奈米粒子對高分子分散型液晶光電特性之影響

The influence of nanoparticles on the electro - optic of polymer dispersed liquid crystal

徐銓駿(Chuan-chun Hsu)

指導教授 ： 徐芝珊

中原大學/理學院/奈米科技碩士學位學程/碩士(2016年)

https://doi.org/10.6840/cycu201600946

摘要

高分子分散型液晶利用光散射的特性，因此，不需要偏光片就可以顯示灰階的效果，光則可更有效地利用。在本研究中，我們探討在高分子分散型液晶中添加不同的奈米粒子以及改變其添加比例，可以獲得低的閾值電壓、工作電壓、及較高的對比度、較快的反應時間；但添加的奈米粒子比例過高時，會使高分子分散型液晶薄膜呈現濃度不均勻以及液晶滴顆粒過大，導致在未加電壓時，透光度上升，使整體的對比度下降。

關鍵字

奈米分子 ； 高分子分散型液晶

並列摘要

Polymer-dispersed liquid crystal (PDLC), which adopts light scattering to achieve gray levels, does not require polarizer so the light can be used efficiently. In this study, we obtained lower threshold and operating voltages, higher contrast, and less response time by doping PDLC with various nanoparticles and adjusting the doping concentrations. However, when the concentration is too high, the PDLC films show an uneven distribution of LC droplets and the droplets are also too large. When it happens, the transmittance of PDLC at zero applied voltage increases and the overall contrast decreases.

並列關鍵字

nanoparticles ； polymer dispersed liquid crystal

參考文獻

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