반도체디스플레이기술학회지 (Journal of the Semiconductor & Display Technology)

한국반도체디스플레이기술학회 (The Korean Society Of Semiconductor & Display Technology)
권호 표지

분자동역학 모델을 이용한 도광판 랜덤패턴 생성 알고리즘

Random Pattern Generation Algorithm for Light Guides using Molecular Dynamics Model

  • 이지영 (한국기술교육대학교 기계공학부) ;
  • 박승경 (한국기술교육대학교 기계공학부)
  • Lee, Ji Young (Korea University of Technology and Education, School of Mechanical Engineering) ;
  • Park, Seungkyung (Korea University of Technology and Education, School of Mechanical Engineering)
  • 투고 : 2019.11.20
  • 심사 : 2019.12.09
  • 발행 : 2019.12.31
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초록

Microstructure pattern generation on light guides in backlight unit (BLU) is an essential process for designing flat panel display, but efficient designing algorithm is still limited to achieve uniform luminescence while maintaining fully random distribution to avoid interference effects. In this study, a molecular dynamics model based pattern generation algorithm has been developed. The proposed algorithm allows a fast and efficient distribution of patterns at specified density within the user-defined computational cells, and its efficiency and performance has been demonstrated with sample cases.

키워드

참고문헌

  1. Lee, W. Y., Lim, T-K., Lee, Y-W., and Lee, I-W., "Fast ray-tracing methods for LCD backlight simulation using the characteristics of the pattern", Optics Engineering, Vol. 44, pp. 014004, 2005. https://doi.org/10.1117/1.1814358
  2. Huang, B-L., Guo, T-L., "Fast optimization method based on the diffuser dot density for uniformity of the backlight module", Applied Optics, Vol. 55, pp. 1494-1499. https://doi.org/10.1364/AO.55.001494
  3. Park, S. R., Kwon, O. J., Shin, D., Song, S-H., Lee, H-S., and Choi, Y. H., "Grating micro-dot patterned light guide plates for LED backlights", Optics Express, Vol. 15, pp. 2888-2899, 2007. https://doi.org/10.1364/OE.15.002888
  4. Lee, G., Jeong, J. H., Yoon, S-J., and Choi, D-H., "Design optimization for optical patterns in a lightguide panel to improve illuminance and uniformity of the liquid-crystal display", Optical Engineering, Vol. 48, pp. 024001, 2009. https://doi.org/10.1117/1.3083290
  5. Kim, N. Y., Kim, H. J., Kim, D. W., Jo, J. H., and Kim, S. W., "Preparation and Characteristics of PC and PMMA-Based Diffusers for LED Backlight Unit", Journal of the Semiconductor and Display Technology, Vol. 11, pp. 21-27, 2012.
  6. Kim, M. S., and Cho, U. R., "A study of pattern formation of ultra definition display panel applying phosphoric acid", Journal of the Semiconductor and Display Technology, Vol. 13, pp. 13-19, 2014.
  7. Chang, J-G., and Fang, Y-B., "Dot-pattern design of a light guide in an edge-lit backlight using a regional partition approach", Optics Engineering, Vol. 46, pp. 043002, 2007. https://doi.org/10.1117/1.2721423
  8. Ide, T., Mizuta, H., Numata, H., Taira, Y., Suzuki, M., Noguchi, M., and Katsu, Y., "A novel dot-pattern generation to improve luminance uniformity of LCD backlight", Journal of the Society for Informational Display, Vol. 11, pp. 659-665, 2003. https://doi.org/10.1889/1.1825693
  9. Ide, T., Mizuta, H., Numata, H., Taira, Y., Suzuki, M., Noguchi, M., and Katsu, Y., "Dot pattern generation technique using molecular dynamics", Journal of Optical Society of America, A, Vol. 20, pp. 248-255, 2003. https://doi.org/10.1364/JOSAA.20.000248
  10. Chang, J-G., Su, M-H., Lee, C-H., and Hwang, C-C., "Generating random and nonoverlapping dot patterns for liquid-crystal display backlight light guides using molecular-dynamics method", Journal of Applied Physics, Vol. 98, pp. 114910, 2005. https://doi.org/10.1063/1.2138802