High Uniformity and Tolerance Design for Direct-Lit LED Backlight Illumination Using Lagrange Interpolation

@article{Lee2016HighUA,
  title={High Uniformity and Tolerance Design for Direct-Lit LED Backlight Illumination Using Lagrange Interpolation},
  author={Tsung-Xian Lee and Bo-Song Chen},
  journal={Journal of Display Technology},
  year={2016},
  volume={12},
  pages={1403-1410}
}
This paper proposes the use of a Lagrange interpolation polynomial to meet the illumination distribution requirements of single-LED units, in both a square and a triangular arrangement, for direct-lit backlighting to obtain uniform illumination to be used for designing secondary optical lenses. In addition, we propose the use of a wider illumination coverage of LED units to achieve excellent assembly displacement tolerance. We also define an evaluation formula for combining the uniformity and… CONTINUE READING

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