Improvement of Light Guide Panel Performance by Laser Patterning

레이저 가공에 의한 백라이트 도광판 성능 향상

  • Kim, Y.S. (Laser Imaging Laboratory, Chosun University) ;
  • Kim, T.H. (Laser Imaging Laboratory, Chosun University) ;
  • Park, S.H. (Laser Imaging Laboratory, Chosun University) ;
  • Choi, Y.H. (Laser Imaging Laboratory, Chosun University) ;
  • Choi, E.S. (Laser Imaging Laboratory, Chosun University) ;
  • Shin, Y.J. (Laser Imaging Laboratory, Chosun University)
  • 김영섭 (조선대학교 자연과학대학, Laser Imaging Laboratory) ;
  • 김태훈 (조선대학교 자연과학대학, Laser Imaging Laboratory) ;
  • 박소희 (조선대학교 자연과학대학, Laser Imaging Laboratory) ;
  • 최영희 (조선대학교 자연과학대학, Laser Imaging Laboratory) ;
  • 최은서 (조선대학교 자연과학대학, Laser Imaging Laboratory) ;
  • 신용진 (조선대학교 자연과학대학, Laser Imaging Laboratory)
  • Published : 2007.03.31

Abstract

We propose a novel application of laser engraving to patterning of light guide panel (LGP) for backlight. The feasibility of three-dimensional engraved pattern in the LGP was verified by measuring brightness and uniformity. To improve the overall uniformity, we have modified proposed patterns and found improved design for patterns. The tailoring of pattern by using laser engraving method could endow the controllability of uniformity. The proposed LGPs are more efficient in both average brightness and uniformity of illumination than the conventional LGPs which have surface pattern on the panel.

Keywords