高分子穩定型液晶在頭戴式顯示器上的應用

高分子穩定型液晶以及高分子分散型液晶可製作不需使用偏光片的顯示器，因此有較佳的光使用效率。此外，垂直配向型的高分子穩定型液晶又具有較高分子分散型液晶快的反應速度，以及較低的驅動電壓，甚至有較高的對比，因此本論文第一部分以探討垂直配向型的聚合物穩定型液晶為主，調變各種實驗參數，(例如：液晶與聚合物濃度的比例、液晶盒厚度、紫外光照射的時間和照射的強度等。)分析反應時間、對比度、聚合物薄膜穩定性等的影響，並且最佳化各種參數，得到高對比低反應時間且穩定的液晶聚合物薄膜。本論文第二部分則是利用前一部分所調製的參數，將製作的高分子穩定型液晶薄膜應用在抬頭顯示器上，做出一個七段顯示器的半透式顯示器，其具有不需使用偏光片、低驅動電壓以及快速的反應時間等(10ms)的優點。

關鍵字

垂直配向型高分子穩定型液晶；高分子分散型液晶；抬頭顯示器；半透式顯示器

並列摘要

The polarizer-free displays with better light efficiency can be made, e.g. by polymer-stabilized liquid crystal (PSLC) or polymer-dispersed liquid crystal (PDLC). In general, vertically aligned (VA) PSLC has faster response time, lower driving voltage and higher contrast ratio (CR) than PDLC. Therefore, the VA PSLC film was studied in the first part of this thesis by adjusting the parameters such as LC/polymer ratio, cell gap, ultraviolet (UV) exposure time and UV intensity. By analyzing the response time, CR and the stability of the VA PSLC film, we optimized the VA PSLC parameters to get a high CR, fast response time and stable film. In the second part of this thesis, by using the optimized VA PSLC parameters, we applied the PSLC film to Head-Up Display (HUD) display applications. We made a see-through HUD without polarizer and it had fast response time and relatively low operation voltage.

並列關鍵字

Vertically Aligned Polymer-Stabilized Liquid Crystal (VA-PSLC) ； Polymer-Dispersed Liquid Crystal (PDLC) ； Head-Up Display ； See-Through Display

參考文獻

1D. K. Yang and S. T. Wu, "Fundamentals of Liquid Crystal Devices" (Wiley, New York, 2006).

8 P. S. Drzaic, "Liquid Crystal Dispersions" (World Scientific, NJ, 1995)

9 J. W. Doane, Chapter 14, Polymer dispersed liquid crystal displays, "Liquid crystals, applications and uses," Vol. 1, ed, by B. Bahadur

11 P. S. Drzaic, "Polymer dispersed nematic liquid crystals for large area displays and light valves", J. Appl. Phys. 60, 2142 (1986)

12 S. T. Wu and D. -K. Yang, "Reflective liquid crystal displays"

國際替代計量

高分子穩定型液晶在頭戴式顯示器上的應用

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