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研究生:李彥輝
研究生(外文):Yan-Huei Li
論文名稱:低成本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 Low-cost 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:2009
畢業學年度:98
語文別:中文
論文頁數:80
中文關鍵詞:源極驅動器液晶顯示器非線性電組串數位類比轉換器迦瑪電壓
外文關鍵詞:Source driverLiquid crystal displayNonlinear resister stringDACsGamma voltages
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  • 被引用被引用:0
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本論文第一個電路提出一種六位元源極驅動器(source driver),此架構是使用一組非線性電組串(nonlinear R-string)給多組數位類比轉換器(DAC)使用,每一組DAC產生電壓至channel輸出,並利用有限個數的緩衝器(buffer)穩定迦瑪電壓(gamma voltage)。本論文提出的電路有效減少buffer個數並穩定電組串上的電壓,進而達到降低成本的優點。
本論文第二個電路提出一個新的源極驅動器架構以降低薄膜液晶顯示器(TFT LCD)晶片佈局面積,達到低成本的目的。DAC在源極驅動器中佔了極大的面積。因此本專題利用一個DAC decoder提供給兩個channel使用,使DAC的decoder數目減少一半,晶片面積即可減小以降低成本。本專題也有做charge recycle來減少功率消耗。
In the first part of the thesis, A 6-bit source driver circuit has been proposed. The architecture utilizes a set of nonlinear resister string to provide the reference voltages to all of the R-DACs (digital-to-analog converters). Each R-DAC is responsible for one LCD (liquid crystal display) channel. A few of gamma buffers are used to make the gamma voltages stable. In the new architecture, the number of buffers can be greatly reduced by using less gamma buffers in front of the resister string instead of buffering each output voltage of the channel with one output buffer. Hence, the low cost and low power consumption source driver can be realized.
The second circuit in this thesis is suitable for the large panels. A new architecture of the source driver is presented to reduce the chip area. The DACs occupy the most part of the chip areas in the source driver. In our new architecture, one DAC decoder can be used in the two channels by the way of the elaborate arrangement. Then, the number of DAC decoder can be reduced by half, and chip can be save area close to a half. Besides, the charge recycling method is also be added in this circuit to reduce power consumption.
誌 謝 I
中文摘要 II
Abstract III
圖目錄 VI
表目錄 XI
第一章:緒論 1
1-1 液晶顯示器的系統簡介 1
第二章:液晶顯示器源極驅動器介紹 2
2-1 液晶顯示器的顯示與驅動原理 2
2-1-1 液晶顯示器的驅動原理 2
2-1-2 反轉法 3
2-1-3 迦瑪校正 4
2-2 源極驅動器 4
第三章:應用於小面板之低成本薄膜電晶體液晶顯示器源極驅動器 6
3-1 源極驅動器設計考量 6
3-2 源極驅動器 6
3-2-1 源極驅動器架構 6
3-2-2 數位類比轉換器 7
3-2-3 緩衝器 8
3-3 模擬結果 11
3-3-1 負極性運算放大器模擬結果 11
3-3-2 正極性運算放大器模擬結果 16
3-3-3 源極驅動器模擬結果 21
3-4 源極驅動器量測結果 25
第四章:應用於大面板之低成本薄膜電晶體液晶顯示器源極驅動器 37
4-1 源極驅動器設計考量 37
4-2 源極驅動器 37
4-2-1 源極驅動器架構 38
4-2-2 時脈產生電路 40
4-2-3 升壓電路 40
4-2-4 數位類比轉換器 41
4-2-5 緩衝器 42
4-3 模擬結果 44
4-3-1 時脈產生電路模擬結果 44
4-3-2 負極性運算放大器模擬結果 44
4-3-3 正極性運算放大器模擬結果 46
4-3-4 源極驅動器模擬結果 48
4-4 源極驅動器量測結果 60
第五章:結論 77
參考文獻 79
[1]戴亞翔著,“ TFT-LCD 面板的驅動與設計”,五南文化事業機構,2006
[2]交大顯示科技研究所上課講義:平面顯示器概論
(Introduction to Flat Panel Display )-謝漢萍
[3]交大顯示科技研究所上課講義:TFTLCD面板設計實務
(Practice of TFT LCD Panel Design)-戴亞翔
[4]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.
