한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
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Design of Low Power TFT-LCD Data Driver and Analog Buffer for Mobile Devices

  • Kim, Joon-Hoon (Division of Electrical and Computer Engineering, Hanyang University) ;
  • Kim, Seong-Joong (Division of Electrical and Computer Engineering, Hanyang University) ;
  • Shim, Hyun-Sook (Division of Electrical and Computer Engineering, Hanyang University) ;
  • Kwon, Oh-Kyong (Division of Electrical and Computer Engineering, Hanyang University)
  • Published : 2003.07.09
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Abstract

This paper describes two kind of new concept for low power consumption for small area TFT-LCDs. First, the proposed analog buffer could reduce the static current by adopting new scheme. Second, new data driver structure reduced DC power consumption by reducing the number of operational amplifier (op-amp). As simulation results of Hspice, the quiescent current of proposed analog buffer is less than $0.8{\mu}A$ and the DC power consumption is reduced about $40{\sim}50%$ compared with conventional ones.

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