A low-power metal–oxide scan driver circuit outputting non-overlapping pulses with DC power-supplied buffer
This paper proposes a novel metal–oxide (MOx) thin-film transistors (TFT)-based scan driver circuit with a DC power-supplied buffer. This circuit has two parts: a ‘carry generation block (CGB)’ and an ‘output generation block (OGB).’ The CGB generates a carry pulse by the bootstrapping effect of pul...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2025-01-01
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| Series: | Journal of Information Display |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/15980316.2024.2354290 |
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| author | HyeongMin Kim JungSuk Oh YiKyoung You SangWoon Lee KeeChan Park |
| author_facet | HyeongMin Kim JungSuk Oh YiKyoung You SangWoon Lee KeeChan Park |
| author_sort | HyeongMin Kim |
| collection | DOAJ |
| description | This paper proposes a novel metal–oxide (MOx) thin-film transistors (TFT)-based scan driver circuit with a DC power-supplied buffer. This circuit has two parts: a ‘carry generation block (CGB)’ and an ‘output generation block (OGB).’ The CGB generates a carry pulse by the bootstrapping effect of pull-up TFT with the aid of clock signal; clock-supplied bootstrapping. Then the OGB is controlled by the carry pulse, and the output pulse is generated by the bootstrapping effect of pull-up buffer TFT with DC power supply; DC-supplied bootstrapping. In the proposed circuit, the pull-up TFT in CGB does not need to have wide dimensions because the carry signal is separated from the large capacitive load in the pixel area. Accordingly, the capacitive load of the clock signal is significantly reduced, and the dynamic power consumption associated with clock toggling decreases remarkably compared with the conventional scan driver circuit that uses the clock-supplied bootstrapping for the wide output buffer TFT. In addition, a bootstrapping inverter in OGB makes the output pulse width the same as the clock-high duration, preventing the output pulses from overlapping, which is required for most of the organic light-emitting diode (OLED) pixel circuits with in-pixel compensation. |
| format | Article |
| id | doaj-art-2e67f8f21aff496783fe428e49c4b870 |
| institution | Kabale University |
| issn | 1598-0316 2158-1606 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of Information Display |
| spelling | doaj-art-2e67f8f21aff496783fe428e49c4b8702025-01-18T14:43:36ZengTaylor & Francis GroupJournal of Information Display1598-03162158-16062025-01-012611810.1080/15980316.2024.2354290A low-power metal–oxide scan driver circuit outputting non-overlapping pulses with DC power-supplied bufferHyeongMin Kim0JungSuk Oh1YiKyoung You2SangWoon Lee3KeeChan Park4School of Electrical and Electronics Engineering, Konkuk University, Seoul, KoreaSchool of Electrical and Electronics Engineering, Konkuk University, Seoul, KoreaSchool of Electrical and Electronics Engineering, Konkuk University, Seoul, KoreaSchool of Electrical and Electronics Engineering, Konkuk University, Seoul, KoreaSchool of Electrical and Electronics Engineering, Konkuk University, Seoul, KoreaThis paper proposes a novel metal–oxide (MOx) thin-film transistors (TFT)-based scan driver circuit with a DC power-supplied buffer. This circuit has two parts: a ‘carry generation block (CGB)’ and an ‘output generation block (OGB).’ The CGB generates a carry pulse by the bootstrapping effect of pull-up TFT with the aid of clock signal; clock-supplied bootstrapping. Then the OGB is controlled by the carry pulse, and the output pulse is generated by the bootstrapping effect of pull-up buffer TFT with DC power supply; DC-supplied bootstrapping. In the proposed circuit, the pull-up TFT in CGB does not need to have wide dimensions because the carry signal is separated from the large capacitive load in the pixel area. Accordingly, the capacitive load of the clock signal is significantly reduced, and the dynamic power consumption associated with clock toggling decreases remarkably compared with the conventional scan driver circuit that uses the clock-supplied bootstrapping for the wide output buffer TFT. In addition, a bootstrapping inverter in OGB makes the output pulse width the same as the clock-high duration, preventing the output pulses from overlapping, which is required for most of the organic light-emitting diode (OLED) pixel circuits with in-pixel compensation.https://www.tandfonline.com/doi/10.1080/15980316.2024.2354290Organic light-emitting diode (OLED) displayscan driver circuitdouble-gate (DG) metal-oxide (MOx) thin-film transistor (TFT)depletion modelow-power consumption |
| spellingShingle | HyeongMin Kim JungSuk Oh YiKyoung You SangWoon Lee KeeChan Park A low-power metal–oxide scan driver circuit outputting non-overlapping pulses with DC power-supplied buffer Journal of Information Display Organic light-emitting diode (OLED) display scan driver circuit double-gate (DG) metal-oxide (MOx) thin-film transistor (TFT) depletion mode low-power consumption |
| title | A low-power metal–oxide scan driver circuit outputting non-overlapping pulses with DC power-supplied buffer |
| title_full | A low-power metal–oxide scan driver circuit outputting non-overlapping pulses with DC power-supplied buffer |
| title_fullStr | A low-power metal–oxide scan driver circuit outputting non-overlapping pulses with DC power-supplied buffer |
| title_full_unstemmed | A low-power metal–oxide scan driver circuit outputting non-overlapping pulses with DC power-supplied buffer |
| title_short | A low-power metal–oxide scan driver circuit outputting non-overlapping pulses with DC power-supplied buffer |
| title_sort | low power metal oxide scan driver circuit outputting non overlapping pulses with dc power supplied buffer |
| topic | Organic light-emitting diode (OLED) display scan driver circuit double-gate (DG) metal-oxide (MOx) thin-film transistor (TFT) depletion mode low-power consumption |
| url | https://www.tandfonline.com/doi/10.1080/15980316.2024.2354290 |
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