DOI QR코드

DOI QR Code

LCD 시스템을 위한 Current-Mode Multi-Valued Logic 인터페이스 회로

A Current-Mode Multi-Valued Logic Interface Circuits for LCD System

  • 황보현 (한양대학교 전자전기제어계측공학과) ;
  • 신인호 (한양대학교 전자통신공학과) ;
  • 이태희 (한양대학교 전자통신공학과) ;
  • 최명렬 (한양대학교 전자통신공학과)
  • 투고 : 2013.01.10
  • 심사 : 2013.03.13
  • 발행 : 2013.06.01

초록

In this paper, we propose interface circuits for reducing power consumption and EMI when sequences of data from LCD controller to LCD driver IC by transmitting two bit data during one clock period. The proposed circuits are operated in current mode, which is different from conventional voltage-mode signaling techniques, and also employ threshold technique of Modified-LVDS(Low Voltage Differential Signaling) method. We have simulated the proposed circuits using H-SPICE tool for performance analysis of the proposed method. The simulation results show that the proposed circuits provide a faster transmission speed and stronger noise immunity than the conventional LVDS circuits. It might be suitable for the real-time transmission of huge image data in LCD system.

키워드

참고문헌

  1. Edgar Sanchez-Sinencio, et al. Low-Voltage/ Low-Power Integrated Circuits and Systems, IEEE press, 1999.
  2. Stephen Kempainen, "BusLVDS Expands Applications for Low Voltage Differential Signaling", 2000 High-performance System Design Conference, 2000.
  3. LVDS Owner's Manual, 2nd Edition, National Semiconductor, 1997.
  4. 최명렬, 김희철 외 2명, "LCD 시스템을 위한 Modified LVDS 인터페이스 회로 및 코딩기법", 한국멀티미디어 학회 논문집, 3권 4호, pp. 424-432, 2000. 8.
  5. 최명렬, 최철호, "LCD 구동 시스템에서 전력 소비 및 전자기 장애를 줄이기 위한 데이터 코딩 방법", 정보과학회논문지, 6권 6호, pp. 628-634, 2000, 12.
  6. Transition-controlled digital encoding and signal transmission system, Patent No. 6,026,124, US patent, 2000.