A Load-Aware Pre-Emphasis Column Driver with 27% Settling-Time Reduction in ±18% Panel-Load RC Delay Variation for 240Hz UHD Flat-Panel Displays

📋 论文概要

该论文提出了一种负载感知预加重列驱动器，通过自适应调整预加重强度来补偿面板负载RC延迟变化，在±18%的负载变化下实现了27%的建立时间减少，适用于240Hz帧率的超高清显示。

💡 主要创新点

• 提出负载感知预加重技术，根据面板负载电阻和电容的变化动态调整预加重强度，从而补偿RC延迟变化。
• 通过自适应预加重电路，在±18%的负载变化范围内将建立时间减少27%，显著提升高分辨率显示器的数据编程速度。

🏷 关键词

📄 原文摘要

Korea 1 3 As the panel size and resolution of flat-panel displays grow, the one-horizontal (1-H) time, in which a column driver should program data voltage into a row of pixels, is reduced and becomes a main bottleneck to realize high-resolution displays [1]. An ultra-high-definition display (UHD, 3840 RGB × 2160) requires column drivers to program the data voltage within the 1.8μs 1-H time required for a frame rate of 240Hz. However, the settling time from the driver to the pixel is strictly limited by display panel load resistance (RL) and capacitance (CL). Also, the RLCL delay becomes larger as panel size grows. Although a dual-driving method, in which the column drivers are assembled at both ends of columns, can double the 1-H time and reduce the RLCL delay by a factor of 4, it increases

👥 作者与机构

Jun-Suk Bang1, Hyun-Sik Kim2, Kye-Seok Yoon1,

Sang-Han Lee1, Se-Hong Park1, Ohjo Kwon3, Choongsun Shin3, Seonki Kim3, Gyu-Hyeong Cho1 KAIST, Daejeon, Korea, 2Dankook University, Cheonan, Korea, Samsung Display, Yongin,