Optimized micro-prism diffusion film for slim-type bottom-lit backlight units

IEEE/OSA Journal of Display Technology

Volumn 7, Issue 1, 2011, Pages 3-9

  Lin, Chi Feng ^a   Fang, Yu Bin ^a   Yang, Po Hua ^a  

^a NATIONAL CENTER FOR HIGH PERFORMANCE COMPUTING   (Taiwan)

Author keywords

Bottom lit backlight unit (BLU); diffusion film; Taguchi method

Indexed keywords

APEX ANGLES; BACKLIGHT UNITS; COLD CATHODE FLUORESCENT LAMPS; FILLING DENSITY; LUMINANCE UNIFORMITY; OPTIMAL DESIGN PARAMETERS; ORTHOGONAL ARRAY; PRISM STRUCTURE; SIGNAL TO NOISE; SIGNIFICANT IMPACTS; TAGUCHI; THREE-LEVEL;

ANALYSIS OF VARIANCE (ANOVA); ASPECT RATIO; DESIGN; DIFFUSION; FILLING; FLUORESCENT LAMPS; LIGHT SOURCES; LIQUID CRYSTAL DISPLAYS; OPTIMIZATION; POLYMETHYL METHACRYLATES; PRISMS; REGRESSION ANALYSIS; TAGUCHI METHODS;

OPTICAL FILMS;

EID: 79551656245     PISSN: 1551319X     EISSN: None     Source Type: Journal    
DOI: 10.1109/JDT.2010.2081967     Document Type: Article

References (26)

1. R. Lu, S. Gauza, and S. T. Wu, "LED-lit LCD TVs," Mol. Cryst. Liq. Cryst., vol. 488, pp. 246-259, 2008.
2. F. C. Lin, L. Y. Liao, C. Y. Liao, Y. P. Huang, and H. P. D. Shieh, "Dynamic backlight gamma on high dynamic range LCD TVs," J. Disp. Te c h., vol. 4, no. 2, pp. 139-146, 2008.
3. C. C. Sun, I. Moreno, S. H. Chung, W. T. Chien, C. T. Hsieh, and T. H. Yang, "Direct LED backlight for large area LCD TVs: Brightness analysis," in Proc. SPIE 6669, 2007, p. 666909.
4. W. G. Lee, J. H. Jeong, J. Y. Lee, K. B. Nahm, J. H. Ko, and J. H. Kim, "Light output characteristics of rounded prism films in the backlight unit for liquid crystal display," J. Info. Disp., vol. 7, no. 4, pp. 1-4, 2006.
5. K. Fujisawa, I. Onishi, and Y. Fujiwara, "Edge-light backlight unit using optically patterned film," Jpn. J. Appl. Phy., vol. 46, pp. 149-199, 2007.
6. J. Lee, S. C. Meissner, and R. J. Sudol, "Optical film to enhance cosmetic appearance and brightness in liquid crystal displays," Opt. Express, vol. 15, no. 14, pp. 8609-8618, 2007.
7. Y. H. Ju, J. H. Park, J. H. Lee, J. Y. Lee, K. B. Nahm, J. H. Ko, and J. H. Kim, "Study on the simulation model for the optimization of optical structures ofedge-lit backlight for LCD applications,"J. Opt. Soc. Kor., vol. 12, no. 1, pp. 25-30, 2008.
8. C. H. Ahn and C. U. Moon, "Light diffusing film," U.S. Patent 7 218 450, May 15, 2007.
9. J. H. Lee, J. H. Jung, S. H. Yoon, J. D. Park, and K. S. Kim, "Optical member, method of fabricating the same and liquid crystal display apparatus having the same," U.S. Patent 7 375 779, May 20, 2008.
10. J. F. Graf, E. G. Olczak, G. Hay, R. Hariharan, and P. Schottland, "Bulk diffuser for flat panel display," U.S. Patent 6908 202, Jun. 21, 2005.
11. G. H. Kim, "A PMMA composite as an optical diffuser in a liquid crystal display backlighting unit (BLU)," Euro. Poly. J., vol. 41, no. 8, pp. 1729-1737, 2005.
12. H. P. Kuo, M. Y. Chuang, and C. C. Lin, "Design correlations for the optical performance of the particle-diffusing bottom diffusers in the LCD backlight unit," Powder Technol., vol. 192, pp. 116-121, 2009.
13. M. Parikka, T. Kaikuranta, P. Laakkonen, J. Lautanen, J. Tervo, M. Honkanen,M. Kuittinen, and J. Turunen, "Deterministic diffractive dif-fusers for displays," Appl. Opt., vol. 40, pp. 2239-2246, 2001.
14. S. I. Chang, J. B. Yoon, H. Kim, J. J. Kim, B. K. Lee, and D. H. Shin, "Microlens array diffuser for a light-emitting diode backlight system," Opt. Lett., vol. 31, no. 20, pp. 3016-3018, 2006.
15. J. Ha, J. Paek, T. Jang, and J. Choi, "A new cost-effective optical plate for high performance LCD-TVs," in SID'07 Dig., 2007, vol. 38, no. 1, pp. 46-49.
16. M. Tjahjadi, G. Hay, D. J. Coyle, and E. G. Olczak, "Advances in LCD backlight film and plate technology," Inf. Display, vol. 10, no. 6, pp. 22-27, 2006.
17. 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," SID'06 Digest., pp. 503-506, 2006.
18. W. Y. Lee, T. K. Lim, Y. W. Lee, and I. W. Lee, "Fast ray-tracing methods for LCD backlight simulation using the characteristics of the pattern," Opt. Eng., vol. 44, p. 014004, 2005.
19. A. G. Olabi, "Using Taguchi method to optimize welding pool of dissimilar laser-welded components," Opt. Laser Tech., vol. 40, pp. 379-388, 2008.
20. F. R. Tony and A. C. David, "Optimized selection of benchmark test parameters for image watermark algorithms based on Taguchi methods and corresponding influence on design decisions for real-world applications," in Proc. SPIE, 2003, vol. 5020, pp. 215-228.
21. K. S.Kwon and R. M.Lin, "Robust finite element model updating using Taguchi method," J. Sound Vib., vol. 280, pp. 77-99, 2005.
22. C. F. Lin, C. C. Wu, P. H. Yang, and T. Y. Kuo, "Application ofTaguchi method in light-emitting diode backlight design for wide color gamut displays," J. Display Technol., vol. 5, no. 8, pp. 323-330, Aug. 2009.
23. G. Taguchi, E. A. Elsayed, and T. Hsaing, Quality Engineering in Production Systems. New York: McGraw-Hill, 1989.
24. S. H. Park, Robust Design and Analysis for Quality Engineering. Princeton, NJ: Chapman & Hall, 1996.
25. H. H. Lee, Taguchi Methods: Principles and Practices of Quality Design. Changhua, Taiwan: Gau Lih, 2008.
26. H. Oktem, T. Erzurumlu, and I. Uzman, "Application of Taguchi optimization technique in determining plastic injection molding process parameters for a thin-shell part," Mater. Des., vol. 28, no. 4, pp. 1271-1278, 2007.