Electro-Optical Characterization of Hg-Free Fluorescent Lamps for LCD Backlight

LCD 배면광원용 무수은 형광램프의 전기.광학적 특성

  • 이순석 (선문대학교 신소재과학과) ;
  • 임성규 (단국대학교 전자공학과)
  • Published : 2006.12.28

Abstract

Hg-free fluorescent lamps were fabricated and electro-optical characterization were measured for using LCD backlight. PDP phosphors, nitro-cellulose and n-butyl acetate were mixed and coated uniformly in glass tube without stain. The glass tubes were sintered at $550^{\circ}C$ for 20 minutes, vacuumed to $10^{-6}$ torr and supplied discharge gas by using a gas mixture. After various experiment about phosphors thickness and inner diameter of glass tube, the appropriate phosphors thickness and inner diameter of glass tube were obtained. The luminance and luminous efficiency of manufactured fluorescent lamps with Ne+Xe discharge gas were $6,270cd/m^2$, 13 lm/W under 75 kHz sinusoidal wave voltage, respectively.

Keywords

LCD;Backlight;Fluorescent Lamp;Discharge and Discharge Gas