Journal of the Optical Society of Korea

  • 제13권1호
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  • Pages.152-157
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  • 2009
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  • 1226-4776(pISSN)
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  • 2093-6885(eISSN)
한국광학회 (Optical Society of Korea)
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Enhancement of the Optical Performance by Optimization of Optical Sheets in Direct-illumination LCD Backlight

  • 투고 : 2008.01.23
  • 심사 : 2009.02.25
  • 발행 : 2009.03.25
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⟨ 이전 논문 다음 논문 ⟩

초록

The structure of the prism sheet and the reflective polarizer sheet in the direct - illumination liquid crystal display (LCD) backlight is optimized and fabricated. The apex angle of the prism sheet was changed from 90 degree to 96.5 and 101.5 degree and the angular spread of the diffuser films attached on the reflective polarizer sheet was changed from 7 to 1.5 degrees. The measured view angle, the normal luminance, and the contrast ratio from the optimized backlight unit showed improved optical performances.

키워드

참고문헌

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  11. Forming Properties of Micro Random Pattern Using Micro Abrasive Paper Tool by Roll to Plate Indentation Method vol.33, pp.5, 2016, https://doi.org/10.7736/KSPE.2016.33.5.385
  12. Luminance enhancement without sacrificing the viewing angle in a direct-lit backlight by addressing the angle-dependent characteristic of the prism film vol.50, 2017, https://doi.org/10.1016/j.displa.2017.09.006
  13. Polarized backlight with constrained angular divergence for enhancement of light extraction efficiency from wire grid polarizer vol.20, pp.5, 2012, https://doi.org/10.1364/OE.20.004819
  14. A Highly Directional Light Emitting Diode Light Guide Bar Based on Concave V-Grooves vol.605-607, pp.1662-8985, 2012, https://doi.org/10.4028/www.scientific.net/AMR.605-607.2019