A Study on an Integrated Light Guide Plate

광학시트를 제거한 복합 도광판 설계 연구

  • Lee, Yun-Mi (Department of Optical Engineering, Kongju National University) ;
  • Lee, Jun-Ho (Department of Optical Engineering, Kongju National University) ;
  • Jeon, Eun-Chae (Korea Institute of Machinery & Materials)
  • Received : 2010.02.23
  • Accepted : 2010.03.15
  • Published : 2010.04.25


An integrated light guide plate (LGP) was designed for liquid crystal displays (LCD) without using prism and diffuser sheets. The integrated LGP is textured with micro-patterns on both the top and bottom surfaces. The textures effectively substitute for a single prism-sheet and a diffuser sheet in LCD displays without decreasing the brightness and uniformity. A LCD display with our integrated light guide is simulated to give average luminance of 4560 cd/$m^2$, luminance uniformity of 83% horizontal viewing angle $60^{\circ}$ and vertical viewing angle $56^{\circ}$. Therefore an ultra thin (slim) back light unit can be constructed with fewer optical sheets, which reduces the manufacturing cost and so improves price competitiveness.


Supported by : 한국기계연구원


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