液晶与显示2025，Vol.40Issue(11)：1636-1646,11.DOI:10.37188/CJLCD.2025-0151
有源矩阵有机发光二极管显示驱动架构的演变
Evolution of active-matrix organic light-emitting diode display driving architectures
摘要
Abstract
Active-matrix organic light-emitting diode(AMOLED)display technology has become a mainstream solution in next-generation displays due to its high contrast ratio,rapid response,and flexibility.The pixel driving architecture critically determines display quality and energy efficiency.This paper systematically reviews the technical evolution of AMOLED pixel driving circuits:From the early simplified 2T1C architecture to the pipelined compensation architectures(e.g.,6T1C/7T1C)enabling real-time internal compensation of threshold voltage(Vth);Further advancing to LTPO wide-frequency driving architectures,which leverage hybrid low-temperature polycrystalline silicon and oxide(LTPS&Oxide)TFT backplane technology to support adaptive refresh rate adjustment(1～120 Hz),significantly reducing dynamic power consumption;And innovating with the One-Time Driving(OTD)architecture,which adopts nonvolatile memory and in-memory computing design.This approach decouples Vth latching from data refreshing,reducing the compensation frequency to 1/N of the data refresh rate(e.g.,N=20,compensating Vth once per 20 frames),thereby slashing dynamic power consumption by>50%at high refresh rates.The paper thoroughly analyzes circuit principles,timing diagram,and power models of these architectures.It highlights that the integration of high-mobility rare-earth-doped oxide TFTs(e.g.,Ln-IZO)with the OTD architecture will pave a new technical path for low-cost,low-power AMOLED displays.关键词
AMOLED像素驱动电路/阈值电压补偿/LTPO技术/一次锁存(OTD)架构/动态功耗Key words
AMOLED pixel driving circuit/threshold voltage compensation/LTPO technology/one-time driving(OTD)architecture/dynamic power consumption分类
信息技术与安全科学引用本文复制引用
周雷,刘嘉杰,徐苗,吴为敬,彭俊彪..有源矩阵有机发光二极管显示驱动架构的演变[J].液晶与显示,2025,40(11):1636-1646,11.基金项目
新材料重大专项项目(No.2024ZD0604100) （No.2024ZD0604100）
国家重点研发计划(No.2023YFB3608803,No.2021YFB3600800) （No.2023YFB3608803,No.2021YFB3600800）
广东省自然科学基金(No.2024A1515010397) Supported by Advanced Materials-National Science and Technology Major Project(No.2024ZD0604100) （No.2024A1515010397）
National Key Research and Development Program of China(No.2023YFB3608803,No.2021YFB3600800) （No.2023YFB3608803,No.2021YFB3600800）
Natural Science Foundation of Guangdong Province(No.2024A1515010397) （No.2024A1515010397）
