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Micro-light-emitting diodes with quantum dots in display technology

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Light(Science & Applications) 2020年第1期9卷 1206-1228页

作者： Zhaojun Liu Chun-Ho Lin Byung-Ryool Hyun Chin-Wei Sher Zhijian Lv Bingqing Luo Fulong Jiang Tom Wu Chih-Hsiang Ho Hao-Chung kuo Jr-Hau He Department of Electrical and Electronic Engineering Southern University of Science and TechnologyShenzhenChina School of Materials Science and Engineering University of New South Wales(UNSW)2052 SydneyNSWAustralia Department of Electronic and Computer Engineering Hong Kong University of Science and TechnologyHong KongChina Department of Photonics and Institute of Electro-Optical Engineering College of Electrical and Computer EngineeringChiao Tung University30010 HsinchuTaiwanChina School of Innovation and Entrepreneurship Southern University of Science and TechnologyShenzhenChina Raysolution LLC San JoseCA 95129USA Department of Materials Science and Engineering City University of Hong KongHong KongChina

Micro-light-emitting diodes(μ-LEDs)are regarded as the cornerstone of next-generation display technology to meet the personalised demands of advanced applications,such as mobile phones,wearable watches,virtual/augmented reality,micro-projectors and ultrahigh-definition ***,as the LED chip size shrinks to below 20μm,conventional phosphor colour conversion cannot present sufficient luminance and yield to support highresolution displays due to the low absorption *** emergence of quantum dot(QD)materials is expected to fill this gap due to their remarkable photoluminescence,narrow bandwidth emission,colour tuneability,high quantum yield and nanoscale size,providing a powerful full-colour solution for μ-LED ***,we comprehensively review the latest progress concerning the implementation of μ-LEDs and QDs in display technology,including μ-LED design and fabrication,large-scale μ-LED transfer and QD full-colour *** on QD stability,patterning and deposition and challenges of μ-LED displays are also ***,we discuss the advanced applications of QD-based μ-LED displays,showing the bright future of this technology.

关键词： diodes quantum light

上海市徐匯区中学敎室自然采光调查的初步报告

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上医学报 1959年第3期 231-235页

作者：张國棟上海第一医学院卫生系学校卫生教研组

外界环境对机体的发育和健康有巨大的影响,特别是学生们经常学习的教室,它的自然采光是否良好关系到他们的视觉器官发育。早在1870年俄国学者就注意到这方面的问題,他在彼得堡调查15所中小学校的学生4,538人,发现从预备班至七年级的学... 详细信息

外界环境对机体的发育和健康有巨大的影响,特别是学生们经常学习的教室,它的自然采光是否良好关系到他们的视觉器官发育。早在1870年俄国学者就注意到这方面的问題,他在彼得堡调查15所中小学校的学生4,538人,发现从预备班至七年级的学生近视率由13.6％递升至42.8％,认为这些学校不良的学习条件对视力有影响。作者对现有的学校教室自然采光进行了解,以便提供主管部门对存在的缺点加以改善,并作为今后新建、扩建和利用住宅改作校舍时的参考。

关键词：自然采光开角学校采光系数上海市

Micro-LED backlight module by deep reinforcement learning and micro-macro-hybrid environment control agent

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Photonics Research 2022年第2期10卷 269-279页

作者： Che-Hsuan Huang Yu-Tang Cheng Yung-Chi Tsao Xinke Liu Hao-Chung kuo College of Materials Science and Engineering Guangdong Research Center for Interfacial Engineering of Functional MaterialsInstitute of Microelectronics(IME)Shenzhen UniversityShenzhen 518060China Department of Photonics&Institute of Electro-Optical Engineering College of Electrical and Computer EngineeringTaiwan Yang Ming Chiao Tung University&Taiwan Chiao Tung UniversityHsinchu 30010China Department of Computer Science University of LiverpoolLiverpoolUK Honhai Semiconductor Research Center TaipeiChina

This paper proposes a micro-LED backlight module with a distributed Bragg reflector(DBR) structure to achieve excellent micro-LED backlight module quality and uses deep reinforcement learning(DRL) architecture for optical design. In the DRL architecture, to solve the computing environment problems of the two extreme structures of micro-scale and macro-scale, this paper proposes an environment control agent and virtual-realistic workflow to ensure that the design environment parameters are highly correlated with experimental results. This paper successfully designed a micro-LED backlight module with a DBR structure by the abovementioned *** micro-LED backlight module with a DBR structure improves the uniformity performance by 32% compared with the micro-LED backlight module without DBR, and the design calculation time required by the DRL method is only 17.9% of the traditional optical simulation.

