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1.福州大学 物理与信息工程学院 平板显示技术国家地方联合工程实验室, 福建 福州 350108
2.中国福建光电信息科学与技术创新实验室(闽都创新实验室), 福建 福州 350108
Received:07 November 2022,
Revised:27 December 2022,
Published:05 July 2023
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LI Yao, JIANG Hao-nan, ZHOU Zi-ping, et al. Optical design of super miniature Micro-LED projection[J]. Chinese journal of liquid crystals and displays, 2023, 38(7): 910-918.
LI Yao, JIANG Hao-nan, ZHOU Zi-ping, et al. Optical design of super miniature Micro-LED projection[J]. Chinese journal of liquid crystals and displays, 2023, 38(7): 910-918. DOI: 10.37188/CJLCD.2022-0216.
随着微米级像素尺寸的微型自发光二极管(Micro-LED,μLED)的出现和发展,采用μLED作为光源和像源的超微型投影光学引擎成为了可能,其极大简化了传统投影显示光学引擎的结构。本文提出了一种基于μLED的超微型投影光学引擎,基于现有3.302 mm(0.13 in)的μLED显示芯片设计了高像质的微型投影镜头。针对μLED的光分布特性,优化μLED发散角度与微投影镜头的光瞳匹配,有效提升了μLED微投影光学系统的光能利用率。结果表明,所设计的μLED微投影显示光学引擎体积仅有18.35 mm
3
,投影镜头中心视场的MTF值在截止频率处超过0.57。该μLED微投影显示光学引擎较好地实现了系统体积与成像像质的均衡,未来在AR/VR等近眼显示设备上具有广泛的应用前景。
With the emergence and development of self-luminous micron-pixel-sized Micro-LED (Micro light-emitting diode, μLED), using μLED as the light and image source have become possible for ultra-compact projection optical engines. It greatly simplifies the structure of traditional projection display optical engines. In this paper, a μLED-based super miniature projection optical engine is proposed, and a high image quality pico-projection lens is designed based on 3.302 mm(0.13 in) μLED display chip. The divergence angle of μLED display chip matched with the pupil of pico-projection lens is optimized according to the light distribution characteristics of μLED chip, which effectively improves the light efficiency of μLED based pico-projection optical system. The results show that the volume of the system is only 18.35 mm
3
, and the MTF value of the center field of view of the projection lens exceeds 0.57 at the cut-off frequency. The μLED based pico-projection display optical engine achieves a good trade-off between system volume and image quality, and has a wide application prospect in near-eye display devices such as AR/VR in the future.
BRENNESHOLTZ M S . The evolution of projection displays: from mechanical scanners to microdisplays [J]. Journal of the Society for Information Display , 2007 , 15 ( 10 ): 759 - 774 . doi: 10.1889/1.2798815 http://dx.doi.org/10.1889/1.2798815
CHEN E G , LIU P , YU F H . Synchronized parameter optimization of the double freeform lenses illumination system used for the CF-LCoS pico-projectors [J]. Optics & Laser Technology , 2012 , 44 ( 7 ): 2080 - 2087 . doi: 10.1016/j.optlastec.2012.03.022 http://dx.doi.org/10.1016/j.optlastec.2012.03.022
CHEN E G , LIU P , YU F H . Optimization design of single freeform lens based illumination system for CF-LCoS handheld pico-projectors [J]. Optik , 2013 , 124 ( 14 ): 1912 - 1916 . doi: 10.1016/j.ijleo.2012.05.027 http://dx.doi.org/10.1016/j.ijleo.2012.05.027
LIN J Y , JIANG H X . Development of microLED [J]. Applied Physics Letters , 2020 , 116 ( 10 ): 100502 . doi: 10.1063/1.5145201 http://dx.doi.org/10.1063/1.5145201
LIU Z J , CHONG W C , WONG K M , et al . GaN-based LED micro-displays for wearable applications [J]. Microelectronic Engineering , 2015 , 148 : 98 - 103 . doi: 10.1016/j.mee.2015.09.007 http://dx.doi.org/10.1016/j.mee.2015.09.007
