Date

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[P1-73]
14:00 ~ 15:30
Title:Alignment of LCs Using Polyimide Doped with SiO2 Nanoparticles for a High-Transmittance LCD
Byung Wok Park, Jun-Hee Park (Pusan Nat'l Univ., Korea), Ji-Hoon Lee (Chonbuk Nat'l Univ., Korea), Jonghyun Choi (The New Zealand Inst. of Plant and Food Research, New Zealand), and Tae-Hoon Yoon (Pusan Nat'l Univ., Korea)
Abstract: In this work, we demonstrate a high-transmittance LC cell fabricated by using polyimide doped with SiO2 nanoparticles. There have been many researches about doping nanoparticles into LCs or polyimide to obtain superior electro-optical characteristics in a LC device. However, doped nanoparticles have been used to reduce the response time of LCs in most of the studies. We doped nanoparticles to polyimide for homogeneous alignment of LCs and measured electro-optic characteristics of the LC cell fabricated by using substrates coated with the mixture. We confirmed that the transmittance of a LC cell fabricated using substrates coated with the mixture was higher than that of LC cells fabricated using substrates coated with pure polyimide. To analyze the result of the increased transmittance, we examined the order parameter of the fabricated cells and investigated the surface morphology of the fabricated cells using atomic force microscopy (AFM).
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