Browse > Article

The numerical Calculation of Simplified Light Guide Panel Model with Adjustable Optical Reflectivity  

Choi, Young-Hee (Department of Physics, College of Natural Science, Chosun University)
Ma, Hye-Joon (Department of Physics, College of Natural Science, Chosun University)
Choi, Eun-Seo (Department of Physics, College of Natural Science, Chosun University)
Shin, Yong-Jin (Department of Physics, College of Natural Science, Chosun University)
Abstract
We propose a two-layered light guiding model having partial reflectivity to predict the performance of a designed light guiding panel. A simplified inner-scatterer-based light guiding panel has a different reflectivity on each surface without any absorption. On the surface, Gaussian scattering happens at every reflection. From the simulation results, a linear pattern provided an average brightness (231 cd/$mm^2$) similar to the experimental results (211 cd/$mm^2$) under the conditions of 40 % reflectivity and 60 % transmissivity. However, in the case of a curved pattern, the simulated value has a big difference from the experimental value of 429 cd/$mm^2$. A detailed simulation and experiment for the effect of the optical reflectivity at each surface, including absorption, could provide a more exact prediction for the designed light guiding panel.
Keywords
Light guide panel; Backlight unit; Inner scatterers; Inner patterning; Scattering;
Citations & Related Records
연도 인용수 순위
  • Reference
1 T. H. Kim, S. H. Park, Y. S. Kim, E. S. Choi and Y. J. Shin, in Proceeding of the 2006 Korean Society of Laser Processing, edited by (Gwangju, Korea, 2006), p. 66
2 Y. S. Kim, T. H. Kim, S. H. Park, Y. H. Choi, E. S. Choi and Y. J. Shin, J. Korean Soc. Laser Process. 10, 29 (2007)
3 A. Horibe, M. Baba, Y. Koike and E. Nihei, IEICE Trans. Electron. E81-C, 1702 (1999)
4 Y. H. Choi, Y. J. Shin and E. S. Choi, J. Korean Phys. Soc. 56, 26 (2008)