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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)
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Han Cheol Lee, Eun Kyo Jung, Hwarim Im, Yong-Sang Kim
Sungkyunkwan University Suwon South Korea
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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.
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)
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Eun Kyo Jung, Hwarim Im, Yong-Sang Kim
Sungkyunkwan University Suwon South Korea
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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.
63.3 - An Enhanced MicroLED Pixel Circuit: Achieving Low Error Rates Through Stable Current Generation with LTPO Technology (11:20 AM - 11:40 AM)
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Yan Li, Hwarim Im, Yong-Sang Kim, Kook-Chul Moon, Hye-Won Woo
Sungkyunkwan University Suwon South Korea
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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%.