本論文旨在利用S-PVA電路設計的概念，提出三個採用單一液晶間隙架構之半穿透半反射式液晶顯示器新式畫素電路，在簡單的製程下，利用電路的方式來達到穿透與反射兩區液晶操作電壓的匹配，使得面板具有廣視角功能且有較高的顯示品質。
本論文所提出的第一個電路架構僅由兩顆TFT所組成，畫素電路元件數最精簡且提高了畫素的開口率。電路所模擬之曲線在低灰階時誤差約29灰階內、中灰階誤差則約25灰階內。第二個電路架構則由三顆TFT組成並多利用了兩顆電容來改善前一個電路中低灰階時的曲線誤差，模擬時曲線在低灰階誤差可縮小到23灰階內、中灰階誤差則約24灰階內，高灰階時誤差雖然較大，但其實面板顯示在高灰階時亮度會較亮，因此以人眼來講會比較判斷不出來。第三個電路架構亦是由三顆TFT所組成，架構上採用了特殊波形驅動方式來控制穿透與反射區液晶操作電壓的比例，將能使曲線在模擬時誤差極小且非常匹配原始特性曲線。本論文所提出的三個電路，均能提升面板的顯示品質，除了提高畫素開口率以增進發光效率外，對於面板在廣視角的應用上也相當有助益，因此非常具有其應用價值。

This work presents three pixel circuits of transflective TFT-LCD. The concept of super patterned vertical alignment (S-PVA) and the structure of single cell gap are adopted in circuit design. With simple fabrication processes, the principle of pixel circuits is to match the operating voltages of liquid crystal in transmissive(T) and reflective(R) regions, respectively. Three proposed pixel circuits in this work can provide wide viewing angle and high image quality for panel.
The first pixel circuit, composed of two TFTs, simplifies circuit elements and increases aperture ratio of pixel. The simulation result of this circuit has an error of 29 gray levels in the low gray level and an error of 25 gray levels in the middle gray level. The second pixel circuit, composed of three TFTs and additional two capacitors is used to improve the first pixel circuit. The simulation result has an error of 23 gray levels in the low gray level and an error of 24 gray levels in the middle gray level. Despite the error is large in the high gray level, the pixel in the high gray level is brighter, so human eyes can not identify the difference. The third pixel circuit has three TFTs, special wave driving method is used to control the voltage ratio between T and R regions, the simulation result is well matched to the characteristic curve, which means the error is minimized. The proposed circuits improve image quality and enhance luminating efficiency. These circuits will contribute to wide viewing angle applications in the future.

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