한국정밀공학회:학술대회논문집 (Proceedings of the Korean Society of Precision Engineering Conference)

한국정밀공학회 (Korean Society for Precision Engineering)
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실험계획법을 이용한 도광판 레이저 마킹 및 웹기반 시스템 구축

Laser Marking for Light Guide Panel using Design of Experiment and Construction of Web-based Prototyping System

  • 강혁진 (서울대 대학원 기계항공공학부) ;
  • 김휘준 (서울대 정밀기계설계공동연구소) ;
  • 안성훈 (서울대 기계항공공학부)
  • Kang H.J. (School of Mechanical and Aerospece Engineering, SNU) ;
  • Kim H.J. (Institute of Advanced Machinery and Design, SNU) ;
  • Ahn S.H. (School of Mechanical and Aerospece Engineering, SNU)
  • 발행 : 2005.06.01
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초록

A light guide panel (LGP) is an element of the LCD back light unit, which is used for display devices. In this study, a laser marking process is applied to the fabrication of light guide panels as the new fabrication process. In order to obtain a light guide panel which has high luminance and uniformity, four principal parameters such as power, scanning speed, ratio of line gap, and number of line were selected as important factors. A Web-based design tool was developed to generate patterns of light guide panel, and the tool may assist the designer to develop optimized patterns. Topcon-BM7 was used for luminance measurement of each specimen 100mm$\times$100mm area. By Taguchi method optimized levels of each parameters such as 40W of power, 30mm/s of scanning speed, 100:50 ratio of pattern gap, and 90 line of pattern were found by Taguchi method.

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