LTPS-TFT Pixel Circuit Compensating for TFT Threshold Voltage Shift and IR-Drop on the Power Line for AMOLED Displays
We propose a new pixel design for the active matrix organic light-emitting diode (AMOLED) using low-temperature polycrystalline silicon thin-film transistors (LTPS-TFTs). The proposed pixel is composed of four switching TFTs, one driving TFT (DTFT), and one capacitor. The simulation results are perf...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2012/270865 |
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| author | Ching-Lin Fan Min-Chi Shang Wei-Chun Lin Hsiu-Chen Chang Kuang-Chi Chao Bo-Liang Guo |
| author_facet | Ching-Lin Fan Min-Chi Shang Wei-Chun Lin Hsiu-Chen Chang Kuang-Chi Chao Bo-Liang Guo |
| author_sort | Ching-Lin Fan |
| collection | DOAJ |
| description | We propose a new pixel design for the active matrix organic light-emitting diode (AMOLED) using low-temperature polycrystalline silicon thin-film transistors (LTPS-TFTs). The proposed pixel is composed of four switching TFTs, one driving TFT (DTFT), and one capacitor. The simulation results are performed by AIM-SPICE software. The error rate of OLED output current with (threshold voltage) variation (0.3 V) and power line drop by 1 V are improved to about 1.67% and 15%, respectively. Thus, the proposed pixel circuit can successfully overcome drawbacks suffered from DTFT threshold voltage deviation and IR-drop on power line. |
| format | Article |
| id | doaj-art-2c98107c4c644b2abdbced1198a7583f |
| institution | OA Journals |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-2c98107c4c644b2abdbced1198a7583f2025-08-20T02:24:04ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422012-01-01201210.1155/2012/270865270865LTPS-TFT Pixel Circuit Compensating for TFT Threshold Voltage Shift and IR-Drop on the Power Line for AMOLED DisplaysChing-Lin Fan0Min-Chi Shang1Wei-Chun Lin2Hsiu-Chen Chang3Kuang-Chi Chao4Bo-Liang Guo5Department of Electronic Engineering, National Taiwan University of Science and Technology, 43 Section 4, Keelung Road, Taipei 106, TaiwanGraduate Institute of Electro-Optical Engineering, National Taiwan University of Science and Technology, 43 Section 4, Keelung Road, Taipei 106, TaiwanGraduate Institute of Electro-Optical Engineering, National Taiwan University of Science and Technology, 43 Section 4, Keelung Road, Taipei 106, TaiwanGraduate Institute of Electro-Optical Engineering, National Taiwan University of Science and Technology, 43 Section 4, Keelung Road, Taipei 106, TaiwanDepartment of Electronic Engineering, National Taiwan University of Science and Technology, 43 Section 4, Keelung Road, Taipei 106, TaiwanDepartment of Electronic Engineering, National Taiwan University of Science and Technology, 43 Section 4, Keelung Road, Taipei 106, TaiwanWe propose a new pixel design for the active matrix organic light-emitting diode (AMOLED) using low-temperature polycrystalline silicon thin-film transistors (LTPS-TFTs). The proposed pixel is composed of four switching TFTs, one driving TFT (DTFT), and one capacitor. The simulation results are performed by AIM-SPICE software. The error rate of OLED output current with (threshold voltage) variation (0.3 V) and power line drop by 1 V are improved to about 1.67% and 15%, respectively. Thus, the proposed pixel circuit can successfully overcome drawbacks suffered from DTFT threshold voltage deviation and IR-drop on power line.http://dx.doi.org/10.1155/2012/270865 |
| spellingShingle | Ching-Lin Fan Min-Chi Shang Wei-Chun Lin Hsiu-Chen Chang Kuang-Chi Chao Bo-Liang Guo LTPS-TFT Pixel Circuit Compensating for TFT Threshold Voltage Shift and IR-Drop on the Power Line for AMOLED Displays Advances in Materials Science and Engineering |
| title | LTPS-TFT Pixel Circuit Compensating for TFT Threshold Voltage Shift and IR-Drop on the Power Line for AMOLED Displays |
| title_full | LTPS-TFT Pixel Circuit Compensating for TFT Threshold Voltage Shift and IR-Drop on the Power Line for AMOLED Displays |
| title_fullStr | LTPS-TFT Pixel Circuit Compensating for TFT Threshold Voltage Shift and IR-Drop on the Power Line for AMOLED Displays |
| title_full_unstemmed | LTPS-TFT Pixel Circuit Compensating for TFT Threshold Voltage Shift and IR-Drop on the Power Line for AMOLED Displays |
| title_short | LTPS-TFT Pixel Circuit Compensating for TFT Threshold Voltage Shift and IR-Drop on the Power Line for AMOLED Displays |
| title_sort | ltps tft pixel circuit compensating for tft threshold voltage shift and ir drop on the power line for amoled displays |
| url | http://dx.doi.org/10.1155/2012/270865 |
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