Proceedings of the Korean Society for Technology of Plasticity Conference (한국소성가공학회:학술대회논문집)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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A Study on the surface characteristics of LGP mold and product depending on different fabrication methods of optical pattern

광학패턴 가공방법에 따른 LGP 금형 및 성형품의 표면특성 연구 : Laser Ablation, Chemical Etching, LiGA-Reflow 방식

  • 도영수 (한국생산기술연구원 정밀금형팀) ;
  • 김종선 (한국생산기술연구원 정밀금형팀) ;
  • 고영배 (한국생산기술연구원 정밀금형팀) ;
  • 김종덕 (한국생산기술연구원 정밀금형팀) ;
  • 윤경환 (단국대학교 기계공학과) ;
  • 황철진 (한국생산기술연구원 정밀금형팀)
  • Published : 2007.05.10
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Abstract

LGP (light guide plate) of LCD-BLU (Liquid Crystal Display - Back Light Unit) is one of the major components which affects the product quality of LCD. In the present study, the optical patterns of LGP(2.2") are manufactured by three different methods, namely, laser ablation, chemical etching and LiGA - reflow, respectively. The pattern surface images and roughness of mold and product were compared to check the optical characteristics. From the results of measurement the optical patterns fabricated by LiGA - reflow method showed the best geometric structure as intended in design and the lowest roughness among those.

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