Composition Modulation of Dot-matrix Display Grayscale

Dot-Matrix 디스플레이의 PWM방식과 PAM방식의 혼합 계조표현 법

  • 황선남 (단국대학교 전자공학과) ;
  • 정용민 (단국대학교 전자공학과) ;
  • 이준영 (단국대학교 전자공학과)
  • Published : 2006.09.30

Abstract

In this paper, a composition modulation of Dot-matrix display grayscale is presented. There's two method of expression of Dot-matrix Display grayscale. One is PWM by controlling pulse width. The other is PAM by controlling pulse amplitude. Composition modulation of Dot-matrix use PWM and PAM together. Composition modulation shows the number of grayscale as number of grayscale of PWM$\times$number of grayscale of PAM and have the effect of reduced size than existing single modulation.

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