科技新知 [111年09-10月]

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

文章出處：IEEE Journal of Solid-State Circuits Letters, vol. 5, pp. 134-137, May, 2022.

作者：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, and Poki Chen

任職單位及部門：陽明交通大學光電系統所

    Abstract：

This study proposes a 1280 × 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 × 720 micro-LED display driver with 3969 pixels per inch was fabricated using standard 0.18-m CMOS technology. The measured maximal DNL and INL values were 0.33 and 1 LSB, respectively. A 1280 × 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.


文章摘要：

本研究提出了一種具有 10 位電流模式脈寬調變的 1280 × 720 micro-LED 顯示驅動晶片電路。本文提出一種雙電晶體像素電路和預充電方案。使用標準 0.18-m CMOS 技術製造了每英寸 3969 像素的 1280 × 720 微型 LED 顯示驅動晶片。測得的最大 DNL 和 INL 值分別為 0.33 和 1 LSB。顯示驅動晶片上貼合了1280×720共陰極Micro-LED陣列，驗證了顯示驅動的可行性。顯示器以 90-Hz 的幀速率和 76.3 mW 的功耗成功點亮顯示器。


 

網頁連結：https://ieeexplore.ieee.org/document/9772068