SID Symposium Digest of Technical Papers · 2001 · 14 citations · 0 references
EngineeringElectrical EngineeringOptical MaterialsOptoelectronicsPhotonicsArtificial Lighting SystemsDisplay TechnologiesEnergy-efficient LightingLighting ElectronicsBacklightingBrightness ImprovementFluorescent LampsInverter DesignLuminancePower Efficiency
Abstract The planar luminaries with the external electrode fluorescent lamps arrayed on a flat panel for the LCD‐backlight have been improved by driving with the square pulses from a single switching inverter. With the square pulses of the driving frequency about 30 kHz, the high efficiency up to 40–70 lm/W and high brightness up to 30,000 cd/m 2 along with the luminance uniformity 90% in the 15‐inch, 18‐inch, 21‐inch diagonal panels, respectively, could be obtained.