Journal of the Korean Institute of Telematics and Electronics B (전자공학회논문지B)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Design and Implementation of Driver Circuit for AC TFEL Flat Panel Display

AC TFEL 평판표시장치의 구동회로 설계 및 구현

  • 오건창 (고려대학교 전자공학과) ;
  • 김명식 (금오공과대학 전자통신공학과) ;
  • 권용무 (한국과학기술연구원) ;
  • 오명환 (한국과학기술연구원) ;
  • 김덕진 (고려대학교 전자공학과)
  • Published : 1993.10.01
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Abstract

In this paper, a driver system is designed and implemented to achieve 4-level gray scale CH TFEL(Thin Film ElectroLuminescent) flat panel display. To implement the driver system, commercial EL driver IC chips are used to apply high voltage pulses to the EL panel and a high voltage switching circuit is designed for the EL driver IC. A new method of reducing storage delay time of transistor is proposed to obtain a reliable switching circuit. The controller for EL driver and switching circuit is also designed. The designed driving scheme applicable to EL display with 4-level gray scale is based on the linear characteristics of brightness vs. frequency of AC TFEL. By experiment, it has been shown that the brightness of AC TEFL display with the implemented driving system is controlled by the level of gray scale.

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