RGB主動矩陣有機發光二極體顯示器之驅動、補償電路之設計與開口率之研究

Abstract

本論文是結合兩種已發表於文獻上的電路來驅動、補償主動矩陣有機發光二極體顯示器電路，兩種電路皆具有對薄膜電晶體臨界電壓變動的影響作補償，差別在於第一種電路用的元件數目較少（二個薄膜電晶體、一個電容、三條外部訊號線），而有比較大的開口率表現，第二種電路用的元件數目較多（五個薄膜電晶體、一個電容、四條外部訊號線），但卻具有改善有機發光二極體隨時間劣化問題的功能，本論文希望融合這兩種電路的優點而提出一個新的電路架構，讓電路除了可補償薄膜電晶體的臨界電壓問題之外，還可在比起第二種電路有較高的開口率表現之下，具有提升主動矩陣有機發光二極體顯示器壽命的功能。

We combine two kinds of proposed circuits to compensate and drive active-matrix organic light-emitting diode (AMOLED). Both the circuits can compensate threshold voltage variation of drive thin film transistors (TFTs). First circuit has fewer components. It consists of two TFTs, one capacitor, and three external signal lines. So, the scheme can achieve high aperture ratio. Second circuit has more components. It consists of five TFTs, one capacitor, and four external signal lines. But, it not only compensates the variation of the threshold voltage of TFTs but also improves the lifetime of OLED. We propose a circuit scheme that takes advantage of two circuits to achieve higher aperture than second circuit and increase the lifetime of AMOLED display simultaneously.