Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Design of 8-bit DAC for System on Panel using Low Temperature Poly-Si TFTs

저온 Poly-Si TFT를 이용한 System on Panel용 8-Bit DAC 설계

  • Byun, Chun-Won (Division of Electrical and Computer Engineering Hanyang University) ;
  • Choi, Byong-Deok (Division of Electrical and Computer Engineering Hanyang University)
  • 변춘원 (한양대학교 전자통신컴퓨터공학부) ;
  • 최병덕 (한양대학교 전자통신컴퓨터공학부)
  • Published : 2006.06.21
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Abstract

This paper has proposed a serial 8-bit DAC for column driver circuits of mobile displays using LTPS TFTs. The DAC circuit takes very small area by using parasitic capacitance of column lines as sampling and holding capacitors. Moreover, the proposed DAC does not need the analog buffer, because the DAC operation is performed on the column lines. For the data driver circuits of 2-inch qVGA OLED panel, the DAC area is $84um{\times}800um$ and the simulated DAC power consumption is 8.5mW with 10-V supply voltage.

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