50%(Ne:He=9:1).