[5]NEC, “uPD160062A”.
[6]Tetsuro Itakura, Hironori Minamizaki, Tetsuya Satio, and Tadashi Kuroda, “A 402-Output TFT-LCD Driver IC With Power Control Based on the Number of Colors Selected”, IEEE JOURNAL OF SOLID-STATE CIRCUITS, Vol. 38, No.3, pp. 503-510, MARCH 2003.
[7]Chih-Wen Lu and Kuo-Jen Hsu, “A High-Speed Low-Power Rail-to-Rail Column Driver for AMLCD Application”, IEEE JOURNAL OF SOLID-STATE CIRCUITS, vol. 39, pp. 1313-1320, AUGUST 2004.
[8]Jong-Seok Kim, Deog-Kyoon Jeong, and Gyudong Kim, “A Multi-Level Multi-Phase Charge-Recycling Method for Low-Power AMLCD Column Drivers”, IEEE JOURNAL OF SOLID-STATE CIRCUITS, vol. 35, no. 1, pp. 74–84, JANUARY 2000.
[9]Yoo-Chang Sung and Oh-Kyong Kwon, “Low-Cost TFT-LCDs with Pre-emphasis Driving Method for Large-Size and High-Definition TVs”, IEEE Transactions on Consumer Electronics, Vol. 53, No. 4, pp. 1674-1681, NOVEMBER 2007.
[10]Hyung-Min Lee, Yong-Joon Jeon, Sung-Woo Lee, Gyu-Hyeong Cho, Hyoung-Rae Kim, Yoon-Kyung Choi, Myunghee Lee, “A 10b Column Driver with Variable-Current-Control Interpolation for Mobile Active-Matrix LCDs”, 2009 IEEE International Solid-State Circuits Conference.
[11]Chih-Wen Lu, Lung-Chien Huang “A 10-Bit LCD Column Driver With Piecewise Linear Digital-to-Analog Converters”, IEEE JOURNAL OF SOLID-STATE CIRCUITS, Vol. 43, No. 2, pp. 371-378, FEBERUARY 2008.
[12]Yijun Zhou and Jiren Yuan, “An 8-Bit 100-MHz CMOS Linear Interpolation DAC”, IEEE Journal of Solid-State Circuits, Volume 38, pp.1758 – 1761, Oct. 2003.
[13]Chih-Wen Lu and Chung Len Lee “A Low Power High Speed Class-AB Buffer Amplifier for Flat Panel Display Application”, IEEE Transactions on VLSI Systems, Vol 10, No. 2, pp. 163-168, April 2002.
[14]Fan You, S.H.K. Embabi and Edgar Sanchez-Sinencio, “Low-Voltage Class AB Output Amplifiers with Quiescent Current Control,” IEEE JOURNAL OF SOLID-STATE CIRCUITS. Vol.33, No.6, pp. 915-920, June 1998.
[15]Joongsik Kih, Byungsoo Chang, Deog-Kyoon Jeong, and Wonchan Kim, “Class-AB Large-Swing CMOS Buffer Amplifier with Controlled Bias Current”, IEEE JOURNAL OF SOLID-STATE CIRCUITS. Vol. 28, No.12, pp. 1350-1353, December 1993.
[16]Chih-Wen Lu, Yen-Chih Shen and Meng-Lieh Sheu“A High-Driving Class-AB Buffer Amplifier with a New Pseudo Source Follower”, Very Large Scale Integration, 2007. VLSI - SoC 2007. IFIP International Conference on Very Large Scale Integration, pp. 105-109 , Oct. 2007.
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