대한전자공학회:학술대회논문집 (Proceedings of the IEEK Conference)

대한전자공학회 (The Institute of Electronics and Information Engineers)
권호 표지

개선된 QVGA급 LCD Driver IC의 그래픽 메모리 설계

Improved Design of Graphic Memory for QVGA-Scale LCD Driver IC

  • 차상록 (충북대학교 반도체공학과) ;
  • 이보선 (충북대학교 반도체공학과) ;
  • 김학윤 (충북대학교 반도체공학과) ;
  • 최호용 (충북대학교 반도체공학과)
  • Cha, Sang-Rok (Dept. of Semiconductor Engineering Chungbuk National University) ;
  • Lee, Bo-Sun (Dept. of Semiconductor Engineering Chungbuk National University) ;
  • Kim, Hak-Yoon (Dept. of Semiconductor Engineering Chungbuk National University) ;
  • Choi, Ho-Yong (Dept. of Semiconductor Engineering Chungbuk National University)
  • 발행 : 2008.06.18
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초록

This paper describes an improved design of graphic memory for QVGA ($320{\times}240\;RGB$) - scale 262k-color LCD Driver IC. A distributor block is adopted to reduce graphic RAM area, which is accomplished with 1/8 data lines of the previous structure. In line-read operation, the drivabilty of memory array cell is improved by partitioning a word line according to the row address. The proposed graphic memory circuit has been designed in transistor level using $0.18{\mu}m$ CMOS technology library and verified using Hsim.

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