Implementation of a Low Power and Reduced EMI Signaling Circuit For a LCD Controller-to-Source Driver Interface

  • Choi, Chul-Ho (ASIC Lab, Dept. of Control and Instrumentation Eng. Hanyang Univ.) ;
  • Choi, Myung-Ryul (ASIC Lab, Dept. of Control and Instrumentation Eng. Hanyang Univ.)
  • Published : 2000.01.13

Abstract

We propose a signaling circuit that can reduce power consumption and Electromagnetic Interference (EMI) in a Liquid Crystal Display (LCD) controller-to-source driver interface. The proposed signaling circuit consists of a coder/decoder that can minimize temporal bit transitions in a transmission line and a current-mode driver that can convert voltage swing into a very small amount of current. We have simulated the proposed signaling circuit using the HSPICE and the proposed signaling circuit has been designed in a 0.25 ${\mu}m$ CMOS technology.

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