TFT Performance Requirements for AMOLEDs towards HDTV Applications(Session A4 Thin Film Transistor)(2004 Asia-Pacific Workshop on Fundamentals and Application of Advanced Semiconductor Devices (AWAD 2004))

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概要

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• This paper thoroughly investigates the performance requirements of TFTs for 30-inch and 40-inch diagonal full-spec.(1920×1080) AMOLED HDTVs. We tried to find the minimum required mobility of TFTs to meet the pixel charging capability as well as the OLED driving current for two kinds of pixels. 0ne is a basic 2TFT-and-1 Capacitor (2T1C) pixel, and the other is a 5TFT-and-1Capacitor (5T1C) pixel proposed for compensating the Vth variations. For this purpose, we found the pixel circuit design methods for minimizing the required mobility with various design parameters, and carefully constitute the panel modeling. Thorough SPICE simulations reveal that the TFT mobility for 30-inch and 40-inch HDTV is 1.65cm^<2/>Vs and 1.35cm^<2/>Vs respectively for the 2T1C pixel, and 0.78cm^<2/>Vs and 1.O0cm^<2/>Vs for the 5T1C pixel.

• 社団法人電子情報通信学会の論文
• 2004-06-23

著者

• Kwon Oh-kyong

  Division Of Electrical And Computer Engineering Hanyang University

• Kwon Oh-Kyong

  Division of Electrical and Computer Engineering, Hanyang University

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