HU X P , CAI J H , LIU Y Z , et al . Design of inclined omni-directional reflector for sidewall-emission-free micro-scale light-emitting diodes [J]. Optics & Laser Technology , 2022 , 154 : 108335 . doi: 10.1016/j.optlastec.2022.108335 http://dx.doi.org/10.1016/j.optlastec.2022.108335
LIU Z J , LIN C H , HYUN B R , et al . Micro-light-emitting diodes with quantum dots in display technology [J]. Light: Science & Applications , 2020 , 9 ( 1 ): 83 . doi: 10.1038/s41377-020-0268-1 http://dx.doi.org/10.1038/s41377-020-0268-1
周自平 , 黎垚 , 严银菓 , 等 . Micro-LED应用于近眼显示的现状与趋势 [J]. 液晶与显示 , 2022 , 37 ( 6 ): 661 - 679 . doi: 10.37188/CJLCD.2022-0068 http://dx.doi.org/10.37188/CJLCD.2022-0068
ZHOU Z P , LI Y , YAN Y G , et al . Current situation and trend of Micro-LED application in near-eye display [J]. Chinese Journal of Liquid Crystals and Displays , 2022 , 37 ( 6 ): 661 - 679 . (in Chinese) . doi: 10.37188/CJLCD.2022-0068 http://dx.doi.org/10.37188/CJLCD.2022-0068
钱立勇 , 朱向冰 , 崔海田 , 等 . 微型投影系统光路设计 [J]. 激光技术 , 2018 , 42 ( 3 ): 385 - 389 . doi: 10.7510/jgjs.issn.1001-3806.2018.03.018 http://dx.doi.org/10.7510/jgjs.issn.1001-3806.2018.03.018
QIAN L Y , ZHU X B , CUI H T , et al . Design of optical path for miniature projection systems [J]. Laser Technology , 2018 , 42 ( 3 ): 385 - 389 . (in Chinese) . doi: 10.7510/jgjs.issn.1001-3806.2018.03.018 http://dx.doi.org/10.7510/jgjs.issn.1001-3806.2018.03.018
LIU Z J , WONG K M , KEUNG C W , et al . Monolithic LED microdisplay on active matrix substrate using flip-chip technology [J]. IEEE Journal of Selected Topics in Quantum Electronics , 2009 , 15 ( 4 ): 1298 - 1302 . doi: 10.1109/jstqe.2009.2015675 http://dx.doi.org/10.1109/jstqe.2009.2015675
CHONG W C , WONG K M , LIU Z J , et al . A novel full-color 3LED projection system using R-G-B light emitting diodes on silicon (LEDoS) micro-displays [J]. SID Symposium Digest of Technical Papers , 2013 , 44 ( 1 ): 838 - 841 .t. doi: 10.1002/j.2168-0159.2013.tb06348.x http://dx.doi.org/10.1002/j.2168-0159.2013.tb06348.x
GROßMANN C , RIEHEMANN S , NOTNI G , et al . OLED-based pico-projection system [J]. Journal of the Society for Information Display , 2012 , 18 ( 10 ): 821 - 826 .
ITONAGA K , SUDO S , NISHIKAWA J , et al . The world smallest OLED microdisplay projection device design methodology [J]. Journal of the Society for Information Display , 2020 , 51 ( 1 ): 683 - 686 . doi: 10.1002/sdtp.13960 http://dx.doi.org/10.1002/sdtp.13960
LEDINSIDE . JBD正式发布用于智能眼镜的Micro LED光引擎系列产品 [EB/OL]. ( 2021-11-30 )[ 2021-12-15 ]. https://www.sohu.com/a/504428432_128242 https://www.sohu.com/a/504428432_128242 . doi: 10.25009/eb.v12i29 http://dx.doi.org/10.25009/eb.v12i29
LEDINSIDE . JBD officially launches micro LED light engine series for smart glasses [EB/OL]. ( 2021-11-30 )[ 2021-12-15 ]. https://www.sohu.com/a/504428432_128242. https://www.sohu.com/a/504428432_128242. (in Chinese) . doi: 10.25009/eb.v12i29 http://dx.doi.org/10.25009/eb.v12i29
李继军 , 聂晓梦 , 甄威 , 等 . 显示技术比较及新进展 [J]. 液晶与显示 , 2018 , 33 ( 1 ): 74 - 84 . doi: 10.3788/YJYXS20183301.0074 http://dx.doi.org/10.3788/YJYXS20183301.0074
LI J J , NIE X M , ZHEN W , et al . New developments and comparisons in display technology [J]. Chinese Journal of Liquid Crystals and Displays , 2018 , 33 ( 1 ): 74 - 84 . (in Chinese) . doi: 10.3788/YJYXS20183301.0074 http://dx.doi.org/10.3788/YJYXS20183301.0074
