한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
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A Low-Power and High-Accuracy Driving Method for LTPS TFT-LCD in Mobile Applications

  • Kim, Han-Jun (Division of Electrical and Computer Engineering, Hanyang University) ;
  • Jung, Jae-Yoon (Division of Electrical and Computer Engineering, Hanyang University) ;
  • Choi, Jung-Hwan (Division of Electrical and Computer Engineering, Hanyang University) ;
  • Lee, In-Hwan (Division of Electrical and Computer Engineering, Hanyang University) ;
  • Kwon, Oh-Kyong (Division of Electrical and Computer Engineering, Hanyang University)
  • Published : 2006.08.22
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Abstract

A high data accuracy and low power consumption driving method and output stage of the source driver are proposed for the LTPS TFT-LCD in mobile applications. The proposed driving method is insensitive to the variations of the electrical characteristics of TFTs, which enables the output errors of the source driver are under 1/2 LSB in all gray levels. In addition, the power consumption of the driver with the method is decreased to 9.9mW which is 55.9% of that of the conventional source driver by reducing unnecessary charge waste.

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