A 10-Bit 1280 × 720 Micro-LED Display Driver With 2-Transistor Pixel Circuits and Current-Mode Pulse Width Modulation

A 10-Bit 1280 × 720 Micro-LED Display Driver With 2-Transistor Pixel Circuits and Current-Mode Pulse Width Modulation

This study proposes a 1280 \times 720 micro-LED display driver with 10-bit current-mode pulse width modulation. A two-transistor pixel circuit and a precharge scheme are proposed. A 1280 \times 720 micro-LED display driver with 3969 pixels per inch was fabricated using standard 0.18- \mu \text{m...

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Veröffentlicht in:IEEE solid-state circuits letters 2022, Vol.5, p.134-137
Hauptverfasser: Lee, Pei-Yi Lai, Li, Sheng Hui, Hung, Tzu Yi, Yang, Ya-Wen, Li, Sih-Han, Sun, Jian-Jhih, Lin, Chih-Wei David, Lu, Chih-Wen, Fang, Yen-Hsiang, Kuo, Wei-Hung, Huang, Li-Chun, Su, Guo-Dung John, Chen, Poki
Format: Artikel
Sprache:eng
Schlagworte:
Arrays
Circuits
Discharges (electric)
Light emitting diodes
Micro-LED display
micro-LED display driver
Pixels
Power consumption
Pulse duration modulation
Pulse width modulation
Semiconductor devices
Switches
Switching circuits
Transistors
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Beschreibung
Zusammenfassung:This study proposes a 1280 \times 720 micro-LED display driver with 10-bit current-mode pulse width modulation. A two-transistor pixel circuit and a precharge scheme are proposed. A 1280 \times 720 micro-LED display driver with 3969 pixels per inch was fabricated using standard 0.18- \mu \text{m} CMOS technology. The measured maximal DNL and INL values were 0.33 and 1 LSB, respectively. A 1280 \times 720 common-cathode micro-LED array was bonded on the display driver chip; hence, the feasibility of the display driver was verified. The display was successfully lit up at a 90-Hz frame rate and a power consumption of 76.3 mW.
ISSN:2573-9603
2573-9603
DOI:10.1109/LSSC.2022.3174137