Journal of the Korean Institute of Telematics and Electronics D (전자공학회논문지D)

The Institute of Electronics and Information Engineers (대한전자공학회)
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A Video-Rate Super-Twisted Nematic (STN) Liquid Crystal DisplayUusing a New Row Signal Modulation Method

새로운 행 신호 변조 방법에 의한 고속 STN 액정표시기

  • 이승우 (한국과학기술원 전기 및 전자공학과) ;
  • 한철희 (한국과학기술원 전기 및 전자공학과)
  • Published : 1998.05.01
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Abstract

In this paper, we have proposed a new row signal modulation method in order to display multi-gray image using super-twisted nematic liquid crystal display (STN-LCD), which has no complex computation, high selection ratio, and low driving voltage. By the proposed method, we have implemented a 320*240, 8-gray video-rate STN-LCD. For achieving a video-rate STN-LCD, 6 lines are selected at a time. Each row line is selected 8 times by equally distributed pulses throughout one frame. As a result, we can get 8 gray, video-rate image. The repetive horizontal pattern and the filckering was analyzed and the improvements have been presented.

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