Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

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

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

개선된 QVGA급 LCD Driver IC의 그래픽 메모리 설계

  • 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)
  • 차상록 (충북대학교 반도체공학과) ;
  • 이보선 (충북대학교 반도체공학과) ;
  • 김학윤 (충북대학교 반도체공학과) ;
  • 최호용 (충북대학교 반도체공학과)
  • Published : 2008.06.18
Download PDF
⟨ Previous Next ⟩

Abstract

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.

Keywords