應用於低功率顯示器欄驅動器之電荷共享配對方法

Abstract

此論文提出一個減少顯示器欄驅動器動態消耗功率的電荷回收配對技巧，此方法能讓欄驅動器在傳統的電荷回收方法不可能達成的相同極性操作下節省動態消耗功率。理論上的分析與模擬結果展現了此方法的性能，在假設欄驅動器輸出操作在欄反轉的前提下，傳統直線型像素排列面板可以減少12%的動態消耗功率，蜿蜒式像素排列面板可以減少30%的動態消耗功率。這個方法可以應用在所有電壓驅動電容負載的欄驅動器，特別是薄膜液晶顯示器與主動式有機發光二極體顯示器。 此論文詳細解釋一個完整的方法包括電路架構、原理與操作流程應用薄膜液晶顯示器，並提供軟體模擬提供理論上的分析，同時透過RTL與FPGA評估了實現此方法所需的硬體資源。

The charge recycling match (CRM) technique is proposed to reduce dynamic power dissipation in display column drivers. The CRM technique can save much power in same polarity operations, which are not easy to have charge recycling in conventional techniques. Theoretical analysis and simulation result show maximum dynamic power reduction of 12% and 30% in column inversion panel with R/G/B stripe pixel arrangement and Zigzag panel, respectively. The proposed method is suitable for voltage mode driving scheme and capacitive loading display column driver. Specially, it also works in thin-film-transistor (TFT) liquid crystal displays (LCDs) and active mode organic light-emission-diode (AMOLED) display. A complete method application including circuit structure, principle, and operation flow are demonstrated in TFT-LCD application. The software provides the theoretical analysis. Besides, the Hardware resource of implementation is implemented by RTL and tested by FPGA to show the correctness of the proposed technique.