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研究生:許郭任
研究生(外文):Kuo-Jen Hsu
論文名稱:薄膜電晶體液晶顯示器源極驅動器之研究
論文名稱(外文):Study on TFT-LCD Source Driver
指導教授:盧志文盧志文引用關係
指導教授(外文):Chih-Wen Lu
學位類別:碩士
校院名稱:國立暨南國際大學
系所名稱:電機工程學系
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2004
畢業學年度:92
語文別:中文
論文頁數:96
中文關鍵詞:緩衝器液晶顯示器源極驅動器
外文關鍵詞:bufferliquid crystal display(LCD)source driver
相關次數:
  • 被引用被引用:8
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  • 下載下載:146
  • 收藏至我的研究室書目清單書目收藏:1
本論文中提出了兩種給薄膜電晶體液晶顯示器應用之源極驅動器,第一種是應用在UXGA薄膜電晶體液晶顯示器上,第二種是應用在可攜式小尺寸薄膜電晶體液晶顯示器上。
第一個源極驅動器利用兩個高速且互補的緩衝放大器去驅動一對資料線,達到軌對軌以及高速驅動。輸出緩衝器靠著使用一個簡單的比較器去感測輸入信號來打開輔助驅動電晶體,達到大的驅動能力,輔助驅動電晶體在穩態時是關的狀態,可增加速度但不增加靜態功率消耗。
第二個源極驅動器利用顏色數目的選擇,來控制參考電壓的緩衝器開或關,達到靜態功率的控制,並且使用五階七相電荷回收法來減少動態功率消耗。一個B類緩衝器也被提出,用來驅動變動的負載,因為補償電阻並不在電荷回收的路徑上,所以不會降低電荷回收的速度。
In this thesis, two types of source drivers for TFT-LCD applications are proposed. The first type is for the application of UXGA TFT-LCD and the second one is for the portable small-scale TFT-LCD.
For the first source driver, two high-speed complementary differential buffer are proposed to driver a pair of data lines and to realize a rail-to-rail and high speed drive. The output buffer amplifier achieves a large driving capability by employing a simple comparator to sense the transients of the input to turn on an auxiliary driving transistor, which is statically off in the stable state. This increases the speed without the increasing static power consumption.
In the second source driver, reference voltage buffers are turned on and off according to the selected number of colors, to achieve static power control. Also, the proposed source driver utilizes five-level seven-phase charge-recycling method to reduce the dynamic power consumption. A class-B buffer is also proposed to drive variable loads. Since the compensation resistor is not in the charge-recycling network, it will not reduce the speed of the charge-recycling operation.
中文摘要………………………………………………………………………Ⅰ
英文摘要………………………………………………………………………Ⅱ
誌謝……………………………………………………………………………Ⅲ
目錄……………………………………………………………………………Ⅳ
圖目錄…………………………………………………………………………Ⅵ
表目錄…………………………………………………………………………Ⅹ
第一章 緒論……………………………………………………………………1
1.1液晶顯示器簡介……………………………………………………………1
1.2 TFT-LCD系統 …………………………………………………………… 3
1.3 TFT-LCD驅動方法…………………………………………………………5
1.3.1 TFT-LCD驅動原理………………………………………………… 5
1.3.2反轉法……………………………………………………………… 6
1.3.3迦瑪校正…………………………………………………………… 7
1.4 論文架構………………………………………………………………… 8
第二章 高速源極驅動器設計…………………………………………………9
2.1高速源極驅動器設計考量…………………………………………………9
2.1.1傳統液晶顯示器源極驅動器……………………………………… 9
2.1.2高速驅動……………………………………………………………10
2.1.3高驅動能力…………………………………………………………11
2.2源極驅動器設計………………………………………………………… 11
2.2.1軌對軌驅動結構……………………………………………………11
2.2.2源極驅動器架構……………………………………………………13
2.2.3移位暫存器…………………………………………………………14
2.2.4反轉控制器…………………………………………………………16
2.2.5輸入暫存器…………………………………………………………17
2.2.6資料栓鎖器…………………………………………………………18
2.2.7數位類比轉換器……………………………………………………19
2.2.8輸出緩衝器…………………………………………………………21
2.3高速低功率軌對軌緩衝放大器.…………………………………………23
2.4模擬結果………………………………………………………………… 28
2.5 實驗結果…………………………………………………………………32
2.6 結論………………………………………………………………………38
第三章 低功率源極驅動器設計…………………………………………… 40
3.1低功率源極驅動器設計考量…………………………………………… 40
3.2源極驅動器設計………………………………………………………… 44
3.2.1源極驅動器架構……………………………………………………44
3.2.2輸出緩衝器…………………………………………………………45
3.2.3五階七相電荷回收電路……………………………………………54
3.3模擬結果………………………………………………………………… 59
3.4實驗結果………………………………………………………………… 64
3.5結論……………………………………………………………………… 67
第四章 結論………………………………………………………………… 69
附錄A AB類緩衝放大器設計…………………………………………………71
A.1AB類緩衝放大器電路…………………………………………………… 71
A.2模擬結果………………………………………………………………… 75
A.3結論……………………………………………………………………… 82
參考文獻 …………………………………………………………………… 83
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[2]Chih-Wen Lu and Chung Len Lee “A Low Power High Speed Rail-to-Rail Class-AB Buffer Amplifier for Flat Panel Display Application,” 7th Asian Symposium on Information Display, Singapore, pp. 221-224, September, 2002.
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[8]Tetsuro Itakura and Hironori Minamizaki, “A Two-Gain-Stage Amplifier without an On-Chip Miller Capacitor in an LCD Driver IC,” IEICE Trans. Fundamentals, Vol. E85-A, No. 8 August, pp. 1913-1920, 2002.
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