A 51dB-SNR 120Hz-Scan-Rate 32×18 Segmented-VCOM LCD In-Cell Touch-Display-Driver IC with 96-Channel Compact Shunt-Sensing Self-Capacitance Analog Front-End

📋 论文概要

提出一种51dB SNR、120Hz扫描率的32×18分段VCOM LCD内嵌触摸显示驱动IC（TDDI），采用96通道紧凑分流传感技术，解决了触摸与显示集成中的信噪比和扫描速度问题。

💡 主要创新点

• 采用分段VCOM电极架构实现内嵌触摸LCD驱动，降低模块成本和厚度。
• 设计96通道紧凑分流传感电路，在高速扫描下保持高信噪比（51dB SNR）。

🏷 关键词

📄 原文摘要

display implementation have been undertaken in recent years, with several being successfully delivered to the industry and market. As a result, in-cell touch-display solutions that offer low-profile formfactor, low module cost, and simplified supply chain have extensively replaced conventional add-on touch panels. Among these, in-cell touch liquid-crystal display (LCD) using segmented-VCOM electrodes, also known as advanced in-cell touch (AIT) LCD [1] running on touch-display-driver IC (TDDI), has emerged as one of the best-performing solutions in the market. Figure 28.2.1 shows a conceptual diagram of the segmented-VCOM in-cell touch sensor configuration with an LCD panel. Unlike conventional LCD panels with one solid VCOM electrode, it is segmented into a matrix of hundreds of electrodes at

👥 作者与机构

Hongjae Jang, Hyungcheol Shin, Jaemin Lee, Changwon Yoo,

Kanghyup Chun, Ilhyun Yun Sentron, Daejeon, Korea Driven by strong market demand, various research approaches for in-cell touch