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1.东莞理工学院 电子工程与智能化学院, 广东 东莞 523808
2.东莞理工学院 机械工程学院, 广东 东莞 523808
3.华南师范大学 信息光电子科技学院, 广东 广州 510631
4.华南理工大学 发光材料与器件国家重点实验室, 广东 广州 510640
5.广州彩屏显示技术有限公司, 广东 广州 510700
[ "周 律(1999—),女,湖南衡阳人,硕士研究生,2021年于湖南文理学院芙蓉学院获得学士学位,主要从事Mini/Micro-LED制备工艺及驱动技术研究。E-mail:zhoulv2021@163.com" ]
[ "郑 华(1980—),男,湖北鄂州人,博士,副教授,2011年于华南理工大学获得博士学位,研究方向包括光电材料与器件、新型显示技术(LCD、OLED、QLED、Mini/Micro-LED等)。E-mail:zhenghua@dgut.edu.cn" ]
收稿日期:2022-05-07,
修回日期:2022-07-05,
纸质出版日期:2022-11-05
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周律, 郑华, 张声浩, 等. Micro-LED显示及其驱动技术的研究进展[J]. 液晶与显示, 2022,37(11):1395-1410.
ZHOU Lü, ZHENG Hua, ZHANG Sheng-hao, et al. Research progress of Micro-LED display and its driving technology[J]. Chinese journal of liquid crystals and displays, 2022, 37(11): 1395-1410.
周律, 郑华, 张声浩, 等. Micro-LED显示及其驱动技术的研究进展[J]. 液晶与显示, 2022,37(11):1395-1410. DOI: 10.37188/CJLCD.2022-0157.
ZHOU Lü, ZHENG Hua, ZHANG Sheng-hao, et al. Research progress of Micro-LED display and its driving technology[J]. Chinese journal of liquid crystals and displays, 2022, 37(11): 1395-1410. DOI: 10.37188/CJLCD.2022-0157.
微米发光二极管(Micro-LED)显示是一项新颖并有着广泛应用前景的技术,在显示技术中占有重要地位。Micro-LED拥有亮度高、功耗低、寿命长、响应时间短和稳定性高等优点。可以应用于虚拟现实(Virtual Reality,VR)、增强现实(Augmented Reality,AR)、手机等微小型显示器,也可应用于家用电视、会议墙等中大型显示器,在显示领域具有较好的发展潜力。虽然Micro-LED显示应用前景广阔,但其技术尚不成熟,驱动技术面临生产成本高、资源分散等问题,限制了其产业化进程。本文回顾了自2000年以来Micro-LED显示技术的发展历程和研究成果,分析了阵列制备和倒装芯片集成技术,重点研究了Micro-LED显示驱动技术。Micro-LED显示驱动技术分为无源驱动和有源驱动方式,主要介绍了无源驱动的电路原理,有源驱动的互补金属氧化物半导体驱动技术、薄膜晶体管驱动技术以及有源像素驱动电路。
Micro-LED (Micro-LED) display is a revolutionary and promising technology that has a significant impact on display technology. Micro-LED has high brightness, low power consumption, extended life, short response time, and good stability. It has good development potential in the display area and may be applied to virtual reality (VR), augmented reality (AR), mobile phone micro-displays, as well as household TV, conference wall, and other big and medium-sized displays. Although Micro-LED display has broad application prospects, its technology is still not mature, driving technology is facing high production costs, resource dispersion and other issues, limiting its industrialization process. This study examines the development process and research outcomes of Micro-LED display technology since 2000, analyzes array preparation and flip chip integration technology, and concentrates on the driving technology of Micro-LED displays. Micro-LED display driving technology is classified into two categories: passive driving and active driving. The circuit theory of passive driving, complementary metal oxide semiconductor driven by active driving, thin film transistor driving technology, and active pixel driving circuit are primarily introduced.
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