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 Effect of Optical Characteristics in 2 inch LCD-BLU by Aspect Ratio of Optical Pattern: II. Mold and Optical Characteristics

휴대폰용 2인치 LCD-BLU의 광특성에 미치는 광학패턴 세장비의 영향 연구 : II. 금형 및 광특성

  • 김종선 (한국생산기술연구원 정밀금형팀) ;
  • 고영배 (한국생산기술연구원 정밀금형팀) ;
  • 유재원 (한국생산기술연구원 정밀금형팀) ;
  • 민인기 (한국생산기술연구원 정밀금형팀) ;
  • 황철진 (한국생산기술연구원 정밀금형팀) ;
  • 윤경환 (단국대학교 기계공학과)
  • Published : 2006.05.11
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Abstract

LCD-BLU (Back Light Unit) is one of kernel parts of LCD unit. The fabrication method of a 3-D micro mold patterned with micro-lenses for the LGP (Light Guiding Plate), one of the most important parts of LCD-BLU, was presented. Instead of dot pattern made by etching, 3-D optical pattern design with $50{\mu}m$ micro-lens was applied in the present study. The micro-lens pattern fabricated by modified LiGA with thermal reflow process was applied to the optical design of LGP. The positive micro-lens patterned injection mold with different aspect ratios (i.e. 0.3 and 0.4) was fabricated with modified LiGA with thermal reflow process. The brightness of LCD-BLU increased as aspect ratio of micro-lens increased.

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