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
[ "黎垚(1996—),男,湖北十堰人,硕士研究生,2019年于长江大学获得学士学位,主要从事微投影显示方面的研究。E-mail:296964850@qq.com" ]
[ "陈恩果(1984—),男,福建福州人,博士,教授,2013年于浙江大学获得博士学位,主要从事新型显示技术方面的研究。E-mail:ceg@fzu.edu.cn" ]
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黎垚, 江昊男, 周自平, 等. 超微型Micro-LED投影显示光学引擎设计[J]. 液晶与显示, 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.
黎垚, 江昊男, 周自平, 等. 超微型Micro-LED投影显示光学引擎设计[J]. 液晶与显示, 2023,38(7):910-918. DOI: 10.37188/CJLCD.2022-0216.
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.
Micro-LED近眼显示微投影显示光学设计系统效率
Micro-LEDnear-eye displaypico-projection displayoptical designsystem efficiency
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: 10.1889/1.2798815http://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.2012.03.022http://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.2012.05.027http://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: 10.1063/1.5145201http://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.2015.09.007http://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.2022.108335http://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/s41377-020-0268-1http://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.2022-0068http://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.2022-0068http://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.1001-3806.2018.03.018http://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.1001-3806.2018.03.018http://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.2009.2015675http://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.xhttp://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.13960http://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_128242https://www.sohu.com/a/504428432_128242. doi: 10.25009/eb.v12i29http://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.v12i29http://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/YJYXS20183301.0074http://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/YJYXS20183301.0074http://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.2019.0641http://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.406004http://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/jao201940.0205003http://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/jao201940.0205003http://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:0253-2239.2007.05.029http://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:0253-2239.2007.05.029http://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.20191201.0088http://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.20191201.0088http://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.432355http://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.12816http://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.2011.2132693http://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.2011.2132693http://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.12285http://dx.doi.org/10.1002/sdtp.12285
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