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Session 63 :
Micro-LED Driving Circuits
Display Electronics

Thursday, May 16 / 10:40 AM   - 11:40 AM / San Jose Convention Center, LL20BC

Chair:
Juhn Yoo, LG Display, Paju-si, South Korea

Co-Chair:
Soo-Yeon Lee, Seoul National University , Seoul, South Korea

63.1 - Integrated Scan/Emission/Sweep Driver Circuit Based on CMOS LTPS TFTs for MicroLED Displays (10:40 AM - 11:00 AM)
  • Han Cheol Lee, Eun Kyo Jung, Hwarim Im, Yong-Sang Kim
    Sungkyunkwan University Suwon South Korea


  • This paper proposes a CMOS LTPS TFT-based integrated driver circuit to generate control signals for microLED pixel circuits. The proposed circuit generates five output signals by sharing core logic without capacitors. Through simulation, the output signals are verified to remain stable.
05/16/2024 10:40 AM 05/16/2024 11:00 AM America/Los_Angeles Integrated Scan/Emission/Sweep Driver Circuit Based on CMOS LTPS TFTs for MicroLED Displays This paper proposes a CMOS LTPS TFT-based integrated driver circuit to generate control signals for microLED pixel circuits. The proposed circuit generates five output signals by sharing core logic without capacitors. Through simulation, the output signals are verified to remain stable. San Jose McEnery Convention Center LL20BC Han Cheol Lee, Eun Kyo Jung, Hwarim Im, Yong-Sang Kim
63.2 - Metal Oxide Thin-Film Transistors-Based Pixel Circuit with Progressive Emission Using Pulse Width Modulation for Micro Light-Emitting Diode Displays (11:00 AM - 11:20 AM)
  • Eun Kyo Jung, Hwarim Im, Yong-Sang Kim
    Sungkyunkwan University Suwon South Korea


  • This paper proposes a metal-oxide thin-film transistor (TFT)-based microLED pixel circuit. Pulse-width modulation (PWM) and progressive emission are applied to the circuit. The threshold voltage (VTH) compensation and data addressing operate using a series capacitor structure connected through switching TFTs. Stable operations for the proposed circuit are verified.
05/16/2024 11:00 AM 05/16/2024 11:20 AM America/Los_Angeles Metal Oxide Thin-Film Transistors-Based Pixel Circuit with Progressive Emission Using Pulse Width Modulation for Micro Light-Emitting Diode Displays This paper proposes a metal-oxide thin-film transistor (TFT)-based microLED pixel circuit. Pulse-width modulation (PWM) and progressive emission are applied to the circuit. The threshold voltage (VTH) compensation and data addressing operate using a series capacitor structure connected through switching TFTs. Stable operations for the proposed circuit are verified. San Jose McEnery Convention Center LL20BC Eun Kyo Jung, Hwarim Im, Yong-Sang Kim
63.3 - An Enhanced MicroLED Pixel Circuit: Achieving Low Error Rates Through Stable Current Generation with LTPO Technology (11:20 AM - 11:40 AM)
  • Yan Li, Hye-Won Woo, Hwarim Im, Kook-Chul Moon, Yong-Sang Kim
    Sungkyunkwan University Suwon South Korea


  • This paper proposes a microLED pixel circuit utilizing low-temperature polycrystalline oxide (LTPO) technology. Unlike conventional designs, this approach leverages coupling effects to nullify threshold voltages in both segments without signal line augmentation. A more stable emission current is achieved through altered emission methods, yielding an error rate below 4%.
05/16/2024 11:20 AM 05/16/2024 11:40 AM America/Los_Angeles An Enhanced MicroLED Pixel Circuit: Achieving Low Error Rates Through Stable Current Generation with LTPO Technology This paper proposes a microLED pixel circuit utilizing low-temperature polycrystalline oxide (LTPO) technology. Unlike conventional designs, this approach leverages coupling effects to nullify threshold voltages in both segments without signal line augmentation. A more stable emission current is achieved through altered emission methods, yielding an error rate below 4%. San Jose McEnery Convention Center LL20BC Yan Li, Hye-Won Woo, Hwarim Im, Kook-Chul Moon, Yong-Sang Kim