Fast numerical Fourier analysis of moiré pattern induced by a periodic metallic array on top of the microscopically patterned red-green-blue light sources

M. Pournoury, A. Zamiri, T. Y. Kim, V. Yurlov, Kyunghwan Oh

Research output: Contribution to journalArticle

1 Citation (Scopus)


An accurate and fast moiré pattern analysis algorithm is proposed for a periodic metallic array placed adjacent to a patterned red-green-blue (RGB) light source with a microscopic gap utilizing Fourier transform along with the human eye contrast sensitivity function. We analyzed how the moiré pattern evolved varying tilt angles and metal array periodicities placed on the top of RGB light sources, which have their own spatial periodicities. Based on multiplicative model, moiré patterns were numerically generated and the influences of 70 tilt angles and 60 periodicities on the moiré standard deviation were thoroughly analyzed to minimize moiré visibility. Our numerical results were compared to a prior analytical approach to obtain a good agreement, and the proposed scheme can be further applied to larger scale display systems with sophisticated touch screen metal arrays.

Original languageEnglish
Pages (from-to)8044-8052
Number of pages9
JournalApplied Optics
Issue number27
Publication statusPublished - 2018 Sep 20


All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering

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