전자공학회논문지B (Journal of the Korean Institute of Telematics and Electronics B)
- 제30B권10호
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- Pages.27-34
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- 1993
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- 1016-135X(pISSN)
AC TFEL 평판표시장치의 구동회로 설계 및 구현
Design and Implementation of Driver Circuit for AC TFEL Flat Panel Display
초록
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.
키워드