| 基于低温多晶硅薄膜晶体管的AMOLED交流像素电路 |
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| 引用本文： | Zhang Yongwen,Chen Wenbin. 基于低温多晶硅薄膜晶体管的AMOLED交流像素电路[J]. 半导体学报, 2013, 34(1): 015009-5 |
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| 作者姓名： | Zhang Yongwen Chen Wenbin |
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| 作者单位： | School of Optoelectronic Information,University of Electronic Science and Technology of China |
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| 基金项目： | 四川省应用基础研究资助项目(2010JJY0003) |
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| 摘 要： | This work presents a new voltage programmed pixel circuit for an active-matrix organic light-emitting diode(AMOLED) display.The proposed pixel circuit consists of six low temperature polycrystalline silicon thinfilm transistors(LTPS TFTs),one storage capacitor,and one OLED,and is verified by simulation work using HSPICE software.Besides effectively compensating for the threshold voltage variation of the driving TFT and OLED,the proposed pixel circuit offers an AC driving mode for the OLED,which can suppress the degradation of the OLED.Moreover,a high contrast ratio can be achieved by the proposed pixel circuit since the OLED does not emit any light except for the emission period.
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| 关 键 词： | low temperature polycrystalline silicon thin-film transistors active-matrix OLED pixel circuit SPICE simulation uniformity |
| 收稿时间： | 2012-06-20 |
| 修稿时间： | 2012-07-24 |
A new LTPS TFT AC pixel circuit for an AMOLED |
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| Zhang Yongwen and Chen Wenbin. A new LTPS TFT AC pixel circuit for an AMOLED[J]. Chinese Journal of Semiconductors, 2013, 34(1): 015009-5 |
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| Authors: | Zhang Yongwen and Chen Wenbin |
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| Affiliation: | School of Optoelectronic Information, University of Electronic Science and Technology of China, Chengdu 610054, China |
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| Abstract: | This work presents a new voltage programmed pixel circuit for an active-matrix organic light-emitting diode (AMOLED) display. The proposed pixel circuit consists of six low temperature polycrystalline silicon thin-film transistors (LTPS TFTs), one storage capacitor, and one OLED, and is verified by simulation work using HSPICE software. Besides effectively compensating for the threshold voltage variation of the driving TFT and OLED, the proposed pixel circuit offers an AC driving mode for the OLED, which can suppress the degradation of the OLED. Moreover, a high contrast ratio can be achieved by the proposed pixel circuit since the OLED does not emit any light except for the emission period. |
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| Keywords: | low temperature polycrystalline silicon thin-film transistors active-matrix OLED pixel circuit SPICE simulation uniformity |
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