Predicting performance of reflective metallic wire-grid polarizer application in LCDs
Advances in size and view angle performance of LCD displays has propelled their application beyond single viewer, battery powered devices. Large view angle, multi-viewer displays have renewed emphasis on efficient management of light distribution in LCD backlights. The prism-based brightness enhancement films (BEF) is no longer ideal and requires additional polarization conversion brightness recycling film continue to improve and show promise not only for enhancing the viewing experience, but also in reducing cost. This paper systemically characterized and theoretically analyzed the performance of bilayer (or stacked) metallic nanowire. For a 200nm pitch double layer metallic nanowire structure, simulations results show that transmission efficiency over 70％ and extinction ratios higher than 400:1 for the full visible light spectrum can be achieved. A 4cmX4cm, 180nm pitch, with the depth 100nm, duty cycle equals to 0.5 double layer metallic nanowire sample was fabricated by the nanoimprinting technologies, the optical measurement results present good polarization separation characters, however, the extinction ratio is as low as only 10:1, this is because the worse overlay effect of aluminum, which should be improved in our feature work.
brightness enhancement film extinction ratio double layer metallic nanowire
H. Q. Cui T.C. Chung Tean-Sen Jen Z.C. Ye H. Q. Cui W. Hu X.W. Lin Y.Q Lu
LCD R&D Center, Infovision Optoelectronics Corp, KunShan, &Jiangsu (FVO) Flat Panel Display Technolo National Engineering Lab of TFT-LCD Material and Technologies, Shanghai Jiao Tong University,Shangha Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing, 210093, China
国际会议
China Display/Asia Display 2011(2011年中国显示/亚洲显示会议)
江苏昆山
英文
352-355
2011-11-07（万方平台首次上网日期，不代表论文的发表时间）