关键词： methods. agent mentioned

Long-term survival and prognostic implications of Chinese type 2 diabetic patients with coronary artery disease after coronary artery bypass grafting

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Health 2009年第3期1卷 139-145页

作者： Ming C Hsiung Tao-Hsin tung Chung-Yi Chang Yi-Cheng Chuang kuo-Chen Lee Sung-How Sue Yi-Pen Chou Richard Hsiung Chien-Ming Huang Chang-Chyi Lin Wei-Hsian Yin Mason S Young Jeng Wei 不详

This study was conducted to determine the sur-vival rates of type 2 diabetic patients after coro-nary artery bypass grafting (CABG) surgery, and the prognostic factors related to all-cause mor-tality during a 7-year follow-up. The medical re-cords of 816 type 2 diabetic patients who un-derwent primary, isolated CABG surgery during 1997-2003 were studied. The Kaplan-Meier me- thod and Cox regression were used to estimate survival and the independence of prognostic factors associated with all-cause mortality. One hundred and five out of 816 patients expired during the 7-year period. The overall survival rate was 83.5% (95%CI: 78.7-88.3%). Associated prog- nostic factors varied by gender. For males, but not for females, smoking (RR=3.44, 95%CI: 1.01- 11.70), myocardial infarction (RR=4.77, 95% CI: 1.23-18.86), respiratory failure (RR=4.21, 95% CI: 1.48-7.99), cardiogenic shock (RR=12.58, 95% CI: 3.25-20.77), and congestive heart failure (RR= 3.77, 95%CI: 1.10-13.45) were significantly related to all-cause mortality. Older age at sur-gery (RR= 1.15, 95%CI: 1.04-1.27), emergent op-eration (RR= 21.29, 95%CI: 10.03-39.43), pul-monary ede-ma (RR=7.72, 95%CI: 1.89-15.59), and days of ICU stay (RR=1.05, 95%CI: 1.02-1.09) were significant- ly related to all-cause mortality in females only. In conclusion, several gen-der-related differences were noted pertaining to all-cause mortality and its relationship to smok- ing, myocardial infarction, respiratory failure, cardiogenic shock, congestive heart failure, older age at surgery, emergent operation, pul-monary edema, and days of ICU stay.

关键词： Coronary Artery Bypass Grafting Gender Difference Prognostic Factors Survival Type 2 Diabetes

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南岭花岗岩及矿体中一些云母的研究

岩矿测试 1983年第4期2卷 260-270,I0001,I0002页

作者：郭宗山陈树荣董琳郭月敏中国地质科学院矿床地质研究所

一、前言,云母作为造岩矿物广泛分布,对一些成矿和稀少元素起富集作用,这些元素作为云母晶格的组成部分,或形成独立矿物包在云母中,或富集生长于其附近。云母的独立种到目前已超过40个,其中30个已作过结构分析。重要的云母文献已超过30... 详细信息

一、前言,云母作为造岩矿物广泛分布,对一些成矿和稀少元素起富集作用,这些元素作为云母晶格的组成部分,或形成独立矿物包在云母中,或富集生长于其附近。云母的独立种到目前已超过40个,其中30个已作过结构分析。重要的云母文献已超过300余篇。近几年来,日本发现了几个新的云母种,据报导,日本已使用了高分辨率电子显微镜直接观察云母的多型。

关键词：造岩矿物独立矿物南岭花岗岩富集作用云母多型直接观察高分辨率电子显微镜

Recent developments of quantum dot based micro-LED based on non-radiative energy transfer mechanism

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Opto-Electronic Advances 2021年第4期4卷 1-15页

作者： Xiaotong Fan Tingzhu Wu Bin Liu Rong Zhang Hao-Chung kuo Zhong Chen School of Electronic Science and Engineering Fujian Engineering Research Center for Solid-State LightingXiamen UniversityXiamen 361005China Fujian Science&Technology Innovation Laboratory for Energy Materials of China Xiamen 361005China Jiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials Nanjing National Laboratory of MicrostructuresSchool of Electronic Science and EngineeringNanjing UniversityNanjing 210093China Department of Photonics and Graduate Institute of Electro-Optical Engineering College of Electrical and Computer EngineeringChiao Tung UniversityHsinchu 30010China

With regard to micro-light-emitting diodes(micro-LEDs),their excellent brightness,low energy consumption,and ultrahigh resolution are significant ***,the large size of traditional inorganic phosphors and the number of side defects have restricted the practical applications of small sized ***,quantum dot(QD)and nonradiative energy transfer(NRET)have been proposed to solve existing *** possess nanoscale dimensions and high luminous efficiency,and they are suitable for NRET because they are able to nearly contact the micro-LED *** NRET between QDs and micro-LED chip further improves the color conversion efficiency(CCE)and effective quantum yield(EQY)of full-color micro-LED *** this review,we discuss the NRET mechanism for QD micro-LED devices,and then nano-pillar LED,nano-hole LED,and nano-ring LED are introduced in *** structures are beneficial to the NRET between QD and micro-LED,especially nano-ring ***,the challenges and future envisions have also been described.

