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http://dx.doi.org/10.3807/JOSK.2008.12.1.025

Study on the Simulation Model for the Optimization of Optical Structures of Edge-lit Backlight for LCD Applications  

Ju, Young-Hyun (Department of Physics, Hallym University)
Park, Ji-Hee (Department of Physics, Hallym University)
Lee, Jeong-Ho (Department of Physics, Hallym University)
Lee, Ji-Young (Department of Physics, Hallym University)
Nahm, Kie-Bong (Department of Physics, Hallym University)
Ko, Jae-Hyeon (Department of Physics, Hallym University)
Kim, Joong-Hyun (AMLCD Division, Samsung Electronics Co. Ltd.)
Publication Information
Journal of the Optical Society of Korea / v.12, no.1, 2008 , pp. 25-30 More about this Journal
Abstract
The optical performances of 15-inch edge-lit backlight were simulated by using a Monte Carlo ray-tracing technique. The backlight model was built by combining a wedge-type light guide plate, a diffuser sheet, a tubular fluorescent lamp with a lamp reflector, and two crossed prism sheets. Angular distributions of the luminance on each optical component obtained from simulation were consistent with those obtained from experiments on a real 15-inch backlight. The constructed backlight model was used to evaluate the optical performances of a micro-pyramid film. It was found that the on-axis luminance gain on the pyramid film is higher than that on one prism film but much lower than that on the two crossed prism films. These results suggest that a reliable simulation model can be used to develop new hybrid films and to optimize the optical structure of edge-lit backlight in order to reduce the developmental period.
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Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By Web Of Science : 12  (Related Records In Web of Science)
Times Cited By SCOPUS : 13
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1 Ji-Hee Park, Jung Ho Lee, Jin Ha Jeong, Kie-Bong Nahm, Jae-Hyeon Ko, and Joong Hyun Kim, “Optical Simulation Study on the Performances of Collimating Films for LCD Backlight Applications,” Hankook Kwanghak Hoeji, vol. 18, no. 6, pp. 4432-444, 2007   과학기술학회마을   DOI   ScienceOn
2 Breault Research Organization,“The ASAP Primer,” pp. 13-234~13-256, 2006
3 Jin Ha Jeong, Young Jin Kim, Ji-Young Lee, Ji-Hee Park, Jung Ho Lee, Kie-Bong Nahm, Jae-Hyeon Ko, and Joong Hyun Kim, (to be submitted)
4 J.-Y. Lee, K.-B. Nahm, J.-H. Ko, and J. H. Kim, “Effects of Reshaping Micro-pyramids and Prisms on the Optical Performances of Light Collimating Films in the Field of LCD Backlight,” IDW '06 Digest, pp. 941-944, 2006
5 M. Tjahjadi, G. Hay, D. J. Coyle, and E. G. Olczak, “Advances in LCD backlight film and plate technology”, Information Display, vol. 10, no. 6, pp. 22-27, 2006
6 J.-H. Park, J.-Y. Lee, and J.-H. Ko, “Enhancement of on-axis luminance of flat fluorescent lamps (FFLs) by using micro-lens arrays,” IMID2007 Digest, pp. 965-968, 2007
7 M. Anandan, “LCD Backlighting,” SID '02 Seminar Lecture Notes, p. 169 (2002). J. H. Kim et al., “Twodimensionally integrated fluorescent lamp for 40 inch LCD-TV application,” IMID '04 Tech. Digest, pp. 795-798, 2004
8 J. Ha, J. Paek, T. Jang, and J. Choi, “A new costeffective optical plate for high performance LCD-TVs,” SDI '07 Digest, pp. 46-49, 2007
9 M. H. Lee, W. T. Moon, M. J. Kim, S. K. Lee, J. S. Yoon, Y. H. Jung, B. K. Jung, H. S. Soh, and B. C. Ahn, “New light collimation film (LCF) for direct-lit BLU system,” SDI '06 Digest, pp. 503-506, 2006
10 J.-H. Ko, “Recent Research Trends in the Development of New Light Sources for the Backlight Unit of Liquid Crystal Display,” Asian J. Phys., vol. 14, pp. 231-237, 2005