박형 디스플레이를 위한 도광판의 광학설계

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공태원;최규진;권진혁;박인식;이선묵;우동진;곽진석
Gong, Taewon;Choi, Gyu Jin;Kwon, Jin Hyuk;Park, In Shik;Lee, Sunmook;Woo, DongJin;Gwag, Jin Seog

  • 투고 : 2014.10.16
  • 심사 : 2014.10.28
  • 발행 : 2014.10.31

초록

In this paper, in order to achieve slim and light liquid crystal display, we examine the optical conditions that can obtain uniform light with higher optical efficiency over whole light guide plate (LGP) through simulation. Furthermore, to overcome the issues of hot spot in front of red, green, and blue light emitting diodes (RGB LEDs) source and non-uniform color mixing, we propose four shaped color mixing bars tied up with the LGP and check the optical characteristics of the LGP with them by simulation. Consequently, we could know the optical conditions of improving optical efficiency and optical uniformity in the LGP through the optical design. Also we confirmed that the issues of the hot spot and non-uniform color mixing in edge type LED could be solved by using the ${\bigwedge}$-shaped window color mixing bar.

키워드

Backlight;Light guide plate;Liquid crystal display;Color mixing

참고문헌

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과제정보

연구 과제 주관 기관 : 한국산업기술진흥원