한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
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A High-Speed and High-Accurate Common Source Type Analog Buffer Circuit Using LTPS TFTs for TFT-LCDs

  • Kim, Hyun-Wook (Division of Electrical and Computer Engineering, Hanyang University) ;
  • Byun, Chun-Won (Division of Electrical and Computer Engineering, Hanyang University) ;
  • Kwon, Oh-Kyong (Division of Electrical and Computer Engineering, Hanyang University)
  • Published : 2007.08.27
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Abstract

A high-speed and accurate analog buffer is proposed for mobile display using LTPS TFTs. The proposed analog buffer is common source type with sampling and negative feedback mode. Therefore, driving speed of the proposed buffer is faster than previously reported one. In addition, the accuracy is very high because of high negative feedback gain. The simulation results show that maximum mischarging voltage of the proposed buffer is 8mV and previously reported one is 37mV. And Power consumption of the proposed buffer is $43.1{\mu}W$, which is 73% of previously reported one.

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