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研究生: 黃富星
Huang, Fu-Hsing
論文名稱: 主動式有機電致發光二極體電路節能設計
Design of Circuit of Low Power Consumption for AMOLED
指導教授: 周榮華
Chou, Jung-Hua
學位類別: 碩士
Master
系所名稱: 工學院 - 工程科學系
Department of Engineering Science
論文出版年: 2005
畢業學年度: 93
語文別: 中文
論文頁數: 72
中文關鍵詞: 主動式發光二極體
外文關鍵詞: TFT, OLED
相關次數: 點閱:83下載:6
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  •   OLED顯示器是利用電流驅動顯示,當面板尺寸增加時,整體電流量增加,造成耗電量也跟著增加,為了減少耗電量,除了改善材料的發光效率外,設計穩定的驅動電路,亦可以降低消耗功率,達到節能的效果。
      本論文提出,由6顆TFT所構成的主動式電流鏡驅動電路,控制OLED的電流,在OLED的量子效率為1﹪與發光亮度是300cd/m2的條件下,只需供應7伏特電壓與2μA的驅動電流,消耗功率低,跟相關文獻比較,有達到節能的效果。

     The principle of OLED is utilizing current drivers to show display. Therefore, if the size of the flat panel displays become larger, the total current that flat panel displays needed will also increase. In order to reduce the power consumption, not only the luminescence efficiency of the material should be improved, but also a stable circuit be designed.

     In this thesis, a method which uses active matrix current mirror circuit with six TFT to control the current is proposed. In this case, if the quantum efficiency of an OLED is 1% and the luminescence is 300cd/m2, the proposed circuit only requires 7V and 2μA. Compare to others, this result is better than theirs. It can achieve a lower power consumption and thus energy efficient.

    表目錄 IV 圖目錄 V 符號表 VIII 第一章、導論 1 1-1 前言 1 1-2有機電致發光二極體簡介 2 1-3有機電致發光顯示器簡介 4 1-3-1全彩化顯示器 5 1-4文獻回顧 7 1-5 研究動機與目標 11 第二章、有機電致發光二極體及相關元件特性 13 2-1 有機電致發光二極體元件 13 2-1-1 OLED的理論分析 13 2-1-2 OLED的等效電路 14 2-2 有機薄膜電晶體 15 2-3 無機薄膜電晶體 15 2-4 準分子雷射退火與薄膜電晶體的關係 16 2-5 薄膜電晶體的基本特性 17 第三章、畫素驅動電路 19 3-1 前言 19 3-2 電壓型畫素驅動電路 19 3-2-1 5T1C畫素電路的動作原理 20 3-2-2 5T1C的模擬結果 21 3-3 電流型畫素驅動電路 21 3-3-1 電流複製驅動方式 22 3-3-2 電流鏡驅動方式 23 3-4 電流鏡驅動方式的設計要領 24 3-5 新型畫素驅動電路設計 24 3-5-1 驅動電路架構 25 3-5-2 新型電路的方程式 27 第四章、結果與討論 29 4-1 前言 29 4-2 參數設定 29 4-3 驅動電路模擬結果 30 4-3-1 臨界電壓、載子移動率與驅動電流的關係 30 4-3-2 溫度與驅動電流的關係 31 4-4 電流的起始反應時間 32 4-5 消耗功率之比較 33 第五章、結論 34 參考文獻 35

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