Journal of the Semiconductor & Display Technology (반도체디스플레이기술학회지)

The Korean Society Of Semiconductor & Display Technology (한국반도체디스플레이기술학회)
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Black Matrix with Scattering Particles for the Enhancement of Visibility of Laser Beam

레이저 빔 시인성 향상을 위한 산란입자가 분산된 Black Matrix

  • Park, June Buem (Dept. of Information and Communication engineering, Chosun University) ;
  • Shin, Dong-Kyun (School of Electrical & Electronic & Communication Engineering Korea University of Technology and Education) ;
  • Han, Seun Gjo (Dept. of Information and Communication engineering, Chosun University) ;
  • Park, Jong-Woon (School of Electrical & Electronic & Communication Engineering Korea University of Technology and Education)
  • 박준범 (조선대학교 정보통신공학과) ;
  • 신동균 (한국기술교육대학교 전기.전자.통신공학부) ;
  • 한승조 (조선대학교 정보통신공학과) ;
  • 박종운 (한국기술교육대학교 전기.전자.통신공학부)
  • Received : 2017.11.27
  • Accepted : 2017.12.21
  • Published : 2017.12.31
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Abstract

With an attempt to enhance the visibility of laser beam, we have investigated a black matrix with scattering particles by ray tracing simulations. As the scattering particle density is increased, the detected power by the receiver is increased, thereby enhancing the visibility. In reality, the visibility is reduced with increasing incident angle (away from the normal incidence) of laser beam, a phenomenon also observed by ray tracing simulations. It is due to the fact that the mean path is increased within a highly absorptive BM layer or a smaller number of rays hit the BM area when the incident angle is high. Embedding a number of scattering particles into BM may bring in crosstalk among pixels. However, it is negligible because scattered rays inside highly absorptive BM are re-scattered due to the high scattering particle density, decreasing the power of scattered rays into the active areas.

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