P-3: A New LTPS Pixel Circuit for Compensating the Variation of TFT Characteristics and Alleviating OLED Degradation

In this paper, we have developed a pixel compensation circuit that utilizes six LTPS TFTs and one capacitor for AMOLED displays by voltage‐programmed method. The proposed pixel circuit can compensate the threshold voltage variation of TFT and extend OLED lifetime, which is able to show better compen...

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Published inSID International Symposium Digest of technical papers Vol. 46; no. 1; pp. 1127 - 1130
Main Authors Hsu, Wei-Chu, Wu, Pi-Cheng, Jen, Ko-Ruey, Lee, Chien-Ya, Lin, Hong-Shen, Chang, Lee-Hsun, Lin, Yu-Hsin
Format Journal Article
LanguageEnglish
Published Campbell Blackwell Publishing Ltd 01.06.2015
Wiley Subscription Services, Inc
Subjects
Active matrix displays
Active-matrix organic light-emitting diode (AMOLED)
Circuits
Compensation
Displays
Low temperature poly-silicon (LTPS)
Organic light emitting diodes
panel non-uniformity
Pixels
Semiconductor devices
Thin film transistors
threshold voltage
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Abstract In this paper, we have developed a pixel compensation circuit that utilizes six LTPS TFTs and one capacitor for AMOLED displays by voltage‐programmed method. The proposed pixel circuit can compensate the threshold voltage variation of TFT and extend OLED lifetime, which is able to show better compensation performances.
AbstractList In this paper, we have developed a pixel compensation circuit that utilizes six LTPS TFTs and one capacitor for AMOLED displays by voltage‐programmed method. The proposed pixel circuit can compensate the threshold voltage variation of TFT and extend OLED lifetime, which is able to show better compensation performances.
Author Hsu, Wei-Chu
Lee, Chien-Ya
Jen, Ko-Ruey
Lin, Yu-Hsin
Chang, Lee-Hsun
Lin, Hong-Shen
Wu, Pi-Cheng
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crossref_primary_10_1002_sdtp_13876
Cites_doi 10.1109/LED.2006.889523
10.1109/55.644086
10.1109/JDT.2007.901555
10.1109/LED.2004.837535
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References C. L. Lin, T. T. Tsai, and Y. C. Chen, "A novel voltage-feedback pixel circuit for AMOLED display," J. Display Technol., vol. 4, No. 1, pp. 54-60, Mar. 2008.
H. J. In and O. K. Kwon, "External Compensation of Nonuniform Electrical Characteristics of Thin-Film Transistors and Degradation of OLED Devices in AMOLED Displays," IEEE Electron Device Lett., vol. 30, No. 4, (2009).
Kuei-Yu Lee, Jui-Hsin Chang, Paul C.-P. Chao and Fang-Chung Chen, 2010, "A new driving pixel circuit to lleviate AMOLED degradation, "Digest of Technical Papers - 2010 SID International Symposium, Seattle, WA, USA, vol. 40, 1340-1342, May 23 - 28, 2010).
C. C. Wu, S. D. Theiss, G. Gu, M. H. Lu, J. C. Sturm, S. Wagner, and S. R. Forrest, "Integration of organic LEDs and amorphous Si TFT's onto flexible and lightweight metal foil substrates", IEEE Electron Device Lett., vol. 18, No. 12, pp. 609-612, Dec. 1997.
C. L. Lin and Y. C. Chen, "A Novel LTPS-TFT Pixel Circuit Compensating for TFT Threshold-Voltage Shift, and OLED Degradation for AMOLED," IEEE Electron Device Lett., vol. 28, No. 2, 129-131, (2007).
Yen-Chung Lin and Han-Ping D. Shieh, 2004, "Improvement of brightness uniformity by AC driving scheme for AMOLED display," IEEE Electron Device Lett., vol. 25, no. 11, 728-730, 2004).
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Lee Kuei‐Yu (e_1_2_1_6_1) 2010; 40
e_1_2_1_2_1
References_xml – reference: C. C. Wu, S. D. Theiss, G. Gu, M. H. Lu, J. C. Sturm, S. Wagner, and S. R. Forrest, "Integration of organic LEDs and amorphous Si TFT's onto flexible and lightweight metal foil substrates", IEEE Electron Device Lett., vol. 18, No. 12, pp. 609-612, Dec. 1997.
– reference: C. L. Lin, T. T. Tsai, and Y. C. Chen, "A novel voltage-feedback pixel circuit for AMOLED display," J. Display Technol., vol. 4, No. 1, pp. 54-60, Mar. 2008.
– reference: Yen-Chung Lin and Han-Ping D. Shieh, 2004, "Improvement of brightness uniformity by AC driving scheme for AMOLED display," IEEE Electron Device Lett., vol. 25, no. 11, 728-730, 2004).
– reference: Kuei-Yu Lee, Jui-Hsin Chang, Paul C.-P. Chao and Fang-Chung Chen, 2010, "A new driving pixel circuit to lleviate AMOLED degradation, "Digest of Technical Papers - 2010 SID International Symposium, Seattle, WA, USA, vol. 40, 1340-1342, May 23 - 28, 2010).
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  publication-title: IEEE Electron Device Lett.
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  doi: 10.1109/55.644086
– ident: e_1_2_1_3_1
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– volume: 30
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Snippet In this paper, we have developed a pixel compensation circuit that utilizes six LTPS TFTs and one capacitor for AMOLED displays by voltage‐programmed method....
In this paper, we have developed a pixel compensation circuit that utilizes six LTPS TFTs and one capacitor for AMOLED displays by voltage-programmed method....
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SubjectTerms Active matrix displays
Active-matrix organic light-emitting diode (AMOLED)
Circuits
Compensation
Displays
Low temperature poly-silicon (LTPS)
Organic light emitting diodes
panel non-uniformity
Pixels
Semiconductor devices
Thin film transistors
threshold voltage
Title P-3: A New LTPS Pixel Circuit for Compensating the Variation of TFT Characteristics and Alleviating OLED Degradation
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Volume 46
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