전기학회논문지P (The Transactions of the Korean Institute of Electrical Engineers P)

  • 제61권2호
  • /
  • Pages.93-96
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  • 2012
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  • 1229-800X(pISSN)
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  • 2586-7792(eISSN)
대한전기학회 (The Korean Institute of Electrical Engineers)
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광학시뮬레이션과 새로운 사출성형법을 사용한 TFT-LCD용 고휘도 프리즘 도광판

High Brightness Prism Light-guide Plate for TFT-LCDs Using Optical Simulation and Novel Injection Mold Process

  • 한정민 (서일대학교 전기공학과) ;
  • 손진근 (가천대학교 전기공학과)
  • 투고 : 2012.05.08
  • 심사 : 2012.05.15
  • 발행 : 2012.06.01
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초록

We have designed high performance prism light-guide plate (LGP) in 17 inch TFT-LCD. In test result to embody high brightness BLU in case of LGP of base and upper surface with 17 inch, thickness 8mm adding prism construct. Using optical simulation, we forecast the brightness and uniformity in LGP with prism structure. And we adopted novel injection mold method and Nickel stamper to make actual evolution sample. Novel injection mold process has steady heating time zone in heat cycle time of injection mold process. For this novel heat cycle control, we achieved above 90[%] height prism structure as our design. It is superior brightness improvement than previous that of printing form about some 20[%] and in this course to embody actual material it succeeded prism LGP production by 17 inch injection form process.

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참고문헌

  1. H. Zou, K. W. Beeson, J. Willson, S. Zimmerman, and M. McFarland, "Requirement and achievable backlight luminance for CRT-requirement LCD monitors", SID Digest 1997, p. 373, 1997.
  2. M. Born and Wolf, "Principles of optics", Pergamon Press 6 th. Edition, pp. 188-189, 1983.
  3. M. Gebauer, P. Benoit, P. Knoll, and M. Neiger, "Ray tracing tool for development LCD-backlights", SID Digest 2000, pp. 58-561, 2000.
  4. S. M. Lee, H. W. Choi, M. G. Lee, J. H. Min, J. S. Choi, J. H. Kim, S. I. Kim, Y. S. Choi, and K. H. Lee, "New concept for improvement of white color balance in hologram backlight units", SID Digest 2003, pp. 1361-1363, 2003.
  5. A. G. Chen, K. W. Jelly, G. T. Valliath, W. J. Molteni, P. J. Ralli, and M. M. Weyon, "Holographic reflective liquid crystal display", Journal of SID, pp. 159-163, 1995.
  6. H. J. Cornelissen, H. Greiner, and M. J. Dona, "Frontlights for reflective liquid crystal display based on lightguides with micro-grooves", SID Digest 1999, pp. 912-915, 1999.
  7. J. M. Tedesco, L. A. K. Bardy ,and W. S. Colburn, "Holographic diffuser for LCD backlights and projection screens", SID Digest 1993, pp. 29-32, 1993.
  8. T. J. Trout, William J. Gambogi, Kirk W. Stein, and Steven R. Mackara, "Volume holographic components for display applications", SID Digest 2000, (2000).
  9. K. L. Lee and K. Y. Yang, "The micro-structure and it''s arranging rules under the influence of the brightness and uniformity in light guide plate of a LED backlight module", J. Nat. Taipei Univ. Technol., ,vol. 42, no.2, pp. 37-51, 2009.
  10. C. C. Tsai and S. T.Wu, "Broadband wide-anglepolarization converter for LCD backlight", Appl. Opt.,vol. 47, no. 15/20, pp. 2882-2887, 2008. https://doi.org/10.1364/AO.47.002882
  11. J. H. Lee and H. S. Lee, "Simple liquid crystal display backlight unit comprising only a single-sheet micropatterned polydimethylsiloxane light-guide plate", Opt. Lett., vol. 32, no. 18, pp. 2665-2667, 2007. https://doi.org/10.1364/OL.32.002665