A 600ch 10b Source-Driver IC with a Charge-Modulation DAC Achieving 1-Horizontal Time of 1.5μs Suitable for 240Hz-Frame-Rate Mobile Displays

📋 论文概要

本文提出了一款600通道10位源极驱动器IC，采用电荷调制DAC架构，实现了1.5μs的水平时间，适用于240Hz帧率的高分辨率显示。该设计通过提高DAC的面积效率，解决了在有限芯片面积内集成更多源通道以提升空间分辨率的难题。

💡 主要创新点

• 提出电荷调制DAC（Charge-Modulation DAC）架构，显著提升每面积比特分辨率，从而在相同芯片面积下集成更多源通道。
• 实现600通道10位分辨率，水平时间仅1.5μs，支持240Hz帧率，满足高刷新率显示需求。
• 通过优化DAC和驱动电路设计，在保持高颜色深度的同时提高了通道集成度。

🏷 关键词

📄 原文摘要

with digital-to-analog conversion (DAC) and signal drive into pixels, drastically impact image quality in displays. As the demand for higher spatial resolution to enhance visual realism grows, even in mobile displays, a larger number of source channels needs to be integrated into each SD-IC. The display’s color depth is correlated with the data resolution of the DAC, which occupies the majority of the channel die area. Thus, boosting area efficiency (bit-resolution per area) in SD-IC design is vital for integrating more source channels on a single chip without compromising color depth. Also, high-frame-rate displays (beyond 60Hz) are gaining traction due to their smoother transitions, lower motion blur, and overall improved user

👥 作者与机构

Yousung Park1, Gyeong-Gu Kang1, Gyu-Wan Lim1, Seunghwa Shin1,

Yong-Sung Ahn2, Wonyoun Kim2, Hyun-Sik Kim1 Korea Advanced Institute of Science and Technology, Daejeon, Korea LX Semicon, Seoul, Korea 1 2 Source driver ICs (SD-ICs), tasked