English  |  正體中文  |  简体中文  |  Items with full text/Total items : 16926/19260 (88%)
Visitors : 7615429      Online Users : 187
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version
    Please use this identifier to cite or link to this item: http://ir.cnu.edu.tw/handle/310902800/1243


    標題: 不同厚度PDLC膜電光性質探討
    The study of different film thickness to the electro-optical properties of the PDLC film
    作者: 蕭明達
    貢獻者: 醫藥化學系
    日期: 2002
    上傳時間: 2008-06-30 14:41:52 (UTC+8)
    出版者: 台南縣:嘉南藥理科技大學醫藥化學系
    摘要: 本報告主要的目的在探討不同厚度環氧樹脂系高分子分散液晶膜(PDLC)之形態學及電光性質研究。研究內容是以二種不同當量比的環氧樹脂/熱硬化劑配法,藉由偏光顯微鏡(POM)觀察PDLC膜組成物中液晶相分離形態學,並討論液晶與樹脂基材之間的相容性。而後以五種不同間距膜厚度配上二種不同當量比的環氧樹脂/熱硬化劑之不同加工方式製成之PDLC膜,測量其電光性質(Vth、Toff、Ton),研究結果發現,以環氧樹脂/熱硬化劑(當量比)為1:1,間距膜厚度為12μm,並以室溫下冷卻所製成之PDLC膜,可獲得較理想的驅動電壓(Vth)及較佳的對比度(C.R.)。因此此顯示膜可應用於電子顯示及光控制元件上。
    We study the effects of different film thickness on the electro-optical properties and morphology of liquid crystal droplets. In this study, the phase diagram and POM (Polarized Optical Microscopy) are used to understand the miscibility of liquid crystal and epoxy resin, and the phasing out of the liquid crystal in the film as well. UV/Visible photometer is utilized to measure the electro-optical properties of the PDLC film obtained through the various processes. It is found that the PDLC film remains opaque when uncharged. As the applied voltage is higher than the threshold voltage, the film is turning into clear. In equivalent weight ratio of Epoxy/curing agent being 1/1, film thickness being 12μm and the PDLC prepared by using room temperature cured method has a low threshold voltage and better contrast ratio. This PDLC film can be utilized in making display and optical devices.
    Appears in Collections:[醫藥化學系 ] 校內計畫

    Files in This Item:

    File Description SizeFormat
    91CNAC9101.pdf200KbAdobe PDF1298View/Open


    All items in CNU IR are protected by copyright, with all rights reserved.


    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback