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http://dx.doi.org/10.5228/KSTP.2010.19.8.474

A Study on Design of High Luminance Hybrid LED Package and Ultra-fine Machining of Optical Pattern  

Jeon, E.C. (한국기계연구원 나노공정장비연구실)
Je, T.J. (한국기계연구원 나노공정장비연구실)
Whang, K.H. (한국기계연구원 나노공정장비연구실)
Publication Information
Transactions of Materials Processing / v.19, no.8, 2010 , pp. 474-479 More about this Journal
Abstract
Newly suggested hybrid LED package can reduce the number of LED processes and enhance light efficacy in virtue of its integrated optical patterns. Square-type pyramid pattern was chosen for the integrated optical pattern in this study, and it was proved that the pattern enhances illuminance about three times and luminance about two and half times by optical simulation. Square-type pyramid patterns of 0.02mm height and 0.04mm pitch were successively machined on a copper mold which is necessary for imprinting the integrated pattern. Hybrid LED package with integrated optical pattern will be manufactured with ultra-fine machined mold in future study.
Keywords
Hybrid LED Package; Ultra-fine Machining; Pyramid Optical Pattern;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 Daco industry research center, 2009, State-of-art and forecast of LED and LED lighting, Jinhan M&B, pp. 5-14.
2 B. Bae, 2009, Lighting LED market forecast & Korea's LED lighting industry analysis, Displaybank, pp. 37-38.
3 H. S. Jeon, P. S. Huh, 2010, Analysis of chainvalue of LED lighting industry, E-trends (ETRI), Vol. 25, No. 2, pp. 142-151.
4 E. C. Jeon et al., 2009, LED lighting apparatus having LED package integrated on circuit board and fabricating method thereof, Applied Korean Patent No. 2009-0126621.
5 T. J. Je et al., 2009, Influence upon machining accuracy of micro-pattern roll mold provessed by temperature variation, Trans. of Materials Processing, Vol. 18, No. 2, pp. 107-111.   DOI
6 Y. E Yoo et al., 2006, A study on the manufacturing of micro-patterned light guide, Proc. Kor. Soc. Pre. Eng. 2006, pp. 534-535.
7 H. R. Saghai, A. Asgari, H. B. A. Nejad, A. Rostami, 2008, A study in optical properties of AlGaN/GaN pyramid and prism-shape quantum dots, Physica E, Vol. 41, pp. 245-253.   DOI
8 N. Skoulidis, H. M. Polatoglou, 2005, Modeling the optical properties of Si-capped germanium quantum dots, Comp. Mater. Sci., Vol. 33, pp. 303-309.   DOI
9 M. Karl, D. Rulke, T. Beck, D. Z. Hu, D. M. Schaadt, H. Kalt, M. Hetterich, 2010, Reversed pyramids as novel optical micro-cavities, Superlattices and Microstructures, Vol. 47, pp. 83-86.   DOI
10 Y. M. Lee, J. H. Lee, E. C. Jeon, 2010, A study on an integrated light guide plate, Kor. J. of Optics and Photonics, Vol. 21, No. 2, pp. 53-30.   과학기술학회마을   DOI