P-146: Dielectric Constant Measurement of Polyimide and Liquid Crystal at Low Frequency

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• 作者：Cheng-Wei Lai ; Tien-Lun Ting and Wen-Hao Hsu
• 刊名：SID Symposium Digest of Technical Papers
• 出版年：2016
• 出版时间：May 2016
• 年：2016
• 卷：47
• 期：1
• 页码：1679-1680
• 全文大小：393K
• ISSN：2168-0159

文摘

In this paper, the dielectric constants of the polyimide alignment layer PI S830 and the liquid crystals LC M367 and LC M184 are characterized by Wien-bridge oscillator and Agilent LCR meter E4980A. The lowest measurable frequencies are 0.5 Hz and 20 Hz with the oscillator and the LCR meter, respectively. Both materials show normal dielectric dispersion and the tendency is more apparent with PI S830. Extension of measurable frequency by Wien-bridge oscillator could be very helpful for the future development of low-frame-rate LCD's.