High-speed low-power voltage-programmed driving scheme for AMOLED displays
A new voltage-programmed driving scheme named the mixed parallel addressing scheme is presented for AMOLED displays, in which one compensation interval can be divided into the first compensation frame and the consequent N – 1 post-compensation frames without periods of initialization and threshold v...
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| Published in | Journal of semiconductors Vol. 36; no. 12; pp. 135 - 142 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
01.12.2015
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1674-4926 |
| DOI | 10.1088/1674-4926/36/12/125005 |
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| Abstract | A new voltage-programmed driving scheme named the mixed parallel addressing scheme is presented for AMOLED displays, in which one compensation interval can be divided into the first compensation frame and the consequent N – 1 post-compensation frames without periods of initialization and threshold voltage detection.The proposed driving scheme has the advantages of both high speed and low driving power due to the mixture of the pipeline technology and the threshold voltage one-time detection technology. Corresponding to the proposed driving scheme, we also propose a new voltage-programmed compensation pixel circuit, which consists of five TFTs and two capacitors（5T2C）. In–Zn–O thin-film transistors（IZO TFTs） are used to build the proposed 5T2 C pixel circuit. It is shown that the non-uniformity of the proposed pixel circuit is considerably reduced compared with that of the conventional 2T1C pixel circuit. The number of frames（N） preserved in the proposed driving scheme are measured and can be up to 35 with the variation of the OLED current remaining in an acceptable range.Moreover, the proposed voltage-programmed driving scheme can be more valuable for an AMOLED display with high resolution, and may also be applied to other compensation pixel circuits. |
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| AbstractList | A new voltage-programmed driving scheme named the mixed parallel addressing scheme is presented for AMOLED displays, in which one compensation interval can be divided into the first compensation frame and the consequent N-1 post-compensation frames without periods of initialization and threshold voltage detection. The proposed driving scheme has the advantages of both high speed and low driving power due to the mixture of the pipeline technology and the threshold voltage one-time detection technology. Corresponding to the proposed driving scheme, we also propose a new voltage-programmed compensation pixel circuit, which consists of five TFTs and two capacitors (5T2C). In-Zn-O thin-film transistors (IZO TFTs) are used to build the proposed 5T2C pixel circuit. It is shown that the non-uniformity of the proposed pixel circuit is considerably reduced compared with that of the conventional 2T1C pixel circuit. The number of frames (N) preserved in the proposed driving scheme are measured and can be up to 35 with the variation of the OLED current remaining in an acceptable range. Moreover, the proposed voltage-programmed driving scheme can be more valuable for an AMOLED display with high resolution, and may also be applied to other compensation pixel circuits. A new voltage-programmed driving scheme named the mixed parallel addressing scheme is presented for AMOLED displays, in which one compensation interval can be divided into the first compensation frame and the consequent N – 1 post-compensation frames without periods of initialization and threshold voltage detection.The proposed driving scheme has the advantages of both high speed and low driving power due to the mixture of the pipeline technology and the threshold voltage one-time detection technology. Corresponding to the proposed driving scheme, we also propose a new voltage-programmed compensation pixel circuit, which consists of five TFTs and two capacitors（5T2C）. In–Zn–O thin-film transistors（IZO TFTs） are used to build the proposed 5T2 C pixel circuit. It is shown that the non-uniformity of the proposed pixel circuit is considerably reduced compared with that of the conventional 2T1C pixel circuit. The number of frames（N） preserved in the proposed driving scheme are measured and can be up to 35 with the variation of the OLED current remaining in an acceptable range.Moreover, the proposed voltage-programmed driving scheme can be more valuable for an AMOLED display with high resolution, and may also be applied to other compensation pixel circuits. |
| Author | 夏兴衡 吴为敬 宋小峰 李冠明 周雷 张立荣 徐苗 王磊 彭俊彪 |
| AuthorAffiliation | State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China New Vision Opto-Electronic Technology Co., Ltd., Guangzhou 510530, China |
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| CitedBy_id | crossref_primary_10_1016_j_mejo_2024_106093 crossref_primary_10_1587_elex_13_20160061 crossref_primary_10_3390_electronics11060960 |
| Cites_doi | 10.1063/1.2353811 10.1109/JDT.2013.2292555 10.1109/LED.2003.816590 10.1016/j.sse.2013.09.008 10.1889/1.2835027 10.1109/JDT.2007.900921 10.1002/adma.200801470 10.1109/JSSC.2004.829373 10.1016/j.displa.2013.03.002 10.1109/JDT.2014.2301020 10.1109/TED.2007.894608 10.1109/LED.2013.2271908 10.1038/nature03090 10.1889/JSID19.4.329 10.1149/1.2761252 10.1109/LED.2008.2011291 10.1109/JDT.2007.900924 10.1063/1.3670336 10.1063/1.3206917 10.1109/LED.2011.2148152 10.1109/JDT.2008.916058 10.1109/LED.2006.889523 10.1109/LED.2012.2190966 10.1109/LED.2005.859674 |
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| Notes | active-matrix organic light-emitting diode （AMOLED）; low power; pixel circuit; mixed parallel addressing A new voltage-programmed driving scheme named the mixed parallel addressing scheme is presented for AMOLED displays, in which one compensation interval can be divided into the first compensation frame and the consequent N – 1 post-compensation frames without periods of initialization and threshold voltage detection.The proposed driving scheme has the advantages of both high speed and low driving power due to the mixture of the pipeline technology and the threshold voltage one-time detection technology. Corresponding to the proposed driving scheme, we also propose a new voltage-programmed compensation pixel circuit, which consists of five TFTs and two capacitors（5T2C）. In–Zn–O thin-film transistors（IZO TFTs） are used to build the proposed 5T2 C pixel circuit. It is shown that the non-uniformity of the proposed pixel circuit is considerably reduced compared with that of the conventional 2T1C pixel circuit. The number of frames（N） preserved in the proposed driving scheme are measured and can be up to 35 with the variation of the OLED current remaining in an acceptable range.Moreover, the proposed voltage-programmed driving scheme can be more valuable for an AMOLED display with high resolution, and may also be applied to other compensation pixel circuits. 11-5781/TN Xia Xingheng, Wu Weijing, Song Xiaofeng, Li Guanming, Zhou Lei, Zhang Llrong , Xu Miao, Wang Lei, Peng Junbiao（ 1State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China 2New Vision Opto-Electronic Technology Co., Ltd., Guangzhou 510530, China） ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
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| References | 22 23 24 Wang C (5) 25 26 27 28 29 Dawson R M A (1) 1998 10 11 12 14 15 16 17 18 19 Zhang Y W (13) 2013; 34 2 3 4 6 Song X F (7) 2013; 34 8 9 20 21 |
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| SubjectTerms | Circuits Compensation Displays OLED显示器 OLED显示屏 Organic light emitting diodes Pixels Semiconductor devices Semiconductors Thin film transistors 低功耗 编程 薄膜晶体管 阈值电压 驱动方案 |
| Title | High-speed low-power voltage-programmed driving scheme for AMOLED displays |
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