Fabrication and optical design of pyramid microstructure on the base of light guide used for the backlight module

Jee Gong Chang, Chien Wei Liu, Yu Bin Fang, Jian Ming Lu, Wang-Long Li, Shin Pon Ju

研究成果: Conference contribution

摘要

This paper proposed the pyramid microstructure (PYM) used on the base of the light guide as the micro-optical components to replace the conventional diffuser dot made by direct etching on the steel stamper. The PYM is made by MEMS technology, which uses silicon wafer as original mold of PYM and to replicate it on Ni micro-mold by using electroforming method. The effective optical design tool is used to find the optimal distribution of the PYM, which integrates the random microstructure generation scheme developed based on the molecular dynamics method and the optical commercial software. The SEM images show the intact PYM can be produced on the Si micro-mold and replicated fully on the Ni micro-mold by the electroforming process. The intact PYM on the base of the light guide can also be produced by the injection molding showing the complete transformation of the Ni micro-mold to the light guide. The luminance measurement of a 2.4 inches backlight module with 4 LEDs shows the average luminance of 4769 nit with 86.3% uniformity for the PYM on the base of light guide, which is 10% higher than that for the diffuser dot microstructure.

原文English
主出版物標題5th International Symposium on Advanced Optical Manufacturing and Testing Technologies
主出版物子標題Design, Manufacturing, and Testing of Micro- and Nano-Optical Devices and Systems
DOIs
出版狀態Published - 2010 十二月 27
事件5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Design, Manufacturing, and Testing of Micro- and Nano-Optical Devices and Systems - Dalian, China
持續時間: 2010 四月 262010 四月 29

出版系列

名字Proceedings of SPIE - The International Society for Optical Engineering
7657
ISSN(列印)0277-786X

Other

Other5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Design, Manufacturing, and Testing of Micro- and Nano-Optical Devices and Systems
國家China
城市Dalian
期間10-04-2610-04-29

    指紋

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

引用此

Chang, J. G., Liu, C. W., Fang, Y. B., Lu, J. M., Li, W-L., & Ju, S. P. (2010). Fabrication and optical design of pyramid microstructure on the base of light guide used for the backlight module. 於 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Design, Manufacturing, and Testing of Micro- and Nano-Optical Devices and Systems [76571Q] (Proceedings of SPIE - The International Society for Optical Engineering; 卷 7657). https://doi.org/10.1117/12.863358