本研究提出新型扭轉液晶面板，主要以上、下二片正交金屬偏光板注入液晶，金屬偏光板除具偏光功能外，兼具配向及透明電極功能。惟金屬偏光板微溝槽結構雖具配向功能，然因未具預傾角而造成多域現象，可將液晶多次退火或掺入旋光液使成單域狀態。另鋁金屬偏光板表面電阻低於一般氧化錫銦透明電極，其柵狀結構之半透光狀態，極適合作為透明電極。同時，鋁金屬偏光板亦比塑膠偏光板耐高溫及抗紫外光等優點。

新型液晶面板與傳統液晶面板實驗比較結果臨界電壓、飽和電壓、反應時間幾乎相同，實驗驗證金屬偏光板同時具備偏光分光、配向及透明電極三項功能。由於金屬偏光板穿透其一偏光及反射另一偏光之偏光分光特性，本論文以投影顯示器系統及半透光太陽能電池系統二案例驗證新型液晶面板除具顯示器調光功能外，更可反射光再利用增加效能。

本論文提出之新型液晶面板可廣泛應用於液晶投影顯示器及半透光太陽能電池等調光及反射光再利用系統，金屬偏光板兼具偏光、配向及透明電極等多重功能，有關特性也與傳統液晶面板進行實驗分析比較。

In this study, a novel twist nematic (TN) liquid crystal (LC) cell that TN-LCs were sandwiched between two cross embedded wire-grid polarizers (WGPs) as alignment and electrode. In the proposed device, the WGPs replaced not only the sheet polarizers in a conventional TN-LC cell, but also the front and rear alignment layers and transparent electrodes. It was found that the structure of WGP microgroove was suitable for alignment; however, the novel TN-LC cell appeared multi-domain phenomenon due to no apparent pre-tilt angle on two WGPs. The multi-domain could be solved by the annealing method and chiral material blended with TN-LC for twisting LC in the same direction. In addition, the surface resistance of the aluminum WGP was two orders lower than the indium-tin-oxide (ITO) glass substrates that it was suitable for electric conductivity and transparent electrode. Also, metallic WGPs exhibited a higher heat resistance characteristic and more durable in ultraviolet (UV) ray environment than plastic sheet polarizers for robust.

As a result, the threshold voltages, the saturation voltages and the response time of the novel TN-LC cell were almost substantially identical to the conventional TN-LC cell. These WGPs performed a polarization beam splitter (PBS) function, i.e. they transmitted one polarized component of the incident light and reflected the other. The proposed device incorporating WGPs exhibited not only adjustable transmitting component but also recycling reflective component. Two examples, LCD projection display and translucent a-Si:H solar cell applications, in recycling the reflective light from the WGP of the novel TN-LC cell were developed in this study.

In this study, a novel TN-LC cell was developed for LCD projector and translucent a-Si:H solar cell applications, in which two cross WGPs were used to replace not only the polarizer sheets in a conventional TN-LC cell, but also the front and rear alignment layers and transparent electrodes. The electro-optical characteristics of the novel TN-LC cells and their applications were analyzed experimentally and were compared with those of a conventional TN-LC cell.

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