A Compact 10b Source Driver IC with Delta-Sigma Pulse Width Modulation for Low-Voltage Digital Interpolation Achieving 1884µm2/Channel

📋 论文概要

该论文提出了一种紧凑型10位源极驱动器IC，采用Δ-Σ脉冲宽度调制实现低压数字插值，解决了高分辨率显示中源极驱动器通道面积大、成本高的问题。

💡 主要创新点

• 提出基于Δ-Σ脉冲宽度调制的数字插值方法，替代传统电阻串DAC，减小通道面积。
• 实现低压工作下的高精度10位转换，适用于高分辨率显示应用。

🏷 关键词

📄 原文摘要

flagship smartphones has contributed to better quality 3D image rendering and mobile gaming applications. However, high-resolution displays require source-driver ICs (SD-IC) with more channels, significantly increasing the silicon area and cost. One of the effective approaches for compact channel area is utilizing the piecewise-linear interpolation method for a digial-to-analog conveter (DAC), which is required for each channel in the SD-IC [1-5]. Figure 6.9.1 (top) depicts the conventional interpolation sub-DAC topologies in which a resistor-string DAC (RDAC) selects two adjacent gamma voltages (VH and VL) and the sub DAC linearly divides between VH and VL. DAC-embedded amplifiers [1,2] interpolate between VH and VL by adjusting the

👥 作者与机构

Jun Yeol An1,2, Seung Hun Choi1, Jaewoong Ahn1, Seunghoon Baek2,

Youngmin Kim2, Si-Woo Kim2, Jae-Yeol Lee2, Yoon-Kyung Choi1, Hyung-Min Lee1 Korea University, Seoul, Korea Samsung Electronics, Hwaseong, Korea 1 2 Recently, higher display resolution of