DOI QR코드

DOI QR Code

A Study on the Fabrication Method of Micro-Mold using 2.2inch LGP by the SCS Micro-Lens Pattern

SCS Micro-lens 패턴 적용 휴대폰 도광판 제작용 미세금형 제작에 대한 연구

  • 오정길 ((주)마이크로몰드 부설연구소) ;
  • 김종선 (한국생산기술연구원 금형기술센터) ;
  • 윤경환 (단국대학교 기계공학과) ;
  • 황철진 ((주)마이크로몰드 부설연구소)
  • Received : 2010.12.27
  • Accepted : 2011.01.14
  • Published : 2011.02.01

Abstract

BLU(back light unit) is one of kernel parts of LCD(liquid crystal display) unit. New 3-D micro-lens pattern for LGP(light guide plate), one of the most important parts of LCD-BLU, had been researched. Instead of dot pattern made by chemical etching or laser ablation, SCS(slanted curved surface) micro-lens pattern was designed with optical CAE simulation. This study introduce the method of design using optical CAE simulation for SCS micro-lens, the new fabrication method of micro-mold with SCS micro-lens pattern.

Keywords

References

  1. T. Nagahara, A. Fukui, 2001, Light-Guide plate for Liquid Crystal Display, Matsushita Tech. J., Vol. 47, pp. 2-6.
  2. Y. S. Do, J. S. Kim,Y. B. Ko, J. D. Kim, K. H. Yoon, C. J. Hwang, 2007, A Study on the Surface Characteristics of Injection Mold and Injection Molded Part depending on LGP-Mold Fabrication Methods, Trans. Mater. Process, Vol. 16, pp. 596- 602. https://doi.org/10.5228/KSPP.2007.16.8.596
  3. C. J. Hwang, J. S. Kim, Y. B Ko, Y. M. Heo, 2005, Development of Micro-Optical patterned LCD-LGP Mold using Inclined-Exposure Process, Annual Meeting of Trans. Kor. Soc. Mech. Eng., pp. 1522-1525.
  4. K. Y. Hung, H. T. Hu, F. G. Tseng, 2004, Application of 3D glycerol-compensated inclined-exposure technology to an integrated optical pick-up head, J. Micromech. Microeng., Vol. 14, pp. 975-983. https://doi.org/10.1088/0960-1317/14/7/019
  5. C. J. Hwang, Y. B. Ko, S. Y. Ha, G. H. Lee, Y. M. Heo, 2005, Micro injection Mold Fabrication with modified LiGA Microlens Pattern and its application to LCD-BLU, 21st Annual Meeting of the Polymer Process Soc.
  6. Y. S. Do, C. J. Hwang, K. H. Yoon, 2007, A Study on the Improvement of Optical Efficiency for The 2 inch LGP Considering Injection Molding Characteristics, Trans. Mater. Process, Vol. 17, pp. 322-327. https://doi.org/10.5228/KSPP.2008.17.5.322