한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
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Design of Low-Power TFT-LCD Source Driver

  • Sung, Yoo-Chang (Div. of Electronic and Electrical Engineering, Hanyang University) ;
  • Choi, Byong-Deok (Div. of Electronic and Electrical Engineering, Hanyang University) ;
  • Kwon, Oh-Kyong (Div. of Electronic and Electrical Engineering, Hanyang University)
  • Published : 2000.01.13
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Abstract

A low-power source driver for TFT-LCDs has been proposed using the triple charge sharing method that enhances the AC power saving efficiency of the prior charge sharing method. The AC power saving efficiency of the proposed source driver reaches 66.6%. In addition, a novel OP-AMP with low-quiescent current has been developed. The measured quiescent current of the OP-AMP is $5{\mu}A{\sim}7{\mu}A$ at VDD=5V and VSS=0V with load resistance of $2k{\Omega}$ and load capacitance of 300pF.

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