Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/6667
標題: 應用於主動式有機發光二極體顯示器之畫素與驅動電路設計
Pixel and Driving Circuit Design for Active Matrix Organic Light Emitting Diode Display
作者: 柯建銘
Ko, Chien-Ming
關鍵字: pixel
畫素
oled
driving circuit
有機發光二極體
驅動電路
出版社: 電機工程學系所
引用: [1] 葉永輝,“OLED將成為液晶顯示器接班人?從主動式有機發光顯示器技術發展談起”,新電子科技雜誌,2002/12。 [2] 顧鴻壽編著,“光電有機電激發光顯示器技術及應用”, 新文京開發出版有限公司。 [3] http://www.cmel.com.tw/004.asp [4] 江永欣,“彩色被動式有機發光二極體顯示器驅動電路之研究”, 國立台灣大學電機工程研究所,碩士論文,民國90年。 [5] 陳志強、黃文鈺、陳丕夫,“面板的完美組合 – 主動式有機發光二極體” 電子月刊第九卷第四期。 [6] 羅新弦,”主動式有機電激發光二極體顯示器畫素驅動電路之分析與設計,” 私立長庚大學光電工程研究所,碩士論文,民國93年。 [7] 蘇永祥、橫山明聰、朱健慈、江俊德, “電激發光新視界”,科學發展, 2002年1月 349期。 [8] 河村正行 原著 趙中興編譯, “有機EL顯示面板的原理與技術”,全華科技圖書股份有限公司。 [9] M.Kimura, H.Maeda, Y.Matsueda, S.Miyashita, T.Shimoda, S.W.B.Tam, P.Migliorato, J.H.Burroughes, C.R.Towns and R.H.Friend,“Low- Temperature Poly-Si TFT Driven Light-Emitting-Polymer Displays and Digital Gray Scale for Uniformity” in Proceedings of International Display Workshops,1999,pages:171~174. [10] Takashi Nanmoto, Hiroyuki Hara, Kasori Takahashi, Takahiro Iwashita, Hiroshi Hirayama, Hideyuki Kawai, Satoshi Inoue, and Tatsuya Shumoda, ”Optimization of a time ratio gray scale method for OLED display,” in Proceedings of International Display Workshops, 2003, pp.263-266. [11] Mayumi Mizukami, Kazutaka Inukai,Hirokazu Yamagata, Toshimitsu Konuma, Takeshi Nishi,Jun Koyama, Shumpei Yamazaki,Tetsuo Tsutsui, ”6-bit digital VGA OLED”, in SID Tech.Dig.,2000,pp.912-915. [12] Kazutaka Inukai, Hajime Kimura,Mayumi Mizukami, Junya Maruyama, Satoshi Murakami, Jun Koyama, Toshimitsu Konuma, and Shumpei Yamazaki,”4.0-in.TFT-OLED Displays and a Novel Digital Driving Method,” in SID Tech.Dig.,2000, pp.924-927. [13] Jae-Hoon Lee,Bong-Hyun You,Woo-Jin Nam,Hye-Jin Lee and, Min-Koo Han,”A new a-Si:H TFT pixel design compensating threshold voltage degradation of TFT and OLED,”in SID Tech.Dig.,2004, pp.264-267. [14] R.M.A. Dawson, Z. Shen, D. A. Furest, S. Connor, J. Hsu, M. G. Kane, R. G. Stewart, A Ipri, C. N. King, P. J. Green, R. T. Flegal, S. Pearson, W. A. Tang, S. Van Slyke, F. Chen, J. Shi, M. H. Lu, and J. C. Saturn, ”The Impact of the Transient Response of Organic Light Emitting Diodes on the Design of Active Matrix OLED Displays”, in IEDM Tech. Dig.,1998, pp. 875-878. [15] N.Komiya, C.Y.Oh,K.M.Eom, J.T.Jeong, H.K.Chung”Comparison of Vth compensation ability among voltage programming circuits for AMOLED panels” in Proceedings of International Displays Workshops, 2003, pp.275-278. [16] Sang-Hoon Jung, Woo-Jin Nam, and Min-Koo Han , “A New Voltage- Modulated AMOLED Pixel Design Compensating for Threshold Voltage Variation in Poly-Si TFTs” IEEE ELECTRON DEVICE LETTERS, VOL.25, NO.10.OCTOBER 2004. [17] J.Lee, W.Nam,S.Jung, and M.Han, ”A new current-scaling pixel circuit for AMOLED,”IEEE Electron Device.Lett./vol.25,no.5,pp.280-282,May 2003. [18] James L. Sanford and Frank R.Libsch “TFT AMOLED Pixel Circuits and Driving Methods”in SID. Dig.,2000, pp.974-977. [19] Hajime Akimoto, Hiroshi Kageyama, Yoshiteru Shimizu, Hiroki Awakura, Shigeyuki Nishitani,and Toshihiro Sato, ”An innovative pixel-driving scheme for 64-level gray-scale full-color active matrix OLED displays,” in SID Tech. Dig.,2002, pp.972-975. [20] Hiroshi Kageyama, Hajime Akimoto,Takayuki Ouchi,Naruhiko Kasai,Hiroki Awakura, Naoki Tokuda,and Toshihiro Sato, ”A 3.5-inch OLED Display using a 4-TFT Pixel Circuit with an Innovative Pixel Driving Scheme” in SID Tech. Dig.,2003, pp.96-99. [21] Hiroshi Kageyama, Hajime Akimoto, Yoshiteru Shimizu, Takayuki Ouchi, Naruhiko Kasai,Hiroki Awakura, Naoki Tokuda,Kenta Kajiyama, Toshihiro Sato,”A 2.5-inch OLED Display with a Three-TFT Pixel Circuit for Clamped Inverter Driving” in SID Tech. Dig.,2004, pp.1394-1397. [22] H. Akimoto, H. Kageyama , Yoshiteru Shimizu”Two TFT Pixel Circuit with Non-Uniformity Suppress-Function for Voltage Programming Active Matrix OLED Displays” in SID Tech. Dig.,2005, pp.1550-1553. [23] Arokia Nathan, Senior Member, G.. Reza Chaji, Shahin J. Ashtiani , “ Driving Schemes for a-Si and LTPS AMOLED Displays” IEEE JOURNAL OF DISPLAY TECHOLOGY, VOL. 1, NO. 2, DECEMBER 2005, pp.267-277. [24] 塗能平,“6位元主動矩陣式有機發光二極體驅動積體電路設計”,國立交通大學電機資訊學院電子與光電學程碩士論文,民國91年6月。 [25] Katsuhiko Morosawa, Tsuyoshi Toyoshima, Minoru Kanbara,and Masayuki Kakegawa ,“A Novel Poly-Si TFT Current DAC Circuit for AM-OLED Displays”,AM-LCD 2003 , pp 301-304. [26] EDUARD SACKINGER,and WALTER GUGGENBUHL ,“A High-Swing, High-Impedance MOS Cascode Circuit”IEEE JOURNAL OF SOLID-STATE CIRCUITS,VOL. 25,NO.1,FEBRUARY 1990, pp 289-298. [27] 陳信樹、鐘政峰,”CMOS製成推波助瀾-數位被比轉換器朝高速發展”,新電子科技雜誌,2005.一月號,pp163-167。 [28] S.Chin and C. Wu,”A 10-b 125-MHZ CMOS digital-to-analog Converter with threshold-voltage compensated current sources”, IEEE JOURNAL.OF SOLD-STATE CIRCUITS.VOL.29,NO. 11,NOVEMBER 1994, pp. 1374-1380.
摘要: 有機電激發光二極體顯示器因為具有體積薄、重量輕、自發光、廣視角、反應速度快…等等的優點,所以被譽為下世代平面顯示器的明日之星。近年來,也越來越多的研究在發展有機電激發光二極體,不管是在材料壽命、元件的結構、驅動方法…等等,漸漸的都朝向主動式有機電激發光二極體的大面板、高解析度的方向。 一般來說,有機電激發光二極體皆以低溫多晶矽薄膜電晶體來驅動,但是因為低溫多晶矽是利用準分子退火雷射製造的,所以在元件上會有變異性的存在,會造成面板亮度的不均勻性。因此在這方面,有許多的補償方法和畫素電路被提出來。在本論文中,我們提出了一個新型的電流式畫素驅動電路,能夠補償臨界電壓值的變異性,並且可以克服傳統電流複製的方法會對大電容負載有充電時間過長的問題。 為了提供電流式畫素電路輸入資料電流,我們設計了一新型的數位類比轉換器,利用調節疊接(RGC)電路當作電流源,抑制kink effect的效應,再採用開關驅動電路減少突波(glitch)的影響,改善輸出電流的單調性和差動非線性誤差(DNL),最後使得此電流式數位類比轉換器的輸出電流的積分非線性誤差(INL)和差動非線性誤差(DNL)都可以在±0.5LSB以下。 因此配合本論文中所提出的新型電流式畫素電路和電流式數位類比轉換器,將有潛力可應用於主動式有機電激發光二極體的面板上。
Organic light emitting diodes display have many advantages such as thin、lightweight、self-lighting、wide view angle 、response fast… etc. Therefore, OLED display promise to be an attractive solution for next-generation flat panel displays. Recently, there are many development in OLEDs, regardless of materials life、device structure、diving method and so on. Gradually they develop for large size、high resolution display panel of organic light emitting diodes in the future. Generally, Organic light emitting diodes are drived by low temperature polysilicon thin film transistor (LTPS-TFT). But Low temperature polysilicon thin film transistor (LTPS-TFT) manufactured by ELA process, it exists variations on devices. And it caused brightness uniformity in the OLED panel. In this way, there are many compensation methods and pixel circuits which were reported. So we proposed a new current programming pixel circuit in this thesis. It can compensate variations of threshold voltage and overcome conventional current copy method for charge time too long for large capacitive load. Continuously, we also design a current-mode digital to analog converter to provide input current for our current pixel circuit. We empoly a regulated cascade circuit (RGC) circuit as a current source to suppress kink effect, and adopt switch driver to reduce glitch to improve monotonicity and differential nonlinearity error. Finally, this current digital to analog converter can control INL and DNL within ±0.5LSB. For this reason, we proposed new current-mode pixel circuit and current-mode digital to analog converter. The proposed circuits have potentials to apply organic light emitting diodes display in the future.
URI: http://hdl.handle.net/11455/6667
其他識別: U0005-2208200610382300
文章連結: http://www.airitilibrary.com/Publication/alDetailedMesh1?DocID=U0005-2208200610382300
Appears in Collections:電機工程學系所

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