Korean Journal of Optics and Photonics (한국광학회지)

Optical Society of Korea (한국광학회)
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Modeling for New Type Backlight Units

신개념 백라이트유닛 모델링

  • Lee, Kwang-Hoon (Department of Advanced Fusion Technology, Konkuk University) ;
  • Jee, Seung-Hyun (Department of Material Science & Engineering, Yonsei University) ;
  • Kim, Soo-Hyun (Department of Material Science & Engineering, Yonsei University) ;
  • Yoon, Young-Soo (Department of Material Science & Engineering, Yonsei University) ;
  • Kim, Soo-Ho (GS nanotech, Caltex New Energy Development Center)
  • 이광훈 (건국대학교 신기술융합학과) ;
  • 지승현 (연세대학교 신소재공학과) ;
  • 김수현 (연세대학교 신소재공학과) ;
  • 윤영수 (연세대학교 신소재공학과) ;
  • 김수호 (GS칼텍스 신에너지연구센터 GS나노텍)
  • Received : 2009.12.14
  • Accepted : 2010.03.15
  • Published : 2010.04.25
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Abstract

In order to obtain thinner and brighter backlight units (BLU), we simulated a new-type backlight unit. A micro-lens array sheet was formed on the upper plane of the light guide plate (LGP) comprising the backlight unit. Also, in order to match with the LGP, we simulated a functional optical sheet. The conventional BLU uses one LGP and four optical sheets, but we simulated a BLU that uses one optical sheet. Simulation results have revealed that our BLU can achieve the same luminance and 30% better view angle as compared with conventional ones.

백라이트유닛을 더 얇고 밝게 제안하기 위하여 우리는 새로운 타입의 백라이트유닛을 시뮬레이션하였다. 도광판 상면에 미세 볼록렌즈어레이를 형성시킨다. 또한, LGP와의 매칭을 위하여 우리는 기능성 광학 시트를 시뮬레이션하였다. 일반적으로 전통적인 백라이트유닛들은 하나의 LGP와 네 개의 광학시트를 사용해왔으나 우리는 하나의 광학시트를 사용한 백라이트유닛을 시뮬레이션하였다. 설계 결과 우리의 백라이트유닛은 동일한 발광성을 달성하면서 시야각은 30% 더 좋아진 것을 밝혀내었다.

Keywords

References

  1. M. Anandan, “LCD Backlighting,” Society for Informational Display Seminar Lecture Notes, 169-250 (2002).
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