关键词： quantum dot based micro-LED non-radiative energy transfer atomic layer deposition sidewall defects

CsPbBr3 perovskite quantum-dot paper exhibiting a highest 3 dB bandwidth and realizing a flexible white-light system for visible-light communication

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Photonics Research 2021年第12期9卷 2341-2350页

作者： KONTHOUJAM JAMES SINGH XIAOTONG FAN ANNADA SANKAR SADHU CHUN-HO LIN FANG-JYUN LIOU TINGZHU WU YU-JUNG LU JR-HAU HE ZHONG CHEN TOM WU HAO-CHUNG kuo Department of Photonics&Institute of Electro-Optical Engineering College of Electrical and Computer EngineeringNational Yang Ming Chiao Tung UniversityHsinchu 30010Taiwan International Ph.D.Program in Photonics(UST) College of Electrical and Computer EngineeringNational Yang Ming Chiao Tung UniversityHsinchu 30010Taiwan Department of Electronic Science Fujian Engineering Research Center for Solid-State LightingXiamen UniversityXiamen 361005China School of Materials Science and Engineering University of New South WalesSydneyNSW 2052Australia Research Center for Applied Sciences Academia SinicaTaipei 11529Taiwan Department of Materials Science and Engineering City University of Hong KongKowloon TongHong KongChina

We propose a flexible white-light system for high-speed visible-light communication(VLC)applications,which consists of a semipolar blue InGaN/GaN single-quantum-well micro-light-emitting diode(LED)on a flexible substrate pumping green CsPbBr3 perovskite quantum-dot(PQD)paper in nanostructure form and red CdSe QD *** highest bandwidth for CsPbBr3 PQD paper,229 MHz,is achieved with a blue micro-LED pumping source and a high data transmission rate of 400 Mbps;this is very promising for VLC *** 817 MHz maximum bandwidth and a 1.5 Gbps transmission speed are attained by the proposed semipolar blue *** proposed flexible white light system and the high-bandwidth PQD paper could pave the way for VLC wearable devices.

关键词： pumping communication quantum

Unifying colors by primes

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Light(Science & Applications) 2023年第2期12卷 207-219页

作者： Han-Lin Li Shu-Cherng Fang Bertrand M.T.Lin Way kuo Department of Management Science City University of Hong KongHong KongChina Department of Industrial and Systems Engineering North Carolina State UniversityRaleighNC 27695USA institute of Information Management Yang Ming Chiao Tung UniversityTaiwanChina Hong Kong Institute for Advanced Study City University of Hong KongHong KongChina

RGB and CYMK are two major coloring schemes currently available for light colors and pigment colors,*** systems use letter-based color codes that require a large range of values to represent different *** problem is that these two systems are hard to use for manipulating any operations involving combinations of colors,and they lack the capacity for inter-changeability or *** on prime number theory and Goldbach's conjecture,this study presents a universal color system(C235)using a number-based structure to encode,compute and unify all colors on a color *** proposed C235 system offers a unified representation for the efficient encoding and effective manipulation of *** can be applied to designing a high-rate LCD system and colorizing objects with multiple attributes and DNA codons,opening the door to manipulating colors and lights for even broader applications.

关键词： system unified letter

Barium hexaferrite/muscovite heteroepitaxy with mechanically robust perpendicular magnetic anisotropy

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npj Flexible Electronics 2021年第1期5卷 277-283页

作者： Wei-En Ke Pao-Wen Shao Chang-Yang kuo Haili Song Rong Huang Naoki Yagi Tsuyoshi Kimura Yugandhar Bitla Chun-Fu Chang Ying-Hao Chu Department of Materials Science and Engineering National Yang Ming Chiao Tung UniversityHsinchu 30010Taiwan Department of Electrophysics National Yang Ming Chiao Tung UniversityHsinchu 30010Taiwan National Synchrotron Radiation Research Center(NSRRC) 101 Hsin-Ann RoadHsinchu 30076Taiwan Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education School of ChemistrySun Yat-Sen UniversityGuangzhou 510275China Department of Electronic Engineering East China Normal UniversityShanghai 200062China Department of Advanced Materials Science University of TokyoChiba 277-8651Japan Department of Physics School of Physical SciencesCentral University of RajasthanAjmer 305817India Max Planck Institute for Chemical Physics of Solids Nöthnitzer Straße 4001187 DresdenGermany

Recent advances in the design and development of magnetic storage devices have led to an enormous interest in materials with perpendicular magnetic anisotropy(PMA)*** past decade has witnessed a huge growth in the development of flexible devices such as displays,circuit boards,batteries,memories,*** they have gradually made an impact on people’s ***,the integration of PMA materials with flexible substrates can benefit the development of flexible magnetic *** this study,we developed a heteroepitaxy of BaFe_(12)O_(19)(BaM)/muscovite which displays both mechanical flexibility and PMA *** particular PMA property was characterized by vibrating sample magnetometer,magnetic force microscopy,and x-ray absorption *** quantify the PMA property of the system,the intrinsic magnetic anisotropy energy density of~2.83 Merg cm−3 was ***,the heterostructure exhibits robust PMA property against severe mechanical *** findings of this study on the BaM/muscovite heteroepitaxy have several important implications for research in next-generation flexible magnetic recording devices and actuators.

关键词： ferrite anisotropy magnetic