Novel Triode-Type Field Emission Arrays and Appropriate Driving Method for Flat Lamp Using Carbon Nanofibers Grown by Plasma Enhanced Chemical Vapor Deposition

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概要

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• We investigated new triode-type field emission arrays (FEAs) and an appropriate driving method in a lower plane (cathode plate) for a flat lamp applicable to backlight units (BLUs) in liquid crystal display (LCD). The proposed triode-type FEAs were designed with a gate and cathode on the same lower plane without distinction, and a ‘swap-gate driving’ method was applied to obtain field emission uniformity and a longer emitter lifetime. A 3-in.-diagonal flat lamp for a LCD BLU was fabricated using carbon nanofibers grown by plasma-enhanced chemical vapor deposition at approximately 480 °C. A white-phosphor luminance of 10,000 cd/m2 was obtained when the gate-voltage amplitude, gate frequency, and duration time were 230 Vamp, 25 kHz, and 2.0 μs, respectively, with an anode voltage of 10 kV and an anode-cathode spacing of 10 mm.

• 2007-07-15

著者

• Joo Seung-ki

  School Of Material Science And Engineering Seoul-national University

• Sung Woo-Yong

  School of Mechanical and Aerospace Engineering and the Institute of Advanced Aerospace Technology, Seoul National University, Sillim-dong, Gwanak-gu, Seoul 151-742, Republic of Korea

• Kim Yong-Hyup

  School of Mechanical and Aerospace Engineering and the Institute of Advanced Aerospace Technology, Seoul National University, Sillim-dong, Gwanak-gu, Seoul 151-742, Republic of Korea

• Yoo Hyeong-Suk

  School of Materials Science and Engineering, College of Engineering, Seoul National University, Seoul 151-744, Korea

• Joo Seung-Ki

  School of Materials Science and Engineering, College of Engineering, Seoul National University, Seoul 151-744, Korea

• Yoon Seung-Jai

  School of Materials Science and Engineering, College of Engineering, Seoul National University, Seoul 151-744, Korea

• Sung Woo-Yong

  School of Mechanical and Aerospace Engineering, Seoul National University, Seoul 151-744, Korea

• Kim Yong-Hyup

  School of Mechanical and Aerospace Engineering, Seoul National University, Seoul 151-744, Korea

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