KAWANISHI H , ONUMA H , MAEGAWA M , et al . High-resolution (1 000 to over 3 000 ppi) full-color “silicon display” for augmented and mixed reality [C]. The 26th International Display Workshops (IDW ' 19 ). Sapporo Convention Center : ITE and SID , 2019: 641 - 644 . doi: 10.36463/idw.2019.0641 http://dx.doi.org/10.36463/idw.2019.0641
CHANG C L , BANG K , WETZSTEIN G , et al . Toward the next-generation VR/AR optics: a review of holographic near-eye displays from a human-centric perspective [J]. Optica , 2020 , 7 ( 11 ): 1563 - 1578 . doi: 10.1364/optica.406004 http://dx.doi.org/10.1364/optica.406004
王康 , 段洁 , 周见红 , 等 . 便携式投影仪投影物镜设计 [J]. 应用光学 , 2019 , 40 ( 2 ): 316 - 322 . doi: 10.5768/jao201940.0205003 http://dx.doi.org/10.5768/jao201940.0205003
WANG K , DUAN J , ZHOU J H , et al . Design on projection objective of portable projector [J]. Journal of Applied Optics , 2019 , 40 ( 2 ): 316 - 322 . (in Chinese) . doi: 10.5768/jao201940.0205003 http://dx.doi.org/10.5768/jao201940.0205003
赵星 , 方志良 , 崔继承 , 等 . 微型投影机光学引擎的研究 [J]. 光学学报 , 2007 , 27 ( 5 ): 913 - 918 . doi: 10.3321/j.issn:0253-2239.2007.05.029 http://dx.doi.org/10.3321/j.issn:0253-2239.2007.05.029
ZHAO X , FANG Z L , CUI J C , et al . Study on the optical engine of the mini-projector [J]. Acta Optica Sinica , 2007 , 27 ( 5 ): 913 - 918 . (in Chinese) . doi: 10.3321/j.issn:0253-2239.2007.05.029 http://dx.doi.org/10.3321/j.issn:0253-2239.2007.05.029
冯思悦 , 梁静秋 , 梁中翥 , 等 . LED微阵列投影系统设计 [J]. 中国光学 , 2019 , 12 ( 1 ): 88 - 96 . doi: 10.3788/co.20191201.0088 http://dx.doi.org/10.3788/co.20191201.0088
FENG S Y , LIANG J Q , LIANG Z Z , et al . Design of projection system for a micro-LED array [J]. Chinese Optics , 2019 , 12 ( 1 ): 88 - 96 . (in Chinese) . doi: 10.3788/co.20191201.0088 http://dx.doi.org/10.3788/co.20191201.0088
JIANG H N , LIN Z B , LI Y , et al . Projection optical engine design based on tri-color LEDs and digital light processing technology [J]. Applied Optics , 2021 , 60 ( 23 ): 6971 - 6977 . doi: 10.1364/ao.432355 http://dx.doi.org/10.1364/ao.432355
YAN S W , LIU Y B , WANG R N , et al . Design and fabrication of micro-lens array based on Micro-LED projector [J]. SID Symposium Digest of Technical Papers , 2018 , 49 ( S1 ): 688 - 691 . doi: 10.1002/sdtp.12816 http://dx.doi.org/10.1002/sdtp.12816
顾新宇 . GaN-LED出射光束整形和出光效率提高 [D]. 苏州 : 苏州大学 , 2016 .
GU X Y . Beam shaping and light extraction efficiency enhancement of GaN-LED [D]. Suzhou : Soochow University , 2016 . (in Chinese)
芮大为 . LED微型投影光源的二次光学设计 [D]. 成都 : 电子科技大学 , 2012 .
RUI D W . Secondary optical design of LED miniature projection light source [D]. Chengdu : University of Electronic Science and Technology of China , 2012 . (in Chinese)
彭晨晖 . 投影显示用高亮度RGB LED光源及照明系统研究 [D]. 西安 : 中国科学院研究生院 , 2011 . doi: 10.1109/jdt.2011.2132693 http://dx.doi.org/10.1109/jdt.2011.2132693
PENG C H . Study on high brightness RGB LEDs and illumination system in projection display application [D]. Xi'an : University of Chinese Academy of Sciences , 2011 . (in Chinese) . doi: 10.1109/jdt.2011.2132693 http://dx.doi.org/10.1109/jdt.2011.2132693
WOODGATE G J , HARROLD J . Micro-optical systems for Micro-LED displays [J]. SID Symposium Digest of Technical Papers , 2018 , 49 ( 1 ): 1559 - 1562 . doi: 10.1002/sdtp.12285 http://dx.doi.org/10.1002/sdtp.12285
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