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

Pei Yi Lai Lee, Sheng Hui Li, Tzu Yi Hung, Ya Wen Yang, Sih Han Li, Jian Jhih Sun, Chih Wei David Lin, Chih Wen Lu, Yen Hsiang Fang, Wei Hung Kuo, Li Chun Huang, Guo Dung John Su, Poki Chen

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)134-137
Number of pages4
JournalIEEE Solid-State Circuits Letters
Volume5
DOIs
Publication statusPublished - 2022

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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