液晶与显示2025，Vol.40Issue(6)：818-826,9.DOI:10.37188/CJLCD.2025-0041
集成亚波长金属光栅的AlGaInP基红光Micro-LED线偏振光发射
Linearly polarized light emission of AlGaInP-based red light Micro-LED with subwavelength metal grating
摘要
Abstract
Micro-LED display technology is regarded as the most promising next-generation display technology due to its advantages such as high brightness,high resolution,and high contrast.The development and application of technologies such as 3D display,medical detection,information encryption,visible light communication,efficient liquid crystal backlight display,polarized microscopy,and sensing have introduced new requirements for Micro-LEDs to achieve high extinction ratio polarized light output.To realize the design of a miniaturized red-light Micro-LED device capable of emitting linearly polarized light,this study integrates subwavelength metal gratings on the surface of AlGaInP-based red-light Micro-LEDs and employs the finite-difference time-domain(FDTD)method to conduct theoretical analysis and structural optimization of the metal gratings.The results demonstrate that by optimizing the grating parameters and the thickness of the dielectric layer,a red-light Micro-LED with a chip size of 50 μm achieves an extinction ratio of 26 dB,enabling high extinction ratio linearly polarized light output.The AlGaInP-based linearly polarized Micro-LED designed in this study exhibits significant potential for applications in the field of 3D Micro-LED displays.关键词
发光二极管/偏振/金属光栅/时域有限差分法Key words
light-emitting diodes/polarization/metal gratings/FDTD method分类
电子信息工程引用本文复制引用
王雅蔚,秦余欣,李斌,王惟彪,梁静秋,郑凯丰,吕金光,郭广通,马思瑶,陈宇鹏,赵百轩,赵莹泽,聂海涛..集成亚波长金属光栅的AlGaInP基红光Micro-LED线偏振光发射[J].液晶与显示,2025,40(6):818-826,9.基金项目
国家重点研发计划(No.2022YFB3604702) （No.2022YFB3604702）
吉林省科技发展计划(No.20240302024GX)Supported by the National Key Research and Development Program of China(No.2022YFB3604702) （No.20240302024GX）
Jilin Province Science and Technology Development Program(No.20240302024GX) （No.20240302024GX）
